Subversion Repositories Kolibri OS

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;                                                                 ;;

;; Copyright (C) KolibriOS team 2004-2010. All rights reserved.    ;;

;; Distributed under terms of the GNU General Public License       ;;

;;                                                                 ;;

;;  RTL8169 driver for KolibriOS                                   ;;

;;                                                                 ;;

;;  Copyright 2007 mike.dld,                                       ;;

;;   mike.dld@gmail.com                                            ;;

;;                                                                 ;;

;;  Version 0.1  11 February 2007                                  ;;

;;  Version 0.2  3 August 2010 - port to net branch by hidnplayr   ;;

;;                                                                 ;;

;;  References:                                                    ;;

;;    r8169.c - linux driver (etherboot project)                   ;;

;;                                                                 ;;

;;          GNU GENERAL PUBLIC LICENSE                             ;;

;;             Version 2, June 1991                                ;;

;;                                                                 ;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

format MS COFF

	API_VERSION		equ 0x01000100

	DRIVER_VERSION		equ 5

	MAX_DEVICES		equ 16

	DEBUG			equ 1

	__DEBUG__		equ 1

	__DEBUG_LEVEL__ 	equ 1

	NUM_TX_DESC		equ 4

	NUM_RX_DESC		equ 4

include 'proc32.inc'

include 'imports.inc'

include 'fdo.inc'

include 'netdrv.inc'

public START

public service_proc

public version

	REG_MAC0	       equ 0x0 ; Ethernet hardware address

	REG_MAR0	       equ 0x8 ; Multicast filter

	REG_TxDescStartAddr    equ 0x20

	REG_TxHDescStartAddr   equ 0x28

	REG_FLASH	       equ 0x30

	REG_ERSR	       equ 0x36

	REG_ChipCmd	       equ 0x37

	REG_TxPoll	       equ 0x38

	REG_IntrMask	       equ 0x3C

	REG_IntrStatus	       equ 0x3E

	REG_TxConfig	       equ 0x40

	REG_RxConfig	       equ 0x44

	REG_RxMissed	       equ 0x4C

	REG_Cfg9346	       equ 0x50

	REG_Config0	       equ 0x51

	REG_Config1	       equ 0x52

	REG_Config2	       equ 0x53

	REG_Config3	       equ 0x54

	REG_Config4	       equ 0x55

	REG_Config5	       equ 0x56

	REG_MultiIntr	       equ 0x5C

	REG_PHYAR	       equ 0x60

	REG_TBICSR	       equ 0x64

	REG_TBI_ANAR	       equ 0x68

	REG_TBI_LPAR	       equ 0x6A

	REG_PHYstatus	       equ 0x6C

	REG_RxMaxSize	       equ 0xDA

	REG_CPlusCmd	       equ 0xE0

	REG_RxDescStartAddr    equ 0xE4

	REG_ETThReg	       equ 0xEC

	REG_FuncEvent	       equ 0xF0

	REG_FuncEventMask      equ 0xF4

	REG_FuncPresetState    equ 0xF8

	REG_FuncForceEvent     equ 0xFC

	; InterruptStatusBits

	ISB_SYSErr	       equ 0x8000

	ISB_PCSTimeout	       equ 0x4000

	ISB_SWInt	       equ 0x0100

	ISB_TxDescUnavail      equ 0x80

	ISB_RxFIFOOver	       equ 0x40

	ISB_LinkChg	       equ 0x20

	ISB_RxOverflow	       equ 0x10

	ISB_TxErr	       equ 0x08

	ISB_TxOK	       equ 0x04

	ISB_RxErr	       equ 0x02

	ISB_RxOK	       equ 0x01

	; RxStatusDesc

	SD_RxRES	       equ 0x00200000

	SD_RxCRC	       equ 0x00080000

	SD_RxRUNT	       equ 0x00100000

	SD_RxRWT	       equ 0x00400000

	; ChipCmdBits

	CMD_Reset	       equ 0x10

	CMD_RxEnb	       equ 0x08

	CMD_TxEnb	       equ 0x04

	CMD_RxBufEmpty	       equ 0x01

	; Cfg9346Bits

	CFG_9346_Lock	       equ 0x00

	CFG_9346_Unlock        equ 0xC0

	; rx_mode_bits

	RXM_AcceptErr	       equ 0x20

	RXM_AcceptRunt	       equ 0x10

	RXM_AcceptBroadcast    equ 0x08

	RXM_AcceptMulticast    equ 0x04

	RXM_AcceptMyPhys       equ 0x02

	RXM_AcceptAllPhys      equ 0x01

	; RxConfigBits

	RXC_FIFOShift	       equ 13

	RXC_DMAShift	       equ 8

	; TxConfigBits

	TXC_InterFrameGapShift equ 24

	TXC_DMAShift	       equ 8	; DMA burst value (0-7) is shift this many bits

	; PHYstatus

	PHYS_TBI_Enable        equ 0x80

	PHYS_TxFlowCtrl        equ 0x40

	PHYS_RxFlowCtrl        equ 0x20

	PHYS_1000bpsF	       equ 0x10

	PHYS_100bps	       equ 0x08

	PHYS_10bps	       equ 0x04

	PHYS_LinkStatus        equ 0x02

	PHYS_FullDup	       equ 0x01

	; GIGABIT_PHY_registers

	PHY_CTRL_REG	       equ 0

	PHY_STAT_REG	       equ 1

	PHY_AUTO_NEGO_REG      equ 4

	PHY_1000_CTRL_REG      equ 9

	; GIGABIT_PHY_REG_BIT

	PHY_Restart_Auto_Nego  equ 0x0200

	PHY_Enable_Auto_Nego   equ 0x1000

	; PHY_STAT_REG = 1;

	PHY_Auto_Neco_Comp     equ 0x0020

	; PHY_AUTO_NEGO_REG = 4;

	PHY_Cap_10_Half        equ 0x0020

	PHY_Cap_10_Full        equ 0x0040

	PHY_Cap_100_Half       equ 0x0080

	PHY_Cap_100_Full       equ 0x0100

	; PHY_1000_CTRL_REG = 9;

	PHY_Cap_1000_Full      equ 0x0200

	PHY_Cap_1000_Half      equ 0x0100

	PHY_Cap_PAUSE	       equ 0x0400

	PHY_Cap_ASYM_PAUSE     equ 0x0800

	PHY_Cap_Null	       equ 0x0

	; _MediaType

	MT_10_Half	       equ 0x01

	MT_10_Full	       equ 0x02

	MT_100_Half	       equ 0x04

	MT_100_Full	       equ 0x08

	MT_1000_Full	       equ 0x10

	; _TBICSRBit

	TBI_LinkOK	       equ 0x02000000

	; _DescStatusBit

	DSB_OWNbit	       equ 0x80000000

	DSB_EORbit	       equ 0x40000000

	DSB_FSbit	       equ 0x20000000

	DSB_LSbit	       equ 0x10000000

	RX_BUF_SIZE		equ 1536    ; Rx Buffer size

ETH_ALEN	       equ 6

ETH_HLEN	       equ (2 * ETH_ALEN + 2)

ETH_ZLEN	       equ 60 ; 60 + 4bytes auto payload for

				      ; mininmum 64bytes frame length

; MAC address length

MAC_ADDR_LEN	    equ 6

; max supported gigabit ethernet frame size -- must be at least (dev->mtu+14+4)

MAX_ETH_FRAME_SIZE  equ 1536

TX_FIFO_THRESH	    equ 256	; In bytes

RX_FIFO_THRESH	    equ 7	; 7 means NO threshold, Rx buffer level before first PCI xfer

RX_DMA_BURST	    equ 7	; Maximum PCI burst, '6' is 1024

TX_DMA_BURST	    equ 7	; Maximum PCI burst, '6' is 1024

ETTh		    equ 0x3F	; 0x3F means NO threshold

EarlyTxThld	    equ 0x3F	; 0x3F means NO early transmit

RxPacketMaxSize     equ 0x0800	; Maximum size supported is 16K-1

InterFrameGap	    equ 0x03	; 3 means InterFrameGap = the shortest one

HZ		    equ 1000

RTL_MIN_IO_SIZE     equ 0x80

TX_TIMEOUT	    equ (6*HZ)

TIMER_EXPIRE_TIME equ 100

ETH_HDR_LEN	    equ 14

DEFAULT_MTU	    equ 1500

DEFAULT_RX_BUF_LEN  equ 1536

;#ifdef JUMBO_FRAME_SUPPORT

;#define MAX_JUMBO_FRAME_MTU    ( 10000 )

;#define MAX_RX_SKBDATA_SIZE    ( MAX_JUMBO_FRAME_MTU + ETH_HDR_LEN )

;#else

MAX_RX_SKBDATA_SIZE equ 1600

;#endif                         //end #ifdef JUMBO_FRAME_SUPPORT

MCFG_METHOD_01	     equ 0x01

MCFG_METHOD_02	     equ 0x02

MCFG_METHOD_03	     equ 0x03

MCFG_METHOD_04	     equ 0x04

MCFG_METHOD_05	     equ 0x05

MCFG_METHOD_11	     equ 0x0b

MCFG_METHOD_12	     equ 0x0c

MCFG_METHOD_13	     equ 0x0d

MCFG_METHOD_14	     equ 0x0e

MCFG_METHOD_15	     equ 0x0f

PCFG_METHOD_1	    equ 0x01	; PHY Reg 0x03 bit0-3 == 0x0000

PCFG_METHOD_2	    equ 0x02	; PHY Reg 0x03 bit0-3 == 0x0001

PCFG_METHOD_3	    equ 0x03	; PHY Reg 0x03 bit0-3 == 0x0002

virtual at 0

  tx_desc:

  .status    dd ?

  .vlan_tag  dd ?

  .buf_addr  dq ?

  .size = $

  rb	(NUM_TX_DESC-1)*tx_desc.size

  .buf_soft_addr	dd ?

end virtual

virtual at 0

  rx_desc:

  .status    dd ?

  .vlan_tag  dd ?

  .buf_addr  dq ?

  .size = $

  rb	(NUM_RX_DESC-1)*rx_desc.size

  .buf_soft_addr	dd ?

end virtual

virtual at ebx

	device:

	ETH_DEVICE

	.io_addr	dd ?

	.pci_bus	db ?

	.pci_dev	db ?

	.irq_line	db ?

	tpc:

	.mmio_addr	dd ? ; memory map physical address

	.chipset	dd ?

	.pcfg		dd ?

	.mcfg		dd ?

	.cur_rx 	dd ? ; Index into the Rx descriptor buffer of next Rx pkt

	.cur_tx 	dd ? ; Index into the Tx descriptor buffer of next Rx pkt

	.TxDescArrays	dd ? ; Index of Tx Descriptor buffer

	.RxDescArrays	dd ? ; Index of Rx Descriptor buffer

	.TxDescArray	dd ? ; Index of 256-alignment Tx Descriptor buffer

	.RxDescArray	dd ? ; Index of 256-alignment Rx Descriptor buffer

	rb 256-(($ - device) and 255)		   ;        align 256

	tx_ring rb NUM_TX_DESC * tx_desc.size * 2

	rb 256-(($ - device) and 255)		   ;        align 256

	rx_ring rb NUM_RX_DESC * rx_desc.size * 2

	device_size = $ - device

end virtual

intr_mask = ISB_LinkChg or ISB_RxOverflow or ISB_RxFIFOOver or ISB_TxErr or ISB_TxOK or ISB_RxErr or ISB_RxOK

rx_config = (RX_FIFO_THRESH shl RXC_FIFOShift) or (RX_DMA_BURST shl RXC_DMAShift) or 0x0000000E

macro	udelay msec {

	push	esi

	mov	esi, msec

	call	Sleep

	pop	esi

}

macro	WRITE_GMII_REG	RegAddr, value {

	set_io	REG_PHYAR

	if	value eq ax

	and	eax, 0x0000ffff

	or	eax, 0x80000000 + (RegAddr shl 16)

	else

	mov	eax, 0x80000000 + (RegAddr shl 16) + value

	end if

	out	dx, eax

	call	PHY_WAIT

}

macro	READ_GMII_REG  RegAddr {

local	.error, .done

	set_io	REG_PHYAR

	mov	eax, RegAddr shl 16

	out	dx, eax

	call	PHY_WAIT

	jz	.error

	in	eax, dx

	and	eax, 0xFFFF

	jmp	.done

  .error:

	or	eax, -1

  .done:

}

align 4

PHY_WAIT:	; io addr must already be set to REG_PHYAR

	udelay	1	 ;;;1000

	push	ecx

	mov	ecx, 2000

	; Check if the RTL8169 has completed writing/reading to the specified MII register

    @@:

	in	eax, dx

	test	eax, 0x80000000

	jz	.exit

	udelay	1	 ;;;100

	loop	@b

  .exit:

	pop	ecx

	ret

section '.flat' code readable align 16

;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;                        ;;

;; proc START             ;;

;;                        ;;

;; (standard driver proc) ;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;

align 4

proc START stdcall, state:dword

	cmp [state], 1

	jne .exit

  .entry:

	DEBUGF	2,"Loading rtl8169 driver\n"

	stdcall RegService, my_service, service_proc

	ret

  .fail:

  .exit:

	xor eax, eax

	ret

endp

;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;                        ;;

;; proc SERVICE_PROC      ;;

;;                        ;;

;; (standard driver proc) ;;

;;;;;;;;;;;;;;;;;;;;;;;;;;;;

align 4

proc service_proc stdcall, ioctl:dword

	mov	edx, [ioctl]

	mov	eax, [IOCTL.io_code]

;------------------------------------------------------

	cmp	eax, 0 ;SRV_GETVERSION

	jne	@F

	cmp	[IOCTL.out_size], 4

	jl	.fail

	mov	eax, [IOCTL.output]

	mov	[eax], dword API_VERSION

	xor	eax, eax

	ret

;------------------------------------------------------

  @@:

	cmp	eax, 1 ;SRV_HOOK

	jne	.fail

	cmp	[IOCTL.inp_size], 3			; Data input must be at least 3 bytes

	jl	.fail

	mov	eax, [IOCTL.input]

	cmp	byte [eax], 1				; 1 means device number and bus number (pci) are given

	jne	.fail					; other types arent supported for this card yet

; check if the device is already listed

	mov	esi, device_list

	mov	ecx, [devices]

	test	ecx, ecx

	jz	.firstdevice

;        mov     eax, [IOCTL.input]                     ; get the pci bus and device numbers

	mov	ax , [eax+1]				;

  .nextdevice:

	mov	ebx, [esi]

	cmp	ax , word [device.pci_bus]		; compare with pci and device num in device list (notice the usage of word instead of byte)

	je	.find_devicenum 			; Device is already loaded, let's find it's device number

	add	esi, 4

	loop	.nextdevice

; This device doesnt have its own eth_device structure yet, lets create one

  .firstdevice:

	cmp	[devices], MAX_DEVICES			; First check if the driver can handle one more card

	jge	.fail

	allocate_and_clear ebx, device_size, .fail	; Allocate memory to put the device structure in

; Fill in the direct call addresses into the struct

	mov	[device.reset], reset

	mov	[device.transmit], transmit

	mov	[device.get_MAC], read_mac

	mov	[device.set_MAC], write_mac

	mov	[device.unload], unload

	mov	[device.name], my_service

; save the pci bus and device numbers

	mov	eax, [IOCTL.input]

	mov	cl , [eax+1]

	mov	[device.pci_bus], cl

	mov	cl , [eax+2]

	mov	[device.pci_dev], cl

; Now, it's time to find the base io addres of the PCI device

	find_io [device.pci_bus], [device.pci_dev], [device.io_addr]

	mov	eax, [device.io_addr]

	mov	[tpc.mmio_addr], eax

; We've found the io address, find IRQ now

	find_irq [device.pci_bus], [device.pci_dev], [device.irq_line]

	DEBUGF	2,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\

	[device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:8

; Ok, the eth_device structure is ready, let's probe the device

; Because initialization fires IRQ, IRQ handler must be aware of this device

	mov	eax, [devices]						; Add the device structure to our device list

	mov	[device_list+4*eax], ebx				; (IRQ handler uses this list to find device)

	inc	[devices]						;

	call	probe							; this function will output in eax

	test	eax, eax

	jnz	.err2							; If an error occured, exit

	mov	[device.type], NET_TYPE_ETH

	call	NetRegDev

	cmp	eax, -1

	je	.destroy

	ret

; If the device was already loaded, find the device number and return it in eax

  .find_devicenum:

	DEBUGF	2,"Trying to find device number of already registered device\n"

	mov	ebx, eax

	call	NetPtrToNum						; This kernel procedure converts a pointer to device struct in ebx

									; into a device number in edi

	mov	eax, edi						; Application wants it in eax instead

	DEBUGF	2,"Kernel says: %u\n", eax

	ret

; If an error occured, remove all allocated data and exit (returning -1 in eax)

  .destroy:

	; todo: reset device into virgin state

  .err2:

	dec	[devices]

  .err:

	DEBUGF	2,"removing device structure\n"

	stdcall KernelFree, ebx

  .fail:

	or	eax, -1

	ret

;------------------------------------------------------

endp

align 4

unload:

	ret

align 4

init_board:

	DEBUGF	1,"init_board\n"

	make_bus_master [device.pci_bus], [device.pci_dev]

	; Soft reset the chip

	set_io	0

	set_io	REG_ChipCmd

	mov	al, CMD_Reset

	out	dx, al

	; Check that the chip has finished the reset

	mov	ecx, 1000

	set_io	REG_ChipCmd

    @@: in	al, dx

	test	al, CMD_Reset

	jz	@f

	udelay	10

	loop	@b

    @@:

	; identify config method

	set_io	REG_TxConfig

	in	eax, dx

	and	eax, 0x7c800000

	DEBUGF	1,"init_board: TxConfig & 0x7c800000 = 0x%x\n", eax

	mov	esi, mac_info-8

    @@: add	esi, 8

	mov	ecx, eax

	and	ecx, [esi]

	cmp	ecx, [esi]

	jne	@b

	mov	eax, [esi+4]

	mov	[tpc.mcfg], eax

	mov	[tpc.pcfg], PCFG_METHOD_3

	READ_GMII_REG 3

	and	al, 0x0f

	or	al, al

	jnz	@f

	mov	[tpc.pcfg], PCFG_METHOD_1

	jmp	.pconf

    @@: dec	al

	jnz	.pconf

	mov	[tpc.pcfg], PCFG_METHOD_2

  .pconf:

	; identify chip attached to board

	mov	ecx, 10

	mov	eax, [tpc.mcfg]

    @@: dec	ecx

	js	@f

	cmp	eax, [rtl_chip_info+ecx*8]

	jne	@b

	mov	[tpc.chipset], ecx

	jmp	.match

    @@:

	; if unknown chip, assume array element #0, original RTL-8169 in this case

	DEBUGF	1,"init_board: PCI device: unknown chip version, assuming RTL-8169\n"

	set_io	REG_TxConfig

	in	eax, dx

	DEBUGF	1,"init_board: PCI device: TxConfig = 0x%x\n", eax

	mov	[tpc.chipset],	0

	xor	eax, eax

	inc	eax

	ret

  .match:

	xor	eax,eax

	ret

;***************************************************************************

;   Function

;      probe

;   Description

;      Searches for an ethernet card, enables it and clears the rx buffer

;      If a card was found, it enables the ethernet -> TCPIP link

;   Destroyed registers

;      eax, ebx, ecx, edx

;

;***************************************************************************

align 4

probe:

	DEBUGF	1,"probe\n"

	call	init_board

	call	read_mac

	call	PHY_config

;       DEBUGF  1,"K :   Set MAC Reg C+CR Offset 0x82h = 0x01h\n"

	set_io	0

	set_io	0x82

	mov	al, 0x01

	out	dx, al

	cmp	[tpc.mcfg], MCFG_METHOD_03

	jae	@f

;       DEBUGF  1,"K :   Set PCI Latency=0x40\n"

;       stdcall pci_write_config_byte,PCI_LATENCY_TIMER,0x40

   @@:

	cmp	[tpc.mcfg], MCFG_METHOD_02

	jne	@f

;       DEBUGF  1,"K :   Set MAC Reg C+CR Offset 0x82h = 0x01h\n"

	set_io	0x82

	mov	al, 0x01

	out	dx, al

;       DEBUGF  1,"K :   Set PHY Reg 0x0bh = 0x00h\n"

	WRITE_GMII_REG 0x0b, 0x0000	 ; w 0x0b 15 0 0

    @@:

	; if TBI is not enabled

	set_io	0

	set_io	REG_PHYstatus

	in	al, dx

	test	al, PHYS_TBI_Enable

	jz	.tbi_dis

	READ_GMII_REG PHY_AUTO_NEGO_REG

	; enable 10/100 Full/Half Mode, leave PHY_AUTO_NEGO_REG bit4:0 unchanged

	and	eax, 0x0C1F

	or	eax, PHY_Cap_10_Half or PHY_Cap_10_Full or PHY_Cap_100_Half or PHY_Cap_100_Full

	WRITE_GMII_REG PHY_AUTO_NEGO_REG, ax

	; enable 1000 Full Mode

	WRITE_GMII_REG PHY_1000_CTRL_REG, PHY_Cap_1000_Full or PHY_Cap_1000_Half ; rtl8168

	; Enable auto-negotiation and restart auto-nigotiation

	WRITE_GMII_REG PHY_CTRL_REG, PHY_Enable_Auto_Nego or PHY_Restart_Auto_Nego

	udelay	100

	mov	ecx, 10000

	; wait for auto-negotiation process

    @@: dec	ecx

	jz	@f

	set_io	0

	READ_GMII_REG PHY_STAT_REG

	udelay	100

	test	eax, PHY_Auto_Neco_Comp

	jz	@b

	set_io	REG_PHYstatus

	in	al, dx

	jmp	@f

  .tbi_dis:

	udelay	100

    @@:

;***************************************************************************

;   Function

;      rt8169_reset

;   Description

;      Place the chip (ie, the ethernet card) into a virgin state

;   Destroyed registers

;      eax, ebx, ecx, edx

;

;***************************************************************************

align 4

reset:

	DEBUGF	1,"reset\n"

	lea	eax, [tx_ring]

	mov	[tpc.TxDescArrays], eax

	mov	[tpc.TxDescArray], eax

	lea	eax, [rx_ring]

	mov	[tpc.RxDescArrays], eax

	mov	[tpc.RxDescArray], eax

	call	init_ring

	call	hw_start

; clear packet/byte counters

	xor	eax, eax

	lea	edi, [device.bytes_tx]

	mov	ecx, 6

	rep	stosd

	mov	[device.mtu], 1500

	xor	eax, eax

	ret

align 4

PHY_config:

	DEBUGF	1,"hw_PHY_config: priv.mcfg=%d, priv.pcfg=%d\n",[tpc.mcfg],[tpc.pcfg]

	cmp	[tpc.mcfg], MCFG_METHOD_04

	jne	.not_4

	set_io	0

;       WRITE_GMII_REG 0x1F, 0x0001

;       WRITE_GMII_REG 0x1b, 0x841e

;       WRITE_GMII_REG 0x0e, 0x7bfb

;       WRITE_GMII_REG 0x09, 0x273a

	WRITE_GMII_REG 0x1F, 0x0002

	WRITE_GMII_REG 0x01, 0x90D0

	WRITE_GMII_REG 0x1F, 0x0000

	jmp	.exit

  .not_4:

	cmp	[tpc.mcfg], MCFG_METHOD_02

	je	@f

	cmp	[tpc.mcfg], MCFG_METHOD_03

	jne	.not_2_or_3

    @@:

	set_io	0

	WRITE_GMII_REG 0x1F, 0x0001

	WRITE_GMII_REG 0x15, 0x1000

	WRITE_GMII_REG 0x18, 0x65C7

	WRITE_GMII_REG 0x04, 0x0000

	WRITE_GMII_REG 0x03, 0x00A1

	WRITE_GMII_REG 0x02, 0x0008

	WRITE_GMII_REG 0x01, 0x1020

	WRITE_GMII_REG 0x00, 0x1000

	WRITE_GMII_REG 0x04, 0x0800

	WRITE_GMII_REG 0x04, 0x0000

	WRITE_GMII_REG 0x04, 0x7000

	WRITE_GMII_REG 0x03, 0xFF41

	WRITE_GMII_REG 0x02, 0xDE60

	WRITE_GMII_REG 0x01, 0x0140

	WRITE_GMII_REG 0x00, 0x0077

	WRITE_GMII_REG 0x04, 0x7800

	WRITE_GMII_REG 0x04, 0x7000

	WRITE_GMII_REG 0x04, 0xA000

	WRITE_GMII_REG 0x03, 0xDF01

	WRITE_GMII_REG 0x02, 0xDF20

	WRITE_GMII_REG 0x01, 0xFF95

	WRITE_GMII_REG 0x00, 0xFA00

	WRITE_GMII_REG 0x04, 0xA800

	WRITE_GMII_REG 0x04, 0xA000

	WRITE_GMII_REG 0x04, 0xB000

	WRITE_GMII_REG 0x03, 0xFF41

	WRITE_GMII_REG 0x02, 0xDE20

	WRITE_GMII_REG 0x01, 0x0140

	WRITE_GMII_REG 0x00, 0x00BB

	WRITE_GMII_REG 0x04, 0xB800

	WRITE_GMII_REG 0x04, 0xB000

	WRITE_GMII_REG 0x04, 0xF000

	WRITE_GMII_REG 0x03, 0xDF01

	WRITE_GMII_REG 0x02, 0xDF20

	WRITE_GMII_REG 0x01, 0xFF95

	WRITE_GMII_REG 0x00, 0xBF00

	WRITE_GMII_REG 0x04, 0xF800

	WRITE_GMII_REG 0x04, 0xF000

	WRITE_GMII_REG 0x04, 0x0000

	WRITE_GMII_REG 0x1F, 0x0000

	WRITE_GMII_REG 0x0B, 0x0000

	jmp	.exit

  .not_2_or_3:

	DEBUGF	1,"tpc.mcfg=%d, discard hw PHY config\n", [tpc.mcfg]

  .exit:

	ret

align 4

set_rx_mode:

	DEBUGF	1,"set_rx_mode\n"

	; IFF_ALLMULTI

	; Too many to filter perfectly -- accept all multicasts

	set_io	0

	set_io	REG_RxConfig

	in	eax, dx

	mov	ecx, [tpc.chipset]

	and	eax, [rtl_chip_info + ecx * 8 + 4] ; RxConfigMask

	or	eax, rx_config or (RXM_AcceptBroadcast or RXM_AcceptMulticast or RXM_AcceptMyPhys)

	out	dx, eax

	; Multicast hash filter

	set_io	REG_MAR0 + 0

	or	eax, -1

	out	dx, eax

	set_io	REG_MAR0 + 4

	out	dx, eax

	ret

align 4

init_ring:

	DEBUGF	1,"init_ring\n"

	xor	eax, eax

	mov	[tpc.cur_rx], eax

	mov	[tpc.cur_tx], eax

	lea	edi, [tx_ring]

	mov	ecx, (NUM_TX_DESC * tx_desc.size) / 4

	rep	stosd

	lea	edi, [rx_ring]

	mov	ecx, (NUM_RX_DESC * rx_desc.size) / 4

	rep	stosd

	mov	edi, [tpc.RxDescArray]

	mov	ecx, NUM_RX_DESC

  .loop:

	push	ecx

	stdcall KernelAlloc, RX_BUF_SIZE

	mov	[edi + rx_desc.buf_soft_addr], eax

	call	GetPgAddr

	mov	dword [edi + rx_desc.buf_addr], eax

	mov	[edi + rx_desc.status], DSB_OWNbit or RX_BUF_SIZE

	add	edi, rx_desc.size

	pop	ecx

	loop	.loop

	or	[edi - rx_desc.size + rx_desc.status], DSB_EORbit

	ret

align 4

hw_start:

	DEBUGF	1,"hw_start\n"

; attach int handler

	movzx	eax, [device.irq_line]

	DEBUGF	1,"Attaching int handler to irq %x\n", eax:1

	stdcall AttachIntHandler, eax, int_handler, dword 0

	; Soft reset the chip

	set_io	0

	set_io	REG_ChipCmd

	mov	al, CMD_Reset

	out	dx, al

	; Check that the chip has finished the reset

	mov	ecx, 1000

	set_io	REG_ChipCmd

    @@: in	al, dx

	test	al, CMD_Reset

	jz	@f

	udelay	10

	loop	@b

    @@:

	set_io	REG_Cfg9346

	mov	al, CFG_9346_Unlock

	out	dx, al

	set_io	REG_ChipCmd

	mov	al, CMD_TxEnb or CMD_RxEnb

	out	dx, al

	set_io	REG_ETThReg

	mov	al, ETTh

	out	dx, al

	; For gigabit rtl8169

	set_io	REG_RxMaxSize

	mov	ax, RxPacketMaxSize

	out	dx, ax

	; Set Rx Config register

	set_io	REG_RxConfig

	in	ax, dx

	mov	ecx, [tpc.chipset]

	and	eax, [rtl_chip_info + ecx * 8 + 4] ; RxConfigMask

	or	eax, rx_config

	out	dx, eax

	; Set DMA burst size and Interframe Gap Time

	set_io	REG_TxConfig

	mov	eax, (TX_DMA_BURST shl TXC_DMAShift) or (InterFrameGap shl TXC_InterFrameGapShift)

	out	dx, eax

	set_io	REG_CPlusCmd

	in	ax, dx

	out	dx, ax

	in	ax, dx

	or	ax, 1 shl 3

	cmp	[tpc.mcfg], MCFG_METHOD_02

	jne	@f

	cmp	[tpc.mcfg], MCFG_METHOD_03

	jne	@f

	or	ax,1 shl 14

	DEBUGF	1,"Set MAC Reg C+CR Offset 0xE0: bit-3 and bit-14\n"

	jmp	.set

    @@:

	DEBUGF	1," Set MAC Reg C+CR Offset 0xE0: bit-3\n"

  .set:

	set_io	REG_CPlusCmd

	out	dx, ax

	set_io	0xE2

;        mov     ax, 0x1517

;        out     dx, ax

;        mov     ax, 0x152a

;        out     dx, ax

;        mov     ax, 0x282a

;        out     dx, ax

	xor	ax, ax

	out	dx, ax

	xor	eax, eax

	mov	[tpc.cur_rx], eax

	lea	eax, [tx_ring]

	GetRealAddr

	set_io	REG_TxDescStartAddr

	out	dx, eax

	lea	eax, [rx_ring]

	GetRealAddr

	set_io	REG_RxDescStartAddr

	out	dx, eax

	set_io	REG_Cfg9346

	mov	al, CFG_9346_Lock

	out	dx, al

	udelay	10

	xor	eax, eax

	set_io	REG_RxMissed

	out	dx, eax

	call	set_rx_mode

	set_io	0

	; no early-rx interrupts

	set_io	REG_MultiIntr

	in	ax, dx

	and	ax, 0xF000

	out	dx, ax

	; set interrupt mask

	set_io	REG_IntrMask

	mov	ax, intr_mask

	out	dx, ax

	xor	eax, eax

	ret

align 4

read_mac:

	set_io	0

	set_io	REG_MAC0

	xor	ecx, ecx

	lea	edi, [device.mac]

	mov	ecx, MAC_ADDR_LEN

	; Get MAC address. FIXME: read EEPROM

    @@: in	al, dx

	stosb

	inc	edx

	loop	@r

	DEBUGF	1,"MAC = %x-%x-%x-%x-%x-%x\n",[device.mac+0]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2

	ret

align 4

write_mac:

	ret	6

;***************************************************************************

;   Function

;      transmit

;   Description

;      Transmits a packet of data via the ethernet card

;

;   Destroyed registers

;      eax, edx, esi, edi

;

;***************************************************************************

align 4

transmit:

	DEBUGF	1,"Transmitting packet, buffer:%x, size:%u\n", [esp+4], [esp+8]

	mov	eax, [esp+4]

	DEBUGF	1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\

	[eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\

	[eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\

	[eax+13]:2,[eax+12]:2

	cmp	dword [esp+8], MAX_ETH_FRAME_SIZE

	ja	.fail

;----------------------------------

; Find currentTX descriptor address

	mov	eax, tx_desc.size

	mul	[tpc.cur_tx]

	lea	esi, [eax + tx_ring]

;---------------------------

; Program the packet pointer

	mov	eax, [esp + 4]

	mov	[esi + tx_desc.buf_soft_addr], eax

	GetRealAddr

	mov	dword [esi + tx_desc.buf_addr], eax

;------------------------

; Program the packet size

	mov	eax, [esp + 8]

    @@: or	eax, DSB_OWNbit or DSB_FSbit or DSB_LSbit

	cmp	[tpc.cur_tx], NUM_TX_DESC - 1

	jne	@f

	or	eax, DSB_EORbit

    @@: mov	[esi + tx_desc.status], eax

;-----------------------------------------

; Set the polling bit (start transmission)

	set_io	0

	set_io	REG_TxPoll

	mov	al, 0x40     ; set polling bit

	out	dx, al

;-----------------------

; Update TX descriptor

	inc	[tpc.cur_tx]

	and	[tpc.cur_tx], NUM_TX_DESC - 1

;-------------

; Update stats

	inc	[device.packets_tx]

	mov	eax, [esp+8]

	add	dword [device.bytes_tx], eax

	adc	dword [device.bytes_tx + 4], 0

	ret	8

  .fail:

	DEBUGF	1,"transmit failed\n"

	or	eax, -1

	stdcall KernelFree, [esp+4]

	ret	8

;;;DSB_OWNbit

;;;;;;;;;;;;;;;;;;;;;;;

;;                   ;;

;; Interrupt handler ;;

;;                   ;;

;;;;;;;;;;;;;;;;;;;;;;;

align 4

int_handler:

	DEBUGF	1,"IRQ %x ",eax:2

; find pointer of device wich made IRQ occur

	mov	ecx, [devices]

	test	ecx, ecx

	jz	.fail

	mov	esi, device_list

  .nextdevice:

	mov	ebx, dword [esi]

	set_io	0

	set_io	REG_IntrStatus

	in	ax, dx

	test	ax, ax

	jnz	.got_it