bt3c.c revision 1.13
1 /* $NetBSD: bt3c.c,v 1.13 2007/11/03 17:41:04 plunky Exp $ */ 2 3 /*- 4 * Copyright (c) 2005 Iain D. Hibbert, 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. The name of the author may not be used to endorse or promote products 16 * derived from this software without specific prior written permission. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 19 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 20 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 21 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 22 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 23 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 24 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 25 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 26 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 27 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 /* 31 * Driver for the 3Com Bluetooth PC Card 3CRWB6096, written with reference to 32 * FreeBSD and BlueZ drivers for same, with credit for those going to: 33 * 34 * Maksim Yevmenkin <m_evmenkin (at) yahoo.com> (FreeBSD) 35 * Marcel Holtmann <marcel (at) holtmann.org> (BlueZ) 36 * Jose Orlando Pereira <jop (at) di.uminho.pt> (BlueZ) 37 * David Hinds <dahinds (at) users.sourceforge.net> (Original Code) 38 */ 39 40 /* 41 * The CIS info from my card: 42 * 43 * pcmcia1: CIS tuple chain: 44 * CISTPL_DEVICE type=null speed=null 45 * 01 03 00 00 ff 46 * CISTPL_VERS_1 47 * 15 24 05 00 33 43 4f 4d 00 33 43 52 57 42 36 30 48 * 2d 41 00 42 6c 75 65 74 6f 6f 74 68 20 50 43 20 49 * 43 61 72 64 00 ff 50 * CISTPL_MANFID 51 * 20 04 01 01 40 00 52 * CISTPL_FUNCID 53 * 21 02 02 01 54 * CISTPL_CONFIG 55 * 1a 06 05 30 20 03 17 00 56 * CISTPL_CFTABLE_ENTRY 57 * 1b 09 f0 41 18 a0 40 07 30 ff ff 58 * unhandled CISTPL 80 59 * 80 0a 02 01 40 00 2d 00 00 00 00 ff 60 * CISTPL_NO_LINK 61 * 14 00 62 * CISTPL_END 63 * ff 64 * pcmcia1: CIS version PC Card Standard 5.0 65 * pcmcia1: CIS info: 3COM, 3CRWB60-A, Bluetooth PC Card 66 * pcmcia1: Manufacturer code 0x101, product 0x40 67 * pcmcia1: function 0: serial port, ccr addr 320 mask 17 68 * pcmcia1: function 0, config table entry 48: I/O card; irq mask ffff; iomask 0, iospace 0-7; rdybsy_active io8 irqlevel 69 */ 70 71 #include <sys/cdefs.h> 72 __KERNEL_RCSID(0, "$NetBSD: bt3c.c,v 1.13 2007/11/03 17:41:04 plunky Exp $"); 73 74 #include <sys/param.h> 75 #include <sys/device.h> 76 #include <sys/mbuf.h> 77 #include <sys/systm.h> 78 79 #include <sys/cpu.h> 80 #include <sys/bus.h> 81 #include <sys/intr.h> 82 83 #include <dev/pcmcia/pcmciareg.h> 84 #include <dev/pcmcia/pcmciavar.h> 85 #include <dev/pcmcia/pcmciadevs.h> 86 87 #include <netbt/bluetooth.h> 88 #include <netbt/hci.h> 89 90 #include <dev/firmload.h> 91 #define BT3C_FIRMWARE_FILE "BT3CPCC.bin" 92 93 /************************************************************************** 94 * 95 * bt3c autoconfig glue 96 */ 97 98 struct bt3c_softc { 99 device_t sc_dev; 100 101 struct pcmcia_function *sc_pf; /* our PCMCIA function */ 102 struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */ 103 int sc_iow; /* our i/o window */ 104 void *sc_powerhook; /* power hook descriptor */ 105 int sc_flags; /* flags */ 106 107 struct hci_unit sc_unit; /* Bluetooth HCI Unit */ 108 109 /* hardware interrupt */ 110 void *sc_intr; /* cookie */ 111 int sc_state; /* receive state */ 112 int sc_want; /* how much we want */ 113 struct mbuf *sc_rxp; /* incoming packet */ 114 struct mbuf *sc_txp; /* outgoing packet */ 115 }; 116 117 /* sc_state */ /* receiving */ 118 #define BT3C_RECV_PKT_TYPE 0 /* packet type */ 119 #define BT3C_RECV_ACL_HDR 1 /* acl header */ 120 #define BT3C_RECV_SCO_HDR 2 /* sco header */ 121 #define BT3C_RECV_EVENT_HDR 3 /* event header */ 122 #define BT3C_RECV_ACL_DATA 4 /* acl packet data */ 123 #define BT3C_RECV_SCO_DATA 5 /* sco packet data */ 124 #define BT3C_RECV_EVENT_DATA 6 /* event packet data */ 125 126 /* sc_flags */ 127 #define BT3C_SLEEPING (1 << 0) /* but not with the fishes */ 128 129 static int bt3c_match(device_t, struct cfdata *, void *); 130 static void bt3c_attach(device_t, device_t, void *); 131 static int bt3c_detach(device_t, int); 132 static void bt3c_power(int, void *); 133 134 CFATTACH_DECL_NEW(bt3c, sizeof(struct bt3c_softc), 135 bt3c_match, bt3c_attach, bt3c_detach, NULL); 136 137 static void bt3c_start(struct hci_unit *); 138 static int bt3c_enable(struct hci_unit *); 139 static void bt3c_disable(struct hci_unit *); 140 141 /************************************************************************** 142 * 143 * Hardware Definitions & IO routines 144 * 145 * I made up the names for most of these defs since we dont have 146 * manufacturers recommendations, but I dont like raw numbers.. 147 * 148 * all hardware routines are running at IPL_TTY 149 * 150 */ 151 #define BT3C_ISR 0x7001 /* Interrupt Status Register */ 152 #define BT3C_ISR_RXRDY (1<<0) /* Device has data */ 153 #define BT3C_ISR_TXRDY (1<<1) /* Finished sending data */ 154 #define BT3C_ISR_ANTENNA (1<<5) /* Antenna position changed */ 155 156 #define BT3C_CSR 0x7002 /* Card Status Register */ 157 #define BT3C_CSR_ANTENNA (1<<4) /* Antenna position */ 158 159 #define BT3C_TX_COUNT 0x7005 /* Tx fifo contents */ 160 #define BT3C_TX_FIFO 0x7080 /* Transmit Fifo */ 161 #define BT3C_RX_COUNT 0x7006 /* Rx fifo contents */ 162 #define BT3C_RX_FIFO 0x7480 /* Receive Fifo */ 163 #define BT3C_FIFO_SIZE 256 164 165 /* IO Registers */ 166 #define BT3C_IOR_DATA_L 0x00 /* data low byte */ 167 #define BT3C_IOR_DATA_H 0x01 /* data high byte */ 168 #define BT3C_IOR_ADDR_L 0x02 /* address low byte */ 169 #define BT3C_IOR_ADDR_H 0x03 /* address high byte */ 170 #define BT3C_IOR_CNTL 0x04 /* control byte */ 171 #define BT3C_IOR_CNTL_BOOT (1<<6) /* Boot Card */ 172 #define BT3C_IOR_CNTL_INTR (1<<7) /* Interrupt Requested */ 173 #define BT3C_IOR_LEN 0x05 174 175 static inline uint16_t 176 bt3c_get(struct bt3c_softc *sc) 177 { 178 uint16_t data; 179 180 bus_space_barrier(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 181 0, BT3C_IOR_LEN, BUS_SPACE_BARRIER_READ); 182 data = bus_space_read_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 183 BT3C_IOR_DATA_L); 184 data |= bus_space_read_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 185 BT3C_IOR_DATA_H) << 8; 186 187 return data; 188 } 189 190 static inline void 191 bt3c_put(struct bt3c_softc *sc, uint16_t data) 192 { 193 194 bus_space_barrier(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 195 0, BT3C_IOR_LEN, BUS_SPACE_BARRIER_WRITE); 196 bus_space_write_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 197 BT3C_IOR_DATA_L, data & 0xff); 198 bus_space_write_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 199 BT3C_IOR_DATA_H, (data >> 8) & 0xff); 200 } 201 202 static inline uint8_t 203 bt3c_read_control(struct bt3c_softc *sc) 204 { 205 206 bus_space_barrier(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 207 0, BT3C_IOR_LEN, BUS_SPACE_BARRIER_READ); 208 return bus_space_read_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 209 BT3C_IOR_CNTL); 210 } 211 212 static inline void 213 bt3c_write_control(struct bt3c_softc *sc, uint8_t data) 214 { 215 216 bus_space_barrier(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 217 0, BT3C_IOR_LEN, BUS_SPACE_BARRIER_WRITE); 218 bus_space_write_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 219 BT3C_IOR_CNTL, data); 220 } 221 222 static inline void 223 bt3c_set_address(struct bt3c_softc *sc, uint16_t addr) 224 { 225 226 bus_space_barrier(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 227 0, BT3C_IOR_LEN, BUS_SPACE_BARRIER_WRITE); 228 bus_space_write_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 229 BT3C_IOR_ADDR_L, addr & 0xff); 230 bus_space_write_1(sc->sc_pcioh.iot, sc->sc_pcioh.ioh, 231 BT3C_IOR_ADDR_H, (addr >> 8) & 0xff); 232 } 233 234 static inline uint16_t 235 bt3c_read(struct bt3c_softc *sc, uint16_t addr) 236 { 237 238 bt3c_set_address(sc, addr); 239 return bt3c_get(sc); 240 } 241 242 static inline void 243 bt3c_write(struct bt3c_softc *sc, uint16_t addr, uint16_t data) 244 { 245 246 bt3c_set_address(sc, addr); 247 bt3c_put(sc, data); 248 } 249 250 /* 251 * receive incoming data from device, store in mbuf chain and 252 * pass on complete packets to bt device 253 */ 254 static void 255 bt3c_receive(struct bt3c_softc *sc) 256 { 257 struct mbuf *m = sc->sc_rxp; 258 int space = 0; 259 uint16_t count; 260 uint8_t b; 261 262 /* 263 * If we already started a packet, find the 264 * trailing end of it. 265 */ 266 if (m) { 267 while (m->m_next) 268 m = m->m_next; 269 270 space = M_TRAILINGSPACE(m); 271 } 272 273 count = bt3c_read(sc, BT3C_RX_COUNT); 274 bt3c_set_address(sc, BT3C_RX_FIFO); 275 276 while (count > 0) { 277 if (space == 0) { 278 if (m == NULL) { 279 /* new packet */ 280 MGETHDR(m, M_DONTWAIT, MT_DATA); 281 if (m == NULL) { 282 printf("%s: out of memory\n", 283 device_xname(sc->sc_dev)); 284 ++sc->sc_unit.hci_stats.err_rx; 285 goto out; /* (lost sync) */ 286 } 287 288 sc->sc_rxp = m; 289 m->m_pkthdr.len = m->m_len = 0; 290 space = MHLEN; 291 292 sc->sc_state = BT3C_RECV_PKT_TYPE; 293 sc->sc_want = 1; 294 } else { 295 /* extend mbuf */ 296 MGET(m->m_next, M_DONTWAIT, MT_DATA); 297 if (m->m_next == NULL) { 298 printf("%s: out of memory\n", 299 device_xname(sc->sc_dev)); 300 ++sc->sc_unit.hci_stats.err_rx; 301 goto out; /* (lost sync) */ 302 } 303 304 m = m->m_next; 305 m->m_len = 0; 306 space = MLEN; 307 308 if (sc->sc_want > MINCLSIZE) { 309 MCLGET(m, M_DONTWAIT); 310 if (m->m_flags & M_EXT) 311 space = MCLBYTES; 312 } 313 } 314 } 315 316 b = bt3c_get(sc); 317 mtod(m, uint8_t *)[m->m_len++] = b; 318 count--; 319 space--; 320 sc->sc_rxp->m_pkthdr.len++; 321 sc->sc_unit.hci_stats.byte_rx++; 322 323 sc->sc_want--; 324 if (sc->sc_want > 0) 325 continue; /* want more */ 326 327 switch (sc->sc_state) { 328 case BT3C_RECV_PKT_TYPE: /* Got packet type */ 329 330 switch (b) { 331 case HCI_ACL_DATA_PKT: 332 sc->sc_state = BT3C_RECV_ACL_HDR; 333 sc->sc_want = sizeof(hci_acldata_hdr_t) - 1; 334 break; 335 336 case HCI_SCO_DATA_PKT: 337 sc->sc_state = BT3C_RECV_SCO_HDR; 338 sc->sc_want = sizeof(hci_scodata_hdr_t) - 1; 339 break; 340 341 case HCI_EVENT_PKT: 342 sc->sc_state = BT3C_RECV_EVENT_HDR; 343 sc->sc_want = sizeof(hci_event_hdr_t) - 1; 344 break; 345 346 default: 347 printf("%s: Unknown packet type=%#x!\n", 348 device_xname(sc->sc_dev), b); 349 ++sc->sc_unit.hci_stats.err_rx; 350 m_freem(sc->sc_rxp); 351 sc->sc_rxp = NULL; 352 goto out; /* (lost sync) */ 353 } 354 355 break; 356 357 /* 358 * we assume (correctly of course :) that the packet headers 359 * all fit into a single pkthdr mbuf 360 */ 361 case BT3C_RECV_ACL_HDR: /* Got ACL Header */ 362 sc->sc_state = BT3C_RECV_ACL_DATA; 363 sc->sc_want = mtod(m, hci_acldata_hdr_t *)->length; 364 sc->sc_want = le16toh(sc->sc_want); 365 break; 366 367 case BT3C_RECV_SCO_HDR: /* Got SCO Header */ 368 sc->sc_state = BT3C_RECV_SCO_DATA; 369 sc->sc_want = mtod(m, hci_scodata_hdr_t *)->length; 370 break; 371 372 case BT3C_RECV_EVENT_HDR: /* Got Event Header */ 373 sc->sc_state = BT3C_RECV_EVENT_DATA; 374 sc->sc_want = mtod(m, hci_event_hdr_t *)->length; 375 break; 376 377 case BT3C_RECV_ACL_DATA: /* ACL Packet Complete */ 378 hci_input_acl(&sc->sc_unit, sc->sc_rxp); 379 sc->sc_unit.hci_stats.acl_rx++; 380 sc->sc_rxp = m = NULL; 381 space = 0; 382 break; 383 384 case BT3C_RECV_SCO_DATA: /* SCO Packet Complete */ 385 hci_input_sco(&sc->sc_unit, sc->sc_rxp); 386 sc->sc_unit.hci_stats.sco_rx++; 387 sc->sc_rxp = m = NULL; 388 space = 0; 389 break; 390 391 case BT3C_RECV_EVENT_DATA: /* Event Packet Complete */ 392 sc->sc_unit.hci_stats.evt_rx++; 393 hci_input_event(&sc->sc_unit, sc->sc_rxp); 394 sc->sc_rxp = m = NULL; 395 space = 0; 396 break; 397 398 default: 399 panic("%s: invalid state %d!\n", 400 device_xname(sc->sc_dev), sc->sc_state); 401 } 402 } 403 404 out: 405 bt3c_write(sc, BT3C_RX_COUNT, 0x0000); 406 } 407 408 /* 409 * write data from current packet to Transmit FIFO. 410 * restart when done. 411 */ 412 static void 413 bt3c_transmit(struct bt3c_softc *sc) 414 { 415 struct mbuf *m; 416 int count, rlen; 417 uint8_t *rptr; 418 419 m = sc->sc_txp; 420 if (m == NULL) { 421 sc->sc_unit.hci_flags &= ~BTF_XMIT; 422 bt3c_start(&sc->sc_unit); 423 return; 424 } 425 426 count = 0; 427 rlen = 0; 428 rptr = mtod(m, uint8_t *); 429 430 bt3c_set_address(sc, BT3C_TX_FIFO); 431 432 for(;;) { 433 if (rlen >= m->m_len) { 434 m = m->m_next; 435 if (m == NULL) { 436 m = sc->sc_txp; 437 sc->sc_txp = NULL; 438 439 if (M_GETCTX(m, void *) == NULL) 440 m_freem(m); 441 else 442 hci_complete_sco(&sc->sc_unit, m); 443 444 break; 445 } 446 447 rlen = 0; 448 rptr = mtod(m, uint8_t *); 449 continue; 450 } 451 452 if (count >= BT3C_FIFO_SIZE) { 453 m_adj(m, rlen); 454 break; 455 } 456 457 bt3c_put(sc, *rptr++); 458 rlen++; 459 count++; 460 } 461 462 bt3c_write(sc, BT3C_TX_COUNT, count); 463 sc->sc_unit.hci_stats.byte_tx += count; 464 } 465 466 /* 467 * interrupt routine 468 */ 469 static int 470 bt3c_intr(void *arg) 471 { 472 struct bt3c_softc *sc = arg; 473 uint16_t control, isr; 474 475 control = bt3c_read_control(sc); 476 if (control & BT3C_IOR_CNTL_INTR) { 477 isr = bt3c_read(sc, BT3C_ISR); 478 if ((isr & 0xff) == 0x7f) { 479 printf("%s: bt3c_intr got strange ISR=%04x\n", 480 device_xname(sc->sc_dev), isr); 481 } else if ((isr & 0xff) != 0xff) { 482 483 if (isr & BT3C_ISR_RXRDY) 484 bt3c_receive(sc); 485 486 if (isr & BT3C_ISR_TXRDY) 487 bt3c_transmit(sc); 488 489 #ifdef DIAGNOSTIC 490 if (isr & BT3C_ISR_ANTENNA) { 491 if (bt3c_read(sc, BT3C_CSR) & BT3C_CSR_ANTENNA) 492 printf("%s: Antenna Out\n", 493 device_xname(sc->sc_dev)); 494 else 495 printf("%s: Antenna In\n", 496 device_xname(sc->sc_dev)); 497 } 498 #endif 499 500 bt3c_write(sc, BT3C_ISR, 0x0000); 501 bt3c_write_control(sc, control); 502 503 return 1; /* handled */ 504 } 505 } 506 507 return 0; /* not handled */ 508 } 509 510 /* 511 * load firmware for the device 512 * 513 * The firmware file is a plain ASCII file in the Motorola S-Record format, 514 * with lines in the format: 515 * 516 * S<Digit><Len><Address><Data1><Data2>...<DataN><Checksum> 517 * 518 * <Digit>: 0 header 519 * 3 data record (4 byte address) 520 * 7 boot record (4 byte address) 521 * 522 * <Len>: 1 byte, and is the number of bytes in the rest of the line 523 * <Address>: 4 byte address (only 2 bytes are valid for bt3c I think) 524 * <Data>: 2 byte data word to be written to the address 525 * <Checksum>: checksum of all bytes in the line including <Len> 526 * 527 * all bytes are in hexadecimal 528 */ 529 static inline int32_t 530 hex(const uint8_t *p, int n) 531 { 532 uint32_t val = 0; 533 534 while (n > 0) { 535 val <<= 4; 536 537 if ('0' <= *p && *p <= '9') 538 val += (*p - '0'); 539 else if ('a' <= *p && *p <= 'f') 540 val += (*p - 'a' + 0xa); 541 else if ('A' <= *p && *p <= 'F') 542 val += (*p - 'A' + 0xa); 543 else 544 return -1; 545 546 p++; 547 n--; 548 } 549 550 return val; 551 } 552 553 static int 554 bt3c_load_firmware(struct bt3c_softc *sc) 555 { 556 uint8_t *buf, *line, *next, *p; 557 int32_t addr, data; 558 int err, sum, len; 559 firmware_handle_t fh; 560 struct cfdata *cf = device_cfdata(sc->sc_dev); 561 size_t size; 562 563 err = firmware_open(cf->cf_name, 564 BT3C_FIRMWARE_FILE, &fh); 565 if (err) { 566 printf("%s: Cannot open firmware %s/%s\n", 567 device_xname(sc->sc_dev), cf->cf_name, BT3C_FIRMWARE_FILE); 568 return err; 569 } 570 571 size = (size_t)firmware_get_size(fh); 572 #ifdef DIAGNOSTIC 573 if (size > 10 * 1024) { /* sanity check */ 574 printf("%s: firmware file seems WAY too big!\n", 575 device_xname(sc->sc_dev)); 576 firmware_close(fh); 577 return EFBIG; 578 } 579 #endif 580 581 buf = firmware_malloc(size); 582 KASSERT(buf != NULL); 583 584 err = firmware_read(fh, 0, buf, size); 585 if (err) { 586 printf("%s: Firmware read failed (%d)\n", 587 device_xname(sc->sc_dev), err); 588 goto out; 589 } 590 591 /* Reset */ 592 bt3c_write(sc, 0x8040, 0x0404); 593 bt3c_write(sc, 0x8040, 0x0400); 594 DELAY(1); 595 bt3c_write(sc, 0x8040, 0x0404); 596 DELAY(17); 597 598 next = buf; 599 err = EFTYPE; 600 601 while (next < buf + size) { 602 line = next; 603 604 while (*next != '\r' && *next != '\n') { 605 if (next >= buf + size) 606 goto out; 607 608 next++; 609 } 610 611 /* 14 covers address and checksum minimum */ 612 if (next - line < 14) 613 goto out; 614 615 if (line[0] != 'S') 616 goto out; 617 618 /* verify line length */ 619 len = hex(line + 2, 2); 620 if (len < 0 || next - line != len * 2 + 4) 621 goto out; 622 623 /* checksum the line */ 624 sum = 0; 625 for (p = line + 2 ; p < next ; p += 2) 626 sum += hex(p, 2); 627 628 if ((sum & 0xff) != 0xff) 629 goto out; 630 631 /* extract relevant data */ 632 switch (line[1]) { 633 case '0': 634 /* we ignore the header */ 635 break; 636 637 case '3': 638 /* find number of data words */ 639 len = (len - 5) / 2; 640 if (len > 15) 641 goto out; 642 643 addr = hex(line + 8, 4); 644 if (addr < 0) 645 goto out; 646 647 bt3c_set_address(sc, addr); 648 649 for (p = line + 12 ; p + 4 < next ; p += 4) { 650 data = hex(p, 4); 651 if (data < 0) 652 goto out; 653 654 bt3c_put(sc, data); 655 } 656 break; 657 658 case '7': 659 /* 660 * for some reason we ignore this record 661 * and boot from 0x3000 which happens to 662 * be the first record in the file. 663 */ 664 break; 665 666 default: 667 goto out; 668 } 669 670 /* skip to start of next line */ 671 while (next < buf + size && (*next == '\r' || *next == '\n')) 672 next++; 673 } 674 675 err = 0; 676 DELAY(17); 677 678 /* Boot */ 679 bt3c_set_address(sc, 0x3000); 680 bt3c_write_control(sc, (bt3c_read_control(sc) | BT3C_IOR_CNTL_BOOT)); 681 DELAY(17); 682 683 /* Clear Registers */ 684 bt3c_write(sc, BT3C_RX_COUNT, 0x0000); 685 bt3c_write(sc, BT3C_TX_COUNT, 0x0000); 686 bt3c_write(sc, BT3C_ISR, 0x0000); 687 DELAY(1000); 688 689 out: 690 firmware_free(buf, size); 691 firmware_close(fh); 692 return err; 693 } 694 695 /************************************************************************** 696 * 697 * bt device callbacks (all called at IPL_TTY) 698 */ 699 700 /* 701 * start sending on bt3c 702 * this should be called only when BTF_XMIT is not set, and 703 * we only send cmd packets that are clear to send 704 */ 705 static void 706 bt3c_start(struct hci_unit *unit) 707 { 708 struct bt3c_softc *sc = unit->hci_softc; 709 struct mbuf *m; 710 711 KASSERT((unit->hci_flags & BTF_XMIT) == 0); 712 KASSERT(sc->sc_txp == NULL); 713 714 if (MBUFQ_FIRST(&unit->hci_cmdq)) { 715 MBUFQ_DEQUEUE(&unit->hci_cmdq, m); 716 unit->hci_stats.cmd_tx++; 717 M_SETCTX(m, NULL); 718 goto start; 719 } 720 721 if (MBUFQ_FIRST(&unit->hci_scotxq)) { 722 MBUFQ_DEQUEUE(&unit->hci_scotxq, m); 723 unit->hci_stats.sco_tx++; 724 goto start; 725 } 726 727 if (MBUFQ_FIRST(&unit->hci_acltxq)) { 728 MBUFQ_DEQUEUE(&unit->hci_acltxq, m); 729 unit->hci_stats.acl_tx++; 730 M_SETCTX(m, NULL); 731 goto start; 732 } 733 734 /* Nothing to send */ 735 return; 736 737 start: 738 sc->sc_txp = m; 739 unit->hci_flags |= BTF_XMIT; 740 bt3c_transmit(sc); 741 } 742 743 /* 744 * enable device 745 * turn on card 746 * load firmware 747 * establish interrupts 748 */ 749 static int 750 bt3c_enable(struct hci_unit *unit) 751 { 752 struct bt3c_softc *sc = unit->hci_softc; 753 int err; 754 755 if (unit->hci_flags & BTF_RUNNING) 756 return 0; 757 758 sc->sc_intr = pcmcia_intr_establish(sc->sc_pf, IPL_TTY, bt3c_intr, sc); 759 if (sc->sc_intr == NULL) { 760 err = EIO; 761 goto bad; 762 } 763 764 err = pcmcia_function_enable(sc->sc_pf); 765 if (err) 766 goto bad1; 767 768 err = bt3c_load_firmware(sc); 769 if (err) 770 goto bad2; 771 772 unit->hci_flags |= BTF_RUNNING; 773 unit->hci_flags &= ~BTF_XMIT; 774 775 /* 776 * 3Com card will send a Command_Status packet when its 777 * ready to receive commands 778 */ 779 unit->hci_num_cmd_pkts = 0; 780 781 return 0; 782 783 bad2: 784 pcmcia_function_disable(sc->sc_pf); 785 bad1: 786 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_intr); 787 sc->sc_intr = NULL; 788 bad: 789 return err; 790 } 791 792 /* 793 * disable device 794 * shut down card 795 * disestablish interrupts 796 * free held packets 797 */ 798 static void 799 bt3c_disable(struct hci_unit *unit) 800 { 801 struct bt3c_softc *sc = unit->hci_softc; 802 803 if ((unit->hci_flags & BTF_RUNNING) == 0) 804 return; 805 806 pcmcia_function_disable(sc->sc_pf); 807 808 if (sc->sc_intr) { 809 pcmcia_intr_disestablish(sc->sc_pf, sc->sc_intr); 810 sc->sc_intr = NULL; 811 } 812 813 if (sc->sc_rxp) { 814 m_freem(sc->sc_rxp); 815 sc->sc_rxp = NULL; 816 } 817 818 if (sc->sc_txp) { 819 m_freem(sc->sc_txp); 820 sc->sc_txp = NULL; 821 } 822 823 unit->hci_flags &= ~BTF_RUNNING; 824 } 825 826 /************************************************************************** 827 * 828 * bt3c PCMCIA autoconfig glue 829 */ 830 831 static int 832 bt3c_match(device_t parent, struct cfdata *match, void *aux) 833 { 834 struct pcmcia_attach_args *pa = aux; 835 836 if (pa->manufacturer == PCMCIA_VENDOR_3COM && 837 pa->product == PCMCIA_PRODUCT_3COM_3CRWB6096) 838 return 10; /* 'com' also claims this, so trump them */ 839 840 return 0; 841 } 842 843 static void 844 bt3c_attach(device_t parent, device_t self, void *aux) 845 { 846 struct bt3c_softc *sc = device_private(self); 847 struct pcmcia_attach_args *pa = aux; 848 struct pcmcia_config_entry *cfe; 849 850 sc->sc_dev = self; 851 sc->sc_pf = pa->pf; 852 853 /* Find a PCMCIA config entry we can use */ 854 SIMPLEQ_FOREACH(cfe, &pa->pf->cfe_head, cfe_list) { 855 if (cfe->num_memspace != 0) 856 continue; 857 858 if (cfe->num_iospace != 1) 859 continue; 860 861 if (pcmcia_io_alloc(pa->pf, cfe->iospace[0].start, 862 cfe->iospace[0].length, 0, &sc->sc_pcioh) == 0) 863 break; 864 } 865 866 if (cfe == 0) { 867 aprint_error("bt3c_attach: cannot allocate io space\n"); 868 goto no_config_entry; 869 } 870 871 /* Initialise it */ 872 pcmcia_function_init(pa->pf, cfe); 873 874 /* Map in the io space */ 875 if (pcmcia_io_map(pa->pf, PCMCIA_WIDTH_AUTO, 876 &sc->sc_pcioh, &sc->sc_iow)) { 877 aprint_error("bt3c_attach: cannot map io space\n"); 878 goto iomap_failed; 879 } 880 881 /* Attach Bluetooth unit */ 882 sc->sc_unit.hci_softc = sc; 883 sc->sc_unit.hci_devname = device_xname(sc->sc_dev); 884 sc->sc_unit.hci_enable = bt3c_enable; 885 sc->sc_unit.hci_disable = bt3c_disable; 886 sc->sc_unit.hci_start_cmd = bt3c_start; 887 sc->sc_unit.hci_start_acl = bt3c_start; 888 sc->sc_unit.hci_start_sco = bt3c_start; 889 sc->sc_unit.hci_ipl = makeiplcookie(IPL_TTY); 890 hci_attach(&sc->sc_unit); 891 892 /* establish a power change hook */ 893 sc->sc_powerhook = powerhook_establish(device_xname(sc->sc_dev), 894 bt3c_power, sc); 895 return; 896 897 iomap_failed: 898 /* unmap io space */ 899 pcmcia_io_free(pa->pf, &sc->sc_pcioh); 900 901 no_config_entry: 902 sc->sc_iow = -1; 903 } 904 905 static int 906 bt3c_detach(device_t self, int flags) 907 { 908 struct bt3c_softc *sc = device_private(self); 909 int err = 0; 910 911 bt3c_disable(&sc->sc_unit); 912 913 if (sc->sc_powerhook) { 914 powerhook_disestablish(sc->sc_powerhook); 915 sc->sc_powerhook = NULL; 916 } 917 918 hci_detach(&sc->sc_unit); 919 920 if (sc->sc_iow != -1) { 921 pcmcia_io_unmap(sc->sc_pf, sc->sc_iow); 922 pcmcia_io_free(sc->sc_pf, &sc->sc_pcioh); 923 sc->sc_iow = -1; 924 } 925 926 return err; 927 } 928 929 static void 930 bt3c_power(int why, void *arg) 931 { 932 struct bt3c_softc *sc = arg; 933 934 switch(why) { 935 case PWR_SUSPEND: 936 case PWR_STANDBY: 937 if (sc->sc_unit.hci_flags & BTF_RUNNING) { 938 hci_detach(&sc->sc_unit); 939 940 sc->sc_flags |= BT3C_SLEEPING; 941 printf_nolog("%s: sleeping\n", device_xname(sc->sc_dev)); 942 } 943 break; 944 945 case PWR_RESUME: 946 if (sc->sc_flags & BT3C_SLEEPING) { 947 printf_nolog("%s: waking up\n", device_xname(sc->sc_dev)); 948 sc->sc_flags &= ~BT3C_SLEEPING; 949 950 memset(&sc->sc_unit, 0, sizeof(sc->sc_unit)); 951 sc->sc_unit.hci_softc = sc; 952 sc->sc_unit.hci_devname = device_xname(sc->sc_dev); 953 sc->sc_unit.hci_enable = bt3c_enable; 954 sc->sc_unit.hci_disable = bt3c_disable; 955 sc->sc_unit.hci_start_cmd = bt3c_start; 956 sc->sc_unit.hci_start_acl = bt3c_start; 957 sc->sc_unit.hci_start_sco = bt3c_start; 958 sc->sc_unit.hci_ipl = makeiplcookie(IPL_TTY); 959 hci_attach(&sc->sc_unit); 960 } 961 break; 962 963 case PWR_SOFTSUSPEND: 964 case PWR_SOFTSTANDBY: 965 case PWR_SOFTRESUME: 966 break; 967 } 968 } 969
Indexes created Wed Oct 01 19:09:53 GMT 2025