From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Implement block size read function. Use different variables for
packet-based and block-based flow control.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
include/net/bluetooth/hci.h | 8 ++++++++
include/net/bluetooth/hci_core.h | 5 +++++
net/bluetooth/hci_event.c | 26 ++++++++++++++++++++++++++
3 files changed, 39 insertions(+), 0 deletions(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 12649d0..9490c2c 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -749,6 +749,14 @@ struct hci_rp_read_bd_addr {
bdaddr_t bdaddr;
} __packed;
+#define HCI_OP_READ_DATA_BLOCK_SIZE 0x100a
+struct hci_rp_read_data_block_size {
+ __u8 status;
+ __le16 max_acl_len;
+ __le16 block_len;
+ __le16 num_blocks;
+} __packed;
+
#define HCI_OP_WRITE_PAGE_SCAN_ACTIVITY 0x0c1c
struct hci_cp_write_page_scan_activity {
__le16 interval;
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e34cd71..4c61161 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -188,6 +188,11 @@ struct hci_dev {
unsigned int sco_pkts;
unsigned int le_pkts;
+ __u16 block_len;
+ __u16 block_mtu;
+ __u16 num_blocks;
+ __u16 block_cnt;
+
unsigned long acl_last_tx;
unsigned long sco_last_tx;
unsigned long le_last_tx;
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index afd4731..273e1cb 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -776,6 +776,28 @@ static void hci_cc_read_bd_addr(struct hci_dev *hdev, struct sk_buff *skb)
hci_req_complete(hdev, HCI_OP_READ_BD_ADDR, rp->status);
}
+static void hci_cc_read_data_block_size(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_read_data_block_size *rp = (void *) skb->data;
+
+ BT_DBG("%s status 0x%x", hdev->name, rp->status);
+
+ if (rp->status)
+ return;
+
+ hdev->block_mtu = __le16_to_cpu(rp->max_acl_len);
+ hdev->block_len = __le16_to_cpu(rp->block_len);
+ hdev->num_blocks = __le16_to_cpu(rp->num_blocks);
+
+ hdev->block_cnt = hdev->num_blocks;
+
+ BT_DBG("%s blk mtu %d cnt %d len %d", hdev->name, hdev->block_mtu,
+ hdev->block_cnt, hdev->block_len);
+
+ hci_req_complete(hdev, HCI_OP_READ_DATA_BLOCK_SIZE, rp->status);
+}
+
static void hci_cc_write_ca_timeout(struct hci_dev *hdev, struct sk_buff *skb)
{
__u8 status = *((__u8 *) skb->data);
@@ -2031,6 +2053,10 @@ static inline void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *sk
hci_cc_read_bd_addr(hdev, skb);
break;
+ case HCI_OP_READ_DATA_BLOCK_SIZE:
+ hci_cc_read_data_block_size(hdev, skb);
+ break;
+
case HCI_OP_WRITE_CA_TIMEOUT:
hci_cc_write_ca_timeout(hdev, skb);
break;
--
1.7.4.1
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