a9a85f080b
(prevents inclusion and also issues warning) Changes to some source files to remove references to common headers. Changes to rng.h to make guard symbols the same in f2 and f4.
97 lines
2.7 KiB
C
97 lines
2.7 KiB
C
/** @addtogroup crc_defines
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@author @htmlonly © @endhtmlonly 2010 Thomas Otto <tommi@viadmin.org>
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*/
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/*
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* This file is part of the libopencm3 project.
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*
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* Copyright (C) 2010 Thomas Otto <tommi@viadmin.org>
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*
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* This library is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Lesser General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public License
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* along with this library. If not, see <http://www.gnu.org/licenses/>.
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*/
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/* THIS FILE SHOULD NOT BE INCLUDED DIRECTLY, BUT ONLY VIA CRC.H
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The order of header inclusion is important. crc.h includes the device
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specific memorymap.h header before including this header file.*/
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#ifdef LIBOPENCM3_CRC_H
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#ifndef LIBOPENCM3_CRC_COMMON_ALL_H
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#define LIBOPENCM3_CRC_COMMON_ALL_H
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#include <libopencm3/cm3/common.h>
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/* --- CRC registers ------------------------------------------------------- */
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/* Data register (CRC_DR) */
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#define CRC_DR MMIO32(CRC_BASE + 0x00)
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/* Independent data register (CRC_IDR) */
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#define CRC_IDR MMIO32(CRC_BASE + 0x04)
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/* Control register (CRC_CR) */
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#define CRC_CR MMIO32(CRC_BASE + 0x08)
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/* --- CRC_DR values ------------------------------------------------------- */
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/* Bits [31:0]: Data register */
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/* --- CRC_IDR values ------------------------------------------------------ */
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/* Bits [31:8]: Reserved */
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/* Bits [7:0]: General-purpose 8-bit data register bits */
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/* --- CRC_CR values ------------------------------------------------------- */
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/* Bits [31:1]: Reserved */
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/* RESET bit */
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#define CRC_CR_RESET (1 << 0)
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/* --- CRC function prototypes --------------------------------------------- */
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BEGIN_DECLS
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/* TODO */
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/**
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* Reset the CRC calculator to initial values.
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*/
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void crc_reset(void);
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/**
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* Add a word to the crc calculator and return the result.
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* @param data new word to add to the crc calculator
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* @return final crc calculator value
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*/
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u32 crc_calculate(u32 data);
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/**
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* Add a block of data to the CRC calculator and return the final result
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* @param datap pointer to the start of a block of 32bit data words
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* @param size length of data, in 32bit increments
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* @return final CRC calculator value
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*/
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u32 crc_calculate_block(u32 *datap, int size);
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END_DECLS
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#endif
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#else
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#warning "crc_common_all.h should not be included explicitly, only via crc.h"
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#endif
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