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1 | #include <stdio.h>\r |
2 | #include "cd_sys.h"\r |
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3 | #include "cd_file.h"\r |
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4 | \r |
5 | #include "../PicoInt.h"\r |
6 | \r |
7 | #define cdprintf printf\r |
8 | //#define cdprintf(x...)\r |
9 | \r |
10 | #define TRAY_OPEN 0x0500 // TRAY OPEN CDD status\r |
11 | #define NOCD 0x0000 // CD removed CDD status\r |
12 | #define STOPPED 0x0900 // STOPPED CDD status (happen after stop or close tray command)\r |
13 | #define READY 0x0400 // READY CDD status (also used for seeking)\r |
14 | #define FAST_FOW 0x0300 // FAST FORWARD track CDD status\r |
15 | #define FAST_REV 0x10300 // FAST REVERSE track CDD status\r |
16 | #define PLAYING 0x0100 // PLAYING audio track CDD status\r |
17 | \r |
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18 | \r |
19 | /*\r |
20 | int CDDA_Enable;\r |
21 | \r |
22 | int CD_Audio_Buffer_L[8192];\r |
23 | int CD_Audio_Buffer_R[8192];\r |
24 | int CD_Audio_Buffer_Read_Pos = 0;\r |
25 | int CD_Audio_Buffer_Write_Pos = 2000;\r |
26 | int CD_Audio_Starting;\r |
27 | */\r |
28 | \r |
29 | static int CD_Present = 0;\r |
30 | int CD_Timer_Counter = 0; // TODO: check refs\r |
31 | \r |
32 | static int CDD_Complete;\r |
33 | \r |
34 | static int File_Add_Delay = 0;\r |
35 | \r |
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36 | \r |
37 | \r |
38 | #define CHECK_TRAY_OPEN \\r |
39 | if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) \\r |
40 | { \\r |
41 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \\r |
42 | \\r |
43 | Pico_mcd->cdd.Minute = 0; \\r |
44 | Pico_mcd->cdd.Seconde = 0; \\r |
45 | Pico_mcd->cdd.Frame = 0; \\r |
46 | Pico_mcd->cdd.Ext = 0; \\r |
47 | \\r |
48 | CDD_Complete = 1; \\r |
49 | \\r |
50 | return 2; \\r |
51 | }\r |
52 | \r |
53 | \r |
54 | #define CHECK_CD_PRESENT \\r |
55 | if (!CD_Present) \\r |
56 | { \\r |
57 | Pico_mcd->scd.Status_CDD = NOCD; \\r |
58 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD; \\r |
59 | \\r |
60 | Pico_mcd->cdd.Minute = 0; \\r |
61 | Pico_mcd->cdd.Seconde = 0; \\r |
62 | Pico_mcd->cdd.Frame = 0; \\r |
63 | Pico_mcd->cdd.Ext = 0; \\r |
64 | \\r |
65 | CDD_Complete = 1; \\r |
66 | \\r |
67 | return 3; \\r |
68 | }\r |
69 | \r |
70 | \r |
71 | #if 0\r |
72 | static void MSB2DWORD(unsigned int *d, unsigned char *b)\r |
73 | {\r |
74 | unsigned int retVal;\r |
75 | \r |
76 | retVal = (unsigned int )b[0];\r |
77 | retVal = (retVal<<8) + (unsigned int )b[1];\r |
78 | retVal = (retVal<<8) + (unsigned int )b[2];\r |
79 | retVal = (retVal<<8) + (unsigned int )b[3];\r |
80 | \r |
81 | *d = retVal;\r |
82 | }\r |
83 | #endif\r |
84 | \r |
85 | static int MSF_to_LBA(_msf *MSF)\r |
86 | {\r |
87 | return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;\r |
88 | }\r |
89 | \r |
90 | \r |
91 | void LBA_to_MSF(int lba, _msf *MSF)\r |
92 | {\r |
93 | if (lba < -150) lba = 0;\r |
94 | else lba += 150;\r |
95 | MSF->M = lba / (60 * 75);\r |
96 | MSF->S = (lba / 75) % 60;\r |
97 | MSF->F = lba % 75;\r |
98 | }\r |
99 | \r |
100 | \r |
101 | static unsigned int MSF_to_Track(_msf *MSF)\r |
102 | {\r |
103 | int i, Start, Cur;\r |
104 | \r |
105 | Start = (MSF->M << 16) + (MSF->S << 8) + MSF->F;\r |
106 | \r |
107 | for(i = Pico_mcd->scd.TOC.First_Track; i <= (Pico_mcd->scd.TOC.Last_Track + 1); i++)\r |
108 | {\r |
109 | Cur = Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.M << 16;\r |
110 | Cur += Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.S << 8;\r |
111 | Cur += Pico_mcd->scd.TOC.Tracks[i - Pico_mcd->scd.TOC.First_Track].MSF.F;\r |
112 | \r |
113 | if (Cur > Start) break;\r |
114 | }\r |
115 | \r |
116 | --i;\r |
117 | \r |
118 | if (i > Pico_mcd->scd.TOC.Last_Track) return 100;\r |
119 | if (i < Pico_mcd->scd.TOC.First_Track) i = Pico_mcd->scd.TOC.First_Track;\r |
120 | \r |
121 | return (unsigned) i;\r |
122 | }\r |
123 | \r |
124 | \r |
125 | static unsigned int LBA_to_Track(int lba)\r |
126 | {\r |
127 | _msf MSF;\r |
128 | \r |
129 | LBA_to_MSF(lba, &MSF);\r |
130 | return MSF_to_Track(&MSF);\r |
131 | }\r |
132 | \r |
133 | \r |
134 | static void Track_to_MSF(int track, _msf *MSF)\r |
135 | {\r |
136 | if (track < Pico_mcd->scd.TOC.First_Track) track = Pico_mcd->scd.TOC.First_Track;\r |
137 | else if (track > Pico_mcd->scd.TOC.Last_Track) track = Pico_mcd->scd.TOC.Last_Track;\r |
138 | \r |
139 | MSF->M = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.M;\r |
140 | MSF->S = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.S;\r |
141 | MSF->F = Pico_mcd->scd.TOC.Tracks[track - Pico_mcd->scd.TOC.First_Track].MSF.F;\r |
142 | }\r |
143 | \r |
144 | \r |
145 | int Track_to_LBA(int track)\r |
146 | {\r |
147 | _msf MSF;\r |
148 | \r |
149 | Track_to_MSF(track, &MSF);\r |
150 | return MSF_to_LBA(&MSF);\r |
151 | }\r |
152 | \r |
153 | \r |
154 | void Check_CD_Command(void)\r |
155 | {\r |
156 | cdprintf("CHECK CD COMMAND\n");\r |
157 | \r |
158 | // Check CDD\r |
159 | \r |
160 | if (CDD_Complete)\r |
161 | {\r |
162 | CDD_Complete = 0;\r |
163 | \r |
164 | CDD_Export_Status();\r |
165 | }\r |
166 | \r |
167 | // Check CDC\r |
168 | \r |
169 | if (Pico_mcd->scd.Status_CDC & 1) // CDC is reading data ...\r |
170 | {\r |
171 | cdprintf("Sending a read command\n");\r |
172 | \r |
173 | // DATA ?\r |
174 | if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)\r |
175 | Pico_mcd->s68k_regs[0x36] |= 0x01;\r |
176 | else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
177 | \r |
178 | if (File_Add_Delay == 0)\r |
179 | {\r |
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180 | FILE_Read_One_LBA_CDC();\r |
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181 | }\r |
182 | else File_Add_Delay--;\r |
183 | }\r |
184 | \r |
185 | if (Pico_mcd->scd.Status_CDD == FAST_FOW)\r |
186 | {\r |
187 | Pico_mcd->scd.Cur_LBA += 10;\r |
188 | CDC_Update_Header();\r |
189 | \r |
190 | }\r |
191 | else if (Pico_mcd->scd.Status_CDD == FAST_REV)\r |
192 | {\r |
193 | Pico_mcd->scd.Cur_LBA -= 10;\r |
194 | if (Pico_mcd->scd.Cur_LBA < -150) Pico_mcd->scd.Cur_LBA = -150;\r |
195 | CDC_Update_Header();\r |
196 | }\r |
197 | }\r |
198 | \r |
199 | \r |
200 | int Init_CD_Driver(void)\r |
201 | {\r |
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202 | FILE_Init();\r |
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203 | \r |
204 | return 0;\r |
205 | }\r |
206 | \r |
207 | \r |
208 | void End_CD_Driver(void)\r |
209 | {\r |
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210 | FILE_End();\r |
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211 | }\r |
212 | \r |
213 | \r |
214 | void Reset_CD(void)\r |
215 | {\r |
216 | Pico_mcd->scd.Cur_Track = 0;\r |
217 | Pico_mcd->scd.Cur_LBA = -150;\r |
218 | Pico_mcd->scd.Status_CDD = READY;\r |
219 | CDD_Complete = 0;\r |
220 | }\r |
221 | \r |
222 | \r |
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223 | int Insert_CD(char *iso_name, int is_bin)\r |
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224 | {\r |
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225 | int ret = 0;\r |
226 | \r |
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227 | // memset(CD_Audio_Buffer_L, 0, 4096 * 4);\r |
228 | // memset(CD_Audio_Buffer_R, 0, 4096 * 4);\r |
229 | \r |
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230 | CD_Present = 0;\r |
231 | \r |
232 | if (iso_name != NULL)\r |
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233 | {\r |
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234 | ret = Load_ISO(iso_name, is_bin);\r |
235 | if (ret == 0)\r |
236 | CD_Present = 1;\r |
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237 | }\r |
238 | \r |
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239 | return ret;\r |
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240 | }\r |
241 | \r |
242 | \r |
243 | void Stop_CD(void)\r |
244 | {\r |
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245 | Unload_ISO();\r |
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246 | CD_Present = 0;\r |
247 | }\r |
248 | \r |
249 | \r |
250 | void Change_CD(void)\r |
251 | {\r |
252 | if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();\r |
253 | else Open_Tray_CDD_cD();\r |
254 | }\r |
255 | \r |
256 | \r |
257 | int Get_Status_CDD_c0(void)\r |
258 | {\r |
259 | cdprintf("Status command : Cur LBA = %d\n", Pico_mcd->scd.Cur_LBA);\r |
260 | \r |
261 | // Clear immediat status\r |
262 | if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0200)\r |
263 | Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r |
264 | else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0700)\r |
265 | Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r |
266 | else if ((Pico_mcd->cdd.Status & 0x0F00) == 0x0E00)\r |
267 | Pico_mcd->cdd.Status = (Pico_mcd->scd.Status_CDD & 0xFF00) | (Pico_mcd->cdd.Status & 0x00FF);\r |
268 | \r |
269 | CDD_Complete = 1;\r |
270 | \r |
271 | return 0;\r |
272 | }\r |
273 | \r |
274 | \r |
275 | int Stop_CDD_c1(void)\r |
276 | {\r |
277 | CHECK_TRAY_OPEN\r |
278 | \r |
279 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
280 | \r |
281 | if (CD_Present) Pico_mcd->scd.Status_CDD = STOPPED;\r |
282 | else Pico_mcd->scd.Status_CDD = NOCD;\r |
283 | Pico_mcd->cdd.Status = 0x0000;\r |
284 | \r |
285 | Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r |
286 | \r |
287 | Pico_mcd->cdd.Minute = 0;\r |
288 | Pico_mcd->cdd.Seconde = 0;\r |
289 | Pico_mcd->cdd.Frame = 0;\r |
290 | Pico_mcd->cdd.Ext = 0;\r |
291 | \r |
292 | CDD_Complete = 1;\r |
293 | \r |
294 | return 0;\r |
295 | }\r |
296 | \r |
297 | \r |
298 | int Get_Pos_CDD_c20(void)\r |
299 | {\r |
300 | _msf MSF;\r |
301 | \r |
302 | cdprintf("command 200 : Cur LBA = %d\n", Pico_mcd->scd.Cur_LBA);\r |
303 | \r |
304 | CHECK_TRAY_OPEN\r |
305 | \r |
306 | Pico_mcd->cdd.Status &= 0xFF;\r |
307 | if (!CD_Present)\r |
308 | {\r |
309 | Pico_mcd->scd.Status_CDD = NOCD;\r |
310 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
311 | }\r |
312 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
313 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
314 | \r |
315 | cdprintf("Status CDD = %.4X Status = %.4X\n", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r |
316 | \r |
317 | LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r |
318 | \r |
319 | Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r |
320 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r |
321 | Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r |
322 | Pico_mcd->cdd.Ext = 0;\r |
323 | \r |
324 | CDD_Complete = 1;\r |
325 | \r |
326 | return 0;\r |
327 | }\r |
328 | \r |
329 | \r |
330 | int Get_Track_Pos_CDD_c21(void)\r |
331 | {\r |
332 | int elapsed_time;\r |
333 | _msf MSF;\r |
334 | \r |
335 | cdprintf("command 201 : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);\r |
336 | \r |
337 | CHECK_TRAY_OPEN\r |
338 | \r |
339 | Pico_mcd->cdd.Status &= 0xFF;\r |
340 | if (!CD_Present)\r |
341 | {\r |
342 | Pico_mcd->scd.Status_CDD = NOCD;\r |
343 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
344 | }\r |
345 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
346 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
347 | \r |
348 | elapsed_time = Pico_mcd->scd.Cur_LBA - Track_to_LBA(LBA_to_Track(Pico_mcd->scd.Cur_LBA));\r |
349 | LBA_to_MSF(elapsed_time - 150, &MSF);\r |
350 | \r |
351 | cdprintf(" elapsed = %d\n", elapsed_time);\r |
352 | \r |
353 | Pico_mcd->cdd.Minute = INT_TO_BCDW(MSF.M);\r |
354 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(MSF.S);\r |
355 | Pico_mcd->cdd.Frame = INT_TO_BCDW(MSF.F);\r |
356 | Pico_mcd->cdd.Ext = 0;\r |
357 | \r |
358 | CDD_Complete = 1;\r |
359 | \r |
360 | return 0;\r |
361 | }\r |
362 | \r |
363 | \r |
364 | int Get_Current_Track_CDD_c22(void)\r |
365 | {\r |
366 | cdprintf("Status CDD = %.4X Status = %.4X\n", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);\r |
367 | \r |
368 | CHECK_TRAY_OPEN\r |
369 | \r |
370 | Pico_mcd->cdd.Status &= 0xFF;\r |
371 | if (!CD_Present)\r |
372 | {\r |
373 | Pico_mcd->scd.Status_CDD = NOCD;\r |
374 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
375 | }\r |
376 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
377 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
378 | \r |
379 | Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r |
380 | \r |
381 | if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r |
382 | else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
383 | Pico_mcd->cdd.Seconde = 0;\r |
384 | Pico_mcd->cdd.Frame = 0;\r |
385 | Pico_mcd->cdd.Ext = 0;\r |
386 | \r |
387 | CDD_Complete = 1;\r |
388 | \r |
389 | return 0;\r |
390 | }\r |
391 | \r |
392 | \r |
393 | int Get_Total_Lenght_CDD_c23(void)\r |
394 | {\r |
395 | CHECK_TRAY_OPEN\r |
396 | \r |
397 | Pico_mcd->cdd.Status &= 0xFF;\r |
398 | if (!CD_Present)\r |
399 | {\r |
400 | Pico_mcd->scd.Status_CDD = NOCD;\r |
401 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
402 | }\r |
403 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
404 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
405 | \r |
406 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -\r |
407 | Pico_mcd->scd.TOC.First_Track + 1].MSF.M);\r |
408 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -\r |
409 | Pico_mcd->scd.TOC.First_Track + 1].MSF.S);\r |
410 | Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.TOC.Last_Track -\r |
411 | Pico_mcd->scd.TOC.First_Track + 1].MSF.F);\r |
412 | Pico_mcd->cdd.Ext = 0;\r |
413 | \r |
414 | // FIXME: remove\r |
bf098bc5 |
415 | //Pico_mcd->cdd.Seconde = 2;\r |
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416 | \r |
417 | CDD_Complete = 1;\r |
418 | \r |
419 | return 0;\r |
420 | }\r |
421 | \r |
422 | \r |
423 | int Get_First_Last_Track_CDD_c24(void)\r |
424 | {\r |
425 | CHECK_TRAY_OPEN\r |
426 | \r |
427 | Pico_mcd->cdd.Status &= 0xFF;\r |
428 | if (!CD_Present)\r |
429 | {\r |
430 | Pico_mcd->scd.Status_CDD = NOCD;\r |
431 | }\r |
432 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
433 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
434 | \r |
435 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.First_Track);\r |
436 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Last_Track);\r |
437 | Pico_mcd->cdd.Frame = 0;\r |
438 | Pico_mcd->cdd.Ext = 0;\r |
439 | \r |
440 | // FIXME: remove\r |
bf098bc5 |
441 | //Pico_mcd->cdd.Minute = Pico_mcd->cdd.Seconde = 1;\r |
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442 | \r |
443 | CDD_Complete = 1;\r |
444 | \r |
445 | return 0;\r |
446 | }\r |
447 | \r |
448 | \r |
449 | int Get_Track_Adr_CDD_c25(void)\r |
450 | {\r |
451 | int track_number;\r |
452 | \r |
453 | CHECK_TRAY_OPEN\r |
454 | \r |
455 | // track number in TC4 & TC5\r |
456 | \r |
457 | track_number = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r |
458 | \r |
459 | Pico_mcd->cdd.Status &= 0xFF;\r |
460 | if (!CD_Present)\r |
461 | {\r |
462 | Pico_mcd->scd.Status_CDD = NOCD;\r |
463 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
464 | }\r |
465 | // else if (!(CDC.CTRL.B.B0 & 0x80)) Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
466 | Pico_mcd->cdd.Status |= Pico_mcd->scd.Status_CDD;\r |
467 | \r |
468 | if (track_number > Pico_mcd->scd.TOC.Last_Track) track_number = Pico_mcd->scd.TOC.Last_Track;\r |
469 | else if (track_number < Pico_mcd->scd.TOC.First_Track) track_number = Pico_mcd->scd.TOC.First_Track;\r |
470 | \r |
471 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.M);\r |
472 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.S);\r |
473 | Pico_mcd->cdd.Frame = INT_TO_BCDW(Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].MSF.F);\r |
474 | Pico_mcd->cdd.Ext = track_number % 10;\r |
475 | \r |
476 | if (Pico_mcd->scd.TOC.Tracks[track_number - Pico_mcd->scd.TOC.First_Track].Type) Pico_mcd->cdd.Frame |= 0x0800;\r |
477 | \r |
478 | CDD_Complete = 1;\r |
479 | return 0;\r |
480 | }\r |
481 | \r |
482 | \r |
483 | int Play_CDD_c3(void)\r |
484 | {\r |
485 | _msf MSF;\r |
486 | int delay, new_lba;\r |
487 | \r |
488 | CHECK_TRAY_OPEN\r |
489 | CHECK_CD_PRESENT\r |
490 | \r |
491 | // MSF of the track to play in TC buffer\r |
492 | \r |
493 | MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r |
494 | MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r |
495 | MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r |
496 | \r |
497 | Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r |
498 | \r |
499 | new_lba = MSF_to_LBA(&MSF);\r |
500 | delay = new_lba - Pico_mcd->scd.Cur_LBA;\r |
501 | if (delay < 0) delay = -delay;\r |
502 | delay >>= 12;\r |
503 | \r |
504 | Pico_mcd->scd.Cur_LBA = new_lba;\r |
505 | CDC_Update_Header();\r |
506 | \r |
507 | cdprintf("Read : Cur LBA = %d, M=%d, S=%d, F=%d\n", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r |
508 | \r |
509 | if (Pico_mcd->scd.Status_CDD != PLAYING) delay += 20;\r |
510 | \r |
511 | Pico_mcd->scd.Status_CDD = PLAYING;\r |
512 | Pico_mcd->cdd.Status = 0x0102;\r |
513 | // Pico_mcd->cdd.Status = COMM_OK;\r |
514 | \r |
515 | if (File_Add_Delay == 0) File_Add_Delay = delay;\r |
516 | \r |
517 | if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)\r |
518 | {\r |
519 | Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r |
520 | }\r |
521 | else\r |
522 | {\r |
523 | Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
524 | //CD_Audio_Starting = 1;\r |
cc68a136 |
525 | FILE_Play_CD_LBA();\r |
cc68a136 |
526 | }\r |
527 | \r |
528 | if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r |
529 | else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
530 | Pico_mcd->cdd.Seconde = 0;\r |
531 | Pico_mcd->cdd.Frame = 0;\r |
532 | Pico_mcd->cdd.Ext = 0;\r |
533 | \r |
534 | Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r |
535 | \r |
536 | CDD_Complete = 1;\r |
537 | return 0;\r |
538 | }\r |
539 | \r |
540 | \r |
541 | int Seek_CDD_c4(void)\r |
542 | {\r |
543 | _msf MSF;\r |
544 | \r |
545 | CHECK_TRAY_OPEN\r |
546 | CHECK_CD_PRESENT\r |
547 | \r |
548 | // MSF to seek in TC buffer\r |
549 | \r |
550 | MSF.M = (Pico_mcd->s68k_regs[0x38+10+2] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+3] & 0xF);\r |
551 | MSF.S = (Pico_mcd->s68k_regs[0x38+10+4] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+5] & 0xF);\r |
552 | MSF.F = (Pico_mcd->s68k_regs[0x38+10+6] & 0xF) * 10 + (Pico_mcd->s68k_regs[0x38+10+7] & 0xF);\r |
553 | \r |
554 | Pico_mcd->scd.Cur_Track = MSF_to_Track(&MSF);\r |
555 | Pico_mcd->scd.Cur_LBA = MSF_to_LBA(&MSF);\r |
556 | CDC_Update_Header();\r |
557 | \r |
558 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
559 | \r |
560 | Pico_mcd->scd.Status_CDD = READY;\r |
561 | Pico_mcd->cdd.Status = 0x0200;\r |
562 | \r |
563 | // DATA ?\r |
564 | if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)\r |
565 | Pico_mcd->s68k_regs[0x36] |= 0x01;\r |
566 | else Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
567 | \r |
568 | Pico_mcd->cdd.Minute = 0;\r |
569 | Pico_mcd->cdd.Seconde = 0;\r |
570 | Pico_mcd->cdd.Frame = 0;\r |
571 | Pico_mcd->cdd.Ext = 0;\r |
572 | \r |
573 | CDD_Complete = 1;\r |
574 | \r |
575 | return 0;\r |
576 | }\r |
577 | \r |
578 | \r |
579 | int Pause_CDD_c6(void)\r |
580 | {\r |
581 | CHECK_TRAY_OPEN\r |
582 | CHECK_CD_PRESENT\r |
583 | \r |
584 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read to start a new one if raw data\r |
585 | \r |
586 | Pico_mcd->scd.Status_CDD = READY;\r |
587 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r |
588 | \r |
589 | Pico_mcd->s68k_regs[0x36] |= 0x01; // Data bit set because stopped\r |
590 | \r |
591 | Pico_mcd->cdd.Minute = 0;\r |
592 | Pico_mcd->cdd.Seconde = 0;\r |
593 | Pico_mcd->cdd.Frame = 0;\r |
594 | Pico_mcd->cdd.Ext = 0;\r |
595 | \r |
596 | CDD_Complete = 1;\r |
597 | \r |
598 | return 0;\r |
599 | }\r |
600 | \r |
601 | \r |
602 | int Resume_CDD_c7(void)\r |
603 | {\r |
604 | CHECK_TRAY_OPEN\r |
605 | CHECK_CD_PRESENT\r |
606 | \r |
607 | Pico_mcd->scd.Cur_Track = LBA_to_Track(Pico_mcd->scd.Cur_LBA);\r |
608 | \r |
609 | #ifdef DEBUG_CD\r |
610 | {\r |
611 | _msf MSF;\r |
612 | LBA_to_MSF(Pico_mcd->scd.Cur_LBA, &MSF);\r |
613 | cdprintf("Resume read : Cur LBA = %d, M=%d, S=%d, F=%d\n", Pico_mcd->scd.Cur_LBA, MSF.M, MSF.S, MSF.F);\r |
614 | }\r |
615 | #endif\r |
616 | \r |
617 | Pico_mcd->scd.Status_CDD = PLAYING;\r |
618 | Pico_mcd->cdd.Status = 0x0102;\r |
619 | \r |
620 | if (Pico_mcd->scd.TOC.Tracks[Pico_mcd->scd.Cur_Track - Pico_mcd->scd.TOC.First_Track].Type)\r |
621 | {\r |
622 | Pico_mcd->s68k_regs[0x36] |= 0x01; // DATA\r |
623 | }\r |
624 | else\r |
625 | {\r |
626 | Pico_mcd->s68k_regs[0x36] &= ~0x01; // AUDIO\r |
627 | //CD_Audio_Starting = 1;\r |
cc68a136 |
628 | FILE_Play_CD_LBA();\r |
cc68a136 |
629 | }\r |
630 | \r |
631 | if (Pico_mcd->scd.Cur_Track == 100) Pico_mcd->cdd.Minute = 0x0A02;\r |
632 | else Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
633 | Pico_mcd->cdd.Seconde = 0;\r |
634 | Pico_mcd->cdd.Frame = 0;\r |
635 | Pico_mcd->cdd.Ext = 0;\r |
636 | \r |
637 | Pico_mcd->scd.Status_CDC |= 1; // Read data with CDC\r |
638 | \r |
639 | CDD_Complete = 1;\r |
640 | return 0;\r |
641 | }\r |
642 | \r |
643 | \r |
bf098bc5 |
644 | int Fast_Foward_CDD_c8(void)\r |
cc68a136 |
645 | {\r |
646 | CHECK_TRAY_OPEN\r |
647 | CHECK_CD_PRESENT\r |
648 | \r |
649 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
650 | \r |
651 | Pico_mcd->scd.Status_CDD = FAST_FOW;\r |
652 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r |
653 | \r |
654 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
655 | Pico_mcd->cdd.Seconde = 0;\r |
656 | Pico_mcd->cdd.Frame = 0;\r |
657 | Pico_mcd->cdd.Ext = 0;\r |
658 | \r |
659 | CDD_Complete = 1;\r |
660 | \r |
661 | return 0;\r |
662 | }\r |
663 | \r |
664 | \r |
bf098bc5 |
665 | int Fast_Rewind_CDD_c9(void)\r |
cc68a136 |
666 | {\r |
667 | CHECK_TRAY_OPEN\r |
668 | CHECK_CD_PRESENT\r |
669 | \r |
670 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
671 | \r |
672 | Pico_mcd->scd.Status_CDD = FAST_REV;\r |
673 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD | 2;\r |
674 | \r |
675 | Pico_mcd->cdd.Minute = INT_TO_BCDW(Pico_mcd->scd.Cur_Track);\r |
676 | Pico_mcd->cdd.Seconde = 0;\r |
677 | Pico_mcd->cdd.Frame = 0;\r |
678 | Pico_mcd->cdd.Ext = 0;\r |
679 | \r |
680 | CDD_Complete = 1;\r |
681 | \r |
682 | return 0;\r |
683 | }\r |
684 | \r |
685 | \r |
686 | int Close_Tray_CDD_cC(void)\r |
687 | {\r |
688 | //Clear_Sound_Buffer();\r |
689 | \r |
690 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
691 | \r |
692 | {\r |
693 | #if 0 // TODO\r |
694 | char new_iso[1024];\r |
695 | \r |
696 | memset(new_iso, 0, 1024);\r |
697 | \r |
698 | while (!Change_File_L(new_iso, Rom_Dir, "Load SegaCD image file", "SegaCD image file\0*.bin;*.iso;*.raw\0All files\0*.*\0\0", ""));\r |
699 | Reload_SegaCD(new_iso);\r |
700 | \r |
701 | CD_Present = 1;\r |
702 | #else\r |
703 | CD_Present = 0;\r |
704 | #endif\r |
705 | Pico_mcd->scd.Status_CDD = STOPPED;\r |
706 | Pico_mcd->cdd.Status = 0x0000;\r |
707 | \r |
708 | Pico_mcd->cdd.Minute = 0;\r |
709 | Pico_mcd->cdd.Seconde = 0;\r |
710 | Pico_mcd->cdd.Frame = 0;\r |
711 | Pico_mcd->cdd.Ext = 0;\r |
712 | }\r |
713 | \r |
714 | CDD_Complete = 1;\r |
715 | \r |
716 | return 0;\r |
717 | }\r |
718 | \r |
719 | \r |
720 | int Open_Tray_CDD_cD(void)\r |
721 | {\r |
722 | CHECK_TRAY_OPEN\r |
723 | \r |
724 | Pico_mcd->scd.Status_CDC &= ~1; // Stop CDC read\r |
725 | \r |
cc68a136 |
726 | Unload_ISO();\r |
cc68a136 |
727 | CD_Present = 0;\r |
728 | \r |
729 | Pico_mcd->scd.Status_CDD = TRAY_OPEN;\r |
730 | Pico_mcd->cdd.Status = 0x0E00;\r |
731 | \r |
732 | Pico_mcd->cdd.Minute = 0;\r |
733 | Pico_mcd->cdd.Seconde = 0;\r |
734 | Pico_mcd->cdd.Frame = 0;\r |
735 | Pico_mcd->cdd.Ext = 0;\r |
736 | \r |
737 | CDD_Complete = 1;\r |
738 | \r |
739 | return 0;\r |
740 | }\r |
741 | \r |
742 | \r |
743 | int CDD_cA(void)\r |
744 | {\r |
745 | CHECK_TRAY_OPEN\r |
746 | CHECK_CD_PRESENT\r |
747 | \r |
748 | Pico_mcd->scd.Status_CDC &= ~1;\r |
749 | \r |
750 | Pico_mcd->scd.Status_CDD = READY;\r |
751 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r |
752 | \r |
753 | Pico_mcd->cdd.Minute = 0;\r |
754 | Pico_mcd->cdd.Seconde = INT_TO_BCDW(1);\r |
755 | Pico_mcd->cdd.Frame = INT_TO_BCDW(1);\r |
756 | Pico_mcd->cdd.Ext = 0;\r |
757 | \r |
758 | CDD_Complete = 1;\r |
759 | \r |
760 | return 0;\r |
761 | }\r |
762 | \r |
763 | \r |
764 | int CDD_Def(void)\r |
765 | {\r |
766 | Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;\r |
767 | \r |
768 | Pico_mcd->cdd.Minute = 0;\r |
769 | Pico_mcd->cdd.Seconde = 0;\r |
770 | Pico_mcd->cdd.Frame = 0;\r |
771 | Pico_mcd->cdd.Ext = 0;\r |
772 | \r |
773 | return 0;\r |
774 | }\r |
775 | \r |
776 | \r |
777 | \r |
778 | \r |
779 | /***************************\r |
780 | * Others CD functions *\r |
781 | **************************/\r |
782 | \r |
783 | \r |
784 | // do we need them?\r |
785 | #if 0\r |
786 | void Write_CD_Audio(short *Buf, int rate, int channel, int lenght)\r |
787 | {\r |
788 | unsigned int lenght_src, lenght_dst;\r |
789 | unsigned int pos_src, pas_src;\r |
790 | \r |
791 | if (rate == 0) return;\r |
792 | if (Sound_Rate == 0) return;\r |
793 | \r |
794 | if (CD_Audio_Starting)\r |
795 | {\r |
796 | CD_Audio_Starting = 0;\r |
797 | memset(CD_Audio_Buffer_L, 0, 4096 * 4);\r |
798 | memset(CD_Audio_Buffer_R, 0, 4096 * 4);\r |
799 | CD_Audio_Buffer_Write_Pos = (CD_Audio_Buffer_Read_Pos + 2000) & 0xFFF;\r |
800 | }\r |
801 | \r |
802 | lenght_src = rate / 75; // 75th of a second\r |
803 | lenght_dst = Sound_Rate / 75; // 75th of a second\r |
804 | \r |
805 | pas_src = (lenght_src << 16) / lenght_dst;\r |
806 | pos_src = 0;\r |
807 | \r |
808 | #ifdef DEBUG_CD\r |
809 | fprintf(debug_SCD_file, "\n********* Write Pos = %d ", CD_Audio_Buffer_Write_Pos);\r |
810 | #endif\r |
811 | \r |
812 | if (channel == 2)\r |
813 | {\r |
814 | __asm\r |
815 | {\r |
816 | mov edi, CD_Audio_Buffer_Write_Pos\r |
817 | mov ebx, Buf\r |
818 | xor esi, esi\r |
819 | mov ecx, lenght_dst\r |
820 | xor eax, eax\r |
821 | mov edx, pas_src\r |
822 | dec ecx\r |
823 | jmp short loop_stereo\r |
824 | \r |
825 | align 16\r |
826 | \r |
827 | loop_stereo:\r |
828 | movsx eax, word ptr [ebx + esi * 4]\r |
829 | mov CD_Audio_Buffer_L[edi * 4], eax\r |
830 | movsx eax, word ptr [ebx + esi * 4 + 2]\r |
831 | mov CD_Audio_Buffer_R[edi * 4], eax\r |
832 | mov esi, dword ptr pos_src\r |
833 | inc edi\r |
834 | add esi, edx\r |
835 | and edi, 0xFFF\r |
836 | mov dword ptr pos_src, esi\r |
837 | shr esi, 16\r |
838 | dec ecx\r |
839 | jns short loop_stereo\r |
840 | \r |
841 | mov CD_Audio_Buffer_Write_Pos, edi\r |
842 | }\r |
843 | }\r |
844 | else\r |
845 | {\r |
846 | __asm\r |
847 | {\r |
848 | mov edi, CD_Audio_Buffer_Write_Pos\r |
849 | mov ebx, Buf\r |
850 | xor esi, esi\r |
851 | mov ecx, lenght_dst\r |
852 | xor eax, eax\r |
853 | mov edx, pas_src\r |
854 | dec ecx\r |
855 | jmp short loop_mono\r |
856 | \r |
857 | align 16\r |
858 | \r |
859 | loop_mono:\r |
860 | movsx eax, word ptr [ebx + esi * 2]\r |
861 | mov CD_Audio_Buffer_L[edi * 4], eax\r |
862 | mov CD_Audio_Buffer_R[edi * 4], eax\r |
863 | mov esi, dword ptr pos_src\r |
864 | inc edi\r |
865 | add esi, edx\r |
866 | and edi, 0xFFF\r |
867 | mov dword ptr pos_src, esi\r |
868 | shr esi, 16\r |
869 | dec ecx\r |
870 | jns short loop_mono\r |
871 | \r |
872 | mov CD_Audio_Buffer_Write_Pos, edi\r |
873 | }\r |
874 | }\r |
875 | \r |
876 | #ifdef DEBUG_CD\r |
877 | fprintf(debug_SCD_file, "Write Pos 2 = %d\n\n", CD_Audio_Buffer_Write_Pos);\r |
878 | #endif\r |
879 | }\r |
880 | \r |
881 | \r |
882 | void Update_CD_Audio(int **buf, int lenght)\r |
883 | {\r |
884 | int *Buf_L, *Buf_R;\r |
885 | int diff;\r |
886 | \r |
887 | Buf_L = buf[0];\r |
888 | Buf_R = buf[1];\r |
889 | \r |
890 | if (Pico_mcd->s68k_regs[0x36] & 0x01) return;\r |
891 | if (!(Pico_mcd->scd.Status_CDC & 1)) return;\r |
892 | if (CD_Audio_Starting) return;\r |
893 | \r |
894 | #ifdef DEBUG_CD\r |
895 | fprintf(debug_SCD_file, "\n********* Read Pos Normal = %d ", CD_Audio_Buffer_Read_Pos);\r |
896 | #endif\r |
897 | \r |
898 | if (CD_Audio_Buffer_Write_Pos < CD_Audio_Buffer_Read_Pos)\r |
899 | {\r |
900 | diff = CD_Audio_Buffer_Write_Pos + (4096) - CD_Audio_Buffer_Read_Pos;\r |
901 | }\r |
902 | else\r |
903 | {\r |
904 | diff = CD_Audio_Buffer_Write_Pos - CD_Audio_Buffer_Read_Pos;\r |
905 | }\r |
906 | \r |
907 | if (diff < 500) CD_Audio_Buffer_Read_Pos -= 2000;\r |
908 | else if (diff > 3500) CD_Audio_Buffer_Read_Pos += 2000;\r |
909 | \r |
910 | #ifdef DEBUG_CD\r |
911 | else fprintf(debug_SCD_file, " pas de modifs ");\r |
912 | #endif\r |
913 | \r |
914 | CD_Audio_Buffer_Read_Pos &= 0xFFF;\r |
915 | \r |
916 | #ifdef DEBUG_CD\r |
917 | fprintf(debug_SCD_file, "Read Pos = %d ", CD_Audio_Buffer_Read_Pos);\r |
918 | #endif\r |
919 | \r |
920 | if (CDDA_Enable)\r |
921 | {\r |
922 | __asm\r |
923 | {\r |
924 | mov ecx, lenght\r |
925 | mov esi, CD_Audio_Buffer_Read_Pos\r |
926 | mov edi, Buf_L\r |
927 | dec ecx\r |
928 | \r |
929 | loop_L:\r |
930 | mov eax, CD_Audio_Buffer_L[esi * 4]\r |
931 | add [edi], eax\r |
932 | inc esi\r |
933 | add edi, 4\r |
934 | and esi, 0xFFF\r |
935 | dec ecx\r |
936 | jns short loop_L\r |
937 | \r |
938 | mov ecx, lenght\r |
939 | mov esi, CD_Audio_Buffer_Read_Pos\r |
940 | mov edi, Buf_R\r |
941 | dec ecx\r |
942 | \r |
943 | loop_R:\r |
944 | mov eax, CD_Audio_Buffer_R[esi * 4]\r |
945 | add [edi], eax\r |
946 | inc esi\r |
947 | add edi, 4\r |
948 | and esi, 0xFFF\r |
949 | dec ecx\r |
950 | jns short loop_R\r |
951 | \r |
952 | mov CD_Audio_Buffer_Read_Pos, esi\r |
953 | }\r |
954 | }\r |
955 | else\r |
956 | {\r |
957 | CD_Audio_Buffer_Read_Pos += lenght;\r |
958 | CD_Audio_Buffer_Read_Pos &= 0xFFF;\r |
959 | }\r |
960 | \r |
961 | #ifdef DEBUG_CD\r |
962 | fprintf(debug_SCD_file, "Read Pos 2 = %d\n\n", CD_Audio_Buffer_Read_Pos);\r |
963 | #endif\r |
964 | }\r |
965 | #endif\r |
966 | \r |