From 0887b98f627500271b5ad8b3c4f6c7b90bc227ee Mon Sep 17 00:00:00 2001 From: Thibaut VIARD Date: Tue, 21 Jun 2011 00:20:43 +0200 Subject: Moving all AVR specific libraries to hardware/avr --- libraries/SoftwareSerial/icrmacros.h | 69 ++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100755 libraries/SoftwareSerial/icrmacros.h (limited to 'libraries/SoftwareSerial/icrmacros.h') diff --git a/libraries/SoftwareSerial/icrmacros.h b/libraries/SoftwareSerial/icrmacros.h new file mode 100755 index 0000000..936eae8 --- /dev/null +++ b/libraries/SoftwareSerial/icrmacros.h @@ -0,0 +1,69 @@ +/* +icrmacros.h + +A place to put useful ICR (interrupt change register) macros + +If you want to support non-Arduino processors you can extend or replace +this file. + +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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + +The latest version of this library can always be found at +http://arduiniana.org. +*/ + +// Abstractions for maximum portability between processors +// These are macros to associate pins to pin change interrupts +#if !defined(digitalPinToPCICR) // Courtesy Paul Stoffregen + +#if defined(__AVR_ATmega168__) || defined(__AVR_ATmega328P__) + +#define digitalPinToPCICR(p) (((p) >= 0 && (p) <= 21) ? (&PCICR) : ((uint8_t *)0)) +#define digitalPinToPCICRbit(p) (((p) <= 7) ? 2 : (((p) <= 13) ? 0 : 1)) +#define digitalPinToPCMSK(p) (((p) <= 7) ? (&PCMSK2) : (((p) <= 13) ? (&PCMSK0) : (((p) <= 21) ? (&PCMSK1) : ((uint8_t *)0)))) +#define digitalPinToPCMSKbit(p) (((p) <= 7) ? (p) : (((p) <= 13) ? ((p) - 8) : ((p) - 14))) + +#elif defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__) +// Specifically for the Arduino Mega 2560 (or 1280 on the original Arduino Mega) +// A majority of the pins are NOT PCINTs, SO BE WARNED (i.e. you cannot use them as receive pins) +// Only pins available for RECEIVE (TRANSMIT can be on any pin): +// (I've deliberately left out pin mapping to the Hardware USARTs - seems senseless to me) +// Pins: 10, 11, 12, 13, 50, 51, 52, 53, 62, 63, 64, 65, 66, 67, 68, 69 + +#define digitalPinToPCICR(p) ( (((p) >= 10) && ((p) <= 13)) || \ + (((p) >= 50) && ((p) <= 53)) || \ + (((p) >= 62) && ((p) <= 69)) ? (&PCICR) : ((uint8_t *)0) ) + +#define digitalPinToPCICRbit(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? 0 : \ + ( (((p) >= 62) && ((p) <= 69)) ? 2 : \ + 0 ) ) + +#define digitalPinToPCMSK(p) ( (((p) >= 10) && ((p) <= 13)) || (((p) >= 50) && ((p) <= 53)) ? (&PCMSK0) : \ + ( (((p) >= 62) && ((p) <= 69)) ? (&PCMSK2) : \ + ((uint8_t *)0) ) ) + +#define digitalPinToPCMSKbit(p) ( (((p) >= 10) && ((p) <= 13)) ? ((p) - 6) : \ + ( ((p) == 50) ? 3 : \ + ( ((p) == 51) ? 2 : \ + ( ((p) == 52) ? 1 : \ + ( ((p) == 53) ? 0 : \ + ( (((p) >= 62) && ((p) <= 69)) ? ((p) - 62) : \ + 0 ) ) ) ) ) ) + +#else +#error This processor is not supported by SoftwareSerial +#endif +#endif + -- cgit v1.2.3-18-g5258