/**************************************************************************** * config/open1788/src/lpc17_nsh.c * arch/arm/src/board/lpc17_nsh.c * * Copyright (C) 2013 Gregory Nutt. All rights reserved. * Author: Gregory Nutt * * 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 #include #include #include "lpc17_gpio.h" #include "lpc17_sdcard.h" #include "lpc17_usbhost.h" #include "open1788.h" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /* Configuration ************************************************************/ #define NSH_HAVE_MMCSD 1 #define NSH_HAVE_USBHOST 1 #define NSH_HAVE_USBHDEV 1 #undef NSH_HAVE_MMCSD_CD #undef NSH_HAVE_MMCSD_CDINT /* MMC/SD support */ #if !defined(CONFIG_LPC17_SDCARD) || !defined(CONFIG_MMCSD) && !defined(CONFIG_MMCD_SDIO) # undef NSH_HAVE_MMCSD #endif /* Can't support MMC/SD features if mountpoints are disabled */ #if defined(CONFIG_DISABLE_MOUNTPOINT) # undef NSH_HAVE_MMCSD #endif /* MMC/SD support requires that an SPI support is enabled and an SPI port is selected */ #ifdef NSH_HAVE_MMCSD # if !defined(CONFIG_NSH_MMCSDSLOTNO) # warning "Assuming slot MMC/SD slot 0" # define CONFIG_NSH_MMCSDSLOTNO 0 # endif #endif #ifdef NSH_HAVE_MMCSD # if !defined(CONFIG_NSH_MMCSDMINOR) # warning "Assuming /dev/mmcsd0" # define CONFIG_NSH_MMCSDMINOR 0 # endif #endif /* The SD card detect (CD) signal is on P0[13]. This signal is shared. It is also * used for MOSI1 and USB_UP_LED. The CD pin may be disconnected. There is a jumper * on board that enables the CD pin. */ #ifdef NSH_HAVE_MMCSD # ifdef CONFIG_MMCSD_HAVECARDDETECT # define NSH_HAVE_MMCSD_CD 1 # ifdef CONFIG_GPIO_IRQ # define NSH_HAVE_MMCSD_CDINT 1 # endif # endif #endif #if defined(NSH_HAVE_MMCSD_CD) && \ (defined(CONFIG_LPC17_SSP1) || defined(CONFIG_LPC17_USBDEV)) # warning "Use of SD Card Detect pin conflicts with SSP1 and/or USB device" #endif /* USB Host */ #ifndef CONFIG_USBHOST # undef NSH_HAVE_USBHOST #endif #ifndef CONFIG_LPC17_USBHOST # undef NSH_HAVE_USBHOST #endif #ifdef NSH_HAVE_USBHOST # ifndef CONFIG_USBHOST_DEFPRIO # define CONFIG_USBHOST_DEFPRIO 50 # endif # ifndef CONFIG_USBHOST_STACKSIZE # define CONFIG_USBHOST_STACKSIZE 1024 # endif #endif /* USB Device */ #ifndef CONFIG_USBDEV # undef NSH_HAVE_USBDEV #endif #ifndef CONFIG_LPC17_USBDEV # undef NSH_HAVE_USBDEV #endif /* Debug ********************************************************************/ #ifdef CONFIG_CPP_HAVE_VARARGS # if defined(CONFIG_DEBUG) || !defined(CONFIG_NSH_ARCHINIT) # define message(...) lowsyslog(__VA_ARGS__) # else # define message(...) printf(__VA_ARGS__) # endif #else # if defined(CONFIG_DEBUG) || !defined(CONFIG_NSH_ARCHINIT) # define message lowsyslog # else # define message printf # endif #endif /**************************************************************************** * Private Data ****************************************************************************/ #ifdef NSH_HAVE_USBHOST static struct usbhost_connection_s *g_usbconn; #endif #ifdef NSH_HAVE_MMCSD static FAR struct sdio_dev_s *g_sdiodev; #endif /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: nsh_waiter * * Description: * Wait for USB devices to be connected. * ****************************************************************************/ #ifdef NSH_HAVE_USBHOST static int nsh_waiter(int argc, char *argv[]) { bool connected = false; int ret; message("nsh_waiter: Running\n"); for (;;) { /* Wait for the device to change state */ ret = CONN_WAIT(g_usbconn, &connected); DEBUGASSERT(ret == OK); connected = !connected; message("nsh_waiter: %s\n", connected ? "connected" : "disconnected"); /* Did we just become connected? */ if (connected) { /* Yes.. enumerate the newly connected device */ (void)CONN_ENUMERATE(g_usbconn, 0); } } /* Keep the compiler from complaining */ return 0; } #endif /**************************************************************************** * Name: nsh_cdinterrupt * * Description: * Card detect interrupt handler. * ****************************************************************************/ #ifdef NSH_HAVE_MMCSD_CDINT static int nsh_cdinterrupt(int irq, FAR void *context) { static bool inserted = 0xff; /* Impossible value */ bool present; present = !lpc17_gpioread(GPIO_SD_CD); if (present != inserted) { sdio_mediachange(g_sdiodev, present); inserted = present; } return OK; } #endif /**************************************************************************** * Name: nsh_sdinitialize * * Description: * Initialize SPI-based microSD. * ****************************************************************************/ #ifdef NSH_HAVE_MMCSD static int nsh_sdinitialize(void) { int ret; #ifdef NSH_HAVE_MMCSD_CD /* Configure the SD card detect GPIO */ lpc17_configgpio(GPIO_SD_CD); /* Attach an interrupt handler to get notifications when a card is * inserted or deleted. */ #if NSH_HAVE_MMCSD_CDINT (void)irq_attach(LPC17_IRQ_P0p13, nsh_cdinterrupt); up_enable_irq(LPC17_IRQ_P0p13); #endif #endif /* First, get an instance of the SDIO interface */ g_sdiodev = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO); if (!g_sdiodev) { message("nsh_archinitialize: Failed to initialize SDIO slot %d\n", CONFIG_NSH_MMCSDSLOTNO); return -ENODEV; } /* Now bind the SDIO interface to the MMC/SD driver */ ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, g_sdiodev); if (ret != OK) { message("nsh_archinitialize: " "Failed to bind SDIO to the MMC/SD driver: %d\n", ret); return ret; } /* Check if there is a card in the slot and inform the SDCARD driver. If * we do not support the card detect, then let's assume that there is * one. */ #ifdef NSH_HAVE_MMCSD_CD sdio_mediachange(g_sdiodev, !lpc17_gpioread(GPIO_SD_CD)); #else sdio_mediachange(g_sdiodev, true); #endif return OK; } #else # define nsh_sdinitialize() (OK) #endif /**************************************************************************** * Name: nsh_usbhostinitialize * * Description: * Initialize SPI-based microSD. * ****************************************************************************/ #ifdef NSH_HAVE_USBHOST static int nsh_usbhostinitialize(void) { int pid; int ret; /* First, register all of the class drivers needed to support the drivers * that we care about: */ message("nsh_usbhostinitialize: Register class drivers\n"); ret = usbhost_storageinit(); if (ret != OK) { message("nsh_usbhostinitialize: Failed to register the mass storage class\n"); } /* Then get an instance of the USB host interface */ message("nsh_usbhostinitialize: Initialize USB host\n"); g_usbconn = lpc17_usbhost_initialize(0); if (g_usbconn) { /* Start a thread to handle device connection. */ message("nsh_usbhostinitialize: Start nsh_waiter\n"); pid = task_create("usbhost", CONFIG_USBHOST_DEFPRIO, CONFIG_USBHOST_STACKSIZE, (main_t)nsh_waiter, (FAR char * const *)NULL); return pid < 0 ? -ENOEXEC : OK; } return -ENODEV; } #else # define nsh_usbhostinitialize() (OK) #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nsh_archinitialize * * Description: * Perform architecture specific initialization for NSH. * * CONFIG_NSH_ARCHINIT=y : * Called from the NSH library * * CONFIG_BOARD_INITIALIZE=y, CONFIG_NSH_LIBRARY=y, && * CONFIG_NSH_ARCHINIT=n: * Called from board_initialize(). * ****************************************************************************/ int nsh_archinitialize(void) { int ret; /* Initialize SPI-based microSD */ ret = nsh_sdinitialize(); if (ret == OK) { /* Initialize USB host */ ret = nsh_usbhostinitialize(); } return ret; }