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Bluetooth: Set LE Default PHY preferences 

If the LE Set Default PHY command is supported, the indicate to the
controller that the host has no preferences for transmitter PHY or
receiver PHY selection.

Issuing this command gives the controller a clear indication that other
PHY can be selected if available.

Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
This commit is contained in:
Marcel Holtmann 2017-05-01 23:54:19 -07:00
parent 27bbca4402
commit de2ba3039c
2 changed files with 19 additions and 0 deletions
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7
include/net/bluetooth/hci.h
View File

@ -1499,6 +1499,13 @@ struct hci_rp_le_read_max_data_len {
__le16 rx_time;
} __packed;
#define HCI_OP_LE_SET_DEFAULT_PHY 0x2031
struct hci_cp_le_set_default_phy {
__u8 all_phys;
__u8 tx_phys;
__u8 rx_phys;
} __packed;
/* ---- HCI Events ---- */
#define HCI_EV_INQUIRY_COMPLETE 0x01

12
net/bluetooth/hci_core.c
View File

@ -794,6 +794,18 @@ static int hci_init4_req(struct hci_request *req, unsigned long opt)
hci_req_add(req, HCI_OP_LE_WRITE_DEF_DATA_LEN, sizeof(cp), &cp);
}
/* Set Default PHY parameters if command is supported */
if (hdev->commands[35] & 0x20) {
struct hci_cp_le_set_default_phy cp;
/* No transmitter PHY or receiver PHY preferences */
cp.all_phys = 0x03;
cp.tx_phys = 0;
cp.rx_phys = 0;
hci_req_add(req, HCI_OP_LE_SET_DEFAULT_PHY, sizeof(cp), &cp);
}
return 0;
}