FreeCalypso > hg > freecalypso-sw
view rvinterf/lowlevel/rvtdump.c @ 992:a7b0b426f9ca
target-utils: boot ROM UART autodetection revamped
The new implementation should work with both the familiar Calypso C035
boot ROM version found in our regular targets as well as the older
Calypso F741979B version found on the vintage D-Sample board.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Wed, 30 Dec 2015 21:28:41 +0000 |
parents | 0d7cc054ef72 |
children | 658fe6f1880f |
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/* * This program reads bytes from a serial port, parses them assuming * TI's RVT MUX format, and prints every decoded packet. */ #include <sys/types.h> #include <sys/errno.h> #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <time.h> #include "../include/pktmux.h" extern int target_fd; extern char *baudrate_name; extern u_char rxpkt[]; extern size_t rxpkt_len; char *logfname; FILE *logF; time_t logtime; int background; int no_output; /* for output.c */ main(argc, argv) char **argv; { extern char *optarg; extern int optind; int c; fd_set fds; while ((c = getopt(argc, argv, "bB:d:l:")) != EOF) switch (c) { case 'b': background++; no_output++; /* for output.c */ continue; case 'B': baudrate_name = optarg; continue; case 'd': target_fd = atoi(optarg); continue; case 'l': logfname = optarg; continue; case '?': default: usage: fprintf(stderr, "usage: %s [options] ttyport\n", argv[0]); exit(1); } if (background && !logfname) { fprintf(stderr, "%s: -b is meaningless without -l\n", argv[0]); exit(1); } if (target_fd <= 0) { if (argc - optind != 1) goto usage; open_target_serial(argv[optind]); } set_serial_nonblock(0); setlinebuf(stdout); if (logfname) { logF = fopen(logfname, "w"); if (!logF) { perror(logfname); exit(1); } setlinebuf(logF); fprintf(logF, "*** Log of decoded RVT output ***\n"); } if (background) { c = fork(); if (c < 0) { perror("fork"); exit(1); } if (c) { printf("rvtdump forked into background (pid %d)\n", c); exit(0); } } for (;;) { FD_ZERO(&fds); FD_SET(target_fd, &fds); c = select(target_fd+1, &fds, 0, 0, 0); time(&logtime); if (c < 0) { if (errno == EINTR) continue; perror("select"); exit(1); } if (FD_ISSET(target_fd, &fds)) process_serial_rx(); } } handle_rx_packet() { switch (rxpkt[0]) { case RVT_RV_HEADER: if (rxpkt_len < 6) goto unknown; print_rv_trace(); return; case RVT_L1_HEADER: print_l1_trace(); return; case RVT_L23_HEADER: print_g23_trace(); return; case RVT_TM_HEADER: print_tm_output_raw(); return; case RVT_AT_HEADER: print_ati_output(); return; case RVT_EXTUI_HEADER: if (rxpkt_len < 5 || !(rxpkt_len & 1)) goto unknown; report_extui_packet(); return; case '*': print_fc_lld_msg(); return; default: unknown: print_unknown_packet(); } }