hotplug.c
/** \file
* Hotplug event detection.
*
* Ignores the video input so that no LCD switch occurs.
*/
/*
* Copyright (C) 2009 Trammell Hudson <hudson+ml@osresearch.net>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the
* Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*/
#include "dryos.h"
#include "hotplug.h"
static void
my_hotplug_task( void )
{
volatile uint32_t * camera_engine = (void*) 0xC0220000;
DebugMsg( DM_MAGIC, 3,
"%s: Starting up using camera engine %x",
__func__,
camera_engine
);
return;
while(1)
{
// \todo THIS DOES NOT WORK!
uint32_t video_state = camera_engine[0x70/4];
if( video_state == 1 )
{
if( hotplug_struct.last_video_state != video_state )
{
DebugMsg( 0x84, 3, "Video Connect -->" );
hotplug_struct.last_video_state = video_state;
}
} else {
if( hotplug_struct.last_video_state != video_state )
{
DebugMsg( 0x84, 3, "Video Disconnect" );
hotplug_struct.last_video_state = video_state;
}
}
// Something with a semaphore? Sleep?
}
}
TASK_OVERRIDE( hotplug_task, my_hotplug_task );