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 */ 71 #define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ 72 #define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ 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 */ 77 #define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ 78 #define KBD_STAT_PERR 0x80 /* Parity error */ 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 */ 87 #define KBD_MODE_SYS 0x04 /* The system flag (?) */ 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 */ 91 #define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */ 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 122