diff --git a/include/net/bluetooth/a2mp.h b/include/net/bluetooth/a2mp.h
index af594685112e64fe134c895da57cdc362b453f4b..d5476719fa4c5bad9610776db3f87b7c74b32c39 100644
--- a/include/net/bluetooth/a2mp.h
+++ b/include/net/bluetooth/a2mp.h
@@ -21,6 +21,7 @@
enum amp_mgr_state {
READ_LOC_AMP_INFO,
+ READ_LOC_AMP_ASSOC,
};
struct amp_mgr {
@@ -134,5 +135,6 @@ struct l2cap_chan *a2mp_channel_create(struct l2cap_conn *conn,
struct amp_mgr *amp_mgr_lookup_by_state(u8 state);
void a2mp_send(struct amp_mgr *mgr, u8 code, u8 ident, u16 len, void *data);
void a2mp_send_getinfo_rsp(struct hci_dev *hdev);
+void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status);
#endif /* __A2MP_H */
diff --git a/include/net/bluetooth/amp.h b/include/net/bluetooth/amp.h
new file mode 100644
index 0000000000000000000000000000000000000000..e8616751bc81b300459354435747ae3a17051e0b
--- /dev/null
+++ b/include/net/bluetooth/amp.h
@@ -0,0 +1,21 @@
+/*
+ Copyright (c) 2011,2012 Intel Corp.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 and
+ only version 2 as published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+*/
+
+#ifndef __AMP_H
+#define __AMP_H
+
+void amp_read_loc_info(struct hci_dev *hdev, struct amp_mgr *mgr);
+void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle);
+void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr);
+
+#endif /* __AMP_H */
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h
index 4be26abf6dad94713ce652ab543ca6615d347c3a..ccc08e57c10705f24eaa5701f81923c3308e651d 100644
--- a/include/net/bluetooth/hci.h
+++ b/include/net/bluetooth/hci.h
@@ -33,6 +33,8 @@
#define HCI_LINK_KEY_SIZE 16
#define HCI_AMP_LINK_KEY_SIZE (2 * HCI_LINK_KEY_SIZE)
+#define HCI_MAX_AMP_ASSOC_SIZE 672
+
/* HCI dev events */
#define HCI_DEV_REG 1
#define HCI_DEV_UNREG 2
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index e7d454609881a30d929ec8aa613390df157c8b43..b1c7d0607244df3ffbd9769cff2e8375c18fc36c 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -124,6 +124,12 @@ struct le_scan_params {
#define HCI_MAX_SHORT_NAME_LENGTH 10
+struct amp_assoc {
+ __u16 len;
+ __u16 offset;
+ __u8 data[HCI_MAX_AMP_ASSOC_SIZE];
+};
+
#define NUM_REASSEMBLY 4
struct hci_dev {
struct list_head list;
@@ -177,6 +183,8 @@ struct hci_dev {
__u32 amp_max_flush_to;
__u32 amp_be_flush_to;
+ struct amp_assoc loc_assoc;
+
__u8 flow_ctl_mode;
unsigned int auto_accept_delay;
diff --git a/net/bluetooth/Makefile b/net/bluetooth/Makefile
index fa6d94a4602a8352a6f2aa9ed13ed18ff7e6c08a..dea6a287daca88b666eaee999043a3abf6dd853a 100644
--- a/net/bluetooth/Makefile
+++ b/net/bluetooth/Makefile
@@ -10,4 +10,4 @@ obj-$(CONFIG_BT_HIDP) += hidp/
bluetooth-y := af_bluetooth.o hci_core.o hci_conn.o hci_event.o mgmt.o \
hci_sock.o hci_sysfs.o l2cap_core.o l2cap_sock.o smp.o sco.o lib.o \
- a2mp.o
+ a2mp.o amp.o
diff --git a/net/bluetooth/a2mp.c b/net/bluetooth/a2mp.c
index 0e97b3b42ab113b4029efbe3695a5695f58c39e9..71400612843d9f9a05a68fb69d96586593bfea6a 100644
--- a/net/bluetooth/a2mp.c
+++ b/net/bluetooth/a2mp.c
@@ -16,6 +16,7 @@
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/l2cap.h>
#include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
/* Global AMP Manager list */
LIST_HEAD(amp_mgr_list);
@@ -218,26 +219,37 @@ static int a2mp_getampassoc_req(struct amp_mgr *mgr, struct sk_buff *skb,
{
struct a2mp_amp_assoc_req *req = (void *) skb->data;
struct hci_dev *hdev;
+ struct amp_mgr *tmp;
if (le16_to_cpu(hdr->len) < sizeof(*req))
return -EINVAL;
BT_DBG("id %d", req->id);
+ /* Make sure that other request is not processed */
+ tmp = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
+
hdev = hci_dev_get(req->id);
- if (!hdev || hdev->amp_type == HCI_BREDR) {
+ if (!hdev || hdev->amp_type == HCI_BREDR || tmp) {
struct a2mp_amp_assoc_rsp rsp;
rsp.id = req->id;
- rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+
+ if (tmp) {
+ rsp.status = A2MP_STATUS_COLLISION_OCCURED;
+ amp_mgr_put(tmp);
+ } else {
+ rsp.status = A2MP_STATUS_INVALID_CTRL_ID;
+ }
a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, hdr->ident, sizeof(rsp),
&rsp);
- goto clean;
+
+ goto done;
}
- /* Placeholder for HCI Read AMP Assoc */
+ amp_read_loc_assoc(hdev, mgr);
-clean:
+done:
if (hdev)
hci_dev_put(hdev);
@@ -624,3 +636,37 @@ void a2mp_send_getinfo_rsp(struct hci_dev *hdev)
a2mp_send(mgr, A2MP_GETINFO_RSP, mgr->ident, sizeof(rsp), &rsp);
amp_mgr_put(mgr);
}
+
+void a2mp_send_getampassoc_rsp(struct hci_dev *hdev, u8 status)
+{
+ struct amp_mgr *mgr;
+ struct amp_assoc *loc_assoc = &hdev->loc_assoc;
+ struct a2mp_amp_assoc_rsp *rsp;
+ size_t len;
+
+ mgr = amp_mgr_lookup_by_state(READ_LOC_AMP_ASSOC);
+ if (!mgr)
+ return;
+
+ BT_DBG("%s mgr %p", hdev->name, mgr);
+
+ len = sizeof(struct a2mp_amp_assoc_rsp) + loc_assoc->len;
+ rsp = kzalloc(len, GFP_KERNEL);
+ if (!rsp) {
+ amp_mgr_put(mgr);
+ return;
+ }
+
+ rsp->id = hdev->id;
+
+ if (status) {
+ rsp->status = A2MP_STATUS_INVALID_CTRL_ID;
+ } else {
+ rsp->status = A2MP_STATUS_SUCCESS;
+ memcpy(rsp->amp_assoc, loc_assoc->data, loc_assoc->len);
+ }
+
+ a2mp_send(mgr, A2MP_GETAMPASSOC_RSP, mgr->ident, len, rsp);
+ amp_mgr_put(mgr);
+ kfree(rsp);
+}
diff --git a/net/bluetooth/amp.c b/net/bluetooth/amp.c
new file mode 100644
index 0000000000000000000000000000000000000000..2d4e79ee06a5d7eac36e84c67614f705f2dab82d
--- /dev/null
+++ b/net/bluetooth/amp.c
@@ -0,0 +1,45 @@
+/*
+ Copyright (c) 2011,2012 Intel Corp.
+
+ This program is free software; you can redistribute it and/or modify
+ it under the terms of the GNU General Public License version 2 and
+ only version 2 as published by the Free Software Foundation.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+*/
+
+#include <net/bluetooth/bluetooth.h>
+#include <net/bluetooth/hci.h>
+#include <net/bluetooth/hci_core.h>
+#include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
+
+void amp_read_loc_assoc_frag(struct hci_dev *hdev, u8 phy_handle)
+{
+ struct hci_cp_read_local_amp_assoc cp;
+ struct amp_assoc *loc_assoc = &hdev->loc_assoc;
+
+ BT_DBG("%s handle %d", hdev->name, phy_handle);
+
+ cp.phy_handle = phy_handle;
+ cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
+ cp.len_so_far = cpu_to_le16(loc_assoc->offset);
+
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
+}
+
+void amp_read_loc_assoc(struct hci_dev *hdev, struct amp_mgr *mgr)
+{
+ struct hci_cp_read_local_amp_assoc cp;
+
+ memset(&hdev->loc_assoc, 0, sizeof(struct amp_assoc));
+ memset(&cp, 0, sizeof(cp));
+
+ cp.max_len = cpu_to_le16(hdev->amp_assoc_size);
+
+ mgr->state = READ_LOC_AMP_ASSOC;
+ hci_send_cmd(hdev, HCI_OP_READ_LOCAL_AMP_ASSOC, sizeof(cp), &cp);
+}
diff --git a/net/bluetooth/hci_event.c b/net/bluetooth/hci_event.c
index eb45774165f4ff4bcecec416841eca8b241ff585..a4240f7a142e058ee72281c36a3c29ea41e7df47 100644
--- a/net/bluetooth/hci_event.c
+++ b/net/bluetooth/hci_event.c
@@ -31,6 +31,7 @@
#include <net/bluetooth/hci_core.h>
#include <net/bluetooth/mgmt.h>
#include <net/bluetooth/a2mp.h>
+#include <net/bluetooth/amp.h>
/* Handle HCI Event packets */
@@ -866,6 +867,42 @@ static void hci_cc_read_local_amp_info(struct hci_dev *hdev,
a2mp_send_getinfo_rsp(hdev);
}
+static void hci_cc_read_local_amp_assoc(struct hci_dev *hdev,
+ struct sk_buff *skb)
+{
+ struct hci_rp_read_local_amp_assoc *rp = (void *) skb->data;
+ struct amp_assoc *assoc = &hdev->loc_assoc;
+ size_t rem_len, frag_len;
+
+ BT_DBG("%s status 0x%2.2x", hdev->name, rp->status);
+
+ if (rp->status)
+ goto a2mp_rsp;
+
+ frag_len = skb->len - sizeof(*rp);
+ rem_len = __le16_to_cpu(rp->rem_len);
+
+ if (rem_len > frag_len) {
+ BT_DBG("frag_len %d rem_len %d", frag_len, rem_len);
+
+ memcpy(assoc->data + assoc->offset, rp->frag, frag_len);
+ assoc->offset += frag_len;
+
+ /* Read other fragments */
+ amp_read_loc_assoc_frag(hdev, rp->phy_handle);
+
+ return;
+ }
+
+ memcpy(assoc->data + assoc->offset, rp->frag, rem_len);
+ assoc->len = assoc->offset + rem_len;
+ assoc->offset = 0;
+
+a2mp_rsp:
+ /* Send A2MP Rsp when all fragments are received */
+ a2mp_send_getampassoc_rsp(hdev, rp->status);
+}
+
static void hci_cc_delete_stored_link_key(struct hci_dev *hdev,
struct sk_buff *skb)
{
@@ -2318,6 +2355,10 @@ static void hci_cmd_complete_evt(struct hci_dev *hdev, struct sk_buff *skb)
hci_cc_read_local_amp_info(hdev, skb);
break;
+ case HCI_OP_READ_LOCAL_AMP_ASSOC:
+ hci_cc_read_local_amp_assoc(hdev, skb);
+ break;
+
case HCI_OP_DELETE_STORED_LINK_KEY:
hci_cc_delete_stored_link_key(hdev, skb);
break;