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

Rev	Author	Line No.	Line
4522	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
7250	hidnplayr	3	;; Copyright (C) KolibriOS team 2004-2018. All rights reserved. ;;
4522	hidnplayr	4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; GNU GENERAL PUBLIC LICENSE ;;
		7	;; Version 2, June 1991 ;;
		8	;; ;;
		9	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		10
		11	struct PCI_header
		12
5066	hidnplayr	13	vendor_id dw ? ; 0x00
		14	device_id dw ? ; 0x02
		15	command dw ? ; 0x04
		16	status dw ? ; 0x06
		17	revision_id db ? ; 0x08
		18	prog_if db ? ; 0x09
		19	subclass db ? ; 0x0A
		20	class_code db ? ; 0x0B
		21	cache_line_size db ? ; 0x0C
		22	latency_timer db ? ; 0x0D
		23	header_type db ? ; 0x0E
		24	bist db ? ; 0x0F
4522	hidnplayr	25
		26	ends
		27
		28	struct PCI_header00 PCI_header
		29
5066	hidnplayr	30	base_addr_0 dd ? ; 0x10
		31	base_addr_1 dd ? ; 0x14
		32	base_addr_2 dd ? ; 0x18
		33	base_addr_3 dd ? ; 0x1C
		34	base_addr_4 dd ? ; 0x20
		35	base_addr_5 dd ? ; 0x24
		36	cardbus_cis_ptr dd ? ; 0x28
		37	subsys_vendor dw ? ; 0x2C
		38	subsys_id dw ? ; 0x2E
		39	exp_rom_addr dd ? ; 0x30
		40	cap_ptr db ? ; 0x34
		41	rb 7 ; reserved
		42	interrupt_line db ? ; 0x3C
		43	interrupt_pin db ? ; 0x3D
		44	min_grant db ? ; 0x3E
		45	max_latency db ? ; 0x3F
4522	hidnplayr	46
		47	ends
		48
5066	hidnplayr	49	struct PCI_header01 PCI_header
		50
		51	base_addr_0 dd ? ; 0x10
		52	base_addr_1 dd ? ; 0x14
		53	prim_bus_nr db ? ; 0x18
		54	sec_bus_nr db ? ; 0x19
		55	sub_bus_nr db ? ; 0x1A
		56	sec_lat_tmr db ? ; 0x1B
		57	io_base db ? ; 0x1C
		58	io_limit db ? ; 0x1D
		59	sec_status dw ? ; 0x1E
		60	mem_base dw ? ; 0x20
		61	mem_limit dw ? ; 0x22
		62	pref_mem_base dw ? ; 0x24
		63	pref_mem_limit dw ? ; 0x26
		64	pref_base_up dd ? ; 0x28
		65	pref_limit_up dd ? ; 0x2C
		66	io_base_up dw ? ; 0x30
		67	io_limit_up dw ? ; 0x32
		68	cap_ptr db ? ; 0x34
		69	rb 3 ; reserved
		70	exp_rom_addr dd ? ; 0x38
		71	interrupt_line db ? ; 0x3C
		72	interrupt_pin db ? ; 0x3E
		73	bridge_ctrl dw ? ; 0x3F
		74
		75	ends
		76
		77	struct PCI_header02 PCI_header
		78
		79	base_addr dd ? ; 0x10
		80	cap_list_offs db ? ; 0x14
		81	rb 1 ; reserved
		82	sec_stat dw ? ; 0x16
		83	pci_bus_nr db ? ; 0x18
		84	cardbus_bus_nr db ? ; 0x19
		85	sub_bus_nr db ? ; 0x1A
		86	cardbus_lat_tmr db ? ; 0x1B
		87	mbar_0 dd ? ; 0x1C
		88	mlimit_0 dd ? ; 0x20
		89	mbar_1 dd ? ; 0x24
		90	mlimit_1 dd ? ; 0x28
		91	iobar_0 dd ? ; 0x2C
		92	iolimit_0 dd ? ; 0x30
		93	iobar_1 dd ? ; 0x34
		94	iolimit_1 dd ? ; 0x38
		95	interrupt_line db ? ; 0x3C
		96	interrupt_pin db ? ; 0x3D
		97	bridge_ctrl dw ? ; 0x3E
		98	subs_did dw ? ; 0x40
		99	subs_vid dw ? ; 0x42
		100	legacy_bar dd ? ; 0x44
		101
		102	ends
		103
4522	hidnplayr	104	; Base address bits
7250	hidnplayr	105	PCI_BASE_ADDRESS_SPACE_IO = 0x01
		106	PCI_BASE_ADDRESS_IO_MASK = 0xFFFFFFFC
		107	PCI_BASE_ADDRESS_MEM_MASK = 0xFFFFFFF0
		108	PCI_BASE_ADDRESS_MEM_TYPE_MASK = 0x00000006
		109	PCI_BASE_ADDRESS_MEM_TYPE_32 = 0x0
		110	PCI_BASE_ADDRESS_MEM_TYPE_RESERVED = 0x02
		111	PCI_BASE_ADDRESS_MEM_TYPE_64 = 0x4
4522	hidnplayr	112
7250	hidnplayr	113
4522	hidnplayr	114	; command bits
5073	hidnplayr	115	PCI_CMD_PIO = 0x01 ; bit0: io space control
		116	PCI_CMD_MMIO = 0x02 ; bit1: memory space control
		117	PCI_CMD_MASTER = 0x04 ; bit2: device acts as a PCI master
7250	hidnplayr	118	PCI_CMD_INTX_DISABLE = 0x400 ; INTx emulation disable
4522	hidnplayr	119
5073	hidnplayr	120	; status bits
		121	PCI_STATUS_CAPA = 0x10 ; bit4: new capabilities available
4522	hidnplayr	122
5073	hidnplayr	123
4522	hidnplayr	124	if used PCI_find_io
		125	proc PCI_find_io stdcall bus, dev
		126
		127	push esi
		128	xor eax, eax
4532	hidnplayr	129	mov esi, PCI_header00.base_addr_0
4522	hidnplayr	130	.check:
		131	invoke PciRead32, [bus], [dev], esi
		132	test eax, PCI_BASE_ADDRESS_IO_MASK
		133	jz .inc
		134	test eax, PCI_BASE_ADDRESS_SPACE_IO
		135	jz .inc
		136	and eax, PCI_BASE_ADDRESS_IO_MASK
		137	pop esi
		138	ret
		139
		140	.inc:
		141	add esi, 4
4532	hidnplayr	142	cmp esi, PCI_header00.base_addr_5
4522	hidnplayr	143	jbe .check
		144	pop esi
		145	xor eax, eax
		146	ret
		147
		148	endp
		149	end if
		150
		151
7250	hidnplayr	152	if used PCI_find_mmio
		153	proc PCI_find_mmio stdcall bus, dev
4522	hidnplayr	154
7250	hidnplayr	155	push esi ebx
4522	hidnplayr	156	mov esi, PCI_header00.base_addr_0
		157	.check:
		158	invoke PciRead32, [bus], [dev], esi
7250	hidnplayr	159	DEBUGF 1, "BAR: 0x%x\n", eax
		160	mov ebx, eax
		161	test eax, PCI_BASE_ADDRESS_SPACE_IO ; MMIO address?
		162	jnz .next
		163	and ebx, PCI_BASE_ADDRESS_MEM_TYPE_MASK
		164	cmp bl, PCI_BASE_ADDRESS_MEM_TYPE_64
		165	je .is64
		166	cmp bl, PCI_BASE_ADDRESS_MEM_TYPE_32
		167	jne .next
		168	; Ok, we have a 32-bit BAR.
		169	and eax, PCI_BASE_ADDRESS_MEM_MASK
		170	pop ebx esi
		171	DEBUGF 1, "32-bit MMIO address found: 0x%x\n", eax
4522	hidnplayr	172	ret
		173
7250	hidnplayr	174	.is64:
		175	; Ok, we have a 64-bit BAR, check if the upper 32-bits are 0, then we can use it..
		176	push eax
4522	hidnplayr	177	add esi, 4
		178	cmp esi, PCI_header00.base_addr_5
7250	hidnplayr	179	ja .fail
		180	invoke PciRead32, [bus], [dev], esi
		181	test eax, eax
		182	pop eax
		183	jnz .next
		184	and eax, PCI_BASE_ADDRESS_MEM_MASK
		185	pop ebx esi
		186	DEBUGF 1, "64-bit MMIO address found: 0x00000000%x\n", eax
		187	ret
		188
		189	.next:
		190	add esi, 4
		191	cmp esi, PCI_header00.base_addr_5
4522	hidnplayr	192	jbe .check
7250	hidnplayr	193	.fail:
4522	hidnplayr	194	xor eax, eax
7250	hidnplayr	195	pop ebx esi
		196	DEBUGF 1, "No usable MMIO addresses found!\n"
4522	hidnplayr	197	ret
		198
		199	endp
		200	end if

Subversion Repositories Kolibri OS

(root)/drivers/pci.inc @ 7585 – Rev 7250