blob: 034a19c794b9b2beff73c372bab26d4793ea390c [file] [log] [blame]
/* Copyright (c) 2017-2018, The Linux Foundation. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials provided
* with the distribution.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <errno.h>
#include <string.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <dlfcn.h>
#include <stdlib.h>
#include <pthread.h>
#include <unistd.h>
#define LOG_TAG "QTI PowerHAL"
#include <utils/Log.h>
#include <hardware/hardware.h>
#include <hardware/power.h>
#include "utils.h"
#include "metadata-defs.h"
#include "hint-data.h"
#include "performance.h"
#include "power-common.h"
static int display_fd;
#define SYS_DISPLAY_PWR "/sys/kernel/hbtp/display_pwr"
int set_interactive_override(struct power_module *module, int on)
{
static const char *display_on = "1";
static const char *display_off = "0";
char err_buf[80];
static int init_interactive_hint = 0;
static int set_i_count = 0;
int rc = 0;
set_i_count ++;
ALOGI("Got set_interactive hint on= %d, count= %d\n", on, set_i_count);
if (init_interactive_hint == 0)
{
//First time the display is turned off
display_fd = TEMP_FAILURE_RETRY(open(SYS_DISPLAY_PWR, O_RDWR));
if (display_fd < 0) {
strerror_r(errno,err_buf,sizeof(err_buf));
ALOGE("Error opening %s: %s\n", SYS_DISPLAY_PWR, err_buf);
}
else
init_interactive_hint = 1;
}
else
if (!on ) {
/* Display off. */
rc = TEMP_FAILURE_RETRY(write(display_fd, display_off, strlen(display_off)));
if (rc < 0) {
strerror_r(errno,err_buf,sizeof(err_buf));
ALOGE("Error writing %s to %s: %s\n", display_off, SYS_DISPLAY_PWR, err_buf);
}
}
else {
/* Display on */
rc = TEMP_FAILURE_RETRY(write(display_fd, display_on, strlen(display_on)));
if (rc < 0) {
strerror_r(errno,err_buf,sizeof(err_buf));
ALOGE("Error writing %s to %s: %s\n", display_on, SYS_DISPLAY_PWR, err_buf);
}
}
return HINT_HANDLED; /* Don't excecute this code path, not in use */
}