Ivan Grokhotkov
50 lines
1.1 KiB
C
50 lines
1.1 KiB
C
#pragma once
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#include "hw/hw.h"
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#include "hw/registerfields.h"
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#include "hw/sysbus.h"
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#include "hw/misc/esp32_reg.h"
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#define TYPE_ESP32_FRC_TIMER "timer.esp32.frc"
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#define ESP32_FRC_TIMER(obj) OBJECT_CHECK(Esp32FrcTimerState, (obj), TYPE_ESP32_FRC_TIMER)
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typedef struct Esp32FrcTimerState {
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/* private */
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SysBusDevice parent_obj;
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MemoryRegion iomem;
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qemu_irq irq;
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QEMUTimer alarm_timer;
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/* properties */
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uint32_t apb_freq;
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bool has_alarm;
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uint32_t count_mask;
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/* state */
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uint32_t count_base;
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uint64_t ns_base;
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bool level_int_status;
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/* registers */
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uint32_t load_reg;
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bool enable;
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bool autoload;
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uint32_t prescaler;
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bool level_int;
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uint32_t alarm_reg;
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} Esp32FrcTimerState;
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REG32(FRC_TIMER_LOAD, 0x00)
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REG32(FRC_TIMER_COUNT, 0x04)
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REG32(FRC_TIMER_CTRL, 0x08)
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FIELD(FRC_TIMER_CTRL, LEVEL_INT, 0, 1)
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FIELD(FRC_TIMER_CTRL, PRESCALER, 1, 3)
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FIELD(FRC_TIMER_CTRL, AUTOLOAD, 6, 1)
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FIELD(FRC_TIMER_CTRL, ENABLE, 7, 1)
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FIELD(FRC_TIMER_CTRL, STATUS, 8, 1)
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REG32(FRC_TIMER_INT_CLR, 0x0c)
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REG32(FRC_TIMER_ALARM, 0x10)
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#define ESP32_FRC_TIMER_STRIDE 0x20
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