hci/include/bt_hci_bdroid.h

/******************************************************************************
 *
 *  Copyright (C) 2009-2012 Broadcom Corporation
 *
 *  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.
 *
 ******************************************************************************/

/******************************************************************************
 *
 *  Filename:      bt_hci_bdroid.h
 *
 *  Description:   A wrapper header file of bt_hci_lib.h
 *
 *                 Contains definitions specific for interfacing with Bluedroid
 *                 Bluetooth stack
 *
 ******************************************************************************/

#ifndef BT_HCI_BDROID_H
#define BT_HCI_BDROID_H

#include "bt_hci_lib.h"

/******************************************************************************
**  Constants & Macros
******************************************************************************/

#ifndef FALSE
#define FALSE  0
#endif

#ifndef TRUE
#define TRUE   (!FALSE)
#endif

#ifndef BTHC_LINUX_BASE_POLICY
#define BTHC_LINUX_BASE_POLICY SCHED_NORMAL
#endif

#if (BTHC_LINUX_BASE_POLICY != SCHED_NORMAL)
#ifndef BTHC_LINUX_BASE_PRIORITY
#define BTHC_LINUX_BASE_PRIORITY 30
#endif

#ifndef BTHC_USERIAL_READ_THREAD_PRIORITY
#define BTHC_USERIAL_READ_THREAD_PRIORITY (BTHC_LINUX_BASE_PRIORITY)
#endif

#ifndef BTHC_MAIN_THREAD_PRIORITY
#define BTHC_MAIN_THREAD_PRIORITY (BTHC_LINUX_BASE_PRIORITY-1)
#endif
#endif  // (BTHC_LINUX_BASE_POLICY != SCHED_NORMAL)

#ifndef BTHC_USERIAL_READ_MEM_SIZE
#define BTHC_USERIAL_READ_MEM_SIZE (1024)
#endif

#ifndef BTSNOOPDISP_INCLUDED
#define BTSNOOPDISP_INCLUDED TRUE
#endif

/* Disable external parser for production */
#ifndef BTSNOOP_EXT_PARSER_INCLUDED
#define BTSNOOP_EXT_PARSER_INCLUDED FALSE
#endif

/* Host/Controller lib internal event ID */
#define HC_EVENT_PRELOAD               0x0001
#define HC_EVENT_POSTLOAD              0x0002
#define HC_EVENT_RX                    0x0004
#define HC_EVENT_TX                    0x0008
#define HC_EVENT_LPM_ENABLE            0x0010
#define HC_EVENT_LPM_DISABLE           0x0020
#define HC_EVENT_LPM_WAKE_DEVICE       0x0040
#define HC_EVENT_LPM_ALLOW_SLEEP       0x0080
#define HC_EVENT_LPM_IDLE_TIMEOUT      0x0100
#define HC_EVENT_EXIT                  0x0200

/* 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

/******************************************************************************
**  Type definitions and return values
******************************************************************************/

typedef struct
{
    uint16_t          event;
    uint16_t          len;
    uint16_t          offset;
    uint16_t          layer_specific;
} HC_BT_HDR;

#define BT_HC_HDR_SIZE (sizeof(HC_BT_HDR))


typedef struct _hc_buffer_hdr
{
    struct _hc_buffer_hdr *p_next;   /* next buffer in the queue */
    uint8_t   reserved1;
    uint8_t   reserved2;
    uint8_t   reserved3;
    uint8_t   reserved4;
} HC_BUFFER_HDR_T;

#define BT_HC_BUFFER_HDR_SIZE (sizeof(HC_BUFFER_HDR_T))

/******************************************************************************
**  Extern variables and functions
******************************************************************************/

extern bt_hc_callbacks_t *bt_hc_cbacks;

/******************************************************************************
**  Functions
******************************************************************************/

/*******************************************************************************
**
** Function        bthc_signal_event
**
** Description     Perform context switch to bt_hc main thread
**
** Returns         None
**
*******************************************************************************/
extern void bthc_signal_event(uint16_t event);

#endif /* BT_HCI_BDROID_H */