You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
156 lines
5.2 KiB
156 lines
5.2 KiB
/**************************************************************************** |
|
* configs/olimex-lpc1766stk/src/up_usbmsc.c |
|
* |
|
* Copyright (C) 2010 Gregory Nutt. All rights reserved. |
|
* Author: Gregory Nutt <gnutt@nuttx.org> |
|
* |
|
* Configure and register the LPC17xx MMC/SD SPI block driver. |
|
* |
|
* 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 <nuttx/config.h> |
|
|
|
#include <stdio.h> |
|
#include <debug.h> |
|
#include <errno.h> |
|
|
|
#include <nuttx/spi.h> |
|
#include <nuttx/mmcsd.h> |
|
|
|
#include "lpc17_internal.h" |
|
#include "lpc1766stk_internal.h" |
|
|
|
/**************************************************************************** |
|
* Pre-Processor Definitions |
|
****************************************************************************/ |
|
|
|
/* Configuration ************************************************************/ |
|
|
|
#ifndef CONFIG_EXAMPLES_USBMSC_DEVMINOR1 |
|
# define CONFIG_EXAMPLES_USBMSC_DEVMINOR1 0 |
|
#endif |
|
|
|
/* PORT and SLOT number probably depend on the board configuration */ |
|
|
|
#ifdef CONFIG_ARCH_BOARD_LPC1766STK |
|
# undef LPC17XX_MMCSDSPIPORTNO |
|
# define LPC17XX_MMCSDSPIPORTNO 1 |
|
# undef LPC17XX_MMCSDSLOTNO |
|
# define LPC17XX_MMCSDSLOTNO 0 |
|
#else |
|
/* Add configuration for new LPC17xx boards here */ |
|
# error "Unrecognized LPC17xx board" |
|
#endif |
|
|
|
/* Debug ********************************************************************/ |
|
|
|
#ifdef CONFIG_CPP_HAVE_VARARGS |
|
# ifdef CONFIG_DEBUG |
|
# define message(...) lib_lowprintf(__VA_ARGS__) |
|
# define msgflush() |
|
# else |
|
# define message(...) printf(__VA_ARGS__) |
|
# define msgflush() fflush(stdout) |
|
# endif |
|
#else |
|
# ifdef CONFIG_DEBUG |
|
# define message lib_lowprintf |
|
# define msgflush() |
|
# else |
|
# define message printf |
|
# define msgflush() fflush(stdout) |
|
# endif |
|
#endif |
|
|
|
|
|
/**************************************************************************** |
|
* Public Functions |
|
****************************************************************************/ |
|
|
|
/**************************************************************************** |
|
* Name: usbmsc_archinitialize |
|
* |
|
* Description: |
|
* Perform architecture specific initialization |
|
* |
|
****************************************************************************/ |
|
|
|
int usbmsc_archinitialize(void) |
|
{ |
|
FAR struct spi_dev_s *spi; |
|
int ret; |
|
|
|
/* Enable power to the SD/MMC via a GPIO. LOW enables SD/MMC. */ |
|
|
|
lpc17_gpiowrite(LPC1766STK_MMC_PWR, false); |
|
|
|
/* Get the SPI port */ |
|
|
|
message("usbmsc_archinitialize: Initializing SPI port %d\n", |
|
LPC17XX_MMCSDSPIPORTNO); |
|
|
|
spi = up_spiinitialize(LPC17XX_MMCSDSPIPORTNO); |
|
if (!spi) |
|
{ |
|
message("usbmsc_archinitialize: Failed to initialize SPI port %d\n", |
|
LPC17XX_MMCSDSPIPORTNO); |
|
ret = -ENODEV; |
|
goto errout; |
|
} |
|
|
|
message("usbmsc_archinitialize: Successfully initialized SPI port %d\n", |
|
LPC17XX_MMCSDSPIPORTNO); |
|
|
|
/* Bind the SPI port to the slot */ |
|
|
|
message("usbmsc_archinitialize: Binding SPI port %d to MMC/SD slot %d\n", |
|
LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO); |
|
|
|
ret = mmcsd_spislotinitialize(CONFIG_EXAMPLES_USBMSC_DEVMINOR1, LPC17XX_MMCSDSLOTNO, spi); |
|
if (ret < 0) |
|
{ |
|
message("usbmsc_archinitialize: Failed to bind SPI port %d to MMC/SD slot %d: %d\n", |
|
LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO, ret); |
|
goto errout; |
|
} |
|
|
|
message("usbmsc_archinitialize: Successfuly bound SPI port %d to MMC/SD slot %d\n", |
|
LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO); |
|
return OK; |
|
|
|
/* Disable power to the SD/MMC via a GPIO. HIGH disables SD/MMC. */ |
|
|
|
errout: |
|
lpc17_gpiowrite(LPC1766STK_MMC_PWR, true); |
|
return ret;}
|
|
|