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 --- include/uapi/sound/firewire.h | 12 ++++++ .../motu/motu-register-dsp-message-parser.c | 43 ++++++++++++++++++- 2 files changed, 53 insertions(+), 2 deletions(-)
diff --git a/include/uapi/sound/firewire.h b/include/uapi/sound/firewire.h index 049934e2a53c..6366127e923e 100644 --- a/include/uapi/sound/firewire.h +++ b/include/uapi/sound/firewire.h @@ -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 diff --git a/sound/firewire/motu/motu-register-dsp-message-parser.c b/sound/firewire/motu/motu-register-dsp-message-parser.c index 85faf7a4e8a3..d94ca4875714 100644 --- a/sound/firewire/motu/motu-register-dsp-message-parser.c +++ b/sound/firewire/motu/motu-register-dsp-message-parser.c @@ -87,6 +87,9 @@ struct msg_parser { u8 prev_mixer_src_type; u8 mixer_ch; u8 mixer_src_ch; + + u8 input_ch; + u8 prev_msg_type; };
int snd_motu_register_dsp_message_parser_new(struct snd_motu *motu) @@ -109,6 +112,7 @@ int snd_motu_register_dsp_message_parser_init(struct snd_motu *motu) parser->prev_mixer_src_type = INVALID; parser->mixer_ch = 0xff; parser->mixer_src_ch = 0xff; + parser->prev_msg_type = INVALID;
return 0; } @@ -225,6 +229,35 @@ void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const str case LINE_INPUT_NOMINAL_LEVEL: parser->param.line_input.nominal_level_flag = val; break; + case INPUT_GAIN_AND_INVERT: + case INPUT_FLAG: + { + struct snd_firewire_motu_register_dsp_parameter *param = &parser->param; + u8 input_ch = parser->input_ch; + + if (parser->prev_msg_type != msg_type) + input_ch = 0; + else + ++input_ch; + + if (input_ch < SNDRV_FIREWIRE_MOTU_REGISTER_DSP_INPUT_COUNT) { + switch (msg_type) { + case INPUT_GAIN_AND_INVERT: + param->input.gain_and_invert[input_ch] = val; + break; + case INPUT_FLAG: + param->input.flag[input_ch] = val; + break; + default: + break; + } + parser->input_ch = input_ch; + } + break; + } + case UNKNOWN_0: + case UNKNOWN_2: + break; case METER: { u8 pos; @@ -239,11 +272,17 @@ void snd_motu_register_dsp_message_parser_parse(struct snd_motu *motu, const str else pos = (pos & 0x1f) + 20; parser->meter.data[pos] = val; - break; + // The message for meter is interruptible to the series of other + // types of messages. Don't cache it. + fallthrough; } + case INVALID: default: - break; + // Don't cache it. + continue; } + + parser->prev_msg_type = msg_type; } }