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feat(esp_modem): Add support to CMUX exit

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Closes https://github.com/espressif/esp-protocols/issues/37
This commit is contained in:
David Cermak
2022-05-26 17:31:22 +02:00
parent 1e0aefd72a
commit a16aab6979
5 changed files with 111 additions and 2 deletions
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11
components/esp_modem/include/cxx_include/esp_modem_cmux.hpp
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@ -64,6 +64,13 @@ public:
*/
[[nodiscard]] bool init();
/**
* @brief Closes CMux protocol and ejects attached terminal and buffer
* @return nullptr on failure
* tuple of the original terminal and buffer on success
*/
std::tuple<std::unique_ptr<Terminal>, std::unique_ptr<uint8_t[]>, size_t> deinit_and_eject();
/**
* @brief Sets read callback for the appropriate terminal
* @param inst Index of the terminal
@ -84,6 +91,9 @@ private:
static uint8_t fcs_crc(const uint8_t frame[6]); /*!< Utility to calculate FCS CRC */
void data_available(uint8_t *data, size_t len); /*!< Called when valid data available */
void send_sabm(size_t i); /*!< Sending initial SABM */
void send_disc(size_t i); /*!< Sending closing request for each virtual terminal */
void close_down(); /*!< Close up the control terminla (term=0) */
bool exit_cmux_protocol(); /*!< Sequence of exit of all virtual terms and control term */
bool on_cmux(uint8_t *data, size_t len); /*!< Called from terminal layer when raw CMUX protocol data available */
struct CMuxFrame; /*!< Forward declare the Frame struct, used in protocol decoders */
@ -147,6 +157,7 @@ public:
}
void start() override { }
void stop() override { }
CMux* get_cmux() { return cmux.get(); }
private:
std::shared_ptr<CMux> cmux;
size_t instance;

1
components/esp_modem/include/cxx_include/esp_modem_dte.hpp
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@ -98,6 +98,7 @@ private:
static const size_t GOT_LINE = SignalGroup::bit0; /*!< Bit indicating response available */
[[nodiscard]] bool setup_cmux(); /*!< Internal setup of CMUX mode */
[[nodiscard]] bool exit_cmux(); /*!< Exit of CMUX mode */
Lock lock{}; /*!< Locks DTE operations */
size_t buffer_size; /*!< Size of available DTE buffer */