1 files changed, 188 insertions, 0 deletions

diff --git a/embassy-stm32-wpan/src/wba/mac_sys_if.rs b/embassy-stm32-wpan/src/wba/mac_sys_if.rs
new file mode 100644
index 000000000..273399a19
--- /dev/null
+++ b/embassy-stm32-wpan/src/wba/mac_sys_if.rs
@@ -0,0 +1,188 @@
+#![cfg(feature = "wba")]
+#![allow(non_snake_case)]
+
+//
+// /* USER CODE BEGIN Header */
+// /**
+//   ******************************************************************************
+//   * @file    mac_sys_if.c
+//   * @author  MCD Application Team
+//   * @brief   Source file for using MAC Layer with a RTOS
+//   ******************************************************************************
+//   * @attention
+//   *
+//   * Copyright (c) 2025 STMicroelectronics.
+//   * All rights reserved.
+//   *
+//   * This software is licensed under terms that can be found in the LICENSE file
+//   * in the root directory of this software component.
+//   * If no LICENSE file comes with this software, it is provided AS-IS.
+//   *
+//   ******************************************************************************
+//   */
+// /* USER CODE END Header */
+//
+// #include "main.h"
+// #include "app_common.h"
+// #include "app_conf.h"
+// #include "log_module.h"
+// #include "stm32_rtos.h"
+// #include "st_mac_802_15_4_sys.h"
+//
+// extern void mac_baremetal_run(void);
+//
+// /* Private defines -----------------------------------------------------------*/
+// /* USER CODE BEGIN PD */
+//
+// /* USER CODE END PD */
+//
+// /* Private macros ------------------------------------------------------------*/
+// /* USER CODE BEGIN PM */
+//
+// /* USER CODE END PM */
+//
+// /* Private variables ---------------------------------------------------------*/
+// /* USER CODE BEGIN PV */
+//
+// /* USER CODE END PV */
+//
+// /* Global variables ----------------------------------------------------------*/
+// /* USER CODE BEGIN GV */
+//
+// /* USER CODE END GV */
+//
+// /* Functions Definition ------------------------------------------------------*/
+//
+// /**
+//   * @brief  Mac Layer Initialisation
+//   * @param  None
+//   * @retval None
+//   */
+// void MacSys_Init(void)
+// {
+//   /* Register tasks */
+//   UTIL_SEQ_RegTask( TASK_MAC_LAYER, UTIL_SEQ_RFU, mac_baremetal_run);
+// }
+//
+// /**
+//   * @brief  Mac Layer Resume
+//   * @param  None
+//   * @retval None
+//   */
+// void MacSys_Resume(void)
+// {
+//   UTIL_SEQ_ResumeTask( TASK_MAC_LAYER );
+// }
+//
+// /**
+//   * @brief  MAC Layer set Task.
+//   * @param  None
+//   * @retval None
+//   */
+// void MacSys_SemaphoreSet(void)
+// {
+//   UTIL_SEQ_SetTask( TASK_MAC_LAYER, TASK_PRIO_MAC_LAYER );
+// }
+//
+// /**
+//   * @brief  MAC Layer Task wait.
+//   * @param  None
+//   * @retval None
+//   */
+// void MacSys_SemaphoreWait( void )
+// {
+//   /* Not used */
+// }
+//
+// /**
+//   * @brief  MAC Layer set Event.
+//   * @param  None
+//   * @retval None
+//   */
+// void MacSys_EventSet( void )
+// {
+//   UTIL_SEQ_SetEvt( EVENT_MAC_LAYER );
+// }
+//
+// /**
+//   * @brief  MAC Layer wait Event.
+//   * @param  None
+//   * @retval None
+//   */
+// void MacSys_EventWait( void )
+// {
+//   UTIL_SEQ_WaitEvt( EVENT_MAC_LAYER );
+// }
+//
+
+use super::util_seq;
+use crate::bindings::mac;
+
+/// Placeholder value used by the original ST middleware when registering tasks.
+const UTIL_SEQ_RFU: u32 = 0;
+
+/// Bit mask identifying the MAC layer task within the sequencer.
+const TASK_MAC_LAYER_MASK: u32 = 1 << mac::CFG_TASK_ID_T_CFG_TASK_MAC_LAYER;
+
+/// Sequencer priority assigned to the MAC layer task.
+const TASK_PRIO_MAC_LAYER: u32 = mac::CFG_SEQ_PRIO_ID_T_CFG_SEQ_PRIO_0 as u32;
+
+/// Event flag consumed by the MAC task while waiting on notifications.
+const EVENT_MAC_LAYER_MASK: u32 = 1 << 0;
+
+/// Registers the MAC bare-metal runner with the lightweight sequencer.
+///
+/// Mirrors the behaviour of the reference implementation:
+/// `UTIL_SEQ_RegTask(TASK_MAC_LAYER, UTIL_SEQ_RFU, mac_baremetal_run);`
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn MacSys_Init() {
+    util_seq::UTIL_SEQ_RegTask(TASK_MAC_LAYER_MASK, UTIL_SEQ_RFU, Some(mac::mac_baremetal_run));
+}
+
+/**
+ * @brief  Mac Layer Resume
+ * @param  None
+ * @retval None
+ */
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn MacSys_Resume() {
+    util_seq::UTIL_SEQ_ResumeTask(TASK_MAC_LAYER_MASK);
+}
+
+/**
+ * @brief  MAC Layer set Task.
+ * @param  None
+ * @retval None
+ */
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn MacSys_SemaphoreSet() {
+    util_seq::UTIL_SEQ_SetTask(TASK_MAC_LAYER_MASK, TASK_PRIO_MAC_LAYER);
+}
+
+/**
+ * @brief  MAC Layer Task wait.
+ * @param  None
+ * @retval None
+ */
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn MacSys_SemaphoreWait() {}
+
+/**
+ * @brief  MAC Layer set Event.
+ * @param  None
+ * @retval None
+ */
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn MacSys_EventSet() {
+    util_seq::UTIL_SEQ_SetEvt(EVENT_MAC_LAYER_MASK);
+}
+
+/**
+ * @brief  MAC Layer wait Event.
+ * @param  None
+ * @retval None
+ */
+#[unsafe(no_mangle)]
+pub unsafe extern "C" fn MacSys_EventWait() {
+    util_seq::UTIL_SEQ_WaitEvt(EVENT_MAC_LAYER_MASK);
+}