1/*
 2 *
 3 * Intel Management Engine Interface (Intel MEI) Linux driver
 4 * Copyright (c) 2003-2012, Intel Corporation.
 5 *
 6 * This program is free software; you can redistribute it and/or modify it
 7 * under the terms and conditions of the GNU General Public License,
 8 * version 2, as published by the Free Software Foundation.
 9 *
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
13 * more details.
14 *
15 */
16
17
18
19#ifndef _MEI_INTERFACE_H_
20#define _MEI_INTERFACE_H_
21
22#include <linux/mei.h>
23#include "mei_dev.h"
24
25
26#define AMT_WD_DEFAULT_TIMEOUT 120	/* seconds */
27#define AMT_WD_MIN_TIMEOUT 120	/* seconds */
28#define AMT_WD_MAX_TIMEOUT 65535	/* seconds */
29
30#define MEI_WATCHDOG_DATA_SIZE         16
31#define MEI_START_WD_DATA_SIZE         20
32#define MEI_WD_PARAMS_SIZE             4
33
34
35void mei_read_slots(struct mei_device *dev,
36		     unsigned char *buffer,
37		     unsigned long buffer_length);
38
39int mei_write_message(struct mei_device *dev,
40			     struct mei_msg_hdr *header,
41			     unsigned char *write_buffer,
42			     unsigned long write_length);
43
44int mei_host_buffer_is_empty(struct mei_device *dev);
45
46int mei_count_full_read_slots(struct mei_device *dev);
47
48int mei_count_empty_write_slots(struct mei_device *dev);
49
50int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl);
51
52int mei_wd_send(struct mei_device *dev);
53int mei_wd_stop(struct mei_device *dev, bool preserve);
54int mei_wd_host_init(struct mei_device *dev);
55/*
56 * mei_watchdog_register  - Registering watchdog interface
57 *   once we got connection to the WD Client
58 * @dev - mei device
59 */
60void mei_watchdog_register(struct mei_device *dev);
61/*
62 * mei_watchdog_unregister  - Unregistering watchdog interface
63 * @dev - mei device
64 */
65void mei_watchdog_unregister(struct mei_device *dev);
66
67int mei_flow_ctrl_reduce(struct mei_device *dev, struct mei_cl *cl);
68
69int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl);
70
71int mei_disconnect(struct mei_device *dev, struct mei_cl *cl);
72int mei_other_client_is_connecting(struct mei_device *dev, struct mei_cl *cl);
73int mei_connect(struct mei_device *dev, struct mei_cl *cl);
74
75#endif /* _MEI_INTERFACE_H_ */