trident_main.c

linux-2.6.15.6

/*---------------------------------------------------------------------------
   snd_trident_spdif_pointer
  
   Description: This routine return the SPDIF playback position
                
   Parameters:	substream  - PCM substream class

   Returns:     position of buffer
  
  ---------------------------------------------------------------------------*/

static snd_pcm_uframes_t snd_trident_spdif_pointer(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
	snd_trident_voice_t *voice = (snd_trident_voice_t *) runtime->private_data;
	unsigned int result;

	if (!voice->running)
		return 0;

	result = inl(TRID_REG(trident, NX_SPCTRL_SPCSO)) & 0x00ffffff;

	return result;
}

/*
 *  Playback support device description
 */

static snd_pcm_hardware_t snd_trident_playback =
{
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
				 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
	.rate_min =		4000,
	.rate_max =		48000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	(256*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(256*1024),
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};

/*
 *  Capture support device description
 */

static snd_pcm_hardware_t snd_trident_capture =
{
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
	.formats =		(SNDRV_PCM_FMTBIT_U8 | SNDRV_PCM_FMTBIT_S16_LE |
				 SNDRV_PCM_FMTBIT_S8 | SNDRV_PCM_FMTBIT_U16_LE),
	.rates =		SNDRV_PCM_RATE_CONTINUOUS | SNDRV_PCM_RATE_8000_48000,
	.rate_min =		4000,
	.rate_max =		48000,
	.channels_min =		1,
	.channels_max =		2,
	.buffer_bytes_max =	(128*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(128*1024),
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};

/*
 *  Foldback capture support device description
 */

static snd_pcm_hardware_t snd_trident_foldback =
{
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
	.rates =		SNDRV_PCM_RATE_48000,
	.rate_min =		48000,
	.rate_max =		48000,
	.channels_min =		2,
	.channels_max =		2,
	.buffer_bytes_max =	(128*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(128*1024),
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};

/*
 *  SPDIF playback support device description
 */

static snd_pcm_hardware_t snd_trident_spdif =
{
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
	.rates =		(SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |
				 SNDRV_PCM_RATE_48000),
	.rate_min =		32000,
	.rate_max =		48000,
	.channels_min =		2,
	.channels_max =		2,
	.buffer_bytes_max =	(128*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(128*1024),
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};

static snd_pcm_hardware_t snd_trident_spdif_7018 =
{
	.info =			(SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_INTERLEAVED |
				 SNDRV_PCM_INFO_BLOCK_TRANSFER |
				 SNDRV_PCM_INFO_MMAP_VALID | SNDRV_PCM_INFO_SYNC_START |
				 SNDRV_PCM_INFO_PAUSE /* | SNDRV_PCM_INFO_RESUME */),
	.formats =		SNDRV_PCM_FMTBIT_S16_LE,
	.rates =		SNDRV_PCM_RATE_48000,
	.rate_min =		48000,
	.rate_max =		48000,
	.channels_min =		2,
	.channels_max =		2,
	.buffer_bytes_max =	(128*1024),
	.period_bytes_min =	64,
	.period_bytes_max =	(128*1024),
	.periods_min =		1,
	.periods_max =		1024,
	.fifo_size =		0,
};

static void snd_trident_pcm_free_substream(snd_pcm_runtime_t *runtime)
{
	snd_trident_voice_t *voice = (snd_trident_voice_t *) runtime->private_data;
	trident_t *trident;

	if (voice) {
		trident = voice->trident;
		snd_trident_free_voice(trident, voice);
	}
}

static int snd_trident_playback_open(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
	snd_trident_voice_t *voice;

	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
	if (voice == NULL)
		return -EAGAIN;
	snd_trident_pcm_mixer_build(trident, voice, substream);
	voice->substream = substream;
	runtime->private_data = voice;
	runtime->private_free = snd_trident_pcm_free_substream;
	runtime->hw = snd_trident_playback;
	snd_pcm_set_sync(substream);
	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
	return 0;
}

/*---------------------------------------------------------------------------
   snd_trident_playback_close
  
   Description: This routine will close the 4DWave playback device. For now 
                we will simply free the dma transfer buffer.
                
   Parameters:	substream  - PCM substream class

  ---------------------------------------------------------------------------*/
static int snd_trident_playback_close(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_pcm_runtime_t *runtime = substream->runtime;
	snd_trident_voice_t *voice = (snd_trident_voice_t *) runtime->private_data;

	snd_trident_pcm_mixer_free(trident, voice, substream);
	return 0;
}

/*---------------------------------------------------------------------------
   snd_trident_spdif_open
  
   Description: This routine will open the 4DWave SPDIF device.

   Parameters:	substream  - PCM substream class

   Returns:     status  - success or failure flag
  
  ---------------------------------------------------------------------------*/

static int snd_trident_spdif_open(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_trident_voice_t *voice;
	snd_pcm_runtime_t *runtime = substream->runtime;
	
	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
	if (voice == NULL)
		return -EAGAIN;
	voice->spdif = 1;
	voice->substream = substream;
	spin_lock_irq(&trident->reg_lock);
	trident->spdif_pcm_bits = trident->spdif_bits;
	spin_unlock_irq(&trident->reg_lock);

	runtime->private_data = voice;
	runtime->private_free = snd_trident_pcm_free_substream;
	if (trident->device == TRIDENT_DEVICE_ID_SI7018) {
		runtime->hw = snd_trident_spdif;
	} else {
		runtime->hw = snd_trident_spdif_7018;
	}

	trident->spdif_pcm_ctl->vd[0].access &= ~SNDRV_CTL_ELEM_ACCESS_INACTIVE;
	snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE |
		       SNDRV_CTL_EVENT_MASK_INFO, &trident->spdif_pcm_ctl->id);

	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
	return 0;
}


/*---------------------------------------------------------------------------
   snd_trident_spdif_close
  
   Description: This routine will close the 4DWave SPDIF device.
                
   Parameters:	substream  - PCM substream class

  ---------------------------------------------------------------------------*/

static int snd_trident_spdif_close(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	unsigned int temp;

	spin_lock_irq(&trident->reg_lock);
	// restore default SPDIF setting
	if (trident->device != TRIDENT_DEVICE_ID_SI7018) {
		outb(trident->spdif_ctrl, TRID_REG(trident, NX_SPCTRL_SPCSO + 3));
		outl(trident->spdif_bits, TRID_REG(trident, NX_SPCSTATUS));
	} else {
		outl(trident->spdif_bits, TRID_REG(trident, SI_SPDIF_CS));
		temp = inl(TRID_REG(trident, SI_SERIAL_INTF_CTRL));
		if (trident->spdif_ctrl) {
			temp |= SPDIF_EN;
		} else {
			temp &= ~SPDIF_EN;
		}
		outl(temp, TRID_REG(trident, SI_SERIAL_INTF_CTRL));
	}
	spin_unlock_irq(&trident->reg_lock);
	trident->spdif_pcm_ctl->vd[0].access |= SNDRV_CTL_ELEM_ACCESS_INACTIVE;
	snd_ctl_notify(trident->card, SNDRV_CTL_EVENT_MASK_VALUE |
		       SNDRV_CTL_EVENT_MASK_INFO, &trident->spdif_pcm_ctl->id);
	return 0;
}

/*---------------------------------------------------------------------------
   snd_trident_capture_open
  
   Description: This routine will open the 4DWave capture device.

   Parameters:	substream  - PCM substream class

   Returns:     status  - success or failure flag

  ---------------------------------------------------------------------------*/

static int snd_trident_capture_open(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_trident_voice_t *voice;
	snd_pcm_runtime_t *runtime = substream->runtime;

	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
	if (voice == NULL)
		return -EAGAIN;
	voice->capture = 1;
	voice->substream = substream;
	runtime->private_data = voice;
	runtime->private_free = snd_trident_pcm_free_substream;
	runtime->hw = snd_trident_capture;
	snd_pcm_set_sync(substream);
	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
	return 0;
}

/*---------------------------------------------------------------------------
   snd_trident_capture_close
  
   Description: This routine will close the 4DWave capture device. For now 
                we will simply free the dma transfer buffer.
                
   Parameters:	substream  - PCM substream class

  ---------------------------------------------------------------------------*/
static int snd_trident_capture_close(snd_pcm_substream_t * substream)
{
	return 0;
}

/*---------------------------------------------------------------------------
   snd_trident_foldback_open
  
   Description: This routine will open the 4DWave foldback capture device.

   Parameters:	substream  - PCM substream class

   Returns:     status  - success or failure flag

  ---------------------------------------------------------------------------*/

static int snd_trident_foldback_open(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_trident_voice_t *voice;
	snd_pcm_runtime_t *runtime = substream->runtime;

	voice = snd_trident_alloc_voice(trident, SNDRV_TRIDENT_VOICE_TYPE_PCM, 0, 0);
	if (voice == NULL)
		return -EAGAIN;
	voice->foldback_chan = substream->number;
	voice->substream = substream;
	runtime->private_data = voice;
	runtime->private_free = snd_trident_pcm_free_substream;
	runtime->hw = snd_trident_foldback;
	snd_pcm_hw_constraint_minmax(runtime, SNDRV_PCM_HW_PARAM_BUFFER_SIZE, 0, 64*1024);
	return 0;
}

/*---------------------------------------------------------------------------
   snd_trident_foldback_close
  
   Description: This routine will close the 4DWave foldback capture device. 
		For now we will simply free the dma transfer buffer.
                
   Parameters:	substream  - PCM substream class

  ---------------------------------------------------------------------------*/
static int snd_trident_foldback_close(snd_pcm_substream_t * substream)
{
	trident_t *trident = snd_pcm_substream_chip(substream);
	snd_trident_voice_t *voice;
	snd_pcm_runtime_t *runtime = substream->runtime;
	voice = (snd_trident_voice_t *) runtime->private_data;
	
	/* stop capture channel */
	spin_lock_irq(&trident->reg_lock);
	outb(0x00, TRID_REG(trident, T4D_RCI + voice->foldback_chan));
	spin_unlock_irq(&trident->reg_lock);
	return 0;
}

/*---------------------------------------------------------------------------
   PCM operations
  ---------------------------------------------------------------------------*/

static snd_pcm_ops_t snd_trident_playback_ops = {
	.open =		snd_trident_playback_open,
	.close =	snd_trident_playback_close,
	.ioctl =	snd_trident_ioctl,
	.hw_params =	snd_trident_hw_params,
	.hw_free =	snd_trident_hw_free,
	.prepare =	snd_trident_playback_prepare,
	.trigger =	snd_trident_trigger,
	.pointer =	snd_trident_playback_pointer,
};

static snd_pcm_ops_t snd_trident_nx_playback_ops = {
	.open =		snd_trident_playback_open,
	.close =	snd_trident_playback_close,
	.ioctl =	snd_trident_ioctl,
	.hw_params =	snd_trident_hw_params,
	.hw_free =	snd_trident_hw_free,
	.prepare =	snd_trident_playback_prepare,
	.trigger =	snd_trident_trigger,
	.pointer =	snd_trident_playback_pointer,
	.page =		snd_pcm_sgbuf_ops_page,
};

static snd_pcm_ops_t snd_trident_capture_ops = {
	.open =		snd_trident_capture_open,
	.close =	snd_trident_capture_close,
	.ioctl =	snd_trident_ioctl,
	.hw_params =	snd_trident_capture_hw_params,
	.hw_free =	snd_trident_hw_free,
	.prepare =	snd_trident_capture_prepare,
	.trigger =	snd_trident_trigger,
	.pointer =	snd_trident_capture_pointer,
};

static snd_pcm_ops_t snd_trident_si7018_capture_ops = {
	.open =		snd_trident_capture_open,
	.close =	snd_trident_capture_close