nuttx/configs/nucleo-l476rg/src/stm32_appinit.c

/****************************************************************************
 * configs/nucleo-l476rg/src/stm32_appinit.c
 *
 *   Copyright (C) 2016 Gregory Nutt. All rights reserved.
 *   Author: Gregory Nutt <gnutt@nuttx.org>
 *
 * 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 <stdio.h>
#include <string.h>
#include <fcntl.h>
#include <syslog.h>
#include <errno.h>

#include <nuttx/arch.h>
#include <nuttx/board.h>
#include <nuttx/sdio.h>
#include <nuttx/mmcsd.h>

#include <stm32l4.h>
#include <stm32l4_uart.h>

#include <arch/board/board.h>

#include "nucleo-l476rg.h"

#ifdef HAVE_RTC_DRIVER
#  include <nuttx/timers/rtc.h>
#  include "stm32l4_rtc.h"
#endif

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

/****************************************************************************
 * Name: up_netinitialize
 *
 * Description:
 *   Dummy function expected to start-up logic.
 *
 ****************************************************************************/

#ifdef CONFIG_WL_CC3000
void up_netinitialize(void)
{
}
#endif

/****************************************************************************
 * Name: board_app_initialize
 *
 * Description:
 *   Perform application specific initialization.  This function is never
 *   called directly from application code, but only indirectly via the
 *   (non-standard) boardctl() interface using the command BOARDIOC_INIT.
 *
 * Input Parameters:
 *   arg - The boardctl() argument is passed to the board_app_initialize()
 *         implementation without modification.  The argument has no
 *         meaning to NuttX; the meaning of the argument is a contract
 *         between the board-specific initalization logic and the the
 *         matching application logic.  The value cold be such things as a
 *         mode enumeration value, a set of DIP switch switch settings, a
 *         pointer to configuration data read from a file or serial FLASH,
 *         or whatever you would like to do with it.  Every implementation
 *         should accept zero/NULL as a default configuration.
 *
 * Returned Value:
 *   Zero (OK) is returned on success; a negated errno value is returned on
 *   any failure to indicate the nature of the failure.
 *
 ****************************************************************************/

int board_app_initialize(uintptr_t arg)
{
#ifdef HAVE_RTC_DRIVER
  FAR struct rtc_lowerhalf_s *rtclower;
#endif
  int ret;

  (void)ret;

  /* Configure CPU load estimation */

#ifdef CONFIG_SCHED_INSTRUMENTATION
  cpuload_initialize_once();
#endif

#ifdef HAVE_PROC
  /* Mount the proc filesystem */

  syslog(LOG_INFO, "Mounting procfs to /proc\n");

  ret = mount(NULL, CONFIG_NSH_PROC_MOUNTPOINT, "procfs", 0, NULL);
  if (ret < 0)
    {
      syslog(LOG_ERR,
             "ERROR: Failed to mount the PROC filesystem: %d (%d)\n",
             ret, errno);
      return ret;
    }
#endif

#ifdef HAVE_RTC_DRIVER
  /* Instantiate the STM32L4 lower-half RTC driver */

  rtclower = stm32l4_rtc_lowerhalf();
  if (!rtclower)
    {
      serr("ERROR: Failed to instantiate the RTC lower-half driver\n");
      return -ENOMEM;
    }
  else
    {
      /* Bind the lower half driver and register the combined RTC driver
       * as /dev/rtc0
       */

      ret = rtc_initialize(0, rtclower);
      if (ret < 0)
        {
          serr("ERROR: Failed to bind/register the RTC driver: %d\n", ret);
          return ret;
        }
    }
#endif

#ifdef HAVE_MMCSD
  /* First, get an instance of the SDIO interface */

  g_sdio = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
  if (!g_sdio)
    {
      syslog(LOG_ERR, "ERROR: Failed to initialize SDIO slot %d\n",
             CONFIG_NSH_MMCSDSLOTNO);
      return -ENODEV;
    }

  /* Now bind the SDIO interface to the MMC/SD driver */

  ret = mmcsd_slotinitialize(CONFIG_NSH_MMCSDMINOR, g_sdio);
  if (ret != OK)
    {
      syslog(LOG_ERR,
             "ERROR: Failed to bind SDIO to the MMC/SD driver: %d\n",
             ret);
      return ret;
    }

  /* Then let's guess and say that there is a card in the slot. There is no
   * card detect GPIO.
   */

  sdio_mediachange(g_sdio, true);

  syslog(LOG_INFO, "[boot] Initialized SDIO\n");
#endif

#ifdef CONFIG_AJOYSTICK
  /* Initialize and register the joystick driver */

  ret = board_ajoy_initialize();
  if (ret != OK)
    {
      syslog(LOG_ERR,
             "ERROR: Failed to register the joystick driver: %d\n",
             ret);
      return ret;
    }
#endif

#ifdef CONFIG_TIMER
  /* Initialize and register the timer driver */

  ret = board_timer_driver_initialize("/dev/timer0", 2);
  if (ret != OK)
    {
      syslog(LOG_ERR,
             "ERROR: Failed to register the timer driver: %d\n",
             ret);
      return ret;
    }
#endif

#ifdef CONFIG_QENCODER
  /* Initialize and register the qencoder driver */

  ret = stm32l4_qencoder_initialize("/dev/qe0", 3);
  if (ret != OK)
    {
      syslog(LOG_ERR,
             "ERROR: Failed to register the qencoder: %d\n",
             ret);
      return ret;
    }
#endif

  return OK;
}

#ifdef CONFIG_BOARDCTL_IOCTL
int board_ioctl(unsigned int cmd, uintptr_t arg)
{
  return -ENOTTY;
}
#endif

#if defined(CONFIG_BOARDCTL_UNIQUEID)
int board_uniqueid(uint8_t *uniqueid)
{
  if (uniqueid == 0)
    {
      return -EINVAL;
    }

  stm32l4_get_uniqueid(uniqueid);
  return OK;
}
#endif