Commit ce69bed5 authored by Takashi Sakamoto's avatar Takashi Sakamoto Committed by Takashi Iwai
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ALSA: firewire-motu: parse messages for mixer output parameters in register DSP model 



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

Signed-off-by: default avatarTakashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20211015080826.34847-6-o-takashi@sakamocchi.jp


Signed-off-by: default avatarTakashi Iwai <tiwai@suse.de>
parent dc36a975

include/uapi/sound/firewire.h

+6 −0
Original line number Diff line number Diff line
@@ -158,6 +158,8 @@ struct snd_firewire_motu_register_dsp_meter { 
 *				 Audio Express.

 * @mixer.source.paired_width: The width of paired source to mixer, only for 4 pre and

 *			       Audio Express.

 * @mixer.output.paired_volume: The volume of paired output from mixer.

 * @mixer.output.paired_flag: The flag of paired output from mixer.

 *

 * The structure expresses the set of parameters for DSP controlled by register access.

 */
@@ -170,6 +172,10 @@ struct snd_firewire_motu_register_dsp_parameter { 
			__u8 paired_balance[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];

			__u8 paired_width[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT];

		} source[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];

		struct {

			__u8 paired_volume[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];

			__u8 paired_flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT];

		} output;

	} mixer;

};

sound/firewire/motu/motu-register-dsp-message-parser.c

+20 −0
Original line number Diff line number Diff line
@@ -190,6 +190,26 @@ void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const str 
				}

				break;

			}

			case MIXER_OUTPUT_PAIRED_VOLUME:

			case MIXER_OUTPUT_PAIRED_FLAG:

			{

				struct snd_firewire_motu_register_dsp_parameter *param = &parser->param;

				u8 mixer_ch = parser->mixer_ch;



				if (mixer_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT) {

					switch (msg_type) {

					case MIXER_OUTPUT_PAIRED_VOLUME:

						param->mixer.output.paired_volume[mixer_ch] = val;

						break;

					case MIXER_OUTPUT_PAIRED_FLAG:

						param->mixer.output.paired_flag[mixer_ch] = val;

						break;

					default:

						break;

					}

				}

				break;

			}

			case METER:

			{

				u8 pos;