FreeCalypso > hg > freecalypso-tools
view ffstools/tiaud/decomp.c @ 416:30f6d1c32c6f
doc/Flash-boot-defect article removed (no longer relevant)
This article is no longer relevant because the issue in question
only affected one (1) defective FCDEV3B board which was not
and never will be sold.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Fri, 26 Oct 2018 07:11:08 +0000 |
parents | 568e2a2b49c8 |
children | c458e33060bf |
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/* * This utility decompiles a binary /aud/*.cfg file read out of FFS * into our ASCII text representation. */ #include <sys/types.h> #include <sys/file.h> #include <sys/stat.h> #include <stdio.h> #include <stdint.h> #include <endian.h> #include <stdlib.h> #include <unistd.h> #include "binstruct.h" struct audio_cfg_bin bin; FILE *outf; read_bin_file(filename) char *filename; { int fd; struct stat st; fd = open(filename, O_RDONLY); if (fd < 0) { perror(filename); exit(1); } fstat(fd, &st); if (!S_ISREG(st.st_mode)) { fprintf(stderr, "%s is not a regular file\n", filename); exit(1); } if (st.st_size != sizeof(struct audio_cfg_bin)) { fprintf(stderr, "%s has the wrong length\n", filename); exit(1); } read(fd, &bin, sizeof bin); close(fd); } emit_fir(table) uint16_t *table; { int i; for (i = 0; i < 31; i++) { if ((i % 8) == 0) fprintf(outf, "\tfir %2d", i); fprintf(outf, " 0x%04X", le16toh(table[i])); if (i == 7 || i == 15 || i == 23 || i == 30) putc('\n', outf); } } emit_ascii() { int i; fprintf(outf, "voice-path %u\n", bin.voice_path); switch (bin.mic_mode) { case AUDIO_MICROPHONE_HANDHELD: fprintf(outf, "mic default {\n"); break; case AUDIO_MICROPHONE_HANDFREE: fprintf(outf, "mic aux {\n"); break; case AUDIO_MICROPHONE_HEADSET: fprintf(outf, "mic headset {\n"); break; default: fprintf(stderr, "error: unknown microphone mode 0x%02X\n", bin.mic_mode); exit(1); } fprintf(outf, "\tgain %d\n", bin.mic_bytes[0]); if (bin.mic_mode == AUDIO_MICROPHONE_HANDFREE) { fprintf(outf, "\textra-gain %d\n", bin.mic_bytes[1]); fprintf(outf, "\toutput-bias %d\n", bin.mic_bytes[2]); } else fprintf(outf, "\toutput-bias %d\n", bin.mic_bytes[1]); emit_fir(bin.mic_fir); fputs("}\n", outf); switch (bin.speaker_mode) { case AUDIO_SPEAKER_HANDHELD: fprintf(outf, "speaker ear {\n"); break; case AUDIO_SPEAKER_HANDFREE: fprintf(outf, "speaker aux {\n"); break; case AUDIO_SPEAKER_HEADSET: fprintf(outf, "speaker headset {\n"); break; case AUDIO_SPEAKER_BUZZER: fprintf(outf, "speaker buzzer {\n"); break; case AUDIO_SPEAKER_HANDHELD_HANDFREE: fprintf(outf, "speaker ear+aux {\n"); break; default: fprintf(stderr, "error: unknown speaker mode 0x%02X\n", bin.speaker_mode); exit(1); } if (bin.speaker_mode != AUDIO_SPEAKER_BUZZER) { fprintf(outf, "\tgain %d\n", bin.speaker_bytes[0]); fprintf(outf, "\taudio-filter %d\n", bin.speaker_bytes[1]); emit_fir(bin.speaker_fir); } else fprintf(outf, "\tactivate %d\n", bin.speaker_bytes[0]); fputs("}\n", outf); fprintf(outf, "sidetone %d\n", bin.sidetone_gain); fputs("aec", outf); for (i = 0; i < 5; i++) { putc(' ', outf); if (bin.aec_words[i]) fprintf(outf, "0x%X", le16toh(bin.aec_words[i])); else putc('0', outf); } putc('\n', outf); } main(argc, argv) char **argv; { if (argc < 2 || argc > 3) { fprintf(stderr, "usage: %s infile [outfile]\n", argv[0]); exit(1); } read_bin_file(argv[1]); if (argc > 2) { outf = fopen(argv[2], "w"); if (!outf) { perror(argv[2]); exit(1); } } else outf = stdout; emit_ascii(); exit(0); }