515 lines
9.7 KiB
C++
515 lines
9.7 KiB
C++
#include "Kernel\Sys.h"
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#include "Device\Port.h"
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#include <typeinfo>
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using namespace ::std;
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/******************************** Port ********************************/
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#if DEBUG
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// 保护引脚，别的功能要使用时将会报错。返回是否保护成功
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static bool Port_Reserve(Pin pin, bool flag);
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#endif
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// 端口基本功能
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#define REGION_Port 1
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#ifdef REGION_Port
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Port::Port()
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{
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_Pin = P0;
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Opened = false;
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Index = 0;
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State = nullptr;
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}
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#ifndef TINY
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Port::~Port()
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{
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Close();
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}
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#endif
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String Port::ToString() const
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{
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String str;
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str += 'P';
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if (_Pin == P0)
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{
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str += '0';
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}
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else
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{
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str += (char)('A' + (_Pin >> 4));
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str += (byte)(_Pin & 0x0F);
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}
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return str;
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}
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// 单一引脚初始化
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Port& Port::Set(Pin pin)
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{
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// 如果引脚不变，则不做处理
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if (pin == _Pin) return *this;
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#ifndef TINY
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// 释放已有引脚的保护
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if (_Pin != P0) Close();
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#endif
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_Pin = pin;
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return *this;
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}
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bool Port::Empty() const
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{
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if (_Pin != P0) return false;
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return true;
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}
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void Port::Clear()
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{
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_Pin = P0;
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}
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// 确定配置,确认用对象内部的参数进行初始化
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bool Port::Open()
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{
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if (_Pin == P0) return false;
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if (Opened) return true;
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TS("Port::Open");
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#if DEBUG
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// 保护引脚
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auto name = typeid(*this).name();
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while (*name >= '0' && *name <= '9') name++;
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debug_printf("%s", name);
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Port_Reserve(_Pin, true);
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#endif
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Opening();
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Opened = true;
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return true;
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}
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void Port::Close()
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{
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if (!Opened) return;
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if (_Pin == P0) return;
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OnClose();
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#if DEBUG
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// 保护引脚
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auto name = typeid(*this).name();
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while (*name >= '0' && *name <= '9') name++;
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debug_printf("%s", name);
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Port_Reserve(_Pin, false);
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debug_printf("\r\n");
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#endif
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Opened = false;
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}
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WEAK void Port::Opening() { OnOpen(nullptr); }
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WEAK void Port::OnOpen(void* param) {}
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WEAK void Port::OnClose() {}
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WEAK void Port::RemapConfig(uint param, bool sta) {}
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WEAK void Port::AFConfig(GPIO_AF GPIO_AF) const {}
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#endif
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// 端口引脚保护
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#if DEBUG
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// 引脚保留位，记录每个引脚是否已经被保留，禁止别的模块使用
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// !!!注意，不能全零，否则可能会被当作zeroinit而不是copy，导致得不到初始化
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static ushort Reserved[] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0xFF };
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// 保护引脚，别的功能要使用时将会报错。返回是否保护成功
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bool Port_Reserve(Pin pin, bool flag)
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{
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debug_printf("::");
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int port = pin >> 4, bit = 1 << (pin & 0x0F);
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if (flag) {
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if (Reserved[port] & bit) {
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// 增加针脚已经被保护的提示，很多地方调用ReservePin而不写日志，得到False后直接抛异常
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debug_printf("P%c%d 已被打开", _PIN_NAME(pin));
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return false; // already reserved
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}
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Reserved[port] |= bit;
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debug_printf("打开 P%c%d", _PIN_NAME(pin));
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}
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else {
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Reserved[port] &= ~bit;
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debug_printf("关闭 P%c%d", _PIN_NAME(pin));
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}
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return true;
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}
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/*// 引脚是否被保护
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bool Port::IsBusy(Pin pin)
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{
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int port = pin >> 4, sh = pin & 0x0F;
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return (Reserved[port] >> sh) & 1;
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}*/
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#endif
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/******************************** OutputPort ********************************/
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// 输出端口
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#define REGION_Output 1
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#ifdef REGION_Output
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OutputPort::OutputPort() : Port() { }
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OutputPort::OutputPort(Pin pin) : OutputPort(pin, 2) { }
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OutputPort::OutputPort(Pin pin, byte invert, bool openDrain, byte speed) : Port()
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{
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OpenDrain = openDrain;
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Speed = speed;
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Invert = invert;
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if (pin != P0)
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{
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Set(pin);
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Open();
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}
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}
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OutputPort& OutputPort::Init(Pin pin, bool invert)
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{
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Port::Set(pin);
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Invert = invert;
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return *this;
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}
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void OutputPort::OnOpen(void* param)
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{
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TS("OutputPort::OnOpen");
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#if DEBUG
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debug_printf(" %dM", Speed);
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if (OpenDrain)
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debug_printf(" 开漏");
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else
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debug_printf(" 推挽");
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bool fg = false;
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#endif
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// 根据倒置情况来获取初始状态，自动判断是否倒置
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bool rs = Port::Read();
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if (Invert > 1)
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{
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Invert = rs;
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#if DEBUG
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fg = true;
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#endif
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}
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#if DEBUG
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if (Invert)
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{
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if (fg)
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debug_printf(" 自动倒置");
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else
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debug_printf(" 倒置");
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}
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#endif
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#if DEBUG
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debug_printf(" 初始电平=%d \r\n", rs);
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#endif
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Port::OnOpen(param);
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OpenPin(param);
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}
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WEAK bool OutputPort::ReadInput() const
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{
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if (Empty()) return false;
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bool v = Port::Read();
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if (Invert)return !v;
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return v;
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}
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void OutputPort::Up(int ms) const
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{
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if (Empty()) return;
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Write(true);
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Sys.Sleep(ms);
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Write(false);
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}
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void OutputPort::Down(int ms) const
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{
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if (Empty()) return;
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Write(false);
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Sys.Sleep(ms);
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Write(true);
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}
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void OutputPort::Blink(int times, int ms) const
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{
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if (Empty()) return;
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bool flag = true;
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for (int i = 0; i < times; i++)
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{
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Write(flag);
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flag = !flag;
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Sys.Sleep(ms);
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}
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Write(false);
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}
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/******************************** AlternatePort ********************************/
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AlternatePort::AlternatePort() : OutputPort(P0, false, false) { }
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AlternatePort::AlternatePort(Pin pin) : OutputPort(P0, false, false)
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{
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if (pin != P0)
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{
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Set(pin);
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Open();
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}
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}
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AlternatePort::AlternatePort(Pin pin, byte invert, bool openDrain, byte speed)
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: OutputPort(P0, invert, openDrain, speed)
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{
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if (pin != P0)
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{
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Set(pin);
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Open();
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}
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}
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WEAK void AlternatePort::OpenPin(void* param) { OutputPort::OpenPin(param); }
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#endif
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/******************************** InputPort ********************************/
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// 输入端口
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#define REGION_Input 1
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#ifdef REGION_Input
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InputPort::InputPort() : InputPort(P0) { }
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InputPort::InputPort(Pin pin, bool floating, PuPd pull) : Port()
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{
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_task = 0;
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_Value = 0;
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_Start = 0;
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PressTime = 0;
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_Last = 0;
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if (pin != P0)
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{
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Set(pin);
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Open();
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}
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}
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InputPort::~InputPort()
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{
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Sys.RemoveTask(_task);
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}
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InputPort& InputPort::Init(Pin pin, bool invert)
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{
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Port::Set(pin);
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Invert = invert;
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return *this;
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}
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// 读取本组所有引脚，任意脚为true则返回true，主要为单一引脚服务
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bool InputPort::Read() const
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{
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bool v = Port::Read();
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if (Invert)return !v;
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return v;
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}
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#if DEBUG
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int InputPort_Total = 0;
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int InputPort_Error = 0;
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#endif
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void InputPort::OnPress(bool down)
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{
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auto v = down ? Rising : Falling;
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// 在GD32F103VE上，按下PE13，有5%左右几率触发PE14的弹起中断，且示波器没有检测到PE14按键有波形
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// 上述问题仅出现于0801，在0802上没有重现，两个按键是PE9/PE14
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if (_Value == v) return;
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/*
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！！！注意：
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有些按钮可能会出现110现象，也就是按下的时候1（正常），弹起的时候连续的1和0（不正常）。
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*/
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#if DEBUG
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InputPort_Total++;
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#endif
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int now = (int)Sys.Ms();
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// 这一次触发离上一次太近，算作抖动忽略掉
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if (_Last > 0 && ShakeTime > 0 && now - _Last < ShakeTime)
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{
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// 撤消上一次准备执行的动作，并取消这一次事件
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_Value = 0;
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#if DEBUG
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InputPort_Error++;
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#endif
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return;
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}
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_Last = now;
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//_Value |= v;
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// 不能或运算，否则轮询时会连续触发，具体原因未清楚
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_Value = v;
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if (down)
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_Start = now;
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else
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PressTime = (ushort)(now - _Start);
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if (HardEvent || !_IRQ)
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Press(*this, down);
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else
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// 在抖动时间内，如果下一次信号到来，还有机会撤消
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Sys.SetTask(_task, true, ShakeTime);
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}
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void InputPort::InputTask(void* param)
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{
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auto port = (InputPort*)param;
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byte v = port->_Value;
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port->_Value = 0;
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if (!v) return;
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//v &= port->Mode;
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if (v & Rising) port->Press(*port, true);
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if (v & Falling) port->Press(*port, false);
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}
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void InputPort::InputNoIRQTask(void* param)
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{
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auto port = (InputPort*)param;
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auto val = port->Read();
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port->OnPress(val);
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}
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void InputPort::OnOpen(void* param)
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{
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TS("InputPort::OnOpen");
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// 如果不是硬件事件，则默认使用20ms抖动
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if (!HardEvent && ShakeTime == 0) ShakeTime = 20;
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#if DEBUG
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debug_printf(" 抖动=%dms", ShakeTime);
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if (Floating)
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debug_printf(" 浮空");
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else if (Pull == UP)
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debug_printf(" 上升沿");
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else if (Pull == DOWN)
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debug_printf(" 下降沿");
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//if(Mode & Rising) debug_printf(" 按下");
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//if(Mode & Falling) debug_printf(" 弹起");
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bool fg = false;
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#endif
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Port::OnOpen(param);
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OpenPin(param);
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// 根据倒置情况来获取初始状态，自动判断是否倒置
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bool rs = Port::Read();
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if (Invert > 1)
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{
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Invert = rs;
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#if DEBUG
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fg = true;
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#endif
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// 设置按键初始状态，避免开始轮询时产生一次误触发
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_Value = Falling;
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}
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#if DEBUG
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if (Invert)
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{
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if (fg)
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debug_printf(" 自动倒置");
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else
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debug_printf(" 倒置");
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}
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#endif
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#if DEBUG
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debug_printf(" 初始电平=%d \r\n", rs);
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#endif
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}
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void InputPort::OnClose()
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{
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Port::OnClose();
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ClosePin();
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}
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// 输入轮询时间间隔。默认100ms，允许外部修改
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uint InputPort_Polling = 100;
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bool InputPort::UsePress()
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{
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assert(_Pin != P0, "输入注册必须先设置引脚");
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_IRQ = OnRegister();
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if (!_task && !HardEvent)
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{
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// 如果硬件中断注册失败，则采用10ms定时读取
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if (_IRQ)
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_task = Sys.AddTask(InputTask, this, -1, -1, "输入事件");
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else
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{
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// 设置按键初始状态，避免开始轮询时产生一次误触发
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//_Value = Read() ? Rising : Falling;
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_task = Sys.AddTask(InputNoIRQTask, this, InputPort_Polling, InputPort_Polling, "输入轮询");
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}
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}
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return true;
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}
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#endif
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/******************************** AnalogInPort ********************************/
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void AnalogInPort::OnOpen(void* param)
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{
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#if DEBUG
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debug_printf("\r\n");
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#endif
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Port::OnOpen(param);
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OpenPin(param);
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}
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