payloads/libpayload/drivers/i8042/i8042.h

   1 /*
   2  *
   3  * Copyright 2018 Google LLC
   4  *
   5  * Redistribution and use in source and binary forms, with or without
   6  * modification, are permitted provided that the following conditions
   7  * are met:
   8  * 1. Redistributions of source code must retain the above copyright
   9  *    notice, this list of conditions and the following disclaimer.
  10  * 2. Redistributions in binary form must reproduce the above copyright
  11  *    notice, this list of conditions and the following disclaimer in the
  12  *    documentation and/or other materials provided with the distribution.
  13  * 3. The name of the author may not be used to endorse or promote products
  14  *    derived from this software without specific prior written permission.
  15  *
  16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  26  * SUCH DAMAGE.
  27  */
  28
  29 #ifndef __DRIVERS_I8042_I8042_H__
  30 #define __DRIVERS_I8042_I8042_H__
  31
  32 /* Port 0x64 commands */
  33 #define I8042_CMD_RD_CMD_BYTE           0x20
  34 #define I8042_CMD_WR_CMD_BYTE           0x60
  35 #define   I8042_CMD_BYTE_XLATE          (1 << 6)
  36 #define I8042_CMD_DIS_AUX               0xa7
  37 #define I8042_CMD_EN_AUX                0xa8
  38 #define I8042_CMD_AUX_TEST              0xa9
  39 #define I8042_CMD_SELF_TEST             0xaa
  40 #define   I8042_SELF_TEST_RSP           0x55
  41 #define I8042_CMD_KB_TEST               0xab
  42 #define I8042_CMD_DIAG_DUMP             0xac
  43 #define I8042_CMD_DIS_KB                0xad
  44 #define I8042_CMD_EN_KB                 0xae
  45 #define I8042_CMD_RD_INPUT_PORT         0xc0
  46 #define I8042_CMD_RD_OUTPUT_PORT        0xd0
  47 #define I8042_CMD_WR_OUTPUT_PORT        0xd1
  48 #define I8042_CMD_RD_TEST_INPUTS        0xe0
  49
  50 /* Port 0x60 keyboard commands */
  51 #define I8042_KBCMD_SET_MODE_IND        0xed
  52 #define   I8042_MODE_CAPS_LOCK_ON       (1 << 2)
  53 #define   I8042_MODE_CAPS_LOCK_OFF      (0 << 2)
  54 #define   I8042_MODE_NUM_LOCK_ON        (1 << 1)
  55 #define   I8042_MODE_NUM_LOCK_OFF       (0 << 1)
  56 #define   I8042_MODE_SCROLL_LOCK_ON     (1 << 0)
  57 #define   I8042_MODE_SCROLL_LOCK_OFF    (0 << 0)
  58 #define I8042_KBCMD_ECHO                0xee
  59 #define I8042_KBCMD_SET_SCANCODE        0xf0
  60 #define I8042_KBCMD_SET_TYPEMATIC       0xf3
  61 #define I8042_KBCMD_EN                  0xf4
  62 #define I8042_KBCMD_DEFAULT_DIS         0xf5
  63 #define I8042_KBCMD_SET_DEFAULT         0xf6
  64 #define I8042_KBCMD_RESEND              0xfe
  65 #define I8042_KBCMD_RESET               0xff
  66
  67 #endif /* __DRIVERS_I8042_I8042_H__ */