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177 lines
5.6 KiB
177 lines
5.6 KiB
/*****************************************************************************
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*
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* \file
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*
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* \brief CTRL_ACCESS interface for SD/MMC card.
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*
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* Copyright (c) 2014-2015 Atmel Corporation. All rights reserved.
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*
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* \asf_license_start
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*
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* \page License
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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 are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. The name of Atmel may not 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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* 4. This software may only be redistributed and used in connection with an
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* Atmel microcontroller product.
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*
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* THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED
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* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT ARE
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* EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR 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) 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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* \asf_license_stop
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*
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******************************************************************************/
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/*
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* Support and FAQ: visit <a href="https://www.atmel.com/design-support/">Atmel Support</a>
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*/
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#ifndef _SD_MMC_SPI_MEM_H_
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#define _SD_MMC_SPI_MEM_H_
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/**
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* \defgroup group_avr32_components_memory_sd_mmc_sd_mmc_spi_mem SD/MMC SPI Memory
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*
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* \ingroup group_avr32_components_memory_sd_mmc_sd_mmc_spi
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*
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* \{
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*/
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#include "conf_access.h"
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#if SD_MMC_SPI_MEM == DISABLE
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#error sd_mmc_spi_mem.h is #included although SD_MMC_SPI_MEM is disabled
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#endif
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#include "ctrl_access.h"
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//_____ D E F I N I T I O N S ______________________________________________
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#define SD_MMC_REMOVED 0
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#define SD_MMC_INSERTED 1
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#define SD_MMC_REMOVING 2
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//---- CONTROL FONCTIONS ----
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//!
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//! @brief This function initializes the hw/sw resources required to drive the SD_MMC_SPI.
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//!/
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extern void sd_mmc_spi_mem_init(void);
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//!
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//! @brief This function tests the state of the SD_MMC memory and sends it to the Host.
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//! For a PC, this device is seen as a removable media
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//! Before indicating any modification of the status of the media (GOOD->NO_PRESENT or vice-versa),
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//! the function must return the BUSY data to make the PC accepting the change
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//!
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//! @return Ctrl_status
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//! Media is ready -> CTRL_GOOD
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//! Media not present -> CTRL_NO_PRESENT
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//! Media has changed -> CTRL_BUSY
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//!/
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extern Ctrl_status sd_mmc_spi_test_unit_ready(void);
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//!
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//! @brief This function gives the address of the last valid sector.
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//!
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//! @param *nb_sector number of sector (sector = 512B). OUT
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//!
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//! @return Ctrl_status
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//! Media ready -> CTRL_GOOD
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//! Media not present -> CTRL_NO_PRESENT
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//!/
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extern Ctrl_status sd_mmc_spi_read_capacity(uint32_t *nb_sector);
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/*! \brief Unload/Load the SD/MMC card selected
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*
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* The START STOP UNIT SCSI optional command allows an application client to
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* eject the removable medium on a LUN.
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*
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* \param unload \c true to unload the medium, \c false to load the medium.
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*
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* \return \c true if unload/load done success.
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*/
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extern bool sd_mmc_spi_unload(bool unload);
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//!
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//! @brief This function returns the write protected status of the memory.
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//!
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//! Only used by memory removal with a HARDWARE SPECIFIC write protected detection
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//! ! The user must unplug the memory to change this write protected status,
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//! which cannot be for a SD_MMC.
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//!
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//! @return false -> the memory is not write-protected (always)
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//!/
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extern bool sd_mmc_spi_wr_protect(void);
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//!
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//! @brief This function tells if the memory has been removed or not.
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//!
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//! @return false -> The memory isn't removed
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//!
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extern bool sd_mmc_spi_removal(void);
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//---- ACCESS DATA FONCTIONS ----
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#if ACCESS_USB == true
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// Standard functions for open in read/write mode the device
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//!
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//! @brief This function performs a read operation of n sectors from a given address on.
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//! (sector = 512B)
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//!
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//! DATA FLOW is: SD_MMC => USB
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//!
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//! @param addr Sector address to start the read from
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//! @param nb_sector Number of sectors to transfer
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//!
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//! @return Ctrl_status
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//! It is ready -> CTRL_GOOD
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//! A error occur -> CTRL_FAIL
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//!
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extern Ctrl_status sd_mmc_spi_usb_read_10(uint32_t addr, uint16_t nb_sector);
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//! This function initializes the SD/MMC memory for a write operation
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//!
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//! DATA FLOW is: USB => SD_MMC
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//!
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//! (sector = 512B)
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//! @param addr Sector address to start write
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//! @param nb_sector Number of sectors to transfer
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//!
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//! @return Ctrl_status
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//! It is ready -> CTRL_GOOD
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//! An error occurs -> CTRL_FAIL
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//!
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extern Ctrl_status sd_mmc_spi_usb_write_10(uint32_t addr, uint16_t nb_sector);
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#endif // #if ACCESS_USB == true
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/**
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* \}
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*/
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#endif // _SD_MMC_SPI_MEM_H_
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