OMAPDSS: remove venc_panel.c

/*

 * 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,

		.pixelclock	= 13500000,

		.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;

	omapdss_venc_display_disable(dssdev);

	dssdev->state = OMAP_DSS_DISPLAY_DISABLED;

end:

	mutex_unlock(&venc_panel.lock);

}

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,

	.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);

}