Quelle  hpimsgx.c   Sprache: C

// SPDX-License-Identifier: GPL-2.0-only
/******************************************************************************

    AudioScience HPI driver
    Copyright (C) 1997-2014  AudioScience Inc. <support@audioscience.com>


Extended Message Function With Response Caching

(C) Copyright AudioScience Inc. 2002
*****************************************************************************/
#define SOURCEFILE_NAME "hpimsgx.c"
#include "hpi_internal.h"
#include "hpi_version.h"
#include "hpimsginit.h"
#include "hpicmn.h"
#include "hpimsgx.h"
#include "hpidebug.h"

static const struct pci_device_id asihpi_pci_tbl[] = {
#include "hpipcida.h"
};

static struct hpios_spinlock msgx_lock;

static hpi_handler_func *hpi_entry_points[HPI_MAX_ADAPTERS];
static int logging_enabled = 1;

static hpi_handler_func *hpi_lookup_entry_point_function(const struct hpi_pci
 *pci_info)
{

 int i;

 for (i = 0; asihpi_pci_tbl[i].vendor != 0; i++) {
  if (asihpi_pci_tbl[i].vendor != PCI_ANY_ID
   && asihpi_pci_tbl[i].vendor !=
   pci_info->pci_dev->vendor)
   continue;
  if (asihpi_pci_tbl[i].device != PCI_ANY_ID
   && asihpi_pci_tbl[i].device !=
   pci_info->pci_dev->device)
   continue;
  if (asihpi_pci_tbl[i].subvendor != PCI_ANY_ID
   && asihpi_pci_tbl[i].subvendor !=
   pci_info->pci_dev->subsystem_vendor)
   continue;
  if (asihpi_pci_tbl[i].subdevice != PCI_ANY_ID
   && asihpi_pci_tbl[i].subdevice !=
   pci_info->pci_dev->subsystem_device)
   continue;

  /* HPI_DEBUG_LOG(DEBUG, " %x,%lx\n", i,
   asihpi_pci_tbl[i].driver_data); */
  return (hpi_handler_func *) asihpi_pci_tbl[i].driver_data;
 }

 return NULL;
}

static inline void hw_entry_point(struct hpi_message *phm,
 struct hpi_response *phr)
{
 if ((phm->adapter_index < HPI_MAX_ADAPTERS)
  && hpi_entry_points[phm->adapter_index])
  hpi_entry_points[phm->adapter_index] (phm, phr);
 else
  hpi_init_response(phr, phm->object, phm->function,
   HPI_ERROR_PROCESSING_MESSAGE);
}

static void adapter_open(struct hpi_message *phm, struct hpi_response *phr);
static void adapter_close(struct hpi_message *phm, struct hpi_response *phr);

static void mixer_open(struct hpi_message *phm, struct hpi_response *phr);
static void mixer_close(struct hpi_message *phm, struct hpi_response *phr);

static void outstream_open(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner);
static void outstream_close(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner);
static void instream_open(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner);
static void instream_close(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner);

static void HPIMSGX__reset(u16 adapter_index);

static u16 HPIMSGX__init(struct hpi_message *phm, struct hpi_response *phr);
static void HPIMSGX__cleanup(u16 adapter_index, void *h_owner);

#ifndef DISABLE_PRAGMA_PACK1
#pragma pack(push, 1)
#endif

struct hpi_adapter_response {
 struct hpi_response_header h;
 struct hpi_adapter_res a;
};

struct hpi_mixer_response {
 struct hpi_response_header h;
 struct hpi_mixer_res m;
};

struct hpi_stream_response {
 struct hpi_response_header h;
 struct hpi_stream_res d;
};

struct adapter_info {
 u16 type;
 u16 num_instreams;
 u16 num_outstreams;
};

struct asi_open_state {
 int open_flag;
 void *h_owner;
};

#ifndef DISABLE_PRAGMA_PACK1
#pragma pack(pop)
#endif

/* Globals */
static struct hpi_adapter_response rESP_HPI_ADAPTER_OPEN[HPI_MAX_ADAPTERS];

static struct hpi_stream_response
 rESP_HPI_OSTREAM_OPEN[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];

static struct hpi_stream_response
 rESP_HPI_ISTREAM_OPEN[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];

static struct hpi_mixer_response rESP_HPI_MIXER_OPEN[HPI_MAX_ADAPTERS];

static struct adapter_info aDAPTER_INFO[HPI_MAX_ADAPTERS];

/* use these to keep track of opens from user mode apps/DLLs */
static struct asi_open_state
 outstream_user_open[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];

static struct asi_open_state
 instream_user_open[HPI_MAX_ADAPTERS][HPI_MAX_STREAMS];

static void subsys_message(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{
 if (phm->adapter_index != HPI_ADAPTER_INDEX_INVALID)
  HPI_DEBUG_LOG(WARNING,
   "suspicious adapter index %d in subsys message 0x%x.\n",
   phm->adapter_index, phm->function);

 switch (phm->function) {
 case HPI_SUBSYS_GET_VERSION:
  hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
   HPI_SUBSYS_GET_VERSION, 0);
  phr->u.s.version = HPI_VER >> 8; /* return major.minor */
  phr->u.s.data = HPI_VER; /* return major.minor.release */
  break;
 case HPI_SUBSYS_OPEN:
  /*do not propagate the message down the chain */
  hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_OPEN, 0);
  break;
 case HPI_SUBSYS_CLOSE:
  /*do not propagate the message down the chain */
  hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, HPI_SUBSYS_CLOSE,
   0);
  HPIMSGX__cleanup(HPIMSGX_ALLADAPTERS, h_owner);
  break;
 case HPI_SUBSYS_DRIVER_LOAD:
  /* Initialize this module's internal state */
  hpios_msgxlock_init(&msgx_lock);
  memset(&hpi_entry_points, 0, sizeof(hpi_entry_points));
  /* Init subsys_findadapters response to no-adapters */
  HPIMSGX__reset(HPIMSGX_ALLADAPTERS);
  hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
   HPI_SUBSYS_DRIVER_LOAD, 0);
  /* individual HPIs dont implement driver load */
  HPI_COMMON(phm, phr);
  break;
 case HPI_SUBSYS_DRIVER_UNLOAD:
  HPI_COMMON(phm, phr);
  HPIMSGX__cleanup(HPIMSGX_ALLADAPTERS, h_owner);
  hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
   HPI_SUBSYS_DRIVER_UNLOAD, 0);
  return;

 case HPI_SUBSYS_GET_NUM_ADAPTERS:
 case HPI_SUBSYS_GET_ADAPTER:
  HPI_COMMON(phm, phr);
  break;

 case HPI_SUBSYS_CREATE_ADAPTER:
  HPIMSGX__init(phm, phr);
  break;

 default:
  /* Must explicitly handle every subsys message in this switch */
  hpi_init_response(phr, HPI_OBJ_SUBSYSTEM, phm->function,
   HPI_ERROR_INVALID_FUNC);
  break;
 }
}

static void adapter_message(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{
 switch (phm->function) {
 case HPI_ADAPTER_OPEN:
  adapter_open(phm, phr);
  break;
 case HPI_ADAPTER_CLOSE:
  adapter_close(phm, phr);
  break;
 case HPI_ADAPTER_DELETE:
  HPIMSGX__cleanup(phm->adapter_index, h_owner);
  {
   struct hpi_message hm;
   struct hpi_response hr;
   hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
    HPI_ADAPTER_CLOSE);
   hm.adapter_index = phm->adapter_index;
   hw_entry_point(&hm, &hr);
  }
  hw_entry_point(phm, phr);
  break;

 default:
  hw_entry_point(phm, phr);
  break;
 }
}

static void mixer_message(struct hpi_message *phm, struct hpi_response *phr)
{
 switch (phm->function) {
 case HPI_MIXER_OPEN:
  mixer_open(phm, phr);
  break;
 case HPI_MIXER_CLOSE:
  mixer_close(phm, phr);
  break;
 default:
  hw_entry_point(phm, phr);
  break;
 }
}

static void outstream_message(struct hpi_message *phm,
 struct hpi_response *phr, void *h_owner)
{
 if (phm->obj_index >= aDAPTER_INFO[phm->adapter_index].num_outstreams) {
  hpi_init_response(phr, HPI_OBJ_OSTREAM, phm->function,
   HPI_ERROR_INVALID_OBJ_INDEX);
  return;
 }

 switch (phm->function) {
 case HPI_OSTREAM_OPEN:
  outstream_open(phm, phr, h_owner);
  break;
 case HPI_OSTREAM_CLOSE:
  outstream_close(phm, phr, h_owner);
  break;
 default:
  hw_entry_point(phm, phr);
  break;
 }
}

static void instream_message(struct hpi_message *phm,
 struct hpi_response *phr, void *h_owner)
{
 if (phm->obj_index >= aDAPTER_INFO[phm->adapter_index].num_instreams) {
  hpi_init_response(phr, HPI_OBJ_ISTREAM, phm->function,
   HPI_ERROR_INVALID_OBJ_INDEX);
  return;
 }

 switch (phm->function) {
 case HPI_ISTREAM_OPEN:
  instream_open(phm, phr, h_owner);
  break;
 case HPI_ISTREAM_CLOSE:
  instream_close(phm, phr, h_owner);
  break;
 default:
  hw_entry_point(phm, phr);
  break;
 }
}

/* NOTE: HPI_Message() must be defined in the driver as a wrapper for
 * HPI_MessageEx so that functions in hpifunc.c compile.
 */
void hpi_send_recv_ex(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{

 if (logging_enabled)
  HPI_DEBUG_MESSAGE(DEBUG, phm);

 if (phm->type != HPI_TYPE_REQUEST) {
  hpi_init_response(phr, phm->object, phm->function,
   HPI_ERROR_INVALID_TYPE);
  return;
 }

 if (phm->adapter_index >= HPI_MAX_ADAPTERS
  && phm->adapter_index != HPIMSGX_ALLADAPTERS) {
  hpi_init_response(phr, phm->object, phm->function,
   HPI_ERROR_BAD_ADAPTER_NUMBER);
  return;
 }

 switch (phm->object) {
 case HPI_OBJ_SUBSYSTEM:
  subsys_message(phm, phr, h_owner);
  break;

 case HPI_OBJ_ADAPTER:
  adapter_message(phm, phr, h_owner);
  break;

 case HPI_OBJ_MIXER:
  mixer_message(phm, phr);
  break;

 case HPI_OBJ_OSTREAM:
  outstream_message(phm, phr, h_owner);
  break;

 case HPI_OBJ_ISTREAM:
  instream_message(phm, phr, h_owner);
  break;

 default:
  hw_entry_point(phm, phr);
  break;
 }

 if (logging_enabled)
  HPI_DEBUG_RESPONSE(phr);

 if (phr->error >= HPI_ERROR_DSP_COMMUNICATION) {
  hpi_debug_level_set(HPI_DEBUG_LEVEL_ERROR);
  logging_enabled = 0;
 }
}

static void adapter_open(struct hpi_message *phm, struct hpi_response *phr)
{
 HPI_DEBUG_LOG(VERBOSE, "adapter_open\n");
 memcpy(phr, &rESP_HPI_ADAPTER_OPEN[phm->adapter_index],
  sizeof(rESP_HPI_ADAPTER_OPEN[0]));
}

static void adapter_close(struct hpi_message *phm, struct hpi_response *phr)
{
 HPI_DEBUG_LOG(VERBOSE, "adapter_close\n");
 hpi_init_response(phr, HPI_OBJ_ADAPTER, HPI_ADAPTER_CLOSE, 0);
}

static void mixer_open(struct hpi_message *phm, struct hpi_response *phr)
{
 memcpy(phr, &rESP_HPI_MIXER_OPEN[phm->adapter_index],
  sizeof(rESP_HPI_MIXER_OPEN[0]));
}

static void mixer_close(struct hpi_message *phm, struct hpi_response *phr)
{
 hpi_init_response(phr, HPI_OBJ_MIXER, HPI_MIXER_CLOSE, 0);
}

static void instream_open(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{

 struct hpi_message hm;
 struct hpi_response hr;

 hpi_init_response(phr, HPI_OBJ_ISTREAM, HPI_ISTREAM_OPEN, 0);

 hpios_msgxlock_lock(&msgx_lock);

 if (instream_user_open[phm->adapter_index][phm->obj_index].open_flag)
  phr->error = HPI_ERROR_OBJ_ALREADY_OPEN;
 else if (rESP_HPI_ISTREAM_OPEN[phm->adapter_index]
  [phm->obj_index].h.error)
  memcpy(phr,
   &rESP_HPI_ISTREAM_OPEN[phm->adapter_index][phm->
    obj_index],
   sizeof(rESP_HPI_ISTREAM_OPEN[0][0]));
 else {
  instream_user_open[phm->adapter_index][phm->
   obj_index].open_flag = 1;
  hpios_msgxlock_unlock(&msgx_lock);

  /* issue a reset */
  hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
   HPI_ISTREAM_RESET);
  hm.adapter_index = phm->adapter_index;
  hm.obj_index = phm->obj_index;
  hw_entry_point(&hm, &hr);

  hpios_msgxlock_lock(&msgx_lock);
  if (hr.error) {
   instream_user_open[phm->adapter_index][phm->
    obj_index].open_flag = 0;
   phr->error = hr.error;
  } else {
   instream_user_open[phm->adapter_index][phm->
    obj_index].open_flag = 1;
   instream_user_open[phm->adapter_index][phm->
    obj_index].h_owner = h_owner;
   memcpy(phr,
    &rESP_HPI_ISTREAM_OPEN[phm->adapter_index]
    [phm->obj_index],
    sizeof(rESP_HPI_ISTREAM_OPEN[0][0]));
  }
 }
 hpios_msgxlock_unlock(&msgx_lock);
}

static void instream_close(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{

 struct hpi_message hm;
 struct hpi_response hr;

 hpi_init_response(phr, HPI_OBJ_ISTREAM, HPI_ISTREAM_CLOSE, 0);

 hpios_msgxlock_lock(&msgx_lock);
 if (h_owner ==
  instream_user_open[phm->adapter_index][phm->
   obj_index].h_owner) {
  /* HPI_DEBUG_LOG(INFO,"closing adapter %d "
   "instream %d owned by %p\n",
   phm->wAdapterIndex, phm->wObjIndex, hOwner); */
  instream_user_open[phm->adapter_index][phm->
   obj_index].h_owner = NULL;
  hpios_msgxlock_unlock(&msgx_lock);
  /* issue a reset */
  hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
   HPI_ISTREAM_RESET);
  hm.adapter_index = phm->adapter_index;
  hm.obj_index = phm->obj_index;
  hw_entry_point(&hm, &hr);
  hpios_msgxlock_lock(&msgx_lock);
  if (hr.error) {
   instream_user_open[phm->adapter_index][phm->
    obj_index].h_owner = h_owner;
   phr->error = hr.error;
  } else {
   instream_user_open[phm->adapter_index][phm->
    obj_index].open_flag = 0;
   instream_user_open[phm->adapter_index][phm->
    obj_index].h_owner = NULL;
  }
 } else {
  HPI_DEBUG_LOG(WARNING,
   "%p trying to close %d instream %d owned by %p\n",
   h_owner, phm->adapter_index, phm->obj_index,
   instream_user_open[phm->adapter_index][phm->
    obj_index].h_owner);
  phr->error = HPI_ERROR_OBJ_NOT_OPEN;
 }
 hpios_msgxlock_unlock(&msgx_lock);
}

static void outstream_open(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{

 struct hpi_message hm;
 struct hpi_response hr;

 hpi_init_response(phr, HPI_OBJ_OSTREAM, HPI_OSTREAM_OPEN, 0);

 hpios_msgxlock_lock(&msgx_lock);

 if (outstream_user_open[phm->adapter_index][phm->obj_index].open_flag)
  phr->error = HPI_ERROR_OBJ_ALREADY_OPEN;
 else if (rESP_HPI_OSTREAM_OPEN[phm->adapter_index]
  [phm->obj_index].h.error)
  memcpy(phr,
   &rESP_HPI_OSTREAM_OPEN[phm->adapter_index][phm->
    obj_index],
   sizeof(rESP_HPI_OSTREAM_OPEN[0][0]));
 else {
  outstream_user_open[phm->adapter_index][phm->
   obj_index].open_flag = 1;
  hpios_msgxlock_unlock(&msgx_lock);

  /* issue a reset */
  hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
   HPI_OSTREAM_RESET);
  hm.adapter_index = phm->adapter_index;
  hm.obj_index = phm->obj_index;
  hw_entry_point(&hm, &hr);

  hpios_msgxlock_lock(&msgx_lock);
  if (hr.error) {
   outstream_user_open[phm->adapter_index][phm->
    obj_index].open_flag = 0;
   phr->error = hr.error;
  } else {
   outstream_user_open[phm->adapter_index][phm->
    obj_index].open_flag = 1;
   outstream_user_open[phm->adapter_index][phm->
    obj_index].h_owner = h_owner;
   memcpy(phr,
    &rESP_HPI_OSTREAM_OPEN[phm->adapter_index]
    [phm->obj_index],
    sizeof(rESP_HPI_OSTREAM_OPEN[0][0]));
  }
 }
 hpios_msgxlock_unlock(&msgx_lock);
}

static void outstream_close(struct hpi_message *phm, struct hpi_response *phr,
 void *h_owner)
{

 struct hpi_message hm;
 struct hpi_response hr;

 hpi_init_response(phr, HPI_OBJ_OSTREAM, HPI_OSTREAM_CLOSE, 0);

 hpios_msgxlock_lock(&msgx_lock);

 if (h_owner ==
  outstream_user_open[phm->adapter_index][phm->
   obj_index].h_owner) {
  /* HPI_DEBUG_LOG(INFO,"closing adapter %d "
   "outstream %d owned by %p\n",
   phm->wAdapterIndex, phm->wObjIndex, hOwner); */
  outstream_user_open[phm->adapter_index][phm->
   obj_index].h_owner = NULL;
  hpios_msgxlock_unlock(&msgx_lock);
  /* issue a reset */
  hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
   HPI_OSTREAM_RESET);
  hm.adapter_index = phm->adapter_index;
  hm.obj_index = phm->obj_index;
  hw_entry_point(&hm, &hr);
  hpios_msgxlock_lock(&msgx_lock);
  if (hr.error) {
   outstream_user_open[phm->adapter_index][phm->
    obj_index].h_owner = h_owner;
   phr->error = hr.error;
  } else {
   outstream_user_open[phm->adapter_index][phm->
    obj_index].open_flag = 0;
   outstream_user_open[phm->adapter_index][phm->
    obj_index].h_owner = NULL;
  }
 } else {
  HPI_DEBUG_LOG(WARNING,
   "%p trying to close %d outstream %d owned by %p\n",
   h_owner, phm->adapter_index, phm->obj_index,
   outstream_user_open[phm->adapter_index][phm->
    obj_index].h_owner);
  phr->error = HPI_ERROR_OBJ_NOT_OPEN;
 }
 hpios_msgxlock_unlock(&msgx_lock);
}

static u16 adapter_prepare(u16 adapter)
{
 struct hpi_message hm;
 struct hpi_response hr;

 /* Open the adapter and streams */
 u16 i;

 /* call to HPI_ADAPTER_OPEN */
 hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
  HPI_ADAPTER_OPEN);
 hm.adapter_index = adapter;
 hw_entry_point(&hm, &hr);
 memcpy(&rESP_HPI_ADAPTER_OPEN[adapter], &hr,
  sizeof(rESP_HPI_ADAPTER_OPEN[0]));
 if (hr.error)
  return hr.error;

 /* call to HPI_ADAPTER_GET_INFO */
 hpi_init_message_response(&hm, &hr, HPI_OBJ_ADAPTER,
  HPI_ADAPTER_GET_INFO);
 hm.adapter_index = adapter;
 hw_entry_point(&hm, &hr);
 if (hr.error)
  return hr.error;

 aDAPTER_INFO[adapter].num_outstreams = hr.u.ax.info.num_outstreams;
 aDAPTER_INFO[adapter].num_instreams = hr.u.ax.info.num_instreams;
 aDAPTER_INFO[adapter].type = hr.u.ax.info.adapter_type;

 /* call to HPI_OSTREAM_OPEN */
 for (i = 0; i < aDAPTER_INFO[adapter].num_outstreams; i++) {
  hpi_init_message_response(&hm, &hr, HPI_OBJ_OSTREAM,
   HPI_OSTREAM_OPEN);
  hm.adapter_index = adapter;
  hm.obj_index = i;
  hw_entry_point(&hm, &hr);
  memcpy(&rESP_HPI_OSTREAM_OPEN[adapter][i], &hr,
   sizeof(rESP_HPI_OSTREAM_OPEN[0][0]));
  outstream_user_open[adapter][i].open_flag = 0;
  outstream_user_open[adapter][i].h_owner = NULL;
 }

 /* call to HPI_ISTREAM_OPEN */
 for (i = 0; i < aDAPTER_INFO[adapter].num_instreams; i++) {
  hpi_init_message_response(&hm, &hr, HPI_OBJ_ISTREAM,
   HPI_ISTREAM_OPEN);
  hm.adapter_index = adapter;
  hm.obj_index = i;
  hw_entry_point(&hm, &hr);
  memcpy(&rESP_HPI_ISTREAM_OPEN[adapter][i], &hr,
   sizeof(rESP_HPI_ISTREAM_OPEN[0][0]));
  instream_user_open[adapter][i].open_flag = 0;
  instream_user_open[adapter][i].h_owner = NULL;
 }

 /* call to HPI_MIXER_OPEN */
 hpi_init_message_response(&hm, &hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN);
 hm.adapter_index = adapter;
 hw_entry_point(&hm, &hr);
 memcpy(&rESP_HPI_MIXER_OPEN[adapter], &hr,
  sizeof(rESP_HPI_MIXER_OPEN[0]));

 return 0;
}

static void HPIMSGX__reset(u16 adapter_index)
{
 int i;
 u16 adapter;
 struct hpi_response hr;

 if (adapter_index == HPIMSGX_ALLADAPTERS) {
  for (adapter = 0; adapter < HPI_MAX_ADAPTERS; adapter++) {

   hpi_init_response(&hr, HPI_OBJ_ADAPTER,
    HPI_ADAPTER_OPEN, HPI_ERROR_BAD_ADAPTER);
   memcpy(&rESP_HPI_ADAPTER_OPEN[adapter], &hr,
    sizeof(rESP_HPI_ADAPTER_OPEN[adapter]));

   hpi_init_response(&hr, HPI_OBJ_MIXER, HPI_MIXER_OPEN,
    HPI_ERROR_INVALID_OBJ);
   memcpy(&rESP_HPI_MIXER_OPEN[adapter], &hr,
    sizeof(rESP_HPI_MIXER_OPEN[adapter]));

   for (i = 0; i < HPI_MAX_STREAMS; i++) {
    hpi_init_response(&hr, HPI_OBJ_OSTREAM,
     HPI_OSTREAM_OPEN,
     HPI_ERROR_INVALID_OBJ);
    memcpy(&rESP_HPI_OSTREAM_OPEN[adapter][i],
     &hr,
     sizeof(rESP_HPI_OSTREAM_OPEN[adapter]
      [i]));
    hpi_init_response(&hr, HPI_OBJ_ISTREAM,
     HPI_ISTREAM_OPEN,
     HPI_ERROR_INVALID_OBJ);
    memcpy(&rESP_HPI_ISTREAM_OPEN[adapter][i],
     &hr,
     sizeof(rESP_HPI_ISTREAM_OPEN[adapter]
      [i]));
   }
  }
 } else if (adapter_index < HPI_MAX_ADAPTERS) {
  rESP_HPI_ADAPTER_OPEN[adapter_index].h.error =
   HPI_ERROR_BAD_ADAPTER;
  rESP_HPI_MIXER_OPEN[adapter_index].h.error =
   HPI_ERROR_INVALID_OBJ;
  for (i = 0; i < HPI_MAX_STREAMS; i++) {
   rESP_HPI_OSTREAM_OPEN[adapter_index][i].h.error =
    HPI_ERROR_INVALID_OBJ;
   rESP_HPI_ISTREAM_OPEN[adapter_index][i].h.error =
    HPI_ERROR_INVALID_OBJ;
  }
 }
}

static u16 HPIMSGX__init(struct hpi_message *phm,
 /* HPI_SUBSYS_CREATE_ADAPTER structure with */
 /* resource list or NULL=find all */
 struct hpi_response *phr
 /* response from HPI_ADAPTER_GET_INFO */
 )
{
 hpi_handler_func *entry_point_func;
 struct hpi_response hr;

 /* Init response here so we can pass in previous adapter list */
 hpi_init_response(&hr, phm->object, phm->function,
  HPI_ERROR_INVALID_OBJ);

 entry_point_func =
  hpi_lookup_entry_point_function(phm->u.s.resource.r.pci);

 if (entry_point_func) {
  HPI_DEBUG_MESSAGE(DEBUG, phm);
  entry_point_func(phm, &hr);
 } else {
  phr->error = HPI_ERROR_PROCESSING_MESSAGE;
  return phr->error;
 }
 if (hr.error == 0 && hr.u.s.adapter_index < HPI_MAX_ADAPTERS) {
  /* the adapter was created successfully
   save the mapping for future use */
  hpi_entry_points[hr.u.s.adapter_index] = entry_point_func;
  /* prepare adapter (pre-open streams etc.) */
  HPI_DEBUG_LOG(DEBUG,
   "HPI_SUBSYS_CREATE_ADAPTER successful,"
   " preparing adapter\n");
  adapter_prepare(hr.u.s.adapter_index);
 }
 memcpy(phr, &hr, hr.size);
 return phr->error;
}

static void HPIMSGX__cleanup(u16 adapter_index, void *h_owner)
{
 int i, adapter, adapter_limit;

 if (!h_owner)
  return;

 if (adapter_index == HPIMSGX_ALLADAPTERS) {
  adapter = 0;
  adapter_limit = HPI_MAX_ADAPTERS;
 } else {
  adapter = adapter_index;
  adapter_limit = adapter + 1;
 }

 for (; adapter < adapter_limit; adapter++) {
  /*      printk(KERN_INFO "Cleanup adapter #%d\n",wAdapter); */
  for (i = 0; i < HPI_MAX_STREAMS; i++) {
   if (h_owner ==
    outstream_user_open[adapter][i].h_owner) {
    struct hpi_message hm;
    struct hpi_response hr;

    HPI_DEBUG_LOG(DEBUG,
     "Close adapter %d ostream %d\n",
     adapter, i);

    hpi_init_message_response(&hm, &hr,
     HPI_OBJ_OSTREAM, HPI_OSTREAM_RESET);
    hm.adapter_index = (u16)adapter;
    hm.obj_index = (u16)i;
    hw_entry_point(&hm, &hr);

    hm.function = HPI_OSTREAM_HOSTBUFFER_FREE;
    hw_entry_point(&hm, &hr);

    hm.function = HPI_OSTREAM_GROUP_RESET;
    hw_entry_point(&hm, &hr);

    outstream_user_open[adapter][i].open_flag = 0;
    outstream_user_open[adapter][i].h_owner =
     NULL;
   }
   if (h_owner == instream_user_open[adapter][i].h_owner) {
    struct hpi_message hm;
    struct hpi_response hr;

    HPI_DEBUG_LOG(DEBUG,
     "Close adapter %d istream %d\n",
     adapter, i);

    hpi_init_message_response(&hm, &hr,
     HPI_OBJ_ISTREAM, HPI_ISTREAM_RESET);
    hm.adapter_index = (u16)adapter;
    hm.obj_index = (u16)i;
    hw_entry_point(&hm, &hr);

    hm.function = HPI_ISTREAM_HOSTBUFFER_FREE;
    hw_entry_point(&hm, &hr);

    hm.function = HPI_ISTREAM_GROUP_RESET;
    hw_entry_point(&hm, &hr);

    instream_user_open[adapter][i].open_flag = 0;
    instream_user_open[adapter][i].h_owner = NULL;
   }
  }
 }
}