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trezor-firmware/core/embed/trezorhal/sbu.c
2019-06-17 20:28:29 +02:00

44 lines
1.5 KiB
C

/*
* This file is part of the Trezor project, https://trezor.io/
*
* Copyright (c) SatoshiLabs
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that 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 STM32_HAL_H
#include "sbu.h"
void sbu_init(void) {
GPIO_InitTypeDef GPIO_InitStructure;
// SBU1/PA2 SBU2/PA3
GPIO_InitStructure.Pin = GPIO_PIN_2 | GPIO_PIN_3;
GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStructure.Pull = GPIO_NOPULL;
GPIO_InitStructure.Speed = GPIO_SPEED_FREQ_VERY_HIGH;
HAL_GPIO_Init(GPIOA, &GPIO_InitStructure);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2, GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET);
}
void sbu_set(secbool sbu1, secbool sbu2) {
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_2,
sbu1 == sectrue ? GPIO_PIN_SET : GPIO_PIN_RESET);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3,
sbu2 == sectrue ? GPIO_PIN_SET : GPIO_PIN_RESET);
}