1 files changed, 113 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/leds-assabet.c b/arch/arm/mach-sa1100/leds-assabet.c
new file mode 100644
index 00000000..3699176b
--- /dev/null
+++ b/arch/arm/mach-sa1100/leds-assabet.c
@@ -0,0 +1,113 @@
+/*
+ * linux/arch/arm/mach-sa1100/leds-assabet.c
+ *
+ * Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu>
+ *
+ * Original (leds-footbridge.c) by Russell King
+ *
+ * Assabet uses the LEDs as follows:
+ *   - Green - toggles state every 50 timer interrupts
+ *   - Red   - on if system is not idle
+ */
+#include <linux/init.h>
+
+#include <mach/hardware.h>
+#include <asm/leds.h>
+#include <mach/assabet.h>
+
+#include "leds.h"
+
+
+#define LED_STATE_ENABLED	1
+#define LED_STATE_CLAIMED	2
+
+static unsigned int led_state;
+static unsigned int hw_led_state;
+
+#define ASSABET_BCR_LED_MASK	(ASSABET_BCR_LED_GREEN | ASSABET_BCR_LED_RED)
+
+void assabet_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	switch (evt) {
+	case led_start:
+		hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN;
+		led_state = LED_STATE_ENABLED;
+		break;
+
+	case led_stop:
+		led_state &= ~LED_STATE_ENABLED;
+		hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN;
+		ASSABET_BCR_frob(ASSABET_BCR_LED_MASK, hw_led_state);
+		break;
+
+	case led_claim:
+		led_state |= LED_STATE_CLAIMED;
+		hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN;
+		break;
+
+	case led_release:
+		led_state &= ~LED_STATE_CLAIMED;
+		hw_led_state = ASSABET_BCR_LED_RED | ASSABET_BCR_LED_GREEN;
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state ^= ASSABET_BCR_LED_GREEN;
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	case led_idle_start:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state |= ASSABET_BCR_LED_RED;
+		break;
+
+	case led_idle_end:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state &= ~ASSABET_BCR_LED_RED;
+		break;
+#endif
+
+	case led_halted:
+		break;
+
+	case led_green_on:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state &= ~ASSABET_BCR_LED_GREEN;
+		break;
+
+	case led_green_off:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state |= ASSABET_BCR_LED_GREEN;
+		break;
+
+	case led_amber_on:
+		break;
+
+	case led_amber_off:
+		break;
+
+	case led_red_on:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state &= ~ASSABET_BCR_LED_RED;
+		break;
+
+	case led_red_off:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state |= ASSABET_BCR_LED_RED;
+		break;
+
+	default:
+		break;
+	}
+
+	if  (led_state & LED_STATE_ENABLED)
+		ASSABET_BCR_frob(ASSABET_BCR_LED_MASK, hw_led_state);
+
+	local_irq_restore(flags);
+}