v4.19.13 snapshot.
diff --git a/net/bluetooth/hidp/hidp.h b/net/bluetooth/hidp/hidp.h
new file mode 100644
index 0000000..8798492
--- /dev/null
+++ b/net/bluetooth/hidp/hidp.h
@@ -0,0 +1,192 @@
+/*
+ HIDP implementation for Linux Bluetooth stack (BlueZ).
+ Copyright (C) 2003-2004 Marcel Holtmann <marcel@holtmann.org>
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 as
+ published by the Free Software Foundation;
+
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+ IN NO EVENT SHALL THE COPYRIGHT HOLDER(S) AND AUTHOR(S) BE LIABLE FOR ANY
+ CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES
+ WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+
+ ALL LIABILITY, INCLUDING LIABILITY FOR INFRINGEMENT OF ANY PATENTS,
+ COPYRIGHTS, TRADEMARKS OR OTHER RIGHTS, RELATING TO USE OF THIS
+ SOFTWARE IS DISCLAIMED.
+*/
+
+#ifndef __HIDP_H
+#define __HIDP_H
+
+#include <linux/types.h>
+#include <linux/hid.h>
+#include <linux/kref.h>
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/l2cap.h>
+
+/* HIDP header masks */
+#define HIDP_HEADER_TRANS_MASK 0xf0
+#define HIDP_HEADER_PARAM_MASK 0x0f
+
+/* HIDP transaction types */
+#define HIDP_TRANS_HANDSHAKE 0x00
+#define HIDP_TRANS_HID_CONTROL 0x10
+#define HIDP_TRANS_GET_REPORT 0x40
+#define HIDP_TRANS_SET_REPORT 0x50
+#define HIDP_TRANS_GET_PROTOCOL 0x60
+#define HIDP_TRANS_SET_PROTOCOL 0x70
+#define HIDP_TRANS_GET_IDLE 0x80
+#define HIDP_TRANS_SET_IDLE 0x90
+#define HIDP_TRANS_DATA 0xa0
+#define HIDP_TRANS_DATC 0xb0
+
+/* HIDP handshake results */
+#define HIDP_HSHK_SUCCESSFUL 0x00
+#define HIDP_HSHK_NOT_READY 0x01
+#define HIDP_HSHK_ERR_INVALID_REPORT_ID 0x02
+#define HIDP_HSHK_ERR_UNSUPPORTED_REQUEST 0x03
+#define HIDP_HSHK_ERR_INVALID_PARAMETER 0x04
+#define HIDP_HSHK_ERR_UNKNOWN 0x0e
+#define HIDP_HSHK_ERR_FATAL 0x0f
+
+/* HIDP control operation parameters */
+#define HIDP_CTRL_NOP 0x00
+#define HIDP_CTRL_HARD_RESET 0x01
+#define HIDP_CTRL_SOFT_RESET 0x02
+#define HIDP_CTRL_SUSPEND 0x03
+#define HIDP_CTRL_EXIT_SUSPEND 0x04
+#define HIDP_CTRL_VIRTUAL_CABLE_UNPLUG 0x05
+
+/* HIDP data transaction headers */
+#define HIDP_DATA_RTYPE_MASK 0x03
+#define HIDP_DATA_RSRVD_MASK 0x0c
+#define HIDP_DATA_RTYPE_OTHER 0x00
+#define HIDP_DATA_RTYPE_INPUT 0x01
+#define HIDP_DATA_RTYPE_OUPUT 0x02
+#define HIDP_DATA_RTYPE_FEATURE 0x03
+
+/* HIDP protocol header parameters */
+#define HIDP_PROTO_BOOT 0x00
+#define HIDP_PROTO_REPORT 0x01
+
+/* HIDP ioctl defines */
+#define HIDPCONNADD _IOW('H', 200, int)
+#define HIDPCONNDEL _IOW('H', 201, int)
+#define HIDPGETCONNLIST _IOR('H', 210, int)
+#define HIDPGETCONNINFO _IOR('H', 211, int)
+
+#define HIDP_VIRTUAL_CABLE_UNPLUG 0
+#define HIDP_BOOT_PROTOCOL_MODE 1
+#define HIDP_BLUETOOTH_VENDOR_ID 9
+#define HIDP_WAITING_FOR_RETURN 10
+#define HIDP_WAITING_FOR_SEND_ACK 11
+
+struct hidp_connadd_req {
+ int ctrl_sock; /* Connected control socket */
+ int intr_sock; /* Connected interrupt socket */
+ __u16 parser;
+ __u16 rd_size;
+ __u8 __user *rd_data;
+ __u8 country;
+ __u8 subclass;
+ __u16 vendor;
+ __u16 product;
+ __u16 version;
+ __u32 flags;
+ __u32 idle_to;
+ char name[128];
+};
+
+struct hidp_conndel_req {
+ bdaddr_t bdaddr;
+ __u32 flags;
+};
+
+struct hidp_conninfo {
+ bdaddr_t bdaddr;
+ __u32 flags;
+ __u16 state;
+ __u16 vendor;
+ __u16 product;
+ __u16 version;
+ char name[128];
+};
+
+struct hidp_connlist_req {
+ __u32 cnum;
+ struct hidp_conninfo __user *ci;
+};
+
+int hidp_connection_add(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
+int hidp_connection_del(struct hidp_conndel_req *req);
+int hidp_get_connlist(struct hidp_connlist_req *req);
+int hidp_get_conninfo(struct hidp_conninfo *ci);
+
+enum hidp_session_state {
+ HIDP_SESSION_IDLING,
+ HIDP_SESSION_PREPARING,
+ HIDP_SESSION_RUNNING,
+};
+
+/* HIDP session defines */
+struct hidp_session {
+ struct list_head list;
+ struct kref ref;
+
+ /* runtime management */
+ atomic_t state;
+ wait_queue_head_t state_queue;
+ atomic_t terminate;
+ struct task_struct *task;
+ unsigned long flags;
+
+ /* connection management */
+ bdaddr_t bdaddr;
+ struct l2cap_conn *conn;
+ struct l2cap_user user;
+ struct socket *ctrl_sock;
+ struct socket *intr_sock;
+ struct sk_buff_head ctrl_transmit;
+ struct sk_buff_head intr_transmit;
+ uint ctrl_mtu;
+ uint intr_mtu;
+ unsigned long idle_to;
+
+ /* device management */
+ struct work_struct dev_init;
+ struct input_dev *input;
+ struct hid_device *hid;
+ struct timer_list timer;
+
+ /* Report descriptor */
+ __u8 *rd_data;
+ uint rd_size;
+
+ /* session data */
+ unsigned char keys[8];
+ unsigned char leds;
+
+ /* Used in hidp_get_raw_report() */
+ int waiting_report_type; /* HIDP_DATA_RTYPE_* */
+ int waiting_report_number; /* -1 for not numbered */
+ struct mutex report_mutex;
+ struct sk_buff *report_return;
+ wait_queue_head_t report_queue;
+
+ /* Used in hidp_output_raw_report() */
+ int output_report_success; /* boolean */
+
+ /* temporary input buffer */
+ u8 input_buf[HID_MAX_BUFFER_SIZE];
+};
+
+/* HIDP init defines */
+int __init hidp_init_sockets(void);
+void __exit hidp_cleanup_sockets(void);
+
+#endif /* __HIDP_H */