1 // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
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
7 // http://www.apache.org/licenses/LICENSE-2.0
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.
20 #include "esp_heap_caps_init.h"
21 #include "freertos/FreeRTOS.h"
22 #include "freertos/task.h"
23 #include "freertos/queue.h"
24 #include "freertos/semphr.h"
25 #include "freertos/xtensa_api.h"
26 #include "freertos/portmacro.h"
27 #include "esp_types.h"
28 #include "esp_system.h"
32 #include "esp_phy_init.h"
39 #define BTDM_LOG_TAG "BTDM_INIT"
41 #define BTDM_INIT_PERIOD (5000) /* ms */
43 /* Bluetooth system and controller config */
44 #define BTDM_CFG_BT_EM_RELEASE (1<<0)
45 #define BTDM_CFG_BT_DATA_RELEASE (1<<1)
46 #define BTDM_CFG_HCI_UART (1<<2)
47 #define BTDM_CFG_CONTROLLER_RUN_APP_CPU (1<<3)
48 /* Other reserved for future */
50 /* not for user call, so don't put to include file */
51 extern void btdm_osi_funcs_register(void *osi_funcs);
52 extern int btdm_controller_init(uint32_t config_mask, esp_bt_controller_config_t *config_opts);
53 extern int btdm_controller_deinit(void);
54 extern int btdm_controller_enable(esp_bt_mode_t mode);
55 extern int btdm_controller_disable(esp_bt_mode_t mode);
56 extern uint8_t btdm_controller_get_mode(void);
57 extern void btdm_rf_bb_init(void);
59 /* VHCI function interface */
60 typedef struct vhci_host_callback {
61 void (*notify_host_send_available)(void); /*!< callback used to notify that the host can send packet to controller */
62 int (*notify_host_recv)(uint8_t *data, uint16_t len); /*!< callback used to notify that the controller has a packet to send to the host*/
63 } vhci_host_callback_t;
65 extern bool API_vhci_host_check_send_available(void);
66 extern void API_vhci_host_send_packet(uint8_t *data, uint16_t len);
67 extern void API_vhci_host_register_callback(const vhci_host_callback_t *callback);
69 extern int ble_txpwr_set(int power_type, int power_level);
70 extern int ble_txpwr_get(int power_type);
73 #define BT_API_CALL_CHECK(info, api_call, ret) \
75 esp_err_t __err = (api_call);\
76 if ((ret) != __err) {\
77 BT_DEBUG("%s %d %s ret=%d\n", __FUNCTION__, __LINE__, (info), __err);\
82 #define OSI_FUNCS_TIME_BLOCKING 0xffffffff
85 xt_handler (*_set_isr)(int n, xt_handler f, void *arg);
86 void (*_ints_on)(unsigned int mask);
87 void (*_interrupt_disable)(void);
88 void (*_interrupt_restore)(void);
89 void (*_task_yield)(void);
90 void (*_task_yield_from_isr)(void);
91 void *(*_semphr_create)(uint32_t max, uint32_t init);
92 void (*_semphr_delete)(void *semphr);
93 int32_t (*_semphr_take_from_isr)(void *semphr, void *hptw);
94 int32_t (*_semphr_give_from_isr)(void *semphr, void *hptw);
95 int32_t (*_semphr_take)(void *semphr, uint32_t block_time_ms);
96 int32_t (*_semphr_give)(void *semphr);
97 void *(*_mutex_create)(void);
98 void (*_mutex_delete)(void *mutex);
99 int32_t (*_mutex_lock)(void *mutex);
100 int32_t (*_mutex_unlock)(void *mutex);
101 void *(* _queue_create)(uint32_t queue_len, uint32_t item_size);
102 void (* _queue_delete)(void *queue);
103 int32_t (* _queue_send)(void *queue, void *item, uint32_t block_time_ms);
104 int32_t (* _queue_send_from_isr)(void *queue, void *item, void *hptw);
105 int32_t (* _queue_recv)(void *queue, void *item, uint32_t block_time_ms);
106 int32_t (* _queue_recv_from_isr)(void *queue, void *item, void *hptw);
107 int32_t (* _task_create)(void *task_func, const char *name, uint32_t stack_depth, void *param, uint32_t prio, void *task_handle, uint32_t core_id);
108 void (* _task_delete)(void *task_handle);
109 bool (* _is_in_isr)(void);
110 void *(* _malloc)(uint32_t size);
111 void (* _free)(void *p);
112 int32_t (* _read_efuse_mac)(uint8_t mac[6]);
113 void (* _srand)(unsigned int seed);
117 /* Static variable declare */
118 static bool btdm_bb_init_flag = false;
119 static esp_bt_controller_status_t btdm_controller_status = ESP_BT_CONTROLLER_STATUS_IDLE;
121 static portMUX_TYPE global_int_mux = portMUX_INITIALIZER_UNLOCKED;
123 static void IRAM_ATTR interrupt_disable(void)
125 portENTER_CRITICAL(&global_int_mux);
128 static void IRAM_ATTR interrupt_restore(void)
130 portEXIT_CRITICAL(&global_int_mux);
133 static void IRAM_ATTR task_yield_from_isr(void)
135 portYIELD_FROM_ISR();
138 static void *IRAM_ATTR semphr_create_wrapper(uint32_t max, uint32_t init)
140 return (void *)xSemaphoreCreateCounting(max, init);
143 static void IRAM_ATTR semphr_delete_wrapper(void *semphr)
145 vSemaphoreDelete(semphr);
148 static int32_t IRAM_ATTR semphr_take_from_isr_wrapper(void *semphr, void *hptw)
150 return (int32_t)xSemaphoreTakeFromISR(semphr, hptw);
153 static int32_t IRAM_ATTR semphr_give_from_isr_wrapper(void *semphr, void *hptw)
155 return (int32_t)xSemaphoreGiveFromISR(semphr, hptw);
158 static int32_t IRAM_ATTR semphr_take_wrapper(void *semphr, uint32_t block_time_ms)
160 if (block_time_ms == OSI_FUNCS_TIME_BLOCKING) {
161 return (int32_t)xSemaphoreTake(semphr, portMAX_DELAY);
163 return (int32_t)xSemaphoreTake(semphr, block_time_ms / portTICK_PERIOD_MS);
167 static int32_t IRAM_ATTR semphr_give_wrapper(void *semphr)
169 return (int32_t)xSemaphoreGive(semphr);
172 static void *IRAM_ATTR mutex_create_wrapper(void)
174 return (void *)xSemaphoreCreateMutex();
177 static void IRAM_ATTR mutex_delete_wrapper(void *mutex)
179 vSemaphoreDelete(mutex);
182 static int32_t IRAM_ATTR mutex_lock_wrapper(void *mutex)
184 return (int32_t)xSemaphoreTake(mutex, portMAX_DELAY);
187 static int32_t IRAM_ATTR mutex_unlock_wrapper(void *mutex)
189 return (int32_t)xSemaphoreGive(mutex);
192 static void *IRAM_ATTR queue_create_wrapper(uint32_t queue_len, uint32_t item_size)
194 return (void *)xQueueCreate(queue_len, item_size);
197 static void IRAM_ATTR queue_delete_wrapper(void *queue)
202 static int32_t IRAM_ATTR queue_send_wrapper(void *queue, void *item, uint32_t block_time_ms)
204 if (block_time_ms == OSI_FUNCS_TIME_BLOCKING) {
205 return (int32_t)xQueueSend(queue, item, portMAX_DELAY);
207 return (int32_t)xQueueSend(queue, item, block_time_ms / portTICK_PERIOD_MS);
211 static int32_t IRAM_ATTR queue_send_from_isr_wrapper(void *queue, void *item, void *hptw)
213 return (int32_t)xQueueSendFromISR(queue, item, hptw);
216 static int32_t IRAM_ATTR queue_recv_wrapper(void *queue, void *item, uint32_t block_time_ms)
218 if (block_time_ms == OSI_FUNCS_TIME_BLOCKING) {
219 return (int32_t)xQueueReceive(queue, item, portMAX_DELAY);
221 return (int32_t)xQueueReceive(queue, item, block_time_ms / portTICK_PERIOD_MS);
225 static int32_t IRAM_ATTR queue_recv_from_isr_wrapper(void *queue, void *item, void *hptw)
227 return (int32_t)xQueueReceiveFromISR(queue, item, hptw);
230 static int32_t IRAM_ATTR task_create_wrapper(void *task_func, const char *name, uint32_t stack_depth, void *param, uint32_t prio, void *task_handle, uint32_t core_id)
232 return (uint32_t)xTaskCreatePinnedToCore(task_func, name, stack_depth, param, prio, task_handle, (core_id < portNUM_PROCESSORS ? core_id : tskNO_AFFINITY));
235 static void IRAM_ATTR task_delete_wrapper(void *task_handle)
237 vTaskDelete(task_handle);
240 static bool IRAM_ATTR is_in_isr_wrapper(void)
242 return (bool)xPortInIsrContext();
245 static int32_t IRAM_ATTR read_mac_wrapper(uint8_t mac[6])
247 return esp_read_mac(mac, ESP_MAC_BT);
250 static void IRAM_ATTR srand_wrapper(unsigned int seed)
255 static int IRAM_ATTR rand_wrapper(void)
257 return (int)esp_random();
260 static struct osi_funcs_t osi_funcs = {
261 ._set_isr = xt_set_interrupt_handler,
262 ._ints_on = xt_ints_on,
263 ._interrupt_disable = interrupt_disable,
264 ._interrupt_restore = interrupt_restore,
265 ._task_yield = vPortYield,
266 ._task_yield_from_isr = task_yield_from_isr,
267 ._semphr_create = semphr_create_wrapper,
268 ._semphr_delete = semphr_delete_wrapper,
269 ._semphr_take_from_isr = semphr_take_from_isr_wrapper,
270 ._semphr_give_from_isr = semphr_give_from_isr_wrapper,
271 ._semphr_take = semphr_take_wrapper,
272 ._semphr_give = semphr_give_wrapper,
273 ._mutex_create = mutex_create_wrapper,
274 ._mutex_delete = mutex_delete_wrapper,
275 ._mutex_lock = mutex_lock_wrapper,
276 ._mutex_unlock = mutex_unlock_wrapper,
277 ._queue_create = queue_create_wrapper,
278 ._queue_delete = queue_delete_wrapper,
279 ._queue_send = queue_send_wrapper,
280 ._queue_send_from_isr = queue_send_from_isr_wrapper,
281 ._queue_recv = queue_recv_wrapper,
282 ._queue_recv_from_isr = queue_recv_from_isr_wrapper,
283 ._task_create = task_create_wrapper,
284 ._task_delete = task_delete_wrapper,
285 ._is_in_isr = is_in_isr_wrapper,
288 ._read_efuse_mac = read_mac_wrapper,
289 ._srand = srand_wrapper,
290 ._rand = rand_wrapper,
293 bool esp_vhci_host_check_send_available(void)
295 return API_vhci_host_check_send_available();
298 void esp_vhci_host_send_packet(uint8_t *data, uint16_t len)
300 API_vhci_host_send_packet(data, len);
303 void esp_vhci_host_register_callback(const esp_vhci_host_callback_t *callback)
305 API_vhci_host_register_callback((const vhci_host_callback_t *)callback);
308 static uint32_t btdm_config_mask_load(void)
312 #ifdef CONFIG_BT_DRAM_RELEASE
313 mask |= (BTDM_CFG_BT_EM_RELEASE | BTDM_CFG_BT_DATA_RELEASE);
315 #ifdef CONFIG_BT_HCI_UART
316 mask |= BTDM_CFG_HCI_UART;
318 #ifdef CONFIG_BTDM_CONTROLLER_RUN_APP_CPU
319 mask |= BTDM_CFG_CONTROLLER_RUN_APP_CPU;
324 static void btdm_controller_release_mem(void)
326 uint32_t bt_mem_start, bt_mem_end;
327 #if CONFIG_BT_DRAM_RELEASE
328 bt_mem_start = 0x3ffb0000; bt_mem_end = 0x3ffb3000; //Reserve BT data region
329 ESP_ERROR_CHECK( heap_caps_add_region((intptr_t)bt_mem_start, (intptr_t)bt_mem_end));
330 bt_mem_start = 0x3ffb8000; bt_mem_end = 0x3ffbbb28; //Reserve BT data region
331 ESP_ERROR_CHECK( heap_caps_add_region((intptr_t)bt_mem_start, (intptr_t)bt_mem_end));
332 bt_mem_start = 0x3ffbdb28; bt_mem_end = 0x3ffc0000; //Reserve BT data region
333 ESP_ERROR_CHECK( heap_caps_add_region((intptr_t)bt_mem_start, (intptr_t)bt_mem_end));
335 bt_mem_start = 0x3ffb0000; bt_mem_end = 0x3ffc0000; //Reserve BT hardware shared memory & BT data region
336 ESP_ERROR_CHECK( heap_caps_add_region((intptr_t)bt_mem_start, (intptr_t)bt_mem_end));
338 bt_mem_start = 0x3ffae2a0; bt_mem_end = 0x3ffaff10; //Reserve ROM data region
339 ESP_ERROR_CHECK( heap_caps_add_region((intptr_t)bt_mem_start, (intptr_t)bt_mem_end));
342 esp_err_t esp_bt_controller_init(esp_bt_controller_config_t *cfg)
345 uint32_t btdm_cfg_mask = 0;
347 if (btdm_controller_status != ESP_BT_CONTROLLER_STATUS_IDLE) {
348 return ESP_ERR_INVALID_STATE;
352 return ESP_ERR_INVALID_ARG;
355 if (cfg->controller_task_prio != ESP_TASK_BT_CONTROLLER_PRIO
356 || cfg->controller_task_stack_size < ESP_TASK_BT_CONTROLLER_STACK) {
357 return ESP_ERR_INVALID_ARG;
360 btdm_osi_funcs_register(&osi_funcs);
362 btdm_cfg_mask = btdm_config_mask_load();
364 ret = btdm_controller_init(btdm_cfg_mask, cfg);
366 return ESP_ERR_NO_MEM;
369 btdm_controller_status = ESP_BT_CONTROLLER_STATUS_INITED;
373 esp_err_t esp_bt_controller_deinit(void)
375 if (btdm_controller_status != ESP_BT_CONTROLLER_STATUS_INITED) {
376 return ESP_ERR_INVALID_STATE;
379 if (btdm_controller_deinit() != 0) {
380 return ESP_ERR_NO_MEM;
383 btdm_controller_release_mem();
385 btdm_controller_status = ESP_BT_CONTROLLER_STATUS_SHUTDOWN;
389 esp_err_t esp_bt_controller_enable(esp_bt_mode_t mode)
393 if (btdm_controller_status != ESP_BT_CONTROLLER_STATUS_INITED) {
394 return ESP_ERR_INVALID_STATE;
396 #if CONFIG_BT_DRAM_RELEASE
397 if (mode != ESP_BT_MODE_BLE) {
399 if (mode != ESP_BT_MODE_BLE
400 && mode != ESP_BT_MODE_CLASSIC_BT
401 && mode != ESP_BT_MODE_BTDM) {
403 return ESP_ERR_INVALID_ARG;
406 esp_phy_load_cal_and_init();
408 if (btdm_bb_init_flag == false) {
409 btdm_bb_init_flag = true;
410 btdm_rf_bb_init(); /* only initialise once */
413 ret = btdm_controller_enable(mode);
415 return ESP_ERR_INVALID_STATE;
418 btdm_controller_status = ESP_BT_CONTROLLER_STATUS_ENABLED;
423 esp_err_t esp_bt_controller_disable(esp_bt_mode_t mode)
427 if (btdm_controller_status != ESP_BT_CONTROLLER_STATUS_ENABLED) {
428 return ESP_ERR_INVALID_STATE;
431 if (mode != btdm_controller_get_mode()) {
432 ESP_LOGW(BTDM_LOG_TAG, "The input mode should be equal %d, but ignore error, use %d instead of %d\n",
433 btdm_controller_get_mode(), btdm_controller_get_mode(), mode);
434 mode = btdm_controller_get_mode();
437 ret = btdm_controller_disable(mode);
439 return ESP_ERR_INVALID_STATE;
442 if (ret == ESP_BT_MODE_IDLE) {
444 btdm_controller_status = ESP_BT_CONTROLLER_STATUS_INITED;
450 esp_bt_controller_status_t esp_bt_controller_get_status(void)
452 return btdm_controller_status;
456 /* extra functions */
457 esp_err_t esp_ble_tx_power_set(esp_ble_power_type_t power_type, esp_power_level_t power_level)
459 if (ble_txpwr_set(power_type, power_level) != 0) {
460 return ESP_ERR_INVALID_ARG;
466 esp_power_level_t esp_ble_tx_power_get(esp_ble_power_type_t power_type)
468 return (esp_power_level_t)ble_txpwr_get(power_type);
471 #endif /* CONFIG_BT_ENABLED */