1 // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6 
7 //     http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 
15 
16 #include "esp_bt_main.h"
17 #include "btc/btc_task.h"
18 #include "btc/btc_main.h"
19 #include "esp_bt.h"
20 #include "osi/future.h"
21 #include "osi/allocator.h"
22 
23 static bool bd_already_enable = false;
24 static bool bd_already_init = false;
25 
esp_bluedroid_get_status(void)26 esp_bluedroid_status_t esp_bluedroid_get_status(void)
27 {
28     if (bd_already_init) {
29         if (bd_already_enable) {
30             return ESP_BLUEDROID_STATUS_ENABLED;
31         } else {
32             return ESP_BLUEDROID_STATUS_INITIALIZED;
33         }
34     } else {
35         return ESP_BLUEDROID_STATUS_UNINITIALIZED;
36     }
37 }
38 
esp_bluedroid_enable(void)39 esp_err_t esp_bluedroid_enable(void)
40 {
41     btc_msg_t msg;
42     future_t **future_p;
43 
44     if (!bd_already_init) {
45         LOG_ERROR("Bludroid not initialised\n");
46         return ESP_ERR_INVALID_STATE;
47     }
48 
49     if (bd_already_enable) {
50         LOG_ERROR("Bluedroid already enabled\n");
51         return ESP_ERR_INVALID_STATE;
52     }
53 
54     future_p = btc_main_get_future_p(BTC_MAIN_ENABLE_FUTURE);
55     *future_p = future_new();
56     if (*future_p == NULL) {
57         LOG_ERROR("Bluedroid enable failed\n");
58         return ESP_ERR_NO_MEM;
59     }
60 
61     msg.sig = BTC_SIG_API_CALL;
62     msg.pid = BTC_PID_MAIN_INIT;
63     msg.act = BTC_MAIN_ACT_ENABLE;
64 
65     if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
66         LOG_ERROR("Bluedroid enable failed\n");
67         return ESP_FAIL;
68     }
69 
70     if (future_await(*future_p) == FUTURE_FAIL) {
71         LOG_ERROR("Bluedroid enable failed\n");
72         return ESP_FAIL;
73     }
74 
75     bd_already_enable = true;
76 
77     return ESP_OK;
78 }
79 
esp_bluedroid_disable(void)80 esp_err_t esp_bluedroid_disable(void)
81 {
82     btc_msg_t msg;
83     future_t **future_p;
84 
85     if (!bd_already_enable) {
86         LOG_ERROR("Bluedroid already disabled\n");
87         return ESP_ERR_INVALID_STATE;
88     }
89 
90     future_p = btc_main_get_future_p(BTC_MAIN_DISABLE_FUTURE);
91     *future_p = future_new();
92     if (*future_p == NULL) {
93         LOG_ERROR("Bluedroid disable failed\n");
94         return ESP_ERR_NO_MEM;
95     }
96 
97     msg.sig = BTC_SIG_API_CALL;
98     msg.pid = BTC_PID_MAIN_INIT;
99     msg.act = BTC_MAIN_ACT_DISABLE;
100 
101     if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
102         LOG_ERROR("Bluedroid disable failed\n");
103         return ESP_FAIL;
104     }
105 
106     if (future_await(*future_p) == FUTURE_FAIL) {
107         LOG_ERROR("Bluedroid disable failed\n");
108         return ESP_FAIL;
109     }
110 
111     bd_already_enable = false;
112 
113     return ESP_OK;
114 }
115 
esp_bluedroid_init(void)116 esp_err_t esp_bluedroid_init(void)
117 {
118     btc_msg_t msg;
119     future_t **future_p;
120     bt_status_t ret;
121 
122     if (esp_bt_controller_get_status() != ESP_BT_CONTROLLER_STATUS_ENABLED) {
123         LOG_ERROR("Controller not initialised\n");
124         return ESP_ERR_INVALID_STATE;
125     }
126 
127     if (bd_already_init) {
128         LOG_ERROR("Bluedroid already initialised\n");
129         return ESP_ERR_INVALID_STATE;
130     }
131 
132 #if HEAP_MEMORY_DEBUG
133     osi_mem_dbg_init();
134 #endif
135 
136     /*
137     * BTC Init
138     */
139     ret = btc_init();
140     if (ret != BT_STATUS_SUCCESS) {
141         LOG_ERROR("Bluedroid Initialize Fail");
142         return ESP_FAIL;
143     }
144 
145     future_p = btc_main_get_future_p(BTC_MAIN_INIT_FUTURE);
146     *future_p = future_new();
147     if (*future_p == NULL) {
148         LOG_ERROR("Bluedroid Initialize Fail!");
149         return ESP_ERR_NO_MEM;
150     }
151 
152     msg.sig = BTC_SIG_API_CALL;
153     msg.pid = BTC_PID_MAIN_INIT;
154     msg.act = BTC_MAIN_ACT_INIT;
155 
156     if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
157         LOG_ERROR("Bluedroid Initialize Fail");
158         return ESP_FAIL;
159     }
160 
161     if (future_await(*future_p) == FUTURE_FAIL) {
162         LOG_ERROR("Bluedroid Initialize Fail");
163         return ESP_FAIL;
164     }
165 
166     bd_already_init = true;
167 
168     return ESP_OK;
169 }
170 
171 
esp_bluedroid_deinit(void)172 esp_err_t esp_bluedroid_deinit(void)
173 {
174     btc_msg_t msg;
175     future_t **future_p;
176 
177     if (!bd_already_init) {
178         LOG_ERROR("Bluedroid already de-initialised\n");
179         return ESP_ERR_INVALID_STATE;
180     }
181 
182     if (bd_already_enable) {
183         LOG_ERROR("Bludroid already enabled, do disable first\n");
184         return ESP_ERR_INVALID_STATE;
185     }
186 
187     future_p = btc_main_get_future_p(BTC_MAIN_DEINIT_FUTURE);
188     *future_p = future_new();
189     if (*future_p == NULL) {
190         LOG_ERROR("Bluedroid de-initialise failed\n");
191         return ESP_ERR_NO_MEM;
192     }
193 
194     msg.sig = BTC_SIG_API_CALL;
195     msg.pid = BTC_PID_MAIN_INIT;
196     msg.act = BTC_MAIN_ACT_DEINIT;
197 
198     if (btc_transfer_context(&msg, NULL, 0, NULL) != BT_STATUS_SUCCESS) {
199         LOG_ERROR("Bluedroid de-initialise failed\n");
200         return ESP_FAIL;
201     }
202 
203     if (future_await(*future_p) == FUTURE_FAIL) {
204         LOG_ERROR("Bluedroid de-initialise failed\n");
205         return ESP_FAIL;
206     }
207 
208     btc_deinit();
209 
210     bd_already_init = false;
211 
212     return ESP_OK;
213 }
214