/* * pins.h * * Lightweight macro implementation of AVR pin numbering for * accessing Atmel digital and analog pins. * * pin_mode(A1, OUTPUT); * digital_write(A1, HIGH); * pin_mode(A2, INPUT); * digital_read(A2); * * This file is based on the excellent ArduinoLite project by * Shikai Chen . * * http://code.google.com/p/arduino-lite/ * http://www.csksoft.net/ * * This file is part of Triple-A library: * https://github.com/tuupola/triple-a * * Copyright (c) 2010-2011 Shikai Chen, Mika Tuupola * * Licensed under the LGPL 2.1 license: * http://www.opensource.org/licenses/lgpl-2.1.php */ #ifndef PINS_H #define PINS_H #include #include /* #include "arduino.h" */ #define HIGH 0x1 #define LOW 0x0 #define INPUT 0x0 #define OUTPUT 0x1 #define ENABLE 0x1 #define DISABLE 0x0 #define PIN_TO_PORT(x) PORT_AT_PIN_##x #define PIN_TO_MASK(x) MASK_AT_PIN_##x #define PORT_TO_DIRECTION_REGISTER(x) DIRECTION_REGISTER_AT_##x #define PORT_TO_OUTPUT_REGISTER(x) OUTPUT_REGISTER_AT_##x #define PORT_TO_INPUT_REGISTER(x) INPUT_REGISTER_AT_##x #ifdef PORTA #define DIRECTION_REGISTER_AT_PortA DDRA #define OUTPUT_REGISTER_AT_PortA PORTA #define INPUT_REGISTER_AT_PortA PINA #define PORT_AT_PIN_A0 PortA #define PORT_AT_PIN_A1 PortA #define PORT_AT_PIN_A2 PortA #define PORT_AT_PIN_A3 PortA #define PORT_AT_PIN_A4 PortA #define PORT_AT_PIN_A5 PortA #define PORT_AT_PIN_A6 PortA #define PORT_AT_PIN_A7 PortA #define MASK_AT_PIN_A0 _BV(0) #define MASK_AT_PIN_A1 _BV(1) #define MASK_AT_PIN_A2 _BV(2) #define MASK_AT_PIN_A3 _BV(3) #define MASK_AT_PIN_A4 _BV(4) #define MASK_AT_PIN_A5 _BV(5) #define MASK_AT_PIN_A6 _BV(6) #define MASK_AT_PIN_A7 _BV(7) #endif #ifdef PORTB #define DIRECTION_REGISTER_AT_PortB DDRB #define OUTPUT_REGISTER_AT_PortB PORTB #define INPUT_REGISTER_AT_PortB PINB #define PORT_AT_PIN_B0 PortB #define PORT_AT_PIN_B1 PortB #define PORT_AT_PIN_B2 PortB #define PORT_AT_PIN_B3 PortB #define PORT_AT_PIN_B4 PortB #define PORT_AT_PIN_B5 PortB #define PORT_AT_PIN_B6 PortB #define PORT_AT_PIN_B7 PortB #define MASK_AT_PIN_B0 _BV(0) #define MASK_AT_PIN_B1 _BV(1) #define MASK_AT_PIN_B2 _BV(2) #define MASK_AT_PIN_B3 _BV(3) #define MASK_AT_PIN_B4 _BV(4) #define MASK_AT_PIN_B5 _BV(5) #define MASK_AT_PIN_B6 _BV(6) #define MASK_AT_PIN_B7 _BV(7) #endif #ifdef PORTC #define DIRECTION_REGISTER_AT_PortC DDRC #define OUTPUT_REGISTER_AT_PortC PORTC #define INPUT_REGISTER_AT_PortC PINC #define PORT_AT_PIN_C0 PortC #define PORT_AT_PIN_C1 PortC #define PORT_AT_PIN_C2 PortC #define PORT_AT_PIN_C3 PortC #define PORT_AT_PIN_C4 PortC #define PORT_AT_PIN_C5 PortC #define PORT_AT_PIN_C6 PortC #define PORT_AT_PIN_C7 PortC #define MASK_AT_PIN_C0 _BV(0) #define MASK_AT_PIN_C1 _BV(1) #define MASK_AT_PIN_C2 _BV(2) #define MASK_AT_PIN_C3 _BV(3) #define MASK_AT_PIN_C4 _BV(4) #define MASK_AT_PIN_C5 _BV(5) #define MASK_AT_PIN_C6 _BV(6) #define MASK_AT_PIN_C7 _BV(7) #endif #ifdef PORTD #define DIRECTION_REGISTER_AT_PortD DDRD #define OUTPUT_REGISTER_AT_PortD PORTD #define INPUT_REGISTER_AT_PortD PIND #define PORT_AT_PIN_D0 PortD #define PORT_AT_PIN_D1 PortD #define PORT_AT_PIN_D2 PortD #define PORT_AT_PIN_D3 PortD #define PORT_AT_PIN_D4 PortD #define PORT_AT_PIN_D5 PortD #define PORT_AT_PIN_D6 PortD #define PORT_AT_PIN_D7 PortD #define MASK_AT_PIN_D0 _BV(0) #define MASK_AT_PIN_D1 _BV(1) #define MASK_AT_PIN_D2 _BV(2) #define MASK_AT_PIN_D3 _BV(3) #define MASK_AT_PIN_D4 _BV(4) #define MASK_AT_PIN_D5 _BV(5) #define MASK_AT_PIN_D6 _BV(6) #define MASK_AT_PIN_D7 _BV(7) #endif #ifdef PORTE #define DIRECTION_REGISTER_AT_PortE DDRE #define OUTPUT_REGISTER_AT_PortE PORTE #define INPUT_REGISTER_AT_PortE PINE #define PORT_AT_PIN_E0 PortE #define PORT_AT_PIN_E1 PortE #define PORT_AT_PIN_E2 PortE #define PORT_AT_PIN_E3 PortE #define PORT_AT_PIN_E4 PortE #define PORT_AT_PIN_E5 PortE #define PORT_AT_PIN_E6 PortE #define PORT_AT_PIN_E7 PortE #define MASK_AT_PIN_E0 _BV(0) #define MASK_AT_PIN_E1 _BV(1) #define MASK_AT_PIN_E2 _BV(2) #define MASK_AT_PIN_E3 _BV(3) #define MASK_AT_PIN_E4 _BV(4) #define MASK_AT_PIN_E5 _BV(5) #define MASK_AT_PIN_E6 _BV(6) #define MASK_AT_PIN_E7 _BV(7) #endif #ifdef PORTF #define DIRECTION_REGISTER_AT_PortF DDRF #define OUTPUT_REGISTER_AT_PortF PORTF #define INPUT_REGISTER_AT_PortF PINF #define PORT_AT_PIN_F0 PortF #define PORT_AT_PIN_F1 PortF #define PORT_AT_PIN_F2 PortF #define PORT_AT_PIN_F3 PortF #define PORT_AT_PIN_F4 PortF #define PORT_AT_PIN_F5 PortF #define PORT_AT_PIN_F6 PortF #define PORT_AT_PIN_F7 PortF #define MASK_AT_PIN_F0 _BV(0) #define MASK_AT_PIN_F1 _BV(1) #define MASK_AT_PIN_F2 _BV(2) #define MASK_AT_PIN_F3 _BV(3) #define MASK_AT_PIN_F4 _BV(4) #define MASK_AT_PIN_F5 _BV(5) #define MASK_AT_PIN_F6 _BV(6) #define MASK_AT_PIN_F7 _BV(7) #endif #define MERGE_TO_FUNC(prefix, id) prefix##_##id #define EXPAND_WRAPPER(NEXTLEVEL, ...) NEXTLEVEL(__VA_ARGS__) #define _SET_OUTPUT(port_id, msk) PORT_TO_DIRECTION_REGISTER(port_id) |= (msk) #define _SET_INPUT(port_id, msk) PORT_TO_DIRECTION_REGISTER(port_id) &= ~(msk) #define _DIGITAL_WRITE_HIGH(port_id, msk) PORT_TO_OUTPUT_REGISTER(port_id) |= (msk) #define _DIGITAL_WRITE_LOW(port_id, msk) PORT_TO_OUTPUT_REGISTER(port_id) &= ~(msk) #define _DIGITAL_READ_RAW(port_id, msk) ((PORT_TO_INPUT_REGISTER(port_id)) & (msk)) #define _DIGITAL_READ(port_id, msk) (((PORT_TO_INPUT_REGISTER(port_id)) & (msk)) != 0 ? 1 : 0) #define _DIGITAL_TOGGLE(port_id, msk) PORT_TO_OUTPUT_REGISTER(port_id) ^= (msk) #define SET_1(pin) SET_OUTPUT(pin) #define SET_0(pin) SET_INPUT(pin) #define SET_0x1(pin) SET_OUTPUT(pin) #define SET_0x0(pin) SET_INPUT(pin) #define DIGITAL_WRITE_HIGH(pin) EXPAND_WRAPPER(_DIGITAL_WRITE_HIGH, PIN_TO_PORT(pin), PIN_TO_MASK(pin)) #define DIGITAL_WRITE_LOW(pin) EXPAND_WRAPPER(_DIGITAL_WRITE_LOW, PIN_TO_PORT(pin), PIN_TO_MASK(pin)) #define DIGITAL_WRITE_1(pin) DIGITAL_WRITE_HIGH(pin) #define DIGITAL_WRITE_0(pin) DIGITAL_WRITE_LOW(pin) #define DIGITAL_WRITE_0x1(pin) DIGITAL_WRITE_HIGH(pin) #define DIGITAL_WRITE_0x0(pin) DIGITAL_WRITE_LOW(pin) #define DIGITAL_WRITE_ENABLE(pin) DIGITAL_WRITE_HIGH(pin) #define DIGITAL_WRITE_DISABLE(pin) DIGITAL_WRITE_LOW(pin) #define SET_OUTPUT(pin) EXPAND_WRAPPER(_SET_OUTPUT, PIN_TO_PORT(pin), PIN_TO_MASK(pin)) #define SET_INPUT(pin) EXPAND_WRAPPER(_SET_INPUT, PIN_TO_PORT(pin), PIN_TO_MASK(pin)) #define pin_mode(pin, mode) SET_##mode(pin) #define pin_pullup(pin, val) DIGITAL_WRITE_##val(pin) #endif /* PINS_H */