2021-10-08 13:55:14

by Kiran K

[permalink] [raw]
Subject: [PATCH v1 4/7] Bluetooth: Pass transport type in get_data_path_id

To support fetching of data path id for other transport types
like a2dp, le audio, pass an additional parameter to get_data_path_id
callback function.

Signed-off-by: Kiran K <[email protected]>
Change-Id: Ie3f0c50cb07b6cf8e8ae001361940e8b1411b461
---
drivers/bluetooth/btintel.c | 19 +++++++++++++++----
drivers/bluetooth/hci_vhci.c | 6 +++++-
include/net/bluetooth/hci_core.h | 3 ++-
net/bluetooth/hci_codec.c | 9 ++++++---
net/bluetooth/hci_conn.c | 3 ++-
net/bluetooth/hci_request.c | 5 +++--
net/bluetooth/hci_request.h | 3 ++-
7 files changed, 35 insertions(+), 13 deletions(-)

diff --git a/drivers/bluetooth/btintel.c b/drivers/bluetooth/btintel.c
index f1431143eff5..de4667179efb 100644
--- a/drivers/bluetooth/btintel.c
+++ b/drivers/bluetooth/btintel.c
@@ -2207,11 +2207,22 @@ static int btintel_get_codec_config_data(struct hci_dev *hdev,
return err;
}

-static int btintel_get_data_path_id(struct hci_dev *hdev, __u8 *data_path_id)
+static int btintel_get_data_path_id(struct hci_dev *hdev, __u8 transport,
+ __u8 *data_path_id)
{
- /* Intel uses 1 as data path id for all the usecases */
- *data_path_id = 1;
- return 0;
+ struct btintel_data *intel_data;
+
+ if (transport != HCI_TRANSPORT_SCO_ESCO)
+ return -EINVAL;
+
+ intel_data = hci_get_priv((hdev));
+
+ if (intel_data->use_cases.preset[0] & 0x03) {
+ /* Intel uses 1 as data path id for all the usecases */
+ *data_path_id = 1;
+ return 0;
+ }
+ return -EOPNOTSUPP;
}

static int btintel_configure_offload(struct hci_dev *hdev)
diff --git a/drivers/bluetooth/hci_vhci.c b/drivers/bluetooth/hci_vhci.c
index 56c6b22be10b..a011d5b5694a 100644
--- a/drivers/bluetooth/hci_vhci.c
+++ b/drivers/bluetooth/hci_vhci.c
@@ -78,8 +78,12 @@ static int vhci_send_frame(struct hci_dev *hdev, struct sk_buff *skb)
return 0;
}

-static int vhci_get_data_path_id(struct hci_dev *hdev, u8 *data_path_id)
+static int vhci_get_data_path_id(struct hci_dev *hdev, u8 transport,
+ u8 *data_path_id)
{
+ if (transport != HCI_TRANSPORT_SCO_ESCO)
+ return -EINVAL;
+
*data_path_id = 0;
return 0;
}
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index dd8840e70e25..8b8b45f6d5bd 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -619,7 +619,8 @@ struct hci_dev {
void (*cmd_timeout)(struct hci_dev *hdev);
bool (*wakeup)(struct hci_dev *hdev);
int (*set_quality_report)(struct hci_dev *hdev, bool enable);
- int (*get_data_path_id)(struct hci_dev *hdev, __u8 *data_path);
+ int (*get_data_path_id)(struct hci_dev *hdev, __u8 transport,
+ __u8 *data_path);
int (*get_codec_config_data)(struct hci_dev *hdev, __u8 type,
struct bt_codec *codec, __u8 *vnd_len,
__u8 **vnd_data);
diff --git a/net/bluetooth/hci_codec.c b/net/bluetooth/hci_codec.c
index f4d8d3a253d8..6d4e5353f05c 100644
--- a/net/bluetooth/hci_codec.c
+++ b/net/bluetooth/hci_codec.c
@@ -259,6 +259,7 @@ int hci_get_supported_codecs(struct hci_dev *hdev, u8 type, char __user *optval,
struct bt_codec codec;
u8 num_codecs = 0, i, __user *ptr;
struct codec_list *c;
+ u8 data_path;

if (!hci_dev_test_flag(hdev, HCI_OFFLOAD_CODECS_ENABLED)) {
err = -EOPNOTSUPP;
@@ -270,6 +271,10 @@ int hci_get_supported_codecs(struct hci_dev *hdev, u8 type, char __user *optval,
goto error;
}

+ err = hdev->get_data_path_id(hdev, type, &data_path);
+ if (err < 0)
+ goto error;
+
/* find total buffer size required to copy codec + capabilities */
hci_dev_lock(hdev);
list_for_each_entry(c, &hdev->local_codecs, list) {
@@ -306,9 +311,7 @@ int hci_get_supported_codecs(struct hci_dev *hdev, u8 type, char __user *optval,
codec.id = c->id;
codec.cid = c->cid;
codec.vid = c->vid;
- err = hdev->get_data_path_id(hdev, &codec.data_path);
- if (err < 0)
- break;
+ codec.data_path = data_path;
codec.num_caps = c->num_caps;
if (copy_to_user(ptr, &codec, sizeof(codec))) {
err = -EFAULT;
diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c
index bd669c95b9a7..62192f463e5c 100644
--- a/net/bluetooth/hci_conn.c
+++ b/net/bluetooth/hci_conn.c
@@ -317,7 +317,8 @@ static bool hci_enhanced_setup_sync_conn(struct hci_conn *conn, __u16 handle)

/* for offload use case, codec needs to configured before opening SCO */
if (conn->codec.data_path)
- hci_req_configure_datapath(hdev, &conn->codec);
+ hci_req_configure_datapath(hdev, HCI_TRANSPORT_SCO_ESCO,
+ &conn->codec);

conn->state = BT_CONNECT;
conn->out = true;
diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c
index 92611bfc0b9e..34a104a2ca32 100644
--- a/net/bluetooth/hci_request.c
+++ b/net/bluetooth/hci_request.c
@@ -2950,7 +2950,8 @@ static void config_data_path_complete(struct hci_dev *hdev, u8 status,
bt_dev_dbg(hdev, "status %u", status);
}

-int hci_req_configure_datapath(struct hci_dev *hdev, struct bt_codec *codec)
+int hci_req_configure_datapath(struct hci_dev *hdev, u8 transport,
+ struct bt_codec *codec)
{
struct hci_request req;
int err;
@@ -2970,7 +2971,7 @@ int hci_req_configure_datapath(struct hci_dev *hdev, struct bt_codec *codec)
goto error;
}

- err = hdev->get_data_path_id(hdev, &cmd->data_path_id);
+ err = hdev->get_data_path_id(hdev, transport, &cmd->data_path_id);
if (err < 0)
goto error;

diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h
index f31420f58525..d80a4e277a20 100644
--- a/net/bluetooth/hci_request.h
+++ b/net/bluetooth/hci_request.h
@@ -101,7 +101,8 @@ void __hci_req_update_class(struct hci_request *req);
/* Returns true if HCI commands were queued */
bool hci_req_stop_discovery(struct hci_request *req);

-int hci_req_configure_datapath(struct hci_dev *hdev, struct bt_codec *codec);
+int hci_req_configure_datapath(struct hci_dev *hdev, u8 transport,
+ struct bt_codec *codec);

static inline void hci_req_update_scan(struct hci_dev *hdev)
{
--
2.17.1