mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-09-02 08:32:55 +00:00
1b8d0d87b9
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@quicinc.com> Acked-by: Mark Brown <broonie@kernel.org> Link: https://lore.kernel.org/r/20250409194804.3773260-26-quic_wcheng@quicinc.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
57 lines
1.3 KiB
C
57 lines
1.3 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* Copyright (c) 2022-2025 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);
|
|
int ret = 0;
|
|
|
|
if (cpu_dai->id != USB_RX)
|
|
return -EINVAL;
|
|
|
|
if (!*jack_setup) {
|
|
ret = snd_soc_usb_setup_offload_jack(codec_dai->component, jack);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
*jack_setup = true;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qcom_snd_usb_offload_jack_setup);
|
|
|
|
int qcom_snd_usb_offload_jack_remove(struct snd_soc_pcm_runtime *rtd,
|
|
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);
|
|
int ret = 0;
|
|
|
|
if (cpu_dai->id != USB_RX)
|
|
return -EINVAL;
|
|
|
|
if (*jack_setup) {
|
|
ret = snd_soc_component_set_jack(codec_dai->component, NULL, NULL);
|
|
if (ret)
|
|
return ret;
|
|
}
|
|
|
|
*jack_setup = false;
|
|
|
|
return 0;
|
|
}
|
|
EXPORT_SYMBOL_GPL(qcom_snd_usb_offload_jack_remove);
|
|
MODULE_DESCRIPTION("ASoC Q6 USB offload controls");
|
|
MODULE_LICENSE("GPL");
|