| /****************************************************************************** |
| * |
| * Copyright (C) 2009-2012 Broadcom Corporation |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at: |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| ******************************************************************************/ |
| |
| /****************************************************************************** |
| * |
| * This is the API implementation file for the Multi-Channel Adaptation |
| * Protocol (MCAP). |
| * |
| ******************************************************************************/ |
| #include <string.h> |
| |
| #include "bt_target.h" |
| #include "btm_api.h" |
| #include "btm_int.h" |
| #include "mca_api.h" |
| #include "mca_defs.h" |
| #include "mca_int.h" |
| |
| #include "wcassert.h" |
| #include "btu.h" |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function mca_process_timeout |
| ** |
| ** Description This function is called by BTU when an MCA timer |
| ** expires. |
| ** |
| ** This function is for use internal to the stack only. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void mca_process_timeout(TIMER_LIST_ENT *p_tle) |
| { |
| if(p_tle->event == BTU_TTYPE_MCA_CCB_RSP) |
| { |
| p_tle->event = 0; |
| mca_ccb_event ((tMCA_CCB *) p_tle->param, MCA_CCB_RSP_TOUT_EVT, NULL); |
| } |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_Init |
| ** |
| ** Description Initialize MCAP main control block. |
| ** This function is called at stack start up. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void MCA_Init(void) |
| { |
| memset(&mca_cb, 0, sizeof(tMCA_CB)); |
| |
| #if defined(MCA_INITIAL_TRACE_LEVEL) |
| mca_cb.trace_level = MCA_INITIAL_TRACE_LEVEL; |
| #else |
| mca_cb.trace_level = BT_TRACE_LEVEL_NONE; |
| #endif |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_SetTraceLevel |
| ** |
| ** Description This function sets the debug trace level for MCA. |
| ** If 0xff is passed, the current trace level is returned. |
| ** |
| ** Input Parameters: |
| ** level: The level to set the MCA tracing to: |
| ** 0xff-returns the current setting. |
| ** 0-turns off tracing. |
| ** >= 1-Errors. |
| ** >= 2-Warnings. |
| ** >= 3-APIs. |
| ** >= 4-Events. |
| ** >= 5-Debug. |
| ** |
| ** Returns The new trace level or current trace level if |
| ** the input parameter is 0xff. |
| ** |
| *******************************************************************************/ |
| UINT8 MCA_SetTraceLevel (UINT8 level) |
| { |
| if (level != 0xFF) |
| mca_cb.trace_level = level; |
| |
| return (mca_cb.trace_level); |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_Register |
| ** |
| ** Description This function registers an MCAP implementation. |
| ** It is assumed that the control channel PSM and data channel |
| ** PSM are not used by any other instances of the stack. |
| ** If the given p_reg->ctrl_psm is 0, this handle is INT only. |
| ** |
| ** Returns 0, if failed. Otherwise, the MCA handle. |
| ** |
| *******************************************************************************/ |
| tMCA_HANDLE MCA_Register(tMCA_REG *p_reg, tMCA_CTRL_CBACK *p_cback) |
| { |
| tMCA_RCB *p_rcb; |
| tMCA_HANDLE handle = 0; |
| tL2CAP_APPL_INFO l2c_cacp_appl; |
| tL2CAP_APPL_INFO l2c_dacp_appl; |
| |
| WC_ASSERT(p_reg != NULL ); |
| WC_ASSERT(p_cback != NULL ); |
| |
| MCA_TRACE_API2 ("MCA_Register: ctrl_psm:0x%x, data_psm:0x%x", p_reg->ctrl_psm, p_reg->data_psm); |
| |
| if ( (p_rcb = mca_rcb_alloc (p_reg)) != NULL) |
| { |
| if (p_reg->ctrl_psm) |
| { |
| if (L2C_INVALID_PSM(p_reg->ctrl_psm) || L2C_INVALID_PSM(p_reg->data_psm)) |
| { |
| MCA_TRACE_ERROR0 ("INVALID_PSM"); |
| return 0; |
| } |
| |
| l2c_cacp_appl = *(tL2CAP_APPL_INFO *)&mca_l2c_int_appl; |
| l2c_cacp_appl.pL2CA_ConnectCfm_Cb = NULL; |
| l2c_dacp_appl = *(tL2CAP_APPL_INFO *)&l2c_cacp_appl; |
| l2c_cacp_appl.pL2CA_ConnectInd_Cb = mca_l2c_cconn_ind_cback; |
| l2c_dacp_appl.pL2CA_ConnectInd_Cb = mca_l2c_dconn_ind_cback; |
| if (L2CA_Register(p_reg->ctrl_psm, (tL2CAP_APPL_INFO *) &l2c_cacp_appl) && |
| L2CA_Register(p_reg->data_psm, (tL2CAP_APPL_INFO *) &l2c_dacp_appl)) |
| { |
| /* set security level */ |
| BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_MCAP_CTRL, p_reg->sec_mask, |
| p_reg->ctrl_psm, BTM_SEC_PROTO_MCA, MCA_CTRL_TCID); |
| |
| /* in theory, we do not need this one for data_psm |
| * If we don't, L2CAP rejects with security block (3), |
| * which is different reject code from what MCAP spec suggests. |
| * we set this one, so mca_l2c_dconn_ind_cback can reject /w no resources (4) */ |
| BTM_SetSecurityLevel(FALSE, "", BTM_SEC_SERVICE_MCAP_DATA, p_reg->sec_mask, |
| p_reg->data_psm, BTM_SEC_PROTO_MCA, MCA_CTRL_TCID); |
| } |
| else |
| { |
| MCA_TRACE_ERROR0 ("Failed to register to L2CAP"); |
| return 0; |
| } |
| } |
| else |
| p_rcb->reg.data_psm = 0; |
| handle = mca_rcb_to_handle (p_rcb); |
| p_rcb->p_cback = p_cback; |
| p_rcb->reg.rsp_tout = p_reg->rsp_tout; |
| } |
| return handle; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_Deregister |
| ** |
| ** Description This function is called to deregister an MCAP implementation. |
| ** Before this function can be called, all control and data |
| ** channels must be removed with MCA_DisconnectReq and MCA_CloseReq. |
| ** |
| ** Returns void |
| ** |
| *******************************************************************************/ |
| void MCA_Deregister(tMCA_HANDLE handle) |
| { |
| tMCA_RCB *p_rcb = mca_rcb_by_handle(handle); |
| |
| MCA_TRACE_API1 ("MCA_Deregister: %d", handle); |
| if (p_rcb && p_rcb->reg.ctrl_psm) |
| { |
| L2CA_Deregister(p_rcb->reg.ctrl_psm); |
| L2CA_Deregister(p_rcb->reg.data_psm); |
| btm_sec_clr_service_by_psm (p_rcb->reg.ctrl_psm); |
| btm_sec_clr_service_by_psm (p_rcb->reg.data_psm); |
| } |
| mca_rcb_dealloc(handle); |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_CreateDep |
| ** |
| ** Description Create a data endpoint. If the MDEP is created successfully, |
| ** the MDEP ID is returned in *p_dep. After a data endpoint is |
| ** created, an application can initiate a connection between this |
| ** endpoint and an endpoint on a peer device. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_CreateDep(tMCA_HANDLE handle, tMCA_DEP *p_dep, tMCA_CS *p_cs) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| int i; |
| tMCA_RCB *p_rcb = mca_rcb_by_handle(handle); |
| tMCA_CS *p_depcs; |
| |
| WC_ASSERT(p_dep != NULL ); |
| WC_ASSERT(p_cs != NULL ); |
| WC_ASSERT(p_cs->p_data_cback != NULL ); |
| |
| MCA_TRACE_API1 ("MCA_CreateDep: %d", handle); |
| if (p_rcb) |
| { |
| if (p_cs->max_mdl > MCA_NUM_MDLS) |
| { |
| MCA_TRACE_ERROR1 ("max_mdl: %d is too big", p_cs->max_mdl ); |
| result = MCA_BAD_PARAMS; |
| } |
| else |
| { |
| p_depcs = p_rcb->dep; |
| if (p_cs->type == MCA_TDEP_ECHO) |
| { |
| if (p_depcs->p_data_cback) |
| { |
| MCA_TRACE_ERROR0 ("Already has ECHO MDEP"); |
| return MCA_NO_RESOURCES; |
| } |
| memcpy (p_depcs, p_cs, sizeof (tMCA_CS)); |
| *p_dep = 0; |
| result = MCA_SUCCESS; |
| } |
| else |
| { |
| result = MCA_NO_RESOURCES; |
| /* non-echo MDEP starts from 1 */ |
| p_depcs++; |
| for (i=1; i<MCA_NUM_DEPS; i++, p_depcs++) |
| { |
| if (p_depcs->p_data_cback == NULL) |
| { |
| memcpy (p_depcs, p_cs, sizeof (tMCA_CS)); |
| /* internally use type as the mdep id */ |
| p_depcs->type = i; |
| *p_dep = i; |
| result = MCA_SUCCESS; |
| break; |
| } |
| } |
| } |
| } |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_DeleteDep |
| ** |
| ** Description Delete a data endpoint. This function is called when |
| ** the implementation is no longer using a data endpoint. |
| ** If this function is called when the endpoint is connected |
| ** the connection is closed and the data endpoint |
| ** is removed. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_DeleteDep(tMCA_HANDLE handle, tMCA_DEP dep) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_RCB *p_rcb = mca_rcb_by_handle(handle); |
| tMCA_DCB *p_dcb; |
| int i, max; |
| tMCA_CS *p_depcs; |
| |
| MCA_TRACE_API2 ("MCA_DeleteDep: %d dep:%d", handle, dep); |
| if (p_rcb) |
| { |
| if (dep < MCA_NUM_DEPS && p_rcb->dep[dep].p_data_cback) |
| { |
| result = MCA_SUCCESS; |
| p_rcb->dep[dep].p_data_cback = NULL; |
| p_depcs = &(p_rcb->dep[dep]); |
| i = handle - 1; |
| max = MCA_NUM_MDLS*MCA_NUM_LINKS; |
| p_dcb = &mca_cb.dcb[i*max]; |
| /* make sure no MDL exists for this MDEP */ |
| for (i=0; i<max; i++, p_dcb++) |
| { |
| if (p_dcb->state && p_dcb->p_cs == p_depcs) |
| { |
| mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL); |
| } |
| } |
| } |
| } |
| return result; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_ConnectReq |
| ** |
| ** Description This function initiates an MCAP control channel connection |
| ** to the peer device. When the connection is completed, an |
| ** MCA_CONNECT_IND_EVT is reported to the application via its |
| ** control callback function. |
| ** This control channel is identified by the tMCA_CL. |
| ** If the connection attempt fails, an MCA_DISCONNECT_IND_EVT is |
| ** reported. The security mask parameter overrides the outgoing |
| ** security mask set in MCA_Register(). |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_ConnectReq(tMCA_HANDLE handle, BD_ADDR bd_addr, |
| UINT16 ctrl_psm, UINT16 sec_mask) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb; |
| tMCA_TC_TBL *p_tbl; |
| |
| MCA_TRACE_API2 ("MCA_ConnectReq: %d psm:0x%x", handle, ctrl_psm); |
| if ((p_ccb = mca_ccb_by_bd(handle, bd_addr)) == NULL) |
| p_ccb = mca_ccb_alloc(handle, bd_addr); |
| else |
| { |
| MCA_TRACE_ERROR0 ("control channel already exists"); |
| return MCA_BUSY; |
| } |
| |
| if (p_ccb) |
| { |
| p_ccb->ctrl_vpsm = L2CA_Register (ctrl_psm, (tL2CAP_APPL_INFO *)&mca_l2c_int_appl); |
| result = MCA_NO_RESOURCES; |
| if (p_ccb->ctrl_vpsm) |
| { |
| BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_MCAP_CTRL, sec_mask, |
| p_ccb->ctrl_vpsm, BTM_SEC_PROTO_MCA, MCA_CTRL_TCID); |
| p_ccb->lcid = mca_l2c_open_req(bd_addr, p_ccb->ctrl_vpsm, NULL); |
| if (p_ccb->lcid) |
| { |
| p_tbl = mca_tc_tbl_calloc(p_ccb); |
| if (p_tbl) |
| { |
| p_tbl->state = MCA_TC_ST_CONN; |
| p_ccb->sec_mask = sec_mask; |
| result = MCA_SUCCESS; |
| } |
| } |
| } |
| if (result != MCA_SUCCESS) |
| mca_ccb_dealloc (p_ccb, NULL); |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_DisconnectReq |
| ** |
| ** Description This function disconnect an MCAP control channel |
| ** to the peer device. |
| ** If associated data channel exists, they are disconnected. |
| ** When the MCL is disconnected an MCA_DISCONNECT_IND_EVT is |
| ** reported to the application via its control callback function. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_DisconnectReq(tMCA_CL mcl) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| |
| MCA_TRACE_API1 ("MCA_DisconnectReq: %d ", mcl); |
| if (p_ccb) |
| { |
| result = MCA_SUCCESS; |
| mca_ccb_event (p_ccb, MCA_CCB_API_DISCONNECT_EVT, NULL); |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_CreateMdl |
| ** |
| ** Description This function sends a CREATE_MDL request to the peer device. |
| ** When the response is received, a MCA_CREATE_CFM_EVT is reported |
| ** with the given MDL ID. |
| ** If the response is successful, a data channel is open |
| ** with the given p_chnl_cfg |
| ** If p_chnl_cfg is NULL, the data channel is not initiated until |
| ** MCA_DataChnlCfg is called to provide the p_chnl_cfg. |
| ** When the data channel is open successfully, a MCA_OPEN_CFM_EVT |
| ** is reported. This data channel is identified as tMCA_DL. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_CreateMdl(tMCA_CL mcl, tMCA_DEP dep, UINT16 data_psm, |
| UINT16 mdl_id, UINT8 peer_dep_id, |
| UINT8 cfg, const tMCA_CHNL_CFG *p_chnl_cfg) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_CCB_MSG *p_evt_data; |
| tMCA_DCB *p_dcb; |
| |
| MCA_TRACE_API4 ("MCA_CreateMdl: %d dep=%d mdl_id=%d peer_dep_id=%d", mcl, dep, mdl_id, peer_dep_id); |
| if (p_ccb) |
| { |
| if (p_ccb->p_tx_req || p_ccb->p_rx_msg || p_ccb->cong) |
| { |
| MCA_TRACE_ERROR0 ("pending req"); |
| return MCA_BUSY; |
| } |
| |
| if ((peer_dep_id > MCA_MAX_MDEP_ID) || (!MCA_IS_VALID_MDL_ID(mdl_id))) |
| { |
| MCA_TRACE_ERROR2 ("bad peer dep id:%d or bad mdl id: %d ", peer_dep_id, mdl_id); |
| return MCA_BAD_PARAMS; |
| } |
| |
| if (mca_ccb_uses_mdl_id(p_ccb, mdl_id)) |
| { |
| MCA_TRACE_ERROR1 ("mdl id: %d is used in the control link", mdl_id); |
| return MCA_BAD_MDL_ID; |
| } |
| |
| p_dcb = mca_dcb_alloc(p_ccb, dep); |
| result = MCA_NO_RESOURCES; |
| if (p_dcb) |
| { |
| /* save the info required by dcb connection */ |
| p_dcb->p_chnl_cfg = p_chnl_cfg; |
| p_dcb->mdl_id = mdl_id; |
| p_evt_data = (tMCA_CCB_MSG *)GKI_getbuf (sizeof(tMCA_CCB_MSG)); |
| if (p_evt_data) |
| { |
| if (!p_ccb->data_vpsm) |
| p_ccb->data_vpsm = L2CA_Register (data_psm, (tL2CAP_APPL_INFO *)&mca_l2c_int_appl); |
| if (p_ccb->data_vpsm) |
| { |
| p_evt_data->dcb_idx = mca_dcb_to_hdl (p_dcb); |
| p_evt_data->mdep_id = peer_dep_id; |
| p_evt_data->mdl_id = mdl_id; |
| p_evt_data->param = cfg; |
| p_evt_data->op_code = MCA_OP_MDL_CREATE_REQ; |
| p_evt_data->hdr.event = MCA_CCB_API_REQ_EVT; |
| p_evt_data->hdr.layer_specific = FALSE; |
| mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data); |
| return MCA_SUCCESS; |
| } |
| else |
| GKI_freebuf (p_evt_data); |
| } |
| mca_dcb_dealloc(p_dcb, NULL); |
| } |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_CreateMdlRsp |
| ** |
| ** Description This function sends a CREATE_MDL response to the peer device |
| ** in response to a received MCA_CREATE_IND_EVT. |
| ** If the rsp_code is successful, a data channel is open |
| ** with the given p_chnl_cfg |
| ** When the data channel is open successfully, a MCA_OPEN_IND_EVT |
| ** is reported. This data channel is identified as tMCA_DL. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_CreateMdlRsp(tMCA_CL mcl, tMCA_DEP dep, |
| UINT16 mdl_id, UINT8 cfg, UINT8 rsp_code, |
| const tMCA_CHNL_CFG *p_chnl_cfg) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_CCB_MSG evt_data; |
| tMCA_DCB *p_dcb; |
| |
| MCA_TRACE_API5 ("MCA_CreateMdlRsp: %d dep=%d mdl_id=%d cfg=%d rsp_code=%d", mcl, dep, mdl_id, cfg, rsp_code); |
| WC_ASSERT(p_chnl_cfg != NULL ); |
| if (p_ccb) |
| { |
| if (p_ccb->cong) |
| { |
| MCA_TRACE_ERROR0 ("congested"); |
| return MCA_BUSY; |
| } |
| if (p_ccb->p_rx_msg && (p_ccb->p_rx_msg->mdep_id == dep ) |
| && (p_ccb->p_rx_msg->mdl_id == mdl_id) && (p_ccb->p_rx_msg->op_code == MCA_OP_MDL_CREATE_REQ)) |
| { |
| result = MCA_SUCCESS; |
| evt_data.dcb_idx = 0; |
| if (rsp_code == MCA_RSP_SUCCESS) |
| { |
| p_dcb = mca_dcb_alloc(p_ccb, dep); |
| if (p_dcb) |
| { |
| evt_data.dcb_idx = mca_dcb_to_hdl(p_dcb); |
| p_dcb->p_chnl_cfg = p_chnl_cfg; |
| p_dcb->mdl_id = mdl_id; |
| } |
| else |
| { |
| rsp_code = MCA_RSP_MDEP_BUSY; |
| result = MCA_NO_RESOURCES; |
| } |
| } |
| |
| if (result == MCA_SUCCESS) |
| { |
| evt_data.mdl_id = mdl_id; |
| evt_data.param = cfg; |
| evt_data.rsp_code = rsp_code; |
| evt_data.op_code = MCA_OP_MDL_CREATE_RSP; |
| mca_ccb_event(p_ccb, MCA_CCB_API_RSP_EVT, (tMCA_CCB_EVT *)&evt_data); |
| } |
| } |
| else |
| { |
| MCA_TRACE_ERROR0 ("The given MCL is not expecting a MCA_CreateMdlRsp with the given parameters" ); |
| result = MCA_BAD_PARAMS; |
| } |
| } |
| return result; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_CloseReq |
| ** |
| ** Description Close a data channel. When the channel is closed, an |
| ** MCA_CLOSE_CFM_EVT is sent to the application via the |
| ** control callback function for this handle. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_CloseReq(tMCA_DL mdl) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_DCB *p_dcb = mca_dcb_by_hdl(mdl); |
| |
| MCA_TRACE_API1 ("MCA_CloseReq: %d ", mdl); |
| if (p_dcb) |
| { |
| result = MCA_SUCCESS; |
| mca_dcb_event(p_dcb, MCA_DCB_API_CLOSE_EVT, NULL); |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_ReconnectMdl |
| ** |
| ** Description This function sends a RECONNECT_MDL request to the peer device. |
| ** When the response is received, a MCA_RECONNECT_CFM_EVT is reported. |
| ** If p_chnl_cfg is NULL, the data channel is not initiated until |
| ** MCA_DataChnlCfg is called to provide the p_chnl_cfg. |
| ** If the response is successful, a data channel is open. |
| ** When the data channel is open successfully, a MCA_OPEN_CFM_EVT |
| ** is reported. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_ReconnectMdl(tMCA_CL mcl, tMCA_DEP dep, UINT16 data_psm, |
| UINT16 mdl_id, const tMCA_CHNL_CFG *p_chnl_cfg) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_CCB_MSG *p_evt_data; |
| tMCA_DCB *p_dcb; |
| |
| MCA_TRACE_API1 ("MCA_ReconnectMdl: %d ", mcl); |
| WC_ASSERT(p_chnl_cfg != NULL ); |
| if (p_ccb) |
| { |
| if (p_ccb->p_tx_req || p_ccb->p_rx_msg || p_ccb->cong) |
| { |
| MCA_TRACE_ERROR0 ("pending req"); |
| return MCA_BUSY; |
| } |
| |
| if (!MCA_IS_VALID_MDL_ID(mdl_id)) |
| { |
| MCA_TRACE_ERROR1 ("bad mdl id: %d ", mdl_id); |
| return MCA_BAD_PARAMS; |
| } |
| |
| if (mca_ccb_uses_mdl_id(p_ccb, mdl_id)) |
| { |
| MCA_TRACE_ERROR1 ("mdl id: %d is used in the control link", mdl_id); |
| return MCA_BAD_MDL_ID; |
| } |
| |
| p_dcb = mca_dcb_alloc(p_ccb, dep); |
| result = MCA_NO_RESOURCES; |
| if (p_dcb) |
| { |
| p_dcb->p_chnl_cfg = p_chnl_cfg; |
| p_dcb->mdl_id = mdl_id; |
| p_evt_data = (tMCA_CCB_MSG *)GKI_getbuf (sizeof(tMCA_CCB_MSG)); |
| if (p_evt_data) |
| { |
| if (!p_ccb->data_vpsm) |
| p_ccb->data_vpsm = L2CA_Register (data_psm, (tL2CAP_APPL_INFO *)&mca_l2c_int_appl); |
| p_evt_data->dcb_idx = mca_dcb_to_hdl(p_dcb); |
| p_evt_data->mdl_id = mdl_id; |
| p_evt_data->op_code = MCA_OP_MDL_RECONNECT_REQ; |
| p_evt_data->hdr.event = MCA_CCB_API_REQ_EVT; |
| mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data); |
| return MCA_SUCCESS; |
| } |
| mca_dcb_dealloc(p_dcb, NULL); |
| } |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_ReconnectMdlRsp |
| ** |
| ** Description This function sends a RECONNECT_MDL response to the peer device |
| ** in response to a MCA_RECONNECT_IND_EVT event. |
| ** If the response is successful, a data channel is open. |
| ** When the data channel is open successfully, a MCA_OPEN_IND_EVT |
| ** is reported. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_ReconnectMdlRsp(tMCA_CL mcl, tMCA_DEP dep, |
| UINT16 mdl_id, UINT8 rsp_code, |
| const tMCA_CHNL_CFG *p_chnl_cfg) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_CCB_MSG evt_data; |
| tMCA_DCB *p_dcb; |
| |
| MCA_TRACE_API1 ("MCA_ReconnectMdlRsp: %d ", mcl); |
| WC_ASSERT(p_chnl_cfg != NULL ); |
| if (p_ccb) |
| { |
| if (p_ccb->cong) |
| { |
| MCA_TRACE_ERROR0 ("congested"); |
| return MCA_BUSY; |
| } |
| if (p_ccb->p_rx_msg && (p_ccb->p_rx_msg->mdl_id == mdl_id) && |
| (p_ccb->p_rx_msg->op_code == MCA_OP_MDL_RECONNECT_REQ)) |
| { |
| result = MCA_SUCCESS; |
| evt_data.dcb_idx = 0; |
| if (rsp_code == MCA_RSP_SUCCESS) |
| { |
| p_dcb = mca_dcb_alloc(p_ccb, dep); |
| if (p_dcb) |
| { |
| evt_data.dcb_idx = mca_dcb_to_hdl(p_dcb); |
| p_dcb->p_chnl_cfg = p_chnl_cfg; |
| p_dcb->mdl_id = mdl_id; |
| } |
| else |
| { |
| MCA_TRACE_ERROR0 ("Out of MDL for this MDEP"); |
| rsp_code = MCA_RSP_MDEP_BUSY; |
| result = MCA_NO_RESOURCES; |
| } |
| } |
| |
| evt_data.mdl_id = mdl_id; |
| evt_data.rsp_code = rsp_code; |
| evt_data.op_code = MCA_OP_MDL_RECONNECT_RSP; |
| mca_ccb_event(p_ccb, MCA_CCB_API_RSP_EVT, (tMCA_CCB_EVT *)&evt_data); |
| } |
| else |
| { |
| MCA_TRACE_ERROR0 ("The given MCL is not expecting a MCA_ReconnectMdlRsp with the given parameters" ); |
| result = MCA_BAD_PARAMS; |
| } |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_DataChnlCfg |
| ** |
| ** Description This function initiates a data channel connection toward the |
| ** connected peer device. |
| ** When the data channel is open successfully, a MCA_OPEN_CFM_EVT |
| ** is reported. This data channel is identified as tMCA_DL. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_DataChnlCfg(tMCA_CL mcl, const tMCA_CHNL_CFG *p_chnl_cfg) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_DCB *p_dcb; |
| tMCA_TC_TBL *p_tbl; |
| |
| MCA_TRACE_API1 ("MCA_DataChnlCfg: %d ", mcl); |
| WC_ASSERT(p_chnl_cfg != NULL ); |
| if (p_ccb) |
| { |
| result = MCA_NO_RESOURCES; |
| if ((p_ccb->p_tx_req == NULL) || (p_ccb->status != MCA_CCB_STAT_PENDING) || |
| ((p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx)) == NULL)) |
| { |
| MCA_TRACE_ERROR1 ("The given MCL is not expecting this API:%d", p_ccb->status); |
| return result; |
| } |
| |
| p_dcb->p_chnl_cfg = p_chnl_cfg; |
| BTM_SetSecurityLevel(TRUE, "", BTM_SEC_SERVICE_MCAP_DATA, p_ccb->sec_mask, |
| p_ccb->data_vpsm, BTM_SEC_PROTO_MCA, p_ccb->p_tx_req->dcb_idx); |
| p_dcb->lcid = mca_l2c_open_req(p_ccb->peer_addr, p_ccb->data_vpsm, p_dcb->p_chnl_cfg); |
| if (p_dcb->lcid) |
| { |
| p_tbl = mca_tc_tbl_dalloc(p_dcb); |
| if (p_tbl) |
| { |
| p_tbl->state = MCA_TC_ST_CONN; |
| result = MCA_SUCCESS; |
| } |
| } |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_Abort |
| ** |
| ** Description This function sends a ABORT_MDL request to the peer device. |
| ** When the response is received, a MCA_ABORT_CFM_EVT is reported. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_Abort(tMCA_CL mcl) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_CCB_MSG *p_evt_data; |
| tMCA_DCB *p_dcb; |
| |
| MCA_TRACE_API1 ("MCA_Abort: %d", mcl); |
| if (p_ccb) |
| { |
| result = MCA_NO_RESOURCES; |
| /* verify that we are waiting for data channel to come up with the given mdl */ |
| if ((p_ccb->p_tx_req == NULL) || (p_ccb->status != MCA_CCB_STAT_PENDING) || |
| ((p_dcb = mca_dcb_by_hdl(p_ccb->p_tx_req->dcb_idx)) == NULL)) |
| { |
| MCA_TRACE_ERROR1 ("The given MCL is not expecting this API:%d", p_ccb->status); |
| return result; |
| } |
| |
| if (p_ccb->cong) |
| { |
| MCA_TRACE_ERROR0 ("congested"); |
| return MCA_BUSY; |
| } |
| |
| result = MCA_NO_RESOURCES; |
| p_evt_data = (tMCA_CCB_MSG *)GKI_getbuf (sizeof(tMCA_CCB_MSG)); |
| if (p_evt_data) |
| { |
| result = MCA_SUCCESS; |
| p_evt_data->op_code = MCA_OP_MDL_ABORT_REQ; |
| p_evt_data->hdr.event = MCA_CCB_API_REQ_EVT; |
| mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data); |
| } |
| |
| } |
| return result; |
| } |
| |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_Delete |
| ** |
| ** Description This function sends a DELETE_MDL request to the peer device. |
| ** When the response is received, a MCA_DELETE_CFM_EVT is reported. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_Delete(tMCA_CL mcl, UINT16 mdl_id) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_CCB *p_ccb = mca_ccb_by_hdl(mcl); |
| tMCA_CCB_MSG *p_evt_data; |
| |
| MCA_TRACE_API1 ("MCA_Delete: %d ", mcl); |
| if (p_ccb) |
| { |
| if (p_ccb->cong) |
| { |
| MCA_TRACE_ERROR0 ("congested"); |
| return MCA_BUSY; |
| } |
| if (!MCA_IS_VALID_MDL_ID(mdl_id) && (mdl_id != MCA_ALL_MDL_ID)) |
| { |
| MCA_TRACE_ERROR1 ("bad mdl id: %d ", mdl_id); |
| return MCA_BAD_PARAMS; |
| } |
| p_evt_data = (tMCA_CCB_MSG *)GKI_getbuf (sizeof(tMCA_CCB_MSG)); |
| if (p_evt_data) |
| { |
| result = MCA_SUCCESS; |
| p_evt_data->mdl_id = mdl_id; |
| p_evt_data->op_code = MCA_OP_MDL_DELETE_REQ; |
| p_evt_data->hdr.event = MCA_CCB_API_REQ_EVT; |
| mca_ccb_event(p_ccb, MCA_CCB_API_REQ_EVT, (tMCA_CCB_EVT *)p_evt_data); |
| } |
| else |
| result = MCA_NO_RESOURCES; |
| } |
| return result; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_WriteReq |
| ** |
| ** Description Send a data packet to the peer device. |
| ** |
| ** The application passes the packet using the BT_HDR structure. |
| ** The offset field must be equal to or greater than L2CAP_MIN_OFFSET. |
| ** This allows enough space in the buffer for the L2CAP header. |
| ** |
| ** The memory pointed to by p_pkt must be a GKI buffer |
| ** allocated by the application. This buffer will be freed |
| ** by the protocol stack; the application must not free |
| ** this buffer. |
| ** |
| ** Returns MCA_SUCCESS if successful, otherwise error. |
| ** |
| *******************************************************************************/ |
| tMCA_RESULT MCA_WriteReq(tMCA_DL mdl, BT_HDR *p_pkt) |
| { |
| tMCA_RESULT result = MCA_BAD_HANDLE; |
| tMCA_DCB *p_dcb = mca_dcb_by_hdl(mdl); |
| tMCA_DCB_EVT evt_data; |
| |
| MCA_TRACE_API1 ("MCA_WriteReq: %d ", mdl); |
| if (p_dcb) |
| { |
| if (p_dcb->cong) |
| { |
| result = MCA_BUSY; |
| } |
| else |
| { |
| evt_data.p_pkt = p_pkt; |
| result = MCA_SUCCESS; |
| mca_dcb_event(p_dcb, MCA_DCB_API_WRITE_EVT, &evt_data); |
| } |
| } |
| return result; |
| } |
| |
| /******************************************************************************* |
| ** |
| ** Function MCA_GetL2CapChannel |
| ** |
| ** Description Get the L2CAP CID used by the given data channel handle. |
| ** |
| ** Returns L2CAP channel ID if successful, otherwise 0. |
| ** |
| *******************************************************************************/ |
| UINT16 MCA_GetL2CapChannel (tMCA_DL mdl) |
| { |
| UINT16 lcid = 0; |
| tMCA_DCB *p_dcb = mca_dcb_by_hdl(mdl); |
| |
| MCA_TRACE_API1 ("MCA_GetL2CapChannel: %d ", mdl); |
| if (p_dcb) |
| lcid = p_dcb->lcid; |
| return lcid; |
| } |
| |
