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[/] [ao486/] [trunk/] [syn/] [components/] [vga/] [software/] [exe_bsp/] [HAL/] [inc/] [io.h] - Blame information for rev 2

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1 2 alfik
#ifndef __IO_H__
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#define __IO_H__
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/******************************************************************************
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*                                                                             *
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* License Agreement                                                           *
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*                                                                             *
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* Copyright (c) 2003 Altera Corporation, San Jose, California, USA.           *
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* All rights reserved.                                                        *
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*                                                                             *
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* Permission is hereby granted, free of charge, to any person obtaining a     *
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* copy of this software and associated documentation files (the "Software"),  *
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* to deal in the Software without restriction, including without limitation   *
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,    *
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* and/or sell copies of the Software, and to permit persons to whom the       *
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* Software is furnished to do so, subject to the following conditions:        *
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*                                                                             *
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* The above copyright notice and this permission notice shall be included in  *
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* all copies or substantial portions of the Software.                         *
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*                                                                             *
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR  *
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,    *
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE *
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER      *
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING     *
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER         *
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* DEALINGS IN THE SOFTWARE.                                                   *
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*                                                                             *
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* This agreement shall be governed in all respects by the laws of the State   *
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* of California and by the laws of the United States of America.              *
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*                                                                             *
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* Altera does not recommend, suggest or require that this reference design    *
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* file be used in conjunction or combination with any other product.          *
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******************************************************************************/
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/* IO Header file for Nios II Toolchain */
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#include "alt_types.h"
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#ifndef SYSTEM_BUS_WIDTH
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#error SYSTEM_BUS_WIDTH undefined
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#endif
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/* Dynamic bus access functions */
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#define __IO_CALC_ADDRESS_DYNAMIC(BASE, OFFSET) \
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  ((void *)(((alt_u8*)BASE) + (OFFSET)))
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#define IORD_32DIRECT(BASE, OFFSET) \
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  __builtin_ldwio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)))
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#define IORD_16DIRECT(BASE, OFFSET) \
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  __builtin_ldhuio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)))
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#define IORD_8DIRECT(BASE, OFFSET) \
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  __builtin_ldbuio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)))
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#define IOWR_32DIRECT(BASE, OFFSET, DATA) \
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  __builtin_stwio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)), (DATA))
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#define IOWR_16DIRECT(BASE, OFFSET, DATA) \
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  __builtin_sthio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)), (DATA))
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#define IOWR_8DIRECT(BASE, OFFSET, DATA) \
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  __builtin_stbio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)), (DATA))
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/* Native bus access functions */
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#define __IO_CALC_ADDRESS_NATIVE(BASE, REGNUM) \
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  ((void *)(((alt_u8*)BASE) + ((REGNUM) * (SYSTEM_BUS_WIDTH/8))))
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#define IORD(BASE, REGNUM) \
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  __builtin_ldwio (__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM)))
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#define IOWR(BASE, REGNUM, DATA) \
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  __builtin_stwio (__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM)), (DATA))
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#ifdef __cplusplus
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}
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#endif
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#endif /* __IO_H__ */

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