From c9ea9bda1dfaa54842bbdeb38145f41275376d95 Mon Sep 17 00:00:00 2001
From: sigsegv7 <ian@vegaa.systems>
Date: Wed, 20 Sep 2023 03:02:39 -0400
Subject: kernel: init_main: Dump timer registry

Signed-off-by: sigsegv7 <ian@vegaa.systems>
---
 sys/kern/init_main.c | 33 +++++++++++++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/sys/kern/init_main.c b/sys/kern/init_main.c
index f874ca8..f96128c 100644
--- a/sys/kern/init_main.c
+++ b/sys/kern/init_main.c
@@ -31,13 +31,44 @@
 #include <sys/tty.h>
 #include <sys/syslog.h>
 #include <sys/machdep.h>
+#include <sys/timer.h>
 #include <firmware/acpi/acpi.h>
 #include <vm/vm_physseg.h>
 #include <logo.h>
 
+__MODULE_NAME("init_main");
 __KERNEL_META("$Vega$: init_main.c, Ian Marco Moffett, "
               "Where the Vega kernel first starts up");
 
+static inline void
+log_timer(const char *purpose, tmrr_status_t s, const struct timer *tmr)
+{
+    if (s == TMRR_EMPTY_ENTRY) {
+        KINFO("%s not yet registered\n", purpose);
+    } else if (tmr->name == NULL) {
+        KINFO("Nameless %s registered; unknown\n", purpose);
+    } else {
+        KINFO("%s registered: %s\n", purpose, tmr->name);
+    }
+}
+
+/*
+ * Logs what timers are registered
+ * on the system.
+ */
+static void
+list_timers(void)
+{
+    struct timer timer_tmp;
+    tmrr_status_t status;
+
+    status = req_timer(TIMER_SCHED, &timer_tmp);
+    log_timer("SCHED_TMR", status, &timer_tmp);
+
+    status = req_timer(TIMER_GP, &timer_tmp);
+    log_timer("GENERAL_PURPOSE_TMR", status, &timer_tmp);
+}
+
 void
 main(void)
 {
@@ -53,6 +84,8 @@ main(void)
     processor_init();
     vm_physseg_init();
 
+    list_timers();
+
     /* We're done here, halt the processor */
     __ASMV("cli; hlt");
 }
-- 
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