118 lines
4.1 KiB
C
118 lines
4.1 KiB
C
/*
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* Copyright (c) 2014, Texas Instruments Incorporated - http://www.ti.com/
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* All rights reserved.
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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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* 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 the
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* documentation and/or other materials provided with the distribution.
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software 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 HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
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* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/*---------------------------------------------------------------------------*/
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/**
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* \addtogroup common-cc26xx-peripherals
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* @{
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*
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* \defgroup sensortag-cc26xx-ext-flash SensorTag/LaunchPad External Flash
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* @{
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*
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* \file
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* Header file for the Sensortag/LaunchPad External Flash Driver
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*/
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/*---------------------------------------------------------------------------*/
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#ifndef EXT_FLASH_H_
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#define EXT_FLASH_H_
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/*---------------------------------------------------------------------------*/
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#include "dev/spi.h"
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#include <stdint.h>
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#include <stdlib.h>
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#include <stdbool.h>
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/*---------------------------------------------------------------------------*/
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/**
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* \brief Initialize storage driver.
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* \return True when successful.
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*/
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bool ext_flash_open(void);
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/**
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* \brief Close the storage driver
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*
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* This call will put the device in its lower power mode (power down).
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*/
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bool ext_flash_close(void);
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/**
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* \brief Read storage content
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* \param offset Address to read from
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* \param length Number of bytes to read
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* \param buf Buffer where to store the read bytes
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* \return True when successful.
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*
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* buf must be allocated by the caller
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*/
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bool ext_flash_read(uint32_t offset, uint32_t length, uint8_t *buf);
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/**
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* \brief Erase storage sectors corresponding to the range.
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* \param offset Address to start erasing
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* \param length Number of bytes to erase
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* \return True when successful.
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*
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* The erase operation will be sector-wise, therefore a call to this function
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* will generally start the erase procedure at an address lower than offset
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*/
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bool ext_flash_erase(uint32_t offset, uint32_t length);
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/**
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* \brief Write to storage sectors.
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* \param offset Address to write to
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* \param length Number of bytes to write
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* \param buf Buffer holding the bytes to be written
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*
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* \return True when successful.
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*/
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bool ext_flash_write(uint32_t offset, uint32_t length, const uint8_t *buf);
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/**
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* \brief Test the flash (power on self-test)
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* \return True when successful.
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*/
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bool ext_flash_test(void);
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/**
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* \brief Initialise the external flash
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*
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* This function will explicitly put the part in its lowest power mode
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* (power-down).
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*
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* In order to perform any operation, the caller must first wake the device
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* up by calling ext_flash_open()
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*/
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bool ext_flash_init(spi_device_t *conf);
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/*---------------------------------------------------------------------------*/
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#endif /* EXT_FLASH_H_ */
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/*---------------------------------------------------------------------------*/
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/**
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* @}
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* @}
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*/
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