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Bluetooth: Add reading of page scan parameters

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These parameters are related to the "fast connectable" mode that can be
changed through the mgmt interface. Not all controllers properly reset
these values with HCI_Reset so they need to be read in order to be able
to verify whether the values are correct or not before enabling page
scan.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
This commit is contained in:
Johan Hedberg 2013-03-15 17:07:11 -05:00 committed by Gustavo Padovan
parent e36a37691e
commit f332ec6699
4 changed files with 55 additions and 0 deletions
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13
include/net/bluetooth/hci.h
View File

@ -887,12 +887,25 @@ struct hci_rp_read_data_block_size {
__le16 num_blocks;
} __packed;
#define HCI_OP_READ_PAGE_SCAN_ACTIVITY 0x0c1b
struct hci_rp_read_page_scan_activity {
__u8 status;
__le16 interval;
__le16 window;
} __packed;
#define HCI_OP_WRITE_PAGE_SCAN_ACTIVITY 0x0c1c
struct hci_cp_write_page_scan_activity {
__le16 interval;
__le16 window;
} __packed;
#define HCI_OP_READ_PAGE_SCAN_TYPE 0x0c46
struct hci_rp_read_page_scan_type {
__u8 status;
__u8 type;
} __packed;
#define HCI_OP_WRITE_PAGE_SCAN_TYPE 0x0c47
#define PAGE_SCAN_TYPE_STANDARD 0x00
#define PAGE_SCAN_TYPE_INTERLACED 0x01

4
include/net/bluetooth/hci_core.h
View File

@ -165,6 +165,10 @@ struct hci_dev {
__u16 voice_setting;
__u8 io_capability;
__s8 inq_tx_power;
__u16 page_scan_interval;
__u16 page_scan_window;
__u8 page_scan_type;
__u16 devid_source;
__u16 devid_vendor;
__u16 devid_product;

6
net/bluetooth/hci_core.c
View File

@ -272,6 +272,12 @@ static void bredr_setup(struct hci_request *req)
bacpy(&cp.bdaddr, BDADDR_ANY);
cp.delete_all = 0x01;
hci_req_add(req, HCI_OP_DELETE_STORED_LINK_KEY, sizeof(cp), &cp);
/* Read page scan parameters */
if (req->hdev->hci_ver > BLUETOOTH_VER_1_1) {
hci_req_add(req, HCI_OP_READ_PAGE_SCAN_ACTIVITY, 0, NULL);
hci_req_add(req, HCI_OP_READ_PAGE_SCAN_TYPE, 0, NULL);
}
}
static void le_setup(struct hci_request *req)

32
net/bluetooth/hci_event.c
View File

@ -601,6 +601,30 @@ static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
bacpy(&hdev->bdaddr, &rp->bdaddr);
}
static void hci_cc_read_page_scan_activity(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_rp_read_page_scan_activity *rp = (void *) skb->data;
BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
if (test_bit(HCI_INIT, &hdev->flags) && !rp->status) {
hdev->page_scan_interval = __le16_to_cpu(rp->interval);
hdev->page_scan_window = __le16_to_cpu(rp->window);
}
}
static void hci_cc_read_page_scan_type(struct hci_dev *hdev,
struct sk_buff *skb)
{
struct hci_rp_read_page_scan_type *rp = (void *) skb->data;
BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
if (test_bit(HCI_INIT, &hdev->flags) && !rp->status)
hdev->page_scan_type = rp->type;
}
static void hci_cc_read_data_block_size(struct hci_dev *hdev,
struct sk_buff *skb)
{
@ -2204,6 +2228,14 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cc_read_bd_addr(hdev, skb);
break;
case HCI_OP_READ_PAGE_SCAN_ACTIVITY:
hci_cc_read_page_scan_activity(hdev, skb);
break;
case HCI_OP_READ_PAGE_SCAN_TYPE:
hci_cc_read_page_scan_type(hdev, skb);
break;
case HCI_OP_READ_DATA_BLOCK_SIZE:
hci_cc_read_data_block_size(hdev, skb);
break;