| /* |
| * Copyright (c) 2006-2008 Intel Corporation |
| * Copyright (c) 2007 Dave Airlie <airlied@linux.ie> |
| * Copyright (c) 2008 Red Hat Inc. |
| * |
| * DRM core CRTC related functions |
| * |
| * Permission to use, copy, modify, distribute, and sell this software and its |
| * documentation for any purpose is hereby granted without fee, provided that |
| * the above copyright notice appear in all copies and that both that copyright |
| * notice and this permission notice appear in supporting documentation, and |
| * that the name of the copyright holders not be used in advertising or |
| * publicity pertaining to distribution of the software without specific, |
| * written prior permission. The copyright holders make no representations |
| * about the suitability of this software for any purpose. It is provided "as |
| * is" without express or implied warranty. |
| * |
| * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| * OF THIS SOFTWARE. |
| * |
| * Authors: |
| * Keith Packard |
| * Eric Anholt <eric@anholt.net> |
| * Dave Airlie <airlied@linux.ie> |
| * Jesse Barnes <jesse.barnes@intel.com> |
| */ |
| #include <linux/list.h> |
| #include "drm.h" |
| #include "drmP.h" |
| #include "drm_crtc.h" |
| |
| struct drm_prop_enum_list { |
| int type; |
| char *name; |
| }; |
| |
| /* Avoid boilerplate. I'm tired of typing. */ |
| #define DRM_ENUM_NAME_FN(fnname, list) \ |
| char *fnname(int val) \ |
| { \ |
| int i; \ |
| for (i = 0; i < ARRAY_SIZE(list); i++) { \ |
| if (list[i].type == val) \ |
| return list[i].name; \ |
| } \ |
| return "(unknown)"; \ |
| } |
| |
| /* |
| * Global properties |
| */ |
| static struct drm_prop_enum_list drm_dpms_enum_list[] = |
| { { DRM_MODE_DPMS_ON, "On" }, |
| { DRM_MODE_DPMS_STANDBY, "Standby" }, |
| { DRM_MODE_DPMS_SUSPEND, "Suspend" }, |
| { DRM_MODE_DPMS_OFF, "Off" } |
| }; |
| |
| DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) |
| |
| /* |
| * Optional properties |
| */ |
| static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = |
| { |
| { DRM_MODE_SCALE_NON_GPU, "Non-GPU" }, |
| { DRM_MODE_SCALE_FULLSCREEN, "Fullscreen" }, |
| { DRM_MODE_SCALE_NO_SCALE, "No scale" }, |
| { DRM_MODE_SCALE_ASPECT, "Aspect" }, |
| }; |
| |
| static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = |
| { |
| { DRM_MODE_DITHERING_OFF, "Off" }, |
| { DRM_MODE_DITHERING_ON, "On" }, |
| }; |
| |
| /* |
| * Non-global properties, but "required" for certain connectors. |
| */ |
| static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = |
| { |
| { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
| { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
| { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
| }; |
| |
| DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) |
| |
| static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = |
| { |
| { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
| { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ |
| { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ |
| }; |
| |
| DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, |
| drm_dvi_i_subconnector_enum_list) |
| |
| static struct drm_prop_enum_list drm_tv_select_enum_list[] = |
| { |
| { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ |
| { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
| { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
| { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
| { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
| }; |
| |
| DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) |
| |
| static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = |
| { |
| { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ |
| { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ |
| { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ |
| { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ |
| { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ |
| }; |
| |
| DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, |
| drm_tv_subconnector_enum_list) |
| |
| struct drm_conn_prop_enum_list { |
| int type; |
| char *name; |
| int count; |
| }; |
| |
| /* |
| * Connector and encoder types. |
| */ |
| static struct drm_conn_prop_enum_list drm_connector_enum_list[] = |
| { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, |
| { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, |
| { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, |
| { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, |
| { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, |
| { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, |
| { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, |
| { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, |
| { DRM_MODE_CONNECTOR_Component, "Component", 0 }, |
| { DRM_MODE_CONNECTOR_9PinDIN, "9-pin DIN", 0 }, |
| { DRM_MODE_CONNECTOR_DisplayPort, "DisplayPort", 0 }, |
| { DRM_MODE_CONNECTOR_HDMIA, "HDMI Type A", 0 }, |
| { DRM_MODE_CONNECTOR_HDMIB, "HDMI Type B", 0 }, |
| { DRM_MODE_CONNECTOR_TV, "TV", 0 }, |
| }; |
| |
| static struct drm_prop_enum_list drm_encoder_enum_list[] = |
| { { DRM_MODE_ENCODER_NONE, "None" }, |
| { DRM_MODE_ENCODER_DAC, "DAC" }, |
| { DRM_MODE_ENCODER_TMDS, "TMDS" }, |
| { DRM_MODE_ENCODER_LVDS, "LVDS" }, |
| { DRM_MODE_ENCODER_TVDAC, "TV" }, |
| }; |
| |
| char *drm_get_encoder_name(struct drm_encoder *encoder) |
| { |
| static char buf[32]; |
| |
| snprintf(buf, 32, "%s-%d", |
| drm_encoder_enum_list[encoder->encoder_type].name, |
| encoder->base.id); |
| return buf; |
| } |
| |
| char *drm_get_connector_name(struct drm_connector *connector) |
| { |
| static char buf[32]; |
| |
| snprintf(buf, 32, "%s-%d", |
| drm_connector_enum_list[connector->connector_type].name, |
| connector->connector_type_id); |
| return buf; |
| } |
| EXPORT_SYMBOL(drm_get_connector_name); |
| |
| char *drm_get_connector_status_name(enum drm_connector_status status) |
| { |
| if (status == connector_status_connected) |
| return "connected"; |
| else if (status == connector_status_disconnected) |
| return "disconnected"; |
| else |
| return "unknown"; |
| } |
| |
| /** |
| * drm_mode_object_get - allocate a new identifier |
| * @dev: DRM device |
| * @ptr: object pointer, used to generate unique ID |
| * @type: object type |
| * |
| * LOCKING: |
| * |
| * Create a unique identifier based on @ptr in @dev's identifier space. Used |
| * for tracking modes, CRTCs and connectors. |
| * |
| * RETURNS: |
| * New unique (relative to other objects in @dev) integer identifier for the |
| * object. |
| */ |
| static int drm_mode_object_get(struct drm_device *dev, |
| struct drm_mode_object *obj, uint32_t obj_type) |
| { |
| int new_id = 0; |
| int ret; |
| |
| again: |
| if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { |
| DRM_ERROR("Ran out memory getting a mode number\n"); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&dev->mode_config.idr_mutex); |
| ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); |
| mutex_unlock(&dev->mode_config.idr_mutex); |
| if (ret == -EAGAIN) |
| goto again; |
| |
| obj->id = new_id; |
| obj->type = obj_type; |
| return 0; |
| } |
| |
| /** |
| * drm_mode_object_put - free an identifer |
| * @dev: DRM device |
| * @id: ID to free |
| * |
| * LOCKING: |
| * Caller must hold DRM mode_config lock. |
| * |
| * Free @id from @dev's unique identifier pool. |
| */ |
| static void drm_mode_object_put(struct drm_device *dev, |
| struct drm_mode_object *object) |
| { |
| mutex_lock(&dev->mode_config.idr_mutex); |
| idr_remove(&dev->mode_config.crtc_idr, object->id); |
| mutex_unlock(&dev->mode_config.idr_mutex); |
| } |
| |
| void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type) |
| { |
| struct drm_mode_object *obj = NULL; |
| |
| mutex_lock(&dev->mode_config.idr_mutex); |
| obj = idr_find(&dev->mode_config.crtc_idr, id); |
| if (!obj || (obj->type != type) || (obj->id != id)) |
| obj = NULL; |
| mutex_unlock(&dev->mode_config.idr_mutex); |
| |
| return obj; |
| } |
| EXPORT_SYMBOL(drm_mode_object_find); |
| |
| /** |
| * drm_crtc_from_fb - find the CRTC structure associated with an fb |
| * @dev: DRM device |
| * @fb: framebuffer in question |
| * |
| * LOCKING: |
| * Caller must hold mode_config lock. |
| * |
| * Find CRTC in the mode_config structure that matches @fb. |
| * |
| * RETURNS: |
| * Pointer to the CRTC or NULL if it wasn't found. |
| */ |
| struct drm_crtc *drm_crtc_from_fb(struct drm_device *dev, |
| struct drm_framebuffer *fb) |
| { |
| struct drm_crtc *crtc; |
| |
| list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| if (crtc->fb == fb) |
| return crtc; |
| } |
| return NULL; |
| } |
| |
| /** |
| * drm_framebuffer_init - initialize a framebuffer |
| * @dev: DRM device |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Allocates an ID for the framebuffer's parent mode object, sets its mode |
| * functions & device file and adds it to the master fd list. |
| * |
| * RETURNS: |
| * Zero on success, error code on falure. |
| */ |
| int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, |
| const struct drm_framebuffer_funcs *funcs) |
| { |
| int ret; |
| |
| ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); |
| if (ret) { |
| return ret; |
| } |
| |
| fb->dev = dev; |
| fb->funcs = funcs; |
| dev->mode_config.num_fb++; |
| list_add(&fb->head, &dev->mode_config.fb_list); |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_framebuffer_init); |
| |
| /** |
| * drm_framebuffer_cleanup - remove a framebuffer object |
| * @fb: framebuffer to remove |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes |
| * it, setting it to NULL. |
| */ |
| void drm_framebuffer_cleanup(struct drm_framebuffer *fb) |
| { |
| struct drm_device *dev = fb->dev; |
| struct drm_crtc *crtc; |
| |
| /* remove from any CRTC */ |
| list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { |
| if (crtc->fb == fb) |
| crtc->fb = NULL; |
| } |
| |
| drm_mode_object_put(dev, &fb->base); |
| list_del(&fb->head); |
| dev->mode_config.num_fb--; |
| } |
| EXPORT_SYMBOL(drm_framebuffer_cleanup); |
| |
| /** |
| * drm_crtc_init - Initialise a new CRTC object |
| * @dev: DRM device |
| * @crtc: CRTC object to init |
| * @funcs: callbacks for the new CRTC |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Inits a new object created as base part of an driver crtc object. |
| */ |
| void drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, |
| const struct drm_crtc_funcs *funcs) |
| { |
| crtc->dev = dev; |
| crtc->funcs = funcs; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); |
| |
| list_add_tail(&crtc->head, &dev->mode_config.crtc_list); |
| dev->mode_config.num_crtc++; |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| EXPORT_SYMBOL(drm_crtc_init); |
| |
| /** |
| * drm_crtc_cleanup - Cleans up the core crtc usage. |
| * @crtc: CRTC to cleanup |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Cleanup @crtc. Removes from drm modesetting space |
| * does NOT free object, caller does that. |
| */ |
| void drm_crtc_cleanup(struct drm_crtc *crtc) |
| { |
| struct drm_device *dev = crtc->dev; |
| |
| if (crtc->gamma_store) { |
| kfree(crtc->gamma_store); |
| crtc->gamma_store = NULL; |
| } |
| |
| drm_mode_object_put(dev, &crtc->base); |
| list_del(&crtc->head); |
| dev->mode_config.num_crtc--; |
| } |
| EXPORT_SYMBOL(drm_crtc_cleanup); |
| |
| /** |
| * drm_mode_probed_add - add a mode to a connector's probed mode list |
| * @connector: connector the new mode |
| * @mode: mode data |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Add @mode to @connector's mode list for later use. |
| */ |
| void drm_mode_probed_add(struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| list_add(&mode->head, &connector->probed_modes); |
| } |
| EXPORT_SYMBOL(drm_mode_probed_add); |
| |
| /** |
| * drm_mode_remove - remove and free a mode |
| * @connector: connector list to modify |
| * @mode: mode to remove |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Remove @mode from @connector's mode list, then free it. |
| */ |
| void drm_mode_remove(struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| list_del(&mode->head); |
| kfree(mode); |
| } |
| EXPORT_SYMBOL(drm_mode_remove); |
| |
| /** |
| * drm_connector_init - Init a preallocated connector |
| * @dev: DRM device |
| * @connector: the connector to init |
| * @funcs: callbacks for this connector |
| * @name: user visible name of the connector |
| * |
| * LOCKING: |
| * Caller must hold @dev's mode_config lock. |
| * |
| * Initialises a preallocated connector. Connectors should be |
| * subclassed as part of driver connector objects. |
| */ |
| void drm_connector_init(struct drm_device *dev, |
| struct drm_connector *connector, |
| const struct drm_connector_funcs *funcs, |
| int connector_type) |
| { |
| mutex_lock(&dev->mode_config.mutex); |
| |
| connector->dev = dev; |
| connector->funcs = funcs; |
| drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); |
| connector->connector_type = connector_type; |
| connector->connector_type_id = |
| ++drm_connector_enum_list[connector_type].count; /* TODO */ |
| INIT_LIST_HEAD(&connector->user_modes); |
| INIT_LIST_HEAD(&connector->probed_modes); |
| INIT_LIST_HEAD(&connector->modes); |
| connector->edid_blob_ptr = NULL; |
| |
| list_add_tail(&connector->head, &dev->mode_config.connector_list); |
| dev->mode_config.num_connector++; |
| |
| drm_connector_attach_property(connector, |
| dev->mode_config.edid_property, 0); |
| |
| drm_connector_attach_property(connector, |
| dev->mode_config.dpms_property, 0); |
| |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| EXPORT_SYMBOL(drm_connector_init); |
| |
| /** |
| * drm_connector_cleanup - cleans up an initialised connector |
| * @connector: connector to cleanup |
| * |
| * LOCKING: |
| * Caller must hold @dev's mode_config lock. |
| * |
| * Cleans up the connector but doesn't free the object. |
| */ |
| void drm_connector_cleanup(struct drm_connector *connector) |
| { |
| struct drm_device *dev = connector->dev; |
| struct drm_display_mode *mode, *t; |
| |
| list_for_each_entry_safe(mode, t, &connector->probed_modes, head) |
| drm_mode_remove(connector, mode); |
| |
| list_for_each_entry_safe(mode, t, &connector->modes, head) |
| drm_mode_remove(connector, mode); |
| |
| list_for_each_entry_safe(mode, t, &connector->user_modes, head) |
| drm_mode_remove(connector, mode); |
| |
| mutex_lock(&dev->mode_config.mutex); |
| drm_mode_object_put(dev, &connector->base); |
| list_del(&connector->head); |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| EXPORT_SYMBOL(drm_connector_cleanup); |
| |
| void drm_encoder_init(struct drm_device *dev, |
| struct drm_encoder *encoder, |
| const struct drm_encoder_funcs *funcs, |
| int encoder_type) |
| { |
| mutex_lock(&dev->mode_config.mutex); |
| |
| encoder->dev = dev; |
| |
| drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); |
| encoder->encoder_type = encoder_type; |
| encoder->funcs = funcs; |
| |
| list_add_tail(&encoder->head, &dev->mode_config.encoder_list); |
| dev->mode_config.num_encoder++; |
| |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| EXPORT_SYMBOL(drm_encoder_init); |
| |
| void drm_encoder_cleanup(struct drm_encoder *encoder) |
| { |
| struct drm_device *dev = encoder->dev; |
| mutex_lock(&dev->mode_config.mutex); |
| drm_mode_object_put(dev, &encoder->base); |
| list_del(&encoder->head); |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| EXPORT_SYMBOL(drm_encoder_cleanup); |
| |
| /** |
| * drm_mode_create - create a new display mode |
| * @dev: DRM device |
| * |
| * LOCKING: |
| * Caller must hold DRM mode_config lock. |
| * |
| * Create a new drm_display_mode, give it an ID, and return it. |
| * |
| * RETURNS: |
| * Pointer to new mode on success, NULL on error. |
| */ |
| struct drm_display_mode *drm_mode_create(struct drm_device *dev) |
| { |
| struct drm_display_mode *nmode; |
| |
| nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); |
| if (!nmode) |
| return NULL; |
| |
| drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE); |
| return nmode; |
| } |
| EXPORT_SYMBOL(drm_mode_create); |
| |
| /** |
| * drm_mode_destroy - remove a mode |
| * @dev: DRM device |
| * @mode: mode to remove |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Free @mode's unique identifier, then free it. |
| */ |
| void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) |
| { |
| drm_mode_object_put(dev, &mode->base); |
| |
| kfree(mode); |
| } |
| EXPORT_SYMBOL(drm_mode_destroy); |
| |
| static int drm_mode_create_standard_connector_properties(struct drm_device *dev) |
| { |
| struct drm_property *edid; |
| struct drm_property *dpms; |
| int i; |
| |
| /* |
| * Standard properties (apply to all connectors) |
| */ |
| edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | |
| DRM_MODE_PROP_IMMUTABLE, |
| "EDID", 0); |
| dev->mode_config.edid_property = edid; |
| |
| dpms = drm_property_create(dev, DRM_MODE_PROP_ENUM, |
| "DPMS", ARRAY_SIZE(drm_dpms_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++) |
| drm_property_add_enum(dpms, i, drm_dpms_enum_list[i].type, |
| drm_dpms_enum_list[i].name); |
| dev->mode_config.dpms_property = dpms; |
| |
| return 0; |
| } |
| |
| /** |
| * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties |
| * @dev: DRM device |
| * |
| * Called by a driver the first time a DVI-I connector is made. |
| */ |
| int drm_mode_create_dvi_i_properties(struct drm_device *dev) |
| { |
| struct drm_property *dvi_i_selector; |
| struct drm_property *dvi_i_subconnector; |
| int i; |
| |
| if (dev->mode_config.dvi_i_select_subconnector_property) |
| return 0; |
| |
| dvi_i_selector = |
| drm_property_create(dev, DRM_MODE_PROP_ENUM, |
| "select subconnector", |
| ARRAY_SIZE(drm_dvi_i_select_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_dvi_i_select_enum_list); i++) |
| drm_property_add_enum(dvi_i_selector, i, |
| drm_dvi_i_select_enum_list[i].type, |
| drm_dvi_i_select_enum_list[i].name); |
| dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; |
| |
| dvi_i_subconnector = |
| drm_property_create(dev, DRM_MODE_PROP_ENUM | |
| DRM_MODE_PROP_IMMUTABLE, |
| "subconnector", |
| ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_dvi_i_subconnector_enum_list); i++) |
| drm_property_add_enum(dvi_i_subconnector, i, |
| drm_dvi_i_subconnector_enum_list[i].type, |
| drm_dvi_i_subconnector_enum_list[i].name); |
| dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); |
| |
| /** |
| * drm_create_tv_properties - create TV specific connector properties |
| * @dev: DRM device |
| * @num_modes: number of different TV formats (modes) supported |
| * @modes: array of pointers to strings containing name of each format |
| * |
| * Called by a driver's TV initialization routine, this function creates |
| * the TV specific connector properties for a given device. Caller is |
| * responsible for allocating a list of format names and passing them to |
| * this routine. |
| */ |
| int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, |
| char *modes[]) |
| { |
| struct drm_property *tv_selector; |
| struct drm_property *tv_subconnector; |
| int i; |
| |
| if (dev->mode_config.tv_select_subconnector_property) |
| return 0; |
| |
| /* |
| * Basic connector properties |
| */ |
| tv_selector = drm_property_create(dev, DRM_MODE_PROP_ENUM, |
| "select subconnector", |
| ARRAY_SIZE(drm_tv_select_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_tv_select_enum_list); i++) |
| drm_property_add_enum(tv_selector, i, |
| drm_tv_select_enum_list[i].type, |
| drm_tv_select_enum_list[i].name); |
| dev->mode_config.tv_select_subconnector_property = tv_selector; |
| |
| tv_subconnector = |
| drm_property_create(dev, DRM_MODE_PROP_ENUM | |
| DRM_MODE_PROP_IMMUTABLE, "subconnector", |
| ARRAY_SIZE(drm_tv_subconnector_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_tv_subconnector_enum_list); i++) |
| drm_property_add_enum(tv_subconnector, i, |
| drm_tv_subconnector_enum_list[i].type, |
| drm_tv_subconnector_enum_list[i].name); |
| dev->mode_config.tv_subconnector_property = tv_subconnector; |
| |
| /* |
| * Other, TV specific properties: margins & TV modes. |
| */ |
| dev->mode_config.tv_left_margin_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "left margin", 2); |
| dev->mode_config.tv_left_margin_property->values[0] = 0; |
| dev->mode_config.tv_left_margin_property->values[1] = 100; |
| |
| dev->mode_config.tv_right_margin_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "right margin", 2); |
| dev->mode_config.tv_right_margin_property->values[0] = 0; |
| dev->mode_config.tv_right_margin_property->values[1] = 100; |
| |
| dev->mode_config.tv_top_margin_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "top margin", 2); |
| dev->mode_config.tv_top_margin_property->values[0] = 0; |
| dev->mode_config.tv_top_margin_property->values[1] = 100; |
| |
| dev->mode_config.tv_bottom_margin_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "bottom margin", 2); |
| dev->mode_config.tv_bottom_margin_property->values[0] = 0; |
| dev->mode_config.tv_bottom_margin_property->values[1] = 100; |
| |
| dev->mode_config.tv_mode_property = |
| drm_property_create(dev, DRM_MODE_PROP_ENUM, |
| "mode", num_modes); |
| for (i = 0; i < num_modes; i++) |
| drm_property_add_enum(dev->mode_config.tv_mode_property, i, |
| i, modes[i]); |
| |
| dev->mode_config.tv_brightness_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "brightness", 2); |
| dev->mode_config.tv_brightness_property->values[0] = 0; |
| dev->mode_config.tv_brightness_property->values[1] = 100; |
| |
| dev->mode_config.tv_contrast_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "contrast", 2); |
| dev->mode_config.tv_contrast_property->values[0] = 0; |
| dev->mode_config.tv_contrast_property->values[1] = 100; |
| |
| dev->mode_config.tv_flicker_reduction_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "flicker reduction", 2); |
| dev->mode_config.tv_flicker_reduction_property->values[0] = 0; |
| dev->mode_config.tv_flicker_reduction_property->values[1] = 100; |
| |
| dev->mode_config.tv_overscan_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "overscan", 2); |
| dev->mode_config.tv_overscan_property->values[0] = 0; |
| dev->mode_config.tv_overscan_property->values[1] = 100; |
| |
| dev->mode_config.tv_saturation_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "saturation", 2); |
| dev->mode_config.tv_saturation_property->values[0] = 0; |
| dev->mode_config.tv_saturation_property->values[1] = 100; |
| |
| dev->mode_config.tv_hue_property = |
| drm_property_create(dev, DRM_MODE_PROP_RANGE, |
| "hue", 2); |
| dev->mode_config.tv_hue_property->values[0] = 0; |
| dev->mode_config.tv_hue_property->values[1] = 100; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_mode_create_tv_properties); |
| |
| /** |
| * drm_mode_create_scaling_mode_property - create scaling mode property |
| * @dev: DRM device |
| * |
| * Called by a driver the first time it's needed, must be attached to desired |
| * connectors. |
| */ |
| int drm_mode_create_scaling_mode_property(struct drm_device *dev) |
| { |
| struct drm_property *scaling_mode; |
| int i; |
| |
| if (dev->mode_config.scaling_mode_property) |
| return 0; |
| |
| scaling_mode = |
| drm_property_create(dev, DRM_MODE_PROP_ENUM, "scaling mode", |
| ARRAY_SIZE(drm_scaling_mode_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_scaling_mode_enum_list); i++) |
| drm_property_add_enum(scaling_mode, i, |
| drm_scaling_mode_enum_list[i].type, |
| drm_scaling_mode_enum_list[i].name); |
| |
| dev->mode_config.scaling_mode_property = scaling_mode; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); |
| |
| /** |
| * drm_mode_create_dithering_property - create dithering property |
| * @dev: DRM device |
| * |
| * Called by a driver the first time it's needed, must be attached to desired |
| * connectors. |
| */ |
| int drm_mode_create_dithering_property(struct drm_device *dev) |
| { |
| struct drm_property *dithering_mode; |
| int i; |
| |
| if (dev->mode_config.dithering_mode_property) |
| return 0; |
| |
| dithering_mode = |
| drm_property_create(dev, DRM_MODE_PROP_ENUM, "dithering", |
| ARRAY_SIZE(drm_dithering_mode_enum_list)); |
| for (i = 0; i < ARRAY_SIZE(drm_dithering_mode_enum_list); i++) |
| drm_property_add_enum(dithering_mode, i, |
| drm_dithering_mode_enum_list[i].type, |
| drm_dithering_mode_enum_list[i].name); |
| dev->mode_config.dithering_mode_property = dithering_mode; |
| |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_mode_create_dithering_property); |
| |
| /** |
| * drm_mode_config_init - initialize DRM mode_configuration structure |
| * @dev: DRM device |
| * |
| * LOCKING: |
| * None, should happen single threaded at init time. |
| * |
| * Initialize @dev's mode_config structure, used for tracking the graphics |
| * configuration of @dev. |
| */ |
| void drm_mode_config_init(struct drm_device *dev) |
| { |
| mutex_init(&dev->mode_config.mutex); |
| mutex_init(&dev->mode_config.idr_mutex); |
| INIT_LIST_HEAD(&dev->mode_config.fb_list); |
| INIT_LIST_HEAD(&dev->mode_config.fb_kernel_list); |
| INIT_LIST_HEAD(&dev->mode_config.crtc_list); |
| INIT_LIST_HEAD(&dev->mode_config.connector_list); |
| INIT_LIST_HEAD(&dev->mode_config.encoder_list); |
| INIT_LIST_HEAD(&dev->mode_config.property_list); |
| INIT_LIST_HEAD(&dev->mode_config.property_blob_list); |
| idr_init(&dev->mode_config.crtc_idr); |
| |
| mutex_lock(&dev->mode_config.mutex); |
| drm_mode_create_standard_connector_properties(dev); |
| mutex_unlock(&dev->mode_config.mutex); |
| |
| /* Just to be sure */ |
| dev->mode_config.num_fb = 0; |
| dev->mode_config.num_connector = 0; |
| dev->mode_config.num_crtc = 0; |
| dev->mode_config.num_encoder = 0; |
| } |
| EXPORT_SYMBOL(drm_mode_config_init); |
| |
| int drm_mode_group_init(struct drm_device *dev, struct drm_mode_group *group) |
| { |
| uint32_t total_objects = 0; |
| |
| total_objects += dev->mode_config.num_crtc; |
| total_objects += dev->mode_config.num_connector; |
| total_objects += dev->mode_config.num_encoder; |
| |
| if (total_objects == 0) |
| return -EINVAL; |
| |
| group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); |
| if (!group->id_list) |
| return -ENOMEM; |
| |
| group->num_crtcs = 0; |
| group->num_connectors = 0; |
| group->num_encoders = 0; |
| return 0; |
| } |
| |
| int drm_mode_group_init_legacy_group(struct drm_device *dev, |
| struct drm_mode_group *group) |
| { |
| struct drm_crtc *crtc; |
| struct drm_encoder *encoder; |
| struct drm_connector *connector; |
| int ret; |
| |
| if ((ret = drm_mode_group_init(dev, group))) |
| return ret; |
| |
| list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) |
| group->id_list[group->num_crtcs++] = crtc->base.id; |
| |
| list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) |
| group->id_list[group->num_crtcs + group->num_encoders++] = |
| encoder->base.id; |
| |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) |
| group->id_list[group->num_crtcs + group->num_encoders + |
| group->num_connectors++] = connector->base.id; |
| |
| return 0; |
| } |
| |
| /** |
| * drm_mode_config_cleanup - free up DRM mode_config info |
| * @dev: DRM device |
| * |
| * LOCKING: |
| * Caller must hold mode config lock. |
| * |
| * Free up all the connectors and CRTCs associated with this DRM device, then |
| * free up the framebuffers and associated buffer objects. |
| * |
| * FIXME: cleanup any dangling user buffer objects too |
| */ |
| void drm_mode_config_cleanup(struct drm_device *dev) |
| { |
| struct drm_connector *connector, *ot; |
| struct drm_crtc *crtc, *ct; |
| struct drm_encoder *encoder, *enct; |
| struct drm_framebuffer *fb, *fbt; |
| struct drm_property *property, *pt; |
| |
| list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, |
| head) { |
| encoder->funcs->destroy(encoder); |
| } |
| |
| list_for_each_entry_safe(connector, ot, |
| &dev->mode_config.connector_list, head) { |
| connector->funcs->destroy(connector); |
| } |
| |
| list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, |
| head) { |
| drm_property_destroy(dev, property); |
| } |
| |
| list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { |
| fb->funcs->destroy(fb); |
| } |
| |
| list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { |
| crtc->funcs->destroy(crtc); |
| } |
| |
| } |
| EXPORT_SYMBOL(drm_mode_config_cleanup); |
| |
| /** |
| * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo |
| * @out: drm_mode_modeinfo struct to return to the user |
| * @in: drm_display_mode to use |
| * |
| * LOCKING: |
| * None. |
| * |
| * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to |
| * the user. |
| */ |
| void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, |
| struct drm_display_mode *in) |
| { |
| out->clock = in->clock; |
| out->hdisplay = in->hdisplay; |
| out->hsync_start = in->hsync_start; |
| out->hsync_end = in->hsync_end; |
| out->htotal = in->htotal; |
| out->hskew = in->hskew; |
| out->vdisplay = in->vdisplay; |
| out->vsync_start = in->vsync_start; |
| out->vsync_end = in->vsync_end; |
| out->vtotal = in->vtotal; |
| out->vscan = in->vscan; |
| out->vrefresh = in->vrefresh; |
| out->flags = in->flags; |
| out->type = in->type; |
| strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); |
| out->name[DRM_DISPLAY_MODE_LEN-1] = 0; |
| } |
| |
| /** |
| * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode |
| * @out: drm_display_mode to return to the user |
| * @in: drm_mode_modeinfo to use |
| * |
| * LOCKING: |
| * None. |
| * |
| * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to |
| * the caller. |
| */ |
| void drm_crtc_convert_umode(struct drm_display_mode *out, |
| struct drm_mode_modeinfo *in) |
| { |
| out->clock = in->clock; |
| out->hdisplay = in->hdisplay; |
| out->hsync_start = in->hsync_start; |
| out->hsync_end = in->hsync_end; |
| out->htotal = in->htotal; |
| out->hskew = in->hskew; |
| out->vdisplay = in->vdisplay; |
| out->vsync_start = in->vsync_start; |
| out->vsync_end = in->vsync_end; |
| out->vtotal = in->vtotal; |
| out->vscan = in->vscan; |
| out->vrefresh = in->vrefresh; |
| out->flags = in->flags; |
| out->type = in->type; |
| strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); |
| out->name[DRM_DISPLAY_MODE_LEN-1] = 0; |
| } |
| |
| /** |
| * drm_mode_getresources - get graphics configuration |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Takes mode config lock. |
| * |
| * Construct a set of configuration description structures and return |
| * them to the user, including CRTC, connector and framebuffer configuration. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_getresources(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_mode_card_res *card_res = data; |
| struct list_head *lh; |
| struct drm_framebuffer *fb; |
| struct drm_connector *connector; |
| struct drm_crtc *crtc; |
| struct drm_encoder *encoder; |
| int ret = 0; |
| int connector_count = 0; |
| int crtc_count = 0; |
| int fb_count = 0; |
| int encoder_count = 0; |
| int copied = 0, i; |
| uint32_t __user *fb_id; |
| uint32_t __user *crtc_id; |
| uint32_t __user *connector_id; |
| uint32_t __user *encoder_id; |
| struct drm_mode_group *mode_group; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| /* |
| * For the non-control nodes we need to limit the list of resources |
| * by IDs in the group list for this node |
| */ |
| list_for_each(lh, &file_priv->fbs) |
| fb_count++; |
| |
| mode_group = &file_priv->master->minor->mode_group; |
| if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
| |
| list_for_each(lh, &dev->mode_config.crtc_list) |
| crtc_count++; |
| |
| list_for_each(lh, &dev->mode_config.connector_list) |
| connector_count++; |
| |
| list_for_each(lh, &dev->mode_config.encoder_list) |
| encoder_count++; |
| } else { |
| |
| crtc_count = mode_group->num_crtcs; |
| connector_count = mode_group->num_connectors; |
| encoder_count = mode_group->num_encoders; |
| } |
| |
| card_res->max_height = dev->mode_config.max_height; |
| card_res->min_height = dev->mode_config.min_height; |
| card_res->max_width = dev->mode_config.max_width; |
| card_res->min_width = dev->mode_config.min_width; |
| |
| /* handle this in 4 parts */ |
| /* FBs */ |
| if (card_res->count_fbs >= fb_count) { |
| copied = 0; |
| fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; |
| list_for_each_entry(fb, &file_priv->fbs, head) { |
| if (put_user(fb->base.id, fb_id + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } |
| card_res->count_fbs = fb_count; |
| |
| /* CRTCs */ |
| if (card_res->count_crtcs >= crtc_count) { |
| copied = 0; |
| crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; |
| if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
| list_for_each_entry(crtc, &dev->mode_config.crtc_list, |
| head) { |
| DRM_DEBUG_KMS("CRTC ID is %d\n", crtc->base.id); |
| if (put_user(crtc->base.id, crtc_id + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } else { |
| for (i = 0; i < mode_group->num_crtcs; i++) { |
| if (put_user(mode_group->id_list[i], |
| crtc_id + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } |
| } |
| card_res->count_crtcs = crtc_count; |
| |
| /* Encoders */ |
| if (card_res->count_encoders >= encoder_count) { |
| copied = 0; |
| encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; |
| if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
| list_for_each_entry(encoder, |
| &dev->mode_config.encoder_list, |
| head) { |
| DRM_DEBUG_KMS("ENCODER ID is %d\n", |
| encoder->base.id); |
| if (put_user(encoder->base.id, encoder_id + |
| copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } else { |
| for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { |
| if (put_user(mode_group->id_list[i], |
| encoder_id + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| |
| } |
| } |
| card_res->count_encoders = encoder_count; |
| |
| /* Connectors */ |
| if (card_res->count_connectors >= connector_count) { |
| copied = 0; |
| connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; |
| if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { |
| list_for_each_entry(connector, |
| &dev->mode_config.connector_list, |
| head) { |
| DRM_DEBUG_KMS("CONNECTOR ID is %d\n", |
| connector->base.id); |
| if (put_user(connector->base.id, |
| connector_id + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } else { |
| int start = mode_group->num_crtcs + |
| mode_group->num_encoders; |
| for (i = start; i < start + mode_group->num_connectors; i++) { |
| if (put_user(mode_group->id_list[i], |
| connector_id + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } |
| } |
| card_res->count_connectors = connector_count; |
| |
| DRM_DEBUG_KMS("Counted %d %d %d\n", card_res->count_crtcs, |
| card_res->count_connectors, card_res->count_encoders); |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_mode_getcrtc - get CRTC configuration |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Caller? (FIXME) |
| * |
| * Construct a CRTC configuration structure to return to the user. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_getcrtc(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_crtc *crtc_resp = data; |
| struct drm_crtc *crtc; |
| struct drm_mode_object *obj; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| obj = drm_mode_object_find(dev, crtc_resp->crtc_id, |
| DRM_MODE_OBJECT_CRTC); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| crtc = obj_to_crtc(obj); |
| |
| crtc_resp->x = crtc->x; |
| crtc_resp->y = crtc->y; |
| crtc_resp->gamma_size = crtc->gamma_size; |
| if (crtc->fb) |
| crtc_resp->fb_id = crtc->fb->base.id; |
| else |
| crtc_resp->fb_id = 0; |
| |
| if (crtc->enabled) { |
| |
| drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); |
| crtc_resp->mode_valid = 1; |
| |
| } else { |
| crtc_resp->mode_valid = 0; |
| } |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_mode_getconnector - get connector configuration |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Caller? (FIXME) |
| * |
| * Construct a connector configuration structure to return to the user. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_getconnector(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_mode_get_connector *out_resp = data; |
| struct drm_mode_object *obj; |
| struct drm_connector *connector; |
| struct drm_display_mode *mode; |
| int mode_count = 0; |
| int props_count = 0; |
| int encoders_count = 0; |
| int ret = 0; |
| int copied = 0; |
| int i; |
| struct drm_mode_modeinfo u_mode; |
| struct drm_mode_modeinfo __user *mode_ptr; |
| uint32_t __user *prop_ptr; |
| uint64_t __user *prop_values; |
| uint32_t __user *encoder_ptr; |
| |
| memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); |
| |
| DRM_DEBUG_KMS("connector id %d:\n", out_resp->connector_id); |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| obj = drm_mode_object_find(dev, out_resp->connector_id, |
| DRM_MODE_OBJECT_CONNECTOR); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| connector = obj_to_connector(obj); |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
| if (connector->property_ids[i] != 0) { |
| props_count++; |
| } |
| } |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
| if (connector->encoder_ids[i] != 0) { |
| encoders_count++; |
| } |
| } |
| |
| if (out_resp->count_modes == 0) { |
| connector->funcs->fill_modes(connector, |
| dev->mode_config.max_width, |
| dev->mode_config.max_height); |
| } |
| |
| /* delayed so we get modes regardless of pre-fill_modes state */ |
| list_for_each_entry(mode, &connector->modes, head) |
| mode_count++; |
| |
| out_resp->connector_id = connector->base.id; |
| out_resp->connector_type = connector->connector_type; |
| out_resp->connector_type_id = connector->connector_type_id; |
| out_resp->mm_width = connector->display_info.width_mm; |
| out_resp->mm_height = connector->display_info.height_mm; |
| out_resp->subpixel = connector->display_info.subpixel_order; |
| out_resp->connection = connector->status; |
| if (connector->encoder) |
| out_resp->encoder_id = connector->encoder->base.id; |
| else |
| out_resp->encoder_id = 0; |
| |
| /* |
| * This ioctl is called twice, once to determine how much space is |
| * needed, and the 2nd time to fill it. |
| */ |
| if ((out_resp->count_modes >= mode_count) && mode_count) { |
| copied = 0; |
| mode_ptr = (struct drm_mode_modeinfo *)(unsigned long)out_resp->modes_ptr; |
| list_for_each_entry(mode, &connector->modes, head) { |
| drm_crtc_convert_to_umode(&u_mode, mode); |
| if (copy_to_user(mode_ptr + copied, |
| &u_mode, sizeof(u_mode))) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } |
| out_resp->count_modes = mode_count; |
| |
| if ((out_resp->count_props >= props_count) && props_count) { |
| copied = 0; |
| prop_ptr = (uint32_t *)(unsigned long)(out_resp->props_ptr); |
| prop_values = (uint64_t *)(unsigned long)(out_resp->prop_values_ptr); |
| for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
| if (connector->property_ids[i] != 0) { |
| if (put_user(connector->property_ids[i], |
| prop_ptr + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| if (put_user(connector->property_values[i], |
| prop_values + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } |
| } |
| out_resp->count_props = props_count; |
| |
| if ((out_resp->count_encoders >= encoders_count) && encoders_count) { |
| copied = 0; |
| encoder_ptr = (uint32_t *)(unsigned long)(out_resp->encoders_ptr); |
| for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
| if (connector->encoder_ids[i] != 0) { |
| if (put_user(connector->encoder_ids[i], |
| encoder_ptr + copied)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| copied++; |
| } |
| } |
| } |
| out_resp->count_encoders = encoders_count; |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| int drm_mode_getencoder(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_mode_get_encoder *enc_resp = data; |
| struct drm_mode_object *obj; |
| struct drm_encoder *encoder; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, enc_resp->encoder_id, |
| DRM_MODE_OBJECT_ENCODER); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| encoder = obj_to_encoder(obj); |
| |
| if (encoder->crtc) |
| enc_resp->crtc_id = encoder->crtc->base.id; |
| else |
| enc_resp->crtc_id = 0; |
| enc_resp->encoder_type = encoder->encoder_type; |
| enc_resp->encoder_id = encoder->base.id; |
| enc_resp->possible_crtcs = encoder->possible_crtcs; |
| enc_resp->possible_clones = encoder->possible_clones; |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_mode_setcrtc - set CRTC configuration |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Caller? (FIXME) |
| * |
| * Build a new CRTC configuration based on user request. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_setcrtc(struct drm_device *dev, void *data, |
| struct drm_file *file_priv) |
| { |
| struct drm_mode_config *config = &dev->mode_config; |
| struct drm_mode_crtc *crtc_req = data; |
| struct drm_mode_object *obj; |
| struct drm_crtc *crtc, *crtcfb; |
| struct drm_connector **connector_set = NULL, *connector; |
| struct drm_framebuffer *fb = NULL; |
| struct drm_display_mode *mode = NULL; |
| struct drm_mode_set set; |
| uint32_t __user *set_connectors_ptr; |
| int ret = 0; |
| int i; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, crtc_req->crtc_id, |
| DRM_MODE_OBJECT_CRTC); |
| if (!obj) { |
| DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); |
| ret = -EINVAL; |
| goto out; |
| } |
| crtc = obj_to_crtc(obj); |
| |
| if (crtc_req->mode_valid) { |
| /* If we have a mode we need a framebuffer. */ |
| /* If we pass -1, set the mode with the currently bound fb */ |
| if (crtc_req->fb_id == -1) { |
| list_for_each_entry(crtcfb, |
| &dev->mode_config.crtc_list, head) { |
| if (crtcfb == crtc) { |
| DRM_DEBUG_KMS("Using current fb for " |
| "setmode\n"); |
| fb = crtc->fb; |
| } |
| } |
| } else { |
| obj = drm_mode_object_find(dev, crtc_req->fb_id, |
| DRM_MODE_OBJECT_FB); |
| if (!obj) { |
| DRM_DEBUG_KMS("Unknown FB ID%d\n", |
| crtc_req->fb_id); |
| ret = -EINVAL; |
| goto out; |
| } |
| fb = obj_to_fb(obj); |
| } |
| |
| mode = drm_mode_create(dev); |
| drm_crtc_convert_umode(mode, &crtc_req->mode); |
| drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); |
| } |
| |
| if (crtc_req->count_connectors == 0 && mode) { |
| DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| if (crtc_req->count_connectors > 0 && !mode && !fb) { |
| DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", |
| crtc_req->count_connectors); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| if (crtc_req->count_connectors > 0) { |
| u32 out_id; |
| |
| /* Avoid unbounded kernel memory allocation */ |
| if (crtc_req->count_connectors > config->num_connector) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| connector_set = kmalloc(crtc_req->count_connectors * |
| sizeof(struct drm_connector *), |
| GFP_KERNEL); |
| if (!connector_set) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| for (i = 0; i < crtc_req->count_connectors; i++) { |
| set_connectors_ptr = (uint32_t *)(unsigned long)crtc_req->set_connectors_ptr; |
| if (get_user(out_id, &set_connectors_ptr[i])) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| obj = drm_mode_object_find(dev, out_id, |
| DRM_MODE_OBJECT_CONNECTOR); |
| if (!obj) { |
| DRM_DEBUG_KMS("Connector id %d unknown\n", |
| out_id); |
| ret = -EINVAL; |
| goto out; |
| } |
| connector = obj_to_connector(obj); |
| |
| connector_set[i] = connector; |
| } |
| } |
| |
| set.crtc = crtc; |
| set.x = crtc_req->x; |
| set.y = crtc_req->y; |
| set.mode = mode; |
| set.connectors = connector_set; |
| set.num_connectors = crtc_req->count_connectors; |
| set.fb =fb; |
| ret = crtc->funcs->set_config(&set); |
| |
| out: |
| kfree(connector_set); |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| int drm_mode_cursor_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_cursor *req = data; |
| struct drm_mode_object *obj; |
| struct drm_crtc *crtc; |
| int ret = 0; |
| |
| DRM_DEBUG_KMS("\n"); |
| |
| if (!req->flags) { |
| DRM_ERROR("no operation set\n"); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); |
| if (!obj) { |
| DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); |
| ret = -EINVAL; |
| goto out; |
| } |
| crtc = obj_to_crtc(obj); |
| |
| if (req->flags & DRM_MODE_CURSOR_BO) { |
| if (!crtc->funcs->cursor_set) { |
| DRM_ERROR("crtc does not support cursor\n"); |
| ret = -ENXIO; |
| goto out; |
| } |
| /* Turns off the cursor if handle is 0 */ |
| ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, |
| req->width, req->height); |
| } |
| |
| if (req->flags & DRM_MODE_CURSOR_MOVE) { |
| if (crtc->funcs->cursor_move) { |
| ret = crtc->funcs->cursor_move(crtc, req->x, req->y); |
| } else { |
| DRM_ERROR("crtc does not support cursor\n"); |
| ret = -EFAULT; |
| goto out; |
| } |
| } |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_mode_addfb - add an FB to the graphics configuration |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Takes mode config lock. |
| * |
| * Add a new FB to the specified CRTC, given a user request. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_addfb(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_fb_cmd *r = data; |
| struct drm_mode_config *config = &dev->mode_config; |
| struct drm_framebuffer *fb; |
| int ret = 0; |
| |
| if ((config->min_width > r->width) || (r->width > config->max_width)) { |
| DRM_ERROR("mode new framebuffer width not within limits\n"); |
| return -EINVAL; |
| } |
| if ((config->min_height > r->height) || (r->height > config->max_height)) { |
| DRM_ERROR("mode new framebuffer height not within limits\n"); |
| return -EINVAL; |
| } |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| /* TODO check buffer is sufficently large */ |
| /* TODO setup destructor callback */ |
| |
| fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); |
| if (!fb) { |
| DRM_ERROR("could not create framebuffer\n"); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| r->fb_id = fb->base.id; |
| list_add(&fb->filp_head, &file_priv->fbs); |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_mode_rmfb - remove an FB from the configuration |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Takes mode config lock. |
| * |
| * Remove the FB specified by the user. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_rmfb(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_object *obj; |
| struct drm_framebuffer *fb = NULL; |
| struct drm_framebuffer *fbl = NULL; |
| uint32_t *id = data; |
| int ret = 0; |
| int found = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); |
| /* TODO check that we realy get a framebuffer back. */ |
| if (!obj) { |
| DRM_ERROR("mode invalid framebuffer id\n"); |
| ret = -EINVAL; |
| goto out; |
| } |
| fb = obj_to_fb(obj); |
| |
| list_for_each_entry(fbl, &file_priv->fbs, filp_head) |
| if (fb == fbl) |
| found = 1; |
| |
| if (!found) { |
| DRM_ERROR("tried to remove a fb that we didn't own\n"); |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| /* TODO release all crtc connected to the framebuffer */ |
| /* TODO unhock the destructor from the buffer object */ |
| |
| list_del(&fb->filp_head); |
| fb->funcs->destroy(fb); |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_mode_getfb - get FB info |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * LOCKING: |
| * Caller? (FIXME) |
| * |
| * Lookup the FB given its ID and return info about it. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_getfb(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_fb_cmd *r = data; |
| struct drm_mode_object *obj; |
| struct drm_framebuffer *fb; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); |
| if (!obj) { |
| DRM_ERROR("invalid framebuffer id\n"); |
| ret = -EINVAL; |
| goto out; |
| } |
| fb = obj_to_fb(obj); |
| |
| r->height = fb->height; |
| r->width = fb->width; |
| r->depth = fb->depth; |
| r->bpp = fb->bits_per_pixel; |
| r->pitch = fb->pitch; |
| fb->funcs->create_handle(fb, file_priv, &r->handle); |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| /** |
| * drm_fb_release - remove and free the FBs on this file |
| * @filp: file * from the ioctl |
| * |
| * LOCKING: |
| * Takes mode config lock. |
| * |
| * Destroy all the FBs associated with @filp. |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| void drm_fb_release(struct drm_file *priv) |
| { |
| struct drm_device *dev = priv->minor->dev; |
| struct drm_framebuffer *fb, *tfb; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { |
| list_del(&fb->filp_head); |
| fb->funcs->destroy(fb); |
| } |
| mutex_unlock(&dev->mode_config.mutex); |
| } |
| |
| /** |
| * drm_mode_attachmode - add a mode to the user mode list |
| * @dev: DRM device |
| * @connector: connector to add the mode to |
| * @mode: mode to add |
| * |
| * Add @mode to @connector's user mode list. |
| */ |
| static int drm_mode_attachmode(struct drm_device *dev, |
| struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| int ret = 0; |
| |
| list_add_tail(&mode->head, &connector->user_modes); |
| return ret; |
| } |
| |
| int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, |
| struct drm_display_mode *mode) |
| { |
| struct drm_connector *connector; |
| int ret = 0; |
| struct drm_display_mode *dup_mode; |
| int need_dup = 0; |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| if (!connector->encoder) |
| break; |
| if (connector->encoder->crtc == crtc) { |
| if (need_dup) |
| dup_mode = drm_mode_duplicate(dev, mode); |
| else |
| dup_mode = mode; |
| ret = drm_mode_attachmode(dev, connector, dup_mode); |
| if (ret) |
| return ret; |
| need_dup = 1; |
| } |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_mode_attachmode_crtc); |
| |
| static int drm_mode_detachmode(struct drm_device *dev, |
| struct drm_connector *connector, |
| struct drm_display_mode *mode) |
| { |
| int found = 0; |
| int ret = 0; |
| struct drm_display_mode *match_mode, *t; |
| |
| list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { |
| if (drm_mode_equal(match_mode, mode)) { |
| list_del(&match_mode->head); |
| drm_mode_destroy(dev, match_mode); |
| found = 1; |
| break; |
| } |
| } |
| |
| if (!found) |
| ret = -EINVAL; |
| |
| return ret; |
| } |
| |
| int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) |
| { |
| struct drm_connector *connector; |
| |
| list_for_each_entry(connector, &dev->mode_config.connector_list, head) { |
| drm_mode_detachmode(dev, connector, mode); |
| } |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_mode_detachmode_crtc); |
| |
| /** |
| * drm_fb_attachmode - Attach a user mode to an connector |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * This attaches a user specified mode to an connector. |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_attachmode_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_mode_cmd *mode_cmd = data; |
| struct drm_connector *connector; |
| struct drm_display_mode *mode; |
| struct drm_mode_object *obj; |
| struct drm_mode_modeinfo *umode = &mode_cmd->mode; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| connector = obj_to_connector(obj); |
| |
| mode = drm_mode_create(dev); |
| if (!mode) { |
| ret = -ENOMEM; |
| goto out; |
| } |
| |
| drm_crtc_convert_umode(mode, umode); |
| |
| ret = drm_mode_attachmode(dev, connector, mode); |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| |
| /** |
| * drm_fb_detachmode - Detach a user specified mode from an connector |
| * @inode: inode from the ioctl |
| * @filp: file * from the ioctl |
| * @cmd: cmd from ioctl |
| * @arg: arg from ioctl |
| * |
| * Called by the user via ioctl. |
| * |
| * RETURNS: |
| * Zero on success, errno on failure. |
| */ |
| int drm_mode_detachmode_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_object *obj; |
| struct drm_mode_mode_cmd *mode_cmd = data; |
| struct drm_connector *connector; |
| struct drm_display_mode mode; |
| struct drm_mode_modeinfo *umode = &mode_cmd->mode; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| connector = obj_to_connector(obj); |
| |
| drm_crtc_convert_umode(&mode, umode); |
| ret = drm_mode_detachmode(dev, connector, &mode); |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| struct drm_property *drm_property_create(struct drm_device *dev, int flags, |
| const char *name, int num_values) |
| { |
| struct drm_property *property = NULL; |
| |
| property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); |
| if (!property) |
| return NULL; |
| |
| if (num_values) { |
| property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); |
| if (!property->values) |
| goto fail; |
| } |
| |
| drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); |
| property->flags = flags; |
| property->num_values = num_values; |
| INIT_LIST_HEAD(&property->enum_blob_list); |
| |
| if (name) |
| strncpy(property->name, name, DRM_PROP_NAME_LEN); |
| |
| list_add_tail(&property->head, &dev->mode_config.property_list); |
| return property; |
| fail: |
| kfree(property); |
| return NULL; |
| } |
| EXPORT_SYMBOL(drm_property_create); |
| |
| int drm_property_add_enum(struct drm_property *property, int index, |
| uint64_t value, const char *name) |
| { |
| struct drm_property_enum *prop_enum; |
| |
| if (!(property->flags & DRM_MODE_PROP_ENUM)) |
| return -EINVAL; |
| |
| if (!list_empty(&property->enum_blob_list)) { |
| list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
| if (prop_enum->value == value) { |
| strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
| prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
| return 0; |
| } |
| } |
| } |
| |
| prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); |
| if (!prop_enum) |
| return -ENOMEM; |
| |
| strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); |
| prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; |
| prop_enum->value = value; |
| |
| property->values[index] = value; |
| list_add_tail(&prop_enum->head, &property->enum_blob_list); |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_property_add_enum); |
| |
| void drm_property_destroy(struct drm_device *dev, struct drm_property *property) |
| { |
| struct drm_property_enum *prop_enum, *pt; |
| |
| list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { |
| list_del(&prop_enum->head); |
| kfree(prop_enum); |
| } |
| |
| if (property->num_values) |
| kfree(property->values); |
| drm_mode_object_put(dev, &property->base); |
| list_del(&property->head); |
| kfree(property); |
| } |
| EXPORT_SYMBOL(drm_property_destroy); |
| |
| int drm_connector_attach_property(struct drm_connector *connector, |
| struct drm_property *property, uint64_t init_val) |
| { |
| int i; |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
| if (connector->property_ids[i] == 0) { |
| connector->property_ids[i] = property->base.id; |
| connector->property_values[i] = init_val; |
| break; |
| } |
| } |
| |
| if (i == DRM_CONNECTOR_MAX_PROPERTY) |
| return -EINVAL; |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_connector_attach_property); |
| |
| int drm_connector_property_set_value(struct drm_connector *connector, |
| struct drm_property *property, uint64_t value) |
| { |
| int i; |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
| if (connector->property_ids[i] == property->base.id) { |
| connector->property_values[i] = value; |
| break; |
| } |
| } |
| |
| if (i == DRM_CONNECTOR_MAX_PROPERTY) |
| return -EINVAL; |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_connector_property_set_value); |
| |
| int drm_connector_property_get_value(struct drm_connector *connector, |
| struct drm_property *property, uint64_t *val) |
| { |
| int i; |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
| if (connector->property_ids[i] == property->base.id) { |
| *val = connector->property_values[i]; |
| break; |
| } |
| } |
| |
| if (i == DRM_CONNECTOR_MAX_PROPERTY) |
| return -EINVAL; |
| return 0; |
| } |
| EXPORT_SYMBOL(drm_connector_property_get_value); |
| |
| int drm_mode_getproperty_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_object *obj; |
| struct drm_mode_get_property *out_resp = data; |
| struct drm_property *property; |
| int enum_count = 0; |
| int blob_count = 0; |
| int value_count = 0; |
| int ret = 0, i; |
| int copied; |
| struct drm_property_enum *prop_enum; |
| struct drm_mode_property_enum __user *enum_ptr; |
| struct drm_property_blob *prop_blob; |
| uint32_t *blob_id_ptr; |
| uint64_t __user *values_ptr; |
| uint32_t __user *blob_length_ptr; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
| if (!obj) { |
| ret = -EINVAL; |
| goto done; |
| } |
| property = obj_to_property(obj); |
| |
| if (property->flags & DRM_MODE_PROP_ENUM) { |
| list_for_each_entry(prop_enum, &property->enum_blob_list, head) |
| enum_count++; |
| } else if (property->flags & DRM_MODE_PROP_BLOB) { |
| list_for_each_entry(prop_blob, &property->enum_blob_list, head) |
| blob_count++; |
| } |
| |
| value_count = property->num_values; |
| |
| strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); |
| out_resp->name[DRM_PROP_NAME_LEN-1] = 0; |
| out_resp->flags = property->flags; |
| |
| if ((out_resp->count_values >= value_count) && value_count) { |
| values_ptr = (uint64_t *)(unsigned long)out_resp->values_ptr; |
| for (i = 0; i < value_count; i++) { |
| if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { |
| ret = -EFAULT; |
| goto done; |
| } |
| } |
| } |
| out_resp->count_values = value_count; |
| |
| if (property->flags & DRM_MODE_PROP_ENUM) { |
| if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { |
| copied = 0; |
| enum_ptr = (struct drm_mode_property_enum *)(unsigned long)out_resp->enum_blob_ptr; |
| list_for_each_entry(prop_enum, &property->enum_blob_list, head) { |
| |
| if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { |
| ret = -EFAULT; |
| goto done; |
| } |
| |
| if (copy_to_user(&enum_ptr[copied].name, |
| &prop_enum->name, DRM_PROP_NAME_LEN)) { |
| ret = -EFAULT; |
| goto done; |
| } |
| copied++; |
| } |
| } |
| out_resp->count_enum_blobs = enum_count; |
| } |
| |
| if (property->flags & DRM_MODE_PROP_BLOB) { |
| if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { |
| copied = 0; |
| blob_id_ptr = (uint32_t *)(unsigned long)out_resp->enum_blob_ptr; |
| blob_length_ptr = (uint32_t *)(unsigned long)out_resp->values_ptr; |
| |
| list_for_each_entry(prop_blob, &property->enum_blob_list, head) { |
| if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { |
| ret = -EFAULT; |
| goto done; |
| } |
| |
| if (put_user(prop_blob->length, blob_length_ptr + copied)) { |
| ret = -EFAULT; |
| goto done; |
| } |
| |
| copied++; |
| } |
| } |
| out_resp->count_enum_blobs = blob_count; |
| } |
| done: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, |
| void *data) |
| { |
| struct drm_property_blob *blob; |
| |
| if (!length || !data) |
| return NULL; |
| |
| blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); |
| if (!blob) |
| return NULL; |
| |
| blob->data = (void *)((char *)blob + sizeof(struct drm_property_blob)); |
| blob->length = length; |
| |
| memcpy(blob->data, data, length); |
| |
| drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); |
| |
| list_add_tail(&blob->head, &dev->mode_config.property_blob_list); |
| return blob; |
| } |
| |
| static void drm_property_destroy_blob(struct drm_device *dev, |
| struct drm_property_blob *blob) |
| { |
| drm_mode_object_put(dev, &blob->base); |
| list_del(&blob->head); |
| kfree(blob); |
| } |
| |
| int drm_mode_getblob_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_object *obj; |
| struct drm_mode_get_blob *out_resp = data; |
| struct drm_property_blob *blob; |
| int ret = 0; |
| void *blob_ptr; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); |
| if (!obj) { |
| ret = -EINVAL; |
| goto done; |
| } |
| blob = obj_to_blob(obj); |
| |
| if (out_resp->length == blob->length) { |
| blob_ptr = (void *)(unsigned long)out_resp->data; |
| if (copy_to_user(blob_ptr, blob->data, blob->length)){ |
| ret = -EFAULT; |
| goto done; |
| } |
| } |
| out_resp->length = blob->length; |
| |
| done: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| int drm_mode_connector_update_edid_property(struct drm_connector *connector, |
| struct edid *edid) |
| { |
| struct drm_device *dev = connector->dev; |
| int ret = 0; |
| |
| if (connector->edid_blob_ptr) |
| drm_property_destroy_blob(dev, connector->edid_blob_ptr); |
| |
| /* Delete edid, when there is none. */ |
| if (!edid) { |
| connector->edid_blob_ptr = NULL; |
| ret = drm_connector_property_set_value(connector, dev->mode_config.edid_property, 0); |
| return ret; |
| } |
| |
| connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 128, edid); |
| |
| ret = drm_connector_property_set_value(connector, |
| dev->mode_config.edid_property, |
| connector->edid_blob_ptr->base.id); |
| |
| return ret; |
| } |
| EXPORT_SYMBOL(drm_mode_connector_update_edid_property); |
| |
| int drm_mode_connector_property_set_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_connector_set_property *out_resp = data; |
| struct drm_mode_object *obj; |
| struct drm_property *property; |
| struct drm_connector *connector; |
| int ret = -EINVAL; |
| int i; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| |
| obj = drm_mode_object_find(dev, out_resp->connector_id, DRM_MODE_OBJECT_CONNECTOR); |
| if (!obj) { |
| goto out; |
| } |
| connector = obj_to_connector(obj); |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_PROPERTY; i++) { |
| if (connector->property_ids[i] == out_resp->prop_id) |
| break; |
| } |
| |
| if (i == DRM_CONNECTOR_MAX_PROPERTY) { |
| goto out; |
| } |
| |
| obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); |
| if (!obj) { |
| goto out; |
| } |
| property = obj_to_property(obj); |
| |
| if (property->flags & DRM_MODE_PROP_IMMUTABLE) |
| goto out; |
| |
| if (property->flags & DRM_MODE_PROP_RANGE) { |
| if (out_resp->value < property->values[0]) |
| goto out; |
| |
| if (out_resp->value > property->values[1]) |
| goto out; |
| } else { |
| int found = 0; |
| for (i = 0; i < property->num_values; i++) { |
| if (property->values[i] == out_resp->value) { |
| found = 1; |
| break; |
| } |
| } |
| if (!found) { |
| goto out; |
| } |
| } |
| |
| /* Do DPMS ourselves */ |
| if (property == connector->dev->mode_config.dpms_property) { |
| if (connector->funcs->dpms) |
| (*connector->funcs->dpms)(connector, (int) out_resp->value); |
| ret = 0; |
| } else if (connector->funcs->set_property) |
| ret = connector->funcs->set_property(connector, property, out_resp->value); |
| |
| /* store the property value if succesful */ |
| if (!ret) |
| drm_connector_property_set_value(connector, property, out_resp->value); |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |
| |
| int drm_mode_connector_attach_encoder(struct drm_connector *connector, |
| struct drm_encoder *encoder) |
| { |
| int i; |
| |
| for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
| if (connector->encoder_ids[i] == 0) { |
| connector->encoder_ids[i] = encoder->base.id; |
| return 0; |
| } |
| } |
| return -ENOMEM; |
| } |
| EXPORT_SYMBOL(drm_mode_connector_attach_encoder); |
| |
| void drm_mode_connector_detach_encoder(struct drm_connector *connector, |
| struct drm_encoder *encoder) |
| { |
| int i; |
| for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { |
| if (connector->encoder_ids[i] == encoder->base.id) { |
| connector->encoder_ids[i] = 0; |
| if (connector->encoder == encoder) |
| connector->encoder = NULL; |
| break; |
| } |
| } |
| } |
| EXPORT_SYMBOL(drm_mode_connector_detach_encoder); |
| |
| bool drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, |
| int gamma_size) |
| { |
| crtc->gamma_size = gamma_size; |
| |
| crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); |
| if (!crtc->gamma_store) { |
| crtc->gamma_size = 0; |
| return false; |
| } |
| |
| return true; |
| } |
| EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); |
| |
| int drm_mode_gamma_set_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_crtc_lut *crtc_lut = data; |
| struct drm_mode_object *obj; |
| struct drm_crtc *crtc; |
| void *r_base, *g_base, *b_base; |
| int size; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| crtc = obj_to_crtc(obj); |
| |
| /* memcpy into gamma store */ |
| if (crtc_lut->gamma_size != crtc->gamma_size) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
| r_base = crtc->gamma_store; |
| if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| g_base = r_base + size; |
| if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| b_base = g_base + size; |
| if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, crtc->gamma_size); |
| |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| |
| } |
| |
| int drm_mode_gamma_get_ioctl(struct drm_device *dev, |
| void *data, struct drm_file *file_priv) |
| { |
| struct drm_mode_crtc_lut *crtc_lut = data; |
| struct drm_mode_object *obj; |
| struct drm_crtc *crtc; |
| void *r_base, *g_base, *b_base; |
| int size; |
| int ret = 0; |
| |
| mutex_lock(&dev->mode_config.mutex); |
| obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); |
| if (!obj) { |
| ret = -EINVAL; |
| goto out; |
| } |
| crtc = obj_to_crtc(obj); |
| |
| /* memcpy into gamma store */ |
| if (crtc_lut->gamma_size != crtc->gamma_size) { |
| ret = -EINVAL; |
| goto out; |
| } |
| |
| size = crtc_lut->gamma_size * (sizeof(uint16_t)); |
| r_base = crtc->gamma_store; |
| if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| g_base = r_base + size; |
| if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| |
| b_base = g_base + size; |
| if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { |
| ret = -EFAULT; |
| goto out; |
| } |
| out: |
| mutex_unlock(&dev->mode_config.mutex); |
| return ret; |
| } |