X-Git-Url: https://git.ucc.asn.au/?a=blobdiff_plain;f=Modules%2FStorage%2FATA%2Fio.c;h=b8a15d016424e768ec6fe6d1fdc0a9071d750ec8;hb=4bd32b966938a9f52c22d63cac0b22d6932e585d;hp=de6bf96b48dee67a1600b9528e46310526f3fb4f;hpb=98d45a155c3ce437d0eddb67b9eb2b203f87ec3b;p=tpg%2Facess2.git

diff --git a/Modules/Storage/ATA/io.c b/Modules/Storage/ATA/io.c
index de6bf96b..b8a15d01 100644
--- a/Modules/Storage/ATA/io.c
+++ b/Modules/Storage/ATA/io.c
@@ -79,8 +79,8 @@ Uint16	ATA_GetBasePort(int Disk);
  int	ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer);
  int	ATA_WriteDMA(Uint8 Disk, Uint64 Address, Uint Count, const void *Buffer);
 // IRQs
-void	ATA_IRQHandlerPri(int UNUSED(IRQ));
-void	ATA_IRQHandlerSec(int UNUSED(IRQ));
+void	ATA_IRQHandlerPri(int UNUSED(IRQ), void *UNUSED(Ptr));
+void	ATA_IRQHandlerSec(int UNUSED(IRQ), void *UNUSED(Ptr));
 // Controller IO
 Uint8	ATA_int_BusMasterReadByte(int Ofs);
 Uint32	ATA_int_BusMasterReadDWord(int Ofs);
@@ -117,7 +117,7 @@ int ATA_SetupIO(void)
 	ENTER("");
 
 	// Get IDE Controller's PCI Entry
-	ent = PCI_GetDeviceByClass(0x0101, 0xFFFF, -1);
+	ent = PCI_GetDeviceByClass(0x010100, 0xFFFF00, -1);
 	LOG("ent = %i", ent);
 	gATA_BusMasterBase = PCI_GetBAR(ent, 4);
 	if( gATA_BusMasterBase == 0 ) {
@@ -141,12 +141,12 @@ int ATA_SetupIO(void)
 	}
 	else {
 		// Bit 0 is left set as a flag to other functions
-		LOG("gATA_BusMasterBase = 0x%x", gATA_BusMasterBase & ~1);
+		LOG("gATA_BusMasterBase = IO 0x%x", gATA_BusMasterBase & ~1);
 	}
 
 	// Register IRQs and get Buffers
-	IRQ_AddHandler( gATA_IRQPri, ATA_IRQHandlerPri );
-	IRQ_AddHandler( gATA_IRQSec, ATA_IRQHandlerSec );
+	IRQ_AddHandler( gATA_IRQPri, ATA_IRQHandlerPri, NULL );
+	IRQ_AddHandler( gATA_IRQSec, ATA_IRQHandlerSec, NULL );
 
 	gATA_PRDTs[0].PBufAddr = MM_GetPhysAddr( (tVAddr)&gATA_Buffers[0] );
 	gATA_PRDTs[1].PBufAddr = MM_GetPhysAddr( (tVAddr)&gATA_Buffers[1] );
@@ -164,6 +164,8 @@ int ATA_SetupIO(void)
 	// Enable controllers
 	outb(IDE_PRI_BASE+1, 1);
 	outb(IDE_SEC_BASE+1, 1);
+	outb(IDE_PRI_CTRL, 0);
+	outb(IDE_SEC_CTRL, 0);
 	
 	// Make sure interrupts are ACKed
 	ATA_int_BusMasterWriteByte(2, 0x4);
@@ -283,7 +285,6 @@ int ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
 	 int	disk = Disk & 1;
 	Uint16	base;
 	Sint64	timeoutTime;
-	Uint8	val;
 
 	ENTER("iDisk XAddress iCount pBuffer", Disk, Address, Count, Buffer);
 
@@ -314,14 +315,14 @@ int ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
 
 	#if 1
 	if( cont == 0 ) {
-		outb(base+IDE_PRI_CTRL, 4);
+		outb(IDE_PRI_CTRL, 4);
 		IO_DELAY();
-		outb(base+IDE_PRI_CTRL, 0);
+		outb(IDE_PRI_CTRL, 0);
 	}
 	else {
-		outb(base+IDE_SEC_CTRL, 4);
+		outb(IDE_SEC_CTRL, 4);
 		IO_DELAY();
-		outb(base+IDE_SEC_CTRL, 0);
+		outb(IDE_SEC_CTRL, 0);
 	}
 	#endif
 
@@ -374,12 +375,27 @@ int ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
 	// Complete Transfer
 	ATA_int_BusMasterWriteByte( cont * 8, 8 );	// Read and stop
 
-	val = inb(base+0x7);
-	LOG("Status byte = 0x%02x, Controller Status = 0x%02x",
-		val, ATA_int_BusMasterReadByte(cont * 8 + 2));
+	#if DEBUG
+	{
+		Uint8	val = inb(base+0x7);
+		LOG("Status byte = 0x%02x, Controller Status = 0x%02x",
+			val, ATA_int_BusMasterReadByte(cont * 8 + 2));
+	}
+	#else
+	inb(base+0x7);
+	#endif
+
+	if( gaATA_IRQs[cont] == 0 )
+	{
+		if( ATA_int_BusMasterReadByte(cont * 8 + 2) & 0x4 ) {
+			Log_Error("ATA", "BM Status reports an interrupt, but none recieved");
+			ATA_int_BusMasterWriteByte(cont*8 + 2, 4);	// Clear interrupt
+			memcpy( Buffer, gATA_Buffers[cont], Count*SECTOR_SIZE );
+			Mutex_Release( &glaATA_ControllerLock[ cont ] );
+			LEAVE('i', 0);
+			return 0;
+		}
 
-	if( gaATA_IRQs[cont] == 0 ) {
-		
 		#if 1
 		Debug_HexDump("ATA", Buffer, 512);
 		#endif
@@ -492,7 +508,7 @@ int ATA_WriteDMA(Uint8 Disk, Uint64 Address, Uint Count, const void *Buffer)
 /**
  * \brief Primary ATA Channel IRQ handler
  */
-void ATA_IRQHandlerPri(int UNUSED(IRQ))
+void ATA_IRQHandlerPri(int UNUSED(IRQ), void *UNUSED(Ptr))
 {
 	Uint8	val;
 
@@ -510,7 +526,7 @@ void ATA_IRQHandlerPri(int UNUSED(IRQ))
 /**
  * \brief Second ATA Channel IRQ handler
  */
-void ATA_IRQHandlerSec(int UNUSED(IRQ))
+void ATA_IRQHandlerSec(int UNUSED(IRQ), void *UNUSED(Ptr))
 {
 	Uint8	val;
 	// IRQ bit set for Secondary Controller