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      1 /*	$NetBSD: devreg.h,v 1.7 2021/10/06 20:36:58 andvar Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  *
     16  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     17  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     18  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     19  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     20  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     26  * POSSIBILITY OF SUCH DAMAGE.
     27  */
     28 
     29 #ifndef _SH3_DEVREG_H_
     30 #define	_SH3_DEVREG_H_
     31 /*
     32  * SH embedded device register defines.
     33  */
     34 
     35 /*
     36  * Access method
     37  */
     38 #define	_reg_read_1(a)		(*(volatile uint8_t *)((vaddr_t)(a)))
     39 #define	_reg_read_2(a)		(*(volatile uint16_t *)((vaddr_t)(a)))
     40 #define	_reg_read_4(a)		(*(volatile uint32_t *)((vaddr_t)(a)))
     41 #define	_reg_write_1(a, v)						\
     42 	(*(volatile uint8_t *)(a)  = (uint8_t)(v))
     43 #define	_reg_write_2(a, v)						\
     44 	(*(volatile uint16_t *)(a) = (uint16_t)(v))
     45 #define	_reg_write_4(a, v)						\
     46 	(*(volatile uint32_t *)(a) = (uint32_t)(v))
     47 #define	_reg_bset_1(a, v)						\
     48 	(*(volatile uint8_t *)(a)  |= (uint8_t)(v))
     49 #define	_reg_bset_2(a, v)						\
     50 	(*(volatile uint16_t *)(a) |= (uint16_t)(v))
     51 #define	_reg_bset_4(a, v)						\
     52 	(*(volatile uint32_t *)(a) |= (uint32_t)(v))
     53 #define	_reg_bclr_1(a, v)						\
     54 	(*(volatile uint8_t *)(a)  &= ~(uint8_t)(v))
     55 #define	_reg_bclr_2(a, v)						\
     56 	(*(volatile uint16_t *)(a) &= ~(uint16_t)(v))
     57 #define	_reg_bclr_4(a, v)						\
     58 	(*(volatile uint32_t *)(a) &= ~(uint32_t)(v))
     59 
     60 /*
     61  * Register address.
     62  */
     63 #if defined(SH3) && defined(SH4)
     64 #define	SH_(x)		__sh_ ## x
     65 #elif defined(SH3)
     66 #define	SH_(x)		SH3_ ## x
     67 #elif defined(SH4)
     68 #define	SH_(x)		SH4_ ## x
     69 #endif
     70 
     71 #ifndef _LOCORE
     72 /* Initialize register address for SH3 && SH4 kernel. */
     73 void sh_devreg_init(void);
     74 #endif
     75 #endif /* !_SH3_DEVREG_H_ */
     76