Arduino Atmega328p support

Makefile

@@ -1,4 +1,4 @@
-#select target. supported: {VD5M, D4RII, USKY, TINYFISH, AFRX, RASP}
+#select target. supported: {VD5M, D4RII, USKY, TINYFISH, AFRX, RASP, ARDUINO}
 TARGET ?= USKY
 
 ASFLAGS       = -g

arch/atmega328/atmega328.mk

@@ -0,0 +1,101 @@
+# object files
+HAL_SRCS      = \
+								hal_uart.c \
+								hal_timeout.c \
+								hal_wdt.c \
+								hal_clocksource.c \
+								hal_spi.c \
+								hal_cc25xx.c \
+								hal_io.c \
+								hal_adc.c \
+								hal_storage.c \
+								hal_ppm.c \
+								hal_soft_spi.c \
+								hal_soft_serial.c
+
+ALL_SRCS    = $(HAL_SRCS) $(GENERIC_SRCS)
+
+# fetch this dir during include
+SELF_DIR := $(dir $(lastword $(MAKEFILE_LIST)))
+
+# include path
+CFLAGS += -I$(SELF_DIR)
+
+# Tool path, only override if not set
+TOOLROOT ?= /Applications/Arduino.app/Contents/Java/hardware/tools/avr/bin
+
+# Tools
+CC=$(TOOLROOT)/avr-gcc
+LD=$(TOOLROOT)/avr-gcc
+AR=$(TOOLROOT)/avr-gcc-ar
+AS=$(TOOLROOT)/avr-as
+OBJ=$(TOOLROOT)/avr-objcopy
+SIZE=$(TOOLROOT)/avr-size
+AVRDUDE=$(TOOLROOT)/avrdude
+
+# Code Paths
+ARCH_DIR=arch/atmega328
+
+INCLUDE_DIRS := $(INCLUDE_DIRS) \
+                $(SRC_DIR) \
+                $(ARCH_DIR) \
+                $(TARGET_DIR)
+
+# Search path for standard files
+vpath %.c ./
+vpath %.c $(ARCH_DIR)
+
+LDFLAGS+= $(BOARD_FLAGS) -Wl,--gc-sections -Os -flto -fuse-linker-plugin
+CFLAGS+= $(BOARD_FLAGS) -std=gnu11 -Os -flto -fno-fat-lto-objects
+CFLAGS+= -I. -I$(ARCH_DIR)
+CFLAGS+= -DBUILD_TARGET=$(TARGET)
+CFLAGS+= $(addprefix -I,$(INCLUDE_DIRS))
+
+TARGET_OBJS     = $(addsuffix .o,$(addprefix $(OBJECT_DIR)/$(TARGET)/,$(basename $(ALL_SRCS))))
+TARGET_DEPS     = $(addsuffix .d,$(addprefix $(OBJECT_DIR)/$(TARGET)/,$(basename $(ALL_SRCS))))
+TARGET_ELF      = $(OBJECT_DIR)/$(RESULT).elf
+TARGET_HEX      = $(OBJECT_DIR)/$(RESULT).hex
+TARGET_EEP      = $(OBJECT_DIR)/$(RESULT).eep
+TARGET_LST      = $(OBJECT_DIR)/$(RESULT).lst
+
+# Build executable
+board: $(TARGET_HEX)
+
+$(TARGET_ELF): $(TARGET_OBJS)
+	$(V1) exit
+	$(V1) echo Linking: $(TARGET)
+	$(V1) $(LD) -o $@ $^ $(LDFLAGS)
+	$(V0) $(SIZE) $(TARGET_ELF)
+	$(OBJ) -j .eeprom --set-section-flags=.eeprom='alloc,load' \
+		--no-change-warnings --change-section-lma .eeprom=0 -O ihex $(TARGET_ELF) $(TARGET_EEP)
+	$(SIZE) --mcu=$(BOARD_NAME) -C --format=avr $(TARGET_ELF)
+
+$(TARGET_HEX): $(TARGET_ELF)
+	$(OBJ) -O ihex -R .eeprom $(TARGET_ELF) $(TARGET_HEX)
+
+$(TARGET_LST): $(TARGET_ELF)
+	$(DUMP) -h -S $(TARGET_ELF) > $(TARGET_LST)
+
+$(OBJECT_DIR)/$(TARGET)/%.o: %.c
+	$(V1) mkdir -p $(dir $@)
+	$(V1) echo "%% $(notdir $<)" "$(STDOUT)" && \
+	$(CC) -c -o $@ $(CFLAGS) $<
+
+$(OBJECT_DIR)/$(TARGET)/%.o: %.s
+	$(V1) mkdir -p $(dir $@)
+	$(V1) echo "%% $(notdir $<)" "$(STDOUT)"
+	$(V1) $(CC) -c $(CFLAGS) $(DEPFLAGS) $< -o $@
+
+clean:
+	$(V1) echo Cleaning: $(TARGET)
+	$(V1) rm -f $(OBJECT_DIR)/$(TARGET)/src/*.o $(OBJECT_DIR)/$(TARGET)/src/*.d $(OBJECT_DIR)/$(TARGET)/*.o $(OBJECT_DIR)/$(TARGET)/*.d $(OBJECT_DIR)/*.elf $(OBJECT_DIR)/*.bin $(OBJECT_DIR)/*.hex $(OBJECT_DIR)/*.eep
+
+flash: $(TARGET_HEX)
+	$(AVRDUDE) -q -V -p $(BOARD_NAME) \
+		-C $(TOOLROOT)/../etc/avrdude.conf \
+		-D -c arduino -b $(SERIAL_SPEED) -P $(SERIAL_PORT) \
+		-U flash:w:$^:i
+
+.PHONY: board clean flash debug
+
+

src/spi.c → arch/atmega328/hal_adc.c

@@ -1,6 +1,4 @@
 /*
-    Copyright 2017 fishpepper <AT> gmail.com
-
     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 3 of the License, or
@@ -12,16 +10,20 @@
     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, see <http:// www.gnu.org/licenses/>.
+    along with this program.  If not, see <http://www.gnu.org/licenses/>.
 
-   author: fishpepper <AT> gmail.com
+   author: fishpepper <AT> gmail.com, jimmyw <AT> github
 */
 
-#include "spi.h"
-#include "hal_spi.h"
-#include "debug.h"
+#include "hal_adc.h"
+
+void hal_adc_init(void) {
+}
+
+uint8_t hal_adc_get_scaled(uint8_t ch) {
+  return ch;
+}
 
-void spi_init(void) {
-    debug("spi: init\n"); debug_flush();
-    hal_spi_init();
+void hal_adc_process(void) {
 }
+

arch/atmega328/hal_adc.h

@@ -0,0 +1,13 @@
+#ifndef __HAL_ADC_H__
+#define __HAL_ADC_H__
+#include "main.h"
+#include <stdint.h>
+
+extern volatile uint16_t hal_adc_data[2];
+
+void hal_adc_init(void);
+
+uint8_t hal_adc_get_scaled(uint8_t ch);
+void hal_adc_process(void);
+
+#endif