1 /* 2 * Copyright (c) 2012-2013,2015-2017, The Linux Foundation. All rights reserved. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <cutils/properties.h> 31 32 int sysfs_read(char *path, char *s, int num_bytes); 33 int sysfs_write(char *path, char *s); 34 int get_scaling_governor(char governor[], int size); 35 int get_scaling_governor_check_cores(char governor[], int size,int core_num); 36 int is_interactive_governor(char*); 37 38 void vote_ondemand_io_busy_off(); 39 void unvote_ondemand_io_busy_off(); 40 void vote_ondemand_sdf_low(); 41 void unvote_ondemand_sdf_low(); 42 void perform_hint_action(int hint_id, int resource_values[], 43 int num_resources); 44 void undo_hint_action(int hint_id); 45 void release_request(int lock_handle); 46 int interaction_with_handle(int lock_handle, int duration, int num_args, int opt_list[]); 47 int perf_hint_enable(int hint_id, int duration); 48