From b7c23df85b6a1c3bcfb591cfa938d341fc3a556e Mon Sep 17 00:00:00 2001
From: Jaganath Kanakkassery <jaganath.k.os@gmail.com>
Date: Thu, 19 Jul 2018 17:09:36 +0530
Subject: Bluetooth: Implement PHY changed event
This defines and implement phy changed event and send it to user
whenever selected PHYs changes using SET_PHY_CONFIGURATION.
This will be also trigerred when BREDR pkt_type is changed using
the legacy ioctl HCISETPTYPE.
@ MGMT Command: Set PHY Configuration (0x0045) plen 4
Selected PHYs: 0x7fff
BR 1M 1SLOT
BR 1M 3SLOT
BR 1M 5SLOT
EDR 2M 1SLOT
EDR 2M 3SLOT
EDR 2M 5SLOT
EDR 3M 1SLOT
EDR 3M 3SLOT
EDR 3M 5SLOT
LE 1M TX
LE 1M RX
LE 2M TX
LE 2M RX
LE CODED TX
LE CODED RX
< HCI Command: LE Set Default PHY (0x08|0x0031) plen 3
All PHYs preference: 0x00
TX PHYs preference: 0x07
LE 1M
LE 2M
LE Coded
RX PHYs preference: 0x07
LE 1M
LE 2M
LE Coded
> HCI Event: Command Complete (0x0e) plen 4
LE Set Default PHY (0x08|0x0031) ncmd 1
Status: Success (0x00)
@ MGMT Event: Command Complete (0x0001) plen 3
Set PHY Configuration (0x0045) plen 0
Status: Success (0x00)
@ MGMT Event: PHY Configuration Changed (0x0026) plen 4
Selected PHYs: 0x7fff
BR 1M 1SLOT
BR 1M 3SLOT
BR 1M 5SLOT
EDR 2M 1SLOT
EDR 2M 3SLOT
EDR 2M 5SLOT
EDR 3M 1SLOT
EDR 3M 3SLOT
EDR 3M 5SLOT
LE 1M TX
LE 1M RX
LE 2M TX
LE 2M RX
LE CODED TX
LE CODED RX
Signed-off-by: Jaganath Kanakkassery <jaganathx.kanakkassery@intel.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
---
net/bluetooth/mgmt.c | 22 +++++++++++++++++++++-
1 file changed, 21 insertions(+), 1 deletion(-)
(limited to 'net/bluetooth/mgmt.c')
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 7cd6a37a63ee..1867aadc5061 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -3328,6 +3328,18 @@ static int get_phy_configuration(struct sock *sk, struct hci_dev *hdev,
&rp, sizeof(rp));
}
+int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip)
+{
+ struct mgmt_ev_phy_configuration_changed ev;
+
+ memset(&ev, 0, sizeof(ev));
+
+ ev.selected_phys = cpu_to_le32(get_selected_phys(hdev));
+
+ return mgmt_event(MGMT_EV_PHY_CONFIGURATION_CHANGED, hdev, &ev,
+ sizeof(ev), skip);
+}
+
static void set_default_phy_complete(struct hci_dev *hdev, u8 status,
u16 opcode, struct sk_buff *skb)
{
@@ -3352,6 +3364,8 @@ static void set_default_phy_complete(struct hci_dev *hdev, u8 status,
mgmt_cmd_complete(cmd->sk, hdev->id,
MGMT_OP_SET_PHY_CONFIGURATION, 0,
NULL, 0);
+
+ mgmt_phy_configuration_changed(hdev, cmd->sk);
}
mgmt_pending_remove(cmd);
@@ -3369,6 +3383,7 @@ static int set_phy_configuration(struct sock *sk, struct hci_dev *hdev,
struct hci_request req;
u32 selected_phys, configurable_phys, supported_phys, unconfigure_phys;
u16 pkt_type = (HCI_DH1 | HCI_DM1);
+ bool changed = false;
int err;
BT_DBG("sock %p %s", sk, hdev->name);
@@ -3450,11 +3465,16 @@ static int set_phy_configuration(struct sock *sk, struct hci_dev *hdev,
else
pkt_type |= HCI_3DH5;
- if (pkt_type != hdev->pkt_type)
+ if (pkt_type != hdev->pkt_type) {
hdev->pkt_type = pkt_type;
+ changed = true;
+ }
if ((selected_phys & MGMT_PHY_LE_MASK) ==
(get_selected_phys(hdev) & MGMT_PHY_LE_MASK)) {
+ if (changed)
+ mgmt_phy_configuration_changed(hdev, sk);
+
err = mgmt_cmd_complete(sk, hdev->id,
MGMT_OP_SET_PHY_CONFIGURATION,
0, NULL, 0);
--
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