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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 494 | giacomo | 1 | #ifndef _I8042_PPCIO_H |
| 2 | #define _I8042_PPCIO_H |
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| 3 | |||
| 4 | /* |
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| 5 | * This program is free software; you can redistribute it and/or modify it |
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| 6 | * under the terms of the GNU General Public License version 2 as published by |
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| 7 | * the Free Software Foundation. |
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| 8 | */ |
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| 9 | |||
| 10 | #if defined(CONFIG_WALNUT) |
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| 11 | |||
| 12 | #define I8042_KBD_IRQ 25 |
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| 13 | #define I8042_AUX_IRQ 26 |
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| 14 | |||
| 15 | #define I8042_KBD_PHYS_DESC "walnutps2/serio0" |
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| 16 | #define I8042_AUX_PHYS_DESC "walnutps2/serio1" |
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| 17 | #define I8042_MUX_PHYS_DESC "walnutps2/serio%d" |
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| 18 | |||
| 19 | extern void *kb_cs; |
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| 20 | extern void *kb_data; |
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| 21 | |||
| 22 | #define I8042_COMMAND_REG (*(int *)kb_cs) |
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| 23 | #define I8042_DATA_REG (*(int *)kb_data) |
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| 24 | |||
| 25 | static inline int i8042_read_data(void) |
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| 26 | { |
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| 27 | return readb(kb_data); |
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| 28 | } |
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| 29 | |||
| 30 | static inline int i8042_read_status(void) |
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| 31 | { |
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| 32 | return readb(kb_cs); |
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| 33 | } |
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| 34 | |||
| 35 | static inline void i8042_write_data(int val) |
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| 36 | { |
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| 37 | writeb(val, kb_data); |
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| 38 | } |
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| 39 | |||
| 40 | static inline void i8042_write_command(int val) |
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| 41 | { |
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| 42 | writeb(val, kb_cs); |
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| 43 | } |
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| 44 | |||
| 45 | static inline int i8042_platform_init(void) |
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| 46 | { |
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| 47 | i8042_reset = 1; |
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| 48 | return 0; |
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| 49 | } |
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| 50 | |||
| 51 | static inline void i8042_platform_exit(void) |
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| 52 | { |
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| 53 | } |
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| 54 | |||
| 55 | #elif defined(CONFIG_SPRUCE) |
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| 56 | |||
| 57 | #define I8042_KBD_IRQ 22 |
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| 58 | #define I8042_AUX_IRQ 21 |
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| 59 | |||
| 60 | #define I8042_KBD_PHYS_DESC "spruceps2/serio0" |
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| 61 | #define I8042_AUX_PHYS_DESC "spruceps2/serio1" |
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| 62 | #define I8042_MUX_PHYS_DESC "spruceps2/serio%d" |
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| 63 | |||
| 64 | #define I8042_COMMAND_REG 0xff810000 |
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| 65 | #define I8042_DATA_REG 0xff810001 |
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| 66 | |||
| 67 | static inline int i8042_read_data(void) |
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| 68 | { |
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| 69 | unsigned long kbd_data; |
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| 70 | |||
| 71 | __raw_writel(0x00000088, 0xff500008); |
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| 72 | eieio(); |
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| 73 | |||
| 74 | __raw_writel(0x03000000, 0xff50000c); |
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| 75 | eieio(); |
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| 76 | |||
| 77 | asm volatile("lis 7,0xff88 \n\ |
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| 78 | lswi 6,7,0x8 \n\ |
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| 79 | mr %0,6" |
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| 80 | : "=r" (kbd_data) :: "6", "7"); |
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| 81 | |||
| 82 | __raw_writel(0x00000000, 0xff50000c); |
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| 83 | eieio(); |
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| 84 | |||
| 85 | return (unsigned char)(kbd_data >> 24); |
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| 86 | } |
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| 87 | |||
| 88 | static inline int i8042_read_status(void) |
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| 89 | { |
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| 90 | unsigned long kbd_status; |
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| 91 | |||
| 92 | __raw_writel(0x00000088, 0xff500008); |
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| 93 | eieio(); |
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| 94 | |||
| 95 | __raw_writel(0x03000000, 0xff50000c); |
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| 96 | eieio(); |
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| 97 | |||
| 98 | asm volatile("lis 7,0xff88 \n\ |
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| 99 | ori 7,7,0x8 \n\ |
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| 100 | lswi 6,7,0x8 \n\ |
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| 101 | mr %0,6" |
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| 102 | : "=r" (kbd_status) :: "6", "7"); |
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| 103 | |||
| 104 | __raw_writel(0x00000000, 0xff50000c); |
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| 105 | eieio(); |
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| 106 | |||
| 107 | return (unsigned char)(kbd_status >> 24); |
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| 108 | } |
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| 109 | |||
| 110 | static inline void i8042_write_data(int val) |
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| 111 | { |
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| 112 | *((unsigned char *)0xff810000) = (char)val; |
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| 113 | } |
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| 114 | |||
| 115 | static inline void i8042_write_command(int val) |
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| 116 | { |
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| 117 | *((unsigned char *)0xff810001) = (char)val; |
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| 118 | } |
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| 119 | |||
| 120 | static inline int i8042_platform_init(void) |
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| 121 | { |
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| 122 | i8042_reset = 1; |
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| 123 | return 0; |
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| 124 | } |
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| 125 | |||
| 126 | static inline void i8042_platform_exit(void) |
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| 127 | { |
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| 128 | } |
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| 129 | |||
| 130 | #else |
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| 131 | |||
| 132 | #include "i8042-io.h" |
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| 133 | |||
| 134 | #endif |
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| 135 | |||
| 136 | #endif /* _I8042_PPCIO_H */ |