4559857c8e
API match the convenience macros in <sys/bus.h>. Bus space can now reference both bus and busdma.
158 lines
3.4 KiB
C
158 lines
3.4 KiB
C
/*-
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* Copyright (c) 2014 Marcel Moolenaar
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include <sys/types.h>
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#include <errno.h>
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#include "bus.h"
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#include "busdma.h"
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#include "libbus.h"
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int16_t
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bus_read_1(int rid, long ofs)
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{
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uint8_t val;
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return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val);
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}
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int32_t
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bus_read_2(int rid, long ofs)
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{
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uint16_t val;
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return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int)val);
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}
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int64_t
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bus_read_4(int rid, long ofs)
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{
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uint32_t val;
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return ((!bs_read(rid, ofs, &val, sizeof(val))) ? -1 : (int64_t)val);
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}
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int
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bus_write_1(int rid, long ofs, uint8_t val)
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{
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return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
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}
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int
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bus_write_2(int rid, long ofs, uint16_t val)
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{
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return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
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}
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int
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bus_write_4(int rid, long ofs, uint32_t val)
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{
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return ((!bs_write(rid, ofs, &val, sizeof(val))) ? errno : 0);
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}
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int
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bus_map(const char *dev)
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{
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return (bs_map(dev));
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}
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int
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bus_unmap(int rid)
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{
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return ((!bs_unmap(rid)) ? errno : 0);
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}
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int
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bus_subregion(int rid, long ofs, long sz)
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{
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return (bs_subregion(rid, ofs, sz));
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}
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int
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busdma_tag_create(const char *dev, bus_addr_t align, bus_addr_t bndry,
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bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs, bus_size_t maxsegsz,
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u_int datarate, u_int flags, busdma_tag_t *out_p)
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{
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int res;
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res = bd_tag_create(dev, align, bndry, maxaddr, maxsz, nsegs, maxsegsz,
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datarate, flags);
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if (res == -1)
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return (errno);
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*out_p = res;
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return (0);
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}
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int
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busdma_tag_derive(busdma_tag_t tag, bus_addr_t align, bus_addr_t bndry,
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bus_addr_t maxaddr, bus_size_t maxsz, u_int nsegs, bus_size_t maxsegsz,
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u_int datarate, u_int flags, busdma_tag_t *out_p)
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{
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int res;
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res = bd_tag_derive(tag, align, bndry, maxaddr, maxsz, nsegs, maxsegsz,
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datarate, flags);
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if (res == -1)
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return (errno);
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*out_p = res;
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return (0);
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}
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int
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busdma_tag_destroy(busdma_tag_t tag)
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{
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return (bd_tag_destroy(tag));
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}
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int
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busdma_mem_alloc(busdma_tag_t tag, u_int flags, busdma_md_t *out_p)
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{
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int res;
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res = bd_mem_alloc(tag, flags);
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if (res == -1)
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return (errno);
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*out_p = res;
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return (0);
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}
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int
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busdma_mem_free(busdma_md_t md)
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{
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return (bd_mem_free(md));
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}
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