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[people/ms/u-boot.git] / include / pc_keyb.h
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1/*
2 * include/linux/pc_keyb.h
3 *
4 * PC Keyboard And Keyboard Controller
5 *
6 * (c) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz>
7 */
8
9/*
10 * Configuration Switches
11 */
12#undef KBD_REPORT_ERR /* Report keyboard errors */
13#define KBD_REPORT_UNKN /* Report unknown scan codes */
14#define KBD_REPORT_TIMEOUTS /* Report keyboard timeouts */
15#undef KBD_IS_FOCUS_9000 /* We have the brain-damaged FOCUS-9000 keyboard */
16#undef INITIALIZE_MOUSE /* Define if your PS/2 mouse needs initialization. */
17
18#define KBD_INIT_TIMEOUT 1000 /* Timeout in ms for initializing the keyboard */
19#define KBC_TIMEOUT 250 /* Timeout in ms for sending to keyboard controller */
20#define KBD_TIMEOUT 1000 /* Timeout in ms for keyboard command acknowledge */
21
22/*
23 * Internal variables of the driver
24 */
25extern unsigned char pckbd_read_mask;
26extern unsigned char aux_device_present;
27
28/*
29 * Keyboard Controller Registers on normal PCs.
30 */
31#define KBD_STATUS_REG 0x64 /* Status register (R) */
32#define KBD_CNTL_REG 0x64 /* Controller command register (W) */
33#define KBD_DATA_REG 0x60 /* Keyboard data register (R/W) */
34
35/*
36 * Keyboard Controller Commands
37 */
38#define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */
39#define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */
40#define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */
41#define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */
42#define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */
43#define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */
44#define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */
45#define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */
46#define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */
47#define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */
48#define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if
49 initiated by the auxiliary device */
50#define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */
51
52/*
53 * Keyboard Commands
54 */
55#define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */
56#define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */
57#define KBD_CMD_ENABLE 0xF4 /* Enable scanning */
58#define KBD_CMD_DISABLE 0xF5 /* Disable scanning */
59#define KBD_CMD_RESET 0xFF /* Reset */
60
61/*
62 * Keyboard Replies
63 */
64#define KBD_REPLY_POR 0xAA /* Power on reset */
65#define KBD_REPLY_ACK 0xFA /* Command ACK */
66#define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */
67
68/*
69 * Status Register Bits
70 */
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71#define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */
72#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */
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73#define KBD_STAT_SELFTEST 0x04 /* Self test successful */
74#define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */
75#define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */
76#define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */
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77#define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */
78#define KBD_STAT_PERR 0x80 /* Parity error */
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79
80#define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF)
81
82/*
83 * Controller Mode Register Bits
84 */
85#define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */
86#define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */
53677ef1 87#define KBD_MODE_SYS 0x04 /* The system flag (?) */
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88#define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */
89#define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */
90#define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */
53677ef1 91#define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */
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92#define KBD_MODE_RFU 0x80
93
94/*
95 * Mouse Commands
96 */
97#define AUX_SET_RES 0xE8 /* Set resolution */
98#define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */
99#define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */
100#define AUX_GET_SCALE 0xE9 /* Get scaling factor */
101#define AUX_SET_STREAM 0xEA /* Set stream mode */
102#define AUX_SET_SAMPLE 0xF3 /* Set sample rate */
103#define AUX_ENABLE_DEV 0xF4 /* Enable aux device */
104#define AUX_DISABLE_DEV 0xF5 /* Disable aux device */
105#define AUX_RESET 0xFF /* Reset aux device */
106#define AUX_ACK 0xFA /* Command byte ACK. */
107
108#define AUX_BUF_SIZE 2048 /* This might be better divisible by
109 three to make overruns stay in sync
110 but then the read function would need
111 a lock etc - ick */
112
113#if 0
114struct aux_queue {
115 unsigned long head;
116 unsigned long tail;
117 wait_queue_head_t proc_list;
118 struct fasync_struct *fasync;
119 unsigned char buf[AUX_BUF_SIZE];
120};
121#endif