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3657 vana 1 
/*
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 * Copyright (c) 2005 Jakub Vana
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 * All rights reserved.
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 *
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 * Redistribution and use in source and binary forms, with or without
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 * modification, are permitted provided that the following conditions
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 * are met:
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 *
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 * - Redistributions of source code must retain the above copyright
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 *   notice, this list of conditions and the following disclaimer.
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 * - Redistributions in binary form must reproduce the above copyright
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 *   notice, this list of conditions and the following disclaimer in the
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 *   documentation and/or other materials provided with the distribution.
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 * - The name of the author may not be used to endorse or promote products
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 *   derived from this software without specific prior written permission.
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 *
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 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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 */
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/** @addtogroup libcia64   
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 * @{
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 */
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/** @file
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 */
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#ifndef LIBC_ia64_DDI_H_
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#define LIBC_ia64_DDI_H_
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#include <sys/types.h>
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#include <libarch/types.h>
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#define IO_SPACE_BOUNDARY   (64 * 1024)
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uint64_t get_ia64_iospace_address(void);
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extern uint64_t ia64_iospace_address;
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#define IA64_IOSPACE_ADDRESS \
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    (ia64_iospace_address ? \
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        ia64_iospace_address : \
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        (ia64_iospace_address = get_ia64_iospace_address()))
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static inline void pio_write_8(ioport8_t *port, uint8_t v)
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{
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    uintptr_t prt = (uintptr_t) port;
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    *((uint8_t *)(IA64_IOSPACE_ADDRESS +
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        ((prt & 0xfff) | ((prt >> 2) << 12)))) = v;
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    asm volatile ("mf\n" ::: "memory");
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}
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static inline void pio_write_16(ioport16_t *port, uint16_t v)
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{
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    uintptr_t prt = (uintptr_t) port;
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    *((uint16_t *)(IA64_IOSPACE_ADDRESS +
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        ((prt & 0xfff) | ((prt >> 2) << 12)))) = v;
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    asm volatile ("mf\n" ::: "memory");
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}
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static inline void pio_write_32(ioport32_t *port, uint32_t v)
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{
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    uintptr_t prt = (uintptr_t) port;
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    *((uint32_t *)(IA64_IOSPACE_ADDRESS +
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        ((prt & 0xfff) | ((prt >> 2) << 12)))) = v;
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    asm volatile ("mf\n" ::: "memory");
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}
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static inline uint8_t pio_read_8(ioport8_t *port)
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{
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    uintptr_t prt = (uintptr_t) port;
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    asm volatile ("mf\n" ::: "memory");
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    return *((uint8_t *)(IA64_IOSPACE_ADDRESS +
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        ((prt & 0xfff) | ((prt >> 2) << 12))));
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}
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static inline uint16_t pio_read_16(ioport16_t *port)
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{
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    uintptr_t prt = (uintptr_t) port;
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    asm volatile ("mf\n" ::: "memory");
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    return *((uint16_t *)(IA64_IOSPACE_ADDRESS +
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        ((prt & 0xffE) | ((prt >> 2) << 12))));
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}
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static inline uint32_t pio_read_32(ioport32_t *port)
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{
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    uintptr_t prt = (uintptr_t) port;
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    asm volatile ("mf\n" ::: "memory");
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    return *((uint32_t *)(IA64_IOSPACE_ADDRESS +
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        ((prt & 0xfff) | ((prt >> 2) << 12))));
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}
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#endif
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/** @}
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 */