* - main.c
*/
#define DEBUG 0
+#define VERSION 0x0032
#include <acess.h>
#include <modules.h>
#include <vfs.h>
#include <fs_devfs.h>
-#include <drv_pci.h>
-#include <tpl_drv_common.h>
-#include <tpl_drv_disk.h>
+#include <api_drv_common.h>
+#include <api_drv_disk.h>
#include "common.h"
-// --- Flags ---
-#define START_BEFORE_CMD 0
-
-// === STRUCTURES ===
-typedef struct
-{
- Uint32 PBufAddr;
- Uint16 Bytes;
- Uint16 Flags;
-} __attribute__ ((packed)) tPRDT_Ent;
-typedef struct
-{
- Uint16 Flags; // 1
- Uint16 Usused1[9]; // 10
- char SerialNum[20]; // 20
- Uint16 Usused2[3]; // 23
- char FirmwareVer[8]; // 27
- char ModelNumber[40]; // 47
- Uint16 SectPerInt; // 48 - AND with 0xFF to get true value;
- Uint16 Unused3; // 49
- Uint16 Capabilities[2]; // 51
- Uint16 Unused4[2]; // 53
- Uint16 ValidExtData; // 54
- Uint16 Unused5[5]; // 59
- Uint16 SizeOfRWMultiple; // 60
- Uint32 Sectors28; // 62
- Uint16 Unused6[100-62];
- Uint64 Sectors48;
- Uint16 Unused7[256-104];
-} __attribute__ ((packed)) tIdentify;
-
-// === IMPORTS ===
-extern void ATA_ParseMBR(int Disk);
+// === MACROS ===
+#define IO_DELAY() do{inb(0x80); inb(0x80); inb(0x80); inb(0x80);}while(0)
// === PROTOTYPES ===
- int ATA_Install();
- int ATA_SetupIO();
-void ATA_SetupPartitions();
-void ATA_SetupVFS();
+ int ATA_Install(char **Arguments);
+void ATA_SetupPartitions(void);
+void ATA_SetupVFS(void);
int ATA_ScanDisk(int Disk);
void ATA_ParseGPT(int Disk);
void ATA_int_MakePartition(tATA_Partition *Part, int Disk, int Num, Uint64 Start, Uint64 Length);
Uint16 ATA_GetBasePort(int Disk);
// Filesystem Interface
char *ATA_ReadDir(tVFS_Node *Node, int Pos);
-tVFS_Node *ATA_FindDir(tVFS_Node *Node, char *Name);
+tVFS_Node *ATA_FindDir(tVFS_Node *Node, const char *Name);
Uint64 ATA_ReadFS(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
Uint64 ATA_WriteFS(tVFS_Node *Node, Uint64 Offset, Uint64 Length, void *Buffer);
int ATA_IOCtl(tVFS_Node *Node, int Id, void *Data);
// Read/Write Interface/Quantiser
Uint ATA_ReadRaw(Uint64 Address, Uint Count, void *Buffer, Uint Disk);
Uint ATA_WriteRaw(Uint64 Address, Uint Count, void *Buffer, Uint Disk);
-// Read/Write DMA
- int ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer);
- int ATA_WriteDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer);
-// IRQs
-void ATA_IRQHandlerPri(int unused);
-void ATA_IRQHandlerSec(int unused);
-// Controller IO
-Uint8 ATA_int_BusMasterReadByte(int Ofs);
-void ATA_int_BusMasterWriteByte(int Ofs, Uint8 Value);
-void ATA_int_BusMasterWriteDWord(int Ofs, Uint32 Value);
// === GLOBALS ===
-MODULE_DEFINE(0, 0x0032, i386ATA, ATA_Install, NULL, "PCI", NULL);
+MODULE_DEFINE(0, VERSION, i386ATA, ATA_Install, NULL, "PCI", NULL);
tDevFS_Driver gATA_DriverInfo = {
NULL, "ata",
{
tATA_Disk gATA_Disks[MAX_ATA_DISKS];
int giATA_NumNodes;
tVFS_Node **gATA_Nodes;
-Uint16 gATA_BusMasterBase = 0;
-Uint8 *gATA_BusMasterBasePtr = 0;
- int gATA_IRQPri = 14;
- int gATA_IRQSec = 15;
- int giaATA_ControllerLock[2] = {0}; //!< Spinlocks for each controller
-Uint8 gATA_Buffers[2][4096] __attribute__ ((section(".padata")));
- int gaATA_IRQs[2] = {0};
-tPRDT_Ent gATA_PRDTs[2] = {
- {0, 512, IDE_PRDT_LAST},
- {0, 512, IDE_PRDT_LAST}
-};
// === CODE ===
/**
- * \fn int ATA_Install()
+ * \brief Initialise the ATA driver
*/
-int ATA_Install()
+int ATA_Install(char **Arguments)
{
int ret;
}
/**
- * \fn int ATA_SetupIO()
- * \brief Sets up the ATA controller's DMA mode
+ * \brief Scan all disks, looking for partitions
*/
-int ATA_SetupIO()
-{
- int ent;
- tPAddr addr;
-
- ENTER("");
-
- // Get IDE Controller's PCI Entry
- ent = PCI_GetDeviceByClass(0x0101, 0xFFFF, -1);
- LOG("ent = %i", ent);
- gATA_BusMasterBase = PCI_GetBAR4( ent );
- if( gATA_BusMasterBase == 0 ) {
- Warning("It seems that there is no Bus Master Controller on this machine. Get one");
- LEAVE('i', MODULE_ERR_NOTNEEDED);
- return MODULE_ERR_NOTNEEDED;
- }
-
- // Map memory
- if( !(gATA_BusMasterBase & 1) )
- {
- if( gATA_BusMasterBase < 0x100000 )
- gATA_BusMasterBasePtr = (void*)(0xC0000000|gATA_BusMasterBase);
- else
- gATA_BusMasterBasePtr = (void*)( MM_MapHWPages( gATA_BusMasterBase, 1 ) + (gATA_BusMasterBase&0xFFF) );
- LOG("gATA_BusMasterBasePtr = %p", gATA_BusMasterBasePtr);
- }
- else {
- // Bit 0 is left set as a flag to other functions
- LOG("gATA_BusMasterBase = 0x%x", gATA_BusMasterBase & ~1);
- }
-
- // Register IRQs and get Buffers
- IRQ_AddHandler( gATA_IRQPri, ATA_IRQHandlerPri );
- IRQ_AddHandler( gATA_IRQSec, ATA_IRQHandlerSec );
-
- gATA_PRDTs[0].PBufAddr = MM_GetPhysAddr( (Uint)&gATA_Buffers[0] );
- gATA_PRDTs[1].PBufAddr = MM_GetPhysAddr( (Uint)&gATA_Buffers[1] );
-
- LOG("gATA_PRDTs = {PBufAddr: 0x%x, PBufAddr: 0x%x}", gATA_PRDTs[0].PBufAddr, gATA_PRDTs[1].PBufAddr);
-
- addr = MM_GetPhysAddr( (Uint)&gATA_PRDTs[0] );
- LOG("addr = 0x%x", addr);
- ATA_int_BusMasterWriteDWord(4, addr);
- addr = MM_GetPhysAddr( (Uint)&gATA_PRDTs[1] );
- LOG("addr = 0x%x", addr);
- ATA_int_BusMasterWriteDWord(12, addr);
-
- // Enable controllers
- outb(IDE_PRI_BASE+1, 1);
- outb(IDE_SEC_BASE+1, 1);
-
- // return
- LEAVE('i', MODULE_ERR_OK);
- return MODULE_ERR_OK;
-}
-
-/**
- * \fn void ATA_SetupPartitions()
- */
-void ATA_SetupPartitions()
+void ATA_SetupPartitions(void)
{
int i;
for( i = 0; i < MAX_ATA_DISKS; i ++ )
}
/**
- * \fn void ATA_SetupVFS()
* \brief Sets up the ATA drivers VFS information and registers with DevFS
*/
-void ATA_SetupVFS()
+void ATA_SetupVFS(void)
{
int i, j, k;
}
/**
- * \fn int ATA_ScanDisk(int Disk)
+ * \brief Scan a disk, getting the size and any paritions
+ * \param Disk Disk ID to scan
*/
int ATA_ScanDisk(int Disk)
{
- Uint16 buf[256];
- tIdentify *identify = (void*)buf;
- tMBR *mbr = (void*)buf;
- Uint16 base;
- Uint8 val;
- int i;
tVFS_Node *node;
+ tMBR mbr;
ENTER("iDisk", Disk);
-
- base = ATA_GetBasePort( Disk );
-
- LOG("base = 0x%x", base);
-
- // Send Disk Selector
- if(Disk == 1 || Disk == 3)
- outb(base+6, 0xB0);
- else
- outb(base+6, 0xA0);
-
- // Send IDENTIFY
- outb(base+7, 0xEC);
- val = inb(base+7); // Read status
- if(val == 0) {
+
+ // Get the disk size
+ gATA_Disks[ Disk ].Sectors = ATA_GetDiskSize(Disk);
+ if(gATA_Disks[ Disk ].Sectors == 0)
+ {
LEAVE('i', 0);
- return 0; // Disk does not exist
+ return 0;
}
- // Poll until BSY clears and DRQ sets or ERR is set
- while( ((val & 0x80) || !(val & 0x08)) && !(val & 1)) val = inb(base+7);
+ LOG("gATA_Disks[ %i ].Sectors = 0x%x", Disk, gATA_Disks[ Disk ].Sectors);
- if(val & 1) {
- LEAVE('i', 0);
- return 0; // Error occured, so return false
+ {
+ Uint64 val = gATA_Disks[ Disk ].Sectors / 2;
+ char *units = "KiB";
+ if( val > 4*1024 ) {
+ val /= 1024;
+ units = "MiB";
+ }
+ else if( val > 4*1024 ) {
+ val /= 1024;
+ units = "GiB";
+ }
+ else if( val > 4*1024 ) {
+ val /= 1024;
+ units = "TiB";
+ }
+ Log_Log("ATA", "Disk %i: 0x%llx Sectors (%lli %s)", Disk,
+ gATA_Disks[ Disk ].Sectors, val, units);
}
- // Read Data
- for(i=0;i<256;i++) buf[i] = inw(base);
-
- // Populate Disk Structure
- if(identify->Sectors48 != 0)
- gATA_Disks[ Disk ].Sectors = identify->Sectors48;
- else
- gATA_Disks[ Disk ].Sectors = identify->Sectors28;
-
-
- LOG("gATA_Disks[ Disk ].Sectors = 0x%x", gATA_Disks[ Disk ].Sectors);
-
- if( gATA_Disks[ Disk ].Sectors / (2048*1024) )
- Log("Disk %i: 0x%llx Sectors (%i GiB)", Disk,
- gATA_Disks[ Disk ].Sectors, gATA_Disks[ Disk ].Sectors / (2048*1024));
- else if( gATA_Disks[ Disk ].Sectors / 2048 )
- Log("Disk %i: 0x%llx Sectors (%i MiB)", Disk,
- gATA_Disks[ Disk ].Sectors, gATA_Disks[ Disk ].Sectors / 2048);
- else
- Log("Disk %i: 0x%llx Sectors (%i KiB)", Disk,
- gATA_Disks[ Disk ].Sectors, gATA_Disks[ Disk ].Sectors / 2);
-
// Create Name
gATA_Disks[ Disk ].Name[0] = 'A'+Disk;
gATA_Disks[ Disk ].Name[1] = '\0';
node->Write = ATA_WriteFS;
node->IOCtl = ATA_IOCtl;
-
// --- Scan Partitions ---
LOG("Reading MBR");
// Read Boot Sector
- ATA_ReadDMA( Disk, 0, 1, mbr );
+ if( ATA_ReadDMA( Disk, 0, 1, &mbr ) != 0 ) {
+ Log_Warning("ATA", "Error in reading MBR on %i", Disk);
+ LEAVE('i', 0);
+ return 0;
+ }
// Check for a GPT table
- if(mbr->Parts[0].SystemID == 0xEE)
+ if(mbr.Parts[0].SystemID == 0xEE)
ATA_ParseGPT(Disk);
else // No? Just parse the MBR
- ATA_ParseMBR(Disk);
+ ATA_ParseMBR(Disk, &mbr);
+
+ #if DEBUG >= 2
+ ATA_ReadDMA( Disk, 1, 1, &mbr );
+ Debug_HexDump("ATA_ScanDisk", &mbr, 512);
+ #endif
- LEAVE('i', 0);
+ LEAVE('i', 1);
return 1;
}
Part->Node.Read = ATA_ReadFS;
Part->Node.Write = ATA_WriteFS;
Part->Node.IOCtl = ATA_IOCtl;
+ Log_Notice("ATA", "Note '%s' at 0x%llx, 0x%llx long", Part->Name, Part->Start, Part->Length);
LOG("Made '%s' (&Node=%p)", Part->Name, &Part->Node);
LEAVE('-');
}
void ATA_ParseGPT(int Disk)
{
///\todo Support GPT Disks
- Warning("GPT Disks are currently unsupported");
-}
-
-/**
- * \fn Uint16 ATA_GetPortBase(int Disk)
- * \brief Returns the base port for a given disk
- */
-Uint16 ATA_GetBasePort(int Disk)
-{
- switch(Disk)
- {
- case 0: case 1: return IDE_PRI_BASE;
- case 2: case 3: return IDE_SEC_BASE;
- }
- return 0;
+ Warning("GPT Disks are currently unsupported (Disk %i)", Disk);
}
/**
* \fn char *ATA_ReadDir(tVFS_Node *Node, int Pos)
*/
-char *ATA_ReadDir(tVFS_Node *Node, int Pos)
+char *ATA_ReadDir(tVFS_Node *UNUSED(Node), int Pos)
{
if(Pos >= giATA_NumNodes || Pos < 0) return NULL;
return strdup( gATA_Nodes[Pos]->ImplPtr );
}
/**
- * \fn tVFS_Node *ATA_FindDir(tVFS_Node *Node, char *Name)
+ * \fn tVFS_Node *ATA_FindDir(tVFS_Node *Node, const char *Name)
*/
-tVFS_Node *ATA_FindDir(tVFS_Node *Node, char *Name)
+tVFS_Node *ATA_FindDir(tVFS_Node *UNUSED(Node), const char *Name)
{
int part;
+ tATA_Disk *disk;
+
// Check first character
if(Name[0] < 'A' || Name[0] > 'A'+MAX_ATA_DISKS)
return NULL;
+ disk = &gATA_Disks[Name[0]-'A'];
// Raw Disk
if(Name[1] == '\0') {
- if( gATA_Disks[Name[0]-'A'].Sectors == 0 )
+ if( disk->Sectors == 0 && disk->Name[0] == '\0')
return NULL;
- return &gATA_Disks[Name[0]-'A'].Node;
+ return &disk->Node;
}
// Partitions
if(Name[2] == '\0') { // <= 9
part = Name[1] - '0';
part --;
- return &gATA_Disks[Name[0]-'A'].Partitions[part].Node;
+ return &disk->Partitions[part].Node;
}
// > 9
if('0' > Name[2] || '9' < Name[2]) return NULL;
part = (Name[1] - '0') * 10;
part += Name[2] - '0';
part --;
- return &gATA_Disks[Name[0]-'A'].Partitions[part].Node;
+ return &disk->Partitions[part].Node;
}
int disk = Node->Inode >> 8;
int part = Node->Inode & 0xFF;
+ ENTER("pNode XOffset XLength pBuffer", Node, Offset, Length, Buffer);
+
// Raw Disk Access
if(part == 0xFF)
{
- if( Offset >= gATA_Disks[disk].Sectors * SECTOR_SIZE )
+ if( Offset >= gATA_Disks[disk].Sectors * SECTOR_SIZE ) {
+ LEAVE('i', 0);
return 0;
+ }
if( Offset + Length > gATA_Disks[disk].Sectors*SECTOR_SIZE )
Length = gATA_Disks[disk].Sectors*SECTOR_SIZE - Offset;
}
// Partition
else
{
- if( Offset >= gATA_Disks[disk].Partitions[part].Length * SECTOR_SIZE )
+ if( Offset >= gATA_Disks[disk].Partitions[part].Length * SECTOR_SIZE ) {
+ LEAVE('i', 0);
return 0;
+ }
if( Offset + Length > gATA_Disks[disk].Partitions[part].Length * SECTOR_SIZE )
Length = gATA_Disks[disk].Partitions[part].Length * SECTOR_SIZE - Offset;
Offset += gATA_Disks[disk].Partitions[part].Start * SECTOR_SIZE;
}
- //Log("ATA_ReadFS: (Node=%p, Offset=0x%llx, Length=0x%llx, Buffer=%p)", Node, Offset, Length, Buffer);
- return DrvUtil_ReadBlock(Offset, Length, Buffer, ATA_ReadRaw, SECTOR_SIZE, disk);
+ {
+ int ret = DrvUtil_ReadBlock(Offset, Length, Buffer, ATA_ReadRaw, SECTOR_SIZE, disk);
+ //Log("ATA_ReadFS: disk=%i, Offset=%lli, Length=%lli", disk, Offset, Length);
+ //Debug_HexDump("ATA_ReadFS", Buffer, Length);
+ LEAVE('i', ret);
+ return ret;
+ }
}
/**
return DrvUtil_WriteBlock(Offset, Length, Buffer, ATA_ReadRaw, ATA_WriteRaw, SECTOR_SIZE, disk);
}
+const char *csaATA_IOCtls[] = {DRV_IOCTLNAMES, DRV_DISK_IOCTLNAMES, NULL};
/**
* \fn int ATA_IOCtl(tVFS_Node *Node, int Id, void *Data)
* \brief IO Control Funtion
*/
-int ATA_IOCtl(tVFS_Node *Node, int Id, void *Data)
+int ATA_IOCtl(tVFS_Node *UNUSED(Node), int Id, void *Data)
{
switch(Id)
{
- case DRV_IOCTL_TYPE: return DRV_TYPE_DISK;
+ BASE_IOCTLS(DRV_TYPE_DISK, "i386ATA", VERSION, csaATA_IOCtls);
+
+ case DISK_IOCTL_GETBLOCKSIZE:
+ return 512;
+
+ default:
+ return 0;
}
return 0;
}
Uint offset;
Uint done = 0;
- // Pass straight on to ATA_WriteDMA if we can
+ // Pass straight on to ATA_WriteDMA, if we can
if(Count <= MAX_DMA_SECTORS)
{
ret = ATA_WriteDMA(Disk, Address, Count, Buffer);
if(ret != 1) return 0;
return done+Count;
}
-
-/**
- * \fn int ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
- */
-int ATA_ReadDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
-{
- int cont = (Disk>>1)&1; // Controller ID
- int disk = Disk & 1;
- Uint16 base;
-
- ENTER("iDisk XAddress iCount pBuffer", Disk, Address, Count, Buffer);
-
- // Check if the count is small enough
- if(Count > MAX_DMA_SECTORS) {
- Warning("Passed too many sectors for a bulk DMA read (%i > %i)",
- Count, MAX_DMA_SECTORS);
- LEAVE('i');
- return 0;
- }
-
- // Get exclusive access to the disk controller
- LOCK( &giaATA_ControllerLock[ cont ] );
-
- // Set Size
- gATA_PRDTs[ cont ].Bytes = Count * SECTOR_SIZE;
-
- // Get Port Base
- base = ATA_GetBasePort(Disk);
-
- // Reset IRQ Flag
- gaATA_IRQs[cont] = 0;
-
- // Set up transfer
- outb(base+0x01, 0x00);
- if( Address > 0x0FFFFFFF ) // Use LBA48
- {
- outb(base+0x6, 0x40 | (disk << 4));
- outb(base+0x2, 0 >> 8); // Upper Sector Count
- outb(base+0x3, Address >> 24); // Low 2 Addr
- outb(base+0x3, Address >> 28); // Mid 2 Addr
- outb(base+0x3, Address >> 32); // High 2 Addr
- }
- else
- {
- outb(base+0x06, 0xE0 | (disk << 4) | ((Address >> 24) & 0x0F)); //Disk,Magic,High addr
- }
-
- outb(base+0x02, (Uint8) Count); // Sector Count
- outb(base+0x03, (Uint8) Address); // Low Addr
- outb(base+0x04, (Uint8) (Address >> 8)); // Middle Addr
- outb(base+0x05, (Uint8) (Address >> 16)); // High Addr
-
- LOG("Starting Transfer");
- #if START_BEFORE_CMD
- // Start transfer
- ATA_int_BusMasterWriteByte( cont << 3, 9 ); // Read and start
- if( Address > 0x0FFFFFFF )
- outb(base+0x07, HDD_DMA_R48); // Read Command (LBA48)
- else
- outb(base+0x07, HDD_DMA_R28); // Read Command (LBA28)
- #else
- if( Address > 0x0FFFFFFF )
- outb(base+0x07, HDD_DMA_R48); // Read Command (LBA48)
- else
- outb(base+0x07, HDD_DMA_R28); // Read Command (LBA28)
- // Start transfer
- ATA_int_BusMasterWriteByte( cont << 3, 9 ); // Read and start
- #endif
-
- // Wait for transfer to complete
- //ATA_int_BusMasterWriteByte( (cont << 3) + 2, 0x4 );
- while( gaATA_IRQs[cont] == 0 ) {
- //Uint8 val = ATA_int_BusMasterReadByte( (cont << 3) + 2, 0x4 );
- //LOG("val = 0x%02x", val);
- Threads_Yield();
- }
-
- // Complete Transfer
- ATA_int_BusMasterWriteByte( cont << 3, 0 ); // Write and stop
-
- LOG("Transfer Completed & Acknowledged");
-
- // Copy to destination buffer
- memcpy( Buffer, gATA_Buffers[cont], Count*SECTOR_SIZE );
-
- // Release controller lock
- RELEASE( &giaATA_ControllerLock[ cont ] );
-
- LEAVE('i', 1);
- return 1;
-}
-
-/**
- * \fn int ATA_WriteDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
- */
-int ATA_WriteDMA(Uint8 Disk, Uint64 Address, Uint Count, void *Buffer)
-{
- int cont = (Disk>>1)&1; // Controller ID
- int disk = Disk & 1;
- Uint16 base;
-
- // Check if the count is small enough
- if(Count > MAX_DMA_SECTORS) return 0;
-
- // Get exclusive access to the disk controller
- LOCK( &giaATA_ControllerLock[ cont ] );
-
- // Set Size
- gATA_PRDTs[ cont ].Bytes = Count * SECTOR_SIZE;
-
- // Get Port Base
- base = ATA_GetBasePort(Disk);
-
- // Set up transfer
- outb(base+0x01, 0x00);
- if( Address > 0x0FFFFFFF ) // Use LBA48
- {
- outb(base+0x6, 0x40 | (disk << 4));
- outb(base+0x2, 0 >> 8); // Upper Sector Count
- outb(base+0x3, Address >> 24); // Low 2 Addr
- outb(base+0x3, Address >> 28); // Mid 2 Addr
- outb(base+0x3, Address >> 32); // High 2 Addr
- }
- else
- {
- outb(base+0x06, 0xE0 | (disk << 4) | ((Address >> 24) & 0x0F)); //Disk,Magic,High addr
- }
-
- outb(base+0x02, (Uint8) Count); // Sector Count
- outb(base+0x03, (Uint8) Address); // Low Addr
- outb(base+0x04, (Uint8) (Address >> 8)); // Middle Addr
- outb(base+0x05, (Uint8) (Address >> 16)); // High Addr
- if( Address > 0x0FFFFFFF )
- outb(base+0x07, HDD_DMA_W48); // Write Command (LBA48)
- else
- outb(base+0x07, HDD_DMA_W28); // Write Command (LBA28)
-
- // Reset IRQ Flag
- gaATA_IRQs[cont] = 0;
-
- // Copy to output buffer
- memcpy( gATA_Buffers[cont], Buffer, Count*SECTOR_SIZE );
-
- // Start transfer
- ATA_int_BusMasterWriteByte( cont << 3, 1 ); // Write and start
-
- // Wait for transfer to complete
- while( gaATA_IRQs[cont] == 0 ) Threads_Yield();
-
- // Complete Transfer
- ATA_int_BusMasterWriteByte( cont << 3, 0 ); // Write and stop
-
- // Release controller lock
- RELEASE( &giaATA_ControllerLock[ cont ] );
-
- return 1;
-}
-
-/**
- * \fn void ATA_IRQHandlerPri(int unused)
- */
-void ATA_IRQHandlerPri(int unused)
-{
- Uint8 val;
-
- // IRQ bit set for Primary Controller
- val = ATA_int_BusMasterReadByte( 0x2 );
- LOG("IRQ val = 0x%x", val);
- if(val & 4) {
- LOG("IRQ hit (val = 0x%x)", val);
- ATA_int_BusMasterWriteByte( 0x2, 4 );
- gaATA_IRQs[0] = 1;
- return ;
- }
-}
-
-/**
- * \fn void ATA_IRQHandlerSec(int unused)
- */
-void ATA_IRQHandlerSec(int unused)
-{
- Uint8 val;
- // IRQ bit set for Secondary Controller
- val = ATA_int_BusMasterReadByte( 0xA );
- LOG("IRQ val = 0x%x", val);
- if(val & 4) {
- LOG("IRQ hit (val = 0x%x)", val);
- ATA_int_BusMasterWriteByte( 0xA, 4 );
- gaATA_IRQs[1] = 1;
- return ;
- }
-}
-
-/**
- * \fn Uint8 ATA_int_BusMasterReadByte(int Ofs)
- */
-Uint8 ATA_int_BusMasterReadByte(int Ofs)
-{
- if( gATA_BusMasterBase & 1 )
- return inb( (gATA_BusMasterBase & ~1) + Ofs );
- else
- return *(Uint8*)(gATA_BusMasterBasePtr + Ofs);
-}
-
-/**
- * \fn void ATA_int_BusMasterWriteByte(int Ofs, Uint8 Value)
- * \brief Writes a byte to a Bus Master Register
- */
-void ATA_int_BusMasterWriteByte(int Ofs, Uint8 Value)
-{
- if( gATA_BusMasterBase & 1 )
- outb( (gATA_BusMasterBase & ~1) + Ofs, Value );
- else
- *(Uint8*)(gATA_BusMasterBasePtr + Ofs) = Value;
-}
-
-/**
- * \fn void ATA_int_BusMasterWriteDWord(int Ofs, Uint32 Value)
- * \brief Writes a dword to a Bus Master Register
- */
-void ATA_int_BusMasterWriteDWord(int Ofs, Uint32 Value)
-{
-
- if( gATA_BusMasterBase & 1 )
- outd( (gATA_BusMasterBase & ~1) + Ofs, Value );
- else
- *(Uint32*)(gATA_BusMasterBasePtr + Ofs) = Value;
-}
git.ucc.asn.au / tpg / acess2.git / blobdiff
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