/*
 * Copyright (c) 2021-2022 Amlogic, Inc. All rights reserved.
 *
 * SPDX-License-Identifier: MIT
 */

#ifndef N200_FUNC_H
#define N200_FUNC_H

__BEGIN_DECLS

#include "n200_timer.h"
#include "register.h"
#ifdef CONFIG_N200_REVA
#include "interrupt_control_pic.h"
#else
#include "interrupt_control_eclic.h"
#endif
#include "gcc_compiler_attributes.h"

#define PMP_CFG_R_NO    (0<<0)
#define PMP_CFG_R_EN    (1<<0)

#define PMP_CFG_W_NO    (0<<1)
#define PMP_CFG_W_EN    (1<<1)

#define PMP_CFG_X_NO    (0<<2)
#define PMP_CFG_X_EN    (1<<2)

#define PMP_CFG_A_OFF   (0<<3)
#define PMP_CFG_A_NA4   (2<<3)
#define PMP_CFG_A_NAPOT (3<<3)

#define PMP_CFG_L_NO    (0<<7)
#define PMP_CFG_L_EN    (1<<7)

#define SIZE_1K		0x400
#define SIZE_2K		0x800
#define SIZE_4K		0x1000
#define SIZE_8K		0x2000
#define SIZE_16K	0x4000
#define SIZE_32K	0x8000
#define SIZE_64K        0x10000
#define PMP_SHIFT	2

extern uint32_t _text;
extern uint32_t _etext;

uintptr_t handle_nmi(void);
uintptr_t handle_trap(uintptr_t mcause, uintptr_t sp);
#ifdef CONFIG_N200_REVA
uint32_t handle_irq(uint32_t int_num);
#endif

uint32_t config_pmp(void);
#if !defined(CONFIG_N200_REVA) && defined(CONFIG_AOCPU_BUSRESPERR_DETECTION)
void config_eclic_busresperr_irq(void);
void vBusRespERRHandler(void);
#endif
void pmp_open_all_space(void);

void switch_m2u_mode(void);

uint32_t get_mtime_freq(void);

uint32_t mtime_lo(void);

uint32_t mtime_hi(void);

uint64_t get_mtime_value(void);

inline void mtime_start(void);

inline void mtime_stop(void);

uint64_t get_instret_value(void);

uint64_t get_cycle_value(void);

uint32_t get_cpu_freq(void);

uint32_t __noinline measure_cpu_freq(size_t n);

void wfe(void);

uint64_t get_timer_value(void);

uint32_t get_timer_freq(void);

void test_handler(void);

int EnableIrq(uint32_t ulIrq);

int DisableIrq(uint32_t ulIrq);

int SetIrqPriority(uint32_t ulIrq, uint32_t ulProi);

int ClearPendingIrq(uint32_t ulIrq);

int RegisterIrq(uint32_t int_num, uint32_t int_priority, function_ptr_t handler);

int UnRegisterIrq(uint32_t ulIrq);

unsigned long interrupt_status_get(void);

void interrupt_disable(void);

void interrupt_enable(void);

unsigned int xPortIsIsrContext(void);

#ifdef AOCPU_TIMER_DIV
void config_ao_timer_freq(uint32_t src, uint32_t freq);
#endif
__END_DECLS

#endif