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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_DONE 0
26#define HCI_REQ_PEND 1
27#define HCI_REQ_CANCELED 2
28
29#define hci_req_sync_lock(hdev) mutex_lock(&hdev->req_lock)
30#define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)
31
32#define HCI_REQ_DONE 0
33#define HCI_REQ_PEND 1
34#define HCI_REQ_CANCELED 2
35
36struct hci_request {
37 struct hci_dev *hdev;
38 struct sk_buff_head cmd_q;
39
40 /* If something goes wrong when building the HCI request, the error
41 * value is stored in this field.
42 */
43 int err;
44};
45
46void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
47void hci_req_purge(struct hci_request *req);
48bool hci_req_status_pend(struct hci_dev *hdev);
49int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
50int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
51void hci_req_sync_complete(struct hci_dev *hdev, u8 result, u16 opcode,
52 struct sk_buff *skb);
53void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
54 const void *param);
55void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
56 const void *param, u8 event);
57void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
58 hci_req_complete_t *req_complete,
59 hci_req_complete_skb_t *req_complete_skb);
60
61int hci_req_sync(struct hci_dev *hdev, int (*req)(struct hci_request *req,
62 unsigned long opt),
63 unsigned long opt, u32 timeout, u8 *hci_status);
64int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req,
65 unsigned long opt),
66 unsigned long opt, u32 timeout, u8 *hci_status);
67
68struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen,
69 const void *param);
70
71void hci_req_add_le_scan_disable(struct hci_request *req, bool rpa_le_conn);
72void hci_req_add_le_passive_scan(struct hci_request *req);
73
74void hci_request_setup(struct hci_dev *hdev);
75void hci_request_cancel_all(struct hci_dev *hdev);
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);
40bool hci_req_status_pend(struct hci_dev *hdev);
41int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
42int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
43void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
44 const void *param);
45void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
46 const void *param, u8 event);
47void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
48 hci_req_complete_t *req_complete,
49 hci_req_complete_skb_t *req_complete_skb);
50
51int hci_req_sync(struct hci_dev *hdev, int (*req)(struct hci_request *req,
52 unsigned long opt),
53 unsigned long opt, u32 timeout, u8 *hci_status);
54int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req,
55 unsigned long opt),
56 unsigned long opt, u32 timeout, u8 *hci_status);
57void hci_req_sync_cancel(struct hci_dev *hdev, int err);
58
59struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen,
60 const void *param);
61
62int __hci_req_hci_power_on(struct hci_dev *hdev);
63
64void __hci_req_write_fast_connectable(struct hci_request *req, bool enable);
65void __hci_req_update_name(struct hci_request *req);
66void __hci_req_update_eir(struct hci_request *req);
67
68void hci_req_add_le_scan_disable(struct hci_request *req, bool rpa_le_conn);
69void hci_req_add_le_passive_scan(struct hci_request *req);
70
71void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next);
72
73void hci_req_disable_address_resolution(struct hci_dev *hdev);
74void __hci_req_pause_adv_instances(struct hci_request *req);
75int hci_req_resume_adv_instances(struct hci_dev *hdev);
76void hci_req_reenable_advertising(struct hci_dev *hdev);
77void __hci_req_enable_advertising(struct hci_request *req);
78void __hci_req_disable_advertising(struct hci_request *req);
79void __hci_req_update_adv_data(struct hci_request *req, u8 instance);
80int hci_req_update_adv_data(struct hci_dev *hdev, u8 instance);
81void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance);
82
83int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
84 bool force);
85void hci_req_clear_adv_instance(struct hci_dev *hdev, struct sock *sk,
86 struct hci_request *req, u8 instance,
87 bool force);
88
89int __hci_req_setup_ext_adv_instance(struct hci_request *req, u8 instance);
90int __hci_req_start_ext_adv(struct hci_request *req, u8 instance);
91int __hci_req_enable_ext_advertising(struct hci_request *req, u8 instance);
92int __hci_req_disable_ext_adv_instance(struct hci_request *req, u8 instance);
93int __hci_req_remove_ext_adv_instance(struct hci_request *req, u8 instance);
94void __hci_req_clear_ext_adv_sets(struct hci_request *req);
95int hci_get_random_address(struct hci_dev *hdev, bool require_privacy,
96 bool use_rpa, struct adv_info *adv_instance,
97 u8 *own_addr_type, bdaddr_t *rand_addr);
98
99void __hci_req_update_class(struct hci_request *req);
100
101/* Returns true if HCI commands were queued */
102bool hci_req_stop_discovery(struct hci_request *req);
103
104static inline void hci_req_update_scan(struct hci_dev *hdev)
105{
106 queue_work(hdev->req_workqueue, &hdev->scan_update);
107}
108
109void __hci_req_update_scan(struct hci_request *req);
110
111int hci_update_random_address(struct hci_request *req, bool require_privacy,
112 bool use_rpa, u8 *own_addr_type);
113
114int hci_abort_conn(struct hci_conn *conn, u8 reason);
115void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn,
116 u8 reason);
117
118static inline void hci_update_background_scan(struct hci_dev *hdev)
119{
120 queue_work(hdev->req_workqueue, &hdev->bg_scan_update);
121}
122
123void hci_request_setup(struct hci_dev *hdev);
124void hci_request_cancel_all(struct hci_dev *hdev);
125
126u8 append_local_name(struct hci_dev *hdev, u8 *ptr, u8 ad_len);
127
128static inline u16 eir_append_data(u8 *eir, u16 eir_len, u8 type,
129 u8 *data, u8 data_len)
130{
131 eir[eir_len++] = sizeof(type) + data_len;
132 eir[eir_len++] = type;
133 memcpy(&eir[eir_len], data, data_len);
134 eir_len += data_len;
135
136 return eir_len;
137}
138
139static inline u16 eir_append_le16(u8 *eir, u16 eir_len, u8 type, u16 data)
140{
141 eir[eir_len++] = sizeof(type) + sizeof(data);
142 eir[eir_len++] = type;
143 put_unaligned_le16(data, &eir[eir_len]);
144 eir_len += sizeof(data);
145
146 return eir_len;
147}