mirror of https://gitee.com/openkylin/linux.git
OMAP: DSS2: Add more core files
Add more core files to DSS2. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Tomi Valkeinen
parent
559d670189
commit
eed07e0ed5
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@ -0,0 +1,671 @@
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/*
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* linux/drivers/video/omap2/dss/display.c
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*
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* Copyright (C) 2009 Nokia Corporation
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* Author: Tomi Valkeinen <tomi.valkeinen@nokia.com>
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*
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* Some code and ideas taken from drivers/video/omap/ driver
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* by Imre Deak.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License version 2 as published by
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* the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#define DSS_SUBSYS_NAME "DISPLAY"
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/jiffies.h>
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#include <linux/list.h>
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#include <linux/platform_device.h>
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#include <plat/display.h>
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#include "dss.h"
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static LIST_HEAD(display_list);
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static ssize_t display_enabled_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED;
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return snprintf(buf, PAGE_SIZE, "%d\n", enabled);
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}
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static ssize_t display_enabled_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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bool enabled, r;
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enabled = simple_strtoul(buf, NULL, 10);
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if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) {
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if (enabled) {
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r = dssdev->enable(dssdev);
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if (r)
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return r;
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} else {
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dssdev->disable(dssdev);
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}
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}
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return size;
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}
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static ssize_t display_upd_mode_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO;
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if (dssdev->get_update_mode)
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mode = dssdev->get_update_mode(dssdev);
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return snprintf(buf, PAGE_SIZE, "%d\n", mode);
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}
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static ssize_t display_upd_mode_store(struct device *dev,
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struct device_attribute *attr,
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const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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int val, r;
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enum omap_dss_update_mode mode;
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val = simple_strtoul(buf, NULL, 10);
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switch (val) {
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case OMAP_DSS_UPDATE_DISABLED:
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case OMAP_DSS_UPDATE_AUTO:
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case OMAP_DSS_UPDATE_MANUAL:
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mode = (enum omap_dss_update_mode)val;
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break;
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default:
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return -EINVAL;
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}
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r = dssdev->set_update_mode(dssdev, mode);
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if (r)
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return r;
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return size;
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}
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static ssize_t display_tear_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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return snprintf(buf, PAGE_SIZE, "%d\n",
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dssdev->get_te ? dssdev->get_te(dssdev) : 0);
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}
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static ssize_t display_tear_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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unsigned long te;
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int r;
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if (!dssdev->enable_te || !dssdev->get_te)
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return -ENOENT;
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te = simple_strtoul(buf, NULL, 0);
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r = dssdev->enable_te(dssdev, te);
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if (r)
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return r;
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return size;
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}
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static ssize_t display_timings_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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struct omap_video_timings t;
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if (!dssdev->get_timings)
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return -ENOENT;
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dssdev->get_timings(dssdev, &t);
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return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n",
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t.pixel_clock,
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t.x_res, t.hfp, t.hbp, t.hsw,
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t.y_res, t.vfp, t.vbp, t.vsw);
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}
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static ssize_t display_timings_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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struct omap_video_timings t;
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int r, found;
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if (!dssdev->set_timings || !dssdev->check_timings)
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return -ENOENT;
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found = 0;
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#ifdef CONFIG_OMAP2_DSS_VENC
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if (strncmp("pal", buf, 3) == 0) {
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t = omap_dss_pal_timings;
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found = 1;
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} else if (strncmp("ntsc", buf, 4) == 0) {
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t = omap_dss_ntsc_timings;
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found = 1;
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}
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#endif
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if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu",
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&t.pixel_clock,
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&t.x_res, &t.hfp, &t.hbp, &t.hsw,
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&t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9)
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return -EINVAL;
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r = dssdev->check_timings(dssdev, &t);
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if (r)
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return r;
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dssdev->set_timings(dssdev, &t);
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return size;
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}
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static ssize_t display_rotate_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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int rotate;
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if (!dssdev->get_rotate)
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return -ENOENT;
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rotate = dssdev->get_rotate(dssdev);
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return snprintf(buf, PAGE_SIZE, "%u\n", rotate);
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}
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static ssize_t display_rotate_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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unsigned long rot;
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int r;
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if (!dssdev->set_rotate || !dssdev->get_rotate)
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return -ENOENT;
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rot = simple_strtoul(buf, NULL, 0);
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r = dssdev->set_rotate(dssdev, rot);
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if (r)
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return r;
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return size;
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}
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static ssize_t display_mirror_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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int mirror;
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if (!dssdev->get_mirror)
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return -ENOENT;
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mirror = dssdev->get_mirror(dssdev);
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return snprintf(buf, PAGE_SIZE, "%u\n", mirror);
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}
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static ssize_t display_mirror_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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unsigned long mirror;
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int r;
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if (!dssdev->set_mirror || !dssdev->get_mirror)
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return -ENOENT;
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mirror = simple_strtoul(buf, NULL, 0);
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r = dssdev->set_mirror(dssdev, mirror);
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if (r)
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return r;
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return size;
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}
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static ssize_t display_wss_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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unsigned int wss;
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if (!dssdev->get_wss)
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return -ENOENT;
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wss = dssdev->get_wss(dssdev);
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return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss);
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}
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static ssize_t display_wss_store(struct device *dev,
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struct device_attribute *attr, const char *buf, size_t size)
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{
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struct omap_dss_device *dssdev = to_dss_device(dev);
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unsigned long wss;
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int r;
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if (!dssdev->get_wss || !dssdev->set_wss)
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return -ENOENT;
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if (strict_strtoul(buf, 0, &wss))
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return -EINVAL;
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if (wss > 0xfffff)
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return -EINVAL;
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r = dssdev->set_wss(dssdev, wss);
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if (r)
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return r;
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return size;
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}
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static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR,
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display_enabled_show, display_enabled_store);
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static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR,
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display_upd_mode_show, display_upd_mode_store);
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static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR,
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display_tear_show, display_tear_store);
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static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR,
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display_timings_show, display_timings_store);
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static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR,
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display_rotate_show, display_rotate_store);
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static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR,
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display_mirror_show, display_mirror_store);
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static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR,
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display_wss_show, display_wss_store);
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static struct device_attribute *display_sysfs_attrs[] = {
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&dev_attr_enabled,
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&dev_attr_update_mode,
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&dev_attr_tear_elim,
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&dev_attr_timings,
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&dev_attr_rotate,
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&dev_attr_mirror,
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&dev_attr_wss,
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NULL
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};
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static void default_get_resolution(struct omap_dss_device *dssdev,
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u16 *xres, u16 *yres)
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{
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*xres = dssdev->panel.timings.x_res;
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*yres = dssdev->panel.timings.y_res;
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}
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void default_get_overlay_fifo_thresholds(enum omap_plane plane,
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u32 fifo_size, enum omap_burst_size *burst_size,
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u32 *fifo_low, u32 *fifo_high)
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{
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unsigned burst_size_bytes;
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*burst_size = OMAP_DSS_BURST_16x32;
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burst_size_bytes = 16 * 32 / 8;
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*fifo_high = fifo_size - 1;
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*fifo_low = fifo_size - burst_size_bytes;
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}
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static int default_wait_vsync(struct omap_dss_device *dssdev)
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{
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unsigned long timeout = msecs_to_jiffies(500);
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u32 irq;
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if (dssdev->type == OMAP_DISPLAY_TYPE_VENC)
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irq = DISPC_IRQ_EVSYNC_ODD;
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else
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irq = DISPC_IRQ_VSYNC;
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return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
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}
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static int default_get_recommended_bpp(struct omap_dss_device *dssdev)
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{
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if (dssdev->panel.recommended_bpp)
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return dssdev->panel.recommended_bpp;
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switch (dssdev->type) {
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case OMAP_DISPLAY_TYPE_DPI:
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if (dssdev->phy.dpi.data_lines == 24)
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return 24;
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else
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return 16;
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case OMAP_DISPLAY_TYPE_DBI:
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case OMAP_DISPLAY_TYPE_DSI:
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if (dssdev->ctrl.pixel_size == 24)
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return 24;
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else
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return 16;
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case OMAP_DISPLAY_TYPE_VENC:
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case OMAP_DISPLAY_TYPE_SDI:
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return 24;
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return 24;
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default:
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BUG();
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}
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}
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/* Checks if replication logic should be used. Only use for active matrix,
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* when overlay is in RGB12U or RGB16 mode, and LCD interface is
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* 18bpp or 24bpp */
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bool dss_use_replication(struct omap_dss_device *dssdev,
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enum omap_color_mode mode)
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{
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int bpp;
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if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16)
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return false;
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if (dssdev->type == OMAP_DISPLAY_TYPE_DPI &&
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(dssdev->panel.config & OMAP_DSS_LCD_TFT) == 0)
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return false;
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switch (dssdev->type) {
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case OMAP_DISPLAY_TYPE_DPI:
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bpp = dssdev->phy.dpi.data_lines;
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break;
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case OMAP_DISPLAY_TYPE_VENC:
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case OMAP_DISPLAY_TYPE_SDI:
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bpp = 24;
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break;
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case OMAP_DISPLAY_TYPE_DBI:
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case OMAP_DISPLAY_TYPE_DSI:
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bpp = dssdev->ctrl.pixel_size;
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break;
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default:
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BUG();
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}
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return bpp > 16;
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}
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void dss_init_device(struct platform_device *pdev,
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struct omap_dss_device *dssdev)
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{
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struct device_attribute *attr;
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int i;
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int r;
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switch (dssdev->type) {
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case OMAP_DISPLAY_TYPE_DPI:
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#ifdef CONFIG_OMAP2_DSS_RFBI
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case OMAP_DISPLAY_TYPE_DBI:
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#endif
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#ifdef CONFIG_OMAP2_DSS_SDI
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case OMAP_DISPLAY_TYPE_SDI:
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#endif
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#ifdef CONFIG_OMAP2_DSS_DSI
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case OMAP_DISPLAY_TYPE_DSI:
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#endif
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#ifdef CONFIG_OMAP2_DSS_VENC
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case OMAP_DISPLAY_TYPE_VENC:
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#endif
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break;
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default:
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DSSERR("Support for display '%s' not compiled in.\n",
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dssdev->name);
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return;
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}
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dssdev->get_resolution = default_get_resolution;
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dssdev->get_recommended_bpp = default_get_recommended_bpp;
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dssdev->wait_vsync = default_wait_vsync;
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switch (dssdev->type) {
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case OMAP_DISPLAY_TYPE_DPI:
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r = dpi_init_display(dssdev);
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break;
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#ifdef CONFIG_OMAP2_DSS_RFBI
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case OMAP_DISPLAY_TYPE_DBI:
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r = rfbi_init_display(dssdev);
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break;
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#endif
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#ifdef CONFIG_OMAP2_DSS_VENC
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case OMAP_DISPLAY_TYPE_VENC:
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r = venc_init_display(dssdev);
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break;
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#endif
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#ifdef CONFIG_OMAP2_DSS_SDI
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case OMAP_DISPLAY_TYPE_SDI:
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r = sdi_init_display(dssdev);
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break;
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#endif
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#ifdef CONFIG_OMAP2_DSS_DSI
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case OMAP_DISPLAY_TYPE_DSI:
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r = dsi_init_display(dssdev);
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break;
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#endif
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default:
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BUG();
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}
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if (r) {
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DSSERR("failed to init display %s\n", dssdev->name);
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return;
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}
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/* create device sysfs files */
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i = 0;
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while ((attr = display_sysfs_attrs[i++]) != NULL) {
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r = device_create_file(&dssdev->dev, attr);
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if (r)
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DSSERR("failed to create sysfs file\n");
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}
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/* create display? sysfs links */
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r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj,
|
||||
dev_name(&dssdev->dev));
|
||||
if (r)
|
||||
DSSERR("failed to create sysfs display link\n");
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
if (dssdev->manager)
|
||||
dssdev->manager->unset_device(dssdev->manager);
|
||||
}
|
||||
|
||||
static int dss_suspend_device(struct device *dev, void *data)
|
||||
{
|
||||
int r;
|
||||
struct omap_dss_device *dssdev = to_dss_device(dev);
|
||||
|
||||
if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
|
||||
dssdev->activate_after_resume = false;
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (!dssdev->suspend) {
|
||||
DSSERR("display '%s' doesn't implement suspend\n",
|
||||
dssdev->name);
|
||||
return -ENOSYS;
|
||||
}
|
||||
|
||||
r = dssdev->suspend(dssdev);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
dssdev->activate_after_resume = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int dss_suspend_all_devices(void)
|
||||
{
|
||||
int r;
|
||||
struct bus_type *bus = dss_get_bus();
|
||||
|
||||
r = bus_for_each_dev(bus, NULL, NULL, dss_suspend_device);
|
||||
if (r) {
|
||||
/* resume all displays that were suspended */
|
||||
dss_resume_all_devices();
|
||||
return r;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dss_resume_device(struct device *dev, void *data)
|
||||
{
|
||||
int r;
|
||||
struct omap_dss_device *dssdev = to_dss_device(dev);
|
||||
|
||||
if (dssdev->activate_after_resume && dssdev->resume) {
|
||||
r = dssdev->resume(dssdev);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
dssdev->activate_after_resume = false;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int dss_resume_all_devices(void)
|
||||
{
|
||||
struct bus_type *bus = dss_get_bus();
|
||||
|
||||
return bus_for_each_dev(bus, NULL, NULL, dss_resume_device);
|
||||
}
|
||||
|
||||
static int dss_disable_device(struct device *dev, void *data)
|
||||
{
|
||||
struct omap_dss_device *dssdev = to_dss_device(dev);
|
||||
dssdev->disable(dssdev);
|
||||
return 0;
|
||||
}
|
||||
|
||||
void dss_disable_all_devices(void)
|
||||
{
|
||||
struct bus_type *bus = dss_get_bus();
|
||||
bus_for_each_dev(bus, NULL, NULL, dss_disable_device);
|
||||
}
|
||||
|
||||
|
||||
void omap_dss_get_device(struct omap_dss_device *dssdev)
|
||||
{
|
||||
get_device(&dssdev->dev);
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_get_device);
|
||||
|
||||
void omap_dss_put_device(struct omap_dss_device *dssdev)
|
||||
{
|
||||
put_device(&dssdev->dev);
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_put_device);
|
||||
|
||||
/* ref count of the found device is incremented. ref count
|
||||
* of from-device is decremented. */
|
||||
struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from)
|
||||
{
|
||||
struct device *dev;
|
||||
struct device *dev_start = NULL;
|
||||
struct omap_dss_device *dssdev = NULL;
|
||||
|
||||
int match(struct device *dev, void *data)
|
||||
{
|
||||
/* skip panels connected to controllers */
|
||||
if (to_dss_device(dev)->panel.ctrl)
|
||||
return 0;
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
if (from)
|
||||
dev_start = &from->dev;
|
||||
dev = bus_find_device(dss_get_bus(), dev_start, NULL, match);
|
||||
if (dev)
|
||||
dssdev = to_dss_device(dev);
|
||||
if (from)
|
||||
put_device(&from->dev);
|
||||
|
||||
return dssdev;
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_get_next_device);
|
||||
|
||||
struct omap_dss_device *omap_dss_find_device(void *data,
|
||||
int (*match)(struct omap_dss_device *dssdev, void *data))
|
||||
{
|
||||
struct omap_dss_device *dssdev = NULL;
|
||||
|
||||
while ((dssdev = omap_dss_get_next_device(dssdev)) != NULL) {
|
||||
if (match(dssdev, data))
|
||||
return dssdev;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_find_device);
|
||||
|
||||
int omap_dss_start_device(struct omap_dss_device *dssdev)
|
||||
{
|
||||
int r;
|
||||
|
||||
if (!dssdev->driver) {
|
||||
DSSDBG("no driver\n");
|
||||
r = -ENODEV;
|
||||
goto err0;
|
||||
}
|
||||
|
||||
if (dssdev->ctrl.panel && !dssdev->ctrl.panel->driver) {
|
||||
DSSDBG("no panel driver\n");
|
||||
r = -ENODEV;
|
||||
goto err0;
|
||||
}
|
||||
|
||||
if (!try_module_get(dssdev->dev.driver->owner)) {
|
||||
r = -ENODEV;
|
||||
goto err0;
|
||||
}
|
||||
|
||||
if (dssdev->ctrl.panel) {
|
||||
if (!try_module_get(dssdev->ctrl.panel->dev.driver->owner)) {
|
||||
r = -ENODEV;
|
||||
goto err1;
|
||||
}
|
||||
}
|
||||
|
||||
return 0;
|
||||
err1:
|
||||
module_put(dssdev->dev.driver->owner);
|
||||
err0:
|
||||
return r;
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_start_device);
|
||||
|
||||
void omap_dss_stop_device(struct omap_dss_device *dssdev)
|
||||
{
|
||||
if (dssdev->ctrl.panel)
|
||||
module_put(dssdev->ctrl.panel->dev.driver->owner);
|
||||
|
||||
module_put(dssdev->dev.driver->owner);
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_stop_device);
|
||||
|
||||
File diff suppressed because it is too large
Load Diff
|
|
@ -0,0 +1,680 @@
|
|||
/*
|
||||
* linux/drivers/video/omap2/dss/overlay.c
|
||||
*
|
||||
* 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 "OVERLAY"
|
||||
|
||||
#include <linux/kernel.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/sysfs.h>
|
||||
#include <linux/kobject.h>
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/delay.h>
|
||||
|
||||
#include <plat/display.h>
|
||||
#include <plat/cpu.h>
|
||||
|
||||
#include "dss.h"
|
||||
|
||||
static int num_overlays;
|
||||
static struct list_head overlay_list;
|
||||
|
||||
static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name);
|
||||
}
|
||||
|
||||
static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%s\n",
|
||||
ovl->manager ? ovl->manager->name : "<none>");
|
||||
}
|
||||
|
||||
static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf,
|
||||
size_t size)
|
||||
{
|
||||
int i, r;
|
||||
struct omap_overlay_manager *mgr = NULL;
|
||||
struct omap_overlay_manager *old_mgr;
|
||||
int len = size;
|
||||
|
||||
if (buf[size-1] == '\n')
|
||||
--len;
|
||||
|
||||
if (len > 0) {
|
||||
for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) {
|
||||
mgr = omap_dss_get_overlay_manager(i);
|
||||
|
||||
if (strncmp(buf, mgr->name, len) == 0)
|
||||
break;
|
||||
|
||||
mgr = NULL;
|
||||
}
|
||||
}
|
||||
|
||||
if (len > 0 && mgr == NULL)
|
||||
return -EINVAL;
|
||||
|
||||
if (mgr)
|
||||
DSSDBG("manager %s found\n", mgr->name);
|
||||
|
||||
if (mgr == ovl->manager)
|
||||
return size;
|
||||
|
||||
old_mgr = ovl->manager;
|
||||
|
||||
/* detach old manager */
|
||||
if (old_mgr) {
|
||||
r = ovl->unset_manager(ovl);
|
||||
if (r) {
|
||||
DSSERR("detach failed\n");
|
||||
return r;
|
||||
}
|
||||
|
||||
r = old_mgr->apply(old_mgr);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
if (mgr) {
|
||||
r = ovl->set_manager(ovl, mgr);
|
||||
if (r) {
|
||||
DSSERR("Failed to attach overlay\n");
|
||||
return r;
|
||||
}
|
||||
|
||||
r = mgr->apply(mgr);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%d,%d\n",
|
||||
ovl->info.width, ovl->info.height);
|
||||
}
|
||||
|
||||
static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width);
|
||||
}
|
||||
|
||||
static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%d,%d\n",
|
||||
ovl->info.pos_x, ovl->info.pos_y);
|
||||
}
|
||||
|
||||
static ssize_t overlay_position_store(struct omap_overlay *ovl,
|
||||
const char *buf, size_t size)
|
||||
{
|
||||
int r;
|
||||
char *last;
|
||||
struct omap_overlay_info info;
|
||||
|
||||
ovl->get_overlay_info(ovl, &info);
|
||||
|
||||
info.pos_x = simple_strtoul(buf, &last, 10);
|
||||
++last;
|
||||
if (last - buf >= size)
|
||||
return -EINVAL;
|
||||
|
||||
info.pos_y = simple_strtoul(last, &last, 10);
|
||||
|
||||
r = ovl->set_overlay_info(ovl, &info);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
if (ovl->manager) {
|
||||
r = ovl->manager->apply(ovl->manager);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%d,%d\n",
|
||||
ovl->info.out_width, ovl->info.out_height);
|
||||
}
|
||||
|
||||
static ssize_t overlay_output_size_store(struct omap_overlay *ovl,
|
||||
const char *buf, size_t size)
|
||||
{
|
||||
int r;
|
||||
char *last;
|
||||
struct omap_overlay_info info;
|
||||
|
||||
ovl->get_overlay_info(ovl, &info);
|
||||
|
||||
info.out_width = simple_strtoul(buf, &last, 10);
|
||||
++last;
|
||||
if (last - buf >= size)
|
||||
return -EINVAL;
|
||||
|
||||
info.out_height = simple_strtoul(last, &last, 10);
|
||||
|
||||
r = ovl->set_overlay_info(ovl, &info);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
if (ovl->manager) {
|
||||
r = ovl->manager->apply(ovl->manager);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled);
|
||||
}
|
||||
|
||||
static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
|
||||
size_t size)
|
||||
{
|
||||
int r;
|
||||
struct omap_overlay_info info;
|
||||
|
||||
ovl->get_overlay_info(ovl, &info);
|
||||
|
||||
info.enabled = simple_strtoul(buf, NULL, 10);
|
||||
|
||||
r = ovl->set_overlay_info(ovl, &info);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
if (ovl->manager) {
|
||||
r = ovl->manager->apply(ovl->manager);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf)
|
||||
{
|
||||
return snprintf(buf, PAGE_SIZE, "%d\n",
|
||||
ovl->info.global_alpha);
|
||||
}
|
||||
|
||||
static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
|
||||
const char *buf, size_t size)
|
||||
{
|
||||
int r;
|
||||
struct omap_overlay_info info;
|
||||
|
||||
ovl->get_overlay_info(ovl, &info);
|
||||
|
||||
/* Video1 plane does not support global alpha
|
||||
* to always make it 255 completely opaque
|
||||
*/
|
||||
if (ovl->id == OMAP_DSS_VIDEO1)
|
||||
info.global_alpha = 255;
|
||||
else
|
||||
info.global_alpha = simple_strtoul(buf, NULL, 10);
|
||||
|
||||
r = ovl->set_overlay_info(ovl, &info);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
if (ovl->manager) {
|
||||
r = ovl->manager->apply(ovl->manager);
|
||||
if (r)
|
||||
return r;
|
||||
}
|
||||
|
||||
return size;
|
||||
}
|
||||
|
||||
struct overlay_attribute {
|
||||
struct attribute attr;
|
||||
ssize_t (*show)(struct omap_overlay *, char *);
|
||||
ssize_t (*store)(struct omap_overlay *, const char *, size_t);
|
||||
};
|
||||
|
||||
#define OVERLAY_ATTR(_name, _mode, _show, _store) \
|
||||
struct overlay_attribute overlay_attr_##_name = \
|
||||
__ATTR(_name, _mode, _show, _store)
|
||||
|
||||
static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL);
|
||||
static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR,
|
||||
overlay_manager_show, overlay_manager_store);
|
||||
static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL);
|
||||
static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL);
|
||||
static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR,
|
||||
overlay_position_show, overlay_position_store);
|
||||
static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR,
|
||||
overlay_output_size_show, overlay_output_size_store);
|
||||
static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR,
|
||||
overlay_enabled_show, overlay_enabled_store);
|
||||
static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR,
|
||||
overlay_global_alpha_show, overlay_global_alpha_store);
|
||||
|
||||
static struct attribute *overlay_sysfs_attrs[] = {
|
||||
&overlay_attr_name.attr,
|
||||
&overlay_attr_manager.attr,
|
||||
&overlay_attr_input_size.attr,
|
||||
&overlay_attr_screen_width.attr,
|
||||
&overlay_attr_position.attr,
|
||||
&overlay_attr_output_size.attr,
|
||||
&overlay_attr_enabled.attr,
|
||||
&overlay_attr_global_alpha.attr,
|
||||
NULL
|
||||
};
|
||||
|
||||
static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr,
|
||||
char *buf)
|
||||
{
|
||||
struct omap_overlay *overlay;
|
||||
struct overlay_attribute *overlay_attr;
|
||||
|
||||
overlay = container_of(kobj, struct omap_overlay, kobj);
|
||||
overlay_attr = container_of(attr, struct overlay_attribute, attr);
|
||||
|
||||
if (!overlay_attr->show)
|
||||
return -ENOENT;
|
||||
|
||||
return overlay_attr->show(overlay, buf);
|
||||
}
|
||||
|
||||
static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr,
|
||||
const char *buf, size_t size)
|
||||
{
|
||||
struct omap_overlay *overlay;
|
||||
struct overlay_attribute *overlay_attr;
|
||||
|
||||
overlay = container_of(kobj, struct omap_overlay, kobj);
|
||||
overlay_attr = container_of(attr, struct overlay_attribute, attr);
|
||||
|
||||
if (!overlay_attr->store)
|
||||
return -ENOENT;
|
||||
|
||||
return overlay_attr->store(overlay, buf, size);
|
||||
}
|
||||
|
||||
static struct sysfs_ops overlay_sysfs_ops = {
|
||||
.show = overlay_attr_show,
|
||||
.store = overlay_attr_store,
|
||||
};
|
||||
|
||||
static struct kobj_type overlay_ktype = {
|
||||
.sysfs_ops = &overlay_sysfs_ops,
|
||||
.default_attrs = overlay_sysfs_attrs,
|
||||
};
|
||||
|
||||
/* Check if overlay parameters are compatible with display */
|
||||
int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev)
|
||||
{
|
||||
struct omap_overlay_info *info;
|
||||
u16 outw, outh;
|
||||
u16 dw, dh;
|
||||
|
||||
if (!dssdev)
|
||||
return 0;
|
||||
|
||||
if (!ovl->info.enabled)
|
||||
return 0;
|
||||
|
||||
info = &ovl->info;
|
||||
|
||||
if (info->paddr == 0) {
|
||||
DSSDBG("check_overlay failed: paddr 0\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
dssdev->get_resolution(dssdev, &dw, &dh);
|
||||
|
||||
DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n",
|
||||
ovl->id,
|
||||
info->pos_x, info->pos_y,
|
||||
info->width, info->height,
|
||||
info->out_width, info->out_height,
|
||||
dw, dh);
|
||||
|
||||
if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) {
|
||||
outw = info->width;
|
||||
outh = info->height;
|
||||
} else {
|
||||
if (info->out_width == 0)
|
||||
outw = info->width;
|
||||
else
|
||||
outw = info->out_width;
|
||||
|
||||
if (info->out_height == 0)
|
||||
outh = info->height;
|
||||
else
|
||||
outh = info->out_height;
|
||||
}
|
||||
|
||||
if (dw < info->pos_x + outw) {
|
||||
DSSDBG("check_overlay failed 1: %d < %d + %d\n",
|
||||
dw, info->pos_x, outw);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (dh < info->pos_y + outh) {
|
||||
DSSDBG("check_overlay failed 2: %d < %d + %d\n",
|
||||
dh, info->pos_y, outh);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if ((ovl->supported_modes & info->color_mode) == 0) {
|
||||
DSSERR("overlay doesn't support mode %d\n", info->color_mode);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int dss_ovl_set_overlay_info(struct omap_overlay *ovl,
|
||||
struct omap_overlay_info *info)
|
||||
{
|
||||
int r;
|
||||
struct omap_overlay_info old_info;
|
||||
|
||||
old_info = ovl->info;
|
||||
ovl->info = *info;
|
||||
|
||||
if (ovl->manager) {
|
||||
r = dss_check_overlay(ovl, ovl->manager->device);
|
||||
if (r) {
|
||||
ovl->info = old_info;
|
||||
return r;
|
||||
}
|
||||
}
|
||||
|
||||
ovl->info_dirty = true;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static void dss_ovl_get_overlay_info(struct omap_overlay *ovl,
|
||||
struct omap_overlay_info *info)
|
||||
{
|
||||
*info = ovl->info;
|
||||
}
|
||||
|
||||
static int dss_ovl_wait_for_go(struct omap_overlay *ovl)
|
||||
{
|
||||
return dss_mgr_wait_for_go_ovl(ovl);
|
||||
}
|
||||
|
||||
static int omap_dss_set_manager(struct omap_overlay *ovl,
|
||||
struct omap_overlay_manager *mgr)
|
||||
{
|
||||
if (!mgr)
|
||||
return -EINVAL;
|
||||
|
||||
if (ovl->manager) {
|
||||
DSSERR("overlay '%s' already has a manager '%s'\n",
|
||||
ovl->name, ovl->manager->name);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (ovl->info.enabled) {
|
||||
DSSERR("overlay has to be disabled to change the manager\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
ovl->manager = mgr;
|
||||
|
||||
dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
|
||||
/* XXX: on manual update display, in auto update mode, a bug happens
|
||||
* here. When an overlay is first enabled on LCD, then it's disabled,
|
||||
* and the manager is changed to TV, we sometimes get SYNC_LOST_DIGIT
|
||||
* errors. Waiting before changing the channel_out fixes it. I'm
|
||||
* guessing that the overlay is still somehow being used for the LCD,
|
||||
* but I don't understand how or why. */
|
||||
msleep(40);
|
||||
dispc_set_channel_out(ovl->id, mgr->id);
|
||||
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int omap_dss_unset_manager(struct omap_overlay *ovl)
|
||||
{
|
||||
int r;
|
||||
|
||||
if (!ovl->manager) {
|
||||
DSSERR("failed to detach overlay: manager not set\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
if (ovl->info.enabled) {
|
||||
DSSERR("overlay has to be disabled to unset the manager\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
r = ovl->wait_for_go(ovl);
|
||||
if (r)
|
||||
return r;
|
||||
|
||||
ovl->manager = NULL;
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
int omap_dss_get_num_overlays(void)
|
||||
{
|
||||
return num_overlays;
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_get_num_overlays);
|
||||
|
||||
struct omap_overlay *omap_dss_get_overlay(int num)
|
||||
{
|
||||
int i = 0;
|
||||
struct omap_overlay *ovl;
|
||||
|
||||
list_for_each_entry(ovl, &overlay_list, list) {
|
||||
if (i++ == num)
|
||||
return ovl;
|
||||
}
|
||||
|
||||
return NULL;
|
||||
}
|
||||
EXPORT_SYMBOL(omap_dss_get_overlay);
|
||||
|
||||
static void omap_dss_add_overlay(struct omap_overlay *overlay)
|
||||
{
|
||||
++num_overlays;
|
||||
list_add_tail(&overlay->list, &overlay_list);
|
||||
}
|
||||
|
||||
static struct omap_overlay *dispc_overlays[3];
|
||||
|
||||
void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr)
|
||||
{
|
||||
mgr->num_overlays = 3;
|
||||
mgr->overlays = dispc_overlays;
|
||||
}
|
||||
|
||||
#ifdef L4_EXAMPLE
|
||||
static struct omap_overlay *l4_overlays[1];
|
||||
void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr)
|
||||
{
|
||||
mgr->num_overlays = 1;
|
||||
mgr->overlays = l4_overlays;
|
||||
}
|
||||
#endif
|
||||
|
||||
void dss_init_overlays(struct platform_device *pdev)
|
||||
{
|
||||
int i, r;
|
||||
|
||||
INIT_LIST_HEAD(&overlay_list);
|
||||
|
||||
num_overlays = 0;
|
||||
|
||||
for (i = 0; i < 3; ++i) {
|
||||
struct omap_overlay *ovl;
|
||||
ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
|
||||
|
||||
BUG_ON(ovl == NULL);
|
||||
|
||||
switch (i) {
|
||||
case 0:
|
||||
ovl->name = "gfx";
|
||||
ovl->id = OMAP_DSS_GFX;
|
||||
ovl->supported_modes = cpu_is_omap34xx() ?
|
||||
OMAP_DSS_COLOR_GFX_OMAP3 :
|
||||
OMAP_DSS_COLOR_GFX_OMAP2;
|
||||
ovl->caps = OMAP_DSS_OVL_CAP_DISPC;
|
||||
ovl->info.global_alpha = 255;
|
||||
break;
|
||||
case 1:
|
||||
ovl->name = "vid1";
|
||||
ovl->id = OMAP_DSS_VIDEO1;
|
||||
ovl->supported_modes = cpu_is_omap34xx() ?
|
||||
OMAP_DSS_COLOR_VID1_OMAP3 :
|
||||
OMAP_DSS_COLOR_VID_OMAP2;
|
||||
ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
|
||||
OMAP_DSS_OVL_CAP_DISPC;
|
||||
ovl->info.global_alpha = 255;
|
||||
break;
|
||||
case 2:
|
||||
ovl->name = "vid2";
|
||||
ovl->id = OMAP_DSS_VIDEO2;
|
||||
ovl->supported_modes = cpu_is_omap34xx() ?
|
||||
OMAP_DSS_COLOR_VID2_OMAP3 :
|
||||
OMAP_DSS_COLOR_VID_OMAP2;
|
||||
ovl->caps = OMAP_DSS_OVL_CAP_SCALE |
|
||||
OMAP_DSS_OVL_CAP_DISPC;
|
||||
ovl->info.global_alpha = 255;
|
||||
break;
|
||||
}
|
||||
|
||||
ovl->set_manager = &omap_dss_set_manager;
|
||||
ovl->unset_manager = &omap_dss_unset_manager;
|
||||
ovl->set_overlay_info = &dss_ovl_set_overlay_info;
|
||||
ovl->get_overlay_info = &dss_ovl_get_overlay_info;
|
||||
ovl->wait_for_go = &dss_ovl_wait_for_go;
|
||||
|
||||
omap_dss_add_overlay(ovl);
|
||||
|
||||
r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
|
||||
&pdev->dev.kobj, "overlay%d", i);
|
||||
|
||||
if (r) {
|
||||
DSSERR("failed to create sysfs file\n");
|
||||
continue;
|
||||
}
|
||||
|
||||
dispc_overlays[i] = ovl;
|
||||
}
|
||||
|
||||
#ifdef L4_EXAMPLE
|
||||
{
|
||||
struct omap_overlay *ovl;
|
||||
ovl = kzalloc(sizeof(*ovl), GFP_KERNEL);
|
||||
|
||||
BUG_ON(ovl == NULL);
|
||||
|
||||
ovl->name = "l4";
|
||||
ovl->supported_modes = OMAP_DSS_COLOR_RGB24U;
|
||||
|
||||
ovl->set_manager = &omap_dss_set_manager;
|
||||
ovl->unset_manager = &omap_dss_unset_manager;
|
||||
ovl->set_overlay_info = &dss_ovl_set_overlay_info;
|
||||
ovl->get_overlay_info = &dss_ovl_get_overlay_info;
|
||||
|
||||
omap_dss_add_overlay(ovl);
|
||||
|
||||
r = kobject_init_and_add(&ovl->kobj, &overlay_ktype,
|
||||
&pdev->dev.kobj, "overlayl4");
|
||||
|
||||
if (r)
|
||||
DSSERR("failed to create sysfs file\n");
|
||||
|
||||
l4_overlays[0] = ovl;
|
||||
}
|
||||
#endif
|
||||
}
|
||||
|
||||
/* connect overlays to the new device, if not already connected. if force
|
||||
* selected, connect always. */
|
||||
void dss_recheck_connections(struct omap_dss_device *dssdev, bool force)
|
||||
{
|
||||
int i;
|
||||
struct omap_overlay_manager *lcd_mgr;
|
||||
struct omap_overlay_manager *tv_mgr;
|
||||
struct omap_overlay_manager *mgr = NULL;
|
||||
|
||||
lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD);
|
||||
tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV);
|
||||
|
||||
if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) {
|
||||
if (!lcd_mgr->device || force) {
|
||||
if (lcd_mgr->device)
|
||||
lcd_mgr->unset_device(lcd_mgr);
|
||||
lcd_mgr->set_device(lcd_mgr, dssdev);
|
||||
mgr = lcd_mgr;
|
||||
}
|
||||
}
|
||||
|
||||
if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
|
||||
if (!tv_mgr->device || force) {
|
||||
if (tv_mgr->device)
|
||||
tv_mgr->unset_device(tv_mgr);
|
||||
tv_mgr->set_device(tv_mgr, dssdev);
|
||||
mgr = tv_mgr;
|
||||
}
|
||||
}
|
||||
|
||||
if (mgr) {
|
||||
for (i = 0; i < 3; i++) {
|
||||
struct omap_overlay *ovl;
|
||||
ovl = omap_dss_get_overlay(i);
|
||||
if (!ovl->manager || force) {
|
||||
if (ovl->manager)
|
||||
omap_dss_unset_manager(ovl);
|
||||
omap_dss_set_manager(ovl, mgr);
|
||||
}
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
void dss_uninit_overlays(struct platform_device *pdev)
|
||||
{
|
||||
struct omap_overlay *ovl;
|
||||
|
||||
while (!list_empty(&overlay_list)) {
|
||||
ovl = list_first_entry(&overlay_list,
|
||||
struct omap_overlay, list);
|
||||
list_del(&ovl->list);
|
||||
kobject_del(&ovl->kobj);
|
||||
kobject_put(&ovl->kobj);
|
||||
kfree(ovl);
|
||||
}
|
||||
|
||||
num_overlays = 0;
|
||||
}
|
||||
|
||||
Loading…
Reference in New Issue