mirror of
https://github.com/Stichting-MINIX-Research-Foundation/netbsd.git
synced 2025-09-11 08:07:30 -04:00
285 lines
11 KiB
C
285 lines
11 KiB
C
/* $NetBSD: bus_defs.h,v 1.1 2014/02/24 07:23:43 skrll Exp $ */
|
|
|
|
/* $OpenBSD: bus.h,v 1.13 2001/07/30 14:15:59 art Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 1998-2004 Michael Shalayeff
|
|
* 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.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR OR HIS RELATIVES 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 MIND, 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 _MACHINE_BUS_DEFS_H_
|
|
#define _MACHINE_BUS_DEFS_H_
|
|
|
|
#include <machine/cpufunc.h>
|
|
|
|
/*
|
|
* Bus address and size types.
|
|
*/
|
|
typedef u_long bus_addr_t;
|
|
typedef u_long bus_size_t;
|
|
typedef u_long bus_space_handle_t;
|
|
|
|
struct hppa_bus_space_tag {
|
|
void *hbt_cookie;
|
|
|
|
int (*hbt_map)(void *v, bus_addr_t addr, bus_size_t size,
|
|
int flags, bus_space_handle_t *bshp);
|
|
void (*hbt_unmap)(void *v, bus_space_handle_t bsh,
|
|
bus_size_t size);
|
|
int (*hbt_subregion)(void *v, bus_space_handle_t bsh,
|
|
bus_size_t offset, bus_size_t size,
|
|
bus_space_handle_t *nbshp);
|
|
int (*hbt_alloc)(void *v, bus_addr_t rstart, bus_addr_t rend,
|
|
bus_size_t size, bus_size_t align,
|
|
bus_size_t boundary, int flags,
|
|
bus_addr_t *addrp, bus_space_handle_t *bshp);
|
|
void (*hbt_free)(void *, bus_space_handle_t, bus_size_t);
|
|
void (*hbt_barrier)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, bus_size_t l, int op);
|
|
void *(*hbt_vaddr)(void *, bus_space_handle_t);
|
|
paddr_t (*hbt_mmap)(void *, bus_addr_t, off_t, int, int);
|
|
|
|
uint8_t (*hbt_r1)(void *, bus_space_handle_t, bus_size_t);
|
|
uint16_t (*hbt_r2)(void *, bus_space_handle_t, bus_size_t);
|
|
uint32_t (*hbt_r4)(void *, bus_space_handle_t, bus_size_t);
|
|
uint64_t (*hbt_r8)(void *, bus_space_handle_t, bus_size_t);
|
|
|
|
void (*hbt_w1)(void *, bus_space_handle_t, bus_size_t, uint8_t);
|
|
void (*hbt_w2)(void *, bus_space_handle_t, bus_size_t, uint16_t);
|
|
void (*hbt_w4)(void *, bus_space_handle_t, bus_size_t, uint32_t);
|
|
void (*hbt_w8)(void *, bus_space_handle_t, bus_size_t, uint64_t);
|
|
|
|
void (*hbt_rm_1)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint8_t *a, bus_size_t c);
|
|
void (*hbt_rm_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t *a, bus_size_t c);
|
|
void (*hbt_rm_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t *a, bus_size_t c);
|
|
void (*hbt_rm_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_wm_1)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
const uint8_t *a, bus_size_t c);
|
|
void (*hbt_wm_2)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
const uint16_t *a, bus_size_t c);
|
|
void (*hbt_wm_4)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
const uint32_t *a, bus_size_t c);
|
|
void (*hbt_wm_8)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
const uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_sm_1)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
uint8_t vv, bus_size_t c);
|
|
void (*hbt_sm_2)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
uint16_t vv, bus_size_t c);
|
|
void (*hbt_sm_4)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
uint32_t vv, bus_size_t c);
|
|
void (*hbt_sm_8)(void *v, bus_space_handle_t h, bus_size_t o,
|
|
uint64_t vv, bus_size_t c);
|
|
|
|
void (*hbt_rrm_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t *a, bus_size_t c);
|
|
void (*hbt_rrm_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t *a, bus_size_t c);
|
|
void (*hbt_rrm_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_wrm_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint16_t *a, bus_size_t c);
|
|
void (*hbt_wrm_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint32_t *a, bus_size_t c);
|
|
void (*hbt_wrm_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_rr_1)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint8_t *a, bus_size_t c);
|
|
void (*hbt_rr_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t *a, bus_size_t c);
|
|
void (*hbt_rr_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t *a, bus_size_t c);
|
|
void (*hbt_rr_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_wr_1)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint8_t *a, bus_size_t c);
|
|
void (*hbt_wr_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint16_t *a, bus_size_t c);
|
|
void (*hbt_wr_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint32_t *a, bus_size_t c);
|
|
void (*hbt_wr_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_rrr_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t *a, bus_size_t c);
|
|
void (*hbt_rrr_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t *a, bus_size_t c);
|
|
void (*hbt_rrr_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_wrr_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint16_t *a, bus_size_t c);
|
|
void (*hbt_wrr_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint32_t *a, bus_size_t c);
|
|
void (*hbt_wrr_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, const uint64_t *a, bus_size_t c);
|
|
|
|
void (*hbt_sr_1)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint8_t vv, bus_size_t c);
|
|
void (*hbt_sr_2)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint16_t vv, bus_size_t c);
|
|
void (*hbt_sr_4)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint32_t vv, bus_size_t c);
|
|
void (*hbt_sr_8)(void *v, bus_space_handle_t h,
|
|
bus_size_t o, uint64_t vv, bus_size_t c);
|
|
|
|
void (*hbt_cp_1)(void *v, bus_space_handle_t h1, bus_size_t o1,
|
|
bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
|
|
void (*hbt_cp_2)(void *v, bus_space_handle_t h1, bus_size_t o1,
|
|
bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
|
|
void (*hbt_cp_4)(void *v, bus_space_handle_t h1, bus_size_t o1,
|
|
bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
|
|
void (*hbt_cp_8)(void *v, bus_space_handle_t h1, bus_size_t o1,
|
|
bus_space_handle_t h2, bus_size_t o2, bus_size_t c);
|
|
};
|
|
typedef const struct hppa_bus_space_tag *bus_space_tag_t;
|
|
|
|
/* flags for bus space map functions */
|
|
#define BUS_SPACE_MAP_READONLY 0x0008
|
|
#define BUS_SPACE_MAP_NOEXTENT 0x8000 /* no extent ops */
|
|
|
|
|
|
/* bus access routines */
|
|
#define BUS_SPACE_ALIGNED_POINTER(p, t) ALIGNED_POINTER(p, t)
|
|
|
|
/* XXX fredette */
|
|
#define __BUS_SPACE_HAS_STREAM_METHODS
|
|
|
|
#define BUS_DMA_WAITOK 0x000 /* safe to sleep (pseudo-flag) */
|
|
#define BUS_DMA_NOWAIT 0x001 /* not safe to sleep */
|
|
#define BUS_DMA_ALLOCNOW 0x002 /* perform resource allocation now */
|
|
#define BUS_DMA_COHERENT 0x004 /* hint: map memory DMA coherent */
|
|
#define BUS_DMA_STREAMING 0x008 /* hint: sequential, unidirectional */
|
|
#define BUS_DMA_BUS1 0x010 /* placeholders for bus functions... */
|
|
#define BUS_DMA_BUS2 0x020
|
|
#define BUS_DMA_BUS3 0x040
|
|
#define BUS_DMA_BUS4 0x080
|
|
#define BUS_DMA_READ 0x100 /* mapping is device -> memory only */
|
|
#define BUS_DMA_WRITE 0x200 /* mapping is memory -> device only */
|
|
#define BUS_DMA_NOCACHE 0x400 /* hint: map non-cached memory */
|
|
|
|
/* For devices that have a 24-bit address space */
|
|
#define BUS_DMA_24BIT BUS_DMA_BUS1
|
|
|
|
/* Forwards needed by prototypes below. */
|
|
struct mbuf;
|
|
struct proc;
|
|
struct uio;
|
|
|
|
typedef const struct hppa_bus_dma_tag *bus_dma_tag_t;
|
|
typedef struct hppa_bus_dmamap *bus_dmamap_t;
|
|
|
|
#define BUS_DMA_TAG_VALID(t) ((t) != (bus_dma_tag_t)0)
|
|
|
|
/*
|
|
* bus_dma_segment_t
|
|
*
|
|
* Describes a single contiguous DMA transaction. Values
|
|
* are suitable for programming into DMA registers.
|
|
*/
|
|
struct hppa_bus_dma_segment {
|
|
bus_addr_t ds_addr; /* DMA address */
|
|
bus_size_t ds_len; /* length of transfer */
|
|
void *_ds_mlist; /* page list when dmamem_alloc'ed */
|
|
vaddr_t _ds_va; /* VA when dmamem_map'ed */
|
|
};
|
|
typedef struct hppa_bus_dma_segment bus_dma_segment_t;
|
|
|
|
/*
|
|
* bus_dma_tag_t
|
|
*
|
|
* A machine-dependent opaque type describing the implementation of
|
|
* DMA for a given bus.
|
|
*/
|
|
|
|
struct hppa_bus_dma_tag {
|
|
void *_cookie; /* cookie used in the guts */
|
|
|
|
/*
|
|
* DMA mapping methods.
|
|
*/
|
|
int (*_dmamap_create)(void *, bus_size_t, int,
|
|
bus_size_t, bus_size_t, int, bus_dmamap_t *);
|
|
void (*_dmamap_destroy)(void *, bus_dmamap_t);
|
|
int (*_dmamap_load)(void *, bus_dmamap_t, void *,
|
|
bus_size_t, struct proc *, int);
|
|
int (*_dmamap_load_mbuf)(void *, bus_dmamap_t,
|
|
struct mbuf *, int);
|
|
int (*_dmamap_load_uio)(void *, bus_dmamap_t,
|
|
struct uio *, int);
|
|
int (*_dmamap_load_raw)(void *, bus_dmamap_t,
|
|
bus_dma_segment_t *, int, bus_size_t, int);
|
|
void (*_dmamap_unload)(void *, bus_dmamap_t);
|
|
void (*_dmamap_sync)(void *, bus_dmamap_t, bus_addr_t, bus_size_t, int);
|
|
|
|
/*
|
|
* DMA memory utility functions.
|
|
*/
|
|
int (*_dmamem_alloc)(void *, bus_size_t, bus_size_t,
|
|
bus_size_t, bus_dma_segment_t *, int, int *, int);
|
|
void (*_dmamem_free)(void *, bus_dma_segment_t *, int);
|
|
int (*_dmamem_map)(void *, bus_dma_segment_t *,
|
|
int, size_t, void **, int);
|
|
void (*_dmamem_unmap)(void *, void *, size_t);
|
|
paddr_t (*_dmamem_mmap)(void *, bus_dma_segment_t *,
|
|
int, off_t, int, int);
|
|
};
|
|
|
|
/*
|
|
* bus_dmamap_t
|
|
*
|
|
* Describes a DMA mapping.
|
|
*/
|
|
struct hppa_bus_dmamap {
|
|
/*
|
|
* PRIVATE MEMBERS: not for use by machine-independent code.
|
|
*/
|
|
bus_size_t _dm_size; /* largest DMA transfer mappable */
|
|
int _dm_segcnt; /* number of segs this map can map */
|
|
bus_size_t _dm_maxsegsz; /* fixed largest possible segment */
|
|
bus_size_t _dm_boundary; /* don't cross this */
|
|
int _dm_flags; /* misc. flags */
|
|
|
|
void *_dm_cookie; /* cookie for bus-specific functions */
|
|
|
|
/*
|
|
* PUBLIC MEMBERS: these are used by machine-independent code.
|
|
*/
|
|
bus_size_t dm_maxsegsz; /* largest possible segment */
|
|
bus_size_t dm_mapsize; /* size of the mapping */
|
|
int dm_nsegs; /* # valid segments in mapping */
|
|
bus_dma_segment_t dm_segs[1]; /* segments; variable length */
|
|
};
|
|
|
|
#endif /* _MACHINE_BUS_DEFS_H_ */
|