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fix(bt/bluedroid): Fixed HID host reconnection bug and enabled load HID devices

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Closes https://github.com/espressif/esp-idf/issues/18335
This commit is contained in:
liqigan
2026-06-12 11:24:41 +08:00
committed by BOT
parent e9ab88137c
commit cc404fc1ca
3 changed files with 171 additions and 66 deletions
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3
components/bt/host/bluedroid/btc/profile/std/hid/btc_hh.c
View File

@@ -1629,7 +1629,7 @@ void btc_hh_cb_handler(btc_msg_t *msg)
}
btc_hh_cb_to_app(ESP_HIDH_INIT_EVT, &param);
break;
case BTA_HH_DISABLE_EVT:
case BTA_HH_DISABLE_EVT: {
btc_hh_cb.status = BTC_HH_DISABLED;
if (btc_hh_cb.service_dereg_active) {
BTIF_TRACE_DEBUG("BTA_HH_DISABLE_EVT: enabling HID Device service");
@@ -1656,6 +1656,7 @@ void btc_hh_cb_handler(btc_msg_t *msg)
param.deinit.status = p_data->status;
btc_hh_cb_to_app(ESP_HIDH_DEINIT_EVT, &param);
break;
}
case BTA_HH_OPEN_EVT:
BTC_TRACE_DEBUG("handle=%d, status =%d", p_data->conn.handle, p_data->conn.status);
memset(btc_hh_cb.pending_conn_address, 0, BD_ADDR_LEN);

232
components/esp_hid/src/bt_hidh.c
View File

@@ -1,5 +1,5 @@
/*
* SPDX-FileCopyrightText: 2017-2024 Espressif Systems (Shanghai) CO LTD
* SPDX-FileCopyrightText: 2017-2026 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
@@ -14,19 +14,26 @@
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/semphr.h"
#include "osi/fixed_queue.h"
#include "osi/list.h"
#include "string.h"
#include "esp_hidh_api.h"
static const char *TAG = "BT_HIDH";
// element of connection queue
typedef enum {
CONN_FLOW_WAIT_DSCP = 0, // OPEN ok, waiting for GET_DSCP
CONN_FLOW_WAIT_ADD_DEV, // GET_DSCP ok and !added, waiting for ADD_DEV
} conn_flow_state_t;
typedef struct {
esp_hidh_dev_t* dev;
uint8_t handle;
uint8_t state;
} conn_item_t;
typedef struct {
fixed_queue_t *connection_queue; /* Queue of connection */
list_t *connection_queue; /* List of pending connections (accessed only in esp_hh_cb / BTC task context) */
esp_event_loop_handle_t event_loop_handle;
} hidh_local_param_t;
@@ -86,7 +93,7 @@ static char *get_trans_type_str(esp_hid_trans_type_t trans_type)
case ESP_HID_TRANS_MAX:
return "TRANS_MAX";
default:
return "UNKOWN";
return "UNKNOWN";
}
}
@@ -107,14 +114,6 @@ static esp_err_t bt_hidh_get_status(esp_hidh_status_t status)
return ret;
}
static void utl_freebuf(void **p)
{
if (*p != NULL) {
free(*p);
*p = NULL;
}
}
static void transaction_timeout_handler(void *arg)
{
esp_hidh_dev_t *dev = (esp_hidh_dev_t *)arg;
@@ -168,7 +167,8 @@ static inline bool is_trans_done(esp_hidh_dev_t *dev)
static void free_local_param(void)
{
if (hidh_local_param.connection_queue) {
fixed_queue_free(hidh_local_param.connection_queue, free);
list_free(hidh_local_param.connection_queue);
hidh_local_param.connection_queue = NULL;
}
}
@@ -190,6 +190,44 @@ static void open_failed_cb(esp_hidh_dev_t *dev, esp_hidh_status_t status, esp_hi
portMAX_DELAY);
}
// Find the pending connection entry matching |handle|. The connection flow is driven
// entirely from esp_hh_cb (single BTC task context), so no extra locking is required.
static conn_item_t *find_conn_item_by_handle(uint8_t handle)
{
if (hidh_local_param.connection_queue == NULL) {
return NULL;
}
for (const list_node_t *node = list_begin(hidh_local_param.connection_queue);
node != list_end(hidh_local_param.connection_queue); node = list_next(node)) {
conn_item_t *conn_item = (conn_item_t *)list_node(node);
if (conn_item != NULL && conn_item->handle == handle) {
return conn_item;
}
}
return NULL;
}
// Remove a specific entry from the connection list. list_remove() invokes the free
// callback registered in list_new(), releasing the conn_item itself.
static void remove_conn_item(conn_item_t *conn_item)
{
if (conn_item != NULL && hidh_local_param.connection_queue != NULL) {
list_remove(hidh_local_param.connection_queue, conn_item);
}
}
static const char *conn_flow_state_str(conn_flow_state_t state)
{
switch (state) {
case CONN_FLOW_WAIT_DSCP:
return "WAIT_DSCP";
case CONN_FLOW_WAIT_ADD_DEV:
return "WAIT_ADD_DEV";
default:
return "UNKNOWN";
}
}
static void esp_hh_cb(esp_hidh_cb_event_t event, esp_hidh_cb_param_t *param)
{
conn_item_t *conn_item = NULL;
@@ -265,8 +303,16 @@ static void esp_hh_cb(esp_hidh_cb_event_t event, esp_hidh_cb_param_t *param)
break;
}
conn_item->dev = dev;
bool ret = fixed_queue_enqueue(hidh_local_param.connection_queue, conn_item, FIXED_QUEUE_MAX_TIMEOUT);
assert(ret == true);
conn_item->handle = param->open.handle;
conn_item->state = CONN_FLOW_WAIT_DSCP;
bool ret = list_append(hidh_local_param.connection_queue, conn_item);
if (!ret) {
ESP_LOGE(TAG, "conn_item enqueue failed!");
free(conn_item);
conn_item = NULL;
param->open.status = ESP_HIDH_ERR_NO_RES;
break;
}
} while (0);
if (param->open.status != ESP_HIDH_OK) {
@@ -282,38 +328,57 @@ static void esp_hh_cb(esp_hidh_cb_event_t event, esp_hidh_cb_param_t *param)
break;
}
case ESP_HIDH_GET_DSCP_EVT: {
bool post_open = false;
bool report_open_failed = false;
esp_hidh_status_t open_failed_status = ESP_HIDH_OK;
do {
ESP_LOGV(TAG, "DESCRIPTOR: PID: 0x%04x, VID: 0x%04x, VERSION: 0x%04x, REPORT_LEN: %u",
param->dscp.product_id, param->dscp.vendor_id, param->dscp.version, param->dscp.dl_len);
if ((conn_item = (conn_item_t *)fixed_queue_dequeue(hidh_local_param.connection_queue,
FIXED_QUEUE_MAX_TIMEOUT)) == NULL) {
ESP_LOGE(TAG, "No pending connect device!");
param->dscp.status = ESP_HIDH_NO_CONNECTION;
conn_item = find_conn_item_by_handle(param->dscp.handle);
if (!conn_item) {
ESP_LOGE(TAG, "No pending connect device for handle %d!", param->dscp.handle);
break;
}
dev = conn_item->dev;
utl_freebuf((void **)&conn_item);
// in case the dev has been freed
if (!esp_hidh_dev_exists(dev)) {
ESP_LOGE(TAG, "Device Not Found");
dev = NULL;
param->dscp.status = ESP_HIDH_NO_CONNECTION;
report_open_failed = true;
open_failed_status = param->dscp.status;
break;
}
if (conn_item->state != CONN_FLOW_WAIT_DSCP) {
ESP_LOGW(TAG, "Unexpected flow state for GET_DSCP: %s", conn_flow_state_str(conn_item->state));
param->dscp.status = ESP_HIDH_NO_CONNECTION;
report_open_failed = true;
open_failed_status = param->dscp.status;
break;
}
// check if connected
esp_hidh_dev_lock(dev);
if (!dev->connected) {
esp_hidh_dev_unlock(dev);
ESP_LOGE(TAG, "Connection has been released!");
param->dscp.status = ESP_HIDH_NO_CONNECTION;
report_open_failed = true;
open_failed_status = param->dscp.status;
break;
}
// check if get descriptor failed
if (param->dscp.status != ESP_HIDH_OK) {
esp_hidh_dev_unlock(dev);
ESP_LOGE(TAG, "GET_DSCP ERROR: %s", s_esp_hh_status_names[param->dscp.status]);
report_open_failed = true;
open_failed_status = param->dscp.status;
break;
}
dev->added = param->dscp.added;
dev->config.product_id = param->dscp.product_id;
dev->config.vendor_id = param->dscp.vendor_id;
@@ -377,25 +442,40 @@ static void esp_hh_cb(esp_hidh_cb_event_t event, esp_hidh_cb_param_t *param)
}
}
esp_hidh_dev_unlock(dev);
} while (0);
if (param->dscp.status != ESP_HIDH_OK) {
open_failed_cb(dev, param->dscp.status, &p, event_data_size);
}
if (param->dscp.status == ESP_HIDH_OK && !param->dscp.added) {
// New device path: lower layer has called AddDev, next stage waits ADD_DEV.
conn_item->state = CONN_FLOW_WAIT_ADD_DEV;
}
} while (0);
if (dev != NULL) {
esp_hidh_dev_lock(dev);
dev->status = param->dscp.status;
// if has been added by lower layer, tell up layer
if (dev->status == ESP_HIDH_OK && dev->connected && dev->added) {
p.open.status = bt_hidh_get_status(ESP_HIDH_OK);
p.open.dev = dev;
esp_hidh_dev_unlock(dev);
esp_event_post_to(hidh_local_param.event_loop_handle, ESP_HIDH_EVENTS, ESP_HIDH_OPEN_EVENT, &p,
event_data_size, portMAX_DELAY);
} else {
esp_hidh_dev_unlock(dev);
// Device is already added, no ADD_DEV_EVT will follow. Report OPEN here.
post_open = true;
} else if (dev->status != ESP_HIDH_OK) {
report_open_failed = true;
open_failed_status = dev->status;
} else if (dev->added && !dev->connected) {
report_open_failed = true;
open_failed_status = ESP_HIDH_NO_CONNECTION;
}
esp_hidh_dev_unlock(dev);
}
if (param->dscp.status != ESP_HIDH_OK || param->dscp.added) {
remove_conn_item(conn_item);
}
if (report_open_failed) {
open_failed_cb(dev, open_failed_status, &p, event_data_size);
} else if (post_open) {
p.open.status = bt_hidh_get_status(ESP_HIDH_OK);
p.open.dev = dev;
esp_event_post_to(hidh_local_param.event_loop_handle, ESP_HIDH_EVENTS, ESP_HIDH_OPEN_EVENT, &p,
event_data_size, portMAX_DELAY);
}
break;
}
@@ -403,34 +483,51 @@ static void esp_hh_cb(esp_hidh_cb_event_t event, esp_hidh_cb_param_t *param)
ESP_LOGV(TAG, "ADD_DEV: BDA: " ESP_BD_ADDR_STR ", handle: %d, status: %s",
ESP_BD_ADDR_HEX(param->add_dev.bd_addr), param->add_dev.handle,
s_esp_hh_status_names[param->add_dev.status]);
do {
dev = esp_hidh_dev_get_by_handle(param->add_dev.handle);
if (dev == NULL) {
ESP_LOGE(TAG, "Device Not Found");
param->add_dev.status = ESP_HIDH_NO_CONNECTION;
break;
}
esp_hidh_dev_lock(dev);
dev->added = param->add_dev.status == ESP_HIDH_OK ? true : false;
esp_hidh_dev_unlock(dev);
} while (0);
if (param->add_dev.status != ESP_HIDH_OK) {
ESP_LOGE(TAG, "ADD_DEV ERROR: %s", s_esp_hh_status_names[param->add_dev.status]);
open_failed_cb(dev, param->add_dev.status, &p, event_data_size);
conn_item = find_conn_item_by_handle(param->add_dev.handle);
if (!conn_item) {
// Non-connect flow (e.g. loading bonded devices from NVS after enable).
ESP_LOGW(TAG, "ADD_DEV without pending connection (handle %d), ignored", param->add_dev.handle);
break;
}
if (dev != NULL) {
esp_hidh_dev_lock(dev);
dev->status = param->add_dev.status;
if (dev->status == ESP_HIDH_OK && dev->connected && dev->added) {
p.open.status = bt_hidh_get_status(ESP_HIDH_OK);
p.open.dev = dev;
esp_hidh_dev_unlock(dev);
esp_event_post_to(hidh_local_param.event_loop_handle, ESP_HIDH_EVENTS, ESP_HIDH_OPEN_EVENT, &p,
event_data_size, portMAX_DELAY);
} else {
esp_hidh_dev_unlock(dev);
dev = conn_item->dev;
if (conn_item->state != CONN_FLOW_WAIT_ADD_DEV) {
ESP_LOGW(TAG, "Unexpected flow state for ADD_DEV: %s", conn_flow_state_str(conn_item->state));
// Drop the stale entry so it can't block subsequent connections, and make
// sure the application is notified instead of silently hanging.
remove_conn_item(conn_item);
if (dev != NULL && esp_hidh_dev_exists(dev)) {
open_failed_cb(dev, ESP_HIDH_NO_CONNECTION, &p, event_data_size);
}
break;
}
remove_conn_item(conn_item);
if (dev == NULL || !esp_hidh_dev_exists(dev)) {
ESP_LOGE(TAG, "Device Not Found");
break;
}
int status = param->add_dev.status;
bool connected = false;
bool added = false;
esp_hidh_dev_lock(dev);
dev->status = status;
dev->added = (status == ESP_HIDH_OK);
connected = dev->connected;
added = dev->added;
esp_hidh_dev_unlock(dev);
if (status == ESP_HIDH_OK && connected && added) {
p.open.status = bt_hidh_get_status(ESP_HIDH_OK);
p.open.dev = dev;
esp_event_post_to(hidh_local_param.event_loop_handle, ESP_HIDH_EVENTS, ESP_HIDH_OPEN_EVENT, &p,
event_data_size, portMAX_DELAY);
} else {
ESP_LOGE(TAG, "ADD_DEV ERROR: %s connected:%d added:%d", s_esp_hh_status_names[status], connected, added);
open_failed_cb(dev, status != ESP_HIDH_OK ? status : ESP_HIDH_NO_CONNECTION, &p, event_data_size);
}
break;
}
@@ -440,6 +537,13 @@ static void esp_hh_cb(esp_hidh_cb_event_t event, esp_hidh_cb_param_t *param)
break;
}
ESP_LOGV(TAG, "CLOSE: handle: %d, status: %s", param->close.handle, s_esp_hh_status_names[param->close.status]);
// Drop any still-pending connection entry for this handle. If the link is torn
// down mid-flow (WAIT_DSCP / WAIT_ADD_DEV), the device itself is freed via the
// CLOSE_EVENT wrapper below; the conn_item must be removed here to avoid a leak
// and a dangling conn_item->dev that could mis-fire a later same-handle connection.
// No OPEN failure is posted here on purpose: CLOSE_EVENT already frees the device,
// and posting OPEN would free the same device twice.
remove_conn_item(find_conn_item_by_handle(param->close.handle));
do {
dev = esp_hidh_dev_get_by_handle(param->close.handle);
if (dev == NULL) {
@@ -809,7 +913,7 @@ static esp_err_t esp_bt_hidh_dev_set_report(esp_hidh_dev_t *dev, size_t map_inde
esp_hidh_dev_report_t *report = NULL;
do {
if (!is_trans_done(dev)) {
ESP_LOGE(TAG, "Pending previous tansaction %s done, try later!", get_trans_type_str(dev->trans_type));
ESP_LOGE(TAG, "Pending previous transaction %s done, try later!", get_trans_type_str(dev->trans_type));
ret = ESP_FAIL;
break;
}
@@ -859,7 +963,7 @@ static esp_err_t esp_bt_hidh_dev_report_read(esp_hidh_dev_t *dev, size_t map_ind
esp_hidh_dev_report_t *report = NULL;
do {
if (!is_trans_done(dev)) {
ESP_LOGE(TAG, "Pending previous tansaction %s done, try later!", get_trans_type_str(dev->trans_type));
ESP_LOGE(TAG, "Pending previous transaction %s done, try later!", get_trans_type_str(dev->trans_type));
ret = ESP_FAIL;
break;
}
@@ -885,7 +989,7 @@ static esp_err_t esp_bt_hidh_dev_get_idle(esp_hidh_dev_t *dev)
esp_err_t ret = ESP_OK;
do {
if (!is_trans_done(dev)) {
ESP_LOGE(TAG, "Pending previous tansaction %s done, try later!", get_trans_type_str(dev->trans_type));
ESP_LOGE(TAG, "Pending previous transaction %s done, try later!", get_trans_type_str(dev->trans_type));
ret = ESP_FAIL;
break;
}
@@ -908,7 +1012,7 @@ static esp_err_t esp_bt_hidh_dev_set_idle(esp_hidh_dev_t *dev, uint8_t idle_time
esp_err_t ret = ESP_OK;
do {
if (!is_trans_done(dev)) {
ESP_LOGE(TAG, "Pending previous tansaction %s done, try later!", get_trans_type_str(dev->trans_type));
ESP_LOGE(TAG, "Pending previous transaction %s done, try later!", get_trans_type_str(dev->trans_type));
ret = ESP_FAIL;
break;
}
@@ -931,7 +1035,7 @@ static esp_err_t esp_bt_hidh_dev_get_protocol(esp_hidh_dev_t *dev)
esp_err_t ret = ESP_OK;
do {
if (!is_trans_done(dev)) {
ESP_LOGE(TAG, "Pending previous tansaction %s done, try later!", get_trans_type_str(dev->trans_type));
ESP_LOGE(TAG, "Pending previous transaction %s done, try later!", get_trans_type_str(dev->trans_type));
ret = ESP_FAIL;
break;
}
@@ -955,7 +1059,7 @@ static esp_err_t esp_bt_hidh_dev_set_protocol(esp_hidh_dev_t *dev, uint8_t proto
do {
if (!is_trans_done(dev)) {
ESP_LOGE(TAG, "Pending previous tansaction %s done, try later!", get_trans_type_str(dev->trans_type));
ESP_LOGE(TAG, "Pending previous transaction %s done, try later!", get_trans_type_str(dev->trans_type));
ret = ESP_FAIL;
break;
}
@@ -993,7 +1097,7 @@ esp_err_t esp_bt_hidh_init(const esp_hidh_config_t *config)
esp_err_t ret = ESP_OK;
ESP_RETURN_ON_FALSE(config, ESP_ERR_INVALID_ARG, TAG, "Config is NULL");
hidh_local_param.connection_queue = fixed_queue_new(QUEUE_SIZE_MAX);
hidh_local_param.connection_queue = list_new(free);
ESP_RETURN_ON_FALSE(hidh_local_param.connection_queue, ESP_ERR_NO_MEM, TAG, "Alloc failed");
hidh_local_param.event_loop_handle = esp_hidh_get_event_loop();

2
examples/bluetooth/esp_hid_host/main/esp_hid_gap.c
View File

@@ -307,6 +307,7 @@ void print_uuid(esp_bt_uuid_t *uuid)
uuid->uuid.uuid128[13], uuid->uuid.uuid128[14], uuid->uuid.uuid128[15]);
}
}
#endif /* !CONFIG_BT_NIMBLE_ENABLED */
#if CONFIG_BT_HID_HOST_ENABLED
static void handle_bt_device_result(struct disc_res_param *disc_res)
@@ -654,7 +655,6 @@ static void ble_gap_event_handler(esp_gap_ble_cb_event_t event, esp_ble_gap_cb_p
break;
}
}
#endif
static esp_err_t init_ble_gap(void)
{