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From: Wesley Cheng <quic_wcheng@quicinc.com>
To: <srinivas.kandagatla@linaro.org>, <mathias.nyman@intel.com>,
	<perex@perex.cz>, <conor+dt@kernel.org>, <corbet@lwn.net>,
	<lgirdwood@gmail.com>, <andersson@kernel.org>,
	<krzysztof.kozlowski+dt@linaro.org>, <gregkh@linuxfoundation.org>,
	<Thinh.Nguyen@synopsys.com>, <broonie@kernel.org>,
	<bgoswami@quicinc.com>, <tiwai@suse.com>, <robh@kernel.org>,
	<konrad.dybcio@linaro.org>
Cc: <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>,
	<linux-sound@vger.kernel.org>, <linux-usb@vger.kernel.org>,
	<linux-arm-msm@vger.kernel.org>, <linux-doc@vger.kernel.org>,
	<alsa-devel@alsa-project.org>,
	Wesley Cheng <quic_wcheng@quicinc.com>
Subject: [PATCH v20 33/41] ASoC: usb: Create SOC USB SND jack kcontrol
Date: Thu, 25 Apr 2024 14:51:17 -0700	[thread overview]
Message-ID: <20240425215125.29761-34-quic_wcheng@quicinc.com> (raw)
In-Reply-To: <20240425215125.29761-1-quic_wcheng@quicinc.com>

Expose API for creation of a jack control for notifying of available
devices that are plugged in/discovered, and that support offloading.  This
allows for control names to be standardized across implementations of USB
audio offloading.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 include/sound/soc-usb.h | 10 ++++++++++
 sound/soc/soc-usb.c     | 37 ++++++++++++++++++++++++++++++++++++-
 2 files changed, 46 insertions(+), 1 deletion(-)

diff --git a/include/sound/soc-usb.h b/include/sound/soc-usb.h
index 5e6076f65a41..3137f538270f 100644
--- a/include/sound/soc-usb.h
+++ b/include/sound/soc-usb.h
@@ -6,6 +6,8 @@
 #ifndef __LINUX_SND_SOC_USB_H
 #define __LINUX_SND_SOC_USB_H
 
+#include <sound/soc.h>
+
 enum snd_soc_usb_kctl {
 	SND_SOC_USB_KCTL_CARD_ROUTE,
 	SND_SOC_USB_KCTL_PCM_ROUTE,
@@ -88,6 +90,8 @@ int snd_soc_usb_prepare_session(struct snd_soc_usb *usb, int card_idx, int pcm_i
 int snd_soc_usb_shutdown_session(struct snd_soc_usb *usb, int session_id);
 int snd_soc_usb_set_session_state(struct snd_soc_usb *usb, int session_id,
 				  enum snd_soc_usb_dai_state state);
+int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component,
+					struct snd_soc_jack *jack);
 
 struct snd_soc_usb *snd_soc_usb_allocate_port(struct snd_soc_component *component,
 					      int num_streams, void *data);
@@ -143,6 +147,12 @@ static inline int snd_soc_usb_set_session_state(struct snd_soc_usb *usb,
 	return -EINVAL;
 }
 
+static inline int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component,
+						 struct snd_soc_jack *jack)
+{
+	return -ENODEV;
+}
+
 static inline struct snd_soc_usb *snd_soc_usb_allocate_port(
 					      struct snd_soc_component *component,
 					      int num_streams, void *data)
diff --git a/sound/soc/soc-usb.c b/sound/soc/soc-usb.c
index e291f146a79d..27c76a33da32 100644
--- a/sound/soc/soc-usb.c
+++ b/sound/soc/soc-usb.c
@@ -4,8 +4,10 @@
  */
 #include <linux/of.h>
 #include <linux/usb.h>
-#include <sound/soc.h>
+
+#include <sound/jack.h>
 #include <sound/soc-usb.h>
+
 #include "../usb/card.h"
 
 static DEFINE_MUTEX(ctx_mutex);
@@ -42,6 +44,39 @@ static struct snd_soc_usb *snd_soc_find_usb_ctx(struct device_node *node)
 }
 
 /* SOC USB sound kcontrols */
+/**
+ * snd_soc_usb_setup_offload_jack() - Create USB offloading jack
+ * @component: USB DPCM backend DAI component
+ * @jack: jack structure to create
+ *
+ * Creates a jack device for notifying userspace of the availability
+ * of an offload capable device.
+ *
+ * Returns 0 on success, negative on error.
+ *
+ */
+int snd_soc_usb_setup_offload_jack(struct snd_soc_component *component,
+					struct snd_soc_jack *jack)
+{
+	int ret;
+
+	ret = snd_soc_card_jack_new(component->card, "USB Offload Playback Jack",
+					SND_JACK_HEADPHONE, jack);
+	if (ret < 0) {
+		dev_err(component->card->dev, "Unable to add USB offload jack\n");
+		return ret;
+	}
+
+	ret = snd_soc_component_set_jack(component, jack, NULL);
+	if (ret) {
+		dev_warn(component->card->dev, "Failed to set jack: %d\n", ret);
+		return ret;
+	}
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(snd_soc_usb_setup_offload_jack);
+
 static int snd_soc_usb_get_offload_card_status(struct snd_kcontrol *kcontrol,
 				   struct snd_ctl_elem_value *ucontrol)
 {

  parent reply	other threads:[~2024-04-25 21:52 UTC|newest]

Thread overview: 55+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-04-25 21:50 [PATCH v20 00/41] Introduce QC USB SND audio offloading support Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 01/41] xhci: add helper to stop endpoint and wait for completion Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 02/41] usb: host: xhci: Export enable and disable interrupter APIs Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 03/41] usb: host: xhci: Repurpose event handler for skipping interrupter events Wesley Cheng
2024-04-30 11:02   ` Mathias Nyman
2024-04-30 21:57     ` Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 04/41] xhci: export XHCI IMOD setting helper for interrupters Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 05/41] xhci: sideband: add initial api to register a sideband entity Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 06/41] usb: host: xhci-sideband: Expose a sideband interrupter enable API Wesley Cheng
2024-05-02 11:07   ` Mathias Nyman
2024-05-02 23:37     ` Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 07/41] usb: host: xhci-mem: Cleanup pending secondary event ring events Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 08/41] usb: host: xhci-mem: Allow for interrupter clients to choose specific index Wesley Cheng
2024-04-26 13:24   ` Amadeusz Sławiński
2024-04-26 20:03     ` Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 09/41] ASoC: Add SOC USB APIs for adding an USB backend Wesley Cheng
2024-04-26 13:25   ` Amadeusz Sławiński
2024-04-26 21:55     ` Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 10/41] ASoC: dt-bindings: qcom,q6dsp-lpass-ports: Add USB_RX port Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 11/41] ASoC: qcom: qdsp6: Introduce USB AFE port to q6dsp Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 12/41] ASoC: qdsp6: q6afe: Increase APR timeout Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 13/41] ASoC: qcom: qdsp6: Add USB backend ASoC driver for Q6 Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 14/41] ALSA: usb-audio: Introduce USB SND platform op callbacks Wesley Cheng
2024-04-25 21:50 ` [PATCH v20 15/41] ALSA: usb-audio: Export USB SND APIs for modules Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 16/41] ALSA: usb-audio: Save UAC sample size information Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 17/41] usb: dwc3: Specify maximum number of XHCI interrupters Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 18/41] usb: host: xhci-plat: Set XHCI max interrupters if property is present Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 19/41] ALSA: usb-audio: qcom: Add USB QMI definitions Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 20/41] ALSA: usb-audio: qcom: Introduce QC USB SND offloading support Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 21/41] ALSA: usb-audio: Check for support for requested audio format Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 22/41] ASoC: usb: Add PCM format check API for USB backend Wesley Cheng
2024-04-26 13:25   ` Amadeusz Sławiński
2024-04-30  8:01     ` Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 23/41] ASoC: qcom: qdsp6: Ensure PCM format is supported by USB audio device Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 24/41] ALSA: usb-audio: Prevent starting of audio stream if in use Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 25/41] ALSA: usb-audio: Do not allow USB offload path if PCM device is " Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 26/41] ASoC: dt-bindings: Update example for enabling USB offload on SM8250 Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 27/41] ALSA: usb-audio: qcom: Populate PCM and USB chip information Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 28/41] ASoC: qcom: qdsp6: Add support to track available USB PCM devices Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 29/41] ASoC: Introduce SND kcontrols to select sound card and PCM device Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 30/41] ASoC: qcom: qdsp6: Add SOC USB offload select get/put callbacks Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 31/41] ASoC: Introduce SND kcontrols to track USB offloading state Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 32/41] ASoC: qcom: qdsp6: Add PCM ops to track current state Wesley Cheng
2024-04-25 21:51 ` Wesley Cheng [this message]
2024-04-26 13:26   ` [PATCH v20 33/41] ASoC: usb: Create SOC USB SND jack kcontrol Amadeusz Sławiński
2024-05-01  0:32     ` Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 34/41] ASoC: qcom: qdsp6: Add headphone jack for offload connection status Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 35/41] ASoC: usb: Fetch ASoC sound card information Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 36/41] ALSA: usb-audio: Add USB offloading capable kcontrol Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 37/41] ALSA: usb-audio: Allow for rediscovery of connected USB SND devices Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 38/41] ALSA: usb-audio: qcom: Use card and PCM index from QMI request Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 39/41] ASoC: usb: Rediscover USB SND devices on USB port add Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 40/41] ASoC: qcom: Populate SoC components string Wesley Cheng
2024-04-25 21:51 ` [PATCH v20 41/41] ASoC: doc: Add documentation for SOC USB Wesley Cheng
2024-04-26  3:36   ` Bagas Sanjaya

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