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// See LICENSE for license details.
#ifndef PLIC_H
#define PLIC_H
#include <stdlib.h>
#include <stddef.h>
#include <stdint.h>
#include <unistd.h>
#include "encoding.h"
// 32 bits per source
#define PLIC_PRIORITY_OFFSET 0x0000UL
#define PLIC_PRIORITY_SHIFT_PER_SOURCE 2
// 1 bit per source (1 address)
#define PLIC_PENDING_OFFSET 0x1000UL
#define PLIC_PENDING_SHIFT_PER_SOURCE 0
//0x80 per target
#define PLIC_ENABLE_OFFSET 0x2000UL
#define PLIC_ENABLE_SHIFT_PER_TARGET 7
#define PLIC_THRESHOLD_OFFSET 0x200000UL
#define PLIC_CLAIM_OFFSET 0x200004UL
#define PLIC_THRESHOLD_SHIFT_PER_TARGET 12
#define PLIC_CLAIM_SHIFT_PER_TARGET 12
#define PLIC_MAX_SOURCE 1023
#define PLIC_SOURCE_MASK 0x3FF
#define PLIC_MAX_TARGET 15871
#define PLIC_TARGET_MASK 0x3FFF
typedef struct __plic_instance_t
{
uintptr_t base_addr;
uint32_t num_sources;
uint32_t num_priorities;
} plic_instance_t;
typedef uint32_t plic_source;
typedef uint32_t plic_priority;
typedef uint32_t plic_threshold;
void PLIC_init (
plic_instance_t * this_plic,
uintptr_t base_addr,
uint32_t num_sources,
uint32_t num_priorities
);
void PLIC_enable_interrupt (plic_instance_t * this_plic, plic_source source);
void PLIC_disable_interrupt (plic_instance_t * this_plic, plic_source source);
void PLIC_set_priority (plic_instance_t * this_plic, plic_source source, plic_priority priority);
plic_source PLIC_claim_interrupt(plic_instance_t * this_plic);
void PLIC_complete_interrupt(plic_instance_t * this_plic, plic_source source);
void PLIC_set_threshold(plic_instance_t * this_plic, plic_threshold threshold);
#endif
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