/****************************************************************************
 * boards/arm/stm32/stm3240g-eval/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 <stdbool.h>
#include <stdio.h>
#include <debug.h>
#include <errno.h>

#include <nuttx/board.h>
#include <nuttx/fs/fs.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

#ifdef CONFIG_VIDEO_FB
#  include <nuttx/video/fb.h>
#endif

#ifdef CONFIG_INPUT_STMPE811
#  include <nuttx/input/touchscreen.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)
{
  struct i2c_master_s *i2c;
  int ret;

  i2c = stm32_i2cbus_initialize(bus);
  if (i2c == NULL)
    {
      _err("ERROR: Failed to get I2C%d interface\n", bus);
    }
  else
    {
      ret = i2c_register(i2c, bus);
      if (ret < 0)
        {
          _err("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: stm32_bringup
 *
 * Description:
 *   Perform architecture-specific initialization
 *
 *   CONFIG_BOARD_LATE_INITIALIZE=y :
 *     Called from board_late_initialize().
 *
 *   CONFIG_BOARD_LATE_INITIALIZE=y && CONFIG_BOARDCTL=y :
 *     Called from the NSH library
 *
 ****************************************************************************/

int stm32_bringup(void)
{
#ifdef HAVE_RTC_DRIVER
  struct rtc_lowerhalf_s *lower;
#endif
#ifdef CONFIG_STM32_SPI1
  struct spi_dev_s *spi;
  struct mtd_dev_s *mtd;
#endif
#ifdef HAVE_MMCSD
  struct sdio_dev_s *sdio;
#endif
  int ret;

  /* 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)
    {
      syslog(LOG_ERR,
             "ERROR: Failed to instantiate the RTC lower-half driver\n");
    }
  else
    {
      /* Bind the lower half driver and register the combined RTC driver
       * as /dev/rtc0
       */

      ret = rtc_initialize(0, lower);
      if (ret < 0)
        {
          syslog(LOG_ERR,
                 "ERROR: Failed to bind/register the RTC driver: %d\n",
                 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");
    }
  else
    {
      /* 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 SPI FLASH driver\n");
        }
    }

#warning "Now what are we going to do with this SPI FLASH driver?"
#endif

#ifdef HAVE_MMCSD
  /* Mount the SDIO-based MMC/SD block driver */

  /* 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);
    }
  else
    {
      /* 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);
        }

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

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

#ifdef HAVE_USBHOST
  /* Initialize USB host operation.  stm32_usbhost_initialize() starts a
   * thread that 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);
    }
#endif

#ifdef CONFIG_VIDEO_FB
  /* Initialize and register the simulated framebuffer driver */

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

#ifdef CONFIG_INPUT_STMPE811
  /* Initialize the touchscreen.
   * WARNING: stm32_tsc_setup() cannot be called from the IDLE thread.
   */

  ret = stm32_tsc_setup(0);
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: stm32_tsc_setup failed: %d\n", ret);
    }
#endif

#ifdef CONFIG_PWM
  /* Initialize PWM and register the PWM device. */

  ret = stm32_pwm_setup();
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: stm32_pwm_setup() 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_STM32_CAN_CHARDRIVER
  /* Initialize CAN and register the CAN driver. */

  ret = stm32_can_setup();
  if (ret < 0)
    {
      syslog(LOG_ERR, "ERROR: stm32_can_setup failed: %d\n", ret);
    }
#endif

  UNUSED(ret);
  return OK;
}