Gopikrishnaiah Anandan | e0e5e0c | 2016-05-25 11:05:33 -0700 | [diff] [blame] | 1 | /* Copyright (c) 2016-2017, The Linux Foundation. All rights reserved. |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 2 | * |
| 3 | * This program is free software; you can redistribute it and/or modify |
| 4 | * it under the terms of the GNU General Public License version 2 and |
| 5 | * only version 2 as published by the Free Software Foundation. |
| 6 | * |
| 7 | * This program is distributed in the hope that it will be useful, |
| 8 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 9 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 10 | * GNU General Public License for more details. |
| 11 | */ |
| 12 | |
| 13 | #include "msm_prop.h" |
| 14 | |
| 15 | void msm_property_init(struct msm_property_info *info, |
| 16 | struct drm_mode_object *base, |
| 17 | struct drm_device *dev, |
| 18 | struct drm_property **property_array, |
| 19 | struct msm_property_data *property_data, |
| 20 | uint32_t property_count, |
| 21 | uint32_t blob_count, |
| 22 | uint32_t state_size) |
| 23 | { |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 24 | int i; |
| 25 | |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 26 | /* prevent access if any of these are NULL */ |
| 27 | if (!base || !dev || !property_array || !property_data) { |
| 28 | property_count = 0; |
| 29 | blob_count = 0; |
| 30 | |
| 31 | DRM_ERROR("invalid arguments, forcing zero properties\n"); |
| 32 | return; |
| 33 | } |
| 34 | |
| 35 | /* can't have more blob properties than total properties */ |
| 36 | if (blob_count > property_count) { |
| 37 | blob_count = property_count; |
| 38 | |
| 39 | DBG("Capping number of blob properties to %d", blob_count); |
| 40 | } |
| 41 | |
| 42 | if (!info) { |
| 43 | DRM_ERROR("info pointer is NULL\n"); |
| 44 | } else { |
| 45 | info->base = base; |
| 46 | info->dev = dev; |
| 47 | info->property_array = property_array; |
| 48 | info->property_data = property_data; |
| 49 | info->property_count = property_count; |
| 50 | info->blob_count = blob_count; |
| 51 | info->install_request = 0; |
| 52 | info->install_count = 0; |
| 53 | info->recent_idx = 0; |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 54 | info->is_active = false; |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 55 | info->state_size = state_size; |
| 56 | info->state_cache_size = 0; |
| 57 | mutex_init(&info->property_lock); |
| 58 | |
| 59 | memset(property_data, |
| 60 | 0, |
| 61 | sizeof(struct msm_property_data) * |
| 62 | property_count); |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 63 | INIT_LIST_HEAD(&info->dirty_list); |
| 64 | |
| 65 | for (i = 0; i < property_count; ++i) |
| 66 | INIT_LIST_HEAD(&property_data[i].dirty_node); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 67 | } |
| 68 | } |
| 69 | |
| 70 | void msm_property_destroy(struct msm_property_info *info) |
| 71 | { |
| 72 | if (!info) |
| 73 | return; |
| 74 | |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 75 | /* reset dirty list */ |
| 76 | INIT_LIST_HEAD(&info->dirty_list); |
| 77 | |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 78 | /* free state cache */ |
| 79 | while (info->state_cache_size > 0) |
| 80 | kfree(info->state_cache[--(info->state_cache_size)]); |
| 81 | |
| 82 | mutex_destroy(&info->property_lock); |
| 83 | } |
| 84 | |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 85 | int msm_property_pop_dirty(struct msm_property_info *info) |
| 86 | { |
| 87 | struct list_head *item; |
| 88 | int rc = 0; |
| 89 | |
| 90 | if (!info) { |
| 91 | DRM_ERROR("invalid info\n"); |
| 92 | return -EINVAL; |
| 93 | } |
| 94 | |
| 95 | mutex_lock(&info->property_lock); |
| 96 | if (list_empty(&info->dirty_list)) { |
| 97 | rc = -EAGAIN; |
| 98 | } else { |
| 99 | item = info->dirty_list.next; |
| 100 | list_del_init(item); |
| 101 | rc = container_of(item, struct msm_property_data, dirty_node) |
| 102 | - info->property_data; |
| 103 | DRM_DEBUG_KMS("property %d dirty\n", rc); |
| 104 | } |
| 105 | mutex_unlock(&info->property_lock); |
| 106 | |
| 107 | return rc; |
| 108 | } |
| 109 | |
| 110 | /** |
| 111 | * _msm_property_set_dirty_no_lock - flag given property as being dirty |
| 112 | * This function doesn't mutex protect the |
| 113 | * dirty linked list. |
| 114 | * @info: Pointer to property info container struct |
| 115 | * @property_idx: Property index |
| 116 | */ |
| 117 | static void _msm_property_set_dirty_no_lock( |
| 118 | struct msm_property_info *info, |
| 119 | uint32_t property_idx) |
| 120 | { |
| 121 | if (!info || property_idx >= info->property_count) { |
| 122 | DRM_ERROR("invalid argument(s), info %pK, idx %u\n", |
| 123 | info, property_idx); |
| 124 | return; |
| 125 | } |
| 126 | |
| 127 | /* avoid re-inserting if already dirty */ |
| 128 | if (!list_empty(&info->property_data[property_idx].dirty_node)) { |
| 129 | DRM_DEBUG_KMS("property %u already dirty\n", property_idx); |
| 130 | return; |
| 131 | } |
| 132 | |
| 133 | list_add_tail(&info->property_data[property_idx].dirty_node, |
| 134 | &info->dirty_list); |
| 135 | } |
| 136 | |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 137 | /** |
| 138 | * _msm_property_install_integer - install standard drm range property |
| 139 | * @info: Pointer to property info container struct |
| 140 | * @name: Property name |
| 141 | * @flags: Other property type flags, e.g. DRM_MODE_PROP_IMMUTABLE |
| 142 | * @min: Min property value |
| 143 | * @max: Max property value |
| 144 | * @init: Default Property value |
| 145 | * @property_idx: Property index |
| 146 | * @force_dirty: Whether or not to filter 'dirty' status on unchanged values |
| 147 | */ |
| 148 | static void _msm_property_install_integer(struct msm_property_info *info, |
Lloyd Atkinson | 38ad8c9 | 2016-07-06 10:39:32 -0400 | [diff] [blame] | 149 | const char *name, int flags, uint64_t min, uint64_t max, |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 150 | uint64_t init, uint32_t property_idx, bool force_dirty) |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 151 | { |
| 152 | struct drm_property **prop; |
| 153 | |
| 154 | if (!info) |
| 155 | return; |
| 156 | |
| 157 | ++info->install_request; |
| 158 | |
| 159 | if (!name || (property_idx >= info->property_count)) { |
| 160 | DRM_ERROR("invalid argument(s), %s\n", name ? name : "null"); |
| 161 | } else { |
| 162 | prop = &info->property_array[property_idx]; |
| 163 | /* |
| 164 | * Properties need to be attached to each drm object that |
| 165 | * uses them, but only need to be created once |
| 166 | */ |
| 167 | if (*prop == 0) { |
| 168 | *prop = drm_property_create_range(info->dev, |
Lloyd Atkinson | 38ad8c9 | 2016-07-06 10:39:32 -0400 | [diff] [blame] | 169 | flags, name, min, max); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 170 | if (*prop == 0) |
| 171 | DRM_ERROR("create %s property failed\n", name); |
| 172 | } |
| 173 | |
| 174 | /* save init value for later */ |
| 175 | info->property_data[property_idx].default_value = init; |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 176 | info->property_data[property_idx].force_dirty = force_dirty; |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 177 | |
| 178 | /* always attach property, if created */ |
| 179 | if (*prop) { |
| 180 | drm_object_attach_property(info->base, *prop, init); |
| 181 | ++info->install_count; |
| 182 | } |
| 183 | } |
| 184 | } |
| 185 | |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 186 | void msm_property_install_range(struct msm_property_info *info, |
| 187 | const char *name, int flags, uint64_t min, uint64_t max, |
| 188 | uint64_t init, uint32_t property_idx) |
| 189 | { |
| 190 | _msm_property_install_integer(info, name, flags, |
| 191 | min, max, init, property_idx, false); |
| 192 | } |
| 193 | |
| 194 | void msm_property_install_volatile_range(struct msm_property_info *info, |
| 195 | const char *name, int flags, uint64_t min, uint64_t max, |
| 196 | uint64_t init, uint32_t property_idx) |
| 197 | { |
| 198 | _msm_property_install_integer(info, name, flags, |
| 199 | min, max, init, property_idx, true); |
| 200 | } |
| 201 | |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 202 | void msm_property_install_rotation(struct msm_property_info *info, |
| 203 | unsigned int supported_rotations, uint32_t property_idx) |
| 204 | { |
| 205 | struct drm_property **prop; |
| 206 | |
| 207 | if (!info) |
| 208 | return; |
| 209 | |
| 210 | ++info->install_request; |
| 211 | |
| 212 | if (property_idx >= info->property_count) { |
| 213 | DRM_ERROR("invalid property index %d\n", property_idx); |
| 214 | } else { |
| 215 | prop = &info->property_array[property_idx]; |
| 216 | /* |
| 217 | * Properties need to be attached to each drm object that |
| 218 | * uses them, but only need to be created once |
| 219 | */ |
| 220 | if (*prop == 0) { |
| 221 | *prop = drm_mode_create_rotation_property(info->dev, |
| 222 | supported_rotations); |
| 223 | if (*prop == 0) |
| 224 | DRM_ERROR("create rotation property failed\n"); |
| 225 | } |
| 226 | |
| 227 | /* save init value for later */ |
| 228 | info->property_data[property_idx].default_value = 0; |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 229 | info->property_data[property_idx].force_dirty = false; |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 230 | |
| 231 | /* always attach property, if created */ |
| 232 | if (*prop) { |
| 233 | drm_object_attach_property(info->base, *prop, 0); |
| 234 | ++info->install_count; |
| 235 | } |
| 236 | } |
| 237 | } |
| 238 | |
| 239 | void msm_property_install_enum(struct msm_property_info *info, |
Lloyd Atkinson | 38ad8c9 | 2016-07-06 10:39:32 -0400 | [diff] [blame] | 240 | const char *name, int flags, int is_bitmask, |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 241 | const struct drm_prop_enum_list *values, int num_values, |
| 242 | uint32_t property_idx) |
| 243 | { |
| 244 | struct drm_property **prop; |
| 245 | |
| 246 | if (!info) |
| 247 | return; |
| 248 | |
| 249 | ++info->install_request; |
| 250 | |
| 251 | if (!name || !values || !num_values || |
| 252 | (property_idx >= info->property_count)) { |
| 253 | DRM_ERROR("invalid argument(s), %s\n", name ? name : "null"); |
| 254 | } else { |
| 255 | prop = &info->property_array[property_idx]; |
| 256 | /* |
| 257 | * Properties need to be attached to each drm object that |
| 258 | * uses them, but only need to be created once |
| 259 | */ |
| 260 | if (*prop == 0) { |
| 261 | /* 'bitmask' is a special type of 'enum' */ |
| 262 | if (is_bitmask) |
| 263 | *prop = drm_property_create_bitmask(info->dev, |
Lloyd Atkinson | 38ad8c9 | 2016-07-06 10:39:32 -0400 | [diff] [blame] | 264 | DRM_MODE_PROP_BITMASK | flags, |
| 265 | name, values, num_values, -1); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 266 | else |
| 267 | *prop = drm_property_create_enum(info->dev, |
Lloyd Atkinson | 38ad8c9 | 2016-07-06 10:39:32 -0400 | [diff] [blame] | 268 | DRM_MODE_PROP_ENUM | flags, |
| 269 | name, values, num_values); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 270 | if (*prop == 0) |
| 271 | DRM_ERROR("create %s property failed\n", name); |
| 272 | } |
| 273 | |
| 274 | /* save init value for later */ |
| 275 | info->property_data[property_idx].default_value = 0; |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 276 | info->property_data[property_idx].force_dirty = false; |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 277 | |
| 278 | /* always attach property, if created */ |
| 279 | if (*prop) { |
| 280 | drm_object_attach_property(info->base, *prop, 0); |
| 281 | ++info->install_count; |
| 282 | } |
| 283 | } |
| 284 | } |
| 285 | |
| 286 | void msm_property_install_blob(struct msm_property_info *info, |
| 287 | const char *name, int flags, uint32_t property_idx) |
| 288 | { |
| 289 | struct drm_property **prop; |
| 290 | |
| 291 | if (!info) |
| 292 | return; |
| 293 | |
| 294 | ++info->install_request; |
| 295 | |
| 296 | if (!name || (property_idx >= info->blob_count)) { |
| 297 | DRM_ERROR("invalid argument(s), %s\n", name ? name : "null"); |
| 298 | } else { |
| 299 | prop = &info->property_array[property_idx]; |
| 300 | /* |
| 301 | * Properties need to be attached to each drm object that |
| 302 | * uses them, but only need to be created once |
| 303 | */ |
| 304 | if (*prop == 0) { |
| 305 | /* use 'create' for blob property place holder */ |
| 306 | *prop = drm_property_create(info->dev, |
| 307 | DRM_MODE_PROP_BLOB | flags, name, 0); |
| 308 | if (*prop == 0) |
| 309 | DRM_ERROR("create %s property failed\n", name); |
| 310 | } |
| 311 | |
| 312 | /* save init value for later */ |
| 313 | info->property_data[property_idx].default_value = 0; |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 314 | info->property_data[property_idx].force_dirty = true; |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 315 | |
| 316 | /* always attach property, if created */ |
| 317 | if (*prop) { |
| 318 | drm_object_attach_property(info->base, *prop, -1); |
| 319 | ++info->install_count; |
| 320 | } |
| 321 | } |
| 322 | } |
| 323 | |
| 324 | int msm_property_install_get_status(struct msm_property_info *info) |
| 325 | { |
| 326 | int rc = -ENOMEM; |
| 327 | |
| 328 | if (info && (info->install_request == info->install_count)) |
| 329 | rc = 0; |
| 330 | |
| 331 | return rc; |
| 332 | } |
| 333 | |
| 334 | int msm_property_index(struct msm_property_info *info, |
| 335 | struct drm_property *property) |
| 336 | { |
| 337 | uint32_t count; |
| 338 | int32_t idx; |
| 339 | int rc = -EINVAL; |
| 340 | |
| 341 | if (!info || !property) { |
| 342 | DRM_ERROR("invalid argument(s)\n"); |
| 343 | } else { |
| 344 | /* |
| 345 | * Linear search, but start from last found index. This will |
| 346 | * help if any single property is accessed multiple times in a |
| 347 | * row. Ideally, we could keep a list of properties sorted in |
| 348 | * the order of most recent access, but that may be overkill |
| 349 | * for now. |
| 350 | */ |
| 351 | mutex_lock(&info->property_lock); |
| 352 | idx = info->recent_idx; |
| 353 | count = info->property_count; |
| 354 | while (count) { |
| 355 | --count; |
| 356 | |
| 357 | /* stop searching on match */ |
| 358 | if (info->property_array[idx] == property) { |
| 359 | info->recent_idx = idx; |
| 360 | rc = idx; |
| 361 | break; |
| 362 | } |
| 363 | |
| 364 | /* move to next valid index */ |
| 365 | if (--idx < 0) |
| 366 | idx = info->property_count - 1; |
| 367 | } |
| 368 | mutex_unlock(&info->property_lock); |
| 369 | } |
| 370 | |
| 371 | return rc; |
| 372 | } |
| 373 | |
| 374 | int msm_property_atomic_set(struct msm_property_info *info, |
| 375 | uint64_t *property_values, |
| 376 | struct drm_property_blob **property_blobs, |
| 377 | struct drm_property *property, uint64_t val) |
| 378 | { |
| 379 | struct drm_property_blob *blob; |
| 380 | int property_idx, rc = -EINVAL; |
| 381 | |
| 382 | property_idx = msm_property_index(info, property); |
| 383 | if (!info || (property_idx == -EINVAL) || !property_values) { |
Gopikrishnaiah Anandan | e0e5e0c | 2016-05-25 11:05:33 -0700 | [diff] [blame] | 384 | DRM_DEBUG("Invalid argument(s)\n"); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 385 | } else { |
| 386 | /* extra handling for incoming properties */ |
| 387 | mutex_lock(&info->property_lock); |
| 388 | if ((property->flags & DRM_MODE_PROP_BLOB) && |
| 389 | (property_idx < info->blob_count) && |
| 390 | property_blobs) { |
| 391 | /* DRM lookup also takes a reference */ |
| 392 | blob = drm_property_lookup_blob(info->dev, |
| 393 | (uint32_t)val); |
| 394 | if (!blob) { |
| 395 | DRM_ERROR("blob not found\n"); |
| 396 | val = 0; |
| 397 | } else { |
| 398 | DBG("Blob %u saved", blob->base.id); |
| 399 | val = blob->base.id; |
| 400 | |
| 401 | /* save blob - need to clear previous ref */ |
| 402 | if (property_blobs[property_idx]) |
| 403 | drm_property_unreference_blob( |
| 404 | property_blobs[property_idx]); |
| 405 | property_blobs[property_idx] = blob; |
| 406 | } |
| 407 | } |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 408 | |
| 409 | /* update value and flag as dirty */ |
Clarence Ip | 282dad6 | 2016-09-27 17:07:35 -0400 | [diff] [blame] | 410 | if (property_values[property_idx] != val || |
Clarence Ip | 5fc00c5 | 2016-09-23 15:03:34 -0400 | [diff] [blame] | 411 | info->property_data[property_idx].force_dirty) { |
Clarence Ip | 282dad6 | 2016-09-27 17:07:35 -0400 | [diff] [blame] | 412 | property_values[property_idx] = val; |
| 413 | _msm_property_set_dirty_no_lock(info, property_idx); |
Clarence Ip | 913624e | 2016-06-23 14:56:32 -0400 | [diff] [blame] | 414 | |
Clarence Ip | 282dad6 | 2016-09-27 17:07:35 -0400 | [diff] [blame] | 415 | DBG("%s - %lld", property->name, val); |
| 416 | } |
| 417 | mutex_unlock(&info->property_lock); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 418 | rc = 0; |
| 419 | } |
| 420 | |
| 421 | return rc; |
| 422 | } |
| 423 | |
| 424 | int msm_property_atomic_get(struct msm_property_info *info, |
| 425 | uint64_t *property_values, |
| 426 | struct drm_property_blob **property_blobs, |
| 427 | struct drm_property *property, uint64_t *val) |
| 428 | { |
| 429 | int property_idx, rc = -EINVAL; |
| 430 | |
| 431 | property_idx = msm_property_index(info, property); |
| 432 | if (!info || (property_idx == -EINVAL) || !property_values || !val) { |
Gopikrishnaiah Anandan | e0e5e0c | 2016-05-25 11:05:33 -0700 | [diff] [blame] | 433 | DRM_DEBUG("Invalid argument(s)\n"); |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 434 | } else { |
| 435 | mutex_lock(&info->property_lock); |
| 436 | *val = property_values[property_idx]; |
| 437 | mutex_unlock(&info->property_lock); |
| 438 | rc = 0; |
| 439 | } |
| 440 | |
| 441 | return rc; |
| 442 | } |
| 443 | |
| 444 | void *msm_property_alloc_state(struct msm_property_info *info) |
| 445 | { |
| 446 | void *state = NULL; |
| 447 | |
| 448 | if (!info) { |
| 449 | DRM_ERROR("invalid property info\n"); |
| 450 | return NULL; |
| 451 | } |
| 452 | |
| 453 | mutex_lock(&info->property_lock); |
| 454 | if (info->state_cache_size) |
| 455 | state = info->state_cache[--(info->state_cache_size)]; |
| 456 | mutex_unlock(&info->property_lock); |
| 457 | |
| 458 | if (!state && info->state_size) |
| 459 | state = kmalloc(info->state_size, GFP_KERNEL); |
| 460 | |
| 461 | if (!state) |
| 462 | DRM_ERROR("failed to allocate state\n"); |
| 463 | |
| 464 | return state; |
| 465 | } |
| 466 | |
| 467 | /** |
| 468 | * _msm_property_free_state - helper function for freeing local state objects |
| 469 | * @info: Pointer to property info container struct |
| 470 | * @st: Pointer to state object |
| 471 | */ |
| 472 | static void _msm_property_free_state(struct msm_property_info *info, void *st) |
| 473 | { |
| 474 | if (!info || !st) |
| 475 | return; |
| 476 | |
| 477 | mutex_lock(&info->property_lock); |
| 478 | if (info->state_cache_size < MSM_PROP_STATE_CACHE_SIZE) |
| 479 | info->state_cache[(info->state_cache_size)++] = st; |
| 480 | else |
| 481 | kfree(st); |
| 482 | mutex_unlock(&info->property_lock); |
| 483 | } |
| 484 | |
| 485 | void msm_property_reset_state(struct msm_property_info *info, void *state, |
| 486 | uint64_t *property_values, |
| 487 | struct drm_property_blob **property_blobs) |
| 488 | { |
| 489 | uint32_t i; |
| 490 | |
| 491 | if (!info) { |
| 492 | DRM_ERROR("invalid property info\n"); |
| 493 | return; |
| 494 | } |
| 495 | |
| 496 | if (state) |
| 497 | memset(state, 0, info->state_size); |
| 498 | |
| 499 | /* |
| 500 | * Assign default property values. This helper is mostly used |
| 501 | * to initialize newly created state objects. |
| 502 | */ |
| 503 | if (property_values) |
| 504 | for (i = 0; i < info->property_count; ++i) |
| 505 | property_values[i] = |
| 506 | info->property_data[i].default_value; |
| 507 | |
| 508 | if (property_blobs) |
| 509 | for (i = 0; i < info->blob_count; ++i) |
| 510 | property_blobs[i] = 0; |
| 511 | } |
| 512 | |
| 513 | void msm_property_duplicate_state(struct msm_property_info *info, |
| 514 | void *old_state, void *state, |
| 515 | uint64_t *property_values, |
| 516 | struct drm_property_blob **property_blobs) |
| 517 | { |
| 518 | uint32_t i; |
| 519 | |
| 520 | if (!info || !old_state || !state) { |
| 521 | DRM_ERROR("invalid argument(s)\n"); |
| 522 | return; |
| 523 | } |
| 524 | |
| 525 | memcpy(state, old_state, info->state_size); |
| 526 | |
| 527 | if (property_blobs) { |
| 528 | /* add ref count for blobs */ |
| 529 | for (i = 0; i < info->blob_count; ++i) |
| 530 | if (property_blobs[i]) |
| 531 | drm_property_reference_blob(property_blobs[i]); |
| 532 | } |
| 533 | } |
| 534 | |
| 535 | void msm_property_destroy_state(struct msm_property_info *info, void *state, |
| 536 | uint64_t *property_values, |
| 537 | struct drm_property_blob **property_blobs) |
| 538 | { |
| 539 | uint32_t i; |
| 540 | |
| 541 | if (!info || !state) { |
| 542 | DRM_ERROR("invalid argument(s)\n"); |
| 543 | return; |
| 544 | } |
| 545 | if (property_blobs) { |
| 546 | /* remove ref count for blobs */ |
| 547 | for (i = 0; i < info->blob_count; ++i) |
| 548 | if (property_blobs[i]) |
| 549 | drm_property_unreference_blob( |
| 550 | property_blobs[i]); |
| 551 | } |
| 552 | |
| 553 | _msm_property_free_state(info, state); |
| 554 | } |
| 555 | |
| 556 | void *msm_property_get_blob(struct msm_property_info *info, |
| 557 | struct drm_property_blob **property_blobs, |
| 558 | size_t *byte_len, |
| 559 | uint32_t property_idx) |
| 560 | { |
| 561 | struct drm_property_blob *blob; |
| 562 | size_t len = 0; |
| 563 | void *rc = 0; |
| 564 | |
Clarence Ip | 075c257 | 2016-07-18 19:06:10 -0400 | [diff] [blame] | 565 | if (!info || !property_blobs || (property_idx >= info->blob_count)) { |
Clarence Ip | 7aa390f | 2016-05-26 21:06:54 -0400 | [diff] [blame] | 566 | DRM_ERROR("invalid argument(s)\n"); |
| 567 | } else { |
| 568 | blob = property_blobs[property_idx]; |
| 569 | if (blob) { |
| 570 | len = blob->length; |
| 571 | rc = &blob->data; |
| 572 | } |
| 573 | } |
| 574 | |
| 575 | if (byte_len) |
| 576 | *byte_len = len; |
| 577 | |
| 578 | return rc; |
| 579 | } |
| 580 | |
| 581 | int msm_property_set_blob(struct msm_property_info *info, |
| 582 | struct drm_property_blob **blob_reference, |
| 583 | void *blob_data, |
| 584 | size_t byte_len, |
| 585 | uint32_t property_idx) |
| 586 | { |
| 587 | struct drm_property_blob *blob = NULL; |
| 588 | int rc = -EINVAL; |
| 589 | |
| 590 | if (!info || !blob_reference || (property_idx >= info->blob_count)) { |
| 591 | DRM_ERROR("invalid argument(s)\n"); |
| 592 | } else { |
| 593 | /* create blob */ |
| 594 | if (blob_data && byte_len) { |
| 595 | blob = drm_property_create_blob(info->dev, |
| 596 | byte_len, |
| 597 | blob_data); |
| 598 | if (IS_ERR_OR_NULL(blob)) { |
| 599 | rc = PTR_ERR(blob); |
| 600 | DRM_ERROR("failed to create blob, %d\n", rc); |
| 601 | goto exit; |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | /* update drm object */ |
| 606 | rc = drm_object_property_set_value(info->base, |
| 607 | info->property_array[property_idx], |
| 608 | blob ? blob->base.id : 0); |
| 609 | if (rc) { |
| 610 | DRM_ERROR("failed to set blob to property\n"); |
| 611 | if (blob) |
| 612 | drm_property_unreference_blob(blob); |
| 613 | goto exit; |
| 614 | } |
| 615 | |
| 616 | /* update local reference */ |
| 617 | if (*blob_reference) |
| 618 | drm_property_unreference_blob(*blob_reference); |
| 619 | *blob_reference = blob; |
| 620 | } |
| 621 | |
| 622 | exit: |
| 623 | return rc; |
| 624 | } |
| 625 | |
Lloyd Atkinson | b619197 | 2016-08-10 18:31:46 -0400 | [diff] [blame] | 626 | int msm_property_set_property(struct msm_property_info *info, |
Lloyd Atkinson | 13cee81 | 2016-08-16 16:10:31 -0400 | [diff] [blame] | 627 | uint64_t *property_values, |
Lloyd Atkinson | b619197 | 2016-08-10 18:31:46 -0400 | [diff] [blame] | 628 | uint32_t property_idx, |
| 629 | uint64_t val) |
| 630 | { |
| 631 | int rc = -EINVAL; |
| 632 | |
| 633 | if (!info || (property_idx >= info->property_count) || |
Lloyd Atkinson | 13cee81 | 2016-08-16 16:10:31 -0400 | [diff] [blame] | 634 | property_idx < info->blob_count || !property_values) { |
Lloyd Atkinson | b619197 | 2016-08-10 18:31:46 -0400 | [diff] [blame] | 635 | DRM_ERROR("invalid argument(s)\n"); |
| 636 | } else { |
Lloyd Atkinson | 13cee81 | 2016-08-16 16:10:31 -0400 | [diff] [blame] | 637 | struct drm_property *drm_prop; |
| 638 | |
| 639 | mutex_lock(&info->property_lock); |
| 640 | |
| 641 | /* update cached value */ |
| 642 | if (property_values) |
| 643 | property_values[property_idx] = val; |
| 644 | |
| 645 | /* update the new default value for immutables */ |
| 646 | drm_prop = info->property_array[property_idx]; |
| 647 | if (drm_prop->flags & DRM_MODE_PROP_IMMUTABLE) |
| 648 | info->property_data[property_idx].default_value = val; |
| 649 | |
| 650 | mutex_unlock(&info->property_lock); |
| 651 | |
Lloyd Atkinson | b619197 | 2016-08-10 18:31:46 -0400 | [diff] [blame] | 652 | /* update drm object */ |
Lloyd Atkinson | 13cee81 | 2016-08-16 16:10:31 -0400 | [diff] [blame] | 653 | rc = drm_object_property_set_value(info->base, drm_prop, val); |
Lloyd Atkinson | b619197 | 2016-08-10 18:31:46 -0400 | [diff] [blame] | 654 | if (rc) |
| 655 | DRM_ERROR("failed set property value, idx %d rc %d\n", |
| 656 | property_idx, rc); |
Lloyd Atkinson | 13cee81 | 2016-08-16 16:10:31 -0400 | [diff] [blame] | 657 | |
Lloyd Atkinson | b619197 | 2016-08-10 18:31:46 -0400 | [diff] [blame] | 658 | } |
| 659 | |
| 660 | return rc; |
| 661 | } |
| 662 | |