From e09b41010ba33a20a87472ee821fa407a5b8da36 Mon Sep 17 00:00:00 2001 From: José Pekkarinen Date: Mon, 11 Apr 2016 10:41:07 +0300 Subject: These changes are the raw update to linux-4.4.6-rt14. Kernel sources are taken from kernel.org, and rt patch from the rt wiki download page. MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit During the rebasing, the following patch collided: Force tick interrupt and get rid of softirq magic(I70131fb85). Collisions have been removed because its logic was found on the source already. Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769 Signed-off-by: José Pekkarinen --- kernel/net/bluetooth/hci_request.c | 137 ++++++++++++++++++++++++++++++++----- 1 file changed, 118 insertions(+), 19 deletions(-) (limited to 'kernel/net/bluetooth/hci_request.c') diff --git a/kernel/net/bluetooth/hci_request.c b/kernel/net/bluetooth/hci_request.c index d6025d6e6..02778c5bc 100644 --- a/kernel/net/bluetooth/hci_request.c +++ b/kernel/net/bluetooth/hci_request.c @@ -56,8 +56,8 @@ static int req_run(struct hci_request *req, hci_req_complete_t complete, return -ENODATA; skb = skb_peek_tail(&req->cmd_q); - bt_cb(skb)->req.complete = complete; - bt_cb(skb)->req.complete_skb = complete_skb; + bt_cb(skb)->hci.req_complete = complete; + bt_cb(skb)->hci.req_complete_skb = complete_skb; spin_lock_irqsave(&hdev->cmd_q.lock, flags); skb_queue_splice_tail(&req->cmd_q, &hdev->cmd_q); @@ -99,7 +99,7 @@ struct sk_buff *hci_prepare_cmd(struct hci_dev *hdev, u16 opcode, u32 plen, BT_DBG("skb len %d", skb->len); bt_cb(skb)->pkt_type = HCI_COMMAND_PKT; - bt_cb(skb)->opcode = opcode; + bt_cb(skb)->hci.opcode = opcode; return skb; } @@ -128,9 +128,9 @@ void hci_req_add_ev(struct hci_request *req, u16 opcode, u32 plen, } if (skb_queue_empty(&req->cmd_q)) - bt_cb(skb)->req.start = true; + bt_cb(skb)->hci.req_start = true; - bt_cb(skb)->req.event = event; + bt_cb(skb)->hci.req_event = event; skb_queue_tail(&req->cmd_q, skb); } @@ -175,21 +175,29 @@ static u8 update_white_list(struct hci_request *req) * command to remove it from the controller. */ list_for_each_entry(b, &hdev->le_white_list, list) { - struct hci_cp_le_del_from_white_list cp; + /* If the device is neither in pend_le_conns nor + * pend_le_reports then remove it from the whitelist. + */ + if (!hci_pend_le_action_lookup(&hdev->pend_le_conns, + &b->bdaddr, b->bdaddr_type) && + !hci_pend_le_action_lookup(&hdev->pend_le_reports, + &b->bdaddr, b->bdaddr_type)) { + struct hci_cp_le_del_from_white_list cp; + + cp.bdaddr_type = b->bdaddr_type; + bacpy(&cp.bdaddr, &b->bdaddr); - if (hci_pend_le_action_lookup(&hdev->pend_le_conns, - &b->bdaddr, b->bdaddr_type) || - hci_pend_le_action_lookup(&hdev->pend_le_reports, - &b->bdaddr, b->bdaddr_type)) { - white_list_entries++; + hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, + sizeof(cp), &cp); continue; } - cp.bdaddr_type = b->bdaddr_type; - bacpy(&cp.bdaddr, &b->bdaddr); + if (hci_find_irk_by_addr(hdev, &b->bdaddr, b->bdaddr_type)) { + /* White list can not be used with RPAs */ + return 0x00; + } - hci_req_add(req, HCI_OP_LE_DEL_FROM_WHITE_LIST, - sizeof(cp), &cp); + white_list_entries++; } /* Since all no longer valid white list entries have been @@ -317,7 +325,7 @@ static void set_random_addr(struct hci_request *req, bdaddr_t *rpa) * address be updated at the next cycle. */ if (hci_dev_test_flag(hdev, HCI_LE_ADV) || - hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT)) { + hci_lookup_le_connect(hdev)) { BT_DBG("Deferring random address update"); hci_dev_set_flag(hdev, HCI_RPA_EXPIRED); return; @@ -479,7 +487,6 @@ void hci_update_page_scan(struct hci_dev *hdev) void __hci_update_background_scan(struct hci_request *req) { struct hci_dev *hdev = req->hdev; - struct hci_conn *conn; if (!test_bit(HCI_UP, &hdev->flags) || test_bit(HCI_INIT, &hdev->flags) || @@ -529,8 +536,7 @@ void __hci_update_background_scan(struct hci_request *req) * since some controllers are not able to scan and connect at * the same time. */ - conn = hci_conn_hash_lookup_state(hdev, LE_LINK, BT_CONNECT); - if (conn) + if (hci_lookup_le_connect(hdev)) return; /* If controller is currently scanning, we stop it to ensure we @@ -566,3 +572,96 @@ void hci_update_background_scan(struct hci_dev *hdev) if (err && err != -ENODATA) BT_ERR("Failed to run HCI request: err %d", err); } + +void __hci_abort_conn(struct hci_request *req, struct hci_conn *conn, + u8 reason) +{ + switch (conn->state) { + case BT_CONNECTED: + case BT_CONFIG: + if (conn->type == AMP_LINK) { + struct hci_cp_disconn_phy_link cp; + + cp.phy_handle = HCI_PHY_HANDLE(conn->handle); + cp.reason = reason; + hci_req_add(req, HCI_OP_DISCONN_PHY_LINK, sizeof(cp), + &cp); + } else { + struct hci_cp_disconnect dc; + + dc.handle = cpu_to_le16(conn->handle); + dc.reason = reason; + hci_req_add(req, HCI_OP_DISCONNECT, sizeof(dc), &dc); + } + + conn->state = BT_DISCONN; + + break; + case BT_CONNECT: + if (conn->type == LE_LINK) { + if (test_bit(HCI_CONN_SCANNING, &conn->flags)) + break; + hci_req_add(req, HCI_OP_LE_CREATE_CONN_CANCEL, + 0, NULL); + } else if (conn->type == ACL_LINK) { + if (req->hdev->hci_ver < BLUETOOTH_VER_1_2) + break; + hci_req_add(req, HCI_OP_CREATE_CONN_CANCEL, + 6, &conn->dst); + } + break; + case BT_CONNECT2: + if (conn->type == ACL_LINK) { + struct hci_cp_reject_conn_req rej; + + bacpy(&rej.bdaddr, &conn->dst); + rej.reason = reason; + + hci_req_add(req, HCI_OP_REJECT_CONN_REQ, + sizeof(rej), &rej); + } else if (conn->type == SCO_LINK || conn->type == ESCO_LINK) { + struct hci_cp_reject_sync_conn_req rej; + + bacpy(&rej.bdaddr, &conn->dst); + + /* SCO rejection has its own limited set of + * allowed error values (0x0D-0x0F) which isn't + * compatible with most values passed to this + * function. To be safe hard-code one of the + * values that's suitable for SCO. + */ + rej.reason = HCI_ERROR_REMOTE_LOW_RESOURCES; + + hci_req_add(req, HCI_OP_REJECT_SYNC_CONN_REQ, + sizeof(rej), &rej); + } + break; + default: + conn->state = BT_CLOSED; + break; + } +} + +static void abort_conn_complete(struct hci_dev *hdev, u8 status, u16 opcode) +{ + if (status) + BT_DBG("Failed to abort connection: status 0x%2.2x", status); +} + +int hci_abort_conn(struct hci_conn *conn, u8 reason) +{ + struct hci_request req; + int err; + + hci_req_init(&req, conn->hdev); + + __hci_abort_conn(&req, conn, reason); + + err = hci_req_run(&req, abort_conn_complete); + if (err && err != -ENODATA) { + BT_ERR("Failed to run HCI request: err %d", err); + return err; + } + + return 0; +} -- cgit 1.2.3-korg