NetBSD-5.0.2/sys/arch/arm/include/isa_machdep.h
/* $NetBSD: isa_machdep.h,v 1.5 2008/04/28 20:23:14 martin Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998 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.
*
* 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.
*/
#ifndef _ARM32_ISA_MACHDEP_H_
#define _ARM32_ISA_MACHDEP_H_
#include <machine/bus.h>
#include <dev/isa/isadmavar.h>
/*
* Types provided to machine-independent ISA code.
*/
struct arm32_isa_chipset {
struct isa_dma_state ic_dmastate;
};
typedef struct arm32_isa_chipset *isa_chipset_tag_t;
struct device; /* XXX */
struct isabus_attach_args; /* XXX */
/*
* Functions provided to machine-independent ISA code.
*/
void isa_attach_hook(struct device *, struct device *,
struct isabus_attach_args *);
const struct evcnt *isa_intr_evcnt(isa_chipset_tag_t ic, int irq);
void *isa_intr_establish(isa_chipset_tag_t ic, int irq, int type,
int level, int (*ih_fun)(void *), void *ih_arg);
void isa_intr_disestablish(isa_chipset_tag_t ic, void *handler);
#define isa_dmainit(ic, bst, dmat, d) \
_isa_dmainit(&(ic)->ic_dmastate, (bst), (dmat), (d))
#define isa_dmacascade(ic, c) \
_isa_dmacascade(&(ic)->ic_dmastate, (c))
#define isa_dmamaxsize(ic, c) \
_isa_dmamaxsize(&(ic)->ic_dmastate, (c))
#define isa_dmamap_create(ic, c, s, f) \
_isa_dmamap_create(&(ic)->ic_dmastate, (c), (s), (f))
#define isa_dmamap_destroy(ic, c) \
_isa_dmamap_destroy(&(ic)->ic_dmastate, (c))
#define isa_dmastart(ic, c, a, n, p, f, bf) \
_isa_dmastart(&(ic)->ic_dmastate, (c), (a), (n), (p), (f), (bf))
#define isa_dmaabort(ic, c) \
_isa_dmaabort(&(ic)->ic_dmastate, (c))
#define isa_dmacount(ic, c) \
_isa_dmacount(&(ic)->ic_dmastate, (c))
#define isa_dmafinished(ic, c) \
_isa_dmafinished(&(ic)->ic_dmastate, (c))
#define isa_dmadone(ic, c) \
_isa_dmadone(&(ic)->ic_dmastate, (c))
#define isa_dmafreeze(ic) \
_isa_dmafreeze(&(ic)->ic_dmastate)
#define isa_dmathaw(ic) \
_isa_dmathaw(&(ic)->ic_dmastate)
#define isa_dmamem_alloc(ic, c, s, ap, f) \
_isa_dmamem_alloc(&(ic)->ic_dmastate, (c), (s), (ap), (f))
#define isa_dmamem_free(ic, c, a, s) \
_isa_dmamem_free(&(ic)->ic_dmastate, (c), (a), (s))
#define isa_dmamem_map(ic, c, a, s, kp, f) \
_isa_dmamem_map(&(ic)->ic_dmastate, (c), (a), (s), (kp), (f))
#define isa_dmamem_unmap(ic, c, k, s) \
_isa_dmamem_unmap(&(ic)->ic_dmastate, (c), (k), (s))
#define isa_dmamem_mmap(ic, c, a, s, o, p, f) \
_isa_dmamem_mmap(&(ic)->ic_dmastate, (c), (a), (s), (o), (p), (f))
#define isa_drq_alloc(ic, c) \
_isa_drq_alloc(&(ic)->ic_dmastate, c)
#define isa_drq_free(ic, c) \
_isa_drq_free(&(ic)->ic_dmastate, c)
#define isa_drq_isfree(ic, c) \
_isa_drq_isfree(&(ic)->ic_dmastate, (c))
#define isa_malloc(ic, c, s, p, f) \
_isa_malloc(&(ic)->ic_dmastate, (c), (s), (p), (f))
#define isa_free(a, p) \
_isa_free((a), (p))
#define isa_mappage(m, o, p) \
_isa_mappage((m), (o), (p))
/*
* ALL OF THE FOLLOWING ARE MACHINE-DEPENDENT, AND SHOULD NOT BE USED
* BY PORTABLE CODE.
*/
extern struct arm32_bus_dma_tag isa_bus_dma_tag;
/*
* Cookie used by ISA DMA. A pointer to one of these is stashed in
* the DMA map.
*/
struct arm32_isa_dma_cookie {
int id_flags; /* flags; see below */
/*
* Information about the original buffer used during
* DMA map syncs. Note that origbuflen is only used
* for ID_BUFTYPE_LINEAR.
*/
void *id_origbuf; /* pointer to orig buffer if
bouncing */
bus_size_t id_origbuflen; /* ...and size */
int id_buftype; /* type of buffer */
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 */
/* id_buftype */
#define ID_BUFTYPE_INVALID 0
#define ID_BUFTYPE_LINEAR 1
#define ID_BUFTYPE_MBUF 2
#define ID_BUFTYPE_UIO 3
#define ID_BUFTYPE_RAW 4
/* bus space tags */
extern struct bus_space isa_io_bs_tag;
extern struct bus_space isa_mem_bs_tag;
/* ISA chipset */
extern struct arm32_isa_chipset isa_chipset_tag;
/* for pccons.c */
#define MONO_BASE 0x3B4
#define MONO_BUF 0x000B0000
#define CGA_BASE 0x3D4
#define CGA_BUF 0x000B8000
#define VGA_BUF 0xA0000
#define VGA_BUF_LEN (0xBFFFF - 0xA0000)
void isa_init(vaddr_t, vaddr_t);
void isa_io_init(vaddr_t, vaddr_t);
void isa_dma_init(void);
vaddr_t isa_io_data_vaddr(void);
vaddr_t isa_mem_data_vaddr(void);
int isa_intr_alloc(isa_chipset_tag_t ic, int mask, int type, int *irq);
void isa_intr_init(void);
/*
* Miscellanous functions.
*/
void sysbeep(int, int); /* beep with the system speaker */
void isa_fillw(u_int val, void *addr, size_t len);
#endif /* _ARM32_ISA_MACHDEP_H_ XXX */