FreeCalypso > hg > freecalypso-tools
view ffstools/tiaud/decomp.c @ 839:b053e4141a16
CHANGES: refer to doc/Audio-mode-config for AEC support changes
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 30 Jul 2021 05:42:21 +0000 |
parents | 516066ac5bc1 |
children |
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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; int is_new_aec; 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 == MODE_FILE_SIZE_OLDAEC) is_new_aec = 0; else if (st.st_size == MODE_FILE_SIZE_NEWAEC) is_new_aec = 1; else { fprintf(stderr, "%s has the wrong length\n", filename); exit(1); } read(fd, &bin, st.st_size); 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, num_aec; 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); if (is_new_aec) { fputs("aec-new", outf); num_aec = 12; } else { fputs("aec", outf); num_aec = 5; } for (i = 0; i < num_aec; 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); }