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Message-ID: <20230725023416.11205-30-quic_wcheng@quicinc.com>
Date: Mon, 24 Jul 2023 19:34:13 -0700
From: Wesley Cheng <quic_wcheng@...cinc.com>
To: <agross@...nel.org>, <andersson@...nel.org>, <robh+dt@...nel.org>,
<krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
<catalin.marinas@....com>, <will@...nel.org>,
<mathias.nyman@...el.com>, <gregkh@...uxfoundation.org>,
<lgirdwood@...il.com>, <broonie@...nel.org>, <perex@...ex.cz>,
<tiwai@...e.com>, <srinivas.kandagatla@...aro.org>,
<bgoswami@...cinc.com>, <Thinh.Nguyen@...opsys.com>
CC: <linux-arm-msm@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-usb@...r.kernel.org>, <alsa-devel@...a-project.org>,
<quic_jackp@...cinc.com>, <pierre-louis.bossart@...ux.intel.com>,
<oneukum@...e.com>, <albertccwang@...gle.com>,
<o-takashi@...amocchi.jp>, Wesley Cheng <quic_wcheng@...cinc.com>
Subject: [PATCH v4 29/32] sound: soc: qcom: q6usb: Add headphone jack for offload connection status
The headphone jack framework has a well defined intrastructure 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/qdsp6/q6usb.c | 17 +++++++++++++++--
1 file changed, 15 insertions(+), 2 deletions(-)
diff --git a/sound/soc/qcom/qdsp6/q6usb.c b/sound/soc/qcom/qdsp6/q6usb.c
index e4ccb9d912b0..860dff8c1438 100644
--- a/sound/soc/qcom/qdsp6/q6usb.c
+++ b/sound/soc/qcom/qdsp6/q6usb.c
@@ -20,6 +20,7 @@
#include <sound/pcm_params.h>
#include <sound/asound.h>
#include <sound/q6usboffload.h>
+#include <sound/jack.h>
#include "q6dsp-lpass-ports.h"
#include "q6afe.h"
@@ -37,6 +38,7 @@ 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;
@@ -279,6 +281,7 @@ static const struct snd_kcontrol_new q6usb_offload_control = {
/* Build a mixer control for a UAC connector control (jack-detect) */
static void q6usb_connector_control_init(struct snd_soc_component *component)
{
+ struct q6usb_port_data *data = dev_get_drvdata(component->dev);
int ret;
ret = snd_ctl_add(component->card->snd_card,
@@ -290,6 +293,11 @@ static void q6usb_connector_control_init(struct snd_soc_component *component)
snd_ctl_new1(&q6usb_offload_dev_ctrl, component));
if (ret < 0)
return;
+
+ ret = snd_soc_card_jack_new(component->card, "USB offload",
+ SND_JACK_HEADSET, &data->hs_jack);
+ if (ret)
+ return;
}
static int q6usb_audio_ports_of_xlate_dai_name(struct snd_soc_component *component,
@@ -322,7 +330,10 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, int card_idx,
mutex_lock(&data->mutex);
if (connected) {
- snd_soc_dapm_enable_pin(dapm, "USB_RX_BE");
+ if (!data->available_card_slot) {
+ snd_soc_dapm_enable_pin(dapm, "USB_RX_BE");
+ snd_jack_report(data->hs_jack.jack, 1);
+ }
/*
* Update the latest USB headset plugged in, if session is
* idle.
@@ -338,8 +349,10 @@ static int q6usb_alsa_connection_cb(struct snd_soc_usb *usb, int card_idx,
clear_bit(card_idx, &data->available_card_slot);
data->status[card_idx].num_pcm = 0;
data->status[card_idx].chip_index = 0;
- if (!data->available_card_slot)
+ if (!data->available_card_slot) {
snd_soc_dapm_disable_pin(dapm, "USB_RX_BE");
+ snd_jack_report(data->hs_jack.jack, 0);
+ }
}
snd_soc_dapm_sync(dapm);
mutex_unlock(&data->mutex);
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