21 #include "../PicoInt.h"
23 #define cdprintf printf
24 //#define cdprintf(x...)
26 struct _file_track Tracks[100];
32 // MP3_Init(); // TODO
45 int Load_ISO(const char *iso_name, int is_bin)
47 struct stat file_stat;
48 int i, j, num_track, Cur_LBA, index, ret;
49 _scd_track *SCD_TOC_Tracks = Pico_mcd->scd.TOC.Tracks;
51 char tmp_name[1024], tmp_ext[10];
52 static char *exts[] = {
53 "%02d.mp3", " %02d.mp3", "-%02d.mp3", "_%02d.mp3", " - %02d.mp3",
54 "%d.mp3", " %d.mp3", "-%d.mp3", "_%d.mp3", " - %d.mp3",
55 /* "%02d.wav", " %02d.wav", "-%02d.wav", "_%02d.wav", " - %02d.wav",
56 "%d.wav", " %d.wav", "-%d.wav", "_%d.wav", " - %2d.wav" */
61 Tracks[0].Type = is_bin ? TYPE_BIN : TYPE_ISO;
63 ret = stat(iso_name, &file_stat);
64 if (ret != 0) return -1;
66 Tracks[0].Lenght = file_stat.st_size;
68 if (Tracks[0].Type == TYPE_ISO) Tracks[0].Lenght >>= 11; // size in sectors
69 else Tracks[0].Lenght /= 2352; // size in sectors
72 Tracks[0].F = fopen(iso_name, "rb");
73 if (Tracks[0].F == NULL)
80 if (Tracks[0].Type == TYPE_ISO) fseek(Tracks[0].F, 0x100, SEEK_SET);
81 else fseek(Tracks[0].F, 0x110, SEEK_SET);
83 // fread(buf, 1, 0x200, Tracks[0].F);
84 fseek(Tracks[0].F, 0, SEEK_SET);
86 Pico_mcd->scd.TOC.First_Track = 1;
88 SCD_TOC_Tracks[0].Num = 1;
89 SCD_TOC_Tracks[0].Type = 1; // DATA
91 SCD_TOC_Tracks[0].MSF.M = 0;
92 SCD_TOC_Tracks[0].MSF.S = 2;
93 SCD_TOC_Tracks[0].MSF.F = 0;
95 cdprintf("\nTrack 0 - %02d:%02d:%02d %s\n", SCD_TOC_Tracks[0].MSF.M, SCD_TOC_Tracks[0].MSF.S, SCD_TOC_Tracks[0].MSF.F,
96 SCD_TOC_Tracks[0].Type ? "DATA" : "AUDIO");
98 Cur_LBA = Tracks[0].Lenght; // Size in sectors
100 strcpy(tmp_name, iso_name);
102 for(num_track = 2, i = 0; i < 100; i++)
104 if (sizeof(exts)/sizeof(char *) != 10) { printf("eee"); exit(1); }
106 for(j = 0; j < sizeof(exts)/sizeof(char *); j++)
108 tmp_name[strlen(iso_name) - 4] = 0;
109 sprintf(tmp_ext, exts[j], i);
110 strcat(tmp_name, tmp_ext);
112 tmp_file = fopen(tmp_name, "rb");
117 index = num_track - Pico_mcd->scd.TOC.First_Track;
119 stat(tmp_name, &file_stat);
121 fs = (float) file_stat.st_size; // used to calculate lenght
123 Tracks[index].F = tmp_file;
125 SCD_TOC_Tracks[index].Num = num_track;
126 SCD_TOC_Tracks[index].Type = 0; // AUDIO
128 LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
130 cdprintf("\nTrack %i - %02d:%02d:%02d %s\n", index, SCD_TOC_Tracks[index].MSF.M,
131 SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F,
132 SCD_TOC_Tracks[index].Type ? "DATA" : "AUDIO");
135 Tracks[index].Type = TYPE_MP3;
136 fs /= (128>>3); // (float) (MP3_Get_Bitrate(Tracks[num_track - 1].F) >> 3);
138 Tracks[index].Lenght = (int) fs;
139 Cur_LBA += Tracks[index].Lenght;
147 Pico_mcd->scd.TOC.Last_Track = num_track - 1;
149 index = num_track - Pico_mcd->scd.TOC.First_Track;
150 SCD_TOC_Tracks[index].Num = num_track;
151 SCD_TOC_Tracks[index].Type = 0;
153 LBA_to_MSF(Cur_LBA, &(SCD_TOC_Tracks[index].MSF));
155 cdprintf("End CD - %02d:%02d:%02d\n\n", SCD_TOC_Tracks[index].MSF.M,
156 SCD_TOC_Tracks[index].MSF.S, SCD_TOC_Tracks[index].MSF.F);
162 void Unload_ISO(void)
168 for(i = 0; i < 100; i++)
170 if (Tracks[i].F) fclose(Tracks[i].F);
172 Tracks[i].Lenght = 0;
178 int FILE_Read_One_LBA_CDC(void)
181 static char cp_buf[2560];
183 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA
185 if (Tracks[0].F == NULL) return -1;
187 if (Pico_mcd->scd.Cur_LBA < 0) where_read = 0;
188 else if (Pico_mcd->scd.Cur_LBA >= Tracks[0].Lenght) where_read = Tracks[0].Lenght - 1;
189 else where_read = Pico_mcd->scd.Cur_LBA;
191 if (Tracks[0].Type == TYPE_ISO) where_read <<= 11;
192 else where_read = (where_read * 2352 + 16);
194 fseek(Tracks[0].F, where_read, SEEK_SET);
195 fread(cp_buf, 1, 2048, Tracks[0].F);
197 cdprintf("\n\nRead file CDC 1 data sector :\n");
201 // int rate, channel;
203 if (Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type == TYPE_MP3)
206 // MP3_Update(cp_buf, &rate, &channel, 0);
207 // Write_CD_Audio((short *) cp_buf, rate, channel, 588);
210 cdprintf("\n\nRead file CDC 1 audio sector :\n");
217 if (Pico_mcd->s68k_regs[0x36] & 1) // DATA track
219 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
221 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
223 // CAUTION : lookahead bit not implemented
225 Pico_mcd->scd.Cur_LBA++;
227 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
228 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
230 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N + 4], cp_buf, 2048);
231 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], &Pico_mcd->cdc.HEAD, 4);
234 cdprintf("\nRead -> WA = %d Buffer[%d] =\n", Pico_mcd->cdc.WA.N, Pico_mcd->cdc.PT.N & 0x3FFF);
235 cdprintf("Header 1 = %.2X %.2X %.2X %.2X\n", Pico_mcd->cdc.HEAD.B.B0,
236 Pico_mcd->cdc.HEAD.B.B1, Pico_mcd->cdc.HEAD.B.B2, Pico_mcd->cdc.HEAD.B.B3);
237 cdprintf("Header 2 = %.2X %.2X %.2X %.2X --- %.2X %.2X\n\n",
238 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 0) & 0x3FFF],
239 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 1) & 0x3FFF],
240 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 2) & 0x3FFF],
241 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 3) & 0x3FFF],
242 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 4) & 0x3FFF],
243 Pico_mcd->cdc.Buffer[(Pico_mcd->cdc.PT.N + 5) & 0x3FFF]);
251 Pico_mcd->scd.Cur_LBA++;
253 Pico_mcd->cdc.WA.N = (Pico_mcd->cdc.WA.N + 2352) & 0x7FFF; // add one sector to WA
254 Pico_mcd->cdc.PT.N = (Pico_mcd->cdc.PT.N + 2352) & 0x7FFF;
256 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
258 if (Pico_mcd->cdc.CTRL.B.B0 & 0x04) // WRRQ : this bit enable write to buffer
260 // CAUTION : lookahead bit not implemented
262 memcpy(&Pico_mcd->cdc.Buffer[Pico_mcd->cdc.PT.N], cp_buf, 2352);
267 if (Pico_mcd->cdc.CTRL.B.B0 & 0x80) // DECEN = decoding enable
269 Pico_mcd->cdc.STAT.B.B0 = 0x80;
271 if (Pico_mcd->cdc.CTRL.B.B0 & 0x10) // determine form bit form sub header ?
273 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x08;
277 Pico_mcd->cdc.STAT.B.B2 = Pico_mcd->cdc.CTRL.B.B1 & 0x0C;
280 if (Pico_mcd->cdc.CTRL.B.B0 & 0x02) Pico_mcd->cdc.STAT.B.B3 = 0x20; // ECC done
281 else Pico_mcd->cdc.STAT.B.B3 = 0x00; // ECC not done
283 if (Pico_mcd->cdc.IFCTRL & 0x20)
285 if (Pico_mcd->s68k_regs[0x33] & (1<<5))
287 dprintf("cdc dec irq 5");
291 Pico_mcd->cdc.IFSTAT &= ~0x20; // DEC interrupt happen
292 CDC_Decode_Reg_Read = 0; // Reset read after DEC int
301 int FILE_Play_CD_LBA(void)
303 int index = Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track;
305 cdprintf("Play FILE Comp\n");
307 if (Tracks[index].F == NULL)
312 if (Tracks[index].Type == TYPE_MP3)
314 int Track_LBA_Pos = Pico_mcd->scd.Cur_LBA - Track_to_LBA(Pico_mcd->scd.Cur_Track);
315 if (Track_LBA_Pos < 0) Track_LBA_Pos = 0;
317 // MP3_Play(index, Track_LBA_Pos); // TODO