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/******************************************************************************
*
* Copyright (C) 2014 Google, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at:
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
******************************************************************************/
#pragma once
#include <stdbool.h>
#include "allocator.h"
#include "bt_types.h"
#include "data_dispatcher.h"
#include "fixed_queue.h"
#include "future.h"
#include "osi.h"
static const char HCI_MODULE[] = "hci_module";
///// LEGACY DEFINITIONS /////
/* Message event mask across Host/Controller lib and stack */
#define MSG_EVT_MASK 0xFF00 /* eq. BT_EVT_MASK */
#define MSG_SUB_EVT_MASK 0x00FF /* eq. BT_SUB_EVT_MASK */
/* Message event ID passed from Host/Controller lib to stack */
#define MSG_HC_TO_STACK_HCI_ERR 0x1300 /* eq. BT_EVT_TO_BTU_HCIT_ERR */
#define MSG_HC_TO_STACK_HCI_ACL 0x1100 /* eq. BT_EVT_TO_BTU_HCI_ACL */
#define MSG_HC_TO_STACK_HCI_SCO 0x1200 /* eq. BT_EVT_TO_BTU_HCI_SCO */
#define MSG_HC_TO_STACK_HCI_EVT 0x1000 /* eq. BT_EVT_TO_BTU_HCI_EVT */
#define MSG_HC_TO_STACK_L2C_SEG_XMIT 0x1900 /* eq. BT_EVT_TO_BTU_L2C_SEG_XMIT */
/* Message event ID passed from stack to vendor lib */
#define MSG_STACK_TO_HC_HCI_ACL 0x2100 /* eq. BT_EVT_TO_LM_HCI_ACL */
#define MSG_STACK_TO_HC_HCI_SCO 0x2200 /* eq. BT_EVT_TO_LM_HCI_SCO */
#define MSG_STACK_TO_HC_HCI_CMD 0x2000 /* eq. BT_EVT_TO_LM_HCI_CMD */
/* Local Bluetooth Controller ID for BR/EDR */
#define LOCAL_BR_EDR_CONTROLLER_ID 0
///// END LEGACY DEFINITIONS /////
typedef struct hci_hal_t hci_hal_t;
typedef struct btsnoop_t btsnoop_t;
typedef struct controller_t controller_t;
typedef struct hci_inject_t hci_inject_t;
typedef struct packet_fragmenter_t packet_fragmenter_t;
typedef struct vendor_t vendor_t;
typedef struct low_power_manager_t low_power_manager_t;
typedef unsigned char * bdaddr_t;
typedef uint16_t command_opcode_t;
typedef enum {
LPM_DISABLE,
LPM_ENABLE,
LPM_WAKE_ASSERT,
LPM_WAKE_DEASSERT
} low_power_command_t;
typedef void (*command_complete_cb)(BT_HDR *response, void *context);
typedef void (*command_status_cb)(uint8_t status, BT_HDR *command, void *context);
typedef struct hci_t {
// Send a low power command, if supported and the low power manager is enabled.
void (*send_low_power_command)(low_power_command_t command);
// Do the postload sequence (call after the rest of the BT stack initializes).
void (*do_postload)(void);
// Register with this data dispatcher to receive events flowing upward out of the HCI layer
data_dispatcher_t *event_dispatcher;
// Set the queue to receive ACL data in
void (*set_data_queue)(fixed_queue_t *queue);
// Send a command through the HCI layer
void (*transmit_command)(
BT_HDR *command,
command_complete_cb complete_callback,
command_status_cb status_cb,
void *context
);
future_t *(*transmit_command_futured)(BT_HDR *command);
// Send some data downward through the HCI layer
void (*transmit_downward)(data_dispatcher_type_t type, void *data);
/** SSR cleanup is used in HW reset cases
** which would close all the client channels
** and turns off the chip*/
void (*ssr_cleanup)(void);
} hci_t;
const hci_t *hci_layer_get_interface();
const hci_t *hci_layer_get_test_interface(
const allocator_t *buffer_allocator_interface,
const hci_hal_t *hal_interface,
const btsnoop_t *btsnoop_interface,
const hci_inject_t *hci_inject_interface,
const packet_fragmenter_t *packet_fragmenter_interface,
const vendor_t *vendor_interface,
const low_power_manager_t *low_power_manager_interface);
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