diff options
Diffstat (limited to 'nuttx/configs/fire-stm32v2/src/up_mmcsd.c')
-rw-r--r-- | nuttx/configs/fire-stm32v2/src/up_mmcsd.c | 122 |
1 files changed, 122 insertions, 0 deletions
diff --git a/nuttx/configs/fire-stm32v2/src/up_mmcsd.c b/nuttx/configs/fire-stm32v2/src/up_mmcsd.c new file mode 100644 index 000000000..d3fa611bd --- /dev/null +++ b/nuttx/configs/fire-stm32v2/src/up_mmcsd.c @@ -0,0 +1,122 @@ +/**************************************************************************** + * config/fire-stm32v2/src/up_mmcsd.c + * arch/arm/src/board/up_mmcsd.c + * + * Copyright (C) 2012 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 "fire-internal.h" + +/**************************************************************************** + * 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 */ + +#ifndef 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_SPI1=y + * + ****************************************************************************/ + +int stm32_sdinitialize(int minor) +{ +#ifdef HAVE_MMCSD + FAR struct sdio_dev_s *sdio; + int ret; + + /* First, get an instance of the SDIO interface */ + + sdio = sdio_initialize(STM32_MMCSDSLOTNO); + if (!sdio) + { + message("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) + { + message("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. + */ + + sdio_mediachange(sdio, true); +#endif + return OK; +} |