/**************************************************************************** * configs/teensy/src/up_usbmsc.c * arch/arm/src/board/up_usbmsc.c * * Copyright (C) 2011 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * Configure and register the AVR 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 #include #include #include #include #include #include "at90usb_internal.h" #include "teensy_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_TEENSY # undef AVR_MMCSDSPIPORTNO # define AVR_MMCSDSPIPORTNO 0 # undef AVR_MMCSDSLOTNO # define AVR_MMCSDSLOTNO 0 #else /* Add configuration for new AVR boards here */ # error "Unrecognized AVR 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; /* Get the SPI port */ message("Initializing SPI port\n"); spi = up_spiinitialize(AVR_MMCSDSPIPORTNO); if (!spi) { message("up_spiinitialize failed\n"); return -ENODEV; } /* Bind the SPI port to the slot */ message("Binding SPI port to MMC/SD slot\n"); ret = mmcsd_spislotinitialize(CONFIG_EXAMPLES_USBMSC_DEVMINOR1, AVR_MMCSDSLOTNO, spi); if (ret < 0) { message("mmcsd_spislotinitialize failed: %d\n", ret); return ret; } return OK; }