1998-06-28 11:27:51 +04:00
|
|
|
/* $NetBSD: iomd_io_asm.S,v 1.3 1998/06/28 07:27:52 thorpej Exp $ */
|
1997-10-14 14:58:48 +04:00
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* 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.
|
|
|
|
|
*/
|
|
|
|
|
|
1998-03-26 23:05:13 +03:00
|
|
|
#include <machine/asm.h>
|
|
|
|
|
|
1997-10-14 14:58:48 +04:00
|
|
|
/*
|
|
|
|
|
* bus_space I/O functions for iomd
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* read single
|
|
|
|
|
*/
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_r_1)
|
1997-10-14 14:58:48 +04:00
|
|
|
ldrb r0, [r1, r2, lsl #2]
|
|
|
|
|
mov pc, lr
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_r_2)
|
1997-10-14 14:58:48 +04:00
|
|
|
ldr r0, [r1, r2, lsl #2]
|
|
|
|
|
bic r0, r0, #0xff000000
|
|
|
|
|
bic r0, r0, #0x00ff0000
|
|
|
|
|
mov pc, lr
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_r_4)
|
1997-10-14 14:58:48 +04:00
|
|
|
ldr r0, [r1, r2, lsl #2]
|
|
|
|
|
mov pc, lr
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* write single
|
|
|
|
|
*/
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_w_1)
|
1997-10-14 14:58:48 +04:00
|
|
|
strb r3, [r1, r2, lsl #2]
|
|
|
|
|
mov pc, lr
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_w_2)
|
1997-10-14 14:58:48 +04:00
|
|
|
mov r3, r3, lsl #16
|
|
|
|
|
orr r3, r3, r3, lsr #16
|
|
|
|
|
str r3, [r1, r2, lsl #2]
|
|
|
|
|
mov pc, lr
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_w_4)
|
1997-10-14 14:58:48 +04:00
|
|
|
str r3, [r1, r2, lsl #2]
|
|
|
|
|
mov pc, lr
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* read multiple
|
|
|
|
|
*/
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_rm_2)
|
1997-10-14 14:58:48 +04:00
|
|
|
add r0, r1, r2, lsl #2
|
|
|
|
|
mov r1, r3
|
|
|
|
|
ldr r2, [sp, #0]
|
|
|
|
|
b _insw16
|
|
|
|
|
|
|
|
|
|
/*
|
|
|
|
|
* write multiple
|
|
|
|
|
*/
|
|
|
|
|
|
1998-06-28 11:27:51 +04:00
|
|
|
ENTRY(iomd_bs_wm_2)
|
1997-10-14 14:58:48 +04:00
|
|
|
add r0, r1, r2, lsl #2
|
|
|
|
|
mov r1, r3
|
|
|
|
|
ldr r2, [sp, #0]
|
|
|
|
|
b _outsw16
|
