📄 systime.c
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//----------------------------------------------------//
//-------Institute Of Computing Technology-----------//
//------------Chinese Academic Science---------------//
//-----中国科学院计算技术研究所先进测试技术实验室-----//
//----------------------------------------------------//
// **************************************************
// * @copyright:nbicc_lpp
// * @this is timer1 systime
// * @author zhouqiang (zhouhongren@163.com)
// * liulingyi (lingyiliu@ict.ac.cn)
// * @data:2005.11.05
// * @version:0.0.1
// * @updata:$
// **************************************************
#include "systime.h"
extern MAC_PIB mac_pib_data;
extern MAC_STATE_TYPE mac_current_state;
extern bool Is_received_beacon;
extern uint8_t loss_sync_number;
//extern uint8_t test_variable;
extern bool IS_NETWORK_FORMED;
union time_u
{
struct
{
uint16_t low;
uint16_t high;
};
uint32_t full;
};
uint16_t systime16L(void)
{
return TCNT1;
}
uint16_t systime16H(void)
{
return currentTime;
}
uint32_t systime32(void)
{
union time_u time;
{ os_atomic_t _nesc_atomic = os_atomic_start();
{
time.low = TCNT1;
time.high = currentTime;
if( bit_is_set(TIFR, TOV1) && ((int16_t)time.low) >= 0 )
++time.high;
}
os_atomic_end(_nesc_atomic); }
return time.full;
}
void systime_init(void)
{
uint8_t timsk;
head_of_systimer_queue=NULL;
currentTime=0x0000;
TCNT1=0x0000;
TCCR1A = 0x00;
TCCR1B = 0x00;
{ os_atomic_t _nesc_atomic = os_atomic_start();
{
timsk = TIMSK;
timsk |= (1<<TOIE1);//enable overflow interrupt
timsk |=(1<<TICIE1);//enable input capture interrupt
TIMSK = timsk;
//---------------------------------------
// add some codes for timequeue inital
//---------------------------------------
}
os_atomic_end(_nesc_atomic); }
//-------------------------------
// add some codes for timestamp initial
//-------------------------------
TCCR1B =0xc0|0x05;//! start th timer with 1/1024 prescaler, 0.5 symbol on gainz,normal model,rising edge on sfd will trigger the capture
}
void systime_stop(void)
{
TCCR1B = 0x00;// stop the timer
}
//---------------------------------------------------------------------------
// some timer1 drivers for timequeue added by zhouqiang in 2005.12.04
//---------------------------------------------------------------------------
void Timer1_OCR_intDisable(void)//disable the ocr1 interrupt
{
{ os_atomic_t _nesc_atomic = os_atomic_start();
{
TIMSK &= 0xef;
}
os_atomic_end(_nesc_atomic); }
}
uint8_t Timer1_setInterval(uint16_t interval)
{
{ os_atomic_t _nesc_atomic = os_atomic_start();
{
TIFR|=1<<OCF1A;
OCR1A = interval;//this is the scale
//OCR1B = 0x0000;
//OCR1C = 0x0000;
//TCNT1 = 0x0000; //this is the counter
//TCCR1A = 0x00;//Output: A: Disconnected, B: Disconnected, C: Disconnected,WGM[1..0]=00
//scale |= 0x08;//
//TCCR1B |= scale;//clk/(scale),WGM[3..2]=01/CTC
//TCCR1C = 0x00;//
TIMSK |= 0x10;//OCIE1A is enable
}
os_atomic_end(_nesc_atomic); }
//printf("*****the interval is %04x",interval);
return SUCCESS;
}
void Timer1_sethalfsymbol(uint16_t symbols)
{
uint16_t halfsymbols;
halfsymbols=symbols*2;
Timer1_setInterval(symbols);
}
//供高层调用获得下一次定时的比较寄存器应当设置的值
uint32_t Timer1_acquireInterval(uint32_t interval)
{
uint32_t temp;
//uint16_t tcnt_1;
//tcnt_1=TCNT1;
//printf("\nthe current TCNT1 is %04x",tcnt_1);
//printf("\nthe current interval is %04x",interval);
//temp=(uint32_t)interval;
temp=(interval<<1)+systime32();
//printf("\nthe current temp is %08lx",systime32());
// (temp>=65535) temp=temp-65535;
return (temp);
}
uint8_t Timer1_adjustInterval(uint16_t interval)
{
{ os_atomic_t _nesc_atomic = os_atomic_start();
{
//if(interval<65536)
OCR1A = interval;//this is the scale
//else
// OCR1A =interval-65535;
}
os_atomic_end(_nesc_atomic); }
return 1;
}
//供底层调用获得定时器比较寄存器应当设置的值，下一个定时任务
uint16_t Timer1_getnextInterval(void)
{
//返回定时器下一个定时值
//如果没有，则返回零
systimer_queue_pointer temp;
temp=head_of_systimer_queue->next;
if(temp!=NULL)
{//printf("temp is %04x\n",temp->ticks);
return (temp->ticks);
}
else
return 0;
}
//---------------------------------------------------------------------------
// change timer1 to be systimer,time3 for other usage. modified by zhouqiang in2005.12.04
// add a timequeue here for tasks,such as receive or transmit a beacon
//---------------------------------------------------------------------------
systimer_queue_pointer systimer_start_task(systimer_queue_pointer queue_head,uint8_t timer_reason, uint32_t ticks)
{
systimer_queue_pointer temp;
systimer_queue_pointer p_temp1,p_temp2;
uint32_t compare_reg;
uint32_t temp_time;
temp=(systimer_queue_pointer)malloc(sizeof(struct systimer_queue));
temp->next=NULL;
temp->timer_reason=timer_reason;
if(queue_head==NULL)
{
compare_reg=Timer1_acquireInterval(ticks);
//printf("\n******* the compare reg is %08lx",compare_reg);
if(compare_reg<65535)
Timer1_setInterval((uint16_t)compare_reg);
else
{
temp_time=compare_reg&0x0000ffff;
//printf("\n******* the real compare reg is %04x",(uint16_t)(temp_time));
Timer1_setInterval((uint16_t)(temp_time));
}
temp->ticks=(uint16_t)((compare_reg>65535)? ((uint16_t)(temp_time)):compare_reg);
temp->ticksLeft=compare_reg;
//temp->high_left=compare_reg&0xc0000000;
//printf("\n high left is %08lx",temp->high_left);
//temp->high_ticks=compare_reg&0xc0000000;
queue_head=temp;
//printf("\nhead ticks is %04x,ticksleft is %08lx,reason is %02x,head->reason is %02x\n",temp->ticks,temp->ticksLeft,timer_reason,temp->timer_reason);
}
else
{
//插入到定时队列中去，按temp->ticks的顺序
compare_reg=Timer1_acquireInterval(ticks);
//printf("\n----compare-reg is %08lx\n",compare_reg);
temp_time=compare_reg&0x0000ffff;
temp->ticks=(uint16_t)((compare_reg>65535)? ((uint16_t)(temp_time)):compare_reg);
temp->ticksLeft=compare_reg;
//temp->high_left=compare_reg&0xc0000000;
//temp->high_ticks=compare_reg&0xc0000000;
p_temp1=queue_head;
p_temp2=queue_head;
/*while(((temp->high_left)>=(p_temp2->high_left))&&(p_temp2!=NULL))
{
if((((temp->ticksLeft)&0x3fffffff)<=((p_temp2->ticksLeft)&0x3fffffff))&&((temp->high_left)==(p_temp2->high_left)))
{
break;
}
else*/
while((p_temp2!=NULL)&&((temp->ticksLeft)>=(p_temp2->ticksLeft))&&(p_temp2!=NULL))
{
p_temp1=p_temp2;
p_temp2=p_temp1->next;
}
//}
if(p_temp2!=queue_head)
{
Leds_redToggle();
//printf("\nticks is %04x,ticksleft is %08lx,reason is %02x,temp->reason is %02x\n",temp->ticks,temp->ticksLeft,timer_reason,temp->timer_reason);
p_temp1->next=temp;
temp->next=p_temp2;
}
else
//为头节点，需要调整物理定时器
{
Timer1_adjustInterval(temp->ticks);
// printf("\nbecome head ticks is %04x,ticksleft is %08lx,reason is %02x,temp->reason is %02x\n",temp->ticks,temp->ticksLeft,timer_reason,temp->timer_reason);
temp->next=queue_head;
queue_head=temp;
}
}
return queue_head;
}
systimer_queue_pointer systimer_stop_task(systimer_queue_pointer queue_head,uint8_t timer_reason)
{
//依据取消的framehandle,如果是队列头，则需要重新设置比较寄存器的值，否则只需把它从队列中摘掉即可。
systimer_queue_pointer p_temp1,p_temp2,p_temp3;
p_temp1=queue_head;
p_temp2=queue_head;
p_temp3=queue_head;
while((p_temp2->timer_reason!=timer_reason)&&(p_temp2!=NULL))
{
p_temp1=p_temp2;
p_temp2=p_temp2->next;
}
if(p_temp2==NULL)
error("cannot find an element in the timer_queue");
else
{
p_temp3=p_temp2->next;
if(p_temp2==queue_head)
{
if(p_temp2->next==NULL)
{
//printf("\n***timer 1_OCR intrrput is diabled\n");
Timer1_OCR_intDisable();
}
else
{
//重新设置定时器
Timer1_adjustInterval(p_temp3->ticks);
}
//取下head节点,释放空间
queue_head=p_temp3;
free(p_temp2);
}
else
{
p_temp1->next=p_temp3;
free(p_temp2);
}
}
return queue_head;
}
extern MAC_STATE_TYPE mac_current_state_saved;
void systimer_task_fire(char timer_reason)
{
switch(timer_reason)
{
case(BEACON_SEND):
//call beacon_send
Leds_yellowOn();
Leds_greenOn();
//Leds_redOn();
phy_channel_state=TRANSMITTING_FRAME;
//mlmeStartRequest(mac_pib_data.macPANId, ppib.phyCurrentChanel, mac_pib_data.macBeaconOrder, mac_pib_data.macSuperframeOrder, TRUE, mac_pib_data.macBattLifeExt, FALSE, FALSE, 0);
beacon_frame_send(TRUE);
printf("\n***system awake***\n");
break;
case(RECEIVE_BEACON):
//wait for beacon receive
//Leds_redOff();
//printf("\nsystimer interrupt");
if(!IS_COORDINATOR)
{
Leds_yellowOn();
Leds_greenOn();
Leds_redOn();
//if(mac_current_state_saved==MAC_STATE_ASSOC_WAIT_FOR_RESPONSE)
// mac_current_state=MAC_STATE_ASSOC_WAIT_FOR_RESPONSE;
//else
mac_current_state=MAC_STATE_IDLE;
phy_channel_state=WAITING_FOR_BEACON;
PLME_SET_TRX_STATE_request(RX_ON);
Is_received_beacon=FALSE;
//printf("\n***system waking***\n");
}
//Leds_greenToggle();
//head_of_systimer_queue=systimer_start_task(head_of_systimer_queue,RECEIVE_BEACON, 500) ;
//mlmeStartRequest(mac_pib_data.macPANId, ppib.phyCurrentChanel, mac_pib_data.macBeaconOrder, mac_pib_data.macSuperframeOrder, TRUE, mac_pib_data.macBattLifeExt, FALSE, FALSE, 0);
break;
case(CAP_OVER):
//inactive the system
phy_channel_state=INACTIVE_PERIOD;
//对于采用间接通信的response帧可能要跨超帧操作
mac_current_state_saved=mac_current_state;
mac_current_state=MAC_STATE_INACTIVE;
PLME_SET_TRX_STATE_request(FORCE_TRX_OFF);
//Is_received_beacon=FALSE;
Leds_greenOff();
Leds_yellowOff();
//Leds_redOff();
if((Is_received_beacon==FALSE)&&(!IS_COORDINATOR))
{
OS_post(synrequest_task);
//mac_current_state=MAC_STATE_SYNING;
//mac_current_state_saved=MAC_STATE_SYNING;
}
printf("\n***system sleeping***\n");
break;
case(SYN_WAITTING_FOR_BEACON):
printf("\nloss syn\n");
if(!IS_NETWORK_FORMED)
mac_current_state=MAC_STATE_ENERGY_SCAN_FINISHED;
else
{
loss_sync_number++;
if(loss_sync_number==10)
{
//printf("\ncannot syn to the network\n");
//向网络层报告同步失效信息
//mlmeSyncLossIndication(MAC_ENUM lossReason);
loss_sync_number=0;
}
else
mlmeSyncRequest(ppib.phyCurrentChanel,TRUE);
}
/*
loss_sync_number++;
if(loss_sync_number==10)
//--------------------------------------
//-------------加代码---------------
{
//printf("\ncannot syn to the network\n");
loss_sync_number=0;
}
else
{
//OS_post(synrequest_task);
mac_current_state=MAC_STATE_ENERGY_SCAN_FINISHED;
//mlmeScanRequest(ACTIVE_PASSIVE_SCAN, 0x00000008, 6);
Is_received_beacon=FALSE;
//mac_current_state=MAC_STATE_SYNING;
}*/
break;
case(CSMA_TIMING):
//test_variable++;
OS_post(CSMA_CA_DOING);
break;
default:
//Leds_greenToggle();
error("wrong systime reason!\n");
}
}
//---------------------------------------------------------------------------
// need some codes for timestamp,added by zhouqiang in 2005.12.04
//---------------------------------------------------------------------------
uint16_t get_timestamp16H(void)
{
return timestamp_H;
}
uint16_t get_timestamp16L(void)
{
return ICR1;
}
uint32_t get_timestamp32(void)
{
register union time_u time;
{ os_atomic_t _nesc_atomic = os_atomic_start();
{
time.low = ICR1;
time.high = timestamp_H;
}
os_atomic_end(_nesc_atomic); }
return time.full;
}
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