/* $NetBSD: iomd_io.c,v 1.7 2018/03/16 17:56:31 ryo Exp $ */
/*
* Copyright (c) 1997 Mark Brinicombe.
* Copyright (c) 1997 Causality Limited.
* 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 Mark Brinicombe.
* 4. The name of the company nor the name of the author may 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 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.
*/
/*
* bus_space I/O functions for iomd
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: iomd_io.c,v 1.7 2018/03/16 17:56:31 ryo Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/bus.h>
/* Proto types for all the bus_space structure functions */
bs_protos(iomd);
bs_protos(bs_notimpl);
/* Declare the iomd bus space tag */
struct bus_space iomd_bs_tag = {
/* cookie */
.bs_cookie = NULL,
/* mapping/unmapping */
.bs_map = iomd_bs_map,
.bs_unmap = iomd_bs_unmap,
.bs_subregion = iomd_bs_subregion,
/* allocation/deallocation */
.bs_alloc = iomd_bs_alloc,
.bs_free = iomd_bs_free,
/* get kernel virtual address */
.bs_vaddr = 0, /* there is no linear mapping */
/* mmap bus space for userland */
.bs_mmap = bs_notimpl_bs_mmap, /* XXX correct? XXX */
/* barrier */
.bs_barrier = iomd_bs_barrier,
/* read (single) */
.bs_r_1 = iomd_bs_r_1,
.bs_r_2 = iomd_bs_r_2,
.bs_r_4 = iomd_bs_r_4,
.bs_r_8 = bs_notimpl_bs_r_8,
/* read multiple */
.bs_rm_1 = bs_notimpl_bs_rm_1,
.bs_rm_2 = iomd_bs_rm_2,
.bs_rm_4 = bs_notimpl_bs_rm_4,
.bs_rm_8 = bs_notimpl_bs_rm_8,
/* read region */
.bs_rr_1 = bs_notimpl_bs_rr_1,
.bs_rr_2 = bs_notimpl_bs_rr_2,
.bs_rr_4 = bs_notimpl_bs_rr_4,
.bs_rr_8 = bs_notimpl_bs_rr_8,
/* write (single) */
.bs_w_1 = iomd_bs_w_1,
.bs_w_2 = iomd_bs_w_2,
.bs_w_4 = iomd_bs_w_4,
.bs_w_8 = bs_notimpl_bs_w_8,
/* write multiple */
.bs_wm_1 = bs_notimpl_bs_wm_1,
.bs_wm_2 = iomd_bs_wm_2,
.bs_wm_4 = bs_notimpl_bs_wm_4,
.bs_wm_8 = bs_notimpl_bs_wm_8,
/* write region */
.bs_wr_1 = bs_notimpl_bs_wr_1,
.bs_wr_2 = bs_notimpl_bs_wr_2,
.bs_wr_4 = bs_notimpl_bs_wr_4,
.bs_wr_8 = bs_notimpl_bs_wr_8,
/* set multiple */
.bs_sm_1 = bs_notimpl_bs_sm_1,
.bs_sm_2 = bs_notimpl_bs_sm_2,
.bs_sm_4 = bs_notimpl_bs_sm_4,
.bs_sm_8 = bs_notimpl_bs_sm_8,
/* set region */
.bs_sr_1 = bs_notimpl_bs_sr_1,
.bs_sr_2 = bs_notimpl_bs_sr_2,
.bs_sr_4 = bs_notimpl_bs_sr_4,
.bs_sr_8 = bs_notimpl_bs_sr_8,
/* copy */
.bs_c_1 = bs_notimpl_bs_c_1,
.bs_c_2 = bs_notimpl_bs_c_2,
.bs_c_4 = bs_notimpl_bs_c_4,
.bs_c_8 = bs_notimpl_bs_c_8,
};
/* bus space functions */
int
iomd_bs_map(void *t, bus_addr_t bpa, bus_size_t size, int cacheable,
bus_space_handle_t *bshp)
{
/*
* Temporary implementation as all I/O is already mapped etc.
*
* Eventually this function will do the mapping check for multiple maps
*/
*bshp = bpa;
return 0;
}
int
iomd_bs_alloc(void *t, bus_addr_t rstart, bus_addr_t rend, bus_size_t size,
bus_size_t alignment, bus_size_t boundary, int cacheable, bus_addr_t *bpap,
bus_space_handle_t *bshp)
{
panic("iomd_alloc(): Help!");
}
void
iomd_bs_unmap(void *t, bus_space_handle_t bsh, bus_size_t size)
{
/*
* Temporary implementation
*/
}
void
iomd_bs_free(void *t, bus_space_handle_t bsh, bus_size_t size)
{
panic("iomd_free(): Help!");
/* iomd_unmap() does all that we need to do. */
/* iomd_unmap(t, bsh, size);*/
}
int
iomd_bs_subregion(void *t, bus_space_handle_t bsh, bus_size_t offset,
bus_size_t size, bus_space_handle_t *nbshp)
{
*nbshp = bsh + (offset << 2);
return 0;
}
void
iomd_bs_barrier(void *t, bus_space_handle_t bsh, bus_size_t offset,
bus_size_t len, int flags)
{
}
/* End of iomd_io.c */