/* $NetBSD: pio.h,v 1.7.52.1 2020/02/25 20:22:14 martin Exp $ */ /* $OpenBSD: pio.h,v 1.1 1997/10/13 10:53:47 pefo Exp $ */ /* * Copyright (c) 1997 Per Fogelstrom, Opsycon AB and RTMX Inc, USA. * * 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 under OpenBSD by * Per Fogelstrom Opsycon AB for RTMX Inc, North Carolina, USA. * 4. The name of the author may not 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 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. * */ #ifndef _POWERPC_PIO_H_ #define _POWERPC_PIO_H_ /* * I/O macros. */ #if defined(PPC_IBM4XX) && !defined(PPC_IBM440) /* eieio is implemented as sync */ #define IO_BARRIER() __asm volatile("sync") #else #define IO_BARRIER() __asm volatile("eieio; sync") #endif static __inline void __outb(volatile uint8_t *a, uint8_t v); static __inline void __outw(volatile uint16_t *a, uint16_t v); static __inline void __outl(volatile uint32_t *a, uint32_t v); static __inline void __outwrb(volatile uint16_t *a, uint16_t v); static __inline void __outlrb(volatile uint32_t *a, uint32_t v); static __inline uint8_t __inb(volatile uint8_t *a); static __inline uint16_t __inw(volatile uint16_t *a); static __inline uint32_t __inl(volatile uint32_t *a); static __inline uint16_t __inwrb(volatile uint16_t *a); static __inline uint32_t __inlrb(volatile uint32_t *a); static __inline void __outsb(volatile uint8_t *, const uint8_t *, size_t); static __inline void __outsw(volatile uint16_t *, const uint16_t *, size_t); static __inline void __outsl(volatile uint32_t *, const uint32_t *, size_t); static __inline void __outswrb(volatile uint16_t *, const uint16_t *, size_t); static __inline void __outslrb(volatile uint32_t *, const uint32_t *, size_t); static __inline void __insb(volatile uint8_t *, uint8_t *, size_t); static __inline void __insw(volatile uint16_t *, uint16_t *, size_t); static __inline void __insl(volatile uint32_t *, uint32_t *, size_t); static __inline void __inswrb(volatile uint16_t *, uint16_t *, size_t); static __inline void __inslrb(volatile uint32_t *, uint32_t *, size_t); static __inline void __outb(volatile uint8_t *a, uint8_t v) { *a = v; IO_BARRIER(); } static __inline void __outw(volatile uint16_t *a, uint16_t v) { *a = v; IO_BARRIER(); } static __inline void __outl(volatile uint32_t *a, uint32_t v) { *a = v; IO_BARRIER(); } static __inline void __outwrb(volatile uint16_t *a, uint16_t v) { __asm volatile("sthbrx %0, 0, %1" :: "r"(v), "r"(a)); IO_BARRIER(); } static __inline void __outlrb(volatile uint32_t *a, uint32_t v) { __asm volatile("stwbrx %0, 0, %1" :: "r"(v), "r"(a)); IO_BARRIER(); } static __inline uint8_t __inb(volatile uint8_t *a) { uint8_t _v_; _v_ = *a; IO_BARRIER(); return _v_; } static __inline uint16_t __inw(volatile uint16_t *a) { uint16_t _v_; _v_ = *a; IO_BARRIER(); return _v_; } static __inline uint32_t __inl(volatile uint32_t *a) { uint32_t _v_; _v_ = *a; IO_BARRIER(); return _v_; } static __inline uint16_t __inwrb(volatile uint16_t *a) { uint16_t _v_; __asm volatile("lhbrx %0, 0, %1" : "=r"(_v_) : "r"(a)); IO_BARRIER(); return _v_; } static __inline uint32_t __inlrb(volatile uint32_t *a) { uint32_t _v_; __asm volatile("lwbrx %0, 0, %1" : "=r"(_v_) : "r"(a)); IO_BARRIER(); return _v_; } #define outb(a,v) (__outb((volatile uint8_t *)(a), v)) #define out8(a,v) outb(a,v) #define outw(a,v) (__outw((volatile uint16_t *)(a), v)) #define out16(a,v) outw(a,v) #define outl(a,v) (__outl((volatile uint32_t *)(a), v)) #define out32(a,v) outl(a,v) #define inb(a) (__inb((volatile uint8_t *)(a))) #define in8(a) inb(a) #define inw(a) (__inw((volatile uint16_t *)(a))) #define in16(a) inw(a) #define inl(a) (__inl((volatile uint32_t *)(a))) #define in32(a) inl(a) #define out8rb(a,v) outb(a,v) #define outwrb(a,v) (__outwrb((volatile uint16_t *)(a), v)) #define out16rb(a,v) outwrb(a,v) #define outlrb(a,v) (__outlrb((volatile uint32_t *)(a), v)) #define out32rb(a,v) outlrb(a,v) #define in8rb(a) inb(a) #define inwrb(a) (__inwrb((volatile uint16_t *)(a))) #define in16rb(a) inwrb(a) #define inlrb(a) (__inlrb((volatile uint32_t *)(a))) #define in32rb(a) inlrb(a) static __inline void __outsb(volatile uint8_t *a, const uint8_t *s, size_t c) { while (c--) *a = *s++; IO_BARRIER(); } static __inline void __outsw(volatile uint16_t *a, const uint16_t *s, size_t c) { while (c--) *a = *s++; IO_BARRIER(); } static __inline void __outsl(volatile uint32_t *a, const uint32_t *s, size_t c) { while (c--) *a = *s++; IO_BARRIER(); } static __inline void __outswrb(volatile uint16_t *a, const uint16_t *s, size_t c) { while (c--) __asm volatile("sthbrx %0, 0, %1" :: "r"(*s++), "r"(a)); IO_BARRIER(); } static __inline void __outslrb(volatile uint32_t *a, const uint32_t *s, size_t c) { while (c--) __asm volatile("stwbrx %0, 0, %1" :: "r"(*s++), "r"(a)); IO_BARRIER(); } static __inline void __insb(volatile uint8_t *a, uint8_t *d, size_t c) { while (c--) *d++ = *a; IO_BARRIER(); } static __inline void __insw(volatile uint16_t *a, uint16_t *d, size_t c) { while (c--) *d++ = *a; IO_BARRIER(); } static __inline void __insl(volatile uint32_t *a, uint32_t *d, size_t c) { while (c--) *d++ = *a; IO_BARRIER(); } static __inline void __inswrb(volatile uint16_t *a, uint16_t *d, size_t c) { while (c--) __asm volatile("lhbrx %0, 0, %1" : "=r"(*d++) : "r"(a)); IO_BARRIER(); } static __inline void __inslrb(volatile uint32_t *a, uint32_t *d, size_t c) { while (c--) __asm volatile("lwbrx %0, 0, %1" : "=r"(*d++) : "r"(a)); IO_BARRIER(); } #define outsb(a,s,c) (__outsb((volatile uint8_t *)(a), s, c)) #define outs8(a,s,c) outsb(a,s,c) #define outsw(a,s,c) (__outsw((volatile uint16_t *)(a), s, c)) #define outs16(a,s,c) outsw(a,s,c) #define outsl(a,s,c) (__outsl((volatile uint32_t *)(a), s, c)) #define outs32(a,s,c) outsl(a,s,c) #define insb(a,d,c) (__insb((volatile uint8_t *)(a), d, c)) #define ins8(a,d,c) insb(a,d,c) #define insw(a,d,c) (__insw((volatile uint16_t *)(a), d, c)) #define ins16(a,d,c) insw(a,d,c) #define insl(a,d,c) (__insl((volatile uint32_t *)(a), d, c)) #define ins32(a,d,c) insl(a,d,c) #define outs8rb(a,s,c) outsb(a,s,c) #define outswrb(a,s,c) (__outswrb((volatile uint16_t *)(a), s, c)) #define outs16rb(a,s,c) outswrb(a,s,c) #define outslrb(a,s,c) (__outslrb((volatile uint32_t *)(a), s, c)) #define outs32rb(a,s,c) outslrb(a,s,c) #define ins8rb(a,d,c) insb(a,d,c) #define inswrb(a,d,c) (__inswrb((volatile uint16_t *)(a), d, c)) #define ins16rb(a,d,c) inswrb(a,d,c) #define inslrb(a,d,c) (__inslrb((volatile uint32_t *)(a), d, c)) #define ins32rb(a,d,c) inslrb(a,d,c) #undef IO_BARRIER #endif /*_POWERPC_PIO_H_*/