initial_commit

1 files changed, 116 insertions, 0 deletions

diff --git a/arch/arm/mach-pxa/leds-idp.c b/arch/arm/mach-pxa/leds-idp.c
new file mode 100644
index 00000000..8b9c1714
--- /dev/null
+++ b/arch/arm/mach-pxa/leds-idp.c
@@ -0,0 +1,116 @@
+/*
+ * linux/arch/arm/mach-pxa/leds-idp.c
+ *
+ * Copyright (C) 2000 John Dorsey <john+@cs.cmu.edu>
+ *
+ * Copyright (c) 2001 Jeff Sutherland <jeffs@accelent.com>
+ *
+ * Original (leds-footbridge.c) by Russell King
+ *
+ * Macros for actual LED manipulation should be in machine specific
+ * files in this 'mach' directory.
+ */
+
+
+#include <linux/init.h>
+
+#include <mach/hardware.h>
+#include <asm/leds.h>
+#include <asm/system.h>
+
+#include <mach/pxa25x.h>
+#include <mach/idp.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;
+
+void idp_leds_event(led_event_t evt)
+{
+	unsigned long flags;
+
+	local_irq_save(flags);
+
+	switch (evt) {
+	case led_start:
+		hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
+		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 = IDP_HB_LED | IDP_BUSY_LED;
+		break;
+
+	case led_release:
+		led_state &= ~LED_STATE_CLAIMED;
+		hw_led_state = IDP_HB_LED | IDP_BUSY_LED;
+		break;
+
+#ifdef CONFIG_LEDS_TIMER
+	case led_timer:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state ^= IDP_HB_LED;
+		break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+	case led_idle_start:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state &= ~IDP_BUSY_LED;
+		break;
+
+	case led_idle_end:
+		if (!(led_state & LED_STATE_CLAIMED))
+			hw_led_state |= IDP_BUSY_LED;
+		break;
+#endif
+
+	case led_halted:
+		break;
+
+	case led_green_on:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state |= IDP_HB_LED;
+		break;
+
+	case led_green_off:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state &= ~IDP_HB_LED;
+		break;
+
+	case led_amber_on:
+		break;
+
+	case led_amber_off:
+		break;
+
+	case led_red_on:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state |= IDP_BUSY_LED;
+		break;
+
+	case led_red_off:
+		if (led_state & LED_STATE_CLAIMED)
+			hw_led_state &= ~IDP_BUSY_LED;
+		break;
+
+	default:
+		break;
+	}
+
+	if  (led_state & LED_STATE_ENABLED)
+		IDP_CPLD_LED_CONTROL = ( (IDP_CPLD_LED_CONTROL | IDP_LEDS_MASK) & ~hw_led_state);
+	else
+		IDP_CPLD_LED_CONTROL |= IDP_LEDS_MASK;
+
+	local_irq_restore(flags);
+}