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-rw-r--r--net/bluetooth/hci_core.c8
-rw-r--r--net/bluetooth/hci_event.c18
2 files changed, 26 insertions, 0 deletions
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 8855d07534ed..9d2c9a1c552f 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -741,6 +741,12 @@ static int hci_init3_req(struct hci_request *req, unsigned long opt)
hci_req_add(req, HCI_OP_LE_READ_ADV_TX_POWER, 0, NULL);
}
+ if (hdev->commands[38] & 0x80) {
+ /* Read LE Min/Max Tx Power*/
+ hci_req_add(req, HCI_OP_LE_READ_TRANSMIT_POWER,
+ 0, NULL);
+ }
+
if (hdev->commands[26] & 0x40) {
/* Read LE White List Size */
hci_req_add(req, HCI_OP_LE_READ_WHITE_LIST_SIZE,
@@ -3660,6 +3666,8 @@ struct hci_dev *hci_alloc_dev(void)
hdev->le_num_of_adv_sets = HCI_MAX_ADV_INSTANCES;
hdev->def_multi_adv_rotation_duration = HCI_DEFAULT_ADV_DURATION;
hdev->def_le_autoconnect_timeout = HCI_LE_AUTOCONN_TIMEOUT;
+ hdev->min_le_tx_power = HCI_TX_POWER_INVALID;
+ hdev->max_le_tx_power = HCI_TX_POWER_INVALID;
hdev->rpa_timeout = HCI_DEFAULT_RPA_TIMEOUT;
hdev->discov_interleaved_timeout = DISCOV_INTERLEAVED_TIMEOUT;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index f193e73ef47c..67668be3461e 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -1202,6 +1202,20 @@ static void hci_cc_le_set_adv_set_random_addr(struct hci_dev *hdev,
hci_dev_unlock(hdev);
}
+static void hci_cc_le_read_transmit_power(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_le_read_transmit_power *rp = (void *)skb->data;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ hdev->min_le_tx_power = rp->min_le_tx_power;
+ hdev->max_le_tx_power = rp->max_le_tx_power;
+}
+
static void hci_cc_le_set_adv_enable(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 *sent, status = *((__u8 *) skb->data);
@@ -3582,6 +3596,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb,
hci_cc_le_set_adv_set_random_addr(hdev, skb);
break;
+ case HCI_OP_LE_READ_TRANSMIT_POWER:
+ hci_cc_le_read_transmit_power(hdev, skb);
+ break;
+
default:
BT_DBG("%s opcode 0x%4.4x", hdev->name, *opcode);
break;