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fix(ble/bluedroid): Fixed the connection count limit in multi-connection

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(cherry picked from commit 437aba1653)

Co-authored-by: chenjianhua <chenjianhua@espressif.com>
This commit is contained in:
Chen Jian Hua
2025-08-12 21:34:07 +08:00
parent 4eee831831
commit df8533a46e
4 changed files with 24 additions and 12 deletions
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8
components/bt/host/bluedroid/Kconfig.in
View File

@@ -1210,9 +1210,13 @@ menu "BT DEBUG LOG LEVEL"
endmenu #BT DEBUG LOG LEVEL
config BT_ACL_CONNECTIONS
int "BT/BLE MAX ACL CONNECTIONS(1~9)"
int "BT/BLE MAX ACL CONNECTIONS"
depends on BT_BLUEDROID_ENABLED
range 1 9
range 1 2 if IDF_TARGET_ESP32C2
range 1 9 if IDF_TARGET_ESP32 || IDF_TARGET_ESP32C3 || IDF_TARGET_ESP32S3
range 1 15 if IDF_TARGET_ESP32H2
range 1 50
default 2 if IDF_TARGET_ESP32C2
default 4
help
Maximum BT/BLE connection count. The ESP32-C3/S3 chip supports a maximum of 10 instances,

4
components/bt/host/bluedroid/common/include/common/bt_target.h
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@@ -1132,8 +1132,12 @@
/* The number of security records for peer devices. 15 AS Default*/
#ifndef BTM_SEC_MAX_DEVICE_RECORDS
#if (UC_BT_SMP_MAX_BONDS < UC_BT_ACL_CONNECTIONS)
#define BTM_SEC_MAX_DEVICE_RECORDS UC_BT_ACL_CONNECTIONS
#else
#define BTM_SEC_MAX_DEVICE_RECORDS UC_BT_SMP_MAX_BONDS
#endif
#endif
#if BTA_SDP_INCLUDED
#define BTM_SDP_SEC_SERVICE_RECORDS 1

8
components/bt/host/bluedroid/stack/gatt/gatt_utils.c
View File

@@ -78,7 +78,7 @@ static const UINT8 base_uuid[LEN_UUID_128] = {0xFB, 0x34, 0x9B, 0x5F, 0x80, 0x0
0x00, 0x10, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
static UINT32 gatt_tcb_id;
static UINT8 gatt_tcb_id[GATT_MAX_PHY_CHANNEL / 8 + 1];
/*******************************************************************************
**
@@ -1005,7 +1005,7 @@ UINT8 gatt_find_i_tcb_free(void)
UINT8 i = 0, j = GATT_INDEX_INVALID;
for (i = 0; i < GATT_MAX_PHY_CHANNEL; i ++) {
if (!((1 << i) & gatt_tcb_id)) {
if (!(gatt_tcb_id[i >> 3] & (1 << (i & 0x7)))) {
j = i;
break;
}
@@ -1030,7 +1030,7 @@ tGATT_TCB *gatt_tcb_alloc(UINT8 tcb_idx)
/* Add tcb block to list in gatt_cb */
list_append(gatt_cb.p_tcb_list, p_tcb);
/* Update tcb id */
gatt_tcb_id |= 1 << tcb_idx;
gatt_tcb_id[tcb_idx >> 3] |= (1 << (tcb_idx & 0x7));
} else if (p_tcb) {
osi_free(p_tcb);
p_tcb = NULL;
@@ -1051,7 +1051,7 @@ void gatt_tcb_free( tGATT_TCB *p_tcb)
{
UINT8 tcb_idx = p_tcb->tcb_idx;
if (list_remove(gatt_cb.p_tcb_list, p_tcb)) {
gatt_tcb_id &= ~(1 << tcb_idx);
gatt_tcb_id[tcb_idx >> 3] &= ~(1 << (tcb_idx & 0x7));
}
}
/*******************************************************************************

6
components/bt/host/bluedroid/stack/include/stack/gatt_api.h
View File

@@ -151,7 +151,11 @@ typedef UINT16 tGATT_DISCONN_REASON;
#define GATT_INVALID_CONN_ID 0xFFFF
#ifndef GATT_CL_MAX_LCB
#define GATT_CL_MAX_LCB 12 // 22
#if (GATT_MAX_PHY_CHANNEL > 12)
#define GATT_CL_MAX_LCB GATT_MAX_PHY_CHANNEL
#else
#define GATT_CL_MAX_LCB 12
#endif
#endif
#ifndef GATT_MAX_SCCB