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/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2016, 2020-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved.
*/
#ifndef __AUDIO_SSR_H_
#define __AUDIO_SSR_H_
enum {
AUDIO_SSR_DOMAIN_ADSP,
AUDIO_SSR_DOMAIN_MODEM,
AUDIO_SSR_DOMAIN_CC,
AUDIO_SSR_DOMAIN_MAX
};
#ifdef CONFIG_MSM_QDSP6_SSR
/*
* Use audio_ssr_register to register with the SSR subsystem
*
* domain_id - Service to use, example: AUDIO_SSR_DOMAIN_ADSP
* *nb - Pointer to a notifier block. Provide a callback function
* to be notified of an event for that service. The ioctls
* used by the callback are defined in subsystem_notif.h.
*
* Returns: Success: Client handle
* Failure: Pointer error code
*/
void *audio_ssr_register(const char *domain_name, struct notifier_block *nb);
/*
* Use audio_ssr_deregister to register with the SSR subsystem
*
* handle - Handle received from audio_ssr_register
* *nb - Pointer to a notifier block. Callback function
* Used from audio_ssr_register.
*
* Returns: Success: 0
* Failure: Error code
*/
int audio_ssr_deregister(void *handle, struct notifier_block *nb);
/*
* Use audio_ssr_send_nmi to force a RAM dump on ADSP
* down event.
*
* *ssr_cb_data - *data received from notifier callback
*/
void audio_ssr_send_nmi(void *ssr_cb_data);
#else
static inline void *audio_ssr_register(int domain_id,
struct notifier_block *nb)
{
return NULL;
}
static inline int audio_ssr_deregister(void *handle, struct notifier_block *nb)
{
return 0;
}
static inline void audio_ssr_send_nmi(void *ssr_cb_data)
{
}
#endif /* CONFIG_MSM_QDSP6_SSR */
#endif
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