Commit 971e3a4b authored by Andre Guedes's avatar Andre Guedes Committed by Gustavo F. Padovan
Browse files

Bluetooth: Add extfeatures to struct hci_dev

This new field holds the extended LMP features value. Some LE
mechanism such as discovery procedure needs to read the extended
LMP features to work properly.
Signed-off-by: default avatarAndre Guedes <>
Signed-off-by: default avatarGustavo F. Padovan <>
parent 02f1b641
......@@ -216,6 +216,7 @@ enum {
#define LMP_LSTO 0x01
#define LMP_INQ_TX_PWR 0x02
#define LMP_EXTFEATURES 0x80
/* Connection modes */
#define HCI_CM_ACTIVE 0x0000
......@@ -676,6 +677,9 @@ struct hci_rp_read_local_features {
} __packed;
struct hci_cp_read_local_ext_features {
__u8 page;
} __packed;
struct hci_rp_read_local_ext_features {
__u8 status;
__u8 page;
......@@ -113,6 +113,7 @@ struct hci_dev {
__u8 major_class;
__u8 minor_class;
__u8 features[8];
__u8 extfeatures[8];
__u8 commands[64];
__u8 ssp_mode;
__u8 hci_ver;
......@@ -542,6 +542,14 @@ static void hci_setup(struct hci_dev *hdev)
if (hdev->features[7] & LMP_INQ_TX_PWR)
hci_send_cmd(hdev, HCI_OP_READ_INQ_RSP_TX_POWER, 0, NULL);
if (hdev->features[7] & LMP_EXTFEATURES) {
struct hci_cp_read_local_ext_features cp; = 0x01;
hci_send_cmd(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES,
sizeof(cp), &cp);
static void hci_cc_read_local_version(struct hci_dev *hdev, struct sk_buff *skb)
......@@ -658,6 +666,21 @@ static void hci_cc_read_local_features(struct hci_dev *hdev, struct sk_buff *skb
hdev->features[6], hdev->features[7]);
static void hci_cc_read_local_ext_features(struct hci_dev *hdev,
struct sk_buff *skb)
struct hci_rp_read_local_ext_features *rp = (void *) skb->data;
BT_DBG("%s status 0x%x", hdev->name, rp->status);
if (rp->status)
memcpy(hdev->extfeatures, rp->features, 8);
hci_req_complete(hdev, HCI_OP_READ_LOCAL_EXT_FEATURES, rp->status);
static void hci_cc_read_buffer_size(struct hci_dev *hdev, struct sk_buff *skb)
struct hci_rp_read_buffer_size *rp = (void *) skb->data;
......@@ -1826,6 +1849,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_read_local_features(hdev, skb);
hci_cc_read_local_ext_features(hdev, skb);
hci_cc_read_buffer_size(hdev, skb);
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