123 lines
4.2 KiB
C
123 lines
4.2 KiB
C
/****************************************************************************
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* config/fire-stm32v2/src/stm32_mmcsd.c
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*
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* Copyright (C) 2012 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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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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*
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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
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name NuttX nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* 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 OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* 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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****************************************************************************/
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/****************************************************************************
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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <stdio.h>
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#include <debug.h>
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#include <errno.h>
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#include <nuttx/sdio.h>
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#include <nuttx/mmcsd.h>
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#include "stm32_sdio.h"
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#include "fire-internal.h"
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/****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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/* Configuration ************************************************************/
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#define HAVE_MMCSD 1 /* Assume that we have SD support */
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#define STM32_MMCSDSLOTNO 0 /* There is only one slot */
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/* Can't support MMC/SD features if the SDIO peripheral is disabled */
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#ifndef CONFIG_STM32_SDIO
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# undef HAVE_MMCSD
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#endif
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/* Can't support MMC/SD features if mountpoints are disabled */
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#ifdef CONFIG_DISABLE_MOUNTPOINT
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# undef HAVE_MMCSD
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#endif
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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: stm32_sdinitialize
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*
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* Description:
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* Initialize the SPI-based SD card. Requires CONFIG_DISABLE_MOUNTPOINT=n
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* and CONFIG_STM32_SDIO=y
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*
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****************************************************************************/
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int stm32_sdinitialize(int minor)
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{
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#ifdef HAVE_MMCSD
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FAR struct sdio_dev_s *sdio;
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int ret;
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/* First, get an instance of the SDIO interface */
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sdio = sdio_initialize(STM32_MMCSDSLOTNO);
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if (!sdio)
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{
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fdbg("Failed to initialize SDIO slot %d\n", STM32_MMCSDSLOTNO);
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return -ENODEV;
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}
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fvdbg("Initialized SDIO slot %d\n", STM32_MMCSDSLOTNO);
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/* Now bind the SDIO interface to the MMC/SD driver */
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ret = mmcsd_slotinitialize(minor, sdio);
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if (ret != OK)
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{
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fdbg("Failed to bind SDIO slot %d to the MMC/SD driver, minor=%d\n",
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STM32_MMCSDSLOTNO, minor);
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}
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fvdbg("Bound SDIO slot %d to the MMC/SD driver, minor=%d\n",
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STM32_MMCSDSLOTNO, minor);
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/* Then let's guess and say that there is a card in the slot. I need to check to
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* see if the M3 Wildfire board supports a GPIO to detect if there is a card in
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* the slot.
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*/
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sdio_mediachange(sdio, true);
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#endif
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return OK;
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}
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