bcc90b6ff5
may be it will be merged with bus_space_reversed later
- Handle memory resources close to bus in order to control
bus_space_tag
199 lines
4.1 KiB
C
199 lines
4.1 KiB
C
/*-
|
|
* 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 <sys/endian.h>
|
|
|
|
#include <machine/bus.h>
|
|
#include <mips/atheros/ar71xx_pci_bus_space.h>
|
|
|
|
static bs_r_1_s_proto(pcimem);
|
|
static bs_r_2_s_proto(pcimem);
|
|
static bs_r_4_s_proto(pcimem);
|
|
static bs_w_1_s_proto(pcimem);
|
|
static bs_w_2_s_proto(pcimem);
|
|
static bs_w_4_s_proto(pcimem);
|
|
|
|
/*
|
|
* 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_pcimem = {
|
|
/* cookie */
|
|
(void *) 0,
|
|
|
|
/* mapping/unmapping */
|
|
generic_bs_map,
|
|
generic_bs_unmap,
|
|
generic_bs_subregion,
|
|
|
|
/* allocation/deallocation */
|
|
NULL,
|
|
NULL,
|
|
|
|
/* barrier */
|
|
generic_bs_barrier,
|
|
|
|
/* read (single) */
|
|
generic_bs_r_1,
|
|
generic_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) */
|
|
generic_bs_w_1,
|
|
generic_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 */
|
|
pcimem_bs_r_1_s,
|
|
pcimem_bs_r_2_s,
|
|
pcimem_bs_r_4_s,
|
|
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 */
|
|
pcimem_bs_w_1_s,
|
|
pcimem_bs_w_2_s,
|
|
pcimem_bs_w_4_s,
|
|
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_pcimem = &bus_space_pcimem;
|
|
|
|
static uint8_t
|
|
pcimem_bs_r_1_s(void *t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
return readb(h + (o &~ 3) + (3 - (o & 3)));
|
|
}
|
|
|
|
static void
|
|
pcimem_bs_w_1_s(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
|
|
pcimem_bs_r_2_s(void *t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
return readw(h + (o &~ 3) + (2 - (o & 3)));
|
|
}
|
|
|
|
static void
|
|
pcimem_bs_w_2_s(void *t, bus_space_handle_t h, bus_size_t o, uint16_t v)
|
|
{
|
|
|
|
writew(h + (o &~ 3) + (2 - (o & 3)), v);
|
|
}
|
|
|
|
static uint32_t
|
|
pcimem_bs_r_4_s(void *t, bus_space_handle_t h, bus_size_t o)
|
|
{
|
|
|
|
return le32toh(readl(h + o));
|
|
}
|
|
|
|
static void
|
|
pcimem_bs_w_4_s(void *t, bus_space_handle_t h, bus_size_t o, uint32_t v)
|
|
{
|
|
|
|
writel(h + o, htole32(v));
|
|
}
|