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#ifndef _LINUX_BUSMOUSE_H

#define _LINUX_BUSMOUSE_H

/*

 * linux/include/linux/busmouse.h: header file for Logitech Bus Mouse driver

 * by James Banks

 *

 * based on information gleamed from various mouse drivers on the net

 *

 * Heavily modified by David giller (rafetmad@oxy.edu)

 *

 * Minor modifications for Linux 0.96c-pl1 by Nathan Laredo

 * gt7080a@prism.gatech.edu (13JUL92)

 *

 * Microsoft BusMouse support by Teemu Rantanen (tvr@cs.hut.fi) (02AUG92)

 *

 * Microsoft Bus Mouse support modified by Derrick Cole (cole@concert.net)

 *    8/28/92

 *

 * Microsoft Bus Mouse support folded into 0.97pl4 code

 *    by Peter Cervasio (pete%q106fm.uucp@wupost.wustl.edu) (08SEP92)

 * Changes:  Logitech and Microsoft support in the same kernel.

 *           Defined new constants in busmouse.h for MS mice.

 *           Added int mse_busmouse_type to distinguish busmouse types

 *           Added a couple of new functions to handle differences in using

 *             MS vs. Logitech (where the int variable wasn't appropriate).

 *

 */

#define MOUSE_IRQ               5

#define LOGITECH_BUSMOUSE       0   /* Minor device # for Logitech  */

#define MICROSOFT_BUSMOUSE      2   /* Minor device # for Microsoft */

/*--------- LOGITECH BUSMOUSE ITEMS -------------*/

#define LOGIBM_BASE             0x23c

#define MSE_DATA_PORT           0x23c

#define MSE_SIGNATURE_PORT      0x23d

#define MSE_CONTROL_PORT        0x23e

#define MSE_INTERRUPT_PORT      0x23e

#define MSE_CONFIG_PORT         0x23f

#define LOGIBM_EXTENT           0x4

#define MSE_ENABLE_INTERRUPTS   0x00

#define MSE_DISABLE_INTERRUPTS  0x10

#define MSE_READ_X_LOW          0x80

#define MSE_READ_X_HIGH         0xa0

#define MSE_READ_Y_LOW          0xc0

#define MSE_READ_Y_HIGH         0xe0

/* Magic number used to check if the mouse exists */

#define MSE_CONFIG_BYTE         0x91

#define MSE_DEFAULT_MODE        0x90

#define MSE_SIGNATURE_BYTE      0xa5

/* useful Logitech Mouse macros */

#define MSE_INT_OFF()   outb(MSE_DISABLE_INTERRUPTS, MSE_CONTROL_PORT)

#define MSE_INT_ON()    outb(MSE_ENABLE_INTERRUPTS, MSE_CONTROL_PORT)

/*--------- MICROSOFT BUSMOUSE ITEMS -------------*/

#define MSBM_BASE                       0x23d

#define MS_MSE_DATA_PORT                0x23d

#define MS_MSE_SIGNATURE_PORT           0x23e

#define MS_MSE_CONTROL_PORT             0x23c

#define MS_MSE_CONFIG_PORT              0x23f

#define MSBM_EXTENT                     0x3

#define MS_MSE_ENABLE_INTERRUPTS        0x11

#define MS_MSE_DISABLE_INTERRUPTS       0x10

#define MS_MSE_READ_BUTTONS             0x00

#define MS_MSE_READ_X                   0x01

#define MS_MSE_READ_Y                   0x02

#define MS_MSE_START                    0x80

#define MS_MSE_COMMAND_MODE             0x07

/* useful microsoft busmouse macros */

#define MS_MSE_INT_OFF() {outb(MS_MSE_COMMAND_MODE, MS_MSE_CONTROL_PORT); \

                            outb(MS_MSE_DISABLE_INTERRUPTS, MS_MSE_DATA_PORT);}

#define MS_MSE_INT_ON()  {outb(MS_MSE_COMMAND_MODE, MS_MSE_CONTROL_PORT); \

                            outb(MS_MSE_ENABLE_INTERRUPTS, MS_MSE_DATA_PORT);}

struct mouse_status {

        unsigned char   buttons;

        unsigned char   latch_buttons;

        int             dx;

        int             dy;

        int             present;

        int             ready;

        int             active;

        struct wait_queue *wait;

        struct fasync_struct *fasyncptr;

};

/* Function Prototypes */

#endif