Compile tested only.
SVN-Revision: 31810
--- /dev/null
+# CONFIG_AD2S1200 is not set
+# CONFIG_AD2S1210 is not set
+# CONFIG_AD2S90 is not set
+# CONFIG_AD5064 is not set
+# CONFIG_AD5360 is not set
+# CONFIG_AD5380 is not set
+# CONFIG_AD5421 is not set
+# CONFIG_AD5446 is not set
+# CONFIG_AD5504 is not set
+# CONFIG_AD5624R_SPI is not set
+# CONFIG_AD5686 is not set
+# CONFIG_AD5764 is not set
+# CONFIG_AD5791 is not set
+# CONFIG_AD5930 is not set
+# CONFIG_AD5933 is not set
+# CONFIG_AD7150 is not set
+# CONFIG_AD7152 is not set
+# CONFIG_AD7192 is not set
+# CONFIG_AD7280 is not set
+# CONFIG_AD7291 is not set
+# CONFIG_AD7298 is not set
+# CONFIG_AD7476 is not set
+# CONFIG_AD7606 is not set
+# CONFIG_AD7746 is not set
+# CONFIG_AD7780 is not set
+# CONFIG_AD7793 is not set
+# CONFIG_AD7816 is not set
+# CONFIG_AD7887 is not set
+# CONFIG_AD799X is not set
+# CONFIG_AD9832 is not set
+# CONFIG_AD9834 is not set
+# CONFIG_AD9850 is not set
+# CONFIG_AD9852 is not set
+# CONFIG_AD9910 is not set
+# CONFIG_AD9951 is not set
+# CONFIG_ADE7753 is not set
+# CONFIG_ADE7754 is not set
+# CONFIG_ADE7758 is not set
+# CONFIG_ADE7759 is not set
+# CONFIG_ADE7854 is not set
+# CONFIG_ADIS16060 is not set
+# CONFIG_ADIS16080 is not set
+# CONFIG_ADIS16130 is not set
+CONFIG_ADIS16201=m
+CONFIG_ADIS16203=m
+CONFIG_ADIS16204=m
+# CONFIG_ADIS16209 is not set
+# CONFIG_ADIS16220 is not set
+# CONFIG_ADIS16240 is not set
+# CONFIG_ADIS16260 is not set
+# CONFIG_ADIS16400 is not set
+# CONFIG_ADT7310 is not set
+# CONFIG_ADT7316 is not set
+# CONFIG_ADT7410 is not set
+# CONFIG_ADXRS450 is not set
+CONFIG_ALIGNMENT_TRAP=y
+CONFIG_APM_EMULATION=y
+CONFIG_ARCH_BINFMT_ELF_RANDOMIZE_PIE=y
+CONFIG_ARCH_HAS_CPUFREQ=y
+CONFIG_ARCH_HAS_CPU_IDLE_WAIT=y
+CONFIG_ARCH_HAS_HOLES_MEMORYMODEL=y
+CONFIG_ARCH_NR_GPIO=0
+CONFIG_ARCH_OMAP=y
+# CONFIG_ARCH_OMAP1 is not set
+CONFIG_ARCH_OMAP2=y
+CONFIG_ARCH_OMAP2PLUS=y
+CONFIG_ARCH_OMAP2PLUS_TYPICAL=y
+# CONFIG_ARCH_OMAP3 is not set
+# CONFIG_ARCH_OMAP4 is not set
+CONFIG_ARCH_OMAP_OTG=y
+CONFIG_ARCH_REQUIRE_GPIOLIB=y
+# CONFIG_ARCH_SELECT_MEMORY_MODEL is not set
+# CONFIG_ARCH_SPARSEMEM_DEFAULT is not set
+CONFIG_ARCH_SUSPEND_POSSIBLE=y
+# CONFIG_ARCH_USES_GETTIMEOFFSET is not set
+CONFIG_ARM=y
+CONFIG_ARM_CPU_SUSPEND=y
+# CONFIG_ARM_ERRATA_326103 is not set
+CONFIG_ARM_ERRATA_364296=y
+CONFIG_ARM_ERRATA_411920=y
+# CONFIG_ARM_EXYNOS4210_CPUFREQ is not set
+CONFIG_ARM_L1_CACHE_SHIFT=5
+CONFIG_ARM_NR_BANKS=8
+CONFIG_ARM_PATCH_PHYS_VIRT=y
+CONFIG_ARM_THUMB=y
+CONFIG_ARM_UNWIND=y
+# CONFIG_ARPD is not set
+CONFIG_ATAGS_PROC=y
+CONFIG_BCMA_POSSIBLE=y
+CONFIG_BINFMT_MISC=y
+# CONFIG_BLK_CGROUP is not set
+# CONFIG_BLK_DEV_INITRD is not set
+CONFIG_BLK_DEV_LOOP=y
+CONFIG_BLK_DEV_RAM=y
+CONFIG_BLK_DEV_RAM_COUNT=16
+CONFIG_BLK_DEV_RAM_SIZE=4096
+CONFIG_BLK_DEV_SD=y
+CONFIG_BRIDGE=m
+CONFIG_BT=m
+# CONFIG_BT_HCIH4P is not set
+CONFIG_BT_HCIUART=m
+# CONFIG_BT_HCIUART_BCSP is not set
+# CONFIG_CACHE_L2X0 is not set
+CONFIG_CBUS=y
+CONFIG_CBUS_RETU=y
+CONFIG_CBUS_RETU_HEADSET=y
+CONFIG_CBUS_RETU_POWERBUTTON=y
+CONFIG_CBUS_RETU_WDT=y
+CONFIG_CBUS_TAHVO=y
+CONFIG_CBUS_TAHVO_USB=m
+CONFIG_CC_OPTIMIZE_FOR_SIZE=y
+# CONFIG_CFS_BANDWIDTH is not set
+CONFIG_CGROUPS=y
+# CONFIG_CGROUP_CPUACCT is not set
+# CONFIG_CGROUP_DEBUG is not set
+# CONFIG_CGROUP_DEVICE is not set
+# CONFIG_CGROUP_FREEZER is not set
+CONFIG_CGROUP_SCHED=y
+CONFIG_CLKDEV_LOOKUP=y
+CONFIG_CLKSRC_MMIO=y
+CONFIG_CMDLINE="root=/dev/mmcblk0p1 rootfstype=ext4,ext3,ext2,squashfs,jffs2 console=tty0 console=ttyO2,115200n8 earlyprintk"
+CONFIG_CMDLINE_FORCE=y
+CONFIG_CONSOLE_TRANSLATIONS=y
+# CONFIG_CPUSETS is not set
+CONFIG_CPU_32v6=y
+CONFIG_CPU_ABRT_EV6=y
+# CONFIG_CPU_BPREDICT_DISABLE is not set
+CONFIG_CPU_CACHE_V6=y
+CONFIG_CPU_CACHE_VIPT=y
+CONFIG_CPU_COPY_V6=y
+CONFIG_CPU_CP15=y
+CONFIG_CPU_CP15_MMU=y
+CONFIG_CPU_FREQ=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_CONSERVATIVE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_ONDEMAND is not set
+CONFIG_CPU_FREQ_DEFAULT_GOV_PERFORMANCE=y
+# CONFIG_CPU_FREQ_DEFAULT_GOV_POWERSAVE is not set
+# CONFIG_CPU_FREQ_DEFAULT_GOV_USERSPACE is not set
+CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y
+CONFIG_CPU_FREQ_GOV_ONDEMAND=y
+CONFIG_CPU_FREQ_GOV_PERFORMANCE=y
+CONFIG_CPU_FREQ_GOV_POWERSAVE=y
+CONFIG_CPU_FREQ_GOV_USERSPACE=y
+CONFIG_CPU_FREQ_STAT=y
+# CONFIG_CPU_FREQ_STAT_DETAILS is not set
+CONFIG_CPU_FREQ_TABLE=y
+CONFIG_CPU_HAS_ASID=y
+CONFIG_CPU_HAS_PMU=y
+# CONFIG_CPU_ICACHE_DISABLE is not set
+CONFIG_CPU_IDLE=y
+CONFIG_CPU_IDLE_GOV_LADDER=y
+CONFIG_CPU_IDLE_GOV_MENU=y
+CONFIG_CPU_PABRT_V6=y
+CONFIG_CPU_PM=y
+CONFIG_CPU_TLB_V6=y
+CONFIG_CPU_USE_DOMAINS=y
+CONFIG_CPU_V6=y
+CONFIG_CRC16=y
+CONFIG_CRC7=y
+CONFIG_CRC_CCITT=y
+CONFIG_CRC_ITU_T=y
+CONFIG_CRYPTO_AEAD2=y
+CONFIG_CRYPTO_AES=y
+CONFIG_CRYPTO_ALGAPI=y
+CONFIG_CRYPTO_ALGAPI2=y
+CONFIG_CRYPTO_ARC4=m
+CONFIG_CRYPTO_BLKCIPHER=m
+CONFIG_CRYPTO_BLKCIPHER2=y
+CONFIG_CRYPTO_CBC=m
+CONFIG_CRYPTO_DES=m
+CONFIG_CRYPTO_DEV_OMAP_AES=y
+CONFIG_CRYPTO_DEV_OMAP_SHAM=y
+CONFIG_CRYPTO_ECB=m
+CONFIG_CRYPTO_HASH=y
+CONFIG_CRYPTO_HASH2=y
+CONFIG_CRYPTO_HW=y
+CONFIG_CRYPTO_MANAGER=m
+CONFIG_CRYPTO_MANAGER2=y
+CONFIG_CRYPTO_MD5=y
+CONFIG_CRYPTO_PCOMP2=y
+CONFIG_CRYPTO_RNG2=y
+CONFIG_CRYPTO_SHA1=y
+CONFIG_CRYPTO_WORKQUEUE=y
+CONFIG_DEBUG_BUGVERBOSE=y
+# CONFIG_DEBUG_FS is not set
+# CONFIG_DEBUG_USER is not set
+CONFIG_DEFAULT_CFQ=y
+CONFIG_DEFAULT_IOSCHED="cfq"
+CONFIG_DEFAULT_TCP_CONG="cubic"
+CONFIG_DEVKMEM=y
+CONFIG_DEVTMPFS=y
+CONFIG_DEVTMPFS_MOUNT=y
+CONFIG_DNOTIFY=y
+CONFIG_DNS_RESOLVER=y
+CONFIG_DUMMY_CONSOLE=y
+CONFIG_ENABLE_MUST_CHECK=y
+CONFIG_EXPORTFS=m
+CONFIG_EXT4_FS=y
+CONFIG_FAIR_GROUP_SCHED=y
+CONFIG_FAT_FS=y
+CONFIG_FB=y
+CONFIG_FB_CFB_COPYAREA=y
+CONFIG_FB_CFB_FILLRECT=y
+CONFIG_FB_CFB_IMAGEBLIT=y
+CONFIG_FB_OMAP=y
+# CONFIG_FB_OMAP_BOOTLOADER_INIT is not set
+CONFIG_FB_OMAP_CONSISTENT_DMA_SIZE=2
+CONFIG_FB_OMAP_LCDC_BLIZZARD=y
+CONFIG_FB_OMAP_LCDC_EXTERNAL=y
+# CONFIG_FB_OMAP_LCDC_HWA742 is not set
+CONFIG_FB_OMAP_LCD_MIPID=y
+# CONFIG_FB_OMAP_MANUAL_UPDATE is not set
+# CONFIG_FB_SM7XX is not set
+# CONFIG_FB_WMT_GE_ROPS is not set
+# CONFIG_FIRMWARE_EDID is not set
+CONFIG_FIRMWARE_IN_KERNEL=y
+CONFIG_FONTS=y
+# CONFIG_FONT_10x18 is not set
+# CONFIG_FONT_6x11 is not set
+# CONFIG_FONT_7x14 is not set
+CONFIG_FONT_8x16=y
+CONFIG_FONT_8x8=y
+# CONFIG_FONT_ACORN_8x8 is not set
+# CONFIG_FONT_MINI_4x6 is not set
+# CONFIG_FONT_PEARL_8x8 is not set
+# CONFIG_FONT_SUN12x22 is not set
+# CONFIG_FONT_SUN8x16 is not set
+CONFIG_FRAMEBUFFER_CONSOLE=y
+# CONFIG_FRAMEBUFFER_CONSOLE_DETECT_PRIMARY is not set
+# CONFIG_FRAMEBUFFER_CONSOLE_ROTATION is not set
+CONFIG_FREEZER=y
+CONFIG_FS_MBCACHE=y
+CONFIG_FS_POSIX_ACL=y
+CONFIG_GENERIC_ACL=y
+CONFIG_GENERIC_ATOMIC64=y
+CONFIG_GENERIC_BUG=y
+CONFIG_GENERIC_CLOCKEVENTS=y
+CONFIG_GENERIC_CLOCKEVENTS_BUILD=y
+CONFIG_GENERIC_GPIO=y
+CONFIG_GENERIC_IRQ_CHIP=y
+CONFIG_GENERIC_IRQ_SHOW=y
+CONFIG_GENERIC_PCI_IOMAP=y
+CONFIG_GPIOLIB=y
+CONFIG_GPIO_SYSFS=y
+# CONFIG_HAMRADIO is not set
+CONFIG_HARDIRQS_SW_RESEND=y
+CONFIG_HAS_DMA=y
+CONFIG_HAS_IOMEM=y
+CONFIG_HAS_IOPORT=y
+CONFIG_HAVE_AOUT=y
+CONFIG_HAVE_ARCH_KGDB=y
+CONFIG_HAVE_ARCH_PFN_VALID=y
+CONFIG_HAVE_CLK=y
+CONFIG_HAVE_C_RECORDMCOUNT=y
+CONFIG_HAVE_DMA_API_DEBUG=y
+CONFIG_HAVE_DYNAMIC_FTRACE=y
+CONFIG_HAVE_FTRACE_MCOUNT_RECORD=y
+CONFIG_HAVE_FUNCTION_GRAPH_TRACER=y
+CONFIG_HAVE_FUNCTION_TRACER=y
+CONFIG_HAVE_GENERIC_DMA_COHERENT=y
+CONFIG_HAVE_GENERIC_HARDIRQS=y
+CONFIG_HAVE_IRQ_WORK=y
+CONFIG_HAVE_KERNEL_GZIP=y
+CONFIG_HAVE_KERNEL_LZMA=y
+CONFIG_HAVE_KERNEL_LZO=y
+CONFIG_HAVE_KERNEL_XZ=y
+CONFIG_HAVE_LATENCYTOP_SUPPORT=y
+CONFIG_HAVE_MEMBLOCK=y
+CONFIG_HAVE_MTD_OTP=y
+CONFIG_HAVE_OPROFILE=y
+CONFIG_HAVE_PERF_EVENTS=y
+CONFIG_HAVE_PROC_CPU=y
+CONFIG_HAVE_REGS_AND_STACK_ACCESS_API=y
+CONFIG_HAVE_SCHED_CLOCK=y
+CONFIG_HAVE_SPARSE_IRQ=y
+CONFIG_HID=y
+CONFIG_HID_APPLE=m
+CONFIG_HID_SUPPORT=y
+CONFIG_HWMON=m
+CONFIG_HW_CONSOLE=y
+CONFIG_HW_RANDOM=y
+CONFIG_HW_RANDOM_OMAP=y
+CONFIG_HZ=128
+CONFIG_I2C=y
+CONFIG_I2C_BOARDINFO=y
+CONFIG_I2C_CHARDEV=y
+CONFIG_I2C_COMPAT=y
+CONFIG_I2C_HELPER_AUTO=y
+CONFIG_I2C_OMAP=y
+CONFIG_IIO=y
+# CONFIG_IIO_BUFFER is not set
+# CONFIG_IIO_SIMPLE_DUMMY is not set
+# CONFIG_IIO_TRIGGER is not set
+CONFIG_INET6_XFRM_MODE_BEET=m
+CONFIG_INET6_XFRM_MODE_TRANSPORT=m
+CONFIG_INET6_XFRM_MODE_TUNNEL=m
+CONFIG_INET_DIAG=y
+CONFIG_INET_TCP_DIAG=y
+CONFIG_INET_TUNNEL=m
+# CONFIG_INLINE_READ_UNLOCK is not set
+# CONFIG_INLINE_READ_UNLOCK_IRQ is not set
+# CONFIG_INLINE_SPIN_UNLOCK is not set
+# CONFIG_INLINE_SPIN_UNLOCK_IRQ is not set
+# CONFIG_INLINE_WRITE_UNLOCK is not set
+# CONFIG_INLINE_WRITE_UNLOCK_IRQ is not set
+CONFIG_INPUT=y
+# CONFIG_INPUT_APMPOWER is not set
+CONFIG_INPUT_EVDEV=y
+CONFIG_INPUT_JOYSTICK=y
+CONFIG_INPUT_KEYBOARD=y
+CONFIG_INPUT_MOUSE=y
+CONFIG_INPUT_MOUSEDEV=y
+# CONFIG_INPUT_MOUSEDEV_PSAUX is not set
+CONFIG_INPUT_MOUSEDEV_SCREEN_X=800
+CONFIG_INPUT_MOUSEDEV_SCREEN_Y=480
+CONFIG_INPUT_TABLET=y
+CONFIG_INPUT_TOUCHSCREEN=y
+CONFIG_IOSCHED_CFQ=y
+# CONFIG_IOSCHED_DEADLINE is not set
+CONFIG_IPV6=y
+CONFIG_IPV6_MIP6=m
+CONFIG_IPV6_PRIVACY=y
+CONFIG_IPV6_ROUTER_PREF=y
+CONFIG_IPV6_SIT=m
+# CONFIG_IP_ADVANCED_ROUTER is not set
+# CONFIG_IP_MROUTE is not set
+CONFIG_IR_LIRC_CODEC=m
+CONFIG_IR_MCE_KBD_DECODER=m
+CONFIG_IR_RC5_SZ_DECODER=m
+# CONFIG_IR_REDRAT3 is not set
+CONFIG_IR_SANYO_DECODER=m
+# CONFIG_ISDN is not set
+# CONFIG_ISP1301_OMAP is not set
+CONFIG_JBD2=y
+CONFIG_JFFS2_LZO=y
+CONFIG_JFFS2_ZLIB=y
+# CONFIG_JOYSTICK_A3D is not set
+# CONFIG_JOYSTICK_ADI is not set
+# CONFIG_JOYSTICK_ANALOG is not set
+# CONFIG_JOYSTICK_AS5011 is not set
+# CONFIG_JOYSTICK_COBRA is not set
+# CONFIG_JOYSTICK_GF2K is not set
+# CONFIG_JOYSTICK_GRIP is not set
+# CONFIG_JOYSTICK_GRIP_MP is not set
+# CONFIG_JOYSTICK_GUILLEMOT is not set
+# CONFIG_JOYSTICK_IFORCE is not set
+# CONFIG_JOYSTICK_INTERACT is not set
+# CONFIG_JOYSTICK_JOYDUMP is not set
+# CONFIG_JOYSTICK_MAGELLAN is not set
+# CONFIG_JOYSTICK_SIDEWINDER is not set
+# CONFIG_JOYSTICK_SPACEBALL is not set
+# CONFIG_JOYSTICK_SPACEORB is not set
+# CONFIG_JOYSTICK_STINGER is not set
+# CONFIG_JOYSTICK_TMDC is not set
+# CONFIG_JOYSTICK_TWIDJOY is not set
+# CONFIG_JOYSTICK_WARRIOR is not set
+# CONFIG_JOYSTICK_XPAD is not set
+# CONFIG_JOYSTICK_ZHENHUA is not set
+CONFIG_KALLSYMS=y
+CONFIG_KALLSYMS_ALL=y
+CONFIG_KEXEC=y
+# CONFIG_KEYBOARD_GPIO is not set
+CONFIG_KEYBOARD_LM8323=y
+# CONFIG_KEYBOARD_OMAP is not set
+CONFIG_KEYBOARD_TSC2301=y
+CONFIG_KEYS=y
+CONFIG_KTIME_SCALAR=y
+# CONFIG_KXSD9 is not set
+# CONFIG_LEDS is not set
+# CONFIG_LEDS_REGULATOR is not set
+CONFIG_LEDS_TRIGGER_BACKLIGHT=y
+CONFIG_LEDS_TRIGGER_GPIO=y
+CONFIG_LIRC=m
+# CONFIG_LIS3L02DQ is not set
+CONFIG_LLC=m
+CONFIG_LOCKD=m
+CONFIG_LOG_BUF_SHIFT=18
+CONFIG_LZO_COMPRESS=y
+CONFIG_LZO_DECOMPRESS=y
+CONFIG_MACH_NOKIA_N800=y
+CONFIG_MACH_NOKIA_N810=y
+CONFIG_MACH_NOKIA_N810_WIMAX=y
+CONFIG_MACH_NOKIA_N8X0=y
+CONFIG_MACH_OMAP2_TUSB6010=y
+# CONFIG_MACH_OMAP_APOLLON is not set
+# CONFIG_MACH_OMAP_GENERIC is not set
+# CONFIG_MACH_OMAP_H4 is not set
+CONFIG_MACVLAN=m
+CONFIG_MAC_PARTITION=y
+# CONFIG_MAX1363 is not set
+# CONFIG_MAX517 is not set
+CONFIG_MEDIA_ATTACH=y
+CONFIG_MEDIA_SUPPORT=m
+CONFIG_MEDIA_TUNER=m
+CONFIG_MEDIA_TUNER_MC44S803=m
+CONFIG_MEDIA_TUNER_MT20XX=m
+CONFIG_MEDIA_TUNER_SIMPLE=m
+CONFIG_MEDIA_TUNER_TDA18271=m
+CONFIG_MEDIA_TUNER_TDA827X=m
+CONFIG_MEDIA_TUNER_TDA8290=m
+CONFIG_MEDIA_TUNER_TDA9887=m
+CONFIG_MEDIA_TUNER_TEA5761=m
+CONFIG_MEDIA_TUNER_TEA5767=m
+CONFIG_MEDIA_TUNER_XC2028=m
+CONFIG_MEDIA_TUNER_XC4000=m
+CONFIG_MEDIA_TUNER_XC5000=m
+CONFIG_MENELAUS=y
+# CONFIG_MFD_T7L66XB is not set
+CONFIG_MMC=y
+CONFIG_MMC_BLOCK=y
+CONFIG_MMC_OMAP=y
+CONFIG_MMC_SDHCI=y
+CONFIG_MMC_SDHCI_PLTFM=y
+CONFIG_MMC_SPI=y
+CONFIG_MMC_UNSAFE_RESUME=y
+# CONFIG_MOUSE_BCM5974 is not set
+CONFIG_MOUSE_PS2=m
+# CONFIG_MOUSE_PS2_ALPS is not set
+# CONFIG_MOUSE_PS2_ELANTECH is not set
+# CONFIG_MOUSE_PS2_LOGIPS2PP is not set
+# CONFIG_MOUSE_PS2_SYNAPTICS is not set
+# CONFIG_MOUSE_PS2_TOUCHKIT is not set
+# CONFIG_MOUSE_PS2_TRACKPOINT is not set
+# CONFIG_MOUSE_SERIAL is not set
+# CONFIG_MOUSE_VSXXXAA is not set
+CONFIG_MSDOS_FS=y
+CONFIG_MTD_BLOCK2MTD=y
+# CONFIG_MTD_CFI is not set
+CONFIG_MTD_CMDLINE_PARTS=y
+# CONFIG_MTD_COMPLEX_MAPPINGS is not set
+CONFIG_MTD_ONENAND=y
+# CONFIG_MTD_ONENAND_2X_PROGRAM is not set
+# CONFIG_MTD_ONENAND_GENERIC is not set
+CONFIG_MTD_ONENAND_OMAP2=y
+CONFIG_MTD_ONENAND_OTP=y
+# CONFIG_MTD_ONENAND_SIM is not set
+# CONFIG_MTD_ONENAND_VERIFY_WRITE is not set
+# CONFIG_MTD_ROOTFS_ROOT_DEV is not set
+# CONFIG_MTD_ROOTFS_SPLIT is not set
+CONFIG_MULTI_IRQ_HANDLER=y
+# CONFIG_MUSB_PIO_ONLY is not set
+CONFIG_N810BM=m
+CONFIG_NAMESPACES=y
+CONFIG_NEED_DMA_MAP_STATE=y
+CONFIG_NEED_PER_CPU_KM=y
+# CONFIG_NETPRIO_CGROUP is not set
+# CONFIG_NET_NS is not set
+# CONFIG_NET_SCHED is not set
+CONFIG_NFSD=m
+# CONFIG_NFSD_FAULT_INJECTION is not set
+CONFIG_NFSD_V2_ACL=y
+CONFIG_NFSD_V3_ACL=y
+CONFIG_NFSD_V4=y
+CONFIG_NFS_ACL_SUPPORT=m
+CONFIG_NFS_FS=m
+CONFIG_NFS_USE_KERNEL_DNS=y
+# CONFIG_NFS_USE_LEGACY_DNS is not set
+# CONFIG_NFS_USE_NEW_IDMAPPER is not set
+CONFIG_NFS_V3_ACL=y
+CONFIG_NFS_V4=y
+CONFIG_NFS_V4_1=y
+CONFIG_NLS=y
+CONFIG_NOP_USB_XCEIV=m
+CONFIG_NO_HZ=y
+# CONFIG_OMAP2_DSS is not set
+CONFIG_OMAP_32K_TIMER=y
+CONFIG_OMAP_32K_TIMER_HZ=128
+CONFIG_OMAP_BOOT_REASON=y
+CONFIG_OMAP_BOOT_TAG=y
+CONFIG_OMAP_COMPONENT_VERSION=y
+CONFIG_OMAP_DM_TIMER=y
+CONFIG_OMAP_GPIO_SWITCH=y
+CONFIG_OMAP_MBOX_FWK=y
+CONFIG_OMAP_MBOX_KFIFO_SIZE=256
+CONFIG_OMAP_MCBSP=y
+CONFIG_OMAP_MUX=y
+# CONFIG_OMAP_MUX_DEBUG is not set
+CONFIG_OMAP_MUX_WARNINGS=y
+CONFIG_OMAP_PACKAGE_ZAC=y
+CONFIG_OMAP_PM_NOOP=y
+CONFIG_OMAP_RESET_CLOCKS=y
+# CONFIG_OMAP_WATCHDOG is not set
+CONFIG_PAGEFLAGS_EXTENDED=y
+CONFIG_PAGE_OFFSET=0xC0000000
+# CONFIG_PCI_SYSCALL is not set
+CONFIG_PERF_USE_VMALLOC=y
+CONFIG_PM=y
+CONFIG_PM_CLK=y
+# CONFIG_PM_DEBUG is not set
+CONFIG_PM_RUNTIME=y
+CONFIG_PM_SLEEP=y
+CONFIG_PNFS_FILE_LAYOUT=m
+CONFIG_POSIX_MQUEUE=y
+CONFIG_POSIX_MQUEUE_SYSCTL=y
+CONFIG_PPP=m
+CONFIG_PPP_ASYNC=m
+CONFIG_PPP_BSDCOMP=m
+CONFIG_PPP_DEFLATE=m
+CONFIG_PPP_MPPE=m
+# CONFIG_PPP_MULTILINK is not set
+CONFIG_PPP_SYNC_TTY=m
+CONFIG_PREEMPT=y
+CONFIG_PREEMPT_COUNT=y
+# CONFIG_PREEMPT_NONE is not set
+CONFIG_PREEMPT_RCU=y
+CONFIG_PRINTK_TIME=y
+CONFIG_PROC_PAGE_MONITOR=y
+CONFIG_RCU_BOOST=y
+CONFIG_RCU_BOOST_DELAY=500
+CONFIG_RCU_BOOST_PRIO=1
+# CONFIG_RC_ATI_REMOTE is not set
+CONFIG_RC_CORE=m
+# CONFIG_RC_LOOPBACK is not set
+CONFIG_REGMAP=y
+CONFIG_REGMAP_I2C=m
+CONFIG_REGMAP_SPI=m
+CONFIG_REGULATOR=y
+# CONFIG_REGULATOR_AD5398 is not set
+# CONFIG_REGULATOR_DEBUG is not set
+# CONFIG_REGULATOR_DUMMY is not set
+# CONFIG_REGULATOR_ISL6271A is not set
+# CONFIG_REGULATOR_LP3971 is not set
+# CONFIG_REGULATOR_LP3972 is not set
+# CONFIG_REGULATOR_MAX1586 is not set
+# CONFIG_REGULATOR_MAX8649 is not set
+# CONFIG_REGULATOR_MAX8660 is not set
+# CONFIG_REGULATOR_MAX8952 is not set
+# CONFIG_REGULATOR_TPS65023 is not set
+# CONFIG_REGULATOR_TPS6507X is not set
+# CONFIG_REGULATOR_TPS6524X is not set
+# CONFIG_REGULATOR_USERSPACE_CONSUMER is not set
+# CONFIG_RESOURCE_COUNTERS is not set
+# CONFIG_RFKILL_REGULATOR is not set
+# CONFIG_RT_GROUP_SCHED is not set
+CONFIG_SCHED_AUTOGROUP=y
+CONFIG_SCSI=y
+# CONFIG_SCSI_LOWLEVEL is not set
+# CONFIG_SENSORS_AK8975 is not set
+# CONFIG_SENSORS_HMC5843 is not set
+# CONFIG_SENSORS_ISL29018 is not set
+CONFIG_SENSORS_LM75=m
+CONFIG_SENSORS_TSL2563=m
+CONFIG_SERIAL_8250_NR_UARTS=4
+CONFIG_SERIAL_8250_RUNTIME_UARTS=4
+CONFIG_SERIAL_OMAP=y
+CONFIG_SERIAL_OMAP_CONSOLE=y
+CONFIG_SERIO=y
+CONFIG_SERIO_LIBPS2=y
+CONFIG_SERIO_SERPORT=y
+# CONFIG_SLAB is not set
+CONFIG_SLHC=m
+CONFIG_SLUB=y
+CONFIG_SND=m
+CONFIG_SND_ARM=y
+# CONFIG_SND_EMU10K1_SEQ is not set
+CONFIG_SND_JACK=y
+CONFIG_SND_MIXER_OSS=m
+CONFIG_SND_OMAP_SOC=m
+CONFIG_SND_OMAP_SOC_MCBSP=m
+CONFIG_SND_OMAP_SOC_N810=m
+# CONFIG_SND_OPL3_LIB_SEQ is not set
+# CONFIG_SND_OPL4_LIB_SEQ is not set
+CONFIG_SND_PCM=m
+CONFIG_SND_PCM_OSS=m
+# CONFIG_SND_RAWMIDI_SEQ is not set
+# CONFIG_SND_SBAWE_SEQ is not set
+CONFIG_SND_SOC=m
+# CONFIG_SND_SOC_ALL_CODECS is not set
+CONFIG_SND_SOC_I2C_AND_SPI=m
+CONFIG_SND_SOC_TLV320AIC3X=m
+CONFIG_SND_SPI=y
+CONFIG_SND_SUPPORT_OLD_API=y
+CONFIG_SND_TIMER=m
+CONFIG_SOC_OMAP2420=y
+# CONFIG_SOC_OMAP2430 is not set
+CONFIG_SOUND=m
+CONFIG_SOUND_OSS_CORE=y
+CONFIG_SOUND_OSS_CORE_PRECLAIM=y
+CONFIG_SPARSE_IRQ=y
+CONFIG_SPEAKUP=m
+CONFIG_SPEAKUP_SYNTH_ACNTPC=m
+CONFIG_SPEAKUP_SYNTH_ACNTSA=m
+CONFIG_SPEAKUP_SYNTH_APOLLO=m
+CONFIG_SPEAKUP_SYNTH_AUDPTR=m
+CONFIG_SPEAKUP_SYNTH_BNS=m
+CONFIG_SPEAKUP_SYNTH_DECEXT=m
+CONFIG_SPEAKUP_SYNTH_DECPC=m
+CONFIG_SPEAKUP_SYNTH_DECTLK=m
+CONFIG_SPEAKUP_SYNTH_DTLK=m
+CONFIG_SPEAKUP_SYNTH_DUMMY=m
+CONFIG_SPEAKUP_SYNTH_KEYPC=m
+CONFIG_SPEAKUP_SYNTH_LTLK=m
+CONFIG_SPEAKUP_SYNTH_SOFT=m
+CONFIG_SPEAKUP_SYNTH_SPKOUT=m
+CONFIG_SPEAKUP_SYNTH_TXPRT=m
+CONFIG_SPI=y
+CONFIG_SPI_MASTER=y
+CONFIG_SPI_OMAP24XX=y
+CONFIG_SPI_TSC2301=y
+# CONFIG_SPI_TSC2301_AUDIO is not set
+CONFIG_STP=m
+# CONFIG_STRIP_ASM_SYMS is not set
+CONFIG_SUNRPC=m
+CONFIG_SUNRPC_BACKCHANNEL=y
+CONFIG_SUNRPC_GSS=m
+CONFIG_SUSPEND=y
+CONFIG_SUSPEND_FREEZER=y
+# CONFIG_SYN_COOKIES is not set
+CONFIG_SYS_SUPPORTS_APM_EMULATION=y
+# CONFIG_TABLET_USB_ACECAD is not set
+# CONFIG_TABLET_USB_AIPTEK is not set
+# CONFIG_TABLET_USB_GTCO is not set
+# CONFIG_TABLET_USB_HANWANG is not set
+# CONFIG_TABLET_USB_KBTAB is not set
+# CONFIG_TABLET_USB_WACOM is not set
+# CONFIG_TCP_CONG_ADVANCED is not set
+CONFIG_TCP_CONG_CUBIC=y
+CONFIG_TINY_PREEMPT_RCU=y
+CONFIG_TMPFS_POSIX_ACL=y
+# CONFIG_TOUCHSCREEN_ATMEL_MXT is not set
+# CONFIG_TOUCHSCREEN_AUO_PIXCIR is not set
+# CONFIG_TOUCHSCREEN_BU21013 is not set
+# CONFIG_TOUCHSCREEN_DYNAPRO is not set
+# CONFIG_TOUCHSCREEN_EGALAX is not set
+# CONFIG_TOUCHSCREEN_HAMPSHIRE is not set
+# CONFIG_TOUCHSCREEN_MAX11801 is not set
+# CONFIG_TOUCHSCREEN_PIXCIR is not set
+# CONFIG_TOUCHSCREEN_ST1232 is not set
+CONFIG_TOUCHSCREEN_TSC2005=y
+CONFIG_TOUCHSCREEN_TSC2301=y
+# CONFIG_TOUCHSCREEN_TSC_SERIO is not set
+# CONFIG_TSL2583 is not set
+CONFIG_TUN=m
+CONFIG_UACCESS_WITH_MEMCPY=y
+CONFIG_UID16=y
+CONFIG_USB=m
+# CONFIG_USB_ARCH_HAS_EHCI is not set
+# CONFIG_USB_ARCH_HAS_XHCI is not set
+# CONFIG_USB_AUDIO is not set
+# CONFIG_USB_CDC_COMPOSITE is not set
+CONFIG_USB_COMMON=m
+# CONFIG_USB_DUMMY_HCD is not set
+CONFIG_USB_ETH=m
+# CONFIG_USB_ETH_EEM is not set
+# CONFIG_USB_ETH_RNDIS is not set
+# CONFIG_USB_FILE_STORAGE is not set
+# CONFIG_USB_FUNCTIONFS is not set
+# CONFIG_USB_FUSB300 is not set
+CONFIG_USB_GADGET=m
+# CONFIG_USB_GADGETFS is not set
+# CONFIG_USB_GADGET_DEBUG_FILES is not set
+CONFIG_USB_GADGET_DUALSPEED=y
+CONFIG_USB_GADGET_MUSB_HDRC=m
+CONFIG_USB_GADGET_VBUS_DRAW=100
+CONFIG_USB_GSPCA=m
+# CONFIG_USB_G_DBGP is not set
+# CONFIG_USB_G_HID is not set
+CONFIG_USB_G_NCM=m
+# CONFIG_USB_G_PRINTER is not set
+# CONFIG_USB_G_SERIAL is not set
+CONFIG_USB_HID=m
+# CONFIG_USB_M66592 is not set
+# CONFIG_USB_MUSB_AM35X is not set
+CONFIG_USB_MUSB_HDRC=m
+# CONFIG_USB_MUSB_OMAP2PLUS is not set
+CONFIG_USB_MUSB_TUSB6010=m
+# CONFIG_USB_MV_UDC is not set
+# CONFIG_USB_NET2272 is not set
+CONFIG_USB_NET_CDC_NCM=m
+# CONFIG_USB_OMAP is not set
+CONFIG_USB_OTG_UTILS=y
+# CONFIG_USB_PWC is not set
+# CONFIG_USB_R8A66597 is not set
+CONFIG_USB_SERIAL=m
+CONFIG_USB_SUPPORT=y
+CONFIG_USB_TUSB_OMAP_DMA=y
+CONFIG_USB_USBNET=m
+# CONFIG_USB_ZERO is not set
+# CONFIG_USER_NS is not set
+# CONFIG_V4L_PLATFORM_DRIVERS is not set
+CONFIG_V4L_USB_DRIVERS=y
+CONFIG_VECTORS_BASE=0xffff0000
+CONFIG_VFAT_FS=y
+CONFIG_VFP=y
+CONFIG_VIDEO_CAPTURE_DRIVERS=y
+# CONFIG_VIDEO_CPIA2 is not set
+CONFIG_VIDEO_DEV=m
+CONFIG_VIDEO_IR_I2C=m
+CONFIG_VIDEO_MEDIA=m
+CONFIG_VIDEO_TCM825X=m
+CONFIG_VIDEO_V4L2=m
+CONFIG_VIDEO_V4L2_COMMON=m
+CONFIG_VLAN_8021Q=m
+CONFIG_VT=y
+CONFIG_VT_CONSOLE=y
+CONFIG_VT_CONSOLE_SLEEP=y
+# CONFIG_VT_HW_CONSOLE_BINDING is not set
+CONFIG_WATCHDOG_NOWAYOUT=y
+# CONFIG_WEXT_PRIV is not set
+# CONFIG_WEXT_SPY is not set
+CONFIG_XZ_DEC=y
+CONFIG_XZ_DEC_ARM=y
+CONFIG_XZ_DEC_ARMTHUMB=y
+CONFIG_XZ_DEC_BCJ=y
+# CONFIG_ZBOOT_ROM is not set
+CONFIG_ZBOOT_ROM_BSS=0x10200000
+CONFIG_ZBOOT_ROM_TEXT=0x10C08000
+CONFIG_ZONE_DMA_FLAG=0
--- /dev/null
+--- /dev/null
++++ b/arch/arm/plat-omap/bootreason.c
+@@ -0,0 +1,79 @@
++/*
++ * linux/arch/arm/plat-omap/bootreason.c
++ *
++ * OMAP Bootreason passing
++ *
++ * Copyright (c) 2004 Nokia
++ *
++ * Written by David Weinehall <david.weinehall@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify it
++ * under the terms of the GNU General Public License as published by the
++ * Free Software Foundation; either version 2 of the License, or (at your
++ * option) any later version.
++ *
++ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED
++ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
++ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
++ * NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
++ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
++ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
++ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
++ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
++ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
++ * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
++ *
++ * You should have received a copy of the GNU General Public License along
++ * with this program; if not, write to the Free Software Foundation, Inc.,
++ * 675 Mass Ave, Cambridge, MA 02139, USA.
++ */
++#include <linux/proc_fs.h>
++#include <linux/errno.h>
++#include <plat/board.h>
++
++static char boot_reason[16];
++
++static int omap_bootreason_read_proc(char *page, char **start, off_t off,
++ int count, int *eof, void *data)
++{
++ int len = 0;
++
++ len += sprintf(page + len, "%s\n", boot_reason);
++
++ *start = page + off;
++
++ if (len > off)
++ len -= off;
++ else
++ len = 0;
++
++ return len < count ? len : count;
++}
++
++static int __init bootreason_init(void)
++{
++ const struct omap_boot_reason_config *cfg;
++ int reason_valid = 0;
++
++ cfg = omap_get_config(OMAP_TAG_BOOT_REASON, struct omap_boot_reason_config);
++ if (cfg != NULL) {
++ strncpy(boot_reason, cfg->reason_str, sizeof(cfg->reason_str));
++ boot_reason[sizeof(cfg->reason_str)] = 0;
++ reason_valid = 1;
++ } else {
++ /* Read the boot reason from the OMAP registers */
++ }
++
++ if (!reason_valid)
++ return -ENOENT;
++
++ printk(KERN_INFO "Bootup reason: %s\n", boot_reason);
++
++ if (!create_proc_read_entry("bootreason", S_IRUGO, NULL,
++ omap_bootreason_read_proc, NULL))
++ return -ENOMEM;
++
++ return 0;
++}
++
++late_initcall(bootreason_init);
+--- a/arch/arm/plat-omap/common.c
++++ b/arch/arm/plat-omap/common.c
+@@ -24,18 +24,90 @@
+
+ #include <plat/omap-secure.h>
+
++#include <asm/setup.h>
++
+
+ #define NO_LENGTH_CHECK 0xffffffff
+
+ struct omap_board_config_kernel *omap_board_config __initdata;
+ int omap_board_config_size;
+
++unsigned char omap_bootloader_tag[1024];
++int omap_bootloader_tag_len;
++
++/* used by omap-smp.c and board-4430sdp.c */
++void __iomem *gic_cpu_base_addr;
++
++#ifdef CONFIG_OMAP_BOOT_TAG
++
++static int __init parse_tag_omap(const struct tag *tag)
++{
++ u32 size = tag->hdr.size - (sizeof(tag->hdr) >> 2);
++
++ size <<= 2;
++ if (size > sizeof(omap_bootloader_tag))
++ return -1;
++
++ memcpy(omap_bootloader_tag, tag->u.omap.data, size);
++ omap_bootloader_tag_len = size;
++
++ return 0;
++}
++
++__tagtable(ATAG_BOARD, parse_tag_omap);
++
++#endif
++
+ static const void *__init get_config(u16 tag, size_t len,
+ int skip, size_t *len_out)
+ {
+ struct omap_board_config_kernel *kinfo = NULL;
+ int i;
+
++#ifdef CONFIG_OMAP_BOOT_TAG
++ struct omap_board_config_entry *info = NULL;
++
++ if (omap_bootloader_tag_len > 4)
++ info = (struct omap_board_config_entry *) omap_bootloader_tag;
++ while (info != NULL) {
++ u8 *next;
++
++ if (info->tag == tag) {
++ if (skip == 0)
++ break;
++ skip--;
++ }
++
++ if ((info->len & 0x03) != 0) {
++ /* We bail out to avoid an alignment fault */
++ printk(KERN_ERR "OMAP peripheral config: Length (%d) not word-aligned (tag %04x)\n",
++ info->len, info->tag);
++ return NULL;
++ }
++ next = (u8 *) info + sizeof(*info) + info->len;
++ if (next >= omap_bootloader_tag + omap_bootloader_tag_len)
++ info = NULL;
++ else
++ info = (struct omap_board_config_entry *) next;
++ }
++ if (info != NULL) {
++ /* Check the length as a lame attempt to check for
++ * binary inconsistency. */
++ if (len != NO_LENGTH_CHECK) {
++ /* Word-align len */
++ if (len & 0x03)
++ len = (len + 3) & ~0x03;
++ if (info->len != len) {
++ printk(KERN_ERR "OMAP peripheral config: Length mismatch with tag %x (want %d, got %d)\n",
++ tag, len, info->len);
++ return NULL;
++ }
++ }
++ if (len_out != NULL)
++ *len_out = info->len;
++ return info->data;
++ }
++#endif
+ /* Try to find the config from the board-specific structures
+ * in the kernel. */
+ for (i = 0; i < omap_board_config_size; i++) {
+--- /dev/null
++++ b/arch/arm/plat-omap/component-version.c
+@@ -0,0 +1,64 @@
++/*
++ * linux/arch/arm/plat-omap/component-version.c
++ *
++ * Copyright (C) 2005 Nokia Corporation
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/err.h>
++#include <linux/proc_fs.h>
++#include <plat/board.h>
++
++static int component_version_read_proc(char *page, char **start, off_t off,
++ int count, int *eof, void *data)
++{
++ int len, i;
++ const struct omap_version_config *ver;
++ char *p;
++
++ i = 0;
++ p = page;
++ while ((ver = omap_get_nr_config(OMAP_TAG_VERSION_STR,
++ struct omap_version_config, i)) != NULL) {
++ p += sprintf(p, "%-12s%s\n", ver->component, ver->version);
++ i++;
++ }
++
++ len = (p - page) - off;
++ if (len < 0)
++ len = 0;
++
++ *eof = (len <= count) ? 1 : 0;
++ *start = page + off;
++
++ return len;
++}
++
++static int __init component_version_init(void)
++{
++ if (omap_get_config(OMAP_TAG_VERSION_STR, struct omap_version_config) == NULL)
++ return -ENODEV;
++ if (!create_proc_read_entry("component_version", S_IRUGO, NULL,
++ component_version_read_proc, NULL))
++ return -ENOMEM;
++
++ return 0;
++}
++
++static void __exit component_version_exit(void)
++{
++ remove_proc_entry("component_version", NULL);
++}
++
++late_initcall(component_version_init);
++module_exit(component_version_exit);
++
++MODULE_AUTHOR("Juha Yrjölä <juha.yrjola@nokia.com>");
++MODULE_DESCRIPTION("Component version driver");
++MODULE_LICENSE("GPL");
+--- a/arch/arm/plat-omap/Kconfig
++++ b/arch/arm/plat-omap/Kconfig
+@@ -84,6 +84,38 @@ config OMAP_RESET_CLOCKS
+ probably do not want this option enabled until your
+ device drivers work properly.
+
++config OMAP_BOOT_TAG
++ bool "OMAP bootloader information passing"
++ depends on ARCH_OMAP
++ default n
++ help
++ Say Y, if you have a bootloader which passes information
++ about your board and its peripheral configuration.
++
++config OMAP_BOOT_REASON
++ bool "Support for boot reason"
++ depends on OMAP_BOOT_TAG
++ default n
++ help
++ Say Y, if you want to have a procfs entry for reading the boot
++ reason in user-space.
++
++config OMAP_COMPONENT_VERSION
++ bool "Support for component version display"
++ depends on OMAP_BOOT_TAG && PROC_FS
++ default n
++ help
++ Say Y, if you want to have a procfs entry for reading component
++ versions (supplied by the bootloader) in user-space.
++
++config OMAP_GPIO_SWITCH
++ bool "GPIO switch support"
++ help
++ Say Y, if you want to have support for reporting of GPIO
++ switches (e.g. cover switches) via sysfs. Your bootloader has
++ to provide information about the switches to the kernel via the
++ ATAG_BOARD mechanism if they're not defined by the board config.
++
+ config OMAP_MUX
+ bool "OMAP multiplexing support"
+ depends on ARCH_OMAP
+--- a/arch/arm/plat-omap/Makefile
++++ b/arch/arm/plat-omap/Makefile
+@@ -20,6 +20,9 @@ obj-$(CONFIG_ARCH_OMAP4) += omap_device.
+ obj-$(CONFIG_OMAP_MCBSP) += mcbsp.o
+
+ obj-$(CONFIG_OMAP_DM_TIMER) += dmtimer.o
++obj-$(CONFIG_OMAP_BOOT_REASON) += bootreason.o
++obj-$(CONFIG_OMAP_COMPONENT_VERSION) += component-version.o
++obj-$(CONFIG_OMAP_GPIO_SWITCH) += gpio-switch.o
+ obj-$(CONFIG_OMAP_DEBUG_DEVICES) += debug-devices.o
+ obj-$(CONFIG_OMAP_DEBUG_LEDS) += debug-leds.o
+ i2c-omap-$(CONFIG_I2C_OMAP) := i2c.o
+--- a/arch/arm/include/asm/setup.h
++++ b/arch/arm/include/asm/setup.h
+@@ -136,6 +136,13 @@ struct tag_acorn {
+ __u8 adfsdrives;
+ };
+
++/* TI OMAP specific information */
++#define ATAG_BOARD 0x414f4d50
++
++struct tag_omap {
++ u8 data[0];
++};
++
+ /* footbridge memory clock, see arch/arm/mach-footbridge/arch.c */
+ #define ATAG_MEMCLK 0x41000402
+
+@@ -162,6 +169,11 @@ struct tag {
+ struct tag_acorn acorn;
+
+ /*
++ * OMAP specific
++ */
++ struct tag_omap omap;
++
++ /*
+ * DC21285 specific
+ */
+ struct tag_memclk memclk;
+--- /dev/null
++++ b/arch/arm/plat-omap/gpio-switch.c
+@@ -0,0 +1,554 @@
++/*
++ * linux/arch/arm/plat-omap/gpio-switch.c
++ *
++ * Copyright (C) 2004-2006 Nokia Corporation
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com>
++ * and Paul Mundt <paul.mundt@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/sched.h>
++#include <linux/init.h>
++#include <linux/list.h>
++#include <linux/irq.h>
++#include <linux/interrupt.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/timer.h>
++#include <linux/err.h>
++#include <linux/slab.h>
++#include <linux/gpio.h>
++#include <plat/hardware.h>
++#include <plat/irqs.h>
++#include <plat/mux.h>
++#include <plat/board.h>
++#include <plat/gpio-switch.h>
++
++struct gpio_switch {
++ char name[14];
++ u16 gpio;
++ unsigned flags:4;
++ unsigned type:4;
++ unsigned state:1;
++ unsigned both_edges:1;
++
++ u16 debounce_rising;
++ u16 debounce_falling;
++
++ void (* notify)(void *data, int state);
++ void *notify_data;
++
++ struct work_struct work;
++ struct timer_list timer;
++ struct platform_device pdev;
++
++ struct list_head node;
++};
++
++static LIST_HEAD(gpio_switches);
++static struct platform_device *gpio_sw_platform_dev;
++static struct platform_driver gpio_sw_driver;
++
++static const struct omap_gpio_switch *board_gpio_sw_table;
++static int board_gpio_sw_count;
++
++static const char *cover_str[2] = { "open", "closed" };
++static const char *connection_str[2] = { "disconnected", "connected" };
++static const char *activity_str[2] = { "inactive", "active" };
++
++/*
++ * GPIO switch state default debounce delay in ms
++ */
++#define OMAP_GPIO_SW_DEFAULT_DEBOUNCE 10
++
++static const char **get_sw_str(struct gpio_switch *sw)
++{
++ switch (sw->type) {
++ case OMAP_GPIO_SWITCH_TYPE_COVER:
++ return cover_str;
++ case OMAP_GPIO_SWITCH_TYPE_CONNECTION:
++ return connection_str;
++ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY:
++ return activity_str;
++ default:
++ BUG();
++ return NULL;
++ }
++}
++
++static const char *get_sw_type(struct gpio_switch *sw)
++{
++ switch (sw->type) {
++ case OMAP_GPIO_SWITCH_TYPE_COVER:
++ return "cover";
++ case OMAP_GPIO_SWITCH_TYPE_CONNECTION:
++ return "connection";
++ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY:
++ return "activity";
++ default:
++ BUG();
++ return NULL;
++ }
++}
++
++static void print_sw_state(struct gpio_switch *sw, int state)
++{
++ const char **str;
++
++ str = get_sw_str(sw);
++ if (str != NULL)
++ printk(KERN_INFO "%s (GPIO %d) is now %s\n", sw->name, sw->gpio, str[state]);
++}
++
++static int gpio_sw_get_state(struct gpio_switch *sw)
++{
++ int state;
++
++ state = gpio_get_value(sw->gpio);
++ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED)
++ state = !state;
++
++ return state;
++}
++
++static ssize_t gpio_sw_state_store(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf,
++ size_t count)
++{
++ struct gpio_switch *sw = dev_get_drvdata(dev);
++ const char **str;
++ char state[16];
++ int enable;
++
++ if (!(sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT))
++ return -EPERM;
++
++ if (sscanf(buf, "%15s", state) != 1)
++ return -EINVAL;
++
++ str = get_sw_str(sw);
++ if (strcmp(state, str[0]) == 0)
++ sw->state = enable = 0;
++ else if (strcmp(state, str[1]) == 0)
++ sw->state = enable = 1;
++ else
++ return -EINVAL;
++
++ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED)
++ enable = !enable;
++ gpio_set_value(sw->gpio, enable);
++
++ return count;
++}
++
++static ssize_t gpio_sw_state_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct gpio_switch *sw = dev_get_drvdata(dev);
++ const char **str;
++
++ str = get_sw_str(sw);
++ return sprintf(buf, "%s\n", str[sw->state]);
++}
++
++static DEVICE_ATTR(state, S_IRUGO | S_IWUSR, gpio_sw_state_show,
++ gpio_sw_state_store);
++
++static ssize_t gpio_sw_type_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct gpio_switch *sw = dev_get_drvdata(dev);
++
++ return sprintf(buf, "%s\n", get_sw_type(sw));
++}
++
++static DEVICE_ATTR(type, S_IRUGO, gpio_sw_type_show, NULL);
++
++static ssize_t gpio_sw_direction_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct gpio_switch *sw = dev_get_drvdata(dev);
++ int is_output;
++
++ is_output = sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT;
++ return sprintf(buf, "%s\n", is_output ? "output" : "input");
++}
++
++static DEVICE_ATTR(direction, S_IRUGO, gpio_sw_direction_show, NULL);
++
++
++static irqreturn_t gpio_sw_irq_handler(int irq, void *arg)
++{
++ struct gpio_switch *sw = arg;
++ unsigned long timeout;
++ int state;
++
++ if (!sw->both_edges) {
++ if (gpio_get_value(sw->gpio))
++ irq_set_irq_type(OMAP_GPIO_IRQ(sw->gpio), IRQ_TYPE_EDGE_FALLING);
++ else
++ irq_set_irq_type(OMAP_GPIO_IRQ(sw->gpio), IRQ_TYPE_EDGE_RISING);
++ }
++
++ state = gpio_sw_get_state(sw);
++ if (sw->state == state)
++ return IRQ_HANDLED;
++
++ if (state)
++ timeout = sw->debounce_rising;
++ else
++ timeout = sw->debounce_falling;
++ if (!timeout)
++ schedule_work(&sw->work);
++ else
++ mod_timer(&sw->timer, jiffies + msecs_to_jiffies(timeout));
++
++ return IRQ_HANDLED;
++}
++
++static void gpio_sw_timer(unsigned long arg)
++{
++ struct gpio_switch *sw = (struct gpio_switch *) arg;
++
++ schedule_work(&sw->work);
++}
++
++static void gpio_sw_handler(struct work_struct *work)
++{
++ struct gpio_switch *sw = container_of(work, struct gpio_switch, work);
++ int state;
++
++ state = gpio_sw_get_state(sw);
++ if (sw->state == state)
++ return;
++
++ sw->state = state;
++ if (sw->notify != NULL)
++ sw->notify(sw->notify_data, state);
++ sysfs_notify(&sw->pdev.dev.kobj, NULL, "state");
++ print_sw_state(sw, state);
++}
++
++static int __init can_do_both_edges(struct gpio_switch *sw)
++{
++ if (!cpu_class_is_omap1())
++ return 1;
++ if (OMAP_GPIO_IS_MPUIO(sw->gpio))
++ return 0;
++ else
++ return 1;
++}
++
++static void gpio_sw_release(struct device *dev)
++{
++}
++
++static int __init new_switch(struct gpio_switch *sw)
++{
++ int r, direction, trigger;
++
++ switch (sw->type) {
++ case OMAP_GPIO_SWITCH_TYPE_COVER:
++ case OMAP_GPIO_SWITCH_TYPE_CONNECTION:
++ case OMAP_GPIO_SWITCH_TYPE_ACTIVITY:
++ break;
++ default:
++ printk(KERN_ERR "invalid GPIO switch type: %d\n", sw->type);
++ return -EINVAL;
++ }
++
++ sw->pdev.name = sw->name;
++ sw->pdev.id = -1;
++
++ sw->pdev.dev.parent = &gpio_sw_platform_dev->dev;
++ sw->pdev.dev.driver = &gpio_sw_driver.driver;
++ sw->pdev.dev.release = gpio_sw_release;
++
++ r = platform_device_register(&sw->pdev);
++ if (r) {
++ printk(KERN_ERR "gpio-switch: platform device registration "
++ "failed for %s", sw->name);
++ return r;
++ }
++ dev_set_drvdata(&sw->pdev.dev, sw);
++
++ r = gpio_request(sw->gpio, "gpio-switch");
++ if (r < 0) {
++ platform_device_unregister(&sw->pdev);
++ return r;
++ }
++
++ /* input: 1, output: 0 */
++ direction = !(sw->flags & OMAP_GPIO_SWITCH_FLAG_OUTPUT);
++ if (direction)
++ gpio_direction_input(sw->gpio);
++ else
++ gpio_direction_output(sw->gpio, 0);
++
++ sw->state = gpio_sw_get_state(sw);
++
++ r = 0;
++ r |= device_create_file(&sw->pdev.dev, &dev_attr_state);
++ r |= device_create_file(&sw->pdev.dev, &dev_attr_type);
++ r |= device_create_file(&sw->pdev.dev, &dev_attr_direction);
++ if (r)
++ printk(KERN_ERR "gpio-switch: attribute file creation "
++ "failed for %s\n", sw->name);
++
++ if (!direction)
++ return 0;
++
++ if (can_do_both_edges(sw)) {
++ trigger = IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING;
++ sw->both_edges = 1;
++ } else {
++ if (gpio_get_value(sw->gpio))
++ trigger = IRQF_TRIGGER_FALLING;
++ else
++ trigger = IRQF_TRIGGER_RISING;
++ }
++ r = request_irq(OMAP_GPIO_IRQ(sw->gpio), gpio_sw_irq_handler,
++ IRQF_SHARED | trigger, sw->name, sw);
++ if (r < 0) {
++ printk(KERN_ERR "gpio-switch: request_irq() failed "
++ "for GPIO %d\n", sw->gpio);
++ platform_device_unregister(&sw->pdev);
++ gpio_free(sw->gpio);
++ return r;
++ }
++
++ INIT_WORK(&sw->work, gpio_sw_handler);
++ init_timer(&sw->timer);
++
++ sw->timer.function = gpio_sw_timer;
++ sw->timer.data = (unsigned long)sw;
++
++ list_add(&sw->node, &gpio_switches);
++
++ return 0;
++}
++
++static int __init add_atag_switches(void)
++{
++ const struct omap_gpio_switch_config *cfg;
++ struct gpio_switch *sw;
++ int i, r;
++
++ for (i = 0; ; i++) {
++ cfg = omap_get_nr_config(OMAP_TAG_GPIO_SWITCH,
++ struct omap_gpio_switch_config, i);
++ if (cfg == NULL)
++ break;
++ sw = kzalloc(sizeof(*sw), GFP_KERNEL);
++ if (sw == NULL) {
++ printk(KERN_ERR "gpio-switch: kmalloc failed\n");
++ return -ENOMEM;
++ }
++ strncpy(sw->name, cfg->name, sizeof(cfg->name));
++ sw->gpio = cfg->gpio;
++ sw->flags = cfg->flags;
++ sw->type = cfg->type;
++ sw->debounce_rising = OMAP_GPIO_SW_DEFAULT_DEBOUNCE;
++ sw->debounce_falling = OMAP_GPIO_SW_DEFAULT_DEBOUNCE;
++ if ((r = new_switch(sw)) < 0) {
++ kfree(sw);
++ return r;
++ }
++ }
++ return 0;
++}
++
++static struct gpio_switch * __init find_switch(int gpio, const char *name)
++{
++ struct gpio_switch *sw;
++
++ list_for_each_entry(sw, &gpio_switches, node) {
++ if ((gpio < 0 || sw->gpio != gpio) &&
++ (name == NULL || strcmp(sw->name, name) != 0))
++ continue;
++
++ if (gpio < 0 || name == NULL)
++ goto no_check;
++
++ if (strcmp(sw->name, name) != 0)
++ printk("gpio-switch: name mismatch for %d (%s, %s)\n",
++ gpio, name, sw->name);
++ else if (sw->gpio != gpio)
++ printk("gpio-switch: GPIO mismatch for %s (%d, %d)\n",
++ name, gpio, sw->gpio);
++no_check:
++ return sw;
++ }
++ return NULL;
++}
++
++static int __init add_board_switches(void)
++{
++ int i;
++
++ for (i = 0; i < board_gpio_sw_count; i++) {
++ const struct omap_gpio_switch *cfg;
++ struct gpio_switch *sw;
++ int r;
++
++ cfg = board_gpio_sw_table + i;
++ if (strlen(cfg->name) > sizeof(sw->name) - 1)
++ return -EINVAL;
++ /* Check whether we only update an existing switch
++ * or add a new switch. */
++ sw = find_switch(cfg->gpio, cfg->name);
++ if (sw != NULL) {
++ sw->debounce_rising = cfg->debounce_rising;
++ sw->debounce_falling = cfg->debounce_falling;
++ sw->notify = cfg->notify;
++ sw->notify_data = cfg->notify_data;
++ continue;
++ } else {
++ if (cfg->gpio < 0 || cfg->name == NULL) {
++ printk("gpio-switch: required switch not "
++ "found (%d, %s)\n", cfg->gpio,
++ cfg->name);
++ continue;
++ }
++ }
++ sw = kzalloc(sizeof(*sw), GFP_KERNEL);
++ if (sw == NULL) {
++ printk(KERN_ERR "gpio-switch: kmalloc failed\n");
++ return -ENOMEM;
++ }
++ strlcpy(sw->name, cfg->name, sizeof(sw->name));
++ sw->gpio = cfg->gpio;
++ sw->flags = cfg->flags;
++ sw->type = cfg->type;
++ sw->debounce_rising = cfg->debounce_rising;
++ sw->debounce_falling = cfg->debounce_falling;
++ sw->notify = cfg->notify;
++ sw->notify_data = cfg->notify_data;
++ if ((r = new_switch(sw)) < 0) {
++ kfree(sw);
++ return r;
++ }
++ }
++ return 0;
++}
++
++static void gpio_sw_cleanup(void)
++{
++ struct gpio_switch *sw = NULL, *old = NULL;
++
++ list_for_each_entry(sw, &gpio_switches, node) {
++ if (old != NULL)
++ kfree(old);
++ flush_scheduled_work();
++ del_timer_sync(&sw->timer);
++
++ free_irq(OMAP_GPIO_IRQ(sw->gpio), sw);
++
++ device_remove_file(&sw->pdev.dev, &dev_attr_state);
++ device_remove_file(&sw->pdev.dev, &dev_attr_type);
++ device_remove_file(&sw->pdev.dev, &dev_attr_direction);
++
++ platform_device_unregister(&sw->pdev);
++ gpio_free(sw->gpio);
++ old = sw;
++ }
++ kfree(old);
++}
++
++static void __init report_initial_state(void)
++{
++ struct gpio_switch *sw;
++
++ list_for_each_entry(sw, &gpio_switches, node) {
++ int state;
++
++ state = gpio_get_value(sw->gpio);
++ if (sw->flags & OMAP_GPIO_SWITCH_FLAG_INVERTED)
++ state = !state;
++ if (sw->notify != NULL)
++ sw->notify(sw->notify_data, state);
++ print_sw_state(sw, state);
++ }
++}
++
++static int gpio_sw_remove(struct platform_device *dev)
++{
++ return 0;
++}
++
++static struct platform_driver gpio_sw_driver = {
++ .remove = gpio_sw_remove,
++ .driver = {
++ .name = "gpio-switch",
++ },
++};
++
++void __init omap_register_gpio_switches(const struct omap_gpio_switch *tbl,
++ int count)
++{
++ BUG_ON(board_gpio_sw_table != NULL);
++
++ board_gpio_sw_table = tbl;
++ board_gpio_sw_count = count;
++}
++
++static int __init gpio_sw_init(void)
++{
++ int r;
++
++ printk(KERN_INFO "OMAP GPIO switch handler initializing\n");
++
++ r = platform_driver_register(&gpio_sw_driver);
++ if (r)
++ return r;
++
++ gpio_sw_platform_dev = platform_device_register_simple("gpio-switch",
++ -1, NULL, 0);
++ if (IS_ERR(gpio_sw_platform_dev)) {
++ r = PTR_ERR(gpio_sw_platform_dev);
++ goto err1;
++ }
++
++ r = add_atag_switches();
++ if (r < 0)
++ goto err2;
++
++ r = add_board_switches();
++ if (r < 0)
++ goto err2;
++
++ report_initial_state();
++
++ return 0;
++err2:
++ gpio_sw_cleanup();
++ platform_device_unregister(gpio_sw_platform_dev);
++err1:
++ platform_driver_unregister(&gpio_sw_driver);
++ return r;
++}
++
++static void __exit gpio_sw_exit(void)
++{
++ gpio_sw_cleanup();
++ platform_device_unregister(gpio_sw_platform_dev);
++ platform_driver_unregister(&gpio_sw_driver);
++}
++
++#ifndef MODULE
++late_initcall(gpio_sw_init);
++#else
++module_init(gpio_sw_init);
++#endif
++module_exit(gpio_sw_exit);
++
++MODULE_AUTHOR("Juha Yrjölä <juha.yrjola@nokia.com>, Paul Mundt <paul.mundt@nokia.com");
++MODULE_DESCRIPTION("GPIO switch driver");
++MODULE_LICENSE("GPL");
+--- a/arch/arm/plat-omap/include/plat/board.h
++++ b/arch/arm/plat-omap/include/plat/board.h
+@@ -151,6 +151,14 @@ struct omap_board_config_kernel {
+ const void *data;
+ };
+
++struct omap_gpio_switch_config {
++ char name[12];
++ u16 gpio;
++ int flags:4;
++ int type:4;
++ int key_code:24; /* Linux key code */
++};
++
+ extern const void *__init __omap_get_config(u16 tag, size_t len, int nr);
+
+ #define omap_get_config(tag, type) \
--- /dev/null
+--- /dev/null
++++ b/drivers/cbus/cbus.c
+@@ -0,0 +1,335 @@
++/*
++ * drivers/cbus/cbus.c
++ *
++ * Support functions for CBUS serial protocol
++ *
++ * Copyright (C) 2004-2010 Nokia Corporation
++ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
++ * David Weinehall <david.weinehall@nokia.com>, and
++ * Mikko Ylinen <mikko.k.ylinen@nokia.com>
++ *
++ * Several updates and cleanups by Felipe Balbi <felipe.balbi@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/device.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/export.h>
++#include <linux/module.h>
++#include <linux/slab.h>
++#include <linux/spinlock.h>
++#include <linux/gpio.h>
++#include <linux/platform_device.h>
++#include <linux/platform_data/cbus.h>
++
++#include "cbus.h"
++
++#define CBUS_XFER_READ 1
++#define CBUS_XFER_WRITE 0
++
++struct cbus_host {
++ /* host lock */
++ spinlock_t lock;
++
++ struct device *dev;
++
++ int clk_gpio;
++ int dat_gpio;
++ int sel_gpio;
++};
++
++/**
++ * cbus_send_bit - sends one bit over the bus
++ * @host: the host we're using
++ * @bit: one bit of information to send
++ * @input: whether to set data pin as input after sending
++ */
++static int cbus_send_bit(struct cbus_host *host, unsigned bit,
++ unsigned input)
++{
++ int ret = 0;
++
++ gpio_set_value(host->dat_gpio, bit ? 1 : 0);
++ gpio_set_value(host->clk_gpio, 1);
++
++ /* The data bit is read on the rising edge of CLK */
++ if (input)
++ ret = gpio_direction_input(host->dat_gpio);
++
++ gpio_set_value(host->clk_gpio, 0);
++
++ return ret;
++}
++
++/**
++ * cbus_send_data - sends @len amount of data over the bus
++ * @host: the host we're using
++ * @data: the data to send
++ * @len: size of the transfer
++ * @input: whether to set data pin as input after sending
++ */
++static int cbus_send_data(struct cbus_host *host, unsigned data, unsigned len,
++ unsigned input)
++{
++ int ret = 0;
++ int i;
++
++ for (i = len; i > 0; i--) {
++ ret = cbus_send_bit(host, data & (1 << (i - 1)),
++ input && (i == 1));
++ if (ret < 0)
++ goto out;
++ }
++
++out:
++ return ret;
++}
++
++/**
++ * cbus_receive_bit - receives one bit from the bus
++ * @host: the host we're using
++ */
++static int cbus_receive_bit(struct cbus_host *host)
++{
++ int ret;
++
++ gpio_set_value(host->clk_gpio, 1);
++ ret = gpio_get_value(host->dat_gpio);
++ if (ret < 0)
++ goto out;
++ gpio_set_value(host->clk_gpio, 0);
++
++out:
++ return ret;
++}
++
++/**
++ * cbus_receive_data - receives @len data from the bus
++ * @host: the host we're using
++ * @len: the length of data to receive
++ */
++static int cbus_receive_data(struct cbus_host *host, unsigned len)
++{
++ int ret = 0;
++ int i;
++
++ for (i = 16; i > 0; i--) {
++ int bit = cbus_receive_bit(host);
++
++ if (bit < 0)
++ goto out;
++
++ if (bit)
++ ret |= 1 << (i - 1);
++ }
++
++out:
++ return ret;
++}
++
++/**
++ * cbus_transfer - transfers data over the bus
++ * @host: the host we're using
++ * @rw: read/write flag
++ * @dev: device address
++ * @reg: register address
++ * @data: if @rw == 0 data to send otherwise 0
++ */
++static int cbus_transfer(struct cbus_host *host, unsigned rw, unsigned dev,
++ unsigned reg, unsigned data)
++{
++ unsigned long flags;
++ int input = 0;
++ int ret = 0;
++
++ /* We don't want interrupts disturbing our transfer */
++ spin_lock_irqsave(&host->lock, flags);
++
++ /* Reset state and start of transfer, SEL stays down during transfer */
++ gpio_set_value(host->sel_gpio, 0);
++
++ /* Set the DAT pin to output */
++ gpio_direction_output(host->dat_gpio, 1);
++
++ /* Send the device address */
++ ret = cbus_send_data(host, dev, 3, 0);
++ if (ret < 0) {
++ dev_dbg(host->dev, "failed sending device addr\n");
++ goto out;
++ }
++
++ /* Send the rw flag */
++ ret = cbus_send_bit(host, rw, 0);
++ if (ret < 0) {
++ dev_dbg(host->dev, "failed sending read/write flag\n");
++ goto out;
++ }
++
++ /* Send the register address */
++ if (rw)
++ input = true;
++
++ ret = cbus_send_data(host, reg, 5, input);
++ if (ret < 0) {
++ dev_dbg(host->dev, "failed sending register addr\n");
++ goto out;
++ }
++
++ if (!rw) {
++ ret = cbus_send_data(host, data, 16, 0);
++ if (ret < 0) {
++ dev_dbg(host->dev, "failed sending data\n");
++ goto out;
++ }
++ } else {
++ gpio_set_value(host->clk_gpio, 1);
++
++ ret = cbus_receive_data(host, 16);
++ if (ret < 0) {
++ dev_dbg(host->dev, "failed receiving data\n");
++ goto out;
++ }
++ }
++
++ /* Indicate end of transfer, SEL goes up until next transfer */
++ gpio_set_value(host->sel_gpio, 1);
++ gpio_set_value(host->clk_gpio, 1);
++ gpio_set_value(host->clk_gpio, 0);
++
++out:
++ spin_unlock_irqrestore(&host->lock, flags);
++
++ return ret;
++}
++
++/**
++ * cbus_read_reg - reads a given register from the device
++ * @child: the child device
++ * @dev: device address
++ * @reg: register address
++ */
++int cbus_read_reg(struct device *child, unsigned dev, unsigned reg)
++{
++ struct cbus_host *host = dev_get_drvdata(child->parent);
++
++ return cbus_transfer(host, CBUS_XFER_READ, dev, reg, 0);
++}
++EXPORT_SYMBOL(cbus_read_reg);
++
++/**
++ * cbus_write_reg - writes to a given register of the device
++ * @child: the child device
++ * @dev: device address
++ * @reg: register address
++ * @val: data to be written to @reg
++ */
++int cbus_write_reg(struct device *child, unsigned dev, unsigned reg,
++ unsigned val)
++{
++ struct cbus_host *host = dev_get_drvdata(child->parent);
++
++ return cbus_transfer(host, CBUS_XFER_WRITE, dev, reg, val);
++}
++EXPORT_SYMBOL(cbus_write_reg);
++
++static int __init cbus_bus_probe(struct platform_device *pdev)
++{
++ struct cbus_host *chost;
++ struct cbus_host_platform_data *pdata = pdev->dev.platform_data;
++ int ret;
++
++ chost = kzalloc(sizeof(*chost), GFP_KERNEL);
++ if (chost == NULL)
++ return -ENOMEM;
++
++ spin_lock_init(&chost->lock);
++
++ chost->clk_gpio = pdata->clk_gpio;
++ chost->dat_gpio = pdata->dat_gpio;
++ chost->sel_gpio = pdata->sel_gpio;
++ chost->dev = &pdev->dev;
++
++ ret = gpio_request(chost->clk_gpio, "CBUS clk");
++ if (ret < 0)
++ goto exit1;
++
++ ret = gpio_request(chost->dat_gpio, "CBUS data");
++ if (ret < 0)
++ goto exit2;
++
++ ret = gpio_request(chost->sel_gpio, "CBUS sel");
++ if (ret < 0)
++ goto exit3;
++
++ gpio_direction_output(chost->clk_gpio, 0);
++ gpio_direction_input(chost->dat_gpio);
++ gpio_direction_output(chost->sel_gpio, 1);
++
++ gpio_set_value(chost->clk_gpio, 1);
++ gpio_set_value(chost->clk_gpio, 0);
++
++ platform_set_drvdata(pdev, chost);
++
++ return 0;
++exit3:
++ gpio_free(chost->dat_gpio);
++exit2:
++ gpio_free(chost->clk_gpio);
++exit1:
++ kfree(chost);
++
++ return ret;
++}
++
++static void __exit cbus_bus_remove(struct platform_device *pdev)
++{
++ struct cbus_host *chost = platform_get_drvdata(pdev);
++
++ gpio_free(chost->sel_gpio);
++ gpio_free(chost->dat_gpio);
++ gpio_free(chost->clk_gpio);
++
++ kfree(chost);
++}
++
++static struct platform_driver cbus_driver = {
++ .remove = __exit_p(cbus_bus_remove),
++ .driver = {
++ .name = "cbus",
++ },
++};
++
++static int __init cbus_bus_init(void)
++{
++ return platform_driver_probe(&cbus_driver, cbus_bus_probe);
++}
++subsys_initcall(cbus_bus_init);
++
++static void __exit cbus_bus_exit(void)
++{
++ platform_driver_unregister(&cbus_driver);
++}
++module_exit(cbus_bus_exit);
++
++MODULE_DESCRIPTION("CBUS serial protocol");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Juha Yrjölä");
++MODULE_AUTHOR("David Weinehall");
++MODULE_AUTHOR("Mikko Ylinen");
++MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
++
+--- /dev/null
++++ b/drivers/cbus/cbus.h
+@@ -0,0 +1,30 @@
++/*
++ * drivers/cbus/cbus.h
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
++ * David Weinehall <david.weinehall@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#ifndef __DRIVERS_CBUS_CBUS_H
++#define __DRIVERS_CBUS_CBUS_H
++
++extern int cbus_read_reg(struct device *, unsigned dev, unsigned reg);
++extern int cbus_write_reg(struct device *, unsigned dev, unsigned reg,
++ unsigned val);
++
++#endif /* __DRIVERS_CBUS_CBUS_H */
+--- /dev/null
++++ b/drivers/cbus/Kconfig
+@@ -0,0 +1,86 @@
++#
++# CBUS device configuration
++#
++
++menu "CBUS support"
++
++config CBUS
++ bool "CBUS support on OMAP"
++ ---help---
++ CBUS is a proprietary serial protocol by Nokia. It is mainly
++ used for accessing Energy Management auxiliary chips.
++
++ If you want CBUS support, you should say Y here.
++
++config CBUS_TAHVO
++ depends on CBUS
++ bool "Support for Tahvo"
++ ---help---
++ Tahvo is a mixed signal ASIC with some system features
++
++ If you want Tahvo support, you should say Y here.
++
++if CBUS_TAHVO
++
++config CBUS_TAHVO_USB
++ depends on USB
++ depends on ARCH_OMAP
++ select USB_OTG_UTILS
++ tristate "Support for Tahvo USB transceiver"
++ ---help---
++ If you want Tahvo support for USB transceiver, say Y or M here.
++
++config CBUS_TAHVO_USB_HOST_BY_DEFAULT
++ depends on CBUS_TAHVO_USB && USB_OTG
++ boolean "Device in USB host mode by default"
++ ---help---
++ Say Y here, if you want the device to enter USB host mode
++ by default on bootup.
++
++endif # CBUS_TAHVO
++
++config CBUS_RETU
++ depends on CBUS
++ bool "Support for Retu"
++ ---help---
++ Retu is a mixed signal ASIC with some system features
++
++ If you want Retu support, you should say Y here.
++
++if CBUS_RETU
++
++config CBUS_RETU_POWERBUTTON
++ depends on INPUT
++ bool "Support for Retu power button"
++ ---help---
++ The power button on Nokia 770 is connected to the Retu ASIC.
++
++ If you want support for the Retu power button, you should say Y here.
++
++config CBUS_RETU_RTC
++ depends on RTC_CLASS
++ depends on ARCH_OMAP
++ tristate "Support for Retu pseudo-RTC"
++ ---help---
++ Say Y here if you want support for the device that alleges to be an
++ RTC in Retu. This will expose a sysfs interface for it.
++
++config CBUS_RETU_WDT
++ depends on SYSFS && WATCHDOG
++ depends on ARCH_OMAP
++ tristate "Support for Retu watchdog timer"
++ ---help---
++ Say Y here if you want support for the watchdog in Retu. This will
++ expose a sysfs interface to grok it.
++
++config CBUS_RETU_HEADSET
++ depends on SYSFS
++ tristate "Support for headset detection with Retu/Vilma"
++ ---help---
++ Say Y here if you want support detecting a headset that's connected
++ to Retu/Vilma. Detection state and events are exposed through
++ sysfs.
++
++endif # CBUS_RETU
++
++endmenu
+--- /dev/null
++++ b/drivers/cbus/Makefile
+@@ -0,0 +1,13 @@
++#
++# Makefile for CBUS.
++#
++
++obj-$(CONFIG_CBUS) += cbus.o
++obj-$(CONFIG_CBUS_TAHVO) += tahvo.o
++obj-$(CONFIG_CBUS_RETU) += retu.o
++obj-$(CONFIG_CBUS_TAHVO_USB) += tahvo-usb.o
++
++obj-$(CONFIG_CBUS_RETU_POWERBUTTON) += retu-pwrbutton.o
++obj-$(CONFIG_CBUS_RETU_RTC) += retu-rtc.o
++obj-$(CONFIG_CBUS_RETU_WDT) += retu-wdt.o
++obj-$(CONFIG_CBUS_RETU_HEADSET) += retu-headset.o
+--- /dev/null
++++ b/drivers/cbus/retu.c
+@@ -0,0 +1,549 @@
++/**
++ * drivers/cbus/retu.c
++ *
++ * Support functions for Retu ASIC
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
++ * David Weinehall <david.weinehall@nokia.com>, and
++ * Mikko Ylinen <mikko.k.ylinen@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++
++#include <linux/slab.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/device.h>
++#include <linux/mutex.h>
++#include <linux/irq.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/platform_data/cbus.h>
++
++#include <asm/bitops.h>
++
++#include "cbus.h"
++#include "retu.h"
++
++struct retu {
++ /* Device lock */
++ struct mutex mutex;
++ struct device *dev;
++
++ int devid;
++
++ int irq_base;
++ int irq_end;
++
++ int irq;
++
++ int ack;
++ bool ack_pending;
++
++ int mask;
++ bool mask_pending;
++
++ bool is_vilma;
++};
++
++static struct retu *the_retu;
++
++/**
++ * __retu_read_reg - Read a value from a register in Retu
++ * @retu: pointer to retu structure
++ * @reg: the register address to read from
++ */
++static int __retu_read_reg(struct retu *retu, unsigned reg)
++{
++ return cbus_read_reg(retu->dev, retu->devid, reg);
++}
++
++/**
++ * __retu_write_reg - Writes a value to a register in Retu
++ * @retu: pointer to retu structure
++ * @reg: the register address to write to
++ * @val: the value to write to the register
++ */
++static void __retu_write_reg(struct retu *retu, unsigned reg, u16 val)
++{
++ cbus_write_reg(retu->dev, retu->devid, reg, val);
++}
++
++/**
++ * retu_read_reg - Read a value from a register in Retu
++ * @child: device pointer for the calling child
++ * @reg: the register to read from
++ *
++ * This function returns the contents of the specified register
++ */
++int retu_read_reg(struct device *child, unsigned reg)
++{
++ struct retu *retu = dev_get_drvdata(child->parent);
++
++ return __retu_read_reg(retu, reg);
++}
++EXPORT_SYMBOL_GPL(retu_read_reg);
++
++/**
++ * retu_write_reg - Write a value to a register in Retu
++ * @child: the pointer to our calling child
++ * @reg: the register to write to
++ * @val: the value to write to the register
++ *
++ * This function writes a value to the specified register
++ */
++void retu_write_reg(struct device *child, unsigned reg, u16 val)
++{
++ struct retu *retu = dev_get_drvdata(child->parent);
++
++ mutex_lock(&retu->mutex);
++ __retu_write_reg(retu, reg, val);
++ mutex_unlock(&retu->mutex);
++}
++EXPORT_SYMBOL_GPL(retu_write_reg);
++
++/**
++ * retu_set_clear_reg_bits - helper function to read/set/clear bits
++ * @child: device pointer to calling child
++ * @reg: the register address
++ * @set: mask for setting bits
++ * @clear: mask for clearing bits
++ */
++void retu_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
++ u16 clear)
++{
++ struct retu *retu = dev_get_drvdata(child->parent);
++ u16 w;
++
++ mutex_lock(&retu->mutex);
++ w = __retu_read_reg(retu, reg);
++ w &= ~clear;
++ w |= set;
++ __retu_write_reg(retu, reg, w);
++ mutex_unlock(&retu->mutex);
++}
++EXPORT_SYMBOL_GPL(retu_set_clear_reg_bits);
++
++#define ADC_MAX_CHAN_NUMBER 13
++
++/**
++ * retu_read_adc - Reads AD conversion result
++ * @child: device pointer to calling child
++ * @channel: the ADC channel to read from
++ */
++int retu_read_adc(struct device *child, int channel)
++{
++ struct retu *retu = dev_get_drvdata(child->parent);
++ int res;
++
++ if (!retu)
++ return -ENODEV;
++
++ if (channel < 0 || channel > ADC_MAX_CHAN_NUMBER)
++ return -EINVAL;
++
++ mutex_lock(&retu->mutex);
++
++ if ((channel == 8) && retu->is_vilma) {
++ int scr = __retu_read_reg(retu, RETU_REG_ADCSCR);
++ int ch = (__retu_read_reg(retu, RETU_REG_ADCR) >> 10) & 0xf;
++ if (((scr & 0xff) != 0) && (ch != 8))
++ __retu_write_reg(retu, RETU_REG_ADCSCR, (scr & ~0xff));
++ }
++
++ /* Select the channel and read result */
++ __retu_write_reg(retu, RETU_REG_ADCR, channel << 10);
++ res = __retu_read_reg(retu, RETU_REG_ADCR) & 0x3ff;
++
++ if (retu->is_vilma)
++ __retu_write_reg(retu, RETU_REG_ADCR, (1 << 13));
++
++ /* Unlock retu */
++ mutex_unlock(&retu->mutex);
++
++ return res;
++}
++EXPORT_SYMBOL_GPL(retu_read_adc);
++
++static irqreturn_t retu_irq_handler(int irq, void *_retu)
++{
++ struct retu *retu = _retu;
++
++ u16 idr;
++ u16 imr;
++
++ mutex_lock(&retu->mutex);
++ idr = __retu_read_reg(retu, RETU_REG_IDR);
++ imr = __retu_read_reg(retu, RETU_REG_IMR);
++ mutex_unlock(&retu->mutex);
++
++ idr &= ~imr;
++ if (!idr) {
++ dev_vdbg(retu->dev, "No IRQ, spurious?\n");
++ return IRQ_NONE;
++ }
++
++ while (idr) {
++ unsigned long pending = __ffs(idr);
++ unsigned int irq;
++
++ idr &= ~BIT(pending);
++ irq = pending + retu->irq_base;
++ handle_nested_irq(irq);
++ }
++
++ return IRQ_HANDLED;
++}
++
++/* -------------------------------------------------------------------------- */
++
++static void retu_irq_mask(struct irq_data *data)
++{
++ struct retu *retu = irq_data_get_irq_chip_data(data);
++ int irq = data->irq;
++
++ retu->mask |= (1 << (irq - retu->irq_base));
++ retu->mask_pending = true;
++}
++
++static void retu_irq_unmask(struct irq_data *data)
++{
++ struct retu *retu = irq_data_get_irq_chip_data(data);
++ int irq = data->irq;
++
++ retu->mask &= ~(1 << (irq - retu->irq_base));
++ retu->mask_pending = true;
++
++}
++
++static void retu_irq_ack(struct irq_data *data)
++{
++ struct retu *retu = irq_data_get_irq_chip_data(data);
++ int irq = data->irq;
++
++ retu->ack |= (1 << (irq - retu->irq_base));
++ retu->ack_pending = true;
++}
++
++static void retu_bus_lock(struct irq_data *data)
++{
++ struct retu *retu = irq_data_get_irq_chip_data(data);
++
++ mutex_lock(&retu->mutex);
++}
++
++static void retu_bus_sync_unlock(struct irq_data *data)
++{
++ struct retu *retu = irq_data_get_irq_chip_data(data);
++
++ if (retu->mask_pending) {
++ __retu_write_reg(retu, RETU_REG_IMR, retu->mask);
++ retu->mask_pending = false;
++ }
++
++ if (retu->ack_pending) {
++ __retu_write_reg(retu, RETU_REG_IDR, retu->ack);
++ retu->ack_pending = false;
++ }
++
++ mutex_unlock(&retu->mutex);
++}
++
++static struct irq_chip retu_irq_chip = {
++ .name = "retu",
++ .irq_bus_lock = retu_bus_lock,
++ .irq_bus_sync_unlock = retu_bus_sync_unlock,
++ .irq_mask = retu_irq_mask,
++ .irq_unmask = retu_irq_unmask,
++ .irq_ack = retu_irq_ack,
++};
++
++static inline void retu_irq_setup(int irq)
++{
++#ifdef CONFIG_ARM
++ set_irq_flags(irq, IRQF_VALID);
++#else
++ irq_set_noprobe(irq);
++#endif
++}
++
++static void retu_irq_init(struct retu *retu)
++{
++ int base = retu->irq_base;
++ int end = retu->irq_end;
++ int irq;
++
++ for (irq = base; irq < end; irq++) {
++ irq_set_chip_data(irq, retu);
++ irq_set_chip_and_handler(irq, &retu_irq_chip,
++ handle_simple_irq);
++ irq_set_nested_thread(irq, 1);
++ retu_irq_setup(irq);
++ }
++}
++
++static void retu_irq_exit(struct retu *retu)
++{
++ int base = retu->irq_base;
++ int end = retu->irq_end;
++ int irq;
++
++ for (irq = base; irq < end; irq++) {
++#ifdef CONFIG_ARM
++ set_irq_flags(irq, 0);
++#endif
++ irq_set_chip_and_handler(irq, NULL, NULL);
++ irq_set_chip_data(irq, NULL);
++ }
++}
++
++/* -------------------------------------------------------------------------- */
++
++/**
++ * retu_power_off - Shut down power to system
++ *
++ * This function puts the system in power off state
++ */
++static void retu_power_off(void)
++{
++ struct retu *retu = the_retu;
++ unsigned reg;
++
++ reg = __retu_read_reg(retu, RETU_REG_CC1);
++
++ /* Ignore power button state */
++ __retu_write_reg(retu, RETU_REG_CC1, reg | 2);
++ /* Expire watchdog immediately */
++ __retu_write_reg(retu, RETU_REG_WATCHDOG, 0);
++ /* Wait for poweroff*/
++ for (;;);
++}
++
++static struct resource generic_resources[] = {
++ {
++ .start = -EINVAL, /* fixed later */
++ .flags = IORESOURCE_IRQ,
++ },
++ {
++ .start = -EINVAL, /* fixed later */
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++/**
++ * retu_allocate_child - Allocates one Retu child
++ * @name: name of new child
++ * @parent: parent device for this child
++ */
++static struct device *retu_allocate_child(char *name, struct device *parent,
++ int irq_base, int irq1, int irq2, int num)
++{
++ struct platform_device *pdev;
++ int status;
++
++ pdev = platform_device_alloc(name, -1);
++ if (!pdev) {
++ dev_dbg(parent, "can't allocate %s\n", name);
++ goto err;
++ }
++
++ pdev->dev.parent = parent;
++
++ if (num) {
++ generic_resources[0].start = irq_base + irq1;
++ generic_resources[1].start = irq_base + irq2;
++
++ status = platform_device_add_resources(pdev,
++ generic_resources, num);
++ if (status < 0) {
++ dev_dbg(parent, "can't add resources to %s\n", name);
++ goto err;
++ }
++ }
++
++ status = platform_device_add(pdev);
++ if (status < 0) {
++ dev_dbg(parent, "can't add %s\n", name);
++ goto err;
++ }
++
++ return &pdev->dev;
++
++err:
++ platform_device_put(pdev);
++
++ return NULL;
++}
++
++/**
++ * retu_allocate_children - Allocates Retu's children
++ */
++static int retu_allocate_children(struct device *parent, int irq_base)
++{
++ struct device *child;
++
++ child = retu_allocate_child("retu-pwrbutton", parent, irq_base,
++ RETU_INT_PWR, -1, 1);
++ if (!child)
++ return -ENOMEM;
++
++ child = retu_allocate_child("retu-headset", parent, irq_base,
++ RETU_INT_HOOK, -1, 1);
++ if (!child)
++ return -ENOMEM;
++
++ child = retu_allocate_child("retu-rtc", parent, irq_base,
++ RETU_INT_RTCS, RETU_INT_RTCA, 2);
++ if (!child)
++ return -ENOMEM;
++
++ child = retu_allocate_child("retu-wdt", parent, -1, -1, -1, 0);
++ if (!child)
++ return -ENOMEM;
++
++ return 0;
++}
++
++/**
++ * retu_probe - Probe for Retu ASIC
++ * @dev: the Retu device
++ *
++ * Probe for the Retu ASIC and allocate memory
++ * for its device-struct if found
++ */
++static int __devinit retu_probe(struct platform_device *pdev)
++{
++ struct retu *retu;
++ struct cbus_retu_platform_data *pdata = pdev->dev.platform_data;
++
++ int ret = -ENOMEM;
++ int rev;
++
++ retu = kzalloc(sizeof(*retu), GFP_KERNEL);
++ if (!retu) {
++ dev_err(&pdev->dev, "not enough memory\n");
++ goto err0;
++ }
++
++ platform_set_drvdata(pdev, retu);
++
++ ret = irq_alloc_descs(-1, 0, MAX_RETU_IRQ_HANDLERS, 0);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "failed to allocate IRQ descs\n");
++ goto err1;
++ }
++
++ retu->irq = platform_get_irq(pdev, 0);
++ retu->irq_base = ret;
++ retu->irq_end = ret + MAX_RETU_IRQ_HANDLERS;
++ retu->devid = pdata->devid;
++ retu->dev = &pdev->dev;
++ the_retu = retu;
++
++ mutex_init(&retu->mutex);
++
++ retu_irq_init(retu);
++
++ rev = __retu_read_reg(retu, RETU_REG_ASICR) & 0xff;
++ if (rev & (1 << 7))
++ retu->is_vilma = true;
++
++ dev_info(&pdev->dev, "%s v%d.%d found\n",
++ retu->is_vilma ? "Vilma" : "Retu",
++ (rev >> 4) & 0x07, rev & 0x0f);
++
++ /* Mask all RETU interrupts */
++ __retu_write_reg(retu, RETU_REG_IMR, 0xffff);
++
++ ret = request_threaded_irq(retu->irq, NULL, retu_irq_handler,
++ IRQF_ONESHOT, "retu", retu);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "Unable to register IRQ handler\n");
++ goto err2;
++ }
++
++ irq_set_irq_wake(retu->irq, 1);
++
++ /* Register power off function */
++ pm_power_off = retu_power_off;
++
++ ret = retu_allocate_children(&pdev->dev, retu->irq_base);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "Unable to allocate Retu children\n");
++ goto err3;
++ }
++
++ return 0;
++
++err3:
++ pm_power_off = NULL;
++ free_irq(retu->irq, retu);
++
++err2:
++ retu_irq_exit(retu);
++ irq_free_descs(retu->irq_base, MAX_RETU_IRQ_HANDLERS);
++
++err1:
++ kfree(retu);
++ the_retu = NULL;
++
++err0:
++ return ret;
++}
++
++static int __devexit retu_remove(struct platform_device *pdev)
++{
++ struct retu *retu = platform_get_drvdata(pdev);
++
++ pm_power_off = NULL;
++ the_retu = NULL;
++
++ free_irq(retu->irq, retu);
++ retu_irq_exit(retu);
++ irq_free_descs(retu->irq_base, MAX_RETU_IRQ_HANDLERS);
++ kfree(retu);
++
++ return 0;
++}
++
++static struct platform_driver retu_driver = {
++ .probe = retu_probe,
++ .remove = __devexit_p(retu_remove),
++ .driver = {
++ .name = "retu",
++ },
++};
++
++static int __init retu_init(void)
++{
++ return platform_driver_register(&retu_driver);
++}
++subsys_initcall(retu_init);
++
++static void __exit retu_exit(void)
++{
++ platform_driver_unregister(&retu_driver);
++}
++module_exit(retu_exit);
++
++MODULE_DESCRIPTION("Retu ASIC control");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Juha Yrjölä");
++MODULE_AUTHOR("David Weinehall");
++MODULE_AUTHOR("Mikko Ylinen");
+--- /dev/null
++++ b/drivers/cbus/retu.h
+@@ -0,0 +1,85 @@
++/**
++ * drivers/cbus/retu.h
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
++ * David Weinehall <david.weinehall@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#ifndef __DRIVERS_CBUS_RETU_H
++#define __DRIVERS_CBUS_RETU_H
++
++#include <linux/types.h>
++
++/* Registers */
++#define RETU_REG_ASICR 0x00 /* ASIC ID & revision */
++#define RETU_REG_IDR 0x01 /* Interrupt ID */
++#define RETU_REG_IMR 0x02 /* Interrupt mask */
++#define RETU_REG_RTCDSR 0x03 /* RTC seconds register */
++#define RETU_REG_RTCHMR 0x04 /* RTC hours and minutes register */
++#define RETU_REG_RTCHMAR 0x05 /* RTC hours and minutes alarm and time set register */
++#define RETU_REG_RTCCALR 0x06 /* RTC calibration register */
++#define RETU_REG_ADCR 0x08 /* ADC result */
++#define RETU_REG_ADCSCR 0x09 /* ADC sample ctrl */
++#define RETU_REG_CC1 0x0d /* Common control register 1 */
++#define RETU_REG_CC2 0x0e /* Common control register 2 */
++#define RETU_REG_CTRL_CLR 0x0f /* Regulator clear register */
++#define RETU_REG_CTRL_SET 0x10 /* Regulator set register */
++#define RETU_REG_STATUS 0x16 /* Status register */
++#define RETU_REG_STATUS_BATAVAIL 0x0100 /* Battery available */
++#define RETU_REG_STATUS_CHGPLUG 0x1000 /* Charger is plugged in */
++#define RETU_REG_WATCHDOG 0x17 /* Watchdog register */
++#define RETU_REG_AUDTXR 0x18 /* Audio Codec Tx register */
++#define RETU_REG_MAX 0x1f
++
++/* Interrupt sources */
++#define RETU_INT_PWR 0
++#define RETU_INT_CHAR 1
++#define RETU_INT_RTCS 2
++#define RETU_INT_RTCM 3
++#define RETU_INT_RTCD 4
++#define RETU_INT_RTCA 5
++#define RETU_INT_HOOK 6
++#define RETU_INT_HEAD 7
++#define RETU_INT_ADCS 8
++
++#define MAX_RETU_IRQ_HANDLERS 16
++
++/* ADC channels */
++#define RETU_ADC_GND 0x00 /* Ground */
++#define RETU_ADC_BSI 0x01 /* Battery Size Indicator */
++#define RETU_ADC_BATTEMP 0x02 /* Battery temperature */
++#define RETU_ADC_CHGVOLT 0x03 /* Charger voltage */
++#define RETU_ADC_HEADSET 0x04 /* Headset detection */
++#define RETU_ADC_HOOKDET 0x05 /* Hook detection */
++#define RETU_ADC_RFGP 0x06 /* RF GP */
++#define RETU_ADC_WBTX 0x07 /* Wideband Tx detection */
++#define RETU_ADC_BATTVOLT 0x08 /* Battery voltage measurement */
++#define RETU_ADC_GND2 0x09 /* Ground */
++#define RETU_ADC_LIGHTSENS 0x0A /* Light sensor */
++#define RETU_ADC_LIGHTTEMP 0x0B /* Light sensor temperature */
++#define RETU_ADC_BKUPVOLT 0x0C /* Backup battery voltage */
++#define RETU_ADC_TEMP 0x0D /* RETU temperature */
++
++
++int retu_read_reg(struct device *child, unsigned reg);
++void retu_write_reg(struct device *child, unsigned reg, u16 val);
++void retu_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
++ u16 clear);
++int retu_read_adc(struct device *child, int channel);
++
++#endif /* __DRIVERS_CBUS_RETU_H */
+--- /dev/null
++++ b/drivers/cbus/retu-headset.c
+@@ -0,0 +1,359 @@
++/**
++ * Retu/Vilma headset detection
++ *
++ * Copyright (C) 2006 Nokia Corporation
++ *
++ * Written by Juha Yrjölä
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/irq.h>
++#include <linux/interrupt.h>
++#include <linux/slab.h>
++#include <linux/delay.h>
++#include <linux/input.h>
++#include <linux/platform_device.h>
++
++#include "retu.h"
++
++#define RETU_ADC_CHANNEL_HOOKDET 0x05
++
++#define RETU_HEADSET_KEY KEY_PHONE
++
++struct retu_headset {
++ spinlock_t lock;
++ struct mutex mutex;
++ struct device *dev;
++ struct input_dev *idev;
++ unsigned bias_enabled;
++ unsigned detection_enabled;
++ unsigned pressed;
++ struct timer_list enable_timer;
++ struct timer_list detect_timer;
++ int irq;
++};
++
++static void retu_headset_set_bias(struct retu_headset *hs, int enable)
++{
++ if (enable) {
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_AUDTXR,
++ (1 << 0) | (1 << 1), 0);
++ msleep(2);
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_AUDTXR,
++ 1 << 3, 0);
++ } else {
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_AUDTXR, 0,
++ (1 << 0) | (1 << 1) | (1 << 3));
++ }
++}
++
++static void retu_headset_enable(struct retu_headset *hs)
++{
++ mutex_lock(&hs->mutex);
++ if (!hs->bias_enabled) {
++ hs->bias_enabled = 1;
++ retu_headset_set_bias(hs, 1);
++ }
++ mutex_unlock(&hs->mutex);
++}
++
++static void retu_headset_disable(struct retu_headset *hs)
++{
++ mutex_lock(&hs->mutex);
++ if (hs->bias_enabled) {
++ hs->bias_enabled = 0;
++ retu_headset_set_bias(hs, 0);
++ }
++ mutex_unlock(&hs->mutex);
++}
++
++static void retu_headset_det_enable(struct retu_headset *hs)
++{
++ mutex_lock(&hs->mutex);
++ if (!hs->detection_enabled) {
++ hs->detection_enabled = 1;
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1,
++ (1 << 10) | (1 << 8), 0);
++ }
++ mutex_unlock(&hs->mutex);
++}
++
++static void retu_headset_det_disable(struct retu_headset *hs)
++{
++ unsigned long flags;
++
++ mutex_lock(&hs->mutex);
++ if (hs->detection_enabled) {
++ hs->detection_enabled = 0;
++ del_timer_sync(&hs->enable_timer);
++ del_timer_sync(&hs->detect_timer);
++ spin_lock_irqsave(&hs->lock, flags);
++ if (hs->pressed)
++ input_report_key(hs->idev, RETU_HEADSET_KEY, 0);
++ spin_unlock_irqrestore(&hs->lock, flags);
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1, 0,
++ (1 << 10) | (1 << 8));
++ }
++ mutex_unlock(&hs->mutex);
++}
++
++static ssize_t retu_headset_hookdet_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ int val;
++
++ val = retu_read_adc(dev, RETU_ADC_CHANNEL_HOOKDET);
++ return sprintf(buf, "%d\n", val);
++}
++
++static DEVICE_ATTR(hookdet, S_IRUGO, retu_headset_hookdet_show, NULL);
++
++static ssize_t retu_headset_enable_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct retu_headset *hs = dev_get_drvdata(dev);
++
++ return sprintf(buf, "%u\n", hs->bias_enabled);
++}
++
++static ssize_t retu_headset_enable_store(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct retu_headset *hs = dev_get_drvdata(dev);
++ int enable;
++
++ if (sscanf(buf, "%u", &enable) != 1)
++ return -EINVAL;
++ if (enable)
++ retu_headset_enable(hs);
++ else
++ retu_headset_disable(hs);
++ return count;
++}
++
++static DEVICE_ATTR(enable, S_IRUGO | S_IWUSR | S_IWGRP,
++ retu_headset_enable_show, retu_headset_enable_store);
++
++static ssize_t retu_headset_enable_det_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct retu_headset *hs = dev_get_drvdata(dev);
++
++ return sprintf(buf, "%u\n", hs->detection_enabled);
++}
++
++static ssize_t retu_headset_enable_det_store(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct retu_headset *hs = dev_get_drvdata(dev);
++ int enable;
++
++ if (sscanf(buf, "%u", &enable) != 1)
++ return -EINVAL;
++ if (enable)
++ retu_headset_det_enable(hs);
++ else
++ retu_headset_det_disable(hs);
++ return count;
++}
++
++static DEVICE_ATTR(enable_det, S_IRUGO | S_IWUSR | S_IWGRP,
++ retu_headset_enable_det_show,
++ retu_headset_enable_det_store);
++
++static irqreturn_t retu_headset_hook_interrupt(int irq, void *_hs)
++{
++ struct retu_headset *hs = _hs;
++ unsigned long flags;
++
++ spin_lock_irqsave(&hs->lock, flags);
++ if (!hs->pressed) {
++ /* Headset button was just pressed down. */
++ hs->pressed = 1;
++ input_report_key(hs->idev, RETU_HEADSET_KEY, 1);
++ }
++ spin_unlock_irqrestore(&hs->lock, flags);
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1, 0,
++ (1 << 10) | (1 << 8));
++ mod_timer(&hs->enable_timer, jiffies + msecs_to_jiffies(50));
++
++ return IRQ_HANDLED;
++}
++
++static void retu_headset_enable_timer(unsigned long arg)
++{
++ struct retu_headset *hs = (struct retu_headset *) arg;
++
++ retu_set_clear_reg_bits(hs->dev, RETU_REG_CC1,
++ (1 << 10) | (1 << 8), 0);
++ mod_timer(&hs->detect_timer, jiffies + msecs_to_jiffies(350));
++}
++
++static void retu_headset_detect_timer(unsigned long arg)
++{
++ struct retu_headset *hs = (struct retu_headset *) arg;
++ unsigned long flags;
++
++ spin_lock_irqsave(&hs->lock, flags);
++ if (hs->pressed) {
++ hs->pressed = 0;
++ input_report_key(hs->idev, RETU_HEADSET_KEY, 0);
++ }
++ spin_unlock_irqrestore(&hs->lock, flags);
++}
++
++static int __init retu_headset_probe(struct platform_device *pdev)
++{
++ struct retu_headset *hs;
++ int irq;
++ int r;
++
++ hs = kzalloc(sizeof(*hs), GFP_KERNEL);
++ if (hs == NULL)
++ return -ENOMEM;
++
++ hs->dev = &pdev->dev;
++
++ hs->idev = input_allocate_device();
++ if (hs->idev == NULL) {
++ r = -ENOMEM;
++ goto err1;
++ }
++ hs->idev->name = "retu-headset";
++ hs->idev->dev.parent = &pdev->dev;
++ set_bit(EV_KEY, hs->idev->evbit);
++ set_bit(RETU_HEADSET_KEY, hs->idev->keybit);
++ r = input_register_device(hs->idev);
++ if (r < 0)
++ goto err2;
++
++ r = device_create_file(&pdev->dev, &dev_attr_hookdet);
++ if (r < 0)
++ goto err3;
++ r = device_create_file(&pdev->dev, &dev_attr_enable);
++ if (r < 0)
++ goto err4;
++ r = device_create_file(&pdev->dev, &dev_attr_enable_det);
++ if (r < 0)
++ goto err5;
++ platform_set_drvdata(pdev, hs);
++
++ spin_lock_init(&hs->lock);
++ mutex_init(&hs->mutex);
++ setup_timer(&hs->enable_timer, retu_headset_enable_timer,
++ (unsigned long) hs);
++ setup_timer(&hs->detect_timer, retu_headset_detect_timer,
++ (unsigned long) hs);
++
++ irq = platform_get_irq(pdev, 0);
++ hs->irq = irq;
++
++ r = request_threaded_irq(irq, NULL, retu_headset_hook_interrupt, 0,
++ "hookdet", hs);
++ if (r != 0) {
++ dev_err(&pdev->dev, "hookdet IRQ not available\n");
++ goto err6;
++ }
++
++ return 0;
++err6:
++ device_remove_file(&pdev->dev, &dev_attr_enable_det);
++err5:
++ device_remove_file(&pdev->dev, &dev_attr_enable);
++err4:
++ device_remove_file(&pdev->dev, &dev_attr_hookdet);
++err3:
++ input_unregister_device(hs->idev);
++err2:
++ input_free_device(hs->idev);
++err1:
++ kfree(hs);
++ return r;
++}
++
++static int retu_headset_remove(struct platform_device *pdev)
++{
++ struct retu_headset *hs = platform_get_drvdata(pdev);
++
++ device_remove_file(&pdev->dev, &dev_attr_hookdet);
++ device_remove_file(&pdev->dev, &dev_attr_enable);
++ device_remove_file(&pdev->dev, &dev_attr_enable_det);
++ retu_headset_disable(hs);
++ retu_headset_det_disable(hs);
++ free_irq(hs->irq, hs);
++ input_unregister_device(hs->idev);
++ input_free_device(hs->idev);
++
++ return 0;
++}
++
++static int retu_headset_suspend(struct platform_device *pdev,
++ pm_message_t mesg)
++{
++ struct retu_headset *hs = platform_get_drvdata(pdev);
++
++ mutex_lock(&hs->mutex);
++ if (hs->bias_enabled)
++ retu_headset_set_bias(hs, 0);
++ mutex_unlock(&hs->mutex);
++
++ return 0;
++}
++
++static int retu_headset_resume(struct platform_device *pdev)
++{
++ struct retu_headset *hs = platform_get_drvdata(pdev);
++
++ mutex_lock(&hs->mutex);
++ if (hs->bias_enabled)
++ retu_headset_set_bias(hs, 1);
++ mutex_unlock(&hs->mutex);
++
++ return 0;
++}
++
++static struct platform_driver retu_headset_driver = {
++ .remove = retu_headset_remove,
++ .suspend = retu_headset_suspend,
++ .resume = retu_headset_resume,
++ .driver = {
++ .name = "retu-headset",
++ },
++};
++
++static int __init retu_headset_init(void)
++{
++ return platform_driver_probe(&retu_headset_driver, retu_headset_probe);
++}
++
++static void __exit retu_headset_exit(void)
++{
++ platform_driver_unregister(&retu_headset_driver);
++}
++
++module_init(retu_headset_init);
++module_exit(retu_headset_exit);
++
++MODULE_DESCRIPTION("Retu/Vilma headset detection");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Juha Yrjölä");
+--- /dev/null
++++ b/drivers/cbus/retu-pwrbutton.c
+@@ -0,0 +1,165 @@
++/**
++ * drivers/cbus/retu-pwrbutton.c
++ *
++ * Driver for sending retu power button event to input-layer
++ *
++ * Copyright (C) 2004-2010 Nokia Corporation
++ *
++ * Written by
++ * Ari Saastamoinen <ari.saastamoinen@elektrobit.com>
++ * Juha Yrjola <juha.yrjola@solidboot.com>
++ *
++ * Contact: Felipe Balbi <felipe.balbi@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/input.h>
++#include <linux/jiffies.h>
++#include <linux/bitops.h>
++#include <linux/irq.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++
++#include "retu.h"
++
++#define RETU_STATUS_PWRONX (1 << 5)
++
++#define PWRBTN_DELAY 20
++#define PWRBTN_UP 0
++#define PWRBTN_PRESSED 1
++
++struct retu_pwrbutton {
++ struct input_dev *idev;
++ struct device *dev;
++
++ int state;
++ int irq;
++};
++
++static irqreturn_t retubutton_irq(int irq, void *_pwr)
++{
++ struct retu_pwrbutton *pwr = _pwr;
++ int state;
++
++ if (retu_read_reg(pwr->dev, RETU_REG_STATUS) & RETU_STATUS_PWRONX)
++ state = PWRBTN_UP;
++ else
++ state = PWRBTN_PRESSED;
++
++ if (pwr->state != state) {
++ input_report_key(pwr->idev, KEY_POWER, state);
++ input_sync(pwr->idev);
++ pwr->state = state;
++ }
++
++ return IRQ_HANDLED;
++}
++
++static int __init retubutton_probe(struct platform_device *pdev)
++{
++ struct retu_pwrbutton *pwr;
++ int ret = 0;
++
++ pwr = kzalloc(sizeof(*pwr), GFP_KERNEL);
++ if (!pwr) {
++ dev_err(&pdev->dev, "not enough memory\n");
++ ret = -ENOMEM;
++ goto err0;
++ }
++
++ pwr->dev = &pdev->dev;
++ pwr->irq = platform_get_irq(pdev, 0);
++ platform_set_drvdata(pdev, pwr);
++
++ ret = request_threaded_irq(pwr->irq, NULL, retubutton_irq, 0,
++ "retu-pwrbutton", pwr);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "Cannot allocate irq\n");
++ goto err1;
++ }
++
++ pwr->idev = input_allocate_device();
++ if (!pwr->idev) {
++ dev_err(&pdev->dev, "can't allocate input device\n");
++ ret = -ENOMEM;
++ goto err2;
++ }
++
++ pwr->idev->evbit[0] = BIT_MASK(EV_KEY);
++ pwr->idev->keybit[BIT_WORD(KEY_POWER)] = BIT_MASK(KEY_POWER);
++ pwr->idev->name = "retu-pwrbutton";
++
++ ret = input_register_device(pwr->idev);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "failed to register input device\n");
++ goto err3;
++ }
++
++ return 0;
++
++err3:
++ input_free_device(pwr->idev);
++
++err2:
++ free_irq(pwr->irq, pwr);
++
++err1:
++ kfree(pwr);
++
++err0:
++ return ret;
++}
++
++static int __exit retubutton_remove(struct platform_device *pdev)
++{
++ struct retu_pwrbutton *pwr = platform_get_drvdata(pdev);
++
++ free_irq(pwr->irq, pwr);
++ input_unregister_device(pwr->idev);
++ input_free_device(pwr->idev);
++ kfree(pwr);
++
++ return 0;
++}
++
++static struct platform_driver retu_pwrbutton_driver = {
++ .remove = __exit_p(retubutton_remove),
++ .driver = {
++ .name = "retu-pwrbutton",
++ },
++};
++
++static int __init retubutton_init(void)
++{
++ return platform_driver_probe(&retu_pwrbutton_driver, retubutton_probe);
++}
++module_init(retubutton_init);
++
++static void __exit retubutton_exit(void)
++{
++ platform_driver_unregister(&retu_pwrbutton_driver);
++}
++module_exit(retubutton_exit);
++
++MODULE_DESCRIPTION("Retu Power Button");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Ari Saastamoinen");
++MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
++
+--- /dev/null
++++ b/drivers/cbus/retu-rtc.c
+@@ -0,0 +1,287 @@
++/**
++ * drivers/cbus/retu-rtc.c
++ *
++ * Support for Retu RTC
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Paul Mundt <paul.mundt@nokia.com> and
++ * Igor Stoppa <igor.stoppa@nokia.com>
++ *
++ * The Retu RTC is essentially a partial read-only RTC that gives us Retu's
++ * idea of what time actually is. It's left as a userspace excercise to map
++ * this back to time in the real world and ensure that calibration settings
++ * are sane to compensate for any horrible drift (on account of not being able
++ * to set the clock to anything).
++ *
++ * Days are semi-writeable. Namely, Retu will only track 255 days for us
++ * consecutively, after which the counter is explicitly stuck at 255 until
++ * someone comes along and clears it with a write. In the event that no one
++ * comes along and clears it, we no longer have any idea what day it is.
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/device.h>
++#include <linux/init.h>
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/platform_device.h>
++#include <linux/mutex.h>
++#include <linux/rtc.h>
++
++#include "cbus.h"
++#include "retu.h"
++
++struct retu_rtc {
++ /* device lock */
++ struct mutex mutex;
++ struct device *dev;
++ struct rtc_device *rtc;
++
++ u16 alarm_expired;
++ int irq_rtcs;
++ int irq_rtca;
++};
++
++static void retu_rtc_do_reset(struct retu_rtc *rtc)
++{
++ u16 ccr1;
++
++ ccr1 = retu_read_reg(rtc->dev, RETU_REG_CC1);
++ /* RTC in reset */
++ retu_write_reg(rtc->dev, RETU_REG_CC1, ccr1 | 0x0001);
++ /* RTC in normal operating mode */
++ retu_write_reg(rtc->dev, RETU_REG_CC1, ccr1 & ~0x0001);
++
++ /* Disable alarm and RTC WD */
++ retu_write_reg(rtc->dev, RETU_REG_RTCHMAR, 0x7f3f);
++ /* Set Calibration register to default value */
++ retu_write_reg(rtc->dev, RETU_REG_RTCCALR, 0x00c0);
++
++ rtc->alarm_expired = 0;
++}
++
++static irqreturn_t retu_rtc_interrupt(int irq, void *_rtc)
++{
++ struct retu_rtc *rtc = _rtc;
++
++ mutex_lock(&rtc->mutex);
++ rtc->alarm_expired = 1;
++ retu_write_reg(rtc->dev, RETU_REG_RTCHMAR, (24 << 8) | 60);
++ mutex_unlock(&rtc->mutex);
++
++ return IRQ_HANDLED;
++}
++
++static int retu_rtc_init_irq(struct retu_rtc *rtc)
++{
++ int irq;
++ int ret;
++
++ irq = platform_get_irq(to_platform_device(rtc->dev), 0);
++ rtc->irq_rtcs = irq;
++
++ irq = platform_get_irq(to_platform_device(rtc->dev), 1);
++ rtc->irq_rtca = irq;
++
++ ret = request_threaded_irq(rtc->irq_rtcs, NULL, retu_rtc_interrupt,
++ 0, "RTCS", rtc);
++ if (ret != 0)
++ return ret;
++
++ ret = request_threaded_irq(rtc->irq_rtca, NULL, retu_rtc_interrupt,
++ 0, "RTCA", rtc);
++ if (ret != 0) {
++ free_irq(rtc->irq_rtcs, rtc);
++ return ret;
++ }
++
++ return 0;
++}
++
++static int retu_rtc_set_alarm(struct device *dev, struct rtc_wkalrm *alm)
++{
++ struct retu_rtc *rtc = dev_get_drvdata(dev);
++ u16 chmar;
++
++ mutex_lock(&rtc->mutex);
++
++ chmar = ((alm->time.tm_hour & 0x1f) << 8) | (alm->time.tm_min & 0x3f);
++ retu_write_reg(rtc->dev, RETU_REG_RTCHMAR, chmar);
++
++ mutex_unlock(&rtc->mutex);
++
++ return 0;
++}
++
++static int retu_rtc_read_alarm(struct device *dev, struct rtc_wkalrm *alm)
++{
++ struct retu_rtc *rtc = dev_get_drvdata(dev);
++ u16 chmar;
++
++ mutex_lock(&rtc->mutex);
++
++ chmar = retu_read_reg(rtc->dev, RETU_REG_RTCHMAR);
++
++ alm->time.tm_hour = (chmar >> 8) & 0x1f;
++ alm->time.tm_min = chmar & 0x3f;
++ alm->enabled = !!rtc->alarm_expired;
++
++ mutex_unlock(&rtc->mutex);
++
++ return 0;
++}
++
++static int retu_rtc_set_time(struct device *dev, struct rtc_time *tm)
++{
++ struct retu_rtc *rtc = dev_get_drvdata(dev);
++ u16 dsr;
++ u16 hmr;
++
++ dsr = ((tm->tm_mday & 0xff) << 8) | (tm->tm_hour & 0xff);
++ hmr = ((tm->tm_min & 0xff) << 8) | (tm->tm_sec & 0xff);
++
++ mutex_lock(&rtc->mutex);
++
++ retu_write_reg(rtc->dev, RETU_REG_RTCDSR, dsr);
++ retu_write_reg(rtc->dev, RETU_REG_RTCHMR, hmr);
++
++ mutex_unlock(&rtc->mutex);
++
++ return 0;
++}
++
++static int retu_rtc_read_time(struct device *dev, struct rtc_time *tm)
++{
++ struct retu_rtc *rtc = dev_get_drvdata(dev);
++ u16 dsr;
++ u16 hmr;
++
++ /*
++ * DSR holds days and hours
++ * HMR hols minutes and seconds
++ *
++ * both are 16 bit registers with 8-bit for each field.
++ */
++
++ mutex_lock(&rtc->mutex);
++
++ dsr = retu_read_reg(rtc->dev, RETU_REG_RTCDSR);
++ hmr = retu_read_reg(rtc->dev, RETU_REG_RTCHMR);
++
++ tm->tm_sec = hmr & 0xff;
++ tm->tm_min = hmr >> 8;
++ tm->tm_hour = dsr & 0xff;
++ tm->tm_mday = dsr >> 8;
++
++ mutex_unlock(&rtc->mutex);
++
++ return 0;
++}
++
++static struct rtc_class_ops retu_rtc_ops = {
++ .read_time = retu_rtc_read_time,
++ .set_time = retu_rtc_set_time,
++ .read_alarm = retu_rtc_read_alarm,
++ .set_alarm = retu_rtc_set_alarm,
++};
++
++static int __init retu_rtc_probe(struct platform_device *pdev)
++{
++ struct retu_rtc *rtc;
++ int r;
++
++ rtc = kzalloc(sizeof(*rtc), GFP_KERNEL);
++ if (!rtc) {
++ dev_err(&pdev->dev, "not enough memory\n");
++ r = -ENOMEM;
++ goto err0;
++ }
++
++ rtc->dev = &pdev->dev;
++ platform_set_drvdata(pdev, rtc);
++ mutex_init(&rtc->mutex);
++
++ rtc->alarm_expired = retu_read_reg(rtc->dev, RETU_REG_IDR) &
++ (0x1 << RETU_INT_RTCA);
++
++ r = retu_rtc_init_irq(rtc);
++ if (r < 0) {
++ dev_err(&pdev->dev, "failed to request retu irq\n");
++ goto err1;
++ }
++
++ /* If the calibration register is zero, we've probably lost power */
++ if (!(retu_read_reg(rtc->dev, RETU_REG_RTCCALR) & 0x00ff))
++ retu_rtc_do_reset(rtc);
++
++ rtc->rtc = rtc_device_register(pdev->name, &pdev->dev, &
++ retu_rtc_ops, THIS_MODULE);
++ if (IS_ERR(rtc->rtc)) {
++ dev_err(&pdev->dev, "can't register RTC device\n");
++ goto err2;
++ }
++
++ return 0;
++
++err2:
++ free_irq(rtc->irq_rtcs, rtc);
++ free_irq(rtc->irq_rtca, rtc);
++
++err1:
++ kfree(rtc);
++
++err0:
++ return r;
++}
++
++static int __devexit retu_rtc_remove(struct platform_device *pdev)
++{
++ struct retu_rtc *rtc = platform_get_drvdata(pdev);
++
++ free_irq(rtc->irq_rtcs, rtc);
++ free_irq(rtc->irq_rtca, rtc);
++ rtc_device_unregister(rtc->rtc);
++ kfree(rtc);
++
++ return 0;
++}
++
++static struct platform_driver retu_rtc_driver = {
++ .remove = __exit_p(retu_rtc_remove),
++ .driver = {
++ .name = "retu-rtc",
++ },
++};
++
++static int __init retu_rtc_init(void)
++{
++ return platform_driver_probe(&retu_rtc_driver, retu_rtc_probe);
++}
++module_init(retu_rtc_init);
++
++static void __exit retu_rtc_exit(void)
++{
++ platform_driver_unregister(&retu_rtc_driver);
++}
++module_exit(retu_rtc_exit);
++
++MODULE_DESCRIPTION("Retu RTC");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Paul Mundt");
++MODULE_AUTHOR("Igor Stoppa");
++MODULE_AUTHOR("Felipe Balbi <felipe.balbi@nokia.com>");
++
+--- /dev/null
++++ b/drivers/cbus/retu-wdt.c
+@@ -0,0 +1,272 @@
++/**
++ * drivers/cbus/retu-wdt.c
++ *
++ * Driver for Retu watchdog
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Amit Kucheria <amit.kucheria@nokia.com>
++ *
++ * Cleanups by Michael Buesch <mb@bu3sch.de> (C) 2011
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/kernel.h>
++#include <linux/slab.h>
++#include <linux/module.h>
++#include <linux/device.h>
++#include <linux/init.h>
++#include <linux/fs.h>
++#include <linux/io.h>
++#include <linux/platform_device.h>
++
++#include <linux/completion.h>
++#include <linux/errno.h>
++#include <linux/moduleparam.h>
++#include <linux/miscdevice.h>
++#include <linux/watchdog.h>
++
++#include <asm/uaccess.h>
++
++#include <plat/prcm.h>
++
++#include "cbus.h"
++#include "retu.h"
++
++/* Watchdog timeout in seconds */
++#define RETU_WDT_MIN_TIMER 0
++#define RETU_WDT_DEFAULT_TIMER 32
++#define RETU_WDT_MAX_TIMER 63
++
++struct retu_wdt_dev {
++ struct device *dev;
++ unsigned int period_val; /* Current period of watchdog */
++ unsigned long users;
++ struct miscdevice miscdev;
++ struct delayed_work ping_work;
++ struct mutex mutex;
++};
++
++
++static inline void _retu_modify_counter(struct retu_wdt_dev *wdev,
++ unsigned int new)
++{
++ retu_write_reg(wdev->dev, RETU_REG_WATCHDOG, (u16)new);
++}
++
++static int retu_modify_counter(struct retu_wdt_dev *wdev, unsigned int new)
++{
++ if (new < RETU_WDT_MIN_TIMER || new > RETU_WDT_MAX_TIMER)
++ return -EINVAL;
++
++ mutex_lock(&wdev->mutex);
++ wdev->period_val = new;
++ _retu_modify_counter(wdev, wdev->period_val);
++ mutex_unlock(&wdev->mutex);
++
++ return 0;
++}
++
++/*
++ * Since retu watchdog cannot be disabled in hardware, we must kick it
++ * with a timer until userspace watchdog software takes over. Do this
++ * unless /dev/watchdog is open or CONFIG_WATCHDOG_NOWAYOUT is set.
++ */
++static void retu_wdt_ping_enable(struct retu_wdt_dev *wdev)
++{
++ _retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
++ schedule_delayed_work(&wdev->ping_work,
++ round_jiffies_relative(RETU_WDT_DEFAULT_TIMER * HZ));
++}
++
++static void retu_wdt_ping_disable(struct retu_wdt_dev *wdev)
++{
++ _retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
++ cancel_delayed_work_sync(&wdev->ping_work);
++}
++
++static void retu_wdt_ping_work(struct work_struct *work)
++{
++ struct retu_wdt_dev *wdev = container_of(to_delayed_work(work),
++ struct retu_wdt_dev, ping_work);
++ retu_wdt_ping_enable(wdev);
++}
++
++static int retu_wdt_open(struct inode *inode, struct file *file)
++{
++ struct miscdevice *mdev = file->private_data;
++ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
++
++ if (test_and_set_bit(0, &wdev->users))
++ return -EBUSY;
++
++ retu_wdt_ping_disable(wdev);
++
++ return nonseekable_open(inode, file);
++}
++
++static int retu_wdt_release(struct inode *inode, struct file *file)
++{
++ struct miscdevice *mdev = file->private_data;
++ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
++
++#ifndef CONFIG_WATCHDOG_NOWAYOUT
++ retu_wdt_ping_enable(wdev);
++#endif
++ clear_bit(0, &wdev->users);
++
++ return 0;
++}
++
++static ssize_t retu_wdt_write(struct file *file, const char __user *data,
++ size_t len, loff_t *ppos)
++{
++ struct miscdevice *mdev = file->private_data;
++ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
++
++ if (len)
++ retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
++
++ return len;
++}
++
++static long retu_wdt_ioctl(struct file *file, unsigned int cmd,
++ unsigned long arg)
++{
++ struct miscdevice *mdev = file->private_data;
++ struct retu_wdt_dev *wdev = container_of(mdev, struct retu_wdt_dev, miscdev);
++ int new_margin;
++
++ static const struct watchdog_info ident = {
++ .identity = "Retu Watchdog",
++ .options = WDIOF_SETTIMEOUT,
++ .firmware_version = 0,
++ };
++
++ switch (cmd) {
++ default:
++ return -ENOTTY;
++ case WDIOC_GETSUPPORT:
++ return copy_to_user((struct watchdog_info __user *)arg, &ident,
++ sizeof(ident));
++ case WDIOC_GETSTATUS:
++ return put_user(0, (int __user *)arg);
++ case WDIOC_GETBOOTSTATUS:
++ if (cpu_is_omap16xx())
++ return put_user(omap_readw(ARM_SYSST),
++ (int __user *)arg);
++ if (cpu_is_omap24xx())
++ return put_user(omap_prcm_get_reset_sources(),
++ (int __user *)arg);
++ case WDIOC_KEEPALIVE:
++ retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
++ break;
++ case WDIOC_SETTIMEOUT:
++ if (get_user(new_margin, (int __user *)arg))
++ return -EFAULT;
++ retu_modify_counter(wdev, new_margin);
++ /* Fall through */
++ case WDIOC_GETTIMEOUT:
++ return put_user(wdev->period_val, (int __user *)arg);
++ }
++
++ return 0;
++}
++
++static const struct file_operations retu_wdt_fops = {
++ .owner = THIS_MODULE,
++ .write = retu_wdt_write,
++ .unlocked_ioctl = retu_wdt_ioctl,
++ .open = retu_wdt_open,
++ .release = retu_wdt_release,
++};
++
++static int __init retu_wdt_probe(struct platform_device *pdev)
++{
++ struct retu_wdt_dev *wdev;
++ int ret;
++
++ wdev = kzalloc(sizeof(struct retu_wdt_dev), GFP_KERNEL);
++ if (!wdev)
++ return -ENOMEM;
++
++ wdev->dev = &pdev->dev;
++ wdev->period_val = RETU_WDT_DEFAULT_TIMER;
++ mutex_init(&wdev->mutex);
++
++ platform_set_drvdata(pdev, wdev);
++
++ wdev->miscdev.parent = &pdev->dev;
++ wdev->miscdev.minor = WATCHDOG_MINOR;
++ wdev->miscdev.name = "watchdog";
++ wdev->miscdev.fops = &retu_wdt_fops;
++
++ ret = misc_register(&wdev->miscdev);
++ if (ret)
++ goto err_free_wdev;
++
++ INIT_DELAYED_WORK(&wdev->ping_work, retu_wdt_ping_work);
++
++ /* Kick the watchdog for kernel booting to finish.
++ * If nowayout is not set, we start the ping work. */
++#ifdef CONFIG_WATCHDOG_NOWAYOUT
++ retu_modify_counter(wdev, RETU_WDT_MAX_TIMER);
++#else
++ retu_wdt_ping_enable(wdev);
++#endif
++
++ return 0;
++
++err_free_wdev:
++ kfree(wdev);
++
++ return ret;
++}
++
++static int __devexit retu_wdt_remove(struct platform_device *pdev)
++{
++ struct retu_wdt_dev *wdev;
++
++ wdev = platform_get_drvdata(pdev);
++ misc_deregister(&wdev->miscdev);
++ cancel_delayed_work_sync(&wdev->ping_work);
++ kfree(wdev);
++
++ return 0;
++}
++
++static struct platform_driver retu_wdt_driver = {
++ .remove = __exit_p(retu_wdt_remove),
++ .driver = {
++ .name = "retu-wdt",
++ },
++};
++
++static int __init retu_wdt_init(void)
++{
++ return platform_driver_probe(&retu_wdt_driver, retu_wdt_probe);
++}
++
++static void __exit retu_wdt_exit(void)
++{
++ platform_driver_unregister(&retu_wdt_driver);
++}
++
++module_init(retu_wdt_init);
++module_exit(retu_wdt_exit);
++
++MODULE_DESCRIPTION("Retu WatchDog");
++MODULE_AUTHOR("Amit Kucheria");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/cbus/tahvo.c
+@@ -0,0 +1,423 @@
++/**
++ * drivers/cbus/tahvo.c
++ *
++ * Support functions for Tahvo ASIC
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
++ * David Weinehall <david.weinehall@nokia.com>, and
++ * Mikko Ylinen <mikko.k.ylinen@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/module.h>
++#include <linux/init.h>
++
++#include <linux/slab.h>
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/device.h>
++#include <linux/irq.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/platform_data/cbus.h>
++#include <linux/mutex.h>
++
++#include "cbus.h"
++#include "tahvo.h"
++
++struct tahvo {
++ /* device lock */
++ struct mutex mutex;
++ struct device *dev;
++
++ int irq_base;
++ int irq_end;
++ int irq;
++
++ int ack;
++ int mask;
++
++ unsigned int mask_pending:1;
++ unsigned int ack_pending:1;
++ unsigned int is_betty:1;
++};
++
++/**
++ * __tahvo_read_reg - Reads a value from a register in Tahvo
++ * @tahvo: pointer to tahvo structure
++ * @reg: the register address to read from
++ */
++static int __tahvo_read_reg(struct tahvo *tahvo, unsigned reg)
++{
++ return cbus_read_reg(tahvo->dev, CBUS_TAHVO_DEVICE_ID, reg);
++}
++
++/**
++ * __tahvo_write_reg - Writes a value to a register in Tahvo
++ * @tahvo: pointer to tahvo structure
++ * @reg: register address to write to
++ * @val: the value to be written to @reg
++ */
++static void __tahvo_write_reg(struct tahvo *tahvo, unsigned reg, u16 val)
++{
++ cbus_write_reg(tahvo->dev, CBUS_TAHVO_DEVICE_ID, reg, val);
++}
++
++/**
++ * tahvo_read_reg - Read a value from a register in Tahvo
++ * @child: device pointer from the calling child
++ * @reg: the register to read from
++ *
++ * This function returns the contents of the specified register
++ */
++int tahvo_read_reg(struct device *child, unsigned reg)
++{
++ struct tahvo *tahvo = dev_get_drvdata(child->parent);
++
++ return __tahvo_read_reg(tahvo, reg);
++}
++EXPORT_SYMBOL(tahvo_read_reg);
++
++/**
++ * tahvo_write_reg - Write a value to a register in Tahvo
++ * @child: device pointer from the calling child
++ * @reg: the register to write to
++ * @val : the value to write to the register
++ *
++ * This function writes a value to the specified register
++ */
++void tahvo_write_reg(struct device *child, unsigned reg, u16 val)
++{
++ struct tahvo *tahvo = dev_get_drvdata(child->parent);
++
++ __tahvo_write_reg(tahvo, reg, val);
++}
++EXPORT_SYMBOL(tahvo_write_reg);
++
++/**
++ * tahvo_set_clear_reg_bits - set and clear register bits atomically
++ * @child: device pointer from the calling child
++ * @reg: the register to write to
++ * @bits: the bits to set
++ *
++ * This function sets and clears the specified Tahvo register bits atomically
++ */
++void tahvo_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
++ u16 clear)
++{
++ struct tahvo *tahvo = dev_get_drvdata(child->parent);
++ u16 w;
++
++ mutex_lock(&tahvo->mutex);
++ w = __tahvo_read_reg(tahvo, reg);
++ w &= ~clear;
++ w |= set;
++ __tahvo_write_reg(tahvo, reg, w);
++ mutex_unlock(&tahvo->mutex);
++}
++
++static irqreturn_t tahvo_irq_handler(int irq, void *_tahvo)
++{
++ struct tahvo *tahvo = _tahvo;
++ u16 id;
++ u16 im;
++
++ id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
++ im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
++ id &= ~im;
++
++ if (!id) {
++ dev_vdbg(tahvo->dev, "No IRQ, spurious ?\n");
++ return IRQ_NONE;
++ }
++
++ while (id) {
++ unsigned long pending = __ffs(id);
++ unsigned int irq;
++
++ id &= ~BIT(pending);
++ irq = pending + tahvo->irq_base;
++ handle_nested_irq(irq);
++ }
++
++ return IRQ_HANDLED;
++}
++
++/* -------------------------------------------------------------------------- */
++
++static void tahvo_irq_bus_lock(struct irq_data *data)
++{
++ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
++
++ mutex_lock(&tahvo->mutex);
++}
++
++static void tahvo_irq_bus_sync_unlock(struct irq_data *data)
++{
++ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
++
++ if (tahvo->mask_pending) {
++ __tahvo_write_reg(tahvo, TAHVO_REG_IMR, tahvo->mask);
++ tahvo->mask_pending = false;
++ }
++
++ if (tahvo->ack_pending) {
++ __tahvo_write_reg(tahvo, TAHVO_REG_IDR, tahvo->ack);
++ tahvo->ack_pending = false;
++ }
++
++ mutex_unlock(&tahvo->mutex);
++}
++
++static void tahvo_irq_mask(struct irq_data *data)
++{
++ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
++ int irq = data->irq;
++
++ tahvo->mask |= (1 << (irq - tahvo->irq_base));
++ tahvo->mask_pending = true;
++}
++
++static void tahvo_irq_unmask(struct irq_data *data)
++{
++ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
++ int irq = data->irq;
++
++ tahvo->mask &= ~(1 << (irq - tahvo->irq_base));
++ tahvo->mask_pending = true;
++}
++
++static void tahvo_irq_ack(struct irq_data *data)
++{
++ struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
++ int irq = data->irq;
++
++ tahvo->ack |= (1 << (irq - tahvo->irq_base));
++ tahvo->ack_pending = true;
++}
++
++static struct irq_chip tahvo_irq_chip = {
++ .name = "tahvo",
++ .irq_bus_lock = tahvo_irq_bus_lock,
++ .irq_bus_sync_unlock = tahvo_irq_bus_sync_unlock,
++ .irq_mask = tahvo_irq_mask,
++ .irq_unmask = tahvo_irq_unmask,
++ .irq_ack = tahvo_irq_ack,
++};
++
++static inline void tahvo_irq_setup(int irq)
++{
++#ifdef CONFIG_ARM
++ set_irq_flags(irq, IRQF_VALID);
++#else
++ irq_set_noprobe(irq);
++#endif
++}
++
++static void tahvo_irq_init(struct tahvo *tahvo)
++{
++ int base = tahvo->irq_base;
++ int end = tahvo->irq_end;
++ int irq;
++
++ for (irq = base; irq < end; irq++) {
++ irq_set_chip_data(irq, tahvo);
++ irq_set_chip_and_handler(irq, &tahvo_irq_chip,
++ handle_simple_irq);
++ irq_set_nested_thread(irq, 1);
++ tahvo_irq_setup(irq);
++ }
++}
++
++/* -------------------------------------------------------------------------- */
++
++static struct resource generic_resources[] = {
++ {
++ .start = -EINVAL, /* fixed later */
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct device *tahvo_allocate_child(const char *name,
++ struct device *parent, int irq)
++{
++ struct platform_device *pdev;
++ int ret;
++
++ pdev = platform_device_alloc(name, -1);
++ if (!pdev) {
++ dev_dbg(parent, "can't allocate %s\n", name);
++ goto err0;
++ }
++
++ pdev->dev.parent = parent;
++
++ if (irq > 0) {
++ generic_resources[0].start = irq;
++
++ ret = platform_device_add_resources(pdev, generic_resources,
++ ARRAY_SIZE(generic_resources));
++ if (ret < 0) {
++ dev_dbg(parent, "can't add resources to %s\n", name);
++ goto err1;
++ }
++ }
++
++ ret = platform_device_add(pdev);
++ if (ret < 0) {
++ dev_dbg(parent, "can't add %s\n", name);
++ goto err1;
++ }
++
++ return &pdev->dev;
++
++err1:
++ platform_device_put(pdev);
++
++err0:
++ return NULL;
++}
++
++static int tahvo_allocate_children(struct device *parent, int irq_base)
++{
++ struct device *child;
++
++ child = tahvo_allocate_child("tahvo-usb", parent,
++ irq_base + TAHVO_INT_VBUSON);
++ if (!child)
++ return -ENOMEM;
++
++ child = tahvo_allocate_child("tahvo-pwm", parent, -1);
++ if (!child)
++ return -ENOMEM;
++
++ return 0;
++}
++
++static int __devinit tahvo_probe(struct platform_device *pdev)
++{
++ struct tahvo *tahvo;
++ int rev;
++ int ret;
++ int irq;
++ int id;
++
++ tahvo = kzalloc(sizeof(*tahvo), GFP_KERNEL);
++ if (!tahvo) {
++ dev_err(&pdev->dev, "not enough memory\n");
++ ret = -ENOMEM;
++ goto err0;
++ }
++
++ irq = platform_get_irq(pdev, 0);
++ platform_set_drvdata(pdev, tahvo);
++
++ mutex_init(&tahvo->mutex);
++
++ ret = irq_alloc_descs(-1, 0, MAX_TAHVO_IRQ_HANDLERS, 0);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "failed to allocate IRQ descs\n");
++ goto err1;
++ }
++
++ tahvo->irq_base = ret;
++ tahvo->irq_end = ret + MAX_TAHVO_IRQ_HANDLERS;
++ tahvo->dev = &pdev->dev;
++ tahvo->irq = irq;
++
++ tahvo_irq_init(tahvo);
++
++ rev = __tahvo_read_reg(tahvo, TAHVO_REG_ASICR);
++
++ id = (rev >> 8) & 0xff;
++
++ if (id == 0x0b)
++ tahvo->is_betty = true;
++
++ ret = tahvo_allocate_children(&pdev->dev, tahvo->irq_base);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "failed to allocate children\n");
++ goto err2;
++ }
++
++ dev_err(&pdev->dev, "%s v%d.%d found\n",
++ tahvo->is_betty ? "Betty" : "Tahvo",
++ (rev >> 4) & 0x0f, rev & 0x0f);
++
++ /* Mask all TAHVO interrupts */
++ __tahvo_write_reg(tahvo, TAHVO_REG_IMR, 0xffff);
++
++ ret = request_threaded_irq(irq, NULL, tahvo_irq_handler,
++ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
++ "tahvo", tahvo);
++ if (ret < 0) {
++ dev_err(&pdev->dev, "Unable to register IRQ handler\n");
++ goto err2;
++ }
++
++ return 0;
++
++err2:
++ irq_free_descs(tahvo->irq_base, MAX_TAHVO_IRQ_HANDLERS);
++
++err1:
++ kfree(tahvo);
++
++err0:
++ return ret;
++}
++
++static int __devexit tahvo_remove(struct platform_device *pdev)
++{
++ struct tahvo *tahvo = platform_get_drvdata(pdev);
++ int irq;
++
++ irq = platform_get_irq(pdev, 0);
++
++ free_irq(irq, 0);
++ irq_free_descs(tahvo->irq_base, MAX_TAHVO_IRQ_HANDLERS);
++ kfree(tahvo);
++
++ return 0;
++}
++
++static struct platform_driver tahvo_driver = {
++ .probe = tahvo_probe,
++ .remove = __devexit_p(tahvo_remove),
++ .driver = {
++ .name = "tahvo",
++ },
++};
++
++static int __init tahvo_init(void)
++{
++ return platform_driver_register(&tahvo_driver);
++}
++subsys_initcall(tahvo_init);
++
++static void __exit tahvo_exit(void)
++{
++ platform_driver_unregister(&tahvo_driver);
++}
++module_exit(tahvo_exit);
++
++MODULE_DESCRIPTION("Tahvo ASIC control");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Juha Yrjölä");
++MODULE_AUTHOR("David Weinehall");
++MODULE_AUTHOR("Mikko Ylinen");
++
+--- /dev/null
++++ b/drivers/cbus/tahvo.h
+@@ -0,0 +1,58 @@
++/*
++ * drivers/cbus/tahvo.h
++ *
++ * Copyright (C) 2004, 2005 Nokia Corporation
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com> and
++ * David Weinehall <david.weinehall@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#ifndef __DRIVERS_CBUS_TAHVO_H
++#define __DRIVERS_CBUS_TAHVO_H
++
++#include <linux/types.h>
++
++/* Registers */
++#define TAHVO_REG_ASICR 0x00 /* ASIC ID & revision */
++#define TAHVO_REG_IDR 0x01 /* Interrupt ID */
++#define TAHVO_REG_IDSR 0x02 /* Interrupt status */
++#define TAHVO_REG_IMR 0x03 /* Interrupt mask */
++#define TAHVO_REG_CHGCURR 0x04 /* Charge current control PWM (8-bit) */
++#define TAHVO_REG_LEDPWMR 0x05 /* LED PWM */
++#define TAHVO_REG_USBR 0x06 /* USB control */
++#define TAHVO_REG_CHGCTL 0x08 /* Charge control register */
++#define TAHVO_REG_CHGCTL_EN 0x0001 /* Global charge enable */
++#define TAHVO_REG_CHGCTL_PWMOVR 0x0004 /* PWM override. Force charge PWM to 0%/100% duty cycle. */
++#define TAHVO_REG_CHGCTL_PWMOVRZERO 0x0008 /* If set, PWM override is 0% (If unset -> 100%) */
++#define TAHVO_REG_CHGCTL_CURMEAS 0x0040 /* Enable battery current measurement. */
++#define TAHVO_REG_CHGCTL_CURTIMRST 0x0080 /* Current measure timer reset. */
++#define TAHVO_REG_BATCURRTIMER 0x0c /* Battery current measure timer (8-bit) */
++#define TAHVO_REG_BATCURR 0x0d /* Battery (dis)charge current (signed 16-bit) */
++
++#define TAHVO_REG_MAX 0x0d
++
++/* Interrupt sources */
++#define TAHVO_INT_VBUSON 0
++#define TAHVO_INT_BATCURR 7 /* Battery current measure timer */
++
++#define MAX_TAHVO_IRQ_HANDLERS 8
++
++int tahvo_read_reg(struct device *child, unsigned reg);
++void tahvo_write_reg(struct device *child, unsigned reg, u16 val);
++void tahvo_set_clear_reg_bits(struct device *child, unsigned reg, u16 set,
++ u16 clear);
++
++#endif /* __DRIVERS_CBUS_TAHVO_H */
+--- /dev/null
++++ b/drivers/cbus/tahvo-usb.c
+@@ -0,0 +1,740 @@
++/**
++ * drivers/cbus/tahvo-usb.c
++ *
++ * Tahvo USB transeiver
++ *
++ * Copyright (C) 2005-2006 Nokia Corporation
++ *
++ * Parts copied from drivers/i2c/chips/isp1301_omap.c
++ * Copyright (C) 2004 Texas Instruments
++ * Copyright (C) 2004 David Brownell
++ *
++ * Written by Juha Yrjölä <juha.yrjola@nokia.com>,
++ * Tony Lindgren <tony@atomide.com>, and
++ * Timo Teräs <timo.teras@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/init.h>
++#include <linux/slab.h>
++#include <linux/io.h>
++#include <linux/interrupt.h>
++#include <linux/platform_device.h>
++#include <linux/usb/ch9.h>
++#include <linux/usb/gadget.h>
++#include <linux/usb.h>
++#include <linux/usb/otg.h>
++#include <linux/i2c.h>
++#include <linux/workqueue.h>
++#include <linux/kobject.h>
++#include <linux/clk.h>
++#include <linux/mutex.h>
++
++#include <asm/irq.h>
++#include <plat/usb.h>
++
++#include "cbus.h"
++#include "tahvo.h"
++
++#define DRIVER_NAME "tahvo-usb"
++
++#define USBR_SLAVE_CONTROL (1 << 8)
++#define USBR_VPPVIO_SW (1 << 7)
++#define USBR_SPEED (1 << 6)
++#define USBR_REGOUT (1 << 5)
++#define USBR_MASTER_SW2 (1 << 4)
++#define USBR_MASTER_SW1 (1 << 3)
++#define USBR_SLAVE_SW (1 << 2)
++#define USBR_NSUSPEND (1 << 1)
++#define USBR_SEMODE (1 << 0)
++
++/* bits in OTG_CTRL */
++
++/* Bits that are controlled by OMAP OTG and are read-only */
++#define OTG_CTRL_OMAP_MASK (OTG_PULLDOWN|OTG_PULLUP|OTG_DRV_VBUS|\
++ OTG_PD_VBUS|OTG_PU_VBUS|OTG_PU_ID)
++/* Bits that are controlled by transceiver */
++#define OTG_CTRL_XCVR_MASK (OTG_ASESSVLD|OTG_BSESSEND|\
++ OTG_BSESSVLD|OTG_VBUSVLD|OTG_ID)
++/* Bits that are controlled by system */
++#define OTG_CTRL_SYS_MASK (OTG_A_BUSREQ|OTG_A_SETB_HNPEN|OTG_B_BUSREQ|\
++ OTG_B_HNPEN|OTG_BUSDROP)
++
++#if defined(CONFIG_USB_OHCI_HCD) && !defined(CONFIG_USB_OTG)
++#error tahvo-otg.c does not work with OCHI yet!
++#endif
++
++#define TAHVO_MODE_HOST 0
++#define TAHVO_MODE_PERIPHERAL 1
++
++#ifdef CONFIG_USB_OTG
++#define TAHVO_MODE(tu) (tu)->tahvo_mode
++#elif defined(CONFIG_USB_GADGET_OMAP)
++#define TAHVO_MODE(tu) TAHVO_MODE_PERIPHERAL
++#else
++#define TAHVO_MODE(tu) TAHVO_MODE_HOST
++#endif
++
++struct tahvo_usb {
++ struct device *dev;
++ struct platform_device *pt_dev;
++ struct otg_transceiver otg;
++ int vbus_state;
++ struct mutex serialize;
++#ifdef CONFIG_USB_OTG
++ int tahvo_mode;
++#endif
++ struct clk *ick;
++
++ int irq;
++};
++static struct tahvo_usb *tahvo_usb_device;
++
++/*
++ * ---------------------------------------------------------------------------
++ * OTG related functions
++ *
++ * These shoud be separated into omap-otg.c driver module, as they are used
++ * by various transceivers. These functions are needed in the UDC-only case
++ * as well. These functions are copied from GPL isp1301_omap.c
++ * ---------------------------------------------------------------------------
++ */
++static struct platform_device *tahvo_otg_dev;
++
++static irqreturn_t omap_otg_irq(int irq, void *arg)
++{
++ u16 otg_irq;
++
++ otg_irq = omap_readw(OTG_IRQ_SRC);
++ if (otg_irq & OPRT_CHG) {
++ omap_writew(OPRT_CHG, OTG_IRQ_SRC);
++ } else if (otg_irq & B_SRP_TMROUT) {
++ omap_writew(B_SRP_TMROUT, OTG_IRQ_SRC);
++ } else if (otg_irq & B_HNP_FAIL) {
++ omap_writew(B_HNP_FAIL, OTG_IRQ_SRC);
++ } else if (otg_irq & A_SRP_DETECT) {
++ omap_writew(A_SRP_DETECT, OTG_IRQ_SRC);
++ } else if (otg_irq & A_REQ_TMROUT) {
++ omap_writew(A_REQ_TMROUT, OTG_IRQ_SRC);
++ } else if (otg_irq & A_VBUS_ERR) {
++ omap_writew(A_VBUS_ERR, OTG_IRQ_SRC);
++ } else if (otg_irq & DRIVER_SWITCH) {
++#ifdef CONFIG_USB_OTG
++ if ((!(omap_readl(OTG_CTRL) & OTG_DRIVER_SEL)) &&
++ tu->otg.host && tu->otg.state == OTG_STATE_A_HOST) {
++ /* role is host */
++ usb_bus_start_enum(tu->otg.host,
++ tu->otg.host->otg_port);
++ }
++#endif
++ omap_writew(DRIVER_SWITCH, OTG_IRQ_SRC);
++ } else
++ return IRQ_NONE;
++
++ return IRQ_HANDLED;
++
++}
++
++static int tahvo_otg_init(void)
++{
++ u32 l;
++
++#ifdef CONFIG_USB_OTG
++ if (!tahvo_otg_dev) {
++ printk("tahvo-usb: no tahvo_otg_dev\n");
++ return -ENODEV;
++ }
++#endif
++
++ l = omap_readl(OTG_SYSCON_1);
++ l &= ~OTG_IDLE_EN;
++ omap_writel(l, OTG_SYSCON_1);
++ udelay(100);
++
++ /* some of these values are board-specific... */
++ l = omap_readl(OTG_SYSCON_2);
++ l |= OTG_EN
++ /* for B-device: */
++ | SRP_GPDATA /* 9msec Bdev D+ pulse */
++ | SRP_GPDVBUS /* discharge after VBUS pulse */
++ // | (3 << 24) /* 2msec VBUS pulse */
++ /* for A-device: */
++ | (0 << 20) /* 200ms nominal A_WAIT_VRISE timer */
++ | SRP_DPW /* detect 167+ns SRP pulses */
++ | SRP_DATA | SRP_VBUS; /* accept both kinds of SRP pulse */
++ omap_writel(l, OTG_SYSCON_2);
++
++ omap_writew(DRIVER_SWITCH | OPRT_CHG
++ | B_SRP_TMROUT | B_HNP_FAIL
++ | A_VBUS_ERR | A_SRP_DETECT | A_REQ_TMROUT,
++ OTG_IRQ_EN);
++ l = omap_readl(OTG_SYSCON_2);
++ l |= OTG_EN;
++ omap_writel(l, OTG_SYSCON_2);
++
++ return 0;
++}
++
++static int __init omap_otg_probe(struct platform_device *pdev)
++{
++ int ret;
++
++ tahvo_otg_dev = pdev;
++ ret = tahvo_otg_init();
++ if (ret != 0) {
++ printk(KERN_ERR "tahvo-usb: tahvo_otg_init failed\n");
++ return ret;
++ }
++
++ return request_irq(tahvo_otg_dev->resource[1].start,
++ omap_otg_irq, IRQF_DISABLED, DRIVER_NAME,
++ tahvo_usb_device);
++}
++
++static int __exit omap_otg_remove(struct platform_device *pdev)
++{
++ free_irq(tahvo_otg_dev->resource[1].start, tahvo_usb_device);
++ tahvo_otg_dev = NULL;
++
++ return 0;
++}
++
++struct platform_driver omap_otg_driver = {
++ .driver = {
++ .name = "omap_otg",
++ },
++ .remove = __exit_p(omap_otg_remove),
++};
++
++/*
++ * ---------------------------------------------------------------------------
++ * Tahvo related functions
++ * These are Nokia proprietary code, except for the OTG register settings,
++ * which are copied from isp1301.c
++ * ---------------------------------------------------------------------------
++ */
++static ssize_t vbus_state_show(struct device *device,
++ struct device_attribute *attr, char *buf)
++{
++ struct tahvo_usb *tu = dev_get_drvdata(device);
++ return sprintf(buf, "%d\n", tu->vbus_state);
++}
++static DEVICE_ATTR(vbus_state, 0444, vbus_state_show, NULL);
++
++int vbus_active = 0;
++
++static void check_vbus_state(struct tahvo_usb *tu)
++{
++ int reg, prev_state;
++
++ reg = tahvo_read_reg(tu->dev, TAHVO_REG_IDSR);
++ if (reg & 0x01) {
++ u32 l;
++
++ vbus_active = 1;
++ switch (tu->otg.state) {
++ case OTG_STATE_B_IDLE:
++ /* Enable the gadget driver */
++ if (tu->otg.gadget)
++ usb_gadget_vbus_connect(tu->otg.gadget);
++ /* Set B-session valid and not B-sessio ended to indicate
++ * Vbus to be ok. */
++ l = omap_readl(OTG_CTRL);
++ l &= ~OTG_BSESSEND;
++ l |= OTG_BSESSVLD;
++ omap_writel(l, OTG_CTRL);
++
++ tu->otg.state = OTG_STATE_B_PERIPHERAL;
++ break;
++ case OTG_STATE_A_IDLE:
++ /* Session is now valid assuming the USB hub is driving Vbus */
++ tu->otg.state = OTG_STATE_A_HOST;
++ break;
++ default:
++ break;
++ }
++ printk("USB cable connected\n");
++ } else {
++ switch (tu->otg.state) {
++ case OTG_STATE_B_PERIPHERAL:
++ if (tu->otg.gadget)
++ usb_gadget_vbus_disconnect(tu->otg.gadget);
++ tu->otg.state = OTG_STATE_B_IDLE;
++ break;
++ case OTG_STATE_A_HOST:
++ tu->otg.state = OTG_STATE_A_IDLE;
++ break;
++ default:
++ break;
++ }
++ printk("USB cable disconnected\n");
++ vbus_active = 0;
++ }
++
++ prev_state = tu->vbus_state;
++ tu->vbus_state = reg & 0x01;
++ if (prev_state != tu->vbus_state)
++ sysfs_notify(&tu->pt_dev->dev.kobj, NULL, "vbus_state");
++}
++
++static void tahvo_usb_become_host(struct tahvo_usb *tu)
++{
++ u32 l;
++
++ /* Clear system and transceiver controlled bits
++ * also mark the A-session is always valid */
++ tahvo_otg_init();
++
++ l = omap_readl(OTG_CTRL);
++ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK);
++ l |= OTG_ASESSVLD;
++ omap_writel(l, OTG_CTRL);
++
++ /* Power up the transceiver in USB host mode */
++ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, USBR_REGOUT | USBR_NSUSPEND |
++ USBR_MASTER_SW2 | USBR_MASTER_SW1);
++ tu->otg.state = OTG_STATE_A_IDLE;
++
++ check_vbus_state(tu);
++}
++
++static void tahvo_usb_stop_host(struct tahvo_usb *tu)
++{
++ tu->otg.state = OTG_STATE_A_IDLE;
++}
++
++static void tahvo_usb_become_peripheral(struct tahvo_usb *tu)
++{
++ u32 l;
++
++ /* Clear system and transceiver controlled bits
++ * and enable ID to mark peripheral mode and
++ * BSESSEND to mark no Vbus */
++ tahvo_otg_init();
++ l = omap_readl(OTG_CTRL);
++ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK | OTG_BSESSVLD);
++ l |= OTG_ID | OTG_BSESSEND;
++ omap_writel(l, OTG_CTRL);
++
++ /* Power up transceiver and set it in USB perhiperal mode */
++ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, USBR_SLAVE_CONTROL | USBR_REGOUT | USBR_NSUSPEND | USBR_SLAVE_SW);
++ tu->otg.state = OTG_STATE_B_IDLE;
++
++ check_vbus_state(tu);
++}
++
++static void tahvo_usb_stop_peripheral(struct tahvo_usb *tu)
++{
++ u32 l;
++
++ l = omap_readl(OTG_CTRL);
++ l &= ~OTG_BSESSVLD;
++ l |= OTG_BSESSEND;
++ omap_writel(l, OTG_CTRL);
++
++ if (tu->otg.gadget)
++ usb_gadget_vbus_disconnect(tu->otg.gadget);
++ tu->otg.state = OTG_STATE_B_IDLE;
++
++}
++
++static void tahvo_usb_power_off(struct tahvo_usb *tu)
++{
++ u32 l;
++ int id;
++
++ /* Disable gadget controller if any */
++ if (tu->otg.gadget)
++ usb_gadget_vbus_disconnect(tu->otg.gadget);
++
++ /* Disable OTG and interrupts */
++ if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
++ id = OTG_ID;
++ else
++ id = 0;
++ l = omap_readl(OTG_CTRL);
++ l &= ~(OTG_CTRL_XCVR_MASK | OTG_CTRL_SYS_MASK | OTG_BSESSVLD);
++ l |= id | OTG_BSESSEND;
++ omap_writel(l, OTG_CTRL);
++ omap_writew(0, OTG_IRQ_EN);
++
++ l = omap_readl(OTG_SYSCON_2);
++ l &= ~OTG_EN;
++ omap_writel(l, OTG_SYSCON_2);
++
++ l = omap_readl(OTG_SYSCON_1);
++ l |= OTG_IDLE_EN;
++ omap_writel(l, OTG_SYSCON_1);
++
++ /* Power off transceiver */
++ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, 0);
++ tu->otg.state = OTG_STATE_UNDEFINED;
++}
++
++
++static int tahvo_usb_set_power(struct otg_transceiver *dev, unsigned mA)
++{
++ struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, otg);
++
++ dev_dbg(&tu->pt_dev->dev, "set_power %d mA\n", mA);
++
++ if (dev->state == OTG_STATE_B_PERIPHERAL) {
++ /* REVISIT: Can Tahvo charge battery from VBUS? */
++ }
++ return 0;
++}
++
++static int tahvo_usb_set_suspend(struct otg_transceiver *dev, int suspend)
++{
++ struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, otg);
++ u16 w;
++
++ dev_dbg(&tu->pt_dev->dev, "set_suspend\n");
++
++ w = tahvo_read_reg(tu->dev, TAHVO_REG_USBR);
++ if (suspend)
++ w &= ~USBR_NSUSPEND;
++ else
++ w |= USBR_NSUSPEND;
++ tahvo_write_reg(tu->dev, TAHVO_REG_USBR, w);
++
++ return 0;
++}
++
++static int tahvo_usb_start_srp(struct otg_transceiver *dev)
++{
++ struct tahvo_usb *tu = container_of(dev, struct tahvo_usb, otg);
++ u32 otg_ctrl;
++
++ dev_dbg(&tu->pt_dev->dev, "start_srp\n");
++
++ if (!dev || tu->otg.state != OTG_STATE_B_IDLE)
++ return -ENODEV;
++
++ otg_ctrl = omap_readl(OTG_CTRL);
++ if (!(otg_ctrl & OTG_BSESSEND))
++ return -EINVAL;
++
++ otg_ctrl |= OTG_B_BUSREQ;
++ otg_ctrl &= ~OTG_A_BUSREQ & OTG_CTRL_SYS_MASK;
++ omap_writel(otg_ctrl, OTG_CTRL);
++ tu->otg.state = OTG_STATE_B_SRP_INIT;
++
++ return 0;
++}
++
++static int tahvo_usb_start_hnp(struct otg_transceiver *otg)
++{
++ struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
++
++ dev_dbg(&tu->pt_dev->dev, "start_hnp\n");
++#ifdef CONFIG_USB_OTG
++ /* REVISIT: Add this for OTG */
++#endif
++ return -EINVAL;
++}
++
++static int tahvo_usb_set_host(struct otg_transceiver *otg, struct usb_bus *host)
++{
++ struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
++ u32 l;
++
++ dev_dbg(&tu->pt_dev->dev, "set_host %p\n", host);
++
++ if (otg == NULL)
++ return -ENODEV;
++
++#if defined(CONFIG_USB_OTG) || !defined(CONFIG_USB_GADGET_OMAP)
++
++ mutex_lock(&tu->serialize);
++
++ if (host == NULL) {
++ if (TAHVO_MODE(tu) == TAHVO_MODE_HOST)
++ tahvo_usb_power_off(tu);
++ tu->otg.host = NULL;
++ mutex_unlock(&tu->serialize);
++ return 0;
++ }
++
++ l = omap_readl(OTG_SYSCON_1);
++ l &= ~(OTG_IDLE_EN | HST_IDLE_EN | DEV_IDLE_EN);
++ omap_writel(l, OTG_SYSCON_1);
++
++ if (TAHVO_MODE(tu) == TAHVO_MODE_HOST) {
++ tu->otg.host = NULL;
++ tahvo_usb_become_host(tu);
++ }
++
++ tu->otg.host = host;
++
++ mutex_unlock(&tu->serialize);
++#else
++ /* No host mode configured, so do not allow host controlled to be set */
++ return -EINVAL;
++#endif
++
++ return 0;
++}
++
++static int tahvo_usb_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
++{
++ struct tahvo_usb *tu = container_of(otg, struct tahvo_usb, otg);
++
++ dev_dbg(&tu->pt_dev->dev, "set_peripheral %p\n", gadget);
++
++ if (!otg)
++ return -ENODEV;
++
++#if defined(CONFIG_USB_OTG) || defined(CONFIG_USB_GADGET_OMAP)
++
++ mutex_lock(&tu->serialize);
++
++ if (!gadget) {
++ if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
++ tahvo_usb_power_off(tu);
++ tu->otg.gadget = NULL;
++ mutex_unlock(&tu->serialize);
++ return 0;
++ }
++
++ tu->otg.gadget = gadget;
++ if (TAHVO_MODE(tu) == TAHVO_MODE_PERIPHERAL)
++ tahvo_usb_become_peripheral(tu);
++
++ mutex_unlock(&tu->serialize);
++#else
++ /* No gadget mode configured, so do not allow host controlled to be set */
++ return -EINVAL;
++#endif
++
++ return 0;
++}
++
++static irqreturn_t tahvo_usb_vbus_interrupt(int irq, void *_tu)
++{
++ struct tahvo_usb *tu = _tu;
++
++ check_vbus_state(tu);
++
++ return IRQ_HANDLED;
++}
++
++#ifdef CONFIG_USB_OTG
++static ssize_t otg_mode_show(struct device *device,
++ struct device_attribute *attr, char *buf)
++{
++ struct tahvo_usb *tu = dev_get_drvdata(device);
++ switch (tu->tahvo_mode) {
++ case TAHVO_MODE_HOST:
++ return sprintf(buf, "host\n");
++ case TAHVO_MODE_PERIPHERAL:
++ return sprintf(buf, "peripheral\n");
++ }
++ return sprintf(buf, "unknown\n");
++}
++
++static ssize_t otg_mode_store(struct device *device,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct tahvo_usb *tu = dev_get_drvdata(device);
++ int r;
++
++ r = strlen(buf);
++ mutex_lock(&tu->serialize);
++ if (strncmp(buf, "host", 4) == 0) {
++ if (tu->tahvo_mode == TAHVO_MODE_PERIPHERAL)
++ tahvo_usb_stop_peripheral(tu);
++ tu->tahvo_mode = TAHVO_MODE_HOST;
++ if (tu->otg.host) {
++ printk(KERN_INFO "Selected HOST mode: host controller present.\n");
++ tahvo_usb_become_host(tu);
++ } else {
++ printk(KERN_INFO "Selected HOST mode: no host controller, powering off.\n");
++ tahvo_usb_power_off(tu);
++ }
++ } else if (strncmp(buf, "peripheral", 10) == 0) {
++ if (tu->tahvo_mode == TAHVO_MODE_HOST)
++ tahvo_usb_stop_host(tu);
++ tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
++ if (tu->otg.gadget) {
++ printk(KERN_INFO "Selected PERIPHERAL mode: gadget driver present.\n");
++ tahvo_usb_become_peripheral(tu);
++ } else {
++ printk(KERN_INFO "Selected PERIPHERAL mode: no gadget driver, powering off.\n");
++ tahvo_usb_power_off(tu);
++ }
++ } else
++ r = -EINVAL;
++
++ mutex_unlock(&tu->serialize);
++ return r;
++}
++
++static DEVICE_ATTR(otg_mode, 0644, otg_mode_show, otg_mode_store);
++#endif
++
++static int __init tahvo_usb_probe(struct platform_device *pdev)
++{
++ struct tahvo_usb *tu;
++ struct device *dev = &pdev->dev;
++ int ret;
++ int irq;
++
++ dev_dbg(dev, "probe\n");
++
++ /* Create driver data */
++ tu = kzalloc(sizeof(*tu), GFP_KERNEL);
++ if (!tu)
++ return -ENOMEM;
++ tahvo_usb_device = tu;
++
++ tu->dev = dev;
++ tu->pt_dev = pdev;
++#ifdef CONFIG_USB_OTG
++ /* Default mode */
++#ifdef CONFIG_CBUS_TAHVO_USB_HOST_BY_DEFAULT
++ tu->tahvo_mode = TAHVO_MODE_HOST;
++#else
++ tu->tahvo_mode = TAHVO_MODE_PERIPHERAL;
++#endif
++#endif
++
++ mutex_init(&tu->serialize);
++
++ tu->ick = clk_get(NULL, "usb_l4_ick");
++ if (IS_ERR(tu->ick)) {
++ dev_err(dev, "Failed to get usb_l4_ick\n");
++ ret = PTR_ERR(tu->ick);
++ goto err_free_tu;
++ }
++ clk_enable(tu->ick);
++
++ /* Set initial state, so that we generate kevents only on
++ * state changes */
++ tu->vbus_state = tahvo_read_reg(tu->dev, TAHVO_REG_IDSR) & 0x01;
++
++ irq = platform_get_irq(pdev, 0);
++ tu->irq = irq;
++
++ /* We cannot enable interrupt until omap_udc is initialized */
++ ret = request_threaded_irq(irq, NULL, tahvo_usb_vbus_interrupt,
++ IRQF_ONESHOT, "tahvo-vbus", tu);
++ if (ret != 0) {
++ printk(KERN_ERR "Could not register Tahvo interrupt for VBUS\n");
++ goto err_release_clk;
++ }
++
++ /* Attributes */
++ ret = device_create_file(dev, &dev_attr_vbus_state);
++#ifdef CONFIG_USB_OTG
++ ret |= device_create_file(dev, &dev_attr_otg_mode);
++#endif
++ if (ret)
++ printk(KERN_ERR "attribute creation failed: %d\n", ret);
++
++ /* Create OTG interface */
++ tahvo_usb_power_off(tu);
++ tu->otg.state = OTG_STATE_UNDEFINED;
++ tu->otg.label = DRIVER_NAME;
++ tu->otg.set_host = tahvo_usb_set_host;
++ tu->otg.set_peripheral = tahvo_usb_set_peripheral;
++ tu->otg.set_power = tahvo_usb_set_power;
++ tu->otg.set_suspend = tahvo_usb_set_suspend;
++ tu->otg.start_srp = tahvo_usb_start_srp;
++ tu->otg.start_hnp = tahvo_usb_start_hnp;
++
++ ret = otg_set_transceiver(&tu->otg);
++ if (ret < 0) {
++ printk(KERN_ERR "Cannot register USB transceiver\n");
++ goto err_free_irq;
++ }
++
++ dev_set_drvdata(dev, tu);
++
++ return 0;
++
++err_free_irq:
++ free_irq(tu->irq, tu);
++err_release_clk:
++ clk_disable(tu->ick);
++ clk_put(tu->ick);
++err_free_tu:
++ kfree(tu);
++ tahvo_usb_device = NULL;
++
++ return ret;
++}
++
++static int __exit tahvo_usb_remove(struct platform_device *pdev)
++{
++ struct tahvo_usb *tu = platform_get_drvdata(pdev);
++
++ dev_dbg(&pdev->dev, "remove\n");
++
++ free_irq(tu->irq, tu);
++ flush_scheduled_work();
++ otg_set_transceiver(0);
++ device_remove_file(&pdev->dev, &dev_attr_vbus_state);
++#ifdef CONFIG_USB_OTG
++ device_remove_file(&pdev->dev, &dev_attr_otg_mode);
++#endif
++ clk_disable(tu->ick);
++ clk_put(tu->ick);
++
++ kfree(tu);
++ tahvo_usb_device = NULL;
++
++ return 0;
++}
++
++static struct platform_driver tahvo_usb_driver = {
++ .driver = {
++ .name = "tahvo-usb",
++ },
++ .remove = __exit_p(tahvo_usb_remove),
++};
++
++static int __init tahvo_usb_init(void)
++{
++ int ret = 0;
++
++ ret = platform_driver_probe(&tahvo_usb_driver, tahvo_usb_probe);
++ if (ret)
++ return ret;
++
++ ret = platform_driver_probe(&omap_otg_driver, omap_otg_probe);
++ if (ret) {
++ platform_driver_unregister(&tahvo_usb_driver);
++ return ret;
++ }
++
++ return 0;
++}
++
++subsys_initcall(tahvo_usb_init);
++
++static void __exit tahvo_usb_exit(void)
++{
++ platform_driver_unregister(&omap_otg_driver);
++ platform_driver_unregister(&tahvo_usb_driver);
++}
++module_exit(tahvo_usb_exit);
++
++MODULE_DESCRIPTION("Tahvo USB OTG Transceiver Driver");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Juha Yrjölä, Tony Lindgren, and Timo Teräs");
+--- a/drivers/Makefile
++++ b/drivers/Makefile
+@@ -78,7 +78,7 @@ obj-$(CONFIG_GAMEPORT) += input/gamepor
+ obj-$(CONFIG_INPUT) += input/
+ obj-$(CONFIG_I2O) += message/
+ obj-$(CONFIG_RTC_LIB) += rtc/
+-obj-y += i2c/ media/
++obj-y += i2c/ media/ cbus/
+ obj-$(CONFIG_PPS) += pps/
+ obj-$(CONFIG_PTP_1588_CLOCK) += ptp/
+ obj-$(CONFIG_W1) += w1/
+--- a/drivers/Kconfig
++++ b/drivers/Kconfig
+@@ -2,6 +2,8 @@ menu "Device Drivers"
+
+ source "drivers/base/Kconfig"
+
++source "drivers/cbus/Kconfig"
++
+ source "drivers/connector/Kconfig"
+
+ source "drivers/mtd/Kconfig"
--- /dev/null
+--- a/drivers/cbus/tahvo.c
++++ b/drivers/cbus/tahvo.c
+@@ -104,7 +104,9 @@ void tahvo_write_reg(struct device *chil
+ {
+ struct tahvo *tahvo = dev_get_drvdata(child->parent);
+
++ mutex_lock(&tahvo->mutex);
+ __tahvo_write_reg(tahvo, reg, val);
++ mutex_unlock(&tahvo->mutex);
+ }
+ EXPORT_SYMBOL(tahvo_write_reg);
+
--- /dev/null
+--- a/drivers/cbus/retu.c
++++ b/drivers/cbus/retu.c
+@@ -53,9 +53,6 @@ struct retu {
+
+ int irq;
+
+- int ack;
+- bool ack_pending;
+-
+ int mask;
+ bool mask_pending;
+
+@@ -191,9 +188,10 @@ static irqreturn_t retu_irq_handler(int
+ mutex_lock(&retu->mutex);
+ idr = __retu_read_reg(retu, RETU_REG_IDR);
+ imr = __retu_read_reg(retu, RETU_REG_IMR);
++ idr &= ~imr;
++ __retu_write_reg(retu, RETU_REG_IDR, idr);
+ mutex_unlock(&retu->mutex);
+
+- idr &= ~imr;
+ if (!idr) {
+ dev_vdbg(retu->dev, "No IRQ, spurious?\n");
+ return IRQ_NONE;
+@@ -232,15 +230,6 @@ static void retu_irq_unmask(struct irq_d
+
+ }
+
+-static void retu_irq_ack(struct irq_data *data)
+-{
+- struct retu *retu = irq_data_get_irq_chip_data(data);
+- int irq = data->irq;
+-
+- retu->ack |= (1 << (irq - retu->irq_base));
+- retu->ack_pending = true;
+-}
+-
+ static void retu_bus_lock(struct irq_data *data)
+ {
+ struct retu *retu = irq_data_get_irq_chip_data(data);
+@@ -257,11 +246,6 @@ static void retu_bus_sync_unlock(struct
+ retu->mask_pending = false;
+ }
+
+- if (retu->ack_pending) {
+- __retu_write_reg(retu, RETU_REG_IDR, retu->ack);
+- retu->ack_pending = false;
+- }
+-
+ mutex_unlock(&retu->mutex);
+ }
+
+@@ -271,7 +255,6 @@ static struct irq_chip retu_irq_chip = {
+ .irq_bus_sync_unlock = retu_bus_sync_unlock,
+ .irq_mask = retu_irq_mask,
+ .irq_unmask = retu_irq_unmask,
+- .irq_ack = retu_irq_ack,
+ };
+
+ static inline void retu_irq_setup(int irq)
+@@ -291,8 +274,7 @@ static void retu_irq_init(struct retu *r
+
+ for (irq = base; irq < end; irq++) {
+ irq_set_chip_data(irq, retu);
+- irq_set_chip_and_handler(irq, &retu_irq_chip,
+- handle_simple_irq);
++ irq_set_chip(irq, &retu_irq_chip);
+ irq_set_nested_thread(irq, 1);
+ retu_irq_setup(irq);
+ }
+--- a/drivers/cbus/tahvo.c
++++ b/drivers/cbus/tahvo.c
+@@ -48,11 +48,9 @@ struct tahvo {
+ int irq_end;
+ int irq;
+
+- int ack;
+ int mask;
+
+ unsigned int mask_pending:1;
+- unsigned int ack_pending:1;
+ unsigned int is_betty:1;
+ };
+
+@@ -138,9 +136,12 @@ static irqreturn_t tahvo_irq_handler(int
+ u16 id;
+ u16 im;
+
++ mutex_lock(&tahvo->mutex);
+ id = __tahvo_read_reg(tahvo, TAHVO_REG_IDR);
+ im = __tahvo_read_reg(tahvo, TAHVO_REG_IMR);
+ id &= ~im;
++ __tahvo_write_reg(tahvo, TAHVO_REG_IDR, id);
++ mutex_unlock(&tahvo->mutex);
+
+ if (!id) {
+ dev_vdbg(tahvo->dev, "No IRQ, spurious ?\n");
+@@ -177,11 +178,6 @@ static void tahvo_irq_bus_sync_unlock(st
+ tahvo->mask_pending = false;
+ }
+
+- if (tahvo->ack_pending) {
+- __tahvo_write_reg(tahvo, TAHVO_REG_IDR, tahvo->ack);
+- tahvo->ack_pending = false;
+- }
+-
+ mutex_unlock(&tahvo->mutex);
+ }
+
+@@ -203,22 +199,12 @@ static void tahvo_irq_unmask(struct irq_
+ tahvo->mask_pending = true;
+ }
+
+-static void tahvo_irq_ack(struct irq_data *data)
+-{
+- struct tahvo *tahvo = irq_data_get_irq_chip_data(data);
+- int irq = data->irq;
+-
+- tahvo->ack |= (1 << (irq - tahvo->irq_base));
+- tahvo->ack_pending = true;
+-}
+-
+ static struct irq_chip tahvo_irq_chip = {
+ .name = "tahvo",
+ .irq_bus_lock = tahvo_irq_bus_lock,
+ .irq_bus_sync_unlock = tahvo_irq_bus_sync_unlock,
+ .irq_mask = tahvo_irq_mask,
+ .irq_unmask = tahvo_irq_unmask,
+- .irq_ack = tahvo_irq_ack,
+ };
+
+ static inline void tahvo_irq_setup(int irq)
+@@ -238,8 +224,7 @@ static void tahvo_irq_init(struct tahvo
+
+ for (irq = base; irq < end; irq++) {
+ irq_set_chip_data(irq, tahvo);
+- irq_set_chip_and_handler(irq, &tahvo_irq_chip,
+- handle_simple_irq);
++ irq_set_chip(irq, &tahvo_irq_chip);
+ irq_set_nested_thread(irq, 1);
+ tahvo_irq_setup(irq);
+ }
--- /dev/null
+--- a/drivers/cbus/retu.c
++++ b/drivers/cbus/retu.c
+@@ -451,7 +451,8 @@ static int __devinit retu_probe(struct p
+ (rev >> 4) & 0x07, rev & 0x0f);
+
+ /* Mask all RETU interrupts */
+- __retu_write_reg(retu, RETU_REG_IMR, 0xffff);
++ retu->mask = 0xFFFF;
++ __retu_write_reg(retu, RETU_REG_IMR, retu->mask);
+
+ ret = request_threaded_irq(retu->irq, NULL, retu_irq_handler,
+ IRQF_ONESHOT, "retu", retu);
+--- a/drivers/cbus/tahvo.c
++++ b/drivers/cbus/tahvo.c
+@@ -346,7 +346,8 @@ static int __devinit tahvo_probe(struct
+ (rev >> 4) & 0x0f, rev & 0x0f);
+
+ /* Mask all TAHVO interrupts */
+- __tahvo_write_reg(tahvo, TAHVO_REG_IMR, 0xffff);
++ tahvo->mask = 0xFFFF;
++ __tahvo_write_reg(tahvo, TAHVO_REG_IMR, tahvo->mask);
+
+ ret = request_threaded_irq(irq, NULL, tahvo_irq_handler,
+ IRQF_TRIGGER_RISING | IRQF_ONESHOT,
--- /dev/null
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -15,8 +15,11 @@
+ #include <linux/delay.h>
+ #include <linux/gpio.h>
+ #include <linux/init.h>
++#include <linux/irq.h>
+ #include <linux/io.h>
+ #include <linux/stddef.h>
++#include <linux/platform_device.h>
++#include <linux/platform_data/cbus.h>
+ #include <linux/i2c.h>
+ #include <linux/spi/spi.h>
+ #include <linux/usb/musb.h>
+@@ -193,6 +196,110 @@ static struct omap_onenand_platform_data
+ };
+ #endif
+
++#if defined(CONFIG_CBUS) || defined(CONFIG_CBUS_MODULE)
++
++static struct cbus_host_platform_data n8x0_cbus_data = {
++ .clk_gpio = 66,
++ .dat_gpio = 65,
++ .sel_gpio = 64,
++};
++
++static struct platform_device n8x0_cbus_device = {
++ .name = "cbus",
++ .id = -1,
++ .dev = {
++ .platform_data = &n8x0_cbus_data,
++ },
++};
++
++static struct resource retu_resource[] = {
++ {
++ .start = -EINVAL, /* set later */
++ .flags = IORESOURCE_IRQ,
++ },
++};
++
++static struct cbus_retu_platform_data n8x0_retu_data = {
++ .devid = CBUS_RETU_DEVICE_ID,
++};
++
++static struct platform_device retu_device = {
++ .name = "retu",
++ .id = -1,
++ .resource = retu_resource,
++ .num_resources = ARRAY_SIZE(retu_resource),
++ .dev = {
++ .platform_data = &n8x0_retu_data,
++ .parent = &n8x0_cbus_device.dev,
++ },
++};
++
++static struct resource tahvo_resource[] = {
++ {
++ .start = -EINVAL, /* set later */
++ .flags = IORESOURCE_IRQ,
++ }
++};
++
++static struct platform_device tahvo_device = {
++ .name = "tahvo",
++ .id = -1,
++ .resource = tahvo_resource,
++ .num_resources = ARRAY_SIZE(tahvo_resource),
++ .dev = {
++ .parent = &n8x0_cbus_device.dev,
++ },
++};
++
++static void __init n8x0_cbus_init(void)
++{
++ int ret;
++
++ platform_device_register(&n8x0_cbus_device);
++
++ ret = gpio_request(108, "RETU irq");
++ if (ret < 0) {
++ pr_err("retu: Unable to reserve IRQ GPIO\n");
++ return;
++ }
++
++ ret = gpio_direction_input(108);
++ if (ret < 0) {
++ pr_err("retu: Unable to change gpio direction\n");
++ gpio_free(108);
++ return;
++ }
++
++ irq_set_irq_type(gpio_to_irq(108), IRQ_TYPE_EDGE_RISING);
++ retu_resource[0].start = gpio_to_irq(108);
++ platform_device_register(&retu_device);
++
++ ret = gpio_request(111, "TAHVO irq");
++ if (ret) {
++ pr_err("tahvo: Unable to reserve IRQ GPIO\n");
++ gpio_free(108);
++ return;
++ }
++
++ /* Set the pin as input */
++ ret = gpio_direction_input(111);
++ if (ret) {
++ pr_err("tahvo: Unable to change direction\n");
++ gpio_free(108);
++ gpio_free(111);
++ return;
++ }
++
++ tahvo_resource[0].start = gpio_to_irq(111);
++ platform_device_register(&tahvo_device);
++}
++
++#else
++static inline void __init n8x0_cbus_init(void)
++{
++}
++#endif
++
+ #if defined(CONFIG_MENELAUS) && \
+ (defined(CONFIG_MMC_OMAP) || defined(CONFIG_MMC_OMAP_MODULE))
+
+@@ -671,6 +778,8 @@ static inline void board_serial_init(voi
+ static void __init n8x0_init_machine(void)
+ {
+ omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
++ n8x0_cbus_init();
++
+ /* FIXME: add n810 spi devices */
+ spi_register_board_info(n800_spi_board_info,
+ ARRAY_SIZE(n800_spi_board_info));
+--- /dev/null
++++ b/include/linux/platform_data/cbus.h
+@@ -0,0 +1,38 @@
++/*
++ * cbus.h - CBUS platform_data definition
++ *
++ * Copyright (C) 2004 - 2009 Nokia Corporation
++ *
++ * Written by Felipe Balbi <felipe.balbi@nokia.com>
++ *
++ * This file is subject to the terms and conditions of the GNU General
++ * Public License. See the file "COPYING" in the main directory of this
++ * archive for more details.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ */
++
++#ifndef __INCLUDE_LINUX_CBUS_H
++#define __INCLUDE_LINUX_CBUS_H
++
++#define CBUS_RETU_DEVICE_ID 0x01
++#define CBUS_TAHVO_DEVICE_ID 0x02
++
++struct cbus_host_platform_data {
++ int dat_gpio;
++ int clk_gpio;
++ int sel_gpio;
++};
++
++struct cbus_retu_platform_data {
++ int devid;
++};
++
++#endif /* __INCLUDE_LINUX_CBUS_H */
--- /dev/null
+--- a/drivers/video/omap/omapfb_main.c
++++ b/drivers/video/omap/omapfb_main.c
+@@ -420,10 +420,10 @@ static void set_fb_fix(struct fb_info *f
+ fbi->screen_base = rg->vaddr;
+
+ if (!from_init) {
+- mutex_lock(&fbi->mm_lock);
++ preempt_disable();
+ fix->smem_start = rg->paddr;
+ fix->smem_len = rg->size;
+- mutex_unlock(&fbi->mm_lock);
++ preempt_enable();
+ } else {
+ fix->smem_start = rg->paddr;
+ fix->smem_len = rg->size;
+@@ -933,10 +933,10 @@ static int omapfb_setup_mem(struct fb_in
+ * plane memory is dealloce'd, the other
+ * screen parameters in var / fix are invalid.
+ */
+- mutex_lock(&fbi->mm_lock);
++ preempt_disable();
+ fbi->fix.smem_start = 0;
+ fbi->fix.smem_len = 0;
+- mutex_unlock(&fbi->mm_lock);
++ preempt_enable();
+ }
+ }
+ }
+--- a/drivers/video/fbmem.c
++++ b/drivers/video/fbmem.c
+@@ -1383,8 +1383,10 @@ fb_mmap(struct file *file, struct vm_are
+ }
+
+ /* frame buffer memory */
++ preempt_disable();
+ start = info->fix.smem_start;
+ len = PAGE_ALIGN((start & ~PAGE_MASK) + info->fix.smem_len);
++ preempt_enable();
+ if (off >= len) {
+ /* memory mapped io */
+ off -= len;
--- /dev/null
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -24,6 +24,7 @@
+ #include <linux/spi/spi.h>
+ #include <linux/usb/musb.h>
+ #include <sound/tlv320aic3x.h>
++#include <linux/spi/tsc2005.h>
+
+ #include <asm/mach/arch.h>
+ #include <asm/mach-types.h>
+@@ -43,6 +44,66 @@ static int slot1_cover_open;
+ static int slot2_cover_open;
+ static struct device *mmc_device;
+
++#define RX51_TSC2005_RESET_GPIO 94
++#define RX51_TSC2005_IRQ_GPIO 106
++
++#ifdef CONFIG_TOUCHSCREEN_TSC2005
++static struct tsc2005_platform_data tsc2005_config;
++static void rx51_tsc2005_set_reset(bool enable)
++{
++ gpio_set_value(RX51_TSC2005_RESET_GPIO, enable);
++}
++
++static struct omap2_mcspi_device_config tsc2005_mcspi_config = {
++ .turbo_mode = 0,
++ .single_channel = 1,
++};
++#endif
++
++static void __init tsc2005_set_config(void)
++{
++ const struct omap_lcd_config *conf;
++
++ conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
++ if (conf != NULL) {
++#ifdef CONFIG_TOUCHSCREEN_TSC2005
++ if (strcmp(conf->panel_name, "lph8923") == 0) {
++ tsc2005_config.ts_x_plate_ohm = 180;
++ tsc2005_config.ts_pressure_max = 2048;
++ tsc2005_config.ts_pressure_fudge = 2;
++ tsc2005_config.ts_x_max = 4096;
++ tsc2005_config.ts_x_fudge = 4;
++ tsc2005_config.ts_y_max = 4096;
++ tsc2005_config.ts_y_fudge = 7;
++ tsc2005_config.set_reset = rx51_tsc2005_set_reset;
++ } else if (strcmp(conf->panel_name, "ls041y3") == 0) {
++ tsc2005_config.ts_x_plate_ohm = 280;
++ tsc2005_config.ts_pressure_max = 2048;
++ tsc2005_config.ts_pressure_fudge = 2;
++ tsc2005_config.ts_x_max = 4096;
++ tsc2005_config.ts_x_fudge = 4;
++ tsc2005_config.ts_y_max = 4096;
++ tsc2005_config.ts_y_fudge = 7;
++ tsc2005_config.set_reset = rx51_tsc2005_set_reset;
++ } else {
++ printk(KERN_ERR "Unknown panel type, set default "
++ "touchscreen configuration\n");
++ tsc2005_config.ts_x_plate_ohm = 200;
++ }
++#endif
++ }
++}
++
++static struct omap2_mcspi_device_config mipid_mcspi_config = {
++ .turbo_mode = 0,
++ .single_channel = 1,
++};
++
++extern struct mipid_platform_data n8x0_mipid_platform_data;
++
++extern void n8x0_mipid_init(void);
++extern void n8x0_blizzard_init(void);
++
+ #define TUSB6010_ASYNC_CS 1
+ #define TUSB6010_SYNC_CS 4
+ #define TUSB6010_GPIO_INT 58
+@@ -145,12 +206,29 @@ static struct omap2_mcspi_device_config
+
+ static struct spi_board_info n800_spi_board_info[] __initdata = {
+ {
++ .modalias = "lcd_mipid",
++ .bus_num = 1,
++ .chip_select = 1,
++ .max_speed_hz = 4000000,
++ .controller_data= &mipid_mcspi_config,
++ .platform_data = &n8x0_mipid_platform_data,
++ },
++ {
+ .modalias = "p54spi",
+ .bus_num = 2,
+ .chip_select = 0,
+ .max_speed_hz = 48000000,
+ .controller_data = &p54spi_mcspi_config,
+ },
++ {
++ .modalias = "tsc2005",
++ .bus_num = 1,
++ .chip_select = 0,
++ .irq = OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),
++ .max_speed_hz = 6000000,
++ .controller_data = &tsc2005_mcspi_config,
++ .platform_data = &tsc2005_config,
++ },
+ };
+
+ #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
+@@ -781,6 +859,7 @@ static void __init n8x0_init_machine(voi
+ n8x0_cbus_init();
+
+ /* FIXME: add n810 spi devices */
++ tsc2005_set_config();
+ spi_register_board_info(n800_spi_board_info,
+ ARRAY_SIZE(n800_spi_board_info));
+ omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
+@@ -790,6 +869,8 @@ static void __init n8x0_init_machine(voi
+ i2c_register_board_info(2, n810_i2c_board_info_2,
+ ARRAY_SIZE(n810_i2c_board_info_2));
+ board_serial_init();
++ n8x0_mipid_init();
++ n8x0_blizzard_init();
+ omap_sdrc_init(NULL, NULL);
+ gpmc_onenand_init(board_onenand_data);
+ n8x0_mmc_init();
+--- /dev/null
++++ b/arch/arm/mach-omap2/board-n8x0-lcd.c
+@@ -0,0 +1,231 @@
++/*
++ * linux/arch/arm/mach-omap2/board-n8x0.c
++ *
++ * Copyright (C) 2005-2009 Nokia Corporation
++ * Author: Juha Yrjola <juha.yrjola@nokia.com>
++ *
++ * Modified from mach-omap2/board-generic.c
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License version 2 as
++ * published by the Free Software Foundation.
++ */
++
++#include <linux/clk.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++#include <linux/omapfb.h>
++
++#include <plat/lcd_mipid.h>
++#include <plat/blizzard.h>
++
++#include "../../../drivers/cbus/tahvo.h"
++
++
++struct tahvo_pwm_device {
++ struct device *dev;
++ int tahvo_7bit_backlight;
++};
++
++static struct tahvo_pwm_device *tahvo_pwm;
++
++static unsigned int tahvo_pwm_get_backlight_level(struct tahvo_pwm_device *pd)
++{
++ unsigned int mask;
++
++ if (pd->tahvo_7bit_backlight)
++ mask = 0x7f;
++ else
++ mask = 0x0f;
++ return tahvo_read_reg(pd->dev, TAHVO_REG_LEDPWMR) & mask;
++}
++
++static unsigned int tahvo_pwm_get_max_backlight_level(struct tahvo_pwm_device *pd)
++{
++ if (pd->tahvo_7bit_backlight)
++ return 0x7f;
++ return 0x0f;
++}
++
++static void tahvo_pwm_set_backlight_level(struct tahvo_pwm_device *pd, unsigned int level)
++{
++ unsigned int max_level;
++
++ max_level = tahvo_pwm_get_max_backlight_level(pd);
++ if (level > max_level)
++ level = max_level;
++ tahvo_write_reg(pd->dev, TAHVO_REG_LEDPWMR, level);
++}
++
++static int __init n8x0_tahvo_pwm_probe(struct platform_device *pdev)
++{
++ struct tahvo_pwm_device *pd;
++ unsigned int rev, id;
++
++ pd = kzalloc(sizeof(*pd), GFP_KERNEL);
++ if (WARN_ON(!pd))
++ return -ENOMEM;
++ pd->dev = &pdev->dev;
++
++ rev = tahvo_read_reg(pd->dev, TAHVO_REG_ASICR);
++ id = (rev >> 8) & 0xff;
++ if (id == 0x03) {
++ if ((rev & 0xff) >= 0x50)
++ pd->tahvo_7bit_backlight = 1;
++ } else if (id == 0x0b)
++ pd->tahvo_7bit_backlight = 1;
++
++ dev_set_drvdata(pd->dev, pd);
++ tahvo_pwm = pd;
++
++ return 0;
++}
++
++static struct platform_driver n8x0_tahvo_pwm_driver = {
++ .driver = {
++ .name = "tahvo-pwm",
++ },
++};
++
++static int __init n8x0_tahvo_pwm_init(void)
++{
++ return platform_driver_probe(&n8x0_tahvo_pwm_driver, n8x0_tahvo_pwm_probe);
++}
++fs_initcall(n8x0_tahvo_pwm_init);
++
++static int n8x0_get_backlight_level(struct mipid_platform_data *pdata)
++{
++ return tahvo_pwm_get_backlight_level(tahvo_pwm);
++}
++
++static int n8x0_get_max_backlight_level(struct mipid_platform_data *pdata)
++{
++ return tahvo_pwm_get_max_backlight_level(tahvo_pwm);
++}
++
++static void n8x0_set_backlight_level(struct mipid_platform_data *pdata, int level)
++{
++ tahvo_pwm_set_backlight_level(tahvo_pwm, level);
++}
++
++#define N8X0_BLIZZARD_POWERDOWN_GPIO 15
++
++// MIPID LCD Panel
++
++static void mipid_shutdown(struct mipid_platform_data *pdata)
++{
++ if (pdata->nreset_gpio != -1) {
++ pr_info("shutdown LCD\n");
++ gpio_set_value(pdata->nreset_gpio, 0);
++ msleep(120);
++ }
++}
++
++struct mipid_platform_data n8x0_mipid_platform_data = {
++ .shutdown = mipid_shutdown,
++ .get_bklight_level = n8x0_get_backlight_level,
++ .set_bklight_level = n8x0_set_backlight_level,
++ .get_bklight_max = n8x0_get_max_backlight_level,
++};
++
++void __init n8x0_mipid_init(void)
++{
++ const struct omap_lcd_config *conf;
++ int err;
++
++ conf = omap_get_config(OMAP_TAG_LCD, struct omap_lcd_config);
++ if (conf != NULL) {
++ n8x0_mipid_platform_data.nreset_gpio = conf->nreset_gpio;
++ n8x0_mipid_platform_data.data_lines = conf->data_lines;
++ if (conf->nreset_gpio != -1) {
++ err = gpio_request(conf->nreset_gpio, "MIPID nreset");
++ if (err) {
++ printk(KERN_ERR "N8x0 MIPID failed to request nreset GPIO %d\n",
++ conf->nreset_gpio);
++ } else {
++ err = gpio_direction_output(conf->nreset_gpio, 1);
++ if (err) {
++ printk(KERN_ERR "N8x0 MIPID failed to set nreset GPIO %d\n",
++ conf->nreset_gpio);
++ }
++ }
++ }
++ printk(KERN_INFO "N8x0 MIPID config loaded");
++ }
++ else
++ printk(KERN_INFO "N8x0 MIPID config not provided");
++}
++
++
++// Epson Blizzard LCD Controller
++
++static struct {
++ struct clk *sys_ck;
++} blizzard;
++
++static int blizzard_get_clocks(void)
++{
++ blizzard.sys_ck = clk_get(0, "osc_ck");
++ if (IS_ERR(blizzard.sys_ck)) {
++ printk(KERN_ERR "can't get Blizzard clock\n");
++ return PTR_ERR(blizzard.sys_ck);
++ }
++ return 0;
++}
++
++static unsigned long blizzard_get_clock_rate(struct device *dev)
++{
++ return clk_get_rate(blizzard.sys_ck);
++}
++
++static void blizzard_enable_clocks(int enable)
++{
++ if (enable)
++ clk_enable(blizzard.sys_ck);
++ else
++ clk_disable(blizzard.sys_ck);
++}
++
++static void blizzard_power_up(struct device *dev)
++{
++ /* Vcore to 1.475V */
++ tahvo_set_clear_reg_bits(tahvo_pwm->dev, 0x07, 0, 0xf);
++ msleep(10);
++
++ blizzard_enable_clocks(1);
++ gpio_set_value(N8X0_BLIZZARD_POWERDOWN_GPIO, 1);
++}
++
++static void blizzard_power_down(struct device *dev)
++{
++ gpio_set_value(N8X0_BLIZZARD_POWERDOWN_GPIO, 0);
++ blizzard_enable_clocks(0);
++
++ /* Vcore to 1.005V */
++ tahvo_set_clear_reg_bits(tahvo_pwm->dev, 0x07, 0xf, 0);
++}
++
++static struct blizzard_platform_data n8x0_blizzard_data = {
++ .power_up = blizzard_power_up,
++ .power_down = blizzard_power_down,
++ .get_clock_rate = blizzard_get_clock_rate,
++ .te_connected = 1,
++};
++
++void __init n8x0_blizzard_init(void)
++{
++ int r;
++
++ r = gpio_request(N8X0_BLIZZARD_POWERDOWN_GPIO, "Blizzard pd");
++ if (r < 0)
++ {
++ printk(KERN_ERR "Can't get N8x0 Blizzard powerdown GPIO %d\n", N8X0_BLIZZARD_POWERDOWN_GPIO);
++ return;
++ }
++ gpio_direction_output(N8X0_BLIZZARD_POWERDOWN_GPIO, 1);
++
++ blizzard_get_clocks();
++ omapfb_set_ctrl_platform_data(&n8x0_blizzard_data);
++
++ printk(KERN_INFO "N8x0 Blizzard initialized");
++}
+--- a/arch/arm/mach-omap2/Makefile
++++ b/arch/arm/mach-omap2/Makefile
+@@ -205,6 +205,7 @@ obj-$(CONFIG_MACH_OMAP3EVM) += board-om
+ obj-$(CONFIG_MACH_OMAP3_PANDORA) += board-omap3pandora.o
+ obj-$(CONFIG_MACH_OMAP_3430SDP) += board-3430sdp.o
+ obj-$(CONFIG_MACH_NOKIA_N8X0) += board-n8x0.o
++obj-$(CONFIG_MACH_NOKIA_N8X0) += board-n8x0-lcd.o
+ obj-$(CONFIG_MACH_NOKIA_RM680) += board-rm680.o \
+ sdram-nokia.o
+ obj-$(CONFIG_MACH_NOKIA_RX51) += board-rx51.o \
--- /dev/null
+--- a/drivers/video/omap/dispc.c
++++ b/drivers/video/omap/dispc.c
+@@ -923,14 +923,14 @@ static int get_dss_clocks(void)
+ return PTR_ERR(dispc.dss_ick);
+ }
+
+- dispc.dss1_fck = clk_get(&dispc.fbdev->dssdev->dev, "fck");
++ dispc.dss1_fck = clk_get(&dispc.fbdev->dssdev->dev, "dss1_fck");
+ if (IS_ERR(dispc.dss1_fck)) {
+ dev_err(dispc.fbdev->dev, "can't get dss1_fck\n");
+ clk_put(dispc.dss_ick);
+ return PTR_ERR(dispc.dss1_fck);
+ }
+
+- dispc.dss_54m_fck = clk_get(&dispc.fbdev->dssdev->dev, "tv_clk");
++ dispc.dss_54m_fck = clk_get(&dispc.fbdev->dssdev->dev, "dss_54m_fck");
+ if (IS_ERR(dispc.dss_54m_fck)) {
+ dev_err(dispc.fbdev->dev, "can't get tv_fck\n");
+ clk_put(dispc.dss_ick);
+--- a/drivers/video/omap/rfbi.c
++++ b/drivers/video/omap/rfbi.c
+@@ -90,7 +90,7 @@ static int rfbi_get_clocks(void)
+ return PTR_ERR(rfbi.dss_ick);
+ }
+
+- rfbi.dss1_fck = clk_get(&rfbi.fbdev->dssdev->dev, "fck");
++ rfbi.dss1_fck = clk_get(&rfbi.fbdev->dssdev->dev, "dss1_fck");
+ if (IS_ERR(rfbi.dss1_fck)) {
+ dev_err(rfbi.fbdev->dev, "can't get dss1_fck\n");
+ clk_put(rfbi.dss_ick);
--- /dev/null
+--- a/arch/arm/mach-omap2/omap_hwmod.c
++++ b/arch/arm/mach-omap2/omap_hwmod.c
+@@ -146,6 +146,8 @@
+ #include <plat/omap_hwmod.h>
+ #include <plat/prcm.h>
+
++#include <asm/mach-types.h>
++
+ #include "cm2xxx_3xxx.h"
+ #include "cminst44xx.h"
+ #include "prm2xxx_3xxx.h"
+@@ -1769,6 +1771,16 @@ static int _setup(struct omap_hwmod *oh,
+
+ oh->_state = _HWMOD_STATE_INITIALIZED;
+
++ if (machine_is_nokia770() ||
++ machine_is_nokia_n800() ||
++ machine_is_nokia_n810() ||
++ machine_is_nokia_n810_wimax()) {
++ /* Nokia N-series workaround: Don't reset any hwmod. Some drivers expect
++ * the NOLO bootloader initializations to be effective. */
++ oh->flags |= HWMOD_INIT_NO_RESET;
++ printk_once(KERN_INFO "Nokia N-series HWMOD_INIT_NO_RESET workaround enabled\n");
++ }
++
+ /*
+ * In the case of hwmod with hardreset that should not be
+ * de-assert at boot time, we have to keep the module
--- /dev/null
+From 63e56392b9024aceb610d7b4e1979e2d2cebd217 Mon Sep 17 00:00:00 2001
+From: Marat Radchenko <marat@slonopotamus.org>
+Date: Tue, 18 Oct 2011 21:48:23 +0400
+Subject: [PATCH 1/2] TSC2301 driver (touchscreen and keypad)
+
+This patch adds support for TSC2301 touchscreen/keypad/audio chip found on Nokia N800.
+Touchscreen and keypad are fully functional, audio part only provides power management.
+---
+ drivers/input/keyboard/Kconfig | 6 +
+ drivers/input/keyboard/Makefile | 1 +
+ drivers/input/keyboard/tsc2301_kp.c | 475 +++++++++++++++
+ drivers/input/touchscreen/Kconfig | 6 +
+ drivers/input/touchscreen/Makefile | 1 +
+ drivers/input/touchscreen/tsc2301_ts.c | 676 +++++++++++++++++++++
+ drivers/spi/Kconfig | 22 +
+ drivers/spi/Makefile | 3 +
+ drivers/spi/tsc2301-core.c | 297 ++++++++++
+ drivers/spi/tsc2301-mixer.c | 1003 ++++++++++++++++++++++++++++++++
+ include/linux/spi/tsc2301.h | 208 +++++++
+ 11 files changed, 2698 insertions(+), 0 deletions(-)
+ create mode 100644 drivers/input/keyboard/tsc2301_kp.c
+ create mode 100644 drivers/input/touchscreen/tsc2301_ts.c
+ create mode 100644 drivers/spi/tsc2301-core.c
+ create mode 100644 drivers/spi/tsc2301-mixer.c
+ create mode 100644 include/linux/spi/tsc2301.h
+
+--- a/drivers/input/keyboard/Kconfig
++++ b/drivers/input/keyboard/Kconfig
+@@ -547,6 +547,12 @@ config KEYBOARD_TNETV107X
+ To compile this driver as a module, choose M here: the
+ module will be called tnetv107x-keypad.
+
++config KEYBOARD_TSC2301
++ tristate "TSC2301 keypad support"
++ depends on SPI_TSC2301
++ help
++ Say Y here for if you are using the keypad features of TSC2301.
++
+ config KEYBOARD_TWL4030
+ tristate "TI TWL4030/TWL5030/TPS659x0 keypad support"
+ depends on TWL4030_CORE
+--- a/drivers/input/keyboard/Makefile
++++ b/drivers/input/keyboard/Makefile
+@@ -49,6 +49,7 @@ obj-$(CONFIG_KEYBOARD_SUNKBD) += sunkbd
+ obj-$(CONFIG_KEYBOARD_TC3589X) += tc3589x-keypad.o
+ obj-$(CONFIG_KEYBOARD_TEGRA) += tegra-kbc.o
+ obj-$(CONFIG_KEYBOARD_TNETV107X) += tnetv107x-keypad.o
++obj-$(CONFIG_KEYBOARD_TSC2301) += tsc2301_kp.o
+ obj-$(CONFIG_KEYBOARD_TWL4030) += twl4030_keypad.o
+ obj-$(CONFIG_KEYBOARD_XTKBD) += xtkbd.o
+ obj-$(CONFIG_KEYBOARD_W90P910) += w90p910_keypad.o
+--- /dev/null
++++ b/drivers/input/keyboard/tsc2301_kp.c
+@@ -0,0 +1,475 @@
++/*
++ * TSC2301 keypad driver
++ *
++ * Copyright (C) 2005-2006 Nokia Corporation
++ *
++ * Written by Jarkko Oikarinen
++ * Rewritten by Juha Yrjola <juha.yrjola@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/input.h>
++#include <linux/interrupt.h>
++#include <linux/irq.h>
++#include <linux/delay.h>
++#include <linux/spi/spi.h>
++
++#include <linux/spi/tsc2301.h>
++
++#define TSC2301_KEYBOARD_PRODUCT_ID 0x0051
++#define TSC2301_KEYBOARD_PRODUCT_VERSION 0x0001
++#define TSC2301_DEBOUNCE_TIME_2MS 0x0000
++#define TSC2301_DEBOUNCE_TIME_10MS 0x0800
++#define TSC2301_DEBOUNCE_TIME_20MS 0x1000
++#define TSC2301_DEBOUNCE_TIME_50MS 0x1800
++#define TSC2301_DEBOUNCE_TIME_60MS 0x2000
++#define TSC2301_DEBOUNCE_TIME_80MS 0x2800
++#define TSC2301_DEBOUNCE_TIME_100MS 0x3000
++#define TSC2301_DEBOUNCE_TIME_120MS 0x3800
++
++#define TSC2301_DEBOUNCE_TIME TSC2301_DEBOUNCE_TIME_20MS
++
++#define TSC2301_RELEASE_TIMEOUT 50
++
++struct tsc2301_kp {
++ struct input_dev *idev;
++ char phys[32];
++ spinlock_t lock;
++ struct mutex mutex;
++ struct timer_list timer;
++ u16 keys_pressed;
++ unsigned pending:1;
++ unsigned user_disabled:1;
++ unsigned disable_depth;
++
++ struct spi_transfer read_xfer[4];
++ struct spi_message read_msg;
++
++ u16 data;
++ u16 mask;
++
++ int irq;
++ s16 keymap[16];
++};
++
++static inline int tsc2301_kp_disabled(struct tsc2301 *tsc)
++{
++ return tsc->kp->disable_depth != 0;
++}
++
++static void tsc2301_kp_send_key_events(struct tsc2301 *tsc,
++ u16 prev_state,
++ u16 new_state)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++ u16 common, released, pressed;
++ int i;
++
++ common = prev_state & new_state;
++ released = common ^ prev_state;
++ pressed = common ^ new_state;
++ if (!released && !pressed)
++ return;
++ for (i = 0; i < 16 && (released || pressed); i++) {
++ if (released & 1) {
++ dev_dbg(&tsc->spi->dev, "key %d released\n", i);
++ input_report_key(kp->idev, kp->keymap[i], 0);
++ }
++ released >>= 1;
++ if (pressed & 1) {
++ dev_dbg(&tsc->spi->dev, "key %d pressed\n", i);
++ input_report_key(kp->idev, kp->keymap[i], 1);
++ }
++ pressed >>= 1;
++ }
++ input_sync(kp->idev);
++}
++
++static inline void _filter_out(struct tsc2301 *tsc, u16 prev_state,
++ u16 *new_state, int row1, int row2, u8 rect_pat)
++{
++ u16 mask;
++
++ mask = (rect_pat << (row1 * 4)) | (rect_pat << (row2 * 4));
++ mask &= ~prev_state;
++ *new_state &= ~mask;
++ dev_dbg(&tsc->spi->dev, "filtering ghost keys %02x\n", mask);
++}
++
++static void tsc2301_filter_ghost_keys(struct tsc2301 *tsc, u16 prev_state,
++ u16 *new_state)
++{
++ int row1, row2;
++ u16 key_map;
++ u16 row1_map;
++ static const u8 rect_pat[] = {
++ 0x3, 0x5, 0x9, 0x6, 0xa, 0xc, 0,
++ };
++
++ key_map = *new_state;
++ for (row1 = 0; row1 < 4; row1++) {
++ row1_map = (key_map >> (row1 * 4)) & 0xf;
++ if (!row1_map)
++ continue;
++ for (row2 = row1 + 1; row2 < 4; row2++) {
++ u16 rect_map = (key_map >> (row2 * 4)) & 0xf;
++ const u8 *rp;
++
++ rect_map &= row1_map;
++ if (!rect_map)
++ continue;
++ for (rp = rect_pat; *rp; rp++)
++ if ((rect_map & *rp) == *rp)
++ _filter_out(tsc, prev_state, new_state,
++ row1, row2, *rp);
++ }
++ }
++}
++
++static void tsc2301_kp_timer(unsigned long arg)
++{
++ struct tsc2301 *tsc = (void *) arg;
++ struct tsc2301_kp *kp = tsc->kp;
++ unsigned long flags;
++
++ tsc2301_kp_send_key_events(tsc, kp->keys_pressed, 0);
++ spin_lock_irqsave(&kp->lock, flags);
++ kp->keys_pressed = 0;
++ spin_unlock_irqrestore(&kp->lock, flags);
++}
++
++static void tsc2301_kp_rx(void *arg)
++{
++ struct tsc2301 *tsc = arg;
++ struct tsc2301_kp *kp = tsc->kp;
++ unsigned long flags;
++ u16 kp_data;
++
++ kp_data = kp->data;
++ dev_dbg(&tsc->spi->dev, "KP data %04x\n", kp_data);
++
++ tsc2301_filter_ghost_keys(tsc, kp->keys_pressed, &kp_data);
++ tsc2301_kp_send_key_events(tsc, kp->keys_pressed, kp_data);
++ spin_lock_irqsave(&kp->lock, flags);
++ kp->keys_pressed = kp_data;
++ kp->pending = 0;
++ spin_unlock_irqrestore(&kp->lock, flags);
++}
++
++static irqreturn_t tsc2301_kp_irq_handler(int irq, void *dev_id)
++{
++ struct tsc2301 *tsc = dev_id;
++ struct tsc2301_kp *kp = tsc->kp;
++ unsigned long flags;
++ int r;
++
++ spin_lock_irqsave(&kp->lock, flags);
++ if (tsc2301_kp_disabled(tsc)) {
++ spin_unlock_irqrestore(&kp->lock, flags);
++ return IRQ_HANDLED;
++ }
++ kp->pending = 1;
++ spin_unlock_irqrestore(&kp->lock, flags);
++ mod_timer(&kp->timer,
++ jiffies + msecs_to_jiffies(TSC2301_RELEASE_TIMEOUT));
++ r = spi_async(tsc->spi, &tsc->kp->read_msg);
++ if (r)
++ dev_err(&tsc->spi->dev, "kp: spi_async() failed");
++ return IRQ_HANDLED;
++}
++
++static void tsc2301_kp_start_scan(struct tsc2301 *tsc)
++{
++ tsc2301_write_reg(tsc, TSC2301_REG_KPMASK, tsc->kp->mask);
++ tsc2301_write_reg(tsc, TSC2301_REG_KEY, TSC2301_DEBOUNCE_TIME);
++}
++
++static void tsc2301_kp_stop_scan(struct tsc2301 *tsc)
++{
++ tsc2301_write_reg(tsc, TSC2301_REG_KEY, 1 << 14);
++}
++
++/* Must be called with the mutex held */
++static void tsc2301_kp_enable(struct tsc2301 *tsc)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++ unsigned long flags;
++
++ spin_lock_irqsave(&kp->lock, flags);
++ BUG_ON(!tsc2301_kp_disabled(tsc));
++ if (--kp->disable_depth != 0) {
++ spin_unlock_irqrestore(&kp->lock, flags);
++ return;
++ }
++ spin_unlock_irqrestore(&kp->lock, flags);
++
++ irq_set_irq_type(kp->irq, IRQ_TYPE_EDGE_FALLING);
++ tsc2301_kp_start_scan(tsc);
++ enable_irq(kp->irq);
++}
++
++/* Must be called with the mutex held */
++static int tsc2301_kp_disable(struct tsc2301 *tsc, int release_keys)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++ unsigned long flags;
++
++ spin_lock_irqsave(&kp->lock, flags);
++ if (kp->disable_depth++ != 0) {
++ spin_unlock_irqrestore(&kp->lock, flags);
++ goto out;
++ }
++ disable_irq_nosync(kp->irq);
++ irq_set_irq_type(kp->irq, IRQ_TYPE_NONE);
++ spin_unlock_irqrestore(&kp->lock, flags);
++
++ while (kp->pending) {
++ msleep(1);
++ }
++
++ tsc2301_kp_stop_scan(tsc);
++out:
++ if (!release_keys)
++ del_timer(&kp->timer); /* let timeout release keys */
++
++ return 0;
++}
++
++/* The following workaround is needed for a HW bug triggered by the
++ * following:
++ * 1. keep any key pressed
++ * 2. disable keypad
++ * 3. release all keys
++ * 4. reenable keypad
++ * 5. disable touch screen controller
++ *
++ * After this the keypad scanner will get stuck in busy state and won't
++ * report any interrupts for further keypresses. One way to recover is to
++ * restart the keypad scanner whenever we enable / disable the
++ * touchscreen controller.
++ */
++void tsc2301_kp_restart(struct tsc2301 *tsc)
++{
++ if (!tsc2301_kp_disabled(tsc)) {
++ tsc2301_kp_start_scan(tsc);
++ }
++}
++
++static ssize_t tsc2301_kp_disable_show(struct device *dev,
++ struct device_attribute *attr, char *buf)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++
++ return sprintf(buf, "%u\n", tsc2301_kp_disabled(tsc) ? 1 : 0);
++}
++
++static ssize_t tsc2301_kp_disable_store(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++ struct tsc2301_kp *kp = tsc->kp;
++ char *endp;
++ int i;
++
++ i = simple_strtoul(buf, &endp, 10);
++ i = i ? 1 : 0;
++
++ mutex_lock(&kp->mutex);
++ if (i == kp->user_disabled) {
++ mutex_unlock(&kp->mutex);
++ return count;
++ }
++ kp->user_disabled = i;
++
++ if (i)
++ tsc2301_kp_disable(tsc, 1);
++ else
++ tsc2301_kp_enable(tsc);
++ mutex_unlock(&kp->mutex);
++
++ return count;
++}
++
++static DEVICE_ATTR(disable_kp, 0664, tsc2301_kp_disable_show,
++ tsc2301_kp_disable_store);
++
++static const u16 tsc2301_kp_read_data = 0x8000 | TSC2301_REG_KPDATA;
++
++static void tsc2301_kp_setup_spi_xfer(struct tsc2301 *tsc)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++ struct spi_message *m = &kp->read_msg;
++ struct spi_transfer *x = &kp->read_xfer[0];
++
++ spi_message_init(&kp->read_msg);
++
++ x->tx_buf = &tsc2301_kp_read_data;
++ x->len = 2;
++ spi_message_add_tail(x, m);
++ x++;
++
++ x->rx_buf = &kp->data;
++ x->len = 2;
++ spi_message_add_tail(x, m);
++
++ m->complete = tsc2301_kp_rx;
++ m->context = tsc;
++}
++
++#ifdef CONFIG_PM
++int tsc2301_kp_suspend(struct tsc2301 *tsc)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++
++ mutex_lock(&kp->mutex);
++ tsc2301_kp_disable(tsc, 1);
++ mutex_unlock(&kp->mutex);
++ return 0;
++}
++
++void tsc2301_kp_resume(struct tsc2301 *tsc)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++
++ mutex_lock(&kp->mutex);
++ tsc2301_kp_enable(tsc);
++ mutex_unlock(&kp->mutex);
++}
++#endif
++
++int __devinit tsc2301_kp_init(struct tsc2301 *tsc,
++ struct tsc2301_platform_data *pdata)
++{
++ struct input_dev *idev;
++ struct tsc2301_kp *kp;
++ int r, i;
++ u16 mask;
++
++ if (pdata->keyb_int < 0) {
++ dev_err(&tsc->spi->dev, "need kbirq");
++ return -EINVAL;
++ }
++
++ kp = kzalloc(sizeof(*kp), GFP_KERNEL);
++ if (kp == NULL)
++ return -ENOMEM;
++ tsc->kp = kp;
++
++ kp->irq = pdata->keyb_int;
++ spin_lock_init(&kp->lock);
++ mutex_init(&kp->mutex);
++
++ init_timer(&kp->timer);
++ kp->timer.data = (unsigned long) tsc;
++ kp->timer.function = tsc2301_kp_timer;
++
++ idev = input_allocate_device();
++ if (idev == NULL) {
++ r = -ENOMEM;
++ goto err1;
++ }
++ if (pdata->keyb_name)
++ idev->name = pdata->keyb_name;
++ else
++ idev->name = "TSC2301 keypad";
++ snprintf(kp->phys, sizeof(kp->phys), "%s/input-kp", dev_name(&tsc->spi->dev));
++ idev->phys = kp->phys;
++
++ mask = 0;
++ idev->evbit[0] = BIT(EV_KEY);
++ for (i = 0; i < 16; i++) {
++ if (pdata->keymap[i] > 0) {
++ set_bit(pdata->keymap[i], idev->keybit);
++ kp->keymap[i] = pdata->keymap[i];
++ } else {
++ kp->keymap[i] = -1;
++ mask |= 1 << i;
++ }
++ }
++
++ if (pdata->kp_rep)
++ set_bit(EV_REP, idev->evbit);
++
++ kp->idev = idev;
++
++ tsc2301_kp_setup_spi_xfer(tsc);
++
++ r = device_create_file(&tsc->spi->dev, &dev_attr_disable_kp);
++ if (r < 0)
++ goto err2;
++
++ tsc2301_kp_start_scan(tsc);
++
++ /* IRQ mode 0 is faulty, it can cause the KBIRQ to get stuck.
++ * Mode 2 deasserts the IRQ at:
++ * - HW or SW reset
++ * - Setting SCS flag in REG_KEY register
++ * - Releasing all keys
++ * - Reading the REG_KPDATA
++ */
++ tsc2301_write_kbc(tsc, 2);
++
++ tsc2301_write_reg(tsc, TSC2301_REG_KPMASK, mask);
++ kp->mask = mask;
++
++ irq_set_irq_type(kp->irq, IRQ_TYPE_EDGE_FALLING);
++
++ r = request_irq(kp->irq, tsc2301_kp_irq_handler, IRQF_SAMPLE_RANDOM,
++ "tsc2301-kp", tsc);
++ if (r < 0) {
++ dev_err(&tsc->spi->dev, "unable to get kbirq IRQ");
++ goto err3;
++ }
++ irq_set_irq_wake(kp->irq, 1);
++
++ /* We need to read the register once..? */
++ tsc2301_read_reg(tsc, TSC2301_REG_KPDATA);
++
++ r = input_register_device(idev);
++ if (r < 0) {
++ dev_err(&tsc->spi->dev, "can't register keypad device\n");
++ goto err4;
++ }
++
++ return 0;
++
++err4:
++ free_irq(kp->irq, tsc);
++err3:
++ tsc2301_kp_stop_scan(tsc);
++ device_remove_file(&tsc->spi->dev, &dev_attr_disable_kp);
++err2:
++ input_free_device(kp->idev);
++err1:
++ kfree(kp);
++ return r;
++}
++
++void __devexit tsc2301_kp_exit(struct tsc2301 *tsc)
++{
++ struct tsc2301_kp *kp = tsc->kp;
++
++ tsc2301_kp_disable(tsc, 1);
++ input_unregister_device(kp->idev);
++ free_irq(kp->irq, tsc);
++ device_remove_file(&tsc->spi->dev, &dev_attr_disable_kp);
++
++ kfree(kp);
++}
+--- a/drivers/input/touchscreen/Kconfig
++++ b/drivers/input/touchscreen/Kconfig
+@@ -726,6 +726,12 @@ config TOUCHSCREEN_TSC2007
+ To compile this driver as a module, choose M here: the
+ module will be called tsc2007.
+
++config TOUCHSCREEN_TSC2301
++ tristate "TSC2301 touchscreen support"
++ depends on SPI_TSC2301
++ help
++ Say Y here for if you are using the touchscreen features of TSC2301.
++
+ config TOUCHSCREEN_W90X900
+ tristate "W90P910 touchscreen driver"
+ depends on HAVE_CLK
+--- a/drivers/input/touchscreen/Makefile
++++ b/drivers/input/touchscreen/Makefile
+@@ -52,6 +52,7 @@ obj-$(CONFIG_TOUCHSCREEN_TOUCHWIN) += to
+ obj-$(CONFIG_TOUCHSCREEN_TSC_SERIO) += tsc40.o
+ obj-$(CONFIG_TOUCHSCREEN_TSC2005) += tsc2005.o
+ obj-$(CONFIG_TOUCHSCREEN_TSC2007) += tsc2007.o
++obj-$(CONFIG_TOUCHSCREEN_TSC2301) += tsc2301_ts.o
+ obj-$(CONFIG_TOUCHSCREEN_UCB1400) += ucb1400_ts.o
+ obj-$(CONFIG_TOUCHSCREEN_WACOM_W8001) += wacom_w8001.o
+ obj-$(CONFIG_TOUCHSCREEN_WM831X) += wm831x-ts.o
+--- /dev/null
++++ b/drivers/input/touchscreen/tsc2301_ts.c
+@@ -0,0 +1,676 @@
++/*
++ * TSC2301 touchscreen driver
++ *
++ * Copyright (C) 2005-2008 Nokia Corporation
++ *
++ * Written by Jarkko Oikarinen, Imre Deak and Juha Yrjola
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/module.h>
++#include <linux/input.h>
++#include <linux/interrupt.h>
++#include <linux/delay.h>
++#include <linux/spi/spi.h>
++
++#include <linux/spi/tsc2301.h>
++
++/**
++ * The touchscreen interface operates as follows:
++ *
++ * Initialize:
++ * Request access to GPIO103 (DAV)
++ * tsc2301_ts_irq_handler will trigger when DAV line goes down
++ *
++ * 1) Pen is pressed against touchscreeen
++ * 2) TSC2301 performs AD conversion
++ * 3) After the conversion is done TSC2301 drives DAV line down
++ * 4) GPIO IRQ is received and tsc2301_ts_irq_handler is called
++ * 5) tsc2301_ts_irq_handler queues up an spi transfer to fetch
++ * the x, y, z1, z2 values
++ * 6) SPI framework calls tsc2301_ts_rx after the coordinates are read
++ * 7) When the penup_timer expires, there have not been DAV interrupts
++ * during the last 20ms which means the pen has been lifted.
++ */
++
++
++#define TSC2301_TOUCHSCREEN_PRODUCT_ID 0x0052
++#define TSC2301_TOUCHSCREEN_PRODUCT_VERSION 0x0001
++
++#define TSC2301_TS_PENUP_TIME 20
++
++#define TSC2301_ADCREG_CONVERSION_CTRL_BY_TSC2301 0x8000
++#define TSC2301_ADCREG_CONVERSION_CTRL_BY_HOST 0x0000
++
++#define TSC2301_ADCREG_FUNCTION_NONE 0x0000
++#define TSC2301_ADCREG_FUNCTION_XY 0x0400
++#define TSC2301_ADCREG_FUNCTION_XYZ 0x0800
++#define TSC2301_ADCREG_FUNCTION_X 0x0C00
++#define TSC2301_ADCREG_FUNCTION_Y 0x1000
++#define TSC2301_ADCREG_FUNCTION_Z 0x1400
++#define TSC2301_ADCREG_FUNCTION_DAT1 0x1800
++#define TSC2301_ADCREG_FUNCTION_DAT2 0x1C00
++#define TSC2301_ADCREG_FUNCTION_AUX1 0x2000
++#define TSC2301_ADCREG_FUNCTION_AUX2 0x2400
++#define TSC2301_ADCREG_FUNCTION_TEMP 0x2800
++
++#define TSC2301_ADCREG_RESOLUTION_8BIT 0x0100
++#define TSC2301_ADCREG_RESOLUTION_10BIT 0x0200
++#define TSC2301_ADCREG_RESOLUTION_12BIT 0x0300
++
++#define TSC2301_ADCREG_AVERAGING_NONE 0x0000
++#define TSC2301_ADCREG_AVERAGING_4AVG 0x0040
++#define TSC2301_ADCREG_AVERAGING_8AVG 0x0080
++#define TSC2301_ADCREG_AVERAGING_16AVG 0x00C0
++
++#define TSC2301_ADCREG_CLOCK_8MHZ 0x0000
++#define TSC2301_ADCREG_CLOCK_4MHZ 0x0010
++#define TSC2301_ADCREG_CLOCK_2MHZ 0x0020
++#define TSC2301_ADCREG_CLOCK_1MHZ 0x0030
++
++#define TSC2301_ADCREG_VOLTAGE_STAB_0US 0x0000
++#define TSC2301_ADCREG_VOLTAGE_STAB_100US 0x0002
++#define TSC2301_ADCREG_VOLTAGE_STAB_500US 0x0004
++#define TSC2301_ADCREG_VOLTAGE_STAB_1MS 0x0006
++#define TSC2301_ADCREG_VOLTAGE_STAB_5MS 0x0008
++#define TSC2301_ADCREG_VOLTAGE_STAB_10MS 0x000A
++#define TSC2301_ADCREG_VOLTAGE_STAB_50MS 0x000C
++#define TSC2301_ADCREG_VOLTAGE_STAB_100MS 0x000E
++
++#define TSC2301_ADCREG_STOP_CONVERSION 0x4000
++
++#define MAX_12BIT ((1 << 12) - 1)
++
++#define TS_RECT_SIZE 8
++#define TSF_MIN_Z1 100
++#define TSF_MAX_Z2 4000
++
++#define TSF_SAMPLES 4
++
++struct ts_filter {
++ int sample_cnt;
++
++ int avg_x;
++ int avg_y;
++ int avg_z1;
++ int avg_z2;
++};
++
++struct ts_coords {
++ u16 x;
++ u16 y;
++ u16 z1;
++ u16 z2;
++};
++
++struct tsc2301_ts {
++ struct input_dev *idev;
++ char phys[32];
++ struct timer_list penup_timer;
++ struct mutex mutex;
++
++ struct spi_transfer read_xfer[2];
++ struct spi_message read_msg;
++ struct ts_coords *coords;
++
++ struct ts_filter filter;
++
++ int hw_avg_max;
++ u16 x;
++ u16 y;
++ u16 p;
++
++ u16 x_plate_ohm;
++ int stab_time;
++ int max_pressure;
++ int touch_pressure;
++
++ u8 event_sent;
++ u8 pen_down;
++ u8 disabled;
++ u8 disable_depth;
++
++ int hw_flags;
++ int irq;
++};
++
++
++static const u16 tsc2301_ts_read_data = 0x8000 | TSC2301_REG_X;
++
++static int tsc2301_ts_check_config(struct tsc2301_ts *ts, int *hw_flags)
++{
++ int flags;
++
++ flags = 0;
++ switch (ts->hw_avg_max) {
++ case 0:
++ flags |= TSC2301_ADCREG_AVERAGING_NONE;
++ break;
++ case 4:
++ flags |= TSC2301_ADCREG_AVERAGING_4AVG;
++ break;
++ case 8:
++ flags |= TSC2301_ADCREG_AVERAGING_8AVG;
++ break;
++ case 16:
++ flags |= TSC2301_ADCREG_AVERAGING_16AVG;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ switch (ts->stab_time) {
++ case 0:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_0US;
++ break;
++ case 100:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_100US;
++ break;
++ case 500:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_500US;
++ break;
++ case 1000:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_1MS;
++ break;
++ case 5000:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_5MS;
++ break;
++ case 10000:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_10MS;
++ break;
++ case 50000:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_50MS;
++ break;
++ case 100000:
++ flags |= TSC2301_ADCREG_VOLTAGE_STAB_100MS;
++ break;
++ default:
++ return -EINVAL;
++ }
++
++ *hw_flags = flags;
++ return 0;
++}
++
++/*
++ * This odd three-time initialization is to work around a bug in TSC2301.
++ * See TSC2301 errata for details.
++ */
++static int tsc2301_ts_configure(struct tsc2301 *tsc, int flags)
++{
++ struct spi_transfer xfer[5];
++ struct spi_transfer *x;
++ struct spi_message m;
++ int i;
++ u16 val1, val2, val3;
++ u16 data[10];
++
++ val1 = TSC2301_ADCREG_CONVERSION_CTRL_BY_HOST |
++ TSC2301_ADCREG_STOP_CONVERSION |
++ TSC2301_ADCREG_FUNCTION_NONE |
++ TSC2301_ADCREG_RESOLUTION_12BIT |
++ TSC2301_ADCREG_AVERAGING_NONE |
++ TSC2301_ADCREG_CLOCK_2MHZ |
++ TSC2301_ADCREG_VOLTAGE_STAB_100MS;
++
++ val2 = TSC2301_ADCREG_CONVERSION_CTRL_BY_HOST |
++ TSC2301_ADCREG_FUNCTION_XYZ |
++ TSC2301_ADCREG_RESOLUTION_12BIT |
++ TSC2301_ADCREG_AVERAGING_16AVG |
++ TSC2301_ADCREG_CLOCK_1MHZ |
++ TSC2301_ADCREG_VOLTAGE_STAB_100MS;
++
++ /* Averaging and voltage stabilization settings in flags */
++ val3 = TSC2301_ADCREG_CONVERSION_CTRL_BY_TSC2301 |
++ TSC2301_ADCREG_FUNCTION_XYZ |
++ TSC2301_ADCREG_RESOLUTION_12BIT |
++ TSC2301_ADCREG_CLOCK_2MHZ |
++ flags;
++
++ /* Now we prepare the command for transferring */
++ data[0] = TSC2301_REG_ADC;
++ data[1] = val1;
++ data[2] = TSC2301_REG_ADC;
++ data[3] = val2;
++ data[4] = TSC2301_REG_ADC;
++ data[5] = val3;
++ data[6] = TSC2301_REG_REF;
++ data[7] = 1 << 4 | 1 << 2 | 1; /* intref, 100uS settl, 2.5V ref */
++ data[8] = TSC2301_REG_CONFIG;
++ data[9] = 3 << 3 | 2 << 0; /* 340uS pre-chrg, 544us delay */
++
++ spi_message_init(&m);
++ m.spi = tsc->spi;
++
++ memset(xfer, 0, sizeof(xfer));
++ x = &xfer[0];
++
++ for (i = 0; i < 10; i += 2) {
++ x->tx_buf = &data[i];
++ x->len = 4;
++ if (i != 8)
++ x->cs_change = 1;
++ spi_message_add_tail(x, &m);
++ x++;
++ }
++ spi_sync(m.spi, &m);
++
++ return 0;
++}
++
++static void tsc2301_ts_start_scan(struct tsc2301 *tsc)
++{
++ tsc2301_ts_configure(tsc, tsc->ts->hw_flags);
++ tsc2301_kp_restart(tsc);
++}
++
++static void tsc2301_ts_stop_scan(struct tsc2301 *tsc)
++{
++ tsc2301_write_reg(tsc, TSC2301_REG_ADC, TSC2301_ADCREG_STOP_CONVERSION);
++ tsc2301_kp_restart(tsc);
++}
++
++static void update_pen_state(struct tsc2301_ts *ts, int x, int y, int pressure)
++{
++ if (pressure) {
++ input_report_abs(ts->idev, ABS_X, x);
++ input_report_abs(ts->idev, ABS_Y, y);
++ input_report_abs(ts->idev, ABS_PRESSURE, pressure);
++ if (!ts->pen_down)
++ input_report_key(ts->idev, BTN_TOUCH, 1);
++ ts->pen_down = 1;
++ } else {
++ input_report_abs(ts->idev, ABS_PRESSURE, 0);
++ if (ts->pen_down)
++ input_report_key(ts->idev, BTN_TOUCH, 0);
++ ts->pen_down = 0;
++ }
++
++ input_sync(ts->idev);
++
++#ifdef VERBOSE
++ dev_dbg(&tsc->spi->dev, "x %4d y %4d p %4d\n", x, y, pressure);
++#endif
++}
++
++static int filter(struct tsc2301_ts *ts, int x, int y, int z1, int z2)
++{
++ int inside_rect, pressure_limit, Rt;
++ struct ts_filter *tsf = &ts->filter;
++
++ /* validate pressure and position */
++ if (x > MAX_12BIT || y > MAX_12BIT)
++ return 0;
++
++ /* skip coords if the pressure-components are out of range */
++ if (z1 < TSF_MIN_Z1 || z2 > TSF_MAX_Z2)
++ return 0;
++
++ /* Use the x,y,z1,z2 directly on the first "pen down" event */
++ if (ts->event_sent) {
++ tsf->avg_x += x;
++ tsf->avg_y += y;
++ tsf->avg_z1 += z1;
++ tsf->avg_z2 += z2;
++
++ if (++tsf->sample_cnt < TSF_SAMPLES)
++ return 0;
++ x = tsf->avg_x / TSF_SAMPLES;
++ y = tsf->avg_y / TSF_SAMPLES;
++ z1 = tsf->avg_z1 / TSF_SAMPLES;
++ z2 = tsf->avg_z2 / TSF_SAMPLES;
++ }
++ tsf->sample_cnt = 0;
++ tsf->avg_x = 0;
++ tsf->avg_y = 0;
++ tsf->avg_z1 = 0;
++ tsf->avg_z2 = 0;
++
++ pressure_limit = ts->event_sent? ts->max_pressure: ts->touch_pressure;
++
++ /* z1 is always at least 100: */
++ Rt = x * (z2 - z1) / z1;
++ Rt = Rt * ts->x_plate_ohm / 4096;
++ if (Rt > pressure_limit)
++ return 0;
++
++ /* discard the event if it still is within the previous rect - unless
++ * if the pressure is harder, but then use previous x,y position */
++ inside_rect = (
++ x > (int)ts->x - TS_RECT_SIZE && x < (int)ts->x + TS_RECT_SIZE &&
++ y > (int)ts->y - TS_RECT_SIZE && y < (int)ts->y + TS_RECT_SIZE);
++
++ if (!ts->event_sent || !inside_rect) {
++ ts->x = x;
++ ts->y = y;
++ ts->p = Rt;
++ return 1;
++ } else if (Rt < ts->p) {
++ ts->p = Rt;
++ return 1;
++ }
++ return 0;
++}
++
++/*
++ * This procedure is called by the SPI framework after the coordinates
++ * have been read from TSC2301
++ */
++static void tsc2301_ts_rx(void *arg)
++{
++ struct tsc2301 *tsc = arg;
++ struct tsc2301_ts *ts = tsc->ts;
++ int send_event;
++ int x, y, z1, z2;
++
++ x = ts->coords->x;
++ y = ts->coords->y;
++ z1 = ts->coords->z1;
++ z2 = ts->coords->z2;
++
++ send_event = filter(ts, x, y, z1, z2);
++ if (send_event) {
++ update_pen_state(ts, ts->x, ts->y, ts->p);
++ ts->event_sent = 1;
++ }
++
++ mod_timer(&ts->penup_timer,
++ jiffies + msecs_to_jiffies(TSC2301_TS_PENUP_TIME));
++}
++
++/*
++ * Timer is called TSC2301_TS_PENUP_TIME after pen is up
++ */
++static void tsc2301_ts_timer_handler(unsigned long data)
++{
++ struct tsc2301 *tsc = (struct tsc2301 *)data;
++ struct tsc2301_ts *ts = tsc->ts;
++
++ if (ts->event_sent) {
++ ts->event_sent = 0;
++ update_pen_state(ts, 0, 0, 0);
++ }
++}
++
++/*
++ * This interrupt is called when pen is down and coordinates are
++ * available. That is indicated by a falling edge on DEV line.
++ */
++static irqreturn_t tsc2301_ts_irq_handler(int irq, void *dev_id)
++{
++ struct tsc2301 *tsc = dev_id;
++ struct tsc2301_ts *ts = tsc->ts;
++ int r;
++
++ r = spi_async(tsc->spi, &ts->read_msg);
++ if (r)
++ dev_err(&tsc->spi->dev, "ts: spi_async() failed");
++
++ mod_timer(&ts->penup_timer,
++ jiffies + msecs_to_jiffies(TSC2301_TS_PENUP_TIME));
++
++ return IRQ_HANDLED;
++}
++
++static void tsc2301_ts_disable(struct tsc2301 *tsc)
++{
++ struct tsc2301_ts *ts = tsc->ts;
++
++ if (ts->disable_depth++ != 0)
++ return;
++
++ disable_irq(ts->irq);
++
++ /* wait until penup timer expire normally */
++ do {
++ msleep(1);
++ } while (ts->event_sent);
++
++ tsc2301_ts_stop_scan(tsc);
++}
++
++static void tsc2301_ts_enable(struct tsc2301 *tsc)
++{
++ struct tsc2301_ts *ts = tsc->ts;
++
++ if (--ts->disable_depth != 0)
++ return;
++
++ enable_irq(ts->irq);
++
++ tsc2301_ts_start_scan(tsc);
++}
++
++#ifdef CONFIG_PM
++int tsc2301_ts_suspend(struct tsc2301 *tsc)
++{
++ struct tsc2301_ts *ts = tsc->ts;
++
++ mutex_lock(&ts->mutex);
++ tsc2301_ts_disable(tsc);
++ mutex_unlock(&ts->mutex);
++
++ return 0;
++}
++
++void tsc2301_ts_resume(struct tsc2301 *tsc)
++{
++ struct tsc2301_ts *ts = tsc->ts;
++
++ mutex_lock(&ts->mutex);
++ tsc2301_ts_enable(tsc);
++ mutex_unlock(&ts->mutex);
++}
++#endif
++
++static void tsc2301_ts_setup_spi_xfer(struct tsc2301 *tsc)
++{
++ struct tsc2301_ts *ts = tsc->ts;
++ struct spi_message *m = &ts->read_msg;
++ struct spi_transfer *x = &ts->read_xfer[0];
++
++ spi_message_init(m);
++
++ x->tx_buf = &tsc2301_ts_read_data;
++ x->len = 2;
++ spi_message_add_tail(x, m);
++
++ x++;
++ x->rx_buf = ts->coords;
++ x->len = 8;
++ spi_message_add_tail(x, m);
++
++ m->complete = tsc2301_ts_rx;
++ m->context = tsc;
++}
++
++static ssize_t tsc2301_ts_pen_down_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++
++ return sprintf(buf, "%u\n", tsc->ts->pen_down);
++}
++
++static DEVICE_ATTR(pen_down, S_IRUGO, tsc2301_ts_pen_down_show, NULL);
++
++static ssize_t tsc2301_ts_disable_show(struct device *dev,
++ struct device_attribute *attr, char *buf)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++ struct tsc2301_ts *ts = tsc->ts;
++
++ return sprintf(buf, "%u\n", ts->disabled);
++}
++
++static ssize_t tsc2301_ts_disable_store(struct device *dev,
++ struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++ struct tsc2301_ts *ts = tsc->ts;
++ char *endp;
++ int i;
++
++ i = simple_strtoul(buf, &endp, 10);
++ i = i ? 1 : 0;
++ mutex_lock(&ts->mutex);
++ if (i == ts->disabled) goto out;
++ ts->disabled = i;
++
++ if (i)
++ tsc2301_ts_disable(tsc);
++ else
++ tsc2301_ts_enable(tsc);
++out:
++ mutex_unlock(&ts->mutex);
++ return count;
++}
++
++static DEVICE_ATTR(disable_ts, 0664, tsc2301_ts_disable_show,
++ tsc2301_ts_disable_store);
++
++int __devinit tsc2301_ts_init(struct tsc2301 *tsc,
++ struct tsc2301_platform_data *pdata)
++{
++ struct tsc2301_ts *ts;
++ struct input_dev *idev;
++ int r;
++ int x_max, y_max;
++ int x_fudge, y_fudge, p_fudge;
++
++ if (pdata->dav_int <= 0) {
++ dev_err(&tsc->spi->dev, "need DAV IRQ");
++ return -EINVAL;
++ }
++
++ ts = kzalloc(sizeof(*ts), GFP_KERNEL);
++ if (ts == NULL)
++ return -ENOMEM;
++ tsc->ts = ts;
++
++ ts->coords = kzalloc(sizeof(*ts->coords), GFP_KERNEL);
++ if (ts->coords == NULL) {
++ kfree(ts);
++ return -ENOMEM;
++ }
++
++ ts->irq = pdata->dav_int;
++
++ init_timer(&ts->penup_timer);
++ setup_timer(&ts->penup_timer, tsc2301_ts_timer_handler,
++ (unsigned long)tsc);
++
++ mutex_init(&ts->mutex);
++
++ ts->x_plate_ohm = pdata->ts_x_plate_ohm ? : 280;
++ ts->hw_avg_max = pdata->ts_hw_avg;
++ ts->max_pressure = pdata->ts_max_pressure ? : MAX_12BIT;
++ ts->touch_pressure = pdata->ts_touch_pressure ? : ts->max_pressure;
++ ts->stab_time = pdata->ts_stab_time;
++
++ x_max = pdata->ts_x_max ? : 4096;
++ y_max = pdata->ts_y_max ? : 4096;
++ x_fudge = pdata->ts_x_fudge ? : 4;
++ y_fudge = pdata->ts_y_fudge ? : 8;
++ p_fudge = pdata->ts_pressure_fudge ? : 2;
++
++ if ((r = tsc2301_ts_check_config(ts, &ts->hw_flags))) {
++ dev_err(&tsc->spi->dev, "invalid configuration\n");
++ goto err2;
++ }
++
++ idev = input_allocate_device();
++ if (idev == NULL) {
++ r = -ENOMEM;
++ goto err2;
++ }
++ idev->name = "TSC2301 touchscreen";
++ snprintf(ts->phys, sizeof(ts->phys),
++ "%s/input-ts", dev_name(&tsc->spi->dev));
++ idev->phys = ts->phys;
++ idev->dev.parent = &tsc->spi->dev;
++
++ idev->evbit[0] = BIT(EV_ABS) | BIT(EV_KEY);
++ idev->absbit[0] = BIT(ABS_X) | BIT(ABS_Y) | BIT(ABS_PRESSURE);
++ ts->idev = idev;
++
++ tsc2301_ts_setup_spi_xfer(tsc);
++
++ /* These parameters should perhaps be configurable? */
++ input_set_abs_params(idev, ABS_X, 0, x_max, x_fudge, 0);
++ input_set_abs_params(idev, ABS_Y, 0, y_max, y_fudge, 0);
++ input_set_abs_params(idev, ABS_PRESSURE, 0, ts->max_pressure,
++ p_fudge, 0);
++
++ tsc2301_ts_start_scan(tsc);
++
++ r = request_irq(ts->irq, tsc2301_ts_irq_handler,
++ IRQF_SAMPLE_RANDOM | IRQF_TRIGGER_FALLING,
++ "tsc2301-ts", tsc);
++ if (r < 0) {
++ dev_err(&tsc->spi->dev, "unable to get DAV IRQ");
++ goto err3;
++ }
++ irq_set_irq_wake(ts->irq, 1);
++
++ if (device_create_file(&tsc->spi->dev, &dev_attr_pen_down) < 0)
++ goto err4;
++ if (device_create_file(&tsc->spi->dev, &dev_attr_disable_ts) < 0)
++ goto err5;
++
++ r = input_register_device(idev);
++ if (r < 0) {
++ dev_err(&tsc->spi->dev, "can't register touchscreen device\n");
++ goto err6;
++ }
++
++ return 0;
++err6:
++ device_remove_file(&tsc->spi->dev, &dev_attr_disable_ts);
++err5:
++ device_remove_file(&tsc->spi->dev, &dev_attr_pen_down);
++err4:
++ free_irq(ts->irq, tsc);
++err3:
++ tsc2301_ts_stop_scan(tsc);
++ input_free_device(idev);
++err2:
++ kfree(ts->coords);
++ kfree(ts);
++ return r;
++}
++
++void __devexit tsc2301_ts_exit(struct tsc2301 *tsc)
++{
++ struct tsc2301_ts *ts = tsc->ts;
++
++ tsc2301_ts_disable(tsc);
++
++ device_remove_file(&tsc->spi->dev, &dev_attr_disable_ts);
++ device_remove_file(&tsc->spi->dev, &dev_attr_pen_down);
++
++ free_irq(ts->irq, tsc);
++ input_unregister_device(ts->idev);
++
++ kfree(ts->coords);
++ kfree(ts);
++}
++MODULE_AUTHOR("Jarkko Oikarinen <jarkko.oikarinen@nokia.com>");
++MODULE_LICENSE("GPL");
+--- a/drivers/spi/Kconfig
++++ b/drivers/spi/Kconfig
+@@ -433,6 +433,28 @@ config SPI_TLE62X0
+ sysfs interface, with each line presented as a kind of GPIO
+ exposing both switch control and diagnostic feedback.
+
++config SPI_TSC2301
++ tristate "TSC2301 driver"
++ depends on SPI_MASTER
++ help
++ Say Y here if you have a TSC2301 chip connected to an SPI
++ bus on your board.
++
++ The TSC2301 is a highly integrated PDA analog interface circuit.
++ It contains a complete 12-bit A/D resistive touch screen
++ converter (ADC) including drivers, touch pressure measurement
++ capability, keypad controller, and 8-bit D/A converter (DAC) output
++ for LCD contrast control.
++
++ To compile this driver as a module, choose M here: the
++ module will be called tsc2301.
++
++config SPI_TSC2301_AUDIO
++ boolean "TSC2301 audio support"
++ depends on SPI_TSC2301 && SND
++ help
++ Say Y here for if you are using the audio features of TSC2301.
++
+ #
+ # Add new SPI protocol masters in alphabetical order above this line
+ #
+--- a/drivers/spi/Makefile
++++ b/drivers/spi/Makefile
+@@ -59,4 +59,6 @@ obj-$(CONFIG_SPI_TLE62X0) += spi-tle62x
+ obj-$(CONFIG_SPI_TOPCLIFF_PCH) += spi-topcliff-pch.o
+ obj-$(CONFIG_SPI_TXX9) += spi-txx9.o
+ obj-$(CONFIG_SPI_XILINX) += spi-xilinx.o
+-
++obj-$(CONFIG_SPI_TSC2301) += tsc2301.o
++tsc2301-objs := tsc2301-core.o
++tsc2301-$(CONFIG_SPI_TSC2301_AUDIO) += tsc2301-mixer.o
+--- /dev/null
++++ b/drivers/spi/tsc2301-core.c
+@@ -0,0 +1,297 @@
++/*
++ * TSC2301 driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation
++ *
++ * This program is free software; you can redistribute it and/or modify
++ * it under the terms of the GNU General Public License as published by
++ * the Free Software Foundation; either version 2 of the License, or
++ * (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/device.h>
++#include <linux/delay.h>
++#include <linux/gpio.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/tsc2301.h>
++
++u16 tsc2301_read_reg(struct tsc2301 *tsc, int reg)
++{
++ struct spi_transfer t[2];
++ struct spi_message m;
++ u16 data = 0, cmd;
++
++ cmd = reg;
++ cmd |= 0x8000;
++
++ memset(t, 0, sizeof(t));
++ spi_message_init(&m);
++ m.spi = tsc->spi;
++
++ t[0].tx_buf = &cmd;
++ t[0].rx_buf = NULL;
++ t[0].len = 2;
++ spi_message_add_tail(&t[0], &m);
++
++ t[1].tx_buf = NULL;
++ t[1].rx_buf = &data;
++ t[1].len = 2;
++ spi_message_add_tail(&t[1], &m);
++
++ spi_sync(m.spi, &m);
++
++ return data;
++}
++
++void tsc2301_write_reg(struct tsc2301 *tsc, int reg, u16 val)
++{
++ struct spi_transfer t;
++ struct spi_message m;
++ u16 data[2];
++
++ /* Now we prepare the command for transferring */
++ data[0] = reg;
++ data[1] = val;
++
++ spi_message_init(&m);
++ m.spi = tsc->spi;
++
++ memset(&t, 0, sizeof(t));
++ t.tx_buf = data;
++ t.rx_buf = NULL;
++ t.len = 4;
++ spi_message_add_tail(&t, &m);
++
++ spi_sync(m.spi, &m);
++}
++
++void tsc2301_write_kbc(struct tsc2301 *tsc, int val)
++{
++ u16 w;
++
++ w = tsc->config2_shadow;
++ w &= ~(0x03 << 14);
++ w |= (val & 0x03) << 14;
++ tsc2301_write_reg(tsc, TSC2301_REG_CONFIG2, w);
++ tsc->config2_shadow = w;
++}
++
++void tsc2301_write_pll(struct tsc2301 *tsc,
++ int pll_n, int pll_a, int pll_pdc, int pct_e, int pll_o)
++{
++ u16 w;
++
++ w = tsc->config2_shadow;
++ w &= ~0x3fff;
++ w |= (pll_n & 0x0f) | ((pll_a & 0x0f) << 4) | ((pll_pdc & 0x0f) << 8);
++ w |= pct_e ? (1 << 12) : 0;
++ w |= pll_o ? (1 << 13) : 0;
++ tsc2301_write_reg(tsc, TSC2301_REG_CONFIG2, w);
++ tsc->config2_shadow = w;
++}
++
++void tsc2301_read_buf(struct tsc2301 *tsc, int reg, u16 *rx_buf, int len)
++{
++ struct spi_transfer t[2];
++ struct spi_message m;
++ u16 cmd, i;
++
++ cmd = reg;
++ cmd |= 0x8000;
++
++ spi_message_init(&m);
++ m.spi = tsc->spi;
++
++ memset(t, 0, sizeof(t));
++ t[0].tx_buf = &cmd;
++ t[0].rx_buf = NULL;
++ t[0].len = 2;
++ spi_message_add_tail(&t[0], &m);
++
++ t[1].tx_buf = NULL;
++ t[1].rx_buf = rx_buf;
++ t[1].len = 2 * len;
++ spi_message_add_tail(&t[1], &m);
++
++ spi_sync(m.spi, &m);
++
++ for (i = 0; i < len; i++)
++ printk(KERN_DEBUG "rx_buf[%d]: %04x\n", i, rx_buf[i]);
++}
++
++static int __devinit tsc2301_probe(struct spi_device *spi)
++{
++ struct tsc2301 *tsc;
++ struct tsc2301_platform_data *pdata = spi->dev.platform_data;
++ int r;
++ u16 w;
++
++ if (!pdata) {
++ dev_dbg(&spi->dev, "no platform data?\n");
++ return -ENODEV;
++ }
++
++ tsc = kzalloc(sizeof(*tsc), GFP_KERNEL);
++ if (tsc == NULL)
++ return -ENOMEM;
++
++ dev_set_drvdata(&spi->dev, tsc);
++ tsc->spi = spi;
++
++ tsc->enable_clock = pdata->enable_clock;
++ tsc->disable_clock = pdata->disable_clock;
++
++ if (pdata->reset_gpio >= 0) {
++ tsc->reset_gpio = pdata->reset_gpio;
++ r = gpio_request(tsc->reset_gpio, "TSC2301 reset");
++ if (r < 0)
++ goto err1;
++ gpio_direction_output(tsc->reset_gpio, 1);
++ mdelay(1);
++ gpio_set_value(tsc->reset_gpio, 0);
++ } else
++ tsc->reset_gpio = -1;
++
++ spi->mode = SPI_MODE_1;
++ spi->bits_per_word = 16;
++ /* The max speed might've been defined by the board-specific
++ * struct */
++ if (!spi->max_speed_hz)
++ spi->max_speed_hz = TSC2301_HZ;
++ spi_setup(spi);
++
++ /* Soft reset */
++ tsc2301_write_reg(tsc, TSC2301_REG_RESET, 0xbb00);
++ msleep(1);
++
++ w = tsc2301_read_reg(tsc, TSC2301_REG_ADC);
++ if (!(w & (1 << 14))) {
++ dev_err(&spi->dev, "invalid ADC reg value: %04x\n", w);
++ r = -ENODEV;
++ goto err1;
++ }
++
++ w = tsc2301_read_reg(tsc, TSC2301_REG_DAC);
++ if (!(w & (1 << 15))) {
++ dev_err(&spi->dev, "invalid DAC reg value: %04x\n", w);
++ r = -ENODEV;
++ goto err1;
++ }
++
++ /* Stop keypad scanning */
++ tsc2301_write_reg(tsc, TSC2301_REG_KEY, 0x4000);
++
++ /* We have to cache this for read-modify-write, since we can't
++ * read back BIT15 */
++ w = tsc2301_read_reg(tsc, TSC2301_REG_CONFIG2);
++ /* By default BIT15 is set */
++ w |= 1 << 15;
++ tsc->config2_shadow = w;
++
++ r = tsc2301_kp_init(tsc, pdata);
++ if (r)
++ goto err1;
++ r = tsc2301_ts_init(tsc, pdata);
++ if (r)
++ goto err2;
++ r = tsc2301_mixer_init(tsc, pdata);
++ if (r)
++ goto err3;
++ return 0;
++
++err3:
++ tsc2301_ts_exit(tsc);
++err2:
++ tsc2301_kp_exit(tsc);
++err1:
++ kfree(tsc);
++ return r;
++}
++
++static int __devexit tsc2301_remove(struct spi_device *spi)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(&spi->dev);
++
++ tsc2301_mixer_exit(tsc);
++ tsc2301_ts_exit(tsc);
++ tsc2301_kp_exit(tsc);
++ if (tsc->reset_gpio >= 0)
++ gpio_free(tsc->reset_gpio);
++ kfree(tsc);
++
++ return 0;
++}
++
++#ifdef CONFIG_PM
++static int tsc2301_suspend(struct spi_device *spi, pm_message_t mesg)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(&spi->dev);
++ int r;
++
++ if ((r = tsc2301_mixer_suspend(tsc)) < 0)
++ return r;
++ if ((r = tsc2301_kp_suspend(tsc)) < 0)
++ goto err1;
++ if ((r = tsc2301_ts_suspend(tsc)) < 0)
++ goto err2;
++
++ return 0;
++err2:
++ tsc2301_kp_resume(tsc);
++err1:
++ tsc2301_mixer_resume(tsc);
++ return r;
++}
++
++static int tsc2301_resume(struct spi_device *spi)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(&spi->dev);
++
++ tsc2301_ts_resume(tsc);
++ tsc2301_kp_resume(tsc);
++ tsc2301_mixer_resume(tsc);
++ return 0;
++}
++#endif
++
++static struct spi_driver tsc2301_driver = {
++ .driver = {
++ .name = "tsc2301",
++ .bus = &spi_bus_type,
++ .owner = THIS_MODULE,
++ },
++#ifdef CONFIG_PM
++ .suspend = tsc2301_suspend,
++ .resume = tsc2301_resume,
++#endif
++ .probe = tsc2301_probe,
++ .remove = __devexit_p(tsc2301_remove),
++};
++
++static int __init tsc2301_init(void)
++{
++ printk("TSC2301 driver initializing\n");
++
++ return spi_register_driver(&tsc2301_driver);
++}
++module_init(tsc2301_init);
++
++static void __exit tsc2301_exit(void)
++{
++ spi_unregister_driver(&tsc2301_driver);
++}
++module_exit(tsc2301_exit);
++
++MODULE_AUTHOR("Juha Yrjölä <juha.yrjola@nokia.com>");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/drivers/spi/tsc2301-mixer.c
+@@ -0,0 +1,1003 @@
++/*
++ * ALSA Mixer implementation for TSC2301
++ *
++ * Copyright (C) 2006 Nokia Corporation.
++ *
++ * Contact: Jarkko Nikula <jarkko.nikula@nokia.com>
++ * Juha Yrjola
++ *
++ * Some notes about TSC2301:
++ * - PLL will stop when DAC and ADC's are powered down.
++ * - Touchscreen will stop working when audio part is powered up and if audio
++ * MCLK is stopped. Problem is avoided if audio is powered down before
++ * stopping MCLK.
++ * - Audio DAC or audio outputs will activate only after 100 msec from the
++ * chip power-up. Reason seems to be VCM since there is no this delay if the
++ * chip and VCM (bit AVPD on PD/MISC) were not powered down. The chip will
++ * consume about 1 mA if all other audio blocks are powered down except the
++ * chip itself and VCM. Full power down consumes only about few uA.
++ * - Power-down transition could happen earliest about 100 msec after the chip
++ * power-up. Otherwise power-down will fail if there is no that 100 msec
++ * on time before it. It's not obvious why is that since chip reports
++ * power-up to be completed and also PLL output on GPIO_0 is active in few
++ * milliseconds.
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/module.h>
++#include <linux/device.h>
++#include <linux/errno.h>
++#include <linux/delay.h>
++#include <linux/slab.h>
++#include <linux/spi/spi.h>
++#include <linux/spi/tsc2301.h>
++
++#include <sound/core.h>
++#include <sound/control.h>
++
++/* shadow register indexes */
++enum {
++ /* audio control and volume registers */
++ AUDCNTL_INDEX,
++ ADCVOL_INDEX,
++ DACVOL_INDEX,
++ BPVOL_INDEX,
++ /* keyclick control register (not needed here) */
++ /* audio power control register */
++ PD_MISC_INDEX,
++ /* TSC2301 GPIO control register */
++ GPIO_INDEX,
++
++ SHADOW_REG_COUNT,
++};
++
++/* structure for driver private data */
++struct tsc2301_mixer {
++ struct tsc2301 *tsc;
++ struct mutex mutex;
++
++ /* shadow registers holding TSC2301 audio registers. Used to hold
++ * their states during the sleep and also to reduce communication with
++ * the chip since get callback functions could get register values
++ * directly from these shadow registers without needing to read them
++ * from the chip */
++ u16 shadow_regs[SHADOW_REG_COUNT];
++
++ /* audio controller driver usage of the ADC and DAC */
++ unsigned adc_enabled:1, dac_enabled:1;
++ unsigned pll_output:1;
++ unsigned mclk_enabled;
++
++ /* latest audio power-up timestamp */
++ unsigned long pu_jiffies;
++
++ /* these are used when upper layer(s) are going to power-down TSC2301
++ * before 100 msec is passed from power-up */
++ struct delayed_work delayed_power_down;
++ unsigned delayed_pd_active:1;
++
++ int (* platform_init)(struct device *);
++ void (* platform_cleanup)(struct device *);
++
++ struct tsc2301_mixer_gpio *mixer_gpios;
++ int n_mixer_gpios;
++};
++
++#define TSC2301_DAC_DELAY msecs_to_jiffies(100)
++#define TSC2301_MIN_PU_PERIOD msecs_to_jiffies(100)
++
++#define TSC2301_REG_TO_PVAL(reg) \
++ (TSC2301_REG_TO_PAGE(reg) << 6 | TSC2301_REG_TO_ADDR(reg))
++#define TSC2301_PVAL_TO_REG(v) \
++ (TSC2301_REG((((v) >> 6) & 3),((v) & 0x1f)))
++
++#define TSC2301_VOLUME_MASK 0x7f
++#define TSC2301_MIN_ADCVOL 6
++#define TSC2301_MIN_DACVOL 0
++#define TSC2301_MIN_BPVOL 31
++#define TSC2301_MUTE_LEFT_SHIFT 15
++#define TSC2301_VOL_LEFT_SHIFT 8
++#define TSC2301_MUTE_RIGHT_SHIFT 7
++#define TSC2301_VOL_RIGHT_SHIFT 0
++
++#define TSC2301_INM_MASK 3
++#define TSC2301_INML_SHIFT 12
++#define TSC2301_INMR_SHIFT 10
++
++#define TSC2301_MICG_MASK 3
++#define TSC2301_MICG_MIN 1 /* values 0 & 1 both mean 0 dB */
++#define TSC2301_MICG_SHIFT 8
++
++#define TSC2301_REG_AUDCNTL_MCLK(v) (((v) & 3) << 6)
++#define TSC2301_REG_AUDCNTL_I2SFS(v) (((v) & 0xf) << 2)
++#define TSC2301_REG_AUDCNTL_I2SFM(v) (((v) & 3) << 0)
++
++#define TSC2301_SINGLE(xname, xindex, reg, shadow_index, shift, mask, min) \
++{\
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
++ .name = xname, \
++ .index = xindex, \
++ .info = snd_tsc2301_info_single, \
++ .get = snd_tsc2301_get_single, \
++ .put = snd_tsc2301_put_single, \
++ .private_value = TSC2301_REG_TO_PVAL(reg) | \
++ (shadow_index << 8) | (shift << 16) | (mask << 24) | \
++ (min << 28) \
++}
++#define TSC2301_SINGLE_MINVAL(v) (((v) >> 28) & 15)
++#define TSC2301_SINGLE_SHIFT(v) (((v) >> 16) & 15)
++#define TSC2301_SINGLE_MASK(v) (((v) >> 24) & 15)
++
++#define TSC2301_DOUBLE(xname, xindex, reg, shadow_index, ls, rs, mask, min) \
++{\
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
++ .name = xname, \
++ .index = xindex, \
++ .info = snd_tsc2301_info_double, \
++ .get = snd_tsc2301_get_double, \
++ .put = snd_tsc2301_put_double, \
++ .private_value = TSC2301_REG_TO_PVAL(reg) | \
++ (shadow_index << 8) | (min << 11) | \
++ (ls << 16) | (rs << 20) | (mask << 24) \
++}
++#define TSC2301_DOUBLE_MINVAL(v) (((v) >> 11) & 0x1f)
++#define TSC2301_DOUBLE_LEFT_SHIFT(v) (((v) >> 16) & 15)
++#define TSC2301_DOUBLE_RIGHT_SHIFT(v) (((v) >> 20) & 15)
++#define TSC2301_DOUBLE_MASK(v) (((v) >> 24) & TSC2301_VOLUME_MASK)
++
++#define TSC2301_MUX(xname, xindex, reg, shadow_index, ls, rs, mask) \
++{\
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
++ .name = xname, \
++ .index = xindex, \
++ .info = snd_tsc2301_info_mux, \
++ .get = snd_tsc2301_get_mux, \
++ .put = snd_tsc2301_put_mux, \
++ .private_value = TSC2301_REG_TO_PVAL(reg) | \
++ (shadow_index << 8) | (ls << 16) | (rs << 20) | (mask << 24) \
++}
++#define TSC2301_MUX_LEFT_SHIFT(v) (((v) >> 16) & 15)
++#define TSC2301_MUX_RIGHT_SHIFT(v) (((v) >> 20) & 15)
++#define TSC2301_MUX_MASK(v) (((v) >> 24) & TSC2301_VOLUME_MASK)
++
++#define TSC2301_BOOL(xname, xindex, reg, shadow_index, shift, invert, state) \
++{ \
++ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
++ .name = xname, \
++ .index = xindex, \
++ .info = snd_tsc2301_info_bool, \
++ .get = snd_tsc2301_get_bool, \
++ .put = snd_tsc2301_put_bool, \
++ .private_value = TSC2301_REG_TO_PVAL(reg) | \
++ (shadow_index << 8) | (shift << 16) | \
++ (invert << 24) | (state << 25) \
++}
++#define TSC2301_BOOL_SHIFT(v) (((v) >> 16) & 7)
++#define TSC2301_BOOL_INVERT(v) (((v) >> 24) & 1)
++#define TSC2301_BOOL_STATE(v) (((v) >> 25) & 1)
++
++#define TSC2301_SHADOW_INDEX(v) (((v) >> 8) & 7)
++
++/*
++ * Power-down handler for additional GPIO mixer controls. GPIO state of GPIO
++ * controls whose power-down flag is enabled are set to their false/deactivate
++ * state
++ *
++ * Must be called tsc->mixer->mutex locked
++ */
++static void tsc2301_gpio_power_down(struct tsc2301 *tsc)
++{
++ struct tsc2301_mixer *mix = tsc->mixer;
++ u16 temp;
++ int i;
++
++ temp = mix->shadow_regs[GPIO_INDEX];
++ for (i = 0; i < mix->n_mixer_gpios; i++) {
++ const struct tsc2301_mixer_gpio *mg;
++
++ mg = mix->mixer_gpios + i;
++ if (mg->deactivate_on_pd) {
++ int gpio = mg->gpio;
++
++ temp &= ~(1 << gpio);
++ temp |= mg->inverted << gpio;
++ }
++ }
++ tsc2301_write_reg(tsc, TSC2301_REG_GPIO, temp);
++}
++
++/*
++ * Powers down/up audio blocks which are muted or become unused.
++ * shadow_index >= 0, changes power state of single audio block
++ * shadow_index < 0, changes power state of all blocks
++ *
++ * Must be called tsc->mixer->mutex locked
++ */
++#define TSC2301_MUTE_MASK \
++ ((1 << TSC2301_MUTE_LEFT_SHIFT) | (1 << TSC2301_MUTE_RIGHT_SHIFT))
++static void tsc2301_power_ctrl(struct tsc2301 *tsc, int shadow_index,
++ int poll_pdsts)
++{
++ struct tsc2301_mixer *mix = tsc->mixer;
++ u16 pd_ctrl, pd_ctrl_old, w;
++ unsigned long timeout;
++ int power_up = 0;
++
++ if (mix->delayed_pd_active) {
++ mix->delayed_pd_active = 0;
++ mix->mclk_enabled--;
++ cancel_delayed_work(&mix->delayed_power_down);
++ }
++
++ pd_ctrl = pd_ctrl_old = mix->shadow_regs[PD_MISC_INDEX];
++ /* power control helper based on used space mixer selections. See
++ * actual power control decisions below */
++ if (shadow_index < 0 || shadow_index == ADCVOL_INDEX) {
++ /* ADC left and right power down control */
++ if (mix->shadow_regs[ADCVOL_INDEX] &
++ (1 << TSC2301_MUTE_LEFT_SHIFT))
++ /* left ADC muted. Power down the left ADC */
++ pd_ctrl |= TSC2301_REG_PD_MISC_ADPDL;
++ else
++ pd_ctrl &= ~TSC2301_REG_PD_MISC_ADPDL;
++ if (mix->shadow_regs[ADCVOL_INDEX] &
++ (1 << TSC2301_MUTE_LEFT_SHIFT))
++ /* right ADC muted. Power down the right ADC */
++ pd_ctrl |= TSC2301_REG_PD_MISC_ADPDR;
++ else
++ pd_ctrl &= ~TSC2301_REG_PD_MISC_ADPDR;
++ }
++ if (shadow_index < 0 || shadow_index == DACVOL_INDEX) {
++ /* DAC power down control */
++ if ((mix->shadow_regs[DACVOL_INDEX] &
++ TSC2301_MUTE_MASK) == TSC2301_MUTE_MASK)
++ /* both DACs muted. Power down the DAC */
++ pd_ctrl |= TSC2301_REG_PD_MISC_DAPD;
++ else
++ pd_ctrl &= ~TSC2301_REG_PD_MISC_DAPD;
++ }
++ if (shadow_index < 0 || shadow_index == BPVOL_INDEX) {
++ /* line bypass power down control */
++ if ((mix->shadow_regs[BPVOL_INDEX] &
++ TSC2301_MUTE_MASK) == TSC2301_MUTE_MASK)
++ /* both line bypasses muted. Power down the bypass
++ * path */
++ pd_ctrl |= TSC2301_REG_PD_MISC_ABPD;
++ else
++ pd_ctrl &= ~TSC2301_REG_PD_MISC_ABPD;
++ }
++ if (shadow_index < 0 || shadow_index == AUDCNTL_INDEX) {
++ /* mic bias power down control */
++ if ((mix->shadow_regs[AUDCNTL_INDEX] &
++ (3 << TSC2301_INML_SHIFT)) &&
++ (mix->shadow_regs[AUDCNTL_INDEX] &
++ (3 << TSC2301_INMR_SHIFT)))
++ /* both ADC channels use other than mic input. Power
++ * down the mic bias output */
++ pd_ctrl |= TSC2301_REG_PD_MISC_MIBPD;
++ else
++ pd_ctrl &= ~TSC2301_REG_PD_MISC_MIBPD;
++ }
++
++ /* power control decisions based on codec usage and user space mixer
++ * selections detected above */
++ pd_ctrl &= ~TSC2301_REG_PD_MISC_APD; /* audio not powered down */
++ if (mix->mclk_enabled) {
++ if (!mix->adc_enabled) {
++ /* ADC not used, power down both ADC's and mic bias
++ * output independently of user space mixer
++ * selections */
++ pd_ctrl |= TSC2301_REG_PD_MISC_ADPDL;
++ pd_ctrl |= TSC2301_REG_PD_MISC_ADPDR;
++ pd_ctrl |= TSC2301_REG_PD_MISC_MIBPD;
++ }
++ if (!mix->dac_enabled) {
++ /* DAC not used, power down DAC independently of user
++ * space mixer selections */
++ pd_ctrl |= TSC2301_REG_PD_MISC_DAPD;
++ }
++
++ if (mix->pll_output) {
++ /* GPIO_0 is configured as PLL output so audio
++ * controller is expecting clock from TSC2301. Either
++ * ADC or DAC must be active in order to keep PLL on */
++ if ((pd_ctrl & TSC2301_REG_PD_MISC_ADPDL) &&
++ (pd_ctrl & TSC2301_REG_PD_MISC_ADPDR) &&
++ (pd_ctrl & TSC2301_REG_PD_MISC_DAPD)) {
++ /* neither ADC or DAC used. Force ADC on in
++ * order to keep PLL active */
++ pd_ctrl &= ~(TSC2301_REG_PD_MISC_ADPDL |
++ TSC2301_REG_PD_MISC_ADPDR);
++ }
++ }
++ } else {
++ /* audio input clock is not enabled so power down DAC and ADC
++ * in order to shutdown PLL and to keep touchscreen and keypad
++ * parts working. Touchscreen and keypad use audio clock when
++ * PLL is on and internal clock otherwise */
++ pd_ctrl |= TSC2301_REG_PD_MISC_DAPD |
++ TSC2301_REG_PD_MISC_ADPDL |
++ TSC2301_REG_PD_MISC_ADPDR;
++ }
++
++ if ((pd_ctrl & TSC2301_REG_PD_MISC_ADPDL) &&
++ (pd_ctrl & TSC2301_REG_PD_MISC_ADPDR) &&
++ (pd_ctrl & TSC2301_REG_PD_MISC_DAPD) &&
++ (pd_ctrl & TSC2301_REG_PD_MISC_ABPD)) {
++ /* all ADC, DAC and line bypass path unused. Power down the
++ * whole audio part of the TSC2301 */
++ pd_ctrl |= TSC2301_REG_PD_MISC_APD;
++ }
++
++ if (pd_ctrl == pd_ctrl_old)
++ return;
++
++ /* power down control changed. Update into TSC2301 */
++ if ((pd_ctrl ^ pd_ctrl_old) & TSC2301_REG_PD_MISC_APD) {
++ /* whole audio power state changed. Update GPIO states */
++ if (pd_ctrl & TSC2301_REG_PD_MISC_APD) {
++ /* power down GPIO controls before powering down
++ * the codec */
++ tsc2301_gpio_power_down(tsc);
++ /* we must really ensure that codec has been on no less
++ * than 100 msec before doing power-down */
++ timeout = mix->pu_jiffies + TSC2301_MIN_PU_PERIOD -
++ jiffies;
++ if (timeout <= TSC2301_MIN_PU_PERIOD) {
++ mix->delayed_pd_active = 1;
++ mix->mclk_enabled++;
++ schedule_delayed_work(&mix->delayed_power_down,
++ timeout + 1);
++ return;
++ }
++ } else
++ /* restore GPIOs after codec is powered up */
++ power_up = 1;
++ }
++ mix->shadow_regs[PD_MISC_INDEX] = pd_ctrl;
++ tsc2301_write_reg(tsc, TSC2301_REG_PD_MISC, pd_ctrl);
++ if (power_up)
++ mix->pu_jiffies = jiffies;
++ if (!poll_pdsts) {
++ if (power_up)
++ tsc2301_write_reg(tsc, TSC2301_REG_GPIO,
++ mix->shadow_regs[GPIO_INDEX]);
++ return;
++ }
++
++ /* wait until power-up/-down is completed */
++ timeout = jiffies + msecs_to_jiffies(100);
++ w = 0;
++ do {
++ if (time_after(jiffies, timeout)) {
++ /* Print a warning only if the I2S clock is not
++ * present / out of sync. This can happen during
++ * init time, when that clock will be turned on
++ * by another driver like in the OMAP EAC with
++ * external clock case.
++ */
++ if (w & TSC2301_REG_PD_MISC_OTSYN) {
++ dev_warn(&tsc->spi->dev,
++ "I2S clock not in sync or off.\n");
++ } else {
++ dev_err(&tsc->spi->dev,
++ "power-up/-down timed out "
++ "(0x%04x, 0x%04x -> 0x%04x)\n",
++ w, pd_ctrl_old, pd_ctrl);
++ }
++ goto out;
++ }
++ w = tsc2301_read_reg(tsc, TSC2301_REG_PD_MISC);
++ } while (!(w & TSC2301_REG_PD_MISC_PDSTS));
++
++out:
++ if (((pd_ctrl ^ pd_ctrl_old) & TSC2301_REG_PD_MISC_DAPD) &&
++ !(pd_ctrl & TSC2301_REG_PD_MISC_DAPD)) {
++ /* DAC powered up now. Ensure that DAC and audio outputs are
++ * activated. They are up 100 msec after the chip power-up
++ * command */
++ timeout = mix->pu_jiffies + TSC2301_DAC_DELAY - jiffies;
++ if (timeout <= TSC2301_DAC_DELAY)
++ schedule_timeout_interruptible(timeout);
++ /* FIXME: This is lazy. We restore GPIOs only after activating
++ * the DAC. It would be better to do some kind of delayed GPIO
++ * restore. That ensures that we restore them also if only ADC
++ * path is activated. But this is required only if there is
++ * some input amplifier, bias control, etc. and their power
++ * state is under TSC GPIO control */
++ tsc2301_write_reg(tsc, TSC2301_REG_GPIO,
++ mix->shadow_regs[GPIO_INDEX]);
++ }
++}
++
++static int snd_tsc2301_info_single(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_info *uinfo)
++{
++ int mask = TSC2301_SINGLE_MASK(kcontrol->private_value);
++ int minval = TSC2301_SINGLE_MINVAL(kcontrol->private_value);
++
++ uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
++ uinfo->count = 1;
++ uinfo->value.integer.min = minval;
++ uinfo->value.integer.max = mask;
++
++ return 0;
++}
++
++static int snd_tsc2301_get_single(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ int mask = TSC2301_SINGLE_MASK(priv);
++ int shift = TSC2301_SINGLE_SHIFT(priv);
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ u16 shadow_reg;
++
++ shadow_reg = tsc->mixer->shadow_regs[shadow_index];
++
++ ucontrol->value.integer.value[0] = (shadow_reg >> shift) & mask;
++
++ return 0;
++}
++
++static int snd_tsc2301_put_single(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ int mask = TSC2301_SINGLE_MASK(priv);
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ u16 shadow_reg, shadow_reg_old;
++ int shift = TSC2301_SINGLE_SHIFT(priv);
++ int reg = TSC2301_PVAL_TO_REG(priv);
++ int changed;
++
++ mutex_lock(&tsc->mixer->mutex);
++ shadow_reg = shadow_reg_old = tsc->mixer->shadow_regs[shadow_index];
++
++ /* zero bits to be modified */
++ shadow_reg &= ~(mask << shift);
++ /* modify with new value */
++ shadow_reg |= ((ucontrol->value.integer.value[0] & mask) << shift);
++
++ changed = (shadow_reg != shadow_reg_old);
++ tsc->mixer->shadow_regs[shadow_index] = shadow_reg;
++
++ /* update into TSC2301 if necessary */
++ if (changed)
++ tsc2301_write_reg(tsc, reg, shadow_reg);
++ mutex_unlock(&tsc->mixer->mutex);
++
++ return changed;
++}
++
++static int snd_tsc2301_info_double(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_info *uinfo)
++{
++ /* mask == 1 : Switch
++ * mask > 1 : Max volume */
++ int mask = TSC2301_DOUBLE_MASK(kcontrol->private_value);
++ int minval = TSC2301_DOUBLE_MINVAL(kcontrol->private_value);
++
++ uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN :
++ SNDRV_CTL_ELEM_TYPE_INTEGER;
++ uinfo->count = 2;
++ uinfo->value.integer.min = minval;
++ uinfo->value.integer.max = mask;
++
++ return 0;
++}
++
++static int snd_tsc2301_get_double(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ /* mask == 1 : Switch
++ * mask > 1 : Volume */
++ int mask = TSC2301_DOUBLE_MASK(priv);
++ int ls = TSC2301_DOUBLE_LEFT_SHIFT(priv);
++ int rs = TSC2301_DOUBLE_RIGHT_SHIFT(priv);
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ u16 shadow_reg;
++
++ shadow_reg = tsc->mixer->shadow_regs[shadow_index];
++
++ /* invert mute bits for the switches */
++ if (mask == 1)
++ shadow_reg = ~shadow_reg;
++
++ ucontrol->value.integer.value[0] = (shadow_reg >> ls) & mask;
++ ucontrol->value.integer.value[1] = (shadow_reg >> rs) & mask;
++
++ return 0;
++}
++
++static int snd_tsc2301_put_double(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ /* mask == 1 : Switch
++ * mask > 1 : Volume */
++ int mask = TSC2301_DOUBLE_MASK(priv);
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ u16 shadow_reg, shadow_reg_old;
++ int ls = TSC2301_DOUBLE_LEFT_SHIFT(priv);
++ int rs = TSC2301_DOUBLE_RIGHT_SHIFT(priv);
++ int reg = TSC2301_PVAL_TO_REG(priv);
++ int changed;
++
++ mutex_lock(&tsc->mixer->mutex);
++ shadow_reg = shadow_reg_old = tsc->mixer->shadow_regs[shadow_index];
++
++ /* zero bits to be modified */
++ shadow_reg &= ~((mask << ls) | (mask << rs));
++ /* modify with new value */
++ if (mask == 1) {
++ /* switch. Invert switch values for the mute bits */
++ shadow_reg |=
++ ((~ucontrol->value.integer.value[0] & mask) << ls) |
++ ((~ucontrol->value.integer.value[1] & mask) << rs);
++ } else {
++ /* volume */
++ shadow_reg |=
++ (ucontrol->value.integer.value[0] << ls) |
++ (ucontrol->value.integer.value[1] << rs);
++ }
++
++ changed = (shadow_reg != shadow_reg_old);
++ tsc->mixer->shadow_regs[shadow_index] = shadow_reg;
++
++ /* update into TSC2301 if necessary */
++ if (changed)
++ tsc2301_write_reg(tsc, reg, shadow_reg);
++
++ if (mask == 1)
++ /* check is need to power down/up audio blocks in case of
++ * muted state change */
++ tsc2301_power_ctrl(tsc, shadow_index, 0);
++ mutex_unlock(&tsc->mixer->mutex);
++
++ return changed;
++}
++
++static int snd_tsc2301_info_mux(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_info *uinfo)
++{
++ static char *texts[4] = {"Mic", "Line", "Line swapped", "Line mono"};
++
++ uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
++ uinfo->count = 2;
++ uinfo->value.enumerated.items = 4;
++ if (uinfo->value.enumerated.item > 3)
++ uinfo->value.enumerated.item = 3;
++ strcpy(uinfo->value.enumerated.name,
++ texts[uinfo->value.enumerated.item]);
++
++ return 0;
++}
++
++static int snd_tsc2301_get_mux(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ int mask = TSC2301_MUX_MASK(priv);
++ int ls = TSC2301_MUX_LEFT_SHIFT(priv);
++ int rs = TSC2301_MUX_RIGHT_SHIFT(priv);
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ u16 shadow_reg;
++
++ shadow_reg = tsc->mixer->shadow_regs[shadow_index];
++ ucontrol->value.enumerated.item[0] = (shadow_reg >> ls) & mask;
++ ucontrol->value.enumerated.item[1] = (shadow_reg >> rs) & mask;
++
++ return 0;
++}
++
++static int snd_tsc2301_put_mux(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ int mask = TSC2301_MUX_MASK(priv);
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ u16 shadow_reg, shadow_reg_old;
++ int ls = TSC2301_MUX_LEFT_SHIFT(priv);
++ int rs = TSC2301_MUX_RIGHT_SHIFT(priv);
++ int reg = TSC2301_PVAL_TO_REG(priv);
++ int changed;
++
++ mutex_lock(&tsc->mixer->mutex);
++ shadow_reg = shadow_reg_old = tsc->mixer->shadow_regs[shadow_index];
++
++ /* zero bits to be modified */
++ shadow_reg &= ~((mask << ls) | (mask << rs));
++ /* modify with new value */
++ shadow_reg |= (ucontrol->value.enumerated.item[0] << ls);
++ shadow_reg |= (ucontrol->value.enumerated.item[1] << rs);
++
++ changed = (shadow_reg != shadow_reg_old);
++
++ /* update into TSC2301 if necessary */
++ if (changed) {
++ tsc->mixer->shadow_regs[shadow_index] = shadow_reg;
++ tsc2301_write_reg(tsc, reg, shadow_reg);
++ }
++
++ /* check is need to power up/down audio blocks in case of ADC input
++ * change */
++ tsc2301_power_ctrl(tsc, shadow_index, 0);
++ mutex_unlock(&tsc->mixer->mutex);
++
++ return changed;
++}
++
++static int snd_tsc2301_info_bool(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_info *uinfo)
++{
++ uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
++ uinfo->count = 1;
++ uinfo->value.integer.min = 0;
++ uinfo->value.integer.max = 1;
++
++ return 0;
++}
++
++static int snd_tsc2301_get_bool(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ int shift = TSC2301_BOOL_SHIFT(priv);
++ int invert = TSC2301_BOOL_INVERT(priv);
++ u16 shadow_reg;
++
++ shadow_reg = tsc->mixer->shadow_regs[shadow_index];
++ ucontrol->value.integer.value[0] =
++ invert ^ ((shadow_reg >> shift) & 1);
++
++ return 0;
++}
++
++static int snd_tsc2301_put_bool(struct snd_kcontrol *kcontrol,
++ struct snd_ctl_elem_value *ucontrol)
++{
++ struct tsc2301 *tsc = kcontrol->private_data;
++ unsigned long priv = kcontrol->private_value;
++ int shadow_index = TSC2301_SHADOW_INDEX(priv);
++ int shift = TSC2301_BOOL_SHIFT(priv);
++ int invert = TSC2301_BOOL_INVERT(priv);
++ int reg = TSC2301_PVAL_TO_REG(priv);
++ u16 shadow_reg, shadow_reg_old;
++ int changed;
++
++ mutex_lock(&tsc->mixer->mutex);
++ shadow_reg = shadow_reg_old = tsc->mixer->shadow_regs[shadow_index];
++
++ /* zero bit to be modified */
++ shadow_reg &= ~(1 << shift);
++ /* modify with new value */
++ shadow_reg |=
++ (invert ^ (ucontrol->value.integer.value[0] & 1)) << shift;
++
++ changed = (shadow_reg != shadow_reg_old);
++
++ /* update into TSC2301 if necessary */
++ if (changed) {
++ tsc->mixer->shadow_regs[shadow_index] = shadow_reg;
++ if ((shadow_index == GPIO_INDEX) &&
++ (tsc->mixer->shadow_regs[PD_MISC_INDEX] &
++ TSC2301_REG_PD_MISC_APD)) {
++ /* changing GPIO control and audio is powered down.
++ * Update GPIO states according to their power-down
++ * flag */
++ tsc2301_gpio_power_down(tsc);
++ } else
++ tsc2301_write_reg(tsc, reg, shadow_reg);
++ }
++ mutex_unlock(&tsc->mixer->mutex);
++
++ return changed;
++}
++
++/* TSC2301 internal mixer controls */
++static struct snd_kcontrol_new snd_tsc2301_controls[] = {
++ /* stereo ADC input switches and volumes */
++ TSC2301_DOUBLE("Capture Switch", 0,
++ TSC2301_REG_ADCVOL, ADCVOL_INDEX,
++ TSC2301_MUTE_LEFT_SHIFT, TSC2301_MUTE_RIGHT_SHIFT,
++ 1, 0),
++ TSC2301_DOUBLE("Capture Volume", 0,
++ TSC2301_REG_ADCVOL, ADCVOL_INDEX,
++ TSC2301_VOL_LEFT_SHIFT, TSC2301_VOL_RIGHT_SHIFT,
++ TSC2301_VOLUME_MASK, TSC2301_MIN_ADCVOL),
++
++ /* stereo DAC output switches and volumes */
++ TSC2301_DOUBLE("PCM Playback Switch", 0,
++ TSC2301_REG_DACVOL, DACVOL_INDEX,
++ TSC2301_MUTE_LEFT_SHIFT, TSC2301_MUTE_RIGHT_SHIFT,
++ 1, 0),
++ TSC2301_DOUBLE("PCM Playback Volume", 0,
++ TSC2301_REG_DACVOL, DACVOL_INDEX,
++ TSC2301_VOL_LEFT_SHIFT, TSC2301_VOL_RIGHT_SHIFT,
++ TSC2301_VOLUME_MASK, TSC2301_MIN_DACVOL),
++
++ /* stereo line input bypass switches and volumes */
++ TSC2301_DOUBLE("Line Playback Switch", 0,
++ TSC2301_REG_BPVOL, BPVOL_INDEX,
++ TSC2301_MUTE_LEFT_SHIFT, TSC2301_MUTE_RIGHT_SHIFT,
++ 1, 0),
++ TSC2301_DOUBLE("Line Playback Volume", 0,
++ TSC2301_REG_BPVOL, BPVOL_INDEX,
++ TSC2301_VOL_LEFT_SHIFT, TSC2301_VOL_RIGHT_SHIFT,
++ TSC2301_VOLUME_MASK, TSC2301_MIN_BPVOL),
++
++ /* mono microphone input gain */
++ TSC2301_SINGLE("Mic Boost", 0,
++ TSC2301_REG_AUDCNTL, AUDCNTL_INDEX,
++ TSC2301_MICG_SHIFT,
++ TSC2301_MICG_MASK, TSC2301_MICG_MIN),
++
++ /* ADC input sources. Both channels could be selected separately */
++ TSC2301_MUX("Capture Source", 0,
++ TSC2301_REG_AUDCNTL, AUDCNTL_INDEX,
++ TSC2301_INML_SHIFT, TSC2301_INMR_SHIFT,
++ TSC2301_INM_MASK),
++};
++
++/* must be called tsc->mixer->mutex locked */
++static void tsc2301_flush_shadow_regs(struct tsc2301 *tsc)
++{
++ int i, page, addr;
++ u16 temp;
++
++ page = TSC2301_REG_TO_PAGE(TSC2301_REG_AUDCNTL);
++ addr = TSC2301_REG_TO_ADDR(TSC2301_REG_AUDCNTL);
++
++ for (i = 0; i < 4; i++) {
++ temp = tsc->mixer->shadow_regs[i];
++ tsc2301_write_reg(tsc, TSC2301_REG(page, addr + i), temp);
++ }
++ temp = tsc->mixer->shadow_regs[GPIO_INDEX];
++ tsc2301_write_reg(tsc, TSC2301_REG_GPIO, temp);
++
++ /* Update power state of all audio blocks depending are they
++ * muted or unused. */
++ tsc2301_power_ctrl(tsc, -1, 0);
++}
++
++#ifdef CONFIG_PM
++int tsc2301_mixer_suspend(struct tsc2301 *tsc)
++{
++ /* power down entire audio section inside TSC2301 in case the
++ * chip is still powered during the system sleep. However this driver
++ * doesn't require that chip is powered because registers are restored
++ * in function tsc2301_mixer_resume */
++ mutex_lock(&tsc->mixer->mutex);
++ tsc2301_gpio_power_down(tsc);
++ tsc->mixer->shadow_regs[PD_MISC_INDEX] |= TSC2301_REG_PD_MISC_APD;
++ tsc2301_write_reg(tsc, TSC2301_REG_PD_MISC,
++ tsc->mixer->shadow_regs[PD_MISC_INDEX]);
++ mutex_unlock(&tsc->mixer->mutex);
++ return 0;
++}
++
++void tsc2301_mixer_resume(struct tsc2301 *tsc)
++{
++ /* power up the TSC2301 audio section and restore registers */
++ mutex_lock(&tsc->mixer->mutex);
++ tsc->mixer->shadow_regs[PD_MISC_INDEX] &= ~TSC2301_REG_PD_MISC_APD;
++ tsc2301_flush_shadow_regs(tsc);
++ mutex_unlock(&tsc->mixer->mutex);
++}
++#endif
++
++void tsc2301_mixer_enable_mclk(struct device *dev)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++ struct tsc2301_mixer *mix = tsc->mixer;
++
++ mutex_lock(&mix->mutex);
++ if (!mix->mclk_enabled++ && tsc->enable_clock != NULL) {
++ tsc->enable_clock(dev);
++ }
++ tsc2301_power_ctrl(tsc, -1, 1);
++ mutex_unlock(&mix->mutex);
++}
++
++void tsc2301_mixer_disable_mclk(struct device *dev)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++ struct tsc2301_mixer *mix = tsc->mixer;
++
++ mutex_lock(&mix->mutex);
++ mix->mclk_enabled--;
++ tsc2301_power_ctrl(tsc, -1, 1);
++ if (!mix->mclk_enabled && tsc->disable_clock != NULL) {
++ tsc->disable_clock(dev);
++ }
++ mutex_unlock(&mix->mutex);
++}
++
++static void tsc2301_mixer_delayed_power_down(struct work_struct *work)
++{
++ struct tsc2301_mixer *mix = container_of(work, struct tsc2301_mixer,
++ delayed_power_down.work);
++ struct tsc2301 *tsc = mix->tsc;
++
++ mutex_lock(&mix->mutex);
++ if (!mix->delayed_pd_active) {
++ mutex_unlock(&mix->mutex);
++ return;
++ }
++ mix->delayed_pd_active = 0;
++ mutex_unlock(&mix->mutex);
++ tsc2301_mixer_disable_mclk(&tsc->spi->dev);
++}
++
++/*
++ * Allows audio controller driver to notify its usage of ADC and DAC
++ */
++void tsc2301_mixer_set_power(struct device *dev, int dac, int adc)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++
++ mutex_lock(&tsc->mixer->mutex);
++ tsc->mixer->adc_enabled = adc;
++ tsc->mixer->dac_enabled = dac;
++
++ /* update power state of all audio blocks */
++ tsc2301_power_ctrl(tsc, -1, 1);
++ mutex_unlock(&tsc->mixer->mutex);
++}
++
++/*
++ * Registers TSC2301 ALSA Mixer controls for the given sound card
++ */
++int tsc2301_mixer_register_controls(struct device *dev, struct snd_card *card)
++{
++ struct tsc2301 *tsc = dev_get_drvdata(dev);
++ struct tsc2301_mixer *mix = tsc->mixer;
++ int i, err;
++
++ /* Register ALSA mixer controls */
++ for (i = 0; i < ARRAY_SIZE(snd_tsc2301_controls); i++) {
++ err = snd_ctl_add(card,
++ snd_ctl_new1(&snd_tsc2301_controls[i], tsc));
++ if (err < 0)
++ return err;
++ }
++
++ if (!mix->n_mixer_gpios)
++ return 0;
++
++ /* Register additional GPIO controls if defined */
++ for (i = 0; i < mix->n_mixer_gpios; i++) {
++ const struct tsc2301_mixer_gpio *mg = mix->mixer_gpios + i;
++ struct snd_kcontrol *ctrlp;
++ struct snd_kcontrol_new ctrl =
++ TSC2301_BOOL((char *)mg->name, 0,
++ TSC2301_REG_GPIO, GPIO_INDEX,
++ mg->gpio, mg->inverted, mg->def_enable);
++
++ ctrlp = snd_ctl_new1(&ctrl, tsc);
++ err = snd_ctl_add(card, ctrlp);
++ if (err < 0)
++ return err;
++ }
++
++ return 0;
++}
++
++int tsc2301_mixer_init(struct tsc2301 *tsc,
++ struct tsc2301_platform_data *pdata)
++{
++ struct tsc2301_mixer *mix;
++ int err = 0;
++ u16 w;
++
++ mix = kzalloc(sizeof(*mix), GFP_KERNEL);
++ if (mix == NULL)
++ return -ENOMEM;
++ tsc->mixer = mix;
++
++ mix->tsc = tsc;
++ mutex_init(&mix->mutex);
++ mix->platform_init = pdata->codec_init;
++ mix->platform_cleanup = pdata->codec_cleanup;
++ mix->pll_output = pdata->pll_output;
++
++ INIT_DELAYED_WORK(&mix->delayed_power_down,
++ tsc2301_mixer_delayed_power_down);
++
++ /* initialize shadow register default values */
++ w = 0xc000;
++ w |= (pdata->mclk_ratio << 6) | (pdata->i2s_sample_rate << 2);
++ w |= pdata->i2s_format;
++ mix->shadow_regs[AUDCNTL_INDEX] = w;
++ mix->shadow_regs[ADCVOL_INDEX] = 0xd7d7;
++ mix->shadow_regs[DACVOL_INDEX] = 0xffff;
++ mix->shadow_regs[BPVOL_INDEX] = 0xe7e7;
++ mix->shadow_regs[PD_MISC_INDEX] = pdata->power_down_blocks;
++
++ /* if extra mixer controls configured, then configure associated
++ * GPIOs as output and drive their default state */
++ if (pdata->n_mixer_gpios) {
++ int i;
++
++ w = 0;
++ for (i = 0; i < pdata->n_mixer_gpios; i++) {
++ const struct tsc2301_mixer_gpio *mg;
++ int gpio;
++
++ mg = pdata->mixer_gpios + i;
++ gpio = mg->gpio;
++ w |= (1 << gpio) << 8;
++ w |= (mg->inverted ^ mg->def_enable) << gpio;
++ }
++ mix->shadow_regs[GPIO_INDEX] = w;
++
++ mix->mixer_gpios = kmalloc(sizeof(*pdata->mixer_gpios) *
++ pdata->n_mixer_gpios,
++ GFP_KERNEL);
++ if (mix->mixer_gpios == NULL) {
++ err = -ENOMEM;
++ goto err1;
++ }
++ memcpy(mix->mixer_gpios, pdata->mixer_gpios,
++ sizeof(*pdata->mixer_gpios) * pdata->n_mixer_gpios);
++ mix->n_mixer_gpios = pdata->n_mixer_gpios;
++ }
++
++ /* PLL control */
++ tsc2301_write_pll(tsc, pdata->pll_n, pdata->pll_a, pdata->pll_pdc,
++ 0, mix->pll_output ? 0 : 1);
++
++ tsc2301_flush_shadow_regs(tsc);
++
++ if (mix->platform_init != NULL) {
++ err = mix->platform_init(&tsc->spi->dev);
++ if (err < 0)
++ goto err2;
++ }
++
++ return 0;
++err2:
++ if (mix->mixer_gpios != NULL)
++ kfree(mix->mixer_gpios);
++err1:
++ kfree(mix);
++ return err;
++}
++
++void tsc2301_mixer_exit(struct tsc2301 *tsc)
++{
++ struct tsc2301_mixer *mixer = tsc->mixer;
++
++ if (mixer->platform_cleanup != NULL)
++ mixer->platform_cleanup(&tsc->spi->dev);
++
++ if (mixer->mixer_gpios != NULL)
++ kfree(mixer->mixer_gpios);
++}
++
++MODULE_AUTHOR("Jarkko Nikula <jarkko.nikula@nokia.com>");
++MODULE_LICENSE("GPL");
+--- /dev/null
++++ b/include/linux/spi/tsc2301.h
+@@ -0,0 +1,208 @@
++#ifndef _LINUX_SPI_TSC2301_H
++#define _LINUX_SPI_TSC2301_H
++
++#include <linux/types.h>
++#include <linux/timer.h>
++
++struct tsc2301_platform_data {
++ /*
++ * Keypad
++ */
++ s16 reset_gpio;
++ s16 keyb_int;
++ s16 keymap[16]; /* Set a key to a negative value if not used */
++ unsigned kp_rep:1; /* Enable keypad repeating */
++ char *keyb_name; /* Keyboard device name */
++
++ /*
++ * Touchscreen
++ */
++ s16 dav_int;
++ u16 ts_x_plate_ohm;
++ u32 ts_stab_time; /* voltage settling time */
++ u8 ts_hw_avg; /* HW assiseted averaging. Can be
++ 0, 4, 8, 16 samples per reading */
++ u32 ts_max_pressure;/* Samples with bigger pressure value will
++ be ignored, since the corresponding X, Y
++ values are unreliable */
++ u32 ts_touch_pressure; /* Pressure limit until we report a
++ touch event. After that we switch
++ to ts_max_pressure. */
++ u32 ts_pressure_fudge;
++ u32 ts_x_max;
++ u32 ts_x_fudge;
++ u32 ts_y_max;
++ u32 ts_y_fudge;
++
++ /*
++ * Audio
++ */
++ unsigned pll_pdc:4;
++ unsigned pll_a:4;
++ unsigned pll_n:4;
++ unsigned pll_output:1; /* Output PLL on GPIO_0 */
++
++ unsigned mclk_ratio:2;
++ unsigned i2s_sample_rate:4;
++ unsigned i2s_format:2;
++ /* Mask for audio blocks to be powered down */
++ u16 power_down_blocks;
++
++ /* Called after codec has been initialized, can be NULL */
++ int (* codec_init)(struct device *tsc2301_dev);
++ /* Called when codec is being removed, can be NULL */
++ void (* codec_cleanup)(struct device *tsc2301_dev);
++ int (*enable_clock)(struct device *dev);
++ void (*disable_clock)(struct device *dev);
++
++ const struct tsc2301_mixer_gpio {
++ const char *name;
++ unsigned gpio:4;
++ unsigned inverted:1;
++ unsigned def_enable:1; /* enable by default */
++ unsigned deactivate_on_pd:1; /* power-down flag */
++ } *mixer_gpios;
++ int n_mixer_gpios;
++};
++
++struct tsc2301_kp;
++struct tsc2301_ts;
++struct tsc2301_mixer;
++
++struct tsc2301 {
++ struct spi_device *spi;
++
++ s16 reset_gpio;
++ u16 config2_shadow;
++
++ struct tsc2301_kp *kp;
++ struct tsc2301_ts *ts;
++ struct tsc2301_mixer *mixer;
++
++ int (*enable_clock)(struct device *dev);
++ void (*disable_clock)(struct device *dev);
++};
++
++
++#define TSC2301_HZ 33000000
++
++#define TSC2301_REG(page, addr) (((page) << 11) | ((addr) << 5))
++#define TSC2301_REG_TO_PAGE(reg) (((reg) >> 11) & 0x03)
++#define TSC2301_REG_TO_ADDR(reg) (((reg) >> 5) & 0x1f)
++
++#define TSC2301_REG_X TSC2301_REG(0, 0)
++#define TSC2301_REG_Y TSC2301_REG(0, 1)
++#define TSC2301_REG_Z1 TSC2301_REG(0, 2)
++#define TSC2301_REG_Z2 TSC2301_REG(0, 3)
++#define TSC2301_REG_KPDATA TSC2301_REG(0, 4)
++#define TSC2301_REG_ADC TSC2301_REG(1, 0)
++#define TSC2301_REG_KEY TSC2301_REG(1, 1)
++#define TSC2301_REG_DAC TSC2301_REG(1, 2)
++#define TSC2301_REG_REF TSC2301_REG(1, 3)
++#define TSC2301_REG_RESET TSC2301_REG(1, 4)
++#define TSC2301_REG_CONFIG TSC2301_REG(1, 5)
++#define TSC2301_REG_CONFIG2 TSC2301_REG(1, 6)
++#define TSC2301_REG_KPMASK TSC2301_REG(1, 16)
++#define TSC2301_REG_AUDCNTL TSC2301_REG(2, 0)
++#define TSC2301_REG_ADCVOL TSC2301_REG(2, 1)
++#define TSC2301_REG_DACVOL TSC2301_REG(2, 2)
++#define TSC2301_REG_BPVOL TSC2301_REG(2, 3)
++#define TSC2301_REG_KEYCTL TSC2301_REG(2, 4)
++#define TSC2301_REG_PD_MISC TSC2301_REG(2, 5)
++#define TSC2301_REG_GPIO TSC2301_REG(2, 6)
++#define TSC2301_REG_ADCLKCFG TSC2301_REG(2, 27)
++
++#define TSC2301_REG_PD_MISC_APD (1 << 15)
++#define TSC2301_REG_PD_MISC_AVPD (1 << 14)
++#define TSC2301_REG_PD_MISC_ABPD (1 << 13)
++#define TSC2301_REG_PD_MISC_HAPD (1 << 12)
++#define TSC2301_REG_PD_MISC_MOPD (1 << 11)
++#define TSC2301_REG_PD_MISC_DAPD (1 << 10)
++#define TSC2301_REG_PD_MISC_ADPDL (1 << 9)
++#define TSC2301_REG_PD_MISC_ADPDR (1 << 8)
++#define TSC2301_REG_PD_MISC_PDSTS (1 << 7)
++#define TSC2301_REG_PD_MISC_MIBPD (1 << 6)
++#define TSC2301_REG_PD_MISC_OTSYN (1 << 2)
++
++/* I2S sample rate */
++#define TSC2301_I2S_SR_48000 0x00
++#define TSC2301_I2S_SR_44100 0x01
++#define TSC2301_I2S_SR_32000 0x02
++#define TSC2301_I2S_SR_24000 0x03
++#define TSC2301_I2S_SR_22050 0x04
++#define TSC2301_I2S_SR_16000 0x05
++#define TSC2301_I2S_SR_12000 0x06
++#define TSC2301_I2S_SR_11050 0x07
++#define TSC2301_I2S_SR_8000 0x08
++
++/* 16-bit, MSB-first. DAC Right-Justified, ADC Left-Justified */
++#define TSC2301_I2S_FORMAT0 0x00
++/* 20-bit, MSB-first. DAC Right-Justified, ADC Left-Justified */
++#define TSC2301_I2S_FORMAT1 0x01
++/* 20-bit, MSB-first. DAC Left-Justified, ADC Left-Justified */
++#define TSC2301_I2S_FORMAT2 0x02
++/* 20-bit, MSB-first */
++#define TSC2301_I2S_FORMAT3 0x03
++
++/* Master Clock Ratio */
++#define TSC2301_MCLK_256xFS 0x00 /* default */
++#define TSC2301_MCLK_384xFS 0x01
++#define TSC2301_MCLK_512xFS 0x02
++
++
++extern u16 tsc2301_read_reg(struct tsc2301 *tsc, int reg);
++extern void tsc2301_write_reg(struct tsc2301 *tsc, int reg, u16 val);
++extern void tsc2301_write_kbc(struct tsc2301 *tsc, int val);
++extern void tsc2301_write_pll(struct tsc2301 *tsc, int pll_n, int pll_a,
++ int pll_pdc, int pct_e, int pll_o);
++extern void tsc2301_read_buf(struct tsc2301 *tsc, int reg, u16 *buf, int len);
++
++#define TSC2301_DECL_MOD(module) \
++extern int tsc2301_##module##_init(struct tsc2301 *tsc, \
++ struct tsc2301_platform_data *pdata); \
++extern void tsc2301_##module##_exit(struct tsc2301 *tsc); \
++extern int tsc2301_##module##_suspend(struct tsc2301 *tsc); \
++extern void tsc2301_##module##_resume(struct tsc2301 *tsc);
++
++#define TSC2301_DECL_EMPTY_MOD(module) \
++static inline int tsc2301_##module##_init(struct tsc2301 *tsc, \
++ struct tsc2301_platform_data *pdata) \
++{ \
++ return 0; \
++} \
++static inline void tsc2301_##module##_exit(struct tsc2301 *tsc) {} \
++static inline int tsc2301_##module##_suspend(struct tsc2301 *tsc) \
++{ \
++ return 0; \
++} \
++static inline void tsc2301_##module##_resume(struct tsc2301 *tsc) {}
++
++#ifdef CONFIG_KEYBOARD_TSC2301
++TSC2301_DECL_MOD(kp)
++void tsc2301_kp_restart(struct tsc2301 *tsc);
++#else
++TSC2301_DECL_EMPTY_MOD(kp)
++static inline void tsc2301_kp_restart(struct tsc2301 *tsc) {}
++#endif
++
++#ifdef CONFIG_TOUCHSCREEN_TSC2301
++TSC2301_DECL_MOD(ts)
++#else
++TSC2301_DECL_EMPTY_MOD(ts)
++#endif
++
++#ifdef CONFIG_SPI_TSC2301_AUDIO
++TSC2301_DECL_MOD(mixer)
++extern void tsc2301_mixer_set_power(struct device *tsc_dev, int dac, int adc);
++
++struct snd_card;
++extern int tsc2301_mixer_register_controls(struct device *tsc_dev,
++ struct snd_card *card);
++#else
++TSC2301_DECL_EMPTY_MOD(mixer)
++#endif
++
++extern void tsc2301_mixer_enable_mclk(struct device *tsc_dev);
++extern void tsc2301_mixer_disable_mclk(struct device *tsc_dev);
++
++#endif
--- /dev/null
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -25,6 +25,8 @@
+ #include <linux/usb/musb.h>
+ #include <sound/tlv320aic3x.h>
+ #include <linux/spi/tsc2005.h>
++#include <linux/input.h>
++#include <linux/i2c/lm8323.h>
+
+ #include <asm/mach/arch.h>
+ #include <asm/mach-types.h>
+@@ -37,6 +39,7 @@
+ #include <plat/onenand.h>
+ #include <plat/mmc.h>
+ #include <plat/serial.h>
++#include <plat/gpio-switch.h>
+
+ #include "mux.h"
+
+@@ -104,6 +107,152 @@ extern struct mipid_platform_data n8x0_m
+ extern void n8x0_mipid_init(void);
+ extern void n8x0_blizzard_init(void);
+
++/* We map the FN key as LALT to workaround an X keycode problem.
++ * The XKB map needs to be adjusted to support this. */
++#define MAP_FN_AS_LEFTALT
++
++static s16 rx44_keymap[LM8323_KEYMAP_SIZE] = {
++ [0x01] = KEY_Q,
++ [0x02] = KEY_K,
++ [0x03] = KEY_O,
++ [0x04] = KEY_P,
++ [0x05] = KEY_BACKSPACE,
++ [0x06] = KEY_A,
++ [0x07] = KEY_S,
++ [0x08] = KEY_D,
++ [0x09] = KEY_F,
++ [0x0a] = KEY_G,
++ [0x0b] = KEY_H,
++ [0x0c] = KEY_J,
++
++ [0x11] = KEY_W,
++ [0x12] = KEY_F4,
++ [0x13] = KEY_L,
++ [0x14] = KEY_APOSTROPHE,
++ [0x16] = KEY_Z,
++ [0x17] = KEY_X,
++ [0x18] = KEY_C,
++ [0x19] = KEY_V,
++ [0x1a] = KEY_B,
++ [0x1b] = KEY_N,
++ [0x1c] = KEY_LEFTSHIFT, /* Actually, this is both shift keys */
++ [0x1f] = KEY_F7,
++
++ [0x21] = KEY_E,
++ [0x22] = KEY_SEMICOLON,
++ [0x23] = KEY_MINUS,
++ [0x24] = KEY_EQUAL,
++#ifdef MAP_FN_AS_LEFTALT
++ [0x2b] = KEY_LEFTALT,
++#else
++ [0x2b] = KEY_FN,
++#endif
++ [0x2c] = KEY_M,
++ [0x2f] = KEY_F8,
++
++ [0x31] = KEY_R,
++ [0x32] = KEY_RIGHTCTRL,
++ [0x34] = KEY_SPACE,
++ [0x35] = KEY_COMMA,
++ [0x37] = KEY_UP,
++ [0x3c] = KEY_COMPOSE,
++ [0x3f] = KEY_F6,
++
++ [0x41] = KEY_T,
++ [0x44] = KEY_DOT,
++ [0x46] = KEY_RIGHT,
++ [0x4f] = KEY_F5,
++ [0x51] = KEY_Y,
++ [0x53] = KEY_DOWN,
++ [0x55] = KEY_ENTER,
++ [0x5f] = KEY_ESC,
++
++ [0x61] = KEY_U,
++ [0x64] = KEY_LEFT,
++
++ [0x71] = KEY_I,
++ [0x75] = KEY_KPENTER,
++};
++
++static struct lm8323_platform_data lm8323_pdata = {
++ .repeat = 0, /* Repeat is handled in userspace for now. */
++ .keymap = rx44_keymap,
++ .size_x = 8,
++ .size_y = 12,
++ .debounce_time = 12,
++ .active_time = 500,
++
++ .name = "Internal keyboard",
++ .pwm_names[0] = "n810::keyboard",
++ .pwm_names[1] = "n810::cover",
++};
++
++#define OMAP_TAG_NOKIA_BT 0x4e01
++
++struct omap_bluetooth_config {
++ u8 chip_type;
++ u8 bt_wakeup_gpio;
++ u8 host_wakeup_gpio;
++ u8 reset_gpio;
++ u8 bt_uart;
++ u8 bd_addr[6];
++ u8 bt_sysclk;
++};
++
++static struct platform_device n8x0_bt_device = {
++ .name = "hci_h4p",
++ .id = -1,
++ .num_resources = 0,
++};
++
++void __init n8x0_bt_init(void)
++{
++ const struct omap_bluetooth_config *bt_config;
++
++ bt_config = (void *) omap_get_config(OMAP_TAG_NOKIA_BT,
++ struct omap_bluetooth_config);
++ n8x0_bt_device.dev.platform_data = (void *) bt_config;
++ if (platform_device_register(&n8x0_bt_device) < 0)
++ BUG();
++}
++
++static struct omap_gpio_switch n8x0_gpio_switches[] __initdata = {
++ {
++ .name = "headphone",
++ .gpio = -1,
++ .debounce_rising = 200,
++ .debounce_falling = 200,
++ }, {
++ .name = "cam_act",
++ .gpio = -1,
++ .debounce_rising = 200,
++ .debounce_falling = 200,
++ }, {
++ .name = "cam_turn",
++ .gpio = -1,
++ .debounce_rising = 100,
++ .debounce_falling = 100,
++ }, {
++ .name = "slide",
++ .gpio = -1,
++ .debounce_rising = 200,
++ .debounce_falling = 200,
++ }, {
++ .name = "kb_lock",
++ .gpio = -1,
++ .debounce_rising = 200,
++ .debounce_falling = 200,
++ },
++};
++
++static void __init n8x0_gpio_switches_init(void)
++{
++ /* The switches are actually registered through ATAG mechanism.
++ * This just updates the parameters (thus .gpio is -1) */
++ omap_register_gpio_switches(n8x0_gpio_switches,
++ ARRAY_SIZE(n8x0_gpio_switches));
++}
++
+ #define TUSB6010_ASYNC_CS 1
+ #define TUSB6010_SYNC_CS 4
+ #define TUSB6010_GPIO_INT 58
+@@ -799,6 +948,11 @@ static struct aic3x_pdata n810_aic33_dat
+ };
+
+ static struct i2c_board_info n810_i2c_board_info_2[] __initdata = {
++ {
++ I2C_BOARD_INFO("lm8323", 0x45),
++ .irq = OMAP_GPIO_IRQ(109),
++ .platform_data = &lm8323_pdata,
++ },
+ {
+ I2C_BOARD_INFO("tlv320aic3x", 0x18),
+ .platform_data = &n810_aic33_data,
+@@ -856,7 +1010,9 @@ static inline void board_serial_init(voi
+ static void __init n8x0_init_machine(void)
+ {
+ omap2420_mux_init(board_mux, OMAP_PACKAGE_ZAC);
++ n8x0_gpio_switches_init();
+ n8x0_cbus_init();
++ n8x0_bt_init();
+
+ /* FIXME: add n810 spi devices */
+ tsc2005_set_config();
--- /dev/null
+From f0bb9e67f0f13021e5033fed3dfe8ef78fe6a538 Mon Sep 17 00:00:00 2001
+From: Marat Radchenko <marat@slonopotamus.org>
+Date: Tue, 18 Oct 2011 21:52:56 +0400
+Subject: [PATCH 2/2] N800: add TSC2301 board info
+
+This patch adds TSC2301 init logic to N800 board file
+---
+ arch/arm/mach-omap2/board-n8x0.c | 141 ++++++++++++++++++++++++++++++++++++--
+ 1 files changed, 135 insertions(+), 6 deletions(-)
+
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -27,6 +27,7 @@
+ #include <linux/spi/tsc2005.h>
+ #include <linux/input.h>
+ #include <linux/i2c/lm8323.h>
++#include <linux/spi/tsc2301.h>
+
+ #include <asm/mach/arch.h>
+ #include <asm/mach-types.h>
+@@ -63,7 +64,75 @@ static struct omap2_mcspi_device_config
+ };
+ #endif
+
+-static void __init tsc2005_set_config(void)
++#ifdef CONFIG_TOUCHSCREEN_TSC2301
++
++#define N800_KEYB_IRQ_GPIO 109
++
++static struct tsc2301_platform_data tsc2301_config = {
++ .reset_gpio = 118,
++ .keymap = {
++ -1, /* Event for bit 0 */
++ KEY_UP, /* Event for bit 1 (up) */
++ KEY_F5, /* Event for bit 2 (home) */
++ -1, /* Event for bit 3 */
++ KEY_LEFT, /* Event for bit 4 (left) */
++ KEY_ENTER, /* Event for bit 5 (enter) */
++ KEY_RIGHT, /* Event for bit 6 (right) */
++ -1, /* Event for bit 7 */
++ KEY_ESC, /* Event for bit 8 (cycle) */
++ KEY_DOWN, /* Event for bit 9 (down) */
++ KEY_F4, /* Event for bit 10 (menu) */
++ -1, /* Event for bit 11 */
++ KEY_F8, /* Event for bit 12 (Zoom-) */
++ KEY_F6, /* Event for bit 13 (FS) */
++ KEY_F7, /* Event for bit 14 (Zoom+) */
++ -1, /* Event for bit 15 */
++ },
++ .kp_rep = 0,
++ .keyb_name = "Internal keypad",
++};
++
++static struct omap2_mcspi_device_config tsc2301_mcspi_config = {
++ .turbo_mode = 0,
++ .single_channel = 1,
++};
++
++/*
++ TODO(Marat Radchenko): better pass GPIO to tsc2301 driver and let it
++ allocate irq itself (as it is already done for touchscreen)
++ */
++static void tsc2301_dev_init(void)
++{
++ int r;
++ int gpio = N800_KEYB_IRQ_GPIO;
++
++ r = gpio_request(gpio, "tsc2301 KBD IRQ");
++ if (r >= 0) {
++ gpio_direction_input(gpio);
++ tsc2301_config.keyb_int = gpio_to_irq(gpio);
++ } else {
++ printk(KERN_ERR "unable to get KBD GPIO");
++ }
++
++ gpio = 103;
++ r = gpio_request(gpio, "tsc2301 DAV IRQ");
++ if (r >= 0) {
++ gpio_direction_input(gpio);
++ tsc2301_config.dav_int = gpio_to_irq(gpio);
++ } else {
++ printk(KERN_ERR "unable to get DAV GPIO");
++ }
++}
++
++#else
++
++static void __init tsc2301_dev_init(void)
++{
++}
++
++#endif
++
++static void __init n8x0_ts_set_config(void)
+ {
+ const struct omap_lcd_config *conf;
+
+@@ -94,6 +163,37 @@ static void __init tsc2005_set_config(vo
+ tsc2005_config.ts_x_plate_ohm = 200;
+ }
+ #endif
++
++#ifdef CONFIG_TOUCHSCREEN_TSC2301
++ if (strcmp(conf->panel_name, "lph8923") == 0) {
++ tsc2301_config.ts_x_plate_ohm = 180;
++ tsc2301_config.ts_hw_avg = 8;
++ tsc2301_config.ts_max_pressure = 2048;
++ tsc2301_config.ts_touch_pressure = 400;
++ tsc2301_config.ts_stab_time = 100;
++ tsc2301_config.ts_pressure_fudge = 2;
++ tsc2301_config.ts_x_max = 4096;
++ tsc2301_config.ts_x_fudge = 4;
++ tsc2301_config.ts_y_max = 4096;
++ tsc2301_config.ts_y_fudge = 7;
++ } else if (strcmp(conf->panel_name, "ls041y3") == 0) {
++ tsc2301_config.ts_x_plate_ohm = 280;
++ tsc2301_config.ts_hw_avg = 8;
++ tsc2301_config.ts_touch_pressure = 400;
++ tsc2301_config.ts_max_pressure = 2048;
++ tsc2301_config.ts_stab_time = 1000;
++ tsc2301_config.ts_pressure_fudge = 2;
++ tsc2301_config.ts_x_max = 4096;
++ tsc2301_config.ts_x_fudge = 4;
++ tsc2301_config.ts_y_max = 4096;
++ tsc2301_config.ts_y_fudge = 7;
++ } else {
++ printk(KERN_ERR "Unknown panel type, set default "
++ "touchscreen configuration\n");
++ tsc2301_config.ts_x_plate_ohm = 200;
++ tsc2301_config.ts_stab_time = 100;
++ }
++#endif
+ }
+ }
+
+@@ -347,13 +447,12 @@ static void __init n8x0_usb_init(void) {
+
+ #endif /*CONFIG_USB_MUSB_TUSB6010 */
+
+-
+ static struct omap2_mcspi_device_config p54spi_mcspi_config = {
+ .turbo_mode = 0,
+ .single_channel = 1,
+ };
+
+-static struct spi_board_info n800_spi_board_info[] __initdata = {
++static struct spi_board_info n8x0_common_spi_board_info[] __initdata = {
+ {
+ .modalias = "lcd_mipid",
+ .bus_num = 1,
+@@ -369,6 +468,10 @@ static struct spi_board_info n800_spi_bo
+ .max_speed_hz = 48000000,
+ .controller_data = &p54spi_mcspi_config,
+ },
++};
++
++static struct spi_board_info n810_spi_board_info[] __initdata = {
++#ifdef CONFIG_TOUCHSCREEN_TSC2005
+ {
+ .modalias = "tsc2005",
+ .bus_num = 1,
+@@ -378,6 +481,20 @@ static struct spi_board_info n800_spi_bo
+ .controller_data = &tsc2005_mcspi_config,
+ .platform_data = &tsc2005_config,
+ },
++#endif
++};
++
++static struct spi_board_info n800_spi_board_info[] __initdata = {
++#if defined(CONFIG_TOUCHSCREEN_TSC2301)
++ {
++ .modalias = "tsc2301",
++ .bus_num = 1,
++ .chip_select = 0,
++ .max_speed_hz = 6000000,
++ .controller_data = &tsc2301_mcspi_config,
++ .platform_data = &tsc2301_config,
++ },
++#endif
+ };
+
+ #if defined(CONFIG_MTD_ONENAND_OMAP2) || \
+@@ -1015,9 +1132,17 @@ static void __init n8x0_init_machine(voi
+ n8x0_bt_init();
+
+ /* FIXME: add n810 spi devices */
+- tsc2005_set_config();
+- spi_register_board_info(n800_spi_board_info,
+- ARRAY_SIZE(n800_spi_board_info));
++ n8x0_ts_set_config();
++
++ spi_register_board_info(n8x0_common_spi_board_info,
++ ARRAY_SIZE(n8x0_common_spi_board_info));
++ if (machine_is_nokia_n800())
++ spi_register_board_info(n800_spi_board_info,
++ ARRAY_SIZE(n800_spi_board_info));
++ else
++ spi_register_board_info(n810_spi_board_info,
++ ARRAY_SIZE(n810_spi_board_info));
++
+ omap_register_i2c_bus(1, 400, n8x0_i2c_board_info_1,
+ ARRAY_SIZE(n8x0_i2c_board_info_1));
+ omap_register_i2c_bus(2, 400, NULL, 0);
+@@ -1027,6 +1152,8 @@ static void __init n8x0_init_machine(voi
+ board_serial_init();
+ n8x0_mipid_init();
+ n8x0_blizzard_init();
++ if (machine_is_nokia_n800())
++ tsc2301_dev_init();
+ omap_sdrc_init(NULL, NULL);
+ gpmc_onenand_init(board_onenand_data);
+ n8x0_mmc_init();
--- /dev/null
+---
+ arch/arm/mach-omap2/board-n8x0.c | 73 +++++++++++++++++++++++++++++++++++++++
+ 1 file changed, 73 insertions(+)
+
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -316,6 +316,77 @@ void __init n8x0_bt_init(void)
+ BUG();
+ }
+
++struct gpio_switch_input_dev {
++ struct input_dev *idev;
++ unsigned int swcode;
++};
++
++static struct gpio_switch_input_dev *slide_input;
++static struct gpio_switch_input_dev *kblock_input;
++
++static void n8x0_gpio_switch_input_notify(struct gpio_switch_input_dev *gdev,
++ int state)
++{
++ if (gdev) {
++ input_report_switch(gdev->idev, gdev->swcode, state);
++ input_sync(gdev->idev);
++ }
++}
++
++static void n8x0_slide_notify(void *data, int state)
++{
++ n8x0_gpio_switch_input_notify(slide_input, state);
++}
++
++static void n8x0_kb_lock_notify(void *data, int state)
++{
++ n8x0_gpio_switch_input_notify(kblock_input, state);
++}
++
++static struct gpio_switch_input_dev * __init gpioswitch_input_init(
++ const char *name,
++ unsigned int swcode)
++{
++ struct gpio_switch_input_dev *gdev;
++ int err;
++
++ gdev = kzalloc(sizeof(*gdev), GFP_KERNEL);
++ if (!gdev)
++ goto error;
++ gdev->swcode = swcode;
++
++ gdev->idev = input_allocate_device();
++ if (!gdev->idev)
++ goto err_free;
++
++ gdev->idev->evbit[0] = BIT_MASK(EV_SW);
++ gdev->idev->swbit[BIT_WORD(swcode)] = BIT_MASK(swcode);
++ gdev->idev->name = name;
++
++ err = input_register_device(gdev->idev);
++ if (err)
++ goto err_free_idev;
++
++ return gdev;
++
++err_free_idev:
++ input_free_device(gdev->idev);
++err_free:
++ kfree(gdev);
++error:
++ return NULL;
++}
++
++static int __init n8x0_gpio_switches_input_init(void)
++{
++ slide_input = gpioswitch_input_init("slide", SW_KEYPAD_SLIDE);
++ kblock_input = gpioswitch_input_init("kb_lock", SW_LID);
++ if (WARN_ON(!slide_input || !kblock_input))
++ return -ENODEV;
++ return 0;
++}
++late_initcall(n8x0_gpio_switches_input_init);
++
+ static struct omap_gpio_switch n8x0_gpio_switches[] __initdata = {
+ {
+ .name = "headphone",
+@@ -337,11 +408,13 @@ static struct omap_gpio_switch n8x0_gpio
+ .gpio = -1,
+ .debounce_rising = 200,
+ .debounce_falling = 200,
++ .notify = n8x0_slide_notify,
+ }, {
+ .name = "kb_lock",
+ .gpio = -1,
+ .debounce_rising = 200,
+ .debounce_falling = 200,
++ .notify = n8x0_kb_lock_notify,
+ },
+ };
+
--- /dev/null
+---
+ drivers/bluetooth/Kconfig | 10
+ drivers/bluetooth/Makefile | 1
+ drivers/bluetooth/hci_h4p/Makefile | 7
+ drivers/bluetooth/hci_h4p/core.c | 1043 ++++++++++++++++++++++++++++++++++++
+ drivers/bluetooth/hci_h4p/fw-csr.c | 149 +++++
+ drivers/bluetooth/hci_h4p/fw-ti.c | 90 +++
+ drivers/bluetooth/hci_h4p/fw.c | 155 +++++
+ drivers/bluetooth/hci_h4p/hci_h4p.h | 183 ++++++
+ drivers/bluetooth/hci_h4p/sysfs.c | 84 ++
+ drivers/bluetooth/hci_h4p/uart.c | 169 +++++
+ 10 files changed, 1891 insertions(+)
+
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/core.c
+@@ -0,0 +1,1043 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/module.h>
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/errno.h>
++#include <linux/delay.h>
++#include <linux/spinlock.h>
++#include <linux/serial_reg.h>
++#include <linux/skbuff.h>
++#include <linux/timer.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/clk.h>
++#include <linux/gpio.h>
++
++#include <mach/hardware.h>
++#include <mach/board.h>
++#include <mach/irqs.h>
++#include <plat/serial.h>
++
++#include <net/bluetooth/bluetooth.h>
++#include <net/bluetooth/hci_core.h>
++#include <net/bluetooth/hci.h>
++
++#include "hci_h4p.h"
++
++#define PM_TIMEOUT 200
++
++struct omap_bluetooth_config {
++ u8 chip_type;
++ u8 bt_wakeup_gpio;
++ u8 host_wakeup_gpio;
++ u8 reset_gpio;
++ u8 bt_uart;
++ u8 bd_addr[6];
++ u8 bt_sysclk;
++};
++
++/* This should be used in function that cannot release clocks */
++static void hci_h4p_set_clk(struct hci_h4p_info *info, int *clock, int enable)
++{
++ unsigned long flags;
++
++ spin_lock_irqsave(&info->clocks_lock, flags);
++ if (enable && !*clock) {
++ NBT_DBG_POWER("Enabling %p\n", clock);
++ clk_enable(info->uart_fclk);
++#ifdef CONFIG_ARCH_OMAP2
++ if (cpu_is_omap24xx()) {
++ clk_enable(info->uart_iclk);
++ //omap2_block_sleep();
++ }
++#endif
++ }
++ if (!enable && *clock) {
++ NBT_DBG_POWER("Disabling %p\n", clock);
++ clk_disable(info->uart_fclk);
++#ifdef CONFIG_ARCH_OMAP2
++ if (cpu_is_omap24xx()) {
++ clk_disable(info->uart_iclk);
++ //omap2_allow_sleep();
++ }
++#endif
++ }
++
++ *clock = enable;
++ spin_unlock_irqrestore(&info->clocks_lock, flags);
++}
++
++/* Power management functions */
++static void hci_h4p_disable_tx(struct hci_h4p_info *info)
++{
++ NBT_DBG_POWER("\n");
++
++ if (!info->pm_enabled)
++ return;
++
++ mod_timer(&info->tx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++}
++
++static void hci_h4p_enable_tx(struct hci_h4p_info *info)
++{
++ NBT_DBG_POWER("\n");
++
++ if (!info->pm_enabled)
++ return;
++
++ del_timer_sync(&info->tx_pm_timer);
++ if (info->tx_pm_enabled) {
++ info->tx_pm_enabled = 0;
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ gpio_set_value(info->bt_wakeup_gpio, 1);
++ }
++}
++
++static void hci_h4p_tx_pm_timer(unsigned long data)
++{
++ struct hci_h4p_info *info;
++
++ NBT_DBG_POWER("\n");
++
++ info = (struct hci_h4p_info *)data;
++
++ if (hci_h4p_inb(info, UART_LSR) & UART_LSR_TEMT) {
++ gpio_set_value(info->bt_wakeup_gpio, 0);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++ info->tx_pm_enabled = 1;
++ }
++ else {
++ mod_timer(&info->tx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++ }
++}
++
++static void hci_h4p_disable_rx(struct hci_h4p_info *info)
++{
++ if (!info->pm_enabled)
++ return;
++
++ mod_timer(&info->rx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++}
++
++static void hci_h4p_enable_rx(struct hci_h4p_info *info)
++{
++ unsigned long flags;
++
++ if (!info->pm_enabled)
++ return;
++
++ del_timer_sync(&info->rx_pm_timer);
++ spin_lock_irqsave(&info->lock, flags);
++ if (info->rx_pm_enabled) {
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_RDI);
++ __hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_RTS);
++ info->rx_pm_enabled = 0;
++ }
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++static void hci_h4p_rx_pm_timer(unsigned long data)
++{
++ unsigned long flags;
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++
++ spin_lock_irqsave(&info->lock, flags);
++ if (!(hci_h4p_inb(info, UART_LSR) & UART_LSR_DR)) {
++ __hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_RTS);
++ hci_h4p_set_rts(info, 0);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_RDI);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
++ info->rx_pm_enabled = 1;
++ }
++ else {
++ mod_timer(&info->rx_pm_timer, jiffies + msecs_to_jiffies(PM_TIMEOUT));
++ }
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++/* Negotiation functions */
++int hci_h4p_send_alive_packet(struct hci_h4p_info *info)
++{
++ NBT_DBG("Sending alive packet\n");
++
++ if (!info->alive_cmd_skb)
++ return -EINVAL;
++
++ /* Keep reference to buffer so we can reuse it */
++ info->alive_cmd_skb = skb_get(info->alive_cmd_skb);
++
++ skb_queue_tail(&info->txq, info->alive_cmd_skb);
++ tasklet_schedule(&info->tx_task);
++
++ NBT_DBG("Alive packet sent\n");
++
++ return 0;
++}
++
++static void hci_h4p_alive_packet(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ NBT_DBG("Received alive packet\n");
++ if (skb->data[1] == 0xCC) {
++ complete(&info->init_completion);
++ }
++
++ kfree_skb(skb);
++}
++
++static int hci_h4p_send_negotiation(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ NBT_DBG("Sending negotiation..\n");
++
++ hci_h4p_change_speed(info, INIT_SPEED);
++
++ info->init_error = 0;
++ init_completion(&info->init_completion);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ if (!wait_for_completion_interruptible_timeout(&info->init_completion,
++ msecs_to_jiffies(1000)))
++ return -ETIMEDOUT;
++
++ NBT_DBG("Negotiation sent\n");
++ return info->init_error;
++}
++
++static void hci_h4p_negotiation_packet(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++ int err = 0;
++
++ if (skb->data[1] == 0x20) {
++ /* Change to operational settings */
++ hci_h4p_set_rts(info, 0);
++
++ err = hci_h4p_wait_for_cts(info, 0, 100);
++ if (err < 0)
++ goto neg_ret;
++
++ hci_h4p_change_speed(info, MAX_BAUD_RATE);
++
++ err = hci_h4p_wait_for_cts(info, 1, 100);
++ if (err < 0)
++ goto neg_ret;
++
++ hci_h4p_set_auto_ctsrts(info, 1, UART_EFR_CTS | UART_EFR_RTS);
++
++ err = hci_h4p_send_alive_packet(info);
++ if (err < 0)
++ goto neg_ret;
++ } else {
++ dev_err(info->dev, "Could not negotiate hci_h4p settings\n");
++ err = -EINVAL;
++ goto neg_ret;
++ }
++
++ kfree_skb(skb);
++ return;
++
++neg_ret:
++ info->init_error = err;
++ complete(&info->init_completion);
++ kfree_skb(skb);
++}
++
++/* H4 packet handling functions */
++static int hci_h4p_get_hdr_len(struct hci_h4p_info *info, u8 pkt_type)
++{
++ long retval;
++
++ switch (pkt_type) {
++ case H4_EVT_PKT:
++ retval = HCI_EVENT_HDR_SIZE;
++ break;
++ case H4_ACL_PKT:
++ retval = HCI_ACL_HDR_SIZE;
++ break;
++ case H4_SCO_PKT:
++ retval = HCI_SCO_HDR_SIZE;
++ break;
++ case H4_NEG_PKT:
++ retval = 11;
++ break;
++ case H4_ALIVE_PKT:
++ retval = 3;
++ break;
++ default:
++ dev_err(info->dev, "Unknown H4 packet type 0x%.2x\n", pkt_type);
++ retval = -1;
++ break;
++ }
++
++ return retval;
++}
++
++static unsigned int hci_h4p_get_data_len(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++ long retval = -1;
++ struct hci_event_hdr *evt_hdr;
++ struct hci_acl_hdr *acl_hdr;
++ struct hci_sco_hdr *sco_hdr;
++
++ switch (bt_cb(skb)->pkt_type) {
++ case H4_EVT_PKT:
++ evt_hdr = (struct hci_event_hdr *)skb->data;
++ retval = evt_hdr->plen;
++ break;
++ case H4_ACL_PKT:
++ acl_hdr = (struct hci_acl_hdr *)skb->data;
++ retval = le16_to_cpu(acl_hdr->dlen);
++ break;
++ case H4_SCO_PKT:
++ sco_hdr = (struct hci_sco_hdr *)skb->data;
++ retval = sco_hdr->dlen;
++ break;
++ case H4_NEG_PKT:
++ retval = 0;
++ break;
++ case H4_ALIVE_PKT:
++ retval = 0;
++ break;
++ }
++
++ return retval;
++}
++
++static inline void hci_h4p_recv_frame(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++
++ if (unlikely(!test_bit(HCI_RUNNING, &info->hdev->flags))) {
++ NBT_DBG("fw_event\n");
++ hci_h4p_parse_fw_event(info, skb);
++ } else {
++ hci_recv_frame(skb);
++ NBT_DBG("Frame sent to upper layer\n");
++ }
++}
++
++static void hci_h4p_rx_tasklet(unsigned long data)
++{
++ u8 byte;
++ unsigned long flags;
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++
++ NBT_DBG("tasklet woke up\n");
++ NBT_DBG_TRANSFER("rx_tasklet woke up\ndata ");
++
++ while (hci_h4p_inb(info, UART_LSR) & UART_LSR_DR) {
++ byte = hci_h4p_inb(info, UART_RX);
++ if (info->garbage_bytes) {
++ info->garbage_bytes--;
++ continue;
++ }
++ if (info->rx_skb == NULL) {
++ info->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC | GFP_DMA);
++ if (!info->rx_skb) {
++ dev_err(info->dev, "Can't allocate memory for new packet\n");
++ goto finish_task;
++ }
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ info->rx_skb->dev = (void *)info->hdev;
++ }
++ info->hdev->stat.byte_rx++;
++ NBT_DBG_TRANSFER_NF("0x%.2x ", byte);
++ switch (info->rx_state) {
++ case WAIT_FOR_PKT_TYPE:
++ bt_cb(info->rx_skb)->pkt_type = byte;
++ info->rx_count = hci_h4p_get_hdr_len(info, byte);
++ if (info->rx_count < 0) {
++ info->hdev->stat.err_rx++;
++ kfree_skb(info->rx_skb);
++ info->rx_skb = NULL;
++ } else {
++ info->rx_state = WAIT_FOR_HEADER;
++ }
++ break;
++ case WAIT_FOR_HEADER:
++ info->rx_count--;
++ *skb_put(info->rx_skb, 1) = byte;
++ if (info->rx_count == 0) {
++ info->rx_count = hci_h4p_get_data_len(info, info->rx_skb);
++ if (info->rx_count > skb_tailroom(info->rx_skb)) {
++ dev_err(info->dev, "Frame is %ld bytes too long.\n",
++ info->rx_count - skb_tailroom(info->rx_skb));
++ kfree_skb(info->rx_skb);
++ info->rx_skb = NULL;
++ info->garbage_bytes = info->rx_count - skb_tailroom(info->rx_skb);
++ break;
++ }
++ info->rx_state = WAIT_FOR_DATA;
++
++ if (bt_cb(info->rx_skb)->pkt_type == H4_NEG_PKT) {
++ hci_h4p_negotiation_packet(info, info->rx_skb);
++ info->rx_skb = NULL;
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ goto finish_task;
++ }
++ if (bt_cb(info->rx_skb)->pkt_type == H4_ALIVE_PKT) {
++ hci_h4p_alive_packet(info, info->rx_skb);
++ info->rx_skb = NULL;
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ goto finish_task;
++ }
++ }
++ break;
++ case WAIT_FOR_DATA:
++ info->rx_count--;
++ *skb_put(info->rx_skb, 1) = byte;
++ if (info->rx_count == 0) {
++ /* H4+ devices should allways send word aligned packets */
++ if (!(info->rx_skb->len % 2)) {
++ info->garbage_bytes++;
++ }
++ hci_h4p_recv_frame(info, info->rx_skb);
++ info->rx_skb = NULL;
++ }
++ break;
++ default:
++ WARN_ON(1);
++ break;
++ }
++ }
++
++finish_task:
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_RDI);
++ spin_unlock_irqrestore(&info->lock, flags);
++
++ NBT_DBG_TRANSFER_NF("\n");
++ NBT_DBG("rx_ended\n");
++}
++
++static void hci_h4p_tx_tasklet(unsigned long data)
++{
++ unsigned int sent = 0;
++ unsigned long flags;
++ struct sk_buff *skb;
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++
++ NBT_DBG("tasklet woke up\n");
++ NBT_DBG_TRANSFER("tx_tasklet woke up\n data ");
++
++ skb = skb_dequeue(&info->txq);
++ if (!skb) {
++ /* No data in buffer */
++ NBT_DBG("skb ready\n");
++ hci_h4p_disable_tx(info);
++ return;
++ }
++
++ /* Copy data to tx fifo */
++ while (!(hci_h4p_inb(info, UART_OMAP_SSR) & UART_OMAP_SSR_TXFULL) &&
++ (sent < skb->len)) {
++ NBT_DBG_TRANSFER_NF("0x%.2x ", skb->data[sent]);
++ hci_h4p_outb(info, UART_TX, skb->data[sent]);
++ sent++;
++ }
++
++ info->hdev->stat.byte_tx += sent;
++ NBT_DBG_TRANSFER_NF("\n");
++ if (skb->len == sent) {
++ kfree_skb(skb);
++ } else {
++ skb_pull(skb, sent);
++ skb_queue_head(&info->txq, skb);
++ }
++
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) | UART_IER_THRI);
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++static irqreturn_t hci_h4p_interrupt(int irq, void *data)
++{
++ struct hci_h4p_info *info = (struct hci_h4p_info *)data;
++ u8 iir, msr;
++ int ret;
++ unsigned long flags;
++
++ ret = IRQ_NONE;
++
++ iir = hci_h4p_inb(info, UART_IIR);
++ if (iir & UART_IIR_NO_INT) {
++ dev_err(info->dev, "Interrupt but no reason irq 0x%.2x\n", iir);
++ return IRQ_HANDLED;
++ }
++
++ NBT_DBG("In interrupt handler iir 0x%.2x\n", iir);
++
++ iir &= UART_IIR_ID;
++
++ if (iir == UART_IIR_MSI) {
++ msr = hci_h4p_inb(info, UART_MSR);
++ ret = IRQ_HANDLED;
++ }
++ if (iir == UART_IIR_RLSI) {
++ hci_h4p_inb(info, UART_RX);
++ hci_h4p_inb(info, UART_LSR);
++ ret = IRQ_HANDLED;
++ }
++
++ if (iir == UART_IIR_RDI) {
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_RDI);
++ spin_unlock_irqrestore(&info->lock, flags);
++ tasklet_schedule(&info->rx_task);
++ ret = IRQ_HANDLED;
++ }
++
++ if (iir == UART_IIR_THRI) {
++ spin_lock_irqsave(&info->lock, flags);
++ hci_h4p_outb(info, UART_IER, hci_h4p_inb(info, UART_IER) & ~UART_IER_THRI);
++ spin_unlock_irqrestore(&info->lock, flags);
++ tasklet_schedule(&info->tx_task);
++ ret = IRQ_HANDLED;
++ }
++
++ return ret;
++}
++
++static irqreturn_t hci_h4p_wakeup_interrupt(int irq, void *dev_inst)
++{
++ struct hci_h4p_info *info = dev_inst;
++ int should_wakeup;
++ struct hci_dev *hdev;
++
++ if (!info->hdev)
++ return IRQ_HANDLED;
++
++ hdev = info->hdev;
++
++ if (!test_bit(HCI_RUNNING, &hdev->flags))
++ return IRQ_HANDLED;
++
++ should_wakeup = gpio_get_value(info->host_wakeup_gpio);
++ NBT_DBG_POWER("gpio interrupt %d\n", should_wakeup);
++ if (should_wakeup) {
++ hci_h4p_enable_rx(info);
++ } else {
++ hci_h4p_disable_rx(info);
++ }
++
++ return IRQ_HANDLED;
++}
++
++static int hci_h4p_reset(struct hci_h4p_info *info)
++{
++ int err;
++
++ hci_h4p_init_uart(info);
++ hci_h4p_set_rts(info, 0);
++
++ gpio_set_value(info->reset_gpio, 0);
++ msleep(100);
++ gpio_set_value(info->bt_wakeup_gpio, 1);
++ gpio_set_value(info->reset_gpio, 1);
++ msleep(100);
++
++ err = hci_h4p_wait_for_cts(info, 1, 10);
++ if (err < 0) {
++ dev_err(info->dev, "No cts from bt chip\n");
++ return err;
++ }
++
++ hci_h4p_set_rts(info, 1);
++
++ return 0;
++}
++
++/* hci callback functions */
++static int hci_h4p_hci_flush(struct hci_dev *hdev)
++{
++ struct hci_h4p_info *info;
++ info = hdev->driver_data;
++
++ skb_queue_purge(&info->txq);
++
++ return 0;
++}
++
++static int hci_h4p_hci_open(struct hci_dev *hdev)
++{
++ struct hci_h4p_info *info;
++ int err;
++ struct sk_buff *neg_cmd_skb;
++ struct sk_buff_head fw_queue;
++
++ info = hdev->driver_data;
++
++ if (test_bit(HCI_RUNNING, &hdev->flags))
++ return 0;
++
++ skb_queue_head_init(&fw_queue);
++ err = hci_h4p_read_fw(info, &fw_queue);
++ if (err < 0) {
++ dev_err(info->dev, "Cannot read firmware\n");
++ return err;
++ }
++ neg_cmd_skb = skb_dequeue(&fw_queue);
++ if (!neg_cmd_skb) {
++ err = -EPROTO;
++ goto err_clean;
++ }
++ info->alive_cmd_skb = skb_dequeue(&fw_queue);
++ if (!info->alive_cmd_skb) {
++ err = -EPROTO;
++ goto err_clean;
++ }
++
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
++
++ tasklet_enable(&info->tx_task);
++ tasklet_enable(&info->rx_task);
++ info->rx_state = WAIT_FOR_PKT_TYPE;
++ info->rx_count = 0;
++ info->garbage_bytes = 0;
++ info->rx_skb = NULL;
++ info->pm_enabled = 0;
++ init_completion(&info->fw_completion);
++
++ err = hci_h4p_reset(info);
++ if (err < 0)
++ goto err_clean;
++
++ err = hci_h4p_send_negotiation(info, neg_cmd_skb);
++ neg_cmd_skb = NULL;
++ if (err < 0)
++ goto err_clean;
++
++ err = hci_h4p_send_fw(info, &fw_queue);
++ if (err < 0) {
++ dev_err(info->dev, "Sending firmware failed.\n");
++ goto err_clean;
++ }
++
++ kfree_skb(info->alive_cmd_skb);
++ info->alive_cmd_skb = NULL;
++ info->pm_enabled = 1;
++ info->tx_pm_enabled = 1;
++ info->rx_pm_enabled = 0;
++ set_bit(HCI_RUNNING, &hdev->flags);
++
++ NBT_DBG("hci up and running\n");
++ return 0;
++
++err_clean:
++ hci_h4p_hci_flush(hdev);
++ tasklet_disable(&info->tx_task);
++ tasklet_disable(&info->rx_task);
++ hci_h4p_reset_uart(info);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
++ gpio_set_value(info->reset_gpio, 0);
++ gpio_set_value(info->bt_wakeup_gpio, 0);
++ skb_queue_purge(&fw_queue);
++ kfree_skb(neg_cmd_skb);
++ neg_cmd_skb = NULL;
++ kfree_skb(info->alive_cmd_skb);
++ info->alive_cmd_skb = NULL;
++ kfree_skb(info->rx_skb);
++
++ return err;
++}
++
++static int hci_h4p_hci_close(struct hci_dev *hdev)
++{
++ struct hci_h4p_info *info = hdev->driver_data;
++
++ if (!test_and_clear_bit(HCI_RUNNING, &hdev->flags))
++ return 0;
++
++ hci_h4p_hci_flush(hdev);
++ del_timer_sync(&info->tx_pm_timer);
++ del_timer_sync(&info->rx_pm_timer);
++ tasklet_disable(&info->tx_task);
++ tasklet_disable(&info->rx_task);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 1);
++ hci_h4p_reset_uart(info);
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++ hci_h4p_set_clk(info, &info->rx_clocks_en, 0);
++ gpio_set_value(info->reset_gpio, 0);
++ gpio_set_value(info->bt_wakeup_gpio, 0);
++ kfree_skb(info->rx_skb);
++
++ return 0;
++}
++
++static void hci_h4p_hci_destruct(struct hci_dev *hdev)
++{
++}
++
++static int hci_h4p_hci_send_frame(struct sk_buff *skb)
++{
++ struct hci_h4p_info *info;
++ struct hci_dev *hdev = (struct hci_dev *)skb->dev;
++ int err = 0;
++
++ if (!hdev) {
++ printk(KERN_WARNING "hci_h4p: Frame for unknown device\n");
++ return -ENODEV;
++ }
++
++ NBT_DBG("dev %p, skb %p\n", hdev, skb);
++
++ info = hdev->driver_data;
++
++ if (!test_bit(HCI_RUNNING, &hdev->flags)) {
++ dev_warn(info->dev, "Frame for non-running device\n");
++ return -EIO;
++ }
++
++ switch (bt_cb(skb)->pkt_type) {
++ case HCI_COMMAND_PKT:
++ hdev->stat.cmd_tx++;
++ break;
++ case HCI_ACLDATA_PKT:
++ hdev->stat.acl_tx++;
++ break;
++ case HCI_SCODATA_PKT:
++ hdev->stat.sco_tx++;
++ break;
++ }
++
++ /* Push frame type to skb */
++ *skb_push(skb, 1) = (bt_cb(skb)->pkt_type);
++ /* We should allways send word aligned data to h4+ devices */
++ if (skb->len % 2) {
++ err = skb_pad(skb, 1);
++ }
++ if (err)
++ return err;
++
++ hci_h4p_enable_tx(info);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ return 0;
++}
++
++static int hci_h4p_hci_ioctl(struct hci_dev *hdev, unsigned int cmd, unsigned long arg)
++{
++ return -ENOIOCTLCMD;
++}
++
++static int hci_h4p_register_hdev(struct hci_h4p_info *info)
++{
++ struct hci_dev *hdev;
++
++ /* Initialize and register HCI device */
++
++ hdev = hci_alloc_dev();
++ if (!hdev) {
++ dev_err(info->dev, "Can't allocate memory for device\n");
++ return -ENOMEM;
++ }
++ info->hdev = hdev;
++
++ hdev->dev_type = HCI_UART;
++ hdev->driver_data = info;
++
++ hdev->open = hci_h4p_hci_open;
++ hdev->close = hci_h4p_hci_close;
++ hdev->flush = hci_h4p_hci_flush;
++ hdev->send = hci_h4p_hci_send_frame;
++ hdev->destruct = hci_h4p_hci_destruct;
++ hdev->ioctl = hci_h4p_hci_ioctl;
++
++ hdev->owner = THIS_MODULE;
++
++ if (hci_register_dev(hdev) < 0) {
++ dev_err(info->dev, "hci_h4p: Can't register HCI device %s.\n", hdev->name);
++ return -ENODEV;
++ }
++
++ return 0;
++}
++
++static int hci_h4p_probe(struct platform_device *pdev)
++{
++ struct omap_bluetooth_config *bt_config;
++ struct hci_h4p_info *info;
++ int irq, err;
++
++ dev_info(&pdev->dev, "Registering HCI H4P device\n");
++ info = kzalloc(sizeof(struct hci_h4p_info), GFP_KERNEL);
++ if (!info)
++ return -ENOMEM;
++
++ info->dev = &pdev->dev;
++ info->pm_enabled = 0;
++ info->tx_pm_enabled = 0;
++ info->rx_pm_enabled = 0;
++ info->garbage_bytes = 0;
++ info->tx_clocks_en = 0;
++ info->rx_clocks_en = 0;
++ tasklet_init(&info->tx_task, hci_h4p_tx_tasklet, (unsigned long)info);
++ tasklet_init(&info->rx_task, hci_h4p_rx_tasklet, (unsigned long)info);
++ /* hci_h4p_hci_open assumes that tasklet is disabled in startup */
++ tasklet_disable(&info->tx_task);
++ tasklet_disable(&info->rx_task);
++ spin_lock_init(&info->lock);
++ spin_lock_init(&info->clocks_lock);
++ skb_queue_head_init(&info->txq);
++ init_timer(&info->tx_pm_timer);
++ info->tx_pm_timer.function = hci_h4p_tx_pm_timer;
++ info->tx_pm_timer.data = (unsigned long)info;
++ init_timer(&info->rx_pm_timer);
++ info->rx_pm_timer.function = hci_h4p_rx_pm_timer;
++ info->rx_pm_timer.data = (unsigned long)info;
++
++ if (pdev->dev.platform_data == NULL) {
++ dev_err(&pdev->dev, "Could not get Bluetooth config data\n");
++ return -ENODATA;
++ }
++
++ bt_config = pdev->dev.platform_data;
++ info->chip_type = bt_config->chip_type;
++ info->bt_wakeup_gpio = bt_config->bt_wakeup_gpio;
++ info->host_wakeup_gpio = bt_config->host_wakeup_gpio;
++ info->reset_gpio = bt_config->reset_gpio;
++ info->bt_sysclk = bt_config->bt_sysclk;
++
++ NBT_DBG("RESET gpio: %d\n", info->reset_gpio);
++ NBT_DBG("BTWU gpio: %d\n", info->bt_wakeup_gpio);
++ NBT_DBG("HOSTWU gpio: %d\n", info->host_wakeup_gpio);
++ NBT_DBG("Uart: %d\n", bt_config->bt_uart);
++ NBT_DBG("sysclk: %d\n", info->bt_sysclk);
++
++ err = gpio_request(info->reset_gpio, "BT reset");
++ if (err < 0) {
++ dev_err(&pdev->dev, "Cannot get GPIO line %d\n",
++ info->reset_gpio);
++ kfree(info);
++ goto cleanup;
++ }
++
++ err = gpio_request(info->bt_wakeup_gpio, "BT wakeup");
++ if (err < 0)
++ {
++ dev_err(info->dev, "Cannot get GPIO line 0x%d",
++ info->bt_wakeup_gpio);
++ gpio_free(info->reset_gpio);
++ kfree(info);
++ goto cleanup;
++ }
++
++ err = gpio_request(info->host_wakeup_gpio, "BT host wakeup");
++ if (err < 0)
++ {
++ dev_err(info->dev, "Cannot get GPIO line %d",
++ info->host_wakeup_gpio);
++ gpio_free(info->reset_gpio);
++ gpio_free(info->bt_wakeup_gpio);
++ kfree(info);
++ goto cleanup;
++ }
++
++ gpio_direction_output(info->reset_gpio, 0);
++ gpio_direction_output(info->bt_wakeup_gpio, 0);
++ gpio_direction_input(info->host_wakeup_gpio);
++
++//FIXME
++#if defined(CONFIG_ARCH_OMAP1)
++# define OMAP_UART1_BASE OMAP1_UART1_BASE
++# define OMAP_UART2_BASE OMAP1_UART2_BASE
++# define OMAP_UART3_BASE OMAP1_UART3_BASE
++#elif defined(CONFIG_ARCH_OMAP2)
++# define OMAP_UART1_BASE OMAP2_UART1_BASE
++# define OMAP_UART2_BASE OMAP2_UART2_BASE
++# define OMAP_UART3_BASE OMAP2_UART3_BASE
++#elif defined(CONFIG_ARCH_OMAP3)
++# define OMAP_UART1_BASE OMAP3_UART1_BASE
++# define OMAP_UART2_BASE OMAP3_UART2_BASE
++# define OMAP_UART3_BASE OMAP3_UART3_BASE
++#elif defined(CONFIG_ARCH_OMAP4)
++# define OMAP_UART1_BASE OMAP4_UART1_BASE
++# define OMAP_UART2_BASE OMAP4_UART2_BASE
++# define OMAP_UART3_BASE OMAP4_UART3_BASE
++#else
++# error
++#endif
++ switch (bt_config->bt_uart) {
++ case 1:
++ if (cpu_is_omap16xx()) {
++ irq = INT_UART1;
++ info->uart_fclk = clk_get(NULL, "uart1_ck");
++ } else if (cpu_is_omap24xx()) {
++ irq = INT_24XX_UART1_IRQ;
++ info->uart_iclk = clk_get(NULL, "uart1_ick");
++ info->uart_fclk = clk_get(NULL, "uart1_fck");
++ }
++ /* FIXME: Use platform_get_resource for the port */
++ info->uart_base = ioremap(OMAP_UART1_BASE, 0x16);
++ if (!info->uart_base)
++ goto cleanup;
++ break;
++ case 2:
++ if (cpu_is_omap16xx()) {
++ irq = INT_UART2;
++ info->uart_fclk = clk_get(NULL, "uart2_ck");
++ } else {
++ irq = INT_24XX_UART2_IRQ;
++ info->uart_iclk = clk_get(NULL, "uart2_ick");
++ info->uart_fclk = clk_get(NULL, "uart2_fck");
++ }
++ /* FIXME: Use platform_get_resource for the port */
++ info->uart_base = ioremap(OMAP_UART2_BASE, 0x16);
++ if (!info->uart_base)
++ goto cleanup;
++ break;
++ case 3:
++ if (cpu_is_omap16xx()) {
++ irq = INT_UART3;
++ info->uart_fclk = clk_get(NULL, "uart3_ck");
++ } else {
++ irq = INT_24XX_UART3_IRQ;
++ info->uart_iclk = clk_get(NULL, "uart3_ick");
++ info->uart_fclk = clk_get(NULL, "uart3_fck");
++ }
++ /* FIXME: Use platform_get_resource for the port */
++ info->uart_base = ioremap(OMAP_UART3_BASE, 0x16);
++ if (!info->uart_base)
++ goto cleanup;
++ break;
++ default:
++ dev_err(info->dev, "No uart defined\n");
++ goto cleanup;
++ }
++
++ info->irq = irq;
++ err = request_irq(irq, hci_h4p_interrupt, 0, "hci_h4p", (void *)info);
++ if (err < 0) {
++ dev_err(info->dev, "hci_h4p: unable to get IRQ %d\n", irq);
++ goto cleanup;
++ }
++
++ err = request_irq(gpio_to_irq(info->host_wakeup_gpio),
++ hci_h4p_wakeup_interrupt,
++ IRQF_TRIGGER_FALLING | IRQF_TRIGGER_RISING,
++ "hci_h4p_wkup", (void *)info);
++ if (err < 0) {
++ dev_err(info->dev, "hci_h4p: unable to get wakeup IRQ %d\n",
++ gpio_to_irq(info->host_wakeup_gpio));
++ free_irq(irq, (void *)info);
++ goto cleanup;
++ }
++
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 1);
++ hci_h4p_set_auto_ctsrts(info, 0, UART_EFR_CTS | UART_EFR_RTS);
++ err = hci_h4p_init_uart(info);
++ if (err < 0)
++ goto cleanup_irq;
++ err = hci_h4p_reset(info);
++ if (err < 0)
++ goto cleanup_irq;
++ err = hci_h4p_wait_for_cts(info, 1, 10);
++ if (err < 0)
++ goto cleanup_irq;
++ hci_h4p_set_clk(info, &info->tx_clocks_en, 0);
++
++ platform_set_drvdata(pdev, info);
++ err = hci_h4p_sysfs_create_files(info->dev);
++ if (err < 0)
++ goto cleanup_irq;
++
++ if (hci_h4p_register_hdev(info) < 0) {
++ dev_err(info->dev, "failed to register hci_h4p hci device\n");
++ goto cleanup_irq;
++ }
++ gpio_set_value(info->reset_gpio, 0);
++
++ return 0;
++
++cleanup_irq:
++ free_irq(irq, (void *)info);
++ free_irq(gpio_to_irq(info->host_wakeup_gpio), (void *)info);
++cleanup:
++ gpio_set_value(info->reset_gpio, 0);
++ gpio_free(info->reset_gpio);
++ gpio_free(info->bt_wakeup_gpio);
++ gpio_free(info->host_wakeup_gpio);
++ kfree(info);
++
++ return err;
++
++}
++
++static int hci_h4p_remove(struct platform_device *dev)
++{
++ struct hci_h4p_info *info;
++
++ info = platform_get_drvdata(dev);
++
++ hci_h4p_hci_close(info->hdev);
++ free_irq(gpio_to_irq(info->host_wakeup_gpio), (void *) info);
++ hci_free_dev(info->hdev);
++ gpio_free(info->reset_gpio);
++ gpio_free(info->bt_wakeup_gpio);
++ gpio_free(info->host_wakeup_gpio);
++ free_irq(info->irq, (void *) info);
++ kfree(info);
++
++ return 0;
++}
++
++static struct platform_driver hci_h4p_driver = {
++ .probe = hci_h4p_probe,
++ .remove = hci_h4p_remove,
++ .driver = {
++ .name = "hci_h4p",
++ },
++};
++
++static int __init hci_h4p_init(void)
++{
++ int err = 0;
++
++ /* Register the driver with LDM */
++ err = platform_driver_register(&hci_h4p_driver);
++ if (err < 0)
++ printk(KERN_WARNING "failed to register hci_h4p driver\n");
++
++ return err;
++}
++
++static void __exit hci_h4p_exit(void)
++{
++ platform_driver_unregister(&hci_h4p_driver);
++}
++
++module_init(hci_h4p_init);
++module_exit(hci_h4p_exit);
++
++MODULE_DESCRIPTION("h4 driver with nokia extensions");
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Ville Tervo");
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/fw.c
+@@ -0,0 +1,155 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/skbuff.h>
++#include <linux/firmware.h>
++#include <linux/clk.h>
++
++#include <net/bluetooth/bluetooth.h>
++
++#include "hci_h4p.h"
++
++#define BT_CHIP_TI 2
++#define BT_CHIP_CSR 1
++
++static int fw_pos;
++
++/* Firmware handling */
++static int hci_h4p_open_firmware(struct hci_h4p_info *info,
++ const struct firmware **fw_entry)
++{
++ int err;
++
++ fw_pos = 0;
++ NBT_DBG_FW("Opening %d firmware\n", info->chip_type);
++ switch (info->chip_type) {
++ case BT_CHIP_TI:
++ err = request_firmware(fw_entry, "brf6150fw.bin", info->dev);
++ break;
++ case BT_CHIP_CSR:
++ err = request_firmware(fw_entry, "bc4fw.bin", info->dev);
++ break;
++ default:
++ dev_err(info->dev, "Invalid chip type\n");
++ *fw_entry = NULL;
++ err = -EINVAL;
++ }
++
++ return err;
++}
++
++static void hci_h4p_close_firmware(const struct firmware *fw_entry)
++{
++ release_firmware(fw_entry);
++}
++
++/* Read fw. Return length of the command. If no more commands in
++ * fw 0 is returned. In error case return value is negative.
++ */
++static int hci_h4p_read_fw_cmd(struct hci_h4p_info *info, struct sk_buff **skb,
++ const struct firmware *fw_entry, int how)
++{
++ unsigned int cmd_len;
++
++ if (fw_pos >= fw_entry->size) {
++ return 0;
++ }
++
++ cmd_len = fw_entry->data[fw_pos++];
++ if (!cmd_len)
++ return 0;
++
++ if (fw_pos + cmd_len > fw_entry->size) {
++ dev_err(info->dev, "Corrupted firmware image\n");
++ return -EMSGSIZE;
++ }
++
++ *skb = bt_skb_alloc(cmd_len, how);
++ if (!*skb) {
++ dev_err(info->dev, "Cannot reserve memory for buffer\n");
++ return -ENOMEM;
++ }
++ memcpy(skb_put(*skb, cmd_len), &fw_entry->data[fw_pos], cmd_len);
++
++ fw_pos += cmd_len;
++
++ return (*skb)->len;
++}
++
++int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
++{
++ const struct firmware *fw_entry = NULL;
++ struct sk_buff *skb = NULL;
++ int err;
++
++ err = hci_h4p_open_firmware(info, &fw_entry);
++ if (err < 0 || !fw_entry)
++ goto err_clean;
++
++ while ((err = hci_h4p_read_fw_cmd(info, &skb, fw_entry, GFP_KERNEL))) {
++ if (err < 0 || !skb)
++ goto err_clean;
++
++ skb_queue_tail(fw_queue, skb);
++ }
++
++err_clean:
++ hci_h4p_close_firmware(fw_entry);
++ return err;
++}
++
++int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
++{
++ int err;
++
++ switch(info->chip_type) {
++ case BT_CHIP_CSR:
++ err = hci_h4p_bc4_send_fw(info, fw_queue);
++ break;
++ case BT_CHIP_TI:
++ err = hci_h4p_brf6150_send_fw(info, fw_queue);
++ break;
++ default:
++ dev_err(info->dev, "Don't know how to send firmware\n");
++ err = -EINVAL;
++ }
++
++ return err;
++}
++
++void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ switch (info->chip_type) {
++ case BT_CHIP_CSR:
++ hci_h4p_bc4_parse_fw_event(info, skb);
++ break;
++ case BT_CHIP_TI:
++ hci_h4p_brf6150_parse_fw_event(info, skb);
++ break;
++ default:
++ dev_err(info->dev, "Don't know how to parse fw event\n");
++ info->fw_error = -EINVAL;
++ }
++
++ return;
++}
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/fw-csr.c
+@@ -0,0 +1,149 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/skbuff.h>
++#include <linux/delay.h>
++#include <linux/serial_reg.h>
++
++#include "hci_h4p.h"
++
++void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb)
++{
++ /* Check if this is fw packet */
++ if (skb->data[0] != 0xff) {
++ hci_recv_frame(skb);
++ return;
++ }
++
++ if (skb->data[11] || skb->data[12]) {
++ dev_err(info->dev, "Firmware sending command failed\n");
++ info->fw_error = -EPROTO;
++ }
++
++ kfree_skb(skb);
++ complete(&info->fw_completion);
++}
++
++int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
++ struct sk_buff_head *fw_queue)
++{
++ struct sk_buff *skb;
++ unsigned int offset;
++ int retries, count, i;
++
++ info->fw_error = 0;
++
++ NBT_DBG_FW("Sending firmware\n");
++ skb = skb_dequeue(fw_queue);
++
++ if (!skb)
++ return -ENOMSG;
++
++ info->bdaddr[0] = 0x00;
++ info->bdaddr[1] = 0x1D;
++ info->bdaddr[2] = 0x6E;
++ info->bdaddr[3] = 0xD4;
++ info->bdaddr[4] = 0xF0;
++ info->bdaddr[5] = 0x37;
++
++ /* Check if this is bd_address packet */
++ if (skb->data[15] == 0x01 && skb->data[16] == 0x00) {
++ dev_info(info->dev, "bd_address packet found\n");
++ offset = 21;
++ skb->data[offset + 1] = 0x00;
++ skb->data[offset + 5] = 0x00;
++ skb->data[offset + 7] = info->bdaddr[0];
++ skb->data[offset + 6] = info->bdaddr[1];
++ skb->data[offset + 4] = info->bdaddr[2];
++ skb->data[offset + 0] = info->bdaddr[3];
++ skb->data[offset + 3] = info->bdaddr[4];
++ skb->data[offset + 2] = info->bdaddr[5];
++ }
++
++ for (i = 0; i < 6; i++) {
++ if (info->bdaddr[i] != 0x00)
++ break;
++ }
++
++ /* if (i > 5) {
++ dev_info(info->dev, "Valid bluetooth address not found.\n");
++ kfree_skb(skb);
++ return -ENODEV;
++ } */
++
++ for (count = 1; ; count++) {
++ NBT_DBG_FW("Sending firmware command %d\n", count);
++ init_completion(&info->fw_completion);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ skb = skb_dequeue(fw_queue);
++ if (!skb)
++ break;
++
++ if (!wait_for_completion_timeout(&info->fw_completion,
++ msecs_to_jiffies(1000))) {
++ dev_err(info->dev, "No reply to fw command\n");
++ return -ETIMEDOUT;
++ }
++
++ if (info->fw_error) {
++ dev_err(info->dev, "FW error\n");
++ return -EPROTO;
++ }
++ };
++
++ /* Wait for chip warm reset */
++ retries = 100;
++ while ((!skb_queue_empty(&info->txq) ||
++ !(hci_h4p_inb(info, UART_LSR) & UART_LSR_TEMT)) &&
++ retries--) {
++ msleep(10);
++ }
++ if (!retries) {
++ dev_err(info->dev, "Transmitter not empty\n");
++ return -ETIMEDOUT;
++ }
++
++ hci_h4p_change_speed(info, BC4_MAX_BAUD_RATE);
++
++ if (hci_h4p_wait_for_cts(info, 1, 100)) {
++ dev_err(info->dev, "cts didn't go down after final speed change\n");
++ return -ETIMEDOUT;
++ }
++
++ retries = 100;
++ do {
++ init_completion(&info->init_completion);
++ hci_h4p_send_alive_packet(info);
++ retries--;
++ } while (!wait_for_completion_timeout(&info->init_completion, 100) &&
++ retries > 0);
++
++ if (!retries) {
++ dev_err(info->dev, "No alive reply after speed change\n");
++ return -ETIMEDOUT;
++ }
++
++ return 0;
++}
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/fw-ti.c
+@@ -0,0 +1,90 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/skbuff.h>
++
++#include "hci_h4p.h"
++
++void hci_h4p_brf6150_parse_fw_event(struct hci_h4p_info *info,
++ struct sk_buff *skb)
++{
++ struct hci_fw_event *ev;
++ int err = 0;
++
++ if (bt_cb(skb)->pkt_type != H4_EVT_PKT) {
++ dev_err(info->dev, "Got non event fw packet.\n");
++ err = -EPROTO;
++ goto ret;
++ }
++
++ ev = (struct hci_fw_event *)skb->data;
++ if (ev->hev.evt != HCI_EV_CMD_COMPLETE) {
++ dev_err(info->dev, "Got non cmd complete fw event\n");
++ err = -EPROTO;
++ goto ret;
++ }
++
++ if (ev->status != 0) {
++ dev_err(info->dev, "Got error status from fw command\n");
++ err = -EPROTO;
++ goto ret;
++ }
++
++ret:
++ info->fw_error = err;
++ complete(&info->fw_completion);
++}
++
++int hci_h4p_brf6150_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue)
++{
++ struct sk_buff *skb;
++ int err = 0;
++
++ info->fw_error = 0;
++
++ while ((skb = skb_dequeue(fw_queue)) != NULL) {
++ /* We should allways send word aligned data to h4+ devices */
++ if (skb->len % 2) {
++ err = skb_pad(skb, 1);
++ }
++ if (err)
++ return err;
++
++ init_completion(&info->fw_completion);
++ skb_queue_tail(&info->txq, skb);
++ tasklet_schedule(&info->tx_task);
++
++ if (!wait_for_completion_timeout(&info->fw_completion, HZ)) {
++ dev_err(info->dev, "Timeout while sending brf6150 fw\n");
++ return -ETIMEDOUT;
++ }
++
++ if (info->fw_error) {
++ dev_err(info->dev, "There was fw_error while sending bfr6150 fw\n");
++ return -EPROTO;
++ }
++ }
++ NBT_DBG_FW("Firmware sent\n");
++
++ return 0;
++}
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/hci_h4p.h
+@@ -0,0 +1,183 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <mach/board.h>
++
++#include <net/bluetooth/bluetooth.h>
++#include <net/bluetooth/hci_core.h>
++#include <net/bluetooth/hci.h>
++
++#ifndef __DRIVERS_BLUETOOTH_HCI_H4P_H
++#define __DRIVERS_BLUETOOTH_HCI_H4P_H
++
++#define UART_SYSC_OMAP_RESET 0x03
++#define UART_SYSS_RESETDONE 0x01
++#define UART_OMAP_SCR_EMPTY_THR 0x08
++#define UART_OMAP_SCR_WAKEUP 0x10
++#define UART_OMAP_SSR_WAKEUP 0x02
++#define UART_OMAP_SSR_TXFULL 0x01
++
++#if 0
++#define NBT_DBG(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG(...)
++#endif
++
++#if 0
++#define NBT_DBG_FW(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_FW(...)
++#endif
++
++#if 0
++#define NBT_DBG_POWER(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_POWER(...)
++#endif
++
++#if 0
++#define NBT_DBG_TRANSFER(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_TRANSFER(...)
++#endif
++
++#if 0
++#define NBT_DBG_TRANSFER_NF(fmt, arg...) printk(fmt "" , ## arg)
++#else
++#define NBT_DBG_TRANSFER_NF(...)
++#endif
++
++#if 0
++#define NBT_DBG_DMA(fmt, arg...) printk("%s: " fmt "" , __FUNCTION__ , ## arg)
++#else
++#define NBT_DBG_DMA(...)
++#endif
++
++struct hci_h4p_info {
++ struct hci_dev *hdev;
++ spinlock_t lock;
++
++ void __iomem *uart_base;
++ unsigned long uart_phys_base;
++ int irq;
++ struct device *dev;
++ u8 bdaddr[6];
++ u8 chip_type;
++ u8 bt_wakeup_gpio;
++ u8 host_wakeup_gpio;
++ u8 reset_gpio;
++ u8 bt_sysclk;
++
++
++ struct sk_buff_head fw_queue;
++ struct sk_buff *alive_cmd_skb;
++ struct completion init_completion;
++ struct completion fw_completion;
++ int fw_error;
++ int init_error;
++
++ struct sk_buff_head txq;
++ struct tasklet_struct tx_task;
++
++ struct sk_buff *rx_skb;
++ long rx_count;
++ unsigned long rx_state;
++ unsigned long garbage_bytes;
++ struct tasklet_struct rx_task;
++
++ int pm_enabled;
++ int tx_pm_enabled;
++ int rx_pm_enabled;
++ struct timer_list tx_pm_timer;
++ struct timer_list rx_pm_timer;
++
++ int tx_clocks_en;
++ int rx_clocks_en;
++ spinlock_t clocks_lock;
++ struct clk *uart_iclk;
++ struct clk *uart_fclk;
++};
++
++#define MAX_BAUD_RATE 921600
++#define BC4_MAX_BAUD_RATE 3692300
++#define UART_CLOCK 48000000
++#define BT_INIT_DIVIDER 320
++#define BT_BAUDRATE_DIVIDER 384000000
++#define BT_SYSCLK_DIV 1000
++#define INIT_SPEED 120000
++
++#define H4_TYPE_SIZE 1
++
++/* H4+ packet types */
++#define H4_CMD_PKT 0x01
++#define H4_ACL_PKT 0x02
++#define H4_SCO_PKT 0x03
++#define H4_EVT_PKT 0x04
++#define H4_NEG_PKT 0x06
++#define H4_ALIVE_PKT 0x07
++
++/* TX states */
++#define WAIT_FOR_PKT_TYPE 1
++#define WAIT_FOR_HEADER 2
++#define WAIT_FOR_DATA 3
++
++struct hci_fw_event {
++ struct hci_event_hdr hev;
++ struct hci_ev_cmd_complete cmd;
++ u8 status;
++} __attribute__ ((packed));
++
++struct hci_bc4_set_bdaddr {
++ u8 type;
++ struct hci_command_hdr cmd_hdr;
++} __attribute__ ((packed));
++
++int hci_h4p_send_alive_packet(struct hci_h4p_info *info);
++
++void hci_h4p_bc4_parse_fw_event(struct hci_h4p_info *info,
++ struct sk_buff *skb);
++int hci_h4p_bc4_send_fw(struct hci_h4p_info *info,
++ struct sk_buff_head *fw_queue);
++
++void hci_h4p_brf6150_parse_fw_event(struct hci_h4p_info *info,
++ struct sk_buff *skb);
++int hci_h4p_brf6150_send_fw(struct hci_h4p_info *info,
++ struct sk_buff_head *fw_queue);
++
++int hci_h4p_read_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
++int hci_h4p_send_fw(struct hci_h4p_info *info, struct sk_buff_head *fw_queue);
++void hci_h4p_parse_fw_event(struct hci_h4p_info *info, struct sk_buff *skb);
++
++int hci_h4p_sysfs_create_files(struct device *dev);
++
++void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val);
++u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset);
++void hci_h4p_set_rts(struct hci_h4p_info *info, int active);
++int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active, int timeout_ms);
++void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
++void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which);
++void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed);
++int hci_h4p_reset_uart(struct hci_h4p_info *info);
++int hci_h4p_init_uart(struct hci_h4p_info *info);
++
++#endif /* __DRIVERS_BLUETOOTH_HCI_H4P_H */
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/Makefile
+@@ -0,0 +1,7 @@
++#
++# Makefile for the Linux Bluetooth HCI device drivers.
++#
++
++obj-$(CONFIG_BT_HCIH4P) += hci_h4p.o
++
++hci_h4p-objs := core.o fw.o uart.o sysfs.o fw-ti.o fw-csr.o
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/sysfs.c
+@@ -0,0 +1,84 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/kernel.h>
++#include <linux/init.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++
++#include "hci_h4p.h"
++
++#ifdef CONFIG_SYSFS
++
++static ssize_t hci_h4p_store_bdaddr(struct device *dev, struct device_attribute *attr,
++ const char *buf, size_t count)
++{
++ struct hci_h4p_info *info = (struct hci_h4p_info*)dev_get_drvdata(dev);
++ unsigned int bdaddr[6];
++ int ret, i;
++
++ dev_info(info->dev, "HCI_H4P_STORE_BDADDR called\n");
++
++ ret = sscanf(buf, "%2x:%2x:%2x:%2x:%2x:%2x\n",
++ &bdaddr[0], &bdaddr[1], &bdaddr[2],
++ &bdaddr[3], &bdaddr[4], &bdaddr[5]);
++
++ if (ret != 6) {
++ dev_info(info->dev, "bdaddr isn't found\n");
++ return -EINVAL;
++ }
++
++ //for (i = 0; i < 6; i++)
++ //info->bdaddr[i] = bdaddr[i] & 0xff;
++
++ info->bdaddr[0] = 0x00;
++ info->bdaddr[1] = 0x1D;
++ info->bdaddr[2] = 0x6E;
++ info->bdaddr[3] = 0xD4;
++ info->bdaddr[4] = 0xF0;
++ info->bdaddr[5] = 0x37;
++
++ return count;
++}
++
++static ssize_t hci_h4p_show_bdaddr(struct device *dev, struct device_attribute *attr,
++ char *buf)
++{
++ struct hci_h4p_info *info = (struct hci_h4p_info*)dev_get_drvdata(dev);
++
++ return sprintf(buf, "%.2x:%.2x:%.2x:%.2x:%.2x:%.2x\n",
++ info->bdaddr[0],
++ info->bdaddr[1],
++ info->bdaddr[2],
++ info->bdaddr[3],
++ info->bdaddr[4],
++ info->bdaddr[5]);
++}
++
++static DEVICE_ATTR(bdaddr, S_IRUGO | S_IWUSR, hci_h4p_show_bdaddr, hci_h4p_store_bdaddr);
++int hci_h4p_sysfs_create_files(struct device *dev)
++{
++ return device_create_file(dev, &dev_attr_bdaddr);
++}
++
++#endif
+--- /dev/null
++++ b/drivers/bluetooth/hci_h4p/uart.c
+@@ -0,0 +1,169 @@
++/*
++ * This file is part of hci_h4p bluetooth driver
++ *
++ * Copyright (C) 2005, 2006 Nokia Corporation.
++ *
++ * Contact: Ville Tervo <ville.tervo@nokia.com>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * version 2 as published by the Free Software Foundation.
++ *
++ * This program is distributed in the hope that it will be useful, but
++ * WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
++ * General Public License for more details.
++ *
++ * You should have received a copy of the GNU General Public License
++ * along with this program; if not, write to the Free Software
++ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
++ * 02110-1301 USA
++ *
++ */
++
++#include <linux/serial_reg.h>
++#include <linux/delay.h>
++#include <linux/clk.h>
++
++#include <asm/io.h>
++
++#include "hci_h4p.h"
++
++inline void hci_h4p_outb(struct hci_h4p_info *info, unsigned int offset, u8 val)
++{
++ offset <<= 2;
++ __raw_writeb(val, info->uart_base + offset);
++ //outb(val, info->uart_base + (offset << 2));
++}
++
++inline u8 hci_h4p_inb(struct hci_h4p_info *info, unsigned int offset)
++{
++ offset <<= 2;
++ return (u8)__raw_readb(info->uart_base + offset);
++ //return (unsigned int)__raw_readb(up->membase + offset);
++ //return inb(info->uart_base + (offset << 2));
++}
++
++void hci_h4p_set_rts(struct hci_h4p_info *info, int active)
++{
++ u8 b;
++
++ b = hci_h4p_inb(info, UART_MCR);
++ if (active)
++ b |= UART_MCR_RTS;
++ else
++ b &= ~UART_MCR_RTS;
++ hci_h4p_outb(info, UART_MCR, b);
++}
++
++int hci_h4p_wait_for_cts(struct hci_h4p_info *info, int active,
++ int timeout_ms)
++{
++ int okay;
++ unsigned long timeout;
++
++ okay = 0;
++ timeout = jiffies + msecs_to_jiffies(timeout_ms);
++ for (;;) {
++ int state;
++
++ state = hci_h4p_inb(info, UART_MSR) & UART_MSR_CTS;
++ if (active) {
++ if (state)
++ return 0;
++ } else {
++ if (!state)
++ return 0;
++ }
++ if (time_after(jiffies, timeout))
++ return -ETIMEDOUT;
++ }
++}
++
++void __hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which)
++{
++ u8 lcr, b;
++
++ lcr = hci_h4p_inb(info, UART_LCR);
++ hci_h4p_outb(info, UART_LCR, 0xbf);
++ b = hci_h4p_inb(info, UART_EFR);
++ if (on)
++ b |= which;
++ else
++ b &= ~which;
++ hci_h4p_outb(info, UART_EFR, b);
++ hci_h4p_outb(info, UART_LCR, lcr);
++}
++
++void hci_h4p_set_auto_ctsrts(struct hci_h4p_info *info, int on, u8 which)
++{
++ unsigned long flags;
++
++ spin_lock_irqsave(&info->lock, flags);
++ __hci_h4p_set_auto_ctsrts(info, on, which);
++ spin_unlock_irqrestore(&info->lock, flags);
++}
++
++void hci_h4p_change_speed(struct hci_h4p_info *info, unsigned long speed)
++{
++ unsigned int divisor;
++ u8 lcr, mdr1;
++
++ NBT_DBG("Setting speed %lu\n", speed);
++
++ if (speed >= 460800) {
++ divisor = UART_CLOCK / 13 / speed;
++ mdr1 = 3;
++ } else {
++ divisor = UART_CLOCK / 16 / speed;
++ mdr1 = 0;
++ }
++
++ hci_h4p_outb(info, UART_OMAP_MDR1, 7); /* Make sure UART mode is disabled */
++ lcr = hci_h4p_inb(info, UART_LCR);
++ hci_h4p_outb(info, UART_LCR, UART_LCR_DLAB); /* Set DLAB */
++ hci_h4p_outb(info, UART_DLL, divisor & 0xff); /* Set speed */
++ hci_h4p_outb(info, UART_DLM, divisor >> 8);
++ hci_h4p_outb(info, UART_LCR, lcr);
++ hci_h4p_outb(info, UART_OMAP_MDR1, mdr1); /* Make sure UART mode is enabled */
++}
++
++int hci_h4p_reset_uart(struct hci_h4p_info *info)
++{
++ int count = 0;
++
++ /* Reset the UART */
++ hci_h4p_outb(info, UART_OMAP_SYSC, UART_SYSC_OMAP_RESET);
++ while (!(hci_h4p_inb(info, UART_OMAP_SYSS) & UART_SYSS_RESETDONE)) {
++ if (count++ > 20000) {
++ dev_err(info->dev, "hci_h4p: UART reset timeout\n");
++ return -ENODEV;
++ }
++ udelay(1);
++ }
++
++ return 0;
++}
++
++int hci_h4p_init_uart(struct hci_h4p_info *info)
++{
++ int err;
++
++ err = hci_h4p_reset_uart(info);
++ if (err < 0)
++ return err;
++
++ /* Enable and setup FIFO */
++ hci_h4p_outb(info, UART_LCR, UART_LCR_WLEN8);
++ hci_h4p_outb(info, UART_OMAP_MDR1, 0x00); /* Make sure UART mode is enabled */
++ hci_h4p_outb(info, UART_OMAP_SCR, 0x80);
++ hci_h4p_outb(info, UART_EFR, UART_EFR_ECB);
++ hci_h4p_outb(info, UART_MCR, UART_MCR_TCRTLR);
++ hci_h4p_outb(info, UART_TI752_TLR, 0x1f);
++ hci_h4p_outb(info, UART_TI752_TCR, 0xef);
++ hci_h4p_outb(info, UART_FCR, UART_FCR_ENABLE_FIFO | UART_FCR_CLEAR_RCVR |
++ UART_FCR_CLEAR_XMIT | UART_FCR_R_TRIG_00);
++ hci_h4p_outb(info, UART_IER, UART_IER_RDI);
++
++ return 0;
++}
+--- a/drivers/bluetooth/Kconfig
++++ b/drivers/bluetooth/Kconfig
+@@ -173,6 +173,16 @@ config BT_HCIBTUART
+ Say Y here to compile support for HCI UART devices into the
+ kernel or say M to compile it as module (btuart_cs).
+
++config BT_HCIH4P
++ tristate "HCI driver with H4 Nokia extensions"
++ depends on BT && ARCH_OMAP
++ help
++ Bluetooth HCI driver with H4 extensions. This driver provides
++ support for H4+ Bluetooth chip with vendor-specific H4 extensions.
++
++ Say Y here to compile support for h4 extended devices into the kernel
++ or say M to compile it as module (hci_h4p).
++
+ config BT_HCIVHCI
+ tristate "HCI VHCI (Virtual HCI device) driver"
+ help
+--- a/drivers/bluetooth/Makefile
++++ b/drivers/bluetooth/Makefile
+@@ -11,6 +11,7 @@ obj-$(CONFIG_BT_HCIDTL1) += dtl1_cs.o
+ obj-$(CONFIG_BT_HCIBT3C) += bt3c_cs.o
+ obj-$(CONFIG_BT_HCIBLUECARD) += bluecard_cs.o
+ obj-$(CONFIG_BT_HCIBTUART) += btuart_cs.o
++obj-$(CONFIG_BT_HCIH4P) += hci_h4p/
+
+ obj-$(CONFIG_BT_HCIBTUSB) += btusb.o
+ obj-$(CONFIG_BT_HCIBTSDIO) += btsdio.o
--- /dev/null
+--- a/drivers/bluetooth/hci_h4p/core.c
++++ b/drivers/bluetooth/hci_h4p/core.c
+@@ -36,9 +36,9 @@
+ #include <linux/clk.h>
+ #include <linux/gpio.h>
+
+-#include <mach/hardware.h>
+-#include <mach/board.h>
+-#include <mach/irqs.h>
++#include <plat/hardware.h>
++#include <plat/board.h>
++#include <plat/irqs.h>
+ #include <plat/serial.h>
+
+ #include <net/bluetooth/bluetooth.h>
+--- a/drivers/bluetooth/hci_h4p/hci_h4p.h
++++ b/drivers/bluetooth/hci_h4p/hci_h4p.h
+@@ -21,7 +21,7 @@
+ *
+ */
+
+-#include <mach/board.h>
++#include <plat/board.h>
+
+ #include <net/bluetooth/bluetooth.h>
+ #include <net/bluetooth/hci_core.h>
+--- a/drivers/bluetooth/hci_h4p/sysfs.c
++++ b/drivers/bluetooth/hci_h4p/sysfs.c
+@@ -48,15 +48,8 @@ static ssize_t hci_h4p_store_bdaddr(stru
+ return -EINVAL;
+ }
+
+- //for (i = 0; i < 6; i++)
+- //info->bdaddr[i] = bdaddr[i] & 0xff;
+-
+- info->bdaddr[0] = 0x00;
+- info->bdaddr[1] = 0x1D;
+- info->bdaddr[2] = 0x6E;
+- info->bdaddr[3] = 0xD4;
+- info->bdaddr[4] = 0xF0;
+- info->bdaddr[5] = 0x37;
++ for (i = 0; i < 6; i++)
++ info->bdaddr[i] = bdaddr[i] & 0xff;
+
+ return count;
+ }
--- /dev/null
+--- a/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c
++++ b/arch/arm/mach-omap2/omap_hwmod_2xxx_3xxx_ipblock_data.c
+@@ -235,7 +235,7 @@ struct omap_hwmod_irq_info omap2_timer11
+ };
+
+ struct omap_hwmod_irq_info omap2_uart1_mpu_irqs[] = {
+- { .irq = INT_24XX_UART1_IRQ, },
++ { .irq = 0, },
+ { .irq = -1 }
+ };
+
+--- a/drivers/tty/serial/omap-serial.c
++++ b/drivers/tty/serial/omap-serial.c
+@@ -517,8 +517,10 @@ static int serial_omap_startup(struct ua
+ /*
+ * Allocate the IRQ
+ */
+- retval = request_irq(up->port.irq, serial_omap_irq, up->port.irqflags,
+- up->name, up);
++ retval = 0;
++ if (up->port.irq)
++ retval = request_irq(up->port.irq, serial_omap_irq,
++ up->port.irqflags, up->name, up);
+ if (retval)
+ return retval;
+
+@@ -629,7 +631,8 @@ static void serial_omap_shutdown(struct
+ }
+
+ pm_runtime_put(&up->pdev->dev);
+- free_irq(up->port.irq, up);
++ if (up->port.irq)
++ free_irq(up->port.irq, up);
+ }
+
+ static inline void
--- /dev/null
+--- a/arch/arm/mach-omap2/board-n8x0.c
++++ b/arch/arm/mach-omap2/board-n8x0.c
+@@ -41,6 +41,7 @@
+ #include <plat/mmc.h>
+ #include <plat/serial.h>
+ #include <plat/gpio-switch.h>
++#include <plat/usb.h>
+
+ #include "mux.h"
+
+@@ -486,6 +487,14 @@ static struct musb_hdrc_platform_data tu
+ .config = &musb_config,
+ };
+
++static struct omap_usb_config n8x0_omap_usb_config __initdata = {
++ .otg = 1,
++ .register_host = 1,
++ .register_dev = 1,
++ .hmc_mode = 16,
++ .pins[0] = 6,
++};
++
+ static void __init n8x0_usb_init(void)
+ {
+ int ret = 0;
+@@ -507,6 +516,8 @@ static void __init n8x0_usb_init(void)
+ if (ret != 0)
+ goto err;
+
++ omap2_usbfs_init(&n8x0_omap_usb_config);
++
+ printk(announce);
+
+ return;
--- /dev/null
+---
+ drivers/input/evdev.c | 10 +++++++---
+ 1 file changed, 7 insertions(+), 3 deletions(-)
+
+--- a/drivers/input/evdev.c
++++ b/drivers/input/evdev.c
+@@ -92,7 +92,7 @@ static void evdev_event(struct input_han
+ unsigned int type, unsigned int code, int value)
+ {
+ struct evdev *evdev = handle->private;
+- struct evdev_client *client;
++ struct evdev_client *client, *c;
+ struct input_event event;
+
+ do_gettimeofday(&event.time);
+@@ -103,9 +103,13 @@ static void evdev_event(struct input_han
+ rcu_read_lock();
+
+ client = rcu_dereference(evdev->grab);
+- if (client)
++ if (client) {
+ evdev_pass_event(client, &event);
+- else
++ /* Also pass events to clients that did not grab the device. */
++ list_for_each_entry_rcu(c, &evdev->client_list, node)
++ if (c != client)
++ evdev_pass_event(c, &event);
++ } else
+ list_for_each_entry_rcu(client, &evdev->client_list, node)
+ evdev_pass_event(client, &event);
+
--- /dev/null
+--- a/drivers/mmc/host/omap.c
++++ b/drivers/mmc/host/omap.c
+@@ -1456,6 +1456,7 @@ static int __init mmc_omap_probe(struct
+ host->dma_ch = -1;
+
+ host->irq = irq;
++ host->reg_shift = (cpu_is_omap7xx() ? 1 : 2);
+ host->phys_base = host->mem_res->start;
+ host->virt_base = ioremap(res->start, resource_size(res));
+ if (!host->virt_base)
+@@ -1495,7 +1496,9 @@ static int __init mmc_omap_probe(struct
+ }
+ }
+
+- host->reg_shift = (cpu_is_omap7xx() ? 1 : 2);
++ /* Make sure the detect workqueue was run at least once. */
++ printk(KERN_INFO "OMAP-mmc: waiting for cards...\n");
++ mmc_flush_scheduled_work();
+
+ return 0;
+
+--- a/drivers/mmc/core/core.c
++++ b/drivers/mmc/core/core.c
+@@ -78,12 +78,13 @@ static int mmc_schedule_delayed_work(str
+ }
+
+ /*
+- * Internal function. Flush all scheduled work from the MMC work queue.
++ * Flush all scheduled work from the MMC work queue.
+ */
+-static void mmc_flush_scheduled_work(void)
++void mmc_flush_scheduled_work(void)
+ {
+ flush_workqueue(workqueue);
+ }
++EXPORT_SYMBOL(mmc_flush_scheduled_work);
+
+ #ifdef CONFIG_FAIL_MMC_REQUEST
+
+--- a/include/linux/mmc/host.h
++++ b/include/linux/mmc/host.h
+@@ -445,6 +445,8 @@ static inline int mmc_boot_partition_acc
+ return !(host->caps2 & MMC_CAP2_BOOTPART_NOACC);
+ }
+
++void mmc_flush_scheduled_work(void);
++
+ #ifdef CONFIG_MMC_CLKGATE
+ void mmc_host_clk_hold(struct mmc_host *host);
+ void mmc_host_clk_release(struct mmc_host *host);
--- /dev/null
+--- a/arch/arm/mach-omap2/serial.c
++++ b/arch/arm/mach-omap2/serial.c
+@@ -258,6 +258,8 @@ char *cmdline_find_option(char *str)
+ return strstr(saved_command_line, str);
+ }
+
++static struct omap_uart_state statebuf[4];
++
+ static int __init omap_serial_early_init(void)
+ {
+ do {
+@@ -272,9 +274,9 @@ static int __init omap_serial_early_init
+ if (!oh)
+ break;
+
+- uart = kzalloc(sizeof(struct omap_uart_state), GFP_KERNEL);
+- if (WARN_ON(!uart))
++ if (WARN_ON(num_uarts >= ARRAY_SIZE(statebuf)))
+ return -ENODEV;
++ uart = &statebuf[num_uarts];
+
+ uart->oh = oh;
+ uart->num = num_uarts++;
--- /dev/null
+--- a/drivers/usb/musb/tusb6010.c
++++ b/drivers/usb/musb/tusb6010.c
+@@ -221,6 +221,7 @@ void musb_write_fifo(struct musb_hw_ep *
+ if (len > 0)
+ tusb_fifo_write_unaligned(fifo, buf, len);
+ }
++EXPORT_SYMBOL(musb_write_fifo);
+
+ void musb_read_fifo(struct musb_hw_ep *hw_ep, u16 len, u8 *buf)
+ {
+@@ -268,6 +269,7 @@ void musb_read_fifo(struct musb_hw_ep *h
+ if (len > 0)
+ tusb_fifo_read_unaligned(fifo, buf, len);
+ }
++EXPORT_SYMBOL(musb_read_fifo);
+
+ static struct musb *the_musb;
+
+@@ -1165,7 +1167,7 @@ static const struct musb_platform_ops tu
+
+ static u64 tusb_dmamask = DMA_BIT_MASK(32);
+
+-static int __init tusb_probe(struct platform_device *pdev)
++static int tusb_probe(struct platform_device *pdev)
+ {
+ struct musb_hdrc_platform_data *pdata = pdev->dev.platform_data;
+ struct platform_device *musb;
+@@ -1245,18 +1247,18 @@ static struct platform_driver tusb_drive
+ },
+ };
+
+-MODULE_DESCRIPTION("TUSB6010 MUSB Glue Layer");
+-MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
+-MODULE_LICENSE("GPL v2");
++//MODULE_DESCRIPTION("TUSB6010 MUSB Glue Layer");
++//MODULE_AUTHOR("Felipe Balbi <balbi@ti.com>");
++//MODULE_LICENSE("GPL v2");
+
+-static int __init tusb_init(void)
++int musb_hdrc_glue_init(void)
+ {
+ return platform_driver_probe(&tusb_driver, tusb_probe);
+ }
+-subsys_initcall(tusb_init);
++EXPORT_SYMBOL(musb_hdrc_glue_init);
+
+-static void __exit tusb_exit(void)
++void musb_hdrc_glue_exit(void)
+ {
+ platform_driver_unregister(&tusb_driver);
+ }
+-module_exit(tusb_exit);
++EXPORT_SYMBOL(musb_hdrc_glue_exit);
+--- a/drivers/usb/musb/musb_core.c
++++ b/drivers/usb/musb/musb_core.c
+@@ -207,7 +207,7 @@ static struct otg_io_access_ops musb_ulp
+
+ /*-------------------------------------------------------------------------*/
+
+-#if !defined(CONFIG_USB_MUSB_TUSB6010) && !defined(CONFIG_USB_MUSB_BLACKFIN)
++#if !defined(CONFIG_USB_MUSB_TUSB6010) && !defined(CONFIG_USB_MUSB_TUSB6010_MODULE) && !defined(CONFIG_USB_MUSB_BLACKFIN)
+
+ /*
+ * Load an endpoint's FIFO
+@@ -250,7 +250,7 @@ void musb_write_fifo(struct musb_hw_ep *
+ }
+ }
+
+-#if !defined(CONFIG_USB_MUSB_AM35X)
++#if !defined(CONFIG_USB_MUSB_AM35X) && !defined(CONFIG_USB_MUSB_TUSB6010) && !defined(CONFIG_USB_MUSB_TUSB6010_MODULE)
+ /*
+ * Unload an endpoint's FIFO
+ */
+@@ -2370,8 +2370,13 @@ static struct platform_driver musb_drive
+
+ /*-------------------------------------------------------------------------*/
+
++extern int musb_hdrc_glue_init(void);
++extern void musb_hdrc_glue_exit(void);
++
+ static int __init musb_init(void)
+ {
++ int err;
++
+ if (usb_disabled())
+ return 0;
+
+@@ -2380,7 +2385,17 @@ static int __init musb_init(void)
+ ", "
+ "otg (peripheral+host)",
+ musb_driver_name);
+- return platform_driver_probe(&musb_driver, musb_probe);
++
++ err = musb_hdrc_glue_init();
++ if (err)
++ return err;
++ err = platform_driver_probe(&musb_driver, musb_probe);
++ if (err) {
++ musb_hdrc_glue_exit();
++ return err;
++ }
++
++ return 0;
+ }
+
+ /* make us init after usbcore and i2c (transceivers, regulators, etc)
+@@ -2391,5 +2406,6 @@ fs_initcall(musb_init);
+ static void __exit musb_cleanup(void)
+ {
+ platform_driver_unregister(&musb_driver);
++ musb_hdrc_glue_exit();
+ }
+ module_exit(musb_cleanup);
+--- a/drivers/usb/Makefile
++++ b/drivers/usb/Makefile
+@@ -51,7 +51,7 @@ obj-$(CONFIG_EARLY_PRINTK_DBGP) += early
+ obj-$(CONFIG_USB_ATM) += atm/
+ obj-$(CONFIG_USB_SPEEDTOUCH) += atm/
+
+-obj-$(CONFIG_USB_MUSB_HDRC) += musb/
++obj-y += musb/
+ obj-$(CONFIG_USB_RENESAS_USBHS) += renesas_usbhs/
+ obj-$(CONFIG_USB_GADGET) += gadget/
+
+--- a/drivers/usb/musb/Makefile
++++ b/drivers/usb/musb/Makefile
+@@ -13,7 +13,7 @@ musb_hdrc-$(CONFIG_DEBUG_FS) += musb_d
+ # Hardware Glue Layer
+ obj-$(CONFIG_USB_MUSB_OMAP2PLUS) += omap2430.o
+ obj-$(CONFIG_USB_MUSB_AM35X) += am35x.o
+-obj-$(CONFIG_USB_MUSB_TUSB6010) += tusb6010.o
++musb_hdrc-$(subst m,y,$(CONFIG_USB_MUSB_TUSB6010)) += tusb6010.o
+ obj-$(CONFIG_USB_MUSB_DAVINCI) += davinci.o
+ obj-$(CONFIG_USB_MUSB_DA8XX) += da8xx.o
+ obj-$(CONFIG_USB_MUSB_BLACKFIN) += blackfin.o
--- /dev/null
+--- a/drivers/cbus/Kconfig
++++ b/drivers/cbus/Kconfig
+@@ -83,4 +83,12 @@ config CBUS_RETU_HEADSET
+
+ endif # CBUS_RETU
+
++config N810BM
++ depends on CBUS_RETU && CBUS_TAHVO
++ tristate "Nokia n810 battery management"
++ ---help---
++ Nokia n810 device battery management.
++
++ If unsure, say N.
++
+ endmenu
+--- a/drivers/cbus/Makefile
++++ b/drivers/cbus/Makefile
+@@ -11,3 +11,6 @@ obj-$(CONFIG_CBUS_RETU_POWERBUTTON) += r
+ obj-$(CONFIG_CBUS_RETU_RTC) += retu-rtc.o
+ obj-$(CONFIG_CBUS_RETU_WDT) += retu-wdt.o
+ obj-$(CONFIG_CBUS_RETU_HEADSET) += retu-headset.o
++n810bm-y += n810bm_main.o
++n810bm-y += lipocharge.o
++obj-$(CONFIG_N810BM) += n810bm.o
+--- /dev/null
++++ b/drivers/cbus/n810bm_main.c
+@@ -0,0 +1,1572 @@
++/*
++ * Nokia n810 battery management
++ *
++ * WARNING: This driver is based on unconfirmed documentation.
++ * It is possibly dangerous to use this software.
++ * Use this software at your own risk!
++ *
++ * Copyright (c) 2010-2011 Michael Buesch <mb@bu3sch.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ */
++
++#define DEBUG
++
++#include <linux/module.h>
++#include <linux/device.h>
++#include <linux/platform_device.h>
++#include <linux/slab.h>
++#include <linux/mutex.h>
++#include <linux/timer.h>
++#include <linux/firmware.h>
++#include <linux/bitops.h>
++#include <linux/workqueue.h>
++#include <linux/delay.h>
++#include <linux/interrupt.h>
++
++#include "cbus.h"
++#include "retu.h"
++#include "tahvo.h"
++#include "lipocharge.h"
++
++
++#define N810BM_PMM_BLOCK_FILENAME "n810-cal-bme-pmm.fw"
++#define N810BM_PMM_BLOCK_SIZE 0x600
++#define N810BM_PMM_GROUP_SIZE 0x200
++#define N810BM_PMM_ELEM_SIZE 0x10
++
++#define N810BM_CHECK_INTERVAL (HZ * 2)
++#define N810BM_MIN_VOLTAGE_THRES 3200 /* Absolute minimum voltage threshold */
++
++
++/* RETU_ADC_BSI
++ * The battery size indicator ADC measures the resistance between
++ * the battery BSI pin and ground. This is used to detect the battery
++ * capacity, as the BSI resistor is related to capacity.
++ *
++ * Manually measured lookup table.
++ * Hard to measure, thus not very accurate.
++ *
++ * Resistance | ADC value
++ * ========================
++ * 120k | 0x3AC
++ * 110k | 0x37C
++ * 100k | 0x351
++ * 90k | 0x329
++ */
++
++/* RETU_ADC_BATTVOLT
++ * Manually measured lookup table.
++ * Hard to measure, thus not very accurate.
++ *
++ * Voltage | ADC value
++ * =====================
++ * 2.80V | 0x037
++ * 2.90V | 0x05E
++ * 3.00V | 0x090
++ * 3.10V | 0x0A4
++ * 3.20V | 0x0CC
++ * 3.30V | 0x0EF
++ * 3.40V | 0x115
++ * 3.50V | 0x136
++ * 3.60V | 0x15C
++ * 3.70V | 0x187
++ * 3.80V | 0x1A5
++ * 3.90V | 0x1C9
++ * 4.00V | 0x1ED
++ * 4.10V | 0x212
++ * 4.20V | 0x236
++ */
++
++
++/* PMM block ADC IDs */
++enum n810bm_pmm_adc_id {
++ N810BM_PMM_ADC_BATVOLT = 0x01, /* Battery voltage */
++ N810BM_PMM_ADC_CHGVOLT = 0x02, /* Charger voltage */
++ N810BM_PMM_ADC_GND2 = 0x03, /* Ground 0V */
++ N810BM_PMM_ADC_BSI = 0x04, /* Battery size indicator */
++ N810BM_PMM_ADC_BATTEMP = 0x05, /* Battery temperature */
++ N810BM_PMM_ADC_HEADSET = 0x06, /* Headset detection */
++ N810BM_PMM_ADC_HOOKDET = 0x07, /* Hook detection */
++ N810BM_PMM_ADC_LIGHTSENS = 0x08, /* Light sensor */
++ N810BM_PMM_ADC_BATCURR = 0x0E, /* Battery current */
++ N810BM_PMM_ADC_BKUPVOLT = 0x13, /* Backup battery voltage */
++ N810BM_PMM_ADC_LIGHTTEMP = 0x14, /* Light sensor temperature */
++ N810BM_PMM_ADC_RFGP = 0x15, /* RF GP */
++ N810BM_PMM_ADC_WBTX = 0x16, /* Wideband TX detection */
++ N810BM_PMM_ADC_RETUTEMP = 0x17, /* RETU chip temperature */
++ N810BM_PMM_ADC_0xFE = 0xFE,
++};
++
++struct n810bm_adc_calib {
++ enum n810bm_pmm_adc_id id;
++ u8 flags;
++ u8 adc_groupnr;
++ u32 field1;
++ u32 field2;
++ u16 field3;
++ u16 field4;
++};
++
++struct n810bm_calib {
++ struct n810bm_adc_calib adc[25];
++};
++
++enum n810bm_capacity {
++ N810BM_CAP_UNKNOWN = -1,
++ N810BM_CAP_NONE = 0,
++ N810BM_CAP_1500MAH = 1500, /* 1500 mAh battery */
++};
++
++enum n810bm_notify_flags {
++ N810BM_NOTIFY_charger_present,
++ N810BM_NOTIFY_charger_state,
++ N810BM_NOTIFY_charger_pwm,
++};
++
++struct n810bm {
++ int tahvo_irq;
++ bool tahvo_irq_enabled;
++
++ bool battery_present; /* A battery is inserted */
++ bool charger_present; /* The charger is connected */
++ enum n810bm_capacity capacity; /* The capacity of the inserted battery (if any) */
++
++ bool charger_enabled; /* Want to charge? */
++ struct lipocharge charger; /* Charger subsystem */
++ unsigned int active_current_pwm; /* Active value of TAHVO_REG_CHGCURR */
++ int current_measure_enabled; /* Current measure enable refcount */
++
++ struct platform_device *pdev;
++ struct n810bm_calib calib; /* Calibration data */
++
++ bool verbose_charge_log; /* Verbose charge logging */
++
++ unsigned long notify_flags;
++ struct work_struct notify_work;
++ struct delayed_work periodic_check_work;
++
++ bool initialized; /* The hardware was initialized */
++ struct mutex mutex;
++};
++
++static void n810bm_notify_charger_present(struct n810bm *bm);
++static void n810bm_notify_charger_state(struct n810bm *bm);
++static void n810bm_notify_charger_pwm(struct n810bm *bm);
++
++
++static struct platform_device *n810bm_retu_device;
++static struct platform_device *n810bm_tahvo_device;
++
++
++static inline struct n810bm * device_to_n810bm(struct device *dev)
++{
++ struct platform_device *pdev = to_platform_device(dev);
++ struct n810bm *bm = platform_get_drvdata(pdev);
++
++ return bm;
++}
++
++static inline bool n810bm_known_battery_present(struct n810bm *bm)
++{
++ return bm->battery_present &&
++ bm->capacity != N810BM_CAP_UNKNOWN &&
++ bm->capacity != N810BM_CAP_NONE;
++}
++
++static void n810bm_emergency(struct n810bm *bm, const char *message) __noreturn;
++static void n810bm_emergency(struct n810bm *bm, const char *message)
++{
++ printk(KERN_EMERG "n810 battery management fatal fault: %s\n", message);
++ cbus_emergency();
++}
++
++static u16 tahvo_read(struct n810bm *bm, unsigned int reg)
++{
++ return tahvo_read_reg(&n810bm_tahvo_device->dev, reg);
++}
++
++static void tahvo_maskset(struct n810bm *bm, unsigned int reg, u16 mask, u16 set)
++{
++ tahvo_set_clear_reg_bits(&n810bm_tahvo_device->dev, reg, set, mask);
++}
++
++static inline void tahvo_write(struct n810bm *bm, unsigned int reg, u16 value)
++{
++ tahvo_write_reg(&n810bm_tahvo_device->dev, reg, value);
++}
++
++static inline void tahvo_set(struct n810bm *bm, unsigned int reg, u16 mask)
++{
++ tahvo_set_clear_reg_bits(&n810bm_tahvo_device->dev, reg, mask, mask);
++}
++
++static inline void tahvo_clear(struct n810bm *bm, unsigned int reg, u16 mask)
++{
++ tahvo_set_clear_reg_bits(&n810bm_tahvo_device->dev, reg, 0, mask);
++}
++
++static u16 retu_read(struct n810bm *bm, unsigned int reg)
++{
++ return retu_read_reg(&n810bm_retu_device->dev, reg);
++}
++
++static void retu_maskset(struct n810bm *bm, unsigned int reg, u16 mask, u16 set)
++{
++ retu_set_clear_reg_bits(&n810bm_retu_device->dev, reg, set, mask);
++}
++
++static inline void retu_write(struct n810bm *bm, unsigned int reg, u16 value)
++{
++ retu_write_reg(&n810bm_retu_device->dev, reg, value);
++}
++
++static int retu_adc_average(struct n810bm *bm, unsigned int chan,
++ unsigned int nr_passes)
++{
++ unsigned int i, value = 0;
++ int ret;
++
++ if (WARN_ON(!nr_passes))
++ return 0;
++ for (i = 0; i < nr_passes; i++) {
++ ret = retu_read_adc(&n810bm_retu_device->dev, chan);
++ if (ret < 0)
++ return ret;
++ value += ret;
++ }
++ value /= nr_passes;
++
++ return value;
++}
++
++static struct n810bm_adc_calib * n810bm_get_adc_calib(struct n810bm *bm,
++ enum n810bm_pmm_adc_id id)
++{
++ unsigned int index = 0;
++ struct n810bm_adc_calib *cal;
++
++ if (id != N810BM_PMM_ADC_0xFE)
++ index = (unsigned int)id + 1;
++ if (index >= ARRAY_SIZE(bm->calib.adc))
++ return NULL;
++
++ cal = &bm->calib.adc[index];
++ WARN_ON(cal->id && cal->id != id);
++
++ return cal;
++}
++
++static int pmm_record_get(struct n810bm *bm,
++ const struct firmware *pmm_block,
++ void *buffer, size_t length,
++ unsigned int group, unsigned int element, unsigned int offset)
++{
++ const u8 *pmm_area = pmm_block->data;
++ u8 active_group_mask;
++
++ if (pmm_block->size != N810BM_PMM_BLOCK_SIZE)
++ return -EINVAL;
++ if (group >= N810BM_PMM_BLOCK_SIZE / N810BM_PMM_GROUP_SIZE)
++ return -EINVAL;
++ if (element >= N810BM_PMM_GROUP_SIZE / N810BM_PMM_ELEM_SIZE)
++ return -EINVAL;
++ if (offset >= N810BM_PMM_ELEM_SIZE || length > N810BM_PMM_ELEM_SIZE ||
++ length + offset > N810BM_PMM_ELEM_SIZE)
++ return -EINVAL;
++
++ active_group_mask = pmm_area[16];
++ if (!(active_group_mask & (1 << group))) {
++ dev_dbg(&bm->pdev->dev, "pwm_record_get: Requested group %u, "
++ "but group is not active", group);
++ return -ENOENT;
++ }
++
++ memcpy(buffer,
++ pmm_area + group * N810BM_PMM_GROUP_SIZE
++ + element * N810BM_PMM_ELEM_SIZE
++ + offset,
++ length);
++
++ return 0;
++}
++
++/* PMM block group 1 element */
++struct group1_element {
++ u8 id;
++ u8 flags;
++ u8 adc_groupnr;
++ u8 _padding;
++ __le32 field1;
++ __le32 field2;
++} __packed;
++
++static int extract_group1_elem(struct n810bm *bm,
++ const struct firmware *pmm_block,
++ const enum n810bm_pmm_adc_id *pmm_adc_ids, size_t nr_pmm_adc_ids,
++ u32 field1_mask, u32 field2_mask)
++{
++ struct group1_element elem;
++ int err;
++ unsigned int i, element_nr;
++ struct n810bm_adc_calib *adc_calib;
++
++ for (i = 0; i < nr_pmm_adc_ids; i++) {
++ element_nr = (unsigned int)(pmm_adc_ids[i]) + 3;
++
++ err = pmm_record_get(bm, pmm_block, &elem, sizeof(elem),
++ 1, element_nr, 0);
++ if (err)
++ continue;
++ adc_calib = n810bm_get_adc_calib(bm, elem.id);
++ if (!adc_calib) {
++ dev_err(&bm->pdev->dev, "extract_group1_elem: "
++ "Could not get calib element for 0x%02X",
++ elem.id);
++ return -EINVAL;
++ }
++
++ if (adc_calib->flags == elem.flags) {
++ adc_calib->field1 = le32_to_cpu(elem.field1) & field1_mask;
++ adc_calib->field2 = le32_to_cpu(elem.field2) & field2_mask;
++ } else {
++ dev_dbg(&bm->pdev->dev, "extract_group1_elem: "
++ "Not extracting fields due to flags mismatch: "
++ "0x%02X vs 0x%02X",
++ adc_calib->flags, elem.flags);
++ }
++ }
++
++ return 0;
++}
++
++static int n810bm_parse_pmm_group1(struct n810bm *bm,
++ const struct firmware *pmm_block)
++{
++ struct n810bm_adc_calib *adc_calib;
++ struct group1_element elem;
++ int err;
++
++ static const enum n810bm_pmm_adc_id pmm_adc_ids_1[] = {
++ N810BM_PMM_ADC_BATVOLT,
++ N810BM_PMM_ADC_CHGVOLT,
++ N810BM_PMM_ADC_BKUPVOLT,
++ N810BM_PMM_ADC_BATCURR,
++ };
++ static const enum n810bm_pmm_adc_id pmm_adc_ids_2[] = {
++ N810BM_PMM_ADC_BSI,
++ };
++ static const enum n810bm_pmm_adc_id pmm_adc_ids_3[] = {
++ N810BM_PMM_ADC_BATTEMP,
++ };
++
++ /* Parse element 2 */
++ err = pmm_record_get(bm, pmm_block, &elem, sizeof(elem),
++ 1, 2, 0);
++ if (err) {
++ dev_err(&bm->pdev->dev,
++ "PMM: Failed to get group 1 / element 2");
++ return err;
++ }
++ if (elem.id == N810BM_PMM_ADC_0xFE && elem.flags == 0x05) {
++ adc_calib = n810bm_get_adc_calib(bm, elem.id);
++ if (!adc_calib) {
++ dev_err(&bm->pdev->dev,
++ "calib extract: Failed to get 0xFE calib");
++ return -EINVAL;
++ }
++ adc_calib->id = elem.id;
++ adc_calib->flags = elem.flags;
++ adc_calib->field1 = le32_to_cpu(elem.field1);
++ adc_calib->field2 = le32_to_cpu(elem.field2);
++ }
++
++ err = extract_group1_elem(bm, pmm_block,
++ pmm_adc_ids_1, ARRAY_SIZE(pmm_adc_ids_1),
++ 0xFFFFFFFF, 0xFFFFFFFF);
++ if (err)
++ return err;
++ err = extract_group1_elem(bm, pmm_block,
++ pmm_adc_ids_2, ARRAY_SIZE(pmm_adc_ids_2),
++ 0xFFFFFFFF, 0);
++ if (err)
++ return err;
++ err = extract_group1_elem(bm, pmm_block,
++ pmm_adc_ids_3, ARRAY_SIZE(pmm_adc_ids_3),
++ 0xFFFFFFFF, 0x0000FFFF);
++ if (err)
++ return err;
++
++ return 0;
++}
++
++static int n810bm_parse_pmm_group2(struct n810bm *bm,
++ const struct firmware *pmm_block)
++{
++ dev_err(&bm->pdev->dev, "TODO: CAL BME PMM group 2 parser not implemented, yet");
++ return -EOPNOTSUPP;
++}
++
++static void n810bm_adc_calib_set_defaults(struct n810bm *bm)
++{
++ struct n810bm_adc_calib *adc_calib;
++ unsigned int i;
++
++ static const struct n810bm_adc_calib defaults[] = {
++ /* ADC group-nr 0 */
++ {
++ .id = N810BM_PMM_ADC_HEADSET,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_HOOKDET,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_RFGP,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_LIGHTSENS,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_WBTX,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_RETUTEMP,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ }, {
++ .id = N810BM_PMM_ADC_GND2,
++ .flags = 0x00,
++ .adc_groupnr = 0,
++ },
++ /* ADC group-nr 1 */
++ {
++ .id = N810BM_PMM_ADC_0xFE,
++ .flags = 0x05,
++ .adc_groupnr = 1,
++ .field1 = (u32)-2,
++ .field2 = 13189,
++ }, {
++ .id = N810BM_PMM_ADC_BATVOLT,
++ .flags = 0x01,
++ .adc_groupnr = 1,
++ .field1 = 2527,
++ .field2 = 21373,
++ }, {
++ .id = N810BM_PMM_ADC_CHGVOLT,
++ .flags = 0x01,
++ .adc_groupnr = 1,
++ .field1 = 0,
++ .field2 = 129848,
++ }, {
++ .id = N810BM_PMM_ADC_BKUPVOLT,
++ .flags = 0x01,
++ .adc_groupnr = 1,
++ .field1 = 0,
++ .field2 = 20000,
++ }, {
++ .id = N810BM_PMM_ADC_BATCURR,
++ .flags = 0x06,
++ .adc_groupnr = 1,
++ .field1 = 0,
++ .field2 = 9660,
++ },
++ /* ADC group-nr 2 */
++ {
++ .id = N810BM_PMM_ADC_BSI,
++ .flags = 0x02,
++ .adc_groupnr = 2,
++ .field1 = 1169,
++ .field2 = 0,
++ },
++ /* ADC group-nr 3 */
++ {
++ .id = N810BM_PMM_ADC_BATTEMP,
++ .flags = 0x03,
++ .adc_groupnr = 3,
++ .field1 = 265423000,
++ .field2 = 298,
++ },
++ /* ADC group-nr 4 */
++ {
++ .id = N810BM_PMM_ADC_LIGHTTEMP,
++ .flags = 0x04,
++ .adc_groupnr = 4,
++ .field1 = 19533778,
++ .field2 = 308019670,
++ .field3 = 4700,
++ .field4 = 2500,
++ },
++ };
++
++ /* Clear the array */
++ memset(&bm->calib.adc, 0, sizeof(bm->calib.adc));
++ for (i = 0; i < ARRAY_SIZE(bm->calib.adc); i++)
++ bm->calib.adc[i].flags = 0xFF;
++
++ /* Copy the defaults */
++ for (i = 0; i < ARRAY_SIZE(defaults); i++) {
++ adc_calib = n810bm_get_adc_calib(bm, defaults[i].id);
++ if (WARN_ON(!adc_calib))
++ continue;
++ *adc_calib = defaults[i];
++ }
++}
++
++static int n810bm_parse_pmm_block(struct n810bm *bm,
++ const struct firmware *pmm_block)
++{
++ u8 byte;
++ int err;
++ unsigned int i, count;
++ struct n810bm_adc_calib *adc_calib;
++
++ /* Initialize to defaults */
++ n810bm_adc_calib_set_defaults(bm);
++
++ /* Parse the PMM data */
++ err = pmm_record_get(bm, pmm_block, &byte, sizeof(byte),
++ 1, 0, 0); /* group 1 / element 0 */
++ err |= (byte != 0x01);
++ err |= pmm_record_get(bm, pmm_block, &byte, sizeof(byte),
++ 1, 1, 0); /* group 1 / element 1 */
++ err |= (byte != 0x01);
++ if (err)
++ err = n810bm_parse_pmm_group2(bm, pmm_block);
++ else
++ err = n810bm_parse_pmm_group1(bm, pmm_block);
++ if (err)
++ return err;
++
++ /* Sanity checks */
++ for (i = 0, count = 0; i < ARRAY_SIZE(bm->calib.adc); i++) {
++ adc_calib = &bm->calib.adc[i];
++ if (adc_calib->flags == 0xFF)
++ continue;
++ switch (adc_calib->id) {
++ case N810BM_PMM_ADC_BATVOLT:
++ if (adc_calib->field1 < 2400 ||
++ adc_calib->field1 > 2700)
++ goto value_check_fail;
++ if (adc_calib->field2 < 20000 ||
++ adc_calib->field2 > 23000)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_BSI:
++ if (adc_calib->field1 < 1100 ||
++ adc_calib->field1 > 1300)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_BATCURR:
++ if (adc_calib->field2 < 7000 ||
++ adc_calib->field2 > 12000)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_0xFE:
++ if ((s32)adc_calib->field1 > 14 ||
++ (s32)adc_calib->field1 < -14)
++ goto value_check_fail;
++ if (adc_calib->field2 < 13000 ||
++ adc_calib->field2 > 13350)
++ goto value_check_fail;
++ count++;
++ break;
++ case N810BM_PMM_ADC_CHGVOLT:
++ case N810BM_PMM_ADC_BATTEMP:
++ case N810BM_PMM_ADC_BKUPVOLT:
++ count++;
++ break;
++ case N810BM_PMM_ADC_GND2:
++ case N810BM_PMM_ADC_HOOKDET:
++ case N810BM_PMM_ADC_LIGHTSENS:
++ case N810BM_PMM_ADC_HEADSET:
++ case N810BM_PMM_ADC_LIGHTTEMP:
++ case N810BM_PMM_ADC_RFGP:
++ case N810BM_PMM_ADC_WBTX:
++ case N810BM_PMM_ADC_RETUTEMP:
++ break;
++ }
++ dev_dbg(&bm->pdev->dev,
++ "ADC 0x%02X calib: 0x%02X 0x%02X 0x%08X 0x%08X 0x%04X 0x%04X",
++ adc_calib->id, adc_calib->flags, adc_calib->adc_groupnr,
++ adc_calib->field1, adc_calib->field2,
++ adc_calib->field3, adc_calib->field4);
++ }
++ if (count != 7) {
++ dev_err(&bm->pdev->dev, "PMM sanity check: Did not find "
++ "all required values (count=%u)", count);
++ goto check_fail;
++ }
++
++ return 0;
++
++value_check_fail:
++ dev_err(&bm->pdev->dev, "PMM image sanity check failed "
++ "(id=%02X, field1=%08X, field2=%08X)",
++ adc_calib->id, adc_calib->field1, adc_calib->field2);
++check_fail:
++ return -EILSEQ;
++}
++
++/* Set the current measure timer that triggers on Tahvo IRQ 7
++ * An interval of zero disables the timer. */
++static void n810bm_set_current_measure_timer(struct n810bm *bm,
++ u16 millisec_interval)
++{
++ u16 value = millisec_interval;
++
++ if (value <= 0xF905) {
++ value = ((u64)0x10624DD3 * (u64)(value + 0xF9)) >> 32;
++ value /= 16;
++ } else
++ value = 0xFF;
++
++ tahvo_write(bm, TAHVO_REG_BATCURRTIMER, value & 0xFF);
++
++ tahvo_set(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURTIMRST);
++ tahvo_clear(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURTIMRST);
++
++ if (millisec_interval) {
++ if (!bm->tahvo_irq_enabled) {
++ bm->tahvo_irq_enabled = 1;
++ enable_irq(bm->tahvo_irq);
++ }
++ } else {
++ if (bm->tahvo_irq_enabled) {
++ bm->tahvo_irq_enabled = 0;
++ disable_irq_nosync(bm->tahvo_irq);
++ }
++ }
++
++ //TODO also do a software timer for safety.
++}
++
++static void n810bm_enable_current_measure(struct n810bm *bm)
++{
++ WARN_ON(bm->current_measure_enabled < 0);
++ if (!bm->current_measure_enabled) {
++ /* Enable the current measurement circuitry */
++ tahvo_set(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURMEAS);
++ dev_dbg(&bm->pdev->dev,
++ "Current measurement circuitry enabled");
++ }
++ bm->current_measure_enabled++;
++}
++
++static void n810bm_disable_current_measure(struct n810bm *bm)
++{
++ bm->current_measure_enabled--;
++ WARN_ON(bm->current_measure_enabled < 0);
++ if (!bm->current_measure_enabled) {
++ /* Disable the current measurement circuitry */
++ tahvo_clear(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_CURMEAS);
++ dev_dbg(&bm->pdev->dev,
++ "Current measurement circuitry disabled");
++ }
++}
++
++/* Measure the actual battery current. Returns a signed value in mA.
++ * Does only work, if current measurement was enabled. */
++static int n810bm_measure_batt_current(struct n810bm *bm)
++{
++ u16 retval;
++ int adc = 0, ma, i;
++
++ if (WARN_ON(bm->current_measure_enabled <= 0))
++ return 0;
++ for (i = 0; i < 3; i++) {
++ retval = tahvo_read(bm, TAHVO_REG_BATCURR);
++ adc += (s16)retval; /* Value is signed */
++ }
++ adc /= 3;
++
++ //TODO convert to mA
++ ma = adc;
++
++ return ma;
++}
++
++/* Requires bm->mutex locked */
++static int n810bm_measure_batt_current_async(struct n810bm *bm)
++{
++ int ma;
++ bool charging = lipocharge_is_charging(&bm->charger);
++
++ n810bm_enable_current_measure(bm);
++ if (!charging)
++ WARN_ON(bm->active_current_pwm != 0);
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_EN |
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ TAHVO_REG_CHGCTL_EN |
++ TAHVO_REG_CHGCTL_PWMOVR |
++ (charging ? 0 : TAHVO_REG_CHGCTL_PWMOVRZERO));
++ ma = n810bm_measure_batt_current(bm);
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_EN |
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ (charging ? TAHVO_REG_CHGCTL_EN : 0));
++ n810bm_disable_current_measure(bm);
++
++ return ma;
++}
++
++static int adc_sanity_check(struct n810bm *bm, unsigned int channel)
++{
++ int value;
++
++ value = retu_read_adc(&n810bm_retu_device->dev, channel);
++ if (value < 0) {
++ dev_err(&bm->pdev->dev, "Failed to read GND ADC channel %u",
++ channel);
++ return -EIO;
++ }
++ dev_dbg(&bm->pdev->dev,
++ "GND ADC channel %u sanity check got value: %d",
++ channel, value);
++ if (value > 5) {
++ n810bm_emergency(bm, "GND ADC sanity check failed");
++ return -EIO;
++ }
++
++ return 0;
++}
++
++static int n810bm_check_adc_sanity(struct n810bm *bm)
++{
++ int err;
++
++ /* Discard one conversion */
++ retu_write(bm, RETU_REG_ADCSCR, 0);
++ retu_read_adc(&n810bm_retu_device->dev, RETU_ADC_GND2);
++
++ err = adc_sanity_check(bm, RETU_ADC_GND2);
++ if (err)
++ return err;
++
++ return 0;
++}
++
++/* Measure the battery voltage. Returns the value in mV (or negative value on error). */
++static int n810bm_measure_batt_voltage(struct n810bm *bm)
++{
++ int adc;
++ unsigned int mv;
++ const unsigned int scale = 1000;
++
++ adc = retu_adc_average(bm, RETU_ADC_BATTVOLT, 5);
++ if (adc < 0)
++ return adc;
++ if (adc <= 0x37)
++ return 2800;
++ mv = 2800 + ((adc - 0x37) * (((4200 - 2800) * scale) / (0x236 - 0x37))) / scale;
++
++ //TODO compensate for power consumption
++ //TODO honor calibration values
++
++ return mv;
++}
++
++/* Measure the charger voltage. Returns the value in mV (or negative value on error). */
++static int n810bm_measure_charger_voltage(struct n810bm *bm)
++{
++ int adc;
++ unsigned int mv;
++
++ adc = retu_adc_average(bm, RETU_ADC_CHGVOLT, 5);
++ if (adc < 0)
++ return adc;
++ //TODO convert to mV
++ mv = adc;
++
++ return mv;
++}
++
++/* Measure backup battery voltage. Returns the value in mV (or negative value on error). */
++static int n810bm_measure_backup_batt_voltage(struct n810bm *bm)
++{
++ int adc;
++ unsigned int mv;
++
++ adc = retu_adc_average(bm, RETU_ADC_BKUPVOLT, 3);
++ if (adc < 0)
++ return adc;
++ //TODO convert to mV
++ mv = adc;
++
++ return mv;
++}
++
++/* Measure the battery temperature. Returns the value in K (or negative value on error). */
++static int n810bm_measure_batt_temp(struct n810bm *bm)
++{
++ int adc;
++ unsigned int k;
++
++ adc = retu_adc_average(bm, RETU_ADC_BATTEMP, 3);
++ if (adc < 0)
++ return adc;
++ //TODO convert to K
++ k = adc;
++
++ return k;
++}
++
++/* Read the battery capacity via BSI pin. */
++static enum n810bm_capacity n810bm_read_batt_capacity(struct n810bm *bm)
++{
++ int adc;
++ const unsigned int hyst = 20;
++
++ adc = retu_adc_average(bm, RETU_ADC_BSI, 5);
++ if (adc < 0) {
++ dev_err(&bm->pdev->dev, "Failed to read BSI ADC");
++ return N810BM_CAP_UNKNOWN;
++ }
++
++ if (adc >= 0x3B5 - hyst && adc <= 0x3B5 + hyst)
++ return N810BM_CAP_1500MAH;
++
++ dev_err(&bm->pdev->dev, "Capacity indicator 0x%X unknown", adc);
++
++ return N810BM_CAP_UNKNOWN;
++}
++
++/* Convert a battery voltage (in mV) to percentage. */
++static unsigned int n810bm_mvolt2percent(unsigned int mv)
++{
++ const unsigned int minv = 3700;
++ const unsigned int maxv = 4150;
++ unsigned int percent;
++
++ mv = clamp(mv, minv, maxv);
++ percent = (mv - minv) * 100 / (maxv - minv);
++
++ return percent;
++}
++
++static void n810bm_start_charge(struct n810bm *bm)
++{
++ int err;
++
++ WARN_ON(!bm->battery_present);
++ WARN_ON(!bm->charger_present);
++
++ /* Set PWM to zero */
++ bm->active_current_pwm = 0;
++ tahvo_write(bm, TAHVO_REG_CHGCURR, bm->active_current_pwm);
++
++ /* Charge global enable */
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_EN |
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ TAHVO_REG_CHGCTL_EN);
++
++ WARN_ON((int)bm->capacity <= 0);
++ bm->charger.capacity = bm->capacity;
++ err = lipocharge_start(&bm->charger);
++ WARN_ON(err);
++
++ /* Initialize current measurement circuitry */
++ n810bm_enable_current_measure(bm);
++ n810bm_set_current_measure_timer(bm, 250);
++
++ dev_info(&bm->pdev->dev, "Charging battery");
++ n810bm_notify_charger_state(bm);
++ n810bm_notify_charger_pwm(bm);
++}
++
++static void n810bm_stop_charge(struct n810bm *bm)
++{
++ if (lipocharge_is_charging(&bm->charger)) {
++ n810bm_set_current_measure_timer(bm, 0);
++ n810bm_disable_current_measure(bm);
++ }
++ lipocharge_stop(&bm->charger);
++
++ /* Set PWM to zero */
++ bm->active_current_pwm = 0;
++ tahvo_write(bm, TAHVO_REG_CHGCURR, bm->active_current_pwm);
++
++ /* Charge global disable */
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_EN |
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ 0);
++
++ dev_info(&bm->pdev->dev, "Not charging battery");
++ n810bm_notify_charger_state(bm);
++ n810bm_notify_charger_pwm(bm);
++}
++
++/* Periodic check */
++static void n810bm_periodic_check_work(struct work_struct *work)
++{
++ struct n810bm *bm = container_of(to_delayed_work(work),
++ struct n810bm, periodic_check_work);
++ u16 status;
++ bool battery_was_present, charger_was_present;
++ int mv;
++
++ mutex_lock(&bm->mutex);
++
++ status = retu_read(bm, RETU_REG_STATUS);
++ battery_was_present = bm->battery_present;
++ charger_was_present = bm->charger_present;
++ bm->battery_present = !!(status & RETU_REG_STATUS_BATAVAIL);
++ bm->charger_present = !!(status & RETU_REG_STATUS_CHGPLUG);
++
++ if (bm->battery_present != battery_was_present) {
++ /* Battery state changed */
++ if (bm->battery_present) {
++ bm->capacity = n810bm_read_batt_capacity(bm);
++ if (bm->capacity == N810BM_CAP_UNKNOWN) {
++ dev_err(&bm->pdev->dev, "Unknown battery detected");
++ } else {
++ dev_info(&bm->pdev->dev, "Detected %u mAh battery",
++ (unsigned int)bm->capacity);
++ }
++ } else {
++ bm->capacity = N810BM_CAP_NONE;
++ dev_info(&bm->pdev->dev, "The main battery was removed");
++ //TODO disable charging
++ }
++ }
++
++ if (bm->charger_present != charger_was_present) {
++ /* Charger state changed */
++ dev_info(&bm->pdev->dev, "The charger was %s",
++ bm->charger_present ? "plugged in" : "removed");
++ n810bm_notify_charger_present(bm);
++ }
++
++ if ((bm->battery_present && !bm->charger_present) ||
++ !n810bm_known_battery_present(bm)){
++ /* We're draining the battery */
++ mv = n810bm_measure_batt_voltage(bm);
++ if (mv < 0) {
++ n810bm_emergency(bm,
++ "check: Failed to measure voltage");
++ }
++ if (mv < N810BM_MIN_VOLTAGE_THRES) {
++ n810bm_emergency(bm,
++ "check: Minimum voltage threshold reached");
++ }
++ }
++
++ if (bm->charger_present && n810bm_known_battery_present(bm)) {
++ /* Known battery and charger are connected */
++ if (bm->charger_enabled) {
++ /* Charger is enabled */
++ if (!lipocharge_is_charging(&bm->charger)) {
++ //TODO start charging, if battery is below some threshold
++ n810bm_start_charge(bm);
++ }
++ }
++ }
++
++ if (lipocharge_is_charging(&bm->charger) && !bm->charger_present) {
++ /* Charger was unplugged. */
++ n810bm_stop_charge(bm);
++ }
++
++ mutex_unlock(&bm->mutex);
++ schedule_delayed_work(&bm->periodic_check_work,
++ round_jiffies_relative(N810BM_CHECK_INTERVAL));
++}
++
++/*XXX
++static void n810bm_adc_irq_handler(unsigned long data)
++{
++ struct n810bm *bm = (struct n810bm *)data;
++
++ retu_ack_irq(RETU_INT_ADCS);
++ //TODO
++dev_info(&bm->pdev->dev, "ADC interrupt triggered\n");
++}
++*/
++
++static irqreturn_t n810bm_tahvo_current_measure_irq_handler(int irq, void *data)
++{
++ struct n810bm *bm = data;
++ int res, ma, mv, temp;
++
++ mutex_lock(&bm->mutex);
++ if (!lipocharge_is_charging(&bm->charger))
++ goto out_unlock;
++
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ TAHVO_REG_CHGCTL_PWMOVR);
++ ma = n810bm_measure_batt_current(bm);
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO);
++ msleep(10);
++ mv = n810bm_measure_batt_voltage(bm);
++ tahvo_maskset(bm, TAHVO_REG_CHGCTL,
++ TAHVO_REG_CHGCTL_PWMOVR |
++ TAHVO_REG_CHGCTL_PWMOVRZERO,
++ 0);
++ temp = n810bm_measure_batt_temp(bm);
++ if (WARN_ON(mv < 0))
++ goto out_unlock;
++ if (WARN_ON(temp < 0))
++ goto out_unlock;
++
++ if (bm->verbose_charge_log) {
++ dev_info(&bm->pdev->dev,
++ "Battery charge state: %d mV, %d mA (%s)",
++ mv, ma,
++ (ma <= 0) ? "discharging" : "charging");
++ }
++ res = lipocharge_update_state(&bm->charger, mv, ma, temp);
++ if (res) {
++ if (res > 0)
++ dev_info(&bm->pdev->dev, "Battery fully charged");
++ n810bm_stop_charge(bm);
++ }
++out_unlock:
++ mutex_unlock(&bm->mutex);
++
++ return IRQ_HANDLED;
++}
++
++#define DEFINE_ATTR_NOTIFY(attr_name) \
++ void n810bm_notify_##attr_name(struct n810bm *bm) \
++ { \
++ set_bit(N810BM_NOTIFY_##attr_name, &bm->notify_flags); \
++ wmb(); \
++ schedule_work(&bm->notify_work); \
++ }
++
++#define DEFINE_SHOW_INT_FUNC(name, member) \
++ static ssize_t n810bm_attr_##name##_show(struct device *dev, \
++ struct device_attribute *attr, \
++ char *buf) \
++ { \
++ struct n810bm *bm = device_to_n810bm(dev); \
++ ssize_t count; \
++ \
++ mutex_lock(&bm->mutex); \
++ count = snprintf(buf, PAGE_SIZE, "%d\n", (int)(bm->member)); \
++ mutex_unlock(&bm->mutex); \
++ \
++ return count; \
++ }
++
++#define DEFINE_STORE_INT_FUNC(name, member) \
++ static ssize_t n810bm_attr_##name##_store(struct device *dev, \
++ struct device_attribute *attr,\
++ const char *buf, size_t count)\
++ { \
++ struct n810bm *bm = device_to_n810bm(dev); \
++ long val; \
++ int err; \
++ \
++ mutex_lock(&bm->mutex); \
++ err = strict_strtol(buf, 0, &val); \
++ if (!err) \
++ bm->member = (typeof(bm->member))val; \
++ mutex_unlock(&bm->mutex); \
++ \
++ return err ? err : count; \
++ }
++
++#define DEFINE_ATTR_SHOW_INT(name, member) \
++ DEFINE_SHOW_INT_FUNC(name, member) \
++ static DEVICE_ATTR(name, S_IRUGO, \
++ n810bm_attr_##name##_show, NULL);
++
++#define DEFINE_ATTR_SHOW_STORE_INT(name, member) \
++ DEFINE_SHOW_INT_FUNC(name, member) \
++ DEFINE_STORE_INT_FUNC(name, member) \
++ static DEVICE_ATTR(name, S_IRUGO | S_IWUSR, \
++ n810bm_attr_##name##_show, \
++ n810bm_attr_##name##_store);
++
++DEFINE_ATTR_SHOW_INT(battery_present, battery_present);
++DEFINE_ATTR_SHOW_INT(charger_present, charger_present);
++static DEFINE_ATTR_NOTIFY(charger_present);
++DEFINE_ATTR_SHOW_INT(charger_state, charger.state);
++static DEFINE_ATTR_NOTIFY(charger_state);
++DEFINE_ATTR_SHOW_INT(charger_pwm, active_current_pwm);
++static DEFINE_ATTR_NOTIFY(charger_pwm);
++DEFINE_ATTR_SHOW_STORE_INT(charger_enable, charger_enabled);
++DEFINE_ATTR_SHOW_STORE_INT(charger_verbose, verbose_charge_log);
++
++static ssize_t n810bm_attr_battery_level_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = -ENODEV;
++ int millivolt;
++
++ mutex_lock(&bm->mutex);
++ if (!bm->battery_present || lipocharge_is_charging(&bm->charger))
++ millivolt = 0;
++ else
++ millivolt = n810bm_measure_batt_voltage(bm);
++ if (millivolt >= 0) {
++ count = snprintf(buf, PAGE_SIZE, "%u\n",
++ n810bm_mvolt2percent(millivolt));
++ }
++ mutex_unlock(&bm->mutex);
++
++ return count;
++}
++static DEVICE_ATTR(battery_level, S_IRUGO,
++ n810bm_attr_battery_level_show, NULL);
++
++static ssize_t n810bm_attr_battery_capacity_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count;
++ int capacity = 0;
++
++ mutex_lock(&bm->mutex);
++ if (n810bm_known_battery_present(bm))
++ capacity = (int)bm->capacity;
++ count = snprintf(buf, PAGE_SIZE, "%d\n", capacity);
++ mutex_unlock(&bm->mutex);
++
++ return count;
++}
++static DEVICE_ATTR(battery_capacity, S_IRUGO,
++ n810bm_attr_battery_capacity_show, NULL);
++
++static ssize_t n810bm_attr_battery_temp_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = -ENODEV;
++ int k;
++
++ mutex_lock(&bm->mutex);
++ k = n810bm_measure_batt_temp(bm);
++ if (k >= 0)
++ count = snprintf(buf, PAGE_SIZE, "%d\n", k);
++ mutex_unlock(&bm->mutex);
++
++ return count;
++}
++static DEVICE_ATTR(battery_temp, S_IRUGO,
++ n810bm_attr_battery_temp_show, NULL);
++
++static ssize_t n810bm_attr_charger_voltage_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = -ENODEV;
++ int mv = 0;
++
++ mutex_lock(&bm->mutex);
++ if (bm->charger_present)
++ mv = n810bm_measure_charger_voltage(bm);
++ if (mv >= 0)
++ count = snprintf(buf, PAGE_SIZE, "%d\n", mv);
++ mutex_unlock(&bm->mutex);
++
++ return count;
++}
++static DEVICE_ATTR(charger_voltage, S_IRUGO,
++ n810bm_attr_charger_voltage_show, NULL);
++
++static ssize_t n810bm_attr_backup_battery_voltage_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = -ENODEV;
++ int mv;
++
++ mutex_lock(&bm->mutex);
++ mv = n810bm_measure_backup_batt_voltage(bm);
++ if (mv >= 0)
++ count = snprintf(buf, PAGE_SIZE, "%d\n", mv);
++ mutex_unlock(&bm->mutex);
++
++ return count;
++}
++static DEVICE_ATTR(backup_battery_voltage, S_IRUGO,
++ n810bm_attr_backup_battery_voltage_show, NULL);
++
++static ssize_t n810bm_attr_battery_current_show(struct device *dev,
++ struct device_attribute *attr,
++ char *buf)
++{
++ struct n810bm *bm = device_to_n810bm(dev);
++ ssize_t count = -ENODEV;
++ int ma = 0;
++
++ mutex_lock(&bm->mutex);
++ if (bm->battery_present)
++ ma = n810bm_measure_batt_current_async(bm);
++ count = snprintf(buf, PAGE_SIZE, "%d\n", ma);
++ mutex_unlock(&bm->mutex);
++
++ return count;
++}
++static DEVICE_ATTR(battery_current, S_IRUGO,
++ n810bm_attr_battery_current_show, NULL);
++
++static const struct device_attribute *n810bm_attrs[] = {
++ &dev_attr_battery_present,
++ &dev_attr_battery_level,
++ &dev_attr_battery_current,
++ &dev_attr_battery_capacity,
++ &dev_attr_battery_temp,
++ &dev_attr_backup_battery_voltage,
++ &dev_attr_charger_present,
++ &dev_attr_charger_state,
++ &dev_attr_charger_verbose,
++ &dev_attr_charger_voltage,
++ &dev_attr_charger_enable,
++ &dev_attr_charger_pwm,
++};
++
++static void n810bm_notify_work(struct work_struct *work)
++{
++ struct n810bm *bm = container_of(work, struct n810bm, notify_work);
++ unsigned long notify_flags;
++
++ notify_flags = xchg(&bm->notify_flags, 0);
++ mb();
++
++#define do_notify(attr_name) \
++ do { \
++ if (notify_flags & (1 << N810BM_NOTIFY_##attr_name)) { \
++ sysfs_notify(&bm->pdev->dev.kobj, NULL, \
++ dev_attr_##attr_name.attr.name); \
++ } \
++ } while (0)
++
++ do_notify(charger_present);
++ do_notify(charger_state);
++ do_notify(charger_pwm);
++}
++
++static int n810bm_charger_set_current_pwm(struct lipocharge *c,
++ unsigned int duty_cycle)
++{
++ struct n810bm *bm = container_of(c, struct n810bm, charger);
++ int err = -EINVAL;
++
++ WARN_ON(!mutex_is_locked(&bm->mutex));
++ if (WARN_ON(duty_cycle > 0xFF))
++ goto out;
++ if (WARN_ON(!bm->charger_enabled))
++ goto out;
++ if (WARN_ON(!bm->battery_present || !bm->charger_present))
++ goto out;
++
++ if (duty_cycle != bm->active_current_pwm) {
++ bm->active_current_pwm = duty_cycle;
++ tahvo_write(bm, TAHVO_REG_CHGCURR, duty_cycle);
++ n810bm_notify_charger_pwm(bm);
++ }
++
++ err = 0;
++out:
++
++ return err;
++}
++
++static void n810bm_charger_emergency(struct lipocharge *c)
++{
++ struct n810bm *bm = container_of(c, struct n810bm, charger);
++
++ n810bm_emergency(bm, "Battery charger fault");
++}
++
++static void n810bm_hw_exit(struct n810bm *bm)
++{
++ n810bm_stop_charge(bm);
++ retu_write(bm, RETU_REG_ADCSCR, 0);
++}
++
++static int n810bm_hw_init(struct n810bm *bm)
++{
++ int err;
++
++ err = n810bm_check_adc_sanity(bm);
++ if (err)
++ return err;
++
++ n810bm_stop_charge(bm);
++
++ return 0;
++}
++
++static void n810bm_cancel_and_flush_work(struct n810bm *bm)
++{
++ cancel_delayed_work_sync(&bm->periodic_check_work);
++ cancel_work_sync(&bm->notify_work);
++ flush_scheduled_work();
++}
++
++static int n810bm_device_init(struct n810bm *bm)
++{
++ int attr_index;
++ int err;
++
++ bm->charger.rate = LIPORATE_p6C;
++ bm->charger.top_voltage = 4100;
++ bm->charger.duty_cycle_max = 0xFF;
++ bm->charger.set_current_pwm = n810bm_charger_set_current_pwm;
++ bm->charger.emergency = n810bm_charger_emergency;
++ lipocharge_init(&bm->charger, &bm->pdev->dev);
++
++ err = n810bm_hw_init(bm);
++ if (err)
++ goto error;
++ for (attr_index = 0; attr_index < ARRAY_SIZE(n810bm_attrs); attr_index++) {
++ err = device_create_file(&bm->pdev->dev, n810bm_attrs[attr_index]);
++ if (err)
++ goto err_unwind_attrs;
++ }
++/*XXX
++ err = retu_request_irq(RETU_INT_ADCS,
++ n810bm_adc_irq_handler,
++ (unsigned long)bm, "n810bm");
++ if (err)
++ goto err_unwind_attrs;
++*/
++ bm->tahvo_irq = platform_get_irq(n810bm_tahvo_device, 0);
++ err = request_threaded_irq(bm->tahvo_irq, NULL,
++ n810bm_tahvo_current_measure_irq_handler,
++ IRQF_ONESHOT, "tahvo-n810bm", bm);
++ if (err)
++ goto err_free_retu_irq;
++ disable_irq_nosync(bm->tahvo_irq);
++ bm->tahvo_irq_enabled = 0;
++
++ schedule_delayed_work(&bm->periodic_check_work,
++ round_jiffies_relative(N810BM_CHECK_INTERVAL));
++
++ bm->initialized = 1;
++ dev_info(&bm->pdev->dev, "Battery management initialized");
++
++ return 0;
++
++err_free_retu_irq:
++//XXX retu_free_irq(RETU_INT_ADCS);
++err_unwind_attrs:
++ for (attr_index--; attr_index >= 0; attr_index--)
++ device_remove_file(&bm->pdev->dev, n810bm_attrs[attr_index]);
++/*err_exit:*/
++ n810bm_hw_exit(bm);
++error:
++ n810bm_cancel_and_flush_work(bm);
++
++ return err;
++}
++
++static void n810bm_device_exit(struct n810bm *bm)
++{
++ int i;
++
++ if (!bm->initialized)
++ return;
++
++ lipocharge_exit(&bm->charger);
++ free_irq(bm->tahvo_irq, bm);
++//XXX retu_free_irq(RETU_INT_ADCS);
++ for (i = 0; i < ARRAY_SIZE(n810bm_attrs); i++)
++ device_remove_file(&bm->pdev->dev, n810bm_attrs[i]);
++
++ n810bm_cancel_and_flush_work(bm);
++
++ n810bm_hw_exit(bm);
++
++ bm->initialized = 0;
++}
++
++static void n810bm_pmm_block_found(const struct firmware *fw, void *context)
++{
++ struct n810bm *bm = context;
++ int err;
++
++ if (!fw) {
++ dev_err(&bm->pdev->dev,
++ "CAL PMM block image file not found");
++ goto err_release;
++ }
++ if (fw->size != N810BM_PMM_BLOCK_SIZE ||
++ memcmp(fw->data, "BME-PMM-BLOCK01", 15) != 0) {
++ dev_err(&bm->pdev->dev,
++ "CAL PMM block image file has an invalid format");
++ goto err_release;
++ }
++
++ err = n810bm_parse_pmm_block(bm, fw);
++ if (err)
++ goto err_release;
++ release_firmware(fw);
++
++ err = n810bm_device_init(bm);
++ if (err) {
++ dev_err(&bm->pdev->dev,
++ "Failed to initialized battery management (%d)", err);
++ goto error;
++ }
++
++ return;
++err_release:
++ release_firmware(fw);
++error:
++ return;
++}
++
++static int __devinit n810bm_probe(void)
++{
++ struct n810bm *bm;
++ int err;
++
++ if (!n810bm_retu_device || !n810bm_tahvo_device)
++ return 0;
++
++ bm = kzalloc(sizeof(*bm), GFP_KERNEL);
++ if (!bm)
++ return -ENOMEM;
++ bm->pdev = n810bm_retu_device;
++ platform_set_drvdata(n810bm_retu_device, bm);
++ platform_set_drvdata(n810bm_tahvo_device, bm);
++ mutex_init(&bm->mutex);
++ INIT_DELAYED_WORK(&bm->periodic_check_work, n810bm_periodic_check_work);
++ INIT_WORK(&bm->notify_work, n810bm_notify_work);
++
++ dev_info(&bm->pdev->dev, "Requesting CAL BME PMM block firmware file "
++ N810BM_PMM_BLOCK_FILENAME);
++ err = request_firmware_nowait(THIS_MODULE, 1,
++ N810BM_PMM_BLOCK_FILENAME,
++ &bm->pdev->dev, GFP_KERNEL,
++ bm, n810bm_pmm_block_found);
++ if (err) {
++ dev_err(&bm->pdev->dev,
++ "Failed to request CAL PMM block image file (%d)", err);
++ goto err_free;
++ }
++
++ return 0;
++
++err_free:
++ kfree(bm);
++
++ return err;
++}
++
++static void __devexit n810bm_remove(void)
++{
++ struct n810bm *bm;
++
++ if (!n810bm_retu_device || !n810bm_tahvo_device)
++ return;
++ bm = platform_get_drvdata(n810bm_retu_device);
++
++ n810bm_device_exit(bm);
++
++ kfree(bm);
++ platform_set_drvdata(n810bm_retu_device, NULL);
++ platform_set_drvdata(n810bm_tahvo_device, NULL);
++}
++
++static int __devinit n810bm_retu_probe(struct platform_device *pdev)
++{
++ n810bm_retu_device = pdev;
++ return n810bm_probe();
++}
++
++static int __devexit n810bm_retu_remove(struct platform_device *pdev)
++{
++ n810bm_remove();
++ n810bm_retu_device = NULL;
++ return 0;
++}
++
++static int __devinit n810bm_tahvo_probe(struct platform_device *pdev)
++{
++ n810bm_tahvo_device = pdev;
++ return n810bm_probe();
++}
++
++static int __devexit n810bm_tahvo_remove(struct platform_device *pdev)
++{
++ n810bm_remove();
++ n810bm_tahvo_device = NULL;
++ return 0;
++}
++
++static struct platform_driver n810bm_retu_driver = {
++ .remove = __devexit_p(n810bm_retu_remove),
++ .driver = {
++ .name = "retu-n810bm",
++ }
++};
++
++static struct platform_driver n810bm_tahvo_driver = {
++ .remove = __devexit_p(n810bm_tahvo_remove),
++ .driver = {
++ .name = "tahvo-n810bm",
++ }
++};
++
++static int __init n810bm_modinit(void)
++{
++ int err;
++
++ err = platform_driver_probe(&n810bm_retu_driver, n810bm_retu_probe);
++ if (err)
++ return err;
++ err = platform_driver_probe(&n810bm_tahvo_driver, n810bm_tahvo_probe);
++ if (err) {
++ platform_driver_unregister(&n810bm_retu_driver);
++ return err;
++ }
++
++ return 0;
++}
++module_init(n810bm_modinit);
++
++static void __exit n810bm_modexit(void)
++{
++ platform_driver_unregister(&n810bm_tahvo_driver);
++ platform_driver_unregister(&n810bm_retu_driver);
++}
++module_exit(n810bm_modexit);
++
++MODULE_DESCRIPTION("Nokia n810 battery management");
++MODULE_FIRMWARE(N810BM_PMM_BLOCK_FILENAME);
++MODULE_LICENSE("GPL");
++MODULE_AUTHOR("Michael Buesch");
+--- /dev/null
++++ b/drivers/cbus/lipocharge.c
+@@ -0,0 +1,183 @@
++/*
++ * Generic LIPO battery charger
++ *
++ * Copyright (c) 2010-2011 Michael Buesch <mb@bu3sch.de>
++ *
++ * This program is free software; you can redistribute it and/or
++ * modify it under the terms of the GNU General Public License
++ * as published by the Free Software Foundation; either version 2
++ * of the License, or (at your option) any later version.
++ *
++ * This program is distributed in the hope that it will be useful,
++ * but WITHOUT ANY WARRANTY; without even the implied warranty of
++ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
++ * GNU General Public License for more details.
++ */
++
++#define DEBUG
++
++#include "lipocharge.h"
++
++#include <linux/slab.h>
++
++
++/* Hysteresis constants */
++#define CURRENT_HYST 30 /* mA */
++#define VOLTAGE_HYST 10 /* mV */
++
++/* Threshold constants */
++#define FINISH_CURRENT_PERCENT 3
++
++
++/* Returns the requested first-stage charge current in mA */
++static inline unsigned int get_stage1_charge_current(struct lipocharge *c)
++{
++ /* current = (capacity * C) */
++ return c->capacity * c->rate / 1000;
++}
++
++void lipocharge_init(struct lipocharge *c, struct device *dev)
++{
++ c->dev = dev;
++ c->state = LIPO_IDLE;
++}
++
++void lipocharge_exit(struct lipocharge *c)
++{
++ c->state = LIPO_IDLE;
++}
++
++int lipocharge_start(struct lipocharge *c)
++{
++ int err;
++
++ if (c->state != LIPO_IDLE)
++ return -EBUSY;
++ if (!c->set_current_pwm || !c->emergency)
++ return -EINVAL;
++ if (!c->top_voltage || c->top_voltage > 4200)
++ return -EINVAL;
++
++ c->active_duty_cycle = 0;
++ err = c->set_current_pwm(c, c->active_duty_cycle);
++ if (err)
++ return err;
++ c->state = LIPO_FIRST_STAGE;
++
++ return 0;
++}
++
++void lipocharge_stop(struct lipocharge *c)
++{
++ if (c->state == LIPO_IDLE)
++ return;
++ c->state = LIPO_IDLE;
++}
++
++static int lipocharge_increase_current(struct lipocharge *c,
++ unsigned int inc_permille)
++{
++ int old_pwm, new_pwm;
++
++ if (c->active_duty_cycle >= c->duty_cycle_max)
++ return 0;
++
++ old_pwm = c->active_duty_cycle;
++ new_pwm = old_pwm + (c->duty_cycle_max * inc_permille / 1000);
++ new_pwm = min(new_pwm, (int)c->duty_cycle_max);
++ c->active_duty_cycle = new_pwm;
++
++ dev_dbg(c->dev, "lipo: Increasing duty_cycle by "
++ "%u permille (0x%02X -> 0x%02X)",
++ inc_permille, old_pwm, new_pwm);
++
++ return c->set_current_pwm(c, c->active_duty_cycle);
++}
++
++static int lipocharge_decrease_current(struct lipocharge *c,
++ unsigned int dec_permille)
++{
++ int old_pwm, new_pwm;
++
++ if (c->active_duty_cycle <= 0)
++ return 0;
++
++ old_pwm = c->active_duty_cycle;
++ new_pwm = old_pwm - (c->duty_cycle_max * dec_permille / 1000);
++ new_pwm = max(0, new_pwm);
++ c->active_duty_cycle = new_pwm;
++
++ dev_dbg(c->dev, "lipo: Decreasing duty_cycle by "
++ "%u permille (0x%02X -> 0x%02X)",
++ dec_permille, old_pwm, new_pwm);
++
++ return c->set_current_pwm(c, c->active_duty_cycle);
++}
++
++/** lipocharge_update_state - Update the charge state
++ * @c: The context.
++ * @voltage_mV: The measured battery voltage.
++ * @current_mA: The measured charge current.
++ * negative -> drain.
++ * positive -> charge.
++ * @temp_K: Battery temperature in K.
++ *
++ * Returns 0 on success, -1 on error.
++ * Returns 1, if the charging process is finished.
++ */
++int lipocharge_update_state(struct lipocharge *c,
++ unsigned int voltage_mV,
++ int current_mA,
++ unsigned int temp_K)
++{
++ int requested_current, current_diff;
++ int err;
++ unsigned int permille;
++
++ //TODO temp
++
++restart:
++ switch (c->state) {
++ case LIPO_IDLE:
++ dev_err(c->dev, "%s: called while idle", __func__);
++ return -EINVAL;
++ case LIPO_FIRST_STAGE: /* Constant current */
++//printk("GOT %u %d %u\n", voltage_mV, current_mA, temp_K);
++ if (voltage_mV >= c->top_voltage) {
++ /* Float voltage reached.
++ * Switch charger mode to "constant current" */
++ c->state = LIPO_SECOND_STAGE;
++ dev_dbg(c->dev, "Switched to second charging stage.");
++ goto restart;
++ }
++ /* Float voltage not reached, yet.
++ * Try to get the requested constant current. */
++ requested_current = get_stage1_charge_current(c);
++ if (current_mA < 0)
++ current_mA = 0;
++ current_diff = requested_current - current_mA;
++ if (abs(requested_current - current_mA) > CURRENT_HYST) {
++ if (current_diff > 0) {
++ /* Increase current */
++ permille = current_diff * 1000 / requested_current;
++ permille /= 2;
++ err = lipocharge_increase_current(c, permille);
++ if (err)
++ return err;
++ } else {
++ /* Decrease current */
++ permille = (-current_diff) * 1000 / requested_current;
++ permille /= 2;
++ err = lipocharge_decrease_current(c, permille);
++ if (err)
++ return err;
++ }
++ }
++ break;
++ case LIPO_SECOND_STAGE: /* Constant voltage */
++ //TODO
++ break;
++ }
++
++ return 0;
++}
+--- /dev/null
++++ b/drivers/cbus/lipocharge.h
+@@ -0,0 +1,60 @@
++#ifndef LIPOCHARGE_H_
++#define LIPOCHARGE_H_
++
++#include <linux/types.h>
++#include <linux/device.h>
++
++
++#define LIPORATE(a,b) (((a) * 1000) + ((b) * 100))
++#define LIPORATE_p6C LIPORATE(0,6) /* 0.6C */
++
++enum lipocharge_state {
++ LIPO_IDLE = 0, /* Not charging */
++ LIPO_FIRST_STAGE, /* Charging: constant current */
++ LIPO_SECOND_STAGE, /* Charging: constant voltage */
++};
++
++/** struct lipocharge - A generic LIPO charger
++ *
++ * @capacity: Battery capacity in mAh.
++ * @rate: Charge rate.
++ * @top_voltage: Fully charged voltage, in mV.
++ * @duty_cycle_max: Max value for duty_cycle.
++ *
++ * @set_charge_current: Set the charge current PWM duty cycle.
++ * @emergency: Something went wrong. Force shutdown.
++ */
++struct lipocharge {
++ unsigned int capacity;
++ unsigned int rate;
++ unsigned int top_voltage;
++ unsigned int duty_cycle_max;
++
++ int (*set_current_pwm)(struct lipocharge *c, unsigned int duty_cycle);
++ void (*emergency)(struct lipocharge *c);
++
++ /* internal */
++ struct device *dev;
++ enum lipocharge_state state;
++ unsigned int active_duty_cycle;
++
++ //TODO implement timer to cut power after maximum charge time.
++};
++
++void lipocharge_init(struct lipocharge *c, struct device *dev);
++void lipocharge_exit(struct lipocharge *c);
++
++int lipocharge_start(struct lipocharge *c);
++void lipocharge_stop(struct lipocharge *c);
++
++int lipocharge_update_state(struct lipocharge *c,
++ unsigned int voltage_mV,
++ int current_mA,
++ unsigned int temp_K);
++
++static inline bool lipocharge_is_charging(struct lipocharge *c)
++{
++ return (c->state != LIPO_IDLE);
++}
++
++#endif /* LIPOCHARGE_H_ */
+--- a/drivers/cbus/cbus.c
++++ b/drivers/cbus/cbus.c
+@@ -36,6 +36,7 @@
+ #include <linux/gpio.h>
+ #include <linux/platform_device.h>
+ #include <linux/platform_data/cbus.h>
++#include <linux/reboot.h>
+
+ #include "cbus.h"
+
+@@ -326,6 +327,13 @@ static void __exit cbus_bus_exit(void)
+ }
+ module_exit(cbus_bus_exit);
+
++void cbus_emergency(void)
++{
++ machine_power_off();
++ panic("cbus: Failed to halt machine in emergency state\n");
++}
++EXPORT_SYMBOL(cbus_emergency);
++
+ MODULE_DESCRIPTION("CBUS serial protocol");
+ MODULE_LICENSE("GPL");
+ MODULE_AUTHOR("Juha Yrjölä");
+--- a/drivers/cbus/cbus.h
++++ b/drivers/cbus/cbus.h
+@@ -27,4 +27,6 @@ extern int cbus_read_reg(struct device *
+ extern int cbus_write_reg(struct device *, unsigned dev, unsigned reg,
+ unsigned val);
+
++void cbus_emergency(void) __noreturn;
++
+ #endif /* __DRIVERS_CBUS_CBUS_H */
+--- a/drivers/cbus/retu.c
++++ b/drivers/cbus/retu.c
+@@ -399,6 +399,11 @@ static int retu_allocate_children(struct
+ if (!child)
+ return -ENOMEM;
+
++ child = retu_allocate_child("retu-n810bm", parent, irq_base,
++ RETU_INT_ADCS, -1, 1);
++ if (!child)
++ return -ENOMEM;
++
+ return 0;
+ }
+
+--- a/drivers/cbus/tahvo.c
++++ b/drivers/cbus/tahvo.c
+@@ -129,6 +129,7 @@ void tahvo_set_clear_reg_bits(struct dev
+ __tahvo_write_reg(tahvo, reg, w);
+ mutex_unlock(&tahvo->mutex);
+ }
++EXPORT_SYMBOL(tahvo_set_clear_reg_bits);
+
+ static irqreturn_t tahvo_irq_handler(int irq, void *_tahvo)
+ {
+@@ -292,6 +293,11 @@ static int tahvo_allocate_children(struc
+ if (!child)
+ return -ENOMEM;
+
++ child = tahvo_allocate_child("tahvo-n810bm", parent,
++ irq_base + TAHVO_INT_BATCURR);
++ if (!child)
++ return -ENOMEM;
++
+ return 0;
+ }
+
--- /dev/null
+--- a/arch/arm/plat-omap/omap_device.c
++++ b/arch/arm/plat-omap/omap_device.c
+@@ -619,7 +619,7 @@ static void omap_device_delete(struct om
+ * information. Returns ERR_PTR(-EINVAL) if @oh is NULL; otherwise,
+ * passes along the return value of omap_device_build_ss().
+ */
+-struct platform_device *omap_device_build(const char *pdev_name, int pdev_id,
++struct platform_device *__init omap_device_build(const char *pdev_name, int pdev_id,
+ struct omap_hwmod *oh, void *pdata,
+ int pdata_len,
+ struct omap_device_pm_latency *pm_lats,
+@@ -652,7 +652,7 @@ struct platform_device *omap_device_buil
+ * platform_device record. Returns an ERR_PTR() on error, or passes
+ * along the return value of omap_device_register().
+ */
+-struct platform_device *omap_device_build_ss(const char *pdev_name, int pdev_id,
++struct platform_device *__init omap_device_build_ss(const char *pdev_name, int pdev_id,
+ struct omap_hwmod **ohs, int oh_cnt,
+ void *pdata, int pdata_len,
+ struct omap_device_pm_latency *pm_lats,
+@@ -717,7 +717,7 @@ odbs_exit:
+ * platform_early_add_device() on the underlying platform_device.
+ * Returns 0 by default.
+ */
+-static int omap_early_device_register(struct platform_device *pdev)
++static int __init omap_early_device_register(struct platform_device *pdev)
+ {
+ struct platform_device *devices[1];
+
+--- a/arch/arm/plat-omap/common.c
++++ b/arch/arm/plat-omap/common.c
+@@ -29,7 +29,7 @@
+
+ #define NO_LENGTH_CHECK 0xffffffff
+
+-struct omap_board_config_kernel *omap_board_config __initdata;
++struct omap_board_config_kernel *omap_board_config;
+ int omap_board_config_size;
+
+ unsigned char omap_bootloader_tag[1024];
+@@ -58,7 +58,7 @@ __tagtable(ATAG_BOARD, parse_tag_omap);
+
+ #endif
+
+-static const void *__init get_config(u16 tag, size_t len,
++static const void *get_config(u16 tag, size_t len,
+ int skip, size_t *len_out)
+ {
+ struct omap_board_config_kernel *kinfo = NULL;
+@@ -125,12 +125,12 @@ static const void *__init get_config(u16
+ return kinfo->data;
+ }
+
+-const void *__init __omap_get_config(u16 tag, size_t len, int nr)
++const void *__omap_get_config(u16 tag, size_t len, int nr)
+ {
+ return get_config(tag, len, nr, NULL);
+ }
+
+-const void *__init omap_get_var_config(u16 tag, size_t *len)
++const void *omap_get_var_config(u16 tag, size_t *len)
+ {
+ return get_config(tag, NO_LENGTH_CHECK, 0, len);
+ }
+--- a/arch/arm/mach-omap2/devices.c
++++ b/arch/arm/mach-omap2/devices.c
+@@ -380,7 +380,7 @@ static inline void omap_init_dmic(void)
+
+ #include <plat/mcspi.h>
+
+-static int omap_mcspi_init(struct omap_hwmod *oh, void *unused)
++static int __init omap_mcspi_init(struct omap_hwmod *oh, void *unused)
+ {
+ struct platform_device *pdev;
+ char *name = "omap2_mcspi";
+--- a/arch/arm/mach-omap2/gpio.c
++++ b/arch/arm/mach-omap2/gpio.c
+@@ -24,7 +24,7 @@
+ #include <plat/omap_hwmod.h>
+ #include <plat/omap_device.h>
+
+-static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
++static int __init omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
+ {
+ struct platform_device *pdev;
+ struct omap_gpio_platform_data *pdata;
+--- a/arch/arm/mach-omap2/mcbsp.c
++++ b/arch/arm/mach-omap2/mcbsp.c
+@@ -122,7 +122,7 @@ static int omap3_enable_st_clock(unsigne
+ return 0;
+ }
+
+-static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
++static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
+ {
+ int id, count = 1;
+ char *name = "omap-mcbsp";
+--- a/arch/arm/plat-omap/include/plat/board.h
++++ b/arch/arm/plat-omap/include/plat/board.h
+@@ -159,14 +159,14 @@ struct omap_gpio_switch_config {
+ int key_code:24; /* Linux key code */
+ };
+
+-extern const void *__init __omap_get_config(u16 tag, size_t len, int nr);
++extern const void * __omap_get_config(u16 tag, size_t len, int nr);
+
+ #define omap_get_config(tag, type) \
+ ((const type *) __omap_get_config((tag), sizeof(type), 0))
+ #define omap_get_nr_config(tag, type, nr) \
+ ((const type *) __omap_get_config((tag), sizeof(type), (nr)))
+
+-extern const void *__init omap_get_var_config(u16 tag, size_t *len);
++extern const void * omap_get_var_config(u16 tag, size_t *len);
+
+ extern struct omap_board_config_kernel *omap_board_config;
+ extern int omap_board_config_size;
projects / openwrt / openwrt.git / commitdiff