diff options
Diffstat (limited to 'linux-core/drm_crtc.c')
| -rw-r--r-- | linux-core/drm_crtc.c | 2383 |
1 files changed, 0 insertions, 2383 deletions
diff --git a/linux-core/drm_crtc.c b/linux-core/drm_crtc.c deleted file mode 100644 index aa0c4a95..00000000 --- a/linux-core/drm_crtc.c +++ /dev/null @@ -1,2383 +0,0 @@ -/* - * Copyright (c) 2006-2007 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; -}; - -/* - * 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" } -}; - -char *drm_get_dpms_name(int val) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(drm_dpms_enum_list); i++) - if (drm_dpms_enum_list[i].type == val) - return drm_dpms_enum_list[i].name; - - return "unknown"; -} - -/* - * 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_select_subconnector_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_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ - { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ - { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ -}; - -char *drm_get_select_subconnector_name(int val) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(drm_select_subconnector_enum_list); i++) - if (drm_select_subconnector_enum_list[i].type == val) - return drm_select_subconnector_enum_list[i].name; - - return "unknown"; -} - -static struct drm_prop_enum_list drm_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_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ - { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ - { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ -}; - -char *drm_get_subconnector_name(int val) -{ - int i; - - for (i = 0; i < ARRAY_SIZE(drm_subconnector_enum_list); i++) - if (drm_subconnector_enum_list[i].type == val) - return drm_subconnector_enum_list[i].name; - - return "unknown"; -} - -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 }, -}; - -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_idr_get - allocate a new identifier - * @dev: DRM device - * @ptr: object pointer, used to generate unique ID - * - * LOCKING: - * Caller must hold DRM mode_config lock. - * - * 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; - } - - ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); - 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) -{ - idr_remove(&dev->mode_config.crtc_idr, object->id); -} - -void *drm_mode_object_find(struct drm_device *dev, uint32_t id, uint32_t type) -{ - struct drm_mode_object *obj; - - obj = idr_find(&dev->mode_config.crtc_idr, id); - if (!obj || (obj->type != type) || (obj->id != id)) - return NULL; - - 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_create - create a new framebuffer object - * @dev: DRM device - * - * LOCKING: - * Caller must hold mode config lock. - * - * Creates a new framebuffer objects and adds it to @dev's DRM mode_config. - * - * RETURNS: - * Pointer to new framebuffer or NULL on error. - */ -struct drm_framebuffer *drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, - const struct drm_framebuffer_funcs *funcs) -{ - if(drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB)) - return NULL; - - fb->dev = dev; - fb->funcs = funcs; - dev->mode_config.num_fb++; - list_add(&fb->head, &dev->mode_config.fb_list); - - return fb; -} -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; - - 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++; -} -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 the specified 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) -{ - 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; - /* randr_connector? */ - /* connector_set_monitor(connector)? */ - /* check for connector_ignored(connector)? */ - - mutex_lock(&dev->mode_config.mutex); - 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) -{ - encoder->dev = dev; - - drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); - encoder->encoder_type = encoder_type; - encoder->funcs = funcs; - - mutex_lock(&dev->mode_config.mutex); - 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: - * None. - * - * 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) -{ - int i; - - /* - * Standard properties (apply to all connectors) - */ - dev->mode_config.edid_property = - drm_property_create(dev, DRM_MODE_PROP_BLOB | DRM_MODE_PROP_IMMUTABLE, - "EDID", 0); - - dev->mode_config.dpms_property = - 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(dev->mode_config.dpms_property, i, drm_dpms_enum_list[i].type, drm_dpms_enum_list[i].name); - - 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) -{ - int i; - - if (dev->mode_config.dvi_i_select_subconnector_property) - return 0; - - dev->mode_config.dvi_i_select_subconnector_property = drm_property_create(dev, DRM_MODE_PROP_ENUM, - "select subconnector", 3); - /* add enum element 0-2 */ - for (i = 0; i < 3; i++) - drm_property_add_enum(dev->mode_config.dvi_i_select_subconnector_property, i, drm_select_subconnector_enum_list[i].type, - drm_select_subconnector_enum_list[i].name); - - /* This is a property which indicates the most likely thing to be connected. */ - dev->mode_config.dvi_i_subconnector_property = drm_property_create(dev, DRM_MODE_PROP_ENUM | DRM_MODE_PROP_IMMUTABLE, - "subconnector", 3); - /* add enum element 0-2 */ - for (i = 0; i < 3; i++) - drm_property_add_enum(dev->mode_config.dvi_i_subconnector_property, i, drm_subconnector_enum_list[i].type, - drm_subconnector_enum_list[i].name); - - 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[]) -{ - int i; - - if (dev->mode_config.tv_select_subconnector_property) /* already done */ - return 0; - - dev->mode_config.tv_select_subconnector_property = drm_property_create(dev, DRM_MODE_PROP_ENUM, - "select subconnector", 4); - /* add enum element 0 */ - drm_property_add_enum(dev->mode_config.tv_select_subconnector_property, 0, drm_select_subconnector_enum_list[0].type, - drm_select_subconnector_enum_list[0].name); - /* add enum element 3-5 */ - for (i = 1; i < 4; i++) - drm_property_add_enum(dev->mode_config.tv_select_subconnector_property, i, drm_select_subconnector_enum_list[i + 2].type, - drm_select_subconnector_enum_list[i + 2].name); - - /* This is a property which indicates the most likely thing to be connected. */ - dev->mode_config.tv_subconnector_property = drm_property_create(dev, DRM_MODE_PROP_ENUM | DRM_MODE_PROP_IMMUTABLE, - "subconnector", 4); - /* add enum element 0 */ - drm_property_add_enum(dev->mode_config.tv_subconnector_property, 0, drm_subconnector_enum_list[0].type, - drm_subconnector_enum_list[0].name); - /* add enum element 3-5 */ - for (i = 1; i < 4; i++) - drm_property_add_enum(dev->mode_config.tv_subconnector_property, i, drm_subconnector_enum_list[i + 2].type, - drm_subconnector_enum_list[i + 2].name); - - 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]); - - 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) -{ - int i; - - if (dev->mode_config.scaling_mode_property) /* already done */ - return 0; - - dev->mode_config.scaling_mode_property = - 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(dev->mode_config.scaling_mode_property, i, drm_scaling_mode_enum_list[i].type, drm_scaling_mode_enum_list[i].name); - - 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) -{ - int i; - - if (dev->mode_config.dithering_mode_property) /* already done */ - return 0; - - dev->mode_config.dithering_mode_property = - 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(dev->mode_config.dithering_mode_property, i, drm_dithering_mode_enum_list[i].type, drm_dithering_mode_enum_list[i].name); - - 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); - 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); - - drm_mode_create_standard_connector_properties(dev); - - /* 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; - dev->mode_config.hotplug_counter = 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 drmo_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 *)(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 *)(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("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 *)(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("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 *)(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("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("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("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_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("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("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("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("Count connectors is 0 but mode set\n"); - ret = -EINVAL; - goto out; - } - - if (crtc_req->count_connectors > 0 && !mode && !fb) { - DRM_DEBUG("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; - /* Maybe we should check that count_connectors is a sensible value. */ - 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("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("\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("Unknown CRTC ID %d\n", req->crtc_id); - ret = -EINVAL; - goto out; - } - crtc = obj_to_crtc(obj); - - if (req->flags & DRM_MODE_CURSOR_BO) { - /* Turn of the cursor if handle is 0 */ - if (crtc->funcs->cursor_set) { - ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, req->width, req->height); - } else { - DRM_ERROR("crtc does not support cursor\n"); - ret = -EFAULT; - goto out; - } - } - - 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 file *filp) -{ - struct drm_file *priv = filp->private_data; - 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); -} - -/* - * - */ - -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; - } - } - - 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_replacefb(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 found = 0; - struct drm_framebuffer *fbl = NULL; - int ret = 0; - - /* right replace the current bo attached to this fb with a new bo */ - mutex_lock(&dev->mode_config.mutex); - obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); - if (!obj) { - 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 replace an fb we didn't own\n"); - ret = -EINVAL; - goto out; - } - - if (dev->mode_config.funcs->resize_fb) - ret = dev->mode_config.funcs->resize_fb(dev, file_priv, fb, r); - else - ret = -EINVAL; -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; -} |