diff options
| -rw-r--r-- | drivers/video/omap2/dss/Makefile | 2 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/dss.h | 10 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/venc.c | 208 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/venc_panel.c | 244 |
4 files changed, 308 insertions, 156 deletions
diff --git a/drivers/video/omap2/dss/Makefile b/drivers/video/omap2/dss/Makefile index 5c450b0f94d0..30a48fba75b0 100644 --- a/drivers/video/omap2/dss/Makefile +++ b/drivers/video/omap2/dss/Makefile @@ -3,7 +3,7 @@ omapdss-y := core.o dss.o dss_features.o dispc.o dispc_coefs.o display.o \ manager.o overlay.o apply.o omapdss-$(CONFIG_OMAP2_DSS_DPI) += dpi.o omapdss-$(CONFIG_OMAP2_DSS_RFBI) += rfbi.o -omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o +omapdss-$(CONFIG_OMAP2_DSS_VENC) += venc.o venc_panel.o omapdss-$(CONFIG_OMAP2_DSS_SDI) += sdi.o omapdss-$(CONFIG_OMAP2_DSS_DSI) += dsi.o omapdss-$(CONFIG_OMAP4_DSS_HDMI) += hdmi.o \ diff --git a/drivers/video/omap2/dss/dss.h b/drivers/video/omap2/dss/dss.h index ea39a994d1fd..78493dbd38eb 100644 --- a/drivers/video/omap2/dss/dss.h +++ b/drivers/video/omap2/dss/dss.h @@ -469,6 +469,16 @@ static inline unsigned long venc_get_pixel_clock(void) return 0; } #endif +int omapdss_venc_display_enable(struct omap_dss_device *dssdev); +void omapdss_venc_display_disable(struct omap_dss_device *dssdev); +void omapdss_venc_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); +int omapdss_venc_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings); +u32 omapdss_venc_get_wss(struct omap_dss_device *dssdev); +int omapdss_venc_set_wss(struct omap_dss_device *dssdev, u32 wss); +int venc_panel_init(void); +void venc_panel_exit(void); /* HDMI */ #ifdef CONFIG_OMAP4_DSS_HDMI diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 3a220877461a..ffca542a2242 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -427,6 +427,10 @@ static int venc_power_on(struct omap_dss_device *dssdev) u32 l; int r; + r = venc_runtime_get(); + if (r) + goto err0; + venc_reset(); venc_write_config(venc_timings_to_config(&dssdev->panel.timings)); @@ -449,26 +453,22 @@ static int venc_power_on(struct omap_dss_device *dssdev) r = regulator_enable(venc.vdda_dac_reg); if (r) - goto err; - - if (dssdev->platform_enable) - dssdev->platform_enable(dssdev); + goto err1; r = dss_mgr_enable(dssdev->manager); if (r) - goto err; + goto err2; return 0; -err: +err2: + regulator_disable(venc.vdda_dac_reg); +err1: venc_write_reg(VENC_OUTPUT_CONTROL, 0); dss_set_dac_pwrdn_bgz(0); - if (dssdev->platform_disable) - dssdev->platform_disable(dssdev); - - regulator_disable(venc.vdda_dac_reg); - + venc_runtime_put(); +err0: return r; } @@ -479,10 +479,9 @@ static void venc_power_off(struct omap_dss_device *dssdev) dss_mgr_disable(dssdev->manager); - if (dssdev->platform_disable) - dssdev->platform_disable(dssdev); - regulator_disable(venc.vdda_dac_reg); + + venc_runtime_put(); } unsigned long venc_get_pixel_clock(void) @@ -491,171 +490,95 @@ unsigned long venc_get_pixel_clock(void) return 13500000; } -static ssize_t display_output_type_show(struct device *dev, - struct device_attribute *attr, char *buf) +int omapdss_venc_display_enable(struct omap_dss_device *dssdev) { - struct omap_dss_device *dssdev = to_dss_device(dev); - const char *ret; - - switch (dssdev->phy.venc.type) { - case OMAP_DSS_VENC_TYPE_COMPOSITE: - ret = "composite"; - break; - case OMAP_DSS_VENC_TYPE_SVIDEO: - ret = "svideo"; - break; - default: - return -EINVAL; - } + int r; - return snprintf(buf, PAGE_SIZE, "%s\n", ret); -} - -static ssize_t display_output_type_store(struct device *dev, - struct device_attribute *attr, const char *buf, size_t size) -{ - struct omap_dss_device *dssdev = to_dss_device(dev); - enum omap_dss_venc_type new_type; - - if (sysfs_streq("composite", buf)) - new_type = OMAP_DSS_VENC_TYPE_COMPOSITE; - else if (sysfs_streq("svideo", buf)) - new_type = OMAP_DSS_VENC_TYPE_SVIDEO; - else - return -EINVAL; + DSSDBG("venc_display_enable\n"); mutex_lock(&venc.venc_lock); - if (dssdev->phy.venc.type != new_type) { - dssdev->phy.venc.type = new_type; - if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { - venc_power_off(dssdev); - venc_power_on(dssdev); - } + if (dssdev->manager == NULL) { + DSSERR("Failed to enable display: no manager\n"); + r = -ENODEV; + goto err0; } - mutex_unlock(&venc.venc_lock); - - return size; -} - -static DEVICE_ATTR(output_type, S_IRUGO | S_IWUSR, - display_output_type_show, display_output_type_store); - -/* driver */ -static int venc_panel_probe(struct omap_dss_device *dssdev) -{ - dssdev->panel.timings = omap_dss_pal_timings; - - return device_create_file(&dssdev->dev, &dev_attr_output_type); -} - -static void venc_panel_remove(struct omap_dss_device *dssdev) -{ - device_remove_file(&dssdev->dev, &dev_attr_output_type); -} - -static int venc_panel_enable(struct omap_dss_device *dssdev) -{ - int r = 0; - - DSSDBG("venc_enable_display\n"); - - mutex_lock(&venc.venc_lock); - r = omap_dss_start_device(dssdev); if (r) { DSSERR("failed to start device\n"); goto err0; } - if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { - r = -EINVAL; - goto err1; - } + if (dssdev->platform_enable) + dssdev->platform_enable(dssdev); - r = venc_runtime_get(); - if (r) - goto err1; r = venc_power_on(dssdev); if (r) - goto err2; + goto err1; venc.wss_data = 0; - dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; - mutex_unlock(&venc.venc_lock); + return 0; -err2: - venc_runtime_put(); err1: + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); omap_dss_stop_device(dssdev); err0: mutex_unlock(&venc.venc_lock); - return r; } -static void venc_panel_disable(struct omap_dss_device *dssdev) +void omapdss_venc_display_disable(struct omap_dss_device *dssdev) { - DSSDBG("venc_disable_display\n"); + DSSDBG("venc_display_disable\n"); mutex_lock(&venc.venc_lock); - if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) - goto end; - - if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) { - /* suspended is the same as disabled with venc */ - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; - goto end; - } - venc_power_off(dssdev); - venc_runtime_put(); - - dssdev->state = OMAP_DSS_DISPLAY_DISABLED; - omap_dss_stop_device(dssdev); -end: - mutex_unlock(&venc.venc_lock); -} -static int venc_panel_suspend(struct omap_dss_device *dssdev) -{ - venc_panel_disable(dssdev); - return 0; -} + if (dssdev->platform_disable) + dssdev->platform_disable(dssdev); -static int venc_panel_resume(struct omap_dss_device *dssdev) -{ - return venc_panel_enable(dssdev); + mutex_unlock(&venc.venc_lock); } -static void venc_set_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) +void omapdss_venc_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) { DSSDBG("venc_set_timings\n"); + mutex_lock(&venc.venc_lock); + /* Reset WSS data when the TV standard changes. */ if (memcmp(&dssdev->panel.timings, timings, sizeof(*timings))) venc.wss_data = 0; dssdev->panel.timings = *timings; + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { + int r; + /* turn the venc off and on to get new timings to use */ - venc_panel_disable(dssdev); - venc_panel_enable(dssdev); + venc_power_off(dssdev); + + r = venc_power_on(dssdev); + if (r) + DSSERR("failed to power on VENC\n"); } else { dss_mgr_set_timings(dssdev->manager, timings); } + + mutex_unlock(&venc.venc_lock); } -static int venc_check_timings(struct omap_dss_device *dssdev, - struct omap_video_timings *timings) +int omapdss_venc_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) { DSSDBG("venc_check_timings\n"); @@ -668,13 +591,13 @@ static int venc_check_timings(struct omap_dss_device *dssdev, return -EINVAL; } -static u32 venc_get_wss(struct omap_dss_device *dssdev) +u32 omapdss_venc_get_wss(struct omap_dss_device *dssdev) { /* Invert due to VENC_L21_WC_CTL:INV=1 */ return (venc.wss_data >> 8) ^ 0xfffff; } -static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss) +int omapdss_venc_set_wss(struct omap_dss_device *dssdev, u32 wss) { const struct venc_config *config; int r; @@ -703,31 +626,6 @@ err: return r; } -static struct omap_dss_driver venc_driver = { - .probe = venc_panel_probe, - .remove = venc_panel_remove, - - .enable = venc_panel_enable, - .disable = venc_panel_disable, - .suspend = venc_panel_suspend, - .resume = venc_panel_resume, - - .get_resolution = omapdss_default_get_resolution, - .get_recommended_bpp = omapdss_default_get_recommended_bpp, - - .set_timings = venc_set_timings, - .check_timings = venc_check_timings, - - .get_wss = venc_get_wss, - .set_wss = venc_set_wss, - - .driver = { - .name = "venc", - .owner = THIS_MODULE, - }, -}; -/* driver end */ - static int __init venc_init_display(struct omap_dss_device *dssdev) { DSSDBG("init_display\n"); @@ -897,9 +795,9 @@ static int __init omap_venchw_probe(struct platform_device *pdev) venc_runtime_put(); - r = omap_dss_register_driver(&venc_driver); + r = venc_panel_init(); if (r) - goto err_reg_panel_driver; + goto err_panel_init; dss_debugfs_create_file("venc", venc_dump_regs); @@ -907,7 +805,7 @@ static int __init omap_venchw_probe(struct platform_device *pdev) return 0; -err_reg_panel_driver: +err_panel_init: err_runtime_get: pm_runtime_disable(&pdev->dev); venc_put_clocks(); @@ -923,7 +821,7 @@ static int __exit omap_venchw_remove(struct platform_device *pdev) venc.vdda_dac_reg = NULL; } - omap_dss_unregister_driver(&venc_driver); + venc_panel_exit(); pm_runtime_disable(&pdev->dev); venc_put_clocks(); diff --git a/drivers/video/omap2/dss/venc_panel.c b/drivers/video/omap2/dss/venc_panel.c new file mode 100644 index 000000000000..cfed9077d2fb --- /dev/null +++ b/drivers/video/omap2/dss/venc_panel.c @@ -0,0 +1,244 @@ +/* + * Copyright (C) 2009 Nokia Corporation + * Author: Tomi Valkeinen <tomi.valkeinen@nokia.com> + * + * VENC panel driver + * + * 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/>. + */ + +#include <linux/kernel.h> +#include <linux/err.h> +#include <linux/io.h> +#include <linux/mutex.h> +#include <linux/module.h> + +#include <video/omapdss.h> + +#include "dss.h" + +static struct { + struct mutex lock; +} venc_panel; + +static ssize_t display_output_type_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + const char *ret; + + switch (dssdev->phy.venc.type) { + case OMAP_DSS_VENC_TYPE_COMPOSITE: + ret = "composite"; + break; + case OMAP_DSS_VENC_TYPE_SVIDEO: + ret = "svideo"; + break; + default: + return -EINVAL; + } + + return snprintf(buf, PAGE_SIZE, "%s\n", ret); +} + +static ssize_t display_output_type_store(struct device *dev, + struct device_attribute *attr, const char *buf, size_t size) +{ + struct omap_dss_device *dssdev = to_dss_device(dev); + enum omap_dss_venc_type new_type; + + if (sysfs_streq("composite", buf)) + new_type = OMAP_DSS_VENC_TYPE_COMPOSITE; + else if (sysfs_streq("svideo", buf)) + new_type = OMAP_DSS_VENC_TYPE_SVIDEO; + else + return -EINVAL; + + mutex_lock(&venc_panel.lock); + + if (dssdev->phy.venc.type != new_type) { + dssdev->phy.venc.type = new_type; + if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { + omapdss_venc_display_disable(dssdev); + omapdss_venc_display_enable(dssdev); + } + } + + mutex_unlock(&venc_panel.lock); + + return size; +} + +static DEVICE_ATTR(output_type, S_IRUGO | S_IWUSR, + display_output_type_show, display_output_type_store); + +static int venc_panel_probe(struct omap_dss_device *dssdev) +{ + /* set default timings to PAL */ + const struct omap_video_timings default_timings = { + .x_res = 720, + .y_res = 574, + .pixel_clock = 13500, + .hsw = 64, + .hfp = 12, + .hbp = 68, + .vsw = 5, + .vfp = 5, + .vbp = 41, + + .vsync_level = OMAPDSS_SIG_ACTIVE_HIGH, + .hsync_level = OMAPDSS_SIG_ACTIVE_HIGH, + + .interlace = true, + }; + + mutex_init(&venc_panel.lock); + + dssdev->panel.timings = default_timings; + + return device_create_file(&dssdev->dev, &dev_attr_output_type); +} + +static void venc_panel_remove(struct omap_dss_device *dssdev) +{ + device_remove_file(&dssdev->dev, &dev_attr_output_type); +} + +static int venc_panel_enable(struct omap_dss_device *dssdev) +{ + int r; + + dev_dbg(&dssdev->dev, "venc_panel_enable\n"); + + mutex_lock(&venc_panel.lock); + + if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) { + r = -EINVAL; + goto err; + } + + r = omapdss_venc_display_enable(dssdev); + if (r) + goto err; + + dssdev->state = OMAP_DSS_DISPLAY_ACTIVE; + + mutex_unlock(&venc_panel.lock); + + return 0; +err: + mutex_unlock(&venc_panel.lock); + + return r; +} + +static void venc_panel_disable(struct omap_dss_device *dssdev) +{ + dev_dbg(&dssdev->dev, "venc_panel_disable\n"); + + mutex_lock(&venc_panel.lock); + + if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED) + goto end; + + if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) { + /* suspended is the same as disabled with venc */ + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; + goto end; + } + + omapdss_venc_display_disable(dssdev); + + dssdev->state = OMAP_DSS_DISPLAY_DISABLED; +end: + mutex_unlock(&venc_panel.lock); +} + +static int venc_panel_suspend(struct omap_dss_device *dssdev) +{ + venc_panel_disable(dssdev); + return 0; +} + +static int venc_panel_resume(struct omap_dss_device *dssdev) +{ + return venc_panel_enable(dssdev); +} + +static void venc_panel_set_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + dev_dbg(&dssdev->dev, "venc_panel_set_timings\n"); + + mutex_lock(&venc_panel.lock); + + omapdss_venc_set_timings(dssdev, timings); + + mutex_unlock(&venc_panel.lock); +} + +static int venc_panel_check_timings(struct omap_dss_device *dssdev, + struct omap_video_timings *timings) +{ + dev_dbg(&dssdev->dev, "venc_panel_check_timings\n"); + + return omapdss_venc_check_timings(dssdev, timings); +} + +static u32 venc_panel_get_wss(struct omap_dss_device *dssdev) +{ + dev_dbg(&dssdev->dev, "venc_panel_get_wss\n"); + + return omapdss_venc_get_wss(dssdev); +} + +static int venc_panel_set_wss(struct omap_dss_device *dssdev, u32 wss) +{ + dev_dbg(&dssdev->dev, "venc_panel_set_wss\n"); + + return omapdss_venc_set_wss(dssdev, wss); +} + +static struct omap_dss_driver venc_driver = { + .probe = venc_panel_probe, + .remove = venc_panel_remove, + + .enable = venc_panel_enable, + .disable = venc_panel_disable, + .suspend = venc_panel_suspend, + .resume = venc_panel_resume, + + .get_resolution = omapdss_default_get_resolution, + .get_recommended_bpp = omapdss_default_get_recommended_bpp, + + .set_timings = venc_panel_set_timings, + .check_timings = venc_panel_check_timings, + + .get_wss = venc_panel_get_wss, + .set_wss = venc_panel_set_wss, + + .driver = { + .name = "venc", + .owner = THIS_MODULE, + }, +}; + +int venc_panel_init(void) +{ + return omap_dss_register_driver(&venc_driver); +} + +void venc_panel_exit(void) +{ + omap_dss_unregister_driver(&venc_driver); +} |