text: /****************************************************************************
   * boards/arm/stm32/stm32f411-minimum/src/stm32_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 <nuttx/config.h>
  
  #include <sys/mount.h>
  #include <debug.h>
  
  #include "stm32.h"
  
  #ifdef CONFIG_STM32_OTGFS
  #  include "stm32_usbhost.h"
  #endif
  
  #ifdef CONFIG_SENSORS_DHTXX
  #include "stm32_dhtxx.h"
  #endif
  #ifdef CONFIG_SENSORS_HCSR04
  #include "stm32_hcsr04.h"
  #endif
  
  
  #include "stm32f411-minimum.h"
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: stm32_bringup
   *
   * Description:
   *   Perform architecture-specific initialization
   *
   *   CONFIG_BOARD_LATE_INITIALIZE=y :
   *     Called from board_late_initialize().
   *
   *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_LIB_BOARDCTL=y :
   *     Called from the NSH library
   *
   ****************************************************************************/
  #if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL)
  static void stm32_i2c_register(int bus)
  {
    struct i2c_master_s *i2c;
    int ret;
  
    i2c = stm32_i2cbus_initialize(bus);
    if (i2c == NULL)
      {
        syslog(LOG_ERR, "ERROR: Failed to get I2C%d interface\n", bus);
      }
    else
      {
        ret = i2c_register(i2c, bus);
        if (ret < 0)
          {
            syslog(LOG_ERR, "ERROR: Failed to register I2C%d driver: %d\n",
                   bus, ret);
            stm32_i2cbus_uninitialize(i2c);
          }
      }
  }
  #endif
  
  
  #if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL)
  static void stm32_i2ctool(void)
  {
  #ifdef CONFIG_STM32_I2C1
    stm32_i2c_register(1);
  #endif
  #ifdef CONFIG_STM32_I2C2
    stm32_i2c_register(2);
  #endif
  #ifdef CONFIG_STM32_I2C3
    stm32_i2c_register(3);
  #endif
  }
  #endif
  
  
  int stm32_bringup(void)
  {
    int ret = OK;
  
  #if defined(CONFIG_STM32_OTGFS) && defined(CONFIG_USBHOST)
    /* Initialize USB host operation.  stm32_usbhost_initialize() starts a
     * thread will monitor for USB connection and disconnection events.
     */
  
    ret = stm32_usbhost_initialize();
    if (ret != OK)
      {
        uerr("ERROR: Failed to initialize USB host: %d\n", ret);
        return ret;
      }
  #endif
  
  #ifdef CONFIG_SENSORS_DHTXX
    ret = board_dhtxx_initialize(0);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: stm32_dhtxx_initialize() failed: %d\n", ret);
      }
  #endif
  
  #ifndef CONFIG_SENSORS_HCSR04
     ret = board_hcsr04_initialize(0);
     if (ret < 0)
     {
         syslog(LOG_ERR, "ERROR: stm32_hcsr04_initialize() failed: %d\n", ret);
     }
  #endif  
  
  #ifdef CONFIG_FS_PROCFS
    /* Mount the procfs file system */
  
    ret = mount(NULL, STM32_PROCFS_MOUNTPOINT, "procfs", 0, NULL);
    if (ret < 0)
      {
        ferr("ERROR: Failed to mount procfs at %s: %d\n",
             STM32_PROCFS_MOUNTPOINT, ret);
      }
  #endif
  
  #if defined(CONFIG_I2C) && defined(CONFIG_SYSTEM_I2CTOOL)
    stm32_i2ctool();
  #endif
  
    return ret;
  }
  