1 /****************************************************************************** 2 * 3 * Copyright (C) 1999-2012 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 #include "OverrideLog.h" 20 #include <string.h> 21 #include "gki.h" 22 #include "nfc_hal_api.h" 23 #include "nfc_hal_int.h" 24 #include "userial.h" 25 #include "nfc_target.h" 26 27 #include <pthread.h> 28 #include <termios.h> 29 #include <fcntl.h> 30 #include <errno.h> 31 #include <stdio.h> 32 #include <gki_int.h> 33 #include "hcidefs.h" 34 #include <poll.h> 35 #include "upio.h" 36 #include "bcm2079x.h" 37 #include "config.h" 38 39 #define HCISU_EVT EVENT_MASK(APPL_EVT_0) 40 #define MAX_ERROR 10 41 #define default_transport "/dev/bcm2079x" 42 43 #define NUM_RESET_ATTEMPTS 5 44 #define NFC_WAKE_ASSERTED_ON_POR UPIO_OFF 45 46 #ifndef BTE_APPL_MAX_USERIAL_DEV_NAME 47 #define BTE_APPL_MAX_USERIAL_DEV_NAME (256) 48 #endif 49 extern UINT8 appl_trace_level; 50 51 /* Mapping of USERIAL_PORT_x to linux */ 52 extern UINT32 ScrProtocolTraceFlag; 53 static tUPIO_STATE current_nfc_wake_state = UPIO_OFF; 54 int uart_port = 0; 55 int isLowSpeedTransport = 0; 56 int nfc_wake_delay = 0; 57 int nfc_write_delay = 0; 58 int gPowerOnDelay = 300; 59 static int gPrePowerOffDelay = 0; // default value 60 static int gPostPowerOffDelay = 0; // default value 61 static pthread_mutex_t close_thread_mutex = PTHREAD_MUTEX_INITIALIZER; 62 63 char userial_dev[BTE_APPL_MAX_USERIAL_DEV_NAME+1]; 64 char power_control_dev[BTE_APPL_MAX_USERIAL_DEV_NAME+1]; 65 tSNOOZE_MODE_CONFIG gSnoozeModeCfg = { 66 NFC_HAL_LP_SNOOZE_MODE_SPI_I2C, /* Sleep Mode (0=Disabled 1=UART 8=SPI/I2C) */ 67 NFC_HAL_LP_IDLE_THRESHOLD_HOST, /* Idle Threshold Host */ 68 NFC_HAL_LP_IDLE_THRESHOLD_HC, /* Idle Threshold HC */ 69 NFC_HAL_LP_ACTIVE_LOW, /* NFC Wake active mode (0=ActiveLow 1=ActiveHigh) */ 70 NFC_HAL_LP_ACTIVE_HIGH /* Host Wake active mode (0=ActiveLow 1=ActiveHigh) */ 71 }; 72 73 UINT8 bcmi2cnfc_client_addr = 0; 74 UINT8 bcmi2cnfc_read_multi_packets = 0; 75 76 #define USERIAL_Debug_verbose ((ScrProtocolTraceFlag & 0x80000000) == 0x80000000) 77 78 #include <sys/socket.h> 79 80 #define LOG_TAG "USERIAL_LINUX" 81 82 static UINT8 spi_negotiation[10] = { 0xF0, /* CMD */ 83 0x00, /* SPI PARM Negotiation */ 84 0x01, /* SPI Version */ 85 0x00, /* SPI Mode:0, SPI_INT active low */ 86 0x00, /* 8Bit, MSB first, Little Endian byte order */ 87 0x00, /* Reserved */ 88 0xFF, /* Sleep timeout Lower Byte */ 89 0xFF, /* Sleep timeout Upper Byte */ 90 0x00, /* Reserved */ 91 0x00 /* Reserved */ 92 }; 93 static UINT8 spi_nego_res[20]; 94 95 #include <ctype.h> 96 97 #define USING_BRCM_USB TRUE 98 99 /* use tc interface to change baudrate instead of close/open sequence which can fail on some platforms 100 * due to tx line movement when opeing/closing the UART. the 43xx do not like this. */ 101 #ifndef USERIAL_USE_TCIO_BAUD_CHANGE 102 #define USERIAL_USE_TCIO_BAUD_CHANGE FALSE 103 #endif 104 105 #ifndef USERIAL_USE_IO_BT_WAKE 106 #define USERIAL_USE_IO_BT_WAKE FALSE 107 #endif 108 109 /* this are the ioctl values used for bt_wake ioctl via UART driver. you may need to redefine at for 110 * you platform! Logically they need to be unique and not colide with existing uart ioctl's. 111 */ 112 #ifndef USERIAL_IO_BT_WAKE_ASSERT 113 #define USERIAL_IO_BT_WAKE_ASSERT 0x8003 114 #endif 115 #ifndef USERIAL_IO_BT_WAKE_DEASSERT 116 #define USERIAL_IO_BT_WAKE_DEASSERT 0x8004 117 #endif 118 #ifndef USERIAL_IO_BT_WAKE_GET_ST 119 #define USERIAL_IO_BT_WAKE_GET_ST 0x8005 120 #endif 121 122 /* the read limit in this current implementation depends on the GKI_BUF3_SIZE 123 * It would be better to use some ring buffer from the USERIAL_Read() is reading 124 * instead of putting it into GKI buffers. 125 */ 126 #define READ_LIMIT (USERIAL_POOL_BUF_SIZE-BT_HDR_SIZE) 127 /* 128 * minimum buffer size requirement to read a full sized packet from NFCC = 255 + 4 byte header 129 */ 130 #define MIN_BUFSIZE 259 131 #define POLL_TIMEOUT 1000 132 /* priority of the reader thread */ 133 #define USERIAL_READ_TRHEAD_PRIO 90 134 /* time (ms) to wait before trying to allocate again a GKI buffer */ 135 #define NO_GKI_BUFFER_RECOVER_TIME 100 136 #define MAX_SERIAL_PORT (USERIAL_PORT_15 + 1) 137 138 extern void dumpbin(const char* data, int size); 139 extern UINT8 *scru_dump_hex (UINT8 *p, char *p_title, UINT32 len, UINT32 trace_layer, UINT32 trace_type); 140 141 static pthread_t worker_thread1 = 0; 142 143 typedef struct { 144 volatile unsigned long bt_wake_state; 145 int sock; 146 tUSERIAL_CBACK *ser_cb; 147 UINT16 baud; 148 UINT8 data_bits; 149 UINT16 parity; 150 UINT8 stop_bits; 151 UINT8 port; 152 tUSERIAL_OPEN_CFG open_cfg; 153 int sock_power_control; 154 int client_device_address; 155 struct timespec write_time; 156 } tLINUX_CB; 157 158 static tLINUX_CB linux_cb; /* case of multipel port support use array : [MAX_SERIAL_PORT] */ 159 160 void userial_close_thread(UINT32 params); 161 162 static UINT8 device_name[BTE_APPL_MAX_USERIAL_DEV_NAME+1]; 163 static int bSerialPortDevice = FALSE; 164 static int _timeout = POLL_TIMEOUT; 165 static BOOLEAN is_close_thread_is_waiting = FALSE; 166 167 168 int perf_log_every_count = 0; 169 typedef struct { 170 const char* label; 171 long lapse; 172 long bytes; 173 long count; 174 long overhead; 175 } tPERF_DATA; 176 177 /******************************************************************************* 178 ** 179 ** Function perf_reset 180 ** 181 ** Description reset performance measurement data 182 ** 183 ** Returns none 184 ** 185 *******************************************************************************/ 186 void perf_reset(tPERF_DATA* t) 187 { 188 t->count = 189 t->bytes = 190 t->lapse = 0; 191 } 192 193 /******************************************************************************* 194 ** 195 ** Function perf_log 196 ** 197 ** Description produce a log entry of cvurrent performance data 198 ** 199 ** Returns none 200 ** 201 *******************************************************************************/ 202 void perf_log(tPERF_DATA* t) 203 { 204 // round to nearest ms 205 // t->lapse += 500; 206 // t->lapse /= 1000; 207 if (t->lapse) 208 { 209 if (t->bytes) 210 ALOGD( "%s:%s, bytes=%ld, lapse=%ld (%d.%02d kbps) (bus data rate %d.%02d kbps) overhead %d(%d percent)\n", 211 __func__, 212 t->label, t->bytes, t->lapse, 213 (int)(8 * t->bytes / t->lapse), (int)(800 * t->bytes / (t->lapse)) % 100, 214 (int)(9 * (t->bytes + t->count * t->overhead) / t->lapse), (int)(900 * (t->bytes + t->count * t->overhead) / (t->lapse)) % 100, 215 (int)(t->count * t->overhead), (int)(t->count * t->overhead * 100 / t->bytes) 216 ); 217 else 218 ALOGD( "%s:%s, lapse=%ld (average %ld)\n", __func__, 219 t->label, t->lapse, (int)t->lapse / t->count 220 ); 221 } 222 perf_reset(t); 223 } 224 225 /******************************************************************************* 226 ** 227 ** Function perf_update 228 ** 229 ** Description update perforamnce measurement data 230 ** 231 ** Returns none 232 ** 233 *******************************************************************************/ 234 void perf_update(tPERF_DATA* t, long lapse, long bytes) 235 { 236 if (!perf_log_every_count) 237 return; 238 // round to nearest ms 239 lapse += 500; 240 lapse /= 1000; 241 t->count++; 242 t->bytes += bytes; 243 t->lapse += lapse; 244 if (t->count == perf_log_every_count) 245 perf_log(t); 246 } 247 248 static tPERF_DATA perf_poll = {"USERIAL_Poll", 0, 0, 0, 0}; 249 static tPERF_DATA perf_read = {"USERIAL_Read", 0, 0, 0, 9}; 250 static tPERF_DATA perf_write = {"USERIAL_Write", 0, 0, 0, 3}; 251 static tPERF_DATA perf_poll_2_poll = {"USERIAL_Poll_to_Poll", 0, 0, 0, 0}; 252 static clock_t _poll_t0 = 0; 253 254 static UINT32 userial_baud_tbl[] = 255 { 256 300, /* USERIAL_BAUD_300 0 */ 257 600, /* USERIAL_BAUD_600 1 */ 258 1200, /* USERIAL_BAUD_1200 2 */ 259 2400, /* USERIAL_BAUD_2400 3 */ 260 9600, /* USERIAL_BAUD_9600 4 */ 261 19200, /* USERIAL_BAUD_19200 5 */ 262 57600, /* USERIAL_BAUD_57600 6 */ 263 115200, /* USERIAL_BAUD_115200 7 */ 264 230400, /* USERIAL_BAUD_230400 8 */ 265 460800, /* USERIAL_BAUD_460800 9 */ 266 921600, /* USERIAL_BAUD_921600 10 */ 267 1000000, /* USERIAL_BAUD_1M 11 */ 268 1500000, /* USERIAL_BAUD_1_5M 12 */ 269 2000000, /* USERIAL_BAUD_2M 13 */ 270 3000000, /* USERIAL_BAUD_3M 14 */ 271 4000000 /* USERIAL_BAUD_4M 15 */ 272 }; 273 274 /******************************************************************************* 275 ** 276 ** Function wake_state 277 ** 278 ** Description return current state of NFC_WAKE gpio 279 ** 280 ** Returns GPIO value to wake NFCC 281 ** 282 *******************************************************************************/ 283 static inline int wake_state() 284 { 285 return ((gSnoozeModeCfg.nfc_wake_active_mode == NFC_HAL_LP_ACTIVE_HIGH) ? UPIO_ON : UPIO_OFF); 286 } 287 288 /******************************************************************************* 289 ** 290 ** Function sleep_state 291 ** 292 ** Description return current state of NFC_WAKE gpio 293 ** 294 ** Returns GPIO value to allow NFCC to goto sleep 295 ** 296 *******************************************************************************/ 297 static inline int sleep_state() 298 { 299 return ((gSnoozeModeCfg.nfc_wake_active_mode == NFC_HAL_LP_ACTIVE_HIGH) ? UPIO_OFF : UPIO_ON); 300 } 301 302 /******************************************************************************* 303 ** 304 ** Function isWake 305 ** 306 ** Description return current state of NFC_WAKE gpio based on the active mode setting 307 ** 308 ** Returns asserted_state if it's awake, deasserted_state if it's allowed to sleep 309 ** 310 *******************************************************************************/ 311 static inline int isWake(int state) 312 { 313 int asserted_state = ((gSnoozeModeCfg.nfc_wake_active_mode == NFC_HAL_LP_ACTIVE_HIGH) ? UPIO_ON : UPIO_OFF); 314 return (state != -1) ? 315 state == asserted_state : 316 current_nfc_wake_state == asserted_state; 317 } 318 319 /******************************************************************************* 320 ** 321 ** Function setWriteDelay 322 ** 323 ** Description Record a delay for the next write operation 324 ** 325 ** Input Parameter delay in milliseconds 326 ** 327 ** Comments use this function to register a delay before next write, 328 ** This is used in three instances: power up delay, wake delay 329 ** and write delay 330 ** 331 *******************************************************************************/ 332 static void setWriteDelay(int delay) 333 { 334 if (delay <= 0) { 335 // Set a minimum delay of 5ms between back-to-back writes 336 delay = 5; 337 } 338 339 clock_gettime(CLOCK_MONOTONIC, &linux_cb.write_time); 340 if (delay > 1000) 341 { 342 linux_cb.write_time.tv_sec += delay / 1000; 343 delay %= 1000; 344 } 345 unsigned long write_delay = delay * 1000 * 1000; 346 linux_cb.write_time.tv_nsec += write_delay; 347 if (linux_cb.write_time.tv_nsec > 1000*1000*1000) 348 { 349 linux_cb.write_time.tv_nsec -= 1000*1000*1000; 350 linux_cb.write_time.tv_sec++; 351 } 352 } 353 354 /******************************************************************************* 355 ** 356 ** Function doWriteDelay 357 ** 358 ** Description Execute a delay as registered in setWriteDelay() 359 ** 360 ** Output Parameter none 361 ** 362 ** Returns none 363 ** 364 ** Comments This function calls GKI_Delay to execute a delay to fulfill 365 ** the delay registered earlier. 366 ** 367 *******************************************************************************/ 368 static void doWriteDelay() 369 { 370 struct timespec now; 371 clock_gettime(CLOCK_MONOTONIC, &now); 372 long delay = 0; 373 374 if (now.tv_sec > linux_cb.write_time.tv_sec) 375 return; 376 else if (now.tv_sec == linux_cb.write_time.tv_sec) 377 { 378 if (now.tv_nsec > linux_cb.write_time.tv_nsec) 379 return; 380 delay = (linux_cb.write_time.tv_nsec - now.tv_nsec) / 1000000; 381 } 382 else 383 delay = (linux_cb.write_time.tv_sec - now.tv_sec) * 1000 + linux_cb.write_time.tv_nsec / 1000000 - now.tv_nsec / 1000000; 384 385 if (delay > 0 && delay < 1000) 386 { 387 ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "doWriteDelay() delay %ld ms", delay); 388 GKI_delay(delay); 389 } 390 } 391 392 /******************************************************************************* 393 ** 394 ** Function create_signal_fds 395 ** 396 ** Description create a socketpair for read thread to use 397 ** 398 ** Returns file descriptor 399 ** 400 *******************************************************************************/ 401 402 static int signal_fds[2]; 403 static inline int create_signal_fds(struct pollfd* set) 404 { 405 if (signal_fds[0] == 0 && socketpair(AF_UNIX, SOCK_STREAM, 0, signal_fds) < 0) 406 { 407 ALOGE("%s create_signal_sockets:socketpair failed, errno: %d", __func__, errno); 408 return -1; 409 } 410 set->fd = signal_fds[0]; 411 return signal_fds[0]; 412 } 413 414 /******************************************************************************* 415 ** 416 ** Function close_signal_fds 417 ** 418 ** Description close the socketpair 419 ** 420 ** Returns none 421 ** 422 *******************************************************************************/ 423 static inline void close_signal_fds() 424 { 425 close(signal_fds[0]); 426 signal_fds[0] = 0; 427 428 close(signal_fds[1]); 429 signal_fds[1] = 0; 430 } 431 432 /******************************************************************************* 433 ** 434 ** Function send_wakeup_signal 435 ** 436 ** Description send a one byte data to the socket as signal to the read thread 437 ** for it to stop 438 ** 439 ** Returns number of bytes sent, or error no 440 ** 441 *******************************************************************************/ 442 static inline int send_wakeup_signal() 443 { 444 char sig_on = 1; 445 ALOGD("%s: Sending signal to %d", __func__, signal_fds[1]); 446 return send(signal_fds[1], &sig_on, sizeof(sig_on), 0); 447 } 448 449 /******************************************************************************* 450 ** 451 ** Function reset_signal 452 ** 453 ** Description read the one byte data from the socket 454 ** 455 ** Returns received data 456 ** 457 *******************************************************************************/ 458 static inline int reset_signal() 459 { 460 char sig_recv = 0; 461 ALOGD("%s: Receiving signal from %d", __func__, signal_fds[0]); 462 recv(signal_fds[0], &sig_recv, sizeof(sig_recv), MSG_WAITALL); 463 return (int)sig_recv; 464 } 465 466 /******************************************************************************* 467 ** 468 ** Function is_signaled 469 ** 470 ** Description test if there's data waiting on the socket 471 ** 472 ** Returns TRUE is data is available 473 ** 474 *******************************************************************************/ 475 static inline int is_signaled(struct pollfd* set) 476 { 477 return ((set->revents & POLLIN) == POLLIN) || ((set->revents & POLLRDNORM) == POLLRDNORM) ; 478 } 479 480 /******************************************************************************/ 481 482 typedef unsigned char uchar; 483 484 BUFFER_Q Userial_in_q; 485 486 /******************************************************************************* 487 ** 488 ** Function USERIAL_GetLineSpeed 489 ** 490 ** Description This function convert USERIAL baud to line speed. 491 ** 492 ** Output Parameter None 493 ** 494 ** Returns line speed 495 ** 496 *******************************************************************************/ 497 UDRV_API extern UINT32 USERIAL_GetLineSpeed(UINT8 baud) 498 { 499 return (baud <= USERIAL_BAUD_4M) ? 500 userial_baud_tbl[baud-USERIAL_BAUD_300] : 0; 501 } 502 503 /******************************************************************************* 504 ** 505 ** Function USERIAL_GetBaud 506 ** 507 ** Description This function convert line speed to USERIAL baud. 508 ** 509 ** Output Parameter None 510 ** 511 ** Returns line speed 512 ** 513 *******************************************************************************/ 514 UDRV_API extern UINT8 USERIAL_GetBaud(UINT32 line_speed) 515 { 516 UINT8 i; 517 for (i = USERIAL_BAUD_300; i <= USERIAL_BAUD_921600; i++) 518 { 519 if (userial_baud_tbl[i-USERIAL_BAUD_300] == line_speed) 520 return i; 521 } 522 523 return USERIAL_BAUD_AUTO; 524 } 525 526 /******************************************************************************* 527 ** 528 ** Function USERIAL_Init 529 ** 530 ** Description This function initializes the serial driver. 531 ** 532 ** Output Parameter None 533 ** 534 ** Returns Nothing 535 ** 536 *******************************************************************************/ 537 538 UDRV_API void USERIAL_Init(void * p_cfg) 539 { 540 ALOGI(__FUNCTION__); 541 542 memset(&linux_cb, 0, sizeof(linux_cb)); 543 linux_cb.sock = -1; 544 linux_cb.ser_cb = NULL; 545 linux_cb.sock_power_control = -1; 546 linux_cb.client_device_address = 0; 547 GKI_init_q(&Userial_in_q); 548 return; 549 } 550 551 /******************************************************************************* 552 ** 553 ** Function my_read 554 ** 555 ** Description This function read a packet from driver. 556 ** 557 ** Output Parameter None 558 ** 559 ** Returns number of bytes in the packet or error code 560 ** 561 *******************************************************************************/ 562 int my_read(int fd, uchar *pbuf, int len) 563 { 564 struct pollfd fds[2]; 565 566 int n = 0; 567 int ret = 0; 568 int count = 0; 569 int offset = 0; 570 clock_t t1, t2; 571 572 if (!isLowSpeedTransport && _timeout != POLL_TIMEOUT) 573 ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "%s: enter, pbuf=%lx, len = %d\n", __func__, (unsigned long)pbuf, len); 574 memset(pbuf, 0, len); 575 /* need to use select in order to avoid collistion between read and close on same fd */ 576 /* Initialize the input set */ 577 fds[0].fd = fd; 578 fds[0].events = POLLIN | POLLERR | POLLRDNORM; 579 fds[0].revents = 0; 580 581 create_signal_fds(&fds[1]); 582 fds[1].events = POLLIN | POLLERR | POLLRDNORM; 583 fds[1].revents = 0; 584 t1 = clock(); 585 n = poll(fds, 2, _timeout); 586 t2 = clock(); 587 perf_update(&perf_poll, t2 - t1, 0); 588 if (_poll_t0) 589 perf_update(&perf_poll_2_poll, t2 - _poll_t0, 0); 590 591 _poll_t0 = t2; 592 /* See if there was an error */ 593 if (n < 0) 594 { 595 ALOGD( "select failed; errno = %d\n", errno); 596 return -errno; 597 } 598 else if (n == 0) 599 return -EAGAIN; 600 601 if (is_signaled(&fds[1])) 602 { 603 ALOGD( "%s: exit signal received\n", __func__); 604 reset_signal(); 605 return -1; 606 } 607 if (!bSerialPortDevice || len < MIN_BUFSIZE) 608 count = len; 609 else 610 count = 1; 611 do { 612 t2 = clock(); 613 ret = read(fd, pbuf+offset, (size_t)count); 614 if (ret > 0) 615 perf_update(&perf_read, clock()-t2, ret); 616 617 if (ret <= 0 || !bSerialPortDevice || len < MIN_BUFSIZE) 618 break; 619 620 if (isLowSpeedTransport) 621 goto done; 622 623 if (offset == 0) 624 { 625 if (pbuf[offset] == HCIT_TYPE_NFC) 626 count = 3; 627 else if (pbuf[offset] == HCIT_TYPE_EVENT) 628 count = 2; 629 else 630 { 631 ALOGD( "%s: unknown HCIT type header pbuf[%d] = %x\n", __func__, offset, pbuf[offset]); 632 break; 633 } 634 offset = 1; 635 } 636 else if (offset == 1) 637 { 638 offset += count; 639 count = pbuf[offset-1]; 640 } 641 else 642 { 643 offset += ret; 644 count -= ret; 645 } 646 if (count == 0) 647 { 648 ret = offset; 649 break; 650 } 651 } while (count > 0); 652 #if VALIDATE_PACKET 653 /* 654 * vallidate the packet structure 655 */ 656 if (ret > 0 && len >= MIN_BUFSIZE) 657 { 658 count = 0; 659 while (count < ret) 660 { 661 if (pbuf[count] == HCIT_TYPE_NFC) 662 { 663 if (USERIAL_Debug_verbose) 664 scru_dump_hex(pbuf+count, NULL, pbuf[count+3]+4, 0, 0); 665 count += pbuf[count+3]+4; 666 } 667 else if (pbuf[count] == HCIT_TYPE_EVENT) 668 { 669 if (USERIAL_Debug_verbose) 670 scru_dump_hex(pbuf+count, NULL, pbuf[count+2]+3, 0, 0); 671 count += pbuf[count+2]+3; 672 } 673 else 674 { 675 ALOGD( "%s: unknown HCIT type header pbuf[%d] = %x, remain %d bytes\n", __func__, count, pbuf[count], ret-count); 676 scru_dump_hex(pbuf+count, NULL, ret - count, 0, 0); 677 break; 678 } 679 } /* while*/ 680 } 681 #endif 682 done: 683 if (!isLowSpeedTransport) 684 ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "%s: return %d(0x%x) bytes, errno=%d count=%d, n=%d, timeout=%d\n", __func__, 685 ret, ret, errno, count, n, _timeout); 686 if (_timeout == POLL_TIMEOUT) 687 _timeout = -1; 688 return ret; 689 } 690 extern BOOLEAN gki_chk_buf_damage(void *p_buf); 691 static int sRxLength = 0; 692 693 /******************************************************************************* 694 ** 695 ** Function userial_read_thread 696 ** 697 ** Description entry point of read thread. 698 ** 699 ** Output Parameter None 700 ** 701 ** Returns 0 702 ** 703 *******************************************************************************/ 704 UINT32 userial_read_thread(UINT32 arg) 705 { 706 int rx_length; 707 int error_count = 0; 708 int bErrorReported = 0; 709 int iMaxError = MAX_ERROR; 710 BT_HDR *p_buf = NULL; 711 712 worker_thread1 = pthread_self(); 713 714 ALOGD( "start userial_read_thread, id=%lx", worker_thread1); 715 _timeout = POLL_TIMEOUT; 716 717 for (;linux_cb.sock > 0;) 718 { 719 BT_HDR *p_buf; 720 UINT8 *current_packet; 721 722 if ((p_buf = (BT_HDR *) GKI_getpoolbuf( USERIAL_POOL_ID ) )!= NULL) 723 { 724 p_buf->offset = 0; 725 p_buf->layer_specific = 0; 726 727 current_packet = (UINT8 *) (p_buf + 1); 728 rx_length = my_read(linux_cb.sock, current_packet, READ_LIMIT); 729 730 } 731 else 732 { 733 ALOGE( "userial_read_thread(): unable to get buffer from GKI p_buf = %p poolid = %d\n", p_buf, USERIAL_POOL_ID); 734 rx_length = 0; /* paranoia setting */ 735 GKI_delay( NO_GKI_BUFFER_RECOVER_TIME ); 736 continue; 737 } 738 if (rx_length > 0) 739 { 740 bErrorReported = 0; 741 error_count = 0; 742 iMaxError = 3; 743 if (rx_length > sRxLength) 744 sRxLength = rx_length; 745 p_buf->len = (UINT16)rx_length; 746 GKI_enqueue(&Userial_in_q, p_buf); 747 if (!isLowSpeedTransport) 748 ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "userial_read_thread(): enqueued p_buf=%p, count=%d, length=%d\n", 749 p_buf, Userial_in_q.count, rx_length); 750 751 if (linux_cb.ser_cb != NULL) 752 (*linux_cb.ser_cb)(linux_cb.port, USERIAL_RX_READY_EVT, (tUSERIAL_EVT_DATA *)p_buf); 753 754 GKI_send_event(USERIAL_HAL_TASK, HCISU_EVT); 755 } 756 else 757 { 758 GKI_freebuf( p_buf ); 759 if (rx_length == -EAGAIN) 760 continue; 761 else if (rx_length == -1) 762 { 763 ALOGD( "userial_read_thread(): exiting\n"); 764 break; 765 } 766 else if (rx_length == 0 && !isWake(-1)) 767 continue; 768 ++error_count; 769 if (rx_length <= 0 && ((error_count > 0) && ((error_count % iMaxError) == 0))) 770 { 771 if (bErrorReported == 0) 772 { 773 ALOGE( "userial_read_thread(): my_read returned (%d) error count = %d, errno=%d return USERIAL_ERR_EVT\n", 774 rx_length, error_count, errno); 775 if (linux_cb.ser_cb != NULL) 776 (*linux_cb.ser_cb)(linux_cb.port, USERIAL_ERR_EVT, (tUSERIAL_EVT_DATA *)p_buf); 777 778 GKI_send_event(USERIAL_HAL_TASK, HCISU_EVT); 779 ++bErrorReported; 780 } 781 if (sRxLength == 0) 782 { 783 ALOGE( "userial_read_thread(): my_read returned (%d) error count = %d, errno=%d exit read thread\n", 784 rx_length, error_count, errno); 785 break; 786 } 787 } 788 } 789 } /* for */ 790 791 ALOGD( "userial_read_thread(): freeing GKI_buffers\n"); 792 while ((p_buf = (BT_HDR *) GKI_dequeue (&Userial_in_q)) != NULL) 793 { 794 GKI_freebuf(p_buf); 795 ALOGD("userial_read_thread: dequeued buffer from Userial_in_q\n"); 796 } 797 798 GKI_exit_task (GKI_get_taskid ()); 799 ALOGD( "USERIAL READ: EXITING TASK\n"); 800 801 return 0; 802 } 803 804 /******************************************************************************* 805 ** 806 ** Function userial_to_tcio_baud 807 ** 808 ** Description helper function converts USERIAL baud rates into TCIO conforming baud rates 809 ** 810 ** Output Parameter None 811 ** 812 ** Returns TRUE - success 813 ** FALSE - unsupported baud rate, default of 115200 is used 814 ** 815 *******************************************************************************/ 816 BOOLEAN userial_to_tcio_baud(UINT8 cfg_baud, UINT32 * baud) 817 { 818 if (cfg_baud == USERIAL_BAUD_600) 819 *baud = B600; 820 else if (cfg_baud == USERIAL_BAUD_1200) 821 *baud = B1200; 822 else if (cfg_baud == USERIAL_BAUD_9600) 823 *baud = B9600; 824 else if (cfg_baud == USERIAL_BAUD_19200) 825 *baud = B19200; 826 else if (cfg_baud == USERIAL_BAUD_57600) 827 *baud = B57600; 828 else if (cfg_baud == USERIAL_BAUD_115200) 829 *baud = B115200 | CBAUDEX; 830 else if (cfg_baud == USERIAL_BAUD_230400) 831 *baud = B230400; 832 else if (cfg_baud == USERIAL_BAUD_460800) 833 *baud = B460800; 834 else if (cfg_baud == USERIAL_BAUD_921600) 835 *baud = B921600; 836 else if (cfg_baud == USERIAL_BAUD_1M) 837 *baud = B1000000; 838 else if (cfg_baud == USERIAL_BAUD_2M) 839 *baud = B2000000; 840 else if (cfg_baud == USERIAL_BAUD_3M) 841 *baud = B3000000; 842 else if (cfg_baud == USERIAL_BAUD_4M) 843 *baud = B4000000; 844 else 845 { 846 ALOGE( "USERIAL_Open: unsupported baud idx %i", cfg_baud ); 847 *baud = B115200; 848 return FALSE; 849 } 850 return TRUE; 851 } 852 853 #if (USERIAL_USE_IO_BT_WAKE==TRUE) 854 /******************************************************************************* 855 ** 856 ** Function userial_io_init_bt_wake 857 ** 858 ** Description helper function to set the open state of the bt_wake if ioctl 859 ** is used. it should not hurt in the rfkill case but it might 860 ** be better to compile it out. 861 ** 862 ** Returns none 863 ** 864 *******************************************************************************/ 865 void userial_io_init_bt_wake( int fd, unsigned long * p_wake_state ) 866 { 867 /* assert BT_WAKE for ioctl. should NOT hurt on rfkill version */ 868 ioctl( fd, USERIAL_IO_BT_WAKE_ASSERT, NULL); 869 ioctl( fd, USERIAL_IO_BT_WAKE_GET_ST, p_wake_state ); 870 if ( *p_wake_state == 0) 871 ALOGI("\n***userial_io_init_bt_wake(): Ooops, asserted BT_WAKE signal, but still got BT_WAKE state == to %d\n", 872 *p_wake_state ); 873 874 *p_wake_state = 1; 875 } 876 #endif 877 878 /******************************************************************************* 879 ** 880 ** Function USERIAL_Open 881 ** 882 ** Description Open the indicated serial port with the given configuration 883 ** 884 ** Output Parameter None 885 ** 886 ** Returns Nothing 887 ** 888 *******************************************************************************/ 889 UDRV_API void USERIAL_Open(tUSERIAL_PORT port, tUSERIAL_OPEN_CFG *p_cfg, tUSERIAL_CBACK *p_cback) 890 { 891 UINT32 baud = 0; 892 UINT8 data_bits = 0; 893 UINT16 parity = 0; 894 UINT8 stop_bits = 0; 895 struct termios termios; 896 const char ttyusb[] = "/dev/ttyUSB"; 897 const char devtty[] = "/dev/tty"; 898 unsigned long num = 0; 899 int ret = 0; 900 901 ALOGI("USERIAL_Open(): enter"); 902 903 //if userial_close_thread() is waiting to run; let it go first; 904 //let it finish; then continue this function 905 while (TRUE) 906 { 907 pthread_mutex_lock(&close_thread_mutex); 908 if (is_close_thread_is_waiting) 909 { 910 pthread_mutex_unlock(&close_thread_mutex); 911 ALOGI("USERIAL_Open(): wait for close-thread"); 912 sleep (1); 913 } 914 else 915 break; 916 } 917 918 // restore default power off delay settings incase they were changed in userial_set_poweroff_delays() 919 gPrePowerOffDelay = 0; 920 gPostPowerOffDelay = 0; 921 922 if ( !GetStrValue ( NAME_TRANSPORT_DRIVER, userial_dev, sizeof ( userial_dev ) ) ) 923 strcpy ( userial_dev, default_transport ); 924 if ( GetNumValue ( NAME_UART_PORT, &num, sizeof ( num ) ) ) 925 uart_port = num; 926 if ( GetNumValue ( NAME_LOW_SPEED_TRANSPORT, &num, sizeof ( num ) ) ) 927 isLowSpeedTransport = num; 928 if ( GetNumValue ( NAME_NFC_WAKE_DELAY, &num, sizeof ( num ) ) ) 929 nfc_wake_delay = num; 930 if ( GetNumValue ( NAME_NFC_WRITE_DELAY, &num, sizeof ( num ) ) ) 931 nfc_write_delay = num; 932 if ( GetNumValue ( NAME_PERF_MEASURE_FREQ, &num, sizeof ( num ) ) ) 933 perf_log_every_count = num; 934 if ( GetNumValue ( NAME_POWER_ON_DELAY, &num, sizeof ( num ) ) ) 935 gPowerOnDelay = num; 936 if ( GetNumValue ( NAME_PRE_POWER_OFF_DELAY, &num, sizeof ( num ) ) ) 937 gPrePowerOffDelay = num; 938 if ( GetNumValue ( NAME_POST_POWER_OFF_DELAY, &num, sizeof ( num ) ) ) 939 gPostPowerOffDelay = num; 940 ALOGI("USERIAL_Open() device: %s port=%d, uart_port=%d WAKE_DELAY(%d) WRITE_DELAY(%d) POWER_ON_DELAY(%d) PRE_POWER_OFF_DELAY(%d) POST_POWER_OFF_DELAY(%d)", 941 (char*)userial_dev, port, uart_port, nfc_wake_delay, nfc_write_delay, gPowerOnDelay, gPrePowerOffDelay, 942 gPostPowerOffDelay); 943 GetStrValue( NAME_SNOOZE_MODE_CFG, (char*)&gSnoozeModeCfg, sizeof(gSnoozeModeCfg) ); 944 945 strcpy((char*)device_name, (char*)userial_dev); 946 sRxLength = 0; 947 _poll_t0 = 0; 948 949 if ((strncmp(userial_dev, ttyusb, sizeof(ttyusb)-1) == 0) || 950 (strncmp(userial_dev, devtty, sizeof(devtty)-1) == 0) ) 951 { 952 if (uart_port >= MAX_SERIAL_PORT) 953 { 954 ALOGD( "Port > MAX_SERIAL_PORT\n"); 955 goto done_open; 956 } 957 bSerialPortDevice = TRUE; 958 sprintf((char*)device_name, "%s%d", (char*)userial_dev, uart_port); 959 ALOGI("USERIAL_Open() using device_name: %s ", (char*)device_name); 960 if (!userial_to_tcio_baud(p_cfg->baud, &baud)) 961 goto done_open; 962 963 if (p_cfg->fmt & USERIAL_DATABITS_8) 964 data_bits = CS8; 965 else if (p_cfg->fmt & USERIAL_DATABITS_7) 966 data_bits = CS7; 967 else if (p_cfg->fmt & USERIAL_DATABITS_6) 968 data_bits = CS6; 969 else if (p_cfg->fmt & USERIAL_DATABITS_5) 970 data_bits = CS5; 971 else 972 goto done_open; 973 974 if (p_cfg->fmt & USERIAL_PARITY_NONE) 975 parity = 0; 976 else if (p_cfg->fmt & USERIAL_PARITY_EVEN) 977 parity = PARENB; 978 else if (p_cfg->fmt & USERIAL_PARITY_ODD) 979 parity = (PARENB | PARODD); 980 else 981 goto done_open; 982 983 if (p_cfg->fmt & USERIAL_STOPBITS_1) 984 stop_bits = 0; 985 else if (p_cfg->fmt & USERIAL_STOPBITS_2) 986 stop_bits = CSTOPB; 987 else 988 goto done_open; 989 } 990 else 991 strcpy((char*)device_name, (char*)userial_dev); 992 993 { 994 ALOGD("%s Opening %s\n", __FUNCTION__, device_name); 995 if ((linux_cb.sock = open((char*)device_name, O_RDWR | O_NOCTTY )) == -1) 996 { 997 ALOGI("%s unable to open %s", __FUNCTION__, device_name); 998 GKI_send_event(NFC_HAL_TASK, NFC_HAL_TASK_EVT_TERMINATE); 999 goto done_open; 1000 } 1001 ALOGD( "sock = %d\n", linux_cb.sock); 1002 if (GetStrValue ( NAME_POWER_CONTROL_DRIVER, power_control_dev, sizeof ( power_control_dev ) ) && 1003 power_control_dev[0] != '\0') 1004 { 1005 if (strcmp(power_control_dev, userial_dev) == 0) 1006 linux_cb.sock_power_control = linux_cb.sock; 1007 else 1008 { 1009 if ((linux_cb.sock_power_control = open((char*)power_control_dev, O_RDWR | O_NOCTTY )) == -1) 1010 { 1011 ALOGI("%s unable to open %s", __FUNCTION__, power_control_dev); 1012 } 1013 } 1014 } 1015 if ( bSerialPortDevice ) 1016 { 1017 tcflush(linux_cb.sock, TCIOFLUSH); 1018 tcgetattr(linux_cb.sock, &termios); 1019 1020 termios.c_cflag &= ~(CSIZE | PARENB); 1021 termios.c_cflag = CLOCAL|CREAD|data_bits|stop_bits|parity; 1022 if (!parity) 1023 termios.c_cflag |= IGNPAR; 1024 // termios.c_cflag &= ~CRTSCTS; 1025 termios.c_oflag = 0; 1026 termios.c_lflag &= ~(ECHO | ECHONL | ICANON | IEXTEN | ISIG); 1027 termios.c_iflag &= ~(BRKINT | ICRNL | INLCR | ISTRIP | IXON | IGNBRK | PARMRK | INPCK); 1028 termios.c_lflag = 0; 1029 termios.c_iflag = 0; 1030 cfsetospeed(&termios, baud); 1031 cfsetispeed(&termios, baud); 1032 1033 termios.c_cc[VTIME] = 0; 1034 termios.c_cc[VMIN] = 1; 1035 tcsetattr(linux_cb.sock, TCSANOW, &termios); 1036 1037 tcflush(linux_cb.sock, TCIOFLUSH); 1038 1039 #if (USERIAL_USE_IO_BT_WAKE==TRUE) 1040 userial_io_init_bt_wake( linux_cb.sock, &linux_cb.bt_wake_state ); 1041 #endif 1042 GKI_delay(gPowerOnDelay); 1043 } 1044 else 1045 { 1046 USERIAL_PowerupDevice(port); 1047 } 1048 } 1049 1050 linux_cb.ser_cb = p_cback; 1051 linux_cb.port = port; 1052 memcpy(&linux_cb.open_cfg, p_cfg, sizeof(tUSERIAL_OPEN_CFG)); 1053 GKI_create_task ((TASKPTR)userial_read_thread, USERIAL_HAL_TASK, (INT8*)"USERIAL_HAL_TASK", 0, 0, (pthread_cond_t*)NULL, NULL); 1054 1055 1056 #if (defined USERIAL_DEBUG) && (USERIAL_DEBUG == TRUE) 1057 ALOGD( "Leaving USERIAL_Open\n"); 1058 #endif 1059 1060 #if (SERIAL_AMBA == TRUE) 1061 /* give 20ms time for reader thread */ 1062 GKI_delay(20); 1063 #endif 1064 1065 done_open: 1066 pthread_mutex_unlock(&close_thread_mutex); 1067 ALOGI("USERIAL_Open(): exit"); 1068 return; 1069 } 1070 1071 /******************************************************************************* 1072 ** 1073 ** Function USERIAL_Read 1074 ** 1075 ** Description Read data from a serial port using byte buffers. 1076 ** 1077 ** Output Parameter None 1078 ** 1079 ** Returns Number of bytes actually read from the serial port and 1080 ** copied into p_data. This may be less than len. 1081 ** 1082 *******************************************************************************/ 1083 1084 static BT_HDR *pbuf_USERIAL_Read = NULL; 1085 1086 UDRV_API UINT16 USERIAL_Read(tUSERIAL_PORT port, UINT8 *p_data, UINT16 len) 1087 { 1088 UINT16 total_len = 0; 1089 UINT16 copy_len = 0; 1090 UINT8 * current_packet = NULL; 1091 1092 #if (defined USERIAL_DEBUG) && (USERIAL_DEBUG == TRUE) 1093 ALOGD( "%s ++ len=%d pbuf_USERIAL_Read=%p, p_data=%p\n", __func__, len, pbuf_USERIAL_Read, p_data); 1094 #endif 1095 do 1096 { 1097 if (pbuf_USERIAL_Read != NULL) 1098 { 1099 current_packet = ((UINT8 *)(pbuf_USERIAL_Read + 1)) + (pbuf_USERIAL_Read->offset); 1100 1101 if ((pbuf_USERIAL_Read->len) <= (len - total_len)) 1102 copy_len = pbuf_USERIAL_Read->len; 1103 else 1104 copy_len = (len - total_len); 1105 1106 memcpy((p_data + total_len), current_packet, copy_len); 1107 1108 total_len += copy_len; 1109 1110 pbuf_USERIAL_Read->offset += copy_len; 1111 pbuf_USERIAL_Read->len -= copy_len; 1112 1113 if (pbuf_USERIAL_Read->len == 0) 1114 { 1115 GKI_freebuf(pbuf_USERIAL_Read); 1116 pbuf_USERIAL_Read = NULL; 1117 } 1118 } 1119 1120 if (pbuf_USERIAL_Read == NULL && (total_len < len)) 1121 pbuf_USERIAL_Read = (BT_HDR *)GKI_dequeue(&Userial_in_q); 1122 1123 } while ((pbuf_USERIAL_Read != NULL) && (total_len < len)); 1124 1125 #if (defined USERIAL_DEBUG) && (USERIAL_DEBUG == TRUE) 1126 ALOGD( "%s: returned %d bytes", __func__, total_len); 1127 #endif 1128 return total_len; 1129 } 1130 1131 /******************************************************************************* 1132 ** 1133 ** Function USERIAL_Readbuf 1134 ** 1135 ** Description Read data from a serial port using GKI buffers. 1136 ** 1137 ** Output Parameter Pointer to a GKI buffer which contains the data. 1138 ** 1139 ** Returns Nothing 1140 ** 1141 ** Comments The caller of this function is responsible for freeing the 1142 ** GKI buffer when it is finished with the data. If there is 1143 ** no data to be read, the value of the returned pointer is 1144 ** NULL. 1145 ** 1146 *******************************************************************************/ 1147 1148 UDRV_API void USERIAL_ReadBuf(tUSERIAL_PORT port, BT_HDR **p_buf) 1149 { 1150 1151 } 1152 1153 /******************************************************************************* 1154 ** 1155 ** Function USERIAL_WriteBuf 1156 ** 1157 ** Description Write data to a serial port using a GKI buffer. 1158 ** 1159 ** Output Parameter None 1160 ** 1161 ** Returns TRUE if buffer accepted for write. 1162 ** FALSE if there is already a buffer being processed. 1163 ** 1164 ** Comments The buffer will be freed by the serial driver. Therefore, 1165 ** the application calling this function must not free the 1166 ** buffer. 1167 ** 1168 *******************************************************************************/ 1169 1170 UDRV_API BOOLEAN USERIAL_WriteBuf(tUSERIAL_PORT port, BT_HDR *p_buf) 1171 { 1172 return FALSE; 1173 } 1174 1175 /******************************************************************************* 1176 ** 1177 ** Function USERIAL_Write 1178 ** 1179 ** Description Write data to a serial port using a byte buffer. 1180 ** 1181 ** Output Parameter None 1182 ** 1183 ** Returns Number of bytes actually written to the transport. This 1184 ** may be less than len. 1185 ** 1186 *******************************************************************************/ 1187 UDRV_API UINT16 USERIAL_Write(tUSERIAL_PORT port, UINT8 *p_data, UINT16 len) 1188 { 1189 int ret = 0, total = 0; 1190 int i = 0; 1191 clock_t t; 1192 1193 /* Ensure we wake up the chip before writing to it */ 1194 if (!isWake(UPIO_ON)) 1195 UPIO_Set(UPIO_GENERAL, NFC_HAL_LP_NFC_WAKE_GPIO, UPIO_OFF); 1196 1197 ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "USERIAL_Write: (%d bytes)", len); 1198 pthread_mutex_lock(&close_thread_mutex); 1199 1200 doWriteDelay(); 1201 t = clock(); 1202 while (len != 0 && linux_cb.sock != -1) 1203 { 1204 ret = write(linux_cb.sock, p_data + total, len); 1205 if (ret < 0) 1206 { 1207 ALOGE("USERIAL_Write len = %d, ret = %d, errno = %d", len, ret, errno); 1208 break; 1209 } 1210 else 1211 { 1212 ALOGD_IF((appl_trace_level>=BT_TRACE_LEVEL_DEBUG), "USERIAL_Write len = %d, ret = %d", len, ret); 1213 } 1214 1215 total += ret; 1216 len -= ret; 1217 } 1218 perf_update(&perf_write, clock() - t, total); 1219 1220 /* register a delay for next write */ 1221 setWriteDelay(total * nfc_write_delay / 1000); 1222 1223 pthread_mutex_unlock(&close_thread_mutex); 1224 1225 return ((UINT16)total); 1226 } 1227 1228 /******************************************************************************* 1229 ** 1230 ** Function userial_change_rate 1231 ** 1232 ** Description change naud rate 1233 ** 1234 ** Output Parameter None 1235 ** 1236 ** Returns None 1237 ** 1238 *******************************************************************************/ 1239 void userial_change_rate(UINT8 baud) 1240 { 1241 #if defined (USING_BRCM_USB) && (USING_BRCM_USB == FALSE) 1242 struct termios termios; 1243 #endif 1244 #if (USERIAL_USE_TCIO_BAUD_CHANGE==TRUE) 1245 UINT32 tcio_baud; 1246 #endif 1247 1248 #if defined (USING_BRCM_USB) && (USING_BRCM_USB == FALSE) 1249 tcflush(linux_cb.sock, TCIOFLUSH); 1250 1251 tcgetattr(linux_cb.sock, &termios); 1252 1253 cfmakeraw(&termios); 1254 cfsetospeed(&termios, baud); 1255 cfsetispeed(&termios, baud); 1256 1257 termios.c_cflag |= (CLOCAL | CREAD | CRTSCTS | stop_bits); 1258 1259 tcsetattr(linux_cb.sock, TCSANOW, &termios); 1260 tcflush(linux_cb.sock, TCIOFLUSH); 1261 1262 #else 1263 #if (USERIAL_USE_TCIO_BAUD_CHANGE==FALSE) 1264 fprintf(stderr, "userial_change_rate: Closing UART Port\n"); 1265 ALOGI("userial_change_rate: Closing UART Port\n"); 1266 USERIAL_Close(linux_cb.port); 1267 1268 GKI_delay(50); 1269 1270 /* change baud rate in settings - leave everything else the same */ 1271 linux_cb.open_cfg.baud = baud; 1272 1273 ALOGD( "userial_change_rate: Attempting to reopen the UART Port at 0x%08x\n", (unsigned int)USERIAL_GetLineSpeed(baud)); 1274 ALOGI("userial_change_rate: Attempting to reopen the UART Port at %i\n", (unsigned int)USERIAL_GetLineSpeed(baud)); 1275 1276 USERIAL_Open(linux_cb.port, &linux_cb.open_cfg, linux_cb.ser_cb); 1277 #else /* amba uart */ 1278 fprintf(stderr, "userial_change_rate(): changeing baud rate via TCIO \n"); 1279 ALOGI( "userial_change_rate: (): changeing baud rate via TCIO \n"); 1280 /* change baud rate in settings - leave everything else the same */ 1281 linux_cb.open_cfg.baud = baud; 1282 if (!userial_to_tcio_baud(linux_cb.open_cfg.baud, &tcio_baud)) 1283 return; 1284 1285 tcflush(linux_cb.sock, TCIOFLUSH); 1286 1287 /* get current settings. they should be fine besides baud rate we want to change */ 1288 tcgetattr(linux_cb.sock, &termios); 1289 1290 /* set input/output baudrate */ 1291 cfsetospeed(&termios, tcio_baud); 1292 cfsetispeed(&termios, tcio_baud); 1293 tcsetattr(linux_cb.sock, TCSANOW, &termios); 1294 1295 tcflush(linux_cb.sock, TCIOFLUSH); 1296 #endif 1297 #endif /* USING_BRCM_USB */ 1298 } 1299 1300 /******************************************************************************* 1301 ** 1302 ** Function userial_close_port 1303 ** 1304 ** Description close the transport driver 1305 ** 1306 ** Returns Nothing 1307 ** 1308 *******************************************************************************/ 1309 void userial_close_port( void ) 1310 { 1311 USERIAL_Close(linux_cb.port); 1312 } 1313 1314 /******************************************************************************* 1315 ** 1316 ** Function USERIAL_Ioctl 1317 ** 1318 ** Description Perform an operation on a serial port. 1319 ** 1320 ** Output Parameter The p_data parameter is either an input or output depending 1321 ** on the operation. 1322 ** 1323 ** Returns Nothing 1324 ** 1325 *******************************************************************************/ 1326 1327 UDRV_API void USERIAL_Ioctl(tUSERIAL_PORT port, tUSERIAL_OP op, tUSERIAL_IOCTL_DATA *p_data) 1328 { 1329 #if (defined LINUX_OS) && (LINUX_OS == TRUE) 1330 USB_SCO_CONTROL ioctl_data; 1331 1332 /* just ignore port parameter as we are using USB in this case */ 1333 #endif 1334 1335 switch (op) 1336 { 1337 case USERIAL_OP_FLUSH: 1338 break; 1339 case USERIAL_OP_FLUSH_RX: 1340 break; 1341 case USERIAL_OP_FLUSH_TX: 1342 break; 1343 case USERIAL_OP_BAUD_WR: 1344 ALOGI( "USERIAL_Ioctl: Received USERIAL_OP_BAUD_WR on port: %d, ioctl baud%i\n", port, p_data->baud); 1345 linux_cb.port = port; 1346 userial_change_rate(p_data->baud); 1347 break; 1348 1349 default: 1350 break; 1351 } 1352 1353 return; 1354 } 1355 1356 1357 /******************************************************************************* 1358 ** 1359 ** Function USERIAL_SetPowerOffDelays 1360 ** 1361 ** Description Set power off delays used during USERIAL_Close(). The 1362 ** values in the conf. file setting override these if set. 1363 ** 1364 ** Returns None. 1365 ** 1366 *******************************************************************************/ 1367 UDRV_API void USERIAL_SetPowerOffDelays(int pre_poweroff_delay, int post_poweroff_delay) 1368 { 1369 gPrePowerOffDelay = pre_poweroff_delay; 1370 gPostPowerOffDelay = post_poweroff_delay; 1371 } 1372 1373 /******************************************************************************* 1374 ** 1375 ** Function USERIAL_Close 1376 ** 1377 ** Description Close a serial port 1378 ** 1379 ** Output Parameter None 1380 ** 1381 ** Returns Nothing 1382 ** 1383 *******************************************************************************/ 1384 UDRV_API void USERIAL_Close(tUSERIAL_PORT port) 1385 { 1386 pthread_attr_t attr; 1387 pthread_t close_thread; 1388 1389 ALOGD ("%s: enter", __FUNCTION__); 1390 // check to see if thread is already running 1391 if (pthread_mutex_trylock(&close_thread_mutex) == 0) 1392 { 1393 // mutex aquired so thread is not running 1394 is_close_thread_is_waiting = TRUE; 1395 pthread_mutex_unlock(&close_thread_mutex); 1396 1397 // close transport in a new thread so we don't block the caller 1398 // make thread detached, no other thread will join 1399 pthread_attr_init(&attr); 1400 pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED); 1401 pthread_create( &close_thread, &attr, (void *)userial_close_thread,(void*)port); 1402 pthread_attr_destroy(&attr); 1403 } 1404 else 1405 { 1406 // mutex not aquired to thread is already running 1407 ALOGD( "USERIAL_Close(): already closing \n"); 1408 } 1409 ALOGD ("%s: exit", __FUNCTION__); 1410 } 1411 1412 1413 /******************************************************************************* 1414 ** 1415 ** Function userial_close_thread 1416 ** 1417 ** Description Thread to close USERIAL 1418 ** 1419 ** Returns None. 1420 ** 1421 *******************************************************************************/ 1422 void userial_close_thread(UINT32 params) 1423 { 1424 tUSERIAL_PORT port = (tUSERIAL_PORT )params; 1425 BT_HDR *p_buf = NULL; 1426 int result; 1427 1428 ALOGD( "%s: closing transport (%d)\n", __FUNCTION__, linux_cb.sock); 1429 pthread_mutex_lock(&close_thread_mutex); 1430 is_close_thread_is_waiting = FALSE; 1431 1432 if (linux_cb.sock <= 0) 1433 { 1434 ALOGD( "%s: already closed (%d)\n", __FUNCTION__, linux_cb.sock); 1435 pthread_mutex_unlock(&close_thread_mutex); 1436 return; 1437 } 1438 1439 send_wakeup_signal(); 1440 result = pthread_join( worker_thread1, NULL ); 1441 if ( result < 0 ) 1442 ALOGE( "%s: pthread_join() FAILED: result: %d", __FUNCTION__, result ); 1443 else 1444 ALOGD( "%s: pthread_join() joined: result: %d", __FUNCTION__, result ); 1445 1446 if (linux_cb.sock_power_control > 0) 1447 { 1448 result = ioctl(linux_cb.sock_power_control, BCMNFC_WAKE_CTL, sleep_state()); 1449 ALOGD("%s: Delay %dms before turning off the chip", __FUNCTION__, gPrePowerOffDelay); 1450 GKI_delay(gPrePowerOffDelay); 1451 result = ioctl(linux_cb.sock_power_control, BCMNFC_POWER_CTL, 0); 1452 ALOGD("%s: Delay %dms after turning off the chip", __FUNCTION__, gPostPowerOffDelay); 1453 GKI_delay(gPostPowerOffDelay); 1454 } 1455 result = close(linux_cb.sock); 1456 if (result<0) 1457 ALOGD("%s: close return %d", __FUNCTION__, result); 1458 1459 if (linux_cb.sock_power_control > 0 && linux_cb.sock_power_control != linux_cb.sock) 1460 result = close(linux_cb.sock_power_control); 1461 if (result<0) 1462 ALOGD("%s: close return %d", __FUNCTION__, result); 1463 1464 linux_cb.sock_power_control = -1; 1465 linux_cb.sock = -1; 1466 1467 close_signal_fds(); 1468 pthread_mutex_unlock(&close_thread_mutex); 1469 ALOGD("%s: exiting", __FUNCTION__); 1470 } 1471 1472 /******************************************************************************* 1473 ** 1474 ** Function USERIAL_Feature 1475 ** 1476 ** Description Check whether a feature of the serial API is supported. 1477 ** 1478 ** Output Parameter None 1479 ** 1480 ** Returns TRUE if the feature is supported 1481 ** FALSE if the feature is not supported 1482 ** 1483 *******************************************************************************/ 1484 1485 UDRV_API BOOLEAN USERIAL_Feature(tUSERIAL_FEATURE feature) 1486 { 1487 switch (feature) 1488 { 1489 case USERIAL_FEAT_PORT_1: 1490 case USERIAL_FEAT_PORT_2: 1491 case USERIAL_FEAT_PORT_3: 1492 case USERIAL_FEAT_PORT_4: 1493 1494 case USERIAL_FEAT_BAUD_600: 1495 case USERIAL_FEAT_BAUD_1200: 1496 case USERIAL_FEAT_BAUD_9600: 1497 case USERIAL_FEAT_BAUD_19200: 1498 case USERIAL_FEAT_BAUD_57600: 1499 case USERIAL_FEAT_BAUD_115200: 1500 1501 case USERIAL_FEAT_STOPBITS_1: 1502 case USERIAL_FEAT_STOPBITS_2: 1503 1504 case USERIAL_FEAT_PARITY_NONE: 1505 case USERIAL_FEAT_PARITY_EVEN: 1506 case USERIAL_FEAT_PARITY_ODD: 1507 1508 case USERIAL_FEAT_DATABITS_5: 1509 case USERIAL_FEAT_DATABITS_6: 1510 case USERIAL_FEAT_DATABITS_7: 1511 case USERIAL_FEAT_DATABITS_8: 1512 1513 case USERIAL_FEAT_FC_HW: 1514 case USERIAL_FEAT_BUF_BYTE: 1515 1516 case USERIAL_FEAT_OP_FLUSH_RX: 1517 case USERIAL_FEAT_OP_FLUSH_TX: 1518 return TRUE; 1519 default: 1520 return FALSE; 1521 } 1522 1523 return FALSE; 1524 } 1525 1526 /***************************************************************************** 1527 ** 1528 ** Function UPIO_Set 1529 ** 1530 ** Description 1531 ** This function sets one or more GPIO devices to the given state. 1532 ** Multiple GPIOs of the same type can be masked together to set more 1533 ** than one GPIO. This function can only be used on types UPIO_LED and 1534 ** UPIO_GENERAL. 1535 ** 1536 ** Input Parameters: 1537 ** type The type of device. 1538 ** pio Indicates the particular GPIOs. 1539 ** state The desired state. 1540 ** 1541 ** Output Parameter: 1542 ** None. 1543 ** 1544 ** Returns: 1545 ** None. 1546 ** 1547 *****************************************************************************/ 1548 UDRV_API void UPIO_Set(tUPIO_TYPE type, tUPIO pio, tUPIO_STATE new_state) 1549 { 1550 int ret; 1551 if (type == UPIO_GENERAL) 1552 { 1553 if (pio == NFC_HAL_LP_NFC_WAKE_GPIO) 1554 { 1555 if (new_state == UPIO_ON || new_state == UPIO_OFF) 1556 { 1557 if (linux_cb.sock_power_control > 0) 1558 { 1559 ALOGD("%s: ioctl, state=%d", __func__, new_state); 1560 ret = ioctl(linux_cb.sock_power_control, BCMNFC_WAKE_CTL, new_state); 1561 if (isWake(new_state) && nfc_wake_delay > 0 && new_state != current_nfc_wake_state) 1562 { 1563 ALOGD("%s: ioctl, old state=%d, insert delay for %d ms", __func__, current_nfc_wake_state, nfc_wake_delay); 1564 setWriteDelay(nfc_wake_delay); 1565 } 1566 current_nfc_wake_state = new_state; 1567 } 1568 } 1569 } 1570 } 1571 } 1572 1573 /***************************************************************************** 1574 ** 1575 ** Function setReadPacketSize 1576 ** 1577 ** Description 1578 ** This function sets the packetSize to the driver. 1579 ** this enables faster read operation of NCI/HCI responses 1580 ** 1581 ** Input Parameters: 1582 ** len number of bytes to read per operation. 1583 ** 1584 ** Output Parameter: 1585 ** None. 1586 ** 1587 ** Returns: 1588 ** None. 1589 ** 1590 *****************************************************************************/ 1591 void setReadPacketSize(int len) 1592 { 1593 int ret; 1594 ALOGD("%s: ioctl, len=%d", __func__, len); 1595 ret = ioctl(linux_cb.sock, BCMNFC_READ_FULL_PACKET, len); 1596 } 1597 1598 1599 UDRV_API BOOLEAN USERIAL_IsClosed() 1600 { 1601 return (linux_cb.sock == -1) ? TRUE : FALSE; 1602 } 1603 1604 UDRV_API void USERIAL_PowerupDevice(tUSERIAL_PORT port) 1605 { 1606 int ret = -1; 1607 unsigned long num = 0; 1608 unsigned int resetSuccess = 0; 1609 unsigned int numTries = 0; 1610 unsigned char spi_negotiation[64]; 1611 int delay = gPowerOnDelay; 1612 ALOGD("%s: enter", __FUNCTION__); 1613 1614 if ( GetNumValue ( NAME_READ_MULTI_PACKETS, &num, sizeof ( num ) ) ) 1615 bcmi2cnfc_read_multi_packets = num; 1616 1617 if (bcmi2cnfc_read_multi_packets > 0) 1618 ioctl(linux_cb.sock, BCMNFC_READ_MULTI_PACKETS, bcmi2cnfc_read_multi_packets); 1619 1620 while (!resetSuccess && numTries < NUM_RESET_ATTEMPTS) { 1621 if (numTries++ > 0) { 1622 ALOGW("BCM2079x: retrying reset, attempt %d/%d", numTries, NUM_RESET_ATTEMPTS); 1623 } 1624 if (linux_cb.sock_power_control > 0) 1625 { 1626 current_nfc_wake_state = NFC_WAKE_ASSERTED_ON_POR; 1627 ioctl(linux_cb.sock_power_control, BCMNFC_WAKE_CTL, NFC_WAKE_ASSERTED_ON_POR); 1628 ioctl(linux_cb.sock_power_control, BCMNFC_POWER_CTL, 0); 1629 GKI_delay(10); 1630 ret = ioctl(linux_cb.sock_power_control, BCMNFC_POWER_CTL, 1); 1631 } 1632 1633 ret = GetStrValue ( NAME_SPI_NEGOTIATION, (char*)spi_negotiation, sizeof ( spi_negotiation ) ); 1634 if (ret > 0 && spi_negotiation[0] > 0 && spi_negotiation[0] < sizeof ( spi_negotiation ) - 1) 1635 { 1636 int len = spi_negotiation[0]; 1637 /* Wake control is not available: Start SPI negotiation*/ 1638 USERIAL_Write(port, &spi_negotiation[1], len); 1639 USERIAL_Read(port, spi_negotiation, sizeof ( spi_negotiation )); 1640 } 1641 1642 if ( GetNumValue ( NAME_CLIENT_ADDRESS, &num, sizeof ( num ) ) ) 1643 bcmi2cnfc_client_addr = num & 0xFF; 1644 if (bcmi2cnfc_client_addr != 0 && 1645 0x07 < bcmi2cnfc_client_addr && 1646 bcmi2cnfc_client_addr < 0x78) 1647 { 1648 /* Delay needed after turning on chip */ 1649 GKI_delay(delay); 1650 ALOGD( "Change client address to %x\n", bcmi2cnfc_client_addr); 1651 ret = ioctl(linux_cb.sock, BCMNFC_CHANGE_ADDR, bcmi2cnfc_client_addr); 1652 if (!ret) { 1653 resetSuccess = 1; 1654 linux_cb.client_device_address = bcmi2cnfc_client_addr; 1655 /* Delay long enough for address change */ 1656 delay = 200; 1657 } 1658 } else { 1659 resetSuccess = 1; 1660 } 1661 } 1662 1663 if (!resetSuccess) { 1664 ALOGE("BCM2079x: failed to initialize NFC controller"); 1665 } 1666 1667 GKI_delay(delay); 1668 ALOGD("%s: exit", __FUNCTION__); 1669 } 1670
