1 /* $OpenBSD: devreg.h,v 1.3 2008/06/26 05:42:12 ray Exp $ */ 2 /* $NetBSD: devreg.h,v 1.5 2006/01/21 04:57:07 uwe Exp $ */ 3 4 /*- 5 * Copyright (c) 2002 The NetBSD Foundation, Inc. 6 * All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 18 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 19 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 20 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef _SH_DEVREG_H_ 31 #define _SH_DEVREG_H_ 32 /* 33 * SH embedded device register defines. 34 */ 35 36 /* 37 * Access method 38 */ 39 #define _reg_read_1(a) (*(volatile uint8_t *)((vaddr_t)(a))) 40 #define _reg_read_2(a) (*(volatile uint16_t *)((vaddr_t)(a))) 41 #define _reg_read_4(a) (*(volatile uint32_t *)((vaddr_t)(a))) 42 #define _reg_write_1(a, v) \ 43 (*(volatile uint8_t *)(a) = (uint8_t)(v)) 44 #define _reg_write_2(a, v) \ 45 (*(volatile uint16_t *)(a) = (uint16_t)(v)) 46 #define _reg_write_4(a, v) \ 47 (*(volatile uint32_t *)(a) = (uint32_t)(v)) 48 #define _reg_bset_1(a, v) \ 49 (*(volatile uint8_t *)(a) |= (uint8_t)(v)) 50 #define _reg_bset_2(a, v) \ 51 (*(volatile uint16_t *)(a) |= (uint16_t)(v)) 52 #define _reg_bset_4(a, v) \ 53 (*(volatile uint32_t *)(a) |= (uint32_t)(v)) 54 #define _reg_bclr_1(a, v) \ 55 (*(volatile uint8_t *)(a) &= ~(uint8_t)(v)) 56 #define _reg_bclr_2(a, v) \ 57 (*(volatile uint16_t *)(a) &= ~(uint16_t)(v)) 58 #define _reg_bclr_4(a, v) \ 59 (*(volatile uint32_t *)(a) &= ~(uint32_t)(v)) 60 61 /* 62 * Register address. 63 */ 64 #if defined(SH3) && defined(SH4) 65 #define SH_(x) __sh_ ## x 66 #elif defined(SH3) 67 #define SH_(x) SH3_ ## x 68 #elif defined(SH4) 69 #define SH_(x) SH4_ ## x 70 #endif 71 72 #ifndef _LOCORE 73 /* Initialize register address for SH3 && SH4 kernel. */ 74 void sh_devreg_init(void); 75 #endif 76 #endif /* !_SH_DEVREG_H_ */ 77