From: Johan Hedberg <johan.hedberg@xxxxxxxxx>
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@xxxxxxxxx>
Acked-by: Marcel Holtmann <marcel@xxxxxxxxxxxx>
---
include/net/bluetooth/hci.h | 13 +++++++++++++
include/net/bluetooth/hci_core.h | 4 ++++
net/bluetooth/hci_core.c | 6 ++++++
net/bluetooth/hci_event.c | 32 ++++++++++++++++++++++++++++++++
4 files changed, 55 insertions(+)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index b854506..b330892 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -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
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index cb99193..358a698 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -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;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0ffd358..cfcad54 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -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)
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 84edacb..38cf645 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -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 = __le16_to_cpu(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;
--
1.7.10.4
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