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4522 hidnplayr 1 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                                 ;;
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;; Copyright (C) KolibriOS team 2004-2021. All rights reserved.    ;;
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;; Distributed under terms of the GNU General Public License       ;;
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;;                                                                 ;;
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;;          GNU GENERAL PUBLIC LICENSE                             ;;
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;;             Version 2, June 1991                                ;;
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;;                                                                 ;;
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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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; This macro will prepend driver name to all debug output through DEBUGF macro
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; The driver name is taken from my_service label
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if defined my_service
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        macro DEBUGF _level,_format, [args] {
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        common DEBUGF _level, "%s: " # _format, my_service, args
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        }
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end if
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include 'pci.inc'
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include 'mii.inc'
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; Kernel variables
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        PAGESIZE        = 4096
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; Network driver types
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        NET_TYPE_ETH    = 1
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        NET_TYPE_SLIP   = 2
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; Link state
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        ETH_LINK_DOWN           = 0             ; Link is down
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        ETH_LINK_UNKNOWN        = 1b            ; There could be an active link
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        ETH_LINK_FULL_DUPLEX    = 10b           ; full duplex flag
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        ETH_LINK_SPEED_10M      = 100b          ; 10 Mbit
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        ETH_LINK_SPEED_100M     = 1000b         ; 100 Mbit
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        ETH_LINK_SPEED_1G       = 1100b         ; Gigabit
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        ETH_LINK_SPEED_MASK     = 1100b
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4522 hidnplayr 46 
; Macro to easily set i/o addresses to access device.
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; In the beginning of a procedure (or ofter edx may have been destroyed),
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; always use set_io with offset 0 to reset the variables.
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        LAST_IO = 0
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macro   set_io  baseaddr, offset {
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        if      offset = 0
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        mov     edx, baseaddr
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        else if offset = LAST_IO
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        else
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        add     edx, offset - LAST_IO
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        end if
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        LAST_IO = offset
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}
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; Macro to allocate a contiguous buffer in memory
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; And initialise it to all zeros
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; This macro will destroy eax, ecx and edi !
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macro   allocate_and_clear dest, size, err {
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; We need to allocate at least 8 pages, if we want a contiguous area in ram
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        push    edx
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    if (size < 8*4096) & (size > 4096)
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        invoke  KernelAlloc, 8*4096
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    else
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        invoke  KernelAlloc, size
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    end if
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        pop     edx
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        test    eax, eax
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        jz      err
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        mov     dest, eax
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        mov     edi, eax                ; look at last part of code!
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; Release the unused pages (if any)
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    if (size < 8*4096) & (size > 4096)
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        add     eax, (size/4096+1)*4096
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        mov     ecx, 8-(size/4096+1)
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        push    edx
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        invoke  ReleasePages
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        pop     edx
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    end if
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; Clear the allocated buffer
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        mov     ecx, size/4             ; divide by 4 because of DWORD
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        xor     eax, eax
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        rep     stosd
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     if (size - size/4*4)
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        mov     ecx, size - size/4*4
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        rep     stosb
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     end if
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}
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struct  NET_DEVICE
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        type            dd ?    ; Type field
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        mtu             dd ?    ; Maximal Transmission Unit
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        name            dd ?    ; Ptr to 0 terminated string
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        unload          dd ?    ; Ptrs to driver functions
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        reset           dd ?    ;
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        transmit        dd ?    ;
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        state           dd ?    ; link state (0 = no link)
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        hwacc           dd ?    ; bitmask stating enabled HW accelerations (offload engines)
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4522 hidnplayr 120 
        bytes_tx        dq ?    ; Statistics, updated by the driver
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        bytes_rx        dq ?    ;
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        packets_tx      dd ?    ;
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        packets_tx_err  dd ?    ; CRC errors, too long or too short frames
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        packets_tx_drop dd ?    ;
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        packets_tx_ovr  dd ?    ; FIFO overrun
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        packets_rx      dd ?    ;
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        packets_rx_err  dd ?    ; CRC errors, too long or too short frames
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        packets_rx_drop dd ?    ;
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        packets_rx_ovr  dd ?    ; FIFO overrun
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ends
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5522 hidnplayr 136 
struct  NET_BUFF
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        NextPtr         dd ?    ; pointer to next frame in list
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        PrevPtr         dd ?    ; pointer to previous frame in list
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        device          dd ?    ; ptr to NET_DEVICE structure
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        type            dd ?    ; data type (e.g. Ethernet)
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        length          dd ?    ; data length
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        offset          dd ?    ; offset to actual data (24 bytes for default frame)
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        data            rb 0
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ends
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struct  ETH_DEVICE      NET_DEVICE
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        mac             dp ?
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                        dw ?    ; qword alignment
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ends