drivers/input/mouse/alps.h

   1 /*
   2  * ALPS touchpad PS/2 mouse driver
   3  *
   4  * Copyright (c) 2003 Peter Osterlund <petero2@telia.com>
   5  * Copyright (c) 2005 Vojtech Pavlik <vojtech@suse.cz>
   6  *
   7  * This program is free software; you can redistribute it and/or modify it
   8  * under the terms of the GNU General Public License version 2 as published by
   9  * the Free Software Foundation.
  10  */
  11
  12 #ifndef _ALPS_H
  13 #define _ALPS_H
  14
  15 #define ALPS_PROTO_V1   0
  16 #define ALPS_PROTO_V2   1
  17 #define ALPS_PROTO_V3   2
  18 #define ALPS_PROTO_V4   3
  19
  20 struct alps_model_info {
  21         unsigned char signature[3];
  22         unsigned char command_mode_resp; /* v3/v4 only */
  23         unsigned char proto_version;
  24         unsigned char byte0, mask0;
  25         unsigned char flags;
  26 };
  27
  28 struct alps_nibble_commands {
  29         int command;
  30         unsigned char data;
  31 };
  32
  33 struct alps_data {
  34         struct input_dev *dev2;         /* Relative device */
  35         char phys[32];                  /* Phys */
  36         const struct alps_model_info *i;/* Info */
  37         const struct alps_nibble_commands *nibble_commands;
  38         int addr_command;               /* Command to set register address */
  39         int prev_fin;                   /* Finger bit from previous packet */
  40         int multi_packet;               /* Multi-packet data in progress */
  41         unsigned char multi_data[6];    /* Saved multi-packet data */
  42         u8 quirks;
  43         struct timer_list timer;
  44 };
  45
  46 #define ALPS_QUIRK_TRACKSTICK_BUTTONS   1 /* trakcstick buttons in trackstick packet */
  47
  48 #ifdef CONFIG_MOUSE_PS2_ALPS
  49 int alps_detect(struct psmouse *psmouse, bool set_properties);
  50 int alps_init(struct psmouse *psmouse);
  51 #else
  52 inline int alps_detect(struct psmouse *psmouse, bool set_properties)
  53 {
  54         return -ENOSYS;
  55 }
  56 inline int alps_init(struct psmouse *psmouse)
  57 {
  58         return -ENOSYS;
  59 }
  60 #endif /* CONFIG_MOUSE_PS2_ALPS */
  61
  62 #endif