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Commit 648dd98e authored by Łukasz Rymanowski's avatar Łukasz Rymanowski
Browse files

stack/l2c: Add support for credit based connection oriented channels 

This patch adds only support for LE
There is new L2CAP API to create connection and reconfigure connection.
Implementation will always try to create up to 5 channels if possible.

Tag: #feature
Bug: 159786353
Sponsor: jpawlowski@
Test: compile & manual
Change-Id: I8459a7384ca5771b89b6a5c0bdeeacab86dca5da
parent f5429724

system/main/shim/l2c_api.cc

+23 −0
Original line number Diff line number Diff line
@@ -148,6 +148,29 @@ bool bluetooth::shim::L2CA_GetPeerLECocConfig(uint16_t lcid, 
  return false;

}



bool bluetooth::shim::L2CA_ReconfigCreditBasedConnsReq(

    const RawAddress& bd_addr, std::vector<uint16_t>& lcids,

    tL2CAP_LE_CFG_INFO* p_cfg) {

  LOG_INFO("UNIMPLEMENTED %s addr: %s cfg:%p", __func__,

           bd_addr.ToString().c_str(), p_cfg);

  return false;

}



std::vector<uint16_t> bluetooth::shim::L2CA_ConnectCreditBasedReq(

    uint16_t psm, const RawAddress& p_bd_addr, tL2CAP_LE_CFG_INFO* p_cfg) {

  LOG_INFO("UNIMPLEMENTED %s addr:%s", __func__, p_bd_addr.ToString().c_str());

  std::vector<uint16_t> result;

  return result;

}



bool bluetooth::shim::L2CA_ConnectCreditBasedRsp(

    const RawAddress& bd_addr, uint8_t id,

    std::vector<uint16_t>& accepted_lcids, uint16_t result,

    tL2CAP_LE_CFG_INFO* p_cfg) {

  LOG_INFO("UNIMPLEMENTED %s addr:%s", __func__, bd_addr.ToString().c_str());

  return false;

}



uint8_t bluetooth::shim::L2CA_DataWrite(uint16_t cid, BT_HDR* p_data) {

  bool write_success = shim_l2cap.Write(cid, p_data);

  return write_success ? L2CAP_DW_SUCCESS : L2CAP_DW_FAILED;

system/main/shim/l2c_api.h

+48 −0
Original line number Diff line number Diff line
@@ -18,6 +18,7 @@ 


#include <set>

#include <unordered_map>

#include <vector>



#include "stack/include/l2c_api.h"
@@ -174,6 +175,53 @@ bool L2CA_ConnectLECocRsp(const RawAddress& p_bd_addr, uint8_t id, 
 ******************************************************************************/

bool L2CA_GetPeerLECocConfig(uint16_t lcid, tL2CAP_LE_CFG_INFO* peer_cfg);



/*******************************************************************************

 *

 *  Function         L2CA_ReconfigCreditBasedConnsReq

 *

 *  Description      Start reconfigure procedure on Credit Based Connection Oriented

 *                   Channels.

 *

 *  Return value:    true if peer is connected

 *

 ******************************************************************************/



bool L2CA_ReconfigCreditBasedConnsReq(const RawAddress& bd_addr,

                                      std::vector<uint16_t>& lcids,

                                      tL2CAP_LE_CFG_INFO* p_cfg);



/*******************************************************************************

 *

 *  Function         L2CA_ConnectCreditBasedReq

 *

 *  Description      With this function L2CAP will initiate setup of up to 5 credit

 *                   based connections for given psm using provided configuration.

 *                   L2CAP will notify user on the connection result, by calling

 *                   pL2CA_CreditBasedConnectCfm_Cb for each cid with a result.

 *

 *  Return value: vector of allocated local cids for the connection

 *

 ******************************************************************************/



extern std::vector<uint16_t> L2CA_ConnectCreditBasedReq(

    uint16_t psm, const RawAddress& p_bd_addr, tL2CAP_LE_CFG_INFO* p_cfg);



/*******************************************************************************

 *

 *  Function         L2CA_ConnectCreditBasedRsp

 *

 *  Description      Response for the pL2CA_CreditBasedConnectInd_Cb which is the

 *                   indication for peer requesting credit based connection.

 *

 *  Return value:    true if peer is connected

 *

 ******************************************************************************/



extern bool L2CA_ConnectCreditBasedRsp(const RawAddress& p_bd_addr, uint8_t id,

                                       std::vector<uint16_t>& accepted_lcids,

                                       uint16_t result,

                                       tL2CAP_LE_CFG_INFO* p_cfg);



/*******************************************************************************

 *

 * Function         L2CA_DisconnectReq

system/stack/avct/avct_l2c.cc

+2 −1
Original line number Diff line number Diff line
@@ -48,7 +48,8 @@ const tL2CAP_APPL_INFO avct_l2c_appl = { 
    avct_l2c_config_ind_cback,     avct_l2c_config_cfm_cback,

    avct_l2c_disconnect_ind_cback, avct_l2c_data_ind_cback,

    avct_l2c_congestion_ind_cback, NULL,

    avct_on_l2cap_error,

    avct_on_l2cap_error,           NULL,

    NULL,                          NULL,

};



/*******************************************************************************

system/stack/avct/avct_l2c_br.cc

+2 −1
Original line number Diff line number Diff line
@@ -49,7 +49,8 @@ const tL2CAP_APPL_INFO avct_l2c_br_appl = { 
    avct_l2c_br_config_ind_cback,     avct_l2c_br_config_cfm_cback,

    avct_l2c_br_disconnect_ind_cback, avct_l2c_br_data_ind_cback,

    avct_l2c_br_congestion_ind_cback, NULL,

    avct_br_on_l2cap_error,

    avct_br_on_l2cap_error,           NULL,

    NULL,                             NULL

};



/*******************************************************************************

system/stack/avdt/avdt_l2c.cc

+2 −1
Original line number Diff line number Diff line
@@ -51,7 +51,8 @@ const tL2CAP_APPL_INFO avdt_l2c_appl = { 
    avdt_l2c_config_ind_cback,     avdt_l2c_config_cfm_cback,

    avdt_l2c_disconnect_ind_cback, avdt_l2c_data_ind_cback,

    avdt_l2c_congestion_ind_cback, NULL,

    avdt_on_l2cap_error,

    avdt_on_l2cap_error,           NULL,

    NULL,                          NULL

};



/*******************************************************************************