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

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>

diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h
index f663a26..16ca7b4 100644 (file)
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -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

diff --git a/sound/firewire/motu/motu-register-dsp-message-parser.c b/sound/firewire/motu/motu-register-dsp-message-parser.c
index 867cb09..244f7ad 100644 (file)
--- a/sound/firewire/motu/motu-register-dsp-message-parser.c
+++ b/sound/firewire/motu/motu-register-dsp-message-parser.c
@@ -54,7 +54,7 @@ enum register_dsp_msg_type {
        MIXER_OUTPUT_PAIRED_FLAG = 0x06,
        MAIN_OUTPUT_PAIRED_VOLUME = 0x07,
        HP_OUTPUT_PAIRED_VOLUME = 0x08,
-       HP_OUTPUT_ASSIGN = 0x09,
+       HP_OUTPUT_PAIRED_ASSIGNMENT = 0x09,
        // Transferred by all models but the purpose is still unknown.
        UNKNOWN_0 = 0x0a,
        // Specific to 828mk2, 896hd, Traveler.
@@ -210,6 +210,15 @@ void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const str
                                }
                                break;
                        }
+                       case MAIN_OUTPUT_PAIRED_VOLUME:
+                               parser->param.output.main_paired_volume = val;
+                               break;
+                       case HP_OUTPUT_PAIRED_VOLUME:
+                               parser->param.output.hp_paired_volume = val;
+                               break;
+                       case HP_OUTPUT_PAIRED_ASSIGNMENT:
+                               parser->param.output.hp_paired_assignment = val;
+                               break;
                        case METER:
                        {
                                u8 pos;