nuttx/configs/photon/src/stm32_bringup.c

/****************************************************************************
 * config/photon/src/stm32_bringup.c
 *
 *   Copyright (C) 2017 Gregory Nutt. All rights reserved.
 *   Author: Simon Piriou <spiriou31@gmail.com>
 *
 * 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 <nuttx/config.h>

#include <sys/types.h>
#include <sys/mount.h>
#include <syslog.h>

#include <nuttx/input/buttons.h>
#include <nuttx/leds/userled.h>
#include <nuttx/board.h>

#include <arch/board/board.h>

#include "photon.h"
#include "stm32_wdg.h"

/****************************************************************************
 * Public Functions
 ****************************************************************************/

/****************************************************************************
 * Name: stm32_bringup
 *
 * Description:
 *   Called either by board_intialize() if CONFIG_BOARD_LATE_INITIALIZE or by
 *   board_app_initialize if CONFIG_LIB_BOARDCTL is selected.  This function
 *   initializes and configures all on-board features appropriate for the
 *   selected configuration.
 *
 ****************************************************************************/

int stm32_bringup(void)
{
  int ret = OK;

#ifdef CONFIG_FS_PROCFS
  /* Mount the procfs file system */

  ret = mount(NULL, "/proc", "procfs", 0, NULL);
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: Failed to mount procfs at /proc: %d\n", ret);
    }
#endif

#if defined(CONFIG_USERLED) && !defined(CONFIG_ARCH_LEDS)
#ifdef CONFIG_USERLED_LOWER
  /* Register the LED driver */

  ret = userled_lower_initialize("/dev/userleds");
  if (ret != OK)
    {
      syslog(LOG_ERR, "ERROR: userled_lower_initialize() failed: %d\n", ret);
      return ret;
    }
#else
  /* Enable USER LED support for some other purpose */

  board_userled_initialize();
#endif /* CONFIG_USERLED_LOWER */
#endif /* CONFIG_USERLED && !CONFIG_ARCH_LEDS */

#ifdef CONFIG_BUTTONS
#ifdef CONFIG_BUTTONS_LOWER
  /* Register the BUTTON driver */

  ret = btn_lower_initialize("/dev/buttons");
  if (ret != OK)
    {
      syslog(LOG_ERR, "ERROR: btn_lower_initialize() failed: %d\n", ret);
      return ret;
    }
#else
  /* Enable BUTTON support for some other purpose */

  board_button_initialize();
#endif /* CONFIG_BUTTONS_LOWER */
#endif /* CONFIG_BUTTONS */

#ifdef CONFIG_STM32_IWDG
  /* Initialize the watchdog timer */

  stm32_iwdginitialize("/dev/watchdog0", STM32_LSI_FREQUENCY);
#endif

#ifdef CONFIG_PHOTON_WDG
  /* Start WDG kicker thread */

  ret = photon_watchdog_initialize();
  if (ret != OK)
    {
      syslog(LOG_ERR, "Failed to start watchdog thread: %d\n", ret);
      return ret;
    }
#endif

#ifdef CONFIG_RGBLED
  /* Configure and initialize the RGB LED. */

  ret = stm32_rgbled_setup();
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: stm32_rgbled_setup() failed: %d\n", ret);
    }
#endif

#ifdef CONFIG_PHOTON_WLAN
  /* Initialize wlan driver and hardware */

  ret = photon_wlan_initialize();
  if (ret != OK)
    {
      syslog(LOG_ERR, "Failed to initialize wlan: %d\n", ret);
      return ret;
    }
#endif

  return ret;
}