1 /******************************************************************************
2 *
3 * Copyright (C) 2009-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * Filename: bta_pan_co.c
22 *
23 * Description: PAN stack callout api
24 *
25 *
26 ******************************************************************************/
27 #include "bta_api.h"
28 #include "bta_pan_api.h"
29 #include "bta_pan_ci.h"
30 #include "bta_pan_co.h"
31 #include "pan_api.h"
32 #include "gki.h"
33 #include <hardware/bluetooth.h>
34 #include <hardware/bt_pan.h>
35 #include "btif_pan_internal.h"
36 #include "bd.h"
37 #include <string.h>
38
39
40 /*******************************************************************************
41 **
42 ** Function bta_pan_co_init
43 **
44 ** Description
45 **
46 **
47 ** Returns Data flow mask.
48 **
49 *******************************************************************************/
bta_pan_co_init(UINT8 * q_level)50 UINT8 bta_pan_co_init(UINT8 *q_level)
51 {
52 BTIF_TRACE_API0("bta_pan_co_init");
53
54 /* set the q_level to 30 buffers */
55 *q_level = 30;
56
57 //return (BTA_PAN_RX_PULL | BTA_PAN_TX_PULL);
58 return (BTA_PAN_RX_PUSH_BUF | BTA_PAN_RX_PUSH | BTA_PAN_TX_PULL);
59 }
60
61 /******************************************************************************
62 **
63 ** Function bta_pan_co_open
64 **
65 ** Description
66 **
67 **
68 **
69 **
70 **
71 ** Returns void
72 **
73 *******************************************************************************/
bta_pan_co_open(UINT16 handle,UINT8 app_id,tBTA_PAN_ROLE local_role,tBTA_PAN_ROLE peer_role,BD_ADDR peer_addr)74 void bta_pan_co_open(UINT16 handle, UINT8 app_id, tBTA_PAN_ROLE local_role,
75 tBTA_PAN_ROLE peer_role, BD_ADDR peer_addr)
76 {
77 BTIF_TRACE_API4("bta_pan_co_open:app_id:%d, local_role:%d, peer_role:%d, "
78 "handle:%d", app_id, local_role, peer_role, handle);
79 btpan_conn_t* conn = btpan_find_conn_addr(peer_addr);
80 if(conn == NULL)
81 conn = btpan_new_conn(handle, peer_addr, local_role, peer_role);
82 if(conn)
83 {
84 BTIF_TRACE_DEBUG6("bta_pan_co_open:tap_fd:%d, open_count:%d, "
85 "conn->handle:%d should = handle:%d, local_role:%d, remote_role:%d",
86 btpan_cb.tap_fd, btpan_cb.open_count, conn->handle, handle,
87 conn->local_role, conn->remote_role);
88 //refresh the role & bt address
89
90 btpan_cb.open_count++;
91 conn->handle = handle;
92 //bdcpy(conn->peer, peer_addr);
93 if(btpan_cb.tap_fd < 0)
94 {
95 btpan_cb.tap_fd = btpan_tap_open();
96 if(btpan_cb.tap_fd >= 0)
97 create_tap_read_thread(btpan_cb.tap_fd);
98 }
99 if(btpan_cb.tap_fd >= 0)
100 {
101 conn->state = PAN_STATE_OPEN;
102 bta_pan_ci_rx_ready(handle);
103 }
104 }
105 }
106
107 /*******************************************************************************
108 **
109 ** Function bta_pan_co_close
110 **
111 ** Description This function is called by PAN when a connection to a
112 ** peer is closed.
113 **
114 **
115 ** Returns void
116 **
117 *******************************************************************************/
bta_pan_co_close(UINT16 handle,UINT8 app_id)118 void bta_pan_co_close(UINT16 handle, UINT8 app_id)
119 {
120 BTIF_TRACE_API2("bta_pan_co_close:app_id:%d, handle:%d", app_id, handle);
121 btpan_conn_t* conn = btpan_find_conn_handle(handle);
122 if(conn && conn->state == PAN_STATE_OPEN)
123 {
124 BTIF_TRACE_DEBUG0("bta_pan_co_close");
125
126 // let bta close event reset this handle as it needs
127 // the handle to find the connection upon CLOSE
128 //conn->handle = -1;
129 conn->state = PAN_STATE_CLOSE;
130 btpan_cb.open_count--;
131
132 if(btpan_cb.open_count == 0)
133 {
134 destroy_tap_read_thread();
135 if(btpan_cb.tap_fd != -1)
136 {
137 btpan_tap_close(btpan_cb.tap_fd);
138 btpan_cb.tap_fd = -1;
139 }
140 }
141 }
142 }
143
144 /*******************************************************************************
145 **
146 ** Function bta_pan_co_tx_path
147 **
148 ** Description This function is called by PAN to transfer data on the
149 ** TX path; that is, data being sent from BTA to the phone.
150 ** This function is used when the TX data path is configured
151 ** to use the pull interface. The implementation of this
152 ** function will typically call Bluetooth stack functions
153 ** PORT_Read() or PORT_ReadData() to read data from RFCOMM
154 ** and then a platform-specific function to send data that
155 ** data to the phone.
156 **
157 **
158 ** Returns void
159 **
160 *******************************************************************************/
bta_pan_co_tx_path(UINT16 handle,UINT8 app_id)161 void bta_pan_co_tx_path(UINT16 handle, UINT8 app_id)
162 {
163 BT_HDR *p_buf;
164 UINT8 i;
165 BD_ADDR src;
166 BD_ADDR dst;
167 UINT16 protocol;
168 BOOLEAN ext;
169 BOOLEAN forward;
170
171 BTIF_TRACE_API2("bta_pan_co_tx_path, handle:%d, app_id:%d", handle, app_id);
172
173 btpan_conn_t* conn = btpan_find_conn_handle(handle);
174 if(conn && conn->state != PAN_STATE_OPEN)
175 {
176 BTIF_TRACE_ERROR2("bta_pan_co_tx_path: cannot find pan connction or conn"
177 "is not opened, conn:%p, conn->state:%d", conn, conn->state);
178 return;
179 }
180 do
181 {
182 /* read next data buffer from pan */
183 if ((p_buf = bta_pan_ci_readbuf(handle, src, dst, &protocol,
184 &ext, &forward)))
185 {
186 BTIF_TRACE_DEBUG2("bta_pan_co_tx_path, calling btapp_tap_send, "
187 "p_buf->len:%d, offset:%d", p_buf->len, p_buf->offset);
188 if(is_empty_eth_addr(conn->eth_addr) && is_valid_bt_eth_addr(src))
189 {
190 BTIF_TRACE_DEBUG6("pan bt peer addr: %02x:%02x:%02x:%02x:%02x:%02x",
191 conn->peer[0], conn->peer[1], conn->peer[2],
192 conn->peer[3],conn->peer[4], conn->peer[5]);
193 BTIF_TRACE_DEBUG6(" update its ethernet addr: "
194 "%02x:%02x:%02x:%02x:%02x:%02x", src[0], src[1], src[2],
195 src[3],src[4], src[5]);
196 memcpy(conn->eth_addr, src, sizeof(conn->eth_addr));
197
198 }
199 btpan_tap_send(btpan_cb.tap_fd, src, dst, protocol,
200 (char*)(p_buf + 1) + p_buf->offset, p_buf->len, ext, forward);
201 GKI_freebuf(p_buf);
202 }
203
204 } while (p_buf != NULL);
205 }
206
207 /*******************************************************************************
208 **
209 ** Function bta_pan_co_rx_path
210 **
211 ** Description
212 **
213 **
214 **
215 **
216 ** Returns void
217 **
218 *******************************************************************************/
bta_pan_co_rx_path(UINT16 handle,UINT8 app_id)219 void bta_pan_co_rx_path(UINT16 handle, UINT8 app_id)
220 {
221 BTIF_TRACE_API0("bta_pan_co_rx_path not used");
222 }
223
224 /*******************************************************************************
225 **
226 ** Function bta_pan_co_tx_write
227 **
228 ** Description This function is called by PAN to send data to the phone
229 ** when the TX path is configured to use a push interface.
230 ** The implementation of this function must copy the data to
231 ** the phone's memory.
232 **
233 **
234 ** Returns void
235 **
236 *******************************************************************************/
bta_pan_co_tx_write(UINT16 handle,UINT8 app_id,BD_ADDR src,BD_ADDR dst,UINT16 protocol,UINT8 * p_data,UINT16 len,BOOLEAN ext,BOOLEAN forward)237 void bta_pan_co_tx_write(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst,
238 UINT16 protocol, UINT8 *p_data,
239 UINT16 len, BOOLEAN ext, BOOLEAN forward)
240 {
241 BTIF_TRACE_API0("bta_pan_co_tx_write not used");
242 }
243
244 /*******************************************************************************
245 **
246 ** Function bta_pan_co_tx_writebuf
247 **
248 ** Description This function is called by PAN to send data to the phone
249 ** when the TX path is configured to use a push interface with
250 ** zero copy. The phone must free the buffer using function
251 ** GKI_freebuf() when it is through processing the buffer.
252 **
253 **
254 ** Returns TRUE if flow enabled
255 **
256 *******************************************************************************/
bta_pan_co_tx_writebuf(UINT16 handle,UINT8 app_id,BD_ADDR src,BD_ADDR dst,UINT16 protocol,BT_HDR * p_buf,BOOLEAN ext,BOOLEAN forward)257 void bta_pan_co_tx_writebuf(UINT16 handle, UINT8 app_id, BD_ADDR src,
258 BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf,
259 BOOLEAN ext, BOOLEAN forward)
260 {
261 BTIF_TRACE_API0("bta_pan_co_tx_writebuf not used");
262 }
263
264 /*******************************************************************************
265 **
266 ** Function bta_pan_co_rx_flow
267 **
268 ** Description This function is called by PAN to enable or disable
269 ** data flow on the RX path when it is configured to use
270 ** a push interface. If data flow is disabled the phone must
271 ** not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
272 ** until data flow is enabled again.
273 **
274 **
275 ** Returns void
276 **
277 *******************************************************************************/
bta_pan_co_rx_flow(UINT16 handle,UINT8 app_id,BOOLEAN enable)278 void bta_pan_co_rx_flow(UINT16 handle, UINT8 app_id, BOOLEAN enable)
279 {
280 BTIF_TRACE_API1("bta_pan_co_rx_flow, enabled:%d, not used", enable);
281 }
282
283 /*******************************************************************************
284 **
285 ** Function bta_pan_co_filt_ind
286 **
287 ** Description protocol filter indication from peer device
288 **
289 ** Returns void
290 **
291 *******************************************************************************/
bta_pan_co_pfilt_ind(UINT16 handle,BOOLEAN indication,tBTA_PAN_STATUS result,UINT16 len,UINT8 * p_filters)292 void bta_pan_co_pfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
293 UINT16 len, UINT8 *p_filters)
294 {
295 BTIF_TRACE_API0("bta_pan_co_pfilt_ind");
296 }
297
298 /*******************************************************************************
299 **
300 ** Function bta_pan_co_mfilt_ind
301 **
302 ** Description multicast filter indication from peer device
303 **
304 ** Returns void
305 **
306 *******************************************************************************/
bta_pan_co_mfilt_ind(UINT16 handle,BOOLEAN indication,tBTA_PAN_STATUS result,UINT16 len,UINT8 * p_filters)307 void bta_pan_co_mfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
308 UINT16 len, UINT8 *p_filters)
309 {
310 BTIF_TRACE_API0("bta_pan_co_mfilt_ind");
311 }
312
313