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review.evervolv.com / android_kernel_oneplus_msm8996 / 726917f052e62d8012f63a763884957610399afb / . / drivers / misc / mei / interface.h
blob: cd9b778e8dc5886d81148e294999bf070829faf6 [file] [log] [blame]
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]1/*
2 *
3 * Intel Management Engine Interface (Intel MEI) Linux driver
Tomas Winkler733ba912012-02-09 19:25:53 +0200[diff] [blame]4 * Copyright (c) 2003-2012, Intel Corporation.
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]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
Tomas Winkler4f3afe12012-05-09 16:38:59 +0300[diff] [blame]22#include <linux/mei.h>
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]23#include "mei_dev.h"
24
25
Oren Weil9ce178e2011-09-07 09:03:09 +0300[diff] [blame]26#define AMT_WD_DEFAULT_TIMEOUT 120 /* seconds */
27#define AMT_WD_MIN_TIMEOUT 120 /* seconds */
28#define AMT_WD_MAX_TIMEOUT 65535 /* seconds */
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]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,
Tomas Winkleredf1eed2012-02-09 19:25:54 +0200[diff] [blame]36 unsigned char *buffer,
37 unsigned long buffer_length);
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]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
Tomas Winkler726917f2012-06-25 23:46:28 +0300[diff] [blame^]44bool mei_hbuf_is_empty(struct mei_device *dev);
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]45
Tomas Winkler726917f2012-06-25 23:46:28 +0300[diff] [blame^]46int mei_hbuf_empty_slots(struct mei_device *dev);
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]47
Tomas Winkler24aadc82012-06-25 23:46:27 +0300[diff] [blame]48static inline size_t mei_hbuf_max_data(const struct mei_device *dev)
49{
50 return dev->hbuf_depth * sizeof(u32) - sizeof(struct mei_msg_hdr);
51}
52
Tomas Winkler726917f2012-06-25 23:46:28 +0300[diff] [blame^]53int mei_count_full_read_slots(struct mei_device *dev);
54
55
56int mei_flow_ctrl_creds(struct mei_device *dev, struct mei_cl *cl);
57
58
Tomas Winkler24aadc82012-06-25 23:46:27 +0300[diff] [blame]59
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]60int mei_wd_send(struct mei_device *dev);
61int mei_wd_stop(struct mei_device *dev, bool preserve);
Tomas Winkler9487eb02012-04-03 23:34:58 +0300[diff] [blame]62int mei_wd_host_init(struct mei_device *dev);
Tomas Winkler70cd5332011-12-22 18:50:50 +0200[diff] [blame]63/*
64 * mei_watchdog_register - Registering watchdog interface
65 * once we got connection to the WD Client
66 * @dev - mei device
67 */
68void mei_watchdog_register(struct mei_device *dev);
69/*
Justin P. Mattock5f9092f2012-03-12 07:18:09 -0700[diff] [blame]70 * mei_watchdog_unregister - Unregistering watchdog interface
Tomas Winkler70cd5332011-12-22 18:50:50 +0200[diff] [blame]71 * @dev - mei device
72 */
73void mei_watchdog_unregister(struct mei_device *dev);
Oren Weil3ce72722011-05-15 13:43:43 +0300[diff] [blame]74
75int mei_flow_ctrl_reduce(struct mei_device *dev, struct mei_cl *cl);
76
77int mei_send_flow_control(struct mei_device *dev, struct mei_cl *cl);
78
79int mei_disconnect(struct mei_device *dev, struct mei_cl *cl);
80int mei_other_client_is_connecting(struct mei_device *dev, struct mei_cl *cl);
81int mei_connect(struct mei_device *dev, struct mei_cl *cl);
82
83#endif /* _MEI_INTERFACE_H_ */