75 lines
2.4 KiB
C
75 lines
2.4 KiB
C
/*
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* This file is part of Cleanflight.
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*
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* Cleanflight is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Cleanflight is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for 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 Cleanflight. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <stdbool.h>
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#include <stdint.h>
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#include "platform.h"
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#include "drivers/gpio.h"
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#define MODE_OFFSET 0
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#define PUPD_OFFSET 2
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#define OUTPUT_OFFSET 4
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#define MODE_MASK ((1|2) << MODE_OFFSET)
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#define PUPD_MASK ((1|2) << PUPD_OFFSET)
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#define OUTPUT_MASK ((1|2) << OUTPUT_OFFSET)
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//#define GPIO_Speed_10MHz GPIO_Speed_Level_1 Fast Speed:10MHz
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//#define GPIO_Speed_2MHz GPIO_Speed_Level_2 Medium Speed:2MHz
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//#define GPIO_Speed_50MHz GPIO_Speed_Level_3 High Speed:50MHz
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void gpioInit(GPIO_TypeDef *gpio, gpio_config_t *config)
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{
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GPIO_InitTypeDef GPIO_InitStructure;
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uint32_t pinIndex;
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for (pinIndex = 0; pinIndex < 16; pinIndex++) {
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// are we doing this pin?
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uint32_t pinMask = (0x1 << pinIndex);
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if (config->pin & pinMask) {
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GPIO_InitStructure.GPIO_Pin = pinMask;
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GPIO_InitStructure.GPIO_Mode = (config->mode & MODE_MASK) >> MODE_OFFSET;
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GPIOSpeed_TypeDef speed = GPIO_Speed_10MHz;
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switch (config->speed) {
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case Speed_10MHz:
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speed = GPIO_Speed_Level_1;
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break;
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case Speed_2MHz:
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speed = GPIO_Speed_Level_2;
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break;
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case Speed_50MHz:
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speed = GPIO_Speed_Level_3;
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break;
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}
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GPIO_InitStructure.GPIO_Speed = speed;
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GPIO_InitStructure.GPIO_OType = (config->mode & OUTPUT_MASK) >> OUTPUT_OFFSET;
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GPIO_InitStructure.GPIO_PuPd = (config->mode & PUPD_MASK) >> PUPD_OFFSET;
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GPIO_Init(gpio, &GPIO_InitStructure);
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}
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}
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}
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void gpioExtiLineConfig(uint8_t portsrc, uint8_t pinsrc)
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{
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SYSCFG_EXTILineConfig(portsrc, pinsrc);
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}
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