Skip to content

Add an unsafe fn SCB::steal #169

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Closed
wants to merge 2 commits into from
Closed

Add an unsafe fn SCB::steal #169

Changes from all commits
Commits
Show all changes
2 commits
Select commit Hold shift + click to select a range
5da57f6
Add an unsafe fn `SCB::steal`
jonas-schievink Oct 1, 2019
d2962c8
Clarify safety constraints
jonas-schievink Oct 4, 2019
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
12 changes: 12 additions & 0 deletions src/peripheral/mod.rs
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -429,6 +429,18 @@ pub struct SCB {
unsafe impl Send for SCB {}

impl SCB {
/// Unsafely obtains an `SCB` instance from nothing.
///
/// # Safety
///
/// The caller has to ensure that all SCB access is synchronized across all
/// `SCB` instances to avoid race conditions.
pub unsafe fn steal() -> Self {
Self {
_marker: PhantomData,
}
}

/// Returns a pointer to the register block
pub fn ptr() -> *const scb::RegisterBlock {
0xE000_ED04 as *const _
Expand Down