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 "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 extern void bte_load_ble_conf(const char *p_path);
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));
105 hci = hci_layer_get_interface();
107 LOG_ERROR(LOG_TAG, "%s could not get hci layer interface.", __func__);
109 btu_hci_msg_queue = fixed_queue_new(SIZE_MAX);
110 if (btu_hci_msg_queue == NULL) {
111 LOG_ERROR(LOG_TAG, "%s unable to allocate hci message queue.", __func__);
115 data_dispatcher_register_default(hci->event_dispatcher, btu_hci_msg_queue);
116 hci->set_data_queue(btu_hci_msg_queue);
118 #if (defined(BLE_INCLUDED) && (BLE_INCLUDED == TRUE))
119 bte_load_ble_conf(BTE_BLE_STACK_CONF_FILE);
121 module_init(get_module(STACK_CONFIG_MODULE));
124 /******************************************************************************
126 ** Function bte_main_shutdown
128 ** Description BTE MAIN API - Shutdown code for BTE chip/stack
132 ******************************************************************************/
133 void bte_main_shutdown()
135 data_dispatcher_register_default(hci_layer_get_interface()->event_dispatcher, NULL);
136 hci->set_data_queue(NULL);
137 fixed_queue_free(btu_hci_msg_queue, NULL);
139 btu_hci_msg_queue = NULL;
141 module_clean_up(get_module(STACK_CONFIG_MODULE));
143 module_clean_up(get_module(COUNTER_MODULE));
146 /******************************************************************************
148 ** Function bte_main_enable
150 ** Description BTE MAIN API - Creates all the BTE tasks. Should be called
151 ** part of the Bluetooth stack enable sequence
155 ******************************************************************************/
156 void bte_main_enable()
158 APPL_TRACE_DEBUG("%s", __FUNCTION__);
160 module_start_up(get_module(BTSNOOP_MODULE));
161 module_start_up(get_module(HCI_MODULE));
166 /******************************************************************************
168 ** Function bte_main_disable
170 ** Description BTE MAIN API - Destroys all the BTE tasks. Should be called
171 ** part of the Bluetooth stack disable sequence
175 ******************************************************************************/
176 void bte_main_disable(void)
178 APPL_TRACE_DEBUG("%s", __FUNCTION__);
180 module_shut_down(get_module(HCI_MODULE));
181 module_shut_down(get_module(BTSNOOP_MODULE));
186 /******************************************************************************
188 ** Function bte_main_postload_cfg
190 ** Description BTE MAIN API - Stack postload configuration
194 ******************************************************************************/
195 void bte_main_postload_cfg(void)
200 #if (defined(HCILP_INCLUDED) && HCILP_INCLUDED == TRUE)
201 /******************************************************************************
203 ** Function bte_main_enable_lpm
205 ** Description BTE MAIN API - Enable/Disable low power mode operation
209 ******************************************************************************/
210 void bte_main_enable_lpm(BOOLEAN enable)
212 hci->send_low_power_command(enable ? LPM_ENABLE : LPM_DISABLE);
215 /******************************************************************************
217 ** Function bte_main_lpm_allow_bt_device_sleep
219 ** Description BTE MAIN API - Allow the BT controller to go to sleep
223 ******************************************************************************/
224 void bte_main_lpm_allow_bt_device_sleep()
226 hci->send_low_power_command(LPM_WAKE_DEASSERT);
229 /******************************************************************************
231 ** Function bte_main_lpm_wake_bt_device
233 ** Description BTE MAIN API - Wake BT controller up if it is in sleep mode
237 ******************************************************************************/
238 void bte_main_lpm_wake_bt_device()
240 hci->send_low_power_command(LPM_WAKE_ASSERT);
242 #endif // HCILP_INCLUDED
244 /******************************************************************************
246 ** Function bte_main_hci_send
248 ** Description BTE MAIN API - This function is called by the upper stack to
249 ** send an HCI message. The function displays a protocol trace
250 ** message (if enabled), and then calls the 'transmit' function
251 ** associated with the currently selected HCI transport
255 ******************************************************************************/
256 void bte_main_hci_send (BT_HDR *p_msg, UINT16 event)
258 UINT16 sub_event = event & BT_SUB_EVT_MASK; /* local controller ID */
260 p_msg->event = event;
262 counter_add("main.tx.packets", 1);
263 counter_add("main.tx.bytes", p_msg->len);
265 if((sub_event == LOCAL_BR_EDR_CONTROLLER_ID) || \
266 (sub_event == LOCAL_BLE_CONTROLLER_ID))
268 hci->transmit_downward(event, p_msg);
272 APPL_TRACE_ERROR("Invalid Controller ID. Discarding message.");