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From: Takashi Sakamoto <o-takashi@sakamocchi.jp>
To: tiwai@suse.de
Cc: alsa-devel@alsa-project.org, clemens@ladisch.de
Subject: [PATCH 6/9] ALSA: firewire-motu: code refactoring for source detection of sampling clock in v3 protocol
Date: Wed, 23 Jun 2021 16:59:38 +0900	[thread overview]
Message-ID: <20210623075941.72562-7-o-takashi@sakamocchi.jp> (raw)
In-Reply-To: <20210623075941.72562-1-o-takashi@sakamocchi.jp>

Current implementation of driver has two similar helper functions for
source detection of sampling clock. This commit merges them as a code
refactoring.

Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
---
 sound/firewire/motu/motu-protocol-v3.c | 59 ++++++--------------------
 1 file changed, 12 insertions(+), 47 deletions(-)

diff --git a/sound/firewire/motu/motu-protocol-v3.c b/sound/firewire/motu/motu-protocol-v3.c
index 77e61e89770b..ab113651107b 100644
--- a/sound/firewire/motu/motu-protocol-v3.c
+++ b/sound/firewire/motu/motu-protocol-v3.c
@@ -97,9 +97,19 @@ int snd_motu_protocol_v3_set_clock_rate(struct snd_motu *motu,
 	return 0;
 }
 
-static int detect_clock_source_828mk3(struct snd_motu *motu, u32 data,
-				      enum snd_motu_clock_source *src)
+int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
+					  enum snd_motu_clock_source *src)
 {
+	__be32 reg;
+	u32 data;
+	int err;
+
+	err = snd_motu_transaction_read(motu, V3_CLOCK_STATUS_OFFSET, &reg,
+					sizeof(reg));
+	if (err < 0)
+		return err;
+	data = be32_to_cpu(reg) & V3_CLOCK_SOURCE_MASK;
+
 	switch (data) {
 	case 0x00:
 		*src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
@@ -118,7 +128,6 @@ static int detect_clock_source_828mk3(struct snd_motu *motu, u32 data,
 	{
 		__be32 reg;
 		u32 options;
-		int err;
 
 		err = snd_motu_transaction_read(motu,
 				V3_OPT_IFACE_MODE_OFFSET, &reg, sizeof(reg));
@@ -137,7 +146,6 @@ static int detect_clock_source_828mk3(struct snd_motu *motu, u32 data,
 			else
 				*src = SND_MOTU_CLOCK_SOURCE_ADAT_ON_OPT_B;
 		}
-
 		break;
 	}
 	default:
@@ -148,49 +156,6 @@ static int detect_clock_source_828mk3(struct snd_motu *motu, u32 data,
 	return 0;
 }
 
-static int v3_detect_clock_source(struct snd_motu *motu, u32 data,
-				  enum snd_motu_clock_source *src)
-{
-	switch (data) {
-	case 0x00:
-		*src = SND_MOTU_CLOCK_SOURCE_INTERNAL;
-		break;
-	case 0x01:
-		*src = SND_MOTU_CLOCK_SOURCE_WORD_ON_BNC;
-		break;
-	case 0x02:
-		*src = SND_MOTU_CLOCK_SOURCE_SPH;
-		break;
-	case 0x10:
-		*src = SND_MOTU_CLOCK_SOURCE_SPDIF_ON_COAX;
-		break;
-	default:
-		*src = SND_MOTU_CLOCK_SOURCE_UNKNOWN;
-		break;
-	}
-
-	return 0;
-}
-
-int snd_motu_protocol_v3_get_clock_source(struct snd_motu *motu,
-					  enum snd_motu_clock_source *src)
-{
-	__be32 reg;
-	u32 data;
-	int err;
-
-	err = snd_motu_transaction_read(motu, V3_CLOCK_STATUS_OFFSET, &reg,
-					sizeof(reg));
-	if (err < 0)
-		return err;
-	data = be32_to_cpu(reg) & V3_CLOCK_SOURCE_MASK;
-
-	if (motu->spec == &snd_motu_spec_828mk3_fw || motu->spec == &snd_motu_spec_828mk3_hybrid)
-		return detect_clock_source_828mk3(motu, data, src);
-	else
-		return v3_detect_clock_source(motu, data, src);
-}
-
 int snd_motu_protocol_v3_switch_fetching_mode(struct snd_motu *motu,
 					      bool enable)
 {
-- 
2.30.2


  parent reply	other threads:[~2021-06-23  8:04 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-23  7:59 [PATCH 0/9] ALSA: firewire-motu: misc fixes and code refactoring Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 1/9] ALSA: firewire-motu: fix detection for S/PDIF source on optical interface in v2 protocol Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 2/9] ALSA: firewire-motu: code refactoring for detection of clock source " Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 3/9] ALSA: firewire-motu: add support for AES/EBU " Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 4/9] ALSA: firewire-motu: use macro instead of magic number for " Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 5/9] ALSA: firewire-motu: code refactoring for packet format detection " Takashi Sakamoto
2021-06-23  7:59 ` Takashi Sakamoto [this message]
2021-06-23  7:59 ` [PATCH 7/9] ALSA: firewire-motu: use macro instead of magic number for clock source in v3 protocol Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 8/9] ALSA: firewire-motu: fix register handling for 828 Takashi Sakamoto
2021-06-23  7:59 ` [PATCH 9/9] ALSA: firewire-motu: fix register handling for 896 Takashi Sakamoto
2021-06-23  8:54 ` [PATCH 0/9] ALSA: firewire-motu: misc fixes and code refactoring Takashi Iwai

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