File: [local] / sys / arch / landisk / include / bus.h (download)
Revision 1.1.1.1 (vendor branch), Tue Mar 4 16:08:56 2008 UTC (16 years, 5 months ago) by nbrk
Branch: OPENBSD_4_2_BASE, MAIN
CVS Tags: jornada-partial-support-wip, HEAD Changes since 1.1: +0 -0 lines
Import of OpenBSD 4.2 release kernel tree with initial code to support
Jornada 720/728, StrongARM 1110-based handheld PC.
At this point kernel roots on NFS and boots into vfs_mountroot() and traps.
What is supported:
- glass console, Jornada framebuffer (jfb) works in 16bpp direct color mode
(needs some palette tweaks for non black/white/blue colors, i think)
- saic, SA11x0 interrupt controller (needs cleanup)
- sacom, SA11x0 UART (supported only as boot console for now)
- SA11x0 GPIO controller fully supported (but can't handle multiple interrupt
handlers on one gpio pin)
- sassp, SSP port on SA11x0 that attaches spibus
- Jornada microcontroller (jmcu) to control kbd, battery, etc throught
the SPI bus (wskbd attaches on jmcu, but not tested)
- tod functions seem work
- initial code for SA-1111 (chip companion) : this is TODO
Next important steps, i think:
- gpio and intc on sa1111
- pcmcia support for sa11x0 (and sa1111 help logic)
- REAL root on nfs when we have PCMCIA support (we may use any of supported pccard NICs)
- root on wd0! (using already supported PCMCIA-ATA)
|
/* $OpenBSD: bus.h,v 1.4 2007/04/12 12:00:02 miod Exp $ */
/* $NetBSD: bus.h,v 1.1 2006/09/01 21:26:18 uwe 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) 1996 Charles M. Hannum. All rights reserved.
* Copyright (c) 1996 Christopher G. Demetriou. 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 Christopher G. Demetriou
* for the NetBSD Project.
* 4. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission
*
* 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 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 _LANDISK_BUS_H_
#define _LANDISK_BUS_H_
#include <sys/types.h>
typedef u_long bus_addr_t;
typedef u_long bus_size_t;
typedef struct _bus_space *bus_space_tag_t;
typedef u_long bus_space_handle_t;
struct _bus_space {
/* cookie */
void *bs_cookie;
/* mapping/unmapping */
int (*bs_map)(void *, bus_addr_t, bus_size_t,
int, bus_space_handle_t *);
void (*bs_unmap)(void *, bus_space_handle_t,
bus_size_t);
int (*bs_subregion)(void *, bus_space_handle_t,
bus_size_t, bus_size_t, bus_space_handle_t *);
/* allocation/deallocation */
int (*bs_alloc)(void *, bus_addr_t, bus_addr_t,
bus_size_t, bus_size_t, bus_size_t, int,
bus_addr_t *, bus_space_handle_t *);
void (*bs_free)(void *, bus_space_handle_t,
bus_size_t);
/* get kernel virtual address */
void * (*bs_vaddr)(void *, bus_space_handle_t);
/* read (single) */
uint8_t (*bs_r_1)(void *, bus_space_handle_t,
bus_size_t);
uint16_t (*bs_r_2)(void *, bus_space_handle_t,
bus_size_t);
uint32_t (*bs_r_4)(void *, bus_space_handle_t,
bus_size_t);
uint64_t (*bs_r_8)(void *, bus_space_handle_t,
bus_size_t);
/* read multiple */
void (*bs_rm_1)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void (*bs_rm_2)(void *, bus_space_handle_t,
bus_size_t, uint16_t *, bus_size_t);
void (*bs_rm_4)(void *, bus_space_handle_t,
bus_size_t, uint32_t *, bus_size_t);
void (*bs_rm_8)(void *, bus_space_handle_t,
bus_size_t, uint64_t *, bus_size_t);
void (*bs_rrm_2)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void (*bs_rrm_4)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void (*bs_rrm_8)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
/* read region */
void (*bs_rr_1)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void (*bs_rr_2)(void *, bus_space_handle_t,
bus_size_t, uint16_t *, bus_size_t);
void (*bs_rr_4)(void *, bus_space_handle_t,
bus_size_t, uint32_t *, bus_size_t);
void (*bs_rr_8)(void *, bus_space_handle_t,
bus_size_t, uint64_t *, bus_size_t);
void (*bs_rrr_2)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void (*bs_rrr_4)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
void (*bs_rrr_8)(void *, bus_space_handle_t,
bus_size_t, uint8_t *, bus_size_t);
/* write (single) */
void (*bs_w_1)(void *, bus_space_handle_t,
bus_size_t, uint8_t);
void (*bs_w_2)(void *, bus_space_handle_t,
bus_size_t, uint16_t);
void (*bs_w_4)(void *, bus_space_handle_t,
bus_size_t, uint32_t);
void (*bs_w_8)(void *, bus_space_handle_t,
bus_size_t, uint64_t);
/* write multiple */
void (*bs_wm_1)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void (*bs_wm_2)(void *, bus_space_handle_t,
bus_size_t, const uint16_t *, bus_size_t);
void (*bs_wm_4)(void *, bus_space_handle_t,
bus_size_t, const uint32_t *, bus_size_t);
void (*bs_wm_8)(void *, bus_space_handle_t,
bus_size_t, const uint64_t *, bus_size_t);
void (*bs_wrm_2)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void (*bs_wrm_4)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void (*bs_wrm_8)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
/* write region */
void (*bs_wr_1)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void (*bs_wr_2)(void *, bus_space_handle_t,
bus_size_t, const uint16_t *, bus_size_t);
void (*bs_wr_4)(void *, bus_space_handle_t,
bus_size_t, const uint32_t *, bus_size_t);
void (*bs_wr_8)(void *, bus_space_handle_t,
bus_size_t, const uint64_t *, bus_size_t);
void (*bs_wrr_2)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void (*bs_wrr_4)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
void (*bs_wrr_8)(void *, bus_space_handle_t,
bus_size_t, const uint8_t *, bus_size_t);
/* set multiple */
void (*bs_sm_1)(void *, bus_space_handle_t,
bus_size_t, uint8_t, bus_size_t);
void (*bs_sm_2)(void *, bus_space_handle_t,
bus_size_t, uint16_t, bus_size_t);
void (*bs_sm_4)(void *, bus_space_handle_t,
bus_size_t, uint32_t, bus_size_t);
void (*bs_sm_8)(void *, bus_space_handle_t,
bus_size_t, uint64_t, bus_size_t);
/* set region */
void (*bs_sr_1)(void *, bus_space_handle_t,
bus_size_t, uint8_t, bus_size_t);
void (*bs_sr_2)(void *, bus_space_handle_t,
bus_size_t, uint16_t, bus_size_t);
void (*bs_sr_4)(void *, bus_space_handle_t,
bus_size_t, uint32_t, bus_size_t);
void (*bs_sr_8)(void *, bus_space_handle_t,
bus_size_t, uint64_t, bus_size_t);
/* copy */
void (*bs_c_1)(void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t);
void (*bs_c_2)(void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t);
void (*bs_c_4)(void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t);
void (*bs_c_8)(void *, bus_space_handle_t, bus_size_t,
bus_space_handle_t, bus_size_t, bus_size_t);
};
#ifdef _KERNEL
/*
* Utility macros; INTERNAL USE ONLY.
*/
#define __bs_c(a,b) __CONCAT(a,b)
#define __bs_opname(op,size) __bs_c(__bs_c(__bs_c(bs_,op),_),size)
#define __bs_rs(sz, tn, t, h, o) \
(*(t)->__bs_opname(r,sz))((t)->bs_cookie, h, o)
#define __bs_ws(sz, tn, t, h, o, v) \
(*(t)->__bs_opname(w,sz))((t)->bs_cookie, h, o, v)
#define __bs_nonsingle(type, sz, tn, t, h, o, a, c) \
(*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, a, c)
#define __bs_set(type, sz, tn, t, h, o, v, c) \
(*(t)->__bs_opname(type,sz))((t)->bs_cookie, h, o, v, c)
#define __bs_copy(sz, tn, t, h1, o1, h2, o2, cnt) \
(*(t)->__bs_opname(c,sz))((t)->bs_cookie, h1, o1, h2, o2, cnt)
/*
* Mapping and unmapping operations.
*/
#define bus_space_map(t, a, s, f, hp) \
(*(t)->bs_map)((t)->bs_cookie, (a), (s), (f), (hp))
#define bus_space_unmap(t, h, s) \
(*(t)->bs_unmap)((t)->bs_cookie, (h), (s))
#define bus_space_subregion(t, h, o, s, hp) \
(*(t)->bs_subregion)((t)->bs_cookie, (h), (o), (s), (hp))
#endif /* _KERNEL */
#define BUS_SPACE_MAP_CACHEABLE 0x01
#define BUS_SPACE_MAP_LINEAR 0x02
#define BUS_SPACE_MAP_PREFETCHABLE 0x04
#ifdef _KERNEL
/*
* Allocation and deallocation operations.
*/
#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp) \
(*(t)->bs_alloc)((t)->bs_cookie, (rs), (re), (s), (a), (b), \
(f), (ap), (hp))
#define bus_space_free(t, h, s) \
(*(t)->bs_free)((t)->bs_cookie, (h), (s))
/*
* Get kernel virtual address for ranges mapped BUS_SPACE_MAP_LINEAR.
*/
#define bus_space_vaddr(t, h) \
(*(t)->bs_vaddr)((t)->bs_cookie, (h))
/*
* Bus barrier operations. The SH3 does not currently require
* barriers, but we must provide the flags to MI code.
*/
#define bus_space_barrier(t, h, o, l, f) \
((void)((void)(t), (void)(h), (void)(o), (void)(l), (void)(f)))
#define BUS_SPACE_BARRIER_READ 0x01
#define BUS_SPACE_BARRIER_WRITE 0x02
/*
* Bus read (single) operations.
*/
#define bus_space_read_1(t, h, o) __bs_rs(1,uint8_t,(t),(h),(o))
#define bus_space_read_2(t, h, o) __bs_rs(2,uint16_t,(t),(h),(o))
#define bus_space_read_4(t, h, o) __bs_rs(4,uint32_t,(t),(h),(o))
#define bus_space_read_8(t, h, o) __bs_rs(8,uint64_t,(t),(h),(o))
/*
* Bus read multiple operations.
*/
#define bus_space_read_multi_1(t, h, o, a, c) \
__bs_nonsingle(rm,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_read_multi_2(t, h, o, a, c) \
__bs_nonsingle(rm,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_read_multi_4(t, h, o, a, c) \
__bs_nonsingle(rm,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_read_multi_8(t, h, o, a, c) \
__bs_nonsingle(rm,8,uint64_t,(t),(h),(o),(a),(c))
#define bus_space_read_raw_multi_2(t, h, o, a, c) \
__bs_nonsingle(rrm,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_read_raw_multi_4(t, h, o, a, c) \
__bs_nonsingle(rrm,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_read_raw_multi_8(t, h, o, a, c) \
__bs_nonsingle(rrm,8,uint64_t,(t),(h),(o),(a),(c))
/*
* Bus read region operations.
*/
#define bus_space_read_region_1(t, h, o, a, c) \
__bs_nonsingle(rr,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_read_region_2(t, h, o, a, c) \
__bs_nonsingle(rr,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_read_region_4(t, h, o, a, c) \
__bs_nonsingle(rr,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_read_region_8(t, h, o, a, c) \
__bs_nonsingle(rr,8,uint64_t,(t),(h),(o),(a),(c))
#define bus_space_read_raw_region_2(t, h, o, a, c) \
__bs_nonsingle(rrr,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_read_raw_region_4(t, h, o, a, c) \
__bs_nonsingle(rrr,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_read_raw_region_8(t, h, o, a, c) \
__bs_nonsingle(rrr,8,uint64_t,(t),(h),(o),(a),(c))
/*
* Bus write (single) operations.
*/
#define bus_space_write_1(t, h, o, v) __bs_ws(1,uint8_t,(t),(h),(o),(v))
#define bus_space_write_2(t, h, o, v) __bs_ws(2,uint16_t,(t),(h),(o),(v))
#define bus_space_write_4(t, h, o, v) __bs_ws(4,uint32_t,(t),(h),(o),(v))
#define bus_space_write_8(t, h, o, v) __bs_ws(8,uint64_t,(t),(h),(o),(v))
/*
* Bus write multiple operations.
*/
#define bus_space_write_multi_1(t, h, o, a, c) \
__bs_nonsingle(wm,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_write_multi_2(t, h, o, a, c) \
__bs_nonsingle(wm,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_write_multi_4(t, h, o, a, c) \
__bs_nonsingle(wm,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_write_multi_8(t, h, o, a, c) \
__bs_nonsingle(wm,8,uint64_t,(t),(h),(o),(a),(c))
#define bus_space_write_raw_multi_2(t, h, o, a, c) \
__bs_nonsingle(wrm,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_write_raw_multi_4(t, h, o, a, c) \
__bs_nonsingle(wrm,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_write_raw_multi_8(t, h, o, a, c) \
__bs_nonsingle(wrm,8,uint64_t,(t),(h),(o),(a),(c))
/*
* Bus write region operations.
*/
#define bus_space_write_region_1(t, h, o, a, c) \
__bs_nonsingle(wr,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_write_region_2(t, h, o, a, c) \
__bs_nonsingle(wr,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_write_region_4(t, h, o, a, c) \
__bs_nonsingle(wr,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_write_region_8(t, h, o, a, c) \
__bs_nonsingle(wr,8,uint64_t,(t),(h),(o),(a),(c))
#define bus_space_write_raw_region_2(t, h, o, a, c) \
__bs_nonsingle(wrr,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_write_raw_region_4(t, h, o, a, c) \
__bs_nonsingle(wrr,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_write_raw_region_8(t, h, o, a, c) \
__bs_nonsingle(wrr,8,uint64_t,(t),(h),(o),(a),(c))
/*
* Set multiple operations.
*/
#define bus_space_set_multi_1(t, h, o, v, c) \
__bs_set(sm,1,uint8_t,(t),(h),(o),(v),(c))
#define bus_space_set_multi_2(t, h, o, v, c) \
__bs_set(sm,2,uint16_t,(t),(h),(o),(v),(c))
#define bus_space_set_multi_4(t, h, o, v, c) \
__bs_set(sm,4,uint32_t,(t),(h),(o),(v),(c))
#define bus_space_set_multi_8(t, h, o, v, c) \
__bs_set(sm,8,uint64_t,(t),(h),(o),(v),(c))
/*
* Set region operations.
*/
#define bus_space_set_region_1(t, h, o, v, c) \
__bs_set(sr,1,uint8_t,(t),(h),(o),(v),(c))
#define bus_space_set_region_2(t, h, o, v, c) \
__bs_set(sr,2,uint16_t,(t),(h),(o),(v),(c))
#define bus_space_set_region_4(t, h, o, v, c) \
__bs_set(sr,4,uint32_t,(t),(h),(o),(v),(c))
#define bus_space_set_region_8(t, h, o, v, c) \
__bs_set(sr,8,uint64_t,(t),(h),(o),(v),(c))
/*
* Copy region operations.
*/
#define bus_space_copy_region_1(t, h1, o1, h2, o2, c) \
__bs_copy(1, uint8_t, (t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_2(t, h1, o1, h2, o2, c) \
__bs_copy(2, uint16_t, (t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_4(t, h1, o1, h2, o2, c) \
__bs_copy(4, uint32_t, (t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_8(t, h1, o1, h2, o2, c) \
__bs_copy(8, uint64_t, (t), (h1), (o1), (h2), (o2), (c))
#endif /* _KERNEL */
/*
* Flags used in various bus DMA 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 /* map memory to not require sync */
#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 */
/* Forwards needed by prototypes below. */
struct mbuf;
struct uio;
/*
* Operations performed by bus_dmamap_sync().
*/
#define BUS_DMASYNC_PREREAD 0x01
#define BUS_DMASYNC_POSTREAD 0x02
#define BUS_DMASYNC_PREWRITE 0x04
#define BUS_DMASYNC_POSTWRITE 0x08
typedef struct _bus_dma_tag *bus_dma_tag_t;
typedef struct _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 _bus_dma_segment {
bus_addr_t ds_addr; /* DMA address */
bus_size_t ds_len; /* length of transfer */
/* private section */
bus_addr_t _ds_vaddr; /* virtual address */
};
typedef struct _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 _bus_dma_tag {
void *_cookie; /* cookie used in the guts */
/*
* DMA mapping methods.
*/
int (*_dmamap_create)(bus_dma_tag_t, bus_size_t, int,
bus_size_t, bus_size_t, int, bus_dmamap_t *);
void (*_dmamap_destroy)(bus_dma_tag_t, bus_dmamap_t);
int (*_dmamap_load)(bus_dma_tag_t, bus_dmamap_t, void *,
bus_size_t, struct proc *, int);
int (*_dmamap_load_mbuf)(bus_dma_tag_t, bus_dmamap_t,
struct mbuf *, int);
int (*_dmamap_load_uio)(bus_dma_tag_t, bus_dmamap_t,
struct uio *, int);
int (*_dmamap_load_raw)(bus_dma_tag_t, bus_dmamap_t,
bus_dma_segment_t *, int, bus_size_t, int);
void (*_dmamap_unload)(bus_dma_tag_t, bus_dmamap_t);
void (*_dmamap_sync)(bus_dma_tag_t, bus_dmamap_t,
bus_addr_t, bus_size_t, int);
/*
* DMA memory utility functions.
*/
int (*_dmamem_alloc)(bus_dma_tag_t, bus_size_t, bus_size_t,
bus_size_t, bus_dma_segment_t *, int, int *, int);
void (*_dmamem_free)(bus_dma_tag_t,
bus_dma_segment_t *, int);
int (*_dmamem_map)(bus_dma_tag_t, bus_dma_segment_t *,
int, size_t, caddr_t *, int);
void (*_dmamem_unmap)(bus_dma_tag_t, caddr_t, size_t);
paddr_t (*_dmamem_mmap)(bus_dma_tag_t, bus_dma_segment_t *,
int, off_t, int, int);
};
#define bus_dmamap_create(t, s, n, m, b, f, p) \
(*(t)->_dmamap_create)((t), (s), (n), (m), (b), (f), (p))
#define bus_dmamap_destroy(t, p) \
(*(t)->_dmamap_destroy)((t), (p))
#define bus_dmamap_load(t, m, b, s, p, f) \
(*(t)->_dmamap_load)((t), (m), (b), (s), (p), (f))
#define bus_dmamap_load_mbuf(t, m, b, f) \
(*(t)->_dmamap_load_mbuf)((t), (m), (b), (f))
#define bus_dmamap_load_uio(t, m, u, f) \
(*(t)->_dmamap_load_uio)((t), (m), (u), (f))
#define bus_dmamap_load_raw(t, m, sg, n, s, f) \
(*(t)->_dmamap_load_raw)((t), (m), (sg), (n), (s), (f))
#define bus_dmamap_unload(t, p) \
(*(t)->_dmamap_unload)((t), (p))
#define bus_dmamap_sync(t, m, o, l, op) \
(void)((t)->_dmamap_sync ? \
(*(t)->_dmamap_sync)((t), (m), (o), (l), (op)) : (void)0)
#define bus_dmamem_alloc(t, s, a, b, sg, n, r, f) \
(*(t)->_dmamem_alloc)((t), (s), (a), (b), (sg), (n), (r), (f))
#define bus_dmamem_free(t, sg, n) \
(*(t)->_dmamem_free)((t), (sg), (n))
#define bus_dmamem_map(t, sg, n, s, k, f) \
(*(t)->_dmamem_map)((t), (sg), (n), (s), (k), (f))
#define bus_dmamem_unmap(t, k, s) \
(*(t)->_dmamem_unmap)((t), (k), (s))
#define bus_dmamem_mmap(t, sg, n, o, p, f) \
(*(t)->_dmamem_mmap)((t), (sg), (n), (o), (p), (f))
/*
* bus_dmamap_t
*
* Describes a DMA mapping.
*/
struct _bus_dmamap {
/*
* PRIVATE MEMBERS: not for use my 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; /* 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_mapsize; /* size of the mapping */
int dm_nsegs; /* # valid segments in mapping */
bus_dma_segment_t dm_segs[1]; /* segments; variable length */
};
#if defined(_LANDISK_BUS_DMA_PRIVATE)
int _bus_dmamap_create(bus_dma_tag_t, bus_size_t, int, bus_size_t,
bus_size_t, int, bus_dmamap_t *);
void _bus_dmamap_destroy(bus_dma_tag_t, bus_dmamap_t);
int _bus_dmamap_load(bus_dma_tag_t, bus_dmamap_t, void *, bus_size_t,
struct proc *, int);
int _bus_dmamap_load_mbuf(bus_dma_tag_t, bus_dmamap_t, struct mbuf *,int);
int _bus_dmamap_load_uio(bus_dma_tag_t, bus_dmamap_t, struct uio *, int);
int _bus_dmamap_load_raw(bus_dma_tag_t, bus_dmamap_t, bus_dma_segment_t *,
int, bus_size_t, int);
void _bus_dmamap_unload(bus_dma_tag_t, bus_dmamap_t);
void _bus_dmamap_sync(bus_dma_tag_t, bus_dmamap_t, bus_addr_t,
bus_size_t, int);
int _bus_dmamem_alloc(bus_dma_tag_t tag, bus_size_t size,
bus_size_t alignment, bus_size_t boundary, bus_dma_segment_t *segs,
int nsegs, int *rsegs, int flags);
void _bus_dmamem_free(bus_dma_tag_t tag, bus_dma_segment_t *segs,
int nsegs);
int _bus_dmamem_map(bus_dma_tag_t tag, bus_dma_segment_t *segs, int nsegs,
size_t size, caddr_t *kvap, int flags);
void _bus_dmamem_unmap(bus_dma_tag_t tag, caddr_t kva, size_t size);
paddr_t _bus_dmamem_mmap(bus_dma_tag_t tag, bus_dma_segment_t *segs,
int nsegs, off_t off, int prot, int flags);
#endif /* _LANDISK_BUS_DMA_PRIVATE */
#endif /* _LANDISK_BUS_H_ */