Initial Bluedroid stack commit

5 files changed, 1777 insertions, 0 deletions

diff --git a/bta/pan/bta_pan_act.c b/bta/pan/bta_pan_act.c
new file mode 100644
index 0000000..d9424ec
--- /dev/null
+++ b/bta/pan/bta_pan_act.c
@@ -0,0 +1,718 @@
+/*****************************************************************************
+**
+**  Name:           bta_pan_act.c
+**
+**  Description:    This file contains the pan action functions
+**                  for the state machine.
+**
+**  Copyright (c) 2004-2011, Broadcom Corp., All Rights Reserved.
+**  Broadcom Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(PAN_INCLUDED) && (PAN_INCLUDED == TRUE)
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "bd.h"
+#include "gki.h"
+#include "pan_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_int.h"
+#include "bta_pan_co.h"
+#include <string.h>
+
+
+/* RX and TX data flow mask */
+#define BTA_PAN_RX_MASK              0x0F
+#define BTA_PAN_TX_MASK              0xF0
+
+/*******************************************************************************
+**
+** Function         bta_pan_conn_state_cback
+**
+** Description      Connection state callback from Pan profile
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_conn_state_cback(UINT16 handle, BD_ADDR bd_addr, tPAN_RESULT state,
+                                     BOOLEAN is_role_change, UINT8 src_role, UINT8 dst_role)
+{
+
+    tBTA_PAN_CONN * p_buf;
+    tBTA_PAN_SCB     *p_scb;
+
+
+    if ((p_buf = (tBTA_PAN_CONN *) GKI_getbuf(sizeof(tBTA_PAN_CONN))) != NULL)
+    {
+        if((state == PAN_SUCCESS) && !is_role_change)
+        {
+            p_buf->hdr.event = BTA_PAN_CONN_OPEN_EVT;
+            if((p_scb = bta_pan_scb_by_handle(handle)) == 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);
+            GKI_init_q(&p_scb->data_queue);
+
+            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 handle, tPAN_RESULT result)
+{
+    BT_HDR  *p_buf;
+    tBTA_PAN_SCB *p_scb;
+
+    if((p_scb = bta_pan_scb_by_handle(handle)) == NULL)
+        return;
+
+    if(result == PAN_TX_FLOW_ON)
+    {
+        if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+        {
+            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 handle, BD_ADDR src, BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf,
+                                   BOOLEAN ext, BOOLEAN forward)
+{
+    tBTA_PAN_SCB *p_scb;
+    BT_HDR * p_event;
+    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 *)GKI_getpoolbuf( PAN_POOL_ID );
+        if(!p_new_buf)
+        {
+            APPL_TRACE_WARNING0("Cannot get a PAN GKI buffer");
+            GKI_freebuf( p_buf );
+            return;
+        }
+        else
+        {
+            memcpy( (UINT8 *)(p_new_buf+1)+sizeof(tBTA_PAN_DATA_PARAMS), (UINT8 *)(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);
+            GKI_freebuf( 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;
+
+
+    if((p_scb = bta_pan_scb_by_handle(handle)) == NULL)
+    {
+        
+        GKI_freebuf( p_new_buf );
+        return;
+    }
+
+    GKI_enqueue(&p_scb->data_queue, p_new_buf);
+    if ((p_event = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+    {
+        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 handle, BOOLEAN indication,tBNEP_RESULT result,
+                                    UINT16 num_filters, UINT8 *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 handle, BOOLEAN indication,tBNEP_RESULT result,
+                                    UINT16 num_mfilters, UINT8 *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_enable
+**
+** Description      
+**                  
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_enable(tBTA_PAN_DATA *p_data)
+{
+    tPAN_REGISTER reg_data;
+    UINT16  initial_discoverability;
+    UINT16  initial_connectability;
+    UINT16  d_window;
+    UINT16  d_interval;
+    UINT16  c_window;
+    UINT16  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 (&reg_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  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);
+
+    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.role = p_data->api_set_role.role;
+        bta_pan_cb.p_cback(BTA_PAN_SET_ROLE_EVT, (tBTA_PAN *)&set_role);
+    }
+    /* 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.role = 0;
+        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 i;
+
+
+    /* close all connections */
+    PAN_SetRole (0, NULL, NULL, NULL, NULL);
+
+#if ( BTM_EIR_SERVER_INCLUDED == TRUE )&&(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
+    /* 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 *)GKI_dequeue(&p_scb->data_queue)) != NULL)
+                GKI_freebuf(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);
+
+
+    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;
+        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, tBTA_PAN_DATA *p_data)
+{
+    tBTA_PAN_CONN * p_buf;
+
+    PAN_Disconnect (p_scb->handle);
+
+
+    /* send an event to BTA so that application will get the connection
+       close event */
+    if ((p_buf = (tBTA_PAN_CONN *) GKI_getbuf(sizeof(tBTA_PAN_CONN))) != NULL)
+    {
+        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;
+
+    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;
+        bta_pan_co_open(p_scb->handle, p_scb->app_id, p_scb->local_role, p_scb->peer_role, 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;
+
+    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 *)GKI_dequeue(&p_scb->data_queue)) != NULL)
+        GKI_freebuf(p_buf);
+
+    GKI_init_q(&p_scb->data_queue);
+
+    bta_pan_co_close(p_scb->handle, p_scb->app_id);
+
+    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, 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, tBTA_PAN_DATA *p_data)
+{
+    
+    BT_HDR * p_buf;
+    /* if data path configured for tx pull */
+    if ((bta_pan_cb.flow_mask & BTA_PAN_TX_MASK) == BTA_PAN_TX_PULL)
+    {
+        /* 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(p_scb->data_queue.count > bta_pan_cb.q_level)
+            GKI_freebuf(GKI_dequeue(&p_scb->data_queue));
+    }
+    /* 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)
+        {
+            /* read data from the queue */
+            if ((p_buf = (BT_HDR *)GKI_dequeue(&p_scb->data_queue)) != 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(p_scb->data_queue.count > bta_pan_cb.q_level)
+                GKI_freebuf(GKI_dequeue(&p_scb->data_queue));
+
+            /* if there is more data to be passed to
+            upper layer */
+            if(p_scb->data_queue.count)
+            {
+                if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+                {
+                    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)
+    {
+
+        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);
+
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_free_buf
+**
+** Description      Frees the data buffer during closing state
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_free_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data)
+{
+
+    GKI_freebuf(p_data);
+
+}
+
+#endif /* PAN_INCLUDED */
diff --git a/bta/pan/bta_pan_api.c b/bta/pan/bta_pan_api.c
new file mode 100644
index 0000000..5a84668
--- /dev/null
+++ b/bta/pan/bta_pan_api.c
@@ -0,0 +1,202 @@
+/*****************************************************************************
+**
+**  Name:           bta_pan_api.c
+**
+**  Description:    This is the implementation of the API for PAN
+**                  subsystem of BTA, Widcomm's Bluetooth application
+**                  layer for mobile phones.
+**
+**  Copyright (c) 2004-2011, Broadcom Corp., All Rights Reserved.
+**  Broadcom Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_PAN_INCLUDED) && (BTA_PAN_INCLUDED == TRUE)
+
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "pan_api.h"
+#include "gki.h"
+#include "bta_pan_api.h"
+#include "bta_pan_int.h"
+#include "bd.h"
+#include <string.h>
+
+static const tBTA_SYS_REG bta_pan_reg =
+{
+    bta_pan_hdl_event,
+    BTA_PanDisable
+};
+
+/*******************************************************************************
+**
+** Function         BTA_PanEnable
+**
+** Description      Enable PAN service.  This function must be
+**                  called before any other functions in the PAN API are called.
+**                  When the enable operation is complete the callback function
+**                  will be called with a BTA_PAN_ENABLE_EVT. 
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanEnable(tBTA_PAN_CBACK p_cback)
+{
+    tBTA_PAN_API_ENABLE  *p_buf;
+
+    /* register with BTA system manager */
+    GKI_sched_lock();
+    bta_sys_register(BTA_ID_PAN, &bta_pan_reg);
+    GKI_sched_unlock();
+
+    if ((p_buf = (tBTA_PAN_API_ENABLE *) GKI_getbuf(sizeof(tBTA_PAN_API_ENABLE))) != NULL)
+    {
+        p_buf->hdr.event = BTA_PAN_API_ENABLE_EVT;
+        p_buf->p_cback = p_cback;
+
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+
+
+/*******************************************************************************
+**
+** Function         BTA_PanDisable
+**
+** Description      Disables PAN service. 
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanDisable(void)
+{
+    BT_HDR  *p_buf;
+
+    bta_sys_deregister(BTA_ID_PAN);
+    if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+    {
+        p_buf->event = BTA_PAN_API_DISABLE_EVT;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         BTA_PanSetRole
+**
+** Description      Sets PAN roles. When the enable operation is complete
+**                  the callback function will be called with a BTA_PAN_SET_ROLE_EVT. 
+**                  
+** Returns          void
+**
+*******************************************************************************/
+void BTA_PanSetRole(tBTA_PAN_ROLE role, tBTA_PAN_ROLE_INFO *p_user_info, tBTA_PAN_ROLE_INFO *p_gn_info,
+                                        tBTA_PAN_ROLE_INFO *p_nap_info)
+{
+
+    tBTA_PAN_API_SET_ROLE  *p_buf;
+
+    if ((p_buf = (tBTA_PAN_API_SET_ROLE *) GKI_getbuf(sizeof(tBTA_PAN_API_SET_ROLE))) != NULL)
+    {
+        p_buf->hdr.event = BTA_PAN_API_SET_ROLE_EVT;
+        p_buf->role = role;
+
+        if(p_user_info && (role & BTA_PAN_ROLE_PANU))
+        {
+            if(p_user_info->p_srv_name)
+                BCM_STRNCPY_S(p_buf->user_name, sizeof(p_buf->user_name), p_user_info->p_srv_name, BTA_SERVICE_NAME_LEN);
+            else
+                p_buf->user_name[0] = 0;
+
+            p_buf->user_name[BTA_SERVICE_NAME_LEN] = 0;
+            p_buf->user_app_id = p_user_info->app_id;
+            p_buf->user_sec_mask = p_user_info->sec_mask;
+        }
+
+        if(p_gn_info && (role & BTA_PAN_ROLE_GN))
+        {
+            if(p_gn_info->p_srv_name)
+                BCM_STRNCPY_S(p_buf->gn_name, sizeof(p_buf->gn_name), p_gn_info->p_srv_name, BTA_SERVICE_NAME_LEN);
+            else
+                p_buf->gn_name[0] = 0;
+
+            p_buf->gn_name[BTA_SERVICE_NAME_LEN] = 0;
+            p_buf->gn_app_id = p_gn_info->app_id;
+            p_buf->gn_sec_mask = p_gn_info->sec_mask;
+
+        }
+
+        if(p_nap_info && (role & BTA_PAN_ROLE_NAP))
+        {
+            if(p_nap_info->p_srv_name)
+                BCM_STRNCPY_S(p_buf->nap_name, sizeof(p_buf->nap_name), p_nap_info->p_srv_name, BTA_SERVICE_NAME_LEN);
+            else
+                p_buf->nap_name[0] = 0;
+
+            p_buf->nap_name[BTA_SERVICE_NAME_LEN] = 0;
+            p_buf->nap_app_id = p_nap_info->app_id;
+            p_buf->nap_sec_mask = p_nap_info->sec_mask;
+
+        }
+
+        bta_sys_sendmsg(p_buf);
+    }
+
+
+
+}
+
+/*******************************************************************************
+**
+** Function         BTA_PanOpen
+**
+** Description      Opens a connection to a peer device.
+**                  When connection is open callback function is called
+**                  with a BTA_PAN_OPEN_EVT. 
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+BTA_API void BTA_PanOpen(BD_ADDR bd_addr, tBTA_PAN_ROLE    local_role, tBTA_PAN_ROLE    peer_role)
+{
+
+    tBTA_PAN_API_OPEN  *p_buf;
+
+    if ((p_buf = (tBTA_PAN_API_OPEN *) GKI_getbuf(sizeof(tBTA_PAN_API_OPEN))) != NULL)
+    {
+        p_buf->hdr.event = BTA_PAN_API_OPEN_EVT;
+        p_buf->local_role = local_role;
+        p_buf->peer_role = peer_role;
+        bdcpy(p_buf->bd_addr, bd_addr);
+        bta_sys_sendmsg(p_buf);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         BTA_PanClose
+**
+** Description      Close a PAN  connection to a peer device. 
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+BTA_API void BTA_PanClose(UINT16 handle)
+{
+    BT_HDR  *p_buf;
+
+    if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+    {
+        p_buf->event = BTA_PAN_API_CLOSE_EVT;
+        p_buf->layer_specific = handle;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+#endif /* BTA_PAN_INCLUDED */
diff --git a/bta/pan/bta_pan_ci.c b/bta/pan/bta_pan_ci.c
new file mode 100644
index 0000000..843d2b9
--- /dev/null
+++ b/bta/pan/bta_pan_ci.c
@@ -0,0 +1,248 @@
+/*****************************************************************************
+**
+**  Name:           bta_pan_ci.c
+**
+**  Description:    This is the implementation file for data gateway call-in
+**                  functions.
+**
+**  Copyright (c) 2004, Widcomm Inc., All Rights Reserved.
+**  Widcomm Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_PAN_INCLUDED) && (BTA_PAN_INCLUDED == TRUE)
+
+#include <string.h>
+
+#include "gki.h"
+#include "pan_api.h"
+#include "bd.h"
+#include "bta_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_ci.h"
+#include "bta_pan_int.h"
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_tx_ready
+**
+** Description      This function sends an event to PAN indicating the phone is
+**                  ready for more data and PAN should call bta_pan_co_tx_path().
+**                  This function is used when the TX data path is configured
+**                  to use a pull interface.
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_tx_ready(UINT16 handle)
+{
+    BT_HDR  *p_buf;
+
+    if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+    {
+        p_buf->layer_specific = handle;
+        p_buf->event = BTA_PAN_CI_TX_READY_EVT;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_ready
+**
+** Description      This function sends an event to PAN indicating the phone
+**                  has data available to send to PAN and PAN should call
+**                  bta_pan_co_rx_path().  This function is used when the RX
+**                  data path is configured to use a pull interface.
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_rx_ready(UINT16 handle)
+{
+    BT_HDR  *p_buf;
+
+    if ((p_buf = (BT_HDR *) GKI_getbuf(sizeof(BT_HDR))) != NULL)
+    {
+        p_buf->layer_specific = handle;
+        p_buf->event = BTA_PAN_CI_RX_READY_EVT;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_tx_flow
+**
+** Description      This function is called to enable or disable data flow on
+**                  the TX path.  The phone should call this function to
+**                  disable data flow when it is congested and cannot handle
+**                  any more data sent by bta_pan_co_tx_write() or
+**                  bta_pan_co_tx_writebuf().  This function is used when the
+**                  TX data path is configured to use a push interface.
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_tx_flow(UINT16 handle, BOOLEAN enable)
+{
+    tBTA_PAN_CI_TX_FLOW  *p_buf;
+
+    if ((p_buf = (tBTA_PAN_CI_TX_FLOW *) GKI_getbuf(sizeof(tBTA_PAN_CI_TX_FLOW))) != NULL)
+    {
+        p_buf->hdr.layer_specific = handle;
+        p_buf->hdr.event = BTA_PAN_CI_TX_FLOW_EVT;
+        p_buf->enable = enable;
+        bta_sys_sendmsg(p_buf);
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_write
+**
+** Description      This function is called to send data to PAN when the RX path
+**                  is configured to use a push interface.  The function copies
+**                  data to an event buffer and sends it to PAN.
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_rx_write(UINT16 handle, BD_ADDR dst, BD_ADDR src, UINT16 protocol,
+                            UINT8 *p_data, UINT16 len, BOOLEAN ext)
+{
+    BT_HDR * p_buf;
+ 
+    if((p_buf = (BT_HDR *) GKI_getpoolbuf(PAN_POOL_ID)) != NULL)
+    {
+
+
+        p_buf->offset = PAN_MINIMUM_OFFSET;
+	
+        /* copy all other params before the data */
+        bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->src, src);
+        bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->dst, dst);
+        ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol = protocol;
+        ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext = ext;
+        p_buf->len=len;
+        
+        /* copy data */
+        memcpy((UINT8 *)(p_buf + 1) + p_buf->offset, p_data, len);
+
+        p_buf->layer_specific = handle;
+        p_buf->event = BTA_PAN_CI_RX_WRITEBUF_EVT;
+        bta_sys_sendmsg(p_buf);
+    }
+
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_rx_writebuf
+**
+** Description      This function is called to send data to the phone when
+**                  the RX path is configured to use a push interface with
+**                  zero copy.  The function sends an event to PAN containing
+**                  the data buffer.  The buffer must be allocated using
+**                  functions GKI_getbuf() or GKI_getpoolbuf().  The buffer
+**                  will be freed by BTA; the phone must not free the buffer.
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_rx_writebuf(UINT16 handle, BD_ADDR dst, BD_ADDR src, UINT16 protocol,
+                            BT_HDR *p_buf, BOOLEAN ext)
+{
+
+    /* copy all other params before the data */
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->src, src);
+    bdcpy(((tBTA_PAN_DATA_PARAMS *)p_buf)->dst, dst);
+    ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol = protocol;
+    ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext = ext;
+
+    p_buf->layer_specific = handle;
+    p_buf->event = BTA_PAN_CI_RX_WRITEBUF_EVT;
+    bta_sys_sendmsg(p_buf);
+}
+
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_readbuf
+**
+** Description      
+**                        
+**
+** Returns          void 
+**
+*******************************************************************************/
+BT_HDR * bta_pan_ci_readbuf(UINT16 handle, BD_ADDR src, BD_ADDR dst, UINT16* p_protocol, 
+                                 BOOLEAN* p_ext, BOOLEAN* p_forward)
+{
+    tBTA_PAN_SCB * p_scb;
+    BT_HDR * p_buf;
+
+    p_scb = bta_pan_scb_by_handle(handle);
+
+    p_buf =  (BT_HDR *)GKI_dequeue(&p_scb->data_queue);
+
+    if(p_buf)
+    {
+        bdcpy(src,((tBTA_PAN_DATA_PARAMS *)p_buf)->src);
+        bdcpy(dst,((tBTA_PAN_DATA_PARAMS *)p_buf)->dst);
+        *p_protocol = ((tBTA_PAN_DATA_PARAMS *)p_buf)->protocol;
+        *p_ext = ((tBTA_PAN_DATA_PARAMS *)p_buf)->ext;
+        *p_forward = ((tBTA_PAN_DATA_PARAMS *)p_buf)->forward;
+    }
+
+    return p_buf;
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_set_mfilters
+**
+** Description      This function is called to set multicast filters 
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_set_mfilters(UINT16 handle, UINT16 num_mcast_filters, UINT8 *p_start_array,
+                                                    UINT8 *p_end_array)
+{
+
+    PAN_SetMulticastFilters(handle, num_mcast_filters, p_start_array, p_end_array);
+
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_ci_set_mfilters
+**
+** Description      This function is called to set protocol filters 
+**                  
+**
+** Returns          void 
+**
+*******************************************************************************/
+void bta_pan_ci_set_pfilters(UINT16 handle, UINT16 num_filters, UINT16 *p_start_array, UINT16 *p_end_array)
+{
+
+    PAN_SetProtocolFilters(handle, num_filters, p_start_array, p_end_array );
+
+}
+
+#endif /* BTA_PAN_API */
diff --git a/bta/pan/bta_pan_int.h b/bta/pan/bta_pan_int.h
new file mode 100644
index 0000000..5715c31
--- /dev/null
+++ b/bta/pan/bta_pan_int.h
@@ -0,0 +1,200 @@
+/*****************************************************************************
+**
+**  Name:           bta_pan_int.h
+**
+**  Description:    This is the private interface file for the BTA data
+**                  gateway.
+**
+**  Copyright (c) 2004, Widcomm Inc., All Rights Reserved.
+**  Widcomm Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+#ifndef BTA_PAN_INT_H
+#define BTA_PAN_INT_H
+ 
+#include "bta_sys.h"
+#include "bta_pan_api.h"
+
+/*****************************************************************************
+**  Constants
+*****************************************************************************/
+
+
+
+
+/* PAN events */
+enum
+{
+    /* these events are handled by the state machine */
+    BTA_PAN_API_CLOSE_EVT = BTA_SYS_EVT_START(BTA_ID_PAN),
+    BTA_PAN_CI_TX_READY_EVT,
+    BTA_PAN_CI_RX_READY_EVT,
+    BTA_PAN_CI_TX_FLOW_EVT,
+    BTA_PAN_CI_RX_WRITE_EVT,
+    BTA_PAN_CI_RX_WRITEBUF_EVT,
+    BTA_PAN_CONN_OPEN_EVT,
+    BTA_PAN_CONN_CLOSE_EVT,
+    BTA_PAN_BNEP_FLOW_ENABLE_EVT,
+    BTA_PAN_RX_FROM_BNEP_READY_EVT,
+
+    /* these events are handled outside of the state machine */
+    BTA_PAN_API_ENABLE_EVT,
+    BTA_PAN_API_DISABLE_EVT,
+    BTA_PAN_API_SET_ROLE_EVT,
+    BTA_PAN_API_OPEN_EVT
+};
+
+
+
+
+/*****************************************************************************
+**  Data types
+*****************************************************************************/
+
+/* data type for BTA_PAN_API_ENABLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;                        /* Event header */
+    tBTA_PAN_CBACK     *p_cback;                    /* PAN callback function */
+} tBTA_PAN_API_ENABLE;
+
+/* data type for BTA_PAN_API_REG_ROLE_EVT */
+typedef struct
+{
+    BT_HDR              hdr;                             /* Event header */
+    char                user_name[BTA_SERVICE_NAME_LEN+1];   /* Service name */
+    char                gn_name[BTA_SERVICE_NAME_LEN+1];     /* Service name */
+    char                nap_name[BTA_SERVICE_NAME_LEN+1];    /* Service name */
+    tBTA_PAN_ROLE       role;   
+    UINT8               user_app_id;
+    UINT8               gn_app_id;
+    UINT8               nap_app_id;
+    tBTA_SEC            user_sec_mask;                   /* Security mask */
+    tBTA_SEC            gn_sec_mask;                     /* Security mask */
+    tBTA_SEC            nap_sec_mask;                    /* Security mask */
+
+
+} tBTA_PAN_API_SET_ROLE;
+
+/* data type for BTA_PAN_API_OPEN_EVT */
+typedef struct
+{
+    BT_HDR              hdr;                        /* Event header */
+    tBTA_PAN_ROLE        local_role;                 /* local role */
+    tBTA_PAN_ROLE        peer_role;                  /* peer role */
+    BD_ADDR             bd_addr;                    /* peer bdaddr */
+} tBTA_PAN_API_OPEN;
+
+/* data type for BTA_PAN_CI_TX_FLOW_EVT */
+typedef struct
+{
+    BT_HDR          hdr;                    /* Event header */
+    BOOLEAN         enable;                 /* Flow control setting */
+} tBTA_PAN_CI_TX_FLOW;
+
+/* data type for BTA_PAN_CONN_OPEN_EVT */
+typedef struct
+{
+    BT_HDR          hdr;        /* Event header */
+    tPAN_RESULT     result;
+
+} tBTA_PAN_CONN;
+
+
+
+
+/* union of all data types */
+typedef union
+{
+    BT_HDR                   hdr;
+    tBTA_PAN_API_ENABLE      api_enable;
+    tBTA_PAN_API_SET_ROLE    api_set_role;
+    tBTA_PAN_API_OPEN        api_open;
+    tBTA_PAN_CI_TX_FLOW      ci_tx_flow;
+    tBTA_PAN_CONN            conn;
+} tBTA_PAN_DATA;
+
+/* state machine control block */
+typedef struct
+{
+    BD_ADDR                 bd_addr;        /* peer bdaddr */
+    BUFFER_Q                data_queue;     /* Queue of buffers waiting to be passed to application */
+    UINT16                  handle;         /* BTA PAN/BNEP handle */
+    BOOLEAN                 in_use;         /* scb in use */
+    tBTA_SEC                sec_mask;       /* Security mask */
+    BOOLEAN                 pan_flow_enable;/* BNEP flow control state */
+    BOOLEAN                 app_flow_enable;/* Application flow control state */
+    UINT8                   state;          /* State machine state */
+    tBTA_PAN_ROLE            local_role;     /* local role */
+    tBTA_PAN_ROLE            peer_role;      /* peer role */
+    UINT8                    app_id;         /* application id for the connection */
+
+} tBTA_PAN_SCB;
+
+
+
+/* main control block */
+typedef struct
+{
+    tBTA_PAN_SCB    scb[BTA_PAN_NUM_CONN];          /* state machine control blocks */
+    tBTA_PAN_CBACK *p_cback;                        /* PAN callback function */
+    UINT8            app_id[3];                      /* application id for PAN roles */
+    UINT8           flow_mask;                      /* Data flow mask */
+    UINT8           q_level;                        /* queue level set by application for TX data */
+
+} tBTA_PAN_CB;
+
+
+/* pan data param */
+typedef struct
+{
+    BT_HDR  hdr;
+    BD_ADDR src;
+    BD_ADDR dst;
+    UINT16  protocol;
+    BOOLEAN ext;
+    BOOLEAN forward;
+
+} tBTA_PAN_DATA_PARAMS;
+
+
+/*****************************************************************************
+**  Global data
+*****************************************************************************/
+
+/* PAN control block */
+
+#if BTA_DYNAMIC_MEMORY == FALSE
+extern tBTA_PAN_CB  bta_pan_cb;
+#else
+extern tBTA_PAN_CB *bta_pan_cb_ptr;
+#define bta_pan_cb (*bta_pan_cb_ptr)
+#endif
+
+/*****************************************************************************
+**  Function prototypes
+*****************************************************************************/
+extern tBTA_PAN_SCB *bta_pan_scb_alloc(void);
+extern void bta_pan_scb_dealloc(tBTA_PAN_SCB *p_scb);
+extern UINT8 bta_pan_scb_to_idx(tBTA_PAN_SCB *p_scb);
+extern tBTA_PAN_SCB *bta_pan_scb_by_handle(UINT16 handle);
+extern BOOLEAN bta_pan_hdl_event(BT_HDR *p_msg);
+
+/* action functions */
+extern void bta_pan_enable(tBTA_PAN_DATA *p_data);
+extern void bta_pan_disable(void);
+extern void bta_pan_set_role(tBTA_PAN_DATA *p_data);
+extern void bta_pan_open(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_api_close(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_set_shutdown(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_rx_path(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_tx_path(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_tx_flow(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_conn_open(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_conn_close(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_writebuf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_write_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+extern void bta_pan_free_buf(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+
+
+#endif /* BTA_PAN_INT_H */
diff --git a/bta/pan/bta_pan_main.c b/bta/pan/bta_pan_main.c
new file mode 100644
index 0000000..34caf61
--- /dev/null
+++ b/bta/pan/bta_pan_main.c
@@ -0,0 +1,409 @@
+/*****************************************************************************
+**
+**  Name:           bta_pan_main.c
+**
+**  Description:    This file contains the PAN main functions and
+**                  state machine.
+**
+**  Copyright (c) 2004, Widcomm Inc., All Rights Reserved.
+**  Widcomm Bluetooth Core. Proprietary and confidential.
+**
+*****************************************************************************/
+
+#include "bt_target.h"
+
+#if defined(BTA_PAN_INCLUDED) && (BTA_PAN_INCLUDED == TRUE)
+
+#include <string.h>
+#include "bta_api.h"
+#include "bta_sys.h"
+#include "gki.h"
+#include "pan_api.h"
+#include "bta_pan_api.h"
+#include "bta_pan_int.h"
+#include "bd.h"
+
+/*****************************************************************************
+** Constants and types
+*****************************************************************************/
+
+
+
+/* state machine action enumeration list */
+enum
+{
+    BTA_PAN_API_CLOSE,
+    BTA_PAN_TX_PATH,
+    BTA_PAN_RX_PATH,
+    BTA_PAN_TX_FLOW,
+    BTA_PAN_WRITE_BUF,
+    BTA_PAN_CONN_OPEN,
+    BTA_PAN_CONN_CLOSE,
+    BTA_PAN_FREE_BUF,
+    BTA_PAN_IGNORE
+};
+
+
+
+/* type for action functions */
+typedef void (*tBTA_PAN_ACTION)(tBTA_PAN_SCB *p_scb, tBTA_PAN_DATA *p_data);
+
+
+
+
+/* action function list */
+const tBTA_PAN_ACTION bta_pan_action[] =
+{
+    bta_pan_api_close,
+    bta_pan_tx_path,
+    bta_pan_rx_path,
+    bta_pan_tx_flow,
+    bta_pan_write_buf,
+    bta_pan_conn_open,
+    bta_pan_conn_close,
+    bta_pan_free_buf,
+
+};
+
+/* state table information */
+#define BTA_PAN_ACTIONS              1       /* number of actions */
+#define BTA_PAN_NEXT_STATE           1       /* position of next state */
+#define BTA_PAN_NUM_COLS             2       /* number of columns in state tables */
+
+
+/* state machine states */
+enum
+{
+    BTA_PAN_IDLE_ST,
+    BTA_PAN_OPEN_ST,
+    BTA_PAN_CLOSING_ST
+};
+
+
+/* state table for listen state */
+const UINT8 bta_pan_st_idle[][BTA_PAN_NUM_COLS] =
+{
+   /* API_CLOSE */          {BTA_PAN_API_CLOSE,              BTA_PAN_IDLE_ST},
+   /* CI_TX_READY */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_RX_READY */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_TX_FLOW */         {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_RX_WRITE */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* CI_RX_WRITEBUF */     {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* PAN_CONN_OPEN */      {BTA_PAN_CONN_OPEN,              BTA_PAN_OPEN_ST},
+   /* PAN_CONN_CLOSE */     {BTA_PAN_CONN_OPEN,              BTA_PAN_IDLE_ST},
+   /* FLOW_ENABLE */        {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST},
+   /* BNEP_DATA */          {BTA_PAN_IGNORE,                 BTA_PAN_IDLE_ST}
+
+};
+
+
+
+/* state table for open state */
+const UINT8 bta_pan_st_open[][BTA_PAN_NUM_COLS] =
+{
+   /* API_CLOSE */          {BTA_PAN_API_CLOSE,               BTA_PAN_OPEN_ST},
+   /* CI_TX_READY */        {BTA_PAN_TX_PATH,                 BTA_PAN_OPEN_ST},
+   /* CI_RX_READY */        {BTA_PAN_RX_PATH,                 BTA_PAN_OPEN_ST},
+   /* CI_TX_FLOW */         {BTA_PAN_TX_FLOW,                 BTA_PAN_OPEN_ST},
+   /* CI_RX_WRITE */        {BTA_PAN_IGNORE,                  BTA_PAN_OPEN_ST},
+   /* CI_RX_WRITEBUF */     {BTA_PAN_WRITE_BUF,               BTA_PAN_OPEN_ST},
+   /* PAN_CONN_OPEN */      {BTA_PAN_IGNORE,                  BTA_PAN_OPEN_ST},
+   /* PAN_CONN_CLOSE */     {BTA_PAN_CONN_CLOSE,              BTA_PAN_IDLE_ST},
+   /* FLOW_ENABLE */        {BTA_PAN_RX_PATH,                 BTA_PAN_OPEN_ST},
+   /* BNEP_DATA */          {BTA_PAN_TX_PATH,                 BTA_PAN_OPEN_ST}
+};
+
+/* state table for closing state */
+const UINT8 bta_pan_st_closing[][BTA_PAN_NUM_COLS] =
+{
+   /* API_CLOSE */          {BTA_PAN_IGNORE,                   BTA_PAN_CLOSING_ST},
+   /* CI_TX_READY */        {BTA_PAN_TX_PATH,                  BTA_PAN_CLOSING_ST},
+   /* CI_RX_READY */        {BTA_PAN_RX_PATH,                  BTA_PAN_CLOSING_ST},
+   /* CI_TX_FLOW */         {BTA_PAN_TX_FLOW,                  BTA_PAN_CLOSING_ST},
+   /* CI_RX_WRITE */        {BTA_PAN_IGNORE,                   BTA_PAN_CLOSING_ST},
+   /* CI_RX_WRITEBUF */     {BTA_PAN_FREE_BUF,                 BTA_PAN_CLOSING_ST},
+   /* PAN_CONN_OPEN */      {BTA_PAN_IGNORE,                   BTA_PAN_CLOSING_ST},
+   /* PAN_CONN_CLOSE */     {BTA_PAN_CONN_CLOSE,               BTA_PAN_IDLE_ST},
+   /* FLOW_ENABLE */        {BTA_PAN_RX_PATH,                  BTA_PAN_CLOSING_ST},
+   /* BNEP_DATA */          {BTA_PAN_TX_PATH,                  BTA_PAN_CLOSING_ST}
+};
+
+/* type for state table */
+typedef const UINT8 (*tBTA_PAN_ST_TBL)[BTA_PAN_NUM_COLS];
+
+/* state table */
+const tBTA_PAN_ST_TBL bta_pan_st_tbl[] = {
+    bta_pan_st_idle,
+    bta_pan_st_open,
+    bta_pan_st_closing
+};
+
+/*****************************************************************************
+** Global data
+*****************************************************************************/
+
+/* PAN control block */
+#if BTA_DYNAMIC_MEMORY == FALSE
+tBTA_PAN_CB  bta_pan_cb;
+#endif
+
+/*******************************************************************************
+**
+** Function         bta_pan_scb_alloc
+**
+** Description      Allocate a PAN server control block.
+**                  
+**
+** Returns          pointer to the scb, or NULL if none could be allocated.
+**
+*******************************************************************************/
+tBTA_PAN_SCB *bta_pan_scb_alloc(void)
+{
+    tBTA_PAN_SCB     *p_scb = &bta_pan_cb.scb[0];
+    int             i;
+
+    for (i = 0; i < BTA_PAN_NUM_CONN; i++, p_scb++)
+    {
+        if (!p_scb->in_use)
+        {
+            p_scb->in_use = TRUE;
+            APPL_TRACE_DEBUG1("bta_pan_scb_alloc %d", i);
+            break;
+        }
+    }
+    
+    if (i == BTA_PAN_NUM_CONN)
+    {
+        /* out of scbs */
+        p_scb = NULL;
+        APPL_TRACE_WARNING0("Out of scbs");
+    }
+    return p_scb;
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_sm_execute
+**
+** Description      State machine event handling function for PAN
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_sm_execute(tBTA_PAN_SCB *p_scb, UINT16 event, tBTA_PAN_DATA *p_data)
+{
+    tBTA_PAN_ST_TBL      state_table;
+    UINT8               action;
+    int                 i;
+
+    APPL_TRACE_EVENT3("PAN scb=%d event=0x%x state=%d", bta_pan_scb_to_idx(p_scb), event, p_scb->state);
+
+    /* look up the state table for the current state */
+    state_table = bta_pan_st_tbl[p_scb->state];
+
+    event &= 0x00FF;
+
+    /* set next state */
+    p_scb->state = state_table[event][BTA_PAN_NEXT_STATE];
+
+    /* execute action functions */
+    for (i = 0; i < BTA_PAN_ACTIONS; i++)
+    {
+        if ((action = state_table[event][i]) != BTA_PAN_IGNORE)
+        {
+            (*bta_pan_action[action])(p_scb, p_data);
+        }
+        else
+        {
+            break;
+        }
+    }
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_api_enable
+**
+** Description      Handle an API enable event.
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_api_enable(tBTA_PAN_DATA *p_data)
+{
+    /* initialize control block */
+    memset(&bta_pan_cb, 0, sizeof(bta_pan_cb));
+
+    /* store callback function */
+    bta_pan_cb.p_cback = p_data->api_enable.p_cback;
+    bta_pan_enable(p_data);
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_api_disable
+**
+** Description      Handle an API disable event.
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_api_disable(tBTA_PAN_DATA *p_data)
+{
+    bta_pan_disable();
+}
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_api_open
+**
+** Description      Handle an API listen event.
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+static void bta_pan_api_open(tBTA_PAN_DATA *p_data)
+{
+    tBTA_PAN_SCB     *p_scb;
+    tBTA_PAN_OPEN data;
+
+    /* allocate an scb */
+    if ((p_scb = bta_pan_scb_alloc()) != NULL)
+    {
+        bta_pan_open(p_scb, p_data);
+    }   
+    else
+    {
+        bdcpy(data.bd_addr, p_data->api_open.bd_addr);
+        data.status = BTA_PAN_FAIL;
+        bta_pan_cb.p_cback(BTA_PAN_OPEN_EVT, (tBTA_PAN *)&data);
+
+    }
+}
+/*******************************************************************************
+**
+** Function         bta_pan_scb_dealloc
+**
+** Description      Deallocate a link control block.
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+void bta_pan_scb_dealloc(tBTA_PAN_SCB *p_scb)
+{
+    APPL_TRACE_DEBUG1("bta_pan_scb_dealloc %d", bta_pan_scb_to_idx(p_scb));
+    memset(p_scb, 0, sizeof(tBTA_PAN_SCB));
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_scb_to_idx
+**
+** Description      Given a pointer to an scb, return its index.
+**                  
+**
+** Returns          Index of scb.
+**
+*******************************************************************************/
+UINT8 bta_pan_scb_to_idx(tBTA_PAN_SCB *p_scb)
+{
+
+    return ((UINT8) (p_scb - bta_pan_cb.scb)) + 1;
+}
+
+
+
+/*******************************************************************************
+**
+** Function         bta_pan_scb_by_handle
+**
+** Description      Find scb associated with handle.
+**                  
+**
+** Returns          Pointer to scb or NULL if not found.
+**
+*******************************************************************************/
+tBTA_PAN_SCB *bta_pan_scb_by_handle(UINT16 handle)
+{
+    tBTA_PAN_SCB     *p_scb = &bta_pan_cb.scb[0];
+    UINT8 i;
+
+    for (i = 0; i < BTA_PAN_NUM_CONN; i++, p_scb++)
+    {
+        if (p_scb->handle == handle)
+        {
+            return p_scb;;
+        }
+    }
+
+
+    APPL_TRACE_WARNING1("No scb for handle %d", handle);      
+    
+    return NULL;
+}
+
+/*******************************************************************************
+**
+** Function         bta_pan_hdl_event
+**
+** Description      Data gateway main event handling function.
+**                  
+**
+** Returns          void
+**
+*******************************************************************************/
+BOOLEAN bta_pan_hdl_event(BT_HDR *p_msg)
+{
+    tBTA_PAN_SCB *p_scb;
+    BOOLEAN     freebuf = TRUE;
+
+    switch (p_msg->event)
+    {
+        /* handle enable event */
+        case BTA_PAN_API_ENABLE_EVT:
+            bta_pan_api_enable((tBTA_PAN_DATA *) p_msg);
+            break;
+
+        /* handle disable event */
+        case BTA_PAN_API_DISABLE_EVT:
+            bta_pan_api_disable((tBTA_PAN_DATA *) p_msg);
+            break;
+
+        /* handle set role event */
+        case BTA_PAN_API_SET_ROLE_EVT:
+            bta_pan_set_role((tBTA_PAN_DATA *) p_msg);
+            break;
+
+        /* handle open event */
+        case BTA_PAN_API_OPEN_EVT:
+            bta_pan_api_open((tBTA_PAN_DATA *) p_msg);
+            break;
+
+                
+        /* events that require buffer not be released */
+        case BTA_PAN_CI_RX_WRITEBUF_EVT:
+            freebuf = FALSE;
+            if ((p_scb = bta_pan_scb_by_handle(p_msg->layer_specific)) != NULL)
+            {
+                bta_pan_sm_execute(p_scb, p_msg->event, (tBTA_PAN_DATA *) p_msg);
+            }
+            break;
+
+        /* all other events */
+        default:
+            if ((p_scb = bta_pan_scb_by_handle(p_msg->layer_specific)) != NULL)
+            {
+                bta_pan_sm_execute(p_scb, p_msg->event, (tBTA_PAN_DATA *) p_msg);
+            }
+            break;
+
+    }
+    return freebuf;   
+}
+#endif /* BTA_PAN_INCLUDED */