Add USB_Host_Shield_2.0 and arduino-1.0.1 in usb_hid.

[tmk_firmware.git] / protocol / usb_hid / arduino-1.0.1 / cores / arduino / wiring_shift.c

diff --git a/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c b/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c
new file mode 100644 (file)
index 0000000..cfe7867
--- /dev/null
+++ b/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c
@@ -0,0 +1,55 @@
+/*
+  wiring_shift.c - shiftOut() function
+  Part of Arduino - http://www.arduino.cc/
+
+  Copyright (c) 2005-2006 David A. Mellis
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General
+  Public License along with this library; if not, write to the
+  Free Software Foundation, Inc., 59 Temple Place, Suite 330,
+  Boston, MA  02111-1307  USA
+
+  $Id: wiring.c 248 2007-02-03 15:36:30Z mellis $
+*/
+
+#include "wiring_private.h"
+
+uint8_t shiftIn(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder) {
+       uint8_t value = 0;
+       uint8_t i;
+
+       for (i = 0; i < 8; ++i) {
+               digitalWrite(clockPin, HIGH);
+               if (bitOrder == LSBFIRST)
+                       value |= digitalRead(dataPin) << i;
+               else
+                       value |= digitalRead(dataPin) << (7 - i);
+               digitalWrite(clockPin, LOW);
+       }
+       return value;
+}
+
+void shiftOut(uint8_t dataPin, uint8_t clockPin, uint8_t bitOrder, uint8_t val)
+{
+       uint8_t i;
+
+       for (i = 0; i < 8; i++)  {
+               if (bitOrder == LSBFIRST)
+                       digitalWrite(dataPin, !!(val & (1 << i)));
+               else    
+                       digitalWrite(dataPin, !!(val & (1 << (7 - i))));
+                       
+               digitalWrite(clockPin, HIGH);
+               digitalWrite(clockPin, LOW);            
+       }
+}