/*      $NetBSD: bus_funcs.h,v 1.1 2011/07/01 17:10:01 dyoung Exp $     */

/*-
* Copyright (c) 1996, 1997, 1998, 2001 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 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 _SPARC_BUS_FUNCS_H_
#define _SPARC_BUS_FUNCS_H_

bus_space_tag_t bus_space_tag_alloc(bus_space_tag_t, void *);
int             bus_space_translate_address_generic(struct openprom_range *,
                                                   int, bus_addr_t *);

/*
* Bus space function prototypes.
* In bus_space_map2(), supply a special virtual address only if you
* get it from ../sparc/vaddrs.h.
*/
int     bus_space_map2(
                       bus_space_tag_t,
                       bus_addr_t,
                       bus_size_t,
                       int,                    /*flags*/
                       vaddr_t,                /*preferred vaddr*/
                       bus_space_handle_t *);
void    *bus_intr_establish(
                       bus_space_tag_t,
                       int,                    /*bus-specific intr*/
                       int,                    /*device class level,
                                                 see machine/intr.h*/
                       int (*)(void *),        /*handler*/
                       void *);                /*handler arg*/
void    *bus_intr_establish2(
                       bus_space_tag_t,
                       int,                    /*bus-specific intr*/
                       int,                    /*device class level,
                                                 see machine/intr.h*/
                       int (*)(void *),        /*handler*/
                       void *,                 /*handler arg*/
                       void (*)(void));        /*optional fast vector*/

#define bus_space_vaddr(t, h)   ((void)(t), (void *)(h))

/*
* Device space probe assistant.
* The optional callback function's arguments are:
*      the temporary virtual address
*      the passed `arg' argument
*/
int bus_space_probe(
               bus_space_tag_t,
               bus_addr_t,
               bus_size_t,                     /* probe size */
               size_t,                         /* offset */
               int,                            /* flags */
               int (*)(void *, void *),        /* callback function */
               void *);                        /* callback arg */

/*
*      u_intN_t bus_space_read_N(bus_space_tag_t tag,
*          bus_space_handle_t bsh, bus_size_t offset);
*
* Read a 1, 2, 4, or 8 byte quantity from bus space
* described by tag/handle/offset.
*/

#define bus_space_read_1_real(t, h, o)                                  \
           ((void)(t), *(volatile uint8_t *)((h) + (o)))

#define bus_space_read_2_real(t, h, o)                                  \
           ((void)(t), *(volatile uint16_t *)((h) + (o)))

#define bus_space_read_4_real(t, h, o)                                  \
           ((void)(t), *(volatile uint32_t *)((h) + (o)))

#define bus_space_read_8_real(t, h, o)                                  \
           ((void)(t), *(volatile uint64_t *)((h) + (o)))

#define bus_space_read_stream_1 bus_space_read_1_real
#define bus_space_read_stream_2 bus_space_read_2_real
#define bus_space_read_stream_4 bus_space_read_4_real
#define bus_space_read_stream_8 bus_space_read_8_real


/*
*      void bus_space_write_N(bus_space_tag_t tag,
*          bus_space_handle_t bsh, bus_size_t offset,
*          u_intN_t value);
*
* Write the 1, 2, 4, or 8 byte value `value' to bus space
* described by tag/handle/offset.
*/

#define bus_space_write_1_real(t, h, o, v)      do {                    \
       ((void)(t), (void)(*(volatile uint8_t *)((h) + (o)) = (v)));    \
} while (/* CONSTCOND */ 0)

#define bus_space_write_2_real(t, h, o, v)      do {                    \
       ((void)(t), (void)(*(volatile uint16_t *)((h) + (o)) = (v)));   \
} while (/* CONSTCOND */ 0)

#define bus_space_write_4_real(t, h, o, v)      do {                    \
       ((void)(t), (void)(*(volatile uint32_t *)((h) + (o)) = (v)));   \
} while (/* CONSTCOND */ 0)

#define bus_space_write_8_real(t, h, o, v)      do {                    \
       ((void)(t), (void)(*(volatile uint64_t *)((h) + (o)) = (v)));   \
} while (/* CONSTCOND */ 0)

#define bus_space_write_stream_1 bus_space_write_1_real
#define bus_space_write_stream_2 bus_space_write_2_real
#define bus_space_write_stream_4 bus_space_write_4_real
#define bus_space_write_stream_8 bus_space_write_8_real

#define bus_space_read_multi_stream_1 bus_space_read_multi_1
#define bus_space_write_multi_stream_1 bus_space_write_multi_1

/* Forwards needed by prototypes below. */
struct mbuf;
struct uio;

#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, p, o, l, ops)                        \
       (void)((t)->_dmamap_sync ?                              \
           (*(t)->_dmamap_sync)((t), (p), (o), (l), (ops)) : (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 _SPARC_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_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);
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);

vaddr_t _bus_dma_valloc_skewed(size_t, u_long, u_long, u_long);
#endif /* _SPARC_BUS_DMA_PRIVATE */

#endif /* _SPARC_BUS_FUNCS_H_ */

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