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

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This commit parses message and cache current parameters of input function,
available for MOTU Ultralite, 4 pre, and Audio Express.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20211015080826.34847-9-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Sakamoto
2021-10-15 17:52:14 +02:00
committed by Takashi Iwai
parent 41cc23389f
commit 7d843c494a
2 changed files with 53 additions and 2 deletions
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include/uapi/sound/firewire.h
+12
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@@ -147,6 +147,8 @@ struct snd_firewire_motu_register_dsp_meter {
#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_COUNT 4
#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_MIXER_SRC_COUNT 20
#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT 10
#define SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT (SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT + 2)
/**
* snd_firewire_motu_register_dsp_parameter - the container for parameters of DSP controlled
@@ -168,6 +170,11 @@ struct snd_firewire_motu_register_dsp_meter {
* @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.
* @input.gain_and_invert: The value including gain and invert for input, only for Ultralite, 4 pre
* and Audio Express.
* @input.flag: The flag of input; e.g. jack detection, phantom power, and pad, only for Ultralite,
* 4 pre and Audio express.
* @reserved: Padding so that the size of structure is kept to 512 byte, but for future extension.
*
* The structure expresses the set of parameters for DSP controlled by register access.
*/
@@ -196,6 +203,11 @@ struct snd_firewire_motu_register_dsp_parameter {
__u8 nominal_level_flag;
__u8 reserved[6];
} line_input;
struct {
__u8 gain_and_invert[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT];
__u8 flag[SNDRV_FIREWIRE_MOTU_REGISTER_DSP_ALIGNED_INPUT_COUNT];
} input;
__u8 reserved[64];
};
// In below MOTU models, software is allowed to control their DSP by command in frame of