5171d409a5
This now provides slightly more functionality than the FreeBSD layer1-newbus interface. It was meant to be a simple change to one header and a few c files, but the change rippled all through various stuff. To prevent a change to the kernel<->userland interface right now the kernel is now lying about card types to userland (but who cares). This will be fixed when the userland interface changes, after layer 3 <-> layer 4 has been fixed. Functional changes: Provide a clean interface for hardware drivers to attach to the upper layers. This will need another small change in the B-channel handling when a similar change to the layer 3 <-> layer 4 interface happens. Avoid passing indices into global arrays of pointers around, instead pass the pointers itself. Don't code hardware driver types by predefined magic numbers (think LKM). Prepare for detachable drivers (think pcmcia). While there remove some sets of function pointers always pointing to the same function (meant to be the configurable set of D channel protocol handlers). It is unlikely another supported D-channel protocol will fit into that (maximal layer interface) abstraction. When we get support for another protocol, we will need to come up with a workable interface. Besides, the old implementation was, uhm, strange.
93 lines
3.7 KiB
C
93 lines
3.7 KiB
C
/*
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* Copyright (c) 1997, 2000 Hellmuth Michaelis. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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*---------------------------------------------------------------------------
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*
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* i4b_trace.h - header file for trace data read device
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* ----------------------------------------------------
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*
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* $Id: i4b_trace.h,v 1.2 2001/03/24 12:40:33 martin Exp $
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*
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* $FreeBSD$
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*
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* last edit-date: [Wed Mar 8 16:41:43 2000]
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*
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*---------------------------------------------------------------------------*/
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#ifndef _I4B_TRACE_H_
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#define _I4B_TRACE_H_
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/*---------------------------------------------------------------------------*
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* structure of the header at the beginning of every trace mbuf
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*---------------------------------------------------------------------------*/
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typedef struct i4b_trace_hdr {
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int length; /* length of the following mbuf */
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int bri; /* controllers current bri number */
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int type; /* type of channel */
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#define TRC_CH_I 0 /* Layer 1 INFO's */
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#define TRC_CH_D 1 /* D channel */
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#define TRC_CH_B1 2 /* B1 channel */
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#define TRC_CH_B2 3 /* B2 channel */
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int dir; /* direction */
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#define FROM_TE 0 /* user -> network */
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#define FROM_NT 1 /* network -> user */
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int trunc; /* # of truncated bytes (frame > MCLBYTES) */
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unsigned int count; /* frame count for this unit/type */
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struct timeval time; /* timestamp for this frame */
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} i4b_trace_hdr;
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#define INFO0 0 /* layer 1 */
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#define INFO1_8 1
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#define INFO1_10 2
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#define INFO2 3
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#define INFO3 4
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#define INFO4_8 5
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#define INFO4_10 6
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/*---------------------------------------------------------------------------*
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* ioctl via /dev/i4btrc device(s):
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* get/set current trace flag settings
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*---------------------------------------------------------------------------*/
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#define I4B_TRC_SET _IOW('T', 0, int) /* set trace settings */
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#define TRACE_OFF 0x00 /* tracing off */
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#define TRACE_I 0x01 /* trace L1 INFO's on */
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#define TRACE_D_TX 0x02 /* trace D channel on */
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#define TRACE_D_RX 0x04 /* trace D channel on */
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#define TRACE_B_TX 0x08 /* trace B channel on */
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#define TRACE_B_RX 0x10 /* trace B channel on */
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typedef struct {
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int rxunit; /* unit # for rx frames */
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int rxflags; /* d and/or b channel */
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int txunit; /* unit # for tx frames */
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int txflags; /* d and/or b channel */
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} i4b_trace_setupa_t;
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#define I4B_TRC_SETA _IOW('T', 1, i4b_trace_setupa_t) /* set analyze mode */
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#define I4B_TRC_RESETA _IOW('T', 2, int) /* reset analyze mode */
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#endif /* _I4B_TRACE_H_ */
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