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extmod/modbluetooth: Add _IRQ_CONNECTION_UPDATE event. 

This allows the application to be notified of changes to the connection
interval, connection latency and supervision timeout.

Signed-off-by: Jim Mussared <jim.mussared@gmail.com>
This commit is contained in:
Andrew Leech 2020-11-14 19:40:25 +11:00 committed by Damien George
parent f2a9a0ac41
commit c70665fb0b
4 changed files with 72 additions and 19 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

16
extmod/btstack/modbluetooth_btstack.c
View File

@ -295,7 +295,8 @@ STATIC void btstack_packet_handler(uint8_t packet_type, uint8_t *packet, uint8_t
if (event_type == HCI_EVENT_LE_META) {
DEBUG_printf(" --> hci le meta\n");
if (hci_event_le_meta_get_subevent_code(packet) == HCI_SUBEVENT_LE_CONNECTION_COMPLETE) {
switch (hci_event_le_meta_get_subevent_code(packet)) {
case HCI_SUBEVENT_LE_CONNECTION_COMPLETE: {
uint16_t conn_handle = hci_subevent_le_connection_complete_get_connection_handle(packet);
uint8_t addr_type = hci_subevent_le_connection_complete_get_peer_address_type(packet);
bd_addr_t addr;
@ -309,6 +310,19 @@ STATIC void btstack_packet_handler(uint8_t packet_type, uint8_t *packet, uint8_t
irq_event = MP_BLUETOOTH_IRQ_CENTRAL_CONNECT;
}
mp_bluetooth_gap_on_connected_disconnected(irq_event, conn_handle, addr_type, addr);
break;
}
case HCI_SUBEVENT_LE_CONNECTION_UPDATE_COMPLETE: {
uint8_t status = hci_subevent_le_connection_update_complete_get_status(packet);
uint16_t conn_handle = hci_subevent_le_connection_update_complete_get_connection_handle(packet);
uint16_t conn_interval = hci_subevent_le_connection_update_complete_get_conn_interval(packet);
uint16_t conn_latency = hci_subevent_le_connection_update_complete_get_conn_latency(packet);
uint16_t supervision_timeout = hci_subevent_le_connection_update_complete_get_supervision_timeout(packet);
DEBUG_printf("- LE Connection %04x: connection update - connection interval %u.%02u ms, latency %u, timeout %u\n",
conn_handle, conn_interval * 125 / 100, 25 * (conn_interval & 3), conn_latency, supervision_timeout);
mp_bluetooth_gap_on_connection_update(conn_handle, conn_interval, conn_latency, supervision_timeout, status);
break;
}
}
} else if (event_type == BTSTACK_EVENT_STATE) {
uint8_t state = btstack_event_state_get_state(packet);

21
extmod/modbluetooth.c
View File

@ -979,6 +979,9 @@ STATIC mp_obj_t bluetooth_ble_invoke_irq(mp_obj_t none_in) {
if (event == MP_BLUETOOTH_IRQ_CENTRAL_CONNECT || event == MP_BLUETOOTH_IRQ_PERIPHERAL_CONNECT || event == MP_BLUETOOTH_IRQ_CENTRAL_DISCONNECT || event == MP_BLUETOOTH_IRQ_PERIPHERAL_DISCONNECT) {
// conn_handle, addr_type, addr
ringbuf_extract(&o->ringbuf, data_tuple, 1, 1, &o->irq_data_addr, 0, NULL, NULL);
} else if (event == MP_BLUETOOTH_IRQ_CONNECTION_UPDATE) {
// conn_handle, conn_interval, conn_latency, supervision_timeout, status
ringbuf_extract(&o->ringbuf, data_tuple, 5, 0, NULL, 0, NULL, NULL);
} else if (event == MP_BLUETOOTH_IRQ_GATTS_WRITE) {
// conn_handle, value_handle
ringbuf_extract(&o->ringbuf, data_tuple, 2, 0, NULL, 0, NULL, NULL);
@ -1093,6 +1096,11 @@ void mp_bluetooth_gap_on_connected_disconnected(uint8_t event, uint16_t conn_han
invoke_irq_handler(event, &conn_handle, 1, &addr_type, 1, addr, NULL_I8, 0, NULL_UUID, NULL_DATA, 0);
}
void mp_bluetooth_gap_on_connection_update(uint16_t conn_handle, uint16_t conn_interval, uint16_t conn_latency, uint16_t supervision_timeout, uint16_t status) {
uint16_t args[] = {conn_handle, conn_interval, conn_latency, supervision_timeout, status};
invoke_irq_handler(MP_BLUETOOTH_IRQ_CONNECTION_UPDATE, args, 5, NULL_U8, 0, NULL_ADDR, NULL_I8, 0, NULL_UUID, NULL_DATA, 0);
}
void mp_bluetooth_gatts_on_write(uint16_t conn_handle, uint16_t value_handle) {
uint16_t args[] = {conn_handle, value_handle};
invoke_irq_handler(MP_BLUETOOTH_IRQ_GATTS_WRITE, args, 2, NULL_U8, 0, NULL_ADDR, NULL_I8, 0, NULL_UUID, NULL_DATA, 0);
@ -1276,6 +1284,19 @@ void mp_bluetooth_gap_on_connected_disconnected(uint8_t event, uint16_t conn_han
schedule_ringbuf(atomic_state);
}
void mp_bluetooth_gap_on_connection_update(uint16_t conn_handle, uint16_t conn_interval, uint16_t conn_latency, uint16_t supervision_timeout, uint16_t status) {
MICROPY_PY_BLUETOOTH_ENTER
mp_obj_bluetooth_ble_t *o = MP_OBJ_TO_PTR(MP_STATE_VM(bluetooth));
if (enqueue_irq(o, 2 + 2 + 2 + 2 + 2, MP_BLUETOOTH_IRQ_CONNECTION_UPDATE)) {
ringbuf_put16(&o->ringbuf, conn_handle);
ringbuf_put16(&o->ringbuf, conn_interval);
ringbuf_put16(&o->ringbuf, conn_latency);
ringbuf_put16(&o->ringbuf, supervision_timeout);
ringbuf_put16(&o->ringbuf, status);
}
schedule_ringbuf(atomic_state);
}
void mp_bluetooth_gatts_on_write(uint16_t conn_handle, uint16_t value_handle) {
MICROPY_PY_BLUETOOTH_ENTER
mp_obj_bluetooth_ble_t *o = MP_OBJ_TO_PTR(MP_STATE_VM(bluetooth));

5
extmod/modbluetooth.h
View File

@ -114,6 +114,7 @@
#define MP_BLUETOOTH_IRQ_L2CAP_DISCONNECT (24)
#define MP_BLUETOOTH_IRQ_L2CAP_RECV (25)
#define MP_BLUETOOTH_IRQ_L2CAP_SEND_READY (26)
#define MP_BLUETOOTH_IRQ_CONNECTION_UPDATE (27)
#define MP_BLUETOOTH_ADDRESS_MODE_PUBLIC (0)
#define MP_BLUETOOTH_ADDRESS_MODE_RANDOM (1)
@ -151,6 +152,7 @@ _IRQ_L2CAP_CONNECT = const(23)
_IRQ_L2CAP_DISCONNECT = const(24)
_IRQ_L2CAP_RECV = const(25)
_IRQ_L2CAP_SEND_READY = const(26)
_IRQ_GATTS_CONN_UPDATE = const(27)
*/
// bluetooth.UUID type.
@ -281,6 +283,9 @@ int mp_bluetooth_l2cap_recvinto(uint16_t conn_handle, uint16_t cid, uint8_t *buf
// Notify modbluetooth that a connection/disconnection event has occurred.
void mp_bluetooth_gap_on_connected_disconnected(uint8_t event, uint16_t conn_handle, uint8_t addr_type, const uint8_t *addr);
// Call this when any connection parameters have been changed.
void mp_bluetooth_gap_on_connection_update(uint16_t conn_handle, uint16_t conn_interval, uint16_t conn_latency, uint16_t supervision_timeout, uint16_t status);
// Call this when a characteristic is written to.
void mp_bluetooth_gatts_on_write(uint16_t conn_handle, uint16_t value_handle);

25
extmod/nimble/modbluetooth_nimble.c
View File

@ -303,6 +303,19 @@ STATIC int gap_event_cb(struct ble_gap_event *event, void *arg) {
}
break;
}
case BLE_GAP_EVENT_PHY_UPDATE_COMPLETE:
DEBUG_printf("gap_event_cb: phy update: %d\n", event->phy_updated.tx_phy);
break;
case BLE_GAP_EVENT_CONN_UPDATE: {
DEBUG_printf("gap_event_cb: connection update: status=%d\n", event->conn_update.status);
struct ble_gap_conn_desc desc;
if (ble_gap_conn_find(event->conn_update.conn_handle, &desc) == 0) {
mp_bluetooth_gap_on_connection_update(event->conn_update.conn_handle, desc.conn_itvl, desc.conn_latency, desc.supervision_timeout, event->conn_update.status == 0 ? 0 : 1);
}
break;
}
}
return 0;
}
@ -938,13 +951,13 @@ STATIC int peripheral_gap_event_cb(struct ble_gap_event *event, void *arg) {
break;
}
case BLE_GAP_EVENT_CONN_UPDATE:
// TODO
break;
case BLE_GAP_EVENT_CONN_UPDATE_REQ:
// TODO
case BLE_GAP_EVENT_CONN_UPDATE: {
DEBUG_printf("peripheral_gap_event_cb: connection update: status=%d\n", event->conn_update.status);
if (ble_gap_conn_find(event->conn_update.conn_handle, &desc) == 0) {
mp_bluetooth_gap_on_connection_update(event->conn_update.conn_handle, desc.conn_itvl, desc.conn_latency, desc.supervision_timeout, event->conn_update.status == 0 ? 0 : 1);
}
break;
}
case BLE_GAP_EVENT_MTU: {
if (event->mtu.channel_id == BLE_L2CAP_CID_ATT) {