nuttx/configs/stm3240g-eval/src/stm32_appinit.c

/****************************************************************************
 * config/stm3240g_eval/src/stm32_appinit.c
 *
 *   Copyright (C) 2012, 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 <stdbool.h>
#include <stdio.h>
#include <syslog.h>
#include <errno.h>

#include <nuttx/board.h>
#include <nuttx/i2c/i2c_master.h>

#ifdef CONFIG_STM32_SPI1
#  include <nuttx/spi/spi.h>
#  include <nuttx/mtd/mtd.h>
#endif

#ifdef CONFIG_STM32_SDIO
#  include <nuttx/sdio.h>
#  include <nuttx/mmcsd.h>
#endif

#ifdef CONFIG_STM32_OTGFS
#  include "stm32_usbhost.h"
#endif

#ifdef CONFIG_RTC_DRIVER
#  include <nuttx/timers/rtc.h>
#  include "stm32_rtc.h"
#endif

#include "stm32.h"
#include "stm32_i2c.h"
#include "stm3240g-eval.h"

/****************************************************************************
 * Pre-processor Definitions
 ****************************************************************************/

/* Configuration ************************************************************/

/* For now, don't build in any SPI1 support -- NSH is not using it */

#undef CONFIG_STM32_SPI1

/* Assume that we support everything until convinced otherwise */

#define HAVE_MMCSD      1
#define HAVE_USBDEV     1
#define HAVE_USBHOST    1
#define HAVE_RTC_DRIVER 1

/* Can't support MMC/SD features if mountpoints are disabled or if SDIO support
 * is not enabled.
 */

#if defined(CONFIG_DISABLE_MOUNTPOINT) || !defined(CONFIG_STM32_SDIO)
#  undef HAVE_MMCSD
#endif

/* Default MMC/SD minor number */

#ifdef HAVE_MMCSD
#  ifndef CONFIG_NSH_MMCSDMINOR
#    define CONFIG_NSH_MMCSDMINOR 0
#  endif

/* Default MMC/SD SLOT number */

#  if defined(CONFIG_NSH_MMCSDSLOTNO) && CONFIG_NSH_MMCSDSLOTNO != 0
#    error "Only one MMC/SD slot"
#    undef CONFIG_NSH_MMCSDSLOTNO
#  endif

#  ifndef CONFIG_NSH_MMCSDSLOTNO
#    define CONFIG_NSH_MMCSDSLOTNO 0
#  endif
#endif

/* Can't support USB host or device features if USB OTG FS is not enabled */

#ifndef CONFIG_STM32_OTGFS
#  undef HAVE_USBDEV
#  undef HAVE_USBHOST
#endif

/* Can't support USB device is USB device is not enabled */

#ifndef CONFIG_USBDEV
#  undef HAVE_USBDEV
#endif

/* Can't support USB host is USB host is not enabled */

#ifndef CONFIG_USBHOST
#  undef HAVE_USBHOST
#endif

/* Check if we can support the RTC driver */

#if !defined(CONFIG_RTC) || !defined(CONFIG_RTC_DRIVER)
#  undef HAVE_RTC_DRIVER
#endif

/****************************************************************************
 * Private Functions
 ****************************************************************************/

/****************************************************************************
 * Name: stm32_i2c_register
 *
 * Description:
 *   Register one I2C drivers for the I2C tool.
 *
 ****************************************************************************/

#ifdef HAVE_I2CTOOL
static void stm32_i2c_register(int bus)
{
  FAR struct i2c_master_s *i2c;
  int ret;

  i2c = stm32_i2cbus_initialize(bus);
  if (i2c == NULL)
    {
      dbg("ERROR: Failed to get I2C%d interface\n", bus);
    }
  else
    {
      ret = i2c_register(i2c, bus);
      if (ret < 0)
        {
          dbg("ERROR: Failed to register I2C%d driver: %d\n", bus, ret);
          stm32_i2cbus_uninitialize(i2c);
        }
    }
}
#endif

/****************************************************************************
 * Name: stm32_i2ctool
 *
 * Description:
 *   Register I2C drivers for the I2C tool.
 *
 ****************************************************************************/

#ifdef HAVE_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
}
#else
#  define stm32_i2ctool()
#endif

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

/****************************************************************************
 * Name: board_app_initialize
 *
 * Description:
 *   Perform architecture specific initialization
 *
 ****************************************************************************/

int board_app_initialize(void)
{
#ifdef HAVE_RTC_DRIVER
  FAR struct rtc_lowerhalf_s *lower;
#endif
#ifdef CONFIG_STM32_SPI1
  FAR struct spi_dev_s *spi;
  FAR struct mtd_dev_s *mtd;
#endif
#ifdef HAVE_MMCSD
  FAR struct sdio_dev_s *sdio;
#endif
#if defined(HAVE_MMCSD) || defined(HAVE_USBHOST) || defined(HAVE_RTC_DRIVER)
  int ret;
#endif

  /* Register I2C drivers on behalf of the I2C tool */

  stm32_i2ctool();

#ifdef HAVE_RTC_DRIVER
  /* Instantiate the STM32 lower-half RTC driver */

  lower = stm32_rtc_lowerhalf();
  if (!lower)
    {
      sdbg("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, lower);
      if (ret < 0)
        {
          sdbg("ERROR: Failed to bind/register the RTC driver: %d\n", ret);
          return ret;
        }
    }
#endif

  /* Configure SPI-based devices */

#ifdef CONFIG_STM32_SPI1
  /* Get the SPI port */

  spi = stm32_spibus_initialize(1);
  if (!spi)
    {
      syslog(LOG_ERR, "ERROR: Failed to initialize SPI port 0\n");
      return -ENODEV;
    }

  /* Now bind the SPI interface to the M25P64/128 SPI FLASH driver */

  mtd = m25p_initialize(spi);
  if (!mtd)
    {
      syslog(LOG_ERR, "ERROR: Failed to bind SPI port 0 to the SPI FLASH driver\n");
      return -ENODEV;
    }
#warning "Now what are we going to do with this SPI FLASH driver?"
#endif

  /* Mount the SDIO-based MMC/SD block driver */

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

  sdio = sdio_initialize(CONFIG_NSH_MMCSDSLOTNO);
  if (!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, 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.  I need to check to
   * see if the STM3240G-EVAL board supports a GPIO to detect if there is a card in
   * the slot.
   */

   sdio_mediachange(sdio, true);
#endif

#ifdef HAVE_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)
    {
      syslog(LOG_ERR, "ERROR: Failed to initialize USB host: %d\n", ret);
      return ret;
    }
#endif

  return OK;
}