1 /***********************************************************
3 * This source was taken from the Gens project *
4 * Written by Stéphane Dallongeville *
5 * Copyright (c) 2002 by Stéphane Dallongeville *
6 * Modified/adapted for PicoDrive by notaz, 2007 *
8 ***********************************************************/
10 #include "../pico_int.h"
14 //#define cdprintf(f,...) printf(f "\n",##__VA_ARGS__) // tmp
16 static void to_upper(char *d, const char *s)
18 for (; *s != 0; d++, s++) {
19 if ('a' <= *s && *s <= 'z')
26 static int audio_track_mp3(const char *fname, int index)
28 _scd_track *Tracks = Pico_mcd->TOC.Tracks;
32 tmp_file = fopen(fname, "rb");
36 ret = fseek(tmp_file, 0, SEEK_END);
37 fs = ftell(tmp_file); // used to calculate length
38 fseek(tmp_file, 0, SEEK_SET);
40 #ifdef _PSP_FW_VERSION
41 // some systems (like PSP) can't have many open files at a time,
42 // so we work with their names instead.
44 tmp_file = (void *) strdup(fname);
46 Tracks[index].KBtps = (short) mp3_get_bitrate(tmp_file, fs);
47 Tracks[index].KBtps >>= 3;
48 if (ret != 0 || Tracks[index].KBtps <= 0)
50 elprintf(EL_STATUS, "track %2i: mp3 bitrate %i", index+1, Tracks[index].KBtps);
51 #ifdef _PSP_FW_VERSION
59 Tracks[index].F = tmp_file;
62 Tracks[index].ftype = TYPE_MP3;
64 fs /= Tracks[index].KBtps * 1000;
65 Tracks[index].Length = fs;
66 Tracks[index].Offset = 0;
71 PICO_INTERNAL int Load_CD_Image(const char *cd_img_name, cd_img_type type)
73 int i, j, num_track, Cur_LBA, index, ret, iso_name_len, missed, cd_img_sectors;
74 _scd_track *Tracks = Pico_mcd->TOC.Tracks;
75 char tmp_name[1024], tmp_ext[10], tmp_ext_u[10];
76 cue_data_t *cue_data = NULL;
78 static const char *exts[] = {
79 "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
80 "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
83 if (PicoCDLoadProgressCB != NULL)
84 PicoCDLoadProgressCB(cd_img_name, 1);
89 ret = strlen(cd_img_name);
90 if (ret >= 3 && strcasecmp(cd_img_name + ret - 3, "cue") == 0)
91 cue_data = cue_parse(cd_img_name);
93 cd_img_name = cue_data->tracks[1].fname;
95 Tracks[0].ftype = type == CIT_BIN ? TYPE_BIN : TYPE_ISO;
97 Tracks[0].F = pmf = pm_open(cd_img_name);
98 if (Tracks[0].F == NULL)
101 Tracks[0].Length = 0;
102 if (cue_data != NULL)
103 cue_destroy(cue_data);
107 if (Tracks[0].ftype == TYPE_ISO)
108 cd_img_sectors = pmf->size >>= 11; // size in sectors
109 else cd_img_sectors = pmf->size /= 2352;
110 Tracks[0].Offset = 0;
112 Tracks[0].MSF.M = 0; // minutes
113 Tracks[0].MSF.S = 2; // seconds
114 Tracks[0].MSF.F = 0; // frames
116 elprintf(EL_STATUS, "Track 1: %02d:%02d:%02d %9i DATA",
117 Tracks[0].MSF.M, Tracks[0].MSF.S, Tracks[0].MSF.F, Tracks[0].Length);
119 Cur_LBA = Tracks[0].Length = cd_img_sectors;
121 if (cue_data != NULL)
123 if (cue_data->tracks[2].fname == NULL) { // NULL means track2 is in same file as track1
124 Cur_LBA = Tracks[0].Length = cue_data->tracks[2].sector_offset;
126 i = 100 / cue_data->track_count+1;
127 for (num_track = 2; num_track <= cue_data->track_count; num_track++)
129 if (PicoCDLoadProgressCB != NULL)
130 PicoCDLoadProgressCB(cd_img_name, i * num_track);
131 index = num_track - 1;
132 Cur_LBA += cue_data->tracks[num_track].pregap;
133 if (cue_data->tracks[num_track].type == CT_MP3) {
134 ret = audio_track_mp3(cue_data->tracks[num_track].fname, index);
139 Tracks[index].ftype = cue_data->tracks[num_track].type;
140 if (cue_data->tracks[num_track].fname != NULL)
142 pm_file *pmfn = pm_open(cue_data->tracks[num_track].fname);
145 // addume raw, ignore header for wav..
146 Tracks[index].F = pmfn;
147 Tracks[index].Length = pmfn->size / 2352;
148 Tracks[index].Offset = cue_data->tracks[num_track].sector_offset;
152 elprintf(EL_STATUS, "track %2i (%s): can't determine length",
153 num_track, cue_data->tracks[num_track].fname);
154 Tracks[index].Length = 2*75;
155 Tracks[index].Offset = 0;
160 if (num_track < cue_data->track_count)
161 Tracks[index].Length = cue_data->tracks[num_track+1].sector_offset -
162 cue_data->tracks[num_track].sector_offset;
164 Tracks[index].Length = cd_img_sectors - cue_data->tracks[num_track].sector_offset;
165 Tracks[index].Offset = cue_data->tracks[num_track].sector_offset;
169 if (cue_data->tracks[num_track].sector_xlength != 0)
170 // overriden by custom cue command
171 Tracks[index].Length = cue_data->tracks[num_track].sector_xlength;
173 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
174 Cur_LBA += Tracks[index].Length;
176 elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", num_track, Tracks[index].MSF.M,
177 Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length,
178 cue_data->tracks[num_track].fname);
180 cue_destroy(cue_data);
184 /* mp3 track autosearch, Gens-like */
185 iso_name_len = strlen(cd_img_name);
186 if (iso_name_len >= sizeof(tmp_name))
187 iso_name_len = sizeof(tmp_name) - 1;
189 for (num_track = 2, i = 0, missed = 0; i < 100 && missed < 4; i++)
191 if (PicoCDLoadProgressCB != NULL && i > 1)
192 PicoCDLoadProgressCB(cd_img_name, i + (100-i)*missed/4);
194 for (j = 0; j < sizeof(exts)/sizeof(char *); j++)
199 index = num_track - 1;
201 sprintf(tmp_ext, exts[j], i);
202 ext_len = strlen(tmp_ext);
203 to_upper(tmp_ext_u, tmp_ext);
205 memcpy(tmp_name, cd_img_name, iso_name_len + 1);
206 p = tmp_name + iso_name_len - 4;
209 ret = audio_track_mp3(tmp_name, index);
211 strcpy(p, tmp_ext_u);
212 ret = audio_track_mp3(tmp_name, index);
215 if (ret != 0 && i > 1 && iso_name_len > ext_len) {
216 p = tmp_name + iso_name_len - ext_len;
218 ret = audio_track_mp3(tmp_name, index);
220 strcpy(p, tmp_ext_u);
221 ret = audio_track_mp3(tmp_name, index);
227 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
228 Cur_LBA += Tracks[index].Length;
230 elprintf(EL_STATUS, "Track %2i: %02d:%02d:%02d %9i AUDIO - %s", num_track, Tracks[index].MSF.M,
231 Tracks[index].MSF.S, Tracks[index].MSF.F, Tracks[index].Length, tmp_name);
238 if (ret != 0 && i > 1) missed++;
242 Pico_mcd->TOC.Last_Track = num_track - 1;
244 index = num_track - 1;
246 LBA_to_MSF(Cur_LBA, &Tracks[index].MSF);
248 elprintf(EL_STATUS, "End CD - %02d:%02d:%02d\n", Tracks[index].MSF.M,
249 Tracks[index].MSF.S, Tracks[index].MSF.F);
251 if (PicoCDLoadProgressCB != NULL)
252 PicoCDLoadProgressCB(cd_img_name, 100);
258 PICO_INTERNAL void Unload_ISO(void)
262 if (Pico_mcd == NULL) return;
264 if (Pico_mcd->TOC.Tracks[0].F) pm_close(Pico_mcd->TOC.Tracks[0].F);
266 for(i = 1; i < 100; i++)
268 if (Pico_mcd->TOC.Tracks[i].F != NULL)
270 if (Pico_mcd->TOC.Tracks[i].ftype == TYPE_MP3)
271 #ifdef _PSP_FW_VERSION
272 free(Pico_mcd->TOC.Tracks[i].F);
274 fclose(Pico_mcd->TOC.Tracks[i].F);
277 pm_close(Pico_mcd->TOC.Tracks[i].F);
280 memset(Pico_mcd->TOC.Tracks, 0, sizeof(Pico_mcd->TOC.Tracks));
284 PICO_INTERNAL int FILE_Read_One_LBA_CDC(void)
286 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
288 if (Pico_mcd->TOC.Tracks[0].F == NULL) return -1;
291 //fseek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
292 //fread(cp_buf, 1, 2048, Pico_mcd->TOC.Tracks[0].F);
294 cdprintf("Read file CDC 1 data sector :\n");
298 cdprintf("Read file CDC 1 audio sector :\n");
305 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
307 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
309 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
313 // CAUTION : lookahead bit not implemented
315 if (Pico_mcd->scd.Cur_LBA < 0)
317 else if (Pico_mcd->scd.Cur_LBA >= Pico_mcd->TOC.Tracks[0].Length)
318 where_read = Pico_mcd->TOC.Tracks[0].Length - 1;
319 else where_read = Pico_mcd->scd.Cur_LBA;
321 Pico_mcd->scd.Cur_LBA++;
323 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
324 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
326 *(unsigned int *)(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N) = Pico_mcd->cdc.HEAD.N;
327 //memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
329 //pm_seek(Pico_mcd->TOC.Tracks[0].F, where_read, SEEK_SET);
330 //pm_read(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, 2048, Pico_mcd->TOC.Tracks[0].F);
331 PicoCDBufferRead(Pico_mcd->cdc.Buffer + Pico_mcd->cdc.PT.N + 4, where_read);
333 cdprintf("Read -> WA = %d Buffer[%d] =", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
334 cdprintf("Header 1 = %.2X %.2X %.2X %.2X", Pico_mcd->cdc.HEAD.B.B0,
335 Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
336 cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
337 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
338 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
339 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
340 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
341 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
342 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
349 Pico_mcd->scd.Cur_LBA++;
351 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
352 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
354 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
356 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
358 // CAUTION : lookahead bit not implemented
360 // this is pretty rough, but oh well - not much depends on this anyway
361 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cdda_out_buffer, 2352);
366 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
368 Pico_mcd->cdc.STAT.B.B0 = 0x80;
370 if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
372 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
376 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
379 if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done
380 else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done
382 if (Pico_mcd->cdc.IFCTRL & 0x20)
384 if (Pico_mcd->s68k_regs[0x33] & (1<<5))
386 elprintf(EL_INTS, "cdc dec irq 5");
390 Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
391 Pico_mcd->cdc.Decode_Reg_Read = 0; // Reset read after DEC int