include/linux/busmouse.h

   1 #ifndef _LINUX_BUSMOUSE_H
   2 #define _LINUX_BUSMOUSE_H
   3
   4 /*
   5  * linux/include/linux/busmouse.h: header file for Logitech Bus Mouse driver
   6  * by James Banks
   7  *
   8  * based on information gleamed from various mouse drivers on the net
   9  *
  10  * Heavily modified by David giller (rafetmad@oxy.edu)
  11  *
  12  * Minor modifications for Linux 0.96c-pl1 by Nathan Laredo
  13  * gt7080a@prism.gatech.edu (13JUL92)
  14  *
  15  * Microsoft BusMouse support by Teemu Rantanen (tvr@cs.hut.fi) (02AUG92)
  16  *
  17  * Microsoft Bus Mouse support modified by Derrick Cole (cole@concert.net)
  18  *    8/28/92
  19  *
  20  * Microsoft Bus Mouse support folded into 0.97pl4 code
  21  *    by Peter Cervasio (pete%q106fm.uucp@wupost.wustl.edu) (08SEP92)
  22  * Changes:  Logitech and Microsoft support in the same kernel.
  23  *           Defined new constants in busmouse.h for MS mice.
  24  *           Added int mse_busmouse_type to distinguish busmouse types
  25  *           Added a couple of new functions to handle differences in using
  26  *             MS vs. Logitech (where the int variable wasn't appropriate).
  27  *
  28  */
  29
  30 #define MOUSE_IRQ               5
  31 #define LOGITECH_BUSMOUSE       0   /* Minor device # for Logitech  */
  32 #define MICROSOFT_BUSMOUSE      2   /* Minor device # for Microsoft */
  33
  34 /*--------- LOGITECH BUSMOUSE ITEMS -------------*/
  35
  36 #define LOGIBM_BASE             0x23c
  37 #define MSE_DATA_PORT           0x23c
  38 #define MSE_SIGNATURE_PORT      0x23d
  39 #define MSE_CONTROL_PORT        0x23e
  40 #define MSE_INTERRUPT_PORT      0x23e
  41 #define MSE_CONFIG_PORT         0x23f
  42 #define LOGIBM_EXTENT           0x4
  43
  44 #define MSE_ENABLE_INTERRUPTS   0x00
  45 #define MSE_DISABLE_INTERRUPTS  0x10
  46
  47 #define MSE_READ_X_LOW          0x80
  48 #define MSE_READ_X_HIGH         0xa0
  49 #define MSE_READ_Y_LOW          0xc0
  50 #define MSE_READ_Y_HIGH         0xe0
  51
  52 /* Magic number used to check if the mouse exists */
  53 #define MSE_CONFIG_BYTE         0x91
  54 #define MSE_DEFAULT_MODE        0x90
  55 #define MSE_SIGNATURE_BYTE      0xa5
  56
  57 /* useful Logitech Mouse macros */
  58
  59 #define MSE_INT_OFF()   outb(MSE_DISABLE_INTERRUPTS, MSE_CONTROL_PORT)
  60 #define MSE_INT_ON()    outb(MSE_ENABLE_INTERRUPTS, MSE_CONTROL_PORT)
  61
  62 /*--------- MICROSOFT BUSMOUSE ITEMS -------------*/
  63
  64 #define MSBM_BASE                       0x23d
  65 #define MS_MSE_DATA_PORT                0x23d
  66 #define MS_MSE_SIGNATURE_PORT           0x23e
  67 #define MS_MSE_CONTROL_PORT             0x23c
  68 #define MS_MSE_CONFIG_PORT              0x23f
  69 #define MSBM_EXTENT                     0x3
  70
  71 #define MS_MSE_ENABLE_INTERRUPTS        0x11
  72 #define MS_MSE_DISABLE_INTERRUPTS       0x10
  73
  74 #define MS_MSE_READ_BUTTONS             0x00
  75 #define MS_MSE_READ_X                   0x01
  76 #define MS_MSE_READ_Y                   0x02
  77
  78 #define MS_MSE_START                    0x80
  79 #define MS_MSE_COMMAND_MODE             0x07
  80
  81 /* useful microsoft busmouse macros */
  82
  83 #define MS_MSE_INT_OFF() {outb(MS_MSE_COMMAND_MODE, MS_MSE_CONTROL_PORT); \
  84                             outb(MS_MSE_DISABLE_INTERRUPTS, MS_MSE_DATA_PORT);}
  85 #define MS_MSE_INT_ON()  {outb(MS_MSE_COMMAND_MODE, MS_MSE_CONTROL_PORT); \
  86                             outb(MS_MSE_ENABLE_INTERRUPTS, MS_MSE_DATA_PORT);}
  87
  88
  89 struct mouse_status {
  90         unsigned char   buttons;
  91         unsigned char   latch_buttons;
  92         int             dx;
  93         int             dy;
  94         int             present;
  95         int             ready;
  96         int             active;
  97         struct wait_queue *wait;
  98         struct fasync_struct *fasyncptr;
  99 };
 100
 101 /* Function Prototypes */
 102
 103 #endif
 104