WebSVN – Kolibri OS – Blame – /drivers/video/agp/pci.inc

Rev	Author	Line No.	Line
1029	serge	1
		2
		3
		4	int cap, int *ttl)
		5	{
		6	u8_t id;
		7
		8
		9	{
		10	pos = pciReadByte(pciTag, pos);
		11	if (pos < 0x40)
		12	break;
		13	pos &= ~3;
		14	id = pciReadByte(pciTag, pos + PCI_CAP_LIST_ID);
		15	if (id == 0xff)
		16	break;
		17	if (id == cap)
		18	return pos;
		19	pos += PCI_CAP_LIST_NEXT;
		20	}
		21	return 0;
		22	}
		23
		24
		25	{
		26	int ttl = PCI_FIND_CAP_TTL;
		27
		28
		29	}
		30
		31
		32	{
		33	u16_t status;
		34	u8_t hdr_type;
		35
		36
		37	if (!(status & PCI_STATUS_CAP_LIST))
		38	return 0;
		39
		40
		41	switch (hdr_type)
		42	{
		43	case PCI_HEADER_TYPE_NORMAL:
		44	case PCI_HEADER_TYPE_BRIDGE:
		45	return PCI_CAPABILITY_LIST;
		46	case PCI_HEADER_TYPE_CARDBUS:
		47	return PCI_CB_CAPABILITY_LIST;
		48	default:
		49	return 0;
		50	}
		51	return 0;
		52	}
		53
		54
		55
		56	{
		57	int pos;
		58
		59
		60	if (pos)
		61	pos = __pci_find_next_cap(pciTag, pos, cap);
		62
		63
		64	}
		65
		66
		67
		68	{
		69	u32_t bus, last_bus;
		70	PCITAG tag;
		71
		72
		73	return -1;
		74
		75
		76	{
		77	u32_t devfn;
		78
		79
		80	{
		81	u16_t devclass;
		82
		83
		84
		85
		86	continue;
		87
		88
		89	};
		90	};
		91	return -1;
		92	};
		93
		94
		95
		96	{
		97	u32_t bus, last_bus;
		98	u32_t devfn;
		99
		100
		101	return -1;
		102
		103
		104	devfn = PCI_DFN_FROM_TAG(from);
		105
		106
		107
		108
		109	{
		110	for(;devfn < 256;devfn++)
		111	{
		112	u32_t tmp;
		113	u32_t dev_vendor;
		114	u32_t dev_id;
		115
		116
		117
		118
		119	dev_id = tmp >> 16;
		120
		121
		122	return pciTag(bus,(devfn>>3)&0x1F,devfn&0x7);
		123	};
		124	};
		125	return -1;
		126	}
		127	>
		128

Subversion Repositories Kolibri OS