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/****************************************************************************
* config/viewtool-stm32f107/src/up_mmcsd.c
*
* Copyright (C) 2013 Gregory Nutt. All rights reserved.
* Author: Gregory Nutt <gnutt@nuttx.org>
*
* 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 "stm32_sdio.h"
#include "viewtool_stm32f107.h"
/* Only the STM32F103 supports the SDIO interface */
#ifdef CONFIG_ARCH_CHIP_STM32F103VC
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
/* Configuration ************************************************************/
#define HAVE_MMCSD 1 /* Assume that we have SD support */
#define STM32_MMCSDSLOTNO 0 /* There is only one slot */
/* Can't support MMC/SD features if the SDIO peripheral is disabled */
#ifndef CONFIG_STM32_SDIO
# undef HAVE_MMCSD
#endif
/* Can't support MMC/SD features if mountpoints are disabled */
#ifdef CONFIG_DISABLE_MOUNTPOINT
# undef HAVE_MMCSD
#endif
/****************************************************************************
* Public Functions
****************************************************************************/
/****************************************************************************
* Name: stm32_sdinitialize
*
* Description:
* Initialize the SPI-based SD card. Requires CONFIG_DISABLE_MOUNTPOINT=n
* and CONFIG_STM32_SDIO=y
*
****************************************************************************/
int stm32_sdinitialize(int minor)
{
#ifdef HAVE_MMCSD
FAR struct sdio_dev_s *sdio;
int ret;
/* Configure the card-detect GPIO */
#warning REVISIT: Missing logic
/* First, get an instance of the SDIO interface */
sdio = sdio_initialize(STM32_MMCSDSLOTNO);
if (!sdio)
{
fdbg("Failed to initialize SDIO slot %d\n", STM32_MMCSDSLOTNO);
return -ENODEV;
}
fvdbg("Initialized SDIO slot %d\n", STM32_MMCSDSLOTNO);
/* Now bind the SDIO interface to the MMC/SD driver */
ret = mmcsd_slotinitialize(minor, sdio);
if (ret != OK)
{
fdbg("Failed to bind SDIO slot %d to the MMC/SD driver, minor=%d\n",
STM32_MMCSDSLOTNO, minor);
}
fvdbg("Bound SDIO slot %d to the MMC/SD driver, minor=%d\n",
STM32_MMCSDSLOTNO, minor);
/* Then let's guess and say that there is a card in the slot. I need to check to
* see if the M3 Wildfire board supports a GPIO to detect if there is a card in
* the slot.
*/
#warning REVISIT: Need to read the current state of the card-detect pin
#warning REVISIT: Need to support interrupts from the card-detect pin
sdio_mediachange(sdio, true);
#endif
return OK;
}
#endif /* CONFIG_ARCH_CHIP_STM32F103VC */
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