linux/drivers/hwtracing/stm/stm.h

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * System Trace Module (STM) infrastructure
 * Copyright (c) 2014, Intel Corporation.
 *
 * STM class implements generic infrastructure for  System Trace Module devices
 * as defined in MIPI STPv2 specification.
 */

#ifndef _STM_STM_H_
#define _STM_STM_H_

#include <linux/configfs.h>

struct stp_policy;
struct stp_policy_node;
struct stm_protocol_driver;

int stp_configfs_init(void);
void stp_configfs_exit(void);

void *stp_policy_node_priv(struct stp_policy_node *pn);

struct stp_master { … };

struct stm_device { … };

#define to_stm_device(_d) …

struct stp_policy_node *
stp_policy_node_lookup(struct stm_device *stm, char *s);
void stp_policy_node_put(struct stp_policy_node *policy_node);
void stp_policy_unbind(struct stp_policy *policy);

void stp_policy_node_get_ranges(struct stp_policy_node *policy_node,
				unsigned int *mstart, unsigned int *mend,
				unsigned int *cstart, unsigned int *cend);

const struct config_item_type *
get_policy_node_type(struct configfs_attribute **attrs);

struct stm_output { … };

struct stm_file { … };

struct stm_device *stm_find_device(const char *name);
void stm_put_device(struct stm_device *stm);

struct stm_source_device { … };

#define to_stm_source_device(_d) …

void *to_pdrv_policy_node(struct config_item *item);

struct stm_protocol_driver { … };

int stm_register_protocol(const struct stm_protocol_driver *pdrv);
void stm_unregister_protocol(const struct stm_protocol_driver *pdrv);
int stm_lookup_protocol(const char *name,
			const struct stm_protocol_driver **pdrv,
			const struct config_item_type **type);
void stm_put_protocol(const struct stm_protocol_driver *pdrv);
ssize_t stm_data_write(struct stm_data *data, unsigned int m,
		       unsigned int c, bool ts_first, const void *buf,
		       size_t count);

#endif /* _STM_STM_H_ */