Commit a47c02d5 authored by Marcel Holtmann's avatar Marcel Holtmann Committed by Marcel Holtmann

[Bluetooth] Add HID protocol support

This patch adds support for the Bluetooth HID protocol to the
Bluetooth subsystem. Currently only the boot mode is supported.
Signed-off-by: default avatarMarcel Holtmann <marcel@holtmann.org>
parent 5d681f99
...@@ -1399,6 +1399,7 @@ W: http://www.holtmann.org ...@@ -1399,6 +1399,7 @@ W: http://www.holtmann.org
D: Maintainer of the Linux Bluetooth Subsystem D: Maintainer of the Linux Bluetooth Subsystem
D: Author and maintainer of the various Bluetooth HCI drivers D: Author and maintainer of the various Bluetooth HCI drivers
D: Author and maintainer of the CAPI message transport protocol driver D: Author and maintainer of the CAPI message transport protocol driver
D: Author and maintainer of the Bluetooth HID protocol driver
D: Various other Bluetooth related patches, cleanups and fixes D: Various other Bluetooth related patches, cleanups and fixes
S: Germany S: Germany
......
...@@ -382,6 +382,11 @@ P: Marcel Holtmann ...@@ -382,6 +382,11 @@ P: Marcel Holtmann
M: marcel@holtmann.org M: marcel@holtmann.org
S: Maintained S: Maintained
BLUETOOTH HIDP LAYER
P: Marcel Holtmann
M: marcel@holtmann.org
S: Maintained
BLUETOOTH HCI UART DRIVER BLUETOOTH HCI UART DRIVER
P: Marcel Holtmann P: Marcel Holtmann
M: marcel@holtmann.org M: marcel@holtmann.org
......
...@@ -1960,6 +1960,11 @@ static int do_blkgetsize64(unsigned int fd, unsigned int cmd, ...@@ -1960,6 +1960,11 @@ static int do_blkgetsize64(unsigned int fd, unsigned int cmd,
#define CMTPGETCONNLIST _IOR('C', 210, int) #define CMTPGETCONNLIST _IOR('C', 210, int)
#define CMTPGETCONNINFO _IOR('C', 211, int) #define CMTPGETCONNINFO _IOR('C', 211, int)
#define HIDPCONNADD _IOW('H', 200, int)
#define HIDPCONNDEL _IOW('H', 201, int)
#define HIDPGETCONNLIST _IOR('H', 210, int)
#define HIDPGETCONNINFO _IOR('H', 211, int)
struct floppy_struct32 { struct floppy_struct32 {
compat_uint_t size; compat_uint_t size;
compat_uint_t sect; compat_uint_t sect;
......
...@@ -640,6 +640,10 @@ COMPATIBLE_IOCTL(CMTPCONNADD) ...@@ -640,6 +640,10 @@ COMPATIBLE_IOCTL(CMTPCONNADD)
COMPATIBLE_IOCTL(CMTPCONNDEL) COMPATIBLE_IOCTL(CMTPCONNDEL)
COMPATIBLE_IOCTL(CMTPGETCONNLIST) COMPATIBLE_IOCTL(CMTPGETCONNLIST)
COMPATIBLE_IOCTL(CMTPGETCONNINFO) COMPATIBLE_IOCTL(CMTPGETCONNINFO)
COMPATIBLE_IOCTL(HIDPCONNADD)
COMPATIBLE_IOCTL(HIDPCONNDEL)
COMPATIBLE_IOCTL(HIDPGETCONNLIST)
COMPATIBLE_IOCTL(HIDPGETCONNINFO)
/* CAPI */ /* CAPI */
COMPATIBLE_IOCTL(CAPI_REGISTER) COMPATIBLE_IOCTL(CAPI_REGISTER)
COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER) COMPATIBLE_IOCTL(CAPI_GET_MANUFACTURER)
......
...@@ -56,5 +56,7 @@ source "net/bluetooth/bnep/Kconfig" ...@@ -56,5 +56,7 @@ source "net/bluetooth/bnep/Kconfig"
source "net/bluetooth/cmtp/Kconfig" source "net/bluetooth/cmtp/Kconfig"
source "net/bluetooth/hidp/Kconfig"
source "drivers/bluetooth/Kconfig" source "drivers/bluetooth/Kconfig"
...@@ -8,5 +8,6 @@ obj-$(CONFIG_BT_SCO) += sco.o ...@@ -8,5 +8,6 @@ obj-$(CONFIG_BT_SCO) += sco.o
obj-$(CONFIG_BT_RFCOMM) += rfcomm/ obj-$(CONFIG_BT_RFCOMM) += rfcomm/
obj-$(CONFIG_BT_BNEP) += bnep/ obj-$(CONFIG_BT_BNEP) += bnep/
obj-$(CONFIG_BT_CMTP) += cmtp/ obj-$(CONFIG_BT_CMTP) += cmtp/
obj-$(CONFIG_BT_HIDP) += hidp/
bluetooth-objs := af_bluetooth.o hci_core.o hci_conn.o hci_event.o hci_sock.o hci_sysfs.o lib.o bluetooth-objs := af_bluetooth.o hci_core.o hci_conn.o hci_event.o hci_sock.o hci_sysfs.o lib.o
config BT_HIDP
tristate "HIDP protocol support"
depends on BT && BT_L2CAP
select INPUT
help
HIDP (Human Interface Device Protocol) is a transport layer
for HID reports. HIDP is required for the Bluetooth Human
Interface Device Profile.
Say Y here to compile HIDP support into the kernel or say M to
compile it as module (hidp).
#
# Makefile for the Linux Bluetooth HIDP layer
#
obj-$(CONFIG_BT_HIDP) += hidp.o
hidp-objs := core.o sock.o
This diff is collapsed.
/*
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 <net/bluetooth/bluetooth.h>
/* 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
struct hidp_connadd_req {
int ctrl_sock; // Connected control socket
int intr_sock; // Connteted interrupt socket
__u16 parser;
__u16 rd_size;
__u8 *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_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock);
int hidp_del_connection(struct hidp_conndel_req *req);
int hidp_get_connlist(struct hidp_connlist_req *req);
int hidp_get_conninfo(struct hidp_conninfo *ci);
/* HIDP session defines */
struct hidp_session {
struct list_head list;
struct socket *ctrl_sock;
struct socket *intr_sock;
bdaddr_t bdaddr;
unsigned long state;
unsigned long flags;
unsigned long idle_to;
uint ctrl_mtu;
uint intr_mtu;
atomic_t terminate;
unsigned char keys[8];
unsigned char leds;
struct input_dev *input;
struct timer_list timer;
struct sk_buff_head ctrl_transmit;
struct sk_buff_head intr_transmit;
};
static inline void hidp_schedule(struct hidp_session *session)
{
struct sock *ctrl_sk = session->ctrl_sock->sk;
struct sock *intr_sk = session->intr_sock->sk;
wake_up_interruptible(ctrl_sk->sk_sleep);
wake_up_interruptible(intr_sk->sk_sleep);
}
/* HIDP init defines */
extern int __init hidp_init_sockets(void);
extern void __exit hidp_cleanup_sockets(void);
#endif /* __HIDP_H */
/*
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.
*/
#include <linux/config.h>
#include <linux/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.h>
#include <linux/major.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/poll.h>
#include <linux/fcntl.h>
#include <linux/skbuff.h>
#include <linux/socket.h>
#include <linux/ioctl.h>
#include <linux/file.h>
#include <linux/init.h>
#include <net/sock.h>
#include "hidp.h"
#ifndef CONFIG_BT_HIDP_DEBUG
#undef BT_DBG
#define BT_DBG(D...)
#endif
static int hidp_sock_release(struct socket *sock)
{
struct sock *sk = sock->sk;
BT_DBG("sock %p sk %p", sock, sk);
if (!sk)
return 0;
sock_orphan(sk);
sock_put(sk);
return 0;
}
static int hidp_sock_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
void __user *argp = (void __user *) arg;
struct hidp_connadd_req ca;
struct hidp_conndel_req cd;
struct hidp_connlist_req cl;
struct hidp_conninfo ci;
struct socket *csock;
struct socket *isock;
int err;
BT_DBG("cmd %x arg %lx", cmd, arg);
switch (cmd) {
case HIDPCONNADD:
if (!capable(CAP_NET_ADMIN))
return -EACCES;
if (copy_from_user(&ca, argp, sizeof(ca)))
return -EFAULT;
csock = sockfd_lookup(ca.ctrl_sock, &err);
if (!csock)
return err;
isock = sockfd_lookup(ca.intr_sock, &err);
if (!isock) {
fput(csock->file);
return err;
}
if (csock->sk->sk_state != BT_CONNECTED || isock->sk->sk_state != BT_CONNECTED) {
fput(csock->file);
fput(isock->file);
return -EBADFD;
}
err = hidp_add_connection(&ca, csock, isock);
if (!err) {
if (copy_to_user(argp, &ca, sizeof(ca)))
err = -EFAULT;
} else {
fput(csock->file);
fput(isock->file);
}
return err;
case HIDPCONNDEL:
if (!capable(CAP_NET_ADMIN))
return -EACCES;
if (copy_from_user(&cd, argp, sizeof(cd)))
return -EFAULT;
return hidp_del_connection(&cd);
case HIDPGETCONNLIST:
if (copy_from_user(&cl, argp, sizeof(cl)))
return -EFAULT;
if (cl.cnum <= 0)
return -EINVAL;
err = hidp_get_connlist(&cl);
if (!err && copy_to_user(argp, &cl, sizeof(cl)))
return -EFAULT;
return err;
case HIDPGETCONNINFO:
if (copy_from_user(&ci, argp, sizeof(ci)))
return -EFAULT;
err = hidp_get_conninfo(&ci);
if (!err && copy_to_user(argp, &ci, sizeof(ci)))
return -EFAULT;
return err;
}
return -EINVAL;
}
static struct proto_ops hidp_sock_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.release = hidp_sock_release,
.ioctl = hidp_sock_ioctl,
.bind = sock_no_bind,
.getname = sock_no_getname,
.sendmsg = sock_no_sendmsg,
.recvmsg = sock_no_recvmsg,
.poll = sock_no_poll,
.listen = sock_no_listen,
.shutdown = sock_no_shutdown,
.setsockopt = sock_no_setsockopt,
.getsockopt = sock_no_getsockopt,
.connect = sock_no_connect,
.socketpair = sock_no_socketpair,
.accept = sock_no_accept,
.mmap = sock_no_mmap
};
static int hidp_sock_create(struct socket *sock, int protocol)
{
struct sock *sk;
BT_DBG("sock %p", sock);
if (sock->type != SOCK_RAW)
return -ESOCKTNOSUPPORT;
if (!(sk = bt_sock_alloc(sock, PF_BLUETOOTH, 0, GFP_KERNEL)))
return -ENOMEM;
sk_set_owner(sk, THIS_MODULE);
sock->ops = &hidp_sock_ops;
sock->state = SS_UNCONNECTED;
sk->sk_destruct = NULL;
sk->sk_protocol = protocol;
return 0;
}
static struct net_proto_family hidp_sock_family_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.create = hidp_sock_create
};
int __init hidp_init_sockets(void)
{
int err;
err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
if (err < 0)
BT_ERR("Can't register HIDP socket");
return err;
}
void __exit hidp_cleanup_sockets(void)
{
if (bt_sock_unregister(BTPROTO_HIDP) < 0)
BT_ERR("Can't unregister HIDP socket");
}
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