[14/32] OMAPDSS: create display-sysfs.c

Message ID	1352995120-3288-15-git-send-email-tomi.valkeinen@ti.com (mailing list archive)
State	New, archived
Headers	show Return-Path: <linux-fbdev-owner@vger.kernel.org> From: Tomi Valkeinen <tomi.valkeinen@ti.com> To: Archit Taneja <archit@ti.com>, Rob Clark <rob@ti.com> CC: <linux-omap@vger.kernel.org>, <linux-fbdev@vger.kernel.org>, Tomi Valkeinen <tomi.valkeinen@ti.com> Subject: [PATCH 14/32] OMAPDSS: create display-sysfs.c Date: Thu, 15 Nov 2012 17:58:22 +0200 Message-ID: <1352995120-3288-15-git-send-email-tomi.valkeinen@ti.com> In-Reply-To: <1352995120-3288-1-git-send-email-tomi.valkeinen@ti.com> References: <1352995120-3288-1-git-send-email-tomi.valkeinen@ti.com> MIME-Version: 1.0 Content-Type: text/plain Sender: linux-fbdev-owner@vger.kernel.org Precedence: bulk

diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile index 4070191..af866d0 100644 --- a/drivers/video/omap2/dss/Makefile +++ b/drivers/video/omap2/dss/Makefile @@ -1,6 +1,7 @@ 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 diff --git a/drivers/video/omap2/dss/display-sysfs.c b/drivers/video/omap2/dss/display-sysfs.c new file mode 100644 index 0000000..18211a9 --- /dev/null +++ b/drivers/video/omap2/dss/display-sysfs.c @@ -0,0 +1,321 @@ +/* + * 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); +} diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c index 6d33112..008e9ee 100644 --- a/drivers/video/omap2/dss/display.c +++ b/drivers/video/omap2/dss/display.c @@ -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); - 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)); + r = display_init_sysfs(pdev, dssdev); 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); diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index 09d0651..6c3cfb33 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -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);

[14/32] OMAPDSS: create display-sysfs.c

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