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 *******************************************************************************/ 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 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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 *******************************************************************************/ 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