FreeCalypso > hg > fc-tourmaline
view helpers/mokosrec2bin.c @ 78:c632896652ba
mfw/ti1_key.c: properly initialize notified_keys array
The code in this ti1_key.c layer needs to call kpd_subscribe() and
kpd_define_key_notification() functions in order to register with the
KPD driver. The original code passed KPD_NB_PHYSICAL_KEYS in
nb_notified_keys - this constant is defined to 24 in kpd_cfg.h on all
platforms of interest to us - but it only filled the first 23 slots
in the notified_keys array, resulting in stack garbage being passed
to KPD API functions. The fix consists of initializing the last
missed array slot to KPD_KEY_RECORD, the key ID for the right side
button on the D-Sample handset.
On our current hw targets this "Record" button exists as the EXTRA
button on our Luna keypad board and as the camera button on the
Pirelli DP-L10. There is no support whatsoever for this button
in current BMI+MFW, we have no plans of doing anything with Pirelli's
camera button even if we do get our UI fw running on that phone,
and the Mother's dream of building our own FreeCalypso handset with
the same button arrangement as D-Sample (including the right side
button) is currently very nebulous - but let us nonetheless handle
the full set of buttons on the KPD to MFW interface, and let upper
layers weed out unsupported buttons.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 25 Oct 2020 23:41:01 +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(); } } }