The values of bclk and fsync are inverted WRT the codec. But the existing
solution already works for Broadwell, see the alsa-lib config:
`alsa-lib/src/conf/topology/broadwell/broadwell.conf`
This commit provides the backwards-compatible solution to fix this misuse.
Signed-off-by: Kirill Marinushkin <k.marinush...@gmail.com>
Tested-by: Pan Xiuli <xiuli....@linux.intel.com>
Tested-by: Pierre-Louis Bossart <pierre-louis.boss...@linux.intel.com>
Cc: Jaroslav Kysela <pe...@perex.cz>
Cc: Takashi Iwai <ti...@suse.de>
Cc: Mark Brown <broo...@kernel.org>
Cc: Liam Girdwood <liam.r.girdw...@linux.intel.com>
Cc: linux-kernel@vger.kernel.org
Cc: alsa-de...@alsa-project.org
---
include/uapi/sound/asoc.h | 16 ++++++++++++++--
sound/soc/soc-topology.c | 12 +++++++-----
2 files changed, 21 insertions(+), 7 deletions(-)
diff --git a/include/uapi/sound/asoc.h b/include/uapi/sound/asoc.h
index 69c37ecbff7e..f0e5e21efa54 100644
--- a/include/uapi/sound/asoc.h
+++ b/include/uapi/sound/asoc.h
@@ -160,6 +160,18 @@
#define SND_SOC_TPLG_LNK_FLGBIT_SYMMETRIC_SAMPLEBITS (1 << 2)
#define SND_SOC_TPLG_LNK_FLGBIT_VOICE_WAKEUP (1 << 3)
+/* DAI topology BCLK parameter
+ * For the backwards capability, by default codec is bclk master
+ */
+#define SND_SOC_TPLG_BCLK_CM 0 /* codec is bclk master */
+#define SND_SOC_TPLG_BCLK_CS 1 /* codec is bclk slave */
+
+/* DAI topology FSYNC parameter
+ * For the backwards capability, by default codec is fsync master
+ */
+#define SND_SOC_TPLG_FSYNC_CM 0 /* codec is fsync master */
+#define SND_SOC_TPLG_FSYNC_CS 1 /* codec is fsync slave */
+
/*
* Block Header.
* This header precedes all object and object arrays below.
@@ -315,8 +327,8 @@ struct snd_soc_tplg_hw_config {
__u8 clock_gated; /* 1 if clock can be gated to save power */
__u8 invert_bclk; /* 1 for inverted BCLK, 0 for normal */
__u8 invert_fsync; /* 1 for inverted frame clock, 0 for normal */
- __u8 bclk_master; /* 1 for master of BCLK, 0 for slave */
- __u8 fsync_master; /* 1 for master of FSYNC, 0 for slave */
+ __u8 bclk_master; /* SND_SOC_TPLG_BCLK_ value */
+ __u8 fsync_master; /* SND_SOC_TPLG_FSYNC_ value */
__u8 mclk_direction; /* 0 for input, 1 for output */
__le16 reserved; /* for 32bit alignment */
__le32 mclk_rate; /* MCLK or SYSCLK freqency in Hz */
diff --git a/sound/soc/soc-topology.c b/sound/soc/soc-topology.c
index 01a50413c66f..c5bdc673b195 100644
--- a/sound/soc/soc-topology.c
+++ b/sound/soc/soc-topology.c
@@ -1994,13 +1994,15 @@ static void set_link_hw_format(struct snd_soc_dai_link
*link,
link->dai_fmt |= SND_SOC_DAIFMT_IB_IF;
/* clock masters */
- bclk_master = hw_config->bclk_master;
- fsync_master = hw_config->fsync_master;
- if (!bclk_master && !fsync_master)
+ bclk_master = (hw_config->bclk_master ==
+ SND_SOC_TPLG_BCLK_CM);
+ fsync_master = (hw_config->fsync_master ==
+ SND_SOC_TPLG_FSYNC_CM);
+ if (bclk_master && fsync_master)
link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
- else if (bclk_master && !fsync_master)
- link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
else if (!bclk_master && fsync_master)
+ link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFM;
+ else if (bclk_master && !fsync_master)
link->dai_fmt |= SND_SOC_DAIFMT_CBM_CFS;
else
link->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
--
2.13.6
