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      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 #include <cutils/properties.h>
     21 
     22 #include <hardware/vr.h>
     23 #include <hardware/hardware.h>
     24 
     25 static void restart_thermal_engine() {
     26     if (property_set("ctl.restart", "vendor.thermal-engine")) {
     27         ALOGE("%s: couldn't set a system property, "
     28               "ctl.restart.", __FUNCTION__);
     29     }
     30 }
     31 
     32 static void vr_init(struct vr_module *module) {
     33     // NOOP
     34 }
     35 
     36 static void vr_set_vr_mode(struct vr_module *module, bool enabled) {
     37     if (enabled) {
     38         if (property_set("sys.qcom.thermalcfg", "/vendor/etc/thermal-engine-vr.conf")) {
     39             ALOGE("%s: couldn't set a system property, "
     40                   "sys.qcom.thermalcfg.", __FUNCTION__);
     41         }
     42     } else {
     43         if (property_set("sys.qcom.thermalcfg", "/vendor/etc/thermal-engine.conf")) {
     44             ALOGE("%s: couldn't set a system property, "
     45                   "sys.qcom.thermalcfg.", __FUNCTION__);
     46         }
     47     }
     48     restart_thermal_engine();
     49 }
     50 
     51 static struct hw_module_methods_t vr_module_methods = {
     52     .open = NULL, // There are no devices for this HAL interface.
     53 };
     54 
     55 
     56 vr_module_t HAL_MODULE_INFO_SYM = {
     57     .common = {
     58         .tag                = HARDWARE_MODULE_TAG,
     59         .module_api_version = VR_MODULE_API_VERSION_1_0,
     60         .hal_api_version    = HARDWARE_HAL_API_VERSION,
     61         .id                 = VR_HARDWARE_MODULE_ID,
     62         .name               = "Marlin / Sailfish VR HAL",
     63         .author             = "The Android Open Source Project",
     64         .methods            = &vr_module_methods,
     65     },
     66 
     67     .init = vr_init,
     68     .set_vr_mode = vr_set_vr_mode,
     69 };
     70