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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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15
extmod/btstack/modbluetooth_btstack.c
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@@ -414,30 +414,21 @@ STATIC void btstack_packet_handler(uint8_t packet_type, uint8_t *packet, uint8_t
uint16_t value_handle = gatt_event_characteristic_value_query_result_get_value_handle(packet);
uint16_t len = gatt_event_characteristic_value_query_result_get_value_length(packet);
const uint8_t *data = gatt_event_characteristic_value_query_result_get_value(packet);
mp_uint_t atomic_state;
len = mp_bluetooth_gattc_on_data_available_start(MP_BLUETOOTH_IRQ_GATTC_READ_RESULT, conn_handle, value_handle, len, &atomic_state);
mp_bluetooth_gattc_on_data_available_chunk(data, len);
mp_bluetooth_gattc_on_data_available_end(atomic_state);
mp_bluetooth_gattc_on_data_available(MP_BLUETOOTH_IRQ_GATTC_READ_RESULT, conn_handle, value_handle, &data, &len, 1);
} else if (event_type == GATT_EVENT_NOTIFICATION) {
DEBUG_printf(" --> gatt notification\n");
uint16_t conn_handle = gatt_event_notification_get_handle(packet);
uint16_t value_handle = gatt_event_notification_get_value_handle(packet);
uint16_t len = gatt_event_notification_get_value_length(packet);
const uint8_t *data = gatt_event_notification_get_value(packet);
mp_uint_t atomic_state;
len = mp_bluetooth_gattc_on_data_available_start(MP_BLUETOOTH_IRQ_GATTC_NOTIFY, conn_handle, value_handle, len, &atomic_state);
mp_bluetooth_gattc_on_data_available_chunk(data, len);
mp_bluetooth_gattc_on_data_available_end(atomic_state);
mp_bluetooth_gattc_on_data_available(MP_BLUETOOTH_IRQ_GATTC_NOTIFY, conn_handle, value_handle, &data, &len, 1);
} else if (event_type == GATT_EVENT_INDICATION) {
DEBUG_printf(" --> gatt indication\n");
uint16_t conn_handle = gatt_event_indication_get_handle(packet);
uint16_t value_handle = gatt_event_indication_get_value_handle(packet);
uint16_t len = gatt_event_indication_get_value_length(packet);
const uint8_t *data = gatt_event_indication_get_value(packet);
mp_uint_t atomic_state;
len = mp_bluetooth_gattc_on_data_available_start(MP_BLUETOOTH_IRQ_GATTC_INDICATE, conn_handle, value_handle, len, &atomic_state);
mp_bluetooth_gattc_on_data_available_chunk(data, len);
mp_bluetooth_gattc_on_data_available_end(atomic_state);
mp_bluetooth_gattc_on_data_available(MP_BLUETOOTH_IRQ_GATTC_INDICATE, conn_handle, value_handle, &data, &len, 1);
} else if (event_type == GATT_EVENT_CAN_WRITE_WITHOUT_RESPONSE) {
uint16_t conn_handle = gatt_event_can_write_without_response_get_handle(packet);
DEBUG_printf(" --> gatt can write without response %d\n", conn_handle);