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2886 hidnplayr 1 
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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;;                                                                 ;;
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;; Copyright (C) KolibriOS team 2004-2012. 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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
1472 hidnplayr 10 
 
2886 hidnplayr 11 
include 'bus/pci.inc'
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; Kernel variables
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        PAGESIZE        = 4096
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        PG_SW           = 0x003
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        PG_NOCACHE      = 0x018
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1514 hidnplayr 20 
; network driver types
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        NET_TYPE_ETH    = 1
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        NET_TYPE_SLIP   = 2
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        LAST_IO = 0
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macro   set_io addr {
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        if      addr = 0
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        mov     edx, [device.io_addr]
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        else if addr = LAST_IO
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        else
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        add     edx, addr - LAST_IO
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        end if
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        LAST_IO = addr
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}
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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 continuous memory in ram
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        push    edx
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    if (size < 8*4096) & (size > 4096)
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        stdcall KernelAlloc, 8*4096
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    else
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        stdcall 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               ; Save the address to it into the device struct
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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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        call    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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}
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struc   IOCTL {
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        .handle         dd ?
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        .io_code        dd ?
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        .input          dd ?
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        .inp_size       dd ?
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        .output         dd ?
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        .out_size       dd ?
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}
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virtual at edx
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  IOCTL IOCTL
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end virtual
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if used null_op
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align 4
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null_op:
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        or      eax, -1
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        ret
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end if
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macro   GetRealAddr {             ; input and output is eax
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        push    ax
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        call    GetPgAddr
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        and     word[esp], PAGESIZE - 1
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        or      ax, word[esp]
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        inc     esp
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        inc     esp
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}
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macro   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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        .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_rx     dd ?    ;
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        .end:
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}
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macro   ETH_DEVICE {
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        NET_DEVICE
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        .set_mode       dd ?
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        .get_mode       dd ?
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        .set_MAC        dd ?
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        .get_MAC        dd ?
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        .mode           dd ?
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        .mac            dp ?
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                        dp ?    ; qword alignment
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}
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macro   SLIP_DEVICE {
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        NET_DEVICE
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        .set_mode       dd ?
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        .get_mode       dd ?
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        .mode           dd ?
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}