Bluetooth: AMP: Handle AMP_LINK connection

AMP_LINK represents physical link between AMP controllers.

Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index b697ef3..d5ed054 100644 (file)
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -73,6 +73,7 @@ struct discovery_state {
 struct hci_conn_hash {
        struct list_head list;
        unsigned int     acl_num;
+       unsigned int     amp_num;
        unsigned int     sco_num;
        unsigned int     le_num;
 };
@@ -449,6 +450,9 @@ static inline void hci_conn_hash_add(struct hci_dev *hdev, struct hci_conn *c)
        case ACL_LINK:
                h->acl_num++;
                break;
+       case AMP_LINK:
+               h->amp_num++;
+               break;
        case LE_LINK:
                h->le_num++;
                break;
@@ -470,6 +474,9 @@ static inline void hci_conn_hash_del(struct hci_dev *hdev, struct hci_conn *c)
        case ACL_LINK:
                h->acl_num--;
                break;
+       case AMP_LINK:
+               h->amp_num--;
+               break;
        case LE_LINK:
                h->le_num--;
                break;
@@ -486,6 +493,8 @@ static inline unsigned int hci_conn_num(struct hci_dev *hdev, __u8 type)
        switch (type) {
        case ACL_LINK:
                return h->acl_num;
+       case AMP_LINK:
+               return h->amp_num;
        case LE_LINK:
                return h->le_num;
        case SCO_LINK:
@@ -801,6 +810,10 @@ static inline void hci_proto_disconn_cfm(struct hci_conn *conn, __u8 reason)
                sco_disconn_cfm(conn, reason);
                break;
 
+       /* L2CAP would be handled for BREDR chan */
+       case AMP_LINK:
+               break;
+
        default:
                BT_ERR("unknown link type %d", conn->type);
                break;

diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index bd26cb5..2e72c41 100644 (file)
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -2379,6 +2379,9 @@ static struct hci_chan *hci_chan_sent(struct hci_dev *hdev, __u8 type,
        case ACL_LINK:
                cnt = hdev->acl_cnt;
                break;
+       case AMP_LINK:
+               cnt = hdev->block_cnt;
+               break;
        case SCO_LINK:
        case ESCO_LINK:
                cnt = hdev->sco_cnt;
@@ -2508,11 +2511,19 @@ static void hci_sched_acl_blk(struct hci_dev *hdev)
        struct hci_chan *chan;
        struct sk_buff *skb;
        int quote;
+       u8 type;
 
        __check_timeout(hdev, cnt);
 
+       BT_DBG("%s", hdev->name);
+
+       if (hdev->dev_type == HCI_AMP)
+               type = AMP_LINK;
+       else
+               type = ACL_LINK;
+
        while (hdev->block_cnt > 0 &&
-              (chan = hci_chan_sent(hdev, ACL_LINK, &quote))) {
+              (chan = hci_chan_sent(hdev, type, &quote))) {
                u32 priority = (skb_peek(&chan->data_q))->priority;
                while (quote > 0 && (skb = skb_peek(&chan->data_q))) {
                        int blocks;
@@ -2545,14 +2556,19 @@ static void hci_sched_acl_blk(struct hci_dev *hdev)
        }
 
        if (cnt != hdev->block_cnt)
-               hci_prio_recalculate(hdev, ACL_LINK);
+               hci_prio_recalculate(hdev, type);
 }
 
 static void hci_sched_acl(struct hci_dev *hdev)
 {
        BT_DBG("%s", hdev->name);
 
-       if (!hci_conn_num(hdev, ACL_LINK))
+       /* No ACL link over BR/EDR controller */
+       if (!hci_conn_num(hdev, ACL_LINK) && hdev->dev_type == HCI_BREDR)
+               return;
+
+       /* No AMP link over AMP controller */
+       if (!hci_conn_num(hdev, AMP_LINK) && hdev->dev_type == HCI_AMP)
                return;
 
        switch (hdev->flow_ctl_mode) {

diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index 5c0b6c1..0383635 100644 (file)
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -2733,6 +2733,7 @@ static void hci_num_comp_blocks_evt(struct hci_dev *hdev, struct sk_buff *skb)
 
                switch (conn->type) {
                case ACL_LINK:
+               case AMP_LINK:
                        hdev->block_cnt += block_count;
                        if (hdev->block_cnt > hdev->num_blocks)
                                hdev->block_cnt = hdev->num_blocks;