Bluetooth: Use hci_recv_stream_fragment() in UART driver

Use the new hci_recv_stream_fragment() to reassembly incoming UART
streams.

Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>
Tested-by: Ville Tervo <ville.tervo@nokia.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>

1 files changed, 2 insertions, 101 deletions

diff --git a/drivers/bluetooth/hci_h4.c b/drivers/bluetooth/hci_h4.c
index 3f038f5308a4..b2cf50e3cafb 100644
--- a/drivers/bluetooth/hci_h4.c
+++ b/drivers/bluetooth/hci_h4.c
@@ -151,107 +151,8 @@ static inline int h4_check_data_len(struct h4_struct *h4, int len)
 /* Recv data */
 static int h4_recv(struct hci_uart *hu, void *data, int count)
 {
-        struct h4_struct *h4 = hu->priv;
-        register char *ptr;
-        struct hci_event_hdr *eh;
-        struct hci_acl_hdr   *ah;
-        struct hci_sco_hdr   *sh;
-        register int len, type, dlen;
-
-        BT_DBG("hu %p count %d rx_state %ld rx_count %ld", 
-                        hu, count, h4->rx_state, h4->rx_count);
-
-        ptr = data;
-        while (count) {
-                if (h4->rx_count) {
-                        len = min_t(unsigned int, h4->rx_count, count);
-                        memcpy(skb_put(h4->rx_skb, len), ptr, len);
-                        h4->rx_count -= len; count -= len; ptr += len;
-
-                        if (h4->rx_count)
-                                continue;
-
-                        switch (h4->rx_state) {
-                        case H4_W4_DATA:
-                                BT_DBG("Complete data");
-
-                                hci_recv_frame(h4->rx_skb);
-
-                                h4->rx_state = H4_W4_PACKET_TYPE;
-                                h4->rx_skb = NULL;
-                                continue;
-
-                        case H4_W4_EVENT_HDR:
-                                eh = hci_event_hdr(h4->rx_skb);
-
-                                BT_DBG("Event header: evt 0x%2.2x plen %d", eh->evt, eh->plen);
-
-                                h4_check_data_len(h4, eh->plen);
-                                continue;
-
-                        case H4_W4_ACL_HDR:
-                                ah = hci_acl_hdr(h4->rx_skb);
-                                dlen = __le16_to_cpu(ah->dlen);
-
-                                BT_DBG("ACL header: dlen %d", dlen);
-
-                                h4_check_data_len(h4, dlen);
-                                continue;
-
-                        case H4_W4_SCO_HDR:
-                                sh = hci_sco_hdr(h4->rx_skb);
-
-                                BT_DBG("SCO header: dlen %d", sh->dlen);
-
-                                h4_check_data_len(h4, sh->dlen);
-                                continue;
-                        }
-                }
-
-                /* H4_W4_PACKET_TYPE */
-                switch (*ptr) {
-                case HCI_EVENT_PKT:
-                        BT_DBG("Event packet");
-                        h4->rx_state = H4_W4_EVENT_HDR;
-                        h4->rx_count = HCI_EVENT_HDR_SIZE;
-                        type = HCI_EVENT_PKT;
-                        break;
-
-                case HCI_ACLDATA_PKT:
-                        BT_DBG("ACL packet");
-                        h4->rx_state = H4_W4_ACL_HDR;
-                        h4->rx_count = HCI_ACL_HDR_SIZE;
-                        type = HCI_ACLDATA_PKT;
-                        break;
-
-                case HCI_SCODATA_PKT:
-                        BT_DBG("SCO packet");
-                        h4->rx_state = H4_W4_SCO_HDR;
-                        h4->rx_count = HCI_SCO_HDR_SIZE;
-                        type = HCI_SCODATA_PKT;
-                        break;
-
-                default:
-                        BT_ERR("Unknown HCI packet type %2.2x", (__u8)*ptr);
-                        hu->hdev->stat.err_rx++;
-                        ptr++; count--;
-                        continue;
-                };
-
-                ptr++; count--;
-
-                /* Allocate packet */
-                h4->rx_skb = bt_skb_alloc(HCI_MAX_FRAME_SIZE, GFP_ATOMIC);
-                if (!h4->rx_skb) {
-                        BT_ERR("Can't allocate mem for new packet");
-                        h4->rx_state = H4_W4_PACKET_TYPE;
-                        h4->rx_count = 0;
-                        return -ENOMEM;
-                }
-
-                h4->rx_skb->dev = (void *) hu->hdev;
-                bt_cb(h4->rx_skb)->pkt_type = type;
-        }
+        if (hci_recv_stream_fragment(hu->hdev, data, count) < 0)
+                BT_ERR("Frame Reassembly Failed");
 
         return count;
 }