Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2016 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "VrHALImpl" |
| 18 | |
| 19 | #include <cutils/log.h> |
| 20 | |
| 21 | #include <dlfcn.h> |
| 22 | #include <errno.h> |
| 23 | #include <fcntl.h> |
| 24 | #include <stdlib.h> |
| 25 | #include <string.h> |
| 26 | #include <sys/stat.h> |
| 27 | #include <sys/types.h> |
| 28 | |
| 29 | #include <hardware/vr.h> |
| 30 | #include <hardware/hardware.h> |
| 31 | |
Roopesh Rajashekharaiah Nataraja | 5d88d4e | 2018-03-20 18:08:06 -0700 | [diff] [blame] | 32 | #include <thermal_client.h> |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 33 | #include "vr_int.h" |
| 34 | |
| 35 | |
| 36 | static void *dlhandle; |
| 37 | static int (*p_thermal_client_config_query)(char *, struct config_instance **); |
| 38 | static int (*p_thermal_client_config_set)(struct config_instance *, unsigned int); |
| 39 | static void (*p_thermal_client_config_cleanup)(struct config_instance *, unsigned int); |
| 40 | |
| 41 | static int max_string_size = 36; |
| 42 | static int error_state = 0; //global error state - don't do anything if set! |
| 43 | |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 44 | #define DEBUG 0 |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 45 | |
| 46 | static thermal_cfg_info_t non_vr_thermal_cfgs; |
| 47 | static thermal_cfg_info_t vr_thermal_cfgs; |
| 48 | |
| 49 | int __attribute__ ((weak)) load_thermal_cfg_info(thermal_cfg_info_t *non_vr, |
| 50 | thermal_cfg_info_t *vr) { |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 51 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 52 | non_vr->num_cfgs = 0; |
| 53 | vr->num_cfgs = 0; |
| 54 | |
| 55 | return 0; |
| 56 | } |
| 57 | |
| 58 | /** |
| 59 | * Debug function for printing out a log instance |
| 60 | */ |
| 61 | static void log_config_instance(struct config_instance *instance ){ |
| 62 | ALOGI("logging config_instance 0x%p", instance); |
| 63 | ALOGI("config_instance: cfg_desc = %s", instance->cfg_desc); |
| 64 | ALOGI("config_instance: algo_type = %s", instance->algo_type); |
| 65 | ALOGI("config_instance: fields_mask = 0x%x", instance->fields_mask); |
| 66 | ALOGI("config_instance: num_fields = %u", instance->num_fields); |
| 67 | for (uint32_t i = 0; i < instance->num_fields; i++) { |
| 68 | ALOGI("config_instance: field_data[%d]", i); |
| 69 | ALOGI("\tfield_name = %s", instance->fields[i].field_name); |
| 70 | ALOGI("\tdata_type = %u", instance->fields[i].data_type); |
| 71 | ALOGI("\tnum_data = %u", instance->fields[i].num_data); |
| 72 | switch (instance->fields[i].data_type){ |
| 73 | case FIELD_INT: ALOGI("\tdata = %d", *(int*)(instance->fields[i].data)); |
| 74 | break; |
| 75 | case FIELD_STR: ALOGI("\tdata = %s", (char*)(instance->fields[i].data)); |
| 76 | break; |
| 77 | default: ALOGI("\tdata = 0x%p", instance->fields[i].data); |
| 78 | break; |
| 79 | } |
| 80 | } |
| 81 | } |
| 82 | |
| 83 | /** |
| 84 | * Debug function for printing out all instances of "ss" and "monitor" algos |
| 85 | */ |
| 86 | static void query_thermal_config(){ |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 87 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 88 | struct config_instance *instances; |
| 89 | |
| 90 | int num_configs = (*p_thermal_client_config_query)("ss", &instances); |
| 91 | if (num_configs <= 0) { |
| 92 | return; |
| 93 | } |
| 94 | for (int i = 0; i < num_configs; i++) { |
| 95 | log_config_instance(&(instances[i])); |
| 96 | } |
| 97 | if (num_configs > 0) { |
| 98 | (*p_thermal_client_config_cleanup)(instances, num_configs); |
| 99 | } |
| 100 | |
| 101 | num_configs = (*p_thermal_client_config_query)("monitor", &instances); |
| 102 | if (num_configs <= 0) { |
| 103 | return; |
| 104 | } |
| 105 | for (int i = 0; i < num_configs; i++) { |
| 106 | log_config_instance(&(instances[i])); |
| 107 | } |
| 108 | if (num_configs > 0) { |
| 109 | (*p_thermal_client_config_cleanup)(instances, num_configs); |
| 110 | } |
| 111 | } |
| 112 | |
| 113 | /** |
| 114 | * Load the thermal client library |
| 115 | * returns 0 on success |
| 116 | */ |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 117 | static int load_thermal_client(void){ |
| 118 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 119 | char *thermal_client_so = "vendor/lib64/libthermalclient.so"; |
| 120 | |
| 121 | dlhandle = dlopen(thermal_client_so, RTLD_NOW | RTLD_LOCAL); |
| 122 | if (dlhandle) { |
| 123 | dlerror(); |
| 124 | p_thermal_client_config_query = (int (*) (char *, struct config_instance **)) |
| 125 | dlsym(dlhandle, "thermal_client_config_query"); |
| 126 | if (dlerror()) { |
| 127 | ALOGE("Unable to load thermal_client_config_query"); |
| 128 | goto error_handle; |
| 129 | } |
| 130 | |
| 131 | p_thermal_client_config_set = (int (*) (struct config_instance *, unsigned int)) |
| 132 | dlsym(dlhandle, "thermal_client_config_set"); |
| 133 | if (dlerror()) { |
| 134 | ALOGE("Unable to load thermal_client_config_set"); |
| 135 | goto error_handle; |
| 136 | } |
| 137 | |
| 138 | p_thermal_client_config_cleanup = (void (*) (struct config_instance *, unsigned int)) |
| 139 | dlsym(dlhandle, "thermal_client_config_cleanup"); |
| 140 | if (dlerror()) { |
| 141 | ALOGE("Unable to load thermal_client_config_cleanup"); |
| 142 | goto error_handle; |
| 143 | } |
| 144 | } else { |
| 145 | ALOGE("unable to open %s", thermal_client_so); |
| 146 | return -1; |
| 147 | } |
| 148 | return 0; |
| 149 | |
| 150 | error_handle: |
| 151 | ALOGE("Error opening functions from %s", thermal_client_so); |
| 152 | p_thermal_client_config_query = NULL; |
| 153 | p_thermal_client_config_set = NULL; |
| 154 | p_thermal_client_config_cleanup = NULL; |
| 155 | dlclose(dlhandle); |
| 156 | dlhandle = NULL; |
| 157 | return -1; |
| 158 | } |
| 159 | |
| 160 | /** |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 161 | * Free the config_instance as allocated in allocate_config_instance |
| 162 | */ |
| 163 | static void free_config_instance(struct config_instance *config){ |
| 164 | |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 165 | if (config) { |
| 166 | if (config->fields) { |
| 167 | free(config->fields[0].data); |
| 168 | free(config->fields[0].field_name); |
| 169 | free(config->fields); |
| 170 | } |
| 171 | free(config->algo_type); |
| 172 | free(config->cfg_desc); |
| 173 | free(config); |
| 174 | } |
| 175 | } |
| 176 | |
| 177 | /** |
| 178 | * Allocate a new struct config_instance for modifying the disable field |
| 179 | */ |
| 180 | static struct config_instance *allocate_config_instance(){ |
| 181 | ALOGD("Entering %s",__func__); |
| 182 | struct config_instance *config = (struct config_instance *)malloc(sizeof(struct config_instance)); |
| 183 | if (!config) { |
| 184 | ALOGE("Unable to allocate memory for config"); |
| 185 | return NULL; |
| 186 | } |
| 187 | memset(config, 0, sizeof(*config)); |
| 188 | |
| 189 | config->cfg_desc = (char *)malloc(sizeof(char) * max_string_size); |
| 190 | if (!config->cfg_desc) { |
| 191 | free_config_instance(config); |
| 192 | ALOGE("Unable to allocate memory for config->cfg_desc"); |
| 193 | return NULL; |
| 194 | } |
| 195 | memset(config->cfg_desc, 0, sizeof(char)*max_string_size); |
| 196 | |
| 197 | config->algo_type = (char *)malloc(sizeof(char) * max_string_size); |
| 198 | if (!config->algo_type) { |
| 199 | free_config_instance(config); |
| 200 | ALOGE("Unable to allocate memory for config->algo_type"); |
| 201 | return NULL; |
| 202 | } |
| 203 | memset(config->algo_type, 0, sizeof(char) * max_string_size); |
| 204 | |
| 205 | config->fields = (struct field_data *)malloc(sizeof(struct field_data)); |
| 206 | if (!config->fields) { |
| 207 | free_config_instance(config); |
| 208 | ALOGE("Unable to allocate memory for config->fields"); |
| 209 | return NULL; |
| 210 | } |
| 211 | memset(config->fields, 0, sizeof(*config->fields)); |
| 212 | |
| 213 | config->fields[0].field_name = (char*)malloc(sizeof(char) * max_string_size); |
| 214 | if (!config->fields[0].field_name) { |
| 215 | free_config_instance(config); |
| 216 | ALOGE("Unable to allocate memory for config->fields[0].field_name"); |
| 217 | return NULL; |
| 218 | } |
| 219 | memset(config->fields[0].field_name, 0, sizeof(char) * max_string_size); |
| 220 | |
| 221 | config->fields[0].data = (void*)malloc(sizeof(int)); |
| 222 | if (!config->fields[0].data) { |
| 223 | free_config_instance(config); |
| 224 | ALOGE("Unable to allocate memory for config->fields[0].data"); |
| 225 | return NULL; |
| 226 | } |
| 227 | |
| 228 | return config; |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 229 | } |
| 230 | |
| 231 | /** |
| 232 | * disable a thermal config |
| 233 | * returns 1 on success, anything else is a failure |
| 234 | */ |
| 235 | static int disable_config(char *config_name, char *algo_type){ |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 236 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 237 | int result = 0; |
| 238 | if (error_state) { |
| 239 | return 0; |
| 240 | } |
| 241 | struct config_instance *config = allocate_config_instance(); |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 242 | if (!config) { |
| 243 | return 0; |
| 244 | } |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 245 | strlcpy(config->cfg_desc, config_name, max_string_size); |
| 246 | strlcpy(config->algo_type, algo_type, max_string_size); |
| 247 | strlcpy(config->fields[0].field_name, "disable", max_string_size); |
| 248 | |
| 249 | config->fields_mask |= DISABLE_FIELD; |
| 250 | config->num_fields = 1; |
| 251 | config->fields[0].data_type = FIELD_INT; |
| 252 | config->fields[0].num_data = 1; |
| 253 | *(int*)(config->fields[0].data) = 1; //DISABLE |
| 254 | |
| 255 | |
| 256 | result = (*p_thermal_client_config_set)(config, 1); |
| 257 | if (DEBUG) { |
| 258 | ALOGE("disable profile: name = %s, algo_type = %s, success = %d", config_name, algo_type, result); |
| 259 | } |
| 260 | free_config_instance(config); |
| 261 | |
| 262 | return result; |
| 263 | } |
| 264 | |
| 265 | /** |
| 266 | * enable a thermal config |
| 267 | * returns 1 on success, anything else is failure |
| 268 | */ |
| 269 | static int enable_config(char *config_name, char *algo_type){ |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 270 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 271 | int result = 0; |
| 272 | if (error_state) { |
| 273 | return 0; |
| 274 | } |
| 275 | struct config_instance *config = allocate_config_instance(); |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 276 | if (!config) { |
| 277 | return 0; |
| 278 | } |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 279 | strlcpy(config->cfg_desc, config_name, max_string_size); |
| 280 | strlcpy(config->algo_type, algo_type, max_string_size); |
| 281 | strlcpy(config->fields[0].field_name, "disable", max_string_size); |
| 282 | |
| 283 | config->fields_mask |= DISABLE_FIELD; |
| 284 | config->num_fields = 1; |
| 285 | config->fields[0].data_type = FIELD_INT; |
| 286 | config->fields[0].num_data = 1; |
| 287 | *(int*)(config->fields[0].data) = 0; //ENABLE |
| 288 | |
| 289 | result = (*p_thermal_client_config_set)(config, 1); |
| 290 | if (DEBUG) { |
| 291 | ALOGE("enable profile: name = %s, algo_type = %s, success = %d", |
| 292 | config_name, algo_type, result); |
| 293 | } |
| 294 | |
| 295 | free_config_instance(config); |
| 296 | |
| 297 | return result; |
| 298 | } |
| 299 | |
| 300 | /** |
| 301 | * Call this if there is a compoenent-fatal error |
| 302 | * Attempts to clean up any outstanding thermal config state |
| 303 | */ |
| 304 | static void error_cleanup(){ |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 305 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 306 | //disable VR configs, best-effort so ignore return values |
| 307 | for (unsigned int i = 0; i < vr_thermal_cfgs.num_cfgs; i++) { |
| 308 | disable_config(vr_thermal_cfgs.cfgs[i].config_name, vr_thermal_cfgs.cfgs[i].algo_name); |
| 309 | } |
| 310 | |
| 311 | // enable non-VR profile, best-effort so ignore return values |
| 312 | for (unsigned int i = 0; i < non_vr_thermal_cfgs.num_cfgs; i++) { |
| 313 | enable_config(non_vr_thermal_cfgs.cfgs[i].config_name, non_vr_thermal_cfgs.cfgs[i].algo_name); |
| 314 | } |
| 315 | |
| 316 | // set global error flag |
| 317 | error_state = 1; |
| 318 | } |
| 319 | |
| 320 | /* |
| 321 | * Set global display/GPU/scheduler configuration to used for VR apps. |
| 322 | */ |
| 323 | static void set_vr_thermal_configuration() { |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 324 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 325 | int result = 1; |
| 326 | if (error_state) { |
| 327 | return; |
| 328 | } |
| 329 | //disable non-VR configs |
| 330 | for (unsigned int i = 0; i < non_vr_thermal_cfgs.num_cfgs; i++) { |
| 331 | result = disable_config(non_vr_thermal_cfgs.cfgs[i].config_name, non_vr_thermal_cfgs.cfgs[i].algo_name); |
| 332 | if (result != 1) |
| 333 | { |
| 334 | goto error; |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | //enable VR configs |
| 339 | for (unsigned int i = 0; i < vr_thermal_cfgs.num_cfgs; i++) { |
| 340 | result = enable_config(vr_thermal_cfgs.cfgs[i].config_name, vr_thermal_cfgs.cfgs[i].algo_name); |
| 341 | if (result != 1) |
| 342 | { |
| 343 | goto error; |
| 344 | } |
| 345 | } |
| 346 | |
| 347 | if (DEBUG) { |
| 348 | query_thermal_config(); |
| 349 | } |
| 350 | |
| 351 | return; |
| 352 | |
| 353 | error: |
| 354 | error_cleanup(); |
| 355 | return; |
| 356 | } |
| 357 | |
| 358 | /* |
| 359 | * Reset to default global display/GPU/scheduler configuration. |
| 360 | */ |
| 361 | static void unset_vr_thermal_configuration() { |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 362 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 363 | int result = 1; |
| 364 | if (error_state) { |
| 365 | return; |
| 366 | } |
| 367 | |
| 368 | //disable VR configs |
| 369 | for (unsigned int i = 0; i < vr_thermal_cfgs.num_cfgs; i++) { |
| 370 | result = disable_config(vr_thermal_cfgs.cfgs[i].config_name, vr_thermal_cfgs.cfgs[i].algo_name); |
| 371 | if (result != 1) { |
| 372 | goto error; |
| 373 | } |
| 374 | } |
| 375 | |
| 376 | // enable non-VR profile |
| 377 | for (unsigned int i = 0; i < non_vr_thermal_cfgs.num_cfgs; i++) { |
| 378 | result = enable_config(non_vr_thermal_cfgs.cfgs[i].config_name, non_vr_thermal_cfgs.cfgs[i].algo_name); |
| 379 | if (result != 1) { |
| 380 | goto error; |
| 381 | } |
| 382 | } |
| 383 | |
| 384 | if (DEBUG) { |
| 385 | query_thermal_config(); |
| 386 | } |
| 387 | |
| 388 | return; |
| 389 | |
| 390 | error: |
| 391 | error_cleanup(); |
| 392 | return; |
| 393 | } |
| 394 | |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 395 | static void vr_init(struct vr_module *module){ |
| 396 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 397 | int success = load_thermal_client(); |
| 398 | if (success != 0) { |
| 399 | ALOGE("failed to load thermal client"); |
| 400 | error_state = 1; |
| 401 | } |
| 402 | success = load_thermal_cfg_info(&non_vr_thermal_cfgs, &vr_thermal_cfgs); |
| 403 | if (success != 0) { |
| 404 | ALOGE("failed to load thermal configs"); |
| 405 | error_state = 1; |
| 406 | } |
| 407 | |
| 408 | } |
| 409 | |
Rohit Bandi | 2df5b73 | 2017-09-18 12:37:11 -0700 | [diff] [blame] | 410 | static void vr_set_vr_mode(struct vr_module *module, bool enabled){ |
| 411 | ALOGD("Entering %s",__func__); |
Sathish Ambley | 519f68e | 2017-07-19 10:26:51 -0700 | [diff] [blame] | 412 | if (enabled) { |
| 413 | set_vr_thermal_configuration(); |
| 414 | } else { |
| 415 | unset_vr_thermal_configuration(); |
| 416 | } |
| 417 | } |
| 418 | |
| 419 | static struct hw_module_methods_t vr_module_methods = { |
| 420 | .open = NULL, // There are no devices for this HAL interface. |
| 421 | }; |
| 422 | |
| 423 | |
| 424 | vr_module_t HAL_MODULE_INFO_SYM = { |
| 425 | .common = { |
| 426 | .tag = HARDWARE_MODULE_TAG, |
| 427 | .module_api_version = VR_MODULE_API_VERSION_1_0, |
| 428 | .hal_api_version = HARDWARE_HAL_API_VERSION, |
| 429 | .id = VR_HARDWARE_MODULE_ID, |
| 430 | .name = "VR HAL", |
| 431 | .author = "Code Aurora Forum", |
| 432 | .methods = &vr_module_methods, |
| 433 | }, |
| 434 | |
| 435 | .init = vr_init, |
| 436 | .set_vr_mode = vr_set_vr_mode, |
| 437 | }; |