noisymime
/
ArduinoCore-avr
mirror of https://github.com/noisymime/ArduinoCore-avr.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

Re-arranging header files and small fixes to optimized core functions.

This commit is contained in:
David A. Mellis 2011-03-02 23:05:25 -05:00
parent 218eb5e807
commit d7a87f18f0
5 changed files with 69 additions and 83 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

70
cores/arduino/Arduino.h
View File

@ -112,6 +112,53 @@ void detachInterrupt(uint8_t);
void setup(void);
void loop(void);
// Get the bit location within the hardware port of the given virtual pin.
// This comes from the pins_*.c file for the active board configuration.
#define analogInPinToBit(P) (P)
INLINED uint8_t digitalPinToPort(uint8_t pin) {
if (__builtin_constant_p(pin))
return inlined_digitalPinToPort(pin);
else
return pgm_read_byte( digital_pin_to_port_PGM + pin );
}
INLINED uint8_t digitalPinToBitMask(uint8_t pin) {
if (__builtin_constant_p(pin))
return inlined_digitalPinToBitMask(pin);
else
return pgm_read_byte( digital_pin_to_bit_mask_PGM + pin );
}
INLINED uint8_t digitalPinToTimer(uint8_t pin) {
if (__builtin_constant_p(pin))
return inlined_digitalPinToTimer(pin);
else
return pgm_read_byte( digital_pin_to_timer_PGM + pin );
}
INLINED volatile uint8_t *portOutputRegister(uint8_t index) {
if (__builtin_constant_p(index))
return inlined_portOutputRegister(index);
else
return (volatile uint8_t *)( pgm_read_word( port_to_output_PGM + index ) );
}
INLINED volatile uint8_t* portInputRegister(uint8_t index) {
if (__builtin_constant_p(index))
return inlined_portInputRegister(index);
else
return (volatile uint8_t *)( pgm_read_word( port_to_input_PGM + index) );
}
INLINED volatile uint8_t* portModeRegister(uint8_t index) {
if (__builtin_constant_p(index))
return inlined_portModeRegister(index);
else
return (volatile uint8_t *)( pgm_read_word( port_to_mode_PGM + index) );
}
/*
* Check if a given pin requires locking.
* When accessing lower 32 IO ports we can use SBI/CBI instructions, which are atomic. However
@ -127,6 +174,15 @@ INLINED int portWriteNeedsLocking(uint8_t pin)
return 0;
}
INLINED int portModeNeedsLocking(uint8_t pin)
{
/* SBI/CBI instructions only work on lower 32 IO ports */
if (inlined_portModeRegister(inlined_digitalPinToPort(pin)) > (volatile uint8_t*)&_SFR_IO8(0x1F)) {
return 1;
}
return 0;
}
/*
* These functions will perform OR/AND on a given register, and are atomic.
*/
@ -157,10 +213,18 @@ INLINED void digitalWrite(uint8_t pin, uint8_t value)
INLINED void pinMode(uint8_t pin, uint8_t mode)
{
if (__builtin_constant_p(pin)) {
if (mode==INPUT) {
*inlined_portModeRegister(inlined_digitalPinToPort(pin)) &= ~(inlined_digitalPinToBitMask(pin));
if (portModeNeedsLocking(pin)) {
if (mode==INPUT) {
__digitalWriteAND_locked(inlined_portModeRegister(inlined_digitalPinToPort(pin)),~inlined_digitalPinToBitMask(pin));
} else {
__digitalWriteOR_locked(inlined_portModeRegister(inlined_digitalPinToPort(pin)),inlined_digitalPinToBitMask(pin));
}
} else {
*inlined_portModeRegister(inlined_digitalPinToPort(pin)) |= inlined_digitalPinToBitMask(pin);
if (mode==INPUT) {
*inlined_portModeRegister(inlined_digitalPinToPort(pin)) &= ~(inlined_digitalPinToBitMask(pin));
} else {
*inlined_portModeRegister(inlined_digitalPinToPort(pin)) |= inlined_digitalPinToBitMask(pin);
}
}
} else {
pinMode_lookup(pin,mode);

1
cores/arduino/WConstants.h
View File

@ -1 +0,0 @@
#include "wiring.h"

1
cores/arduino/WInterrupts.c
View File

@ -30,7 +30,6 @@
#include <avr/pgmspace.h>
#include <stdio.h>
#include "WConstants.h"
#include "wiring_private.h"
volatile static voidFuncPtr intFunc[EXTERNAL_NUM_INTERRUPTS];

51
cores/arduino/pins_arduino.h
View File

@ -385,7 +385,7 @@ INLINED uint8_t inlined_digitalPinToTimer(uint8_t pin)
case 44: return TIMER5C; // PL 5 ** 44 ** D44
case 45: return TIMER5B; // PL 4 ** 45 ** D45
case 46: return TIMER5A; // PL 3 ** 46 ** D46
default: invalidPinSpecified();
default: return NOT_ON_TIMER;
}
}
@ -494,57 +494,10 @@ INLINED uint8_t inlined_digitalPinToTimer(uint8_t pin)
#endif
case 9: return TIMER1A;
case 10: return TIMER1B;
default: invalidPinSpecified();
default: return NOT_ON_TIMER;
}
}
#endif // defined(__AVR_ATmega1280__) || defined(__AVR_ATmega2560__)
// Get the bit location within the hardware port of the given virtual pin.
// This comes from the pins_*.c file for the active board configuration.
#define analogInPinToBit(P) (P)
INLINED uint8_t digitalPinToPort(uint8_t pin) {
if (__builtin_constant_p(pin))
return inlined_digitalPinToPort(pin);
else
return pgm_read_byte( digital_pin_to_port_PGM + pin );
}
INLINED uint8_t digitalPinToBitMask(uint8_t pin) {
if (__builtin_constant_p(pin))
return inlined_digitalPinToBitMask(pin);
else
return pgm_read_byte( digital_pin_to_bit_mask_PGM + pin );
}
INLINED uint8_t digitalPinToTimer(uint8_t pin) {
if (__builtin_constant_p(pin))
return inlined_digitalPinToTimer(pin);
else
return pgm_read_byte( digital_pin_to_timer_PGM + pin );
}
INLINED volatile uint8_t *portOutputRegister(uint8_t index) {
if (__builtin_constant_p(index))
return inlined_portOutputRegister(index);
else
return (volatile uint8_t *)( pgm_read_word( port_to_output_PGM + index ) );
}
INLINED volatile uint8_t* portInputRegister(uint8_t index) {
if (__builtin_constant_p(index))
return inlined_portInputRegister(index);
else
return (volatile uint8_t *)( pgm_read_word( port_to_input_PGM + index) );
}
INLINED volatile uint8_t* portModeRegister(uint8_t index) {
if (__builtin_constant_p(index))
return inlined_portModeRegister(index);
else
return (volatile uint8_t *)( pgm_read_word( port_to_mode_PGM + index) );
}
#endif

29
cores/arduino/wiring.h
View File

@ -1,29 +0,0 @@
/*
wiring.h - Partial implementation of the Wiring API for the ATmega8.
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
$Id$
*/
#ifndef Wiring_h
#define Wiring_h
#endif