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Message-ID: <20240228013619.29758-35-quic_wcheng@quicinc.com>
Date: Tue, 27 Feb 2024 17:36:12 -0800
From: Wesley Cheng <quic_wcheng@...cinc.com>
To: <srinivas.kandagatla@...aro.org>, <mathias.nyman@...el.com>,
<perex@...ex.cz>, <conor+dt@...nel.org>, <corbet@....net>,
<lgirdwood@...il.com>, <andersson@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <gregkh@...uxfoundation.org>,
<Thinh.Nguyen@...opsys.com>, <broonie@...nel.org>,
<bgoswami@...cinc.com>, <tiwai@...e.com>, <robh+dt@...nel.org>,
<konrad.dybcio@...aro.org>
CC: <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-sound@...r.kernel.org>, <linux-usb@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<alsa-devel@...a-project.org>, Wesley Cheng <quic_wcheng@...cinc.com>
Subject: [PATCH v18 34/41] ASoC: qcom: qdsp6: Add headphone jack for offload connection status
The headphone jack framework has a well defined infrastructure for
notifying userspace entities through input devices. Expose a jack device
that carries information about if an offload capable device is connected.
Applications can further identify specific offloading information through
other SND kcontrols.
Signed-off-by: Wesley Cheng <quic_wcheng@...cinc.com>
---
sound/soc/qcom/Kconfig | 5 +++++
sound/soc/qcom/Makefile | 2 ++
sound/soc/qcom/qdsp6/q6usb.c | 20 ++++++++++++++++++++
sound/soc/qcom/sm8250.c | 12 +++++++++++-
sound/soc/qcom/usb_offload_utils.c | 29 +++++++++++++++++++++++++++++
sound/soc/qcom/usb_offload_utils.h | 20 ++++++++++++++++++++
6 files changed, 87 insertions(+), 1 deletion(-)
create mode 100644 sound/soc/qcom/usb_offload_utils.c
create mode 100644 sound/soc/qcom/usb_offload_utils.h
diff --git a/sound/soc/qcom/Kconfig b/sound/soc/qcom/Kconfig
index a1beafe2b1dd..e5284a93cf9a 100644
--- a/sound/soc/qcom/Kconfig
+++ b/sound/soc/qcom/Kconfig
@@ -118,9 +118,14 @@ config SND_SOC_QDSP6_PRM
tristate
select SND_SOC_QDSP6_PRM_LPASS_CLOCKS
+config SND_SOC_QCOM_OFFLOAD_UTILS
+ tristate
+
config SND_SOC_QDSP6_USB
tristate "SoC ALSA USB offloading backing for QDSP6"
depends on SND_SOC_USB
+ select SND_SOC_QCOM_OFFLOAD_UTILS
+
help
Adds support for USB offloading for QDSP6 ASoC
based platform sound cards. This will enable the
diff --git a/sound/soc/qcom/Makefile b/sound/soc/qcom/Makefile
index 34f3fcb8ee9a..001c287df777 100644
--- a/sound/soc/qcom/Makefile
+++ b/sound/soc/qcom/Makefile
@@ -30,6 +30,7 @@ snd-soc-sc8280xp-objs := sc8280xp.o
snd-soc-qcom-common-objs := common.o
snd-soc-qcom-sdw-objs := sdw.o
snd-soc-x1e80100-objs := x1e80100.o
+snd-soc-qcom-offload-utils-objs := usb_offload_utils.o
obj-$(CONFIG_SND_SOC_STORM) += snd-soc-storm.o
obj-$(CONFIG_SND_SOC_APQ8016_SBC) += snd-soc-apq8016-sbc.o
@@ -42,6 +43,7 @@ obj-$(CONFIG_SND_SOC_SM8250) += snd-soc-sm8250.o
obj-$(CONFIG_SND_SOC_QCOM_COMMON) += snd-soc-qcom-common.o
obj-$(CONFIG_SND_SOC_QCOM_SDW) += snd-soc-qcom-sdw.o
obj-$(CONFIG_SND_SOC_X1E80100) += snd-soc-x1e80100.o
+obj-$(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS) += snd-soc-qcom-offload-utils.o
#DSP lib
obj-$(CONFIG_SND_SOC_QDSP6) += qdsp6/
diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c
index 32971395ab13..c62416215e83 100644
--- a/sound/soc/qcom/qdsp6/q6usb.c
+++ b/sound/soc/qcom/qdsp6/q6usb.c
@@ -14,6 +14,7 @@
#include <linux/slab.h>
#include <sound/asound.h>
+#include <sound/jack.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/q6usboffload.h>
@@ -38,6 +39,7 @@ struct q6usb_status {
struct q6usb_port_data {
struct q6afe_usb_cfg usb_cfg;
struct snd_soc_usb *usb;
+ struct snd_soc_jack *hs_jack;
struct q6usb_offload priv;
struct mutex mutex;
unsigned long available_card_slot;
@@ -252,6 +254,9 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb,
mutex_lock(&data->mutex);
if (connected) {
+ if (!data->available_card_slot)
+ snd_jack_report(data->hs_jack->jack, 1);
+
/*
* Update the latest USB headset plugged in, if session is
* idle.
@@ -274,12 +279,26 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb,
ffs(data->available_card_slot) - 1 : 0;
data->sel_pcm_idx = 0;
}
+
+ if (!data->available_card_slot)
+ snd_jack_report(data->hs_jack->jack, 0);
}
mutex_unlock(&data->mutex);
return 0;
}
+static int q6usb_component_set_jack(struct snd_soc_component *component,
+ struct snd_soc_jack *jack, void *data)
+{
+ struct q6usb_port_data *priv = dev_get_drvdata(component->dev);
+
+ priv->hs_jack = jack;
+ snd_jack_report(jack->jack, priv->available_card_slot ? 1 : 0);
+
+ return 0;
+}
+
static int q6usb_component_probe(struct snd_soc_component *component)
{
struct q6usb_port_data *data = dev_get_drvdata(component->dev);
@@ -320,6 +339,7 @@ static void q6usb_component_remove(struct snd_soc_component *component)
static const struct snd_soc_component_driver q6usb_dai_component = {
.probe = q6usb_component_probe,
+ .set_jack = q6usb_component_set_jack,
.remove = q6usb_component_remove,
.name = "q6usb-dai-component",
.dapm_widgets = q6usb_dai_widgets,
diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c
index d70df72c0160..a4e87dfb1b93 100644
--- a/sound/soc/qcom/sm8250.c
+++ b/sound/soc/qcom/sm8250.c
@@ -12,6 +12,7 @@
#include <linux/input-event-codes.h>
#include "qdsp6/q6afe.h"
#include "common.h"
+#include "usb_offload_utils.h"
#include "sdw.h"
#define DRIVER_NAME "sm8250"
@@ -22,14 +23,23 @@ struct sm8250_snd_data {
struct snd_soc_card *card;
struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
struct snd_soc_jack jack;
+ struct snd_soc_jack usb_offload_jack;
+ bool usb_offload_jack_setup;
bool jack_setup;
};
static int sm8250_snd_init(struct snd_soc_pcm_runtime *rtd)
{
struct sm8250_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
+ struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+ int ret;
- return qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+ if (cpu_dai->id == USB_RX)
+ ret = qcom_snd_usb_offload_jack_setup(rtd, &data->usb_offload_jack,
+ &data->usb_offload_jack_setup);
+ else
+ ret = qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+ return ret;
}
static int sm8250_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
diff --git a/sound/soc/qcom/usb_offload_utils.c b/sound/soc/qcom/usb_offload_utils.c
new file mode 100644
index 000000000000..0be05c1f87a9
--- /dev/null
+++ b/sound/soc/qcom/usb_offload_utils.c
@@ -0,0 +1,29 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+#include <dt-bindings/sound/qcom,q6afe.h>
+#include <linux/module.h>
+#include <sound/jack.h>
+#include <sound/soc-usb.h>
+
+#include "usb_offload_utils.h"
+
+int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_jack *jack, bool *jack_setup)
+{
+ struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+ struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
+
+ if (cpu_dai->id != USB_RX)
+ return 0;
+
+ if (!*jack_setup)
+ snd_soc_usb_setup_offload_jack(codec_dai->component, jack);
+
+ *jack_setup = true;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_snd_usb_offload_jack_setup);
+MODULE_LICENSE("GPL");
diff --git a/sound/soc/qcom/usb_offload_utils.h b/sound/soc/qcom/usb_offload_utils.h
new file mode 100644
index 000000000000..283e81f57f43
--- /dev/null
+++ b/sound/soc/qcom/usb_offload_utils.h
@@ -0,0 +1,20 @@
+/* SPDX-License-Identifier: GPL-2.0
+ *
+ * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ */
+#ifndef __QCOM_SND_USB_OFFLOAD_UTILS_H__
+#define __QCOM_SND_USB_OFFLOAD_UTILS_H__
+
+#include <sound/soc.h>
+
+#if IS_ENABLED(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS)
+int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_jack *jack, bool *jack_setup);
+#else
+static inline int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd,
+ struct snd_soc_jack *jack, bool *jack_setup)
+{
+ return -ENODEV;
+}
+#endif /* IS_ENABLED(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS) */
+#endif /* __QCOM_SND_USB_OFFLOAD_UTILS_H__ */
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