![Marcel Holtmann](/assets/img/avatar_default.png)
To better support and handle eSCO links in the future a bunch of constants needs to be added and some basic routines need to be updated. This is the initial step. Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
1339 lines
31 KiB
C
1339 lines
31 KiB
C
/*
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BlueZ - Bluetooth protocol stack for Linux
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Copyright (C) 2000-2001 Qualcomm Incorporated
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Written 2000,2001 by Maxim Krasnyansky <maxk@qualcomm.com>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License version 2 as
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published by the Free Software Foundation;
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
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OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
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IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
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CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
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WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
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COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
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SOFTWARE IS DISCLAIMED.
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*/
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/* Bluetooth HCI event handling. */
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#include <linux/module.h>
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#include <linux/types.h>
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#include <linux/errno.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/poll.h>
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#include <linux/fcntl.h>
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#include <linux/init.h>
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#include <linux/skbuff.h>
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#include <linux/interrupt.h>
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#include <linux/notifier.h>
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#include <net/sock.h>
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#include <asm/system.h>
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#include <asm/uaccess.h>
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#include <asm/unaligned.h>
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#include <net/bluetooth/bluetooth.h>
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#include <net/bluetooth/hci_core.h>
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#ifndef CONFIG_BT_HCI_CORE_DEBUG
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#undef BT_DBG
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#define BT_DBG(D...)
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#endif
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/* Handle HCI Event packets */
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/* Command Complete OGF LINK_CTL */
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static void hci_cc_link_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
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{
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__u8 status;
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struct hci_conn *pend;
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BT_DBG("%s ocf 0x%x", hdev->name, ocf);
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switch (ocf) {
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case OCF_INQUIRY_CANCEL:
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case OCF_EXIT_PERIODIC_INQ:
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status = *((__u8 *) skb->data);
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if (status) {
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BT_DBG("%s Inquiry cancel error: status 0x%x", hdev->name, status);
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} else {
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clear_bit(HCI_INQUIRY, &hdev->flags);
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hci_req_complete(hdev, status);
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}
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hci_dev_lock(hdev);
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pend = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
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if (pend)
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hci_acl_connect(pend);
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hci_dev_unlock(hdev);
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break;
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default:
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BT_DBG("%s Command complete: ogf LINK_CTL ocf %x", hdev->name, ocf);
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break;
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}
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}
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/* Command Complete OGF LINK_POLICY */
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static void hci_cc_link_policy(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
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{
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struct hci_conn *conn;
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struct hci_rp_role_discovery *rd;
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struct hci_rp_write_link_policy *lp;
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void *sent;
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BT_DBG("%s ocf 0x%x", hdev->name, ocf);
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switch (ocf) {
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case OCF_ROLE_DISCOVERY:
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rd = (void *) skb->data;
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if (rd->status)
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break;
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hci_dev_lock(hdev);
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conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(rd->handle));
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if (conn) {
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if (rd->role)
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conn->link_mode &= ~HCI_LM_MASTER;
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else
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conn->link_mode |= HCI_LM_MASTER;
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}
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hci_dev_unlock(hdev);
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break;
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case OCF_WRITE_LINK_POLICY:
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sent = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_WRITE_LINK_POLICY);
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if (!sent)
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break;
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lp = (struct hci_rp_write_link_policy *) skb->data;
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if (lp->status)
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break;
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hci_dev_lock(hdev);
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conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(lp->handle));
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if (conn) {
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__le16 policy = get_unaligned((__le16 *) (sent + 2));
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conn->link_policy = __le16_to_cpu(policy);
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}
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hci_dev_unlock(hdev);
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break;
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default:
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BT_DBG("%s: Command complete: ogf LINK_POLICY ocf %x",
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hdev->name, ocf);
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break;
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}
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}
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/* Command Complete OGF HOST_CTL */
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static void hci_cc_host_ctl(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
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{
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__u8 status, param;
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__u16 setting;
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struct hci_rp_read_voice_setting *vs;
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void *sent;
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BT_DBG("%s ocf 0x%x", hdev->name, ocf);
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switch (ocf) {
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case OCF_RESET:
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status = *((__u8 *) skb->data);
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hci_req_complete(hdev, status);
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break;
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case OCF_SET_EVENT_FLT:
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status = *((__u8 *) skb->data);
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if (status) {
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BT_DBG("%s SET_EVENT_FLT failed %d", hdev->name, status);
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} else {
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BT_DBG("%s SET_EVENT_FLT succeseful", hdev->name);
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}
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break;
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case OCF_WRITE_AUTH_ENABLE:
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sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_AUTH_ENABLE);
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if (!sent)
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break;
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status = *((__u8 *) skb->data);
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param = *((__u8 *) sent);
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if (!status) {
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if (param == AUTH_ENABLED)
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set_bit(HCI_AUTH, &hdev->flags);
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else
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clear_bit(HCI_AUTH, &hdev->flags);
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}
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hci_req_complete(hdev, status);
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break;
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case OCF_WRITE_ENCRYPT_MODE:
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sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_ENCRYPT_MODE);
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if (!sent)
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break;
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status = *((__u8 *) skb->data);
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param = *((__u8 *) sent);
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if (!status) {
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if (param)
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set_bit(HCI_ENCRYPT, &hdev->flags);
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else
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clear_bit(HCI_ENCRYPT, &hdev->flags);
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}
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hci_req_complete(hdev, status);
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break;
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case OCF_WRITE_CA_TIMEOUT:
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status = *((__u8 *) skb->data);
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if (status) {
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BT_DBG("%s OCF_WRITE_CA_TIMEOUT failed %d", hdev->name, status);
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} else {
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BT_DBG("%s OCF_WRITE_CA_TIMEOUT succeseful", hdev->name);
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}
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break;
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case OCF_WRITE_PG_TIMEOUT:
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status = *((__u8 *) skb->data);
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if (status) {
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BT_DBG("%s OCF_WRITE_PG_TIMEOUT failed %d", hdev->name, status);
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} else {
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BT_DBG("%s: OCF_WRITE_PG_TIMEOUT succeseful", hdev->name);
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}
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break;
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case OCF_WRITE_SCAN_ENABLE:
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sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_SCAN_ENABLE);
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if (!sent)
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break;
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status = *((__u8 *) skb->data);
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param = *((__u8 *) sent);
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BT_DBG("param 0x%x", param);
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if (!status) {
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clear_bit(HCI_PSCAN, &hdev->flags);
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clear_bit(HCI_ISCAN, &hdev->flags);
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if (param & SCAN_INQUIRY)
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set_bit(HCI_ISCAN, &hdev->flags);
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if (param & SCAN_PAGE)
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set_bit(HCI_PSCAN, &hdev->flags);
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}
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hci_req_complete(hdev, status);
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break;
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case OCF_READ_VOICE_SETTING:
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vs = (struct hci_rp_read_voice_setting *) skb->data;
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if (vs->status) {
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BT_DBG("%s READ_VOICE_SETTING failed %d", hdev->name, vs->status);
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break;
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}
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setting = __le16_to_cpu(vs->voice_setting);
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if (hdev->voice_setting != setting ) {
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hdev->voice_setting = setting;
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BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
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if (hdev->notify) {
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tasklet_disable(&hdev->tx_task);
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hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
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tasklet_enable(&hdev->tx_task);
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}
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}
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break;
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case OCF_WRITE_VOICE_SETTING:
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sent = hci_sent_cmd_data(hdev, OGF_HOST_CTL, OCF_WRITE_VOICE_SETTING);
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if (!sent)
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break;
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status = *((__u8 *) skb->data);
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setting = __le16_to_cpu(get_unaligned((__le16 *) sent));
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if (!status && hdev->voice_setting != setting) {
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hdev->voice_setting = setting;
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BT_DBG("%s: voice setting 0x%04x", hdev->name, setting);
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if (hdev->notify) {
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tasklet_disable(&hdev->tx_task);
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hdev->notify(hdev, HCI_NOTIFY_VOICE_SETTING);
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tasklet_enable(&hdev->tx_task);
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}
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}
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hci_req_complete(hdev, status);
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break;
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case OCF_HOST_BUFFER_SIZE:
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status = *((__u8 *) skb->data);
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if (status) {
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BT_DBG("%s OCF_BUFFER_SIZE failed %d", hdev->name, status);
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hci_req_complete(hdev, status);
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}
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break;
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default:
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BT_DBG("%s Command complete: ogf HOST_CTL ocf %x", hdev->name, ocf);
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break;
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}
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}
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/* Command Complete OGF INFO_PARAM */
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static void hci_cc_info_param(struct hci_dev *hdev, __u16 ocf, struct sk_buff *skb)
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{
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struct hci_rp_read_loc_version *lv;
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struct hci_rp_read_local_features *lf;
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struct hci_rp_read_buffer_size *bs;
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struct hci_rp_read_bd_addr *ba;
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BT_DBG("%s ocf 0x%x", hdev->name, ocf);
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switch (ocf) {
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case OCF_READ_LOCAL_VERSION:
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lv = (struct hci_rp_read_loc_version *) skb->data;
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if (lv->status) {
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BT_DBG("%s READ_LOCAL_VERSION failed %d", hdev->name, lf->status);
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break;
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}
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hdev->hci_ver = lv->hci_ver;
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hdev->hci_rev = btohs(lv->hci_rev);
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hdev->manufacturer = btohs(lv->manufacturer);
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BT_DBG("%s: manufacturer %d hci_ver %d hci_rev %d", hdev->name,
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hdev->manufacturer, hdev->hci_ver, hdev->hci_rev);
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break;
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case OCF_READ_LOCAL_FEATURES:
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lf = (struct hci_rp_read_local_features *) skb->data;
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if (lf->status) {
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BT_DBG("%s READ_LOCAL_FEATURES failed %d", hdev->name, lf->status);
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break;
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}
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memcpy(hdev->features, lf->features, sizeof(hdev->features));
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/* Adjust default settings according to features
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* supported by device. */
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if (hdev->features[0] & LMP_3SLOT)
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hdev->pkt_type |= (HCI_DM3 | HCI_DH3);
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if (hdev->features[0] & LMP_5SLOT)
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hdev->pkt_type |= (HCI_DM5 | HCI_DH5);
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if (hdev->features[1] & LMP_HV2) {
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hdev->pkt_type |= (HCI_HV2);
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hdev->esco_type |= (ESCO_HV2);
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}
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if (hdev->features[1] & LMP_HV3) {
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hdev->pkt_type |= (HCI_HV3);
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hdev->esco_type |= (ESCO_HV3);
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}
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if (hdev->features[3] & LMP_ESCO)
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hdev->esco_type |= (ESCO_EV3);
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if (hdev->features[4] & LMP_EV4)
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hdev->esco_type |= (ESCO_EV4);
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if (hdev->features[4] & LMP_EV5)
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hdev->esco_type |= (ESCO_EV5);
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BT_DBG("%s: features 0x%x 0x%x 0x%x", hdev->name,
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lf->features[0], lf->features[1], lf->features[2]);
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break;
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case OCF_READ_BUFFER_SIZE:
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bs = (struct hci_rp_read_buffer_size *) skb->data;
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if (bs->status) {
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BT_DBG("%s READ_BUFFER_SIZE failed %d", hdev->name, bs->status);
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hci_req_complete(hdev, bs->status);
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break;
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}
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hdev->acl_mtu = __le16_to_cpu(bs->acl_mtu);
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hdev->sco_mtu = bs->sco_mtu;
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hdev->acl_pkts = __le16_to_cpu(bs->acl_max_pkt);
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hdev->sco_pkts = __le16_to_cpu(bs->sco_max_pkt);
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if (test_bit(HCI_QUIRK_FIXUP_BUFFER_SIZE, &hdev->quirks)) {
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hdev->sco_mtu = 64;
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hdev->sco_pkts = 8;
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}
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hdev->acl_cnt = hdev->acl_pkts;
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hdev->sco_cnt = hdev->sco_pkts;
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BT_DBG("%s mtu: acl %d, sco %d max_pkt: acl %d, sco %d", hdev->name,
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hdev->acl_mtu, hdev->sco_mtu, hdev->acl_pkts, hdev->sco_pkts);
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break;
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case OCF_READ_BD_ADDR:
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ba = (struct hci_rp_read_bd_addr *) skb->data;
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if (!ba->status) {
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bacpy(&hdev->bdaddr, &ba->bdaddr);
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} else {
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BT_DBG("%s: READ_BD_ADDR failed %d", hdev->name, ba->status);
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}
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hci_req_complete(hdev, ba->status);
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break;
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default:
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BT_DBG("%s Command complete: ogf INFO_PARAM ocf %x", hdev->name, ocf);
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break;
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}
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}
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/* Command Status OGF LINK_CTL */
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static inline void hci_cs_create_conn(struct hci_dev *hdev, __u8 status)
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{
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struct hci_conn *conn;
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struct hci_cp_create_conn *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_CREATE_CONN);
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if (!cp)
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return;
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hci_dev_lock(hdev);
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conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &cp->bdaddr);
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BT_DBG("%s status 0x%x bdaddr %s conn %p", hdev->name,
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status, batostr(&cp->bdaddr), conn);
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if (status) {
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if (conn && conn->state == BT_CONNECT) {
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if (status != 0x0c || conn->attempt > 2) {
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conn->state = BT_CLOSED;
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hci_proto_connect_cfm(conn, status);
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hci_conn_del(conn);
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} else
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conn->state = BT_CONNECT2;
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}
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} else {
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if (!conn) {
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conn = hci_conn_add(hdev, ACL_LINK, &cp->bdaddr);
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if (conn) {
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conn->out = 1;
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conn->link_mode |= HCI_LM_MASTER;
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} else
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BT_ERR("No memmory for new connection");
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}
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}
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|
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hci_dev_unlock(hdev);
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}
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|
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static void hci_cs_link_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
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{
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BT_DBG("%s ocf 0x%x", hdev->name, ocf);
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switch (ocf) {
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case OCF_CREATE_CONN:
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hci_cs_create_conn(hdev, status);
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break;
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case OCF_ADD_SCO:
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if (status) {
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struct hci_conn *acl, *sco;
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struct hci_cp_add_sco *cp = hci_sent_cmd_data(hdev, OGF_LINK_CTL, OCF_ADD_SCO);
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__u16 handle;
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if (!cp)
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break;
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handle = __le16_to_cpu(cp->handle);
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BT_DBG("%s Add SCO error: handle %d status 0x%x", hdev->name, handle, status);
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hci_dev_lock(hdev);
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acl = hci_conn_hash_lookup_handle(hdev, handle);
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if (acl && (sco = acl->link)) {
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sco->state = BT_CLOSED;
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|
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hci_proto_connect_cfm(sco, status);
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hci_conn_del(sco);
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}
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|
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hci_dev_unlock(hdev);
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}
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break;
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|
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case OCF_INQUIRY:
|
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if (status) {
|
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BT_DBG("%s Inquiry error: status 0x%x", hdev->name, status);
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hci_req_complete(hdev, status);
|
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} else {
|
|
set_bit(HCI_INQUIRY, &hdev->flags);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
BT_DBG("%s Command status: ogf LINK_CTL ocf %x status %d",
|
|
hdev->name, ocf, status);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Command Status OGF LINK_POLICY */
|
|
static void hci_cs_link_policy(struct hci_dev *hdev, __u16 ocf, __u8 status)
|
|
{
|
|
BT_DBG("%s ocf 0x%x", hdev->name, ocf);
|
|
|
|
switch (ocf) {
|
|
case OCF_SNIFF_MODE:
|
|
if (status) {
|
|
struct hci_conn *conn;
|
|
struct hci_cp_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_SNIFF_MODE);
|
|
|
|
if (!cp)
|
|
break;
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
|
|
if (conn) {
|
|
clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
break;
|
|
|
|
case OCF_EXIT_SNIFF_MODE:
|
|
if (status) {
|
|
struct hci_conn *conn;
|
|
struct hci_cp_exit_sniff_mode *cp = hci_sent_cmd_data(hdev, OGF_LINK_POLICY, OCF_EXIT_SNIFF_MODE);
|
|
|
|
if (!cp)
|
|
break;
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(cp->handle));
|
|
if (conn) {
|
|
clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
break;
|
|
|
|
default:
|
|
BT_DBG("%s Command status: ogf LINK_POLICY ocf %x", hdev->name, ocf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Command Status OGF HOST_CTL */
|
|
static void hci_cs_host_ctl(struct hci_dev *hdev, __u16 ocf, __u8 status)
|
|
{
|
|
BT_DBG("%s ocf 0x%x", hdev->name, ocf);
|
|
|
|
switch (ocf) {
|
|
default:
|
|
BT_DBG("%s Command status: ogf HOST_CTL ocf %x", hdev->name, ocf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Command Status OGF INFO_PARAM */
|
|
static void hci_cs_info_param(struct hci_dev *hdev, __u16 ocf, __u8 status)
|
|
{
|
|
BT_DBG("%s: hci_cs_info_param: ocf 0x%x", hdev->name, ocf);
|
|
|
|
switch (ocf) {
|
|
default:
|
|
BT_DBG("%s Command status: ogf INFO_PARAM ocf %x", hdev->name, ocf);
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Inquiry Complete */
|
|
static inline void hci_inquiry_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
__u8 status = *((__u8 *) skb->data);
|
|
struct hci_conn *pend;
|
|
|
|
BT_DBG("%s status %d", hdev->name, status);
|
|
|
|
clear_bit(HCI_INQUIRY, &hdev->flags);
|
|
hci_req_complete(hdev, status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
pend = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
|
|
if (pend)
|
|
hci_acl_connect(pend);
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Inquiry Result */
|
|
static inline void hci_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct inquiry_data data;
|
|
struct inquiry_info *info = (struct inquiry_info *) (skb->data + 1);
|
|
int num_rsp = *((__u8 *) skb->data);
|
|
|
|
BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
|
|
|
|
if (!num_rsp)
|
|
return;
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
for (; num_rsp; num_rsp--) {
|
|
bacpy(&data.bdaddr, &info->bdaddr);
|
|
data.pscan_rep_mode = info->pscan_rep_mode;
|
|
data.pscan_period_mode = info->pscan_period_mode;
|
|
data.pscan_mode = info->pscan_mode;
|
|
memcpy(data.dev_class, info->dev_class, 3);
|
|
data.clock_offset = info->clock_offset;
|
|
data.rssi = 0x00;
|
|
info++;
|
|
hci_inquiry_cache_update(hdev, &data);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Inquiry Result With RSSI */
|
|
static inline void hci_inquiry_result_with_rssi_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct inquiry_data data;
|
|
int num_rsp = *((__u8 *) skb->data);
|
|
|
|
BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
|
|
|
|
if (!num_rsp)
|
|
return;
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
if ((skb->len - 1) / num_rsp != sizeof(struct inquiry_info_with_rssi)) {
|
|
struct inquiry_info_with_rssi_and_pscan_mode *info =
|
|
(struct inquiry_info_with_rssi_and_pscan_mode *) (skb->data + 1);
|
|
|
|
for (; num_rsp; num_rsp--) {
|
|
bacpy(&data.bdaddr, &info->bdaddr);
|
|
data.pscan_rep_mode = info->pscan_rep_mode;
|
|
data.pscan_period_mode = info->pscan_period_mode;
|
|
data.pscan_mode = info->pscan_mode;
|
|
memcpy(data.dev_class, info->dev_class, 3);
|
|
data.clock_offset = info->clock_offset;
|
|
data.rssi = info->rssi;
|
|
info++;
|
|
hci_inquiry_cache_update(hdev, &data);
|
|
}
|
|
} else {
|
|
struct inquiry_info_with_rssi *info =
|
|
(struct inquiry_info_with_rssi *) (skb->data + 1);
|
|
|
|
for (; num_rsp; num_rsp--) {
|
|
bacpy(&data.bdaddr, &info->bdaddr);
|
|
data.pscan_rep_mode = info->pscan_rep_mode;
|
|
data.pscan_period_mode = info->pscan_period_mode;
|
|
data.pscan_mode = 0x00;
|
|
memcpy(data.dev_class, info->dev_class, 3);
|
|
data.clock_offset = info->clock_offset;
|
|
data.rssi = info->rssi;
|
|
info++;
|
|
hci_inquiry_cache_update(hdev, &data);
|
|
}
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Extended Inquiry Result */
|
|
static inline void hci_extended_inquiry_result_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct inquiry_data data;
|
|
struct extended_inquiry_info *info = (struct extended_inquiry_info *) (skb->data + 1);
|
|
int num_rsp = *((__u8 *) skb->data);
|
|
|
|
BT_DBG("%s num_rsp %d", hdev->name, num_rsp);
|
|
|
|
if (!num_rsp)
|
|
return;
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
for (; num_rsp; num_rsp--) {
|
|
bacpy(&data.bdaddr, &info->bdaddr);
|
|
data.pscan_rep_mode = info->pscan_rep_mode;
|
|
data.pscan_period_mode = info->pscan_period_mode;
|
|
data.pscan_mode = 0x00;
|
|
memcpy(data.dev_class, info->dev_class, 3);
|
|
data.clock_offset = info->clock_offset;
|
|
data.rssi = info->rssi;
|
|
info++;
|
|
hci_inquiry_cache_update(hdev, &data);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Connect Request */
|
|
static inline void hci_conn_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_conn_request *ev = (struct hci_ev_conn_request *) skb->data;
|
|
int mask = hdev->link_mode;
|
|
|
|
BT_DBG("%s Connection request: %s type 0x%x", hdev->name,
|
|
batostr(&ev->bdaddr), ev->link_type);
|
|
|
|
mask |= hci_proto_connect_ind(hdev, &ev->bdaddr, ev->link_type);
|
|
|
|
if (mask & HCI_LM_ACCEPT) {
|
|
/* Connection accepted */
|
|
struct hci_conn *conn;
|
|
struct hci_cp_accept_conn_req cp;
|
|
|
|
hci_dev_lock(hdev);
|
|
conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
|
|
if (!conn) {
|
|
if (!(conn = hci_conn_add(hdev, ev->link_type, &ev->bdaddr))) {
|
|
BT_ERR("No memmory for new connection");
|
|
hci_dev_unlock(hdev);
|
|
return;
|
|
}
|
|
}
|
|
memcpy(conn->dev_class, ev->dev_class, 3);
|
|
conn->state = BT_CONNECT;
|
|
hci_dev_unlock(hdev);
|
|
|
|
bacpy(&cp.bdaddr, &ev->bdaddr);
|
|
|
|
if (lmp_rswitch_capable(hdev) && (mask & HCI_LM_MASTER))
|
|
cp.role = 0x00; /* Become master */
|
|
else
|
|
cp.role = 0x01; /* Remain slave */
|
|
|
|
hci_send_cmd(hdev, OGF_LINK_CTL,
|
|
OCF_ACCEPT_CONN_REQ, sizeof(cp), &cp);
|
|
} else {
|
|
/* Connection rejected */
|
|
struct hci_cp_reject_conn_req cp;
|
|
|
|
bacpy(&cp.bdaddr, &ev->bdaddr);
|
|
cp.reason = 0x0f;
|
|
hci_send_cmd(hdev, OGF_LINK_CTL,
|
|
OCF_REJECT_CONN_REQ, sizeof(cp), &cp);
|
|
}
|
|
}
|
|
|
|
/* Connect Complete */
|
|
static inline void hci_conn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_conn_complete *ev = (struct hci_ev_conn_complete *) skb->data;
|
|
struct hci_conn *conn, *pend;
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_ba(hdev, ev->link_type, &ev->bdaddr);
|
|
if (!conn) {
|
|
hci_dev_unlock(hdev);
|
|
return;
|
|
}
|
|
|
|
if (!ev->status) {
|
|
conn->handle = __le16_to_cpu(ev->handle);
|
|
conn->state = BT_CONNECTED;
|
|
|
|
if (test_bit(HCI_AUTH, &hdev->flags))
|
|
conn->link_mode |= HCI_LM_AUTH;
|
|
|
|
if (test_bit(HCI_ENCRYPT, &hdev->flags))
|
|
conn->link_mode |= HCI_LM_ENCRYPT;
|
|
|
|
/* Get remote features */
|
|
if (conn->type == ACL_LINK) {
|
|
struct hci_cp_read_remote_features cp;
|
|
cp.handle = ev->handle;
|
|
hci_send_cmd(hdev, OGF_LINK_CTL,
|
|
OCF_READ_REMOTE_FEATURES, sizeof(cp), &cp);
|
|
}
|
|
|
|
/* Set link policy */
|
|
if (conn->type == ACL_LINK && hdev->link_policy) {
|
|
struct hci_cp_write_link_policy cp;
|
|
cp.handle = ev->handle;
|
|
cp.policy = cpu_to_le16(hdev->link_policy);
|
|
hci_send_cmd(hdev, OGF_LINK_POLICY,
|
|
OCF_WRITE_LINK_POLICY, sizeof(cp), &cp);
|
|
}
|
|
|
|
/* Set packet type for incoming connection */
|
|
if (!conn->out) {
|
|
struct hci_cp_change_conn_ptype cp;
|
|
cp.handle = ev->handle;
|
|
cp.pkt_type = (conn->type == ACL_LINK) ?
|
|
cpu_to_le16(hdev->pkt_type & ACL_PTYPE_MASK):
|
|
cpu_to_le16(hdev->pkt_type & SCO_PTYPE_MASK);
|
|
|
|
hci_send_cmd(hdev, OGF_LINK_CTL,
|
|
OCF_CHANGE_CONN_PTYPE, sizeof(cp), &cp);
|
|
} else {
|
|
/* Update disconnect timer */
|
|
hci_conn_hold(conn);
|
|
hci_conn_put(conn);
|
|
}
|
|
} else
|
|
conn->state = BT_CLOSED;
|
|
|
|
if (conn->type == ACL_LINK) {
|
|
struct hci_conn *sco = conn->link;
|
|
if (sco) {
|
|
if (!ev->status)
|
|
hci_add_sco(sco, conn->handle);
|
|
else {
|
|
hci_proto_connect_cfm(sco, ev->status);
|
|
hci_conn_del(sco);
|
|
}
|
|
}
|
|
}
|
|
|
|
hci_proto_connect_cfm(conn, ev->status);
|
|
if (ev->status)
|
|
hci_conn_del(conn);
|
|
|
|
pend = hci_conn_hash_lookup_state(hdev, ACL_LINK, BT_CONNECT2);
|
|
if (pend)
|
|
hci_acl_connect(pend);
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Disconnect Complete */
|
|
static inline void hci_disconn_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_disconn_complete *ev = (struct hci_ev_disconn_complete *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
if (ev->status)
|
|
return;
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn) {
|
|
conn->state = BT_CLOSED;
|
|
hci_proto_disconn_ind(conn, ev->reason);
|
|
hci_conn_del(conn);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Number of completed packets */
|
|
static inline void hci_num_comp_pkts_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_num_comp_pkts *ev = (struct hci_ev_num_comp_pkts *) skb->data;
|
|
__le16 *ptr;
|
|
int i;
|
|
|
|
skb_pull(skb, sizeof(*ev));
|
|
|
|
BT_DBG("%s num_hndl %d", hdev->name, ev->num_hndl);
|
|
|
|
if (skb->len < ev->num_hndl * 4) {
|
|
BT_DBG("%s bad parameters", hdev->name);
|
|
return;
|
|
}
|
|
|
|
tasklet_disable(&hdev->tx_task);
|
|
|
|
for (i = 0, ptr = (__le16 *) skb->data; i < ev->num_hndl; i++) {
|
|
struct hci_conn *conn;
|
|
__u16 handle, count;
|
|
|
|
handle = __le16_to_cpu(get_unaligned(ptr++));
|
|
count = __le16_to_cpu(get_unaligned(ptr++));
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, handle);
|
|
if (conn) {
|
|
conn->sent -= count;
|
|
|
|
if (conn->type == ACL_LINK) {
|
|
if ((hdev->acl_cnt += count) > hdev->acl_pkts)
|
|
hdev->acl_cnt = hdev->acl_pkts;
|
|
} else {
|
|
if ((hdev->sco_cnt += count) > hdev->sco_pkts)
|
|
hdev->sco_cnt = hdev->sco_pkts;
|
|
}
|
|
}
|
|
}
|
|
hci_sched_tx(hdev);
|
|
|
|
tasklet_enable(&hdev->tx_task);
|
|
}
|
|
|
|
/* Role Change */
|
|
static inline void hci_role_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_role_change *ev = (struct hci_ev_role_change *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, &ev->bdaddr);
|
|
if (conn) {
|
|
if (!ev->status) {
|
|
if (ev->role)
|
|
conn->link_mode &= ~HCI_LM_MASTER;
|
|
else
|
|
conn->link_mode |= HCI_LM_MASTER;
|
|
}
|
|
|
|
clear_bit(HCI_CONN_RSWITCH_PEND, &conn->pend);
|
|
|
|
hci_role_switch_cfm(conn, ev->status, ev->role);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Mode Change */
|
|
static inline void hci_mode_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_mode_change *ev = (struct hci_ev_mode_change *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn) {
|
|
conn->mode = ev->mode;
|
|
conn->interval = __le16_to_cpu(ev->interval);
|
|
|
|
if (!test_and_clear_bit(HCI_CONN_MODE_CHANGE_PEND, &conn->pend)) {
|
|
if (conn->mode == HCI_CM_ACTIVE)
|
|
conn->power_save = 1;
|
|
else
|
|
conn->power_save = 0;
|
|
}
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Authentication Complete */
|
|
static inline void hci_auth_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_auth_complete *ev = (struct hci_ev_auth_complete *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn) {
|
|
if (!ev->status)
|
|
conn->link_mode |= HCI_LM_AUTH;
|
|
|
|
clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
|
|
|
|
hci_auth_cfm(conn, ev->status);
|
|
|
|
if (test_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend)) {
|
|
if (!ev->status) {
|
|
struct hci_cp_set_conn_encrypt cp;
|
|
cp.handle = cpu_to_le16(conn->handle);
|
|
cp.encrypt = 1;
|
|
hci_send_cmd(conn->hdev, OGF_LINK_CTL,
|
|
OCF_SET_CONN_ENCRYPT, sizeof(cp), &cp);
|
|
} else {
|
|
clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
|
|
hci_encrypt_cfm(conn, ev->status, 0x00);
|
|
}
|
|
}
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Encryption Change */
|
|
static inline void hci_encrypt_change_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_encrypt_change *ev = (struct hci_ev_encrypt_change *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn) {
|
|
if (!ev->status) {
|
|
if (ev->encrypt)
|
|
conn->link_mode |= HCI_LM_ENCRYPT;
|
|
else
|
|
conn->link_mode &= ~HCI_LM_ENCRYPT;
|
|
}
|
|
|
|
clear_bit(HCI_CONN_ENCRYPT_PEND, &conn->pend);
|
|
|
|
hci_encrypt_cfm(conn, ev->status, ev->encrypt);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Change Connection Link Key Complete */
|
|
static inline void hci_change_conn_link_key_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_change_conn_link_key_complete *ev = (struct hci_ev_change_conn_link_key_complete *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn) {
|
|
if (!ev->status)
|
|
conn->link_mode |= HCI_LM_SECURE;
|
|
|
|
clear_bit(HCI_CONN_AUTH_PEND, &conn->pend);
|
|
|
|
hci_key_change_cfm(conn, ev->status);
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Pin Code Request*/
|
|
static inline void hci_pin_code_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
/* Link Key Request */
|
|
static inline void hci_link_key_request_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
/* Link Key Notification */
|
|
static inline void hci_link_key_notify_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
}
|
|
|
|
/* Remote Features */
|
|
static inline void hci_remote_features_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_remote_features *ev = (struct hci_ev_remote_features *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn && !ev->status) {
|
|
memcpy(conn->features, ev->features, sizeof(conn->features));
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Clock Offset */
|
|
static inline void hci_clock_offset_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_clock_offset *ev = (struct hci_ev_clock_offset *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn && !ev->status) {
|
|
struct inquiry_entry *ie;
|
|
|
|
if ((ie = hci_inquiry_cache_lookup(hdev, &conn->dst))) {
|
|
ie->data.clock_offset = ev->clock_offset;
|
|
ie->timestamp = jiffies;
|
|
}
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Page Scan Repetition Mode */
|
|
static inline void hci_pscan_rep_mode_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_pscan_rep_mode *ev = (struct hci_ev_pscan_rep_mode *) skb->data;
|
|
struct inquiry_entry *ie;
|
|
|
|
BT_DBG("%s", hdev->name);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
if ((ie = hci_inquiry_cache_lookup(hdev, &ev->bdaddr))) {
|
|
ie->data.pscan_rep_mode = ev->pscan_rep_mode;
|
|
ie->timestamp = jiffies;
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
/* Sniff Subrate */
|
|
static inline void hci_sniff_subrate_evt(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_ev_sniff_subrate *ev = (struct hci_ev_sniff_subrate *) skb->data;
|
|
struct hci_conn *conn;
|
|
|
|
BT_DBG("%s status %d", hdev->name, ev->status);
|
|
|
|
hci_dev_lock(hdev);
|
|
|
|
conn = hci_conn_hash_lookup_handle(hdev, __le16_to_cpu(ev->handle));
|
|
if (conn) {
|
|
}
|
|
|
|
hci_dev_unlock(hdev);
|
|
}
|
|
|
|
void hci_event_packet(struct hci_dev *hdev, struct sk_buff *skb)
|
|
{
|
|
struct hci_event_hdr *hdr = (struct hci_event_hdr *) skb->data;
|
|
struct hci_ev_cmd_complete *ec;
|
|
struct hci_ev_cmd_status *cs;
|
|
u16 opcode, ocf, ogf;
|
|
|
|
skb_pull(skb, HCI_EVENT_HDR_SIZE);
|
|
|
|
BT_DBG("%s evt 0x%x", hdev->name, hdr->evt);
|
|
|
|
switch (hdr->evt) {
|
|
case HCI_EV_NUM_COMP_PKTS:
|
|
hci_num_comp_pkts_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_INQUIRY_COMPLETE:
|
|
hci_inquiry_complete_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_INQUIRY_RESULT:
|
|
hci_inquiry_result_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_INQUIRY_RESULT_WITH_RSSI:
|
|
hci_inquiry_result_with_rssi_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_EXTENDED_INQUIRY_RESULT:
|
|
hci_extended_inquiry_result_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_CONN_REQUEST:
|
|
hci_conn_request_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_CONN_COMPLETE:
|
|
hci_conn_complete_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_DISCONN_COMPLETE:
|
|
hci_disconn_complete_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_ROLE_CHANGE:
|
|
hci_role_change_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_MODE_CHANGE:
|
|
hci_mode_change_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_AUTH_COMPLETE:
|
|
hci_auth_complete_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_ENCRYPT_CHANGE:
|
|
hci_encrypt_change_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_CHANGE_CONN_LINK_KEY_COMPLETE:
|
|
hci_change_conn_link_key_complete_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_PIN_CODE_REQ:
|
|
hci_pin_code_request_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_LINK_KEY_REQ:
|
|
hci_link_key_request_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_LINK_KEY_NOTIFY:
|
|
hci_link_key_notify_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_REMOTE_FEATURES:
|
|
hci_remote_features_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_CLOCK_OFFSET:
|
|
hci_clock_offset_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_PSCAN_REP_MODE:
|
|
hci_pscan_rep_mode_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_SNIFF_SUBRATE:
|
|
hci_sniff_subrate_evt(hdev, skb);
|
|
break;
|
|
|
|
case HCI_EV_CMD_STATUS:
|
|
cs = (struct hci_ev_cmd_status *) skb->data;
|
|
skb_pull(skb, sizeof(cs));
|
|
|
|
opcode = __le16_to_cpu(cs->opcode);
|
|
ogf = hci_opcode_ogf(opcode);
|
|
ocf = hci_opcode_ocf(opcode);
|
|
|
|
switch (ogf) {
|
|
case OGF_INFO_PARAM:
|
|
hci_cs_info_param(hdev, ocf, cs->status);
|
|
break;
|
|
|
|
case OGF_HOST_CTL:
|
|
hci_cs_host_ctl(hdev, ocf, cs->status);
|
|
break;
|
|
|
|
case OGF_LINK_CTL:
|
|
hci_cs_link_ctl(hdev, ocf, cs->status);
|
|
break;
|
|
|
|
case OGF_LINK_POLICY:
|
|
hci_cs_link_policy(hdev, ocf, cs->status);
|
|
break;
|
|
|
|
default:
|
|
BT_DBG("%s Command Status OGF %x", hdev->name, ogf);
|
|
break;
|
|
}
|
|
|
|
if (cs->ncmd) {
|
|
atomic_set(&hdev->cmd_cnt, 1);
|
|
if (!skb_queue_empty(&hdev->cmd_q))
|
|
hci_sched_cmd(hdev);
|
|
}
|
|
break;
|
|
|
|
case HCI_EV_CMD_COMPLETE:
|
|
ec = (struct hci_ev_cmd_complete *) skb->data;
|
|
skb_pull(skb, sizeof(*ec));
|
|
|
|
opcode = __le16_to_cpu(ec->opcode);
|
|
ogf = hci_opcode_ogf(opcode);
|
|
ocf = hci_opcode_ocf(opcode);
|
|
|
|
switch (ogf) {
|
|
case OGF_INFO_PARAM:
|
|
hci_cc_info_param(hdev, ocf, skb);
|
|
break;
|
|
|
|
case OGF_HOST_CTL:
|
|
hci_cc_host_ctl(hdev, ocf, skb);
|
|
break;
|
|
|
|
case OGF_LINK_CTL:
|
|
hci_cc_link_ctl(hdev, ocf, skb);
|
|
break;
|
|
|
|
case OGF_LINK_POLICY:
|
|
hci_cc_link_policy(hdev, ocf, skb);
|
|
break;
|
|
|
|
default:
|
|
BT_DBG("%s Command Completed OGF %x", hdev->name, ogf);
|
|
break;
|
|
}
|
|
|
|
if (ec->ncmd) {
|
|
atomic_set(&hdev->cmd_cnt, 1);
|
|
if (!skb_queue_empty(&hdev->cmd_q))
|
|
hci_sched_cmd(hdev);
|
|
}
|
|
break;
|
|
}
|
|
|
|
kfree_skb(skb);
|
|
hdev->stat.evt_rx++;
|
|
}
|
|
|
|
/* Generate internal stack event */
|
|
void hci_si_event(struct hci_dev *hdev, int type, int dlen, void *data)
|
|
{
|
|
struct hci_event_hdr *hdr;
|
|
struct hci_ev_stack_internal *ev;
|
|
struct sk_buff *skb;
|
|
|
|
skb = bt_skb_alloc(HCI_EVENT_HDR_SIZE + sizeof(*ev) + dlen, GFP_ATOMIC);
|
|
if (!skb)
|
|
return;
|
|
|
|
hdr = (void *) skb_put(skb, HCI_EVENT_HDR_SIZE);
|
|
hdr->evt = HCI_EV_STACK_INTERNAL;
|
|
hdr->plen = sizeof(*ev) + dlen;
|
|
|
|
ev = (void *) skb_put(skb, sizeof(*ev) + dlen);
|
|
ev->type = type;
|
|
memcpy(ev->data, data, dlen);
|
|
|
|
bt_cb(skb)->incoming = 1;
|
|
__net_timestamp(skb);
|
|
|
|
bt_cb(skb)->pkt_type = HCI_EVENT_PKT;
|
|
skb->dev = (void *) hdev;
|
|
hci_send_to_sock(hdev, skb);
|
|
kfree_skb(skb);
|
|
}
|