| /* |
| * Copyright (c) 2016-2017, 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 <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" |
| #include "powerhintparser.h" |
| |
| #define CHECK_HANDLE(x) ((x)>0) |
| #define NUM_PERF_MODES 3 |
| |
| typedef enum { |
| NORMAL_MODE = 0, |
| SUSTAINED_MODE = 1, |
| VR_MODE = 2, |
| VR_SUSTAINED_MODE = (SUSTAINED_MODE|VR_MODE), |
| INVALID_MODE = 0xFF |
| }perf_mode_type_t; |
| |
| typedef struct perf_mode { |
| perf_mode_type_t type; |
| int perf_hint_id; |
| }perf_mode_t; |
| |
| perf_mode_t perf_modes[NUM_PERF_MODES] = { { SUSTAINED_MODE, SUSTAINED_PERF_HINT }, |
| { VR_MODE, VR_MODE_HINT }, |
| { VR_SUSTAINED_MODE, VR_MODE_SUSTAINED_PERF_HINT } }; |
| |
| static pthread_mutex_t perf_mode_switch_lock = PTHREAD_MUTEX_INITIALIZER; |
| static int current_mode = NORMAL_MODE; |
| |
| static inline int get_perfd_hint_id(perf_mode_type_t type) { |
| int i; |
| for(i=0; i<NUM_PERF_MODES; i++) { |
| if (perf_modes[i].type == type) { |
| ALOGD("Hint id is 0x%x for mode 0x%x", perf_modes[i].perf_hint_id, type); |
| return perf_modes[i].perf_hint_id; |
| } |
| } |
| ALOGD("Couldn't find the hint for mode 0x%x", type); |
| return 0; |
| } |
| |
| static int switch_mode(perf_mode_type_t mode) { |
| |
| int hint_id = 0; |
| static int perfd_mode_handle = -1; |
| |
| // release existing mode if any |
| if (CHECK_HANDLE(perfd_mode_handle)) { |
| ALOGD("Releasing handle 0x%x", perfd_mode_handle); |
| release_request(perfd_mode_handle); |
| perfd_mode_handle = -1; |
| } |
| // switch to a perf mode |
| hint_id = get_perfd_hint_id(mode); |
| if(hint_id != 0) { |
| perfd_mode_handle = perf_hint_enable(hint_id, 0); |
| if (!CHECK_HANDLE(perfd_mode_handle)) { |
| ALOGE("Failed perf_hint_interaction for mode: 0x%x", mode); |
| return -1; |
| } |
| ALOGD("Acquired handle 0x%x", perfd_mode_handle); |
| } |
| return 0; |
| } |
| |
| static int process_perf_hint(void *data, perf_mode_type_t mode) { |
| |
| pthread_mutex_lock(&perf_mode_switch_lock); |
| |
| // enable |
| if (data){ |
| ALOGI("Enable request for mode: 0x%x", mode); |
| // check if mode is current mode |
| if ( current_mode & mode ) { |
| pthread_mutex_unlock(&perf_mode_switch_lock); |
| ALOGD("Mode 0x%x already enabled", mode); |
| return HINT_HANDLED; |
| } |
| // enable requested mode |
| if ( 0 != switch_mode(current_mode | mode)) { |
| pthread_mutex_unlock(&perf_mode_switch_lock); |
| ALOGE("Couldn't enable mode 0x%x", mode); |
| return HINT_NONE; |
| } |
| current_mode |= mode; |
| ALOGI("Current mode is 0x%x", current_mode); |
| // disable |
| } else { |
| ALOGI("Disable request for mode: 0x%x", mode); |
| // check if mode is enabled |
| if ( !(current_mode & mode) ) { |
| pthread_mutex_unlock(&perf_mode_switch_lock); |
| ALOGD("Mode 0x%x already disabled", mode); |
| return HINT_HANDLED; |
| } |
| //disable requested mode |
| if ( 0 != switch_mode(current_mode & ~mode)) { |
| pthread_mutex_unlock(&perf_mode_switch_lock); |
| ALOGE("Couldn't disable mode 0x%x", mode); |
| return HINT_NONE; |
| } |
| current_mode &= ~mode; |
| ALOGI("Current mode is 0x%x", current_mode); |
| } |
| |
| pthread_mutex_unlock(&perf_mode_switch_lock); |
| return HINT_HANDLED; |
| } |
| |
| static int process_video_encode_hint(void *metadata) |
| { |
| char governor[80]; |
| struct video_encode_metadata_t video_encode_metadata; |
| static int video_encode_handle = 0; |
| |
| 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; |
| |
| 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_interactive_governor(governor)) { |
| video_encode_handle = perf_hint_enable( |
| VIDEO_ENCODE_HINT, 0); |
| return HINT_HANDLED; |
| } |
| } else if (video_encode_metadata.state == 0) { |
| if (is_interactive_governor(governor)) { |
| release_request(video_encode_handle); |
| ALOGI("Video Encode hint stop"); |
| return HINT_HANDLED; |
| } |
| } |
| return HINT_NONE; |
| } |
| |
| int power_hint_override(struct power_module *module, 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; |
| case POWER_HINT_SUSTAINED_PERFORMANCE: |
| ret_val = process_perf_hint(data, SUSTAINED_MODE); |
| break; |
| case POWER_HINT_VR_MODE: |
| ret_val = process_perf_hint(data, VR_MODE); |
| break; |
| case POWER_HINT_INTERACTION: |
| pthread_mutex_lock(&perf_mode_switch_lock); |
| if (current_mode != NORMAL_MODE) { |
| ret_val = HINT_HANDLED; |
| } |
| pthread_mutex_unlock(&perf_mode_switch_lock); |
| break; |
| default: |
| break; |
| } |
| return ret_val; |
| } |
| |
| int set_interactive_override(struct power_module *module, int on) |
| { |
| return HINT_HANDLED; /* Don't excecute this code path, not in use */ |
| } |