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_pan_co.h" 28 #include <hardware/bluetooth.h> 29 #include <hardware/bt_pan.h> 30 #include <string.h> 31 #include "bt_common.h" 32 #include "bta_api.h" 33 #include "bta_pan_api.h" 34 #include "bta_pan_ci.h" 35 #include "btcore/include/bdaddr.h" 36 #include "btif_pan_internal.h" 37 #include "btif_sock_thread.h" 38 #include "btif_util.h" 39 #include "osi/include/osi.h" 40 #include "pan_api.h" 41 42 /******************************************************************************* 43 * 44 * Function bta_pan_co_init 45 * 46 * Description 47 * 48 * 49 * Returns Data flow mask. 50 * 51 ******************************************************************************/ 52 uint8_t bta_pan_co_init(uint8_t* q_level) { 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_t handle, uint8_t app_id, tBTA_PAN_ROLE local_role, 76 tBTA_PAN_ROLE peer_role, BD_ADDR peer_addr) { 77 BTIF_TRACE_API( 78 "bta_pan_co_open:app_id:%d, local_role:%d, peer_role:%d, " 79 "handle:%d", 80 app_id, local_role, peer_role, handle); 81 btpan_conn_t* conn = btpan_find_conn_addr(peer_addr); 82 if (conn == NULL) 83 conn = btpan_new_conn(handle, peer_addr, local_role, peer_role); 84 if (conn) { 85 BTIF_TRACE_DEBUG( 86 "bta_pan_co_open:tap_fd:%d, open_count:%d, " 87 "conn->handle:%d should = handle:%d, local_role:%d, remote_role:%d", 88 btpan_cb.tap_fd, btpan_cb.open_count, conn->handle, handle, 89 conn->local_role, conn->remote_role); 90 // refresh the role & bt address 91 92 btpan_cb.open_count++; 93 conn->handle = handle; 94 // bdcpy(conn->peer, peer_addr); 95 if (btpan_cb.tap_fd < 0) { 96 btpan_cb.tap_fd = btpan_tap_open(); 97 if (btpan_cb.tap_fd >= 0) create_tap_read_thread(btpan_cb.tap_fd); 98 } 99 if (btpan_cb.tap_fd >= 0) { 100 btpan_cb.flow = 1; 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 ******************************************************************************/ 118 void bta_pan_co_close(uint16_t handle, uint8_t app_id) { 119 BTIF_TRACE_API("bta_pan_co_close:app_id:%d, handle:%d", app_id, handle); 120 btpan_conn_t* conn = btpan_find_conn_handle(handle); 121 if (conn && conn->state == PAN_STATE_OPEN) { 122 BTIF_TRACE_DEBUG("bta_pan_co_close"); 123 124 // let bta close event reset this handle as it needs 125 // the handle to find the connection upon CLOSE 126 // conn->handle = -1; 127 conn->state = PAN_STATE_CLOSE; 128 btpan_cb.open_count--; 129 130 if (btpan_cb.open_count == 0 && btpan_cb.tap_fd != -1) { 131 btpan_tap_close(btpan_cb.tap_fd); 132 btpan_cb.tap_fd = -1; 133 } 134 } 135 } 136 137 /******************************************************************************* 138 * 139 * Function bta_pan_co_tx_path 140 * 141 * Description This function is called by PAN to transfer data on the 142 * TX path; that is, data being sent from BTA to the phone. 143 * This function is used when the TX data path is configured 144 * to use the pull interface. The implementation of this 145 * function will typically call Bluetooth stack functions 146 * PORT_Read() or PORT_ReadData() to read data from RFCOMM 147 * and then a platform-specific function to send data that 148 * data to the phone. 149 * 150 * 151 * Returns void 152 * 153 ******************************************************************************/ 154 void bta_pan_co_tx_path(uint16_t handle, uint8_t app_id) { 155 BT_HDR* p_buf; 156 BD_ADDR src; 157 BD_ADDR dst; 158 uint16_t protocol; 159 bool ext; 160 bool forward; 161 162 BTIF_TRACE_API("%s, handle:%d, app_id:%d", __func__, handle, app_id); 163 164 btpan_conn_t* conn = btpan_find_conn_handle(handle); 165 if (!conn) { 166 BTIF_TRACE_ERROR("%s: cannot find pan connection", __func__); 167 return; 168 } else if (conn->state != PAN_STATE_OPEN) { 169 BTIF_TRACE_ERROR("%s: conn is not opened, conn:%p, conn->state:%d", 170 __func__, conn, conn->state); 171 return; 172 } 173 174 do { 175 /* read next data buffer from pan */ 176 p_buf = bta_pan_ci_readbuf(handle, src, dst, &protocol, &ext, &forward); 177 if (p_buf) { 178 bdstr_t bdstr; 179 BTIF_TRACE_DEBUG( 180 "%s, calling btapp_tap_send, " 181 "p_buf->len:%d, offset:%d", 182 __func__, p_buf->len, p_buf->offset); 183 if (is_empty_eth_addr(conn->eth_addr) && is_valid_bt_eth_addr(src)) { 184 BTIF_TRACE_DEBUG( 185 "%s pan bt peer addr: %s", __func__, 186 bdaddr_to_string((bt_bdaddr_t*)conn->peer, bdstr, sizeof(bdstr))); 187 bdaddr_to_string((bt_bdaddr_t*)src, bdstr, sizeof(bdstr)); 188 BTIF_TRACE_DEBUG( 189 "%s: update its ethernet addr: %s", __func__, 190 bdaddr_to_string((bt_bdaddr_t*)src, bdstr, sizeof(bdstr))); 191 memcpy(conn->eth_addr, src, sizeof(conn->eth_addr)); 192 } 193 btpan_tap_send(btpan_cb.tap_fd, src, dst, protocol, 194 (char*)(p_buf + 1) + p_buf->offset, p_buf->len, ext, 195 forward); 196 osi_free(p_buf); 197 } 198 199 } while (p_buf != NULL); 200 } 201 202 /******************************************************************************* 203 * 204 * Function bta_pan_co_rx_path 205 * 206 * Description 207 * 208 * 209 * 210 * 211 * Returns void 212 * 213 ******************************************************************************/ 214 void bta_pan_co_rx_path(UNUSED_ATTR uint16_t handle, 215 UNUSED_ATTR uint8_t app_id) { 216 BTIF_TRACE_API("bta_pan_co_rx_path not used"); 217 } 218 219 /******************************************************************************* 220 * 221 * Function bta_pan_co_tx_write 222 * 223 * Description This function is called by PAN to send data to the phone 224 * when the TX path is configured to use a push interface. 225 * The implementation of this function must copy the data to 226 * the phone's memory. 227 * 228 * 229 * Returns void 230 * 231 ******************************************************************************/ 232 void bta_pan_co_tx_write(UNUSED_ATTR uint16_t handle, 233 UNUSED_ATTR uint8_t app_id, UNUSED_ATTR BD_ADDR src, 234 UNUSED_ATTR BD_ADDR dst, UNUSED_ATTR uint16_t protocol, 235 UNUSED_ATTR uint8_t* p_data, UNUSED_ATTR uint16_t len, 236 UNUSED_ATTR bool ext, UNUSED_ATTR bool forward) { 237 BTIF_TRACE_API("bta_pan_co_tx_write not used"); 238 } 239 240 /******************************************************************************* 241 * 242 * Function bta_pan_co_tx_writebuf 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 with 246 * zero copy. The phone must free the buffer using function 247 * osi_free() when it is through processing the buffer. 248 * 249 * 250 * Returns true if flow enabled 251 * 252 ******************************************************************************/ 253 void bta_pan_co_tx_writebuf(UNUSED_ATTR uint16_t handle, 254 UNUSED_ATTR uint8_t app_id, UNUSED_ATTR BD_ADDR src, 255 UNUSED_ATTR BD_ADDR dst, 256 UNUSED_ATTR uint16_t protocol, 257 UNUSED_ATTR BT_HDR* p_buf, UNUSED_ATTR bool ext, 258 UNUSED_ATTR bool forward) { 259 BTIF_TRACE_API("bta_pan_co_tx_writebuf not used"); 260 } 261 262 /******************************************************************************* 263 * 264 * Function bta_pan_co_rx_flow 265 * 266 * Description This function is called by PAN to enable or disable 267 * data flow on the RX path when it is configured to use 268 * a push interface. If data flow is disabled the phone must 269 * not call bta_pan_ci_rx_write() or bta_pan_ci_rx_writebuf() 270 * until data flow is enabled again. 271 * 272 * 273 * Returns void 274 * 275 ******************************************************************************/ 276 void bta_pan_co_rx_flow(UNUSED_ATTR uint16_t handle, UNUSED_ATTR uint8_t app_id, 277 UNUSED_ATTR bool enable) { 278 BTIF_TRACE_API("bta_pan_co_rx_flow, enabled:%d, not used", enable); 279 btpan_conn_t* conn = btpan_find_conn_handle(handle); 280 if (!conn || conn->state != PAN_STATE_OPEN) return; 281 btpan_set_flow_control(enable); 282 } 283 284 /******************************************************************************* 285 * 286 * Function bta_pan_co_filt_ind 287 * 288 * Description protocol filter indication from peer device 289 * 290 * Returns void 291 * 292 ******************************************************************************/ 293 void bta_pan_co_pfilt_ind(UNUSED_ATTR uint16_t handle, 294 UNUSED_ATTR bool indication, 295 UNUSED_ATTR tBTA_PAN_STATUS result, 296 UNUSED_ATTR uint16_t len, 297 UNUSED_ATTR uint8_t* p_filters) { 298 BTIF_TRACE_API("bta_pan_co_pfilt_ind"); 299 } 300 301 /******************************************************************************* 302 * 303 * Function bta_pan_co_mfilt_ind 304 * 305 * Description multicast filter indication from peer device 306 * 307 * Returns void 308 * 309 ******************************************************************************/ 310 void bta_pan_co_mfilt_ind(UNUSED_ATTR uint16_t handle, 311 UNUSED_ATTR bool indication, 312 UNUSED_ATTR tBTA_PAN_STATUS result, 313 UNUSED_ATTR uint16_t len, 314 UNUSED_ATTR uint8_t* p_filters) { 315 BTIF_TRACE_API("bta_pan_co_mfilt_ind"); 316 } 317
