ALSA: emu10k1: Use managed buffer allocation

Clean up the driver with the new managed buffer allocation API.
The normal playback streams need a workaround for the aligned buffer,
and cannot apply the straight snd_pcm_lib_malloc() stuff, so they
remain untouched, while other streams are converted to the new managed
mode.

Most of hw_params and hw_free callbacks became superfluous and got
dropped.

Link: https://lore.kernel.org/r/20191209094943.14984-37-tiwai@suse.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 7 insertions, 41 deletions

diff --git a/sound/pci/emu10k1/p16v.c b/sound/pci/emu10k1/p16v.c
index ab8876855989..2263db4c954b 100644
--- a/sound/pci/emu10k1/p16v.c
+++ b/sound/pci/emu10k1/p16v.c
@@ -282,36 +282,6 @@ static int snd_p16v_pcm_open_capture(struct snd_pcm_substream *substream)
 	return snd_p16v_pcm_open_capture_channel(substream, 0);
 }
 
-/* hw_params callback */
-static int snd_p16v_pcm_hw_params_playback(struct snd_pcm_substream *substream,
-				      struct snd_pcm_hw_params *hw_params)
-{
-	return snd_pcm_lib_malloc_pages(substream,
-					params_buffer_bytes(hw_params));
-}
-
-/* hw_params callback */
-static int snd_p16v_pcm_hw_params_capture(struct snd_pcm_substream *substream,
-				      struct snd_pcm_hw_params *hw_params)
-{
-	return snd_pcm_lib_malloc_pages(substream,
-					params_buffer_bytes(hw_params));
-}
-
-
-/* hw_free callback */
-static int snd_p16v_pcm_hw_free_playback(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
-/* hw_free callback */
-static int snd_p16v_pcm_hw_free_capture(struct snd_pcm_substream *substream)
-{
-	return snd_pcm_lib_free_pages(substream);
-}
-
-
 /* prepare playback callback */
 static int snd_p16v_pcm_prepare_playback(struct snd_pcm_substream *substream)
 {
@@ -583,8 +553,6 @@ static const struct snd_pcm_ops snd_p16v_playback_front_ops = {
 	.open =        snd_p16v_pcm_open_playback_front,
 	.close =       snd_p16v_pcm_close_playback,
 	.ioctl =       snd_pcm_lib_ioctl,
-	.hw_params =   snd_p16v_pcm_hw_params_playback,
-	.hw_free =     snd_p16v_pcm_hw_free_playback,
 	.prepare =     snd_p16v_pcm_prepare_playback,
 	.trigger =     snd_p16v_pcm_trigger_playback,
 	.pointer =     snd_p16v_pcm_pointer_playback,
@@ -594,8 +562,6 @@ static const struct snd_pcm_ops snd_p16v_capture_ops = {
 	.open =        snd_p16v_pcm_open_capture,
 	.close =       snd_p16v_pcm_close_capture,
 	.ioctl =       snd_pcm_lib_ioctl,
-	.hw_params =   snd_p16v_pcm_hw_params_capture,
-	.hw_free =     snd_p16v_pcm_hw_free_capture,
 	.prepare =     snd_p16v_pcm_prepare_capture,
 	.trigger =     snd_p16v_pcm_trigger_capture,
 	.pointer =     snd_p16v_pcm_pointer_capture,
@@ -642,10 +608,10 @@ int snd_p16v_pcm(struct snd_emu10k1 *emu, int device)
 	for(substream = pcm->streams[SNDRV_PCM_STREAM_PLAYBACK].substream; 
 	    substream; 
 	    substream = substream->next) {
-		snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
-					      &emu->pci->dev,
-					      (65536 - 64) * 8,
-					      (65536 - 64) * 8);
+		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
+					   &emu->pci->dev,
+					   (65536 - 64) * 8,
+					   (65536 - 64) * 8);
 		/*
 		dev_dbg(emu->card->dev,
 			   "preallocate playback substream: err=%d\n", err);
@@ -655,9 +621,9 @@ int snd_p16v_pcm(struct snd_emu10k1 *emu, int device)
 	for (substream = pcm->streams[SNDRV_PCM_STREAM_CAPTURE].substream; 
 	      substream; 
 	      substream = substream->next) {
-		snd_pcm_lib_preallocate_pages(substream, SNDRV_DMA_TYPE_DEV,
-					      &emu->pci->dev,
-					      65536 - 64, 65536 - 64);
+		snd_pcm_set_managed_buffer(substream, SNDRV_DMA_TYPE_DEV,
+					   &emu->pci->dev,
+					   65536 - 64, 65536 - 64);
 		/*
 		dev_dbg(emu->card->dev,
 			   "preallocate capture substream: err=%d\n", err);