/**************************************************************************** * config/pic32-starterkit/src/up_nsh.c * arch/arm/src/board/up_nsh.c * * Copyright (C) 2011 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 "pic32mx-internal.h" #include "starterkit_internal.h" /**************************************************************************** * Pre-Processor Definitions ****************************************************************************/ /* Configuration ************************************************************/ /* Assume that we have MMC/SD, USB host (and USB device) */ #define CONFIG_NSH_HAVEMMCSD 1 #define CONFIG_NSH_HAVEUSBHOST 1 /* The PIC32 Ethernet Starter Kit does not have an SD slot on board. If one * is added, then it must be specified by defining which SPI bus that it * is connected on. */ #ifndef CONFIG_PIC32MX_MMCSDSPIPORTNO # undef CONFIG_NSH_HAVEMMCSD #endif /* Make sure that the configuration will support the SD card */ #ifdef CONFIG_NSH_HAVEMMCSD /* Make sure that the NSH configuration uses the correct SPI */ # if !defined(CONFIG_NSH_MMCSDSPIPORTNO) # define CONFIG_NSH_MMCSDSPIPORTNO CONFIG_PIC32MX_MMCSDSPIPORTNO # elif CONFIG_NSH_MMCSDSPIPORTNO != CONFIG_PIC32MX_MMCSDSPIPORTNO # warning "CONFIG_PIC32MX_MMCSDSPIPORTNO does not match CONFIG_NSH_MMCSDSPIPORTNO" # undef CONFIG_NSH_MMCSDSPIPORTNO # define CONFIG_NSH_MMCSDSPIPORTNO CONFIG_PIC32MX_MMCSDSPIPORTNO # endif /* Make sure that the NSH configuration uses the slot */ # if !defined(CONFIG_NSH_MMCSDSLOTNO) || CONFIG_NSH_MMCSDSLOTNO != 0 # warning "The PIC32 Starter Kit has only one slot (0)" # undef CONFIG_NSH_MMCSDSLOTNO # define CONFIG_NSH_MMCSDSLOTNO 0 # endif /* Make sure that the correct SPI is enabled in the configuration */ # if CONFIG_PIC32MX_MMCSDSPIPORTNO == 1 && !defined(CONFIG_PIC32MX_SPI1) # warning "CONFIG_PIC32MX_SPI1 is not enabled" # undef CONFIG_NSH_HAVEMMCSD # elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 2 && !defined(CONFIG_PIC32MX_SPI2) # warning "CONFIG_PIC32MX_SPI2 is not enabled" # undef CONFIG_NSH_HAVEMMCSD # elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 3 && !defined(CONFIG_PIC32MX_SPI3) # warning "CONFIG_PIC32MX_SPI3 is not enabled" # undef CONFIG_NSH_HAVEMMCSD # elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 4 && !defined(CONFIG_PIC32MX_SPI4) # warning "CONFIG_PIC32MX_SPI4 is not enabled" # undef CONFIG_NSH_HAVEMMCSD # endif #endif /* Can't support MMC/SD features if mountpoints are disabled */ #if defined(CONFIG_DISABLE_MOUNTPOINT) # undef CONFIG_NSH_HAVEMMCSD #endif /* Select /dev/mmcsd0 if no other minor number is provided */ #ifndef CONFIG_NSH_MMCSDMINOR # define CONFIG_NSH_MMCSDMINOR 0 #endif /* USB Host */ #ifdef CONFIG_USBHOST # ifndef CONFIG_PIC32MX_USBHOST # error "CONFIG_PIC32MX_USBHOST is not selected" # undef CONFIG_NSH_HAVEUSBHOST # endif #endif #ifdef CONFIG_PIC32MX_USBHOST # ifndef CONFIG_USBHOST # warning "CONFIG_USBHOST is not selected" # undef CONFIG_NSH_HAVEUSBHOST # endif #endif #if !defined(CONFIG_USBHOST) || !defined(CONFIG_PIC32MX_USBHOST) # undef CONFIG_NSH_HAVEUSBHOST #endif #ifdef CONFIG_NSH_HAVEUSBHOST # ifndef CONFIG_USBHOST_DEFPRIO # define CONFIG_USBHOST_DEFPRIO 50 # endif # ifndef CONFIG_USBHOST_STACKSIZE # define CONFIG_USBHOST_STACKSIZE 1024 # endif #endif /* Debug ********************************************************************/ #ifdef CONFIG_CPP_HAVE_VARARGS # ifdef CONFIG_DEBUG # define message(...) lib_lowprintf(__VA_ARGS__) # else # define message(...) printf(__VA_ARGS__) # endif #else # ifdef CONFIG_DEBUG # define message lib_lowprintf # else # define message printf # endif #endif /**************************************************************************** * Private Data ****************************************************************************/ #ifdef CONFIG_NSH_HAVEUSBHOST static struct usbhost_driver_s *g_drvr; #endif /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: nsh_waiter * * Description: * Wait for USB devices to be connected. * ****************************************************************************/ #ifdef CONFIG_NSH_HAVEUSBHOST 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 = DRVR_WAIT(g_drvr, 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)DRVR_ENUMERATE(g_drvr); } } /* Keep the compiler from complaining */ return 0; } #endif /**************************************************************************** * Name: nsh_sdinitialize * * Description: * Initialize SPI-based microSD. * ****************************************************************************/ #ifdef CONFIG_NSH_HAVEMMCSD static int nsh_sdinitialize(void) { FAR struct spi_dev_s *ssp; int ret; /* Get the SPI port */ ssp = up_spiinitialize(CONFIG_NSH_MMCSDSPIPORTNO); if (!ssp) { message("nsh_archinitialize: Failed to initialize SPI port %d\n", CONFIG_NSH_MMCSDSPIPORTNO); ret = -ENODEV; goto errout; } message("Successfully initialized SPI port %d\n", CONFIG_NSH_MMCSDSPIPORTNO); /* Bind the SPI port to the slot */ ret = mmcsd_spislotinitialize(CONFIG_NSH_MMCSDMINOR, CONFIG_NSH_MMCSDSLOTNO, ssp); if (ret < 0) { message("nsh_sdinitialize: " "Failed to bind SPI port %d to MMC/SD slot %d: %d\n", CONFIG_NSH_MMCSDSPIPORTNO, CONFIG_NSH_MMCSDSLOTNO, ret); goto errout; } message("Successfuly bound SPI port %d to MMC/SD slot %d\n", CONFIG_NSH_MMCSDSPIPORTNO, CONFIG_NSH_MMCSDSLOTNO); return OK; errout: return ret; } #else # define nsh_sdinitialize() (OK) #endif /**************************************************************************** * Name: nsh_usbhostinitialize * * Description: * Initialize SPI-based microSD. * ****************************************************************************/ #ifdef CONFIG_NSH_HAVEUSBHOST 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_drvr = usbhost_initialize(0); if (g_drvr) { /* Start a thread to handle device connection. */ message("nsh_usbhostinitialize: Start nsh_waiter\n"); #ifndef CONFIG_CUSTOM_STACK pid = task_create("usbhost", CONFIG_USBHOST_DEFPRIO, CONFIG_USBHOST_STACKSIZE, (main_t)nsh_waiter, (const char **)NULL); #else pid = task_create("usbhost", CONFIG_USBHOST_DEFPRIO, (main_t)nsh_waiter, (const char **)NULL); #endif return pid < 0 ? -ENOEXEC : OK; } return -ENODEV; } #else # define nsh_usbhostinitialize() (OK) #endif /**************************************************************************** * Name: nsh_usbdevinitialize * * Description: * Initialize SPI-based microSD. * ****************************************************************************/ #ifdef CONFIG_USBDEV static int nsh_usbdevinitialize(void) { /* The PIC32 Starter Kit has no way to know when the USB is connected. So * we will fake it and tell the USB driver that the USB is connected now. */ pic32mx_usbattach(); return OK; } #else # define nsh_usbdevinitialize() (OK) #endif /**************************************************************************** * Public Functions ****************************************************************************/ /**************************************************************************** * Name: nsh_archinitialize * * Description: * Perform architecture specific initialization * ****************************************************************************/ int nsh_archinitialize(void) { int ret; /* Initialize SPI-based microSD */ ret = nsh_sdinitialize(); if (ret == OK) { /* Initialize USB host */ ret = nsh_usbhostinitialize(); } if (ret == OK) { /* Initialize USB device */ ret = nsh_usbdevinitialize(); } return ret; }