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/*
* Copyright (c) 2015 The CyanogenMod 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 <errno.h>
#include <string.h>
#include <fcntl.h>
#include <hardware/power.h>
#define LOG_TAG "PowerHAL"
#include <utils/Log.h>
struct local_power_module {
struct power_module base;
};
#define BUF_SIZE 80
static void sysfs_write(const char *path, const char *const s) {
char buf[BUF_SIZE];
int len;
int fd = open(path, O_WRONLY);
if (fd < 0) {
strerror_r(errno, buf, sizeof(buf));
ALOGE("Error opening %s: %s\n", path, buf);
return;
}
len = write(fd, s, strlen(s));
if (len < 0) {
strerror_r(errno, buf, sizeof(buf));
ALOGE("Error writing to %s: %s\n", path, buf);
}
close(fd);
}
static void power_init(struct power_module *) {
}
static void power_set_interactive(struct power_module *, int on __unused) {
}
static void power_hint(struct power_module *module __unused, power_hint_t hint __unused, void *data __unused) {
}
static struct hw_module_methods_t power_module_methods = {
.open = NULL,
};
void set_feature(struct power_module *module __unused, feature_t feature, int state)
{
char tmp_str[BUF_SIZE];
#ifdef TAP_TO_WAKE_NODE
if (feature == POWER_FEATURE_DOUBLE_TAP_TO_WAKE) {
snprintf(tmp_str, BUF_SIZE, "%d", state);
sysfs_write(TAP_TO_WAKE_NODE, tmp_str);
}
#endif
}
struct local_power_module HAL_MODULE_INFO_SYM = {
.base = {
.common = {
.tag = HARDWARE_MODULE_TAG,
.module_api_version = POWER_MODULE_API_VERSION_0_3,
.hal_api_version = HARDWARE_HAL_API_VERSION,
.id = POWER_HARDWARE_MODULE_ID,
.name = "Mofd_v1 Power HAL",
.author = "The CyanogenMod Project",
.methods = &power_module_methods,
.dso = 0,
.reserved = {0},
},
.init = power_init,
.setInteractive = power_set_interactive,
.powerHint = power_hint,
.setFeature = set_feature,
.getFeature = 0,
},
};
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