drivers/video: add fb_vsync_pollnotify
when the vsync comes, fb drivers should call fb_vsync_pollnotify to notify POLLPRI, so that users can catch the synchronization time of vsync and do something. Signed-off-by: jianglianfang <jianglianfang@xiaomi.com>
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a2662bd369
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8122cbd5d2
@ -426,6 +426,7 @@ void sim_x11loop(void)
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if (now - last >= MSEC2TICK(16))
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{
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last = now;
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fb_notify_vsync(&g_fbobject, FB_NO_OVERLAY);
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if (fb_paninfo_count(&g_fbobject, FB_NO_OVERLAY) > 1)
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{
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fb_remove_paninfo(&g_fbobject, FB_NO_OVERLAY);
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@ -463,7 +464,8 @@ int up_fbinitialize(int display)
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#ifdef CONFIG_SIM_X11FB
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g_planeinfo.xres_virtual = CONFIG_SIM_FBWIDTH;
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g_planeinfo.yres_virtual = CONFIG_SIM_FBHEIGHT * CONFIG_SIM_FRAMEBUFFER_COUNT;
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g_planeinfo.yres_virtual = CONFIG_SIM_FBHEIGHT *
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CONFIG_SIM_FRAMEBUFFER_COUNT;
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ret = sim_x11initialize(CONFIG_SIM_FBWIDTH, CONFIG_SIM_FBHEIGHT,
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&g_planeinfo.fbmem, &g_planeinfo.fblen,
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&g_planeinfo.bpp, &g_planeinfo.stride,
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@ -1223,17 +1223,14 @@ static int fb_get_planeinfo(FAR struct fb_chardev_s *fb,
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}
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/****************************************************************************
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* Name: fb_do_pollnotify
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* Name: fb_notify_paninfo
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****************************************************************************/
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static void fb_do_pollnotify(wdparm_t arg)
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static void fb_notify_paninfo(FAR struct fb_paninfo_s *paninfo,
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pollevent_t events, int overlay)
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{
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FAR struct fb_paninfo_s *paninfo = (FAR struct fb_paninfo_s *)arg;
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FAR struct fb_priv_s * priv;
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irqstate_t flags;
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int overlay;
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overlay = paninfo - paninfo->dev->paninfo - 1;
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flags = enter_critical_section();
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for (priv = paninfo->dev->head; priv; priv = priv->flink)
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@ -1245,12 +1242,26 @@ static void fb_do_pollnotify(wdparm_t arg)
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/* Notify framebuffer is writable. */
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poll_notify(priv->fds, CONFIG_VIDEO_FB_NPOLLWAITERS, POLLOUT);
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poll_notify(priv->fds, CONFIG_VIDEO_FB_NPOLLWAITERS, events);
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}
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leave_critical_section(flags);
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}
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/****************************************************************************
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* Name: fb_do_pollnotify
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****************************************************************************/
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static void fb_do_pollnotify(wdparm_t arg)
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{
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FAR struct fb_paninfo_s *paninfo = (FAR struct fb_paninfo_s *)arg;
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int overlay;
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overlay = paninfo - paninfo->dev->paninfo - 1;
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fb_notify_paninfo(paninfo, POLLOUT, overlay);
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}
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#ifdef CONFIG_FB_SYNC
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/****************************************************************************
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* Name: fb_sem_wait
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@ -1355,6 +1366,30 @@ static void fb_pollnotify(FAR struct fb_chardev_s *fb, int overlay)
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: fb_notify_vsync
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* Description:
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* notify that the vsync comes.
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*
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* Input Parameters:
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* vtable - Pointer to framebuffer's virtual table.
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* overlay - Overlay index.
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*
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****************************************************************************/
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void fb_notify_vsync(FAR struct fb_vtable_s *vtable, int overlay)
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{
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FAR struct fb_chardev_s *fb;
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FAR struct fb_paninfo_s *paninfo;
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fb = vtable->priv;
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if (fb != NULL)
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{
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paninfo = &fb->paninfo[overlay + 1];
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fb_notify_paninfo(paninfo, POLLPRI, overlay);
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}
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}
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/****************************************************************************
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* Name: fb_peek_paninfo
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* Description:
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@ -1008,6 +1008,19 @@ FAR struct fb_vtable_s *up_fbgetvplane(int display, int vplane);
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void up_fbuninitialize(int display);
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/****************************************************************************
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* Name: fb_notify_vsync
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* Description:
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* notify that the vsync comes.
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*
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* Input Parameters:
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* vtable - Pointer to framebuffer's virtual table.
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* overlay - Overlay index.
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*
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****************************************************************************/
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void fb_notify_vsync(FAR struct fb_vtable_s *vtable, int overlay);
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/****************************************************************************
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* Name: fb_peek_paninfo
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* Description:
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