/*{{{ AudioIoctlSetSyncGroup*/
static int AudioIoctlSetSyncGroup (struct DeviceContext_s* Context, unsigned int Group)
{
int Result = 0;
if (Context != Context->SyncContext)
{
DVB_ERROR("Sync group already set - cannot reset\n");
return -EPERM;
}
if ((Group < 0) || (Group >= DVB_MAX_DEVICES_PER_ADAPTER))
{
DVB_ERROR("Invalid sync group - out of range.\n");
return -EPERM;
}
if (Context->SyncContext->Playback)
{
DVB_ERROR("Sync group already set - cannot reset\n");
return -EPERM;
}
Context->SyncContext = &Context->DvbContext->DeviceContext[Group];
DVB_DEBUG("Sync group set to device %d\n", Group);
return Result;
}
/*{{{ AudioIoctlSetEncoding*/
static int AudioIoctlSetEncoding (struct DeviceContext_s* Context, unsigned int Encoding)
{
DVB_DEBUG("Set encoding to %d\n", Encoding);
if ((Encoding < AUDIO_ENCODING_AUTO) || (Encoding > AUDIO_ENCODING_PRIVATE))
return -EINVAL;
if ((Context->AudioState.play_state != AUDIO_STOPPED) && (Context->AudioState.play_state != AUDIO_INCOMPLETE))
{
DVB_ERROR("Cannot change encoding after play has started\n");
return -EPERM;
}
Context->AudioEncoding = (audio_encoding_t)Encoding;
/* At this point we have received the missing piece of information which will allow the
* stream to be fully populated so we can reissue the play. */
if (Context->AudioState.play_state == AUDIO_INCOMPLETE)
AudioIoctlPlay (Context);
return 0;
}
int StartFeed (struct dvb_demux_feed* Feed)
{
struct dvb_demux* DvbDemux = Feed->demux;
struct dmxdev_filter* Filter = (struct dmxdev_filter*)Feed->feed.ts.priv;
struct dmx_pes_filter_params* Params = &Filter->params.pes;
struct DeviceContext_s* Context = (struct DeviceContext_s*)DvbDemux->priv;
struct DvbContext_s* DvbContext = Context->DvbContext;
int Result = 0;
int i;
unsigned int Video = false;
unsigned int Audio = false;
#ifdef __TDT__
struct DeviceContext_s *AvContext = NULL;
#endif
DVB_DEBUG ("(demux%d)\n", Context->Id);
/* either numRunningFeeds == 0 and reset_tsm == 1 or reset_tsm > 1 */
#ifdef __TDT__
// fix recoding freezer on tuner0 and demux1/2 or tuner1 and demux0/2 or tuner2 and demux0/1
int tsm_reset = 1;
for (i = 0; i < DVB_MAX_DEVICES_PER_ADAPTER; i++)
{
struct DeviceContext_s* DeviceContext = &DvbContext->DeviceContext[i];
if(DeviceContext->numRunningFeeds != 0)
tsm_reset = 0;
}
if (tsm_reset && reset_tsm)
{
printk(KERN_WARNING "reset_tsm: %d numRunningFeeds: %d => calling stm_tsm_init(1)\n", reset_tsm, Context->numRunningFeeds);
stm_tsm_init(1);
}
#else
if (Context->numRunningFeeds == 0 && reset_tsm)
{
printk(KERN_WARNING "reset_tsm: %d numRunningFeeds: %d => calling stm_tsm_init(1)\n", reset_tsm, Context->numRunningFeeds);
stm_tsm_init(1);
}
#endif
#if defined(ADB_BOX)//tutaj
if (glowica == SINGLE) {
if ((Context->pPtiSession->source==DMX_SOURCE_FRONT1)&&(StartFeed_!=NULL)) StartFeed_(Feed);
}
else if (glowica == TWIN) {
if ((Context->pPtiSession->source==DMX_SOURCE_FRONT2)&&(StartFeed_!=NULL)) StartFeed_(Feed);
}
#endif
#ifdef __TDT__
#ifdef no_subtitles
if ((Feed->type == DMX_TYPE_TS) && (Feed->pes_type > DMX_TS_PES_OTHER))
{
DVB_DEBUG ("pes_type %d > %d (OTHER)>\n", Feed->pes_type,
DMX_TS_PES_OTHER);
return -EINVAL;
}
#endif
DVB_DEBUG("t = %d, pt = %d, pid = %d\n", Feed->type, Feed->pes_type, Feed->pid);
#endif
switch (Feed->type)
{
case DMX_TYPE_TS:
if (Feed->pes_type > DMX_TS_PES_OTHER)
return -EINVAL;
for (i = 0; i < DVB_MAX_DEVICES_PER_ADAPTER; i++)
{
if (Feed->pes_type == AudioId[i])
{
Audio = true;
break;
}
if (Feed->pes_type == VideoId[i])
{
Video = true;
break;
}
}
#ifdef __TDT__
AvContext = &Context->DvbContext->DeviceContext[i];
//fix freeze if record starts in background
//AvContext->DemuxContext = Context;
//videotext & subtitles (other)
if ((Feed->pes_type == DMX_TS_PES_TELETEXT) ||
(Feed->pes_type == DMX_TS_PES_OTHER))
{
mutex_lock (&(DvbContext->Lock));
Context->numRunningFeeds++;
//printk("%s:%d numRunningFeeds: %d\n", __func__,__LINE__,Context->numRunningFeeds);
stpti_start_feed (Feed, Context);
mutex_unlock (&(DvbContext->Lock));
break;
}
#endif
if (!Audio && !Video)
{
#ifdef __TDT__
DVB_DEBUG ("pes_type = %d\n<\n", Feed->pes_type);
#endif
/*mutex_unlock (&(DvbContext->Lock)); This doesn't look right we haven't taken it yet*/
return 0;
}
mutex_lock (&(DvbContext->Lock));
#ifndef __TDT__
if ((Video && !Context->VideoOpenWrite) || (Audio && !Context->AudioOpenWrite))
{
mutex_unlock (&(DvbContext->Lock));
return -EBADF;
}
#endif
if ((Context->Playback == NULL) && (Context->SyncContext->Playback == NULL))
{
Result = DvbPlaybackCreate (&Context->Playback);
if (Result < 0)
{
mutex_unlock (&(DvbContext->Lock));
return Result;
}
Context->SyncContext->Playback = Context->Playback;
if (Context->PlaySpeed != DVB_SPEED_NORMAL_PLAY)
{
Result = VideoIoctlSetSpeed (Context, Context->PlaySpeed);
if (Result < 0)
#ifdef __TDT__
{
mutex_unlock (&(DvbContext->Lock));
return Result;
}
#else
return Result;
#endif
}
#ifdef __TDT__
if ((Context->VideoPlayInterval.start != DVB_TIME_NOT_BOUNDED) ||
(Context->VideoPlayInterval.end != DVB_TIME_NOT_BOUNDED))
{
Result = VideoIoctlSetPlayInterval (Context, &Context->AudioPlayInterval);
if (Result < 0)
{
mutex_unlock (&(DvbContext->Lock));
return Result;
}
}
#endif
}
else if (Context->Playback == NULL)
Context->Playback = Context->SyncContext->Playback;
else if (Context->SyncContext->Playback == NULL)
Context->SyncContext->Playback = Context->Playback;
else if (Context->Playback != Context->SyncContext->Playback)
DVB_ERROR ("Context playback not equal to sync context playback\n");
if (Context->DemuxStream == NULL)
{
Result = DvbPlaybackAddDemux (Context->Playback, Context->DemuxContext->Id, &Context->DemuxStream);
if (Result < 0)
{
mutex_unlock (&(DvbContext->Lock));
return Result;
}
}
#ifdef __TDT__
if (Video)
{
Context->numRunningFeeds++;
//printk("%s:%d numRunningFeeds: %d\n", __func__,__LINE__,Context->numRunningFeeds);
stpti_start_feed (Feed, Context);
if(Feed->ts_type & TS_DECODER)
VideoIoctlSetId (AvContext, Feed->pid);
}
else if (Audio)
{
Context->numRunningFeeds++;
//printk("%s:%d numRunningFeeds: %d\n", __func__,__LINE__,Context->numRunningFeeds);
stpti_start_feed (Feed, Context);
if(Feed->ts_type & TS_DECODER)
AudioIoctlSetId (AvContext, Feed->pid);
}
#else
if (Video)
{
struct DeviceContext_s* VideoContext = &Context->DvbContext->DeviceContext[i];
VideoContext->DemuxContext = Context;
VideoIoctlSetId (VideoContext, Feed->pid | (Params->flags & DMX_FILTER_BY_PRIORITY_MASK));
VideoIoctlPlay (VideoContext);
if ((Context->VideoPlayInterval.start != DVB_TIME_NOT_BOUNDED) ||
(Context->VideoPlayInterval.end != DVB_TIME_NOT_BOUNDED))
VideoIoctlSetPlayInterval (Context, &Context->AudioPlayInterval);
}
else
{
struct DeviceContext_s* AudioContext = &Context->DvbContext->DeviceContext[i];
AudioContext->DemuxContext = Context;
AudioIoctlSetId (AudioContext, Feed->pid | (Params->flags & DMX_FILTER_BY_PRIORITY_MASK));
AudioIoctlPlay (AudioContext);
if ((Context->AudioPlayInterval.start != DVB_TIME_NOT_BOUNDED) ||
(Context->AudioPlayInterval.end != DVB_TIME_NOT_BOUNDED))
AudioIoctlSetPlayInterval (Context, &Context->AudioPlayInterval);
}
#endif
mutex_unlock (&(DvbContext->Lock));
break;
case DMX_TYPE_SEC:
#ifdef __TDT__
//DVB_DEBUG ("feed type = SEC\n");
mutex_lock (&(DvbContext->Lock));
Context->numRunningFeeds++;
//printk("%s:%d numRunningFeeds: %d\n", __func__,__LINE__,Context->numRunningFeeds);
stpti_start_feed (Feed, Context);
mutex_unlock (&(DvbContext->Lock));
#endif
break;
default:
#ifdef __TDT
DVB_DEBUG ("< (type = %d unknown\n", Feed->type);
#endif
return -EINVAL;
}
return 0;
}
/*static*/ int __init StmLoadModule(void)
{
int Result;
int i;
short int AdapterNumbers[] = { -1 };
DvbContext = kzalloc(sizeof(struct DvbContext_s), GFP_KERNEL);
if (DvbContext == NULL)
{
DVB_ERROR("Unable to allocate device memory\n");
return -ENOMEM;
}
#ifdef __TDT__
memset(DvbContext, 0, sizeof * DvbContext);
#endif
#ifdef __TDT__
if (swts)
printk("swts ->routing streams from dvr0 to tsm to pti to player\n");
else
printk("no swts ->routing streams from dvr0 direct to the player\n");
#endif
#if DVB_API_VERSION < 5
Result = dvb_register_adapter(&DvbContext->DvbAdapter, MODULE_NAME, THIS_MODULE, NULL);
#else
Result = dvb_register_adapter(&DvbContext->DvbAdapter, MODULE_NAME, THIS_MODULE, NULL, AdapterNumbers);
#endif
if (Result < 0)
{
DVB_ERROR("Failed to register adapter (%d)\n", Result);
kfree(DvbContext);
DvbContext = NULL;
return -ENOMEM;
}
mutex_init(&(DvbContext->Lock));
mutex_lock(&(DvbContext->Lock));
/*{{{ Register devices*/
for (i = 0; i < DVB_MAX_DEVICES_PER_ADAPTER; i++)
{
struct DeviceContext_s* DeviceContext = &DvbContext->DeviceContext[i];
struct dvb_demux* DvbDemux = &DeviceContext->DvbDemux;
struct dmxdev* DmxDevice = &DeviceContext->DmxDevice;
struct dvb_device* DvrDevice;
#ifdef __TDT__
//sylvester: wenn der stream vom user kommt soll WriteToDecoder nix
//tun, da das ja hier schon passiert. keine ahnung wie man das ansonsten
//verhindern soll;-)
DeviceContext->dvr_write = 0;
#endif
DeviceContext->DvbContext = DvbContext;
#if defined (USE_KERNEL_DEMUX)
memset(DvbDemux, 0, sizeof(struct dvb_demux));
#ifdef __TDT__
DvbDemux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING | DMX_TS_DESCRAMBLING;
/* currently only dummy to avoid EINVAL error. Later we need it for second frontend ?! */
DvbDemux->dmx.set_source = SetSource;
#else
DvbDemux->dmx.capabilities = DMX_TS_FILTERING | DMX_SECTION_FILTERING | DMX_MEMORY_BASED_FILTERING;
#endif
DvbDemux->priv = DeviceContext;
DvbDemux->filternum = 32;
DvbDemux->feednum = 32;
DvbDemux->start_feed = StartFeed;
DvbDemux->stop_feed = StopFeed;
#ifdef __TDT__
DvbDemux->write_to_decoder = WriteToDecoder;
#else
DvbDemux->write_to_decoder = NULL;
#endif
Result = dvb_dmx_init(DvbDemux);
if (Result < 0)
{
DVB_ERROR("dvb_dmx_init failed (errno = %d)\n", Result);
return Result;
}
memset(DmxDevice, 0, sizeof(struct dmxdev));
DmxDevice->filternum = DvbDemux->filternum;
DmxDevice->demux = &DvbDemux->dmx;
DmxDevice->capabilities = 0;
Result = dvb_dmxdev_init(DmxDevice, &DvbContext->DvbAdapter);
if (Result < 0)
{
DVB_ERROR("dvb_dmxdev_init failed (errno = %d)\n", Result);
dvb_dmx_release(DvbDemux);
return Result;
}
DvrDevice = DvrInit(DmxDevice->dvr_dvbdev->fops);
#ifdef __TDT__
printk("%d: DeviceContext %p, DvbDemux %p, DmxDevice %p\n", i, DeviceContext, DvbDemux, DmxDevice);
#endif
/* Unregister the built-in dvr device and replace it with our own version */
dvb_unregister_device(DmxDevice->dvr_dvbdev);
dvb_register_device(&DvbContext->DvbAdapter,
&DmxDevice->dvr_dvbdev,
DvrDevice, DmxDevice, DVB_DEVICE_DVR);
DeviceContext->MemoryFrontend.source = DMX_MEMORY_FE;
Result = DvbDemux->dmx.add_frontend(&DvbDemux->dmx, &DeviceContext->MemoryFrontend);
if (Result < 0)
{
DVB_ERROR("add_frontend failed (errno = %d)\n", Result);
dvb_dmxdev_release(DmxDevice);
dvb_dmx_release(DvbDemux);
return Result;
}
#else
dvb_register_device(&DvbContext->DvbAdapter,
&DeviceContext->DemuxDevice,
DemuxInit(DeviceContext),
DeviceContext, DVB_DEVICE_DEMUX);
dvb_register_device(&DvbContext->DvbAdapter,
&DeviceContext->DvrDevice,
DvrInit(DeviceContext),
DeviceContext, DVB_DEVICE_DVR);
#endif
dvb_register_device(&DvbContext->DvbAdapter,
&DeviceContext->AudioDevice,
AudioInit(DeviceContext),
DeviceContext, DVB_DEVICE_AUDIO);
#ifdef __TDT__
/* register the CA device (e.g. CIMAX) */
if (i < 3)
#ifndef VIP2_V1
dvb_register_device(&DvbContext->DvbAdapter,
&DeviceContext->CaDevice,
CaInit(DeviceContext),
DeviceContext, DVB_DEVICE_CA);
#endif
#else
dvb_register_device(&DvbContext->DvbAdapter,
&DeviceContext->CaDevice,
CaInit(DeviceContext),
DeviceContext, DVB_DEVICE_CA);
#endif
dvb_register_device(&DvbContext->DvbAdapter,
&DeviceContext->VideoDevice,
VideoInit(DeviceContext),
DeviceContext, DVB_DEVICE_VIDEO);
DeviceContext->Id = i;
DeviceContext->numRunningFeeds = 0;
DeviceContext->DemuxContext = DeviceContext; /* wire directly to own demux by default */
DeviceContext->SyncContext = DeviceContext; /* we are our own sync group by default */
DeviceContext->Playback = NULL;
DeviceContext->StreamType = STREAM_TYPE_TRANSPORT;
DeviceContext->DvbContext = DvbContext;
DeviceContext->DemuxStream = NULL;
DeviceContext->VideoStream = NULL;
DeviceContext->AudioStream = NULL;
DeviceContext->PlaySpeed = DVB_SPEED_NORMAL_PLAY;
DeviceContext->dvr_in = kmalloc(65536, GFP_KERNEL); // 128Kbytes is quite a lot per device.
DeviceContext->dvr_out = kmalloc(65536, GFP_KERNEL); // However allocating on each write is expensive.
DeviceContext->EncryptionOn = 0;
#ifdef __TDT__
DeviceContext->VideoPlaySpeed = DVB_SPEED_NORMAL_PLAY;
DeviceContext->provideToDecoder = 0;
DeviceContext->feedPesType = 0;
mutex_init(&DeviceContext->injectMutex);
if (i < 4)
{
ptiInit(DeviceContext);
}
if (i < 1)
{
init_e2_proc(DeviceContext);
}
#endif
}
mutex_unlock(&(DvbContext->Lock));
DvbBackendInit();
#ifndef __TDT__
#if defined (CONFIG_CPU_SUBTYPE_STX7105) // || defined (CONFIG_CPU_SUBTYPE_STX7200)
cap_init();
#endif
#endif
linuxdvb_v4l2_init();
DVB_DEBUG("STM stream device loaded\n");
return 0;
}
/*{{{ AudioIoctl*/
static int AudioIoctl (struct inode* Inode,
struct file* File,
unsigned int IoctlCode,
void* Parameter)
{
struct dvb_device* DvbDevice = (struct dvb_device*)File->private_data;
struct DeviceContext_s* Context = (struct DeviceContext_s*)DvbDevice->priv;
struct DvbContext_s* DvbContext = Context->DvbContext;
int Result = 0;
/*DVB_DEBUG("AudioIoctl : Ioctl %08x\n", IoctlCode); */
if (((File->f_flags & O_ACCMODE) == O_RDONLY) && (IoctlCode != AUDIO_GET_STATUS))
return -EPERM;
if (!Context->AudioOpenWrite) /* Check to see that somebody has the device open for write */
return -EBADF;
mutex_lock (&(DvbContext->Lock));
switch (IoctlCode)
{
case AUDIO_STOP:
Result = AudioIoctlStop (Context);
break;
case AUDIO_PLAY:
Result = AudioIoctlPlay (Context);
break;
case AUDIO_PAUSE:
Result = AudioIoctlPause (Context);
break;
case AUDIO_CONTINUE:
Result = AudioIoctlContinue (Context);
break;
case AUDIO_SELECT_SOURCE:
Result = AudioIoctlSelectSource (Context, (audio_stream_source_t)Parameter);
break;
case AUDIO_SET_MUTE:
Result = AudioIoctlSetMute (Context, (unsigned int)Parameter);
break;
case AUDIO_SET_AV_SYNC:
Result = AudioIoctlSetAvSync (Context, (unsigned int)Parameter);
break;
case AUDIO_SET_BYPASS_MODE:
Result = AudioIoctlSetBypassMode (Context, (unsigned int)Parameter);
break;
case AUDIO_CHANNEL_SELECT:
Result = AudioIoctlChannelSelect (Context, (audio_channel_select_t)Parameter);
break;
case AUDIO_GET_STATUS:
Result = AudioIoctlGetStatus (Context, (struct audio_status*)Parameter);
break;
case AUDIO_GET_CAPABILITIES:
Result = AudioIoctlGetCapabilities (Context, (int*)Parameter);
break;
case AUDIO_GET_PTS:
Result = AudioIoctlGetPts (Context, (unsigned long long int*)Parameter);
break;
case AUDIO_CLEAR_BUFFER:
Result = AudioIoctlClearBuffer (Context);
break;
case AUDIO_SET_ID:
Result = AudioIoctlSetId (Context, (int)Parameter);
break;
case AUDIO_SET_MIXER:
Result = AudioIoctlSetMixer (Context, (audio_mixer_t*)Parameter);
break;
case AUDIO_SET_STREAMTYPE:
Result = AudioIoctlSetStreamType (Context, (unsigned int)Parameter);
break;
case AUDIO_SET_EXT_ID:
Result = AudioIoctlSetExtId (Context, (int)Parameter);
break;
case AUDIO_SET_ATTRIBUTES:
Result = AudioIoctlSetAttributes (Context, (audio_attributes_t) ((int)Parameter));
break;
case AUDIO_SET_KARAOKE:
Result = AudioIoctlSetKaraoke (Context, (audio_karaoke_t*)Parameter);
break;
case AUDIO_SET_ENCODING:
Result = AudioIoctlSetEncoding (Context, (unsigned int)Parameter);
break;
case AUDIO_FLUSH:
Result = AudioIoctlFlush (Context);
break;
case AUDIO_SET_SPDIF_SOURCE:
Result = AudioIoctlSetSpdifSource (Context, (unsigned int)Parameter);
break;
case AUDIO_SET_SPEED:
Result = AudioIoctlSetSpeed (Context, (int)Parameter);
break;
case AUDIO_DISCONTINUITY:
Result = AudioIoctlDiscontinuity (Context, (audio_discontinuity_t)Parameter);
break;
case AUDIO_SET_PLAY_INTERVAL:
Result = AudioIoctlSetPlayInterval (Context, (dvb_play_interval_t*)Parameter);
break;
case AUDIO_SET_SYNC_GROUP:
Result = AudioIoctlSetSyncGroup (Context, (unsigned int)Parameter);
break;
case AUDIO_GET_PLAY_TIME:
Result = AudioIoctlGetPlayTime (Context, (audio_play_time_t*)Parameter);
break;
case AUDIO_GET_PLAY_INFO:
Result = AudioIoctlGetPlayInfo (Context, (audio_play_info_t*)Parameter);
break;
default:
DVB_ERROR("Invalid ioctl %08x\n", IoctlCode);
Result = -ENOIOCTLCMD;
}
mutex_unlock (&(DvbContext->Lock));
return Result;
}
/*{{{ AudioIoctlSetKaraoke*/
static int AudioIoctlSetKaraoke (struct DeviceContext_s* Context, audio_karaoke_t* Karaoke)
{
DVB_ERROR("Not supported\n");
return -EPERM;
}
/*{{{ AudioIoctlSetAttributes*/
static int AudioIoctlSetAttributes (struct DeviceContext_s* Context, audio_attributes_t Attributes)
{
DVB_ERROR("Not supported\n");
return -EPERM;
}
/*{{{ AudioIoctlSetExtId*/
static int AudioIoctlSetExtId (struct DeviceContext_s* Context, int Id)
{
DVB_ERROR("Not supported\n");
return -EPERM;
}
/*{{{ AudioWrite*/
static ssize_t AudioWrite (struct file *File, const char __user* Buffer, size_t Count, loff_t* ppos)
{
struct dvb_device* DvbDevice = (struct dvb_device*)File->private_data;
struct DeviceContext_s* Context = (struct DeviceContext_s*)DvbDevice->priv;
int Result = 0;
#ifdef CONFIG_STM_TKDMA
char* InBuffer = &Context->dvr_in[16*2048];
char* OutBuffer = &Context->dvr_out[16*2048];
#endif
void* PhysicalBuffer = NULL;
const unsigned char* ClearData = Buffer;
if ((File->f_flags & O_ACCMODE) == O_RDONLY)
return -EPERM;
if (Context->AudioState.stream_source == AUDIO_SOURCE_DEMUX)
{
DVB_ERROR("Audio stream source not AUDIO_SOURCE_MEMORY - cannot use write\n");
return -EPERM; /* Not allowed to write to device if connected to demux */
}
mutex_lock (&(Context->AudioWriteLock));
if (Context->AudioStream == NULL)
{
DVB_ERROR ("No audio stream exists to be written to (previous AUDIO_PLAY failed?)\n");
mutex_unlock (&(Context->AudioWriteLock));
return -ENODEV;
}
if (!StreamBufferFree (Context->AudioStream) && ((File->f_flags & O_NONBLOCK) != 0))
{
mutex_unlock (&(Context->AudioWriteLock));
return -EWOULDBLOCK;
}
PhysicalBuffer = stm_v4l2_findbuffer ((unsigned long)Buffer, Count, 0);
#ifdef CONFIG_STM_TKDMA
if (Context->EncryptionOn)
{
if ((Count % 2048) != 0)
{
DVB_ERROR ("Count size incorrect for decryption (%d)\n", Count);
mutex_unlock (&(Context->AudioWriteLock));
return -EINVAL;
}
if (PhysicalBuffer != NULL)
{
tkdma_hddvd_decrypt_data (OutBuffer, PhysicalBuffer, Count/2048, TKDMA_VIDEO_CHANNEL, 0); // Got to check blocking
}
else
{
/*
If the incoming data is aligned to 2K/4K we would be able to avoid
this copy from user, we just decrypt max two packets at a time, certainly scatter gather
would be easier.
*/
copy_from_user (InBuffer, Buffer, Count);
tkdma_hddvd_decrypt_data (OutBuffer, InBuffer, Count/2048, TKDMA_VIDEO_CHANNEL, 0); // Got to check blocking
}
ClearData = OutBuffer;
}
else
#endif /* CONFIG_STM_TKDMA */
if (PhysicalBuffer)
ClearData = PhysicalBuffer;
#define PACK_HEADER_START_CODE ((ClearData[0]==0x00)&&(ClearData[1]==0x00)&&(ClearData[2]==0x01)&&(ClearData[3]==0xba))
#define PACK_HEADER_LENGTH 14
#define PES_LENGTH ((ClearData[4]<<8)+ClearData[5]+6) /* Extra 6 includes bytes up to length bytes */
if (PACK_HEADER_START_CODE) /* TODO Skip Pack header until handled by audio collator */
{
ClearData = &ClearData[PACK_HEADER_LENGTH];
Count = PES_LENGTH;
}
if (Context->AudioState.play_state == AUDIO_INCOMPLETE)
{
if (Context->AudioEncoding == AUDIO_ENCODING_AUTO)
{
StreamGetFirstBuffer (Context->AudioStream, Buffer, Count);
StreamIdentifyAudio (Context->AudioStream, &Context->AudioEncoding);
}
else
DVB_ERROR("Audio incomplete with encoding set (%d)\n", Context->AudioEncoding);
AudioIoctlPlay (Context);
if (Context->AudioState.play_state == AUDIO_INCOMPLETE)
Context->AudioState.play_state = AUDIO_STOPPED;
}
if (Context->AudioState.play_state != AUDIO_PLAYING)
{
DVB_ERROR("Audio not playing - cannot write (state %x)\n", Context->AudioState.play_state);
Result = -EPERM; /* Not allowed to write to device if paused */
}
else
Result = StreamInject (Context->AudioStream, ClearData, Count);
/*Result = StreamInjectFromUser (Context->AudioStream, Buffer, Count);*/
mutex_unlock (&(Context->AudioWriteLock));
return Result;
}