drm_crtc.c revision 1.2.4.2
1 1.2.4.2 yamt /* 2 1.2.4.2 yamt * Copyright (c) 2006-2008 Intel Corporation 3 1.2.4.2 yamt * Copyright (c) 2007 Dave Airlie <airlied (at) linux.ie> 4 1.2.4.2 yamt * Copyright (c) 2008 Red Hat Inc. 5 1.2.4.2 yamt * 6 1.2.4.2 yamt * DRM core CRTC related functions 7 1.2.4.2 yamt * 8 1.2.4.2 yamt * Permission to use, copy, modify, distribute, and sell this software and its 9 1.2.4.2 yamt * documentation for any purpose is hereby granted without fee, provided that 10 1.2.4.2 yamt * the above copyright notice appear in all copies and that both that copyright 11 1.2.4.2 yamt * notice and this permission notice appear in supporting documentation, and 12 1.2.4.2 yamt * that the name of the copyright holders not be used in advertising or 13 1.2.4.2 yamt * publicity pertaining to distribution of the software without specific, 14 1.2.4.2 yamt * written prior permission. The copyright holders make no representations 15 1.2.4.2 yamt * about the suitability of this software for any purpose. It is provided "as 16 1.2.4.2 yamt * is" without express or implied warranty. 17 1.2.4.2 yamt * 18 1.2.4.2 yamt * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, 19 1.2.4.2 yamt * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO 20 1.2.4.2 yamt * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR 21 1.2.4.2 yamt * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, 22 1.2.4.2 yamt * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER 23 1.2.4.2 yamt * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 24 1.2.4.2 yamt * OF THIS SOFTWARE. 25 1.2.4.2 yamt * 26 1.2.4.2 yamt * Authors: 27 1.2.4.2 yamt * Keith Packard 28 1.2.4.2 yamt * Eric Anholt <eric (at) anholt.net> 29 1.2.4.2 yamt * Dave Airlie <airlied (at) linux.ie> 30 1.2.4.2 yamt * Jesse Barnes <jesse.barnes (at) intel.com> 31 1.2.4.2 yamt */ 32 1.2.4.2 yamt #include <linux/err.h> 33 1.2.4.2 yamt #include <linux/spinlock.h> 34 1.2.4.2 yamt #include <linux/list.h> 35 1.2.4.2 yamt #include <linux/slab.h> 36 1.2.4.2 yamt #include <linux/export.h> 37 1.2.4.2 yamt #include <asm/bug.h> 38 1.2.4.2 yamt #include <drm/drmP.h> 39 1.2.4.2 yamt #include <drm/drm_crtc.h> 40 1.2.4.2 yamt #include <drm/drm_edid.h> 41 1.2.4.2 yamt #include <drm/drm_fourcc.h> 42 1.2.4.2 yamt 43 1.2.4.2 yamt /* Avoid boilerplate. I'm tired of typing. */ 44 1.2.4.2 yamt #define DRM_ENUM_NAME_FN(fnname, list) \ 45 1.2.4.2 yamt const char *fnname(int val) \ 46 1.2.4.2 yamt { \ 47 1.2.4.2 yamt int i; \ 48 1.2.4.2 yamt for (i = 0; i < ARRAY_SIZE(list); i++) { \ 49 1.2.4.2 yamt if (list[i].type == val) \ 50 1.2.4.2 yamt return list[i].name; \ 51 1.2.4.2 yamt } \ 52 1.2.4.2 yamt return "(unknown)"; \ 53 1.2.4.2 yamt } 54 1.2.4.2 yamt 55 1.2.4.2 yamt /* 56 1.2.4.2 yamt * Global properties 57 1.2.4.2 yamt */ 58 1.2.4.2 yamt static struct drm_prop_enum_list drm_dpms_enum_list[] = 59 1.2.4.2 yamt { { DRM_MODE_DPMS_ON, "On" }, 60 1.2.4.2 yamt { DRM_MODE_DPMS_STANDBY, "Standby" }, 61 1.2.4.2 yamt { DRM_MODE_DPMS_SUSPEND, "Suspend" }, 62 1.2.4.2 yamt { DRM_MODE_DPMS_OFF, "Off" } 63 1.2.4.2 yamt }; 64 1.2.4.2 yamt 65 1.2.4.2 yamt DRM_ENUM_NAME_FN(drm_get_dpms_name, drm_dpms_enum_list) 66 1.2.4.2 yamt 67 1.2.4.2 yamt /* 68 1.2.4.2 yamt * Optional properties 69 1.2.4.2 yamt */ 70 1.2.4.2 yamt static struct drm_prop_enum_list drm_scaling_mode_enum_list[] = 71 1.2.4.2 yamt { 72 1.2.4.2 yamt { DRM_MODE_SCALE_NONE, "None" }, 73 1.2.4.2 yamt { DRM_MODE_SCALE_FULLSCREEN, "Full" }, 74 1.2.4.2 yamt { DRM_MODE_SCALE_CENTER, "Center" }, 75 1.2.4.2 yamt { DRM_MODE_SCALE_ASPECT, "Full aspect" }, 76 1.2.4.2 yamt }; 77 1.2.4.2 yamt 78 1.2.4.2 yamt static struct drm_prop_enum_list drm_dithering_mode_enum_list[] = 79 1.2.4.2 yamt { 80 1.2.4.2 yamt { DRM_MODE_DITHERING_OFF, "Off" }, 81 1.2.4.2 yamt { DRM_MODE_DITHERING_ON, "On" }, 82 1.2.4.2 yamt { DRM_MODE_DITHERING_AUTO, "Automatic" }, 83 1.2.4.2 yamt }; 84 1.2.4.2 yamt 85 1.2.4.2 yamt /* 86 1.2.4.2 yamt * Non-global properties, but "required" for certain connectors. 87 1.2.4.2 yamt */ 88 1.2.4.2 yamt static struct drm_prop_enum_list drm_dvi_i_select_enum_list[] = 89 1.2.4.2 yamt { 90 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 91 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 92 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 93 1.2.4.2 yamt }; 94 1.2.4.2 yamt 95 1.2.4.2 yamt DRM_ENUM_NAME_FN(drm_get_dvi_i_select_name, drm_dvi_i_select_enum_list) 96 1.2.4.2 yamt 97 1.2.4.2 yamt static struct drm_prop_enum_list drm_dvi_i_subconnector_enum_list[] = 98 1.2.4.2 yamt { 99 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 100 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_DVID, "DVI-D" }, /* DVI-I */ 101 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_DVIA, "DVI-A" }, /* DVI-I */ 102 1.2.4.2 yamt }; 103 1.2.4.2 yamt 104 1.2.4.2 yamt DRM_ENUM_NAME_FN(drm_get_dvi_i_subconnector_name, 105 1.2.4.2 yamt drm_dvi_i_subconnector_enum_list) 106 1.2.4.2 yamt 107 1.2.4.2 yamt static struct drm_prop_enum_list drm_tv_select_enum_list[] = 108 1.2.4.2 yamt { 109 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Automatic, "Automatic" }, /* DVI-I and TV-out */ 110 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 111 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 112 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 113 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 114 1.2.4.2 yamt }; 115 1.2.4.2 yamt 116 1.2.4.2 yamt DRM_ENUM_NAME_FN(drm_get_tv_select_name, drm_tv_select_enum_list) 117 1.2.4.2 yamt 118 1.2.4.2 yamt static struct drm_prop_enum_list drm_tv_subconnector_enum_list[] = 119 1.2.4.2 yamt { 120 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Unknown, "Unknown" }, /* DVI-I and TV-out */ 121 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Composite, "Composite" }, /* TV-out */ 122 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_SVIDEO, "SVIDEO" }, /* TV-out */ 123 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_Component, "Component" }, /* TV-out */ 124 1.2.4.2 yamt { DRM_MODE_SUBCONNECTOR_SCART, "SCART" }, /* TV-out */ 125 1.2.4.2 yamt }; 126 1.2.4.2 yamt 127 1.2.4.2 yamt DRM_ENUM_NAME_FN(drm_get_tv_subconnector_name, 128 1.2.4.2 yamt drm_tv_subconnector_enum_list) 129 1.2.4.2 yamt 130 1.2.4.2 yamt static struct drm_prop_enum_list drm_dirty_info_enum_list[] = { 131 1.2.4.2 yamt { DRM_MODE_DIRTY_OFF, "Off" }, 132 1.2.4.2 yamt { DRM_MODE_DIRTY_ON, "On" }, 133 1.2.4.2 yamt { DRM_MODE_DIRTY_ANNOTATE, "Annotate" }, 134 1.2.4.2 yamt }; 135 1.2.4.2 yamt 136 1.2.4.2 yamt #ifndef __NetBSD__ 137 1.2.4.2 yamt /* XXX Doesn't seem to be used... */ 138 1.2.4.2 yamt DRM_ENUM_NAME_FN(drm_get_dirty_info_name, 139 1.2.4.2 yamt drm_dirty_info_enum_list) 140 1.2.4.2 yamt #endif 141 1.2.4.2 yamt 142 1.2.4.2 yamt struct drm_conn_prop_enum_list { 143 1.2.4.2 yamt int type; 144 1.2.4.2 yamt const char *name; 145 1.2.4.2 yamt int count; 146 1.2.4.2 yamt }; 147 1.2.4.2 yamt 148 1.2.4.2 yamt /* 149 1.2.4.2 yamt * Connector and encoder types. 150 1.2.4.2 yamt */ 151 1.2.4.2 yamt static struct drm_conn_prop_enum_list drm_connector_enum_list[] = 152 1.2.4.2 yamt { { DRM_MODE_CONNECTOR_Unknown, "Unknown", 0 }, 153 1.2.4.2 yamt { DRM_MODE_CONNECTOR_VGA, "VGA", 0 }, 154 1.2.4.2 yamt { DRM_MODE_CONNECTOR_DVII, "DVI-I", 0 }, 155 1.2.4.2 yamt { DRM_MODE_CONNECTOR_DVID, "DVI-D", 0 }, 156 1.2.4.2 yamt { DRM_MODE_CONNECTOR_DVIA, "DVI-A", 0 }, 157 1.2.4.2 yamt { DRM_MODE_CONNECTOR_Composite, "Composite", 0 }, 158 1.2.4.2 yamt { DRM_MODE_CONNECTOR_SVIDEO, "SVIDEO", 0 }, 159 1.2.4.2 yamt { DRM_MODE_CONNECTOR_LVDS, "LVDS", 0 }, 160 1.2.4.2 yamt { DRM_MODE_CONNECTOR_Component, "Component", 0 }, 161 1.2.4.2 yamt { DRM_MODE_CONNECTOR_9PinDIN, "DIN", 0 }, 162 1.2.4.2 yamt { DRM_MODE_CONNECTOR_DisplayPort, "DP", 0 }, 163 1.2.4.2 yamt { DRM_MODE_CONNECTOR_HDMIA, "HDMI-A", 0 }, 164 1.2.4.2 yamt { DRM_MODE_CONNECTOR_HDMIB, "HDMI-B", 0 }, 165 1.2.4.2 yamt { DRM_MODE_CONNECTOR_TV, "TV", 0 }, 166 1.2.4.2 yamt { DRM_MODE_CONNECTOR_eDP, "eDP", 0 }, 167 1.2.4.2 yamt { DRM_MODE_CONNECTOR_VIRTUAL, "Virtual", 0}, 168 1.2.4.2 yamt }; 169 1.2.4.2 yamt 170 1.2.4.2 yamt static struct drm_prop_enum_list drm_encoder_enum_list[] = 171 1.2.4.2 yamt { { DRM_MODE_ENCODER_NONE, "None" }, 172 1.2.4.2 yamt { DRM_MODE_ENCODER_DAC, "DAC" }, 173 1.2.4.2 yamt { DRM_MODE_ENCODER_TMDS, "TMDS" }, 174 1.2.4.2 yamt { DRM_MODE_ENCODER_LVDS, "LVDS" }, 175 1.2.4.2 yamt { DRM_MODE_ENCODER_TVDAC, "TV" }, 176 1.2.4.2 yamt { DRM_MODE_ENCODER_VIRTUAL, "Virtual" }, 177 1.2.4.2 yamt }; 178 1.2.4.2 yamt 179 1.2.4.2 yamt char *drm_get_encoder_name(struct drm_encoder *encoder) 180 1.2.4.2 yamt { 181 1.2.4.2 yamt static char buf[32]; 182 1.2.4.2 yamt 183 1.2.4.2 yamt snprintf(buf, 32, "%s-%d", 184 1.2.4.2 yamt drm_encoder_enum_list[encoder->encoder_type].name, 185 1.2.4.2 yamt encoder->base.id); 186 1.2.4.2 yamt return buf; 187 1.2.4.2 yamt } 188 1.2.4.2 yamt EXPORT_SYMBOL(drm_get_encoder_name); 189 1.2.4.2 yamt 190 1.2.4.2 yamt char *drm_get_connector_name(struct drm_connector *connector) 191 1.2.4.2 yamt { 192 1.2.4.2 yamt static char buf[32]; 193 1.2.4.2 yamt 194 1.2.4.2 yamt snprintf(buf, 32, "%s-%d", 195 1.2.4.2 yamt drm_connector_enum_list[connector->connector_type].name, 196 1.2.4.2 yamt connector->connector_type_id); 197 1.2.4.2 yamt return buf; 198 1.2.4.2 yamt } 199 1.2.4.2 yamt EXPORT_SYMBOL(drm_get_connector_name); 200 1.2.4.2 yamt 201 1.2.4.2 yamt #ifndef __NetBSD__ 202 1.2.4.2 yamt char *drm_get_connector_status_name(enum drm_connector_status status) 203 1.2.4.2 yamt { 204 1.2.4.2 yamt if (status == connector_status_connected) 205 1.2.4.2 yamt return "connected"; 206 1.2.4.2 yamt else if (status == connector_status_disconnected) 207 1.2.4.2 yamt return "disconnected"; 208 1.2.4.2 yamt else 209 1.2.4.2 yamt return "unknown"; 210 1.2.4.2 yamt } 211 1.2.4.2 yamt #endif 212 1.2.4.2 yamt 213 1.2.4.2 yamt /** 214 1.2.4.2 yamt * drm_mode_object_get - allocate a new identifier 215 1.2.4.2 yamt * @dev: DRM device 216 1.2.4.2 yamt * @ptr: object pointer, used to generate unique ID 217 1.2.4.2 yamt * @type: object type 218 1.2.4.2 yamt * 219 1.2.4.2 yamt * LOCKING: 220 1.2.4.2 yamt * 221 1.2.4.2 yamt * Create a unique identifier based on @ptr in @dev's identifier space. Used 222 1.2.4.2 yamt * for tracking modes, CRTCs and connectors. 223 1.2.4.2 yamt * 224 1.2.4.2 yamt * RETURNS: 225 1.2.4.2 yamt * New unique (relative to other objects in @dev) integer identifier for the 226 1.2.4.2 yamt * object. 227 1.2.4.2 yamt */ 228 1.2.4.2 yamt static int drm_mode_object_get(struct drm_device *dev, 229 1.2.4.2 yamt struct drm_mode_object *obj, uint32_t obj_type) 230 1.2.4.2 yamt { 231 1.2.4.2 yamt int new_id = 0; 232 1.2.4.2 yamt int ret; 233 1.2.4.2 yamt 234 1.2.4.2 yamt again: 235 1.2.4.2 yamt if (idr_pre_get(&dev->mode_config.crtc_idr, GFP_KERNEL) == 0) { 236 1.2.4.2 yamt DRM_ERROR("Ran out memory getting a mode number\n"); 237 1.2.4.2 yamt return -ENOMEM; 238 1.2.4.2 yamt } 239 1.2.4.2 yamt 240 1.2.4.2 yamt mutex_lock(&dev->mode_config.idr_mutex); 241 1.2.4.2 yamt ret = idr_get_new_above(&dev->mode_config.crtc_idr, obj, 1, &new_id); 242 1.2.4.2 yamt mutex_unlock(&dev->mode_config.idr_mutex); 243 1.2.4.2 yamt if (ret == -EAGAIN) 244 1.2.4.2 yamt goto again; 245 1.2.4.2 yamt else if (ret) 246 1.2.4.2 yamt return ret; 247 1.2.4.2 yamt 248 1.2.4.2 yamt obj->id = new_id; 249 1.2.4.2 yamt obj->type = obj_type; 250 1.2.4.2 yamt return 0; 251 1.2.4.2 yamt } 252 1.2.4.2 yamt 253 1.2.4.2 yamt /** 254 1.2.4.2 yamt * drm_mode_object_put - free an identifer 255 1.2.4.2 yamt * @dev: DRM device 256 1.2.4.2 yamt * @id: ID to free 257 1.2.4.2 yamt * 258 1.2.4.2 yamt * LOCKING: 259 1.2.4.2 yamt * Caller must hold DRM mode_config lock. 260 1.2.4.2 yamt * 261 1.2.4.2 yamt * Free @id from @dev's unique identifier pool. 262 1.2.4.2 yamt */ 263 1.2.4.2 yamt static void drm_mode_object_put(struct drm_device *dev, 264 1.2.4.2 yamt struct drm_mode_object *object) 265 1.2.4.2 yamt { 266 1.2.4.2 yamt mutex_lock(&dev->mode_config.idr_mutex); 267 1.2.4.2 yamt idr_remove(&dev->mode_config.crtc_idr, object->id); 268 1.2.4.2 yamt mutex_unlock(&dev->mode_config.idr_mutex); 269 1.2.4.2 yamt } 270 1.2.4.2 yamt 271 1.2.4.2 yamt struct drm_mode_object *drm_mode_object_find(struct drm_device *dev, 272 1.2.4.2 yamt uint32_t id, uint32_t type) 273 1.2.4.2 yamt { 274 1.2.4.2 yamt struct drm_mode_object *obj = NULL; 275 1.2.4.2 yamt 276 1.2.4.2 yamt mutex_lock(&dev->mode_config.idr_mutex); 277 1.2.4.2 yamt obj = idr_find(&dev->mode_config.crtc_idr, id); 278 1.2.4.2 yamt if (!obj || (obj->type != type) || (obj->id != id)) 279 1.2.4.2 yamt obj = NULL; 280 1.2.4.2 yamt mutex_unlock(&dev->mode_config.idr_mutex); 281 1.2.4.2 yamt 282 1.2.4.2 yamt return obj; 283 1.2.4.2 yamt } 284 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_object_find); 285 1.2.4.2 yamt 286 1.2.4.2 yamt /** 287 1.2.4.2 yamt * drm_framebuffer_init - initialize a framebuffer 288 1.2.4.2 yamt * @dev: DRM device 289 1.2.4.2 yamt * 290 1.2.4.2 yamt * LOCKING: 291 1.2.4.2 yamt * Caller must hold mode config lock. 292 1.2.4.2 yamt * 293 1.2.4.2 yamt * Allocates an ID for the framebuffer's parent mode object, sets its mode 294 1.2.4.2 yamt * functions & device file and adds it to the master fd list. 295 1.2.4.2 yamt * 296 1.2.4.2 yamt * RETURNS: 297 1.2.4.2 yamt * Zero on success, error code on failure. 298 1.2.4.2 yamt */ 299 1.2.4.2 yamt int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb, 300 1.2.4.2 yamt const struct drm_framebuffer_funcs *funcs) 301 1.2.4.2 yamt { 302 1.2.4.2 yamt int ret; 303 1.2.4.2 yamt 304 1.2.4.2 yamt kref_init(&fb->refcount); 305 1.2.4.2 yamt 306 1.2.4.2 yamt ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB); 307 1.2.4.2 yamt if (ret) 308 1.2.4.2 yamt return ret; 309 1.2.4.2 yamt 310 1.2.4.2 yamt fb->dev = dev; 311 1.2.4.2 yamt fb->funcs = funcs; 312 1.2.4.2 yamt dev->mode_config.num_fb++; 313 1.2.4.2 yamt list_add(&fb->head, &dev->mode_config.fb_list); 314 1.2.4.2 yamt 315 1.2.4.2 yamt return 0; 316 1.2.4.2 yamt } 317 1.2.4.2 yamt EXPORT_SYMBOL(drm_framebuffer_init); 318 1.2.4.2 yamt 319 1.2.4.2 yamt static void drm_framebuffer_free(struct kref *kref) 320 1.2.4.2 yamt { 321 1.2.4.2 yamt struct drm_framebuffer *fb = 322 1.2.4.2 yamt container_of(kref, struct drm_framebuffer, refcount); 323 1.2.4.2 yamt fb->funcs->destroy(fb); 324 1.2.4.2 yamt } 325 1.2.4.2 yamt 326 1.2.4.2 yamt /** 327 1.2.4.2 yamt * drm_framebuffer_unreference - unref a framebuffer 328 1.2.4.2 yamt * 329 1.2.4.2 yamt * LOCKING: 330 1.2.4.2 yamt * Caller must hold mode config lock. 331 1.2.4.2 yamt */ 332 1.2.4.2 yamt void drm_framebuffer_unreference(struct drm_framebuffer *fb) 333 1.2.4.2 yamt { 334 1.2.4.2 yamt struct drm_device *dev = fb->dev; 335 1.2.4.2 yamt DRM_DEBUG("FB ID: %d\n", fb->base.id); 336 1.2.4.2 yamt WARN_ON(!mutex_is_locked(&dev->mode_config.mutex)); 337 1.2.4.2 yamt kref_put(&fb->refcount, drm_framebuffer_free); 338 1.2.4.2 yamt } 339 1.2.4.2 yamt EXPORT_SYMBOL(drm_framebuffer_unreference); 340 1.2.4.2 yamt 341 1.2.4.2 yamt /** 342 1.2.4.2 yamt * drm_framebuffer_reference - incr the fb refcnt 343 1.2.4.2 yamt */ 344 1.2.4.2 yamt void drm_framebuffer_reference(struct drm_framebuffer *fb) 345 1.2.4.2 yamt { 346 1.2.4.2 yamt DRM_DEBUG("FB ID: %d\n", fb->base.id); 347 1.2.4.2 yamt kref_get(&fb->refcount); 348 1.2.4.2 yamt } 349 1.2.4.2 yamt EXPORT_SYMBOL(drm_framebuffer_reference); 350 1.2.4.2 yamt 351 1.2.4.2 yamt /** 352 1.2.4.2 yamt * drm_framebuffer_cleanup - remove a framebuffer object 353 1.2.4.2 yamt * @fb: framebuffer to remove 354 1.2.4.2 yamt * 355 1.2.4.2 yamt * LOCKING: 356 1.2.4.2 yamt * Caller must hold mode config lock. 357 1.2.4.2 yamt * 358 1.2.4.2 yamt * Scans all the CRTCs in @dev's mode_config. If they're using @fb, removes 359 1.2.4.2 yamt * it, setting it to NULL. 360 1.2.4.2 yamt */ 361 1.2.4.2 yamt void drm_framebuffer_cleanup(struct drm_framebuffer *fb) 362 1.2.4.2 yamt { 363 1.2.4.2 yamt struct drm_device *dev = fb->dev; 364 1.2.4.2 yamt /* 365 1.2.4.2 yamt * This could be moved to drm_framebuffer_remove(), but for 366 1.2.4.2 yamt * debugging is nice to keep around the list of fb's that are 367 1.2.4.2 yamt * no longer associated w/ a drm_file but are not unreferenced 368 1.2.4.2 yamt * yet. (i915 and omapdrm have debugfs files which will show 369 1.2.4.2 yamt * this.) 370 1.2.4.2 yamt */ 371 1.2.4.2 yamt drm_mode_object_put(dev, &fb->base); 372 1.2.4.2 yamt list_del(&fb->head); 373 1.2.4.2 yamt dev->mode_config.num_fb--; 374 1.2.4.2 yamt } 375 1.2.4.2 yamt EXPORT_SYMBOL(drm_framebuffer_cleanup); 376 1.2.4.2 yamt 377 1.2.4.2 yamt /** 378 1.2.4.2 yamt * drm_framebuffer_remove - remove and unreference a framebuffer object 379 1.2.4.2 yamt * @fb: framebuffer to remove 380 1.2.4.2 yamt * 381 1.2.4.2 yamt * LOCKING: 382 1.2.4.2 yamt * Caller must hold mode config lock. 383 1.2.4.2 yamt * 384 1.2.4.2 yamt * Scans all the CRTCs and planes in @dev's mode_config. If they're 385 1.2.4.2 yamt * using @fb, removes it, setting it to NULL. 386 1.2.4.2 yamt */ 387 1.2.4.2 yamt void drm_framebuffer_remove(struct drm_framebuffer *fb) 388 1.2.4.2 yamt { 389 1.2.4.2 yamt struct drm_device *dev = fb->dev; 390 1.2.4.2 yamt struct drm_crtc *crtc; 391 1.2.4.2 yamt struct drm_plane *plane; 392 1.2.4.2 yamt struct drm_mode_set set; 393 1.2.4.2 yamt int ret; 394 1.2.4.2 yamt 395 1.2.4.2 yamt /* remove from any CRTC */ 396 1.2.4.2 yamt list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { 397 1.2.4.2 yamt if (crtc->fb == fb) { 398 1.2.4.2 yamt /* should turn off the crtc */ 399 1.2.4.2 yamt memset(&set, 0, sizeof(struct drm_mode_set)); 400 1.2.4.2 yamt set.crtc = crtc; 401 1.2.4.2 yamt set.fb = NULL; 402 1.2.4.2 yamt ret = crtc->funcs->set_config(&set); 403 1.2.4.2 yamt if (ret) 404 1.2.4.2 yamt DRM_ERROR("failed to reset crtc %p when fb was deleted\n", crtc); 405 1.2.4.2 yamt } 406 1.2.4.2 yamt } 407 1.2.4.2 yamt 408 1.2.4.2 yamt list_for_each_entry(plane, &dev->mode_config.plane_list, head) { 409 1.2.4.2 yamt if (plane->fb == fb) { 410 1.2.4.2 yamt /* should turn off the crtc */ 411 1.2.4.2 yamt ret = plane->funcs->disable_plane(plane); 412 1.2.4.2 yamt if (ret) 413 1.2.4.2 yamt DRM_ERROR("failed to disable plane with busy fb\n"); 414 1.2.4.2 yamt /* disconnect the plane from the fb and crtc: */ 415 1.2.4.2 yamt plane->fb = NULL; 416 1.2.4.2 yamt plane->crtc = NULL; 417 1.2.4.2 yamt } 418 1.2.4.2 yamt } 419 1.2.4.2 yamt 420 1.2.4.2 yamt list_del(&fb->filp_head); 421 1.2.4.2 yamt 422 1.2.4.2 yamt drm_framebuffer_unreference(fb); 423 1.2.4.2 yamt } 424 1.2.4.2 yamt EXPORT_SYMBOL(drm_framebuffer_remove); 425 1.2.4.2 yamt 426 1.2.4.2 yamt /** 427 1.2.4.2 yamt * drm_crtc_init - Initialise a new CRTC object 428 1.2.4.2 yamt * @dev: DRM device 429 1.2.4.2 yamt * @crtc: CRTC object to init 430 1.2.4.2 yamt * @funcs: callbacks for the new CRTC 431 1.2.4.2 yamt * 432 1.2.4.2 yamt * LOCKING: 433 1.2.4.2 yamt * Takes mode_config lock. 434 1.2.4.2 yamt * 435 1.2.4.2 yamt * Inits a new object created as base part of an driver crtc object. 436 1.2.4.2 yamt * 437 1.2.4.2 yamt * RETURNS: 438 1.2.4.2 yamt * Zero on success, error code on failure. 439 1.2.4.2 yamt */ 440 1.2.4.2 yamt int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc, 441 1.2.4.2 yamt const struct drm_crtc_funcs *funcs) 442 1.2.4.2 yamt { 443 1.2.4.2 yamt int ret; 444 1.2.4.2 yamt 445 1.2.4.2 yamt crtc->dev = dev; 446 1.2.4.2 yamt crtc->funcs = funcs; 447 1.2.4.2 yamt crtc->invert_dimensions = false; 448 1.2.4.2 yamt 449 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 450 1.2.4.2 yamt 451 1.2.4.2 yamt ret = drm_mode_object_get(dev, &crtc->base, DRM_MODE_OBJECT_CRTC); 452 1.2.4.2 yamt if (ret) 453 1.2.4.2 yamt goto out; 454 1.2.4.2 yamt 455 1.2.4.2 yamt crtc->base.properties = &crtc->properties; 456 1.2.4.2 yamt 457 1.2.4.2 yamt list_add_tail(&crtc->head, &dev->mode_config.crtc_list); 458 1.2.4.2 yamt dev->mode_config.num_crtc++; 459 1.2.4.2 yamt 460 1.2.4.2 yamt out: 461 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 462 1.2.4.2 yamt 463 1.2.4.2 yamt return ret; 464 1.2.4.2 yamt } 465 1.2.4.2 yamt EXPORT_SYMBOL(drm_crtc_init); 466 1.2.4.2 yamt 467 1.2.4.2 yamt /** 468 1.2.4.2 yamt * drm_crtc_cleanup - Cleans up the core crtc usage. 469 1.2.4.2 yamt * @crtc: CRTC to cleanup 470 1.2.4.2 yamt * 471 1.2.4.2 yamt * LOCKING: 472 1.2.4.2 yamt * Caller must hold mode config lock. 473 1.2.4.2 yamt * 474 1.2.4.2 yamt * Cleanup @crtc. Removes from drm modesetting space 475 1.2.4.2 yamt * does NOT free object, caller does that. 476 1.2.4.2 yamt */ 477 1.2.4.2 yamt void drm_crtc_cleanup(struct drm_crtc *crtc) 478 1.2.4.2 yamt { 479 1.2.4.2 yamt struct drm_device *dev = crtc->dev; 480 1.2.4.2 yamt 481 1.2.4.2 yamt kfree(crtc->gamma_store); 482 1.2.4.2 yamt crtc->gamma_store = NULL; 483 1.2.4.2 yamt 484 1.2.4.2 yamt drm_mode_object_put(dev, &crtc->base); 485 1.2.4.2 yamt list_del(&crtc->head); 486 1.2.4.2 yamt dev->mode_config.num_crtc--; 487 1.2.4.2 yamt } 488 1.2.4.2 yamt EXPORT_SYMBOL(drm_crtc_cleanup); 489 1.2.4.2 yamt 490 1.2.4.2 yamt /** 491 1.2.4.2 yamt * drm_mode_probed_add - add a mode to a connector's probed mode list 492 1.2.4.2 yamt * @connector: connector the new mode 493 1.2.4.2 yamt * @mode: mode data 494 1.2.4.2 yamt * 495 1.2.4.2 yamt * LOCKING: 496 1.2.4.2 yamt * Caller must hold mode config lock. 497 1.2.4.2 yamt * 498 1.2.4.2 yamt * Add @mode to @connector's mode list for later use. 499 1.2.4.2 yamt */ 500 1.2.4.2 yamt void drm_mode_probed_add(struct drm_connector *connector, 501 1.2.4.2 yamt struct drm_display_mode *mode) 502 1.2.4.2 yamt { 503 1.2.4.2 yamt list_add(&mode->head, &connector->probed_modes); 504 1.2.4.2 yamt } 505 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_probed_add); 506 1.2.4.2 yamt 507 1.2.4.2 yamt /** 508 1.2.4.2 yamt * drm_mode_remove - remove and free a mode 509 1.2.4.2 yamt * @connector: connector list to modify 510 1.2.4.2 yamt * @mode: mode to remove 511 1.2.4.2 yamt * 512 1.2.4.2 yamt * LOCKING: 513 1.2.4.2 yamt * Caller must hold mode config lock. 514 1.2.4.2 yamt * 515 1.2.4.2 yamt * Remove @mode from @connector's mode list, then free it. 516 1.2.4.2 yamt */ 517 1.2.4.2 yamt void drm_mode_remove(struct drm_connector *connector, 518 1.2.4.2 yamt struct drm_display_mode *mode) 519 1.2.4.2 yamt { 520 1.2.4.2 yamt list_del(&mode->head); 521 1.2.4.2 yamt drm_mode_destroy(connector->dev, mode); 522 1.2.4.2 yamt } 523 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_remove); 524 1.2.4.2 yamt 525 1.2.4.2 yamt /** 526 1.2.4.2 yamt * drm_connector_init - Init a preallocated connector 527 1.2.4.2 yamt * @dev: DRM device 528 1.2.4.2 yamt * @connector: the connector to init 529 1.2.4.2 yamt * @funcs: callbacks for this connector 530 1.2.4.2 yamt * @name: user visible name of the connector 531 1.2.4.2 yamt * 532 1.2.4.2 yamt * LOCKING: 533 1.2.4.2 yamt * Takes mode config lock. 534 1.2.4.2 yamt * 535 1.2.4.2 yamt * Initialises a preallocated connector. Connectors should be 536 1.2.4.2 yamt * subclassed as part of driver connector objects. 537 1.2.4.2 yamt * 538 1.2.4.2 yamt * RETURNS: 539 1.2.4.2 yamt * Zero on success, error code on failure. 540 1.2.4.2 yamt */ 541 1.2.4.2 yamt int drm_connector_init(struct drm_device *dev, 542 1.2.4.2 yamt struct drm_connector *connector, 543 1.2.4.2 yamt const struct drm_connector_funcs *funcs, 544 1.2.4.2 yamt int connector_type) 545 1.2.4.2 yamt { 546 1.2.4.2 yamt int ret; 547 1.2.4.2 yamt 548 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 549 1.2.4.2 yamt 550 1.2.4.2 yamt ret = drm_mode_object_get(dev, &connector->base, DRM_MODE_OBJECT_CONNECTOR); 551 1.2.4.2 yamt if (ret) 552 1.2.4.2 yamt goto out; 553 1.2.4.2 yamt 554 1.2.4.2 yamt connector->base.properties = &connector->properties; 555 1.2.4.2 yamt connector->dev = dev; 556 1.2.4.2 yamt connector->funcs = funcs; 557 1.2.4.2 yamt connector->connector_type = connector_type; 558 1.2.4.2 yamt connector->connector_type_id = 559 1.2.4.2 yamt ++drm_connector_enum_list[connector_type].count; /* TODO */ 560 1.2.4.2 yamt INIT_LIST_HEAD(&connector->user_modes); 561 1.2.4.2 yamt INIT_LIST_HEAD(&connector->probed_modes); 562 1.2.4.2 yamt INIT_LIST_HEAD(&connector->modes); 563 1.2.4.2 yamt connector->edid_blob_ptr = NULL; 564 1.2.4.2 yamt connector->status = connector_status_unknown; 565 1.2.4.2 yamt 566 1.2.4.2 yamt list_add_tail(&connector->head, &dev->mode_config.connector_list); 567 1.2.4.2 yamt dev->mode_config.num_connector++; 568 1.2.4.2 yamt 569 1.2.4.2 yamt if (connector_type != DRM_MODE_CONNECTOR_VIRTUAL) 570 1.2.4.2 yamt drm_object_attach_property(&connector->base, 571 1.2.4.2 yamt dev->mode_config.edid_property, 572 1.2.4.2 yamt 0); 573 1.2.4.2 yamt 574 1.2.4.2 yamt drm_object_attach_property(&connector->base, 575 1.2.4.2 yamt dev->mode_config.dpms_property, 0); 576 1.2.4.2 yamt 577 1.2.4.2 yamt out: 578 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 579 1.2.4.2 yamt 580 1.2.4.2 yamt return ret; 581 1.2.4.2 yamt } 582 1.2.4.2 yamt EXPORT_SYMBOL(drm_connector_init); 583 1.2.4.2 yamt 584 1.2.4.2 yamt /** 585 1.2.4.2 yamt * drm_connector_cleanup - cleans up an initialised connector 586 1.2.4.2 yamt * @connector: connector to cleanup 587 1.2.4.2 yamt * 588 1.2.4.2 yamt * LOCKING: 589 1.2.4.2 yamt * Takes mode config lock. 590 1.2.4.2 yamt * 591 1.2.4.2 yamt * Cleans up the connector but doesn't free the object. 592 1.2.4.2 yamt */ 593 1.2.4.2 yamt void drm_connector_cleanup(struct drm_connector *connector) 594 1.2.4.2 yamt { 595 1.2.4.2 yamt struct drm_device *dev = connector->dev; 596 1.2.4.2 yamt struct drm_display_mode *mode, *t; 597 1.2.4.2 yamt 598 1.2.4.2 yamt list_for_each_entry_safe(mode, t, &connector->probed_modes, head) 599 1.2.4.2 yamt drm_mode_remove(connector, mode); 600 1.2.4.2 yamt 601 1.2.4.2 yamt list_for_each_entry_safe(mode, t, &connector->modes, head) 602 1.2.4.2 yamt drm_mode_remove(connector, mode); 603 1.2.4.2 yamt 604 1.2.4.2 yamt list_for_each_entry_safe(mode, t, &connector->user_modes, head) 605 1.2.4.2 yamt drm_mode_remove(connector, mode); 606 1.2.4.2 yamt 607 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 608 1.2.4.2 yamt drm_mode_object_put(dev, &connector->base); 609 1.2.4.2 yamt list_del(&connector->head); 610 1.2.4.2 yamt dev->mode_config.num_connector--; 611 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 612 1.2.4.2 yamt } 613 1.2.4.2 yamt EXPORT_SYMBOL(drm_connector_cleanup); 614 1.2.4.2 yamt 615 1.2.4.2 yamt void drm_connector_unplug_all(struct drm_device *dev) 616 1.2.4.2 yamt { 617 1.2.4.2 yamt #ifndef __NetBSD__ 618 1.2.4.2 yamt struct drm_connector *connector; 619 1.2.4.2 yamt 620 1.2.4.2 yamt /* taking the mode config mutex ends up in a clash with sysfs */ 621 1.2.4.2 yamt list_for_each_entry(connector, &dev->mode_config.connector_list, head) 622 1.2.4.2 yamt drm_sysfs_connector_remove(connector); 623 1.2.4.2 yamt #endif 624 1.2.4.2 yamt 625 1.2.4.2 yamt } 626 1.2.4.2 yamt EXPORT_SYMBOL(drm_connector_unplug_all); 627 1.2.4.2 yamt 628 1.2.4.2 yamt int drm_encoder_init(struct drm_device *dev, 629 1.2.4.2 yamt struct drm_encoder *encoder, 630 1.2.4.2 yamt const struct drm_encoder_funcs *funcs, 631 1.2.4.2 yamt int encoder_type) 632 1.2.4.2 yamt { 633 1.2.4.2 yamt int ret; 634 1.2.4.2 yamt 635 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 636 1.2.4.2 yamt 637 1.2.4.2 yamt ret = drm_mode_object_get(dev, &encoder->base, DRM_MODE_OBJECT_ENCODER); 638 1.2.4.2 yamt if (ret) 639 1.2.4.2 yamt goto out; 640 1.2.4.2 yamt 641 1.2.4.2 yamt encoder->dev = dev; 642 1.2.4.2 yamt encoder->encoder_type = encoder_type; 643 1.2.4.2 yamt encoder->funcs = funcs; 644 1.2.4.2 yamt 645 1.2.4.2 yamt list_add_tail(&encoder->head, &dev->mode_config.encoder_list); 646 1.2.4.2 yamt dev->mode_config.num_encoder++; 647 1.2.4.2 yamt 648 1.2.4.2 yamt out: 649 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 650 1.2.4.2 yamt 651 1.2.4.2 yamt return ret; 652 1.2.4.2 yamt } 653 1.2.4.2 yamt EXPORT_SYMBOL(drm_encoder_init); 654 1.2.4.2 yamt 655 1.2.4.2 yamt void drm_encoder_cleanup(struct drm_encoder *encoder) 656 1.2.4.2 yamt { 657 1.2.4.2 yamt struct drm_device *dev = encoder->dev; 658 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 659 1.2.4.2 yamt drm_mode_object_put(dev, &encoder->base); 660 1.2.4.2 yamt list_del(&encoder->head); 661 1.2.4.2 yamt dev->mode_config.num_encoder--; 662 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 663 1.2.4.2 yamt } 664 1.2.4.2 yamt EXPORT_SYMBOL(drm_encoder_cleanup); 665 1.2.4.2 yamt 666 1.2.4.2 yamt int drm_plane_init(struct drm_device *dev, struct drm_plane *plane, 667 1.2.4.2 yamt unsigned long possible_crtcs, 668 1.2.4.2 yamt const struct drm_plane_funcs *funcs, 669 1.2.4.2 yamt const uint32_t *formats, uint32_t format_count, 670 1.2.4.2 yamt bool priv) 671 1.2.4.2 yamt { 672 1.2.4.2 yamt int ret; 673 1.2.4.2 yamt 674 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 675 1.2.4.2 yamt 676 1.2.4.2 yamt ret = drm_mode_object_get(dev, &plane->base, DRM_MODE_OBJECT_PLANE); 677 1.2.4.2 yamt if (ret) 678 1.2.4.2 yamt goto out; 679 1.2.4.2 yamt 680 1.2.4.2 yamt plane->base.properties = &plane->properties; 681 1.2.4.2 yamt plane->dev = dev; 682 1.2.4.2 yamt plane->funcs = funcs; 683 1.2.4.2 yamt plane->format_types = kmalloc(sizeof(uint32_t) * format_count, 684 1.2.4.2 yamt GFP_KERNEL); 685 1.2.4.2 yamt if (!plane->format_types) { 686 1.2.4.2 yamt DRM_DEBUG_KMS("out of memory when allocating plane\n"); 687 1.2.4.2 yamt drm_mode_object_put(dev, &plane->base); 688 1.2.4.2 yamt ret = -ENOMEM; 689 1.2.4.2 yamt goto out; 690 1.2.4.2 yamt } 691 1.2.4.2 yamt 692 1.2.4.2 yamt memcpy(plane->format_types, formats, format_count * sizeof(uint32_t)); 693 1.2.4.2 yamt plane->format_count = format_count; 694 1.2.4.2 yamt plane->possible_crtcs = possible_crtcs; 695 1.2.4.2 yamt 696 1.2.4.2 yamt /* private planes are not exposed to userspace, but depending on 697 1.2.4.2 yamt * display hardware, might be convenient to allow sharing programming 698 1.2.4.2 yamt * for the scanout engine with the crtc implementation. 699 1.2.4.2 yamt */ 700 1.2.4.2 yamt if (!priv) { 701 1.2.4.2 yamt list_add_tail(&plane->head, &dev->mode_config.plane_list); 702 1.2.4.2 yamt dev->mode_config.num_plane++; 703 1.2.4.2 yamt } else { 704 1.2.4.2 yamt INIT_LIST_HEAD(&plane->head); 705 1.2.4.2 yamt } 706 1.2.4.2 yamt 707 1.2.4.2 yamt out: 708 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 709 1.2.4.2 yamt 710 1.2.4.2 yamt return ret; 711 1.2.4.2 yamt } 712 1.2.4.2 yamt EXPORT_SYMBOL(drm_plane_init); 713 1.2.4.2 yamt 714 1.2.4.2 yamt void drm_plane_cleanup(struct drm_plane *plane) 715 1.2.4.2 yamt { 716 1.2.4.2 yamt struct drm_device *dev = plane->dev; 717 1.2.4.2 yamt 718 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 719 1.2.4.2 yamt kfree(plane->format_types); 720 1.2.4.2 yamt drm_mode_object_put(dev, &plane->base); 721 1.2.4.2 yamt /* if not added to a list, it must be a private plane */ 722 1.2.4.2 yamt if (!list_empty(&plane->head)) { 723 1.2.4.2 yamt list_del(&plane->head); 724 1.2.4.2 yamt dev->mode_config.num_plane--; 725 1.2.4.2 yamt } 726 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 727 1.2.4.2 yamt } 728 1.2.4.2 yamt EXPORT_SYMBOL(drm_plane_cleanup); 729 1.2.4.2 yamt 730 1.2.4.2 yamt /** 731 1.2.4.2 yamt * drm_mode_create - create a new display mode 732 1.2.4.2 yamt * @dev: DRM device 733 1.2.4.2 yamt * 734 1.2.4.2 yamt * LOCKING: 735 1.2.4.2 yamt * Caller must hold DRM mode_config lock. 736 1.2.4.2 yamt * 737 1.2.4.2 yamt * Create a new drm_display_mode, give it an ID, and return it. 738 1.2.4.2 yamt * 739 1.2.4.2 yamt * RETURNS: 740 1.2.4.2 yamt * Pointer to new mode on success, NULL on error. 741 1.2.4.2 yamt */ 742 1.2.4.2 yamt struct drm_display_mode *drm_mode_create(struct drm_device *dev) 743 1.2.4.2 yamt { 744 1.2.4.2 yamt struct drm_display_mode *nmode; 745 1.2.4.2 yamt 746 1.2.4.2 yamt nmode = kzalloc(sizeof(struct drm_display_mode), GFP_KERNEL); 747 1.2.4.2 yamt if (!nmode) 748 1.2.4.2 yamt return NULL; 749 1.2.4.2 yamt 750 1.2.4.2 yamt if (drm_mode_object_get(dev, &nmode->base, DRM_MODE_OBJECT_MODE)) { 751 1.2.4.2 yamt kfree(nmode); 752 1.2.4.2 yamt return NULL; 753 1.2.4.2 yamt } 754 1.2.4.2 yamt 755 1.2.4.2 yamt return nmode; 756 1.2.4.2 yamt } 757 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_create); 758 1.2.4.2 yamt 759 1.2.4.2 yamt /** 760 1.2.4.2 yamt * drm_mode_destroy - remove a mode 761 1.2.4.2 yamt * @dev: DRM device 762 1.2.4.2 yamt * @mode: mode to remove 763 1.2.4.2 yamt * 764 1.2.4.2 yamt * LOCKING: 765 1.2.4.2 yamt * Caller must hold mode config lock. 766 1.2.4.2 yamt * 767 1.2.4.2 yamt * Free @mode's unique identifier, then free it. 768 1.2.4.2 yamt */ 769 1.2.4.2 yamt void drm_mode_destroy(struct drm_device *dev, struct drm_display_mode *mode) 770 1.2.4.2 yamt { 771 1.2.4.2 yamt if (!mode) 772 1.2.4.2 yamt return; 773 1.2.4.2 yamt 774 1.2.4.2 yamt drm_mode_object_put(dev, &mode->base); 775 1.2.4.2 yamt 776 1.2.4.2 yamt kfree(mode); 777 1.2.4.2 yamt } 778 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_destroy); 779 1.2.4.2 yamt 780 1.2.4.2 yamt static int drm_mode_create_standard_connector_properties(struct drm_device *dev) 781 1.2.4.2 yamt { 782 1.2.4.2 yamt struct drm_property *edid; 783 1.2.4.2 yamt struct drm_property *dpms; 784 1.2.4.2 yamt 785 1.2.4.2 yamt /* 786 1.2.4.2 yamt * Standard properties (apply to all connectors) 787 1.2.4.2 yamt */ 788 1.2.4.2 yamt edid = drm_property_create(dev, DRM_MODE_PROP_BLOB | 789 1.2.4.2 yamt DRM_MODE_PROP_IMMUTABLE, 790 1.2.4.2 yamt "EDID", 0); 791 1.2.4.2 yamt dev->mode_config.edid_property = edid; 792 1.2.4.2 yamt 793 1.2.4.2 yamt dpms = drm_property_create_enum(dev, 0, 794 1.2.4.2 yamt "DPMS", drm_dpms_enum_list, 795 1.2.4.2 yamt ARRAY_SIZE(drm_dpms_enum_list)); 796 1.2.4.2 yamt dev->mode_config.dpms_property = dpms; 797 1.2.4.2 yamt 798 1.2.4.2 yamt return 0; 799 1.2.4.2 yamt } 800 1.2.4.2 yamt 801 1.2.4.2 yamt /** 802 1.2.4.2 yamt * drm_mode_create_dvi_i_properties - create DVI-I specific connector properties 803 1.2.4.2 yamt * @dev: DRM device 804 1.2.4.2 yamt * 805 1.2.4.2 yamt * Called by a driver the first time a DVI-I connector is made. 806 1.2.4.2 yamt */ 807 1.2.4.2 yamt int drm_mode_create_dvi_i_properties(struct drm_device *dev) 808 1.2.4.2 yamt { 809 1.2.4.2 yamt struct drm_property *dvi_i_selector; 810 1.2.4.2 yamt struct drm_property *dvi_i_subconnector; 811 1.2.4.2 yamt 812 1.2.4.2 yamt if (dev->mode_config.dvi_i_select_subconnector_property) 813 1.2.4.2 yamt return 0; 814 1.2.4.2 yamt 815 1.2.4.2 yamt dvi_i_selector = 816 1.2.4.2 yamt drm_property_create_enum(dev, 0, 817 1.2.4.2 yamt "select subconnector", 818 1.2.4.2 yamt drm_dvi_i_select_enum_list, 819 1.2.4.2 yamt ARRAY_SIZE(drm_dvi_i_select_enum_list)); 820 1.2.4.2 yamt dev->mode_config.dvi_i_select_subconnector_property = dvi_i_selector; 821 1.2.4.2 yamt 822 1.2.4.2 yamt dvi_i_subconnector = drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 823 1.2.4.2 yamt "subconnector", 824 1.2.4.2 yamt drm_dvi_i_subconnector_enum_list, 825 1.2.4.2 yamt ARRAY_SIZE(drm_dvi_i_subconnector_enum_list)); 826 1.2.4.2 yamt dev->mode_config.dvi_i_subconnector_property = dvi_i_subconnector; 827 1.2.4.2 yamt 828 1.2.4.2 yamt return 0; 829 1.2.4.2 yamt } 830 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_create_dvi_i_properties); 831 1.2.4.2 yamt 832 1.2.4.2 yamt /** 833 1.2.4.2 yamt * drm_create_tv_properties - create TV specific connector properties 834 1.2.4.2 yamt * @dev: DRM device 835 1.2.4.2 yamt * @num_modes: number of different TV formats (modes) supported 836 1.2.4.2 yamt * @modes: array of pointers to strings containing name of each format 837 1.2.4.2 yamt * 838 1.2.4.2 yamt * Called by a driver's TV initialization routine, this function creates 839 1.2.4.2 yamt * the TV specific connector properties for a given device. Caller is 840 1.2.4.2 yamt * responsible for allocating a list of format names and passing them to 841 1.2.4.2 yamt * this routine. 842 1.2.4.2 yamt */ 843 1.2.4.2 yamt int drm_mode_create_tv_properties(struct drm_device *dev, int num_modes, 844 1.2.4.2 yamt const char *modes[]) 845 1.2.4.2 yamt { 846 1.2.4.2 yamt struct drm_property *tv_selector; 847 1.2.4.2 yamt struct drm_property *tv_subconnector; 848 1.2.4.2 yamt int i; 849 1.2.4.2 yamt 850 1.2.4.2 yamt if (dev->mode_config.tv_select_subconnector_property) 851 1.2.4.2 yamt return 0; 852 1.2.4.2 yamt 853 1.2.4.2 yamt /* 854 1.2.4.2 yamt * Basic connector properties 855 1.2.4.2 yamt */ 856 1.2.4.2 yamt tv_selector = drm_property_create_enum(dev, 0, 857 1.2.4.2 yamt "select subconnector", 858 1.2.4.2 yamt drm_tv_select_enum_list, 859 1.2.4.2 yamt ARRAY_SIZE(drm_tv_select_enum_list)); 860 1.2.4.2 yamt dev->mode_config.tv_select_subconnector_property = tv_selector; 861 1.2.4.2 yamt 862 1.2.4.2 yamt tv_subconnector = 863 1.2.4.2 yamt drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 864 1.2.4.2 yamt "subconnector", 865 1.2.4.2 yamt drm_tv_subconnector_enum_list, 866 1.2.4.2 yamt ARRAY_SIZE(drm_tv_subconnector_enum_list)); 867 1.2.4.2 yamt dev->mode_config.tv_subconnector_property = tv_subconnector; 868 1.2.4.2 yamt 869 1.2.4.2 yamt /* 870 1.2.4.2 yamt * Other, TV specific properties: margins & TV modes. 871 1.2.4.2 yamt */ 872 1.2.4.2 yamt dev->mode_config.tv_left_margin_property = 873 1.2.4.2 yamt drm_property_create_range(dev, 0, "left margin", 0, 100); 874 1.2.4.2 yamt 875 1.2.4.2 yamt dev->mode_config.tv_right_margin_property = 876 1.2.4.2 yamt drm_property_create_range(dev, 0, "right margin", 0, 100); 877 1.2.4.2 yamt 878 1.2.4.2 yamt dev->mode_config.tv_top_margin_property = 879 1.2.4.2 yamt drm_property_create_range(dev, 0, "top margin", 0, 100); 880 1.2.4.2 yamt 881 1.2.4.2 yamt dev->mode_config.tv_bottom_margin_property = 882 1.2.4.2 yamt drm_property_create_range(dev, 0, "bottom margin", 0, 100); 883 1.2.4.2 yamt 884 1.2.4.2 yamt dev->mode_config.tv_mode_property = 885 1.2.4.2 yamt drm_property_create(dev, DRM_MODE_PROP_ENUM, 886 1.2.4.2 yamt "mode", num_modes); 887 1.2.4.2 yamt for (i = 0; i < num_modes; i++) 888 1.2.4.2 yamt drm_property_add_enum(dev->mode_config.tv_mode_property, i, 889 1.2.4.2 yamt i, modes[i]); 890 1.2.4.2 yamt 891 1.2.4.2 yamt dev->mode_config.tv_brightness_property = 892 1.2.4.2 yamt drm_property_create_range(dev, 0, "brightness", 0, 100); 893 1.2.4.2 yamt 894 1.2.4.2 yamt dev->mode_config.tv_contrast_property = 895 1.2.4.2 yamt drm_property_create_range(dev, 0, "contrast", 0, 100); 896 1.2.4.2 yamt 897 1.2.4.2 yamt dev->mode_config.tv_flicker_reduction_property = 898 1.2.4.2 yamt drm_property_create_range(dev, 0, "flicker reduction", 0, 100); 899 1.2.4.2 yamt 900 1.2.4.2 yamt dev->mode_config.tv_overscan_property = 901 1.2.4.2 yamt drm_property_create_range(dev, 0, "overscan", 0, 100); 902 1.2.4.2 yamt 903 1.2.4.2 yamt dev->mode_config.tv_saturation_property = 904 1.2.4.2 yamt drm_property_create_range(dev, 0, "saturation", 0, 100); 905 1.2.4.2 yamt 906 1.2.4.2 yamt dev->mode_config.tv_hue_property = 907 1.2.4.2 yamt drm_property_create_range(dev, 0, "hue", 0, 100); 908 1.2.4.2 yamt 909 1.2.4.2 yamt return 0; 910 1.2.4.2 yamt } 911 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_create_tv_properties); 912 1.2.4.2 yamt 913 1.2.4.2 yamt /** 914 1.2.4.2 yamt * drm_mode_create_scaling_mode_property - create scaling mode property 915 1.2.4.2 yamt * @dev: DRM device 916 1.2.4.2 yamt * 917 1.2.4.2 yamt * Called by a driver the first time it's needed, must be attached to desired 918 1.2.4.2 yamt * connectors. 919 1.2.4.2 yamt */ 920 1.2.4.2 yamt int drm_mode_create_scaling_mode_property(struct drm_device *dev) 921 1.2.4.2 yamt { 922 1.2.4.2 yamt struct drm_property *scaling_mode; 923 1.2.4.2 yamt 924 1.2.4.2 yamt if (dev->mode_config.scaling_mode_property) 925 1.2.4.2 yamt return 0; 926 1.2.4.2 yamt 927 1.2.4.2 yamt scaling_mode = 928 1.2.4.2 yamt drm_property_create_enum(dev, 0, "scaling mode", 929 1.2.4.2 yamt drm_scaling_mode_enum_list, 930 1.2.4.2 yamt ARRAY_SIZE(drm_scaling_mode_enum_list)); 931 1.2.4.2 yamt 932 1.2.4.2 yamt dev->mode_config.scaling_mode_property = scaling_mode; 933 1.2.4.2 yamt 934 1.2.4.2 yamt return 0; 935 1.2.4.2 yamt } 936 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_create_scaling_mode_property); 937 1.2.4.2 yamt 938 1.2.4.2 yamt /** 939 1.2.4.2 yamt * drm_mode_create_dithering_property - create dithering property 940 1.2.4.2 yamt * @dev: DRM device 941 1.2.4.2 yamt * 942 1.2.4.2 yamt * Called by a driver the first time it's needed, must be attached to desired 943 1.2.4.2 yamt * connectors. 944 1.2.4.2 yamt */ 945 1.2.4.2 yamt int drm_mode_create_dithering_property(struct drm_device *dev) 946 1.2.4.2 yamt { 947 1.2.4.2 yamt struct drm_property *dithering_mode; 948 1.2.4.2 yamt 949 1.2.4.2 yamt if (dev->mode_config.dithering_mode_property) 950 1.2.4.2 yamt return 0; 951 1.2.4.2 yamt 952 1.2.4.2 yamt dithering_mode = 953 1.2.4.2 yamt drm_property_create_enum(dev, 0, "dithering", 954 1.2.4.2 yamt drm_dithering_mode_enum_list, 955 1.2.4.2 yamt ARRAY_SIZE(drm_dithering_mode_enum_list)); 956 1.2.4.2 yamt dev->mode_config.dithering_mode_property = dithering_mode; 957 1.2.4.2 yamt 958 1.2.4.2 yamt return 0; 959 1.2.4.2 yamt } 960 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_create_dithering_property); 961 1.2.4.2 yamt 962 1.2.4.2 yamt /** 963 1.2.4.2 yamt * drm_mode_create_dirty_property - create dirty property 964 1.2.4.2 yamt * @dev: DRM device 965 1.2.4.2 yamt * 966 1.2.4.2 yamt * Called by a driver the first time it's needed, must be attached to desired 967 1.2.4.2 yamt * connectors. 968 1.2.4.2 yamt */ 969 1.2.4.2 yamt int drm_mode_create_dirty_info_property(struct drm_device *dev) 970 1.2.4.2 yamt { 971 1.2.4.2 yamt struct drm_property *dirty_info; 972 1.2.4.2 yamt 973 1.2.4.2 yamt if (dev->mode_config.dirty_info_property) 974 1.2.4.2 yamt return 0; 975 1.2.4.2 yamt 976 1.2.4.2 yamt dirty_info = 977 1.2.4.2 yamt drm_property_create_enum(dev, DRM_MODE_PROP_IMMUTABLE, 978 1.2.4.2 yamt "dirty", 979 1.2.4.2 yamt drm_dirty_info_enum_list, 980 1.2.4.2 yamt ARRAY_SIZE(drm_dirty_info_enum_list)); 981 1.2.4.2 yamt dev->mode_config.dirty_info_property = dirty_info; 982 1.2.4.2 yamt 983 1.2.4.2 yamt return 0; 984 1.2.4.2 yamt } 985 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_create_dirty_info_property); 986 1.2.4.2 yamt 987 1.2.4.2 yamt /** 988 1.2.4.2 yamt * drm_mode_config_init - initialize DRM mode_configuration structure 989 1.2.4.2 yamt * @dev: DRM device 990 1.2.4.2 yamt * 991 1.2.4.2 yamt * LOCKING: 992 1.2.4.2 yamt * None, should happen single threaded at init time. 993 1.2.4.2 yamt * 994 1.2.4.2 yamt * Initialize @dev's mode_config structure, used for tracking the graphics 995 1.2.4.2 yamt * configuration of @dev. 996 1.2.4.2 yamt */ 997 1.2.4.2 yamt void drm_mode_config_init(struct drm_device *dev) 998 1.2.4.2 yamt { 999 1.2.4.2 yamt #ifdef __NetBSD__ 1000 1.2.4.2 yamt linux_mutex_init(&dev->mode_config.mutex); 1001 1.2.4.2 yamt linux_mutex_init(&dev->mode_config.idr_mutex); 1002 1.2.4.2 yamt #else 1003 1.2.4.2 yamt mutex_init(&dev->mode_config.mutex); 1004 1.2.4.2 yamt mutex_init(&dev->mode_config.idr_mutex); 1005 1.2.4.2 yamt #endif 1006 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.fb_list); 1007 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.crtc_list); 1008 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.connector_list); 1009 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.encoder_list); 1010 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.property_list); 1011 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.property_blob_list); 1012 1.2.4.2 yamt INIT_LIST_HEAD(&dev->mode_config.plane_list); 1013 1.2.4.2 yamt idr_init(&dev->mode_config.crtc_idr); 1014 1.2.4.2 yamt 1015 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1016 1.2.4.2 yamt drm_mode_create_standard_connector_properties(dev); 1017 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1018 1.2.4.2 yamt 1019 1.2.4.2 yamt /* Just to be sure */ 1020 1.2.4.2 yamt dev->mode_config.num_fb = 0; 1021 1.2.4.2 yamt dev->mode_config.num_connector = 0; 1022 1.2.4.2 yamt dev->mode_config.num_crtc = 0; 1023 1.2.4.2 yamt dev->mode_config.num_encoder = 0; 1024 1.2.4.2 yamt } 1025 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_config_init); 1026 1.2.4.2 yamt 1027 1.2.4.2 yamt static int drm_mode_group_init(struct drm_device *dev, 1028 1.2.4.2 yamt struct drm_mode_group *group) 1029 1.2.4.2 yamt { 1030 1.2.4.2 yamt uint32_t total_objects = 0; 1031 1.2.4.2 yamt 1032 1.2.4.2 yamt total_objects += dev->mode_config.num_crtc; 1033 1.2.4.2 yamt total_objects += dev->mode_config.num_connector; 1034 1.2.4.2 yamt total_objects += dev->mode_config.num_encoder; 1035 1.2.4.2 yamt 1036 1.2.4.2 yamt group->id_list = kzalloc(total_objects * sizeof(uint32_t), GFP_KERNEL); 1037 1.2.4.2 yamt if (!group->id_list) 1038 1.2.4.2 yamt return -ENOMEM; 1039 1.2.4.2 yamt 1040 1.2.4.2 yamt group->num_crtcs = 0; 1041 1.2.4.2 yamt group->num_connectors = 0; 1042 1.2.4.2 yamt group->num_encoders = 0; 1043 1.2.4.2 yamt return 0; 1044 1.2.4.2 yamt } 1045 1.2.4.2 yamt 1046 1.2.4.2 yamt int drm_mode_group_init_legacy_group(struct drm_device *dev, 1047 1.2.4.2 yamt struct drm_mode_group *group) 1048 1.2.4.2 yamt { 1049 1.2.4.2 yamt struct drm_crtc *crtc; 1050 1.2.4.2 yamt struct drm_encoder *encoder; 1051 1.2.4.2 yamt struct drm_connector *connector; 1052 1.2.4.2 yamt int ret; 1053 1.2.4.2 yamt 1054 1.2.4.2 yamt if ((ret = drm_mode_group_init(dev, group))) 1055 1.2.4.2 yamt return ret; 1056 1.2.4.2 yamt 1057 1.2.4.2 yamt list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 1058 1.2.4.2 yamt group->id_list[group->num_crtcs++] = crtc->base.id; 1059 1.2.4.2 yamt 1060 1.2.4.2 yamt list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 1061 1.2.4.2 yamt group->id_list[group->num_crtcs + group->num_encoders++] = 1062 1.2.4.2 yamt encoder->base.id; 1063 1.2.4.2 yamt 1064 1.2.4.2 yamt list_for_each_entry(connector, &dev->mode_config.connector_list, head) 1065 1.2.4.2 yamt group->id_list[group->num_crtcs + group->num_encoders + 1066 1.2.4.2 yamt group->num_connectors++] = connector->base.id; 1067 1.2.4.2 yamt 1068 1.2.4.2 yamt return 0; 1069 1.2.4.2 yamt } 1070 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_group_init_legacy_group); 1071 1.2.4.2 yamt 1072 1.2.4.2 yamt /** 1073 1.2.4.2 yamt * drm_mode_config_cleanup - free up DRM mode_config info 1074 1.2.4.2 yamt * @dev: DRM device 1075 1.2.4.2 yamt * 1076 1.2.4.2 yamt * LOCKING: 1077 1.2.4.2 yamt * Caller must hold mode config lock. 1078 1.2.4.2 yamt * 1079 1.2.4.2 yamt * Free up all the connectors and CRTCs associated with this DRM device, then 1080 1.2.4.2 yamt * free up the framebuffers and associated buffer objects. 1081 1.2.4.2 yamt * 1082 1.2.4.2 yamt * FIXME: cleanup any dangling user buffer objects too 1083 1.2.4.2 yamt */ 1084 1.2.4.2 yamt void drm_mode_config_cleanup(struct drm_device *dev) 1085 1.2.4.2 yamt { 1086 1.2.4.2 yamt struct drm_connector *connector, *ot; 1087 1.2.4.2 yamt struct drm_crtc *crtc, *ct; 1088 1.2.4.2 yamt struct drm_encoder *encoder, *enct; 1089 1.2.4.2 yamt struct drm_framebuffer *fb, *fbt; 1090 1.2.4.2 yamt struct drm_property *property, *pt; 1091 1.2.4.2 yamt struct drm_plane *plane, *plt; 1092 1.2.4.2 yamt 1093 1.2.4.2 yamt list_for_each_entry_safe(encoder, enct, &dev->mode_config.encoder_list, 1094 1.2.4.2 yamt head) { 1095 1.2.4.2 yamt encoder->funcs->destroy(encoder); 1096 1.2.4.2 yamt } 1097 1.2.4.2 yamt 1098 1.2.4.2 yamt list_for_each_entry_safe(connector, ot, 1099 1.2.4.2 yamt &dev->mode_config.connector_list, head) { 1100 1.2.4.2 yamt connector->funcs->destroy(connector); 1101 1.2.4.2 yamt } 1102 1.2.4.2 yamt 1103 1.2.4.2 yamt list_for_each_entry_safe(property, pt, &dev->mode_config.property_list, 1104 1.2.4.2 yamt head) { 1105 1.2.4.2 yamt drm_property_destroy(dev, property); 1106 1.2.4.2 yamt } 1107 1.2.4.2 yamt 1108 1.2.4.2 yamt list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) { 1109 1.2.4.2 yamt drm_framebuffer_remove(fb); 1110 1.2.4.2 yamt } 1111 1.2.4.2 yamt 1112 1.2.4.2 yamt list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list, 1113 1.2.4.2 yamt head) { 1114 1.2.4.2 yamt plane->funcs->destroy(plane); 1115 1.2.4.2 yamt } 1116 1.2.4.2 yamt 1117 1.2.4.2 yamt list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) { 1118 1.2.4.2 yamt crtc->funcs->destroy(crtc); 1119 1.2.4.2 yamt } 1120 1.2.4.2 yamt 1121 1.2.4.2 yamt idr_remove_all(&dev->mode_config.crtc_idr); 1122 1.2.4.2 yamt idr_destroy(&dev->mode_config.crtc_idr); 1123 1.2.4.2 yamt 1124 1.2.4.2 yamt #ifdef __NetBSD__ 1125 1.2.4.2 yamt linux_mutex_destroy(&dev->mode_config.mutex); 1126 1.2.4.2 yamt linux_mutex_destroy(&dev->mode_config.idr_mutex); 1127 1.2.4.2 yamt #endif 1128 1.2.4.2 yamt } 1129 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_config_cleanup); 1130 1.2.4.2 yamt 1131 1.2.4.2 yamt /** 1132 1.2.4.2 yamt * drm_crtc_convert_to_umode - convert a drm_display_mode into a modeinfo 1133 1.2.4.2 yamt * @out: drm_mode_modeinfo struct to return to the user 1134 1.2.4.2 yamt * @in: drm_display_mode to use 1135 1.2.4.2 yamt * 1136 1.2.4.2 yamt * LOCKING: 1137 1.2.4.2 yamt * None. 1138 1.2.4.2 yamt * 1139 1.2.4.2 yamt * Convert a drm_display_mode into a drm_mode_modeinfo structure to return to 1140 1.2.4.2 yamt * the user. 1141 1.2.4.2 yamt */ 1142 1.2.4.2 yamt static void drm_crtc_convert_to_umode(struct drm_mode_modeinfo *out, 1143 1.2.4.2 yamt const struct drm_display_mode *in) 1144 1.2.4.2 yamt { 1145 1.2.4.2 yamt WARN(in->hdisplay > USHRT_MAX || in->hsync_start > USHRT_MAX || 1146 1.2.4.2 yamt in->hsync_end > USHRT_MAX || in->htotal > USHRT_MAX || 1147 1.2.4.2 yamt in->hskew > USHRT_MAX || in->vdisplay > USHRT_MAX || 1148 1.2.4.2 yamt in->vsync_start > USHRT_MAX || in->vsync_end > USHRT_MAX || 1149 1.2.4.2 yamt in->vtotal > USHRT_MAX || in->vscan > USHRT_MAX, 1150 1.2.4.2 yamt "timing values too large for mode info\n"); 1151 1.2.4.2 yamt 1152 1.2.4.2 yamt out->clock = in->clock; 1153 1.2.4.2 yamt out->hdisplay = in->hdisplay; 1154 1.2.4.2 yamt out->hsync_start = in->hsync_start; 1155 1.2.4.2 yamt out->hsync_end = in->hsync_end; 1156 1.2.4.2 yamt out->htotal = in->htotal; 1157 1.2.4.2 yamt out->hskew = in->hskew; 1158 1.2.4.2 yamt out->vdisplay = in->vdisplay; 1159 1.2.4.2 yamt out->vsync_start = in->vsync_start; 1160 1.2.4.2 yamt out->vsync_end = in->vsync_end; 1161 1.2.4.2 yamt out->vtotal = in->vtotal; 1162 1.2.4.2 yamt out->vscan = in->vscan; 1163 1.2.4.2 yamt out->vrefresh = in->vrefresh; 1164 1.2.4.2 yamt out->flags = in->flags; 1165 1.2.4.2 yamt out->type = in->type; 1166 1.2.4.2 yamt strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1167 1.2.4.2 yamt out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1168 1.2.4.2 yamt } 1169 1.2.4.2 yamt 1170 1.2.4.2 yamt /** 1171 1.2.4.2 yamt * drm_crtc_convert_to_umode - convert a modeinfo into a drm_display_mode 1172 1.2.4.2 yamt * @out: drm_display_mode to return to the user 1173 1.2.4.2 yamt * @in: drm_mode_modeinfo to use 1174 1.2.4.2 yamt * 1175 1.2.4.2 yamt * LOCKING: 1176 1.2.4.2 yamt * None. 1177 1.2.4.2 yamt * 1178 1.2.4.2 yamt * Convert a drm_mode_modeinfo into a drm_display_mode structure to return to 1179 1.2.4.2 yamt * the caller. 1180 1.2.4.2 yamt * 1181 1.2.4.2 yamt * RETURNS: 1182 1.2.4.2 yamt * Zero on success, errno on failure. 1183 1.2.4.2 yamt */ 1184 1.2.4.2 yamt static int drm_crtc_convert_umode(struct drm_display_mode *out, 1185 1.2.4.2 yamt const struct drm_mode_modeinfo *in) 1186 1.2.4.2 yamt { 1187 1.2.4.2 yamt if (in->clock > INT_MAX || in->vrefresh > INT_MAX) 1188 1.2.4.2 yamt return -ERANGE; 1189 1.2.4.2 yamt 1190 1.2.4.2 yamt out->clock = in->clock; 1191 1.2.4.2 yamt out->hdisplay = in->hdisplay; 1192 1.2.4.2 yamt out->hsync_start = in->hsync_start; 1193 1.2.4.2 yamt out->hsync_end = in->hsync_end; 1194 1.2.4.2 yamt out->htotal = in->htotal; 1195 1.2.4.2 yamt out->hskew = in->hskew; 1196 1.2.4.2 yamt out->vdisplay = in->vdisplay; 1197 1.2.4.2 yamt out->vsync_start = in->vsync_start; 1198 1.2.4.2 yamt out->vsync_end = in->vsync_end; 1199 1.2.4.2 yamt out->vtotal = in->vtotal; 1200 1.2.4.2 yamt out->vscan = in->vscan; 1201 1.2.4.2 yamt out->vrefresh = in->vrefresh; 1202 1.2.4.2 yamt out->flags = in->flags; 1203 1.2.4.2 yamt out->type = in->type; 1204 1.2.4.2 yamt strncpy(out->name, in->name, DRM_DISPLAY_MODE_LEN); 1205 1.2.4.2 yamt out->name[DRM_DISPLAY_MODE_LEN-1] = 0; 1206 1.2.4.2 yamt 1207 1.2.4.2 yamt return 0; 1208 1.2.4.2 yamt } 1209 1.2.4.2 yamt 1210 1.2.4.2 yamt /** 1211 1.2.4.2 yamt * drm_mode_getresources - get graphics configuration 1212 1.2.4.2 yamt * @inode: inode from the ioctl 1213 1.2.4.2 yamt * @filp: file * from the ioctl 1214 1.2.4.2 yamt * @cmd: cmd from ioctl 1215 1.2.4.2 yamt * @arg: arg from ioctl 1216 1.2.4.2 yamt * 1217 1.2.4.2 yamt * LOCKING: 1218 1.2.4.2 yamt * Takes mode config lock. 1219 1.2.4.2 yamt * 1220 1.2.4.2 yamt * Construct a set of configuration description structures and return 1221 1.2.4.2 yamt * them to the user, including CRTC, connector and framebuffer configuration. 1222 1.2.4.2 yamt * 1223 1.2.4.2 yamt * Called by the user via ioctl. 1224 1.2.4.2 yamt * 1225 1.2.4.2 yamt * RETURNS: 1226 1.2.4.2 yamt * Zero on success, errno on failure. 1227 1.2.4.2 yamt */ 1228 1.2.4.2 yamt int drm_mode_getresources(struct drm_device *dev, void *data, 1229 1.2.4.2 yamt struct drm_file *file_priv) 1230 1.2.4.2 yamt { 1231 1.2.4.2 yamt struct drm_mode_card_res *card_res = data; 1232 1.2.4.2 yamt struct list_head *lh; 1233 1.2.4.2 yamt struct drm_framebuffer *fb; 1234 1.2.4.2 yamt struct drm_connector *connector; 1235 1.2.4.2 yamt struct drm_crtc *crtc; 1236 1.2.4.2 yamt struct drm_encoder *encoder; 1237 1.2.4.2 yamt int ret = 0; 1238 1.2.4.2 yamt int connector_count = 0; 1239 1.2.4.2 yamt int crtc_count = 0; 1240 1.2.4.2 yamt int fb_count = 0; 1241 1.2.4.2 yamt int encoder_count = 0; 1242 1.2.4.2 yamt int copied = 0, i; 1243 1.2.4.2 yamt uint32_t __user *fb_id; 1244 1.2.4.2 yamt uint32_t __user *crtc_id; 1245 1.2.4.2 yamt uint32_t __user *connector_id; 1246 1.2.4.2 yamt uint32_t __user *encoder_id; 1247 1.2.4.2 yamt struct drm_mode_group *mode_group; 1248 1.2.4.2 yamt 1249 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1250 1.2.4.2 yamt return -EINVAL; 1251 1.2.4.2 yamt 1252 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1253 1.2.4.2 yamt 1254 1.2.4.2 yamt /* 1255 1.2.4.2 yamt * For the non-control nodes we need to limit the list of resources 1256 1.2.4.2 yamt * by IDs in the group list for this node 1257 1.2.4.2 yamt */ 1258 1.2.4.2 yamt list_for_each(lh, &file_priv->fbs) 1259 1.2.4.2 yamt fb_count++; 1260 1.2.4.2 yamt 1261 1.2.4.2 yamt mode_group = &file_priv->master->minor->mode_group; 1262 1.2.4.2 yamt if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1263 1.2.4.2 yamt 1264 1.2.4.2 yamt list_for_each(lh, &dev->mode_config.crtc_list) 1265 1.2.4.2 yamt crtc_count++; 1266 1.2.4.2 yamt 1267 1.2.4.2 yamt list_for_each(lh, &dev->mode_config.connector_list) 1268 1.2.4.2 yamt connector_count++; 1269 1.2.4.2 yamt 1270 1.2.4.2 yamt list_for_each(lh, &dev->mode_config.encoder_list) 1271 1.2.4.2 yamt encoder_count++; 1272 1.2.4.2 yamt } else { 1273 1.2.4.2 yamt 1274 1.2.4.2 yamt crtc_count = mode_group->num_crtcs; 1275 1.2.4.2 yamt connector_count = mode_group->num_connectors; 1276 1.2.4.2 yamt encoder_count = mode_group->num_encoders; 1277 1.2.4.2 yamt } 1278 1.2.4.2 yamt 1279 1.2.4.2 yamt card_res->max_height = dev->mode_config.max_height; 1280 1.2.4.2 yamt card_res->min_height = dev->mode_config.min_height; 1281 1.2.4.2 yamt card_res->max_width = dev->mode_config.max_width; 1282 1.2.4.2 yamt card_res->min_width = dev->mode_config.min_width; 1283 1.2.4.2 yamt 1284 1.2.4.2 yamt /* handle this in 4 parts */ 1285 1.2.4.2 yamt /* FBs */ 1286 1.2.4.2 yamt if (card_res->count_fbs >= fb_count) { 1287 1.2.4.2 yamt copied = 0; 1288 1.2.4.2 yamt fb_id = (uint32_t __user *)(unsigned long)card_res->fb_id_ptr; 1289 1.2.4.2 yamt list_for_each_entry(fb, &file_priv->fbs, filp_head) { 1290 1.2.4.2 yamt if (put_user(fb->base.id, fb_id + copied)) { 1291 1.2.4.2 yamt ret = -EFAULT; 1292 1.2.4.2 yamt goto out; 1293 1.2.4.2 yamt } 1294 1.2.4.2 yamt copied++; 1295 1.2.4.2 yamt } 1296 1.2.4.2 yamt } 1297 1.2.4.2 yamt card_res->count_fbs = fb_count; 1298 1.2.4.2 yamt 1299 1.2.4.2 yamt /* CRTCs */ 1300 1.2.4.2 yamt if (card_res->count_crtcs >= crtc_count) { 1301 1.2.4.2 yamt copied = 0; 1302 1.2.4.2 yamt crtc_id = (uint32_t __user *)(unsigned long)card_res->crtc_id_ptr; 1303 1.2.4.2 yamt if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1304 1.2.4.2 yamt list_for_each_entry(crtc, &dev->mode_config.crtc_list, 1305 1.2.4.2 yamt head) { 1306 1.2.4.2 yamt DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1307 1.2.4.2 yamt if (put_user(crtc->base.id, crtc_id + copied)) { 1308 1.2.4.2 yamt ret = -EFAULT; 1309 1.2.4.2 yamt goto out; 1310 1.2.4.2 yamt } 1311 1.2.4.2 yamt copied++; 1312 1.2.4.2 yamt } 1313 1.2.4.2 yamt } else { 1314 1.2.4.2 yamt for (i = 0; i < mode_group->num_crtcs; i++) { 1315 1.2.4.2 yamt if (put_user(mode_group->id_list[i], 1316 1.2.4.2 yamt crtc_id + copied)) { 1317 1.2.4.2 yamt ret = -EFAULT; 1318 1.2.4.2 yamt goto out; 1319 1.2.4.2 yamt } 1320 1.2.4.2 yamt copied++; 1321 1.2.4.2 yamt } 1322 1.2.4.2 yamt } 1323 1.2.4.2 yamt } 1324 1.2.4.2 yamt card_res->count_crtcs = crtc_count; 1325 1.2.4.2 yamt 1326 1.2.4.2 yamt /* Encoders */ 1327 1.2.4.2 yamt if (card_res->count_encoders >= encoder_count) { 1328 1.2.4.2 yamt copied = 0; 1329 1.2.4.2 yamt encoder_id = (uint32_t __user *)(unsigned long)card_res->encoder_id_ptr; 1330 1.2.4.2 yamt if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1331 1.2.4.2 yamt list_for_each_entry(encoder, 1332 1.2.4.2 yamt &dev->mode_config.encoder_list, 1333 1.2.4.2 yamt head) { 1334 1.2.4.2 yamt DRM_DEBUG_KMS("[ENCODER:%d:%s]\n", encoder->base.id, 1335 1.2.4.2 yamt drm_get_encoder_name(encoder)); 1336 1.2.4.2 yamt if (put_user(encoder->base.id, encoder_id + 1337 1.2.4.2 yamt copied)) { 1338 1.2.4.2 yamt ret = -EFAULT; 1339 1.2.4.2 yamt goto out; 1340 1.2.4.2 yamt } 1341 1.2.4.2 yamt copied++; 1342 1.2.4.2 yamt } 1343 1.2.4.2 yamt } else { 1344 1.2.4.2 yamt for (i = mode_group->num_crtcs; i < mode_group->num_crtcs + mode_group->num_encoders; i++) { 1345 1.2.4.2 yamt if (put_user(mode_group->id_list[i], 1346 1.2.4.2 yamt encoder_id + copied)) { 1347 1.2.4.2 yamt ret = -EFAULT; 1348 1.2.4.2 yamt goto out; 1349 1.2.4.2 yamt } 1350 1.2.4.2 yamt copied++; 1351 1.2.4.2 yamt } 1352 1.2.4.2 yamt 1353 1.2.4.2 yamt } 1354 1.2.4.2 yamt } 1355 1.2.4.2 yamt card_res->count_encoders = encoder_count; 1356 1.2.4.2 yamt 1357 1.2.4.2 yamt /* Connectors */ 1358 1.2.4.2 yamt if (card_res->count_connectors >= connector_count) { 1359 1.2.4.2 yamt copied = 0; 1360 1.2.4.2 yamt connector_id = (uint32_t __user *)(unsigned long)card_res->connector_id_ptr; 1361 1.2.4.2 yamt if (file_priv->master->minor->type == DRM_MINOR_CONTROL) { 1362 1.2.4.2 yamt list_for_each_entry(connector, 1363 1.2.4.2 yamt &dev->mode_config.connector_list, 1364 1.2.4.2 yamt head) { 1365 1.2.4.2 yamt DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 1366 1.2.4.2 yamt connector->base.id, 1367 1.2.4.2 yamt drm_get_connector_name(connector)); 1368 1.2.4.2 yamt if (put_user(connector->base.id, 1369 1.2.4.2 yamt connector_id + copied)) { 1370 1.2.4.2 yamt ret = -EFAULT; 1371 1.2.4.2 yamt goto out; 1372 1.2.4.2 yamt } 1373 1.2.4.2 yamt copied++; 1374 1.2.4.2 yamt } 1375 1.2.4.2 yamt } else { 1376 1.2.4.2 yamt int start = mode_group->num_crtcs + 1377 1.2.4.2 yamt mode_group->num_encoders; 1378 1.2.4.2 yamt for (i = start; i < start + mode_group->num_connectors; i++) { 1379 1.2.4.2 yamt if (put_user(mode_group->id_list[i], 1380 1.2.4.2 yamt connector_id + copied)) { 1381 1.2.4.2 yamt ret = -EFAULT; 1382 1.2.4.2 yamt goto out; 1383 1.2.4.2 yamt } 1384 1.2.4.2 yamt copied++; 1385 1.2.4.2 yamt } 1386 1.2.4.2 yamt } 1387 1.2.4.2 yamt } 1388 1.2.4.2 yamt card_res->count_connectors = connector_count; 1389 1.2.4.2 yamt 1390 1.2.4.2 yamt DRM_DEBUG_KMS("CRTC[%d] CONNECTORS[%d] ENCODERS[%d]\n", card_res->count_crtcs, 1391 1.2.4.2 yamt card_res->count_connectors, card_res->count_encoders); 1392 1.2.4.2 yamt 1393 1.2.4.2 yamt out: 1394 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1395 1.2.4.2 yamt return ret; 1396 1.2.4.2 yamt } 1397 1.2.4.2 yamt 1398 1.2.4.2 yamt /** 1399 1.2.4.2 yamt * drm_mode_getcrtc - get CRTC configuration 1400 1.2.4.2 yamt * @inode: inode from the ioctl 1401 1.2.4.2 yamt * @filp: file * from the ioctl 1402 1.2.4.2 yamt * @cmd: cmd from ioctl 1403 1.2.4.2 yamt * @arg: arg from ioctl 1404 1.2.4.2 yamt * 1405 1.2.4.2 yamt * LOCKING: 1406 1.2.4.2 yamt * Takes mode config lock. 1407 1.2.4.2 yamt * 1408 1.2.4.2 yamt * Construct a CRTC configuration structure to return to the user. 1409 1.2.4.2 yamt * 1410 1.2.4.2 yamt * Called by the user via ioctl. 1411 1.2.4.2 yamt * 1412 1.2.4.2 yamt * RETURNS: 1413 1.2.4.2 yamt * Zero on success, errno on failure. 1414 1.2.4.2 yamt */ 1415 1.2.4.2 yamt int drm_mode_getcrtc(struct drm_device *dev, 1416 1.2.4.2 yamt void *data, struct drm_file *file_priv) 1417 1.2.4.2 yamt { 1418 1.2.4.2 yamt struct drm_mode_crtc *crtc_resp = data; 1419 1.2.4.2 yamt struct drm_crtc *crtc; 1420 1.2.4.2 yamt struct drm_mode_object *obj; 1421 1.2.4.2 yamt int ret = 0; 1422 1.2.4.2 yamt 1423 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1424 1.2.4.2 yamt return -EINVAL; 1425 1.2.4.2 yamt 1426 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1427 1.2.4.2 yamt 1428 1.2.4.2 yamt obj = drm_mode_object_find(dev, crtc_resp->crtc_id, 1429 1.2.4.2 yamt DRM_MODE_OBJECT_CRTC); 1430 1.2.4.2 yamt if (!obj) { 1431 1.2.4.2 yamt ret = -EINVAL; 1432 1.2.4.2 yamt goto out; 1433 1.2.4.2 yamt } 1434 1.2.4.2 yamt crtc = obj_to_crtc(obj); 1435 1.2.4.2 yamt 1436 1.2.4.2 yamt crtc_resp->x = crtc->x; 1437 1.2.4.2 yamt crtc_resp->y = crtc->y; 1438 1.2.4.2 yamt crtc_resp->gamma_size = crtc->gamma_size; 1439 1.2.4.2 yamt if (crtc->fb) 1440 1.2.4.2 yamt crtc_resp->fb_id = crtc->fb->base.id; 1441 1.2.4.2 yamt else 1442 1.2.4.2 yamt crtc_resp->fb_id = 0; 1443 1.2.4.2 yamt 1444 1.2.4.2 yamt if (crtc->enabled) { 1445 1.2.4.2 yamt 1446 1.2.4.2 yamt drm_crtc_convert_to_umode(&crtc_resp->mode, &crtc->mode); 1447 1.2.4.2 yamt crtc_resp->mode_valid = 1; 1448 1.2.4.2 yamt 1449 1.2.4.2 yamt } else { 1450 1.2.4.2 yamt crtc_resp->mode_valid = 0; 1451 1.2.4.2 yamt } 1452 1.2.4.2 yamt 1453 1.2.4.2 yamt out: 1454 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1455 1.2.4.2 yamt return ret; 1456 1.2.4.2 yamt } 1457 1.2.4.2 yamt 1458 1.2.4.2 yamt /** 1459 1.2.4.2 yamt * drm_mode_getconnector - get connector configuration 1460 1.2.4.2 yamt * @inode: inode from the ioctl 1461 1.2.4.2 yamt * @filp: file * from the ioctl 1462 1.2.4.2 yamt * @cmd: cmd from ioctl 1463 1.2.4.2 yamt * @arg: arg from ioctl 1464 1.2.4.2 yamt * 1465 1.2.4.2 yamt * LOCKING: 1466 1.2.4.2 yamt * Takes mode config lock. 1467 1.2.4.2 yamt * 1468 1.2.4.2 yamt * Construct a connector configuration structure to return to the user. 1469 1.2.4.2 yamt * 1470 1.2.4.2 yamt * Called by the user via ioctl. 1471 1.2.4.2 yamt * 1472 1.2.4.2 yamt * RETURNS: 1473 1.2.4.2 yamt * Zero on success, errno on failure. 1474 1.2.4.2 yamt */ 1475 1.2.4.2 yamt int drm_mode_getconnector(struct drm_device *dev, void *data, 1476 1.2.4.2 yamt struct drm_file *file_priv) 1477 1.2.4.2 yamt { 1478 1.2.4.2 yamt struct drm_mode_get_connector *out_resp = data; 1479 1.2.4.2 yamt struct drm_mode_object *obj; 1480 1.2.4.2 yamt struct drm_connector *connector; 1481 1.2.4.2 yamt struct drm_display_mode *mode; 1482 1.2.4.2 yamt int mode_count = 0; 1483 1.2.4.2 yamt int props_count = 0; 1484 1.2.4.2 yamt int encoders_count = 0; 1485 1.2.4.2 yamt int ret = 0; 1486 1.2.4.2 yamt int copied = 0; 1487 1.2.4.2 yamt int i; 1488 1.2.4.2 yamt struct drm_mode_modeinfo u_mode; 1489 1.2.4.2 yamt struct drm_mode_modeinfo __user *mode_ptr; 1490 1.2.4.2 yamt uint32_t __user *prop_ptr; 1491 1.2.4.2 yamt uint64_t __user *prop_values; 1492 1.2.4.2 yamt uint32_t __user *encoder_ptr; 1493 1.2.4.2 yamt 1494 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1495 1.2.4.2 yamt return -EINVAL; 1496 1.2.4.2 yamt 1497 1.2.4.2 yamt memset(&u_mode, 0, sizeof(struct drm_mode_modeinfo)); 1498 1.2.4.2 yamt 1499 1.2.4.2 yamt DRM_DEBUG_KMS("[CONNECTOR:%d:?]\n", out_resp->connector_id); 1500 1.2.4.2 yamt 1501 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1502 1.2.4.2 yamt 1503 1.2.4.2 yamt obj = drm_mode_object_find(dev, out_resp->connector_id, 1504 1.2.4.2 yamt DRM_MODE_OBJECT_CONNECTOR); 1505 1.2.4.2 yamt if (!obj) { 1506 1.2.4.2 yamt ret = -EINVAL; 1507 1.2.4.2 yamt goto out; 1508 1.2.4.2 yamt } 1509 1.2.4.2 yamt connector = obj_to_connector(obj); 1510 1.2.4.2 yamt 1511 1.2.4.2 yamt props_count = connector->properties.count; 1512 1.2.4.2 yamt 1513 1.2.4.2 yamt for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1514 1.2.4.2 yamt if (connector->encoder_ids[i] != 0) { 1515 1.2.4.2 yamt encoders_count++; 1516 1.2.4.2 yamt } 1517 1.2.4.2 yamt } 1518 1.2.4.2 yamt 1519 1.2.4.2 yamt if (out_resp->count_modes == 0) { 1520 1.2.4.2 yamt connector->funcs->fill_modes(connector, 1521 1.2.4.2 yamt dev->mode_config.max_width, 1522 1.2.4.2 yamt dev->mode_config.max_height); 1523 1.2.4.2 yamt } 1524 1.2.4.2 yamt 1525 1.2.4.2 yamt /* delayed so we get modes regardless of pre-fill_modes state */ 1526 1.2.4.2 yamt list_for_each_entry(mode, &connector->modes, head) 1527 1.2.4.2 yamt mode_count++; 1528 1.2.4.2 yamt 1529 1.2.4.2 yamt out_resp->connector_id = connector->base.id; 1530 1.2.4.2 yamt out_resp->connector_type = connector->connector_type; 1531 1.2.4.2 yamt out_resp->connector_type_id = connector->connector_type_id; 1532 1.2.4.2 yamt out_resp->mm_width = connector->display_info.width_mm; 1533 1.2.4.2 yamt out_resp->mm_height = connector->display_info.height_mm; 1534 1.2.4.2 yamt out_resp->subpixel = connector->display_info.subpixel_order; 1535 1.2.4.2 yamt out_resp->connection = connector->status; 1536 1.2.4.2 yamt if (connector->encoder) 1537 1.2.4.2 yamt out_resp->encoder_id = connector->encoder->base.id; 1538 1.2.4.2 yamt else 1539 1.2.4.2 yamt out_resp->encoder_id = 0; 1540 1.2.4.2 yamt 1541 1.2.4.2 yamt /* 1542 1.2.4.2 yamt * This ioctl is called twice, once to determine how much space is 1543 1.2.4.2 yamt * needed, and the 2nd time to fill it. 1544 1.2.4.2 yamt */ 1545 1.2.4.2 yamt if ((out_resp->count_modes >= mode_count) && mode_count) { 1546 1.2.4.2 yamt copied = 0; 1547 1.2.4.2 yamt mode_ptr = (struct drm_mode_modeinfo __user *)(unsigned long)out_resp->modes_ptr; 1548 1.2.4.2 yamt list_for_each_entry(mode, &connector->modes, head) { 1549 1.2.4.2 yamt drm_crtc_convert_to_umode(&u_mode, mode); 1550 1.2.4.2 yamt if (copy_to_user(mode_ptr + copied, 1551 1.2.4.2 yamt &u_mode, sizeof(u_mode))) { 1552 1.2.4.2 yamt ret = -EFAULT; 1553 1.2.4.2 yamt goto out; 1554 1.2.4.2 yamt } 1555 1.2.4.2 yamt copied++; 1556 1.2.4.2 yamt } 1557 1.2.4.2 yamt } 1558 1.2.4.2 yamt out_resp->count_modes = mode_count; 1559 1.2.4.2 yamt 1560 1.2.4.2 yamt if ((out_resp->count_props >= props_count) && props_count) { 1561 1.2.4.2 yamt copied = 0; 1562 1.2.4.2 yamt prop_ptr = (uint32_t __user *)(unsigned long)(out_resp->props_ptr); 1563 1.2.4.2 yamt prop_values = (uint64_t __user *)(unsigned long)(out_resp->prop_values_ptr); 1564 1.2.4.2 yamt for (i = 0; i < connector->properties.count; i++) { 1565 1.2.4.2 yamt if (put_user(connector->properties.ids[i], 1566 1.2.4.2 yamt prop_ptr + copied)) { 1567 1.2.4.2 yamt ret = -EFAULT; 1568 1.2.4.2 yamt goto out; 1569 1.2.4.2 yamt } 1570 1.2.4.2 yamt 1571 1.2.4.2 yamt if (put_user(connector->properties.values[i], 1572 1.2.4.2 yamt prop_values + copied)) { 1573 1.2.4.2 yamt ret = -EFAULT; 1574 1.2.4.2 yamt goto out; 1575 1.2.4.2 yamt } 1576 1.2.4.2 yamt copied++; 1577 1.2.4.2 yamt } 1578 1.2.4.2 yamt } 1579 1.2.4.2 yamt out_resp->count_props = props_count; 1580 1.2.4.2 yamt 1581 1.2.4.2 yamt if ((out_resp->count_encoders >= encoders_count) && encoders_count) { 1582 1.2.4.2 yamt copied = 0; 1583 1.2.4.2 yamt encoder_ptr = (uint32_t __user *)(unsigned long)(out_resp->encoders_ptr); 1584 1.2.4.2 yamt for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 1585 1.2.4.2 yamt if (connector->encoder_ids[i] != 0) { 1586 1.2.4.2 yamt if (put_user(connector->encoder_ids[i], 1587 1.2.4.2 yamt encoder_ptr + copied)) { 1588 1.2.4.2 yamt ret = -EFAULT; 1589 1.2.4.2 yamt goto out; 1590 1.2.4.2 yamt } 1591 1.2.4.2 yamt copied++; 1592 1.2.4.2 yamt } 1593 1.2.4.2 yamt } 1594 1.2.4.2 yamt } 1595 1.2.4.2 yamt out_resp->count_encoders = encoders_count; 1596 1.2.4.2 yamt 1597 1.2.4.2 yamt out: 1598 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1599 1.2.4.2 yamt return ret; 1600 1.2.4.2 yamt } 1601 1.2.4.2 yamt 1602 1.2.4.2 yamt int drm_mode_getencoder(struct drm_device *dev, void *data, 1603 1.2.4.2 yamt struct drm_file *file_priv) 1604 1.2.4.2 yamt { 1605 1.2.4.2 yamt struct drm_mode_get_encoder *enc_resp = data; 1606 1.2.4.2 yamt struct drm_mode_object *obj; 1607 1.2.4.2 yamt struct drm_encoder *encoder; 1608 1.2.4.2 yamt int ret = 0; 1609 1.2.4.2 yamt 1610 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1611 1.2.4.2 yamt return -EINVAL; 1612 1.2.4.2 yamt 1613 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1614 1.2.4.2 yamt obj = drm_mode_object_find(dev, enc_resp->encoder_id, 1615 1.2.4.2 yamt DRM_MODE_OBJECT_ENCODER); 1616 1.2.4.2 yamt if (!obj) { 1617 1.2.4.2 yamt ret = -EINVAL; 1618 1.2.4.2 yamt goto out; 1619 1.2.4.2 yamt } 1620 1.2.4.2 yamt encoder = obj_to_encoder(obj); 1621 1.2.4.2 yamt 1622 1.2.4.2 yamt if (encoder->crtc) 1623 1.2.4.2 yamt enc_resp->crtc_id = encoder->crtc->base.id; 1624 1.2.4.2 yamt else 1625 1.2.4.2 yamt enc_resp->crtc_id = 0; 1626 1.2.4.2 yamt enc_resp->encoder_type = encoder->encoder_type; 1627 1.2.4.2 yamt enc_resp->encoder_id = encoder->base.id; 1628 1.2.4.2 yamt enc_resp->possible_crtcs = encoder->possible_crtcs; 1629 1.2.4.2 yamt enc_resp->possible_clones = encoder->possible_clones; 1630 1.2.4.2 yamt 1631 1.2.4.2 yamt out: 1632 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1633 1.2.4.2 yamt return ret; 1634 1.2.4.2 yamt } 1635 1.2.4.2 yamt 1636 1.2.4.2 yamt /** 1637 1.2.4.2 yamt * drm_mode_getplane_res - get plane info 1638 1.2.4.2 yamt * @dev: DRM device 1639 1.2.4.2 yamt * @data: ioctl data 1640 1.2.4.2 yamt * @file_priv: DRM file info 1641 1.2.4.2 yamt * 1642 1.2.4.2 yamt * LOCKING: 1643 1.2.4.2 yamt * Takes mode config lock. 1644 1.2.4.2 yamt * 1645 1.2.4.2 yamt * Return an plane count and set of IDs. 1646 1.2.4.2 yamt */ 1647 1.2.4.2 yamt int drm_mode_getplane_res(struct drm_device *dev, void *data, 1648 1.2.4.2 yamt struct drm_file *file_priv) 1649 1.2.4.2 yamt { 1650 1.2.4.2 yamt struct drm_mode_get_plane_res *plane_resp = data; 1651 1.2.4.2 yamt struct drm_mode_config *config; 1652 1.2.4.2 yamt struct drm_plane *plane; 1653 1.2.4.2 yamt uint32_t __user *plane_ptr; 1654 1.2.4.2 yamt int copied = 0, ret = 0; 1655 1.2.4.2 yamt 1656 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1657 1.2.4.2 yamt return -EINVAL; 1658 1.2.4.2 yamt 1659 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1660 1.2.4.2 yamt config = &dev->mode_config; 1661 1.2.4.2 yamt 1662 1.2.4.2 yamt /* 1663 1.2.4.2 yamt * This ioctl is called twice, once to determine how much space is 1664 1.2.4.2 yamt * needed, and the 2nd time to fill it. 1665 1.2.4.2 yamt */ 1666 1.2.4.2 yamt if (config->num_plane && 1667 1.2.4.2 yamt (plane_resp->count_planes >= config->num_plane)) { 1668 1.2.4.2 yamt plane_ptr = (uint32_t __user *)(unsigned long)plane_resp->plane_id_ptr; 1669 1.2.4.2 yamt 1670 1.2.4.2 yamt list_for_each_entry(plane, &config->plane_list, head) { 1671 1.2.4.2 yamt if (put_user(plane->base.id, plane_ptr + copied)) { 1672 1.2.4.2 yamt ret = -EFAULT; 1673 1.2.4.2 yamt goto out; 1674 1.2.4.2 yamt } 1675 1.2.4.2 yamt copied++; 1676 1.2.4.2 yamt } 1677 1.2.4.2 yamt } 1678 1.2.4.2 yamt plane_resp->count_planes = config->num_plane; 1679 1.2.4.2 yamt 1680 1.2.4.2 yamt out: 1681 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1682 1.2.4.2 yamt return ret; 1683 1.2.4.2 yamt } 1684 1.2.4.2 yamt 1685 1.2.4.2 yamt /** 1686 1.2.4.2 yamt * drm_mode_getplane - get plane info 1687 1.2.4.2 yamt * @dev: DRM device 1688 1.2.4.2 yamt * @data: ioctl data 1689 1.2.4.2 yamt * @file_priv: DRM file info 1690 1.2.4.2 yamt * 1691 1.2.4.2 yamt * LOCKING: 1692 1.2.4.2 yamt * Takes mode config lock. 1693 1.2.4.2 yamt * 1694 1.2.4.2 yamt * Return plane info, including formats supported, gamma size, any 1695 1.2.4.2 yamt * current fb, etc. 1696 1.2.4.2 yamt */ 1697 1.2.4.2 yamt int drm_mode_getplane(struct drm_device *dev, void *data, 1698 1.2.4.2 yamt struct drm_file *file_priv) 1699 1.2.4.2 yamt { 1700 1.2.4.2 yamt struct drm_mode_get_plane *plane_resp = data; 1701 1.2.4.2 yamt struct drm_mode_object *obj; 1702 1.2.4.2 yamt struct drm_plane *plane; 1703 1.2.4.2 yamt uint32_t __user *format_ptr; 1704 1.2.4.2 yamt int ret = 0; 1705 1.2.4.2 yamt 1706 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1707 1.2.4.2 yamt return -EINVAL; 1708 1.2.4.2 yamt 1709 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1710 1.2.4.2 yamt obj = drm_mode_object_find(dev, plane_resp->plane_id, 1711 1.2.4.2 yamt DRM_MODE_OBJECT_PLANE); 1712 1.2.4.2 yamt if (!obj) { 1713 1.2.4.2 yamt ret = -ENOENT; 1714 1.2.4.2 yamt goto out; 1715 1.2.4.2 yamt } 1716 1.2.4.2 yamt plane = obj_to_plane(obj); 1717 1.2.4.2 yamt 1718 1.2.4.2 yamt if (plane->crtc) 1719 1.2.4.2 yamt plane_resp->crtc_id = plane->crtc->base.id; 1720 1.2.4.2 yamt else 1721 1.2.4.2 yamt plane_resp->crtc_id = 0; 1722 1.2.4.2 yamt 1723 1.2.4.2 yamt if (plane->fb) 1724 1.2.4.2 yamt plane_resp->fb_id = plane->fb->base.id; 1725 1.2.4.2 yamt else 1726 1.2.4.2 yamt plane_resp->fb_id = 0; 1727 1.2.4.2 yamt 1728 1.2.4.2 yamt plane_resp->plane_id = plane->base.id; 1729 1.2.4.2 yamt plane_resp->possible_crtcs = plane->possible_crtcs; 1730 1.2.4.2 yamt plane_resp->gamma_size = plane->gamma_size; 1731 1.2.4.2 yamt 1732 1.2.4.2 yamt /* 1733 1.2.4.2 yamt * This ioctl is called twice, once to determine how much space is 1734 1.2.4.2 yamt * needed, and the 2nd time to fill it. 1735 1.2.4.2 yamt */ 1736 1.2.4.2 yamt if (plane->format_count && 1737 1.2.4.2 yamt (plane_resp->count_format_types >= plane->format_count)) { 1738 1.2.4.2 yamt format_ptr = (uint32_t __user *)(unsigned long)plane_resp->format_type_ptr; 1739 1.2.4.2 yamt if (copy_to_user(format_ptr, 1740 1.2.4.2 yamt plane->format_types, 1741 1.2.4.2 yamt sizeof(uint32_t) * plane->format_count)) { 1742 1.2.4.2 yamt ret = -EFAULT; 1743 1.2.4.2 yamt goto out; 1744 1.2.4.2 yamt } 1745 1.2.4.2 yamt } 1746 1.2.4.2 yamt plane_resp->count_format_types = plane->format_count; 1747 1.2.4.2 yamt 1748 1.2.4.2 yamt out: 1749 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1750 1.2.4.2 yamt return ret; 1751 1.2.4.2 yamt } 1752 1.2.4.2 yamt 1753 1.2.4.2 yamt /** 1754 1.2.4.2 yamt * drm_mode_setplane - set up or tear down an plane 1755 1.2.4.2 yamt * @dev: DRM device 1756 1.2.4.2 yamt * @data: ioctl data* 1757 1.2.4.2 yamt * @file_prive: DRM file info 1758 1.2.4.2 yamt * 1759 1.2.4.2 yamt * LOCKING: 1760 1.2.4.2 yamt * Takes mode config lock. 1761 1.2.4.2 yamt * 1762 1.2.4.2 yamt * Set plane info, including placement, fb, scaling, and other factors. 1763 1.2.4.2 yamt * Or pass a NULL fb to disable. 1764 1.2.4.2 yamt */ 1765 1.2.4.2 yamt int drm_mode_setplane(struct drm_device *dev, void *data, 1766 1.2.4.2 yamt struct drm_file *file_priv) 1767 1.2.4.2 yamt { 1768 1.2.4.2 yamt struct drm_mode_set_plane *plane_req = data; 1769 1.2.4.2 yamt struct drm_mode_object *obj; 1770 1.2.4.2 yamt struct drm_plane *plane; 1771 1.2.4.2 yamt struct drm_crtc *crtc; 1772 1.2.4.2 yamt struct drm_framebuffer *fb; 1773 1.2.4.2 yamt int ret = 0; 1774 1.2.4.2 yamt unsigned int fb_width, fb_height; 1775 1.2.4.2 yamt int i; 1776 1.2.4.2 yamt 1777 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1778 1.2.4.2 yamt return -EINVAL; 1779 1.2.4.2 yamt 1780 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1781 1.2.4.2 yamt 1782 1.2.4.2 yamt /* 1783 1.2.4.2 yamt * First, find the plane, crtc, and fb objects. If not available, 1784 1.2.4.2 yamt * we don't bother to call the driver. 1785 1.2.4.2 yamt */ 1786 1.2.4.2 yamt obj = drm_mode_object_find(dev, plane_req->plane_id, 1787 1.2.4.2 yamt DRM_MODE_OBJECT_PLANE); 1788 1.2.4.2 yamt if (!obj) { 1789 1.2.4.2 yamt DRM_DEBUG_KMS("Unknown plane ID %d\n", 1790 1.2.4.2 yamt plane_req->plane_id); 1791 1.2.4.2 yamt ret = -ENOENT; 1792 1.2.4.2 yamt goto out; 1793 1.2.4.2 yamt } 1794 1.2.4.2 yamt plane = obj_to_plane(obj); 1795 1.2.4.2 yamt 1796 1.2.4.2 yamt /* No fb means shut it down */ 1797 1.2.4.2 yamt if (!plane_req->fb_id) { 1798 1.2.4.2 yamt plane->funcs->disable_plane(plane); 1799 1.2.4.2 yamt plane->crtc = NULL; 1800 1.2.4.2 yamt plane->fb = NULL; 1801 1.2.4.2 yamt goto out; 1802 1.2.4.2 yamt } 1803 1.2.4.2 yamt 1804 1.2.4.2 yamt obj = drm_mode_object_find(dev, plane_req->crtc_id, 1805 1.2.4.2 yamt DRM_MODE_OBJECT_CRTC); 1806 1.2.4.2 yamt if (!obj) { 1807 1.2.4.2 yamt DRM_DEBUG_KMS("Unknown crtc ID %d\n", 1808 1.2.4.2 yamt plane_req->crtc_id); 1809 1.2.4.2 yamt ret = -ENOENT; 1810 1.2.4.2 yamt goto out; 1811 1.2.4.2 yamt } 1812 1.2.4.2 yamt crtc = obj_to_crtc(obj); 1813 1.2.4.2 yamt 1814 1.2.4.2 yamt obj = drm_mode_object_find(dev, plane_req->fb_id, 1815 1.2.4.2 yamt DRM_MODE_OBJECT_FB); 1816 1.2.4.2 yamt if (!obj) { 1817 1.2.4.2 yamt DRM_DEBUG_KMS("Unknown framebuffer ID %d\n", 1818 1.2.4.2 yamt plane_req->fb_id); 1819 1.2.4.2 yamt ret = -ENOENT; 1820 1.2.4.2 yamt goto out; 1821 1.2.4.2 yamt } 1822 1.2.4.2 yamt fb = obj_to_fb(obj); 1823 1.2.4.2 yamt 1824 1.2.4.2 yamt /* Check whether this plane supports the fb pixel format. */ 1825 1.2.4.2 yamt for (i = 0; i < plane->format_count; i++) 1826 1.2.4.2 yamt if (fb->pixel_format == plane->format_types[i]) 1827 1.2.4.2 yamt break; 1828 1.2.4.2 yamt if (i == plane->format_count) { 1829 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid pixel format 0x%08x\n", fb->pixel_format); 1830 1.2.4.2 yamt ret = -EINVAL; 1831 1.2.4.2 yamt goto out; 1832 1.2.4.2 yamt } 1833 1.2.4.2 yamt 1834 1.2.4.2 yamt fb_width = fb->width << 16; 1835 1.2.4.2 yamt fb_height = fb->height << 16; 1836 1.2.4.2 yamt 1837 1.2.4.2 yamt /* Make sure source coordinates are inside the fb. */ 1838 1.2.4.2 yamt if (plane_req->src_w > fb_width || 1839 1.2.4.2 yamt plane_req->src_x > fb_width - plane_req->src_w || 1840 1.2.4.2 yamt plane_req->src_h > fb_height || 1841 1.2.4.2 yamt plane_req->src_y > fb_height - plane_req->src_h) { 1842 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid source coordinates " 1843 1.2.4.2 yamt "%u.%06ux%u.%06u+%u.%06u+%u.%06u\n", 1844 1.2.4.2 yamt plane_req->src_w >> 16, 1845 1.2.4.2 yamt ((plane_req->src_w & 0xffff) * 15625) >> 10, 1846 1.2.4.2 yamt plane_req->src_h >> 16, 1847 1.2.4.2 yamt ((plane_req->src_h & 0xffff) * 15625) >> 10, 1848 1.2.4.2 yamt plane_req->src_x >> 16, 1849 1.2.4.2 yamt ((plane_req->src_x & 0xffff) * 15625) >> 10, 1850 1.2.4.2 yamt plane_req->src_y >> 16, 1851 1.2.4.2 yamt ((plane_req->src_y & 0xffff) * 15625) >> 10); 1852 1.2.4.2 yamt ret = -ENOSPC; 1853 1.2.4.2 yamt goto out; 1854 1.2.4.2 yamt } 1855 1.2.4.2 yamt 1856 1.2.4.2 yamt /* Give drivers some help against integer overflows */ 1857 1.2.4.2 yamt if (plane_req->crtc_w > INT_MAX || 1858 1.2.4.2 yamt plane_req->crtc_x > INT_MAX - (int32_t) plane_req->crtc_w || 1859 1.2.4.2 yamt plane_req->crtc_h > INT_MAX || 1860 1.2.4.2 yamt plane_req->crtc_y > INT_MAX - (int32_t) plane_req->crtc_h) { 1861 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid CRTC coordinates %ux%u+%d+%d\n", 1862 1.2.4.2 yamt plane_req->crtc_w, plane_req->crtc_h, 1863 1.2.4.2 yamt plane_req->crtc_x, plane_req->crtc_y); 1864 1.2.4.2 yamt ret = -ERANGE; 1865 1.2.4.2 yamt goto out; 1866 1.2.4.2 yamt } 1867 1.2.4.2 yamt 1868 1.2.4.2 yamt ret = plane->funcs->update_plane(plane, crtc, fb, 1869 1.2.4.2 yamt plane_req->crtc_x, plane_req->crtc_y, 1870 1.2.4.2 yamt plane_req->crtc_w, plane_req->crtc_h, 1871 1.2.4.2 yamt plane_req->src_x, plane_req->src_y, 1872 1.2.4.2 yamt plane_req->src_w, plane_req->src_h); 1873 1.2.4.2 yamt if (!ret) { 1874 1.2.4.2 yamt plane->crtc = crtc; 1875 1.2.4.2 yamt plane->fb = fb; 1876 1.2.4.2 yamt } 1877 1.2.4.2 yamt 1878 1.2.4.2 yamt out: 1879 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 1880 1.2.4.2 yamt 1881 1.2.4.2 yamt return ret; 1882 1.2.4.2 yamt } 1883 1.2.4.2 yamt 1884 1.2.4.2 yamt /** 1885 1.2.4.2 yamt * drm_mode_setcrtc - set CRTC configuration 1886 1.2.4.2 yamt * @inode: inode from the ioctl 1887 1.2.4.2 yamt * @filp: file * from the ioctl 1888 1.2.4.2 yamt * @cmd: cmd from ioctl 1889 1.2.4.2 yamt * @arg: arg from ioctl 1890 1.2.4.2 yamt * 1891 1.2.4.2 yamt * LOCKING: 1892 1.2.4.2 yamt * Takes mode config lock. 1893 1.2.4.2 yamt * 1894 1.2.4.2 yamt * Build a new CRTC configuration based on user request. 1895 1.2.4.2 yamt * 1896 1.2.4.2 yamt * Called by the user via ioctl. 1897 1.2.4.2 yamt * 1898 1.2.4.2 yamt * RETURNS: 1899 1.2.4.2 yamt * Zero on success, errno on failure. 1900 1.2.4.2 yamt */ 1901 1.2.4.2 yamt int drm_mode_setcrtc(struct drm_device *dev, void *data, 1902 1.2.4.2 yamt struct drm_file *file_priv) 1903 1.2.4.2 yamt { 1904 1.2.4.2 yamt struct drm_mode_config *config = &dev->mode_config; 1905 1.2.4.2 yamt struct drm_mode_crtc *crtc_req = data; 1906 1.2.4.2 yamt struct drm_mode_object *obj; 1907 1.2.4.2 yamt struct drm_crtc *crtc; 1908 1.2.4.2 yamt struct drm_connector **connector_set = NULL, *connector; 1909 1.2.4.2 yamt struct drm_framebuffer *fb = NULL; 1910 1.2.4.2 yamt struct drm_display_mode *mode = NULL; 1911 1.2.4.2 yamt struct drm_mode_set set; 1912 1.2.4.2 yamt uint32_t __user *set_connectors_ptr; 1913 1.2.4.2 yamt int ret; 1914 1.2.4.2 yamt int i; 1915 1.2.4.2 yamt 1916 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 1917 1.2.4.2 yamt return -EINVAL; 1918 1.2.4.2 yamt 1919 1.2.4.2 yamt /* For some reason crtc x/y offsets are signed internally. */ 1920 1.2.4.2 yamt if (crtc_req->x > INT_MAX || crtc_req->y > INT_MAX) 1921 1.2.4.2 yamt return -ERANGE; 1922 1.2.4.2 yamt 1923 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 1924 1.2.4.2 yamt obj = drm_mode_object_find(dev, crtc_req->crtc_id, 1925 1.2.4.2 yamt DRM_MODE_OBJECT_CRTC); 1926 1.2.4.2 yamt if (!obj) { 1927 1.2.4.2 yamt DRM_DEBUG_KMS("Unknown CRTC ID %d\n", crtc_req->crtc_id); 1928 1.2.4.2 yamt ret = -EINVAL; 1929 1.2.4.2 yamt goto out; 1930 1.2.4.2 yamt } 1931 1.2.4.2 yamt crtc = obj_to_crtc(obj); 1932 1.2.4.2 yamt DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id); 1933 1.2.4.2 yamt 1934 1.2.4.2 yamt if (crtc_req->mode_valid) { 1935 1.2.4.2 yamt int hdisplay, vdisplay; 1936 1.2.4.2 yamt /* If we have a mode we need a framebuffer. */ 1937 1.2.4.2 yamt /* If we pass -1, set the mode with the currently bound fb */ 1938 1.2.4.2 yamt if (crtc_req->fb_id == -1) { 1939 1.2.4.2 yamt if (!crtc->fb) { 1940 1.2.4.2 yamt DRM_DEBUG_KMS("CRTC doesn't have current FB\n"); 1941 1.2.4.2 yamt ret = -EINVAL; 1942 1.2.4.2 yamt goto out; 1943 1.2.4.2 yamt } 1944 1.2.4.2 yamt fb = crtc->fb; 1945 1.2.4.2 yamt } else { 1946 1.2.4.2 yamt obj = drm_mode_object_find(dev, crtc_req->fb_id, 1947 1.2.4.2 yamt DRM_MODE_OBJECT_FB); 1948 1.2.4.2 yamt if (!obj) { 1949 1.2.4.2 yamt DRM_DEBUG_KMS("Unknown FB ID%d\n", 1950 1.2.4.2 yamt crtc_req->fb_id); 1951 1.2.4.2 yamt ret = -EINVAL; 1952 1.2.4.2 yamt goto out; 1953 1.2.4.2 yamt } 1954 1.2.4.2 yamt fb = obj_to_fb(obj); 1955 1.2.4.2 yamt } 1956 1.2.4.2 yamt 1957 1.2.4.2 yamt mode = drm_mode_create(dev); 1958 1.2.4.2 yamt if (!mode) { 1959 1.2.4.2 yamt ret = -ENOMEM; 1960 1.2.4.2 yamt goto out; 1961 1.2.4.2 yamt } 1962 1.2.4.2 yamt 1963 1.2.4.2 yamt ret = drm_crtc_convert_umode(mode, &crtc_req->mode); 1964 1.2.4.2 yamt if (ret) { 1965 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid mode\n"); 1966 1.2.4.2 yamt goto out; 1967 1.2.4.2 yamt } 1968 1.2.4.2 yamt 1969 1.2.4.2 yamt drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V); 1970 1.2.4.2 yamt 1971 1.2.4.2 yamt hdisplay = mode->hdisplay; 1972 1.2.4.2 yamt vdisplay = mode->vdisplay; 1973 1.2.4.2 yamt 1974 1.2.4.2 yamt if (crtc->invert_dimensions) 1975 1.2.4.2 yamt swap(hdisplay, vdisplay); 1976 1.2.4.2 yamt 1977 1.2.4.2 yamt if (hdisplay > fb->width || 1978 1.2.4.2 yamt vdisplay > fb->height || 1979 1.2.4.2 yamt crtc_req->x > fb->width - hdisplay || 1980 1.2.4.2 yamt crtc_req->y > fb->height - vdisplay) { 1981 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 1982 1.2.4.2 yamt fb->width, fb->height, 1983 1.2.4.2 yamt hdisplay, vdisplay, crtc_req->x, crtc_req->y, 1984 1.2.4.2 yamt crtc->invert_dimensions ? " (inverted)" : ""); 1985 1.2.4.2 yamt ret = -ENOSPC; 1986 1.2.4.2 yamt goto out; 1987 1.2.4.2 yamt } 1988 1.2.4.2 yamt } 1989 1.2.4.2 yamt 1990 1.2.4.2 yamt if (crtc_req->count_connectors == 0 && mode) { 1991 1.2.4.2 yamt DRM_DEBUG_KMS("Count connectors is 0 but mode set\n"); 1992 1.2.4.2 yamt ret = -EINVAL; 1993 1.2.4.2 yamt goto out; 1994 1.2.4.2 yamt } 1995 1.2.4.2 yamt 1996 1.2.4.2 yamt if (crtc_req->count_connectors > 0 && (!mode || !fb)) { 1997 1.2.4.2 yamt DRM_DEBUG_KMS("Count connectors is %d but no mode or fb set\n", 1998 1.2.4.2 yamt crtc_req->count_connectors); 1999 1.2.4.2 yamt ret = -EINVAL; 2000 1.2.4.2 yamt goto out; 2001 1.2.4.2 yamt } 2002 1.2.4.2 yamt 2003 1.2.4.2 yamt if (crtc_req->count_connectors > 0) { 2004 1.2.4.2 yamt u32 out_id; 2005 1.2.4.2 yamt 2006 1.2.4.2 yamt /* Avoid unbounded kernel memory allocation */ 2007 1.2.4.2 yamt if (crtc_req->count_connectors > config->num_connector) { 2008 1.2.4.2 yamt ret = -EINVAL; 2009 1.2.4.2 yamt goto out; 2010 1.2.4.2 yamt } 2011 1.2.4.2 yamt 2012 1.2.4.2 yamt connector_set = kmalloc(crtc_req->count_connectors * 2013 1.2.4.2 yamt sizeof(struct drm_connector *), 2014 1.2.4.2 yamt GFP_KERNEL); 2015 1.2.4.2 yamt if (!connector_set) { 2016 1.2.4.2 yamt ret = -ENOMEM; 2017 1.2.4.2 yamt goto out; 2018 1.2.4.2 yamt } 2019 1.2.4.2 yamt 2020 1.2.4.2 yamt for (i = 0; i < crtc_req->count_connectors; i++) { 2021 1.2.4.2 yamt set_connectors_ptr = (uint32_t __user *)(unsigned long)crtc_req->set_connectors_ptr; 2022 1.2.4.2 yamt if (get_user(out_id, &set_connectors_ptr[i])) { 2023 1.2.4.2 yamt ret = -EFAULT; 2024 1.2.4.2 yamt goto out; 2025 1.2.4.2 yamt } 2026 1.2.4.2 yamt 2027 1.2.4.2 yamt obj = drm_mode_object_find(dev, out_id, 2028 1.2.4.2 yamt DRM_MODE_OBJECT_CONNECTOR); 2029 1.2.4.2 yamt if (!obj) { 2030 1.2.4.2 yamt DRM_DEBUG_KMS("Connector id %d unknown\n", 2031 1.2.4.2 yamt out_id); 2032 1.2.4.2 yamt ret = -EINVAL; 2033 1.2.4.2 yamt goto out; 2034 1.2.4.2 yamt } 2035 1.2.4.2 yamt connector = obj_to_connector(obj); 2036 1.2.4.2 yamt DRM_DEBUG_KMS("[CONNECTOR:%d:%s]\n", 2037 1.2.4.2 yamt connector->base.id, 2038 1.2.4.2 yamt drm_get_connector_name(connector)); 2039 1.2.4.2 yamt 2040 1.2.4.2 yamt connector_set[i] = connector; 2041 1.2.4.2 yamt } 2042 1.2.4.2 yamt } 2043 1.2.4.2 yamt 2044 1.2.4.2 yamt set.crtc = crtc; 2045 1.2.4.2 yamt set.x = crtc_req->x; 2046 1.2.4.2 yamt set.y = crtc_req->y; 2047 1.2.4.2 yamt set.mode = mode; 2048 1.2.4.2 yamt set.connectors = connector_set; 2049 1.2.4.2 yamt set.num_connectors = crtc_req->count_connectors; 2050 1.2.4.2 yamt set.fb = fb; 2051 1.2.4.2 yamt ret = crtc->funcs->set_config(&set); 2052 1.2.4.2 yamt 2053 1.2.4.2 yamt out: 2054 1.2.4.2 yamt kfree(connector_set); 2055 1.2.4.2 yamt drm_mode_destroy(dev, mode); 2056 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2057 1.2.4.2 yamt return ret; 2058 1.2.4.2 yamt } 2059 1.2.4.2 yamt 2060 1.2.4.2 yamt int drm_mode_cursor_ioctl(struct drm_device *dev, 2061 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2062 1.2.4.2 yamt { 2063 1.2.4.2 yamt struct drm_mode_cursor *req = data; 2064 1.2.4.2 yamt struct drm_mode_object *obj; 2065 1.2.4.2 yamt struct drm_crtc *crtc; 2066 1.2.4.2 yamt int ret = 0; 2067 1.2.4.2 yamt 2068 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2069 1.2.4.2 yamt return -EINVAL; 2070 1.2.4.2 yamt 2071 1.2.4.2 yamt if (!req->flags || (~DRM_MODE_CURSOR_FLAGS & req->flags)) 2072 1.2.4.2 yamt return -EINVAL; 2073 1.2.4.2 yamt 2074 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2075 1.2.4.2 yamt obj = drm_mode_object_find(dev, req->crtc_id, DRM_MODE_OBJECT_CRTC); 2076 1.2.4.2 yamt if (!obj) { 2077 1.2.4.2 yamt DRM_DEBUG_KMS("Unknown CRTC ID %d\n", req->crtc_id); 2078 1.2.4.2 yamt ret = -EINVAL; 2079 1.2.4.2 yamt goto out; 2080 1.2.4.2 yamt } 2081 1.2.4.2 yamt crtc = obj_to_crtc(obj); 2082 1.2.4.2 yamt 2083 1.2.4.2 yamt if (req->flags & DRM_MODE_CURSOR_BO) { 2084 1.2.4.2 yamt if (!crtc->funcs->cursor_set) { 2085 1.2.4.2 yamt ret = -ENXIO; 2086 1.2.4.2 yamt goto out; 2087 1.2.4.2 yamt } 2088 1.2.4.2 yamt /* Turns off the cursor if handle is 0 */ 2089 1.2.4.2 yamt ret = crtc->funcs->cursor_set(crtc, file_priv, req->handle, 2090 1.2.4.2 yamt req->width, req->height); 2091 1.2.4.2 yamt } 2092 1.2.4.2 yamt 2093 1.2.4.2 yamt if (req->flags & DRM_MODE_CURSOR_MOVE) { 2094 1.2.4.2 yamt if (crtc->funcs->cursor_move) { 2095 1.2.4.2 yamt ret = crtc->funcs->cursor_move(crtc, req->x, req->y); 2096 1.2.4.2 yamt } else { 2097 1.2.4.2 yamt ret = -EFAULT; 2098 1.2.4.2 yamt goto out; 2099 1.2.4.2 yamt } 2100 1.2.4.2 yamt } 2101 1.2.4.2 yamt out: 2102 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2103 1.2.4.2 yamt return ret; 2104 1.2.4.2 yamt } 2105 1.2.4.2 yamt 2106 1.2.4.2 yamt /* Original addfb only supported RGB formats, so figure out which one */ 2107 1.2.4.2 yamt uint32_t drm_mode_legacy_fb_format(uint32_t bpp, uint32_t depth) 2108 1.2.4.2 yamt { 2109 1.2.4.2 yamt uint32_t fmt; 2110 1.2.4.2 yamt 2111 1.2.4.2 yamt switch (bpp) { 2112 1.2.4.2 yamt case 8: 2113 1.2.4.2 yamt fmt = DRM_FORMAT_RGB332; 2114 1.2.4.2 yamt break; 2115 1.2.4.2 yamt case 16: 2116 1.2.4.2 yamt if (depth == 15) 2117 1.2.4.2 yamt fmt = DRM_FORMAT_XRGB1555; 2118 1.2.4.2 yamt else 2119 1.2.4.2 yamt fmt = DRM_FORMAT_RGB565; 2120 1.2.4.2 yamt break; 2121 1.2.4.2 yamt case 24: 2122 1.2.4.2 yamt fmt = DRM_FORMAT_RGB888; 2123 1.2.4.2 yamt break; 2124 1.2.4.2 yamt case 32: 2125 1.2.4.2 yamt if (depth == 24) 2126 1.2.4.2 yamt fmt = DRM_FORMAT_XRGB8888; 2127 1.2.4.2 yamt else if (depth == 30) 2128 1.2.4.2 yamt fmt = DRM_FORMAT_XRGB2101010; 2129 1.2.4.2 yamt else 2130 1.2.4.2 yamt fmt = DRM_FORMAT_ARGB8888; 2131 1.2.4.2 yamt break; 2132 1.2.4.2 yamt default: 2133 1.2.4.2 yamt DRM_ERROR("bad bpp, assuming x8r8g8b8 pixel format\n"); 2134 1.2.4.2 yamt fmt = DRM_FORMAT_XRGB8888; 2135 1.2.4.2 yamt break; 2136 1.2.4.2 yamt } 2137 1.2.4.2 yamt 2138 1.2.4.2 yamt return fmt; 2139 1.2.4.2 yamt } 2140 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_legacy_fb_format); 2141 1.2.4.2 yamt 2142 1.2.4.2 yamt /** 2143 1.2.4.2 yamt * drm_mode_addfb - add an FB to the graphics configuration 2144 1.2.4.2 yamt * @inode: inode from the ioctl 2145 1.2.4.2 yamt * @filp: file * from the ioctl 2146 1.2.4.2 yamt * @cmd: cmd from ioctl 2147 1.2.4.2 yamt * @arg: arg from ioctl 2148 1.2.4.2 yamt * 2149 1.2.4.2 yamt * LOCKING: 2150 1.2.4.2 yamt * Takes mode config lock. 2151 1.2.4.2 yamt * 2152 1.2.4.2 yamt * Add a new FB to the specified CRTC, given a user request. 2153 1.2.4.2 yamt * 2154 1.2.4.2 yamt * Called by the user via ioctl. 2155 1.2.4.2 yamt * 2156 1.2.4.2 yamt * RETURNS: 2157 1.2.4.2 yamt * Zero on success, errno on failure. 2158 1.2.4.2 yamt */ 2159 1.2.4.2 yamt int drm_mode_addfb(struct drm_device *dev, 2160 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2161 1.2.4.2 yamt { 2162 1.2.4.2 yamt struct drm_mode_fb_cmd *or = data; 2163 1.2.4.2 yamt static const struct drm_mode_fb_cmd2 zero_fbcmd; 2164 1.2.4.2 yamt struct drm_mode_fb_cmd2 r = zero_fbcmd; 2165 1.2.4.2 yamt struct drm_mode_config *config = &dev->mode_config; 2166 1.2.4.2 yamt struct drm_framebuffer *fb; 2167 1.2.4.2 yamt int ret = 0; 2168 1.2.4.2 yamt 2169 1.2.4.2 yamt /* Use new struct with format internally */ 2170 1.2.4.2 yamt r.fb_id = or->fb_id; 2171 1.2.4.2 yamt r.width = or->width; 2172 1.2.4.2 yamt r.height = or->height; 2173 1.2.4.2 yamt r.pitches[0] = or->pitch; 2174 1.2.4.2 yamt r.pixel_format = drm_mode_legacy_fb_format(or->bpp, or->depth); 2175 1.2.4.2 yamt r.handles[0] = or->handle; 2176 1.2.4.2 yamt 2177 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2178 1.2.4.2 yamt return -EINVAL; 2179 1.2.4.2 yamt 2180 1.2.4.2 yamt if ((config->min_width > r.width) || (r.width > config->max_width)) 2181 1.2.4.2 yamt return -EINVAL; 2182 1.2.4.2 yamt 2183 1.2.4.2 yamt if ((config->min_height > r.height) || (r.height > config->max_height)) 2184 1.2.4.2 yamt return -EINVAL; 2185 1.2.4.2 yamt 2186 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2187 1.2.4.2 yamt 2188 1.2.4.2 yamt /* TODO check buffer is sufficiently large */ 2189 1.2.4.2 yamt /* TODO setup destructor callback */ 2190 1.2.4.2 yamt 2191 1.2.4.2 yamt fb = dev->mode_config.funcs->fb_create(dev, file_priv, &r); 2192 1.2.4.2 yamt if (IS_ERR(fb)) { 2193 1.2.4.2 yamt DRM_DEBUG_KMS("could not create framebuffer\n"); 2194 1.2.4.2 yamt ret = PTR_ERR(fb); 2195 1.2.4.2 yamt goto out; 2196 1.2.4.2 yamt } 2197 1.2.4.2 yamt 2198 1.2.4.2 yamt or->fb_id = fb->base.id; 2199 1.2.4.2 yamt list_add(&fb->filp_head, &file_priv->fbs); 2200 1.2.4.2 yamt DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2201 1.2.4.2 yamt 2202 1.2.4.2 yamt out: 2203 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2204 1.2.4.2 yamt return ret; 2205 1.2.4.2 yamt } 2206 1.2.4.2 yamt 2207 1.2.4.2 yamt static int format_check(const struct drm_mode_fb_cmd2 *r) 2208 1.2.4.2 yamt { 2209 1.2.4.2 yamt uint32_t format = r->pixel_format & ~DRM_FORMAT_BIG_ENDIAN; 2210 1.2.4.2 yamt 2211 1.2.4.2 yamt switch (format) { 2212 1.2.4.2 yamt case DRM_FORMAT_C8: 2213 1.2.4.2 yamt case DRM_FORMAT_RGB332: 2214 1.2.4.2 yamt case DRM_FORMAT_BGR233: 2215 1.2.4.2 yamt case DRM_FORMAT_XRGB4444: 2216 1.2.4.2 yamt case DRM_FORMAT_XBGR4444: 2217 1.2.4.2 yamt case DRM_FORMAT_RGBX4444: 2218 1.2.4.2 yamt case DRM_FORMAT_BGRX4444: 2219 1.2.4.2 yamt case DRM_FORMAT_ARGB4444: 2220 1.2.4.2 yamt case DRM_FORMAT_ABGR4444: 2221 1.2.4.2 yamt case DRM_FORMAT_RGBA4444: 2222 1.2.4.2 yamt case DRM_FORMAT_BGRA4444: 2223 1.2.4.2 yamt case DRM_FORMAT_XRGB1555: 2224 1.2.4.2 yamt case DRM_FORMAT_XBGR1555: 2225 1.2.4.2 yamt case DRM_FORMAT_RGBX5551: 2226 1.2.4.2 yamt case DRM_FORMAT_BGRX5551: 2227 1.2.4.2 yamt case DRM_FORMAT_ARGB1555: 2228 1.2.4.2 yamt case DRM_FORMAT_ABGR1555: 2229 1.2.4.2 yamt case DRM_FORMAT_RGBA5551: 2230 1.2.4.2 yamt case DRM_FORMAT_BGRA5551: 2231 1.2.4.2 yamt case DRM_FORMAT_RGB565: 2232 1.2.4.2 yamt case DRM_FORMAT_BGR565: 2233 1.2.4.2 yamt case DRM_FORMAT_RGB888: 2234 1.2.4.2 yamt case DRM_FORMAT_BGR888: 2235 1.2.4.2 yamt case DRM_FORMAT_XRGB8888: 2236 1.2.4.2 yamt case DRM_FORMAT_XBGR8888: 2237 1.2.4.2 yamt case DRM_FORMAT_RGBX8888: 2238 1.2.4.2 yamt case DRM_FORMAT_BGRX8888: 2239 1.2.4.2 yamt case DRM_FORMAT_ARGB8888: 2240 1.2.4.2 yamt case DRM_FORMAT_ABGR8888: 2241 1.2.4.2 yamt case DRM_FORMAT_RGBA8888: 2242 1.2.4.2 yamt case DRM_FORMAT_BGRA8888: 2243 1.2.4.2 yamt case DRM_FORMAT_XRGB2101010: 2244 1.2.4.2 yamt case DRM_FORMAT_XBGR2101010: 2245 1.2.4.2 yamt case DRM_FORMAT_RGBX1010102: 2246 1.2.4.2 yamt case DRM_FORMAT_BGRX1010102: 2247 1.2.4.2 yamt case DRM_FORMAT_ARGB2101010: 2248 1.2.4.2 yamt case DRM_FORMAT_ABGR2101010: 2249 1.2.4.2 yamt case DRM_FORMAT_RGBA1010102: 2250 1.2.4.2 yamt case DRM_FORMAT_BGRA1010102: 2251 1.2.4.2 yamt case DRM_FORMAT_YUYV: 2252 1.2.4.2 yamt case DRM_FORMAT_YVYU: 2253 1.2.4.2 yamt case DRM_FORMAT_UYVY: 2254 1.2.4.2 yamt case DRM_FORMAT_VYUY: 2255 1.2.4.2 yamt case DRM_FORMAT_AYUV: 2256 1.2.4.2 yamt case DRM_FORMAT_NV12: 2257 1.2.4.2 yamt case DRM_FORMAT_NV21: 2258 1.2.4.2 yamt case DRM_FORMAT_NV16: 2259 1.2.4.2 yamt case DRM_FORMAT_NV61: 2260 1.2.4.2 yamt case DRM_FORMAT_NV24: 2261 1.2.4.2 yamt case DRM_FORMAT_NV42: 2262 1.2.4.2 yamt case DRM_FORMAT_YUV410: 2263 1.2.4.2 yamt case DRM_FORMAT_YVU410: 2264 1.2.4.2 yamt case DRM_FORMAT_YUV411: 2265 1.2.4.2 yamt case DRM_FORMAT_YVU411: 2266 1.2.4.2 yamt case DRM_FORMAT_YUV420: 2267 1.2.4.2 yamt case DRM_FORMAT_YVU420: 2268 1.2.4.2 yamt case DRM_FORMAT_YUV422: 2269 1.2.4.2 yamt case DRM_FORMAT_YVU422: 2270 1.2.4.2 yamt case DRM_FORMAT_YUV444: 2271 1.2.4.2 yamt case DRM_FORMAT_YVU444: 2272 1.2.4.2 yamt return 0; 2273 1.2.4.2 yamt default: 2274 1.2.4.2 yamt return -EINVAL; 2275 1.2.4.2 yamt } 2276 1.2.4.2 yamt } 2277 1.2.4.2 yamt 2278 1.2.4.2 yamt static int framebuffer_check(const struct drm_mode_fb_cmd2 *r) 2279 1.2.4.2 yamt { 2280 1.2.4.2 yamt int ret, hsub, vsub, num_planes, i; 2281 1.2.4.2 yamt 2282 1.2.4.2 yamt ret = format_check(r); 2283 1.2.4.2 yamt if (ret) { 2284 1.2.4.2 yamt DRM_DEBUG_KMS("bad framebuffer format 0x%08x\n", r->pixel_format); 2285 1.2.4.2 yamt return ret; 2286 1.2.4.2 yamt } 2287 1.2.4.2 yamt 2288 1.2.4.2 yamt hsub = drm_format_horz_chroma_subsampling(r->pixel_format); 2289 1.2.4.2 yamt vsub = drm_format_vert_chroma_subsampling(r->pixel_format); 2290 1.2.4.2 yamt num_planes = drm_format_num_planes(r->pixel_format); 2291 1.2.4.2 yamt 2292 1.2.4.2 yamt if (r->width == 0 || r->width % hsub) { 2293 1.2.4.2 yamt DRM_DEBUG_KMS("bad framebuffer width %u\n", r->height); 2294 1.2.4.2 yamt return -EINVAL; 2295 1.2.4.2 yamt } 2296 1.2.4.2 yamt 2297 1.2.4.2 yamt if (r->height == 0 || r->height % vsub) { 2298 1.2.4.2 yamt DRM_DEBUG_KMS("bad framebuffer height %u\n", r->height); 2299 1.2.4.2 yamt return -EINVAL; 2300 1.2.4.2 yamt } 2301 1.2.4.2 yamt 2302 1.2.4.2 yamt for (i = 0; i < num_planes; i++) { 2303 1.2.4.2 yamt unsigned int width = r->width / (i != 0 ? hsub : 1); 2304 1.2.4.2 yamt unsigned int height = r->height / (i != 0 ? vsub : 1); 2305 1.2.4.2 yamt unsigned int cpp = drm_format_plane_cpp(r->pixel_format, i); 2306 1.2.4.2 yamt 2307 1.2.4.2 yamt if (!r->handles[i]) { 2308 1.2.4.2 yamt DRM_DEBUG_KMS("no buffer object handle for plane %d\n", i); 2309 1.2.4.2 yamt return -EINVAL; 2310 1.2.4.2 yamt } 2311 1.2.4.2 yamt 2312 1.2.4.2 yamt if ((uint64_t) width * cpp > UINT_MAX) 2313 1.2.4.2 yamt return -ERANGE; 2314 1.2.4.2 yamt 2315 1.2.4.2 yamt if ((uint64_t) height * r->pitches[i] + r->offsets[i] > UINT_MAX) 2316 1.2.4.2 yamt return -ERANGE; 2317 1.2.4.2 yamt 2318 1.2.4.2 yamt if (r->pitches[i] < width * cpp) { 2319 1.2.4.2 yamt DRM_DEBUG_KMS("bad pitch %u for plane %d\n", r->pitches[i], i); 2320 1.2.4.2 yamt return -EINVAL; 2321 1.2.4.2 yamt } 2322 1.2.4.2 yamt } 2323 1.2.4.2 yamt 2324 1.2.4.2 yamt return 0; 2325 1.2.4.2 yamt } 2326 1.2.4.2 yamt 2327 1.2.4.2 yamt /** 2328 1.2.4.2 yamt * drm_mode_addfb2 - add an FB to the graphics configuration 2329 1.2.4.2 yamt * @inode: inode from the ioctl 2330 1.2.4.2 yamt * @filp: file * from the ioctl 2331 1.2.4.2 yamt * @cmd: cmd from ioctl 2332 1.2.4.2 yamt * @arg: arg from ioctl 2333 1.2.4.2 yamt * 2334 1.2.4.2 yamt * LOCKING: 2335 1.2.4.2 yamt * Takes mode config lock. 2336 1.2.4.2 yamt * 2337 1.2.4.2 yamt * Add a new FB to the specified CRTC, given a user request with format. 2338 1.2.4.2 yamt * 2339 1.2.4.2 yamt * Called by the user via ioctl. 2340 1.2.4.2 yamt * 2341 1.2.4.2 yamt * RETURNS: 2342 1.2.4.2 yamt * Zero on success, errno on failure. 2343 1.2.4.2 yamt */ 2344 1.2.4.2 yamt int drm_mode_addfb2(struct drm_device *dev, 2345 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2346 1.2.4.2 yamt { 2347 1.2.4.2 yamt struct drm_mode_fb_cmd2 *r = data; 2348 1.2.4.2 yamt struct drm_mode_config *config = &dev->mode_config; 2349 1.2.4.2 yamt struct drm_framebuffer *fb; 2350 1.2.4.2 yamt int ret; 2351 1.2.4.2 yamt 2352 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2353 1.2.4.2 yamt return -EINVAL; 2354 1.2.4.2 yamt 2355 1.2.4.2 yamt if (r->flags & ~DRM_MODE_FB_INTERLACED) { 2356 1.2.4.2 yamt DRM_DEBUG_KMS("bad framebuffer flags 0x%08x\n", r->flags); 2357 1.2.4.2 yamt return -EINVAL; 2358 1.2.4.2 yamt } 2359 1.2.4.2 yamt 2360 1.2.4.2 yamt if ((config->min_width > r->width) || (r->width > config->max_width)) { 2361 1.2.4.2 yamt DRM_DEBUG_KMS("bad framebuffer width %d, should be >= %d && <= %d\n", 2362 1.2.4.2 yamt r->width, config->min_width, config->max_width); 2363 1.2.4.2 yamt return -EINVAL; 2364 1.2.4.2 yamt } 2365 1.2.4.2 yamt if ((config->min_height > r->height) || (r->height > config->max_height)) { 2366 1.2.4.2 yamt DRM_DEBUG_KMS("bad framebuffer height %d, should be >= %d && <= %d\n", 2367 1.2.4.2 yamt r->height, config->min_height, config->max_height); 2368 1.2.4.2 yamt return -EINVAL; 2369 1.2.4.2 yamt } 2370 1.2.4.2 yamt 2371 1.2.4.2 yamt ret = framebuffer_check(r); 2372 1.2.4.2 yamt if (ret) 2373 1.2.4.2 yamt return ret; 2374 1.2.4.2 yamt 2375 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2376 1.2.4.2 yamt 2377 1.2.4.2 yamt fb = dev->mode_config.funcs->fb_create(dev, file_priv, r); 2378 1.2.4.2 yamt if (IS_ERR(fb)) { 2379 1.2.4.2 yamt DRM_DEBUG_KMS("could not create framebuffer\n"); 2380 1.2.4.2 yamt ret = PTR_ERR(fb); 2381 1.2.4.2 yamt goto out; 2382 1.2.4.2 yamt } 2383 1.2.4.2 yamt 2384 1.2.4.2 yamt r->fb_id = fb->base.id; 2385 1.2.4.2 yamt list_add(&fb->filp_head, &file_priv->fbs); 2386 1.2.4.2 yamt DRM_DEBUG_KMS("[FB:%d]\n", fb->base.id); 2387 1.2.4.2 yamt 2388 1.2.4.2 yamt out: 2389 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2390 1.2.4.2 yamt return ret; 2391 1.2.4.2 yamt } 2392 1.2.4.2 yamt 2393 1.2.4.2 yamt /** 2394 1.2.4.2 yamt * drm_mode_rmfb - remove an FB from the configuration 2395 1.2.4.2 yamt * @inode: inode from the ioctl 2396 1.2.4.2 yamt * @filp: file * from the ioctl 2397 1.2.4.2 yamt * @cmd: cmd from ioctl 2398 1.2.4.2 yamt * @arg: arg from ioctl 2399 1.2.4.2 yamt * 2400 1.2.4.2 yamt * LOCKING: 2401 1.2.4.2 yamt * Takes mode config lock. 2402 1.2.4.2 yamt * 2403 1.2.4.2 yamt * Remove the FB specified by the user. 2404 1.2.4.2 yamt * 2405 1.2.4.2 yamt * Called by the user via ioctl. 2406 1.2.4.2 yamt * 2407 1.2.4.2 yamt * RETURNS: 2408 1.2.4.2 yamt * Zero on success, errno on failure. 2409 1.2.4.2 yamt */ 2410 1.2.4.2 yamt int drm_mode_rmfb(struct drm_device *dev, 2411 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2412 1.2.4.2 yamt { 2413 1.2.4.2 yamt struct drm_mode_object *obj; 2414 1.2.4.2 yamt struct drm_framebuffer *fb = NULL; 2415 1.2.4.2 yamt struct drm_framebuffer *fbl = NULL; 2416 1.2.4.2 yamt uint32_t *id = data; 2417 1.2.4.2 yamt int ret = 0; 2418 1.2.4.2 yamt int found = 0; 2419 1.2.4.2 yamt 2420 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2421 1.2.4.2 yamt return -EINVAL; 2422 1.2.4.2 yamt 2423 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2424 1.2.4.2 yamt obj = drm_mode_object_find(dev, *id, DRM_MODE_OBJECT_FB); 2425 1.2.4.2 yamt /* TODO check that we really get a framebuffer back. */ 2426 1.2.4.2 yamt if (!obj) { 2427 1.2.4.2 yamt ret = -EINVAL; 2428 1.2.4.2 yamt goto out; 2429 1.2.4.2 yamt } 2430 1.2.4.2 yamt fb = obj_to_fb(obj); 2431 1.2.4.2 yamt 2432 1.2.4.2 yamt list_for_each_entry(fbl, &file_priv->fbs, filp_head) 2433 1.2.4.2 yamt if (fb == fbl) 2434 1.2.4.2 yamt found = 1; 2435 1.2.4.2 yamt 2436 1.2.4.2 yamt if (!found) { 2437 1.2.4.2 yamt ret = -EINVAL; 2438 1.2.4.2 yamt goto out; 2439 1.2.4.2 yamt } 2440 1.2.4.2 yamt 2441 1.2.4.2 yamt drm_framebuffer_remove(fb); 2442 1.2.4.2 yamt 2443 1.2.4.2 yamt out: 2444 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2445 1.2.4.2 yamt return ret; 2446 1.2.4.2 yamt } 2447 1.2.4.2 yamt 2448 1.2.4.2 yamt /** 2449 1.2.4.2 yamt * drm_mode_getfb - get FB info 2450 1.2.4.2 yamt * @inode: inode from the ioctl 2451 1.2.4.2 yamt * @filp: file * from the ioctl 2452 1.2.4.2 yamt * @cmd: cmd from ioctl 2453 1.2.4.2 yamt * @arg: arg from ioctl 2454 1.2.4.2 yamt * 2455 1.2.4.2 yamt * LOCKING: 2456 1.2.4.2 yamt * Takes mode config lock. 2457 1.2.4.2 yamt * 2458 1.2.4.2 yamt * Lookup the FB given its ID and return info about it. 2459 1.2.4.2 yamt * 2460 1.2.4.2 yamt * Called by the user via ioctl. 2461 1.2.4.2 yamt * 2462 1.2.4.2 yamt * RETURNS: 2463 1.2.4.2 yamt * Zero on success, errno on failure. 2464 1.2.4.2 yamt */ 2465 1.2.4.2 yamt int drm_mode_getfb(struct drm_device *dev, 2466 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2467 1.2.4.2 yamt { 2468 1.2.4.2 yamt struct drm_mode_fb_cmd *r = data; 2469 1.2.4.2 yamt struct drm_mode_object *obj; 2470 1.2.4.2 yamt struct drm_framebuffer *fb; 2471 1.2.4.2 yamt int ret = 0; 2472 1.2.4.2 yamt 2473 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2474 1.2.4.2 yamt return -EINVAL; 2475 1.2.4.2 yamt 2476 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2477 1.2.4.2 yamt obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2478 1.2.4.2 yamt if (!obj) { 2479 1.2.4.2 yamt ret = -EINVAL; 2480 1.2.4.2 yamt goto out; 2481 1.2.4.2 yamt } 2482 1.2.4.2 yamt fb = obj_to_fb(obj); 2483 1.2.4.2 yamt 2484 1.2.4.2 yamt r->height = fb->height; 2485 1.2.4.2 yamt r->width = fb->width; 2486 1.2.4.2 yamt r->depth = fb->depth; 2487 1.2.4.2 yamt r->bpp = fb->bits_per_pixel; 2488 1.2.4.2 yamt r->pitch = fb->pitches[0]; 2489 1.2.4.2 yamt fb->funcs->create_handle(fb, file_priv, &r->handle); 2490 1.2.4.2 yamt 2491 1.2.4.2 yamt out: 2492 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2493 1.2.4.2 yamt return ret; 2494 1.2.4.2 yamt } 2495 1.2.4.2 yamt 2496 1.2.4.2 yamt int drm_mode_dirtyfb_ioctl(struct drm_device *dev, 2497 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2498 1.2.4.2 yamt { 2499 1.2.4.2 yamt struct drm_clip_rect __user *clips_ptr; 2500 1.2.4.2 yamt struct drm_clip_rect *clips = NULL; 2501 1.2.4.2 yamt struct drm_mode_fb_dirty_cmd *r = data; 2502 1.2.4.2 yamt struct drm_mode_object *obj; 2503 1.2.4.2 yamt struct drm_framebuffer *fb; 2504 1.2.4.2 yamt unsigned flags; 2505 1.2.4.2 yamt int num_clips; 2506 1.2.4.2 yamt int ret; 2507 1.2.4.2 yamt 2508 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2509 1.2.4.2 yamt return -EINVAL; 2510 1.2.4.2 yamt 2511 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2512 1.2.4.2 yamt obj = drm_mode_object_find(dev, r->fb_id, DRM_MODE_OBJECT_FB); 2513 1.2.4.2 yamt if (!obj) { 2514 1.2.4.2 yamt ret = -EINVAL; 2515 1.2.4.2 yamt goto out_err1; 2516 1.2.4.2 yamt } 2517 1.2.4.2 yamt fb = obj_to_fb(obj); 2518 1.2.4.2 yamt 2519 1.2.4.2 yamt num_clips = r->num_clips; 2520 1.2.4.2 yamt clips_ptr = (struct drm_clip_rect __user *)(unsigned long)r->clips_ptr; 2521 1.2.4.2 yamt 2522 1.2.4.2 yamt if (!num_clips != !clips_ptr) { 2523 1.2.4.2 yamt ret = -EINVAL; 2524 1.2.4.2 yamt goto out_err1; 2525 1.2.4.2 yamt } 2526 1.2.4.2 yamt 2527 1.2.4.2 yamt flags = DRM_MODE_FB_DIRTY_FLAGS & r->flags; 2528 1.2.4.2 yamt 2529 1.2.4.2 yamt /* If userspace annotates copy, clips must come in pairs */ 2530 1.2.4.2 yamt if (flags & DRM_MODE_FB_DIRTY_ANNOTATE_COPY && (num_clips % 2)) { 2531 1.2.4.2 yamt ret = -EINVAL; 2532 1.2.4.2 yamt goto out_err1; 2533 1.2.4.2 yamt } 2534 1.2.4.2 yamt 2535 1.2.4.2 yamt if (num_clips && clips_ptr) { 2536 1.2.4.2 yamt if (num_clips < 0 || num_clips > DRM_MODE_FB_DIRTY_MAX_CLIPS) { 2537 1.2.4.2 yamt ret = -EINVAL; 2538 1.2.4.2 yamt goto out_err1; 2539 1.2.4.2 yamt } 2540 1.2.4.2 yamt clips = kzalloc(num_clips * sizeof(*clips), GFP_KERNEL); 2541 1.2.4.2 yamt if (!clips) { 2542 1.2.4.2 yamt ret = -ENOMEM; 2543 1.2.4.2 yamt goto out_err1; 2544 1.2.4.2 yamt } 2545 1.2.4.2 yamt 2546 1.2.4.2 yamt ret = copy_from_user(clips, clips_ptr, 2547 1.2.4.2 yamt num_clips * sizeof(*clips)); 2548 1.2.4.2 yamt if (ret) { 2549 1.2.4.2 yamt ret = -EFAULT; 2550 1.2.4.2 yamt goto out_err2; 2551 1.2.4.2 yamt } 2552 1.2.4.2 yamt } 2553 1.2.4.2 yamt 2554 1.2.4.2 yamt if (fb->funcs->dirty) { 2555 1.2.4.2 yamt ret = fb->funcs->dirty(fb, file_priv, flags, r->color, 2556 1.2.4.2 yamt clips, num_clips); 2557 1.2.4.2 yamt } else { 2558 1.2.4.2 yamt ret = -ENOSYS; 2559 1.2.4.2 yamt goto out_err2; 2560 1.2.4.2 yamt } 2561 1.2.4.2 yamt 2562 1.2.4.2 yamt out_err2: 2563 1.2.4.2 yamt kfree(clips); 2564 1.2.4.2 yamt out_err1: 2565 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2566 1.2.4.2 yamt return ret; 2567 1.2.4.2 yamt } 2568 1.2.4.2 yamt 2569 1.2.4.2 yamt 2570 1.2.4.2 yamt /** 2571 1.2.4.2 yamt * drm_fb_release - remove and free the FBs on this file 2572 1.2.4.2 yamt * @filp: file * from the ioctl 2573 1.2.4.2 yamt * 2574 1.2.4.2 yamt * LOCKING: 2575 1.2.4.2 yamt * Takes mode config lock. 2576 1.2.4.2 yamt * 2577 1.2.4.2 yamt * Destroy all the FBs associated with @filp. 2578 1.2.4.2 yamt * 2579 1.2.4.2 yamt * Called by the user via ioctl. 2580 1.2.4.2 yamt * 2581 1.2.4.2 yamt * RETURNS: 2582 1.2.4.2 yamt * Zero on success, errno on failure. 2583 1.2.4.2 yamt */ 2584 1.2.4.2 yamt void drm_fb_release(struct drm_file *priv) 2585 1.2.4.2 yamt { 2586 1.2.4.2 yamt struct drm_device *dev = priv->minor->dev; 2587 1.2.4.2 yamt struct drm_framebuffer *fb, *tfb; 2588 1.2.4.2 yamt 2589 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2590 1.2.4.2 yamt list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) { 2591 1.2.4.2 yamt drm_framebuffer_remove(fb); 2592 1.2.4.2 yamt } 2593 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2594 1.2.4.2 yamt } 2595 1.2.4.2 yamt 2596 1.2.4.2 yamt /** 2597 1.2.4.2 yamt * drm_mode_attachmode - add a mode to the user mode list 2598 1.2.4.2 yamt * @dev: DRM device 2599 1.2.4.2 yamt * @connector: connector to add the mode to 2600 1.2.4.2 yamt * @mode: mode to add 2601 1.2.4.2 yamt * 2602 1.2.4.2 yamt * Add @mode to @connector's user mode list. 2603 1.2.4.2 yamt */ 2604 1.2.4.2 yamt static void drm_mode_attachmode(struct drm_device *dev, 2605 1.2.4.2 yamt struct drm_connector *connector, 2606 1.2.4.2 yamt struct drm_display_mode *mode) 2607 1.2.4.2 yamt { 2608 1.2.4.2 yamt list_add_tail(&mode->head, &connector->user_modes); 2609 1.2.4.2 yamt } 2610 1.2.4.2 yamt 2611 1.2.4.2 yamt int drm_mode_attachmode_crtc(struct drm_device *dev, struct drm_crtc *crtc, 2612 1.2.4.2 yamt const struct drm_display_mode *mode) 2613 1.2.4.2 yamt { 2614 1.2.4.2 yamt struct drm_connector *connector; 2615 1.2.4.2 yamt int ret = 0; 2616 1.2.4.2 yamt struct drm_display_mode *dup_mode, *next; 2617 1.2.4.2 yamt #ifdef __NetBSD__ 2618 1.2.4.2 yamt /* LIST_HEAD has another meaning in NetBSD. */ 2619 1.2.4.2 yamt struct list_head list = LIST_HEAD_INIT(list); 2620 1.2.4.2 yamt #else 2621 1.2.4.2 yamt LIST_HEAD(list); 2622 1.2.4.2 yamt #endif 2623 1.2.4.2 yamt 2624 1.2.4.2 yamt list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2625 1.2.4.2 yamt if (!connector->encoder) 2626 1.2.4.2 yamt continue; 2627 1.2.4.2 yamt if (connector->encoder->crtc == crtc) { 2628 1.2.4.2 yamt dup_mode = drm_mode_duplicate(dev, mode); 2629 1.2.4.2 yamt if (!dup_mode) { 2630 1.2.4.2 yamt ret = -ENOMEM; 2631 1.2.4.2 yamt goto out; 2632 1.2.4.2 yamt } 2633 1.2.4.2 yamt list_add_tail(&dup_mode->head, &list); 2634 1.2.4.2 yamt } 2635 1.2.4.2 yamt } 2636 1.2.4.2 yamt 2637 1.2.4.2 yamt list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2638 1.2.4.2 yamt if (!connector->encoder) 2639 1.2.4.2 yamt continue; 2640 1.2.4.2 yamt if (connector->encoder->crtc == crtc) 2641 1.2.4.2 yamt list_move_tail(list.next, &connector->user_modes); 2642 1.2.4.2 yamt } 2643 1.2.4.2 yamt 2644 1.2.4.2 yamt WARN_ON(!list_empty(&list)); 2645 1.2.4.2 yamt 2646 1.2.4.2 yamt out: 2647 1.2.4.2 yamt list_for_each_entry_safe(dup_mode, next, &list, head) 2648 1.2.4.2 yamt drm_mode_destroy(dev, dup_mode); 2649 1.2.4.2 yamt 2650 1.2.4.2 yamt return ret; 2651 1.2.4.2 yamt } 2652 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_attachmode_crtc); 2653 1.2.4.2 yamt 2654 1.2.4.2 yamt static int drm_mode_detachmode(struct drm_device *dev, 2655 1.2.4.2 yamt struct drm_connector *connector, 2656 1.2.4.2 yamt struct drm_display_mode *mode) 2657 1.2.4.2 yamt { 2658 1.2.4.2 yamt int found = 0; 2659 1.2.4.2 yamt int ret = 0; 2660 1.2.4.2 yamt struct drm_display_mode *match_mode, *t; 2661 1.2.4.2 yamt 2662 1.2.4.2 yamt list_for_each_entry_safe(match_mode, t, &connector->user_modes, head) { 2663 1.2.4.2 yamt if (drm_mode_equal(match_mode, mode)) { 2664 1.2.4.2 yamt list_del(&match_mode->head); 2665 1.2.4.2 yamt drm_mode_destroy(dev, match_mode); 2666 1.2.4.2 yamt found = 1; 2667 1.2.4.2 yamt break; 2668 1.2.4.2 yamt } 2669 1.2.4.2 yamt } 2670 1.2.4.2 yamt 2671 1.2.4.2 yamt if (!found) 2672 1.2.4.2 yamt ret = -EINVAL; 2673 1.2.4.2 yamt 2674 1.2.4.2 yamt return ret; 2675 1.2.4.2 yamt } 2676 1.2.4.2 yamt 2677 1.2.4.2 yamt int drm_mode_detachmode_crtc(struct drm_device *dev, struct drm_display_mode *mode) 2678 1.2.4.2 yamt { 2679 1.2.4.2 yamt struct drm_connector *connector; 2680 1.2.4.2 yamt 2681 1.2.4.2 yamt list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 2682 1.2.4.2 yamt drm_mode_detachmode(dev, connector, mode); 2683 1.2.4.2 yamt } 2684 1.2.4.2 yamt return 0; 2685 1.2.4.2 yamt } 2686 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_detachmode_crtc); 2687 1.2.4.2 yamt 2688 1.2.4.2 yamt /** 2689 1.2.4.2 yamt * drm_fb_attachmode - Attach a user mode to an connector 2690 1.2.4.2 yamt * @inode: inode from the ioctl 2691 1.2.4.2 yamt * @filp: file * from the ioctl 2692 1.2.4.2 yamt * @cmd: cmd from ioctl 2693 1.2.4.2 yamt * @arg: arg from ioctl 2694 1.2.4.2 yamt * 2695 1.2.4.2 yamt * This attaches a user specified mode to an connector. 2696 1.2.4.2 yamt * Called by the user via ioctl. 2697 1.2.4.2 yamt * 2698 1.2.4.2 yamt * RETURNS: 2699 1.2.4.2 yamt * Zero on success, errno on failure. 2700 1.2.4.2 yamt */ 2701 1.2.4.2 yamt int drm_mode_attachmode_ioctl(struct drm_device *dev, 2702 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2703 1.2.4.2 yamt { 2704 1.2.4.2 yamt struct drm_mode_mode_cmd *mode_cmd = data; 2705 1.2.4.2 yamt struct drm_connector *connector; 2706 1.2.4.2 yamt struct drm_display_mode *mode; 2707 1.2.4.2 yamt struct drm_mode_object *obj; 2708 1.2.4.2 yamt struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2709 1.2.4.2 yamt int ret; 2710 1.2.4.2 yamt 2711 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2712 1.2.4.2 yamt return -EINVAL; 2713 1.2.4.2 yamt 2714 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2715 1.2.4.2 yamt 2716 1.2.4.2 yamt obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2717 1.2.4.2 yamt if (!obj) { 2718 1.2.4.2 yamt ret = -EINVAL; 2719 1.2.4.2 yamt goto out; 2720 1.2.4.2 yamt } 2721 1.2.4.2 yamt connector = obj_to_connector(obj); 2722 1.2.4.2 yamt 2723 1.2.4.2 yamt mode = drm_mode_create(dev); 2724 1.2.4.2 yamt if (!mode) { 2725 1.2.4.2 yamt ret = -ENOMEM; 2726 1.2.4.2 yamt goto out; 2727 1.2.4.2 yamt } 2728 1.2.4.2 yamt 2729 1.2.4.2 yamt ret = drm_crtc_convert_umode(mode, umode); 2730 1.2.4.2 yamt if (ret) { 2731 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid mode\n"); 2732 1.2.4.2 yamt drm_mode_destroy(dev, mode); 2733 1.2.4.2 yamt goto out; 2734 1.2.4.2 yamt } 2735 1.2.4.2 yamt 2736 1.2.4.2 yamt drm_mode_attachmode(dev, connector, mode); 2737 1.2.4.2 yamt out: 2738 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2739 1.2.4.2 yamt return ret; 2740 1.2.4.2 yamt } 2741 1.2.4.2 yamt 2742 1.2.4.2 yamt 2743 1.2.4.2 yamt /** 2744 1.2.4.2 yamt * drm_fb_detachmode - Detach a user specified mode from an connector 2745 1.2.4.2 yamt * @inode: inode from the ioctl 2746 1.2.4.2 yamt * @filp: file * from the ioctl 2747 1.2.4.2 yamt * @cmd: cmd from ioctl 2748 1.2.4.2 yamt * @arg: arg from ioctl 2749 1.2.4.2 yamt * 2750 1.2.4.2 yamt * Called by the user via ioctl. 2751 1.2.4.2 yamt * 2752 1.2.4.2 yamt * RETURNS: 2753 1.2.4.2 yamt * Zero on success, errno on failure. 2754 1.2.4.2 yamt */ 2755 1.2.4.2 yamt int drm_mode_detachmode_ioctl(struct drm_device *dev, 2756 1.2.4.2 yamt void *data, struct drm_file *file_priv) 2757 1.2.4.2 yamt { 2758 1.2.4.2 yamt struct drm_mode_object *obj; 2759 1.2.4.2 yamt struct drm_mode_mode_cmd *mode_cmd = data; 2760 1.2.4.2 yamt struct drm_connector *connector; 2761 1.2.4.2 yamt struct drm_display_mode mode; 2762 1.2.4.2 yamt struct drm_mode_modeinfo *umode = &mode_cmd->mode; 2763 1.2.4.2 yamt int ret; 2764 1.2.4.2 yamt 2765 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 2766 1.2.4.2 yamt return -EINVAL; 2767 1.2.4.2 yamt 2768 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 2769 1.2.4.2 yamt 2770 1.2.4.2 yamt obj = drm_mode_object_find(dev, mode_cmd->connector_id, DRM_MODE_OBJECT_CONNECTOR); 2771 1.2.4.2 yamt if (!obj) { 2772 1.2.4.2 yamt ret = -EINVAL; 2773 1.2.4.2 yamt goto out; 2774 1.2.4.2 yamt } 2775 1.2.4.2 yamt connector = obj_to_connector(obj); 2776 1.2.4.2 yamt 2777 1.2.4.2 yamt ret = drm_crtc_convert_umode(&mode, umode); 2778 1.2.4.2 yamt if (ret) { 2779 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid mode\n"); 2780 1.2.4.2 yamt goto out; 2781 1.2.4.2 yamt } 2782 1.2.4.2 yamt 2783 1.2.4.2 yamt ret = drm_mode_detachmode(dev, connector, &mode); 2784 1.2.4.2 yamt out: 2785 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 2786 1.2.4.2 yamt return ret; 2787 1.2.4.2 yamt } 2788 1.2.4.2 yamt 2789 1.2.4.2 yamt struct drm_property *drm_property_create(struct drm_device *dev, int flags, 2790 1.2.4.2 yamt const char *name, int num_values) 2791 1.2.4.2 yamt { 2792 1.2.4.2 yamt struct drm_property *property = NULL; 2793 1.2.4.2 yamt int ret; 2794 1.2.4.2 yamt 2795 1.2.4.2 yamt property = kzalloc(sizeof(struct drm_property), GFP_KERNEL); 2796 1.2.4.2 yamt if (!property) 2797 1.2.4.2 yamt return NULL; 2798 1.2.4.2 yamt 2799 1.2.4.2 yamt if (num_values) { 2800 1.2.4.2 yamt property->values = kzalloc(sizeof(uint64_t)*num_values, GFP_KERNEL); 2801 1.2.4.2 yamt if (!property->values) 2802 1.2.4.2 yamt goto fail; 2803 1.2.4.2 yamt } 2804 1.2.4.2 yamt 2805 1.2.4.2 yamt ret = drm_mode_object_get(dev, &property->base, DRM_MODE_OBJECT_PROPERTY); 2806 1.2.4.2 yamt if (ret) 2807 1.2.4.2 yamt goto fail; 2808 1.2.4.2 yamt 2809 1.2.4.2 yamt property->flags = flags; 2810 1.2.4.2 yamt property->num_values = num_values; 2811 1.2.4.2 yamt INIT_LIST_HEAD(&property->enum_blob_list); 2812 1.2.4.2 yamt 2813 1.2.4.2 yamt if (name) { 2814 1.2.4.2 yamt strncpy(property->name, name, DRM_PROP_NAME_LEN); 2815 1.2.4.2 yamt property->name[DRM_PROP_NAME_LEN-1] = '\0'; 2816 1.2.4.2 yamt } 2817 1.2.4.2 yamt 2818 1.2.4.2 yamt list_add_tail(&property->head, &dev->mode_config.property_list); 2819 1.2.4.2 yamt return property; 2820 1.2.4.2 yamt fail: 2821 1.2.4.2 yamt kfree(property->values); 2822 1.2.4.2 yamt kfree(property); 2823 1.2.4.2 yamt return NULL; 2824 1.2.4.2 yamt } 2825 1.2.4.2 yamt EXPORT_SYMBOL(drm_property_create); 2826 1.2.4.2 yamt 2827 1.2.4.2 yamt struct drm_property *drm_property_create_enum(struct drm_device *dev, int flags, 2828 1.2.4.2 yamt const char *name, 2829 1.2.4.2 yamt const struct drm_prop_enum_list *props, 2830 1.2.4.2 yamt int num_values) 2831 1.2.4.2 yamt { 2832 1.2.4.2 yamt struct drm_property *property; 2833 1.2.4.2 yamt int i, ret; 2834 1.2.4.2 yamt 2835 1.2.4.2 yamt flags |= DRM_MODE_PROP_ENUM; 2836 1.2.4.2 yamt 2837 1.2.4.2 yamt property = drm_property_create(dev, flags, name, num_values); 2838 1.2.4.2 yamt if (!property) 2839 1.2.4.2 yamt return NULL; 2840 1.2.4.2 yamt 2841 1.2.4.2 yamt for (i = 0; i < num_values; i++) { 2842 1.2.4.2 yamt ret = drm_property_add_enum(property, i, 2843 1.2.4.2 yamt props[i].type, 2844 1.2.4.2 yamt props[i].name); 2845 1.2.4.2 yamt if (ret) { 2846 1.2.4.2 yamt drm_property_destroy(dev, property); 2847 1.2.4.2 yamt return NULL; 2848 1.2.4.2 yamt } 2849 1.2.4.2 yamt } 2850 1.2.4.2 yamt 2851 1.2.4.2 yamt return property; 2852 1.2.4.2 yamt } 2853 1.2.4.2 yamt EXPORT_SYMBOL(drm_property_create_enum); 2854 1.2.4.2 yamt 2855 1.2.4.2 yamt struct drm_property *drm_property_create_bitmask(struct drm_device *dev, 2856 1.2.4.2 yamt int flags, const char *name, 2857 1.2.4.2 yamt const struct drm_prop_enum_list *props, 2858 1.2.4.2 yamt int num_values) 2859 1.2.4.2 yamt { 2860 1.2.4.2 yamt struct drm_property *property; 2861 1.2.4.2 yamt int i, ret; 2862 1.2.4.2 yamt 2863 1.2.4.2 yamt flags |= DRM_MODE_PROP_BITMASK; 2864 1.2.4.2 yamt 2865 1.2.4.2 yamt property = drm_property_create(dev, flags, name, num_values); 2866 1.2.4.2 yamt if (!property) 2867 1.2.4.2 yamt return NULL; 2868 1.2.4.2 yamt 2869 1.2.4.2 yamt for (i = 0; i < num_values; i++) { 2870 1.2.4.2 yamt ret = drm_property_add_enum(property, i, 2871 1.2.4.2 yamt props[i].type, 2872 1.2.4.2 yamt props[i].name); 2873 1.2.4.2 yamt if (ret) { 2874 1.2.4.2 yamt drm_property_destroy(dev, property); 2875 1.2.4.2 yamt return NULL; 2876 1.2.4.2 yamt } 2877 1.2.4.2 yamt } 2878 1.2.4.2 yamt 2879 1.2.4.2 yamt return property; 2880 1.2.4.2 yamt } 2881 1.2.4.2 yamt EXPORT_SYMBOL(drm_property_create_bitmask); 2882 1.2.4.2 yamt 2883 1.2.4.2 yamt struct drm_property *drm_property_create_range(struct drm_device *dev, int flags, 2884 1.2.4.2 yamt const char *name, 2885 1.2.4.2 yamt uint64_t min, uint64_t max) 2886 1.2.4.2 yamt { 2887 1.2.4.2 yamt struct drm_property *property; 2888 1.2.4.2 yamt 2889 1.2.4.2 yamt flags |= DRM_MODE_PROP_RANGE; 2890 1.2.4.2 yamt 2891 1.2.4.2 yamt property = drm_property_create(dev, flags, name, 2); 2892 1.2.4.2 yamt if (!property) 2893 1.2.4.2 yamt return NULL; 2894 1.2.4.2 yamt 2895 1.2.4.2 yamt property->values[0] = min; 2896 1.2.4.2 yamt property->values[1] = max; 2897 1.2.4.2 yamt 2898 1.2.4.2 yamt return property; 2899 1.2.4.2 yamt } 2900 1.2.4.2 yamt EXPORT_SYMBOL(drm_property_create_range); 2901 1.2.4.2 yamt 2902 1.2.4.2 yamt int drm_property_add_enum(struct drm_property *property, int index, 2903 1.2.4.2 yamt uint64_t value, const char *name) 2904 1.2.4.2 yamt { 2905 1.2.4.2 yamt struct drm_property_enum *prop_enum; 2906 1.2.4.2 yamt 2907 1.2.4.2 yamt if (!(property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK))) 2908 1.2.4.2 yamt return -EINVAL; 2909 1.2.4.2 yamt 2910 1.2.4.2 yamt /* 2911 1.2.4.2 yamt * Bitmask enum properties have the additional constraint of values 2912 1.2.4.2 yamt * from 0 to 63 2913 1.2.4.2 yamt */ 2914 1.2.4.2 yamt if ((property->flags & DRM_MODE_PROP_BITMASK) && (value > 63)) 2915 1.2.4.2 yamt return -EINVAL; 2916 1.2.4.2 yamt 2917 1.2.4.2 yamt if (!list_empty(&property->enum_blob_list)) { 2918 1.2.4.2 yamt list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 2919 1.2.4.2 yamt if (prop_enum->value == value) { 2920 1.2.4.2 yamt strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2921 1.2.4.2 yamt prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2922 1.2.4.2 yamt return 0; 2923 1.2.4.2 yamt } 2924 1.2.4.2 yamt } 2925 1.2.4.2 yamt } 2926 1.2.4.2 yamt 2927 1.2.4.2 yamt prop_enum = kzalloc(sizeof(struct drm_property_enum), GFP_KERNEL); 2928 1.2.4.2 yamt if (!prop_enum) 2929 1.2.4.2 yamt return -ENOMEM; 2930 1.2.4.2 yamt 2931 1.2.4.2 yamt strncpy(prop_enum->name, name, DRM_PROP_NAME_LEN); 2932 1.2.4.2 yamt prop_enum->name[DRM_PROP_NAME_LEN-1] = '\0'; 2933 1.2.4.2 yamt prop_enum->value = value; 2934 1.2.4.2 yamt 2935 1.2.4.2 yamt property->values[index] = value; 2936 1.2.4.2 yamt list_add_tail(&prop_enum->head, &property->enum_blob_list); 2937 1.2.4.2 yamt return 0; 2938 1.2.4.2 yamt } 2939 1.2.4.2 yamt EXPORT_SYMBOL(drm_property_add_enum); 2940 1.2.4.2 yamt 2941 1.2.4.2 yamt void drm_property_destroy(struct drm_device *dev, struct drm_property *property) 2942 1.2.4.2 yamt { 2943 1.2.4.2 yamt struct drm_property_enum *prop_enum, *pt; 2944 1.2.4.2 yamt 2945 1.2.4.2 yamt list_for_each_entry_safe(prop_enum, pt, &property->enum_blob_list, head) { 2946 1.2.4.2 yamt list_del(&prop_enum->head); 2947 1.2.4.2 yamt kfree(prop_enum); 2948 1.2.4.2 yamt } 2949 1.2.4.2 yamt 2950 1.2.4.2 yamt if (property->num_values) 2951 1.2.4.2 yamt kfree(property->values); 2952 1.2.4.2 yamt drm_mode_object_put(dev, &property->base); 2953 1.2.4.2 yamt list_del(&property->head); 2954 1.2.4.2 yamt kfree(property); 2955 1.2.4.2 yamt } 2956 1.2.4.2 yamt EXPORT_SYMBOL(drm_property_destroy); 2957 1.2.4.2 yamt 2958 1.2.4.2 yamt void drm_object_attach_property(struct drm_mode_object *obj, 2959 1.2.4.2 yamt struct drm_property *property, 2960 1.2.4.2 yamt uint64_t init_val) 2961 1.2.4.2 yamt { 2962 1.2.4.2 yamt int count = obj->properties->count; 2963 1.2.4.2 yamt 2964 1.2.4.2 yamt if (count == DRM_OBJECT_MAX_PROPERTY) { 2965 1.2.4.2 yamt WARN(1, "Failed to attach object property (type: 0x%x). Please " 2966 1.2.4.2 yamt "increase DRM_OBJECT_MAX_PROPERTY by 1 for each time " 2967 1.2.4.2 yamt "you see this message on the same object type.\n", 2968 1.2.4.2 yamt obj->type); 2969 1.2.4.2 yamt return; 2970 1.2.4.2 yamt } 2971 1.2.4.2 yamt 2972 1.2.4.2 yamt obj->properties->ids[count] = property->base.id; 2973 1.2.4.2 yamt obj->properties->values[count] = init_val; 2974 1.2.4.2 yamt obj->properties->count++; 2975 1.2.4.2 yamt } 2976 1.2.4.2 yamt EXPORT_SYMBOL(drm_object_attach_property); 2977 1.2.4.2 yamt 2978 1.2.4.2 yamt int drm_object_property_set_value(struct drm_mode_object *obj, 2979 1.2.4.2 yamt struct drm_property *property, uint64_t val) 2980 1.2.4.2 yamt { 2981 1.2.4.2 yamt int i; 2982 1.2.4.2 yamt 2983 1.2.4.2 yamt for (i = 0; i < obj->properties->count; i++) { 2984 1.2.4.2 yamt if (obj->properties->ids[i] == property->base.id) { 2985 1.2.4.2 yamt obj->properties->values[i] = val; 2986 1.2.4.2 yamt return 0; 2987 1.2.4.2 yamt } 2988 1.2.4.2 yamt } 2989 1.2.4.2 yamt 2990 1.2.4.2 yamt return -EINVAL; 2991 1.2.4.2 yamt } 2992 1.2.4.2 yamt EXPORT_SYMBOL(drm_object_property_set_value); 2993 1.2.4.2 yamt 2994 1.2.4.2 yamt int drm_object_property_get_value(struct drm_mode_object *obj, 2995 1.2.4.2 yamt struct drm_property *property, uint64_t *val) 2996 1.2.4.2 yamt { 2997 1.2.4.2 yamt int i; 2998 1.2.4.2 yamt 2999 1.2.4.2 yamt for (i = 0; i < obj->properties->count; i++) { 3000 1.2.4.2 yamt if (obj->properties->ids[i] == property->base.id) { 3001 1.2.4.2 yamt *val = obj->properties->values[i]; 3002 1.2.4.2 yamt return 0; 3003 1.2.4.2 yamt } 3004 1.2.4.2 yamt } 3005 1.2.4.2 yamt 3006 1.2.4.2 yamt return -EINVAL; 3007 1.2.4.2 yamt } 3008 1.2.4.2 yamt EXPORT_SYMBOL(drm_object_property_get_value); 3009 1.2.4.2 yamt 3010 1.2.4.2 yamt int drm_mode_getproperty_ioctl(struct drm_device *dev, 3011 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3012 1.2.4.2 yamt { 3013 1.2.4.2 yamt struct drm_mode_object *obj; 3014 1.2.4.2 yamt struct drm_mode_get_property *out_resp = data; 3015 1.2.4.2 yamt struct drm_property *property; 3016 1.2.4.2 yamt int enum_count = 0; 3017 1.2.4.2 yamt int blob_count = 0; 3018 1.2.4.2 yamt int value_count = 0; 3019 1.2.4.2 yamt int ret = 0, i; 3020 1.2.4.2 yamt int copied; 3021 1.2.4.2 yamt struct drm_property_enum *prop_enum; 3022 1.2.4.2 yamt struct drm_mode_property_enum __user *enum_ptr; 3023 1.2.4.2 yamt struct drm_property_blob *prop_blob; 3024 1.2.4.2 yamt uint32_t __user *blob_id_ptr; 3025 1.2.4.2 yamt uint64_t __user *values_ptr; 3026 1.2.4.2 yamt uint32_t __user *blob_length_ptr; 3027 1.2.4.2 yamt 3028 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3029 1.2.4.2 yamt return -EINVAL; 3030 1.2.4.2 yamt 3031 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3032 1.2.4.2 yamt obj = drm_mode_object_find(dev, out_resp->prop_id, DRM_MODE_OBJECT_PROPERTY); 3033 1.2.4.2 yamt if (!obj) { 3034 1.2.4.2 yamt ret = -EINVAL; 3035 1.2.4.2 yamt goto done; 3036 1.2.4.2 yamt } 3037 1.2.4.2 yamt property = obj_to_property(obj); 3038 1.2.4.2 yamt 3039 1.2.4.2 yamt if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { 3040 1.2.4.2 yamt list_for_each_entry(prop_enum, &property->enum_blob_list, head) 3041 1.2.4.2 yamt enum_count++; 3042 1.2.4.2 yamt } else if (property->flags & DRM_MODE_PROP_BLOB) { 3043 1.2.4.2 yamt list_for_each_entry(prop_blob, &property->enum_blob_list, head) 3044 1.2.4.2 yamt blob_count++; 3045 1.2.4.2 yamt } 3046 1.2.4.2 yamt 3047 1.2.4.2 yamt value_count = property->num_values; 3048 1.2.4.2 yamt 3049 1.2.4.2 yamt strncpy(out_resp->name, property->name, DRM_PROP_NAME_LEN); 3050 1.2.4.2 yamt out_resp->name[DRM_PROP_NAME_LEN-1] = 0; 3051 1.2.4.2 yamt out_resp->flags = property->flags; 3052 1.2.4.2 yamt 3053 1.2.4.2 yamt if ((out_resp->count_values >= value_count) && value_count) { 3054 1.2.4.2 yamt values_ptr = (uint64_t __user *)(unsigned long)out_resp->values_ptr; 3055 1.2.4.2 yamt for (i = 0; i < value_count; i++) { 3056 1.2.4.2 yamt if (copy_to_user(values_ptr + i, &property->values[i], sizeof(uint64_t))) { 3057 1.2.4.2 yamt ret = -EFAULT; 3058 1.2.4.2 yamt goto done; 3059 1.2.4.2 yamt } 3060 1.2.4.2 yamt } 3061 1.2.4.2 yamt } 3062 1.2.4.2 yamt out_resp->count_values = value_count; 3063 1.2.4.2 yamt 3064 1.2.4.2 yamt if (property->flags & (DRM_MODE_PROP_ENUM | DRM_MODE_PROP_BITMASK)) { 3065 1.2.4.2 yamt if ((out_resp->count_enum_blobs >= enum_count) && enum_count) { 3066 1.2.4.2 yamt copied = 0; 3067 1.2.4.2 yamt enum_ptr = (struct drm_mode_property_enum __user *)(unsigned long)out_resp->enum_blob_ptr; 3068 1.2.4.2 yamt list_for_each_entry(prop_enum, &property->enum_blob_list, head) { 3069 1.2.4.2 yamt 3070 1.2.4.2 yamt if (copy_to_user(&enum_ptr[copied].value, &prop_enum->value, sizeof(uint64_t))) { 3071 1.2.4.2 yamt ret = -EFAULT; 3072 1.2.4.2 yamt goto done; 3073 1.2.4.2 yamt } 3074 1.2.4.2 yamt 3075 1.2.4.2 yamt if (copy_to_user(&enum_ptr[copied].name, 3076 1.2.4.2 yamt &prop_enum->name, DRM_PROP_NAME_LEN)) { 3077 1.2.4.2 yamt ret = -EFAULT; 3078 1.2.4.2 yamt goto done; 3079 1.2.4.2 yamt } 3080 1.2.4.2 yamt copied++; 3081 1.2.4.2 yamt } 3082 1.2.4.2 yamt } 3083 1.2.4.2 yamt out_resp->count_enum_blobs = enum_count; 3084 1.2.4.2 yamt } 3085 1.2.4.2 yamt 3086 1.2.4.2 yamt if (property->flags & DRM_MODE_PROP_BLOB) { 3087 1.2.4.2 yamt if ((out_resp->count_enum_blobs >= blob_count) && blob_count) { 3088 1.2.4.2 yamt copied = 0; 3089 1.2.4.2 yamt blob_id_ptr = (uint32_t __user *)(unsigned long)out_resp->enum_blob_ptr; 3090 1.2.4.2 yamt blob_length_ptr = (uint32_t __user *)(unsigned long)out_resp->values_ptr; 3091 1.2.4.2 yamt 3092 1.2.4.2 yamt list_for_each_entry(prop_blob, &property->enum_blob_list, head) { 3093 1.2.4.2 yamt if (put_user(prop_blob->base.id, blob_id_ptr + copied)) { 3094 1.2.4.2 yamt ret = -EFAULT; 3095 1.2.4.2 yamt goto done; 3096 1.2.4.2 yamt } 3097 1.2.4.2 yamt 3098 1.2.4.2 yamt if (put_user(prop_blob->length, blob_length_ptr + copied)) { 3099 1.2.4.2 yamt ret = -EFAULT; 3100 1.2.4.2 yamt goto done; 3101 1.2.4.2 yamt } 3102 1.2.4.2 yamt 3103 1.2.4.2 yamt copied++; 3104 1.2.4.2 yamt } 3105 1.2.4.2 yamt } 3106 1.2.4.2 yamt out_resp->count_enum_blobs = blob_count; 3107 1.2.4.2 yamt } 3108 1.2.4.2 yamt done: 3109 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3110 1.2.4.2 yamt return ret; 3111 1.2.4.2 yamt } 3112 1.2.4.2 yamt 3113 1.2.4.2 yamt static struct drm_property_blob *drm_property_create_blob(struct drm_device *dev, int length, 3114 1.2.4.2 yamt void *data) 3115 1.2.4.2 yamt { 3116 1.2.4.2 yamt struct drm_property_blob *blob; 3117 1.2.4.2 yamt int ret; 3118 1.2.4.2 yamt 3119 1.2.4.2 yamt if (!length || !data) 3120 1.2.4.2 yamt return NULL; 3121 1.2.4.2 yamt 3122 1.2.4.2 yamt blob = kzalloc(sizeof(struct drm_property_blob)+length, GFP_KERNEL); 3123 1.2.4.2 yamt if (!blob) 3124 1.2.4.2 yamt return NULL; 3125 1.2.4.2 yamt 3126 1.2.4.2 yamt ret = drm_mode_object_get(dev, &blob->base, DRM_MODE_OBJECT_BLOB); 3127 1.2.4.2 yamt if (ret) { 3128 1.2.4.2 yamt kfree(blob); 3129 1.2.4.2 yamt return NULL; 3130 1.2.4.2 yamt } 3131 1.2.4.2 yamt 3132 1.2.4.2 yamt blob->length = length; 3133 1.2.4.2 yamt 3134 1.2.4.2 yamt memcpy(blob->data, data, length); 3135 1.2.4.2 yamt 3136 1.2.4.2 yamt list_add_tail(&blob->head, &dev->mode_config.property_blob_list); 3137 1.2.4.2 yamt return blob; 3138 1.2.4.2 yamt } 3139 1.2.4.2 yamt 3140 1.2.4.2 yamt static void drm_property_destroy_blob(struct drm_device *dev, 3141 1.2.4.2 yamt struct drm_property_blob *blob) 3142 1.2.4.2 yamt { 3143 1.2.4.2 yamt drm_mode_object_put(dev, &blob->base); 3144 1.2.4.2 yamt list_del(&blob->head); 3145 1.2.4.2 yamt kfree(blob); 3146 1.2.4.2 yamt } 3147 1.2.4.2 yamt 3148 1.2.4.2 yamt int drm_mode_getblob_ioctl(struct drm_device *dev, 3149 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3150 1.2.4.2 yamt { 3151 1.2.4.2 yamt struct drm_mode_object *obj; 3152 1.2.4.2 yamt struct drm_mode_get_blob *out_resp = data; 3153 1.2.4.2 yamt struct drm_property_blob *blob; 3154 1.2.4.2 yamt int ret = 0; 3155 1.2.4.2 yamt void __user *blob_ptr; 3156 1.2.4.2 yamt 3157 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3158 1.2.4.2 yamt return -EINVAL; 3159 1.2.4.2 yamt 3160 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3161 1.2.4.2 yamt obj = drm_mode_object_find(dev, out_resp->blob_id, DRM_MODE_OBJECT_BLOB); 3162 1.2.4.2 yamt if (!obj) { 3163 1.2.4.2 yamt ret = -EINVAL; 3164 1.2.4.2 yamt goto done; 3165 1.2.4.2 yamt } 3166 1.2.4.2 yamt blob = obj_to_blob(obj); 3167 1.2.4.2 yamt 3168 1.2.4.2 yamt if (out_resp->length == blob->length) { 3169 1.2.4.2 yamt blob_ptr = (void __user *)(unsigned long)out_resp->data; 3170 1.2.4.2 yamt if (copy_to_user(blob_ptr, blob->data, blob->length)){ 3171 1.2.4.2 yamt ret = -EFAULT; 3172 1.2.4.2 yamt goto done; 3173 1.2.4.2 yamt } 3174 1.2.4.2 yamt } 3175 1.2.4.2 yamt out_resp->length = blob->length; 3176 1.2.4.2 yamt 3177 1.2.4.2 yamt done: 3178 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3179 1.2.4.2 yamt return ret; 3180 1.2.4.2 yamt } 3181 1.2.4.2 yamt 3182 1.2.4.2 yamt int drm_mode_connector_update_edid_property(struct drm_connector *connector, 3183 1.2.4.2 yamt struct edid *edid) 3184 1.2.4.2 yamt { 3185 1.2.4.2 yamt struct drm_device *dev = connector->dev; 3186 1.2.4.2 yamt int ret, size; 3187 1.2.4.2 yamt 3188 1.2.4.2 yamt if (connector->edid_blob_ptr) 3189 1.2.4.2 yamt drm_property_destroy_blob(dev, connector->edid_blob_ptr); 3190 1.2.4.2 yamt 3191 1.2.4.2 yamt /* Delete edid, when there is none. */ 3192 1.2.4.2 yamt if (!edid) { 3193 1.2.4.2 yamt connector->edid_blob_ptr = NULL; 3194 1.2.4.2 yamt ret = drm_object_property_set_value(&connector->base, dev->mode_config.edid_property, 0); 3195 1.2.4.2 yamt return ret; 3196 1.2.4.2 yamt } 3197 1.2.4.2 yamt 3198 1.2.4.2 yamt size = EDID_LENGTH * (1 + edid->extensions); 3199 1.2.4.2 yamt connector->edid_blob_ptr = drm_property_create_blob(connector->dev, 3200 1.2.4.2 yamt size, edid); 3201 1.2.4.2 yamt if (!connector->edid_blob_ptr) 3202 1.2.4.2 yamt return -EINVAL; 3203 1.2.4.2 yamt 3204 1.2.4.2 yamt ret = drm_object_property_set_value(&connector->base, 3205 1.2.4.2 yamt dev->mode_config.edid_property, 3206 1.2.4.2 yamt connector->edid_blob_ptr->base.id); 3207 1.2.4.2 yamt 3208 1.2.4.2 yamt return ret; 3209 1.2.4.2 yamt } 3210 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_connector_update_edid_property); 3211 1.2.4.2 yamt 3212 1.2.4.2 yamt static bool drm_property_change_is_valid(struct drm_property *property, 3213 1.2.4.2 yamt uint64_t value) 3214 1.2.4.2 yamt { 3215 1.2.4.2 yamt if (property->flags & DRM_MODE_PROP_IMMUTABLE) 3216 1.2.4.2 yamt return false; 3217 1.2.4.2 yamt if (property->flags & DRM_MODE_PROP_RANGE) { 3218 1.2.4.2 yamt if (value < property->values[0] || value > property->values[1]) 3219 1.2.4.2 yamt return false; 3220 1.2.4.2 yamt return true; 3221 1.2.4.2 yamt } else if (property->flags & DRM_MODE_PROP_BITMASK) { 3222 1.2.4.2 yamt int i; 3223 1.2.4.2 yamt uint64_t valid_mask = 0; 3224 1.2.4.2 yamt for (i = 0; i < property->num_values; i++) 3225 1.2.4.2 yamt valid_mask |= (1ULL << property->values[i]); 3226 1.2.4.2 yamt return !(value & ~valid_mask); 3227 1.2.4.2 yamt } else if (property->flags & DRM_MODE_PROP_BLOB) { 3228 1.2.4.2 yamt /* Only the driver knows */ 3229 1.2.4.2 yamt return true; 3230 1.2.4.2 yamt } else { 3231 1.2.4.2 yamt int i; 3232 1.2.4.2 yamt for (i = 0; i < property->num_values; i++) 3233 1.2.4.2 yamt if (property->values[i] == value) 3234 1.2.4.2 yamt return true; 3235 1.2.4.2 yamt return false; 3236 1.2.4.2 yamt } 3237 1.2.4.2 yamt } 3238 1.2.4.2 yamt 3239 1.2.4.2 yamt int drm_mode_connector_property_set_ioctl(struct drm_device *dev, 3240 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3241 1.2.4.2 yamt { 3242 1.2.4.2 yamt struct drm_mode_connector_set_property *conn_set_prop = data; 3243 1.2.4.2 yamt struct drm_mode_obj_set_property obj_set_prop = { 3244 1.2.4.2 yamt .value = conn_set_prop->value, 3245 1.2.4.2 yamt .prop_id = conn_set_prop->prop_id, 3246 1.2.4.2 yamt .obj_id = conn_set_prop->connector_id, 3247 1.2.4.2 yamt .obj_type = DRM_MODE_OBJECT_CONNECTOR 3248 1.2.4.2 yamt }; 3249 1.2.4.2 yamt 3250 1.2.4.2 yamt /* It does all the locking and checking we need */ 3251 1.2.4.2 yamt return drm_mode_obj_set_property_ioctl(dev, &obj_set_prop, file_priv); 3252 1.2.4.2 yamt } 3253 1.2.4.2 yamt 3254 1.2.4.2 yamt static int drm_mode_connector_set_obj_prop(struct drm_mode_object *obj, 3255 1.2.4.2 yamt struct drm_property *property, 3256 1.2.4.2 yamt uint64_t value) 3257 1.2.4.2 yamt { 3258 1.2.4.2 yamt int ret = -EINVAL; 3259 1.2.4.2 yamt struct drm_connector *connector = obj_to_connector(obj); 3260 1.2.4.2 yamt 3261 1.2.4.2 yamt /* Do DPMS ourselves */ 3262 1.2.4.2 yamt if (property == connector->dev->mode_config.dpms_property) { 3263 1.2.4.2 yamt if (connector->funcs->dpms) 3264 1.2.4.2 yamt (*connector->funcs->dpms)(connector, (int)value); 3265 1.2.4.2 yamt ret = 0; 3266 1.2.4.2 yamt } else if (connector->funcs->set_property) 3267 1.2.4.2 yamt ret = connector->funcs->set_property(connector, property, value); 3268 1.2.4.2 yamt 3269 1.2.4.2 yamt /* store the property value if successful */ 3270 1.2.4.2 yamt if (!ret) 3271 1.2.4.2 yamt drm_object_property_set_value(&connector->base, property, value); 3272 1.2.4.2 yamt return ret; 3273 1.2.4.2 yamt } 3274 1.2.4.2 yamt 3275 1.2.4.2 yamt static int drm_mode_crtc_set_obj_prop(struct drm_mode_object *obj, 3276 1.2.4.2 yamt struct drm_property *property, 3277 1.2.4.2 yamt uint64_t value) 3278 1.2.4.2 yamt { 3279 1.2.4.2 yamt int ret = -EINVAL; 3280 1.2.4.2 yamt struct drm_crtc *crtc = obj_to_crtc(obj); 3281 1.2.4.2 yamt 3282 1.2.4.2 yamt if (crtc->funcs->set_property) 3283 1.2.4.2 yamt ret = crtc->funcs->set_property(crtc, property, value); 3284 1.2.4.2 yamt if (!ret) 3285 1.2.4.2 yamt drm_object_property_set_value(obj, property, value); 3286 1.2.4.2 yamt 3287 1.2.4.2 yamt return ret; 3288 1.2.4.2 yamt } 3289 1.2.4.2 yamt 3290 1.2.4.2 yamt static int drm_mode_plane_set_obj_prop(struct drm_mode_object *obj, 3291 1.2.4.2 yamt struct drm_property *property, 3292 1.2.4.2 yamt uint64_t value) 3293 1.2.4.2 yamt { 3294 1.2.4.2 yamt int ret = -EINVAL; 3295 1.2.4.2 yamt struct drm_plane *plane = obj_to_plane(obj); 3296 1.2.4.2 yamt 3297 1.2.4.2 yamt if (plane->funcs->set_property) 3298 1.2.4.2 yamt ret = plane->funcs->set_property(plane, property, value); 3299 1.2.4.2 yamt if (!ret) 3300 1.2.4.2 yamt drm_object_property_set_value(obj, property, value); 3301 1.2.4.2 yamt 3302 1.2.4.2 yamt return ret; 3303 1.2.4.2 yamt } 3304 1.2.4.2 yamt 3305 1.2.4.2 yamt int drm_mode_obj_get_properties_ioctl(struct drm_device *dev, void *data, 3306 1.2.4.2 yamt struct drm_file *file_priv) 3307 1.2.4.2 yamt { 3308 1.2.4.2 yamt struct drm_mode_obj_get_properties *arg = data; 3309 1.2.4.2 yamt struct drm_mode_object *obj; 3310 1.2.4.2 yamt int ret = 0; 3311 1.2.4.2 yamt int i; 3312 1.2.4.2 yamt int copied = 0; 3313 1.2.4.2 yamt int props_count = 0; 3314 1.2.4.2 yamt uint32_t __user *props_ptr; 3315 1.2.4.2 yamt uint64_t __user *prop_values_ptr; 3316 1.2.4.2 yamt 3317 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3318 1.2.4.2 yamt return -EINVAL; 3319 1.2.4.2 yamt 3320 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3321 1.2.4.2 yamt 3322 1.2.4.2 yamt obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 3323 1.2.4.2 yamt if (!obj) { 3324 1.2.4.2 yamt ret = -EINVAL; 3325 1.2.4.2 yamt goto out; 3326 1.2.4.2 yamt } 3327 1.2.4.2 yamt if (!obj->properties) { 3328 1.2.4.2 yamt ret = -EINVAL; 3329 1.2.4.2 yamt goto out; 3330 1.2.4.2 yamt } 3331 1.2.4.2 yamt 3332 1.2.4.2 yamt props_count = obj->properties->count; 3333 1.2.4.2 yamt 3334 1.2.4.2 yamt /* This ioctl is called twice, once to determine how much space is 3335 1.2.4.2 yamt * needed, and the 2nd time to fill it. */ 3336 1.2.4.2 yamt if ((arg->count_props >= props_count) && props_count) { 3337 1.2.4.2 yamt copied = 0; 3338 1.2.4.2 yamt props_ptr = (uint32_t __user *)(unsigned long)(arg->props_ptr); 3339 1.2.4.2 yamt prop_values_ptr = (uint64_t __user *)(unsigned long) 3340 1.2.4.2 yamt (arg->prop_values_ptr); 3341 1.2.4.2 yamt for (i = 0; i < props_count; i++) { 3342 1.2.4.2 yamt if (put_user(obj->properties->ids[i], 3343 1.2.4.2 yamt props_ptr + copied)) { 3344 1.2.4.2 yamt ret = -EFAULT; 3345 1.2.4.2 yamt goto out; 3346 1.2.4.2 yamt } 3347 1.2.4.2 yamt if (put_user(obj->properties->values[i], 3348 1.2.4.2 yamt prop_values_ptr + copied)) { 3349 1.2.4.2 yamt ret = -EFAULT; 3350 1.2.4.2 yamt goto out; 3351 1.2.4.2 yamt } 3352 1.2.4.2 yamt copied++; 3353 1.2.4.2 yamt } 3354 1.2.4.2 yamt } 3355 1.2.4.2 yamt arg->count_props = props_count; 3356 1.2.4.2 yamt out: 3357 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3358 1.2.4.2 yamt return ret; 3359 1.2.4.2 yamt } 3360 1.2.4.2 yamt 3361 1.2.4.2 yamt int drm_mode_obj_set_property_ioctl(struct drm_device *dev, void *data, 3362 1.2.4.2 yamt struct drm_file *file_priv) 3363 1.2.4.2 yamt { 3364 1.2.4.2 yamt struct drm_mode_obj_set_property *arg = data; 3365 1.2.4.2 yamt struct drm_mode_object *arg_obj; 3366 1.2.4.2 yamt struct drm_mode_object *prop_obj; 3367 1.2.4.2 yamt struct drm_property *property; 3368 1.2.4.2 yamt int ret = -EINVAL; 3369 1.2.4.2 yamt int i; 3370 1.2.4.2 yamt 3371 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3372 1.2.4.2 yamt return -EINVAL; 3373 1.2.4.2 yamt 3374 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3375 1.2.4.2 yamt 3376 1.2.4.2 yamt arg_obj = drm_mode_object_find(dev, arg->obj_id, arg->obj_type); 3377 1.2.4.2 yamt if (!arg_obj) 3378 1.2.4.2 yamt goto out; 3379 1.2.4.2 yamt if (!arg_obj->properties) 3380 1.2.4.2 yamt goto out; 3381 1.2.4.2 yamt 3382 1.2.4.2 yamt for (i = 0; i < arg_obj->properties->count; i++) 3383 1.2.4.2 yamt if (arg_obj->properties->ids[i] == arg->prop_id) 3384 1.2.4.2 yamt break; 3385 1.2.4.2 yamt 3386 1.2.4.2 yamt if (i == arg_obj->properties->count) 3387 1.2.4.2 yamt goto out; 3388 1.2.4.2 yamt 3389 1.2.4.2 yamt prop_obj = drm_mode_object_find(dev, arg->prop_id, 3390 1.2.4.2 yamt DRM_MODE_OBJECT_PROPERTY); 3391 1.2.4.2 yamt if (!prop_obj) 3392 1.2.4.2 yamt goto out; 3393 1.2.4.2 yamt property = obj_to_property(prop_obj); 3394 1.2.4.2 yamt 3395 1.2.4.2 yamt if (!drm_property_change_is_valid(property, arg->value)) 3396 1.2.4.2 yamt goto out; 3397 1.2.4.2 yamt 3398 1.2.4.2 yamt switch (arg_obj->type) { 3399 1.2.4.2 yamt case DRM_MODE_OBJECT_CONNECTOR: 3400 1.2.4.2 yamt ret = drm_mode_connector_set_obj_prop(arg_obj, property, 3401 1.2.4.2 yamt arg->value); 3402 1.2.4.2 yamt break; 3403 1.2.4.2 yamt case DRM_MODE_OBJECT_CRTC: 3404 1.2.4.2 yamt ret = drm_mode_crtc_set_obj_prop(arg_obj, property, arg->value); 3405 1.2.4.2 yamt break; 3406 1.2.4.2 yamt case DRM_MODE_OBJECT_PLANE: 3407 1.2.4.2 yamt ret = drm_mode_plane_set_obj_prop(arg_obj, property, arg->value); 3408 1.2.4.2 yamt break; 3409 1.2.4.2 yamt } 3410 1.2.4.2 yamt 3411 1.2.4.2 yamt out: 3412 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3413 1.2.4.2 yamt return ret; 3414 1.2.4.2 yamt } 3415 1.2.4.2 yamt 3416 1.2.4.2 yamt int drm_mode_connector_attach_encoder(struct drm_connector *connector, 3417 1.2.4.2 yamt struct drm_encoder *encoder) 3418 1.2.4.2 yamt { 3419 1.2.4.2 yamt int i; 3420 1.2.4.2 yamt 3421 1.2.4.2 yamt for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3422 1.2.4.2 yamt if (connector->encoder_ids[i] == 0) { 3423 1.2.4.2 yamt connector->encoder_ids[i] = encoder->base.id; 3424 1.2.4.2 yamt return 0; 3425 1.2.4.2 yamt } 3426 1.2.4.2 yamt } 3427 1.2.4.2 yamt return -ENOMEM; 3428 1.2.4.2 yamt } 3429 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_connector_attach_encoder); 3430 1.2.4.2 yamt 3431 1.2.4.2 yamt void drm_mode_connector_detach_encoder(struct drm_connector *connector, 3432 1.2.4.2 yamt struct drm_encoder *encoder) 3433 1.2.4.2 yamt { 3434 1.2.4.2 yamt int i; 3435 1.2.4.2 yamt for (i = 0; i < DRM_CONNECTOR_MAX_ENCODER; i++) { 3436 1.2.4.2 yamt if (connector->encoder_ids[i] == encoder->base.id) { 3437 1.2.4.2 yamt connector->encoder_ids[i] = 0; 3438 1.2.4.2 yamt if (connector->encoder == encoder) 3439 1.2.4.2 yamt connector->encoder = NULL; 3440 1.2.4.2 yamt break; 3441 1.2.4.2 yamt } 3442 1.2.4.2 yamt } 3443 1.2.4.2 yamt } 3444 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_connector_detach_encoder); 3445 1.2.4.2 yamt 3446 1.2.4.2 yamt int drm_mode_crtc_set_gamma_size(struct drm_crtc *crtc, 3447 1.2.4.2 yamt int gamma_size) 3448 1.2.4.2 yamt { 3449 1.2.4.2 yamt crtc->gamma_size = gamma_size; 3450 1.2.4.2 yamt 3451 1.2.4.2 yamt crtc->gamma_store = kzalloc(gamma_size * sizeof(uint16_t) * 3, GFP_KERNEL); 3452 1.2.4.2 yamt if (!crtc->gamma_store) { 3453 1.2.4.2 yamt crtc->gamma_size = 0; 3454 1.2.4.2 yamt return -ENOMEM; 3455 1.2.4.2 yamt } 3456 1.2.4.2 yamt 3457 1.2.4.2 yamt return 0; 3458 1.2.4.2 yamt } 3459 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_crtc_set_gamma_size); 3460 1.2.4.2 yamt 3461 1.2.4.2 yamt int drm_mode_gamma_set_ioctl(struct drm_device *dev, 3462 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3463 1.2.4.2 yamt { 3464 1.2.4.2 yamt struct drm_mode_crtc_lut *crtc_lut = data; 3465 1.2.4.2 yamt struct drm_mode_object *obj; 3466 1.2.4.2 yamt struct drm_crtc *crtc; 3467 1.2.4.2 yamt void *r_base, *g_base, *b_base; 3468 1.2.4.2 yamt int size; 3469 1.2.4.2 yamt int ret = 0; 3470 1.2.4.2 yamt 3471 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3472 1.2.4.2 yamt return -EINVAL; 3473 1.2.4.2 yamt 3474 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3475 1.2.4.2 yamt obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3476 1.2.4.2 yamt if (!obj) { 3477 1.2.4.2 yamt ret = -EINVAL; 3478 1.2.4.2 yamt goto out; 3479 1.2.4.2 yamt } 3480 1.2.4.2 yamt crtc = obj_to_crtc(obj); 3481 1.2.4.2 yamt 3482 1.2.4.2 yamt if (crtc->funcs->gamma_set == NULL) { 3483 1.2.4.2 yamt ret = -ENOSYS; 3484 1.2.4.2 yamt goto out; 3485 1.2.4.2 yamt } 3486 1.2.4.2 yamt 3487 1.2.4.2 yamt /* memcpy into gamma store */ 3488 1.2.4.2 yamt if (crtc_lut->gamma_size != crtc->gamma_size) { 3489 1.2.4.2 yamt ret = -EINVAL; 3490 1.2.4.2 yamt goto out; 3491 1.2.4.2 yamt } 3492 1.2.4.2 yamt 3493 1.2.4.2 yamt size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3494 1.2.4.2 yamt r_base = crtc->gamma_store; 3495 1.2.4.2 yamt if (copy_from_user(r_base, (void __user *)(unsigned long)crtc_lut->red, size)) { 3496 1.2.4.2 yamt ret = -EFAULT; 3497 1.2.4.2 yamt goto out; 3498 1.2.4.2 yamt } 3499 1.2.4.2 yamt 3500 1.2.4.2 yamt g_base = (char *)r_base + size; 3501 1.2.4.2 yamt if (copy_from_user(g_base, (void __user *)(unsigned long)crtc_lut->green, size)) { 3502 1.2.4.2 yamt ret = -EFAULT; 3503 1.2.4.2 yamt goto out; 3504 1.2.4.2 yamt } 3505 1.2.4.2 yamt 3506 1.2.4.2 yamt b_base = (char *)g_base + size; 3507 1.2.4.2 yamt if (copy_from_user(b_base, (void __user *)(unsigned long)crtc_lut->blue, size)) { 3508 1.2.4.2 yamt ret = -EFAULT; 3509 1.2.4.2 yamt goto out; 3510 1.2.4.2 yamt } 3511 1.2.4.2 yamt 3512 1.2.4.2 yamt crtc->funcs->gamma_set(crtc, r_base, g_base, b_base, 0, crtc->gamma_size); 3513 1.2.4.2 yamt 3514 1.2.4.2 yamt out: 3515 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3516 1.2.4.2 yamt return ret; 3517 1.2.4.2 yamt 3518 1.2.4.2 yamt } 3519 1.2.4.2 yamt 3520 1.2.4.2 yamt int drm_mode_gamma_get_ioctl(struct drm_device *dev, 3521 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3522 1.2.4.2 yamt { 3523 1.2.4.2 yamt struct drm_mode_crtc_lut *crtc_lut = data; 3524 1.2.4.2 yamt struct drm_mode_object *obj; 3525 1.2.4.2 yamt struct drm_crtc *crtc; 3526 1.2.4.2 yamt void *r_base, *g_base, *b_base; 3527 1.2.4.2 yamt int size; 3528 1.2.4.2 yamt int ret = 0; 3529 1.2.4.2 yamt 3530 1.2.4.2 yamt if (!drm_core_check_feature(dev, DRIVER_MODESET)) 3531 1.2.4.2 yamt return -EINVAL; 3532 1.2.4.2 yamt 3533 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3534 1.2.4.2 yamt obj = drm_mode_object_find(dev, crtc_lut->crtc_id, DRM_MODE_OBJECT_CRTC); 3535 1.2.4.2 yamt if (!obj) { 3536 1.2.4.2 yamt ret = -EINVAL; 3537 1.2.4.2 yamt goto out; 3538 1.2.4.2 yamt } 3539 1.2.4.2 yamt crtc = obj_to_crtc(obj); 3540 1.2.4.2 yamt 3541 1.2.4.2 yamt /* memcpy into gamma store */ 3542 1.2.4.2 yamt if (crtc_lut->gamma_size != crtc->gamma_size) { 3543 1.2.4.2 yamt ret = -EINVAL; 3544 1.2.4.2 yamt goto out; 3545 1.2.4.2 yamt } 3546 1.2.4.2 yamt 3547 1.2.4.2 yamt size = crtc_lut->gamma_size * (sizeof(uint16_t)); 3548 1.2.4.2 yamt r_base = crtc->gamma_store; 3549 1.2.4.2 yamt if (copy_to_user((void __user *)(unsigned long)crtc_lut->red, r_base, size)) { 3550 1.2.4.2 yamt ret = -EFAULT; 3551 1.2.4.2 yamt goto out; 3552 1.2.4.2 yamt } 3553 1.2.4.2 yamt 3554 1.2.4.2 yamt g_base = (char *)r_base + size; 3555 1.2.4.2 yamt if (copy_to_user((void __user *)(unsigned long)crtc_lut->green, g_base, size)) { 3556 1.2.4.2 yamt ret = -EFAULT; 3557 1.2.4.2 yamt goto out; 3558 1.2.4.2 yamt } 3559 1.2.4.2 yamt 3560 1.2.4.2 yamt b_base = (char *)g_base + size; 3561 1.2.4.2 yamt if (copy_to_user((void __user *)(unsigned long)crtc_lut->blue, b_base, size)) { 3562 1.2.4.2 yamt ret = -EFAULT; 3563 1.2.4.2 yamt goto out; 3564 1.2.4.2 yamt } 3565 1.2.4.2 yamt out: 3566 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3567 1.2.4.2 yamt return ret; 3568 1.2.4.2 yamt } 3569 1.2.4.2 yamt 3570 1.2.4.2 yamt int drm_mode_page_flip_ioctl(struct drm_device *dev, 3571 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3572 1.2.4.2 yamt { 3573 1.2.4.2 yamt struct drm_mode_crtc_page_flip *page_flip = data; 3574 1.2.4.2 yamt struct drm_mode_object *obj; 3575 1.2.4.2 yamt struct drm_crtc *crtc; 3576 1.2.4.2 yamt struct drm_framebuffer *fb; 3577 1.2.4.2 yamt struct drm_pending_vblank_event *e = NULL; 3578 1.2.4.2 yamt unsigned long flags; 3579 1.2.4.2 yamt int hdisplay, vdisplay; 3580 1.2.4.2 yamt int ret = -EINVAL; 3581 1.2.4.2 yamt 3582 1.2.4.2 yamt if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS || 3583 1.2.4.2 yamt page_flip->reserved != 0) 3584 1.2.4.2 yamt return -EINVAL; 3585 1.2.4.2 yamt 3586 1.2.4.2 yamt mutex_lock(&dev->mode_config.mutex); 3587 1.2.4.2 yamt obj = drm_mode_object_find(dev, page_flip->crtc_id, DRM_MODE_OBJECT_CRTC); 3588 1.2.4.2 yamt if (!obj) 3589 1.2.4.2 yamt goto out; 3590 1.2.4.2 yamt crtc = obj_to_crtc(obj); 3591 1.2.4.2 yamt 3592 1.2.4.2 yamt if (crtc->fb == NULL) { 3593 1.2.4.2 yamt /* The framebuffer is currently unbound, presumably 3594 1.2.4.2 yamt * due to a hotplug event, that userspace has not 3595 1.2.4.2 yamt * yet discovered. 3596 1.2.4.2 yamt */ 3597 1.2.4.2 yamt ret = -EBUSY; 3598 1.2.4.2 yamt goto out; 3599 1.2.4.2 yamt } 3600 1.2.4.2 yamt 3601 1.2.4.2 yamt if (crtc->funcs->page_flip == NULL) 3602 1.2.4.2 yamt goto out; 3603 1.2.4.2 yamt 3604 1.2.4.2 yamt obj = drm_mode_object_find(dev, page_flip->fb_id, DRM_MODE_OBJECT_FB); 3605 1.2.4.2 yamt if (!obj) 3606 1.2.4.2 yamt goto out; 3607 1.2.4.2 yamt fb = obj_to_fb(obj); 3608 1.2.4.2 yamt 3609 1.2.4.2 yamt hdisplay = crtc->mode.hdisplay; 3610 1.2.4.2 yamt vdisplay = crtc->mode.vdisplay; 3611 1.2.4.2 yamt 3612 1.2.4.2 yamt if (crtc->invert_dimensions) 3613 1.2.4.2 yamt swap(hdisplay, vdisplay); 3614 1.2.4.2 yamt 3615 1.2.4.2 yamt if (hdisplay > fb->width || 3616 1.2.4.2 yamt vdisplay > fb->height || 3617 1.2.4.2 yamt crtc->x > fb->width - hdisplay || 3618 1.2.4.2 yamt crtc->y > fb->height - vdisplay) { 3619 1.2.4.2 yamt DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n", 3620 1.2.4.2 yamt fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y, 3621 1.2.4.2 yamt crtc->invert_dimensions ? " (inverted)" : ""); 3622 1.2.4.2 yamt ret = -ENOSPC; 3623 1.2.4.2 yamt goto out; 3624 1.2.4.2 yamt } 3625 1.2.4.2 yamt 3626 1.2.4.2 yamt if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3627 1.2.4.2 yamt ret = -ENOMEM; 3628 1.2.4.2 yamt spin_lock_irqsave(&dev->event_lock, flags); 3629 1.2.4.2 yamt if (file_priv->event_space < sizeof e->event) { 3630 1.2.4.2 yamt spin_unlock_irqrestore(&dev->event_lock, flags); 3631 1.2.4.2 yamt goto out; 3632 1.2.4.2 yamt } 3633 1.2.4.2 yamt file_priv->event_space -= sizeof e->event; 3634 1.2.4.2 yamt spin_unlock_irqrestore(&dev->event_lock, flags); 3635 1.2.4.2 yamt 3636 1.2.4.2 yamt e = kzalloc(sizeof *e, GFP_KERNEL); 3637 1.2.4.2 yamt if (e == NULL) { 3638 1.2.4.2 yamt spin_lock_irqsave(&dev->event_lock, flags); 3639 1.2.4.2 yamt file_priv->event_space += sizeof e->event; 3640 1.2.4.2 yamt spin_unlock_irqrestore(&dev->event_lock, flags); 3641 1.2.4.2 yamt goto out; 3642 1.2.4.2 yamt } 3643 1.2.4.2 yamt 3644 1.2.4.2 yamt e->event.base.type = DRM_EVENT_FLIP_COMPLETE; 3645 1.2.4.2 yamt e->event.base.length = sizeof e->event; 3646 1.2.4.2 yamt e->event.user_data = page_flip->user_data; 3647 1.2.4.2 yamt e->base.event = &e->event.base; 3648 1.2.4.2 yamt e->base.file_priv = file_priv; 3649 1.2.4.2 yamt e->base.destroy = 3650 1.2.4.2 yamt (void (*) (struct drm_pending_event *)) kfree; 3651 1.2.4.2 yamt } 3652 1.2.4.2 yamt 3653 1.2.4.2 yamt ret = crtc->funcs->page_flip(crtc, fb, e); 3654 1.2.4.2 yamt if (ret) { 3655 1.2.4.2 yamt if (page_flip->flags & DRM_MODE_PAGE_FLIP_EVENT) { 3656 1.2.4.2 yamt spin_lock_irqsave(&dev->event_lock, flags); 3657 1.2.4.2 yamt file_priv->event_space += sizeof e->event; 3658 1.2.4.2 yamt spin_unlock_irqrestore(&dev->event_lock, flags); 3659 1.2.4.2 yamt kfree(e); 3660 1.2.4.2 yamt } 3661 1.2.4.2 yamt } 3662 1.2.4.2 yamt 3663 1.2.4.2 yamt out: 3664 1.2.4.2 yamt mutex_unlock(&dev->mode_config.mutex); 3665 1.2.4.2 yamt return ret; 3666 1.2.4.2 yamt } 3667 1.2.4.2 yamt 3668 1.2.4.2 yamt void drm_mode_config_reset(struct drm_device *dev) 3669 1.2.4.2 yamt { 3670 1.2.4.2 yamt struct drm_crtc *crtc; 3671 1.2.4.2 yamt struct drm_encoder *encoder; 3672 1.2.4.2 yamt struct drm_connector *connector; 3673 1.2.4.2 yamt 3674 1.2.4.2 yamt list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) 3675 1.2.4.2 yamt if (crtc->funcs->reset) 3676 1.2.4.2 yamt crtc->funcs->reset(crtc); 3677 1.2.4.2 yamt 3678 1.2.4.2 yamt list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) 3679 1.2.4.2 yamt if (encoder->funcs->reset) 3680 1.2.4.2 yamt encoder->funcs->reset(encoder); 3681 1.2.4.2 yamt 3682 1.2.4.2 yamt list_for_each_entry(connector, &dev->mode_config.connector_list, head) { 3683 1.2.4.2 yamt connector->status = connector_status_unknown; 3684 1.2.4.2 yamt 3685 1.2.4.2 yamt if (connector->funcs->reset) 3686 1.2.4.2 yamt connector->funcs->reset(connector); 3687 1.2.4.2 yamt } 3688 1.2.4.2 yamt } 3689 1.2.4.2 yamt EXPORT_SYMBOL(drm_mode_config_reset); 3690 1.2.4.2 yamt 3691 1.2.4.2 yamt int drm_mode_create_dumb_ioctl(struct drm_device *dev, 3692 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3693 1.2.4.2 yamt { 3694 1.2.4.2 yamt struct drm_mode_create_dumb *args = data; 3695 1.2.4.2 yamt 3696 1.2.4.2 yamt if (!dev->driver->dumb_create) 3697 1.2.4.2 yamt return -ENOSYS; 3698 1.2.4.2 yamt return dev->driver->dumb_create(file_priv, dev, args); 3699 1.2.4.2 yamt } 3700 1.2.4.2 yamt 3701 1.2.4.2 yamt int drm_mode_mmap_dumb_ioctl(struct drm_device *dev, 3702 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3703 1.2.4.2 yamt { 3704 1.2.4.2 yamt struct drm_mode_map_dumb *args = data; 3705 1.2.4.2 yamt 3706 1.2.4.2 yamt /* call driver ioctl to get mmap offset */ 3707 1.2.4.2 yamt if (!dev->driver->dumb_map_offset) 3708 1.2.4.2 yamt return -ENOSYS; 3709 1.2.4.2 yamt 3710 1.2.4.2 yamt return dev->driver->dumb_map_offset(file_priv, dev, args->handle, &args->offset); 3711 1.2.4.2 yamt } 3712 1.2.4.2 yamt 3713 1.2.4.2 yamt int drm_mode_destroy_dumb_ioctl(struct drm_device *dev, 3714 1.2.4.2 yamt void *data, struct drm_file *file_priv) 3715 1.2.4.2 yamt { 3716 1.2.4.2 yamt struct drm_mode_destroy_dumb *args = data; 3717 1.2.4.2 yamt 3718 1.2.4.2 yamt if (!dev->driver->dumb_destroy) 3719 1.2.4.2 yamt return -ENOSYS; 3720 1.2.4.2 yamt 3721 1.2.4.2 yamt return dev->driver->dumb_destroy(file_priv, dev, args->handle); 3722 1.2.4.2 yamt } 3723 1.2.4.2 yamt 3724 1.2.4.2 yamt /* 3725 1.2.4.2 yamt * Just need to support RGB formats here for compat with code that doesn't 3726 1.2.4.2 yamt * use pixel formats directly yet. 3727 1.2.4.2 yamt */ 3728 1.2.4.2 yamt void drm_fb_get_bpp_depth(uint32_t format, unsigned int *depth, 3729 1.2.4.2 yamt int *bpp) 3730 1.2.4.2 yamt { 3731 1.2.4.2 yamt switch (format) { 3732 1.2.4.2 yamt case DRM_FORMAT_RGB332: 3733 1.2.4.2 yamt case DRM_FORMAT_BGR233: 3734 1.2.4.2 yamt *depth = 8; 3735 1.2.4.2 yamt *bpp = 8; 3736 1.2.4.2 yamt break; 3737 1.2.4.2 yamt case DRM_FORMAT_XRGB1555: 3738 1.2.4.2 yamt case DRM_FORMAT_XBGR1555: 3739 1.2.4.2 yamt case DRM_FORMAT_RGBX5551: 3740 1.2.4.2 yamt case DRM_FORMAT_BGRX5551: 3741 1.2.4.2 yamt case DRM_FORMAT_ARGB1555: 3742 1.2.4.2 yamt case DRM_FORMAT_ABGR1555: 3743 1.2.4.2 yamt case DRM_FORMAT_RGBA5551: 3744 1.2.4.2 yamt case DRM_FORMAT_BGRA5551: 3745 1.2.4.2 yamt *depth = 15; 3746 1.2.4.2 yamt *bpp = 16; 3747 1.2.4.2 yamt break; 3748 1.2.4.2 yamt case DRM_FORMAT_RGB565: 3749 1.2.4.2 yamt case DRM_FORMAT_BGR565: 3750 1.2.4.2 yamt *depth = 16; 3751 1.2.4.2 yamt *bpp = 16; 3752 1.2.4.2 yamt break; 3753 1.2.4.2 yamt case DRM_FORMAT_RGB888: 3754 1.2.4.2 yamt case DRM_FORMAT_BGR888: 3755 1.2.4.2 yamt *depth = 24; 3756 1.2.4.2 yamt *bpp = 24; 3757 1.2.4.2 yamt break; 3758 1.2.4.2 yamt case DRM_FORMAT_XRGB8888: 3759 1.2.4.2 yamt case DRM_FORMAT_XBGR8888: 3760 1.2.4.2 yamt case DRM_FORMAT_RGBX8888: 3761 1.2.4.2 yamt case DRM_FORMAT_BGRX8888: 3762 1.2.4.2 yamt *depth = 24; 3763 1.2.4.2 yamt *bpp = 32; 3764 1.2.4.2 yamt break; 3765 1.2.4.2 yamt case DRM_FORMAT_XRGB2101010: 3766 1.2.4.2 yamt case DRM_FORMAT_XBGR2101010: 3767 1.2.4.2 yamt case DRM_FORMAT_RGBX1010102: 3768 1.2.4.2 yamt case DRM_FORMAT_BGRX1010102: 3769 1.2.4.2 yamt case DRM_FORMAT_ARGB2101010: 3770 1.2.4.2 yamt case DRM_FORMAT_ABGR2101010: 3771 1.2.4.2 yamt case DRM_FORMAT_RGBA1010102: 3772 1.2.4.2 yamt case DRM_FORMAT_BGRA1010102: 3773 1.2.4.2 yamt *depth = 30; 3774 1.2.4.2 yamt *bpp = 32; 3775 1.2.4.2 yamt break; 3776 1.2.4.2 yamt case DRM_FORMAT_ARGB8888: 3777 1.2.4.2 yamt case DRM_FORMAT_ABGR8888: 3778 1.2.4.2 yamt case DRM_FORMAT_RGBA8888: 3779 1.2.4.2 yamt case DRM_FORMAT_BGRA8888: 3780 1.2.4.2 yamt *depth = 32; 3781 1.2.4.2 yamt *bpp = 32; 3782 1.2.4.2 yamt break; 3783 1.2.4.2 yamt default: 3784 1.2.4.2 yamt DRM_DEBUG_KMS("unsupported pixel format\n"); 3785 1.2.4.2 yamt *depth = 0; 3786 1.2.4.2 yamt *bpp = 0; 3787 1.2.4.2 yamt break; 3788 1.2.4.2 yamt } 3789 1.2.4.2 yamt } 3790 1.2.4.2 yamt EXPORT_SYMBOL(drm_fb_get_bpp_depth); 3791 1.2.4.2 yamt 3792 1.2.4.2 yamt /** 3793 1.2.4.2 yamt * drm_format_num_planes - get the number of planes for format 3794 1.2.4.2 yamt * @format: pixel format (DRM_FORMAT_*) 3795 1.2.4.2 yamt * 3796 1.2.4.2 yamt * RETURNS: 3797 1.2.4.2 yamt * The number of planes used by the specified pixel format. 3798 1.2.4.2 yamt */ 3799 1.2.4.2 yamt int drm_format_num_planes(uint32_t format) 3800 1.2.4.2 yamt { 3801 1.2.4.2 yamt switch (format) { 3802 1.2.4.2 yamt case DRM_FORMAT_YUV410: 3803 1.2.4.2 yamt case DRM_FORMAT_YVU410: 3804 1.2.4.2 yamt case DRM_FORMAT_YUV411: 3805 1.2.4.2 yamt case DRM_FORMAT_YVU411: 3806 1.2.4.2 yamt case DRM_FORMAT_YUV420: 3807 1.2.4.2 yamt case DRM_FORMAT_YVU420: 3808 1.2.4.2 yamt case DRM_FORMAT_YUV422: 3809 1.2.4.2 yamt case DRM_FORMAT_YVU422: 3810 1.2.4.2 yamt case DRM_FORMAT_YUV444: 3811 1.2.4.2 yamt case DRM_FORMAT_YVU444: 3812 1.2.4.2 yamt return 3; 3813 1.2.4.2 yamt case DRM_FORMAT_NV12: 3814 1.2.4.2 yamt case DRM_FORMAT_NV21: 3815 1.2.4.2 yamt case DRM_FORMAT_NV16: 3816 1.2.4.2 yamt case DRM_FORMAT_NV61: 3817 1.2.4.2 yamt case DRM_FORMAT_NV24: 3818 1.2.4.2 yamt case DRM_FORMAT_NV42: 3819 1.2.4.2 yamt return 2; 3820 1.2.4.2 yamt default: 3821 1.2.4.2 yamt return 1; 3822 1.2.4.2 yamt } 3823 1.2.4.2 yamt } 3824 1.2.4.2 yamt EXPORT_SYMBOL(drm_format_num_planes); 3825 1.2.4.2 yamt 3826 1.2.4.2 yamt /** 3827 1.2.4.2 yamt * drm_format_plane_cpp - determine the bytes per pixel value 3828 1.2.4.2 yamt * @format: pixel format (DRM_FORMAT_*) 3829 1.2.4.2 yamt * @plane: plane index 3830 1.2.4.2 yamt * 3831 1.2.4.2 yamt * RETURNS: 3832 1.2.4.2 yamt * The bytes per pixel value for the specified plane. 3833 1.2.4.2 yamt */ 3834 1.2.4.2 yamt int drm_format_plane_cpp(uint32_t format, int plane) 3835 1.2.4.2 yamt { 3836 1.2.4.2 yamt unsigned int depth; 3837 1.2.4.2 yamt int bpp; 3838 1.2.4.2 yamt 3839 1.2.4.2 yamt if (plane >= drm_format_num_planes(format)) 3840 1.2.4.2 yamt return 0; 3841 1.2.4.2 yamt 3842 1.2.4.2 yamt switch (format) { 3843 1.2.4.2 yamt case DRM_FORMAT_YUYV: 3844 1.2.4.2 yamt case DRM_FORMAT_YVYU: 3845 1.2.4.2 yamt case DRM_FORMAT_UYVY: 3846 1.2.4.2 yamt case DRM_FORMAT_VYUY: 3847 1.2.4.2 yamt return 2; 3848 1.2.4.2 yamt case DRM_FORMAT_NV12: 3849 1.2.4.2 yamt case DRM_FORMAT_NV21: 3850 1.2.4.2 yamt case DRM_FORMAT_NV16: 3851 1.2.4.2 yamt case DRM_FORMAT_NV61: 3852 1.2.4.2 yamt case DRM_FORMAT_NV24: 3853 1.2.4.2 yamt case DRM_FORMAT_NV42: 3854 1.2.4.2 yamt return plane ? 2 : 1; 3855 1.2.4.2 yamt case DRM_FORMAT_YUV410: 3856 1.2.4.2 yamt case DRM_FORMAT_YVU410: 3857 1.2.4.2 yamt case DRM_FORMAT_YUV411: 3858 1.2.4.2 yamt case DRM_FORMAT_YVU411: 3859 1.2.4.2 yamt case DRM_FORMAT_YUV420: 3860 1.2.4.2 yamt case DRM_FORMAT_YVU420: 3861 1.2.4.2 yamt case DRM_FORMAT_YUV422: 3862 1.2.4.2 yamt case DRM_FORMAT_YVU422: 3863 1.2.4.2 yamt case DRM_FORMAT_YUV444: 3864 1.2.4.2 yamt case DRM_FORMAT_YVU444: 3865 1.2.4.2 yamt return 1; 3866 1.2.4.2 yamt default: 3867 1.2.4.2 yamt drm_fb_get_bpp_depth(format, &depth, &bpp); 3868 1.2.4.2 yamt return bpp >> 3; 3869 1.2.4.2 yamt } 3870 1.2.4.2 yamt } 3871 1.2.4.2 yamt EXPORT_SYMBOL(drm_format_plane_cpp); 3872 1.2.4.2 yamt 3873 1.2.4.2 yamt /** 3874 1.2.4.2 yamt * drm_format_horz_chroma_subsampling - get the horizontal chroma subsampling factor 3875 1.2.4.2 yamt * @format: pixel format (DRM_FORMAT_*) 3876 1.2.4.2 yamt * 3877 1.2.4.2 yamt * RETURNS: 3878 1.2.4.2 yamt * The horizontal chroma subsampling factor for the 3879 1.2.4.2 yamt * specified pixel format. 3880 1.2.4.2 yamt */ 3881 1.2.4.2 yamt int drm_format_horz_chroma_subsampling(uint32_t format) 3882 1.2.4.2 yamt { 3883 1.2.4.2 yamt switch (format) { 3884 1.2.4.2 yamt case DRM_FORMAT_YUV411: 3885 1.2.4.2 yamt case DRM_FORMAT_YVU411: 3886 1.2.4.2 yamt case DRM_FORMAT_YUV410: 3887 1.2.4.2 yamt case DRM_FORMAT_YVU410: 3888 1.2.4.2 yamt return 4; 3889 1.2.4.2 yamt case DRM_FORMAT_YUYV: 3890 1.2.4.2 yamt case DRM_FORMAT_YVYU: 3891 1.2.4.2 yamt case DRM_FORMAT_UYVY: 3892 1.2.4.2 yamt case DRM_FORMAT_VYUY: 3893 1.2.4.2 yamt case DRM_FORMAT_NV12: 3894 1.2.4.2 yamt case DRM_FORMAT_NV21: 3895 1.2.4.2 yamt case DRM_FORMAT_NV16: 3896 1.2.4.2 yamt case DRM_FORMAT_NV61: 3897 1.2.4.2 yamt case DRM_FORMAT_YUV422: 3898 1.2.4.2 yamt case DRM_FORMAT_YVU422: 3899 1.2.4.2 yamt case DRM_FORMAT_YUV420: 3900 1.2.4.2 yamt case DRM_FORMAT_YVU420: 3901 1.2.4.2 yamt return 2; 3902 1.2.4.2 yamt default: 3903 1.2.4.2 yamt return 1; 3904 1.2.4.2 yamt } 3905 1.2.4.2 yamt } 3906 1.2.4.2 yamt EXPORT_SYMBOL(drm_format_horz_chroma_subsampling); 3907 1.2.4.2 yamt 3908 1.2.4.2 yamt /** 3909 1.2.4.2 yamt * drm_format_vert_chroma_subsampling - get the vertical chroma subsampling factor 3910 1.2.4.2 yamt * @format: pixel format (DRM_FORMAT_*) 3911 1.2.4.2 yamt * 3912 1.2.4.2 yamt * RETURNS: 3913 1.2.4.2 yamt * The vertical chroma subsampling factor for the 3914 1.2.4.2 yamt * specified pixel format. 3915 1.2.4.2 yamt */ 3916 1.2.4.2 yamt int drm_format_vert_chroma_subsampling(uint32_t format) 3917 1.2.4.2 yamt { 3918 1.2.4.2 yamt switch (format) { 3919 1.2.4.2 yamt case DRM_FORMAT_YUV410: 3920 1.2.4.2 yamt case DRM_FORMAT_YVU410: 3921 1.2.4.2 yamt return 4; 3922 1.2.4.2 yamt case DRM_FORMAT_YUV420: 3923 1.2.4.2 yamt case DRM_FORMAT_YVU420: 3924 1.2.4.2 yamt case DRM_FORMAT_NV12: 3925 1.2.4.2 yamt case DRM_FORMAT_NV21: 3926 1.2.4.2 yamt return 2; 3927 1.2.4.2 yamt default: 3928 1.2.4.2 yamt return 1; 3929 1.2.4.2 yamt } 3930 1.2.4.2 yamt } 3931 1.2.4.2 yamt EXPORT_SYMBOL(drm_format_vert_chroma_subsampling); 3932
Indexes created Tue Oct 21 16:10:11 GMT 2025