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/* SPDX-License-Identifier: GPL-2.0-only */
/* Copyright(c) 2023 Intel Corporation */
#ifndef ADF_HEARTBEAT_H_
#define ADF_HEARTBEAT_H_
#include <linux/types.h>
struct adf_accel_dev;
struct dentry;
#define ADF_CFG_HB_TIMER_MIN_MS 200
#define ADF_CFG_HB_TIMER_DEFAULT_MS 500
#define ADF_CFG_HB_COUNT_THRESHOLD 3
enum adf_device_heartbeat_status {
HB_DEV_UNRESPONSIVE = 0,
HB_DEV_ALIVE,
HB_DEV_UNSUPPORTED,
};
struct adf_heartbeat {
unsigned int hb_sent_counter;
unsigned int hb_failed_counter;
unsigned int hb_timer;
u64 last_hb_check_time;
struct hb_dma_addr {
dma_addr_t phy_addr;
void *virt_addr;
} dma;
struct {
struct dentry *base_dir;
struct dentry *status;
struct dentry *cfg;
struct dentry *sent;
struct dentry *failed;
} dbgfs;
};
#ifdef CONFIG_DEBUG_FS
int adf_heartbeat_init(struct adf_accel_dev *accel_dev);
int adf_heartbeat_start(struct adf_accel_dev *accel_dev);
void adf_heartbeat_shutdown(struct adf_accel_dev *accel_dev);
int adf_heartbeat_ms_to_ticks(struct adf_accel_dev *accel_dev, unsigned int time_ms,
uint32_t *value);
int adf_heartbeat_save_cfg_param(struct adf_accel_dev *accel_dev,
unsigned int timer_ms);
void adf_heartbeat_status(struct adf_accel_dev *accel_dev,
enum adf_device_heartbeat_status *hb_status);
#else
static inline int adf_heartbeat_init(struct adf_accel_dev *accel_dev)
{
return 0;
}
static inline int adf_heartbeat_start(struct adf_accel_dev *accel_dev)
{
return 0;
}
static inline void adf_heartbeat_shutdown(struct adf_accel_dev *accel_dev)
{
}
static inline int adf_heartbeat_save_cfg_param(struct adf_accel_dev *accel_dev,
unsigned int timer_ms)
{
return 0;
}
#endif
#endif /* ADF_HEARTBEAT_H_ */
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