diff options
| -rw-r--r-- | Documentation/arm/OMAP/DSS | 1 | ||||
| -rw-r--r-- | drivers/video/omap2/dss/venc.c | 54 |
2 files changed, 54 insertions, 1 deletions
diff --git a/Documentation/arm/OMAP/DSS b/Documentation/arm/OMAP/DSS index 888ae7b83ae4..d0aea9192204 100644 --- a/Documentation/arm/OMAP/DSS +++ b/Documentation/arm/OMAP/DSS @@ -156,6 +156,7 @@ timings Display timings (pixclock,xres/hfp/hbp/hsw,yres/vfp/vbp/vsw) "pal" and "ntsc" panel_name tear_elim Tearing elimination 0=off, 1=on +output_type Output type (video encoder only): "composite" or "svideo" There are also some debugfs files at <debugfs>/omapdss/ which show information about clocks and registers. diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c index e2374645a442..9475e6edce68 100644 --- a/drivers/video/omap2/dss/venc.c +++ b/drivers/video/omap2/dss/venc.c @@ -490,16 +490,68 @@ 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) +{ + 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.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); + } + } + + 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 0; + 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) |