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Commit 0cb67c5d authored by Sharvil Nanavati's avatar Sharvil Nanavati
Browse files

resolve merge conflicts of d3e9ab94 to mnc-dr1.5-dev. 

Change-Id: I52d08551a1d62fbd56bc6b14d98ccbc31f294484
parents 2eb722c5 d3e9ab94

system/device/include/interop.h

+10 −1
Original line number Diff line number Diff line
@@ -37,7 +37,16 @@ typedef enum { 
  // Devices requiring this workaround do not handle Bluetooth Absolute Volume

  // control correctly, leading to undesirable (potentially harmful) volume levels

  // or general lack of controlability.

  INTEROP_DISABLE_ABSOLUTE_VOLUME

  INTEROP_DISABLE_ABSOLUTE_VOLUME,



  // Some headsets have audio jitter issues because of increased re-transmissions as the

  // 3 Mbps packets have a lower link margin, and are more prone to interference. We can

  // disable 3DH packets (use only 2DH packets) for the ACL link to improve sensitivity

  // when streaming A2DP audio to the headset. Air sniffer logs show reduced

  // re-transmissions after switching to 2DH packets.

  //

  // Disable 3Mbps packets and use only 2Mbps packets for ACL links when streaming audio.

  INTEROP_2MBPS_LINK_ONLY

} interop_feature_t;



// Check if a given |addr| matches a known interoperability workaround as identified

system/device/include/interop_database.h

+3 −0
Original line number Diff line number Diff line
@@ -60,4 +60,7 @@ static const interop_entry_t interop_database[] = { 


  // VW Car Kit - not enough granularity with volume

  {{0x00, 0x26, 0x7e,       0,0,0}, 3, INTEROP_DISABLE_ABSOLUTE_VOLUME},



  // Jaybird Family

  {{0x00, 0x18, 0x91,       0,0,0}, 3, INTEROP_2MBPS_LINK_ONLY}

};

system/stack/avdt/avdt_l2c.c

+19 −0
Original line number Diff line number Diff line
@@ -33,6 +33,7 @@ 
#include "l2cdefs.h"

#include "btm_api.h"

#include "btm_int.h"

#include "device/include/interop.h"





/* callback function declarations */
@@ -202,6 +203,15 @@ void avdt_l2c_connect_ind_cback(BD_ADDR bd_addr, UINT16 lcid, UINT16 psm, UINT8 
            p_tbl->state = AVDT_AD_ST_SEC_ACP;

            p_tbl->cfg_flags = AVDT_L2C_CFG_CONN_ACP;



            if (interop_match(INTEROP_2MBPS_LINK_ONLY, (const bt_bdaddr_t *)&bd_addr)) {

                // Disable 3DH packets for AVDT ACL to improve sensitivity on HS

                tACL_CONN *p_acl_cb = btm_bda_to_acl(bd_addr, BT_TRANSPORT_BR_EDR);

                btm_set_packet_types(p_acl_cb, (btm_cb.btm_acl_pkt_types_supported |

                                                HCI_PKT_TYPES_MASK_NO_3_DH1 |

                                                HCI_PKT_TYPES_MASK_NO_3_DH3 |

                                                HCI_PKT_TYPES_MASK_NO_3_DH5));

            }



            /* Check the security */

            rc = btm_sec_mx_access_request (bd_addr, AVDT_PSM,

                FALSE, BTM_SEC_PROTO_AVDT,
@@ -321,6 +331,15 @@ void avdt_l2c_connect_cfm_cback(UINT16 lcid, UINT16 result) 
                        p_tbl->lcid = lcid;

                        p_tbl->cfg_flags = AVDT_L2C_CFG_CONN_INT;



                        if (interop_match(INTEROP_2MBPS_LINK_ONLY, (const bt_bdaddr_t *) &p_ccb->peer_addr)) {

                            // Disable 3DH packets for AVDT ACL to improve sensitivity on HS

                            tACL_CONN *p_acl_cb = btm_bda_to_acl(p_ccb->peer_addr, BT_TRANSPORT_BR_EDR);

                            btm_set_packet_types(p_acl_cb, (btm_cb.btm_acl_pkt_types_supported |

                                                            HCI_PKT_TYPES_MASK_NO_3_DH1 |

                                                            HCI_PKT_TYPES_MASK_NO_3_DH3 |

                                                            HCI_PKT_TYPES_MASK_NO_3_DH5));

                        }



                        /* Check the security */

                        btm_sec_mx_access_request (p_ccb->peer_addr, AVDT_PSM,

                            TRUE, BTM_SEC_PROTO_AVDT,