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 000000000000..d55b8784ecfd
--- /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);
+}