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Creation of Cybook 2416 (actually Gen4) repository

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This commit is contained in:
mlt
2009-12-18 17:10:00 +00:00
committed by godzil
commit 76f20f4d40
13791 changed files with 6812321 additions and 0 deletions
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12
net/bluetooth/hidp/Kconfig Normal file
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@@ -0,0 +1,12 @@
config BT_HIDP
tristate "HIDP protocol support"
depends on BT && BT_L2CAP && INPUT
select HID
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).

7
net/bluetooth/hidp/Makefile Normal file
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@@ -0,0 +1,7 @@
#
# Makefile for the Linux Bluetooth HIDP layer
#
obj-$(CONFIG_BT_HIDP) += hidp.o
hidp-objs := core.o sock.o

973
net/bluetooth/hidp/core.c Normal file
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@@ -0,0 +1,973 @@
/*
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/module.h>
#include <linux/types.h>
#include <linux/errno.h>
#include <linux/kernel.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 <linux/wait.h>
#include <net/sock.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <net/bluetooth/bluetooth.h>
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include "hidp.h"
#ifndef CONFIG_BT_HIDP_DEBUG
#undef BT_DBG
#define BT_DBG(D...)
#endif
#define VERSION "1.2"
static DECLARE_RWSEM(hidp_session_sem);
static LIST_HEAD(hidp_session_list);
static unsigned char hidp_keycode[256] = {
0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
115,114, 0, 0, 0,121, 0, 89, 93,124, 92, 94, 95, 0, 0, 0,
122,123, 90, 91, 85, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
150,158,159,128,136,177,178,176,142,152,173,140
};
static unsigned char hidp_mkeyspat[] = { 0x01, 0x01, 0x01, 0x01, 0x01, 0x01 };
static struct hidp_session *__hidp_get_session(bdaddr_t *bdaddr)
{
struct hidp_session *session;
struct list_head *p;
BT_DBG("");
list_for_each(p, &hidp_session_list) {
session = list_entry(p, struct hidp_session, list);
if (!bacmp(bdaddr, &session->bdaddr))
return session;
}
return NULL;
}
static void __hidp_link_session(struct hidp_session *session)
{
__module_get(THIS_MODULE);
list_add(&session->list, &hidp_session_list);
}
static void __hidp_unlink_session(struct hidp_session *session)
{
list_del(&session->list);
module_put(THIS_MODULE);
}
static void __hidp_copy_session(struct hidp_session *session, struct hidp_conninfo *ci)
{
bacpy(&ci->bdaddr, &session->bdaddr);
ci->flags = session->flags;
ci->state = session->state;
ci->vendor = 0x0000;
ci->product = 0x0000;
ci->version = 0x0000;
memset(ci->name, 0, 128);
if (session->input) {
ci->vendor = session->input->id.vendor;
ci->product = session->input->id.product;
ci->version = session->input->id.version;
if (session->input->name)
strncpy(ci->name, session->input->name, 128);
else
strncpy(ci->name, "HID Boot Device", 128);
}
if (session->hid) {
ci->vendor = session->hid->vendor;
ci->product = session->hid->product;
ci->version = session->hid->version;
strncpy(ci->name, session->hid->name, 128);
}
}
static inline int hidp_queue_event(struct hidp_session *session, struct input_dev *dev,
unsigned int type, unsigned int code, int value)
{
unsigned char newleds;
struct sk_buff *skb;
BT_DBG("session %p type %d code %d value %d", session, type, code, value);
if (type != EV_LED)
return -1;
newleds = (!!test_bit(LED_KANA, dev->led) << 3) |
(!!test_bit(LED_COMPOSE, dev->led) << 3) |
(!!test_bit(LED_SCROLLL, dev->led) << 2) |
(!!test_bit(LED_CAPSL, dev->led) << 1) |
(!!test_bit(LED_NUML, dev->led));
if (session->leds == newleds)
return 0;
session->leds = newleds;
if (!(skb = alloc_skb(3, GFP_ATOMIC))) {
BT_ERR("Can't allocate memory for new frame");
return -ENOMEM;
}
*skb_put(skb, 1) = HIDP_TRANS_DATA | HIDP_DATA_RTYPE_OUPUT;
*skb_put(skb, 1) = 0x01;
*skb_put(skb, 1) = newleds;
skb_queue_tail(&session->intr_transmit, skb);
hidp_schedule(session);
return 0;
}
static int hidp_hidinput_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct hid_device *hid = dev->private;
struct hidp_session *session = hid->driver_data;
return hidp_queue_event(session, dev, type, code, value);
}
static int hidp_input_event(struct input_dev *dev, unsigned int type, unsigned int code, int value)
{
struct hidp_session *session = dev->private;
return hidp_queue_event(session, dev, type, code, value);
}
static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
{
struct input_dev *dev = session->input;
unsigned char *keys = session->keys;
unsigned char *udata = skb->data + 1;
signed char *sdata = skb->data + 1;
int i, size = skb->len - 1;
switch (skb->data[0]) {
case 0x01: /* Keyboard report */
for (i = 0; i < 8; i++)
input_report_key(dev, hidp_keycode[i + 224], (udata[0] >> i) & 1);
/* If all the key codes have been set to 0x01, it means
* too many keys were pressed at the same time. */
if (!memcmp(udata + 2, hidp_mkeyspat, 6))
break;
for (i = 2; i < 8; i++) {
if (keys[i] > 3 && memscan(udata + 2, keys[i], 6) == udata + 8) {
if (hidp_keycode[keys[i]])
input_report_key(dev, hidp_keycode[keys[i]], 0);
else
BT_ERR("Unknown key (scancode %#x) released.", keys[i]);
}
if (udata[i] > 3 && memscan(keys + 2, udata[i], 6) == keys + 8) {
if (hidp_keycode[udata[i]])
input_report_key(dev, hidp_keycode[udata[i]], 1);
else
BT_ERR("Unknown key (scancode %#x) pressed.", udata[i]);
}
}
memcpy(keys, udata, 8);
break;
case 0x02: /* Mouse report */
input_report_key(dev, BTN_LEFT, sdata[0] & 0x01);
input_report_key(dev, BTN_RIGHT, sdata[0] & 0x02);
input_report_key(dev, BTN_MIDDLE, sdata[0] & 0x04);
input_report_key(dev, BTN_SIDE, sdata[0] & 0x08);
input_report_key(dev, BTN_EXTRA, sdata[0] & 0x10);
input_report_rel(dev, REL_X, sdata[1]);
input_report_rel(dev, REL_Y, sdata[2]);
if (size > 3)
input_report_rel(dev, REL_WHEEL, sdata[3]);
break;
}
input_sync(dev);
}
static inline int hidp_queue_report(struct hidp_session *session, unsigned char *data, int size)
{
struct sk_buff *skb;
BT_DBG("session %p hid %p data %p size %d", session, device, data, size);
if (!(skb = alloc_skb(size + 1, GFP_ATOMIC))) {
BT_ERR("Can't allocate memory for new frame");
return -ENOMEM;
}
*skb_put(skb, 1) = 0xa2;
if (size > 0)
memcpy(skb_put(skb, size), data, size);
skb_queue_tail(&session->intr_transmit, skb);
hidp_schedule(session);
return 0;
}
static int hidp_send_report(struct hidp_session *session, struct hid_report *report)
{
unsigned char buf[32];
int rsize;
rsize = ((report->size - 1) >> 3) + 1 + (report->id > 0);
if (rsize > sizeof(buf))
return -EIO;
hid_output_report(report, buf);
return hidp_queue_report(session, buf, rsize);
}
static void hidp_idle_timeout(unsigned long arg)
{
struct hidp_session *session = (struct hidp_session *) arg;
atomic_inc(&session->terminate);
hidp_schedule(session);
}
static inline void hidp_set_timer(struct hidp_session *session)
{
if (session->idle_to > 0)
mod_timer(&session->timer, jiffies + HZ * session->idle_to);
}
static inline void hidp_del_timer(struct hidp_session *session)
{
if (session->idle_to > 0)
del_timer(&session->timer);
}
static int __hidp_send_ctrl_message(struct hidp_session *session,
unsigned char hdr, unsigned char *data, int size)
{
struct sk_buff *skb;
BT_DBG("session %p data %p size %d", session, data, size);
if (!(skb = alloc_skb(size + 1, GFP_ATOMIC))) {
BT_ERR("Can't allocate memory for new frame");
return -ENOMEM;
}
*skb_put(skb, 1) = hdr;
if (data && size > 0)
memcpy(skb_put(skb, size), data, size);
skb_queue_tail(&session->ctrl_transmit, skb);
return 0;
}
static inline int hidp_send_ctrl_message(struct hidp_session *session,
unsigned char hdr, unsigned char *data, int size)
{
int err;
err = __hidp_send_ctrl_message(session, hdr, data, size);
hidp_schedule(session);
return err;
}
static inline void hidp_process_handshake(struct hidp_session *session, unsigned char param)
{
BT_DBG("session %p param 0x%02x", session, param);
switch (param) {
case HIDP_HSHK_SUCCESSFUL:
/* FIXME: Call into SET_ GET_ handlers here */
break;
case HIDP_HSHK_NOT_READY:
case HIDP_HSHK_ERR_INVALID_REPORT_ID:
case HIDP_HSHK_ERR_UNSUPPORTED_REQUEST:
case HIDP_HSHK_ERR_INVALID_PARAMETER:
/* FIXME: Call into SET_ GET_ handlers here */
break;
case HIDP_HSHK_ERR_UNKNOWN:
break;
case HIDP_HSHK_ERR_FATAL:
/* Device requests a reboot, as this is the only way this error
* can be recovered. */
__hidp_send_ctrl_message(session,
HIDP_TRANS_HID_CONTROL | HIDP_CTRL_SOFT_RESET, NULL, 0);
break;
default:
__hidp_send_ctrl_message(session,
HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_INVALID_PARAMETER, NULL, 0);
break;
}
}
static inline void hidp_process_hid_control(struct hidp_session *session, unsigned char param)
{
BT_DBG("session %p param 0x%02x", session, param);
switch (param) {
case HIDP_CTRL_NOP:
break;
case HIDP_CTRL_VIRTUAL_CABLE_UNPLUG:
/* Flush the transmit queues */
skb_queue_purge(&session->ctrl_transmit);
skb_queue_purge(&session->intr_transmit);
/* Kill session thread */
atomic_inc(&session->terminate);
break;
case HIDP_CTRL_HARD_RESET:
case HIDP_CTRL_SOFT_RESET:
case HIDP_CTRL_SUSPEND:
case HIDP_CTRL_EXIT_SUSPEND:
/* FIXME: We have to parse these and return no error */
break;
default:
__hidp_send_ctrl_message(session,
HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_INVALID_PARAMETER, NULL, 0);
break;
}
}
static inline void hidp_process_data(struct hidp_session *session, struct sk_buff *skb, unsigned char param)
{
BT_DBG("session %p skb %p len %d param 0x%02x", session, skb, skb->len, param);
switch (param) {
case HIDP_DATA_RTYPE_INPUT:
hidp_set_timer(session);
if (session->input)
hidp_input_report(session, skb);
if (session->hid)
hid_input_report(session->hid, HID_INPUT_REPORT, skb->data, skb->len, 0);
break;
case HIDP_DATA_RTYPE_OTHER:
case HIDP_DATA_RTYPE_OUPUT:
case HIDP_DATA_RTYPE_FEATURE:
break;
default:
__hidp_send_ctrl_message(session,
HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_INVALID_PARAMETER, NULL, 0);
}
}
static inline void hidp_recv_ctrl_frame(struct hidp_session *session, struct sk_buff *skb)
{
unsigned char hdr, type, param;
BT_DBG("session %p skb %p len %d", session, skb, skb->len);
hdr = skb->data[0];
skb_pull(skb, 1);
type = hdr & HIDP_HEADER_TRANS_MASK;
param = hdr & HIDP_HEADER_PARAM_MASK;
switch (type) {
case HIDP_TRANS_HANDSHAKE:
hidp_process_handshake(session, param);
break;
case HIDP_TRANS_HID_CONTROL:
hidp_process_hid_control(session, param);
break;
case HIDP_TRANS_DATA:
hidp_process_data(session, skb, param);
break;
default:
__hidp_send_ctrl_message(session,
HIDP_TRANS_HANDSHAKE | HIDP_HSHK_ERR_UNSUPPORTED_REQUEST, NULL, 0);
break;
}
kfree_skb(skb);
}
static inline void hidp_recv_intr_frame(struct hidp_session *session, struct sk_buff *skb)
{
unsigned char hdr;
BT_DBG("session %p skb %p len %d", session, skb, skb->len);
hdr = skb->data[0];
skb_pull(skb, 1);
if (hdr == (HIDP_TRANS_DATA | HIDP_DATA_RTYPE_INPUT)) {
hidp_set_timer(session);
if (session->input)
hidp_input_report(session, skb);
if (session->hid) {
hid_input_report(session->hid, HID_INPUT_REPORT, skb->data, skb->len, 1);
BT_DBG("report len %d", skb->len);
}
} else {
BT_DBG("Unsupported protocol header 0x%02x", hdr);
}
kfree_skb(skb);
}
static int hidp_send_frame(struct socket *sock, unsigned char *data, int len)
{
struct kvec iv = { data, len };
struct msghdr msg;
BT_DBG("sock %p data %p len %d", sock, data, len);
if (!len)
return 0;
memset(&msg, 0, sizeof(msg));
return kernel_sendmsg(sock, &msg, &iv, 1, len);
}
static void hidp_process_transmit(struct hidp_session *session)
{
struct sk_buff *skb;
BT_DBG("session %p", session);
while ((skb = skb_dequeue(&session->ctrl_transmit))) {
if (hidp_send_frame(session->ctrl_sock, skb->data, skb->len) < 0) {
skb_queue_head(&session->ctrl_transmit, skb);
break;
}
hidp_set_timer(session);
kfree_skb(skb);
}
while ((skb = skb_dequeue(&session->intr_transmit))) {
if (hidp_send_frame(session->intr_sock, skb->data, skb->len) < 0) {
skb_queue_head(&session->intr_transmit, skb);
break;
}
hidp_set_timer(session);
kfree_skb(skb);
}
}
static int hidp_session(void *arg)
{
struct hidp_session *session = arg;
struct sock *ctrl_sk = session->ctrl_sock->sk;
struct sock *intr_sk = session->intr_sock->sk;
struct sk_buff *skb;
int vendor = 0x0000, product = 0x0000;
wait_queue_t ctrl_wait, intr_wait;
BT_DBG("session %p", session);
if (session->input) {
vendor = session->input->id.vendor;
product = session->input->id.product;
}
if (session->hid) {
vendor = session->hid->vendor;
product = session->hid->product;
}
daemonize("khidpd_%04x%04x", vendor, product);
set_user_nice(current, -15);
current->flags |= PF_NOFREEZE;
init_waitqueue_entry(&ctrl_wait, current);
init_waitqueue_entry(&intr_wait, current);
add_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
add_wait_queue(intr_sk->sk_sleep, &intr_wait);
while (!atomic_read(&session->terminate)) {
set_current_state(TASK_INTERRUPTIBLE);
if (ctrl_sk->sk_state != BT_CONNECTED || intr_sk->sk_state != BT_CONNECTED)
break;
while ((skb = skb_dequeue(&ctrl_sk->sk_receive_queue))) {
skb_orphan(skb);
hidp_recv_ctrl_frame(session, skb);
}
while ((skb = skb_dequeue(&intr_sk->sk_receive_queue))) {
skb_orphan(skb);
hidp_recv_intr_frame(session, skb);
}
hidp_process_transmit(session);
schedule();
}
set_current_state(TASK_RUNNING);
remove_wait_queue(intr_sk->sk_sleep, &intr_wait);
remove_wait_queue(ctrl_sk->sk_sleep, &ctrl_wait);
down_write(&hidp_session_sem);
hidp_del_timer(session);
fput(session->intr_sock->file);
wait_event_timeout(*(ctrl_sk->sk_sleep),
(ctrl_sk->sk_state == BT_CLOSED), msecs_to_jiffies(500));
fput(session->ctrl_sock->file);
__hidp_unlink_session(session);
if (session->input) {
input_unregister_device(session->input);
session->input = NULL;
}
if (session->hid) {
if (session->hid->claimed & HID_CLAIMED_INPUT)
hidinput_disconnect(session->hid);
hid_free_device(session->hid);
}
up_write(&hidp_session_sem);
kfree(session);
return 0;
}
static struct device *hidp_get_device(struct hidp_session *session)
{
bdaddr_t *src = &bt_sk(session->ctrl_sock->sk)->src;
bdaddr_t *dst = &bt_sk(session->ctrl_sock->sk)->dst;
struct hci_dev *hdev;
struct hci_conn *conn;
hdev = hci_get_route(dst, src);
if (!hdev)
return NULL;
conn = hci_conn_hash_lookup_ba(hdev, ACL_LINK, dst);
hci_dev_put(hdev);
return conn ? &conn->dev : NULL;
}
static inline void hidp_setup_input(struct hidp_session *session, struct hidp_connadd_req *req)
{
struct input_dev *input = session->input;
int i;
input->private = session;
input->name = "Bluetooth HID Boot Protocol Device";
input->id.bustype = BUS_BLUETOOTH;
input->id.vendor = req->vendor;
input->id.product = req->product;
input->id.version = req->version;
if (req->subclass & 0x40) {
set_bit(EV_KEY, input->evbit);
set_bit(EV_LED, input->evbit);
set_bit(EV_REP, input->evbit);
set_bit(LED_NUML, input->ledbit);
set_bit(LED_CAPSL, input->ledbit);
set_bit(LED_SCROLLL, input->ledbit);
set_bit(LED_COMPOSE, input->ledbit);
set_bit(LED_KANA, input->ledbit);
for (i = 0; i < sizeof(hidp_keycode); i++)
set_bit(hidp_keycode[i], input->keybit);
clear_bit(0, input->keybit);
}
if (req->subclass & 0x80) {
input->evbit[0] = BIT(EV_KEY) | BIT(EV_REL);
input->keybit[LONG(BTN_MOUSE)] = BIT(BTN_LEFT) | BIT(BTN_RIGHT) | BIT(BTN_MIDDLE);
input->relbit[0] = BIT(REL_X) | BIT(REL_Y);
input->keybit[LONG(BTN_MOUSE)] |= BIT(BTN_SIDE) | BIT(BTN_EXTRA);
input->relbit[0] |= BIT(REL_WHEEL);
}
input->cdev.dev = hidp_get_device(session);
input->event = hidp_input_event;
input_register_device(input);
}
static int hidp_open(struct hid_device *hid)
{
return 0;
}
static void hidp_close(struct hid_device *hid)
{
}
static const struct {
__u16 idVendor;
__u16 idProduct;
unsigned quirks;
} hidp_blacklist[] = {
/* Apple wireless Mighty Mouse */
{ 0x05ac, 0x030c, HID_QUIRK_MIGHTYMOUSE | HID_QUIRK_INVERT_HWHEEL },
{ } /* Terminating entry */
};
static void hidp_setup_quirks(struct hid_device *hid)
{
unsigned int n;
for (n = 0; hidp_blacklist[n].idVendor; n++)
if (hidp_blacklist[n].idVendor == le16_to_cpu(hid->vendor) &&
hidp_blacklist[n].idProduct == le16_to_cpu(hid->product))
hid->quirks = hidp_blacklist[n].quirks;
}
static inline void hidp_setup_hid(struct hidp_session *session, struct hidp_connadd_req *req)
{
struct hid_device *hid = session->hid;
struct hid_report *report;
bdaddr_t src, dst;
baswap(&src, &bt_sk(session->ctrl_sock->sk)->src);
baswap(&dst, &bt_sk(session->ctrl_sock->sk)->dst);
hid->driver_data = session;
hid->country = req->country;
hid->bus = BUS_BLUETOOTH;
hid->vendor = req->vendor;
hid->product = req->product;
hid->version = req->version;
strncpy(hid->name, req->name, 128);
strncpy(hid->phys, batostr(&src), 64);
strncpy(hid->uniq, batostr(&dst), 64);
hid->dev = hidp_get_device(session);
hid->hid_open = hidp_open;
hid->hid_close = hidp_close;
hid->hidinput_input_event = hidp_hidinput_event;
hidp_setup_quirks(hid);
list_for_each_entry(report, &hid->report_enum[HID_INPUT_REPORT].report_list, list)
hidp_send_report(session, report);
list_for_each_entry(report, &hid->report_enum[HID_FEATURE_REPORT].report_list, list)
hidp_send_report(session, report);
if (hidinput_connect(hid) == 0) {
hid->claimed |= HID_CLAIMED_INPUT;
hid_ff_init(hid);
}
}
int hidp_add_connection(struct hidp_connadd_req *req, struct socket *ctrl_sock, struct socket *intr_sock)
{
struct hidp_session *session, *s;
int err;
BT_DBG("");
if (bacmp(&bt_sk(ctrl_sock->sk)->src, &bt_sk(intr_sock->sk)->src) ||
bacmp(&bt_sk(ctrl_sock->sk)->dst, &bt_sk(intr_sock->sk)->dst))
return -ENOTUNIQ;
session = kzalloc(sizeof(struct hidp_session), GFP_KERNEL);
if (!session)
return -ENOMEM;
BT_DBG("rd_data %p rd_size %d", req->rd_data, req->rd_size);
if (req->rd_size > 0) {
unsigned char *buf = kmalloc(req->rd_size, GFP_KERNEL);
if (!buf) {
kfree(session);
return -ENOMEM;
}
if (copy_from_user(buf, req->rd_data, req->rd_size)) {
kfree(buf);
kfree(session);
return -EFAULT;
}
session->hid = hid_parse_report(buf, req->rd_size);
kfree(buf);
if (!session->hid) {
kfree(session);
return -EINVAL;
}
}
if (!session->hid) {
session->input = input_allocate_device();
if (!session->input) {
kfree(session);
return -ENOMEM;
}
}
down_write(&hidp_session_sem);
s = __hidp_get_session(&bt_sk(ctrl_sock->sk)->dst);
if (s && s->state == BT_CONNECTED) {
err = -EEXIST;
goto failed;
}
bacpy(&session->bdaddr, &bt_sk(ctrl_sock->sk)->dst);
session->ctrl_mtu = min_t(uint, l2cap_pi(ctrl_sock->sk)->omtu, l2cap_pi(ctrl_sock->sk)->imtu);
session->intr_mtu = min_t(uint, l2cap_pi(intr_sock->sk)->omtu, l2cap_pi(intr_sock->sk)->imtu);
BT_DBG("ctrl mtu %d intr mtu %d", session->ctrl_mtu, session->intr_mtu);
session->ctrl_sock = ctrl_sock;
session->intr_sock = intr_sock;
session->state = BT_CONNECTED;
init_timer(&session->timer);
session->timer.function = hidp_idle_timeout;
session->timer.data = (unsigned long) session;
skb_queue_head_init(&session->ctrl_transmit);
skb_queue_head_init(&session->intr_transmit);
session->flags = req->flags & (1 << HIDP_BLUETOOTH_VENDOR_ID);
session->idle_to = req->idle_to;
if (session->input)
hidp_setup_input(session, req);
if (session->hid)
hidp_setup_hid(session, req);
__hidp_link_session(session);
hidp_set_timer(session);
err = kernel_thread(hidp_session, session, CLONE_KERNEL);
if (err < 0)
goto unlink;
if (session->input) {
hidp_send_ctrl_message(session,
HIDP_TRANS_SET_PROTOCOL | HIDP_PROTO_BOOT, NULL, 0);
session->flags |= (1 << HIDP_BOOT_PROTOCOL_MODE);
session->leds = 0xff;
hidp_input_event(session->input, EV_LED, 0, 0);
}
up_write(&hidp_session_sem);
return 0;
unlink:
hidp_del_timer(session);
__hidp_unlink_session(session);
if (session->input) {
input_unregister_device(session->input);
session->input = NULL; /* don't try to free it here */
}
failed:
up_write(&hidp_session_sem);
if (session->hid)
hid_free_device(session->hid);
kfree(session->input);
kfree(session);
return err;
}
int hidp_del_connection(struct hidp_conndel_req *req)
{
struct hidp_session *session;
int err = 0;
BT_DBG("");
down_read(&hidp_session_sem);
session = __hidp_get_session(&req->bdaddr);
if (session) {
if (req->flags & (1 << HIDP_VIRTUAL_CABLE_UNPLUG)) {
hidp_send_ctrl_message(session,
HIDP_TRANS_HID_CONTROL | HIDP_CTRL_VIRTUAL_CABLE_UNPLUG, NULL, 0);
} else {
/* Flush the transmit queues */
skb_queue_purge(&session->ctrl_transmit);
skb_queue_purge(&session->intr_transmit);
/* Kill session thread */
atomic_inc(&session->terminate);
hidp_schedule(session);
}
} else
err = -ENOENT;
up_read(&hidp_session_sem);
return err;
}
int hidp_get_connlist(struct hidp_connlist_req *req)
{
struct list_head *p;
int err = 0, n = 0;
BT_DBG("");
down_read(&hidp_session_sem);
list_for_each(p, &hidp_session_list) {
struct hidp_session *session;
struct hidp_conninfo ci;
session = list_entry(p, struct hidp_session, list);
__hidp_copy_session(session, &ci);
if (copy_to_user(req->ci, &ci, sizeof(ci))) {
err = -EFAULT;
break;
}
if (++n >= req->cnum)
break;
req->ci++;
}
req->cnum = n;
up_read(&hidp_session_sem);
return err;
}
int hidp_get_conninfo(struct hidp_conninfo *ci)
{
struct hidp_session *session;
int err = 0;
down_read(&hidp_session_sem);
session = __hidp_get_session(&ci->bdaddr);
if (session)
__hidp_copy_session(session, ci);
else
err = -ENOENT;
up_read(&hidp_session_sem);
return err;
}
static int __init hidp_init(void)
{
l2cap_load();
BT_INFO("HIDP (Human Interface Emulation) ver %s", VERSION);
return hidp_init_sockets();
}
static void __exit hidp_exit(void)
{
hidp_cleanup_sockets();
}
module_init(hidp_init);
module_exit(hidp_exit);
MODULE_AUTHOR("Marcel Holtmann <marcel@holtmann.org>");
MODULE_DESCRIPTION("Bluetooth HIDP ver " VERSION);
MODULE_VERSION(VERSION);
MODULE_LICENSE("GPL");
MODULE_ALIAS("bt-proto-6");

169
net/bluetooth/hidp/hidp.h Normal file
View File

@@ -0,0 +1,169 @@
/*
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 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
struct hidp_connadd_req {
int ctrl_sock; // Connected control socket
int intr_sock; // Connteted 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_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 hid_device *hid;
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 */

308
net/bluetooth/hidp/sock.c Normal file
View File

@@ -0,0 +1,308 @@
/*
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/module.h>
#include <linux/types.h>
#include <linux/capability.h>
#include <linux/errno.h>
#include <linux/kernel.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 <linux/compat.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;
}
#ifdef CONFIG_COMPAT
struct compat_hidp_connadd_req {
int ctrl_sock; // Connected control socket
int intr_sock; // Connteted interrupt socket
__u16 parser;
__u16 rd_size;
compat_uptr_t rd_data;
__u8 country;
__u8 subclass;
__u16 vendor;
__u16 product;
__u16 version;
__u32 flags;
__u32 idle_to;
char name[128];
};
static int hidp_sock_compat_ioctl(struct socket *sock, unsigned int cmd, unsigned long arg)
{
if (cmd == HIDPGETCONNLIST) {
struct hidp_connlist_req cl;
uint32_t uci;
int err;
if (get_user(cl.cnum, (uint32_t __user *) arg) ||
get_user(uci, (u32 __user *) (arg + 4)))
return -EFAULT;
cl.ci = compat_ptr(uci);
if (cl.cnum <= 0)
return -EINVAL;
err = hidp_get_connlist(&cl);
if (!err && put_user(cl.cnum, (uint32_t __user *) arg))
err = -EFAULT;
return err;
} else if (cmd == HIDPCONNADD) {
struct compat_hidp_connadd_req ca;
struct hidp_connadd_req __user *uca;
uca = compat_alloc_user_space(sizeof(*uca));
if (copy_from_user(&ca, (void __user *) arg, sizeof(ca)))
return -EFAULT;
if (put_user(ca.ctrl_sock, &uca->ctrl_sock) ||
put_user(ca.intr_sock, &uca->intr_sock) ||
put_user(ca.parser, &uca->parser) ||
put_user(ca.rd_size, &uca->rd_size) ||
put_user(compat_ptr(ca.rd_data), &uca->rd_data) ||
put_user(ca.country, &uca->country) ||
put_user(ca.subclass, &uca->subclass) ||
put_user(ca.vendor, &uca->vendor) ||
put_user(ca.product, &uca->product) ||
put_user(ca.version, &uca->version) ||
put_user(ca.flags, &uca->flags) ||
put_user(ca.idle_to, &uca->idle_to) ||
copy_to_user(&uca->name[0], &ca.name[0], 128))
return -EFAULT;
arg = (unsigned long) uca;
/* Fall through. We don't actually write back any _changes_
to the structure anyway, so there's no need to copy back
into the original compat version */
}
return hidp_sock_ioctl(sock, cmd, arg);
}
#endif
static const struct proto_ops hidp_sock_ops = {
.family = PF_BLUETOOTH,
.owner = THIS_MODULE,
.release = hidp_sock_release,
.ioctl = hidp_sock_ioctl,
#ifdef CONFIG_COMPAT
.compat_ioctl = hidp_sock_compat_ioctl,
#endif
.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 struct proto hidp_proto = {
.name = "HIDP",
.owner = THIS_MODULE,
.obj_size = sizeof(struct bt_sock)
};
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;
sk = sk_alloc(PF_BLUETOOTH, GFP_ATOMIC, &hidp_proto, 1);
if (!sk)
return -ENOMEM;
sock_init_data(sock, sk);
sock->ops = &hidp_sock_ops;
sock->state = SS_UNCONNECTED;
sock_reset_flag(sk, SOCK_ZAPPED);
sk->sk_protocol = protocol;
sk->sk_state = BT_OPEN;
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 = proto_register(&hidp_proto, 0);
if (err < 0)
return err;
err = bt_sock_register(BTPROTO_HIDP, &hidp_sock_family_ops);
if (err < 0)
goto error;
return 0;
error:
BT_ERR("Can't register HIDP socket");
proto_unregister(&hidp_proto);
return err;
}
void __exit hidp_cleanup_sockets(void)
{
if (bt_sock_unregister(BTPROTO_HIDP) < 0)
BT_ERR("Can't unregister HIDP socket");
proto_unregister(&hidp_proto);
}