[brcm-2.4/brcm47xx] add RTC RV5C386A package
[openwrt/svn-archive/archive.git] / package / rtc-rv5c386a / src / gpio.h
1 #ifndef __DIAG_GPIO_H
2 #define __DIAG_GPIO_H
3 #include <linux/interrupt.h>
4
5 #ifndef BCMDRIVER
6 #include <linux/ssb/ssb_embedded.h>
7
8 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
9 #include <linux/gpio.h>
10 #define ssb ssb_bcm47xx
11 #endif
12 extern struct ssb_bus ssb;
13
14
15 static inline u32 gpio_in(void)
16 {
17 return ssb_gpio_in(&ssb, ~0);
18 }
19
20 static inline u32 gpio_out(u32 mask, u32 value)
21 {
22 return ssb_gpio_out(&ssb, mask, value);
23 }
24
25 static inline u32 gpio_outen(u32 mask, u32 value)
26 {
27 return ssb_gpio_outen(&ssb, mask, value);
28 }
29
30 static inline u32 gpio_control(u32 mask, u32 value)
31 {
32 return ssb_gpio_control(&ssb, mask, value);
33 }
34
35 static inline u32 gpio_setintmask(u32 mask, u32 value)
36 {
37 return ssb_gpio_intmask(&ssb, mask, value);
38 }
39
40 static inline u32 gpio_intpolarity(u32 mask, u32 value)
41 {
42 return ssb_gpio_polarity(&ssb, mask, value);
43 }
44
45 static inline u32 __ssb_write32_masked(struct ssb_device *dev, u16 offset,
46 u32 mask, u32 value)
47 {
48 value &= mask;
49 value |= ssb_read32(dev, offset) & ~mask;
50 ssb_write32(dev, offset, value);
51 return value;
52 }
53
54 static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
55 {
56 int irq;
57
58 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
59 irq = gpio_to_irq(0);
60 if (irq == -EINVAL) return;
61 #else
62 if (ssb.chipco.dev)
63 irq = ssb_mips_irq(ssb.chipco.dev) + 2;
64 else if (ssb.extif.dev)
65 irq = ssb_mips_irq(ssb.extif.dev) + 2;
66 else return;
67 #endif
68
69 if (enabled) {
70 if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
71 return;
72 } else {
73 free_irq(irq, handler);
74 }
75
76 if (ssb.chipco.dev)
77 __ssb_write32_masked(ssb.chipco.dev, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
78 }
79
80 #else
81
82 #include <typedefs.h>
83 #include <osl.h>
84 #include <bcmdevs.h>
85 #include <sbutils.h>
86 #include <sbconfig.h>
87 #include <sbchipc.h>
88 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
89 #include <sbmips.h>
90 #else
91 #include <hndcpu.h>
92 #endif
93
94 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
95 #define sbh bcm947xx_sbh
96 #define sbh_lock bcm947xx_sbh_lock
97 #endif
98
99 extern void *sbh;
100 extern spinlock_t sbh_lock;
101
102 #define gpio_in() sb_gpioin(sbh)
103 #define gpio_out(mask, value) sb_gpioout(sbh, mask, ((value) & (mask)), GPIO_DRV_PRIORITY)
104 #define gpio_outen(mask, value) sb_gpioouten(sbh, mask, value, GPIO_DRV_PRIORITY)
105 #define gpio_control(mask, value) sb_gpiocontrol(sbh, mask, value, GPIO_DRV_PRIORITY)
106 #define gpio_setintmask(mask, value) sb_gpiointmask(sbh, mask, value, GPIO_DRV_PRIORITY)
107 #define gpio_intpolarity(mask, value) sb_gpiointpolarity(sbh, mask, value, GPIO_DRV_PRIORITY)
108
109 static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *, struct pt_regs *))
110 {
111 unsigned int coreidx;
112 unsigned long flags;
113 chipcregs_t *cc;
114 int irq;
115
116 spin_lock_irqsave(sbh_lock, flags);
117 coreidx = sb_coreidx(sbh);
118
119 irq = sb_irq(sbh) + 2;
120 if (enabled)
121 request_irq(irq, handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", handler);
122 else
123 free_irq(irq, handler);
124
125 if ((cc = sb_setcore(sbh, SB_CC, 0))) {
126 int intmask;
127
128 intmask = readl(&cc->intmask);
129 if (enabled)
130 intmask |= CI_GPIO;
131 else
132 intmask &= ~CI_GPIO;
133 writel(intmask, &cc->intmask);
134 }
135 sb_setcoreidx(sbh, coreidx);
136 spin_unlock_irqrestore(sbh_lock, flags);
137 }
138
139 #endif /* BCMDRIVER */
140
141 #define EXTIF_ADDR 0x1f000000
142 #define EXTIF_UART (EXTIF_ADDR + 0x00800000)
143
144 #define GPIO_TYPE_NORMAL (0x0 << 24)
145 #define GPIO_TYPE_EXTIF (0x1 << 24)
146 #define GPIO_TYPE_MASK (0xf << 24)
147
148 static inline void gpio_set_extif(int gpio, int value)
149 {
150 volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (gpio & ~GPIO_TYPE_MASK);
151 if (value)
152 *addr = 0xFF;
153 else
154 *addr;
155 }
156
157 #endif /* __DIAG_GPIO_H */