447 lines
9.0 KiB
C
447 lines
9.0 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
|
|
/*
|
|
* 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.
|
|
*/
|
|
|
|
#define DSS_SUBSYS_NAME "OVERLAY"
|
|
|
|
#include <linux/module.h>
|
|
#include <linux/err.h>
|
|
#include <linux/sysfs.h>
|
|
#include <linux/kobject.h>
|
|
#include <linux/platform_device.h>
|
|
|
|
#include <video/omapfb_dss.h>
|
|
|
|
#include "dss.h"
|
|
#include "dss_features.h"
|
|
|
|
static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
return sysfs_emit(buf, "%s\n", ovl->name);
|
|
}
|
|
|
|
static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
return sysfs_emit(buf, "%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 (sysfs_streq(buf, mgr->name))
|
|
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;
|
|
|
|
r = dispc_runtime_get();
|
|
if (r)
|
|
return r;
|
|
|
|
/* detach old manager */
|
|
if (old_mgr) {
|
|
r = ovl->unset_manager(ovl);
|
|
if (r) {
|
|
DSSERR("detach failed\n");
|
|
goto err;
|
|
}
|
|
|
|
r = old_mgr->apply(old_mgr);
|
|
if (r)
|
|
goto err;
|
|
}
|
|
|
|
if (mgr) {
|
|
r = ovl->set_manager(ovl, mgr);
|
|
if (r) {
|
|
DSSERR("Failed to attach overlay\n");
|
|
goto err;
|
|
}
|
|
|
|
r = mgr->apply(mgr);
|
|
if (r)
|
|
goto err;
|
|
}
|
|
|
|
dispc_runtime_put();
|
|
|
|
return size;
|
|
|
|
err:
|
|
dispc_runtime_put();
|
|
return r;
|
|
}
|
|
|
|
static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d,%d\n",
|
|
info.width, info.height);
|
|
}
|
|
|
|
static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d\n", info.screen_width);
|
|
}
|
|
|
|
static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d,%d\n",
|
|
info.pos_x, 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)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d,%d\n",
|
|
info.out_width, 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 sysfs_emit(buf, "%d\n", ovl->is_enabled(ovl));
|
|
}
|
|
|
|
static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf,
|
|
size_t size)
|
|
{
|
|
int r;
|
|
bool enable;
|
|
|
|
r = strtobool(buf, &enable);
|
|
if (r)
|
|
return r;
|
|
|
|
if (enable)
|
|
r = ovl->enable(ovl);
|
|
else
|
|
r = ovl->disable(ovl);
|
|
|
|
if (r)
|
|
return r;
|
|
|
|
return size;
|
|
}
|
|
|
|
static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d\n",
|
|
info.global_alpha);
|
|
}
|
|
|
|
static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl,
|
|
const char *buf, size_t size)
|
|
{
|
|
int r;
|
|
u8 alpha;
|
|
struct omap_overlay_info info;
|
|
|
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_GLOBAL_ALPHA) == 0)
|
|
return -ENODEV;
|
|
|
|
r = kstrtou8(buf, 0, &alpha);
|
|
if (r)
|
|
return r;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
info.global_alpha = alpha;
|
|
|
|
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_pre_mult_alpha_show(struct omap_overlay *ovl,
|
|
char *buf)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d\n",
|
|
info.pre_mult_alpha);
|
|
}
|
|
|
|
static ssize_t overlay_pre_mult_alpha_store(struct omap_overlay *ovl,
|
|
const char *buf, size_t size)
|
|
{
|
|
int r;
|
|
u8 alpha;
|
|
struct omap_overlay_info info;
|
|
|
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_PRE_MULT_ALPHA) == 0)
|
|
return -ENODEV;
|
|
|
|
r = kstrtou8(buf, 0, &alpha);
|
|
if (r)
|
|
return r;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
info.pre_mult_alpha = alpha;
|
|
|
|
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_zorder_show(struct omap_overlay *ovl, char *buf)
|
|
{
|
|
struct omap_overlay_info info;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
return sysfs_emit(buf, "%d\n", info.zorder);
|
|
}
|
|
|
|
static ssize_t overlay_zorder_store(struct omap_overlay *ovl,
|
|
const char *buf, size_t size)
|
|
{
|
|
int r;
|
|
u8 zorder;
|
|
struct omap_overlay_info info;
|
|
|
|
if ((ovl->caps & OMAP_DSS_OVL_CAP_ZORDER) == 0)
|
|
return -ENODEV;
|
|
|
|
r = kstrtou8(buf, 0, &zorder);
|
|
if (r)
|
|
return r;
|
|
|
|
ovl->get_overlay_info(ovl, &info);
|
|
|
|
info.zorder = zorder;
|
|
|
|
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 OVERLAY_ATTR(pre_mult_alpha, S_IRUGO|S_IWUSR,
|
|
overlay_pre_mult_alpha_show,
|
|
overlay_pre_mult_alpha_store);
|
|
static OVERLAY_ATTR(zorder, S_IRUGO|S_IWUSR,
|
|
overlay_zorder_show, overlay_zorder_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,
|
|
&overlay_attr_pre_mult_alpha.attr,
|
|
&overlay_attr_zorder.attr,
|
|
NULL
|
|
};
|
|
ATTRIBUTE_GROUPS(overlay_sysfs);
|
|
|
|
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 const 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_groups = overlay_sysfs_groups,
|
|
};
|
|
|
|
int dss_overlay_kobj_init(struct omap_overlay *ovl,
|
|
struct platform_device *pdev)
|
|
{
|
|
return kobject_init_and_add(&ovl->kobj, &overlay_ktype,
|
|
&pdev->dev.kobj, "overlay%d", ovl->id);
|
|
}
|
|
|
|
void dss_overlay_kobj_uninit(struct omap_overlay *ovl)
|
|
{
|
|
kobject_del(&ovl->kobj);
|
|
kobject_put(&ovl->kobj);
|
|
}
|