Bluetooth: Write LE Host Supported command

This patch adds a handler to Write LE Host Supported command complete
events. Once this commands has completed successfully, we should
read the extended LMP features and update the extfeatures field in
hci_dev.

Signed-off-by: Andre Guedes <andre.guedes@openbossa.org>
Signed-off-by: Gustavo F. Padovan <padovan@profusion.mobi>

2 files changed, 25 insertions, 0 deletions

diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 741a2d658ad4..ed1de1b68a30 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -654,6 +654,12 @@ struct hci_rp_read_local_oob_data {
 
 #define HCI_OP_READ_INQ_RSP_TX_POWER    0x0c58
 
+#define HCI_OP_WRITE_LE_HOST_SUPPORTED  0x0c6d
+struct hci_cp_write_le_host_supported {
+        __u8 le;
+        __u8 simul;
+} __packed;
+
 #define HCI_OP_READ_LOCAL_VERSION       0x1001
 struct hci_rp_read_local_version {
         __u8     status;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 93d528cddaa7..4ed59a8a383e 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -915,6 +915,21 @@ static void hci_cc_le_ltk_neg_reply(struct hci_dev *hdev, struct sk_buff *skb)
         hci_req_complete(hdev, HCI_OP_LE_LTK_NEG_REPLY, rp->status);
 }
 
+static inline void hci_cc_write_le_host_supported(struct hci_dev *hdev,
+                                                        struct sk_buff *skb)
+{
+        struct hci_cp_read_local_ext_features cp;
+        __u8 status = *((__u8 *) skb->data);
+
+        BT_DBG("%s status 0x%x", hdev->name, status);
+
+        if (status)
+                return;
+
+        cp.page = 0x01;
+        hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, sizeof(cp), &cp);
+}
+
 static inline void hci_cs_inquiry(struct hci_dev *hdev, __u8 status)
 {
         BT_DBG("%s status 0x%x", hdev->name, status);
@@ -1921,6 +1936,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
                 hci_cc_le_ltk_neg_reply(hdev, skb);
                 break;
 
+        case HCI_OP_WRITE_LE_HOST_SUPPORTED:
+                hci_cc_write_le_host_supported(hdev, skb);
+                break;
+
         default:
                 BT_DBG("%s opcode 0x%x", hdev->name, opcode);
                 break;