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110 lines
2.6 KiB
110 lines
2.6 KiB
3 years ago
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// See LICENSE file for licence details
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#ifndef N200_FUNC_H
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#define N200_FUNC_H
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#include <stddef.h>
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#include "n200_timer.h"
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#include "n200_eclic.h"
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#define ECLIC_GROUP_LEVEL0_PRIO4 0
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#define ECLIC_GROUP_LEVEL1_PRIO3 1
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#define ECLIC_GROUP_LEVEL2_PRIO2 2
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#define ECLIC_GROUP_LEVEL3_PRIO1 3
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#define ECLIC_GROUP_LEVEL4_PRIO0 4
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void pmp_open_all_space();
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void switch_m2u_mode();
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uint32_t get_mtime_freq();
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uint32_t mtime_lo(void);
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uint32_t mtime_hi(void);
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uint64_t get_mtime_value();
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uint64_t get_instret_value();
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uint64_t get_cycle_value();
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uint32_t get_cpu_freq();
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uint32_t __attribute__((noinline)) measure_cpu_freq(size_t n);
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///////////////////////////////////////////////////////////////////
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/////// ECLIC relevant functions
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///////
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void eclic_init ( uint32_t num_irq );
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uint64_t get_timer_value();
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void eclic_enable_interrupt (uint32_t source);
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void eclic_disable_interrupt (uint32_t source);
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void eclic_set_pending(uint32_t source);
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void eclic_clear_pending(uint32_t source);
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void eclic_set_intctrl (uint32_t source, uint8_t intctrl);
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uint8_t eclic_get_intctrl (uint32_t source);
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void eclic_set_intattr (uint32_t source, uint8_t intattr);
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uint8_t eclic_get_intattr (uint32_t source);
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void eclic_set_cliccfg (uint8_t cliccfg);
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uint8_t eclic_get_cliccfg ();
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void eclic_set_mth (uint8_t mth);
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uint8_t eclic_get_mth();
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//sets nlbits
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void eclic_set_nlbits(uint8_t nlbits);
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//get nlbits
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uint8_t eclic_get_nlbits();
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void eclic_set_irq_lvl(uint32_t source, uint8_t lvl);
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uint8_t eclic_get_irq_lvl(uint32_t source);
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void eclic_set_irq_lvl_abs(uint32_t source, uint8_t lvl_abs);
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uint8_t eclic_get_irq_lvl_abs(uint32_t source);
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uint8_t eclic_set_irq_priority(uint32_t source, uint8_t priority);
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uint8_t eclic_get_irq_priority(uint32_t source);
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void eclic_mode_enable();
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void eclic_set_vmode(uint32_t source);
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void eclic_set_nonvmode(uint32_t source);
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void eclic_set_level_trig(uint32_t source);
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void eclic_set_posedge_trig(uint32_t source);
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void eclic_set_negedge_trig(uint32_t source);
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///** \brief Wait For Interrupt
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//
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// Wait For Interrupt is a hint instruction that suspends execution
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// until one of a number of events occurs.
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// */
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__attribute__( ( always_inline ) ) static inline void __WFI(void) {
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__asm volatile ("wfi");
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}
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//
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//
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/** \brief Wait For Event
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Wait For Event is a hint instruction that permits the processor to enter
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a low-power state until one of a number of events occurs.
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*/
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__attribute__( ( always_inline ) ) static inline void __WFE(void) {
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__asm volatile ("csrs 0x810, 0x1");
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__asm volatile ("wfi");
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__asm volatile ("csrc 0x810, 0x1");
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}
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#endif
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