1 /******************************************************************************
2  *
3  *  Copyright (C) 1999-2012 Broadcom Corporation
4  *
5  *  Licensed under the Apache License, Version 2.0 (the "License");
6  *  you may not use this file except in compliance with the License.
7  *  You may obtain a copy of the License at:
8  *
9  *  http://www.apache.org/licenses/LICENSE-2.0
10  *
11  *  Unless required by applicable law or agreed to in writing, software
12  *  distributed under the License is distributed on an "AS IS" BASIS,
13  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14  *  See the License for the specific language governing permissions and
15  *  limitations under the License.
16  *
17  ******************************************************************************/
18 
19 #ifndef BTM_BLE_INT_TYPES_H
20 #define BTM_BLE_INT_TYPES_H
21 
22 #include "osi/include/alarm.h"
23 
24 /* scanning enable status */
25 #define BTM_BLE_SCAN_ENABLE 0x01
26 #define BTM_BLE_SCAN_DISABLE 0x00
27 
28 /* advertising enable status */
29 #define BTM_BLE_ADV_ENABLE 0x01
30 #define BTM_BLE_ADV_DISABLE 0x00
31 
32 /* use the high 4 bits unused by inquiry mode */
33 #define BTM_BLE_SELECT_SCAN 0x20
34 #define BTM_BLE_NAME_REQUEST 0x40
35 #define BTM_BLE_OBSERVE 0x80
36 
37 #define BTM_BLE_MAX_WL_ENTRY 1
38 #define BTM_BLE_AD_DATA_LEN 31
39 
40 #define BTM_BLE_ENC_MASK 0x03
41 
42 #define BTM_BLE_DUPLICATE_ENABLE 1
43 #define BTM_BLE_DUPLICATE_DISABLE 0
44 
45 /* Interval(scan_int) = 11.25 ms= 0x0010 * 0.625 ms */
46 #define BTM_BLE_GAP_DISC_SCAN_INT 18
47 /* scan_window = 11.25 ms= 0x0010 * 0.625 ms */
48 #define BTM_BLE_GAP_DISC_SCAN_WIN 18
49 /* Tgap(gen_disc) = 1.28 s= 512 * 0.625 ms */
50 #define BTM_BLE_GAP_ADV_INT 512
51 /* Tgap(lim_timeout) = 180s max */
52 #define BTM_BLE_GAP_LIM_TIMEOUT_MS (180 * 1000)
53 /* Interval(scan_int) = 5s= 8000 * 0.625 ms */
54 #define BTM_BLE_LOW_LATENCY_SCAN_INT 8000
55 /* scan_window = 5s= 8000 * 0.625 ms */
56 #define BTM_BLE_LOW_LATENCY_SCAN_WIN 8000
57 
58 /* TGAP(adv_fast_interval1) = 30(used) ~ 60 ms  = 48 *0.625 */
59 #define BTM_BLE_GAP_ADV_FAST_INT_1 48
60 /* TGAP(adv_fast_interval2) = 100(used) ~ 150 ms = 160 * 0.625 ms */
61 #define BTM_BLE_GAP_ADV_FAST_INT_2 160
62 /* Tgap(adv_slow_interval) = 1.28 s= 512 * 0.625 ms */
63 #define BTM_BLE_GAP_ADV_SLOW_INT 2048
64 /* Tgap(dir_conn_adv_int_max) = 500 ms = 800 * 0.625 ms */
65 #define BTM_BLE_GAP_ADV_DIR_MAX_INT 800
66 /* Tgap(dir_conn_adv_int_min) = 250 ms = 400 * 0.625 ms */
67 #define BTM_BLE_GAP_ADV_DIR_MIN_INT 400
68 
69 #define BTM_BLE_GAP_FAST_ADV_TIMEOUT_MS (30 * 1000)
70 
71 #define BTM_BLE_SEC_REQ_ACT_NONE 0
72 /* encrypt the link using current key or key refresh */
73 #define BTM_BLE_SEC_REQ_ACT_ENCRYPT 1
74 #define BTM_BLE_SEC_REQ_ACT_PAIR 2
75 /* discard the sec request while encryption is started but not completed */
76 #define BTM_BLE_SEC_REQ_ACT_DISCARD 3
77 typedef uint8_t tBTM_BLE_SEC_REQ_ACT;
78 
79 #define BLE_STATIC_PRIVATE_MSB_MASK 0x3f
80 /*  most significant bit, bit7, bit6 is 01 to be resolvable random */
81 #define BLE_RESOLVE_ADDR_MSB 0x40
82 /* bit 6, and bit7 */
83 #define BLE_RESOLVE_ADDR_MASK 0xc0
84 #define BTM_BLE_IS_RESOLVE_BDA(x) \
85   (((x)[0] & BLE_RESOLVE_ADDR_MASK) == BLE_RESOLVE_ADDR_MSB)
86 
87 #define BLE_PUBLIC_ADDR_MSB_MASK 0xC0
88 /*  most significant bit, bit7, bit6 is 10 to be public address*/
89 #define BLE_PUBLIC_ADDR_MSB 0x80
90 #define BTM_IS_PUBLIC_BDA(x) \
91   (((x)[0] & BLE_PUBLIC_ADDR_MSB_MASK) == BLE_PUBLIC_ADDR_MSB)
92 
93 /* LE scan activity bit mask, continue with LE inquiry bits */
94 /* observe is in progress */
95 #define BTM_LE_OBSERVE_ACTIVE 0x80
96 
97 /* BLE scan activity mask checking */
98 #define BTM_BLE_IS_SCAN_ACTIVE(x) ((x)&BTM_BLE_SCAN_ACTIVE_MASK)
99 #define BTM_BLE_IS_INQ_ACTIVE(x) ((x)&BTM_BLE_INQUIRY_MASK)
100 #define BTM_BLE_IS_OBS_ACTIVE(x) ((x)&BTM_LE_OBSERVE_ACTIVE)
101 
102 /* BLE ADDR type ID bit */
103 #define BLE_ADDR_TYPE_ID_BIT 0x02
104 
105 #define BTM_VSC_CHIP_CAPABILITY_L_VERSION 55
106 #define BTM_VSC_CHIP_CAPABILITY_M_VERSION 95
107 
108 typedef struct {
109   uint16_t data_mask;
110   uint8_t* p_flags;
111   uint8_t ad_data[BTM_BLE_AD_DATA_LEN];
112   uint8_t* p_pad;
113 } tBTM_BLE_LOCAL_ADV_DATA;
114 
115 typedef struct {
116   /* Used for determining if a response has already been received for the
117    * current inquiry operation. (We do not want to flood the caller with
118    * multiple responses from the same device. */
119   uint32_t inq_count;
120   bool scan_rsp;
121   tBLE_BD_ADDR le_bda;
122 } tINQ_LE_BDADDR;
123 
124 #define BTM_BLE_ISVALID_PARAM(x, min, max) \
125   (((x) >= (min) && (x) <= (max)) || ((x) == BTM_BLE_CONN_PARAM_UNDEF))
126 
127 /* 15 minutes minimum for random address refreshing */
128 #define BTM_BLE_PRIVATE_ADDR_INT_MS (15 * 60 * 1000)
129 
130 typedef struct {
131   uint16_t discoverable_mode;
132   uint16_t connectable_mode;
133   uint32_t scan_window;
134   uint32_t scan_interval;
135   uint8_t scan_type;             /* current scan type: active or passive */
136   uint8_t scan_duplicate_filter; /* duplicate filter enabled for scan */
137   uint16_t adv_interval_min;
138   uint16_t adv_interval_max;
139   tBTM_BLE_AFP afp; /* advertising filter policy */
140   tBTM_BLE_SFP sfp; /* scanning filter policy */
141 
142   tBLE_ADDR_TYPE adv_addr_type;
143   uint8_t evt_type;
144   uint8_t adv_mode;
145   tBLE_BD_ADDR direct_bda;
146   tBTM_BLE_EVT directed_conn;
147   bool fast_adv_on;
148   alarm_t* fast_adv_timer;
149 
150   /* inquiry BD addr database */
151   uint8_t num_bd_entries;
152   uint8_t max_bd_entries;
153   tBTM_BLE_LOCAL_ADV_DATA adv_data;
154   tBTM_BLE_ADV_CHNL_MAP adv_chnl_map;
155 
156   alarm_t* inquiry_timer;
157   bool scan_rsp;
158   uint8_t state; /* Current state that the inquiry process is in */
159   int8_t tx_power;
160 } tBTM_BLE_INQ_CB;
161 
162 /* random address resolving complete callback */
163 typedef void(tBTM_BLE_RESOLVE_CBACK)(void* match_rec, void* p);
164 
165 typedef void(tBTM_BLE_ADDR_CBACK)(BD_ADDR_PTR static_random, void* p);
166 
167 /* random address management control block */
168 typedef struct {
169   tBLE_ADDR_TYPE own_addr_type; /* local device LE address type */
170   BD_ADDR private_addr;
171   BD_ADDR random_bda;
172   tBTM_BLE_ADDR_CBACK* p_generate_cback;
173   void* p;
174   alarm_t* refresh_raddr_timer;
175 } tBTM_LE_RANDOM_CB;
176 
177 #define BTM_BLE_MAX_BG_CONN_DEV_NUM 10
178 
179 typedef struct {
180   uint16_t min_conn_int;
181   uint16_t max_conn_int;
182   uint16_t slave_latency;
183   uint16_t supervision_tout;
184 
185 } tBTM_LE_CONN_PRAMS;
186 
187 typedef struct {
188   BD_ADDR bd_addr;
189   uint8_t attr;
190   bool is_connected;
191   bool in_use;
192 } tBTM_LE_BG_CONN_DEV;
193 
194 /* white list using state as a bit mask */
195 #define BTM_BLE_WL_IDLE 0
196 #define BTM_BLE_WL_INIT 1
197 #define BTM_BLE_WL_ADV 4
198 typedef uint8_t tBTM_BLE_WL_STATE;
199 
200 /* resolving list using state as a bit mask */
201 #define BTM_BLE_RL_IDLE 0
202 #define BTM_BLE_RL_INIT 1
203 #define BTM_BLE_RL_SCAN 2
204 #define BTM_BLE_RL_ADV 4
205 typedef uint8_t tBTM_BLE_RL_STATE;
206 
207 /* BLE connection state */
208 #define BLE_CONN_IDLE 0
209 #define BLE_DIR_CONN 1
210 #define BLE_BG_CONN 2
211 #define BLE_CONN_CANCEL 3
212 typedef uint8_t tBTM_BLE_CONN_ST;
213 
214 typedef struct { void* p_param; } tBTM_BLE_CONN_REQ;
215 
216 /* LE state request */
217 #define BTM_BLE_STATE_INVALID 0
218 #define BTM_BLE_STATE_CONN_ADV 1
219 #define BTM_BLE_STATE_INIT 2
220 #define BTM_BLE_STATE_MASTER 3
221 #define BTM_BLE_STATE_SLAVE 4
222 #define BTM_BLE_STATE_LO_DUTY_DIR_ADV 5
223 #define BTM_BLE_STATE_HI_DUTY_DIR_ADV 6
224 #define BTM_BLE_STATE_NON_CONN_ADV 7
225 #define BTM_BLE_STATE_PASSIVE_SCAN 8
226 #define BTM_BLE_STATE_ACTIVE_SCAN 9
227 #define BTM_BLE_STATE_SCAN_ADV 10
228 #define BTM_BLE_STATE_MAX 11
229 typedef uint8_t tBTM_BLE_STATE;
230 
231 #define BTM_BLE_STATE_CONN_ADV_BIT 0x0001
232 #define BTM_BLE_STATE_INIT_BIT 0x0002
233 #define BTM_BLE_STATE_MASTER_BIT 0x0004
234 #define BTM_BLE_STATE_SLAVE_BIT 0x0008
235 #define BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT 0x0010
236 #define BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT 0x0020
237 #define BTM_BLE_STATE_NON_CONN_ADV_BIT 0x0040
238 #define BTM_BLE_STATE_PASSIVE_SCAN_BIT 0x0080
239 #define BTM_BLE_STATE_ACTIVE_SCAN_BIT 0x0100
240 #define BTM_BLE_STATE_SCAN_ADV_BIT 0x0200
241 typedef uint16_t tBTM_BLE_STATE_MASK;
242 
243 #define BTM_BLE_STATE_ALL_MASK 0x03ff
244 #define BTM_BLE_STATE_ALL_ADV_MASK                                  \
245   (BTM_BLE_STATE_CONN_ADV_BIT | BTM_BLE_STATE_LO_DUTY_DIR_ADV_BIT | \
246    BTM_BLE_STATE_HI_DUTY_DIR_ADV_BIT | BTM_BLE_STATE_SCAN_ADV_BIT)
247 #define BTM_BLE_STATE_ALL_SCAN_MASK \
248   (BTM_BLE_STATE_PASSIVE_SCAN_BIT | BTM_BLE_STATE_ACTIVE_SCAN_BIT)
249 #define BTM_BLE_STATE_ALL_CONN_MASK \
250   (BTM_BLE_STATE_MASTER_BIT | BTM_BLE_STATE_SLAVE_BIT)
251 
252 #ifndef BTM_LE_RESOLVING_LIST_MAX
253 #define BTM_LE_RESOLVING_LIST_MAX 0x20
254 #endif
255 
256 typedef struct {
257   BD_ADDR* resolve_q_random_pseudo;
258   uint8_t* resolve_q_action;
259   uint8_t q_next;
260   uint8_t q_pending;
261 } tBTM_BLE_RESOLVE_Q;
262 
263 typedef struct {
264   bool in_use;
265   bool to_add;
266   BD_ADDR bd_addr;
267   uint8_t attr;
268 } tBTM_BLE_WL_OP;
269 
270 /* BLE privacy mode */
271 #define BTM_PRIVACY_NONE 0 /* BLE no privacy */
272 #define BTM_PRIVACY_1_1 1  /* BLE privacy 1.1, do not support privacy 1.0 */
273 #define BTM_PRIVACY_1_2 2  /* BLE privacy 1.2 */
274 #define BTM_PRIVACY_MIXED \
275   3 /* BLE privacy mixed mode, broadcom propietary mode */
276 typedef uint8_t tBTM_PRIVACY_MODE;
277 
278 /* data length change event callback */
279 typedef void(tBTM_DATA_LENGTH_CHANGE_CBACK)(uint16_t max_tx_length,
280                                             uint16_t max_rx_length);
281 
282 /* Define BLE Device Management control structure
283 */
284 typedef struct {
285   uint8_t scan_activity; /* LE scan activity mask */
286 
287   /*****************************************************
288   **      BLE Inquiry
289   *****************************************************/
290   tBTM_BLE_INQ_CB inq_var;
291 
292   /* observer callback and timer */
293   tBTM_INQ_RESULTS_CB* p_obs_results_cb;
294   tBTM_CMPL_CB* p_obs_cmpl_cb;
295   alarm_t* observer_timer;
296 
297   /* background connection procedure cb value */
298   tBTM_BLE_CONN_TYPE bg_conn_type;
299   uint32_t scan_int;
300   uint32_t scan_win;
301 
302   /* white list information */
303   uint8_t white_list_avail_size;
304   tBTM_BLE_WL_STATE wl_state;
305 
306   fixed_queue_t* conn_pending_q;
307   tBTM_BLE_CONN_ST conn_state;
308 
309   /* random address management control block */
310   tBTM_LE_RANDOM_CB addr_mgnt_cb;
311 
312   bool enabled;
313 
314 #if (BLE_PRIVACY_SPT == TRUE)
315   bool mixed_mode;                   /* privacy 1.2 mixed mode is on or not */
316   tBTM_PRIVACY_MODE privacy_mode;    /* privacy mode */
317   uint8_t resolving_list_avail_size; /* resolving list available size */
318   tBTM_BLE_RESOLVE_Q resolving_list_pend_q; /* Resolving list queue */
319   tBTM_BLE_RL_STATE suspended_rl_state;     /* Suspended resolving list state */
320   uint8_t* irk_list_mask; /* IRK list availability mask, up to max entry bits */
321   tBTM_BLE_RL_STATE rl_state; /* Resolving list state */
322 #endif
323 
324   tBTM_BLE_WL_OP wl_op_q[BTM_BLE_MAX_BG_CONN_DEV_NUM];
325 
326   /* current BLE link state */
327   tBTM_BLE_STATE_MASK cur_states; /* bit mask of tBTM_BLE_STATE */
328   uint8_t link_count[2];          /* total link count master and slave*/
329 } tBTM_BLE_CB;
330 
331 #endif  // BTM_BLE_INT_TYPES_H
332