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path: root/drivers/gpu/drm/omapdrm/dss/apply.c
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Diffstat (limited to 'drivers/gpu/drm/omapdrm/dss/apply.c')
-rw-r--r--drivers/gpu/drm/omapdrm/dss/apply.c1702
1 files changed, 0 insertions, 1702 deletions
diff --git a/drivers/gpu/drm/omapdrm/dss/apply.c b/drivers/gpu/drm/omapdrm/dss/apply.c
deleted file mode 100644
index 663ccc3bf4e5..000000000000
--- a/drivers/gpu/drm/omapdrm/dss/apply.c
+++ /dev/null
@@ -1,1702 +0,0 @@
-/*
- * Copyright (C) 2011 Texas Instruments
- * Author: Tomi Valkeinen <tomi.valkeinen@ti.com>
- *
- * 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 "APPLY"
-
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/spinlock.h>
-#include <linux/jiffies.h>
-
-#include <video/omapdss.h>
-
-#include "dss.h"
-#include "dss_features.h"
-#include "dispc-compat.h"
-
-/*
- * We have 4 levels of cache for the dispc settings. First two are in SW and
- * the latter two in HW.
- *
- * set_info()
- * v
- * +--------------------+
- * | user_info |
- * +--------------------+
- * v
- * apply()
- * v
- * +--------------------+
- * | info |
- * +--------------------+
- * v
- * write_regs()
- * v
- * +--------------------+
- * | shadow registers |
- * +--------------------+
- * v
- * VFP or lcd/digit_enable
- * v
- * +--------------------+
- * | registers |
- * +--------------------+
- */
-
-struct ovl_priv_data {
-
- bool user_info_dirty;
- struct omap_overlay_info user_info;
-
- bool info_dirty;
- struct omap_overlay_info info;
-
- bool shadow_info_dirty;
-
- bool extra_info_dirty;
- bool shadow_extra_info_dirty;
-
- bool enabled;
- u32 fifo_low, fifo_high;
-
- /*
- * True if overlay is to be enabled. Used to check and calculate configs
- * for the overlay before it is enabled in the HW.
- */
- bool enabling;
-};
-
-struct mgr_priv_data {
-
- bool user_info_dirty;
- struct omap_overlay_manager_info user_info;
-
- bool info_dirty;
- struct omap_overlay_manager_info info;
-
- bool shadow_info_dirty;
-
- /* If true, GO bit is up and shadow registers cannot be written.
- * Never true for manual update displays */
- bool busy;
-
- /* If true, dispc output is enabled */
- bool updating;
-
- /* If true, a display is enabled using this manager */
- bool enabled;
-
- bool extra_info_dirty;
- bool shadow_extra_info_dirty;
-
- struct omap_video_timings timings;
- struct dss_lcd_mgr_config lcd_config;
-
- void (*framedone_handler)(void *);
- void *framedone_handler_data;
-};
-
-static struct {
- struct ovl_priv_data ovl_priv_data_array[MAX_DSS_OVERLAYS];
- struct mgr_priv_data mgr_priv_data_array[MAX_DSS_MANAGERS];
-
- bool irq_enabled;
-} dss_data;
-
-/* protects dss_data */
-static spinlock_t data_lock;
-/* lock for blocking functions */
-static DEFINE_MUTEX(apply_lock);
-static DECLARE_COMPLETION(extra_updated_completion);
-
-static void dss_register_vsync_isr(void);
-
-static struct ovl_priv_data *get_ovl_priv(struct omap_overlay *ovl)
-{
- return &dss_data.ovl_priv_data_array[ovl->id];
-}
-
-static struct mgr_priv_data *get_mgr_priv(struct omap_overlay_manager *mgr)
-{
- return &dss_data.mgr_priv_data_array[mgr->id];
-}
-
-static void apply_init_priv(void)
-{
- const int num_ovls = dss_feat_get_num_ovls();
- struct mgr_priv_data *mp;
- int i;
-
- spin_lock_init(&data_lock);
-
- for (i = 0; i < num_ovls; ++i) {
- struct ovl_priv_data *op;
-
- op = &dss_data.ovl_priv_data_array[i];
-
- op->info.color_mode = OMAP_DSS_COLOR_RGB16;
- op->info.rotation_type = OMAP_DSS_ROT_DMA;
-
- op->info.global_alpha = 255;
-
- switch (i) {
- case 0:
- op->info.zorder = 0;
- break;
- case 1:
- op->info.zorder =
- dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 3 : 0;
- break;
- case 2:
- op->info.zorder =
- dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 2 : 0;
- break;
- case 3:
- op->info.zorder =
- dss_has_feature(FEAT_ALPHA_FREE_ZORDER) ? 1 : 0;
- break;
- }
-
- op->user_info = op->info;
- }
-
- /*
- * Initialize some of the lcd_config fields for TV manager, this lets
- * us prevent checking if the manager is LCD or TV at some places
- */
- mp = &dss_data.mgr_priv_data_array[OMAP_DSS_CHANNEL_DIGIT];
-
- mp->lcd_config.video_port_width = 24;
- mp->lcd_config.clock_info.lck_div = 1;
- mp->lcd_config.clock_info.pck_div = 1;
-}
-
-/*
- * A LCD manager's stallmode decides whether it is in manual or auto update. TV
- * manager is always auto update, stallmode field for TV manager is false by
- * default
- */
-static bool ovl_manual_update(struct omap_overlay *ovl)
-{
- struct mgr_priv_data *mp = get_mgr_priv(ovl->manager);
-
- return mp->lcd_config.stallmode;
-}
-
-static bool mgr_manual_update(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- return mp->lcd_config.stallmode;
-}
-
-static int dss_check_settings_low(struct omap_overlay_manager *mgr,
- bool applying)
-{
- struct omap_overlay_info *oi;
- struct omap_overlay_manager_info *mi;
- struct omap_overlay *ovl;
- struct omap_overlay_info *ois[MAX_DSS_OVERLAYS];
- struct ovl_priv_data *op;
- struct mgr_priv_data *mp;
-
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled)
- return 0;
-
- if (applying && mp->user_info_dirty)
- mi = &mp->user_info;
- else
- mi = &mp->info;
-
- /* collect the infos to be tested into the array */
- list_for_each_entry(ovl, &mgr->overlays, list) {
- op = get_ovl_priv(ovl);
-
- if (!op->enabled && !op->enabling)
- oi = NULL;
- else if (applying && op->user_info_dirty)
- oi = &op->user_info;
- else
- oi = &op->info;
-
- ois[ovl->id] = oi;
- }
-
- return dss_mgr_check(mgr, mi, &mp->timings, &mp->lcd_config, ois);
-}
-
-/*
- * check manager and overlay settings using overlay_info from data->info
- */
-static int dss_check_settings(struct omap_overlay_manager *mgr)
-{
- return dss_check_settings_low(mgr, false);
-}
-
-/*
- * check manager and overlay settings using overlay_info from ovl->info if
- * dirty and from data->info otherwise
- */
-static int dss_check_settings_apply(struct omap_overlay_manager *mgr)
-{
- return dss_check_settings_low(mgr, true);
-}
-
-static bool need_isr(void)
-{
- const int num_mgrs = dss_feat_get_num_mgrs();
- int i;
-
- for (i = 0; i < num_mgrs; ++i) {
- struct omap_overlay_manager *mgr;
- struct mgr_priv_data *mp;
- struct omap_overlay *ovl;
-
- mgr = omap_dss_get_overlay_manager(i);
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled)
- continue;
-
- if (mgr_manual_update(mgr)) {
- /* to catch FRAMEDONE */
- if (mp->updating)
- return true;
- } else {
- /* to catch GO bit going down */
- if (mp->busy)
- return true;
-
- /* to write new values to registers */
- if (mp->info_dirty)
- return true;
-
- /* to set GO bit */
- if (mp->shadow_info_dirty)
- return true;
-
- /*
- * NOTE: we don't check extra_info flags for disabled
- * managers, once the manager is enabled, the extra_info
- * related manager changes will be taken in by HW.
- */
-
- /* to write new values to registers */
- if (mp->extra_info_dirty)
- return true;
-
- /* to set GO bit */
- if (mp->shadow_extra_info_dirty)
- return true;
-
- list_for_each_entry(ovl, &mgr->overlays, list) {
- struct ovl_priv_data *op;
-
- op = get_ovl_priv(ovl);
-
- /*
- * NOTE: we check extra_info flags even for
- * disabled overlays, as extra_infos need to be
- * always written.
- */
-
- /* to write new values to registers */
- if (op->extra_info_dirty)
- return true;
-
- /* to set GO bit */
- if (op->shadow_extra_info_dirty)
- return true;
-
- if (!op->enabled)
- continue;
-
- /* to write new values to registers */
- if (op->info_dirty)
- return true;
-
- /* to set GO bit */
- if (op->shadow_info_dirty)
- return true;
- }
- }
- }
-
- return false;
-}
-
-static bool need_go(struct omap_overlay_manager *mgr)
-{
- struct omap_overlay *ovl;
- struct mgr_priv_data *mp;
- struct ovl_priv_data *op;
-
- mp = get_mgr_priv(mgr);
-
- if (mp->shadow_info_dirty || mp->shadow_extra_info_dirty)
- return true;
-
- list_for_each_entry(ovl, &mgr->overlays, list) {
- op = get_ovl_priv(ovl);
- if (op->shadow_info_dirty || op->shadow_extra_info_dirty)
- return true;
- }
-
- return false;
-}
-
-/* returns true if an extra_info field is currently being updated */
-static bool extra_info_update_ongoing(void)
-{
- const int num_mgrs = dss_feat_get_num_mgrs();
- int i;
-
- for (i = 0; i < num_mgrs; ++i) {
- struct omap_overlay_manager *mgr;
- struct omap_overlay *ovl;
- struct mgr_priv_data *mp;
-
- mgr = omap_dss_get_overlay_manager(i);
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled)
- continue;
-
- if (!mp->updating)
- continue;
-
- if (mp->extra_info_dirty || mp->shadow_extra_info_dirty)
- return true;
-
- list_for_each_entry(ovl, &mgr->overlays, list) {
- struct ovl_priv_data *op = get_ovl_priv(ovl);
-
- if (op->extra_info_dirty || op->shadow_extra_info_dirty)
- return true;
- }
- }
-
- return false;
-}
-
-/* wait until no extra_info updates are pending */
-static void wait_pending_extra_info_updates(void)
-{
- bool updating;
- unsigned long flags;
- unsigned long t;
- int r;
-
- spin_lock_irqsave(&data_lock, flags);
-
- updating = extra_info_update_ongoing();
-
- if (!updating) {
- spin_unlock_irqrestore(&data_lock, flags);
- return;
- }
-
- init_completion(&extra_updated_completion);
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- t = msecs_to_jiffies(500);
- r = wait_for_completion_timeout(&extra_updated_completion, t);
- if (r == 0)
- DSSWARN("timeout in wait_pending_extra_info_updates\n");
-}
-
-static struct omap_dss_device *dss_mgr_get_device(struct omap_overlay_manager *mgr)
-{
- struct omap_dss_device *dssdev;
-
- dssdev = mgr->output;
- if (dssdev == NULL)
- return NULL;
-
- while (dssdev->dst)
- dssdev = dssdev->dst;
-
- if (dssdev->driver)
- return dssdev;
- else
- return NULL;
-}
-
-static struct omap_dss_device *dss_ovl_get_device(struct omap_overlay *ovl)
-{
- return ovl->manager ? dss_mgr_get_device(ovl->manager) : NULL;
-}
-
-static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
-{
- unsigned long timeout = msecs_to_jiffies(500);
- u32 irq;
- int r;
-
- if (mgr->output == NULL)
- return -ENODEV;
-
- r = dispc_runtime_get();
- if (r)
- return r;
-
- switch (mgr->output->id) {
- case OMAP_DSS_OUTPUT_VENC:
- irq = DISPC_IRQ_EVSYNC_ODD;
- break;
- case OMAP_DSS_OUTPUT_HDMI:
- irq = DISPC_IRQ_EVSYNC_EVEN;
- break;
- default:
- irq = dispc_mgr_get_vsync_irq(mgr->id);
- break;
- }
-
- r = omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
-
- dispc_runtime_put();
-
- return r;
-}
-
-static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
-{
- unsigned long timeout = msecs_to_jiffies(500);
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- u32 irq;
- unsigned long flags;
- int r;
- int i;
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (mgr_manual_update(mgr)) {
- spin_unlock_irqrestore(&data_lock, flags);
- return 0;
- }
-
- if (!mp->enabled) {
- spin_unlock_irqrestore(&data_lock, flags);
- return 0;
- }
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- r = dispc_runtime_get();
- if (r)
- return r;
-
- irq = dispc_mgr_get_vsync_irq(mgr->id);
-
- i = 0;
- while (1) {
- bool shadow_dirty, dirty;
-
- spin_lock_irqsave(&data_lock, flags);
- dirty = mp->info_dirty;
- shadow_dirty = mp->shadow_info_dirty;
- spin_unlock_irqrestore(&data_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("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;
- }
- }
-
- dispc_runtime_put();
-
- return r;
-}
-
-static int dss_mgr_wait_for_go_ovl(struct omap_overlay *ovl)
-{
- unsigned long timeout = msecs_to_jiffies(500);
- struct ovl_priv_data *op;
- struct mgr_priv_data *mp;
- u32 irq;
- unsigned long flags;
- int r;
- int i;
-
- if (!ovl->manager)
- return 0;
-
- mp = get_mgr_priv(ovl->manager);
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (ovl_manual_update(ovl)) {
- spin_unlock_irqrestore(&data_lock, flags);
- return 0;
- }
-
- if (!mp->enabled) {
- spin_unlock_irqrestore(&data_lock, flags);
- return 0;
- }
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- r = dispc_runtime_get();
- if (r)
- return r;
-
- irq = dispc_mgr_get_vsync_irq(ovl->manager->id);
-
- op = get_ovl_priv(ovl);
- i = 0;
- while (1) {
- bool shadow_dirty, dirty;
-
- spin_lock_irqsave(&data_lock, flags);
- dirty = op->info_dirty;
- shadow_dirty = op->shadow_info_dirty;
- spin_unlock_irqrestore(&data_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;
- }
- }
-
- dispc_runtime_put();
-
- return r;
-}
-
-static void dss_ovl_write_regs(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- struct omap_overlay_info *oi;
- bool replication;
- struct mgr_priv_data *mp;
- int r;
-
- DSSDBG("writing ovl %d regs\n", ovl->id);
-
- if (!op->enabled || !op->info_dirty)
- return;
-
- oi = &op->info;
-
- mp = get_mgr_priv(ovl->manager);
-
- replication = dss_ovl_use_replication(mp->lcd_config, oi->color_mode);
-
- r = dispc_ovl_setup(ovl->id, oi, replication, &mp->timings, false);
- if (r) {
- /*
- * We can't do much here, as this function can be called from
- * vsync interrupt.
- */
- DSSERR("dispc_ovl_setup failed for ovl %d\n", ovl->id);
-
- /* This will leave fifo configurations in a nonoptimal state */
- op->enabled = false;
- dispc_ovl_enable(ovl->id, false);
- return;
- }
-
- op->info_dirty = false;
- if (mp->updating)
- op->shadow_info_dirty = true;
-}
-
-static void dss_ovl_write_regs_extra(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- struct mgr_priv_data *mp;
-
- DSSDBG("writing ovl %d regs extra\n", ovl->id);
-
- if (!op->extra_info_dirty)
- return;
-
- /* note: write also when op->enabled == false, so that the ovl gets
- * disabled */
-
- dispc_ovl_enable(ovl->id, op->enabled);
- dispc_ovl_set_fifo_threshold(ovl->id, op->fifo_low, op->fifo_high);
-
- mp = get_mgr_priv(ovl->manager);
-
- op->extra_info_dirty = false;
- if (mp->updating)
- op->shadow_extra_info_dirty = true;
-}
-
-static void dss_mgr_write_regs(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- struct omap_overlay *ovl;
-
- DSSDBG("writing mgr %d regs\n", mgr->id);
-
- if (!mp->enabled)
- return;
-
- WARN_ON(mp->busy);
-
- /* Commit overlay settings */
- list_for_each_entry(ovl, &mgr->overlays, list) {
- dss_ovl_write_regs(ovl);
- dss_ovl_write_regs_extra(ovl);
- }
-
- if (mp->info_dirty) {
- dispc_mgr_setup(mgr->id, &mp->info);
-
- mp->info_dirty = false;
- if (mp->updating)
- mp->shadow_info_dirty = true;
- }
-}
-
-static void dss_mgr_write_regs_extra(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- DSSDBG("writing mgr %d regs extra\n", mgr->id);
-
- if (!mp->extra_info_dirty)
- return;
-
- dispc_mgr_set_timings(mgr->id, &mp->timings);
-
- /* lcd_config parameters */
- if (dss_mgr_is_lcd(mgr->id))
- dispc_mgr_set_lcd_config(mgr->id, &mp->lcd_config);
-
- mp->extra_info_dirty = false;
- if (mp->updating)
- mp->shadow_extra_info_dirty = true;
-}
-
-static void dss_write_regs(void)
-{
- const int num_mgrs = omap_dss_get_num_overlay_managers();
- int i;
-
- for (i = 0; i < num_mgrs; ++i) {
- struct omap_overlay_manager *mgr;
- struct mgr_priv_data *mp;
- int r;
-
- mgr = omap_dss_get_overlay_manager(i);
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
- continue;
-
- r = dss_check_settings(mgr);
- if (r) {
- DSSERR("cannot write registers for manager %s: "
- "illegal configuration\n", mgr->name);
- continue;
- }
-
- dss_mgr_write_regs(mgr);
- dss_mgr_write_regs_extra(mgr);
- }
-}
-
-static void dss_set_go_bits(void)
-{
- const int num_mgrs = omap_dss_get_num_overlay_managers();
- int i;
-
- for (i = 0; i < num_mgrs; ++i) {
- struct omap_overlay_manager *mgr;
- struct mgr_priv_data *mp;
-
- mgr = omap_dss_get_overlay_manager(i);
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled || mgr_manual_update(mgr) || mp->busy)
- continue;
-
- if (!need_go(mgr))
- continue;
-
- mp->busy = true;
-
- if (!dss_data.irq_enabled && need_isr())
- dss_register_vsync_isr();
-
- dispc_mgr_go(mgr->id);
- }
-
-}
-
-static void mgr_clear_shadow_dirty(struct omap_overlay_manager *mgr)
-{
- struct omap_overlay *ovl;
- struct mgr_priv_data *mp;
- struct ovl_priv_data *op;
-
- mp = get_mgr_priv(mgr);
- mp->shadow_info_dirty = false;
- mp->shadow_extra_info_dirty = false;
-
- list_for_each_entry(ovl, &mgr->overlays, list) {
- op = get_ovl_priv(ovl);
- op->shadow_info_dirty = false;
- op->shadow_extra_info_dirty = false;
- }
-}
-
-static int dss_mgr_connect_compat(struct omap_overlay_manager *mgr,
- struct omap_dss_device *dst)
-{
- return mgr->set_output(mgr, dst);
-}
-
-static void dss_mgr_disconnect_compat(struct omap_overlay_manager *mgr,
- struct omap_dss_device *dst)
-{
- mgr->unset_output(mgr);
-}
-
-static void dss_mgr_start_update_compat(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- unsigned long flags;
- int r;
-
- spin_lock_irqsave(&data_lock, flags);
-
- WARN_ON(mp->updating);
-
- r = dss_check_settings(mgr);
- if (r) {
- DSSERR("cannot start manual update: illegal configuration\n");
- spin_unlock_irqrestore(&data_lock, flags);
- return;
- }
-
- dss_mgr_write_regs(mgr);
- dss_mgr_write_regs_extra(mgr);
-
- mp->updating = true;
-
- if (!dss_data.irq_enabled && need_isr())
- dss_register_vsync_isr();
-
- dispc_mgr_enable_sync(mgr->id);
-
- spin_unlock_irqrestore(&data_lock, flags);
-}
-
-static void dss_apply_irq_handler(void *data, u32 mask);
-
-static void dss_register_vsync_isr(void)
-{
- const int num_mgrs = dss_feat_get_num_mgrs();
- u32 mask;
- int r, i;
-
- mask = 0;
- for (i = 0; i < num_mgrs; ++i)
- mask |= dispc_mgr_get_vsync_irq(i);
-
- for (i = 0; i < num_mgrs; ++i)
- mask |= dispc_mgr_get_framedone_irq(i);
-
- r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
- WARN_ON(r);
-
- dss_data.irq_enabled = true;
-}
-
-static void dss_unregister_vsync_isr(void)
-{
- const int num_mgrs = dss_feat_get_num_mgrs();
- u32 mask;
- int r, i;
-
- mask = 0;
- for (i = 0; i < num_mgrs; ++i)
- mask |= dispc_mgr_get_vsync_irq(i);
-
- for (i = 0; i < num_mgrs; ++i)
- mask |= dispc_mgr_get_framedone_irq(i);
-
- r = omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, mask);
- WARN_ON(r);
-
- dss_data.irq_enabled = false;
-}
-
-static void dss_apply_irq_handler(void *data, u32 mask)
-{
- const int num_mgrs = dss_feat_get_num_mgrs();
- int i;
- bool extra_updating;
-
- spin_lock(&data_lock);
-
- /* clear busy, updating flags, shadow_dirty flags */
- for (i = 0; i < num_mgrs; i++) {
- struct omap_overlay_manager *mgr;
- struct mgr_priv_data *mp;
-
- mgr = omap_dss_get_overlay_manager(i);
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled)
- continue;
-
- mp->updating = dispc_mgr_is_enabled(i);
-
- if (!mgr_manual_update(mgr)) {
- bool was_busy = mp->busy;
- mp->busy = dispc_mgr_go_busy(i);
-
- if (was_busy && !mp->busy)
- mgr_clear_shadow_dirty(mgr);
- }
- }
-
- dss_write_regs();
- dss_set_go_bits();
-
- extra_updating = extra_info_update_ongoing();
- if (!extra_updating)
- complete_all(&extra_updated_completion);
-
- /* call framedone handlers for manual update displays */
- for (i = 0; i < num_mgrs; i++) {
- struct omap_overlay_manager *mgr;
- struct mgr_priv_data *mp;
-
- mgr = omap_dss_get_overlay_manager(i);
- mp = get_mgr_priv(mgr);
-
- if (!mgr_manual_update(mgr) || !mp->framedone_handler)
- continue;
-
- if (mask & dispc_mgr_get_framedone_irq(i))
- mp->framedone_handler(mp->framedone_handler_data);
- }
-
- if (!need_isr())
- dss_unregister_vsync_isr();
-
- spin_unlock(&data_lock);
-}
-
-static void omap_dss_mgr_apply_ovl(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op;
-
- op = get_ovl_priv(ovl);
-
- if (!op->user_info_dirty)
- return;
-
- op->user_info_dirty = false;
- op->info_dirty = true;
- op->info = op->user_info;
-}
-
-static void omap_dss_mgr_apply_mgr(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp;
-
- mp = get_mgr_priv(mgr);
-
- if (!mp->user_info_dirty)
- return;
-
- mp->user_info_dirty = false;
- mp->info_dirty = true;
- mp->info = mp->user_info;
-}
-
-static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
-{
- unsigned long flags;
- struct omap_overlay *ovl;
- int r;
-
- DSSDBG("omap_dss_mgr_apply(%s)\n", mgr->name);
-
- spin_lock_irqsave(&data_lock, flags);
-
- r = dss_check_settings_apply(mgr);
- if (r) {
- spin_unlock_irqrestore(&data_lock, flags);
- DSSERR("failed to apply settings: illegal configuration.\n");
- return r;
- }
-
- /* Configure overlays */
- list_for_each_entry(ovl, &mgr->overlays, list)
- omap_dss_mgr_apply_ovl(ovl);
-
- /* Configure manager */
- omap_dss_mgr_apply_mgr(mgr);
-
- dss_write_regs();
- dss_set_go_bits();
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- return 0;
-}
-
-static void dss_apply_ovl_enable(struct omap_overlay *ovl, bool enable)
-{
- struct ovl_priv_data *op;
-
- op = get_ovl_priv(ovl);
-
- if (op->enabled == enable)
- return;
-
- op->enabled = enable;
- op->extra_info_dirty = true;
-}
-
-static void dss_apply_ovl_fifo_thresholds(struct omap_overlay *ovl,
- u32 fifo_low, u32 fifo_high)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
-
- if (op->fifo_low == fifo_low && op->fifo_high == fifo_high)
- return;
-
- op->fifo_low = fifo_low;
- op->fifo_high = fifo_high;
- op->extra_info_dirty = true;
-}
-
-static void dss_ovl_setup_fifo(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- u32 fifo_low, fifo_high;
- bool use_fifo_merge = false;
-
- if (!op->enabled && !op->enabling)
- return;
-
- dispc_ovl_compute_fifo_thresholds(ovl->id, &fifo_low, &fifo_high,
- use_fifo_merge, ovl_manual_update(ovl));
-
- dss_apply_ovl_fifo_thresholds(ovl, fifo_low, fifo_high);
-}
-
-static void dss_mgr_setup_fifos(struct omap_overlay_manager *mgr)
-{
- struct omap_overlay *ovl;
- struct mgr_priv_data *mp;
-
- mp = get_mgr_priv(mgr);
-
- if (!mp->enabled)
- return;
-
- list_for_each_entry(ovl, &mgr->overlays, list)
- dss_ovl_setup_fifo(ovl);
-}
-
-static void dss_setup_fifos(void)
-{
- const int num_mgrs = omap_dss_get_num_overlay_managers();
- struct omap_overlay_manager *mgr;
- int i;
-
- for (i = 0; i < num_mgrs; ++i) {
- mgr = omap_dss_get_overlay_manager(i);
- dss_mgr_setup_fifos(mgr);
- }
-}
-
-static int dss_mgr_enable_compat(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- unsigned long flags;
- int r;
-
- mutex_lock(&apply_lock);
-
- if (mp->enabled)
- goto out;
-
- spin_lock_irqsave(&data_lock, flags);
-
- mp->enabled = true;
-
- r = dss_check_settings(mgr);
- if (r) {
- DSSERR("failed to enable manager %d: check_settings failed\n",
- mgr->id);
- goto err;
- }
-
- dss_setup_fifos();
-
- dss_write_regs();
- dss_set_go_bits();
-
- if (!mgr_manual_update(mgr))
- mp->updating = true;
-
- if (!dss_data.irq_enabled && need_isr())
- dss_register_vsync_isr();
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- if (!mgr_manual_update(mgr))
- dispc_mgr_enable_sync(mgr->id);
-
-out:
- mutex_unlock(&apply_lock);
-
- return 0;
-
-err:
- mp->enabled = false;
- spin_unlock_irqrestore(&data_lock, flags);
- mutex_unlock(&apply_lock);
- return r;
-}
-
-static void dss_mgr_disable_compat(struct omap_overlay_manager *mgr)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- unsigned long flags;
-
- mutex_lock(&apply_lock);
-
- if (!mp->enabled)
- goto out;
-
- wait_pending_extra_info_updates();
-
- if (!mgr_manual_update(mgr))
- dispc_mgr_disable_sync(mgr->id);
-
- spin_lock_irqsave(&data_lock, flags);
-
- mp->updating = false;
- mp->enabled = false;
-
- spin_unlock_irqrestore(&data_lock, flags);
-
-out:
- mutex_unlock(&apply_lock);
-}
-
-static int dss_mgr_set_info(struct omap_overlay_manager *mgr,
- struct omap_overlay_manager_info *info)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- unsigned long flags;
- int r;
-
- r = dss_mgr_simple_check(mgr, info);
- if (r)
- return r;
-
- spin_lock_irqsave(&data_lock, flags);
-
- mp->user_info = *info;
- mp->user_info_dirty = true;
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- return 0;
-}
-
-static void dss_mgr_get_info(struct omap_overlay_manager *mgr,
- struct omap_overlay_manager_info *info)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- unsigned long flags;
-
- spin_lock_irqsave(&data_lock, flags);
-
- *info = mp->user_info;
-
- spin_unlock_irqrestore(&data_lock, flags);
-}
-
-static int dss_mgr_set_output(struct omap_overlay_manager *mgr,
- struct omap_dss_device *output)
-{
- int r;
-
- mutex_lock(&apply_lock);
-
- if (mgr->output) {
- DSSERR("manager %s is already connected to an output\n",
- mgr->name);
- r = -EINVAL;
- goto err;
- }
-
- if ((mgr->supported_outputs & output->id) == 0) {
- DSSERR("output does not support manager %s\n",
- mgr->name);
- r = -EINVAL;
- goto err;
- }
-
- output->manager = mgr;
- mgr->output = output;
-
- mutex_unlock(&apply_lock);
-
- return 0;
-err:
- mutex_unlock(&apply_lock);
- return r;
-}
-
-static int dss_mgr_unset_output(struct omap_overlay_manager *mgr)
-{
- int r;
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
- unsigned long flags;
-
- mutex_lock(&apply_lock);
-
- if (!mgr->output) {
- DSSERR("failed to unset output, output not set\n");
- r = -EINVAL;
- goto err;
- }
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (mp->enabled) {
- DSSERR("output can't be unset when manager is enabled\n");
- r = -EINVAL;
- goto err1;
- }
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- mgr->output->manager = NULL;
- mgr->output = NULL;
-
- mutex_unlock(&apply_lock);
-
- return 0;
-err1:
- spin_unlock_irqrestore(&data_lock, flags);
-err:
- mutex_unlock(&apply_lock);
-
- return r;
-}
-
-static void dss_apply_mgr_timings(struct omap_overlay_manager *mgr,
- const struct omap_video_timings *timings)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- mp->timings = *timings;
- mp->extra_info_dirty = true;
-}
-
-static void dss_mgr_set_timings_compat(struct omap_overlay_manager *mgr,
- const struct omap_video_timings *timings)
-{
- unsigned long flags;
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (mp->updating) {
- DSSERR("cannot set timings for %s: manager needs to be disabled\n",
- mgr->name);
- goto out;
- }
-
- dss_apply_mgr_timings(mgr, timings);
-out:
- spin_unlock_irqrestore(&data_lock, flags);
-}
-
-static void dss_apply_mgr_lcd_config(struct omap_overlay_manager *mgr,
- const struct dss_lcd_mgr_config *config)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- mp->lcd_config = *config;
- mp->extra_info_dirty = true;
-}
-
-static void dss_mgr_set_lcd_config_compat(struct omap_overlay_manager *mgr,
- const struct dss_lcd_mgr_config *config)
-{
- unsigned long flags;
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (mp->enabled) {
- DSSERR("cannot apply lcd config for %s: manager needs to be disabled\n",
- mgr->name);
- goto out;
- }
-
- dss_apply_mgr_lcd_config(mgr, config);
-out:
- spin_unlock_irqrestore(&data_lock, flags);
-}
-
-static int dss_ovl_set_info(struct omap_overlay *ovl,
- struct omap_overlay_info *info)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
- int r;
-
- r = dss_ovl_simple_check(ovl, info);
- if (r)
- return r;
-
- spin_lock_irqsave(&data_lock, flags);
-
- op->user_info = *info;
- op->user_info_dirty = true;
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- return 0;
-}
-
-static void dss_ovl_get_info(struct omap_overlay *ovl,
- struct omap_overlay_info *info)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
-
- spin_lock_irqsave(&data_lock, flags);
-
- *info = op->user_info;
-
- spin_unlock_irqrestore(&data_lock, flags);
-}
-
-static int dss_ovl_set_manager(struct omap_overlay *ovl,
- struct omap_overlay_manager *mgr)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
- int r;
-
- if (!mgr)
- return -EINVAL;
-
- mutex_lock(&apply_lock);
-
- if (ovl->manager) {
- DSSERR("overlay '%s' already has a manager '%s'\n",
- ovl->name, ovl->manager->name);
- r = -EINVAL;
- goto err;
- }
-
- r = dispc_runtime_get();
- if (r)
- goto err;
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (op->enabled) {
- spin_unlock_irqrestore(&data_lock, flags);
- DSSERR("overlay has to be disabled to change the manager\n");
- r = -EINVAL;
- goto err1;
- }
-
- dispc_ovl_set_channel_out(ovl->id, mgr->id);
-
- ovl->manager = mgr;
- list_add_tail(&ovl->list, &mgr->overlays);
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- dispc_runtime_put();
-
- mutex_unlock(&apply_lock);
-
- return 0;
-
-err1:
- dispc_runtime_put();
-err:
- mutex_unlock(&apply_lock);
- return r;
-}
-
-static int dss_ovl_unset_manager(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
- int r;
-
- mutex_lock(&apply_lock);
-
- if (!ovl->manager) {
- DSSERR("failed to detach overlay: manager not set\n");
- r = -EINVAL;
- goto err;
- }
-
- spin_lock_irqsave(&data_lock, flags);
-
- if (op->enabled) {
- spin_unlock_irqrestore(&data_lock, flags);
- DSSERR("overlay has to be disabled to unset the manager\n");
- r = -EINVAL;
- goto err;
- }
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- /* wait for pending extra_info updates to ensure the ovl is disabled */
- wait_pending_extra_info_updates();
-
- /*
- * For a manual update display, there is no guarantee that the overlay
- * is really disabled in HW, we may need an extra update from this
- * manager before the configurations can go in. Return an error if the
- * overlay needed an update from the manager.
- *
- * TODO: Instead of returning an error, try to do a dummy manager update
- * here to disable the overlay in hardware. Use the *GATED fields in
- * the DISPC_CONFIG registers to do a dummy update.
- */
- spin_lock_irqsave(&data_lock, flags);
-
- if (ovl_manual_update(ovl) && op->extra_info_dirty) {
- spin_unlock_irqrestore(&data_lock, flags);
- DSSERR("need an update to change the manager\n");
- r = -EINVAL;
- goto err;
- }
-
- ovl->manager = NULL;
- list_del(&ovl->list);
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- mutex_unlock(&apply_lock);
-
- return 0;
-err:
- mutex_unlock(&apply_lock);
- return r;
-}
-
-static bool dss_ovl_is_enabled(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
- bool e;
-
- spin_lock_irqsave(&data_lock, flags);
-
- e = op->enabled;
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- return e;
-}
-
-static int dss_ovl_enable(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
- int r;
-
- mutex_lock(&apply_lock);
-
- if (op->enabled) {
- r = 0;
- goto err1;
- }
-
- if (ovl->manager == NULL || ovl->manager->output == NULL) {
- r = -EINVAL;
- goto err1;
- }
-
- spin_lock_irqsave(&data_lock, flags);
-
- op->enabling = true;
-
- r = dss_check_settings(ovl->manager);
- if (r) {
- DSSERR("failed to enable overlay %d: check_settings failed\n",
- ovl->id);
- goto err2;
- }
-
- dss_setup_fifos();
-
- op->enabling = false;
- dss_apply_ovl_enable(ovl, true);
-
- dss_write_regs();
- dss_set_go_bits();
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- mutex_unlock(&apply_lock);
-
- return 0;
-err2:
- op->enabling = false;
- spin_unlock_irqrestore(&data_lock, flags);
-err1:
- mutex_unlock(&apply_lock);
- return r;
-}
-
-static int dss_ovl_disable(struct omap_overlay *ovl)
-{
- struct ovl_priv_data *op = get_ovl_priv(ovl);
- unsigned long flags;
- int r;
-
- mutex_lock(&apply_lock);
-
- if (!op->enabled) {
- r = 0;
- goto err;
- }
-
- if (ovl->manager == NULL || ovl->manager->output == NULL) {
- r = -EINVAL;
- goto err;
- }
-
- spin_lock_irqsave(&data_lock, flags);
-
- dss_apply_ovl_enable(ovl, false);
- dss_write_regs();
- dss_set_go_bits();
-
- spin_unlock_irqrestore(&data_lock, flags);
-
- mutex_unlock(&apply_lock);
-
- return 0;
-
-err:
- mutex_unlock(&apply_lock);
- return r;
-}
-
-static int dss_mgr_register_framedone_handler_compat(struct omap_overlay_manager *mgr,
- void (*handler)(void *), void *data)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- if (mp->framedone_handler)
- return -EBUSY;
-
- mp->framedone_handler = handler;
- mp->framedone_handler_data = data;
-
- return 0;
-}
-
-static void dss_mgr_unregister_framedone_handler_compat(struct omap_overlay_manager *mgr,
- void (*handler)(void *), void *data)
-{
- struct mgr_priv_data *mp = get_mgr_priv(mgr);
-
- WARN_ON(mp->framedone_handler != handler ||
- mp->framedone_handler_data != data);
-
- mp->framedone_handler = NULL;
- mp->framedone_handler_data = NULL;
-}
-
-static const struct dss_mgr_ops apply_mgr_ops = {
- .connect = dss_mgr_connect_compat,
- .disconnect = dss_mgr_disconnect_compat,
- .start_update = dss_mgr_start_update_compat,
- .enable = dss_mgr_enable_compat,
- .disable = dss_mgr_disable_compat,
- .set_timings = dss_mgr_set_timings_compat,
- .set_lcd_config = dss_mgr_set_lcd_config_compat,
- .register_framedone_handler = dss_mgr_register_framedone_handler_compat,
- .unregister_framedone_handler = dss_mgr_unregister_framedone_handler_compat,
-};
-
-static int compat_refcnt;
-static DEFINE_MUTEX(compat_init_lock);
-
-int omapdss_compat_init(void)
-{
- struct platform_device *pdev = dss_get_core_pdev();
- int i, r;
-
- mutex_lock(&compat_init_lock);
-
- if (compat_refcnt++ > 0)
- goto out;
-
- apply_init_priv();
-
- dss_init_overlay_managers_sysfs(pdev);
- dss_init_overlays(pdev);
-
- for (i = 0; i < omap_dss_get_num_overlay_managers(); i++) {
- struct omap_overlay_manager *mgr;
-
- mgr = omap_dss_get_overlay_manager(i);
-
- mgr->set_output = &dss_mgr_set_output;
- mgr->unset_output = &dss_mgr_unset_output;
- mgr->apply = &omap_dss_mgr_apply;
- mgr->set_manager_info = &dss_mgr_set_info;
- mgr->get_manager_info = &dss_mgr_get_info;
- mgr->wait_for_go = &dss_mgr_wait_for_go;
- mgr->wait_for_vsync = &dss_mgr_wait_for_vsync;
- mgr->get_device = &dss_mgr_get_device;
- }
-
- for (i = 0; i < omap_dss_get_num_overlays(); i++) {
- struct omap_overlay *ovl = omap_dss_get_overlay(i);
-
- ovl->is_enabled = &dss_ovl_is_enabled;
- ovl->enable = &dss_ovl_enable;
- ovl->disable = &dss_ovl_disable;
- ovl->set_manager = &dss_ovl_set_manager;
- ovl->unset_manager = &dss_ovl_unset_manager;
- ovl->set_overlay_info = &dss_ovl_set_info;
- ovl->get_overlay_info = &dss_ovl_get_info;
- ovl->wait_for_go = &dss_mgr_wait_for_go_ovl;
- ovl->get_device = &dss_ovl_get_device;
- }
-
- r = dss_install_mgr_ops(&apply_mgr_ops);
- if (r)
- goto err_mgr_ops;
-
- r = display_init_sysfs(pdev);
- if (r)
- goto err_disp_sysfs;
-
- dispc_runtime_get();
-
- r = dss_dispc_initialize_irq();
- if (r)
- goto err_init_irq;
-
- dispc_runtime_put();
-
-out:
- mutex_unlock(&compat_init_lock);
-
- return 0;
-
-err_init_irq:
- dispc_runtime_put();
- display_uninit_sysfs(pdev);
-
-err_disp_sysfs:
- dss_uninstall_mgr_ops();
-
-err_mgr_ops:
- dss_uninit_overlay_managers_sysfs(pdev);
- dss_uninit_overlays(pdev);
-
- compat_refcnt--;
-
- mutex_unlock(&compat_init_lock);
-
- return r;
-}
-EXPORT_SYMBOL(omapdss_compat_init);
-
-void omapdss_compat_uninit(void)
-{
- struct platform_device *pdev = dss_get_core_pdev();
-
- mutex_lock(&compat_init_lock);
-
- if (--compat_refcnt > 0)
- goto out;
-
- dss_dispc_uninitialize_irq();
-
- display_uninit_sysfs(pdev);
-
- dss_uninstall_mgr_ops();
-
- dss_uninit_overlay_managers_sysfs(pdev);
- dss_uninit_overlays(pdev);
-out:
- mutex_unlock(&compat_init_lock);
-}
-EXPORT_SYMBOL(omapdss_compat_uninit);