157 lines
5.9 KiB
C
157 lines
5.9 KiB
C
/* $NetBSD: saio.h,v 1.3 1996/11/20 18:57:19 gwr Exp $ */
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/*-
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* Copyright (c) 1996 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Gordon W. Ross.
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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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*
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* This file derived from kernel/mach/sun3.md/machMon.h from the
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* sprite distribution.
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*
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* In particular, this file came out of the Walnut Creek cdrom collection
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* which contained no warnings about any possible copyright infringement.
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*/
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/*
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* machMon.h --
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*
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* Structures, constants and defines for access to the sun monitor.
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* These were translated from the sun monitor header files:
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* mon/sunromvec.h
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* stand/saio.h
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*
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* Copyright (C) 1985 Regents of the University of California
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* All rights reserved.
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*
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* Header: /sprite/src/boot/sunprom/sun3.md/RCS/machMon.h,v \
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* 1.1 90/09/17 10:57:28 rab Exp Locker: rab $ SPRITE (Berkeley)
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*/
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/*
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* The table entry that describes a device. It exists in the PROM; a
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* pointer to it is passed in MachMonBootParam. It can be used to locate
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* PROM subroutines for opening, reading, and writing the device.
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*
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* When using this interface, only one device can be open at once.
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*/
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typedef struct boottab {
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char b_dev[2]; /* The name of the device */
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int (*b_probe)(); /* probe() --> -1 or found controller
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number */
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int (*b_boot)(); /* boot(bp) --> -1 or start address */
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int (*b_open)(); /* open(iobp) --> -1 or 0 */
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int (*b_close)(); /* close(iobp) --> -1 or 0 */
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int (*b_strategy)(); /* strategy(iobp,rw) --> -1 or 0 */
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char *b_desc; /* Printable string describing dev */
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struct devinfo *b_devinfo; /* Information to configure device */
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} MachMonBootDevice;
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enum MAPTYPES { /* Page map entry types. */
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MAP_MAINMEM,
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MAP_OBIO,
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MAP_MBMEM,
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MAP_MBIO,
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MAP_VME16A16D,
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MAP_VME16A32D,
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MAP_VME24A16D,
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MAP_VME24A32D,
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MAP_VME32A16D,
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MAP_VME32A32D
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};
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/*
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* This table gives information about the resources needed by a device.
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*/
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typedef struct devinfo {
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unsigned int d_devbytes; /* Bytes occupied by device in IO space. */
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unsigned int d_dmabytes; /* Bytes needed by device in DMA memory. */
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unsigned int d_localbytes; /* Bytes needed by device for local info. */
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unsigned int d_stdcount; /* How many standard addresses. */
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unsigned long *d_stdaddrs; /* The vector of standard addresses. */
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enum MAPTYPES d_devtype; /* What map space device is in. */
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unsigned int d_maxiobytes; /* Size to break big I/O's into. */
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} MachMonDevInfo;
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/*
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* A "stand alone I/O request", (from SunOS saio.h)
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* This is passed as the main argument to the PROM I/O routines
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* in the MachMonBootDevice structure.
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*/
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typedef struct saioreq {
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char si_flgs;
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struct boottab *si_boottab; /* Points to boottab entry if any */
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char *si_devdata; /* Device-specific data pointer */
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int si_ctlr; /* Controller number or address */
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int si_unit; /* Unit number within controller */
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long si_boff; /* Partition number within unit */
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long si_cyloff;
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long si_offset;
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long si_bn; /* Block number to R/W */
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char *si_ma; /* Memory address to R/W */
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int si_cc; /* Character count to R/W */
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struct saif *si_sif; /* net if. pointer (set by b_open) */
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char *si_devaddr; /* Points to mapped in device */
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char *si_dmaaddr; /* Points to allocated DMA space */
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} MachMonIORequest;
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#define SAIO_F_READ 0x01
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#define SAIO_F_WRITE 0x02
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#define SAIO_F_ALLOC 0x04
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#define SAIO_F_FILE 0x08
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#define SAIO_F_EOF 0x10 /* EOF on device */
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#define SAIO_F_AJAR 0x20 /* Descriptor "ajar" (stopped but not closed) */
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/*
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* Ethernet interface descriptor (from SunOS saio.h)
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* First, set: saiop->si_devaddr, saiop->si_dmaaddr, etc.
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* Then: saiop->si_boottab->b_open() will set:
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* saiop->si_sif;
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* saiop->si_devdata;
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* The latter is the first arg to the following functions.
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* Note that the buffer must be in DVMA space...
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*/
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struct saif {
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/* transmit packet, returns zero on success. */
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int (*sif_xmit)(void *devdata, char *buf, int len);
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/* wait for packet, zero if none arrived */
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int (*sif_poll)(void *devdata, char *buf);
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/* reset interface, set addresses, etc. */
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int (*sif_reset)(void *devdata, struct saioreq *sip);
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/* Later (sun4 only) proms have more stuff here. */
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};
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