FreeCalypso > hg > fc-magnetite
view helpers/mokosrec2bin.c @ 638:cab2f315827e
FFS dev.c: added Spansion PL032J to the "generic" table
With the discovery of first GTM900 and then Tango, it now appears that
Openmoko was not the only manuf after all who kept TI's TCS211 firmware
largely intact (as opposed to changing it beyond all recognition like
Compal, Chi-Mei and BenQ did), thus we are now getting new "alien" targets
on which we reuse the original manuf's FFS with IMEI and RF calibration
tables as if it were native. On these targets we use the original
device table for FFS, even though we previously thought that it would
never apply to any target other than dsample, leonardo and gtamodem.
We have previously added Samsung K5L33xxCAM (a new kind of multi-ID device)
to the generic table to support its use in Huawei GTM900-B modules; now
we got news that some slightly older GTM900-B specimen used S71PL032J
instead, so we are now adding PL032J as well.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 30 Jan 2020 17:45:48 +0000 |
parents | a490b0466fed |
children | c6deddb5e91d |
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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 = 0; 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(); } } }