xous-kernel/xous-riscv/src/register/mvendorid.rs

33 lines
744 B
Rust

//! mvendorid register
use core::num::NonZeroUsize;
/// mvendorid register
#[derive(Clone, Copy, Debug)]
pub struct Mvendorid {
bits: NonZeroUsize,
}
impl Mvendorid {
/// Returns the contents of the register as raw bits
pub fn bits(&self) -> usize {
self.bits.get()
}
/// Returns the JEDEC manufacturer ID
pub fn jedec_manufacturer(&self) -> usize {
self.bits() >> 7
}
}
read_csr!(0xF11, __read_mvendorid);
/// Reads the CSR
#[inline]
pub fn read() -> Option<Mvendorid> {
let r = unsafe{ _read() };
// When mvendorid is hardwired to zero it means that the mvendorid
// csr isn't implemented.
NonZeroUsize::new(r).map(|bits| Mvendorid { bits })
}