patch-2.4.22 linux-2.4.22/arch/sh64/mach-cayman/led.c

• Lines: 52
• Date: 2003-08-25 04:44:40.000000000 -0700
• Orig file: linux-2.4.21/arch/sh64/mach-cayman/led.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/arch/sh64/mach-cayman/led.c linux-2.4.22/arch/sh64/mach-cayman/led.c
@@ -0,0 +1,51 @@
+/*
+ * arch/sh64/kernel/led_cayman.c
+ *
+ * Copyright (C) 2002 Stuart Menefy <stuart.menefy@st.com>
+ *
+ * May be copied or modified under the terms of the GNU General Public
+ * License.  See linux/COPYING for more information.
+ *
+ * Flash the LEDs
+ */
+#include <asm/io.h>
+
+/*
+** It is supposed these functions to be used for a low level
+** debugging (via Cayman LEDs), hence to be available as soon
+** as possible.
+** Unfortunately Cayman LEDs relies on Cayman EPLD to be mapped
+** (this happen when IRQ are initialized... quite late).
+** These triky dependencies should be removed. Temporary, it
+** may be enough to NOP until EPLD is mapped.
+*/
+
+extern unsigned long epld_virt;
+
+#define LED_ADDR      (epld_virt + 0x008)
+#define HDSP2534_ADDR (epld_virt + 0x100)
+
+void mach_led(int position, int value)
+{
+	if (!epld_virt)
+		return;
+
+	if (value)
+		ctrl_outl(0, LED_ADDR);
+	else
+		ctrl_outl(1, LED_ADDR);
+
+}
+
+void mach_alphanum(int position, unsigned char value)
+{
+	if (!epld_virt)
+		return;
+
+	ctrl_outb(value, HDSP2534_ADDR + 0xe0 + (position << 2));
+}
+
+void mach_alphanum_brightness(int setting)
+{
+	ctrl_outb(setting & 7, HDSP2534_ADDR + 0xc0);
+}