stm32: update stm32-metapac.
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@ -85,95 +85,79 @@ impl<'d> Crc<'d> {
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}
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pub fn reset(&mut self) {
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unsafe {
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PAC_CRC.cr().modify(|w| w.set_reset(true));
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}
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PAC_CRC.cr().modify(|w| w.set_reset(true));
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}
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/// Reconfigures the CRC peripheral. Doesn't reset.
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fn reconfigure(&mut self) {
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unsafe {
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// Init CRC value
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PAC_CRC.init().write_value(self._config.crc_init_value);
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#[cfg(crc_v3)]
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PAC_CRC.pol().write_value(self._config.crc_poly);
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// Init CRC value
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PAC_CRC.init().write_value(self._config.crc_init_value);
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#[cfg(crc_v3)]
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PAC_CRC.pol().write_value(self._config.crc_poly);
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// configure CR components
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// (reverse I/O, polysize, poly)
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PAC_CRC.cr().write(|w| {
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// configure reverse output
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w.set_rev_out(match self._config.reverse_out {
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true => vals::RevOut::REVERSED,
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false => vals::RevOut::NORMAL,
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});
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// configure reverse input
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w.set_rev_in(match self._config.reverse_in {
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InputReverseConfig::None => vals::RevIn::NORMAL,
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InputReverseConfig::Byte => vals::RevIn::BYTE,
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InputReverseConfig::Halfword => vals::RevIn::HALFWORD,
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InputReverseConfig::Word => vals::RevIn::WORD,
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});
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// configure the polynomial.
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#[cfg(crc_v3)]
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w.set_polysize(match self._config.poly_size {
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PolySize::Width7 => vals::Polysize::POLYSIZE7,
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PolySize::Width8 => vals::Polysize::POLYSIZE8,
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PolySize::Width16 => vals::Polysize::POLYSIZE16,
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PolySize::Width32 => vals::Polysize::POLYSIZE32,
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});
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})
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}
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// configure CR components
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// (reverse I/O, polysize, poly)
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PAC_CRC.cr().write(|w| {
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// configure reverse output
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w.set_rev_out(match self._config.reverse_out {
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true => vals::RevOut::REVERSED,
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false => vals::RevOut::NORMAL,
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});
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// configure reverse input
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w.set_rev_in(match self._config.reverse_in {
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InputReverseConfig::None => vals::RevIn::NORMAL,
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InputReverseConfig::Byte => vals::RevIn::BYTE,
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InputReverseConfig::Halfword => vals::RevIn::HALFWORD,
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InputReverseConfig::Word => vals::RevIn::WORD,
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});
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// configure the polynomial.
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#[cfg(crc_v3)]
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w.set_polysize(match self._config.poly_size {
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PolySize::Width7 => vals::Polysize::POLYSIZE7,
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PolySize::Width8 => vals::Polysize::POLYSIZE8,
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PolySize::Width16 => vals::Polysize::POLYSIZE16,
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PolySize::Width32 => vals::Polysize::POLYSIZE32,
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});
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});
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self.reset();
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}
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/// Feeds a byte into the CRC peripheral. Returns the computed checksum.
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pub fn feed_byte(&mut self, byte: u8) -> u32 {
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unsafe {
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PAC_CRC.dr8().write_value(byte);
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PAC_CRC.dr().read()
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}
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PAC_CRC.dr8().write_value(byte);
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PAC_CRC.dr().read()
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}
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/// Feeds an slice of bytes into the CRC peripheral. Returns the computed checksum.
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pub fn feed_bytes(&mut self, bytes: &[u8]) -> u32 {
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for byte in bytes {
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unsafe {
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PAC_CRC.dr8().write_value(*byte);
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}
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PAC_CRC.dr8().write_value(*byte);
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}
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unsafe { PAC_CRC.dr().read() }
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PAC_CRC.dr().read()
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}
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/// Feeds a halfword into the CRC peripheral. Returns the computed checksum.
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pub fn feed_halfword(&mut self, halfword: u16) -> u32 {
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unsafe {
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PAC_CRC.dr16().write_value(halfword);
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PAC_CRC.dr().read()
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}
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PAC_CRC.dr16().write_value(halfword);
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PAC_CRC.dr().read()
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}
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/// Feeds an slice of halfwords into the CRC peripheral. Returns the computed checksum.
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pub fn feed_halfwords(&mut self, halfwords: &[u16]) -> u32 {
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for halfword in halfwords {
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unsafe {
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PAC_CRC.dr16().write_value(*halfword);
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}
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PAC_CRC.dr16().write_value(*halfword);
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}
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unsafe { PAC_CRC.dr().read() }
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PAC_CRC.dr().read()
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}
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/// Feeds a words into the CRC peripheral. Returns the computed checksum.
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pub fn feed_word(&mut self, word: u32) -> u32 {
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unsafe {
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PAC_CRC.dr().write_value(word as u32);
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PAC_CRC.dr().read()
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}
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PAC_CRC.dr().write_value(word as u32);
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PAC_CRC.dr().read()
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}
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/// Feeds an slice of words into the CRC peripheral. Returns the computed checksum.
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pub fn feed_words(&mut self, words: &[u32]) -> u32 {
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for word in words {
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unsafe {
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PAC_CRC.dr().write_value(*word as u32);
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}
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PAC_CRC.dr().write_value(*word as u32);
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}
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unsafe { PAC_CRC.dr().read() }
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PAC_CRC.dr().read()
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}
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}
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