FreeCalypso > hg > freecalypso-reveng
view mot931c/emu.c @ 283:f724d574cff3
compal/sym-fw-disasm: ULPD setup diffs analysed
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 14 Mar 2019 07:12:27 +0000 |
parents | 9082f3991fe5 |
children |
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#include <sys/types.h> #include <sys/file.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <strings.h> static int fd; static u_char verquery[13] = {0x02, 0x14, 0x41, 0x20, 0x20, 0x00, 0x00, 0x04, 0x00, 0x00, 0x00, 0x45, 0x02}; static u_char verquery_resp[10] = {0x41, 0x00, 0x04, 0x00, 0x00, 0x00, '8', '.', '8', '.'}; static u_char download_hdr[3] = {0x02, 0x14, 0x40}; static u_char download_resp[2] = {0x40, 0x00}; send_stx() { static u_char stx = 0x02; write(fd, &stx, 1); } send_rvtmux_byte(b) { u_char buf[2]; int l, o; buf[0] = 0x10; buf[1] = b; if (b == 0x02 || b == 0x10) { o = 0; l = 2; } else { o = 1; l = 1; } write(fd, buf + o, l); } send_etm_resp(data, datalen) u_char *data; { u_char csum; int i; printf("Responding with:"); send_stx(); send_rvtmux_byte(0x14); csum = 0; for (i = 0; i < datalen; i++) { printf(" %02X", data[i]); send_rvtmux_byte(data[i]); csum ^= data[i]; } send_rvtmux_byte(csum); send_stx(); putchar('\n'); } main(argc, argv) char **argv; { u_char buf[1024]; int cc, i; if (argc != 2) { fprintf(stderr, "usage: %s pty\n", argv[0]); exit(1); } fd = open(argv[1], O_RDWR); if (fd < 0) { perror(argv[1]); exit(1); } for (;;) { cc = read(fd, buf, sizeof buf); if (cc < 0) { perror("read error"); exit(1); } if (cc == 0) { fprintf(stderr, "read EOF\n"); exit(1); } printf("read %d bytes:", cc); for (i = 0; i < cc; i++) printf(" %02X", buf[i]); putchar('\n'); if (cc == sizeof(verquery) && !bcmp(buf, verquery, cc)) send_etm_resp(verquery_resp, sizeof verquery_resp); if (cc > 3 && !bcmp(buf, download_hdr, 3)) send_etm_resp(download_resp, sizeof download_resp); } }