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 "btif_sock_thread.h" 37 #include <string.h> 38 #include "btif_util.h" 39 #include "btcore/include/bdaddr.h" 40 41 /******************************************************************************* 42 ** 43 ** Function bta_pan_co_init 44 ** 45 ** Description 46 ** 47 ** 48 ** Returns Data flow mask. 49 ** 50 *******************************************************************************/ 51 UINT8 bta_pan_co_init(UINT8 *q_level) 52 { 53 BTIF_TRACE_API("bta_pan_co_init"); 54 55 /* set the q_level to 30 buffers */ 56 *q_level = 30; 57 58 //return (BTA_PAN_RX_PULL | BTA_PAN_TX_PULL); 59 return (BTA_PAN_RX_PUSH_BUF | BTA_PAN_RX_PUSH | BTA_PAN_TX_PULL); 60 } 61 62 /****************************************************************************** 63 ** 64 ** Function bta_pan_co_open 65 ** 66 ** Description 67 ** 68 ** 69 ** 70 ** 71 ** 72 ** Returns void 73 ** 74 *******************************************************************************/ 75 void bta_pan_co_open(UINT16 handle, UINT8 app_id, tBTA_PAN_ROLE local_role, 76 tBTA_PAN_ROLE peer_role, BD_ADDR peer_addr) 77 { 78 BTIF_TRACE_API("bta_pan_co_open:app_id:%d, local_role:%d, peer_role:%d, " 79 "handle:%d", app_id, local_role, peer_role, handle); 80 btpan_conn_t* conn = btpan_find_conn_addr(peer_addr); 81 if(conn == NULL) 82 conn = btpan_new_conn(handle, peer_addr, local_role, peer_role); 83 if(conn) 84 { 85 BTIF_TRACE_DEBUG("bta_pan_co_open:tap_fd:%d, open_count:%d, " 86 "conn->handle:%d should = handle:%d, local_role:%d, remote_role:%d", 87 btpan_cb.tap_fd, btpan_cb.open_count, conn->handle, handle, 88 conn->local_role, conn->remote_role); 89 //refresh the role & bt address 90 91 btpan_cb.open_count++; 92 conn->handle = handle; 93 //bdcpy(conn->peer, peer_addr); 94 if(btpan_cb.tap_fd < 0) 95 { 96 btpan_cb.tap_fd = btpan_tap_open(); 97 if(btpan_cb.tap_fd >= 0) 98 create_tap_read_thread(btpan_cb.tap_fd); 99 } 100 if(btpan_cb.tap_fd >= 0) 101 { 102 btpan_cb.flow = 1; 103 conn->state = PAN_STATE_OPEN; 104 bta_pan_ci_rx_ready(handle); 105 } 106 } 107 } 108 109 /******************************************************************************* 110 ** 111 ** Function bta_pan_co_close 112 ** 113 ** Description This function is called by PAN when a connection to a 114 ** peer is closed. 115 ** 116 ** 117 ** Returns void 118 ** 119 *******************************************************************************/ 120 void bta_pan_co_close(UINT16 handle, UINT8 app_id) 121 { 122 BTIF_TRACE_API("bta_pan_co_close:app_id:%d, handle:%d", app_id, handle); 123 btpan_conn_t* conn = btpan_find_conn_handle(handle); 124 if(conn && conn->state == PAN_STATE_OPEN) 125 { 126 BTIF_TRACE_DEBUG("bta_pan_co_close"); 127 128 // let bta close event reset this handle as it needs 129 // the handle to find the connection upon CLOSE 130 //conn->handle = -1; 131 conn->state = PAN_STATE_CLOSE; 132 btpan_cb.open_count--; 133 134 if(btpan_cb.open_count == 0 && btpan_cb.tap_fd != -1) 135 { 136 btpan_tap_close(btpan_cb.tap_fd); 137 btpan_cb.tap_fd = -1; 138 } 139 } 140 } 141 142 /******************************************************************************* 143 ** 144 ** Function bta_pan_co_tx_path 145 ** 146 ** Description This function is called by PAN to transfer data on the 147 ** TX path; that is, data being sent from BTA to the phone. 148 ** This function is used when the TX data path is configured 149 ** to use the pull interface. The implementation of this 150 ** function will typically call Bluetooth stack functions 151 ** PORT_Read() or PORT_ReadData() to read data from RFCOMM 152 ** and then a platform-specific function to send data that 153 ** data to the phone. 154 ** 155 ** 156 ** Returns void 157 ** 158 *******************************************************************************/ 159 void bta_pan_co_tx_path(UINT16 handle, UINT8 app_id) 160 { 161 BT_HDR *p_buf; 162 BD_ADDR src; 163 BD_ADDR dst; 164 UINT16 protocol; 165 BOOLEAN ext; 166 BOOLEAN forward; 167 168 BTIF_TRACE_API("%s, handle:%d, app_id:%d", __func__, handle, app_id); 169 170 btpan_conn_t* conn = btpan_find_conn_handle(handle); 171 if (!conn) 172 { 173 BTIF_TRACE_ERROR("%s: cannot find pan connection", __func__); 174 return; 175 } 176 else if(conn->state != PAN_STATE_OPEN) 177 { 178 BTIF_TRACE_ERROR("%s: conn is not opened, conn:%p, conn->state:%d", 179 __func__, conn, conn->state); 180 return; 181 } 182 183 do 184 { 185 /* read next data buffer from pan */ 186 if ((p_buf = bta_pan_ci_readbuf(handle, src, dst, &protocol, 187 &ext, &forward))) 188 { 189 bdstr_t bdstr; 190 BTIF_TRACE_DEBUG("%s, calling btapp_tap_send, " 191 "p_buf->len:%d, offset:%d", __func__, p_buf->len, p_buf->offset); 192 if(is_empty_eth_addr(conn->eth_addr) && is_valid_bt_eth_addr(src)) 193 { 194 BTIF_TRACE_DEBUG("%s pan bt peer addr: %s", __func__, 195 bdaddr_to_string((bt_bdaddr_t *)conn->peer, bdstr, sizeof(bdstr))); 196 bdaddr_to_string((bt_bdaddr_t *)src, bdstr, sizeof(bdstr)); 197 BTIF_TRACE_DEBUG("%s: update its ethernet addr: %s", __func__, 198 bdaddr_to_string((bt_bdaddr_t *)src, bdstr, sizeof(bdstr))); 199 memcpy(conn->eth_addr, src, sizeof(conn->eth_addr)); 200 201 } 202 btpan_tap_send(btpan_cb.tap_fd, src, dst, protocol, 203 (char*)(p_buf + 1) + p_buf->offset, p_buf->len, ext, forward); 204 GKI_freebuf(p_buf); 205 } 206 207 } while (p_buf != NULL); 208 } 209 210 /******************************************************************************* 211 ** 212 ** Function bta_pan_co_rx_path 213 ** 214 ** Description 215 ** 216 ** 217 ** 218 ** 219 ** Returns void 220 ** 221 *******************************************************************************/ 222 void bta_pan_co_rx_path(UINT16 handle, UINT8 app_id) 223 { 224 UNUSED(handle); 225 UNUSED(app_id); 226 227 BTIF_TRACE_API("bta_pan_co_rx_path not used"); 228 } 229 230 /******************************************************************************* 231 ** 232 ** Function bta_pan_co_tx_write 233 ** 234 ** Description This function is called by PAN to send data to the phone 235 ** when the TX path is configured to use a push interface. 236 ** The implementation of this function must copy the data to 237 ** the phone's memory. 238 ** 239 ** 240 ** Returns void 241 ** 242 *******************************************************************************/ 243 void bta_pan_co_tx_write(UINT16 handle, UINT8 app_id, BD_ADDR src, BD_ADDR dst, 244 UINT16 protocol, UINT8 *p_data, 245 UINT16 len, BOOLEAN ext, BOOLEAN forward) 246 { 247 UNUSED(handle); 248 UNUSED(app_id); 249 UNUSED(src); 250 UNUSED(dst); 251 UNUSED(protocol); 252 UNUSED(p_data); 253 UNUSED(len); 254 UNUSED(ext); 255 UNUSED(forward); 256 257 BTIF_TRACE_API("bta_pan_co_tx_write not used"); 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 *******************************************************************************/ 273 void bta_pan_co_tx_writebuf(UINT16 handle, UINT8 app_id, BD_ADDR src, 274 BD_ADDR dst, UINT16 protocol, BT_HDR *p_buf, 275 BOOLEAN ext, BOOLEAN forward) 276 { 277 UNUSED(handle); 278 UNUSED(app_id); 279 UNUSED(src); 280 UNUSED(dst); 281 UNUSED(protocol); 282 UNUSED(p_buf); 283 UNUSED(ext); 284 UNUSED(forward); 285 286 BTIF_TRACE_API("bta_pan_co_tx_writebuf not used"); 287 } 288 289 /******************************************************************************* 290 ** 291 ** Function bta_pan_co_rx_flow 292 ** 293 ** Description This function is called by PAN to enable or disable 294 ** data flow on the RX path when it is configured to use 295 ** a push interface. If data flow is disabled the phone must 296 ** not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf() 297 ** until data flow is enabled again. 298 ** 299 ** 300 ** Returns void 301 ** 302 *******************************************************************************/ 303 void bta_pan_co_rx_flow(UINT16 handle, UINT8 app_id, BOOLEAN enable) 304 { 305 UNUSED(handle); 306 UNUSED(app_id); 307 UNUSED(enable); 308 309 BTIF_TRACE_API("bta_pan_co_rx_flow, enabled:%d, not used", enable); 310 btpan_conn_t* conn = btpan_find_conn_handle(handle); 311 if(!conn || conn->state != PAN_STATE_OPEN) 312 return; 313 btpan_set_flow_control(enable); 314 } 315 316 /******************************************************************************* 317 ** 318 ** Function bta_pan_co_filt_ind 319 ** 320 ** Description protocol filter indication from peer device 321 ** 322 ** Returns void 323 ** 324 *******************************************************************************/ 325 void bta_pan_co_pfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result, 326 UINT16 len, UINT8 *p_filters) 327 { 328 UNUSED(handle); 329 UNUSED(indication); 330 UNUSED(result); 331 UNUSED(len); 332 UNUSED(p_filters); 333 334 BTIF_TRACE_API("bta_pan_co_pfilt_ind"); 335 } 336 337 /******************************************************************************* 338 ** 339 ** Function bta_pan_co_mfilt_ind 340 ** 341 ** Description multicast filter indication from peer device 342 ** 343 ** Returns void 344 ** 345 *******************************************************************************/ 346 void bta_pan_co_mfilt_ind(UINT16 handle, BOOLEAN indication, tBTA_PAN_STATUS result, 347 UINT16 len, UINT8 *p_filters) 348 { 349 UNUSED(handle); 350 UNUSED(indication); 351 UNUSED(result); 352 UNUSED(len); 353 UNUSED(p_filters); 354 355 BTIF_TRACE_API("bta_pan_co_mfilt_ind"); 356 } 357 358
