From da2014a2b080e7f3024a4eb6917d47069ad9620b Mon Sep 17 00:00:00 2001
From: Paul Mundt <lethal@linux-sh.org>
Date: Tue, 29 Jul 2008 21:01:19 +0900
Subject: sh: Shuffle the board directories in to mach groups.

This flattens out the board directories in to individual mach groups,
we will use this for getting rid of unneeded directories, simplifying
the build system, and becoming more coherent with the refactored
arch/sh/include topology.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
---
 arch/sh/boards/mach-microdev/led.c | 101 +++++++++++++++++++++++++++++++++++++
 1 file changed, 101 insertions(+)
 create mode 100644 arch/sh/boards/mach-microdev/led.c

(limited to 'arch/sh/boards/mach-microdev/led.c')

diff --git a/arch/sh/boards/mach-microdev/led.c b/arch/sh/boards/mach-microdev/led.c
new file mode 100644
index 000000000000..36e54b47a752
--- /dev/null
+++ b/arch/sh/boards/mach-microdev/led.c
@@ -0,0 +1,101 @@
+/*
+ * linux/arch/sh/boards/superh/microdev/led.c
+ *
+ * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
+ * Copyright (C) 2003 Richard Curnow (Richard.Curnow@superh.com)
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ */
+
+#include <asm/io.h>
+
+#define LED_REGISTER 0xa6104d20
+
+static void mach_led_d9(int value)
+{
+	unsigned long reg;
+	reg = ctrl_inl(LED_REGISTER);
+	reg &= ~1;
+	reg |= (value & 1);
+	ctrl_outl(reg, LED_REGISTER);
+	return;
+}
+
+static void mach_led_d10(int value)
+{
+	unsigned long reg;
+	reg = ctrl_inl(LED_REGISTER);
+	reg &= ~2;
+	reg |= ((value & 1) << 1);
+	ctrl_outl(reg, LED_REGISTER);
+	return;
+}
+
+
+#ifdef CONFIG_HEARTBEAT
+#include <linux/sched.h>
+
+static unsigned char banner_table[] = {
+	0x11, 0x01, 0x11, 0x01, 0x11, 0x03,
+	0x11, 0x01, 0x11, 0x01, 0x13, 0x03,
+	0x11, 0x01, 0x13, 0x01, 0x13, 0x01, 0x11, 0x03,
+	0x11, 0x03,
+	0x11, 0x01, 0x13, 0x01, 0x11, 0x03,
+	0x11, 0x01, 0x11, 0x01, 0x11, 0x01, 0x11, 0x07,
+	0x13, 0x01, 0x13, 0x03,
+	0x11, 0x01, 0x11, 0x03,
+	0x13, 0x01, 0x11, 0x01, 0x13, 0x01, 0x11, 0x03,
+	0x11, 0x01, 0x13, 0x01, 0x11, 0x03,
+	0x13, 0x01, 0x13, 0x01, 0x13, 0x03,
+	0x13, 0x01, 0x11, 0x01, 0x11, 0x03,
+	0x11, 0x03,
+	0x11, 0x01, 0x11, 0x01, 0x11, 0x01, 0x13, 0x07,
+	0xff
+};
+
+static void banner(void)
+{
+	static int pos = 0;
+	static int count = 0;
+
+	if (count) {
+		count--;
+	} else {
+		int val = banner_table[pos];
+		if (val == 0xff) {
+			pos = 0;
+			val = banner_table[pos];
+		}
+		pos++;
+		mach_led_d10((val >> 4) & 1);
+		count = 10 * (val & 0xf);
+	}
+}
+
+/* From heartbeat_harp in the stboards directory */
+/* acts like an actual heart beat -- ie thump-thump-pause... */
+void microdev_heartbeat(void)
+{
+	static unsigned cnt = 0, period = 0, dist = 0;
+
+	if (cnt == 0 || cnt == dist)
+		mach_led_d9(1);
+	else if (cnt == 7 || cnt == dist+7)
+		mach_led_d9(0);
+
+	if (++cnt > period) {
+		cnt = 0;
+		/* The hyperbolic function below modifies the heartbeat period
+		 * length in dependency of the current (5min) load. It goes
+		 * through the points f(0)=126, f(1)=86, f(5)=51,
+		 * f(inf)->30. */
+		period = ((672<<FSHIFT)/(5*avenrun[0]+(7<<FSHIFT))) + 30;
+		dist = period / 4;
+	}
+
+	banner();
+}
+
+#endif
-- 
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