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