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authorJack Humbert <jack.humb@gmail.com>2015-10-27 14:52:18 -0400
committerJack Humbert <jack.humb@gmail.com>2015-10-27 14:52:18 -0400
commitd311fd8d1a0af3b767d26b520d399bf0db22f058 (patch)
treeb9de5704143ac205b4e26222f9d7551e9b161924 /tmk_core/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c
parenta766918d5c48204375f4c207b30bbbf1389df14f (diff)
parent6f3141965e88c4ee0ebf7c18a243e4c2d9c5021b (diff)
Merge pull request #34 from jackhumbert/tmk-master
merging from tmk, new_project script and template
Diffstat (limited to 'tmk_core/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c')
-rw-r--r--tmk_core/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c55
1 files changed, 55 insertions, 0 deletions
diff --git a/tmk_core/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c b/tmk_core/protocol/usb_hid/arduino-1.0.1/cores/arduino/wiring_shift.c
new file mode 100644
index 0000000000..cfe786758c
--- /dev/null
+++ b/tmk_core/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);
+ }
+}