Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 1 | /* |
| 2 | * \file xf86drmMode.c |
| 3 | * Header for DRM modesetting interface. |
| 4 | * |
| 5 | * \author Jakob Bornecrantz <wallbraker@gmail.com> |
| 6 | * |
| 7 | * \par Acknowledgements: |
| 8 | * Feb 2007, Dave Airlie <airlied@linux.ie> |
| 9 | */ |
| 10 | |
| 11 | /* |
| 12 | * Copyright (c) 2007-2008 Tungsten Graphics, Inc., Cedar Park, Texas. |
| 13 | * Copyright (c) 2007-2008 Dave Airlie <airlied@linux.ie> |
| 14 | * Copyright (c) 2007-2008 Jakob Bornecrantz <wallbraker@gmail.com> |
| 15 | * |
| 16 | * Permission is hereby granted, free of charge, to any person obtaining a |
| 17 | * copy of this software and associated documentation files (the "Software"), |
| 18 | * to deal in the Software without restriction, including without limitation |
| 19 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, |
| 20 | * and/or sell copies of the Software, and to permit persons to whom the |
| 21 | * Software is furnished to do so, subject to the following conditions: |
| 22 | * |
| 23 | * The above copyright notice and this permission notice shall be included in |
| 24 | * all copies or substantial portions of the Software. |
| 25 | * |
| 26 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
| 27 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
| 28 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
| 29 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
| 30 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
| 31 | * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS |
| 32 | * IN THE SOFTWARE. |
| 33 | * |
| 34 | */ |
| 35 | |
| 36 | /* |
| 37 | * TODO the types we are after are defined in diffrent headers on diffrent |
| 38 | * platforms find which headers to include to get uint32_t |
| 39 | */ |
| 40 | #include <stdint.h> |
| 41 | #include <sys/ioctl.h> |
| 42 | #include <stdio.h> |
| 43 | |
| 44 | #include "xf86drmMode.h" |
| 45 | #include "xf86drm.h" |
| 46 | #include <drm.h> |
| 47 | #include <string.h> |
| 48 | #include <dirent.h> |
| 49 | #include <errno.h> |
| 50 | |
| 51 | #define U642VOID(x) ((void *)(unsigned long)(x)) |
| 52 | #define VOID2U64(x) ((uint64_t)(unsigned long)(x)) |
| 53 | |
| 54 | /* |
| 55 | * Util functions |
| 56 | */ |
| 57 | |
| 58 | void* drmAllocCpy(void *array, int count, int entry_size) |
| 59 | { |
| 60 | char *r; |
| 61 | int i; |
| 62 | |
| 63 | if (!count || !array || !entry_size) |
| 64 | return 0; |
| 65 | |
| 66 | if (!(r = drmMalloc(count*entry_size))) |
| 67 | return 0; |
| 68 | |
| 69 | for (i = 0; i < count; i++) |
| 70 | memcpy(r+(entry_size*i), array+(entry_size*i), entry_size); |
| 71 | |
| 72 | return r; |
| 73 | } |
| 74 | |
| 75 | /* |
| 76 | * A couple of free functions. |
| 77 | */ |
| 78 | |
| 79 | void drmModeFreeModeInfo(drmModeModeInfoPtr ptr) |
| 80 | { |
| 81 | if (!ptr) |
| 82 | return; |
| 83 | |
| 84 | drmFree(ptr); |
| 85 | } |
| 86 | |
| 87 | void drmModeFreeResources(drmModeResPtr ptr) |
| 88 | { |
| 89 | if (!ptr) |
| 90 | return; |
| 91 | |
| 92 | drmFree(ptr); |
| 93 | |
| 94 | } |
| 95 | |
| 96 | void drmModeFreeFB(drmModeFBPtr ptr) |
| 97 | { |
| 98 | if (!ptr) |
| 99 | return; |
| 100 | |
| 101 | /* we might add more frees later. */ |
| 102 | drmFree(ptr); |
| 103 | } |
| 104 | |
| 105 | void drmModeFreeCrtc(drmModeCrtcPtr ptr) |
| 106 | { |
| 107 | if (!ptr) |
| 108 | return; |
| 109 | |
| 110 | drmFree(ptr); |
| 111 | |
| 112 | } |
| 113 | |
| 114 | void drmModeFreeConnector(drmModeConnectorPtr ptr) |
| 115 | { |
| 116 | if (!ptr) |
| 117 | return; |
| 118 | |
| 119 | drmFree(ptr->encoders); |
| 120 | drmFree(ptr->prop_values); |
| 121 | drmFree(ptr->props); |
| 122 | drmFree(ptr->modes); |
| 123 | drmFree(ptr); |
| 124 | |
| 125 | } |
| 126 | |
| 127 | void drmModeFreeEncoder(drmModeEncoderPtr ptr) |
| 128 | { |
| 129 | drmFree(ptr); |
| 130 | } |
| 131 | |
| 132 | /* |
| 133 | * ModeSetting functions. |
| 134 | */ |
| 135 | |
| 136 | drmModeResPtr drmModeGetResources(int fd) |
| 137 | { |
| 138 | struct drm_mode_card_res res; |
| 139 | drmModeResPtr r = 0; |
| 140 | |
| 141 | memset(&res, 0, sizeof(struct drm_mode_card_res)); |
| 142 | |
| 143 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) |
| 144 | return 0; |
| 145 | |
| 146 | if (res.count_fbs) |
| 147 | res.fb_id_ptr = VOID2U64(drmMalloc(res.count_fbs*sizeof(uint32_t))); |
| 148 | if (res.count_crtcs) |
| 149 | res.crtc_id_ptr = VOID2U64(drmMalloc(res.count_crtcs*sizeof(uint32_t))); |
| 150 | if (res.count_connectors) |
| 151 | res.connector_id_ptr = VOID2U64(drmMalloc(res.count_connectors*sizeof(uint32_t))); |
| 152 | if (res.count_encoders) |
| 153 | res.encoder_id_ptr = VOID2U64(drmMalloc(res.count_encoders*sizeof(uint32_t))); |
| 154 | |
| 155 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETRESOURCES, &res)) { |
| 156 | r = NULL; |
| 157 | goto err_allocs; |
| 158 | } |
| 159 | |
| 160 | /* |
| 161 | * return |
| 162 | */ |
| 163 | |
| 164 | |
| 165 | if (!(r = drmMalloc(sizeof(*r)))) |
| 166 | return 0; |
| 167 | |
| 168 | r->min_width = res.min_width; |
| 169 | r->max_width = res.max_width; |
| 170 | r->min_height = res.min_height; |
| 171 | r->max_height = res.max_height; |
| 172 | r->count_fbs = res.count_fbs; |
| 173 | r->count_crtcs = res.count_crtcs; |
| 174 | r->count_connectors = res.count_connectors; |
| 175 | r->count_encoders = res.count_encoders; |
| 176 | /* TODO we realy should test if these allocs fails. */ |
| 177 | r->fbs = drmAllocCpy(U642VOID(res.fb_id_ptr), res.count_fbs, sizeof(uint32_t)); |
| 178 | r->crtcs = drmAllocCpy(U642VOID(res.crtc_id_ptr), res.count_crtcs, sizeof(uint32_t)); |
| 179 | r->connectors = drmAllocCpy(U642VOID(res.connector_id_ptr), res.count_connectors, sizeof(uint32_t)); |
| 180 | r->encoders = drmAllocCpy(U642VOID(res.encoder_id_ptr), res.count_encoders, sizeof(uint32_t)); |
| 181 | |
| 182 | err_allocs: |
| 183 | drmFree(U642VOID(res.fb_id_ptr)); |
| 184 | drmFree(U642VOID(res.crtc_id_ptr)); |
| 185 | drmFree(U642VOID(res.connector_id_ptr)); |
| 186 | drmFree(U642VOID(res.encoder_id_ptr)); |
| 187 | |
| 188 | return r; |
| 189 | } |
| 190 | |
| 191 | int drmModeAddFB(int fd, uint32_t width, uint32_t height, uint8_t depth, |
| 192 | uint8_t bpp, uint32_t pitch, uint32_t bo_handle, |
| 193 | uint32_t *buf_id) |
| 194 | { |
| 195 | struct drm_mode_fb_cmd f; |
| 196 | int ret; |
| 197 | |
| 198 | f.width = width; |
| 199 | f.height = height; |
| 200 | f.pitch = pitch; |
| 201 | f.bpp = bpp; |
| 202 | f.depth = depth; |
| 203 | f.handle = bo_handle; |
| 204 | |
| 205 | if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_ADDFB, &f))) |
| 206 | return ret; |
| 207 | |
| 208 | *buf_id = f.fb_id; |
| 209 | return 0; |
| 210 | } |
| 211 | |
| 212 | int drmModeRmFB(int fd, uint32_t bufferId) |
| 213 | { |
| 214 | return drmIoctl(fd, DRM_IOCTL_MODE_RMFB, &bufferId); |
| 215 | |
| 216 | |
| 217 | } |
| 218 | |
| 219 | drmModeFBPtr drmModeGetFB(int fd, uint32_t buf) |
| 220 | { |
| 221 | struct drm_mode_fb_cmd info; |
| 222 | drmModeFBPtr r; |
| 223 | |
| 224 | info.fb_id = buf; |
| 225 | |
| 226 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETFB, &info)) |
| 227 | return NULL; |
| 228 | |
| 229 | if (!(r = drmMalloc(sizeof(*r)))) |
| 230 | return NULL; |
| 231 | |
| 232 | r->fb_id = info.fb_id; |
| 233 | r->width = info.width; |
| 234 | r->height = info.height; |
| 235 | r->pitch = info.pitch; |
| 236 | r->bpp = info.bpp; |
| 237 | r->handle = info.handle; |
| 238 | r->depth = info.depth; |
| 239 | |
| 240 | return r; |
| 241 | } |
| 242 | |
| 243 | |
| 244 | /* |
| 245 | * Crtc functions |
| 246 | */ |
| 247 | |
| 248 | drmModeCrtcPtr drmModeGetCrtc(int fd, uint32_t crtcId) |
| 249 | { |
| 250 | struct drm_mode_crtc crtc; |
| 251 | drmModeCrtcPtr r; |
| 252 | |
| 253 | crtc.crtc_id = crtcId; |
| 254 | |
| 255 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETCRTC, &crtc)) |
| 256 | return 0; |
| 257 | |
| 258 | /* |
| 259 | * return |
| 260 | */ |
| 261 | |
| 262 | if (!(r = drmMalloc(sizeof(*r)))) |
| 263 | return 0; |
| 264 | |
| 265 | r->crtc_id = crtc.crtc_id; |
| 266 | r->x = crtc.x; |
| 267 | r->y = crtc.y; |
| 268 | r->mode_valid = crtc.mode_valid; |
| 269 | if (r->mode_valid) |
| 270 | memcpy(&r->mode, &crtc.mode, sizeof(struct drm_mode_modeinfo)); |
| 271 | r->buffer_id = crtc.fb_id; |
| 272 | r->gamma_size = crtc.gamma_size; |
| 273 | return r; |
| 274 | } |
| 275 | |
| 276 | |
| 277 | int drmModeSetCrtc(int fd, uint32_t crtcId, uint32_t bufferId, |
| 278 | uint32_t x, uint32_t y, uint32_t *connectors, int count, |
| 279 | drmModeModeInfoPtr mode) |
| 280 | { |
| 281 | struct drm_mode_crtc crtc; |
| 282 | |
| 283 | crtc.x = x; |
| 284 | crtc.y = y; |
| 285 | crtc.crtc_id = crtcId; |
| 286 | crtc.fb_id = bufferId; |
| 287 | crtc.set_connectors_ptr = VOID2U64(connectors); |
| 288 | crtc.count_connectors = count; |
| 289 | if (mode) { |
| 290 | memcpy(&crtc.mode, mode, sizeof(struct drm_mode_modeinfo)); |
| 291 | crtc.mode_valid = 1; |
| 292 | } else |
| 293 | crtc.mode_valid = 0; |
| 294 | |
| 295 | return drmIoctl(fd, DRM_IOCTL_MODE_SETCRTC, &crtc); |
| 296 | } |
| 297 | |
| 298 | /* |
| 299 | * Cursor manipulation |
| 300 | */ |
| 301 | |
| 302 | int drmModeSetCursor(int fd, uint32_t crtcId, uint32_t bo_handle, uint32_t width, uint32_t height) |
| 303 | { |
| 304 | struct drm_mode_cursor arg; |
| 305 | |
| 306 | arg.flags = DRM_MODE_CURSOR_BO; |
| 307 | arg.crtc_id = crtcId; |
| 308 | arg.width = width; |
| 309 | arg.height = height; |
| 310 | arg.handle = bo_handle; |
| 311 | |
| 312 | return drmIoctl(fd, DRM_IOCTL_MODE_CURSOR, &arg); |
| 313 | } |
| 314 | |
| 315 | int drmModeMoveCursor(int fd, uint32_t crtcId, int x, int y) |
| 316 | { |
| 317 | struct drm_mode_cursor arg; |
| 318 | |
| 319 | arg.flags = DRM_MODE_CURSOR_MOVE; |
| 320 | arg.crtc_id = crtcId; |
| 321 | arg.x = x; |
| 322 | arg.y = y; |
| 323 | |
| 324 | return drmIoctl(fd, DRM_IOCTL_MODE_CURSOR, &arg); |
| 325 | } |
| 326 | |
| 327 | /* |
| 328 | * Encoder get |
| 329 | */ |
| 330 | drmModeEncoderPtr drmModeGetEncoder(int fd, uint32_t encoder_id) |
| 331 | { |
| 332 | struct drm_mode_get_encoder enc; |
| 333 | drmModeEncoderPtr r = NULL; |
| 334 | |
| 335 | enc.encoder_id = encoder_id; |
| 336 | enc.encoder_type = 0; |
| 337 | enc.possible_crtcs = 0; |
| 338 | enc.possible_clones = 0; |
| 339 | |
| 340 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETENCODER, &enc)) |
| 341 | return 0; |
| 342 | |
| 343 | if (!(r = drmMalloc(sizeof(*r)))) |
| 344 | return 0; |
| 345 | |
| 346 | r->encoder_id = enc.encoder_id; |
| 347 | r->crtc_id = enc.crtc_id; |
| 348 | r->encoder_type = enc.encoder_type; |
| 349 | r->possible_crtcs = enc.possible_crtcs; |
| 350 | r->possible_clones = enc.possible_clones; |
| 351 | |
| 352 | return r; |
| 353 | } |
| 354 | |
| 355 | /* |
| 356 | * Connector manipulation |
| 357 | */ |
| 358 | |
| 359 | drmModeConnectorPtr drmModeGetConnector(int fd, uint32_t connector_id) |
| 360 | { |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 361 | struct drm_mode_get_connector conn, counts; |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 362 | drmModeConnectorPtr r = NULL; |
| 363 | |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 364 | retry: |
| 365 | memset(&conn, 0, sizeof(struct drm_mode_get_connector)); |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 366 | conn.connector_id = connector_id; |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 367 | |
| 368 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn)) |
| 369 | return 0; |
| 370 | |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 371 | counts = conn; |
| 372 | |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 373 | if (conn.count_props) { |
| 374 | conn.props_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint32_t))); |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 375 | if (!conn.props_ptr) |
| 376 | goto err_allocs; |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 377 | conn.prop_values_ptr = VOID2U64(drmMalloc(conn.count_props*sizeof(uint64_t))); |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 378 | if (!conn.prop_values_ptr) |
| 379 | goto err_allocs; |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 380 | } |
| 381 | |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 382 | if (conn.count_modes) { |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 383 | conn.modes_ptr = VOID2U64(drmMalloc(conn.count_modes*sizeof(struct drm_mode_modeinfo))); |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 384 | if (!conn.modes_ptr) |
| 385 | goto err_allocs; |
| 386 | } |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 387 | |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 388 | if (conn.count_encoders) { |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 389 | conn.encoders_ptr = VOID2U64(drmMalloc(conn.count_encoders*sizeof(uint32_t))); |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 390 | if (!conn.encoders_ptr) |
| 391 | goto err_allocs; |
| 392 | } |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 393 | |
| 394 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETCONNECTOR, &conn)) |
| 395 | goto err_allocs; |
| 396 | |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 397 | /* The number of available connectors and etc may have changed with a |
| 398 | * hotplug event in between the ioctls, in which case the field is |
| 399 | * silently ignored by the kernel. |
| 400 | */ |
| 401 | if (counts.count_props < conn.count_props || |
| 402 | counts.count_modes < conn.count_modes || |
| 403 | counts.count_encoders < conn.count_encoders) { |
| 404 | drmFree(U642VOID(conn.props_ptr)); |
| 405 | drmFree(U642VOID(conn.prop_values_ptr)); |
| 406 | drmFree(U642VOID(conn.modes_ptr)); |
| 407 | drmFree(U642VOID(conn.encoders_ptr)); |
| 408 | |
| 409 | goto retry; |
| 410 | } |
| 411 | |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 412 | if(!(r = drmMalloc(sizeof(*r)))) { |
| 413 | goto err_allocs; |
| 414 | } |
| 415 | |
| 416 | r->connector_id = conn.connector_id; |
| 417 | r->encoder_id = conn.encoder_id; |
| 418 | r->connection = conn.connection; |
| 419 | r->mmWidth = conn.mm_width; |
| 420 | r->mmHeight = conn.mm_height; |
| 421 | /* convert subpixel from kernel to userspace */ |
| 422 | r->subpixel = conn.subpixel + 1; |
| 423 | r->count_modes = conn.count_modes; |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 424 | r->count_props = conn.count_props; |
| 425 | r->props = drmAllocCpy(U642VOID(conn.props_ptr), conn.count_props, sizeof(uint32_t)); |
| 426 | r->prop_values = drmAllocCpy(U642VOID(conn.prop_values_ptr), conn.count_props, sizeof(uint64_t)); |
| 427 | r->modes = drmAllocCpy(U642VOID(conn.modes_ptr), conn.count_modes, sizeof(struct drm_mode_modeinfo)); |
| 428 | r->count_encoders = conn.count_encoders; |
| 429 | r->encoders = drmAllocCpy(U642VOID(conn.encoders_ptr), conn.count_encoders, sizeof(uint32_t)); |
| 430 | r->connector_type = conn.connector_type; |
| 431 | r->connector_type_id = conn.connector_type_id; |
| 432 | |
Tan Wei | 20e32a0 | 2014-04-25 10:31:57 +0800 | [diff] [blame] | 433 | if ((r->count_props && !r->props) || |
| 434 | (r->count_props && !r->prop_values) || |
| 435 | (r->count_modes && !r->modes) || |
| 436 | (r->count_encoders && !r->encoders)) { |
| 437 | drmFree(r->props); |
| 438 | drmFree(r->prop_values); |
| 439 | drmFree(r->modes); |
| 440 | drmFree(r->encoders); |
| 441 | drmFree(r); |
| 442 | r = 0; |
| 443 | } |
Ho-Eun Ryu | f0352d4 | 2010-01-04 17:28:06 +0900 | [diff] [blame] | 444 | |
| 445 | err_allocs: |
| 446 | drmFree(U642VOID(conn.prop_values_ptr)); |
| 447 | drmFree(U642VOID(conn.props_ptr)); |
| 448 | drmFree(U642VOID(conn.modes_ptr)); |
| 449 | drmFree(U642VOID(conn.encoders_ptr)); |
| 450 | |
| 451 | return r; |
| 452 | } |
| 453 | |
| 454 | int drmModeAttachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info) |
| 455 | { |
| 456 | struct drm_mode_mode_cmd res; |
| 457 | |
| 458 | memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo)); |
| 459 | res.connector_id = connector_id; |
| 460 | |
| 461 | return drmIoctl(fd, DRM_IOCTL_MODE_ATTACHMODE, &res); |
| 462 | } |
| 463 | |
| 464 | int drmModeDetachMode(int fd, uint32_t connector_id, drmModeModeInfoPtr mode_info) |
| 465 | { |
| 466 | struct drm_mode_mode_cmd res; |
| 467 | |
| 468 | memcpy(&res.mode, mode_info, sizeof(struct drm_mode_modeinfo)); |
| 469 | res.connector_id = connector_id; |
| 470 | |
| 471 | return drmIoctl(fd, DRM_IOCTL_MODE_DETACHMODE, &res); |
| 472 | } |
| 473 | |
| 474 | |
| 475 | drmModePropertyPtr drmModeGetProperty(int fd, uint32_t property_id) |
| 476 | { |
| 477 | struct drm_mode_get_property prop; |
| 478 | drmModePropertyPtr r; |
| 479 | |
| 480 | prop.prop_id = property_id; |
| 481 | prop.count_enum_blobs = 0; |
| 482 | prop.count_values = 0; |
| 483 | prop.flags = 0; |
| 484 | prop.enum_blob_ptr = 0; |
| 485 | prop.values_ptr = 0; |
| 486 | |
| 487 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) |
| 488 | return 0; |
| 489 | |
| 490 | if (prop.count_values) |
| 491 | prop.values_ptr = VOID2U64(drmMalloc(prop.count_values * sizeof(uint64_t))); |
| 492 | |
| 493 | if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_ENUM)) |
| 494 | prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(struct drm_mode_property_enum))); |
| 495 | |
| 496 | if (prop.count_enum_blobs && (prop.flags & DRM_MODE_PROP_BLOB)) { |
| 497 | prop.values_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t))); |
| 498 | prop.enum_blob_ptr = VOID2U64(drmMalloc(prop.count_enum_blobs * sizeof(uint32_t))); |
| 499 | } |
| 500 | |
| 501 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPERTY, &prop)) { |
| 502 | r = NULL; |
| 503 | goto err_allocs; |
| 504 | } |
| 505 | |
| 506 | if (!(r = drmMalloc(sizeof(*r)))) |
| 507 | return NULL; |
| 508 | |
| 509 | r->prop_id = prop.prop_id; |
| 510 | r->count_values = prop.count_values; |
| 511 | |
| 512 | r->flags = prop.flags; |
| 513 | if (prop.count_values) |
| 514 | r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_values, sizeof(uint64_t)); |
| 515 | if (prop.flags & DRM_MODE_PROP_ENUM) { |
| 516 | r->count_enums = prop.count_enum_blobs; |
| 517 | r->enums = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(struct drm_mode_property_enum)); |
| 518 | } else if (prop.flags & DRM_MODE_PROP_BLOB) { |
| 519 | r->values = drmAllocCpy(U642VOID(prop.values_ptr), prop.count_enum_blobs, sizeof(uint32_t)); |
| 520 | r->blob_ids = drmAllocCpy(U642VOID(prop.enum_blob_ptr), prop.count_enum_blobs, sizeof(uint32_t)); |
| 521 | r->count_blobs = prop.count_enum_blobs; |
| 522 | } |
| 523 | strncpy(r->name, prop.name, DRM_PROP_NAME_LEN); |
| 524 | r->name[DRM_PROP_NAME_LEN-1] = 0; |
| 525 | |
| 526 | err_allocs: |
| 527 | drmFree(U642VOID(prop.values_ptr)); |
| 528 | drmFree(U642VOID(prop.enum_blob_ptr)); |
| 529 | |
| 530 | return r; |
| 531 | } |
| 532 | |
| 533 | void drmModeFreeProperty(drmModePropertyPtr ptr) |
| 534 | { |
| 535 | if (!ptr) |
| 536 | return; |
| 537 | |
| 538 | drmFree(ptr->values); |
| 539 | drmFree(ptr->enums); |
| 540 | drmFree(ptr); |
| 541 | } |
| 542 | |
| 543 | drmModePropertyBlobPtr drmModeGetPropertyBlob(int fd, uint32_t blob_id) |
| 544 | { |
| 545 | struct drm_mode_get_blob blob; |
| 546 | drmModePropertyBlobPtr r; |
| 547 | |
| 548 | blob.length = 0; |
| 549 | blob.data = 0; |
| 550 | blob.blob_id = blob_id; |
| 551 | |
| 552 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) |
| 553 | return NULL; |
| 554 | |
| 555 | if (blob.length) |
| 556 | blob.data = VOID2U64(drmMalloc(blob.length)); |
| 557 | |
| 558 | if (drmIoctl(fd, DRM_IOCTL_MODE_GETPROPBLOB, &blob)) { |
| 559 | r = NULL; |
| 560 | goto err_allocs; |
| 561 | } |
| 562 | |
| 563 | if (!(r = drmMalloc(sizeof(*r)))) |
| 564 | return NULL; |
| 565 | |
| 566 | r->id = blob.blob_id; |
| 567 | r->length = blob.length; |
| 568 | r->data = drmAllocCpy(U642VOID(blob.data), 1, blob.length); |
| 569 | |
| 570 | err_allocs: |
| 571 | drmFree(U642VOID(blob.data)); |
| 572 | return r; |
| 573 | } |
| 574 | |
| 575 | void drmModeFreePropertyBlob(drmModePropertyBlobPtr ptr) |
| 576 | { |
| 577 | if (!ptr) |
| 578 | return; |
| 579 | |
| 580 | drmFree(ptr->data); |
| 581 | drmFree(ptr); |
| 582 | } |
| 583 | |
| 584 | int drmModeConnectorSetProperty(int fd, uint32_t connector_id, uint32_t property_id, |
| 585 | uint64_t value) |
| 586 | { |
| 587 | struct drm_mode_connector_set_property osp; |
| 588 | int ret; |
| 589 | |
| 590 | osp.connector_id = connector_id; |
| 591 | osp.prop_id = property_id; |
| 592 | osp.value = value; |
| 593 | |
| 594 | if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_SETPROPERTY, &osp))) |
| 595 | return ret; |
| 596 | |
| 597 | return 0; |
| 598 | } |
| 599 | |
| 600 | /* |
| 601 | * checks if a modesetting capable driver has attached to the pci id |
| 602 | * returns 0 if modesetting supported. |
| 603 | * -EINVAL or invalid bus id |
| 604 | * -ENOSYS if no modesetting support |
| 605 | */ |
| 606 | int drmCheckModesettingSupported(const char *busid) |
| 607 | { |
| 608 | #ifdef __linux__ |
| 609 | char pci_dev_dir[1024]; |
| 610 | int domain, bus, dev, func; |
| 611 | DIR *sysdir; |
| 612 | struct dirent *dent; |
| 613 | int found = 0, ret; |
| 614 | |
| 615 | ret = sscanf(busid, "pci:%04x:%02x:%02x.%d", &domain, &bus, &dev, &func); |
| 616 | if (ret != 4) |
| 617 | return -EINVAL; |
| 618 | |
| 619 | sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm", |
| 620 | domain, bus, dev, func); |
| 621 | |
| 622 | sysdir = opendir(pci_dev_dir); |
| 623 | if (sysdir) { |
| 624 | dent = readdir(sysdir); |
| 625 | while (dent) { |
| 626 | if (!strncmp(dent->d_name, "controlD", 8)) { |
| 627 | found = 1; |
| 628 | break; |
| 629 | } |
| 630 | |
| 631 | dent = readdir(sysdir); |
| 632 | } |
| 633 | closedir(sysdir); |
| 634 | if (found) |
| 635 | return 0; |
| 636 | } |
| 637 | |
| 638 | sprintf(pci_dev_dir, "/sys/bus/pci/devices/%04x:%02x:%02x.%d/", |
| 639 | domain, bus, dev, func); |
| 640 | |
| 641 | sysdir = opendir(pci_dev_dir); |
| 642 | if (!sysdir) |
| 643 | return -EINVAL; |
| 644 | |
| 645 | dent = readdir(sysdir); |
| 646 | while (dent) { |
| 647 | if (!strncmp(dent->d_name, "drm:controlD", 12)) { |
| 648 | found = 1; |
| 649 | break; |
| 650 | } |
| 651 | |
| 652 | dent = readdir(sysdir); |
| 653 | } |
| 654 | |
| 655 | closedir(sysdir); |
| 656 | if (found) |
| 657 | return 0; |
| 658 | #endif |
| 659 | return -ENOSYS; |
| 660 | |
| 661 | } |
| 662 | |
| 663 | int drmModeCrtcGetGamma(int fd, uint32_t crtc_id, uint32_t size, |
| 664 | uint16_t *red, uint16_t *green, uint16_t *blue) |
| 665 | { |
| 666 | int ret; |
| 667 | struct drm_mode_crtc_lut l; |
| 668 | |
| 669 | l.crtc_id = crtc_id; |
| 670 | l.gamma_size = size; |
| 671 | l.red = VOID2U64(red); |
| 672 | l.green = VOID2U64(green); |
| 673 | l.blue = VOID2U64(blue); |
| 674 | |
| 675 | if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_GETGAMMA, &l))) |
| 676 | return ret; |
| 677 | |
| 678 | return 0; |
| 679 | } |
| 680 | |
| 681 | int drmModeCrtcSetGamma(int fd, uint32_t crtc_id, uint32_t size, |
| 682 | uint16_t *red, uint16_t *green, uint16_t *blue) |
| 683 | { |
| 684 | int ret; |
| 685 | struct drm_mode_crtc_lut l; |
| 686 | |
| 687 | l.crtc_id = crtc_id; |
| 688 | l.gamma_size = size; |
| 689 | l.red = VOID2U64(red); |
| 690 | l.green = VOID2U64(green); |
| 691 | l.blue = VOID2U64(blue); |
| 692 | |
| 693 | if ((ret = drmIoctl(fd, DRM_IOCTL_MODE_SETGAMMA, &l))) |
| 694 | return ret; |
| 695 | |
| 696 | return 0; |
| 697 | } |