e2022f5884
to remove errors, duplications and inconsistencies. File lib/stm32/f1/pwr.c - all code removed as it duplicates that in common/pwr_common.c Remaining changes do not affect code. Compiles OK. TODO efm32 has no code so generates no modules TODO F2 needs pwr.c TODO L1 needs dma.h and dma.c
90 lines
2.4 KiB
C
90 lines
2.4 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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#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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