text: /*
   * 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.
   */
  
  #include "syscfg/syscfg.h"
  #if MYNEWT_VAL(BLE_CONTROLLER) && !MYNEWT_VAL(MCU_DEBUG_DSER_CMAC_SHARED)
  #define MCU_DIAG_SER_DISABLE
  #endif
  
  #include <assert.h>
  #include <string.h>
  #include <stdbool.h>
  #include "mcu/mcu.h"
  #include <cmac_driver/cmac_shared.h>
  #include "os/os_arch.h"
  #include "os/os.h"
  
  #ifndef min
  #define min(_a, _b)     ((_a) < (_b) ? (_a) : (_b))
  #endif
  
  #if MYNEWT_VAL(BLE_CONTROLLER)
  volatile struct cmac_shared_data g_cmac_shared_data     __attribute__((section(".shdata")));
  #else
  volatile struct cmac_shared_data *g_cmac_shared_data;
  #include "mcu/da1469x_clock.h"
  #define MCU_DIAG_SER(_x)
  #endif
  
  void
  cmac_shared_init(void)
  {
  #if !MYNEWT_VAL(BLE_CONTROLLER)
      g_cmac_shared_data = (void *)(MCU_MEM_SYSRAM_START_ADDRESS +
                                    MEMCTRL->CMI_SHARED_BASE_REG);
  
      memset((void *)g_cmac_shared_data, 0, sizeof(*g_cmac_shared_data));
  
      g_cmac_shared_data->xtal32m_settle_us = MYNEWT_VAL(MCU_CLOCK_XTAL32M_SETTLE_TIME_US);
  
      g_cmac_shared_data->dcdc.enabled = DCDC->DCDC_CTRL1_REG & DCDC_DCDC_CTRL1_REG_DCDC_ENABLE_Msk;
      if (g_cmac_shared_data->dcdc.enabled) {
          g_cmac_shared_data->dcdc.v18 = DCDC->DCDC_V18_REG;
          g_cmac_shared_data->dcdc.v18p = DCDC->DCDC_V18P_REG;
          g_cmac_shared_data->dcdc.vdd = DCDC->DCDC_VDD_REG;
          g_cmac_shared_data->dcdc.v14 = DCDC->DCDC_V14_REG;
          g_cmac_shared_data->dcdc.ctrl1 = DCDC->DCDC_CTRL1_REG;
      }
  
  #if MYNEWT_VAL(CMAC_DEBUG_DATA_ENABLE)
      g_cmac_shared_data->debug.tx_power_override = INT8_MAX;
  #endif
  #endif
  }
  
  
  void
  cmac_shared_sync(void)
  {
      /*
       * We need to guarantee proper order of initialization here, i.e. SYS has
       * to wait until CMAC finished initialization as otherwise host may start
       * sending HCI packets which will timeout as there is no one to read them.
       */
  #if MYNEWT_VAL(BLE_CONTROLLER)
      assert(g_cmac_shared_data.magic_cmac == 0);
  
      g_cmac_shared_data.magic_cmac = CMAC_SHARED_MAGIC_CMAC;
      while (g_cmac_shared_data.magic_sys != CMAC_SHARED_MAGIC_SYS);
  
      NVIC_SetPriority(SYS2CMAC_IRQn, 3);
      NVIC_EnableIRQ(SYS2CMAC_IRQn);
  #else
      assert(g_cmac_shared_data->magic_sys == 0);
  
      while (g_cmac_shared_data->magic_cmac != CMAC_SHARED_MAGIC_CMAC);
      g_cmac_shared_data->magic_sys = CMAC_SHARED_MAGIC_SYS;
  
      NVIC_EnableIRQ(CMAC2SYS_IRQn);
  #endif
  }
  