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/****************************************************************************
* configs/sam3u-ek/src/up_usbmsc.c
*
* Copyright (C) 2009, 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* Configure and register the SAM3U MMC/SD SDIO block driver.
*
* 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 <stdio.h>
#include <debug.h>
#include <errno.h>
#include <nuttx/sdio.h>
#include <nuttx/mmcsd.h>
#include "sam_hsmci.h"
#ifdef CONFIG_SAM34_HSMCI
/****************************************************************************
* Pre-Processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#ifndef CONFIG_EXAMPLES_USBMSC_DEVMINOR1
# define CONFIG_EXAMPLES_USBMSC_DEVMINOR1 0
#endif
/* SLOT number(s) could depend on the board configuration */
#ifdef CONFIG_ARCH_BOARD_SAM3U10E_EVAL
# undef SAM_MMCSDSLOTNO
# define SAM_MMCSDSLOTNO 0
#else
/* Add configuration for new SAM3U boards here */
# error "Unrecognized SAM3U board"
#endif
/* Debug ********************************************************************/
#ifdef CONFIG_CPP_HAVE_VARARGS
# ifdef CONFIG_DEBUG
# define message(...) lowsyslog(__VA_ARGS__)
# define msgflush()
# else
# define message(...) printf(__VA_ARGS__)
# define msgflush() fflush(stdout)
# endif
#else
# ifdef CONFIG_DEBUG
# define message lowsyslog
# define msgflush()
# else
# define message printf
# define msgflush() fflush(stdout)
# endif
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: usbmsc_archinitialize
*
* Description:
* Perform architecture specific initialization
*
****************************************************************************/
int usbmsc_archinitialize(void)
{
FAR struct sdio_dev_s *sdio;
int ret;
/* First, get an instance of the SDIO interface */
message("usbmsc_archinitialize: "
"Initializing SDIO slot %d\n",
SAM_MMCSDSLOTNO);
sdio = sdio_initialize(SAM_MMCSDSLOTNO);
if (!sdio)
{
message("usbmsc_archinitialize: Failed to initialize SDIO slot %d\n",
SAM_MMCSDSLOTNO);
return -ENODEV;
}
/* Now bind the SPI interface to the MMC/SD driver */
message("usbmsc_archinitialize: "
"Bind SDIO to the MMC/SD driver, minor=%d\n",
CONFIG_EXAMPLES_USBMSC_DEVMINOR1);
ret = mmcsd_slotinitialize(CONFIG_EXAMPLES_USBMSC_DEVMINOR1, sdio);
if (ret != OK)
{
message("usbmsc_archinitialize: "
"Failed to bind SDIO to the MMC/SD driver: %d\n",
ret);
return ret;
}
message("usbmsc_archinitialize: "
"Successfully bound SDIO to the MMC/SD driver\n");
/* Then let's guess and say that there is a card in the slot. I need to check to
* see if the SAM3U10E-EVAL board supports a GPIO to detect if there is a card in
* the slot.
*/
sdio_mediachange(sdio, true);
return OK;
}
#endif /* CONFIG_SAM34_HSMCI */
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