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https://github.com/Atmosphere-NX/Atmosphere.git
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82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (c) 2018 CTCaer
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* Copyright (c) 2018-2020 Atmosphère-NX
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdint.h>
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#include "btn.h"
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#include "i2c.h"
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#include "gpio.h"
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#include "timers.h"
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uint32_t btn_read()
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{
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uint32_t res = 0;
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if (!gpio_read(GPIO_BUTTON_VOL_DOWN))
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res |= BTN_VOL_DOWN;
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if (!gpio_read(GPIO_BUTTON_VOL_UP))
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res |= BTN_VOL_UP;
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uint32_t val = 0;
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if (i2c_query(I2C_5, MAX77620_PWR_I2C_ADDR, 0x15, &val, 1))
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{
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if (val & 0x4)
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res |= BTN_POWER;
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}
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return res;
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}
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uint32_t btn_wait()
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{
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uint32_t res = 0, btn = btn_read();
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int pwr = 0;
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if (btn & BTN_POWER)
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{
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pwr = 1;
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btn &= ~BTN_POWER;
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}
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do
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{
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res = btn_read();
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if (!(res & BTN_POWER) && pwr)
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pwr = 0;
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else if (pwr)
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res &= ~BTN_POWER;
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} while (btn == res);
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return res;
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}
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uint32_t btn_wait_timeout(uint32_t time_ms, uint32_t mask)
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{
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uint32_t timeout = get_time_ms() + time_ms;
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uint32_t res = btn_read() & mask;
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do
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{
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if (!(res & mask))
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res = btn_read() & mask;
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} while (get_time_ms() < timeout);
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return res;
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} |