nrf/drivers/bluetooth/ble_drv: Increase max transfers in progress.
Increase the maximum number of queued notifications from 1 to 6. This
massively speeds up the NUS console - especially when printing large
amounts of text. The reason is that multiple transfers can be done in a
single connection event, in ideal cases 6 at a time.
#define BLE_MAX_CONN_INTERVAL MSEC_TO_UNITS(12, UNIT_0_625_MS)
#define BLE_SLAVE_LATENCY 0
#define BLE_CONN_SUP_TIMEOUT MSEC_TO_UNITS(4000, UNIT_10_MS)
+#define MAX_TX_IN_PROGRESS (6)
#if !defined(GATT_MTU_SIZE_DEFAULT) && defined(BLE_GATT_ATT_MTU_DEFAULT)
#define GATT_MTU_SIZE_DEFAULT BLE_GATT_ATT_MTU_DEFAULT
@@ -72,7 +73,7 @@ if (ble_drv_stack_enabled() == 0) { \
}
static volatile bool m_adv_in_progress;
-static volatile bool m_tx_in_progress;
+static volatile uint8_t m_tx_in_progress;
static ble_drv_gap_evt_callback_t gap_event_handler;
static ble_drv_gatts_evt_callback_t gatts_event_handler;
@@ -118,7 +119,7 @@ void softdevice_assert_handler(uint32_t id, uint32_t pc, uint32_t info) {
#endif
uint32_t ble_drv_stack_enable(void) {
m_adv_in_progress = false;
- m_tx_in_progress = false;
+ m_tx_in_progress = 0;
#if (BLUETOOTH_SD == 100) || (BLUETOOTH_SD == 110)
#if BLUETOOTH_LFCLK_RC
@@ -668,16 +669,16 @@ void ble_drv_attr_s_notify(uint16_t conn_handle, uint16_t handle, uint16_t len,
hvx_params.p_len = &hvx_len;
hvx_params.p_data = p_data;
- while (m_tx_in_progress) {
+ while (m_tx_in_progress > MAX_TX_IN_PROGRESS) {
;
}
- m_tx_in_progress = true;
uint32_t err_code;
if ((err_code = sd_ble_gatts_hvx(conn_handle, &hvx_params)) != 0) {
nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_OSError,
"Can not notify attribute value. status: 0x" HEX2_FMT, (uint16_t)err_code));
}
+ m_tx_in_progress++;
}
void ble_drv_gap_event_handler_set(mp_obj_t obj, ble_drv_gap_evt_callback_t evt_handler) {
@@ -978,7 +979,7 @@ static void ble_evt_handler(ble_evt_t * p_ble_evt) {
case BLE_EVT_TX_COMPLETE:
#endif
BLE_DRIVER_LOG("BLE EVT TX COMPLETE\n");
- m_tx_in_progress = false;
+ m_tx_in_progress -= p_ble_evt->evt.common_evt.params.tx_complete.count;
break;
case BLE_GAP_EVT_SEC_PARAMS_REQUEST:
