X-Git-Url: http://git.zerfleddert.de/cgi-bin/gitweb.cgi/proxmark3-svn/blobdiff_plain/6658905f18a1eebc148836f26c731dea9c1377dc..7e931bbd32c878f6795a9c07d70ee96df2f675b2:/armsrc/util.c?ds=inline

diff --git a/armsrc/util.c b/armsrc/util.c
index b3f0e76e..8a3da63a 100644
--- a/armsrc/util.c
+++ b/armsrc/util.c
@@ -51,3 +51,174 @@ int strlen(char *str)
 	}
 	return l;
 }
+
+void LEDsoff()
+{
+	LED_A_OFF();
+	LED_B_OFF();
+	LED_C_OFF();
+	LED_D_OFF();
+}
+
+// LEDs: R(C) O(A) G(B) -- R(D) [1, 2, 4 and 8]
+void LED(int led, int ms)
+{
+	if (led & LED_RED)
+		LED_C_ON();
+	if (led & LED_ORANGE)
+		LED_A_ON();
+	if (led & LED_GREEN)
+		LED_B_ON();
+	if (led & LED_RED2)
+		LED_D_ON();
+
+	if (!ms)
+		return;
+
+	SpinDelay(ms);
+
+	if (led & LED_RED)
+		LED_C_OFF();
+	if (led & LED_ORANGE)
+		LED_A_OFF();
+	if (led & LED_GREEN)
+		LED_B_OFF();
+	if (led & LED_RED2)
+		LED_D_OFF();
+}
+
+
+// Determine if a button is double clicked, single clicked,
+// not clicked, or held down (for ms || 1sec)
+// In general, don't use this function unless you expect a
+// double click, otherwise it will waste 500ms -- use BUTTON_HELD instead
+int BUTTON_CLICKED(int ms)
+{
+	// Up to 500ms in between clicks to mean a double click
+	int ticks = (48000 * (ms ? ms : 1000)) >> 10;
+
+	// If we're not even pressed, forget about it!
+	if (!BUTTON_PRESS())
+		return BUTTON_NO_CLICK;
+
+	// Borrow a PWM unit for my real-time clock
+	PWM_ENABLE = PWM_CHANNEL(0);
+	// 48 MHz / 1024 gives 46.875 kHz
+	PWM_CH_MODE(0) = PWM_CH_MODE_PRESCALER(10);
+	PWM_CH_DUTY_CYCLE(0) = 0;
+	PWM_CH_PERIOD(0) = 0xffff;
+
+	WORD start = (WORD)PWM_CH_COUNTER(0);
+
+	int letoff = 0;
+	for(;;)
+	{
+		WORD now = (WORD)PWM_CH_COUNTER(0);
+
+		// We haven't let off the button yet
+		if (!letoff)
+		{
+			// We just let it off!
+			if (!BUTTON_PRESS())
+			{
+				letoff = 1;
+
+				// reset our timer for 500ms
+				start = (WORD)PWM_CH_COUNTER(0);
+				ticks = (48000 * (500)) >> 10;
+			}
+
+			// Still haven't let it off
+			else
+				// Have we held down a full second?
+				if (now == (WORD)(start + ticks))
+					return BUTTON_HOLD;
+		}
+
+		// We already let off, did we click again?
+		else
+			// Sweet, double click!
+			if (BUTTON_PRESS())
+				return BUTTON_DOUBLE_CLICK;
+
+			// Have we ran out of time to double click?
+			else
+				if (now == (WORD)(start + ticks))
+					// At least we did a single click
+					return BUTTON_SINGLE_CLICK;
+
+		WDT_HIT();
+	}
+
+	// We should never get here
+	return BUTTON_ERROR;
+}
+
+// Determine if a button is held down
+int BUTTON_HELD(int ms)
+{
+	// If button is held for one second
+	int ticks = (48000 * (ms ? ms : 1000)) >> 10;
+
+	// If we're not even pressed, forget about it!
+	if (!BUTTON_PRESS())
+		return BUTTON_NO_CLICK;
+
+	// Borrow a PWM unit for my real-time clock
+	PWM_ENABLE = PWM_CHANNEL(0);
+	// 48 MHz / 1024 gives 46.875 kHz
+	PWM_CH_MODE(0) = PWM_CH_MODE_PRESCALER(10);
+	PWM_CH_DUTY_CYCLE(0) = 0;
+	PWM_CH_PERIOD(0) = 0xffff;
+
+	WORD start = (WORD)PWM_CH_COUNTER(0);
+
+	for(;;)
+	{
+		WORD now = (WORD)PWM_CH_COUNTER(0);
+
+		// As soon as our button let go, we didn't hold long enough
+		if (!BUTTON_PRESS())
+			return BUTTON_SINGLE_CLICK;
+
+		// Have we waited the full second?
+		else
+			if (now == (WORD)(start + ticks))
+				return BUTTON_HOLD;
+
+		WDT_HIT();
+	}
+
+	// We should never get here
+	return BUTTON_ERROR;
+}
+
+// attempt at high resolution microsecond timer
+// beware: timer counts in 21.3uS increments (1024/48Mhz)
+void SpinDelayUs(int us)
+{
+	int ticks = (48*us) >> 10;
+
+	// Borrow a PWM unit for my real-time clock
+	PWM_ENABLE = PWM_CHANNEL(0);
+	// 48 MHz / 1024 gives 46.875 kHz
+	PWM_CH_MODE(0) = PWM_CH_MODE_PRESCALER(10);
+	PWM_CH_DUTY_CYCLE(0) = 0;
+	PWM_CH_PERIOD(0) = 0xffff;
+
+	WORD start = (WORD)PWM_CH_COUNTER(0);
+
+	for(;;) {
+		WORD now = (WORD)PWM_CH_COUNTER(0);
+		if (now == (WORD)(start + ticks))
+			return;
+
+		WDT_HIT();
+	}
+}
+
+void SpinDelay(int ms)
+{
+  // convert to uS and call microsecond delay function
+	SpinDelayUs(ms*1000);
+}