125 lines
4.0 KiB
C
125 lines
4.0 KiB
C
/****************************************************************************
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* boards/arm/imxrt/imxrt1064-evk/src/imxrt_mmcsd_spi.c
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed with
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* this work for additional information regarding copyright ownership. The
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* ASF licenses this file to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance with the
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* License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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* License for the specific language governing permissions and limitations
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* under the License.
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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 <debug.h>
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#include <nuttx/config.h>
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#include <nuttx/mmcsd.h>
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#include <stdint.h>
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#include <stdbool.h>
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#include <nuttx/spi/spi.h>
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#include <arch/board/board.h>
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#include "arm_internal.h"
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#include "chip.h"
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#include "imxrt_lpspi.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_IMXRT_LPSPI1
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# error "SD driver requires CONFIG_IMXRT_LPSPI1 to be enabled"
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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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/****************************************************************************
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* Private Definitions
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****************************************************************************/
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static const int SD_SPI_PORT = CONFIG_NSH_MMCSDSPIPORTNO; /* SD is connected
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* to SPI1 port
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*/
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static const int SD_SLOT_NO = 0; /* There is only one SD slot */
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/****************************************************************************
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* Private Functions
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****************************************************************************/
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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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/****************************************************************************
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* Public Functions
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****************************************************************************/
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/****************************************************************************
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* Name: imxrt_spi1register
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*
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* Description:
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* Registers media change callback
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****************************************************************************/
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#ifdef CONFIG_IMXRT_LPSPI1
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int imxrt_lpspi1register(struct spi_dev_s *dev, spi_mediachange_t callback,
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void *arg)
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{
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spiinfo("INFO: Registering spi1 device\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: imxrt_mmcsd_spi_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 imxrt_mmcsd_spi_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 = imxrt_lpspibus_initialize(SD_SPI_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", SD_SPI_PORT);
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return -ENODEV;
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}
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rv = mmcsd_spislotinitialize(minor, SD_SLOT_NO, 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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SD_SPI_PORT, SD_SLOT_NO);
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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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