mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-21 02:01:05 +07:00
947b225424
The display sysfs attribute's store function needs to be changed with the introduction of outputs. The DSS driver ensures that there is one display per output, and that a registered omap_dss_device will have an output connected to it. The display sysfs store function unsets the current output connected to the manager, and sets it with the output connected to the new display. If the new display doesn't have an output for some reason, we just bail out. The function doesn't set/unset output->device links. These remain the same as when the omap_dss_device was registered. Signed-off-by: Archit Taneja <archit@ti.com>
513 lines
11 KiB
C
513 lines
11 KiB
C
/*
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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 "MANAGER"
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/jiffies.h>
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#include <video/omapdss.h>
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#include "dss.h"
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#include "dss_features.h"
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static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
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{
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return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name);
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}
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static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
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{
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struct omap_dss_device *dssdev = mgr->get_device(mgr);
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return snprintf(buf, PAGE_SIZE, "%s\n", dssdev ?
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dssdev->name : "<none>");
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}
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static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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int r = 0;
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size_t len = size;
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struct omap_dss_device *dssdev = NULL;
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int match(struct omap_dss_device *dssdev, void *data)
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{
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const char *str = data;
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return sysfs_streq(dssdev->name, str);
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}
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if (buf[size-1] == '\n')
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--len;
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if (len > 0)
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dssdev = omap_dss_find_device((void *)buf, match);
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if (len > 0 && dssdev == NULL)
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return -EINVAL;
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if (dssdev)
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DSSDBG("display %s found\n", dssdev->name);
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if (mgr->output) {
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r = mgr->unset_output(mgr);
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if (r) {
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DSSERR("failed to unset current output\n");
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goto put_device;
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}
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}
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if (dssdev) {
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struct omap_dss_output *out = dssdev->output;
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/*
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* a registered device should have an output connected to it
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* already
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*/
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if (!out) {
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DSSERR("device has no output connected to it\n");
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goto put_device;
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}
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r = mgr->set_output(mgr, out);
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if (r) {
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DSSERR("failed to set manager output\n");
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goto put_device;
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}
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r = mgr->apply(mgr);
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if (r) {
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DSSERR("failed to apply dispc config\n");
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goto put_device;
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}
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}
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put_device:
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if (dssdev)
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omap_dss_put_device(dssdev);
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return r ? r : size;
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}
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static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
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char *buf)
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{
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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return snprintf(buf, PAGE_SIZE, "%#x\n", info.default_color);
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}
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static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager_info info;
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u32 color;
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int r;
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r = kstrtouint(buf, 0, &color);
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if (r)
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return r;
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mgr->get_manager_info(mgr, &info);
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info.default_color = color;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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 const char *trans_key_type_str[] = {
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"gfx-destination",
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"video-source",
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};
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static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
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char *buf)
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{
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enum omap_dss_trans_key_type key_type;
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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key_type = info.trans_key_type;
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BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
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return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
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}
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static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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enum omap_dss_trans_key_type key_type;
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struct omap_overlay_manager_info info;
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int r;
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for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
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key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
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if (sysfs_streq(buf, trans_key_type_str[key_type]))
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break;
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}
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if (key_type == ARRAY_SIZE(trans_key_type_str))
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return -EINVAL;
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mgr->get_manager_info(mgr, &info);
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info.trans_key_type = key_type;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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 manager_trans_key_value_show(struct omap_overlay_manager *mgr,
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char *buf)
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{
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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return snprintf(buf, PAGE_SIZE, "%#x\n", info.trans_key);
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}
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static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager_info info;
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u32 key_value;
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int r;
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r = kstrtouint(buf, 0, &key_value);
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if (r)
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return r;
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mgr->get_manager_info(mgr, &info);
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info.trans_key = key_value;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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 manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
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char *buf)
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{
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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return snprintf(buf, PAGE_SIZE, "%d\n", info.trans_enabled);
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}
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static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager_info info;
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bool enable;
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int r;
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r = strtobool(buf, &enable);
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if (r)
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return r;
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mgr->get_manager_info(mgr, &info);
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info.trans_enabled = enable;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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 manager_alpha_blending_enabled_show(
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struct omap_overlay_manager *mgr, char *buf)
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{
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
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return snprintf(buf, PAGE_SIZE, "%d\n",
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info.partial_alpha_enabled);
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}
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static ssize_t manager_alpha_blending_enabled_store(
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struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager_info info;
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bool enable;
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int r;
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WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
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r = strtobool(buf, &enable);
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if (r)
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return r;
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mgr->get_manager_info(mgr, &info);
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info.partial_alpha_enabled = enable;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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 manager_cpr_enable_show(struct omap_overlay_manager *mgr,
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char *buf)
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{
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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return snprintf(buf, PAGE_SIZE, "%d\n", info.cpr_enable);
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}
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static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager_info info;
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int r;
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bool enable;
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if (!dss_has_feature(FEAT_CPR))
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return -ENODEV;
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r = strtobool(buf, &enable);
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if (r)
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return r;
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mgr->get_manager_info(mgr, &info);
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if (info.cpr_enable == enable)
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return size;
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info.cpr_enable = enable;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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 manager_cpr_coef_show(struct omap_overlay_manager *mgr,
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char *buf)
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{
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struct omap_overlay_manager_info info;
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mgr->get_manager_info(mgr, &info);
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return snprintf(buf, PAGE_SIZE,
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"%d %d %d %d %d %d %d %d %d\n",
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info.cpr_coefs.rr,
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info.cpr_coefs.rg,
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info.cpr_coefs.rb,
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info.cpr_coefs.gr,
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info.cpr_coefs.gg,
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info.cpr_coefs.gb,
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info.cpr_coefs.br,
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info.cpr_coefs.bg,
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info.cpr_coefs.bb);
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}
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static ssize_t manager_cpr_coef_store(struct omap_overlay_manager *mgr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager_info info;
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struct omap_dss_cpr_coefs coefs;
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int r, i;
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s16 *arr;
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if (!dss_has_feature(FEAT_CPR))
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return -ENODEV;
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if (sscanf(buf, "%hd %hd %hd %hd %hd %hd %hd %hd %hd",
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&coefs.rr, &coefs.rg, &coefs.rb,
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&coefs.gr, &coefs.gg, &coefs.gb,
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&coefs.br, &coefs.bg, &coefs.bb) != 9)
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return -EINVAL;
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arr = (s16[]){ coefs.rr, coefs.rg, coefs.rb,
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coefs.gr, coefs.gg, coefs.gb,
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coefs.br, coefs.bg, coefs.bb };
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for (i = 0; i < 9; ++i) {
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if (arr[i] < -512 || arr[i] > 511)
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return -EINVAL;
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}
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mgr->get_manager_info(mgr, &info);
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info.cpr_coefs = coefs;
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r = mgr->set_manager_info(mgr, &info);
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if (r)
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return r;
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r = mgr->apply(mgr);
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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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struct manager_attribute {
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struct attribute attr;
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ssize_t (*show)(struct omap_overlay_manager *, char *);
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ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
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};
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#define MANAGER_ATTR(_name, _mode, _show, _store) \
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struct manager_attribute manager_attr_##_name = \
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__ATTR(_name, _mode, _show, _store)
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static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
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static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
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manager_display_show, manager_display_store);
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static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
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manager_default_color_show, manager_default_color_store);
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static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
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manager_trans_key_type_show, manager_trans_key_type_store);
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static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
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manager_trans_key_value_show, manager_trans_key_value_store);
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static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
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manager_trans_key_enabled_show,
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manager_trans_key_enabled_store);
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static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
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manager_alpha_blending_enabled_show,
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manager_alpha_blending_enabled_store);
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static MANAGER_ATTR(cpr_enable, S_IRUGO|S_IWUSR,
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manager_cpr_enable_show,
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manager_cpr_enable_store);
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static MANAGER_ATTR(cpr_coef, S_IRUGO|S_IWUSR,
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manager_cpr_coef_show,
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manager_cpr_coef_store);
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static struct attribute *manager_sysfs_attrs[] = {
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&manager_attr_name.attr,
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&manager_attr_display.attr,
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&manager_attr_default_color.attr,
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&manager_attr_trans_key_type.attr,
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&manager_attr_trans_key_value.attr,
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&manager_attr_trans_key_enabled.attr,
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&manager_attr_alpha_blending_enabled.attr,
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&manager_attr_cpr_enable.attr,
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&manager_attr_cpr_coef.attr,
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NULL
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};
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static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
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char *buf)
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{
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struct omap_overlay_manager *manager;
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struct manager_attribute *manager_attr;
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manager = container_of(kobj, struct omap_overlay_manager, kobj);
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manager_attr = container_of(attr, struct manager_attribute, attr);
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if (!manager_attr->show)
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return -ENOENT;
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return manager_attr->show(manager, buf);
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}
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static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
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const char *buf, size_t size)
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{
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struct omap_overlay_manager *manager;
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struct manager_attribute *manager_attr;
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manager = container_of(kobj, struct omap_overlay_manager, kobj);
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manager_attr = container_of(attr, struct manager_attribute, attr);
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if (!manager_attr->store)
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return -ENOENT;
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return manager_attr->store(manager, buf, size);
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}
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static const struct sysfs_ops manager_sysfs_ops = {
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.show = manager_attr_show,
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.store = manager_attr_store,
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};
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static struct kobj_type manager_ktype = {
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.sysfs_ops = &manager_sysfs_ops,
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.default_attrs = manager_sysfs_attrs,
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};
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int dss_manager_kobj_init(struct omap_overlay_manager *mgr,
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struct platform_device *pdev)
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{
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return kobject_init_and_add(&mgr->kobj, &manager_ktype,
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&pdev->dev.kobj, "manager%d", mgr->id);
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}
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void dss_manager_kobj_uninit(struct omap_overlay_manager *mgr)
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{
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kobject_del(&mgr->kobj);
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kobject_put(&mgr->kobj);
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}
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