WebSVN – Kolibri OS – Blame – /kernel/trunk/network/eth_drv/drivers/rtl8029.inc

Rev	Author	Line No.	Line
425	victor	1	$Revision: 431 $
261	hidnplayr	2	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		3	;; ;;
431	serge	4	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
		5	;; Distributed under terms of the GNU General Public License ;;
		6	;; ;;
261	hidnplayr	7	;; RTL8029.INC ;;
		8	;; ;;
		9	;; Ethernet driver for Menuet OS ;;
		10	;; ;;
		11	;; Version 0.2 31 July 2002 ;;
		12	;; ;;
		13	;; This driver is based on the ns8390 driver from ;;
		14	;; the etherboot 5.0.6 project. The copyright statement is ;;
		15	;; ;;
		16	;; GNU GENERAL PUBLIC LICENSE ;;
		17	;; Version 2, June 1991 ;;
		18	;; ;;
		19	;; remaining parts Copyright 2002 Mike Hibbett, ;;
		20	;; mikeh@oceanfree.net ;;
		21	;; ;;
		22	;; See file COPYING for details ;;
		23	;; ;;
		24	;; While this implementation handles only PCI bus RTL8029 ;;
		25	;; hardware, it can be easily adapted to other NE2000 clone ;;
		26	;; products. I just dont have any to try! ;;
		27	;; ;;
		28	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
		29
		30
		31
		32	;********************************************************************
		33	; Interface
		34	; rtl8029_reset
		35	; rtl8029_probe
		36	; rtl8029_poll
		37	; rtl8029_transmit
		38	;
		39	;********************************************************************
		40
		41
		42
		43
		44	;**************************************************************************
		45	; 8390 Register Definitions
		46	;**************************************************************************
		47	D8390_P0_COMMAND equ 0x00
		48	D8390_P0_PSTART equ 0x01
		49	D8390_P0_PSTOP equ 0x02
		50	D8390_P0_BOUND equ 0x03
		51	D8390_P0_TSR equ 0x04
		52	D8390_P0_TPSR equ 0x04
		53	D8390_P0_TBCR0 equ 0x05
		54	D8390_P0_TBCR1 equ 0x06
		55	D8390_P0_ISR equ 0x07
		56	D8390_P0_RSAR0 equ 0x08
		57	D8390_P0_RSAR1 equ 0x09
		58	D8390_P0_RBCR0 equ 0x0A
		59	D8390_P0_RBCR1 equ 0x0B
		60	D8390_P0_RSR equ 0x0C
		61	D8390_P0_RCR equ 0x0C
		62	D8390_P0_TCR equ 0x0D
		63	D8390_P0_DCR equ 0x0E
		64	D8390_P0_IMR equ 0x0F
		65	D8390_P1_COMMAND equ 0x00
		66	D8390_P1_PAR0 equ 0x01
		67	D8390_P1_PAR1 equ 0x02
		68	D8390_P1_PAR2 equ 0x03
		69	D8390_P1_PAR3 equ 0x04
		70	D8390_P1_PAR4 equ 0x05
		71	D8390_P1_PAR5 equ 0x06
		72	D8390_P1_CURR equ 0x07
		73	D8390_P1_MAR0 equ 0x08
		74
		75	D8390_COMMAND_PS0 equ 0x0 ; Page 0 select
		76	D8390_COMMAND_PS1 equ 0x40 ; Page 1 select
		77	D8390_COMMAND_PS2 equ 0x80 ; Page 2 select
		78	D8390_COMMAND_RD2 equ 0x20 ; Remote DMA control
		79	D8390_COMMAND_RD1 equ 0x10
		80	D8390_COMMAND_RD0 equ 0x08
		81	D8390_COMMAND_TXP equ 0x04 ; transmit packet
		82	D8390_COMMAND_STA equ 0x02 ; start
		83	D8390_COMMAND_STP equ 0x01 ; stop
		84
		85	D8390_COMMAND_RD2_STA equ 0x22
		86	D8390_COMMAND_RD2_STP equ 0x21
		87	D8390_COMMAND_RD1_STA equ 0x12
		88	D8390_COMMAND_RD0_STA equ 0x0A
		89	D8390_COMMAND_PS0_RD2_STP equ 0x21
		90	D8390_COMMAND_PS1_RD2_STP equ 0x61
		91	D8390_COMMAND_PS0_RD2_STA equ 0x22
		92	D8390_COMMAND_PS0_TXP_RD2_STA equ 0x26
		93
		94	D8390_RCR_MON equ 0x20 ; monitor mode
		95
		96	D8390_DCR_FT1 equ 0x40
		97	D8390_DCR_LS equ 0x08 ; Loopback select
		98	D8390_DCR_WTS equ 0x01 ; Word transfer select
		99
		100	D8390_DCR_FT1_LS equ 0x48
		101	D8390_DCR_WTS_FT1_LS equ 0x49
		102
		103	D8390_ISR_PRX equ 0x01 ; successful recv
		104	D8390_ISR_PTX equ 0x02 ; successful xmit
		105	D8390_ISR_RXE equ 0x04 ; receive error
		106	D8390_ISR_TXE equ 0x08 ; transmit error
		107	D8390_ISR_OVW equ 0x10 ; Overflow
		108	D8390_ISR_CNT equ 0x20 ; Counter overflow
		109	D8390_ISR_RDC equ 0x40 ; Remote DMA complete
		110	D8390_ISR_RST equ 0x80 ; reset
		111
		112	D8390_RSTAT_PRX equ 0x01 ; successful recv
		113	D8390_RSTAT_CRC equ 0x02 ; CRC error
		114	D8390_RSTAT_FAE equ 0x04 ; Frame alignment error
		115	D8390_RSTAT_OVER equ 0x08 ; FIFO overrun
		116
		117	D8390_TXBUF_SIZE equ 6
		118	D8390_RXBUF_END equ 32
		119	D8390_PAGE_SIZE equ 256
		120
		121	ETH_ALEN equ 6
		122	ETH_HLEN equ 14
		123	ETH_ZLEN equ 60
		124	ETH_FRAME_LEN equ 1514
		125
		126	FLAG_PIO equ 0x01
		127	FLAG_16BIT equ 0x02
		128	ASIC_PIO equ 0
		129
		130	VENDOR_NONE equ 0
		131	VENDOR_WD equ 1
		132	VENDOR_NOVELL equ 2
		133	VENDOR_3COM equ 3
		134
		135	NE_ASIC_OFFSET equ 0x10
		136	NE_RESET equ 0x0F ; Used to reset card
		137	NE_DATA equ 0x00 ; Used to read/write NIC mem
		138
		139	MEM_8192 equ 32
		140	MEM_16384 equ 64
		141	MEM_32768 equ 128
		142
		143	ISA_MAX_ADDR equ 0x400
		144
		145	uglobal
		146	eth_flags: db 0
		147	eth_vendor: db 0
		148	eth_nic_base: dw 0
		149	eth_asic_base: dw 0
		150	eth_memsize: db 0
		151	eth_rx_start: db 0
		152	eth_tx_start: db 0
		153	eth_bmem: dd 0
		154	eth_rmem: dd 0
		155	romdata: db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0
		156	endg
		157
		158	iglobal
		159	test_data: db 'NE*000 memory',0
		160	test_buffer: db ' ',0
		161	endg
		162
		163	uglobal
		164	eth_type: dw 0
		165	pkthdr: db 0,0,0,0 ; status, next, (short) len
		166	pktoff: dw 0
		167	eth_rx_data_ptr: dd 0
		168	eth_tmp_len: dw 0
		169	endg
		170
		171
		172
		173	;***************************************************************************
		174	; Function
		175	; eth_pio_read
		176	;
		177	; Description
		178	; Read a frame from the ethernet card via Programmed I/O
		179	; src in ebx
		180	; cnt in ecx
		181	; dst in edi
		182	;***************************************************************************
		183	eth_pio_read:
		184	mov al, [eth_flags]
		185	and al, FLAG_16BIT
		186	cmp al, 0
		187	je epr_001
		188
		189	inc ecx
		190	and ecx, 0xFFFFFFFE
		191
		192	epr_001:
		193	mov al, D8390_COMMAND_RD2_STA
		194	mov dx, [eth_nic_base]
		195	add dx, D8390_P0_COMMAND
		196	out dx, al
		197
		198	mov al, cl
		199	mov dx, [eth_nic_base]
		200	add dx, D8390_P0_RBCR0
		201	out dx, al
		202
		203	mov al, ch
		204	mov dx, [eth_nic_base]
		205	add dx, D8390_P0_RBCR1
		206	out dx, al
		207
		208	mov al, bl
		209	mov dx, [eth_nic_base]
		210	add dx, D8390_P0_RSAR0
		211	out dx, al
		212
		213	mov al, bh
		214	mov dx, [eth_nic_base]
		215	add dx, D8390_P0_RSAR1
		216	out dx, al
		217
		218	mov al, D8390_COMMAND_RD0_STA
		219	mov dx, [eth_nic_base]
		220	add dx, D8390_P0_COMMAND
		221	out dx, al
		222
		223	mov dx, [eth_asic_base]
		224	add dx, ASIC_PIO
		225
		226	mov al, [eth_flags]
		227	and al, FLAG_16BIT
		228	cmp al, 0
		229	je epr_003
		230
		231	shr ecx, 1
		232
		233	epr_002:
		234	; 2 bytes at a time
		235	in ax, dx
		236	mov [edi], ax
		237	add edi, 2
		238	loop epr_002
		239	ret
		240
		241	epr_003:
		242	; 1 byte at a time
		243	in al, dx
		244	mov [edi], al
		245	inc edi
		246	loop epr_003
		247	ret
		248
		249
		250
		251
		252	;***************************************************************************
		253	; Function
		254	; eth_pio_write
		255	;
		256	; Description
		257	; writes a frame to the ethernet card via Programmed I/O
		258	; dst in ebx
		259	; cnt in ecx
		260	; src in esi
		261	;***************************************************************************
		262	eth_pio_write:
		263	mov al, [eth_flags]
		264	and al, FLAG_16BIT
		265	cmp al, 0
		266	je epw_001
		267
		268	inc ecx
		269	and ecx, 0xFFFFFFFE
		270
		271	epw_001:
		272	mov al, D8390_COMMAND_RD2_STA
		273	mov dx, [eth_nic_base]
		274	add dx, D8390_P0_COMMAND
		275	out dx, al
		276
		277	mov al, D8390_ISR_RDC
		278	mov dx, [eth_nic_base]
		279	add dx, D8390_P0_ISR
		280	out dx, al
		281
		282
		283	mov al, cl
		284	mov dx, [eth_nic_base]
		285	add dx, D8390_P0_RBCR0
		286	out dx, al
		287
		288	mov al, ch
		289	mov dx, [eth_nic_base]
		290	add dx, D8390_P0_RBCR1
		291	out dx, al
		292
		293	mov al, bl
		294	mov dx, [eth_nic_base]
		295	add dx, D8390_P0_RSAR0
		296	out dx, al
		297
		298	mov al, bh
		299	mov dx, [eth_nic_base]
		300	add dx, D8390_P0_RSAR1
		301	out dx, al
		302
		303	mov al, D8390_COMMAND_RD1_STA
		304	mov dx, [eth_nic_base]
		305	add dx, D8390_P0_COMMAND
		306	out dx, al
		307
		308	mov dx, [eth_asic_base]
		309	add dx, ASIC_PIO
		310
		311	mov al, [eth_flags]
		312	and al, FLAG_16BIT
		313	cmp al, 0
		314	je epw_003
		315
		316	shr ecx, 1
		317
		318	epw_002:
		319	; 2 bytes at a time
		320	mov ax, [esi]
		321	add esi, 2
		322	out dx, ax
		323
		324	loop epw_002
		325	jmp epw_004
		326
		327	epw_003:
		328	; 1 byte at a time
		329	mov al, [esi]
		330	inc esi
		331	out dx, al
		332	loop epw_003
		333
		334	epw_004:
		335	mov dx, [eth_nic_base]
		336	add dx, D8390_P0_ISR
		337
		338	epw_005:
		339	in al, dx
		340	and al, D8390_ISR_RDC
		341	cmp al, D8390_ISR_RDC
		342	jne epw_005
		343
		344	ret
		345
		346
		347
		348	;***************************************************************************
		349	; Function
		350	; rtl8029_reset
		351	; Description
		352	; Place the chip (ie, the ethernet card) into a virgin state
		353	; No inputs
		354	; All registers destroyed
		355	;
		356	;***************************************************************************
		357	rtl8029_reset:
		358	mov bx, [eth_nic_base]
		359
		360	mov dx, bx
		361	add dx, D8390_P0_COMMAND
		362	mov al, D8390_COMMAND_PS0_RD2_STP
		363	out dx, al
		364
		365	mov dx, bx
		366	add dx, D8390_P0_DCR
		367	mov al, [eth_flags]
		368	and al, FLAG_16BIT
		369	cmp al, FLAG_16BIT
		370	jne nsr_001
		371
		372	mov al, 0x49
		373	jmp nsr_002
		374
		375	nsr_001:
		376	mov al, 0x48
		377
		378	nsr_002:
		379	out dx, al
		380
		381	xor al, al
		382
		383	mov dx, bx
		384	add dx, D8390_P0_RBCR0
		385	out dx, al
		386
		387	mov dx, bx
		388	add dx, D8390_P0_RBCR1
		389	out dx, al
		390
		391	mov dx, bx
		392	add dx, D8390_P0_RCR
		393	mov al, 0x20
		394	out dx, al
		395
		396	mov dx, bx
		397	add dx, D8390_P0_TCR
		398	mov al, 2
		399	out dx, al
		400
		401	mov dx, bx
		402	add dx, D8390_P0_TPSR
		403	mov al, [eth_tx_start]
		404	out dx, al
		405
		406	mov dx, bx
		407	add dx, D8390_P0_PSTART
		408	mov al, [eth_rx_start]
		409	out dx, al
		410
		411	mov dx, bx
		412	add dx, D8390_P0_PSTOP
		413	mov al, [eth_memsize]
		414	out dx, al
		415
		416	mov dx, bx
		417	add dx, D8390_P0_BOUND
		418	mov al, [eth_memsize]
		419	dec al
		420	out dx, al
		421
		422	mov dx, bx
		423	add dx, D8390_P0_ISR
		424	mov al, 0xff
		425	out dx, al
		426
		427	mov dx, bx
		428	add dx, D8390_P0_IMR
		429	xor al, al
		430	out dx, al
		431
		432	mov dx, bx
		433	add dx, D8390_P0_COMMAND
		434	mov al, D8390_COMMAND_PS1_RD2_STP
		435	out dx, al
		436
		437	mov dx, bx
		438	add dx, D8390_P1_PAR0
		439	mov esi, node_addr
		440	mov ecx, ETH_ALEN
		441
		442	nsr_003:
		443	mov al, [esi]
		444	out dx, al
		445
		446	inc esi
		447	inc dx
		448	loop nsr_003
		449
		450	mov dx, bx
		451	add dx, D8390_P1_MAR0
		452	mov ecx, ETH_ALEN
		453
		454	mov al, 0xff
		455
		456	nsr_004:
		457	out dx, al
		458	inc dx
		459	loop nsr_004
		460
		461	mov dx, bx
		462	add dx, D8390_P1_CURR
		463	mov al, [eth_rx_start]
		464	out dx, al
		465
		466	mov dx, bx
		467	add dx, D8390_P0_COMMAND
		468	mov al, D8390_COMMAND_PS0_RD2_STA
		469	out dx, al
		470
		471	mov dx, bx
		472	add dx, D8390_P0_ISR
		473	mov al, 0xff
		474	out dx, al
		475
		476	mov dx, bx
		477	add dx, D8390_P0_TCR
		478	mov al, 0
		479	out dx, al
		480
		481	mov dx, bx
		482	add dx, D8390_P0_RCR
		483	mov al, 4
		484	out dx, al
		485
		486	ret
		487
		488
		489
		490	;***************************************************************************
		491	; Function
		492	; rtl8029_probe
		493	; Description
		494	; Searches for an ethernet card, enables it and clears the rx buffer
		495	; If a card was found, it enables the ethernet -> TCPIP link
		496	;
		497	;***************************************************************************
		498	rtl8029_probe:
		499	mov eax, [io_addr]
		500	mov [eth_nic_base], ax ; The IO address space is 16 bit only
		501
		502	mov al, VENDOR_NONE
		503	mov [eth_vendor], al
		504
		505	mov al, [eth_vendor]
		506	cmp al, VENDOR_NONE
		507
		508	jne ep_check_have_vendor
		509	xor eax, eax
		510	mov [eth_bmem], eax
		511
		512	mov al, FLAG_PIO
		513	mov [eth_flags], al
		514
		515	mov ax, [eth_nic_base]
		516	add ax, NE_ASIC_OFFSET
		517	mov [eth_asic_base], ax
		518
		519	mov al, MEM_16384
		520	mov [eth_memsize], al
		521
		522	mov al, 32
		523	mov [eth_tx_start], al
		524
		525	add al, D8390_TXBUF_SIZE
		526	mov [eth_rx_start], al
		527
		528	mov dx, [eth_asic_base]
		529	add dx, NE_RESET
		530
		531	in al, dx
		532	out dx, al
		533
		534	in al, 0x84
		535
		536	mov bx, [eth_nic_base]
		537
		538	mov dx, bx
		539	add dx, D8390_P0_COMMAND
		540	mov al, D8390_COMMAND_RD2_STP
		541	out dx, al
		542
		543	mov dx, bx
		544	add dx, D8390_P0_RCR
		545	mov al, D8390_RCR_MON
		546	out dx, al
		547
		548	mov dx, bx
		549	add dx, D8390_P0_DCR
		550	mov al, D8390_DCR_FT1_LS
		551	out dx, al
		552
		553	mov dx, bx
		554	add dx, D8390_P0_PSTART
		555	mov al, MEM_8192
		556	out dx, al
		557
		558	mov dx, bx
		559	add dx, D8390_P0_PSTOP
		560	mov al, MEM_16384
		561	out dx, al
		562
		563	mov esi, test_data
		564	mov ebx, 8192
		565	mov ecx, 14
		566	call eth_pio_write
		567
		568	mov ebx, 8192
		569	mov ecx, 14
		570	mov edi, test_buffer
		571	call eth_pio_read
		572
		573	mov esi, test_buffer
		574	mov edi, test_data
		575	mov ecx, 13
		576	cld
		577	rep cmpsb
		578
		579	je ep_set_vendor
		580
		581	mov al, [eth_flags]
		582	or al, FLAG_16BIT
		583	mov [eth_flags], al
		584
		585	mov al, MEM_32768
		586	mov [eth_memsize], al
		587
		588	mov al, 64
		589	mov [eth_tx_start], al
		590
		591	add al, D8390_TXBUF_SIZE
		592	mov [eth_rx_start], al
		593
		594	mov bx, [eth_nic_base]
		595
		596	mov dx, bx
		597	add dx, D8390_P0_DCR
		598	mov al, D8390_DCR_WTS_FT1_LS
		599	out dx, al
		600
		601	mov dx, bx
		602	add dx, D8390_P0_PSTART
		603	mov al, MEM_16384
		604	out dx, al
		605
		606	mov dx, bx
		607	add dx, D8390_P0_PSTOP
		608	mov al, MEM_32768
		609	out dx, al
		610
		611	mov esi, test_data
		612	mov ebx, 16384
		613	mov ecx, 14
		614	call eth_pio_write
		615
		616	mov ebx, 16384
		617	mov ecx, 14
		618	mov edi, test_buffer
		619	call eth_pio_read
		620
		621	mov esi, test_buffer
		622	mov edi, test_data
		623	mov ecx, 13
		624	cld
		625	rep cmpsb
		626
		627	ep_set_vendor:
		628	; this bit is odd - probably left over from my hacking
		629	mov ax, [eth_nic_base]
		630	cmp ax, 0
		631	je rtl8029_exit
		632	cmp ax, ISA_MAX_ADDR
		633	jbe ep_001
		634	mov al, [eth_flags]
		635	or al, FLAG_16BIT
		636	mov [eth_flags], al
		637
		638	ep_001:
		639	mov al, VENDOR_NOVELL
		640	mov [eth_vendor], al
		641
		642	mov ebx, 0
		643	mov ecx, 16
		644	mov edi, romdata
		645	call eth_pio_read
		646
		647
		648	mov ecx, ETH_ALEN
		649	mov esi, romdata
		650	mov edi, node_addr
		651
		652	mov bl, [eth_flags]
		653	and bl, FLAG_16BIT
		654
		655	ep_002:
		656	mov al, [esi]
		657	mov [edi], al
		658
		659	inc edi
		660	inc esi
		661	cmp bl, FLAG_16BIT
		662	jne ep_003
		663
		664	inc esi
		665
		666	ep_003:
		667	loop ep_002
		668
		669	ep_check_have_vendor:
		670	mov al, [eth_vendor]
		671	cmp al, VENDOR_NONE
		672	je rtl8029_exit
		673
		674	cmp al, VENDOR_3COM
		675	je ep_reset_card
		676
		677	mov eax, [eth_bmem]
		678	mov [eth_rmem], eax
		679
		680	ep_reset_card:
		681	; Reset the card
		682	call rtl8029_reset
		683
		684	; Indicate that we have successfully reset the card
		685	mov eax, [pci_data]
		686	mov [eth_status], eax
		687
		688	rtl8029_exit:
		689	ret
		690
		691
		692
		693	;***************************************************************************
		694	; Function
		695	; rtl8029_poll
		696	;
		697	; Description
		698	; Polls the ethernet card for a received packet
		699	; Received data, if any, ends up in Ether_buffer
		700	;
		701	;***************************************************************************
		702	rtl8029_poll:
		703	mov eax, Ether_buffer
		704	mov [eth_rx_data_ptr], eax
		705
		706	mov bx, [eth_nic_base]
		707
		708	mov dx, bx
		709	add dx, D8390_P0_RSR
		710	in al, dx
		711
		712	and al, D8390_RSTAT_PRX
		713	cmp al, D8390_RSTAT_PRX
		714	jne nsp_exit
		715
		716	mov dx, bx
		717	add dx, D8390_P0_BOUND
		718	in al, dx
		719	inc al
		720
		721	cmp al, [eth_memsize]
		722	jb nsp_001
		723
		724	mov al, [eth_rx_start]
		725
		726	nsp_001:
		727	mov ch, al
		728
		729	mov dx, bx
		730	add dx, D8390_P0_COMMAND
		731	mov al, D8390_COMMAND_PS1
		732	out dx, al
		733
		734	mov dx, bx
		735	add dx, D8390_P1_CURR
		736	in al, dx ; get current page
		737	mov cl, al
		738
		739	mov dx, bx
		740	add dx, D8390_P0_COMMAND
		741	mov al, D8390_COMMAND_PS0
		742	out dx, al
		743
		744	cmp cl, [eth_memsize]
		745	jb nsp_002
		746
		747	mov cl, [eth_rx_start]
		748
		749	nsp_002:
		750	cmp cl, ch
		751	je nsp_exit
		752
		753	xor ax, ax
		754	mov ah, ch
		755
		756	mov [pktoff], ax
		757
		758	mov al, [eth_flags]
		759	and al, FLAG_PIO
		760	cmp al, FLAG_PIO
		761	jne nsp_003
		762
		763	movzx ebx, word [pktoff]
		764	mov edi, pkthdr
		765	mov ecx, 4
		766	call eth_pio_read
		767	jmp nsp_004
		768
		769	nsp_003:
		770	mov edi, [eth_rmem]
		771	movzx eax, word [pktoff]
		772	add edi, eax
		773	mov eax, [edi]
		774	mov [pkthdr], eax
		775
		776	nsp_004:
		777	mov ax, [pktoff]
		778	add ax, 4
		779	mov [pktoff], ax
		780
		781	mov ax, [pkthdr + 2]
		782	sub ax, 4
		783
		784	mov [eth_tmp_len], ax
		785
		786	cmp ax, ETH_ZLEN
		787	jb nsp_exit
		788
		789	cmp ax, ETH_FRAME_LEN
		790	ja nsp_exit
		791
		792	mov al, [pkthdr]
		793	and al, D8390_RSTAT_PRX
		794	cmp al, D8390_RSTAT_PRX
		795	jne nsp_exit
		796
		797	; Right, we can now get the data
		798
		799	mov ax, [eth_tmp_len]
		800	mov [eth_rx_data_len], ax
		801
		802	xor ebx, ebx
		803	mov bh, [eth_memsize]
		804	sub bx, [pktoff]
		805
		806	cmp [eth_tmp_len], bx
		807	jbe nsp_005
		808
		809	mov al, [eth_flags]
		810	and al, FLAG_PIO
		811	cmp al, FLAG_PIO
		812	jne nsp_006
		813
		814	push ebx
		815	mov ecx, ebx
		816	xor ebx, ebx
		817	mov bx, [pktoff]
		818	mov edi, [eth_rx_data_ptr]
		819	call eth_pio_read
		820	pop ebx
		821	jmp nsp_007
		822
		823	nsp_006:
		824	; Not implemented, as we are using PIO mode on this card
		825
		826	nsp_007:
		827	xor ax, ax
		828	mov ah, [eth_rx_start]
		829	mov [pktoff], ax
		830
		831	mov eax, [eth_rx_data_ptr]
		832	add eax, ebx
		833	mov [eth_rx_data_ptr], eax
		834
		835	mov ax, [eth_tmp_len]
		836	sub ax, bx
		837	mov [eth_tmp_len], ax
		838
		839	nsp_005:
		840	mov al, [eth_flags]
		841	and al, FLAG_PIO
		842	cmp al, FLAG_PIO
		843	jne nsp_008
		844
		845	xor ebx, ebx
		846	mov bx, [pktoff]
		847	xor ecx, ecx
		848	mov cx, [eth_tmp_len]
		849	mov edi, [eth_rx_data_ptr]
		850	call eth_pio_read
		851	jmp nsp_009
		852
		853	nsp_008:
		854	; Not implemented, as we are using PIO mode on this card
		855
		856	nsp_009:
		857	mov al, [pkthdr+1]
		858	cmp al, [eth_rx_start]
		859	jne nsp_010
		860
		861	mov al, [eth_memsize]
		862
		863	nsp_010:
		864	mov dx, [eth_nic_base]
		865	add dx, D8390_P0_BOUND
		866	dec al
		867	out dx, al
		868
		869	nsp_exit:
		870	ret
		871
		872
		873
		874	;***************************************************************************
		875	; Function
		876	; rtl8029_transmit
		877	;
		878	; Description
		879	; Transmits a packet of data via the ethernet card
		880	; Pointer to 48 bit destination address in edi
		881	; Type of packet in bx
		882	; size of packet in ecx
		883	; pointer to packet data in esi
		884	;
		885	;***************************************************************************
		886	rtl8029_transmit:
		887	mov [eth_type], bx
		888
		889	pusha
		890
		891	mov esi, edi
		892	xor bx, bx
		893	mov bh, [eth_tx_start]
		894	mov ecx, ETH_ALEN
		895	call eth_pio_write
		896
		897	mov esi, node_addr
		898	xor bx, bx
		899	mov bh, [eth_tx_start]
		900	add bx, ETH_ALEN
		901	mov ecx, ETH_ALEN
		902	call eth_pio_write
		903
		904	mov esi, eth_type
		905	xor bx, bx
		906	mov bh, [eth_tx_start]
		907	add bx, ETH_ALEN
		908	add bx, ETH_ALEN
		909	mov ecx, 2
		910	call eth_pio_write
		911
		912	popa
		913
		914	xor bx, bx
		915	mov bh, [eth_tx_start]
		916	add bx, ETH_HLEN
		917	push ecx
		918	call eth_pio_write
		919	pop ecx
		920
		921	add ecx, ETH_HLEN
		922	cmp ecx, ETH_ZLEN
		923	jae nst_001
		924
		925	mov ecx, ETH_ZLEN
		926
		927	nst_001:
		928	push ecx
		929
		930	mov bx, [eth_nic_base]
		931
		932	mov dx, bx
		933	add dx, D8390_P0_COMMAND
		934	mov al, D8390_COMMAND_PS0_RD2_STA
		935	out dx, al
		936
		937	mov dx, bx
		938	add dx, D8390_P0_TPSR
		939	mov al, [eth_tx_start]
		940	out dx, al
		941
		942	pop ecx
		943
		944	mov dx, bx
		945	add dx, D8390_P0_TBCR0
		946	mov al, cl
		947	out dx, al
		948
		949	mov dx, bx
		950	add dx, D8390_P0_TBCR1
		951	mov al, ch
		952	out dx, al
		953
		954	mov dx, bx
		955	add dx, D8390_P0_COMMAND
		956	mov al, D8390_COMMAND_PS0_TXP_RD2_STA
		957	out dx, al
		958
		959	ret

Subversion Repositories Kolibri OS

(root)/kernel/trunk/network/eth_drv/drivers/rtl8029.inc – Rev 431