Add more core files to DSS2. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxx> --- drivers/video/omap2/dss/display.c | 658 ++++++++++++++++ drivers/video/omap2/dss/manager.c | 1487 +++++++++++++++++++++++++++++++++++++ drivers/video/omap2/dss/overlay.c | 673 +++++++++++++++++ 3 files changed, 2818 insertions(+), 0 deletions(-) create mode 100644 drivers/video/omap2/dss/display.c create mode 100644 drivers/video/omap2/dss/manager.c create mode 100644 drivers/video/omap2/dss/overlay.c diff --git a/drivers/video/omap2/dss/display.c b/drivers/video/omap2/dss/display.c new file mode 100644 index 0000000..6b5d0cf --- /dev/null +++ b/drivers/video/omap2/dss/display.c @@ -0,0 +1,658 @@ +/* + * linux/drivers/video/omap2/dss/display.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxx> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "DISPLAY" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/jiffies.h> +#include <linux/list.h> +#include <linux/platform_device.h> + +#include <mach/display.h> +#include "dss.h" + +static LIST_HEAD(display_list); + +static ssize_t display_enabled_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + bool enabled = dssdev->state != OMAP_DSS_DISPLAY_DISABLED; + + return snprintf(buf, PAGE_SIZE, "%d\n", enabled); +} + +static ssize_t display_enabled_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + bool enabled, r; + + enabled = simple_strtoul(buf, NULL, 10); + + if (enabled != (dssdev->state != OMAP_DSS_DISPLAY_DISABLED)) { + if (enabled) { + r = dssdev->enable(dssdev); + if (r) + return r; + } else { + dssdev->disable(dssdev); + } + } + + return size; +} + +static ssize_t display_upd_mode_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + enum omap_dss_update_mode mode = OMAP_DSS_UPDATE_AUTO; + if (dssdev->get_update_mode) + mode = dssdev->get_update_mode(dssdev); + return snprintf(buf, PAGE_SIZE, "%d\n", mode); +} + +static ssize_t display_upd_mode_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int val, r; + enum omap_dss_update_mode mode; + + val = simple_strtoul(buf, NULL, 10); + + switch (val) { + case OMAP_DSS_UPDATE_DISABLED: + case OMAP_DSS_UPDATE_AUTO: + case OMAP_DSS_UPDATE_MANUAL: + mode = (enum omap_dss_update_mode)val; + break; + default: + return -EINVAL; + } + + r = dssdev->set_update_mode(dssdev, mode); + if (r) + return r; + + return size; +} + +static ssize_t display_tear_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + return snprintf(buf, PAGE_SIZE, "%d\n", + dssdev->get_te ? dssdev->get_te(dssdev) : 0); +} + +static ssize_t display_tear_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long te; + int r; + + if (!dssdev->enable_te || !dssdev->get_te) + return -ENOENT; + + te = simple_strtoul(buf, NULL, 0); + + r = dssdev->enable_te(dssdev, te); + if (r) + return r; + + return size; +} + +static ssize_t display_timings_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct omap_video_timings t; + + if (!dssdev->get_timings) + return -ENOENT; + + dssdev->get_timings(dssdev, &t); + + return snprintf(buf, PAGE_SIZE, "%u,%u/%u/%u/%u,%u/%u/%u/%u\n", + t.pixel_clock, + t.x_res, t.hfp, t.hbp, t.hsw, + t.y_res, t.vfp, t.vbp, t.vsw); +} + +static ssize_t display_timings_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + struct omap_video_timings t; + int r, found; + + if (!dssdev->set_timings || !dssdev->check_timings) + return -ENOENT; + + found = 0; +#ifdef CONFIG_OMAP2_DSS_VENC + if (strncmp("pal", buf, 3) == 0) { + t = omap_dss_pal_timings; + found = 1; + } else if (strncmp("ntsc", buf, 4) == 0) { + t = omap_dss_ntsc_timings; + found = 1; + } +#endif + if (!found && sscanf(buf, "%u,%hu/%hu/%hu/%hu,%hu/%hu/%hu/%hu", + &t.pixel_clock, + &t.x_res, &t.hfp, &t.hbp, &t.hsw, + &t.y_res, &t.vfp, &t.vbp, &t.vsw) != 9) + return -EINVAL; + + r = dssdev->check_timings(dssdev, &t); + if (r) + return r; + + dssdev->set_timings(dssdev, &t); + + return size; +} + +static ssize_t display_rotate_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int rotate; + if (!dssdev->get_rotate) + return -ENOENT; + rotate = dssdev->get_rotate(dssdev); + return snprintf(buf, PAGE_SIZE, "%u\n", rotate); +} + +static ssize_t display_rotate_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long rot; + int r; + + if (!dssdev->set_rotate || !dssdev->get_rotate) + return -ENOENT; + + rot = simple_strtoul(buf, NULL, 0); + + r = dssdev->set_rotate(dssdev, rot); + if (r) + return r; + + return size; +} + +static ssize_t display_mirror_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + int mirror; + if (!dssdev->get_mirror) + return -ENOENT; + mirror = dssdev->get_mirror(dssdev); + return snprintf(buf, PAGE_SIZE, "%u\n", mirror); +} + +static ssize_t display_mirror_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long mirror; + int r; + + if (!dssdev->set_mirror || !dssdev->get_mirror) + return -ENOENT; + + mirror = simple_strtoul(buf, NULL, 0); + + r = dssdev->set_mirror(dssdev, mirror); + if (r) + return r; + + return size; +} + +static ssize_t display_wss_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned int wss; + + if (!dssdev->get_wss) + return -ENOENT; + + wss = dssdev->get_wss(dssdev); + + return snprintf(buf, PAGE_SIZE, "0x%05x\n", wss); +} + +static ssize_t display_wss_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + unsigned long wss; + int r; + + if (!dssdev->get_wss || !dssdev->set_wss) + return -ENOENT; + + if (strict_strtoul(buf, 0, &wss)) + return -EINVAL; + + if (wss > 0xfffff) + return -EINVAL; + + r = dssdev->set_wss(dssdev, wss); + if (r) + return r; + + return size; +} + +static DEVICE_ATTR(enabled, S_IRUGO|S_IWUSR, + display_enabled_show, display_enabled_store); +static DEVICE_ATTR(update_mode, S_IRUGO|S_IWUSR, + display_upd_mode_show, display_upd_mode_store); +static DEVICE_ATTR(tear_elim, S_IRUGO|S_IWUSR, + display_tear_show, display_tear_store); +static DEVICE_ATTR(timings, S_IRUGO|S_IWUSR, + display_timings_show, display_timings_store); +static DEVICE_ATTR(rotate, S_IRUGO|S_IWUSR, + display_rotate_show, display_rotate_store); +static DEVICE_ATTR(mirror, S_IRUGO|S_IWUSR, + display_mirror_show, display_mirror_store); +static DEVICE_ATTR(wss, S_IRUGO|S_IWUSR, + display_wss_show, display_wss_store); + +static struct device_attribute *display_sysfs_attrs[] = { + &dev_attr_enabled, + &dev_attr_update_mode, + &dev_attr_tear_elim, + &dev_attr_timings, + &dev_attr_rotate, + &dev_attr_mirror, + &dev_attr_wss, + NULL +}; + +static void default_get_resolution(struct omap_dss_device *dssdev, + u16 *xres, u16 *yres) +{ + *xres = dssdev->panel.timings.x_res; + *yres = dssdev->panel.timings.y_res; +} + +void default_get_overlay_fifo_thresholds(enum omap_plane plane, + u32 fifo_size, enum omap_burst_size *burst_size, + u32 *fifo_low, u32 *fifo_high) +{ + unsigned burst_size_bytes; + + *burst_size = OMAP_DSS_BURST_16x32; + burst_size_bytes = 16 * 32 / 8; + + *fifo_high = fifo_size - 1; + *fifo_low = fifo_size - burst_size_bytes; +} + +static int default_wait_vsync(struct omap_dss_device *dssdev) +{ + unsigned long timeout = msecs_to_jiffies(500); + u32 irq; + + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) + irq = DISPC_IRQ_EVSYNC_ODD; + else + irq = DISPC_IRQ_VSYNC; + + return omap_dispc_wait_for_irq_interruptible_timeout(irq, timeout); +} + +static int default_get_recommended_bpp(struct omap_dss_device *dssdev) +{ + if (dssdev->panel.recommended_bpp) + return dssdev->panel.recommended_bpp; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + if (dssdev->phy.dpi.data_lines == 24) + return 24; + else + return 16; + + case OMAP_DISPLAY_TYPE_DBI: + case OMAP_DISPLAY_TYPE_DSI: + if (dssdev->ctrl.pixel_size == 24) + return 24; + else + return 16; + case OMAP_DISPLAY_TYPE_VENC: + case OMAP_DISPLAY_TYPE_SDI: + return 24; + return 24; + default: + BUG(); + } +} + +/* Checks if replication logic should be used. Only use for active matrix, + * when overlay is in RGB12U or RGB16 mode, and LCD interface is + * 18bpp or 24bpp */ +bool dss_use_replication(struct omap_dss_device *dssdev, + enum omap_color_mode mode) +{ + int bpp; + + if (mode != OMAP_DSS_COLOR_RGB12U && mode != OMAP_DSS_COLOR_RGB16) + return false; + + if (dssdev->type == OMAP_DISPLAY_TYPE_DPI && + (dssdev->panel.config & OMAP_DSS_LCD_TFT) == 0) + return false; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + bpp = dssdev->phy.dpi.data_lines; + break; + case OMAP_DISPLAY_TYPE_VENC: + case OMAP_DISPLAY_TYPE_SDI: + bpp = 24; + break; + case OMAP_DISPLAY_TYPE_DBI: + case OMAP_DISPLAY_TYPE_DSI: + bpp = dssdev->ctrl.pixel_size; + break; + default: + BUG(); + } + + return bpp > 16; +} + +void dss_init_device(struct platform_device *pdev, + struct omap_dss_device *dssdev) +{ + struct device_attribute *attr; + int i; + int r; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: +#ifdef CONFIG_OMAP2_DSS_RFBI + case OMAP_DISPLAY_TYPE_DBI: +#endif +#ifdef CONFIG_OMAP2_DSS_SDI + case OMAP_DISPLAY_TYPE_SDI: +#endif +#ifdef CONFIG_OMAP2_DSS_DSI + case OMAP_DISPLAY_TYPE_DSI: +#endif +#ifdef CONFIG_OMAP2_DSS_VENC + case OMAP_DISPLAY_TYPE_VENC: +#endif + break; + default: + DSSERR("Support for display '%s' not compiled in.\n", + dssdev->name); + return; + } + + dssdev->get_resolution = default_get_resolution; + dssdev->get_recommended_bpp = default_get_recommended_bpp; + dssdev->wait_vsync = default_wait_vsync; + + switch (dssdev->type) { + case OMAP_DISPLAY_TYPE_DPI: + r = dpi_init_display(dssdev); + break; +#ifdef CONFIG_OMAP2_DSS_RFBI + case OMAP_DISPLAY_TYPE_DBI: + r = rfbi_init_display(dssdev); + break; +#endif +#ifdef CONFIG_OMAP2_DSS_VENC + case OMAP_DISPLAY_TYPE_VENC: + r = venc_init_display(dssdev); + break; +#endif +#ifdef CONFIG_OMAP2_DSS_SDI + case OMAP_DISPLAY_TYPE_SDI: + r = sdi_init_display(dssdev); + break; +#endif +#ifdef CONFIG_OMAP2_DSS_DSI + case OMAP_DISPLAY_TYPE_DSI: + r = dsi_init_display(dssdev); + break; +#endif + default: + BUG(); + } + + if (r) { + DSSERR("failed to init display %s\n", dssdev->name); + return; + } + + /* create device sysfs files */ + i = 0; + while ((attr = display_sysfs_attrs[i++]) != NULL) { + r = device_create_file(&dssdev->dev, attr); + if (r) + DSSERR("failed to create sysfs file\n"); + } + + /* create display? sysfs links */ + r = sysfs_create_link(&pdev->dev.kobj, &dssdev->dev.kobj, + dev_name(&dssdev->dev)); + if (r) + DSSERR("failed to create sysfs display link\n"); +} + +void dss_uninit_device(struct platform_device *pdev, + struct omap_dss_device *dssdev) +{ + struct device_attribute *attr; + int i = 0; + + sysfs_remove_link(&pdev->dev.kobj, dev_name(&dssdev->dev)); + + while ((attr = display_sysfs_attrs[i++]) != NULL) + device_remove_file(&dssdev->dev, attr); + + if (dssdev->manager) + dssdev->manager->unset_device(dssdev->manager); +} + +static int dss_suspend_device(struct device *dev, void *data) +{ + int r; + struct omap_dss_device *dssdev = to_dss_device(dev); + + if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) { + dssdev->activate_after_resume = false; + return 0; + } + + if (!dssdev->suspend) { + DSSERR("display '%s' doesn't implement suspend\n", + dssdev->name); + return -ENOSYS; + } + + r = dssdev->suspend(dssdev); + if (r) + return r; + + dssdev->activate_after_resume = true; + + return 0; +} + +int dss_suspend_all_devices(void) +{ + int r; + struct bus_type *bus = dss_get_bus(); + + r = bus_for_each_dev(bus, NULL, NULL, dss_suspend_device); + if (r) { + /* resume all displays that were suspended */ + dss_resume_all_devices(); + return r; + } + + return 0; +} + +static int dss_resume_device(struct device *dev, void *data) +{ + int r; + struct omap_dss_device *dssdev = to_dss_device(dev); + + if (dssdev->activate_after_resume && dssdev->resume) { + r = dssdev->resume(dssdev); + if (r) + return r; + } + + dssdev->activate_after_resume = false; + + return 0; +} + +int dss_resume_all_devices(void) +{ + struct bus_type *bus = dss_get_bus(); + + return bus_for_each_dev(bus, NULL, NULL, dss_resume_device); +} + + +void omap_dss_get_device(struct omap_dss_device *dssdev) +{ + get_device(&dssdev->dev); +} +EXPORT_SYMBOL(omap_dss_get_device); + +void omap_dss_put_device(struct omap_dss_device *dssdev) +{ + put_device(&dssdev->dev); +} +EXPORT_SYMBOL(omap_dss_put_device); + +/* ref count of the found device is incremented. ref count + * of from-device is decremented. */ +struct omap_dss_device *omap_dss_get_next_device(struct omap_dss_device *from) +{ + struct device *dev; + struct device *dev_start = NULL; + struct omap_dss_device *dssdev = NULL; + + int match(struct device *dev, void *data) + { + /* skip panels connected to controllers */ + if (to_dss_device(dev)->panel.ctrl) + return 0; + + return 1; + } + + if (from) + dev_start = &from->dev; + dev = bus_find_device(dss_get_bus(), dev_start, NULL, match); + if (dev) + dssdev = to_dss_device(dev); + if (from) + put_device(&from->dev); + + return dssdev; +} +EXPORT_SYMBOL(omap_dss_get_next_device); + +struct omap_dss_device *omap_dss_find_device(void *data, + int (*match)(struct omap_dss_device *dssdev, void *data)) +{ + struct omap_dss_device *dssdev = NULL; + + while ((dssdev = omap_dss_get_next_device(dssdev)) != NULL) { + if (match(dssdev, data)) + return dssdev; + } + + return NULL; +} +EXPORT_SYMBOL(omap_dss_find_device); + +int omap_dss_start_device(struct omap_dss_device *dssdev) +{ + int r; + + if (!dssdev->driver) { + DSSDBG("no driver\n"); + r = -ENODEV; + goto err0; + } + + if (dssdev->ctrl.panel && !dssdev->ctrl.panel->driver) { + DSSDBG("no panel driver\n"); + r = -ENODEV; + goto err0; + } + + if (!try_module_get(dssdev->dev.driver->owner)) { + r = -ENODEV; + goto err0; + } + + if (dssdev->ctrl.panel) { + if (!try_module_get(dssdev->ctrl.panel->dev.driver->owner)) { + r = -ENODEV; + goto err1; + } + } + + return 0; +err1: + module_put(dssdev->dev.driver->owner); +err0: + return r; +} +EXPORT_SYMBOL(omap_dss_start_device); + +void omap_dss_stop_device(struct omap_dss_device *dssdev) +{ + if (dssdev->ctrl.panel) + module_put(dssdev->ctrl.panel->dev.driver->owner); + + module_put(dssdev->dev.driver->owner); +} +EXPORT_SYMBOL(omap_dss_stop_device); + diff --git a/drivers/video/omap2/dss/manager.c b/drivers/video/omap2/dss/manager.c new file mode 100644 index 0000000..7ee0b2b --- /dev/null +++ b/drivers/video/omap2/dss/manager.c @@ -0,0 +1,1487 @@ +/* + * linux/drivers/video/omap2/dss/manager.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxx> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "MANAGER" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/spinlock.h> +#include <linux/jiffies.h> + +#include <mach/display.h> +#include <mach/cpu.h> + +#include "dss.h" + +static int num_managers; +static struct list_head manager_list; + +static ssize_t manager_name_show(struct omap_overlay_manager *mgr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", mgr->name); +} + +static ssize_t manager_display_show(struct omap_overlay_manager *mgr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", + mgr->device ? mgr->device->name : "<none>"); +} + +static ssize_t manager_display_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + int r = 0; + size_t len = size; + struct omap_dss_device *dssdev = NULL; + + int match(struct omap_dss_device *dssdev, void *data) + { + const char *str = data; + return sysfs_streq(dssdev->name, str); + } + + if (buf[size-1] == '\n') + --len; + + if (len > 0) + dssdev = omap_dss_find_device((void *)buf, match); + + if (len > 0 && dssdev == NULL) + return -EINVAL; + + if (dssdev) + DSSDBG("display %s found\n", dssdev->name); + + if (mgr->device) { + r = mgr->unset_device(mgr); + if (r) { + DSSERR("failed to unset display\n"); + goto put_device; + } + } + + if (dssdev) { + r = mgr->set_device(mgr, dssdev); + if (r) { + DSSERR("failed to set manager\n"); + goto put_device; + } + + r = mgr->apply(mgr); + if (r) { + DSSERR("failed to apply dispc config\n"); + goto put_device; + } + } + +put_device: + if (dssdev) + omap_dss_put_device(dssdev); + + return r ? r : size; +} + +static ssize_t manager_default_color_show(struct omap_overlay_manager *mgr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.default_color); +} + +static ssize_t manager_default_color_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + u32 color; + int r; + + if (sscanf(buf, "%d", &color) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.default_color = color; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static const char *trans_key_type_str[] = { + "gfx-destination", + "video-source", +}; + +static ssize_t manager_trans_key_type_show(struct omap_overlay_manager *mgr, + char *buf) +{ + enum omap_dss_trans_key_type key_type; + + key_type = mgr->info.trans_key_type; + BUG_ON(key_type >= ARRAY_SIZE(trans_key_type_str)); + + return snprintf(buf, PAGE_SIZE, "%s\n", trans_key_type_str[key_type]); +} + +static ssize_t manager_trans_key_type_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + enum omap_dss_trans_key_type key_type; + struct omap_overlay_manager_info info; + int r; + + for (key_type = OMAP_DSS_COLOR_KEY_GFX_DST; + key_type < ARRAY_SIZE(trans_key_type_str); key_type++) { + if (sysfs_streq(buf, trans_key_type_str[key_type])) + break; + } + + if (key_type == ARRAY_SIZE(trans_key_type_str)) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.trans_key_type = key_type; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static ssize_t manager_trans_key_value_show(struct omap_overlay_manager *mgr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_key); +} + +static ssize_t manager_trans_key_value_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + u32 key_value; + int r; + + if (sscanf(buf, "%d", &key_value) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.trans_key = key_value; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static ssize_t manager_trans_key_enabled_show(struct omap_overlay_manager *mgr, + char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.trans_enabled); +} + +static ssize_t manager_trans_key_enabled_store(struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + int enable; + int r; + + if (sscanf(buf, "%d", &enable) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.trans_enabled = enable ? true : false; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +static ssize_t manager_alpha_blending_enabled_show( + struct omap_overlay_manager *mgr, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", mgr->info.alpha_enabled); +} + +static ssize_t manager_alpha_blending_enabled_store( + struct omap_overlay_manager *mgr, + const char *buf, size_t size) +{ + struct omap_overlay_manager_info info; + int enable; + int r; + + if (sscanf(buf, "%d", &enable) != 1) + return -EINVAL; + + mgr->get_manager_info(mgr, &info); + + info.alpha_enabled = enable ? true : false; + + r = mgr->set_manager_info(mgr, &info); + if (r) + return r; + + r = mgr->apply(mgr); + if (r) + return r; + + return size; +} + +struct manager_attribute { + struct attribute attr; + ssize_t (*show)(struct omap_overlay_manager *, char *); + ssize_t (*store)(struct omap_overlay_manager *, const char *, size_t); +}; + +#define MANAGER_ATTR(_name, _mode, _show, _store) \ + struct manager_attribute manager_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) + +static MANAGER_ATTR(name, S_IRUGO, manager_name_show, NULL); +static MANAGER_ATTR(display, S_IRUGO|S_IWUSR, + manager_display_show, manager_display_store); +static MANAGER_ATTR(default_color, S_IRUGO|S_IWUSR, + manager_default_color_show, manager_default_color_store); +static MANAGER_ATTR(trans_key_type, S_IRUGO|S_IWUSR, + manager_trans_key_type_show, manager_trans_key_type_store); +static MANAGER_ATTR(trans_key_value, S_IRUGO|S_IWUSR, + manager_trans_key_value_show, manager_trans_key_value_store); +static MANAGER_ATTR(trans_key_enabled, S_IRUGO|S_IWUSR, + manager_trans_key_enabled_show, + manager_trans_key_enabled_store); +static MANAGER_ATTR(alpha_blending_enabled, S_IRUGO|S_IWUSR, + manager_alpha_blending_enabled_show, + manager_alpha_blending_enabled_store); + + +static struct attribute *manager_sysfs_attrs[] = { + &manager_attr_name.attr, + &manager_attr_display.attr, + &manager_attr_default_color.attr, + &manager_attr_trans_key_type.attr, + &manager_attr_trans_key_value.attr, + &manager_attr_trans_key_enabled.attr, + &manager_attr_alpha_blending_enabled.attr, + NULL +}; + +static ssize_t manager_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct omap_overlay_manager *manager; + struct manager_attribute *manager_attr; + + manager = container_of(kobj, struct omap_overlay_manager, kobj); + manager_attr = container_of(attr, struct manager_attribute, attr); + + if (!manager_attr->show) + return -ENOENT; + + return manager_attr->show(manager, buf); +} + +static ssize_t manager_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t size) +{ + struct omap_overlay_manager *manager; + struct manager_attribute *manager_attr; + + manager = container_of(kobj, struct omap_overlay_manager, kobj); + manager_attr = container_of(attr, struct manager_attribute, attr); + + if (!manager_attr->store) + return -ENOENT; + + return manager_attr->store(manager, buf, size); +} + +static struct sysfs_ops manager_sysfs_ops = { + .show = manager_attr_show, + .store = manager_attr_store, +}; + +static struct kobj_type manager_ktype = { + .sysfs_ops = &manager_sysfs_ops, + .default_attrs = manager_sysfs_attrs, +}; + +/* + * 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; + + u32 paddr; + void __iomem *vaddr; + u16 screen_width; + u16 width; + u16 height; + enum omap_color_mode color_mode; + u8 rotation; + enum omap_dss_rotation_type rotation_type; + bool mirror; + + u16 pos_x; + u16 pos_y; + u16 out_width; /* if 0, out_width == width */ + u16 out_height; /* if 0, out_height == height */ + u8 global_alpha; + + enum omap_channel channel; + bool replication; + bool ilace; + + enum omap_burst_size burst_size; + u32 fifo_low; + u32 fifo_high; + + bool manual_update; +}; + +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; + + u32 default_color; + + enum omap_dss_trans_key_type trans_key_type; + u32 trans_key; + bool trans_enabled; + + bool alpha_enabled; + + bool manual_upd_display; + bool manual_update; + bool do_manual_update; + + /* manual update region */ + u16 x, y, w, h; +}; + +static struct { + spinlock_t lock; + struct overlay_cache_data overlay_cache[3]; + struct manager_cache_data manager_cache[2]; + + 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; + } + + mgr->device->manager = NULL; + mgr->device = NULL; + mgr->device_changed = true; + + return 0; +} + +static int dss_mgr_wait_for_go(struct omap_overlay_manager *mgr) +{ + unsigned long timeout = msecs_to_jiffies(500); + struct manager_cache_data *mc; + enum omap_channel channel; + u32 irq; + int r; + int i; + + if (!mgr->device) + return 0; + + if (mgr->device->type == OMAP_DISPLAY_TYPE_VENC) { + irq = DISPC_IRQ_EVSYNC_ODD | DISPC_IRQ_EVSYNC_EVEN; + channel = OMAP_DSS_CHANNEL_DIGIT; + } else { + if (mgr->device->caps & OMAP_DSS_DISPLAY_CAP_MANUAL_UPDATE) { + enum omap_dss_update_mode mode; + mode = mgr->device->get_update_mode(mgr->device); + if (mode != OMAP_DSS_UPDATE_AUTO) + return 0; + + irq = DISPC_IRQ_FRAMEDONE; + } else { + irq = DISPC_IRQ_VSYNC; + } + channel = OMAP_DSS_CHANNEL_LCD; + } + + 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); + 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); + diff --git a/drivers/video/omap2/dss/overlay.c b/drivers/video/omap2/dss/overlay.c new file mode 100644 index 0000000..c7cb81b --- /dev/null +++ b/drivers/video/omap2/dss/overlay.c @@ -0,0 +1,673 @@ +/* + * linux/drivers/video/omap2/dss/overlay.c + * + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@xxxxxxxxx> + * + * Some code and ideas taken from drivers/video/omap/ driver + * by Imre Deak. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 as published by + * the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ + +#define DSS_SUBSYS_NAME "OVERLAY" + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/err.h> +#include <linux/sysfs.h> +#include <linux/kobject.h> +#include <linux/platform_device.h> +#include <linux/delay.h> + +#include <mach/display.h> + +#include "dss.h" + +static int num_overlays; +static struct list_head overlay_list; + +static ssize_t overlay_name_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", ovl->name); +} + +static ssize_t overlay_manager_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%s\n", + ovl->manager ? ovl->manager->name : "<none>"); +} + +static ssize_t overlay_manager_store(struct omap_overlay *ovl, const char *buf, + size_t size) +{ + int i, r; + struct omap_overlay_manager *mgr = NULL; + struct omap_overlay_manager *old_mgr; + int len = size; + + if (buf[size-1] == '\n') + --len; + + if (len > 0) { + for (i = 0; i < omap_dss_get_num_overlay_managers(); ++i) { + mgr = omap_dss_get_overlay_manager(i); + + if (strncmp(buf, mgr->name, len) == 0) + break; + + mgr = NULL; + } + } + + if (len > 0 && mgr == NULL) + return -EINVAL; + + if (mgr) + DSSDBG("manager %s found\n", mgr->name); + + if (mgr == ovl->manager) + return size; + + old_mgr = ovl->manager; + + /* detach old manager */ + if (old_mgr) { + r = ovl->unset_manager(ovl); + if (r) { + DSSERR("detach failed\n"); + return r; + } + + r = old_mgr->apply(old_mgr); + if (r) + return r; + } + + if (mgr) { + r = ovl->set_manager(ovl, mgr); + if (r) { + DSSERR("Failed to attach overlay\n"); + return r; + } + + r = mgr->apply(mgr); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_input_size_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d,%d\n", + ovl->info.width, ovl->info.height); +} + +static ssize_t overlay_screen_width_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.screen_width); +} + +static ssize_t overlay_position_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d,%d\n", + ovl->info.pos_x, ovl->info.pos_y); +} + +static ssize_t overlay_position_store(struct omap_overlay *ovl, + const char *buf, size_t size) +{ + int r; + char *last; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + info.pos_x = simple_strtoul(buf, &last, 10); + ++last; + if (last - buf >= size) + return -EINVAL; + + info.pos_y = simple_strtoul(last, &last, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_output_size_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d,%d\n", + ovl->info.out_width, ovl->info.out_height); +} + +static ssize_t overlay_output_size_store(struct omap_overlay *ovl, + const char *buf, size_t size) +{ + int r; + char *last; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + info.out_width = simple_strtoul(buf, &last, 10); + ++last; + if (last - buf >= size) + return -EINVAL; + + info.out_height = simple_strtoul(last, &last, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_enabled_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", ovl->info.enabled); +} + +static ssize_t overlay_enabled_store(struct omap_overlay *ovl, const char *buf, + size_t size) +{ + int r; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + info.enabled = simple_strtoul(buf, NULL, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +static ssize_t overlay_global_alpha_show(struct omap_overlay *ovl, char *buf) +{ + return snprintf(buf, PAGE_SIZE, "%d\n", + ovl->info.global_alpha); +} + +static ssize_t overlay_global_alpha_store(struct omap_overlay *ovl, + const char *buf, size_t size) +{ + int r; + struct omap_overlay_info info; + + ovl->get_overlay_info(ovl, &info); + + /* Video1 plane does not support global alpha + * to always make it 255 completely opaque + */ + if (ovl->id == OMAP_DSS_VIDEO1) + info.global_alpha = 255; + else + info.global_alpha = simple_strtoul(buf, NULL, 10); + + r = ovl->set_overlay_info(ovl, &info); + if (r) + return r; + + if (ovl->manager) { + r = ovl->manager->apply(ovl->manager); + if (r) + return r; + } + + return size; +} + +struct overlay_attribute { + struct attribute attr; + ssize_t (*show)(struct omap_overlay *, char *); + ssize_t (*store)(struct omap_overlay *, const char *, size_t); +}; + +#define OVERLAY_ATTR(_name, _mode, _show, _store) \ + struct overlay_attribute overlay_attr_##_name = \ + __ATTR(_name, _mode, _show, _store) + +static OVERLAY_ATTR(name, S_IRUGO, overlay_name_show, NULL); +static OVERLAY_ATTR(manager, S_IRUGO|S_IWUSR, + overlay_manager_show, overlay_manager_store); +static OVERLAY_ATTR(input_size, S_IRUGO, overlay_input_size_show, NULL); +static OVERLAY_ATTR(screen_width, S_IRUGO, overlay_screen_width_show, NULL); +static OVERLAY_ATTR(position, S_IRUGO|S_IWUSR, + overlay_position_show, overlay_position_store); +static OVERLAY_ATTR(output_size, S_IRUGO|S_IWUSR, + overlay_output_size_show, overlay_output_size_store); +static OVERLAY_ATTR(enabled, S_IRUGO|S_IWUSR, + overlay_enabled_show, overlay_enabled_store); +static OVERLAY_ATTR(global_alpha, S_IRUGO|S_IWUSR, + overlay_global_alpha_show, overlay_global_alpha_store); + +static struct attribute *overlay_sysfs_attrs[] = { + &overlay_attr_name.attr, + &overlay_attr_manager.attr, + &overlay_attr_input_size.attr, + &overlay_attr_screen_width.attr, + &overlay_attr_position.attr, + &overlay_attr_output_size.attr, + &overlay_attr_enabled.attr, + &overlay_attr_global_alpha.attr, + NULL +}; + +static ssize_t overlay_attr_show(struct kobject *kobj, struct attribute *attr, + char *buf) +{ + struct omap_overlay *overlay; + struct overlay_attribute *overlay_attr; + + overlay = container_of(kobj, struct omap_overlay, kobj); + overlay_attr = container_of(attr, struct overlay_attribute, attr); + + if (!overlay_attr->show) + return -ENOENT; + + return overlay_attr->show(overlay, buf); +} + +static ssize_t overlay_attr_store(struct kobject *kobj, struct attribute *attr, + const char *buf, size_t size) +{ + struct omap_overlay *overlay; + struct overlay_attribute *overlay_attr; + + overlay = container_of(kobj, struct omap_overlay, kobj); + overlay_attr = container_of(attr, struct overlay_attribute, attr); + + if (!overlay_attr->store) + return -ENOENT; + + return overlay_attr->store(overlay, buf, size); +} + +static struct sysfs_ops overlay_sysfs_ops = { + .show = overlay_attr_show, + .store = overlay_attr_store, +}; + +static struct kobj_type overlay_ktype = { + .sysfs_ops = &overlay_sysfs_ops, + .default_attrs = overlay_sysfs_attrs, +}; + +/* Check if overlay parameters are compatible with display */ +int dss_check_overlay(struct omap_overlay *ovl, struct omap_dss_device *dssdev) +{ + struct omap_overlay_info *info; + u16 outw, outh; + u16 dw, dh; + + if (!dssdev) + return 0; + + if (!ovl->info.enabled) + return 0; + + info = &ovl->info; + + if (info->paddr == 0) { + DSSDBG("check_overlay failed: paddr 0\n"); + return -EINVAL; + } + + dssdev->get_resolution(dssdev, &dw, &dh); + + DSSDBG("check_overlay %d: (%d,%d %dx%d -> %dx%d) disp (%dx%d)\n", + ovl->id, + info->pos_x, info->pos_y, + info->width, info->height, + info->out_width, info->out_height, + dw, dh); + + if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { + outw = info->width; + outh = info->height; + } else { + if (info->out_width == 0) + outw = info->width; + else + outw = info->out_width; + + if (info->out_height == 0) + outh = info->height; + else + outh = info->out_height; + } + + if (dw < info->pos_x + outw) { + DSSDBG("check_overlay failed 1: %d < %d + %d\n", + dw, info->pos_x, outw); + return -EINVAL; + } + + if (dh < info->pos_y + outh) { + DSSDBG("check_overlay failed 2: %d < %d + %d\n", + dh, info->pos_y, outh); + return -EINVAL; + } + + if ((ovl->supported_modes & info->color_mode) == 0) { + DSSERR("overlay doesn't support mode %d\n", info->color_mode); + return -EINVAL; + } + + return 0; +} + +static int dss_ovl_set_overlay_info(struct omap_overlay *ovl, + struct omap_overlay_info *info) +{ + int r; + struct omap_overlay_info old_info; + + old_info = ovl->info; + ovl->info = *info; + + if (ovl->manager) { + r = dss_check_overlay(ovl, ovl->manager->device); + if (r) { + ovl->info = old_info; + return r; + } + } + + ovl->info_dirty = true; + + return 0; +} + +static void dss_ovl_get_overlay_info(struct omap_overlay *ovl, + struct omap_overlay_info *info) +{ + *info = ovl->info; +} + +static int dss_ovl_wait_for_go(struct omap_overlay *ovl) +{ + return dss_mgr_wait_for_go_ovl(ovl); +} + +static int omap_dss_set_manager(struct omap_overlay *ovl, + struct omap_overlay_manager *mgr) +{ + if (!mgr) + return -EINVAL; + + if (ovl->manager) { + DSSERR("overlay '%s' already has a manager '%s'\n", + ovl->name, ovl->manager->name); + return -EINVAL; + } + + if (ovl->info.enabled) { + DSSERR("overlay has to be disabled to change the manager\n"); + return -EINVAL; + } + + ovl->manager = mgr; + + dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1); + /* XXX: on manual update display, in auto update mode, a bug happens + * here. When an overlay is first enabled on LCD, then it's disabled, + * and the manager is changed to TV, we sometimes get SYNC_LOST_DIGIT + * errors. Waiting before changing the channel_out fixes it. I'm + * guessing that the overlay is still somehow being used for the LCD, + * but I don't understand how or why. */ + msleep(40); + dispc_set_channel_out(ovl->id, mgr->id); + dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1); + + return 0; +} + +static int omap_dss_unset_manager(struct omap_overlay *ovl) +{ + int r; + + if (!ovl->manager) { + DSSERR("failed to detach overlay: manager not set\n"); + return -EINVAL; + } + + if (ovl->info.enabled) { + DSSERR("overlay has to be disabled to unset the manager\n"); + return -EINVAL; + } + + r = ovl->wait_for_go(ovl); + if (r) + return r; + + ovl->manager = NULL; + + return 0; +} + +int omap_dss_get_num_overlays(void) +{ + return num_overlays; +} +EXPORT_SYMBOL(omap_dss_get_num_overlays); + +struct omap_overlay *omap_dss_get_overlay(int num) +{ + int i = 0; + struct omap_overlay *ovl; + + list_for_each_entry(ovl, &overlay_list, list) { + if (i++ == num) + return ovl; + } + + return NULL; +} +EXPORT_SYMBOL(omap_dss_get_overlay); + +static void omap_dss_add_overlay(struct omap_overlay *overlay) +{ + ++num_overlays; + list_add_tail(&overlay->list, &overlay_list); +} + +static struct omap_overlay *dispc_overlays[3]; + +void dss_overlay_setup_dispc_manager(struct omap_overlay_manager *mgr) +{ + mgr->num_overlays = 3; + mgr->overlays = dispc_overlays; +} + +#ifdef L4_EXAMPLE +static struct omap_overlay *l4_overlays[1]; +void dss_overlay_setup_l4_manager(struct omap_overlay_manager *mgr) +{ + mgr->num_overlays = 1; + mgr->overlays = l4_overlays; +} +#endif + +void dss_init_overlays(struct platform_device *pdev) +{ + int i, r; + + INIT_LIST_HEAD(&overlay_list); + + num_overlays = 0; + + for (i = 0; i < 3; ++i) { + struct omap_overlay *ovl; + ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); + + BUG_ON(ovl == NULL); + + switch (i) { + case 0: + ovl->name = "gfx"; + ovl->id = OMAP_DSS_GFX; + ovl->supported_modes = OMAP_DSS_COLOR_GFX_OMAP3; + ovl->caps = OMAP_DSS_OVL_CAP_DISPC; + ovl->info.global_alpha = 255; + break; + case 1: + ovl->name = "vid1"; + ovl->id = OMAP_DSS_VIDEO1; + ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3; + ovl->caps = OMAP_DSS_OVL_CAP_SCALE | + OMAP_DSS_OVL_CAP_DISPC; + ovl->info.global_alpha = 255; + break; + case 2: + ovl->name = "vid2"; + ovl->id = OMAP_DSS_VIDEO2; + ovl->supported_modes = OMAP_DSS_COLOR_VID_OMAP3; + ovl->caps = OMAP_DSS_OVL_CAP_SCALE | + OMAP_DSS_OVL_CAP_DISPC; + ovl->info.global_alpha = 255; + break; + } + + ovl->set_manager = &omap_dss_set_manager; + ovl->unset_manager = &omap_dss_unset_manager; + ovl->set_overlay_info = &dss_ovl_set_overlay_info; + ovl->get_overlay_info = &dss_ovl_get_overlay_info; + ovl->wait_for_go = &dss_ovl_wait_for_go; + + omap_dss_add_overlay(ovl); + + r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, + &pdev->dev.kobj, "overlay%d", i); + + if (r) { + DSSERR("failed to create sysfs file\n"); + continue; + } + + dispc_overlays[i] = ovl; + } + +#ifdef L4_EXAMPLE + { + struct omap_overlay *ovl; + ovl = kzalloc(sizeof(*ovl), GFP_KERNEL); + + BUG_ON(ovl == NULL); + + ovl->name = "l4"; + ovl->supported_modes = OMAP_DSS_COLOR_RGB24U; + + ovl->set_manager = &omap_dss_set_manager; + ovl->unset_manager = &omap_dss_unset_manager; + ovl->set_overlay_info = &dss_ovl_set_overlay_info; + ovl->get_overlay_info = &dss_ovl_get_overlay_info; + + omap_dss_add_overlay(ovl); + + r = kobject_init_and_add(&ovl->kobj, &overlay_ktype, + &pdev->dev.kobj, "overlayl4"); + + if (r) + DSSERR("failed to create sysfs file\n"); + + l4_overlays[0] = ovl; + } +#endif +} + +/* connect overlays to the new device, if not already connected. if force + * selected, connect always. */ +void dss_recheck_connections(struct omap_dss_device *dssdev, bool force) +{ + int i; + struct omap_overlay_manager *lcd_mgr; + struct omap_overlay_manager *tv_mgr; + struct omap_overlay_manager *mgr = NULL; + + lcd_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_LCD); + tv_mgr = omap_dss_get_overlay_manager(OMAP_DSS_OVL_MGR_TV); + + if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) { + if (!lcd_mgr->device || force) { + if (lcd_mgr->device) + lcd_mgr->unset_device(lcd_mgr); + lcd_mgr->set_device(lcd_mgr, dssdev); + mgr = lcd_mgr; + } + } + + if (dssdev->type == OMAP_DISPLAY_TYPE_VENC) { + if (!tv_mgr->device || force) { + if (tv_mgr->device) + tv_mgr->unset_device(tv_mgr); + tv_mgr->set_device(tv_mgr, dssdev); + mgr = tv_mgr; + } + } + + if (mgr) { + for (i = 0; i < 3; i++) { + struct omap_overlay *ovl; + ovl = omap_dss_get_overlay(i); + if (!ovl->manager || force) { + if (ovl->manager) + omap_dss_unset_manager(ovl); + omap_dss_set_manager(ovl, mgr); + } + } + } +} + +void dss_uninit_overlays(struct platform_device *pdev) +{ + struct omap_overlay *ovl; + + while (!list_empty(&overlay_list)) { + ovl = list_first_entry(&overlay_list, + struct omap_overlay, list); + list_del(&ovl->list); + kobject_del(&ovl->kobj); + kobject_put(&ovl->kobj); + kfree(ovl); + } + + num_overlays = 0; +} + -- 1.6.4 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
