I2CRegisterDecoder.h

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* libscopeprotocols                                                                                                    *
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* Copyright (c) 2012-2026 Andrew D. Zonenberg and contributors                                                         *
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#ifndef I2CRegisterDecoder_h
#define I2CRegisterDecoder_h
 
#include "../scopehal/PacketDecoder.h"
 
class I2CRegisterSymbol
{
public:
 
    enum EepromType
    {
        TYPE_SELECT_READ,       //select with read bit, ack'd
        TYPE_SELECT_WRITE,      //select with write bit, ack'd
        TYPE_ADDRESS,
        TYPE_DATA
    };
 
    I2CRegisterSymbol()
    {}
 
    I2CRegisterSymbol(EepromType type, uint32_t data)
     : m_type(type)
     , m_data(data)
    {}
 
    EepromType m_type;
    uint32_t m_data;
 
    bool operator== (const I2CRegisterSymbol& s) const
    {
        return (m_type == s.m_type) && (m_data == s.m_data);
    }
};
 
class I2CRegisterWaveform : public SparseWaveform<I2CRegisterSymbol>
{
public:
    I2CRegisterWaveform()
        : SparseWaveform<I2CRegisterSymbol>()
        , m_addrBytes(0)
    {
    }
    virtual std::string GetText(size_t) override;
    virtual std::string GetColor(size_t) override;
 
    void SetAddrBytes(int bytes)
    { m_addrBytes = bytes; }
 
protected:
    int m_addrBytes;
};
 
class I2CRegisterDecoder : public PacketDecoder
{
public:
    I2CRegisterDecoder(const std::string& color);
 
    virtual void Refresh(vk::raii::CommandBuffer& cmdBuf, std::shared_ptr<QueueHandle> queue) override;
 
    static std::string GetProtocolName();
 
    std::vector<std::string> GetHeaders() override;
 
    PROTOCOL_DECODER_INITPROC(I2CRegisterDecoder)
 
protected:
    FilterParameter& m_addrbytes;
    FilterParameter& m_baseaddr;
};
 
#endif