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// arch/avr32dd20.h: avr32dd20 support header
// Copyright (C) 2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
////////// clock speed / delay stuff //////////
#define F_CPU 12000000UL
#define BOGOMIPS (F_CPU/3800)
#define DELAY_ZERO_TIME 1020
inline void mcu_clock_speed();
///// clock dividers
// this should work, but needs further validation
inline void clock_prescale_set(uint8_t n);
// TODO: allow hwdef to define a base clock speed,
// and adjust these values accordingly
typedef enum
{
// Actual clock is 12 MHz
clock_div_1 = (0), // 12 MHz
clock_div_2 = (CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm), // 6 MHz
clock_div_4 = (CLKCTRL_PDIV_4X_gc | CLKCTRL_PEN_bm), // 3 MHz
clock_div_8 = (CLKCTRL_PDIV_8X_gc | CLKCTRL_PEN_bm), // 1.5 MHz
clock_div_16 = (CLKCTRL_PDIV_16X_gc | CLKCTRL_PEN_bm), // 0.75 MHz
clock_div_32 = (CLKCTRL_PDIV_32X_gc | CLKCTRL_PEN_bm), // 375 kHz
clock_div_64 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 187.5 kHz
} clock_div_t;
////////// DAC controls //////////
// main LED outputs
#define DAC_LVL DAC0_DATA // 0 to 1023, for 0V to Vref
#define DAC_VREF VREF_DAC0REF // 1.024V, 2.048V, 4.096V, or 2.5V
// Vref values (suitable for DAC and ADC0)
#define V10 VREF_REFSEL_1V024_gc
#define V20 VREF_REFSEL_2V048_gc
#define V25 VREF_REFSEL_2V500_gc
#define V40 VREF_REFSEL_4V096_gc
////////// ADC voltage / temperature //////////
#define hwdef_set_admux_therm mcu_set_admux_therm
inline void mcu_set_admux_therm();
#define hwdef_set_admux_voltage mcu_set_admux_voltage
inline void mcu_set_admux_voltage();
inline void mcu_adc_sleep_mode();
inline void mcu_adc_start_measurement();
//#define mcu_adc_on hwdef_set_admux_voltage
//void mcu_adc_on();
inline void mcu_adc_off();
#define ADC_vect ADC0_RESRDY_vect
inline void mcu_adc_vect_clear();
// both readings are left-aligned
inline uint16_t mcu_adc_result();
// read ADC differently for temperature and voltage
//#define MCU_ADC_RESULT_PER_TYPE
//inline uint16_t mcu_adc_result_temp();
//inline uint16_t mcu_adc_result_volts();
// return Volts * 40, range 0 to 6.375V
#define voltage_raw2cooked mcu_vdd_raw2cooked
inline uint8_t mcu_vdd_raw2cooked(uint16_t measurement);
// return (temp in Kelvin << 6)
#define temp_raw2cooked mcu_temp_raw2cooked
inline uint16_t mcu_temp_raw2cooked(uint16_t measurement);
inline uint8_t mcu_adc_lsb();
////////// WDT //////////
inline void mcu_wdt_active();
inline void mcu_wdt_standby();
inline void mcu_wdt_stop();
#define WDT_vect RTC_PIT_vect
inline void mcu_wdt_vect_clear();
////////// PCINT - pin change interrupt (e-switch) //////////
// set these in hwdef
//#define SWITCH_PORT VPORTD.IN
//#define SWITCH_VECT PORTD_PORT_vect
inline void mcu_switch_vect_clear();
inline void mcu_pcint_on();
inline void mcu_pcint_off();
////////// misc //////////
void reboot();
inline void prevent_reboot_loop();
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