include/arch/x86/input/ps2.h

   1 #ifndef X86_INPUT_PS2_H
   2 #define X86_INPUT_PS2_H
   3
   4 /* port constants */
   5 #define PS2_DATA_PORT 0x60
   6 #define PS2_CMD_STS_PORT 0x64
   7
   8 /* command constants */
   9 #define PS2_CMD_PORT_2_DISABLE 0xA7
  10 #define PS2_CMD_PORT_1_DISABLE 0xAD
  11 #define PS2_CMD_PORT_2_ENABLE 0xA8
  12 #define PS2_CMD_PORT_1_ENABLE 0xAE
  13 #define PS2_CMD_READ_CCB 0x20
  14 #define PS2_CMD_WRITE_CCB 0x60
  15 #define PS2_CMD_CONTROLLER_TEST 0xAA
  16 #define PS2_CMD_PORT_1_TEST 0xAB
  17 #define PS2_CMD_PORT_2_TEST 0xA9
  18 #define PS2_CMD_PORT_2_WRITE 0xD4
  19
  20 #define PS2_DEV_RESET 0xFF
  21
  22 #define PS2_CONTROLLER_GOOD 0x55
  23 #define PS2_CONTROLLER_BAD 0xFC
  24
  25 enum PS2_CCB {
  26         PORT_1_IRQ = 0,
  27         PORT_2_IRQ,
  28         SYSTEM_FLAG,
  29         ZERO,
  30         PORT_1_CLK,
  31         PORT_2_CLK,
  32         PORT_1_TRANSL,
  33         ZERO2
  34 };
  35
  36 enum PS2_STATUS {
  37         OUT_STATUS = 0,
  38         IN_STATUS,
  39         STS_SYSTEM_FLAG,
  40         CMD_DATA,
  41         UNKNOWN,
  42         UNKNOWN2,
  43         TIMEOUT_ERROR,
  44         PARITY_ERROR
  45 };
  46
  47 enum PS2_SPECIAL {
  48         SELF_TEST_GOOD = 0xAA,
  49         SELF_TEST_BAD = 0xFC,
  50         SELF_TEST_BAD_2 = 0xFD,
  51         ACK = 0xFA,
  52         RESEND = 0xFE
  53 };
  54
  55 static const char scancodes[] = {
  56         /* letters */
  57         [0x15] = 'q',
  58         [0x1d] = 'w',
  59         [0x24] = 'e',
  60         [0x2d] = 'r',
  61         [0x2c] = 't',
  62         [0x35] = 'y',
  63         [0x3c] = 'u',
  64         [0x43] = 'i',
  65         [0x44] = 'o',
  66         [0x4d] = 'p',
  67         [0x1c] = 'a',
  68         [0x1b] = 's',
  69         [0x23] = 'd',
  70         [0x2b] = 'f',
  71         [0x34] = 'g',
  72         [0x33] = 'h',
  73         [0x3b] = 'j',
  74         [0x42] = 'k',
  75         [0x4b] = 'l',
  76         [0x1a] = 'z',
  77         [0x22] = 'x',
  78         [0x21] = 'c',
  79         [0x2a] = 'v',
  80         [0x32] = 'b',
  81         [0x31] = 'n',
  82         [0x3a] = 'm',
  83
  84         /* special */
  85         [0x29] = ' '
  86 };
  87
  88 extern int ps2_initialize();
  89 extern void ps2_input_wait();
  90 extern void ps2_output_wait();
  91
  92 #endif