feat: 添加 BLE HID 键盘支持与配置
- 在 sdkconfig.defaults 中更新 BLE 配置以支持 HID 键盘功能 - 新增 ble_hid.c 和 ble_hid.h 文件，实现 BLE HID 键盘的核心功能 - 更新 CMakeLists.txt，包含新的服务文件以支持 BLE HID - 修改 ui_handlers.c，响应启动按钮事件以发送 HID 按键 - 更新 ble_manager.c，初始化 BLE HID 功能并处理连接状态 - 新增 esp_hid_gap.c 和 esp_hid_gap.h 文件，管理 BLE HID 的 GAP 相关功能
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+30
-197
@@ -1,96 +1,28 @@
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#include "ble_manager.h"
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#include "board_config.h"
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#include "ble_hid.h"
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#include "esp_log.h"
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#include "sdkconfig.h"
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#if BOARD_BLE_ENABLED
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#include "driver/gpio.h"
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#include "esp_hid_gap.h"
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#include "esp_hid_common.h"
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#include "host/ble_hs.h"
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#include "host/ble_uuid.h"
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#include "host/util/util.h"
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#include "nimble/nimble_port.h"
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#include "nimble/nimble_port_freertos.h"
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#include "services/gap/ble_svc_gap.h"
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#include "services/gatt/ble_svc_gatt.h"
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#include "store/config/ble_store_config.h"
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#include <string.h>
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#define BLE_DEVICE_NAME CONFIG_ESP_BLE_DEVICE_NAME
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#define HHS_SVC_UUID16 0xFFF0
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#define HHS_CHR_UUID16 0xFFF1
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static const char *TAG = "ble_manager";
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#define BLE_DEVICE_NAME CONFIG_ESP_BLE_DEVICE_NAME
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static ble_status_cb_t s_status_cb;
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static bool s_connected;
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static uint8_t s_own_addr_type;
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static uint16_t s_conn_handle = BLE_HS_CONN_HANDLE_NONE;
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static uint8_t s_chr_val[20] = "HeavenlyHeroStar";
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static uint16_t s_chr_val_handle;
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static const ble_uuid16_t s_hhs_svc_uuid = BLE_UUID16_INIT(HHS_SVC_UUID16);
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static const ble_uuid16_t s_hhs_chr_uuid = BLE_UUID16_INIT(HHS_CHR_UUID16);
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static void start_advertising(void);
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static int gap_event_handler(struct ble_gap_event *event, void *arg);
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static int chr_access(uint16_t conn_handle, uint16_t attr_handle,
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struct ble_gatt_access_ctxt *ctxt, void *arg)
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{
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(void)arg;
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if (attr_handle != s_chr_val_handle) {
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return BLE_ATT_ERR_UNLIKELY;
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}
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switch (ctxt->op) {
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case BLE_GATT_ACCESS_OP_READ_CHR:
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return os_mbuf_append(ctxt->om, s_chr_val, sizeof(s_chr_val)) == 0
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? 0
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: BLE_ATT_ERR_INSUFFICIENT_RES;
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case BLE_GATT_ACCESS_OP_WRITE_CHR: {
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uint16_t len = OS_MBUF_PKTLEN(ctxt->om);
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if (len > sizeof(s_chr_val)) {
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return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
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}
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memset(s_chr_val, 0, sizeof(s_chr_val));
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int rc = ble_hs_mbuf_to_flat(ctxt->om, s_chr_val, sizeof(s_chr_val), NULL);
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if (rc != 0) {
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return BLE_ATT_ERR_UNLIKELY;
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}
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ESP_LOGI(TAG, "characteristic write from conn=%d, len=%u", conn_handle, len);
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return 0;
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}
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default:
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return BLE_ATT_ERR_UNLIKELY;
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}
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}
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static const struct ble_gatt_svc_def s_gatt_svcs[] = {
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{
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.type = BLE_GATT_SVC_TYPE_PRIMARY,
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.uuid = &s_hhs_svc_uuid.u,
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.characteristics =
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(struct ble_gatt_chr_def[]){
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{
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.uuid = &s_hhs_chr_uuid.u,
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.access_cb = chr_access,
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.flags = BLE_GATT_CHR_F_READ | BLE_GATT_CHR_F_WRITE,
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.val_handle = &s_chr_val_handle,
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},
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{0},
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},
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},
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{0},
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};
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static void notify_status(bool connected)
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static void on_hid_status(bool connected)
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{
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s_connected = connected;
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gpio_set_level(BOARD_PIN_LED, connected ? 1 : 0);
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@@ -99,119 +31,15 @@ static void notify_status(bool connected)
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}
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}
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static void start_advertising(void)
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{
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struct ble_hs_adv_fields fields = {0};
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struct ble_gap_adv_params adv_params = {0};
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const char *name = ble_svc_gap_device_name();
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int rc;
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fields.flags = BLE_HS_ADV_F_DISC_GEN | BLE_HS_ADV_F_BREDR_UNSUP;
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fields.name = (uint8_t *)name;
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fields.name_len = strlen(name);
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fields.name_is_complete = 1;
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rc = ble_gap_adv_set_fields(&fields);
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if (rc != 0) {
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ESP_LOGE(TAG, "failed to set advertising data: %d", rc);
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return;
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}
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adv_params.conn_mode = BLE_GAP_CONN_MODE_UND;
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adv_params.disc_mode = BLE_GAP_DISC_MODE_GEN;
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rc = ble_gap_adv_start(s_own_addr_type, NULL, BLE_HS_FOREVER, &adv_params,
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gap_event_handler, NULL);
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if (rc != 0) {
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ESP_LOGE(TAG, "failed to start advertising: %d", rc);
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return;
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}
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ESP_LOGI(TAG, "advertising as \"%s\"", name);
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}
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static int gap_event_handler(struct ble_gap_event *event, void *arg)
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{
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(void)arg;
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switch (event->type) {
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case BLE_GAP_EVENT_CONNECT:
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if (event->connect.status == 0) {
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s_conn_handle = event->connect.conn_handle;
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ESP_LOGI(TAG, "connected, handle=%d", s_conn_handle);
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notify_status(true);
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} else {
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ESP_LOGW(TAG, "connection failed, status=%d", event->connect.status);
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start_advertising();
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}
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return 0;
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case BLE_GAP_EVENT_DISCONNECT:
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ESP_LOGI(TAG, "disconnected, reason=%d", event->disconnect.reason);
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s_conn_handle = BLE_HS_CONN_HANDLE_NONE;
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notify_status(false);
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start_advertising();
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return 0;
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case BLE_GAP_EVENT_ADV_COMPLETE:
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start_advertising();
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return 0;
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default:
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return 0;
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}
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}
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static void on_stack_sync(void)
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{
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int rc = ble_hs_util_ensure_addr(0);
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if (rc != 0) {
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ESP_LOGE(TAG, "no available BT address");
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return;
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}
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rc = ble_hs_id_infer_auto(0, &s_own_addr_type);
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if (rc != 0) {
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ESP_LOGE(TAG, "failed to infer address type: %d", rc);
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return;
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}
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start_advertising();
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}
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static void on_stack_reset(int reason)
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{
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ESP_LOGW(TAG, "nimble stack reset, reason=%d", reason);
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}
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static void gatt_register_cb(struct ble_gatt_register_ctxt *ctxt, void *arg)
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{
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(void)ctxt;
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(void)arg;
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}
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static int gatt_svc_init(void)
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{
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int rc;
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ble_svc_gatt_init();
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rc = ble_gatts_count_cfg(s_gatt_svcs);
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if (rc != 0) {
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return rc;
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}
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return ble_gatts_add_svcs(s_gatt_svcs);
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}
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void ble_store_config_init(void);
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static void nimble_host_task(void *param)
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{
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(void)param;
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nimble_port_run();
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vTaskDelete(NULL);
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nimble_port_freertos_deinit();
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}
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void ble_store_config_init(void);
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#endif /* BOARD_BLE_ENABLED */
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void ble_manager_set_status_cb(ble_status_cb_t cb)
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@@ -235,36 +63,41 @@ bool ble_manager_is_connected(void)
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void ble_manager_init(void)
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{
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#if BOARD_BLE_ENABLED
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int rc;
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esp_err_t ret;
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gpio_reset_pin(BOARD_PIN_LED);
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gpio_set_direction(BOARD_PIN_LED, GPIO_MODE_OUTPUT);
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gpio_set_level(BOARD_PIN_LED, 0);
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ESP_ERROR_CHECK(nimble_port_init());
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ble_svc_gap_init();
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rc = ble_svc_gap_device_name_set(BLE_DEVICE_NAME);
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if (rc != 0) {
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ESP_LOGE(TAG, "failed to set device name");
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ESP_LOGI(TAG, "init esp_hid_gap (NimBLE)");
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ret = esp_hid_gap_init(HIDD_BLE_MODE);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "esp_hid_gap_init failed: %d", ret);
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return;
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}
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rc = gatt_svc_init();
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if (rc != 0) {
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ESP_LOGE(TAG, "failed to init GATT service: %d", rc);
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ret = esp_hid_ble_gap_adv_init(ESP_HID_APPEARANCE_KEYBOARD, BLE_DEVICE_NAME);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "esp_hid_ble_gap_adv_init failed: %d", ret);
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return;
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}
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ret = ble_hid_init(on_hid_status);
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if (ret != 0) {
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ESP_LOGE(TAG, "ble_hid_init failed: %d", ret);
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return;
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}
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ble_hs_cfg.reset_cb = on_stack_reset;
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ble_hs_cfg.sync_cb = on_stack_sync;
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ble_hs_cfg.gatts_register_cb = gatt_register_cb;
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ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
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ble_store_config_init();
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ble_hs_cfg.store_status_cb = ble_store_util_status_rr;
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nimble_port_freertos_init(nimble_host_task);
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ret = esp_nimble_enable(nimble_host_task);
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if (ret != ESP_OK) {
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ESP_LOGE(TAG, "esp_nimble_enable failed: %d", ret);
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return;
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}
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ESP_LOGI(TAG, "BLE peripheral started");
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ESP_LOGI(TAG, "BLE HID keyboard started as \"%s\"", BLE_DEVICE_NAME);
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#else
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ESP_LOGI("ble_manager", "BLE disabled by board config");
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#endif
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