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path: root/drivers/video/omap2/dss/manager.c
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Diffstat (limited to 'drivers/video/omap2/dss/manager.c')
-rw-r--r--drivers/video/omap2/dss/manager.c1221
1 files changed, 126 insertions, 1095 deletions
diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c
index 6e63845cc7d7..d1858e71c64e 100644
--- a/drivers/video/omap2/dss/manager.c
+++ b/drivers/video/omap2/dss/manager.c
@@ -26,17 +26,15 @@
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <linux/spinlock.h>
#include <linux/jiffies.h>
#include <video/omapdss.h>
-#include <plat/cpu.h>
#include "dss.h"
#include "dss_features.h"
static int num_managers;
-static struct list_head manager_list;
+static struct omap_overlay_manager *managers;
static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf)
{
@@ -106,7 +104,11 @@ put_device:
static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%#x\n", mgr->info.default_color);
+ struct omap_overlay_manager_info info;
+
+ mgr->get_manager_info(mgr, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%#x\n", info.default_color);
}
static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr,
@@ -144,8 +146,11 @@ static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr,
char *buf)
{
enum omap_dss_trans_key_type key_type;
+ struct omap_overlay_manager_info info;
+
+ mgr->get_manager_info(mgr, &info);
- key_type = mgr->info.trans_key_type;
+ key_type = info.trans_key_type;
BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str));
return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]);
@@ -185,7 +190,11 @@ static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr,
static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%#x\n", mgr->info.trans_key);
+ struct omap_overlay_manager_info info;
+
+ mgr->get_manager_info(mgr, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%#x\n", info.trans_key);
}
static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
@@ -217,7 +226,11 @@ static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr,
static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled);
+ struct omap_overlay_manager_info info;
+
+ mgr->get_manager_info(mgr, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.trans_enabled);
}
static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
@@ -249,10 +262,14 @@ static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr,
static ssize_t manager_alpha_blending_enabled_show(
struct omap_overlay_manager *mgr, char *buf)
{
+ struct omap_overlay_manager_info info;
+
+ mgr->get_manager_info(mgr, &info);
+
WARN_ON(!dss_has_feature(FEAT_ALPHA_FIXED_ZORDER));
return snprintf(buf, PAGE_SIZE, "%d\n",
- mgr->info.partial_alpha_enabled);
+ info.partial_alpha_enabled);
}
static ssize_t manager_alpha_blending_enabled_store(
@@ -287,7 +304,11 @@ static ssize_t manager_alpha_blending_enabled_store(
static ssize_t manager_cpr_enable_show(struct omap_overlay_manager *mgr,
char *buf)
{
- return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.cpr_enable);
+ struct omap_overlay_manager_info info;
+
+ mgr->get_manager_info(mgr, &info);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", info.cpr_enable);
}
static ssize_t manager_cpr_enable_store(struct omap_overlay_manager *mgr,
@@ -469,143 +490,6 @@ static struct kobj_type manager_ktype = {
.default_attrs = manager_sysfs_attrs,
};
-/*
- * We have 4 levels of cache for the dispc settings. First two are in SW and
- * the latter two in HW.
- *
- * +--------------------+
- * |overlay/manager_info|
- * +--------------------+
- * v
- * apply()
- * v
- * +--------------------+
- * | dss_cache |
- * +--------------------+
- * v
- * configure()
- * v
- * +--------------------+
- * | shadow registers |
- * +--------------------+
- * v
- * VFP or lcd/digit_enable
- * v
- * +--------------------+
- * | registers |
- * +--------------------+
- */
-
-struct overlay_cache_data {
- /* If true, cache changed, but not written to shadow registers. Set
- * in apply(), cleared when registers written. */
- bool dirty;
- /* If true, shadow registers contain changed values not yet in real
- * registers. Set when writing to shadow registers, cleared at
- * VSYNC/EVSYNC */
- bool shadow_dirty;
-
- bool enabled;
-
- struct omap_overlay_info info;
-
- enum omap_channel channel;
- bool replication;
- bool ilace;
-
- u32 fifo_low;
- u32 fifo_high;
-};
-
-struct manager_cache_data {
- /* If true, cache changed, but not written to shadow registers. Set
- * in apply(), cleared when registers written. */
- bool dirty;
- /* If true, shadow registers contain changed values not yet in real
- * registers. Set when writing to shadow registers, cleared at
- * VSYNC/EVSYNC */
- bool shadow_dirty;
-
- struct omap_overlay_manager_info info;
-
- bool manual_update;
- bool do_manual_update;
-
- /* manual update region */
- u16 x, y, w, h;
-
- /* enlarge the update area if the update area contains scaled
- * overlays */
- bool enlarge_update_area;
-};
-
-static struct {
- spinlock_t lock;
- struct overlay_cache_data overlay_cache[MAX_DSS_OVERLAYS];
- struct manager_cache_data manager_cache[MAX_DSS_MANAGERS];
-
- bool irq_enabled;
-} dss_cache;
-
-
-
-static int omap_dss_set_device(struct omap_overlay_manager *mgr,
- struct omap_dss_device *dssdev)
-{
- int i;
- int r;
-
- if (dssdev->manager) {
- DSSERR("display '%s' already has a manager '%s'\n",
- dssdev->name, dssdev->manager->name);
- return -EINVAL;
- }
-
- if ((mgr->supported_displays & dssdev->type) == 0) {
- DSSERR("display '%s' does not support manager '%s'\n",
- dssdev->name, mgr->name);
- return -EINVAL;
- }
-
- for (i = 0; i < mgr->num_overlays; i++) {
- struct omap_overlay *ovl = mgr->overlays[i];
-
- if (ovl->manager != mgr || !ovl->info.enabled)
- continue;
-
- r = dss_check_overlay(ovl, dssdev);
- if (r)
- return r;
- }
-
- dssdev->manager = mgr;
- mgr->device = dssdev;
- mgr->device_changed = true;
-
- return 0;
-}
-
-static int omap_dss_unset_device(struct omap_overlay_manager *mgr)
-{
- if (!mgr->device) {
- DSSERR("failed to unset display, display not set.\n");
- return -EINVAL;
- }
-
- /*
- * Don't allow currently enabled displays to have the overlay manager
- * pulled out from underneath them
- */
- if (mgr->device->state != OMAP_DSS_DISPLAY_DISABLED)
- return -EINVAL;
-
- mgr->device->manager = NULL;
- mgr->device = NULL;
- mgr->device_changed = true;
-
- return 0;
-}
-
static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
{
unsigned long timeout = msecs_to_jiffies(500);
@@ -624,1022 +508,169 @@ static int dss_mgr_wait_for_vsync(struct omap_overlay_manager *mgr)
return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout);
}
-static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr)
-{
- unsigned long timeout = msecs_to_jiffies(500);
- struct manager_cache_data *mc;
- u32 irq;
- int r;
- int i;
- struct omap_dss_device *dssdev = mgr->device;
-
- if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return 0;
-
- if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
- return 0;
-
- if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
- || dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
- irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
- } else {
- irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
- DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
- }
-
- mc = &dss_cache.manager_cache[mgr->id];
- i = 0;
- while (1) {
- unsigned long flags;
- bool shadow_dirty, dirty;
-
- spin_lock_irqsave(&dss_cache.lock, flags);
- dirty = mc->dirty;
- shadow_dirty = mc->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("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);
- struct overlay_cache_data *oc;
- struct omap_dss_device *dssdev;
- u32 irq;
- int r;
- int i;
-
- if (!ovl->manager)
- return 0;
-
- dssdev = ovl->manager->device;
-
- if (!dssdev || dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return 0;
-
- if (dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE)
- return 0;
-
- if (dssdev->type == OMAP_DISPLAY_TYPE_VENC
- || dssdev->type == OMAP_DISPLAY_TYPE_HDMI) {
- irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN;
- } else {
- irq = (dssdev->manager->id == OMAP_DSS_CHANNEL_LCD) ?
- DISPC_IRQ_VSYNC : DISPC_IRQ_VSYNC2;
- }
-
- 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)
-{
- struct omap_overlay_info *oi = &oc->info;
-
- if (oi->out_width != 0 && oi->width != oi->out_width)
- return true;
-
- if (oi->out_height != 0 && oi->height != oi->out_height)
- return true;
-
- return false;
-}
-
-static int configure_overlay(enum omap_plane plane)
+int dss_init_overlay_managers(struct platform_device *pdev)
{
- struct overlay_cache_data *c;
- struct manager_cache_data *mc;
- struct omap_overlay_info *oi, new_oi;
- struct omap_overlay_manager_info *mi;
- u16 outw, outh;
- u16 x, y, w, h;
- u32 paddr;
- int r;
- u16 orig_w, orig_h, orig_outw, orig_outh;
+ int i, r;
- DSSDBGF("%d", plane);
+ num_managers = dss_feat_get_num_mgrs();
- c = &dss_cache.overlay_cache[plane];
- oi = &c->info;
+ managers = kzalloc(sizeof(struct omap_overlay_manager) * num_managers,
+ GFP_KERNEL);
- if (!c->enabled) {
- dispc_ovl_enable(plane, 0);
- return 0;
- }
+ BUG_ON(managers == NULL);
- mc = &dss_cache.manager_cache[c->channel];
- mi = &mc->info;
-
- x = oi->pos_x;
- y = oi->pos_y;
- w = oi->width;
- h = oi->height;
- outw = oi->out_width == 0 ? oi->width : oi->out_width;
- outh = oi->out_height == 0 ? oi->height : oi->out_height;
- paddr = oi->paddr;
-
- orig_w = w;
- orig_h = h;
- orig_outw = outw;
- orig_outh = outh;
-
- if (mc->manual_update && mc->do_manual_update) {
- unsigned bpp;
- unsigned scale_x_m = w, scale_x_d = outw;
- unsigned scale_y_m = h, scale_y_d = outh;
-
- /* 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_ovl_enable(plane, 0);
- return 0;
- }
+ for (i = 0; i < num_managers; ++i) {
+ struct omap_overlay_manager *mgr = &managers[i];
- switch (oi->color_mode) {
- case OMAP_DSS_COLOR_NV12:
- bpp = 8;
- break;
- case OMAP_DSS_COLOR_RGB16:
- case OMAP_DSS_COLOR_ARGB16:
- case OMAP_DSS_COLOR_YUV2:
- case OMAP_DSS_COLOR_UYVY:
- case OMAP_DSS_COLOR_RGBA16:
- case OMAP_DSS_COLOR_RGBX16:
- case OMAP_DSS_COLOR_ARGB16_1555:
- case OMAP_DSS_COLOR_XRGB16_1555:
- bpp = 16;
+ switch (i) {
+ case 0:
+ mgr->name = "lcd";
+ mgr->id = OMAP_DSS_CHANNEL_LCD;
break;
-
- case OMAP_DSS_COLOR_RGB24P:
- bpp = 24;
+ case 1:
+ mgr->name = "tv";
+ mgr->id = OMAP_DSS_CHANNEL_DIGIT;
break;
-
- case OMAP_DSS_COLOR_RGB24U:
- case OMAP_DSS_COLOR_ARGB32:
- case OMAP_DSS_COLOR_RGBA32:
- case OMAP_DSS_COLOR_RGBX32:
- bpp = 32;
+ case 2:
+ mgr->name = "lcd2";
+ mgr->id = OMAP_DSS_CHANNEL_LCD2;
break;
-
- default:
- BUG();
}
- if (mc->x > oi->pos_x) {
- x = 0;
- outw -= (mc->x - oi->pos_x);
- paddr += (mc->x - oi->pos_x) *
- scale_x_m / scale_x_d * bpp / 8;
- } else {
- x = oi->pos_x - mc->x;
- }
-
- if (mc->y > oi->pos_y) {
- y = 0;
- outh -= (mc->y - oi->pos_y);
- paddr += (mc->y - oi->pos_y) *
- scale_y_m / scale_y_d *
- oi->screen_width * bpp / 8;
- } else {
- y = oi->pos_y - mc->y;
- }
-
- if (mc->w < (x + outw))
- outw -= (x + outw) - (mc->w);
-
- if (mc->h < (y + outh))
- outh -= (y + outh) - (mc->h);
-
- w = w * outw / orig_outw;
- h = h * outh / orig_outh;
-
- /* YUV mode overlay's input width has to be even and the
- * algorithm above may adjust the width to be odd.
- *
- * Here we adjust the width if needed, preferring to increase
- * the width if the original width was bigger.
- */
- if ((w & 1) &&
- (oi->color_mode == OMAP_DSS_COLOR_YUV2 ||
- oi->color_mode == OMAP_DSS_COLOR_UYVY)) {
- if (orig_w > w)
- w += 1;
- else
- w -= 1;
- }
- }
-
- new_oi = *oi;
-
- /* update new_oi members which could have been possibly updated */
- new_oi.pos_x = x;
- new_oi.pos_y = y;
- new_oi.width = w;
- new_oi.height = h;
- new_oi.out_width = outw;
- new_oi.out_height = outh;
- new_oi.paddr = paddr;
-
- r = dispc_ovl_setup(plane, &new_oi, c->ilace, c->channel,
- c->replication, c->fifo_low, c->fifo_high);
- if (r) {
- /* this shouldn't happen */
- DSSERR("dispc_ovl_setup failed for ovl %d\n", plane);
- dispc_ovl_enable(plane, 0);
- return r;
- }
-
- dispc_ovl_enable(plane, 1);
-
- return 0;
-}
-
-static void configure_manager(enum omap_channel channel)
-{
- struct omap_overlay_manager_info *mi;
-
- DSSDBGF("%d", channel);
-
- /* picking info from the cache */
- mi = &dss_cache.manager_cache[channel].info;
-
- dispc_mgr_set_default_color(channel, mi->default_color);
- dispc_mgr_set_trans_key(channel, mi->trans_key_type, mi->trans_key);
- dispc_mgr_enable_trans_key(channel, mi->trans_enabled);
- dispc_mgr_enable_alpha_fixed_zorder(channel, mi->partial_alpha_enabled);
- if (dss_has_feature(FEAT_CPR)) {
- dispc_mgr_enable_cpr(channel, mi->cpr_enable);
- dispc_mgr_set_cpr_coef(channel, &mi->cpr_coefs);
- }
-}
-
-/* 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 = dss_feat_get_num_ovls();
- const int num_mgrs = dss_feat_get_num_mgrs();
- int i;
- int r;
- bool mgr_busy[MAX_DSS_MANAGERS];
- bool mgr_go[MAX_DSS_MANAGERS];
- bool busy;
-
- r = 0;
- busy = false;
-
- for (i = 0; i < num_mgrs; i++) {
- mgr_busy[i] = dispc_mgr_go_busy(i);
- mgr_go[i] = false;
- }
-
- /* Commit overlay settings */
- for (i = 0; i < num_ovls; ++i) {
- oc = &dss_cache.overlay_cache[i];
- mc = &dss_cache.manager_cache[oc->channel];
+ mgr->set_device = &dss_mgr_set_device;
+ mgr->unset_device = &dss_mgr_unset_device;
+ 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;
- if (!oc->dirty)
- continue;
+ mgr->caps = 0;
+ mgr->supported_displays =
+ dss_feat_get_supported_displays(mgr->id);
- if (mc->manual_update && !mc->do_manual_update)
- continue;
+ INIT_LIST_HEAD(&mgr->overlays);
- if (mgr_busy[oc->channel]) {
- busy = true;
- continue;
- }
+ r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
+ &pdev->dev.kobj, "manager%d", i);
- 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_update)
- dispc_mgr_go(i);
- }
-
- if (busy)
- r = 1;
- else
- r = 0;
-
- return r;
-}
-
-/* Make the coordinates even. There are some strange problems with OMAP and
- * partial DSI update when the update widths are odd. */
-static void make_even(u16 *x, u16 *w)
-{
- u16 x1, x2;
-
- x1 = *x;
- x2 = *x + *w;
-
- x1 &= ~1;
- x2 = ALIGN(x2, 2);
-
- *x = x1;
- *w = x2 - x1;
-}
-
-/* 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, bool enlarge_update_area)
-{
- struct overlay_cache_data *oc;
- struct manager_cache_data *mc;
- struct omap_overlay_info *oi;
- const int num_ovls = dss_feat_get_num_ovls();
- struct omap_overlay_manager *mgr;
- int i;
- u16 x, y, w, h;
- unsigned long flags;
- bool area_changed;
-
- 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;
+ DSSERR("failed to create sysfs file\n");
}
- make_even(&x, &w);
-
- spin_lock_irqsave(&dss_cache.lock, flags);
-
- /*
- * Execute the outer loop until the inner loop has completed
- * once without increasing the update area. This will ensure that
- * all scaled overlays end up completely within the update area.
- */
- do {
- area_changed = false;
-
- /* 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];
- oi = &oc->info;
-
- if (oc->channel != mgr->id)
- continue;
-
- oc->dirty = true;
-
- if (!enlarge_update_area)
- continue;
-
- if (!oc->enabled)
- continue;
-
- if (!dispc_is_overlay_scaled(oc))
- continue;
-
- outw = oi->out_width == 0 ?
- oi->width : oi->out_width;
- outh = oi->out_height == 0 ?
- oi->height : oi->out_height;
-
- /* is the overlay outside the update region? */
- if (!rectangle_intersects(x, y, w, h,
- oi->pos_x, oi->pos_y,
- outw, outh))
- continue;
-
- /* if the overlay totally inside the update region? */
- if (rectangle_subset(oi->pos_x, oi->pos_y, outw, outh,
- x, y, w, h))
- continue;
-
- if (x > oi->pos_x)
- x1 = oi->pos_x;
- else
- x1 = x;
-
- if (y > oi->pos_y)
- y1 = oi->pos_y;
- else
- y1 = y;
-
- if ((x + w) < (oi->pos_x + outw))
- x2 = oi->pos_x + outw;
- else
- x2 = x + w;
-
- if ((y + h) < (oi->pos_y + outh))
- y2 = oi->pos_y + outh;
- else
- y2 = y + h;
-
- x = x1;
- y = y1;
- w = x2 - x1;
- h = y2 - y1;
-
- make_even(&x, &w);
-
- DSSDBG("changing upd area due to ovl(%d) "
- "scaling %d,%d %dx%d\n",
- i, x, y, w, h);
-
- area_changed = true;
- }
- } while (area_changed);
-
- mc = &dss_cache.manager_cache[mgr->id];
- mc->do_manual_update = true;
- mc->enlarge_update_area = enlarge_update_area;
- 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;
+ return 0;
}
-void dss_start_update(struct omap_dss_device *dssdev)
+void dss_uninit_overlay_managers(struct platform_device *pdev)
{
- struct manager_cache_data *mc;
- struct overlay_cache_data *oc;
- const int num_ovls = dss_feat_get_num_ovls();
- const int num_mgrs = dss_feat_get_num_mgrs();
- struct omap_overlay_manager *mgr;
int i;
- mgr = dssdev->manager;
+ for (i = 0; i < num_managers; ++i) {
+ struct omap_overlay_manager *mgr = &managers[i];
- 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;
+ kobject_del(&mgr->kobj);
+ kobject_put(&mgr->kobj);
}
- dssdev->manager->enable(dssdev->manager);
+ kfree(managers);
+ managers = NULL;
+ num_managers = 0;
}
-static void dss_apply_irq_handler(void *data, u32 mask)
+int omap_dss_get_num_overlay_managers(void)
{
- struct manager_cache_data *mc;
- struct overlay_cache_data *oc;
- const int num_ovls = dss_feat_get_num_ovls();
- const int num_mgrs = dss_feat_get_num_mgrs();
- int i, r;
- bool mgr_busy[MAX_DSS_MANAGERS];
- u32 irq_mask;
-
- for (i = 0; i < num_mgrs; i++)
- mgr_busy[i] = dispc_mgr_go_busy(i);
-
- 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 */
- for (i = 0; i < num_mgrs; i++)
- mgr_busy[i] = dispc_mgr_go_busy(i);
-
- /* 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;
- }
-
- irq_mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
- DISPC_IRQ_EVSYNC_EVEN;
- if (dss_has_feature(FEAT_MGR_LCD2))
- irq_mask |= DISPC_IRQ_VSYNC2;
-
- omap_dispc_unregister_isr(dss_apply_irq_handler, NULL, irq_mask);
- dss_cache.irq_enabled = false;
-
-end:
- spin_unlock(&dss_cache.lock);
+ return num_managers;
}
+EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
-static int omap_dss_mgr_apply(struct omap_overlay_manager *mgr)
+struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
{
- 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);
-
- r = dispc_runtime_get();
- if (r)
- return r;
-
- 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);
-
- oc = &dss_cache.overlay_cache[ovl->id];
-
- if (ovl->manager_changed) {
- ovl->manager_changed = false;
- ovl->info_dirty = true;
- }
-
- 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->info = ovl->info;
-
- 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;
-
- ++num_planes_enabled;
- }
-
- /* Configure managers */
- list_for_each_entry(mgr, &manager_list, list) {
- struct omap_dss_device *dssdev;
+ if (num >= num_managers)
+ return NULL;
- 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->info = mgr->info;
-
- mc->manual_update =
- dssdev->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE;
- }
-
- /* 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, burst_size;
-
- ovl = omap_dss_get_overlay(i);
-
- oc = &dss_cache.overlay_cache[ovl->id];
-
- if (!oc->enabled)
- continue;
-
- dssdev = ovl->manager->device;
-
- size = dispc_ovl_get_fifo_size(ovl->id);
- if (use_fifomerge)
- size *= 3;
-
- burst_size = dispc_ovl_get_burst_size(ovl->id);
-
- switch (dssdev->type) {
- case OMAP_DISPLAY_TYPE_DPI:
- case OMAP_DISPLAY_TYPE_DBI:
- case OMAP_DISPLAY_TYPE_SDI:
- case OMAP_DISPLAY_TYPE_VENC:
- case OMAP_DISPLAY_TYPE_HDMI:
- default_get_overlay_fifo_thresholds(ovl->id, size,
- 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,
- burst_size, &oc->fifo_low,
- &oc->fifo_high);
- break;
-#endif
- default:
- BUG();
- }
- }
-
- r = 0;
- if (!dss_cache.irq_enabled) {
- u32 mask;
-
- mask = DISPC_IRQ_VSYNC | DISPC_IRQ_EVSYNC_ODD |
- DISPC_IRQ_EVSYNC_EVEN;
- if (dss_has_feature(FEAT_MGR_LCD2))
- mask |= DISPC_IRQ_VSYNC2;
-
- r = omap_dispc_register_isr(dss_apply_irq_handler, NULL, mask);
- dss_cache.irq_enabled = true;
- }
- configure_dispc();
-
- spin_unlock_irqrestore(&dss_cache.lock, flags);
-
- dispc_runtime_put();
-
- return r;
+ return &managers[num];
}
+EXPORT_SYMBOL(omap_dss_get_overlay_manager);
-static int dss_check_manager(struct omap_overlay_manager *mgr)
+int dss_mgr_simple_check(struct omap_overlay_manager *mgr,
+ const struct omap_overlay_manager_info *info)
{
if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) {
/*
* OMAP3 supports only graphics source transparency color key
* and alpha blending simultaneously. See TRM 15.4.2.4.2.2
- * Alpha Mode
+ * Alpha Mode.
*/
- if (mgr->info.partial_alpha_enabled && mgr->info.trans_enabled
- && mgr->info.trans_key_type !=
- OMAP_DSS_COLOR_KEY_GFX_DST)
+ if (info->partial_alpha_enabled && info->trans_enabled
+ && info->trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) {
+ DSSERR("check_manager: illegal transparency key\n");
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)
+static int dss_mgr_check_zorder(struct omap_overlay_manager *mgr,
+ struct omap_overlay_info **overlay_infos)
{
- *info = mgr->info;
-}
+ struct omap_overlay *ovl1, *ovl2;
+ struct omap_overlay_info *info1, *info2;
-static int dss_mgr_enable(struct omap_overlay_manager *mgr)
-{
- dispc_mgr_enable(mgr->id, 1);
- return 0;
-}
+ list_for_each_entry(ovl1, &mgr->overlays, list) {
+ info1 = overlay_infos[ovl1->id];
-static int dss_mgr_disable(struct omap_overlay_manager *mgr)
-{
- dispc_mgr_enable(mgr->id, 0);
- return 0;
-}
-
-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 < dss_feat_get_num_mgrs(); ++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;
- break;
- case 1:
- mgr->name = "tv";
- mgr->id = OMAP_DSS_CHANNEL_DIGIT;
- break;
- case 2:
- mgr->name = "lcd2";
- mgr->id = OMAP_DSS_CHANNEL_LCD2;
- 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->wait_for_vsync = &dss_mgr_wait_for_vsync;
-
- mgr->enable = &dss_mgr_enable;
- mgr->disable = &dss_mgr_disable;
-
- mgr->caps = 0;
- mgr->supported_displays =
- dss_feat_get_supported_displays(mgr->id);
+ if (info1 == NULL)
+ continue;
- dss_overlay_setup_dispc_manager(mgr);
+ list_for_each_entry(ovl2, &mgr->overlays, list) {
+ if (ovl1 == ovl2)
+ continue;
- omap_dss_add_overlay_manager(mgr);
+ info2 = overlay_infos[ovl2->id];
- r = kobject_init_and_add(&mgr->kobj, &manager_ktype,
- &pdev->dev.kobj, "manager%d", i);
+ if (info2 == NULL)
+ continue;
- if (r) {
- DSSERR("failed to create sysfs file\n");
- continue;
+ if (info1->zorder == info2->zorder) {
+ DSSERR("overlays %d and %d have the same "
+ "zorder %d\n",
+ ovl1->id, ovl2->id, info1->zorder);
+ return -EINVAL;
+ }
}
}
return 0;
}
-void dss_uninit_overlay_managers(struct platform_device *pdev)
+int dss_mgr_check(struct omap_overlay_manager *mgr,
+ struct omap_dss_device *dssdev,
+ struct omap_overlay_manager_info *info,
+ struct omap_overlay_info **overlay_infos)
{
- struct omap_overlay_manager *mgr;
+ struct omap_overlay *ovl;
+ int r;
- 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);
+ if (dss_has_feature(FEAT_ALPHA_FREE_ZORDER)) {
+ r = dss_mgr_check_zorder(mgr, overlay_infos);
+ if (r)
+ return r;
}
- num_managers = 0;
-}
+ list_for_each_entry(ovl, &mgr->overlays, list) {
+ struct omap_overlay_info *oi;
+ int r;
-int omap_dss_get_num_overlay_managers(void)
-{
- return num_managers;
-}
-EXPORT_SYMBOL(omap_dss_get_num_overlay_managers);
+ oi = overlay_infos[ovl->id];
-struct omap_overlay_manager *omap_dss_get_overlay_manager(int num)
-{
- int i = 0;
- struct omap_overlay_manager *mgr;
+ if (oi == NULL)
+ continue;
- list_for_each_entry(mgr, &manager_list, list) {
- if (i++ == num)
- return mgr;
+ r = dss_ovl_check(ovl, oi, dssdev);
+ if (r)
+ return r;
}
- return NULL;
+ return 0;
}
-EXPORT_SYMBOL(omap_dss_get_overlay_manager);
-