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
13 #undef KBD_REPORT_ERR /* Report keyboard errors */
14 #define KBD_REPORT_UNKN /* Report unknown scan codes */
15 #define KBD_REPORT_TIMEOUTS /* Report keyboard timeouts */
16 #undef KBD_IS_FOCUS_9000 /* We have the brain-damaged FOCUS-9000 keyboard */
17 #undef INITIALIZE_MOUSE /* Define if your PS/2 mouse needs initialization. */
18
19
20
21 #define KBD_INIT_TIMEOUT 1000 /* Timeout in ms for initializing the keyboard */
22 #define KBC_TIMEOUT 250 /* Timeout in ms for sending to keyboard controller */
23 #define KBD_TIMEOUT 1000 /* Timeout in ms for keyboard command acknowledge */
24
25 /*
26 * Internal variables of the driver
27 */
28
29 extern unsigned char pckbd_read_mask;
30 extern unsigned char aux_device_present;
31
32 /*
33 * Keyboard Controller Registers on normal PCs.
34 */
35
36 #define KBD_STATUS_REG 0x64 /* Status register (R) */
37 #define KBD_CNTL_REG 0x64 /* Controller command register (W) */
38 #define KBD_DATA_REG 0x60 /* Keyboard data register (R/W) */
39
40 /*
41 * Keyboard Controller Commands
42 */
43
44 #define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */
45 #define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */
46 #define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */
47 #define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */
48 #define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */
49 #define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */
50 #define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */
51 #define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */
52 #define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */
53 #define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */
54 #define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if
55 initiated by the auxiliary device */
56 #define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */
57
58 /*
59 * Keyboard Commands
60 */
61
62 #define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */
63 #define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */
64 #define KBD_CMD_ENABLE 0xF4 /* Enable scanning */
65 #define KBD_CMD_DISABLE 0xF5 /* Disable scanning */
66 #define KBD_CMD_RESET 0xFF /* Reset */
67
68 /*
69 * Keyboard Replies
70 */
71
72 #define KBD_REPLY_POR 0xAA /* Power on reset */
73 #define KBD_REPLY_ACK 0xFA /* Command ACK */
74 #define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */
75
76 /*
77 * Status Register Bits
78 */
79
80 #define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */
81 #define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */
82 #define KBD_STAT_SELFTEST 0x04 /* Self test successful */
83 #define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */
84 #define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */
85 #define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */
86 #define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */
87 #define KBD_STAT_PERR 0x80 /* Parity error */
88
89 #define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF)
90
91 /*
92 * Controller Mode Register Bits
93 */
94
95 #define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */
96 #define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */
97 #define KBD_MODE_SYS 0x04 /* The system flag (?) */
98 #define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */
99 #define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */
100 #define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */
101 #define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */
102 #define KBD_MODE_RFU 0x80
103
104 /*
105 * Mouse Commands
106 */
107
108 #define AUX_SET_RES 0xE8 /* Set resolution */
109 #define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */
110 #define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */
111 #define AUX_GET_SCALE 0xE9 /* Get scaling factor */
112 #define AUX_SET_STREAM 0xEA /* Set stream mode */
113 #define AUX_SET_SAMPLE 0xF3 /* Set sample rate */
114 #define AUX_ENABLE_DEV 0xF4 /* Enable aux device */
115 #define AUX_DISABLE_DEV 0xF5 /* Disable aux device */
116 #define AUX_RESET 0xFF /* Reset aux device */
117 #define AUX_ACK 0xFA /* Command byte ACK. */
118
119 #define AUX_BUF_SIZE 2048 /* This might be better divisible by
120 three to make overruns stay in sync
121 but then the read function would need
122 a lock etc - ick */
123
124 struct aux_queue {
125 unsigned long head;
126 unsigned long tail;
127 wait_queue_head_t proc_list;
128 struct fasync_struct *fasync;
129 unsigned char buf[AUX_BUF_SIZE];
130 };
131
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