libusbhost: Open source USB host stack for embedded devices

First public version, date: 1.4.2015

Signed-off-by: Amir Hammad <amir.hammad@hotmail.com>

1 files changed, 256 insertions, 0 deletions

diff --git a/Makefile b/Makefile
new file mode 100644
index 0000000..9fe1c80
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,256 @@
+##
+## This file is part of the libusbhost project.
+## Imported and adopted from libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+## Copyright (C) 2013 Frantisek Burian <BuFran@seznam.cz>
+## Copyright (C) 2014 Amir Hammad <amir.hammad@hotmail.com>
+##
+## 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 3 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, see <http://www.gnu.org/licenses/>.
+##
+
+BINARY = demo
+BINARY := $(addprefix build/, demo)
+LIBUSBHOSTNAME = usbhost
+
+LIBUSBHOST := $(addprefix build/lib, $(LIBUSBHOSTNAME))
+LIBNAME		= opencm3_stm32f4
+DEFS		= -DSTM32F4 
+
+# load user config
+include config.mk
+DEFS	+= $(USER_CONFIG)
+
+ifdef USART_DEBUG
+DEFS 	+= -DUSART_DEBUG
+endif
+
+DEFS		+= -Iinclude
+LDSCRIPT = lib$(LIBNAME).ld
+
+SRCDIR = src
+OPENCM3_DIR ?= ./libopencm3
+FP_FLAGS	?= -mfloat-abi=hard -mfpu=fpv4-sp-d16 -mfp16-format=alternative
+ARCH_FLAGS	= -mthumb -mcpu=cortex-m4 $(FP_FLAGS)
+
+################################################################################
+# OpenOCD specific variables
+
+OOCD		?= openocd
+OOCD_INTERFACE	?= stlink-v2
+OOCD_BOARD	?= stm32f4discovery
+
+################################################################################
+# Black Magic Probe specific variables
+# Set the BMP_PORT to a serial port and then BMP is used for flashing
+BMP_PORT	?=
+
+################################################################################
+# texane/stlink specific variables
+#STLINK_PORT	?= :4242
+
+# Be silent per default, but 'make V=1' will show all compiler calls.
+ifneq ($(V),1)
+Q		:= @
+NULL		:= 2>/dev/null
+endif
+
+###############################################################################
+# Executables
+
+PREFIX		?= arm-none-eabi
+
+CC		:= $(PREFIX)-gcc
+CXX		:= $(PREFIX)-g++
+LD		:= $(PREFIX)-gcc
+AR		:= $(PREFIX)-ar
+AS		:= $(PREFIX)-as
+OBJCOPY		:= $(PREFIX)-objcopy
+OBJDUMP		:= $(PREFIX)-objdump
+GDB		:= $(PREFIX)-gdb
+STFLASH		= $(shell which st-flash)
+STYLECHECK	:= /checkpatch.pl
+STYLECHECKFLAGS	:= --no-tree -f --terse --mailback
+STYLECHECKFILES	:= $(shell find . -name '*.[ch]')
+
+
+###############################################################################
+# Source files
+
+LDSCRIPT	?= $(BINARY).ld
+
+
+SRCS = $(sort $(notdir $(wildcard $(SRCDIR)/*.c)))
+OBJSDEMO = $(patsubst %.c, build/%.o ,$(SRCS))
+OBJS = $(filter-out $(BINARY).o, $(OBJSDEMO))
+
+
+INCLUDE_DIR	= $(OPENCM3_DIR)/include 
+LIB_DIR		= $(OPENCM3_DIR)/lib
+SCRIPT_DIR	= $(OPENCM3_DIR)/scripts
+
+###############################################################################
+# C flags
+
+CFLAGS		+= -Ofast -g
+CFLAGS		+= -Wextra -Wshadow -Wimplicit-function-declaration
+CFLAGS		+= -Wredundant-decls -Wmissing-prototypes -Wstrict-prototypes
+CFLAGS		+= -fno-common -ffunction-sections -fdata-sections
+
+###############################################################################
+# C++ flags
+
+CXXFLAGS	+= -Ofast -g
+CXXFLAGS	+= -Wextra -Wshadow -Wredundant-decls  -Weffc++
+CXXFLAGS	+= -fno-common -ffunction-sections -fdata-sections
+
+###############################################################################
+# C & C++ preprocessor common flags
+
+CPPFLAGS	+= -MD
+CPPFLAGS	+= -Wall -Wundef
+CPPFLAGS	+= -I$(INCLUDE_DIR) $(DEFS)
+
+###############################################################################
+# Linker flags
+
+LDFLAGS		+= --static -nostartfiles
+LDFLAGS		+= -L$(LIB_DIR)
+LDFLAGS		+= -T$(LDSCRIPT)
+LDFLAGS		+= -Wl,-Map=build/$*.map
+LDFLAGS		+= -Wl,--gc-sections
+ifeq ($(V),99)
+LDFLAGS		+= -Wl,--print-gc-sections
+endif
+
+###############################################################################
+# Used libraries
+
+LDLIBS		+= -l$(LIBNAME)
+LDLIBS		+= -Wl,--start-group -lc -lgcc -lnosys -Wl,--end-group
+
+###############################################################################
+###############################################################################
+###############################################################################
+
+.SUFFIXES: .elf .bin .hex .srec .list .map .images
+.SECONDEXPANSION:
+.SECONDARY:
+
+
+all: elf bin lib
+	
+elf: $(BINARY).elf
+bin: $(BINARY).bin
+hex: $(BINARY).hex
+srec: $(BINARY).srec
+list: $(BINARY).list
+lib: $(LIBUSBHOST).a
+images: $(BINARY).images
+flash: $(BINARY).flash
+
+%.images: %.bin %.hex %.srec %.list %.map
+	@#printf "*** $* images generated ***\n"
+
+%.bin: %.elf
+	@printf "  OBJCOPY $(*).bin\n"
+	$(Q)$(OBJCOPY) -Obinary $(*).elf $(*).bin
+
+%.hex: %.elf
+	@#printf "  OBJCOPY $(*).hex\n"
+	$(Q)$(OBJCOPY) -Oihex $(*).elf $(*).hex
+
+%.srec: %.elf
+	@#printf "  OBJCOPY $(*).srec\n"
+	$(Q)$(OBJCOPY) -Osrec $(*).elf $(*).srec
+
+%.list: %.elf
+	@#printf "  OBJDUMP $(*).list\n"
+	$(Q)$(OBJDUMP) -S $(*).elf > $(*).list
+
+-include $(OBJSDEMO:.o=.d)
+build/%.elf build/%.map:  $(OBJSDEMO) $(LDSCRIPT)  
+	@printf "  LD      $(*).elf\n"
+	$(Q)$(LD) $(LDFLAGS) $(ARCH_FLAGS) $(OBJSDEMO) $(LDLIBS) -o build/$*.elf
+
+build/%.o:$(SRCDIR)/%.c
+	@printf "  CC      $(*).c\n"
+	$(Q)$(CC) $(CFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$*.c
+
+build/%.o: $(SRCDIR)/%.cxx
+	@printf "  CXX     $(*).cxx\n"
+	$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$(*).cxx
+
+build/%.o: $(SRCDIR)/%.cpp
+	@printf "  CXX     $(*).cpp\n"
+	$(Q)$(CXX) $(CXXFLAGS) $(CPPFLAGS) $(ARCH_FLAGS) -o $@ -c $(SRCDIR)/$(*).cpp
+$(LIB_DIR)/lib$(LIBNAME).a:		
+	
+clean:
+	@#printf "  CLEAN\n"
+	@rm -f build/*
+
+
+%.stlink-flash: %.bin
+	@printf "  FLASH  $<\n"
+	$(Q)$(STFLASH) write $(*).bin 0x8000000
+
+ifeq ($(STLINK_PORT),)
+ifeq ($(BMP_PORT),)
+ifeq ($(OOCD_SERIAL),)
+%.flash: %.hex
+	@printf "  FLASH   $<\n"
+	@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+	$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
+		    -f board/$(OOCD_BOARD).cfg \
+		    -c "init" -c "reset init" \
+		    -c "flash write_image erase $(*).hex" \
+		    -c "reset" \
+		    -c "shutdown" $(NULL)
+else
+%.flash: %.hex
+	@printf "  FLASH   $<\n"
+	@# IMPORTANT: Don't use "resume", only "reset" will work correctly!
+	$(Q)$(OOCD) -f interface/$(OOCD_INTERFACE).cfg \
+		    -f board/$(OOCD_BOARD).cfg \
+		    -c "ft2232_serial $(OOCD_SERIAL)" \
+		    -c "init" -c "reset init" \
+		    -c "flash write_image erase $(*).hex" \
+		    -c "reset" \
+		    -c "shutdown" $(NULL)
+endif
+else
+%.flash: %.elf
+	@printf "  GDB   $(*).elf (flash)\n"
+	$(Q)$(GDB) --batch \
+		   -ex 'target extended-remote $(BMP_PORT)' \
+		   -x $(SCRIPT_DIR)/black_magic_probe_flash.scr \
+		   $(*).elf
+endif
+else
+%.flash: %.elf
+	@printf "  GDB   $(*).elf (flash)\n"
+	$(Q)$(GDB) --batch \
+		   -ex 'target extended-remote $(STLINK_PORT)' \
+		   -x $(SCRIPT_DIR)/stlink_flash.scr \
+		   $(*).elf
+endif
+
+.PHONY: images clean stylecheck styleclean elf bin hex srec list testing
+
+-include $(OBJS:.o=.d)
+build/lib$(LIBUSBHOSTNAME).a:	$(OBJS)
+	@printf "  LIB 	$@\n"
+	$(Q)$(AR) rcs $@  $(OBJS)