/**************************************************************************** * boards/mips/pic32mx/pic32mx7mmb/src/pic32_bringup.c * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed with * this work for additional information regarding copyright ownership. The * ASF licenses this file to you under the Apache License, Version 2.0 (the * "License"); you may not use this file except in compliance with the * License. You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the * License for the specific language governing permissions and limitations * under the License. * ****************************************************************************/ /**************************************************************************** * Included Files ****************************************************************************/ #include #include #include #include #include #include #include #include #include #include #include #include #include "pic32mx.h" #include "pic32mx7mmb.h" /**************************************************************************** * Pre-processor Definitions ****************************************************************************/ /* Configuration ************************************************************/ /* Assume that we have MMC/SD, USB host (and USB device) */ #define NSH_HAVEMMCSD 1 #define NSH_HAVEUSBHOST 1 /* The Mikroelektronika PIC32MX7 MMB has one SD slot on board, * connected to SPI 1. */ #ifndef CONFIG_PIC32MX_MMCSDSPIPORTNO # define CONFIG_PIC32MX_MMCSDSPIPORTNO 1 #endif /* Make sure that the configuration will support the SD card */ #ifdef 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 slot 0 (there is only one * SD slot on the Mikroelektronica PIC32MX7 MMB). */ # if !defined(CONFIG_NSH_MMCSDSLOTNO) # define CONFIG_NSH_MMCSDSLOTNO 0 # elif CONFIG_NSH_MMCSDSLOTNO != 0 # warning "The Mikroelektronika PIC32MX7 MMB 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 NSH_HAVEMMCSD # elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 2 && !defined(CONFIG_PIC32MX_SPI2) # warning "CONFIG_PIC32MX_SPI2 is not enabled" # undef NSH_HAVEMMCSD # elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 3 && !defined(CONFIG_PIC32MX_SPI3) # warning "CONFIG_PIC32MX_SPI3 is not enabled" # undef NSH_HAVEMMCSD # elif CONFIG_PIC32MX_MMCSDSPIPORTNO == 4 && !defined(CONFIG_PIC32MX_SPI4) # warning "CONFIG_PIC32MX_SPI4 is not enabled" # undef NSH_HAVEMMCSD # endif #endif /* Can't support MMC/SD features if mountpoints are disabled */ #if defined(CONFIG_DISABLE_MOUNTPOINT) # undef 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 NSH_HAVEUSBHOST # endif #endif #ifdef CONFIG_PIC32MX_USBHOST # ifndef CONFIG_USBHOST # warning "CONFIG_USBHOST is not selected" # undef NSH_HAVEUSBHOST # endif #endif #if !defined(CONFIG_USBHOST) || !defined(CONFIG_PIC32MX_USBHOST) # undef NSH_HAVEUSBHOST #endif #ifdef NSH_HAVEUSBHOST # ifndef CONFIG_USBHOST_DEFPRIO # define CONFIG_USBHOST_DEFPRIO 50 # endif # ifndef CONFIG_USBHOST_STACKSIZE # ifdef CONFIG_USBHOST_HUB # define CONFIG_USBHOST_STACKSIZE 1536 # else # define CONFIG_USBHOST_STACKSIZE 1024 # endif # endif #endif /**************************************************************************** * Private Data ****************************************************************************/ #ifdef NSH_HAVEUSBHOST static struct usbhost_connection_s *g_usbconn; #endif /**************************************************************************** * Private Functions ****************************************************************************/ /**************************************************************************** * Name: nsh_waiter * * Description: * Wait for USB devices to be connected. * ****************************************************************************/ #ifdef NSH_HAVEUSBHOST static int nsh_waiter(int argc, char *argv[]) { struct usbhost_hubport_s *hport; syslog(LOG_INFO, "nsh_waiter: Running\n"); for (; ; ) { /* Wait for the device to change state */ DEBUGVERIFY(CONN_WAIT(g_usbconn, &hport)); syslog(LOG_INFO, "nsh_waiter: %s\n", hport->connected ? "connected" : "disconnected"); /* Did we just become connected? */ if (hport->connected) { /* Yes.. enumerate the newly connected device */ CONN_ENUMERATE(g_usbconn, hport); } } /* Keep the compiler from complaining */ return 0; } #endif /**************************************************************************** * Name: nsh_sdinitialize * * Description: * Initialize SPI-based microSD. * ****************************************************************************/ #ifdef NSH_HAVEMMCSD static int nsh_sdinitialize(void) { struct spi_dev_s *spi; int ret; /* Get the SPI port */ spi = pic32mx_spibus_initialize(CONFIG_NSH_MMCSDSPIPORTNO); if (!spi) { syslog(LOG_ERR, "ERROR: Failed to initialize SPI port %d\n", CONFIG_NSH_MMCSDSPIPORTNO); ret = -ENODEV; goto errout; } syslog(LOG_INFO, "Successfully initialized SPI port %d\n", CONFIG_NSH_MMCSDSPIPORTNO); /* The SPI should be in 8-bit (default) and mode2: CKP=1, CKE=0. * The MMC/SD driver will control the SPI frequency. WARNING: * this is not the right way to do this... this should be done * the MMC/SD driver: Other device on SPI1 may need other mode * settings. */ SPI_SETMODE(spi, SPIDEV_MODE2); /* Bind the SPI port to the slot */ ret = mmcsd_spislotinitialize(CONFIG_NSH_MMCSDMINOR, CONFIG_NSH_MMCSDSLOTNO, spi); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to bind SPI port %d to MMC/SD slot %d: %d\n", CONFIG_NSH_MMCSDSPIPORTNO, CONFIG_NSH_MMCSDSLOTNO, ret); goto errout; } syslog(LOG_INFO, "Successfully 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 NSH_HAVEUSBHOST static int nsh_usbhostinitialize(void) { int ret; /* First, register all of the class drivers needed to support the drivers * that we care about: */ syslog(LOG_INFO, "Register class drivers\n"); #ifdef CONFIG_USBHOST_MSC /* Register the USB host Mass Storage Class */ ret = usbhost_msc_initialize(); if (ret != OK) { syslog(LOG_ERR, "ERROR: Failed to register the mass storage class: %d\n", ret); } #endif #ifdef CONFIG_USBHOST_CDCACM /* Register the CDC/ACM serial class */ ret = usbhost_cdcacm_initialize(); if (ret != OK) { syslog(LOG_ERR, "ERROR: Failed to register the CDC/ACM serial class: %d\n", ret); } #endif /* Then get an instance of the USB host interface */ syslog(LOG_INFO, "Initialize USB host\n"); g_usbconn = pic32_usbhost_initialize(0); if (g_usbconn) { /* Start a thread to handle device connection. */ syslog(LOG_INFO, "Start nsh_waiter\n"); ret = kthread_create("usbhost", CONFIG_USBHOST_DEFPRIO, CONFIG_USBHOST_STACKSIZE, (main_t)nsh_waiter, (char * const *)NULL); return ret < 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 Mikroelektronika PIC32MX7 MMB 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: pic32mx_bringup * * Description: * Perform architecture-specific initialization * * CONFIG_BOARD_LATE_INITIALIZE=y : * Called from board_late_initialize(). * * CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_BOARDCTL=y : * Called from the NSH library * ****************************************************************************/ int pic32mx_bringup(void) { int ret; #ifdef CONFIG_FS_PROCFS /* Mount the procfs file system */ ret = nx_mount(NULL, "/proc", "procfs", 0, NULL); if (ret < 0) { syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret); } if (ret == OK) #endif { /* 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(); } #ifdef CONFIG_INPUT /* Initialize the touchscreen */ ret = pic32mx_tsc_setup(0); if (ret < 0) { syslog(LOG_ERR, "ERROR: pic32mx_tsc_setup failed: %d\n", ret); } #endif return ret; }