sound/pci/asihpi/hpi6000.c

   1 /******************************************************************************
   2
   3     AudioScience HPI driver
   4     Copyright (C) 1997-2010  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  Hardware Programming Interface (HPI) for AudioScience ASI6200 series adapters.
  20  These PCI bus adapters are based on the TI C6711 DSP.
  21
  22  Exported functions:
  23  void HPI_6000(struct hpi_message *phm, struct hpi_response *phr)
  24
  25  #defines
  26  HIDE_PCI_ASSERTS to show the PCI asserts
  27  PROFILE_DSP2 get profile data from DSP2 if present (instead of DSP 1)
  28
  29 (C) Copyright AudioScience Inc. 1998-2003
  30 *******************************************************************************/
  31 #define SOURCEFILE_NAME "hpi6000.c"
  32
  33 #include "hpi_internal.h"
  34 #include "hpimsginit.h"
  35 #include "hpidebug.h"
  36 #include "hpi6000.h"
  37 #include "hpidspcd.h"
  38 #include "hpicmn.h"
  39
  40 #define HPI_HIF_BASE (0x00000200)       /* start of C67xx internal RAM */
  41 #define HPI_HIF_ADDR(member) \
  42         (HPI_HIF_BASE + offsetof(struct hpi_hif_6000, member))
  43 #define HPI_HIF_ERROR_MASK      0x4000
  44
  45 /* HPI6000 specific error codes */
  46
  47 #define HPI6000_ERROR_BASE                              900
  48 #define HPI6000_ERROR_MSG_RESP_IDLE_TIMEOUT             901
  49 #define HPI6000_ERROR_MSG_RESP_SEND_MSG_ACK             902
  50 #define HPI6000_ERROR_MSG_RESP_GET_RESP_ACK             903
  51 #define HPI6000_ERROR_MSG_GET_ADR                       904
  52 #define HPI6000_ERROR_RESP_GET_ADR                      905
  53 #define HPI6000_ERROR_MSG_RESP_BLOCKWRITE32             906
  54 #define HPI6000_ERROR_MSG_RESP_BLOCKREAD32              907
  55 #define HPI6000_ERROR_MSG_INVALID_DSP_INDEX             908
  56 #define HPI6000_ERROR_CONTROL_CACHE_PARAMS              909
  57
  58 #define HPI6000_ERROR_SEND_DATA_IDLE_TIMEOUT            911
  59 #define HPI6000_ERROR_SEND_DATA_ACK                     912
  60 #define HPI6000_ERROR_SEND_DATA_ADR                     913
  61 #define HPI6000_ERROR_SEND_DATA_TIMEOUT                 914
  62 #define HPI6000_ERROR_SEND_DATA_CMD                     915
  63 #define HPI6000_ERROR_SEND_DATA_WRITE                   916
  64 #define HPI6000_ERROR_SEND_DATA_IDLECMD                 917
  65 #define HPI6000_ERROR_SEND_DATA_VERIFY                  918
  66
  67 #define HPI6000_ERROR_GET_DATA_IDLE_TIMEOUT             921
  68 #define HPI6000_ERROR_GET_DATA_ACK                      922
  69 #define HPI6000_ERROR_GET_DATA_CMD                      923
  70 #define HPI6000_ERROR_GET_DATA_READ                     924
  71 #define HPI6000_ERROR_GET_DATA_IDLECMD                  925
  72
  73 #define HPI6000_ERROR_CONTROL_CACHE_ADDRLEN             951
  74 #define HPI6000_ERROR_CONTROL_CACHE_READ                952
  75 #define HPI6000_ERROR_CONTROL_CACHE_FLUSH               953
  76
  77 #define HPI6000_ERROR_MSG_RESP_GETRESPCMD               961
  78 #define HPI6000_ERROR_MSG_RESP_IDLECMD                  962
  79 #define HPI6000_ERROR_MSG_RESP_BLOCKVERIFY32            963
  80
  81 /* adapter init errors */
  82 #define HPI6000_ERROR_UNHANDLED_SUBSYS_ID               930
  83
  84 /* can't access PCI2040 */
  85 #define HPI6000_ERROR_INIT_PCI2040                      931
  86 /* can't access DSP HPI i/f */
  87 #define HPI6000_ERROR_INIT_DSPHPI                       932
  88 /* can't access internal DSP memory */
  89 #define HPI6000_ERROR_INIT_DSPINTMEM                    933
  90 /* can't access SDRAM - test#1 */
  91 #define HPI6000_ERROR_INIT_SDRAM1                       934
  92 /* can't access SDRAM - test#2 */
  93 #define HPI6000_ERROR_INIT_SDRAM2                       935
  94
  95 #define HPI6000_ERROR_INIT_VERIFY                       938
  96
  97 #define HPI6000_ERROR_INIT_NOACK                        939
  98
  99 #define HPI6000_ERROR_INIT_PLDTEST1                     941
 100 #define HPI6000_ERROR_INIT_PLDTEST2                     942
 101
 102 /* local defines */
 103
 104 #define HIDE_PCI_ASSERTS
 105 #define PROFILE_DSP2
 106
 107 /* for PCI2040 i/f chip */
 108 /* HPI CSR registers */
 109 /* word offsets from CSR base */
 110 /* use when io addresses defined as u32 * */
 111
 112 #define INTERRUPT_EVENT_SET     0
 113 #define INTERRUPT_EVENT_CLEAR   1
 114 #define INTERRUPT_MASK_SET      2
 115 #define INTERRUPT_MASK_CLEAR    3
 116 #define HPI_ERROR_REPORT        4
 117 #define HPI_RESET               5
 118 #define HPI_DATA_WIDTH          6
 119
 120 #define MAX_DSPS 2
 121 /* HPI registers, spaced 8K bytes = 2K words apart */
 122 #define DSP_SPACING             0x800
 123
 124 #define CONTROL                 0x0000
 125 #define ADDRESS                 0x0200
 126 #define DATA_AUTOINC            0x0400
 127 #define DATA                    0x0600
 128
 129 #define TIMEOUT 500000
 130
 131 struct dsp_obj {
 132         __iomem u32 *prHPI_control;
 133         __iomem u32 *prHPI_address;
 134         __iomem u32 *prHPI_data;
 135         __iomem u32 *prHPI_data_auto_inc;
 136         char c_dsp_rev;         /*A, B */
 137         u32 control_cache_address_on_dsp;
 138         u32 control_cache_length_on_dsp;
 139         struct hpi_adapter_obj *pa_parent_adapter;
 140 };
 141
 142 struct hpi_hw_obj {
 143         __iomem u32 *dw2040_HPICSR;
 144         __iomem u32 *dw2040_HPIDSP;
 145
 146         u16 num_dsp;
 147         struct dsp_obj ado[MAX_DSPS];
 148
 149         u32 message_buffer_address_on_dsp;
 150         u32 response_buffer_address_on_dsp;
 151         u32 pCI2040HPI_error_count;
 152
 153         struct hpi_control_cache_single control_cache[HPI_NMIXER_CONTROLS];
 154         struct hpi_control_cache *p_cache;
 155 };
 156
 157 static u16 hpi6000_dsp_block_write32(struct hpi_adapter_obj *pao,
 158         u16 dsp_index, u32 hpi_address, u32 *source, u32 count);
 159 static u16 hpi6000_dsp_block_read32(struct hpi_adapter_obj *pao,
 160         u16 dsp_index, u32 hpi_address, u32 *dest, u32 count);
 161
 162 static short hpi6000_adapter_boot_load_dsp(struct hpi_adapter_obj *pao,
 163         u32 *pos_error_code);
 164 static short hpi6000_check_PCI2040_error_flag(struct hpi_adapter_obj *pao,
 165         u16 read_or_write);
 166 #define H6READ 1
 167 #define H6WRITE 0
 168
 169 static short hpi6000_update_control_cache(struct hpi_adapter_obj *pao,
 170         struct hpi_message *phm);
 171 static short hpi6000_message_response_sequence(struct hpi_adapter_obj *pao,
 172         u16 dsp_index, struct hpi_message *phm, struct hpi_response *phr);
 173
 174 static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm,
 175         struct hpi_response *phr);
 176
 177 static short hpi6000_wait_dsp_ack(struct hpi_adapter_obj *pao, u16 dsp_index,
 178         u32 ack_value);
 179
 180 static short hpi6000_send_host_command(struct hpi_adapter_obj *pao,
 181         u16 dsp_index, u32 host_cmd);
 182
 183 static void hpi6000_send_dsp_interrupt(struct dsp_obj *pdo);
 184
 185 static short hpi6000_send_data(struct hpi_adapter_obj *pao, u16 dsp_index,
 186         struct hpi_message *phm, struct hpi_response *phr);
 187
 188 static short hpi6000_get_data(struct hpi_adapter_obj *pao, u16 dsp_index,
 189         struct hpi_message *phm, struct hpi_response *phr);
 190
 191 static void hpi_write_word(struct dsp_obj *pdo, u32 address, u32 data);
 192
 193 static u32 hpi_read_word(struct dsp_obj *pdo, u32 address);
 194
 195 static void hpi_write_block(struct dsp_obj *pdo, u32 address, u32 *pdata,
 196         u32 length);
 197
 198 static void hpi_read_block(struct dsp_obj *pdo, u32 address, u32 *pdata,
 199         u32 length);
 200
 201 static void subsys_create_adapter(struct hpi_message *phm,
 202         struct hpi_response *phr);
 203
 204 static void subsys_delete_adapter(struct hpi_message *phm,
 205         struct hpi_response *phr);
 206
 207 static void adapter_get_asserts(struct hpi_adapter_obj *pao,
 208         struct hpi_message *phm, struct hpi_response *phr);
 209
 210 static short create_adapter_obj(struct hpi_adapter_obj *pao,
 211         u32 *pos_error_code);
 212
 213 /* local globals */
 214
 215 static u16 gw_pci_read_asserts; /* used to count PCI2040 errors */
 216 static u16 gw_pci_write_asserts;        /* used to count PCI2040 errors */
 217
 218 static void subsys_message(struct hpi_message *phm, struct hpi_response *phr)
 219 {
 220
 221         switch (phm->function) {
 222         case HPI_SUBSYS_OPEN:
 223         case HPI_SUBSYS_CLOSE:
 224         case HPI_SUBSYS_GET_INFO:
 225         case HPI_SUBSYS_DRIVER_UNLOAD:
 226         case HPI_SUBSYS_DRIVER_LOAD:
 227         case HPI_SUBSYS_FIND_ADAPTERS:
 228                 /* messages that should not get here */
 229                 phr->error = HPI_ERROR_UNIMPLEMENTED;
 230                 break;
 231         case HPI_SUBSYS_CREATE_ADAPTER:
 232                 subsys_create_adapter(phm, phr);
 233                 break;
 234         case HPI_SUBSYS_DELETE_ADAPTER:
 235                 subsys_delete_adapter(phm, phr);
 236                 break;
 237         default:
 238                 phr->error = HPI_ERROR_INVALID_FUNC;
 239                 break;
 240         }
 241 }
 242
 243 static void control_message(struct hpi_adapter_obj *pao,
 244         struct hpi_message *phm, struct hpi_response *phr)
 245 {
 246
 247         switch (phm->function) {
 248         case HPI_CONTROL_GET_STATE:
 249                 if (pao->has_control_cache) {
 250                         u16 err;
 251                         err = hpi6000_update_control_cache(pao, phm);
 252
 253                         if (err) {
 254                                 phr->error = err;
 255                                 break;
 256                         }
 257
 258                         if (hpi_check_control_cache(((struct hpi_hw_obj *)
 259                                                 pao->priv)->p_cache, phm,
 260                                         phr))
 261                                 break;
 262                 }
 263                 hw_message(pao, phm, phr);
 264                 break;
 265         case HPI_CONTROL_GET_INFO:
 266                 hw_message(pao, phm, phr);
 267                 break;
 268         case HPI_CONTROL_SET_STATE:
 269                 hw_message(pao, phm, phr);
 270                 hpi_sync_control_cache(((struct hpi_hw_obj *)pao->priv)->
 271                         p_cache, phm, phr);
 272                 break;
 273         default:
 274                 phr->error = HPI_ERROR_INVALID_FUNC;
 275                 break;
 276         }
 277 }
 278
 279 static void adapter_message(struct hpi_adapter_obj *pao,
 280         struct hpi_message *phm, struct hpi_response *phr)
 281 {
 282         switch (phm->function) {
 283         case HPI_ADAPTER_GET_INFO:
 284                 hw_message(pao, phm, phr);
 285                 break;
 286         case HPI_ADAPTER_GET_ASSERT:
 287                 adapter_get_asserts(pao, phm, phr);
 288                 break;
 289         case HPI_ADAPTER_OPEN:
 290         case HPI_ADAPTER_CLOSE:
 291         case HPI_ADAPTER_TEST_ASSERT:
 292         case HPI_ADAPTER_SELFTEST:
 293         case HPI_ADAPTER_GET_MODE:
 294         case HPI_ADAPTER_SET_MODE:
 295         case HPI_ADAPTER_FIND_OBJECT:
 296         case HPI_ADAPTER_GET_PROPERTY:
 297         case HPI_ADAPTER_SET_PROPERTY:
 298         case HPI_ADAPTER_ENUM_PROPERTY:
 299                 hw_message(pao, phm, phr);
 300                 break;
 301         default:
 302                 phr->error = HPI_ERROR_INVALID_FUNC;
 303                 break;
 304         }
 305 }
 306
 307 static void outstream_message(struct hpi_adapter_obj *pao,
 308         struct hpi_message *phm, struct hpi_response *phr)
 309 {
 310         switch (phm->function) {
 311         case HPI_OSTREAM_HOSTBUFFER_ALLOC:
 312         case HPI_OSTREAM_HOSTBUFFER_FREE:
 313                 /* Don't let these messages go to the HW function because
 314                  * they're called without allocating the spinlock.
 315                  * For the HPI6000 adapters the HW would return
 316                  * HPI_ERROR_INVALID_FUNC anyway.
 317                  */
 318                 phr->error = HPI_ERROR_INVALID_FUNC;
 319                 break;
 320         default:
 321                 hw_message(pao, phm, phr);
 322                 return;
 323         }
 324 }
 325
 326 static void instream_message(struct hpi_adapter_obj *pao,
 327         struct hpi_message *phm, struct hpi_response *phr)
 328 {
 329
 330         switch (phm->function) {
 331         case HPI_ISTREAM_HOSTBUFFER_ALLOC:
 332         case HPI_ISTREAM_HOSTBUFFER_FREE:
 333                 /* Don't let these messages go to the HW function because
 334                  * they're called without allocating the spinlock.
 335                  * For the HPI6000 adapters the HW would return
 336                  * HPI_ERROR_INVALID_FUNC anyway.
 337                  */
 338                 phr->error = HPI_ERROR_INVALID_FUNC;
 339                 break;
 340         default:
 341                 hw_message(pao, phm, phr);
 342                 return;
 343         }
 344 }
 345
 346 /************************************************************************/
 347 /** HPI_6000()
 348  * Entry point from HPIMAN
 349  * All calls to the HPI start here
 350  */
 351 void HPI_6000(struct hpi_message *phm, struct hpi_response *phr)
 352 {
 353         struct hpi_adapter_obj *pao = NULL;
 354
 355         /* subsytem messages get executed by every HPI. */
 356         /* All other messages are ignored unless the adapter index matches */
 357         /* an adapter in the HPI */
 358         HPI_DEBUG_LOG(DEBUG, "O %d,F %x\n", phm->object, phm->function);
 359
 360         /* if Dsp has crashed then do not communicate with it any more */
 361         if (phm->object != HPI_OBJ_SUBSYSTEM) {
 362                 pao = hpi_find_adapter(phm->adapter_index);
 363                 if (!pao) {
 364                         HPI_DEBUG_LOG(DEBUG,
 365                                 " %d,%d refused, for another HPI?\n",
 366                                 phm->object, phm->function);
 367                         return;
 368                 }
 369
 370                 if (pao->dsp_crashed >= 10) {
 371                         hpi_init_response(phr, phm->object, phm->function,
 372                                 HPI_ERROR_DSP_HARDWARE);
 373                         HPI_DEBUG_LOG(DEBUG, " %d,%d dsp crashed.\n",
 374                                 phm->object, phm->function);
 375                         return;
 376                 }
 377         }
 378         /* Init default response including the size field */
 379         if (phm->function != HPI_SUBSYS_CREATE_ADAPTER)
 380                 hpi_init_response(phr, phm->object, phm->function,
 381                         HPI_ERROR_PROCESSING_MESSAGE);
 382
 383         switch (phm->type) {
 384         case HPI_TYPE_MESSAGE:
 385                 switch (phm->object) {
 386                 case HPI_OBJ_SUBSYSTEM:
 387                         subsys_message(phm, phr);
 388                         break;
 389
 390                 case HPI_OBJ_ADAPTER:
 391                         phr->size =
 392                                 sizeof(struct hpi_response_header) +
 393                                 sizeof(struct hpi_adapter_res);
 394                         adapter_message(pao, phm, phr);
 395                         break;
 396
 397                 case HPI_OBJ_CONTROL:
 398                         control_message(pao, phm, phr);
 399                         break;
 400
 401                 case HPI_OBJ_OSTREAM:
 402                         outstream_message(pao, phm, phr);
 403                         break;
 404
 405                 case HPI_OBJ_ISTREAM:
 406                         instream_message(pao, phm, phr);
 407                         break;
 408
 409                 default:
 410                         hw_message(pao, phm, phr);
 411                         break;
 412                 }
 413                 break;
 414
 415         default:
 416                 phr->error = HPI_ERROR_INVALID_TYPE;
 417                 break;
 418         }
 419 }
 420
 421 /************************************************************************/
 422 /* SUBSYSTEM */
 423
 424 /* create an adapter object and initialise it based on resource information
 425  * passed in in the message
 426  * NOTE - you cannot use this function AND the FindAdapters function at the
 427  * same time, the application must use only one of them to get the adapters
 428  */
 429 static void subsys_create_adapter(struct hpi_message *phm,
 430         struct hpi_response *phr)
 431 {
 432         /* create temp adapter obj, because we don't know what index yet */
 433         struct hpi_adapter_obj ao;
 434         struct hpi_adapter_obj *pao;
 435         u32 os_error_code;
 436         short error = 0;
 437         u32 dsp_index = 0;
 438
 439         HPI_DEBUG_LOG(VERBOSE, "subsys_create_adapter\n");
 440
 441         memset(&ao, 0, sizeof(ao));
 442
 443         /* this HPI only creates adapters for TI/PCI2040 based devices */
 444         if (phm->u.s.resource.bus_type != HPI_BUS_PCI)
 445                 return;
 446         if (phm->u.s.resource.r.pci->vendor_id != HPI_PCI_VENDOR_ID_TI)
 447                 return;
 448         if (phm->u.s.resource.r.pci->device_id != HPI_PCI_DEV_ID_PCI2040)
 449                 return;
 450
 451         ao.priv = kzalloc(sizeof(struct hpi_hw_obj), GFP_KERNEL);
 452         if (!ao.priv) {
 453                 HPI_DEBUG_LOG(ERROR, "cant get mem for adapter object\n");
 454                 phr->error = HPI_ERROR_MEMORY_ALLOC;
 455                 return;
 456         }
 457
 458         /* create the adapter object based on the resource information */
 459         /*? memcpy(&ao.Pci,&phm->u.s.Resource.r.Pci,sizeof(ao.Pci)); */
 460         ao.pci = *phm->u.s.resource.r.pci;
 461
 462         error = create_adapter_obj(&ao, &os_error_code);
 463         if (!error)
 464                 error = hpi_add_adapter(&ao);
 465         if (error) {
 466                 phr->u.s.data = os_error_code;
 467                 kfree(ao.priv);
 468                 phr->error = error;
 469                 return;
 470         }
 471         /* need to update paParentAdapter */
 472         pao = hpi_find_adapter(ao.index);
 473         if (!pao) {
 474                 /* We just added this adapter, why can't we find it!? */
 475                 HPI_DEBUG_LOG(ERROR, "lost adapter after boot\n");
 476                 phr->error = 950;
 477                 return;
 478         }
 479
 480         for (dsp_index = 0; dsp_index < MAX_DSPS; dsp_index++) {
 481                 struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv;
 482                 phw->ado[dsp_index].pa_parent_adapter = pao;
 483         }
 484
 485         phr->u.s.aw_adapter_list[ao.index] = ao.adapter_type;
 486         phr->u.s.adapter_index = ao.index;
 487         phr->u.s.num_adapters++;
 488         phr->error = 0;
 489 }
 490
 491 static void subsys_delete_adapter(struct hpi_message *phm,
 492         struct hpi_response *phr)
 493 {
 494         struct hpi_adapter_obj *pao = NULL;
 495         struct hpi_hw_obj *phw;
 496
 497         pao = hpi_find_adapter(phm->adapter_index);
 498         if (!pao)
 499                 return;
 500
 501         phw = (struct hpi_hw_obj *)pao->priv;
 502
 503         if (pao->has_control_cache)
 504                 hpi_free_control_cache(phw->p_cache);
 505
 506         hpi_delete_adapter(pao);
 507         kfree(phw);
 508
 509         phr->error = 0;
 510 }
 511
 512 /* this routine is called from SubSysFindAdapter and SubSysCreateAdapter */
 513 static short create_adapter_obj(struct hpi_adapter_obj *pao,
 514         u32 *pos_error_code)
 515 {
 516         short boot_error = 0;
 517         u32 dsp_index = 0;
 518         u32 control_cache_size = 0;
 519         u32 control_cache_count = 0;
 520         struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv;
 521
 522         /* init error reporting */
 523         pao->dsp_crashed = 0;
 524
 525         /* The PCI2040 has the following address map */
 526         /* BAR0 - 4K = HPI control and status registers on PCI2040 (HPI CSR) */
 527         /* BAR1 - 32K = HPI registers on DSP */
 528         phw->dw2040_HPICSR = pao->pci.ap_mem_base[0];
 529         phw->dw2040_HPIDSP = pao->pci.ap_mem_base[1];
 530         HPI_DEBUG_LOG(VERBOSE, "csr %p, dsp %p\n", phw->dw2040_HPICSR,
 531                 phw->dw2040_HPIDSP);
 532
 533         /* set addresses for the possible DSP HPI interfaces */
 534         for (dsp_index = 0; dsp_index < MAX_DSPS; dsp_index++) {
 535                 phw->ado[dsp_index].prHPI_control =
 536                         phw->dw2040_HPIDSP + (CONTROL +
 537                         DSP_SPACING * dsp_index);
 538
 539                 phw->ado[dsp_index].prHPI_address =
 540                         phw->dw2040_HPIDSP + (ADDRESS +
 541                         DSP_SPACING * dsp_index);
 542                 phw->ado[dsp_index].prHPI_data =
 543                         phw->dw2040_HPIDSP + (DATA + DSP_SPACING * dsp_index);
 544
 545                 phw->ado[dsp_index].prHPI_data_auto_inc =
 546                         phw->dw2040_HPIDSP + (DATA_AUTOINC +
 547                         DSP_SPACING * dsp_index);
 548
 549                 HPI_DEBUG_LOG(VERBOSE, "ctl %p, adr %p, dat %p, dat++ %p\n",
 550                         phw->ado[dsp_index].prHPI_control,
 551                         phw->ado[dsp_index].prHPI_address,
 552                         phw->ado[dsp_index].prHPI_data,
 553                         phw->ado[dsp_index].prHPI_data_auto_inc);
 554
 555                 phw->ado[dsp_index].pa_parent_adapter = pao;
 556         }
 557
 558         phw->pCI2040HPI_error_count = 0;
 559         pao->has_control_cache = 0;
 560
 561         /* Set the default number of DSPs on this card */
 562         /* This is (conditionally) adjusted after bootloading */
 563         /* of the first DSP in the bootload section. */
 564         phw->num_dsp = 1;
 565
 566         boot_error = hpi6000_adapter_boot_load_dsp(pao, pos_error_code);
 567         if (boot_error)
 568                 return boot_error;
 569
 570         HPI_DEBUG_LOG(INFO, "bootload DSP OK\n");
 571
 572         phw->message_buffer_address_on_dsp = 0L;
 573         phw->response_buffer_address_on_dsp = 0L;
 574
 575         /* get info about the adapter by asking the adapter */
 576         /* send a HPI_ADAPTER_GET_INFO message */
 577         {
 578                 struct hpi_message hM;
 579                 struct hpi_response hR0;        /* response from DSP 0 */
 580                 struct hpi_response hR1;        /* response from DSP 1 */
 581                 u16 error = 0;
 582
 583                 HPI_DEBUG_LOG(VERBOSE, "send ADAPTER_GET_INFO\n");
 584                 memset(&hM, 0, sizeof(hM));
 585                 hM.type = HPI_TYPE_MESSAGE;
 586                 hM.size = sizeof(struct hpi_message);
 587                 hM.object = HPI_OBJ_ADAPTER;
 588                 hM.function = HPI_ADAPTER_GET_INFO;
 589                 hM.adapter_index = 0;
 590                 memset(&hR0, 0, sizeof(hR0));
 591                 memset(&hR1, 0, sizeof(hR1));
 592                 hR0.size = sizeof(hR0);
 593                 hR1.size = sizeof(hR1);
 594
 595                 error = hpi6000_message_response_sequence(pao, 0, &hM, &hR0);
 596                 if (hR0.error) {
 597                         HPI_DEBUG_LOG(DEBUG, "message error %d\n", hR0.error);
 598                         return hR0.error;
 599                 }
 600                 if (phw->num_dsp == 2) {
 601                         error = hpi6000_message_response_sequence(pao, 1, &hM,
 602                                 &hR1);
 603                         if (error)
 604                                 return error;
 605                 }
 606                 pao->adapter_type = hR0.u.a.adapter_type;
 607                 pao->index = hR0.u.a.adapter_index;
 608         }
 609
 610         memset(&phw->control_cache[0], 0,
 611                 sizeof(struct hpi_control_cache_single) *
 612                 HPI_NMIXER_CONTROLS);
 613         /* Read the control cache length to figure out if it is turned on */
 614         control_cache_size =
 615                 hpi_read_word(&phw->ado[0],
 616                 HPI_HIF_ADDR(control_cache_size_in_bytes));
 617         if (control_cache_size) {
 618                 control_cache_count =
 619                         hpi_read_word(&phw->ado[0],
 620                         HPI_HIF_ADDR(control_cache_count));
 621                 pao->has_control_cache = 1;
 622
 623                 phw->p_cache =
 624                         hpi_alloc_control_cache(control_cache_count,
 625                         control_cache_size, (struct hpi_control_cache_info *)
 626                         &phw->control_cache[0]
 627                         );
 628         } else
 629                 pao->has_control_cache = 0;
 630
 631         HPI_DEBUG_LOG(DEBUG, "get adapter info ASI%04X index %d\n",
 632                 pao->adapter_type, pao->index);
 633         pao->open = 0;  /* upon creation the adapter is closed */
 634         return 0;
 635 }
 636
 637 /************************************************************************/
 638 /* ADAPTER */
 639
 640 static void adapter_get_asserts(struct hpi_adapter_obj *pao,
 641         struct hpi_message *phm, struct hpi_response *phr)
 642 {
 643 #ifndef HIDE_PCI_ASSERTS
 644         /* if we have PCI2040 asserts then collect them */
 645         if ((gw_pci_read_asserts > 0) || (gw_pci_write_asserts > 0)) {
 646                 phr->u.a.serial_number =
 647                         gw_pci_read_asserts * 100 + gw_pci_write_asserts;
 648                 phr->u.a.adapter_index = 1;     /* assert count */
 649                 phr->u.a.adapter_type = -1;     /* "dsp index" */
 650                 strcpy(phr->u.a.sz_adapter_assert, "PCI2040 error");
 651                 gw_pci_read_asserts = 0;
 652                 gw_pci_write_asserts = 0;
 653                 phr->error = 0;
 654         } else
 655 #endif
 656                 hw_message(pao, phm, phr);      /*get DSP asserts */
 657
 658         return;
 659 }
 660
 661 /************************************************************************/
 662 /* LOW-LEVEL */
 663
 664 static short hpi6000_adapter_boot_load_dsp(struct hpi_adapter_obj *pao,
 665         u32 *pos_error_code)
 666 {
 667         struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv;
 668         short error;
 669         u32 timeout;
 670         u32 read = 0;
 671         u32 i = 0;
 672         u32 data = 0;
 673         u32 j = 0;
 674         u32 test_addr = 0x80000000;
 675         u32 test_data = 0x00000001;
 676         u32 dw2040_reset = 0;
 677         u32 dsp_index = 0;
 678         u32 endian = 0;
 679         u32 adapter_info = 0;
 680         u32 delay = 0;
 681
 682         struct dsp_code dsp_code;
 683         u16 boot_load_family = 0;
 684
 685         /* NOTE don't use wAdapterType in this routine. It is not setup yet */
 686
 687         switch (pao->pci.subsys_device_id) {
 688         case 0x5100:
 689         case 0x5110:    /* ASI5100 revB or higher with C6711D */
 690         case 0x6100:
 691         case 0x6200:
 692                 boot_load_family = HPI_ADAPTER_FAMILY_ASI(0x6200);
 693                 break;
 694         default:
 695                 return HPI6000_ERROR_UNHANDLED_SUBSYS_ID;
 696         }
 697
 698         /* reset all DSPs, indicate two DSPs are present
 699          * set RST3-=1 to disconnect HAD8 to set DSP in little endian mode
 700          */
 701         endian = 0;
 702         dw2040_reset = 0x0003000F;
 703         iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET);
 704
 705         /* read back register to make sure PCI2040 chip is functioning
 706          * note that bits 4..15 are read-only and so should always return zero,
 707          * even though we wrote 1 to them
 708          */
 709         for (i = 0; i < 1000; i++)
 710                 delay = ioread32(phw->dw2040_HPICSR + HPI_RESET);
 711         if (delay != dw2040_reset) {
 712                 HPI_DEBUG_LOG(ERROR, "INIT_PCI2040 %x %x\n", dw2040_reset,
 713                         delay);
 714                 return HPI6000_ERROR_INIT_PCI2040;
 715         }
 716
 717         /* Indicate that DSP#0,1 is a C6X */
 718         iowrite32(0x00000003, phw->dw2040_HPICSR + HPI_DATA_WIDTH);
 719         /* set Bit30 and 29 - which will prevent Target aborts from being
 720          * issued upon HPI or GP error
 721          */
 722         iowrite32(0x60000000, phw->dw2040_HPICSR + INTERRUPT_MASK_SET);
 723
 724         /* isolate DSP HAD8 line from PCI2040 so that
 725          * Little endian can be set by pullup
 726          */
 727         dw2040_reset = dw2040_reset & (~(endian << 3));
 728         iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET);
 729
 730         phw->ado[0].c_dsp_rev = 'B';    /* revB */
 731         phw->ado[1].c_dsp_rev = 'B';    /* revB */
 732
 733         /*Take both DSPs out of reset, setting HAD8 to the correct Endian */
 734         dw2040_reset = dw2040_reset & (~0x00000001);    /* start DSP 0 */
 735         iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET);
 736         dw2040_reset = dw2040_reset & (~0x00000002);    /* start DSP 1 */
 737         iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET);
 738
 739         /* set HAD8 back to PCI2040, now that DSP set to little endian mode */
 740         dw2040_reset = dw2040_reset & (~0x00000008);
 741         iowrite32(dw2040_reset, phw->dw2040_HPICSR + HPI_RESET);
 742         /*delay to allow DSP to get going */
 743         for (i = 0; i < 100; i++)
 744                 delay = ioread32(phw->dw2040_HPICSR + HPI_RESET);
 745
 746         /* loop through all DSPs, downloading DSP code */
 747         for (dsp_index = 0; dsp_index < phw->num_dsp; dsp_index++) {
 748                 struct dsp_obj *pdo = &phw->ado[dsp_index];
 749
 750                 /* configure DSP so that we download code into the SRAM */
 751                 /* set control reg for little endian, HWOB=1 */
 752                 iowrite32(0x00010001, pdo->prHPI_control);
 753
 754                 /* test access to the HPI address register (HPIA) */
 755                 test_data = 0x00000001;
 756                 for (j = 0; j < 32; j++) {
 757                         iowrite32(test_data, pdo->prHPI_address);
 758                         data = ioread32(pdo->prHPI_address);
 759                         if (data != test_data) {
 760                                 HPI_DEBUG_LOG(ERROR, "INIT_DSPHPI %x %x %x\n",
 761                                         test_data, data, dsp_index);
 762                                 return HPI6000_ERROR_INIT_DSPHPI;
 763                         }
 764                         test_data = test_data << 1;
 765                 }
 766
 767 /* if C6713 the setup PLL to generate 225MHz from 25MHz.
 768 * Since the PLLDIV1 read is sometimes wrong, even on a C6713,
 769 * we're going to do this unconditionally
 770 */
 771 /* PLLDIV1 should have a value of 8000 after reset */
 772 /*
 773         if (HpiReadWord(pdo,0x01B7C118) == 0x8000)
 774 */
 775                 {
 776                         /* C6713 datasheet says we cannot program PLL from HPI,
 777                          * and indeed if we try to set the PLL multiply from the
 778                          * HPI, the PLL does not seem to lock,
 779                          * so we enable the PLL and use the default of x 7
 780                          */
 781                         /* bypass PLL */
 782                         hpi_write_word(pdo, 0x01B7C100, 0x0000);
 783                         for (i = 0; i < 100; i++)
 784                                 delay = ioread32(phw->dw2040_HPICSR +
 785                                         HPI_RESET);
 786
 787                         /*  ** use default of PLL  x7 ** */
 788                         /* EMIF = 225/3=75MHz */
 789                         hpi_write_word(pdo, 0x01B7C120, 0x8002);
 790                         /* peri = 225/2 */
 791                         hpi_write_word(pdo, 0x01B7C11C, 0x8001);
 792                         /* cpu  = 225/1 */
 793                         hpi_write_word(pdo, 0x01B7C118, 0x8000);
 794                         /* ~200us delay */
 795                         for (i = 0; i < 2000; i++)
 796                                 delay = ioread32(phw->dw2040_HPICSR +
 797                                         HPI_RESET);
 798                         /* PLL not bypassed */
 799                         hpi_write_word(pdo, 0x01B7C100, 0x0001);
 800                         /* ~200us delay */
 801                         for (i = 0; i < 2000; i++)
 802                                 delay = ioread32(phw->dw2040_HPICSR +
 803                                         HPI_RESET);
 804                 }
 805
 806                 /* test r/w to internal DSP memory
 807                  * C6711 has L2 cache mapped to 0x0 when reset
 808                  *
 809                  *  revB - because of bug 3.0.1 last HPI read
 810                  * (before HPI address issued) must be non-autoinc
 811                  */
 812                 /* test each bit in the 32bit word */
 813                 for (i = 0; i < 100; i++) {
 814                         test_addr = 0x00000000;
 815                         test_data = 0x00000001;
 816                         for (j = 0; j < 32; j++) {
 817                                 hpi_write_word(pdo, test_addr + i, test_data);
 818                                 data = hpi_read_word(pdo, test_addr + i);
 819                                 if (data != test_data) {
 820                                         HPI_DEBUG_LOG(ERROR,
 821                                                 "DSP mem %x %x %x %x\n",
 822                                                 test_addr + i, test_data,
 823                                                 data, dsp_index);
 824
 825                                         return HPI6000_ERROR_INIT_DSPINTMEM;
 826                                 }
 827                                 test_data = test_data << 1;
 828                         }
 829                 }
 830
 831                 /* memory map of ASI6200
 832                    00000000-0000FFFF    16Kx32 internal program
 833                    01800000-019FFFFF    Internal peripheral
 834                    80000000-807FFFFF    CE0 2Mx32 SDRAM running @ 100MHz
 835                    90000000-9000FFFF    CE1 Async peripherals:
 836
 837                    EMIF config
 838                    ------------
 839                    Global EMIF control
 840                    0 -
 841                    1 -
 842                    2 -
 843                    3 CLK2EN = 1   CLKOUT2 enabled
 844                    4 CLK1EN = 0   CLKOUT1 disabled
 845                    5 EKEN = 1 <--!! C6713 specific, enables ECLKOUT
 846                    6 -
 847                    7 NOHOLD = 1   external HOLD disabled
 848                    8 HOLDA = 0    HOLDA output is low
 849                    9 HOLD = 0             HOLD input is low
 850                    10 ARDY = 1    ARDY input is high
 851                    11 BUSREQ = 0   BUSREQ output is low
 852                    12,13 Reserved = 1
 853                  */
 854                 hpi_write_word(pdo, 0x01800000, 0x34A8);
 855
 856                 /* EMIF CE0 setup - 2Mx32 Sync DRAM
 857                    31..28       Wr setup
 858                    27..22       Wr strobe
 859                    21..20       Wr hold
 860                    19..16       Rd setup
 861                    15..14       -
 862                    13..8        Rd strobe
 863                    7..4         MTYPE   0011            Sync DRAM 32bits
 864                    3            Wr hold MSB
 865                    2..0         Rd hold
 866                  */
 867                 hpi_write_word(pdo, 0x01800008, 0x00000030);
 868
 869                 /* EMIF SDRAM Extension
 870                    31-21        0
 871                    20           WR2RD = 0
 872                    19-18        WR2DEAC = 1
 873                    17           WR2WR = 0
 874                    16-15        R2WDQM = 2
 875                    14-12        RD2WR = 4
 876                    11-10        RD2DEAC = 1
 877                    9            RD2RD = 1
 878                    8-7          THZP = 10b
 879                    6-5          TWR  = 2-1 = 01b (tWR = 10ns)
 880                    4            TRRD = 0b = 2 ECLK (tRRD = 14ns)
 881                    3-1          TRAS = 5-1 = 100b (Tras=42ns = 5 ECLK)
 882                    1            CAS latency = 3 ECLK
 883                    (for Micron 2M32-7 operating at 100Mhz)
 884                  */
 885
 886                 /* need to use this else DSP code crashes */
 887                 hpi_write_word(pdo, 0x01800020, 0x001BDF29);
 888
 889                 /* EMIF SDRAM control - set up for a 2Mx32 SDRAM (512x32x4 bank)
 890                    31           -               -
 891                    30           SDBSZ   1               4 bank
 892                    29..28       SDRSZ   00              11 row address pins
 893                    27..26       SDCSZ   01              8 column address pins
 894                    25           RFEN    1               refersh enabled
 895                    24           INIT    1               init SDRAM
 896                    23..20       TRCD    0001
 897                    19..16       TRP             0001
 898                    15..12       TRC             0110
 899                    11..0        -               -
 900                  */
 901                 /*      need to use this else DSP code crashes */
 902                 hpi_write_word(pdo, 0x01800018, 0x47117000);
 903
 904                 /* EMIF SDRAM Refresh Timing */
 905                 hpi_write_word(pdo, 0x0180001C, 0x00000410);
 906
 907                 /*MIF CE1 setup - Async peripherals
 908                    @100MHz bus speed, each cycle is 10ns,
 909                    31..28       Wr setup  = 1
 910                    27..22       Wr strobe = 3                   30ns
 911                    21..20       Wr hold = 1
 912                    19..16       Rd setup =1
 913                    15..14       Ta = 2
 914                    13..8        Rd strobe = 3                   30ns
 915                    7..4         MTYPE   0010            Async 32bits
 916                    3            Wr hold MSB =0
 917                    2..0         Rd hold = 1
 918                  */
 919                 {
 920                         u32 cE1 =
 921                                 (1L << 28) | (3L << 22) | (1L << 20) | (1L <<
 922                                 16) | (2L << 14) | (3L << 8) | (2L << 4) | 1L;
 923                         hpi_write_word(pdo, 0x01800004, cE1);
 924                 }
 925
 926                 /* delay a little to allow SDRAM and DSP to "get going" */
 927
 928                 for (i = 0; i < 1000; i++)
 929                         delay = ioread32(phw->dw2040_HPICSR + HPI_RESET);
 930
 931                 /* test access to SDRAM */
 932                 {
 933                         test_addr = 0x80000000;
 934                         test_data = 0x00000001;
 935                         /* test each bit in the 32bit word */
 936                         for (j = 0; j < 32; j++) {
 937                                 hpi_write_word(pdo, test_addr, test_data);
 938                                 data = hpi_read_word(pdo, test_addr);
 939                                 if (data != test_data) {
 940                                         HPI_DEBUG_LOG(ERROR,
 941                                                 "DSP dram %x %x %x %x\n",
 942                                                 test_addr, test_data, data,
 943                                                 dsp_index);
 944
 945                                         return HPI6000_ERROR_INIT_SDRAM1;
 946                                 }
 947                                 test_data = test_data << 1;
 948                         }
 949                         /* test every Nth address in the DRAM */
 950 #define DRAM_SIZE_WORDS 0x200000        /*2_mx32 */
 951 #define DRAM_INC 1024
 952                         test_addr = 0x80000000;
 953                         test_data = 0x0;
 954                         for (i = 0; i < DRAM_SIZE_WORDS; i = i + DRAM_INC) {
 955                                 hpi_write_word(pdo, test_addr + i, test_data);
 956                                 test_data++;
 957                         }
 958                         test_addr = 0x80000000;
 959                         test_data = 0x0;
 960                         for (i = 0; i < DRAM_SIZE_WORDS; i = i + DRAM_INC) {
 961                                 data = hpi_read_word(pdo, test_addr + i);
 962                                 if (data != test_data) {
 963                                         HPI_DEBUG_LOG(ERROR,
 964                                                 "DSP dram %x %x %x %x\n",
 965                                                 test_addr + i, test_data,
 966                                                 data, dsp_index);
 967                                         return HPI6000_ERROR_INIT_SDRAM2;
 968                                 }
 969                                 test_data++;
 970                         }
 971
 972                 }
 973
 974                 /* write the DSP code down into the DSPs memory */
 975                 /*HpiDspCode_Open(nBootLoadFamily,&DspCode,pdwOsErrorCode); */
 976                 dsp_code.ps_dev = pao->pci.p_os_data;
 977
 978                 error = hpi_dsp_code_open(boot_load_family, &dsp_code,
 979                         pos_error_code);
 980
 981                 if (error)
 982                         return error;
 983
 984                 while (1) {
 985                         u32 length;
 986                         u32 address;
 987                         u32 type;
 988                         u32 *pcode;
 989
 990                         error = hpi_dsp_code_read_word(&dsp_code, &length);
 991                         if (error)
 992                                 break;
 993                         if (length == 0xFFFFFFFF)
 994                                 break;  /* end of code */
 995
 996                         error = hpi_dsp_code_read_word(&dsp_code, &address);
 997                         if (error)
 998                                 break;
 999                         error = hpi_dsp_code_read_word(&dsp_code, &type);
1000                         if (error)
1001                                 break;
1002                         error = hpi_dsp_code_read_block(length, &dsp_code,
1003                                 &pcode);
1004                         if (error)
1005                                 break;
1006                         error = hpi6000_dsp_block_write32(pao, (u16)dsp_index,
1007                                 address, pcode, length);
1008                         if (error)
1009                                 break;
1010                 }
1011
1012                 if (error) {
1013                         hpi_dsp_code_close(&dsp_code);
1014                         return error;
1015                 }
1016                 /* verify that code was written correctly */
1017                 /* this time through, assume no errors in DSP code file/array */
1018                 hpi_dsp_code_rewind(&dsp_code);
1019                 while (1) {
1020                         u32 length;
1021                         u32 address;
1022                         u32 type;
1023                         u32 *pcode;
1024
1025                         hpi_dsp_code_read_word(&dsp_code, &length);
1026                         if (length == 0xFFFFFFFF)
1027                                 break;  /* end of code */
1028
1029                         hpi_dsp_code_read_word(&dsp_code, &address);
1030                         hpi_dsp_code_read_word(&dsp_code, &type);
1031                         hpi_dsp_code_read_block(length, &dsp_code, &pcode);
1032
1033                         for (i = 0; i < length; i++) {
1034                                 data = hpi_read_word(pdo, address);
1035                                 if (data != *pcode) {
1036                                         error = HPI6000_ERROR_INIT_VERIFY;
1037                                         HPI_DEBUG_LOG(ERROR,
1038                                                 "DSP verify %x %x %x %x\n",
1039                                                 address, *pcode, data,
1040                                                 dsp_index);
1041                                         break;
1042                                 }
1043                                 pcode++;
1044                                 address += 4;
1045                         }
1046                         if (error)
1047                                 break;
1048                 }
1049                 hpi_dsp_code_close(&dsp_code);
1050                 if (error)
1051                         return error;
1052
1053                 /* zero out the hostmailbox */
1054                 {
1055                         u32 address = HPI_HIF_ADDR(host_cmd);
1056                         for (i = 0; i < 4; i++) {
1057                                 hpi_write_word(pdo, address, 0);
1058                                 address += 4;
1059                         }
1060                 }
1061                 /* write the DSP number into the hostmailbox */
1062                 /* structure before starting the DSP */
1063                 hpi_write_word(pdo, HPI_HIF_ADDR(dsp_number), dsp_index);
1064
1065                 /* write the DSP adapter Info into the */
1066                 /* hostmailbox before starting the DSP */
1067                 if (dsp_index > 0)
1068                         hpi_write_word(pdo, HPI_HIF_ADDR(adapter_info),
1069                                 adapter_info);
1070
1071                 /* step 3. Start code by sending interrupt */
1072                 iowrite32(0x00030003, pdo->prHPI_control);
1073                 for (i = 0; i < 10000; i++)
1074                         delay = ioread32(phw->dw2040_HPICSR + HPI_RESET);
1075
1076                 /* wait for a non-zero value in hostcmd -
1077                  * indicating initialization is complete
1078                  *
1079                  * Init could take a while if DSP checks SDRAM memory
1080                  * Was 200000. Increased to 2000000 for ASI8801 so we
1081                  * don't get 938 errors.
1082                  */
1083                 timeout = 2000000;
1084                 while (timeout) {
1085                         do {
1086                                 read = hpi_read_word(pdo,
1087                                         HPI_HIF_ADDR(host_cmd));
1088                         } while (--timeout
1089                                 && hpi6000_check_PCI2040_error_flag(pao,
1090                                         H6READ));
1091
1092                         if (read)
1093                                 break;
1094                         /* The following is a workaround for bug #94:
1095                          * Bluescreen on install and subsequent boots on a
1096                          * DELL PowerEdge 600SC PC with 1.8GHz P4 and
1097                          * ServerWorks chipset. Without this delay the system
1098                          * locks up with a bluescreen (NOT GPF or pagefault).
1099                          */
1100                         else
1101                                 hpios_delay_micro_seconds(1000);
1102                 }
1103                 if (timeout == 0)
1104                         return HPI6000_ERROR_INIT_NOACK;
1105
1106                 /* read the DSP adapter Info from the */
1107                 /* hostmailbox structure after starting the DSP */
1108                 if (dsp_index == 0) {
1109                         /*u32 dwTestData=0; */
1110                         u32 mask = 0;
1111
1112                         adapter_info =
1113                                 hpi_read_word(pdo,
1114                                 HPI_HIF_ADDR(adapter_info));
1115                         if (HPI_ADAPTER_FAMILY_ASI
1116                                 (HPI_HIF_ADAPTER_INFO_EXTRACT_ADAPTER
1117                                         (adapter_info)) ==
1118                                 HPI_ADAPTER_FAMILY_ASI(0x6200))
1119                                 /* all 6200 cards have this many DSPs */
1120                                 phw->num_dsp = 2;
1121
1122                         /* test that the PLD is programmed */
1123                         /* and we can read/write 24bits */
1124 #define PLD_BASE_ADDRESS 0x90000000L    /*for ASI6100/6200/8800 */
1125
1126                         switch (boot_load_family) {
1127                         case HPI_ADAPTER_FAMILY_ASI(0x6200):
1128                                 /* ASI6100/6200 has 24bit path to FPGA */
1129                                 mask = 0xFFFFFF00L;
1130                                 /* ASI5100 uses AX6 code, */
1131                                 /* but has no PLD r/w register to test */
1132                                 if (HPI_ADAPTER_FAMILY_ASI(pao->pci.
1133                                                 subsys_device_id) ==
1134                                         HPI_ADAPTER_FAMILY_ASI(0x5100))
1135                                         mask = 0x00000000L;
1136                                 break;
1137                         case HPI_ADAPTER_FAMILY_ASI(0x8800):
1138                                 /* ASI8800 has 16bit path to FPGA */
1139                                 mask = 0xFFFF0000L;
1140                                 break;
1141                         }
1142                         test_data = 0xAAAAAA00L & mask;
1143                         /* write to 24 bit Debug register (D31-D8) */
1144                         hpi_write_word(pdo, PLD_BASE_ADDRESS + 4L, test_data);
1145                         read = hpi_read_word(pdo,
1146                                 PLD_BASE_ADDRESS + 4L) & mask;
1147                         if (read != test_data) {
1148                                 HPI_DEBUG_LOG(ERROR, "PLD %x %x\n", test_data,
1149                                         read);
1150                                 return HPI6000_ERROR_INIT_PLDTEST1;
1151                         }
1152                         test_data = 0x55555500L & mask;
1153                         hpi_write_word(pdo, PLD_BASE_ADDRESS + 4L, test_data);
1154                         read = hpi_read_word(pdo,
1155                                 PLD_BASE_ADDRESS + 4L) & mask;
1156                         if (read != test_data) {
1157                                 HPI_DEBUG_LOG(ERROR, "PLD %x %x\n", test_data,
1158                                         read);
1159                                 return HPI6000_ERROR_INIT_PLDTEST2;
1160                         }
1161                 }
1162         }       /* for numDSP */
1163         return 0;
1164 }
1165
1166 #define PCI_TIMEOUT 100
1167
1168 static int hpi_set_address(struct dsp_obj *pdo, u32 address)
1169 {
1170         u32 timeout = PCI_TIMEOUT;
1171
1172         do {
1173                 iowrite32(address, pdo->prHPI_address);
1174         } while (hpi6000_check_PCI2040_error_flag(pdo->pa_parent_adapter,
1175                         H6WRITE)
1176                 && --timeout);
1177
1178         if (timeout)
1179                 return 0;
1180
1181         return 1;
1182 }
1183
1184 /* write one word to the HPI port */
1185 static void hpi_write_word(struct dsp_obj *pdo, u32 address, u32 data)
1186 {
1187         if (hpi_set_address(pdo, address))
1188                 return;
1189         iowrite32(data, pdo->prHPI_data);
1190 }
1191
1192 /* read one word from the HPI port */
1193 static u32 hpi_read_word(struct dsp_obj *pdo, u32 address)
1194 {
1195         u32 data = 0;
1196
1197         if (hpi_set_address(pdo, address))
1198                 return 0;       /*? no way to return error */
1199
1200         /* take care of errata in revB DSP (2.0.1) */
1201         data = ioread32(pdo->prHPI_data);
1202         return data;
1203 }
1204
1205 /* write a block of 32bit words to the DSP HPI port using auto-inc mode */
1206 static void hpi_write_block(struct dsp_obj *pdo, u32 address, u32 *pdata,
1207         u32 length)
1208 {
1209         u16 length16 = length - 1;
1210
1211         if (length == 0)
1212                 return;
1213
1214         if (hpi_set_address(pdo, address))
1215                 return;
1216
1217         iowrite32_rep(pdo->prHPI_data_auto_inc, pdata, length16);
1218
1219         /* take care of errata in revB DSP (2.0.1) */
1220         /* must end with non auto-inc */
1221         iowrite32(*(pdata + length - 1), pdo->prHPI_data);
1222 }
1223
1224 /** read a block of 32bit words from the DSP HPI port using auto-inc mode
1225  */
1226 static void hpi_read_block(struct dsp_obj *pdo, u32 address, u32 *pdata,
1227         u32 length)
1228 {
1229         u16 length16 = length - 1;
1230
1231         if (length == 0)
1232                 return;
1233
1234         if (hpi_set_address(pdo, address))
1235                 return;
1236
1237         ioread32_rep(pdo->prHPI_data_auto_inc, pdata, length16);
1238
1239         /* take care of errata in revB DSP (2.0.1) */
1240         /* must end with non auto-inc */
1241         *(pdata + length - 1) = ioread32(pdo->prHPI_data);
1242 }
1243
1244 static u16 hpi6000_dsp_block_write32(struct hpi_adapter_obj *pao,
1245         u16 dsp_index, u32 hpi_address, u32 *source, u32 count)
1246 {
1247         struct dsp_obj *pdo =
1248                 &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index];
1249         u32 time_out = PCI_TIMEOUT;
1250         int c6711_burst_size = 128;
1251         u32 local_hpi_address = hpi_address;
1252         int local_count = count;
1253         int xfer_size;
1254         u32 *pdata = source;
1255
1256         while (local_count) {
1257                 if (local_count > c6711_burst_size)
1258                         xfer_size = c6711_burst_size;
1259                 else
1260                         xfer_size = local_count;
1261
1262                 time_out = PCI_TIMEOUT;
1263                 do {
1264                         hpi_write_block(pdo, local_hpi_address, pdata,
1265                                 xfer_size);
1266                 } while (hpi6000_check_PCI2040_error_flag(pao, H6WRITE)
1267                         && --time_out);
1268
1269                 if (!time_out)
1270                         break;
1271                 pdata += xfer_size;
1272                 local_hpi_address += sizeof(u32) * xfer_size;
1273                 local_count -= xfer_size;
1274         }
1275
1276         if (time_out)
1277                 return 0;
1278         else
1279                 return 1;
1280 }
1281
1282 static u16 hpi6000_dsp_block_read32(struct hpi_adapter_obj *pao,
1283         u16 dsp_index, u32 hpi_address, u32 *dest, u32 count)
1284 {
1285         struct dsp_obj *pdo =
1286                 &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index];
1287         u32 time_out = PCI_TIMEOUT;
1288         int c6711_burst_size = 16;
1289         u32 local_hpi_address = hpi_address;
1290         int local_count = count;
1291         int xfer_size;
1292         u32 *pdata = dest;
1293         u32 loop_count = 0;
1294
1295         while (local_count) {
1296                 if (local_count > c6711_burst_size)
1297                         xfer_size = c6711_burst_size;
1298                 else
1299                         xfer_size = local_count;
1300
1301                 time_out = PCI_TIMEOUT;
1302                 do {
1303                         hpi_read_block(pdo, local_hpi_address, pdata,
1304                                 xfer_size);
1305                 } while (hpi6000_check_PCI2040_error_flag(pao, H6READ)
1306                         && --time_out);
1307                 if (!time_out)
1308                         break;
1309
1310                 pdata += xfer_size;
1311                 local_hpi_address += sizeof(u32) * xfer_size;
1312                 local_count -= xfer_size;
1313                 loop_count++;
1314         }
1315
1316         if (time_out)
1317                 return 0;
1318         else
1319                 return 1;
1320 }
1321
1322 static short hpi6000_message_response_sequence(struct hpi_adapter_obj *pao,
1323         u16 dsp_index, struct hpi_message *phm, struct hpi_response *phr)
1324 {
1325         struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv;
1326         struct dsp_obj *pdo = &phw->ado[dsp_index];
1327         u32 timeout;
1328         u16 ack;
1329         u32 address;
1330         u32 length;
1331         u32 *p_data;
1332         u16 error = 0;
1333
1334         /* does the DSP we are referencing exist? */
1335         if (dsp_index >= phw->num_dsp)
1336                 return HPI6000_ERROR_MSG_INVALID_DSP_INDEX;
1337
1338         ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_IDLE);
1339         if (ack & HPI_HIF_ERROR_MASK) {
1340                 pao->dsp_crashed++;
1341                 return HPI6000_ERROR_MSG_RESP_IDLE_TIMEOUT;
1342         }
1343         pao->dsp_crashed = 0;
1344
1345         /* send the message */
1346
1347         /* get the address and size */
1348         if (phw->message_buffer_address_on_dsp == 0) {
1349                 timeout = TIMEOUT;
1350                 do {
1351                         address =
1352                                 hpi_read_word(pdo,
1353                                 HPI_HIF_ADDR(message_buffer_address));
1354                         phw->message_buffer_address_on_dsp = address;
1355                 } while (hpi6000_check_PCI2040_error_flag(pao, H6READ)
1356                         && --timeout);
1357                 if (!timeout)
1358                         return HPI6000_ERROR_MSG_GET_ADR;
1359         } else
1360                 address = phw->message_buffer_address_on_dsp;
1361
1362         /*        dwLength = sizeof(struct hpi_message); */
1363         length = phm->size;
1364
1365         /* send it */
1366         p_data = (u32 *)phm;
1367         if (hpi6000_dsp_block_write32(pao, dsp_index, address, p_data,
1368                         (u16)length / 4))
1369                 return HPI6000_ERROR_MSG_RESP_BLOCKWRITE32;
1370
1371         if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_GET_RESP))
1372                 return HPI6000_ERROR_MSG_RESP_GETRESPCMD;
1373         hpi6000_send_dsp_interrupt(pdo);
1374
1375         ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_GET_RESP);
1376         if (ack & HPI_HIF_ERROR_MASK)
1377                 return HPI6000_ERROR_MSG_RESP_GET_RESP_ACK;
1378
1379         /* get the address and size */
1380         if (phw->response_buffer_address_on_dsp == 0) {
1381                 timeout = TIMEOUT;
1382                 do {
1383                         address =
1384                                 hpi_read_word(pdo,
1385                                 HPI_HIF_ADDR(response_buffer_address));
1386                 } while (hpi6000_check_PCI2040_error_flag(pao, H6READ)
1387                         && --timeout);
1388                 phw->response_buffer_address_on_dsp = address;
1389
1390                 if (!timeout)
1391                         return HPI6000_ERROR_RESP_GET_ADR;
1392         } else
1393                 address = phw->response_buffer_address_on_dsp;
1394
1395         /* read the length of the response back from the DSP */
1396         timeout = TIMEOUT;
1397         do {
1398                 length = hpi_read_word(pdo, HPI_HIF_ADDR(length));
1399         } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) && --timeout);
1400         if (!timeout)
1401                 length = sizeof(struct hpi_response);
1402
1403         /* get it */
1404         p_data = (u32 *)phr;
1405         if (hpi6000_dsp_block_read32(pao, dsp_index, address, p_data,
1406                         (u16)length / 4))
1407                 return HPI6000_ERROR_MSG_RESP_BLOCKREAD32;
1408
1409         /* set i/f back to idle */
1410         if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_IDLE))
1411                 return HPI6000_ERROR_MSG_RESP_IDLECMD;
1412         hpi6000_send_dsp_interrupt(pdo);
1413
1414         error = hpi_validate_response(phm, phr);
1415         return error;
1416 }
1417
1418 /* have to set up the below defines to match stuff in the MAP file */
1419
1420 #define MSG_ADDRESS (HPI_HIF_BASE+0x18)
1421 #define MSG_LENGTH 11
1422 #define RESP_ADDRESS (HPI_HIF_BASE+0x44)
1423 #define RESP_LENGTH 16
1424 #define QUEUE_START  (HPI_HIF_BASE+0x88)
1425 #define QUEUE_SIZE 0x8000
1426
1427 static short hpi6000_send_data_check_adr(u32 address, u32 length_in_dwords)
1428 {
1429 /*#define CHECKING       // comment this line in to enable checking */
1430 #ifdef CHECKING
1431         if (address < (u32)MSG_ADDRESS)
1432                 return 0;
1433         if (address > (u32)(QUEUE_START + QUEUE_SIZE))
1434                 return 0;
1435         if ((address + (length_in_dwords << 2)) >
1436                 (u32)(QUEUE_START + QUEUE_SIZE))
1437                 return 0;
1438 #else
1439         (void)address;
1440         (void)length_in_dwords;
1441         return 1;
1442 #endif
1443 }
1444
1445 static short hpi6000_send_data(struct hpi_adapter_obj *pao, u16 dsp_index,
1446         struct hpi_message *phm, struct hpi_response *phr)
1447 {
1448         struct dsp_obj *pdo =
1449                 &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index];
1450         u32 data_sent = 0;
1451         u16 ack;
1452         u32 length, address;
1453         u32 *p_data = (u32 *)phm->u.d.u.data.pb_data;
1454         u16 time_out = 8;
1455
1456         (void)phr;
1457
1458         /* round dwDataSize down to nearest 4 bytes */
1459         while ((data_sent < (phm->u.d.u.data.data_size & ~3L))
1460                 && --time_out) {
1461                 ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_IDLE);
1462                 if (ack & HPI_HIF_ERROR_MASK)
1463                         return HPI6000_ERROR_SEND_DATA_IDLE_TIMEOUT;
1464
1465                 if (hpi6000_send_host_command(pao, dsp_index,
1466                                 HPI_HIF_SEND_DATA))
1467                         return HPI6000_ERROR_SEND_DATA_CMD;
1468
1469                 hpi6000_send_dsp_interrupt(pdo);
1470
1471                 ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_SEND_DATA);
1472
1473                 if (ack & HPI_HIF_ERROR_MASK)
1474                         return HPI6000_ERROR_SEND_DATA_ACK;
1475
1476                 do {
1477                         /* get the address and size */
1478                         address = hpi_read_word(pdo, HPI_HIF_ADDR(address));
1479                         /* DSP returns number of DWORDS */
1480                         length = hpi_read_word(pdo, HPI_HIF_ADDR(length));
1481                 } while (hpi6000_check_PCI2040_error_flag(pao, H6READ));
1482
1483                 if (!hpi6000_send_data_check_adr(address, length))
1484                         return HPI6000_ERROR_SEND_DATA_ADR;
1485
1486                 /* send the data. break data into 512 DWORD blocks (2K bytes)
1487                  * and send using block write. 2Kbytes is the max as this is the
1488                  * memory window given to the HPI data register by the PCI2040
1489                  */
1490
1491                 {
1492                         u32 len = length;
1493                         u32 blk_len = 512;
1494                         while (len) {
1495                                 if (len < blk_len)
1496                                         blk_len = len;
1497                                 if (hpi6000_dsp_block_write32(pao, dsp_index,
1498                                                 address, p_data, blk_len))
1499                                         return HPI6000_ERROR_SEND_DATA_WRITE;
1500                                 address += blk_len * 4;
1501                                 p_data += blk_len;
1502                                 len -= blk_len;
1503                         }
1504                 }
1505
1506                 if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_IDLE))
1507                         return HPI6000_ERROR_SEND_DATA_IDLECMD;
1508
1509                 hpi6000_send_dsp_interrupt(pdo);
1510
1511                 data_sent += length * 4;
1512         }
1513         if (!time_out)
1514                 return HPI6000_ERROR_SEND_DATA_TIMEOUT;
1515         return 0;
1516 }
1517
1518 static short hpi6000_get_data(struct hpi_adapter_obj *pao, u16 dsp_index,
1519         struct hpi_message *phm, struct hpi_response *phr)
1520 {
1521         struct dsp_obj *pdo =
1522                 &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index];
1523         u32 data_got = 0;
1524         u16 ack;
1525         u32 length, address;
1526         u32 *p_data = (u32 *)phm->u.d.u.data.pb_data;
1527
1528         (void)phr;      /* this parameter not used! */
1529
1530         /* round dwDataSize down to nearest 4 bytes */
1531         while (data_got < (phm->u.d.u.data.data_size & ~3L)) {
1532                 ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_IDLE);
1533                 if (ack & HPI_HIF_ERROR_MASK)
1534                         return HPI6000_ERROR_GET_DATA_IDLE_TIMEOUT;
1535
1536                 if (hpi6000_send_host_command(pao, dsp_index,
1537                                 HPI_HIF_GET_DATA))
1538                         return HPI6000_ERROR_GET_DATA_CMD;
1539                 hpi6000_send_dsp_interrupt(pdo);
1540
1541                 ack = hpi6000_wait_dsp_ack(pao, dsp_index, HPI_HIF_GET_DATA);
1542
1543                 if (ack & HPI_HIF_ERROR_MASK)
1544                         return HPI6000_ERROR_GET_DATA_ACK;
1545
1546                 /* get the address and size */
1547                 do {
1548                         address = hpi_read_word(pdo, HPI_HIF_ADDR(address));
1549                         length = hpi_read_word(pdo, HPI_HIF_ADDR(length));
1550                 } while (hpi6000_check_PCI2040_error_flag(pao, H6READ));
1551
1552                 /* read the data */
1553                 {
1554                         u32 len = length;
1555                         u32 blk_len = 512;
1556                         while (len) {
1557                                 if (len < blk_len)
1558                                         blk_len = len;
1559                                 if (hpi6000_dsp_block_read32(pao, dsp_index,
1560                                                 address, p_data, blk_len))
1561                                         return HPI6000_ERROR_GET_DATA_READ;
1562                                 address += blk_len * 4;
1563                                 p_data += blk_len;
1564                                 len -= blk_len;
1565                         }
1566                 }
1567
1568                 if (hpi6000_send_host_command(pao, dsp_index, HPI_HIF_IDLE))
1569                         return HPI6000_ERROR_GET_DATA_IDLECMD;
1570                 hpi6000_send_dsp_interrupt(pdo);
1571
1572                 data_got += length * 4;
1573         }
1574         return 0;
1575 }
1576
1577 static void hpi6000_send_dsp_interrupt(struct dsp_obj *pdo)
1578 {
1579         iowrite32(0x00030003, pdo->prHPI_control);      /* DSPINT */
1580 }
1581
1582 static short hpi6000_send_host_command(struct hpi_adapter_obj *pao,
1583         u16 dsp_index, u32 host_cmd)
1584 {
1585         struct dsp_obj *pdo =
1586                 &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index];
1587         u32 timeout = TIMEOUT;
1588
1589         /* set command */
1590         do {
1591                 hpi_write_word(pdo, HPI_HIF_ADDR(host_cmd), host_cmd);
1592                 /* flush the FIFO */
1593                 hpi_set_address(pdo, HPI_HIF_ADDR(host_cmd));
1594         } while (hpi6000_check_PCI2040_error_flag(pao, H6WRITE) && --timeout);
1595
1596         /* reset the interrupt bit */
1597         iowrite32(0x00040004, pdo->prHPI_control);
1598
1599         if (timeout)
1600                 return 0;
1601         else
1602                 return 1;
1603 }
1604
1605 /* if the PCI2040 has recorded an HPI timeout, reset the error and return 1 */
1606 static short hpi6000_check_PCI2040_error_flag(struct hpi_adapter_obj *pao,
1607         u16 read_or_write)
1608 {
1609         u32 hPI_error;
1610
1611         struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv;
1612
1613         /* read the error bits from the PCI2040 */
1614         hPI_error = ioread32(phw->dw2040_HPICSR + HPI_ERROR_REPORT);
1615         if (hPI_error) {
1616                 /* reset the error flag */
1617                 iowrite32(0L, phw->dw2040_HPICSR + HPI_ERROR_REPORT);
1618                 phw->pCI2040HPI_error_count++;
1619                 if (read_or_write == 1)
1620                         gw_pci_read_asserts++;     /************* inc global */
1621                 else
1622                         gw_pci_write_asserts++;
1623                 return 1;
1624         } else
1625                 return 0;
1626 }
1627
1628 static short hpi6000_wait_dsp_ack(struct hpi_adapter_obj *pao, u16 dsp_index,
1629         u32 ack_value)
1630 {
1631         struct dsp_obj *pdo =
1632                 &(*(struct hpi_hw_obj *)pao->priv).ado[dsp_index];
1633         u32 ack = 0L;
1634         u32 timeout;
1635         u32 hPIC = 0L;
1636
1637         /* wait for host interrupt to signal ack is ready */
1638         timeout = TIMEOUT;
1639         while (--timeout) {
1640                 hPIC = ioread32(pdo->prHPI_control);
1641                 if (hPIC & 0x04)        /* 0x04 = HINT from DSP */
1642                         break;
1643         }
1644         if (timeout == 0)
1645                 return HPI_HIF_ERROR_MASK;
1646
1647         /* wait for dwAckValue */
1648         timeout = TIMEOUT;
1649         while (--timeout) {
1650                 /* read the ack mailbox */
1651                 ack = hpi_read_word(pdo, HPI_HIF_ADDR(dsp_ack));
1652                 if (ack == ack_value)
1653                         break;
1654                 if ((ack & HPI_HIF_ERROR_MASK)
1655                         && !hpi6000_check_PCI2040_error_flag(pao, H6READ))
1656                         break;
1657                 /*for (i=0;i<1000;i++) */
1658                 /*      dwPause=i+1; */
1659         }
1660         if (ack & HPI_HIF_ERROR_MASK)
1661                 /* indicates bad read from DSP -
1662                    typically 0xffffff is read for some reason */
1663                 ack = HPI_HIF_ERROR_MASK;
1664
1665         if (timeout == 0)
1666                 ack = HPI_HIF_ERROR_MASK;
1667         return (short)ack;
1668 }
1669
1670 static short hpi6000_update_control_cache(struct hpi_adapter_obj *pao,
1671         struct hpi_message *phm)
1672 {
1673         const u16 dsp_index = 0;
1674         struct hpi_hw_obj *phw = (struct hpi_hw_obj *)pao->priv;
1675         struct dsp_obj *pdo = &phw->ado[dsp_index];
1676         u32 timeout;
1677         u32 cache_dirty_flag;
1678         u16 err;
1679
1680         hpios_dsplock_lock(pao);
1681
1682         timeout = TIMEOUT;
1683         do {
1684                 cache_dirty_flag =
1685                         hpi_read_word((struct dsp_obj *)pdo,
1686                         HPI_HIF_ADDR(control_cache_is_dirty));
1687         } while (hpi6000_check_PCI2040_error_flag(pao, H6READ) && --timeout);
1688         if (!timeout) {
1689                 err = HPI6000_ERROR_CONTROL_CACHE_PARAMS;
1690                 goto unlock;
1691         }
1692
1693         if (cache_dirty_flag) {
1694                 /* read the cached controls */
1695                 u32 address;
1696                 u32 length;
1697
1698                 timeout = TIMEOUT;
1699                 if (pdo->control_cache_address_on_dsp == 0) {
1700                         do {
1701                                 address =
1702                                         hpi_read_word((struct dsp_obj *)pdo,
1703                                         HPI_HIF_ADDR(control_cache_address));
1704
1705                                 length = hpi_read_word((struct dsp_obj *)pdo,
1706                                         HPI_HIF_ADDR
1707                                         (control_cache_size_in_bytes));
1708                         } while (hpi6000_check_PCI2040_error_flag(pao, H6READ)
1709                                 && --timeout);
1710                         if (!timeout) {
1711                                 err = HPI6000_ERROR_CONTROL_CACHE_ADDRLEN;
1712                                 goto unlock;
1713                         }
1714                         pdo->control_cache_address_on_dsp = address;
1715                         pdo->control_cache_length_on_dsp = length;
1716                 } else {
1717                         address = pdo->control_cache_address_on_dsp;
1718                         length = pdo->control_cache_length_on_dsp;
1719                 }
1720
1721                 if (hpi6000_dsp_block_read32(pao, dsp_index, address,
1722                                 (u32 *)&phw->control_cache[0],
1723                                 length / sizeof(u32))) {
1724                         err = HPI6000_ERROR_CONTROL_CACHE_READ;
1725                         goto unlock;
1726                 }
1727                 do {
1728                         hpi_write_word((struct dsp_obj *)pdo,
1729                                 HPI_HIF_ADDR(control_cache_is_dirty), 0);
1730                         /* flush the FIFO */
1731                         hpi_set_address(pdo, HPI_HIF_ADDR(host_cmd));
1732                 } while (hpi6000_check_PCI2040_error_flag(pao, H6WRITE)
1733                         && --timeout);
1734                 if (!timeout) {
1735                         err = HPI6000_ERROR_CONTROL_CACHE_FLUSH;
1736                         goto unlock;
1737                 }
1738
1739         }
1740         err = 0;
1741
1742 unlock:
1743         hpios_dsplock_unlock(pao);
1744         return err;
1745 }
1746
1747 /** Get dsp index for multi DSP adapters only */
1748 static u16 get_dsp_index(struct hpi_adapter_obj *pao, struct hpi_message *phm)
1749 {
1750         u16 ret = 0;
1751         switch (phm->object) {
1752         case HPI_OBJ_ISTREAM:
1753                 if (phm->obj_index < 2)
1754                         ret = 1;
1755                 break;
1756         case HPI_OBJ_PROFILE:
1757                 ret = phm->obj_index;
1758                 break;
1759         default:
1760                 break;
1761         }
1762         return ret;
1763 }
1764
1765 /** Complete transaction with DSP
1766
1767 Send message, get response, send or get stream data if any.
1768 */
1769 static void hw_message(struct hpi_adapter_obj *pao, struct hpi_message *phm,
1770         struct hpi_response *phr)
1771 {
1772         u16 error = 0;
1773         u16 dsp_index = 0;
1774         u16 num_dsp = ((struct hpi_hw_obj *)pao->priv)->num_dsp;
1775
1776         if (num_dsp < 2)
1777                 dsp_index = 0;
1778         else {
1779                 dsp_index = get_dsp_index(pao, phm);
1780
1781                 /* is this  checked on the DSP anyway? */
1782                 if ((phm->function == HPI_ISTREAM_GROUP_ADD)
1783                         || (phm->function == HPI_OSTREAM_GROUP_ADD)) {
1784                         struct hpi_message hm;
1785                         u16 add_index;
1786                         hm.obj_index = phm->u.d.u.stream.stream_index;
1787                         hm.object = phm->u.d.u.stream.object_type;
1788                         add_index = get_dsp_index(pao, &hm);
1789                         if (add_index != dsp_index) {
1790                                 phr->error = HPI_ERROR_NO_INTERDSP_GROUPS;
1791                                 return;
1792                         }
1793                 }
1794         }
1795
1796         hpios_dsplock_lock(pao);
1797         error = hpi6000_message_response_sequence(pao, dsp_index, phm, phr);
1798
1799         /* maybe an error response */
1800         if (error) {
1801                 /* something failed in the HPI/DSP interface */
1802                 phr->error = error;
1803                 /* just the header of the response is valid */
1804                 phr->size = sizeof(struct hpi_response_header);
1805                 goto err;
1806         }
1807
1808         if (phr->error != 0)    /* something failed in the DSP */
1809                 goto err;
1810
1811         switch (phm->function) {
1812         case HPI_OSTREAM_WRITE:
1813         case HPI_ISTREAM_ANC_WRITE:
1814                 error = hpi6000_send_data(pao, dsp_index, phm, phr);
1815                 break;
1816         case HPI_ISTREAM_READ:
1817         case HPI_OSTREAM_ANC_READ:
1818                 error = hpi6000_get_data(pao, dsp_index, phm, phr);
1819                 break;
1820         case HPI_ADAPTER_GET_ASSERT:
1821                 phr->u.a.adapter_index = 0;     /* dsp 0 default */
1822                 if (num_dsp == 2) {
1823                         if (!phr->u.a.adapter_type) {
1824                                 /* no assert from dsp 0, check dsp 1 */
1825                                 error = hpi6000_message_response_sequence(pao,
1826                                         1, phm, phr);
1827                                 phr->u.a.adapter_index = 1;
1828                         }
1829                 }
1830         }
1831
1832         if (error)
1833                 phr->error = error;
1834
1835 err:
1836         hpios_dsplock_unlock(pao);
1837         return;
1838 }