| /* |
| * Copyright (c) 2015, 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> |
| |
| #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" |
| |
| #define MIN_FREQ_CPU0_DISP_OFF 400000 |
| #define MIN_FREQ_CPU0_DISP_ON 960000 |
| |
| char scaling_min_freq[4][80] ={ |
| "sys/devices/system/cpu/cpu0/cpufreq/scaling_min_freq", |
| "sys/devices/system/cpu/cpu1/cpufreq/scaling_min_freq", |
| "sys/devices/system/cpu/cpu2/cpufreq/scaling_min_freq", |
| "sys/devices/system/cpu/cpu3/cpufreq/scaling_min_freq" |
| }; |
| |
| static int saved_dcvs_cpu0_slack_max = -1; |
| static int saved_dcvs_cpu0_slack_min = -1; |
| static int saved_mpdecision_slack_max = -1; |
| static int saved_mpdecision_slack_min = -1; |
| static int saved_interactive_mode = -1; |
| static int slack_node_rw_failed = 0; |
| static int display_hint_sent; |
| int display_boost; |
| |
| static int is_target_8916() /* Returns value=8916 if target is 8916 else value 0 */ |
| { |
| int fd; |
| int is_target_8916=0; |
| char buf[10] = {0}; |
| |
| fd = open("/sys/devices/soc0/soc_id", O_RDONLY); |
| if (fd >= 0) { |
| if (read(fd, buf, sizeof(buf) - 1) == -1) { |
| ALOGW("Unable to read soc_id"); |
| is_target_8916 = 0; |
| } else { |
| int soc_id = atoi(buf); |
| if (soc_id == 206 || (soc_id >= 247 && soc_id <= 250)) { |
| is_target_8916 = 8916; /* Above SOCID for 8916 */ |
| } |
| } |
| } |
| close(fd); |
| return is_target_8916; |
| } |
| |
| int power_hint_override(power_hint_t hint, void *data) |
| { |
| |
| switch(hint) { |
| case POWER_HINT_VSYNC: |
| break; |
| case POWER_HINT_INTERACTION: |
| { |
| int resources[] = {0x702, 0x20F, 0x30F}; |
| int duration = 3000; |
| |
| interaction(duration, sizeof(resources)/sizeof(resources[0]), resources); |
| } |
| return HINT_HANDLED; |
| case POWER_HINT_VIDEO_ENCODE: /* Do nothing for encode case */ |
| return HINT_HANDLED; |
| case POWER_HINT_VIDEO_DECODE: /*Do nothing for encode case */ |
| return HINT_HANDLED; |
| default: |
| return HINT_HANDLED; |
| } |
| return HINT_NONE; |
| } |
| |
| int set_interactive_override(int on) |
| { |
| char governor[80]; |
| char tmp_str[NODE_MAX]; |
| struct video_encode_metadata_t video_encode_metadata; |
| int rc; |
| |
| ALOGI("Got set_interactive hint"); |
| if (get_scaling_governor_check_cores(governor, sizeof(governor),CPU0) == -1) { |
| if (get_scaling_governor_check_cores(governor, sizeof(governor),CPU1) == -1) { |
| if (get_scaling_governor_check_cores(governor, sizeof(governor),CPU2) == -1) { |
| if (get_scaling_governor_check_cores(governor, sizeof(governor),CPU3) == -1) { |
| ALOGE("Can't obtain scaling governor."); |
| return HINT_HANDLED; |
| } |
| } |
| } |
| } |
| |
| if (!on) { |
| /* Display off. */ |
| switch(is_target_8916()) { |
| |
| case 8916: |
| { |
| if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) && |
| (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) { |
| int resource_values[] = {TR_MS_50, THREAD_MIGRATION_SYNC_OFF}; |
| |
| if (!display_hint_sent) { |
| perform_hint_action(DISPLAY_STATE_HINT_ID, |
| resource_values, sizeof(resource_values)/sizeof(resource_values[0])); |
| display_hint_sent = 1; |
| } |
| } /* Perf time rate set for 8916 target*/ |
| } /* End of Switch case for 8916 */ |
| break ; |
| |
| default: |
| { |
| if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) && |
| (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) { |
| int resource_values[] = {TR_MS_CPU0_50,TR_MS_CPU4_50, THREAD_MIGRATION_SYNC_OFF}; |
| |
| /* Set CPU0 MIN FREQ to 400Mhz avoid extra peak power |
| impact in volume key press */ |
| snprintf(tmp_str, NODE_MAX, "%d", MIN_FREQ_CPU0_DISP_OFF); |
| if (sysfs_write(scaling_min_freq[0], tmp_str) != 0) { |
| if (sysfs_write(scaling_min_freq[1], tmp_str) != 0) { |
| if (sysfs_write(scaling_min_freq[2], tmp_str) != 0) { |
| if (sysfs_write(scaling_min_freq[3], tmp_str) != 0) { |
| if(!slack_node_rw_failed) { |
| ALOGE("Failed to write to %s",SCALING_MIN_FREQ ); |
| } |
| rc = 1; |
| } |
| } |
| } |
| } |
| |
| if (!display_hint_sent) { |
| perform_hint_action(DISPLAY_STATE_HINT_ID, |
| resource_values, sizeof(resource_values)/sizeof(resource_values[0])); |
| display_hint_sent = 1; |
| } |
| } /* Perf time rate set for CORE0,CORE4 8939 target*/ |
| }/* End of Switch case for 8939 */ |
| break ; |
| } |
| |
| } else { |
| /* Display on. */ |
| switch(is_target_8916()){ |
| case 8916: |
| { |
| if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) && |
| (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) { |
| undo_hint_action(DISPLAY_STATE_HINT_ID); |
| display_hint_sent = 0; |
| } |
| } |
| break ; |
| default : |
| { |
| |
| if ((strncmp(governor, INTERACTIVE_GOVERNOR, strlen(INTERACTIVE_GOVERNOR)) == 0) && |
| (strlen(governor) == strlen(INTERACTIVE_GOVERNOR))) { |
| |
| /* Recovering MIN_FREQ in display ON case */ |
| snprintf(tmp_str, NODE_MAX, "%d", MIN_FREQ_CPU0_DISP_ON); |
| if (sysfs_write(scaling_min_freq[0], tmp_str) != 0) { |
| if (sysfs_write(scaling_min_freq[1], tmp_str) != 0) { |
| if (sysfs_write(scaling_min_freq[2], tmp_str) != 0) { |
| if (sysfs_write(scaling_min_freq[3], tmp_str) != 0) { |
| if(!slack_node_rw_failed) { |
| ALOGE("Failed to write to %s",SCALING_MIN_FREQ ); |
| } |
| rc = 1; |
| } |
| } |
| } |
| } |
| undo_hint_action(DISPLAY_STATE_HINT_ID); |
| display_hint_sent = 0; |
| } |
| |
| } |
| break ; |
| } /* End of check condition during the DISPLAY ON case */ |
| } |
| saved_interactive_mode = !!on; |
| return HINT_HANDLED; |
| } |
| |