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 */
137
|
This page was automatically generated by the
LXR engine.
|