1 /** 2 * 3 * \file 4 * 5 * \brief USART Serial driver functions. 6 * 7 * 8 * Copyright (c) 2010-2015 Atmel Corporation. All rights reserved. 9 * 10 * \asf_license_start 11 * 12 * \page License 13 * 14 * Redistribution and use in source and binary forms, with or without 15 * modification, are permitted provided that the following conditions are met: 16 * 17 * 1. Redistributions of source code must retain the above copyright notice, 18 * this list of conditions and the following disclaimer. 19 * 20 * 2. Redistributions in binary form must reproduce the above copyright notice, 21 * this list of conditions and the following disclaimer in the documentation 22 * and/or other materials provided with the distribution. 23 * 24 * 3. The name of Atmel may not be used to endorse or promote products derived 25 * from this software without specific prior written permission. 26 * 27 * 4. This software may only be redistributed and used in connection with an 28 * Atmel microcontroller product. 29 * 30 * THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED 31 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 32 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE 33 * EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR 34 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 35 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 36 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 37 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 38 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 39 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 40 * POSSIBILITY OF SUCH DAMAGE. 41 * 42 * \asf_license_stop 43 * 44 */ 45 /* 46 * Support and FAQ: visit <a href="http://www.atmel.com/design-support/">Atmel Support</a> 47 */ 48 #include "serial.h" 49 50 /** 51 * \brief Send a sequence of bytes to USART device 52 * 53 * \param usart Base address of the USART instance. 54 * \param data Data buffer to read 55 * \param len Length of data 56 * 57 */ 58 status_code_t usart_serial_write_packet(usart_if usart, const uint8_t *data, 59 size_t len) 60 { 61 while (len) { 62 usart_serial_putchar(usart, *data); 63 len--; 64 data++; 65 } 66 return STATUS_OK; 67 } 68 69 70 /** 71 * \brief Receive a sequence of bytes from USART device 72 * 73 * \param usart Base address of the USART instance. 74 * \param data Data buffer to write 75 * \param len Length of data 76 * 77 */ 78 status_code_t usart_serial_read_packet(usart_if usart, uint8_t *data, 79 size_t len) 80 { 81 while (len) { 82 usart_serial_getchar(usart, data); 83 len--; 84 data++; 85 } 86 return STATUS_OK; 87 } 88