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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2021-06-23 16:59:36 +0900
committerTakashi Iwai <tiwai@suse.de>2021-06-23 10:17:25 +0200
commit184aa6b7e1054b235cea3f53ac2dd9276d674659 (patch)
tree76a8b183898bb4bbd8a0e3814d497ed16b6b3825 /sound/firewire
parent683d36690f8a34a6323b6b3a655e5fa56ef80b5f (diff)
downloadlinux-184aa6b7e1054b235cea3f53ac2dd9276d674659.tar.gz
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>
Diffstat (limited to 'sound/firewire')
-rw-r--r--sound/firewire/motu/motu-protocol-v2.c21
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: