This commands basically retrieve the supported PHYs of the
LE controller. 1M would be supported by default. Other PHYs
are supported based on the local LE features.
@ MGMT Command: Get PHY Configuration (0x0044) plen 0
@ MGMT Event: Command Complete (0x0001) plen 7
Get PHY Configuration (0x0044) plen 4
Status: Success (0x00)
Supported PHYs: 0x003f
1MTX
1MRX
2MTX
2MRX
CODEDTX
CODEDRX
Selected PHYs: 0x003f
1MTX
1MRX
2MTX
2MRX
CODEDTX
CODEDRX
Signed-off-by: Jaganath Kanakkassery <jaganathx.kanakkassery@xxxxxxxxx>
---
include/net/bluetooth/hci.h | 2 ++
include/net/bluetooth/mgmt.h | 14 ++++++++
net/bluetooth/mgmt.c | 77 ++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 93 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index c4105e6..93164af 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -406,6 +406,8 @@ enum {
#define HCI_LE_PING 0x10
#define HCI_LE_DATA_LEN_EXT 0x20
#define HCI_LE_EXT_SCAN_POLICY 0x80
+#define HCI_LE_PHY_2M 0x01
+#define HCI_LE_PHY_CODED 0x08
#define HCI_LE_CHAN_SEL_ALG2 0x40
/* Connection modes */
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index e7303ee..da9675c 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -604,6 +604,20 @@ struct mgmt_cp_set_appearance {
} __packed;
#define MGMT_SET_APPEARANCE_SIZE 2
+#define MGMT_OP_GET_PHY_CONFIGURATION 0x0044
+#define MGMT_GET_PHY_CONFIGURATION_SIZE 0
+struct mgmt_rp_get_phy_confguration {
+ __le16 supported_phys;
+ __le16 selected_phys;
+} __packed;
+
+#define MGMT_PHY_LE_1M_TX 0x0001
+#define MGMT_PHY_LE_1M_RX 0x0002
+#define MGMT_PHY_LE_2M_TX 0x0004
+#define MGMT_PHY_LE_2M_RX 0x0008
+#define MGMT_PHY_LE_CODED_TX 0x0010
+#define MGMT_PHY_LE_CODED_RX 0x0020
+
#define MGMT_EV_CMD_COMPLETE 0x0001
struct mgmt_ev_cmd_complete {
__le16 opcode;
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 8a80d48..29f2d6a 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -725,6 +725,56 @@ static u32 get_current_settings(struct hci_dev *hdev)
return settings;
}
+static u16 get_supported_phys(struct hci_dev *hdev)
+{
+ u16 supported_phys = 0;
+
+ if (!lmp_le_capable(hdev))
+ return 0;
+
+ supported_phys |= MGMT_PHY_LE_1M_TX;
+ supported_phys |= MGMT_PHY_LE_1M_RX;
+
+ if (hdev->le_features[1] & HCI_LE_PHY_2M) {
+ supported_phys |= MGMT_PHY_LE_2M_TX;
+ supported_phys |= MGMT_PHY_LE_2M_RX;
+ }
+ if (hdev->le_features[1] & HCI_LE_PHY_CODED) {
+ supported_phys |= MGMT_PHY_LE_CODED_TX;
+ supported_phys |= MGMT_PHY_LE_CODED_RX;
+ }
+
+ return supported_phys;
+}
+
+static u16 get_selected_phys(struct hci_dev *hdev)
+{
+ u16 selected_phys = 0;
+
+ if (!lmp_le_capable(hdev))
+ return 0;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_PHY_1M_TX))
+ selected_phys |= MGMT_PHY_LE_1M_TX;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_PHY_1M_RX))
+ selected_phys |= MGMT_PHY_LE_1M_RX;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_PHY_2M_TX))
+ selected_phys |= MGMT_PHY_LE_2M_TX;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_PHY_2M_RX))
+ selected_phys |= MGMT_PHY_LE_2M_RX;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_PHY_CODED_TX))
+ selected_phys |= MGMT_PHY_LE_CODED_TX;
+
+ if (hci_dev_test_flag(hdev, HCI_LE_PHY_CODED_RX))
+ selected_phys |= MGMT_PHY_LE_CODED_RX;
+
+ return selected_phys;
+}
+
static struct mgmt_pending_cmd *pending_find(u16 opcode, struct hci_dev *hdev)
{
return mgmt_pending_find(HCI_CHANNEL_CONTROL, opcode, hdev);
@@ -3184,6 +3234,32 @@ static int set_appearance(struct sock *sk, struct hci_dev *hdev, void *data,
return err;
}
+static int get_phy_configuration(struct sock *sk, struct hci_dev *hdev,
+ void *data, u16 len)
+{
+ struct mgmt_rp_get_phy_confguration rp;
+ u8 status;
+
+ BT_DBG("sock %p %s", sk, hdev->name);
+
+ status = mgmt_le_support(hdev);
+ if (status)
+ return mgmt_cmd_status(sk, hdev->id,
+ MGMT_OP_GET_PHY_CONFIGURATION, status);
+
+ hci_dev_lock(hdev);
+
+ memset(&rp, 0, sizeof(rp));
+
+ rp.supported_phys = cpu_to_le16(get_supported_phys(hdev));
+ rp.selected_phys = cpu_to_le16(get_selected_phys(hdev));
+
+ hci_dev_unlock(hdev);
+
+ return mgmt_cmd_complete(sk, hdev->id, MGMT_OP_GET_PHY_CONFIGURATION, 0,
+ &rp, sizeof(rp));
+}
+
static void read_local_oob_data_complete(struct hci_dev *hdev, u8 status,
u16 opcode, struct sk_buff *skb)
{
@@ -6544,6 +6620,7 @@ static const struct hci_mgmt_handler mgmt_handlers[] = {
{ read_ext_controller_info,MGMT_READ_EXT_INFO_SIZE,
HCI_MGMT_UNTRUSTED },
{ set_appearance, MGMT_SET_APPEARANCE_SIZE },
+ { get_phy_configuration, MGMT_GET_PHY_CONFIGURATION_SIZE },
};
void mgmt_index_added(struct hci_dev *hdev)
--
2.7.4
--
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