75 lines
2.6 KiB
C
75 lines
2.6 KiB
C
/*
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* MIT License
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*
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* Copyright (c) 2020-2024 Joey Castillo
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in all
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* copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#include "watch_uart.h"
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#include "uart.h"
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#include "usb.h"
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#include <string.h>
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void watch_enable_uart(const uint16_t tx_pin, const uint16_t rx_pin, uint32_t baud) {
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uart_rxpo_t rxpo = UART_RXPO_NONE;
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if (rx_pin == HAL_GPIO_A1_pin()) {
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rxpo = UART_RXPO_3;
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HAL_GPIO_A1_in();
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HAL_GPIO_A1_pmuxen(HAL_GPIO_PMUX_SERCOM);
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} else if (rx_pin == HAL_GPIO_A2_pin()) {
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rxpo = UART_RXPO_0;
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HAL_GPIO_A2_in();
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HAL_GPIO_A2_pmuxen(HAL_GPIO_PMUX_SERCOM);
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} else if (rx_pin == HAL_GPIO_A3_pin()) {
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rxpo = UART_RXPO_1;
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HAL_GPIO_A3_in();
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HAL_GPIO_A3_pmuxen(HAL_GPIO_PMUX_SERCOM);
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} else if (rx_pin == HAL_GPIO_A4_pin()) {
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rxpo = UART_RXPO_2;
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HAL_GPIO_A4_in();
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HAL_GPIO_A4_pmuxen(HAL_GPIO_PMUX_SERCOM);
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}
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if (tx_pin == HAL_GPIO_A2_pin()) {
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uart_init_instance(3, UART_TXPO_0, rxpo, baud);
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HAL_GPIO_A2_pmuxen(HAL_GPIO_PMUX_SERCOM);
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} else if (tx_pin == HAL_GPIO_A4_pin()) {
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uart_init_instance(3, UART_TXPO_2, rxpo, baud);
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HAL_GPIO_A4_pmuxen(HAL_GPIO_PMUX_SERCOM);
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} else {
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uart_init_instance(3, UART_TXPO_NONE, rxpo, baud);
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}
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uart_enable_instance(3);
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}
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void watch_uart_puts(char *s) {
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uart_write_instance(3, s, strlen((const char *)s));
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}
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size_t watch_uart_gets(char *data, size_t max_length) {
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return uart_read_instance(3, data, max_length);
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}
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void irq_handler_sercom3(void);
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void irq_handler_sercom3(void) {
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uart_irq_handler(3);
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} |