sound/pci/asihpi/hpimsgx.c

   1 /******************************************************************************
   2
   3     AudioScience HPI driver
   4     Copyright (C) 1997-2011  AudioScience Inc. <support@audioscience.com>
   5
   6     This program is free software; you can redistribute it and/or modify
   7     it under the terms of version 2 of the GNU General Public License as
   8     published by the Free Software Foundation;
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18
  19 Extended Message Function With Response Caching
  20
  21 (C) Copyright AudioScience Inc. 2002
  22 *****************************************************************************/
  23 #define SOURCEFILE_NAME "hpimsgx.c"
  24 #include "hpi_internal.h"
  25 #include "hpi_version.h"
  26 #include "hpimsginit.h"
  27 #include "hpicmn.h"
  28 #include "hpimsgx.h"
  29 #include "hpidebug.h"
  30
  31 static struct pci_device_id asihpi_pci_tbl[] = {
  32 #include "hpipcida.h"
  33 };
  34
  35 static struct hpios_spinlock msgx_lock;
  36
  37 static hpi_handler_func *hpi_entry_points[HPI_MAX_ADAPTERS];
  38
  39 static hpi_handler_func *hpi_lookup_entry_point_function(const struct hpi_pci
  40         *pci_info)
  41 {
  42
  43         int i;
  44
  45         for (i = 0; asihpi_pci_tbl[i].vendor != 0; i++) {
  46                 if (asihpi_pci_tbl[i].vendor != PCI_ANY_ID
  47                         && asihpi_pci_tbl[i].vendor !=
  48                         pci_info->pci_dev->vendor)
  49                         continue;
  50                 if (asihpi_pci_tbl[i].device != PCI_ANY_ID
  51                         && asihpi_pci_tbl[i].device !=
  52                         pci_info->pci_dev->device)
  53                         continue;
  54                 if (asihpi_pci_tbl[i].subvendor != PCI_ANY_ID
  55                         && asihpi_pci_tbl[i].subvendor !=
  56                         pci_info->pci_dev->subsystem_vendor)
  57                         continue;
  58                 if (asihpi_pci_tbl[i].subdevice != PCI_ANY_ID
  59                         && asihpi_pci_tbl[i].subdevice !=
  60                         pci_info->pci_dev->subsystem_device)
  61                         continue;
  62
  63                 /* HPI_DEBUG_LOG(DEBUG, " %x,%lx\n", i,
  64                    asihpi_pci_tbl[i].driver_data); */
  65                 return (hpi_handler_func *) asihpi_pci_tbl[i].driver_data;
  66         }
  67
  68         return NULL;
  69 }
  70
  71 static inline void hw_entry_point(struct hpi_message *phm,
  72         struct hpi_response *phr)
  73 {
  74         if ((phm->adapter_index < HPI_MAX_ADAPTERS)
  75                 && hpi_entry_points[phm->adapter_index])
  76                 hpi_entry_points[phm->adapter_index] (phm, phr);
  77         else
  78                 hpi_init_response(phr, phm->object, phm->function,
  79                         HPI_ERROR_PROCESSING_MESSAGE);
  80 }
  81
  82 static void adapter_open(struct hpi_message *phm, struct hpi_response *phr);
  83 static void adapter_close(struct hpi_message *phm, struct hpi_response *phr);
  84
  85 static void mixer_open(struct hpi_message *phm, struct hpi_response *phr);
  86 static void mixer_close(struct hpi_message *phm, struct hpi_response *phr);
  87
  88 static void outstream_open(struct hpi_message *phm, struct hpi_response *phr,
  89         void *h_owner);
  90 static void outstream_close(struct hpi_message *phm, struct hpi_response *phr,
  91         void *h_owner);
  92 static void instream_open(struct hpi_message *phm, struct hpi_response *phr,
  93         void *h_owner);
  94 static void instream_close(struct hpi_message *phm, struct hpi_response *phr,
  95         void *h_owner);
  96
  97 static void HPIMSGX__reset(u16 adapter_index);
  98
  99 static u16 HPIMSGX__init(struct hpi_message *phm, struct hpi_response *phr);
 100 static void HPIMSGX__cleanup(u16 adapter_index, void *h_owner);
 101
 102 #ifndef DISABLE_PRAGMA_PACK1
 103 #pragma pack(push, 1)
 104 #endif
 105
 106 struct hpi_subsys_response {
 107         struct hpi_response_header h;
 108         struct hpi_subsys_res s;
 109 };
 110
 111 struct hpi_adapter_response {
 112         struct hpi_response_header h;
 113         struct hpi_adapter_res a;
 114 };
 115
 116 struct hpi_mixer_response {
 117         struct hpi_response_header h;
 118         struct hpi_mixer_res m;
 119 };
 120
 121 struct hpi_stream_response {
 122         struct hpi_response_header h;
 123         struct hpi_stream_res d;
 124 };
 125
 126 struct adapter_info {
 127         u16 type;
 128         u16 num_instreams;
 129         u16 num_outstreams;
 130 };
 131
 132 struct asi_open_state {
 133         int open_flag;
 134         void *h_owner;
 135 };
 136
 137 #ifndef DISABLE_PRAGMA_PACK1
 138 #pragma pack(pop)
 139 #endif
 140
 141 /* Globals */
 142 static struct hpi_adapter_response rESP_HPI_ADAPTER_OPEN[HPI_MAX_ADAPTERS];
 143
 144 static struct hpi_stream_response
 145         rESP_HPI_OSTREAM_OPEN[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];
 146
 147 static struct hpi_stream_response
 148         rESP_HPI_ISTREAM_OPEN[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];
 149
 150 static struct hpi_mixer_response rESP_HPI_MIXER_OPEN[HPI_MAX_ADAPTERS];
 151
 152 static struct adapter_info aDAPTER_INFO[HPI_MAX_ADAPTERS];
 153
 154 /* use these to keep track of opens from user mode apps/DLLs */
 155 static struct asi_open_state
 156         outstream_user_open[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];
 157
 158 static struct asi_open_state
 159         instream_user_open[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];
 160
 161 static void subsys_message(struct hpi_message *phm, struct hpi_response *phr,
 162         void *h_owner)
 163 {
 164         if (phm->adapter_index != HPI_ADAPTER_INDEX_INVALID)
 165                 HPI_DEBUG_LOG(WARNING,
 166                         "suspicious adapter index %d in subsys message 0x%x.\n",
 167                         phm->adapter_index, phm->function);
 168
 169         switch (phm->function) {
 170         case HPI_SUBSYS_GET_VERSION:
 171                 hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
 172                         HPI_SUBSYS_GET_VERSION, 0);
 173                 phr->u.s.version = HPI_VER >> 8;        /* return major.minor */
 174                 phr->u.s.data = HPI_VER;        /* return major.minor.release */
 175                 break;
 176         case HPI_SUBSYS_OPEN:
 177                 /*do not propagate the message down the chain */
 178                 hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_OPEN, 0);
 179                 break;
 180         case HPI_SUBSYS_CLOSE:
 181                 /*do not propagate the message down the chain */
 182                 hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CLOSE,
 183                         0);
 184                 HPIMSGX__cleanup(HPIMSGX_ALLADAPTERS, h_owner);
 185                 break;
 186         case HPI_SUBSYS_DRIVER_LOAD:
 187                 /* Initialize this module's internal state */
 188                 hpios_msgxlock_init(&msgx_lock);
 189                 memset(&hpi_entry_points, 0, sizeof(hpi_entry_points));
 190                 /* Init subsys_findadapters response to no-adapters */
 191                 HPIMSGX__reset(HPIMSGX_ALLADAPTERS);
 192                 hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
 193                         HPI_SUBSYS_DRIVER_LOAD, 0);
 194                 /* individual HPIs dont implement driver load */
 195                 HPI_COMMON(phm, phr);
 196                 break;
 197         case HPI_SUBSYS_DRIVER_UNLOAD:
 198                 HPI_COMMON(phm, phr);
 199                 HPIMSGX__cleanup(HPIMSGX_ALLADAPTERS, h_owner);
 200                 hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
 201                         HPI_SUBSYS_DRIVER_UNLOAD, 0);
 202                 return;
 203
 204         case HPI_SUBSYS_GET_NUM_ADAPTERS:
 205         case HPI_SUBSYS_GET_ADAPTER:
 206                 HPI_COMMON(phm, phr);
 207                 break;
 208
 209         case HPI_SUBSYS_CREATE_ADAPTER:
 210                 HPIMSGX__init(phm, phr);
 211                 break;
 212
 213         default:
 214                 /* Must explicitly handle every subsys message in this switch */
 215                 hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, phm->function,
 216                         HPI_ERROR_INVALID_FUNC);
 217                 break;
 218         }
 219 }
 220
 221 static void adapter_message(struct hpi_message *phm, struct hpi_response *phr,
 222         void *h_owner)
 223 {
 224         switch (phm->function) {
 225         case HPI_ADAPTER_OPEN:
 226                 adapter_open(phm, phr);
 227                 break;
 228         case HPI_ADAPTER_CLOSE:
 229                 adapter_close(phm, phr);
 230                 break;
 231         case HPI_ADAPTER_DELETE:
 232                 HPIMSGX__cleanup(phm->adapter_index, h_owner);
 233                 {
 234                         struct hpi_message hm;
 235                         struct hpi_response hr;
 236                         hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
 237                                 HPI_ADAPTER_CLOSE);
 238                         hm.adapter_index = phm->adapter_index;
 239                         hw_entry_point(&hm, &hr);
 240                 }
 241                 hw_entry_point(phm, phr);
 242                 break;
 243
 244         default:
 245                 hw_entry_point(phm, phr);
 246                 break;
 247         }
 248 }
 249
 250 static void mixer_message(struct hpi_message *phm, struct hpi_response *phr)
 251 {
 252         switch (phm->function) {
 253         case HPI_MIXER_OPEN:
 254                 mixer_open(phm, phr);
 255                 break;
 256         case HPI_MIXER_CLOSE:
 257                 mixer_close(phm, phr);
 258                 break;
 259         default:
 260                 hw_entry_point(phm, phr);
 261                 break;
 262         }
 263 }
 264
 265 static void outstream_message(struct hpi_message *phm,
 266         struct hpi_response *phr, void *h_owner)
 267 {
 268         if (phm->obj_index >= aDAPTER_INFO[phm->adapter_index].num_outstreams) {
 269                 hpi_init_response(phr, HPI_OBJ_OSTREAM, phm->function,
 270                         HPI_ERROR_INVALID_OBJ_INDEX);
 271                 return;
 272         }
 273
 274         switch (phm->function) {
 275         case HPI_OSTREAM_OPEN:
 276                 outstream_open(phm, phr, h_owner);
 277                 break;
 278         case HPI_OSTREAM_CLOSE:
 279                 outstream_close(phm, phr, h_owner);
 280                 break;
 281         default:
 282                 hw_entry_point(phm, phr);
 283                 break;
 284         }
 285 }
 286
 287 static void instream_message(struct hpi_message *phm,
 288         struct hpi_response *phr, void *h_owner)
 289 {
 290         if (phm->obj_index >= aDAPTER_INFO[phm->adapter_index].num_instreams) {
 291                 hpi_init_response(phr, HPI_OBJ_ISTREAM, phm->function,
 292                         HPI_ERROR_INVALID_OBJ_INDEX);
 293                 return;
 294         }
 295
 296         switch (phm->function) {
 297         case HPI_ISTREAM_OPEN:
 298                 instream_open(phm, phr, h_owner);
 299                 break;
 300         case HPI_ISTREAM_CLOSE:
 301                 instream_close(phm, phr, h_owner);
 302                 break;
 303         default:
 304                 hw_entry_point(phm, phr);
 305                 break;
 306         }
 307 }
 308
 309 /* NOTE: HPI_Message() must be defined in the driver as a wrapper for
 310  * HPI_MessageEx so that functions in hpifunc.c compile.
 311  */
 312 void hpi_send_recv_ex(struct hpi_message *phm, struct hpi_response *phr,
 313         void *h_owner)
 314 {
 315         HPI_DEBUG_MESSAGE(DEBUG, phm);
 316
 317         if (phm->type != HPI_TYPE_REQUEST) {
 318                 hpi_init_response(phr, phm->object, phm->function,
 319                         HPI_ERROR_INVALID_TYPE);
 320                 return;
 321         }
 322
 323         if (phm->adapter_index >= HPI_MAX_ADAPTERS
 324                 && phm->adapter_index != HPIMSGX_ALLADAPTERS) {
 325                 hpi_init_response(phr, phm->object, phm->function,
 326                         HPI_ERROR_BAD_ADAPTER_NUMBER);
 327                 return;
 328         }
 329
 330         switch (phm->object) {
 331         case HPI_OBJ_SUBSYSTEM:
 332                 subsys_message(phm, phr, h_owner);
 333                 break;
 334
 335         case HPI_OBJ_ADAPTER:
 336                 adapter_message(phm, phr, h_owner);
 337                 break;
 338
 339         case HPI_OBJ_MIXER:
 340                 mixer_message(phm, phr);
 341                 break;
 342
 343         case HPI_OBJ_OSTREAM:
 344                 outstream_message(phm, phr, h_owner);
 345                 break;
 346
 347         case HPI_OBJ_ISTREAM:
 348                 instream_message(phm, phr, h_owner);
 349                 break;
 350
 351         default:
 352                 hw_entry_point(phm, phr);
 353                 break;
 354         }
 355         HPI_DEBUG_RESPONSE(phr);
 356
 357 }
 358
 359 static void adapter_open(struct hpi_message *phm, struct hpi_response *phr)
 360 {
 361         HPI_DEBUG_LOG(VERBOSE, "adapter_open\n");
 362         memcpy(phr, &rESP_HPI_ADAPTER_OPEN[phm->adapter_index],
 363                 sizeof(rESP_HPI_ADAPTER_OPEN[0]));
 364 }
 365
 366 static void adapter_close(struct hpi_message *phm, struct hpi_response *phr)
 367 {
 368         HPI_DEBUG_LOG(VERBOSE, "adapter_close\n");
 369         hpi_init_response(phr, HPI_OBJ_ADAPTER, HPI_ADAPTER_CLOSE, 0);
 370 }
 371
 372 static void mixer_open(struct hpi_message *phm, struct hpi_response *phr)
 373 {
 374         memcpy(phr, &rESP_HPI_MIXER_OPEN[phm->adapter_index],
 375                 sizeof(rESP_HPI_MIXER_OPEN[0]));
 376 }
 377
 378 static void mixer_close(struct hpi_message *phm, struct hpi_response *phr)
 379 {
 380         hpi_init_response(phr, HPI_OBJ_MIXER, HPI_MIXER_CLOSE, 0);
 381 }
 382
 383 static void instream_open(struct hpi_message *phm, struct hpi_response *phr,
 384         void *h_owner)
 385 {
 386
 387         struct hpi_message hm;
 388         struct hpi_response hr;
 389
 390         hpi_init_response(phr, HPI_OBJ_ISTREAM, HPI_ISTREAM_OPEN, 0);
 391
 392         hpios_msgxlock_lock(&msgx_lock);
 393
 394         if (instream_user_open[phm->adapter_index][phm->obj_index].open_flag)
 395                 phr->error = HPI_ERROR_OBJ_ALREADY_OPEN;
 396         else if (rESP_HPI_ISTREAM_OPEN[phm->adapter_index]
 397                 [phm->obj_index].h.error)
 398                 memcpy(phr,
 399                         &rESP_HPI_ISTREAM_OPEN[phm->adapter_index][phm->
 400                                 obj_index],
 401                         sizeof(rESP_HPI_ISTREAM_OPEN[0][0]));
 402         else {
 403                 instream_user_open[phm->adapter_index][phm->
 404                         obj_index].open_flag = 1;
 405                 hpios_msgxlock_unlock(&msgx_lock);
 406
 407                 /* issue a reset */
 408                 hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
 409                         HPI_ISTREAM_RESET);
 410                 hm.adapter_index = phm->adapter_index;
 411                 hm.obj_index = phm->obj_index;
 412                 hw_entry_point(&hm, &hr);
 413
 414                 hpios_msgxlock_lock(&msgx_lock);
 415                 if (hr.error) {
 416                         instream_user_open[phm->adapter_index][phm->
 417                                 obj_index].open_flag = 0;
 418                         phr->error = hr.error;
 419                 } else {
 420                         instream_user_open[phm->adapter_index][phm->
 421                                 obj_index].open_flag = 1;
 422                         instream_user_open[phm->adapter_index][phm->
 423                                 obj_index].h_owner = h_owner;
 424                         memcpy(phr,
 425                                 &rESP_HPI_ISTREAM_OPEN[phm->adapter_index]
 426                                 [phm->obj_index],
 427                                 sizeof(rESP_HPI_ISTREAM_OPEN[0][0]));
 428                 }
 429         }
 430         hpios_msgxlock_unlock(&msgx_lock);
 431 }
 432
 433 static void instream_close(struct hpi_message *phm, struct hpi_response *phr,
 434         void *h_owner)
 435 {
 436
 437         struct hpi_message hm;
 438         struct hpi_response hr;
 439
 440         hpi_init_response(phr, HPI_OBJ_ISTREAM, HPI_ISTREAM_CLOSE, 0);
 441
 442         hpios_msgxlock_lock(&msgx_lock);
 443         if (h_owner ==
 444                 instream_user_open[phm->adapter_index][phm->
 445                         obj_index].h_owner) {
 446                 /* HPI_DEBUG_LOG(INFO,"closing adapter %d "
 447                    "instream %d owned by %p\n",
 448                    phm->wAdapterIndex, phm->wObjIndex, hOwner); */
 449                 instream_user_open[phm->adapter_index][phm->
 450                         obj_index].h_owner = NULL;
 451                 hpios_msgxlock_unlock(&msgx_lock);
 452                 /* issue a reset */
 453                 hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
 454                         HPI_ISTREAM_RESET);
 455                 hm.adapter_index = phm->adapter_index;
 456                 hm.obj_index = phm->obj_index;
 457                 hw_entry_point(&hm, &hr);
 458                 hpios_msgxlock_lock(&msgx_lock);
 459                 if (hr.error) {
 460                         instream_user_open[phm->adapter_index][phm->
 461                                 obj_index].h_owner = h_owner;
 462                         phr->error = hr.error;
 463                 } else {
 464                         instream_user_open[phm->adapter_index][phm->
 465                                 obj_index].open_flag = 0;
 466                         instream_user_open[phm->adapter_index][phm->
 467                                 obj_index].h_owner = NULL;
 468                 }
 469         } else {
 470                 HPI_DEBUG_LOG(WARNING,
 471                         "%p trying to close %d instream %d owned by %p\n",
 472                         h_owner, phm->adapter_index, phm->obj_index,
 473                         instream_user_open[phm->adapter_index][phm->
 474                                 obj_index].h_owner);
 475                 phr->error = HPI_ERROR_OBJ_NOT_OPEN;
 476         }
 477         hpios_msgxlock_unlock(&msgx_lock);
 478 }
 479
 480 static void outstream_open(struct hpi_message *phm, struct hpi_response *phr,
 481         void *h_owner)
 482 {
 483
 484         struct hpi_message hm;
 485         struct hpi_response hr;
 486
 487         hpi_init_response(phr, HPI_OBJ_OSTREAM, HPI_OSTREAM_OPEN, 0);
 488
 489         hpios_msgxlock_lock(&msgx_lock);
 490
 491         if (outstream_user_open[phm->adapter_index][phm->obj_index].open_flag)
 492                 phr->error = HPI_ERROR_OBJ_ALREADY_OPEN;
 493         else if (rESP_HPI_OSTREAM_OPEN[phm->adapter_index]
 494                 [phm->obj_index].h.error)
 495                 memcpy(phr,
 496                         &rESP_HPI_OSTREAM_OPEN[phm->adapter_index][phm->
 497                                 obj_index],
 498                         sizeof(rESP_HPI_OSTREAM_OPEN[0][0]));
 499         else {
 500                 outstream_user_open[phm->adapter_index][phm->
 501                         obj_index].open_flag = 1;
 502                 hpios_msgxlock_unlock(&msgx_lock);
 503
 504                 /* issue a reset */
 505                 hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
 506                         HPI_OSTREAM_RESET);
 507                 hm.adapter_index = phm->adapter_index;
 508                 hm.obj_index = phm->obj_index;
 509                 hw_entry_point(&hm, &hr);
 510
 511                 hpios_msgxlock_lock(&msgx_lock);
 512                 if (hr.error) {
 513                         outstream_user_open[phm->adapter_index][phm->
 514                                 obj_index].open_flag = 0;
 515                         phr->error = hr.error;
 516                 } else {
 517                         outstream_user_open[phm->adapter_index][phm->
 518                                 obj_index].open_flag = 1;
 519                         outstream_user_open[phm->adapter_index][phm->
 520                                 obj_index].h_owner = h_owner;
 521                         memcpy(phr,
 522                                 &rESP_HPI_OSTREAM_OPEN[phm->adapter_index]
 523                                 [phm->obj_index],
 524                                 sizeof(rESP_HPI_OSTREAM_OPEN[0][0]));
 525                 }
 526         }
 527         hpios_msgxlock_unlock(&msgx_lock);
 528 }
 529
 530 static void outstream_close(struct hpi_message *phm, struct hpi_response *phr,
 531         void *h_owner)
 532 {
 533
 534         struct hpi_message hm;
 535         struct hpi_response hr;
 536
 537         hpi_init_response(phr, HPI_OBJ_OSTREAM, HPI_OSTREAM_CLOSE, 0);
 538
 539         hpios_msgxlock_lock(&msgx_lock);
 540
 541         if (h_owner ==
 542                 outstream_user_open[phm->adapter_index][phm->
 543                         obj_index].h_owner) {
 544                 /* HPI_DEBUG_LOG(INFO,"closing adapter %d "
 545                    "outstream %d owned by %p\n",
 546                    phm->wAdapterIndex, phm->wObjIndex, hOwner); */
 547                 outstream_user_open[phm->adapter_index][phm->
 548                         obj_index].h_owner = NULL;
 549                 hpios_msgxlock_unlock(&msgx_lock);
 550                 /* issue a reset */
 551                 hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
 552                         HPI_OSTREAM_RESET);
 553                 hm.adapter_index = phm->adapter_index;
 554                 hm.obj_index = phm->obj_index;
 555                 hw_entry_point(&hm, &hr);
 556                 hpios_msgxlock_lock(&msgx_lock);
 557                 if (hr.error) {
 558                         outstream_user_open[phm->adapter_index][phm->
 559                                 obj_index].h_owner = h_owner;
 560                         phr->error = hr.error;
 561                 } else {
 562                         outstream_user_open[phm->adapter_index][phm->
 563                                 obj_index].open_flag = 0;
 564                         outstream_user_open[phm->adapter_index][phm->
 565                                 obj_index].h_owner = NULL;
 566                 }
 567         } else {
 568                 HPI_DEBUG_LOG(WARNING,
 569                         "%p trying to close %d outstream %d owned by %p\n",
 570                         h_owner, phm->adapter_index, phm->obj_index,
 571                         outstream_user_open[phm->adapter_index][phm->
 572                                 obj_index].h_owner);
 573                 phr->error = HPI_ERROR_OBJ_NOT_OPEN;
 574         }
 575         hpios_msgxlock_unlock(&msgx_lock);
 576 }
 577
 578 static u16 adapter_prepare(u16 adapter)
 579 {
 580         struct hpi_message hm;
 581         struct hpi_response hr;
 582
 583         /* Open the adapter and streams */
 584         u16 i;
 585
 586         /* call to HPI_ADAPTER_OPEN */
 587         hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
 588                 HPI_ADAPTER_OPEN);
 589         hm.adapter_index = adapter;
 590         hw_entry_point(&hm, &hr);
 591         memcpy(&rESP_HPI_ADAPTER_OPEN[adapter], &hr,
 592                 sizeof(rESP_HPI_ADAPTER_OPEN[0]));
 593         if (hr.error)
 594                 return hr.error;
 595
 596         /* call to HPI_ADAPTER_GET_INFO */
 597         hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
 598                 HPI_ADAPTER_GET_INFO);
 599         hm.adapter_index = adapter;
 600         hw_entry_point(&hm, &hr);
 601         if (hr.error)
 602                 return hr.error;
 603
 604         aDAPTER_INFO[adapter].num_outstreams = hr.u.ax.info.num_outstreams;
 605         aDAPTER_INFO[adapter].num_instreams = hr.u.ax.info.num_instreams;
 606         aDAPTER_INFO[adapter].type = hr.u.ax.info.adapter_type;
 607
 608         /* call to HPI_OSTREAM_OPEN */
 609         for (i = 0; i < aDAPTER_INFO[adapter].num_outstreams; i++) {
 610                 hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
 611                         HPI_OSTREAM_OPEN);
 612                 hm.adapter_index = adapter;
 613                 hm.obj_index = i;
 614                 hw_entry_point(&hm, &hr);
 615                 memcpy(&rESP_HPI_OSTREAM_OPEN[adapter][i], &hr,
 616                         sizeof(rESP_HPI_OSTREAM_OPEN[0][0]));
 617                 outstream_user_open[adapter][i].open_flag = 0;
 618                 outstream_user_open[adapter][i].h_owner = NULL;
 619         }
 620
 621         /* call to HPI_ISTREAM_OPEN */
 622         for (i = 0; i < aDAPTER_INFO[adapter].num_instreams; i++) {
 623                 hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
 624                         HPI_ISTREAM_OPEN);
 625                 hm.adapter_index = adapter;
 626                 hm.obj_index = i;
 627                 hw_entry_point(&hm, &hr);
 628                 memcpy(&rESP_HPI_ISTREAM_OPEN[adapter][i], &hr,
 629                         sizeof(rESP_HPI_ISTREAM_OPEN[0][0]));
 630                 instream_user_open[adapter][i].open_flag = 0;
 631                 instream_user_open[adapter][i].h_owner = NULL;
 632         }
 633
 634         /* call to HPI_MIXER_OPEN */
 635         hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN);
 636         hm.adapter_index = adapter;
 637         hw_entry_point(&hm, &hr);
 638         memcpy(&rESP_HPI_MIXER_OPEN[adapter], &hr,
 639                 sizeof(rESP_HPI_MIXER_OPEN[0]));
 640
 641         return 0;
 642 }
 643
 644 static void HPIMSGX__reset(u16 adapter_index)
 645 {
 646         int i;
 647         u16 adapter;
 648         struct hpi_response hr;
 649
 650         if (adapter_index == HPIMSGX_ALLADAPTERS) {
 651                 for (adapter = 0; adapter < HPI_MAX_ADAPTERS; adapter++) {
 652
 653                         hpi_init_response(&hr, HPI_OBJ_ADAPTER,
 654                                 HPI_ADAPTER_OPEN, HPI_ERROR_BAD_ADAPTER);
 655                         memcpy(&rESP_HPI_ADAPTER_OPEN[adapter], &hr,
 656                                 sizeof(rESP_HPI_ADAPTER_OPEN[adapter]));
 657
 658                         hpi_init_response(&hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN,
 659                                 HPI_ERROR_INVALID_OBJ);
 660                         memcpy(&rESP_HPI_MIXER_OPEN[adapter], &hr,
 661                                 sizeof(rESP_HPI_MIXER_OPEN[adapter]));
 662
 663                         for (i = 0; i < HPI_MAX_STREAMS; i++) {
 664                                 hpi_init_response(&hr, HPI_OBJ_OSTREAM,
 665                                         HPI_OSTREAM_OPEN,
 666                                         HPI_ERROR_INVALID_OBJ);
 667                                 memcpy(&rESP_HPI_OSTREAM_OPEN[adapter][i],
 668                                         &hr,
 669                                         sizeof(rESP_HPI_OSTREAM_OPEN[adapter]
 670                                                 [i]));
 671                                 hpi_init_response(&hr, HPI_OBJ_ISTREAM,
 672                                         HPI_ISTREAM_OPEN,
 673                                         HPI_ERROR_INVALID_OBJ);
 674                                 memcpy(&rESP_HPI_ISTREAM_OPEN[adapter][i],
 675                                         &hr,
 676                                         sizeof(rESP_HPI_ISTREAM_OPEN[adapter]
 677                                                 [i]));
 678                         }
 679                 }
 680         } else if (adapter_index < HPI_MAX_ADAPTERS) {
 681                 rESP_HPI_ADAPTER_OPEN[adapter_index].h.error =
 682                         HPI_ERROR_BAD_ADAPTER;
 683                 rESP_HPI_MIXER_OPEN[adapter_index].h.error =
 684                         HPI_ERROR_INVALID_OBJ;
 685                 for (i = 0; i < HPI_MAX_STREAMS; i++) {
 686                         rESP_HPI_OSTREAM_OPEN[adapter_index][i].h.error =
 687                                 HPI_ERROR_INVALID_OBJ;
 688                         rESP_HPI_ISTREAM_OPEN[adapter_index][i].h.error =
 689                                 HPI_ERROR_INVALID_OBJ;
 690                 }
 691         }
 692 }
 693
 694 static u16 HPIMSGX__init(struct hpi_message *phm,
 695         /* HPI_SUBSYS_CREATE_ADAPTER structure with */
 696         /* resource list or NULL=find all */
 697         struct hpi_response *phr
 698         /* response from HPI_ADAPTER_GET_INFO */
 699         )
 700 {
 701         hpi_handler_func *entry_point_func;
 702         struct hpi_response hr;
 703
 704         /* Init response here so we can pass in previous adapter list */
 705         hpi_init_response(&hr, phm->object, phm->function,
 706                 HPI_ERROR_INVALID_OBJ);
 707
 708         entry_point_func =
 709                 hpi_lookup_entry_point_function(phm->u.s.resource.r.pci);
 710
 711         if (entry_point_func) {
 712                 HPI_DEBUG_MESSAGE(DEBUG, phm);
 713                 entry_point_func(phm, &hr);
 714         } else {
 715                 phr->error = HPI_ERROR_PROCESSING_MESSAGE;
 716                 return phr->error;
 717         }
 718         if (hr.error == 0) {
 719                 /* the adapter was created successfully
 720                    save the mapping for future use */
 721                 hpi_entry_points[hr.u.s.adapter_index] = entry_point_func;
 722                 /* prepare adapter (pre-open streams etc.) */
 723                 HPI_DEBUG_LOG(DEBUG,
 724                         "HPI_SUBSYS_CREATE_ADAPTER successful,"
 725                         " preparing adapter\n");
 726                 adapter_prepare(hr.u.s.adapter_index);
 727         }
 728         memcpy(phr, &hr, hr.size);
 729         return phr->error;
 730 }
 731
 732 static void HPIMSGX__cleanup(u16 adapter_index, void *h_owner)
 733 {
 734         int i, adapter, adapter_limit;
 735
 736         if (!h_owner)
 737                 return;
 738
 739         if (adapter_index == HPIMSGX_ALLADAPTERS) {
 740                 adapter = 0;
 741                 adapter_limit = HPI_MAX_ADAPTERS;
 742         } else {
 743                 adapter = adapter_index;
 744                 adapter_limit = adapter + 1;
 745         }
 746
 747         for (; adapter < adapter_limit; adapter++) {
 748                 /*      printk(KERN_INFO "Cleanup adapter #%d\n",wAdapter); */
 749                 for (i = 0; i < HPI_MAX_STREAMS; i++) {
 750                         if (h_owner ==
 751                                 outstream_user_open[adapter][i].h_owner) {
 752                                 struct hpi_message hm;
 753                                 struct hpi_response hr;
 754
 755                                 HPI_DEBUG_LOG(DEBUG,
 756                                         "Close adapter %d ostream %d\n",
 757                                         adapter, i);
 758
 759                                 hpi_init_message_response(&hm, &hr,
 760                                         HPI_OBJ_OSTREAM, HPI_OSTREAM_RESET);
 761                                 hm.adapter_index = (u16)adapter;
 762                                 hm.obj_index = (u16)i;
 763                                 hw_entry_point(&hm, &hr);
 764
 765                                 hm.function = HPI_OSTREAM_HOSTBUFFER_FREE;
 766                                 hw_entry_point(&hm, &hr);
 767
 768                                 hm.function = HPI_OSTREAM_GROUP_RESET;
 769                                 hw_entry_point(&hm, &hr);
 770
 771                                 outstream_user_open[adapter][i].open_flag = 0;
 772                                 outstream_user_open[adapter][i].h_owner =
 773                                         NULL;
 774                         }
 775                         if (h_owner == instream_user_open[adapter][i].h_owner) {
 776                                 struct hpi_message hm;
 777                                 struct hpi_response hr;
 778
 779                                 HPI_DEBUG_LOG(DEBUG,
 780                                         "Close adapter %d istream %d\n",
 781                                         adapter, i);
 782
 783                                 hpi_init_message_response(&hm, &hr,
 784                                         HPI_OBJ_ISTREAM, HPI_ISTREAM_RESET);
 785                                 hm.adapter_index = (u16)adapter;
 786                                 hm.obj_index = (u16)i;
 787                                 hw_entry_point(&hm, &hr);
 788
 789                                 hm.function = HPI_ISTREAM_HOSTBUFFER_FREE;
 790                                 hw_entry_point(&hm, &hr);
 791
 792                                 hm.function = HPI_ISTREAM_GROUP_RESET;
 793                                 hw_entry_point(&hm, &hr);
 794
 795                                 instream_user_open[adapter][i].open_flag = 0;
 796                                 instream_user_open[adapter][i].h_owner = NULL;
 797                         }
 798                 }
 799         }
 800 }