1 files changed, 146 insertions, 0 deletions
diff --git a/private/ntos/ndis/digi/pcimac/util.c b/private/ntos/ndis/digi/pcimac/util.c
new file mode 100644
index 000000000..448afe990
--- /dev/null
+++ b/private/ntos/ndis/digi/pcimac/util.c
@@ -0,0 +1,146 @@
+/*
+ * UTIL.C - some utility functions
+ */
+
+#include    <ndis.h>
+#include	<mydefs.h>
+#include	<mytypes.h>
+#include    <util.h>
+
+// Total Memory Allocated
+ULONG		TotalMemory = 0;
+
+/* constants */
+#define     BUF_SIZE        512
+
+#if !BINARY_COMPATIBLE
+/* get current time, in seconds */
+ULONG
+ut_time_now(VOID)
+{
+    LARGE_INTEGER           curr_time;
+    LARGE_INTEGER           sec;
+    static LARGE_INTEGER    base = {0, 0};
+    static BOOL             first_call = TRUE;
+
+    /* get current system time */
+    KeQuerySystemTime(&curr_time);
+
+    /* on first call, store base */
+    if ( first_call )
+    {
+        base = curr_time;
+        first_call = FALSE;
+    }
+    /* make relative to base */
+    curr_time.QuadPart -= base.QuadPart;
+    
+    /* convert to seconds */
+    sec.QuadPart = curr_time.QuadPart/10000000L;
+    
+    /* return as a ULONG */
+    return((ULONG)sec.LowPart);
+}
+#else
+/* get current time, in seconds */
+ULONG
+ut_time_now(VOID)
+{
+    ULONG                   seconds;
+    static BOOL             first_call = TRUE;
+
+    static ULONG            base = 0;
+    ULONG                   curr_time;
+
+
+    // BUGBUG - Have to get real time somehow
+     
+    curr_time = base + 1;
+     
+    /* on first call, store base */
+    if ( first_call )
+    {
+        base = curr_time;
+        first_call = FALSE;
+    }
+
+    /* make relative to base */
+    seconds = curr_time - base;
+
+    /* return as a ULONG */
+    return(seconds);
+}
+#endif
+
+/* allocate a buffer */
+CHAR*
+ut_get_buf(VOID)
+{
+    CHAR    *ret;
+    
+    NDIS_PHYSICAL_ADDRESS   pa = NDIS_PHYSICAL_ADDRESS_CONST(-1, -1);
+
+    NdisAllocateMemory((PVOID*)&ret, BUF_SIZE, 0, pa);
+
+    return(ret);
+}
+
+/* free buffer */
+VOID
+ut_free_buf(CHAR *buf)
+{
+    if ( buf )
+        NdisFreeMemory(buf, BUF_SIZE, 0);     
+}
+
+/* init */
+VOID
+sema_init(SEMA *s)
+{
+	s->signalled = FALSE;
+	NdisAllocateSpinLock (&s->lock);
+}
+
+VOID
+sema_term(SEMA *s)
+{
+	s->signalled = FALSE;
+	NdisFreeSpinLock (&s->lock);
+}
+
+/* try to get semaphore */
+BOOL
+sema_get(SEMA *s)
+{
+    BOOL    ret;
+//	KIRQL	NewIrql, OldIrql;
+    
+//	NewIrql = HIGH_LEVEL;
+
+//	KeRaiseIrql (NewIrql, &OldIrql);
+
+	NdisAcquireSpinLock (&s->lock);
+
+    if ( !s->signalled )
+        ret = s->signalled = TRUE;
+    else
+        ret = FALSE;
+    
+	NdisReleaseSpinLock (&s->lock);
+
+//	KeLowerIrql (OldIrql);
+    
+    return(ret);
+}
+
+/* free semaphore */
+VOID
+sema_free(SEMA *s)
+{
+	NdisAcquireSpinLock (&s->lock);
+
+    s->signalled = FALSE;
+
+	NdisReleaseSpinLock (&s->lock);
+}
+