WebSVN – Kolibri OS – Blame – /drivers/ethernet/pcnet32.asm

Rev	Author	Line No.	Line
3545	hidnplayr	1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		2	;; ;;
		3	;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;;
		4	;; Distributed under terms of the GNU General Public License ;;
		5	;; ;;
		6	;; AMD PCnet driver for KolibriOS ;;
		7	;; ;;
		8	;; By hidnplayr & clevermouse ;;
		9	;; ;;
		10	;; Based on the PCnet32 driver for MenuetOS, by Jarek Pelczar ;;
		11	;; ;;
		12	;; GNU GENERAL PUBLIC LICENSE ;;
		13	;; Version 2, June 1991 ;;
		14	;; ;;
		15	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		16
		17	format MS COFF
		18
		19	API_VERSION = 0x01000100
		20
		21	DEBUG = 1
		22	__DEBUG__ = 1
		23	__DEBUG_LEVEL__ = 2
		24
		25	MAX_DEVICES = 4
		26	MAX_ETH_FRAME_SIZE = 1514
		27
		28	TX_RING_SIZE = 4
		29	RX_RING_SIZE = 4
		30
		31	include '../proc32.inc'
		32	include '../imports.inc'
		33	include '../fdo.inc'
		34	include '../netdrv.inc'
		35
		36	public START
		37	public service_proc
		38	public version
		39
		40
		41	PORT_AUI = 0x00
		42	PORT_10BT = 0x01
		43	PORT_GPSI = 0x02
		44	PORT_MII = 0x03
		45	PORT_PORTSEL = 0x03
		46	PORT_ASEL = 0x04
		47	PORT_100 = 0x40
		48	PORT_FD = 0x80
		49
		50	DMA_MASK = 0xffffffff
		51
		52	LOG_TX_BUFFERS = 2 ; FIXME
		53	LOG_RX_BUFFERS = 2
		54
		55	TX_RING_MOD_MASK = (TX_RING_SIZE-1)
		56	TX_RING_LEN_BITS = (LOG_TX_BUFFERS shl 12)
		57
		58	RX_RING_MOD_MASK = (RX_RING_SIZE-1)
		59	RX_RING_LEN_BITS = (LOG_RX_BUFFERS shl 4)
		60
		61	PKT_BUF_SZ = 1544
		62
		63	WIO_RDP = 0x10
		64	WIO_RAP = 0x12
		65	WIO_RESET = 0x14
		66	WIO_BDP = 0x16
		67
		68	DWIO_RDP = 0x10
		69	DWIO_RAP = 0x14
		70	DWIO_RESET = 0x18
		71	DWIO_BDP = 0x1C
		72
		73	; CSR registers
		74
		75	CSR_CSR = 0x00
		76	CSR_IAB0 = 0x01
		77	CSR_IAB1 = 0x02
		78	CSR_IMR = 0x03
		79	CSR_TFEAT = 0x04
		80	CSR_EXTCTL1 = 0x05
		81	CSR_DTBLLEN = 0x06
		82	CSR_EXTCTL2 = 0x07
		83	CSR_MAR0 = 0x08
		84	CSR_MAR1 = 0x09
		85	CSR_MAR2 = 0x0A
		86	CSR_MAR3 = 0x0B
		87	CSR_PAR0 = 0x0C
		88	CSR_PAR1 = 0x0D
		89	CSR_PAR2 = 0x0E
		90	CSR_MODE = 0x0F
		91	CSR_RXADDR0 = 0x18
		92	CSR_RXADDR1 = 0x19
		93	CSR_TXADDR0 = 0x1E
		94	CSR_TXADDR1 = 0x1F
		95	CSR_TXPOLL = 0x2F
		96	CSR_RXPOLL = 0x31
		97	CSR_RXRINGLEN = 0x4C
		98	CSR_TXRINGLEN = 0x4E
		99	CSR_DMACTL = 0x50
		100	CSR_BUSTIMER = 0x52
		101	CSR_MEMERRTIMEO = 0x64
		102	CSR_ONNOWMISC = 0x74
		103	CSR_ADVFEAT = 0x7A
		104	CSR_MACCFG = 0x7D
		105	CSR_CHIPID0 = 0x58
		106	CSR_CHIPID1 = 0x59
		107
		108	; Control and Status Register (CSR0)
		109
		110	CSR_INIT = 1 shl 0
		111	CSR_START = 1 shl 1
		112	CSR_STOP = 1 shl 2
		113	CSR_TX = 1 shl 3
		114	CSR_TXON = 1 shl 4
		115	CSR_RXON = 1 shl 5
		116	CSR_INTEN = 1 shl 6
		117	CSR_INTR = 1 shl 7
		118	CSR_IDONE = 1 shl 8
		119	CSR_TINT = 1 shl 9
		120	CSR_RINT = 1 shl 10
		121	CSR_MERR = 1 shl 11
		122	CSR_MISS = 1 shl 12
		123	CSR_CERR = 1 shl 13
		124
		125	; Interrupt masks and deferral control (CSR3)
		126
		127	IMR_BSWAP = 0x0004
		128	IMR_ENMBA = 0x0008 ; enable modified backoff alg
		129	IMR_DXMT2PD = 0x0010
		130	IMR_LAPPEN = 0x0020 ; lookahead packet processing enb
		131	IMR_DXSUFLO = 0x0040 ; disable TX stop on underflow
		132	IMR_IDONE = 0x0100
		133	IMR_TINT = 0x0200
		134	IMR_RINT = 0x0400
		135	IMR_MERR = 0x0800
		136	IMR_MISS = 0x1000
		137
		138	IMR = IMR_IDONE ; IMR_TINT + IMR_RINT + IMR_MERR + IMR_MISS ;+ IMR_IDONE
		139
		140	; Test and features control (CSR4)
		141
		142	TFEAT_TXSTRTMASK = 0x0004
		143	TFEAT_TXSTRT = 0x0008
		144	TFEAT_RXCCOFLOWM = 0x0010 ; Rx collision counter oflow
		145	TFEAT_RXCCOFLOW = 0x0020
		146	TFEAT_UINT = 0x0040
		147	TFEAT_UINTREQ = 0x0080
		148	TFEAT_MISSOFLOWM = 0x0100
		149	TFEAT_MISSOFLOW = 0x0200
		150	TFEAT_STRIP_FCS = 0x0400
		151	TFEAT_PAD_TX = 0x0800
		152	TFEAT_TXDPOLL = 0x1000
		153	TFEAT_DMAPLUS = 0x4000
		154
		155	; Extended control and interrupt 1 (CSR5)
		156
		157	EXTCTL1_SPND = 0x0001 ; suspend
		158	EXTCTL1_MPMODE = 0x0002 ; magic packet mode
		159	EXTCTL1_MPENB = 0x0004 ; magic packet enable
		160	EXTCTL1_MPINTEN = 0x0008 ; magic packet interrupt enable
		161	EXTCTL1_MPINT = 0x0010 ; magic packet interrupt
		162	EXTCTL1_MPPLBA = 0x0020 ; magic packet phys. logical bcast
		163	EXTCTL1_EXDEFEN = 0x0040 ; excessive deferral interrupt enb.
		164	EXTCTL1_EXDEF = 0x0080 ; excessive deferral interrupt
		165	EXTCTL1_SINTEN = 0x0400 ; system interrupt enable
		166	EXTCTL1_SINT = 0x0800 ; system interrupt
		167	EXTCTL1_LTINTEN = 0x4000 ; last TX interrupt enb
		168	EXTCTL1_TXOKINTD = 0x8000 ; TX OK interrupt disable
		169
		170	; RX/TX descriptor len (CSR6)
		171
		172	DTBLLEN_RLEN = 0x0F00
		173	DTBLLEN_TLEN = 0xF000
		174
		175	; Extended control and interrupt 2 (CSR7)
		176
		177	EXTCTL2_MIIPDTINTE = 0x0001
		178	EXTCTL2_MIIPDTINT = 0x0002
		179	EXTCTL2_MCCIINTE = 0x0004
		180	EXTCTL2_MCCIINT = 0x0008
		181	EXTCTL2_MCCINTE = 0x0010
		182	EXTCTL2_MCCINT = 0x0020
		183	EXTCTL2_MAPINTE = 0x0040
		184	EXTCTL2_MAPINT = 0x0080
		185	EXTCTL2_MREINTE = 0x0100
		186	EXTCTL2_MREINT = 0x0200
		187	EXTCTL2_STINTE = 0x0400
		188	EXTCTL2_STINT = 0x0800
		189	EXTCTL2_RXDPOLL = 0x1000
		190	EXTCTL2_RDMD = 0x2000
		191	EXTCTL2_RXFRTG = 0x4000
		192	EXTCTL2_FASTSPNDE = 0x8000
		193
		194	; Mode (CSR15)
		195
		196	MODE_RXD = 0x0001 ; RX disable
		197	MODE_TXD = 0x0002 ; TX disable
		198	MODE_LOOP = 0x0004 ; loopback enable
		199	MODE_TXCRCD = 0x0008
		200	MODE_FORCECOLL = 0x0010
		201	MODE_RETRYD = 0x0020
		202	MODE_INTLOOP = 0x0040
		203	MODE_PORTSEL = 0x0180
		204	MODE_RXVPAD = 0x2000
		205	MODE_RXNOBROAD = 0x4000
		206	MODE_PROMISC = 0x8000
		207
		208	; BCR (Bus Control Registers)
		209
		210	BCR_MMRA = 0x00 ; Master Mode Read Active
		211	BCR_MMW = 0x01 ; Master Mode Write Active
		212	BCR_MISCCFG = 0x02
		213	BCR_LED0 = 0x04
		214	BCR_LED1 = 0x05
		215	BCR_LED2 = 0x06
		216	BCR_LED3 = 0x07
		217	BCR_DUPLEX = 0x09
		218	BCR_BUSCTL = 0x12
		219	BCR_EECTL = 0x13
		220	BCR_SSTYLE = 0x14
		221	BCR_PCILAT = 0x16
		222	BCR_PCISUBVENID = 0x17
		223	BCR_PCISUBSYSID = 0x18
		224	BCR_SRAMSIZE = 0x19
		225	BCR_SRAMBOUND = 0x1A
		226	BCR_SRAMCTL = 0x1B
		227	BCR_MIICTL = 0x20
		228	BCR_MIIADDR = 0x21
		229	BCR_MIIDATA = 0x22
		230	BCR_PCIVENID = 0x23
		231	BCR_PCIPCAP = 0x24
		232	BCR_DATA0 = 0x25
		233	BCR_DATA1 = 0x26
		234	BCR_DATA2 = 0x27
		235	BCR_DATA3 = 0x28
		236	BCR_DATA4 = 0x29
		237	BCR_DATA5 = 0x2A
		238	BCR_DATA6 = 0x2B
		239	BCR_DATA7 = 0x2C
		240	BCR_ONNOWPAT0 = 0x2D
		241	BCR_ONNOWPAT1 = 0x2E
		242	BCR_ONNOWPAT2 = 0x2F
		243	BCR_PHYSEL = 0x31
		244
		245	; RX status register
		246
		247	RXSTAT_BPE = 0x0080 ; bus parity error
		248	RXSTAT_ENP = 0x0100 ; end of packet
		249	RXSTAT_STP = 0x0200 ; start of packet
		250	RXSTAT_BUFF = 0x0400 ; buffer error
		251	RXSTAT_CRC = 0x0800 ; CRC error
		252	RXSTAT_OFLOW = 0x1000 ; rx overrun
		253	RXSTAT_FRAM = 0x2000 ; framing error
		254	RXSTAT_ERR = 0x4000 ; error summary
		255	RXSTAT_OWN = 0x8000
		256
		257	; TX status register
		258
		259	TXSTAT_TRC = 0x0000000F ; transmit retries
		260	TXSTAT_RTRY = 0x04000000 ; retry
		261	TXSTAT_LCAR = 0x08000000 ; lost carrier
		262	TXSTAT_LCOL = 0x10000000 ; late collision
		263	TXSTAT_EXDEF = 0x20000000 ; excessive deferrals
		264	TXSTAT_UFLOW = 0x40000000 ; transmit underrun
		265	TXSTAT_BUFF = 0x80000000 ; buffer error
		266
		267	TXCTL_OWN = 0x8000
		268	TXCTL_ERR = 0x4000 ; error summary
		269	TXCTL_ADD_FCS = 0x2000 ; add FCS to pkt
		270	TXCTL_MORE_LTINT = 0x1000
		271	TXCTL_ONE = 0x0800
		272	TXCTL_DEF = 0x0400
		273	TXCTL_STP = 0x0200
		274	TXCTL_ENP = 0x0100
		275	TXCTL_BPE = 0x0080
		276
		277	TXCTL_MBO = 0x0000F000
		278	TXCTL_BUFSZ = 0x00000FFF
		279
		280	;
		281
		282	MAX_PHYS = 32
		283
		284
		285	virtual at ebx
		286
		287	device:
		288
		289	ETH_DEVICE
		290
		291	; device specific
		292
		293	rb 0x100-(($ - device) and 0xff) ; align 256
		294	.private:
		295	.mode_ dw ?
		296	.tlen_rlen dw ?
		297	.phys_addr dp ?
		298	.reserved dw ?
		299	.filter dq ?
		300	.rx_ring_phys dd ?
		301	.tx_ring_phys dd ?
		302
		303	rb 0x100-(($ - device) and 0xff) ; align 256
		304	.rx_ring rb RX_RING_SIZE * descriptor.size
		305
		306	rb 0x100-(($ - device) and 0xff) ; align 256
		307	.tx_ring rb TX_RING_SIZE * descriptor.size
		308
		309	.cur_rx db ?
		310	.cur_tx db ?
		311	.last_tx db ?
		312	.options dd ?
		313	.full_duplex db ?
		314	.chip_version dw ?
		315	.mii db ?
		316	.ltint db ?
		317	.dxsuflo db ?
		318	.fset db ?
		319	.fdx db ?
		320
		321	.io_addr dd ?
		322	.irq_line db ?
		323	.pci_bus dd ?
		324	.pci_dev dd ?
		325
		326	.phy dw ?
		327
		328	.read_csr dd ?
		329	.write_csr dd ?
		330	.read_bcr dd ?
		331	.write_bcr dd ?
		332	.read_rap dd ?
		333	.write_rap dd ?
		334	.sw_reset dd ?
		335
		336	device_size = $ - device
		337
		338	end virtual
		339
		340	struc descriptor {
		341	.base dd ?
		342	.length dw ?
		343	.status dw ?
		344	.msg_length dw ?
		345	.misc dw ?
		346	.virtual dd ?
		347
		348	.size:
		349	}
		350
		351	virtual at 0
		352	descriptor descriptor
		353	end virtual
		354
		355
		356
		357
		358	section '.flat' code readable align 16
		359
		360	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		361	;; ;;
		362	;; proc START ;;
		363	;; ;;
		364	;; (standard driver proc) ;;
		365	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		366
		367	proc START stdcall, state:dword
		368
		369	cmp [state], 1
		370	jne .exit
		371
		372	.entry:
		373
		374	DEBUGF 1,"Loading %s driver\n", my_service
		375	stdcall RegService, my_service, service_proc
		376	ret
		377
		378	.fail:
		379	.exit:
		380	xor eax, eax
		381	ret
		382
		383	endp
		384
		385
		386	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		387	;; ;;
		388	;; proc SERVICE_PROC ;;
		389	;; ;;
		390	;; (standard driver proc) ;;
		391	;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		392
		393	align 4
		394	proc service_proc stdcall, ioctl:dword
		395
		396	mov edx, [ioctl]
		397	mov eax, [IOCTL.io_code]
		398
		399	;------------------------------------------------------
		400
		401	cmp eax, 0 ;SRV_GETVERSION
		402	jne @F
		403
		404	cmp [IOCTL.out_size], 4
		405	jb .fail
		406	mov eax, [IOCTL.output]
		407	mov [eax], dword API_VERSION
		408
		409	xor eax, eax
		410	ret
		411
		412	;------------------------------------------------------
		413	@@:
		414	cmp eax, 1 ;SRV_HOOK
		415	jne .fail
		416
		417	cmp [IOCTL.inp_size], 3 ; Data input must be at least 3 bytes
		418	jb .fail
		419
		420	mov eax, [IOCTL.input]
		421	cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given
		422	jne .fail ; other types arent supported for this card yet
		423
		424	; check if the device is already listed
		425
		426	mov ecx, [devices]
		427	test ecx, ecx
		428	jz .firstdevice
		429
		430	mov esi, device_list
		431	; mov eax, [IOCTL.input] ; get the pci bus and device numbers
		432	mov ax , [eax+1] ;
		433	.nextdevice:
		434	mov ebx, [esi]
		435	cmp al, byte[device.pci_bus]
		436	jne @f
		437	cmp ah, byte[device.pci_dev]
		438	je .find_devicenum ; Device is already loaded, let's find it's device number
		439	@@:
		440	add esi, 4
		441	loop .nextdevice
		442
		443	; This device doesnt have its own eth_device structure yet, lets create one
		444
		445	.firstdevice:
		446	cmp [devices], MAX_DEVICES ; First check if the driver can handle one more card
		447	jae .fail
		448
		449	allocate_and_clear ebx, device_size, .fail
		450
		451	; Fill in the direct call addresses into the struct
		452
		453	mov [device.reset], reset
		454	mov [device.transmit], transmit
		455	mov [device.unload], unload
		456	mov [device.name], my_service
		457
		458	; save the pci bus and device numbers
		459
		460	mov eax, [IOCTL.input]
		461	movzx ecx, byte[eax+1]
		462	mov [device.pci_bus], ecx
		463	movzx ecx, byte[eax+2]
		464	mov [device.pci_dev], ecx
		465
		466	; Now, it's time to find the base io addres of the PCI device
		467
		468	PCI_find_io
		469
		470	; We've found the io address, find IRQ now
		471
		472	PCI_find_irq
		473
		474	DEBUGF 1,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\
		475	[device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:4
		476
		477	; Ok, the eth_device structure is ready, let's probe the device
		478	; Because initialization fires IRQ, IRQ handler must be aware of this device
		479	mov eax, [devices] ; Add the device structure to our device list
		480	mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device)
		481	inc [devices] ;
		482
		483	call probe ; this function will output in eax
		484	test eax, eax
		485	jnz .destroy ; If an error occured, exit
		486
		487	mov [device.type], NET_TYPE_ETH
		488	call NetRegDev
		489	cmp eax, -1
		490	je .destroy
		491
		492	ret
		493
		494	; If the device was already loaded, find the device number and return it in eax
		495
		496	.find_devicenum:
		497	DEBUGF 1,"Trying to find device number of already registered device\n"
		498	call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx
		499	; into a device number in edi
		500	mov eax, edi ; Application wants it in eax instead
		501	DEBUGF 1,"Kernel says: %u\n", eax
		502	ret
		503
		504	; If an error occured, remove all allocated data and exit (returning -1 in eax)
		505
		506	.destroy:
		507	; todo: reset device into virgin state
		508
		509	dec [devices]
		510	.err:
		511	DEBUGF 1,"Error, removing all data !\n"
		512	stdcall KernelFree, ebx
		513
		514	.fail:
		515	or eax, -1
		516	ret
		517
		518	;------------------------------------------------------
		519	endp
		520
		521
		522	;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
		523	;; ;;
		524	;; Actual Hardware dependent code starts here ;;
		525	;; ;;
		526	;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;
		527
		528	align 4
		529	unload:
		530	; TODO: (in this particular order)
		531	;
		532	; - Stop the device
		533	; - Detach int handler
		534	; - Remove device from local list (RTL8139_LIST)
		535	; - call unregister function in kernel
		536	; - Remove all allocated structures and buffers the card used
		537
		538	or eax,-1
		539
		540	ret
		541
		542
		543	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		544	;;
		545	;; probe: enables the device (if it really is a PCnet device)
		546	;;
		547	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		548
		549	align 4
		550	probe:
		551
		552	mov edx, [device.io_addr]
		553
		554	call wio_reset
		555
		556	xor ecx, ecx
		557	call wio_read_csr
		558	cmp eax, 4
		559	jne .try_dwio
		560
		561	; Try Word I/O
		562	mov ax, 88
		563	add edx, WIO_RAP
		564	out dx, ax
		565	nop
		566	nop
		567	in ax, dx
		568	sub edx, WIO_RAP
		569	cmp ax, 88
		570	jne .try_dwio
		571
		572	call switch_to_wio
		573
		574	jmp .L1
		575
		576	.try_dwio:
		577	call dwio_reset
		578
		579	xor ecx, ecx
		580	call dwio_read_csr
		581	cmp eax, 4
		582	jne .no_dev
		583
		584	; Try Dword I/O
		585	add edx, DWIO_RAP
		586	mov eax, 88
		587	out dx, eax
		588	nop
		589	nop
		590	in eax, dx
		591	sub edx, DWIO_RAP
		592	and eax, 0xffff
		593	cmp eax, 88
		594	jne .no_dev
		595
		596	call switch_to_dwio
		597
		598	jmp .L1
		599
		600	.no_dev:
		601	DEBUGF 1,"PCnet device not found!\n"
		602	mov eax, 1
		603	ret
		604
		605	.L1:
		606	mov ecx, CSR_CHIPID0
		607	call [device.read_csr]
		608
		609	mov esi, eax
		610	shr esi, 12
		611
		612	and ax, 0xfff
		613	cmp ax, 3
		614	jne .no_dev
		615
		616	mov ecx, CSR_CHIPID1
		617	call [device.read_csr]
		618	shl eax, 4
		619	or eax, esi
		620	mov [device.chip_version], ax
		621
		622	mov [device.fdx], 0
		623	mov [device.mii], 0
		624	mov [device.fset], 0
		625	mov [device.dxsuflo], 0
		626	mov [device.ltint], 0
		627
		628	cmp ax, 0x2420
		629	je .L2
		630	cmp ax, 0x2430
		631	je .L2
		632
		633	mov [device.fdx], 1
		634
		635	cmp ax, 0x2621
		636	je .L4
		637	cmp ax, 0x2623
		638	je .L5
		639	cmp ax, 0x2624
		640	je .L6
		641	cmp ax, 0x2625
		642	je .L7
		643	cmp ax, 0x2626
		644	je .L8
		645	cmp ax, 0x2627
		646	je .L9
		647
		648	DEBUGF 1,"Invalid chip rev\n"
		649	jmp .no_dev
		650	.L2:
		651	mov [device.name], device_l2
		652	jmp .L10
		653	.L4:
		654	mov [device.name], device_l4
		655	; mov [device.fdx], 1
		656	jmp .L10
		657	.L5:
		658	mov [device.name], device_l5
		659	; mov [device.fdx], 1
		660	mov [device.mii], 1
		661	mov [device.fset], 1
		662	mov [device.ltint], 1
		663	jmp .L10
		664	.L6:
		665	mov [device.name], device_l6
		666	; mov [device.fdx], 1
		667	mov [device.mii], 1
		668	mov [device.fset], 1
		669	jmp .L10
		670	.L7:
		671	mov [device.name], device_l7
		672	; mov [device.fdx], 1
		673	mov [device.mii], 1
		674	jmp .L10
		675	.L8:
		676	mov [device.name], device_l8
		677	; mov [device.fdx], 1
		678	mov ecx, CSR_RXPOLL
		679	call dword [device.read_bcr]
		680	call dword [device.write_bcr]
		681	jmp .L10
		682	.L9:
		683	mov [device.name], device_l9
		684	; mov [device.fdx], 1
		685	mov [device.mii], 1
		686	.L10:
		687	DEBUGF 1,"device name: %s\n", [device.name]
		688
		689	cmp [device.fset], 1
		690	jne .L11
		691	mov ecx, BCR_BUSCTL
		692	call [device.read_bcr]
		693	or eax, 0x800
		694	call [device.write_bcr]
		695
		696	mov ecx, CSR_DMACTL
		697	call [device.read_csr]
		698	; and eax, 0xc00
		699	; or eax, 0xc00
		700	mov eax, 0xc00
		701	call [device.write_csr]
		702
		703	mov [device.dxsuflo],1
		704	mov [device.ltint],1
		705	.L11:
		706
		707	PCI_make_bus_master
		708
		709	mov [device.options], PORT_ASEL
		710	mov [device.mode_], MODE_RXD + MODE_TXD ; disable receive and transmit
		711	mov [device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
		712
		713	mov dword [device.filter], 0
		714	mov dword [device.filter+4], 0
		715
		716	align 4
		717	reset:
		718
		719	; attach int handler
		720
		721	movzx eax, [device.irq_line]
		722	DEBUGF 1,"Attaching int handler to irq %x\n", eax:1
		723	stdcall AttachIntHandler, eax, int_handler, dword 0
		724	test eax, eax
		725	jnz @f
		726	DEBUGF 1,"\nCould not attach int handler!\n"
		727	; or eax, -1
		728	; ret
		729	@@:
		730
		731	mov edx, [device.io_addr]
		732
		733	call [device.sw_reset]
		734
		735	; Switch pcnet32 to 32bit mode
		736	mov ecx, BCR_SSTYLE
		737	mov eax, 2
		738	call [device.write_bcr]
		739
		740	; set/reset autoselect bit
		741	mov ecx, BCR_MISCCFG
		742	call [device.read_bcr]
		743	and eax, not 2
		744	test [device.options], PORT_ASEL
		745	jz @f
		746	or eax, 2
		747	@@:
		748	call [device.write_bcr]
		749
		750	; Handle full duplex setting
		751	cmp byte [device.full_duplex], 0
		752	je .duplex_ok
		753	mov ecx, BCR_DUPLEX
		754	call [device.read_bcr]
		755	and eax, not 3
		756	test [device.options], PORT_FD
		757	jz @f
		758	or eax, 1
		759	cmp [device.options], PORT_FD or PORT_AUI
		760	jne .set_duplex
		761	or eax, 2
		762	jmp .set_duplex
		763	@@:
		764	test [device.options], PORT_ASEL
		765	jz .set_duplex
		766	cmp [device.chip_version], 0x2627
		767	jne .set_duplex
		768	or eax, 3
		769	.set_duplex:
		770	mov ecx, BCR_DUPLEX
		771	call [device.write_bcr]
		772	.duplex_ok:
		773
		774	; set/reset GPSI bit in test register
		775	mov ecx, 124
		776	call [device.read_csr]
		777	mov ecx, [device.options]
		778	and ecx, PORT_PORTSEL
		779	cmp ecx, PORT_GPSI
		780	jne @f
		781	or eax, 0x10
		782	@@:
		783	call [device.write_csr]
		784	cmp [device.mii], 0
		785	je .L6
		786	test [device.options], PORT_ASEL
		787	jnz .L6
		788	mov ecx, BCR_MIICTL
		789	call [device.read_bcr]
		790	and eax, not 0x38
		791	test [device.options], PORT_FD
		792	jz @f
		793	or eax, 0x10
		794	@@:
		795	test [device.options], PORT_100
		796	jz @f
		797	or eax, 0x08
		798	@@:
		799	call [device.write_bcr]
		800	jmp .L9
		801	.L6:
		802	test [device.options], PORT_ASEL
		803	jz .L9
		804	mov ecx, BCR_MIICTL
		805	DEBUGF 1,"ASEL, enable auto-negotiation\n"
		806	call [device.read_bcr]
		807	and eax, not 0x98
		808	or eax, 0x20
		809	call [device.write_bcr]
		810	.L9:
		811	cmp [device.ltint], 0
		812	je @f
		813	mov ecx, 5
		814	call [device.read_csr]
		815	or eax, (1 shl 14)
		816	call [device.write_csr]
		817	@@:
		818	mov eax, [device.options]
		819	and eax, PORT_PORTSEL
		820	shl eax, 7
		821	mov [device.mode_], ax
		822	mov dword [device.filter], -1
		823	mov dword [device.filter+4], -1
		824
		825
		826
		827	;-----------------------------
		828
		829	test [device.mii], 1
		830	jz .no_mii
		831
		832	mov [device.phy], 0
		833
		834	.mii_loop:
		835	mov ecx, MII_PHYSID1
		836	call mdio_read
		837	cmp ax, 0xffff
		838	je .next
		839
		840	DEBUGF 1, "0x%x\n", ax
		841
		842	mov ecx, MII_PHYSID2
		843	call mdio_read
		844	cmp ax, 0xffff
		845	je .next
		846
		847	DEBUGF 1, "0x%x\n", ax
		848
		849	jmp .got_phy
		850
		851	cmp [device.phy], 31
		852	jne .next
		853	mov ax, [device.chip_version]
		854	inc ax
		855	and ax, 0xfffe
		856	cmp ax, 0x2624 ; 79c971 & 79c972 have phantom phy at id 31
		857	je .got_phy
		858
		859	.next:
		860	inc [device.phy]
		861	cmp [device.phy], MAX_PHYS
		862	jb .mii_loop
		863
		864	DEBUGF 1, "No PHY found!\n"
		865
		866	or eax, -1
		867	ret
		868
		869	.got_phy:
		870	DEBUGF 1, "Found PHY at 0x%x\n", [device.phy]:4
		871
		872	.no_mii:
		873
		874	;-----------------------------------------------
		875
		876	call read_mac
		877
		878	lea esi, [device.mac]
		879	lea edi, [device.phys_addr]
		880	movsd
		881	movsw
		882
		883	call init_ring
		884
		885	mov edx, [device.io_addr] ; init ring destroys edx
		886
		887	lea eax, [device.private]
		888	GetRealAddr
		889	push eax
		890	and eax, 0xffff
		891	mov ecx, 1
		892	call [device.write_csr]
		893	pop eax
		894	shr eax, 16
		895	mov ecx, 2
		896	call [device.write_csr]
		897
		898	mov ecx, 4
		899	mov eax, 0x0915
		900	call [device.write_csr]
		901
		902	; Set the interrupt mask
		903	mov ecx, CSR_IMR
		904	mov eax, IMR
		905	call [device.write_csr]
		906
		907	; Initialise the device
		908	xor ecx, ecx
		909	mov eax, CSR_INIT
		910	call [device.write_csr]
		911
		912	mov esi, 100
		913	; xor ecx, ecx
		914	@@:
		915	call [device.read_csr]
		916	test ax, CSR_IDONE
		917	jnz @f
		918
		919	dec esi
		920	jnz @r
		921	DEBUGF 1,"Initialize timeout!\n"
		922	@@:
		923
		924	; Start the device and enable interrupts
		925	xor ecx, ecx
		926	mov eax, CSR_START + CSR_INTEN
		927	call [device.write_csr]
		928
		929	; Set the mtu, kernel will be able to send now
		930	mov [device.mtu], 1514
		931
		932	; get link status
		933	mov [device.state], ETH_LINK_UNKOWN
		934
		935	call check_media
		936
		937	DEBUGF 1,"reset complete\n"
		938	xor eax, eax
		939	ret
		940
		941
		942	align 4
		943	init_ring:
		944
		945	DEBUGF 1,"init ring\n"
		946
		947	lea edi, [device.rx_ring]
		948	mov eax, edi
		949	GetRealAddr
		950	mov [device.rx_ring_phys], eax
		951	mov ecx, RX_RING_SIZE
		952	.rx_init:
		953	push ecx
		954	stdcall KernelAlloc, PKT_BUF_SZ
		955	pop ecx
		956	mov [edi + descriptor.virtual], eax
		957	GetRealAddr
		958	mov [edi + descriptor.base], eax
		959	mov [edi + descriptor.length], - PKT_BUF_SZ
		960	mov [edi + descriptor.status], RXSTAT_OWN
		961	mov dword [edi + descriptor.msg_length], 0 ; also clears misc field
		962	add edi, descriptor.size
		963	dec ecx
		964	jnz .rx_init
		965
		966	lea edi, [device.tx_ring]
		967	mov eax, edi
		968	GetRealAddr
		969	mov [device.tx_ring_phys], eax
		970	mov ecx, TX_RING_SIZE
		971	.tx_init:
		972	mov [edi + descriptor.status], 0
		973	add edi, descriptor.size
		974	dec ecx
		975	jnz .tx_init
		976
		977	mov [device.tlen_rlen], (TX_RING_LEN_BITS or RX_RING_LEN_BITS)
		978
		979	mov [device.cur_tx], 0
		980	mov [device.last_tx], 0
		981	mov [device.cur_rx], 0
		982
		983	ret
		984
		985
		986
		987
		988	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		989	;; ;;
		990	;; Transmit ;;
		991	;; ;;
		992	;; In: buffer pointer in [esp+4] ;;
		993	;; size of buffer in [esp+8] ;;
		994	;; pointer to device structure in ebx ;;
		995	;; ;;
		996	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		997
		998	align 4
		999	transmit:
		1000	DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [esp+4], [esp+8]
		1001	mov eax, [esp+4]
		1002	DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\
		1003	[eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\
		1004	[eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\
		1005	[eax+13]:2,[eax+12]:2
		1006
		1007	cmp dword [esp+8], 1514
		1008	ja .nospace ; packet is too long
		1009	cmp dword [esp+8], 60
		1010	jb .nospace ; packet is too short
		1011
		1012	; check descriptor
		1013	lea edi, [device.tx_ring]
		1014	movzx eax, [device.cur_tx]
		1015	shl eax, 4
		1016	add edi, eax
		1017
		1018	test [edi + descriptor.status], TXCTL_OWN
		1019	jnz .nospace
		1020	; descriptor is free, use it
		1021	mov eax, [esp+4]
		1022	mov [edi + descriptor.virtual], eax
		1023	GetRealAddr
		1024	mov [edi + descriptor.base], eax
		1025	; set length
		1026	mov eax, [esp+8]
		1027	neg eax
		1028	mov [edi + descriptor.length], ax
		1029	; put to transfer queue
		1030	mov [edi + descriptor.status], TXCTL_OWN + TXCTL_STP + TXCTL_ENP
		1031
		1032	; trigger an immediate send
		1033	mov edx, [device.io_addr]
		1034	xor ecx, ecx ; CSR0
		1035	call [device.read_csr]
		1036	or eax, CSR_TX
		1037	call [device.write_csr]
		1038
		1039	; get next descriptor 0, 1, 2, 3, 0, 1, 2, 3, 0, 1, ...
		1040	inc [device.cur_tx]
		1041	and [device.cur_tx], TX_RING_SIZE - 1
		1042	DEBUGF 2," - Packet Sent! "
		1043
		1044	; Update stats
		1045	inc [device.packets_tx]
		1046	mov eax, [esp+8]
		1047	add dword [device.bytes_tx], eax
		1048	adc dword [device.bytes_tx + 4], 0
		1049
		1050	.finish:
		1051	DEBUGF 2," - Done!\n"
		1052	xor eax, eax
		1053	ret 8
		1054
		1055	.nospace:
		1056	DEBUGF 1, 'ERROR: no free transmit descriptors\n'
		1057	stdcall KernelFree, [esp+4]
		1058	or eax, -1
		1059	ret 8
		1060
		1061
		1062
		1063	;;;;;;;;;;;;;;;;;;;;;;;
		1064	;; ;;
		1065	;; Interrupt handler ;;
		1066	;; ;;
		1067	;;;;;;;;;;;;;;;;;;;;;;;
		1068
		1069	align 4
		1070	int_handler:
		1071
		1072	push ebx esi edi
		1073
		1074	DEBUGF 1,"\n%s int\n", my_service
		1075
		1076	; find pointer of device wich made IRQ occur
		1077
		1078	mov ecx, [devices]
		1079	test ecx, ecx
		1080	jz .nothing
		1081	mov esi, device_list
		1082	.nextdevice:
		1083	mov ebx, [esi]
		1084
		1085	mov edx, [device.io_addr]
		1086	push ecx
		1087	xor ecx, ecx ; CSR0
		1088	call [device.read_csr] ; get IRQ reason
		1089	call [device.write_csr] ; write it back to ACK
		1090	pop ecx
		1091	and ax, CSR_RINT or CSR_TINT
		1092	jnz .got_it
		1093	.continue:
		1094	add esi, 4
		1095	dec ecx
		1096	jnz .nextdevice
		1097	.nothing:
		1098	pop edi esi ebx
		1099	xor eax, eax
		1100
		1101	ret
		1102
		1103	.got_it:
		1104	DEBUGF 1,"Device: %x status: %x\n", ebx, eax:2
		1105
		1106	push ax
		1107	test ax, CSR_RINT
		1108	jz .not_receive
		1109
		1110	push ebx
		1111	.rx_loop:
		1112	pop ebx
		1113	movzx eax, [device.cur_rx]
		1114	shl eax, 4
		1115	lea edi, [device.rx_ring]
		1116	add edi, eax ; edi now points to current rx ring entry
		1117
		1118	mov ax, [edi + descriptor.status]
		1119	DEBUGF 1,"RX packet status: %x\n", eax:4
		1120
		1121	test ax, RXSTAT_OWN ; If this bit is set, the controller OWN's the packet, if not, we do
		1122	jnz .not_receive
		1123
		1124	test ax, RXSTAT_ENP
		1125	jz .not_receive
		1126
		1127	test ax, RXSTAT_STP
		1128	jz .not_receive
		1129
		1130	movzx ecx, [edi + descriptor.msg_length] ; get packet length in ecx
		1131	sub ecx, 4 ;
		1132
		1133	; Set pointers for ETH_input
		1134	push ebx
		1135
		1136	push .rx_loop ; return address
		1137	push ecx ; packet size
		1138	push [edi + descriptor.virtual] ; packet address
		1139
		1140	; Update stats
		1141	add dword [device.bytes_rx], ecx
		1142	adc dword [device.bytes_rx + 4], 0
		1143	inc [device.packets_rx]
		1144
		1145	; now allocate a new buffer
		1146	stdcall KernelAlloc, PKT_BUF_SZ ; Allocate a buffer for the next packet
		1147	mov [edi + descriptor.virtual], eax ; set virtual address
		1148	GetRealAddr
		1149	mov [edi + descriptor.base], eax ; and real address
		1150
		1151	; mov word [edi + descriptor.length], - PKT_BUF_SZ
		1152	mov [edi + descriptor.status], RXSTAT_OWN ; give it back to PCnet controller
		1153
		1154	inc [device.cur_rx] ; set next receive descriptor
		1155	and [device.cur_rx], RX_RING_SIZE - 1
		1156
		1157	jmp Eth_input
		1158
		1159	.not_receive:
		1160	pop ax
		1161
		1162	test ax, CSR_TINT
		1163	jz .not_transmit
		1164
		1165	.tx_loop:
		1166	lea edi, [device.tx_ring]
		1167	movzx eax, [device.last_tx]
		1168	shl eax, 4
		1169	add edi, eax
		1170
		1171	test [edi + descriptor.status], TXCTL_OWN
		1172	jnz .not_transmit
		1173
		1174	mov eax, [edi + descriptor.virtual]
		1175	test eax, eax
		1176	jz .not_transmit
		1177
		1178	mov [edi + descriptor.virtual], 0
		1179
		1180	DEBUGF 1,"Removing packet %x from memory\n", eax
		1181
		1182	stdcall KernelFree, eax
		1183
		1184	inc [device.last_tx]
		1185	and [device.last_tx], TX_RING_SIZE - 1
		1186	jmp .tx_loop
		1187
		1188	.not_transmit:
		1189	pop edi esi ebx
		1190	xor eax, eax
		1191	inc eax
		1192
		1193	ret
		1194
		1195
		1196
		1197
		1198	;;;;;;;;;;;;;;;;;;;;;;;
		1199	;; ;;
		1200	;; Write MAC address ;;
		1201	;; ;;
		1202	;;;;;;;;;;;;;;;;;;;;;;;
		1203
		1204	align 4
		1205	write_mac: ; in: mac pushed onto stack (as 3 words)
		1206
		1207	DEBUGF 1,"Writing MAC: %x-%x-%x-%x-%x-%x",[esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2
		1208
		1209	mov edx, [device.io_addr]
		1210	add dx, 2
		1211	xor eax, eax
		1212
		1213	mov ecx, CSR_PAR0
		1214	@@:
		1215	pop ax
		1216	call [device.write_csr]
		1217	DEBUGF 1,"."
		1218	inc ecx
		1219	cmp ecx, CSR_PAR2
		1220	jb @r
		1221
		1222	DEBUGF 1,"\n"
		1223
		1224	; Notice this procedure does not ret, but continues to read_mac instead.
		1225
		1226	;;;;;;;;;;;;;;;;;;;;;;
		1227	;; ;;
		1228	;; Read MAC address ;;
		1229	;; ;;
		1230	;;;;;;;;;;;;;;;;;;;;;;
		1231	align 4
		1232	read_mac:
		1233	DEBUGF 1,"Reading MAC"
		1234
		1235	mov edx, [device.io_addr]
		1236	add dx, 6
		1237	@@:
		1238	dec dx
		1239	dec dx
		1240	in ax, dx
		1241	push ax
		1242	DEBUGF 1,"."
		1243	cmp edx, [device.io_addr]
		1244	ja @r
		1245
		1246	DEBUGF 1," %x-%x-%x-%x-%x-%x\n",[esp+0]:2,[esp+1]:2,[esp+2]:2,[esp+3]:2,[esp+4]:2,[esp+5]:2
		1247
		1248	lea edi, [device.mac]
		1249	pop ax
		1250	stosw
		1251	pop ax
		1252	stosw
		1253	pop ax
		1254	stosw
		1255
		1256	ret
		1257
		1258	align 4
		1259	switch_to_wio:
		1260
		1261	DEBUGF 1,"Switching to 16-bit mode\n"
		1262
		1263	mov [device.read_csr], wio_read_csr
		1264	mov [device.write_csr], wio_write_csr
		1265	mov [device.read_bcr], wio_read_bcr
		1266	mov [device.write_bcr], wio_write_bcr
		1267	mov [device.read_rap], wio_read_rap
		1268	mov [device.write_rap], wio_write_rap
		1269	mov [device.sw_reset], wio_reset
		1270
		1271	ret
		1272
		1273	align 4
		1274	switch_to_dwio:
		1275
		1276	DEBUGF 1,"Switching to 32-bit mode\n"
		1277
		1278	mov [device.read_csr], dwio_read_csr
		1279	mov [device.write_csr], dwio_write_csr
		1280	mov [device.read_bcr], dwio_read_bcr
		1281	mov [device.write_bcr], dwio_write_bcr
		1282	mov [device.read_rap], dwio_read_rap
		1283	mov [device.write_rap], dwio_write_rap
		1284	mov [device.sw_reset], dwio_reset
		1285
		1286	ret
		1287
		1288
		1289	; ecx - index
		1290	; return:
		1291	; eax - data
		1292	align 4
		1293	wio_read_csr:
		1294
		1295	add edx, WIO_RAP
		1296	mov ax, cx
		1297	out dx, ax
		1298	add edx, WIO_RDP - WIO_RAP
		1299	in ax, dx
		1300	and eax, 0xffff
		1301	sub edx, WIO_RDP
		1302
		1303	ret
		1304
		1305
		1306	; eax - data
		1307	; ecx - index
		1308	align 4
		1309	wio_write_csr:
		1310
		1311	add edx, WIO_RAP
		1312	xchg eax, ecx
		1313	out dx, ax
		1314	xchg eax, ecx
		1315	add edx, WIO_RDP - WIO_RAP
		1316	out dx, ax
		1317	sub edx, WIO_RDP
		1318
		1319	ret
		1320
		1321
		1322	; ecx - index
		1323	; return:
		1324	; eax - data
		1325	align 4
		1326	wio_read_bcr:
		1327
		1328	add edx, WIO_RAP
		1329	mov ax, cx
		1330	out dx, ax
		1331	add edx, WIO_BDP - WIO_RAP
		1332	in ax, dx
		1333	and eax, 0xffff
		1334	sub edx, WIO_BDP
		1335
		1336	ret
		1337
		1338
		1339	; eax - data
		1340	; ecx - index
		1341	align 4
		1342	wio_write_bcr:
		1343
		1344	add edx, WIO_RAP
		1345	xchg eax, ecx
		1346	out dx, ax
		1347	xchg eax, ecx
		1348	add edx, WIO_BDP - WIO_RAP
		1349	out dx, ax
		1350	sub edx, WIO_BDP
		1351
		1352	ret
		1353
		1354	align 4
		1355	wio_read_rap:
		1356
		1357	add edx, WIO_RAP
		1358	in ax, dx
		1359	and eax, 0xffff
		1360	sub edx, WIO_RAP
		1361
		1362	ret
		1363
		1364	; eax - val
		1365	align 4
		1366	wio_write_rap:
		1367
		1368	add edx, WIO_RAP
		1369	out dx, ax
		1370	sub edx, WIO_RAP
		1371
		1372	ret
		1373
		1374	align 4
		1375	wio_reset:
		1376
		1377	push eax
		1378	add edx, WIO_RESET
		1379	in ax, dx
		1380	pop eax
		1381	sub edx, WIO_RESET
		1382
		1383	ret
		1384
		1385
		1386
		1387	; ecx - index
		1388	; return:
		1389	; eax - data
		1390	align 4
		1391	dwio_read_csr:
		1392
		1393	add edx, DWIO_RAP
		1394	mov eax, ecx
		1395	out dx, eax
		1396	add edx, DWIO_RDP - DWIO_RAP
		1397	in eax, dx
		1398	and eax, 0xffff
		1399	sub edx, DWIO_RDP
		1400
		1401	ret
		1402
		1403
		1404	; ecx - index
		1405	; eax - data
		1406	align 4
		1407	dwio_write_csr:
		1408
		1409	add edx, DWIO_RAP
		1410	xchg eax, ecx
		1411	out dx, eax
		1412	add edx, DWIO_RDP - DWIO_RAP
		1413	xchg eax, ecx
		1414	out dx, eax
		1415	sub edx, DWIO_RDP
		1416
		1417	ret
		1418
		1419	; ecx - index
		1420	; return:
		1421	; eax - data
		1422	align 4
		1423	dwio_read_bcr:
		1424
		1425	add edx, DWIO_RAP
		1426	mov eax, ecx
		1427	out dx, eax
		1428	add edx, DWIO_BDP - DWIO_RAP
		1429	in eax, dx
		1430	and eax, 0xffff
		1431	sub edx, DWIO_BDP
		1432
		1433	ret
		1434
		1435
		1436	; ecx - index
		1437	; eax - data
		1438	align 4
		1439	dwio_write_bcr:
		1440
		1441	add edx, DWIO_RAP
		1442	xchg eax, ecx
		1443	out dx, eax
		1444	add edx, DWIO_BDP - DWIO_RAP
		1445	xchg eax, ecx
		1446	out dx, eax
		1447	sub edx, DWIO_BDP
		1448
		1449	ret
		1450
		1451	align 4
		1452	dwio_read_rap:
		1453
		1454	add edx, DWIO_RAP
		1455	in eax, dx
		1456	and eax, 0xffff
		1457	sub edx, DWIO_RAP
		1458
		1459	ret
		1460
		1461
		1462	; eax - val
		1463	align 4
		1464	dwio_write_rap:
		1465
		1466	add edx, DWIO_RAP
		1467	out dx, eax
		1468	sub edx, DWIO_RAP
		1469
		1470	ret
		1471
		1472	align 4
		1473	dwio_reset:
		1474
		1475	push eax
		1476	add edx, DWIO_RESET
		1477	in eax, dx
		1478	pop eax
		1479	sub edx, DWIO_RESET
		1480
		1481	ret
		1482
		1483
		1484	align 4
		1485	mdio_read:
		1486
		1487	and ecx, 0x1f
		1488	mov ax, [device.phy]
		1489	and ax, 0x1f
		1490	shl ax, 5
		1491	or ax, cx
		1492
		1493	mov ecx, BCR_MIIADDR
		1494	call [device.write_bcr]
		1495
		1496	mov ecx, BCR_MIIDATA
		1497	call [device.read_bcr]
		1498
		1499	ret
		1500
		1501
		1502	align 4
		1503	mdio_write:
		1504
		1505	push eax
		1506	and ecx, 0x1f
		1507	mov ax, [device.phy]
		1508	and ax, 0x1f
		1509	shl ax, 5
		1510	or ax, cx
		1511
		1512	mov ecx, BCR_MIIADDR
		1513	call [device.write_bcr]
		1514
		1515	pop eax
		1516	mov ecx, BCR_MIIDATA
		1517	call [device.write_bcr]
		1518
		1519	ret
		1520
		1521
		1522	align 4
		1523	check_media:
		1524
		1525	DEBUGF 1, "check_media\n"
		1526
		1527	test [device.mii], 1
		1528	jnz mii_link_ok
		1529
		1530	mov ecx, BCR_LED0
		1531	call [device.read_bcr]
		1532	cmp eax, 0xc0
		1533
		1534	DEBUGF 1, "link status=0x%x\n", ax
		1535
		1536	ret
		1537
		1538
		1539
		1540	; End of code
		1541
		1542	align 4 ; Place all initialised data here
		1543
		1544	devices dd 0
		1545	version dd (5 shl 16) or (API_VERSION and 0xFFFF)
		1546	my_service db 'PCnet',0 ; max 16 chars include zero
		1547
		1548	device_l2 db "PCnet/PCI 79C970",0
		1549	device_l4 db "PCnet/PCI II 79C970A",0
		1550	device_l5 db "PCnet/FAST 79C971",0
		1551	device_l6 db "PCnet/FAST+ 79C972",0
		1552	device_l7 db "PCnet/FAST III 79C973",0
		1553	device_l8 db "PCnet/Home 79C978",0
		1554	device_l9 db "PCnet/FAST III 79C975",0
		1555
		1556	options_mapping:
		1557	dd PORT_ASEL ; 0 Auto-select
		1558	dd PORT_AUI ; 1 BNC/AUI
		1559	dd PORT_AUI ; 2 AUI/BNC
		1560	dd PORT_ASEL ; 3 not supported
		1561	dd PORT_10BT or PORT_FD ; 4 10baseT-FD
		1562	dd PORT_ASEL ; 5 not supported
		1563	dd PORT_ASEL ; 6 not supported
		1564	dd PORT_ASEL ; 7 not supported
		1565	dd PORT_ASEL ; 8 not supported
		1566	dd PORT_MII ; 9 MII 10baseT
		1567	dd PORT_MII or PORT_FD ; 10 MII 10baseT-FD
		1568	dd PORT_MII ; 11 MII (autosel)
		1569	dd PORT_10BT ; 12 10BaseT
		1570	dd PORT_MII or PORT_100 ; 13 MII 100BaseTx
		1571	dd PORT_MII or PORT_100 or PORT_FD ; 14 MII 100BaseTx-FD
		1572	dd PORT_ASEL ; 15 not supported
		1573
		1574	include_debug_strings ; All data wich FDO uses will be included here
		1575
		1576	section '.data' data readable writable align 16 ; place all uninitialized data place here
		1577
		1578	device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling

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(root)/drivers/ethernet/pcnet32.asm @ 5522 – Rev 3545