287 lines
5.6 KiB
C++
287 lines
5.6 KiB
C++
#include "Sys.h"
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#include "Time.h"
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//#include "WatchDog.h"
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//#include "Platform\stm32.h"
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TSys Sys;
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const TTime Time;
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#if defined(BOOT) || defined(APP)
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//#pragma location = 0x20000000
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struct HandlerRemap StrBoot __attribute__((at(0x2000fff0)));
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#endif
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extern uint __heap_base;
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extern uint __heap_limit;
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extern uint __initial_sp;
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extern uint __microlib_freelist;
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extern uint __microlib_freelist_initialised;
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#ifndef BIT
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#define BIT(x) (1 << (x))
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#endif
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#if !defined(TINY) && defined(STM32F0)
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#pragma arm section code = "SectionForSys"
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#endif
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TSys::TSys()
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{
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OnInit();
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OnSleep = nullptr;
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Code = 0x0000;
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Ver = 0x0300;
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#ifndef TINY
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Name = "SmartOS";
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Company = "NewLife_Embedded_Team";
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Interrupt.Init();
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#endif
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Started = false;
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}
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#pragma arm section code
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void ShowTime(void* param)
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{
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debug_printf("\r");
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DateTime::Now().Show();
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debug_printf(" ");
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}
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void TSys::Init(void)
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{
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InitClock();
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// 必须在系统主频率确定以后再初始化时钟
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((TTime&)Time).Init();
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}
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void TSys::ShowInfo() const
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{
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#if DEBUG
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//byte* ver = (byte*)&Version;
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debug_printf("%s::%s Code:%04X ", Company, Name, Code);
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//debug_printf("Ver:%x.%x Build:%s\r\n", *ver++, *ver++, BuildTime);
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Version v(0, 0, Ver, 0);
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debug_printf("Ver:%s Build:%s\r\n", v.ToString().GetBuffer(), v.Compile().ToString().GetBuffer());
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OnShowInfo();
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debug_printf("ChipID:");
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ByteArray(ID, ArrayLength(ID)).Show();
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// 新的字符串这样用会导致第一个字符被清零
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//debug_printf("\t %s", ID);
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String str;
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str.Copy(0, ID, 12);
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str.Show(true);
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debug_printf("Time : ");
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DateTime::Now().Show(true);
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debug_printf("Support: http://www.WsLink.cn\r\n");
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debug_printf("\r\n");
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#endif
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}
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#define __TASK__MODULE__ 1
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#ifdef __TASK__MODULE__
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// 任务
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#include "Task.h"
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// 创建任务，返回任务编号。dueTime首次调度时间ms，period调度间隔ms，-1表示仅处理一次
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uint TSys::AddTask(Action func, void* param, int dueTime, int period, cstring name) const
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{
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return Task::Scheduler()->Add(func, param, dueTime, period, name);
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}
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void TSys::RemoveTask(uint& taskid) const
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{
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if(taskid) Task::Scheduler()->Remove(taskid);
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taskid = 0;
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}
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#if !defined(TINY) && defined(STM32F0) && defined(DEBUG)
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#pragma arm section code = "SectionForSys"
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#endif
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bool TSys::SetTask(uint taskid, bool enable, int msNextTime) const
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{
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if(!taskid) return false;
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auto task = Task::Get(taskid);
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if(!task) return false;
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task->Set(enable, msNextTime);
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return true;
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}
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// 改变任务周期
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bool TSys::SetTaskPeriod(uint taskid, int period) const
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{
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if(!taskid) return false;
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auto task = Task::Get(taskid);
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if(!task) return false;
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if(period)
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{
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task->Period = period;
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// 改变任务周期的同时，重新计算下一次调度时间NextTime，让它立马生效
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// 否则有可能系统按照上一次计算好的NextTime再调度一次任务
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task->NextTime = Ms() + period;
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}
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else
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task->Enable = false;
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return true;
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}
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void TSys::Start()
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{
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OnStart();
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Started = true;
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#if DEBUG
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//AddTask(ShowTime, nullptr, 2000000, 2000000);
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#endif
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Task::Scheduler()->Start();
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}
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void TimeSleep(uint us)
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{
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TS("Sys::TimeSleep");
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// 在这段时间里面，去处理一下别的任务
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if(Sys.Started && us != 0 && us >= 50)
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{
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auto sc = Task::Scheduler();
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// 记录当前正在执行任务
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auto task = sc->Current;
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TimeCost tc;
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// 实际可用时间。100us一般不够调度新任务，留给硬件等待
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int total = us;
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/*int ts = sc->Times;
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int tid = 0;
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int tms = 0;
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if(task)
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{
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tid = task->ID;
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tms = task->Times;
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}
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debug_printf("Sys::Sleep=> taskid=%d/%d us=%d \r\n", tid, tms, us);*/
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bool cancel = false;
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// 如果休眠时间足够长，允许多次调度其它任务
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while(true)
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{
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// 统计这次调度的时间，累加作为当前任务的休眠时间
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TimeCost tc2;
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sc->Execute(total / 1000, cancel);
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total -= tc2.Elapsed();
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if(total <= 0) break;
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}
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int ct = tc.Elapsed();
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//debug_printf("Sys::Sleep<= taskid=%d/%d us=%d total=%d ct=%d Times=%d \r\n", tid, tms, us, total, ct, sc->Times - ts);
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if(task)
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{
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sc->Current = task;
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task->SleepTime += ct;
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}
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if(ct >= us) return;
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us -= ct;
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}
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if(us) Time.Delay(us);
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}
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// 系统启动后的毫秒数
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UInt64 TSys::Ms() const { return Time.Current(); }
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// 系统绝对当前时间，秒
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uint TSys::Seconds() const { return Time.Seconds + Time.BaseSeconds; }
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// 当前时间
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DateTime DateTime::Now()
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{
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DateTime dt(Sys.Seconds());
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dt.Ms = Sys.Ms();
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return dt;
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}
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void TSys::Sleep(uint ms) const
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{
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// 优先使用线程级睡眠
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if(OnSleep)
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OnSleep(ms);
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else
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{
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#if DEBUG
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if(ms > 1000) debug_printf("Sys::Sleep 设计错误，睡眠%dms太长！", ms);
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#endif
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TimeSleep(ms * 1000);
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}
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}
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void TSys::Delay(uint us) const
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{
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// 如果延迟微秒数太大，则使用线程级睡眠
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if(OnSleep && us >= 2000)
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OnSleep((us + 500) / 1000);
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else
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{
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#if DEBUG
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if(us > 1000000) debug_printf("Sys::Sleep 设计错误，睡眠%dus太长！", us);
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#endif
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if(us < 50)
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Time.Delay(us);
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else
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TimeSleep(us);
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}
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}
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#endif
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#pragma arm section code
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/****************系统跟踪****************/
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//#if DEBUG
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#include "Port.h"
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static OutputPort* _trace = nullptr;
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//#endif
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void TSys::InitTrace(void* port) const
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{
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//#if DEBUG
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_trace = (OutputPort*)port;
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//#endif
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}
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void TSys::Trace(int times) const
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{
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//#if DEBUG
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if(_trace)
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{
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while(times--) *_trace = !*_trace;
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}
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//#endif
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}
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