include/linux/i8042.h

   1 #ifndef _LINUX_I8042_H
   2 #define _LINUX_I8042_H
   3
   4 /*
   5  * This program is free software; you can redistribute it and/or modify it
   6  * under the terms of the GNU General Public License version 2 as published by
   7  * the Free Software Foundation.
   8  */
   9
  10 #include <linux/types.h>
  11
  12 /*
  13  * Standard commands.
  14  */
  15
  16 #define I8042_CMD_CTL_RCTR      0x0120
  17 #define I8042_CMD_CTL_WCTR      0x1060
  18 #define I8042_CMD_CTL_TEST      0x01aa
  19
  20 #define I8042_CMD_KBD_DISABLE   0x00ad
  21 #define I8042_CMD_KBD_ENABLE    0x00ae
  22 #define I8042_CMD_KBD_TEST      0x01ab
  23 #define I8042_CMD_KBD_LOOP      0x11d2
  24
  25 #define I8042_CMD_AUX_DISABLE   0x00a7
  26 #define I8042_CMD_AUX_ENABLE    0x00a8
  27 #define I8042_CMD_AUX_TEST      0x01a9
  28 #define I8042_CMD_AUX_SEND      0x10d4
  29 #define I8042_CMD_AUX_LOOP      0x11d3
  30
  31 #define I8042_CMD_MUX_PFX       0x0090
  32 #define I8042_CMD_MUX_SEND      0x1090
  33
  34 struct serio;
  35
  36 #if defined(CONFIG_SERIO_I8042) || defined(CONFIG_SERIO_I8042_MODULE)
  37
  38 void i8042_lock_chip(void);
  39 void i8042_unlock_chip(void);
  40 int i8042_command(unsigned char *param, int command);
  41 bool i8042_check_port_owner(const struct serio *);
  42 int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
  43                                         struct serio *serio));
  44 int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
  45                                        struct serio *serio));
  46
  47 #else
  48
  49 void i8042_lock_chip(void)
  50 {
  51 }
  52
  53 void i8042_unlock_chip(void)
  54 {
  55 }
  56
  57 int i8042_command(unsigned char *param, int command)
  58 {
  59         return -ENODEV;
  60 }
  61
  62 bool i8042_check_port_owner(const struct serio *serio)
  63 {
  64         return false;
  65 }
  66
  67 int i8042_install_filter(bool (*filter)(unsigned char data, unsigned char str,
  68                                         struct serio *serio))
  69 {
  70         return -ENODEV;
  71 }
  72
  73 int i8042_remove_filter(bool (*filter)(unsigned char data, unsigned char str,
  74                                        struct serio *serio))
  75 {
  76         return -ENODEV;
  77 }
  78
  79 #endif
  80
  81 #endif