X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fcd%2Fcd_sys.c;h=003c825b96ee51c149d1bb888fb3cbe2811efe3c;hb=8b99ab90aa519639a87c302c9a26fef526febde9;hp=a482b7eb8afc424334356fc839faf2f6d77ae6c9;hpb=1cd356a33daf2eec34e52c075b06d62866f5fb2f;p=picodrive.git

diff --git a/Pico/cd/cd_sys.c b/Pico/cd/cd_sys.c
index a482b7e..003c825 100644
--- a/Pico/cd/cd_sys.c
+++ b/Pico/cd/cd_sys.c
@@ -1,8 +1,17 @@
+/***********************************************************
+ *                                                         *
+ * This source file was taken from the Gens project        *
+ * Written by Stéphane Dallongeville                       *
+ * Copyright (c) 2002 by Stéphane Dallongeville            *
+ * Modified/adapted for PicoDrive by notaz, 2007           *
+ *                                                         *
+ ***********************************************************/
+
 #include <stdio.h>
-#include "cd_sys.h"
-#include "cd_file.h"
 
 #include "../PicoInt.h"
+#include "cd_sys.h"
+#include "cd_file.h"
 
 #define cdprintf dprintf
 //#define cdprintf(x...)
@@ -17,19 +26,7 @@
 #define PLAYING		0x0100		// PLAYING audio track CDD status
 
 
-/*
-int CDDA_Enable;
-
-int CD_Audio_Buffer_L[8192];
-int CD_Audio_Buffer_R[8192];
-int CD_Audio_Buffer_Read_Pos = 0;
-int CD_Audio_Buffer_Write_Pos = 2000;
-int CD_Audio_Starting;
-*/
-
 static int CD_Present = 0;
-// int CD_Timer_Counter = 0; // TODO: check refs
-
 
 
 #define CHECK_TRAY_OPEN				\
@@ -65,27 +62,13 @@ if (!CD_Present)					\
 }
 
 
-#if 0
-static void MSB2DWORD(unsigned int *d, unsigned char *b)
-{
-	unsigned int  retVal;
-
-	retVal = (unsigned int )b[0];
-	retVal = (retVal<<8) + (unsigned int )b[1];
-	retVal = (retVal<<8) + (unsigned int )b[2];
-	retVal = (retVal<<8) + (unsigned int )b[3];
-
-	*d = retVal;
-}
-#endif
-
 static int MSF_to_LBA(_msf *MSF)
 {
 	return (MSF->M * 60 * 75) + (MSF->S * 75) + MSF->F - 150;
 }
 
 
-void LBA_to_MSF(int lba, _msf *MSF)
+PICO_INTERNAL void LBA_to_MSF(int lba, _msf *MSF)
 {
 	if (lba < -150) lba = 0;
 	else lba += 150;
@@ -139,7 +122,7 @@ static void Track_to_MSF(int track, _msf *MSF)
 }
 
 
-int Track_to_LBA(int track)
+PICO_INTERNAL int Track_to_LBA(int track)
 {
 	_msf MSF;
 
@@ -148,7 +131,7 @@ int Track_to_LBA(int track)
 }
 
 
-void Check_CD_Command(void)
+PICO_INTERNAL void Check_CD_Command(void)
 {
 	cdprintf("CHECK CD COMMAND");
 
@@ -192,24 +175,26 @@ void Check_CD_Command(void)
 }
 
 
-int Init_CD_Driver(void)
+PICO_INTERNAL int Init_CD_Driver(void)
 {
 	return 0;
 }
 
 
-void End_CD_Driver(void)
+PICO_INTERNAL void End_CD_Driver(void)
 {
-	FILE_End();
+	Unload_ISO();
 }
 
 
-void Reset_CD(void)
+PICO_INTERNAL void Reset_CD(void)
 {
 	Pico_mcd->scd.Cur_Track = 0;
 	Pico_mcd->scd.Cur_LBA = -150;
-	Pico_mcd->scd.Status_CDD = READY;
+	Pico_mcd->scd.Status_CDC &= ~1;
+	Pico_mcd->scd.Status_CDD = CD_Present ? READY : NOCD;
 	Pico_mcd->scd.CDD_Complete = 0;
+	Pico_mcd->scd.File_Add_Delay = 0;
 }
 
 
@@ -217,16 +202,16 @@ int Insert_CD(char *iso_name, int is_bin)
 {
 	int ret = 0;
 
-//	memset(CD_Audio_Buffer_L, 0, 4096 * 4);
-//	memset(CD_Audio_Buffer_R, 0, 4096 * 4);
-
 	CD_Present = 0;
+	Pico_mcd->scd.Status_CDD = NOCD;
 
 	if (iso_name != NULL)
 	{
 		ret = Load_ISO(iso_name, is_bin);
-		if (ret == 0)
+		if (ret == 0) {
 			CD_Present = 1;
+			Pico_mcd->scd.Status_CDD = READY;
+		}
 	}
 
 	return ret;
@@ -240,14 +225,15 @@ void Stop_CD(void)
 }
 
 
-void Change_CD(void)
+/*
+PICO_INTERNAL void Change_CD(void)
 {
 	if (Pico_mcd->scd.Status_CDD == TRAY_OPEN) Close_Tray_CDD_cC();
 	else Open_Tray_CDD_cD();
 }
+*/
 
-
-int Get_Status_CDD_c0(void)
+PICO_INTERNAL int Get_Status_CDD_c0(void)
 {
 	cdprintf("Status command : Cur LBA = %d", Pico_mcd->scd.Cur_LBA);
 
@@ -265,7 +251,7 @@ int Get_Status_CDD_c0(void)
 }
 
 
-int Stop_CDD_c1(void)
+PICO_INTERNAL int Stop_CDD_c1(void)
 {
 	CHECK_TRAY_OPEN
 
@@ -288,7 +274,7 @@ int Stop_CDD_c1(void)
 }
 
 
-int Get_Pos_CDD_c20(void)
+PICO_INTERNAL int Get_Pos_CDD_c20(void)
 {
 	_msf MSF;
 
@@ -320,7 +306,7 @@ int Get_Pos_CDD_c20(void)
 }
 
 
-int Get_Track_Pos_CDD_c21(void)
+PICO_INTERNAL int Get_Track_Pos_CDD_c21(void)
 {
 	int elapsed_time;
 	_msf MSF;
@@ -354,7 +340,7 @@ int Get_Track_Pos_CDD_c21(void)
 }
 
 
-int Get_Current_Track_CDD_c22(void)
+PICO_INTERNAL int Get_Current_Track_CDD_c22(void)
 {
 	cdprintf("Status CDD = %.4X  Status = %.4X", Pico_mcd->scd.Status_CDD, Pico_mcd->cdd.Status);
 
@@ -383,7 +369,7 @@ int Get_Current_Track_CDD_c22(void)
 }
 
 
-int Get_Total_Lenght_CDD_c23(void)
+PICO_INTERNAL int Get_Total_Lenght_CDD_c23(void)
 {
 	CHECK_TRAY_OPEN
 
@@ -407,7 +393,7 @@ int Get_Total_Lenght_CDD_c23(void)
 }
 
 
-int Get_First_Last_Track_CDD_c24(void)
+PICO_INTERNAL int Get_First_Last_Track_CDD_c24(void)
 {
 	CHECK_TRAY_OPEN
 
@@ -430,7 +416,7 @@ int Get_First_Last_Track_CDD_c24(void)
 }
 
 
-int Get_Track_Adr_CDD_c25(void)
+PICO_INTERNAL int Get_Track_Adr_CDD_c25(void)
 {
 	int track_number;
 
@@ -464,7 +450,7 @@ int Get_Track_Adr_CDD_c25(void)
 }
 
 
-int Play_CDD_c3(void)
+PICO_INTERNAL int Play_CDD_c3(void)
 {
 	_msf MSF;
 	int delay, new_lba;
@@ -522,7 +508,7 @@ int Play_CDD_c3(void)
 }
 
 
-int Seek_CDD_c4(void)
+PICO_INTERNAL int Seek_CDD_c4(void)
 {
 	_msf MSF;
 
@@ -560,7 +546,7 @@ int Seek_CDD_c4(void)
 }
 
 
-int Pause_CDD_c6(void)
+PICO_INTERNAL int Pause_CDD_c6(void)
 {
 	CHECK_TRAY_OPEN
 	CHECK_CD_PRESENT
@@ -583,7 +569,7 @@ int Pause_CDD_c6(void)
 }
 
 
-int Resume_CDD_c7(void)
+PICO_INTERNAL int Resume_CDD_c7(void)
 {
 	CHECK_TRAY_OPEN
 	CHECK_CD_PRESENT
@@ -625,7 +611,7 @@ int Resume_CDD_c7(void)
 }
 
 
-int Fast_Foward_CDD_c8(void)
+PICO_INTERNAL int Fast_Foward_CDD_c8(void)
 {
 	CHECK_TRAY_OPEN
 	CHECK_CD_PRESENT
@@ -646,7 +632,7 @@ int Fast_Foward_CDD_c8(void)
 }
 
 
-int Fast_Rewind_CDD_c9(void)
+PICO_INTERNAL int Fast_Rewind_CDD_c9(void)
 {
 	CHECK_TRAY_OPEN
 	CHECK_CD_PRESENT
@@ -667,33 +653,25 @@ int Fast_Rewind_CDD_c9(void)
 }
 
 
-int Close_Tray_CDD_cC(void)
+PICO_INTERNAL int Close_Tray_CDD_cC(void)
 {
+	CD_Present = 0;
 	//Clear_Sound_Buffer();
 
 	Pico_mcd->scd.Status_CDC &= ~1;			// Stop CDC read
 
-	{
-#if 0 // TODO
-		char new_iso[1024];
-
-		memset(new_iso, 0, 1024);
+	printf("tray close\n");
 
-		while (!Change_File_L(new_iso, Rom_Dir, "Load SegaCD image file", "SegaCD image file\0*.bin;*.iso;*.raw\0All files\0*.*\0\0", ""));
-		Reload_SegaCD(new_iso);
+	if (PicoMCDcloseTray != NULL)
+		CD_Present = PicoMCDcloseTray();
 
-		CD_Present = 1;
-#else
-		CD_Present = 0;
-#endif
-		Pico_mcd->scd.Status_CDD = STOPPED;
-		Pico_mcd->cdd.Status = 0x0000;
+	Pico_mcd->scd.Status_CDD = CD_Present ? STOPPED : NOCD;
+	Pico_mcd->cdd.Status = 0x0000;
 
-		Pico_mcd->cdd.Minute = 0;
-		Pico_mcd->cdd.Seconde = 0;
-		Pico_mcd->cdd.Frame = 0;
-		Pico_mcd->cdd.Ext = 0;
-	}
+	Pico_mcd->cdd.Minute = 0;
+	Pico_mcd->cdd.Seconde = 0;
+	Pico_mcd->cdd.Frame = 0;
+	Pico_mcd->cdd.Ext = 0;
 
 	Pico_mcd->scd.CDD_Complete = 1;
 
@@ -701,15 +679,20 @@ int Close_Tray_CDD_cC(void)
 }
 
 
-int Open_Tray_CDD_cD(void)
+PICO_INTERNAL int Open_Tray_CDD_cD(void)
 {
 	CHECK_TRAY_OPEN
 
 	Pico_mcd->scd.Status_CDC &= ~1;			// Stop CDC read
 
+	printf("tray open\n");
+
 	Unload_ISO();
 	CD_Present = 0;
 
+	if (PicoMCDopenTray != NULL)
+		PicoMCDopenTray();
+
 	Pico_mcd->scd.Status_CDD = TRAY_OPEN;
 	Pico_mcd->cdd.Status = 0x0E00;
 
@@ -724,7 +707,7 @@ int Open_Tray_CDD_cD(void)
 }
 
 
-int CDD_cA(void)
+PICO_INTERNAL int CDD_cA(void)
 {
 	CHECK_TRAY_OPEN
 	CHECK_CD_PRESENT
@@ -745,7 +728,7 @@ int CDD_cA(void)
 }
 
 
-int CDD_Def(void)
+PICO_INTERNAL int CDD_Def(void)
 {
 	Pico_mcd->cdd.Status = Pico_mcd->scd.Status_CDD;
 
@@ -758,193 +741,3 @@ int CDD_Def(void)
 }
 
 
-
-
-/***************************
- *   Others CD functions   *
- **************************/
-
-
-// do we need them?
-#if 0
-void Write_CD_Audio(short *Buf, int rate, int channel, int lenght)
-{
-	unsigned int lenght_src, lenght_dst;
-	unsigned int pos_src, pas_src;
-
-	if (rate == 0) return;
-	if (Sound_Rate == 0) return;
-
-	if (CD_Audio_Starting)
-	{
-		CD_Audio_Starting = 0;
-		memset(CD_Audio_Buffer_L, 0, 4096 * 4);
-		memset(CD_Audio_Buffer_R, 0, 4096 * 4);
-		CD_Audio_Buffer_Write_Pos = (CD_Audio_Buffer_Read_Pos + 2000) & 0xFFF;
-	}
-
-	lenght_src = rate / 75;				// 75th of a second
-	lenght_dst = Sound_Rate / 75;		// 75th of a second
-
-	pas_src = (lenght_src << 16) / lenght_dst;
-	pos_src = 0;
-
-#ifdef DEBUG_CD
-	fprintf(debug_SCD_file, "\n*********  Write Pos = %d    ", CD_Audio_Buffer_Write_Pos);
-#endif
-
-	if (channel == 2)
-	{
-		__asm
-		{
-			mov edi, CD_Audio_Buffer_Write_Pos
-			mov ebx, Buf
-			xor esi, esi
-			mov ecx, lenght_dst
-			xor eax, eax
-			mov edx, pas_src
-			dec ecx
-			jmp short loop_stereo
-
-align 16
-
-loop_stereo:
-			movsx eax, word ptr [ebx + esi * 4]
-			mov CD_Audio_Buffer_L[edi * 4], eax
-			movsx eax, word ptr [ebx + esi * 4 + 2]
-			mov CD_Audio_Buffer_R[edi * 4], eax
-			mov esi, dword ptr pos_src
-			inc edi
-			add esi, edx
-			and edi, 0xFFF
-			mov dword ptr pos_src, esi
-			shr esi, 16
-			dec ecx
-			jns short loop_stereo
-
-			mov CD_Audio_Buffer_Write_Pos, edi
-		}
-	}
-	else
-	{
-		__asm
-		{
-			mov edi, CD_Audio_Buffer_Write_Pos
-			mov ebx, Buf
-			xor esi, esi
-			mov ecx, lenght_dst
-			xor eax, eax
-			mov edx, pas_src
-			dec ecx
-			jmp short loop_mono
-
-align 16
-
-loop_mono:
-			movsx eax, word ptr [ebx + esi * 2]
-			mov CD_Audio_Buffer_L[edi * 4], eax
-			mov CD_Audio_Buffer_R[edi * 4], eax
-			mov esi, dword ptr pos_src
-			inc edi
-			add esi, edx
-			and edi, 0xFFF
-			mov dword ptr pos_src, esi
-			shr esi, 16
-			dec ecx
-			jns short loop_mono
-
-			mov CD_Audio_Buffer_Write_Pos, edi
-		}
-	}
-
-#ifdef DEBUG_CD
-	fprintf(debug_SCD_file, "Write Pos 2 = %d\n\n", CD_Audio_Buffer_Write_Pos);
-#endif
-}
-
-
-void Update_CD_Audio(int **buf, int lenght)
-{
-	int *Buf_L, *Buf_R;
-	int diff;
-
-	Buf_L = buf[0];
-	Buf_R = buf[1];
-
-	if (Pico_mcd->s68k_regs[0x36] & 0x01) return;
-	if (!(Pico_mcd->scd.Status_CDC & 1))  return;
-	if (CD_Audio_Starting) return;
-
-#ifdef DEBUG_CD
-	fprintf(debug_SCD_file, "\n*********  Read Pos Normal = %d     ", CD_Audio_Buffer_Read_Pos);
-#endif
-
-	if (CD_Audio_Buffer_Write_Pos < CD_Audio_Buffer_Read_Pos)
-	{
-		diff = CD_Audio_Buffer_Write_Pos + (4096) - CD_Audio_Buffer_Read_Pos;
-	}
-	else
-	{
-		diff = CD_Audio_Buffer_Write_Pos - CD_Audio_Buffer_Read_Pos;
-	}
-
-	if (diff < 500) CD_Audio_Buffer_Read_Pos -= 2000;
-	else if (diff > 3500) CD_Audio_Buffer_Read_Pos += 2000;
-
-#ifdef DEBUG_CD
-	else fprintf(debug_SCD_file, " pas de modifs   ");
-#endif
-
-	CD_Audio_Buffer_Read_Pos &= 0xFFF;
-
-#ifdef DEBUG_CD
-	fprintf(debug_SCD_file, "Read Pos = %d   ", CD_Audio_Buffer_Read_Pos);
-#endif
-
-	if (CDDA_Enable)
-	{
-		__asm
-		{
-			mov ecx, lenght
-			mov esi, CD_Audio_Buffer_Read_Pos
-			mov edi, Buf_L
-			dec ecx
-
-loop_L:
-			mov eax, CD_Audio_Buffer_L[esi * 4]
-			add [edi], eax
-			inc esi
-			add edi, 4
-			and esi, 0xFFF
-			dec ecx
-			jns short loop_L
-
-			mov ecx, lenght
-			mov esi, CD_Audio_Buffer_Read_Pos
-			mov edi, Buf_R
-			dec ecx
-
-loop_R:
-			mov eax, CD_Audio_Buffer_R[esi * 4]
-			add [edi], eax
-			inc esi
-			add edi, 4
-			and esi, 0xFFF
-			dec ecx
-			jns short loop_R
-
-			mov CD_Audio_Buffer_Read_Pos, esi
-		}
-	}
-	else
-	{
-		CD_Audio_Buffer_Read_Pos += lenght;
-		CD_Audio_Buffer_Read_Pos &= 0xFFF;
-	}
-
-#ifdef DEBUG_CD
-	fprintf(debug_SCD_file, "Read Pos 2 = %d\n\n", CD_Audio_Buffer_Read_Pos);
-#endif
-}
-#endif
-