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linux/sound/pci/asihpi/hpimsgx.c
Eliot Blennerhassett 719f82d398 ALSA: Add support of AudioScience ASI boards 
Added the support of AudioScience ASI boards.
The driver has been tested for years on alsa-driver external tree,
now finally got merged to the kernel.

Signed-off-by: Eliot Blennerhassett <eblennerhassett@audioscience.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2010-04-22 07:21:53 +02:00

908 lines
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/******************************************************************************
AudioScience HPI driver
Copyright (C) 1997-2010 AudioScience Inc. <support@audioscience.com>
This program is free software; you can redistribute it and/or modify
it under the terms of version 2 of the GNU General Public License as
published by the Free Software Foundation;
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Extended Message Function With Response Cacheing
(C) Copyright AudioScience Inc. 2002
*****************************************************************************/
#define SOURCEFILE_NAME "hpimsgx.c"
#include "hpi_internal.h"
#include "hpimsginit.h"
#include "hpimsgx.h"
#include "hpidebug.h"
static 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 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->vendor_id)
continue;
if (asihpi_pci_tbl[i].device != PCI_ANY_ID
&& asihpi_pci_tbl[i].device != pci_info->device_id)
continue;
if (asihpi_pci_tbl[i].subvendor != PCI_ANY_ID
&& asihpi_pci_tbl[i].subvendor !=
pci_info->subsys_vendor_id)
continue;
if (asihpi_pci_tbl[i].subdevice != PCI_ANY_ID
&& asihpi_pci_tbl[i].subdevice !=
pci_info->subsys_device_id)
continue;
HPI_DEBUG_LOG(DEBUG, " %x,%lu\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)
{
hpi_handler_func *ep;
if (phm->adapter_index < HPI_MAX_ADAPTERS) {
ep = (hpi_handler_func *) hpi_entry_points[phm->
adapter_index];
if (ep) {
HPI_DEBUG_MESSAGE(DEBUG, phm);
ep(phm, phr);
HPI_DEBUG_RESPONSE(phr);
return;
}
}
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_subsys_response {
struct hpi_response_header h;
struct hpi_subsys_res s;
};
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 hpi_subsys_response gRESP_HPI_SUBSYS_FIND_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)
{
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));
hpios_locked_mem_init();
/* 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);
hpios_locked_mem_free_all();
hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_DRIVER_UNLOAD, 0);
return;
case HPI_SUBSYS_GET_INFO:
HPI_COMMON(phm, phr);
break;
case HPI_SUBSYS_FIND_ADAPTERS:
memcpy(phr, &gRESP_HPI_SUBSYS_FIND_ADAPTERS,
sizeof(gRESP_HPI_SUBSYS_FIND_ADAPTERS));
break;
case HPI_SUBSYS_GET_NUM_ADAPTERS:
memcpy(phr, &gRESP_HPI_SUBSYS_FIND_ADAPTERS,
sizeof(gRESP_HPI_SUBSYS_FIND_ADAPTERS));
phr->function = HPI_SUBSYS_GET_NUM_ADAPTERS;
break;
case HPI_SUBSYS_GET_ADAPTER:
{
int count = phm->adapter_index;
int index = 0;
hpi_init_response(phr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_GET_ADAPTER, 0);
/* This is complicated by the fact that we want to
* "skip" 0's in the adapter list.
* First, make sure we are pointing to a
* non-zero adapter type.
*/
while (gRESP_HPI_SUBSYS_FIND_ADAPTERS.
s.aw_adapter_list[index] == 0) {
index++;
if (index >= HPI_MAX_ADAPTERS)
break;
}
while (count) {
/* move on to the next adapter */
index++;
if (index >= HPI_MAX_ADAPTERS)
break;
while (gRESP_HPI_SUBSYS_FIND_ADAPTERS.
s.aw_adapter_list[index] == 0) {
index++;
if (index >= HPI_MAX_ADAPTERS)
break;
}
count--;
}
if (index < HPI_MAX_ADAPTERS) {
phr->u.s.adapter_index = (u16)index;
phr->u.s.aw_adapter_list[0] =
gRESP_HPI_SUBSYS_FIND_ADAPTERS.
s.aw_adapter_list[index];
} else {
phr->u.s.adapter_index = 0;
phr->u.s.aw_adapter_list[0] = 0;
phr->error = HPI_ERROR_BAD_ADAPTER_NUMBER;
}
break;
}
case HPI_SUBSYS_CREATE_ADAPTER:
HPIMSGX__init(phm, phr);
break;
case HPI_SUBSYS_DELETE_ADAPTER:
HPIMSGX__cleanup(phm->adapter_index, h_owner);
{
struct hpi_message hm;
struct hpi_response hr;
/* call to HPI_ADAPTER_CLOSE */
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);
gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.
aw_adapter_list[phm->adapter_index]
= 0;
hpi_entry_points[phm->adapter_index] = NULL;
break;
default:
hw_entry_point(phm, phr);
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;
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)
{
HPI_DEBUG_MESSAGE(DEBUG, phm);
if (phm->type != HPI_TYPE_MESSAGE) {
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;
}
HPI_DEBUG_RESPONSE(phr);
#if 1
if (phr->error >= HPI_ERROR_BACKEND_BASE) {
void *ep = NULL;
char *ep_name;
HPI_DEBUG_MESSAGE(ERROR, phm);
if (phm->adapter_index < HPI_MAX_ADAPTERS)
ep = hpi_entry_points[phm->adapter_index];
/* Don't need this? Have adapter index in debug info
Know at driver load time index->backend mapping */
if (ep == HPI_6000)
ep_name = "HPI_6000";
else if (ep == HPI_6205)
ep_name = "HPI_6205";
else
ep_name = "unknown";
HPI_DEBUG_LOG(ERROR, "HPI %s response - error# %d\n", ep_name,
phr->error);
if (hpi_debug_level >= HPI_DEBUG_LEVEL_VERBOSE)
hpi_debug_data((u16 *)phm,
sizeof(*phm) / sizeof(u16));
}
#endif
}
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_un_lock(&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_un_lock(&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_un_lock(&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_un_lock(&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_un_lock(&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_un_lock(&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_un_lock(&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_un_lock(&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.a.num_outstreams;
aDAPTER_INFO[adapter].num_instreams = hr.u.a.num_instreams;
aDAPTER_INFO[adapter].type = hr.u.a.adapter_type;
gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.aw_adapter_list[adapter] =
hr.u.a.adapter_type;
gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters++;
if (gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters > HPI_MAX_ADAPTERS)
gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters =
HPI_MAX_ADAPTERS;
/* 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 gRESP_HPI_SUBSYS_FIND_ADAPTERS.h.error;
}
static void HPIMSGX__reset(u16 adapter_index)
{
int i;
u16 adapter;
struct hpi_response hr;
if (adapter_index == HPIMSGX_ALLADAPTERS) {
/* reset all responses to contain errors */
hpi_init_response(&hr, HPI_OBJ_SUBSYSTEM,
HPI_SUBSYS_FIND_ADAPTERS, 0);
memcpy(&gRESP_HPI_SUBSYS_FIND_ADAPTERS, &hr,
sizeof(&gRESP_HPI_SUBSYS_FIND_ADAPTERS));
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;
}
if (gRESP_HPI_SUBSYS_FIND_ADAPTERS.
s.aw_adapter_list[adapter_index]) {
gRESP_HPI_SUBSYS_FIND_ADAPTERS.
s.aw_adapter_list[adapter_index] = 0;
gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters--;
}
}
}
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;
if (gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.num_adapters >= HPI_MAX_ADAPTERS)
return HPI_ERROR_BAD_ADAPTER_NUMBER;
/* Init response here so we can pass in previous adapter list */
hpi_init_response(&hr, phm->object, phm->function,
HPI_ERROR_INVALID_OBJ);
memcpy(hr.u.s.aw_adapter_list,
gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.aw_adapter_list,
sizeof(gRESP_HPI_SUBSYS_FIND_ADAPTERS.s.aw_adapter_list));
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) {
/* the adapter was created succesfully
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;
}
}
}
}
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