patch-2.4.9 linux/arch/arm/mach-sa1100/leds-cerf.c

• Lines: 112
• Date: Sun Aug 12 17:36:24 2001
• Orig file: v2.4.8/linux/arch/arm/mach-sa1100/leds-cerf.c
• Orig date: Wed Dec 31 16:00:00 1969

diff -u --recursive --new-file v2.4.8/linux/arch/arm/mach-sa1100/leds-cerf.c linux/arch/arm/mach-sa1100/leds-cerf.c
@@ -0,0 +1,111 @@
+/*
+ * linux/arch/arm/mach-sa1100/leds-cerf.c
+ *
+ * Author: ???
+ */
+#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_D0          GPIO_GPIO(0)
+#define LED_D1          GPIO_GPIO(1)
+#define LED_D2          GPIO_GPIO(2)
+#define LED_D3          GPIO_GPIO(3)
+#define LED_MASK        (LED_D0|LED_D1|LED_D2|LED_D3)
+
+void cerf_leds_event(led_event_t evt)
+{
+        unsigned long flags;
+
+	local_irq_save(flags);
+
+        switch (evt) {
+        case led_start:
+                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_D0;
+                break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+        case led_idle_start:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state &= ~LED_D1;
+                break;
+
+        case led_idle_end:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state |= LED_D1;
+                break;
+#endif
+        case led_green_on:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state &= ~LED_D2;
+                break;
+
+        case led_green_off:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state |= LED_D2;
+                break;
+
+        case led_amber_on:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state &= ~LED_D3;
+                break;
+
+        case led_amber_off:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state |= LED_D3;
+                break;
+
+        case led_red_on:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state &= ~LED_D1;
+                break;
+
+        case led_red_off:
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state |= LED_D1;
+                break;
+
+        default:
+                break;
+        }
+
+        if  (led_state & LED_STATE_ENABLED) {
+                GPSR = hw_led_state;
+                GPCR = hw_led_state ^ LED_MASK;
+        }
+
+	local_irq_restore(flags);
+}