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Commit 3f30b8c2 authored by Tomi Valkeinen's avatar Tomi Valkeinen
Browse files

OMAPDSS: create display-sysfs.c 



Move display sysfs related code from display.c to display-sysfs.c, for
clarity. The sysfs code will only be used for compat mode.

Signed-off-by: default avatarTomi Valkeinen <tomi.valkeinen@ti.com>
parent 74e16458

drivers/video/omap2/dss/Makefile

+2 −1
Original line number Diff line number Diff line 
obj-$(CONFIG_OMAP2_DSS) += omapdss.o

omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \

	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o

	manager.o manager-sysfs.o overlay.o overlay-sysfs.o output.o apply.o \

	display-sysfs.o

omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o

omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o

omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o

drivers/video/omap2/dss/display-sysfs.c

0 → 100644
+321 −0
Original line number Diff line number Diff line 
/*

 * Copyright (C) 2009 Nokia Corporation

 * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>

 *

 * Some code and ideas taken from drivers/video/omap/ driver

 * by Imre Deak.

 *

 * 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/>.

 */



#define DSS_SUBSYS_NAME "DISPLAY"



#include <linux/kernel.h>

#include <linux/module.h>

#include <linux/jiffies.h>

#include <linux/platform_device.h>



#include <video/omapdss.h>

#include "dss.h"

#include "dss_features.h"



static ssize_t display_enabled_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;



	return snprintf(buf, PAGE_SIZE, "%d\n", enabled);

}



static ssize_t display_enabled_store(struct device *dev,

		struct device_attribute *attr,

		const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int r;

	bool enabled;



	r = strtobool(buf, &enabled);

	if (r)

		return r;



	if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {

		if (enabled) {

			r = dssdev->driver->enable(dssdev);

			if (r)

				return r;

		} else {

			dssdev->driver->disable(dssdev);

		}

	}



	return size;

}



static ssize_t display_tear_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	return snprintf(buf, PAGE_SIZE, "%d\n",

			dssdev->driver->get_te ?

			dssdev->driver->get_te(dssdev) : 0);

}



static ssize_t display_tear_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int r;

	bool te;



	if (!dssdev->driver->enable_te || !dssdev->driver->get_te)

		return -ENOENT;



	r = strtobool(buf, &te);

	if (r)

		return r;



	r = dssdev->driver->enable_te(dssdev, te);

	if (r)

		return r;



	return size;

}



static ssize_t display_timings_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	struct omap_video_timings t;



	if (!dssdev->driver->get_timings)

		return -ENOENT;



	dssdev->driver->get_timings(dssdev, &t);



	return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",

			t.pixel_clock,

			t.x_res, t.hfp, t.hbp, t.hsw,

			t.y_res, t.vfp, t.vbp, t.vsw);

}



static ssize_t display_timings_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	struct omap_video_timings t = dssdev->panel.timings;

	int r, found;



	if (!dssdev->driver->set_timings || !dssdev->driver->check_timings)

		return -ENOENT;



	found = 0;

#ifdef CONFIG_OMAP2_DSS_VENC

	if (strncmp("pal", buf, 3) == 0) {

		t = omap_dss_pal_timings;

		found = 1;

	} else if (strncmp("ntsc", buf, 4) == 0) {

		t = omap_dss_ntsc_timings;

		found = 1;

	}

#endif

	if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",

				&t.pixel_clock,

				&t.x_res, &t.hfp, &t.hbp, &t.hsw,

				&t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)

		return -EINVAL;



	r = dssdev->driver->check_timings(dssdev, &t);

	if (r)

		return r;



	dssdev->driver->disable(dssdev);

	dssdev->driver->set_timings(dssdev, &t);

	r = dssdev->driver->enable(dssdev);

	if (r)

		return r;



	return size;

}



static ssize_t display_rotate_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int rotate;

	if (!dssdev->driver->get_rotate)

		return -ENOENT;

	rotate = dssdev->driver->get_rotate(dssdev);

	return snprintf(buf, PAGE_SIZE, "%u\n", rotate);

}



static ssize_t display_rotate_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int rot, r;



	if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)

		return -ENOENT;



	r = kstrtoint(buf, 0, &rot);

	if (r)

		return r;



	r = dssdev->driver->set_rotate(dssdev, rot);

	if (r)

		return r;



	return size;

}



static ssize_t display_mirror_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int mirror;

	if (!dssdev->driver->get_mirror)

		return -ENOENT;

	mirror = dssdev->driver->get_mirror(dssdev);

	return snprintf(buf, PAGE_SIZE, "%u\n", mirror);

}



static ssize_t display_mirror_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int r;

	bool mirror;



	if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)

		return -ENOENT;



	r = strtobool(buf, &mirror);

	if (r)

		return r;



	r = dssdev->driver->set_mirror(dssdev, mirror);

	if (r)

		return r;



	return size;

}



static ssize_t display_wss_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	unsigned int wss;



	if (!dssdev->driver->get_wss)

		return -ENOENT;



	wss = dssdev->driver->get_wss(dssdev);



	return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);

}



static ssize_t display_wss_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	u32 wss;

	int r;



	if (!dssdev->driver->get_wss || !dssdev->driver->set_wss)

		return -ENOENT;



	r = kstrtou32(buf, 0, &wss);

	if (r)

		return r;



	if (wss > 0xfffff)

		return -EINVAL;



	r = dssdev->driver->set_wss(dssdev, wss);

	if (r)

		return r;



	return size;

}



static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,

		display_enabled_show, display_enabled_store);

static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,

		display_tear_show, display_tear_store);

static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,

		display_timings_show, display_timings_store);

static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,

		display_rotate_show, display_rotate_store);

static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,

		display_mirror_show, display_mirror_store);

static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,

		display_wss_show, display_wss_store);



static struct device_attribute *display_sysfs_attrs[] = {

	&dev_attr_enabled,

	&dev_attr_tear_elim,

	&dev_attr_timings,

	&dev_attr_rotate,

	&dev_attr_mirror,

	&dev_attr_wss,

	NULL

};



int display_init_sysfs(struct platform_device *pdev,

		struct omap_dss_device *dssdev)

{

	struct device_attribute *attr;

	int i, r;



	/* create device sysfs files */

	i = 0;

	while ((attr = display_sysfs_attrs[i++]) != NULL) {

		r = device_create_file(&dssdev->dev, attr);

		if (r) {

			for (i = i - 2; i >= 0; i--) {

				attr = display_sysfs_attrs[i];

				device_remove_file(&dssdev->dev, attr);

			}



			DSSERR("failed to create sysfs file\n");

			return r;

		}

	}



	/* create display? sysfs links */

	r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,

			dev_name(&dssdev->dev));

	if (r) {

		while ((attr = display_sysfs_attrs[i++]) != NULL)

			device_remove_file(&dssdev->dev, attr);



		DSSERR("failed to create sysfs display link\n");

		return r;

	}



	return 0;

}



void display_uninit_sysfs(struct platform_device *pdev,

		struct omap_dss_device *dssdev)

{

	struct device_attribute *attr;

	int i = 0;



	sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev));



	while ((attr = display_sysfs_attrs[i++]) != NULL)

		device_remove_file(&dssdev->dev, attr);

}

drivers/video/omap2/dss/display.c

+3 −278
Original line number Diff line number Diff line
@@ -31,250 +31,6 @@ 
#include "dss.h"

#include "dss_features.h"



static ssize_t display_enabled_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;



	return snprintf(buf, PAGE_SIZE, "%d\n", enabled);

}



static ssize_t display_enabled_store(struct device *dev,

		struct device_attribute *attr,

		const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int r;

	bool enabled;



	r = strtobool(buf, &enabled);

	if (r)

		return r;



	if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {

		if (enabled) {

			r = dssdev->driver->enable(dssdev);

			if (r)

				return r;

		} else {

			dssdev->driver->disable(dssdev);

		}

	}



	return size;

}



static ssize_t display_tear_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	return snprintf(buf, PAGE_SIZE, "%d\n",

			dssdev->driver->get_te ?

			dssdev->driver->get_te(dssdev) : 0);

}



static ssize_t display_tear_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int r;

	bool te;



	if (!dssdev->driver->enable_te || !dssdev->driver->get_te)

		return -ENOENT;



	r = strtobool(buf, &te);

	if (r)

		return r;



	r = dssdev->driver->enable_te(dssdev, te);

	if (r)

		return r;



	return size;

}



static ssize_t display_timings_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	struct omap_video_timings t;



	if (!dssdev->driver->get_timings)

		return -ENOENT;



	dssdev->driver->get_timings(dssdev, &t);



	return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",

			t.pixel_clock,

			t.x_res, t.hfp, t.hbp, t.hsw,

			t.y_res, t.vfp, t.vbp, t.vsw);

}



static ssize_t display_timings_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	struct omap_video_timings t = dssdev->panel.timings;

	int r, found;



	if (!dssdev->driver->set_timings || !dssdev->driver->check_timings)

		return -ENOENT;



	found = 0;

#ifdef CONFIG_OMAP2_DSS_VENC

	if (strncmp("pal", buf, 3) == 0) {

		t = omap_dss_pal_timings;

		found = 1;

	} else if (strncmp("ntsc", buf, 4) == 0) {

		t = omap_dss_ntsc_timings;

		found = 1;

	}

#endif

	if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",

				&t.pixel_clock,

				&t.x_res, &t.hfp, &t.hbp, &t.hsw,

				&t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)

		return -EINVAL;



	r = dssdev->driver->check_timings(dssdev, &t);

	if (r)

		return r;



	dssdev->driver->disable(dssdev);

	dssdev->driver->set_timings(dssdev, &t);

	r = dssdev->driver->enable(dssdev);

	if (r)

		return r;



	return size;

}



static ssize_t display_rotate_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int rotate;

	if (!dssdev->driver->get_rotate)

		return -ENOENT;

	rotate = dssdev->driver->get_rotate(dssdev);

	return snprintf(buf, PAGE_SIZE, "%u\n", rotate);

}



static ssize_t display_rotate_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int rot, r;



	if (!dssdev->driver->set_rotate || !dssdev->driver->get_rotate)

		return -ENOENT;



	r = kstrtoint(buf, 0, &rot);

	if (r)

		return r;



	r = dssdev->driver->set_rotate(dssdev, rot);

	if (r)

		return r;



	return size;

}



static ssize_t display_mirror_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int mirror;

	if (!dssdev->driver->get_mirror)

		return -ENOENT;

	mirror = dssdev->driver->get_mirror(dssdev);

	return snprintf(buf, PAGE_SIZE, "%u\n", mirror);

}



static ssize_t display_mirror_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	int r;

	bool mirror;



	if (!dssdev->driver->set_mirror || !dssdev->driver->get_mirror)

		return -ENOENT;



	r = strtobool(buf, &mirror);

	if (r)

		return r;



	r = dssdev->driver->set_mirror(dssdev, mirror);

	if (r)

		return r;



	return size;

}



static ssize_t display_wss_show(struct device *dev,

		struct device_attribute *attr, char *buf)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	unsigned int wss;



	if (!dssdev->driver->get_wss)

		return -ENOENT;



	wss = dssdev->driver->get_wss(dssdev);



	return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);

}



static ssize_t display_wss_store(struct device *dev,

		struct device_attribute *attr, const char *buf, size_t size)

{

	struct omap_dss_device *dssdev = to_dss_device(dev);

	u32 wss;

	int r;



	if (!dssdev->driver->get_wss || !dssdev->driver->set_wss)

		return -ENOENT;



	r = kstrtou32(buf, 0, &wss);

	if (r)

		return r;



	if (wss > 0xfffff)

		return -EINVAL;



	r = dssdev->driver->set_wss(dssdev, wss);

	if (r)

		return r;



	return size;

}



static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,

		display_enabled_show, display_enabled_store);

static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,

		display_tear_show, display_tear_store);

static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,

		display_timings_show, display_timings_store);

static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,

		display_rotate_show, display_rotate_store);

static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,

		display_mirror_show, display_mirror_store);

static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,

		display_wss_show, display_wss_store);



static struct device_attribute *display_sysfs_attrs[] = {

	&dev_attr_enabled,

	&dev_attr_tear_elim,

	&dev_attr_timings,

	&dev_attr_rotate,

	&dev_attr_mirror,

	&dev_attr_wss,

	NULL

};



void omapdss_default_get_resolution(struct omap_dss_device *dssdev,

			u16 *xres, u16 *yres)

{
@@ -323,9 +79,8 @@ EXPORT_SYMBOL(omapdss_default_get_timings); 
int dss_init_device(struct platform_device *pdev,

		struct omap_dss_device *dssdev)

{

	struct device_attribute *attr;

	struct omap_dss_output *out;

	int i, r;

	int r;



	out = omapdss_get_output_from_dssdev(dssdev);
@@ -335,33 +90,9 @@ int dss_init_device(struct platform_device *pdev, 
		return r;

	}



	/* create device sysfs files */

	i = 0;

	while ((attr = display_sysfs_attrs[i++]) != NULL) {

		r = device_create_file(&dssdev->dev, attr);

	r = display_init_sysfs(pdev, dssdev);

	if (r) {

			for (i = i - 2; i >= 0; i--) {

				attr = display_sysfs_attrs[i];

				device_remove_file(&dssdev->dev, attr);

			}



		omapdss_output_unset_device(dssdev->output);



			DSSERR("failed to create sysfs file\n");

			return r;

		}

	}



	/* create display? sysfs links */

	r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,

			dev_name(&dssdev->dev));

	if (r) {

		while ((attr = display_sysfs_attrs[i++]) != NULL)

			device_remove_file(&dssdev->dev, attr);



		omapdss_output_unset_device(dssdev->output);



		DSSERR("failed to create sysfs display link\n");

		return r;

	}
@@ -371,13 +102,7 @@ int dss_init_device(struct platform_device *pdev, 
void dss_uninit_device(struct platform_device *pdev,

		struct omap_dss_device *dssdev)

{

	struct device_attribute *attr;

	int i = 0;



	sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev));



	while ((attr = display_sysfs_attrs[i++]) != NULL)

		device_remove_file(&dssdev->dev, attr);

	display_uninit_sysfs(pdev, dssdev);



	if (dssdev->output)

		omapdss_output_unset_device(dssdev->output);

drivers/video/omap2/dss/dss.h

+5 −0
Original line number Diff line number Diff line
@@ -224,6 +224,11 @@ int dss_init_device(struct platform_device *pdev, 
void dss_uninit_device(struct platform_device *pdev,

		struct omap_dss_device *dssdev);



int display_init_sysfs(struct platform_device *pdev,

		struct omap_dss_device *dssdev);

void display_uninit_sysfs(struct platform_device *pdev,

		struct omap_dss_device *dssdev);



/* manager */

int dss_init_overlay_managers(struct platform_device *pdev);

void dss_uninit_overlay_managers(struct platform_device *pdev);