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Merge all of the crc_v2 configurations into a single modify call

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This commit is contained in:
Joshua Salzedo 2021-09-26 18:46:19 -07:00
parent 8fac444c4e
commit f9ff5336d4
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GPG Key ID: C3D0EB484493B731
1 changed files with 38 additions and 42 deletions
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80
embassy-stm32/src/crc/v2.rs
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@ -55,59 +55,55 @@ impl Crc {
CRC::reset();
let mut instance = Self {
_peripheral: peripheral,
_config: config
_config: config,
};
unimplemented!();
// instance.init();
// instance
}
// Configure device settings
fn configure_revout(&mut self) {
unsafe {
PAC_CRC.cr().modify(|w| {w.set_rev_out(
match self._config.reverse_out {
true => {vals::RevOut::REVERSED}
false => {vals::RevOut::NORMAL}
}
)})
}
}
fn configure_revin(&mut self) {
unsafe {
PAC_CRC.cr().modify(|w| {w.set_rev_in(
match self._config.reverse_in {
CrcInputReverseConfig::None => {vals::RevIn::NORMAL}
CrcInputReverseConfig::Byte => {vals::RevIn::BYTE}
CrcInputReverseConfig::Halfword => {vals::RevIn::HALFWORD}
CrcInputReverseConfig::Word => {vals::RevIn::WORD}
}
)})
}
}
fn configure_polysize(&mut self) {
unsafe {
PAC_CRC.cr().modify(|w| {w.set_polysize(
match self._config.poly_size {
PolySize::Width7 => {vals::Polysize::POLYSIZE7}
PolySize::Width8 => {vals::Polysize::POLYSIZE8}
PolySize::Width16 => {vals::Polysize::POLYSIZE16}
PolySize::Width32 => {vals::Polysize::POLYSIZE32}
}
)})
}
}
pub fn reset(&mut self) {
unsafe { PAC_CRC.cr().modify(|w| w.set_reset(true)); }
}
fn set_crc_init(&mut self, value: u32) {
unsafe {
PAC_CRC.init().write_value(value)
}
}
fn reconfigure(&mut self) {
unsafe {
// Init CRC value
PAC_CRC.init().write_value(self._config.crc_init_value);
PAC_CRC.cr().modify(|w| {
// configure reverse output
w.set_rev_out(
match self._config.reverse_out {
true => { vals::RevOut::REVERSED }
false => { vals::RevOut::NORMAL }
}
);
// configure reverse input
w.set_rev_in(
match self._config.reverse_in {
CrcInputReverseConfig::None => { vals::RevIn::NORMAL }
CrcInputReverseConfig::Byte => { vals::RevIn::BYTE }
CrcInputReverseConfig::Halfword => { vals::RevIn::HALFWORD }
CrcInputReverseConfig::Word => { vals::RevIn::WORD }
}
);
// configure the polynomial.
w.set_polysize(
match self._config.poly_size {
PolySize::Width7 => { vals::Polysize::POLYSIZE7 }
PolySize::Width8 => { vals::Polysize::POLYSIZE8 }
PolySize::Width16 => { vals::Polysize::POLYSIZE16 }
PolySize::Width32 => { vals::Polysize::POLYSIZE32 }
}
)
})
}
self.reset();
}
}