I2CEepromDecoder.h

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* libscopeprotocols                                                                                                    *
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* Copyright (c) 2012-2022 Andrew D. Zonenberg and contributors                                                         *
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#ifndef I2CEepromDecoder_h
#define I2CEepromDecoder_h
 
#include "../scopehal/PacketDecoder.h"
 
class I2CEepromSymbol
{
public:
 
    enum EepromType
    {
        TYPE_SELECT_READ,       //select with read bit, ack'd
        TYPE_SELECT_WRITE,      //select with write bit, ack'd
        TYPE_POLL_BUSY,         //select with read or write bit, nak'd
        TYPE_POLL_OK,           //poll success
        TYPE_ADDRESS,
        TYPE_DATA
    };
 
    I2CEepromSymbol()
    {}
 
    I2CEepromSymbol(EepromType type, uint32_t data)
     : m_type(type)
     , m_data(data)
    {}
 
    EepromType m_type;
    uint32_t m_data;
 
    bool operator== (const I2CEepromSymbol& s) const
    {
        return (m_type == s.m_type) && (m_data == s.m_data);
    }
};
 
class I2CEepromWaveform : public SparseWaveform<I2CEepromSymbol>
{
public:
    I2CEepromWaveform (FilterParameter& raw_bits) : SparseWaveform<I2CEepromSymbol>(), m_raw_bits(raw_bits) {};
    virtual std::string GetText(size_t) override;
    virtual std::string GetColor(size_t) override;
 
private:
    FilterParameter& m_raw_bits;
};
 
class I2CEepromDecoder : public PacketDecoder
{
public:
    I2CEepromDecoder(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;
 
    virtual bool CanMerge(Packet* first, Packet* cur, Packet* next) override;
    virtual Packet* CreateMergedHeader(Packet* pack, size_t i) override;
 
    PROTOCOL_DECODER_INITPROC(I2CEepromDecoder)
 
protected:
    std::string m_memtypename;
    std::string m_baseaddrname;
    std::string m_addrpinname;
};
 
#endif