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/*-
* Copyright (c) 2009 RMI Corporation
* 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.
*
* 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.
*
* $FreeBSD: release/9.1.0/sys/mips/rmi/bus_space_rmi.c 204131 2010-02-20 16:32:33Z rrs $
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD: release/9.1.0/sys/mips/rmi/bus_space_rmi.c 204131 2010-02-20 16:32:33Z rrs $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
#include <sys/kernel.h>
#include <sys/endian.h>
#include <sys/malloc.h>
#include <sys/ktr.h>
#include <vm/vm.h>
#include <vm/pmap.h>
#include <vm/vm_kern.h>
#include <vm/vm_extern.h>
#include <machine/bus.h>
#include <machine/cache.h>
static int
rmi_bus_space_map(void *t, bus_addr_t addr,
bus_size_t size, int flags,
bus_space_handle_t * bshp);
static void
rmi_bus_space_unmap(void *t, bus_space_handle_t bsh,
bus_size_t size);
static int
rmi_bus_space_subregion(void *t,
bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size,
bus_space_handle_t * nbshp);
static u_int8_t
rmi_bus_space_read_1(void *t,
bus_space_handle_t handle,
bus_size_t offset);
static u_int16_t
rmi_bus_space_read_2(void *t,
bus_space_handle_t handle,
bus_size_t offset);
static u_int32_t
rmi_bus_space_read_4(void *t,
bus_space_handle_t handle,
bus_size_t offset);
static void
rmi_bus_space_read_multi_1(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int8_t * addr,
size_t count);
static void
rmi_bus_space_read_multi_2(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int16_t * addr,
size_t count);
static void
rmi_bus_space_read_multi_4(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int32_t * addr,
size_t count);
static void
rmi_bus_space_read_region_1(void *t,
bus_space_handle_t bsh,
bus_size_t offset, u_int8_t * addr,
size_t count);
static void
rmi_bus_space_read_region_2(void *t,
bus_space_handle_t bsh,
bus_size_t offset, u_int16_t * addr,
size_t count);
static void
rmi_bus_space_read_region_4(void *t,
bus_space_handle_t bsh,
bus_size_t offset, u_int32_t * addr,
size_t count);
static void
rmi_bus_space_write_1(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int8_t value);
static void
rmi_bus_space_write_2(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int16_t value);
static void
rmi_bus_space_write_4(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int32_t value);
static void
rmi_bus_space_write_multi_1(void *t,
bus_space_handle_t handle,
bus_size_t offset,
const u_int8_t * addr,
size_t count);
static void
rmi_bus_space_write_multi_2(void *t,
bus_space_handle_t handle,
bus_size_t offset,
const u_int16_t * addr,
size_t count);
static void
rmi_bus_space_write_multi_4(void *t,
bus_space_handle_t handle,
bus_size_t offset,
const u_int32_t * addr,
size_t count);
static void
rmi_bus_space_write_region_2(void *t,
bus_space_handle_t bsh,
bus_size_t offset,
const u_int16_t * addr,
size_t count);
static void
rmi_bus_space_write_region_4(void *t,
bus_space_handle_t bsh,
bus_size_t offset,
const u_int32_t * addr,
size_t count);
static void
rmi_bus_space_set_region_2(void *t,
bus_space_handle_t bsh,
bus_size_t offset, u_int16_t value,
size_t count);
static void
rmi_bus_space_set_region_4(void *t,
bus_space_handle_t bsh,
bus_size_t offset, u_int32_t value,
size_t count);
static void
rmi_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused,
bus_size_t offset __unused, bus_size_t len __unused, int flags);
static void
rmi_bus_space_copy_region_2(void *t,
bus_space_handle_t bsh1,
bus_size_t off1,
bus_space_handle_t bsh2,
bus_size_t off2, size_t count);
u_int8_t
rmi_bus_space_read_stream_1(void *t, bus_space_handle_t handle,
bus_size_t offset);
static u_int16_t
rmi_bus_space_read_stream_2(void *t, bus_space_handle_t handle,
bus_size_t offset);
static u_int32_t
rmi_bus_space_read_stream_4(void *t, bus_space_handle_t handle,
bus_size_t offset);
static void
rmi_bus_space_read_multi_stream_1(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int8_t * addr,
size_t count);
static void
rmi_bus_space_read_multi_stream_2(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int16_t * addr,
size_t count);
static void
rmi_bus_space_read_multi_stream_4(void *t,
bus_space_handle_t handle,
bus_size_t offset, u_int32_t * addr,
size_t count);
void
rmi_bus_space_write_stream_1(void *t, bus_space_handle_t bsh,
bus_size_t offset, u_int8_t value);
static void
rmi_bus_space_write_stream_2(void *t, bus_space_handle_t handle,
bus_size_t offset, u_int16_t value);
static void
rmi_bus_space_write_stream_4(void *t, bus_space_handle_t handle,
bus_size_t offset, u_int32_t value);
static void
rmi_bus_space_write_multi_stream_1(void *t,
bus_space_handle_t handle,
bus_size_t offset,
const u_int8_t * addr,
size_t count);
static void
rmi_bus_space_write_multi_stream_2(void *t,
bus_space_handle_t handle,
bus_size_t offset,
const u_int16_t * addr,
size_t count);
static void
rmi_bus_space_write_multi_stream_4(void *t,
bus_space_handle_t handle,
bus_size_t offset,
const u_int32_t * addr,
size_t count);
#define TODO() printf("XLR memory bus space function '%s' unimplemented\n", __func__)
static struct bus_space local_rmi_bus_space = {
/* cookie */
(void *)0,
/* mapping/unmapping */
rmi_bus_space_map,
rmi_bus_space_unmap,
rmi_bus_space_subregion,
/* allocation/deallocation */
NULL,
NULL,
/* barrier */
rmi_bus_space_barrier,
/* read (single) */
rmi_bus_space_read_1,
rmi_bus_space_read_2,
rmi_bus_space_read_4,
NULL,
/* read multiple */
rmi_bus_space_read_multi_1,
rmi_bus_space_read_multi_2,
rmi_bus_space_read_multi_4,
NULL,
/* read region */
rmi_bus_space_read_region_1,
rmi_bus_space_read_region_2,
rmi_bus_space_read_region_4,
NULL,
/* write (single) */
rmi_bus_space_write_1,
rmi_bus_space_write_2,
rmi_bus_space_write_4,
NULL,
/* write multiple */
rmi_bus_space_write_multi_1,
rmi_bus_space_write_multi_2,
rmi_bus_space_write_multi_4,
NULL,
/* write region */
NULL,
rmi_bus_space_write_region_2,
rmi_bus_space_write_region_4,
NULL,
/* set multiple */
NULL,
NULL,
NULL,
NULL,
/* set region */
NULL,
rmi_bus_space_set_region_2,
rmi_bus_space_set_region_4,
NULL,
/* copy */
NULL,
rmi_bus_space_copy_region_2,
NULL,
NULL,
/* read (single) stream */
rmi_bus_space_read_stream_1,
rmi_bus_space_read_stream_2,
rmi_bus_space_read_stream_4,
NULL,
/* read multiple stream */
rmi_bus_space_read_multi_stream_1,
rmi_bus_space_read_multi_stream_2,
rmi_bus_space_read_multi_stream_4,
NULL,
/* read region stream */
rmi_bus_space_read_region_1,
rmi_bus_space_read_region_2,
rmi_bus_space_read_region_4,
NULL,
/* write (single) stream */
rmi_bus_space_write_stream_1,
rmi_bus_space_write_stream_2,
rmi_bus_space_write_stream_4,
NULL,
/* write multiple stream */
rmi_bus_space_write_multi_stream_1,
rmi_bus_space_write_multi_stream_2,
rmi_bus_space_write_multi_stream_4,
NULL,
/* write region stream */
NULL,
rmi_bus_space_write_region_2,
rmi_bus_space_write_region_4,
NULL,
};
/* generic bus_space tag */
bus_space_tag_t rmi_bus_space = &local_rmi_bus_space;
/*
* Map a region of device bus space into CPU virtual address space.
*/
static int
rmi_bus_space_map(void *t __unused, bus_addr_t addr,
bus_size_t size __unused, int flags __unused,
bus_space_handle_t * bshp)
{
*bshp = addr;
return (0);
}
/*
* Unmap a region of device bus space.
*/
static void
rmi_bus_space_unmap(void *t __unused, bus_space_handle_t bsh __unused,
bus_size_t size __unused)
{
}
/*
* Get a new handle for a subregion of an already-mapped area of bus space.
*/
static int
rmi_bus_space_subregion(void *t __unused, bus_space_handle_t bsh,
bus_size_t offset, bus_size_t size __unused,
bus_space_handle_t * nbshp)
{
*nbshp = bsh + offset;
return (0);
}
/*
* Read a 1, 2, 4, or 8 byte quantity from bus space
* described by tag/handle/offset.
*/
static u_int8_t
rmi_bus_space_read_1(void *tag, bus_space_handle_t handle,
bus_size_t offset)
{
return (u_int8_t) (*(volatile u_int32_t *)(handle + offset));
}
static u_int16_t
rmi_bus_space_read_2(void *tag, bus_space_handle_t handle,
bus_size_t offset)
{
return (u_int16_t)(*(volatile u_int32_t *)(handle + offset));
}
static u_int32_t
rmi_bus_space_read_4(void *tag, bus_space_handle_t handle,
bus_size_t offset)
{
return (*(volatile u_int32_t *)(handle + offset));
}
/*
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
* described by tag/handle/offset and copy into buffer provided.
*/
static void
rmi_bus_space_read_multi_1(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int8_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_read_multi_2(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int16_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_read_multi_4(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int32_t * addr, size_t count)
{
TODO();
}
/*
* Write the 1, 2, 4, or 8 byte value `value' to bus space
* described by tag/handle/offset.
*/
static void
rmi_bus_space_write_1(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int8_t value)
{
*(volatile u_int32_t *)(handle + offset) = (u_int32_t)value;
}
static void
rmi_bus_space_write_2(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int16_t value)
{
*(volatile u_int32_t *)(handle + offset) = (u_int32_t)value;
}
static void
rmi_bus_space_write_4(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int32_t value)
{
*(volatile u_int32_t *)(handle + offset) = value;
}
/*
* Write `count' 1, 2, 4, or 8 byte quantities from the buffer
* provided to bus space described by tag/handle/offset.
*/
static void
rmi_bus_space_write_multi_1(void *tag, bus_space_handle_t handle,
bus_size_t offset, const u_int8_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_write_multi_2(void *tag, bus_space_handle_t handle,
bus_size_t offset, const u_int16_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_write_multi_4(void *tag, bus_space_handle_t handle,
bus_size_t offset, const u_int32_t * addr, size_t count)
{
TODO();
}
/*
* Write `count' 1, 2, 4, or 8 byte value `val' to bus space described
* by tag/handle starting at `offset'.
*/
static void
rmi_bus_space_set_region_2(void *t, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t value, size_t count)
{
bus_addr_t addr = bsh + offset;
for (; count != 0; count--, addr += 2)
(*(volatile u_int32_t *)(addr)) = value;
}
static void
rmi_bus_space_set_region_4(void *t, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t value, size_t count)
{
bus_addr_t addr = bsh + offset;
for (; count != 0; count--, addr += 4)
(*(volatile u_int32_t *)(addr)) = value;
}
/*
* Copy `count' 1, 2, 4, or 8 byte values from bus space starting
* at tag/bsh1/off1 to bus space starting at tag/bsh2/off2.
*/
static void
rmi_bus_space_copy_region_2(void *t, bus_space_handle_t bsh1,
bus_size_t off1, bus_space_handle_t bsh2,
bus_size_t off2, size_t count)
{
printf("bus_space_copy_region_2 - unimplemented\n");
}
/*
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
* described by tag/handle/offset and copy into buffer provided.
*/
u_int8_t
rmi_bus_space_read_stream_1(void *t, bus_space_handle_t handle,
bus_size_t offset)
{
return *((volatile u_int8_t *)(handle + offset));
}
static u_int16_t
rmi_bus_space_read_stream_2(void *t, bus_space_handle_t handle,
bus_size_t offset)
{
return *(volatile u_int16_t *)(handle + offset);
}
static u_int32_t
rmi_bus_space_read_stream_4(void *t, bus_space_handle_t handle,
bus_size_t offset)
{
return (*(volatile u_int32_t *)(handle + offset));
}
static void
rmi_bus_space_read_multi_stream_1(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int8_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_read_multi_stream_2(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int16_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_read_multi_stream_4(void *tag, bus_space_handle_t handle,
bus_size_t offset, u_int32_t * addr, size_t count)
{
TODO();
}
/*
* Read `count' 1, 2, 4, or 8 byte quantities from bus space
* described by tag/handle and starting at `offset' and copy into
* buffer provided.
*/
void
rmi_bus_space_read_region_1(void *t, bus_space_handle_t bsh,
bus_size_t offset, u_int8_t * addr, size_t count)
{
TODO();
}
void
rmi_bus_space_read_region_2(void *t, bus_space_handle_t bsh,
bus_size_t offset, u_int16_t * addr, size_t count)
{
TODO();
}
void
rmi_bus_space_read_region_4(void *t, bus_space_handle_t bsh,
bus_size_t offset, u_int32_t * addr, size_t count)
{
bus_addr_t baddr = bsh + offset;
while (count--) {
*addr++ = (*(volatile u_int32_t *)(baddr));
baddr += 4;
}
}
void
rmi_bus_space_write_stream_1(void *t, bus_space_handle_t handle,
bus_size_t offset, u_int8_t value)
{
TODO();
}
static void
rmi_bus_space_write_stream_2(void *t, bus_space_handle_t handle,
bus_size_t offset, u_int16_t value)
{
TODO();
}
static void
rmi_bus_space_write_stream_4(void *t, bus_space_handle_t handle,
bus_size_t offset, u_int32_t value)
{
TODO();
}
static void
rmi_bus_space_write_multi_stream_1(void *tag, bus_space_handle_t handle,
bus_size_t offset, const u_int8_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_write_multi_stream_2(void *tag, bus_space_handle_t handle,
bus_size_t offset, const u_int16_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_write_multi_stream_4(void *tag, bus_space_handle_t handle,
bus_size_t offset, const u_int32_t * addr, size_t count)
{
TODO();
}
void
rmi_bus_space_write_region_2(void *t,
bus_space_handle_t bsh,
bus_size_t offset,
const u_int16_t * addr,
size_t count)
{
TODO();
}
void
rmi_bus_space_write_region_4(void *t, bus_space_handle_t bsh,
bus_size_t offset, const u_int32_t * addr, size_t count)
{
TODO();
}
static void
rmi_bus_space_barrier(void *tag __unused, bus_space_handle_t bsh __unused,
bus_size_t offset __unused, bus_size_t len __unused, int flags)
{
}