diff options
| -rw-r--r-- | include/net/bluetooth/hci.h | 8 | ||||
| -rw-r--r-- | include/net/bluetooth/hci_core.h | 3 | ||||
| -rw-r--r-- | net/bluetooth/hci_conn.c | 4 | ||||
| -rw-r--r-- | net/bluetooth/hci_request.c | 47 | ||||
| -rw-r--r-- | net/bluetooth/hci_request.h | 2 |
5 files changed, 64 insertions, 0 deletions
diff --git a/include/net/bluetooth/hci.h b/include/net/bluetooth/hci.h index f03bbdf5f9a9..63065bc01b76 100644 --- a/include/net/bluetooth/hci.h +++ b/include/net/bluetooth/hci.h @@ -1286,6 +1286,14 @@ struct hci_rp_read_local_oob_ext_data { __u8 rand256[16]; } __packed; +#define HCI_CONFIGURE_DATA_PATH 0x0c83 +struct hci_op_configure_data_path { + __u8 direction; + __u8 data_path_id; + __u8 vnd_len; + __u8 vnd_data[]; +} __packed; + #define HCI_OP_READ_LOCAL_VERSION 0x1001 struct hci_rp_read_local_version { __u8 status; diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h index fdfdd3bdde16..4c6485ac3e2c 100644 --- a/include/net/bluetooth/hci_core.h +++ b/include/net/bluetooth/hci_core.h @@ -620,6 +620,9 @@ struct hci_dev { bool (*prevent_wake)(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_codec_config_data)(struct hci_dev *hdev, __u8 type, + struct bt_codec *codec, __u8 *vnd_len, + __u8 **vnd_data); }; #define HCI_PHY_HANDLE(handle) (handle & 0xff) diff --git a/net/bluetooth/hci_conn.c b/net/bluetooth/hci_conn.c index 5600b04d50b5..46fbafe10c61 100644 --- a/net/bluetooth/hci_conn.c +++ b/net/bluetooth/hci_conn.c @@ -315,6 +315,10 @@ static bool hci_enhanced_setup_sync_conn(struct hci_conn *conn, __u16 handle) bt_dev_dbg(hdev, "hcon %p", conn); + /* for offload use case, codec needs to configured before opening SCO */ + if (conn->codec.data_path) + hci_req_configure_datapath(hdev, &conn->codec); + conn->state = BT_CONNECT; conn->out = true; diff --git a/net/bluetooth/hci_request.c b/net/bluetooth/hci_request.c index f15626607b2d..47fb665277d4 100644 --- a/net/bluetooth/hci_request.c +++ b/net/bluetooth/hci_request.c @@ -3327,6 +3327,53 @@ bool hci_req_stop_discovery(struct hci_request *req) return ret; } +static void config_data_path_complete(struct hci_dev *hdev, u8 status, + u16 opcode) +{ + bt_dev_dbg(hdev, "status %u", status); +} + +int hci_req_configure_datapath(struct hci_dev *hdev, struct bt_codec *codec) +{ + struct hci_request req; + int err; + __u8 vnd_len, *vnd_data = NULL; + struct hci_op_configure_data_path *cmd = NULL; + + hci_req_init(&req, hdev); + + err = hdev->get_codec_config_data(hdev, ESCO_LINK, codec, &vnd_len, + &vnd_data); + if (err < 0) + goto error; + + cmd = kzalloc(sizeof(*cmd) + vnd_len, GFP_KERNEL); + if (!cmd) { + err = -ENOMEM; + goto error; + } + + err = hdev->get_data_path_id(hdev, &cmd->data_path_id); + if (err < 0) + goto error; + + cmd->vnd_len = vnd_len; + memcpy(cmd->vnd_data, vnd_data, vnd_len); + + cmd->direction = 0x00; + hci_req_add(&req, HCI_CONFIGURE_DATA_PATH, sizeof(*cmd) + vnd_len, cmd); + + cmd->direction = 0x01; + hci_req_add(&req, HCI_CONFIGURE_DATA_PATH, sizeof(*cmd) + vnd_len, cmd); + + err = hci_req_run(&req, config_data_path_complete); +error: + + kfree(cmd); + kfree(vnd_data); + return err; +} + static int stop_discovery(struct hci_request *req, unsigned long opt) { hci_dev_lock(req->hdev); diff --git a/net/bluetooth/hci_request.h b/net/bluetooth/hci_request.h index 39ee8a18087a..aaf608720243 100644 --- a/net/bluetooth/hci_request.h +++ b/net/bluetooth/hci_request.h @@ -101,6 +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); + static inline void hci_req_update_scan(struct hci_dev *hdev) { queue_work(hdev->req_workqueue, &hdev->scan_update); |