Subversion Repositories Kolibri OS

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

;;                                                                 ;;

;; Copyright (C) KolibriOS team 2004-2013. All rights reserved.    ;;

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

;;                                                                 ;;

;;  MTD80x driver for KolibriOS                                    ;;

;;                                                                 ;;

;;  Based on mtd80x.c from the etherboot project                   ;;

;;                                                                 ;;

;;  Written by hidnplayr@kolibrios.org                             ;;

;;                                                                 ;;

;;          GNU GENERAL PUBLIC LICENSE                             ;;

;;             Version 2, June 1991                                ;;

;;                                                                 ;;

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

format MS COFF

        API_VERSION             =   0x01000100

        DRIVER_VERSION          =   5

        MAX_DEVICES             =   16

        DEBUG                   =   1

        __DEBUG__               =   1

        __DEBUG_LEVEL__         =   1

        NUM_TX_DESC             =   4

        NUM_RX_DESC             =   4

include 'proc32.inc'

include 'imports.inc'

include 'fdo.inc'

include 'netdrv.inc'

public START

public service_proc

public version

; for different PHY

    MysonPHY            =   1

    AhdocPHY            =   2

    SeeqPHY             =   3

    MarvellPHY          =   4

    Myson981            =   5

    LevelOnePHY         =   6

    OtherPHY            =   10

; Offsets to the Command and Status Registers.

    PAR0                =   0x0        ; physical address 0-3

    PAR1                =   0x04       ; physical address 4-5

    MAR0                =   0x08       ; multicast address 0-3

    MAR1                =   0x0C       ; multicast address 4-7

    FAR0                =   0x10       ; flow-control address 0-3

    FAR1                =   0x14       ; flow-control address 4-5

    TCRRCR              =   0x18       ; receive & transmit configuration

    BCR                 =   0x1C       ; bus command

    TXPDR               =   0x20       ; transmit polling demand

    RXPDR               =   0x24       ; receive polling demand

    RXCWP               =   0x28       ; receive current word pointer

    TXLBA               =   0x2C       ; transmit list base address

    RXLBA               =   0x30       ; receive list base address

    ISR                 =   0x34       ; interrupt status

    IMR                 =   0x38       ; interrupt mask

    FTH                 =   0x3C       ; flow control high/low threshold

    MANAGEMENT          =   0x40       ; bootrom/eeprom and mii management

    TALLY               =   0x44       ; tally counters for crc and mpa

    TSR                 =   0x48       ; tally counter for transmit status

    BMCRSR              =   0x4c       ; basic mode control and status

    PHYIDENTIFIER       =   0x50       ; phy identifier

    ANARANLPAR          =   0x54       ; auto-negotiation advertisement and link partner ability

    ANEROCR             =   0x58       ; auto-negotiation expansion and pci conf.

    BPREMRPSR           =   0x5c       ; bypass & receive error mask and phy status

; Bits in the interrupt status/enable registers.

    RFCON               =   0x00020000 ; receive flow control xon packet

    RFCOFF              =   0x00010000 ; receive flow control xoff packet

    LSCStatus           =   0x00008000 ; link status change

    ANCStatus           =   0x00004000 ; autonegotiation completed

    FBE                 =   0x00002000 ; fatal bus error

    FBEMask             =   0x00001800 ; mask bit12-11

    ParityErr           =   0x00000000 ; parity error

    TargetErr           =   0x00001000 ; target abort

    MasterErr           =   0x00000800 ; master error

    TUNF                =   0x00000400 ; transmit underflow

    ROVF                =   0x00000200 ; receive overflow

    ETI                 =   0x00000100 ; transmit early int

    ERI                 =   0x00000080 ; receive early int

    CNTOVF              =   0x00000040 ; counter overflow

    RBU                 =   0x00000020 ; receive buffer unavailable

    TBU                 =   0x00000010 ; transmit buffer unavilable

    TI                  =   0x00000008 ; transmit interrupt

    RI                  =   0x00000004 ; receive interrupt

    RxErr               =   0x00000002 ; receive error

; Bits in the NetworkConfig register.

    RxModeMask          =   0xe0

    AcceptAllPhys       =   0x80        ; promiscuous mode

    AcceptBroadcast     =   0x40        ; accept broadcast

    AcceptMulticast     =   0x20        ; accept mutlicast

    AcceptRunt          =   0x08        ; receive runt pkt

    ALP                 =   0x04        ; receive long pkt

    AcceptErr           =   0x02        ; receive error pkt

    AcceptMyPhys        =   0x00000000

    RxEnable            =   0x00000001

    RxFlowCtrl          =   0x00002000

    TxEnable            =   0x00040000

    TxModeFDX           =   0x00100000

    TxThreshold         =   0x00e00000

    PS1000              =   0x00010000

    PS10                =   0x00080000

    FD                  =   0x00100000

; Bits in network_desc.status

    RXOWN               =   0x80000000 ; own bit

    FLNGMASK            =   0x0fff0000 ; frame length

    FLNGShift           =   16

    MARSTATUS           =   0x00004000 ; multicast address received

    BARSTATUS           =   0x00002000 ; broadcast address received

    PHYSTATUS           =   0x00001000 ; physical address received

    RXFSD               =   0x00000800 ; first descriptor

    RXLSD               =   0x00000400 ; last descriptor

    ErrorSummary        =   0x80       ; error summary

    RUNT                =   0x40       ; runt packet received

    LONG                =   0x20       ; long packet received

    FAE                 =   0x10       ; frame align error

    CRC                 =   0x08       ; crc error

    RXER                =   0x04       ; receive error

; rx_desc_control_bits

    RXIC                =   0x00800000 ; interrupt control

    RBSShift            =   0

; tx_desc_status_bits

    TXOWN               =   0x80000000 ; own bit

    JABTO               =   0x00004000 ; jabber timeout

    CSL                 =   0x00002000 ; carrier sense lost

    LC                  =   0x00001000 ; late collision

    EC                  =   0x00000800 ; excessive collision

    UDF                 =   0x00000400 ; fifo underflow

    DFR                 =   0x00000200 ; deferred

    HF                  =   0x00000100 ; heartbeat fail

    NCRMask             =   0x000000ff ; collision retry count

    NCRShift            =   0

; tx_desc_control_bits

    TXIC                =   0x80000000 ; interrupt control

    ETIControl          =   0x40000000 ; early transmit interrupt

    TXLD                =   0x20000000 ; last descriptor

    TXFD                =   0x10000000 ; first descriptor

    CRCEnable           =   0x08000000 ; crc control

    PADEnable           =   0x04000000 ; padding control

    RetryTxLC           =   0x02000000 ; retry late collision

    PKTSMask            =   0x3ff800   ; packet size bit21-11

    PKTSShift           =   11

    TBSMask             =   0x000007ff ; transmit buffer bit 10-0

    TBSShift            =   0

; BootROM/EEPROM/MII Management Register

    MASK_MIIR_MII_READ  =   0x00000000

    MASK_MIIR_MII_WRITE =   0x00000008

    MASK_MIIR_MII_MDO   =   0x00000004

    MASK_MIIR_MII_MDI   =   0x00000002

    MASK_MIIR_MII_MDC   =   0x00000001

; ST+OP+PHYAD+REGAD+TA

    OP_READ             =   0x6000 ; ST:01+OP:10+PHYAD+REGAD+TA:Z0

    OP_WRITE            =   0x5002 ; ST:01+OP:01+PHYAD+REGAD+TA:10

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

;      Constants for Myson PHY

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

    MysonPHYID          =   0xd0000302

    MysonPHYID0         =   0x0302

    StatusRegister      =   18

    SPEED100            =   0x0400 ; bit10

    FULLMODE            =   0x0800 ; bit11

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

;      Constants for Seeq 80225 PHY

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

    SeeqPHYID0          =   0x0016

    MIIRegister18       =   18

    SPD_DET_100         =   0x80

    DPLX_DET_FULL       =   0x40

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

;      Constants for Ahdoc 101 PHY

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

    AhdocPHYID0         =   0x0022

    DiagnosticReg       =   18

    DPLX_FULL           =   0x0800

    Speed_100           =   0x0400

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

;      Constants

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

    MarvellPHYID0       =   0x0141

    LevelOnePHYID0      =   0x0013

    MII1000BaseTControlReg      =   9

    MII1000BaseTStatusReg       =   10

    SpecificReg         =   17

; for 1000BaseT Control Register

    PHYAbletoPerform1000FullDuplex =   0x0200

    PHYAbletoPerform1000HalfDuplex =   0x0100

    PHY1000AbilityMask             =   0x300

; for phy specific status register, marvell phy.

    SpeedMask      =   0x0c000

    Speed_1000M    =   0x08000

    Speed_100M     =   0x4000

    Speed_10M      =   0

    Full_Duplex    =   0x2000

; for phy specific status register, levelone phy

    LXT1000_100M   =   0x08000

    LXT1000_1000M  =   0x0c000

    LXT1000_Full   =   0x200

; for PHY

    LinkIsUp       =   0x0004

    LinkIsUp2      =   0x00040000

virtual at 0

        mtd_desc:

        .status                 dd ?

        .control                dd ?

        .buffer                 dd ?

        .next_desc              dd ?

        .next_desc_logical      dd ?

        .skbuff                 dd ?

        .reserved1              dd ?

        .reserved2              dd ?

        .size = $

end virtual

virtual at ebx

        device:

        ETH_DEVICE

        .tx_desc        rb NUM_TX_DESC*mtd_desc.size

        .rx_desc        rb NUM_RX_DESC*mtd_desc.size

        .io_addr        dd ?

        .pci_bus        dd ?

        .pci_dev        dd ?

        .irq_line       db ?

        .dev_id         dw ?

        .flags          dd ?

        .crvalue        dd ?

        .bcrvalue       dd ?

        .cur_rx         dd ?

        .cur_tx         dd ?

; These values are keep track of the transceiver/media in use.

        .linkok         dd ?

        .line_speed     dd ?

        .duplexmode     dd ?

        .default_port   dd ?

        .PHYType        dd ?

; MII transceiver section.

        .mii_cnt        dd ?    ; MII device addresses.

        .phys           db ?    ; MII device addresses.

        device_size = $ - device

end virtual

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 %s driver\n", my_service

        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

        jb      .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

        jb      .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     al, byte[device.pci_bus]

        jne     @f

        cmp     ah, byte[device.pci_dev]

        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

        jae     .fail

        allocate_and_clear ebx, device_size, .fail

; 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]

        movzx   ecx, byte[eax+1]

        mov     [device.pci_bus], ecx

        movzx   ecx, byte[eax+2]

        mov     [device.pci_dev], ecx

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

        PCI_find_io

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

        PCI_find_irq

        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"

        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

;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;

;;                                                                        ;;

;;        Actual Hardware dependent code starts here                      ;;

;;                                                                        ;;

;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;;

align 4

unload:

        ; TODO: (in this particular order)

        ;

        ; - Stop the device

;    /* Disable Tx Rx*/

;    outl( mtdx.crvalue & (~TxEnable) & (~RxEnable), mtdx.ioaddr + TCRRCR );

;

;    /* Reset the chip to erase previous misconfiguration. */

;    mtd_reset(nic);

        ; - Detach int handler

        ; - Remove device from local list (device_list)

        ; - call unregister function in kernel

        ; - Remove all allocated structures and buffers the card used

        or      eax,-1

ret

;-------

;

; PROBE

;

;-------

align 4

probe:

        DEBUGF  2,"Probing mtd80x device\n"

        PCI_make_bus_master

        stdcall PciRead32, [device.pci_bus], [device.pci_dev], 0

        cmp     ax, 0x1516

        jne     .notfound

        shr     eax, 16

        mov     [device.dev_id], ax

        cmp     ax, 0x0800

        je      .has_mii_xcvr

        cmp     ax, 0x0803

        je      .has_chip_xcvr

        cmp     ax, 0x0891

        je      .has_mii_xcvr

  .notfound:

        DEBUGF  1,"Device not supported!\n"

        xor     eax, eax

        dec     eax

        ret

  .has_chip_xcvr:

        DEBUGF  1,"Device has chip xcvr\n"

        jmp     .xcvr_set

  .has_mii_xcvr:

        DEBUGF  1,"Device has mii xcvr\n"

  .xcvr_set:

        call    read_mac

; Reset the chip to erase previous misconfiguration.

        set_io  0

        set_io  BCR

        xor     eax, eax

        inc     eax

        out     dx, eax

; find the connected MII xcvrs

        cmp     [device.dev_id], 0x0803

        je      .is_803

;        int     phy, phy_idx =   0;

;

;        for (phy =   1; phy < 32 && phy_idx < 1; phy++) {

;            int mii_status =   mdio_read(nic, phy, 1);

;

;            if (mii_status !=   0xffff && mii_status !=   0x0000) {

;                mtdx.phys[phy_idx] =   phy;

;

;                DBG ( "%s: MII PHY found at address %d, status "

;                      "0x%4.4x.\n", mtdx.nic_name, phy, mii_status );

;                /* get phy type */

;                {

;                    unsigned int data;

;

;                    data =   mdio_read(nic, mtdx.phys[phy_idx], 2);

;                    if (data equ=   SeeqPHYID0)

;                        mtdx.PHYType =   SeeqPHY;

;                    else if (data equ=   AhdocPHYID0)

;                        mtdx.PHYType =   AhdocPHY;

;                    else if (data equ=   MarvellPHYID0)

;                        mtdx.PHYType =   MarvellPHY;

;                    else if (data equ=   MysonPHYID0)

;                        mtdx.PHYType =   Myson981;

;                    else if (data equ=   LevelOnePHYID0)

;                        mtdx.PHYType =   LevelOnePHY;

;                    else

;                        mtdx.PHYType =   OtherPHY;

;                }

;                phy_idx++;

;            }

;        }

;

;        mtdx.mii_cnt =   phy_idx;

;        if (phy_idx equ=   0) {

;            printf("%s: MII PHY not found -- this device may "

;                   "not operate correctly.\n", mtdx.nic_name);

;        }

        jmp     .no_803

  .is_803:

        mov     [device.phys], 32

; get phy type

        set_io  0

        set_io  PHYIDENTIFIER

        in      eax, dx

        cmp     eax, MysonPHYID

        jne     @f

        mov     [device.PHYType], MysonPHY

        DEBUGF  1,"MysonPHY\n"

        jmp     .no_803

       @@:

        mov     [device.PHYType], OtherPHY

        DEBUGF  1,"OtherPHY\n"

  .no_803:

;-------

;

; RESET

;

;-------

align 4

reset:

        DEBUGF  1,"Resetting mtd80x\n"

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

; insert irq handler on given irq

        movzx   eax, [device.irq_line]

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

        stdcall AttachIntHandler, eax, int_handler, dword 0

        test    eax, eax

        jnz     @f

        DEBUGF  1,"\nCould not attach int handler!\n"

;        or      eax, -1

;        ret

  @@:

; Reset the chip to erase previous misconfiguration.

        set_io  0

        set_io  BCR

        xor     eax, eax

        inc     eax

        out     dx, eax

        call    init_ring

; Initialize other registers.

; Configure the PCI bus bursts and FIFO thresholds.

        mov     [device.bcrvalue], 0x10 ; little-endian, 8 burst length

        mov     [device.crvalue], 0xa00 ; 128 burst length

        cmp     [device.dev_id], 0x891

        jne     @f

        or      [device.bcrvalue], 0x200       ; set PROG bit

        or      [device.crvalue], 0x02000000   ; set enhanced bit

       @@:

        or      [device.crvalue], RxEnable + TxThreshold + TxEnable

        call    set_rx_mode

        set_io  0

        set_io  BCR

        mov     eax, [device.bcrvalue]

        out     dx, eax

        set_io  TCRRCR

        mov     eax, [device.crvalue]

        out     dx, eax

        call    getlinkstatus

        call    getlinktype

; Restart Rx engine if stopped.

        set_io  0

        set_io  RXPDR

        xor     eax, eax

        out     dx, eax

; Enable interrupts

        set_io  0

        set_io  ISR

        mov     eax, (FBE or TUNF or CNTOVF or RBU or TI or RI)

        out     dx, eax

        set_io  IMR

;        mov     eax, (FBE or TUNF or CNTOVF or RBU or TI or RI)

        out     dx, eax

; clear packet/byte counters

        xor     eax, eax

        lea     edi, [device.bytes_tx]

        mov     ecx, 6

        rep     stosd

        mov     [device.mtu], 1514

        xor     eax, eax

        ret

align 4

init_ring:

        DEBUGF  1,"initializing rx and tx ring\n"

; Initialize all Rx descriptors

        lea     esi, [device.rx_desc]

        mov     [device.cur_rx], esi

        mov     ecx, NUM_RX_DESC

  .rx_desc_loop:

        mov     [esi + mtd_desc.status], RXOWN

        mov     [esi + mtd_desc.control], 1536 shl RBSShift

        lea     eax, [esi + mtd_desc.size]

        mov     [esi + mtd_desc.next_desc_logical], eax

        push    ecx esi

        GetRealAddr

        mov     [esi + mtd_desc.next_desc], eax

        stdcall KernelAlloc, 1536

        pop     esi

        push    esi

        mov     [esi + mtd_desc.skbuff], eax

        call    GetPgAddr

        pop     esi ecx

        mov     [esi + mtd_desc.buffer], eax

        add     esi, mtd_desc.size

        loop    .rx_desc_loop

; Mark the last entry as wrapping the ring.

        lea     eax, [device.rx_desc]

        mov     [esi - mtd_desc.size + mtd_desc.next_desc_logical], eax

        push    esi

        GetRealAddr

        pop     esi

        mov     [esi - mtd_desc.size + mtd_desc.next_desc], eax

        set_io  0

        set_io  RXLBA

        out     dx, eax

; Initialize all Tx descriptors

        lea     esi, [device.tx_desc]

        mov     [device.cur_tx], esi

        mov     ecx, NUM_TX_DESC

  .tx_desc_loop:

        mov     [esi + mtd_desc.status], 0

        lea     eax, [esi + mtd_desc.size]

        mov     [esi + mtd_desc.next_desc_logical], eax

        push    ecx esi

        GetRealAddr

        pop     esi ecx

        mov     [esi + mtd_desc.next_desc], eax

        add     esi, mtd_desc.size

        loop    .tx_desc_loop

; Mark the last entry as wrapping the ring.

        lea     eax, [device.tx_desc]

        mov     [esi - mtd_desc.size + mtd_desc.next_desc_logical], eax

        push    esi

        GetRealAddr

        pop     esi

        mov     [esi - mtd_desc.size + mtd_desc.next_desc], eax

        set_io  0

        set_io  TXLBA

        out     dx, eax

        ret

align 4

set_rx_mode:

        DEBUGF  1,"Setting RX mode\n"

; Too many to match, or accept all multicasts.

        set_io  0

        set_io  MAR0

        xor     eax, eax

        not     eax

        out     dx, eax

        set_io  MAR1

        out     dx, eax

        and     [device.crvalue], not (RxModeMask)

        or      [device.crvalue], AcceptBroadcast + AcceptMulticast + AcceptMyPhys

        ret

align 4

getlinkstatus:

        DEBUGF  1,"Getting link status\n"

        mov     [device.linkok], 0

        cmp     [device.PHYType], MysonPHY

        jne     .no_myson_phy

        set_io  0

        set_io  BMCRSR

        mov     ecx, 1000

  .loop1:

        in      eax, dx

        test    eax, LinkIsUp2

        jnz     .link_ok

        push    ecx edx ebx

        mov     esi, 10

        call    Sleep

        pop     ebx edx ecx

        loop    .loop1

        ret

  .no_myson_phy:

;        for (i =   0; i < DelayTime; ++i) {

;            if (mdio_read(nic, mtdx.phys[0], MII_BMSR) & BMSR_LSTATUS) {

;                mtdx.linkok =   1;

;                return;

;            }

;            m80x_delay(100);

        ret

  .link_ok:

        DEBUGF  1,"Link is up\n"

        inc     [device.linkok]

        ret

align 4

getlinktype:

        DEBUGF  1,"Getting link type\n"

        cmp     [device.PHYType], MysonPHY

        jne     .no_myson_phy

        DEBUGF  1,"myson PHY\n"

        set_io  0

        set_io  TCRRCR

        in      eax, dx

        mov     [device.duplexmode], 1  ; 1 =   half duplex

        test    eax, FD

        jne     @f

        DEBUGF  1,"full duplex\n"

        inc     [device.duplexmode]     ; 2 =   full duplex

       @@:

        mov     [device.line_speed], 1  ; 1 =   10M

        test    eax, PS10

        jne     @f

        DEBUGF  1,"100mbit\n"

        inc     [device.line_speed]     ; 2 =   100M

       @@:

        ret

  .no_myson_phy:

        DEBUGF  1,"no myson phy\n"

;        if (mtdx.PHYType equ=   SeeqPHY) { /* this PHY is SEEQ 80225 */

;            unsigned int data;

;

;            data =   mdio_read(dev, mtdx.phys[0], MIIRegister18);

;            if (data & SPD_DET_100)

;                mtdx.line_speed =   2; /* 100M */

;            else

;                mtdx.line_speed =   1; /* 10M */

;            if (data & DPLX_DET_FULL)

;                mtdx.duplexmode =   2; /* full duplex mode */

;            else

;                mtdx.duplexmode =   1; /* half duplex mode */

;        } else if (mtdx.PHYType equ=   AhdocPHY) {

;            unsigned int data;

;

;            data =   mdio_read(dev, mtdx.phys[0], DiagnosticReg);

;            if (data & Speed_100)

;                mtdx.line_speed =   2; /* 100M */

;            else

;                mtdx.line_speed =   1; /* 10M */

;            if (data & DPLX_FULL)

;                mtdx.duplexmode =   2; /* full duplex mode */

;            else

;                mtdx.duplexmode =   1; /* half duplex mode */

;        }

;        else if (mtdx.PHYType equ=   MarvellPHY) {

;            unsigned int data;

;

;            data =   mdio_read(dev, mtdx.phys[0], SpecificReg);

;            if (data & Full_Duplex)

;                mtdx.duplexmode =   2; /* full duplex mode */

;            else

;                mtdx.duplexmode =   1; /* half duplex mode */

;            data &=   SpeedMask;

;            if (data equ=   Speed_1000M)

;                mtdx.line_speed =   3; /* 1000M */

;            else if (data equ=   Speed_100M)

;                mtdx.line_speed =   2; /* 100M */

;            else

;                mtdx.line_speed =   1; /* 10M */

;        }

;        else if (mtdx.PHYType equ=   Myson981) {

;            unsigned int data;

;

;            data =   mdio_read(dev, mtdx.phys[0], StatusRegister);

;

;            if (data & SPEED100)

;                mtdx.line_speed =   2;

;            else

;                mtdx.line_speed =   1;

;

;            if (data & FULLMODE)

;                mtdx.duplexmode =   2;

;            else

;                mtdx.duplexmode =   1;

;        }

;        else if (mtdx.PHYType equ=   LevelOnePHY) {

;            unsigned int data;

;

;            data =   mdio_read(dev, mtdx.phys[0], SpecificReg);

;            if (data & LXT1000_Full)

;                mtdx.duplexmode =   2; /* full duplex mode */

;            else

;                mtdx.duplexmode =   1; /* half duplex mode */

;            data &=   SpeedMask;

;            if (data equ=   LXT1000_1000M)

;                mtdx.line_speed =   3; /* 1000M */

;            else if (data equ=   LXT1000_100M)

;                mtdx.line_speed =   2; /* 100M */

;            else

 ;               mtdx.line_speed =   1; /* 10M */

  ;      }

;        // chage crvalue

;        // mtdx.crvalue&equ(~PS10)&(~FD);

;        mtdx.crvalue &=   (~PS10) & (~FD) & (~PS1000);

;        if (mtdx.line_speed equ=   1)

;            mtdx.crvalue |=   PS10;

;        else if (mtdx.line_speed equ=   3)

;            mtdx.crvalue |=   PS1000;

;        if (mtdx.duplexmode equ=   2)

;            mtdx.crvalue |=   FD;

;

        ret

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

;;                                         ;;

;; Transmit                                ;;

;;                                         ;;

;; In: buffer pointer in [esp+4]           ;;

;;     size of buffer in [esp+8]           ;;

;;     pointer to device structure in ebx  ;;

;;                                         ;;

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

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], 1514

        ja      .fail

        mov     esi, [device.cur_tx]

        push    [esi + mtd_desc.next_desc_logical]

        pop     [device.cur_tx]

        ; todo: check if descriptor is not owned by the device!

        mov     eax, [esp + 4]

        mov     [esi + mtd_desc.skbuff], eax

        GetRealAddr

        mov     [esi + mtd_desc.buffer], eax

        mov     eax, [esp + 8]

        shl     eax, PKTSShift               ; packet size

        or      eax, TXLD + TXFD + CRCEnable + PADEnable + TXIC + 1536 shl TBSShift ; buffer size

        mov     [esi + mtd_desc.control], eax

        mov     [esi + mtd_desc.status], TXOWN

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

; Update stats

        inc     [device.packets_tx]

        mov     eax, [esp+8]

        add     dword [device.bytes_tx], eax

        adc     dword [device.bytes_tx + 4], 0

; Point to transmit descriptor

        set_io  0

        set_io  TXLBA

        mov     eax, esi

        GetRealAddr

        out     dx, eax

;        set_io  TCRRCR

;        mov     eax, [device.crvalue]

;        out     dx, eax

; Wake the potentially-idle transmit channel.

        set_io  TXPDR           ; TX Poll

        xor     eax, eax

        out     dx, eax

        DEBUGF  1,"transmit ok\n"

        xor     eax, eax

        ret     8

  .fail:

        DEBUGF  1,"transmit failed\n"

        or      eax, -1

        stdcall KernelFree, [esp + 4]

        ret     8

align 4

read_mac: