| #ifndef __IO_H__ |
| #define __IO_H__ |
| |
| /****************************************************************************** |
| * * |
| * License Agreement * |
| * * |
| * Copyright (c) 2003 Altera Corporation, San Jose, California, USA. * |
| * All rights reserved. * |
| * * |
| * Permission is hereby granted, free of charge, to any person obtaining a * |
| * copy of this software and associated documentation files (the "Software"), * |
| * to deal in the Software without restriction, including without limitation * |
| * the rights to use, copy, modify, merge, publish, distribute, sublicense, * |
| * and/or sell copies of the Software, and to permit persons to whom the * |
| * Software is furnished to do so, subject to the following conditions: * |
| * * |
| * The above copyright notice and this permission notice shall be included in * |
| * all copies or substantial portions of the Software. * |
| * * |
| * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * |
| * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * |
| * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE * |
| * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * |
| * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING * |
| * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER * |
| * DEALINGS IN THE SOFTWARE. * |
| * * |
| * * |
| * Altera does not recommend, suggest or require that this reference design * |
| * file be used in conjunction or combination with any other product. * |
| ******************************************************************************/ |
| |
| /* IO Header file for Nios II Toolchain */ |
| |
| #include "alt_types.h" |
| #ifdef __cplusplus |
| extern "C" |
| { |
| #endif /* __cplusplus */ |
| |
| #ifndef SYSTEM_BUS_WIDTH |
| #define SYSTEM_BUS_WIDTH 32 |
| #endif |
| |
| /* Dynamic bus access functions */ |
| |
| #define __IO_CALC_ADDRESS_DYNAMIC(BASE, OFFSET) \ |
| ((void *)(((alt_u8*)BASE) + (OFFSET))) |
| |
| #define IORD_32DIRECT(BASE, OFFSET) \ |
| __builtin_ldwio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))) |
| #define IORD_16DIRECT(BASE, OFFSET) \ |
| __builtin_ldhuio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))) |
| #define IORD_8DIRECT(BASE, OFFSET) \ |
| __builtin_ldbuio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET))) |
| |
| #define IOWR_32DIRECT(BASE, OFFSET, DATA) \ |
| __builtin_stwio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)), (DATA)) |
| #define IOWR_16DIRECT(BASE, OFFSET, DATA) \ |
| __builtin_sthio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)), (DATA)) |
| #define IOWR_8DIRECT(BASE, OFFSET, DATA) \ |
| __builtin_stbio (__IO_CALC_ADDRESS_DYNAMIC ((BASE), (OFFSET)), (DATA)) |
| |
| /* Native bus access functions */ |
| |
| #define __IO_CALC_ADDRESS_NATIVE(BASE, REGNUM) \ |
| ((void *)(((alt_u8*)BASE) + ((REGNUM) * (SYSTEM_BUS_WIDTH/8)))) |
| |
| #define IORD(BASE, REGNUM) \ |
| __builtin_ldwio (__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM))) |
| #define IOWR(BASE, REGNUM, DATA) \ |
| __builtin_stwio (__IO_CALC_ADDRESS_NATIVE ((BASE), (REGNUM)), (DATA)) |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __IO_H__ */ |