diff options
Diffstat (limited to 'drivers/video/omap2/dss/venc.c')
-rw-r--r-- | drivers/video/omap2/dss/venc.c | 337 |
1 files changed, 150 insertions, 187 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index 3a220877461..56efa3bb465 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -36,7 +36,6 @@ #include <linux/pm_runtime.h> #include <video/omapdss.h> -#include <plat/cpu.h> #include "dss.h" #include "dss_features.h" @@ -300,6 +299,12 @@ static struct { struct regulator *vdda_dac_reg; struct clk *tv_dac_clk; + + struct omap_video_timings timings; + enum omap_dss_venc_type type; + bool invert_polarity; + + struct omap_dss_output output; } venc; static inline void venc_write_reg(int idx, u32 val) @@ -424,65 +429,67 @@ static const struct venc_config *venc_timings_to_config( static int venc_power_on(struct omap_dss_device *dssdev) { + struct omap_overlay_manager *mgr = dssdev->output->manager; u32 l; int r; + r = venc_runtime_get(); + if (r) + goto err0; + venc_reset(); - venc_write_config(venc_timings_to_config(&dssdev->panel.timings)); + venc_write_config(venc_timings_to_config(&venc.timings)); - dss_set_venc_output(dssdev->phy.venc.type); + dss_set_venc_output(venc.type); dss_set_dac_pwrdn_bgz(1); l = 0; - if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) + if (venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE) l |= 1 << 1; else /* S-Video */ l |= (1 << 0) | (1 << 2); - if (dssdev->phy.venc.invert_polarity == false) + if (venc.invert_polarity == false) l |= 1 << 3; venc_write_reg(VENC_OUTPUT_CONTROL, l); - dss_mgr_set_timings(dssdev->manager, &dssdev->panel.timings); + dss_mgr_set_timings(mgr, &venc.timings); 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); + r = dss_mgr_enable(mgr); 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; } static void venc_power_off(struct omap_dss_device *dssdev) { + struct omap_overlay_manager *mgr = dssdev->output->manager; + venc_write_reg(VENC_OUTPUT_CONTROL, 0); dss_set_dac_pwrdn_bgz(0); - dss_mgr_disable(dssdev->manager); - - if (dssdev->platform_disable) - dssdev->platform_disable(dssdev); + dss_mgr_disable(mgr); regulator_disable(venc.vdda_dac_reg); + + venc_runtime_put(); } unsigned long venc_get_pixel_clock(void) @@ -491,171 +498,83 @@ 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; - } - - return snprintf(buf, PAGE_SIZE, "%s\n", ret); -} + struct omap_dss_output *out = dssdev->output; + int r; -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 (out == NULL || out->manager == NULL) { + DSSERR("Failed to enable display: no output/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))) + if (memcmp(&venc.timings, timings, sizeof(*timings))) venc.wss_data = 0; - dssdev->panel.timings = *timings; - if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) { - /* turn the venc off and on to get new timings to use */ - venc_panel_disable(dssdev); - venc_panel_enable(dssdev); - } else { - dss_mgr_set_timings(dssdev->manager, timings); - } + venc.timings = *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 +587,13 @@ 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; @@ -683,7 +602,7 @@ static int venc_set_wss(struct omap_dss_device *dssdev, u32 wss) mutex_lock(&venc.venc_lock); - config = venc_timings_to_config(&dssdev->panel.timings); + config = venc_timings_to_config(&venc.timings); /* Invert due to VENC_L21_WC_CTL:INV=1 */ venc.wss_data = (wss ^ 0xfffff) << 8; @@ -703,30 +622,25 @@ err: return r; } -static struct omap_dss_driver venc_driver = { - .probe = venc_panel_probe, - .remove = venc_panel_remove, +void omapdss_venc_set_type(struct omap_dss_device *dssdev, + enum omap_dss_venc_type type) +{ + mutex_lock(&venc.venc_lock); - .enable = venc_panel_enable, - .disable = venc_panel_disable, - .suspend = venc_panel_suspend, - .resume = venc_panel_resume, + venc.type = type; - .get_resolution = omapdss_default_get_resolution, - .get_recommended_bpp = omapdss_default_get_recommended_bpp, + mutex_unlock(&venc.venc_lock); +} - .set_timings = venc_set_timings, - .check_timings = venc_check_timings, +void omapdss_venc_invert_vid_out_polarity(struct omap_dss_device *dssdev, + bool invert_polarity) +{ + mutex_lock(&venc.venc_lock); - .get_wss = venc_get_wss, - .set_wss = venc_set_wss, + venc.invert_polarity = invert_polarity; - .driver = { - .name = "venc", - .owner = THIS_MODULE, - }, -}; -/* driver end */ + mutex_unlock(&venc.venc_lock); +} static int __init venc_init_display(struct omap_dss_device *dssdev) { @@ -752,11 +666,6 @@ static void venc_dump_regs(struct seq_file *s) { #define DUMPREG(r) seq_printf(s, "%-35s %08x\n", #r, venc_read_reg(r)) - if (cpu_is_omap44xx()) { - seq_printf(s, "VENC currently disabled on OMAP44xx\n"); - return; - } - if (venc_runtime_get()) return; @@ -832,10 +741,14 @@ static void venc_put_clocks(void) clk_put(venc.tv_dac_clk); } -static void __init venc_probe_pdata(struct platform_device *pdev) +static struct omap_dss_device * __init venc_find_dssdev(struct platform_device *pdev) { struct omap_dss_board_info *pdata = pdev->dev.platform_data; - int r, i; + const char *def_disp_name = dss_get_default_display_name(); + struct omap_dss_device *def_dssdev; + int i; + + def_dssdev = NULL; for (i = 0; i < pdata->num_devices; ++i) { struct omap_dss_device *dssdev = pdata->devices[i]; @@ -843,17 +756,69 @@ static void __init venc_probe_pdata(struct platform_device *pdev) if (dssdev->type != OMAP_DISPLAY_TYPE_VENC) continue; - r = venc_init_display(dssdev); - if (r) { - DSSERR("device %s init failed: %d\n", dssdev->name, r); - continue; + if (def_dssdev == NULL) + def_dssdev = dssdev; + + if (def_disp_name != NULL && + strcmp(dssdev->name, def_disp_name) == 0) { + def_dssdev = dssdev; + break; } + } + + return def_dssdev; +} + +static void __init venc_probe_pdata(struct platform_device *vencdev) +{ + struct omap_dss_device *plat_dssdev; + struct omap_dss_device *dssdev; + int r; + + plat_dssdev = venc_find_dssdev(vencdev); - r = omap_dss_register_device(dssdev, &pdev->dev, i); - if (r) - DSSERR("device %s register failed: %d\n", - dssdev->name, r); + if (!plat_dssdev) + return; + + dssdev = dss_alloc_and_init_device(&vencdev->dev); + if (!dssdev) + return; + + dss_copy_device_pdata(dssdev, plat_dssdev); + + dssdev->channel = OMAP_DSS_CHANNEL_DIGIT; + + r = venc_init_display(dssdev); + if (r) { + DSSERR("device %s init failed: %d\n", dssdev->name, r); + dss_put_device(dssdev); + return; } + + r = dss_add_device(dssdev); + if (r) { + DSSERR("device %s register failed: %d\n", dssdev->name, r); + dss_put_device(dssdev); + return; + } +} + +static void __init venc_init_output(struct platform_device *pdev) +{ + struct omap_dss_output *out = &venc.output; + + out->pdev = pdev; + out->id = OMAP_DSS_OUTPUT_VENC; + out->type = OMAP_DISPLAY_TYPE_VENC; + + dss_register_output(out); +} + +static void __exit venc_uninit_output(struct platform_device *pdev) +{ + struct omap_dss_output *out = &venc.output; + + dss_unregister_output(out); } /* VENC HW IP initialisation */ @@ -897,17 +862,19 @@ 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); + venc_init_output(pdev); + venc_probe_pdata(pdev); return 0; -err_reg_panel_driver: +err_panel_init: err_runtime_get: pm_runtime_disable(&pdev->dev); venc_put_clocks(); @@ -916,14 +883,16 @@ err_runtime_get: static int __exit omap_venchw_remove(struct platform_device *pdev) { - omap_dss_unregister_child_devices(&pdev->dev); + dss_unregister_child_devices(&pdev->dev); if (venc.vdda_dac_reg != NULL) { regulator_put(venc.vdda_dac_reg); venc.vdda_dac_reg = NULL; } - omap_dss_unregister_driver(&venc_driver); + venc_panel_exit(); + + venc_uninit_output(pdev); pm_runtime_disable(&pdev->dev); venc_put_clocks(); @@ -971,16 +940,10 @@ static struct platform_driver omap_venchw_driver = { int __init venc_init_platform_driver(void) { - if (cpu_is_omap44xx()) - return 0; - return platform_driver_probe(&omap_venchw_driver, omap_venchw_probe); } void __exit venc_uninit_platform_driver(void) { - if (cpu_is_omap44xx()) - return; - platform_driver_unregister(&omap_venchw_driver); } |