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 "btui.h"
34 //#include "btui_int.h"
35 #include <hardware/bluetooth.h>
36 #include <hardware/bt_pan.h>
37 #include "btif_pan_internal.h"
38 #include "bd.h"
39
40
41 #include <cutils/log.h>
42 #define info(fmt, ...) ALOGI ("%s: " fmt,__FUNCTION__, ## __VA_ARGS__)
43 #define debug(fmt, ...) ALOGD ("%s: " fmt,__FUNCTION__, ## __VA_ARGS__)
44 #define warn(fmt, ...) ALOGW ("## WARNING : %s: " fmt "##",__FUNCTION__, ## __VA_ARGS__)
45 #define error(fmt, ...) ALOGE ("## ERROR : %s: " fmt "##",__FUNCTION__, ## __VA_ARGS__)
46 #define asrt(s) if(!(s)) ALOGE ("## %s assert %s failed at line:%d ##",__FUNCTION__, #s, __LINE__)
47
48
49
50
51 /*******************************************************************************
52 **
53 ** Function bta_pan_co_init
54 **
55 ** Description
56 **
57 **
58 ** Returns Data flow mask.
59 **
60 *******************************************************************************/
bta_pan_co_init(UINT8 * q_level)61 UINT8 bta_pan_co_init(UINT8 *q_level)
62 {
63
64 ALOGD("bta_pan_co_init");
65
66 /* set the q_level to 30 buffers */
67 *q_level = 30;
68
69 //return (BTA_PAN_RX_PULL | BTA_PAN_TX_PULL);
70 return (BTA_PAN_RX_PUSH_BUF | BTA_PAN_RX_PUSH | BTA_PAN_TX_PULL);
71 }
72
73
74
75
76 /*******************************************************************************
77 **
78 ** Function bta_pan_co_open
79 **
80 ** Description
81 **
82 **
83 **
84 **
85 **
86 ** Returns void
87 **
88 *******************************************************************************/
89
bta_pan_co_open(UINT16 handle,UINT8 app_id,tBTA_PAN_ROLE local_role,tBTA_PAN_ROLE peer_role,BD_ADDR peer_addr)90 void bta_pan_co_open(UINT16 handle, UINT8 app_id, tBTA_PAN_ROLE local_role, tBTA_PAN_ROLE peer_role, BD_ADDR peer_addr)
91 {
92 ALOGD("bta_pan_co_open:app_id:%d, local_role:%d, peer_role:%d, handle:%d",
93 app_id, local_role, peer_role, handle);
94 btpan_conn_t* conn = btpan_find_conn_addr(peer_addr);
95 if(conn == NULL)
96 conn = btpan_new_conn(handle, peer_addr, local_role, peer_role);
97 if(conn)
98 {
99 ALOGD("bta_pan_co_open:tap_fd:%d, open_count:%d, conn->handle:%d should = handle:%d, local_role:%d, remote_role:%d",
100 btpan_cb.tap_fd, btpan_cb.open_count, conn->handle, handle, conn->local_role, conn->remote_role);
101 //refresh the role & bt address
102
103 btpan_cb.open_count++;
104 conn->handle = handle;
105 //bdcpy(conn->peer, peer_addr);
106 if(btpan_cb.tap_fd < 0)
107 {
108 btpan_cb.tap_fd = btpan_tap_open();
109 if(btpan_cb.tap_fd >= 0)
110 create_tap_read_thread(btpan_cb.tap_fd);
111 }
112 if(btpan_cb.tap_fd >= 0)
113 {
114 conn->state = PAN_STATE_OPEN;
115 bta_pan_ci_rx_ready(handle);
116 }
117 }
118 }
119
120
121 /*******************************************************************************
122 **
123 ** Function bta_pan_co_close
124 **
125 ** Description This function is called by PAN when a connection to a
126 ** peer is closed.
127 **
128 **
129 ** Returns void
130 **
131 *******************************************************************************/
bta_pan_co_close(UINT16 handle,UINT8 app_id)132 void bta_pan_co_close(UINT16 handle, UINT8 app_id)
133 {
134 ALOGD("bta_pan_co_close:app_id:%d, handle:%d", app_id, handle);
135 btpan_conn_t* conn = btpan_find_conn_handle(handle);
136 if(conn && conn->state == PAN_STATE_OPEN)
137 {
138 ALOGD("bta_pan_co_close");
139
140 // let bta close event reset this handle as it needs
141 // the handle to find the connection upon CLOSE
142 //conn->handle = -1;
143 conn->state = PAN_STATE_CLOSE;
144 btpan_cb.open_count--;
145
146 if(btpan_cb.open_count == 0)
147 {
148 destroy_tap_read_thread();
149 if(btpan_cb.tap_fd != -1)
150 {
151 btpan_tap_close(btpan_cb.tap_fd);
152 btpan_cb.tap_fd = -1;
153 }
154 }
155 }
156 }
157
158 /*******************************************************************************
159 **
160 ** Function bta_pan_co_tx_path
161 **
162 ** Description This function is called by PAN to transfer data on the
163 ** TX path; that is, data being sent from BTA to the phone.
164 ** This function is used when the TX data path is configured
165 ** to use the pull interface. The implementation of this
166 ** function will typically call Bluetooth stack functions
167 ** PORT_Read() or PORT_ReadData() to read data from RFCOMM
168 ** and then a platform-specific function to send data that
169 ** data to the phone.
170 **
171 **
172 ** Returns void
173 **
174 *******************************************************************************/
bta_pan_co_tx_path(UINT16 handle,UINT8 app_id)175 void bta_pan_co_tx_path(UINT16 handle, UINT8 app_id)
176 {
177 BT_HDR *p_buf;
178 UINT8 i;
179 BD_ADDR src;
180 BD_ADDR dst;
181 UINT16 protocol;
182 BOOLEAN ext;
183 BOOLEAN forward;
184
185 ALOGD("bta_pan_co_tx_path, handle:%d, app_id:%d", handle, app_id);
186
187 btpan_conn_t* conn = btpan_find_conn_handle(handle);
188 if(conn && conn->state != PAN_STATE_OPEN)
189 {
190 ALOGE("bta_pan_co_tx_path: cannot find pan connction or conn is not opened, conn:%p, conn->state:%d", conn, conn->state);
191 return;
192 }
193 do
194 {
195
196 /* read next data buffer from pan */
197 if ((p_buf = bta_pan_ci_readbuf(handle, src, dst, &protocol,
198 &ext, &forward)))
199 {
200 ALOGD("bta_pan_co_tx_path, calling btapp_tap_send, p_buf->len:%d, offset:%d", p_buf->len, p_buf->offset);
201 if(is_empty_eth_addr(conn->eth_addr) && is_valid_bt_eth_addr(src))
202 {
203 ALOGD("pan bt peer addr: %02x:%02x:%02x:%02x:%02x:%02x, update its ethernet addr: %02x:%02x:%02x:%02x:%02x:%02x",
204 conn->peer[0], conn->peer[1], conn->peer[2], conn->peer[3],conn->peer[4], conn->peer[5],
205 src[0], src[1], src[2], src[3],src[4], src[5]);
206 memcpy(conn->eth_addr, src, sizeof(conn->eth_addr));
207
208 }
209 btpan_tap_send(btpan_cb.tap_fd, src, dst, protocol, (char*)(p_buf + 1) + p_buf->offset, p_buf->len, ext, forward);
210 GKI_freebuf(p_buf);
211 }
212
213 } while (p_buf != NULL);
214
215 }
216
217 /*******************************************************************************
218 **
219 ** Function bta_pan_co_rx_path
220 **
221 ** Description
222 **
223 **
224 **
225 **
226 ** Returns void
227 **
228 *******************************************************************************/
bta_pan_co_rx_path(UINT16 handle,UINT8 app_id)229 void bta_pan_co_rx_path(UINT16 handle, UINT8 app_id)
230 {
231
232
233 UINT8 i;
234
235 ALOGD("bta_pan_co_rx_path not used");
236
237
238 }
239
240 /*******************************************************************************
241 **
242 ** Function bta_pan_co_tx_write
243 **
244 ** Description This function is called by PAN to send data to the phone
245 ** when the TX path is configured to use a push interface.
246 ** The implementation of this function must copy the data to
247 ** the phone's memory.
248 **
249 **
250 ** Returns void
251 **
252 *******************************************************************************/
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)253 void bta_pan_co_tx_write(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst, UINT16 protocol, UINT8 *p_data,
254 UINT16 len, BOOLEAN ext, BOOLEAN forward)
255 {
256 ALOGD("bta_pan_co_tx_write not used");
257
258 }
259
260 /*******************************************************************************
261 **
262 ** Function bta_pan_co_tx_writebuf
263 **
264 ** Description This function is called by PAN to send data to the phone
265 ** when the TX path is configured to use a push interface with
266 ** zero copy. The phone must free the buffer using function
267 ** GKI_freebuf() when it is through processing the buffer.
268 **
269 **
270 ** Returns TRUE if flow enabled
271 **
272 *******************************************************************************/
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)273 void bta_pan_co_tx_writebuf(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf,
274 BOOLEAN ext, BOOLEAN forward)
275 {
276
277 ALOGD("bta_pan_co_tx_writebuf not used");
278
279
280 }
281
282 /*******************************************************************************
283 **
284 ** Function bta_pan_co_rx_flow
285 **
286 ** Description This function is called by PAN to enable or disable
287 ** data flow on the RX path when it is configured to use
288 ** a push interface. If data flow is disabled the phone must
289 ** not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf()
290 ** until data flow is enabled again.
291 **
292 **
293 ** Returns void
294 **
295 *******************************************************************************/
bta_pan_co_rx_flow(UINT16 handle,UINT8 app_id,BOOLEAN enable)296 void bta_pan_co_rx_flow(UINT16 handle, UINT8 app_id, BOOLEAN enable)
297 {
298
299 ALOGD("bta_pan_co_rx_flow, enabled:%d, not used", enable);
300
301 }
302
303
304 /*******************************************************************************
305 **
306 ** Function bta_pan_co_filt_ind
307 **
308 ** Description protocol filter indication from peer device
309 **
310 ** Returns void
311 **
312 *******************************************************************************/
bta_pan_co_pfilt_ind(UINT16 handle,BOOLEAN indication,tBTA_PAN_STATUS result,UINT16 len,UINT8 * p_filters)313 void bta_pan_co_pfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
314 UINT16 len, UINT8 *p_filters)
315 {
316 ALOGD("bta_pan_co_pfilt_ind");
317
318 }
319 /*******************************************************************************
320 **
321 ** Function bta_pan_co_mfilt_ind
322 **
323 ** Description multicast filter indication from peer device
324 **
325 ** Returns void
326 **
327 *******************************************************************************/
bta_pan_co_mfilt_ind(UINT16 handle,BOOLEAN indication,tBTA_PAN_STATUS result,UINT16 len,UINT8 * p_filters)328 void bta_pan_co_mfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result,
329 UINT16 len, UINT8 *p_filters)
330 {
331
332 ALOGD("bta_pan_co_mfilt_ind");
333 }
334
335