/******************************************************************************
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*
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* Copyright 2015 Google Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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******************************************************************************/
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#include <base/logging.h>
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#include "hci/include/btsnoop_mem.h"
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static btsnoop_data_cb data_callback = NULL;
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void btsnoop_mem_set_callback(btsnoop_data_cb cb) { data_callback = cb; }
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void btsnoop_mem_capture(const BT_HDR* packet, uint64_t timestamp_us) {
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if (!data_callback) return;
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CHECK(packet);
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const uint8_t* data = &packet->data[packet->offset];
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const uint16_t type = packet->event & BT_EVT_MASK;
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size_t length = 0;
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switch (type) {
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case BT_EVT_TO_LM_HCI_CMD:
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if (packet->len > 2) length = data[2] + 3;
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break;
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case BT_EVT_TO_BTU_HCI_EVT:
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if (packet->len > 1) length = data[1] + 2;
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break;
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case BT_EVT_TO_LM_HCI_ACL:
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case BT_EVT_TO_BTU_HCI_ACL:
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if (packet->len > 3) length = (data[2] | (data[3] << 8)) + 4;
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break;
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case BT_EVT_TO_LM_HCI_SCO:
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case BT_EVT_TO_BTU_HCI_SCO:
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if (packet->len > 2) length = data[2] + 3;
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break;
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}
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if (length) (*data_callback)(type, data, length, timestamp_us);
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}
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