Picklock_RCM/bdk/utils/btn.c

115 lines
2.4 KiB
C
Raw Normal View History

2019-03-05 00:05:42 +01:00
/*
* Copyright (c) 2018 naehrwert
2019-12-09 03:17:46 +01:00
* Copyright (c) 2018 CTCaer
2019-03-05 00:05:42 +01:00
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "btn.h"
2020-06-26 22:17:06 +02:00
#include <soc/i2c.h>
#include <soc/gpio.h>
#include <soc/t210.h>
#include <utils/util.h>
#include <power/max77620.h>
2019-03-05 00:05:42 +01:00
2019-04-18 18:47:34 +02:00
u8 btn_read()
2019-03-05 00:05:42 +01:00
{
2019-04-18 18:47:34 +02:00
u8 res = 0;
2019-03-05 00:05:42 +01:00
if (!gpio_read(GPIO_PORT_X, GPIO_PIN_7))
res |= BTN_VOL_DOWN;
if (!gpio_read(GPIO_PORT_X, GPIO_PIN_6))
res |= BTN_VOL_UP;
if (i2c_recv_byte(4, MAX77620_I2C_ADDR, MAX77620_REG_ONOFFSTAT) & 0x4)
2019-03-05 00:05:42 +01:00
res |= BTN_POWER;
return res;
}
2020-04-16 00:18:58 +02:00
u8 btn_read_vol()
{
u8 res = 0;
if (!gpio_read(GPIO_PORT_X, GPIO_PIN_7))
res |= BTN_VOL_DOWN;
if (!gpio_read(GPIO_PORT_X, GPIO_PIN_6))
res |= BTN_VOL_UP;
return res;
}
2019-04-18 18:47:34 +02:00
u8 btn_wait()
2019-03-05 00:05:42 +01:00
{
2019-04-18 18:47:34 +02:00
u8 res = 0, btn = btn_read();
2019-03-05 00:05:42 +01:00
bool pwr = false;
//Power button down, raise a filter.
if (btn & BTN_POWER)
{
pwr = true;
btn &= ~BTN_POWER;
}
do
{
res = btn_read();
//Power button up, remove filter.
if (!(res & BTN_POWER) && pwr)
pwr = false;
else if (pwr) //Power button still down.
res &= ~BTN_POWER;
} while (btn == res);
return res;
}
2019-04-18 18:47:34 +02:00
u8 btn_wait_timeout(u32 time_ms, u8 mask)
2020-06-26 22:17:06 +02:00
{
u32 timeout = get_tmr_ms() + time_ms;
u8 res = btn_read() & mask;
while (get_tmr_ms() < timeout)
{
if (res == mask)
break;
else
res = btn_read() & mask;
};
return res;
}
u8 btn_wait_timeout_single(u32 time_ms, u8 mask)
2019-03-05 00:05:42 +01:00
{
2019-12-09 03:17:46 +01:00
u8 single_button = mask & BTN_SINGLE;
mask &= ~BTN_SINGLE;
2019-03-05 00:05:42 +01:00
u32 timeout = get_tmr_ms() + time_ms;
2019-12-09 03:17:46 +01:00
u8 res = btn_read();
2019-03-05 00:05:42 +01:00
2019-04-18 18:47:34 +02:00
while (get_tmr_ms() < timeout)
2019-03-05 00:05:42 +01:00
{
2019-12-09 03:17:46 +01:00
if ((res & mask) == mask)
{
if (single_button && (res & ~mask)) // Undesired button detected.
res = btn_read();
else
return (res & mask);
}
2019-04-18 18:47:34 +02:00
else
2019-12-09 03:17:46 +01:00
res = btn_read();
2019-04-18 18:47:34 +02:00
};
2019-03-05 00:05:42 +01:00
2019-12-09 03:17:46 +01:00
// Timed out.
2020-04-16 00:18:58 +02:00
if (!single_button || !time_ms)
return (res & mask);
else
return 0; // Return no button press if single button requested.
2019-03-05 00:05:42 +01:00
}