rt-thread/bsp/samd21/sam_d2x_asflib/common/services/serial/usart_serial.c

/**
 *
 * \file
 *
 * \brief USART Serial driver functions.
 *
 *
 * Copyright (c) 2010-2015 Atmel Corporation. All rights reserved.
 *
 * \asf_license_start
 *
 * \page License
 *
 * 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.
 *
 * 3. The name of Atmel may not be used to endorse or promote products derived
 *    from this software without specific prior written permission.
 *
 * 4. This software may only be redistributed and used in connection with an
 *    Atmel microcontroller product.
 *
 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL 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.
 *
 * \asf_license_stop
 *
 */
/*
 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a>
 */
#include "serial.h"

/**
 * \brief Send a sequence of bytes to USART device
 *
 * \param usart  Base address of the USART instance.
 * \param data   Data buffer to read
 * \param len    Length of data
 *
 */
status_code_t usart_serial_write_packet(usart_if usart, const uint8_t *data,
		size_t len)
{
	while (len) {
		usart_serial_putchar(usart, *data);
		len--;
		data++;
	}
	return STATUS_OK;
}


/**
 * \brief Receive a sequence of bytes from USART device
 *
 * \param usart  Base address of the USART instance.
 * \param data   Data buffer to write
 * \param len    Length of data
 *
 */
status_code_t usart_serial_read_packet(usart_if usart, uint8_t *data,
		size_t len)
{
	while (len) {
		usart_serial_getchar(usart, data);
		len--;
		data++;
	}
	return STATUS_OK;
}