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some skin adjustments
[picodrive.git] / Pico / cd / cd_sys.c
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6cadc2da 1/***********************************************************\r
2 * *\r
3 * This source 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
cc68a136 10#include <stdio.h>\r
11#include "cd_sys.h"\r
bf098bc5 12#include "cd_file.h"\r
cc68a136 13\r
14#include "../PicoInt.h"\r
15\r
c459aefd 16#define cdprintf dprintf\r
cc68a136 17//#define cdprintf(x...)\r
c459aefd 18#define DEBUG_CD\r
cc68a136 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
cc68a136 28\r
cc68a136 29static int CD_Present = 0;\r
cc68a136 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
51a902ae 42 Pico_mcd->scd.CDD_Complete = 1; \\r
cc68a136 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
51a902ae 59 Pico_mcd->scd.CDD_Complete = 1; \\r
cc68a136 60 \\r
61 return 3; \\r
62}\r
63\r
64\r
cc68a136 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
71void 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
75736070 87 for(i = 1; i <= (Pico_mcd->TOC.Last_Track + 1); i++)\r
cc68a136 88 {\r
75736070 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
cc68a136 92\r
93 if (Cur > Start) break;\r
94 }\r
95\r
96 --i;\r
97\r
75736070 98 if (i > Pico_mcd->TOC.Last_Track) return 100;\r
99 else if (i < 1) i = 1;\r
cc68a136 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
75736070 116 if (track < 1) track = 1;\r
117 else if (track > Pico_mcd->TOC.Last_Track) track = Pico_mcd->TOC.Last_Track;\r
cc68a136 118\r
75736070 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
cc68a136 122}\r
123\r
124\r
125int 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
134void Check_CD_Command(void)\r
135{\r
c459aefd 136 cdprintf("CHECK CD COMMAND");\r
cc68a136 137\r
cc68a136 138 // Check CDC\r
cc68a136 139 if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...\r
140 {\r
c459aefd 141 cdprintf("Got a read command");\r
cc68a136 142\r
143 // DATA ?\r
75736070 144 if (Pico_mcd->scd.Cur_Track == 1)\r
cc68a136 145 Pico_mcd->s68k_regs[0x36] |= 0x01;\r
146 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
147\r
51a902ae 148 if (Pico_mcd->scd.File_Add_Delay == 0)\r
cc68a136 149 {\r
cc68a136 150 FILE_Read_One_LBA_CDC();\r
cc68a136 151 }\r
51a902ae 152 else Pico_mcd->scd.File_Add_Delay--;\r
cc68a136 153 }\r
154\r
1cd356a3 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
cc68a136 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
178int Init_CD_Driver(void)\r
179{\r
cc68a136 180 return 0;\r
181}\r
182\r
183\r
184void End_CD_Driver(void)\r
185{\r
cc68a136 186 FILE_End();\r
cc68a136 187}\r
188\r
189\r
190void Reset_CD(void)\r
191{\r
192 Pico_mcd->scd.Cur_Track = 0;\r
193 Pico_mcd->scd.Cur_LBA = -150;\r
5c69a605 194 Pico_mcd->scd.Status_CDC &= ~1;\r
721cd396 195 Pico_mcd->scd.Status_CDD = CD_Present ? READY : NOCD;\r
51a902ae 196 Pico_mcd->scd.CDD_Complete = 0;\r
5c69a605 197 Pico_mcd->scd.File_Add_Delay = 0;\r
cc68a136 198}\r
199\r
200\r
bf098bc5 201int Insert_CD(char *iso_name, int is_bin)\r
cc68a136 202{\r
bf098bc5 203 int ret = 0;\r
204\r
cc68a136 205// memset(CD_Audio_Buffer_L, 0, 4096 * 4);\r
206// memset(CD_Audio_Buffer_R, 0, 4096 * 4);\r
207\r
bf098bc5 208 CD_Present = 0;\r
721cd396 209 Pico_mcd->scd.Status_CDD = NOCD;\r
bf098bc5 210\r
211 if (iso_name != NULL)\r
cc68a136 212 {\r
bf098bc5 213 ret = Load_ISO(iso_name, is_bin);\r
721cd396 214 if (ret == 0) {\r
bf098bc5 215 CD_Present = 1;\r
721cd396 216 Pico_mcd->scd.Status_CDD = READY;\r
217 }\r
cc68a136 218 }\r
219\r
bf098bc5 220 return ret;\r
cc68a136 221}\r
222\r
223\r
224void Stop_CD(void)\r
225{\r
cc68a136 226 Unload_ISO();\r
cc68a136 227 CD_Present = 0;\r
228}\r
229\r
230\r
231void Change_CD(void)\r
232{\r
233 if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();\r
234 else Open_Tray_CDD_cD();\r
235}\r
236\r
237\r
238int Get_Status_CDD_c0(void)\r
239{\r
c459aefd 240 cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r
cc68a136 241\r
242 // Clear immediat status\r
243 if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)\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) == 0x0700)\r
246 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r
247 else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)\r
248 Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r
249\r
51a902ae 250 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 251\r
252 return 0;\r
253}\r
254\r
255\r
256int Stop_CDD_c1(void)\r
257{\r
258 CHECK_TRAY_OPEN\r
259\r
260 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
261\r
262 if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;\r
263 else Pico_mcd->scd.Status_CDD = NOCD;\r
264 Pico_mcd->cdd.Status = 0x0000;\r
265\r
266 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r
267\r
268 Pico_mcd->cdd.Minute = 0;\r
269 Pico_mcd->cdd.Seconde = 0;\r
270 Pico_mcd->cdd.Frame = 0;\r
271 Pico_mcd->cdd.Ext = 0;\r
272\r
51a902ae 273 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 274\r
275 return 0;\r
276}\r
277\r
278\r
279int Get_Pos_CDD_c20(void)\r
280{\r
281 _msf MSF;\r
282\r
c459aefd 283 cdprintf("command 200 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r
cc68a136 284\r
285 CHECK_TRAY_OPEN\r
286\r
287 Pico_mcd->cdd.Status &= 0xFF;\r
288 if (!CD_Present)\r
289 {\r
290 Pico_mcd->scd.Status_CDD = NOCD;\r
291 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
292 }\r
293// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
294 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
295\r
c459aefd 296 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r
cc68a136 297\r
298 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r
299\r
300 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r
301 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r
302 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r
303 Pico_mcd->cdd.Ext = 0;\r
304\r
51a902ae 305 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 306\r
307 return 0;\r
308}\r
309\r
310\r
311int Get_Track_Pos_CDD_c21(void)\r
312{\r
313 int elapsed_time;\r
314 _msf MSF;\r
315\r
316 cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r
317\r
318 CHECK_TRAY_OPEN\r
319\r
320 Pico_mcd->cdd.Status &= 0xFF;\r
321 if (!CD_Present)\r
322 {\r
323 Pico_mcd->scd.Status_CDD = NOCD;\r
324 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
325 }\r
326// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
327 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
328\r
329 elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));\r
330 LBA_to_MSF(elapsed_time - 150, &MSF);\r
331\r
c459aefd 332 cdprintf(" elapsed = %d", elapsed_time);\r
cc68a136 333\r
334 Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r
335 Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r
336 Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r
337 Pico_mcd->cdd.Ext = 0;\r
338\r
51a902ae 339 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 340\r
341 return 0;\r
342}\r
343\r
344\r
345int Get_Current_Track_CDD_c22(void)\r
346{\r
c459aefd 347 cdprintf("Status CDD = %.4X Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r
cc68a136 348\r
349 CHECK_TRAY_OPEN\r
350\r
351 Pico_mcd->cdd.Status &= 0xFF;\r
352 if (!CD_Present)\r
353 {\r
354 Pico_mcd->scd.Status_CDD = NOCD;\r
355 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
356 }\r
357// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
358 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
359\r
360 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r
361\r
362 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r
363 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
364 Pico_mcd->cdd.Seconde = 0;\r
365 Pico_mcd->cdd.Frame = 0;\r
366 Pico_mcd->cdd.Ext = 0;\r
367\r
51a902ae 368 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 369\r
370 return 0;\r
371}\r
372\r
373\r
374int Get_Total_Lenght_CDD_c23(void)\r
375{\r
376 CHECK_TRAY_OPEN\r
377\r
378 Pico_mcd->cdd.Status &= 0xFF;\r
379 if (!CD_Present)\r
380 {\r
381 Pico_mcd->scd.Status_CDD = NOCD;\r
382 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
383 }\r
384// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
385 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
386\r
75736070 387 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.M);\r
388 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.S);\r
389 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[Pico_mcd->TOC.Last_Track].MSF.F);\r
cc68a136 390 Pico_mcd->cdd.Ext = 0;\r
391\r
51a902ae 392 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 393\r
394 return 0;\r
395}\r
396\r
397\r
398int Get_First_Last_Track_CDD_c24(void)\r
399{\r
400 CHECK_TRAY_OPEN\r
401\r
402 Pico_mcd->cdd.Status &= 0xFF;\r
403 if (!CD_Present)\r
404 {\r
405 Pico_mcd->scd.Status_CDD = NOCD;\r
406 }\r
407// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
408 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
409\r
75736070 410 Pico_mcd->cdd.Minute = INT_TO_BCDW(1);\r
411 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Last_Track);\r
cc68a136 412 Pico_mcd->cdd.Frame = 0;\r
413 Pico_mcd->cdd.Ext = 0;\r
414\r
51a902ae 415 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 416\r
417 return 0;\r
418}\r
419\r
420\r
421int Get_Track_Adr_CDD_c25(void)\r
422{\r
423 int track_number;\r
424\r
425 CHECK_TRAY_OPEN\r
426\r
427 // track number in TC4 & TC5\r
428\r
429 track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r
430\r
431 Pico_mcd->cdd.Status &= 0xFF;\r
432 if (!CD_Present)\r
433 {\r
434 Pico_mcd->scd.Status_CDD = NOCD;\r
435 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
436 }\r
437// else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
438 Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r
439\r
75736070 440 if (track_number > Pico_mcd->TOC.Last_Track) track_number = Pico_mcd->TOC.Last_Track;\r
441 else if (track_number < 1) track_number = 1;\r
cc68a136 442\r
75736070 443 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.M);\r
444 Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.S);\r
445 Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->TOC.Tracks[track_number - 1].MSF.F);\r
cc68a136 446 Pico_mcd->cdd.Ext = track_number % 10;\r
447\r
75736070 448 if (track_number == 1) Pico_mcd->cdd.Frame |= 0x0800; // data track\r
cc68a136 449\r
51a902ae 450 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 451 return 0;\r
452}\r
453\r
454\r
455int Play_CDD_c3(void)\r
456{\r
457 _msf MSF;\r
458 int delay, new_lba;\r
459\r
460 CHECK_TRAY_OPEN\r
461 CHECK_CD_PRESENT\r
462\r
463 // MSF of the track to play in TC buffer\r
464\r
465 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r
466 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r
467 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r
468\r
469 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r
470\r
471 new_lba = MSF_to_LBA(&MSF);\r
472 delay = new_lba - Pico_mcd->scd.Cur_LBA;\r
473 if (delay < 0) delay = -delay;\r
474 delay >>= 12;\r
475\r
476 Pico_mcd->scd.Cur_LBA = new_lba;\r
477 CDC_Update_Header();\r
478\r
c459aefd 479 cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r
cc68a136 480\r
481 if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;\r
482\r
483 Pico_mcd->scd.Status_CDD = PLAYING;\r
484 Pico_mcd->cdd.Status = 0x0102;\r
485// Pico_mcd->cdd.Status = COMM_OK;\r
486\r
51a902ae 487 if (Pico_mcd->scd.File_Add_Delay == 0) Pico_mcd->scd.File_Add_Delay = delay;\r
cc68a136 488\r
75736070 489 if (Pico_mcd->scd.Cur_Track == 1)\r
cc68a136 490 {\r
491 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r
492 }\r
493 else\r
494 {\r
495 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
496 //CD_Audio_Starting = 1;\r
cc68a136 497 FILE_Play_CD_LBA();\r
cc68a136 498 }\r
499\r
500 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r
501 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
502 Pico_mcd->cdd.Seconde = 0;\r
503 Pico_mcd->cdd.Frame = 0;\r
504 Pico_mcd->cdd.Ext = 0;\r
505\r
506 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r
507\r
51a902ae 508 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 509 return 0;\r
510}\r
511\r
512\r
513int Seek_CDD_c4(void)\r
514{\r
515 _msf MSF;\r
516\r
517 CHECK_TRAY_OPEN\r
518 CHECK_CD_PRESENT\r
519\r
520 // MSF to seek in TC buffer\r
521\r
522 MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r
523 MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r
524 MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r
525\r
526 Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r
527 Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);\r
528 CDC_Update_Header();\r
529\r
530 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
531\r
532 Pico_mcd->scd.Status_CDD = READY;\r
533 Pico_mcd->cdd.Status = 0x0200;\r
534\r
535 // DATA ?\r
75736070 536 if (Pico_mcd->scd.Cur_Track == 1)\r
cc68a136 537 Pico_mcd->s68k_regs[0x36] |= 0x01;\r
538 else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
539\r
540 Pico_mcd->cdd.Minute = 0;\r
541 Pico_mcd->cdd.Seconde = 0;\r
542 Pico_mcd->cdd.Frame = 0;\r
543 Pico_mcd->cdd.Ext = 0;\r
544\r
51a902ae 545 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 546\r
547 return 0;\r
548}\r
549\r
550\r
551int Pause_CDD_c6(void)\r
552{\r
553 CHECK_TRAY_OPEN\r
554 CHECK_CD_PRESENT\r
555\r
556 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data\r
557\r
558 Pico_mcd->scd.Status_CDD = READY;\r
559 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r
560\r
561 Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r
562\r
563 Pico_mcd->cdd.Minute = 0;\r
564 Pico_mcd->cdd.Seconde = 0;\r
565 Pico_mcd->cdd.Frame = 0;\r
566 Pico_mcd->cdd.Ext = 0;\r
567\r
51a902ae 568 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 569\r
570 return 0;\r
571}\r
572\r
573\r
574int Resume_CDD_c7(void)\r
575{\r
576 CHECK_TRAY_OPEN\r
577 CHECK_CD_PRESENT\r
578\r
579 Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r
580\r
581#ifdef DEBUG_CD\r
582 {\r
583 _msf MSF;\r
584 LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r
c459aefd 585 cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r
cc68a136 586 }\r
587#endif\r
588\r
589 Pico_mcd->scd.Status_CDD = PLAYING;\r
590 Pico_mcd->cdd.Status = 0x0102;\r
591\r
75736070 592 if (Pico_mcd->scd.Cur_Track == 1)\r
cc68a136 593 {\r
594 Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r
595 }\r
596 else\r
597 {\r
598 Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r
599 //CD_Audio_Starting = 1;\r
cc68a136 600 FILE_Play_CD_LBA();\r
cc68a136 601 }\r
602\r
603 if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r
604 else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
605 Pico_mcd->cdd.Seconde = 0;\r
606 Pico_mcd->cdd.Frame = 0;\r
607 Pico_mcd->cdd.Ext = 0;\r
608\r
609 Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r
610\r
51a902ae 611 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 612 return 0;\r
613}\r
614\r
615\r
bf098bc5 616int Fast_Foward_CDD_c8(void)\r
cc68a136 617{\r
618 CHECK_TRAY_OPEN\r
619 CHECK_CD_PRESENT\r
620\r
621 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
622\r
623 Pico_mcd->scd.Status_CDD = FAST_FOW;\r
624 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r
625\r
626 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
627 Pico_mcd->cdd.Seconde = 0;\r
628 Pico_mcd->cdd.Frame = 0;\r
629 Pico_mcd->cdd.Ext = 0;\r
630\r
51a902ae 631 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 632\r
633 return 0;\r
634}\r
635\r
636\r
bf098bc5 637int Fast_Rewind_CDD_c9(void)\r
cc68a136 638{\r
639 CHECK_TRAY_OPEN\r
640 CHECK_CD_PRESENT\r
641\r
642 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
643\r
644 Pico_mcd->scd.Status_CDD = FAST_REV;\r
645 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r
646\r
647 Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r
648 Pico_mcd->cdd.Seconde = 0;\r
649 Pico_mcd->cdd.Frame = 0;\r
650 Pico_mcd->cdd.Ext = 0;\r
651\r
51a902ae 652 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 653\r
654 return 0;\r
655}\r
656\r
657\r
658int Close_Tray_CDD_cC(void)\r
659{\r
721cd396 660 CD_Present = 0;\r
cc68a136 661 //Clear_Sound_Buffer();\r
662\r
663 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
664\r
721cd396 665 printf("tray close\n");\r
cc68a136 666\r
721cd396 667 if (PicoMCDcloseTray != NULL)\r
668 CD_Present = PicoMCDcloseTray();\r
cc68a136 669\r
721cd396 670 Pico_mcd->scd.Status_CDD = CD_Present ? STOPPED : NOCD;\r
671 Pico_mcd->cdd.Status = 0x0000;\r
cc68a136 672\r
721cd396 673 Pico_mcd->cdd.Minute = 0;\r
674 Pico_mcd->cdd.Seconde = 0;\r
675 Pico_mcd->cdd.Frame = 0;\r
676 Pico_mcd->cdd.Ext = 0;\r
cc68a136 677\r
51a902ae 678 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 679\r
680 return 0;\r
681}\r
682\r
683\r
684int Open_Tray_CDD_cD(void)\r
685{\r
686 CHECK_TRAY_OPEN\r
687\r
688 Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r
689\r
721cd396 690 printf("tray open\n");\r
691\r
cc68a136 692 Unload_ISO();\r
cc68a136 693 CD_Present = 0;\r
694\r
721cd396 695 if (PicoMCDopenTray != NULL)\r
696 PicoMCDopenTray();\r
697\r
cc68a136 698 Pico_mcd->scd.Status_CDD = TRAY_OPEN;\r
699 Pico_mcd->cdd.Status = 0x0E00;\r
700\r
701 Pico_mcd->cdd.Minute = 0;\r
702 Pico_mcd->cdd.Seconde = 0;\r
703 Pico_mcd->cdd.Frame = 0;\r
704 Pico_mcd->cdd.Ext = 0;\r
705\r
51a902ae 706 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 707\r
708 return 0;\r
709}\r
710\r
711\r
712int CDD_cA(void)\r
713{\r
714 CHECK_TRAY_OPEN\r
715 CHECK_CD_PRESENT\r
716\r
717 Pico_mcd->scd.Status_CDC &= ~1;\r
718\r
719 Pico_mcd->scd.Status_CDD = READY;\r
720 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r
721\r
722 Pico_mcd->cdd.Minute = 0;\r
723 Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);\r
724 Pico_mcd->cdd.Frame = INT_TO_BCDW(1);\r
725 Pico_mcd->cdd.Ext = 0;\r
726\r
51a902ae 727 Pico_mcd->scd.CDD_Complete = 1;\r
cc68a136 728\r
729 return 0;\r
730}\r
731\r
732\r
733int CDD_Def(void)\r
734{\r
735 Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r
736\r
737 Pico_mcd->cdd.Minute = 0;\r
738 Pico_mcd->cdd.Seconde = 0;\r
739 Pico_mcd->cdd.Frame = 0;\r
740 Pico_mcd->cdd.Ext = 0;\r
741\r
742 return 0;\r
743}\r
744\r
745\r
fast MegaDrive/MegaCD/32X emulator