#include "drm_crtc_internal.h"
+static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev,
+ struct drm_mode_fb_cmd2 *r,
+ struct drm_file *file_priv);
+
/**
* drm_modeset_lock_all - take all modeset locks
* @dev: drm device
{ DRM_MODE_SCALE_ASPECT, "Full aspect" },
};
+static const struct drm_prop_enum_list drm_aspect_ratio_enum_list[] = {
+ { DRM_MODE_PICTURE_ASPECT_NONE, "Automatic" },
+ { DRM_MODE_PICTURE_ASPECT_4_3, "4:3" },
+ { DRM_MODE_PICTURE_ASPECT_16_9, "16:9" },
+};
+
/*
* Non-global properties, but "required" for certain connectors.
*/
}
EXPORT_SYMBOL(drm_get_format_name);
+/*
+ * Internal function to assign a slot in the object idr and optionally
+ * register the object into the idr.
+ */
+static int drm_mode_object_get_reg(struct drm_device *dev,
+ struct drm_mode_object *obj,
+ uint32_t obj_type,
+ bool register_obj)
+{
+ int ret;
+
+ mutex_lock(&dev->mode_config.idr_mutex);
+ ret = idr_alloc(&dev->mode_config.crtc_idr, register_obj ? obj : NULL, 1, 0, GFP_KERNEL);
+ if (ret >= 0) {
+ /*
+ * Set up the object linking under the protection of the idr
+ * lock so that other users can't see inconsistent state.
+ */
+ obj->id = ret;
+ obj->type = obj_type;
+ }
+ mutex_unlock(&dev->mode_config.idr_mutex);
+
+ return ret < 0 ? ret : 0;
+}
+
/**
* drm_mode_object_get - allocate a new modeset identifier
* @dev: DRM device
int drm_mode_object_get(struct drm_device *dev,
struct drm_mode_object *obj, uint32_t obj_type)
{
- int ret;
+ return drm_mode_object_get_reg(dev, obj, obj_type, true);
+}
+static void drm_mode_object_register(struct drm_device *dev,
+ struct drm_mode_object *obj)
+{
mutex_lock(&dev->mode_config.idr_mutex);
- ret = idr_alloc(&dev->mode_config.crtc_idr, obj, 1, 0, GFP_KERNEL);
- if (ret >= 0) {
- /*
- * Set up the object linking under the protection of the idr
- * lock so that other users can't see inconsistent state.
- */
- obj->id = ret;
- obj->type = obj_type;
- }
+ idr_replace(&dev->mode_config.crtc_idr, obj, obj->id);
mutex_unlock(&dev->mode_config.idr_mutex);
-
- return ret < 0 ? ret : 0;
}
/**
mutex_lock(&dev->mode_config.idr_mutex);
obj = idr_find(&dev->mode_config.crtc_idr, id);
- if (!obj || (type != DRM_MODE_OBJECT_ANY && obj->type != type) ||
- (obj->id != id))
+ if (obj && type != DRM_MODE_OBJECT_ANY && obj->type != type)
+ obj = NULL;
+ if (obj && obj->id != id)
+ obj = NULL;
+ /* don't leak out unref'd fb's */
+ if (obj && (obj->type == DRM_MODE_OBJECT_FB))
obj = NULL;
mutex_unlock(&dev->mode_config.idr_mutex);
* function.*/
WARN_ON(type == DRM_MODE_OBJECT_FB);
obj = _object_find(dev, id, type);
- /* don't leak out unref'd fb's */
- if (obj && (obj->type == DRM_MODE_OBJECT_FB))
- obj = NULL;
return obj;
}
EXPORT_SYMBOL(drm_mode_object_find);
*/
int drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *crtc,
struct drm_plane *primary,
- void *cursor,
+ struct drm_plane *cursor,
const struct drm_crtc_funcs *funcs)
{
struct drm_mode_config *config = &dev->mode_config;
config->num_crtc++;
crtc->primary = primary;
+ crtc->cursor = cursor;
if (primary)
primary->possible_crtcs = 1 << drm_crtc_index(crtc);
+ if (cursor)
+ cursor->possible_crtcs = 1 << drm_crtc_index(crtc);
out:
drm_modeset_unlock_all(dev);
drm_modeset_lock_all(dev);
- ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR);
+ ret = drm_mode_object_get_reg(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR, false);
if (ret)
goto out_unlock;
drm_object_attach_property(&connector->base,
dev->mode_config.dpms_property, 0);
+ connector->debugfs_entry = NULL;
+
out_put:
if (ret)
drm_mode_object_put(dev, &connector->base);
}
EXPORT_SYMBOL(drm_connector_cleanup);
+/**
+ * drm_connector_register - register a connector
+ * @connector: the connector to register
+ *
+ * Register userspace interfaces for a connector
+ *
+ * Returns:
+ * Zero on success, error code on failure.
+ */
+int drm_connector_register(struct drm_connector *connector)
+{
+ int ret;
+
+ drm_mode_object_register(connector->dev, &connector->base);
+
+ ret = drm_sysfs_connector_add(connector);
+ if (ret)
+ return ret;
+
+ ret = drm_debugfs_connector_add(connector);
+ if (ret) {
+ drm_sysfs_connector_remove(connector);
+ return ret;
+ }
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_connector_register);
+
+/**
+ * drm_connector_unregister - unregister a connector
+ * @connector: the connector to unregister
+ *
+ * Unregister userspace interfaces for a connector
+ */
+void drm_connector_unregister(struct drm_connector *connector)
+{
+ drm_sysfs_connector_remove(connector);
+ drm_debugfs_connector_remove(connector);
+}
+EXPORT_SYMBOL(drm_connector_unregister);
+
+
/**
* drm_connector_unplug_all - unregister connector userspace interfaces
* @dev: drm device
/* taking the mode config mutex ends up in a clash with sysfs */
list_for_each_entry(connector, &dev->mode_config.connector_list, head)
- drm_sysfs_connector_remove(connector);
+ drm_connector_unregister(connector);
}
EXPORT_SYMBOL(drm_connector_unplug_all);
{
struct drm_property *edid;
struct drm_property *dpms;
+ struct drm_property *dev_path;
/*
* Standard properties (apply to all connectors)
ARRAY_SIZE(drm_dpms_enum_list));
dev->mode_config.dpms_property = dpms;
+ dev_path = drm_property_create(dev,
+ DRM_MODE_PROP_BLOB |
+ DRM_MODE_PROP_IMMUTABLE,
+ "PATH", 0);
+ dev->mode_config.path_property = dev_path;
+
return 0;
}
}
EXPORT_SYMBOL(drm_mode_create_scaling_mode_property);
+/**
+ * drm_mode_create_aspect_ratio_property - create aspect ratio property
+ * @dev: DRM device
+ *
+ * Called by a driver the first time it's needed, must be attached to desired
+ * connectors.
+ *
+ * Returns:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_create_aspect_ratio_property(struct drm_device *dev)
+{
+ if (dev->mode_config.aspect_ratio_property)
+ return 0;
+
+ dev->mode_config.aspect_ratio_property =
+ drm_property_create_enum(dev, 0, "aspect ratio",
+ drm_aspect_ratio_enum_list,
+ ARRAY_SIZE(drm_aspect_ratio_enum_list));
+
+ if (dev->mode_config.aspect_ratio_property == NULL)
+ return -ENOMEM;
+
+ return 0;
+}
+EXPORT_SYMBOL(drm_mode_create_aspect_ratio_property);
+
/**
* drm_mode_create_dirty_property - create dirty property
* @dev: DRM device
}
EXPORT_SYMBOL(drm_mode_group_init_legacy_group);
+void drm_reinit_primary_mode_group(struct drm_device *dev)
+{
+ drm_modeset_lock_all(dev);
+ drm_mode_group_destroy(&dev->primary->mode_group);
+ drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group);
+ drm_modeset_unlock_all(dev);
+}
+EXPORT_SYMBOL(drm_reinit_primary_mode_group);
+
/**
* drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo
* @out: drm_mode_modeinfo struct to return to the user
return ret;
}
-/**
- * drm_mode_setplane - configure a plane's configuration
- * @dev: DRM device
- * @data: ioctl data*
- * @file_priv: DRM file info
+/*
+ * setplane_internal - setplane handler for internal callers
*
- * Set plane configuration, including placement, fb, scaling, and other factors.
- * Or pass a NULL fb to disable.
+ * Note that we assume an extra reference has already been taken on fb. If the
+ * update fails, this reference will be dropped before return; if it succeeds,
+ * the previous framebuffer (if any) will be unreferenced instead.
*
- * Returns:
- * Zero on success, errno on failure.
+ * src_{x,y,w,h} are provided in 16.16 fixed point format
*/
-int drm_mode_setplane(struct drm_device *dev, void *data,
- struct drm_file *file_priv)
+static int setplane_internal(struct drm_plane *plane,
+ struct drm_crtc *crtc,
+ struct drm_framebuffer *fb,
+ int32_t crtc_x, int32_t crtc_y,
+ uint32_t crtc_w, uint32_t crtc_h,
+ /* src_{x,y,w,h} values are 16.16 fixed point */
+ uint32_t src_x, uint32_t src_y,
+ uint32_t src_w, uint32_t src_h)
{
- struct drm_mode_set_plane *plane_req = data;
- struct drm_plane *plane;
- struct drm_crtc *crtc;
- struct drm_framebuffer *fb = NULL, *old_fb = NULL;
+ struct drm_device *dev = plane->dev;
+ struct drm_framebuffer *old_fb = NULL;
int ret = 0;
unsigned int fb_width, fb_height;
int i;
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
- /*
- * First, find the plane, crtc, and fb objects. If not available,
- * we don't bother to call the driver.
- */
- plane = drm_plane_find(dev, plane_req->plane_id);
- if (!plane) {
- DRM_DEBUG_KMS("Unknown plane ID %d\n",
- plane_req->plane_id);
- return -ENOENT;
- }
-
/* No fb means shut it down */
- if (!plane_req->fb_id) {
+ if (!fb) {
drm_modeset_lock_all(dev);
old_fb = plane->fb;
ret = plane->funcs->disable_plane(plane);
goto out;
}
- crtc = drm_crtc_find(dev, plane_req->crtc_id);
- if (!crtc) {
- DRM_DEBUG_KMS("Unknown crtc ID %d\n",
- plane_req->crtc_id);
- ret = -ENOENT;
- goto out;
- }
-
/* Check whether this plane is usable on this CRTC */
if (!(plane->possible_crtcs & drm_crtc_mask(crtc))) {
DRM_DEBUG_KMS("Invalid crtc for plane\n");
goto out;
}
- fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
- if (!fb) {
- DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
- plane_req->fb_id);
- ret = -ENOENT;
- goto out;
- }
-
/* Check whether this plane supports the fb pixel format. */
for (i = 0; i < plane->format_count; i++)
if (fb->pixel_format == plane->format_types[i])
fb_height = fb->height << 16;
/* Make sure source coordinates are inside the fb. */
- if (plane_req->src_w > fb_width ||
- plane_req->src_x > fb_width - plane_req->src_w ||
- plane_req->src_h > fb_height ||
- plane_req->src_y > fb_height - plane_req->src_h) {
+ if (src_w > fb_width ||
+ src_x > fb_width - src_w ||
+ src_h > fb_height ||
+ src_y > fb_height - src_h) {
DRM_DEBUG_KMS("Invalid source coordinates "
"%u.%06ux%u.%06u+%u.%06u+%u.%06u\n",
- plane_req->src_w >> 16,
- ((plane_req->src_w & 0xffff) * 15625) >> 10,
- plane_req->src_h >> 16,
- ((plane_req->src_h & 0xffff) * 15625) >> 10,
- plane_req->src_x >> 16,
- ((plane_req->src_x & 0xffff) * 15625) >> 10,
- plane_req->src_y >> 16,
- ((plane_req->src_y & 0xffff) * 15625) >> 10);
+ src_w >> 16, ((src_w & 0xffff) * 15625) >> 10,
+ src_h >> 16, ((src_h & 0xffff) * 15625) >> 10,
+ src_x >> 16, ((src_x & 0xffff) * 15625) >> 10,
+ src_y >> 16, ((src_y & 0xffff) * 15625) >> 10);
ret = -ENOSPC;
goto out;
}
- /* Give drivers some help against integer overflows */
- if (plane_req->crtc_w > INT_MAX ||
- plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
- plane_req->crtc_h > INT_MAX ||
- plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
- DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
- plane_req->crtc_w, plane_req->crtc_h,
- plane_req->crtc_x, plane_req->crtc_y);
- ret = -ERANGE;
- goto out;
- }
-
drm_modeset_lock_all(dev);
old_fb = plane->fb;
ret = plane->funcs->update_plane(plane, crtc, fb,
- plane_req->crtc_x, plane_req->crtc_y,
- plane_req->crtc_w, plane_req->crtc_h,
- plane_req->src_x, plane_req->src_y,
- plane_req->src_w, plane_req->src_h);
+ crtc_x, crtc_y, crtc_w, crtc_h,
+ src_x, src_y, src_w, src_h);
if (!ret) {
plane->crtc = crtc;
plane->fb = fb;
drm_framebuffer_unreference(old_fb);
return ret;
+
+}
+
+/**
+ * drm_mode_setplane - configure a plane's configuration
+ * @dev: DRM device
+ * @data: ioctl data*
+ * @file_priv: DRM file info
+ *
+ * Set plane configuration, including placement, fb, scaling, and other factors.
+ * Or pass a NULL fb to disable (planes may be disabled without providing a
+ * valid crtc).
+ *
+ * Returns:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_setplane(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ struct drm_mode_set_plane *plane_req = data;
+ struct drm_mode_object *obj;
+ struct drm_plane *plane;
+ struct drm_crtc *crtc = NULL;
+ struct drm_framebuffer *fb = NULL;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ /* Give drivers some help against integer overflows */
+ if (plane_req->crtc_w > INT_MAX ||
+ plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w ||
+ plane_req->crtc_h > INT_MAX ||
+ plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) {
+ DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n",
+ plane_req->crtc_w, plane_req->crtc_h,
+ plane_req->crtc_x, plane_req->crtc_y);
+ return -ERANGE;
+ }
+
+ /*
+ * First, find the plane, crtc, and fb objects. If not available,
+ * we don't bother to call the driver.
+ */
+ obj = drm_mode_object_find(dev, plane_req->plane_id,
+ DRM_MODE_OBJECT_PLANE);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown plane ID %d\n",
+ plane_req->plane_id);
+ return -ENOENT;
+ }
+ plane = obj_to_plane(obj);
+
+ if (plane_req->fb_id) {
+ fb = drm_framebuffer_lookup(dev, plane_req->fb_id);
+ if (!fb) {
+ DRM_DEBUG_KMS("Unknown framebuffer ID %d\n",
+ plane_req->fb_id);
+ return -ENOENT;
+ }
+
+ obj = drm_mode_object_find(dev, plane_req->crtc_id,
+ DRM_MODE_OBJECT_CRTC);
+ if (!obj) {
+ DRM_DEBUG_KMS("Unknown crtc ID %d\n",
+ plane_req->crtc_id);
+ return -ENOENT;
+ }
+ crtc = obj_to_crtc(obj);
+ }
+
+ /*
+ * setplane_internal will take care of deref'ing either the old or new
+ * framebuffer depending on success.
+ */
+ return setplane_internal(plane, crtc, fb,
+ plane_req->crtc_x, plane_req->crtc_y,
+ plane_req->crtc_w, plane_req->crtc_h,
+ plane_req->src_x, plane_req->src_y,
+ plane_req->src_w, plane_req->src_h);
}
/**
return ret;
}
+/**
+ * drm_mode_cursor_universal - translate legacy cursor ioctl call into a
+ * universal plane handler call
+ * @crtc: crtc to update cursor for
+ * @req: data pointer for the ioctl
+ * @file_priv: drm file for the ioctl call
+ *
+ * Legacy cursor ioctl's work directly with driver buffer handles. To
+ * translate legacy ioctl calls into universal plane handler calls, we need to
+ * wrap the native buffer handle in a drm_framebuffer.
+ *
+ * Note that we assume any handle passed to the legacy ioctls was a 32-bit ARGB
+ * buffer with a pitch of 4*width; the universal plane interface should be used
+ * directly in cases where the hardware can support other buffer settings and
+ * userspace wants to make use of these capabilities.
+ *
+ * Returns:
+ * Zero on success, errno on failure.
+ */
+static int drm_mode_cursor_universal(struct drm_crtc *crtc,
+ struct drm_mode_cursor2 *req,
+ struct drm_file *file_priv)
+{
+ struct drm_device *dev = crtc->dev;
+ struct drm_framebuffer *fb = NULL;
+ struct drm_mode_fb_cmd2 fbreq = {
+ .width = req->width,
+ .height = req->height,
+ .pixel_format = DRM_FORMAT_ARGB8888,
+ .pitches = { req->width * 4 },
+ .handles = { req->handle },
+ };
+ int32_t crtc_x, crtc_y;
+ uint32_t crtc_w = 0, crtc_h = 0;
+ uint32_t src_w = 0, src_h = 0;
+ int ret = 0;
+
+ BUG_ON(!crtc->cursor);
+
+ /*
+ * Obtain fb we'll be using (either new or existing) and take an extra
+ * reference to it if fb != null. setplane will take care of dropping
+ * the reference if the plane update fails.
+ */
+ if (req->flags & DRM_MODE_CURSOR_BO) {
+ if (req->handle) {
+ fb = add_framebuffer_internal(dev, &fbreq, file_priv);
+ if (IS_ERR(fb)) {
+ DRM_DEBUG_KMS("failed to wrap cursor buffer in drm framebuffer\n");
+ return PTR_ERR(fb);
+ }
+
+ drm_framebuffer_reference(fb);
+ } else {
+ fb = NULL;
+ }
+ } else {
+ mutex_lock(&dev->mode_config.mutex);
+ fb = crtc->cursor->fb;
+ if (fb)
+ drm_framebuffer_reference(fb);
+ mutex_unlock(&dev->mode_config.mutex);
+ }
+
+ if (req->flags & DRM_MODE_CURSOR_MOVE) {
+ crtc_x = req->x;
+ crtc_y = req->y;
+ } else {
+ crtc_x = crtc->cursor_x;
+ crtc_y = crtc->cursor_y;
+ }
+
+ if (fb) {
+ crtc_w = fb->width;
+ crtc_h = fb->height;
+ src_w = fb->width << 16;
+ src_h = fb->height << 16;
+ }
+
+ /*
+ * setplane_internal will take care of deref'ing either the old or new
+ * framebuffer depending on success.
+ */
+ ret = setplane_internal(crtc->cursor, crtc, fb,
+ crtc_x, crtc_y, crtc_w, crtc_h,
+ 0, 0, src_w, src_h);
+
+ /* Update successful; save new cursor position, if necessary */
+ if (ret == 0 && req->flags & DRM_MODE_CURSOR_MOVE) {
+ crtc->cursor_x = req->x;
+ crtc->cursor_y = req->y;
+ }
+
+ return ret;
+}
+
static int drm_mode_cursor_common(struct drm_device *dev,
struct drm_mode_cursor2 *req,
struct drm_file *file_priv)
return -ENOENT;
}
+ /*
+ * If this crtc has a universal cursor plane, call that plane's update
+ * handler rather than using legacy cursor handlers.
+ */
+ if (crtc->cursor)
+ return drm_mode_cursor_universal(crtc, req, file_priv);
+
drm_modeset_lock(&crtc->mutex, NULL);
if (req->flags & DRM_MODE_CURSOR_BO) {
if (!crtc->funcs->cursor_set && !crtc->funcs->cursor_set2) {
return 0;
}
-/**
- * drm_mode_addfb2 - add an FB to the graphics configuration
- * @dev: drm device for the ioctl
- * @data: data pointer for the ioctl
- * @file_priv: drm file for the ioctl call
- *
- * Add a new FB to the specified CRTC, given a user request with format. This is
- * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers
- * and uses fourcc codes as pixel format specifiers.
- *
- * Called by the user via ioctl.
- *
- * Returns:
- * Zero on success, errno on failure.
- */
-int drm_mode_addfb2(struct drm_device *dev,
- void *data, struct drm_file *file_priv)
+static struct drm_framebuffer *add_framebuffer_internal(struct drm_device *dev,
+ struct drm_mode_fb_cmd2 *r,
+ struct drm_file *file_priv)
{
- struct drm_mode_fb_cmd2 *r = data;
struct drm_mode_config *config = &dev->mode_config;
struct drm_framebuffer *fb;
int ret;
- if (!drm_core_check_feature(dev, DRIVER_MODESET))
- return -EINVAL;
-
if (r->flags & ~DRM_MODE_FB_INTERLACED) {
DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags);
- return -EINVAL;
+ return ERR_PTR(-EINVAL);
}
if ((config->min_width > r->width) || (r->width > config->max_width)) {
DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n",
r->width, config->min_width, config->max_width);
- return -EINVAL;
+ return ERR_PTR(-EINVAL);
}
if ((config->min_height > r->height) || (r->height > config->max_height)) {
DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n",
r->height, config->min_height, config->max_height);
- return -EINVAL;
+ return ERR_PTR(-EINVAL);
}
ret = framebuffer_check(r);
if (ret)
- return ret;
+ return ERR_PTR(ret);
fb = dev->mode_config.funcs->fb_create(dev, file_priv, r);
if (IS_ERR(fb)) {
DRM_DEBUG_KMS("could not create framebuffer\n");
- return PTR_ERR(fb);
+ return fb;
}
mutex_lock(&file_priv->fbs_lock);
DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id);
mutex_unlock(&file_priv->fbs_lock);
+ return fb;
+}
- return ret;
+/**
+ * drm_mode_addfb2 - add an FB to the graphics configuration
+ * @dev: drm device for the ioctl
+ * @data: data pointer for the ioctl
+ * @file_priv: drm file for the ioctl call
+ *
+ * Add a new FB to the specified CRTC, given a user request with format. This is
+ * the 2nd version of the addfb ioctl, which supports multi-planar framebuffers
+ * and uses fourcc codes as pixel format specifiers.
+ *
+ * Called by the user via ioctl.
+ *
+ * Returns:
+ * Zero on success, errno on failure.
+ */
+int drm_mode_addfb2(struct drm_device *dev,
+ void *data, struct drm_file *file_priv)
+{
+ struct drm_framebuffer *fb;
+
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ return -EINVAL;
+
+ fb = add_framebuffer_internal(dev, data, file_priv);
+ if (IS_ERR(fb))
+ return PTR_ERR(fb);
+
+ return 0;
}
/**
EXPORT_SYMBOL(drm_property_create);
/**
- * drm_property_create - create a new enumeration property type
+ * drm_property_create_enum - create a new enumeration property type
* @dev: drm device
* @flags: flags specifying the property type
* @name: name of the property
EXPORT_SYMBOL(drm_property_create_enum);
/**
- * drm_property_create - create a new bitmask property type
+ * drm_property_create_bitmask - create a new bitmask property type
* @dev: drm device
* @flags: flags specifying the property type
* @name: name of the property
struct drm_property *drm_property_create_bitmask(struct drm_device *dev,
int flags, const char *name,
const struct drm_prop_enum_list *props,
- int num_values)
+ int num_props,
+ uint64_t supported_bits)
{
struct drm_property *property;
- int i, ret;
+ int i, ret, index = 0;
+ int num_values = hweight64(supported_bits);
flags |= DRM_MODE_PROP_BITMASK;
property = drm_property_create(dev, flags, name, num_values);
if (!property)
return NULL;
+ for (i = 0; i < num_props; i++) {
+ if (!(supported_bits & (1ULL << props[i].type)))
+ continue;
- for (i = 0; i < num_values; i++) {
- ret = drm_property_add_enum(property, i,
+ if (WARN_ON(index >= num_values)) {
+ drm_property_destroy(dev, property);
+ return NULL;
+ }
+
+ ret = drm_property_add_enum(property, index++,
props[i].type,
props[i].name);
if (ret) {
}
/**
- * drm_property_create - create a new ranged property type
+ * drm_property_create_range - create a new ranged property type
* @dev: drm device
* @flags: flags specifying the property type
* @name: name of the property
return ret;
}
+int drm_mode_connector_set_path_property(struct drm_connector *connector,
+ char *path)
+{
+ struct drm_device *dev = connector->dev;
+ int ret, size;
+ size = strlen(path) + 1;
+
+ connector->path_blob_ptr = drm_property_create_blob(connector->dev,
+ size, path);
+ if (!connector->path_blob_ptr)
+ return -EINVAL;
+
+ ret = drm_object_property_set_value(&connector->base,
+ dev->mode_config.path_property,
+ connector->path_blob_ptr->base.id);
+ return ret;
+}
+EXPORT_SYMBOL(drm_mode_connector_set_path_property);
+
/**
* drm_mode_connector_update_edid_property - update the edid property of a connector
* @connector: drm connector
struct drm_device *dev = connector->dev;
int ret, size;
+ /* ignore requests to set edid when overridden */
+ if (connector->override_edid)
+ return 0;
+
if (connector->edid_blob_ptr)
drm_property_destroy_blob(dev, connector->edid_blob_ptr);
}
EXPORT_SYMBOL(drm_format_vert_chroma_subsampling);
+/**
+ * drm_rotation_simplify() - Try to simplify the rotation
+ * @rotation: Rotation to be simplified
+ * @supported_rotations: Supported rotations
+ *
+ * Attempt to simplify the rotation to a form that is supported.
+ * Eg. if the hardware supports everything except DRM_REFLECT_X
+ * one could call this function like this:
+ *
+ * drm_rotation_simplify(rotation, BIT(DRM_ROTATE_0) |
+ * BIT(DRM_ROTATE_90) | BIT(DRM_ROTATE_180) |
+ * BIT(DRM_ROTATE_270) | BIT(DRM_REFLECT_Y));
+ *
+ * to eliminate the DRM_ROTATE_X flag. Depending on what kind of
+ * transforms the hardware supports, this function may not
+ * be able to produce a supported transform, so the caller should
+ * check the result afterwards.
+ */
+unsigned int drm_rotation_simplify(unsigned int rotation,
+ unsigned int supported_rotations)
+{
+ if (rotation & ~supported_rotations) {
+ rotation ^= BIT(DRM_REFLECT_X) | BIT(DRM_REFLECT_Y);
+ rotation = (rotation & ~0xf) | BIT((ffs(rotation & 0xf) + 1) % 4);
+ }
+
+ return rotation;
+}
+EXPORT_SYMBOL(drm_rotation_simplify);
+
/**
* drm_mode_config_init - initialize DRM mode_configuration structure
* @dev: DRM device
drm_modeset_lock_fini(&dev->mode_config.connection_mutex);
}
EXPORT_SYMBOL(drm_mode_config_cleanup);
+
+struct drm_property *drm_mode_create_rotation_property(struct drm_device *dev,
+ unsigned int supported_rotations)
+{
+ static const struct drm_prop_enum_list props[] = {
+ { DRM_ROTATE_0, "rotate-0" },
+ { DRM_ROTATE_90, "rotate-90" },
+ { DRM_ROTATE_180, "rotate-180" },
+ { DRM_ROTATE_270, "rotate-270" },
+ { DRM_REFLECT_X, "reflect-x" },
+ { DRM_REFLECT_Y, "reflect-y" },
+ };
+
+ return drm_property_create_bitmask(dev, 0, "rotation",
+ props, ARRAY_SIZE(props),
+ supported_rotations);
+}
+EXPORT_SYMBOL(drm_mode_create_rotation_property);
projects / firefly-linux-kernel-4.4.55.git / blobdiff