btuart.c revision 1.7.2.1
1 /* $NetBSD: btuart.c,v 1.7.2.1 2007/11/06 23:25:47 matt Exp $ */ 2 /* 3 * Copyright (c) 2006, 2007 KIYOHARA Takashi 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 17 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 18 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 19 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 20 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 22 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 23 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 24 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 25 * POSSIBILITY OF SUCH DAMAGE. 26 */ 27 28 #include <sys/cdefs.h> 29 __KERNEL_RCSID(0, "$NetBSD: btuart.c,v 1.7.2.1 2007/11/06 23:25:47 matt Exp $"); 30 31 #include <sys/types.h> 32 #include <sys/param.h> 33 #include <sys/device.h> 34 #include <sys/errno.h> 35 36 #include <sys/conf.h> 37 #include <sys/fcntl.h> 38 #include <sys/kauth.h> 39 #include <sys/kernel.h> 40 #include <sys/malloc.h> 41 #include <sys/mbuf.h> 42 #include <sys/proc.h> 43 #include <sys/syslimits.h> 44 #include <sys/systm.h> 45 #include <sys/tty.h> 46 47 #include <sys/bus.h> 48 #include <sys/intr.h> 49 50 #include <netbt/bluetooth.h> 51 #include <netbt/hci.h> 52 53 #include <dev/bluetooth/btuart.h> 54 #include <dev/firmload.h> 55 56 #include "ioconf.h" 57 58 #ifdef BTUART_DEBUG 59 int btuart_debug = 1; 60 #endif 61 62 struct btuart_softc; 63 struct bth4hci { 64 int type; 65 int init_baud; 66 #define FLOW_CTL 1 67 int flags; 68 int (*init)(struct btuart_softc *); 69 }; 70 71 struct btuart_softc { 72 device_t sc_dev; 73 74 struct tty *sc_tp; 75 struct hci_unit sc_unit; /* Bluetooth HCI Unit */ 76 77 struct bth4hci sc_bth4hci; 78 int sc_baud; 79 80 int sc_state; /* receive state */ 81 #define BTUART_RECV_PKT_TYPE 0 /* packet type */ 82 #define BTUART_RECV_ACL_HDR 1 /* acl header */ 83 #define BTUART_RECV_SCO_HDR 2 /* sco header */ 84 #define BTUART_RECV_EVENT_HDR 3 /* event header */ 85 #define BTUART_RECV_ACL_DATA 4 /* acl packet data */ 86 #define BTUART_RECV_SCO_DATA 5 /* sco packet data */ 87 #define BTUART_RECV_EVENT_DATA 6 /* event packet data */ 88 int sc_want; /* how much we want */ 89 struct mbuf *sc_rxp; /* incoming packet */ 90 struct mbuf *sc_txp; /* outgoing packet */ 91 92 void (*sc_input_acl)(struct hci_unit *, struct mbuf *); 93 void (*sc_input_sco)(struct hci_unit *, struct mbuf *); 94 void (*sc_input_event)(struct hci_unit *, struct mbuf *); 95 }; 96 97 void btuartattach(int); 98 static int btuart_match(device_t, struct cfdata *, void *); 99 static void btuart_attach(device_t, device_t, void *); 100 static int btuart_detach(device_t, int); 101 102 static int bth4_waitresp(struct btuart_softc *, struct mbuf **, uint16_t); 103 static int bth4_firmload(struct btuart_softc *, char *, 104 int (*)(struct btuart_softc *, int, char *)); 105 static int init_ericsson(struct btuart_softc *); 106 static int init_digi(struct btuart_softc *); 107 static int init_texas(struct btuart_softc *); 108 static int init_csr(struct btuart_softc *); 109 static int init_swave(struct btuart_softc *); 110 static int init_st(struct btuart_softc *); 111 static int firmload_stlc2500(struct btuart_softc *, int, char *); 112 static int init_stlc2500(struct btuart_softc *); 113 static int init_bcm2035(struct btuart_softc *); 114 static int bth4init(struct btuart_softc *); 115 static void bth4init_input(struct hci_unit *, struct mbuf *); 116 117 static int bth4open(dev_t, struct tty *); 118 static int bth4close(struct tty *, int); 119 static int bth4ioctl(struct tty *, u_long, void *, int, struct lwp *); 120 static int bth4input(int, struct tty *); 121 static int bth4start(struct tty *); 122 123 static int bth4_enable(struct hci_unit *); 124 static void bth4_disable(struct hci_unit *); 125 static void bth4_start(struct hci_unit *); 126 127 /* 128 * It doesn't need to be exported, as only btuartattach() uses it, 129 * but there's no "official" way to make it static. 130 */ 131 CFATTACH_DECL_NEW(btuart, sizeof(struct btuart_softc), 132 btuart_match, btuart_attach, btuart_detach, NULL); 133 134 static struct linesw bth4_disc = { 135 .l_name = "btuart", 136 .l_open = bth4open, 137 .l_close = bth4close, 138 .l_read = ttyerrio, 139 .l_write = ttyerrio, 140 .l_ioctl = bth4ioctl, 141 .l_rint = bth4input, 142 .l_start = bth4start, 143 .l_modem = ttymodem, 144 .l_poll = ttyerrpoll 145 }; 146 147 static struct bth4hci bth4hci[] = { 148 { BTUART_HCITYPE_ANY, B0, FLOW_CTL, NULL }, 149 { BTUART_HCITYPE_ERICSSON, B57600, FLOW_CTL, init_ericsson }, 150 { BTUART_HCITYPE_DIGI, B9600, FLOW_CTL, init_digi }, 151 { BTUART_HCITYPE_TEXAS, B115200, FLOW_CTL, init_texas }, 152 /* CSR Casira serial adapter or BrainBoxes serial dongle (BL642) */ 153 { BTUART_HCITYPE_CSR, B115200, FLOW_CTL, init_csr }, 154 /* Silicon Wave kits */ 155 { BTUART_HCITYPE_SWAVE, B115200, FLOW_CTL, init_swave }, 156 /* ST Microelectronics minikits based on STLC2410/STLC2415 */ 157 { BTUART_HCITYPE_ST, B57600, FLOW_CTL, init_st }, 158 /* ST Microelectronics minikits based on STLC2500 */ 159 { BTUART_HCITYPE_STLC2500, B115200, FLOW_CTL, init_stlc2500 }, 160 /* AmbiCom BT2000C Bluetooth PC/CF Card */ 161 { BTUART_HCITYPE_BT2000C, B57600, FLOW_CTL, init_csr }, 162 /* Broadcom BCM2035 */ 163 { BTUART_HCITYPE_BCM2035, B115200, 0, init_bcm2035 }, 164 165 { -1, B0, 0, NULL } 166 }; 167 168 169 /* ARGSUSED */ 170 void 171 btuartattach(int num __unused) 172 { 173 int error; 174 175 error = ttyldisc_attach(&bth4_disc); 176 if (error) { 177 aprint_error("%s: unable to register line discipline, " 178 "error = %d\n", btuart_cd.cd_name, error); 179 return; 180 } 181 182 error = config_cfattach_attach(btuart_cd.cd_name, &btuart_ca); 183 if (error) { 184 aprint_error("%s: unable to register cfattach, error = %d\n", 185 btuart_cd.cd_name, error); 186 config_cfdriver_detach(&btuart_cd); 187 (void) ttyldisc_detach(&bth4_disc); 188 } 189 } 190 191 /* 192 * Autoconf match routine. 193 * 194 * XXX: unused: config_attach_pseudo(9) does not call ca_match. 195 */ 196 /* ARGSUSED */ 197 static int 198 btuart_match(device_t self __unused, 199 struct cfdata *cfdata __unused, void *arg __unused) 200 { 201 202 /* pseudo-device; always present */ 203 return 1; 204 } 205 206 /* 207 * Autoconf attach routine. Called by config_attach_pseudo(9) when we 208 * open the line discipline. 209 */ 210 /* ARGSUSED */ 211 static void 212 btuart_attach(device_t parent __unused, 213 device_t self, void *aux __unused) 214 { 215 struct btuart_softc *sc = device_private(self); 216 int i; 217 218 sc->sc_dev = self; 219 220 aprint_normal("\n"); 221 aprint_naive("\n"); 222 223 sc->sc_input_acl = bth4init_input; 224 sc->sc_input_sco = bth4init_input; 225 sc->sc_input_event = bth4init_input; 226 227 /* Copy default type */ 228 for (i = 0; bth4hci[i].type != BTUART_HCITYPE_ANY; i++); 229 memcpy(&sc->sc_bth4hci, &bth4hci[i], sizeof(struct bth4hci)); 230 231 /* Attach Bluetooth unit */ 232 sc->sc_unit.hci_softc = sc; 233 sc->sc_unit.hci_devname = device_xname(self); 234 sc->sc_unit.hci_enable = bth4_enable; 235 sc->sc_unit.hci_disable = bth4_disable; 236 sc->sc_unit.hci_start_cmd = bth4_start; 237 sc->sc_unit.hci_start_acl = bth4_start; 238 sc->sc_unit.hci_start_sco = bth4_start; 239 sc->sc_unit.hci_ipl = makeiplcookie(IPL_TTY); 240 hci_attach(&sc->sc_unit); 241 } 242 243 /* 244 * Autoconf detach routine. Called when we close the line discipline. 245 */ 246 static int 247 btuart_detach(device_t self, int flags __unused) 248 { 249 struct btuart_softc *sc = device_private(self); 250 251 hci_detach(&sc->sc_unit); 252 253 return 0; 254 } 255 256 257 static int 258 bth4_waitresp(struct btuart_softc *sc, struct mbuf **mp, uint16_t opcode) 259 { 260 struct hci_unit *unit = &sc->sc_unit; 261 hci_event_hdr_t *e; 262 int status = 0, rv; 263 264 *mp = NULL; 265 while (1 /* CONSTCOND */) { 266 if ((rv = 267 tsleep(&unit->hci_eventq, PCATCH, "bth4init", 0)) != 0) 268 return rv; 269 270 MBUFQ_DEQUEUE(&unit->hci_eventq, *mp); 271 unit->hci_eventqlen--; 272 KASSERT(*mp != NULL); 273 274 e = mtod(*mp, hci_event_hdr_t *); 275 if (e->event == HCI_EVENT_COMMAND_COMPL) { 276 hci_command_compl_ep *ep; 277 278 ep = (hci_command_compl_ep *)(e + 1); 279 if (ep->opcode == opcode) { 280 status = *(char *)(ep + 1); 281 break; 282 } 283 } else if (e->event == HCI_EVENT_COMMAND_STATUS) { 284 hci_command_status_ep *ep; 285 286 ep = (hci_command_status_ep *)(e + 1); 287 if (ep->opcode == opcode) { 288 status = ep->status; 289 break; 290 } 291 } else if (e->event == HCI_EVENT_VENDOR) 292 break; 293 } 294 295 return status; 296 } 297 298 static int 299 bth4_firmload(struct btuart_softc *sc, char *filename, 300 int (*func_firmload)(struct btuart_softc *, int, char *)) 301 { 302 const cfdriver_t cd = device_cfdriver(sc->sc_dev); 303 firmware_handle_t fh = NULL; 304 int error, size; 305 char *buf; 306 307 if ((error = firmware_open(cd->cd_name, filename, &fh)) != 0) { 308 printf("firmware_open failed\n"); 309 return error; 310 } 311 size = firmware_get_size(fh); 312 if ((buf = firmware_malloc(size)) != NULL) { 313 printf("firmware_malloc failed\n"); 314 firmware_close(fh); 315 return ENOMEM; 316 } 317 318 if ((error = firmware_read(fh, 0, buf, size)) != 0) 319 printf("firmware_read failed\n"); 320 if (error == 0) 321 error = (*func_firmload)(sc, size, buf); 322 323 firmware_close(fh); 324 firmware_free(buf, size); 325 326 return error; 327 } 328 329 /* 330 * LSI initialize functions. 331 */ 332 static int 333 init_ericsson(struct btuart_softc *sc) 334 { 335 struct mbuf *m; 336 struct hci_unit *unit = &sc->sc_unit; 337 hci_cmd_hdr_t *p; 338 int i, error = 0; 339 const uint16_t opcode = htole16(HCI_CMD_ERICSSON_SET_UART_BAUD_RATE); 340 static struct { 341 int baud; 342 uint8_t param; 343 } ericsson_baudtbl[] = { 344 { B460800, 0x00 }, 345 { B230400, 0x01 }, 346 { B115200, 0x02 }, 347 { B57600, 0x03 }, 348 { B28800, 0x04 }, 349 { B14400, 0x05 }, 350 { B7200, 0x06 }, 351 #if defined(B3600) 352 { B3600, 0x07 }, 353 #endif 354 { B1800, 0x08 }, 355 #if defined(B900) 356 { B900, 0x09 }, 357 #endif 358 #if defined(B153600) 359 { B153600, 0x10 }, 360 #endif 361 { B76800, 0x11 }, 362 { B38400, 0x12 }, 363 { B19200, 0x13 }, 364 { B9600, 0x14 }, 365 { B4800, 0x15 }, 366 { B2400, 0x16 }, 367 { B1200, 0x17 }, 368 { B600, 0x18 }, 369 { B300, 0x19 }, 370 { B921600, 0x20 }, 371 { B0, 0xff } 372 }; 373 374 for (i = 0; ericsson_baudtbl[i].baud != sc->sc_baud; i++) 375 if (ericsson_baudtbl[i].baud == B0) 376 return EINVAL; 377 378 m = m_gethdr(M_WAIT, MT_DATA); 379 p = mtod(m, hci_cmd_hdr_t *); 380 p->type = HCI_CMD_PKT; 381 p->opcode = opcode; 382 p->length = sizeof(ericsson_baudtbl[0].param); 383 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 384 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, 385 &ericsson_baudtbl[i].param); 386 387 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 388 bth4_start(unit); 389 390 #if 0 391 error = bth4_waitresp(sc, &m, opcode); 392 if (m != NULL) { 393 if (error != 0) { 394 printf("%s: Ericsson_Set_UART_Baud_Rate failed:" 395 " Status 0x%02x\n", device_xname(sc->sc_dev), error); 396 error = EFAULT; 397 } 398 m_freem(m); 399 } 400 #else 401 /* 402 * XXXX: We cannot correctly receive this response perhaps. Wait 403 * until the transmission of the data of 5 bytes * 10 bit is completed. 404 * 1000000usec * 10bit * 5byte / baud 405 */ 406 delay(50000000 / sc->sc_bth4hci.init_baud); 407 #endif 408 return error; 409 } 410 411 static int 412 init_digi(struct btuart_softc *sc) 413 { 414 struct mbuf *m; 415 struct hci_unit *unit = &sc->sc_unit; 416 hci_cmd_hdr_t *p; 417 uint8_t param; 418 419 /* XXXX */ 420 switch (sc->sc_baud) { 421 case B57600: 422 param = 0x08; 423 break; 424 425 case B115200: 426 param = 0x09; 427 break; 428 429 default: 430 return EINVAL; 431 } 432 433 m = m_gethdr(M_WAIT, MT_DATA); 434 p = mtod(m, hci_cmd_hdr_t *); 435 p->type = HCI_CMD_PKT; 436 #define HCI_CMD_DIGIANSWER_SET_UART_BAUD_RATE 0xfc07 /* XXXX */ 437 p->opcode = htole16(HCI_CMD_DIGIANSWER_SET_UART_BAUD_RATE); 438 p->length = sizeof(param); 439 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 440 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, ¶m); 441 442 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 443 bth4_start(unit); 444 445 /* 446 * XXXX 447 * Wait until the transmission of the data of 5 bytes * 10 bit is 448 * completed. 449 * 1000000usec * 10bit * 5byte / baud 450 */ 451 delay(50000000 / sc->sc_bth4hci.init_baud); 452 return 0; 453 } 454 455 static int 456 init_texas(struct btuart_softc *sc) 457 { 458 459 /* XXXX: Should we obtain the version of LMP? */ 460 return 0; 461 } 462 463 static int 464 init_csr(struct btuart_softc *sc) 465 { 466 struct mbuf *m; 467 struct hci_unit *unit = &sc->sc_unit; 468 hci_cmd_hdr_t *p; 469 int error; 470 const uint16_t opcode = htole16(HCI_CMD_CSR_EXTN); 471 struct { 472 uint8_t last :1; 473 uint8_t first :1; 474 #define CSR_BCCMD_CHANID_BCCMD 2 475 #define CSR_BCCMD_CHANID_HQ 3 476 #define CSR_BCCMD_CHANID_DEVMGRLIB 4 477 #define CSR_BCCMD_CHANID_L2CAPLIB 8 478 #define CSR_BCCMD_CHANID_RFCOMMLIB 9 479 #define CSR_BCCMD_CHANID_SDPLIB 10 480 #define CSR_BCCMD_CHANID_DFU 12 481 #define CSR_BCCMD_CHANID_VM 13 482 #define CSR_BCCMD_CHANID_LMDEBUG 20 483 uint8_t chanid :6; 484 485 struct { 486 #define CSR_BCCMD_MESSAGE_TYPE_GETREQ 0x0000 487 #define CSR_BCCMD_MESSAGE_TYPE_GETRESP 0x0001 488 #define CSR_BCCMD_MESSAGE_TYPE_SETREQ 0x0002 489 uint16_t type; 490 uint16_t length; 491 uint16_t seqno; 492 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART 0x6802 493 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART_STOPB 0x2000 494 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART_PARENB 0x4000 495 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART_PARODD 0x8000 496 uint16_t varid; 497 #define CSR_BCCMD_MESSAGE_STATUS_OK 0x0000 498 #define CSR_BCCMD_MESSAGE_STATUS_NO_SUCH_VARID 0x0001 499 #define CSR_BCCMD_MESSAGE_STATUS_TOO_BIG 0x0002 500 #define CSR_BCCMD_MESSAGE_STATUS_NO_VALUE 0x0003 501 #define CSR_BCCMD_MESSAGE_STATUS_BAD_REQ 0x0004 502 #define CSR_BCCMD_MESSAGE_STATUS_NO_ACCESS 0x0005 503 #define CSR_BCCMD_MESSAGE_STATUS_READ_ONLY 0x0006 504 #define CSR_BCCMD_MESSAGE_STATUS_WRITE_ONLY 0x0007 505 #define CSR_BCCMD_MESSAGE_STATUS_ERROR 0x0008 506 #define CSR_BCCMD_MESSAGE_STATUS_PERMISION_DENIED 0x0009 507 uint16_t status; 508 uint16_t payload[4]; 509 } message; 510 } bccmd; 511 512 m = m_gethdr(M_WAIT, MT_DATA); 513 p = mtod(m, hci_cmd_hdr_t *); 514 p->type = HCI_CMD_PKT; 515 p->opcode = opcode; 516 p->length = sizeof(bccmd); 517 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 518 519 /* setup BCSP command packet */ 520 bccmd.last = 1; 521 bccmd.first = 1; 522 bccmd.chanid = CSR_BCCMD_CHANID_BCCMD; 523 bccmd.message.type = htole16(CSR_BCCMD_MESSAGE_TYPE_SETREQ); 524 bccmd.message.length = htole16(sizeof(bccmd.message) >> 1); 525 bccmd.message.seqno = htole16(0); 526 bccmd.message.varid = htole16(CSR_BCCMD_MESSAGE_VARID_CONFIG_UART); 527 bccmd.message.status = htole16(CSR_BCCMD_MESSAGE_STATUS_OK); 528 memset(bccmd.message.payload, 0, sizeof(bccmd.message.payload)); 529 530 /* Value = (baud rate / 244.140625) | no parity | 1 stop bit. */ 531 bccmd.message.payload[0] = htole16((sc->sc_baud * 64 + 7812) / 15625); 532 533 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, &bccmd); 534 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 535 bth4_start(unit); 536 537 error = bth4_waitresp(sc, &m, opcode); 538 if (m != NULL) { 539 /* 540 * XXXX: 541 * We will have to check the HCI_EVENT_VENDOR packet. For 542 * instance, it might be a different HCI_EVENT_VENDOR packet. 543 */ 544 if (error != 0) { 545 printf("%s: CSR set UART speed failed: Status 0x%02x\n", 546 device_xname(sc->sc_dev), error); 547 error = EFAULT; 548 } 549 m_freem(m); 550 } 551 552 return error; 553 } 554 555 static int 556 init_swave(struct btuart_softc *sc) 557 { 558 struct mbuf *m; 559 struct hci_unit *unit = &sc->sc_unit; 560 hci_cmd_hdr_t *p; 561 hci_event_hdr_t *e; 562 int i, error; 563 #define HCI_CMD_SWAVE_SET_UART_BAUD_RATE 0xfc0b /* XXXX */ 564 const uint16_t opcode = htole16(HCI_CMD_SWAVE_SET_UART_BAUD_RATE); 565 char param[6], *resp; 566 static struct { /* XXXX */ 567 int baud; 568 uint8_t param; 569 } swave_baudtbl[] = { 570 { B19200, 0x03 }, 571 { B38400, 0x02 }, 572 { B57600, 0x01 }, 573 { B115200, 0x00 }, 574 { B0, 0xff } 575 }; 576 577 for (i = 0; swave_baudtbl[i].baud != sc->sc_baud; i++) 578 if (swave_baudtbl[i].baud == B0) 579 return EINVAL; 580 581 m = m_gethdr(M_WAIT, MT_DATA); 582 /* first send 'param access set' command. */ 583 p = mtod(m, hci_cmd_hdr_t *); 584 p->type = HCI_CMD_PKT; 585 p->opcode = opcode; 586 p->length = sizeof(param); 587 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 588 589 /* XXXX */ 590 param[0] = 0x01; /* param sub command */ 591 param[1] = 0x11; /* HCI Tranport Params */ 592 param[2] = 0x03; /* length of the parameter following */ 593 param[3] = 0x01; /* HCI Transport flow control enable */ 594 param[4] = 0x01; /* HCI Transport Type = UART */ 595 param[5] = swave_baudtbl[i].param; 596 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, ¶m); 597 598 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 599 bth4_start(unit); 600 601 while(1 /* CONSTCOND */) { 602 error = bth4_waitresp(sc, &m, opcode); 603 if (error != 0) { 604 if (m != NULL) 605 m_freem(m); 606 printf("%s: swave set baud rate command failed:" 607 " error 0x%02x\n", device_xname(sc->sc_dev), error); 608 return error; 609 } 610 if (m != NULL) { 611 e = mtod(m, hci_event_hdr_t *); 612 resp = (char *)(e + 1); 613 if (e->length == 7 && *resp == 0xb && 614 memcmp(resp + 1, param, sizeof(param)) == 0) 615 break; 616 m_freem(m); 617 } 618 } 619 620 /* send 'reset' command consecutively. */ 621 p = mtod(m, hci_cmd_hdr_t *); 622 p->type = HCI_CMD_PKT; 623 p->opcode = htole16(HCI_CMD_RESET); 624 p->length = 0; 625 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 626 627 /* 628 * XXXX 629 * Wait until the transmission of the data of 4 bytes * 10 bit is 630 * completed. 631 * 1000000usec * 10bit * 4byte / baud 632 */ 633 delay(40000000 / sc->sc_bth4hci.init_baud); 634 return 0; 635 } 636 637 static int 638 init_st(struct btuart_softc *sc) 639 { 640 struct mbuf *m; 641 struct hci_unit *unit = &sc->sc_unit; 642 hci_cmd_hdr_t *p; 643 int i; 644 static struct { /* XXXX */ 645 int baud; 646 uint8_t param; 647 } st_baudtbl[] = { 648 { B9600, 0x09 }, 649 { B19200, 0x0b }, 650 { B38400, 0x0d }, 651 { B57600, 0x0e }, 652 { B115200, 0x10 }, 653 { B230400, 0x12 }, 654 { B460800, 0x13 }, 655 { B921600, 0x14 }, 656 { B0, 0xff } 657 }; 658 659 for (i = 0; st_baudtbl[i].baud != sc->sc_baud; i++) 660 if (st_baudtbl[i].baud == B0) 661 return EINVAL; 662 663 m = m_gethdr(M_WAIT, MT_DATA); 664 p = mtod(m, hci_cmd_hdr_t *); 665 p->type = HCI_CMD_PKT; 666 #define HCI_CMD_ST_SET_UART_BAUD_RATE 0xfc46 /* XXXX */ 667 p->opcode = htole16(HCI_CMD_ST_SET_UART_BAUD_RATE); 668 p->length = sizeof(st_baudtbl[0].param); 669 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 670 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, &st_baudtbl[i].param); 671 672 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 673 bth4_start(unit); 674 675 /* 676 * XXXX 677 * Wait until the transmission of the data of 5 bytes * 10 bit is 678 * completed. 679 * 1000000usec * 10bit * 5byte / baud 680 */ 681 delay(50000000 / sc->sc_bth4hci.init_baud); 682 return 0; 683 } 684 685 static int 686 firmload_stlc2500(struct btuart_softc *sc, int size, char *buf) 687 { 688 struct hci_unit *unit = &sc->sc_unit; 689 struct mbuf *m; 690 hci_cmd_hdr_t *p; 691 int error, offset, n; 692 uint16_t opcode = htole16(0xfc2e); /* XXXX */ 693 uint8_t seq; 694 695 m = m_gethdr(M_WAIT, MT_DATA); 696 seq = 0; 697 offset = 0; 698 error = 0; 699 while (offset < size) { 700 n = size - offset < 254 ? size - offset : 254; 701 702 p = mtod(m, hci_cmd_hdr_t *); 703 p->type = HCI_CMD_PKT; 704 p->opcode = opcode; 705 p->length = n; 706 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 707 *(char *)(p + 1) = seq; 708 m_copyback(m, 709 sizeof(hci_cmd_hdr_t) + 1, p->length, buf + offset); 710 711 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 712 bth4_start(unit); 713 714 error = bth4_waitresp(sc, &m, opcode); 715 if (m != NULL) { 716 if (error != 0) { 717 printf("%s: stlc2500 firmware load failed:" 718 " Status 0x%02x\n", 719 device_xname(sc->sc_dev), error); 720 error = EFAULT; 721 break; 722 } 723 } 724 725 seq++; 726 offset += n; 727 } 728 m_freem(m); 729 730 return error; 731 } 732 733 static int 734 init_stlc2500(struct btuart_softc *sc) 735 { 736 struct mbuf *m; 737 struct hci_unit *unit = &sc->sc_unit; 738 hci_cmd_hdr_t *p; 739 hci_event_hdr_t *e; 740 hci_read_local_ver_rp *lv; 741 int error, revision, i; 742 uint16_t opcode; 743 char filename[NAME_MAX], param[8]; 744 static const char filenametmpl[] = "STLC2500_R%d_%02d%s"; 745 const char *suffix[] = { ".ptc", ".ssf", NULL }; 746 747 m = m_gethdr(M_WAIT, MT_DATA); 748 p = mtod(m, hci_cmd_hdr_t *); 749 opcode = htole16(HCI_CMD_READ_LOCAL_VER); 750 p->type = HCI_CMD_PKT; 751 p->opcode = opcode; 752 p->length = 0; 753 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 754 755 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 756 bth4_start(unit); 757 758 error = bth4_waitresp(sc, &m, opcode); 759 if (m != NULL) { 760 if (error != 0) { 761 printf("%s: HCI_Read_Local_Version_Information failed:" 762 " Status 0x%02x\n", device_xname(sc->sc_dev), error); 763 error = EFAULT; 764 m_freem(m); 765 } 766 } 767 if (error != 0) 768 return error; 769 770 e = mtod(m, hci_event_hdr_t *); 771 lv = (hci_read_local_ver_rp *)(e + 1); 772 revision = le16toh(lv->hci_revision); 773 opcode = htole16(HCI_CMD_RESET); 774 for (i = 0; suffix[i] != NULL; i++) { 775 /* send firmware */ 776 snprintf(filename, sizeof(filename), filenametmpl, 777 (uint8_t)(revision >> 8), (uint8_t)revision, suffix[i]); 778 bth4_firmload(sc, filename, firmload_stlc2500); 779 780 p = mtod(m, hci_cmd_hdr_t *); 781 p->type = HCI_CMD_PKT; 782 p->opcode = opcode; 783 p->length = 0; 784 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 785 786 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 787 bth4_start(unit); 788 789 error = bth4_waitresp(sc, &m, opcode); 790 if (m != NULL) { 791 if (error != 0) { 792 printf("%s: HCI_Reset (%d) failed:" 793 " Status 0x%02x\n", 794 device_xname(sc->sc_dev), i, error); 795 error = EFAULT; 796 m_freem(m); 797 } 798 } 799 if (error != 0) 800 return error; 801 } 802 803 /* XXXX: We will obtain the character string. But I don't know... */ 804 p = mtod(m, hci_cmd_hdr_t *); 805 opcode = htole16(0xfc0f); /* XXXXX ?? */ 806 p->type = HCI_CMD_PKT; 807 p->opcode = opcode; 808 p->length = 0; 809 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 810 811 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 812 bth4_start(unit); 813 814 error = bth4_waitresp(sc, &m, opcode); 815 if (m != NULL) { 816 if (error != 0) { 817 printf("%s: failed: opcode 0xfc0f Status 0x%02x\n", 818 device_xname(sc->sc_dev), error); 819 error = EFAULT; 820 m_freem(m); 821 } 822 } 823 if (error != 0) 824 return error; 825 /* 826 * XXXX: 827 * We do not know the beginning point of this character string. 828 * Because it doesn't know the event of this packet. 829 * 830 * printf("%s: %s\n", device_xname(sc->sc_dev), ???); 831 */ 832 833 p = mtod(m, hci_cmd_hdr_t *); 834 opcode = htole16(0xfc22); /* XXXXX ?? */ 835 p->type = HCI_CMD_PKT; 836 p->opcode = opcode; 837 p->length = sizeof(param); 838 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 839 840 /* XXXX */ 841 param[0] = 0xfe; 842 param[1] = 0x06; 843 param[2] = 0xba; 844 param[3] = 0xab; 845 param[4] = 0x00; 846 param[5] = 0xe1; 847 param[6] = 0x80; 848 param[7] = 0x00; 849 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, param); 850 851 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 852 bth4_start(unit); 853 854 error = bth4_waitresp(sc, &m, opcode); 855 if (m != NULL) { 856 if (error != 0) { 857 printf("%s: failed: opcode 0xfc0f Status 0x%02x\n", 858 device_xname(sc->sc_dev), error); 859 error = EFAULT; 860 m_freem(m); 861 } 862 } 863 if (error != 0) 864 return error; 865 866 opcode = htole16(HCI_CMD_RESET); 867 p = mtod(m, hci_cmd_hdr_t *); 868 p->type = HCI_CMD_PKT; 869 p->opcode = opcode; 870 p->length = 0; 871 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 872 873 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 874 bth4_start(unit); 875 876 error = bth4_waitresp(sc, &m, opcode); 877 if (m != NULL) { 878 if (error != 0) { 879 printf("%s: HCI_Reset failed: Status 0x%02x\n", 880 device_xname(sc->sc_dev), error); 881 error = EFAULT; 882 m_freem(m); 883 } 884 } 885 886 return error; 887 } 888 889 static int 890 init_bcm2035(struct btuart_softc *sc) 891 { 892 struct mbuf *m; 893 struct hci_unit *unit = &sc->sc_unit; 894 hci_cmd_hdr_t *p; 895 int i, error; 896 #define HCI_CMD_BCM2035_SET_UART_BAUD_RATE 0xfc18 /* XXXX */ 897 const uint16_t opcode = htole16(HCI_CMD_BCM2035_SET_UART_BAUD_RATE); 898 static struct { /* XXXX */ 899 int baud; 900 uint16_t param; 901 } bcm2035_baudtbl[] = { 902 { B57600, 0xe600 }, 903 { B230400, 0xfa22 }, 904 { B460800, 0xfd11 }, 905 { B921600, 0xff65 }, 906 { B0, 0xffff } 907 }; 908 909 for (i = 0; bcm2035_baudtbl[i].baud != sc->sc_baud; i++) 910 if (bcm2035_baudtbl[i].baud == -1) 911 return EINVAL; 912 913 m = m_gethdr(M_WAIT, MT_DATA); 914 915 /* 916 * XXXX: Should we send some commands? 917 * HCI_CMD_RESET and HCI_CMD_READ_LOCAL_VER and 918 * HCI_CMD_READ_LOCAL_COMMANDS 919 */ 920 921 p = mtod(m, hci_cmd_hdr_t *); 922 p->type = HCI_CMD_PKT; 923 p->opcode = opcode; 924 p->length = sizeof(bcm2035_baudtbl[0].param); 925 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 926 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, 927 &bcm2035_baudtbl[i].param); 928 929 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 930 bth4_start(unit); 931 932 error = bth4_waitresp(sc, &m, opcode); 933 if (m != NULL) { 934 if (error != 0) { 935 printf("%s: bcm2035 set baud rate failed:" 936 " Status 0x%02x\n", device_xname(sc->sc_dev), error); 937 error = EFAULT; 938 } 939 m_freem(m); 940 } 941 942 return error; 943 } 944 945 static int 946 bth4init(struct btuart_softc *sc) 947 { 948 struct tty *tp = sc->sc_tp; 949 struct termios t; 950 int error = 0, s; 951 952 sc->sc_baud = tp->t_ospeed; 953 t.c_cflag = tp->t_cflag; 954 t.c_ispeed = 0; 955 t.c_ospeed = tp->t_ospeed; 956 if ((tp->t_cflag & CRTSCTS) && !(sc->sc_bth4hci.flags & FLOW_CTL)) 957 t.c_cflag &= ~CRTSCTS; 958 if (sc->sc_bth4hci.init_baud != 0 && 959 tp->t_ospeed != sc->sc_bth4hci.init_baud) 960 t.c_ospeed = sc->sc_bth4hci.init_baud; 961 if (t.c_ospeed != tp->t_ospeed || t.c_cflag != tp->t_cflag) 962 error = (*tp->t_param)(tp, &t); 963 964 if (error == 0 && sc->sc_bth4hci.init != NULL) 965 error = (*sc->sc_bth4hci.init)(sc); 966 967 s = splserial(); 968 sc->sc_input_acl = hci_input_acl; 969 sc->sc_input_sco = hci_input_sco; 970 sc->sc_input_event = hci_input_event; 971 splx(s); 972 973 if (sc->sc_bth4hci.init_baud != 0 && 974 sc->sc_bth4hci.init_baud != sc->sc_baud) { 975 t.c_ospeed = sc->sc_baud; 976 t.c_cflag = tp->t_cflag; 977 error = (*tp->t_param)(tp, &t); 978 } 979 980 return error; 981 } 982 983 static void 984 bth4init_input(struct hci_unit *unit, struct mbuf *m) 985 { 986 int i; 987 uint8_t *rptr = mtod(m, uint8_t *); 988 const char *pktstr = NULL; 989 990 switch (*rptr) { 991 case HCI_ACL_DATA_PKT: 992 pktstr = "acl data"; 993 break; 994 995 case HCI_SCO_DATA_PKT: 996 pktstr = "sco data"; 997 break; 998 999 case HCI_EVENT_PKT: 1000 break; 1001 1002 default: 1003 pktstr = "unknown"; 1004 break; 1005 } 1006 if (pktstr != NULL) 1007 printf("%s: %s packet was received in initialization phase\n", 1008 unit->hci_devname, pktstr); 1009 if ( 1010 #ifdef BTUART_DEBUG 1011 btuart_debug || 1012 #endif 1013 pktstr != NULL) { 1014 printf("%s: %s:", __FUNCTION__, unit->hci_devname); 1015 for (i = 0; i < m->m_len; i++) 1016 printf(" %02x", *(rptr + i)); 1017 printf("\n"); 1018 } 1019 1020 if (*rptr == HCI_EVENT_PKT) 1021 if (unit->hci_eventqlen <= hci_eventq_max) { 1022 unit->hci_eventqlen++; 1023 MBUFQ_ENQUEUE(&unit->hci_eventq, m); 1024 m = NULL; 1025 wakeup(&unit->hci_eventq); 1026 } 1027 1028 if (m != NULL) 1029 m_freem(m); 1030 } 1031 1032 1033 /* 1034 * Line discipline functions. 1035 */ 1036 /* ARGSUSED */ 1037 static int 1038 bth4open(dev_t device __unused, struct tty *tp) 1039 { 1040 struct btuart_softc *sc; 1041 struct cfdata *cfdata; 1042 struct lwp *l = curlwp; /* XXX */ 1043 int error, unit, s; 1044 static char name[] = "btuart"; 1045 1046 if ((error = kauth_authorize_device_tty(l->l_cred, 1047 KAUTH_GENERIC_ISSUSER, tp)) != 0) 1048 return error; 1049 1050 s = spltty(); 1051 1052 if (tp->t_linesw == &bth4_disc) { 1053 sc = (struct btuart_softc *)tp->t_sc; 1054 if (sc != NULL) { 1055 splx(s); 1056 return EBUSY; 1057 } 1058 } 1059 1060 KASSERT(tp->t_oproc != NULL); 1061 1062 cfdata = malloc(sizeof(struct cfdata), M_DEVBUF, M_WAITOK); 1063 for (unit = 0; unit < btuart_cd.cd_ndevs; unit++) 1064 if (btuart_cd.cd_devs[unit] == NULL) 1065 break; 1066 cfdata->cf_name = name; 1067 cfdata->cf_atname = name; 1068 cfdata->cf_unit = unit; 1069 cfdata->cf_fstate = FSTATE_STAR; 1070 1071 printf("%s%d at tty major %d minor %d", 1072 name, unit, major(tp->t_dev), minor(tp->t_dev)); 1073 sc = (struct btuart_softc *)config_attach_pseudo(cfdata); 1074 if (sc == NULL) { 1075 splx(s); 1076 return EIO; 1077 } 1078 tp->t_sc = sc; 1079 sc->sc_tp = tp; 1080 1081 ttyflush(tp, FREAD | FWRITE); 1082 1083 splx(s); 1084 1085 return 0; 1086 } 1087 1088 /* ARGSUSED */ 1089 static int 1090 bth4close(struct tty *tp, int flag __unused) 1091 { 1092 struct btuart_softc *sc; 1093 struct cfdata *cfdata; 1094 int s, baud; 1095 1096 sc = tp->t_sc; 1097 1098 /* reset to initial speed */ 1099 if (sc->sc_bth4hci.init != NULL) { 1100 baud = sc->sc_baud; 1101 sc->sc_baud = sc->sc_bth4hci.init_baud; 1102 sc->sc_bth4hci.init_baud = baud; 1103 s = splserial(); 1104 sc->sc_input_acl = bth4init_input; 1105 sc->sc_input_sco = bth4init_input; 1106 sc->sc_input_event = bth4init_input; 1107 splx(s); 1108 if ((*sc->sc_bth4hci.init)(sc) != 0) 1109 printf("%s: reset speed fail\n", device_xname(sc->sc_dev)); 1110 } 1111 1112 s = spltty(); 1113 ttyflush(tp, FREAD | FWRITE); 1114 ttyldisc_release(tp->t_linesw); 1115 tp->t_linesw = ttyldisc_default(); 1116 if (sc != NULL) { 1117 tp->t_sc = NULL; 1118 if (sc->sc_tp == tp) { 1119 cfdata = device_cfdata(sc->sc_dev); 1120 config_detach(sc->sc_dev, 0); 1121 free(cfdata, M_DEVBUF); 1122 } 1123 1124 } 1125 splx(s); 1126 return 0; 1127 } 1128 1129 /* ARGSUSED */ 1130 static int 1131 bth4ioctl(struct tty *tp, u_long cmd, void *data, 1132 int flag __unused, struct lwp *l __unused) 1133 { 1134 struct btuart_softc *sc = (struct btuart_softc *)tp->t_sc; 1135 int error, i; 1136 1137 if (sc == NULL || tp != sc->sc_tp) 1138 return EPASSTHROUGH; 1139 1140 error = 0; 1141 switch (cmd) { 1142 case BTUART_HCITYPE: 1143 for (i = 0; bth4hci[i].type != -1; i++) 1144 if (bth4hci[i].type == *(uint32_t *)data) 1145 break; 1146 if (bth4hci[i].type != -1) 1147 memcpy(&sc->sc_bth4hci, &bth4hci[i], 1148 sizeof(struct bth4hci)); 1149 else 1150 error = EINVAL; 1151 break; 1152 1153 case BTUART_INITSPEED: 1154 sc->sc_bth4hci.init_baud = *(uint32_t *)data; 1155 break; 1156 1157 case BTUART_START: 1158 error = bth4init(sc); 1159 break; 1160 1161 default: 1162 error = EPASSTHROUGH; 1163 break; 1164 } 1165 1166 return error; 1167 } 1168 1169 static int 1170 bth4input(int c, struct tty *tp) 1171 { 1172 struct btuart_softc *sc = (struct btuart_softc *)tp->t_sc; 1173 struct mbuf *m = sc->sc_rxp; 1174 int space = 0; 1175 1176 c &= TTY_CHARMASK; 1177 1178 /* If we already started a packet, find the trailing end of it. */ 1179 if (m) { 1180 while (m->m_next) 1181 m = m->m_next; 1182 1183 space = M_TRAILINGSPACE(m); 1184 } 1185 1186 if (space == 0) { 1187 if (m == NULL) { 1188 /* new packet */ 1189 MGETHDR(m, M_DONTWAIT, MT_DATA); 1190 if (m == NULL) { 1191 printf("%s: out of memory\n", 1192 device_xname(sc->sc_dev)); 1193 ++sc->sc_unit.hci_stats.err_rx; 1194 return 0; /* (lost sync) */ 1195 } 1196 1197 sc->sc_rxp = m; 1198 m->m_pkthdr.len = m->m_len = 0; 1199 space = MHLEN; 1200 1201 sc->sc_state = BTUART_RECV_PKT_TYPE; 1202 sc->sc_want = 1; 1203 } else { 1204 /* extend mbuf */ 1205 MGET(m->m_next, M_DONTWAIT, MT_DATA); 1206 if (m->m_next == NULL) { 1207 printf("%s: out of memory\n", 1208 device_xname(sc->sc_dev)); 1209 ++sc->sc_unit.hci_stats.err_rx; 1210 return 0; /* (lost sync) */ 1211 } 1212 1213 m = m->m_next; 1214 m->m_len = 0; 1215 space = MLEN; 1216 1217 if (sc->sc_want > MINCLSIZE) { 1218 MCLGET(m, M_DONTWAIT); 1219 if (m->m_flags & M_EXT) 1220 space = MCLBYTES; 1221 } 1222 } 1223 } 1224 1225 mtod(m, uint8_t *)[m->m_len++] = c; 1226 sc->sc_rxp->m_pkthdr.len++; 1227 sc->sc_unit.hci_stats.byte_rx++; 1228 1229 sc->sc_want--; 1230 if (sc->sc_want > 0) 1231 return 0; /* want more */ 1232 1233 switch (sc->sc_state) { 1234 case BTUART_RECV_PKT_TYPE: /* Got packet type */ 1235 1236 switch (c) { 1237 case HCI_ACL_DATA_PKT: 1238 sc->sc_state = BTUART_RECV_ACL_HDR; 1239 sc->sc_want = sizeof(hci_acldata_hdr_t) - 1; 1240 break; 1241 1242 case HCI_SCO_DATA_PKT: 1243 sc->sc_state = BTUART_RECV_SCO_HDR; 1244 sc->sc_want = sizeof(hci_scodata_hdr_t) - 1; 1245 break; 1246 1247 case HCI_EVENT_PKT: 1248 sc->sc_state = BTUART_RECV_EVENT_HDR; 1249 sc->sc_want = sizeof(hci_event_hdr_t) - 1; 1250 break; 1251 1252 default: 1253 printf("%s: Unknown packet type=%#x!\n", 1254 device_xname(sc->sc_dev), c); 1255 sc->sc_unit.hci_stats.err_rx++; 1256 m_freem(sc->sc_rxp); 1257 sc->sc_rxp = NULL; 1258 return 0; /* (lost sync) */ 1259 } 1260 1261 break; 1262 1263 /* 1264 * we assume (correctly of course :) that the packet headers all fit 1265 * into a single pkthdr mbuf 1266 */ 1267 case BTUART_RECV_ACL_HDR: /* Got ACL Header */ 1268 sc->sc_state = BTUART_RECV_ACL_DATA; 1269 sc->sc_want = mtod(m, hci_acldata_hdr_t *)->length; 1270 sc->sc_want = le16toh(sc->sc_want); 1271 break; 1272 1273 case BTUART_RECV_SCO_HDR: /* Got SCO Header */ 1274 sc->sc_state = BTUART_RECV_SCO_DATA; 1275 sc->sc_want = mtod(m, hci_scodata_hdr_t *)->length; 1276 break; 1277 1278 case BTUART_RECV_EVENT_HDR: /* Got Event Header */ 1279 sc->sc_state = BTUART_RECV_EVENT_DATA; 1280 sc->sc_want = mtod(m, hci_event_hdr_t *)->length; 1281 break; 1282 1283 case BTUART_RECV_ACL_DATA: /* ACL Packet Complete */ 1284 (*sc->sc_input_acl)(&sc->sc_unit, sc->sc_rxp); 1285 sc->sc_unit.hci_stats.acl_rx++; 1286 sc->sc_rxp = m = NULL; 1287 break; 1288 1289 case BTUART_RECV_SCO_DATA: /* SCO Packet Complete */ 1290 (*sc->sc_input_sco)(&sc->sc_unit, sc->sc_rxp); 1291 sc->sc_unit.hci_stats.sco_rx++; 1292 sc->sc_rxp = m = NULL; 1293 break; 1294 1295 case BTUART_RECV_EVENT_DATA: /* Event Packet Complete */ 1296 sc->sc_unit.hci_stats.evt_rx++; 1297 (*sc->sc_input_event)(&sc->sc_unit, sc->sc_rxp); 1298 sc->sc_rxp = m = NULL; 1299 break; 1300 1301 default: 1302 panic("%s: invalid state %d!\n", 1303 device_xname(sc->sc_dev), sc->sc_state); 1304 } 1305 1306 return 0; 1307 } 1308 1309 static int 1310 bth4start(struct tty *tp) 1311 { 1312 struct btuart_softc *sc = (struct btuart_softc *)tp->t_sc; 1313 struct mbuf *m; 1314 int count, rlen; 1315 uint8_t *rptr; 1316 1317 m = sc->sc_txp; 1318 if (m == NULL) { 1319 sc->sc_unit.hci_flags &= ~BTF_XMIT; 1320 bth4_start(&sc->sc_unit); 1321 return 0; 1322 } 1323 1324 count = 0; 1325 rlen = 0; 1326 rptr = mtod(m, uint8_t *); 1327 1328 for(;;) { 1329 if (rlen >= m->m_len) { 1330 m = m->m_next; 1331 if (m == NULL) { 1332 m = sc->sc_txp; 1333 sc->sc_txp = NULL; 1334 1335 if (M_GETCTX(m, void *) == NULL) 1336 m_freem(m); 1337 else 1338 hci_complete_sco(&sc->sc_unit, m); 1339 1340 break; 1341 } 1342 1343 rlen = 0; 1344 rptr = mtod(m, uint8_t *); 1345 continue; 1346 } 1347 1348 if (putc(*rptr++, &tp->t_outq) < 0) { 1349 m_adj(m, rlen); 1350 break; 1351 } 1352 rlen++; 1353 count++; 1354 } 1355 1356 sc->sc_unit.hci_stats.byte_tx += count; 1357 1358 if (tp->t_outq.c_cc != 0) 1359 (*tp->t_oproc)(tp); 1360 1361 return 0; 1362 } 1363 1364 1365 /* 1366 * HCI UART (H4) functions. 1367 */ 1368 static int 1369 bth4_enable(struct hci_unit *unit) 1370 { 1371 1372 if (unit->hci_flags & BTF_RUNNING) 1373 return 0; 1374 1375 unit->hci_flags |= BTF_RUNNING; 1376 unit->hci_flags &= ~BTF_XMIT; 1377 1378 return 0; 1379 } 1380 1381 static void 1382 bth4_disable(struct hci_unit *unit) 1383 { 1384 struct btuart_softc *sc = unit->hci_softc; 1385 1386 if ((unit->hci_flags & BTF_RUNNING) == 0) 1387 return; 1388 1389 if (sc->sc_rxp) { 1390 m_freem(sc->sc_rxp); 1391 sc->sc_rxp = NULL; 1392 } 1393 1394 if (sc->sc_txp) { 1395 m_freem(sc->sc_txp); 1396 sc->sc_txp = NULL; 1397 } 1398 1399 unit->hci_flags &= ~BTF_RUNNING; 1400 } 1401 1402 static void 1403 bth4_start(struct hci_unit *unit) 1404 { 1405 struct btuart_softc *sc = unit->hci_softc; 1406 struct mbuf *m; 1407 1408 KASSERT((unit->hci_flags & BTF_XMIT) == 0); 1409 KASSERT(sc->sc_txp == NULL); 1410 1411 if (MBUFQ_FIRST(&unit->hci_cmdq)) { 1412 MBUFQ_DEQUEUE(&unit->hci_cmdq, m); 1413 unit->hci_stats.cmd_tx++; 1414 M_SETCTX(m, NULL); 1415 goto start; 1416 } 1417 1418 if (MBUFQ_FIRST(&unit->hci_scotxq)) { 1419 MBUFQ_DEQUEUE(&unit->hci_scotxq, m); 1420 unit->hci_stats.sco_tx++; 1421 goto start; 1422 } 1423 1424 if (MBUFQ_FIRST(&unit->hci_acltxq)) { 1425 MBUFQ_DEQUEUE(&unit->hci_acltxq, m); 1426 unit->hci_stats.acl_tx++; 1427 M_SETCTX(m, NULL); 1428 goto start; 1429 } 1430 1431 /* Nothing to send */ 1432 return; 1433 1434 start: 1435 sc->sc_txp = m; 1436 unit->hci_flags |= BTF_XMIT; 1437 bth4start(sc->sc_tp); 1438 } 1439
Indexes created Wed Oct 01 13:09:50 GMT 2025