1 files changed, 103 insertions, 0 deletions
diff --git a/roms/seabios-hppa/src/parisc/timer.c b/roms/seabios-hppa/src/parisc/timer.c
new file mode 100644
index 000000000..ea8214f1b
--- /dev/null
+++ b/roms/seabios-hppa/src/parisc/timer.c
@@ -0,0 +1,103 @@
+// Internal timer
+//
+// Copyright (C) 2008-2013  Kevin O'Connor <kevin@koconnor.net>
+//
+// This file may be distributed under the terms of the GNU LGPLv3 license.
+
+#include "config.h" // CONFIG_*
+#include "x86.h" // rdtscll()
+#include "util.h" // timer_setup
+#include "parisc/pdc.h"
+
+#define PAGE0 ((volatile struct zeropage *) 0UL)
+
+// Setup internal timers.
+void
+timer_setup(void)
+{
+}
+
+void
+pmtimer_setup(u16 ioport)
+{
+}
+
+// Return the number of milliseconds in 'ticks' number of timer irqs.
+u32 ticks_to_ms(u32 ticks)
+{
+    return (10 * ticks / PAGE0->mem_10msec);
+}
+
+
+u32 ticks_from_ms(u32 ms)
+{
+    return (ms * PAGE0->mem_10msec / 10);
+}
+
+
+/****************************************************************
+ * Internal timer reading
+ ****************************************************************/
+
+u32 TimerLast VARLOW;
+
+// Sample the current timer value.
+static u32
+timer_read(void)
+{
+    return rdtscll();
+}
+
+// Check if the current time is past a previously calculated end time.
+int
+timer_check(u32 end)
+{
+    return (s32)(timer_read() - end) > 0;
+}
+
+static void
+timer_sleep(u32 diff)
+{
+    u32 start = timer_read();
+    u32 end = start + diff;
+    while (!timer_check(end))
+        /* idle wait */;
+}
+
+void ndelay(u32 count) {
+    timer_sleep((count * PAGE0->mem_10msec / 10) / 1000 / 1000);
+}
+void udelay(u32 count) {
+    timer_sleep((count * PAGE0->mem_10msec / 10) / 1000);
+}
+void mdelay(u32 count) {
+    timer_sleep((count * PAGE0->mem_10msec / 10));
+}
+
+void nsleep(u32 count) {
+    ndelay(count);
+}
+void usleep(u32 count) {
+    udelay(count);
+}
+void msleep(u32 count) {
+    mdelay(count);
+}
+
+// Return the TSC value that is 'msecs' time in the future.
+u32
+timer_calc(u32 msecs)
+{
+    return (msecs * PAGE0->mem_10msec / 10) + timer_read();
+}
+u32
+timer_calc_usec(u32 usecs)
+{
+    return ((usecs * PAGE0->mem_10msec / 10) / 1000) + timer_read();
+}
+
+
+void
+pit_setup(void)
+{
+}