125e97b0bf
* Enable dynamic number of input devices, needed for bluetooth support Change-Id: Ic2425834eb9b0fff298899ab45f3115ce1d95e91
305 lines
7.4 KiB
C
305 lines
7.4 KiB
C
/***************************************************************************
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* __________ __ ___
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2017 Marcin Bukat
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* Copyright (C) 2019 Roman Stolyarov
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include <poll.h>
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#include <errno.h>
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#include <unistd.h>
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#include <sys/types.h>
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#include <linux/input.h>
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#include <fcntl.h>
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#include <string.h>
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#include <stdlib.h>
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#include "sysfs.h"
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#include "button.h"
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#include "button-target.h"
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#include "panic.h"
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#include "kernel.h"
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static int key_enter_delay = 0;
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static int key_right_delay = 0;
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static int key_left_delay = 0;
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static int key_power_delay = 0;
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static int key_home_delay = 0;
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static int key_backspace_delay = 0;
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static int key_leftbrace_delay = 0;
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static int key_rightbrace_delay = 0;
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static int key_up_delay = 0;
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static int key_down_delay = 0;
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static int key_f12_delay = 0;
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#define NR_POLL_DESC 2
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static struct pollfd poll_fds[NR_POLL_DESC];
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#define DEF_DELAY 5
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static int button_map_on(int keycode)
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{
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switch(keycode)
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{
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case KEY_ENTER:
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key_enter_delay = DEF_DELAY;
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return BUTTON_PLAY;
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case KEY_F10:
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key_enter_delay = 0;
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return BUTTON_PLAY;
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case KEY_RIGHT:
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key_right_delay = DEF_DELAY;
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return BUTTON_VOL_DOWN;
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case KEY_F7:
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key_right_delay = 0;
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return BUTTON_VOL_DOWN;
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case KEY_LEFT:
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key_left_delay = DEF_DELAY;
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return BUTTON_VOL_UP;
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case KEY_F6:
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key_left_delay = 0;
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return BUTTON_VOL_UP;
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case KEY_POWER:
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key_power_delay = DEF_DELAY;
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return BUTTON_POWER;
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case KEY_F8:
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key_power_delay = 0;
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return BUTTON_POWER;
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case KEY_HOME:
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key_home_delay = DEF_DELAY;
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return BUTTON_OPTION;
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case KEY_F9:
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key_home_delay = 0;
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return BUTTON_OPTION;
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case KEY_BACKSPACE:
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key_backspace_delay = DEF_DELAY;
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return BUTTON_HOME;
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case KEY_NUMLOCK:
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key_backspace_delay = 0;
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return BUTTON_HOME;
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case KEY_LEFTBRACE:
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key_leftbrace_delay = DEF_DELAY;
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return BUTTON_PREV;
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case KEY_F5:
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key_leftbrace_delay = 0;
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return BUTTON_PREV;
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case KEY_RIGHTBRACE:
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key_rightbrace_delay = DEF_DELAY;
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return BUTTON_NEXT;
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case KEY_F4:
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key_rightbrace_delay = 0;
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return BUTTON_NEXT;
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case KEY_UP:
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if (!key_up_delay) key_up_delay = DEF_DELAY;
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return BUTTON_UP;
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case KEY_DOWN:
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if (!key_down_delay) key_down_delay = DEF_DELAY;
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return BUTTON_DOWN;
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case KEY_F12:
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key_f12_delay = DEF_DELAY;
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//return BUTTON_UNLOCK;
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return 0;
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default:
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return 0;
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}
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}
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static int button_map_off(int keycode)
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{
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switch(keycode)
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{
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case KEY_F10:
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return BUTTON_PLAY;
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case KEY_F7:
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return BUTTON_VOL_DOWN;
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case KEY_F6:
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return BUTTON_VOL_UP;
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case KEY_F8:
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return BUTTON_POWER;
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case KEY_F9:
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return BUTTON_OPTION;
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case KEY_NUMLOCK:
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return BUTTON_HOME;
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case KEY_F5:
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return BUTTON_PREV;
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case KEY_F4:
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return BUTTON_NEXT;
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default:
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return 0;
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}
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}
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static int button_map_timer(void)
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{
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int map = 0;
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if (key_enter_delay)
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{
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if (--key_enter_delay == 0) map |= BUTTON_PLAY;
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}
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if (key_right_delay)
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{
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if (--key_right_delay == 0) map |= BUTTON_VOL_DOWN;
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}
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if (key_left_delay)
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{
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if (--key_left_delay == 0) map |= BUTTON_VOL_UP;
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}
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if (key_power_delay)
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{
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if (--key_power_delay == 0) map |= BUTTON_POWER;
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}
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if (key_home_delay)
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{
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if (--key_home_delay == 0) map |= BUTTON_OPTION;
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}
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if (key_backspace_delay)
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{
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if (--key_backspace_delay == 0) map |= BUTTON_HOME;
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}
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if (key_leftbrace_delay)
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{
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if (--key_leftbrace_delay == 0) map |= BUTTON_PREV;
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}
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if (key_rightbrace_delay)
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{
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if (--key_rightbrace_delay == 0) map |= BUTTON_NEXT;
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}
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if (key_up_delay)
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{
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if (--key_up_delay == 0) map |= BUTTON_UP;
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}
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if (key_down_delay)
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{
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if (--key_down_delay == 0) map |= BUTTON_DOWN;
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}
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if (key_f12_delay)
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{
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if (--key_f12_delay == 0) map |= 0; //BUTTON_UNLOCK
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}
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return map;
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}
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void button_init_device(void)
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{
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const char * const input_devs[NR_POLL_DESC] = {
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"/dev/input/event0",
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"/dev/input/event1",
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};
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for(int i = 0; i < NR_POLL_DESC; i++)
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{
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int fd = open(input_devs[i], O_RDONLY | O_CLOEXEC);
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if(fd < 0)
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{
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panicf("Cannot open input device: %s\n", input_devs[i]);
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}
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poll_fds[i].fd = fd;
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poll_fds[i].events = POLLIN;
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poll_fds[i].revents = 0;
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}
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}
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int button_read_device(void)
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{
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static int button_bitmap = 0;
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static int map;
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struct input_event event;
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/* check if there are any events pending and process them */
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while(poll(poll_fds, NR_POLL_DESC, 0))
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{
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for(int i = 0; i < NR_POLL_DESC; i++)
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{
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/* read only if non-blocking */
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if(poll_fds[i].revents & POLLIN)
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{
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int size = read(poll_fds[i].fd, &event, sizeof(event));
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if(size == (int)sizeof(event))
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{
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if(event.type == EV_KEY)
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{
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int keycode = event.code;
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/* event.value == 1 means press
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* event.value == 0 means release
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*/
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bool press = event.value ? true : false;
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if(press)
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{
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map = button_map_on(keycode);
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if(map) button_bitmap |= map;
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}
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else
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{
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map = button_map_off(keycode);
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if(map) button_bitmap &= ~map;
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}
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}
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}
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}
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}
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}
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map = button_map_timer();
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if(map) button_bitmap &= ~map;
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return button_bitmap;
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}
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bool headphones_inserted(void)
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{
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int status = 0;
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const char * const sysfs_hs_switch = "/sys/class/misc/axp173/headset_state";
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sysfs_get_int(sysfs_hs_switch, &status);
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if (status) return true;
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return false;
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}
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void button_close_device(void)
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{
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/* close descriptors */
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for(int i = 0; i < NR_POLL_DESC; i++)
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{
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close(poll_fds[i].fd);
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}
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}
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