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/*
/////////////////////////////////////////////////////////////////////////////
// $Header$
//
// Copyright (c) 2000 - Rosimildo da Silva
//
// MODULE DESCRIPTION:
// This module defines the interface for input devices used by MicroWindows
// in an embedded system environment.
//
// MODIFICATION/HISTORY:
//
// $Log$
//
/////////////////////////////////////////////////////////////////////////////
*/
#ifndef _MW_UID_H
#define _MW_UID_H
#ifdef __cplusplus
extern "C" {
#endif
/* 0x41XX -- IOCLT functions for the Micro Input Devices commands */
#define MW_UID_REGISTER_DEVICE 0x4100
#define MW_UID_UNREGISTER_DEVICE 0x4101
/* devices supported by MicroWindows */
enum MW_INPUT_DEVICE_TYPE
{
MV_UID_INVALID = 0,
MV_UID_REL_POS = 1, /* mouse */
MV_UID_ABS_POS = 2, /* touch-screen */
MV_UID_KBD = 3, /* keyboard */
MV_UID_TIMER = 4 /* timer -- not used */
};
/* matching MicroWindows */
#define MV_BUTTON_RIGHT 0x01
#define MV_BUTTON_CENTER 0x02
#define MV_BUTTON_LEFT 0x04
/* modifiers of the keyboard type devices */
#define MV_KEY_MODIFIER_SHIFT_DOWN 0x10
#define MV_KEY_MODIFIER_ALT_DOWN 0x20
/* indication of the LEDS */
#define MV_KEY_MODIFIER_CAPS_ON 0x04
#define MV_KEY_MODIFIER_NUN_LOCK_ON 0x02
#define MV_KEY_SCROLL_LOCK_ON 0x01
/* keyboard modes -- default ASCII */
#define MV_KEY_MODE_ASCII 0x01
/*
* This mode one event is sent when a key is pressed,
* and another one is send when a key is released.
*/
#define MV_KEY_MODE_SCANCODE 0x00
/* these defines match with the linux keyboard range
for ioctls functions for the keyboard interface.
0x4BXX --- keyboard related functions
*/
#define MV_KDGKBMODE 0x4B44 /* gets current keyboard mode */
#define MV_KDSKBMODE 0x4B45 /* sets current keyboard mode */
/*
* Message generated by input devices controlled by MicroWindows.
*/
struct MW_UID_MESSAGE
{
enum MW_INPUT_DEVICE_TYPE type; /* device type */
union
{
/* fired when keyboard events are raised */
struct kbd_t {
unsigned short code; /* keycode or scancode */
unsigned char modifiers; /* key modifiers */
unsigned char mode; /* current Kbd mode */
} kbd;
/* fired when position events are raised, mouse, touch screen, etc */
struct pos_t {
unsigned short btns; /* indicates which buttons are pressed */
short x; /* x location */
short y; /* y location */
short z; /* z location, 0 for 2D */
} pos;
/* fired by a timer device periodically */
struct timer_t {
unsigned long frt; /* free running timer */
unsigned long seq; /* sequence number */
} tmr;
} m;
};
/*
* API for creating/closing/accessing the message queue used by the micro
* input device interface. All functions in this interface returns a
* zero ( 0 ) on success. One exception for that is the "read" routine
* that returns the number of bytes read. Negaive numbers indicate errors
*
* The implementation of the message queue for RTEMS uses a POSIX message
* queue interface. It should be very portable among systems with a POSIX
* support.
*/
/* creates the message queue that holds events from the input devices */
extern int uid_open_queue( const char *q_name, int flags, size_t max_msgs );
/* closes message queue */
extern int uid_close_queue( void );
/*
* reads a message from the queue. It waits up to the specified
* timeout in mili-seconds.
*/
extern int uid_read_message( struct MW_UID_MESSAGE *m, unsigned long timeout );
/* write a message to the queue */
extern int uid_write_message( struct MW_UID_MESSAGE *m );
/* register device to insert data to the queue */
extern int uid_register_device( int fd, const char *q_name );
/* unregister device to stop adding messages to the queue */
extern int uid_unregister_device( int fd );
/* set the keyboard */
extern int uid_set_kbd_mode( int fd, int mode, int *old_mode );
#ifdef __cplusplus
}
#endif
#endif /* _MW_UID_H */
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