JtagDecoder.h

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* libscopeprotocols                                                                                                    *
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* Copyright (c) 2012-2021 Andrew D. Zonenberg and contributors                                                         *
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#ifndef JtagDecoder_h
#define JtagDecoder_h
 
#include "../scopehal/PacketDecoder.h"
 
class JtagSymbol
{
public:
    enum JtagState
    {
        TEST_LOGIC_RESET,
        RUN_TEST_IDLE,
        SELECT_DR_SCAN,
        SELECT_IR_SCAN,
        CAPTURE_DR,
        CAPTURE_IR,
        SHIFT_DR,
        SHIFT_IR,
        EXIT1_DR,
        EXIT1_IR,
        PAUSE_DR,
        PAUSE_IR,
        EXIT2_DR,
        EXIT2_IR,
        UPDATE_DR,
        UPDATE_IR,
 
        UNKNOWN_0,
        UNKNOWN_1,
        UNKNOWN_2,
        UNKNOWN_3,
        UNKNOWN_4,
    };
 
    JtagSymbol()
    {}
 
    JtagSymbol(JtagSymbol::JtagState state, uint8_t idata, uint8_t odata, uint8_t len)
        : m_state(state)
        , m_idata(idata)
        , m_odata(odata)
        , m_len(len)
    {}
 
    static const char* GetName(JtagSymbol::JtagState state);
 
    bool operator== (const JtagSymbol& s) const
    {
        return
            (m_state == s.m_state) &&
            (m_idata == s.m_idata) &&
            (m_odata == s.m_odata) &&
            (m_len == s.m_len);
    }
 
    JtagState m_state;
    uint8_t m_idata;
    uint8_t m_odata;
    uint8_t m_len;
};
 
class JtagWaveform : public SparseWaveform<JtagSymbol>
{
public:
    JtagWaveform () : SparseWaveform<JtagSymbol>() {};
    virtual std::string GetText(size_t) override;
    virtual std::string GetColor(size_t) override;
};
 
class JtagDecoder : public PacketDecoder
{
public:
    JtagDecoder(const std::string& color);
 
    virtual void Refresh() override;
 
    static std::string GetProtocolName();
 
    virtual std::vector<std::string> GetHeaders() override;
 
    virtual bool ValidateChannel(size_t i, StreamDescriptor stream) override;
 
    PROTOCOL_DECODER_INITPROC(JtagDecoder)
 
protected:
};
 
#endif