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Commit a08f5f96 authored by Michael Sun's avatar Michael Sun
Browse files

Use Let property determine the minimum LE connection interval 

Use the property to determine the minimum LE connection interval when
establishing the LE connection. This is critical for systems such as
ChromeOS, which emphasize HID usage, to provide a better LE HID
latency.

Bug: 311762777
Test: m com.android.btservices
Test: manual test HP Traveler mouse + Pixel Buds Pro
Change-Id: Id3ffb51e3ac0bf7bd99c28203ef4c6ed0da5d5eb
parent 262cb292

system/stack/l2cap/l2c_ble.cc

+4 −2
Original line number Diff line number Diff line
@@ -535,8 +535,10 @@ void l2cble_process_sig_cmd(tL2C_LCB* p_lcb, uint8_t* p, uint16_t pkt_len) { 
      STREAM_TO_UINT16(timeout, p);      /* 0x000A - 0x0C80 */

      /* If we are a central, the peripheral wants to update the parameters */

      if (p_lcb->IsLinkRoleCentral()) {

        L2CA_AdjustConnectionIntervals(&min_interval, &max_interval,

                                       BTM_BLE_CONN_INT_MIN_LIMIT);

        L2CA_AdjustConnectionIntervals(

            &min_interval, &max_interval,

            osi_property_get_int32("bluetooth.core.le.min_connection_interval",

                                   BTM_BLE_CONN_INT_MIN_LIMIT));



        if (min_interval < BTM_BLE_CONN_INT_MIN ||

            min_interval > BTM_BLE_CONN_INT_MAX ||