Bring multi-channel transport into the glorious new age
Some devices still use MCT as their UART protocol, so
we need to bring it forward to the fresh new HAL.
Also, adding tests for H4 while I'm here.
Test: new unit tests pass and a device using MCT now
boots BT again \o/
Fixes: 34992730
Change-Id: Idb8e536a2779929ad8a0d4bac492c3011995cd79
diff --git a/bluetooth/1.0/default/mct_protocol.cc b/bluetooth/1.0/default/mct_protocol.cc
new file mode 100644
index 0000000..813cebd
--- /dev/null
+++ b/bluetooth/1.0/default/mct_protocol.cc
@@ -0,0 +1,71 @@
+//
+// 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 "mct_protocol.h"
+
+#include <assert.h>
+
+#define LOG_TAG "android.hardware.bluetooth-hci-mct"
+#include <android-base/logging.h>
+#include <utils/Log.h>
+
+#include <fcntl.h>
+
+namespace android {
+namespace hardware {
+namespace bluetooth {
+namespace hci {
+
+MctProtocol::MctProtocol(int* fds, PacketReadCallback event_cb,
+ PacketReadCallback acl_cb)
+ : event_cb_(event_cb),
+ acl_cb_(acl_cb),
+ event_packetizer_([this]() { OnEventPacketReady(); }),
+ acl_packetizer_([this]() { OnAclDataPacketReady(); }) {
+ for (int i = 0; i < CH_MAX; i++) {
+ uart_fds_[i] = fds[i];
+ }
+}
+
+size_t MctProtocol::Send(uint8_t type, const uint8_t* data, size_t length) {
+ if (type == HCI_PACKET_TYPE_COMMAND)
+ return WriteSafely(uart_fds_[CH_CMD], data, length);
+ if (type == HCI_PACKET_TYPE_ACL_DATA)
+ return WriteSafely(uart_fds_[CH_ACL_OUT], data, length);
+ CHECK(type == HCI_PACKET_TYPE_COMMAND || type == HCI_PACKET_TYPE_ACL_DATA);
+ return 0;
+}
+
+void MctProtocol::OnEventPacketReady() {
+ event_cb_(event_packetizer_.GetPacket());
+}
+
+void MctProtocol::OnAclDataPacketReady() {
+ acl_cb_(acl_packetizer_.GetPacket());
+}
+
+void MctProtocol::OnEventDataReady(int fd) {
+ event_packetizer_.OnDataReady(fd, HCI_PACKET_TYPE_EVENT);
+}
+
+void MctProtocol::OnAclDataReady(int fd) {
+ acl_packetizer_.OnDataReady(fd, HCI_PACKET_TYPE_ACL_DATA);
+}
+
+} // namespace hci
+} // namespace bluetooth
+} // namespace hardware
+} // namespace android