patch-2.3.41 linux/arch/m68k/sun3/intersil.c

• Lines: 101
• Date: Wed Jan 26 12:44:21 2000
• Orig file: v2.3.40/linux/arch/m68k/sun3/intersil.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.3.40/linux/arch/m68k/sun3/intersil.c linux/arch/m68k/sun3/intersil.c
@@ -0,0 +1,100 @@
+/*
+ * arch/m68k/sun3/intersil.c
+ *
+ * basic routines for accessing the intersil clock within the sun3 machines
+ *
+ * started 11/12/1999 Sam Creasey
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file COPYING in the main directory of this archive
+ * for more details.
+ */
+
+#include <linux/kernel.h>
+#include <linux/kd.h>
+
+#include <asm/system.h>
+#include <asm/intersil.h>
+
+
+/* bits to set for start/run of the intersil */
+#define STOP_VAL (INTERSIL_STOP | INTERSIL_INT_ENABLE | INTERSIL_24H_MODE)
+#define START_VAL (INTERSIL_RUN | INTERSIL_INT_ENABLE | INTERSIL_24H_MODE)
+
+/* does this need to be implemented? */
+unsigned long sun3_gettimeoffset(void)
+{ 
+  return 1;
+}
+
+void sun3_gettod (int *yearp, int *monp, int *dayp,
+                   int *hourp, int *minp, int *secp)
+{
+	u_char wday;
+	volatile struct intersil_dt* todintersil;
+	unsigned long flags;
+
+        todintersil = (struct intersil_dt *) &intersil_clock->counter;
+
+	save_and_cli(flags);
+
+	intersil_clock->cmd_reg = STOP_VAL;
+
+	*secp  = todintersil->csec;
+        *hourp = todintersil->hour;
+        *minp  = todintersil->minute;
+        *secp  = todintersil->second; 
+        *monp  = todintersil->month;
+        *dayp  = todintersil->day;
+        *yearp = todintersil->year+68; /* The base year for sun3 is 1968 */
+	wday = todintersil->weekday;
+
+	intersil_clock->cmd_reg = START_VAL;
+
+	restore_flags(flags);
+}
+
+
+/* get/set hwclock */
+
+int sun3_hwclk(int set, struct hwclk_time *t)
+{
+	volatile struct intersil_dt *todintersil;
+	unsigned long flags;
+
+        todintersil = (struct intersil_dt *) &intersil_clock->counter;
+
+	save_and_cli(flags);
+
+	intersil_clock->cmd_reg = STOP_VAL;
+
+	/* set or read the clock */
+	if(set) {
+		todintersil->csec = 0;
+		todintersil->hour = t->hour;
+		todintersil->minute = t->min;
+		todintersil->second = t->sec;
+		todintersil->month = t->mon;
+		todintersil->day = t->day;
+		todintersil->year = t->year - 68;
+		todintersil->weekday = t->wday;
+	} else {
+		/* read clock */
+		t->sec = todintersil->csec;
+		t->hour = todintersil->hour;
+		t->min = todintersil->minute;
+		t->sec = todintersil->second;
+		t->mon = todintersil->month;
+		t->day = todintersil->day;
+		t->year = todintersil->year + 68;
+		t->wday = todintersil->weekday;
+	}
+
+	intersil_clock->cmd_reg = START_VAL;
+
+	restore_flags(flags);
+
+	return 0;
+
+}
+