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stm32/rcc: refactor h7 rm0455,rm0468 and rm0468 power management

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Badr Bouslikhin 2023-12-02 14:47:36 +01:00
parent 87c0f1525d
commit 22c39fd697
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1 changed files with 29 additions and 58 deletions
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87
embassy-stm32/src/rcc/h.rs
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@ -120,6 +120,7 @@ impl From<TimerPrescaler> for Timpre {
/// Power supply configuration
/// See RM0433 Rev 4 7.4
#[cfg(any(pwr_h7rm0399, pwr_h7rm0455, pwr_h7rm0468))]
#[derive(PartialEq)]
pub enum SupplyConfig {
/// Default power supply configuration.
/// V CORE Power Domains are supplied from the LDO according to VOS.
@ -143,31 +144,43 @@ pub enum SupplyConfig {
/// LDO power mode (Main, LP, Off) will follow system low-power modes.
/// SMPS step-down converter enabled according to SDLEVEL, and supplies the LDO.
/// SMPS step-down converter power mode (MR, LP, Off) will follow system low-power modes.
SMPSLDO,
SMPSLDO(SMPSSupplyVoltage),
/// Power supply configuration from SMPS supplying external circuits and potentially the LDO.
/// V CORE Power Domains are supplied from voltage regulator according to VOS
/// LDO power mode (Main, LP, Off) will follow system low-power modes.
/// SMPS step-down converter enabled according to SDLEVEL used to supply external circuits and may supply the LDO.
/// SMPS step-down converter forced ON in MR mode.
SMPSExternalLDO,
SMPSExternalLDO(SMPSSupplyVoltage),
/// Power supply configuration from SMPS supplying external circuits and bypassing the LDO.
/// V CORE supplied from external source
/// SMPS step-down converter enabled according to SDLEVEL used to supply external circuits and may supply the external source for V CORE .
/// SMPS step-down converter forced ON in MR mode.
SMPSExternalLDOBypass,
SMPSExternalLDOBypass(SMPSSupplyVoltage),
}
/// SMPS step-down converter voltage output level.
/// This is only used in certain power supply configurations:
/// SMPSLDO, SMPSExternalLDO, SMPSExternalLDOBypass.
#[cfg(any(pwr_h7rm0399, pwr_h7rm0455, pwr_h7rm0468))]
#[derive(PartialEq)]
pub enum SMPSSupplyVoltage {
V1_8,
V2_5,
}
#[cfg(any(pwr_h7rm0399, pwr_h7rm0455, pwr_h7rm0468))]
impl SMPSSupplyVoltage {
/// Convert SMPSSupplyVoltage to u8 representation.
fn to_u8(&self) -> u8 {
match self {
SMPSSupplyVoltage::V1_8 => 0b01,
SMPSSupplyVoltage::V2_5 => 0b10,
}
}
}
/// Configuration of the core clocks
#[non_exhaustive]
pub struct Config {
@ -198,7 +211,6 @@ pub struct Config {
#[cfg(any(pwr_h7rm0399, pwr_h7rm0455, pwr_h7rm0468))]
pub supply_config: SupplyConfig,
pub smps_supply_voltage: Option<SMPSSupplyVoltage>,
}
impl Default for Config {
@ -235,7 +247,6 @@ impl Default for Config {
#[cfg(any(pwr_h7rm0399, pwr_h7rm0455, pwr_h7rm0468))]
supply_config: SupplyConfig::Default,
smps_supply_voltage: None,
}
}
}
@ -280,61 +291,21 @@ pub(crate) unsafe fn init(config: Config) {
w.set_bypass(false);
});
}
SupplyConfig::SMPSLDO => {
SupplyConfig::SMPSLDO(ref smps_supply_voltage)
| SupplyConfig::SMPSExternalLDO(ref smps_supply_voltage)
| SupplyConfig::SMPSExternalLDOBypass(ref smps_supply_voltage) => {
PWR.cr3().modify(|w| {
match config.smps_supply_voltage {
Some(SMPSSupplyVoltage::V1_8) => {
PWR.cr3().modify(|w| w.set_sdlevel(0b01));
}
Some(SMPSSupplyVoltage::V2_5) => {
PWR.cr3().modify(|w| w.set_sdlevel(0b10));
}
None => {
panic!("Supply configuration SMPSLDO requires a supply voltage to be set.");
}
}
w.set_sdexthp(false);
w.set_sdlevel(smps_supply_voltage.to_u8());
w.set_sdexthp(matches!(
config.supply_config,
SupplyConfig::SMPSExternalLDO(_) | SupplyConfig::SMPSExternalLDOBypass(_)
));
w.set_sden(true);
w.set_ldoen(true);
w.set_bypass(false);
});
}
SupplyConfig::SMPSExternalLDO => {
PWR.cr3().modify(|w| {
match config.smps_supply_voltage {
Some(SMPSSupplyVoltage::V1_8) => {
PWR.cr3().modify(|w| w.set_sdlevel(0b01));
}
Some(SMPSSupplyVoltage::V2_5) => {
PWR.cr3().modify(|w| w.set_sdlevel(0b10));
}
None => {
panic!("Supply configuration SMPSExternalLDO requires a supply voltage to be set.");
}
}
w.set_sdexthp(true);
w.set_sden(true);
w.set_ldoen(true);
w.set_bypass(false);
});
}
SupplyConfig::SMPSExternalLDOBypass => {
PWR.cr3().modify(|w| {
match config.smps_supply_voltage {
Some(SMPSSupplyVoltage::V1_8) => {
PWR.cr3().modify(|w| w.set_sdlevel(0b01));
}
Some(SMPSSupplyVoltage::V2_5) => {
PWR.cr3().modify(|w| w.set_sdlevel(0b10));
}
None => {
panic!("Supply configuration SMPSExternalLDOBypass requires a supply voltage to be set.");
}
}
w.set_sdexthp(true);
w.set_sden(true);
w.set_ldoen(false);
w.set_bypass(true);
w.set_ldoen(matches!(
config.supply_config,
SupplyConfig::SMPSLDO(_) | SupplyConfig::SMPSExternalLDO(_)
));
w.set_bypass(matches!(config.supply_config, SupplyConfig::SMPSExternalLDOBypass(_)));
});
}
}