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authorTakashi Sakamoto <o-takashi@sakamocchi.jp>2021-06-23 16:59:39 +0900
committerTakashi Iwai <tiwai@suse.de>2021-06-23 10:17:27 +0200
commit7203233ea7fde84a3f7a3a1b1498988d3db3ce88 (patch)
treee81b9b24cee8dd02cecebfd8ae393193cb903e14 /sound
parentef8f14ad2aeceda904b2fdfb54a366f2095620a5 (diff)
downloadlinux-7203233ea7fde84a3f7a3a1b1498988d3db3ce88.tar.bz2
ALSA: firewire-motu: use macro instead of magic number for clock source in v3 protocol
This commit adds a series of macro for source of sampling clock in version 3 protocol. Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp> Link: https://lore.kernel.org/r/20210623075941.72562-8-o-takashi@sakamocchi.jp Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/firewire/motu/motu-protocol-v3.c20
1 files changed, 13 insertions, 7 deletions
diff --git a/sound/firewire/motu/motu-protocol-v3.c b/sound/firewire/motu/motu-protocol-v3.c
index ab113651107b..56e4504e7ec9 100644
--- a/sound/firewire/motu/motu-protocol-v3.c
+++ b/sound/firewire/motu/motu-protocol-v3.c
@@ -13,6 +13,12 @@
#define V3_CLOCK_RATE_MASK 0x0000ff00
#define V3_CLOCK_RATE_SHIFT 8
#define V3_CLOCK_SOURCE_MASK 0x000000ff
+#define V3_CLOCK_SRC_INTERNAL 0x00
+#define V3_CLOCK_SRC_WORD_ON_BNC 0x01
+#define V3_CLOCK_SRC_SPH 0x02
+#define V3_CLOCK_SRC_SPDIF_ON_COAX 0x10
+#define V3_CLOCK_SRC_OPT_IFACE_A 0x18
+#define V3_CLOCK_SRC_OPT_IFACE_B 0x19
#define V3_OPT_IFACE_MODE_OFFSET 0x0c94
#define V3_ENABLE_OPT_IN_IFACE_A 0x00000001
@@ -111,20 +117,20 @@ int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
data = be32_to_cpu(reg) & V3_CLOCK_SOURCE_MASK;
switch (data) {
- case 0x00:
+ case V3_CLOCK_SRC_INTERNAL:
*src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
break;
- case 0x01:
+ case V3_CLOCK_SRC_WORD_ON_BNC:
*src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
break;
- case 0x02:
+ case V3_CLOCK_SRC_SPH:
*src = SND_MOTU_CLOCK_SOURCE_SPH;
break;
- case 0x10:
+ case V3_CLOCK_SRC_SPDIF_ON_COAX:
*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
break;
- case 0x18:
- case 0x19:
+ case V3_CLOCK_SRC_OPT_IFACE_A:
+ case V3_CLOCK_SRC_OPT_IFACE_B:
{
__be32 reg;
u32 options;
@@ -135,7 +141,7 @@ int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
return err;
options = be32_to_cpu(reg);
- if (data == 0x18) {
+ if (data == V3_CLOCK_SRC_OPT_IFACE_A) {
if (options & V3_NO_ADAT_OPT_IN_IFACE_A)
*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A;
else