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ALSA: firewire-motu: parse messages for output parameters in register DSP model

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This commit parses message and cache current parameters of output
function, commonly available for all of register DSP model.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20211015080826.34847-7-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto 2021-10-15 17:08:21 +09:00 • committed by Takashi Iwai
parent ce69bed555
commit 6ca81d2b63
2 changed files with 20 additions and 1 deletions
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10
include/uapi/sound/firewire.h
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@ -160,6 +160,10 @@ struct snd_firewire_motu_register_dsp_meter {
* Audio Express.
* @mixer.output.paired_volume: The volume of paired output from mixer.
* @mixer.output.paired_flag: The flag of paired output from mixer.
* @output.main_paired_volume: The volume of paired main output.
* @output.hp_paired_volume: The volume of paired hp output.
* @output.hp_paired_assignment: The source assigned to paired hp output.
* @output.reserved: Padding for 32 bit alignment for future extension.
*
* The structure expresses the set of parameters for DSP controlled by register access.
*/
@ -177,6 +181,12 @@ struct snd_firewire_motu_register_dsp_parameter {
__u8 paired_flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];
} output;
} mixer;
struct {
__u8 main_paired_volume;
__u8 hp_paired_volume;
__u8 hp_paired_assignment;
__u8 reserved[5];
} output;
};
// In below MOTU models, software is allowed to control their DSP by command in frame of