zte's code,first commit
Change-Id: I9a04da59e459a9bc0d67f101f700d9d7dc8d681b
diff --git a/ap/os/linux/linux-3.4.x/arch/arm/mach-omap1/leds-osk.c b/ap/os/linux/linux-3.4.x/arch/arm/mach-omap1/leds-osk.c
new file mode 100644
index 0000000..936ed42
--- /dev/null
+++ b/ap/os/linux/linux-3.4.x/arch/arm/mach-omap1/leds-osk.c
@@ -0,0 +1,113 @@
+/*
+ * linux/arch/arm/mach-omap1/leds-osk.c
+ *
+ * LED driver for OSK with optional Mistral QVGA board
+ */
+#include <linux/gpio.h>
+#include <linux/init.h>
+
+#include <mach/hardware.h>
+#include <asm/leds.h>
+
+#include "leds.h"
+
+
+#define LED_STATE_ENABLED (1 << 0)
+#define LED_STATE_CLAIMED (1 << 1)
+static u8 led_state;
+
+#define TIMER_LED (1 << 3) /* Mistral board */
+#define IDLE_LED (1 << 4) /* Mistral board */
+static u8 hw_led_state;
+
+
+#ifdef CONFIG_OMAP_OSK_MISTRAL
+
+/* For now, all system indicators require the Mistral board, since that
+ * LED can be manipulated without a task context. This LED is either red,
+ * or green, but not both; it can't give the full "disco led" effect.
+ */
+
+#define GPIO_LED_RED 3
+#define GPIO_LED_GREEN OMAP_MPUIO(4)
+
+static void mistral_setled(void)
+{
+ int red = 0;
+ int green = 0;
+
+ if (hw_led_state & TIMER_LED)
+ red = 1;
+ else if (hw_led_state & IDLE_LED)
+ green = 1;
+ /* else both sides are disabled */
+
+ gpio_set_value(GPIO_LED_GREEN, green);
+ gpio_set_value(GPIO_LED_RED, red);
+}
+
+#endif
+
+void osk_leds_event(led_event_t evt)
+{
+ unsigned long flags;
+ u16 leds;
+
+ local_irq_save(flags);
+
+ if (!(led_state & LED_STATE_ENABLED) && evt != led_start)
+ goto done;
+
+ leds = hw_led_state;
+ switch (evt) {
+ case led_start:
+ led_state |= LED_STATE_ENABLED;
+ hw_led_state = 0;
+ leds = ~0;
+ break;
+
+ case led_halted:
+ case led_stop:
+ led_state &= ~LED_STATE_ENABLED;
+ hw_led_state = 0;
+ break;
+
+ case led_claim:
+ led_state |= LED_STATE_CLAIMED;
+ hw_led_state = 0;
+ leds = ~0;
+ break;
+
+ case led_release:
+ led_state &= ~LED_STATE_CLAIMED;
+ hw_led_state = 0;
+ break;
+
+#ifdef CONFIG_OMAP_OSK_MISTRAL
+
+ case led_timer:
+ hw_led_state ^= TIMER_LED;
+ mistral_setled();
+ break;
+
+ case led_idle_start: /* idle == off */
+ hw_led_state &= ~IDLE_LED;
+ mistral_setled();
+ break;
+
+ case led_idle_end:
+ hw_led_state |= IDLE_LED;
+ mistral_setled();
+ break;
+
+#endif /* CONFIG_OMAP_OSK_MISTRAL */
+
+ default:
+ break;
+ }
+
+ leds ^= hw_led_state;
+
+done:
+ local_irq_restore(flags);
+}