63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
#include <libopencm3/stm32/rcc.h>
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#include <libopencm3/stm32/gpio.h>
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#include <stdint.h>
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#include <stdio.h>
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#include "buttons.h"
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#define OPEN_RCC RCC_GPIOB
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#define OPEN_PORT GPIOB
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#define OPEN_BUTTON GPIO9
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#define CLOSE_RCC RCC_GPIOC
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#define CLOSE_PORT GPIOC
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#define CLOSE_BUTTON GPIO3
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void buttons_setup() {
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#define SETUP(BTN) \
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rcc_periph_clock_enable(BTN ## _RCC); \
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gpio_mode_setup(BTN ## _PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, BTN ## _BUTTON); \
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gpio_set_output_options(BTN ## _PORT, GPIO_OTYPE_OD, GPIO_OSPEED_2MHZ, BTN ## _BUTTON);
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SETUP(OPEN);
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SETUP(CLOSE);
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#undef SETUP
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buttons_release();
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}
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static uint32_t open_ticks = 0;
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static uint32_t close_ticks = 0;
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void buttons_open(uint32_t ticks) {
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gpio_clear(OPEN_PORT, OPEN_BUTTON);
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printf("Open %lu", ticks);
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open_ticks = ticks;
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}
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void buttons_close(uint32_t ticks) {
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gpio_clear(CLOSE_PORT, CLOSE_BUTTON);
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printf("Close %lu", ticks);
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close_ticks = ticks;
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}
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void buttons_release(void) {
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open_ticks = close_ticks = 0;
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printf("Release");
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gpio_set(OPEN_PORT, OPEN_BUTTON);
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gpio_set(CLOSE_PORT, CLOSE_BUTTON);
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}
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void buttons_tick(void) {
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if (open_ticks) {
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open_ticks--;
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if (!open_ticks) {
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gpio_set(OPEN_PORT, OPEN_BUTTON);
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printf("Release open");
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}
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}
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if (close_ticks) {
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close_ticks--;
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if (!close_ticks) {
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printf("Release close");
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gpio_set(CLOSE_PORT, CLOSE_BUTTON);
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}
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}
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}
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