152 lines
4.8 KiB
C
152 lines
4.8 KiB
C
/*****************************************************************************
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* configs/max32660-evsys/src/max326_mmcsd.c
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*
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* Copyright (C) 2018 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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* Included Files
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****************************************************************************/
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#include <nuttx/config.h>
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#include <unistd.h>
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#include <sched.h>
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#include <semaphore.h>
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#include <time.h>
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#include <debug.h>
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#include <nuttx/config.h>
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#include <nuttx/mmcsd.h>
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#include <nuttx/spi/spi.h>
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#include "max326_spim.h"
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#ifdef CONFIG_MMCSD_SPI
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/*****************************************************************************
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* Pre-processor Definitions
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****************************************************************************/
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#ifndef CONFIG_MAX326XX_HAVE_SPIM
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# error "SD driver requires SPI master mode support"
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#endif
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#ifdef CONFIG_DISABLE_MOUNTPOINT
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# error "SD driver requires CONFIG_DISABLE_MOUNTPOINT to be disabled"
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#endif
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#if defined(CONFIG_MAX326XX_SPIM0)
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# define MMCSD_PORT 0
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#elif defined(CONFIG_MAX326XX_SPIM1)
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# define MMCSD_PORT 1
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#endif
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#define MMCSD_SLOT 0
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/*****************************************************************************
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* Private Functions
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****************************************************************************/
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#ifndef MICROSD_CD
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/* NOTE: We are using a SDCard adapter/module without Card Detect pin!
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* Then we don't need to Card Detect callback here.
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*/
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#ifdef CONFIG_MMCSD_HAVE_CARDDETECT
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# error "No card detect pin"
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#endif
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#else
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# error "Missing card detect logic"
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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: max326_spiregister
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*
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* Description:
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* Media change callback
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*
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****************************************************************************/
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#ifdef CONFIG_SPI_CALLBACK
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#if defined(CONFIG_MAX326XX_SPIM0)
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int max326_spi0register(struct spi_dev_s *dev, spi_mediachange_t callback,
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void *arg)
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#elif defined(CONFIG_MAX326XX_SPIM1)
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int max326_spi1register(struct spi_dev_s *dev, spi_mediachange_t callback,
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void *arg)
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#endif
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{
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spiinfo("INFO: SPI callback\n");
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return OK;
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}
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#endif
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/*****************************************************************************
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* Name: max326_mmcsd_initialize
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*
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* Description:
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* Initialize SPI-based SD card and card detect thread.
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*
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****************************************************************************/
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int max326_mmcsd_initialize(int minor)
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{
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struct spi_dev_s *spi;
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int rv;
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mcinfo("INFO: Initializing mmcsd card\n");
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spi = max326_spibus_initialize(MMCSD_PORT);
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if (spi == NULL)
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{
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mcerr("ERROR: Failed to initialize SPI port %d\n", MMCSD_PORT);
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return -ENODEV;
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}
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rv = mmcsd_spislotinitialize(minor, MMCSD_SLOT, spi);
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if (rv < 0)
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{
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mcerr("ERROR: Failed to bind SPI port %d to SD slot %d\n",
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MMCSD_PORT, MMCSD_SLOT);
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return rv;
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}
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spiinfo("INFO: mmcsd card has been initialized successfully\n");
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return OK;
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}
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#endif /* CONFIG_MMCSD_SPI */
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