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/*
* DRI for the SMedia Glamo3362 X.org Driver
*
* Modified: 2009 by Thomas White <taw@bitwiz.org.uk>
*
* Based on dri2.c from xf86-video-modesetting, to which the following
* notice applies:
*
* Copyright 2008 Tungsten Graphics, Inc., Cedar Park, Texas.
* All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
*
* Author: Alan Hourihane <alanh@tungstengraphics.com>
*
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include "xf86.h"
#include "xf86_OSproc.h"
#include "glamo.h"
#include "glamo-dri2.h"
extern unsigned int driGetPixmapHandle(PixmapPtr pPixmap, unsigned int *flags);
void driLock(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
GlamoPtr pGlamo = GlamoPTR(pScrn);
if (!pGlamo->lock_held)
DRM_LOCK(pGlamo->drm_fd, pGlamo->lock, pGlamo->context, 0);
pGlamo->lock_held = 1;
}
void driUnlock(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
GlamoPtr pGlamo = GlamoPTR(pScrn);
if (pGlamo->lock_held)
DRM_UNLOCK(pGlamo->drm_fd, pGlamo->lock, pGlamo->context);
pGlamo->lock_held = 0;
}
static void driBeginClipNotify(ScreenPtr pScreen)
{
driLock(pScreen);
}
static void driEndClipNotify(ScreenPtr pScreen)
{
driUnlock(pScreen);
}
struct __DRILock
{
unsigned int block_header;
drm_hw_lock_t lock;
unsigned int next_id;
};
#define DRI2_SAREA_BLOCK_HEADER(type, size) (((type) << 16) | (size))
#define DRI2_SAREA_BLOCK_LOCK 0x0001
void driScreenInit(ScreenPtr pScreen)
{
ScrnInfoPtr pScrn = xf86Screens[pScreen->myNum];
GlamoPtr pGlamo = GlamoPTR(pScrn);
DRI2InfoRec dri2info;
const char *driverName;
unsigned int sarea_handle;
struct __DRILock *DRILock;
void *p;
dri2info.version = 1;
dri2info.fd = pGlamo->drm_fd;
dri2info.driverSareaSize = sizeof(struct __DRILock);
dri2info.driverName = "i915"; /* FIXME */
dri2info.getPixmapHandle = driGetPixmapHandle;
dri2info.beginClipNotify = driBeginClipNotify;
dri2info.endClipNotify = driEndClipNotify;
p = DRI2ScreenInit(pScreen, &dri2info);
if (!p) return;
DRILock = p;
DRILock->block_header =
DRI2_SAREA_BLOCK_HEADER(DRI2_SAREA_BLOCK_LOCK, sizeof *DRILock);
pGlamo->lock = &DRILock->lock;
pGlamo->context = 1;
DRILock->next_id = 2;
driLock(pScreen);
DRI2Connect(pScreen, &pGlamo->drm_fd, &driverName, &sarea_handle);
}
void driCloseScreen(ScreenPtr pScreen)
{
driUnlock(pScreen);
DRI2CloseScreen(pScreen);
}
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