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Diffstat (limited to 'net/bluetooth/hidp/core.c')
-rw-r--r--net/bluetooth/hidp/core.c119
1 files changed, 60 insertions, 59 deletions
diff --git a/net/bluetooth/hidp/core.c b/net/bluetooth/hidp/core.c
index 18e7f5a43dc..fc6ec1e7265 100644
--- a/net/bluetooth/hidp/core.c
+++ b/net/bluetooth/hidp/core.c
@@ -243,6 +243,39 @@ static void hidp_input_report(struct hidp_session *session, struct sk_buff *skb)
243 input_sync(dev); 243 input_sync(dev);
244} 244}
245 245
246static int __hidp_send_ctrl_message(struct hidp_session *session,
247 unsigned char hdr, unsigned char *data, int size)
248{
249 struct sk_buff *skb;
250
251 BT_DBG("session %p data %p size %d", session, data, size);
252
253 if (!(skb = alloc_skb(size + 1, GFP_ATOMIC))) {
254 BT_ERR("Can't allocate memory for new frame");
255 return -ENOMEM;
256 }
257
258 *skb_put(skb, 1) = hdr;
259 if (data && size > 0)
260 memcpy(skb_put(skb, size), data, size);
261
262 skb_queue_tail(&session->ctrl_transmit, skb);
263
264 return 0;
265}
266
267static inline int hidp_send_ctrl_message(struct hidp_session *session,
268 unsigned char hdr, unsigned char *data, int size)
269{
270 int err;
271
272 err = __hidp_send_ctrl_message(session, hdr, data, size);
273
274 hidp_schedule(session);
275
276 return err;
277}
278
246static int hidp_queue_report(struct hidp_session *session, 279static int hidp_queue_report(struct hidp_session *session,
247 unsigned char *data, int size) 280 unsigned char *data, int size)
248{ 281{
@@ -282,7 +315,9 @@ static int hidp_send_report(struct hidp_session *session, struct hid_report *rep
282 315
283static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count) 316static int hidp_output_raw_report(struct hid_device *hid, unsigned char *data, size_t count)
284{ 317{
285 if (hidp_queue_report(hid->driver_data, data, count)) 318 if (hidp_send_ctrl_message(hid->driver_data,
319 HIDP_TRANS_SET_REPORT | HIDP_DATA_RTYPE_FEATURE,
320 data, count))
286 return -ENOMEM; 321 return -ENOMEM;
287 return count; 322 return count;
288} 323}
@@ -307,39 +342,6 @@ static inline void hidp_del_timer(struct hidp_session *session)
307 del_timer(&session->timer); 342 del_timer(&session->timer);
308} 343}
309 344
310static int __hidp_send_ctrl_message(struct hidp_session *session,
311 unsigned char hdr, unsigned char *data, int size)
312{
313 struct sk_buff *skb;
314
315 BT_DBG("session %p data %p size %d", session, data, size);
316
317 if (!(skb = alloc_skb(size + 1, GFP_ATOMIC))) {
318 BT_ERR("Can't allocate memory for new frame");
319 return -ENOMEM;
320 }
321
322 *skb_put(skb, 1) = hdr;
323 if (data && size > 0)
324 memcpy(skb_put(skb, size), data, size);
325
326 skb_queue_tail(&session->ctrl_transmit, skb);
327
328 return 0;
329}
330
331static inline int hidp_send_ctrl_message(struct hidp_session *session,
332 unsigned char hdr, unsigned char *data, int size)
333{
334 int err;
335
336 err = __hidp_send_ctrl_message(session, hdr, data, size);
337
338 hidp_schedule(session);
339
340 return err;
341}
342
343static void hidp_process_handshake(struct hidp_session *session, 345static void hidp_process_handshake(struct hidp_session *session,
344 unsigned char param) 346 unsigned char param)
345{ 347{
@@ -701,29 +703,9 @@ static void hidp_close(struct hid_device *hid)
701static int hidp_parse(struct hid_device *hid) 703static int hidp_parse(struct hid_device *hid)
702{ 704{
703 struct hidp_session *session = hid->driver_data; 705 struct hidp_session *session = hid->driver_data;
704 struct hidp_connadd_req *req = session->req;
705 unsigned char *buf;
706 int ret;
707
708 buf = kmalloc(req->rd_size, GFP_KERNEL);
709 if (!buf)
710 return -ENOMEM;
711
712 if (copy_from_user(buf, req->rd_data, req->rd_size)) {
713 kfree(buf);
714 return -EFAULT;
715 }
716
717 ret = hid_parse_report(session->hid, buf, req->rd_size);
718
719 kfree(buf);
720
721 if (ret)
722 return ret;
723 706
724 session->req = NULL; 707 return hid_parse_report(session->hid, session->rd_data,
725 708 session->rd_size);
726 return 0;
727} 709}
728 710
729static int hidp_start(struct hid_device *hid) 711static int hidp_start(struct hid_device *hid)
@@ -768,12 +750,24 @@ static int hidp_setup_hid(struct hidp_session *session,
768 bdaddr_t src, dst; 750 bdaddr_t src, dst;
769 int err; 751 int err;
770 752
753 session->rd_data = kzalloc(req->rd_size, GFP_KERNEL);
754 if (!session->rd_data)
755 return -ENOMEM;
756
757 if (copy_from_user(session->rd_data, req->rd_data, req->rd_size)) {
758 err = -EFAULT;
759 goto fault;
760 }
761 session->rd_size = req->rd_size;
762
771 hid = hid_allocate_device(); 763 hid = hid_allocate_device();
772 if (IS_ERR(hid)) 764 if (IS_ERR(hid)) {
773 return PTR_ERR(hid); 765 err = PTR_ERR(hid);
766 goto fault;
767 }
774 768
775 session->hid = hid; 769 session->hid = hid;
776 session->req = req; 770
777 hid->driver_data = session; 771 hid->driver_data = session;
778 772
779 baswap(&src, &bt_sk(session->ctrl_sock->sk)->src); 773 baswap(&src, &bt_sk(session->ctrl_sock->sk)->src);
@@ -804,6 +798,10 @@ failed:
804 hid_destroy_device(hid); 798 hid_destroy_device(hid);
805 session->hid = NULL; 799 session->hid = NULL;
806 800
801fault:
802 kfree(session->rd_data);
803 session->rd_data = NULL;
804
807 return err; 805 return err;
808} 806}
809 807
@@ -898,6 +896,9 @@ unlink:
898 session->hid = NULL; 896 session->hid = NULL;
899 } 897 }
900 898
899 kfree(session->rd_data);
900 session->rd_data = NULL;
901
901purge: 902purge:
902 skb_queue_purge(&session->ctrl_transmit); 903 skb_queue_purge(&session->ctrl_transmit);
903 skb_queue_purge(&session->intr_transmit); 904 skb_queue_purge(&session->intr_transmit);