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extmod/modbluetooth: Implement MTU.

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This commit is contained in:
Jim Mussared
2020-09-11 18:12:36 +10:00
parent f271b96b5c
commit 857e2c8fd5
4 changed files with 116 additions and 4 deletions
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12
extmod/modbluetooth.h
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@@ -100,6 +100,7 @@
#define MP_BLUETOOTH_IRQ_GATTC_NOTIFY (18)
#define MP_BLUETOOTH_IRQ_GATTC_INDICATE (19)
#define MP_BLUETOOTH_IRQ_GATTS_INDICATE_DONE (20)
#define MP_BLUETOOTH_IRQ_MTU_EXCHANGED (21)
#define MP_BLUETOOTH_ADDRESS_MODE_PUBLIC (0)
#define MP_BLUETOOTH_ADDRESS_MODE_RANDOM (1)
@@ -131,6 +132,7 @@ _IRQ_GATTC_WRITE_DONE = const(17)
_IRQ_GATTC_NOTIFY = const(18)
_IRQ_GATTC_INDICATE = const(19)
_IRQ_GATTS_INDICATE_DONE = const(20)
_IRQ_MTU_EXCHANGED = const(21)
*/
// Common UUID type.
@@ -212,6 +214,10 @@ int mp_bluetooth_gatts_set_buffer(uint16_t value_handle, size_t len, bool append
// Disconnect from a central or peripheral.
int mp_bluetooth_gap_disconnect(uint16_t conn_handle);
// Set/get the MTU that we will respond to a MTU exchange with.
int mp_bluetooth_get_preferred_mtu(void);
int mp_bluetooth_set_preferred_mtu(uint16_t mtu);
#if MICROPY_PY_BLUETOOTH_ENABLE_CENTRAL_MODE
// Start a discovery (scan). Set duration to zero to run continuously.
int mp_bluetooth_gap_scan_start(int32_t duration_ms, int32_t interval_us, int32_t window_us, bool active_scan);
@@ -236,6 +242,9 @@ int mp_bluetooth_gattc_read(uint16_t conn_handle, uint16_t value_handle);
// Write the value to the remote peripheral.
int mp_bluetooth_gattc_write(uint16_t conn_handle, uint16_t value_handle, const uint8_t *value, size_t *value_len, unsigned int mode);
// Initiate MTU exchange for a specific connection using the preferred MTU.
int mp_bluetooth_gattc_exchange_mtu(uint16_t conn_handle);
#endif
/////////////////////////////////////////////////////////////////////////////
@@ -255,6 +264,9 @@ void mp_bluetooth_gatts_on_indicate_complete(uint16_t conn_handle, uint16_t valu
bool mp_bluetooth_gatts_on_read_request(uint16_t conn_handle, uint16_t value_handle);
#endif
// Call this when an MTU exchange completes.
void mp_bluetooth_gatts_on_mtu_exchanged(uint16_t conn_handle, uint16_t value);
#if MICROPY_PY_BLUETOOTH_ENABLE_CENTRAL_MODE
// Notify modbluetooth that scan has finished, either timeout, manually, or by some other action (e.g. connecting).
void mp_bluetooth_gap_on_scan_complete(void);