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fix(bt): retry when L2CAP write fails

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This commit is contained in:
xiongweichao
2025-12-24 19:21:54 +08:00
parent 159a16b2f5
commit 436ba67fed
1 changed files with 10 additions and 1 deletions
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11
components/bt/host/bluedroid/btc/profile/std/l2cap/btc_l2cap.c
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@@ -1026,6 +1026,15 @@ void btc_l2cap_cb_handler(btc_msg_t *msg)
p_buf->event++;
BTA_JvL2capWrite(p_data->l2c_write.handle, slot->id, p_buf->data + p_buf->offset, p_buf->len, (void *)slot->id);
}
} else {
if (!p_data->l2c_write.cong && slot->connected) {
// retry
BTA_JvL2capWrite(p_data->l2c_write.handle, slot->id, p_buf->data + p_buf->offset, p_buf->len, (void *)slot->id);
} else {
p_buf->event--;
// Reset layer-specific flag to 0, marking packet as ready for transmission
p_buf->layer_specific = 0;
}
}
}
osi_mutex_unlock(&l2cap_local_param.l2cap_slot_mutex);
@@ -1086,7 +1095,7 @@ static ssize_t l2cap_vfs_write(int fd, const void * data, size_t size)
}
p_buf->offset = 0;
p_buf->len = write_size;
p_buf->event = 0; // indicate the p_buf be sent count
p_buf->event = 0; // Indicate the count of successful sends of p_buf
p_buf->layer_specific = 0; // indicate the p_buf whether to be sent, 0 - ready to send; 1 - have sent
memcpy((UINT8 *)(p_buf + 1), data + sent, write_size);
}