forked from KolibriOS/kolibrios
148 lines
3.4 KiB
PHP
148 lines
3.4 KiB
PHP
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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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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;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
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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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; 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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} |