cdrom: sync with upstream
[pcsx_rearmed.git] / libpcsxcore / cdrom.c
index d6ee520..7a25c57 100644 (file)
 
 cdrStruct cdr;
 static unsigned char *pTransfer;
+static s16 read_buf[CD_FRAMESIZE_RAW/2];
 
 /* CD-ROM magic numbers */
-#define CdlSync        0 /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
+#define CdlSync        0  /* nocash documentation : "Uh, actually, returns error code 40h = Invalid Command...?" */
 #define CdlNop         1
 #define CdlSetloc      2
 #define CdlPlay        3
@@ -83,12 +84,12 @@ static unsigned char *pTransfer;
 char *CmdName[0x100]= {
     "CdlSync",     "CdlNop",       "CdlSetloc",  "CdlPlay",
     "CdlForward",  "CdlBackward",  "CdlReadN",   "CdlStandby",
-    "CdlStop",     "CdlPause",     "CdlReset",   "CdlMute",
+    "CdlStop",     "CdlPause",     "CdlReset",    "CdlMute",
     "CdlDemute",   "CdlSetfilter", "CdlSetmode", "CdlGetparam",
     "CdlGetlocL",  "CdlGetlocP",   "CdlReadT",   "CdlGetTN",
     "CdlGetTD",    "CdlSeekL",     "CdlSeekP",   "CdlSetclock",
     "CdlGetclock", "CdlTest",      "CdlID",      "CdlReadS",
-    "CdlInit",    NULL,           "CDlReadToc", NULL
+    "CdlInit",     NULL,           "CDlReadToc", NULL
 };
 
 unsigned char Test04[] = { 0 };
@@ -382,7 +383,7 @@ static void ReadTrack(const u8 *time) {
 
        CDR_LOG("ReadTrack *** %02x:%02x:%02x\n", tmp[0], tmp[1], tmp[2]);
 
-       cdr.RErr = CDR_readTrack(tmp);
+       cdr.NoErr = CDR_readTrack(tmp);
        memcpy(cdr.Prev, tmp, 3);
 
        if (CheckSBI(time))
@@ -431,6 +432,10 @@ static void AddIrqQueue(unsigned short irq, unsigned long ecycle) {
 
 static void cdrPlayInterrupt_Autopause()
 {
+       u32 abs_lev_max = 0;
+       boolean abs_lev_chselect;
+       u32 i;
+
        if ((cdr.Mode & MODE_AUTOPAUSE) && cdr.TrackChanged) {
                CDR_LOG( "CDDA STOP\n" );
 
@@ -446,10 +451,19 @@ static void cdrPlayInterrupt_Autopause()
                StopCdda();
        }
        else if (((cdr.Mode & MODE_REPORT) || cdr.FastForward || cdr.FastBackward)) {
-
                cdr.Result[0] = cdr.StatP;
                cdr.Result[1] = cdr.subq.Track;
                cdr.Result[2] = cdr.subq.Index;
+               
+               abs_lev_chselect = cdr.subq.Absolute[1] & 0x01;
+               
+               /* 8 is a hack. For accuracy, it should be 588. */
+               for (i = 0; i < 8; i++)
+               {
+                       abs_lev_max = MAX_VALUE(abs_lev_max, abs(read_buf[i * 2 + abs_lev_chselect]));
+               }
+               abs_lev_max = MIN_VALUE(abs_lev_max, 32767);
+               abs_lev_max |= abs_lev_chselect << 15;
 
                if (cdr.subq.Absolute[2] & 0x10) {
                        cdr.Result[3] = cdr.subq.Relative[0];
@@ -462,8 +476,8 @@ static void cdrPlayInterrupt_Autopause()
                        cdr.Result[5] = cdr.subq.Absolute[2];
                }
 
-               cdr.Result[6] = 0;
-               cdr.Result[7] = 0;
+               cdr.Result[6] = abs_lev_max >> 0;
+               cdr.Result[7] = abs_lev_max >> 8;
 
                // Rayman: Logo freeze (resultready + dataready)
                cdr.ResultReady = 1;
@@ -490,7 +504,6 @@ void cdrPlayInterrupt()
                cdr.Seeked = SEEK_DONE;
                if (cdr.Irq == 0) {
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        setIrq();
                }
 
@@ -513,11 +526,18 @@ void cdrPlayInterrupt()
                StopCdda();
                cdr.TrackChanged = TRUE;
        }
+       else {
+               CDR_readCDDA(cdr.SetSectorPlay[0], cdr.SetSectorPlay[1], cdr.SetSectorPlay[2], (u8 *)read_buf);
+       }
 
        if (!cdr.Irq && !cdr.Stat && (cdr.Mode & (MODE_AUTOPAUSE|MODE_REPORT)))
                cdrPlayInterrupt_Autopause();
 
-       if (!cdr.Play) return;
+       if (CDR_readCDDA && !cdr.Muted && !Config.Cdda) {
+               cdrAttenuate(read_buf, CD_FRAMESIZE_RAW / 4, 1);
+               if (SPU_playCDDAchannel)
+                       SPU_playCDDAchannel(read_buf, CD_FRAMESIZE_RAW);
+       }
 
        cdr.SetSectorPlay[2]++;
        if (cdr.SetSectorPlay[2] == 75) {
@@ -550,6 +570,8 @@ void cdrInterrupt() {
        int error = 0;
        int delay;
        unsigned int seekTime = 0;
+       u8 set_loc[3];
+       int i;
 
        // Reschedule IRQ
        if (cdr.Stat) {
@@ -583,14 +605,41 @@ void cdrInterrupt() {
                        break;
 
                case CdlSetloc:
+                       CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
+
+                       // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
+                       if (((cdr.Param[0] & 0x0F) > 0x09) || (cdr.Param[0] > 0x99) || ((cdr.Param[1] & 0x0F) > 0x09) || (cdr.Param[1] >= 0x60) || ((cdr.Param[2] & 0x0F) > 0x09) || (cdr.Param[2] >= 0x75))
+                       {
+                               CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
+                               error = ERROR_INVALIDARG;
+                               goto set_error;
+                       }
+                       else
+                       {
+                               for (i = 0; i < 3; i++)
+                               {
+                                       set_loc[i] = btoi(cdr.Param[i]);
+                               }
+
+                               i = msf2sec(cdr.SetSectorPlay);
+                               i = abs(i - msf2sec(set_loc));
+                               if (i > 16)
+                                       cdr.Seeked = SEEK_PENDING;
+
+                               memcpy(cdr.SetSector, set_loc, 3);
+                               cdr.SetSector[3] = 0;
+                               cdr.SetlocPending = 1;
+                       }
                        break;
 
                do_CdlPlay:
                case CdlPlay:
                        StopCdda();
-                       /* It would set it to SEEK_DONE*/
-                       cdr.Seeked = SEEK_PENDING;
-
+                       if (cdr.Seeked == SEEK_PENDING) {
+                               // XXX: wrong, should seek instead..
+                               cdr.Seeked = SEEK_DONE;
+                       }
+                       
                        cdr.FastBackward = 0;
                        cdr.FastForward = 0;
 
@@ -637,6 +686,7 @@ void cdrInterrupt() {
                        ReadTrack(cdr.SetSectorPlay);
                        cdr.TrackChanged = FALSE;
 
+                       StopReading();
                        if (!Config.Cdda)
                                CDR_play(cdr.SetSectorPlay);
 
@@ -656,7 +706,7 @@ void cdrInterrupt() {
                case CdlForward:
                        // TODO: error 80 if stopped
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
+
                        // GameShark CD Player: Calls 2x + Play 2x
                        cdr.FastForward = 1;
                        cdr.FastBackward = 0;
@@ -666,7 +716,7 @@ void cdrInterrupt() {
                        cdr.Stat = Complete;
 
                        // GameShark CD Player: Calls 2x + Play 2x
-                       cdr.FastBackward =1;
+                       cdr.FastBackward = 1;
                        cdr.FastForward = 0;
                        break;
 
@@ -681,7 +731,6 @@ void cdrInterrupt() {
 
                case CdlStandby + 0x100:
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        break;
 
                case CdlStop:
@@ -709,15 +758,16 @@ void cdrInterrupt() {
                        cdr.StatP &= ~STATUS_ROTATING;
                        cdr.Result[0] = cdr.StatP;
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        break;
 
                case CdlPause:
                        /*
                        Gundam Battle Assault 2: much slower (*)
                        - Fixes boot, gameplay
+
                        Hokuto no Ken 2: slower
                        - Fixes intro + subtitles
+
                        InuYasha - Feudal Fairy Tale: slower
                        - Fixes battles
                        */
@@ -725,10 +775,8 @@ void cdrInterrupt() {
                         * The timings from Duckstation are based upon hardware tests.
                         * Mednafen's timing don't work for Gundam Battle Assault 2 in PAL/50hz mode,
                         * seems to be timing sensitive as it can depend on the CPU's clock speed.
-                        * 
-                        * We will need to get around this for Bedlam/Rise 2 later...
                         * */
-                       if (cdr.DriveState != DRIVESTATE_STANDBY)
+                       if (cdr.DriveState == DRIVESTATE_STANDBY)
                        {
                                delay = 7000;
                        }
@@ -745,12 +793,11 @@ void cdrInterrupt() {
                        cdr.StatP &= ~STATUS_READ;
                        cdr.Result[0] = cdr.StatP;
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        break;
 
                case CdlReset:
                        cdr.Muted = FALSE;
-                       cdr.Mode = 0x20; /* Needed for This is Football 2, Pooh's Party and possibly others. */
+                       cdr.Mode = 0x20; /* This fixes This is Football 2, Pooh's Party lockups */
                        AddIrqQueue(CdlReset + 0x100, 4100000);
                        no_busy_error = 1;
                        start_rotating = 1;
@@ -758,7 +805,6 @@ void cdrInterrupt() {
 
                case CdlReset + 0x100:
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        break;
 
                case CdlMute:
@@ -779,6 +825,7 @@ void cdrInterrupt() {
                        break;
 
                case CdlGetparam:
+                       /* Gameblabla : According to mednafen, Result size should be 5 and done this way. */
                        SetResultSize(5);
                        cdr.Result[1] = cdr.Mode;
                        cdr.Result[2] = 0;
@@ -795,9 +842,6 @@ void cdrInterrupt() {
                case CdlGetlocP:
                        SetResultSize(8);
                        memcpy(&cdr.Result, &cdr.subq, 8);
-
-                       if (!cdr.Play && !cdr.Reading)
-                               cdr.Result[1] = 0; // HACK?
                        break;
 
                case CdlReadT: // SetSession?
@@ -808,7 +852,6 @@ void cdrInterrupt() {
 
                case CdlReadT + 0x100:
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        break;
 
                case CdlGetTN:
@@ -908,7 +951,6 @@ void cdrInterrupt() {
                        /* This adds the string "PCSX" in Playstation bios boot screen */
                        memcpy((char *)&cdr.Result[4], "PCSX", 4);
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        break;
 
                case CdlInit:
@@ -932,7 +974,6 @@ void cdrInterrupt() {
 
                case CdlReadToc + 0x100:
                        cdr.Stat = Complete;
-                       cdr.RErr = 1;
                        no_busy_error = 1;
                        break;
 
@@ -987,7 +1028,7 @@ void cdrInterrupt() {
                        - fixes cutscenes
                        C-12 - Final Resistance - doesn't like seek
                        */
-
+                       
                        /*      
                                By nicolasnoble from PCSX Redux :
                                "It LOOKS like this logic is wrong, therefore disabling it with `&& false` for now.
@@ -997,6 +1038,7 @@ void cdrInterrupt() {
                                tries to protect itself against errors by preventing from issuing a GetLocP while it knows the
                                last status was "seek". But this makes the logic just softlock as it'll never get a notification
                                about the fact the drive is done seeking and the read actually started.
+
                                In other words, this state machine here is probably wrong in assuming the response to ReadS/ReadN is
                                done right away. It's rather when it's done seeking, and the read has actually started. This probably
                                requires a bit more work to make sure seek delays are processed properly.
@@ -1007,12 +1049,12 @@ void cdrInterrupt() {
                        */
                        cdr.StatP |= STATUS_READ;
                        cdr.StatP &= ~STATUS_SEEK;
+
                        CDREAD_INT(((cdr.Mode & 0x80) ? (cdReadTime) : cdReadTime * 2) + seekTime);
 
                        cdr.Result[0] = cdr.StatP;
                        start_rotating = 1;
                        break;
-
                case CdlSync:
                default:
                        CDR_LOG_I("Invalid command: %02x\n", Irq);
@@ -1132,9 +1174,9 @@ void cdrReadInterrupt() {
 
        buf = CDR_getBuffer();
        if (buf == NULL)
-               cdr.RErr = 0;
+               cdr.NoErr = 0;
 
-       if (cdr.RErr == 0) {
+       if (!cdr.NoErr) {
                CDR_LOG_I("cdrReadInterrupt() Log: err\n");
                memset(cdr.Transfer, 0, DATA_SIZE);
                cdr.Stat = DiskError;
@@ -1167,6 +1209,19 @@ void cdrReadInterrupt() {
                        int ret = xa_decode_sector(&cdr.Xa, cdr.Transfer+4, cdr.FirstSector);
                        if (!ret) {
                                cdrAttenuate(cdr.Xa.pcm, cdr.Xa.nsamples, cdr.Xa.stereo);
+                               /*
+                                * Gameblabla -
+                                * This is a hack for Megaman X4, Castlevania etc...
+                                * that regressed from the new m_locationChanged and CDROM timings changes.
+                                * It is mostly noticeable in Castevania however and the stuttering can be very jarring.
+                                * 
+                                * According to PCSX redux authors, we shouldn't cause a location change if
+                                * the sector difference is too small. 
+                                * I attempted to go with that approach but came empty handed.
+                                * So for now, let's just set cdr.m_locationChanged to false when playing back any ADPCM samples.
+                                * This does not regress Crash Team Racing's intro at least.
+                               */
+                               cdr.m_locationChanged = FALSE;
                                SPU_playADPCMchannel(&cdr.Xa);
                                cdr.FirstSector = 0;
                        }
@@ -1260,9 +1315,6 @@ unsigned char cdrRead1(void) {
 }
 
 void cdrWrite1(unsigned char rt) {
-       u8 set_loc[3];
-       int i;
-
        CDR_LOG_IO("cdr w1: %02x\n", rt);
 
        switch (cdr.Ctrl & 3) {
@@ -1296,31 +1348,6 @@ void cdrWrite1(unsigned char rt) {
        AddIrqQueue(cdr.Cmd, 0x800);
 
        switch (cdr.Cmd) {
-       case CdlSetloc:
-               CDR_LOG("CDROM setloc command (%02X, %02X, %02X)\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
-
-               // MM must be BCD, SS must be BCD and <0x60, FF must be BCD and <0x75
-               if (((cdr.Param[0] & 0x0F) > 0x09) || (cdr.Param[0] > 0x99) || ((cdr.Param[1] & 0x0F) > 0x09) || (cdr.Param[1] >= 0x60) || ((cdr.Param[2] & 0x0F) > 0x09) || (cdr.Param[2] >= 0x75))
-               {
-                       CDR_LOG("Invalid/out of range seek to %02X:%02X:%02X\n", cdr.Param[0], cdr.Param[1], cdr.Param[2]);
-               }
-               else
-               {
-                       for (i = 0; i < 3; i++)
-                       {
-                               set_loc[i] = btoi(cdr.Param[i]);
-                       }
-
-                       i = msf2sec(cdr.SetSectorPlay);
-                       i = abs(i - msf2sec(set_loc));
-                       if (i > 16)
-                               cdr.Seeked = SEEK_PENDING;
-
-                       memcpy(cdr.SetSector, set_loc, 3);
-                       cdr.SetSector[3] = 0;
-                       cdr.SetlocPending = 1;
-               }
-               break;
 
        case CdlReadN:
        case CdlReadS:
@@ -1469,7 +1496,7 @@ void psxDma3(u32 madr, u32 bcr, u32 chcr) {
 
 
                        ptr = (u8 *)PSXM(madr);
-                       if (ptr == NULL) {
+                       if (ptr == INVALID_PTR) {
                                CDR_LOG("psxDma3() Log: *** DMA 3 *** NULL Pointer!\n");
                                break;
                        }
@@ -1542,9 +1569,7 @@ void cdrReset() {
        cdr.DriveState = DRIVESTATE_STANDBY;
        cdr.StatP = STATUS_ROTATING;
        pTransfer = cdr.Transfer;
-       cdr.SetlocPending = 0;
-       cdr.m_locationChanged = FALSE;
-
+       
        // BIOS player - default values
        cdr.AttenuatorLeftToLeft = 0x80;
        cdr.AttenuatorLeftToRight = 0x00;