sbi-spec 0.0.9

Definitions and constants in the RISC-V Supervisor Binary Interface (RISC-V SBI)
Documentation 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29

use super::sbi_ret::SbiRegister;

/// Debug trigger mask structure for the `DBTR` extension ยง19.
#[repr(C)]
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub struct TriggerMask<T = usize> {
    trig_idx_base: T,
    trig_idx_mask: T,
}

impl<T: SbiRegister> TriggerMask<T> {
    /// Construct a [TriggerMask] from mask value and base counter index.
    ///
    /// The `trig_idx_base` specifies the starting trigger index, while the `trig_idx_mask` is a
    /// bitmask indicating which triggers, relative to the base, are to be operated.
    #[inline]
    pub const fn from_mask_base(trig_idx_mask: T, trig_idx_base: T) -> Self {
        Self {
            trig_idx_mask,
            trig_idx_base,
        }
    }

    /// Returns `mask` and `base` parameters from the [TriggerMask].
    #[inline]
    pub const fn into_inner(self) -> (T, T) {
        (self.trig_idx_mask, self.trig_idx_base)
    }
}