drivers/char/diag/diag_memorydevice.h

/* Copyright (c) 2014-2015, 2018 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 DIAG_MEMORYDEVICE_H
#define DIAG_MEMORYDEVICE_H

#define DIAG_MD_LOCAL		0
#define DIAG_MD_LOCAL_LAST	1
#define DIAG_MD_BRIDGE_BASE	DIAG_MD_LOCAL_LAST
#define DIAG_MD_MDM		(DIAG_MD_BRIDGE_BASE)
#define DIAG_MD_MDM2		(DIAG_MD_BRIDGE_BASE + 1)
#define DIAG_MD_SMUX		(DIAG_MD_BRIDGE_BASE + 2)
#define DIAG_MD_BRIDGE_LAST	(DIAG_MD_BRIDGE_BASE + 3)

#ifndef CONFIG_DIAGFWD_BRIDGE_CODE
#define NUM_DIAG_MD_DEV		DIAG_MD_LOCAL_LAST
#else
#define NUM_DIAG_MD_DEV		DIAG_MD_BRIDGE_LAST
#endif

struct diag_buf_tbl_t {
	unsigned char *buf;
	int len;
	int ctx;
};

struct diag_md_info {
	int id;
	int ctx;
	int mempool;
	int num_tbl_entries;
	int md_info_inited;
	spinlock_t lock;
	struct diag_buf_tbl_t *tbl;
	struct diag_mux_ops *ops;
};

extern struct diag_md_info diag_md[NUM_DIAG_MD_DEV];

int diag_md_init(void);
int diag_md_mdm_init(void);
void diag_md_exit(void);
void diag_md_mdm_exit(void);
void diag_md_open_all(void);
void diag_md_close_all(void);
int diag_md_register(int id, int ctx, struct diag_mux_ops *ops);
int diag_md_close_peripheral(int id, uint8_t peripheral);
int diag_md_write(int id, unsigned char *buf, int len, int ctx);
int diag_md_copy_to_user(char __user *buf, int *pret, size_t buf_size,
			 struct diag_md_session_t *info);
#endif