/*
* Present frame and synchronize with the display to prevent tearing
* On DSI panels the sync function is used to handle FRAMEDONE IRQ
* On DPI panels the wait_for_vsync is used to handle VSYNC IRQ
* in: psDevInfo
*/
void OMAPLFBPresentSync(OMAPLFB_DEVINFO *psDevInfo,
OMAPLFB_FLIP_ITEM *psFlipItem)
{
struct fb_info *framebuffer = psDevInfo->psLINFBInfo;
struct omapfb_info *ofbi = FB2OFB(framebuffer);
struct omap_dss_device *display;
struct omapfb2_device *fbdev = ofbi->fbdev;
struct omap_dss_driver *driver;
struct omap_overlay_manager *manager;
int err = 1;
omapfb_lock(fbdev);
// [email protected] Backup the Display device for using later [START]
#if defined(CONFIG_MACH_LGE_OMAP3)
Prev_disp = display = fb2display(framebuffer);
#else
display = fb2display(framebuffer);
#endif
// [email protected] Backup the Display device for using later [END]
/* The framebuffer doesn't have a display attached, just bail out */
if (!display) {
omapfb_unlock(fbdev);
return;
}
driver = display->driver;
manager = display->manager;
if (driver && driver->sync &&
driver->get_update_mode(display) == OMAP_DSS_UPDATE_MANUAL) {
/* Wait first for the DSI bus to be released then update */
err = driver->sync(display);
OMAPLFBFlipNoLock(psDevInfo->psSwapChain,
(unsigned long)psFlipItem->sSysAddr->uiAddr);
} else if (manager && manager->wait_for_vsync) {
/*
* Update the video pipelines registers then wait until the
* frame is shown with a VSYNC
*/
OMAPLFBFlipNoLock(psDevInfo->psSwapChain,
(unsigned long)psFlipItem->sSysAddr->uiAddr);
err = manager->wait_for_vsync(manager);
}
if (err)
WARNING_PRINTK("Unable to sync with display %u!",
psDevInfo->uDeviceID);
omapfb_unlock(fbdev);
}
void OMAPLFBFlip(OMAPLFB_SWAPCHAIN *psSwapChain, unsigned long aPhyAddr)
{
OMAPLFB_DEVINFO *psDevInfo = (OMAPLFB_DEVINFO *)psSwapChain->pvDevInfo;
struct fb_info *framebuffer = psDevInfo->psLINFBInfo;
struct omapfb_info *ofbi = FB2OFB(framebuffer);
struct omapfb2_device *fbdev = ofbi->fbdev;
omapfb_lock(fbdev);
OMAPLFBFlipNoLock(psSwapChain, aPhyAddr);
omapfb_unlock(fbdev);
}
/*
* Synchronize with the display to prevent tearing
* On DSI panels the display->sync function is used to handle FRAMEDONE IRQ
* On DPI panels the display->wait_vsync is used to handle VSYNC IRQ
* in: psDevInfo
*/
void OMAPLFBPresentSync(OMAPLFB_DEVINFO *psDevInfo,
OMAPLFB_FLIP_ITEM *psFlipItem)
{
struct fb_info * framebuffer = psDevInfo->psLINFBInfo;
struct omapfb_info *ofbi = FB2OFB(framebuffer);
struct omapfb2_device *fbdev = ofbi->fbdev;
struct omap_dss_device *display;
int err = 1;
omapfb_lock(fbdev);
display = fb2display(framebuffer);
/* The framebuffer doesn't have a display attached, just bail out */
if (!display) {
omapfb_unlock(fbdev);
return;
}
if (display->sync &&
display->get_update_mode(display) == OMAP_DSS_UPDATE_MANUAL) {
/* Wait first for the DSI bus to be released then update */
err = display->sync(display);
OMAPLFBFlipNoLock(psDevInfo->psSwapChain,
(unsigned long)psFlipItem->sSysAddr->uiAddr);
} else if (display->wait_vsync) {
/*
* Update the video pipelines registers then wait until the
* frame is shown with a VSYNC
*/
OMAPLFBFlipNoLock(psDevInfo->psSwapChain,
(unsigned long)psFlipItem->sSysAddr->uiAddr);
err = display->wait_vsync(display);
}
if (err)
WARNING_PRINTK("Unable to sync with display %u!",
psDevInfo->uDeviceID);
omapfb_unlock(fbdev);
}
