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/counter.h"
42 #include "btcore/include/module.h"
44 #include "btif_common.h"
47 #include "bt_common.h"
48 #include "device/include/interop.h"
49 #include "hci_layer.h"
50 #include "osi/include/alarm.h"
51 #include "osi/include/fixed_queue.h"
52 #include "osi/include/future.h"
53 #include "osi/include/hash_functions.h"
54 #include "osi/include/hash_map.h"
55 #include "osi/include/log.h"
56 #include "osi/include/osi.h"
57 #include "osi/include/thread.h"
58 #include "stack_config.h"
60 /*******************************************************************************
62 *******************************************************************************/
64 /* Run-time configuration file for BLE*/
65 #ifndef BTE_BLE_STACK_CONF_FILE
66 // TODO(armansito): Find a better way than searching by a hardcoded path.
67 #if defined(OS_GENERIC)
68 #define BTE_BLE_STACK_CONF_FILE "ble_stack.conf"
69 #else // !defined(OS_GENERIC)
70 #define BTE_BLE_STACK_CONF_FILE "/etc/bluetooth/ble_stack.conf"
71 #endif // defined(OS_GENERIC)
72 #endif // BT_BLE_STACK_CONF_FILE
74 /******************************************************************************
76 ******************************************************************************/
78 /*******************************************************************************
80 *******************************************************************************/
81 static const hci_t *hci;
83 /*******************************************************************************
85 *******************************************************************************/
87 /*******************************************************************************
89 *******************************************************************************/
90 fixed_queue_t *btu_hci_msg_queue;
92 /******************************************************************************
94 ** Function bte_main_boot_entry
96 ** Description BTE MAIN API - Entry point for BTE chip/stack initialization
100 ******************************************************************************/
101 void bte_main_boot_entry(void)
103 module_init(get_module(COUNTER_MODULE));
104 module_init(get_module(INTEROP_MODULE));
106 hci = hci_layer_get_interface();
108 LOG_ERROR(LOG_TAG, "%s could not get hci layer interface.", __func__);
110 btu_hci_msg_queue = fixed_queue_new(SIZE_MAX);
111 if (btu_hci_msg_queue == NULL) {
112 LOG_ERROR(LOG_TAG, "%s unable to allocate hci message queue.", __func__);
116 data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue);
117 hci->set_data_queue(btu_hci_msg_queue);
119 module_init(get_module(STACK_CONFIG_MODULE));
122 /******************************************************************************
124 ** Function bte_main_shutdown
126 ** Description BTE MAIN API - Shutdown code for BTE chip/stack
130 ******************************************************************************/
131 void bte_main_shutdown()
133 data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL);
134 hci->set_data_queue(NULL);
135 fixed_queue_free(btu_hci_msg_queue, NULL);
137 btu_hci_msg_queue = NULL;
139 module_clean_up(get_module(STACK_CONFIG_MODULE));
141 module_clean_up(get_module(INTEROP_MODULE));
142 module_clean_up(get_module(COUNTER_MODULE));
145 /******************************************************************************
147 ** Function bte_main_enable
149 ** Description BTE MAIN API - Creates all the BTE tasks. Should be called
150 ** part of the Bluetooth stack enable sequence
154 ******************************************************************************/
155 void bte_main_enable()
157 APPL_TRACE_DEBUG("%s", __FUNCTION__);
159 module_start_up(get_module(BTSNOOP_MODULE));
160 module_start_up(get_module(HCI_MODULE));
165 /******************************************************************************
167 ** Function bte_main_disable
169 ** Description BTE MAIN API - Destroys all the BTE tasks. Should be called
170 ** part of the Bluetooth stack disable sequence
174 ******************************************************************************/
175 void bte_main_disable(void)
177 APPL_TRACE_DEBUG("%s", __FUNCTION__);
179 module_shut_down(get_module(HCI_MODULE));
180 module_shut_down(get_module(BTSNOOP_MODULE));
185 /******************************************************************************
187 ** Function bte_main_postload_cfg
189 ** Description BTE MAIN API - Stack postload configuration
193 ******************************************************************************/
194 void bte_main_postload_cfg(void)
199 #if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
200 /******************************************************************************
202 ** Function bte_main_enable_lpm
204 ** Description BTE MAIN API - Enable/Disable low power mode operation
208 ******************************************************************************/
209 void bte_main_enable_lpm(BOOLEAN enable)
211 hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE);
214 /******************************************************************************
216 ** Function bte_main_lpm_allow_bt_device_sleep
218 ** Description BTE MAIN API - Allow the BT controller to go to sleep
222 ******************************************************************************/
223 void bte_main_lpm_allow_bt_device_sleep()
225 hci->send_low_power_command(LPM_WAKE_DEASSERT);
228 /******************************************************************************
230 ** Function bte_main_lpm_wake_bt_device
232 ** Description BTE MAIN API - Wake BT controller up if it is in sleep mode
236 ******************************************************************************/
237 void bte_main_lpm_wake_bt_device()
239 hci->send_low_power_command(LPM_WAKE_ASSERT);
241 #endif // HCILP_INCLUDED
243 /******************************************************************************
245 ** Function bte_main_hci_send
247 ** Description BTE MAIN API - This function is called by the upper stack to
248 ** send an HCI message. The function displays a protocol trace
249 ** message (if enabled), and then calls the 'transmit' function
250 ** associated with the currently selected HCI transport
254 ******************************************************************************/
255 void bte_main_hci_send (BT_HDR *p_msg, UINT16 event)
257 UINT16 sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */
259 p_msg->event = event;
261 counter_add("main.tx.packets", 1);
262 counter_add("main.tx.bytes", p_msg->len);
264 if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \
265 (sub_event == LOCAL_BLE_CONTROLLER_ID))
267 hci->transmit_downward(event, p_msg);
271 APPL_TRACE_ERROR("Invalid Controller ID. Discarding message.");