Ashin Walpola
0e9525162d
obu-firmware builds against vanetza-idf from microbu-esp32c5/external, but that tree was gitignored, so a clone of this repository could not build the firmware it ships. It is now committed here as ordinary files in its own folder, microbu-esp32c5/: the colleague's commit cf4b99f plus the V2X2MAP bridge's signature verification (--trust) used on the bench. Nothing is fetched from or pushed to the colleague's repository; this repository and its remotes carry everything. The folder's own .gitignore keeps build output, downloaded components and private key material out, as it did there; the committed file set is identical to that repository's tracked files. The ESP32-C5 is still flashed from obu-firmware/, which only takes vanetza-idf from microbu-esp32c5/, so the two stay separate folders. FLASHING.md says how to take a newer version of the colleague's tree (copy it over the folder, rebuild, test, commit).
55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
#ifndef DATA_RATES_802DOT11P_HPP_SL3RZPZO
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#define DATA_RATES_802DOT11P_HPP_SL3RZPZO
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#include <cstddef>
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namespace vanetza
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{
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namespace access
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{
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class DataRateG5
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{
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public:
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/**
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* Create data rate for ITS-G5 band
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* \param kbps kilo-bits per second transfer rate
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* \param cbits number of coded bits per symbol
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*/
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constexpr DataRateG5(unsigned kbps, unsigned cbits) :
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m_bytes_per_second(kbps * 1000 / 8),
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m_coded_bits_per_symbol(cbits) {}
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/**
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* Get tranfer rate as number of bytes per second
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* \return transfer rate
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*/
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unsigned bytes_per_second() const { return m_bytes_per_second; }
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/**
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* Calculate length of PHY data length
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* \param psdu size of PSDU, i.e. MPDU (MAC header + payload)
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* \return length in bytes
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*/
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std::size_t data_length(std::size_t psdu) const;
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private:
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unsigned m_bytes_per_second;
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unsigned m_coded_bits_per_symbol;
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};
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static const DataRateG5 G5_3Mbps { 3000, 48 };
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static const DataRateG5 G5_4dot5Mbps { 4500, 48 };
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static const DataRateG5 G5_6Mbps { 6000, 96 };
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static const DataRateG5 G5_9Mbps { 9000, 96 };
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static const DataRateG5 G5_12Mbps { 12000, 192 };
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static const DataRateG5 G5_18bps { 18000, 192 };
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static const DataRateG5 G5_24Mbps { 24000, 288 };
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static const DataRateG5 G5_27Mbps { 27000, 288 };
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} // namespace access
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} // namespace vanetza
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#endif /* DATA_RATES_802DOT11P_HPP_SL3RZPZO */
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