From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from metis.ext.pengutronix.de ([2001:67c:670:201:290:27ff:fe1d:cc33]) by bombadil.infradead.org with esmtps (Exim 4.87 #1 (Red Hat Linux)) id 1chGon-0005Ri-Qp for barebox@lists.infradead.org; Fri, 24 Feb 2017 14:26:01 +0000 From: Bastian Stender Date: Fri, 24 Feb 2017 15:25:00 +0100 Message-Id: <20170224142501.2679-4-bst@pengutronix.de> In-Reply-To: <20170224142501.2679-1-bst@pengutronix.de> References: <20170224142501.2679-1-bst@pengutronix.de> List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "barebox" Errors-To: barebox-bounces+u.kleine-koenig=pengutronix.de@lists.infradead.org Subject: [PATCH 3/4] fb: introduce flush for virtual framebuffer To: barebox@lists.infradead.org Cc: Bastian Stender Some drivers need an explicit sync method to flush the virtual framebuffer to the display. It is called fb_flush(). fb_flush() gets called on fbc_putc, on fb_close and in the pattern cycle in the fbtest command. Signed-off-by: Bastian Stender --- commands/fbtest.c | 1 + drivers/video/fb.c | 26 ++++++++++++++++++++++++++ drivers/video/fbconsole.c | 3 +++ include/fb.h | 2 ++ 4 files changed, 32 insertions(+) diff --git a/commands/fbtest.c b/commands/fbtest.c index bd0e140d07..ca6ec21991 100644 --- a/commands/fbtest.c +++ b/commands/fbtest.c @@ -169,6 +169,7 @@ static int do_fbtest(int argc, char *argv[]) pattern = patterns[i++ % ARRAY_SIZE(patterns)].func; pattern(sc, color); gu_screen_blit(sc); + fb_flush(sc->info); start = get_time_ns(); while (!is_timeout(start, 2 * SECOND)) diff --git a/drivers/video/fb.c b/drivers/video/fb.c index 4d2d3aa650..6b88f2df97 100644 --- a/drivers/video/fb.c +++ b/drivers/video/fb.c @@ -31,6 +31,30 @@ static int fb_ioctl(struct cdev* cdev, int req, void *data) return 0; } +static int fb_close(struct cdev *cdev) +{ + struct fb_info *info = cdev->priv; + + if (info->fbops->fb_flush) + info->fbops->fb_flush(info); + return 0; +} + +static int fb_op_flush(struct cdev *cdev) +{ + struct fb_info *info = cdev->priv; + + if (info->fbops->fb_flush) + info->fbops->fb_flush(info); + return 0; +} + +void fb_flush(struct fb_info *info) +{ + if (info->fbops->fb_flush) + info->fbops->fb_flush(info); +} + static void fb_release_shadowfb(struct fb_info *info) { free(info->screen_base_shadow); @@ -199,6 +223,8 @@ static struct file_operations fb_ops = { .memmap = generic_memmap_rw, .lseek = dev_lseek_default, .ioctl = fb_ioctl, + .close = fb_close, + .flush = fb_op_flush, }; static void fb_print_mode(struct fb_videomode *mode) diff --git a/drivers/video/fbconsole.c b/drivers/video/fbconsole.c index 64f7d7364e..4cf8338ed8 100644 --- a/drivers/video/fbconsole.c +++ b/drivers/video/fbconsole.c @@ -292,6 +292,7 @@ static void fbc_putc(struct console_device *cdev, char c) { struct fbc_priv *priv = container_of(cdev, struct fbc_priv, cdev); + struct fb_info *fb = priv->fb; if (priv->in_console) return; @@ -345,6 +346,8 @@ static void fbc_putc(struct console_device *cdev, char c) break; } priv->in_console = 0; + + fb_flush(fb); } static int setup_font(struct fbc_priv *priv) diff --git a/include/fb.h b/include/fb.h index b2a9c7152b..271b939968 100644 --- a/include/fb.h +++ b/include/fb.h @@ -86,6 +86,7 @@ struct fb_ops { void (*fb_enable)(struct fb_info *info); void (*fb_disable)(struct fb_info *info); int (*fb_activate_var)(struct fb_info *info); + void (*fb_flush)(struct fb_info *info); }; /* @@ -152,6 +153,7 @@ int register_framebuffer(struct fb_info *info); int fb_enable(struct fb_info *info); int fb_disable(struct fb_info *info); +void fb_flush(struct fb_info *info); #define FBIOGET_SCREENINFO _IOR('F', 1, loff_t) #define FBIO_ENABLE _IO('F', 2) -- 2.11.0 _______________________________________________ barebox mailing list barebox@lists.infradead.org http://lists.infradead.org/mailman/listinfo/barebox