1 files changed, 121 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-mainstone.c b/arch/arm/mach-pxa/leds-mainstone.c
new file mode 100644
index 000000000000..bbd3f87a9fc2
--- /dev/null
+++ b/arch/arm/mach-pxa/leds-mainstone.c
@@ -0,0 +1,121 @@
+/*
+ * linux/arch/arm/mach-pxa/leds-mainstone.c
+ *
+ * Author:     Nicolas Pitre
+ * Created:    Nov 05, 2002
+ * Copyright:  MontaVista Software Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/leds.h>
+#include <asm/system.h>
+
+#include <asm/arch/pxa-regs.h>
+#include <asm/arch/mainstone.h>
+
+#include "leds.h"
+
+
+/* 8 discrete leds available for general use: */
+#define D28			(1 << 0)
+#define D27			(1 << 1)
+#define D26			(1 << 2)
+#define D25			(1 << 3)
+#define D24			(1 << 4)
+#define D23			(1 << 5)
+#define D22			(1 << 6)
+#define D21			(1 << 7)
+
+#define LED_STATE_ENABLED	1
+#define LED_STATE_CLAIMED	2
+
+static unsigned int led_state;
+static unsigned int hw_led_state;
+
+void mainstone_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	switch (evt) {
+	case led_start:
+		hw_led_state = 0;
+		led_state = LED_STATE_ENABLED;
+		break;
+
+	case led_stop:
+		led_state &= ~LED_STATE_ENABLED;
+		break;
+
+	case led_claim:
+		led_state |= LED_STATE_CLAIMED;
+		hw_led_state = 0;
+		break;
+
+	case led_release:
+		led_state &= ~LED_STATE_CLAIMED;
+		hw_led_state = 0;
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:
+		hw_led_state ^= D26;
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	case led_idle_start:
+		hw_led_state &= ~D27;
+		break;
+
+	case led_idle_end:
+		hw_led_state |= D27;
+		break;
+#endif
+
+	case led_halted:
+		break;
+
+	case led_green_on:
+		hw_led_state |= D21;;
+		break;
+
+	case led_green_off:
+		hw_led_state &= ~D21;
+		break;
+
+	case led_amber_on:
+		hw_led_state |= D22;;
+		break;
+
+	case led_amber_off:
+		hw_led_state &= ~D22;
+		break;
+
+	case led_red_on:
+		hw_led_state |= D23;;
+		break;
+
+	case led_red_off:
+		hw_led_state &= ~D23;
+		break;
+
+	default:
+		break;
+	}
+
+	if  (led_state & LED_STATE_ENABLED)
+		MST_LEDCTRL = (MST_LEDCTRL | 0xff) & ~hw_led_state;
+	else
+		MST_LEDCTRL |= 0xff;
+
+	local_irq_restore(flags);
+}