diff options
Diffstat (limited to 'nuttx/configs/sam3u-ek/src/up_usbstrg.c')
-rwxr-xr-x | nuttx/configs/sam3u-ek/src/up_usbstrg.c | 152 |
1 files changed, 152 insertions, 0 deletions
diff --git a/nuttx/configs/sam3u-ek/src/up_usbstrg.c b/nuttx/configs/sam3u-ek/src/up_usbstrg.c new file mode 100755 index 000000000..e758e3b91 --- /dev/null +++ b/nuttx/configs/sam3u-ek/src/up_usbstrg.c @@ -0,0 +1,152 @@ +/**************************************************************************** + * configs/sam3u-ek/src/up_usbstrg.c + * + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * Configure and register the SAM3U MMC/SD SDIO 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/sdio.h> +#include <nuttx/mmcsd.h> + +#include "sam3u_internal.h" + +#ifdef CONFIG_SAM3U_SDIO + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/* Configuration ************************************************************/ + +#ifndef CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 +# define CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 0 +#endif + +/* SLOT number(s) could depend on the board configuration */ + +#ifdef CONFIG_ARCH_BOARD_SAM3U10E_EVAL +# undef SAM3U_MMCSDSLOTNO +# define SAM3U_MMCSDSLOTNO 0 +#else + /* Add configuration for new SAM3U boards here */ +# error "Unrecognized SAM3U 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: usbstrg_archinitialize + * + * Description: + * Perform architecture specific initialization + * + ****************************************************************************/ + +int usbstrg_archinitialize(void) +{ + FAR struct sdio_dev_s *sdio; + int ret; + + /* First, get an instance of the SDIO interface */ + + message("usbstrg_archinitialize: " + "Initializing SDIO slot %d\n", + SAM3U_MMCSDSLOTNO); + + sdio = sdio_initialize(SAM3U_MMCSDSLOTNO); + if (!sdio) + { + message("usbstrg_archinitialize: Failed to initialize SDIO slot %d\n", + SAM3U_MMCSDSLOTNO); + return -ENODEV; + } + + /* Now bind the SPI interface to the MMC/SD driver */ + + message("usbstrg_archinitialize: " + "Bind SDIO to the MMC/SD driver, minor=%d\n", + CONFIG_EXAMPLES_USBSTRG_DEVMINOR1); + + ret = mmcsd_slotinitialize(CONFIG_EXAMPLES_USBSTRG_DEVMINOR1, sdio); + if (ret != OK) + { + message("usbstrg_archinitialize: " + "Failed to bind SDIO to the MMC/SD driver: %d\n", + ret); + return ret; + } + message("usbstrg_archinitialize: " + "Successfully bound SDIO to the MMC/SD driver\n"); + + /* Then let's guess and say that there is a card in the slot. I need to check to + * see if the SAM3U10E-EVAL board supports a GPIO to detect if there is a card in + * the slot. + */ + + sdio_mediachange(sdio, true); + return OK; +} + +#endif /* CONFIG_SAM3U_SDIO */ |