ble-light/components/driver/timer/ap_timer.c

/**************************************************************************************************
 
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#include "ap_cp.h"
#include "timer.h"
#include "ap_timer.h"
#include "ll.h"
#include "ll_def.h"
#include "log.h"
#include "hal_mcu.h"
#include "jump_function.h"
#include "pwrmgr.h"
#include "clock.h"
#include "error.h"

extern void clear_timer(AP_TIM_TypeDef *TIMx);
extern int  clearTimerInt(AP_TIM_TypeDef *TIMx);

AP_TIM_TypeDef* const TimerIndex[4]= {AP_TIM1,AP_TIM2,AP_TIM3,AP_TIM4};
static ap_tm_hdl_t s_ap_callback = NULL;

static void set_ap_loadtimer(AP_TIM_TypeDef *TIMx, int time)
{
  if(time>0)
  {
    TIMx->ControlReg = 0x0;
    TIMx->ControlReg = 0x2;
    TIMx->LoadCount = 4*time;           // 4MHz system timer, * 4 to convert to 1MHz timer
    TIMx->ControlReg = 0x3;
  }
  else
  {
    TIMx->ControlReg = 0x0;
  } 
}


void __attribute__((used)) AP_TIMER_IRQHandler(void)
{
  //HAL_ENTER_CRITICAL_SECTION();

  if(AP_TIM1->status&0x1)   
  { 
    clearTimerInt(AP_TIM1);
    if(s_ap_callback)
      s_ap_callback(APTM_EVT_TIMER_1);
  }

  if(AP_TIM2->status&0x1)   
  { 
    clearTimerInt(AP_TIM2);
    if(s_ap_callback)
      s_ap_callback(APTM_EVT_TIMER_2);
  }
  
  if(AP_TIM3->status&0x1)
  {    
    clearTimerInt(AP_TIM3);
    if(s_ap_callback)
      s_ap_callback(APTM_EVT_TIMER_3);
  }
  
  if(AP_TIM4->status & 0x1)
  {    
    clearTimerInt(AP_TIM4);
    if(s_ap_callback)
      s_ap_callback(APTM_EVT_TIMER_4);
  }
  
  //HAL_EXIT_CRITICAL_SECTION();
}


void ap_timer_wakeup_handler(void)
{
  clk_gate_enable(MOD_TIMER);
  //ap_timer_clear(0);
  //ap_timer_clear(1);
  //ap_timer_clear(2);
  //ap_timer_clear(3);
  NVIC_EnableIRQ((IRQn_Type)TIMER_IRQ);
  NVIC_SetPriority((IRQn_Type)TIMER_IRQ, IRQ_PRIO_HAL);

  if(s_ap_callback)
  {
    s_ap_callback(APTM_EVT_WAKEUP);
  }
}
void ap_timer_sleep_handler(void)
{
  if(s_ap_callback)
  {
    s_ap_callback(APTM_EVT_SLEEP);
  }
}

int ap_timer_int_mask(uint8_t timeId, bool en)
{
  AP_TIM_TypeDef *TIMx;
  
  if(timeId >=4)
    return PPlus_ERR_INVALID_PARAM;

  TIMx = TimerIndex[timeId];
  if(en)
      TIMx->ControlReg |= (1 << 2);
  else
    TIMx->ControlReg &= ~(1 << 2);

  return PPlus_SUCCESS;
}

int ap_timer_set(uint8_t timeId, uint32_t us)
{
  uint32_t time = us;
  switch(timeId)
  {
  case 0:
    set_ap_loadtimer(AP_TIM1, time);
    break;
  case 1:
    set_ap_loadtimer(AP_TIM2, time);
    break;
  case 2:
    set_ap_loadtimer(AP_TIM3, time);
    break;
  case 3:
    set_ap_loadtimer(AP_TIM4, time);
    break;
  default:
    return PPlus_ERR_INVALID_PARAM;
  }
  return PPlus_SUCCESS;
  
}

//timeId:1~4
int ap_timer_clear(uint8_t timeId)
{
  switch(timeId)
  {
  case 0:
    clear_timer(AP_TIM1);
    break;
  case 1:
    clear_timer(AP_TIM2);
    break;
  case 2:
    clear_timer(AP_TIM3);
    break;
  case 3:
    clear_timer(AP_TIM4);
    break;
  default:
    return PPlus_ERR_INVALID_PARAM;
  }
  return PPlus_SUCCESS;
  
}

int ap_timer_init(ap_tm_hdl_t callback)
{
  s_ap_callback = callback;

  clk_gate_enable(MOD_TIMER);

  ap_timer_clear(0);
  ap_timer_clear(1);
  ap_timer_clear(2);
  ap_timer_clear(3);
  
  HAL_ENTER_CRITICAL_SECTION();
  NVIC_EnableIRQ((IRQn_Type)TIMER_IRQ);
  NVIC_SetPriority((IRQn_Type)TIMER_IRQ, IRQ_PRIO_HAL);
  HAL_EXIT_CRITICAL_SECTION();
  
  return hal_pwrmgr_register(MOD_TIMER, ap_timer_sleep_handler, ap_timer_wakeup_handler);
  
}

int ap_timer_deinit(void)
{

  s_ap_callback = NULL;
  
  HAL_ENTER_CRITICAL_SECTION();
  NVIC_DisableIRQ((IRQn_Type)TIMER_IRQ);
  HAL_EXIT_CRITICAL_SECTION();
  clk_gate_disable(MOD_TIMER);
  
  return hal_pwrmgr_unregister(MOD_TIMER);
}