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/*
* RTEMS for Nintendo DS touchscreen driver.
*
* Copyright (c) 2008 by Matthieu Bucchianeri <mbucchia@gmail.com>
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
*
* http://www.rtems.com/license/LICENSE
*/
#include <stdlib.h>
#include <stdio.h>
#include <errno.h>
#include <sys/types.h>
#include <bsp.h>
#include <rtems/irq.h>
#include <rtems/libio.h>
#include <nds.h>
#include <rtems/mw_uid.h>
#include "touchscreen.h"
/*
* from parser.c
*/
void register_mou_msg_queue (char *q_name);
void unregister_mou_msg_queue (void);
void touchscreen_sethand (int);
/*
* touchscreen device driver initialize entry point.
*/
rtems_device_driver
touchscreen_initialize (rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
rtems_status_code status;
printk ("[+] touchscreen started\n");
touchscreen_sethand (1);
/* register the device */
status = rtems_io_register_name ("/dev/mouse", major, 0);
if (status != RTEMS_SUCCESSFUL) {
printk ("[!] error registering touchscreen\n");
rtems_fatal_error_occurred (status);
}
return RTEMS_SUCCESSFUL;
}
/*
* touchscreen device driver open operation.
*/
rtems_device_driver
touchscreen_open (rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
return RTEMS_SUCCESSFUL;
}
/*
* touchscreen device driver close operation.
*/
rtems_device_driver
touchscreen_close (rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
return RTEMS_SUCCESSFUL;
}
/*
* touchscreen device driver read operation.
*/
rtems_device_driver
touchscreen_read (rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) arg;
rw_args->bytes_moved = 0;
return RTEMS_SUCCESSFUL;
}
/*
* touchscreen device driver write operation.
*/
rtems_device_driver
touchscreen_write (rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
rtems_libio_rw_args_t *rw_args = (rtems_libio_rw_args_t *) arg;
rw_args->bytes_moved = 0;
return RTEMS_SUCCESSFUL;
}
/*
* ioctl entry point.
*/
rtems_device_driver
touchscreen_control (rtems_device_major_number major,
rtems_device_minor_number minor, void *arg)
{
rtems_libio_ioctl_args_t *args = arg;
switch (args->command) {
case MW_UID_REGISTER_DEVICE:
register_mou_msg_queue (args->buffer);
break;
case MW_UID_UNREGISTER_DEVICE:
unregister_mou_msg_queue ();
break;
case MW_UID_SET_LEFTHANDED:
touchscreen_sethand (0);
break;
case MW_UID_SET_RIGHTHANDED:
touchscreen_sethand (1);
break;
}
args->ioctl_return = 0;
return RTEMS_SUCCESSFUL;
}
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