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review.trustedfirmware.org / hafnium / third_party / linux.git / 3a0ad55d848b50499b68d7141d4eca997fce28ef / . / net / bluetooth / hci_request.h
blob: 692cc8b133682ab749b73cf34fe0f5da4c6276b4 [file] [log] [blame]
Andrew Scullb4b6d4a2019-01-02 15:54:55 +0000[diff] [blame]1/*
2 BlueZ - Bluetooth protocol stack for Linux
3 Copyright (C) 2014 Intel Corporation
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License version 2 as
7 published by the Free Software Foundation;
8
9 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
10 OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
11 FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
12 IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
13 CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
14 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
15 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
16 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17
18 ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
19 COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
20 SOFTWARE IS DISCLAIMED.
21*/
22
23#include <asm/unaligned.h>
24
25#define hci_req_sync_lock(hdev) mutex_lock(&hdev->req_lock)
26#define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)
27
28struct hci_request {
29 struct hci_dev *hdev;
30 struct sk_buff_head cmd_q;
31
32 /* If something goes wrong when building the HCI request, the error
33 * value is stored in this field.
34 */
35 int err;
36};
37
38void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
39void hci_req_purge(struct hci_request *req);
40int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
41int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
42void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
43 const void *param);
44void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
45 const void *param, u8 event);
46void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
47 hci_req_complete_t *req_complete,
48 hci_req_complete_skb_t *req_complete_skb);
49
50int hci_req_sync(struct hci_dev *hdev, int (*req)(struct hci_request *req,
51 unsigned long opt),
52 unsigned long opt, u32 timeout, u8 *hci_status);
53int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req,
54 unsigned long opt),
55 unsigned long opt, u32 timeout, u8 *hci_status);
56void hci_req_sync_cancel(struct hci_dev *hdev, int err);
57
58struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen,
59 const void *param);
60
61int __hci_req_hci_power_on(struct hci_dev *hdev);
62
63void __hci_req_write_fast_connectable(struct hci_request *req, bool enable);
64void __hci_req_update_name(struct hci_request *req);
65void __hci_req_update_eir(struct hci_request *req);
66
67void hci_req_add_le_scan_disable(struct hci_request *req);
68void hci_req_add_le_passive_scan(struct hci_request *req);
69
70void hci_req_reenable_advertising(struct hci_dev *hdev);
71void __hci_req_enable_advertising(struct hci_request *req);
72void __hci_req_disable_advertising(struct hci_request *req);
73void __hci_req_update_adv_data(struct hci_request *req, u8 instance);
74int hci_req_update_adv_data(struct hci_dev *hdev, u8 instance);
75void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance);
76
77int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
78 bool force);
79void hci_req_clear_adv_instance(struct hci_dev *hdev, struct sock *sk,
80 struct hci_request *req, u8 instance,
81 bool force);
82
83int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance);
84int __hci_req_start_ext_adv(struct hci_request *req, u8 instance);
85void __hci_req_enable_ext_advertising(struct hci_request *req);
86void __hci_req_clear_ext_adv_sets(struct hci_request *req);
87int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
88 bool use_rpa, struct adv_info *adv_instance,
89 u8 *own_addr_type, bdaddr_t *rand_addr);
90
91void __hci_req_update_class(struct hci_request *req);
92
93/* Returns true if HCI commands were queued */
94bool hci_req_stop_discovery(struct hci_request *req);
95
96static inline void hci_req_update_scan(struct hci_dev *hdev)
97{
98 queue_work(hdev->req_workqueue, &hdev->scan_update);
99}
100
101void __hci_req_update_scan(struct hci_request *req);
102
103int hci_update_random_address(struct hci_request *req, bool require_privacy,
104 bool use_rpa, u8 *own_addr_type);
105
106int hci_abort_conn(struct hci_conn *conn, u8 reason);
107void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn,
108 u8 reason);
109
110static inline void hci_update_background_scan(struct hci_dev *hdev)
111{
112 queue_work(hdev->req_workqueue, &hdev->bg_scan_update);
113}
114
115void hci_request_setup(struct hci_dev *hdev);
116void hci_request_cancel_all(struct hci_dev *hdev);
117
118u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len);
119
120static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
121 u8 *data, u8 data_len)
122{
123 eir[eir_len++] = sizeof(type) + data_len;
124 eir[eir_len++] = type;
125 memcpy(&eir[eir_len], data, data_len);
126 eir_len += data_len;
127
128 return eir_len;
129}
130
131static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
132{
133 eir[eir_len++] = sizeof(type) + sizeof(data);
134 eir[eir_len++] = type;
135 put_unaligned_le16(data, &eir[eir_len]);
136 eir_len += sizeof(data);
137
138 return eir_len;
139}