diff options
Diffstat (limited to 'drivers/gpu/drm/drm_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/drm_crtc.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c index 19a289f01234..b6783f914246 100644 --- a/drivers/gpu/drm/drm_crtc.c +++ b/drivers/gpu/drm/drm_crtc.c @@ -2875,6 +2875,58 @@ int drm_connector_property_get_value(struct drm_connector *connector, } EXPORT_SYMBOL(drm_connector_property_get_value); +void drm_object_attach_property(struct drm_mode_object *obj, + struct drm_property *property, + uint64_t init_val) +{ + int i; + + for (i = 0; i < DRM_OBJECT_MAX_PROPERTY; i++) { + if (obj->properties->ids[i] == 0) { + obj->properties->ids[i] = property->base.id; + obj->properties->values[i] = init_val; + return; + } + } + + WARN(1, "Failed to attach object property (type: 0x%x). Please " + "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time you see " + "this message on the same object type.\n", obj->type); +} +EXPORT_SYMBOL(drm_object_attach_property); + +int drm_object_property_set_value(struct drm_mode_object *obj, + struct drm_property *property, uint64_t val) +{ + int i; + + for (i = 0; i < DRM_OBJECT_MAX_PROPERTY; i++) { + if (obj->properties->ids[i] == property->base.id) { + obj->properties->values[i] = val; + return 0; + } + } + + return -EINVAL; +} +EXPORT_SYMBOL(drm_object_property_set_value); + +int drm_object_property_get_value(struct drm_mode_object *obj, + struct drm_property *property, uint64_t *val) +{ + int i; + + for (i = 0; i < DRM_OBJECT_MAX_PROPERTY; i++) { + if (obj->properties->ids[i] == property->base.id) { + *val = obj->properties->values[i]; + return 0; + } + } + + return -EINVAL; +} +EXPORT_SYMBOL(drm_object_property_get_value); + int drm_mode_getproperty_ioctl(struct drm_device *dev, void *data, struct drm_file *file_priv) { @@ -3148,6 +3200,136 @@ out: return ret; } +static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, + struct drm_property *property, + uint64_t value) +{ + int ret = -EINVAL; + struct drm_connector *connector = obj_to_connector(obj); + + /* Do DPMS ourselves */ + if (property == connector->dev->mode_config.dpms_property) { + if (connector->funcs->dpms) + (*connector->funcs->dpms)(connector, (int)value); + ret = 0; + } else if (connector->funcs->set_property) + ret = connector->funcs->set_property(connector, property, value); + + /* store the property value if successful */ + if (!ret) + drm_connector_property_set_value(connector, property, value); + return ret; +} + +int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_obj_get_properties *arg = data; + struct drm_mode_object *obj; + int ret = 0; + int i; + int copied = 0; + int props_count = 0; + uint32_t __user *props_ptr; + uint64_t __user *prop_values_ptr; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + mutex_lock(&dev->mode_config.mutex); + + obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); + if (!obj) { + ret = -EINVAL; + goto out; + } + if (!obj->properties) { + ret = -EINVAL; + goto out; + } + + /* Assume [ prop, 0, prop ] won't happen (if we ever delete properties, + * we need to remove the gap inside the array). */ + for (props_count = 0; props_count < DRM_OBJECT_MAX_PROPERTY && + obj->properties->ids[props_count] != 0; props_count++) + ; + + /* This ioctl is called twice, once to determine how much space is + * needed, and the 2nd time to fill it. */ + if ((arg->count_props >= props_count) && props_count) { + copied = 0; + props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); + prop_values_ptr = (uint64_t __user *)(unsigned long) + (arg->prop_values_ptr); + for (i = 0; i < props_count; i++) { + if (put_user(obj->properties->ids[i], + props_ptr + copied)) { + ret = -EFAULT; + goto out; + } + if (put_user(obj->properties->values[i], + prop_values_ptr + copied)) { + ret = -EFAULT; + goto out; + } + copied++; + } + } + arg->count_props = props_count; +out: + mutex_unlock(&dev->mode_config.mutex); + return ret; +} + +int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, + struct drm_file *file_priv) +{ + struct drm_mode_obj_set_property *arg = data; + struct drm_mode_object *arg_obj; + struct drm_mode_object *prop_obj; + struct drm_property *property; + int ret = -EINVAL; + int i; + + if (!drm_core_check_feature(dev, DRIVER_MODESET)) + return -EINVAL; + + mutex_lock(&dev->mode_config.mutex); + + arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); + if (!arg_obj) + goto out; + if (!arg_obj->properties) + goto out; + + for (i = 0; i < DRM_OBJECT_MAX_PROPERTY; i++) + if (arg_obj->properties->ids[i] == arg->prop_id) + break; + + if (i == DRM_OBJECT_MAX_PROPERTY) + goto out; + + prop_obj = drm_mode_object_find(dev, arg->prop_id, + DRM_MODE_OBJECT_PROPERTY); + if (!prop_obj) + goto out; + property = obj_to_property(prop_obj); + + if (!drm_property_change_is_valid(property, arg->value)) + goto out; + + switch (arg_obj->type) { + case DRM_MODE_OBJECT_CONNECTOR: + ret = drm_mode_connector_set_obj_prop(arg_obj, property, + arg->value); + break; + } + +out: + mutex_unlock(&dev->mode_config.mutex); + return ret; +} + int drm_mode_connector_attach_encoder(struct drm_connector *connector, struct drm_encoder *encoder) { |