1 files changed, 149 insertions, 0 deletions
diff --git a/os/hal/templates/ext_lld.h b/os/hal/templates/ext_lld.h
new file mode 100644
index 000000000..ca020a7a6
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+++ b/os/hal/templates/ext_lld.h
@@ -0,0 +1,149 @@
+/*
+    ChibiOS/RT - Copyright (C) 2006-2013 Giovanni Di Sirio
+
+    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    templates/ext_lld.h
+ * @brief   EXT Driver subsystem low level driver header template.
+ *
+ * @addtogroup EXT
+ * @{
+ */
+
+#ifndef _EXT_LLD_H_
+#define _EXT_LLD_H_
+
+#if HAL_USE_EXT || defined(__DOXYGEN__)
+
+/*===========================================================================*/
+/* Driver constants.                                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   Available number of EXT channels.
+ */
+#define EXT_MAX_CHANNELS    20
+
+/*===========================================================================*/
+/* Driver pre-compile time settings.                                         */
+/*===========================================================================*/
+
+/**
+ * @name    Configuration options
+ * @{
+ */
+/**
+ * @brief   EXT driver enable switch.
+ * @details If set to @p TRUE the support for EXT1 is included.
+ */
+#if !defined(PLATFORM_EXT_USE_EXT1) || defined(__DOXYGEN__)
+#define PLATFORM_EXT_USE_EXT1               FALSE
+#endif
+/** @} */
+
+/*===========================================================================*/
+/* Derived constants and error checks.                                       */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* Driver data structures and types.                                         */
+/*===========================================================================*/
+
+/**
+ * @brief   EXT channel identifier.
+ */
+typedef uint32_t expchannel_t;
+
+/**
+ * @brief   Type of an EXT generic notification callback.
+ *
+ * @param[in] extp      pointer to the @p EXPDriver object triggering the
+ *                      callback
+ */
+typedef void (*extcallback_t)(EXTDriver *extp, expchannel_t channel);
+
+/**
+ * @brief   Channel configuration structure.
+ */
+typedef struct {
+  /**
+   * @brief Channel mode.
+   */
+  uint32_t              mode;
+  /**
+   * @brief Channel callback.
+   * @details  In the STM32 implementation a @p NULL callback pointer is
+   *           valid and configures the channel as an event sources instead
+   *           of an interrupt source.
+   */
+  extcallback_t         cb;
+} EXTChannelConfig;
+
+/**
+ * @brief   Driver configuration structure.
+ * @note    It could be empty on some architectures.
+ */
+typedef struct {
+  /**
+   * @brief Channel configurations.
+   */
+  EXTChannelConfig      channels[EXT_MAX_CHANNELS];
+  /* End of the mandatory fields.*/
+} EXTConfig;
+
+/**
+ * @brief   Structure representing an EXT driver.
+ */
+struct EXTDriver {
+  /**
+   * @brief Driver state.
+   */
+  extstate_t                state;
+  /**
+   * @brief Current configuration data.
+   */
+  const EXTConfig           *config;
+  /* End of the mandatory fields.*/
+};
+
+/*===========================================================================*/
+/* Driver macros.                                                            */
+/*===========================================================================*/
+
+/*===========================================================================*/
+/* External declarations.                                                    */
+/*===========================================================================*/
+
+#if PLATFORM_EXT_USE_EXT1 && !defined(__DOXYGEN__)
+extern EXTDriver EXTD1;
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+  void ext_lld_init(void);
+  void ext_lld_start(EXTDriver *extp);
+  void ext_lld_stop(EXTDriver *extp);
+  void ext_lld_channel_enable(EXTDriver *extp, expchannel_t channel);
+  void ext_lld_channel_disable(EXTDriver *extp, expchannel_t channel);
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* HAL_USE_EXT */
+
+#endif /* _EXT_LLD_H_ */
+
+/** @} */