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/*
* Copyright (C) 2006 Claudio Ciccani <klan@users.sf.net>
*
* Graphics driver for ATI Radeon cards written by
* Claudio Ciccani <klan@users.sf.net>.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
*/
#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <directfb.h>
#include <core/coredefs.h>
#include <core/screen.h>
#include <core/screens.h>
#include <core/layers.h>
#include <core/layer_context.h>
#include <core/layer_region.h>
#include <core/layer_control.h>
#include <core/layers_internal.h>
#include <core/surface.h>
#include <core/system.h>
#include <misc/conf.h>
#include "radeon.h"
#include "radeon_regs.h"
#include "radeon_mmio.h"
/*************************** CRTC1 Screen functions **************************/
static DFBResult
crtc1WaitVSync( CoreScreen *screen,
void *driver_data,
void *screen_data )
{
RadeonDriverData *rdrv = (RadeonDriverData*) driver_data;
volatile u8 *mmio = rdrv->mmio_base;
int i;
if (dfb_config->pollvsync_none)
return DFB_OK;
radeon_out32( mmio, GEN_INT_STATUS,
(radeon_in32( mmio, GEN_INT_STATUS ) & ~VSYNC_INT) | VSYNC_INT_AK );
for (i = 0; i < 2000000; i++) {
struct timespec t = { 0, 10000 };
if (radeon_in32( mmio, GEN_INT_STATUS ) & VSYNC_INT)
break;
nanosleep( &t, NULL );
}
return DFB_OK;
}
ScreenFuncs RadeonCrtc1ScreenFuncs = {
.WaitVSync = crtc1WaitVSync
};
ScreenFuncs OldPrimaryScreenFuncs;
void *OldPrimaryScreenDriverData;
/*************************** CRTC1 Layer functions **************************/
#define CRTC1_SUPPORTED_OPTIONS ( DLOP_ALPHACHANNEL )
static DFBResult
crtc1InitLayer( CoreLayer *layer,
void *driver_data,
void *layer_data,
DFBDisplayLayerDescription *description,
DFBDisplayLayerConfig *config,
DFBColorAdjustment *adjustment )
{
DFBResult ret;
ret = OldPrimaryLayerFuncs.InitLayer( layer,
OldPrimaryLayerDriverData,
layer_data, description,
config, adjustment );
description->caps |= DLCAPS_ALPHACHANNEL;
return ret;
}
static DFBResult
crtc1TestRegion( CoreLayer *layer,
void *driver_data,
void *layer_data,
CoreLayerRegionConfig *config,
CoreLayerRegionConfigFlags *failed )
{
CoreLayerRegionConfig layer_config;
CoreLayerRegionConfigFlags fail = 0;
DFBResult ret;
layer_config = *config;
layer_config.options &= ~CRTC1_SUPPORTED_OPTIONS;
ret = OldPrimaryLayerFuncs.TestRegion( layer,
OldPrimaryLayerDriverData,
layer_data, &layer_config, &fail );
if (config->options & ~CRTC1_SUPPORTED_OPTIONS)
fail |= CLRCF_OPTIONS;
if (config->options & DLOP_ALPHACHANNEL && config->format != DSPF_ARGB)
fail |= CLRCF_OPTIONS;
if (failed)
*failed = fail;
return fail ? DFB_UNSUPPORTED : DFB_OK;
}
static DFBResult
crtc1SetRegion( CoreLayer *layer,
void *driver_data,
void *layer_data,
void *region_data,
CoreLayerRegionConfig *config,
CoreLayerRegionConfigFlags updated,
CoreSurface *surface,
CorePalette *palette,
CoreSurfaceBufferLock *lock )
{
if (updated & ~CLRCF_OPTIONS) {
return OldPrimaryLayerFuncs.SetRegion( layer,
OldPrimaryLayerDriverData,
layer_data, region_data,
config, updated, surface, palette, lock );
}
return DFB_OK;
}
DisplayLayerFuncs RadeonCrtc1LayerFuncs = {
.InitLayer = crtc1InitLayer,
.TestRegion = crtc1TestRegion,
.SetRegion = crtc1SetRegion
};
DisplayLayerFuncs OldPrimaryLayerFuncs;
void *OldPrimaryLayerDriverData;
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