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authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 10:21:02 +0900
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-12 10:21:02 +0900
commit5f76945a9c978b8b8bf8eb7fe3b17b9981240a97 (patch)
treedf61aca168df657bc71ce8b578bcb0c81b0622ee /drivers/video/omap2/dss/venc_panel.c
parent940e3a8dd6683a3787faf769b3df7a06f1c2fa31 (diff)
parentcd9d6f10d07f26dd8a70e519c22b6b4f8a9e3e7a (diff)
Merge tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6
Pull fbdev updates from Florian Tobias Schandinat: "This includes: - large updates for OMAP - basic OMAP5 DSS support for DPI and DSI outputs - large cleanups and restructuring - some update to Exynos and da8xx-fb - removal of the pnx4008 driver (arch removed) - various other small patches" Fix up some trivial conflicts (mostly just include line changes, but also some due to the renaming of the deferred work functions by Tejun). * tag 'fbdev-updates-for-3.7' of git://github.com/schandinat/linux-2.6: (193 commits) gbefb: fix compile error video: mark nuc900fb_map_video_memory as __devinit video/mx3fb: set .owner to prevent module unloading while being used video: exynos_dp: use clk_prepare_enable and clk_disable_unprepare drivers/video/exynos/exynos_mipi_dsi.c: fix error return code drivers/video/savage/savagefb_driver.c: fix error return code video: s3c-fb: use clk_prepare_enable and clk_disable_unprepare da8xx-fb: save and restore LCDC context across suspend/resume cycle da8xx-fb: add pm_runtime support video/udlfb: fix line counting in fb_write OMAPDSS: add missing include for string.h OMAPDSS: DISPC: Configure color conversion coefficients for writeback OMAPDSS: DISPC: Add manager like functions for writeback OMAPDSS: DISPC: Configure writeback FIFOs OMAPDSS: DISPC: Configure writeback specific parameters in dispc_wb_setup() OMAPDSS: DISPC: Configure overlay-like parameters in dispc_wb_setup OMAPDSS: DISPC: Add function to set channel in for writeback OMAPDSS: DISPC: Don't set chroma resampling bit for writeback OMAPDSS: DISPC: Downscale chroma if plane is writeback OMAPDSS: DISPC: Configure input and output sizes for writeback ...
Diffstat (limited to 'drivers/video/omap2/dss/venc_panel.c')
-rw-r--r--drivers/video/omap2/dss/venc_panel.c251
1 files changed, 251 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/venc_panel.c b/drivers/video/omap2/dss/venc_panel.c
new file mode 100644
index 00000000000..d55b8784ecf
--- /dev/null
+++ b/drivers/video/omap2/dss/venc_panel.c
@@ -0,0 +1,251 @@
+/*
+ * Copyright (C) 2009 Nokia Corporation
+ * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
+ *
+ * VENC panel driver
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation.
+ *
+ * This program 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 General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include <linux/kernel.h>
+#include <linux/err.h>
+#include <linux/io.h>
+#include <linux/mutex.h>
+#include <linux/module.h>
+
+#include <video/omapdss.h>
+
+#include "dss.h"
+
+static struct {
+ struct mutex lock;
+} venc_panel;
+
+static ssize_t display_output_type_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ const char *ret;
+
+ switch (dssdev->phy.venc.type) {
+ case OMAP_DSS_VENC_TYPE_COMPOSITE:
+ ret = "composite";
+ break;
+ case OMAP_DSS_VENC_TYPE_SVIDEO:
+ ret = "svideo";
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return snprintf(buf, PAGE_SIZE, "%s\n", ret);
+}
+
+static ssize_t display_output_type_store(struct device *dev,
+ struct device_attribute *attr, const char *buf, size_t size)
+{
+ struct omap_dss_device *dssdev = to_dss_device(dev);
+ enum omap_dss_venc_type new_type;
+
+ if (sysfs_streq("composite", buf))
+ new_type = OMAP_DSS_VENC_TYPE_COMPOSITE;
+ else if (sysfs_streq("svideo", buf))
+ new_type = OMAP_DSS_VENC_TYPE_SVIDEO;
+ else
+ return -EINVAL;
+
+ mutex_lock(&venc_panel.lock);
+
+ if (dssdev->phy.venc.type != new_type) {
+ dssdev->phy.venc.type = new_type;
+ omapdss_venc_set_type(dssdev, new_type);
+ if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
+ omapdss_venc_display_disable(dssdev);
+ omapdss_venc_display_enable(dssdev);
+ }
+ }
+
+ mutex_unlock(&venc_panel.lock);
+
+ return size;
+}
+
+static DEVICE_ATTR(output_type, S_IRUGO | S_IWUSR,
+ display_output_type_show, display_output_type_store);
+
+static int venc_panel_probe(struct omap_dss_device *dssdev)
+{
+ /* set default timings to PAL */
+ const struct omap_video_timings default_timings = {
+ .x_res = 720,
+ .y_res = 574,
+ .pixel_clock = 13500,
+ .hsw = 64,
+ .hfp = 12,
+ .hbp = 68,
+ .vsw = 5,
+ .vfp = 5,
+ .vbp = 41,
+
+ .vsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
+ .hsync_level = OMAPDSS_SIG_ACTIVE_HIGH,
+
+ .interlace = true,
+ };
+
+ mutex_init(&venc_panel.lock);
+
+ dssdev->panel.timings = default_timings;
+
+ return device_create_file(&dssdev->dev, &dev_attr_output_type);
+}
+
+static void venc_panel_remove(struct omap_dss_device *dssdev)
+{
+ device_remove_file(&dssdev->dev, &dev_attr_output_type);
+}
+
+static int venc_panel_enable(struct omap_dss_device *dssdev)
+{
+ int r;
+
+ dev_dbg(&dssdev->dev, "venc_panel_enable\n");
+
+ mutex_lock(&venc_panel.lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ r = -EINVAL;
+ goto err;
+ }
+
+ omapdss_venc_set_timings(dssdev, &dssdev->panel.timings);
+ omapdss_venc_set_type(dssdev, dssdev->phy.venc.type);
+ omapdss_venc_invert_vid_out_polarity(dssdev,
+ dssdev->phy.venc.invert_polarity);
+
+ r = omapdss_venc_display_enable(dssdev);
+ if (r)
+ goto err;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
+ mutex_unlock(&venc_panel.lock);
+
+ return 0;
+err:
+ mutex_unlock(&venc_panel.lock);
+
+ return r;
+}
+
+static void venc_panel_disable(struct omap_dss_device *dssdev)
+{
+ dev_dbg(&dssdev->dev, "venc_panel_disable\n");
+
+ mutex_lock(&venc_panel.lock);
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
+ goto end;
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
+ /* suspended is the same as disabled with venc */
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+ goto end;
+ }
+
+ omapdss_venc_display_disable(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+end:
+ mutex_unlock(&venc_panel.lock);
+}
+
+static int venc_panel_suspend(struct omap_dss_device *dssdev)
+{
+ venc_panel_disable(dssdev);
+ return 0;
+}
+
+static int venc_panel_resume(struct omap_dss_device *dssdev)
+{
+ return venc_panel_enable(dssdev);
+}
+
+static void venc_panel_set_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ dev_dbg(&dssdev->dev, "venc_panel_set_timings\n");
+
+ mutex_lock(&venc_panel.lock);
+
+ omapdss_venc_set_timings(dssdev, timings);
+ dssdev->panel.timings = *timings;
+
+ mutex_unlock(&venc_panel.lock);
+}
+
+static int venc_panel_check_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ dev_dbg(&dssdev->dev, "venc_panel_check_timings\n");
+
+ return omapdss_venc_check_timings(dssdev, timings);
+}
+
+static u32 venc_panel_get_wss(struct omap_dss_device *dssdev)
+{
+ dev_dbg(&dssdev->dev, "venc_panel_get_wss\n");
+
+ return omapdss_venc_get_wss(dssdev);
+}
+
+static int venc_panel_set_wss(struct omap_dss_device *dssdev, u32 wss)
+{
+ dev_dbg(&dssdev->dev, "venc_panel_set_wss\n");
+
+ return omapdss_venc_set_wss(dssdev, wss);
+}
+
+static struct omap_dss_driver venc_driver = {
+ .probe = venc_panel_probe,
+ .remove = venc_panel_remove,
+
+ .enable = venc_panel_enable,
+ .disable = venc_panel_disable,
+ .suspend = venc_panel_suspend,
+ .resume = venc_panel_resume,
+
+ .get_resolution = omapdss_default_get_resolution,
+ .get_recommended_bpp = omapdss_default_get_recommended_bpp,
+
+ .set_timings = venc_panel_set_timings,
+ .check_timings = venc_panel_check_timings,
+
+ .get_wss = venc_panel_get_wss,
+ .set_wss = venc_panel_set_wss,
+
+ .driver = {
+ .name = "venc",
+ .owner = THIS_MODULE,
+ },
+};
+
+int venc_panel_init(void)
+{
+ return omap_dss_register_driver(&venc_driver);
+}
+
+void venc_panel_exit(void)
+{
+ omap_dss_unregister_driver(&venc_driver);
+}