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

This commit parses message and cache current parameters of line input
function, available for MOTU 828 mk2 and Traveler.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20211015080826.34847-8-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 16ca7b4..049934e 100644 (file)
--- a/include/uapi/sound/firewire.h
+++ b/include/uapi/sound/firewire.h
@@ -164,6 +164,10 @@ struct snd_firewire_motu_register_dsp_meter {
  * @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.
+ * @line_input.boost_flag: The flags of boost for line inputs, only for 828mk2 and Traveler.
+ * @line_input.nominal_level_flag: The flags of nominal level for line inputs, only for 828mk2 and
+ *                                Traveler.
+ * @line_input.reserved: Padding for 32 bit alignment for future extension.
  *
  * The structure expresses the set of parameters for DSP controlled by register access.
  */
@@ -187,6 +191,11 @@ struct snd_firewire_motu_register_dsp_parameter {
                __u8 hp_paired_assignment;
                __u8 reserved[5];
        } output;
+       struct {
+               __u8 boost_flag;
+               __u8 nominal_level_flag;
+               __u8 reserved[6];
+       } line_input;
 };
 
 // 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 244f7ad..85faf7a 100644 (file)
--- a/sound/firewire/motu/motu-register-dsp-message-parser.c
+++ b/sound/firewire/motu/motu-register-dsp-message-parser.c
@@ -219,6 +219,12 @@ void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const str
                        case HP_OUTPUT_PAIRED_ASSIGNMENT:
                                parser->param.output.hp_paired_assignment = val;
                                break;
+                       case LINE_INPUT_BOOST:
+                               parser->param.line_input.boost_flag = val;
+                               break;
+                       case LINE_INPUT_NOMINAL_LEVEL:
+                               parser->param.line_input.nominal_level_flag = val;
+                               break;
                        case METER:
                        {
                                u8 pos;