67 lines
1.5 KiB
C
67 lines
1.5 KiB
C
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/*++
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Copyright (c) 1990 Microsoft Corporation
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Module Name:
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async.c
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Abstract:
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The main program for a ASYNC (Local Area Network Controller
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Am 7990) MAC driver.
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Author:
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Anthony V. Ercolano (tonye) creation-date 19-Jun-1990
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Environment:
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This driver is expected to work in DOS, OS2 and NT at the equivalent
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of kernal mode.
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Architecturally, there is an assumption in this driver that we are
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on a little endian machine.
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Notes:
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optional-notes
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Revision History:
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--*/
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#ifndef _ASYNCHARDWARE_
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#define _ASYNCHARDWARE_
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//
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// All registers on the ASYNC are 16 bits.
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//
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//
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// Masks for the normal summary bits in the transmit descriptor.
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//
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#define ASYNC_TRANSMIT_END_OF_PACKET ((UCHAR)(0x01))
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#define ASYNC_TRANSMIT_START_OF_PACKET ((UCHAR)(0x02))
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#define ASYNC_TRANSMIT_DEFERRED ((UCHAR)(0x04))
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#define ASYNC_TRANSMIT_ONE_RETRY ((UCHAR)(0x08))
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#define ASYNC_TRANSMIT_MORE_THAN_ONE_RETRY ((UCHAR)(0x10))
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#define ASYNC_TRANSMIT_ANY_ERRORS ((UCHAR)(0x40))
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#define ASYNC_TRANSMIT_OWNED_BY_CHIP ((UCHAR)(0x80))
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//
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// Set of masks to recover particular errors that a transmit can encounter.
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//
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#define ASYNC_TRANSMIT_TDR ((USHORT)(0x03ff))
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#define ASYNC_TRANSMIT_RETRY ((USHORT)(0x0400))
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#define ASYNC_TRANSMIT_LOST_CARRIER ((USHORT)(0x0800))
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#define ASYNC_TRANSMIT_LATE_COLLISION ((USHORT)(0x0100))
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#define ASYNC_TRANSMIT_UNDERFLOW ((USHORT)(0x4000))
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#define ASYNC_TRANSMIT_BUFFER ((USHORT)(0x8000))
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#endif // _ASYNCHARDWARE_
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