text: /****************************************************************************
   * boards/arm/stm32f7/stm32f746g-disco/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/types.h>
  #include <syslog.h>
  #include <errno.h>
  
  #include "stm32f746g-disco.h"
  
  #include <nuttx/fs/fs.h>
  
  #ifdef CONFIG_INPUT_BUTTONS
  #  include <nuttx/input/buttons.h>
  #endif
  
  #ifdef CONFIG_VIDEO_FB
  #  include <nuttx/video/fb.h>
  #endif
  
  /****************************************************************************
   * 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
   *
   ****************************************************************************/
  
  int stm32_bringup(void)
  {
    int ret;
  
  #ifdef CONFIG_FS_PROCFS
  
  #ifdef CONFIG_STM32_CCM_PROCFS
    /* Register the CCM procfs entry.  This must be done before the procfs is
     * mounted.
     */
  
    ccm_procfs_register();
  #endif
  
    /* Mount the procfs file system */
  
    ret = nx_mount(NULL, STM32_PROCFS_MOUNTPOINT, "procfs", 0, NULL);
    if (ret < 0)
      {
        syslog(LOG_ERR,
               "ERROR: Failed to mount the PROC filesystem: %d\n", ret);
        return ret;
      }
  #endif
  
  #ifdef CONFIG_INPUT_BUTTONS
    /* Register the BUTTON driver */
  
    ret = btn_lower_initialize("/dev/buttons");
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_ADC
    /* Initialize ADC and register the ADC driver. */
  
    ret = stm32_adc_setup();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: stm32_adc_setup failed: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_VIDEO_FB
    /* Initialize and register the framebuffer driver */
  
    ret = fb_register(0, 0);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: fb_register() failed: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_INPUT_FT5X06
    /* Initialize the touchscreen */
  
    ret = stm32_tsc_setup(0);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: stm32_tsc_setup failed: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_MTD_N25QXXX
    ret = stm32_n25qxxx_setup();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: stm32_n25qxxx_setup failed: %d\n", ret);
      }
  #endif
  
  #ifdef HAVE_SDIO
    ret = stm32_sdio_initialize();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: stm32_n25qxxx_setup failed: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_AUDIO_WM8994
    ret = stm32_wm8994_initialize(0);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: stm32_wm8994_initialize failed: %d\n", ret);
      }
  #endif
  
    UNUSED(ret);  /* May not be used */
    return OK;
  }
  