sdmmc-core 0.5.0

SD/MMC core data structures and algorithms
Documentation 
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use crate::lib_bitfield;
use crate::result::Result;

use super::{ExtCsd, ExtCsdIndex};

lib_bitfield! {
    /// Represents the `ERASE_GROUP_DEF` field of the [ExtCsd] register.
    EraseGroupDef: u8,
    mask: 0b1,
    default: 0,
    {
        /// Indicates whether to enable high-capacity erase unit size, erase timeout, and write protection.
        enable: 0;
    }
}

impl ExtCsd {
    /// Gets the `ERASE_GROUP_DEF` field of the [ExtCsd] register.
    pub const fn erase_group_def(&self) -> EraseGroupDef {
        EraseGroupDef::from_inner(self.0[ExtCsdIndex::EraseGroupDef.into_inner()])
    }

    /// Sets the `ERASE_GROUP_DEF` field of the [ExtCsd] register.
    pub fn set_erase_group_def(&mut self, val: EraseGroupDef) {
        self.0[ExtCsdIndex::EraseGroupDef.into_inner()] = val.into_inner();
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn test_erase_group_def() {
        let mut ext_csd = ExtCsd::new();

        assert_eq!(ext_csd.erase_group_def(), EraseGroupDef::new());

        (0..=u8::MAX)
            .map(EraseGroupDef::from_inner)
            .for_each(|erase| {
                ext_csd.set_erase_group_def(erase);
                assert_eq!(ext_csd.erase_group_def(), erase);
            });
    }
}