1 files changed, 67 insertions, 0 deletions
diff --git a/pw_system/zephyr_target_hooks.cc b/pw_system/zephyr_target_hooks.cc
new file mode 100644
index 000000000..3566d2713
--- /dev/null
+++ b/pw_system/zephyr_target_hooks.cc
@@ -0,0 +1,67 @@
+// Copyright 2023 The Pigweed Authors
+//
+// 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
+//
+//     https://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 "pw_thread/thread.h"
+#include "pw_thread_zephyr/config.h"
+#include "pw_thread_zephyr/options.h"
+
+namespace pw::system {
+
+using namespace pw::thread::zephyr::config;
+
+// Low to high priorities.
+enum class ThreadPriority : int {
+  kWorkQueue = kDefaultPriority,
+  // TODO(amontanez): These should ideally be at different priority levels, but
+  // there's synchronization issues when they are.
+  kLog = kWorkQueue,
+  kRpc = kWorkQueue,
+  kNumPriorities,
+};
+
+static constexpr size_t kLogThreadStackWords =
+    CONFIG_PIGWEED_SYSTEM_TARGET_HOOKS_LOG_STACK_SIZE;
+static thread::zephyr::StaticContextWithStack<kLogThreadStackWords>
+    log_thread_context;
+const thread::Options& LogThreadOptions() {
+  static constexpr auto options =
+      pw::thread::zephyr::Options(log_thread_context)
+          .set_priority(static_cast<int>(ThreadPriority::kLog));
+  return options;
+}
+
+static constexpr size_t kRpcThreadStackWords =
+    CONFIG_PIGWEED_SYSTEM_TARGET_HOOKS_RPC_STACK_SIZE;
+static thread::zephyr::StaticContextWithStack<kRpcThreadStackWords>
+    rpc_thread_context;
+const thread::Options& RpcThreadOptions() {
+  static constexpr auto options =
+      pw::thread::zephyr::Options(rpc_thread_context)
+          .set_priority(static_cast<int>(ThreadPriority::kRpc));
+  return options;
+}
+
+static constexpr size_t kWorkQueueThreadStackWords =
+    CONFIG_PIGWEED_SYSTEM_TARGET_HOOKS_WORK_QUEUE_STACK_SIZE;
+static thread::zephyr::StaticContextWithStack<kWorkQueueThreadStackWords>
+    work_queue_thread_context;
+
+const thread::Options& WorkQueueThreadOptions() {
+  static constexpr auto options =
+      pw::thread::zephyr::Options(work_queue_thread_context)
+          .set_priority(static_cast<int>(ThreadPriority::kWorkQueue));
+  return options;
+}
+
+}  // namespace pw::system
+\ No newline at end of file