hal: renesas: rz: Initial support for ICU of RZ/T2L

Initial support for ICU of RZ/T2L

Signed-off-by: Hieu Nguyen <[email protected]>
Signed-off-by: Nhut Nguyen <[email protected]>

Author: Hieu Nguyen

drivers/rz/fsp/inc/instances/rzt/r_icu.h

@@ -0,0 +1,78 @@
+/*
+* Copyright (c) 2020 - 2024 Renesas Electronics Corporation and/or its affiliates
+*
+* SPDX-License-Identifier: BSD-3-Clause
+*/
+
+/*******************************************************************************************************************//**
+ * @addtogroup ICU
+ * @{
+ **********************************************************************************************************************/
+
+#ifndef R_ICU_H
+#define R_ICU_H
+
+/***********************************************************************************************************************
+ * Includes
+ **********************************************************************************************************************/
+#include "bsp_api.h"
+#include "r_external_irq_api.h"
+
+/* Common macro for FSP header files. There is also a corresponding FSP_FOOTER macro at the end of this file. */
+FSP_HEADER
+
+/***********************************************************************************************************************
+ * Macro definitions
+ **********************************************************************************************************************/
+
+/*********************************************************************************************************************
+ * Typedef definitions
+ *********************************************************************************************************************/
+
+/** ICU private control block. DO NOT MODIFY.  Initialization occurs when R_ICU_ExternalIrqOpen is called. */
+typedef struct st_icu_instance_ctrl
+{
+    uint32_t  open;                                             ///< Used to determine if channel control block is in use
+    IRQn_Type irq;                                              ///< Interrupt number
+    uint8_t   channel;                                          ///< Channel
+    external_irq_callback_args_t * p_callback_memory;           // Pointer to optional callback argument memory
+    void (* p_callback)(external_irq_callback_args_t * p_args); // Pointer to callback that is called when an edge is detected on the external irq pin.
+
+    /** Placeholder for user data.  Passed to the user callback in ::external_irq_callback_args_t. */
+    void const * p_context;
+} icu_instance_ctrl_t;
+
+/**********************************************************************************************************************
+ * Exported global variables
+ **********************************************************************************************************************/
+
+/** @cond INC_HEADER_DEFS_SEC */
+/** Filled in Interface API structure for this Instance. */
+extern const external_irq_api_t g_external_irq_on_icu;
+
+/** @endcond */
+
+/***********************************************************************************************************************
+ * Public APIs
+ **********************************************************************************************************************/
+fsp_err_t R_ICU_ExternalIrqOpen(external_irq_ctrl_t * const p_ctrl, external_irq_cfg_t const * const p_cfg);
+
+fsp_err_t R_ICU_ExternalIrqEnable(external_irq_ctrl_t * const p_ctrl);
+
+fsp_err_t R_ICU_ExternalIrqDisable(external_irq_ctrl_t * const p_ctrl);
+
+fsp_err_t R_ICU_ExternalIrqCallbackSet(external_irq_ctrl_t * const          p_ctrl,
+                                       void (                             * p_callback)(external_irq_callback_args_t *),
+                                       void const * const                   p_context,
+                                       external_irq_callback_args_t * const p_callback_memory);
+
+fsp_err_t R_ICU_ExternalIrqClose(external_irq_ctrl_t * const p_ctrl);
+
+/*******************************************************************************************************************//**
+ * @} (end defgroup ICU)
+ **********************************************************************************************************************/
+
+/* Common macro for FSP header files. There is also a corresponding FSP_HEADER macro at the top of this file. */
+FSP_FOOTER
+
+#endif                                 // R_ICU_H