add initial 2.6.28 support for brcm47xx target
[openwrt/svn-archive/archive.git] / package / broadcom-diag / 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 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,28)
36 static inline u32 gpio_intmask(u32 mask, u32 value)
37 {
38 return ssb_gpio_intmask(&ssb, mask, value);
39 }
40 #endif
41
42 static inline u32 gpio_intpolarity(u32 mask, u32 value)
43 {
44 return ssb_gpio_polarity(&ssb, mask, value);
45 }
46
47 static inline u32 __ssb_write32_masked(struct ssb_device *dev, u16 offset,
48 u32 mask, u32 value)
49 {
50 value &= mask;
51 value |= ssb_read32(dev, offset) & ~mask;
52 ssb_write32(dev, offset, value);
53 return value;
54 }
55
56 static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *))
57 {
58 int irq;
59
60 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,25)
61 irq = gpio_to_irq(0);
62 if (irq == -EINVAL) return;
63 #else
64 if (ssb.chipco.dev)
65 irq = ssb_mips_irq(ssb.chipco.dev) + 2;
66 else if (ssb.extif.dev)
67 irq = ssb_mips_irq(ssb.extif.dev) + 2;
68 else return;
69 #endif
70
71 if (enabled) {
72 if (request_irq(irq, handler, IRQF_SHARED | IRQF_SAMPLE_RANDOM, "gpio", handler))
73 return;
74 } else {
75 free_irq(irq, handler);
76 }
77
78 if (ssb.chipco.dev)
79 __ssb_write32_masked(ssb.chipco.dev, SSB_CHIPCO_IRQMASK, SSB_CHIPCO_IRQ_GPIO, (enabled ? SSB_CHIPCO_IRQ_GPIO : 0));
80 }
81
82 #else
83
84 #include <typedefs.h>
85 #include <osl.h>
86 #include <bcmdevs.h>
87 #include <sbutils.h>
88 #include <sbconfig.h>
89 #include <sbchipc.h>
90 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,0)
91 #include <sbmips.h>
92 #else
93 #include <hndcpu.h>
94 #endif
95
96 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)
97 #define sbh bcm947xx_sbh
98 #define sbh_lock bcm947xx_sbh_lock
99 #endif
100
101 extern void *sbh;
102 extern spinlock_t sbh_lock;
103
104 #define gpio_in() sb_gpioin(sbh)
105 #define gpio_out(mask, value) sb_gpioout(sbh, mask, ((value) & (mask)), GPIO_DRV_PRIORITY)
106 #define gpio_outen(mask, value) sb_gpioouten(sbh, mask, value, GPIO_DRV_PRIORITY)
107 #define gpio_control(mask, value) sb_gpiocontrol(sbh, mask, value, GPIO_DRV_PRIORITY)
108 #define gpio_intmask(mask, value) sb_gpiointmask(sbh, mask, value, GPIO_DRV_PRIORITY)
109 #define gpio_intpolarity(mask, value) sb_gpiointpolarity(sbh, mask, value, GPIO_DRV_PRIORITY)
110
111 static void gpio_set_irqenable(int enabled, irqreturn_t (*handler)(int, void *, struct pt_regs *))
112 {
113 unsigned int coreidx;
114 unsigned long flags;
115 chipcregs_t *cc;
116 int irq;
117
118 spin_lock_irqsave(sbh_lock, flags);
119 coreidx = sb_coreidx(sbh);
120
121 irq = sb_irq(sbh) + 2;
122 if (enabled)
123 request_irq(irq, handler, SA_SHIRQ | SA_SAMPLE_RANDOM, "gpio", handler);
124 else
125 free_irq(irq, handler);
126
127 if ((cc = sb_setcore(sbh, SB_CC, 0))) {
128 int intmask;
129
130 intmask = readl(&cc->intmask);
131 if (enabled)
132 intmask |= CI_GPIO;
133 else
134 intmask &= ~CI_GPIO;
135 writel(intmask, &cc->intmask);
136 }
137 sb_setcoreidx(sbh, coreidx);
138 spin_unlock_irqrestore(sbh_lock, flags);
139 }
140
141 #endif /* BCMDRIVER */
142
143 #define EXTIF_ADDR 0x1f000000
144 #define EXTIF_UART (EXTIF_ADDR + 0x00800000)
145
146 #define GPIO_TYPE_NORMAL (0x0 << 24)
147 #define GPIO_TYPE_EXTIF (0x1 << 24)
148 #define GPIO_TYPE_MASK (0xf << 24)
149
150 static inline void gpio_set_extif(int gpio, int value)
151 {
152 volatile u8 *addr = (volatile u8 *) KSEG1ADDR(EXTIF_UART) + (gpio & ~GPIO_TYPE_MASK);
153 if (value)
154 *addr = 0xFF;
155 else
156 *addr;
157 }
158
159 #endif /* __DIAG_GPIO_H */