342 lines
12 KiB
C
342 lines
12 KiB
C
/* This example code is in the Public Domain (or CC0 licensed, at your option.)
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Unless required by applicable law or agreed to in writing, this software is
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distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
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CONDITIONS OF ANY KIND, either express or implied.
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include "freertos/FreeRTOS.h"
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#include "freertos/task.h"
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#include "freertos/event_groups.h"
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#include "esp_system.h"
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#include "esp_wifi.h"
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#include "esp_event_loop.h"
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#include "esp_log.h"
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#include "nvs_flash.h"
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#include "esp_bt.h"
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#include "esp_hidd_prf_api.h"
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#include "esp_bt_defs.h"
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#include "esp_gap_ble_api.h"
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#include "esp_gatts_api.h"
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#include "esp_gatt_defs.h"
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#include "esp_bt_main.h"
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#include "esp_bt_device.h"
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#include "driver/gpio.h"
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#include "hid_dev.h"
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/**
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* Brief:
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* This test code shows how to configure gpio and how to use gpio interrupt.
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*
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* GPIO status:
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* GPIO18: output
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* GPIO19: output
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* GPIO4: input, pulled up, interrupt from rising edge and falling edge
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* GPIO5: input, pulled up, interrupt from rising edge.
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*
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* Test:
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* Connect GPIO18 with GPIO4
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* Connect GPIO19 with GPIO5
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* Generate pulses on GPIO18/19, that triggers interrupt on GPIO4/5
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*
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*/
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/**
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* Note:
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* 1. Win10 does not support vendor report , So SUPPORT_REPORT_VENDOR is always set to FALSE, it defines in hidd_le_prf_int.h
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* 2. Update connection parameters are not allowed during iPhone HID encryption, slave turns
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* off the ability to automatically update connection parameters during encryption.
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* 3. After our HID device is connected, the iPhones write 1 to the Report Characteristic Configuration Descriptor,
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* even if the HID encryption is not completed. This should actually be written 1 after the HID encryption is completed.
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* we modify the permissions of the Report Characteristic Configuration Descriptor to `ESP_GATT_PERM_READ | ESP_GATT_PERM_WRITE_ENCRYPTED`.
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* if you got `GATT_INSUF_ENCRYPTION` error, please ignore.
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*/
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#define HID_DEMO_TAG "HID_DEMO"
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#define GPIO_OUTPUT_IO_0 18
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#define GPIO_OUTPUT_IO_1 19
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#define GPIO_OUTPUT_PIN_SEL ((1<<GPIO_OUTPUT_IO_0) | (1<<GPIO_OUTPUT_IO_1))
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#define GPIO_INPUT_IO_0 21
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#define GPIO_INPUT_IO_1 27
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#define GPIO_INPUT_PIN_SEL ((1<<GPIO_INPUT_IO_0) | (1<<GPIO_INPUT_IO_1))
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#define ESP_INTR_FLAG_DEFAULT 0
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static xQueueHandle gpio_evt_queue = NULL;
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static uint16_t hid_conn_id = 0;
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static bool sec_conn = false;
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static bool send_volum_up = false;
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#define CHAR_DECLARATION_SIZE (sizeof(uint8_t))
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static void hidd_event_callback(esp_hidd_cb_event_t event, esp_hidd_cb_param_t *param);
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#define HIDD_DEVICE_NAME "HID"
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static uint8_t hidd_service_uuid128[] = {
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/* LSB <--------------------------------------------------------------------------------> MSB */
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//first uuid, 16bit, [12],[13] is the value
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0xfb, 0x34, 0x9b, 0x5f, 0x80, 0x00, 0x00, 0x80, 0x00, 0x10, 0x00, 0x00, 0x12, 0x18, 0x00, 0x00,
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};
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static esp_ble_adv_data_t hidd_adv_data = {
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.set_scan_rsp = false,
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.include_name = true,
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.include_txpower = true,
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.min_interval = 0x0006, //slave connection min interval, Time = min_interval * 1.25 msec
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.max_interval = 0x0010, //slave connection max interval, Time = max_interval * 1.25 msec
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.appearance = 0x03c0, //HID Generic,
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.manufacturer_len = 0,
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.p_manufacturer_data = NULL,
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.service_data_len = 0,
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.p_service_data = NULL,
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.service_uuid_len = sizeof(hidd_service_uuid128),
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.p_service_uuid = hidd_service_uuid128,
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.flag = 0x6,
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};
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static esp_ble_adv_params_t hidd_adv_params = {
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.adv_int_min = 0x20,
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.adv_int_max = 0x30,
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.adv_type = ADV_TYPE_IND,
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.own_addr_type = BLE_ADDR_TYPE_PUBLIC,
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//.peer_addr =
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//.peer_addr_type =
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.channel_map = ADV_CHNL_ALL,
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.adv_filter_policy = ADV_FILTER_ALLOW_SCAN_ANY_CON_ANY,
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};
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void IRAM_ATTR gpio_isr_handler(void* arg)
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{
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uint32_t gpio_num = (uint32_t) arg;
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xQueueSendFromISR(gpio_evt_queue, &gpio_num, NULL);
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}
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void gpio_task_example(void* arg)
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{
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static uint8_t i = 0;
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uint32_t io_num;
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for(;;) {
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if(xQueueReceive(gpio_evt_queue, &io_num, portMAX_DELAY)) {
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ESP_LOGI(HID_DEMO_TAG, "GPIO[%d] intr, val: %d\n", io_num, gpio_get_level(io_num));
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if(i == 0) {
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++i;
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}
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}
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}
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}
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static void gpio_demo_init(void)
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{
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gpio_config_t io_conf;
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//disable interrupt
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io_conf.intr_type = GPIO_PIN_INTR_DISABLE;
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//set as output mode
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io_conf.mode = GPIO_MODE_OUTPUT;
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//bit mask of the pins that you want to set,e.g.GPIO18/19
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io_conf.pin_bit_mask = GPIO_OUTPUT_PIN_SEL;
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//disable pull-down mode
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io_conf.pull_down_en = 0;
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//disable pull-up mode
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io_conf.pull_up_en = 0;
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//configure GPIO with the given settings
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gpio_config(&io_conf);
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//interrupt of rising edge
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io_conf.intr_type = GPIO_PIN_INTR_POSEDGE;
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//bit mask of the pins, use GPIO4/5 here
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io_conf.pin_bit_mask = GPIO_INPUT_PIN_SEL;
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//set as input mode
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io_conf.mode = GPIO_MODE_INPUT;
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//enable pull-up mode
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io_conf.pull_up_en = 1;
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gpio_config(&io_conf);
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//change gpio intrrupt type for one pin
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gpio_set_intr_type(GPIO_INPUT_IO_0, GPIO_INTR_ANYEDGE);
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//create a queue to handle gpio event from isr
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gpio_evt_queue = xQueueCreate(10, sizeof(uint32_t));
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//start gpio task
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xTaskCreate(gpio_task_example, "gpio_task_example", 2048, NULL, 10, NULL);
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//install gpio isr service
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gpio_install_isr_service(ESP_INTR_FLAG_DEFAULT);
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//hook isr handler for specific gpio pin
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gpio_isr_handler_add(GPIO_INPUT_IO_0, gpio_isr_handler, (void*) GPIO_INPUT_IO_0);
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//hook isr handler for specific gpio pin
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gpio_isr_handler_add(GPIO_INPUT_IO_1, gpio_isr_handler, (void*) GPIO_INPUT_IO_1);
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//remove isr handler for gpio number.
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gpio_isr_handler_remove(GPIO_INPUT_IO_0);
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//hook isr handler for specific gpio pin again
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gpio_isr_handler_add(GPIO_INPUT_IO_0, gpio_isr_handler, (void*) GPIO_INPUT_IO_0);
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}
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static void hidd_event_callback(esp_hidd_cb_event_t event, esp_hidd_cb_param_t *param)
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{
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switch(event) {
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case ESP_HIDD_EVENT_REG_FINISH: {
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if (param->init_finish.state == ESP_HIDD_INIT_OK) {
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//esp_bd_addr_t rand_addr = {0x04,0x11,0x11,0x11,0x11,0x05};
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esp_ble_gap_set_device_name(HIDD_DEVICE_NAME);
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esp_ble_gap_config_adv_data(&hidd_adv_data);
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}
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break;
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}
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case ESP_BAT_EVENT_REG: {
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break;
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}
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case ESP_HIDD_EVENT_DEINIT_FINISH:
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break;
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case ESP_HIDD_EVENT_BLE_CONNECT: {
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ESP_LOGI(HID_DEMO_TAG, "ESP_HIDD_EVENT_BLE_CONNECT");
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hid_conn_id = param->connect.conn_id;
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break;
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}
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case ESP_HIDD_EVENT_BLE_DISCONNECT: {
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sec_conn = false;
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ESP_LOGI(HID_DEMO_TAG, "ESP_HIDD_EVENT_BLE_DISCONNECT");
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esp_ble_gap_start_advertising(&hidd_adv_params);
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break;
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}
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case ESP_HIDD_EVENT_BLE_VENDOR_REPORT_WRITE_EVT: {
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ESP_LOGI(HID_DEMO_TAG, "%s, ESP_HIDD_EVENT_BLE_VENDOR_REPORT_WRITE_EVT", __func__);
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ESP_LOG_BUFFER_HEX(HID_DEMO_TAG, param->vendor_write.data, param->vendor_write.length);
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}
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default:
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break;
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}
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return;
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}
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static void gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_param_t *param)
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{
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switch (event) {
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case ESP_GAP_BLE_ADV_DATA_SET_COMPLETE_EVT:
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esp_ble_gap_start_advertising(&hidd_adv_params);
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break;
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case ESP_GAP_BLE_SEC_REQ_EVT:
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for(int i = 0; i < ESP_BD_ADDR_LEN; i++) {
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ESP_LOGD(HID_DEMO_TAG, "%x:",param->ble_security.ble_req.bd_addr[i]);
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}
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esp_ble_gap_security_rsp(param->ble_security.ble_req.bd_addr, true);
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break;
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case ESP_GAP_BLE_AUTH_CMPL_EVT:
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sec_conn = true;
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esp_bd_addr_t bd_addr;
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memcpy(bd_addr, param->ble_security.auth_cmpl.bd_addr, sizeof(esp_bd_addr_t));
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ESP_LOGI(HID_DEMO_TAG, "remote BD_ADDR: %08x%04x",\
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(bd_addr[0] << 24) + (bd_addr[1] << 16) + (bd_addr[2] << 8) + bd_addr[3],
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(bd_addr[4] << 8) + bd_addr[5]);
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ESP_LOGI(HID_DEMO_TAG, "address type = %d", param->ble_security.auth_cmpl.addr_type);
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ESP_LOGI(HID_DEMO_TAG, "pair status = %s",param->ble_security.auth_cmpl.success ? "success" : "fail");
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if(!param->ble_security.auth_cmpl.success) {
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ESP_LOGE(HID_DEMO_TAG, "fail reason = 0x%x",param->ble_security.auth_cmpl.fail_reason);
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}
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break;
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default:
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break;
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}
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}
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void hid_demo_task(void *pvParameters)
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{
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vTaskDelay(1000 / portTICK_PERIOD_MS);
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while(1) {
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vTaskDelay(2000 / portTICK_PERIOD_MS);
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if (sec_conn) {
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ESP_LOGI(HID_DEMO_TAG, "Send the volume");
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send_volum_up = true;
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//uint8_t key_vaule = {HID_KEY_A};
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//esp_hidd_send_keyboard_value(hid_conn_id, 0, &key_vaule, 1);
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esp_hidd_send_consumer_value(hid_conn_id, HID_CONSUMER_VOLUME_UP, true);
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vTaskDelay(3000 / portTICK_PERIOD_MS);
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if (send_volum_up) {
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send_volum_up = false;
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esp_hidd_send_consumer_value(hid_conn_id, HID_CONSUMER_VOLUME_UP, false);
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esp_hidd_send_consumer_value(hid_conn_id, HID_CONSUMER_VOLUME_DOWN, true);
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vTaskDelay(3000 / portTICK_PERIOD_MS);
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esp_hidd_send_consumer_value(hid_conn_id, HID_CONSUMER_VOLUME_DOWN, false);
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}
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}
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}
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}
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void app_main()
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{
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esp_err_t ret;
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// Initialize NVS.
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ret = nvs_flash_init();
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if (ret == ESP_ERR_NVS_NO_FREE_PAGES || ret == ESP_ERR_NVS_NEW_VERSION_FOUND) {
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ESP_ERROR_CHECK(nvs_flash_erase());
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ret = nvs_flash_init();
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}
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ESP_ERROR_CHECK( ret );
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ESP_ERROR_CHECK(esp_bt_controller_mem_release(ESP_BT_MODE_CLASSIC_BT));
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esp_bt_controller_config_t bt_cfg = BT_CONTROLLER_INIT_CONFIG_DEFAULT();
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ret = esp_bt_controller_init(&bt_cfg);
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if (ret) {
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ESP_LOGE(HID_DEMO_TAG, "%s initialize controller failed\n", __func__);
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return;
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}
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ret = esp_bt_controller_enable(ESP_BT_MODE_BLE);
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if (ret) {
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ESP_LOGE(HID_DEMO_TAG, "%s enable controller failed\n", __func__);
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return;
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}
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ret = esp_bluedroid_init();
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if (ret) {
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ESP_LOGE(HID_DEMO_TAG, "%s init bluedroid failed\n", __func__);
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return;
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}
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ret = esp_bluedroid_enable();
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if (ret) {
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ESP_LOGE(HID_DEMO_TAG, "%s init bluedroid failed\n", __func__);
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return;
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}
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if((ret = esp_hidd_profile_init()) != ESP_OK) {
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ESP_LOGE(HID_DEMO_TAG, "%s init bluedroid failed\n", __func__);
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}
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///register the callback function to the gap module
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esp_ble_gap_register_callback(gap_event_handler);
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esp_hidd_register_callbacks(hidd_event_callback);
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/* set the security iocap & auth_req & key size & init key response key parameters to the stack*/
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esp_ble_auth_req_t auth_req = ESP_LE_AUTH_BOND; //bonding with peer device after authentication
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esp_ble_io_cap_t iocap = ESP_IO_CAP_NONE; //set the IO capability to No output No input
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uint8_t key_size = 16; //the key size should be 7~16 bytes
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uint8_t init_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
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uint8_t rsp_key = ESP_BLE_ENC_KEY_MASK | ESP_BLE_ID_KEY_MASK;
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esp_ble_gap_set_security_param(ESP_BLE_SM_AUTHEN_REQ_MODE, &auth_req, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_IOCAP_MODE, &iocap, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_MAX_KEY_SIZE, &key_size, sizeof(uint8_t));
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/* If your BLE device act as a Slave, the init_key means you hope which types of key of the master should distribute to you,
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and the response key means which key you can distribute to the Master;
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If your BLE device act as a master, the response key means you hope which types of key of the slave should distribute to you,
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and the init key means which key you can distribute to the slave. */
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esp_ble_gap_set_security_param(ESP_BLE_SM_SET_INIT_KEY, &init_key, sizeof(uint8_t));
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esp_ble_gap_set_security_param(ESP_BLE_SM_SET_RSP_KEY, &rsp_key, sizeof(uint8_t));
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//init the gpio pin
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gpio_demo_init();
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xTaskCreate(&hid_demo_task, "hid_task", 2048, NULL, 5, NULL);
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}
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