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6b8887b5d8
Currently bpmp loses access to the relevant registers when secmon or exosphere is launched. This change provides support for all firmwares and properly sanitizes the display.
73 lines
1.6 KiB
C
73 lines
1.6 KiB
C
/*
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* Copyright (c) 2018 naehrwert
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* Copyright (C) 2018 CTCaer
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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 "btn.h"
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#include "../soc/i2c.h"
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#include "../soc/gpio.h"
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#include "../soc/t210.h"
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#include "util.h"
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u32 btn_read()
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{
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u32 res = 0;
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if (!gpio_read(GPIO_PORT_X, GPIO_PIN_7))
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res |= BTN_VOL_DOWN;
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if (!gpio_read(GPIO_PORT_X, GPIO_PIN_6))
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res |= BTN_VOL_UP;
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if (i2c_recv_byte(4, 0x3C, 0x15) & 0x4)
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res |= BTN_POWER;
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return res;
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}
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u32 btn_wait()
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{
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u32 res = 0, btn = btn_read();
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bool pwr = false;
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//Power button down, raise a filter.
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if (btn & BTN_POWER)
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{
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pwr = true;
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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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//Power button up, remove filter.
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if (!(res & BTN_POWER) && pwr)
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pwr = false;
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else if (pwr) //Power button still down.
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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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u32 btn_wait_timeout(u32 time_ms, u32 mask)
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{
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u32 timeout = get_tmr_ms() + time_ms;
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u32 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_tmr_ms() < timeout);
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return res;
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}
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