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BT-958D now correctly handles the BIOS using the PCI BAR, and I also fixed a stupid bug in scsi_device.c - the BT-958D BIOS will now boot from SCSI CD-ROM.

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This commit is contained in:
OBattler
2017-08-27 06:20:38 +02:00
parent e59e799ce7
commit cb7b1051d8
3 changed files with 43 additions and 50 deletions
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51
src/scsi/scsi_buslogic.c
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@@ -710,8 +710,6 @@ BuslogicInitializeAutoSCSIRam(Buslogic_t *bl, uint8_t safe)
HALR->structured.autoSCSIData.uAutoSCSIMaximumLUN = 7;
HALR->structured.autoSCSIData.fForceBusDeviceScanningOrder = 1;
HALR->structured.autoSCSIData.uReserved12 = 0x7f;
HALR->structured.autoSCSIData.fInt13Extension = safe ? 0 : 1;
HALR->structured.autoSCSIData.fCDROMBoot = safe ? 0 : 1;
HALR->structured.autoSCSIData.fMultiBoot = safe ? 0 : 1;
@@ -1904,7 +1902,7 @@ BuslogicWrite(uint16_t Port, uint8_t Val, void *p)
aModelName[0] = '9';
aModelName[1] = '5';
aModelName[2] = '8';
aModelName[3] = 'C';
aModelName[3] = 'D';
break;
}
cCharsToTransfer = bl->DataReplyLeft <= sizeof(aModelName)
@@ -2499,7 +2497,6 @@ uint8_t buslogic_pci_regs[256];
bar_t buslogic_pci_bar[3];
#if 0
static void
BuslogicBIOSUpdate(Buslogic_t *bl)
{
@@ -2514,20 +2511,19 @@ BuslogicBIOSUpdate(Buslogic_t *bl)
mem_mapping_enable(&bl->bios.mapping);
mem_mapping_set_addr(&bl->bios.mapping,
bl->bios_addr, bl->bios_size);
pclog("BT-946C: BIOS now at: %06X\n", bl->bios_addr);
pclog("BT-958D: BIOS now at: %06X\n", bl->bios_addr);
} else {
pclog("BT-946C: BIOS disabled\n");
pclog("BT-958D: BIOS disabled\n");
mem_mapping_disable(&bl->bios.mapping);
}
}
#endif
static uint8_t
BuslogicPCIRead(int func, int addr, void *p)
{
Buslogic_t *bl = (Buslogic_t *)p;
pclog("BT-946C: Reading register %02X\n", addr & 0xff);
pclog("BT-958D: Reading register %02X\n", addr & 0xff);
switch (addr) {
case 0x00:
@@ -2578,23 +2574,21 @@ BuslogicPCIRead(int func, int addr, void *p)
return 0x40;
case 0x2F:
return 0x10;
#if 0
case 0x30: /* PCI_ROMBAR */
pclog("BT-946C: BIOS BAR 00 = %02X\n", buslogic_pci_bar[2].addr_regs[0] & 0x01);
pclog("BT-958D: BIOS BAR 00 = %02X\n", buslogic_pci_bar[2].addr_regs[0] & 0x01);
return buslogic_pci_bar[2].addr_regs[0] & 0x01;
case 0x31: /* PCI_ROMBAR 15:11 */
pclog("BT-946C: BIOS BAR 01 = %02X\n", (buslogic_pci_bar[2].addr_regs[1] & bl->bios_mask));
return (buslogic_pci_bar[2].addr_regs[1] & bl->bios_mask);
pclog("BT-958D: BIOS BAR 01 = %02X\n", (buslogic_pci_bar[2].addr_regs[1] & bl->bios_mask));
return buslogic_pci_bar[2].addr_regs[1];
break;
case 0x32: /* PCI_ROMBAR 23:16 */
pclog("BT-946C: BIOS BAR 02 = %02X\n", buslogic_pci_bar[2].addr_regs[2]);
pclog("BT-958D: BIOS BAR 02 = %02X\n", buslogic_pci_bar[2].addr_regs[2]);
return buslogic_pci_bar[2].addr_regs[2];
break;
case 0x33: /* PCI_ROMBAR 31:24 */
pclog("BT-946C: BIOS BAR 03 = %02X\n", buslogic_pci_bar[2].addr_regs[3]);
pclog("BT-958D: BIOS BAR 03 = %02X\n", buslogic_pci_bar[2].addr_regs[3]);
return buslogic_pci_bar[2].addr_regs[3];
break;
#endif
case 0x3C:
return bl->Irq;
case 0x3D:
@@ -2611,7 +2605,7 @@ BuslogicPCIWrite(int func, int addr, uint8_t val, void *p)
Buslogic_t *bl = (Buslogic_t *)p;
uint8_t valxor;
pclog("BT-946C: Write value %02X to register %02X\n", val, addr & 0xff);
pclog("BT-958D: Write value %02X to register %02X\n", val, addr & 0xff);
switch (addr) {
case 0x04:
@@ -2689,19 +2683,17 @@ BuslogicPCIWrite(int func, int addr, uint8_t val, void *p)
}
}
return;
#if 0
case 0x30: /* PCI_ROMBAR */
case 0x31: /* PCI_ROMBAR */
case 0x32: /* PCI_ROMBAR */
case 0x33: /* PCI_ROMBAR */
buslogic_pci_bar[2].addr_regs[addr & 3] = val;
buslogic_pci_bar[2].addr_regs[1] &= bl->bios_mask;
buslogic_pci_bar[2].addr &= 0xffffe001;
bl->bios_addr = buslogic_pci_bar[2].addr;
pclog("BT-946C: BIOS BAR %02X = NOW %02X (%02X)\n", addr & 3, buslogic_pci_bar[2].addr_regs[addr & 3], val);
buslogic_pci_bar[2].addr &= 0xffffc001;
bl->bios_addr = buslogic_pci_bar[2].addr & 0xffffc000;
pclog("BT-958D: BIOS BAR %02X = NOW %02X (%02X)\n", addr & 3, buslogic_pci_bar[2].addr_regs[addr & 3], val);
BuslogicBIOSUpdate(bl);
return;
#endif
case 0x3C:
buslogic_pci_regs[addr] = val;
@@ -2804,8 +2796,8 @@ BuslogicInit(int chip)
break;
case CHIP_BUSLOGIC_PCI:
bios_rom_name = L"roms/scsi/buslogic/BT-958D_BIOS.rom";
bios_rom_size = 0x8000;
bios_rom_mask = 0x7fff;
bios_rom_size = 0x4000;
bios_rom_mask = 0x3fff;
has_autoscsi_rom = 1;
autoscsi_rom_name = L"roms/scsi/buslogic/BT-958D_AutoSCSI.rom";
autoscsi_rom_size = 0x8000;
@@ -2823,10 +2815,9 @@ BuslogicInit(int chip)
if (bl->has_bios)
{
bl->bios_size = 0x8000;
bl->bios_size = bios_rom_size;
bl->bios_mask = (bl->bios_size >> 8) & 0xff;
bl->bios_mask = (0x100 - bl->bios_mask) & 0xff;
bl->bios_mask = 0xffffc000;
rom_init(&bl->bios, bios_rom_name, 0xd8000, bios_rom_size, bios_rom_mask, 0, MEM_MAPPING_EXTERNAL);
@@ -2875,26 +2866,22 @@ BuslogicInit(int chip)
buslogic_pci_regs[0x07] = 2;
#endif
#if 0
/* Enable our BIOS space in PCI, if needed. */
if (bl->has_bios)
{
buslogic_pci_bar[2].addr = 0x000D8000;
buslogic_pci_bar[2].addr = 0xFFFFC000;
}
else
{
buslogic_pci_bar[2].addr = 0;
}
#endif
mem_mapping_add(&bl->mmio_mapping, 0xfffd0000, 0x20,
BuslogicMemRead, BuslogicMemReadW, BuslogicMemReadL,
BuslogicMemWrite, BuslogicMemWriteW, BuslogicMemWriteL,
NULL, MEM_MAPPING_EXTERNAL, bl);
mem_mapping_disable(&bl->mmio_mapping);
#if 0
mem_mapping_disable(&bl->bios.mapping);
#endif
}
pclog("Buslogic on port 0x%04X\n", bl->Base);