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Commit d11e8173 authored by Grzegorz Kołodziejczyk's avatar Grzegorz Kołodziejczyk
Browse files

le_audio: Initial implementation of TMAP 

Patch implements part of TMAP for discovering and parsing data from
server.

Tag: #feature
Test: atest le_audio_client_test
Sponsor: jpawlowski@
Bug: 150670922
Bug: 208972148
Change-Id: I3655237be2c19ae397fc20e4c0c48c906121deac
Merged-In: I3655237be2c19ae397fc20e4c0c48c906121deac
(cherry picked from commit e94ee290)
parent 94379a03

system/bta/le_audio/client.cc

+27 −0
Original line number Diff line number Diff line
@@ -1278,6 +1278,9 @@ class LeAudioClientImpl : public LeAudioClient { 


      if (ParseAseCtpNotification(*ntf, len, value))

        ControlPointNotificationHandler(*ntf);

    } else if (hdl == leAudioDevice->tmap_role_hdl_) {

      le_audio::client_parser::tmap::ParseTmapRole(leAudioDevice->tmap_role_,

                                                   len, value);

    } else {

      LOG(ERROR) << __func__ << ", Unknown attribute read: " << loghex(hdl);

    }
@@ -1573,6 +1576,7 @@ class LeAudioClientImpl : public LeAudioClient { 


    const gatt::Service* pac_svc = nullptr;

    const gatt::Service* ase_svc = nullptr;

    const gatt::Service* tmas_svc = nullptr;



    std::vector<uint16_t> csis_primary_handles;

    uint16_t cas_csis_included_handle = 0;
@@ -1603,6 +1607,10 @@ class LeAudioClientImpl : public LeAudioClient { 
            break;

          }

        }

      } else if (tmp.uuid == le_audio::uuid::kTelephonyMediaAudioServiceUuid) {

        LOG_INFO(", Found Telephony and Media Audio service, handle: %04x",

                 tmp.handle);

        tmas_svc = &tmp;

      }

    }
@@ -1859,6 +1867,25 @@ class LeAudioClientImpl : public LeAudioClient { 
      }

    }



    if (tmas_svc) {

      for (const gatt::Characteristic& charac : tmas_svc->characteristics) {

        if (charac.uuid ==

            le_audio::uuid::kTelephonyMediaAudioProfileRoleCharacteristicUuid) {

          leAudioDevice->tmap_role_hdl_ = charac.value_handle;



          /* Obtain initial state of TMAP role */

          BtaGattQueue::ReadCharacteristic(conn_id,

                                           leAudioDevice->tmap_role_hdl_,

                                           OnGattReadRspStatic, NULL);



          LOG_INFO(

              ", Found Telephony and Media Profile characteristic, "

              "handle: %04x",

              leAudioDevice->tmap_role_hdl_);

        }

      }

    }



    leAudioDevice->known_service_handles_ = true;

    leAudioDevice->notify_connected_after_read_ = true;

system/bta/le_audio/client_parser.cc

+21 −0
Original line number Diff line number Diff line
@@ -657,5 +657,26 @@ bool ParseAvailableAudioContexts(struct acs_available_audio_contexts& contexts, 
}

}  // namespace pacs



namespace tmap {



bool ParseTmapRole(std::bitset<16>& role, uint16_t len, const uint8_t* value) {

  if (len != kTmapRoleLen) {

    LOG_ERROR(

        ", Wrong len of Telephony Media Audio Profile Role, "

        "characteristic");

    return false;

  }



  STREAM_TO_UINT16(role, value);



  LOG_INFO(

      ", Telephony Media Audio Profile Role:"

      "\n\tRole: %s",

      role.to_string().c_str());



  return true;

}

}  // namespace tmap



}  // namespace client_parser

}  // namespace le_audio

system/bta/le_audio/client_parser.h

+8 −0
Original line number Diff line number Diff line
@@ -240,5 +240,13 @@ bool ParseAvailableAudioContexts(struct acs_available_audio_contexts& rsp, 
bool ParseSupportedAudioContexts(struct acs_supported_audio_contexts& rsp,

                                 uint16_t len, const uint8_t* value);

}  // namespace pacs



namespace tmap {



constexpr uint16_t kTmapRoleLen = 2;



bool ParseTmapRole(std::bitset<16>& role, uint16_t len, const uint8_t* value);



}  // namespace tmap

}  // namespace client_parser

}  // namespace le_audio

system/bta/le_audio/client_parser_test.cc

+20 −0
Original line number Diff line number Diff line
@@ -1645,5 +1645,25 @@ TEST(LeAudioClientParserTest, testPrepareAseCtpReleaseMultiple) { 


}  // namespace ascs



namespace tmap {



TEST(LeAudioClientParserTest, testParseTmapRoleValid) {

  std::bitset<16> role;

  const uint8_t value[] = {0x3F, 0x00};



  ASSERT_TRUE(ParseTmapRole(role, 2, value));



  ASSERT_EQ(role, 0x003F);  // All possible TMAP roles

}



TEST(LeAudioClientParserTest, testParseTmapRoleInvalidLen) {

  std::bitset<16> role;

  const uint8_t value[] = {0x00, 0x3F};



  ASSERT_FALSE(ParseTmapRole(role, 3, value));

}



}  // namespace tmap



}  // namespace client_parser

}  // namespace le_audio

system/bta/le_audio/devices.h

+2 −0
Original line number Diff line number Diff line
@@ -62,6 +62,7 @@ class LeAudioDevice { 
  bool encrypted_;

  int group_id_;

  bool csis_member_;

  std::bitset<16> tmap_role_;



  uint8_t audio_directions_;

  types::AudioLocations snk_audio_locations_;
@@ -76,6 +77,7 @@ class LeAudioDevice { 
  struct types::hdl_pair audio_supp_cont_hdls_;

  std::vector<struct types::ase> ases_;

  struct types::hdl_pair ctp_hdls_;

  uint16_t tmap_role_hdl_;



  alarm_t* link_quality_timer;

  uint16_t link_quality_timer_data;