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authorSrikant Patnaik2015-01-11 12:28:04 +0530
committerSrikant Patnaik2015-01-11 12:28:04 +0530
commit871480933a1c28f8a9fed4c4d34d06c439a7a422 (patch)
tree8718f573808810c2a1e8cb8fb6ac469093ca2784 /arch/arm/mach-pxa/leds-lubbock.c
parent9d40ac5867b9aefe0722bc1f110b965ff294d30d (diff)
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Moved, renamed, and deleted files
The original directory structure was scattered and unorganized. Changes are basically to make it look like kernel structure.
Diffstat (limited to 'arch/arm/mach-pxa/leds-lubbock.c')
-rw-r--r--arch/arm/mach-pxa/leds-lubbock.c124
1 files changed, 124 insertions, 0 deletions
diff --git a/arch/arm/mach-pxa/leds-lubbock.c b/arch/arm/mach-pxa/leds-lubbock.c
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+/*
+ * linux/arch/arm/mach-pxa/leds-lubbock.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
+ *
+ * Major surgery on April 2004 by Nicolas Pitre for less global
+ * namespace collision. Mostly adapted the Mainstone version.
+ */
+
+#include <linux/init.h>
+
+#include <mach/hardware.h>
+#include <asm/leds.h>
+#include <mach/pxa25x.h>
+#include <mach/lubbock.h>
+
+#include "leds.h"
+
+/*
+ * 8 discrete leds available for general use:
+ *
+ * Note: bits [15-8] are used to enable/blank the 8 7 segment hex displays
+ * so be sure to not monkey with them here.
+ */
+
+#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 lubbock_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)
+ LUB_DISC_BLNK_LED = (LUB_DISC_BLNK_LED | 0xff) & ~hw_led_state;
+ else
+ LUB_DISC_BLNK_LED |= 0xff;
+
+ local_irq_restore(flags);
+}