From: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
Helper functions used to cound HCI devices (AMP controllers) and
build controller list packet.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@xxxxxxxxx>
---
include/net/bluetooth/hci.h | 2 ++
include/net/bluetooth/hci_core.h | 14 ++++++++++++++
net/bluetooth/a2mp.c | 34 ++++++++++++++++++++++++++++++++++
3 files changed, 50 insertions(+), 0 deletions(-)
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index cd52d21..3d3cc5d 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -56,6 +56,8 @@
#define HCI_BREDR 0x00
#define HCI_AMP 0x01
+#define HCI_BREDR_ID 0
+
/* HCI device quirks */
enum {
HCI_QUIRK_NO_RESET,
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 25c161a..bd72ef7 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -594,6 +594,20 @@ static inline struct hci_dev *__hci_dev_hold(struct hci_dev *d)
#define hci_dev_lock(d) mutex_lock(&d->lock)
#define hci_dev_unlock(d) mutex_unlock(&d->lock)
+static inline uint8_t hci_num_ctrl(void)
+{
+ uint8_t count = 0;
+ struct list_head *p;
+
+ read_lock_bh(&hci_dev_list_lock);
+ list_for_each(p, &hci_dev_list) {
+ count++;
+ }
+ read_unlock_bh(&hci_dev_list_lock);
+
+ return count;
+}
+
struct hci_dev *hci_dev_get(int index);
struct hci_dev *hci_get_route(bdaddr_t *src, bdaddr_t *dst);
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index b1400ad..c18eb59 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -13,6 +13,7 @@
*/
#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/a2mp.h>
@@ -67,6 +68,39 @@ static void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len,
kfree(cmd);
}
+static inline void __a2mp_cl_bredr(struct a2mp_cl *cl)
+{
+ cl->id = 0;
+ cl->type = 0;
+ cl->status = 1;
+}
+
+static void __a2mp_add_cl(struct amp_mgr *mgr, struct a2mp_cl *cl, u8 num_ctrl)
+{
+ int i = 0;
+ struct hci_dev *hdev;
+
+ read_lock_bh(&hci_dev_list_lock);
+
+ __a2mp_cl_bredr(cl);
+
+ list_for_each_entry(hdev, &hci_dev_list, list) {
+ /* Iterate through AMP controllers */
+ if (hdev->id == HCI_BREDR_ID)
+ continue;
+
+ /* Starting from second entry */
+ if (++i >= num_ctrl)
+ goto out;
+
+ cl[i].id = hdev->id;
+ cl[i].type = hdev->amp_type;
+ cl[i].status = hdev->amp_status;
+ }
+out:
+ read_unlock_bh(&hci_dev_list_lock);
+}
+
/* Processing A2MP messages */
static inline int a2mp_command_rej(struct amp_mgr *mgr, struct sk_buff *skb,
struct a2mp_cmd *hdr)
--
1.7.4.1
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