bf125e91f9
split spi stuff in three part: - v1 : basic spi peripheral - v1_frf : v1 spi with frf mode additional bit in spi_cr2 / spi_sr - v2 : spi with variable datasize, fifo and other fancy stuff. v1 maps to f1 chips v1_frf to f2, f4 and l0,l1 v2 to f0, f3 and l4 This breaks spi_master_init API for v2 devices : function prototype from common spi header used to be abused, with DFF bit reused for CRCL bit. New v2 spi_master_init does not handle anymore CRCL bits, as it does not usually mess with other crc configuration.
68 lines
2.0 KiB
C
68 lines
2.0 KiB
C
/** @addtogroup spi_defines
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@author @htmlonly © @endhtmlonly 2011 Fergus Noble <fergusnoble@gmail.com>
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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) 2011 Fergus Noble <fergusnoble@gmail.com>
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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 SPI.H
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The order of header inclusion is important. spi.h includes the device
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specific memorymap.h header before including this header file.*/
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/** @cond */
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#ifdef LIBOPENCM3_SPI_H
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/** @endcond */
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#pragma once
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/**@{*/
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#include <libopencm3/stm32/common/spi_common_v1.h>
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/* --- SPI_CR2 values ------------------------------------------------------ */
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/* FRF: Frame format */
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/* Note: Not used in I2S mode. */
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#define SPI_CR2_FRF (1 << 4)
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#define SPI_CR2_FRF_MOTOROLA_MODE (0 << 4)
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#define SPI_CR2_FRF_TI_MODE (1 << 4)
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/* --- SPI_SR values ------------------------------------------------------- */
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/* FRE / TIFRFE: TI frame format error */
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#define SPI_SR_TIFRFE (1 << 8) //F2
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#define SPI_SR_FRE (1 << 8) //others
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/* --- Function prototypes ------------------------------------------------- */
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BEGIN_DECLS
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void spi_set_frf_ti(uint32_t spi);
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void spi_set_frf_motorola(uint32_t spi);
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END_DECLS
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/** @cond */
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#else
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#warning "spi_common_v1_frf.h should not be included explicitly, only via spi.h"
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#endif
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/** @endcond */
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/**@}*/
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