#
# Copyright 2015, Olivier MATZ <zer0@droids-corp.org>
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the University of California, Berkeley nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND ANY
# EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL THE REGENTS AND CONTRIBUTORS BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

# XXX
UCGINE ?= /home/zer0/projects/ucgine

MCU = atmega328p
F_CPU = 8000000UL
AVRDUDE_PORT = /dev/ttyUSB0
AVRDUDE_PROG = arduino
AVRDUDE_BAUD = 57600

O ?= $(CURDIR)/build

CROSS = avr-
ifneq ($(CROSS),avr-)
$(error AVR target only, cannot override CROSS)
endif

CFLAGS += -g -O2 -Wall
CFLAGS += -I$(UCGINE)/arch/avr/include
CFLAGS += -mmcu=$(MCU)
CFLAGS += -DF_CPU=$(F_CPU)
LDFLAGS += -mmcu=$(MCU)

# cirbuf
CFLAGS += -I$(UCGINE)/lib/cirbuf/include
exe-y-$(O)/spi-client += $(UCGINE)/lib/cirbuf/ucg_cirbuf.c
# uart
CFLAGS += -I$(UCGINE)/arch/avr/include
CFLAGS += -I$(UCGINE)/arch/avr/uart/include
CFLAGS += -I$(UCGINE)/lib/uart
CFLAGS += -I$(UCGINE)/lib/uart/include
exe-y-$(O)/spi-client += $(UCGINE)/lib/uart/ucg_uart.c
exe-y-$(O)/spi-client += $(UCGINE)/arch/avr/uart/ucg_avr_uart.c

# local files
exe-y-$(O)/spi-client += main.c uart.c

objcopy-hex-y-$(O)/spi-client.hex := $(O)/spi-client
objcopy-bin-y-$(O)/spi-client.bin := $(O)/spi-client

include $(UCGINE)/mk/ucgine.mk

.PHONY: all
all: $(all-targets)

.PHONY: clean
clean: _ucgine_clean

.PHONY: burn
burn: all
	  avrdude -e -p $(MCU) -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROG) \
		-b $(AVRDUDE_BAUD) -U flash:w:$(O)/spi-client:e