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Some NCR 53C810 fixes, NT 4.0 and Windows 98 SE now work again.

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This commit is contained in:
OBattler
2017-12-16 22:42:27 +01:00
parent 31153f20d4
commit 915e8b6496
1 changed files with 6 additions and 37 deletions
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43
src/scsi/scsi_ncr53c810.c
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@@ -10,7 +10,7 @@
* NCR and later Symbios and LSI. This controller was designed
* for the PCI bus.
*
* Version: @(#)scsi_ncr53c810.c 1.0.2 2017/12/16
* Version: @(#)scsi_ncr53c810.c 1.0.3 2017/12/16
*
* Authors: Paul Brook (QEMU)
* Artyom Tarasenko (QEMU)
@@ -419,32 +419,16 @@ static void lsi_read(LSIState *s, uint32_t addr, uint8_t *buf, uint32_t len)
ncr53c810_log("lsi_read(): %08X-%08X, length %i\n", addr, (addr + len - 1), len);
s->ncr_to_ncr = 1;
if (s->dmode & LSI_DMODE_SIOM) {
ncr53c810_log("NCR 810: Reading from I/O address %04X\n", (uint16_t) addr);
if ((addr & 0xFF00) == s->PCIBase) {
s->ncr_to_ncr = 1;
for (i = 0; i < len; i++)
buf[i] = lsi_reg_readb(s, addr & 0xFF);
s->ncr_to_ncr = 0;
return;
}
for (i = 0; i < len; i++)
buf[i] = inb((uint16_t) (addr + i));
} else {
ncr53c810_log("NCR 810: Reading from memory address %08X\n", addr);
if ((addr & 0xFFFFFF00) == s->MMIOBase) {
s->ncr_to_ncr = 1;
for (i = 0; i < len; i++)
buf[i] = lsi_reg_readb(s, addr & 0xFF);
s->ncr_to_ncr = 0;
return;
}
DMAPageRead(addr, buf, len);
}
s->ncr_to_ncr = 0;
}
static void lsi_write(LSIState *s, uint32_t addr, uint8_t *buf, uint32_t len)
@@ -453,32 +437,16 @@ static void lsi_write(LSIState *s, uint32_t addr, uint8_t *buf, uint32_t len)
ncr53c810_log("lsi_write(): %08X-%08X, length %i\n", addr, (addr + len - 1), len);
s->ncr_to_ncr = 1;
if (s->dmode & LSI_DMODE_DIOM) {
ncr53c810_log("NCR 810: Writing to I/O address %04X\n", (uint16_t) addr);
if ((addr & 0xFF00) == s->PCIBase) {
s->ncr_to_ncr = 1;
for (i = 0; i < len; i++)
lsi_reg_writeb(s, addr & 0xFF, buf[i]);
s->ncr_to_ncr = 0;
return;
}
for (i = 0; i < len; i++)
outb((uint16_t) (addr + i), buf[i]);
} else {
ncr53c810_log("NCR 810: Writing to memory address %08X\n", addr);
if ((addr & 0xFFFFFF00) == s->MMIOBase) {
s->ncr_to_ncr = 1;
for (i = 0; i < len; i++)
lsi_reg_writeb(s, addr & 0xFF, buf[i]);
s->ncr_to_ncr = 0;
return;
}
DMAPageWrite(addr, buf, len);
}
s->ncr_to_ncr = 0;
}
static inline uint32_t read_dword(LSIState *s, uint32_t addr)
@@ -2089,6 +2057,7 @@ static uint8_t lsi_reg_readb(LSIState *s, uint32_t offset)
if ((s->sstat1 & PHASE_MASK) == PHASE_MI) {
ncr53c810_log("NCR 810: Read SBDL %02X\n", s->msg[0]);
ret = s->msg[0];
break;
}
ncr53c810_log("NCR 810: Read SBDL 00\n");
ret = 0;