nuttx/boards/arm/sam34/arduino-due/src/sam_bringup.c

/****************************************************************************
 * boards/arm/sam34/arduino-due/src/sam_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 <stdio.h>
#include <syslog.h>

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

#include "arduino-due.h"

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

#if defined(CONFIG_ARDUINO_ITHEAD_TFT) && defined(CONFIG_SPI_BITBANG) && \
    defined(CONFIG_MMCSD_SPI)

/* Support for the SD card slot on the ITEAD TFT shield */

/* Verify NSH PORT and SLOT settings */

#  define SAM34_MMCSDSLOTNO    0 /* There is only one slot */

#  if defined(CONFIG_NSH_MMCSDSLOTNO) && CONFIG_NSH_MMCSDSLOTNO != SAM34_MMCSDSLOTNO
#    error Only one MMC/SD slot:  Slot 0 (CONFIG_NSH_MMCSDSLOTNO)
#  endif

/* Default MMC/SD minor number */

#  ifndef CONFIG_NSH_MMCSDMINOR
#    define CONFIG_NSH_MMCSDMINOR 0
#  endif
#endif

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

/****************************************************************************
 * Name: sam_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 sam_bringup(void)
{
  int ret;

#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

#if defined(CONFIG_ARDUINO_ITHEAD_TFT) && defined(CONFIG_SPI_BITBANG) && \
    defined(CONFIG_MMCSD_SPI)

  /* Initialize the SPI-based MMC/SD slot */

  int ret = sam_sdinitialize(CONFIG_NSH_MMCSDMINOR);
  if (ret < 0)
    {
      syslog(LOG_ERR,
             "board_app_initialize: Failed to initialize MMC/SD slot: %d\n",
             ret);
      return ret;
    }
#endif

#if defined(CONFIG_ARDUINO_ITHEAD_TFT) && defined(CONFIG_SPI_BITBANG) && \
    defined(CONFIG_INPUT_ADS7843E)
  /* Initialize the touchscreen */

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

  UNUSED(ret);
  return OK;
}