0bf49338d8
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3150 42af7a65-404d-4744-a932-0658087f49c3
157 lines
5.2 KiB
C
Executable File
157 lines
5.2 KiB
C
Executable File
/****************************************************************************
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* configs/olimex-lpc1766stk/src/up_usbstrg.c
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*
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* Copyright (C) 2010 Gregory Nutt. All rights reserved.
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* Author: Gregory Nutt <spudmonkey@racsa.co.cr>
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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 <debug.h>
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#include <errno.h>
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#include <nuttx/spi.h>
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#include <nuttx/mmcsd.h>
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#include "lpc17_internal.h"
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#include "lpc1766stk_internal.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_EXAMPLES_USBSTRG_DEVMINOR1
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# define CONFIG_EXAMPLES_USBSTRG_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_LPC1766STK
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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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/* Debug ********************************************************************/
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#ifdef CONFIG_CPP_HAVE_VARARGS
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# ifdef CONFIG_DEBUG
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# define message(...) lib_lowprintf(__VA_ARGS__)
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# define msgflush()
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# else
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# define message(...) printf(__VA_ARGS__)
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# define msgflush() fflush(stdout)
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# endif
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#else
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# ifdef CONFIG_DEBUG
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# define message lib_lowprintf
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# define msgflush()
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# else
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# define message printf
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# define msgflush() fflush(stdout)
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# endif
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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: usbstrg_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 usbstrg_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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/* Enable power to the SD/MMC via a GPIO. LOW enables SD/MMC. */
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lpc17_gpiowrite(LPC1766STK_MMC_PWR, false);
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/* Get the SPI port */
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message("usbstrg_archinitialize: Initializing SPI port %d\n",
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LPC17XX_MMCSDSPIPORTNO);
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spi = up_spiinitialize(LPC17XX_MMCSDSPIPORTNO);
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if (!spi)
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{
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message("usbstrg_archinitialize: Failed to initialize SPI port %d\n",
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LPC17XX_MMCSDSPIPORTNO);
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ret = -ENODEV;
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goto errout;
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}
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message("usbstrg_archinitialize: 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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message("usbstrg_archinitialize: 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_EXAMPLES_USBSTRG_DEVMINOR1, LPC17XX_MMCSDSLOTNO, spi);
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if (ret < 0)
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{
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message("usbstrg_archinitialize: 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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goto errout;
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}
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message("usbstrg_archinitialize: Successfuly 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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/* Disable power to the SD/MMC via a GPIO. HIGH disables SD/MMC. */
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errout:
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lpc17_gpiowrite(LPC1766STK_MMC_PWR, true);
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return ret;}
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