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1c43771b WD |
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 | */ | |
25 | extern unsigned char pckbd_read_mask; | |
26 | extern 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 | */ | |
53677ef1 WD |
71 | #define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ |
72 | #define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ | |
1c43771b WD |
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 */ | |
53677ef1 WD |
77 | #define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ |
78 | #define KBD_STAT_PERR 0x80 /* Parity error */ | |
1c43771b WD |
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 (?) */ |
1c43771b WD |
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 */ |
1c43771b WD |
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 | |
114 | struct 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 |