Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 102 insertions, 0 deletions

diff --git a/arch/arm/mach-sa1100/leds-lart.c b/arch/arm/mach-sa1100/leds-lart.c
new file mode 100644
index 000000000000..187501490713
--- /dev/null
+++ b/arch/arm/mach-sa1100/leds-lart.c
@@ -0,0 +1,102 @@
+/*
+ * linux/arch/arm/mach-sa1100/leds-lart.c
+ *
+ * (C) Erik Mouw (J.A.K.Mouw@its.tudelft.nl), April 21, 2000
+ *
+ * LART uses the LED as follows:
+ *   - GPIO23 is the LED, on if system is not idle
+ *  You can use both CONFIG_LEDS_CPU and CONFIG_LEDS_TIMER at the same
+ *  time, but in that case the timer events will still dictate the
+ *  pace of the LED.
+ */
+#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_23    GPIO_GPIO23
+#define LED_MASK  (LED_23)
+
+void lart_leds_event(led_event_t evt)
+{
+        unsigned long flags;
+
+        local_irq_save(flags);
+
+        switch(evt) {
+        case led_start:
+                /* pin 23 is output pin */
+                GPDR |= LED_23;
+                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_23;
+                break;
+#endif
+
+#ifdef CONFIG_LEDS_CPU
+        case led_idle_start:
+                /* The LART people like the LED to be off when the
+                   system is idle... */
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state &= ~LED_23;
+                break;
+
+        case led_idle_end:
+                /* ... and on if the system is not idle */
+                if (!(led_state & LED_STATE_CLAIMED))
+                        hw_led_state |= LED_23;
+                break;
+#endif
+
+        case led_red_on:
+                if (led_state & LED_STATE_CLAIMED)
+                        hw_led_state &= ~LED_23;
+                break;
+
+        case led_red_off:
+                if (led_state & LED_STATE_CLAIMED)
+                        hw_led_state |= LED_23;
+                break;
+
+        default:
+                break;
+        }
+
+        /* Now set the GPIO state, or nothing will happen at all */
+        if (led_state & LED_STATE_ENABLED) {
+                GPSR = hw_led_state;
+                GPCR = hw_led_state ^ LED_MASK;
+        }
+
+        local_irq_restore(flags);
+}