799112abbe
Implement new ISA interface functions: * isa_intr_alloc() - allocate an ISA IRQ * isa_mem_alloc() - allocate ISA memory space * isa_mem_free() - free ISA memory space
237 lines
8.2 KiB
C
237 lines
8.2 KiB
C
/* $NetBSD: isa_machdep.h,v 1.8 1997/10/14 20:34:40 thorpej Exp $ */
|
|
|
|
/*-
|
|
* Copyright (c) 1996, 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) 1990 The Regents of the University of California.
|
|
* All rights reserved.
|
|
*
|
|
* This code is derived from software contributed to Berkeley by
|
|
* William Jolitz.
|
|
*
|
|
* 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 University of
|
|
* California, Berkeley and its contributors.
|
|
* 4. Neither the name of the University 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 REGENTS 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 REGENTS 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.
|
|
*
|
|
* @(#)isa.h 5.7 (Berkeley) 5/9/91
|
|
*/
|
|
|
|
/*
|
|
* Various pieces of the i386 port want to include this file without
|
|
* or in spite of using isavar.h, and should be fixed.
|
|
*/
|
|
|
|
#ifndef _I386_ISA_MACHDEP_H_ /* XXX */
|
|
#define _I386_ISA_MACHDEP_H_ /* XXX */
|
|
|
|
#include <machine/bus.h>
|
|
|
|
/*
|
|
* XXX THIS FILE IS A MESS. copyright: berkeley's probably.
|
|
* contents from isavar.h and isareg.h, mostly the latter.
|
|
* perhaps charles's?
|
|
*
|
|
* copyright from berkeley's isa.h which is now dev/isa/isareg.h.
|
|
*/
|
|
|
|
/*
|
|
* Types provided to machine-independent ISA code.
|
|
*/
|
|
typedef void *isa_chipset_tag_t;
|
|
|
|
struct device; /* XXX */
|
|
struct isabus_attach_args; /* XXX */
|
|
|
|
/*
|
|
* Functions provided to machine-independent ISA code.
|
|
*/
|
|
void isa_attach_hook __P((struct device *, struct device *,
|
|
struct isabus_attach_args *));
|
|
int isa_intr_alloc __P((isa_chipset_tag_t, int, int, int *));
|
|
void *isa_intr_establish __P((isa_chipset_tag_t ic, int irq, int type,
|
|
int level, int (*ih_fun)(void *), void *ih_arg));
|
|
void isa_intr_disestablish __P((isa_chipset_tag_t ic, void *handler));
|
|
int isa_mem_alloc __P((bus_space_tag_t, bus_size_t, bus_size_t,
|
|
bus_addr_t, int, bus_addr_t *, bus_space_handle_t *));
|
|
void isa_mem_free __P((bus_space_tag_t, bus_space_handle_t, bus_size_t));
|
|
|
|
/*
|
|
* ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
|
|
* BY PORTABLE CODE.
|
|
*/
|
|
|
|
extern struct i386_bus_dma_tag isa_bus_dma_tag;
|
|
|
|
/*
|
|
* Cookie used by ISA dma. A pointer to one of these it stashed in
|
|
* the DMA map.
|
|
*/
|
|
struct i386_isa_dma_cookie {
|
|
int id_flags; /* flags; see below */
|
|
|
|
void *id_origbuf; /* pointer to orig buffer if
|
|
bouncing */
|
|
bus_size_t id_origbuflen; /* ...and size */
|
|
|
|
void *id_bouncebuf; /* pointer to the bounce buffer */
|
|
bus_size_t id_bouncebuflen; /* ...and size */
|
|
int id_nbouncesegs; /* number of valid bounce segs */
|
|
bus_dma_segment_t id_bouncesegs[0]; /* array of bounce buffer
|
|
physical memory segments */
|
|
};
|
|
|
|
/* id_flags */
|
|
#define ID_MIGHT_NEED_BOUNCE 0x01 /* map could need bounce buffers */
|
|
#define ID_HAS_BOUNCE 0x02 /* map currently has bounce buffers */
|
|
#define ID_IS_BOUNCING 0x04 /* map is bouncing current xfer */
|
|
|
|
/*
|
|
* XXX Various seemingly PC-specific constants, some of which may be
|
|
* unnecessary anyway.
|
|
*/
|
|
|
|
/*
|
|
* RAM Physical Address Space (ignoring the above mentioned "hole")
|
|
*/
|
|
#define RAM_BEGIN 0x0000000 /* Start of RAM Memory */
|
|
#define RAM_END 0x1000000 /* End of RAM Memory */
|
|
#define RAM_SIZE (RAM_END - RAM_BEGIN)
|
|
|
|
/*
|
|
* Oddball Physical Memory Addresses
|
|
*/
|
|
#define COMPAQ_RAMRELOC 0x80c00000 /* Compaq RAM relocation/diag */
|
|
#define COMPAQ_RAMSETUP 0x80c00002 /* Compaq RAM setup */
|
|
#define WEITEK_FPU 0xC0000000 /* WTL 2167 */
|
|
#define CYRIX_EMC 0xC0000000 /* Cyrix EMC */
|
|
|
|
/*
|
|
* stuff that used to be in pccons.c
|
|
*/
|
|
#define MONO_BASE 0x3B4
|
|
#define MONO_BUF 0xB0000
|
|
#define CGA_BASE 0x3D4
|
|
#define CGA_BUF 0xB8000
|
|
#define IOPHYSMEM 0xA0000
|
|
|
|
|
|
/*
|
|
* 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;
|
|
};
|
|
|
|
|
|
/*
|
|
* ISA DMA bounce buffers.
|
|
* XXX should be made partially machine- and bus-mapping-independent.
|
|
*
|
|
* DMA_BOUNCE is the number of pages of low-addressed physical memory
|
|
* to acquire for ISA bounce buffers.
|
|
*
|
|
* isaphysmem is the location of those bounce buffers. (They are currently
|
|
* assumed to be contiguous.
|
|
*/
|
|
|
|
#ifndef DMA_BOUNCE
|
|
#define DMA_BOUNCE 8 /* one buffer per channel */
|
|
#endif
|
|
|
|
extern vm_offset_t isaphysmem;
|
|
|
|
|
|
/*
|
|
* Variables and macros to deal with the ISA I/O hole.
|
|
* XXX These should be converted to machine- and bus-mapping-independent
|
|
* function definitions, invoked through the softc.
|
|
*/
|
|
|
|
extern u_long atdevbase; /* kernel virtual address of "hole" */
|
|
|
|
/*
|
|
* Given a kernel virtual address for some location
|
|
* in the "hole" I/O space, return a physical address.
|
|
*/
|
|
#define ISA_PHYSADDR(v) ((void *) ((u_long)(v) - atdevbase + IOM_BEGIN))
|
|
|
|
/*
|
|
* Given a physical address in the "hole",
|
|
* return a kernel virtual address.
|
|
*/
|
|
#define ISA_HOLE_VADDR(p) ((void *) ((u_long)(p) - IOM_BEGIN + atdevbase))
|
|
|
|
|
|
/*
|
|
* Miscellanous functions.
|
|
*/
|
|
void sysbeep __P((int, int)); /* beep with the system speaker */
|
|
|
|
#endif /* _I386_ISA_MACHDEP_H_ XXX */
|