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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2021-06-23 16:59:36 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2021-06-23 10:17:25 +0200 |
| commit | 184aa6b7e1054b235cea3f53ac2dd9276d674659 (patch) | |
| tree | 76a8b183898bb4bbd8a0e3814d497ed16b6b3825 | |
| parent | 683d36690f8a34a6323b6b3a655e5fa56ef80b5f (diff) | |
| download | lwn-184aa6b7e1054b235cea3f53ac2dd9276d674659.tar.gz lwn-184aa6b7e1054b235cea3f53ac2dd9276d674659.zip | |
ALSA: firewire-motu: use macro instead of magic number for clock source in v2 protocol
This commit adds a series of macro for source of sampling clock in
version 2 protocol.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Link: https://lore.kernel.org/r/20210623075941.72562-5-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Iwai <tiwai@suse.de>
| -rw-r--r-- | sound/firewire/motu/motu-protocol-v2.c | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/sound/firewire/motu/motu-protocol-v2.c b/sound/firewire/motu/motu-protocol-v2.c index 7893cc73e983..8865308c2c8e 100644 --- a/sound/firewire/motu/motu-protocol-v2.c +++ b/sound/firewire/motu/motu-protocol-v2.c @@ -12,6 +12,13 @@ #define V2_CLOCK_RATE_SHIFT 3 #define V2_CLOCK_SRC_MASK 0x00000007 #define V2_CLOCK_SRC_SHIFT 0 +#define V2_CLOCK_SRC_AESEBU_ON_XLR 0x07 +#define V2_CLOCK_SRC_ADAT_ON_DSUB 0x05 +#define V2_CLOCK_SRC_WORD_ON_BNC 0x04 +#define V2_CLOCK_SRC_SPH 0x03 +#define V2_CLOCK_SRC_SPDIF 0x02 // on either coaxial or optical +#define V2_CLOCK_SRC_ADAT_ON_OPT 0x01 +#define V2_CLOCK_SRC_INTERNAL 0x00 #define V2_CLOCK_FETCH_ENABLE 0x02000000 #define V2_CLOCK_MODEL_SPECIFIC 0x04000000 @@ -82,13 +89,13 @@ static int get_clock_source(struct snd_motu *motu, u32 data, enum snd_motu_clock_source *src) { switch (data & V2_CLOCK_SRC_MASK) { - case 0: + case V2_CLOCK_SRC_INTERNAL: *src = SND_MOTU_CLOCK_SOURCE_INTERNAL; break; - case 1: + case V2_CLOCK_SRC_ADAT_ON_OPT: *src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT; break; - case 2: + case V2_CLOCK_SRC_SPDIF: { bool support_iec60958_on_opt = (motu->spec == &snd_motu_spec_828mk2 || motu->spec == &snd_motu_spec_traveler); @@ -112,16 +119,16 @@ static int get_clock_source(struct snd_motu *motu, u32 data, } break; } - case 3: + case V2_CLOCK_SRC_SPH: *src = SND_MOTU_CLOCK_SOURCE_SPH; break; - case 4: + case V2_CLOCK_SRC_WORD_ON_BNC: *src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC; break; - case 5: + case V2_CLOCK_SRC_ADAT_ON_DSUB: *src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_DSUB; break; - case 7: + case V2_CLOCK_SRC_AESEBU_ON_XLR: *src = SND_MOTU_CLOCK_SOURCE_AESEBU_ON_XLR; break; default: |