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final src and Makefile adjustments for PSP release
[picodrive.git] / Pico / cd / cd_sys.c
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1/***********************************************************\r
2 * *\r
3 * This source file was taken from the Gens project *\r
4 * Written by Stéphane Dallongeville *\r
5 * Copyright (c) 2002 by Stéphane Dallongeville *\r
6 * Modified/adapted for PicoDrive by notaz, 2007 *\r
7 * *\r
8 ***********************************************************/\r
9\r
10#include <stdio.h>\r
11\r
12#include "../PicoInt.h"\r
13#include "cd_sys.h"\r
14#include "cd_file.h"\r
15\r
16#define cdprintf dprintf\r
17//#define cdprintf(x...)\r
18#define DEBUG_CD\r
19\r
20#define TRAY_OPEN 0x0500 // TRAY OPEN CDD status\r
21#define NOCD 0x0000 // CD removed CDD status\r
22#define STOPPED 0x0900 // STOPPED CDD status (happen after stop or close tray command)\r
23#define READY 0x0400 // READY CDD status (also used for seeking)\r
24#define FAST_FOW 0x0300 // FAST FORWARD track CDD status\r
25#define FAST_REV 0x10300 // FAST REVERSE track CDD status\r
26#define PLAYING 0x0100 // PLAYING audio track CDD status\r
27\r
28\r
29static int CD_Present = 0;\r
30\r
31\r
32#define CHECK_TRAY_OPEN \\r
33if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) \\r
34{ \\r
35 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \\r
36 \\r
37 Pico_mcd->cdd.Minute = 0; \\r
38 Pico_mcd->cdd.Seconde = 0; \\r
39 Pico_mcd->cdd.Frame = 0; \\r
40 Pico_mcd->cdd.Ext = 0; \\r
41 \\r
42 Pico_mcd->scd.CDD_Complete = 1; \\r
43 \\r
44 return 2; \\r
45}\r
46\r
47\r
48#define CHECK_CD_PRESENT \\r
49if (!CD_Present) \\r
50{ \\r
51 Pico_mcd->scd.Status_CDD = NOCD; \\r
52 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \\r
53 \\r
54 Pico_mcd->cdd.Minute = 0; \\r
55 Pico_mcd->cdd.Seconde = 0; \\r
56 Pico_mcd->cdd.Frame = 0; \\r
57 Pico_mcd->cdd.Ext = 0; \\r
58 \\r
59 Pico_mcd->scd.CDD_Complete = 1; \\r
60 \\r
61 return 3; \\r
62}\r
63\r
64\r
65static int MSF_to_LBA(_msf *MSF)\r
66{\r
67 return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;\r
68}\r
69\r
70\r
71PICO_INTERNAL void LBA_to_MSF(int lba, _msf *MSF)\r
72{\r
73 if (lba < -150) lba = 0;\r
74 else lba += 150;\r
75 MSF->M = lba / (60 * 75);\r
76 MSF->S = (lba / 75) % 60;\r
77 MSF->F = lba % 75;\r
78}\r
79\r
80\r
81static unsigned int MSF_to_Track(_msf *MSF)\r
82{\r
83 int i, Start, Cur;\r
84\r
85 Start = (MSF->M << 16) + (MSF->S << 8) + MSF->F;\r
86\r
87 for(i = 1; i <= (Pico_mcd->TOC.Last_Track + 1); i++)\r
88 {\r
89 Cur = Pico_mcd->TOC.Tracks[i - 1].MSF.M << 16;\r
90 Cur += Pico_mcd->TOC.Tracks[i - 1].MSF.S << 8;\r
91 Cur += Pico_mcd->TOC.Tracks[i - 1].MSF.F;\r
92\r
93 if (Cur > Start) break;\r
94 }\r
95\r
96 --i;\r
97\r
98 if (i > Pico_mcd->TOC.Last_Track) return 100;\r
99 else if (i < 1) i = 1;\r
100\r
101 return (unsigned) i;\r
102}\r
103\r
104\r
105static unsigned int LBA_to_Track(int lba)\r
106{\r
107 _msf MSF;\r
108\r
109 LBA_to_MSF(lba, &MSF);\r
110 return MSF_to_Track(&MSF);\r
111}\r
112\r
113\r
114static void Track_to_MSF(int track, _msf *MSF)\r
115{\r
116 if (track < 1) track = 1;\r
117 else if (track > Pico_mcd->TOC.Last_Track) track = Pico_mcd->TOC.Last_Track;\r
118\r
119 MSF->M = Pico_mcd->TOC.Tracks[track - 1].MSF.M;\r
120 MSF->S = Pico_mcd->TOC.Tracks[track - 1].MSF.S;\r
121 MSF->F = Pico_mcd->TOC.Tracks[track - 1].MSF.F;\r
122}\r
123\r
124\r
125PICO_INTERNAL int Track_to_LBA(int track)\r
126{\r
127 _msf MSF;\r
128\r
129 Track_to_MSF(track, &MSF);\r
130 return MSF_to_LBA(&MSF);\r
131}\r
132\r
133\r
134PICO_INTERNAL void Check_CD_Command(void)\r
135{\r
136 cdprintf("CHECK CD COMMAND");\r
137\r
138 // Check CDC\r
139 if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...\r
140 {\r
141 cdprintf("Got a read command");\r
142\r
143 // DATA ?\r
144 if (Pico_mcd->scd.Cur_Track == 1)\r
145 Pico_mcd->s68k_regs[0x36] |= 0x01;\r
146 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
147\r
148 if (Pico_mcd->scd.File_Add_Delay == 0)\r
149 {\r
150 FILE_Read_One_LBA_CDC();\r
151 }\r
152 else Pico_mcd->scd.File_Add_Delay--;\r
153 }\r
154\r
155 // Check CDD\r
156 if (Pico_mcd->scd.CDD_Complete)\r
157 {\r
158 Pico_mcd->scd.CDD_Complete = 0;\r
159\r
160 CDD_Export_Status();\r
161 }\r
162\r
163 if (Pico_mcd->scd.Status_CDD == FAST_FOW)\r
164 {\r
165 Pico_mcd->scd.Cur_LBA += 10;\r
166 CDC_Update_Header();\r
167\r
168 }\r
169 else if (Pico_mcd->scd.Status_CDD == FAST_REV)\r
170 {\r
171 Pico_mcd->scd.Cur_LBA -= 10;\r
172 if (Pico_mcd->scd.Cur_LBA < -150) Pico_mcd->scd.Cur_LBA = -150;\r
173 CDC_Update_Header();\r
174 }\r
175}\r
176\r
177\r
178PICO_INTERNAL int Init_CD_Driver(void)\r
179{\r
180 return 0;\r
181}\r
182\r
183\r
184PICO_INTERNAL void End_CD_Driver(void)\r
185{\r
186 Unload_ISO();\r
187}\r
188\r
189\r
190PICO_INTERNAL void Reset_CD(void)\r
191{\r
192 Pico_mcd->scd.Cur_Track = 0;\r
193 Pico_mcd->scd.Cur_LBA = -150;\r
194 Pico_mcd->scd.Status_CDC &= ~1;\r
195 Pico_mcd->scd.Status_CDD = CD_Present ? READY : NOCD;\r
196 Pico_mcd->scd.CDD_Complete = 0;\r
197 Pico_mcd->scd.File_Add_Delay = 0;\r
198}\r
199\r
200\r
201int Insert_CD(char *iso_name, int is_bin)\r
202{\r
203 int ret = 0;\r
204\r
205 CD_Present = 0;\r
206 Pico_mcd->scd.Status_CDD = NOCD;\r
207\r
208 if (iso_name != NULL)\r
209 {\r
210 ret = Load_ISO(iso_name, is_bin);\r
211 if (ret == 0) {\r
212 CD_Present = 1;\r
213 Pico_mcd->scd.Status_CDD = READY;\r
214 }\r
215 }\r
216\r
217 return ret;\r
218}\r
219\r
220\r
221void Stop_CD(void)\r
222{\r
223 Unload_ISO();\r
224 CD_Present = 0;\r
225}\r
226\r
227\r
228/*\r
229PICO_INTERNAL void Change_CD(void)\r
230{\r
231 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();\r
232 else Open_Tray_CDD_cD();\r
233}\r
234*/\r
235\r
236PICO_INTERNAL int Get_Status_CDD_c0(void)\r
237{\r
238 cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r
239\r
240 // Clear immediat status\r
241 if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)\r
242 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r
243 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0700)\r
244 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r
245 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)\r
246 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r
247\r
248 Pico_mcd->scd.CDD_Complete = 1;\r
249\r
250 return 0;\r
251}\r
252\r
253\r
254PICO_INTERNAL int Stop_CDD_c1(void)\r
255{\r
256 CHECK_TRAY_OPEN\r
257\r
258 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
259\r
260 if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;\r
261 else Pico_mcd->scd.Status_CDD = NOCD;\r
262 Pico_mcd->cdd.Status = 0x0000;\r
263\r
264 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r
265\r
266 Pico_mcd->cdd.Minute = 0;\r
267 Pico_mcd->cdd.Seconde = 0;\r
268 Pico_mcd->cdd.Frame = 0;\r
269 Pico_mcd->cdd.Ext = 0;\r
270\r
271 Pico_mcd->scd.CDD_Complete = 1;\r
272\r
273 return 0;\r
274}\r
275\r
276\r
277PICO_INTERNAL int Get_Pos_CDD_c20(void)\r
278{\r
279 _msf MSF;\r
280\r
281 cdprintf("command 200 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r
282\r
283 CHECK_TRAY_OPEN\r
284\r
285 Pico_mcd->cdd.Status &= 0xFF;\r
286 if (!CD_Present)\r
287 {\r
288 Pico_mcd->scd.Status_CDD = NOCD;\r
289 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
290 }\r
291// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
292 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
293\r
294 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r
295\r
296 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r
297\r
298 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r
299 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r
300 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r
301 Pico_mcd->cdd.Ext = 0;\r
302\r
303 Pico_mcd->scd.CDD_Complete = 1;\r
304\r
305 return 0;\r
306}\r
307\r
308\r
309PICO_INTERNAL int Get_Track_Pos_CDD_c21(void)\r
310{\r
311 int elapsed_time;\r
312 _msf MSF;\r
313\r
314 cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r
315\r
316 CHECK_TRAY_OPEN\r
317\r
318 Pico_mcd->cdd.Status &= 0xFF;\r
319 if (!CD_Present)\r
320 {\r
321 Pico_mcd->scd.Status_CDD = NOCD;\r
322 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
323 }\r
324// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
325 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
326\r
327 elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));\r
328 LBA_to_MSF(elapsed_time - 150, &MSF);\r
329\r
330 cdprintf(" elapsed = %d", elapsed_time);\r
331\r
332 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r
333 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r
334 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r
335 Pico_mcd->cdd.Ext = 0;\r
336\r
337 Pico_mcd->scd.CDD_Complete = 1;\r
338\r
339 return 0;\r
340}\r
341\r
342\r
343PICO_INTERNAL int Get_Current_Track_CDD_c22(void)\r
344{\r
345 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r
346\r
347 CHECK_TRAY_OPEN\r
348\r
349 Pico_mcd->cdd.Status &= 0xFF;\r
350 if (!CD_Present)\r
351 {\r
352 Pico_mcd->scd.Status_CDD = NOCD;\r
353 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
354 }\r
355// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
356 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
357\r
358 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r
359\r
360 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r
361 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
362 Pico_mcd->cdd.Seconde = 0;\r
363 Pico_mcd->cdd.Frame = 0;\r
364 Pico_mcd->cdd.Ext = 0;\r
365\r
366 Pico_mcd->scd.CDD_Complete = 1;\r
367\r
368 return 0;\r
369}\r
370\r
371\r
372PICO_INTERNAL int Get_Total_Lenght_CDD_c23(void)\r
373{\r
374 CHECK_TRAY_OPEN\r
375\r
376 Pico_mcd->cdd.Status &= 0xFF;\r
377 if (!CD_Present)\r
378 {\r
379 Pico_mcd->scd.Status_CDD = NOCD;\r
380 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
381 }\r
382// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
383 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
384\r
385 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.M);\r
386 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.S);\r
387 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.F);\r
388 Pico_mcd->cdd.Ext = 0;\r
389\r
390 Pico_mcd->scd.CDD_Complete = 1;\r
391\r
392 return 0;\r
393}\r
394\r
395\r
396PICO_INTERNAL int Get_First_Last_Track_CDD_c24(void)\r
397{\r
398 CHECK_TRAY_OPEN\r
399\r
400 Pico_mcd->cdd.Status &= 0xFF;\r
401 if (!CD_Present)\r
402 {\r
403 Pico_mcd->scd.Status_CDD = NOCD;\r
404 }\r
405// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
406 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
407\r
408 Pico_mcd->cdd.Minute = INT_TO_BCDW(1);\r
409 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Last_Track);\r
410 Pico_mcd->cdd.Frame = 0;\r
411 Pico_mcd->cdd.Ext = 0;\r
412\r
413 Pico_mcd->scd.CDD_Complete = 1;\r
414\r
415 return 0;\r
416}\r
417\r
418\r
419PICO_INTERNAL int Get_Track_Adr_CDD_c25(void)\r
420{\r
421 int track_number;\r
422\r
423 CHECK_TRAY_OPEN\r
424\r
425 // track number in TC4 & TC5\r
426\r
427 track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r
428\r
429 Pico_mcd->cdd.Status &= 0xFF;\r
430 if (!CD_Present)\r
431 {\r
432 Pico_mcd->scd.Status_CDD = NOCD;\r
433 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
434 }\r
435// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
436 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
437\r
438 if (track_number > Pico_mcd->TOC.Last_Track) track_number = Pico_mcd->TOC.Last_Track;\r
439 else if (track_number < 1) track_number = 1;\r
440\r
441 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.M);\r
442 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.S);\r
443 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.F);\r
444 Pico_mcd->cdd.Ext = track_number % 10;\r
445\r
446 if (track_number == 1) Pico_mcd->cdd.Frame |= 0x0800; // data track\r
447\r
448 Pico_mcd->scd.CDD_Complete = 1;\r
449 return 0;\r
450}\r
451\r
452\r
453PICO_INTERNAL int Play_CDD_c3(void)\r
454{\r
455 _msf MSF;\r
456 int delay, new_lba;\r
457\r
458 CHECK_TRAY_OPEN\r
459 CHECK_CD_PRESENT\r
460\r
461 // MSF of the track to play in TC buffer\r
462\r
463 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r
464 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r
465 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r
466\r
467 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r
468\r
469 new_lba = MSF_to_LBA(&MSF);\r
470 delay = new_lba - Pico_mcd->scd.Cur_LBA;\r
471 if (delay < 0) delay = -delay;\r
472 delay >>= 12;\r
473\r
474 Pico_mcd->scd.Cur_LBA = new_lba;\r
475 CDC_Update_Header();\r
476\r
477 cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r
478\r
479 if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;\r
480\r
481 Pico_mcd->scd.Status_CDD = PLAYING;\r
482 Pico_mcd->cdd.Status = 0x0102;\r
483// Pico_mcd->cdd.Status = COMM_OK;\r
484\r
485 if (Pico_mcd->scd.File_Add_Delay == 0) Pico_mcd->scd.File_Add_Delay = delay;\r
486\r
487 if (Pico_mcd->scd.Cur_Track == 1)\r
488 {\r
489 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r
490 }\r
491 else\r
492 {\r
493 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
494 //CD_Audio_Starting = 1;\r
495 FILE_Play_CD_LBA();\r
496 }\r
497\r
498 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r
499 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
500 Pico_mcd->cdd.Seconde = 0;\r
501 Pico_mcd->cdd.Frame = 0;\r
502 Pico_mcd->cdd.Ext = 0;\r
503\r
504 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r
505\r
506 Pico_mcd->scd.CDD_Complete = 1;\r
507 return 0;\r
508}\r
509\r
510\r
511PICO_INTERNAL int Seek_CDD_c4(void)\r
512{\r
513 _msf MSF;\r
514\r
515 CHECK_TRAY_OPEN\r
516 CHECK_CD_PRESENT\r
517\r
518 // MSF to seek in TC buffer\r
519\r
520 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r
521 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r
522 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r
523\r
524 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r
525 Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);\r
526 CDC_Update_Header();\r
527\r
528 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
529\r
530 Pico_mcd->scd.Status_CDD = READY;\r
531 Pico_mcd->cdd.Status = 0x0200;\r
532\r
533 // DATA ?\r
534 if (Pico_mcd->scd.Cur_Track == 1)\r
535 Pico_mcd->s68k_regs[0x36] |= 0x01;\r
536 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
537\r
538 Pico_mcd->cdd.Minute = 0;\r
539 Pico_mcd->cdd.Seconde = 0;\r
540 Pico_mcd->cdd.Frame = 0;\r
541 Pico_mcd->cdd.Ext = 0;\r
542\r
543 Pico_mcd->scd.CDD_Complete = 1;\r
544\r
545 return 0;\r
546}\r
547\r
548\r
549PICO_INTERNAL int Pause_CDD_c6(void)\r
550{\r
551 CHECK_TRAY_OPEN\r
552 CHECK_CD_PRESENT\r
553\r
554 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data\r
555\r
556 Pico_mcd->scd.Status_CDD = READY;\r
557 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r
558\r
559 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r
560\r
561 Pico_mcd->cdd.Minute = 0;\r
562 Pico_mcd->cdd.Seconde = 0;\r
563 Pico_mcd->cdd.Frame = 0;\r
564 Pico_mcd->cdd.Ext = 0;\r
565\r
566 Pico_mcd->scd.CDD_Complete = 1;\r
567\r
568 return 0;\r
569}\r
570\r
571\r
572PICO_INTERNAL int Resume_CDD_c7(void)\r
573{\r
574 CHECK_TRAY_OPEN\r
575 CHECK_CD_PRESENT\r
576\r
577 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r
578\r
579#ifdef DEBUG_CD\r
580 {\r
581 _msf MSF;\r
582 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r
583 cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r
584 }\r
585#endif\r
586\r
587 Pico_mcd->scd.Status_CDD = PLAYING;\r
588 Pico_mcd->cdd.Status = 0x0102;\r
589\r
590 if (Pico_mcd->scd.Cur_Track == 1)\r
591 {\r
592 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r
593 }\r
594 else\r
595 {\r
596 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
597 //CD_Audio_Starting = 1;\r
598 FILE_Play_CD_LBA();\r
599 }\r
600\r
601 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r
602 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
603 Pico_mcd->cdd.Seconde = 0;\r
604 Pico_mcd->cdd.Frame = 0;\r
605 Pico_mcd->cdd.Ext = 0;\r
606\r
607 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r
608\r
609 Pico_mcd->scd.CDD_Complete = 1;\r
610 return 0;\r
611}\r
612\r
613\r
614PICO_INTERNAL int Fast_Foward_CDD_c8(void)\r
615{\r
616 CHECK_TRAY_OPEN\r
617 CHECK_CD_PRESENT\r
618\r
619 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
620\r
621 Pico_mcd->scd.Status_CDD = FAST_FOW;\r
622 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r
623\r
624 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
625 Pico_mcd->cdd.Seconde = 0;\r
626 Pico_mcd->cdd.Frame = 0;\r
627 Pico_mcd->cdd.Ext = 0;\r
628\r
629 Pico_mcd->scd.CDD_Complete = 1;\r
630\r
631 return 0;\r
632}\r
633\r
634\r
635PICO_INTERNAL int Fast_Rewind_CDD_c9(void)\r
636{\r
637 CHECK_TRAY_OPEN\r
638 CHECK_CD_PRESENT\r
639\r
640 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
641\r
642 Pico_mcd->scd.Status_CDD = FAST_REV;\r
643 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r
644\r
645 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
646 Pico_mcd->cdd.Seconde = 0;\r
647 Pico_mcd->cdd.Frame = 0;\r
648 Pico_mcd->cdd.Ext = 0;\r
649\r
650 Pico_mcd->scd.CDD_Complete = 1;\r
651\r
652 return 0;\r
653}\r
654\r
655\r
656PICO_INTERNAL int Close_Tray_CDD_cC(void)\r
657{\r
658 CD_Present = 0;\r
659 //Clear_Sound_Buffer();\r
660\r
661 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
662\r
663 printf("tray close\n");\r
664\r
665 if (PicoMCDcloseTray != NULL)\r
666 CD_Present = PicoMCDcloseTray();\r
667\r
668 Pico_mcd->scd.Status_CDD = CD_Present ? STOPPED : NOCD;\r
669 Pico_mcd->cdd.Status = 0x0000;\r
670\r
671 Pico_mcd->cdd.Minute = 0;\r
672 Pico_mcd->cdd.Seconde = 0;\r
673 Pico_mcd->cdd.Frame = 0;\r
674 Pico_mcd->cdd.Ext = 0;\r
675\r
676 Pico_mcd->scd.CDD_Complete = 1;\r
677\r
678 return 0;\r
679}\r
680\r
681\r
682PICO_INTERNAL int Open_Tray_CDD_cD(void)\r
683{\r
684 CHECK_TRAY_OPEN\r
685\r
686 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
687\r
688 printf("tray open\n");\r
689\r
690 Unload_ISO();\r
691 CD_Present = 0;\r
692\r
693 if (PicoMCDopenTray != NULL)\r
694 PicoMCDopenTray();\r
695\r
696 Pico_mcd->scd.Status_CDD = TRAY_OPEN;\r
697 Pico_mcd->cdd.Status = 0x0E00;\r
698\r
699 Pico_mcd->cdd.Minute = 0;\r
700 Pico_mcd->cdd.Seconde = 0;\r
701 Pico_mcd->cdd.Frame = 0;\r
702 Pico_mcd->cdd.Ext = 0;\r
703\r
704 Pico_mcd->scd.CDD_Complete = 1;\r
705\r
706 return 0;\r
707}\r
708\r
709\r
710PICO_INTERNAL int CDD_cA(void)\r
711{\r
712 CHECK_TRAY_OPEN\r
713 CHECK_CD_PRESENT\r
714\r
715 Pico_mcd->scd.Status_CDC &= ~1;\r
716\r
717 Pico_mcd->scd.Status_CDD = READY;\r
718 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r
719\r
720 Pico_mcd->cdd.Minute = 0;\r
721 Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);\r
722 Pico_mcd->cdd.Frame = INT_TO_BCDW(1);\r
723 Pico_mcd->cdd.Ext = 0;\r
724\r
725 Pico_mcd->scd.CDD_Complete = 1;\r
726\r
727 return 0;\r
728}\r
729\r
730\r
731PICO_INTERNAL int CDD_Def(void)\r
732{\r
733 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r
734\r
735 Pico_mcd->cdd.Minute = 0;\r
736 Pico_mcd->cdd.Seconde = 0;\r
737 Pico_mcd->cdd.Frame = 0;\r
738 Pico_mcd->cdd.Ext = 0;\r
739\r
740 return 0;\r
741}\r
742\r
743\r
fast MegaDrive/MegaCD/32X emulator