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authorSrikant Patnaik2015-01-13 15:08:24 +0530
committerSrikant Patnaik2015-01-13 15:08:24 +0530
commit97327692361306d1e6259021bc425e32832fdb50 (patch)
treefe9088f3248ec61e24f404f21b9793cb644b7f01 /arch/arm/mach-sa1100/leds-badge4.c
parent2d05a8f663478a44e088d122e0d62109bbc801d0 (diff)
parenta3a8b90b61e21be3dde9101c4e86c881e0f06210 (diff)
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dirty fix to merging
Diffstat (limited to 'arch/arm/mach-sa1100/leds-badge4.c')
-rw-r--r--arch/arm/mach-sa1100/leds-badge4.c110
1 files changed, 110 insertions, 0 deletions
diff --git a/arch/arm/mach-sa1100/leds-badge4.c b/arch/arm/mach-sa1100/leds-badge4.c
new file mode 100644
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--- /dev/null
+++ b/arch/arm/mach-sa1100/leds-badge4.c
@@ -0,0 +1,110 @@
+/*
+ * linux/arch/arm/mach-sa1100/leds-badge4.c
+ *
+ * Author: Christopher Hoover <ch@hpl.hp.com>
+ * Copyright (C) 2002 Hewlett-Packard Company
+ *
+ * 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/init.h>
+
+#include <mach/hardware.h>
+#include <asm/leds.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_RED GPIO_GPIO(7)
+#define LED_GREEN GPIO_GPIO(9)
+#define LED_MASK (LED_RED|LED_GREEN)
+
+#define LED_IDLE LED_GREEN
+#define LED_TIMER LED_RED
+
+void badge4_leds_event(led_event_t evt)
+{
+ unsigned long flags;
+
+ local_irq_save(flags);
+
+ switch (evt) {
+ case led_start:
+ GPDR |= LED_MASK;
+ hw_led_state = LED_MASK;
+ 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:
+ /* LED off when system is idle */
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state &= ~LED_IDLE;
+ break;
+
+ case led_idle_end:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state |= LED_IDLE;
+ break;
+#endif
+
+ case led_red_on:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state &= ~LED_RED;
+ break;
+
+ case led_red_off:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state |= LED_RED;
+ break;
+
+ case led_green_on:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state &= ~LED_GREEN;
+ break;
+
+ case led_green_off:
+ if (!(led_state & LED_STATE_CLAIMED))
+ hw_led_state |= LED_GREEN;
+ break;
+
+ default:
+ break;
+ }
+
+ if (led_state & LED_STATE_ENABLED) {
+ GPSR = hw_led_state;
+ GPCR = hw_led_state ^ LED_MASK;
+ }
+
+ local_irq_restore(flags);
+}