text: /* mbed Microcontroller Library
   * Copyright (c) 2013-2016 Realtek Semiconductor Corp.
   *
   * Licensed 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 "objects.h"
  #include "timer_api.h"
  
  #if CONFIG_TIMER_EN
  
  extern HAL_TIMER_OP HalTimerOp;
  
  extern HAL_Status HalTimerInitRtl8195a_Patch(
      IN  VOID    *Data
  );
  
  static void gtimer_timeout_handler (uint32_t tid)
  {
      gtimer_t *obj = (gtimer_t *)tid;
      gtimer_irq_handler handler;
      u8 timer_id = obj->hal_gtimer_adp.TimerId;
      
      if (obj->handler != NULL) {
          handler = (gtimer_irq_handler)obj->handler;
          handler(obj->hid);
      }
  
      if (!obj->is_periodcal) {
          gtimer_stop(obj);
      }
  
      if(timer_id < 2) {
          // Timer0 | Timer1: clear ISR here
          // Timer 2~7 ISR will be cleared in HAL
          HalTimerClearIsr(timer_id);
      }
  }
  
  void gtimer_init (gtimer_t *obj, uint32_t tid)
  {
      PTIMER_ADAPTER pTimerAdapter = &(obj->hal_gtimer_adp);
  
      if ((tid == 1) || (tid == 6) || (tid == 7)) {
          DBG_TIMER_ERR("gtimer_init: This timer is reserved for HAL driver\r\n", tid);
          return;
      }
  
      if (tid > GTIMER_MAX) {
          DBG_TIMER_ERR("gtimer_init: Invalid TimerId=%d\r\n", tid);
          return;
      }
      
      pTimerAdapter->IrqDis = 0;    // Enable Irq @ initial
      pTimerAdapter->IrqHandle.IrqFun = (IRQ_FUN) gtimer_timeout_handler;
      if(tid == 0) {
          pTimerAdapter->IrqHandle.IrqNum = TIMER0_IRQ;
      } else if(tid == 1) {
          pTimerAdapter->IrqHandle.IrqNum = TIMER1_IRQ;
      } else {
          pTimerAdapter->IrqHandle.IrqNum = TIMER2_7_IRQ;
      }
      pTimerAdapter->IrqHandle.Priority = 0;
      pTimerAdapter->IrqHandle.Data = (u32)obj;
      pTimerAdapter->TimerId = (u8)tid;
      pTimerAdapter->TimerIrqPriority = 0;
      pTimerAdapter->TimerLoadValueUs = 0xFFFFFFFF;   // Just a whatever value
      pTimerAdapter->TimerMode = USER_DEFINED;
      
      HalTimerInit ((VOID*) pTimerAdapter);
  }
  
  void gtimer_deinit (gtimer_t *obj)
  {
      PTIMER_ADAPTER pTimerAdapter = &(obj->hal_gtimer_adp);
      
      HalTimerDeInit((void*)pTimerAdapter);
  }
  
  uint32_t gtimer_read_tick (gtimer_t *obj)
  {
      PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
      
      return (HalTimerOp.HalTimerReadCount(pTimerAdapter->TimerId));
  }
  
  uint64_t gtimer_read_us (gtimer_t *obj)
  {
      uint64_t time_us;
  
      time_us = gtimer_read_tick(obj)*1000000/32768;
  
      return (time_us);
  }
  
  void gtimer_reload (gtimer_t *obj, uint32_t duration_us)
  {
      PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
  
      HalTimerReLoad(pTimerAdapter->TimerId, duration_us);
  }
  
  
  void gtimer_start (gtimer_t *obj)
  {
      PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
      u8 TimerId = pTimerAdapter->TimerId;
  
    HalTimerEnable(TimerId); 
  }
  
  void gtimer_start_one_shout (gtimer_t *obj, uint32_t duration_us, void* handler, uint32_t hid)
  {
      obj->is_periodcal = _FALSE;
      obj->handler = handler;
      obj->hid = hid;
      gtimer_reload(obj, duration_us);
      gtimer_start(obj);
  }
  
  void gtimer_start_periodical (gtimer_t *obj, uint32_t duration_us, void* handler, uint32_t hid)
  {
      obj->is_periodcal = _TRUE;
      obj->handler = handler;
      obj->hid = hid;
      if (duration_us > GTIMER_TICK_US) {
          // reload will takes extra 1 tick
          duration_us -= GTIMER_TICK_US;
      }
      gtimer_reload(obj, duration_us);
      gtimer_start(obj);
  }
  
  void gtimer_stop (gtimer_t *obj)
  {
      PTIMER_ADAPTER pTimerAdapter = &obj->hal_gtimer_adp;
      HalTimerDisable(pTimerAdapter->TimerId);    
  }
  
  #endif  // end of "#if CONFIG_TIMER_EN"
  
  