sys/netgraph/bluetooth/drivers/bt3c/ng_bt3c_pccard.c

   1 /*
   2  * ng_bt3c_pccard.c
   3  */
   4
   5 /*-
   6  * Copyright (c) 2001-2002 Maksim Yevmenkin <m_evmenkin@yahoo.com>
   7  * All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  * 2. Redistributions in binary form must reproduce the above copyright
  15  *    notice, this list of conditions and the following disclaimer in the
  16  *    documentation and/or other materials provided with the distribution.
  17  *
  18  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
  19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  21  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  28  * SUCH DAMAGE.
  29  *
  30  * $Id: ng_bt3c_pccard.c,v 1.5 2003/04/01 18:15:21 max Exp $
  31  * $FreeBSD$
  32  *
  33  * XXX XXX XX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
  34  *
  35  * Based on information obrained from: Jose Orlando Pereira <jop@di.uminho.pt>
  36  * and disassembled w2k driver.
  37  *
  38  * XXX XXX XX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX XXX
  39  *
  40  */
  41
  42 #include <sys/param.h>
  43 #include <sys/systm.h>
  44
  45 #include <sys/bus.h>
  46 #include <machine/bus.h>
  47
  48 #include <sys/conf.h>
  49 #include <sys/endian.h>
  50 #include <sys/interrupt.h>
  51 #include <sys/kernel.h>
  52 #include <sys/mbuf.h>
  53 #include <sys/module.h>
  54
  55 #include <machine/resource.h>
  56 #include <sys/rman.h>
  57
  58 #include <sys/socket.h>
  59 #include <net/if.h>
  60 #include <net/if_var.h>
  61
  62 #include <dev/pccard/pccardreg.h>
  63 #include <dev/pccard/pccardvar.h>
  64 #include "pccarddevs.h"
  65
  66 #include <netgraph/ng_message.h>
  67 #include <netgraph/netgraph.h>
  68 #include <netgraph/ng_parse.h>
  69 #include <netgraph/bluetooth/include/ng_bluetooth.h>
  70 #include <netgraph/bluetooth/include/ng_hci.h>
  71 #include <netgraph/bluetooth/include/ng_bt3c.h>
  72 #include <netgraph/bluetooth/drivers/bt3c/ng_bt3c_var.h>
  73
  74 /* Netgraph methods */
  75 static ng_constructor_t ng_bt3c_constructor;
  76 static ng_shutdown_t    ng_bt3c_shutdown;
  77 static ng_newhook_t     ng_bt3c_newhook;
  78 static ng_connect_t     ng_bt3c_connect;
  79 static ng_disconnect_t  ng_bt3c_disconnect;
  80 static ng_rcvmsg_t      ng_bt3c_rcvmsg;
  81 static ng_rcvdata_t     ng_bt3c_rcvdata;
  82
  83 /* PCMCIA driver methods */
  84 static int      bt3c_pccard_probe       (device_t);
  85 static int      bt3c_pccard_attach      (device_t);
  86 static int      bt3c_pccard_detach      (device_t);
  87
  88 static void     bt3c_intr               (void *);
  89 static void     bt3c_receive            (bt3c_softc_p);
  90
  91 static void     bt3c_swi_intr           (void *);
  92 static void     bt3c_forward            (node_p, hook_p, void *, int);
  93 static void     bt3c_send               (node_p, hook_p, void *, int);
  94
  95 static void     bt3c_download_firmware  (bt3c_softc_p, char const *, int);
  96
  97 #define bt3c_set_address(sc, address) \
  98 do { \
  99         bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_ADDR_L, ((address) & 0xff)); \
 100         bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_ADDR_H, (((address) >> 8) & 0xff)); \
 101 } while (0)
 102
 103 #define bt3c_read_data(sc, data) \
 104 do { \
 105         (data)  = bus_space_read_1((sc)->iot, (sc)->ioh, BT3C_DATA_L); \
 106         (data) |= ((bus_space_read_1((sc)->iot, (sc)->ioh, BT3C_DATA_H) & 0xff) << 8); \
 107 } while (0)
 108
 109 #define bt3c_write_data(sc, data) \
 110 do { \
 111         bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_DATA_L, ((data) & 0xff)); \
 112         bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_DATA_H, (((data) >> 8) & 0xff)); \
 113 } while (0)
 114
 115 #define bt3c_read_control(sc, data) \
 116 do { \
 117         (data) = bus_space_read_1((sc)->iot, (sc)->ioh, BT3C_CONTROL); \
 118 } while (0)
 119
 120 #define bt3c_write_control(sc, data) \
 121 do { \
 122         bus_space_write_1((sc)->iot, (sc)->ioh, BT3C_CONTROL, (data)); \
 123 } while (0)
 124
 125 #define bt3c_read(sc, address, data) \
 126 do { \
 127         bt3c_set_address((sc), (address)); \
 128         bt3c_read_data((sc), (data)); \
 129 } while(0)
 130
 131 #define bt3c_write(sc, address, data) \
 132 do { \
 133         bt3c_set_address((sc), (address)); \
 134         bt3c_write_data((sc), (data)); \
 135 } while(0)
 136
 137 static MALLOC_DEFINE(M_BT3C, "bt3c", "bt3c data structures");
 138
 139 /****************************************************************************
 140  ****************************************************************************
 141  **                           Netgraph specific
 142  ****************************************************************************
 143  ****************************************************************************/
 144
 145 /*
 146  * Netgraph node type
 147  */
 148
 149 /* Queue length */
 150 static const struct ng_parse_struct_field       ng_bt3c_node_qlen_type_fields[] =
 151 {
 152         { "queue", &ng_parse_int32_type, },
 153         { "qlen",  &ng_parse_int32_type, },
 154         { NULL, }
 155 };
 156 static const struct ng_parse_type               ng_bt3c_node_qlen_type = {
 157         &ng_parse_struct_type,
 158         &ng_bt3c_node_qlen_type_fields
 159 };
 160
 161 /* Stat info */
 162 static const struct ng_parse_struct_field       ng_bt3c_node_stat_type_fields[] =
 163 {
 164         { "pckts_recv", &ng_parse_uint32_type, },
 165         { "bytes_recv", &ng_parse_uint32_type, },
 166         { "pckts_sent", &ng_parse_uint32_type, },
 167         { "bytes_sent", &ng_parse_uint32_type, },
 168         { "oerrors",    &ng_parse_uint32_type, },
 169         { "ierrors",    &ng_parse_uint32_type, },
 170         { NULL, }
 171 };
 172 static const struct ng_parse_type               ng_bt3c_node_stat_type = {
 173         &ng_parse_struct_type,
 174         &ng_bt3c_node_stat_type_fields
 175 };
 176
 177 static const struct ng_cmdlist  ng_bt3c_cmdlist[] = {
 178 {
 179         NGM_BT3C_COOKIE,
 180         NGM_BT3C_NODE_GET_STATE,
 181         "get_state",
 182         NULL,
 183         &ng_parse_uint16_type
 184 },
 185 {
 186         NGM_BT3C_COOKIE,
 187         NGM_BT3C_NODE_SET_DEBUG,
 188         "set_debug",
 189         &ng_parse_uint16_type,
 190         NULL
 191 },
 192 {
 193         NGM_BT3C_COOKIE,
 194         NGM_BT3C_NODE_GET_DEBUG,
 195         "get_debug",
 196         NULL,
 197         &ng_parse_uint16_type
 198 },
 199 {
 200         NGM_BT3C_COOKIE,
 201         NGM_BT3C_NODE_GET_QLEN,
 202         "get_qlen",
 203         NULL,
 204         &ng_bt3c_node_qlen_type
 205 },
 206 {
 207         NGM_BT3C_COOKIE,
 208         NGM_BT3C_NODE_SET_QLEN,
 209         "set_qlen",
 210         &ng_bt3c_node_qlen_type,
 211         NULL
 212 },
 213 {
 214         NGM_BT3C_COOKIE,
 215         NGM_BT3C_NODE_GET_STAT,
 216         "get_stat",
 217         NULL,
 218         &ng_bt3c_node_stat_type
 219 },
 220 {
 221         NGM_BT3C_COOKIE,
 222         NGM_BT3C_NODE_RESET_STAT,
 223         "reset_stat",
 224         NULL,
 225         NULL
 226 },
 227 { 0, }
 228 };
 229
 230 static struct ng_type   typestruct = {
 231         .version =      NG_ABI_VERSION,
 232         .name =         NG_BT3C_NODE_TYPE,
 233         .constructor =  ng_bt3c_constructor,
 234         .rcvmsg =       ng_bt3c_rcvmsg,
 235         .shutdown =     ng_bt3c_shutdown,
 236         .newhook =      ng_bt3c_newhook,
 237         .connect =      ng_bt3c_connect,
 238         .rcvdata =      ng_bt3c_rcvdata,
 239         .disconnect =   ng_bt3c_disconnect,
 240         .cmdlist =      ng_bt3c_cmdlist
 241 };
 242
 243 /*
 244  * Netgraph node constructor. Do not allow to create node of this type.
 245  */
 246
 247 static int
 248 ng_bt3c_constructor(node_p node)
 249 {
 250         return (EINVAL);
 251 } /* ng_bt3c_constructor */
 252
 253 /*
 254  * Netgraph node destructor. Destroy node only when device has been detached
 255  */
 256
 257 static int
 258 ng_bt3c_shutdown(node_p node)
 259 {
 260         bt3c_softc_p    sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
 261
 262         /* Let old node go */
 263         NG_NODE_SET_PRIVATE(node, NULL);
 264         NG_NODE_UNREF(node);
 265
 266         /* Create new fresh one if we are not going down */
 267         if (sc == NULL)
 268                 goto out;
 269
 270         /* Create new Netgraph node */
 271         if (ng_make_node_common(&typestruct, &sc->node) != 0) {
 272                 device_printf(sc->dev, "Could not create Netgraph node\n");
 273                 sc->node = NULL;
 274                 goto out;
 275         }
 276
 277         /* Name new Netgraph node */
 278         if (ng_name_node(sc->node,  device_get_nameunit(sc->dev)) != 0) {
 279                 device_printf(sc->dev, "Could not name Netgraph node\n");
 280                 NG_NODE_UNREF(sc->node);
 281                 sc->node = NULL;
 282                 goto out;
 283         }
 284
 285         NG_NODE_SET_PRIVATE(sc->node, sc);
 286 out:
 287         return (0);
 288 } /* ng_bt3c_shutdown */
 289
 290 /*
 291  * Create new hook. There can only be one.
 292  */
 293
 294 static int
 295 ng_bt3c_newhook(node_p node, hook_p hook, char const *name)
 296 {
 297         bt3c_softc_p    sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
 298
 299         if (strcmp(name, NG_BT3C_HOOK) != 0)
 300                 return (EINVAL);
 301
 302         if (sc->hook != NULL)
 303                 return (EISCONN);
 304
 305         sc->hook = hook;
 306
 307         return (0);
 308 } /* ng_bt3c_newhook */
 309
 310 /*
 311  * Connect hook. Say YEP, that's OK with me.
 312  */
 313
 314 static int
 315 ng_bt3c_connect(hook_p hook)
 316 {
 317         bt3c_softc_p    sc = (bt3c_softc_p) NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
 318
 319         if (hook != sc->hook) {
 320                 sc->hook = NULL;
 321                 return (EINVAL);
 322         }
 323
 324         /* set the hook into queueing mode (for incoming (from wire) packets) */
 325         NG_HOOK_FORCE_QUEUE(NG_HOOK_PEER(hook));
 326
 327         return (0);
 328 } /* ng_bt3c_connect */
 329
 330 /*
 331  * Disconnect hook
 332  */
 333
 334 static int
 335 ng_bt3c_disconnect(hook_p hook)
 336 {
 337         bt3c_softc_p    sc = (bt3c_softc_p) NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
 338
 339         /*
 340          * We need to check for sc != NULL because we can be called from
 341          * bt3c_pccard_detach() via ng_rmnode_self()
 342          */
 343
 344         if (sc != NULL) {
 345                 if (hook != sc->hook)
 346                         return (EINVAL);
 347
 348                 IF_DRAIN(&sc->inq);
 349                 IF_DRAIN(&sc->outq);
 350
 351                 sc->hook = NULL;
 352         }
 353
 354         return (0);
 355 } /* ng_bt3c_disconnect */
 356
 357 /*
 358  * Process control message
 359  */
 360
 361 static int
 362 ng_bt3c_rcvmsg(node_p node, item_p item, hook_p lasthook)
 363 {
 364         bt3c_softc_p     sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
 365         struct ng_mesg  *msg = NULL, *rsp = NULL;
 366         int              error = 0;
 367
 368         if (sc == NULL) {
 369                 NG_FREE_ITEM(item);
 370                 return (EHOSTDOWN);
 371         }
 372
 373         NGI_GET_MSG(item, msg);
 374
 375         switch (msg->header.typecookie) {
 376         case NGM_GENERIC_COOKIE:
 377                 switch (msg->header.cmd) {
 378                 case NGM_TEXT_STATUS:
 379                         NG_MKRESPONSE(rsp, msg, NG_TEXTRESPONSE, M_NOWAIT);
 380                         if (rsp == NULL)
 381                                 error = ENOMEM;
 382                         else
 383                                 snprintf(rsp->data, NG_TEXTRESPONSE,
 384                                         "Hook: %s\n" \
 385                                         "Flags: %#x\n" \
 386                                         "Debug: %d\n"  \
 387                                         "State: %d\n"  \
 388                                         "IncmQ: [len:%d,max:%d]\n" \
 389                                         "OutgQ: [len:%d,max:%d]\n",
 390                                         (sc->hook != NULL)? NG_BT3C_HOOK : "",
 391                                         sc->flags,
 392                                         sc->debug,
 393                                         sc->state,
 394                                         _IF_QLEN(&sc->inq), /* XXX */
 395                                         sc->inq.ifq_maxlen, /* XXX */
 396                                         _IF_QLEN(&sc->outq), /* XXX */
 397                                         sc->outq.ifq_maxlen /* XXX */
 398                                         );
 399                         break;
 400
 401                 default:
 402                         error = EINVAL;
 403                         break;
 404                 }
 405                 break;
 406
 407         case NGM_BT3C_COOKIE:
 408                 switch (msg->header.cmd) {
 409                 case NGM_BT3C_NODE_GET_STATE:
 410                         NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_state_ep),
 411                                 M_NOWAIT);
 412                         if (rsp == NULL)
 413                                 error = ENOMEM;
 414                         else
 415                                 *((ng_bt3c_node_state_ep *)(rsp->data)) =
 416                                         sc->state;
 417                         break;
 418
 419                 case NGM_BT3C_NODE_SET_DEBUG:
 420                         if (msg->header.arglen != sizeof(ng_bt3c_node_debug_ep))
 421                                 error = EMSGSIZE;
 422                         else
 423                                 sc->debug =
 424                                         *((ng_bt3c_node_debug_ep *)(msg->data));
 425                         break;
 426
 427                 case NGM_BT3C_NODE_GET_DEBUG:
 428                         NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_debug_ep),
 429                                 M_NOWAIT);
 430                         if (rsp == NULL)
 431                                 error = ENOMEM;
 432                         else
 433                                 *((ng_bt3c_node_debug_ep *)(rsp->data)) =
 434                                         sc->debug;
 435                         break;
 436
 437                 case NGM_BT3C_NODE_GET_QLEN:
 438                         NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_qlen_ep),
 439                                 M_NOWAIT);
 440                         if (rsp == NULL) {
 441                                 error = ENOMEM;
 442                                 break;
 443                         }
 444
 445                         switch (((ng_bt3c_node_qlen_ep *)(msg->data))->queue) {
 446                         case NGM_BT3C_NODE_IN_QUEUE:
 447                                 ((ng_bt3c_node_qlen_ep *)(rsp->data))->queue =
 448                                         NGM_BT3C_NODE_IN_QUEUE;
 449                                 ((ng_bt3c_node_qlen_ep *)(rsp->data))->qlen =
 450                                         sc->inq.ifq_maxlen;
 451                                 break;
 452
 453                         case NGM_BT3C_NODE_OUT_QUEUE:
 454                                 ((ng_bt3c_node_qlen_ep *)(rsp->data))->queue =
 455                                         NGM_BT3C_NODE_OUT_QUEUE;
 456                                 ((ng_bt3c_node_qlen_ep *)(rsp->data))->qlen =
 457                                         sc->outq.ifq_maxlen;
 458                                 break;
 459
 460                         default:
 461                                 NG_FREE_MSG(rsp);
 462                                 error = EINVAL;
 463                                 break;
 464                         }
 465                         break;
 466
 467                 case NGM_BT3C_NODE_SET_QLEN:
 468                         if (msg->header.arglen != sizeof(ng_bt3c_node_qlen_ep)){
 469                                 error = EMSGSIZE;
 470                                 break;
 471                         }
 472
 473                         if (((ng_bt3c_node_qlen_ep *)(msg->data))->qlen <= 0) {
 474                                 error = EINVAL;
 475                                 break;
 476                         }
 477
 478                         switch (((ng_bt3c_node_qlen_ep *)(msg->data))->queue) {
 479                         case NGM_BT3C_NODE_IN_QUEUE:
 480                                 sc->inq.ifq_maxlen = ((ng_bt3c_node_qlen_ep *)
 481                                         (msg->data))->qlen; /* XXX */
 482                                 break;
 483
 484                         case NGM_BT3C_NODE_OUT_QUEUE:
 485                                 sc->outq.ifq_maxlen = ((ng_bt3c_node_qlen_ep *)
 486                                         (msg->data))->qlen; /* XXX */
 487                                 break;
 488
 489                         default:
 490                                 error = EINVAL;
 491                                 break;
 492                         }
 493                         break;
 494
 495                 case NGM_BT3C_NODE_GET_STAT:
 496                         NG_MKRESPONSE(rsp, msg, sizeof(ng_bt3c_node_stat_ep),
 497                                 M_NOWAIT);
 498                         if (rsp == NULL)
 499                                 error = ENOMEM;
 500                         else
 501                                 bcopy(&sc->stat, rsp->data,
 502                                         sizeof(ng_bt3c_node_stat_ep));
 503                         break;
 504
 505                 case NGM_BT3C_NODE_RESET_STAT:
 506                         NG_BT3C_STAT_RESET(sc->stat);
 507                         break;
 508
 509                 case NGM_BT3C_NODE_DOWNLOAD_FIRMWARE:
 510                         if (msg->header.arglen <
 511                                         sizeof(ng_bt3c_firmware_block_ep))
 512                                 error = EMSGSIZE;
 513                         else
 514                                 bt3c_download_firmware(sc, msg->data,
 515                                                         msg->header.arglen);
 516                         break;
 517
 518                 default:
 519                         error = EINVAL;
 520                         break;
 521                 }
 522                 break;
 523
 524         default:
 525                 error = EINVAL;
 526                 break;
 527         }
 528
 529         NG_RESPOND_MSG(error, node, item, rsp);
 530         NG_FREE_MSG(msg);
 531
 532         return (error);
 533 } /* ng_bt3c_rcvmsg */
 534
 535 /*
 536  * Process data
 537  */
 538
 539 static int
 540 ng_bt3c_rcvdata(hook_p hook, item_p item)
 541 {
 542         bt3c_softc_p     sc = (bt3c_softc_p)NG_NODE_PRIVATE(NG_HOOK_NODE(hook));
 543         struct mbuf     *m = NULL;
 544         int              error = 0;
 545
 546         if (sc == NULL) {
 547                 error = EHOSTDOWN;
 548                 goto out;
 549         }
 550
 551         if (hook != sc->hook) {
 552                 error = EINVAL;
 553                 goto out;
 554         }
 555
 556         NGI_GET_M(item, m);
 557
 558         IF_LOCK(&sc->outq);
 559         if (_IF_QFULL(&sc->outq)) {
 560                 NG_BT3C_ERR(sc->dev,
 561 "Outgoing queue is full. Dropping mbuf, len=%d\n", m->m_pkthdr.len);
 562
 563                 NG_BT3C_STAT_OERROR(sc->stat);
 564
 565                 NG_FREE_M(m);
 566         } else
 567                 _IF_ENQUEUE(&sc->outq, m);
 568         IF_UNLOCK(&sc->outq);
 569
 570         error = ng_send_fn(sc->node, NULL, bt3c_send, NULL, 0 /* new send */);
 571 out:
 572         NG_FREE_ITEM(item);
 573
 574         return (error);
 575 } /* ng_bt3c_rcvdata */
 576
 577 /****************************************************************************
 578  ****************************************************************************
 579  **                         PCMCIA driver specific
 580  ****************************************************************************
 581  ****************************************************************************/
 582
 583 /*
 584  * PC Card (PCMCIA) probe routine
 585  */
 586
 587 static struct pccard_product const      bt3c_pccard_products[] = {
 588         PCMCIA_CARD(3COM, 3CRWB609),
 589         { NULL, }
 590 };
 591
 592 static int
 593 bt3c_pccard_probe(device_t dev)
 594 {
 595         struct pccard_product const     *pp = NULL;
 596
 597         pp = pccard_product_lookup(dev, bt3c_pccard_products,
 598                         sizeof(bt3c_pccard_products[0]), NULL);
 599         if (pp == NULL)
 600                 return (ENXIO);
 601
 602         device_set_desc(dev, pp->pp_name);
 603
 604         return (0);
 605 } /* bt3c_pccard_probe */
 606
 607 /*
 608  * PC Card (PCMCIA) attach routine
 609  */
 610
 611 static int
 612 bt3c_pccard_attach(device_t dev)
 613 {
 614         bt3c_softc_p    sc = (bt3c_softc_p) device_get_softc(dev);
 615
 616         /* Allocate I/O ports */
 617         sc->iobase_rid = 0;
 618         sc->iobase = bus_alloc_resource_anywhere(dev, SYS_RES_IOPORT,
 619                         &sc->iobase_rid, 8, RF_ACTIVE);
 620         if (sc->iobase == NULL) {
 621                 device_printf(dev, "Could not allocate I/O ports\n");
 622                 goto bad;
 623         }
 624         sc->iot = rman_get_bustag(sc->iobase);
 625         sc->ioh = rman_get_bushandle(sc->iobase);
 626
 627         /* Allocate IRQ */
 628         sc->irq_rid = 0;
 629         sc->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->irq_rid,
 630                         RF_ACTIVE);
 631         if (sc->irq == NULL) {
 632                 device_printf(dev, "Could not allocate IRQ\n");
 633                 goto bad;
 634         }
 635
 636         sc->irq_cookie = NULL;
 637         if (bus_setup_intr(dev, sc->irq, INTR_TYPE_TTY, NULL, bt3c_intr, sc,
 638                         &sc->irq_cookie) != 0) {
 639                 device_printf(dev, "Could not setup ISR\n");
 640                 goto bad;
 641         }
 642
 643         /* Attach handler to TTY SWI thread */
 644         sc->ith = NULL;
 645         if (swi_add(&tty_intr_event, device_get_nameunit(dev),
 646                         bt3c_swi_intr, sc, SWI_TTY, 0, &sc->ith) < 0) {
 647                 device_printf(dev, "Could not setup SWI ISR\n");
 648                 goto bad;
 649         }
 650
 651         /* Create Netgraph node */
 652         if (ng_make_node_common(&typestruct, &sc->node) != 0) {
 653                 device_printf(dev, "Could not create Netgraph node\n");
 654                 sc->node = NULL;
 655                 goto bad;
 656         }
 657
 658         /* Name Netgraph node */
 659         if (ng_name_node(sc->node, device_get_nameunit(dev)) != 0) {
 660                 device_printf(dev, "Could not name Netgraph node\n");
 661                 NG_NODE_UNREF(sc->node);
 662                 sc->node = NULL;
 663                 goto bad;
 664         }
 665
 666         sc->dev = dev;
 667         sc->debug = NG_BT3C_WARN_LEVEL;
 668
 669         sc->inq.ifq_maxlen = sc->outq.ifq_maxlen = BT3C_DEFAULTQLEN;
 670         mtx_init(&sc->inq.ifq_mtx, "BT3C inq", NULL, MTX_DEF);
 671         mtx_init(&sc->outq.ifq_mtx, "BT3C outq", NULL, MTX_DEF);
 672
 673         sc->state = NG_BT3C_W4_PKT_IND;
 674         sc->want = 1;
 675
 676         NG_NODE_SET_PRIVATE(sc->node, sc);
 677
 678         return (0);
 679 bad:
 680         if (sc->ith != NULL) {
 681                 swi_remove(sc->ith);
 682                 sc->ith = NULL;
 683         }
 684
 685         if (sc->irq != NULL) {
 686                 if (sc->irq_cookie != NULL)
 687                         bus_teardown_intr(dev, sc->irq, sc->irq_cookie);
 688
 689                 bus_release_resource(dev, SYS_RES_IRQ,
 690                         sc->irq_rid, sc->irq);
 691
 692                 sc->irq = NULL;
 693                 sc->irq_rid = 0;
 694         }
 695
 696         if (sc->iobase != NULL) {
 697                 bus_release_resource(dev, SYS_RES_IOPORT,
 698                         sc->iobase_rid, sc->iobase);
 699
 700                 sc->iobase = NULL;
 701                 sc->iobase_rid = 0;
 702         }
 703
 704         return (ENXIO);
 705 } /* bt3c_pccacd_attach */
 706
 707 /*
 708  * PC Card (PCMCIA) detach routine
 709  */
 710
 711 static int
 712 bt3c_pccard_detach(device_t dev)
 713 {
 714         bt3c_softc_p    sc = (bt3c_softc_p) device_get_softc(dev);
 715
 716         if (sc == NULL)
 717                 return (0);
 718
 719         swi_remove(sc->ith);
 720         sc->ith = NULL;
 721
 722         bus_teardown_intr(dev, sc->irq, sc->irq_cookie);
 723         bus_release_resource(dev, SYS_RES_IRQ, sc->irq_rid, sc->irq);
 724         sc->irq_cookie = NULL;
 725         sc->irq = NULL;
 726         sc->irq_rid = 0;
 727
 728         bus_release_resource(dev, SYS_RES_IOPORT, sc->iobase_rid, sc->iobase);
 729         sc->iobase = NULL;
 730         sc->iobase_rid = 0;
 731
 732         if (sc->node != NULL) {
 733                 NG_NODE_SET_PRIVATE(sc->node, NULL);
 734                 ng_rmnode_self(sc->node);
 735                 sc->node = NULL;
 736         }
 737
 738         NG_FREE_M(sc->m);
 739         IF_DRAIN(&sc->inq);
 740         IF_DRAIN(&sc->outq);
 741
 742         mtx_destroy(&sc->inq.ifq_mtx);
 743         mtx_destroy(&sc->outq.ifq_mtx);
 744
 745         return (0);
 746 } /* bt3c_pccacd_detach */
 747
 748 /*
 749  * Interrupt service routine's
 750  */
 751
 752 static void
 753 bt3c_intr(void *context)
 754 {
 755         bt3c_softc_p    sc = (bt3c_softc_p) context;
 756         u_int16_t       control, status;
 757
 758         if (sc == NULL || sc->ith == NULL) {
 759                 printf("%s: bogus interrupt\n", NG_BT3C_NODE_TYPE);
 760                 return;
 761         }
 762
 763         bt3c_read_control(sc, control);
 764         if ((control & 0x80) == 0)
 765                 return;
 766
 767         bt3c_read(sc, 0x7001, status);
 768         NG_BT3C_INFO(sc->dev, "control=%#x, status=%#x\n", control, status);
 769
 770         if ((status & 0xff) == 0x7f || (status & 0xff) == 0xff) {
 771                 NG_BT3C_WARN(sc->dev, "Strange status=%#x\n", status);
 772                 return;
 773         }
 774
 775         /* Receive complete */
 776         if (status & 0x0001)
 777                 bt3c_receive(sc);
 778
 779         /* Record status and schedule SWI */
 780         sc->status |= status;
 781         swi_sched(sc->ith, 0);
 782
 783         /* Complete interrupt */
 784         bt3c_write(sc, 0x7001, 0x0000);
 785         bt3c_write_control(sc, control);
 786 } /* bt3c_intr */
 787
 788 /*
 789  * Receive data
 790  */
 791
 792 static void
 793 bt3c_receive(bt3c_softc_p sc)
 794 {
 795         u_int16_t       i, count, c;
 796
 797         /* Receive data from the card */
 798         bt3c_read(sc, 0x7006, count);
 799         NG_BT3C_INFO(sc->dev, "The card has %d characters\n", count);
 800
 801         bt3c_set_address(sc, 0x7480);
 802
 803         for (i = 0; i < count; i++) {
 804                 /* Allocate new mbuf if needed */
 805                 if (sc->m == NULL) {
 806                         sc->state = NG_BT3C_W4_PKT_IND;
 807                         sc->want = 1;
 808
 809                         MGETHDR(sc->m, M_NOWAIT, MT_DATA);
 810                         if (sc->m == NULL) {
 811                                 NG_BT3C_ERR(sc->dev, "Could not get mbuf\n");
 812                                 NG_BT3C_STAT_IERROR(sc->stat);
 813
 814                                 break; /* XXX lost of sync */
 815                         }
 816
 817                         if (!(MCLGET(sc->m, M_NOWAIT))) {
 818                                 NG_FREE_M(sc->m);
 819
 820                                 NG_BT3C_ERR(sc->dev, "Could not get cluster\n");
 821                                 NG_BT3C_STAT_IERROR(sc->stat);
 822
 823                                 break; /* XXX lost of sync */
 824                         }
 825
 826                         sc->m->m_len = sc->m->m_pkthdr.len = 0;
 827                 }
 828
 829                 /* Read and append character to mbuf */
 830                 bt3c_read_data(sc, c);
 831                 if (sc->m->m_pkthdr.len >= MCLBYTES) {
 832                         NG_BT3C_ERR(sc->dev, "Oversized frame\n");
 833
 834                         NG_FREE_M(sc->m);
 835                         sc->state = NG_BT3C_W4_PKT_IND;
 836                         sc->want = 1;
 837
 838                         break; /* XXX lost of sync */
 839                 }
 840
 841                 mtod(sc->m, u_int8_t *)[sc->m->m_len ++] = (u_int8_t) c;
 842                 sc->m->m_pkthdr.len ++;
 843
 844                 NG_BT3C_INFO(sc->dev,
 845 "Got char %#x, want=%d, got=%d\n", c, sc->want, sc->m->m_pkthdr.len);
 846
 847                 if (sc->m->m_pkthdr.len < sc->want)
 848                         continue; /* wait for more */
 849
 850                 switch (sc->state) {
 851                 /* Got packet indicator */
 852                 case NG_BT3C_W4_PKT_IND:
 853                         NG_BT3C_INFO(sc->dev,
 854 "Got packet indicator %#x\n", *mtod(sc->m, u_int8_t *));
 855
 856                         sc->state = NG_BT3C_W4_PKT_HDR;
 857
 858                         /*
 859                          * Since packet indicator included in the packet
 860                          * header just set sc->want to sizeof(packet header).
 861                          */
 862
 863                         switch (*mtod(sc->m, u_int8_t *)) {
 864                         case NG_HCI_ACL_DATA_PKT:
 865                                 sc->want = sizeof(ng_hci_acldata_pkt_t);
 866                                 break;
 867
 868                         case NG_HCI_SCO_DATA_PKT:
 869                                 sc->want = sizeof(ng_hci_scodata_pkt_t);
 870                                 break;
 871
 872                         case NG_HCI_EVENT_PKT:
 873                                 sc->want = sizeof(ng_hci_event_pkt_t);
 874                                 break;
 875
 876                         default:
 877                                 NG_BT3C_ERR(sc->dev,
 878 "Ignoring unknown packet type=%#x\n", *mtod(sc->m, u_int8_t *));
 879
 880                                 NG_BT3C_STAT_IERROR(sc->stat);
 881
 882                                 NG_FREE_M(sc->m);
 883                                 sc->state = NG_BT3C_W4_PKT_IND;
 884                                 sc->want = 1;
 885                                 break;
 886                         }
 887                         break;
 888
 889                 /* Got packet header */
 890                 case NG_BT3C_W4_PKT_HDR:
 891                         sc->state = NG_BT3C_W4_PKT_DATA;
 892
 893                         switch (*mtod(sc->m, u_int8_t *)) {
 894                         case NG_HCI_ACL_DATA_PKT:
 895                                 c = le16toh(mtod(sc->m,
 896                                         ng_hci_acldata_pkt_t *)->length);
 897                                 break;
 898
 899                         case NG_HCI_SCO_DATA_PKT:
 900                                 c = mtod(sc->m, ng_hci_scodata_pkt_t*)->length;
 901                                 break;
 902
 903                         case NG_HCI_EVENT_PKT:
 904                                 c = mtod(sc->m, ng_hci_event_pkt_t *)->length;
 905                                 break;
 906
 907                         default:
 908                                 KASSERT(0,
 909 ("Invalid packet type=%#x\n", *mtod(sc->m, u_int8_t *)));
 910                                 break;
 911                          }
 912
 913                         NG_BT3C_INFO(sc->dev,
 914 "Got packet header, packet type=%#x, got so far %d, payload size=%d\n",
 915                                 *mtod(sc->m, u_int8_t *), sc->m->m_pkthdr.len,
 916                                 c);
 917
 918                         if (c > 0) {
 919                                 sc->want += c;
 920                                 break;
 921                         }
 922
 923                         /* else FALLTHROUGH and deliver frame */
 924                         /* XXX is this true? should we deliver empty frame? */
 925
 926                 /* Got packet data */
 927                 case NG_BT3C_W4_PKT_DATA:
 928                         NG_BT3C_INFO(sc->dev,
 929 "Got full packet, packet type=%#x, packet size=%d\n",
 930                                 *mtod(sc->m, u_int8_t *), sc->m->m_pkthdr.len);
 931
 932                         NG_BT3C_STAT_BYTES_RECV(sc->stat, sc->m->m_pkthdr.len);
 933                         NG_BT3C_STAT_PCKTS_RECV(sc->stat);
 934
 935                         IF_LOCK(&sc->inq);
 936                         if (_IF_QFULL(&sc->inq)) {
 937                                 NG_BT3C_ERR(sc->dev,
 938 "Incoming queue is full. Dropping mbuf, len=%d\n", sc->m->m_pkthdr.len);
 939
 940                                 NG_BT3C_STAT_IERROR(sc->stat);
 941
 942                                 NG_FREE_M(sc->m);
 943                         } else {
 944                                 _IF_ENQUEUE(&sc->inq, sc->m);
 945                                 sc->m = NULL;
 946                         }
 947                         IF_UNLOCK(&sc->inq);
 948
 949                         sc->state = NG_BT3C_W4_PKT_IND;
 950                         sc->want = 1;
 951                         break;
 952
 953                 default:
 954                         KASSERT(0,
 955 ("Invalid node state=%d", sc->state));
 956                         break;
 957                 }
 958         }
 959
 960         bt3c_write(sc, 0x7006, 0x0000);
 961 } /* bt3c_receive */
 962
 963 /*
 964  * SWI interrupt handler
 965  * Netgraph part is handled via ng_send_fn() to avoid race with hook
 966  * connection/disconnection
 967  */
 968
 969 static void
 970 bt3c_swi_intr(void *context)
 971 {
 972         bt3c_softc_p    sc = (bt3c_softc_p) context;
 973         u_int16_t       data;
 974
 975         /* Receive complete */
 976         if (sc->status & 0x0001) {
 977                 sc->status &= ~0x0001; /* XXX is it safe? */
 978
 979                 if (ng_send_fn(sc->node, NULL, &bt3c_forward, NULL, 0) != 0)
 980                         NG_BT3C_ALERT(sc->dev, "Could not forward frames!\n");
 981         }
 982
 983         /* Send complete */
 984         if (sc->status & 0x0002) {
 985                 sc->status &= ~0x0002; /* XXX is it safe */
 986
 987                 if (ng_send_fn(sc->node, NULL, &bt3c_send, NULL, 1) != 0)
 988                         NG_BT3C_ALERT(sc->dev, "Could not send frames!\n");
 989         }
 990
 991         /* Antenna position */
 992         if (sc->status & 0x0020) {
 993                 sc->status &= ~0x0020; /* XXX is it safe */
 994
 995                 bt3c_read(sc, 0x7002, data);
 996                 data &= 0x10;
 997
 998                 if (data)
 999                         sc->flags |= BT3C_ANTENNA_OUT;
1000                 else
1001                         sc->flags &= ~BT3C_ANTENNA_OUT;
1002
1003                 NG_BT3C_INFO(sc->dev, "Antenna %s\n", data? "OUT" : "IN");
1004         }
1005 } /* bt3c_swi_intr */
1006
1007 /*
1008  * Send all incoming frames to the upper layer
1009  */
1010
1011 static void
1012 bt3c_forward(node_p node, hook_p hook, void *arg1, int arg2)
1013 {
1014         bt3c_softc_p     sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
1015         struct mbuf     *m = NULL;
1016         int              error;
1017
1018         if (sc == NULL)
1019                 return;
1020
1021         if (sc->hook != NULL && NG_HOOK_IS_VALID(sc->hook)) {
1022                 for (;;) {
1023                         IF_DEQUEUE(&sc->inq, m);
1024                         if (m == NULL)
1025                                 break;
1026
1027                         NG_SEND_DATA_ONLY(error, sc->hook, m);
1028                         if (error != 0)
1029                                 NG_BT3C_STAT_IERROR(sc->stat);
1030                 }
1031         } else {
1032                 IF_LOCK(&sc->inq);
1033                 for (;;) {
1034                         _IF_DEQUEUE(&sc->inq, m);
1035                         if (m == NULL)
1036                                 break;
1037
1038                         NG_BT3C_STAT_IERROR(sc->stat);
1039                         NG_FREE_M(m);
1040                 }
1041                 IF_UNLOCK(&sc->inq);
1042         }
1043 } /* bt3c_forward */
1044
1045 /*
1046  * Send more data to the device. Must be called when node is locked
1047  */
1048
1049 static void
1050 bt3c_send(node_p node, hook_p hook, void *arg, int completed)
1051 {
1052         bt3c_softc_p     sc = (bt3c_softc_p) NG_NODE_PRIVATE(node);
1053         struct mbuf     *m = NULL;
1054         int              i, wrote, len;
1055
1056         if (sc == NULL)
1057                 return;
1058
1059         if (completed)
1060                 sc->flags &= ~BT3C_XMIT;
1061
1062         if (sc->flags & BT3C_XMIT)
1063                 return;
1064
1065         bt3c_set_address(sc, 0x7080);
1066
1067         for (wrote = 0; wrote < BT3C_FIFO_SIZE; ) {
1068                 IF_DEQUEUE(&sc->outq, m);
1069                 if (m == NULL)
1070                         break;
1071
1072                 while (m != NULL) {
1073                         len = min((BT3C_FIFO_SIZE - wrote), m->m_len);
1074
1075                         for (i = 0; i < len; i++)
1076                                 bt3c_write_data(sc, m->m_data[i]);
1077
1078                         wrote += len;
1079                         m->m_data += len;
1080                         m->m_len -= len;
1081
1082                         if (m->m_len > 0)
1083                                 break;
1084
1085                         m = m_free(m);
1086                 }
1087
1088                 if (m != NULL) {
1089                         IF_PREPEND(&sc->outq, m);
1090                         break;
1091                 }
1092
1093                 NG_BT3C_STAT_PCKTS_SENT(sc->stat);
1094         }
1095
1096         if (wrote > 0) {
1097                 NG_BT3C_INFO(sc->dev, "Wrote %d bytes\n", wrote);
1098                 NG_BT3C_STAT_BYTES_SENT(sc->stat, wrote);
1099
1100                 bt3c_write(sc, 0x7005, wrote);
1101                 sc->flags |= BT3C_XMIT;
1102         }
1103 } /* bt3c_send */
1104
1105 /*
1106  * Download chip firmware
1107  */
1108
1109 static void
1110 bt3c_download_firmware(bt3c_softc_p sc, char const *firmware, int firmware_size)
1111 {
1112         ng_bt3c_firmware_block_ep const *block = NULL;
1113         u_int16_t const                 *data = NULL;
1114         int                              i, size;
1115         u_int8_t                         c;
1116
1117         /* Reset */
1118         device_printf(sc->dev, "Reseting the card...\n");
1119         bt3c_write(sc, 0x8040, 0x0404);
1120         bt3c_write(sc, 0x8040, 0x0400);
1121         DELAY(1);
1122
1123         bt3c_write(sc, 0x8040, 0x0404);
1124         DELAY(17);
1125
1126         /* Download firmware */
1127         device_printf(sc->dev, "Starting firmware download process...\n");
1128
1129         for (size = 0; size < firmware_size; ) {
1130                 block = (ng_bt3c_firmware_block_ep const *)(firmware + size);
1131                 data = (u_int16_t const *)(block + 1);
1132
1133                 if (bootverbose)
1134                         device_printf(sc->dev, "Download firmware block, " \
1135                                 "address=%#08x, size=%d words, aligment=%d\n",
1136                                 block->block_address, block->block_size,
1137                                 block->block_alignment);
1138
1139                 bt3c_set_address(sc, block->block_address);
1140                 for (i = 0; i < block->block_size; i++)
1141                         bt3c_write_data(sc, data[i]);
1142
1143                 size += (sizeof(*block) + (block->block_size * 2) +
1144                                 block->block_alignment);
1145         }
1146
1147         DELAY(17);
1148         device_printf(sc->dev, "Firmware download process complete\n");
1149
1150         /* Boot */
1151         device_printf(sc->dev, "Starting the card...\n");
1152         bt3c_set_address(sc, 0x3000);
1153         bt3c_read_control(sc, c);
1154         bt3c_write_control(sc, (c | 0x40));
1155         DELAY(17);
1156
1157         /* Clear registers */
1158         device_printf(sc->dev, "Clearing card registers...\n");
1159         bt3c_write(sc, 0x7006, 0x0000);
1160         bt3c_write(sc, 0x7005, 0x0000);
1161         bt3c_write(sc, 0x7001, 0x0000);
1162         DELAY(1000);
1163 } /* bt3c_download_firmware */
1164
1165 /****************************************************************************
1166  ****************************************************************************
1167  **                           Driver module
1168  ****************************************************************************
1169  ****************************************************************************/
1170
1171 /*
1172  * PC Card (PCMCIA) driver
1173  */
1174
1175 static device_method_t  bt3c_pccard_methods[] = {
1176         /* Device interface */
1177         DEVMETHOD(device_probe,         bt3c_pccard_probe),
1178         DEVMETHOD(device_attach,        bt3c_pccard_attach),
1179         DEVMETHOD(device_detach,        bt3c_pccard_detach),
1180
1181         { 0, 0 }
1182 };
1183
1184 static driver_t         bt3c_pccard_driver = {
1185         NG_BT3C_NODE_TYPE,
1186         bt3c_pccard_methods,
1187         sizeof(bt3c_softc_t)
1188 };
1189
1190 static devclass_t       bt3c_devclass;
1191
1192
1193 /*
1194  * Load/Unload the driver module
1195  */
1196
1197 static int
1198 bt3c_modevent(module_t mod, int event, void *data)
1199 {
1200         int     error;
1201
1202         switch (event) {
1203         case MOD_LOAD:
1204                 error = ng_newtype(&typestruct);
1205                 if (error != 0)
1206                         printf("%s: Could not register Netgraph node type, " \
1207                                 "error=%d\n", NG_BT3C_NODE_TYPE, error);
1208                 break;
1209
1210         case MOD_UNLOAD:
1211                 error = ng_rmtype(&typestruct);
1212                 break;
1213
1214         default:
1215                 error = EOPNOTSUPP;
1216                 break;
1217         }
1218
1219         return (error);
1220 } /* bt3c_modevent */
1221
1222 DRIVER_MODULE(bt3c, pccard, bt3c_pccard_driver, bt3c_devclass, bt3c_modevent,0);
1223 MODULE_VERSION(ng_bt3c, NG_BLUETOOTH_VERSION);
1224 MODULE_DEPEND(ng_bt3c, netgraph, NG_ABI_VERSION, NG_ABI_VERSION,NG_ABI_VERSION);
1225 PCCARD_PNP_INFO(bt3c_pccard_products);