From: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx>
This will allow for easier parameterization of these fields. This is
the first step for allowing to change the parameters during runtime.
Signed-off-by: Vinicius Costa Gomes <vinicius.gomes@xxxxxxxxxxxxx>
Signed-off-by: Andre Guedes <andre.guedes@xxxxxxxxxxxxx>
---
include/net/bluetooth/hci_core.h | 13 +++++++++++++
net/bluetooth/hci_conn.c | 16 +++++++++-------
net/bluetooth/hci_core.c | 11 +++++++++++
3 files changed, 33 insertions(+), 7 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 20dae6d..b354211 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -117,6 +117,17 @@ struct oob_data {
u8 randomizer[16];
};
+struct le_conn_param {
+ u16 scan_interval;
+ u16 scan_window;
+ u16 conn_interval_min;
+ u16 conn_interval_max;
+ u16 supervision_timeout;
+ u16 min_ce_lentgh;
+ u16 max_ce_lentgh;
+ u16 conn_latency;
+};
+
#define HCI_MAX_SHORT_NAME_LENGTH 10
struct amp_assoc {
@@ -287,6 +298,8 @@ struct hci_dev {
struct delayed_work le_scan_disable;
+ struct le_conn_param le_conn_param;
+
__s8 adv_tx_power;
__u8 adv_data[HCI_MAX_AD_LENGTH];
__u8 adv_data_len;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index f081712..97fc61b 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -52,6 +52,7 @@ static const struct sco_param sco_param_wideband[] = {
static void hci_le_create_connection(struct hci_conn *conn)
{
struct hci_dev *hdev = conn->hdev;
+ struct le_conn_param *param = &hdev->le_conn_param;
struct hci_cp_le_create_conn cp;
conn->state = BT_CONNECT;
@@ -60,15 +61,16 @@ static void hci_le_create_connection(struct hci_conn *conn)
conn->sec_level = BT_SECURITY_LOW;
memset(&cp, 0, sizeof(cp));
- cp.scan_interval = __constant_cpu_to_le16(0x0060);
- cp.scan_window = __constant_cpu_to_le16(0x0030);
+ cp.scan_interval = __cpu_to_le16(param->scan_interval);
+ cp.scan_window = __cpu_to_le16(param->scan_window);
bacpy(&cp.peer_addr, &conn->dst);
cp.peer_addr_type = conn->dst_type;
- cp.conn_interval_min = __constant_cpu_to_le16(0x0028);
- cp.conn_interval_max = __constant_cpu_to_le16(0x0038);
- cp.supervision_timeout = __constant_cpu_to_le16(0x002a);
- cp.min_ce_len = __constant_cpu_to_le16(0x0000);
- cp.max_ce_len = __constant_cpu_to_le16(0x0000);
+ cp.conn_interval_min = __cpu_to_le16(param->conn_interval_min);
+ cp.conn_interval_max = __cpu_to_le16(param->conn_interval_max);
+ cp.supervision_timeout = __cpu_to_le16(param->supervision_timeout);
+ cp.min_ce_len = __constant_cpu_to_le16(param->min_ce_lentgh);
+ cp.max_ce_len = __constant_cpu_to_le16(param->max_ce_lentgh);
+ cp.conn_latency = __constant_cpu_to_le16(param->conn_latency);
hci_send_cmd(hdev, HCI_OP_LE_CREATE_CONN, sizeof(cp), &cp);
}
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index e6d1350..eac6709 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2098,6 +2098,7 @@ struct hci_dev *hci_alloc_dev(void)
{
struct hci_dev *hdev;
struct discovery_param *discov;
+ struct le_conn_param *conn_param;
hdev = kzalloc(sizeof(struct hci_dev), GFP_KERNEL);
if (!hdev)
@@ -2153,6 +2154,16 @@ struct hci_dev *hci_alloc_dev(void)
discov->interleaved_inquiry_length = DISCOV_INTERLEAVED_INQUIRY_LEN;
discov->bredr_inquiry_length = DISCOV_BREDR_INQUIRY_LEN;
+ conn_param = &hdev->le_conn_param;
+ conn_param->scan_interval = 0x0060;
+ conn_param->scan_window = 0x0030;
+ conn_param->conn_interval_min = 0x0028;
+ conn_param->conn_interval_max = 0x0038;
+ conn_param->supervision_timeout = 0x002a;
+ conn_param->min_ce_lentgh = 0x0000;
+ conn_param->max_ce_lentgh = 0x0000;
+ conn_param->conn_latency = 0x0000;
+
return hdev;
}
EXPORT_SYMBOL(hci_alloc_dev);
--
1.8.3.4
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