diff mbox series

[v21,38/39] ASoC: qcom: Populate SoC components string

Message ID 20240507195116.9464-39-quic_wcheng@quicinc.com
State New
Headers show
Series Introduce QC USB SND audio offloading support | expand

Commit Message

Wesley Cheng May 7, 2024, 7:51 p.m. UTC
For userspace to know about certain capabilities of the current platform
card, add tags to the components string that it can use to enable support
for that audio path.  In case of USB offloading, the "usboffldplybk: 1" tag
is added to the string.

Signed-off-by: Wesley Cheng <quic_wcheng@quicinc.com>
---
 sound/soc/qcom/sm8250.c            |  3 +++
 sound/soc/qcom/usb_offload_utils.c | 22 ++++++++++++++++++++++
 sound/soc/qcom/usb_offload_utils.h |  7 +++++++
 3 files changed, 32 insertions(+)
diff mbox series

Patch

diff --git a/sound/soc/qcom/sm8250.c b/sound/soc/qcom/sm8250.c
index 6f156c94de01..dc17f7fd3a2b 100644
--- a/sound/soc/qcom/sm8250.c
+++ b/sound/soc/qcom/sm8250.c
@@ -39,6 +39,9 @@  static int sm8250_snd_init(struct snd_soc_pcm_runtime *rtd)
 						&data->usb_offload_jack_setup);
 	else
 		ret = qcom_snd_wcd_jack_setup(rtd, &data->jack, &data->jack_setup);
+
+	qcom_snd_add_components_string(rtd);
+
 	return ret;
 }
 
diff --git a/sound/soc/qcom/usb_offload_utils.c b/sound/soc/qcom/usb_offload_utils.c
index a84394a9b772..2d2ce0687b01 100644
--- a/sound/soc/qcom/usb_offload_utils.c
+++ b/sound/soc/qcom/usb_offload_utils.c
@@ -52,4 +52,26 @@  int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *rtd,
 	return 0;
 }
 EXPORT_SYMBOL_GPL(qcom_snd_usb_offload_jack_remove);
+
+int qcom_snd_add_components_string(struct snd_soc_pcm_runtime *rtd)
+{
+	struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
+	struct snd_soc_card *card = rtd->card;
+	const char *prev = card->components;
+
+	switch (cpu_dai->id) {
+	case USB_RX:
+		card->components = devm_kasprintf(card->dev, GFP_KERNEL, "%s %s",
+					  card->components,
+					  snd_soc_usb_get_components_tag(true));
+	default:
+		break;
+	}
+
+	if (prev && prev != card->components)
+		devm_kfree(card->dev, prev);
+
+	return 0;
+}
+EXPORT_SYMBOL_GPL(qcom_snd_add_components_string);
 MODULE_LICENSE("GPL");
diff --git a/sound/soc/qcom/usb_offload_utils.h b/sound/soc/qcom/usb_offload_utils.h
index d44f78569b47..814fbfa26d36 100644
--- a/sound/soc/qcom/usb_offload_utils.h
+++ b/sound/soc/qcom/usb_offload_utils.h
@@ -13,6 +13,8 @@  int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd,
 
 int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *rtd,
 					bool *jack_setup);
+
+int qcom_snd_add_components_string(struct snd_soc_pcm_runtime *rtd);
 #else
 static inline int qcom_snd_usb_offload_jack_setup(struct snd_soc_pcm_runtime *rtd,
 			    struct snd_soc_jack *jack, bool *jack_setup)
@@ -25,5 +27,10 @@  static inline int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *r
 {
 	return -ENODEV;
 }
+
+static inline int qcom_snd_add_components_string(struct snd_soc_pcm_runtime *rtd)
+{
+	return -ENODEV;
+}
 #endif /* IS_ENABLED(CONFIG_SND_SOC_QCOM_OFFLOAD_UTILS) */
 #endif /* __QCOM_SND_USB_OFFLOAD_UTILS_H__ */