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/* Copyright (c) 2014, 2017-2019, 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 __ESOC_CLIENT_H_
#define __ESOC_CLIENT_H_
#include <linux/device.h>
#include <linux/esoc_ctrl.h>
#include <linux/notifier.h>
enum esoc_client_hook_prio {
ESOC_MHI_HOOK,
ESOC_CNSS_HOOK,
ESOC_MAX_HOOKS
};
struct esoc_link_data {
enum esoc_client_hook_prio prio;
__u64 link_id;
};
/* Flag values used with the power_on and power_off hooks */
#define ESOC_HOOK_MDM_CRASH 0x0001 /* In crash handling path */
#define ESOC_HOOK_MDM_DOWN 0x0002 /* MDM about to go down */
struct esoc_client_hook {
char *name;
void *priv;
enum esoc_client_hook_prio prio;
int (*esoc_link_power_on)(void *priv, unsigned int flags);
void (*esoc_link_power_off)(void *priv, unsigned int flags);
u64 (*esoc_link_get_id)(void *priv);
void (*esoc_link_mdm_crash)(void *priv);
};
/*
* struct esoc_desc: Describes an external soc
* @name: external soc name
* @priv: private data for external soc
*/
struct esoc_desc {
const char *name;
const char *link;
const char *link_info;
void *priv;
};
#ifdef CONFIG_ESOC_CLIENT
/* Can return probe deferral */
struct esoc_desc *devm_register_esoc_client(struct device *dev,
const char *name);
void devm_unregister_esoc_client(struct device *dev,
struct esoc_desc *esoc_desc);
int esoc_register_client_notifier(struct notifier_block *nb);
int esoc_register_client_hook(struct esoc_desc *desc,
struct esoc_client_hook *client_hook);
int esoc_unregister_client_hook(struct esoc_desc *desc,
struct esoc_client_hook *client_hook);
#else
static inline struct esoc_desc *devm_register_esoc_client(struct device *dev,
const char *name)
{
return NULL;
}
static inline void devm_unregister_esoc_client(struct device *dev,
struct esoc_desc *esoc_desc)
{
}
static inline int esoc_register_client_notifier(struct notifier_block *nb)
{
return -EIO;
}
static inline int esoc_register_client_hook(struct esoc_desc *desc,
struct esoc_client_hook *client_hook)
{
return -EIO;
}
static inline int esoc_unregister_client_hook(struct esoc_desc *desc,
struct esoc_client_hook *client_hook)
{
return -EIO;
}
#endif
#endif
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