Commit 4eae4892 authored by Stefan Binding's avatar Stefan Binding Committed by Takashi Iwai
Browse files

ALSA: hda: hda_component: Add pre and post playback hooks to hda_component 



These hooks can be used to add callbacks that would be run before and after
the main playback hooks. These hooks would be called for all amps, before
moving on to the next hook, i.e. pre_playback_hook would be called for
all amps, before the playback_hook is called for all amps, then finally
the post_playback_hook is called for all amps.

Signed-off-by: default avatarStefan Binding <sbinding@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230721151816.2080453-8-sbinding@opensource.cirrus.com


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent a5adbfb6

sound/pci/hda/hda_component.h

+2 −0
Original line number Diff line number Diff line
@@ -15,5 +15,7 @@ struct hda_component { 
	struct device *dev;

	char name[HDA_MAX_NAME_SIZE];

	struct hda_codec *codec;

	void (*pre_playback_hook)(struct device *dev, int action);

	void (*playback_hook)(struct device *dev, int action);

	void (*post_playback_hook)(struct device *dev, int action);

};

sound/pci/hda/patch_realtek.c

+9 −1
Original line number Diff line number Diff line
@@ -6700,9 +6700,17 @@ static void comp_generic_playback_hook(struct hda_pcm_stream *hinfo, struct hda_ 
	int i;



	for (i = 0; i < HDA_MAX_COMPONENTS; i++) {

		if (spec->comps[i].dev)

		if (spec->comps[i].dev && spec->comps[i].pre_playback_hook)

			spec->comps[i].pre_playback_hook(spec->comps[i].dev, action);

	}

	for (i = 0; i < HDA_MAX_COMPONENTS; i++) {

		if (spec->comps[i].dev && spec->comps[i].playback_hook)

			spec->comps[i].playback_hook(spec->comps[i].dev, action);

	}

	for (i = 0; i < HDA_MAX_COMPONENTS; i++) {

		if (spec->comps[i].dev && spec->comps[i].post_playback_hook)

			spec->comps[i].post_playback_hook(spec->comps[i].dev, action);

	}

}



struct cs35l41_dev_name {