plic.h

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// Copyright (C) 2013-2026 Efinix Inc. All rights reserved.
// Full license header bsp/efinix/EfxSapphireSocRV64/include/LICENSE.MD
 
#ifndef PLIC_H
#define PLIC_H

 
#include "type.h"
#include "soc.h"
#include "riscv.h"
 
#ifdef __cplusplus
extern "C" {
#endif

 
/* ========================================================================== */
/* SUB-GROUP : DATA STRUCTS                                                     */
/* ========================================================================== */


        typedef struct {
            volatile u32 PRIORITY[1024];  
        } plic_priority_block_t;

        typedef struct {
            volatile u32 PENDING[32]; 
        } plic_pending_block_t;

        typedef struct {
            volatile u32 ENABLE[32];  
        } plic_enable_block_t;

        typedef struct {
            volatile u32 THRESHOLD;     
            volatile u32 CLAIM;         
            u32         RESERVED[1022]; 
        } plic_context_block_t;

        typedef struct {
            plic_priority_block_t   regs_priority;                  
            plic_pending_block_t    regs_pending;                   
            u32                     reserved0[0x1000U/4U-0x20U];    
            plic_enable_block_t     regs_enable[8U];                
            u32                     reserved1[(0x00200000 - 0x00002400)/4U]; 
            plic_context_block_t    regs_context[8U]; 
        } plic_hwreg_t;

        typedef struct {
            u32 target;         
            u32 gateway;        
            u32 priority;       
            u32 enable;         
            u32 threshold;      
        }plic_instance_t;
 // End of PLIC_Types group
 
/* ========================================================================== */
/* SUB-GROUP: FUNCTIONS                                                     */
/* ========================================================================== */

    void plic_applyConfig(plic_instance_t *inst);
    u32 plic_claimExtIRQ_m();
    void plic_releaseExtIRQ_m(u32 gateway);

        u32 plic_get_threshold(plic_instance_t *inst);
        u32 plic_get_priority(plic_instance_t *inst);   


        void plic_set_priority(plic_instance_t *inst);
        void plic_set_enable(plic_instance_t *inst);
        void plic_set_threshold(plic_instance_t *inst);

 // End of PLIC_Funcs group
 
#ifdef __cplusplus
}
#endif
 // End of MAIN PLIC Group
 
#endif // PLIC_H