freebsd-nq/sys/mips/atheros/ar71xx_bus_space_reversed.c
Pedro F. Giffuni 19d3b47b92 sys/mips: further adoption of SPDX licensing ID tags.
Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.
2017-11-27 15:07:26 +00:00

184 lines
3.8 KiB
C

/*-
* SPDX-License-Identifier: BSD-2-Clause-FreeBSD
*
* Copyright (c) 2009, Oleksandr Tymoshenko <gonzo@FreeBSD.org>
* 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 unmodified, 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 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <machine/bus.h>
#include <mips/atheros/ar71xx_bus_space_reversed.h>
static bs_r_1_proto(reversed);
static bs_r_2_proto(reversed);
static bs_w_1_proto(reversed);
static bs_w_2_proto(reversed);
/*
* Bus space that handles offsets in word for 1/2 bytes read/write access.
* Byte order of values is handled by device drivers itself.
*/
static struct bus_space bus_space_reversed = {
/* cookie */
(void *) 0,
/* mapping/unmapping */
generic_bs_map,
generic_bs_unmap,
generic_bs_subregion,
/* allocation/deallocation */
NULL,
NULL,
/* barrier */
generic_bs_barrier,
/* read (single) */
reversed_bs_r_1,
reversed_bs_r_2,
generic_bs_r_4,
NULL,
/* read multiple */
generic_bs_rm_1,
generic_bs_rm_2,
generic_bs_rm_4,
NULL,
/* read region */
generic_bs_rr_1,
generic_bs_rr_2,
generic_bs_rr_4,
NULL,
/* write (single) */
reversed_bs_w_1,
reversed_bs_w_2,
generic_bs_w_4,
NULL,
/* write multiple */
generic_bs_wm_1,
generic_bs_wm_2,
generic_bs_wm_4,
NULL,
/* write region */
NULL,
generic_bs_wr_2,
generic_bs_wr_4,
NULL,
/* set multiple */
NULL,
NULL,
NULL,
NULL,
/* set region */
NULL,
generic_bs_sr_2,
generic_bs_sr_4,
NULL,
/* copy */
NULL,
generic_bs_c_2,
NULL,
NULL,
/* read (single) stream */
generic_bs_r_1,
generic_bs_r_2,
generic_bs_r_4,
NULL,
/* read multiple stream */
generic_bs_rm_1,
generic_bs_rm_2,
generic_bs_rm_4,
NULL,
/* read region stream */
generic_bs_rr_1,
generic_bs_rr_2,
generic_bs_rr_4,
NULL,
/* write (single) stream */
generic_bs_w_1,
generic_bs_w_2,
generic_bs_w_4,
NULL,
/* write multiple stream */
generic_bs_wm_1,
generic_bs_wm_2,
generic_bs_wm_4,
NULL,
/* write region stream */
NULL,
generic_bs_wr_2,
generic_bs_wr_4,
NULL,
};
bus_space_tag_t ar71xx_bus_space_reversed = &bus_space_reversed;
static uint8_t
reversed_bs_r_1(void *t, bus_space_handle_t h, bus_size_t o)
{
return readb(h + (o &~ 3) + (3 - (o & 3)));
}
static void
reversed_bs_w_1(void *t, bus_space_handle_t h, bus_size_t o, u_int8_t v)
{
writeb(h + (o &~ 3) + (3 - (o & 3)), v);
}
static uint16_t
reversed_bs_r_2(void *t, bus_space_handle_t h, bus_size_t o)
{
return readw(h + (o &~ 3) + (2 - (o & 3)));
}
static void
reversed_bs_w_2(void *t, bus_space_handle_t h, bus_size_t o, uint16_t v)
{
writew(h + (o &~ 3) + (2 - (o & 3)), v);
}