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authorandroid-build-team Robot <android-build-team-robot@google.com>2018-07-27 03:14:31 +0000
committerandroid-build-team Robot <android-build-team-robot@google.com>2018-07-27 03:14:31 +0000
commitdb1b1d8342ea8bff3b9c043de2079e6e052543d6 (patch)
tree90b08735094ac972cc351653526c210904727c0f
parentdba8db24b2a9ed071d7a35fda31928ad34b178d5 (diff)
parent646ca615b6478219022f69de978a103c1bf718af (diff)
downloadthermal-db1b1d8342ea8bff3b9c043de2079e6e052543d6.tar.gz
Snap for 4916303 from 646ca615b6478219022f69de978a103c1bf718af to pi-qpr1-release
Change-Id: I0fc9b1fdb996d5f44886897b9569be2ca10bd034
-rw-r--r--Android.mk44
-rw-r--r--thermal-845.c192
-rw-r--r--thermal-8998.c193
-rw-r--r--thermal-default.c36
-rw-r--r--thermal.c187
5 files changed, 652 insertions, 0 deletions
diff --git a/Android.mk b/Android.mk
new file mode 100644
index 0000000..c8725dd
--- /dev/null
+++ b/Android.mk
@@ -0,0 +1,44 @@
+# Copyright (C) 2015 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.
+
+LOCAL_PATH := $(call my-dir)
+
+include $(CLEAR_VARS)
+
+LOCAL_MODULE := thermal.$(TARGET_BOARD_PLATFORM)
+LOCAL_MODULE_RELATIVE_PATH := hw
+LOCAL_PROPRIETARY_MODULE := true
+
+ifeq ($(call is-board-platform-in-list,msm8998), true)
+LOCAL_SRC_FILES := thermal.c
+LOCAL_SRC_FILES += thermal-8998.c
+SUPPORT_THERMAL_HAL:=1
+endif
+
+ifeq ($(call is-board-platform-in-list,sdm845), true)
+LOCAL_SRC_FILES := thermal.c
+LOCAL_SRC_FILES += thermal-845.c
+SUPPORT_THERMAL_HAL:=1
+endif
+
+ifeq ($(SUPPORT_THERMAL_HAL),)
+LOCAL_SRC_FILES := thermal-default.c
+endif
+
+LOCAL_HEADER_LIBRARIES := libutils_headers libhardware_headers
+LOCAL_SHARED_LIBRARIES := liblog libcutils
+LOCAL_MODULE_TAGS := optional
+LOCAL_CFLAGS := -Wno-unused-parameter
+
+include $(BUILD_SHARED_LIBRARY)
diff --git a/thermal-845.c b/thermal-845.c
new file mode 100644
index 0000000..a6a9e3e
--- /dev/null
+++ b/thermal-845.c
@@ -0,0 +1,192 @@
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ * Not a contribution
+ * 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.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LOG_TAG "ThermalHAL-845"
+#include <utils/Log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/thermal.h>
+
+#define MAX_LENGTH 50
+
+#define TEMPERATURE_FILE_FORMAT "/sys/class/thermal/thermal_zone%d/temp"
+
+#define BATTERY_SENSOR_NUM 60
+#define GPU_SENSOR_NUM 11
+#define SKIN_SENSOR_NUM 56
+
+const int CPU_SENSORS[] = {1, 2, 3, 4, 7, 8, 9,10};
+
+#define CPU_NUM (sizeof(CPU_SENSORS) / sizeof(int))
+// Sum of CPU_NUM + 3 for GPU, BATTERY, and SKIN.
+#define TEMPERATURE_NUM (CPU_NUM + 3)
+
+//therm-reset-temp
+#define CPU_SHUTDOWN_THRESHOLD 115
+//limit-temp
+#define CPU_THROTTLING_THRESHOLD 60
+#define BATTERY_SHUTDOWN_THRESHOLD 60
+//must match thermal-engine.conf
+#define SKIN_THROTTLING_THRESHOLD 44
+#define SKIN_SHUTDOWN_THRESHOLD 70
+#define VR_THROTTLED_BELOW_MIN 58
+
+#define GPU_LABEL "GPU"
+#define BATTERY_LABEL "battery"
+#define SKIN_LABEL "skin"
+
+const char *CPU_LABEL[] = {"CPU0", "CPU1", "CPU2", "CPU3", "CPU4", "CPU5", "CPU6", "CPU7"};
+
+const char *get_cpu_label(unsigned int cpu_num) {
+ ALOGD("Entering %s",__func__);
+ if(cpu_num >= CPU_NUM)
+ return NULL;
+
+ return CPU_LABEL[cpu_num];
+}
+
+size_t get_num_cpus() {
+ ALOGD("Entering %s",__func__);
+ return CPU_NUM;
+}
+
+/**
+ * Reads device temperature.
+ *
+ * @param sensor_num Number of sensor file with temperature.
+ * @param type Device temperature type.
+ * @param name Device temperature name.
+ * @param mult Multiplier used to translate temperature to Celsius.
+ * @param throttling_threshold Throttling threshold for the temperature.
+ * @param shutdown_threshold Shutdown threshold for the temperature.
+ * @param out Pointer to temperature_t structure that will be filled with current
+ * values.
+ *
+ * @return 0 on success or negative value -errno on error.
+ */
+static ssize_t read_temperature(int sensor_num, int type, const char *name, float mult,
+ float throttling_threshold, float shutdown_threshold, float vr_throttling_threshold,
+ temperature_t *out) {
+ ALOGD("Entering %s",__func__);
+ FILE *file;
+ char file_name[MAX_LENGTH];
+ float temp;
+
+ snprintf(file_name, sizeof(file_name), TEMPERATURE_FILE_FORMAT, sensor_num);
+ file = fopen(file_name, "r");
+ if (file == NULL) {
+ ALOGE("%s: failed to open: %s", __func__, strerror(errno));
+ return -errno;
+ }
+ if (1 != fscanf(file, "%f", &temp)) {
+ fclose(file);
+ ALOGE("%s: failed to read a float: %s", __func__, strerror(errno));
+ return errno ? -errno : -EIO;
+ }
+
+ fclose(file);
+
+ (*out) = (temperature_t) {
+ .type = type,
+ .name = name,
+ .current_value = temp * mult,
+ .throttling_threshold = throttling_threshold,
+ .shutdown_threshold = shutdown_threshold,
+ .vr_throttling_threshold = vr_throttling_threshold
+ };
+
+ return 0;
+}
+
+static ssize_t get_cpu_temperatures(temperature_t *list, size_t size) {
+ ALOGD("Entering %s",__func__);
+ size_t cpu;
+ for (cpu = 0; cpu < CPU_NUM; cpu++) {
+ if (cpu >= size) {
+ break;
+ }
+ // tsens_tz_sensor[4,6,9,11]: temperature in decidegrees Celsius.
+ ssize_t result = read_temperature(CPU_SENSORS[cpu], DEVICE_TEMPERATURE_CPU, CPU_LABEL[cpu],
+ 0.001, CPU_THROTTLING_THRESHOLD, CPU_SHUTDOWN_THRESHOLD, UNKNOWN_TEMPERATURE,
+ &list[cpu]);
+ if (result != 0) {
+ return result;
+ }
+ }
+
+ return cpu;
+}
+
+ssize_t get_temperatures(thermal_module_t *module, temperature_t *list, size_t size) {
+ ALOGD("Entering %s",__func__);
+ ssize_t result = 0;
+ size_t current_index = 0;
+
+ if (list == NULL) {
+ return TEMPERATURE_NUM;
+ }
+
+ result = get_cpu_temperatures(list, size);
+ if (result < 0) {
+ return result;
+ }
+ current_index += result;
+
+ // GPU temperature.
+ if (current_index < size) {
+ // tsens_tz_sensor14: temperature in millidegrees Celsius.
+ result = read_temperature(GPU_SENSOR_NUM, DEVICE_TEMPERATURE_GPU, GPU_LABEL, 0.001,
+ UNKNOWN_TEMPERATURE, UNKNOWN_TEMPERATURE, UNKNOWN_TEMPERATURE,
+ &list[current_index]);
+ if (result < 0) {
+ return result;
+ }
+ current_index++;
+ }
+
+ // Battery temperature.
+ if (current_index < size) {
+ // tsens_tz_sensor29: battery: temperature in millidegrees Celsius.
+ result = read_temperature(BATTERY_SENSOR_NUM, DEVICE_TEMPERATURE_BATTERY, BATTERY_LABEL,
+ 0.001, UNKNOWN_TEMPERATURE, BATTERY_SHUTDOWN_THRESHOLD, UNKNOWN_TEMPERATURE,
+ &list[current_index]);
+ if (result < 0) {
+ return result;
+ }
+ current_index++;
+ }
+
+ // Skin temperature.
+ if (current_index < size) {
+ // tsens_tz_sensor24: temperature in millidegrees Celsius.
+ result = read_temperature(SKIN_SENSOR_NUM, DEVICE_TEMPERATURE_SKIN, SKIN_LABEL, .001,
+ SKIN_THROTTLING_THRESHOLD, SKIN_SHUTDOWN_THRESHOLD, VR_THROTTLED_BELOW_MIN,
+ &list[current_index]);
+ if (result < 0) {
+ return result;
+ }
+ current_index++;
+ }
+ return TEMPERATURE_NUM;
+}
diff --git a/thermal-8998.c b/thermal-8998.c
new file mode 100644
index 0000000..a43159b
--- /dev/null
+++ b/thermal-8998.c
@@ -0,0 +1,193 @@
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ * Not a contribution
+ * 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.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LOG_TAG "ThermalHAL-8998"
+#include <utils/Log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/thermal.h>
+
+#define MAX_LENGTH 50
+
+#define TEMPERATURE_FILE_FORMAT "/sys/class/thermal/thermal_zone%d/temp"
+
+#define BATTERY_SENSOR_NUM 0
+#define GPU_SENSOR_NUM 17
+#define SKIN_SENSOR_NUM 5
+
+const int CPU_SENSORS[] = {8, 9, 10, 11, 12, 13, 14,15};
+
+#define CPU_NUM (sizeof(CPU_SENSORS) / sizeof(int))
+// Sum of CPU_NUM + 3 for GPU, BATTERY, and SKIN.
+#define TEMPERATURE_NUM (CPU_NUM + 3)
+
+//therm-reset-temp
+#define CPU_SHUTDOWN_THRESHOLD 115
+//limit-temp
+#define CPU_THROTTLING_THRESHOLD 60
+#define BATTERY_SHUTDOWN_THRESHOLD 60
+//must match thermal-engine.conf
+#define SKIN_THROTTLING_THRESHOLD 44
+#define SKIN_SHUTDOWN_THRESHOLD 70
+#define VR_THROTTLED_BELOW_MIN 58
+
+#define GPU_LABEL "GPU"
+#define BATTERY_LABEL "battery"
+#define SKIN_LABEL "skin"
+
+const char *CPU_LABEL[] = {"CPU0", "CPU1", "CPU2", "CPU3", "CPU4", "CPU5", "CPU6", "CPU7"};
+
+const char *get_cpu_label(unsigned int cpu_num) {
+
+ if(cpu_num >= CPU_NUM)
+ return NULL;
+
+ return CPU_LABEL[cpu_num];
+}
+
+size_t get_num_cpus() {
+ return CPU_NUM;
+}
+
+/**
+ * Reads device temperature.
+ *
+ * @param sensor_num Number of sensor file with temperature.
+ * @param type Device temperature type.
+ * @param name Device temperature name.
+ * @param mult Multiplier used to translate temperature to Celsius.
+ * @param throttling_threshold Throttling threshold for the temperature.
+ * @param shutdown_threshold Shutdown threshold for the temperature.
+ * @param out Pointer to temperature_t structure that will be filled with current
+ * values.
+ *
+ * @return 0 on success or negative value -errno on error.
+ */
+static ssize_t read_temperature(int sensor_num, int type, const char *name, float mult,
+ float throttling_threshold, float shutdown_threshold, float vr_throttling_threshold,
+ temperature_t *out)
+{
+ ALOGD("Entering %s",__func__);
+ FILE *file;
+ char file_name[MAX_LENGTH];
+ float temp;
+
+ snprintf(file_name, sizeof(file_name), TEMPERATURE_FILE_FORMAT, sensor_num);
+ file = fopen(file_name, "r");
+ if (file == NULL) {
+ ALOGE("%s: failed to open: %s", __func__, strerror(errno));
+ return -errno;
+ }
+ if (1 != fscanf(file, "%f", &temp)) {
+ fclose(file);
+ ALOGE("%s: failed to read a float: %s", __func__, strerror(errno));
+ return errno ? -errno : -EIO;
+ }
+
+ fclose(file);
+
+ (*out) = (temperature_t) {
+ .type = type,
+ .name = name,
+ .current_value = temp * mult,
+ .throttling_threshold = throttling_threshold,
+ .shutdown_threshold = shutdown_threshold,
+ .vr_throttling_threshold = vr_throttling_threshold
+ };
+
+ return 0;
+}
+
+static ssize_t get_cpu_temperatures(temperature_t *list, size_t size)
+{
+ ALOGD("Entering %s",__func__);
+ size_t cpu;
+ for (cpu = 0; cpu < CPU_NUM; cpu++) {
+ if (cpu >= size) {
+ break;
+ }
+ // tsens_tz_sensor[4,6,9,11]: temperature in decidegrees Celsius.
+ ssize_t result = read_temperature(CPU_SENSORS[cpu], DEVICE_TEMPERATURE_CPU, CPU_LABEL[cpu],
+ 0.1, CPU_THROTTLING_THRESHOLD, CPU_SHUTDOWN_THRESHOLD, UNKNOWN_TEMPERATURE,
+ &list[cpu]);
+ if (result != 0) {
+ return result;
+ }
+ }
+
+ return cpu;
+}
+
+ssize_t get_temperatures(thermal_module_t *module, temperature_t *list, size_t size) {
+ ALOGD("Entering %s",__func__);
+ ssize_t result = 0;
+ size_t current_index = 0;
+
+ if (list == NULL) {
+ return TEMPERATURE_NUM;
+ }
+
+ result = get_cpu_temperatures(list, size);
+ if (result < 0) {
+ return result;
+ }
+ current_index += result;
+
+ // GPU temperature.
+ if (current_index < size) {
+ // tsens_tz_sensor14: temperature in decidegrees Celsius.
+ result = read_temperature(GPU_SENSOR_NUM, DEVICE_TEMPERATURE_GPU, GPU_LABEL, 0.1,
+ UNKNOWN_TEMPERATURE, UNKNOWN_TEMPERATURE, UNKNOWN_TEMPERATURE,
+ &list[current_index]);
+ if (result < 0) {
+ return result;
+ }
+ current_index++;
+ }
+
+ // Battery temperature.
+ if (current_index < size) {
+ // tsens_tz_sensor29: battery: temperature in millidegrees Celsius.
+ result = read_temperature(BATTERY_SENSOR_NUM, DEVICE_TEMPERATURE_BATTERY, BATTERY_LABEL,
+ 0.001, UNKNOWN_TEMPERATURE, BATTERY_SHUTDOWN_THRESHOLD, UNKNOWN_TEMPERATURE,
+ &list[current_index]);
+ if (result < 0) {
+ return result;
+ }
+ current_index++;
+ }
+
+ // Skin temperature.
+ if (current_index < size) {
+ // tsens_tz_sensor24: temperature in Celsius.
+ result = read_temperature(SKIN_SENSOR_NUM, DEVICE_TEMPERATURE_SKIN, SKIN_LABEL, 1.,
+ SKIN_THROTTLING_THRESHOLD, SKIN_SHUTDOWN_THRESHOLD, VR_THROTTLED_BELOW_MIN,
+ &list[current_index]);
+ if (result < 0) {
+ return result;
+ }
+ current_index++;
+ }
+ return TEMPERATURE_NUM;
+}
diff --git a/thermal-default.c b/thermal-default.c
new file mode 100644
index 0000000..d5202a7
--- /dev/null
+++ b/thermal-default.c
@@ -0,0 +1,36 @@
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ * Not a contribution
+ * 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.
+ */
+
+#include <hardware/hardware.h>
+#include <hardware/thermal.h>
+
+static struct hw_module_methods_t thermal_module_methods = {
+ .open = NULL,
+};
+
+thermal_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = THERMAL_HARDWARE_MODULE_API_VERSION_0_1,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = THERMAL_HARDWARE_MODULE_ID,
+ .name = "Default Thermal HAL",
+ .author = "The Android Open Source Project",
+ .methods = &thermal_module_methods,
+ },
+};
diff --git a/thermal.c b/thermal.c
new file mode 100644
index 0000000..684c52f
--- /dev/null
+++ b/thermal.c
@@ -0,0 +1,187 @@
+/*
+ * Copyright (c) 2017, The Linux Foundation. All rights reserved.
+ * Not a contribution
+ * 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.
+ */
+
+#include <ctype.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <stdlib.h>
+#include <string.h>
+
+#define LOG_TAG "ThermalHAL"
+#include <utils/Log.h>
+
+#include <hardware/hardware.h>
+#include <hardware/thermal.h>
+
+#define MAX_LENGTH 50
+
+#define CPU_USAGE_FILE "/proc/stat"
+#define CPU_ONLINE_FILE_FORMAT "/sys/devices/system/cpu/cpu%d/online"
+#define CPU_PRESENT_FILE "/sys/devices/system/cpu/present"
+
+const char * __attribute__ ((weak)) get_cpu_label(unsigned int cpu_num) {
+ ALOGD("Entering %s",__func__);
+ static const char * cpu_label = "cpu";
+ return cpu_label;
+}
+
+size_t __attribute__ ((weak)) get_num_cpus() {
+ ALOGD("Entering %s",__func__);
+ FILE *file;
+ char *line = NULL;
+ size_t len = 0;
+ static size_t cpus = 0;
+ ssize_t read;
+
+ if(cpus) return cpus;
+
+ file = fopen(CPU_PRESENT_FILE, "r");
+ if (file == NULL) {
+ ALOGE("%s: failed to open: %s", __func__, strerror(errno));
+ return 0;
+ }
+
+ if ((read = getline(&line, &len, file)) != -1) {
+ if (strnlen(line, read) < 3 || strncmp(line, "0-", 2) != 0 || !isdigit(line[2]))
+ ALOGE("%s: Incorrect cpu present file format", __func__);
+ else
+ cpus = atoi(&line[2]) + 1;
+
+ free(line);
+ }
+ else
+ ALOGE("%s: failed to read cpu present file: %s", __func__, strerror(errno));
+
+ fclose(file);
+ return cpus;
+}
+
+ssize_t __attribute__ ((weak)) get_temperatures(thermal_module_t *module, temperature_t *list, size_t size) {
+ ALOGD("Entering %s",__func__);
+ return 0;
+}
+
+static ssize_t get_cpu_usages(thermal_module_t *module, cpu_usage_t *list) {
+ ALOGD("Entering %s",__func__);
+ int vals, cpu_num, online;
+ ssize_t read;
+ uint64_t user, nice, system, idle, active, total;
+ char *line = NULL;
+ size_t len = 0;
+ size_t size = 0;
+ size_t cpus = 0;
+ char file_name[MAX_LENGTH];
+ FILE *file;
+ FILE *cpu_file;
+
+ cpus = get_num_cpus();
+ if (!cpus)
+ return errno ? -errno : -EIO;
+
+ if (list == NULL)
+ return cpus;
+
+ file = fopen(CPU_USAGE_FILE, "r");
+ if (file == NULL) {
+ ALOGE("%s: failed to open: %s", __func__, strerror(errno));
+ return -errno;
+ }
+
+ while ((read = getline(&line, &len, file)) != -1) {
+ if (strnlen(line, read) < 4 || strncmp(line, "cpu", 3) != 0 || !isdigit(line[3])) {
+ free(line);
+ line = NULL;
+ len = 0;
+ continue;
+ }
+
+ vals = sscanf(line, "cpu%d %" SCNu64 " %" SCNu64 " %" SCNu64 " %" SCNu64, &cpu_num, &user,
+ &nice, &system, &idle);
+
+ free(line);
+ line = NULL;
+ len = 0;
+
+ if (vals != 5 || size == cpus) {
+ if (vals != 5) {
+ ALOGE("%s: failed to read CPU information from file: %s", __func__,
+ strerror(errno));
+ } else {
+ ALOGE("/proc/stat file has incorrect format.");
+ }
+ fclose(file);
+ return errno ? -errno : -EIO;
+ }
+
+ active = user + nice + system;
+ total = active + idle;
+
+ // Read online CPU information.
+ snprintf(file_name, MAX_LENGTH, CPU_ONLINE_FILE_FORMAT, cpu_num);
+ cpu_file = fopen(file_name, "r");
+ online = 0;
+ if (cpu_file == NULL) {
+ ALOGE("%s: failed to open file: %s (%s)", __func__, file_name, strerror(errno));
+ fclose(file);
+ return -errno;
+ }
+ if (1 != fscanf(cpu_file, "%d", &online)) {
+ ALOGE("%s: failed to read CPU online information from file: %s (%s)", __func__,
+ file_name, strerror(errno));
+ fclose(file);
+ fclose(cpu_file);
+ return errno ? -errno : -EIO;
+ }
+ fclose(cpu_file);
+
+ list[size] = (cpu_usage_t) {
+ .name = get_cpu_label(size),
+ .active = active,
+ .total = total,
+ .is_online = online
+ };
+
+ size++;
+ }
+ fclose(file);
+
+ if (size != cpus) {
+ ALOGE("/proc/stat file has incorrect format.");
+ return -EIO;
+ }
+
+ return cpus;
+}
+
+static struct hw_module_methods_t thermal_module_methods = {
+ .open = NULL,
+};
+
+thermal_module_t HAL_MODULE_INFO_SYM = {
+ .common = {
+ .tag = HARDWARE_MODULE_TAG,
+ .module_api_version = THERMAL_HARDWARE_MODULE_API_VERSION_0_1,
+ .hal_api_version = HARDWARE_HAL_API_VERSION,
+ .id = THERMAL_HARDWARE_MODULE_ID,
+ .name = "Thermal HAL",
+ .author = "The Android Open Source Project",
+ .methods = &thermal_module_methods,
+ },
+ .getTemperatures = get_temperatures,
+ .getCpuUsages = get_cpu_usages,
+};