235 lines
8.4 KiB
C
235 lines
8.4 KiB
C
/*
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* Copyright (c) 2015, The Linux Foundation. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met:
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* * * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials provided
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* with the distribution.
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* * Neither the name of The Linux Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
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* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
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* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#define LOG_NIDEBUG 0
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#include <errno.h>
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#include <string.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <fcntl.h>
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#include <dlfcn.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <stdbool.h>
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#define LOG_TAG "QCOM PowerHAL"
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#include <utils/Log.h>
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#include <hardware/hardware.h>
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#include <hardware/power.h>
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#include "utils.h"
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#include "metadata-defs.h"
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#include "hint-data.h"
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#include "performance.h"
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#include "power-common.h"
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pthread_mutex_t video_encode_lock = PTHREAD_MUTEX_INITIALIZER;
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uintptr_t video_encode_hint_counter = 0;
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bool video_encode_hint_should_enable = false;
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bool video_encode_hint_is_enabled = false;
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static int new_hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
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static int cur_hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
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static const time_t VIDEO_ENCODE_DELAY_SECONDS = 2;
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static const time_t VIDEO_ENCODE_DELAY_NSECONDS = 0;
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static void* video_encode_hint_function(void* arg) {
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struct timespec tv = {0};
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tv.tv_sec = VIDEO_ENCODE_DELAY_SECONDS;
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tv.tv_nsec = VIDEO_ENCODE_DELAY_NSECONDS;
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int nanosleep_ret = 0;
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uintptr_t expected_counter = (uintptr_t)arg;
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// delay the hint for two seconds
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// the hint hotplugs the large CPUs, so this prevents the large CPUs from
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// going offline until the camera has had time to startup
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TEMP_FAILURE_RETRY(nanosleep(&tv, &tv));
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pthread_mutex_lock(&video_encode_lock);
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// check to ensure we should still turn on hint from this particular thread
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// if should_enable is true but counter is different, another thread owns hint
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// if should_enable is false, we've already quit the camera
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if (video_encode_hint_should_enable == true && video_encode_hint_counter == expected_counter) {
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/* sched and cpufreq params
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* A57 - offlines
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* A53 - 4 cores online at 1.2GHz
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*/
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int resource_values[] = {0x150C, 0x160C, 0x170C, 0x180C, 0x3DFF};
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perform_hint_action(new_hint_id,
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resource_values, sizeof(resource_values)/sizeof(resource_values[0]));
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cur_hint_id = new_hint_id;
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video_encode_hint_is_enabled = true;
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video_encode_hint_should_enable = false;
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}
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pthread_mutex_unlock(&video_encode_lock);
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return NULL;
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}
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static int display_hint_sent;
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static int process_video_encode_hint(void *metadata)
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{
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char governor[80];
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struct video_encode_metadata_t video_encode_metadata;
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if (get_scaling_governor(governor, sizeof(governor)) == -1) {
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ALOGE("Can't obtain scaling governor.");
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return HINT_NONE;
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}
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/* Initialize encode metadata struct fields */
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memset(&video_encode_metadata, 0, sizeof(struct video_encode_metadata_t));
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video_encode_metadata.state = -1;
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video_encode_metadata.hint_id = DEFAULT_VIDEO_ENCODE_HINT_ID;
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if (metadata) {
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if (parse_video_encode_metadata((char *)metadata, &video_encode_metadata) ==
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-1) {
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ALOGE("Error occurred while parsing metadata.");
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return HINT_NONE;
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}
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} else {
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return HINT_NONE;
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}
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if (video_encode_metadata.state == 1) {
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if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
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(strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
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pthread_t video_encode_hint_thread;
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pthread_mutex_lock(&video_encode_lock);
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new_hint_id = video_encode_metadata.hint_id;
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if (video_encode_hint_counter < 65535) {
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video_encode_hint_counter++;
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} else {
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video_encode_hint_counter = 0;
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}
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// start new thread to launch hint
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video_encode_hint_should_enable = true;
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if (pthread_create(&video_encode_hint_thread, NULL, video_encode_hint_function, (void*)video_encode_hint_counter) != 0) {
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ALOGE("Error constructing hint thread");
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video_encode_hint_should_enable = false;
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pthread_mutex_unlock(&video_encode_lock);
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return HINT_NONE;
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}
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pthread_detach(video_encode_hint_thread);
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pthread_mutex_unlock(&video_encode_lock);
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return HINT_HANDLED;
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}
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} else if (video_encode_metadata.state == 0) {
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if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
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(strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
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pthread_mutex_lock(&video_encode_lock);
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video_encode_hint_should_enable = false;
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if (video_encode_hint_is_enabled == true) {
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undo_hint_action(cur_hint_id);
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video_encode_hint_is_enabled = false;
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}
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pthread_mutex_unlock(&video_encode_lock);
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return HINT_HANDLED;
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}
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}
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return HINT_NONE;
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}
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int power_hint_override(struct power_module *module, power_hint_t hint, void *data)
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{
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int ret_val = HINT_NONE;
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switch(hint) {
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case POWER_HINT_VIDEO_ENCODE:
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ret_val = process_video_encode_hint(data);
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break;
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default:
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break;
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}
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return ret_val;
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}
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/*
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* Contains chipset/target specific handling
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* for Sustained performance mode.
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*/
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void toggle_sustained_performance(bool request_enable)
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{
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static int handle_sustained_performance = 0;
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if (request_enable) {
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/*
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* Unplug all big cores
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* Set maximum GPU power level to 3
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* Set interactive timer rate to 40ms
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*/
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int resources[] = {0x41004000, 0x0, 0x41424000, 0x28, 0X42808000, 0x3};
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handle_sustained_performance = interaction_with_handle(
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handle_sustained_performance, 0,
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sizeof(resources) / sizeof(resources[0]), resources);
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} else {
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release_request(handle_sustained_performance);
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}
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}
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int set_interactive_override(struct power_module *module, int on)
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{
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char governor[80];
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if (get_scaling_governor(governor, sizeof(governor)) == -1) {
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ALOGE("Can't obtain scaling governor.");
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return HINT_NONE;
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}
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if (!on) {
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/* Display off */
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if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
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(strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
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int resource_values[] = {0x41004000, 0x0, 0x41410100, 0x64, 0x41410000, 0x64}; /* 4+0 core config in display off */
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if (!display_hint_sent) {
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perform_hint_action(DISPLAY_STATE_HINT_ID,
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resource_values, sizeof(resource_values)/sizeof(resource_values[0]));
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display_hint_sent = 1;
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return HINT_HANDLED;
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}
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}
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} else {
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/* Display on */
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if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) &&
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(strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) {
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undo_hint_action(DISPLAY_STATE_HINT_ID);
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display_hint_sent = 0;
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return HINT_HANDLED;
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}
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}
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return HINT_NONE;
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}
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