Return to pio.h CVS log

Up to [local] / sys / arch / mips64 / include

Annotation of sys/arch/mips64/include/pio.h, Revision 1.1.1.1

1.1       nbrk        1: /*     $OpenBSD: pio.h,v 1.3 2004/08/10 20:28:13 deraadt Exp $ */
                      2:
                      3: /*
                      4:  * Copyright (c) 2001-2003 Opsycon AB  (www.opsycon.se / www.opsycon.com)
                      5:  *
                      6:  * Redistribution and use in source and binary forms, with or without
                      7:  * modification, are permitted provided that the following conditions
                      8:  * are met:
                      9:  * 1. Redistributions of source code must retain the above copyright
                     10:  *    notice, this list of conditions and the following disclaimer.
                     11:  * 2. Redistributions in binary form must reproduce the above copyright
                     12:  *    notice, this list of conditions and the following disclaimer in the
                     13:  *    documentation and/or other materials provided with the distribution.
                     14:  *
                     15:  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS
                     16:  * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
                     17:  * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     18:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
                     19:  * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     20:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     21:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     22:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     23:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     24:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     25:  * SUCH DAMAGE.
                     26:  *
                     27:  */
                     28:
                     29: #ifndef _MIPS_PIO_H_
                     30: #define _MIPS_PIO_H_
                     31:
                     32: /*
                     33:  * I/O macros.
                     34:  */
                     35:
                     36: #define        outb(a,v)       (*(volatile unsigned char*)(a) = (v))
                     37: #define        out8(a,v)       (*(volatile unsigned char*)(a) = (v))
                     38: #define        outw(a,v)       (*(volatile unsigned short*)(a) = (v))
                     39: #define        out16(a,v)      outw(a,v)
                     40: #define        outl(a,v)       (*(volatile unsigned int*)(a) = (v))
                     41: #define        out32(a,v)      outl(a,v)
                     42: #define        inb(a)          (*(volatile unsigned char*)(a))
                     43: #define        in8(a)          (*(volatile unsigned char*)(a))
                     44: #define        inw(a)          (*(volatile unsigned short*)(a))
                     45: #define        in16(a)         inw(a)
                     46: #define        inl(a)          (*(volatile unsigned int*)(a))
                     47: #define        in32(a)         inl(a)
                     48:
                     49: #define        out8rb(a,v)     (*(volatile unsigned char*)(a) = (v))
                     50: #define out16rb(a,v)   (__out16rb((volatile u_int16_t *)(a), v))
                     51: #define out32rb(a,v)   (__out32rb((volatile u_int32_t *)(a), v))
                     52: #define        in8rb(a)        (*(volatile unsigned char*)(a))
                     53: #define in16rb(a)      (__in16rb((volatile u_int16_t *)(a)))
                     54: #define in32rb(a)      (__in32rb((volatile u_int32_t *)(a)))
                     55:
                     56: #define        _swap_(x) \
                     57:        (((x) >> 24) | ((x) << 24) | \
                     58:        (((x) >> 8) & 0xff00) | (((x) & 0xff00) << 8))
                     59:
                     60: static __inline void __out32rb(volatile u_int32_t *, u_int32_t);
                     61: static __inline void __out16rb(volatile u_int16_t *, u_int16_t);
                     62: static __inline u_int32_t __in32rb(volatile u_int32_t *);
                     63: static __inline u_int16_t __in16rb(volatile u_int16_t *);
                     64:
                     65: static __inline void
                     66: __out32rb(a,v)
                     67:        volatile u_int32_t *a;
                     68:        u_int32_t v;
                     69: {
                     70:        u_int32_t _v_ = v;
                     71:
                     72:        _v_ = _swap_(_v_);
                     73:        out32(a, _v_);
                     74: }
                     75:
                     76: static __inline void
                     77: __out16rb(a,v)
                     78:         volatile u_int16_t *a;
                     79:         u_int16_t v;
                     80: {
                     81:         u_int16_t _v_;
                     82:
                     83:        _v_ = ((v >> 8) & 0xff) | (v << 8);
                     84:        out16(a, _v_);
                     85: }
                     86:
                     87: static __inline u_int32_t
                     88: __in32rb(a)
                     89:         volatile u_int32_t *a;
                     90: {
                     91:         u_int32_t _v_;
                     92:
                     93:        _v_ = in32(a);
                     94:        _v_ = _swap_(_v_);
                     95:         return _v_;
                     96: }
                     97:
                     98: static __inline u_int16_t
                     99: __in16rb(a)
                    100:         volatile u_int16_t *a;
                    101: {
                    102:         u_int16_t _v_;
                    103:
                    104:        _v_ = in16(a);
                    105:        _v_ = ((_v_ >> 8) & 0xff) | (_v_ << 8);
                    106:         return _v_;
                    107: }
                    108:
                    109: void insb(u_int8_t *, u_int8_t *,int);
                    110: void insw(u_int16_t *, u_int16_t *,int);
                    111: void insl(u_int32_t *, u_int32_t *,int);
                    112: void outsb(u_int8_t *, const u_int8_t *,int);
                    113: void outsw(u_int16_t *, const u_int16_t *,int);
                    114: void outsl(u_int32_t *, const u_int32_t *,int);
                    115:
                    116: /* Helper function to access bus 64 bit at at time in LP32 mode */
                    117: u_int64_t lp32_read8(u_int64_t *);
                    118: void lp32_write8(u_int64_t *, u_int64_t);
                    119:
                    120: #endif /* !_MIPS_PIO_H_ */