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/************************************************************************************
* configs/sam3u-ek/src/up_mmcsd.c
* arch/arm/src/board/up_mmcsd.c
*
* Copyright (C) 2010 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* 3. Neither the name NuttX nor the names of its contributors may be
* used to endorse or promote products derived from this software
* without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*
************************************************************************************/
/************************************************************************************
* Included Files
************************************************************************************/
#include <nuttx/config.h>
#include <stdbool.h>
#include <debug.h>
#include "sam3u_internal.h"
#include "sam3uek_internal.h"
#ifdef CONFIG_SAM3U_HSMCI
/************************************************************************************
* Definitions
************************************************************************************/
/* This needs to be extended. The card detect GPIO must be configured as an interrupt.
* when the interrupt indicating that a card has been inserted or removed is received,
* this function must call sio_mediachange() to handle that event. See
* arch/arm/src/sam3u/sam3u_internal.h for more information.
*/
#ifdef GPIO_MCI_CD
# warning "Card detect interrupt handling needed"
#endif
/************************************************************************************
* Private Functions
************************************************************************************/
/************************************************************************************
* Public Functions
************************************************************************************/
/************************************************************************************
* Name: sam3u_hsmciinit
*
* Description:
* Initialize HSMCI support. This function is called very early in board
* initialization.
*
************************************************************************************/
int sam3u_hsmciinit(void)
{
#ifdef GPIO_MCI_CD
sam3u_configgpio(GPIO_MCI_CD);
#endif
#ifdef GPIO_MCI_WP
sam3u_configgpio(GPIO_MCI_WP);
#endif
return OK;
}
/************************************************************************************
* Name: sam3u_cardinserted
*
* Description:
* Check if a card is inserted into the selected HSMCI slot
*
************************************************************************************/
bool sam3u_cardinserted(unsigned char slot)
{
if (slot == 0)
{
#ifdef GPIO_MCI_CD
bool inserted = sam3u_gpioread(GPIO_MCI_CD);
fvdbg("inserted: %s\n", inserted ? "NO" : "YES");
return !inserted;
#else
return true;
#endif
}
return false;
}
/************************************************************************************
* Name: sam3u_writeprotected
*
* Description:
* Check if a card is inserted into the selected HSMCI slot
*
************************************************************************************/
bool sam3u_writeprotected(unsigned char slot)
{
if (slot == 0)
{
#ifdef GPIO_MCI_WP
bool protected = sam3u_gpioread(GPIO_MCI_WP);
fvdbg("protected: %s\n", inserted ? "YES" : "NO");
return protected;
#else
return false;
#endif
}
return false;
}
#endif /* CONFIG_SAM3U_HSMCI */
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