root/include/linux/busmouse.h

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INCLUDED FROM


   1 #ifndef _LINUX_BUSMOUSE_H
   2 #define _LINUX_BUSMOUSE_H
   3 
   4 /*
   5  * linux/include/linux/mouse.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 MSE_DATA_PORT           0x23c
  37 #define MSE_SIGNATURE_PORT      0x23d
  38 #define MSE_CONTROL_PORT        0x23e
  39 #define MSE_INTERRUPT_PORT      0x23e
  40 #define MSE_CONFIG_PORT         0x23f
  41 
  42 #define MSE_ENABLE_INTERRUPTS   0x00
  43 #define MSE_DISABLE_INTERRUPTS  0x10
  44 
  45 #define MSE_READ_X_LOW          0x80
  46 #define MSE_READ_X_HIGH         0xa0
  47 #define MSE_READ_Y_LOW          0xc0
  48 #define MSE_READ_Y_HIGH         0xe0
  49 
  50 /* Magic number used to check if the mouse exists */
  51 #define MSE_CONFIG_BYTE         0x91
  52 #define MSE_DEFAULT_MODE        0x90
  53 #define MSE_SIGNATURE_BYTE      0xa5
  54 
  55 /* useful Logitech Mouse macros */
  56 
  57 #define MSE_INT_OFF()   outb(MSE_DISABLE_INTERRUPTS, MSE_CONTROL_PORT)
  58 #define MSE_INT_ON()    outb(MSE_ENABLE_INTERRUPTS, MSE_CONTROL_PORT)
  59 
  60 /*--------- MICROSOFT BUSMOUSE ITEMS -------------*/
  61 
  62 #define MS_MSE_DATA_PORT                0x23d
  63 #define MS_MSE_SIGNATURE_PORT           0x23e
  64 #define MS_MSE_CONTROL_PORT             0x23c
  65 #define MS_MSE_CONFIG_PORT              0x23f
  66 
  67 #define MS_MSE_ENABLE_INTERRUPTS        0x11
  68 #define MS_MSE_DISABLE_INTERRUPTS       0x10
  69 
  70 #define MS_MSE_READ_BUTTONS             0x00
  71 #define MS_MSE_READ_X                   0x01
  72 #define MS_MSE_READ_Y                   0x02
  73 
  74 #define MS_MSE_START                    0x80
  75 #define MS_MSE_COMMAND_MODE             0x07
  76 
  77 /* useful microsoft busmouse macros */
  78 
  79 #define MS_MSE_INT_OFF() {outb(MS_MSE_COMMAND_MODE, MS_MSE_CONTROL_PORT); \
  80                             outb(MS_MSE_DISABLE_INTERRUPTS, MS_MSE_DATA_PORT);}
  81 #define MS_MSE_INT_ON()  {outb(MS_MSE_COMMAND_MODE, MS_MSE_CONTROL_PORT); \
  82                             outb(MS_MSE_ENABLE_INTERRUPTS, MS_MSE_DATA_PORT);}
  83 
  84  
  85 struct mouse_status {
  86         char            buttons;
  87         char            latch_buttons;
  88         int             dx;
  89         int             dy;     
  90         int             present;
  91         int             ready;
  92         int             active;
  93         struct wait_queue *wait;
  94 };
  95 
  96 /* Function Prototypes */
  97 extern long mouse_init(long);
  98 
  99 #endif
 100 

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