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// arch/attiny1616.h: attiny1616 support header
// Copyright (C) 2023 Selene ToyKeeper
// SPDX-License-Identifier: GPL-3.0-or-later
#pragma once
// FIXME: remove this
#define AVRXMEGA3
////////// clock speed / delay stuff //////////
#define F_CPU 10000000UL
#define BOGOMIPS (F_CPU/4700)
#define DELAY_ZERO_TIME 1020
///// clock dividers
// this should work, but needs further validation
inline void clock_prescale_set(uint8_t n);
typedef enum
{
// Actual clock is 20 MHz, but assume that 10 MHz is the top speed and work from there
// TODO: measure PWM speed and power use at 1.25/2.5/5/10 MHz, to determine which speeds are optimal
clock_div_1 = (CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm), // 10 MHz
clock_div_2 = (CLKCTRL_PDIV_4X_gc | CLKCTRL_PEN_bm), // 5 MHz
clock_div_4 = (CLKCTRL_PDIV_8X_gc | CLKCTRL_PEN_bm), // 2.5 MHz
clock_div_8 = (CLKCTRL_PDIV_16X_gc | CLKCTRL_PEN_bm), // 1.25 MHz
clock_div_16 = (CLKCTRL_PDIV_32X_gc | CLKCTRL_PEN_bm), // 625 kHz
clock_div_32 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz, max without changing to the 32 kHz ULP
clock_div_64 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz
clock_div_128 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm), // 312 kHz
clock_div_256 = (CLKCTRL_PDIV_64X_gc | CLKCTRL_PEN_bm) // 312 kHz
} clock_div_t;
////////// 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();
inline void mcu_adc_on();
inline void mcu_adc_off();
#define ADC_vect ADC0_RESRDY_vect
inline void mcu_adc_vect_clear();
// 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();
inline uint8_t mcu_adc_lsb();
////////// WDT //////////
inline void mcu_wdt_active();
inline void mcu_wdt_standby();
inline void mcu_wdt_stop();
// *** Note for the AVRXMEGA3 (1-Series, eg 816 and 817), the WDT
// is not used for time-based interrupts. A new peripheral, the
// Periodic Interrupt Timer ("PIT") is used for this purpose.
#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 PINA
//#define SWITCH_VECT PCINT0_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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