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ot::Spinel::SpiFrame class
Defines a SPI frame.
Syntax
class SpiFrame
{
public:
enum
{
kHeaderSize = 5,
};
explicit SpiFrame(uint8_t *aBuffer)
: mBuffer(aBuffer)
{
}
uint8_t *GetData(void) { return mBuffer + kHeaderSize; }
bool IsValid(void) const { return ((mBuffer[kIndexFlagByte] & kFlagPatternMask) == kFlagPattern); }
bool IsResetFlagSet(void) const { return ((mBuffer[kIndexFlagByte] & kFlagReset) == kFlagReset); }
void SetHeaderFlagByte(bool aResetFlag) { mBuffer[kIndexFlagByte] = kFlagPattern | (aResetFlag ? kFlagReset : 0); }
uint8_t GetHeaderFlagByte(void) const { return mBuffer[kIndexFlagByte]; }
void SetHeaderAcceptLen(uint16_t aAcceptLen)
{
Lib::Utils::LittleEndian::WriteUint16(aAcceptLen, mBuffer + kIndexAcceptLen);
}
uint16_t GetHeaderAcceptLen(void) const { return Lib::Utils::LittleEndian::ReadUint16(mBuffer + kIndexAcceptLen); }
void SetHeaderDataLen(uint16_t aDataLen)
{
Lib::Utils::LittleEndian::WriteUint16(aDataLen, mBuffer + kIndexDataLen);
}
uint16_t GetHeaderDataLen(void) const { return Lib::Utils::LittleEndian::ReadUint16(mBuffer + kIndexDataLen); }
private:
enum
{
kIndexFlagByte = 0,
kIndexAcceptLen = 1,
kIndexDataLen = 3,
kFlagReset = (1 << 7),
kFlagPattern = 0x02,
kFlagPatternMask = 0x03,
};
uint8_t *mBuffer;
};
Fields
Field
Declared as
uint8_t *