LXR linux/net/bluetooth/hci

   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#define hci_req_sync_lock(hdev)   mutex_lock(&hdev->req_lock)
  24#define hci_req_sync_unlock(hdev) mutex_unlock(&hdev->req_lock)
  25
  26struct hci_request {
  27        struct hci_dev          *hdev;
  28        struct sk_buff_head     cmd_q;
  29
  30        /* If something goes wrong when building the HCI request, the error
  31         * value is stored in this field.
  32         */
  33        int                     err;
  34};
  35
  36void hci_req_init(struct hci_request *req, struct hci_dev *hdev);
  37int hci_req_run(struct hci_request *req, hci_req_complete_t complete);
  38int hci_req_run_skb(struct hci_request *req, hci_req_complete_skb_t complete);
  39void hci_req_add(struct hci_request *req, u16 opcode, u32 plen,
  40                 const void *param);
  41void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen,
  42                    const void *param, u8 event);
  43void hci_req_cmd_complete(struct hci_dev *hdev, u16 opcode, u8 status,
  44                          hci_req_complete_t *req_complete,
  45                          hci_req_complete_skb_t *req_complete_skb);
  46
  47int hci_req_sync(struct hci_dev *hdev, int (*req)(struct hci_request *req,
  48                                                  unsigned long opt),
  49                 unsigned long opt, u32 timeout, u8 *hci_status);
  50int __hci_req_sync(struct hci_dev *hdev, int (*func)(struct hci_request *req,
  51                                                     unsigned long opt),
  52                   unsigned long opt, u32 timeout, u8 *hci_status);
  53void hci_req_sync_cancel(struct hci_dev *hdev, int err);
  54
  55struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen,
  56                                const void *param);
  57
  58int __hci_req_hci_power_on(struct hci_dev *hdev);
  59
  60void __hci_req_write_fast_connectable(struct hci_request *req, bool enable);
  61void __hci_req_update_name(struct hci_request *req);
  62void __hci_req_update_eir(struct hci_request *req);
  63
  64void hci_req_add_le_scan_disable(struct hci_request *req);
  65void hci_req_add_le_passive_scan(struct hci_request *req);
  66
  67void hci_req_reenable_advertising(struct hci_dev *hdev);
  68void __hci_req_enable_advertising(struct hci_request *req);
  69void __hci_req_disable_advertising(struct hci_request *req);
  70void __hci_req_update_adv_data(struct hci_request *req, u8 instance);
  71int hci_req_update_adv_data(struct hci_dev *hdev, u8 instance);
  72void __hci_req_update_scan_rsp_data(struct hci_request *req, u8 instance);
  73
  74int __hci_req_schedule_adv_instance(struct hci_request *req, u8 instance,
  75                                    bool force);
  76void hci_req_clear_adv_instance(struct hci_dev *hdev, struct hci_request *req,
  77                                u8 instance, bool force);
  78
  79void __hci_req_update_class(struct hci_request *req);
  80
  81/* Returns true if HCI commands were queued */
  82bool hci_req_stop_discovery(struct hci_request *req);
  83
  84static inline void hci_req_update_scan(struct hci_dev *hdev)
  85{
  86        queue_work(hdev->req_workqueue, &hdev->scan_update);
  87}
  88
  89void __hci_req_update_scan(struct hci_request *req);
  90
  91int hci_update_random_address(struct hci_request *req, bool require_privacy,
  92                              bool use_rpa, u8 *own_addr_type);
  93
  94int hci_abort_conn(struct hci_conn *conn, u8 reason);
  95void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn,
  96                      u8 reason);
  97
  98static inline void hci_update_background_scan(struct hci_dev *hdev)
  99{
 100        queue_work(hdev->req_workqueue, &hdev->bg_scan_update);
 101}
 102
 103void hci_request_setup(struct hci_dev *hdev);
 104void hci_request_cancel_all(struct hci_dev *hdev);
 105