1 files changed, 18 insertions, 26 deletions

diff --git a/sound/firewire/dice/dice-pcm.c b/sound/firewire/dice/dice-pcm.c
index 6074fe1f00f7..7cb9e9713ac3 100644
--- a/sound/firewire/dice/dice-pcm.c
+++ b/sound/firewire/dice/dice-pcm.c
@@ -51,18 +51,6 @@ static int limit_channels_and_rates(struct snd_dice *dice,
 	return 0;
 }
 
-static void limit_period_and_buffer(struct snd_pcm_hardware *hw)
-{
-	hw->periods_min = 2;			/* SNDRV_PCM_INFO_BATCH */
-	hw->periods_max = UINT_MAX;
-
-	hw->period_bytes_min = 4 * hw->channels_max;    /* byte for a frame */
-
-	/* Just to prevent from allocating much pages. */
-	hw->period_bytes_max = hw->period_bytes_min * 2048;
-	hw->buffer_bytes_max = hw->period_bytes_max * hw->periods_min;
-}
-
 static int init_hw_info(struct snd_dice *dice,
 			struct snd_pcm_substream *substream)
 {
@@ -74,13 +62,6 @@ static int init_hw_info(struct snd_dice *dice,
 	unsigned int count, size;
 	int err;
 
-	hw->info = SNDRV_PCM_INFO_MMAP |
-		   SNDRV_PCM_INFO_MMAP_VALID |
-		   SNDRV_PCM_INFO_BATCH |
-		   SNDRV_PCM_INFO_INTERLEAVED |
-		   SNDRV_PCM_INFO_JOINT_DUPLEX |
-		   SNDRV_PCM_INFO_BLOCK_TRANSFER;
-
 	if (substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
 		hw->formats = AM824_IN_PCM_FORMAT_BITS;
 		dir = AMDTP_IN_STREAM;
@@ -107,7 +88,6 @@ static int init_hw_info(struct snd_dice *dice,
 				       substream->pcm->device, size);
 	if (err < 0)
 		return err;
-	limit_period_and_buffer(hw);
 
 	return amdtp_am824_add_pcm_hw_constraints(stream, runtime);
 }
@@ -146,7 +126,6 @@ static int capture_hw_params(struct snd_pcm_substream *substream,
 			     struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_dice *dice = substream->private_data;
-	struct amdtp_stream *stream = &dice->tx_stream[substream->pcm->device];
 	int err;
 
 	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
@@ -160,15 +139,12 @@ static int capture_hw_params(struct snd_pcm_substream *substream,
 		mutex_unlock(&dice->mutex);
 	}
 
-	amdtp_am824_set_pcm_format(stream, params_format(hw_params));
-
 	return 0;
 }
 static int playback_hw_params(struct snd_pcm_substream *substream,
 			      struct snd_pcm_hw_params *hw_params)
 {
 	struct snd_dice *dice = substream->private_data;
-	struct amdtp_stream *stream = &dice->rx_stream[substream->pcm->device];
 	int err;
 
 	err = snd_pcm_lib_alloc_vmalloc_buffer(substream,
@@ -182,8 +158,6 @@ static int playback_hw_params(struct snd_pcm_substream *substream,
 		mutex_unlock(&dice->mutex);
 	}
 
-	amdtp_am824_set_pcm_format(stream, params_format(hw_params));
-
 	return 0;
 }
 
@@ -300,6 +274,22 @@ static snd_pcm_uframes_t playback_pointer(struct snd_pcm_substream *substream)
 	return amdtp_stream_pcm_pointer(stream);
 }
 
+static int capture_ack(struct snd_pcm_substream *substream)
+{
+	struct snd_dice *dice = substream->private_data;
+	struct amdtp_stream *stream = &dice->tx_stream[substream->pcm->device];
+
+	return amdtp_stream_pcm_ack(stream);
+}
+
+static int playback_ack(struct snd_pcm_substream *substream)
+{
+	struct snd_dice *dice = substream->private_data;
+	struct amdtp_stream *stream = &dice->rx_stream[substream->pcm->device];
+
+	return amdtp_stream_pcm_ack(stream);
+}
+
 int snd_dice_create_pcm(struct snd_dice *dice)
 {
 	static const struct snd_pcm_ops capture_ops = {
@@ -311,6 +301,7 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		.prepare   = capture_prepare,
 		.trigger   = capture_trigger,
 		.pointer   = capture_pointer,
+		.ack       = capture_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
 		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};
@@ -323,6 +314,7 @@ int snd_dice_create_pcm(struct snd_dice *dice)
 		.prepare   = playback_prepare,
 		.trigger   = playback_trigger,
 		.pointer   = playback_pointer,
+		.ack       = playback_ack,
 		.page      = snd_pcm_lib_get_vmalloc_page,
 		.mmap      = snd_pcm_lib_mmap_vmalloc,
 	};