saymrwulf/xous-core
1
0
Fork 0
mirror of https://github.com/saymrwulf/xous-core.git synced 2026-11-13 07:48:30 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

add debug statements around i2c locking

Browse source
This commit is contained in:
bunnie 2023-12-24 23:51:24 +08:00
parent 5a0461cb01
commit b6306ac8f4
1 changed files with 2 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
services/llio/src/main.rs
View file

@ -124,6 +124,7 @@ fn i2c_thread(i2c_sid: xous::SID, power_csr_raw: u32, wfi_state: Arc::<AtomicBoo
i2c_mutex_acquired = true;
xous::return_scalar(msg.sender, 1).ok();
} else {
log::debug!("i2c mutex: blocking {:x?}", msg.sender);
blocking_callers.push(msg.sender);
}
},
@ -149,6 +150,7 @@ fn i2c_thread(i2c_sid: xous::SID, power_csr_raw: u32, wfi_state: Arc::<AtomicBoo
// also guaranteeing that the ack happens before we allow the next thread to proceed
if let Some(next) = maybe_next {
assert!(i2c_mutex_acquired == true, "logic bug in passing mutex acquisition to next thread");
log::debug!("i2c mutex: unblocking {:x?}", next);
xous::return_scalar(next, 1).ok(); // this unblocks the waiting thread, and immediately hands the quantum to that thread
}
}