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/* SPDX-License-Identifier: BSD-2-Clause */
/*
* Copyright (C) 2020 embedded brains GmbH & Co. KG
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <bsp.h>
#include <rtems/bspIo.h>
#include <rtems/sysinit.h>
#include <stm32h7/hal.h>
static void stm32h7_output_char(char c)
{
stm32h7_uart_polled_write(&STM32H7_PRINTK_INSTANCE.device, c);
}
static void stm32h7_output_char_init(void)
{
UART_HandleTypeDef *uart;
uart = &STM32H7_PRINTK_INSTANCE.uart;
(void) HAL_UART_Init(uart);
(void) HAL_UARTEx_SetTxFifoThreshold(uart, UART_TXFIFO_THRESHOLD_1_8);
(void) HAL_UARTEx_SetRxFifoThreshold(uart, UART_RXFIFO_THRESHOLD_1_8);
(void) HAL_UARTEx_EnableFifoMode(uart);
BSP_output_char = stm32h7_output_char;
}
static void stm32h7_output_char_init_early(char c)
{
stm32h7_output_char_init();
stm32h7_output_char(c);
}
static int stm32h7_poll_char(void)
{
return stm32h7_uart_polled_read(&STM32H7_PRINTK_INSTANCE.device);
}
BSP_output_char_function_type BSP_output_char = stm32h7_output_char_init_early;
BSP_polling_getchar_function_type BSP_poll_char = stm32h7_poll_char;
RTEMS_SYSINIT_ITEM(
stm32h7_output_char_init,
RTEMS_SYSINIT_BSP_START,
RTEMS_SYSINIT_ORDER_LAST_BUT_5
);
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