1 files changed, 512 insertions, 0 deletions

diff --git a/drivers/video/omap2/dss/manager-sysfs.c b/drivers/video/omap2/dss/manager-sysfs.c
new file mode 100644
index 000000000000..9a2fb59b6f89
--- /dev/null
+++ b/drivers/video/omap2/dss/manager-sysfs.c
@@ -0,0 +1,512 @@
+/*
+ * 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 "MANAGER"
+
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/jiffies.h>
+
+#include <video/omapdss.h>
+
+#include "dss.h"
+#include "dss_features.h"
+
+static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
+{
+        return snprintf(buf, PAGE_SIZE, "%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 snprintf(buf, PAGE_SIZE, "%s\n", dssdev ?
+                        dssdev->name : "<none>");
+}
+
+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;
+
+        int match(struct omap_dss_device *dssdev, void *data)
+        {
+                const char *str = data;
+                return sysfs_streq(dssdev->name, str);
+        }
+
+        if (buf[size-1] == '\n')
+                --len;
+
+        if (len > 0)
+                dssdev = omap_dss_find_device((void *)buf, match);
+
+        if (len > 0 && dssdev == NULL)
+                return -EINVAL;
+
+        if (dssdev)
+                DSSDBG("display %s found\n", dssdev->name);
+
+        if (mgr->output) {
+                r = mgr->unset_output(mgr);
+                if (r) {
+                        DSSERR("failed to unset current output\n");
+                        goto put_device;
+                }
+        }
+
+        if (dssdev) {
+                struct omap_dss_output *out = dssdev->output;
+
+                /*
+                 * a registered device should have an output connected to it
+                 * already
+                 */
+                if (!out) {
+                        DSSERR("device has no output connected to it\n");
+                        goto put_device;
+                }
+
+                r = mgr->set_output(mgr, out);
+                if (r) {
+                        DSSERR("failed to set manager output\n");
+                        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 snprintf(buf, PAGE_SIZE, "%#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 snprintf(buf, PAGE_SIZE, "%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)
+{
+        enum omap_dss_trans_key_type key_type;
+        struct omap_overlay_manager_info info;
+        int r;
+
+        for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST;
+                        key_type < ARRAY_SIZE(trans_key_type_str); key_type++) {
+                if (sysfs_streq(buf, trans_key_type_str[key_type]))
+                        break;
+        }
+
+        if (key_type == ARRAY_SIZE(trans_key_type_str))
+                return -EINVAL;
+
+        mgr->get_manager_info(mgr, &info);
+
+        info.trans_key_type = key_type;
+
+        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 snprintf(buf, PAGE_SIZE, "%#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 snprintf(buf, PAGE_SIZE, "%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 = strtobool(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;
+
+        mgr->get_manager_info(mgr, &info);
+
+        WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
+
+        return snprintf(buf, PAGE_SIZE, "%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;
+
+        WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
+
+        r = strtobool(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 snprintf(buf, PAGE_SIZE, "%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 = strtobool(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 snprintf(buf, PAGE_SIZE,
+                        "%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
+};
+
+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_attrs = manager_sysfs_attrs,
+};
+
+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);
+}