summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/drm_sysfs.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/drm_sysfs.c')
-rw-r--r--drivers/gpu/drm/drm_sysfs.c221
1 files changed, 151 insertions, 70 deletions
diff --git a/drivers/gpu/drm/drm_sysfs.c b/drivers/gpu/drm/drm_sysfs.c
index 5c99d3773212..0f6cd33b531f 100644
--- a/drivers/gpu/drm/drm_sysfs.c
+++ b/drivers/gpu/drm/drm_sysfs.c
@@ -166,23 +166,68 @@ void drm_sysfs_destroy(void)
/*
* Connector properties
*/
-static ssize_t status_show(struct device *device,
+static ssize_t status_store(struct device *device,
struct device_attribute *attr,
- char *buf)
+ const char *buf, size_t count)
{
struct drm_connector *connector = to_drm_connector(device);
- enum drm_connector_status status;
+ struct drm_device *dev = connector->dev;
+ enum drm_connector_status old_status;
int ret;
- ret = mutex_lock_interruptible(&connector->dev->mode_config.mutex);
+ ret = mutex_lock_interruptible(&dev->mode_config.mutex);
if (ret)
return ret;
- status = connector->funcs->detect(connector, true);
- mutex_unlock(&connector->dev->mode_config.mutex);
+ old_status = connector->status;
+
+ if (sysfs_streq(buf, "detect")) {
+ connector->force = 0;
+ connector->status = connector->funcs->detect(connector, true);
+ } else if (sysfs_streq(buf, "on")) {
+ connector->force = DRM_FORCE_ON;
+ } else if (sysfs_streq(buf, "on-digital")) {
+ connector->force = DRM_FORCE_ON_DIGITAL;
+ } else if (sysfs_streq(buf, "off")) {
+ connector->force = DRM_FORCE_OFF;
+ } else
+ ret = -EINVAL;
+
+ if (ret == 0 && connector->force) {
+ if (connector->force == DRM_FORCE_ON ||
+ connector->force == DRM_FORCE_ON_DIGITAL)
+ connector->status = connector_status_connected;
+ else
+ connector->status = connector_status_disconnected;
+ if (connector->funcs->force)
+ connector->funcs->force(connector);
+ }
+
+ if (old_status != connector->status) {
+ DRM_DEBUG_KMS("[CONNECTOR:%d:%s] status updated from %d to %d\n",
+ connector->base.id,
+ connector->name,
+ old_status, connector->status);
+
+ dev->mode_config.delayed_event = true;
+ if (dev->mode_config.poll_enabled)
+ schedule_delayed_work(&dev->mode_config.output_poll_work,
+ 0);
+ }
+
+ mutex_unlock(&dev->mode_config.mutex);
+
+ return ret ? ret : count;
+}
+
+static ssize_t status_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
return snprintf(buf, PAGE_SIZE, "%s\n",
- drm_get_connector_status_name(status));
+ drm_get_connector_status_name(connector->status));
}
static ssize_t dpms_show(struct device *device,
@@ -257,33 +302,65 @@ static ssize_t modes_show(struct device *device,
return written;
}
-static ssize_t subconnector_show(struct device *device,
- struct device_attribute *attr,
- char *buf)
+static ssize_t tv_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop;
+ uint64_t subconnector;
+ int ret;
+
+ prop = dev->mode_config.tv_subconnector_property;
+ if (!prop) {
+ DRM_ERROR("Unable to find subconnector property\n");
+ return 0;
+ }
+
+ ret = drm_object_property_get_value(&connector->base, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s",
+ drm_get_tv_subconnector_name((int)subconnector));
+}
+
+static ssize_t tv_select_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
{
struct drm_connector *connector = to_drm_connector(device);
struct drm_device *dev = connector->dev;
- struct drm_property *prop = NULL;
+ struct drm_property *prop;
uint64_t subconnector;
- int is_tv = 0;
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:
- case DRM_MODE_CONNECTOR_TV:
- prop = dev->mode_config.tv_subconnector_property;
- is_tv = 1;
- break;
- default:
- DRM_ERROR("Wrong connector type for this property\n");
- return 0;
+ prop = dev->mode_config.tv_select_subconnector_property;
+ if (!prop) {
+ DRM_ERROR("Unable to find select subconnector property\n");
+ return 0;
}
+ ret = drm_object_property_get_value(&connector->base, prop, &subconnector);
+ if (ret)
+ return 0;
+
+ return snprintf(buf, PAGE_SIZE, "%s",
+ drm_get_tv_select_name((int)subconnector));
+}
+
+static ssize_t dvii_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
+{
+ struct drm_connector *connector = to_drm_connector(device);
+ struct drm_device *dev = connector->dev;
+ struct drm_property *prop;
+ uint64_t subconnector;
+ int ret;
+
+ prop = dev->mode_config.dvi_i_subconnector_property;
if (!prop) {
DRM_ERROR("Unable to find subconnector property\n");
return 0;
@@ -293,38 +370,21 @@ static ssize_t subconnector_show(struct device *device,
if (ret)
return 0;
- return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
- drm_get_tv_subconnector_name((int)subconnector) :
+ return snprintf(buf, PAGE_SIZE, "%s",
drm_get_dvi_i_subconnector_name((int)subconnector));
}
-static ssize_t select_subconnector_show(struct device *device,
- struct device_attribute *attr,
- char *buf)
+static ssize_t dvii_select_subconnector_show(struct device *device,
+ struct device_attribute *attr,
+ char *buf)
{
struct drm_connector *connector = to_drm_connector(device);
struct drm_device *dev = connector->dev;
- struct drm_property *prop = NULL;
+ struct drm_property *prop;
uint64_t subconnector;
- int is_tv = 0;
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:
- case DRM_MODE_CONNECTOR_TV:
- prop = dev->mode_config.tv_select_subconnector_property;
- is_tv = 1;
- break;
- default:
- DRM_ERROR("Wrong connector type for this property\n");
- return 0;
- }
-
+ prop = dev->mode_config.dvi_i_select_subconnector_property;
if (!prop) {
DRM_ERROR("Unable to find select subconnector property\n");
return 0;
@@ -334,12 +394,11 @@ static ssize_t select_subconnector_show(struct device *device,
if (ret)
return 0;
- return snprintf(buf, PAGE_SIZE, "%s", is_tv ?
- drm_get_tv_select_name((int)subconnector) :
+ return snprintf(buf, PAGE_SIZE, "%s",
drm_get_dvi_i_select_name((int)subconnector));
}
-static DEVICE_ATTR_RO(status);
+static DEVICE_ATTR_RW(status);
static DEVICE_ATTR_RO(enabled);
static DEVICE_ATTR_RO(dpms);
static DEVICE_ATTR_RO(modes);
@@ -352,28 +411,44 @@ static struct attribute *connector_dev_attrs[] = {
NULL
};
-/* These attributes are for both DVI-I connectors and all types of tv-out. */
-static DEVICE_ATTR_RO(subconnector);
-static DEVICE_ATTR_RO(select_subconnector);
+static DEVICE_ATTR_RO(tv_subconnector);
+static DEVICE_ATTR_RO(tv_select_subconnector);
+
+static struct attribute *connector_tv_dev_attrs[] = {
+ &dev_attr_tv_subconnector.attr,
+ &dev_attr_tv_select_subconnector.attr,
+ NULL
+};
+
+static DEVICE_ATTR_RO(dvii_subconnector);
+static DEVICE_ATTR_RO(dvii_select_subconnector);
-static struct attribute *connector_opt_dev_attrs[] = {
- &dev_attr_subconnector.attr,
- &dev_attr_select_subconnector.attr,
+static struct attribute *connector_dvii_dev_attrs[] = {
+ &dev_attr_dvii_subconnector.attr,
+ &dev_attr_dvii_select_subconnector.attr,
NULL
};
-static umode_t connector_opt_dev_is_visible(struct kobject *kobj,
- struct attribute *attr, int idx)
+/* Connector type related helpers */
+static int kobj_connector_type(struct kobject *kobj)
{
struct device *dev = kobj_to_dev(kobj);
struct drm_connector *connector = to_drm_connector(dev);
- /*
- * In 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:
+ return connector->connector_type;
+}
+
+static umode_t connector_is_dvii(struct kobject *kobj,
+ struct attribute *attr, int idx)
+{
+ return kobj_connector_type(kobj) == DRM_MODE_CONNECTOR_DVII ?
+ attr->mode : 0;
+}
+
+static umode_t connector_is_tv(struct kobject *kobj,
+ struct attribute *attr, int idx)
+{
+ switch (kobj_connector_type(kobj)) {
case DRM_MODE_CONNECTOR_Composite:
case DRM_MODE_CONNECTOR_SVIDEO:
case DRM_MODE_CONNECTOR_Component:
@@ -401,14 +476,20 @@ static const struct attribute_group connector_dev_group = {
.bin_attrs = connector_bin_attrs,
};
-static const struct attribute_group connector_opt_dev_group = {
- .attrs = connector_opt_dev_attrs,
- .is_visible = connector_opt_dev_is_visible,
+static const struct attribute_group connector_tv_dev_group = {
+ .attrs = connector_tv_dev_attrs,
+ .is_visible = connector_is_tv,
+};
+
+static const struct attribute_group connector_dvii_dev_group = {
+ .attrs = connector_dvii_dev_attrs,
+ .is_visible = connector_is_dvii,
};
static const struct attribute_group *connector_dev_groups[] = {
&connector_dev_group,
- &connector_opt_dev_group,
+ &connector_tv_dev_group,
+ &connector_dvii_dev_group,
NULL
};
generated by cgit v1.2.3 (git 2.46.0) at 2026-04-26 17:13:48 +0000