| /****************************************************************************** |
| * |
| * Copyright (C) 2004-2012 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 file contains the pan action functions for the state machine. |
| * |
| ******************************************************************************/ |
| |
| #include "bt_target.h" |
| |
| #if (PAN_INCLUDED == TRUE) |
| |
| #include <string.h> |
| |
| #include "bt_common.h" |
| #include "bta_api.h" |
| #include "bta_pan_api.h" |
| #include "bta_pan_co.h" |
| #include "bta_pan_int.h" |
| #include "bta_sys.h" |
| #include "osi/include/osi.h" |
| #include "pan_api.h" |
| #include "utl.h" |
| |
| /* RX and TX data flow mask */ |
| #define BTA_PAN_RX_MASK 0x0F |
| #define BTA_PAN_TX_MASK 0xF0 |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_pm_conn_busy |
| * |
| * Description set pan pm connection busy state |
| * |
| * Params p_scb: state machine control block of pan connection |
| * |
| * Returns void |
| * |
| *******************************************************************************/ |
| static void bta_pan_pm_conn_busy(tBTA_PAN_SCB* p_scb) { |
| if ((p_scb != NULL) && (p_scb->state != BTA_PAN_IDLE_ST)) |
| bta_sys_busy(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_pm_conn_idle |
| * |
| * Description set pan pm connection idle state |
| * |
| * Params p_scb: state machine control block of pan connection |
| * |
| * Returns void |
| * |
| *******************************************************************************/ |
| static void bta_pan_pm_conn_idle(tBTA_PAN_SCB* p_scb) { |
| if ((p_scb != NULL) && (p_scb->state != BTA_PAN_IDLE_ST)) |
| bta_sys_idle(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_conn_state_cback |
| * |
| * Description Connection state callback from Pan profile |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_pan_conn_state_cback(uint16_t handle, BD_ADDR bd_addr, |
| tPAN_RESULT state, bool is_role_change, |
| uint8_t src_role, uint8_t dst_role) { |
| tBTA_PAN_SCB* p_scb; |
| tBTA_PAN_CONN* p_buf = (tBTA_PAN_CONN*)osi_malloc(sizeof(tBTA_PAN_CONN)); |
| |
| if ((state == PAN_SUCCESS) && !is_role_change) { |
| p_buf->hdr.event = BTA_PAN_CONN_OPEN_EVT; |
| p_scb = bta_pan_scb_by_handle(handle); |
| if (p_scb == NULL) { |
| /* allocate an scb */ |
| p_scb = bta_pan_scb_alloc(); |
| } |
| /* we have exceeded maximum number of connections */ |
| if (!p_scb) { |
| PAN_Disconnect(handle); |
| return; |
| } |
| |
| p_scb->handle = handle; |
| p_scb->local_role = src_role; |
| p_scb->peer_role = dst_role; |
| p_scb->pan_flow_enable = true; |
| bdcpy(p_scb->bd_addr, bd_addr); |
| p_scb->data_queue = fixed_queue_new(SIZE_MAX); |
| |
| if (src_role == PAN_ROLE_CLIENT) |
| p_scb->app_id = bta_pan_cb.app_id[0]; |
| else if (src_role == PAN_ROLE_GN_SERVER) |
| p_scb->app_id = bta_pan_cb.app_id[1]; |
| else if (src_role == PAN_ROLE_NAP_SERVER) |
| p_scb->app_id = bta_pan_cb.app_id[2]; |
| } else if ((state != PAN_SUCCESS) && !is_role_change) { |
| p_buf->hdr.event = BTA_PAN_CONN_CLOSE_EVT; |
| } else { |
| return; |
| } |
| |
| p_buf->result = state; |
| p_buf->hdr.layer_specific = handle; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_data_flow_cb |
| * |
| * Description Data flow status callback from PAN |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_pan_data_flow_cb(uint16_t handle, tPAN_RESULT result) { |
| tBTA_PAN_SCB* p_scb; |
| |
| p_scb = bta_pan_scb_by_handle(handle); |
| if (p_scb == NULL) return; |
| |
| if (result == PAN_TX_FLOW_ON) { |
| BT_HDR* p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| p_buf->layer_specific = handle; |
| p_buf->event = BTA_PAN_BNEP_FLOW_ENABLE_EVT; |
| bta_sys_sendmsg(p_buf); |
| bta_pan_co_rx_flow(handle, p_scb->app_id, true); |
| } else if (result == PAN_TX_FLOW_OFF) { |
| p_scb->pan_flow_enable = false; |
| bta_pan_co_rx_flow(handle, p_scb->app_id, false); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_data_buf_ind_cback |
| * |
| * Description data indication callback from pan profile |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_pan_data_buf_ind_cback(uint16_t handle, BD_ADDR src, |
| BD_ADDR dst, uint16_t protocol, |
| BT_HDR* p_buf, bool ext, bool forward) { |
| tBTA_PAN_SCB* p_scb; |
| BT_HDR* p_new_buf; |
| |
| if (sizeof(tBTA_PAN_DATA_PARAMS) > p_buf->offset) { |
| /* offset smaller than data structure in front of actual data */ |
| p_new_buf = (BT_HDR*)osi_malloc(PAN_BUF_SIZE); |
| memcpy((uint8_t*)(p_new_buf + 1) + sizeof(tBTA_PAN_DATA_PARAMS), |
| (uint8_t*)(p_buf + 1) + p_buf->offset, p_buf->len); |
| p_new_buf->len = p_buf->len; |
| p_new_buf->offset = sizeof(tBTA_PAN_DATA_PARAMS); |
| osi_free(p_buf); |
| } else { |
| p_new_buf = p_buf; |
| } |
| /* copy params into the space before the data */ |
| bdcpy(((tBTA_PAN_DATA_PARAMS*)p_new_buf)->src, src); |
| bdcpy(((tBTA_PAN_DATA_PARAMS*)p_new_buf)->dst, dst); |
| ((tBTA_PAN_DATA_PARAMS*)p_new_buf)->protocol = protocol; |
| ((tBTA_PAN_DATA_PARAMS*)p_new_buf)->ext = ext; |
| ((tBTA_PAN_DATA_PARAMS*)p_new_buf)->forward = forward; |
| |
| p_scb = bta_pan_scb_by_handle(handle); |
| if (p_scb == NULL) { |
| osi_free(p_new_buf); |
| return; |
| } |
| |
| fixed_queue_enqueue(p_scb->data_queue, p_new_buf); |
| BT_HDR* p_event = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| p_event->layer_specific = handle; |
| p_event->event = BTA_PAN_RX_FROM_BNEP_READY_EVT; |
| bta_sys_sendmsg(p_event); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_pfilt_ind_cback |
| * |
| * Description |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_pan_pfilt_ind_cback(uint16_t handle, bool indication, |
| tBNEP_RESULT result, uint16_t num_filters, |
| uint8_t* p_filters) { |
| bta_pan_co_pfilt_ind( |
| handle, indication, |
| (tBTA_PAN_STATUS)((result == BNEP_SUCCESS) ? BTA_PAN_SUCCESS |
| : BTA_PAN_FAIL), |
| num_filters, p_filters); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_mfilt_ind_cback |
| * |
| * Description |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| static void bta_pan_mfilt_ind_cback(uint16_t handle, bool indication, |
| tBNEP_RESULT result, uint16_t num_mfilters, |
| uint8_t* p_mfilters) { |
| bta_pan_co_mfilt_ind( |
| handle, indication, |
| (tBTA_PAN_STATUS)((result == BNEP_SUCCESS) ? BTA_PAN_SUCCESS |
| : BTA_PAN_FAIL), |
| num_mfilters, p_mfilters); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_has_multiple_connections |
| * |
| * Description Check whether there are multiple GN/NAP connections to |
| * different devices |
| * |
| * |
| * Returns bool |
| * |
| ******************************************************************************/ |
| static bool bta_pan_has_multiple_connections(uint8_t app_id) { |
| tBTA_PAN_SCB* p_scb = NULL; |
| bool found = false; |
| BD_ADDR bd_addr; |
| |
| for (uint8_t index = 0; index < BTA_PAN_NUM_CONN; index++) { |
| p_scb = &bta_pan_cb.scb[index]; |
| if (p_scb->in_use == true && app_id == p_scb->app_id) { |
| /* save temp bd_addr */ |
| bdcpy(bd_addr, p_scb->bd_addr); |
| found = true; |
| break; |
| } |
| } |
| |
| /* If cannot find a match then there is no connection at all */ |
| if (found == false) return false; |
| |
| /* Find whether there is another connection with different device other than |
| PANU. |
| Could be same service or different service */ |
| for (uint8_t index = 0; index < BTA_PAN_NUM_CONN; index++) { |
| p_scb = &bta_pan_cb.scb[index]; |
| if (p_scb->in_use == true && p_scb->app_id != bta_pan_cb.app_id[0] && |
| bdcmp(bd_addr, p_scb->bd_addr)) { |
| return true; |
| } |
| } |
| return false; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_enable |
| * |
| * Description |
| * |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_enable(tBTA_PAN_DATA* p_data) { |
| tPAN_REGISTER reg_data; |
| uint16_t initial_discoverability; |
| uint16_t initial_connectability; |
| uint16_t d_window; |
| uint16_t d_interval; |
| uint16_t c_window; |
| uint16_t c_interval; |
| |
| bta_pan_cb.p_cback = p_data->api_enable.p_cback; |
| |
| reg_data.pan_conn_state_cb = bta_pan_conn_state_cback; |
| reg_data.pan_bridge_req_cb = NULL; |
| reg_data.pan_data_buf_ind_cb = bta_pan_data_buf_ind_cback; |
| reg_data.pan_data_ind_cb = NULL; |
| reg_data.pan_pfilt_ind_cb = bta_pan_pfilt_ind_cback; |
| reg_data.pan_mfilt_ind_cb = bta_pan_mfilt_ind_cback; |
| reg_data.pan_tx_data_flow_cb = bta_pan_data_flow_cb; |
| |
| /* read connectability and discoverability settings. |
| Pan profile changes the settings. We have to change it back to |
| be consistent with other bta subsystems */ |
| initial_connectability = BTM_ReadConnectability(&c_window, &c_interval); |
| initial_discoverability = BTM_ReadDiscoverability(&d_window, &d_interval); |
| |
| PAN_Register(®_data); |
| |
| /* set it back to original value */ |
| BTM_SetDiscoverability(initial_discoverability, d_window, d_interval); |
| BTM_SetConnectability(initial_connectability, c_window, c_interval); |
| |
| bta_pan_cb.flow_mask = bta_pan_co_init(&bta_pan_cb.q_level); |
| bta_pan_cb.p_cback(BTA_PAN_ENABLE_EVT, NULL); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_set_role |
| * |
| * Description |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_set_role(tBTA_PAN_DATA* p_data) { |
| tPAN_RESULT status; |
| tBTA_PAN_SET_ROLE set_role; |
| uint8_t sec[3]; |
| |
| bta_pan_cb.app_id[0] = p_data->api_set_role.user_app_id; |
| bta_pan_cb.app_id[1] = p_data->api_set_role.gn_app_id; |
| bta_pan_cb.app_id[2] = p_data->api_set_role.nap_app_id; |
| |
| sec[0] = p_data->api_set_role.user_sec_mask; |
| sec[1] = p_data->api_set_role.gn_sec_mask; |
| sec[2] = p_data->api_set_role.nap_sec_mask; |
| |
| /* set security correctly in api and here */ |
| status = PAN_SetRole( |
| p_data->api_set_role.role, sec, p_data->api_set_role.user_name, |
| p_data->api_set_role.gn_name, p_data->api_set_role.nap_name); |
| |
| set_role.role = p_data->api_set_role.role; |
| if (status == PAN_SUCCESS) { |
| if (p_data->api_set_role.role & PAN_ROLE_NAP_SERVER) |
| bta_sys_add_uuid(UUID_SERVCLASS_NAP); |
| else |
| bta_sys_remove_uuid(UUID_SERVCLASS_NAP); |
| |
| if (p_data->api_set_role.role & PAN_ROLE_GN_SERVER) |
| bta_sys_add_uuid(UUID_SERVCLASS_GN); |
| else |
| bta_sys_remove_uuid(UUID_SERVCLASS_GN); |
| |
| if (p_data->api_set_role.role & PAN_ROLE_CLIENT) |
| bta_sys_add_uuid(UUID_SERVCLASS_PANU); |
| else |
| bta_sys_remove_uuid(UUID_SERVCLASS_PANU); |
| |
| set_role.status = BTA_PAN_SUCCESS; |
| } |
| /* if status is not success clear everything */ |
| else { |
| PAN_SetRole(0, 0, NULL, NULL, NULL); |
| bta_sys_remove_uuid(UUID_SERVCLASS_NAP); |
| bta_sys_remove_uuid(UUID_SERVCLASS_GN); |
| bta_sys_remove_uuid(UUID_SERVCLASS_PANU); |
| set_role.status = BTA_PAN_FAIL; |
| } |
| bta_pan_cb.p_cback(BTA_PAN_SET_ROLE_EVT, (tBTA_PAN*)&set_role); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_disable |
| * |
| * Description |
| * |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_disable(void) { |
| BT_HDR* p_buf; |
| tBTA_PAN_SCB* p_scb = &bta_pan_cb.scb[0]; |
| uint8_t i; |
| |
| /* close all connections */ |
| PAN_SetRole(0, NULL, NULL, NULL, NULL); |
| |
| #if (BTA_EIR_CANNED_UUID_LIST != TRUE) |
| bta_sys_remove_uuid(UUID_SERVCLASS_NAP); |
| bta_sys_remove_uuid(UUID_SERVCLASS_GN); |
| bta_sys_remove_uuid(UUID_SERVCLASS_PANU); |
| #endif // BTA_EIR_CANNED_UUID_LIST |
| /* free all queued up data buffers */ |
| for (i = 0; i < BTA_PAN_NUM_CONN; i++, p_scb++) { |
| if (p_scb->in_use) { |
| while ((p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_scb->data_queue)) != |
| NULL) |
| osi_free(p_buf); |
| |
| bta_pan_co_close(p_scb->handle, p_scb->app_id); |
| } |
| } |
| |
| PAN_Deregister(); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_open |
| * |
| * Description |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_open(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data) { |
| tPAN_RESULT status; |
| tBTA_PAN_OPEN data; |
| tBTA_PAN_OPENING opening; |
| |
| status = PAN_Connect(p_data->api_open.bd_addr, p_data->api_open.local_role, |
| p_data->api_open.peer_role, &p_scb->handle); |
| APPL_TRACE_DEBUG("%s pan connect status: %d", __func__, status); |
| |
| if (status == PAN_SUCCESS) { |
| bdcpy(p_scb->bd_addr, p_data->api_open.bd_addr); |
| p_scb->local_role = p_data->api_open.local_role; |
| p_scb->peer_role = p_data->api_open.peer_role; |
| bdcpy(opening.bd_addr, p_data->api_open.bd_addr); |
| opening.handle = p_scb->handle; |
| bta_pan_cb.p_cback(BTA_PAN_OPENING_EVT, (tBTA_PAN*)&opening); |
| |
| } else { |
| bta_pan_scb_dealloc(p_scb); |
| bdcpy(data.bd_addr, p_data->api_open.bd_addr); |
| data.status = BTA_PAN_FAIL; |
| data.local_role = p_data->api_open.local_role; |
| data.peer_role = p_data->api_open.peer_role; |
| bta_pan_cb.p_cback(BTA_PAN_OPEN_EVT, (tBTA_PAN*)&data); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_close |
| * |
| * Description |
| * |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_api_close(tBTA_PAN_SCB* p_scb, UNUSED_ATTR tBTA_PAN_DATA* p_data) { |
| tBTA_PAN_CONN* p_buf = (tBTA_PAN_CONN*)osi_malloc(sizeof(tBTA_PAN_CONN)); |
| |
| PAN_Disconnect(p_scb->handle); |
| |
| /* |
| * Send an event to BTA so that application will get the connection |
| * close event. |
| */ |
| p_buf->hdr.event = BTA_PAN_CONN_CLOSE_EVT; |
| p_buf->hdr.layer_specific = p_scb->handle; |
| |
| bta_sys_sendmsg(p_buf); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_conn_open |
| * |
| * Description process connection open event |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_conn_open(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data) { |
| tBTA_PAN_OPEN data; |
| |
| APPL_TRACE_DEBUG("%s pan connection result: %d", __func__, |
| p_data->conn.result); |
| |
| bdcpy(data.bd_addr, p_scb->bd_addr); |
| data.handle = p_scb->handle; |
| data.local_role = p_scb->local_role; |
| data.peer_role = p_scb->peer_role; |
| |
| if (p_data->conn.result == PAN_SUCCESS) { |
| data.status = BTA_PAN_SUCCESS; |
| p_scb->pan_flow_enable = true; |
| p_scb->app_flow_enable = true; |
| bta_sys_conn_open(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr); |
| } else { |
| bta_pan_scb_dealloc(p_scb); |
| data.status = BTA_PAN_FAIL; |
| } |
| |
| p_scb->pan_flow_enable = true; |
| p_scb->app_flow_enable = true; |
| |
| /* If app_id is NAP/GN, check whether there are multiple connections. |
| If there are, provide a special app_id to dm to enforce master role only. |
| */ |
| if ((p_scb->app_id == bta_pan_cb.app_id[1] || |
| p_scb->app_id == bta_pan_cb.app_id[2]) && |
| bta_pan_has_multiple_connections(p_scb->app_id)) { |
| p_scb->app_id = BTA_APP_ID_PAN_MULTI; |
| } |
| |
| bta_sys_conn_open(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr); |
| bta_pan_cb.p_cback(BTA_PAN_OPEN_EVT, (tBTA_PAN*)&data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_conn_close |
| * |
| * Description process connection close event |
| * |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_conn_close(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data) { |
| tBTA_PAN_CLOSE data; |
| BT_HDR* p_buf; |
| |
| data.handle = p_data->hdr.layer_specific; |
| |
| bta_sys_conn_close(BTA_ID_PAN, p_scb->app_id, p_scb->bd_addr); |
| |
| /* free all queued up data buffers */ |
| while ((p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_scb->data_queue)) != NULL) |
| osi_free(p_buf); |
| |
| bta_pan_scb_dealloc(p_scb); |
| |
| bta_pan_cb.p_cback(BTA_PAN_CLOSE_EVT, (tBTA_PAN*)&data); |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_rx_path |
| * |
| * Description Handle data on the RX path (data sent from the phone to |
| * BTA). |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_rx_path(tBTA_PAN_SCB* p_scb, UNUSED_ATTR tBTA_PAN_DATA* p_data) { |
| /* if data path configured for rx pull */ |
| if ((bta_pan_cb.flow_mask & BTA_PAN_RX_MASK) == BTA_PAN_RX_PULL) { |
| /* if we can accept data */ |
| if (p_scb->pan_flow_enable == true) { |
| /* call application callout function for rx path */ |
| bta_pan_co_rx_path(p_scb->handle, p_scb->app_id); |
| } |
| } |
| /* else data path configured for rx push */ |
| else { |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_tx_path |
| * |
| * Description Handle the TX data path (data sent from BTA to the phone). |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_tx_path(tBTA_PAN_SCB* p_scb, UNUSED_ATTR tBTA_PAN_DATA* p_data) { |
| /* if data path configured for tx pull */ |
| if ((bta_pan_cb.flow_mask & BTA_PAN_TX_MASK) == BTA_PAN_TX_PULL) { |
| bta_pan_pm_conn_busy(p_scb); |
| /* call application callout function for tx path */ |
| bta_pan_co_tx_path(p_scb->handle, p_scb->app_id); |
| |
| /* free data that exceeds queue level */ |
| while (fixed_queue_length(p_scb->data_queue) > bta_pan_cb.q_level) |
| osi_free(fixed_queue_try_dequeue(p_scb->data_queue)); |
| bta_pan_pm_conn_idle(p_scb); |
| } |
| /* if configured for zero copy push */ |
| else if ((bta_pan_cb.flow_mask & BTA_PAN_TX_MASK) == BTA_PAN_TX_PUSH_BUF) { |
| /* if app can accept data */ |
| if (p_scb->app_flow_enable == true) { |
| BT_HDR* p_buf; |
| |
| /* read data from the queue */ |
| p_buf = (BT_HDR*)fixed_queue_try_dequeue(p_scb->data_queue); |
| if (p_buf != NULL) { |
| /* send data to application */ |
| bta_pan_co_tx_writebuf(p_scb->handle, p_scb->app_id, |
| ((tBTA_PAN_DATA_PARAMS*)p_buf)->src, |
| ((tBTA_PAN_DATA_PARAMS*)p_buf)->dst, |
| ((tBTA_PAN_DATA_PARAMS*)p_buf)->protocol, p_buf, |
| ((tBTA_PAN_DATA_PARAMS*)p_buf)->ext, |
| ((tBTA_PAN_DATA_PARAMS*)p_buf)->forward); |
| } |
| /* free data that exceeds queue level */ |
| while (fixed_queue_length(p_scb->data_queue) > bta_pan_cb.q_level) |
| osi_free(fixed_queue_try_dequeue(p_scb->data_queue)); |
| |
| /* if there is more data to be passed to |
| upper layer */ |
| if (!fixed_queue_is_empty(p_scb->data_queue)) { |
| p_buf = (BT_HDR*)osi_malloc(sizeof(BT_HDR)); |
| p_buf->layer_specific = p_scb->handle; |
| p_buf->event = BTA_PAN_RX_FROM_BNEP_READY_EVT; |
| bta_sys_sendmsg(p_buf); |
| } |
| } |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_tx_flow |
| * |
| * Description Set the application flow control state. |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_tx_flow(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data) { |
| p_scb->app_flow_enable = p_data->ci_tx_flow.enable; |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_write_buf |
| * |
| * Description Handle a bta_pan_ci_rx_writebuf() and send data to PAN. |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_write_buf(tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data) { |
| if ((bta_pan_cb.flow_mask & BTA_PAN_RX_MASK) == BTA_PAN_RX_PUSH_BUF) { |
| bta_pan_pm_conn_busy(p_scb); |
| |
| PAN_WriteBuf(p_scb->handle, ((tBTA_PAN_DATA_PARAMS*)p_data)->dst, |
| ((tBTA_PAN_DATA_PARAMS*)p_data)->src, |
| ((tBTA_PAN_DATA_PARAMS*)p_data)->protocol, (BT_HDR*)p_data, |
| ((tBTA_PAN_DATA_PARAMS*)p_data)->ext); |
| bta_pan_pm_conn_idle(p_scb); |
| } |
| } |
| |
| /******************************************************************************* |
| * |
| * Function bta_pan_free_buf |
| * |
| * Description Frees the data buffer during closing state |
| * |
| * |
| * Returns void |
| * |
| ******************************************************************************/ |
| void bta_pan_free_buf(UNUSED_ATTR tBTA_PAN_SCB* p_scb, tBTA_PAN_DATA* p_data) { |
| osi_free(p_data); |
| } |
| |
| #endif /* PAN_INCLUDED */ |