82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
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/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (c) 2014, 2017-2020, The Linux Foundation. All rights reserved.
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* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved.
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*/
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#ifndef __ESOC_CLIENT_H_
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#define __ESOC_CLIENT_H_
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#include <linux/device.h>
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#include <linux/esoc_ctrl.h>
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#include <linux/notifier.h>
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/* Flag values used with the power_on and power_off hooks */
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#define ESOC_HOOK_MDM_CRASH 0x0001 /* In crash handling path */
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#define ESOC_HOOK_MDM_DOWN 0x0002 /* MDM about to go down */
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struct esoc_client_hook {
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char *name;
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void *priv;
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enum esoc_client_hook_prio prio;
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int (*esoc_link_power_on)(void *priv, unsigned int flags);
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void (*esoc_link_power_off)(void *priv, unsigned int flags);
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u64 (*esoc_link_get_id)(void *priv);
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void (*esoc_link_mdm_crash)(void *priv);
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};
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/*
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* struct esoc_desc: Describes an external soc
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* @name: external soc name
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* @priv: private data for external soc
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*/
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struct esoc_desc {
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const char *name;
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const char *link;
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const char *link_info;
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void *priv;
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};
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#if IS_ENABLED(CONFIG_QCOM_ESOC_CLIENT)
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/* Can return probe deferral */
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struct esoc_desc *devm_register_esoc_client(struct device *dev,
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const char *name);
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void devm_unregister_esoc_client(struct device *dev,
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struct esoc_desc *esoc_desc);
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int esoc_register_client_notifier(struct notifier_block *nb);
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int esoc_register_client_hook(struct esoc_desc *desc,
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struct esoc_client_hook *client_hook);
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int esoc_unregister_client_hook(struct esoc_desc *desc,
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struct esoc_client_hook *client_hook);
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#else
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struct esoc_desc *devm_register_esoc_client(struct device *dev,
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const char *name)
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{
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return NULL;
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}
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void devm_unregister_esoc_client(struct device *dev,
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struct esoc_desc *esoc_desc)
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{
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}
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int esoc_register_client_notifier(struct notifier_block *nb)
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{
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return -EPERM;
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}
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int esoc_register_client_hook(struct esoc_desc *desc,
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struct esoc_client_hook *client_hook)
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{
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return -EPERM;
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}
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int esoc_unregister_client_hook(struct esoc_desc *desc,
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struct esoc_client_hook *client_hook)
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{
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return -EPERM;
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}
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#endif
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#endif
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