esp-hal 1.2.0

Bare-metal HAL for Espressif devices
Documentation 
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use crate::{
    clock::ll::{ClockTree, SpiFunctionClockConfig, SpiInstance},
    peripherals::PCR,
};

impl SpiInstance {
    // SPI_FUNCTION_CLOCK

    pub(crate) fn enable_function_clock_impl(self, _clocks: &mut ClockTree, en: bool) {
        match self {
            SpiInstance::Spi2 => PCR::regs()
                .spi2_clkm_conf()
                .modify(|_, w| w.spi2_clkm_en().bit(en)),
        };
    }

    pub(crate) fn configure_function_clock_impl(
        self,
        _clocks: &mut ClockTree,
        _old_config: Option<SpiFunctionClockConfig>,
        new_config: SpiFunctionClockConfig,
    ) {
        match self {
            SpiInstance::Spi2 => PCR::regs().spi2_clkm_conf().modify(|_, w| unsafe {
                w.spi2_clkm_sel().bits(match new_config {
                    SpiFunctionClockConfig::Xtal => 0,
                    #[cfg(esp32c6)]
                    SpiFunctionClockConfig::PllF80m => 1,
                    #[cfg(esp32h2)]
                    SpiFunctionClockConfig::PllF48m => 1,
                    #[cfg(any(esp32c5, esp32c61))]
                    SpiFunctionClockConfig::PllF160m => 1,
                    SpiFunctionClockConfig::RcFast => 2,
                    #[cfg(esp32c5)]
                    SpiFunctionClockConfig::PllF120m => 3,
                })
            }),
        };
    }
}