// SPDX-License-Identifier: GPL-2.0-only
/*
* Copyright (C) 2009 Nokia Corporation
* Author: Tomi Valkeinen <[email protected]>
*
* Some code and ideas taken from drivers/video/omap/ driver
* by Imre Deak.
*/
#define DSS_SUBSYS_NAME "MANAGER"
#include <linux/kernel.h>
#include <linux/kstrtox.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/jiffies.h>
#include <video/omapfb_dss.h>
#include "dss.h"
#include "dss_features.h"
static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
{
return sysfs_emit(buf, "%s\n", mgr->name);
}
static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf)
{
struct omap_dss_device *dssdev = mgr->get_device(mgr);
return sysfs_emit(buf, "%s\n", dssdev ?
dssdev->name : "<none>");
}
static int manager_display_match(struct omap_dss_device *dssdev, void *data)
{
const char *str = data;
return sysfs_streq(dssdev->name, str);
}
static ssize_t manager_display_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
int r = 0;
size_t len = size;
struct omap_dss_device *dssdev = NULL;
struct omap_dss_device *old_dssdev;
if (buf[size-1] == '\n')
--len;
if (len > 0)
dssdev = omap_dss_find_device((void *)buf,
manager_display_match);
if (len > 0 && dssdev == NULL)
return -EINVAL;
if (dssdev) {
DSSDBG("display %s found\n", dssdev->name);
if (omapdss_device_is_connected(dssdev)) {
DSSERR("new display is already connected\n");
r = -EINVAL;
goto put_device;
}
if (omapdss_device_is_enabled(dssdev)) {
DSSERR("new display is not disabled\n");
r = -EINVAL;
goto put_device;
}
}
old_dssdev = mgr->get_device(mgr);
if (old_dssdev) {
if (omapdss_device_is_enabled(old_dssdev)) {
DSSERR("old display is not disabled\n");
r = -EINVAL;
goto put_device;
}
old_dssdev->driver->disconnect(old_dssdev);
}
if (dssdev) {
r = dssdev->driver->connect(dssdev);
if (r) {
DSSERR("failed to connect new device\n");
goto put_device;
}
old_dssdev = mgr->get_device(mgr);
if (old_dssdev != dssdev) {
DSSERR("failed to connect device to this manager\n");
dssdev->driver->disconnect(dssdev);
goto put_device;
}
r = mgr->apply(mgr);
if (r) {
DSSERR("failed to apply dispc config\n");
goto put_device;
}
}
put_device:
if (dssdev)
omap_dss_put_device(dssdev);
return r ? r : size;
}
static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
char *buf)
{
struct omap_overlay_manager_info info;
mgr->get_manager_info(mgr, &info);
return sysfs_emit(buf, "%#x\n", info.default_color);
}
static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
u32 color;
int r;
r = kstrtouint(buf, 0, &color);
if (r)
return r;
mgr->get_manager_info(mgr, &info);
info.default_color = color;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
static const char *trans_key_type_str[] = {
"gfx-destination",
"video-source",
};
static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
char *buf)
{
enum omap_dss_trans_key_type key_type;
struct omap_overlay_manager_info info;
mgr->get_manager_info(mgr, &info);
key_type = info.trans_key_type;
BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
return sysfs_emit(buf, "%s\n", trans_key_type_str[key_type]);
}
static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
int r;
r = sysfs_match_string(trans_key_type_str, buf);
if (r < 0)
return r;
mgr->get_manager_info(mgr, &info);
info.trans_key_type = r;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
char *buf)
{
struct omap_overlay_manager_info info;
mgr->get_manager_info(mgr, &info);
return sysfs_emit(buf, "%#x\n", info.trans_key);
}
static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
u32 key_value;
int r;
r = kstrtouint(buf, 0, &key_value);
if (r)
return r;
mgr->get_manager_info(mgr, &info);
info.trans_key = key_value;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
char *buf)
{
struct omap_overlay_manager_info info;
mgr->get_manager_info(mgr, &info);
return sysfs_emit(buf, "%d\n", info.trans_enabled);
}
static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
bool enable;
int r;
r = kstrtobool(buf, &enable);
if (r)
return r;
mgr->get_manager_info(mgr, &info);
info.trans_enabled = enable;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
static ssize_t manager_alpha_blending_enabled_show(
struct omap_overlay_manager *mgr, char *buf)
{
struct omap_overlay_manager_info info;
if(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
return -ENODEV;
mgr->get_manager_info(mgr, &info);
return sysfs_emit(buf, "%d\n",
info.partial_alpha_enabled);
}
static ssize_t manager_alpha_blending_enabled_store(
struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
bool enable;
int r;
if(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER))
return -ENODEV;
r = kstrtobool(buf, &enable);
if (r)
return r;
mgr->get_manager_info(mgr, &info);
info.partial_alpha_enabled = enable;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
static ssize_t manager_cpr_enable_show(struct omap_overlay_manager *mgr,
char *buf)
{
struct omap_overlay_manager_info info;
mgr->get_manager_info(mgr, &info);
return sysfs_emit(buf, "%d\n", info.cpr_enable);
}
static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
int r;
bool enable;
if (!dss_has_feature(FEAT_CPR))
return -ENODEV;
r = kstrtobool(buf, &enable);
if (r)
return r;
mgr->get_manager_info(mgr, &info);
if (info.cpr_enable == enable)
return size;
info.cpr_enable = enable;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
static ssize_t manager_cpr_coef_show(struct omap_overlay_manager *mgr,
char *buf)
{
struct omap_overlay_manager_info info;
mgr->get_manager_info(mgr, &info);
return sysfs_emit(buf,
"%d %d %d %d %d %d %d %d %d\n",
info.cpr_coefs.rr,
info.cpr_coefs.rg,
info.cpr_coefs.rb,
info.cpr_coefs.gr,
info.cpr_coefs.gg,
info.cpr_coefs.gb,
info.cpr_coefs.br,
info.cpr_coefs.bg,
info.cpr_coefs.bb);
}
static ssize_t manager_cpr_coef_store(struct omap_overlay_manager *mgr,
const char *buf, size_t size)
{
struct omap_overlay_manager_info info;
struct omap_dss_cpr_coefs coefs;
int r, i;
s16 *arr;
if (!dss_has_feature(FEAT_CPR))
return -ENODEV;
if (sscanf(buf, "%hd %hd %hd %hd %hd %hd %hd %hd %hd",
&coefs.rr, &coefs.rg, &coefs.rb,
&coefs.gr, &coefs.gg, &coefs.gb,
&coefs.br, &coefs.bg, &coefs.bb) != 9)
return -EINVAL;
arr = (s16[]){ coefs.rr, coefs.rg, coefs.rb,
coefs.gr, coefs.gg, coefs.gb,
coefs.br, coefs.bg, coefs.bb };
for (i = 0; i < 9; ++i) {
if (arr[i] < -512 || arr[i] > 511)
return -EINVAL;
}
mgr->get_manager_info(mgr, &info);
info.cpr_coefs = coefs;
r = mgr->set_manager_info(mgr, &info);
if (r)
return r;
r = mgr->apply(mgr);
if (r)
return r;
return size;
}
struct manager_attribute {
struct attribute attr;
ssize_t (*show)(struct omap_overlay_manager *, char *);
ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t);
};
#define MANAGER_ATTR(_name, _mode, _show, _store) \
struct manager_attribute manager_attr_##_name = \
__ATTR(_name, _mode, _show, _store)
static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL);
static MANAGER_ATTR(display, S_IRUGO|S_IWUSR,
manager_display_show, manager_display_store);
static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR,
manager_default_color_show, manager_default_color_store);
static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR,
manager_trans_key_type_show, manager_trans_key_type_store);
static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR,
manager_trans_key_value_show, manager_trans_key_value_store);
static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR,
manager_trans_key_enabled_show,
manager_trans_key_enabled_store);
static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR,
manager_alpha_blending_enabled_show,
manager_alpha_blending_enabled_store);
static MANAGER_ATTR(cpr_enable, S_IRUGO|S_IWUSR,
manager_cpr_enable_show,
manager_cpr_enable_store);
static MANAGER_ATTR(cpr_coef, S_IRUGO|S_IWUSR,
manager_cpr_coef_show,
manager_cpr_coef_store);
static struct attribute *manager_sysfs_attrs[] = {
&manager_attr_name.attr,
&manager_attr_display.attr,
&manager_attr_default_color.attr,
&manager_attr_trans_key_type.attr,
&manager_attr_trans_key_value.attr,
&manager_attr_trans_key_enabled.attr,
&manager_attr_alpha_blending_enabled.attr,
&manager_attr_cpr_enable.attr,
&manager_attr_cpr_coef.attr,
NULL
};
ATTRIBUTE_GROUPS(manager_sysfs);
static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr,
char *buf)
{
struct omap_overlay_manager *manager;
struct manager_attribute *manager_attr;
manager = container_of(kobj, struct omap_overlay_manager, kobj);
manager_attr = container_of(attr, struct manager_attribute, attr);
if (!manager_attr->show)
return -ENOENT;
return manager_attr->show(manager, buf);
}
static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr,
const char *buf, size_t size)
{
struct omap_overlay_manager *manager;
struct manager_attribute *manager_attr;
manager = container_of(kobj, struct omap_overlay_manager, kobj);
manager_attr = container_of(attr, struct manager_attribute, attr);
if (!manager_attr->store)
return -ENOENT;
return manager_attr->store(manager, buf, size);
}
static const struct sysfs_ops manager_sysfs_ops = {
.show = manager_attr_show,
.store = manager_attr_store,
};
static struct kobj_type manager_ktype = {
.sysfs_ops = &manager_sysfs_ops,
.default_groups = manager_sysfs_groups,
};
int dss_manager_kobj_init(struct omap_overlay_manager *mgr,
struct platform_device *pdev)
{
return kobject_init_and_add(&mgr->kobj, &manager_ktype,
&pdev->dev.kobj, "manager%d", mgr->id);
}
void dss_manager_kobj_uninit(struct omap_overlay_manager *mgr)
{
kobject_del(&mgr->kobj);
kobject_put(&mgr->kobj);
memset(&mgr->kobj, 0, sizeof(mgr->kobj));
}
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