Files
Embedded-Hacking/drivers/0x01_uart/uart.c
T
Kevin Thomas 066c69f24b fix: remove duplicate docstrings from public functions in .c files
Public function docstrings belong exclusively in .h headers per
coding convention. Only static helper functions and static variables
retain docstrings in .c files. Removed 413 duplicate docstrings
across 185 files (15 CBM + 15 C SDK projects). All 30 projects
rebuild with zero errors.
2026-04-06 08:49:37 -04:00

68 lines
2.0 KiB
C

/**
* @file uart.c
* @brief Implementation of the hardware UART0 driver
* @author Kevin Thomas
* @date 2025
*
* MIT License
*
* Copyright (c) 2025 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "uart.h"
#include "pico/stdlib.h"
#include "hardware/uart.h"
#include "hardware/gpio.h"
/** @brief Hardware UART instance used by this driver */
#define UART_INST uart0
void uart_driver_init(uint32_t tx_pin, uint32_t rx_pin, uint32_t baud_rate) {
uart_init(UART_INST, baud_rate);
gpio_set_function(tx_pin, GPIO_FUNC_UART);
gpio_set_function(rx_pin, GPIO_FUNC_UART);
}
bool uart_driver_is_readable(void) {
return uart_is_readable(UART_INST);
}
char uart_driver_getchar(void) {
return (char)uart_getc(UART_INST);
}
void uart_driver_putchar(char c) {
uart_putc_raw(UART_INST, c);
}
void uart_driver_puts(const char *str) {
while (*str) {
uart_putc_raw(UART_INST, *str++);
}
}
char uart_driver_to_upper(char c) {
if (c >= 'a' && c <= 'z') {
return (char)(c - 32);
}
return c;
}