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>
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@ -13,6 +13,12 @@
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#define V3_CLOCK_RATE_MASK 0x0000ff00
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#define V3_CLOCK_RATE_SHIFT 8
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#define V3_CLOCK_SOURCE_MASK 0x000000ff
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#define V3_CLOCK_SRC_INTERNAL 0x00
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#define V3_CLOCK_SRC_WORD_ON_BNC 0x01
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#define V3_CLOCK_SRC_SPH 0x02
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#define V3_CLOCK_SRC_SPDIF_ON_COAX 0x10
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#define V3_CLOCK_SRC_OPT_IFACE_A 0x18
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#define V3_CLOCK_SRC_OPT_IFACE_B 0x19
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#define V3_OPT_IFACE_MODE_OFFSET 0x0c94
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#define V3_ENABLE_OPT_IN_IFACE_A 0x00000001
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@ -111,20 +117,20 @@ int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
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data = be32_to_cpu(reg) & V3_CLOCK_SOURCE_MASK;
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switch (data) {
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case 0x00:
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case V3_CLOCK_SRC_INTERNAL:
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*src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
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break;
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case 0x01:
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case V3_CLOCK_SRC_WORD_ON_BNC:
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*src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
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break;
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case 0x02:
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case V3_CLOCK_SRC_SPH:
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*src = SND_MOTU_CLOCK_SOURCE_SPH;
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break;
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case 0x10:
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case V3_CLOCK_SRC_SPDIF_ON_COAX:
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*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
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break;
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case 0x18:
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case 0x19:
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case V3_CLOCK_SRC_OPT_IFACE_A:
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case V3_CLOCK_SRC_OPT_IFACE_B:
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{
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__be32 reg;
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u32 options;
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@ -135,7 +141,7 @@ int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
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return err;
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options = be32_to_cpu(reg);
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if (data == 0x18) {
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if (data == V3_CLOCK_SRC_OPT_IFACE_A) {
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if (options & V3_NO_ADAT_OPT_IN_IFACE_A)
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*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_OPT_A;
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else
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