alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-09 20:41:14 +00:00
Code Issues Packages Projects Releases Wiki Activity

components/bt: Add api to query the number of available buffers for the current connection

Browse Source
This commit is contained in:
wangcheng
2020-05-11 19:24:09 +08:00
parent 9c7896f2c2
commit e87a42f46c
14 changed files with 158 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

97
components/bt/host/bluedroid/stack/l2cap/l2c_api.c
View File

@@ -36,7 +36,7 @@
#include "stack/btu.h"
#include "stack/btm_api.h"
#include "osi/allocator.h"
#include "gatt_int.h"
#if (CLASSIC_BT_INCLUDED == TRUE)
/*******************************************************************************
**
@@ -1877,6 +1877,15 @@ UINT16 L2CA_GetFreePktBufferNum_LE(void)
{
return l2cb.controller_le_xmit_window;
}
UINT16 L2CA_GetCurFreePktBufferNum_LE(UINT16 conn_id)
{
uint16_t num = 0;
tl2c_buff_param_t param;
param.conn_id = conn_id;
param.get_num = #
l2ble_update_att_acl_pkt_num(L2CA_GET_ATT_NUM, &param);
return num;
}
#endif
/*******************************************************************************
@@ -2265,3 +2274,89 @@ UINT16 L2CA_FlushChannel (UINT16 lcid, UINT16 num_to_flush)
return (num_left);
}
/******************************************************************************
**
** Function update_acl_pkt_num
**
** Description Update the number of att acl packets to be sent in xmit_hold_q.
**
** Returns None
**
*******************************************************************************/
#if BLE_INCLUDED == TRUE
void l2ble_update_att_acl_pkt_num(UINT8 type, tl2c_buff_param_t *param)
{
static SemaphoreHandle_t buff_semaphore = NULL ;
static INT16 btc_buf;
static INT16 btu_buf;
if(buff_semaphore != NULL){
xSemaphoreTake(buff_semaphore, 10 / portTICK_PERIOD_MS);
}
switch (type)
{
case L2CA_ADD_BTC_NUM:{
btc_buf ++;
break;
}
case L2CA_DECREASE_BTC_NUM:{
btc_buf --;
break;
}
case L2CA_ADD_BTU_NUM:{
btu_buf ++;
break;
}
case L2CA_DECREASE_BTU_NUM:{
btu_buf --;
break;
}
case L2CA_GET_ATT_NUM:{
INT16 att_acl_pkt_num = 0;
INT16 att_max_num = 0;
*(param->get_num) = 0;
UINT8 tcb_idx = param->conn_id;
tGATT_TCB * p_tcb = gatt_get_tcb_by_idx(tcb_idx);
if (p_tcb == NULL){
L2CAP_TRACE_ERROR("%s not found p_tcb", __func__);
break;
}
tL2C_LCB * p_lcb = l2cu_find_lcb_by_bd_addr (p_tcb->peer_bda, BT_TRANSPORT_LE);
if (p_lcb == NULL){
L2CAP_TRACE_ERROR("%s not found p_lcb", __func__);
break;
}
fixed_queue_t * queue = p_lcb->p_fixed_ccbs[L2CAP_ATT_CID - L2CAP_FIRST_FIXED_CHNL]->xmit_hold_q;
att_max_num = MIN(p_lcb->link_xmit_quota, L2CAP_CACHE_ATT_ACL_NUM);
if (queue == NULL){
L2CAP_TRACE_ERROR("%s not found queue", __func__);
break;
}
att_acl_pkt_num = fixed_queue_length(queue);
if(att_acl_pkt_num < att_max_num){
if(btc_buf + btu_buf < att_max_num - att_acl_pkt_num){
*(param->get_num) = att_max_num - att_acl_pkt_num - (btc_buf + btu_buf);
}
}
break;
}
case L2CA_BUFF_INI:{
btc_buf = 0;
btu_buf = 0;
buff_semaphore = xSemaphoreCreateBinary();
xSemaphoreGive(buff_semaphore);
break;
}
case L2CA_BUFF_DEINIT:{
btc_buf = 0;
btu_buf = 0;
break;
}
default:
break;
}
xSemaphoreGive(buff_semaphore);
}
#endif