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