1 files changed, 139 insertions, 0 deletions
diff --git a/os/hal/ports/AVR/XMEGA/LLD/WDGv1/hal_wdg_lld.h b/os/hal/ports/AVR/XMEGA/LLD/WDGv1/hal_wdg_lld.h
new file mode 100644
index 000000000..594758c5b
--- /dev/null
+++ b/os/hal/ports/AVR/XMEGA/LLD/WDGv1/hal_wdg_lld.h
@@ -0,0 +1,139 @@
+/*
+    ChibiOS - Copyright (C) 2016..2018 Theodore Ateba
+
+    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.
+*/
+
+/**
+ * @file    WDGv1/hal_wdg_lld.h
+ * @brief   WDG Driver subsystem low level driver header.
+ *
+ * @addtogroup WDG
+ * @{
+ */
+
+#ifndef HAL_WDG_LLD_H
+#define HAL_WDG_LLD_H
+
+#if (HAL_USE_WDG == TRUE) || defined(__DOXYGEN__)
+
+/*==========================================================================*/
+/* Driver constants.                                                        */
+/*==========================================================================*/
+
+/*==========================================================================*/
+/* Driver pre-compile time settings.                                        */
+/*==========================================================================*/
+
+/**
+ * @name    Configuration options
+ * @{
+ */
+/**
+ * @brief   WDT driver enable switch.
+ * @note    The default is @p FALSE.
+ */
+#if !defined(AVR_WDG_USE_WDT) || defined(__DOXYGEN__)
+#define AVR_WDG_USE_WDT                     FALSE
+#endif
+/** @} */
+
+/*==========================================================================*/
+/* Derived constants and error checks.                                      */
+/*==========================================================================*/
+
+#define AVR_HAS_WDG   TRUE
+
+#if AVR_WDG_USE_WDT && !AVR_HAS_WDG
+#error "WDT not present in the selected device"
+#endif
+
+#if !AVR_WDG_USE_WDT
+#error "WDT driver activated but no WDT peripheral assigned"
+#endif
+
+/*==========================================================================*/
+/* Driver data structures and types.                                        */
+/*==========================================================================*/
+
+/**
+ * @brief   Type of a structure representing an WDG driver.
+ */
+typedef struct WDGDriver WDGDriver;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    It could be empty on some architectures.
+ */
+typedef struct {
+  /**
+   * @brief   Configuration of the WDT driver mode.
+   */
+  bool        mode;
+  /**
+   * @brief   Configuration of the WDT driver Nomal timeout period.
+   */
+  WDT_PER_t   ntp;
+  /**
+   * @brief   Configuration of the WDT driver Closed timeout period.
+   */
+  WDT_WPER_t  ctp;
+} WDGConfig;
+
+/**
+ * @brief   Structure representing an WDG driver.
+ */
+struct WDGDriver {
+  /**
+   * @brief   Driver state.
+   */
+  wdgstate_t                state;
+  /**
+   * @brief   Current configuration data.
+   */
+  const WDGConfig           *config;
+  /* End of the mandatory fields. */
+  /**
+   * @brief   Pointer to the WDG*T registers block.
+   */
+  WDT_t                     *wdg;
+};
+
+/*==========================================================================*/
+/* Driver macros.                                                           */
+/*==========================================================================*/
+
+/*==========================================================================*/
+/* External declarations.                                                   */
+/*==========================================================================*/
+
+#if (AVR_WDG_USE_WDT == TRUE) && !defined(__DOXYGEN__)
+extern WDGDriver WDTD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void wdg_lld_init(void);
+  void wdg_lld_start(WDGDriver *wdgp);
+  void wdg_lld_stop(WDGDriver *wdgp);
+  void wdg_lld_reset(WDGDriver *wdgp);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_WDG == TRUE */
+
+#endif /* HAL_WDG_LLD_H */
+
+/** @} */