/* * par_low.h - low_level routines to access amiga parallel port * * Written by * Christian Vogelgsang * * This file is part of plipbox. * See README for copyright notice. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program 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 General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA * 02111-1307 USA. * */ #ifndef PAR_LOW_H #define PAR_LOW_H #include "global.h" #include #ifdef HAVE_arduino /* Parallel Port Connection Arduino Nano DATA 0 ... 5 PC 0 ... 5 same IN/OUT DATA 6 ... 7 PD 6 ... 7 same IN/OUT /STROBE PD 2 PD3 IN (INT0 / INT1) SELECT PD 3 PB1 IN BUSY PD 4 same OUT POUT PD 5 same IN /ACK PB 0 same OUT */ // lower bits of data #define PAR_DATA_LO_MASK 0x3f #define PAR_DATA_LO_PORT PORTC #define PAR_DATA_LO_PIN PINC #define PAR_DATA_LO_DDR DDRC // high bits of data #define PAR_DATA_HI_MASK 0xc0 #define PAR_DATA_HI_PORT PORTD #define PAR_DATA_HI_PIN PIND #define PAR_DATA_HI_DDR DDRD #ifdef HAVE_nano // /STROBE (IN) (INT1) (D3) #define PAR_STROBE_BIT 3 #define PAR_STROBE_MASK _BV(PAR_STROBE_BIT) #define PAR_STROBE_PORT PORTD #define PAR_STROBE_PIN PIND #define PAR_STROBE_DDR DDRD #else // /STROBE (IN) (INT0) (D2) #define PAR_STROBE_BIT 2 #define PAR_STROBE_MASK _BV(PAR_STROBE_BIT) #define PAR_STROBE_PORT PORTD #define PAR_STROBE_PIN PIND #define PAR_STROBE_DDR DDRD #endif #ifdef HAVE_nano // SELECT (IN) (D9) #define PAR_SELECT_BIT 1 #define PAR_SELECT_MASK _BV(PAR_SELECT_BIT) #define PAR_SELECT_PORT PORTB #define PAR_SELECT_PIN PINB #define PAR_SELECT_DDR DDRB #else // SELECT (IN) (D3) #define PAR_SELECT_BIT 3 #define PAR_SELECT_MASK _BV(PAR_SELECT_BIT) #define PAR_SELECT_PORT PORTD #define PAR_SELECT_PIN PIND #define PAR_SELECT_DDR DDRD #endif // BUSY (OUT) (D4) #define PAR_BUSY_BIT 4 #define PAR_BUSY_MASK _BV(PAR_BUSY_BIT) #define PAR_BUSY_PORT PORTD #define PAR_BUSY_PIN PIND #define PAR_BUSY_DDR DDRD // POUT (IN) (D5) #define PAR_POUT_BIT 5 #define PAR_POUT_MASK _BV(PAR_POUT_BIT) #define PAR_POUT_PORT PORTD #define PAR_POUT_PIN PIND #define PAR_POUT_DDR DDRD // /ACK (OUT) (D8) #define PAR_ACK_BIT 0 #define PAR_ACK_MASK _BV(PAR_ACK_BIT) #define PAR_ACK_PORT PORTB #define PAR_ACK_PIN PINB #define PAR_ACK_DDR DDRB #else #ifdef HAVE_avrnetio /* Parallel Port Connection (AVR Net IO board) AVR DATA 0 ... 7 PC 0 ... 7 IN/OUT /STROBE PD 2 IN (INT0) SELECT PA 3 IN POUT PA 2 IN BUSY PA 1 OUT /ACK PA 0 OUT */ // lower bits of data #define PAR_DATA_PORT PORTC #define PAR_DATA_PIN PINC #define PAR_DATA_DDR DDRC // /STROBE (IN) (INT0) #define PAR_STROBE_BIT 2 #define PAR_STROBE_MASK _BV(PAR_STROBE_BIT) #define PAR_STROBE_PORT PORTD #define PAR_STROBE_PIN PIND #define PAR_STROBE_DDR DDRD // SELECT (IN) (INT1) #define PAR_SELECT_BIT 3 #define PAR_SELECT_MASK _BV(PAR_SELECT_BIT) #define PAR_SELECT_PORT PORTA #define PAR_SELECT_PIN PINA #define PAR_SELECT_DDR DDRA // POUT (IN) #define PAR_POUT_BIT 2 #define PAR_POUT_MASK _BV(PAR_POUT_BIT) #define PAR_POUT_PORT PORTA #define PAR_POUT_PIN PINA #define PAR_POUT_DDR DDRA // BUSY (OUT) #define PAR_BUSY_BIT 1 #define PAR_BUSY_MASK _BV(PAR_BUSY_BIT) #define PAR_BUSY_PORT PORTA #define PAR_BUSY_PIN PINA #define PAR_BUSY_DDR DDRA // /ACK (OUT) #define PAR_ACK_BIT 0 #define PAR_ACK_MASK _BV(PAR_ACK_BIT) #define PAR_ACK_PORT PORTA #define PAR_ACK_PIN PINA #define PAR_ACK_DDR DDRA #else #error "Unknwon Board" #endif #endif // ----- Input Buffer Handling ----- #define PAR_IN_BUF_BITS 4 #define PAR_IN_BUF_SIZE (1 << PAR_IN_BUF_BITS) #define PAR_IN_BUF_MASK (PAR_IN_BUF_SIZE - 1) // ----- Functions ----- extern void par_low_init(void); // ----- Data Bus ----- extern void par_low_data_set_output(void); extern void par_low_data_set_input(void); #ifdef HAVE_arduino inline void par_low_data_out(u08 d) { PAR_DATA_LO_PORT = (d & PAR_DATA_LO_MASK) | (PAR_DATA_LO_PIN & ~PAR_DATA_LO_MASK); PAR_DATA_HI_PORT = (d & PAR_DATA_HI_MASK) | (PAR_DATA_HI_PIN & ~PAR_DATA_HI_MASK); } inline u08 par_low_data_in(void) { u08 d1 = PAR_DATA_LO_PIN & PAR_DATA_LO_MASK; u08 d2 = PAR_DATA_HI_PIN & PAR_DATA_HI_MASK; return d1 | d2; } #else #ifdef HAVE_avrnetio inline void par_low_data_out(u08 d) { PAR_DATA_PORT = d; } inline u08 par_low_data_in(void) { return PAR_DATA_PIN; } #endif #endif // ----- Signals ----- // /ACK (OUT) inline void par_low_set_ack_lo(void) { PAR_ACK_PORT &= ~PAR_ACK_MASK; } inline void par_low_set_ack_hi(void) { PAR_ACK_PORT |= PAR_ACK_MASK; } extern void par_low_pulse_ack(u08 delay); // BUSY (OUT) inline void par_low_set_busy_lo(void) { PAR_BUSY_PORT &= ~PAR_BUSY_MASK; } inline void par_low_set_busy_hi(void) { PAR_BUSY_PORT |= PAR_BUSY_MASK; } // STROBE (IN) inline u08 par_low_get_strobe(void) { return (PAR_STROBE_PIN & PAR_STROBE_MASK) == PAR_STROBE_MASK; } // SELECT (IN) inline u08 par_low_get_select(void) { return (PAR_SELECT_PIN & PAR_SELECT_MASK) == PAR_SELECT_MASK; } // POUT (IN) inline u08 par_low_get_pout(void) { return (PAR_POUT_PIN & PAR_POUT_MASK) == PAR_POUT_MASK; } #endif