C++ (Cpp) pcihinv Examples

Example #1

File: ether.c Project: Akheon23/nix-os

int
etherinit(void)
{
	Ether *ctlr;
	int ctlrno, i, mask, n, x;

	fmtinstall('E', eipfmt);

	if (getconf("*fakeintrs") != nil || getconf("*9loadfakeintrs") != nil)
		startfakeintrs();
	etherdetach = xetherdetach;
	mask = 0;
	for(ctlrno = 0; ctlrno < MaxEther; ctlrno++){
		ctlr = &ether[ctlrno];
		memset(ctlr, 0, sizeof(Ether));
		if(iniread && isaconfig("ether", ctlrno, ctlr) == 0)
			continue;

		for(n = 0; ethercards[n].type; n++){
			if(!iniread){
				if(ethercards[n].noprobe)
					continue;
				memset(ctlr, 0, sizeof(Ether));
				strcpy(ctlr->type, ethercards[n].type);
			}
			else if(cistrcmp(ethercards[n].type, ctlr->type))
				continue;
			ctlr->ctlrno = ctlrno;

			x = splhi();
			if((*ethercards[n].reset)(ctlr)){
				splx(x);
				if(iniread)
					break;
				else
					continue;
			}

			ctlr->state = 1;		/* card found */
			mask |= 1<<ctlrno;
			if(ctlr->irq == 2)
				ctlr->irq = 9;
			setvec(VectorPIC + ctlr->irq, ctlr->interrupt, ctlr);

			print("ether#%d: %s: port 0x%luX irq %lud",
				ctlr->ctlrno, ctlr->type, ctlr->port, ctlr->irq);
			if(ctlr->mem)
				print(" addr 0x%luX", ctlr->mem & ~KZERO);
			if(ctlr->size)
				print(" size 0x%luX", ctlr->size);
			print(": %E\n", ctlr->ea);
		
			if(ctlr->nrb == 0)
				ctlr->nrb = Nrb;
			ctlr->rb = ialloc(sizeof(RingBuf)*ctlr->nrb, 0);
			if(ctlr->ntb == 0)
				ctlr->ntb = Ntb;
			ctlr->tb = ialloc(sizeof(RingBuf)*ctlr->ntb, 0);

			ctlr->rh = 0;
			ctlr->ri = 0;
			for(i = 0; i < ctlr->nrb; i++)
				ctlr->rb[i].owner = Interface;
		
			ctlr->th = 0;
			ctlr->ti = 0;
			for(i = 0; i < ctlr->ntb; i++)
				ctlr->tb[i].owner = Host;

			splx(x);
			break;
		}
	}
	if (mask == 0) {
		print("no ethernet interfaces recognised\n");
		pcihinv(nil, Pcibcnet);
	}
	return mask;
}

Example #2

File: pci.c Project: Harvey-OS/harvey

static void
pcicfginit(void)
{
	int sbno, bno, n;
	Pcidev **list, *p;

	if(pcicfgmode != -1)
		return;
	lock(&pcicfginitlock);
	if(pcicfgmode != -1){
		unlock(&pcicfginitlock);
		return;
	}

	fmtinstall('T', tbdffmt);

	/*
	 * Try to determine if PCI Mode1 configuration implemented.
	 * (Bits [30:24] of PciADDR must be 0, according to the spec.)
	 * Mode2 won't appear in 64-bit machines.
	 */
	n = inl(PciADDR);
	if(!(n & 0x7F000000)){
		outl(PciADDR, 0x80000000);
		outb(PciADDR+3, 0);
		if(inl(PciADDR) & 0x80000000)
			pcicfgmode = 1;
	}
	outl(PciADDR, n);

	if(pcicfgmode < 0){
		unlock(&pcicfginitlock);
		return;
	}

	list = &pciroot;
	for(bno = 0; bno <= Maxbus; bno++) {
		sbno = bno;
		bno = pcilscan(bno, "0.0.0", list);

		while(*list)
			list = &(*list)->link;
		if(sbno != 0)
			continue;
		/*
		 * If we have found a PCI-to-Cardbus bridge, make sure
		 * it has no valid mappings anymore.
		 */
		for(p = pciroot; p != nil; p = p->link){
			if (p->ccrb == 6 && p->ccru == 7) {
				/* reset the cardbus */
				pcicfgw16(p, PciBCR, 0x40 | pcicfgr16(p, PciBCR));
				delay(50);
			}
		}
	}

	pcireservemem();
	unlock(&pcicfginitlock);

	// Bring the virtio devices live.
	
	virtiosetup();

	//if(getconf("*pcihinv"))
	pcihinv(nil);
}