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ds323x-rs
mirror of https://github.com/eldruin/ds323x-rs
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Add function to set the complete datetime at once

pull/4/head
Diego Barrios Romero 2018-10-28 19:36:25 +01:00
parent 12dca9f499
commit 8459963f45
2 changed files with 49 additions and 4 deletions
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33
src/ds323x/datetime.rs
View File

@ -195,6 +195,29 @@ where
}
}
/// Set the date and time.
///
/// Will return an `Error::InvalidInputData` if any of the parameters is out of range.
pub fn set_datetime(&mut self, datetime: &DateTime) -> Result<(), Error<E>> {
if datetime.year < 2000 || datetime.year > 2100 ||
datetime.month < 1 || datetime.month > 12 ||
datetime.day < 1 || datetime.day > 31 ||
datetime.weekday < 1 || datetime.weekday > 7 ||
datetime.minute > 59 ||
datetime.second > 59 {
return Err(Error::InvalidInputData);
}
let (month, year) = month_year_to_registers(datetime.month, datetime.year);
let mut payload = [Register::SECONDS,
decimal_to_packed_bcd(datetime.second),
decimal_to_packed_bcd(datetime.minute),
self.get_hours_register_value(&datetime.hour)?,
decimal_to_packed_bcd(datetime.weekday),
decimal_to_packed_bcd(datetime.day),
month, year];
self.iface.write_data(&mut payload)
}
fn write_register_decimal(&mut self, register: u8, decimal_number: u8) -> Result<(), Error<E>> {
self.iface.write_register(register, decimal_to_packed_bcd(decimal_number))
}
@ -223,6 +246,16 @@ fn year_from_registers(month: u8, year: u8) -> u16 {
}
}
fn month_year_to_registers(month: u8, year: u16) -> (u8, u8) {
if year > 2099 {
let month = BitFlags::CENTURY | decimal_to_packed_bcd(month);
(month, decimal_to_packed_bcd((year - 2100) as u8))
}
else {
(decimal_to_packed_bcd(month), decimal_to_packed_bcd((year - 2000) as u8))
}
}
fn is_24h_format(hours_data: u8) -> bool {
hours_data & BitFlags::H24_H12 == 0
}

18
tests/ds323x.rs
View File

@ -26,10 +26,10 @@ macro_rules! get_param_test {
}
macro_rules! get_param_read_array_test {
($method:ident, $value:expr, $register1:ident, [ $( $bin:expr ),+ ], [ $( $bin2:expr ),+ ]) => {
($method:ident, $value:expr, $register1:ident, [ $( $read_bin:expr ),+ ], [ $( $read_bin2:expr ),+ ]) => {
_get_param_test!($method, $value,
[ I2cTrans::write_read(DEV_ADDR, vec![Register::$register1], vec![$( $bin ),*]) ],
[ SpiTrans::transfer(vec![Register::$register1, $( $bin2 ),*], vec![Register::$register1, $( $bin ),*]) ]);
[ I2cTrans::write_read(DEV_ADDR, vec![Register::$register1], vec![$( $read_bin ),*]) ],
[ SpiTrans::transfer(vec![Register::$register1, $( $read_bin2 ),*], vec![Register::$register1, $( $read_bin ),*]) ]);
};
}
@ -49,6 +49,14 @@ macro_rules! set_param_test {
};
}
macro_rules! set_param_write_array_test {
($method:ident, $value:expr, $register:ident, [ $( $exp_bin:expr ),+ ] ) => {
_set_param_test!($method, $value,
[ I2cTrans::write(DEV_ADDR, vec![Register::$register, $( $exp_bin ),*]) ],
[ SpiTrans::write(vec![Register::$register + 0x80, $( $exp_bin ),*]) ]);
};
}
macro_rules! read_set_param_write_two_test {
($method:ident, $value:expr, $register:ident, $binary_value1_read:expr, $bin1:expr, $bin2:expr) => {
_set_param_test!($method, $value,
@ -178,4 +186,8 @@ mod datetime {
[0b0101_1000, 0b0101_1001, 0b0010_0011, 0b0000_0010,
0b0001_0011, 0b0000_1000, 0b0001_1000],
[0, 0, 0, 0, 0, 0, 0]);
set_param_write_array_test!(set_datetime, &DT, SECONDS,
[0b0101_1000, 0b0101_1001, 0b0010_0011, 0b0000_0010,
0b0001_0011, 0b0000_1000, 0b0001_1000]);
}