Cleanup AVR project, add new empty stubs

Signed-off-by: Ralf Ramsauer <ralf@binary-kitchen.de>
This commit is contained in:
Ralf Ramsauer 2018-09-01 23:07:13 +02:00
parent af7b71304b
commit bd63a57d31
5 changed files with 209 additions and 854 deletions

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@ -1,608 +1,42 @@
# Hey Emacs, this is a -*- makefile -*-
#----------------------------------------------------------------------------
# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
# Doorlock AVR - The AVR part of doorlockd
#
# Released to the Public Domain
# Copyright (c) Binary Kitchen e.V., 2018
#
# Additional material for this makefile was written by:
# Peter Fleury
# Tim Henigan
# Colin O'Flynn
# Reiner Patommel
# Markus Pfaff
# Sander Pool
# Frederik Rouleau
# Carlos Lamas
# Authors:
# Ralf Ramsauer <ralf@binary-kitchen.de>
#
#----------------------------------------------------------------------------
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF.
#
# make extcoff = Convert ELF to AVR Extended COFF.
#
# make program = Download the hex file to the device, using avrdude.
# Please customize the avrdude settings below first!
#
# make debug = Start either simulavr or avarice as specified for debugging,
# with avr-gdb or avr-insight as the front end for debugging.
#
# make filename.s = Just compile filename.c into the assembler code only.
#
# make filename.i = Create a preprocessed source file for use in submitting
# bug reports to the GCC project.
#
# To rebuild project do "make clean" then "make all".
#----------------------------------------------------------------------------
# This work is licensed under the terms of the GNU GPL, version 2. See
# the COPYING file in the top-level directory.
# MCU name
MCU = attiny2313
TARGET = doorlock
MCU ?= attiny2313a
F_OSC ?= 4000000
UART_BAUD ?= 9600
AVRDUDE_MCU ?= t2313
# Processor frequency.
# This will define a symbol, F_CPU, in all source code files equal to the
# processor frequency. You can then use this symbol in your source code to
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
# Typical values are:
# F_CPU = 1000000
# F_CPU = 1843200
# F_CPU = 2000000
# F_CPU = 3686400
# F_CPU = 4000000
# F_CPU = 7372800
# F_CPU = 8000000
# F_CPU = 11059200
# F_CPU = 14745600
# F_CPU = 16000000
# F_CPU = 18432000
# F_CPU = 20000000
OBJS = main.o uart.o
F_CPU = 14745600
#F_CPU = 8000000
# Output format. (can be srec, ihex, binary)
FORMAT = ihex
# Target file name (without extension).
TARGET = main
# Object files directory
OBJDIR = obj
# List C source files here. (C dependencies are automatically generated.)
SRC = main.c uart.c
# List C++ source files here. (C dependencies are automatically generated.)
CPPSRC =
# List Assembler source files here.
# Make them always end in a capital .S. Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =
# Optimization level, can be [0, 1, 2, 3, s].
# 0 = turn off optimization. s = optimize for size.
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
OPT = s
# Debugging format.
# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
# AVR Studio 4.10 requires dwarf-2.
# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
DEBUG =
# List any extra directories to look for include files here.
# Each directory must be seperated by a space.
# Use forward slashes for directory separators.
# For a directory that has spaces, enclose it in quotes.
EXTRAINCDIRS =
# Compiler flag to set the C Standard level.
# c89 = "ANSI" C
# gnu89 = c89 plus GCC extensions
# c99 = ISO C99 standard (not yet fully implemented)
# gnu99 = c99 plus GCC extensions
CSTANDARD = -std=c11
# Place -D or -U options here for C sources
CDEFS = -DF_CPU=$(F_CPU)UL
# Place -D or -U options here for C++ sources
CPPDEFS = -DF_CPU=$(F_CPU)UL
#CPPDEFS += -D__STDC_LIMIT_MACROS
#CPPDEFS += -D__STDC_CONSTANT_MACROS
#---------------- Compiler Options C ----------------
# -g*: generate debugging information
# -O*: optimization level
# -f...: tuning, see GCC manual and avr-libc documentation
# -Wall...: warning level
# -Wa,...: tell GCC to pass this to the assembler.
# -adhlns...: create assembler listing
CFLAGS = -g$(DEBUG)
CFLAGS += $(CDEFS)
CFLAGS += -O$(OPT)
#CFLAGS += -mint8
#CFLAGS += -mshort-calls
CFLAGS += -funsigned-char
CFLAGS += -funsigned-bitfields
CFLAGS += -fpack-struct
CFLAGS += -fshort-enums
#CFLAGS += -fno-unit-at-a-time
CFLAGS += -Wall
CFLAGS += -Wstrict-prototypes
CFLAGS += -Wundef
#CFLAGS += -Wunreachable-code
#CFLAGS += -Wsign-compare
CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
CFLAGS += $(CSTANDARD)
#---------------- Compiler Options C++ ----------------
# -g*: generate debugging information
# -O*: optimization level
# -f...: tuning, see GCC manual and avr-libc documentation
# -Wall...: warning level
# -Wa,...: tell GCC to pass this to the assembler.
# -adhlns...: create assembler listing
CPPFLAGS = -g$(DEBUG)
CPPFLAGS += $(CPPDEFS)
CPPFLAGS += -O$(OPT)
#CPPFLAGS += -mint8
#CPPFLAGS += -mshort-calls
CPPFLAGS += -funsigned-char
CPPFLAGS += -funsigned-bitfields
CPPFLAGS += -fpack-struct
CPPFLAGS += -fshort-enums
CPPFLAGS += -fno-exceptions
#CPPFLAGS += -fno-unit-at-a-time
CPPFLAGS += -Wall
#CPPFLAGS += -Wstrict-prototypes
CFLAGS += -Wundef
#CPPFLAGS += -Wunreachable-code
#CPPFLAGS += -Wsign-compare
CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)
CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
#CPPFLAGS += $(CSTANDARD)
#---------------- Assembler Options ----------------
# -Wa,...: tell GCC to pass this to the assembler.
# -ahlms: create listing
# -gstabs: have the assembler create line number information; note that
# for use in COFF files, additional information about filenames
# and function names needs to be present in the assembler source
# files -- see avr-libc docs [FIXME: not yet described there]
ASFLAGS = -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs
#---------------- Library Options ----------------
# Minimalistic printf version
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
# Floating point printf version (requires MATH_LIB = -lm below)
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
# If this is left blank, then it will use the Standard printf version.
PRINTF_LIB =
#PRINTF_LIB = $(PRINTF_LIB_MIN)
#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
# Minimalistic scanf version
SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
# If this is left blank, then it will use the Standard scanf version.
SCANF_LIB =
#SCANF_LIB = $(SCANF_LIB_MIN)
#SCANF_LIB = $(SCANF_LIB_FLOAT)
MATH_LIB = -lm
#---------------- External Memory Options ----------------
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# used for variables (.data/.bss) and heap (malloc()).
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# only used for heap (malloc()).
#EXTMEMOPTS = -Wl,--defsym=__heap_start=0x801100,--defsym=__heap_end=0x80ffff
EXTMEMOPTS =
#---------------- Linker Options ----------------
# -Wl,...: tell GCC to pass this to linker.
# -Map: create map file
# --cref: add cross reference to map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
LDFLAGS += $(EXTMEMOPTS)
LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
#LDFLAGS += -T linker_script.x
#---------------- Programming Options (avrdude) ----------------
# Programming hardware: alf avr910 avrisp bascom bsd
# dt006 pavr picoweb pony-stk200 sp12 stk200 stk500
#
# Type: avrdude -c ?
# to get a full listing.
#
AVRDUDE_PROGRAMMER = avr910
# com1 = serial port. Use lpt1 to connect to parallel port.
AVRDUDE_PORT = /dev/ttyUSB0 # programmer connected to serial device
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y
# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V
# Increase verbosity level. Please use this when submitting bug
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v
AVRDUDE_FLAGS = -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
#---------------- Debugging Options ----------------
# For simulavr only - target MCU frequency.
DEBUG_MFREQ = $(F_CPU)
# Set the DEBUG_UI to either gdb or insight.
# DEBUG_UI = gdb
DEBUG_UI = insight
# Set the debugging back-end to either avarice, simulavr.
DEBUG_BACKEND = avarice
#DEBUG_BACKEND = simulavr
# GDB Init Filename.
GDBINIT_FILE = __avr_gdbinit
# When using avarice settings for the JTAG
JTAG_DEV = /dev/com1
# Debugging port used to communicate between GDB / avarice / simulavr.
DEBUG_PORT = 4242
# Debugging host used to communicate between GDB / avarice / simulavr, normally
# just set to localhost unless doing some sort of crazy debugging when
# avarice is running on a different computer.
DEBUG_HOST = localhost
#============================================================================
# Define programs and commands.
SHELL = sh
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
NM = avr-nm
AVRDUDE = avrdude
REMOVE = rm -f
REMOVEDIR = rm -rf
COPY = cp
WINSHELL = cmd
CFLAGS := -g -O2 -mmcu=$(MCU)
CFLAGS += -Wall -Wextra -Wstrict-prototypes
CFLAGS += -DF_OSC=$(F_OSC) -DF_CPU=F_OSC -DUART_BAUD=$(UART_BAUD)UL -DMCU=$(MCU)
# Define Messages
# English
MSG_ERRORS_NONE = Errors: none
MSG_BEGIN = -------- begin --------
MSG_END = -------- end --------
MSG_SIZE_BEFORE = Size before:
MSG_SIZE_AFTER = Size after:
MSG_COFF = Converting to AVR COFF:
MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
MSG_FLASH = Creating load file for Flash:
MSG_EEPROM = Creating load file for EEPROM:
MSG_EXTENDED_LISTING = Creating Extended Listing:
MSG_SYMBOL_TABLE = Creating Symbol Table:
MSG_LINKING = Linking:
MSG_COMPILING = Compiling C:
MSG_COMPILING_CPP = Compiling C++:
MSG_ASSEMBLING = Assembling:
MSG_CLEANING = Cleaning project:
MSG_CREATING_LIBRARY = Creating library:
# Define all object files.
OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
# Define all listing files.
LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
# Compiler flags to generate dependency files.
GENDEPFLAGS = -MD -MP -MF .dep/$(@F).d
# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
# Default target.
all: begin gccversion sizebefore build sizeafter end
# Change the build target to build a HEX file or a library.
build: elf hex eep lss sym
#build: lib
elf: $(TARGET).elf
hex: $(TARGET).hex
eep: $(TARGET).eep
lss: $(TARGET).lss
sym: $(TARGET).sym
LIBNAME=lib$(TARGET).a
lib: $(LIBNAME)
# Eye candy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
begin:
@echo
@echo $(MSG_BEGIN)
end:
@echo $(MSG_END)
@echo
# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
ELFSIZE = $(SIZE) -A $(TARGET).elf
AVRMEM = avr-mem.sh $(TARGET).elf $(MCU)
sizebefore:
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
$(AVRMEM) 2>/dev/null; echo; fi
sizeafter:
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
$(AVRMEM) 2>/dev/null; echo; fi
# Display compiler version information.
gccversion :
@$(CC) --version
# Program the device.
program: $(TARGET).hex $(TARGET).eep
$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM)
# Generate avr-gdb config/init file which does the following:
# define the reset signal, load the target file, connect to target, and set
# a breakpoint at main().
gdb-config:
@$(REMOVE) $(GDBINIT_FILE)
@echo define reset >> $(GDBINIT_FILE)
@echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
@echo end >> $(GDBINIT_FILE)
@echo file $(TARGET).elf >> $(GDBINIT_FILE)
@echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE)
ifeq ($(DEBUG_BACKEND),simulavr)
@echo load >> $(GDBINIT_FILE)
endif
@echo break main >> $(GDBINIT_FILE)
debug: gdb-config $(TARGET).elf
ifeq ($(DEBUG_BACKEND), avarice)
@echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
@$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
$(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
@$(WINSHELL) /c pause
else
@$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
$(DEBUG_MFREQ) --port $(DEBUG_PORT)
endif
@$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT = $(OBJCOPY) --debugging
COFFCONVERT += --change-section-address .data-0x800000
COFFCONVERT += --change-section-address .bss-0x800000
COFFCONVERT += --change-section-address .noinit-0x800000
COFFCONVERT += --change-section-address .eeprom-0x810000
coff: $(TARGET).elf
@echo
@echo $(MSG_COFF) $(TARGET).cof
$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
extcoff: $(TARGET).elf
@echo
@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
@echo
@echo $(MSG_FLASH) $@
$(OBJCOPY) -O $(FORMAT) -R .eeprom $< $@
%.eep: %.elf
@echo
@echo $(MSG_EEPROM) $@
-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 -O $(FORMAT) $< $@
# Create extended listing file from ELF output file.
%.lss: %.elf
@echo
@echo $(MSG_EXTENDED_LISTING) $@
$(OBJDUMP) -h -S $< > $@
# Create a symbol table from ELF output file.
%.sym: %.elf
@echo
@echo $(MSG_SYMBOL_TABLE) $@
$(NM) -n $< > $@
# Create library from object files.
.SECONDARY : $(TARGET).a
.PRECIOUS : $(OBJ)
%.a: $(OBJ)
@echo
@echo $(MSG_CREATING_LIBRARY) $@
$(AR) $@ $(OBJ)
# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(OBJ)
%.elf: $(OBJ)
@echo
@echo $(MSG_LINKING) $@
$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
# Compile: create object files from C source files.
$(OBJDIR)/%.o : %.c
@echo
@echo $(MSG_COMPILING) $<
$(CC) -c $(ALL_CFLAGS) $< -o $@
# Compile: create object files from C++ source files.
$(OBJDIR)/%.o : %.cpp
@echo
@echo $(MSG_COMPILING_CPP) $<
$(CC) -c $(ALL_CPPFLAGS) $< -o $@
# Compile: create assembler files from C source files.
%.s : %.c
$(CC) -S $(ALL_CFLAGS) $< -o $@
# Compile: create assembler files from C++ source files.
%.s : %.cpp
$(CC) -S $(ALL_CPPFLAGS) $< -o $@
# Assemble: create object files from assembler source files.
$(OBJDIR)/%.o : %.S
@echo
@echo $(MSG_ASSEMBLING) $<
$(CC) -c $(ALL_ASFLAGS) $< -o $@
# Create preprocessed source for use in sending a bug report.
%.i : %.c
$(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
# Target: clean project.
clean: begin clean_list end
clean_list :
@echo
@echo $(MSG_CLEANING)
$(REMOVE) $(TARGET).hex
$(REMOVE) $(TARGET).eep
$(REMOVE) $(TARGET).cof
$(REMOVE) $(TARGET).elf
$(REMOVE) $(TARGET).map
$(REMOVE) $(TARGET).sym
$(REMOVE) $(TARGET).lss
$(REMOVEDIR) $(OBJDIR)
$(REMOVE) $(SRC:.c=.s)
$(REMOVE) $(SRC:.c=.d)
$(REMOVEDIR) .dep
# Create object files directory
$(shell mkdir $(OBJDIR) 2>/dev/null)
# Include the dependency files.
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion \
build elf hex eep lss sym coff extcoff \
clean clean_list program debug gdb-config
all: $(TARGET).hex
$(TARGET).elf: $(OBJS)
$(CC) $(CFLAGS) -o $(TARGET).elf $^
$(TARGET).hex: $(TARGET).elf
$(OBJCOPY) -O ihex -R .eeprom $^ $@
program: $(TARGET).hex
$(AVRDUDE) -p $(AVRDUDE_MCU) -P usb -c avrispmkII -U flash:w:$^
clean:
rm -f $(OBJS)
rm -f $(TARGET).elf $(TARGET).hex

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@ -1,106 +0,0 @@
#ifndef IO_H
#define IO_H
#include <stdbool.h>
#include <avr/io.h>
/*
* Macros
*/
#define PIN(x) (*(&x - 2)) // Address Of Data Direction Register Of Port x
#define DDR(x) (*(&x - 1)) // Address Of Input Register Of Port x
/*
* Outputs
*/
#define PORT_BOLZEN PORTB
#define PIN_BOLZEN PB0
#define PORT_SCHNAPPER PORTB
#define PIN_SCHNAPPER PB1
#define PORT_STATUS PORTB
#define PIN_STATUS PB2
/*
* Inputs
*/
#define PORT_BUTTON_LOCK PORTD
#define PIN_BUTTON_LOCK PD2
#define PORT_BUTTON_UNLOCK PORTD
#define PIN_BUTTON_UNLOCK PD3
#define PORT_EMERGENCY_UNLOCK PORTD
#define PIN_EMERGENCY_UNLOCK PD4
static inline bool is_emergency_unlock(void)
{
return !(PIN(PORT_EMERGENCY_UNLOCK) & (1<<PIN_EMERGENCY_UNLOCK));
}
static inline bool is_button_unlock(void)
{
return !(PIN(PORT_BUTTON_UNLOCK) & (1<<PIN_BUTTON_UNLOCK));
}
static inline bool is_button_lock(void)
{
return !(PIN(PORT_BUTTON_LOCK) & (1<<PIN_BUTTON_LOCK));
}
static inline void schnapper_off(void)
{
PORT_SCHNAPPER &= ~(1<<PIN_SCHNAPPER);
}
static inline void schnapper_on(void)
{
PORT_SCHNAPPER |= (1<<PIN_SCHNAPPER);
}
static inline void bolzen_off(void)
{
PORT_BOLZEN &= ~(1<<PIN_BOLZEN);
}
static inline void bolzen_on(void)
{
PORT_BOLZEN |= (1<<PIN_BOLZEN);
}
static inline void status_off(void)
{
PORT_STATUS &= ~(1<<PIN_STATUS);
}
static inline void status_on(void)
{
PORT_STATUS |= (1<<PIN_STATUS);
}
static inline void io_init(void)
{
// Set output directions
DDR(PORT_SCHNAPPER) |= (1<<PIN_SCHNAPPER);
schnapper_off();
DDR(PORT_SCHNAPPER) |= (1<<PIN_BOLZEN);
bolzen_off();
DDR(PORT_STATUS) |= (1<<PIN_STATUS);
status_off();
// Set input directions and activate pull-ups
DDR(PORT_BUTTON_UNLOCK) &= ~(1<<PIN_BUTTON_UNLOCK);
PORT_BUTTON_UNLOCK |= (1<<PIN_BUTTON_UNLOCK);
DDR(PORT_BUTTON_LOCK) &= ~(1<<PIN_BUTTON_LOCK);
PORT_BUTTON_LOCK |= (1<<PIN_BUTTON_LOCK);
DDR(PORT_EMERGENCY_UNLOCK) &= ~(1<<PIN_EMERGENCY_UNLOCK);
PORT_EMERGENCY_UNLOCK |= (1<<PIN_EMERGENCY_UNLOCK);
}
#endif

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@ -1,30 +1,43 @@
/* 2015, Ralf Ramsauer
* ralf@binary-kitchen.de
/*
* doorlock-avr, AVR code of Binary Kitchen's doorlock
*
* Copyright (c) Binary Kitchen, 2018
*
* Authors:
* Ralf Ramsauer <ralf@binary-kitchen.de>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*/
#include <stdbool.h>
#include "uart.h"
#include <stdbool.h>
#include <avr/io.h>
#include <avr/interrupt.h>
#include <util/delay.h>
#include "io.h"
#include "uart.h"
#define RED 0x1
#define GREEN 0x2
#define YELLOW 0x4
#include "../doorcmds.h"
#define SET_CONDITIONAL(predicate, port, pin) \
if ((predicate)) \
port |= (1 << pin); \
else \
port &= ~(1 << pin);
static volatile enum {LOCKED, UNLOCKED} state = LOCKED;
static volatile bool schnapper = false;
/* can either be red, green, or yellow */
static unsigned char state;
static inline void timer_init(void)
static inline void set_schnapper(bool state)
{
// Config the timer
// The 16bit Timer1 is used for resetting the lock state,
// if the UART stops receiving the unlock command
TIMSK |= (1<<TOIE1);
TIFR |= (1<<TOV1);
TCCR1A = 0;
TCCR1B = (1<<CS12);
SET_CONDITIONAL(state, PORTB, PB0);
}
static inline void set_bolzen(bool state)
{
SET_CONDITIONAL(state, PORTB, PB1);
}
static inline void reset_timeout(void)
@ -32,155 +45,159 @@ static inline void reset_timeout(void)
TCNT1 = 0;
}
static inline void extint_init(void)
static void set_leds(void)
{
// Configure external interrupts
// External interrupts are used for Button Unlock an Lock
MCUCR = (1<<ISC11)|(1<<ISC01);
GIMSK |= (1<<INT0)|(1<<INT1);
}
static unsigned int counter = 0;
bool pwm_cycle = ++counter % 20;
void uart_handler(const unsigned char c)
{
char retval = c;
switch ((char)c) {
case DOOR_CMD_UNLOCK:
state = UNLOCKED;
reset_timeout();
break;
case DOOR_CMD_LOCK:
state = LOCKED;
break;
case DOOR_CMD_PING:
break;
case DOOR_CMD_SCHNAPER:
if (state == UNLOCKED)
schnapper = true;
else
retval = '?';
break;
case DOOR_CMD_STATUS:
retval = (state == LOCKED) ? 'l' : 'u';
break;
default:
retval = '?';
break;
if (pwm_cycle) {
PORTD &= ~((1 << PD5) | (1 << PD6));
PORTB &= ~(1 << PB4);
}
uart_putc(retval);
switch (state) {
case RED:
PORTD |= (1 << PD5);
break;
case YELLOW:
PORTD |= (1 << PD6);
break;
case GREEN:
PORTB |= (1 << PB4);
break;
}
if (pwm_cycle)
return;
switch (state) {
case RED:
PORTD ^= (1 << PD6);
PORTB ^= (1 << PB4);
break;
case YELLOW:
PORTD ^= (1 << PD5);
PORTB ^= (1 << PB4);
break;
case GREEN:
PORTD ^= (1 << PD5);
PORTD ^= (1 << PD6);
break;
}
}
static void update_state(unsigned char new_state)
{
reset_timeout();
if (new_state == state)
return;
state = new_state;
switch (state) {
case RED:
set_bolzen(false);
set_schnapper(false);
uart_putc('r');
break;
case YELLOW:
set_bolzen(true);
set_schnapper(false);
uart_putc('y');
break;
case GREEN:
set_bolzen(true);
set_schnapper(true);
uart_putc('g');
break;
}
}
ISR(USART_RX_vect)
{
unsigned char c = UDR;
bool respond = true;
switch (c) {
case 'r':
update_state(RED);
break;
case 'y':
update_state(YELLOW);
break;
case 'g':
update_state(GREEN);
break;
default:
respond = false;
break;
}
if (respond)
uart_putc(c);
}
// Timeroverflow interrupts occurs each 1.137 seconds
// UART receive interrupts is used to prevent timer overflows
ISR(TIMER1_OVF_vect)
{
state = LOCKED;
reset_timeout();
update_state(RED);
}
// Button Lock
ISR(INT0_vect)
static inline void timer_init(void)
{
cli();
// This code is used to prevent spurious interrupts
_delay_ms(50);
if (!is_button_lock())
goto out;
uart_putc(DOOR_BUTTON_LOCK);
state = LOCKED;
out:
sei();
TIMSK |= (1 << TOIE1);
TIFR |= (1 << TOV1);
TCCR1A = 0;
TCCR1B = (1 << CS12);
}
// Button Unlock
ISR(INT1_vect)
static inline void setup_ports(void)
{
cli();
PORTB = 0;
DDRB = (1 << PB4) | (1 << PB1) | (1 << PB0);
// This code is used to prevent spurious interrupts
_delay_ms(50);
if (!is_button_unlock())
goto out;
PORTD = 0;
DDRD = (1 << PD5) | (1 << PD6);
}
uart_putc(DOOR_BUTTON_UNLOCK);
static unsigned char get_keys(void)
{
unsigned char ret = 0;
if (state == LOCKED) {
bolzen_off();
_delay_ms(3000);
}
if (!(PIND & (1 << PD2))) ret |= RED;
if (!(PIND & (1 << PD3))) ret |= YELLOW;
if (!(PIND & (1 << PD4))) ret |= GREEN;
out:
sei();
return ret;
}
int main(void)
{
// Disable all interrupts
cli();
// Init IO
io_init();
unsigned char i;
// Wait a bit to settle down
_delay_ms(1000);
// Init Uart
uart_init();
uart_set_recv_handler(uart_handler);
// Init Timer
setup_ports();
timer_init();
uart_init();
update_state(RED);
reset_timeout();
// Init external interrupts
extint_init();
// Enable all interrupts
sei();
for(;;) {
if (state == LOCKED) {
bolzen_on();
status_off();
schnapper = false;
// Check if someone used the emergency unlock
if (is_emergency_unlock()) {
// If so, wait 200ms and double check
_delay_ms(200);
if (is_emergency_unlock()) {
uart_putc(DOOR_EMERGENCY_UNLOCK);
cli();
bolzen_off();
schnapper_on();
_delay_ms(3000);
schnapper_off();
bolzen_on();
sei();
}
}
} else if (state == UNLOCKED) {
bolzen_off();
status_on();
if (schnapper == true) {
schnapper = false;
schnapper_on();
_delay_ms(2000);
schnapper_off();
}
for (;;) {
i = get_keys();
if (i & GREEN) {
uart_putc('G');
update_state(GREEN);
} else if (i & YELLOW) {
uart_putc('Y');
update_state(YELLOW);
} else if (i & RED) {
uart_putc('R');
update_state(RED);
}
while (get_keys())
reset_timeout();
set_leds();
}
return 0;
}

View File

@ -1,27 +1,32 @@
/*
* doorlock-avr, AVR code of Binary Kitchen's doorlock
*
* Copyright (c) Binary Kitchen, 2018
*
* Authors:
* Ralf Ramsauer <ralf@binary-kitchen.de>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*/
#include <stddef.h>
#include <avr/interrupt.h>
#include <avr/io.h>
#include "uart.h"
#define UBRR_VAL ((F_CPU+BAUD*8)/(BAUD*16)-1)
#define BAUD_REAL (F_CPU/(16*(UBRR_VAL+1)))
#define BAUD_ERROR ((BAUD_REAL*1000)/BAUD)
#if ((BAUD_ERROR<990) || (BAUD_ERROR>1010))
#define UBRR_VAL ((F_OSC+UART_BAUD*8)/(UART_BAUD*16)-1)
#define BAUD_REAL (F_OSC/(16*(UBRR_VAL+1)))
#define BAUD_ERROR ((BAUD_REAL*1000)/UART_BAUD)
#if ((BAUD_ERROR<985) || (BAUD_ERROR>1010))
#warn BAUD_ERROR
#error Choose another crystal. Baud error too high.
#endif
static void (*recv_handler)(unsigned char c) = NULL;
ISR(USART_RX_vect)
{
cli();
if(recv_handler)
recv_handler(UDR);
sei();
}
void uart_init()
{
// Enable receive and transmit
@ -31,7 +36,7 @@ void uart_init()
UCSRC = (1<<UCSZ1)|(1<<UCSZ0);
UBRRH = UBRR_VAL >> 8;
UBRRL = UBRR_VAL & 0xFF;
UBRRL = UBRR_VAL & 0xFF;
}
void uart_set_recv_handler(void (*handler)(unsigned char c))

View File

@ -1,7 +1,14 @@
#ifndef UART_H
#define UART_H
#define BAUD 9600UL
/*
* doorlock-avr, AVR code of Binary Kitchen's doorlock
*
* Copyright (c) Binary Kitchen, 2018
*
* Authors:
* Ralf Ramsauer <ralf@binary-kitchen.de>
*
* This work is licensed under the terms of the GNU GPL, version 2. See
* the COPYING file in the top-level directory.
*/
void uart_set_recv_handler(void (*handler)(unsigned char c));
@ -9,5 +16,3 @@ void uart_init(void);
void uart_putc(const char c);
void uart_puts(const char* str);
#endif