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Prepared the Buslogic code for VLB and MCA SCSI controller emulation;

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The SCSI BIOS command handler now has a 64-head mode, active for MCA controllers.
This commit is contained in:
OBattler
2017-08-26 05:36:43 +02:00
parent 789fa9d566
commit 5b02d3a90b
3 changed files with 93 additions and 15 deletions
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104
src/scsi_buslogic.c
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@@ -519,6 +519,7 @@ static Buslogic_t *BuslogicResetDevice;
enum {
CHIP_BUSLOGIC_ISA,
CHIP_BUSLOGIC_MCA,
CHIP_BUSLOGIC_VLB,
CHIP_BUSLOGIC_PCI
};
@@ -593,6 +594,8 @@ BuslogicGetNVRFileName(Buslogic_t *bl)
return L"bt542b.nvr";
case CHIP_BUSLOGIC_MCA:
return L"bt640.nvr";
case CHIP_BUSLOGIC_VLB:
return L"bt445s.nvr";
case CHIP_BUSLOGIC_PCI:
return L"bt946c.nvr";
default:
@@ -615,10 +618,33 @@ BuslogicInitializeAutoSCSIRam(Buslogic_t *bl, uint8_t safe)
HALR->structured.autoSCSIData.cbInformation = 64;
HALR->structured.autoSCSIData.aHostAdaptertype[0] = ' ';
HALR->structured.autoSCSIData.aHostAdaptertype[1] = (bl->chip == CHIP_BUSLOGIC_PCI) ? '9' : '5';
HALR->structured.autoSCSIData.aHostAdaptertype[2] = '4';
HALR->structured.autoSCSIData.aHostAdaptertype[3] = (bl->chip == CHIP_BUSLOGIC_PCI) ? '6' : '2';
HALR->structured.autoSCSIData.aHostAdaptertype[4] = (bl->chip == CHIP_BUSLOGIC_PCI) ? 'C' : 'B';
switch (bl->chip)
{
case CHIP_BUSLOGIC_ISA:
HALR->structured.autoSCSIData.aHostAdaptertype[1] = '5';
HALR->structured.autoSCSIData.aHostAdaptertype[2] = '4';
HALR->structured.autoSCSIData.aHostAdaptertype[3] = '2';
HALR->structured.autoSCSIData.aHostAdaptertype[4] = 'B';
break;
case CHIP_BUSLOGIC_VLB:
HALR->structured.autoSCSIData.aHostAdaptertype[1] = '4';
HALR->structured.autoSCSIData.aHostAdaptertype[2] = '4';
HALR->structured.autoSCSIData.aHostAdaptertype[3] = '5';
HALR->structured.autoSCSIData.aHostAdaptertype[4] = 'S';
break;
case CHIP_BUSLOGIC_MCA:
HALR->structured.autoSCSIData.aHostAdaptertype[1] = '6';
HALR->structured.autoSCSIData.aHostAdaptertype[2] = '4';
HALR->structured.autoSCSIData.aHostAdaptertype[3] = '0';
HALR->structured.autoSCSIData.aHostAdaptertype[4] = ' ';
break;
case CHIP_BUSLOGIC_PCI:
HALR->structured.autoSCSIData.aHostAdaptertype[1] = '9';
HALR->structured.autoSCSIData.aHostAdaptertype[2] = '4';
HALR->structured.autoSCSIData.aHostAdaptertype[3] = '6';
HALR->structured.autoSCSIData.aHostAdaptertype[4] = 'C';
break;
}
HALR->structured.autoSCSIData.aHostAdaptertype[5] = ' ';
HALR->structured.autoSCSIData.fLevelSensitiveInterrupt = (bl->chip == CHIP_BUSLOGIC_PCI) ? 1 : 0;
@@ -1395,7 +1421,7 @@ static void BuslogicIDCheck(uint8_t id, uint8_t lun)
}
/* This returns the completion code. */
uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
uint8_t HACommand03Handler(uint8_t last_id, uint8_t max_heads, BIOSCMD *BiosCmd)
{
uint32_t dma_address;
int lba = (BiosCmd->cylinder << 9) + (BiosCmd->head << 5) + BiosCmd->sector;
@@ -1404,6 +1430,11 @@ uint8_t HACommand03Handler(uint8_t last_id, BIOSCMD *BiosCmd)
uint8_t ret = 0;
uint8_t cdb[12] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
if (max_heads == 64)
{
lba = (BiosCmd->cylinder << 11) + (BiosCmd->head << 5) + BiosCmd->sector;
}
SpecificLog("BIOS Command = 0x%02X\n", BiosCmd->command);
if ((BiosCmd->id > last_id) || (BiosCmd->lun > 7)) {
@@ -1949,7 +1980,7 @@ BuslogicWrite(uint16_t Port, uint8_t Val, void *p)
BiosCmd->lun = temp;
}
SpecificLog("C: %04X, H: %02X, S: %02X\n", BiosCmd->cylinder, BiosCmd->head, BiosCmd->sector);
bl->DataBuf[0] = HACommand03Handler(15, BiosCmd);
bl->DataBuf[0] = HACommand03Handler(15, (bl->chip == CHIP_BUSLOGIC_MCA) ? 64 : 32, BiosCmd);
SpecificLog("BIOS Completion/Status Code %x\n", bl->DataBuf[0]);
bl->DataReplyLeft = 1;
break;
@@ -2040,7 +2071,21 @@ BuslogicWrite(uint16_t Port, uint8_t Val, void *p)
* friendly with Adaptec hardware and upsetting the HBA state.
*/
ReplyISI->uCharacterD = 'D'; /* BusLogic model. */
ReplyISI->uHostBusType = (bl->chip == CHIP_BUSLOGIC_PCI) ? 'F' : 'A'; /* ISA bus. */
switch(bl->chip)
{
case CHIP_BUSLOGIC_ISA:
ReplyISI->uHostBusType = 'A';
break;
case CHIP_BUSLOGIC_MCA:
ReplyISI->uHostBusType = 'B';
break;
case CHIP_BUSLOGIC_VLB:
ReplyISI->uHostBusType = 'E';
break;
case CHIP_BUSLOGIC_PCI:
ReplyISI->uHostBusType = 'F';
break;
}
pclog("Return Setup Information: %d\n", bl->CmdBuf[0]);
}
@@ -2213,11 +2258,32 @@ BuslogicWrite(uint16_t Port, uint8_t Val, void *p)
/* The reply length is set by the guest and is found in the first byte of the command buffer. */
bl->DataReplyLeft = bl->CmdBuf[0];
memset(bl->DataBuf, 0, bl->DataReplyLeft);
if (bl->chip == CHIP_BUSLOGIC_PCI) {
aModelName[0] = '9';
aModelName[1] = '4';
aModelName[2] = '6';
aModelName[3] = 'C';
switch(bl->chip)
{
case CHIP_BUSLOGIC_ISA:
aModelName[0] = '5';
aModelName[1] = '4';
aModelName[2] = '2';
aModelName[3] = 'B';
break;
case CHIP_BUSLOGIC_MCA:
aModelName[0] = '6';
aModelName[1] = '4';
aModelName[2] = '0';
aModelName[3] = 0x00;
break;
case CHIP_BUSLOGIC_VLB:
aModelName[0] = '4';
aModelName[1] = '4';
aModelName[2] = '5';
aModelName[3] = 'S';
break;
case CHIP_BUSLOGIC_PCI:
aModelName[0] = '9';
aModelName[1] = '4';
aModelName[2] = '6';
aModelName[3] = 'C';
break;
}
cCharsToTransfer = bl->DataReplyLeft <= sizeof(aModelName)
? bl->DataReplyLeft
@@ -2245,7 +2311,19 @@ BuslogicWrite(uint16_t Port, uint8_t Val, void *p)
ReplyIESI = (ReplyInquireExtendedSetupInformation *)bl->DataBuf;
memset(ReplyIESI, 0, sizeof(ReplyInquireExtendedSetupInformation));
ReplyIESI->uBusType = (bl->chip == CHIP_BUSLOGIC_PCI) ? 'E' : 'A'; /* ISA style */
switch (bl->chip)
{
case CHIP_BUSLOGIC_ISA:
case CHIP_BUSLOGIC_VLB:
ReplyIESI->uBusType = 'A'; /* ISA style */
break;
case CHIP_BUSLOGIC_MCA:
ReplyIESI->uBusType = 'M'; /* MCA style */
break;
case CHIP_BUSLOGIC_PCI:
ReplyIESI->uBusType = 'E'; /* PCI style */
break;
}
ReplyIESI->uBiosAddress = 0xd8;
ReplyIESI->u16ScatterGatherLimit = 8192;
ReplyIESI->cMailbox = bl->MailboxCount;