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