1 | /* |
---|
2 | * include/linux/pc_keyb.h |
---|
3 | * PC Keyboard And Keyboard Controller |
---|
4 | * (c) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz> |
---|
5 | * |
---|
6 | * RTEMS port: by Rosimildo da Silva. |
---|
7 | * |
---|
8 | * This module was ported from Linux. |
---|
9 | * |
---|
10 | */ |
---|
11 | |
---|
12 | /* |
---|
13 | * Configuration Switches |
---|
14 | */ |
---|
15 | |
---|
16 | #undef KBD_REPORT_ERR /* Report keyboard errors */ |
---|
17 | #define KBD_REPORT_UNKN /* Report unknown scan codes */ |
---|
18 | #define KBD_REPORT_TIMEOUTS /* Report keyboard timeouts */ |
---|
19 | #undef KBD_IS_FOCUS_9000 /* We have the brain-damaged FOCUS-9000 keyboard */ |
---|
20 | #undef INITIALIZE_MOUSE /* Define if your PS/2 mouse needs initialization. */ |
---|
21 | |
---|
22 | #define KBD_INIT_TIMEOUT 1000 /* Timeout in ms for initializing the keyboard */ |
---|
23 | #define KBC_TIMEOUT 250 /* Timeout in ms for sending to keyboard controller */ |
---|
24 | #define KBD_TIMEOUT 1000 /* Timeout in ms for keyboard command acknowledge */ |
---|
25 | |
---|
26 | /* |
---|
27 | * Internal variables of the driver |
---|
28 | */ |
---|
29 | |
---|
30 | extern unsigned char pckbd_read_mask; |
---|
31 | extern unsigned char aux_device_present; |
---|
32 | |
---|
33 | /* |
---|
34 | * Keyboard Controller Registers on normal PCs. |
---|
35 | */ |
---|
36 | |
---|
37 | #define KBD_STATUS_REG 0x64 /* Status register (R) */ |
---|
38 | #define KBD_CNTL_REG 0x64 /* Controller command register (W) */ |
---|
39 | #define KBD_DATA_REG 0x60 /* Keyboard data register (R/W) */ |
---|
40 | |
---|
41 | /* |
---|
42 | * Keyboard Controller Commands |
---|
43 | */ |
---|
44 | |
---|
45 | #define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */ |
---|
46 | #define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */ |
---|
47 | #define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */ |
---|
48 | #define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */ |
---|
49 | #define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */ |
---|
50 | #define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */ |
---|
51 | #define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */ |
---|
52 | #define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */ |
---|
53 | #define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */ |
---|
54 | #define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */ |
---|
55 | #define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if |
---|
56 | initiated by the auxiliary device */ |
---|
57 | #define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */ |
---|
58 | |
---|
59 | /* |
---|
60 | * Keyboard Commands |
---|
61 | */ |
---|
62 | |
---|
63 | #define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ |
---|
64 | #define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ |
---|
65 | #define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ |
---|
66 | #define KBD_CMD_DISABLE 0xF5 /* Disable scanning */ |
---|
67 | #define KBD_CMD_RESET 0xFF /* Reset */ |
---|
68 | |
---|
69 | /* |
---|
70 | * Keyboard Replies |
---|
71 | */ |
---|
72 | |
---|
73 | #define KBD_REPLY_POR 0xAA /* Power on reset */ |
---|
74 | #define KBD_REPLY_ACK 0xFA /* Command ACK */ |
---|
75 | #define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ |
---|
76 | |
---|
77 | /* |
---|
78 | * Status Register Bits |
---|
79 | */ |
---|
80 | |
---|
81 | #define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ |
---|
82 | #define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ |
---|
83 | #define KBD_STAT_SELFTEST 0x04 /* Self test successful */ |
---|
84 | #define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */ |
---|
85 | #define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */ |
---|
86 | #define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */ |
---|
87 | #define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ |
---|
88 | #define KBD_STAT_PERR 0x80 /* Parity error */ |
---|
89 | |
---|
90 | #define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF) |
---|
91 | |
---|
92 | /* |
---|
93 | * Controller Mode Register Bits |
---|
94 | */ |
---|
95 | |
---|
96 | #define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */ |
---|
97 | #define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */ |
---|
98 | #define KBD_MODE_SYS 0x04 /* The system flag (?) */ |
---|
99 | #define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */ |
---|
100 | #define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */ |
---|
101 | #define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */ |
---|
102 | #define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */ |
---|
103 | #define KBD_MODE_RFU 0x80 |
---|
104 | |
---|
105 | /* |
---|
106 | * Mouse Commands |
---|
107 | */ |
---|
108 | |
---|
109 | #define AUX_SET_RES 0xE8 /* Set resolution */ |
---|
110 | #define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ |
---|
111 | #define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ |
---|
112 | #define AUX_GET_SCALE 0xE9 /* Get scaling factor */ |
---|
113 | #define AUX_SET_STREAM 0xEA /* Set stream mode */ |
---|
114 | #define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ |
---|
115 | #define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ |
---|
116 | #define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ |
---|
117 | #define AUX_RESET 0xFF /* Reset aux device */ |
---|
118 | #define AUX_ACK 0xFA /* Command byte ACK. */ |
---|
119 | |
---|
120 | #define AUX_BUF_SIZE 512 /* This might be better divisible by |
---|
121 | three to make overruns stay in sync |
---|
122 | but then the read function would need |
---|
123 | a lock etc - ick */ |
---|
124 | |
---|
125 | struct aux_queue { |
---|
126 | unsigned long head; |
---|
127 | unsigned long tail; |
---|
128 | struct wait_queue *proc_list; |
---|
129 | struct fasync_struct *fasync; |
---|
130 | unsigned char buf[AUX_BUF_SIZE]; |
---|
131 | }; |
---|
132 | |
---|
133 | /* How to access the keyboard macros on this platform. */ |
---|
134 | #define kbd_read_input() inb(KBD_DATA_REG) |
---|
135 | #define kbd_read_status() inb(KBD_STATUS_REG) |
---|
136 | #define kbd_write_output(val) outb(val, KBD_DATA_REG) |
---|
137 | #define kbd_write_command(val) outb(val, KBD_CNTL_REG) |
---|
138 | |
---|
139 | /* |
---|
140 | * Machine specific bits for the PS/2 driver |
---|
141 | */ |
---|
142 | |
---|
143 | #define AUX_IRQ 12 |
---|