$(eval $(call KernelPackage,ledtrig-morse))
+define KernelPackage/gpio-dev
+ SUBMENU:=$(OTHER_MENU)
+ TITLE:=Generic GPIO char device support
+ DEPENDS:=@GPIO_SUPPORT
+ KCONFIG:=CONFIG_GPIO_DEVICE
+ FILES:=$(LINUX_DIR)/drivers/char/gpio_dev.$(LINUX_KMOD_SUFFIX)
+ AUTOLOAD:=$(call AutoLoad,40,gpio_dev)
+endef
+
+define KernelPackage/gpio-dev/description
+ Kernel module to allows control of GPIO pins using a character device.
+endef
+
+$(eval $(call KernelPackage,gpio-dev))
+
+
define KernelPackage/nsc-gpio
SUBMENU:=$(OTHER_MENU)
TITLE:=Natsemi GPIO support
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_TIME=y
# CONFIG_GFS2_FS is not set
+CONFIG_GPIO_DEVICE=m
# CONFIG_HAMACHI is not set
CONFIG_HAMRADIO=y
# CONFIG_HAPPYMEAL is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_GPIO_DEVICE is not set
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_TIME=y
# CONFIG_GFS2_FS is not set
+CONFIG_GPIO_DEVICE=m
# CONFIG_HAMACHI is not set
CONFIG_HAMRADIO=y
# CONFIG_HAPPYMEAL is not set
CONFIG_ZLIB_INFLATE=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_GPIO_DEVICE is not set
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_TIME=y
# CONFIG_GFS2_FS is not set
+CONFIG_GPIO_DEVICE=m
# CONFIG_GROUP_SCHED is not set
# CONFIG_HAMACHI is not set
CONFIG_HAMRADIO=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_GPIO_DEVICE is not set
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_TIME=y
# CONFIG_GFS2_FS is not set
+CONFIG_GPIO_DEVICE=m
# CONFIG_GROUP_SCHED is not set
# CONFIG_HAMACHI is not set
CONFIG_HAMRADIO=y
CONFIG_ZLIB_INFLATE=y
CONFIG_ZONE_DMA=y
CONFIG_ZONE_DMA_FLAG=1
-# CONFIG_GPIO_DEVICE is not set
CONFIG_GENERIC_IRQ_PROBE=y
CONFIG_GENERIC_TIME=y
# CONFIG_GFS2_FS is not set
+CONFIG_GPIO_DEVICE=m
# CONFIG_HAMACHI is not set
CONFIG_HAMRADIO=y
# CONFIG_HAPPYMEAL is not set
--- /dev/null
+/*
+ * character device wrapper for generic gpio layer
+ *
+ * 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, MA02111-1307USA
+ *
+ * Feedback, Bugs... blogic@openwrt.org
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <asm/uaccess.h>
+#include <asm/io.h>
+#include <asm/gpio.h>
+#include <asm/atomic.h>
+#include <linux/init.h>
+#include <linux/genhd.h>
+#include <linux/device.h>
+#include <linux/platform_device.h>
+#include <linux/gpio_dev.h>
+
+#define DRVNAME "gpiodev"
+#define DEVNAME "gpio"
+
+static int dev_major;
+static unsigned int gpio_access_mask;
+static struct class *gpio_class;
+
+/* Counter is 1, if the device is not opened and zero (or less) if opened. */
+static atomic_t gpio_open_cnt = ATOMIC_INIT(1);
+
+static int
+gpio_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
+{
+ int retval = 0;
+
+ if (((1 << arg) & gpio_access_mask) != (1 << arg))
+ {
+ retval = -EINVAL;
+ goto out;
+ }
+
+ switch (cmd)
+ {
+ case GPIO_GET:
+ retval = gpio_get_value(arg);
+ break;
+
+ case GPIO_SET:
+ gpio_set_value(arg, 1);
+ break;
+
+ case GPIO_CLEAR:
+ gpio_set_value(arg, 0);
+ break;
+
+ case GPIO_DIR_IN:
+ gpio_direction_input(arg);
+ break;
+
+ case GPIO_DIR_OUT:
+ gpio_direction_output(arg, 0);
+ break;
+
+ default:
+ retval = -EINVAL;
+ break;
+ }
+
+out:
+ return retval;
+}
+
+static int
+gpio_open(struct inode *inode, struct file *file)
+{
+ int result = 0;
+ unsigned int dev_minor = MINOR(inode->i_rdev);
+
+ if (dev_minor != 0)
+ {
+ printk(KERN_ERR DRVNAME ": trying to access unknown minor device -> %d\n", dev_minor);
+ result = -ENODEV;
+ goto out;
+ }
+
+ /* FIXME: We should really allow multiple applications to open the device
+ * at the same time, as long as the apps access different IO pins.
+ * The generic gpio-registration functions can be used for that.
+ * Two new IOCTLs have to be introduced for that. Need to check userspace
+ * compatibility first. --mb */
+ if (!atomic_dec_and_test(&gpio_open_cnt)) {
+ atomic_inc(&gpio_open_cnt);
+ printk(KERN_ERR DRVNAME ": Device with minor ID %d already in use\n", dev_minor);
+ result = -EBUSY;
+ goto out;
+ }
+
+out:
+ return result;
+}
+
+static int
+gpio_close(struct inode * inode, struct file * file)
+{
+ smp_mb__before_atomic_inc();
+ atomic_inc(&gpio_open_cnt);
+
+ return 0;
+}
+
+struct file_operations gpio_fops = {
+ ioctl: gpio_ioctl,
+ open: gpio_open,
+ release: gpio_close
+};
+
+static int
+gpio_probe(struct platform_device *dev)
+{
+ int result = 0;
+
+ dev_major = register_chrdev(0, DEVNAME, &gpio_fops);
+ if (!dev_major)
+ {
+ printk(KERN_ERR DRVNAME ": Error whilst opening %s \n", DEVNAME);
+ result = -ENODEV;
+ goto out;
+ }
+
+ gpio_class = class_create(THIS_MODULE, DEVNAME);
+ class_device_create(gpio_class, NULL, MKDEV(dev_major, 0), NULL, DEVNAME);
+
+ printk(KERN_INFO DRVNAME ": gpio device registered with major %d\n", dev_major);
+
+ if (dev->num_resources != 1)
+ {
+ printk(KERN_ERR DRVNAME ": device may only have 1 resource\n");
+ result = -ENODEV;
+ goto out;
+ }
+
+ gpio_access_mask = dev->resource[0].start;
+
+ printk(KERN_INFO DRVNAME ": gpio platform device registered with access mask %08X\n", gpio_access_mask);
+out:
+ return result;
+}
+
+static int
+gpio_remove(struct platform_device *dev)
+{
+ unregister_chrdev(dev_major, DEVNAME);
+ return 0;
+}
+
+static struct
+platform_driver gpio_driver = {
+ .probe = gpio_probe,
+ .remove = gpio_remove,
+ .driver = {
+ .name = "GPIODEV",
+ .owner = THIS_MODULE,
+ },
+};
+
+static int __init
+gpio_mod_init(void)
+{
+ int ret = platform_driver_register(&gpio_driver);
+ if (ret)
+ printk(KERN_INFO DRVNAME ": Error registering platfom driver!");
+
+ return ret;
+}
+
+static void __exit
+gpio_mod_exit(void)
+{
+ platform_driver_unregister(&gpio_driver);
+}
+
+module_init (gpio_mod_init);
+module_exit (gpio_mod_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("John Crispin / OpenWrt");
+MODULE_DESCRIPTION("Character device for for generic gpio api");
+++ /dev/null
-menuconfig NEW_GPIO
- bool "GPIO Support"
- depends on GENERIC_GPIO
- help
- Say Y to enable Linux GPIO device support. This allows control of
- GPIO pins using a character device
-
-if NEW_GPIO
-
-config GPIO_DEVICE
- tristate "GPIO device support"
- help
- This option enables the gpio character device
-
-endif # NEW_GPIO
+++ /dev/null
-obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o
+++ /dev/null
-/*
- * character device wrapper for generic gpio layer
- *
- * 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, MA02111-1307USA
- *
- * Feedback, Bugs... blogic@openwrt.org
- *
- */
-
-#include <linux/module.h>
-#include <linux/errno.h>
-#include <linux/init.h>
-#include <asm/uaccess.h>
-#include <asm/io.h>
-#include <asm/gpio.h>
-#include <asm/atomic.h>
-#include <linux/init.h>
-#include <linux/genhd.h>
-#include <linux/device.h>
-#include <linux/platform_device.h>
-#include <linux/gpio_dev.h>
-
-#define DRVNAME "gpiodev"
-#define DEVNAME "gpio"
-
-static int dev_major;
-static unsigned int gpio_access_mask;
-static struct class *gpio_class;
-
-/* Counter is 1, if the device is not opened and zero (or less) if opened. */
-static atomic_t gpio_open_cnt = ATOMIC_INIT(1);
-
-static int
-gpio_ioctl(struct inode * inode, struct file * file, unsigned int cmd, unsigned long arg)
-{
- int retval = 0;
-
- if (((1 << arg) & gpio_access_mask) != (1 << arg))
- {
- retval = -EINVAL;
- goto out;
- }
-
- switch (cmd)
- {
- case GPIO_GET:
- retval = gpio_get_value(arg);
- break;
-
- case GPIO_SET:
- gpio_set_value(arg, 1);
- break;
-
- case GPIO_CLEAR:
- gpio_set_value(arg, 0);
- break;
-
- case GPIO_DIR_IN:
- gpio_direction_input(arg);
- break;
-
- case GPIO_DIR_OUT:
- gpio_direction_output(arg, 0);
- break;
-
- default:
- retval = -EINVAL;
- break;
- }
-
-out:
- return retval;
-}
-
-static int
-gpio_open(struct inode *inode, struct file *file)
-{
- int result = 0;
- unsigned int dev_minor = MINOR(inode->i_rdev);
-
- if (dev_minor != 0)
- {
- printk(KERN_ERR DRVNAME ": trying to access unknown minor device -> %d\n", dev_minor);
- result = -ENODEV;
- goto out;
- }
-
- /* FIXME: We should really allow multiple applications to open the device
- * at the same time, as long as the apps access different IO pins.
- * The generic gpio-registration functions can be used for that.
- * Two new IOCTLs have to be introduced for that. Need to check userspace
- * compatibility first. --mb */
- if (!atomic_dec_and_test(&gpio_open_cnt)) {
- atomic_inc(&gpio_open_cnt);
- printk(KERN_ERR DRVNAME ": Device with minor ID %d already in use\n", dev_minor);
- result = -EBUSY;
- goto out;
- }
-
-out:
- return result;
-}
-
-static int
-gpio_close(struct inode * inode, struct file * file)
-{
- smp_mb__before_atomic_inc();
- atomic_inc(&gpio_open_cnt);
-
- return 0;
-}
-
-struct file_operations gpio_fops = {
- ioctl: gpio_ioctl,
- open: gpio_open,
- release: gpio_close
-};
-
-static int
-gpio_probe(struct platform_device *dev)
-{
- int result = 0;
-
- dev_major = register_chrdev(0, DEVNAME, &gpio_fops);
- if (!dev_major)
- {
- printk(KERN_ERR DRVNAME ": Error whilst opening %s \n", DEVNAME);
- result = -ENODEV;
- goto out;
- }
-
- gpio_class = class_create(THIS_MODULE, DEVNAME);
- class_device_create(gpio_class, NULL, MKDEV(dev_major, 0), NULL, DEVNAME);
-
- printk(KERN_INFO DRVNAME ": gpio device registered with major %d\n", dev_major);
-
- if (dev->num_resources != 1)
- {
- printk(KERN_ERR DRVNAME ": device may only have 1 resource\n");
- result = -ENODEV;
- goto out;
- }
-
- gpio_access_mask = dev->resource[0].start;
-
- printk(KERN_INFO DRVNAME ": gpio platform device registered with access mask %08X\n", gpio_access_mask);
-out:
- return result;
-}
-
-static int
-gpio_remove(struct platform_device *dev)
-{
- unregister_chrdev(dev_major, DEVNAME);
- return 0;
-}
-
-static struct
-platform_driver gpio_driver = {
- .probe = gpio_probe,
- .remove = gpio_remove,
- .driver = {
- .name = "GPIODEV",
- .owner = THIS_MODULE,
- },
-};
-
-static int __init
-gpio_mod_init(void)
-{
- int ret = platform_driver_register(&gpio_driver);
- if (ret)
- printk(KERN_INFO DRVNAME ": Error registering platfom driver!");
-
- return ret;
-}
-
-static void __exit
-gpio_mod_exit(void)
-{
- platform_driver_unregister(&gpio_driver);
-}
-
-module_init (gpio_mod_init);
-module_exit (gpio_mod_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("John Crispin / OpenWrt");
-MODULE_DESCRIPTION("Character device for for generic gpio api");
--- /dev/null
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -970,6 +970,13 @@
+
+ If compiled as a module, it will be called cs5535_gpio.
+
++config GPIO_DEVICE
++ tristate "GPIO device support"
++ depends on GENERIC_GPIO
++ help
++ Say Y to enable Linux GPIO device support. This allows control of
++ GPIO pins using a character device
++
+ config GPIO_VR41XX
+ tristate "NEC VR4100 series General-purpose I/O Unit support"
+ depends on CPU_VR41XX
+--- a/drivers/char/Makefile
++++ b/drivers/char/Makefile
+@@ -93,6 +93,7 @@
+ obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o
+ obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o
+ obj-$(CONFIG_CS5535_GPIO) += cs5535_gpio.o
++obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o
+ obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o
+ obj-$(CONFIG_GPIO_TB0219) += tb0219.o
+ obj-$(CONFIG_TELCLOCK) += tlclk.o
+++ /dev/null
---- a/arch/arm/Kconfig
-+++ b/arch/arm/Kconfig
-@@ -1039,6 +1039,8 @@
-
- source "drivers/leds/Kconfig"
-
-+source "drivers/gpio/Kconfig"
-+
- source "drivers/media/Kconfig"
-
- source "drivers/video/Kconfig"
---- a/drivers/Kconfig
-+++ b/drivers/Kconfig
-@@ -76,6 +76,8 @@
-
- source "drivers/leds/Kconfig"
-
-+source "drivers/gpio/Kconfig"
-+
- source "drivers/infiniband/Kconfig"
-
- source "drivers/edac/Kconfig"
---- a/drivers/Makefile
-+++ b/drivers/Makefile
-@@ -89,3 +89,4 @@
- obj-$(CONFIG_HID) += hid/
- obj-$(CONFIG_PPC_PS3) += ps3/
- obj-$(CONFIG_OF) += of/
-+obj-$(CONFIG_GPIO_DEVICE) += gpio/
--- /dev/null
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -946,6 +946,13 @@
+
+ If compiled as a module, it will be called cs5535_gpio.
+
++config GPIO_DEVICE
++ tristate "GPIO device support"
++ depends on GENERIC_GPIO
++ help
++ Say Y to enable Linux GPIO device support. This allows control of
++ GPIO pins using a character device
++
+ config GPIO_VR41XX
+ tristate "NEC VR4100 series General-purpose I/O Unit support"
+ depends on CPU_VR41XX
+--- a/drivers/char/Makefile
++++ b/drivers/char/Makefile
+@@ -93,6 +93,7 @@
+ obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o
+ obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o
+ obj-$(CONFIG_CS5535_GPIO) += cs5535_gpio.o
++obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o
+ obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o
+ obj-$(CONFIG_GPIO_TB0219) += tb0219.o
+ obj-$(CONFIG_TELCLOCK) += tlclk.o
+++ /dev/null
---- a/arch/arm/Kconfig
-+++ b/arch/arm/Kconfig
-@@ -1054,6 +1054,8 @@
-
- source "drivers/mfd/Kconfig"
-
-+source "drivers/gpio/Kconfig"
-+
- source "drivers/media/Kconfig"
-
- source "drivers/video/Kconfig"
---- a/drivers/Kconfig
-+++ b/drivers/Kconfig
-@@ -78,6 +78,8 @@
-
- source "drivers/leds/Kconfig"
-
-+source "drivers/gpio/Kconfig"
-+
- source "drivers/infiniband/Kconfig"
-
- source "drivers/edac/Kconfig"
---- a/drivers/Makefile
-+++ b/drivers/Makefile
-@@ -91,3 +91,4 @@
- obj-$(CONFIG_OF) += of/
- obj-$(CONFIG_SSB) += ssb/
- obj-$(CONFIG_VIRTIO) += virtio/
-+obj-$(CONFIG_GPIO_DEVICE) += gpio/
--- /dev/null
+--- a/drivers/char/Kconfig
++++ b/drivers/char/Kconfig
+@@ -984,6 +984,13 @@
+
+ If compiled as a module, it will be called cs5535_gpio.
+
++config GPIO_DEVICE
++ tristate "GPIO device support"
++ depends on GENERIC_GPIO
++ help
++ Say Y to enable Linux GPIO device support. This allows control of
++ GPIO pins using a character device
++
+ config GPIO_VR41XX
+ tristate "NEC VR4100 series General-purpose I/O Unit support"
+ depends on CPU_VR41XX
+--- a/drivers/char/Makefile
++++ b/drivers/char/Makefile
+@@ -90,6 +90,7 @@
+ obj-$(CONFIG_PC8736x_GPIO) += pc8736x_gpio.o
+ obj-$(CONFIG_NSC_GPIO) += nsc_gpio.o
+ obj-$(CONFIG_CS5535_GPIO) += cs5535_gpio.o
++obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o
+ obj-$(CONFIG_GPIO_VR41XX) += vr41xx_giu.o
+ obj-$(CONFIG_TANBAC_TB0219) += tb0219.o
+ obj-$(CONFIG_TELCLOCK) += tlclk.o
-Index: linux-2.6.21.7/arch/arm/Kconfig
-===================================================================
---- linux-2.6.21.7.orig/arch/arm/Kconfig
-+++ linux-2.6.21.7/arch/arm/Kconfig
-@@ -505,6 +505,8 @@ config PCI_HOST_VIA82C505
+--- a/arch/arm/Kconfig
++++ b/arch/arm/Kconfig
+@@ -505,6 +505,8 @@
depends on PCI && ARCH_SHARK
default y
source "drivers/pci/Kconfig"
source "drivers/pcmcia/Kconfig"
-Index: linux-2.6.21.7/drivers/Makefile
-===================================================================
---- linux-2.6.21.7.orig/drivers/Makefile
-+++ linux-2.6.21.7/drivers/Makefile
-@@ -81,3 +81,4 @@ obj-$(CONFIG_GENERIC_TIME) += clocksourc
+--- a/drivers/Makefile
++++ b/drivers/Makefile
+@@ -81,3 +81,4 @@
obj-$(CONFIG_DMA_ENGINE) += dma/
obj-$(CONFIG_HID) += hid/
obj-$(CONFIG_PPC_PS3) += ps3/
+obj-$(CONFIG_PROC_GPIO) += gpio/
-Index: linux-2.6.21.7/drivers/gpio/Kconfig
-===================================================================
---- linux-2.6.21.7.orig/drivers/gpio/Kconfig
-+++ linux-2.6.21.7/drivers/gpio/Kconfig
-@@ -2,14 +2,27 @@ menuconfig NEW_GPIO
- bool "GPIO Support"
- depends on GENERIC_GPIO
- help
-- Say Y to enable Linux GPIO device support. This allows control of
-- GPIO pins using a character device
-+ Say Y to enable Linux GPIO device support. This allows control of
-+ GPIO pins using a character device
-
- if NEW_GPIO
-
- config GPIO_DEVICE
- tristate "GPIO device support"
- help
-- This option enables the gpio character device
-+ This option enables the gpio character device
-
- endif # NEW_GPIO
-+
+--- /dev/null
++++ b/drivers/gpio/Kconfig
+@@ -0,0 +1,13 @@
+config PROC_GPIO
+ tristate "GPIO /proc interface"
+ depends on PXA25x || PXA27x
+ depends on PROC_GPIO
+ help
+ This enables printk logging of activity done through /proc/gpio
-Index: linux-2.6.21.7/drivers/gpio/Makefile
-===================================================================
---- linux-2.6.21.7.orig/drivers/gpio/Makefile
-+++ linux-2.6.21.7/drivers/gpio/Makefile
-@@ -1 +1,4 @@
- obj-$(CONFIG_GPIO_DEVICE) += gpio_dev.o
+
+--- /dev/null
++++ b/drivers/gpio/Makefile
+@@ -0,0 +1,2 @@
+# Expose GPIOs under /proc
+obj-$(CONFIG_PROC_GPIO) += proc_gpio.o
-Index: linux-2.6.21.7/drivers/gpio/proc_gpio.c
-===================================================================
--- /dev/null
-+++ linux-2.6.21.7/drivers/gpio/proc_gpio.c
++++ b/drivers/gpio/proc_gpio.c
@@ -0,0 +1,276 @@
+/*
+ *
projects / openwrt / staging / yousong.git / commitdiff