| /* |
| * Copyright (C) 2016 The Android Open Source Project |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| */ |
| |
| #define LOG_TAG "VrHALImpl" |
| |
| #include <cutils/log.h> |
| |
| #include <dlfcn.h> |
| #include <errno.h> |
| #include <fcntl.h> |
| #include <stdlib.h> |
| #include <string.h> |
| #include <sys/stat.h> |
| #include <sys/types.h> |
| |
| #include <hardware/vr.h> |
| #include <hardware/hardware.h> |
| |
| #include <thermal_client.h> |
| #include "vr_int.h" |
| |
| |
| static void *dlhandle; |
| static int (*p_thermal_client_config_query)(char *, struct config_instance **); |
| static int (*p_thermal_client_config_set)(struct config_instance *, unsigned int); |
| static void (*p_thermal_client_config_cleanup)(struct config_instance *, unsigned int); |
| |
| static int max_string_size = 36; |
| static int error_state = 0; //global error state - don't do anything if set! |
| |
| #define DEBUG 0 |
| |
| static thermal_cfg_info_t non_vr_thermal_cfgs; |
| static thermal_cfg_info_t vr_thermal_cfgs; |
| |
| int __attribute__ ((weak)) load_thermal_cfg_info(thermal_cfg_info_t *non_vr, |
| thermal_cfg_info_t *vr) { |
| ALOGD("Entering %s",__func__); |
| non_vr->num_cfgs = 0; |
| vr->num_cfgs = 0; |
| |
| return 0; |
| } |
| |
| /** |
| * Debug function for printing out a log instance |
| */ |
| static void log_config_instance(struct config_instance *instance ){ |
| ALOGI("logging config_instance 0x%p", instance); |
| ALOGI("config_instance: cfg_desc = %s", instance->cfg_desc); |
| ALOGI("config_instance: algo_type = %s", instance->algo_type); |
| ALOGI("config_instance: fields_mask = 0x%x", instance->fields_mask); |
| ALOGI("config_instance: num_fields = %u", instance->num_fields); |
| for (uint32_t i = 0; i < instance->num_fields; i++) { |
| ALOGI("config_instance: field_data[%d]", i); |
| ALOGI("\tfield_name = %s", instance->fields[i].field_name); |
| ALOGI("\tdata_type = %u", instance->fields[i].data_type); |
| ALOGI("\tnum_data = %u", instance->fields[i].num_data); |
| switch (instance->fields[i].data_type){ |
| case FIELD_INT: ALOGI("\tdata = %d", *(int*)(instance->fields[i].data)); |
| break; |
| case FIELD_STR: ALOGI("\tdata = %s", (char*)(instance->fields[i].data)); |
| break; |
| default: ALOGI("\tdata = 0x%p", instance->fields[i].data); |
| break; |
| } |
| } |
| } |
| |
| /** |
| * Debug function for printing out all instances of "ss" and "monitor" algos |
| */ |
| static void query_thermal_config(){ |
| ALOGD("Entering %s",__func__); |
| struct config_instance *instances; |
| |
| int num_configs = (*p_thermal_client_config_query)("ss", &instances); |
| if (num_configs <= 0) { |
| return; |
| } |
| for (int i = 0; i < num_configs; i++) { |
| log_config_instance(&(instances[i])); |
| } |
| if (num_configs > 0) { |
| (*p_thermal_client_config_cleanup)(instances, num_configs); |
| } |
| |
| num_configs = (*p_thermal_client_config_query)("monitor", &instances); |
| if (num_configs <= 0) { |
| return; |
| } |
| for (int i = 0; i < num_configs; i++) { |
| log_config_instance(&(instances[i])); |
| } |
| if (num_configs > 0) { |
| (*p_thermal_client_config_cleanup)(instances, num_configs); |
| } |
| } |
| |
| /** |
| * Load the thermal client library |
| * returns 0 on success |
| */ |
| static int load_thermal_client(void){ |
| ALOGD("Entering %s",__func__); |
| char *thermal_client_so = "vendor/lib64/libthermalclient.so"; |
| |
| dlhandle = dlopen(thermal_client_so, RTLD_NOW | RTLD_LOCAL); |
| if (dlhandle) { |
| dlerror(); |
| p_thermal_client_config_query = (int (*) (char *, struct config_instance **)) |
| dlsym(dlhandle, "thermal_client_config_query"); |
| if (dlerror()) { |
| ALOGE("Unable to load thermal_client_config_query"); |
| goto error_handle; |
| } |
| |
| p_thermal_client_config_set = (int (*) (struct config_instance *, unsigned int)) |
| dlsym(dlhandle, "thermal_client_config_set"); |
| if (dlerror()) { |
| ALOGE("Unable to load thermal_client_config_set"); |
| goto error_handle; |
| } |
| |
| p_thermal_client_config_cleanup = (void (*) (struct config_instance *, unsigned int)) |
| dlsym(dlhandle, "thermal_client_config_cleanup"); |
| if (dlerror()) { |
| ALOGE("Unable to load thermal_client_config_cleanup"); |
| goto error_handle; |
| } |
| } else { |
| ALOGE("unable to open %s", thermal_client_so); |
| return -1; |
| } |
| return 0; |
| |
| error_handle: |
| ALOGE("Error opening functions from %s", thermal_client_so); |
| p_thermal_client_config_query = NULL; |
| p_thermal_client_config_set = NULL; |
| p_thermal_client_config_cleanup = NULL; |
| dlclose(dlhandle); |
| dlhandle = NULL; |
| return -1; |
| } |
| |
| /** |
| * Free the config_instance as allocated in allocate_config_instance |
| */ |
| static void free_config_instance(struct config_instance *config){ |
| |
| if (config) { |
| if (config->fields) { |
| free(config->fields[0].data); |
| free(config->fields[0].field_name); |
| free(config->fields); |
| } |
| free(config->algo_type); |
| free(config->cfg_desc); |
| free(config); |
| } |
| } |
| |
| /** |
| * Allocate a new struct config_instance for modifying the disable field |
| */ |
| static struct config_instance *allocate_config_instance(){ |
| ALOGD("Entering %s",__func__); |
| struct config_instance *config = (struct config_instance *)malloc(sizeof(struct config_instance)); |
| if (!config) { |
| ALOGE("Unable to allocate memory for config"); |
| return NULL; |
| } |
| memset(config, 0, sizeof(*config)); |
| |
| config->cfg_desc = (char *)malloc(sizeof(char) * max_string_size); |
| if (!config->cfg_desc) { |
| free_config_instance(config); |
| ALOGE("Unable to allocate memory for config->cfg_desc"); |
| return NULL; |
| } |
| memset(config->cfg_desc, 0, sizeof(char)*max_string_size); |
| |
| config->algo_type = (char *)malloc(sizeof(char) * max_string_size); |
| if (!config->algo_type) { |
| free_config_instance(config); |
| ALOGE("Unable to allocate memory for config->algo_type"); |
| return NULL; |
| } |
| memset(config->algo_type, 0, sizeof(char) * max_string_size); |
| |
| config->fields = (struct field_data *)malloc(sizeof(struct field_data)); |
| if (!config->fields) { |
| free_config_instance(config); |
| ALOGE("Unable to allocate memory for config->fields"); |
| return NULL; |
| } |
| memset(config->fields, 0, sizeof(*config->fields)); |
| |
| config->fields[0].field_name = (char*)malloc(sizeof(char) * max_string_size); |
| if (!config->fields[0].field_name) { |
| free_config_instance(config); |
| ALOGE("Unable to allocate memory for config->fields[0].field_name"); |
| return NULL; |
| } |
| memset(config->fields[0].field_name, 0, sizeof(char) * max_string_size); |
| |
| config->fields[0].data = (void*)malloc(sizeof(int)); |
| if (!config->fields[0].data) { |
| free_config_instance(config); |
| ALOGE("Unable to allocate memory for config->fields[0].data"); |
| return NULL; |
| } |
| |
| return config; |
| } |
| |
| /** |
| * disable a thermal config |
| * returns 1 on success, anything else is a failure |
| */ |
| static int disable_config(char *config_name, char *algo_type){ |
| ALOGD("Entering %s",__func__); |
| int result = 0; |
| if (error_state) { |
| return 0; |
| } |
| struct config_instance *config = allocate_config_instance(); |
| if (!config) { |
| return 0; |
| } |
| strlcpy(config->cfg_desc, config_name, max_string_size); |
| strlcpy(config->algo_type, algo_type, max_string_size); |
| strlcpy(config->fields[0].field_name, "disable", max_string_size); |
| |
| config->fields_mask |= DISABLE_FIELD; |
| config->num_fields = 1; |
| config->fields[0].data_type = FIELD_INT; |
| config->fields[0].num_data = 1; |
| *(int*)(config->fields[0].data) = 1; //DISABLE |
| |
| |
| result = (*p_thermal_client_config_set)(config, 1); |
| if (DEBUG) { |
| ALOGE("disable profile: name = %s, algo_type = %s, success = %d", config_name, algo_type, result); |
| } |
| free_config_instance(config); |
| |
| return result; |
| } |
| |
| /** |
| * enable a thermal config |
| * returns 1 on success, anything else is failure |
| */ |
| static int enable_config(char *config_name, char *algo_type){ |
| ALOGD("Entering %s",__func__); |
| int result = 0; |
| if (error_state) { |
| return 0; |
| } |
| struct config_instance *config = allocate_config_instance(); |
| if (!config) { |
| return 0; |
| } |
| strlcpy(config->cfg_desc, config_name, max_string_size); |
| strlcpy(config->algo_type, algo_type, max_string_size); |
| strlcpy(config->fields[0].field_name, "disable", max_string_size); |
| |
| config->fields_mask |= DISABLE_FIELD; |
| config->num_fields = 1; |
| config->fields[0].data_type = FIELD_INT; |
| config->fields[0].num_data = 1; |
| *(int*)(config->fields[0].data) = 0; //ENABLE |
| |
| result = (*p_thermal_client_config_set)(config, 1); |
| if (DEBUG) { |
| ALOGE("enable profile: name = %s, algo_type = %s, success = %d", |
| config_name, algo_type, result); |
| } |
| |
| free_config_instance(config); |
| |
| return result; |
| } |
| |
| /** |
| * Call this if there is a compoenent-fatal error |
| * Attempts to clean up any outstanding thermal config state |
| */ |
| static void error_cleanup(){ |
| ALOGD("Entering %s",__func__); |
| //disable VR configs, best-effort so ignore return values |
| for (unsigned int i = 0; i < vr_thermal_cfgs.num_cfgs; i++) { |
| disable_config(vr_thermal_cfgs.cfgs[i].config_name, vr_thermal_cfgs.cfgs[i].algo_name); |
| } |
| |
| // enable non-VR profile, best-effort so ignore return values |
| for (unsigned int i = 0; i < non_vr_thermal_cfgs.num_cfgs; i++) { |
| enable_config(non_vr_thermal_cfgs.cfgs[i].config_name, non_vr_thermal_cfgs.cfgs[i].algo_name); |
| } |
| |
| // set global error flag |
| error_state = 1; |
| } |
| |
| /* |
| * Set global display/GPU/scheduler configuration to used for VR apps. |
| */ |
| static void set_vr_thermal_configuration() { |
| ALOGD("Entering %s",__func__); |
| int result = 1; |
| if (error_state) { |
| return; |
| } |
| //disable non-VR configs |
| for (unsigned int i = 0; i < non_vr_thermal_cfgs.num_cfgs; i++) { |
| result = disable_config(non_vr_thermal_cfgs.cfgs[i].config_name, non_vr_thermal_cfgs.cfgs[i].algo_name); |
| if (result != 1) |
| { |
| goto error; |
| } |
| } |
| |
| //enable VR configs |
| for (unsigned int i = 0; i < vr_thermal_cfgs.num_cfgs; i++) { |
| result = enable_config(vr_thermal_cfgs.cfgs[i].config_name, vr_thermal_cfgs.cfgs[i].algo_name); |
| if (result != 1) |
| { |
| goto error; |
| } |
| } |
| |
| if (DEBUG) { |
| query_thermal_config(); |
| } |
| |
| return; |
| |
| error: |
| error_cleanup(); |
| return; |
| } |
| |
| /* |
| * Reset to default global display/GPU/scheduler configuration. |
| */ |
| static void unset_vr_thermal_configuration() { |
| ALOGD("Entering %s",__func__); |
| int result = 1; |
| if (error_state) { |
| return; |
| } |
| |
| //disable VR configs |
| for (unsigned int i = 0; i < vr_thermal_cfgs.num_cfgs; i++) { |
| result = disable_config(vr_thermal_cfgs.cfgs[i].config_name, vr_thermal_cfgs.cfgs[i].algo_name); |
| if (result != 1) { |
| goto error; |
| } |
| } |
| |
| // enable non-VR profile |
| for (unsigned int i = 0; i < non_vr_thermal_cfgs.num_cfgs; i++) { |
| result = enable_config(non_vr_thermal_cfgs.cfgs[i].config_name, non_vr_thermal_cfgs.cfgs[i].algo_name); |
| if (result != 1) { |
| goto error; |
| } |
| } |
| |
| if (DEBUG) { |
| query_thermal_config(); |
| } |
| |
| return; |
| |
| error: |
| error_cleanup(); |
| return; |
| } |
| |
| static void vr_init(struct vr_module *module){ |
| ALOGD("Entering %s",__func__); |
| int success = load_thermal_client(); |
| if (success != 0) { |
| ALOGE("failed to load thermal client"); |
| error_state = 1; |
| } |
| success = load_thermal_cfg_info(&non_vr_thermal_cfgs, &vr_thermal_cfgs); |
| if (success != 0) { |
| ALOGE("failed to load thermal configs"); |
| error_state = 1; |
| } |
| |
| } |
| |
| static void vr_set_vr_mode(struct vr_module *module, bool enabled){ |
| ALOGD("Entering %s",__func__); |
| if (enabled) { |
| set_vr_thermal_configuration(); |
| } else { |
| unset_vr_thermal_configuration(); |
| } |
| } |
| |
| static struct hw_module_methods_t vr_module_methods = { |
| .open = NULL, // There are no devices for this HAL interface. |
| }; |
| |
| |
| vr_module_t HAL_MODULE_INFO_SYM = { |
| .common = { |
| .tag = HARDWARE_MODULE_TAG, |
| .module_api_version = VR_MODULE_API_VERSION_1_0, |
| .hal_api_version = HARDWARE_HAL_API_VERSION, |
| .id = VR_HARDWARE_MODULE_ID, |
| .name = "VR HAL", |
| .author = "Code Aurora Forum", |
| .methods = &vr_module_methods, |
| }, |
| |
| .init = vr_init, |
| .set_vr_mode = vr_set_vr_mode, |
| }; |
