From: Archie Pusaka
Implements the monitor removal functionality for advertising monitor
offloading to MSFT controllers. Supply handle = 0 to remove all
monitors.
Signed-off-by: Archie Pusaka
Reviewed-by: Miao-chen Chou
Reviewed-by: Yun-Hao Chung
---
(no changes since v1)
include/net/bluetooth/hci_core.h | 8 +-
net/bluetooth/hci_core.c | 119 +++--
net/bluetooth/mgmt.c | 110 +-
net/bluetooth/msft.c | 127 ++-
net/bluetooth/msft.h | 9 +++
5 files changed, 323 insertions(+), 50 deletions(-)
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 879d1e38ce96..29cfc6a2d689 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1332,11 +1332,13 @@ int hci_remove_adv_instance(struct hci_dev *hdev, u8
instance);
void hci_adv_instances_set_rpa_expired(struct hci_dev *hdev, bool rpa_expired);
void hci_adv_monitors_clear(struct hci_dev *hdev);
-void hci_free_adv_monitor(struct adv_monitor *monitor);
+void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor);
int hci_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
+int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
bool hci_add_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor,
int *err);
-int hci_remove_adv_monitor(struct hci_dev *hdev, u16 handle);
+bool hci_remove_single_adv_monitor(struct hci_dev *hdev, u16 handle, int *err);
+bool hci_remove_all_adv_monitor(struct hci_dev *hdev, int *err);
bool hci_is_adv_monitoring(struct hci_dev *hdev);
int hci_get_adv_monitor_offload_ext(struct hci_dev *hdev);
@@ -1813,8 +1815,10 @@ void mgmt_advertising_added(struct sock *sk, struct
hci_dev *hdev,
u8 instance);
void mgmt_advertising_removed(struct sock *sk, struct hci_dev *hdev,
u8 instance);
+void mgmt_adv_monitor_removed(struct hci_dev *hdev, u16 handle);
int mgmt_phy_configuration_changed(struct hci_dev *hdev, struct sock *skip);
int mgmt_add_adv_patterns_monitor_complete(struct hci_dev *hdev, u8 status);
+int mgmt_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status);
u8 hci_le_conn_update(struct hci_conn *conn, u16 min, u16 max, u16 latency,
u16 to_multiplier);
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index fa13e35f775d..782b05ca0d0c 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -3051,12 +3051,15 @@ void hci_adv_monitors_clear(struct hci_dev *hdev)
int handle;
idr_for_each_entry(>adv_monitors_idr, monitor, handle)
- hci_free_adv_monitor(monitor);
+ hci_free_adv_monitor(hdev, monitor);
idr_destroy(>adv_monitors_idr);
}
-void hci_free_adv_monitor(struct adv_monitor *monitor)
+/* Frees the monitor structure and do some bookkeepings.
+ * This function requires the caller holds hdev->lock.
+ */
+void hci_free_adv_monitor(struct hci_dev *hdev, struct adv_monitor *monitor)
{
struct adv_pattern *pattern;
struct adv_pattern *tmp;
@@ -3064,8 +3067,18 @@ void hci_free_adv_monitor(struct adv_monitor *monitor)
if (!monitor)
return;
- list_for_each_entry_safe(pattern, tmp, >patterns, list)
+ list_for_each_entry_safe(pattern, tmp, >patterns, list) {
+ list_del(>list);
kfree(pattern);
+ }
+
+ if (monitor->handle)
+ idr_remove(>adv_monitors_idr, monitor->handle);
+
+ if (monitor->state != ADV_MONITOR_STATE_NOT_REGISTERED) {
+ hdev->adv_monitors_cnt--;
+ mgmt_adv_monitor_removed(hdev, monitor->handle);
+ }
kfree(monitor);
}
@@ -3075,6 +3088,11 @@ int hci_add_adv_patterns_monitor_complete(struct hci_dev
*hdev, u8 status)
return mgmt_add_adv_patterns_monitor_complete(hdev, status);
}
+int hci_remove_adv_monitor_complete(struct hci_dev *hdev, u8 status)
+{
+ return mgmt_remove_adv_monitor_complete(hdev, status);
+}
+
/* Assigns handle to a monitor, and if offloading is supported and power is on,
* also attempts to forward the request to the controller.
* Returns true if request is forwarded (result is pending), false otherwise.
@@ -3121,39 +3139,94 @@ bool hci_add_adv_monitor(struct hci_dev *hdev, struct
adv_monitor *monitor,
return (*err == 0);
}
-static int free_adv_monitor(int id, void *ptr, void *data)
+/* Attempts to tell the controller and free the monitor. If somehow the
+ * controller doesn't have a corresponding handle, remove anyway.
+ * Returns true if request is forwarded (result is pending), false otherwise.
+ * This function requires the caller holds hdev->lock.
+ */
+static bool hci_remove_adv_monitor(struct hci_dev *hdev,
+ struct adv_monitor
