linux-kernel - [PATCH 3/7] ASoC: cs43130: Allow configuration of bit clock and frame inversion

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <20231117141344.64320-4-mstrozek@opensource.cirrus.com>
Date:   Fri, 17 Nov 2023 14:13:40 +0000
From:   Maciej Strozek <mstrozek@...nsource.cirrus.com>
To:     Mark Brown <broonie@...nel.org>
CC:     James Schulman <james.schulman@...rus.com>,
        David Rhodes <david.rhodes@...rus.com>,
        Liam Girdwood <lgirdwood@...il.com>,
        <alsa-devel@...a-project.org>, <patches@...nsource.cirrus.com>,
        <linux-sound@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        Maciej Strozek <mstrozek@...nsource.cirrus.com>
Subject: [PATCH 3/7] ASoC: cs43130: Allow configuration of bit clock and frame inversion

Signed-off-by: Maciej Strozek <mstrozek@...nsource.cirrus.com>
---
 sound/soc/codecs/cs43130.c | 42 ++++++++++++++++++++++++++++++++++++--
 sound/soc/codecs/cs43130.h |  1 +
 2 files changed, 41 insertions(+), 2 deletions(-)

diff --git a/sound/soc/codecs/cs43130.c b/sound/soc/codecs/cs43130.c
index d8ec325b9cc9..62647045d8c4 100644
--- a/sound/soc/codecs/cs43130.c
+++ b/sound/soc/codecs/cs43130.c
@@ -595,6 +595,27 @@ static int cs43130_set_sp_fmt(int dai_id, unsigned int bitwidth_sclk,
 		return -EINVAL;
 	}
 
+	switch (cs43130->dais[dai_id].dai_invert) {
+	case SND_SOC_DAIFMT_NB_NF:
+		sclk_edge = 1;
+		lrck_edge = 0;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		sclk_edge = 0;
+		lrck_edge = 0;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		sclk_edge = 1;
+		lrck_edge = 1;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		sclk_edge = 0;
+		lrck_edge = 1;
+		break;
+	default:
+		return -EINVAL;
+	}
+
 	switch (cs43130->dais[dai_id].dai_mode) {
 	case SND_SOC_DAIFMT_CBS_CFS:
 		dai_mode_val = 0;
@@ -607,8 +628,6 @@ static int cs43130_set_sp_fmt(int dai_id, unsigned int bitwidth_sclk,
 	}
 
 	frm_size = bitwidth_sclk * params_channels(params);
-	sclk_edge = 1;
-	lrck_edge = 0;
 	loc_ch1 = 0;
 	loc_ch2 = bitwidth_sclk * (params_channels(params) - 1);
 
@@ -1483,6 +1502,25 @@ static int cs43130_pcm_set_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
 		return -EINVAL;
 	}
 
+	switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
+	case SND_SOC_DAIFMT_NB_NF:
+		cs43130->dais[codec_dai->id].dai_invert = SND_SOC_DAIFMT_NB_NF;
+		break;
+	case SND_SOC_DAIFMT_IB_NF:
+		cs43130->dais[codec_dai->id].dai_invert = SND_SOC_DAIFMT_IB_NF;
+		break;
+	case SND_SOC_DAIFMT_NB_IF:
+		cs43130->dais[codec_dai->id].dai_invert = SND_SOC_DAIFMT_NB_IF;
+		break;
+	case SND_SOC_DAIFMT_IB_IF:
+		cs43130->dais[codec_dai->id].dai_invert = SND_SOC_DAIFMT_IB_IF;
+		break;
+	default:
+		dev_err(cs43130->dev, "Unsupported invert mode 0x%x\n",
+			fmt & SND_SOC_DAIFMT_INV_MASK);
+		return -EINVAL;
+	}
+
 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
 	case SND_SOC_DAIFMT_I2S:
 		cs43130->dais[codec_dai->id].dai_format = SND_SOC_DAIFMT_I2S;
diff --git a/sound/soc/codecs/cs43130.h b/sound/soc/codecs/cs43130.h
index 90e8895275e7..c7b2708aebcd 100644
--- a/sound/soc/codecs/cs43130.h
+++ b/sound/soc/codecs/cs43130.h
@@ -497,6 +497,7 @@ struct cs43130_dai {
 	unsigned int			sclk;
 	unsigned int			dai_format;
 	unsigned int			dai_mode;
+	unsigned int			dai_invert;
 };
 
 struct	cs43130_private {
-- 
2.34.1