| /** |
| * \file |
| * |
| * \brief STDIO redirection terminal |
| * |
| * Copyright (c) 2015-2018 Microchip Technology Inc. and its subsidiaries. |
| * |
| * \asf_license_start |
| * |
| * \page License |
| * |
| * Subject to your compliance with these terms, you may use Microchip |
| * software and any derivatives exclusively with Microchip products. |
| * It is your responsibility to comply with third party license terms applicable |
| * to your use of third party software (including open source software) that |
| * may accompany Microchip software. |
| * |
| * THIS SOFTWARE IS SUPPLIED BY MICROCHIP "AS IS". NO WARRANTIES, |
| * WHETHER EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, |
| * INCLUDING ANY IMPLIED WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, |
| * AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT WILL MICROCHIP BE |
| * LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE, INCIDENTAL OR CONSEQUENTIAL |
| * LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND WHATSOEVER RELATED TO THE |
| * SOFTWARE, HOWEVER CAUSED, EVEN IF MICROCHIP HAS BEEN ADVISED OF THE |
| * POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE FULLEST EXTENT |
| * ALLOWED BY LAW, MICROCHIP'S TOTAL LIABILITY ON ALL CLAIMS IN ANY WAY |
| * RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY, |
| * THAT YOU HAVE PAID DIRECTLY TO MICROCHIP FOR THIS SOFTWARE. |
| * |
| * \asf_license_stop |
| * |
| */ |
| |
| #include <stdio.h> |
| #include <stdio_io.h> |
| |
| /** IO descriptor for STDIO access. */ |
| static struct io_descriptor *stdio_io = NULL; |
| |
| void stdio_io_init(struct io_descriptor *io) |
| { |
| #if defined(__GNUC__) |
| /* Specify that stdout and stdin should not be buffered. */ |
| setbuf(stdout, NULL); |
| setbuf(stdin, NULL); |
| /* Note: Already the case in IAR's Normal DLIB default configuration |
| * and AVR GCC library: |
| * - printf() emits one character at a time. |
| * - getchar() requests only 1 byte to exit. |
| */ |
| #endif |
| stdio_io = io; |
| } |
| |
| void stdio_io_set_io(struct io_descriptor *io) |
| { |
| stdio_io = io; |
| } |
| |
| int32_t stdio_io_read(uint8_t *buf, const int32_t len) |
| { |
| if (stdio_io == NULL) { |
| return 0; |
| } |
| return io_read(stdio_io, buf, len); |
| } |
| |
| int32_t stdio_io_write(const uint8_t *buf, const int32_t len) |
| { |
| if (stdio_io == NULL) { |
| return 0; |
| } |
| return io_write(stdio_io, buf, len); |
| } |