linux-kernel - [PATCH v3] ASoC: qcom: Add four speaker support on MI2S secondary

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>] [day] [month] [year] [list]

Message-Id: <20210608123644.31398-1-srivasam@codeaurora.org>
Date:   Tue,  8 Jun 2021 18:06:44 +0530
From:   Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
To:     agross@...nel.org, bjorn.andersson@...aro.org, lgirdwood@...il.com,
        broonie@...nel.org, robh+dt@...nel.org, plai@...eaurora.org,
        bgoswami@...eaurora.org, perex@...ex.cz, tiwai@...e.com,
        srinivas.kandagatla@...aro.org, rohitkr@...eaurora.org,
        linux-arm-msm@...r.kernel.org, alsa-devel@...a-project.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        swboyd@...omium.org, judyhsiao@...omium.org
Cc:     Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
Subject: [PATCH v3] ASoC: qcom: Add four speaker support on MI2S secondary

Add four speaker support on MI2S secondary block
by using I2S SD1 line on gpio52 pin, and add channel map
control support in the lpass-cpu audio driver.

Signed-off-by: Srinivasa Rao Mandadapu <srivasam@...eaurora.org>
---
 sound/soc/qcom/lpass-cpu.c    | 40 ++++++++++++++++++++++++++++++++++-
 sound/soc/qcom/lpass-sc7180.c |  1 +
 sound/soc/qcom/lpass.h        |  8 ++++++-
 3 files changed, 47 insertions(+), 2 deletions(-)

diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c
index c62d2612e8f5..d03cc359983a 100644
--- a/sound/soc/qcom/lpass-cpu.c
+++ b/sound/soc/qcom/lpass-cpu.c
@@ -324,10 +324,43 @@ const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops = {
 };
 EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_ops);
 
+int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
+				struct snd_soc_dai *dai)
+{
+	int ret;
+	struct snd_soc_dai_driver *drv = dai->driver;
+	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
+
+	ret =  snd_pcm_add_chmap_ctls(rtd->pcm, SNDRV_PCM_STREAM_PLAYBACK,
+			snd_pcm_alt_chmaps, drv->playback.channels_max, 0,
+			&drvdata->chmap_info);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(lpass_cpu_pcm_new);
+
 int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai)
 {
 	struct lpass_data *drvdata = snd_soc_dai_get_drvdata(dai);
-	int ret;
+	struct snd_soc_dai_driver *drv = dai->driver;
+	int ret, i;
+
+	drvdata->rx_chmap.channels = drv->playback.channels_max;
+	drvdata->tx_chmap.channels = drv->playback.channels_max;
+
+	if (drv->playback.channels_max == 2)
+		drvdata->chmap_idx = 1;
+	else if (drv->playback.channels_max == 4)
+		drvdata->chmap_idx = 2;
+
+	for (i = 0; i < drv->playback.channels_max; i++) {
+		drvdata->tx_chmap.map[i] =
+				snd_pcm_alt_chmaps[drvdata->chmap_idx].map[i];
+		drvdata->rx_chmap.map[i] =
+				snd_pcm_alt_chmaps[drvdata->chmap_idx].map[i];
+	}
 
 	/* ensure audio hardware is disabled */
 	ret = regmap_write(drvdata->lpaif_map,
@@ -856,6 +889,11 @@ int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev)
 				PTR_ERR(drvdata->mi2s_bit_clk[dai_id]));
 			return PTR_ERR(drvdata->mi2s_bit_clk[dai_id]);
 		}
+		if (drvdata->mi2s_playback_sd_mode[dai_id] ==
+			LPAIF_I2SCTL_MODE_QUAD01) {
+			variant->dai_driver[dai_id].playback.channels_min = 4;
+			variant->dai_driver[dai_id].playback.channels_max = 4;
+		}
 	}
 
 	/* Allocation for i2sctl regmap fields */
diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c
index 8c168d3c589e..77a556b27cf0 100644
--- a/sound/soc/qcom/lpass-sc7180.c
+++ b/sound/soc/qcom/lpass-sc7180.c
@@ -58,6 +58,7 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = {
 		},
 		.probe	= &asoc_qcom_lpass_cpu_dai_probe,
 		.ops    = &asoc_qcom_lpass_cpu_dai_ops,
+		.pcm_new = lpass_cpu_pcm_new,
 	}, {
 		.id = LPASS_DP_RX,
 		.name = "Hdmi",
diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h
index 83b2e08ade06..db239ea52946 100644
--- a/sound/soc/qcom/lpass.h
+++ b/sound/soc/qcom/lpass.h
@@ -110,6 +110,11 @@ struct lpass_data {
 	struct lpass_hdmitx_dmactl *hdmi_tx_dmactl[LPASS_MAX_HDMI_DMA_CHANNELS];
 	struct lpass_dp_metadata_ctl *meta_ctl;
 	struct lpass_sstream_ctl *sstream_ctl;
+	/* Channel map information */
+	struct snd_pcm_chmap *chmap_info;
+	struct snd_pcm_chmap_elem rx_chmap;
+	struct snd_pcm_chmap_elem tx_chmap;
+	int chmap_idx;
 };
 
 /* Vairant data per each SOC */
@@ -259,5 +264,6 @@ void asoc_qcom_lpass_cpu_platform_shutdown(struct platform_device *pdev);
 int asoc_qcom_lpass_cpu_platform_probe(struct platform_device *pdev);
 int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai);
 extern const struct snd_soc_dai_ops asoc_qcom_lpass_cpu_dai_ops;
-
+int lpass_cpu_pcm_new(struct snd_soc_pcm_runtime *rtd,
+				struct snd_soc_dai *dai);
 #endif /* __LPASS_H__ */
-- 
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center, Inc.,
is a member of Code Aurora Forum, a Linux Foundation Collaborative Project.