| 1 | // ========== Copyright Header Begin ========================================== |
| 2 | // |
| 3 | // OpenSPARC T2 Processor File: console.cc |
| 4 | // Copyright (c) 2006 Sun Microsystems, Inc. All Rights Reserved. |
| 5 | // DO NOT ALTER OR REMOVE COPYRIGHT NOTICES. |
| 6 | // |
| 7 | // The above named program is free software; you can redistribute it and/or |
| 8 | // modify it under the terms of the GNU General Public |
| 9 | // License version 2 as published by the Free Software Foundation. |
| 10 | // |
| 11 | // The above named program is distributed in the hope that it will be |
| 12 | // useful, but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | // General Public License for more details. |
| 15 | // |
| 16 | // You should have received a copy of the GNU General Public |
| 17 | // License along with this work; if not, write to the Free Software |
| 18 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA. |
| 19 | // |
| 20 | // ========== Copyright Header End ============================================ |
| 21 | #include <fcntl.h> |
| 22 | #include <termio.h> |
| 23 | #include "console.h" |
| 24 | |
| 25 | |
| 26 | bool console::get_pty(char **name, int *sfd, int *mfd){ |
| 27 | if ((*mfd = open("/dev/ptmx", O_RDWR|O_NDELAY)) == -1) { |
| 28 | fprintf(stderr,"get_pty: Cannot find a pseudo tty.\n"); |
| 29 | return false; |
| 30 | } |
| 31 | |
| 32 | if (grantpt(*mfd) < 0) { |
| 33 | fprintf(stderr,"get_pty: Could not grant access to slave pseudo tty\n"); |
| 34 | perror("grantpt"); |
| 35 | close(*mfd); |
| 36 | return false; |
| 37 | } |
| 38 | |
| 39 | if (unlockpt(*mfd) < 0) { |
| 40 | fprintf(stderr,"get_pty: Unable to unlock pseudo tty.\n"); |
| 41 | perror("unlockpt"); |
| 42 | close(*mfd); |
| 43 | return false; |
| 44 | } |
| 45 | |
| 46 | *name = strdup(ptsname(*mfd)); |
| 47 | *sfd = open(*name, O_RDWR | O_NOCTTY); |
| 48 | |
| 49 | if (*sfd < 0) { |
| 50 | fprintf(stderr,"get_pty: Unable to open slave side for %d\n", *mfd); |
| 51 | close(*mfd); |
| 52 | return false; |
| 53 | } |
| 54 | |
| 55 | if (ioctl(*sfd, I_PUSH, "ptem") < 0) { |
| 56 | fprintf(stderr,"get_pty: Ioctl I_PUSH ptem failed\n"); |
| 57 | perror("ioctl i_push ptem"); |
| 58 | close(*mfd); |
| 59 | return false; |
| 60 | } |
| 61 | |
| 62 | if (ioctl(*sfd, I_PUSH, "ldterm") < 0) { |
| 63 | fprintf(stderr,"serial: Ioctl I_PUSH ldterm failed\n"); |
| 64 | perror("ioctl i_push ldterm"); |
| 65 | close(*mfd); |
| 66 | return false; |
| 67 | } |
| 68 | |
| 69 | chmod(*name,S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH); |
| 70 | |
| 71 | struct termio tty; |
| 72 | |
| 73 | ioctl(*sfd, TCGETA, &tty); |
| 74 | tty.c_lflag &= ~(ICANON|ECHO|ECHOE|ECHOK|ECHONL); |
| 75 | tty.c_cc[VMIN] = 1; |
| 76 | tty.c_cc[VTIME] = 0; |
| 77 | ioctl(*sfd, TCSETA, &tty); |
| 78 | |
| 79 | return true; |
| 80 | } |
| 81 | |
| 82 | void console::term_read_ports(fd_set readfds){ |
| 83 | unsigned char buf[256]; |
| 84 | |
| 85 | for(termMapIter = termMap.begin(); termMapIter!= termMap.end(); termMapIter++){ |
| 86 | if (FD_ISSET(termMapIter->second->mport_fd, &readfds)) { |
| 87 | int nbytes; |
| 88 | unsigned char ch; |
| 89 | int index = 0; |
| 90 | |
| 91 | while ((nbytes = read(termMapIter->second->mport_fd, &ch, 1)) == 1){ |
| 92 | buf[index++] = ch; |
| 93 | buf[index] = 0; |
| 94 | termMapIter->second->cbFun(termMapIter->second->cbData, buf, termMapIter->first); |
| 95 | index = 0; |
| 96 | } |
| 97 | } |
| 98 | } |
| 99 | } |
| 100 | //return a unique port identifier and the tty name for tip connection in tty_name |
| 101 | int console::getTerminal(char * title, int numScrolLines, inputCallbk cbFun, void * cbData, char ** tty_name, bool pop_win){ |
| 102 | |
| 103 | console::title = strdup(title); |
| 104 | term_lines = numScrolLines; |
| 105 | |
| 106 | term * t = new term(); |
| 107 | int retVal; |
| 108 | if(!get_pty(&t->tty_name, &t->port_fd, &t->mport_fd)){ |
| 109 | delete t; |
| 110 | return -1; |
| 111 | } |
| 112 | t->cbFun = cbFun; |
| 113 | t->cbData = cbData; |
| 114 | |
| 115 | pthread_mutex_lock(&termMutex); |
| 116 | termMap[currentPortNum++] = t; |
| 117 | retVal = currentPortNum - 1; |
| 118 | pthread_mutex_unlock(&termMutex); |
| 119 | |
| 120 | if(pop_win) |
| 121 | t->pop_term(display, fn, bg, fg, title, numScrolLines, exec); |
| 122 | |
| 123 | *tty_name = strdup(t->tty_name); |
| 124 | return retVal; |
| 125 | } |
| 126 | |
| 127 | void console::term_select(){ |
| 128 | |
| 129 | fd_set readFd; |
| 130 | int n; |
| 131 | struct timeval tval; |
| 132 | //time out every 1 second, to check if additional consoles have been added. |
| 133 | tval.tv_sec = 1; |
| 134 | tval.tv_usec = 0; |
| 135 | |
| 136 | for(;;){ |
| 137 | FD_ZERO(&readFd); |
| 138 | |
| 139 | for(termMapIter = termMap.begin(); termMapIter!= termMap.end(); termMapIter++) |
| 140 | FD_SET(termMapIter->second->mport_fd, &readFd); |
| 141 | |
| 142 | n = select(FD_SETSIZE, &readFd, (fd_set *)0,(fd_set *)0, &tval); |
| 143 | |
| 144 | switch (n) { |
| 145 | case -1: /* error */ |
| 146 | break; |
| 147 | case 0: /* timeout */ |
| 148 | break; |
| 149 | default: /* input available */ |
| 150 | term_read_ports(readFd); |
| 151 | break; |
| 152 | } |
| 153 | } |
| 154 | |
| 155 | } |
| 156 | |
| 157 | |
| 158 | |
| 159 | void * callTermThread(void * arg){ |
| 160 | console * t = (console*)arg; |
| 161 | t->term_select(); |
| 162 | return (void*)0; |
| 163 | } |