diff options
Diffstat (limited to 'include/pc_keyb.h')
| -rw-r--r-- | include/pc_keyb.h | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/include/pc_keyb.h b/include/pc_keyb.h new file mode 100644 index 0000000000..ab51703e1a --- /dev/null +++ b/include/pc_keyb.h @@ -0,0 +1,121 @@ +/* + * include/linux/pc_keyb.h + * + * PC Keyboard And Keyboard Controller + * + * (c) 1997 Martin Mares <mj@atrey.karlin.mff.cuni.cz> + */ + +/* + * Configuration Switches + */ +#undef KBD_REPORT_ERR /* Report keyboard errors */ +#define KBD_REPORT_UNKN /* Report unknown scan codes */ +#define KBD_REPORT_TIMEOUTS /* Report keyboard timeouts */ +#undef KBD_IS_FOCUS_9000 /* We have the brain-damaged FOCUS-9000 keyboard */ +#undef INITIALIZE_MOUSE /* Define if your PS/2 mouse needs initialization. */ + +#define KBD_INIT_TIMEOUT 1000 /* Timeout in ms for initializing the keyboard */ +#define KBC_TIMEOUT 250 /* Timeout in ms for sending to keyboard controller */ +#define KBD_TIMEOUT 1000 /* Timeout in ms for keyboard command acknowledge */ + +/* + * Internal variables of the driver + */ +extern unsigned char pckbd_read_mask; +extern unsigned char aux_device_present; + +/* + * Keyboard Controller Registers on normal PCs. + */ +#define KBD_STATUS_REG 0x64 /* Status register (R) */ +#define KBD_CNTL_REG 0x64 /* Controller command register (W) */ +#define KBD_DATA_REG 0x60 /* Keyboard data register (R/W) */ + +/* + * Keyboard Controller Commands + */ +#define KBD_CCMD_READ_MODE 0x20 /* Read mode bits */ +#define KBD_CCMD_WRITE_MODE 0x60 /* Write mode bits */ +#define KBD_CCMD_GET_VERSION 0xA1 /* Get controller version */ +#define KBD_CCMD_MOUSE_DISABLE 0xA7 /* Disable mouse interface */ +#define KBD_CCMD_MOUSE_ENABLE 0xA8 /* Enable mouse interface */ +#define KBD_CCMD_TEST_MOUSE 0xA9 /* Mouse interface test */ +#define KBD_CCMD_SELF_TEST 0xAA /* Controller self test */ +#define KBD_CCMD_KBD_TEST 0xAB /* Keyboard interface test */ +#define KBD_CCMD_KBD_DISABLE 0xAD /* Keyboard interface disable */ +#define KBD_CCMD_KBD_ENABLE 0xAE /* Keyboard interface enable */ +#define KBD_CCMD_WRITE_AUX_OBUF 0xD3 /* Write to output buffer as if + initiated by the auxiliary device */ +#define KBD_CCMD_WRITE_MOUSE 0xD4 /* Write the following byte to the mouse */ + +/* + * Keyboard Commands + */ +#define KBD_CMD_SET_LEDS 0xED /* Set keyboard leds */ +#define KBD_CMD_SET_RATE 0xF3 /* Set typematic rate */ +#define KBD_CMD_ENABLE 0xF4 /* Enable scanning */ +#define KBD_CMD_DISABLE 0xF5 /* Disable scanning */ +#define KBD_CMD_RESET 0xFF /* Reset */ + +/* + * Keyboard Replies + */ +#define KBD_REPLY_POR 0xAA /* Power on reset */ +#define KBD_REPLY_ACK 0xFA /* Command ACK */ +#define KBD_REPLY_RESEND 0xFE /* Command NACK, send the cmd again */ + +/* + * Status Register Bits + */ +#define KBD_STAT_OBF 0x01 /* Keyboard output buffer full */ +#define KBD_STAT_IBF 0x02 /* Keyboard input buffer full */ +#define KBD_STAT_SELFTEST 0x04 /* Self test successful */ +#define KBD_STAT_CMD 0x08 /* Last write was a command write (0=data) */ +#define KBD_STAT_UNLOCKED 0x10 /* Zero if keyboard locked */ +#define KBD_STAT_MOUSE_OBF 0x20 /* Mouse output buffer full */ +#define KBD_STAT_GTO 0x40 /* General receive/xmit timeout */ +#define KBD_STAT_PERR 0x80 /* Parity error */ + +#define AUX_STAT_OBF (KBD_STAT_OBF | KBD_STAT_MOUSE_OBF) + +/* + * Controller Mode Register Bits + */ +#define KBD_MODE_KBD_INT 0x01 /* Keyboard data generate IRQ1 */ +#define KBD_MODE_MOUSE_INT 0x02 /* Mouse data generate IRQ12 */ +#define KBD_MODE_SYS 0x04 /* The system flag (?) */ +#define KBD_MODE_NO_KEYLOCK 0x08 /* The keylock doesn't affect the keyboard if set */ +#define KBD_MODE_DISABLE_KBD 0x10 /* Disable keyboard interface */ +#define KBD_MODE_DISABLE_MOUSE 0x20 /* Disable mouse interface */ +#define KBD_MODE_KCC 0x40 /* Scan code conversion to PC format */ +#define KBD_MODE_RFU 0x80 + +/* + * Mouse Commands + */ +#define AUX_SET_RES 0xE8 /* Set resolution */ +#define AUX_SET_SCALE11 0xE6 /* Set 1:1 scaling */ +#define AUX_SET_SCALE21 0xE7 /* Set 2:1 scaling */ +#define AUX_GET_SCALE 0xE9 /* Get scaling factor */ +#define AUX_SET_STREAM 0xEA /* Set stream mode */ +#define AUX_SET_SAMPLE 0xF3 /* Set sample rate */ +#define AUX_ENABLE_DEV 0xF4 /* Enable aux device */ +#define AUX_DISABLE_DEV 0xF5 /* Disable aux device */ +#define AUX_RESET 0xFF /* Reset aux device */ +#define AUX_ACK 0xFA /* Command byte ACK. */ + +#define AUX_BUF_SIZE 2048 /* This might be better divisible by + three to make overruns stay in sync + but then the read function would need + a lock etc - ick */ + +#if 0 +struct aux_queue { + unsigned long head; + unsigned long tail; + wait_queue_head_t proc_list; + struct fasync_struct *fasync; + unsigned char buf[AUX_BUF_SIZE]; +}; +#endif |