mirror of
https://github.com/marqs85/ossc
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82 lines
3.9 KiB
C
82 lines
3.9 KiB
C
#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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#define SYSTEM_BUS_WIDTH 32
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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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(*(volatile alt_u32*)(__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))))
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#define IORD_16DIRECT(BASE, OFFSET) \
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(*(volatile alt_u16*)(__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))))
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#define IORD_8DIRECT(BASE, OFFSET) \
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(*(volatile alt_u8*)(__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))))
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#define IOWR_32DIRECT(BASE, OFFSET, DATA) \
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(*(volatile alt_u32*)(__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))) = (DATA))
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#define IOWR_16DIRECT(BASE, OFFSET, DATA) \
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(*(volatile alt_u16*)(__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))) = (DATA))
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#define IOWR_8DIRECT(BASE, OFFSET, DATA) \
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(*(volatile alt_u8*)(__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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(*(volatile alt_u32*)(__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM))))
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#define IOWR(BASE, REGNUM, DATA) \
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(*(volatile alt_u32*)(__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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