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