patch-2.4.14 linux/arch/arm/mach-sa1100/leds-adsbitsy.c

• Lines: 97
• Date: Thu Oct 25 13:53:46 2001
• Orig file: v2.4.13/linux/arch/arm/mach-sa1100/leds-adsbitsy.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.13/linux/arch/arm/mach-sa1100/leds-adsbitsy.c linux/arch/arm/mach-sa1100/leds-adsbitsy.c
@@ -0,0 +1,96 @@
+/*
+ *  linux/arch/arm/mach-sa1100/leds-adsbitsy.c
+ *
+ * ADS Bitsy LED
+ * 7/25/01 Woojung Huh
+ */
+#include <linux/config.h>
+#include <linux/init.h>
+
+#include <asm/hardware.h>
+#include <asm/leds.h>
+#include <asm/system.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 LED_TIMER       GPIO_GPIO20  /* green heartbeat */
+
+#define LED_MASK		(LED_TIMER)
+
+void adsbitsy_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	save_flags_cli(flags);
+
+	switch (evt) {
+	case led_start:
+		hw_led_state = 0;        /* gc leds are positive logic */
+		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 = LED_MASK;
+		break;
+
+	case led_release:
+		led_state &= ~LED_STATE_CLAIMED;
+		hw_led_state = LED_MASK;
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state ^= LED_TIMER;
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	case led_idle_start:
+		break;
+
+	case led_idle_end:
+		break;
+#endif
+
+	case led_green_on:
+		break;
+
+	case led_green_off:
+		break;
+
+	case led_amber_on:
+		break;
+
+	case led_amber_off:
+		break;
+
+	case led_red_on:
+		break;
+
+	case led_red_off:
+		break;
+
+	default:
+		break;
+	}
+
+	if  (led_state & LED_STATE_ENABLED) {
+		GPSR = hw_led_state;
+		GPCR = hw_led_state ^ LED_MASK;
+	}
+
+	restore_flags(flags);
+}