Merge "dsp: add audio event notifier support" into audio-drivers.lnx.3.0 (4cc52a2b) · Commits · e / devices / android_kernel_xiaomi_nabu

dsp/Kbuild

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		@@ -75,6 +75,7 @@ COMMON_INC := -I$(AUDIO_ROOT)/$(COMMON_DIR)
		############ QDSP6V2 ############

		ifdef CONFIG_SND_SOC_MSM_QDSP6V2_INTF
		Q6_OBJS += msm-audio-event-notify.o
		Q6_OBJS += audio_calibration.o
		Q6_OBJS += audio_cal_utils.o
		Q6_OBJS += q6adm.o

0 → 100644

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		/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*/
		#include <dsp/msm-audio-event-notify.h>
		#include <linux/export.h>

		static ATOMIC_NOTIFIER_HEAD(msm_aud_evt_notifier_list);

		/**
		* msm_aud_evt_register_client - register a client notifier
		* @nb: notifier block to callback on events
		*/
		int msm_aud_evt_register_client(struct notifier_block *nb)
		{
		return atomic_notifier_chain_register(&msm_aud_evt_notifier_list, nb);
		}
		EXPORT_SYMBOL(msm_aud_evt_register_client);

		/**
		* msm_aud_evt_unregister_client - unregister a client notifier
		* @nb: notifier block to callback on events
		*/
		int msm_aud_evt_unregister_client(struct notifier_block *nb)
		{
		return atomic_notifier_chain_unregister(&msm_aud_evt_notifier_list, nb);
		}
		EXPORT_SYMBOL(msm_aud_evt_unregister_client);

		/**
		* msm_aud_evt_notifier_call_chain - notify clients of fb_events
		*
		*/
		int msm_aud_evt_notifier_call_chain(unsigned long val, void *v)
		{
		return atomic_notifier_call_chain(&msm_aud_evt_notifier_list, val, v);
		}
		EXPORT_SYMBOL_GPL(msm_aud_evt_notifier_call_chain);

0 → 100644

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		/* Copyright (c) 2018, The Linux Foundation. All rights reserved.
		*
		* This program is free software; you can redistribute it and/or modify
		* it under the terms of the GNU General Public License version 2 and
		* only version 2 as published by the Free Software Foundation.
		*
		* This program is distributed in the hope that it will be useful,
		* but WITHOUT ANY WARRANTY; without even the implied warranty of
		* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
		* GNU General Public License for more details.
		*
		*/

		#ifndef __MSM_AUDIO_EVENT_NOTIFY_H_
		#define __MSM_AUDIO_EVENT_NOTIFY_H_

		#include <linux/notifier.h>

		#if IS_ENABLED(CONFIG_SND_SOC_MSM_QDSP6V2_INTF)
		int msm_aud_evt_register_client(struct notifier_block *nb);
		int msm_aud_evt_unregister_client(struct notifier_block *nb);
		int msm_aud_evt_notifier_call_chain(unsigned long val, void *v);
		#else
		static inline int msm_aud_evt_register_client(struct notifier_block *nb)
		{
		return -ENOSYS;
		}

		static inline int msm_aud_evt_unregister_client(struct notifier_block *nb)
		{
		return -ENOSYS;
		}

		static inline int msm_aud_evt_notifier_call_chain(unsigned long val, void *v)
		{
		return -ENOSYS;
		}
		#endif

		enum {
		MSM_AUD_DC_EVENT = 1,
		};

		#endif