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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2020-05-19 14:16:39 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2020-05-22 17:52:18 +0300 |
| commit | 2b8f050e4ea97bd9851d023935e0ca5229e6905b (patch) | |
| tree | a1550f5970f4f56c37a9bbac5c7110ca87667208 /sound/firewire/motu/motu-protocol-v2.c | |
| parent | 739bdbaec76ae7e6e2de80c06e1d4ca31e7c96b9 (diff) | |
| download | linux-2b8f050e4ea97bd9851d023935e0ca5229e6905b.tar.xz | |
ALSA: firewire-motu: refactoring protocol v2 for clock source getter
This commit splits the method to get clock source for protocol
version 2 so that model-dependent operations are explicitly defined.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20200519111641.123211-13-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/motu/motu-protocol-v2.c')
| -rw-r--r-- | sound/firewire/motu/motu-protocol-v2.c | 48 |
1 files changed, 40 insertions, 8 deletions
diff --git a/sound/firewire/motu/motu-protocol-v2.c b/sound/firewire/motu/motu-protocol-v2.c index 1bdc905e8e22..2e6c3cc8a9e1 100644 --- a/sound/firewire/motu/motu-protocol-v2.c +++ b/sound/firewire/motu/motu-protocol-v2.c @@ -78,14 +78,10 @@ int snd_motu_protocol_v2_set_clock_rate(struct snd_motu *motu, sizeof(reg)); } -static int get_clock_source(struct snd_motu *motu, u32 data, - enum snd_motu_clock_source *src) +static int detect_clock_source_optical_model(struct snd_motu *motu, u32 data, + enum snd_motu_clock_source *src) { - unsigned int index = data & V2_CLOCK_SRC_MASK; - if (index > 5) - return -EIO; - - switch (index) { + switch (data) { case 0: *src = SND_MOTU_CLOCK_SOURCE_INTERNAL; break; @@ -118,12 +114,48 @@ static int get_clock_source(struct snd_motu *motu, u32 data, *src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB; break; default: - return -EIO; + *src = SND_MOTU_CLOCK_SOURCE_UNKNOWN; + break; + } + + return 0; +} + +static int v2_detect_clock_source(struct snd_motu *motu, u32 data, + enum snd_motu_clock_source *src) +{ + switch (data) { + case 0: + *src = SND_MOTU_CLOCK_SOURCE_INTERNAL; + break; + case 2: + *src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX; + break; + case 3: + *src = SND_MOTU_CLOCK_SOURCE_SPH; + break; + case 4: + *src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC; + break; + default: + *src = SND_MOTU_CLOCK_SOURCE_UNKNOWN; + break; } return 0; } +static int get_clock_source(struct snd_motu *motu, u32 data, + enum snd_motu_clock_source *src) +{ + data &= V2_CLOCK_SRC_MASK; + if (motu->spec == &snd_motu_spec_828mk2 || + motu->spec == &snd_motu_spec_traveler) + return detect_clock_source_optical_model(motu, data, src); + else + return v2_detect_clock_source(motu, data, src); +} + int snd_motu_protocol_v2_get_clock_source(struct snd_motu *motu, enum snd_motu_clock_source *src) { |