1 /*
2 * Copyright (c) 2020 - 2024 Renesas Electronics Corporation and/or its affiliates
3 *
4 * SPDX-License-Identifier: BSD-3-Clause
5 */
6 
7 /*******************************************************************************************************************//**
8  * @addtogroup ICU
9  * @{
10  **********************************************************************************************************************/
11 
12 #ifndef R_ICU_H
13 #define R_ICU_H
14 
15 /***********************************************************************************************************************
16  * Includes
17  **********************************************************************************************************************/
18 #include "bsp_api.h"
19 #include "r_external_irq_api.h"
20 
21 /* Common macro for FSP header files. There is also a corresponding FSP_FOOTER macro at the end of this file. */
22 FSP_HEADER
23 
24 /***********************************************************************************************************************
25  * Macro definitions
26  **********************************************************************************************************************/
27 
28 /*********************************************************************************************************************
29  * Typedef definitions
30  *********************************************************************************************************************/
31 
32 /** ICU private control block. DO NOT MODIFY.  Initialization occurs when R_ICU_ExternalIrqOpen is called. */
33 typedef struct st_icu_instance_ctrl
34 {
35     uint32_t  open;                                             ///< Used to determine if channel control block is in use
36     IRQn_Type irq;                                              ///< Interrupt number
37     uint8_t   channel;                                          ///< Channel
38     external_irq_callback_args_t * p_callback_memory;           // Pointer to optional callback argument memory
39     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.
40 
41     /** Placeholder for user data.  Passed to the user callback in ::external_irq_callback_args_t. */
42     void const * p_context;
43 } icu_instance_ctrl_t;
44 
45 /**********************************************************************************************************************
46  * Exported global variables
47  **********************************************************************************************************************/
48 
49 /** @cond INC_HEADER_DEFS_SEC */
50 /** Filled in Interface API structure for this Instance. */
51 extern const external_irq_api_t g_external_irq_on_icu;
52 
53 /** @endcond */
54 
55 /***********************************************************************************************************************
56  * Public APIs
57  **********************************************************************************************************************/
58 fsp_err_t R_ICU_ExternalIrqOpen(external_irq_ctrl_t * const p_ctrl, external_irq_cfg_t const * const p_cfg);
59 
60 fsp_err_t R_ICU_ExternalIrqEnable(external_irq_ctrl_t * const p_ctrl);
61 
62 fsp_err_t R_ICU_ExternalIrqDisable(external_irq_ctrl_t * const p_ctrl);
63 
64 fsp_err_t R_ICU_ExternalIrqCallbackSet(external_irq_ctrl_t * const          p_ctrl,
65                                        void (                             * p_callback)(external_irq_callback_args_t *),
66                                        void const * const                   p_context,
67                                        external_irq_callback_args_t * const p_callback_memory);
68 
69 fsp_err_t R_ICU_ExternalIrqClose(external_irq_ctrl_t * const p_ctrl);
70 
71 /*******************************************************************************************************************//**
72  * @} (end defgroup ICU)
73  **********************************************************************************************************************/
74 
75 /* Common macro for FSP header files. There is also a corresponding FSP_HEADER macro at the top of this file. */
76 FSP_FOOTER
77 
78 #endif                                 // R_ICU_H
79