NetBSD/sys/arch/sh3/include/shbvar.h

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/* $NetBSD: shbvar.h,v 1.1 1999/09/13 10:31:22 itojun Exp $ */
/*-
* Copyright (c) 1997 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
* NASA Ames Research Center.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by the NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
/*
* Copyright (c) 1995 Chris G. Demetriou
* Copyright (c) 1992 Berkeley Software Design, Inc.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* This product includes software developed by Berkeley Software
* Design, Inc.
* 4. The name of Berkeley Software Design must not be used to endorse
* or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY BERKELEY SOFTWARE DESIGN, INC. ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL BERKELEY SOFTWARE DESIGN, INC. BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* BSDI Id: isavar.h,v 1.5 1992/12/01 18:06:00 karels Exp
*/
#ifndef _DEV_SHB_SHBVAR_H_
#define _DEV_SHB_SHBVAR_H_
/*
* Definitions for SHB autoconfiguration.
*/
#include <sys/queue.h>
#include <machine/bus.h>
/*
* Structures and definitions needed by the machine-dependent header.
*/
struct shbus_attach_args;
/* #include <i386/isa/isa_machdep.h> */
/*
* SH bus attach arguments
*/
struct shbus_attach_args {
char *iba_busname; /* XXX should be common */
bus_space_tag_t iba_iot; /* isa i/o space tag */
bus_space_tag_t iba_memt; /* isa mem space tag */
};
/*
* SHB driver attach arguments
*/
struct shb_attach_args {
bus_space_tag_t ia_iot; /* isa i/o space tag */
bus_space_tag_t ia_memt; /* isa mem space tag */
int ia_iobase; /* base i/o address */
int ia_iosize; /* span of ports used */
int ia_irq; /* interrupt request */
int ia_drq; /* DMA request */
int ia_drq2; /* second DMA request */
int ia_maddr; /* physical i/o mem addr */
u_int ia_msize; /* size of i/o memory */
void *ia_aux; /* driver specific */
};
#include "locators.h"
#define IOBASEUNK SHBCF_PORT_DEFAULT /* i/o address is unknown */
#define IRQUNK SHBCF_IRQ_DEFAULT /* interrupt request line is unknown */
#define DRQUNK SHBCF_DRQ_DEFAULT /* DMA request line is unknown */
#define MADDRUNK SHBCF_IOMEM_DEFAULT /* shared memory address is unknown */
/*
* Per-device SHB variables
*/
struct shbdev {
struct device *id_dev; /* back pointer to generic */
TAILQ_ENTRY(shbdev)
id_bchain; /* bus chain */
};
/*
* SHB master bus
*/
struct shb_softc {
struct device sc_dev; /* base device */
TAILQ_HEAD(, shbdev)
sc_subdevs; /* list of all children */
bus_space_tag_t sc_iot; /* isa io space tag */
bus_space_tag_t sc_memt; /* isa mem space tag */
};
#define cf_iobase cf_loc[SHBCF_PORT]
#define cf_iosize cf_loc[SHBCF_SIZE]
#define cf_maddr cf_loc[SHBCF_IOMEM]
#define cf_msize cf_loc[SHBCF_IOSIZ]
#define cf_irq cf_loc[SHBCF_IRQ]
#define cf_drq cf_loc[SHBCF_DRQ]
#define cf_drq2 cf_loc[SHBCF_DRQ2]
/*
* ISA interrupt handler manipulation.
*
* To establish an ISA interrupt handler, a driver calls isa_intr_establish()
* with the interrupt number, type, level, function, and function argument of
* the interrupt it wants to handle. Isa_intr_establish() returns an opaque
* handle to an event descriptor if it succeeds, and invokes panic() if it
* fails. (XXX It should return NULL, then drivers should handle that, but
* what should they do?) Interrupt handlers should return 0 for "interrupt
* not for me", 1 for "I took care of it", or -1 for "I guess it was mine,
* but I wasn't expecting it."
*
* To remove an interrupt handler, the driver calls isa_intr_disestablish()
* with the handle returned by isa_intr_establish() for that handler.
*/
/* SHB interrupt sharing types */
char *shb_intr_typename __P((int type));
#define ICU_LEN 32
#define SHB_MAX_HARDINTR 16
/*
* Interrupt handler chains. isa_intr_establish() inserts a handler into
* the list. The handler is called with its (single) argument.
*/
struct intrhand {
int (*ih_fun) __P((void *));
void *ih_arg;
u_long ih_count;
struct intrhand *ih_next;
int ih_level;
int ih_irq;
};
void *shb_intr_establish __P((int irq, int type,
int level, int (*ih_fun)(void *), void *ih_arg));
void shb_intr_disestablish __P((void *, void *));
int sh_intr_alloc __P((int mask, int type, int *irq));
#endif /* !_DEV_SHB_SHBVAR_H_ */