1 /******************************************************************************
3 * Copyright (C) 2009-2012 Broadcom Corporation
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:
9 * http://www.apache.org/licenses/LICENSE-2.0
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.
17 ******************************************************************************/
19 /******************************************************************************
21 * Filename: bte_main.c
23 * Description: Contains BTE core stack initialization and shutdown code
25 ******************************************************************************/
27 #define LOG_TAG "bt_main"
36 #include <hardware/bluetooth.h>
38 #include "bt_hci_bdroid.h"
41 #include "btcore/include/module.h"
43 #include "btif_common.h"
46 #include "bt_common.h"
47 #include "device/include/interop.h"
48 #include "hci_layer.h"
49 #include "osi/include/alarm.h"
50 #include "osi/include/fixed_queue.h"
51 #include "osi/include/future.h"
52 #include "osi/include/hash_functions.h"
53 #include "osi/include/hash_map.h"
54 #include "osi/include/log.h"
55 #include "osi/include/osi.h"
56 #include "osi/include/thread.h"
57 #include "stack_config.h"
59 /*******************************************************************************
61 *******************************************************************************/
63 /* Run-time configuration file for BLE*/
64 #ifndef BTE_BLE_STACK_CONF_FILE
65 // TODO(armansito): Find a better way than searching by a hardcoded path.
66 #if defined(OS_GENERIC)
67 #define BTE_BLE_STACK_CONF_FILE "ble_stack.conf"
68 #else // !defined(OS_GENERIC)
69 #define BTE_BLE_STACK_CONF_FILE "/etc/bluetooth/ble_stack.conf"
70 #endif // defined(OS_GENERIC)
71 #endif // BT_BLE_STACK_CONF_FILE
73 /******************************************************************************
75 ******************************************************************************/
77 /*******************************************************************************
79 *******************************************************************************/
80 static const hci_t *hci;
82 /*******************************************************************************
84 *******************************************************************************/
86 /*******************************************************************************
88 *******************************************************************************/
89 fixed_queue_t *btu_hci_msg_queue;
91 /******************************************************************************
93 ** Function bte_main_boot_entry
95 ** Description BTE MAIN API - Entry point for BTE chip/stack initialization
99 ******************************************************************************/
100 void bte_main_boot_entry(void)
102 module_init(get_module(INTEROP_MODULE));
104 hci = hci_layer_get_interface();
106 LOG_ERROR(LOG_TAG, "%s could not get hci layer interface.", __func__);
108 btu_hci_msg_queue = fixed_queue_new(SIZE_MAX);
109 if (btu_hci_msg_queue == NULL) {
110 LOG_ERROR(LOG_TAG, "%s unable to allocate hci message queue.", __func__);
114 data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue);
115 hci->set_data_queue(btu_hci_msg_queue);
117 module_init(get_module(STACK_CONFIG_MODULE));
120 /******************************************************************************
122 ** Function bte_main_cleanup
124 ** Description BTE MAIN API - Cleanup code for BTE chip/stack
128 ******************************************************************************/
129 void bte_main_cleanup()
131 data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL);
132 hci->set_data_queue(NULL);
133 fixed_queue_free(btu_hci_msg_queue, NULL);
135 btu_hci_msg_queue = NULL;
137 module_clean_up(get_module(STACK_CONFIG_MODULE));
139 module_clean_up(get_module(INTEROP_MODULE));
142 /******************************************************************************
144 ** Function bte_main_enable
146 ** Description BTE MAIN API - Creates all the BTE tasks. Should be called
147 ** part of the Bluetooth stack enable sequence
151 ******************************************************************************/
152 void bte_main_enable()
154 APPL_TRACE_DEBUG("%s", __FUNCTION__);
156 module_start_up(get_module(BTSNOOP_MODULE));
157 module_start_up(get_module(HCI_MODULE));
162 /******************************************************************************
164 ** Function bte_main_disable
166 ** Description BTE MAIN API - Destroys all the BTE tasks. Should be called
167 ** part of the Bluetooth stack disable sequence
171 ******************************************************************************/
172 void bte_main_disable(void)
174 APPL_TRACE_DEBUG("%s", __FUNCTION__);
176 module_shut_down(get_module(HCI_MODULE));
177 module_shut_down(get_module(BTSNOOP_MODULE));
182 /******************************************************************************
184 ** Function bte_main_postload_cfg
186 ** Description BTE MAIN API - Stack postload configuration
190 ******************************************************************************/
191 void bte_main_postload_cfg(void)
196 #if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
197 /******************************************************************************
199 ** Function bte_main_enable_lpm
201 ** Description BTE MAIN API - Enable/Disable low power mode operation
205 ******************************************************************************/
206 void bte_main_enable_lpm(BOOLEAN enable)
208 hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE);
211 /******************************************************************************
213 ** Function bte_main_lpm_allow_bt_device_sleep
215 ** Description BTE MAIN API - Allow the BT controller to go to sleep
219 ******************************************************************************/
220 void bte_main_lpm_allow_bt_device_sleep()
222 hci->send_low_power_command(LPM_WAKE_DEASSERT);
225 /******************************************************************************
227 ** Function bte_main_lpm_wake_bt_device
229 ** Description BTE MAIN API - Wake BT controller up if it is in sleep mode
233 ******************************************************************************/
234 void bte_main_lpm_wake_bt_device()
236 hci->send_low_power_command(LPM_WAKE_ASSERT);
238 #endif // HCILP_INCLUDED
240 /******************************************************************************
242 ** Function bte_main_hci_send
244 ** Description BTE MAIN API - This function is called by the upper stack to
245 ** send an HCI message. The function displays a protocol trace
246 ** message (if enabled), and then calls the 'transmit' function
247 ** associated with the currently selected HCI transport
251 ******************************************************************************/
252 void bte_main_hci_send (BT_HDR *p_msg, UINT16 event)
254 UINT16 sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */
256 p_msg->event = event;
259 if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \
260 (sub_event == LOCAL_BLE_CONTROLLER_ID))
262 hci->transmit_downward(event, p_msg);
266 APPL_TRACE_ERROR("Invalid Controller ID. Discarding message.");