1 files changed, 71 insertions, 0 deletions
diff --git a/spec/dev/clock/xil-ttc/val/tick-catch-up.yml b/spec/dev/clock/xil-ttc/val/tick-catch-up.yml
new file mode 100644
index 00000000..d66f088b
--- /dev/null
+++ b/spec/dev/clock/xil-ttc/val/tick-catch-up.yml
@@ -0,0 +1,71 @@
+SPDX-License-Identifier: CC-BY-SA-4.0 OR BSD-2-Clause
+copyrights:
+- Copyright (C) 2024 embedded brains GmbH & Co. KG
+enabled-by: bsps/arm/xilinx-zynqmp-rpu
+links: []
+test-actions:
+- action-brief: |
+    Synchronize with the clock tick.  Disable interrupts.  Busy wait three
+    clock tick intervals.  Enable interrupts.
+  action-code: |
+    uint32_t              ns_per_tick;
+    uint64_t              three_ticks_interval;
+    rtems_interrupt_level level;
+    rtems_interval        t_0;
+    rtems_interval        t_1;
+    rtems_interval        t_2;
+    uint64_t              m_0;
+    uint64_t              m_1;
+
+    ns_per_tick = rtems_configuration_get_nanoseconds_per_tick();
+    three_ticks_interval = ( 7 * (uint64_t) nstosbt( ns_per_tick ) ) / 2;
+    t_0 = rtems_clock_get_ticks_since_boot();
+
+    /* Synchronize with clock tick */
+    do {
+      t_1 = rtems_clock_get_ticks_since_boot();
+      m_0 = (uint64_t) rtems_clock_get_monotonic_sbintime();
+    } while ( t_0 == t_1 );
+
+    rtems_interrupt_local_disable( level );
+
+    do {
+      m_1 = (uint64_t) rtems_clock_get_monotonic_sbintime();
+    } while ( m_1 - m_0 <= three_ticks_interval );
+
+    rtems_interrupt_local_enable( level );
+
+    /*
+     * Make sure the clock interrupt was serviced after the interrupt enable.
+     */
+    do {
+      t_2 = rtems_clock_get_ticks_since_boot();
+    } while ( t_1 == t_2 );
+  checks:
+  - brief: |
+      Check that exactly three clock ticks happened once interrupts are enabled
+      again.
+    code: |
+      T_step_eq_u32( ${.:/step}, t_2 - t_1, 3 );
+    links:
+    - role: validation
+      uid: ../req/tick-catch-up-interval
+    - role: validation
+      uid: ../req/tick-catch-up-ticks
+  links: []
+test-brief: |
+  Tests some Xilinx TTC clock driver functions.
+test-context: []
+test-context-support: null
+test-description: null
+test-header: null
+test-includes:
+- rtems.h
+- sys/time.h
+test-local-includes: []
+test-setup: null
+test-stop: null
+test-support: null
+test-target: testsuites/validation/tc-dev-clock-xil-ttc.c
+test-teardown: null
+type: test-case