diff options
Diffstat (limited to 'linux-core/drm_sysfs.c')
| -rw-r--r-- | linux-core/drm_sysfs.c | 98 |
1 files changed, 98 insertions, 0 deletions
diff --git a/linux-core/drm_sysfs.c b/linux-core/drm_sysfs.c index 36b92224..5c384a60 100644 --- a/linux-core/drm_sysfs.c +++ b/linux-core/drm_sysfs.c @@ -231,6 +231,78 @@ static ssize_t modes_show(struct device *device, return written; } +static ssize_t subconnector_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct drm_connector *connector = container_of(device, struct drm_connector, kdev); + struct drm_device *dev = connector->dev; + struct drm_property *prop = NULL; + uint64_t subconnector; + int ret; + + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DVII: + prop = dev->mode_config.dvi_i_subconnector_property; + break; + case DRM_MODE_CONNECTOR_Composite: + case DRM_MODE_CONNECTOR_SVIDEO: + case DRM_MODE_CONNECTOR_Component: + prop = dev->mode_config.tv_subconnector_property; + break; + default: + DRM_ERROR("Wrong connector type for this property\n"); + return 0; + } + + if (!prop) { + DRM_ERROR("Unable to find subconnector property\n"); + return 0; + } + + ret = drm_connector_property_get_value(connector, prop, &subconnector); + if (ret) + return 0; + + return snprintf(buf, PAGE_SIZE, "%s", drm_get_subconnector_name((int)subconnector)); +} + +static ssize_t select_subconnector_show(struct device *device, + struct device_attribute *attr, + char *buf) +{ + struct drm_connector *connector = container_of(device, struct drm_connector, kdev); + struct drm_device *dev = connector->dev; + struct drm_property *prop = NULL; + uint64_t subconnector; + int ret; + + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DVII: + prop = dev->mode_config.dvi_i_select_subconnector_property; + break; + case DRM_MODE_CONNECTOR_Composite: + case DRM_MODE_CONNECTOR_SVIDEO: + case DRM_MODE_CONNECTOR_Component: + prop = dev->mode_config.tv_select_subconnector_property; + break; + default: + DRM_ERROR("Wrong connector type for this property\n"); + return 0; + } + + if (!prop) { + DRM_ERROR("Unable to find select subconnector property\n"); + return 0; + } + + ret = drm_connector_property_get_value(connector, prop, &subconnector); + if (ret) + return 0; + + return snprintf(buf, PAGE_SIZE, "%s", drm_get_select_subconnector_name((int)subconnector)); +} + static struct device_attribute connector_attrs[] = { __ATTR_RO(status), __ATTR_RO(enabled), @@ -238,6 +310,12 @@ static struct device_attribute connector_attrs[] = { __ATTR_RO(modes), }; +/* These attributes are for both DVI-I connectors and all types of tv-out. */ +static struct device_attribute connector_attrs_opt1[] = { + __ATTR_RO(subconnector), + __ATTR_RO(select_subconnector), +}; + static struct bin_attribute edid_attr = { .attr.name = "edid", .size = 128, @@ -282,12 +360,32 @@ int drm_sysfs_connector_add(struct drm_connector *connector) goto out; } + /* Standard attributes */ + for (i = 0; i < ARRAY_SIZE(connector_attrs); i++) { ret = device_create_file(&connector->kdev, &connector_attrs[i]); if (ret) goto err_out_files; } + /* Optional attributes */ + /* On the long run it maybe a good idea to make one set of optionals per connector type. */ + + switch (connector->connector_type) { + case DRM_MODE_CONNECTOR_DVII: + case DRM_MODE_CONNECTOR_Composite: + case DRM_MODE_CONNECTOR_SVIDEO: + case DRM_MODE_CONNECTOR_Component: + for (i = 0; i < ARRAY_SIZE(connector_attrs_opt1); i++) { + ret = device_create_file(&connector->kdev, &connector_attrs_opt1[i]); + if (ret) + goto err_out_files; + } + break; + default: + break; + } + ret = sysfs_create_bin_file(&connector->kdev.kobj, &edid_attr); if (ret) goto err_out_files; |