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- use field_offset::offset_of;
- use stm32l4xx_hal::{
- prelude::{_embedded_hal_blocking_i2c_Read, _embedded_hal_blocking_i2c_Write},
- };
- use tock_registers::{
- interfaces::{ReadWriteable, Readable},
- register_bitfields, register_structs,
- registers::InMemoryRegister,
- };
- register_bitfields![
- u8,
- T_SECOND [
- Value OFFSET(0) NUMBITS(7) [],
- ],
- T_MINUTE [
- Value OFFSET(0) NUMBITS(7) [],
- ],
- T_HOUR [
- Value OFFSET(0) NUMBITS(6) [],
- n24 OFFSET(6) NUMBITS(1) [],
- ],
- T_DAY [
- Value OFFSET(0) NUMBITS(3) [],
- ],
- T_DATE [
- Value OFFSET(0) NUMBITS(6) [],
- ],
- T_MONTH [
- Value OFFSET(0) NUMBITS(5) [],
- Century OFFSET(7) NUMBITS(1) [],
- ],
- T_YEAR [
- Value OFFSET(0) NUMBITS(8) [],
- ],
- A_SECOND [
- Value OFFSET(0) NUMBITS(7) [],
- M1 OFFSET(7) NUMBITS(1) [],
- ],
- A_MINUTE [
- Value OFFSET(0) NUMBITS(7) [],
- M2 OFFSET(7) NUMBITS(1) [],
- ],
- A_HOUR [
- Value OFFSET(0) NUMBITS(6) [],
- n24 OFFSET(6) NUMBITS(1) [],
- M3 OFFSET(7) NUMBITS(1) [],
- ],
- A_DAY_DATE [
- Value OFFSET(0) NUMBITS(6) [],
- nDT OFFSET(6) NUMBITS(1) [],
- M4 OFFSET(7) NUMBITS(1) [],
- ],
- CONTROL_1 [
- A1IE 0,
- A2IE 1,
- INTCN 2,
- RS1 3,
- RS2 4,
- CONV 5,
- BBSQW 6,
- nEOSC 7,
- ],
- CONTROL_2 [
- A1F 0,
- A2F 1,
- BSY 2,
- EN32KHZ 3,
- OSF 7,
- ],
- AGING_OFFSET [
- Value OFFSET(0) NUMBITS(7) [],
- Sign OFFSET(7) NUMBITS(1) [],
- ],
- TEMP_MSB [
- Value OFFSET(0) NUMBITS(7) [],
- Sign OFFSET(7) NUMBITS(1) [],
- ],
- TEMP_LSB [
- Value OFFSET(6) NUMBITS(2) [],
- ],
- ];
- register_structs! {
- Ds3231Registers {
- (0x00 => t_second: InMemoryRegister<u8, T_SECOND::Register>),
- (0x01 => t_minute: InMemoryRegister<u8, T_MINUTE::Register>),
- (0x02 => t_hour: InMemoryRegister<u8, T_HOUR::Register>),
- (0x03 => t_weekday: InMemoryRegister<u8, T_DAY::Register>),
- (0x04 => t_day: InMemoryRegister<u8, T_DATE::Register>),
- (0x05 => t_month: InMemoryRegister<u8, T_MONTH::Register>),
- (0x06 => t_year: InMemoryRegister<u8, T_YEAR::Register>),
- (0x07 => a1_second: InMemoryRegister<u8, A_SECOND::Register>),
- (0x08 => a1_minute: InMemoryRegister<u8, A_MINUTE::Register>),
- (0x09 => a1_hour: InMemoryRegister<u8, A_HOUR::Register>),
- (0x0A => a1_day_date: InMemoryRegister<u8, A_DAY_DATE::Register>),
- (0x0B => a2_minute: InMemoryRegister<u8, A_MINUTE::Register>),
- (0x0C => a2_hour: InMemoryRegister<u8, A_HOUR::Register>),
- (0x0D => a2_day_date: InMemoryRegister<u8, A_DAY_DATE::Register>),
- (0x0E => control_1: InMemoryRegister<u8, CONTROL_1::Register>),
- (0x0F => control_2: InMemoryRegister<u8, CONTROL_2::Register>),
- (0x10 => aging_offset: InMemoryRegister<u8, AGING_OFFSET::Register>),
- (0x11 => temp_msb: InMemoryRegister<u8, TEMP_MSB::Register>),
- (0x12 => temp_lsb: InMemoryRegister<u8, TEMP_LSB::Register>),
- (0x13 => @END),
- }
- }
- pub enum Weekday {
- SUNDAY = 0,
- MONDAY = 1,
- TUESDAY = 2,
- WEDNESDAY = 3,
- THURSDAY = 4,
- FRIDAY = 5,
- SATURDAY = 6,
- }
- impl Ds3231Registers {
- fn i2c_read_regs(&mut self, i2c: &mut impl _embedded_hal_blocking_i2c_Read) {}
- fn set_time(second: &u32, minute: &u32, hour: &u32) {}
- fn set_date(weekday: &Weekday, day: &u32, month: &u32, year: &u32, century: &u32) {}
- fn get_time(second: &mut u32, minute: &mut u32, hour: &mut u32) {}
- fn get_date(
- weekday: &mut Weekday,
- day: &mut u32,
- month: &mut u32,
- year: &mut u32,
- century: &mut u32,
- ) {
- }
- }
- pub fn in_dst(weekday: Weekday, day: u32, month: u32, hour_24: u32) -> bool {
- let prev_sunday: i32 = day as i32 - weekday as i32;
- match month {
- 0..=2 | 12.. => false,
- 4..=10 => true,
- 3 => {
- if prev_sunday < 8 {
- false
- } else if prev_sunday > 14 {
- true
- } else if prev_sunday == day as i32 {
- hour_24 >= 2
- } else {
- true
- }
- }
- 11 => {
- if prev_sunday <= 0 {
- true
- } else if day > 7 {
- false
- } else if prev_sunday == day as i32 {
- hour_24 < 2
- } else {
- false
- }
- }
- }
- }
- #[cfg(test)]
- mod test {
- use super::*;
- #[test]
- fn dst_test() {
- // 2020 - begins Mar 8th @ 2AM (Sunday), ends Nov 1st @ 2AM (Sunday)
- assert!(in_dst(Weekday::SUNDAY, 8, 3, 1) == false);
- assert!(in_dst(Weekday::SUNDAY, 8, 3, 2) == true);
- assert!(in_dst(Weekday::SUNDAY, 8, 3, 3) == true);
- assert!(in_dst(Weekday::SUNDAY, 1, 11, 1) == true);
- assert!(in_dst(Weekday::SUNDAY, 1, 11, 2) == false);
- assert!(in_dst(Weekday::SUNDAY, 1, 11, 3) == false);
- // 2021 - begins Mar 14th @ 2AM (Sunday), ends Nov 7th @ 2AM (Sunday)
- assert!(in_dst(Weekday::SUNDAY, 14, 3, 1) == false);
- assert!(in_dst(Weekday::SUNDAY, 14, 3, 2) == true);
- assert!(in_dst(Weekday::SUNDAY, 14, 3, 3) == true);
- assert!(in_dst(Weekday::SUNDAY, 7, 11, 1) == true);
- assert!(in_dst(Weekday::SUNDAY, 7, 11, 2) == false);
- assert!(in_dst(Weekday::SUNDAY, 7, 11, 3) == false);
- // 2022 - begins Mar 13th @ 2AM (Sunday), ends Nov 6th @ 2AM (Sunday)
- assert!(in_dst(Weekday::SUNDAY, 13, 3, 1) == false);
- assert!(in_dst(Weekday::SUNDAY, 13, 3, 2) == true);
- assert!(in_dst(Weekday::SUNDAY, 13, 3, 3) == true);
- assert!(in_dst(Weekday::SUNDAY, 6, 11, 1) == true);
- assert!(in_dst(Weekday::SUNDAY, 6, 11, 2) == false);
- assert!(in_dst(Weekday::SUNDAY, 6, 11, 3) == false);
- // 2023 - begins Mar 12th @ 2AM (Sunday), ends Nov 5th @ 2AM (Sunday)
- assert!(in_dst(Weekday::SUNDAY, 12, 3, 1) == false);
- assert!(in_dst(Weekday::SUNDAY, 12, 3, 2) == true);
- assert!(in_dst(Weekday::SUNDAY, 12, 3, 3) == true);
- assert!(in_dst(Weekday::SUNDAY, 5, 11, 1) == true);
- assert!(in_dst(Weekday::SUNDAY, 5, 11, 2) == false);
- assert!(in_dst(Weekday::SUNDAY, 5, 11, 3) == false);
- // Sanity check other dates in 2021
- assert!(in_dst(Weekday::FRIDAY, 1, 1, 0) == false);
- assert!(in_dst(Weekday::MONDAY, 1, 2, 0) == false);
- assert!(in_dst(Weekday::MONDAY, 1, 3, 0) == false);
- assert!(in_dst(Weekday::THURSDAY, 1, 4, 0) == true);
- assert!(in_dst(Weekday::SATURDAY, 1, 5, 0) == true);
- assert!(in_dst(Weekday::TUESDAY, 1, 6, 0) == true);
- assert!(in_dst(Weekday::THURSDAY, 1, 7, 0) == true);
- assert!(in_dst(Weekday::SUNDAY, 1, 8, 0) == true);
- assert!(in_dst(Weekday::WEDNESDAY, 1, 9, 0) == true);
- assert!(in_dst(Weekday::FRIDAY, 1, 10, 0) == true);
- assert!(in_dst(Weekday::MONDAY, 1, 11, 0) == true);
- assert!(in_dst(Weekday::WEDNESDAY, 1, 12, 0) == false);
- }
- }
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