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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>
This commit is contained in:
Takashi Sakamoto 2021-06-23 16:59:39 +09:00 committed by Takashi Iwai
parent ef8f14ad2a
commit 7203233ea7
1 changed files with 13 additions and 7 deletions
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20
sound/firewire/motu/motu-protocol-v3.c
View File

@ -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