mirror of
https://github.com/demik/quack.git
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208 lines
7.0 KiB
C
208 lines
7.0 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.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_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 "esp_hidh.h"
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#include "esp_hid_gap.h"
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#include "blue.h"
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#include "gpio.h"
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#include "led.h"
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#define BTMOUSE_BUTTON1 (1 << 0)
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#define BTMOUSE_BUTTON2 (1 << 1)
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#define BTMOUSE_BUTTON3 (1 << 2)
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#define BTMOUSE_BUTTONE 248
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/* debug tag */
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static const char *TAG = "blue";
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void hidh_callback(void *handler_args, esp_event_base_t base, int32_t id, void *event_data)
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{
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esp_hidh_event_t event = (esp_hidh_event_t)id;
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esp_hidh_event_data_t *param = (esp_hidh_event_data_t *)event_data;
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const uint8_t *bda = NULL;
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/*
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* bda = esp_hidh_event_data_t = union
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*
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* struct {
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* esp_hidh_dev_t *dev; // HID Remote bluetooth device
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* } open;
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*
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* struct {
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* esp_hidh_dev_t *dev; // HID Remote bluetooth device
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* int reason; // Reason why the connection was closed. BLE Only
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* } close;
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*
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* struct {
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* esp_hidh_dev_t *dev; // HID Remote bluetooth device
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* uint8_t level; // Battery Level (0-100%)
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* } battery;
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*
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* struct {
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* esp_hidh_dev_t *dev; // HID Remote bluetooth device
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* esp_hid_usage_t usage; // HID report usage
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* uint16_t report_id; // HID report index
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* uint16_t length; // HID data length
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* uint8_t *data; // The pointer to the HID data
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* uint8_t map_index; // HID report map index
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* } input;
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*
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* struct {
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* esp_hidh_dev_t *dev; // HID Remote bluetooth device
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* esp_hid_usage_t usage; // HID report usage
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* uint16_t report_id; // HID report index
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* uint16_t length; // HID data length
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* uint8_t *data; // The pointer to the HID data
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* uint8_t map_index; // HID report map index
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* } feature;
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*/
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char click;
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short x, y;
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switch (event) {
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case ESP_HIDH_OPEN_EVENT: {
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blue_open(param);
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break;
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}
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case ESP_HIDH_BATTERY_EVENT: {
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bda = esp_hidh_dev_bda_get(param->battery.dev);
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ESP_LOGI(TAG, ESP_BD_ADDR_STR " battery: %d%%", ESP_BD_ADDR_HEX(bda), param->battery.level);
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break;
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}
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case ESP_HIDH_INPUT_EVENT: {
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bda = esp_hidh_dev_bda_get(param->input.dev);
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ESP_LOGD(TAG, ESP_BD_ADDR_STR " INPUT: %8s, MAP: %2u, ID: %3u, Len: %d, Data:", ESP_BD_ADDR_HEX(bda), esp_hid_usage_str(param->input.usage), param->input.map_index, param->input.report_id, param->input.length);
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ESP_LOG_BUFFER_HEX(TAG, param->input.data, param->input.length);
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xTaskNotify(t_yellow, LED_ONCE, eSetValueWithOverwrite);
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memcpy (&click, param->input.data, sizeof(uint8_t));
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click = click & (BTMOUSE_BUTTON1 | BTMOUSE_BUTTON2 | BTMOUSE_BUTTON3);
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if (click)
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ESP_LOGI(TAG, "CLICK: %d", click);
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break;
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}
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case ESP_HIDH_FEATURE_EVENT: {
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bda = esp_hidh_dev_bda_get(param->feature.dev);
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ESP_LOGI(TAG, ESP_BD_ADDR_STR " FEATURE: %8s, MAP: %2u, ID: %3u, Len: %d", ESP_BD_ADDR_HEX(bda), esp_hid_usage_str(param->feature.usage), param->feature.map_index, param->feature.report_id, param->feature.length);
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ESP_LOG_BUFFER_HEX(TAG, param->feature.data, param->feature.length);
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break;
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}
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case ESP_HIDH_CLOSE_EVENT: {
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bda = esp_hidh_dev_bda_get(param->close.dev);
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ESP_LOGI(TAG, "closed connection with device " ESP_BD_ADDR_STR ", reason: %s", ESP_BD_ADDR_HEX(bda),
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esp_hid_disconnect_reason_str(esp_hidh_dev_transport_get(param->close.dev), param->close.reason));
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esp_hidh_dev_free(param->close.dev);
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xTaskNotify(t_blue, LED_SLOW, eSetValueWithOverwrite);
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break;
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}
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default:
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ESP_LOGI(TAG, "Unknwown event: %d", event);
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}
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}
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void blue_init(void)
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{
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esp_err_t ret;
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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_hid_gap_init(ESP_BT_MODE_BTDM));
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ESP_ERROR_CHECK(esp_ble_gattc_register_callback(esp_hidh_gattc_event_handler));
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esp_hidh_config_t config = {
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.callback = hidh_callback,
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};
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ESP_ERROR_CHECK(esp_hidh_init(&config));
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/*
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* at this point, everything but bluetooth is started.
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* put green steady, start blinking blue and keep scanning until a device is found
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*/
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xTaskNotify(t_green, LED_ON, eSetValueWithOverwrite);
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xTaskNotify(t_blue, LED_SLOW, eSetValueWithOverwrite);
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xTaskCreatePinnedToCore(&blue_scan, "hid_task", 6 * 1024, NULL, 2, NULL, 0);
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}
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void blue_open(esp_hidh_event_data_t *p) {
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const uint8_t *bda = NULL;
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bda = esp_hidh_dev_bda_get(p->open.dev);
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ESP_LOGI(TAG, "opened connection with " ESP_BD_ADDR_STR, ESP_BD_ADDR_HEX(bda));
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esp_hidh_dev_dump(p->open.dev, stdout);
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xTaskNotify(t_blue, LED_ON, eSetValueWithOverwrite);
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gpio_output_enable();
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}
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void blue_scan(void *pvParameters) {
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size_t len = 0;
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esp_hid_scan_result_t *mouse = NULL;
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esp_hid_scan_result_t *results = NULL;
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ESP_LOGI(TAG, "starting scan on core %d…", xPortGetCoreID());
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esp_hid_scan(BLUE_SCAN_DURATION, &len, &results);
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ESP_LOGI(TAG, "scan returned %u result(s)", len);
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if (len) {
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esp_hid_scan_result_t *r = results;
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while (r) {
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ESP_LOGI(TAG, "found %s device: " ESP_BD_ADDR_STR ", RSSI: %d, NAME: %s",
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(r->transport == ESP_HID_TRANSPORT_BLE) ? "BLE" : "BT",
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ESP_BD_ADDR_HEX(r->bda), r->rssi, r->name ? r->name : "");
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if (r->transport == ESP_HID_TRANSPORT_BLE) {
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printf("APPEARANCE: 0x%04x, ", r->ble.appearance);
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printf("ADDR_TYPE: '%s', ", ble_addr_type_str(r->ble.addr_type));
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} else {
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if (strcmp("PERIPHERAL", esp_hid_cod_major_str(r->bt.cod.major)) == 0
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&& (r->bt.cod.minor & ESP_HID_COD_MIN_MOUSE)) {
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ESP_LOGI(TAG, "found generic mouse");
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mouse = r;
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}
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}
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r = r->next;
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}
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// try to connect to the last mouse found
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if (mouse)
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esp_hidh_dev_open(mouse->bda, mouse->transport, mouse->ble.addr_type);
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else
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ESP_LOGI(TAG, "devices found but no mouse detected");
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esp_hid_scan_results_free(results);
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}
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vTaskDelete(NULL);
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}
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