/*      $NetBSD: bus_funcs.h,v 1.1 2011/07/19 15:31:44 dyoung Exp $     */

/*-
* Copyright (c) 1997, 1998, 2000, 2001, 2002 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.
*/

/*
* Copyright (c) 1996 Carnegie-Mellon University.
* All rights reserved.
*
* Author: Chris G. Demetriou
*
* Permission to use, copy, modify and distribute this software and
* its documentation is hereby granted, provided that both the copyright
* notice and this permission notice appear in all copies of the
* software, derivative works or modified versions, and any portions
* thereof, and that both notices appear in supporting documentation.
*
* CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
* CONDITION.  CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND
* FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
*
* Carnegie Mellon requests users of this software to return to
*
*  Software Distribution Coordinator  or  [email protected]
*  School of Computer Science
*  Carnegie Mellon University
*  Pittsburgh PA 15213-3890
*
* any improvements or extensions that they make and grant Carnegie the
* rights to redistribute these changes.
*/

#ifndef _HPCSH_BUS_FUNCS_H_
#define _HPCSH_BUS_FUNCS_H_

#ifdef _KERNEL

/*
* Create default bus_space tag.
*/
bus_space_tag_t bus_space_create(bus_space_tag_t, const char *, bus_addr_t,
                                bus_size_t);
void bus_space_destroy(bus_space_tag_t);

#define __hbs_c(a,b)            __CONCAT(a,b)
#define __hbs_opname(op,size)   __hbs_c(__hbs_c(__hbs_c(hbs_,op),_),size)

#define __hbs_rs(sz, tn, t, h, o)                                       \
       (__BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr"),         \
        (*(t)->__hbs_opname(r,sz))((t)->hbs_cookie, h, o))

#define __hbs_ws(sz, tn, t, h, o, v)                                    \
do {                                                                    \
       __BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr");          \
       (*(t)->__hbs_opname(w,sz))((t)->hbs_cookie, h, o, v);           \
} while (0)

#define __hbs_nonsingle(type, sz, tn, t, h, o, a, c)                    \
do {                                                                    \
       __BUS_SPACE_ADDRESS_SANITY((a), tn, "buffer");                  \
       __BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr");          \
       (*(t)->__hbs_opname(type,sz))((t)->hbs_cookie, h, o, a, c);     \
} while (0)

#define __hbs_set(type, sz, tn, t, h, o, v, c)                          \
do {                                                                    \
       __BUS_SPACE_ADDRESS_SANITY((h) + (o), tn, "bus addr");          \
       (*(t)->__hbs_opname(type,sz))((t)->hbs_cookie, h, o, v, c);     \
} while (0)

#define __hbs_copy(sz, tn, t, h1, o1, h2, o2, cnt)                      \
do {                                                                    \
       __BUS_SPACE_ADDRESS_SANITY((h1) + (o1), tn, "bus addr 1");      \
       __BUS_SPACE_ADDRESS_SANITY((h2) + (o2), tn, "bus addr 2");      \
       (*(t)->__hbs_opname(c,sz))((t)->hbs_cookie, h1, o1, h2, o2, cnt); \
} while (0)

/*
* Mapping and unmapping operations.
*/
#define bus_space_map(t, a, s, f, hp)                                   \
       (*(t)->hbs_map)((t)->hbs_cookie, (a), (s), (f), (hp))
#define bus_space_unmap(t, h, s)                                        \
       (*(t)->hbs_unmap)((t)->hbs_cookie, (h), (s))
#define bus_space_subregion(t, h, o, s, hp)                             \
       (*(t)->hbs_subregion)((t)->hbs_cookie, (h), (o), (s), (hp))

/*
* Allocation and deallocation operations.
*/
#define bus_space_alloc(t, rs, re, s, a, b, f, ap, hp)                  \
       (*(t)->hbs_alloc)((t)->hbs_cookie, (rs), (re), (s), (a), (b),   \
           (f), (ap), (hp))
#define bus_space_free(t, h, s)                                         \
       (*(t)->hbs_free)((t)->hbs_cookie, (h), (s))

/*
* Get kernel virtual address for ranges mapped BUS_SPACE_MAP_LINEAR.
*/
#define bus_space_vaddr(t, h) \
       (*(t)->hbs_vaddr)((t)->hbs_cookie, (h))

/*
* Bus barrier operations.  The hpcsh 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)))

/*
* Bus read (single) operations.
*/
#define bus_space_read_1(t, h, o)       __hbs_rs(1,uint8_t,(t),(h),(o))
#define bus_space_read_2(t, h, o)       __hbs_rs(2,uint16_t,(t),(h),(o))
#define bus_space_read_4(t, h, o)       __hbs_rs(4,uint32_t,(t),(h),(o))
#define bus_space_read_8(t, h, o)       __hbs_rs(8,uint64_t,(t),(h),(o))


/*
* Bus read multiple operations.
*/
#define bus_space_read_multi_1(t, h, o, a, c)                           \
       __hbs_nonsingle(rm,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_read_multi_2(t, h, o, a, c)                           \
       __hbs_nonsingle(rm,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_read_multi_4(t, h, o, a, c)                           \
       __hbs_nonsingle(rm,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_read_multi_8(t, h, o, a, c)                           \
       __hbs_nonsingle(rm,8,uint64_t,(t),(h),(o),(a),(c))


/*
* Bus read region operations.
*/
#define bus_space_read_region_1(t, h, o, a, c)                          \
       __hbs_nonsingle(rr,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_read_region_2(t, h, o, a, c)                          \
       __hbs_nonsingle(rr,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_read_region_4(t, h, o, a, c)                          \
       __hbs_nonsingle(rr,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_read_region_8(t, h, o, a, c)                          \
       __hbs_nonsingle(rr,8,uint64_t,(t),(h),(o),(a),(c))


/*
* Bus write (single) operations.
*/
#define bus_space_write_1(t, h, o, v)   __hbs_ws(1,uint8_t,(t),(h),(o),(v))
#define bus_space_write_2(t, h, o, v)   __hbs_ws(2,uint16_t,(t),(h),(o),(v))
#define bus_space_write_4(t, h, o, v)   __hbs_ws(4,uint32_t,(t),(h),(o),(v))
#define bus_space_write_8(t, h, o, v)   __hbs_ws(8,uint64_t,(t),(h),(o),(v))


/*
* Bus write multiple operations.
*/
#define bus_space_write_multi_1(t, h, o, a, c)                          \
       __hbs_nonsingle(wm,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_write_multi_2(t, h, o, a, c)                          \
       __hbs_nonsingle(wm,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_write_multi_4(t, h, o, a, c)                          \
       __hbs_nonsingle(wm,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_write_multi_8(t, h, o, a, c)                          \
       __hbs_nonsingle(wm,8,uint64_t,(t),(h),(o),(a),(c))


/*
* Bus write region operations.
*/
#define bus_space_write_region_1(t, h, o, a, c)                         \
       __hbs_nonsingle(wr,1,uint8_t,(t),(h),(o),(a),(c))
#define bus_space_write_region_2(t, h, o, a, c)                         \
       __hbs_nonsingle(wr,2,uint16_t,(t),(h),(o),(a),(c))
#define bus_space_write_region_4(t, h, o, a, c)                         \
       __hbs_nonsingle(wr,4,uint32_t,(t),(h),(o),(a),(c))
#define bus_space_write_region_8(t, h, o, a, c)                         \
       __hbs_nonsingle(wr,8,uint64_t,(t),(h),(o),(a),(c))


/*
* Set multiple operations.
*/
#define bus_space_set_multi_1(t, h, o, v, c)                            \
       __hbs_set(sm,1,uint8_t,(t),(h),(o),(v),(c))
#define bus_space_set_multi_2(t, h, o, v, c)                            \
       __hbs_set(sm,2,uint16_t,(t),(h),(o),(v),(c))
#define bus_space_set_multi_4(t, h, o, v, c)                            \
       __hbs_set(sm,4,uint32_t,(t),(h),(o),(v),(c))
#define bus_space_set_multi_8(t, h, o, v, c)                            \
       __hbs_set(sm,8,uint64_t,(t),(h),(o),(v),(c))


/*
* Set region operations.
*/
#define bus_space_set_region_1(t, h, o, v, c)                           \
       __hbs_set(sr,1,uint8_t,(t),(h),(o),(v),(c))
#define bus_space_set_region_2(t, h, o, v, c)                           \
       __hbs_set(sr,2,uint16_t,(t),(h),(o),(v),(c))
#define bus_space_set_region_4(t, h, o, v, c)                           \
       __hbs_set(sr,4,uint32_t,(t),(h),(o),(v),(c))
#define bus_space_set_region_8(t, h, o, v, c)                           \
       __hbs_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)                   \
       __hbs_copy(1, uint8_t, (t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_2(t, h1, o1, h2, o2, c)                   \
       __hbs_copy(2, uint16_t, (t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_4(t, h1, o1, h2, o2, c)                   \
       __hbs_copy(4, uint32_t, (t), (h1), (o1), (h2), (o2), (c))
#define bus_space_copy_region_8(t, h1, o1, h2, o2, c)                   \
       __hbs_copy(8, uint64_t, (t), (h1), (o1), (h2), (o2), (c))

/*
* Bus stream operations--defined in terms of non-stream counterparts
*/
#define __BUS_SPACE_HAS_STREAM_METHODS 1
#define bus_space_read_stream_1 bus_space_read_1
#define bus_space_read_stream_2 bus_space_read_2
#define bus_space_read_stream_4 bus_space_read_4
#define bus_space_read_stream_8 bus_space_read_8
#define bus_space_read_multi_stream_1 bus_space_read_multi_1
#define bus_space_read_multi_stream_2 bus_space_read_multi_2
#define bus_space_read_multi_stream_4 bus_space_read_multi_4
#define bus_space_read_multi_stream_8 bus_space_read_multi_8
#define bus_space_read_region_stream_1 bus_space_read_region_1
#define bus_space_read_region_stream_2 bus_space_read_region_2
#define bus_space_read_region_stream_4 bus_space_read_region_4
#define bus_space_read_region_stream_8 bus_space_read_region_8
#define bus_space_write_stream_1 bus_space_write_1
#define bus_space_write_stream_2 bus_space_write_2
#define bus_space_write_stream_4 bus_space_write_4
#define bus_space_write_stream_8 bus_space_write_8
#define bus_space_write_multi_stream_1 bus_space_write_multi_1
#define bus_space_write_multi_stream_2 bus_space_write_multi_2
#define bus_space_write_multi_stream_4 bus_space_write_multi_4
#define bus_space_write_multi_stream_8 bus_space_write_multi_8
#define bus_space_write_region_stream_1 bus_space_write_region_1
#define bus_space_write_region_stream_2 bus_space_write_region_2
#define bus_space_write_region_stream_4 bus_space_write_region_4
#define bus_space_write_region_stream_8 bus_space_write_region_8

#endif /* _KERNEL */

#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))

#define bus_dmatag_subregion(t, mna, mxa, nt, f) EOPNOTSUPP
#define bus_dmatag_destroy(t)

#ifdef _HPCSH_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, void **kvap, int flags);
void    _bus_dmamem_unmap(bus_dma_tag_t tag, void *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);

int     _bus_dmamem_alloc_range(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,
           vaddr_t low, vaddr_t high);
#endif /* _HPCSH_BUS_DMA_PRIVATE */

#endif /* _HPCSH_BUS_FUNCS_H_ */

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