text: /*
   * The Clear BSD License
   * Copyright (c) 2016, Freescale Semiconductor, Inc.
   * Copyright 2016-2017 NXP
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without modification,
   * are permitted (subject to the limitations in the disclaimer below) provided
   * that the following conditions are met:
   *
   * o Redistributions of source code must retain the above copyright notice, this list
   *   of conditions and the following disclaimer.
   *
   * o 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.
   *
   * o Neither the name of the copyright holder nor the names of its
   *   contributors may be used to endorse or promote products derived from this
   *   software without specific prior written permission.
   *
   * NO EXPRESS OR IMPLIED LICENSES TO ANY PARTY'S PATENT RIGHTS ARE GRANTED BY THIS LICENSE.
   * 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 HOLDER 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.
   */
  
  #include "board.h"
  #include <stdint.h>
  #include "clock_config.h"
  #include "fsl_common.h"
  #include "fsl_emc.h"
  #if defined(SDK_I2C_BASED_COMPONENT_USED) && SDK_I2C_BASED_COMPONENT_USED
  #include "fsl_i2c.h"
  #endif /* SDK_I2C_BASED_COMPONENT_USED */
  #if defined BOARD_USE_CODEC
  #include "fsl_wm8904.h"
  #endif
  #include "hal/soc/soc.h"
  
  /*******************************************************************************
   * Definitions
   ******************************************************************************/
  /* The SDRAM timing. */
  #define SDRAM_REFRESHPERIOD_NS (64 * 1000000 / 4096) /* 4096 rows/ 64ms */
  #define SDRAM_TRP_NS (18u)
  #define SDRAM_TRAS_NS (42u)
  #define SDRAM_TSREX_NS (67u)
  #define SDRAM_TAPR_NS (18u)
  #define SDRAM_TWRDELT_NS (6u)
  #define SDRAM_TRC_NS (60u)
  #define SDRAM_RFC_NS (60u)
  #define SDRAM_XSR_NS (67u)
  #define SDRAM_RRD_NS (12u)
  #define SDRAM_MRD_NCLK (2u)
  #define SDRAM_RAS_NCLK (2u)
  #define SDRAM_MODEREG_VALUE (0x23u)
  #define SDRAM_DEV_MEMORYMAP (0x09u) /* 128Mbits (8M*16, 4banks, 12 rows, 9 columns)*/
  
  /*******************************************************************************
   * Variables
   ******************************************************************************/
  
  /* Clock rate on the CLKIN pin */
  const uint32_t ExtClockIn = BOARD_EXTCLKINRATE;
  
  #if defined BOARD_USE_CODEC
  codec_config_t boardCodecConfig = {
      .I2C_SendFunc = BOARD_Codec_I2C_Send,
      .I2C_ReceiveFunc = BOARD_Codec_I2C_Receive,
      .op.Init = WM8904_Init,
      .op.Deinit = WM8904_Deinit,
      .op.SetFormat = WM8904_SetAudioFormat
  };
  #endif
  /*******************************************************************************
   * Code
   ******************************************************************************/
  /* Initialize debug console. */
  status_t BOARD_InitDebugConsole(void)
  {
      status_t result = kStatus_Success;
      /* attach 12 MHz clock to FLEXCOMM0 (debug console) */
      CLOCK_AttachClk(BOARD_DEBUG_UART_CLK_ATTACH);
      RESET_PeripheralReset(BOARD_DEBUG_UART_RST);
      // result = DbgConsole_Init(BOARD_DEBUG_UART_BASEADDR, BOARD_DEBUG_UART_BAUDRATE, DEBUG_CONSOLE_DEVICE_TYPE_FLEXCOMM,
                               // BOARD_DEBUG_UART_CLK_FREQ);
      assert(kStatus_Success == result);
      return result;
  }
  
  /* Initialize the external memory. */
  void BOARD_InitSDRAM(void)
  {
      emc_basic_config_t basicConfig;
      emc_dynamic_timing_config_t dynTiming;
      emc_dynamic_chip_config_t dynChipConfig;
  
      /* Basic configuration. */
      basicConfig.endian = kEMC_LittleEndian;
      basicConfig.fbClkSrc = kEMC_IntloopbackEmcclk;
      /* EMC Clock = CPU FREQ/2 here can fit CPU freq from 12M ~ 180M.
       * If you change the divide to 0 and EMC clock is larger than 100M
       * please take refer to emc.dox to adjust EMC clock delay.
       */
      basicConfig.emcClkDiv = 1;
      /* Dynamic memory timing configuration. */
      dynTiming.readConfig = kEMC_Cmddelay;
      dynTiming.refreshPeriod_Nanosec = SDRAM_REFRESHPERIOD_NS;
      dynTiming.tRp_Ns = SDRAM_TRP_NS;
      dynTiming.tRas_Ns = SDRAM_TRAS_NS;
      dynTiming.tSrex_Ns = SDRAM_TSREX_NS;
      dynTiming.tApr_Ns = SDRAM_TAPR_NS;
      dynTiming.tWr_Ns = (1000000000 / CLOCK_GetFreq(kCLOCK_EMC) + SDRAM_TWRDELT_NS); /* one clk + 6ns */
      dynTiming.tDal_Ns = dynTiming.tWr_Ns + dynTiming.tRp_Ns;
      dynTiming.tRc_Ns = SDRAM_TRC_NS;
      dynTiming.tRfc_Ns = SDRAM_RFC_NS;
      dynTiming.tXsr_Ns = SDRAM_XSR_NS;
      dynTiming.tRrd_Ns = SDRAM_RRD_NS;
      dynTiming.tMrd_Nclk = SDRAM_MRD_NCLK;
      /* Dynamic memory chip specific configuration: Chip 0 - MTL48LC8M16A2B4-6A */
      dynChipConfig.chipIndex = 0;
      dynChipConfig.dynamicDevice = kEMC_Sdram;
      dynChipConfig.rAS_Nclk = SDRAM_RAS_NCLK;
      dynChipConfig.sdramModeReg = SDRAM_MODEREG_VALUE;
      dynChipConfig.sdramExtModeReg = 0; /* it has no use for normal sdram */
      dynChipConfig.devAddrMap = SDRAM_DEV_MEMORYMAP;
      /* EMC Basic configuration. */
      EMC_Init(EMC, &basicConfig);
      /* EMC Dynamc memory configuration. */
      EMC_DynamicMemInit(EMC, &dynTiming, &dynChipConfig, 1);
  }
  
  #if defined(SDK_I2C_BASED_COMPONENT_USED) && SDK_I2C_BASED_COMPONENT_USED
  void BOARD_I2C_Init(I2C_Type *base, uint32_t clkSrc_Hz)
  {
      i2c_master_config_t i2cConfig = {0};
  
      I2C_MasterGetDefaultConfig(&i2cConfig);
      I2C_MasterInit(base, &i2cConfig, clkSrc_Hz);
  }
  
  status_t BOARD_I2C_Send(I2C_Type *base,
                          uint8_t deviceAddress,
                          uint32_t subAddress,
                          uint8_t subaddressSize,
                          uint8_t *txBuff,
                          uint8_t txBuffSize)
  {
      i2c_master_transfer_t masterXfer;
  
      /* Prepare transfer structure. */
      masterXfer.slaveAddress = deviceAddress;
      masterXfer.direction = kI2C_Write;
      masterXfer.subaddress = subAddress;
      masterXfer.subaddressSize = subaddressSize;
      masterXfer.data = txBuff;
      masterXfer.dataSize = txBuffSize;
      masterXfer.flags = kI2C_TransferDefaultFlag;
  
      return I2C_MasterTransferBlocking(base, &masterXfer);
  }
  
  status_t BOARD_I2C_Receive(I2C_Type *base,
                             uint8_t deviceAddress,
                             uint32_t subAddress,
                             uint8_t subaddressSize,
                             uint8_t *rxBuff,
                             uint8_t rxBuffSize)
  {
      i2c_master_transfer_t masterXfer;
  
      /* Prepare transfer structure. */
      masterXfer.slaveAddress = deviceAddress;
      masterXfer.subaddress = subAddress;
      masterXfer.subaddressSize = subaddressSize;
      masterXfer.data = rxBuff;
      masterXfer.dataSize = rxBuffSize;
      masterXfer.direction = kI2C_Read;
      masterXfer.flags = kI2C_TransferDefaultFlag;
  
      return I2C_MasterTransferBlocking(base, &masterXfer);
  }
  
  void BOARD_Accel_I2C_Init(void)
  {
      BOARD_I2C_Init(BOARD_ACCEL_I2C_BASEADDR, BOARD_ACCEL_I2C_CLOCK_FREQ);
  }
  
  status_t BOARD_Accel_I2C_Send(uint8_t deviceAddress, uint32_t subAddress, uint8_t subaddressSize, uint32_t txBuff)
  {
      uint8_t data = (uint8_t)txBuff;
  
      return BOARD_I2C_Send(BOARD_ACCEL_I2C_BASEADDR, deviceAddress, subAddress, subaddressSize, &data, 1);
  }
  
  status_t BOARD_Accel_I2C_Receive(uint8_t deviceAddress, uint32_t subAddress, uint8_t subaddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
  {
      return BOARD_I2C_Receive(BOARD_ACCEL_I2C_BASEADDR, deviceAddress, subAddress, subaddressSize, rxBuff, rxBuffSize);
  }
  
  void BOARD_Codec_I2C_Init(void)
  {
      BOARD_I2C_Init(BOARD_CODEC_I2C_BASEADDR, BOARD_CODEC_I2C_CLOCK_FREQ);
  }
  
  status_t BOARD_Codec_I2C_Send(
      uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, const uint8_t *txBuff, uint8_t txBuffSize)
  {
      return BOARD_I2C_Send(BOARD_CODEC_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, (uint8_t *)txBuff,
                              txBuffSize);
  }
  
  status_t BOARD_Codec_I2C_Receive(
      uint8_t deviceAddress, uint32_t subAddress, uint8_t subAddressSize, uint8_t *rxBuff, uint8_t rxBuffSize)
  {
      return BOARD_I2C_Receive(BOARD_CODEC_I2C_BASEADDR, deviceAddress, subAddress, subAddressSize, rxBuff,
                                 rxBuffSize);
  }
  #endif /* SDK_I2C_BASED_COMPONENT_USED */
  