/* * 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_NONE, "None" }, { DRM_MODE_SCALE_FULLSCREEN, "Full" }, { DRM_MODE_SCALE_CENTER, "Center" }, { DRM_MODE_SCALE_ASPECT, "Full 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; } EXPORT_SYMBOL(drm_get_encoder_name); 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_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; struct drm_mode_set set; int ret; /* remove from any CRTC */ list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { if (crtc->fb == fb) { /* should turn off the crtc */ memset(&set, 0, sizeof(struct drm_mode_set)); set.crtc = crtc; set.fb = NULL; ret = crtc->funcs->set_config(&set); if (ret) DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); } } 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); kfree(connector->fb_helper_private); 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; 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; }