144 lines
4.9 KiB
C
144 lines
4.9 KiB
C
/****************************************************************************
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* arch/arm/src/stm32l4/stm32l4_qspi.h
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*
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* Copyright (C) 2016 Gregory Nutt. All rights reserved.
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* Author: dev@ziggurat29.com
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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#ifndef __ARCH_ARM_SRC_STM32L4_STM32L4_QSPI_H
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#define __ARCH_ARM_SRC_STM32L4_STM32L4_QSPI_H
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include "chip.h"
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#ifdef CONFIG_STM32L4_QSPI
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/****************************************************************************
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* Public Types
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****************************************************************************/
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/****************************************************************************
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* Inline Functions
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****************************************************************************/
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#ifndef __ASSEMBLY__
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/****************************************************************************
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* Public Data
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****************************************************************************/
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#undef EXTERN
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#if defined(__cplusplus)
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#define EXTERN extern "C"
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extern "C"
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{
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#else
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#define EXTERN extern
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#endif
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/****************************************************************************
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* Public Function Prototypes
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****************************************************************************/
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/****************************************************************************
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* Name: stm32l4_qspi_initialize
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*
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* Description:
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* Initialize the selected QSPI port in master mode
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*
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* Input Parameters:
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* intf - Interface number(must be zero)
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*
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* Returned Value:
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* Valid SPI device structure reference on success; a NULL on failure
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*
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****************************************************************************/
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struct qspi_dev_s;
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FAR struct qspi_dev_s *stm32l4_qspi_initialize(int intf);
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/****************************************************************************
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* Name: stm32l4_qspi_enter_memorymapped
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*
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* Description:
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* Put the QSPI device into memory mapped mode
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*
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* Input Parameters:
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* dev - QSPI device
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* meminfo - parameters like for a memory transfer used for reading
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* lpto - number of cycles to wait to automatically de-assert CS
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void stm32l4_qspi_enter_memorymapped(struct qspi_dev_s* dev,
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const struct qspi_meminfo_s *meminfo,
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uint32_t lpto);
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/****************************************************************************
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* Name: stm32l4_qspi_exit_memorymapped
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*
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* Description:
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* Take the QSPI device out of memory mapped mode
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*
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* Input Parameters:
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* dev - QSPI device
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*
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* Returned Value:
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* None
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*
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****************************************************************************/
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void stm32l4_qspi_exit_memorymapped(struct qspi_dev_s* dev);
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#undef EXTERN
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#if defined(__cplusplus)
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}
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#endif
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#endif /* __ASSEMBLY__ */
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#endif /* CONFIG_STM32L4_QSPI */
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#endif /* __ARCH_ARM_SRC_STM32L4_STM32L4_QSPI_H */
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