system/ulib/ddk/include/ddk/protocol/bt-hci.h

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// WARNING: This file is machine generated by fidlc.

#pragma once

#include <zircon/compiler.h>
#include <zircon/types.h>

__BEGIN_CDECLS;

// Forward declarations

typedef struct bt_hci_protocol bt_hci_protocol_t;

// Declarations

typedef struct bt_hci_protocol_ops {
    zx_status_t (*open_command_channel)(void* ctx, zx_handle_t* out_channel);
    zx_status_t (*open_acl_data_channel)(void* ctx, zx_handle_t* out_channel);
    zx_status_t (*open_snoop_channel)(void* ctx, zx_handle_t* out_channel);
} bt_hci_protocol_ops_t;

struct bt_hci_protocol {
    bt_hci_protocol_ops_t* ops;
    void* ctx;
};

// Open the two-way HCI command channel for sending HCI commands and
// receiving event packets.  Returns ZX_ERR_ALREADY_BOUND if the channel
// is already open.
static inline zx_status_t bt_hci_open_command_channel(const bt_hci_protocol_t* proto,
                                                      zx_handle_t* out_channel) {
    return proto->ops->open_command_channel(proto->ctx, out_channel);
}
// Open the two-way HCI ACL data channel.
// Returns ZX_ERR_ALREADY_BOUND if the channel is already open.
static inline zx_status_t bt_hci_open_acl_data_channel(const bt_hci_protocol_t* proto,
                                                       zx_handle_t* out_channel) {
    return proto->ops->open_acl_data_channel(proto->ctx, out_channel);
}
// Open an output-only channel for monitoring HCI traffic.
// The format of each message is: [1-octet flags] [n-octet payload]
// The flags octet is a bitfield with the following values defined:
//  - 0x00: The payload represents a command packet sent from the host to the
//          controller.
//  - 0x01: The payload represents an event packet sent by the controller.
// Returns ZX_ERR_ALREADY_BOUND if the channel is already open.
static inline zx_status_t bt_hci_open_snoop_channel(const bt_hci_protocol_t* proto,
                                                    zx_handle_t* out_channel) {
    return proto->ops->open_snoop_channel(proto->ctx, out_channel);
}

__END_CDECLS;