diff options
Diffstat (limited to 'nuttx/configs/nucleus2g/src/up_usbstrg.c')
-rwxr-xr-x | nuttx/configs/nucleus2g/src/up_usbstrg.c | 143 |
1 files changed, 143 insertions, 0 deletions
diff --git a/nuttx/configs/nucleus2g/src/up_usbstrg.c b/nuttx/configs/nucleus2g/src/up_usbstrg.c new file mode 100755 index 000000000..849611440 --- /dev/null +++ b/nuttx/configs/nucleus2g/src/up_usbstrg.c @@ -0,0 +1,143 @@ +/**************************************************************************** + * configs/nucleus2g/src/up_usbstrg.c + * + * Copyright (C) 2010 Gregory Nutt. All rights reserved. + * Author: Gregory Nutt <spudmonkey@racsa.co.cr> + * + * 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> + +/**************************************************************************** + * Pre-Processor Definitions + ****************************************************************************/ + +/* Configuration ************************************************************/ + +#ifndef CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 +# define CONFIG_EXAMPLES_USBSTRG_DEVMINOR1 0 +#endif + +/* PORT and SLOT number probably depend on the board configuration */ + +#ifdef CONFIG_ARCH_BOARD_NUCLEUS2G +# 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: usbstrg_archinitialize + * + * Description: + * Perform architecture specific initialization + * + ****************************************************************************/ + +int usbstrg_archinitialize(void) +{ + FAR struct spi_dev_s *spi; + int ret; + + /* Get the SPI port */ + + message("usbstrg_archinitialize: Initializing SPI port %d\n", + LPC17XX_MMCSDSPIPORTNO); + + spi = up_spiinitialize(LPC17XX_MMCSDSPIPORTNO); + if (!spi) + { + message("usbstrg_archinitialize: Failed to initialize SPI port %d\n", + LPC17XX_MMCSDSPIPORTNO); + return -ENODEV; + } + + message("usbstrg_archinitialize: Successfully initialized SPI port %d\n", + LPC17XX_MMCSDSPIPORTNO); + + /* Bind the SPI port to the slot */ + + message("usbstrg_archinitialize: Binding SPI port %d to MMC/SD slot %d\n", + LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO); + + ret = mmcsd_spislotinitialize(CONFIG_EXAMPLES_USBSTRG_DEVMINOR1, LPC17XX_MMCSDSLOTNO, spi); + if (ret < 0) + { + message("usbstrg_archinitialize: Failed to bind SPI port %d to MMC/SD slot %d: %d\n", + LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO, ret); + return ret; + } + + message("usbstrg_archinitialize: Successfuly bound SPI port %d to MMC/SD slot %d\n", + LPC17XX_MMCSDSPIPORTNO, LPC17XX_MMCSDSLOTNO); + return OK; +} |