btuart.c revision 1.8.4.1
1 /* $NetBSD: btuart.c,v 1.8.4.1 2007/10/25 22:37:11 bouyer 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 1.8.4.1 2007/10/25 22:37:11 bouyer 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 struct device 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(struct device *, struct cfdata *, void *); 99 static void btuart_attach(struct device *, struct device *, void *); 100 static int btuart_detach(struct device *, 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(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(struct device *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(struct device *parent __unused, 213 struct device *self, void *aux __unused) 214 { 215 struct btuart_softc *sc = device_private(self); 216 int i; 217 218 aprint_normal("\n"); 219 aprint_naive("\n"); 220 221 sc->sc_input_acl = bth4init_input; 222 sc->sc_input_sco = bth4init_input; 223 sc->sc_input_event = bth4init_input; 224 225 /* Copy default type */ 226 for (i = 0; bth4hci[i].type != BTUART_HCITYPE_ANY; i++); 227 memcpy(&sc->sc_bth4hci, &bth4hci[i], sizeof(struct bth4hci)); 228 229 /* Attach Bluetooth unit */ 230 sc->sc_unit.hci_softc = sc; 231 sc->sc_unit.hci_devname = sc->sc_dev.dv_xname; 232 sc->sc_unit.hci_enable = bth4_enable; 233 sc->sc_unit.hci_disable = bth4_disable; 234 sc->sc_unit.hci_start_cmd = bth4_start; 235 sc->sc_unit.hci_start_acl = bth4_start; 236 sc->sc_unit.hci_start_sco = bth4_start; 237 sc->sc_unit.hci_ipl = makeiplcookie(IPL_TTY); 238 hci_attach(&sc->sc_unit); 239 } 240 241 /* 242 * Autoconf detach routine. Called when we close the line discipline. 243 */ 244 static int 245 btuart_detach(struct device *self, int flags __unused) 246 { 247 struct btuart_softc *sc = device_private(self); 248 249 hci_detach(&sc->sc_unit); 250 251 return 0; 252 } 253 254 255 static int 256 bth4_waitresp(struct btuart_softc *sc, struct mbuf **mp, uint16_t opcode) 257 { 258 struct hci_unit *unit = &sc->sc_unit; 259 hci_event_hdr_t *e; 260 int status = 0, rv; 261 262 *mp = NULL; 263 while (1 /* CONSTCOND */) { 264 if ((rv = 265 tsleep(&unit->hci_eventq, PCATCH, "bth4init", 0)) != 0) 266 return rv; 267 268 MBUFQ_DEQUEUE(&unit->hci_eventq, *mp); 269 unit->hci_eventqlen--; 270 KASSERT(*mp != NULL); 271 272 e = mtod(*mp, hci_event_hdr_t *); 273 if (e->event == HCI_EVENT_COMMAND_COMPL) { 274 hci_command_compl_ep *ep; 275 276 ep = (hci_command_compl_ep *)(e + 1); 277 if (ep->opcode == opcode) { 278 status = *(char *)(ep + 1); 279 break; 280 } 281 } else if (e->event == HCI_EVENT_COMMAND_STATUS) { 282 hci_command_status_ep *ep; 283 284 ep = (hci_command_status_ep *)(e + 1); 285 if (ep->opcode == opcode) { 286 status = ep->status; 287 break; 288 } 289 } else if (e->event == HCI_EVENT_VENDOR) 290 break; 291 } 292 293 return status; 294 } 295 296 static int 297 bth4_firmload(struct btuart_softc *sc, char *filename, 298 int (*func_firmload)(struct btuart_softc *, int, char *)) 299 { 300 const cfdriver_t cd = device_cfdriver(&sc->sc_dev); 301 firmware_handle_t fh = NULL; 302 int error, size; 303 char *buf; 304 305 if ((error = firmware_open(cd->cd_name, filename, &fh)) != 0) { 306 printf("firmware_open failed\n"); 307 return error; 308 } 309 size = firmware_get_size(fh); 310 if ((buf = firmware_malloc(size)) != NULL) { 311 printf("firmware_malloc failed\n"); 312 firmware_close(fh); 313 return ENOMEM; 314 } 315 316 if ((error = firmware_read(fh, 0, buf, size)) != 0) 317 printf("firmware_read failed\n"); 318 if (error == 0) 319 error = (*func_firmload)(sc, size, buf); 320 321 firmware_close(fh); 322 firmware_free(buf, size); 323 324 return error; 325 } 326 327 /* 328 * LSI initialize functions. 329 */ 330 static int 331 init_ericsson(struct btuart_softc *sc) 332 { 333 struct mbuf *m; 334 struct hci_unit *unit = &sc->sc_unit; 335 hci_cmd_hdr_t *p; 336 int i, error = 0; 337 const uint16_t opcode = htole16(HCI_CMD_ERICSSON_SET_UART_BAUD_RATE); 338 static struct { 339 int baud; 340 uint8_t param; 341 } ericsson_baudtbl[] = { 342 { B460800, 0x00 }, 343 { B230400, 0x01 }, 344 { B115200, 0x02 }, 345 { B57600, 0x03 }, 346 { B28800, 0x04 }, 347 { B14400, 0x05 }, 348 { B7200, 0x06 }, 349 #if defined(B3600) 350 { B3600, 0x07 }, 351 #endif 352 { B1800, 0x08 }, 353 #if defined(B900) 354 { B900, 0x09 }, 355 #endif 356 #if defined(B153600) 357 { B153600, 0x10 }, 358 #endif 359 { B76800, 0x11 }, 360 { B38400, 0x12 }, 361 { B19200, 0x13 }, 362 { B9600, 0x14 }, 363 { B4800, 0x15 }, 364 { B2400, 0x16 }, 365 { B1200, 0x17 }, 366 { B600, 0x18 }, 367 { B300, 0x19 }, 368 { B921600, 0x20 }, 369 { B0, 0xff } 370 }; 371 372 for (i = 0; ericsson_baudtbl[i].baud != sc->sc_baud; i++) 373 if (ericsson_baudtbl[i].baud == B0) 374 return EINVAL; 375 376 m = m_gethdr(M_WAIT, MT_DATA); 377 p = mtod(m, hci_cmd_hdr_t *); 378 p->type = HCI_CMD_PKT; 379 p->opcode = opcode; 380 p->length = sizeof(ericsson_baudtbl[0].param); 381 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 382 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, 383 &ericsson_baudtbl[i].param); 384 385 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 386 bth4_start(unit); 387 388 #if 0 389 error = bth4_waitresp(sc, &m, opcode); 390 if (m != NULL) { 391 if (error != 0) { 392 printf("%s: Ericsson_Set_UART_Baud_Rate failed:" 393 " Status 0x%02x\n", sc->sc_dev.dv_xname, error); 394 error = EFAULT; 395 } 396 m_freem(m); 397 } 398 #else 399 /* 400 * XXXX: We cannot correctly receive this response perhaps. Wait 401 * until the transmission of the data of 5 bytes * 10 bit is completed. 402 * 1000000usec * 10bit * 5byte / baud 403 */ 404 delay(50000000 / sc->sc_bth4hci.init_baud); 405 #endif 406 return error; 407 } 408 409 static int 410 init_digi(struct btuart_softc *sc) 411 { 412 struct mbuf *m; 413 struct hci_unit *unit = &sc->sc_unit; 414 hci_cmd_hdr_t *p; 415 uint8_t param; 416 417 /* XXXX */ 418 switch (sc->sc_baud) { 419 case B57600: 420 param = 0x08; 421 break; 422 423 case B115200: 424 param = 0x09; 425 break; 426 427 default: 428 return EINVAL; 429 } 430 431 m = m_gethdr(M_WAIT, MT_DATA); 432 p = mtod(m, hci_cmd_hdr_t *); 433 p->type = HCI_CMD_PKT; 434 #define HCI_CMD_DIGIANSWER_SET_UART_BAUD_RATE 0xfc07 /* XXXX */ 435 p->opcode = htole16(HCI_CMD_DIGIANSWER_SET_UART_BAUD_RATE); 436 p->length = sizeof(param); 437 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 438 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, ¶m); 439 440 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 441 bth4_start(unit); 442 443 /* 444 * XXXX 445 * Wait until the transmission of the data of 5 bytes * 10 bit is 446 * completed. 447 * 1000000usec * 10bit * 5byte / baud 448 */ 449 delay(50000000 / sc->sc_bth4hci.init_baud); 450 return 0; 451 } 452 453 static int 454 init_texas(struct btuart_softc *sc) 455 { 456 457 /* XXXX: Should we obtain the version of LMP? */ 458 return 0; 459 } 460 461 static int 462 init_csr(struct btuart_softc *sc) 463 { 464 struct mbuf *m; 465 struct hci_unit *unit = &sc->sc_unit; 466 hci_cmd_hdr_t *p; 467 int error; 468 const uint16_t opcode = htole16(HCI_CMD_CSR_EXTN); 469 struct { 470 uint8_t last :1; 471 uint8_t first :1; 472 #define CSR_BCCMD_CHANID_BCCMD 2 473 #define CSR_BCCMD_CHANID_HQ 3 474 #define CSR_BCCMD_CHANID_DEVMGRLIB 4 475 #define CSR_BCCMD_CHANID_L2CAPLIB 8 476 #define CSR_BCCMD_CHANID_RFCOMMLIB 9 477 #define CSR_BCCMD_CHANID_SDPLIB 10 478 #define CSR_BCCMD_CHANID_DFU 12 479 #define CSR_BCCMD_CHANID_VM 13 480 #define CSR_BCCMD_CHANID_LMDEBUG 20 481 uint8_t chanid :6; 482 483 struct { 484 #define CSR_BCCMD_MESSAGE_TYPE_GETREQ 0x0000 485 #define CSR_BCCMD_MESSAGE_TYPE_GETRESP 0x0001 486 #define CSR_BCCMD_MESSAGE_TYPE_SETREQ 0x0002 487 uint16_t type; 488 uint16_t length; 489 uint16_t seqno; 490 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART 0x6802 491 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART_STOPB 0x2000 492 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART_PARENB 0x4000 493 #define CSR_BCCMD_MESSAGE_VARID_CONFIG_UART_PARODD 0x8000 494 uint16_t varid; 495 #define CSR_BCCMD_MESSAGE_STATUS_OK 0x0000 496 #define CSR_BCCMD_MESSAGE_STATUS_NO_SUCH_VARID 0x0001 497 #define CSR_BCCMD_MESSAGE_STATUS_TOO_BIG 0x0002 498 #define CSR_BCCMD_MESSAGE_STATUS_NO_VALUE 0x0003 499 #define CSR_BCCMD_MESSAGE_STATUS_BAD_REQ 0x0004 500 #define CSR_BCCMD_MESSAGE_STATUS_NO_ACCESS 0x0005 501 #define CSR_BCCMD_MESSAGE_STATUS_READ_ONLY 0x0006 502 #define CSR_BCCMD_MESSAGE_STATUS_WRITE_ONLY 0x0007 503 #define CSR_BCCMD_MESSAGE_STATUS_ERROR 0x0008 504 #define CSR_BCCMD_MESSAGE_STATUS_PERMISION_DENIED 0x0009 505 uint16_t status; 506 uint16_t payload[4]; 507 } message; 508 } bccmd; 509 510 m = m_gethdr(M_WAIT, MT_DATA); 511 p = mtod(m, hci_cmd_hdr_t *); 512 p->type = HCI_CMD_PKT; 513 p->opcode = opcode; 514 p->length = sizeof(bccmd); 515 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 516 517 /* setup BCSP command packet */ 518 bccmd.last = 1; 519 bccmd.first = 1; 520 bccmd.chanid = CSR_BCCMD_CHANID_BCCMD; 521 bccmd.message.type = htole16(CSR_BCCMD_MESSAGE_TYPE_SETREQ); 522 bccmd.message.length = htole16(sizeof(bccmd.message) >> 1); 523 bccmd.message.seqno = htole16(0); 524 bccmd.message.varid = htole16(CSR_BCCMD_MESSAGE_VARID_CONFIG_UART); 525 bccmd.message.status = htole16(CSR_BCCMD_MESSAGE_STATUS_OK); 526 memset(bccmd.message.payload, 0, sizeof(bccmd.message.payload)); 527 528 /* Value = (baud rate / 244.140625) | no parity | 1 stop bit. */ 529 bccmd.message.payload[0] = htole16((sc->sc_baud * 64 + 7812) / 15625); 530 531 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, &bccmd); 532 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 533 bth4_start(unit); 534 535 error = bth4_waitresp(sc, &m, opcode); 536 if (m != NULL) { 537 /* 538 * XXXX: 539 * We will have to check the HCI_EVENT_VENDOR packet. For 540 * instance, it might be a different HCI_EVENT_VENDOR packet. 541 */ 542 if (error != 0) { 543 printf("%s: CSR set UART speed failed: Status 0x%02x\n", 544 sc->sc_dev.dv_xname, error); 545 error = EFAULT; 546 } 547 m_freem(m); 548 } 549 550 return error; 551 } 552 553 static int 554 init_swave(struct btuart_softc *sc) 555 { 556 struct mbuf *m; 557 struct hci_unit *unit = &sc->sc_unit; 558 hci_cmd_hdr_t *p; 559 hci_event_hdr_t *e; 560 int i, error; 561 #define HCI_CMD_SWAVE_SET_UART_BAUD_RATE 0xfc0b /* XXXX */ 562 const uint16_t opcode = htole16(HCI_CMD_SWAVE_SET_UART_BAUD_RATE); 563 char param[6], *resp; 564 static struct { /* XXXX */ 565 int baud; 566 uint8_t param; 567 } swave_baudtbl[] = { 568 { B19200, 0x03 }, 569 { B38400, 0x02 }, 570 { B57600, 0x01 }, 571 { B115200, 0x00 }, 572 { B0, 0xff } 573 }; 574 575 for (i = 0; swave_baudtbl[i].baud != sc->sc_baud; i++) 576 if (swave_baudtbl[i].baud == B0) 577 return EINVAL; 578 579 m = m_gethdr(M_WAIT, MT_DATA); 580 /* first send 'param access set' command. */ 581 p = mtod(m, hci_cmd_hdr_t *); 582 p->type = HCI_CMD_PKT; 583 p->opcode = opcode; 584 p->length = sizeof(param); 585 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 586 587 /* XXXX */ 588 param[0] = 0x01; /* param sub command */ 589 param[1] = 0x11; /* HCI Tranport Params */ 590 param[2] = 0x03; /* length of the parameter following */ 591 param[3] = 0x01; /* HCI Transport flow control enable */ 592 param[4] = 0x01; /* HCI Transport Type = UART */ 593 param[5] = swave_baudtbl[i].param; 594 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, ¶m); 595 596 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 597 bth4_start(unit); 598 599 while(1 /* CONSTCOND */) { 600 error = bth4_waitresp(sc, &m, opcode); 601 if (error != 0) { 602 if (m != NULL) 603 m_freem(m); 604 printf("%s: swave set baud rate command failed:" 605 " error 0x%02x\n", sc->sc_dev.dv_xname, error); 606 return error; 607 } 608 if (m != NULL) { 609 e = mtod(m, hci_event_hdr_t *); 610 resp = (char *)(e + 1); 611 if (e->length == 7 && *resp == 0xb && 612 memcmp(resp + 1, param, sizeof(param)) == 0) 613 break; 614 m_freem(m); 615 } 616 } 617 618 /* send 'reset' command consecutively. */ 619 p = mtod(m, hci_cmd_hdr_t *); 620 p->type = HCI_CMD_PKT; 621 p->opcode = htole16(HCI_CMD_RESET); 622 p->length = 0; 623 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 624 625 /* 626 * XXXX 627 * Wait until the transmission of the data of 4 bytes * 10 bit is 628 * completed. 629 * 1000000usec * 10bit * 4byte / baud 630 */ 631 delay(40000000 / sc->sc_bth4hci.init_baud); 632 return 0; 633 } 634 635 static int 636 init_st(struct btuart_softc *sc) 637 { 638 struct mbuf *m; 639 struct hci_unit *unit = &sc->sc_unit; 640 hci_cmd_hdr_t *p; 641 int i; 642 static struct { /* XXXX */ 643 int baud; 644 uint8_t param; 645 } st_baudtbl[] = { 646 { B9600, 0x09 }, 647 { B19200, 0x0b }, 648 { B38400, 0x0d }, 649 { B57600, 0x0e }, 650 { B115200, 0x10 }, 651 { B230400, 0x12 }, 652 { B460800, 0x13 }, 653 { B921600, 0x14 }, 654 { B0, 0xff } 655 }; 656 657 for (i = 0; st_baudtbl[i].baud != sc->sc_baud; i++) 658 if (st_baudtbl[i].baud == B0) 659 return EINVAL; 660 661 m = m_gethdr(M_WAIT, MT_DATA); 662 p = mtod(m, hci_cmd_hdr_t *); 663 p->type = HCI_CMD_PKT; 664 #define HCI_CMD_ST_SET_UART_BAUD_RATE 0xfc46 /* XXXX */ 665 p->opcode = htole16(HCI_CMD_ST_SET_UART_BAUD_RATE); 666 p->length = sizeof(st_baudtbl[0].param); 667 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 668 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, &st_baudtbl[i].param); 669 670 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 671 bth4_start(unit); 672 673 /* 674 * XXXX 675 * Wait until the transmission of the data of 5 bytes * 10 bit is 676 * completed. 677 * 1000000usec * 10bit * 5byte / baud 678 */ 679 delay(50000000 / sc->sc_bth4hci.init_baud); 680 return 0; 681 } 682 683 static int 684 firmload_stlc2500(struct btuart_softc *sc, int size, char *buf) 685 { 686 struct hci_unit *unit = &sc->sc_unit; 687 struct mbuf *m; 688 hci_cmd_hdr_t *p; 689 int error, offset, n; 690 uint16_t opcode = htole16(0xfc2e); /* XXXX */ 691 uint8_t seq; 692 693 m = m_gethdr(M_WAIT, MT_DATA); 694 seq = 0; 695 offset = 0; 696 error = 0; 697 while (offset < size) { 698 n = size - offset < 254 ? size - offset : 254; 699 700 p = mtod(m, hci_cmd_hdr_t *); 701 p->type = HCI_CMD_PKT; 702 p->opcode = opcode; 703 p->length = n; 704 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 705 *(char *)(p + 1) = seq; 706 m_copyback(m, 707 sizeof(hci_cmd_hdr_t) + 1, p->length, buf + offset); 708 709 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 710 bth4_start(unit); 711 712 error = bth4_waitresp(sc, &m, opcode); 713 if (m != NULL) { 714 if (error != 0) { 715 printf("%s: stlc2500 firmware load failed:" 716 " Status 0x%02x\n", 717 sc->sc_dev.dv_xname, error); 718 error = EFAULT; 719 break; 720 } 721 } 722 723 seq++; 724 offset += n; 725 } 726 m_freem(m); 727 728 return error; 729 } 730 731 static int 732 init_stlc2500(struct btuart_softc *sc) 733 { 734 struct mbuf *m; 735 struct hci_unit *unit = &sc->sc_unit; 736 hci_cmd_hdr_t *p; 737 hci_event_hdr_t *e; 738 hci_read_local_ver_rp *lv; 739 int error, revision, i; 740 uint16_t opcode; 741 char filename[NAME_MAX], param[8]; 742 static const char filenametmpl[] = "STLC2500_R%d_%02d%s"; 743 const char *suffix[] = { ".ptc", ".ssf", NULL }; 744 745 m = m_gethdr(M_WAIT, MT_DATA); 746 p = mtod(m, hci_cmd_hdr_t *); 747 opcode = htole16(HCI_CMD_READ_LOCAL_VER); 748 p->type = HCI_CMD_PKT; 749 p->opcode = opcode; 750 p->length = 0; 751 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 752 753 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 754 bth4_start(unit); 755 756 error = bth4_waitresp(sc, &m, opcode); 757 if (m != NULL) { 758 if (error != 0) { 759 printf("%s: HCI_Read_Local_Version_Information failed:" 760 " Status 0x%02x\n", sc->sc_dev.dv_xname, error); 761 error = EFAULT; 762 m_freem(m); 763 } 764 } 765 if (error != 0) 766 return error; 767 768 e = mtod(m, hci_event_hdr_t *); 769 lv = (hci_read_local_ver_rp *)(e + 1); 770 revision = le16toh(lv->hci_revision); 771 opcode = htole16(HCI_CMD_RESET); 772 for (i = 0; suffix[i] != NULL; i++) { 773 /* send firmware */ 774 snprintf(filename, sizeof(filename), filenametmpl, 775 (uint8_t)(revision >> 8), (uint8_t)revision, suffix[i]); 776 bth4_firmload(sc, filename, firmload_stlc2500); 777 778 p = mtod(m, hci_cmd_hdr_t *); 779 p->type = HCI_CMD_PKT; 780 p->opcode = opcode; 781 p->length = 0; 782 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 783 784 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 785 bth4_start(unit); 786 787 error = bth4_waitresp(sc, &m, opcode); 788 if (m != NULL) { 789 if (error != 0) { 790 printf("%s: HCI_Reset (%d) failed:" 791 " Status 0x%02x\n", 792 sc->sc_dev.dv_xname, i, error); 793 error = EFAULT; 794 m_freem(m); 795 } 796 } 797 if (error != 0) 798 return error; 799 } 800 801 /* XXXX: We will obtain the character string. But I don't know... */ 802 p = mtod(m, hci_cmd_hdr_t *); 803 opcode = htole16(0xfc0f); /* XXXXX ?? */ 804 p->type = HCI_CMD_PKT; 805 p->opcode = opcode; 806 p->length = 0; 807 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 808 809 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 810 bth4_start(unit); 811 812 error = bth4_waitresp(sc, &m, opcode); 813 if (m != NULL) { 814 if (error != 0) { 815 printf("%s: failed: opcode 0xfc0f Status 0x%02x\n", 816 sc->sc_dev.dv_xname, error); 817 error = EFAULT; 818 m_freem(m); 819 } 820 } 821 if (error != 0) 822 return error; 823 /* 824 * XXXX: 825 * We do not know the beginning point of this character string. 826 * Because it doesn't know the event of this packet. 827 * 828 * printf("%s: %s\n", sc->sc_dev.dv_xname, ???); 829 */ 830 831 p = mtod(m, hci_cmd_hdr_t *); 832 opcode = htole16(0xfc22); /* XXXXX ?? */ 833 p->type = HCI_CMD_PKT; 834 p->opcode = opcode; 835 p->length = sizeof(param); 836 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 837 838 /* XXXX */ 839 param[0] = 0xfe; 840 param[1] = 0x06; 841 param[2] = 0xba; 842 param[3] = 0xab; 843 param[4] = 0x00; 844 param[5] = 0xe1; 845 param[6] = 0x80; 846 param[7] = 0x00; 847 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, param); 848 849 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 850 bth4_start(unit); 851 852 error = bth4_waitresp(sc, &m, opcode); 853 if (m != NULL) { 854 if (error != 0) { 855 printf("%s: failed: opcode 0xfc0f Status 0x%02x\n", 856 sc->sc_dev.dv_xname, error); 857 error = EFAULT; 858 m_freem(m); 859 } 860 } 861 if (error != 0) 862 return error; 863 864 opcode = htole16(HCI_CMD_RESET); 865 p = mtod(m, hci_cmd_hdr_t *); 866 p->type = HCI_CMD_PKT; 867 p->opcode = opcode; 868 p->length = 0; 869 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 870 871 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 872 bth4_start(unit); 873 874 error = bth4_waitresp(sc, &m, opcode); 875 if (m != NULL) { 876 if (error != 0) { 877 printf("%s: HCI_Reset failed: Status 0x%02x\n", 878 sc->sc_dev.dv_xname, error); 879 error = EFAULT; 880 m_freem(m); 881 } 882 } 883 884 return error; 885 } 886 887 static int 888 init_bcm2035(struct btuart_softc *sc) 889 { 890 struct mbuf *m; 891 struct hci_unit *unit = &sc->sc_unit; 892 hci_cmd_hdr_t *p; 893 int i, error; 894 #define HCI_CMD_BCM2035_SET_UART_BAUD_RATE 0xfc18 /* XXXX */ 895 const uint16_t opcode = htole16(HCI_CMD_BCM2035_SET_UART_BAUD_RATE); 896 static struct { /* XXXX */ 897 int baud; 898 uint16_t param; 899 } bcm2035_baudtbl[] = { 900 { B57600, 0xe600 }, 901 { B230400, 0xfa22 }, 902 { B460800, 0xfd11 }, 903 { B921600, 0xff65 }, 904 { B0, 0xffff } 905 }; 906 907 for (i = 0; bcm2035_baudtbl[i].baud != sc->sc_baud; i++) 908 if (bcm2035_baudtbl[i].baud == -1) 909 return EINVAL; 910 911 m = m_gethdr(M_WAIT, MT_DATA); 912 913 /* 914 * XXXX: Should we send some commands? 915 * HCI_CMD_RESET and HCI_CMD_READ_LOCAL_VER and 916 * HCI_CMD_READ_LOCAL_COMMANDS 917 */ 918 919 p = mtod(m, hci_cmd_hdr_t *); 920 p->type = HCI_CMD_PKT; 921 p->opcode = opcode; 922 p->length = sizeof(bcm2035_baudtbl[0].param); 923 m->m_pkthdr.len = m->m_len = sizeof(hci_cmd_hdr_t); 924 m_copyback(m, sizeof(hci_cmd_hdr_t), p->length, 925 &bcm2035_baudtbl[i].param); 926 927 MBUFQ_ENQUEUE(&unit->hci_cmdq, m); 928 bth4_start(unit); 929 930 error = bth4_waitresp(sc, &m, opcode); 931 if (m != NULL) { 932 if (error != 0) { 933 printf("%s: bcm2035 set baud rate failed:" 934 " Status 0x%02x\n", sc->sc_dev.dv_xname, error); 935 error = EFAULT; 936 } 937 m_freem(m); 938 } 939 940 return error; 941 } 942 943 static int 944 bth4init(struct btuart_softc *sc) 945 { 946 struct tty *tp = sc->sc_tp; 947 struct termios t; 948 int error = 0, s; 949 950 sc->sc_baud = tp->t_ospeed; 951 t.c_cflag = tp->t_cflag; 952 t.c_ispeed = 0; 953 t.c_ospeed = tp->t_ospeed; 954 if ((tp->t_cflag & CRTSCTS) && !(sc->sc_bth4hci.flags & FLOW_CTL)) 955 t.c_cflag &= ~CRTSCTS; 956 if (sc->sc_bth4hci.init_baud != 0 && 957 tp->t_ospeed != sc->sc_bth4hci.init_baud) 958 t.c_ospeed = sc->sc_bth4hci.init_baud; 959 if (t.c_ospeed != tp->t_ospeed || t.c_cflag != tp->t_cflag) 960 error = (*tp->t_param)(tp, &t); 961 962 if (error == 0 && sc->sc_bth4hci.init != NULL) 963 error = (*sc->sc_bth4hci.init)(sc); 964 965 s = splserial(); 966 sc->sc_input_acl = hci_input_acl; 967 sc->sc_input_sco = hci_input_sco; 968 sc->sc_input_event = hci_input_event; 969 splx(s); 970 971 if (sc->sc_bth4hci.init_baud != 0 && 972 sc->sc_bth4hci.init_baud != sc->sc_baud) { 973 t.c_ospeed = sc->sc_baud; 974 t.c_cflag = tp->t_cflag; 975 error = (*tp->t_param)(tp, &t); 976 } 977 978 return error; 979 } 980 981 static void 982 bth4init_input(struct hci_unit *unit, struct mbuf *m) 983 { 984 int i; 985 uint8_t *rptr = mtod(m, uint8_t *); 986 const char *pktstr = NULL; 987 988 switch (*rptr) { 989 case HCI_ACL_DATA_PKT: 990 pktstr = "acl data"; 991 break; 992 993 case HCI_SCO_DATA_PKT: 994 pktstr = "sco data"; 995 break; 996 997 case HCI_EVENT_PKT: 998 break; 999 1000 default: 1001 pktstr = "unknown"; 1002 break; 1003 } 1004 if (pktstr != NULL) 1005 printf("%s: %s packet was received in initialization phase\n", 1006 unit->hci_devname, pktstr); 1007 if ( 1008 #ifdef BTUART_DEBUG 1009 btuart_debug || 1010 #endif 1011 pktstr != NULL) { 1012 printf("%s: %s:", __FUNCTION__, unit->hci_devname); 1013 for (i = 0; i < m->m_len; i++) 1014 printf(" %02x", *(rptr + i)); 1015 printf("\n"); 1016 } 1017 1018 if (*rptr == HCI_EVENT_PKT) 1019 if (unit->hci_eventqlen <= hci_eventq_max) { 1020 unit->hci_eventqlen++; 1021 MBUFQ_ENQUEUE(&unit->hci_eventq, m); 1022 m = NULL; 1023 wakeup(&unit->hci_eventq); 1024 } 1025 1026 if (m != NULL) 1027 m_freem(m); 1028 } 1029 1030 1031 /* 1032 * Line discipline functions. 1033 */ 1034 /* ARGSUSED */ 1035 static int 1036 bth4open(dev_t device __unused, struct tty *tp) 1037 { 1038 struct btuart_softc *sc; 1039 struct cfdata *cfdata; 1040 struct lwp *l = curlwp; /* XXX */ 1041 int error, unit, s; 1042 static char name[] = "btuart"; 1043 1044 if ((error = kauth_authorize_device_tty(l->l_cred, 1045 KAUTH_GENERIC_ISSUSER, tp)) != 0) 1046 return error; 1047 1048 s = spltty(); 1049 1050 if (tp->t_linesw == &bth4_disc) { 1051 sc = (struct btuart_softc *)tp->t_sc; 1052 if (sc != NULL) { 1053 splx(s); 1054 return EBUSY; 1055 } 1056 } 1057 1058 KASSERT(tp->t_oproc != NULL); 1059 1060 cfdata = malloc(sizeof(struct cfdata), M_DEVBUF, M_WAITOK); 1061 for (unit = 0; unit < btuart_cd.cd_ndevs; unit++) 1062 if (btuart_cd.cd_devs[unit] == NULL) 1063 break; 1064 cfdata->cf_name = name; 1065 cfdata->cf_atname = name; 1066 cfdata->cf_unit = unit; 1067 cfdata->cf_fstate = FSTATE_STAR; 1068 1069 printf("%s%d at tty major %d minor %d", 1070 name, unit, major(tp->t_dev), minor(tp->t_dev)); 1071 sc = (struct btuart_softc *)config_attach_pseudo(cfdata); 1072 if (sc == NULL) { 1073 splx(s); 1074 return EIO; 1075 } 1076 tp->t_sc = sc; 1077 sc->sc_tp = tp; 1078 1079 ttyflush(tp, FREAD | FWRITE); 1080 1081 splx(s); 1082 1083 return 0; 1084 } 1085 1086 /* ARGSUSED */ 1087 static int 1088 bth4close(struct tty *tp, int flag __unused) 1089 { 1090 struct btuart_softc *sc; 1091 struct cfdata *cfdata; 1092 int s, baud; 1093 1094 sc = tp->t_sc; 1095 1096 /* reset to initial speed */ 1097 if (sc->sc_bth4hci.init != NULL) { 1098 baud = sc->sc_baud; 1099 sc->sc_baud = sc->sc_bth4hci.init_baud; 1100 sc->sc_bth4hci.init_baud = baud; 1101 s = splserial(); 1102 sc->sc_input_acl = bth4init_input; 1103 sc->sc_input_sco = bth4init_input; 1104 sc->sc_input_event = bth4init_input; 1105 splx(s); 1106 if ((*sc->sc_bth4hci.init)(sc) != 0) 1107 printf("%s: reset speed fail\n", sc->sc_dev.dv_xname); 1108 } 1109 1110 s = spltty(); 1111 ttyflush(tp, FREAD | FWRITE); 1112 ttyldisc_release(tp->t_linesw); 1113 tp->t_linesw = ttyldisc_default(); 1114 if (sc != NULL) { 1115 tp->t_sc = NULL; 1116 if (sc->sc_tp == tp) { 1117 cfdata = sc->sc_dev.dv_cfdata; 1118 config_detach(&sc->sc_dev, 0); 1119 free(cfdata, M_DEVBUF); 1120 } 1121 1122 } 1123 splx(s); 1124 return 0; 1125 } 1126 1127 /* ARGSUSED */ 1128 static int 1129 bth4ioctl(struct tty *tp, u_long cmd, void *data, 1130 int flag __unused, struct lwp *l __unused) 1131 { 1132 struct btuart_softc *sc = (struct btuart_softc *)tp->t_sc; 1133 int error, i; 1134 1135 if (sc == NULL || tp != sc->sc_tp) 1136 return EPASSTHROUGH; 1137 1138 error = 0; 1139 switch (cmd) { 1140 case BTUART_HCITYPE: 1141 for (i = 0; bth4hci[i].type != -1; i++) 1142 if (bth4hci[i].type == *(uint32_t *)data) 1143 break; 1144 if (bth4hci[i].type != -1) 1145 memcpy(&sc->sc_bth4hci, &bth4hci[i], 1146 sizeof(struct bth4hci)); 1147 else 1148 error = EINVAL; 1149 break; 1150 1151 case BTUART_INITSPEED: 1152 sc->sc_bth4hci.init_baud = *(uint32_t *)data; 1153 break; 1154 1155 case BTUART_START: 1156 error = bth4init(sc); 1157 break; 1158 1159 default: 1160 error = EPASSTHROUGH; 1161 break; 1162 } 1163 1164 return error; 1165 } 1166 1167 static int 1168 bth4input(int c, struct tty *tp) 1169 { 1170 struct btuart_softc *sc = (struct btuart_softc *)tp->t_sc; 1171 struct mbuf *m = sc->sc_rxp; 1172 int space = 0; 1173 1174 c &= TTY_CHARMASK; 1175 1176 /* If we already started a packet, find the trailing end of it. */ 1177 if (m) { 1178 while (m->m_next) 1179 m = m->m_next; 1180 1181 space = M_TRAILINGSPACE(m); 1182 } 1183 1184 if (space == 0) { 1185 if (m == NULL) { 1186 /* new packet */ 1187 MGETHDR(m, M_DONTWAIT, MT_DATA); 1188 if (m == NULL) { 1189 printf("%s: out of memory\n", 1190 sc->sc_dev.dv_xname); 1191 ++sc->sc_unit.hci_stats.err_rx; 1192 return 0; /* (lost sync) */ 1193 } 1194 1195 sc->sc_rxp = m; 1196 m->m_pkthdr.len = m->m_len = 0; 1197 space = MHLEN; 1198 1199 sc->sc_state = BTUART_RECV_PKT_TYPE; 1200 sc->sc_want = 1; 1201 } else { 1202 /* extend mbuf */ 1203 MGET(m->m_next, M_DONTWAIT, MT_DATA); 1204 if (m->m_next == NULL) { 1205 printf("%s: out of memory\n", 1206 sc->sc_dev.dv_xname); 1207 ++sc->sc_unit.hci_stats.err_rx; 1208 return 0; /* (lost sync) */ 1209 } 1210 1211 m = m->m_next; 1212 m->m_len = 0; 1213 space = MLEN; 1214 1215 if (sc->sc_want > MINCLSIZE) { 1216 MCLGET(m, M_DONTWAIT); 1217 if (m->m_flags & M_EXT) 1218 space = MCLBYTES; 1219 } 1220 } 1221 } 1222 1223 mtod(m, uint8_t *)[m->m_len++] = c; 1224 sc->sc_rxp->m_pkthdr.len++; 1225 sc->sc_unit.hci_stats.byte_rx++; 1226 1227 sc->sc_want--; 1228 if (sc->sc_want > 0) 1229 return 0; /* want more */ 1230 1231 switch (sc->sc_state) { 1232 case BTUART_RECV_PKT_TYPE: /* Got packet type */ 1233 1234 switch (c) { 1235 case HCI_ACL_DATA_PKT: 1236 sc->sc_state = BTUART_RECV_ACL_HDR; 1237 sc->sc_want = sizeof(hci_acldata_hdr_t) - 1; 1238 break; 1239 1240 case HCI_SCO_DATA_PKT: 1241 sc->sc_state = BTUART_RECV_SCO_HDR; 1242 sc->sc_want = sizeof(hci_scodata_hdr_t) - 1; 1243 break; 1244 1245 case HCI_EVENT_PKT: 1246 sc->sc_state = BTUART_RECV_EVENT_HDR; 1247 sc->sc_want = sizeof(hci_event_hdr_t) - 1; 1248 break; 1249 1250 default: 1251 printf("%s: Unknown packet type=%#x!\n", 1252 sc->sc_dev.dv_xname, c); 1253 sc->sc_unit.hci_stats.err_rx++; 1254 m_freem(sc->sc_rxp); 1255 sc->sc_rxp = NULL; 1256 return 0; /* (lost sync) */ 1257 } 1258 1259 break; 1260 1261 /* 1262 * we assume (correctly of course :) that the packet headers all fit 1263 * into a single pkthdr mbuf 1264 */ 1265 case BTUART_RECV_ACL_HDR: /* Got ACL Header */ 1266 sc->sc_state = BTUART_RECV_ACL_DATA; 1267 sc->sc_want = mtod(m, hci_acldata_hdr_t *)->length; 1268 sc->sc_want = le16toh(sc->sc_want); 1269 break; 1270 1271 case BTUART_RECV_SCO_HDR: /* Got SCO Header */ 1272 sc->sc_state = BTUART_RECV_SCO_DATA; 1273 sc->sc_want = mtod(m, hci_scodata_hdr_t *)->length; 1274 break; 1275 1276 case BTUART_RECV_EVENT_HDR: /* Got Event Header */ 1277 sc->sc_state = BTUART_RECV_EVENT_DATA; 1278 sc->sc_want = mtod(m, hci_event_hdr_t *)->length; 1279 break; 1280 1281 case BTUART_RECV_ACL_DATA: /* ACL Packet Complete */ 1282 (*sc->sc_input_acl)(&sc->sc_unit, sc->sc_rxp); 1283 sc->sc_unit.hci_stats.acl_rx++; 1284 sc->sc_rxp = m = NULL; 1285 break; 1286 1287 case BTUART_RECV_SCO_DATA: /* SCO Packet Complete */ 1288 (*sc->sc_input_sco)(&sc->sc_unit, sc->sc_rxp); 1289 sc->sc_unit.hci_stats.sco_rx++; 1290 sc->sc_rxp = m = NULL; 1291 break; 1292 1293 case BTUART_RECV_EVENT_DATA: /* Event Packet Complete */ 1294 sc->sc_unit.hci_stats.evt_rx++; 1295 (*sc->sc_input_event)(&sc->sc_unit, sc->sc_rxp); 1296 sc->sc_rxp = m = NULL; 1297 break; 1298 1299 default: 1300 panic("%s: invalid state %d!\n", 1301 sc->sc_dev.dv_xname, sc->sc_state); 1302 } 1303 1304 return 0; 1305 } 1306 1307 static int 1308 bth4start(struct tty *tp) 1309 { 1310 struct btuart_softc *sc = (struct btuart_softc *)tp->t_sc; 1311 struct mbuf *m; 1312 int count, rlen; 1313 uint8_t *rptr; 1314 1315 m = sc->sc_txp; 1316 if (m == NULL) { 1317 sc->sc_unit.hci_flags &= ~BTF_XMIT; 1318 bth4_start(&sc->sc_unit); 1319 return 0; 1320 } 1321 1322 count = 0; 1323 rlen = 0; 1324 rptr = mtod(m, uint8_t *); 1325 1326 for(;;) { 1327 if (rlen >= m->m_len) { 1328 m = m->m_next; 1329 if (m == NULL) { 1330 m = sc->sc_txp; 1331 sc->sc_txp = NULL; 1332 1333 if (M_GETCTX(m, void *) == NULL) 1334 m_freem(m); 1335 else 1336 hci_complete_sco(&sc->sc_unit, m); 1337 1338 break; 1339 } 1340 1341 rlen = 0; 1342 rptr = mtod(m, uint8_t *); 1343 continue; 1344 } 1345 1346 if (putc(*rptr++, &tp->t_outq) < 0) { 1347 m_adj(m, rlen); 1348 break; 1349 } 1350 rlen++; 1351 count++; 1352 } 1353 1354 sc->sc_unit.hci_stats.byte_tx += count; 1355 1356 if (tp->t_outq.c_cc != 0) 1357 (*tp->t_oproc)(tp); 1358 1359 return 0; 1360 } 1361 1362 1363 /* 1364 * HCI UART (H4) functions. 1365 */ 1366 static int 1367 bth4_enable(struct hci_unit *unit) 1368 { 1369 1370 if (unit->hci_flags & BTF_RUNNING) 1371 return 0; 1372 1373 unit->hci_flags |= BTF_RUNNING; 1374 unit->hci_flags &= ~BTF_XMIT; 1375 1376 return 0; 1377 } 1378 1379 static void 1380 bth4_disable(struct hci_unit *unit) 1381 { 1382 struct btuart_softc *sc = unit->hci_softc; 1383 1384 if ((unit->hci_flags & BTF_RUNNING) == 0) 1385 return; 1386 1387 if (sc->sc_rxp) { 1388 m_freem(sc->sc_rxp); 1389 sc->sc_rxp = NULL; 1390 } 1391 1392 if (sc->sc_txp) { 1393 m_freem(sc->sc_txp); 1394 sc->sc_txp = NULL; 1395 } 1396 1397 unit->hci_flags &= ~BTF_RUNNING; 1398 } 1399 1400 static void 1401 bth4_start(struct hci_unit *unit) 1402 { 1403 struct btuart_softc *sc = unit->hci_softc; 1404 struct mbuf *m; 1405 1406 KASSERT((unit->hci_flags & BTF_XMIT) == 0); 1407 KASSERT(sc->sc_txp == NULL); 1408 1409 if (MBUFQ_FIRST(&unit->hci_cmdq)) { 1410 MBUFQ_DEQUEUE(&unit->hci_cmdq, m); 1411 unit->hci_stats.cmd_tx++; 1412 M_SETCTX(m, NULL); 1413 goto start; 1414 } 1415 1416 if (MBUFQ_FIRST(&unit->hci_scotxq)) { 1417 MBUFQ_DEQUEUE(&unit->hci_scotxq, m); 1418 unit->hci_stats.sco_tx++; 1419 goto start; 1420 } 1421 1422 if (MBUFQ_FIRST(&unit->hci_acltxq)) { 1423 MBUFQ_DEQUEUE(&unit->hci_acltxq, m); 1424 unit->hci_stats.acl_tx++; 1425 M_SETCTX(m, NULL); 1426 goto start; 1427 } 1428 1429 /* Nothing to send */ 1430 return; 1431 1432 start: 1433 sc->sc_txp = m; 1434 unit->hci_flags |= BTF_XMIT; 1435 bth4start(sc->sc_tp); 1436 } 1437
Indexes created Wed Oct 01 13:09:50 GMT 2025