stack/btm/btm_ble_int_types.h - platform/system/bt - Git at Google

 /******************************************************************************
  *
  *  Copyright (C) 1999-2012 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.
  *
  ******************************************************************************/

 #ifndef BTM_BLE_INT_TYPES_H
 #define BTM_BLE_INT_TYPES_H

 #include "osi/include/alarm.h"

 /* scanning enable status */
 #define BTM_BLE_SCAN_ENABLE 0x01
 #define BTM_BLE_SCAN_DISABLE 0x00

 /* advertising enable status */
 #define BTM_BLE_ADV_ENABLE 0x01
 #define BTM_BLE_ADV_DISABLE 0x00

 /* use the high 4 bits unused by inquiry mode */
 #define BTM_BLE_SELECT_SCAN 0x20
 #define BTM_BLE_NAME_REQUEST 0x40
 #define BTM_BLE_OBSERVE 0x80

 #define BTM_BLE_MAX_WL_ENTRY 1
 #define BTM_BLE_AD_DATA_LEN 31

 #define BTM_BLE_ENC_MASK 0x03

 #define BTM_BLE_DUPLICATE_ENABLE 1
 #define BTM_BLE_DUPLICATE_DISABLE 0

 /* Interval(scan_int) = 11.25 ms= 0x0010 * 0.625 ms */
 #define BTM_BLE_GAP_DISC_SCAN_INT 18
 /* scan_window = 11.25 ms= 0x0010 * 0.625 ms */
 #define BTM_BLE_GAP_DISC_SCAN_WIN 18
 /* Tgap(gen_disc) = 1.28 s= 512 * 0.625 ms */
 #define BTM_BLE_GAP_ADV_INT 512
 /* Tgap(lim_timeout) = 180s max */
 #define BTM_BLE_GAP_LIM_TIMEOUT_MS (180 * 1000)
 /* Interval(scan_int) = 5s= 8000 * 0.625 ms */
 #define BTM_BLE_LOW_LATENCY_SCAN_INT 8000
 /* scan_window = 5s= 8000 * 0.625 ms */
 #define BTM_BLE_LOW_LATENCY_SCAN_WIN 8000

 /* TGAP(adv_fast_interval1) = 30(used) ~ 60 ms  = 48 *0.625 */
 #define BTM_BLE_GAP_ADV_FAST_INT_1 48
 /* TGAP(adv_fast_interval2) = 100(used) ~ 150 ms = 160 * 0.625 ms */
 #define BTM_BLE_GAP_ADV_FAST_INT_2 160
 /* Tgap(adv_slow_interval) = 1.28 s= 512 * 0.625 ms */
 #define BTM_BLE_GAP_ADV_SLOW_INT 2048
 /* Tgap(dir_conn_adv_int_max) = 500 ms = 800 * 0.625 ms */
 #define BTM_BLE_GAP_ADV_DIR_MAX_INT 800
 /* Tgap(dir_conn_adv_int_min) = 250 ms = 400 * 0.625 ms */
 #define BTM_BLE_GAP_ADV_DIR_MIN_INT 400

 #define BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS (30 * 1000)

 #define BTM_BLE_SEC_REQ_ACT_NONE 0
 /* encrypt the link using current key or key refresh */
 #define BTM_BLE_SEC_REQ_ACT_ENCRYPT 1
 #define BTM_BLE_SEC_REQ_ACT_PAIR 2
 /* discard the sec request while encryption is started but not completed */
 #define BTM_BLE_SEC_REQ_ACT_DISCARD 3
 typedef uint8_t tBTM_BLE_SEC_REQ_ACT;

 #define BLE_STATIC_PRIVATE_MSB_MASK 0x3f
 /*  most significant bit, bit7, bit6 is 01 to be resolvable random */
 #define BLE_RESOLVE_ADDR_MSB 0x40
 /* bit 6, and bit7 */
 #define BLE_RESOLVE_ADDR_MASK 0xc0
 inline bool BTM_BLE_IS_RESOLVE_BDA(const RawAddress& x) {
   return ((x.address)[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB;
 }

 #define BLE_PUBLIC_ADDR_MSB_MASK 0xC0
 /*  most significant bit, bit7, bit6 is 10 to be public address*/
 #define BLE_PUBLIC_ADDR_MSB 0x80
 inline bool BTM_IS_PUBLIC_BDA(const RawAddress& x) {
   return ((x.address)[0] & BLE_PUBLIC_ADDR_MSB_MASK) == BLE_PUBLIC_ADDR_MSB;
 }

 /* LE scan activity bit mask, continue with LE inquiry bits */
 /* observe is in progress */
 #define BTM_LE_OBSERVE_ACTIVE 0x80

 /* BLE scan activity mask checking */
 #define BTM_BLE_IS_SCAN_ACTIVE(x) ((x)&BTM_BLE_SCAN_ACTIVE_MASK)
 #define BTM_BLE_IS_INQ_ACTIVE(x) ((x)&BTM_BLE_INQUIRY_MASK)
 #define BTM_BLE_IS_OBS_ACTIVE(x) ((x)&BTM_LE_OBSERVE_ACTIVE)

 /* BLE ADDR type ID bit */
 #define BLE_ADDR_TYPE_ID_BIT 0x02

 #define BTM_VSC_CHIP_CAPABILITY_L_VERSION 55
 #define BTM_VSC_CHIP_CAPABILITY_M_VERSION 95

 typedef struct {
   uint16_t data_mask;
   uint8_t* p_flags;
   uint8_t ad_data[BTM_BLE_AD_DATA_LEN];
   uint8_t* p_pad;
 } tBTM_BLE_LOCAL_ADV_DATA;

 typedef struct {
   /* Used for determining if a response has already been received for the
    * current inquiry operation. (We do not want to flood the caller with
    * multiple responses from the same device. */
   uint32_t inq_count;
   bool scan_rsp;
   tBLE_BD_ADDR le_bda;
 } tINQ_LE_BDADDR;

 #define BTM_BLE_ISVALID_PARAM(x, min, max) \
   (((x) >= (min) && (x) <= (max)) || ((x) == BTM_BLE_CONN_PARAM_UNDEF))

 /* 15 minutes minimum for random address refreshing */
 #define BTM_BLE_PRIVATE_ADDR_INT_MS (15 * 60 * 1000)

 typedef struct {
   uint16_t discoverable_mode;
   uint16_t connectable_mode;
   uint32_t scan_window;
   uint32_t scan_interval;
   uint8_t scan_type;             /* current scan type: active or passive */
   uint8_t scan_duplicate_filter; /* duplicate filter enabled for scan */
   uint16_t adv_interval_min;
   uint16_t adv_interval_max;
   tBTM_BLE_AFP afp; /* advertising filter policy */
   tBTM_BLE_SFP sfp; /* scanning filter policy */

   tBLE_ADDR_TYPE adv_addr_type;
   uint8_t evt_type;
   uint8_t adv_mode;
   tBLE_BD_ADDR direct_bda;
   tBTM_BLE_EVT directed_conn;
   bool fast_adv_on;
   alarm_t* fast_adv_timer;

   /* inquiry BD addr database */
   uint8_t num_bd_entries;
   uint8_t max_bd_entries;
   tBTM_BLE_LOCAL_ADV_DATA adv_data;
   tBTM_BLE_ADV_CHNL_MAP adv_chnl_map;

   alarm_t* inquiry_timer;
   bool scan_rsp;
   uint8_t state; /* Current state that the inquiry process is in */
   int8_t tx_power;
 } tBTM_BLE_INQ_CB;

 /* random address resolving complete callback */
 typedef void(tBTM_BLE_RESOLVE_CBACK)(void* match_rec, void* p);

 typedef void(tBTM_BLE_ADDR_CBACK)(const RawAddress& static_random, void* p);

 /* random address management control block */
 typedef struct {
   tBLE_ADDR_TYPE own_addr_type; /* local device LE address type */
   RawAddress private_addr;
   RawAddress random_bda;
   tBTM_BLE_ADDR_CBACK* p_generate_cback;
   void* p;
   alarm_t* refresh_raddr_timer;
 } tBTM_LE_RANDOM_CB;

 typedef struct {
   uint16_t min_conn_int;
   uint16_t max_conn_int;
   uint16_t slave_latency;
   uint16_t supervision_tout;

 } tBTM_LE_CONN_PRAMS;

 typedef struct {
   RawAddress bd_addr;
   uint8_t attr;
   bool is_connected;
   bool in_use;
 } tBTM_LE_BG_CONN_DEV;

 /* white list using state as a bit mask */
 #define BTM_BLE_WL_IDLE 0
 #define BTM_BLE_WL_INIT 1
 typedef uint8_t tBTM_BLE_WL_STATE;

 /* resolving list using state as a bit mask */
 #define BTM_BLE_RL_IDLE 0
 #define BTM_BLE_RL_INIT 1
 #define BTM_BLE_RL_SCAN 2
 #define BTM_BLE_RL_ADV 4
 typedef uint8_t tBTM_BLE_RL_STATE;

 /* BLE connection state */
 #define BLE_CONN_IDLE 0
 #define BLE_DIR_CONN 1
 #define BLE_BG_CONN 2
 #define BLE_CONN_CANCEL 3
 typedef uint8_t tBTM_BLE_CONN_ST;

 typedef struct { void* p_param; } tBTM_BLE_CONN_REQ;

 /* LE state request */
 #define BTM_BLE_STATE_INVALID 0
 #define BTM_BLE_STATE_CONN_ADV 1
 #define BTM_BLE_STATE_INIT 2
 #define BTM_BLE_STATE_MASTER 3
 #define BTM_BLE_STATE_SLAVE 4
 #define BTM_BLE_STATE_LO_DUTY_DIR_ADV 5
 #define BTM_BLE_STATE_HI_DUTY_DIR_ADV 6
 #define BTM_BLE_STATE_NON_CONN_ADV 7
 #define BTM_BLE_STATE_PASSIVE_SCAN 8
 #define BTM_BLE_STATE_ACTIVE_SCAN 9
 #define BTM_BLE_STATE_SCAN_ADV 10
 #define BTM_BLE_STATE_MAX 11
 typedef uint8_t tBTM_BLE_STATE;

 #define BTM_BLE_STATE_CONN_ADV_BIT 0x0001
 #define BTM_BLE_STATE_INIT_BIT 0x0002
 #define BTM_BLE_STATE_MASTER_BIT 0x0004
 #define BTM_BLE_STATE_SLAVE_BIT 0x0008
 #define BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT 0x0010
 #define BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT 0x0020
 #define BTM_BLE_STATE_NON_CONN_ADV_BIT 0x0040
 #define BTM_BLE_STATE_PASSIVE_SCAN_BIT 0x0080
 #define BTM_BLE_STATE_ACTIVE_SCAN_BIT 0x0100
 #define BTM_BLE_STATE_SCAN_ADV_BIT 0x0200
 typedef uint16_t tBTM_BLE_STATE_MASK;

 #define BTM_BLE_STATE_ALL_MASK 0x03ff
 #define BTM_BLE_STATE_ALL_ADV_MASK                                  \
   (BTM_BLE_STATE_CONN_ADV_BIT | BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT | \
    BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT | BTM_BLE_STATE_SCAN_ADV_BIT)
 #define BTM_BLE_STATE_ALL_SCAN_MASK \
   (BTM_BLE_STATE_PASSIVE_SCAN_BIT | BTM_BLE_STATE_ACTIVE_SCAN_BIT)
 #define BTM_BLE_STATE_ALL_CONN_MASK \
   (BTM_BLE_STATE_MASTER_BIT | BTM_BLE_STATE_SLAVE_BIT)

 #ifndef BTM_LE_RESOLVING_LIST_MAX
 #define BTM_LE_RESOLVING_LIST_MAX 0x20
 #endif

 typedef struct {
   RawAddress* resolve_q_random_pseudo;
   uint8_t* resolve_q_action;
   uint8_t q_next;
   uint8_t q_pending;
 } tBTM_BLE_RESOLVE_Q;

 typedef struct {
   bool in_use;
   bool to_add;
   RawAddress bd_addr;
   uint8_t attr;
 } tBTM_BLE_WL_OP;

 /* BLE privacy mode */
 #define BTM_PRIVACY_NONE 0 /* BLE no privacy */
 #define BTM_PRIVACY_1_1 1  /* BLE privacy 1.1, do not support privacy 1.0 */
 #define BTM_PRIVACY_1_2 2  /* BLE privacy 1.2 */
 #define BTM_PRIVACY_MIXED \
   3 /* BLE privacy mixed mode, broadcom propietary mode */
 typedef uint8_t tBTM_PRIVACY_MODE;

 /* data length change event callback */
 typedef void(tBTM_DATA_LENGTH_CHANGE_CBACK)(uint16_t max_tx_length,
                                             uint16_t max_rx_length);

 /* Define BLE Device Management control structure
 */
 typedef struct {
   uint8_t scan_activity; /* LE scan activity mask */

   /*****************************************************
   **      BLE Inquiry
   *****************************************************/
   tBTM_BLE_INQ_CB inq_var;

   /* observer callback and timer */
   tBTM_INQ_RESULTS_CB* p_obs_results_cb;
   tBTM_CMPL_CB* p_obs_cmpl_cb;
   alarm_t* observer_timer;

   /* background connection procedure cb value */
   tBTM_BLE_CONN_TYPE bg_conn_type;
   uint32_t scan_int;
   uint32_t scan_win;

   /* white list information */
   tBTM_BLE_WL_STATE wl_state;

   fixed_queue_t* conn_pending_q;
   tBTM_BLE_CONN_ST conn_state;

   /* random address management control block */
   tBTM_LE_RANDOM_CB addr_mgnt_cb;

   bool enabled;

 #if (BLE_PRIVACY_SPT == TRUE)
   bool mixed_mode;                   /* privacy 1.2 mixed mode is on or not */
   tBTM_PRIVACY_MODE privacy_mode;    /* privacy mode */
   uint8_t resolving_list_avail_size; /* resolving list available size */
   tBTM_BLE_RESOLVE_Q resolving_list_pend_q; /* Resolving list queue */
   tBTM_BLE_RL_STATE suspended_rl_state;     /* Suspended resolving list state */
   uint8_t* irk_list_mask; /* IRK list availability mask, up to max entry bits */
   tBTM_BLE_RL_STATE rl_state; /* Resolving list state */
 #endif

   /* current BLE link state */
   tBTM_BLE_STATE_MASK cur_states; /* bit mask of tBTM_BLE_STATE */
   uint8_t link_count[2];          /* total link count master and slave*/
 } tBTM_BLE_CB;

 #endif  // BTM_BLE_INT_TYPES_H
	/******************************************************************************
	*
	* Copyright (C) 1999-2012 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.
	*
	******************************************************************************/

	#ifndef BTM_BLE_INT_TYPES_H
	#define BTM_BLE_INT_TYPES_H

	#include "osi/include/alarm.h"

	/* scanning enable status */
	#define BTM_BLE_SCAN_ENABLE 0x01
	#define BTM_BLE_SCAN_DISABLE 0x00

	/* advertising enable status */
	#define BTM_BLE_ADV_ENABLE 0x01
	#define BTM_BLE_ADV_DISABLE 0x00

	/* use the high 4 bits unused by inquiry mode */
	#define BTM_BLE_SELECT_SCAN 0x20
	#define BTM_BLE_NAME_REQUEST 0x40
	#define BTM_BLE_OBSERVE 0x80

	#define BTM_BLE_MAX_WL_ENTRY 1
	#define BTM_BLE_AD_DATA_LEN 31

	#define BTM_BLE_ENC_MASK 0x03

	#define BTM_BLE_DUPLICATE_ENABLE 1
	#define BTM_BLE_DUPLICATE_DISABLE 0

	/* Interval(scan_int) = 11.25 ms= 0x0010 * 0.625 ms */
	#define BTM_BLE_GAP_DISC_SCAN_INT 18
	/* scan_window = 11.25 ms= 0x0010 * 0.625 ms */
	#define BTM_BLE_GAP_DISC_SCAN_WIN 18
	/* Tgap(gen_disc) = 1.28 s= 512 * 0.625 ms */
	#define BTM_BLE_GAP_ADV_INT 512
	/* Tgap(lim_timeout) = 180s max */
	#define BTM_BLE_GAP_LIM_TIMEOUT_MS (180 * 1000)
	/* Interval(scan_int) = 5s= 8000 * 0.625 ms */
	#define BTM_BLE_LOW_LATENCY_SCAN_INT 8000
	/* scan_window = 5s= 8000 * 0.625 ms */
	#define BTM_BLE_LOW_LATENCY_SCAN_WIN 8000

	/* TGAP(adv_fast_interval1) = 30(used) ~ 60 ms = 48 0.625 /
	#define BTM_BLE_GAP_ADV_FAST_INT_1 48
	/* TGAP(adv_fast_interval2) = 100(used) ~ 150 ms = 160 * 0.625 ms */
	#define BTM_BLE_GAP_ADV_FAST_INT_2 160
	/* Tgap(adv_slow_interval) = 1.28 s= 512 * 0.625 ms */
	#define BTM_BLE_GAP_ADV_SLOW_INT 2048
	/* Tgap(dir_conn_adv_int_max) = 500 ms = 800 * 0.625 ms */
	#define BTM_BLE_GAP_ADV_DIR_MAX_INT 800
	/* Tgap(dir_conn_adv_int_min) = 250 ms = 400 * 0.625 ms */
	#define BTM_BLE_GAP_ADV_DIR_MIN_INT 400

	#define BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS (30 * 1000)

	#define BTM_BLE_SEC_REQ_ACT_NONE 0
	/* encrypt the link using current key or key refresh */
	#define BTM_BLE_SEC_REQ_ACT_ENCRYPT 1
	#define BTM_BLE_SEC_REQ_ACT_PAIR 2
	/* discard the sec request while encryption is started but not completed */
	#define BTM_BLE_SEC_REQ_ACT_DISCARD 3
	typedef uint8_t tBTM_BLE_SEC_REQ_ACT;

	#define BLE_STATIC_PRIVATE_MSB_MASK 0x3f
	/* most significant bit, bit7, bit6 is 01 to be resolvable random */
	#define BLE_RESOLVE_ADDR_MSB 0x40
	/* bit 6, and bit7 */
	#define BLE_RESOLVE_ADDR_MASK 0xc0
	inline bool BTM_BLE_IS_RESOLVE_BDA(const RawAddress& x) {
	return ((x.address)[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB;
	}

	#define BLE_PUBLIC_ADDR_MSB_MASK 0xC0
	/* most significant bit, bit7, bit6 is 10 to be public address*/
	#define BLE_PUBLIC_ADDR_MSB 0x80
	inline bool BTM_IS_PUBLIC_BDA(const RawAddress& x) {
	return ((x.address)[0] & BLE_PUBLIC_ADDR_MSB_MASK) == BLE_PUBLIC_ADDR_MSB;
	}

	/* LE scan activity bit mask, continue with LE inquiry bits */
	/* observe is in progress */
	#define BTM_LE_OBSERVE_ACTIVE 0x80

	/* BLE scan activity mask checking */
	#define BTM_BLE_IS_SCAN_ACTIVE(x) ((x)&BTM_BLE_SCAN_ACTIVE_MASK)
	#define BTM_BLE_IS_INQ_ACTIVE(x) ((x)&BTM_BLE_INQUIRY_MASK)
	#define BTM_BLE_IS_OBS_ACTIVE(x) ((x)&BTM_LE_OBSERVE_ACTIVE)

	/* BLE ADDR type ID bit */
	#define BLE_ADDR_TYPE_ID_BIT 0x02

	#define BTM_VSC_CHIP_CAPABILITY_L_VERSION 55
	#define BTM_VSC_CHIP_CAPABILITY_M_VERSION 95

	typedef struct {
	uint16_t data_mask;
	uint8_t* p_flags;
	uint8_t ad_data[BTM_BLE_AD_DATA_LEN];
	uint8_t* p_pad;
	} tBTM_BLE_LOCAL_ADV_DATA;

	typedef struct {
	/* Used for determining if a response has already been received for the
	* current inquiry operation. (We do not want to flood the caller with
	* multiple responses from the same device. */
	uint32_t inq_count;
	bool scan_rsp;
	tBLE_BD_ADDR le_bda;
	} tINQ_LE_BDADDR;

	#define BTM_BLE_ISVALID_PARAM(x, min, max) \
	(((x) >= (min) && (x) <= (max)) \|\| ((x) == BTM_BLE_CONN_PARAM_UNDEF))

	/* 15 minutes minimum for random address refreshing */
	#define BTM_BLE_PRIVATE_ADDR_INT_MS (15 * 60 * 1000)

	typedef struct {
	uint16_t discoverable_mode;
	uint16_t connectable_mode;
	uint32_t scan_window;
	uint32_t scan_interval;
	uint8_t scan_type; /* current scan type: active or passive */
	uint8_t scan_duplicate_filter; /* duplicate filter enabled for scan */
	uint16_t adv_interval_min;
	uint16_t adv_interval_max;
	tBTM_BLE_AFP afp; /* advertising filter policy */
	tBTM_BLE_SFP sfp; /* scanning filter policy */

	tBLE_ADDR_TYPE adv_addr_type;
	uint8_t evt_type;
	uint8_t adv_mode;
	tBLE_BD_ADDR direct_bda;
	tBTM_BLE_EVT directed_conn;
	bool fast_adv_on;
	alarm_t* fast_adv_timer;

	/* inquiry BD addr database */
	uint8_t num_bd_entries;
	uint8_t max_bd_entries;
	tBTM_BLE_LOCAL_ADV_DATA adv_data;
	tBTM_BLE_ADV_CHNL_MAP adv_chnl_map;

	alarm_t* inquiry_timer;
	bool scan_rsp;
	uint8_t state; /* Current state that the inquiry process is in */
	int8_t tx_power;
	} tBTM_BLE_INQ_CB;

	/* random address resolving complete callback */
	typedef void(tBTM_BLE_RESOLVE_CBACK)(void* match_rec, void* p);

	typedef void(tBTM_BLE_ADDR_CBACK)(const RawAddress& static_random, void* p);

	/* random address management control block */
	typedef struct {
	tBLE_ADDR_TYPE own_addr_type; /* local device LE address type */
	RawAddress private_addr;
	RawAddress random_bda;
	tBTM_BLE_ADDR_CBACK* p_generate_cback;
	void* p;
	alarm_t* refresh_raddr_timer;
	} tBTM_LE_RANDOM_CB;

	typedef struct {
	uint16_t min_conn_int;
	uint16_t max_conn_int;
	uint16_t slave_latency;
	uint16_t supervision_tout;

	} tBTM_LE_CONN_PRAMS;

	typedef struct {
	RawAddress bd_addr;
	uint8_t attr;
	bool is_connected;
	bool in_use;
	} tBTM_LE_BG_CONN_DEV;

	/* white list using state as a bit mask */
	#define BTM_BLE_WL_IDLE 0
	#define BTM_BLE_WL_INIT 1
	typedef uint8_t tBTM_BLE_WL_STATE;

	/* resolving list using state as a bit mask */
	#define BTM_BLE_RL_IDLE 0
	#define BTM_BLE_RL_INIT 1
	#define BTM_BLE_RL_SCAN 2
	#define BTM_BLE_RL_ADV 4
	typedef uint8_t tBTM_BLE_RL_STATE;

	/* BLE connection state */
	#define BLE_CONN_IDLE 0
	#define BLE_DIR_CONN 1
	#define BLE_BG_CONN 2
	#define BLE_CONN_CANCEL 3
	typedef uint8_t tBTM_BLE_CONN_ST;

	typedef struct { void* p_param; } tBTM_BLE_CONN_REQ;

	/* LE state request */
	#define BTM_BLE_STATE_INVALID 0
	#define BTM_BLE_STATE_CONN_ADV 1
	#define BTM_BLE_STATE_INIT 2
	#define BTM_BLE_STATE_MASTER 3
	#define BTM_BLE_STATE_SLAVE 4
	#define BTM_BLE_STATE_LO_DUTY_DIR_ADV 5
	#define BTM_BLE_STATE_HI_DUTY_DIR_ADV 6
	#define BTM_BLE_STATE_NON_CONN_ADV 7
	#define BTM_BLE_STATE_PASSIVE_SCAN 8
	#define BTM_BLE_STATE_ACTIVE_SCAN 9
	#define BTM_BLE_STATE_SCAN_ADV 10
	#define BTM_BLE_STATE_MAX 11
	typedef uint8_t tBTM_BLE_STATE;

	#define BTM_BLE_STATE_CONN_ADV_BIT 0x0001
	#define BTM_BLE_STATE_INIT_BIT 0x0002
	#define BTM_BLE_STATE_MASTER_BIT 0x0004
	#define BTM_BLE_STATE_SLAVE_BIT 0x0008
	#define BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT 0x0010
	#define BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT 0x0020
	#define BTM_BLE_STATE_NON_CONN_ADV_BIT 0x0040
	#define BTM_BLE_STATE_PASSIVE_SCAN_BIT 0x0080
	#define BTM_BLE_STATE_ACTIVE_SCAN_BIT 0x0100
	#define BTM_BLE_STATE_SCAN_ADV_BIT 0x0200
	typedef uint16_t tBTM_BLE_STATE_MASK;

	#define BTM_BLE_STATE_ALL_MASK 0x03ff
	#define BTM_BLE_STATE_ALL_ADV_MASK \
	(BTM_BLE_STATE_CONN_ADV_BIT \| BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT \| \
	BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT \| BTM_BLE_STATE_SCAN_ADV_BIT)
	#define BTM_BLE_STATE_ALL_SCAN_MASK \
	(BTM_BLE_STATE_PASSIVE_SCAN_BIT \| BTM_BLE_STATE_ACTIVE_SCAN_BIT)
	#define BTM_BLE_STATE_ALL_CONN_MASK \
	(BTM_BLE_STATE_MASTER_BIT \| BTM_BLE_STATE_SLAVE_BIT)

	#ifndef BTM_LE_RESOLVING_LIST_MAX
	#define BTM_LE_RESOLVING_LIST_MAX 0x20
	#endif

	typedef struct {
	RawAddress* resolve_q_random_pseudo;
	uint8_t* resolve_q_action;
	uint8_t q_next;
	uint8_t q_pending;
	} tBTM_BLE_RESOLVE_Q;

	typedef struct {
	bool in_use;
	bool to_add;
	RawAddress bd_addr;
	uint8_t attr;
	} tBTM_BLE_WL_OP;

	/* BLE privacy mode */
	#define BTM_PRIVACY_NONE 0 /* BLE no privacy */
	#define BTM_PRIVACY_1_1 1 /* BLE privacy 1.1, do not support privacy 1.0 */
	#define BTM_PRIVACY_1_2 2 /* BLE privacy 1.2 */
	#define BTM_PRIVACY_MIXED \
	3 /* BLE privacy mixed mode, broadcom propietary mode */
	typedef uint8_t tBTM_PRIVACY_MODE;

	/* data length change event callback */
	typedef void(tBTM_DATA_LENGTH_CHANGE_CBACK)(uint16_t max_tx_length,
	uint16_t max_rx_length);

	/* Define BLE Device Management control structure
	*/
	typedef struct {
	uint8_t scan_activity; /* LE scan activity mask */

	/*****************************************************
	** BLE Inquiry
	*****************************************************/
	tBTM_BLE_INQ_CB inq_var;

	/* observer callback and timer */
	tBTM_INQ_RESULTS_CB* p_obs_results_cb;
	tBTM_CMPL_CB* p_obs_cmpl_cb;
	alarm_t* observer_timer;

	/* background connection procedure cb value */
	tBTM_BLE_CONN_TYPE bg_conn_type;
	uint32_t scan_int;
	uint32_t scan_win;

	/* white list information */
	tBTM_BLE_WL_STATE wl_state;

	fixed_queue_t* conn_pending_q;
	tBTM_BLE_CONN_ST conn_state;

	/* random address management control block */
	tBTM_LE_RANDOM_CB addr_mgnt_cb;

	bool enabled;

	#if (BLE_PRIVACY_SPT == TRUE)
	bool mixed_mode; /* privacy 1.2 mixed mode is on or not */
	tBTM_PRIVACY_MODE privacy_mode; /* privacy mode */
	uint8_t resolving_list_avail_size; /* resolving list available size */
	tBTM_BLE_RESOLVE_Q resolving_list_pend_q; /* Resolving list queue */
	tBTM_BLE_RL_STATE suspended_rl_state; /* Suspended resolving list state */
	uint8_t* irk_list_mask; /* IRK list availability mask, up to max entry bits */
	tBTM_BLE_RL_STATE rl_state; /* Resolving list state */
	#endif

	/* current BLE link state */
	tBTM_BLE_STATE_MASK cur_states; /* bit mask of tBTM_BLE_STATE */
	uint8_t link_count[2]; /* total link count master and slave*/
	} tBTM_BLE_CB;

	#endif // BTM_BLE_INT_TYPES_H