diff options
Diffstat (limited to 'apps/system/sdcard/sdcard.c')
| -rw-r--r-- | apps/system/sdcard/sdcard.c | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/apps/system/sdcard/sdcard.c b/apps/system/sdcard/sdcard.c new file mode 100644 index 000000000..56ab74f44 --- /dev/null +++ b/apps/system/sdcard/sdcard.c @@ -0,0 +1,161 @@ +/**************************************************************************** + * apps/system/sdcard/sdcard.c + * + * Copyright (C) 2011 Uros Platise. All rights reserved. + * Copyright (C) 2009 Gregory Nutt. All rights reserved. + * + * Authors: Uros Platise <uros.platise@isotel.eu> + * Gregory Nutt <gnutt@nuttx.org> + * + * 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 <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <errno.h> + +#ifdef CONFIG_STM32_SDIO +# include <nuttx/sdio.h> +# include <nuttx/mmcsd.h> +#endif + +/**************************************************************************** + * Public Function Prototypes + ****************************************************************************/ + +FAR struct sdio_dev_s *sdio_initialize(int slotno); +void sdio_mediachange(FAR struct sdio_dev_s *dev, bool cardinslot); + +// TODO get the structure out from the slot number +static FAR struct sdio_dev_s *sdio = NULL; + +/**************************************************************************** + * Private Functions + ****************************************************************************/ + +/* Create device device for the SDIO-based MMC/SD block driver */ + +static int sdcard_start(int slotno) +{ + int ret; + + /* First, get an instance of the SDIO interface */ + + sdio = sdio_initialize(slotno); + if (!sdio) + { + printf("SDIO: Failed to initialize slot %d\n", slotno); + return -ENODEV; + } + + printf("SDIO: Initialized slot %d\n", slotno); + + /* Now bind the SPI interface to the MMC/SD driver */ + + ret = mmcsd_slotinitialize(slotno, sdio); + if (ret != OK) + { + printf("SDIO: Failed to bind to the MMC/SD driver: %d\n", ret); + return ret; + } + + printf("SDIO: Successfully bound 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 VSN board supports a GPIO to detect if there is a card in + * the slot. + */ + sdio_mediachange(sdio, true); + + return OK; +} + +/**************************************************************************** + * Public Functions + ****************************************************************************/ + +int sdcard_main(int argc, char *argv[]) +{ + int slotno = 0; + + if (argc >= 2) { + + /* The 3rd argument is expected to be a slot number, if given */ + + if (argc==3) + { + slotno = atoi(argv[2]); + } + + /* Commands */ + + if (!strcmp(argv[1], "start")) + { + return sdcard_start(slotno); + } + else if (!strcmp(argv[1], "stop")) + { + fprintf(stderr, "Not implemented yet\n"); + } + else if (!strcmp(argv[1], "insert")) + { + if (sdio) + { + sdio_mediachange(sdio, true); + return OK; + } + } + else if (!strcmp(argv[1], "eject")) + { + if (sdio) + { + sdio_mediachange(sdio, false); + return OK; + } + } + else if (!strcmp(argv[1], "status")) + { + printf("SDcard #%d Status:\n", slotno); +#ifndef CONFIG_MMCSD_HAVECARDDETECT + printf("\t - Without SDcard detect capability\n"); +#endif + return 0; + } + } + + printf("%s: <start|stop|insert|eject|status> {slotno}\n", argv[0]); + return -1; +} |