FreeCalypso > hg > fc-tourmaline
view helpers/mokosrec2bin.c @ 301:4bb5772a05a3
AT%SPVER: new command for setting custom speech version lists
The speech version list in the Bearer Capability IE tells the network
which speech codecs are supported by the MS, and in which order of
preference. The standard behaviour is to list all codecs that are
supported by the hw+fw platform, and the standard preference order
is newer over older, FR over HR. But sometimes it is desirable
(for network testing) to artificially restrict which codecs the test MS
will declare as supported, and/or to list them in some peculiar
non-standard order of preference. Add a new private AT command,
AT%SPVER, allowing the user to set and clear custom speech version
lists for the Bearer Capability IE composer in CC.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 21 May 2023 21:43:10 +0000 |
parents | 1fb47f5b597a |
children |
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/* * GSM device firmwares that are built with TI's TMS470 toolchain in TI's * canonical way come out in TI's *.m0 format produced by TI's hex470 tool. * TI's *.m0 is a variant of the classic S-record format from Motorola, * but the specific variant depends on the -memwidth and -romwidth options * with which the hex470 tool is run. * * In TI's canonical architecture (as opposed to Mot/Compal's heavily modified * version) this hex470 tool is run with -memwidth 16 -romwidth 16 options, * and the *.m0 file comes out in the format variant which we have nicknamed * "moko-style" after its most famous user. This variant is a byte-reversed * S-record format in that each 16-bit word is byte-reversed relative to the * native byte order of the ARM7 processor. (This strange byte order actually * makes some sense if one views the image as a long array of 16-bit hex * values; 16 bits is the width of the flash memory on Calypso GSM devices and * thus the natural unit size for flash programming.) * * The present mokosrec2bin utility converts these "moko-style" S-record files * to straight binary, a conversion that includes flipping the order of bytes. */ #include <sys/types.h> #include <stdio.h> #include <ctype.h> #include <string.h> #include <strings.h> #include <stdlib.h> char *infname; FILE *inf, *outf; u_char fillbyte; char srecbuf[80]; u_char srecbin[40]; int lineno, state; u_long lastaddr; u_char header[6] = {0x06, 0x00, 0x00, 'H', 'D', 'R'}; decode_hex_byte(s) char *s; { register int u, l; if (!isxdigit(s[0]) || !isxdigit(s[1])) return(-1); if (isdigit(s[0])) u = s[0] - '0'; else if (isupper(s[0])) u = s[0] - 'A' + 10; else u = s[0] - 'a' + 10; if (isdigit(s[1])) l = s[1] - '0'; else if (isupper(s[1])) l = s[1] - 'A' + 10; else l = s[1] - 'a' + 10; return((u << 4) | l); } srec2bin() { register int i, l, b; l = decode_hex_byte(srecbuf + 2); if (l < 1) { fprintf(stderr, "%s line %d: S-record length octet is bad\n", infname, lineno); exit(1); } srecbin[0] = l; if (l > 35) { fprintf(stderr, "%s line %d: S-record is longer than expected\n", infname, lineno); exit(1); } for (i = 1; i <= l; i++) { b = decode_hex_byte(srecbuf + i*2 + 2); if (b < 0) { fprintf(stderr, "%s line %d: hex decode error\n", infname, lineno); exit(1); } srecbin[i] = b; } return(0); } srec_cksum() { u_char accum; register int i, len; len = srecbin[0] + 1; accum = 0; for (i = 0; i < len; i++) accum += srecbin[i]; if (accum != 0xFF) { fprintf(stderr, "%s line %d: bad checksum\n", infname, lineno); exit(1); } return(0); } main(argc, argv) char **argv; { register int i; u_long curaddr; int datalen; if (argc < 3 || argc > 4) { usage: fprintf(stderr, "usage: %s input.m0 output.bin [fill-byte]\n", argv[0]); exit(1); } infname = argv[1]; inf = fopen(infname, "r"); if (!inf) { perror(infname); exit(1); } if (argc > 3) { i = decode_hex_byte(argv[3]); if (i >= 0) fillbyte = i; else goto usage; } else fillbyte = 0xFF; state = 0; for (lineno = 1; ; lineno++) { if (!fgets(srecbuf, sizeof srecbuf, inf)) { fprintf(stderr, "%s: premature EOF\n", infname); exit(1); } if (srecbuf[0] != 'S') { fprintf(stderr, "%s line %d: not an S-record\n", infname, lineno); exit(1); } switch (srecbuf[1]) { case '0': if (state == 0) break; else goto badtype; case '3': if (state == 0) goto badtype; else break; case '7': if (state == 2) break; else goto badtype; default: badtype: fprintf(stderr, "%s line %d: S-record type unexpected\n", infname, lineno); exit(1); } srec2bin(); srec_cksum(); if (state == 0) { if (bcmp(srecbin, header, 6)) { fprintf(stderr, "%s: expected header missing\n", infname); exit(1); } state = 1; continue; } switch (srecbuf[1]) { case '3': if (srecbin[0] < 6) { fprintf(stderr, "%s line %d: S3 record is too short\n", infname, lineno); exit(1); } curaddr = (srecbin[1] << 24) | (srecbin[2] << 16) | (srecbin[3] << 8) | srecbin[4]; if (curaddr & 1) { fprintf(stderr, "%s line %d: odd address\n", infname, lineno); exit(1); } datalen = srecbin[0] - 5; if (datalen & 1) { fprintf(stderr, "%s line %d: odd data length\n", infname, lineno); exit(1); } if (state < 2) { outf = fopen(argv[2], "w"); if (!outf) { perror(argv[2]); exit(1); } state = 2; lastaddr = 0; } if (curaddr < lastaddr) { fprintf(stderr, "%s line %d: address going backwards\n", infname, lineno); exit(1); } while (lastaddr < curaddr) { putc(fillbyte, outf); lastaddr++; } for (i = 0; i < datalen; i += 2) { putc(srecbin[i + 6], outf); putc(srecbin[i + 5], outf); } lastaddr = curaddr + datalen; continue; case '7': fclose(outf); exit(0); default: abort(); } } }