diff options
Diffstat (limited to 'net/bluetooth/hci_request.c')
-rw-r--r-- | net/bluetooth/hci_request.c | 237 |
1 files changed, 0 insertions, 237 deletions
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index 46fa9c3bdb3e..8aa6e1840c9a 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -492,9 +492,6 @@ void hci_req_add_le_scan_disable(struct hci_request *req, bool rpa_le_conn) return; } - if (hdev->suspended) - set_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks); - if (use_ext_scan(hdev)) { struct hci_cp_le_set_ext_scan_enable cp; @@ -868,8 +865,6 @@ void hci_req_add_le_passive_scan(struct hci_request *req) if (hdev->suspended) { window = hdev->le_scan_window_suspend; interval = hdev->le_scan_int_suspend; - - set_bit(SUSPEND_SCAN_ENABLE, hdev->suspend_tasks); } else if (hci_is_le_conn_scanning(hdev)) { window = hdev->le_scan_window_connect; interval = hdev->le_scan_int_connect; @@ -902,59 +897,6 @@ void hci_req_add_le_passive_scan(struct hci_request *req) addr_resolv); } -static void hci_req_clear_event_filter(struct hci_request *req) -{ - struct hci_cp_set_event_filter f; - - if (!hci_dev_test_flag(req->hdev, HCI_BREDR_ENABLED)) - return; - - if (hci_dev_test_flag(req->hdev, HCI_EVENT_FILTER_CONFIGURED)) { - memset(&f, 0, sizeof(f)); - f.flt_type = HCI_FLT_CLEAR_ALL; - hci_req_add(req, HCI_OP_SET_EVENT_FLT, 1, &f); - } -} - -static void hci_req_set_event_filter(struct hci_request *req) -{ - struct bdaddr_list_with_flags *b; - struct hci_cp_set_event_filter f; - struct hci_dev *hdev = req->hdev; - u8 scan = SCAN_DISABLED; - bool scanning = test_bit(HCI_PSCAN, &hdev->flags); - - if (!hci_dev_test_flag(hdev, HCI_BREDR_ENABLED)) - return; - - /* Always clear event filter when starting */ - hci_req_clear_event_filter(req); - - list_for_each_entry(b, &hdev->accept_list, list) { - if (!hci_conn_test_flag(HCI_CONN_FLAG_REMOTE_WAKEUP, - b->current_flags)) - continue; - - memset(&f, 0, sizeof(f)); - bacpy(&f.addr_conn_flt.bdaddr, &b->bdaddr); - f.flt_type = HCI_FLT_CONN_SETUP; - f.cond_type = HCI_CONN_SETUP_ALLOW_BDADDR; - f.addr_conn_flt.auto_accept = HCI_CONN_SETUP_AUTO_ON; - - bt_dev_dbg(hdev, "Adding event filters for %pMR", &b->bdaddr); - hci_req_add(req, HCI_OP_SET_EVENT_FLT, sizeof(f), &f); - scan = SCAN_PAGE; - } - - if (scan && !scanning) { - set_bit(SUSPEND_SCAN_ENABLE, hdev->suspend_tasks); - hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); - } else if (!scan && scanning) { - set_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks); - hci_req_add(req, HCI_OP_WRITE_SCAN_ENABLE, 1, &scan); - } -} - static void cancel_adv_timeout(struct hci_dev *hdev) { if (hdev->adv_instance_timeout) { @@ -1013,185 +955,6 @@ int hci_req_resume_adv_instances(struct hci_dev *hdev) return hci_req_run(&req, NULL); } -static void suspend_req_complete(struct hci_dev *hdev, u8 status, u16 opcode) -{ - bt_dev_dbg(hdev, "Request complete opcode=0x%x, status=0x%x", opcode, - status); - if (test_bit(SUSPEND_SCAN_ENABLE, hdev->suspend_tasks) || - test_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks)) { - clear_bit(SUSPEND_SCAN_ENABLE, hdev->suspend_tasks); - clear_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks); - wake_up(&hdev->suspend_wait_q); - } - - if (test_bit(SUSPEND_SET_ADV_FILTER, hdev->suspend_tasks)) { - clear_bit(SUSPEND_SET_ADV_FILTER, hdev->suspend_tasks); - wake_up(&hdev->suspend_wait_q); - } -} - -static void hci_req_prepare_adv_monitor_suspend(struct hci_request *req, - bool suspending) -{ - struct hci_dev *hdev = req->hdev; - - switch (hci_get_adv_monitor_offload_ext(hdev)) { - case HCI_ADV_MONITOR_EXT_MSFT: - if (suspending) - msft_suspend(hdev); - else - msft_resume(hdev); - break; - default: - return; - } - - /* No need to block when enabling since it's on resume path */ - if (hdev->suspended && suspending) - set_bit(SUSPEND_SET_ADV_FILTER, hdev->suspend_tasks); -} - -/* Call with hci_dev_lock */ -void hci_req_prepare_suspend(struct hci_dev *hdev, enum suspended_state next) -{ - int old_state; - struct hci_conn *conn; - struct hci_request req; - u8 page_scan; - int disconnect_counter; - - if (next == hdev->suspend_state) { - bt_dev_dbg(hdev, "Same state before and after: %d", next); - goto done; - } - - hdev->suspend_state = next; - hci_req_init(&req, hdev); - - if (next == BT_SUSPEND_DISCONNECT) { - /* Mark device as suspended */ - hdev->suspended = true; - - /* Pause discovery if not already stopped */ - old_state = hdev->discovery.state; - if (old_state != DISCOVERY_STOPPED) { - set_bit(SUSPEND_PAUSE_DISCOVERY, hdev->suspend_tasks); - hci_discovery_set_state(hdev, DISCOVERY_STOPPING); - queue_work(hdev->req_workqueue, &hdev->discov_update); - } - - hdev->discovery_paused = true; - hdev->discovery_old_state = old_state; - - /* Stop directed advertising */ - old_state = hci_dev_test_flag(hdev, HCI_ADVERTISING); - if (old_state) { - set_bit(SUSPEND_PAUSE_ADVERTISING, hdev->suspend_tasks); - cancel_delayed_work(&hdev->discov_off); - queue_delayed_work(hdev->req_workqueue, - &hdev->discov_off, 0); - } - - /* Pause other advertisements */ - if (hdev->adv_instance_cnt) - __hci_req_pause_adv_instances(&req); - - hdev->advertising_paused = true; - hdev->advertising_old_state = old_state; - - /* Disable page scan if enabled */ - if (test_bit(HCI_PSCAN, &hdev->flags)) { - page_scan = SCAN_DISABLED; - hci_req_add(&req, HCI_OP_WRITE_SCAN_ENABLE, 1, - &page_scan); - set_bit(SUSPEND_SCAN_DISABLE, hdev->suspend_tasks); - } - - /* Disable LE passive scan if enabled */ - if (hci_dev_test_flag(hdev, HCI_LE_SCAN)) { - cancel_interleave_scan(hdev); - hci_req_add_le_scan_disable(&req, false); - } - - /* Disable advertisement filters */ - hci_req_prepare_adv_monitor_suspend(&req, true); - - /* Prevent disconnects from causing scanning to be re-enabled */ - hdev->scanning_paused = true; - - /* Run commands before disconnecting */ - hci_req_run(&req, suspend_req_complete); - - disconnect_counter = 0; - /* Soft disconnect everything (power off) */ - list_for_each_entry(conn, &hdev->conn_hash.list, list) { - hci_disconnect(conn, HCI_ERROR_REMOTE_POWER_OFF); - disconnect_counter++; - } - - if (disconnect_counter > 0) { - bt_dev_dbg(hdev, - "Had %d disconnects. Will wait on them", - disconnect_counter); - set_bit(SUSPEND_DISCONNECTING, hdev->suspend_tasks); - } - } else if (next == BT_SUSPEND_CONFIGURE_WAKE) { - /* Unpause to take care of updating scanning params */ - hdev->scanning_paused = false; - /* Enable event filter for paired devices */ - hci_req_set_event_filter(&req); - /* Enable passive scan at lower duty cycle */ - __hci_update_background_scan(&req); - /* Pause scan changes again. */ - hdev->scanning_paused = true; - hci_req_run(&req, suspend_req_complete); - } else { - hdev->suspended = false; - hdev->scanning_paused = false; - - /* Clear any event filters and restore scan state */ - hci_req_clear_event_filter(&req); - __hci_req_update_scan(&req); - - /* Reset passive/background scanning to normal */ - __hci_update_background_scan(&req); - /* Enable all of the advertisement filters */ - hci_req_prepare_adv_monitor_suspend(&req, false); - - /* Unpause directed advertising */ - hdev->advertising_paused = false; - if (hdev->advertising_old_state) { - set_bit(SUSPEND_UNPAUSE_ADVERTISING, - hdev->suspend_tasks); - hci_dev_set_flag(hdev, HCI_ADVERTISING); - queue_work(hdev->req_workqueue, - &hdev->discoverable_update); - hdev->advertising_old_state = 0; - } - - /* Resume other advertisements */ - if (hdev->adv_instance_cnt) - __hci_req_resume_adv_instances(&req); - - /* Unpause discovery */ - hdev->discovery_paused = false; - if (hdev->discovery_old_state != DISCOVERY_STOPPED && - hdev->discovery_old_state != DISCOVERY_STOPPING) { - set_bit(SUSPEND_UNPAUSE_DISCOVERY, hdev->suspend_tasks); - hci_discovery_set_state(hdev, DISCOVERY_STARTING); - queue_work(hdev->req_workqueue, &hdev->discov_update); - } - - hci_req_run(&req, suspend_req_complete); - } - - hdev->suspend_state = next; - -done: - clear_bit(SUSPEND_PREPARE_NOTIFIER, hdev->suspend_tasks); - wake_up(&hdev->suspend_wait_q); -} - static bool adv_cur_instance_is_scannable(struct hci_dev *hdev) { return hci_adv_instance_is_scannable(hdev, hdev->cur_adv_instance); |