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/*
* Copyright (c) 2016, 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.
*/
#define LOG_NIDEBUG 0
#include <dlfcn.h>
#include <errno.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>
#include <sys/types.h>
#include <unistd.h>
#define LOG_TAG "QTI PowerHAL"
#include <hardware/hardware.h>
#include <hardware/power.h>
#include <log/log.h>
#include "hint-data.h"
#include "metadata-defs.h"
#include "performance.h"
#include "power-common.h"
#include "utils.h"
static int video_encode_hint_sent;
static int display_fd;
#define SYS_DISPLAY_PWR "/sys/kernel/hbtp/display_pwr"
/**
* Returns true if the target is SDM632.
*/
static bool is_target_SDM632(void) {
static int is_SDM632 = -1;
int soc_id;
if (is_SDM632 >= 0) return is_SDM632;
soc_id = get_soc_id();
is_SDM632 = soc_id == 349 || soc_id == 350;
return is_SDM632;
}
static int process_video_encode_hint(void* metadata) {
char governor[80];
struct video_encode_metadata_t video_encode_metadata;
if (!metadata) return HINT_NONE;
if (get_scaling_governor(governor, sizeof(governor)) == -1) {
ALOGE("Can't obtain scaling governor.");
return HINT_NONE;
}
/* Initialize encode metadata struct fields */
memset(&video_encode_metadata, 0, sizeof(struct video_encode_metadata_t));
video_encode_metadata.state = -1;
video_encode_metadata.hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
if (parse_video_encode_metadata((char*)metadata, &video_encode_metadata) == -1) {
ALOGE("Error occurred while parsing metadata.");
return HINT_NONE;
}
if (video_encode_metadata.state == 1) {
if (is_schedutil_governor(governor)) {
if (is_target_SDM632()) {
/* sample_ms = 10mS
* SLB for Core0 = -6
* SLB for Core1 = -6
* SLB for Core2 = -6
* SLB for Core3 = -6
* hispeed load = 95
* hispeed freq = 1036 */
int resource_values[] = {CPUBW_HWMON_SAMPLE_MS,
0xa,
0x40c68100,
0xfffffffa,
0x40c68110,
0xfffffffa,
0x40c68120,
0xfffffffa,
0x40c68130,
0xfffffffa,
0x41440100,
0x5f,
0x4143c100,
0x40c};
if (!video_encode_hint_sent) {
perform_hint_action(video_encode_metadata.hint_id, resource_values,
ARRAY_SIZE(resource_values));
video_encode_hint_sent = 1;
return HINT_HANDLED;
}
} else {
/* sample_ms = 10mS */
int resource_values[] = {CPUBW_HWMON_SAMPLE_MS, 0xa};
if (!video_encode_hint_sent) {
perform_hint_action(video_encode_metadata.hint_id, resource_values,
ARRAY_SIZE(resource_values));
video_encode_hint_sent = 1;
return HINT_HANDLED;
}
}
} else if (is_interactive_governor(governor)) {
/* Sched_load and migration_notification disable
* timer rate - 40mS*/
int resource_values[] = {INT_OP_CLUSTER0_USE_SCHED_LOAD, 0x1,
INT_OP_CLUSTER0_USE_MIGRATION_NOTIF, 0x1,
INT_OP_CLUSTER0_TIMER_RATE, BIG_LITTLE_TR_MS_40};
if (!video_encode_hint_sent) {
perform_hint_action(video_encode_metadata.hint_id, resource_values,
ARRAY_SIZE(resource_values));
video_encode_hint_sent = 1;
return HINT_HANDLED;
}
}
} else if (video_encode_metadata.state == 0) {
if (is_interactive_governor(governor) || is_schedutil_governor(governor)) {
undo_hint_action(video_encode_metadata.hint_id);
video_encode_hint_sent = 0;
return HINT_HANDLED;
}
}
return HINT_NONE;
}
int power_hint_override(power_hint_t hint, void* data) {
int ret_val = HINT_NONE;
switch (hint) {
case POWER_HINT_VIDEO_ENCODE:
ret_val = process_video_encode_hint(data);
break;
default:
break;
}
return ret_val;
}
int set_interactive_override(int on) {
char governor[80];
int rc = 0;
static const char* display_on = "1";
static const char* display_off = "0";
char err_buf[80];
static int init_interactive_hint = 0;
if (get_scaling_governor(governor, sizeof(governor)) == -1) {
ALOGE("Can't obtain scaling governor.");
return HINT_NONE;
}
if (!on) {
/* Display off */
if (is_interactive_governor(governor)) {
int resource_values[] = {INT_OP_CLUSTER0_TIMER_RATE, BIG_LITTLE_TR_MS_40};
perform_hint_action(DISPLAY_STATE_HINT_ID, resource_values,
ARRAY_SIZE(resource_values));
}
} else {
/* Display on */
if (is_interactive_governor(governor)) {
undo_hint_action(DISPLAY_STATE_HINT_ID);
}
}
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;
}
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