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1da177e4 LT |
1 | #ifndef _I8042_PPCIO_H |
2 | #define _I8042_PPCIO_H | |
3 | ||
4 | /* | |
5 | * This program is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License version 2 as published by | |
7 | * the Free Software Foundation. | |
8 | */ | |
9 | ||
10 | #if defined(CONFIG_WALNUT) | |
11 | ||
12 | #define I8042_KBD_IRQ 25 | |
13 | #define I8042_AUX_IRQ 26 | |
14 | ||
15 | #define I8042_KBD_PHYS_DESC "walnutps2/serio0" | |
16 | #define I8042_AUX_PHYS_DESC "walnutps2/serio1" | |
17 | #define I8042_MUX_PHYS_DESC "walnutps2/serio%d" | |
18 | ||
19 | extern void *kb_cs; | |
20 | extern void *kb_data; | |
21 | ||
22 | #define I8042_COMMAND_REG (*(int *)kb_cs) | |
23 | #define I8042_DATA_REG (*(int *)kb_data) | |
24 | ||
25 | static inline int i8042_read_data(void) | |
26 | { | |
27 | return readb(kb_data); | |
28 | } | |
29 | ||
30 | static inline int i8042_read_status(void) | |
31 | { | |
32 | return readb(kb_cs); | |
33 | } | |
34 | ||
35 | static inline void i8042_write_data(int val) | |
36 | { | |
37 | writeb(val, kb_data); | |
38 | } | |
39 | ||
40 | static inline void i8042_write_command(int val) | |
41 | { | |
42 | writeb(val, kb_cs); | |
43 | } | |
44 | ||
45 | static inline int i8042_platform_init(void) | |
46 | { | |
47 | i8042_reset = 1; | |
48 | return 0; | |
49 | } | |
50 | ||
51 | static inline void i8042_platform_exit(void) | |
52 | { | |
53 | } | |
54 | ||
55 | #elif defined(CONFIG_SPRUCE) | |
56 | ||
57 | #define I8042_KBD_IRQ 22 | |
58 | #define I8042_AUX_IRQ 21 | |
59 | ||
60 | #define I8042_KBD_PHYS_DESC "spruceps2/serio0" | |
61 | #define I8042_AUX_PHYS_DESC "spruceps2/serio1" | |
62 | #define I8042_MUX_PHYS_DESC "spruceps2/serio%d" | |
63 | ||
64 | #define I8042_COMMAND_REG 0xff810000 | |
65 | #define I8042_DATA_REG 0xff810001 | |
66 | ||
67 | static inline int i8042_read_data(void) | |
68 | { | |
69 | unsigned long kbd_data; | |
70 | ||
71 | __raw_writel(0x00000088, 0xff500008); | |
72 | eieio(); | |
73 | ||
74 | __raw_writel(0x03000000, 0xff50000c); | |
75 | eieio(); | |
76 | ||
77 | asm volatile("lis 7,0xff88 \n\ | |
78 | lswi 6,7,0x8 \n\ | |
79 | mr %0,6" | |
80 | : "=r" (kbd_data) :: "6", "7"); | |
81 | ||
82 | __raw_writel(0x00000000, 0xff50000c); | |
83 | eieio(); | |
84 | ||
85 | return (unsigned char)(kbd_data >> 24); | |
86 | } | |
87 | ||
88 | static inline int i8042_read_status(void) | |
89 | { | |
90 | unsigned long kbd_status; | |
91 | ||
92 | __raw_writel(0x00000088, 0xff500008); | |
93 | eieio(); | |
94 | ||
95 | __raw_writel(0x03000000, 0xff50000c); | |
96 | eieio(); | |
97 | ||
98 | asm volatile("lis 7,0xff88 \n\ | |
99 | ori 7,7,0x8 \n\ | |
100 | lswi 6,7,0x8 \n\ | |
101 | mr %0,6" | |
102 | : "=r" (kbd_status) :: "6", "7"); | |
103 | ||
104 | __raw_writel(0x00000000, 0xff50000c); | |
105 | eieio(); | |
106 | ||
107 | return (unsigned char)(kbd_status >> 24); | |
108 | } | |
109 | ||
110 | static inline void i8042_write_data(int val) | |
111 | { | |
112 | *((unsigned char *)0xff810000) = (char)val; | |
113 | } | |
114 | ||
115 | static inline void i8042_write_command(int val) | |
116 | { | |
117 | *((unsigned char *)0xff810001) = (char)val; | |
118 | } | |
119 | ||
120 | static inline int i8042_platform_init(void) | |
121 | { | |
122 | i8042_reset = 1; | |
123 | return 0; | |
124 | } | |
125 | ||
126 | static inline void i8042_platform_exit(void) | |
127 | { | |
128 | } | |
129 | ||
130 | #else | |
131 | ||
132 | #include "i8042-io.h" | |
133 | ||
134 | #endif | |
135 | ||
136 | #endif /* _I8042_PPCIO_H */ |