bluetooth.cc revision ee96a3c60fca590d38025925c072d264e06493c4 
1/******************************************************************************
2 *
3 *  Copyright (C) 2009-2012 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/*******************************************************************************
20 *
21 *  Filename:      bluetooth.c
22 *
23 *  Description:   Bluetooth HAL implementation
24 *
25 ******************************************************************************/
26
27#define LOG_TAG "bt_btif"
28
29#include <assert.h>
30#include <stdio.h>
31#include <stdlib.h>
32#include <string.h>
33#include <unistd.h>
34
35#include <hardware/bluetooth.h>
36#include <hardware/bt_av.h>
37#include <hardware/bt_gatt.h>
38#include <hardware/bt_hf.h>
39#include <hardware/bt_hf_client.h>
40#include <hardware/bt_hh.h>
41#include <hardware/bt_hl.h>
42#include <hardware/bt_mce.h>
43#include <hardware/bt_pan.h>
44#include <hardware/bt_rc.h>
45#include <hardware/bt_sdp.h>
46#include <hardware/bt_sock.h>
47
48#include "bt_utils.h"
49#include "btif/include/btif_debug_btsnoop.h"
50#include "btif/include/btif_debug_conn.h"
51#include "btif_a2dp.h"
52#include "btif_api.h"
53#include "btif_config.h"
54#include "btif_debug.h"
55#include "btif_storage.h"
56#include "btsnoop.h"
57#include "btsnoop_mem.h"
58#include "device/include/interop.h"
59#include "osi/include/alarm.h"
60#include "osi/include/allocation_tracker.h"
61#include "osi/include/log.h"
62#include "osi/include/metrics.h"
63#include "osi/include/osi.h"
64#include "osi/include/wakelock.h"
65#include "stack_manager.h"
66
67/*******************************************************************************
68 *  Static variables
69 ******************************************************************************/
70
71bt_callbacks_t* bt_hal_cbacks = NULL;
72bool restricted_mode = false;
73
74/*******************************************************************************
75 *  Externs
76 ******************************************************************************/
77
78/* list all extended interfaces here */
79
80/* handsfree profile */
81extern bthf_interface_t* btif_hf_get_interface();
82/* handsfree profile - client */
83extern bthf_client_interface_t* btif_hf_client_get_interface();
84/* advanced audio profile */
85extern btav_interface_t* btif_av_get_src_interface();
86extern btav_interface_t* btif_av_get_sink_interface();
87/*rfc l2cap*/
88extern btsock_interface_t* btif_sock_get_interface();
89/* hid host profile */
90extern bthh_interface_t* btif_hh_get_interface();
91/* health device profile */
92extern bthl_interface_t* btif_hl_get_interface();
93/*pan*/
94extern btpan_interface_t* btif_pan_get_interface();
95/*map client*/
96extern btmce_interface_t* btif_mce_get_interface();
97/* gatt */
98extern const btgatt_interface_t* btif_gatt_get_interface();
99/* avrc target */
100extern btrc_interface_t* btif_rc_get_interface();
101/* avrc controller */
102extern btrc_interface_t* btif_rc_ctrl_get_interface();
103/*SDP search client*/
104extern btsdp_interface_t* btif_sdp_get_interface();
105
106/*******************************************************************************
107 *  Functions
108 ******************************************************************************/
109
110static bool interface_ready(void) { return bt_hal_cbacks != NULL; }
111
112static bool is_profile(const char* p1, const char* p2) {
113  assert(p1);
114  assert(p2);
115  return strlen(p1) == strlen(p2) && strncmp(p1, p2, strlen(p2)) == 0;
116}
117
118/*****************************************************************************
119 *
120 *   BLUETOOTH HAL INTERFACE FUNCTIONS
121 *
122 ****************************************************************************/
123
124static int init(bt_callbacks_t* callbacks) {
125  LOG_INFO(LOG_TAG, "%s", __func__);
126
127  if (interface_ready()) return BT_STATUS_DONE;
128
129#ifdef BLUEDROID_DEBUG
130  allocation_tracker_init();
131#endif
132
133  bt_hal_cbacks = callbacks;
134  stack_manager_get_interface()->init_stack();
135  btif_debug_init();
136  return BT_STATUS_SUCCESS;
137}
138
139static int enable(bool start_restricted) {
140  LOG_INFO(LOG_TAG, "%s: start restricted = %d", __func__, start_restricted);
141
142  restricted_mode = start_restricted;
143
144  if (!interface_ready()) return BT_STATUS_NOT_READY;
145
146  stack_manager_get_interface()->start_up_stack_async();
147  return BT_STATUS_SUCCESS;
148}
149
150static int disable(void) {
151  if (!interface_ready()) return BT_STATUS_NOT_READY;
152
153  stack_manager_get_interface()->shut_down_stack_async();
154  return BT_STATUS_SUCCESS;
155}
156
157static void cleanup(void) { stack_manager_get_interface()->clean_up_stack(); }
158
159bool is_restricted_mode() { return restricted_mode; }
160
161static int get_adapter_properties(void) {
162  /* sanity check */
163  if (interface_ready() == false) return BT_STATUS_NOT_READY;
164
165  return btif_get_adapter_properties();
166}
167
168static int get_adapter_property(bt_property_type_t type) {
169  /* sanity check */
170  if (interface_ready() == false) return BT_STATUS_NOT_READY;
171
172  return btif_get_adapter_property(type);
173}
174
175static int set_adapter_property(const bt_property_t* property) {
176  /* sanity check */
177  if (interface_ready() == false) return BT_STATUS_NOT_READY;
178
179  return btif_set_adapter_property(property);
180}
181
182int get_remote_device_properties(bt_bdaddr_t* remote_addr) {
183  /* sanity check */
184  if (interface_ready() == false) return BT_STATUS_NOT_READY;
185
186  return btif_get_remote_device_properties(remote_addr);
187}
188
189int get_remote_device_property(bt_bdaddr_t* remote_addr,
190                               bt_property_type_t type) {
191  /* sanity check */
192  if (interface_ready() == false) return BT_STATUS_NOT_READY;
193
194  return btif_get_remote_device_property(remote_addr, type);
195}
196
197int set_remote_device_property(bt_bdaddr_t* remote_addr,
198                               const bt_property_t* property) {
199  /* sanity check */
200  if (interface_ready() == false) return BT_STATUS_NOT_READY;
201
202  return btif_set_remote_device_property(remote_addr, property);
203}
204
205int get_remote_service_record(bt_bdaddr_t* remote_addr, bt_uuid_t* uuid) {
206  /* sanity check */
207  if (interface_ready() == false) return BT_STATUS_NOT_READY;
208
209  return btif_get_remote_service_record(remote_addr, uuid);
210}
211
212int get_remote_services(bt_bdaddr_t* remote_addr) {
213  /* sanity check */
214  if (interface_ready() == false) return BT_STATUS_NOT_READY;
215
216  return btif_dm_get_remote_services(remote_addr);
217}
218
219static int start_discovery(void) {
220  /* sanity check */
221  if (interface_ready() == false) return BT_STATUS_NOT_READY;
222
223  return btif_dm_start_discovery();
224}
225
226static int cancel_discovery(void) {
227  /* sanity check */
228  if (interface_ready() == false) return BT_STATUS_NOT_READY;
229
230  return btif_dm_cancel_discovery();
231}
232
233static int create_bond(const bt_bdaddr_t* bd_addr, int transport) {
234  /* sanity check */
235  if (interface_ready() == false) return BT_STATUS_NOT_READY;
236
237  return btif_dm_create_bond(bd_addr, transport);
238}
239
240static int create_bond_out_of_band(const bt_bdaddr_t* bd_addr, int transport,
241                                   const bt_out_of_band_data_t* oob_data) {
242  /* sanity check */
243  if (interface_ready() == false) return BT_STATUS_NOT_READY;
244
245  return btif_dm_create_bond_out_of_band(bd_addr, transport, oob_data);
246}
247
248static int cancel_bond(const bt_bdaddr_t* bd_addr) {
249  /* sanity check */
250  if (interface_ready() == false) return BT_STATUS_NOT_READY;
251
252  return btif_dm_cancel_bond(bd_addr);
253}
254
255static int remove_bond(const bt_bdaddr_t* bd_addr) {
256  if (is_restricted_mode() && !btif_storage_is_restricted_device(bd_addr))
257    return BT_STATUS_SUCCESS;
258
259  /* sanity check */
260  if (interface_ready() == false) return BT_STATUS_NOT_READY;
261
262  return btif_dm_remove_bond(bd_addr);
263}
264
265static int get_connection_state(const bt_bdaddr_t* bd_addr) {
266  /* sanity check */
267  if (interface_ready() == false) return 0;
268
269  return btif_dm_get_connection_state(bd_addr);
270}
271
272static int pin_reply(const bt_bdaddr_t* bd_addr, uint8_t accept,
273                     uint8_t pin_len, bt_pin_code_t* pin_code) {
274  /* sanity check */
275  if (interface_ready() == false) return BT_STATUS_NOT_READY;
276
277  return btif_dm_pin_reply(bd_addr, accept, pin_len, pin_code);
278}
279
280static int ssp_reply(const bt_bdaddr_t* bd_addr, bt_ssp_variant_t variant,
281                     uint8_t accept, uint32_t passkey) {
282  /* sanity check */
283  if (interface_ready() == false) return BT_STATUS_NOT_READY;
284
285  return btif_dm_ssp_reply(bd_addr, variant, accept, passkey);
286}
287
288static int read_energy_info() {
289  if (interface_ready() == false) return BT_STATUS_NOT_READY;
290  btif_dm_read_energy_info();
291  return BT_STATUS_SUCCESS;
292}
293
294static void dump(int fd, const char** arguments) {
295  if (arguments != NULL && arguments[0] != NULL) {
296    if (strncmp(arguments[0], "--proto-bin", 11) == 0) {
297      btif_update_a2dp_metrics();
298      metrics_write(fd, true);
299      return;
300    }
301  }
302  btif_debug_conn_dump(fd);
303  btif_debug_bond_event_dump(fd);
304  btif_debug_a2dp_dump(fd);
305  btif_debug_config_dump(fd);
306  wakelock_debug_dump(fd);
307  alarm_debug_dump(fd);
308#if (BTSNOOP_MEM == TRUE)
309  btif_debug_btsnoop_dump(fd);
310#endif
311
312  close(fd);
313}
314
315static const void* get_profile_interface(const char* profile_id) {
316  LOG_INFO(LOG_TAG, "get_profile_interface %s", profile_id);
317
318  /* sanity check */
319  if (interface_ready() == false) return NULL;
320
321  /* check for supported profile interfaces */
322  if (is_profile(profile_id, BT_PROFILE_HANDSFREE_ID))
323    return btif_hf_get_interface();
324
325  if (is_profile(profile_id, BT_PROFILE_HANDSFREE_CLIENT_ID))
326    return btif_hf_client_get_interface();
327
328  if (is_profile(profile_id, BT_PROFILE_SOCKETS_ID))
329    return btif_sock_get_interface();
330
331  if (is_profile(profile_id, BT_PROFILE_PAN_ID))
332    return btif_pan_get_interface();
333
334  if (is_profile(profile_id, BT_PROFILE_ADVANCED_AUDIO_ID))
335    return btif_av_get_src_interface();
336
337  if (is_profile(profile_id, BT_PROFILE_ADVANCED_AUDIO_SINK_ID))
338    return btif_av_get_sink_interface();
339
340  if (is_profile(profile_id, BT_PROFILE_HIDHOST_ID))
341    return btif_hh_get_interface();
342
343  if (is_profile(profile_id, BT_PROFILE_HEALTH_ID))
344    return btif_hl_get_interface();
345
346  if (is_profile(profile_id, BT_PROFILE_SDP_CLIENT_ID))
347    return btif_sdp_get_interface();
348
349  if (is_profile(profile_id, BT_PROFILE_GATT_ID))
350    return btif_gatt_get_interface();
351
352  if (is_profile(profile_id, BT_PROFILE_AV_RC_ID))
353    return btif_rc_get_interface();
354
355  if (is_profile(profile_id, BT_PROFILE_AV_RC_CTRL_ID))
356    return btif_rc_ctrl_get_interface();
357
358  return NULL;
359}
360
361int dut_mode_configure(uint8_t enable) {
362  LOG_INFO(LOG_TAG, "dut_mode_configure");
363
364  /* sanity check */
365  if (interface_ready() == false) return BT_STATUS_NOT_READY;
366
367  return btif_dut_mode_configure(enable);
368}
369
370int dut_mode_send(uint16_t opcode, uint8_t* buf, uint8_t len) {
371  LOG_INFO(LOG_TAG, "dut_mode_send");
372
373  /* sanity check */
374  if (interface_ready() == false) return BT_STATUS_NOT_READY;
375
376  return btif_dut_mode_send(opcode, buf, len);
377}
378
379int le_test_mode(uint16_t opcode, uint8_t* buf, uint8_t len) {
380  LOG_INFO(LOG_TAG, "le_test_mode");
381
382  /* sanity check */
383  if (interface_ready() == false) return BT_STATUS_NOT_READY;
384
385  return btif_le_test_mode(opcode, buf, len);
386}
387
388int config_hci_snoop_log(uint8_t enable) {
389  LOG_INFO(LOG_TAG, "config_hci_snoop_log");
390
391  if (!interface_ready()) return BT_STATUS_NOT_READY;
392
393  btsnoop_get_interface()->set_api_wants_to_log(enable);
394  return BT_STATUS_SUCCESS;
395}
396
397static int set_os_callouts(bt_os_callouts_t* callouts) {
398  wakelock_set_os_callouts(callouts);
399  return BT_STATUS_SUCCESS;
400}
401
402static int config_clear(void) {
403  LOG_INFO(LOG_TAG, "%s", __func__);
404  return btif_config_clear() ? BT_STATUS_SUCCESS : BT_STATUS_FAIL;
405}
406
407static const bt_interface_t bluetoothInterface = {
408    sizeof(bluetoothInterface),
409    init,
410    enable,
411    disable,
412    cleanup,
413    get_adapter_properties,
414    get_adapter_property,
415    set_adapter_property,
416    get_remote_device_properties,
417    get_remote_device_property,
418    set_remote_device_property,
419    get_remote_service_record,
420    get_remote_services,
421    start_discovery,
422    cancel_discovery,
423    create_bond,
424    create_bond_out_of_band,
425    remove_bond,
426    cancel_bond,
427    get_connection_state,
428    pin_reply,
429    ssp_reply,
430    get_profile_interface,
431    dut_mode_configure,
432    dut_mode_send,
433    le_test_mode,
434    config_hci_snoop_log,
435    set_os_callouts,
436    read_energy_info,
437    dump,
438    config_clear,
439    interop_database_clear,
440    interop_database_add,
441};
442
443const bt_interface_t* bluetooth__get_bluetooth_interface() {
444  /* fixme -- add property to disable bt interface ? */
445
446  return &bluetoothInterface;
447}
448
449static int close_bluetooth_stack(UNUSED_ATTR struct hw_device_t* device) {
450  cleanup();
451  return 0;
452}
453
454static int open_bluetooth_stack(const struct hw_module_t* module,
455                                UNUSED_ATTR char const* name,
456                                struct hw_device_t** abstraction) {
457  static bluetooth_device_t device;
458  device.common.tag = HARDWARE_DEVICE_TAG;
459  device.common.version = 0;
460  device.common.close = close_bluetooth_stack;
461  device.get_bluetooth_interface = bluetooth__get_bluetooth_interface;
462  device.common.module = (struct hw_module_t*)module;
463  *abstraction = (struct hw_device_t*)&device;
464  return 0;
465}
466
467static struct hw_module_methods_t bt_stack_module_methods = {
468    .open = open_bluetooth_stack,
469};
470
471EXPORT_SYMBOL struct hw_module_t HAL_MODULE_INFO_SYM = {
472    .tag = HARDWARE_MODULE_TAG,
473    .version_major = 1,
474    .version_minor = 0,
475    .id = BT_HARDWARE_MODULE_ID,
476    .name = "Bluetooth Stack",
477    .author = "The Android Open Source Project",
478    .methods = &bt_stack_module_methods};
479