1/* ----------------------------------------------------------------------- * 2 * 3 * Copyright 2004-2008 H. Peter Anvin - All Rights Reserved 4 * 5 * Permission is hereby granted, free of charge, to any person 6 * obtaining a copy of this software and associated documentation 7 * files (the "Software"), to deal in the Software without 8 * restriction, including without limitation the rights to use, 9 * copy, modify, merge, publish, distribute, sublicense, and/or 10 * sell copies of the Software, and to permit persons to whom 11 * the Software is furnished to do so, subject to the following 12 * conditions: 13 * 14 * The above copyright notice and this permission notice shall 15 * be included in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, 18 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES 19 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND 20 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT 21 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, 22 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 23 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 24 * OTHER DEALINGS IN THE SOFTWARE. 25 * 26 * ----------------------------------------------------------------------- */ 27 28/* 29 * ansiraw.c 30 * 31 * Configures the console for ANSI output in raw mode; versions 32 * for COM32 and Linux support. 33 */ 34 35#ifdef __COM32__ 36 37#include <stdio.h> 38#include <unistd.h> 39#include <console.h> 40 41void console_ansi_raw(void) 42{ 43 openconsole(&dev_rawcon_r, &dev_ansiserial_w); 44} 45 46#else 47 48#include <stdio.h> 49#include <termios.h> 50#include <unistd.h> 51 52static struct termios original_termios_settings; 53 54static void __attribute__ ((constructor)) console_init(void) 55{ 56 tcgetattr(0, &original_termios_settings); 57} 58 59static void __attribute__ ((destructor)) console_cleanup(void) 60{ 61 tcsetattr(0, TCSANOW, &original_termios_settings); 62} 63 64void console_ansi_raw(void) 65{ 66 struct termios tio; 67 68 /* Disable stdio buffering */ 69 setbuf(stdin, NULL); 70 setbuf(stdout, NULL); 71 setbuf(stderr, NULL); 72 73 /* Set the termios flag so we behave the same as libcom32 */ 74 tcgetattr(0, &tio); 75 tio.c_iflag &= ~ICRNL; 76 tio.c_iflag |= IGNCR; 77 tio.c_lflag &= ~(ISIG | ICANON | ECHO); 78 if (!tio.c_oflag & OPOST) 79 tio.c_oflag = 0; 80 tio.c_oflag |= OPOST | ONLCR; 81 tio.c_cc[VMIN] = 0; 82 tio.c_cc[VTIME] = 1; /* Don't 100% busy-wait in Linux */ 83 tcsetattr(0, TCSAFLUSH, &tio); 84} 85 86int raw_read(int fd, void *buf, size_t count) 87{ 88 struct termios tio, rtio; 89 int rv; 90 91 tcgetattr(fd, &tio); 92 93 cfmakeraw(&rtio); 94 tcsetattr(fd, 0, &rtio); 95 96 rv = read(fd, buf, count); 97 98 /* Restore settings */ 99 tcsetattr(fd, 0, &tio); 100 101 return rv; 102} 103 104#endif 105