125 lines
4.3 KiB
C
125 lines
4.3 KiB
C
/****************************************************************************
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* configs/nucleus2g/src/lpc17_usbmsc.c
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*
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* Copyright (C) 2010, 2013 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <gnutt@nuttx.org>
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*
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* Configure and register the LPC17xx MMC/SD SPI block driver.
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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 <syslog.h>
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#include <errno.h>
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#include <nuttx/spi/spi.h>
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#include <nuttx/mmcsd.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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#ifndef CONFIG_SYSTEM_USBMSC_DEVMINOR1
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# define CONFIG_SYSTEM_USBMSC_DEVMINOR1 0
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#endif
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/* PORT and SLOT number probably depend on the board configuration */
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#ifdef CONFIG_ARCH_BOARD_NUCLEUS2G
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# undef LPC17XX_MMCSDSPIPORTNO
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# define LPC17XX_MMCSDSPIPORTNO 1
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# undef LPC17XX_MMCSDSLOTNO
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# define LPC17XX_MMCSDSLOTNO 0
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#else
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/* Add configuration for new LPC17xx boards here */
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# error "Unrecognized LPC17xx board"
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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: usbmsc_archinitialize
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*
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* Description:
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* Perform architecture specific initialization
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*
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****************************************************************************/
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int usbmsc_archinitialize(void)
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{
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FAR struct spi_dev_s *spi;
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int ret;
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/* Get the SPI port */
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syslog(LOG_INFO, "Initializing SPI port %d\n",
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LPC17XX_MMCSDSPIPORTNO);
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spi = lpc17_sspinitialize(LPC17XX_MMCSDSPIPORTNO);
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if (!spi)
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{
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syslog(LOG_ERR, "ERROR: Failed to initialize SPI port %d\n",
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LPC17XX_MMCSDSPIPORTNO);
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return -ENODEV;
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}
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syslog(LOG_INFO, "Successfully initialized SPI port %d\n",
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LPC17XX_MMCSDSPIPORTNO);
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/* Bind the SPI port to the slot */
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syslog(LOG_INFO, "Binding SPI port %d to MMC/SD slot %d\n",
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LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO);
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ret = mmcsd_spislotinitialize(CONFIG_SYSTEM_USBMSC_DEVMINOR1,
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LPC17XX_MMCSDSLOTNO, spi);
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if (ret < 0)
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{
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syslog(LOG_ERR,
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"ERROR: Failed to bind SPI port %d to MMC/SD slot %d: %d\n",
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LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO, ret);
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return ret;
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}
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syslog(LOG_INFO, "Successfully bound SPI port %d to MMC/SD slot %d\n",
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LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO);
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return OK;
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}
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