139 lines
3.2 KiB
C
Executable File
139 lines
3.2 KiB
C
Executable File
/*
|
|
* Copyright (c) 2014 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 <ctype.h>
|
|
|
|
#define LOG_TAG "PowerHAL_K_Ext"
|
|
#include <utils/Log.h>
|
|
|
|
#define MAX_INPUTS 20
|
|
#define INPUT_PREFIX "/sys/class/input/input"
|
|
#define MAX_PATH_SIZE 256
|
|
|
|
static const char *names[] = {
|
|
"sec_touchscreen", // 3
|
|
"light_sensor" // 5
|
|
"proximity_sensor" // 6
|
|
"gpio-keys" // 7
|
|
};
|
|
#define N_NAMES (sizeof(names) / sizeof(names[0]))
|
|
static char paths[N_NAMES][MAX_PATH_SIZE];
|
|
static int have_found_paths;
|
|
|
|
static size_t sysfs_read(char *path, char *buffer, size_t n)
|
|
{
|
|
char buf[MAX_PATH_SIZE];
|
|
int fd;
|
|
size_t len;
|
|
|
|
if ((fd = open(path, O_RDONLY)) < 0)
|
|
{
|
|
if (errno != ENOENT)
|
|
{
|
|
strerror_r(errno, buf, sizeof(buf));
|
|
ALOGE("Error opening %s: %s\n", path, buf);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
len = read(fd, buffer, n);
|
|
if (len < 0)
|
|
{
|
|
strerror_r(errno, buf, sizeof(buf));
|
|
ALOGE("Error reading from %s: %s\n", path, buf);
|
|
return 0;
|
|
}
|
|
|
|
while (len > 0 && isspace(buffer[len-1]))
|
|
len--;
|
|
if (len < n)
|
|
buffer[len] = '\0';
|
|
|
|
close(fd);
|
|
|
|
return len;
|
|
}
|
|
|
|
static void sysfs_write(char *path, char *s)
|
|
{
|
|
char buf[MAX_PATH_SIZE];
|
|
|
|
int fd = open(path, O_WRONLY);
|
|
if (fd < 0)
|
|
{
|
|
strerror_r(errno, buf, sizeof(buf));
|
|
ALOGE("Error opening %s: %s\n", path, buf);
|
|
return;
|
|
}
|
|
|
|
size_t 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 find_paths(void)
|
|
{
|
|
size_t i, j;
|
|
char path[MAX_PATH_SIZE];
|
|
char name[MAX_PATH_SIZE];
|
|
|
|
for (i = 0; i < N_NAMES; i++)
|
|
paths[i][0] = 0;
|
|
|
|
for (i = 0; i < MAX_INPUTS; i++)
|
|
{
|
|
sprintf(path, "%s%d/name", INPUT_PREFIX, i);
|
|
if (sysfs_read(path, name, sizeof(name)) > 0)
|
|
{
|
|
for (j = 0; j < N_NAMES; j++)
|
|
{
|
|
if (strcmp(name, names[j]) == 0)
|
|
{
|
|
sprintf(paths[j], "%s%d/enabled", INPUT_PREFIX, i);
|
|
ALOGD("%s => %s\n", names[j], paths[j]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void power_set_interactive_ext(int on)
|
|
{
|
|
ALOGD("%s: %s input devices", __func__, on ? "enabling" : "disabling");
|
|
|
|
if (!have_found_paths)
|
|
{
|
|
find_paths();
|
|
have_found_paths = 1;
|
|
}
|
|
|
|
for (size_t i = 0; i < N_NAMES; i++)
|
|
sysfs_write(paths[i], on ? "1" : "0");
|
|
}
|
|
|
|
void cm_power_set_interactive_ext(int on)
|
|
{
|
|
power_set_interactive_ext(on);
|
|
}
|