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90e0b5f1 TW |
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 | #ifndef _MEI_CLIENT_H_ | |
18 | #define _MEI_CLIENT_H_ | |
19 | ||
20 | #include <linux/types.h> | |
21 | #include <linux/watchdog.h> | |
22 | #include <linux/poll.h> | |
23 | #include <linux/mei.h> | |
24 | ||
25 | #include "mei_dev.h" | |
26 | ||
27 | int mei_me_cl_by_uuid(const struct mei_device *dev, const uuid_le *cuuid); | |
28 | int mei_me_cl_by_id(struct mei_device *dev, u8 client_id); | |
29 | ||
30 | /* | |
31 | * MEI IO Functions | |
32 | */ | |
33 | struct mei_cl_cb *mei_io_cb_init(struct mei_cl *cl, struct file *fp); | |
34 | void mei_io_cb_free(struct mei_cl_cb *priv_cb); | |
35 | int mei_io_cb_alloc_req_buf(struct mei_cl_cb *cb, size_t length); | |
36 | int mei_io_cb_alloc_resp_buf(struct mei_cl_cb *cb, size_t length); | |
37 | ||
38 | ||
39 | /** | |
40 | * mei_io_list_init - Sets up a queue list. | |
41 | * | |
42 | * @list: An instance cl callback structure | |
43 | */ | |
44 | static inline void mei_io_list_init(struct mei_cl_cb *list) | |
45 | { | |
46 | INIT_LIST_HEAD(&list->list); | |
47 | } | |
48 | void mei_io_list_flush(struct mei_cl_cb *list, struct mei_cl *cl); | |
49 | ||
50 | /* | |
51 | * MEI Host Client Functions | |
52 | */ | |
53 | ||
54 | struct mei_cl *mei_cl_allocate(struct mei_device *dev); | |
55 | void mei_cl_init(struct mei_cl *cl, struct mei_device *dev); | |
56 | ||
57 | ||
781d0d89 | 58 | int mei_cl_link(struct mei_cl *cl, int id); |
90e0b5f1 TW |
59 | int mei_cl_unlink(struct mei_cl *cl); |
60 | ||
61 | int mei_cl_flush_queues(struct mei_cl *cl); | |
62 | struct mei_cl_cb *mei_cl_find_read_cb(struct mei_cl *cl); | |
63 | ||
64 | /** | |
65 | * mei_cl_cmp_id - tells if file private data have same id | |
66 | * | |
67 | * @fe1: private data of 1. file object | |
68 | * @fe2: private data of 2. file object | |
69 | * | |
70 | * returns true - if ids are the same and not NULL | |
71 | */ | |
72 | static inline bool mei_cl_cmp_id(const struct mei_cl *cl1, | |
73 | const struct mei_cl *cl2) | |
74 | { | |
75 | return cl1 && cl2 && | |
76 | (cl1->host_client_id == cl2->host_client_id) && | |
77 | (cl1->me_client_id == cl2->me_client_id); | |
78 | } | |
79 | ||
80 | ||
81 | int mei_cl_flow_ctrl_creds(struct mei_cl *cl); | |
82 | ||
83 | int mei_cl_flow_ctrl_reduce(struct mei_cl *cl); | |
84 | /* | |
85 | * MEI input output function prototype | |
86 | */ | |
b950ac1d TW |
87 | static inline bool mei_cl_is_connected(struct mei_cl *cl) |
88 | { | |
89 | return (cl->dev && | |
90 | cl->dev->dev_state == MEI_DEV_ENABLED && | |
91 | cl->state == MEI_FILE_CONNECTED); | |
92 | } | |
e2b31644 TW |
93 | static inline bool mei_cl_is_transitioning(struct mei_cl *cl) |
94 | { | |
95 | return (MEI_FILE_INITIALIZING == cl->state || | |
96 | MEI_FILE_DISCONNECTED == cl->state || | |
97 | MEI_FILE_DISCONNECTING == cl->state); | |
98 | } | |
b950ac1d | 99 | |
90e0b5f1 TW |
100 | bool mei_cl_is_other_connecting(struct mei_cl *cl); |
101 | int mei_cl_disconnect(struct mei_cl *cl); | |
90e0b5f1 | 102 | int mei_cl_connect(struct mei_cl *cl, struct file *file); |
fcb136e1 | 103 | int mei_cl_read_start(struct mei_cl *cl, size_t length); |
4234a6de | 104 | int mei_cl_write(struct mei_cl *cl, struct mei_cl_cb *cb, bool blocking); |
21767546 TW |
105 | int mei_cl_irq_write_complete(struct mei_cl *cl, struct mei_cl_cb *cb, |
106 | s32 *slots, struct mei_cl_cb *cmpl_list); | |
107 | ||
db086fa9 | 108 | void mei_cl_complete(struct mei_cl *cl, struct mei_cl_cb *cb); |
90e0b5f1 TW |
109 | |
110 | void mei_host_client_init(struct work_struct *work); | |
111 | ||
112 | ||
4234a6de | 113 | |
074b4c01 | 114 | void mei_cl_all_disconnect(struct mei_device *dev); |
5290801c | 115 | void mei_cl_all_wakeup(struct mei_device *dev); |
074b4c01 TW |
116 | void mei_cl_all_write_clear(struct mei_device *dev); |
117 | ||
90e0b5f1 | 118 | #endif /* _MEI_CLIENT_H_ */ |