1488 lines
32 KiB
C
1488 lines
32 KiB
C
/*
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* linux/drivers/video/omap2/dss/manager.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 "MANAGER"
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#include <linux/kernel.h>
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#include <linux/module.h>
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#include <linux/platform_device.h>
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#include <linux/spinlock.h>
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#include <linux/jiffies.h>
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#include <plat/display.h>
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#include <plat/cpu.h>
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#include "dss.h"
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static int num_managers;
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static struct list_head manager_list;
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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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return snprintf(buf, PAGE_SIZE, "%s\n",
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mgr->device ? mgr->device->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->device) {
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r = mgr->unset_device(mgr);
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if (r) {
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DSSERR("failed to unset display\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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r = mgr->set_device(mgr, dssdev);
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if (r) {
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DSSERR("failed to set manager\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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return snprintf(buf, PAGE_SIZE, "%d\n", mgr->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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if (sscanf(buf, "%d", &color) != 1)
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return -EINVAL;
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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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key_type = mgr->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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return snprintf(buf, PAGE_SIZE, "%d\n", mgr->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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if (sscanf(buf, "%d", &key_value) != 1)
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return -EINVAL;
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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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return snprintf(buf, PAGE_SIZE, "%d\n", mgr->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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int enable;
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int r;
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if (sscanf(buf, "%d", &enable) != 1)
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return -EINVAL;
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mgr->get_manager_info(mgr, &info);
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info.trans_enabled = enable ? true : false;
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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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return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.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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int enable;
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int r;
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if (sscanf(buf, "%d", &enable) != 1)
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return -EINVAL;
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mgr->get_manager_info(mgr, &info);
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info.alpha_enabled = enable ? true : false;
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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 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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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 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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/*
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* We have 4 levels of cache for the dispc settings. First two are in SW and
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* the latter two in HW.
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*
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* +--------------------+
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* |overlay/manager_info|
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* +--------------------+
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* v
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* apply()
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* v
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* +--------------------+
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* | dss_cache |
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* +--------------------+
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* v
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* configure()
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* v
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* +--------------------+
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* | shadow registers |
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* +--------------------+
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* v
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* VFP or lcd/digit_enable
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* v
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* +--------------------+
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* | registers |
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* +--------------------+
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*/
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struct overlay_cache_data {
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/* If true, cache changed, but not written to shadow registers. Set
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* in apply(), cleared when registers written. */
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bool dirty;
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/* If true, shadow registers contain changed values not yet in real
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* registers. Set when writing to shadow registers, cleared at
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* VSYNC/EVSYNC */
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bool shadow_dirty;
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bool enabled;
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u32 paddr;
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void __iomem *vaddr;
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u16 screen_width;
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u16 width;
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u16 height;
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enum omap_color_mode color_mode;
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u8 rotation;
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enum omap_dss_rotation_type rotation_type;
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bool mirror;
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u16 pos_x;
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u16 pos_y;
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u16 out_width; /* if 0, out_width == width */
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u16 out_height; /* if 0, out_height == height */
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u8 global_alpha;
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enum omap_channel channel;
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bool replication;
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bool ilace;
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enum omap_burst_size burst_size;
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u32 fifo_low;
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u32 fifo_high;
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bool manual_update;
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};
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struct manager_cache_data {
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/* If true, cache changed, but not written to shadow registers. Set
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* in apply(), cleared when registers written. */
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bool dirty;
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/* If true, shadow registers contain changed values not yet in real
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* registers. Set when writing to shadow registers, cleared at
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* VSYNC/EVSYNC */
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bool shadow_dirty;
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u32 default_color;
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enum omap_dss_trans_key_type trans_key_type;
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u32 trans_key;
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bool trans_enabled;
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bool alpha_enabled;
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bool manual_upd_display;
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bool manual_update;
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bool do_manual_update;
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/* manual update region */
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u16 x, y, w, h;
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};
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static struct {
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spinlock_t lock;
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struct overlay_cache_data overlay_cache[3];
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struct manager_cache_data manager_cache[2];
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bool irq_enabled;
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} dss_cache;
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static int omap_dss_set_device(struct omap_overlay_manager *mgr,
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struct omap_dss_device *dssdev)
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{
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int i;
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int r;
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if (dssdev->manager) {
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DSSERR("display '%s' already has a manager '%s'\n",
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dssdev->name, dssdev->manager->name);
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return -EINVAL;
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}
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if ((mgr->supported_displays & dssdev->type) == 0) {
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DSSERR("display '%s' does not support manager '%s'\n",
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dssdev->name, mgr->name);
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return -EINVAL;
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}
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for (i = 0; i < mgr->num_overlays; i++) {
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struct omap_overlay *ovl = mgr->overlays[i];
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|
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if (ovl->manager != mgr || !ovl->info.enabled)
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continue;
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r = dss_check_overlay(ovl, dssdev);
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if (r)
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return r;
|
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}
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dssdev->manager = mgr;
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mgr->device = dssdev;
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mgr->device_changed = true;
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return 0;
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}
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|
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static int omap_dss_unset_device(struct omap_overlay_manager *mgr)
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{
|
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if (!mgr->device) {
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DSSERR("failed to unset display, display not set.\n");
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return -EINVAL;
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}
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mgr->device->manager = NULL;
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mgr->device = NULL;
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mgr->device_changed = true;
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return 0;
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}
|
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|
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static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
|
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{
|
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unsigned long timeout = msecs_to_jiffies(500);
|
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struct manager_cache_data *mc;
|
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enum omap_channel channel;
|
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u32 irq;
|
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int r;
|
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int i;
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|
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if (!mgr->device)
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return 0;
|
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|
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if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC) {
|
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irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
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channel = OMAP_DSS_CHANNEL_DIGIT;
|
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} else {
|
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if (mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
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enum omap_dss_update_mode mode;
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mode = mgr->device->get_update_mode(mgr->device);
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if (mode != OMAP_DSS_UPDATE_AUTO)
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return 0;
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|
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irq = DISPC_IRQ_FRAMEDONE;
|
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} else {
|
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irq = DISPC_IRQ_VSYNC;
|
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}
|
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channel = OMAP_DSS_CHANNEL_LCD;
|
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}
|
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|
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mc = &dss_cache.manager_cache[mgr->id];
|
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i = 0;
|
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while (1) {
|
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unsigned long flags;
|
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bool shadow_dirty, dirty;
|
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|
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spin_lock_irqsave(&dss_cache.lock, flags);
|
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dirty = mc->dirty;
|
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shadow_dirty = mc->shadow_dirty;
|
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spin_unlock_irqrestore(&dss_cache.lock, flags);
|
|
|
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if (!dirty && !shadow_dirty) {
|
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r = 0;
|
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break;
|
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}
|
|
|
|
/* 4 iterations is the worst case:
|
|
* 1 - initial iteration, dirty = true (between VFP and VSYNC)
|
|
* 2 - first VSYNC, dirty = true
|
|
* 3 - dirty = false, shadow_dirty = true
|
|
* 4 - shadow_dirty = false */
|
|
if (i++ == 3) {
|
|
DSSERR("mgr(%d)->wait_for_go() not finishing\n",
|
|
mgr->id);
|
|
r = 0;
|
|
break;
|
|
}
|
|
|
|
r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
|
|
if (r == -ERESTARTSYS)
|
|
break;
|
|
|
|
if (r) {
|
|
DSSERR("mgr(%d)->wait_for_go() timeout\n", mgr->id);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
|
|
{
|
|
unsigned long timeout = msecs_to_jiffies(500);
|
|
enum omap_channel channel;
|
|
struct overlay_cache_data *oc;
|
|
struct omap_dss_device *dssdev;
|
|
u32 irq;
|
|
int r;
|
|
int i;
|
|
|
|
if (!ovl->manager || !ovl->manager->device)
|
|
return 0;
|
|
|
|
dssdev = ovl->manager->device;
|
|
|
|
if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) {
|
|
irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
|
|
channel = OMAP_DSS_CHANNEL_DIGIT;
|
|
} else {
|
|
if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) {
|
|
enum omap_dss_update_mode mode;
|
|
mode = dssdev->get_update_mode(dssdev);
|
|
if (mode != OMAP_DSS_UPDATE_AUTO)
|
|
return 0;
|
|
|
|
irq = DISPC_IRQ_FRAMEDONE;
|
|
} else {
|
|
irq = DISPC_IRQ_VSYNC;
|
|
}
|
|
channel = OMAP_DSS_CHANNEL_LCD;
|
|
}
|
|
|
|
oc = &dss_cache.overlay_cache[ovl->id];
|
|
i = 0;
|
|
while (1) {
|
|
unsigned long flags;
|
|
bool shadow_dirty, dirty;
|
|
|
|
spin_lock_irqsave(&dss_cache.lock, flags);
|
|
dirty = oc->dirty;
|
|
shadow_dirty = oc->shadow_dirty;
|
|
spin_unlock_irqrestore(&dss_cache.lock, flags);
|
|
|
|
if (!dirty && !shadow_dirty) {
|
|
r = 0;
|
|
break;
|
|
}
|
|
|
|
/* 4 iterations is the worst case:
|
|
* 1 - initial iteration, dirty = true (between VFP and VSYNC)
|
|
* 2 - first VSYNC, dirty = true
|
|
* 3 - dirty = false, shadow_dirty = true
|
|
* 4 - shadow_dirty = false */
|
|
if (i++ == 3) {
|
|
DSSERR("ovl(%d)->wait_for_go() not finishing\n",
|
|
ovl->id);
|
|
r = 0;
|
|
break;
|
|
}
|
|
|
|
r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
|
|
if (r == -ERESTARTSYS)
|
|
break;
|
|
|
|
if (r) {
|
|
DSSERR("ovl(%d)->wait_for_go() timeout\n", ovl->id);
|
|
break;
|
|
}
|
|
}
|
|
|
|
return r;
|
|
}
|
|
|
|
static int overlay_enabled(struct omap_overlay *ovl)
|
|
{
|
|
return ovl->info.enabled && ovl->manager && ovl->manager->device;
|
|
}
|
|
|
|
/* Is rect1 a subset of rect2? */
|
|
static bool rectangle_subset(int x1, int y1, int w1, int h1,
|
|
int x2, int y2, int w2, int h2)
|
|
{
|
|
if (x1 < x2 || y1 < y2)
|
|
return false;
|
|
|
|
if (x1 + w1 > x2 + w2)
|
|
return false;
|
|
|
|
if (y1 + h1 > y2 + h2)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
/* Do rect1 and rect2 overlap? */
|
|
static bool rectangle_intersects(int x1, int y1, int w1, int h1,
|
|
int x2, int y2, int w2, int h2)
|
|
{
|
|
if (x1 >= x2 + w2)
|
|
return false;
|
|
|
|
if (x2 >= x1 + w1)
|
|
return false;
|
|
|
|
if (y1 >= y2 + h2)
|
|
return false;
|
|
|
|
if (y2 >= y1 + h1)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
static bool dispc_is_overlay_scaled(struct overlay_cache_data *oc)
|
|
{
|
|
if (oc->out_width != 0 && oc->width != oc->out_width)
|
|
return true;
|
|
|
|
if (oc->out_height != 0 && oc->height != oc->out_height)
|
|
return true;
|
|
|
|
return false;
|
|
}
|
|
|
|
static int configure_overlay(enum omap_plane plane)
|
|
{
|
|
struct overlay_cache_data *c;
|
|
struct manager_cache_data *mc;
|
|
u16 outw, outh;
|
|
u16 x, y, w, h;
|
|
u32 paddr;
|
|
int r;
|
|
|
|
DSSDBGF("%d", plane);
|
|
|
|
c = &dss_cache.overlay_cache[plane];
|
|
|
|
if (!c->enabled) {
|
|
dispc_enable_plane(plane, 0);
|
|
return 0;
|
|
}
|
|
|
|
mc = &dss_cache.manager_cache[c->channel];
|
|
|
|
x = c->pos_x;
|
|
y = c->pos_y;
|
|
w = c->width;
|
|
h = c->height;
|
|
outw = c->out_width == 0 ? c->width : c->out_width;
|
|
outh = c->out_height == 0 ? c->height : c->out_height;
|
|
paddr = c->paddr;
|
|
|
|
if (c->manual_update && mc->do_manual_update) {
|
|
unsigned bpp;
|
|
/* If the overlay is outside the update region, disable it */
|
|
if (!rectangle_intersects(mc->x, mc->y, mc->w, mc->h,
|
|
x, y, outw, outh)) {
|
|
dispc_enable_plane(plane, 0);
|
|
return 0;
|
|
}
|
|
|
|
switch (c->color_mode) {
|
|
case OMAP_DSS_COLOR_RGB16:
|
|
case OMAP_DSS_COLOR_ARGB16:
|
|
case OMAP_DSS_COLOR_YUV2:
|
|
case OMAP_DSS_COLOR_UYVY:
|
|
bpp = 16;
|
|
break;
|
|
|
|
case OMAP_DSS_COLOR_RGB24P:
|
|
bpp = 24;
|
|
break;
|
|
|
|
case OMAP_DSS_COLOR_RGB24U:
|
|
case OMAP_DSS_COLOR_ARGB32:
|
|
case OMAP_DSS_COLOR_RGBA32:
|
|
case OMAP_DSS_COLOR_RGBX32:
|
|
bpp = 32;
|
|
break;
|
|
|
|
default:
|
|
BUG();
|
|
}
|
|
|
|
if (dispc_is_overlay_scaled(c)) {
|
|
/* If the overlay is scaled, the update area has
|
|
* already been enlarged to cover the whole overlay. We
|
|
* only need to adjust x/y here */
|
|
x = c->pos_x - mc->x;
|
|
y = c->pos_y - mc->y;
|
|
} else {
|
|
if (mc->x > c->pos_x) {
|
|
x = 0;
|
|
w -= (mc->x - c->pos_x);
|
|
paddr += (mc->x - c->pos_x) * bpp / 8;
|
|
} else {
|
|
x = c->pos_x - mc->x;
|
|
}
|
|
|
|
if (mc->y > c->pos_y) {
|
|
y = 0;
|
|
h -= (mc->y - c->pos_y);
|
|
paddr += (mc->y - c->pos_y) * c->screen_width *
|
|
bpp / 8;
|
|
} else {
|
|
y = c->pos_y - mc->y;
|
|
}
|
|
|
|
if (mc->w < (x+w))
|
|
w -= (x+w) - (mc->w);
|
|
|
|
if (mc->h < (y+h))
|
|
h -= (y+h) - (mc->h);
|
|
|
|
outw = w;
|
|
outh = h;
|
|
}
|
|
}
|
|
|
|
r = dispc_setup_plane(plane,
|
|
paddr,
|
|
c->screen_width,
|
|
x, y,
|
|
w, h,
|
|
outw, outh,
|
|
c->color_mode,
|
|
c->ilace,
|
|
c->rotation_type,
|
|
c->rotation,
|
|
c->mirror,
|
|
c->global_alpha);
|
|
|
|
if (r) {
|
|
/* this shouldn't happen */
|
|
DSSERR("dispc_setup_plane failed for ovl %d\n", plane);
|
|
dispc_enable_plane(plane, 0);
|
|
return r;
|
|
}
|
|
|
|
dispc_enable_replication(plane, c->replication);
|
|
|
|
dispc_set_burst_size(plane, c->burst_size);
|
|
dispc_setup_plane_fifo(plane, c->fifo_low, c->fifo_high);
|
|
|
|
dispc_enable_plane(plane, 1);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void configure_manager(enum omap_channel channel)
|
|
{
|
|
struct manager_cache_data *c;
|
|
|
|
DSSDBGF("%d", channel);
|
|
|
|
c = &dss_cache.manager_cache[channel];
|
|
|
|
dispc_set_trans_key(channel, c->trans_key_type, c->trans_key);
|
|
dispc_enable_trans_key(channel, c->trans_enabled);
|
|
dispc_enable_alpha_blending(channel, c->alpha_enabled);
|
|
}
|
|
|
|
/* configure_dispc() tries to write values from cache to shadow registers.
|
|
* It writes only to those managers/overlays that are not busy.
|
|
* returns 0 if everything could be written to shadow registers.
|
|
* returns 1 if not everything could be written to shadow registers. */
|
|
static int configure_dispc(void)
|
|
{
|
|
struct overlay_cache_data *oc;
|
|
struct manager_cache_data *mc;
|
|
const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
|
|
const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
|
|
int i;
|
|
int r;
|
|
bool mgr_busy[2];
|
|
bool mgr_go[2];
|
|
bool busy;
|
|
|
|
r = 0;
|
|
busy = false;
|
|
|
|
mgr_busy[0] = dispc_go_busy(0);
|
|
mgr_busy[1] = dispc_go_busy(1);
|
|
mgr_go[0] = false;
|
|
mgr_go[1] = false;
|
|
|
|
/* Commit overlay settings */
|
|
for (i = 0; i < num_ovls; ++i) {
|
|
oc = &dss_cache.overlay_cache[i];
|
|
mc = &dss_cache.manager_cache[oc->channel];
|
|
|
|
if (!oc->dirty)
|
|
continue;
|
|
|
|
if (oc->manual_update && !mc->do_manual_update)
|
|
continue;
|
|
|
|
if (mgr_busy[oc->channel]) {
|
|
busy = true;
|
|
continue;
|
|
}
|
|
|
|
r = configure_overlay(i);
|
|
if (r)
|
|
DSSERR("configure_overlay %d failed\n", i);
|
|
|
|
oc->dirty = false;
|
|
oc->shadow_dirty = true;
|
|
mgr_go[oc->channel] = true;
|
|
}
|
|
|
|
/* Commit manager settings */
|
|
for (i = 0; i < num_mgrs; ++i) {
|
|
mc = &dss_cache.manager_cache[i];
|
|
|
|
if (!mc->dirty)
|
|
continue;
|
|
|
|
if (mc->manual_update && !mc->do_manual_update)
|
|
continue;
|
|
|
|
if (mgr_busy[i]) {
|
|
busy = true;
|
|
continue;
|
|
}
|
|
|
|
configure_manager(i);
|
|
mc->dirty = false;
|
|
mc->shadow_dirty = true;
|
|
mgr_go[i] = true;
|
|
}
|
|
|
|
/* set GO */
|
|
for (i = 0; i < num_mgrs; ++i) {
|
|
mc = &dss_cache.manager_cache[i];
|
|
|
|
if (!mgr_go[i])
|
|
continue;
|
|
|
|
/* We don't need GO with manual update display. LCD iface will
|
|
* always be turned off after frame, and new settings will be
|
|
* taken in to use at next update */
|
|
if (!mc->manual_upd_display)
|
|
dispc_go(i);
|
|
}
|
|
|
|
if (busy)
|
|
r = 1;
|
|
else
|
|
r = 0;
|
|
|
|
return r;
|
|
}
|
|
|
|
/* Configure dispc for partial update. Return possibly modified update
|
|
* area */
|
|
void dss_setup_partial_planes(struct omap_dss_device *dssdev,
|
|
u16 *xi, u16 *yi, u16 *wi, u16 *hi)
|
|
{
|
|
struct overlay_cache_data *oc;
|
|
struct manager_cache_data *mc;
|
|
const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
|
|
struct omap_overlay_manager *mgr;
|
|
int i;
|
|
u16 x, y, w, h;
|
|
unsigned long flags;
|
|
|
|
x = *xi;
|
|
y = *yi;
|
|
w = *wi;
|
|
h = *hi;
|
|
|
|
DSSDBG("dispc_setup_partial_planes %d,%d %dx%d\n",
|
|
*xi, *yi, *wi, *hi);
|
|
|
|
mgr = dssdev->manager;
|
|
|
|
if (!mgr) {
|
|
DSSDBG("no manager\n");
|
|
return;
|
|
}
|
|
|
|
spin_lock_irqsave(&dss_cache.lock, flags);
|
|
|
|
/* We need to show the whole overlay if it is scaled. So look for
|
|
* those, and make the update area larger if found.
|
|
* Also mark the overlay cache dirty */
|
|
for (i = 0; i < num_ovls; ++i) {
|
|
unsigned x1, y1, x2, y2;
|
|
unsigned outw, outh;
|
|
|
|
oc = &dss_cache.overlay_cache[i];
|
|
|
|
if (oc->channel != mgr->id)
|
|
continue;
|
|
|
|
oc->dirty = true;
|
|
|
|
if (!oc->enabled)
|
|
continue;
|
|
|
|
if (!dispc_is_overlay_scaled(oc))
|
|
continue;
|
|
|
|
outw = oc->out_width == 0 ? oc->width : oc->out_width;
|
|
outh = oc->out_height == 0 ? oc->height : oc->out_height;
|
|
|
|
/* is the overlay outside the update region? */
|
|
if (!rectangle_intersects(x, y, w, h,
|
|
oc->pos_x, oc->pos_y,
|
|
outw, outh))
|
|
continue;
|
|
|
|
/* if the overlay totally inside the update region? */
|
|
if (rectangle_subset(oc->pos_x, oc->pos_y, outw, outh,
|
|
x, y, w, h))
|
|
continue;
|
|
|
|
if (x > oc->pos_x)
|
|
x1 = oc->pos_x;
|
|
else
|
|
x1 = x;
|
|
|
|
if (y > oc->pos_y)
|
|
y1 = oc->pos_y;
|
|
else
|
|
y1 = y;
|
|
|
|
if ((x + w) < (oc->pos_x + outw))
|
|
x2 = oc->pos_x + outw;
|
|
else
|
|
x2 = x + w;
|
|
|
|
if ((y + h) < (oc->pos_y + outh))
|
|
y2 = oc->pos_y + outh;
|
|
else
|
|
y2 = y + h;
|
|
|
|
x = x1;
|
|
y = y1;
|
|
w = x2 - x1;
|
|
h = y2 - y1;
|
|
|
|
DSSDBG("changing upd area due to ovl(%d) scaling %d,%d %dx%d\n",
|
|
i, x, y, w, h);
|
|
}
|
|
|
|
mc = &dss_cache.manager_cache[mgr->id];
|
|
mc->do_manual_update = true;
|
|
mc->x = x;
|
|
mc->y = y;
|
|
mc->w = w;
|
|
mc->h = h;
|
|
|
|
configure_dispc();
|
|
|
|
mc->do_manual_update = false;
|
|
|
|
spin_unlock_irqrestore(&dss_cache.lock, flags);
|
|
|
|
*xi = x;
|
|
*yi = y;
|
|
*wi = w;
|
|
*hi = h;
|
|
}
|
|
|
|
void dss_start_update(struct omap_dss_device *dssdev)
|
|
{
|
|
struct manager_cache_data *mc;
|
|
struct overlay_cache_data *oc;
|
|
const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
|
|
const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
|
|
struct omap_overlay_manager *mgr;
|
|
int i;
|
|
|
|
mgr = dssdev->manager;
|
|
|
|
for (i = 0; i < num_ovls; ++i) {
|
|
oc = &dss_cache.overlay_cache[i];
|
|
if (oc->channel != mgr->id)
|
|
continue;
|
|
|
|
oc->shadow_dirty = false;
|
|
}
|
|
|
|
for (i = 0; i < num_mgrs; ++i) {
|
|
mc = &dss_cache.manager_cache[i];
|
|
if (mgr->id != i)
|
|
continue;
|
|
|
|
mc->shadow_dirty = false;
|
|
}
|
|
|
|
dispc_enable_lcd_out(1);
|
|
}
|
|
|
|
static void dss_apply_irq_handler(void *data, u32 mask)
|
|
{
|
|
struct manager_cache_data *mc;
|
|
struct overlay_cache_data *oc;
|
|
const int num_ovls = ARRAY_SIZE(dss_cache.overlay_cache);
|
|
const int num_mgrs = ARRAY_SIZE(dss_cache.manager_cache);
|
|
int i, r;
|
|
bool mgr_busy[2];
|
|
|
|
mgr_busy[0] = dispc_go_busy(0);
|
|
mgr_busy[1] = dispc_go_busy(1);
|
|
|
|
spin_lock(&dss_cache.lock);
|
|
|
|
for (i = 0; i < num_ovls; ++i) {
|
|
oc = &dss_cache.overlay_cache[i];
|
|
if (!mgr_busy[oc->channel])
|
|
oc->shadow_dirty = false;
|
|
}
|
|
|
|
for (i = 0; i < num_mgrs; ++i) {
|
|
mc = &dss_cache.manager_cache[i];
|
|
if (!mgr_busy[i])
|
|
mc->shadow_dirty = false;
|
|
}
|
|
|
|
r = configure_dispc();
|
|
if (r == 1)
|
|
goto end;
|
|
|
|
/* re-read busy flags */
|
|
mgr_busy[0] = dispc_go_busy(0);
|
|
mgr_busy[1] = dispc_go_busy(1);
|
|
|
|
/* keep running as long as there are busy managers, so that
|
|
* we can collect overlay-applied information */
|
|
for (i = 0; i < num_mgrs; ++i) {
|
|
if (mgr_busy[i])
|
|
goto end;
|
|
}
|
|
|
|
omap_dispc_unregister_isr(dss_apply_irq_handler, NULL,
|
|
DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
|
|
DISPC_IRQ_EVSYNC_EVEN);
|
|
dss_cache.irq_enabled = false;
|
|
|
|
end:
|
|
spin_unlock(&dss_cache.lock);
|
|
}
|
|
|
|
static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
|
|
{
|
|
struct overlay_cache_data *oc;
|
|
struct manager_cache_data *mc;
|
|
int i;
|
|
struct omap_overlay *ovl;
|
|
int num_planes_enabled = 0;
|
|
bool use_fifomerge;
|
|
unsigned long flags;
|
|
int r;
|
|
|
|
DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
|
|
|
|
spin_lock_irqsave(&dss_cache.lock, flags);
|
|
|
|
/* Configure overlays */
|
|
for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
|
|
struct omap_dss_device *dssdev;
|
|
|
|
ovl = omap_dss_get_overlay(i);
|
|
|
|
if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
|
|
continue;
|
|
|
|
oc = &dss_cache.overlay_cache[ovl->id];
|
|
|
|
if (!overlay_enabled(ovl)) {
|
|
if (oc->enabled) {
|
|
oc->enabled = false;
|
|
oc->dirty = true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
if (!ovl->info_dirty) {
|
|
if (oc->enabled)
|
|
++num_planes_enabled;
|
|
continue;
|
|
}
|
|
|
|
dssdev = ovl->manager->device;
|
|
|
|
if (dss_check_overlay(ovl, dssdev)) {
|
|
if (oc->enabled) {
|
|
oc->enabled = false;
|
|
oc->dirty = true;
|
|
}
|
|
continue;
|
|
}
|
|
|
|
ovl->info_dirty = false;
|
|
oc->dirty = true;
|
|
|
|
oc->paddr = ovl->info.paddr;
|
|
oc->vaddr = ovl->info.vaddr;
|
|
oc->screen_width = ovl->info.screen_width;
|
|
oc->width = ovl->info.width;
|
|
oc->height = ovl->info.height;
|
|
oc->color_mode = ovl->info.color_mode;
|
|
oc->rotation = ovl->info.rotation;
|
|
oc->rotation_type = ovl->info.rotation_type;
|
|
oc->mirror = ovl->info.mirror;
|
|
oc->pos_x = ovl->info.pos_x;
|
|
oc->pos_y = ovl->info.pos_y;
|
|
oc->out_width = ovl->info.out_width;
|
|
oc->out_height = ovl->info.out_height;
|
|
oc->global_alpha = ovl->info.global_alpha;
|
|
|
|
oc->replication =
|
|
dss_use_replication(dssdev, ovl->info.color_mode);
|
|
|
|
oc->ilace = dssdev->type == OMAP_DISPLAY_TYPE_VENC;
|
|
|
|
oc->channel = ovl->manager->id;
|
|
|
|
oc->enabled = true;
|
|
|
|
oc->manual_update =
|
|
dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
|
|
dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO;
|
|
|
|
++num_planes_enabled;
|
|
}
|
|
|
|
/* Configure managers */
|
|
list_for_each_entry(mgr, &manager_list, list) {
|
|
struct omap_dss_device *dssdev;
|
|
|
|
if (!(mgr->caps & OMAP_DSS_OVL_MGR_CAP_DISPC))
|
|
continue;
|
|
|
|
mc = &dss_cache.manager_cache[mgr->id];
|
|
|
|
if (mgr->device_changed) {
|
|
mgr->device_changed = false;
|
|
mgr->info_dirty = true;
|
|
}
|
|
|
|
if (!mgr->info_dirty)
|
|
continue;
|
|
|
|
if (!mgr->device)
|
|
continue;
|
|
|
|
dssdev = mgr->device;
|
|
|
|
mgr->info_dirty = false;
|
|
mc->dirty = true;
|
|
|
|
mc->default_color = mgr->info.default_color;
|
|
mc->trans_key_type = mgr->info.trans_key_type;
|
|
mc->trans_key = mgr->info.trans_key;
|
|
mc->trans_enabled = mgr->info.trans_enabled;
|
|
mc->alpha_enabled = mgr->info.alpha_enabled;
|
|
|
|
mc->manual_upd_display =
|
|
dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
|
|
|
|
mc->manual_update =
|
|
dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE &&
|
|
dssdev->get_update_mode(dssdev) != OMAP_DSS_UPDATE_AUTO;
|
|
}
|
|
|
|
/* XXX TODO: Try to get fifomerge working. The problem is that it
|
|
* affects both managers, not individually but at the same time. This
|
|
* means the change has to be well synchronized. I guess the proper way
|
|
* is to have a two step process for fifo merge:
|
|
* fifomerge enable:
|
|
* 1. disable other planes, leaving one plane enabled
|
|
* 2. wait until the planes are disabled on HW
|
|
* 3. config merged fifo thresholds, enable fifomerge
|
|
* fifomerge disable:
|
|
* 1. config unmerged fifo thresholds, disable fifomerge
|
|
* 2. wait until fifo changes are in HW
|
|
* 3. enable planes
|
|
*/
|
|
use_fifomerge = false;
|
|
|
|
/* Configure overlay fifos */
|
|
for (i = 0; i < omap_dss_get_num_overlays(); ++i) {
|
|
struct omap_dss_device *dssdev;
|
|
u32 size;
|
|
|
|
ovl = omap_dss_get_overlay(i);
|
|
|
|
if (!(ovl->caps & OMAP_DSS_OVL_CAP_DISPC))
|
|
continue;
|
|
|
|
oc = &dss_cache.overlay_cache[ovl->id];
|
|
|
|
if (!oc->enabled)
|
|
continue;
|
|
|
|
dssdev = ovl->manager->device;
|
|
|
|
size = dispc_get_plane_fifo_size(ovl->id);
|
|
if (use_fifomerge)
|
|
size *= 3;
|
|
|
|
switch (dssdev->type) {
|
|
case OMAP_DISPLAY_TYPE_DPI:
|
|
case OMAP_DISPLAY_TYPE_DBI:
|
|
case OMAP_DISPLAY_TYPE_SDI:
|
|
case OMAP_DISPLAY_TYPE_VENC:
|
|
default_get_overlay_fifo_thresholds(ovl->id, size,
|
|
&oc->burst_size, &oc->fifo_low,
|
|
&oc->fifo_high);
|
|
break;
|
|
#ifdef CONFIG_OMAP2_DSS_DSI
|
|
case OMAP_DISPLAY_TYPE_DSI:
|
|
dsi_get_overlay_fifo_thresholds(ovl->id, size,
|
|
&oc->burst_size, &oc->fifo_low,
|
|
&oc->fifo_high);
|
|
break;
|
|
#endif
|
|
default:
|
|
BUG();
|
|
}
|
|
}
|
|
|
|
r = 0;
|
|
dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
|
|
if (!dss_cache.irq_enabled) {
|
|
r = omap_dispc_register_isr(dss_apply_irq_handler, NULL,
|
|
DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
|
|
DISPC_IRQ_EVSYNC_EVEN);
|
|
dss_cache.irq_enabled = true;
|
|
}
|
|
configure_dispc();
|
|
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
|
|
|
|
spin_unlock_irqrestore(&dss_cache.lock, flags);
|
|
|
|
return r;
|
|
}
|
|
|
|
static int dss_check_manager(struct omap_overlay_manager *mgr)
|
|
{
|
|
/* OMAP supports only graphics source transparency color key and alpha
|
|
* blending simultaneously. See TRM 15.4.2.4.2.2 Alpha Mode */
|
|
|
|
if (mgr->info.alpha_enabled && mgr->info.trans_enabled &&
|
|
mgr->info.trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST)
|
|
return -EINVAL;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int omap_dss_mgr_set_info(struct omap_overlay_manager *mgr,
|
|
struct omap_overlay_manager_info *info)
|
|
{
|
|
int r;
|
|
struct omap_overlay_manager_info old_info;
|
|
|
|
old_info = mgr->info;
|
|
mgr->info = *info;
|
|
|
|
r = dss_check_manager(mgr);
|
|
if (r) {
|
|
mgr->info = old_info;
|
|
return r;
|
|
}
|
|
|
|
mgr->info_dirty = true;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void omap_dss_mgr_get_info(struct omap_overlay_manager *mgr,
|
|
struct omap_overlay_manager_info *info)
|
|
{
|
|
*info = mgr->info;
|
|
}
|
|
|
|
static void omap_dss_add_overlay_manager(struct omap_overlay_manager *manager)
|
|
{
|
|
++num_managers;
|
|
list_add_tail(&manager->list, &manager_list);
|
|
}
|
|
|
|
int dss_init_overlay_managers(struct platform_device *pdev)
|
|
{
|
|
int i, r;
|
|
|
|
spin_lock_init(&dss_cache.lock);
|
|
|
|
INIT_LIST_HEAD(&manager_list);
|
|
|
|
num_managers = 0;
|
|
|
|
for (i = 0; i < 2; ++i) {
|
|
struct omap_overlay_manager *mgr;
|
|
mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
|
|
|
|
BUG_ON(mgr == NULL);
|
|
|
|
switch (i) {
|
|
case 0:
|
|
mgr->name = "lcd";
|
|
mgr->id = OMAP_DSS_CHANNEL_LCD;
|
|
mgr->supported_displays =
|
|
OMAP_DISPLAY_TYPE_DPI | OMAP_DISPLAY_TYPE_DBI |
|
|
OMAP_DISPLAY_TYPE_SDI | OMAP_DISPLAY_TYPE_DSI;
|
|
break;
|
|
case 1:
|
|
mgr->name = "tv";
|
|
mgr->id = OMAP_DSS_CHANNEL_DIGIT;
|
|
mgr->supported_displays = OMAP_DISPLAY_TYPE_VENC;
|
|
break;
|
|
}
|
|
|
|
mgr->set_device = &omap_dss_set_device;
|
|
mgr->unset_device = &omap_dss_unset_device;
|
|
mgr->apply = &omap_dss_mgr_apply;
|
|
mgr->set_manager_info = &omap_dss_mgr_set_info;
|
|
mgr->get_manager_info = &omap_dss_mgr_get_info;
|
|
mgr->wait_for_go = &dss_mgr_wait_for_go;
|
|
|
|
mgr->caps = OMAP_DSS_OVL_MGR_CAP_DISPC;
|
|
|
|
dss_overlay_setup_dispc_manager(mgr);
|
|
|
|
omap_dss_add_overlay_manager(mgr);
|
|
|
|
r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
|
|
&pdev->dev.kobj, "manager%d", i);
|
|
|
|
if (r) {
|
|
DSSERR("failed to create sysfs file\n");
|
|
continue;
|
|
}
|
|
}
|
|
|
|
#ifdef L4_EXAMPLE
|
|
{
|
|
int omap_dss_mgr_apply_l4(struct omap_overlay_manager *mgr)
|
|
{
|
|
DSSDBG("omap_dss_mgr_apply_l4(%s)\n", mgr->name);
|
|
|
|
return 0;
|
|
}
|
|
|
|
struct omap_overlay_manager *mgr;
|
|
mgr = kzalloc(sizeof(*mgr), GFP_KERNEL);
|
|
|
|
BUG_ON(mgr == NULL);
|
|
|
|
mgr->name = "l4";
|
|
mgr->supported_displays =
|
|
OMAP_DISPLAY_TYPE_DBI | OMAP_DISPLAY_TYPE_DSI;
|
|
|
|
mgr->set_device = &omap_dss_set_device;
|
|
mgr->unset_device = &omap_dss_unset_device;
|
|
mgr->apply = &omap_dss_mgr_apply_l4;
|
|
mgr->set_manager_info = &omap_dss_mgr_set_info;
|
|
mgr->get_manager_info = &omap_dss_mgr_get_info;
|
|
|
|
dss_overlay_setup_l4_manager(mgr);
|
|
|
|
omap_dss_add_overlay_manager(mgr);
|
|
|
|
r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
|
|
&pdev->dev.kobj, "managerl4");
|
|
|
|
if (r)
|
|
DSSERR("failed to create sysfs file\n");
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|
|
|
|
void dss_uninit_overlay_managers(struct platform_device *pdev)
|
|
{
|
|
struct omap_overlay_manager *mgr;
|
|
|
|
while (!list_empty(&manager_list)) {
|
|
mgr = list_first_entry(&manager_list,
|
|
struct omap_overlay_manager, list);
|
|
list_del(&mgr->list);
|
|
kobject_del(&mgr->kobj);
|
|
kobject_put(&mgr->kobj);
|
|
kfree(mgr);
|
|
}
|
|
|
|
num_managers = 0;
|
|
}
|
|
|
|
int omap_dss_get_num_overlay_managers(void)
|
|
{
|
|
return num_managers;
|
|
}
|
|
EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
|
|
|
|
struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
|
|
{
|
|
int i = 0;
|
|
struct omap_overlay_manager *mgr;
|
|
|
|
list_for_each_entry(mgr, &manager_list, list) {
|
|
if (i++ == num)
|
|
return mgr;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL(omap_dss_get_overlay_manager);
|
|
|