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Commit 2a89253

Browse files
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BootServices::set_timer wrapper (#124)
1 parent 055cc9d commit 2a89253

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2 files changed

+43
-2
lines changed

2 files changed

+43
-2
lines changed

‎src/table/boot.rs

Lines changed: 29 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -48,7 +48,11 @@ pub struct BootServices {
4848
notify_ctx: *mut c_void,
4949
event: *mut Event,
5050
) -> Status,
51-
set_timer: usize,
51+
set_timer: unsafe extern "efiapi" fn(
52+
event: Event,
53+
ty: u32,
54+
trigger_time: u64
55+
) -> Status,
5256
wait_for_event: unsafe extern "efiapi" fn(
5357
number_of_events: usize,
5458
events: *mut Event,
@@ -346,6 +350,16 @@ impl BootServices {
346350
)
347351
}
348352

353+
/// Sets the trigger for `EventType::TIMER` event.
354+
pub fn set_timer(&self, event: Event, trigger_time: TimerTrigger) -> Result {
355+
let (ty, time) = match trigger_time {
356+
TimerTrigger::Cancel => (0, 0),
357+
TimerTrigger::Periodic(hundreds_ns) => (1, hundreds_ns),
358+
TimerTrigger::Relative(hundreds_ns) => (2, hundreds_ns),
359+
};
360+
unsafe { (self.set_timer)(event, ty, time) }.into()
361+
}
362+
349363
/// Query a handle for a certain protocol.
350364
///
351365
/// This function attempts to get the protocol implementation of a handle,
@@ -805,3 +819,17 @@ bitflags! {
805819

806820
/// Raw event notification function
807821
type EventNotifyFn = unsafe extern "efiapi" fn(event: Event, context: *mut c_void);
822+
823+
/// Timer events manipulation
824+
pub enum TimerTrigger {
825+
/// Cancel event's timer
826+
Cancel,
827+
/// The event is to be signaled periodically.
828+
/// Parameter is the period in 100ns units.
829+
/// Delay of 0 will be signalled on every timer tick.
830+
Periodic(u64),
831+
/// The event is to be signaled once in 100ns units.
832+
/// Parameter is the delay in 100ns units.
833+
/// Delay of 0 will be signalled on next timer tick.
834+
Relative(u64),
835+
}

‎uefi-test-runner/src/boot/misc.rs

Lines changed: 14 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,10 @@
11
use uefi::prelude::*;
2-
use uefi::table::boot::BootServices;
2+
use uefi::table::boot::{BootServices,EventType,Tpl,TimerTrigger};
33

44
pub fn test(bt: &BootServices) {
5+
info!("Testing timer...");
6+
test_timer(bt);
7+
info!("Testing watchdog...");
58
test_watchdog(bt);
69
}
710

@@ -10,3 +13,13 @@ fn test_watchdog(bt: &BootServices) {
1013
bt.set_watchdog_timer(0, 0x10000, None)
1114
.expect_success("Could not set watchdog timer");
1215
}
16+
17+
fn test_timer(bt: &BootServices) {
18+
let timer_event = unsafe { bt.create_event(EventType::TIMER, Tpl::APPLICATION, None) }
19+
.expect_success("Failed to create TIMER event");
20+
let mut events = [timer_event];
21+
bt.set_timer(timer_event, TimerTrigger::Relative(5_0/*00 ns */))
22+
.expect_success("Failed to set timer");
23+
bt.wait_for_event(&mut events)
24+
.expect_success("Wait for event failed");
25+
}

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