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extmod/modbluetooth: Combine gattc-data-available callbacks into one.

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Instead of having the stack indicate a "start", "data"..., "end", pass
through the data in one callback as an array of chunks of data.

This is because the upcoming non-ringbuffer modbluetooth implementation
cannot buffer the data in the ringbuffer and requires instead a single
callback with all the data, to pass to the Python callback.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Jim Mussared
2020-11-03 17:46:11 +11:00
committed by Damien George
parent 4559bcb467
commit c398e46b29
4 changed files with 53 additions and 44 deletions
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6
extmod/modbluetooth.h
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@@ -289,11 +289,7 @@ void mp_bluetooth_gattc_on_descriptor_result(uint16_t conn_handle, uint16_t hand
void mp_bluetooth_gattc_on_discover_complete(uint8_t event, uint16_t conn_handle, uint16_t status);
// Notify modbluetooth that a read has completed with data (or notify/indicate data available, use `event` to disambiguate).
// Note: these functions are to be called in a group protected by MICROPY_PY_BLUETOOTH_ENTER/EXIT.
// _start returns the number of bytes to submit to the calls to _chunk, followed by a call to _end.
size_t mp_bluetooth_gattc_on_data_available_start(uint8_t event, uint16_t conn_handle, uint16_t value_handle, size_t data_len, mp_uint_t *atomic_state_out);
void mp_bluetooth_gattc_on_data_available_chunk(const uint8_t *data, size_t data_len);
void mp_bluetooth_gattc_on_data_available_end(mp_uint_t atomic_state);
void mp_bluetooth_gattc_on_data_available(uint8_t event, uint16_t conn_handle, uint16_t value_handle, const uint8_t **data, uint16_t *data_len, size_t num);
// Notify modbluetooth that a read or write operation has completed.
void mp_bluetooth_gattc_on_read_write_status(uint8_t event, uint16_t conn_handle, uint16_t value_handle, uint16_t status);