You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
72 lines
2.0 KiB
72 lines
2.0 KiB
//
|
|
// Copyright 2017 The Android Open Source Project
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
//
|
|
|
|
#include "h4_protocol.h"
|
|
|
|
#define LOG_TAG "android.hardware.bluetooth-hci-h4"
|
|
#include <android-base/logging.h>
|
|
#include <assert.h>
|
|
#include <fcntl.h>
|
|
|
|
namespace android {
|
|
namespace hardware {
|
|
namespace bluetooth {
|
|
namespace hci {
|
|
|
|
size_t H4Protocol::Send(uint8_t type, const uint8_t* data, size_t length) {
|
|
int rv = WriteSafely(uart_fd_, &type, sizeof(type));
|
|
if (rv == sizeof(type)) {
|
|
rv = WriteSafely(uart_fd_, data, length);
|
|
}
|
|
return rv;
|
|
}
|
|
|
|
void H4Protocol::OnPacketReady() {
|
|
switch (hci_packet_type_) {
|
|
case HCI_PACKET_TYPE_EVENT:
|
|
event_cb_(hci_packetizer_.GetPacket());
|
|
break;
|
|
case HCI_PACKET_TYPE_ACL_DATA:
|
|
acl_cb_(hci_packetizer_.GetPacket());
|
|
break;
|
|
case HCI_PACKET_TYPE_SCO_DATA:
|
|
sco_cb_(hci_packetizer_.GetPacket());
|
|
break;
|
|
default: {
|
|
bool bad_packet_type = true;
|
|
CHECK(!bad_packet_type);
|
|
}
|
|
}
|
|
// Get ready for the next type byte.
|
|
hci_packet_type_ = HCI_PACKET_TYPE_UNKNOWN;
|
|
}
|
|
|
|
void H4Protocol::OnDataReady(int fd) {
|
|
if (hci_packet_type_ == HCI_PACKET_TYPE_UNKNOWN) {
|
|
uint8_t buffer[1] = {0};
|
|
size_t bytes_read = TEMP_FAILURE_RETRY(read(fd, buffer, 1));
|
|
CHECK(bytes_read == 1);
|
|
hci_packet_type_ = static_cast<HciPacketType>(buffer[0]);
|
|
} else {
|
|
hci_packetizer_.OnDataReady(fd, hci_packet_type_);
|
|
}
|
|
}
|
|
|
|
} // namespace hci
|
|
} // namespace bluetooth
|
|
} // namespace hardware
|
|
} // namespace android
|