LXR linux-old/include/linux/pc

   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
  29extern unsigned char pckbd_read_mask;
  30extern 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
 124struct 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