text: /****************************************************************************
   * boards/risc-v/esp32c3/esp32c3-devkit/src/esp32c3_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 <fcntl.h>
  #include <unistd.h>
  #include <syslog.h>
  #include <sys/stat.h>
  #include <sys/ioctl.h>
  #include <sys/types.h>
  #include <syslog.h>
  #include <debug.h>
  #include <stdio.h>
  
  #include <nuttx/fs/fs.h>
  
  #include "esp32c3_wlan.h"
  #include "esp32c3_spiflash.h"
  #include "esp32c3_partition.h"
  #include "esp32c3-devkit.h"
  
  #ifdef CONFIG_SPI
  #  include "esp32c3_spi.h"
  #endif
  
  #ifdef CONFIG_LCD_DEV
  #  include <nuttx/board.h>
  #  include <nuttx/lcd/lcd_dev.h>
  #endif
  
  #ifdef CONFIG_VIDEO_FB
  #  include <nuttx/video/fb.h>
  #endif
  
  #ifdef CONFIG_ESP32C3_RT_TIMER
  #  include "esp32c3_rt_timer.h"
  #endif
  
  #ifdef CONFIG_TIMER
  #  include "esp32c3_tim_lowerhalf.h"
  #endif
  
  #include "esp32c3_rtc.h"
  #ifdef CONFIG_ESP32C3_EFUSE
  #  include "esp32c3_efuse.h"
  #endif
  
  #ifdef CONFIG_ESP32C3_SHA_ACCELERATOR
  #  include "esp32c3_sha.h"
  #endif
  
  #ifdef CONFIG_RTC_DRIVER
  #  include "esp32c3_rtc_lowerhalf.h"
  #endif
  
  #ifdef CONFIG_ESP32C3_BLE
  #  include "esp32c3_ble.h"
  #endif
  
  /****************************************************************************
   * Pre-processor Definitions
   ****************************************************************************/
  
  /****************************************************************************
   * Public Functions
   ****************************************************************************/
  
  /****************************************************************************
   * Name: esp32c3_bringup
   *
   * Description:
   *   Perform architecture-specific initialization
   *
   *   CONFIG_BOARD_LATE_INITIALIZE=y
   *     Called from board_late_initialize().
   *
   *   CONFIG_BOARD_LATE_INITIALIZE=n && CONFIG_BOARDCTL=y
   *     Called from the NSH library
   *
   ****************************************************************************/
  
  int esp32c3_bringup(void)
  {
    int ret;
  
  #if defined(CONFIG_ESP32C3_EFUSE)
    ret = esp32c3_efuse_initialize("/dev/efuse");
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: Failed to init EFUSE: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_ESP32C3_SHA_ACCELERATOR
    ret = esp32c3_sha_init();
    if (ret < 0)
      {
        syslog(LOG_ERR,
               "ERROR: Failed to initialize SHA: %d\n", ret);
      }
  #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 CONFIG_FS_TMPFS
    /* Mount the tmpfs file system */
  
    ret = nx_mount(NULL, CONFIG_LIBC_TMPDIR, "tmpfs", 0, NULL);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: Failed to mount tmpfs at %s: %d\n",
               CONFIG_LIBC_TMPDIR, ret);
      }
  #endif
  
  #ifdef CONFIG_ESP32C3_SPIFLASH
    ret = board_spiflash_init();
    if (ret)
      {
        syslog(LOG_ERR, "ERROR: Failed to initialize SPI Flash\n");
      }
  #endif
  
  #ifdef CONFIG_ESP32C3_PARTITION_TABLE
    ret = esp32c3_partition_init();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: Failed to initialize partition error=%d\n",
               ret);
      }
  #endif
  
  #ifdef CONFIG_DEV_GPIO
    ret = esp32c3_gpio_init();
    if (ret < 0)
      {
        syslog(LOG_ERR, "Failed to initialize GPIO Driver: %d\n", ret);
      }
  #endif
  
  #if defined(CONFIG_SPI_DRIVER) && defined(CONFIG_ESP32C3_SPI2)
    ret = board_spidev_initialize(ESP32C3_SPI2);
    if (ret < 0)
      {
        syslog(LOG_ERR, "Failed to initialize SPI%d driver: %d\n",
               ESP32C3_SPI2, ret);
      }
  #endif
  
  #if defined(CONFIG_SPI_SLAVE_DRIVER) && defined(CONFIG_ESP32C3_SPI2)
    ret = board_spislavedev_initialize(ESP32C3_SPI2);
    if (ret < 0)
      {
        syslog(LOG_ERR, "Failed to initialize SPI%d Slave driver: %d\n",
               ESP32C3_SPI2, ret);
      }
  #endif
  
  #ifdef CONFIG_VIDEO_FB
    ret = fb_register(0, 0);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: Failed to initialize Frame Buffer Driver.\n");
      }
  #elif defined(CONFIG_LCD)
    ret = board_lcd_initialize();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: Failed to initialize LCD.\n");
      }
  #endif
  
  #ifdef CONFIG_LCD_DEV
    ret = lcddev_register(0);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: lcddev_register() failed: %d\n", ret);
      }
  #endif
  
  #if defined(CONFIG_I2C_DRIVER)
    /* Configure I2C peripheral interfaces */
  
    ret = board_i2c_init();
  
    if (ret < 0)
      {
        syslog(LOG_ERR, "Failed to initialize I2C driver: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_CAN
  
    /* Initialize TWAI and register the TWAI driver. */
  
    ret = esp32c3_twai_setup();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: esp32c3_twai_setup failed: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_SENSORS_BMP180
    /* Try to register BMP180 device in I2C0 */
  
    ret = board_bmp180_initialize(0, 0);
  
    if (ret < 0)
      {
        syslog(LOG_ERR, "Failed to initialize BMP180 "
                         "Driver for I2C0: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_WATCHDOG
    /* Configure watchdog timer */
  
    ret = board_wdt_init();
    if (ret < 0)
      {
        syslog(LOG_ERR,
               "ERROR: Failed to initialize watchdog drivers: %d\n",
               ret);
      }
  #endif
  
  /* First, register the timer drivers and let timer 1 for oneshot
   * if it is enabled.
   */
  
  #ifdef CONFIG_TIMER
  
  #if defined(CONFIG_ESP32C3_TIMER0) && !defined(CONFIG_ESP32C3_RT_TIMER)
    ret = esp32c3_timer_initialize("/dev/timer0", TIMER0);
    if (ret < 0)
      {
        syslog(LOG_ERR,
               "ERROR: Failed to initialize timer driver: %d\n",
               ret);
      }
  #endif
  
  #if defined(CONFIG_ESP32C3_TIMER1) && !defined(CONFIG_ONESHOT)
    ret = esp32c3_timer_initialize("/dev/timer1", TIMER1);
    if (ret < 0)
      {
        syslog(LOG_ERR,
               "ERROR: Failed to initialize timer driver: %d\n",
               ret);
      }
  #endif
  
  #endif /* CONFIG_TIMER */
  
    /* Now register one oneshot driver */
  
  #if defined(CONFIG_ONESHOT) && defined(CONFIG_ESP32C3_TIMER1)
  
    ret = board_oneshot_init(ONESHOT_TIMER, ONESHOT_RESOLUTION_US);
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: board_oneshot_init() failed: %d\n", ret);
      }
  
  #endif /* CONFIG_ONESHOT */
  
  #ifdef CONFIG_ESP32C3_RT_TIMER
    ret = esp32c3_rt_timer_init();
    if (ret < 0)
      {
        syslog(LOG_ERR, "Failed to initialize RT timer: %d\n", ret);
      }
  #endif
  
  #ifdef CONFIG_ESP32C3_WIRELESS
  
  #ifdef CONFIG_ESP32C3_WIFI_BT_COEXIST
    ret = esp32c3_wifi_bt_coexist_init();
    if (ret)
      {
        syslog(LOG_ERR, "ERROR: Failed to initialize Wi-Fi and BT coexist\n");
      }
  #endif
  
  #ifdef CONFIG_ESP32C3_BLE
    ret = esp32c3_ble_initialize();
    if (ret)
      {
        syslog(LOG_ERR, "ERROR: Failed to initialize BLE\n");
      }
  #endif
  
  #ifdef CONFIG_ESP32C3_WIFI
  
    ret = board_wlan_init();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: board_wlan_init() failed: %d\n", ret);
      }
  
  #endif
  
  #endif /* CONFIG_ESP32C3_WIRELESS */
  
  #ifdef CONFIG_ESP32C3_LEDC
    ret = esp32c3_pwm_setup();
    if (ret < 0)
      {
        syslog(LOG_ERR, "ERROR: esp32c3_pwm_setup() failed: %d\n", ret);
      }
  #endif /* CONFIG_ESP32C3_LEDC */
  
  #ifdef CONFIG_ESP32C3_ADC
    ret = board_adc_init();
    if (ret)
      {
        syslog(LOG_ERR, "ERROR: board_adc_init() failed: %d\n", ret);
      }
  #endif /* CONFIG_ESP32C3_ADC */
  
  #ifdef CONFIG_RTC_DRIVER
    /* Instantiate the ESP32-C3 RTC driver */
  
    ret = esp32c3_rtc_driverinit();
    if (ret < 0)
      {
        syslog(LOG_ERR,
               "ERROR: Failed to Instantiate the RTC driver: %d\n", ret);
      }
  #endif
  
    /* If we got here then perhaps not all initialization was successful, but
     * at least enough succeeded to bring-up NSH with perhaps reduced
     * capabilities.
     */
  
    UNUSED(ret);
    return OK;
  }
  