?? promise_ide.c
字號:
case 2:
drive_pci = 0x68;
status = pciConfigInLong(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&drive_conf /* data write from offset */
);
#if 0
if ((drive_conf != 0x004ff304) && (drive_conf != 0x004ff3c4)) {
goto chipset_is_set;
}
#endif
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&test1 /* data write from offset */
);
#if 1
if (!(test1 & SYNC_ERRDY_EN)) {
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
test1|SYNC_ERRDY_EN /* data write from offset */
);
}
#endif
break;
case 3:
drive_pci = 0x6c;
status = pciConfigInLong(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&drive_conf /* data write from offset */
);
#if 0
if ((drive_conf != 0x004ff304) && (drive_conf != 0x004ff3c4)) {
goto chipset_is_set;
}
#endif
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
0x68, /* offset into the configuration space */
&test1 /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&test2 /* data write from offset */
);
if ((test1 & SYNC_ERRDY_EN) && !(test2 & SYNC_ERRDY_EN)) {
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
test2|SYNC_ERRDY_EN /* data write from offset */
);
}
break;
default:
return ide_dma_off;
}
chipset_is_set:
// if (drive->media != ide_disk)
// return ide_dma_off_quietly;
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&AP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01, /* offset into the configuration space */
&BP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02, /* offset into the configuration space */
&CP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x03, /* offset into the configuration space */
&DP /* data write from offset */
);
if (pDrive->okIordy) { /* IORDY_EN */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
AP|IORDY_EN /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&AP /* data write from offset */
);
}
// look in id->word0 ?????
// if (drive->media == ide_disk) {} /* PREFETCH_EN */
if (pDrive->type == ATA_TYPE_ATA) {
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
AP|PREFETCH_EN /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&AP /* data write from offset */
);
}
/* hack set PIO mode 4 here */
AP = AP | 0x01;
BP = BP | 0x04;
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
AP /* data write from offset */
);
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci+1, /* offset into the configuration space */
BP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&AP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci+1, /* offset into the configuration space */
&BP /* data write from offset */
);
if ((BP & 0xF0) && (CP & 0x0F)) {
/* clear DMA modes of upper 842 bits of B Register */
/* clear PIO forced mode upper 1 bit of B Register */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01, /* offset into the configuration space */
BP & ~0xF0 /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01, /* offset into the configuration space */
&BP /* data write from offset */
);
/* clear DMA modes of lower 8421 bits of C Register */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02,/* offset into the configuration space */
CP & ~0x0F /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02,/* offset into the configuration space */
&CP /* data write from offset */
);
}
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci, /* offset into the configuration space */
&AP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01,/* offset into the configuration space */
&BP /* data write from offset */
);
status = pciConfigInByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02,/* offset into the configuration space */
&CP /* data write from offset */
);
udma_66 = 1;
udma_33 = (udma) ? udma_33 : 0;
if ((id->ultraDma & 0x0010) && (udma_66) && (udma_33)) {
if (!((id->ultraDma >> 8) & 16)) {
id->ultraDma &= ~0xFF00;
id->ultraDma |= 0x1010;
id->multiDma &= ~0x0F00;
id->singleDma &= ~0x0F00;
}
/* speed 8 == UDMA mode 4 == speed 6 plus cable */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01, /* offset into the configuration space */
BP|0x20 /* data write from offset */
);
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02, /* offset into the configuration space */
CP|0x01 /* data write from offset */
);
speed = ATA_DMA_ULTRA_W_4;
} else if ((id->ultraDma & 0x0008) && (udma_66) && (udma_33)) {
if (!((id->ultraDma >> 8) & 8)) {
id->ultraDma &= ~0xFF00;
id->ultraDma |= 0x0808;
id->multiDma &= ~0x0F00;
id->singleDma &= ~0x0F00;
}
/* speed 7 == UDMA mode 3 == speed 5 plus cable */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01, /* offset into the configuration space */
BP|0x40 /* data write from offset */
);
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02, /* offset into the configuration space */
CP|0x02 /* data write from offset */
);
speed = ATA_DMA_ULTRA_W_3;
} else if ((id->ultraDma & 0x0004) && (udma_33)) {
if (!((id->ultraDma >> 8) & 4)) {
id->ultraDma &= ~0x0F00;
id->ultraDma |= 0x0404;
id->multiDma &= ~0x0F00;
id->singleDma &= ~0x0F00;
}
/* speed 6 == UDMA mode 2 */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01,/* offset into the configuration space */
BP|0x20 /* data write from offset */
);
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x02,/* offset into the configuration space */
CP|0x01 /* data write from offset */
);
speed = ATA_DMA_ULTRA_W_2;
} else if ((id->ultraDma & 0x0002) && (udma_33)) {
if (!((id->ultraDma >> 8) & 2)) {
id->ultraDma &= ~0x0F00;
id->ultraDma |= 0x0202;
id->multiDma &= ~0x0F00;
id->singleDma &= ~0x0F00;
}
/* speed 5 == UDMA mode 1 */
status = pciConfigOutByte(
BusNo, /* bus number */
DeviceNo, /* device number */
FuncNo, /* function number */
drive_pci|0x01,/* offset into the configuration space */
BP|0x40 /* data write from offset */
);
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