diff --git a/snesram.tmproj b/snesram.tmproj index 97c9a75..a79e4ac 100644 --- a/snesram.tmproj +++ b/snesram.tmproj @@ -2,8 +2,6 @@ - currentDocument - poc/avr_usbload/main.c documents @@ -21,20 +19,6 @@ 200 metaData - poc/avr_sdcard/fat.c - - caret - - column - 9 - line - 307 - - firstVisibleColumn - 0 - firstVisibleLine - 265 - poc/avr_sdcard/fat.h caret @@ -49,48 +33,6 @@ firstVisibleLine 0 - poc/avr_sdcard/main.c - - caret - - column - 28 - line - 91 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_sdcard/main.eep - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_sdcard/mmc.c - - caret - - column - 23 - line - 38 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - poc/avr_sdcard/mmc.h caret @@ -105,292 +47,6 @@ firstVisibleLine 0 - poc/avr_sdcard/uart.c - - caret - - column - 0 - line - 29 - - firstVisibleColumn - 0 - firstVisibleLine - 27 - - poc/avr_usbload/commandline/Makefile - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_usbload/commandline/opendevice.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_usbload/commandline/snesuploader.c - - caret - - column - 45 - line - 98 - - firstVisibleColumn - 0 - firstVisibleLine - 52 - - poc/avr_usbload/crc.c - - caret - - column - 0 - line - 6 - - columnSelection - - firstVisibleColumn - 0 - firstVisibleLine - 0 - selectFrom - - column - 0 - line - 0 - - selectTo - - column - 0 - line - 43 - - - poc/avr_usbload/crc.h - - caret - - column - 66 - line - 6 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_usbload/debug.c - - caret - - column - 0 - line - 10 - - columnSelection - - firstVisibleColumn - 0 - firstVisibleLine - 0 - selectFrom - - column - 0 - line - 9 - - selectTo - - column - 0 - line - 10 - - - poc/avr_usbload/debug.h - - caret - - column - 0 - line - 2 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_usbload/main.c - - caret - - column - 22 - line - 55 - - firstVisibleColumn - 0 - firstVisibleLine - 15 - - poc/avr_usbload/requests.h - - caret - - column - 27 - line - 29 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_usbload/sram.c - - caret - - column - 5 - line - 151 - - firstVisibleColumn - 0 - firstVisibleLine - 105 - - poc/avr_usbload/sram.h - - caret - - column - 0 - line - 44 - - columnSelection - - firstVisibleColumn - 0 - firstVisibleLine - 0 - selectFrom - - column - 0 - line - 43 - - selectTo - - column - 0 - line - 44 - - - poc/avr_usbload/uart.c - - caret - - column - 5 - line - 70 - - firstVisibleColumn - 0 - firstVisibleLine - 27 - - poc/avr_usbload/uart.h - - caret - - column - 0 - line - 15 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - poc/avr_usbload/usbconfig.h - - caret - - column - 41 - line - 143 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - scripts/b.py - - caret - - column - 4 - line - 23 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - scripts/crc_xmodem.py - - caret - - column - 14 - line - 47 - - firstVisibleColumn - 0 - firstVisibleLine - 14 - snes/banktest/LoadGraphics.asm caret @@ -447,146 +103,6 @@ firstVisibleLine 43 - snes/crc/PPU.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - snes/crc/PPU.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - snes/crc/crc.c - - caret - - column - 22 - line - 10 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - snes/crc/crc.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - snes/crc/data.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - snes/crc/debug.c - - caret - - column - 2 - line - 48 - - firstVisibleColumn - 0 - firstVisibleLine - 7 - - snes/crc/debug.h - - caret - - column - 10 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - snes/crc/event.c - - caret - - column - 0 - line - 24 - - firstVisibleColumn - 0 - firstVisibleLine - 2 - - snes/crc/main.c - - caret - - column - 17 - line - 54 - - firstVisibleColumn - 0 - firstVisibleLine - 20 - - snes/crc/pad.c - - caret - - column - 35 - line - 8 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - tools/bsnes/cart/cart.cpp caret @@ -671,514 +187,7 @@ firstVisibleLine 0 - tools/usbload/avr.mk - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/usbload/config.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/usbload/usbconfig.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/usbload/usbdrv/usbdrv.h - - caret - - column - 0 - line - 646 - - columnSelection - - firstVisibleColumn - 0 - firstVisibleLine - 175 - selectFrom - - column - 0 - line - 643 - - selectTo - - column - 0 - line - 646 - - - tools/usbload/usbload.c - - caret - - column - 0 - line - 269 - - columnSelection - - firstVisibleColumn - 0 - firstVisibleLine - 221 - selectFrom - - column - 0 - line - 224 - - selectTo - - column - 0 - line - 269 - - - tools/vusb/examples/custom-class/Readme.txt - - caret - - column - 4 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/custom-class/commandline/set-led.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 79 - - tools/vusb/examples/custom-class/firmware/Makefile - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/custom-class/firmware/main.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 30 - - tools/vusb/examples/custom-class/firmware/requests.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/custom-class/firmware/usbconfig.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/hid-custom-rq/Readme.txt - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/hid-custom-rq/commandline/Makefile - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/hid-custom-rq/commandline/opendevice.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 130 - - tools/vusb/examples/hid-custom-rq/commandline/opendevice.h - - caret - - column - 0 - line - 66 - - firstVisibleColumn - 0 - firstVisibleLine - 25 - - tools/vusb/examples/hid-custom-rq/commandline/set-led.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 26 - - tools/vusb/examples/hid-custom-rq/firmware/main.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 8 - - tools/vusb/examples/hid-data/commandline/Makefile - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/hid-data/commandline/Makefile.windows - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/hid-data/commandline/hiddata.c - - caret - - column - 22 - line - 19 - - firstVisibleColumn - 0 - firstVisibleLine - 272 - - tools/vusb/examples/hid-data/commandline/hiddata.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 19 - - tools/vusb/examples/hid-data/commandline/hidsdi.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/hid-data/commandline/hidtool.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 75 - - tools/vusb/examples/hid-data/firmware/main.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 55 - - tools/vusb/examples/hid-data/firmware/usbconfig.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 155 - - tools/vusb/examples/hid-mouse/Readme.txt - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/usbtool/Readme.txt - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - tools/vusb/examples/usbtool/opendevice.c - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 151 - - tools/vusb/examples/usbtool/opendevice.h - - caret - - column - 0 - line - 0 - - firstVisibleColumn - 0 - firstVisibleLine - 0 - - openDocuments - - snes/crc/debug.h - snes/crc/debug.c - scripts/b.py - scripts/crc_xmodem.py - poc/avr_sdcard/fat.c - snes/crc/PPU.h - snes/crc/PPU.c - snes/crc/data.h - snes/crc/crc.h - snes/crc/crc.c - snes/crc/event.c - snes/crc/main.c - poc/avr_sdcard/mmc.c - tools/bsnes/cart/cart.cpp - tools/bsnes/memory/smemory/mapper/chip.cpp - tools/bsnes/memory/smemory/mapper/generic.cpp - tools/bsnes/memory/smemory/mapper/system.cpp - tools/bsnes/memory/smemory/smemory.cpp - tools/bsnes/cart/cart.hpp - poc/avr_sdcard/main.c - poc/avr_usbload/crc.c - poc/avr_usbload/crc.h - poc/avr_usbload/debug.c - poc/avr_usbload/debug.h - poc/avr_usbload/sram.c - poc/avr_usbload/commandline/opendevice.c - poc/avr_usbload/requests.h - poc/avr_usbload/usbconfig.h - tools/vusb/examples/usbtool/Readme.txt - tools/vusb/examples/usbtool/opendevice.h - tools/vusb/examples/usbtool/opendevice.c - tools/vusb/examples/custom-class/firmware/requests.h - tools/vusb/examples/custom-class/firmware/Makefile - poc/avr_usbload/sram.h - tools/vusb/examples/hid-mouse/Readme.txt - tools/vusb/examples/custom-class/firmware/main.c - tools/vusb/examples/hid-custom-rq/firmware/main.c - tools/vusb/examples/hid-data/firmware/main.c - tools/vusb/examples/hid-data/commandline/hiddata.h - tools/vusb/examples/hid-data/commandline/hidsdi.h - tools/vusb/examples/hid-data/commandline/hidtool.c - tools/vusb/examples/hid-data/commandline/hiddata.c - tools/vusb/examples/hid-data/firmware/usbconfig.h - tools/vusb/examples/hid-data/commandline/Makefile.windows - tools/vusb/examples/hid-data/commandline/Makefile - tools/vusb/examples/hid-custom-rq/commandline/Makefile - tools/vusb/examples/hid-custom-rq/commandline/opendevice.c - tools/vusb/examples/hid-custom-rq/commandline/opendevice.h - tools/vusb/examples/hid-custom-rq/commandline/set-led.c - tools/vusb/examples/custom-class/firmware/usbconfig.h - tools/vusb/examples/custom-class/commandline/set-led.c - tools/vusb/examples/custom-class/Readme.txt - poc/avr_usbload/main.c - poc/avr_usbload/uart.h - poc/avr_usbload/commandline/Makefile - poc/avr_usbload/commandline/snesuploader.c - poc/avr_sdcard/uart.c - poc/avr_sdcard/main.eep - tools/usbload/usbconfig.h - tools/usbload/usbdrv/usbdrv.h - tools/usbload/usbload.c - tools/usbload/config.h - tools/usbload/avr.mk - poc/avr_usbload/uart.c - tools/vusb/examples/hid-custom-rq/Readme.txt - snes/crc/pad.c - showFileHierarchyDrawer showFileHierarchyPanel @@ -1191,29 +200,6 @@ subItems - poc - - isExpanded - - subItems - - avr_usbload - - isExpanded - - subItems - - commandline - - isExpanded - - subItems - - - - - - scripts isExpanded @@ -1221,45 +207,31 @@ subItems - snes - - isExpanded - - subItems - - tools isExpanded subItems - vusb + bsnes isExpanded subItems - examples + lib isExpanded subItems - custom-class + ruby isExpanded subItems - commandline - - isExpanded - - subItems - - - firmware + video isExpanded @@ -1268,59 +240,15 @@ - hid-custom-rq - - isExpanded - - subItems - - firmware - - isExpanded - - subItems - - - - - hid-data - - isExpanded - - subItems - - commandline - - isExpanded - - subItems - - - firmware - - isExpanded - - subItems - - - - - hid-mouse - - isExpanded - - subItems - - - usbtool - - isExpanded - - subItems - - + ui_qt + + isExpanded + + subItems + + @@ -1329,6 +257,6 @@ windowFrame - {{4, 56}, {733, 822}} + {{0, 60}, {720, 818}} diff --git a/tools/usbload/Makefile b/tools/usbload/Makefile deleted file mode 100644 index 9933f9a..0000000 --- a/tools/usbload/Makefile +++ /dev/null @@ -1,107 +0,0 @@ - -# microcontroller and project specific settings -TARGET = usbload -F_CPU = 20000000UL -MCU = atmega168 - -SRC = usbload.c -ASRC = usbdrv/usbdrvasm.S interrupts.S -OBJECTS += $(patsubst %.c,%.o,${SRC}) -OBJECTS += $(patsubst %.S,%.o,${ASRC}) -HEADERS += $(shell echo *.h) -# CFLAGS += -Werror -LDFLAGS += -L/usr/local/avr/avr/lib -CFLAGS += -Iusbdrv -I. -CFLAGS += -DHARDWARE_REV=$(HARDWARE_REV) -ASFLAGS += -x assembler-with-cpp -ASFLAGS += -Iusbdrv -I. - -# use own linkerscript, for special interrupt table handling -LDFLAGS += -T ./ldscripts/avr5.x - -# no safe mode checks -AVRDUDE_FLAGS += -u - -# set name for dependency-file -MAKEFILE = Makefile - -# bootloader section start -# (see datasheet) -ifeq ($(MCU),atmega168) - # atmega168 with 1024 words bootloader: - # bootloader section starts at 0x1c00 (word-address) == 0x3800 (byte-address) - BOOT_SECTION_START = 0x3800 -else ifeq ($(MCU),atmega88) - # atmega88 with 1024 words bootloader: - # bootloader section starts at 0xc00 (word-address) == 0x1800 (byte-address) - BOOT_SECTION_START = 0x1800 -endif - -LDFLAGS += -Wl,--section-start=.text=$(BOOT_SECTION_START) -CFLAGS += -DBOOT_SECTION_START=$(BOOT_SECTION_START) - - -include avr.mk - -.PHONY: all - -all: $(TARGET).hex $(TARGET).lss - @echo "===============================" - @echo "$(TARGET) compiled for: $(MCU)" - @echo -n "size is: " - @$(SIZE) -A $(TARGET).hex | grep "\.sec1" | tr -s " " | cut -d" " -f2 - @echo "===============================" - -$(TARGET): $(OBJECTS) $(TARGET).o - -%.o: $(HEADERS) - -.PHONY: install lock fuses-atmega168-unzap bootstrap - -# install: program-serial-$(TARGET) program-serial-eeprom-$(TARGET) -install: program-isp-$(TARGET) - -lock: - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U lock:w:0x2f:m - -fuses-atmega168-unzap: - echo "sck 5" | $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -F -u -t - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U lfuse:w:0xe7:m -U hfuse:w:0xd5:m -U efuse:w:0x00:m - echo "sck 0.2" | $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -F -u -t - -fuses-atmega168-rumpus: - echo "sck 5" | $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -F -u -t - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U lfuse:w:0xe7:m -U efuse:w:0x00:m - echo "sck 0.2" | $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -F -u -t - -bootstrap: fuses-atmega168-unzap install lock - -.PHONY: clean clean-$(TARGET) clean-uploadtest - -clean: clean-$(TARGET) clean-uploadtest - -clean-$(TARGET): - $(RM) $(TARGET) $(OBJECTS) - -clean-uploadtest: - rm -f datatestfile{512,14k}.raw - -.PHONY: depend test uploadtest - -depend: - $(CC) $(CFLAGS) -M $(CDEFS) $(CINCS) $(SRC) >> $(MAKEFILE).dep - -datatestfile14k.raw: - dd if=/dev/urandom of=datatestfile14k.raw bs=1 count=14336 - -datatestfile512.raw: - dd if=/dev/urandom of=datatestfile512.raw bs=1 count=512 - -test/test.hex: - $(MAKE) -C test test.hex - -uploadtest: datatestfile14k.raw datatestfile512.raw - $(AVRDUDE) -p $(AVRDUDE_MCU) -c usbasp -P usb -U flash:w:datatestfile14k.raw -U eeprom:w:datatestfile512.raw - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U flash:v:datatestfile14k.raw -U eeprom:v:datatestfile512.raw - --include $(MAKEFILE).dep diff --git a/tools/usbload/avr.mk b/tools/usbload/avr.mk deleted file mode 100644 index dd6961c..0000000 --- a/tools/usbload/avr.mk +++ /dev/null @@ -1,99 +0,0 @@ -# Programmer used for In System Programming -ISP_PROG = dapa -# device the ISP programmer is connected to -ISP_DEV = /dev/parport0 -# Programmer used for serial programming (using the bootloader) -SERIAL_PROG = avr109 -# device the serial programmer is connected to -SERIAL_DEV = /dev/ttyS0 - -# programs -CC = avr-gcc -OBJCOPY = avr-objcopy -OBJDUMP = avr-objdump -AS = avr-as -CP = cp -RM = rm -f -AVRDUDE = avrdude -AVRDUDE_BAUDRATE = 19200 -SIZE = avr-size - --include $(CURDIR)/config.mk - -# flags for avrdude -ifeq ($(MCU),atmega8) - AVRDUDE_MCU=m8 -endif -ifeq ($(MCU),atmega48) - AVRDUDE_MCU=m48 -endif -ifeq ($(MCU),atmega88) - AVRDUDE_MCU=m88 -endif -ifeq ($(MCU),atmega168) - AVRDUDE_MCU=m168 -endif - -AVRDUDE_FLAGS += -p $(AVRDUDE_MCU) -b $(AVRDUDE_BAUDRATE) - -# flags for the compiler -CFLAGS += -g -Os -finline-limit=800 -mmcu=$(MCU) -DF_CPU=$(F_CPU) -std=gnu99 -ASFLAGS += -g -mmcu=$(MCU) -DF_CPU=$(F_CPU) - -# flags for the linker -LDFLAGS += -mmcu=$(MCU) - -ifneq ($(DEBUG),) - CFLAGS += -Wall -W -Wchar-subscripts -Wmissing-prototypes - CFLAGS += -Wmissing-declarations -Wredundant-decls - CFLAGS += -Wstrict-prototypes -Wshadow -Wbad-function-cast - CFLAGS += -Winline -Wpointer-arith -Wsign-compare - #CFLAGS += -Wunreachable-code -Wdisabled-optimization -Werror - CFLAGS += -Wunreachable-code -Wdisabled-optimization - CFLAGS += -Wcast-align -Wwrite-strings -Wnested-externs -Wundef - CFLAGS += -Wa,-adhlns=$(basename $@).lst - CFLAGS += -DDEBUG -endif - -all: - -$(OBJECTS): - -clean: - $(RM) *.hex *.eep.hex *.o *.lst *.lss - -interactive-isp: - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -t - -interactive-serial: - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(SERIAL_PROG) -P $(SERIAL_DEV) -t - - -.PHONY: all clean interactive-isp interactive-serial launch-bootloader - -program-isp-%: %.hex - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U flash:w:$< - -program-isp-eeprom-%: %.eep.hex - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(ISP_PROG) -P $(ISP_DEV) -U eeprom:w:$< - -program-serial-%: %.hex - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(SERIAL_PROG) -P $(SERIAL_DEV) -U flash:w:$< - -program-serial-eeprom-%: %.eep.hex launch-bootloader - $(AVRDUDE) $(AVRDUDE_FLAGS) -c $(SERIAL_PROG) -P $(SERIAL_DEV) -U eeprom:w:$< - -%.hex: % - $(OBJCOPY) -O ihex -R .eeprom $< $@ - -%.eep.hex: % - $(OBJCOPY) --set-section-flags=.eeprom="alloc,load" --change-section-lma .eeprom=0 -O ihex -j .eeprom $< $@ - -%.lss: % - $(OBJDUMP) -h -S $< > $@ - -%-size: %.hex - $(SIZE) $< - -launch-bootloader: - launch-bootloader $(SERIAL_DEV) $(AVRDUDE_BAUDRATE) diff --git a/tools/usbload/config.h b/tools/usbload/config.h deleted file mode 100644 index 1dd0982..0000000 --- a/tools/usbload/config.h +++ /dev/null @@ -1,18 +0,0 @@ -/* configuratino file for usbload */ - -/* after this timeout, the main application ist started, if no usb - * connection is detected */ -#define TIMEOUT 50 - -/* uncomment this if you need to define some other signature bytes */ -//#define SIGNATURE_BYTES 0x23, 0x24, 0x25, 0 - -/* uncomment this if you want to catch the eeprom isp bytewise read/write - * commands. costs ~34 byte */ -//#define ENABLE_CATCH_EEPROM_ISP - -/* uncomment this if you want a usb echo function (for communication testing) */ -//#define ENABLE_ECHO_FUNC - -/* uncomment this for debug information via uart */ -//#define DEBUG_UART diff --git a/tools/usbload/fuses.txt b/tools/usbload/fuses.txt deleted file mode 100644 index 8ef9a3e..0000000 --- a/tools/usbload/fuses.txt +++ /dev/null @@ -1,21 +0,0 @@ -additional fuse bit settings for using this bootloader: -======================================================= - -atmega88/168: - - extended fuse byte: - 1024 words bootloader size: BOOTSZ0 = 0 - BOOTSZ1 = 0 - - reset vector, jump to bootloader on reset: BOOTRST = 0 - - -> default: 0b001 = 0x01 - new: 0b000 = 0x00 - - lock byte: - SPM is not allowed to write to the Boot Loader section BLB12 = 1 - BLB11 = 0 - - -> default: 0b111111 = 0x3f - new: 0b101111 = 0x2f - diff --git a/tools/usbload/interrupts.S b/tools/usbload/interrupts.S deleted file mode 100644 index 2c55e6b..0000000 --- a/tools/usbload/interrupts.S +++ /dev/null @@ -1,9 +0,0 @@ -.extern __init, __vector_1 -.global __vector_default, exit -.section .vectors.bootloader - -/* micro-jumptable, we are using just reset and int0 vectors */ -exit: -__vector_default: -jmp __init -jmp __vector_1 diff --git a/tools/usbload/ldscripts/avr5.x b/tools/usbload/ldscripts/avr5.x deleted file mode 100644 index 53e50e8..0000000 --- a/tools/usbload/ldscripts/avr5.x +++ /dev/null @@ -1,174 +0,0 @@ -/* Default linker script, for normal executables */ -OUTPUT_FORMAT("elf32-avr","elf32-avr","elf32-avr") -OUTPUT_ARCH(avr:5) -MEMORY -{ - text (rx) : ORIGIN = 0, LENGTH = 128K - data (rw!x) : ORIGIN = 0x800060, LENGTH = 0xffa0 - eeprom (rw!x) : ORIGIN = 0x810000, LENGTH = 64K -} -SECTIONS -{ - /* Read-only sections, merged into text segment: */ - .hash : { *(.hash) } - .dynsym : { *(.dynsym) } - .dynstr : { *(.dynstr) } - .gnu.version : { *(.gnu.version) } - .gnu.version_d : { *(.gnu.version_d) } - .gnu.version_r : { *(.gnu.version_r) } - .rel.init : { *(.rel.init) } - .rela.init : { *(.rela.init) } - .rel.text : - { - *(.rel.text) - *(.rel.text.*) - *(.rel.gnu.linkonce.t*) - } - .rela.text : - { - *(.rela.text) - *(.rela.text.*) - *(.rela.gnu.linkonce.t*) - } - .rel.fini : { *(.rel.fini) } - .rela.fini : { *(.rela.fini) } - .rel.rodata : - { - *(.rel.rodata) - *(.rel.rodata.*) - *(.rel.gnu.linkonce.r*) - } - .rela.rodata : - { - *(.rela.rodata) - *(.rela.rodata.*) - *(.rela.gnu.linkonce.r*) - } - .rel.data : - { - *(.rel.data) - *(.rel.data.*) - *(.rel.gnu.linkonce.d*) - } - .rela.data : - { - *(.rela.data) - *(.rela.data.*) - *(.rela.gnu.linkonce.d*) - } - .rel.ctors : { *(.rel.ctors) } - .rela.ctors : { *(.rela.ctors) } - .rel.dtors : { *(.rel.dtors) } - .rela.dtors : { *(.rela.dtors) } - .rel.got : { *(.rel.got) } - .rela.got : { *(.rela.got) } - .rel.bss : { *(.rel.bss) } - .rela.bss : { *(.rela.bss) } - .rel.plt : { *(.rel.plt) } - .rela.plt : { *(.rela.plt) } - - /DISCARD/ : { *(.vectors) } - /DISCARD/ : { *(.fini9) - *(.fini6) - *(.fini0) - } - /* Internal text space or external memory */ - .text : - { - *(.vectors.bootloader) - __ctors_start = . ; - *(.ctors) - 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We -recommend that you use that file as a template because it will always list -the newest features and options. -*/ - -#include "config.h" - -/* ---------------------------- Hardware Config ---------------------------- */ - -#define USB_CFG_IOPORTNAME D -/* This is the port where the USB bus is connected. When you configure it to - * "B", the registers PORTB, PINB and DDRB will be used. - */ -#define USB_CFG_DMINUS_BIT 4 -/* This is the bit number in USB_CFG_IOPORT where the USB D- line is connected. - * This may be any bit in the port. - */ -#define USB_CFG_DPLUS_BIT 2 -/* This is the bit number in USB_CFG_IOPORT where the USB D+ line is connected. - * This may be any bit in the port. Please note that D+ must also be connected - * to interrupt pin INT0! [You can also use other interrupts, see section - * "Optional MCU Description" below, or you can connect D- to the interrupt, as - * it is required if you use the USB_COUNT_SOF feature. If you use D- for the - * interrupt, the USB interrupt will also be triggered at Start-Of-Frame - * markers every millisecond.] - */ -#define USB_CFG_CLOCK_KHZ (F_CPU/1000) -/* Clock rate of the AVR in MHz. Legal values are 12000, 15000, 16000, 16500 - * and 20000. The 16.5 MHz version of the code requires no crystal, it - * tolerates +/- 1% deviation from the nominal frequency. All other rates - * require a precision of 2000 ppm and thus a crystal! - * Default if not specified: 12 MHz - */ - -/* ----------------------- Optional Hardware Config ------------------------ */ - -#define USB_CFG_PULLUP_IOPORTNAME B -/* If you connect the 1.5k pullup resistor from D- to a port pin instead of - * V+, you can connect and disconnect the device from firmware by calling - * the macros usbDeviceConnect() and usbDeviceDisconnect() (see usbdrv.h). - * This constant defines the port on which the pullup resistor is connected. - */ -#define USB_CFG_PULLUP_BIT 0 -/* This constant defines the bit number in USB_CFG_PULLUP_IOPORT (defined - * above) where the 1.5k pullup resistor is connected. See description - * above for details. - */ - -/* --------------------------- Functional Range ---------------------------- */ - -#define USB_CFG_HAVE_INTRIN_ENDPOINT 0 -/* Define this to 1 if you want to compile a version with two endpoints: The - * default control endpoint 0 and an interrupt-in endpoint (any other endpoint - * number). - */ -#define USB_CFG_HAVE_INTRIN_ENDPOINT3 0 -/* Define this to 1 if you want to compile a version with three endpoints: The - * default control endpoint 0, an interrupt-in endpoint 3 (or the number - * configured below) and a catch-all default interrupt-in endpoint as above. - * You must also define USB_CFG_HAVE_INTRIN_ENDPOINT to 1 for this feature. - */ -#define USB_CFG_EP3_NUMBER 3 -/* If the so-called endpoint 3 is used, it can now be configured to any other - * endpoint number (except 0) with this macro. Default if undefined is 3. - */ -/* #define USB_INITIAL_DATATOKEN USBPID_DATA1 */ -/* The above macro defines the startup condition for data toggling on the - * interrupt/bulk endpoints 1 and 3. Defaults to USBPID_DATA1. - * Since the token is toggled BEFORE sending any data, the first packet is - * sent with the oposite value of this configuration! - */ -#define USB_CFG_IMPLEMENT_HALT 0 -/* Define this to 1 if you also want to implement the ENDPOINT_HALT feature - * for endpoint 1 (interrupt endpoint). Although you may not need this feature, - * it is required by the standard. We have made it a config option because it - * bloats the code considerably. - */ -#define USB_CFG_INTR_POLL_INTERVAL 200 -/* If you compile a version with endpoint 1 (interrupt-in), this is the poll - * interval. The value is in milliseconds and must not be less than 10 ms for - * low speed devices. - */ -#define USB_CFG_IS_SELF_POWERED 0 -/* Define this to 1 if the device has its own power supply. Set it to 0 if the - * device is powered from the USB bus. - */ -#define USB_CFG_MAX_BUS_POWER 100 -/* Set this variable to the maximum USB bus power consumption of your device. - * The value is in milliamperes. [It will be divided by two since USB - * communicates power requirements in units of 2 mA.] - */ -#define USB_CFG_IMPLEMENT_FN_WRITE 1 -/* Set this to 1 if you want usbFunctionWrite() to be called for control-out - * transfers. Set it to 0 if you don't need it and want to save a couple of - * bytes. - */ -#define USB_CFG_IMPLEMENT_FN_READ 1 -/* Set this to 1 if you need to send control replies which are generated - * "on the fly" when usbFunctionRead() is called. If you only want to send - * data from a static buffer, set it to 0 and return the data from - * usbFunctionSetup(). This saves a couple of bytes. - */ -#define USB_CFG_IMPLEMENT_FN_WRITEOUT 0 -/* Define this to 1 if you want to use interrupt-out (or bulk out) endpoints. - * You must implement the function usbFunctionWriteOut() which receives all - * interrupt/bulk data sent to any endpoint other than 0. The endpoint number - * can be found in 'usbRxToken'. - */ -#define USB_CFG_HAVE_FLOWCONTROL 0 -/* Define this to 1 if you want flowcontrol over USB data. See the definition - * of the macros usbDisableAllRequests() and usbEnableAllRequests() in - * usbdrv.h. - */ -#define USB_CFG_LONG_TRANSFERS 0 -/* Define this to 1 if you want to send/receive blocks of more than 254 bytes - * in a single control-in or control-out transfer. Note that the capability - * for long transfers increases the driver size. - */ -/* #define USB_RX_USER_HOOK(data, len) if(usbRxToken == (uchar)USBPID_SETUP) blinkLED(); */ -/* This macro is a hook if you want to do unconventional things. If it is - * defined, it's inserted at the beginning of received message processing. - * If you eat the received message and don't want default processing to - * proceed, do a return after doing your things. One possible application - * (besides debugging) is to flash a status LED on each packet. - */ -/* #define USB_RESET_HOOK(resetStarts) if(!resetStarts){hadUsbReset();} */ -/* This macro is a hook if you need to know when an USB RESET occurs. It has - * one parameter which distinguishes between the start of RESET state and its - * end. - */ -/* #define USB_SET_ADDRESS_HOOK() hadAddressAssigned(); */ -/* This macro (if defined) is executed when a USB SET_ADDRESS request was - * received. - */ -#define USB_COUNT_SOF 0 -/* define this macro to 1 if you need the global variable "usbSofCount" which - * counts SOF packets. This feature requires that the hardware interrupt is - * connected to D- instead of D+. - */ -#define USB_CFG_HAVE_MEASURE_FRAME_LENGTH 0 -/* define this macro to 1 if you want the function usbMeasureFrameLength() - * compiled in. This function can be used to calibrate the AVR's RC oscillator. - */ - -/* -------------------------- Device Description --------------------------- */ - -#define USB_CFG_VENDOR_ID 0xc0, 0x16 /* 5824 in dec, stands for VOTI */ -/* USB vendor ID for the device, low byte first. If you have registered your - * own Vendor ID, define it here. Otherwise you use obdev's free shared - * VID/PID pair. Be sure to read USBID-License.txt for rules! - */ -#define USB_CFG_DEVICE_ID 0xdc, 0x05 /* 1500 in dec, obdev's free PID */ -/* This is the ID of the product, low byte first. It is interpreted in the - * scope of the vendor ID. If you have registered your own VID with usb.org - * or if you have licensed a PID from somebody else, define it here. Otherwise - * you use obdev's free shared VID/PID pair. Be sure to read the rules in - * USBID-License.txt! - */ -#define USB_CFG_DEVICE_VERSION 0x00, 0x01 -/* Version number of the device: Minor number first, then major number. - */ -#define USB_CFG_VENDOR_NAME 'w', 'w', 'w', '.', 'f', 'i', 's', 'c', 'h', 'l', '.', 'd', 'e' -#define USB_CFG_VENDOR_NAME_LEN 13 -/* These two values define the vendor name returned by the USB device. The name - * must be given as a list of characters under single quotes. The characters - * are interpreted as Unicode (UTF-16) entities. - * If you don't want a vendor name string, undefine these macros. - * ALWAYS define a vendor name containing your Internet domain name if you use - * obdev's free shared VID/PID pair. See the file USBID-License.txt for - * details. - */ -#define USB_CFG_DEVICE_NAME 'U', 'S', 'B', 'a', 's', 'p' -#define USB_CFG_DEVICE_NAME_LEN 6 -/* Same as above for the device name. If you don't want a device name, undefine - * the macros. See the file USBID-License.txt before you assign a name. - */ -/*#define USB_CFG_SERIAL_NUMBER 'N', 'o', 'n', 'e' */ -/*#define USB_CFG_SERIAL_NUMBER_LEN 0 */ -/* Same as above for the serial number. If you don't want a serial number, - * undefine the macros. - * It may be useful to provide the serial number through other means than at - * compile time. See the section about descriptor properties below for how - * to fine tune control over USB descriptors such as the string descriptor - * for the serial number. - */ -#define USB_CFG_DEVICE_CLASS 0xff /* set to 0 if deferred to interface */ -#define USB_CFG_DEVICE_SUBCLASS 0 -/* See USB specification if you want to conform to an existing device class. - * Class 0xff is "vendor specific". - */ -#define USB_CFG_INTERFACE_CLASS 0 /* define class here if not at device level */ -#define USB_CFG_INTERFACE_SUBCLASS 0 -#define USB_CFG_INTERFACE_PROTOCOL 0 -/* See USB specification if you want to conform to an existing device class or - * protocol. The following classes must be set at interface level: - * HID class is 3, no subclass and protocol required (but may be useful!) - * CDC class is 2, use subclass 2 and protocol 1 for ACM - */ -/* #define USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH 42 */ -/* Define this to the length of the HID report descriptor, if you implement - * an HID device. Otherwise don't define it or define it to 0. - * If you use this define, you must add a PROGMEM character array named - * "usbHidReportDescriptor" to your code which contains the report descriptor. - * Don't forget to keep the array and this define in sync! - */ - -#define USB_PUBLIC static -/* Use the define above if you #include usbdrv.c instead of linking against it. - * This technique saves a couple of bytes in flash memory. - */ - -/* ------------------- Fine Control over USB Descriptors ------------------- */ -/* If you don't want to use the driver's default USB descriptors, you can - * provide our own. These can be provided as (1) fixed length static data in - * flash memory, (2) fixed length static data in RAM or (3) dynamically at - * runtime in the function usbFunctionDescriptor(). See usbdrv.h for more - * information about this function. - * Descriptor handling is configured through the descriptor's properties. If - * no properties are defined or if they are 0, the default descriptor is used. - * Possible properties are: - * + USB_PROP_IS_DYNAMIC: The data for the descriptor should be fetched - * at runtime via usbFunctionDescriptor(). - * + USB_PROP_IS_RAM: The data returned by usbFunctionDescriptor() or found - * in static memory is in RAM, not in flash memory. - * + USB_PROP_LENGTH(len): If the data is in static memory (RAM or flash), - * the driver must know the descriptor's length. The descriptor itself is - * found at the address of a well known identifier (see below). - * List of static descriptor names (must be declared PROGMEM if in flash): - * char usbDescriptorDevice[]; - * char usbDescriptorConfiguration[]; - * char usbDescriptorHidReport[]; - * char usbDescriptorString0[]; - * int usbDescriptorStringVendor[]; - * int usbDescriptorStringDevice[]; - * int usbDescriptorStringSerialNumber[]; - * Other descriptors can't be provided statically, they must be provided - * dynamically at runtime. - * - * Descriptor properties are or-ed or added together, e.g.: - * #define USB_CFG_DESCR_PROPS_DEVICE (USB_PROP_IS_RAM | USB_PROP_LENGTH(18)) - * - * The following descriptors are defined: - * USB_CFG_DESCR_PROPS_DEVICE - * USB_CFG_DESCR_PROPS_CONFIGURATION - * USB_CFG_DESCR_PROPS_STRINGS - * USB_CFG_DESCR_PROPS_STRING_0 - * USB_CFG_DESCR_PROPS_STRING_VENDOR - * USB_CFG_DESCR_PROPS_STRING_PRODUCT - * USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER - * USB_CFG_DESCR_PROPS_HID - * USB_CFG_DESCR_PROPS_HID_REPORT - * USB_CFG_DESCR_PROPS_UNKNOWN (for all descriptors not handled by the driver) - * - */ - -#define USB_CFG_DESCR_PROPS_DEVICE 0 -#define USB_CFG_DESCR_PROPS_CONFIGURATION 0 -#define USB_CFG_DESCR_PROPS_STRINGS 0 -#define USB_CFG_DESCR_PROPS_STRING_0 0 -#define USB_CFG_DESCR_PROPS_STRING_VENDOR 0 -#define USB_CFG_DESCR_PROPS_STRING_PRODUCT 0 -#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER 0 -#define USB_CFG_DESCR_PROPS_HID 0 -#define USB_CFG_DESCR_PROPS_HID_REPORT 0 -#define USB_CFG_DESCR_PROPS_UNKNOWN 0 - -/* ----------------------- Optional MCU Description ------------------------ */ - -/* The following configurations have working defaults in usbdrv.h. You - * usually don't need to set them explicitly. Only if you want to run - * the driver on a device which is not yet supported or with a compiler - * which is not fully supported (such as IAR C) or if you use a differnt - * interrupt than INT0, you may have to define some of these. - */ -/* #define USB_INTR_CFG MCUCR */ -/* #define USB_INTR_CFG_SET ((1 << ISC00) | (1 << ISC01)) */ -/* #define USB_INTR_CFG_CLR 0 */ -/* #define USB_INTR_ENABLE GIMSK */ -/* #define USB_INTR_ENABLE_BIT INT0 */ -/* #define USB_INTR_PENDING GIFR */ -/* #define USB_INTR_PENDING_BIT INTF0 */ - -#endif /* __usbconfig_h_included__ */ diff --git a/tools/usbload/usbdrv/Changelog.txt b/tools/usbload/usbdrv/Changelog.txt deleted file mode 100644 index 186d066..0000000 --- a/tools/usbload/usbdrv/Changelog.txt +++ /dev/null @@ -1,233 +0,0 @@ -This file documents changes in the firmware-only USB driver for atmel's AVR -microcontrollers. New entries are always appended to the end of the file. -Scroll down to the bottom to see the most recent changes. - -2005-04-01: - - Implemented endpoint 1 as interrupt-in endpoint. - - Moved all configuration options to usbconfig.h which is not part of the - driver. - - Changed interface for usbVendorSetup(). - - Fixed compatibility with ATMega8 device. - - Various minor optimizations. - -2005-04-11: - - Changed interface to application: Use usbFunctionSetup(), usbFunctionRead() - and usbFunctionWrite() now. Added configuration options to choose which - of these functions to compile in. - - Assembler module delivers receive data non-inverted now. - - Made register and bit names compatible with more AVR devices. - -2005-05-03: - - Allow address of usbRxBuf on any memory page as long as the buffer does - not cross 256 byte page boundaries. - - Better device compatibility: works with Mega88 now. - - Code optimization in debugging module. - - Documentation updates. - -2006-01-02: - - Added (free) default Vendor- and Product-IDs bought from voti.nl. - - Added USBID-License.txt file which defines the rules for using the free - shared VID/PID pair. - - Added Readme.txt to the usbdrv directory which clarifies administrative - issues. - -2006-01-25: - - Added "configured state" to become more standards compliant. - - Added "HALT" state for interrupt endpoint. - - Driver passes the "USB Command Verifier" test from usb.org now. - - Made "serial number" a configuration option. - - Minor optimizations, we now recommend compiler option "-Os" for best - results. - - Added a version number to usbdrv.h - -2006-02-03: - - New configuration variable USB_BUFFER_SECTION for the memory section where - the USB rx buffer will go. This defaults to ".bss" if not defined. Since - this buffer MUST NOT cross 256 byte pages (not even touch a page at the - end), the user may want to pass a linker option similar to - "-Wl,--section-start=.mybuffer=0x800060". - - Provide structure for usbRequest_t. - - New defines for USB constants. - - Prepared for HID implementations. - - Increased data size limit for interrupt transfers to 8 bytes. - - New macro usbInterruptIsReady() to query interrupt buffer state. - -2006-02-18: - - Ensure that the data token which is sent as an ack to an OUT transfer is - always zero sized. This fixes a bug where the host reports an error after - sending an out transfer to the device, although all data arrived at the - device. - - Updated docs in usbdrv.h to reflect changed API in usbFunctionWrite(). - -* Release 2006-02-20 - - - Give a compiler warning when compiling with debugging turned on. - - Added Oleg Semyonov's changes for IAR-cc compatibility. - - Added new (optional) functions usbDeviceConnect() and usbDeviceDisconnect() - (also thanks to Oleg!). - - Rearranged tests in usbPoll() to save a couple of instructions in the most - likely case that no actions are pending. - - We need a delay between the SET ADDRESS request until the new address - becomes active. This delay was handled in usbPoll() until now. Since the - spec says that the delay must not exceed 2ms, previous versions required - aggressive polling during the enumeration phase. We have now moved the - handling of the delay into the interrupt routine. - - We must not reply with NAK to a SETUP transaction. We can only achieve this - by making sure that the rx buffer is empty when SETUP tokens are expected. - We therefore don't pass zero sized data packets from the status phase of - a transfer to usbPoll(). This change MAY cause troubles if you rely on - receiving a less than 8 bytes long packet in usbFunctionWrite() to - identify the end of a transfer. usbFunctionWrite() will NEVER be called - with a zero length. - -* Release 2006-03-14 - - - Improved IAR C support: tiny memory model, more devices - - Added template usbconfig.h file under the name usbconfig-prototype.h - -* Release 2006-03-26 - - - Added provision for one more interrupt-in endpoint (endpoint 3). - - Added provision for one interrupt-out endpoint (endpoint 1). - - Added flowcontrol macros for USB. - - Added provision for custom configuration descriptor. - - Allow ANY two port bits for D+ and D-. - - Merged (optional) receive endpoint number into global usbRxToken variable. - - Use USB_CFG_IOPORTNAME instead of USB_CFG_IOPORT. We now construct the - variable name from the single port letter instead of computing the address - of related ports from the output-port address. - -* Release 2006-06-26 - - - Updated documentation in usbdrv.h and usbconfig-prototype.h to reflect the - new features. - - Removed "#warning" directives because IAR does not understand them. Use - unused static variables instead to generate a warning. - - Do not include when compiling with IAR. - - Introduced USB_CFG_DESCR_PROPS_* in usbconfig.h to configure how each - USB descriptor should be handled. It is now possible to provide descriptor - data in Flash, RAM or dynamically at runtime. - - STALL is now a status in usbTxLen* instead of a message. We can now conform - to the spec and leave the stall status pending until it is cleared. - - Made usbTxPacketCnt1 and usbTxPacketCnt3 public. This allows the - application code to reset data toggling on interrupt pipes. - -* Release 2006-07-18 - - - Added an #if !defined __ASSEMBLER__ to the warning in usbdrv.h. This fixes - an assembler error. - - usbDeviceDisconnect() takes pull-up resistor to high impedance now. - -* Release 2007-02-01 - - - Merged in some code size improvements from usbtiny (thanks to Dick - Streefland for these optimizations!) - - Special alignment requirement for usbRxBuf not required any more. Thanks - again to Dick Streefland for this hint! - - Reverted to "#warning" instead of unused static variables -- new versions - of IAR CC should handle this directive. - - Changed Open Source license to GNU GPL v2 in order to make linking against - other free libraries easier. We no longer require publication of the - circuit diagrams, but we STRONGLY encourage it. If you improve the driver - itself, PLEASE grant us a royalty free license to your changes for our - commercial license. - -* Release 2007-03-29 - - - New configuration option "USB_PUBLIC" in usbconfig.h. - - Set USB version number to 1.10 instead of 1.01. - - Code used USB_CFG_DESCR_PROPS_STRING_DEVICE and - USB_CFG_DESCR_PROPS_STRING_PRODUCT inconsistently. Changed all occurrences - to USB_CFG_DESCR_PROPS_STRING_PRODUCT. - - New assembler module for 16.5 MHz RC oscillator clock with PLL in receiver - code. - - New assembler module for 16 MHz crystal. - - usbdrvasm.S contains common code only, clock-specific parts have been moved - to usbdrvasm12.S, usbdrvasm16.S and usbdrvasm165.S respectively. - -* Release 2007-06-25 - - - 16 MHz module: Do SE0 check in stuffed bits as well. - -* Release 2007-07-07 - - - Define hi8(x) for IAR compiler to limit result to 8 bits. This is necessary - for negative values. - - Added 15 MHz module contributed by V. Bosch. - - Interrupt vector name can now be configured. This is useful if somebody - wants to use a different hardware interrupt than INT0. - -* Release 2007-08-07 - - - Moved handleIn3 routine in usbdrvasm16.S so that relative jump range is - not exceeded. - - More config options: USB_RX_USER_HOOK(), USB_INITIAL_DATATOKEN, - USB_COUNT_SOF - - USB_INTR_PENDING can now be a memory address, not just I/O - -* Release 2007-09-19 - - - Split out common parts of assembler modules into separate include file - - Made endpoint numbers configurable so that given interface definitions - can be matched. See USB_CFG_EP3_NUMBER in usbconfig-prototype.h. - - Store endpoint number for interrupt/bulk-out so that usbFunctionWriteOut() - can handle any number of endpoints. - - Define usbDeviceConnect() and usbDeviceDisconnect() even if no - USB_CFG_PULLUP_IOPORTNAME is defined. Directly set D+ and D- to 0 in this - case. - -* Release 2007-12-01 - - - Optimize usbDeviceConnect() and usbDeviceDisconnect() for less code size - when USB_CFG_PULLUP_IOPORTNAME is not defined. - -* Release 2007-12-13 - - - Renamed all include-only assembler modules from *.S to *.inc so that - people don't add them to their project sources. - - Distribute leap bits in tx loop more evenly for 16 MHz module. - - Use "macro" and "endm" instead of ".macro" and ".endm" for IAR - - Avoid compiler warnings for constant expr range by casting some values in - USB descriptors. - -* Release 2008-01-21 - - - Fixed bug in 15 and 16 MHz module where the new address set with - SET_ADDRESS was already accepted at the next NAK or ACK we send, not at - the next data packet we send. This caused problems when the host polled - too fast. Thanks to Alexander Neumann for his help and patience debugging - this issue! - -* Release 2008-02-05 - - - Fixed bug in 16.5 MHz module where a register was used in the interrupt - handler before it was pushed. This bug was introduced with version - 2007-09-19 when common parts were moved to a separate file. - - Optimized CRC routine (thanks to Reimar Doeffinger). - -* Release 2008-02-16 - - - Removed outdated IAR compatibility stuff (code sections). - - Added hook macros for USB_RESET_HOOK() and USB_SET_ADDRESS_HOOK(). - - Added optional routine usbMeasureFrameLength() for calibration of the - internal RC oscillator. - -* Release 2008-02-28 - - - USB_INITIAL_DATATOKEN defaults to USBPID_DATA1 now, which means that we - start with sending USBPID_DATA0. - - Changed defaults in usbconfig-prototype.h - - Added free USB VID/PID pair for MIDI class devices - - Restructured AVR-USB as separate package, not part of PowerSwitch any more. - -* Release 2008-04-18 - - - Restructured usbdrv.c so that it is easier to read and understand. - - Better code optimization with gcc 4. - - If a second interrupt in endpoint is enabled, also add it to config - descriptor. - - Added config option for long transfers (above 254 bytes), see - USB_CFG_LONG_TRANSFERS in usbconfig.h. - - Added 20 MHz module contributed by Jeroen Benschop. - -* Release 2008-05-13 diff --git a/tools/usbload/usbdrv/CommercialLicense.txt b/tools/usbload/usbdrv/CommercialLicense.txt deleted file mode 100644 index 654f16d..0000000 --- a/tools/usbload/usbdrv/CommercialLicense.txt +++ /dev/null @@ -1,156 +0,0 @@ -AVR-USB Driver Software License Agreement -Version 2008-04-15 - -THIS LICENSE AGREEMENT GRANTS YOU CERTAIN RIGHTS IN A SOFTWARE. YOU CAN -ENTER INTO THIS AGREEMENT AND ACQUIRE THE RIGHTS OUTLINED BELOW BY PAYING -THE AMOUNT ACCORDING TO SECTION 4 ("PAYMENT") TO OBJECTIVE DEVELOPMENT. - - -1 DEFINITIONS - -1.1 "OBJECTIVE DEVELOPMENT" shall mean OBJECTIVE DEVELOPMENT Software GmbH, -Grosse Schiffgasse 1A/7, 1020 Wien, AUSTRIA. - -1.2 "You" shall mean the Licensee. - -1.3 "AVR-USB" shall mean all files included in the package distributed under -the name "avrusb" by OBJECTIVE DEVELOPMENT (http://www.obdev.at/avrusb/) -unless otherwise noted. This includes the firmware-only USB device -implementation for Atmel AVR microcontrollers, some simple device examples -and host side software examples and libraries. - - -2 LICENSE GRANTS - -2.1 Source Code. OBJECTIVE DEVELOPMENT shall furnish you with the source -code of AVR-USB. - -2.2 Distribution and Use. OBJECTIVE DEVELOPMENT grants you the -non-exclusive right to use and distribute AVR-USB with your hardware -product(s), restricted by the limitations in section 3 below. - -2.3 Modifications. OBJECTIVE DEVELOPMENT grants you the right to modify -your copy of AVR-USB according to your needs. - -2.4 USB IDs. OBJECTIVE DEVELOPMENT grants you the exclusive rights to use -USB Product ID(s) sent to you in e-mail after receiving your payment in -conjunction with USB Vendor ID 5824. OBJECTIVE DEVELOPMENT has acquired an -exclusive license for this pair of USB identifiers from Wouter van Ooijen -(www.voti.nl), who has licensed the VID from the USB Implementers Forum, -Inc. (www.usb.org). - - -3 LICENSE RESTRICTIONS - -3.1 Number of Units. Only one of the following three definitions is -applicable. Which one is determined by the amount you pay to OBJECTIVE -DEVELOPMENT, see section 4 ("Payment") below. - -Hobby License: You may use AVR-USB according to section 2 above in no more -than 5 hardware units. These units must not be sold for profit. - -Entry Level License: You may use AVR-USB according to section 2 above in no -more than 150 hardware units. - -Professional License: You may use AVR-USB according to section 2 above in -any number of hardware units, except for large scale production ("unlimited -fair use"). Quantities below 10,000 units are not considered large scale -production. If your reach quantities which are obviously large scale -production, you must pay a license fee of 0.10 EUR per unit for all units -above 10,000. - -3.2 Rental. You may not rent, lease, or lend AVR-USB or otherwise encumber -any copy of AVR-USB, or any of the rights granted herein. - -3.3 Transfer. You may not transfer your rights under this Agreement to -another party without OBJECTIVE DEVELOPMENT's prior written consent. If -such consent is obtained, you may permanently transfer this License to -another party. The recipient of such transfer must agree to all terms and -conditions of this Agreement. - -3.4 Reservation of Rights. OBJECTIVE DEVELOPMENT retains all rights not -expressly granted. - -3.5 Non-Exclusive Rights. Your license rights under this Agreement are -non-exclusive. - -3.6 Third Party Rights. This Agreement cannot grant you rights controlled -by third parties. In particular, you are not allowed to use the USB logo or -other trademarks owned by the USB Implementers Forum, Inc. without their -consent. Since such consent depends on USB certification, it should be -noted that AVR-USB will not pass certification because it does not -implement checksum verification and the microcontroller ports do not meet -the electrical specifications. - - -4 PAYMENT - -The payment amount depends on the variation of this agreement (according to -section 3.1) into which you want to enter. Concrete prices are listed on -OBJECTIVE DEVELOPMENT's web site, usually at -http://www.obdev.at/avrusb/license.html. You agree to pay the amount listed -there to OBJECTIVE DEVELOPMENT or OBJECTIVE DEVELOPMENT's payment processor -or reseller. - - -5 COPYRIGHT AND OWNERSHIP - -AVR-USB is protected by copyright laws and international copyright -treaties, as well as other intellectual property laws and treaties. AVR-USB -is licensed, not sold. - - -6 TERM AND TERMINATION - -6.1 Term. This Agreement shall continue indefinitely. However, OBJECTIVE -DEVELOPMENT may terminate this Agreement and revoke the granted license and -USB-IDs if you fail to comply with any of its terms and conditions. - -6.2 Survival of Terms. All provisions regarding secrecy, confidentiality -and limitation of liability shall survive termination of this agreement. - - -7 DISCLAIMER OF WARRANTY AND LIABILITY - -LIMITED WARRANTY. AVR-USB IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY -KIND. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, OBJECTIVE -DEVELOPMENT AND ITS SUPPLIERS HEREBY DISCLAIM ALL WARRANTIES, EITHER -EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES -OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE, AND -NON-INFRINGEMENT, WITH REGARD TO AVR-USB, AND THE PROVISION OF OR FAILURE -TO PROVIDE SUPPORT SERVICES. THIS LIMITED WARRANTY GIVES YOU SPECIFIC LEGAL -RIGHTS. YOU MAY HAVE OTHERS, WHICH VARY FROM STATE/JURISDICTION TO -STATE/JURISDICTION. - -LIMITATION OF LIABILITY. TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, -IN NO EVENT SHALL OBJECTIVE DEVELOPMENT OR ITS SUPPLIERS BE LIABLE FOR ANY -SPECIAL, INCIDENTAL, INDIRECT, OR CONSEQUENTIAL DAMAGES WHATSOEVER -(INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS PROFITS, -BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR ANY OTHER PECUNIARY -LOSS) ARISING OUT OF THE USE OF OR INABILITY TO USE AVR-USB OR THE -PROVISION OF OR FAILURE TO PROVIDE SUPPORT SERVICES, EVEN IF OBJECTIVE -DEVELOPMENT HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. IN ANY -CASE, OBJECTIVE DEVELOPMENT'S ENTIRE LIABILITY UNDER ANY PROVISION OF THIS -AGREEMENT SHALL BE LIMITED TO THE AMOUNT ACTUALLY PAID BY YOU FOR AVR-USB. - - -8 MISCELLANEOUS TERMS - -8.1 Marketing. OBJECTIVE DEVELOPMENT has the right to mention for marketing -purposes that you entered into this agreement. - -8.2 Entire Agreement. This document represents the entire agreement between -OBJECTIVE DEVELOPMENT and you. It may only be modified in writing signed by -an authorized representative of both, OBJECTIVE DEVELOPMENT and you. - -8.3 Severability. In case a provision of these terms and conditions should -be or become partly or entirely invalid, ineffective, or not executable, -the validity of all other provisions shall not be affected. - -8.4 Applicable Law. This agreement is governed by the laws of the Republic -of Austria. - -8.5 Responsible Courts. The responsible courts in Vienna/Austria will have -exclusive jurisdiction regarding all disputes in connection with this -agreement. - diff --git a/tools/usbload/usbdrv/License.txt b/tools/usbload/usbdrv/License.txt deleted file mode 100644 index f6a232e..0000000 --- a/tools/usbload/usbdrv/License.txt +++ /dev/null @@ -1,359 +0,0 @@ -OBJECTIVE DEVELOPMENT GmbH's AVR-USB driver software is distributed under the -terms and conditions of the GNU GPL version 2, see the text below. In addition -to the requirements in the GPL, we STRONGLY ENCOURAGE you to do the following: - -(1) Publish your entire project on a web site and drop us a note with the URL. -Use the form at http://www.obdev.at/avrusb/feedback.html for your submission. - -(2) Adhere to minimum publication standards. Please include AT LEAST: - - a circuit diagram in PDF, PNG or GIF format - - full source code for the host software - - a Readme.txt file in ASCII format which describes the purpose of the - project and what can be found in which directories and which files - - a reference to http://www.obdev.at/avrusb/ - -(3) If you improve the driver firmware itself, please give us a free license -to your modifications for our commercial license offerings. - - - - GNU GENERAL PUBLIC LICENSE - Version 2, June 1991 - - Copyright (C) 1989, 1991 Free Software Foundation, Inc. - 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - Everyone is permitted to copy and distribute verbatim copies - of this license document, but changing it is not allowed. - - Preamble - - The licenses for most software are designed to take away your -freedom to share and change it. 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If this is what you want to do, use the GNU Library General -Public License instead of this License. diff --git a/tools/usbload/usbdrv/Readme.txt b/tools/usbload/usbdrv/Readme.txt deleted file mode 100644 index cb1a70e..0000000 --- a/tools/usbload/usbdrv/Readme.txt +++ /dev/null @@ -1,146 +0,0 @@ -This is the Readme file to Objective Development's firmware-only USB driver -for Atmel AVR microcontrollers. For more information please visit -http://www.obdev.at/avrusb/ - -This directory contains the USB firmware only. Copy it as-is to your own -project and add all .c and .S files to your project (these files are marked -with an asterisk in the list below). Then copy usbconfig-prototype.h as -usbconfig.h to your project and edit it according to your configuration. - - -TECHNICAL DOCUMENTATION -======================= -The technical documentation (API) for the firmware driver is contained in the -file "usbdrv.h". Please read all of it carefully! Configuration options are -documented in "usbconfig-prototype.h". - -The driver consists of the following files: - Readme.txt ............. The file you are currently reading. - Changelog.txt .......... Release notes for all versions of the driver. - usbdrv.h ............... Driver interface definitions and technical docs. -* usbdrv.c ............... High level language part of the driver. Link this - module to your code! -* usbdrvasm.S ............ Assembler part of the driver. This module is mostly - a stub and includes one of the usbdrvasm*.S files - depending on processor clock. Link this module to - your code! - usbdrvasm*.inc ......... Assembler routines for particular clock frequencies. - Included by usbdrvasm.S, don't link it directly! - asmcommon.inc .......... Common assembler routines. Included by - usbdrvasm*.inc, don't link it directly! - usbconfig-prototype.h .. Prototype for your own usbdrv.h file. -* oddebug.c .............. Debug functions. Only used when DEBUG_LEVEL is - defined to a value greater than 0. Link this module - to your code! - oddebug.h .............. Interface definitions of the debug module. - iarcompat.h ............ Compatibility definitions for IAR C-compiler. - usbdrvasm.asm .......... Compatibility stub for IAR-C-compiler. Use this - module instead of usbdrvasm.S when you assembler - with IAR's tools. - License.txt ............ Open Source license for this driver. - CommercialLicense.txt .. Optional commercial license for this driver. - USBID-License.txt ...... Terms and conditions for using particular USB ID - values for particular purposes. - -(*) ... These files should be linked to your project. - - -CPU CORE CLOCK FREQUENCY -======================== -We supply assembler modules for clock frequencies of 12 MHz, 15 MHz, 16 MHz and -16.5 MHz. Other clock rates are not supported. The actual clock rate must be -configured in usbdrv.h unless you use the default 12 MHz. - -12 MHz Clock -This is the traditional clock rate of AVR-USB because it's the lowest clock -rate where the timing constraints of the USB spec can be met. - -15 MHz Clock -Similar to 12 MHz, but some NOPs inserted. On the other hand, the higher clock -rate allows for some loops which make the resulting code size somewhat smaller -than the 12 MHz version. - -16 MHz Clock -This clock rate has been added for users of the Arduino board and other -ready-made boards which come with a fixed 16 MHz crystal. It's also an option -if you need the slightly higher clock rate for performance reasons. Since -16 MHz is not divisible by the USB low speed bit clock of 1.5 MHz, the code -is somewhat tricky and has to insert a leap cycle every third byte. - -16.5 MHz Clock -The assembler module for this clock rate differs from the other modules because -it has been built for an RC oscillator with only 1% precision. The receiver -code inserts leap cycles to compensate for clock deviations. 1% is also the -precision which can be achieved by calibrating the internal RC oscillator of -the AVR. Please note that only AVRs with internal 64 MHz PLL oscillator can be -used since the 8 MHz RC oscillator cannot be trimmed up to 16.5 MHz. This -includes the very popular ATTiny25, ATTiny45, ATTiny85 series as well as the -ATTiny26. - -See the EasyLogger example at http://www.obdev.at/avrusb/easylogger.html for -code which calibrates the RC oscillator based on the USB frame clock. - -20 MHz Clock -This module is for people who won't do it with less than the maximum. Since -20 MHz is not divisible by the USB low speed bit clock of 1.5 MHz, the code -uses similar tricks as the 16 MHz module to insert leap cycles. - - -USB IDENTIFIERS -=============== -Every USB device needs a vendor- and a product-identifier (VID and PID). VIDs -are obtained from usb.org for a price of 1,500 USD. Once you have a VID, you -can assign PIDs at will. - -Since an entry level cost of 1,500 USD is too high for most small companies -and hobbyists, we provide some VID/PID pairs for free. See the file -USBID-License.txt for details. - -Objective Development also has some license offerings which include product -IDs. See http://www.obdev.at/avrusb/ for details. - - -DEVELOPMENT SYSTEM -================== -This driver has been developed and optimized for the GNU compiler version 3 -(gcc 3). It does work well with gcc 4, but with bigger code size. We recommend -that you use the GNU compiler suite because it is freely available. AVR-USB -has also been ported to the IAR compiler and assembler. It has been tested -with IAR 4.10B/W32 and 4.12A/W32 on an ATmega8 with the "small" and "tiny" -memory model. Not every release is tested with IAR CC and the driver may -therefore fail to compile with IAR. Please note that gcc is more efficient for -usbdrv.c because this module has been deliberately optimized for gcc. - - -USING AVR-USB FOR FREE -====================== -The AVR firmware driver is published under the GNU General Public License -Version 2 (GPL2). See the file "License.txt" for details. - -If you decide for the free GPL2, we STRONGLY ENCOURAGE you to do the following -things IN ADDITION to the obligations from the GPL2: - -(1) Publish your entire project on a web site and drop us a note with the URL. -Use the form at http://www.obdev.at/avrusb/feedback.html for your submission. -If you don't have a web site, you can publish the project in obdev's -documentation wiki at -http://www.obdev.at/goto.php?t=avrusb-wiki&p=hosted-projects. - -(2) Adhere to minimum publication standards. Please include AT LEAST: - - a circuit diagram in PDF, PNG or GIF format - - full source code for the host software - - a Readme.txt file in ASCII format which describes the purpose of the - project and what can be found in which directories and which files - - a reference to http://www.obdev.at/avrusb/ - -(3) If you improve the driver firmware itself, please give us a free license -to your modifications for our commercial license offerings. - - -COMMERCIAL LICENSES FOR AVR-USB -=============================== -If you don't want to publish your source code under the terms of the GPL2, -you can simply pay money for AVR-USB. As an additional benefit you get -USB PIDs for free, licensed exclusively to you. See the file -"CommercialLicense.txt" for details. - diff --git a/tools/usbload/usbdrv/USBID-License.txt b/tools/usbload/usbdrv/USBID-License.txt deleted file mode 100644 index 984c9ee..0000000 --- a/tools/usbload/usbdrv/USBID-License.txt +++ /dev/null @@ -1,146 +0,0 @@ -Royalty-Free Non-Exclusive License USB Product-ID -================================================= - -Version 2008-04-07 - -OBJECTIVE DEVELOPMENT Software GmbH hereby grants you the non-exclusive -right to use three USB.org vendor-ID (VID) / product-ID (PID) pairs with -products based on Objective Development's firmware-only USB driver for -Atmel AVR microcontrollers: - - * VID = 5824 (=0x16c0) / PID = 1500 (=0x5dc) for devices implementing no - USB device class (vendor-class devices with USB class = 0xff). Devices - using this pair will be referred to as "VENDOR CLASS" devices. - - * VID = 5824 (=0x16c0) / PID = 1503 (=0x5df) for HID class devices - (excluding mice and keyboards). Devices using this pair will be referred - to as "HID CLASS" devices. - - * VID = 5824 (=0x16c0) / PID = 1505 (=0x5e1) for CDC class modem devices - Devices using this pair will be referred to as "CDC-ACM CLASS" devices. - - * VID = 5824 (=0x16c0) / PID = 1508 (=0x5e4) for MIDI class devices - Devices using this pair will be referred to as "MIDI CLASS" devices. - -Since the granted right is non-exclusive, the same VID/PID pairs may be -used by many companies and individuals for different products. To avoid -conflicts, your device and host driver software MUST adhere to the rules -outlined below. - -OBJECTIVE DEVELOPMENT Software GmbH has licensed these VID/PID pairs from -Wouter van Ooijen (see www.voti.nl), who has licensed the VID from the USB -Implementers Forum, Inc. (see www.usb.org). The VID is registered for the -company name "Van Ooijen Technische Informatica". - - -RULES AND RESTRICTIONS -====================== - -(1) The USB device MUST provide a textual representation of the -manufacturer and product identification. The manufacturer identification -MUST be available at least in USB language 0x0409 (English/US). - -(2) The textual manufacturer identification MUST contain either an Internet -domain name (e.g. "mycompany.com") registered and owned by you, or an -e-mail address under your control (e.g. "myname@gmx.net"). You can embed -the domain name or e-mail address in any string you like, e.g. "Objective -Development http://www.obdev.at/avrusb/". - -(3) You are responsible for retaining ownership of the domain or e-mail -address for as long as any of your products are in use. - -(4) You may choose any string for the textual product identification, as -long as this string is unique within the scope of your textual manufacturer -identification. - -(5) Matching of device-specific drivers MUST be based on the textual -manufacturer and product identification in addition to the usual VID/PID -matching. This means that operating system features which are based on -VID/PID matching only (e.g. Windows kernel level drivers, automatic actions -when the device is plugged in etc) MUST NOT be used. The driver matching -MUST be a comparison of the entire strings, NOT a sub-string match. For -CDC-ACM CLASS and MIDI CLASS devices, a generic class driver should be used -and the matching is based on the USB device class. - -(6) The extent to which VID/PID matching is allowed for non device-specific -drivers or features depends on the operating system and particular VID/PID -pair used: - - * Mac OS X, Linux, FreeBSD and other Unixes: No VID/PID matching is - required and hence no VID/PID-only matching is allowed at all. - - * Windows: The operating system performs VID/PID matching for the kernel - level driver. You are REQUIRED to use libusb-win32 (see - http://libusb-win32.sourceforge.net/) as the kernel level driver for - VENDOR CLASS devices. HID CLASS devices all use the generic HID class - driver shipped with Windows, except mice and keyboards. You therefore - MUST NOT use any of the shared VID/PID pairs for mice or keyboards. - CDC-ACM CLASS devices require a ".inf" file which matches on the VID/PID - pair. This ".inf" file MUST load the "usbser" driver to configure the - device as modem (COM-port). - -(7) OBJECTIVE DEVELOPMENT Software GmbH disclaims all liability for any -problems which are caused by the shared use of these VID/PID pairs. You -have been warned that the sharing of VID/PID pairs may cause problems. If -you want to avoid them, get your own VID/PID pair for exclusive use. - - -HOW TO IMPLEMENT THESE RULES -============================ - -The following rules are for VENDOR CLASS and HID CLASS devices. CDC-ACM -CLASS and MIDI CLASS devices use the operating system's class driver and -don't need a custom driver. - -The host driver MUST iterate over all devices with the given VID/PID -numbers in their device descriptors and query the string representation for -the manufacturer name in USB language 0x0409 (English/US). It MUST compare -the ENTIRE string with your textual manufacturer identification chosen in -(2) above. A substring search for your domain or e-mail address is NOT -acceptable. The driver MUST NOT touch the device (other than querying the -descriptors) unless the strings match. - -For all USB devices with matching VID/PID and textual manufacturer -identification, the host driver must query the textual product -identification and string-compare it with the name of the product it can -control. It may only initialize the device if the product matches exactly. - -Objective Development provides examples for these matching rules with the -"PowerSwitch" project (using libusb) and with the "Automator" project -(using Windows calls on Windows and libusb on Unix). - - -Technical Notes: -================ - -Sharing the same VID/PID pair among devices is possible as long as ALL -drivers which match the VID/PID also perform matching on the textual -identification strings. This is easy on all operating systems except -Windows, since Windows establishes a static connection between the VID/PID -pair and a kernel level driver. All devices with the same VID/PID pair must -therefore use THE SAME kernel level driver. - -We therefore demand that you use libusb-win32 for VENDOR CLASS devices. -This is a generic kernel level driver which allows all types of USB access -for user space applications. This is only a partial solution of the -problem, though, because different device drivers may come with different -versions of libusb-win32 and they may not work with the libusb version of -the respective other driver. You are therefore encouraged to test your -driver against a broad range of libusb-win32 versions. Do not use new -features in new versions, or check for their existence before you use them. -When a new libusb-win32 becomes available, make sure that your driver is -compatible with it. - -For HID CLASS devices it is necessary that all those devices bind to the -same kernel driver: Microsoft's generic USB HID driver. This is true for -all HID devices except those with a specialized driver. Currently, the only -HIDs with specialized drivers are mice and keyboards. You therefore MUST -NOT use a shared VID/PID with mouse and keyboard devices. - -Sharing the same VID/PID among different products is unusual and probably -violates the USB specification. If you do it, you do it at your own risk. - -To avoid possible incompatibilities, we highly recommend that you get your -own VID/PID pair if you intend to sell your product. Objective -Development's commercial licenses for AVR-USB include a PID for -unrestricted exclusive use. diff --git a/tools/usbload/usbdrv/asmcommon.inc b/tools/usbload/usbdrv/asmcommon.inc deleted file mode 100644 index 819c0bd..0000000 --- a/tools/usbload/usbdrv/asmcommon.inc +++ /dev/null @@ -1,178 +0,0 @@ -/* Name: asmcommon.inc - * Project: AVR USB driver - * Author: Christian Starkjohann - * Creation Date: 2007-11-05 - * Tabsize: 4 - * Copyright: (c) 2007 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * Revision: $Id$ - */ - -/* Do not link this file! Link usbdrvasm.S instead, which includes the - * appropriate implementation! - */ - -/* -General Description: -This file contains assembler code which is shared among the USB driver -implementations for different CPU cocks. Since the code must be inserted -in the middle of the module, it's split out into this file and #included. - -Jump destinations called from outside: - sofError: Called when no start sequence was found. - se0: Called when a package has been successfully received. - overflow: Called when receive buffer overflows. - doReturn: Called after sending data. - -Outside jump destinations used by this module: - waitForJ: Called to receive an already arriving packet. - sendAckAndReti: - sendNakAndReti: - sendCntAndReti: - usbSendAndReti: - -The following macros must be defined before this file is included: - .macro POP_STANDARD - .endm - .macro POP_RETI - .endm -*/ - -#define token x1 - -overflow: - ldi x2, 1< -#ifndef __IAR_SYSTEMS_ASM__ -# include -#endif - -#define __attribute__(arg) - -#ifdef __IAR_SYSTEMS_ASM__ -# define __ASSEMBLER__ -#endif - -#ifdef __HAS_ELPM__ -# define PROGMEM __farflash -#else -# define PROGMEM __flash -#endif - -#define PRG_RDB(addr) (*(PROGMEM char *)(addr)) - -/* The following definitions are not needed by the driver, but may be of some - * help if you port a gcc based project to IAR. - */ -#define cli() __disable_interrupt() -#define sei() __enable_interrupt() -#define wdt_reset() __watchdog_reset() - -/* Depending on the device you use, you may get problems with the way usbdrv.h - * handles the differences between devices. Since IAR does not use #defines - * for MCU registers, we can't check for the existence of a particular - * register with an #ifdef. If the autodetection mechanism fails, include - * definitions for the required USB_INTR_* macros in your usbconfig.h. See - * usbconfig-prototype.h and usbdrv.h for details. - */ - -#endif /* defined __IAR_SYSTEMS_ICC__ || defined __IAR_SYSTEMS_ASM__ */ -#endif /* __iarcompat_h_INCLUDED__ */ diff --git a/tools/usbload/usbdrv/oddebug.c b/tools/usbload/usbdrv/oddebug.c deleted file mode 100644 index bd528e2..0000000 --- a/tools/usbload/usbdrv/oddebug.c +++ /dev/null @@ -1,50 +0,0 @@ -/* Name: oddebug.c - * Project: AVR library - * Author: Christian Starkjohann - * Creation Date: 2005-01-16 - * Tabsize: 4 - * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * This Revision: $Id: oddebug.c 275 2007-03-20 09:58:28Z cs $ - */ - -#include "oddebug.h" - -#if DEBUG_LEVEL > 0 - -#warning "Never compile production devices with debugging enabled" - -static void uartPutc(char c) -{ - while(!(ODDBG_USR & (1 << ODDBG_UDRE))); /* wait for data register empty */ - ODDBG_UDR = c; -} - -static uchar hexAscii(uchar h) -{ - h &= 0xf; - if(h >= 10) - h += 'a' - (uchar)10 - '0'; - h += '0'; - return h; -} - -static void printHex(uchar c) -{ - uartPutc(hexAscii(c >> 4)); - uartPutc(hexAscii(c)); -} - -void odDebug(uchar prefix, uchar *data, uchar len) -{ - printHex(prefix); - uartPutc(':'); - while(len--){ - uartPutc(' '); - printHex(*data++); - } - uartPutc('\r'); - uartPutc('\n'); -} - -#endif diff --git a/tools/usbload/usbdrv/oddebug.h b/tools/usbload/usbdrv/oddebug.h deleted file mode 100644 index 1b11ef0..0000000 --- a/tools/usbload/usbdrv/oddebug.h +++ /dev/null @@ -1,126 +0,0 @@ -/* Name: oddebug.h - * Project: AVR library - * Author: Christian Starkjohann - * Creation Date: 2005-01-16 - * Tabsize: 4 - * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * This Revision: $Id: oddebug.h 275 2007-03-20 09:58:28Z cs $ - */ - -#ifndef __oddebug_h_included__ -#define __oddebug_h_included__ - -/* -General Description: -This module implements a function for debug logs on the serial line of the -AVR microcontroller. Debugging can be configured with the define -'DEBUG_LEVEL'. If this macro is not defined or defined to 0, all debugging -calls are no-ops. If it is 1, DBG1 logs will appear, but not DBG2. If it is -2, DBG1 and DBG2 logs will be printed. - -A debug log consists of a label ('prefix') to indicate which debug log created -the output and a memory block to dump in hex ('data' and 'len'). -*/ - - -#ifndef F_CPU -# define F_CPU 12000000 /* 12 MHz */ -#endif - -/* make sure we have the UART defines: */ -#include "iarcompat.h" -#ifndef __IAR_SYSTEMS_ICC__ -# include -#endif - -#ifndef uchar -# define uchar unsigned char -#endif - -#if DEBUG_LEVEL > 0 && !(defined TXEN || defined TXEN0) /* no UART in device */ -# warning "Debugging disabled because device has no UART" -# undef DEBUG_LEVEL -#endif - -#ifndef DEBUG_LEVEL -# define DEBUG_LEVEL 0 -#endif - -/* ------------------------------------------------------------------------- */ - -#if DEBUG_LEVEL > 0 -# define DBG1(prefix, data, len) odDebug(prefix, data, len) -#else -# define DBG1(prefix, data, len) -#endif - -#if DEBUG_LEVEL > 1 -# define DBG2(prefix, data, len) odDebug(prefix, data, len) -#else -# define DBG2(prefix, data, len) -#endif - -/* ------------------------------------------------------------------------- */ - -#if DEBUG_LEVEL > 0 -extern void odDebug(uchar prefix, uchar *data, uchar len); - -/* Try to find our control registers; ATMEL likes to rename these */ - -#if defined UBRR -# define ODDBG_UBRR UBRR -#elif defined UBRRL -# define ODDBG_UBRR UBRRL -#elif defined UBRR0 -# define ODDBG_UBRR UBRR0 -#elif defined UBRR0L -# define ODDBG_UBRR UBRR0L -#endif - -#if defined UCR -# define ODDBG_UCR UCR -#elif defined UCSRB -# define ODDBG_UCR UCSRB -#elif defined UCSR0B -# define ODDBG_UCR UCSR0B -#endif - -#if defined TXEN -# define ODDBG_TXEN TXEN -#else -# define ODDBG_TXEN TXEN0 -#endif - -#if defined USR -# define ODDBG_USR USR -#elif defined UCSRA -# define ODDBG_USR UCSRA -#elif defined UCSR0A -# define ODDBG_USR UCSR0A -#endif - -#if defined UDRE -# define ODDBG_UDRE UDRE -#else -# define ODDBG_UDRE UDRE0 -#endif - -#if defined UDR -# define ODDBG_UDR UDR -#elif defined UDR0 -# define ODDBG_UDR UDR0 -#endif - -static inline void odDebugInit(void) -{ - ODDBG_UCR |= (1< -# include -#endif -#include "usbdrv.h" -#include "oddebug.h" - -/* -General Description: -This module implements the C-part of the USB driver. See usbdrv.h for a -documentation of the entire driver. -*/ - -/* ------------------------------------------------------------------------- */ - -/* raw USB registers / interface to assembler code: */ -uchar usbRxBuf[2*USB_BUFSIZE]; /* raw RX buffer: PID, 8 bytes data, 2 bytes CRC */ -uchar usbInputBufOffset; /* offset in usbRxBuf used for low level receiving */ -uchar usbDeviceAddr; /* assigned during enumeration, defaults to 0 */ -uchar usbNewDeviceAddr; /* device ID which should be set after status phase */ -uchar usbConfiguration; /* currently selected configuration. Administered by driver, but not used */ -volatile schar usbRxLen; /* = 0; number of bytes in usbRxBuf; 0 means free, -1 for flow control */ -uchar usbCurrentTok; /* last token received or endpoint number for last OUT token if != 0 */ -uchar usbRxToken; /* token for data we received; or endpont number for last OUT */ -volatile uchar usbTxLen = USBPID_NAK; /* number of bytes to transmit with next IN token or handshake token */ -uchar usbTxBuf[USB_BUFSIZE];/* data to transmit with next IN, free if usbTxLen contains handshake token */ -#if USB_COUNT_SOF -volatile uchar usbSofCount; /* incremented by assembler module every SOF */ -#endif -#if USB_CFG_HAVE_INTRIN_ENDPOINT -usbTxStatus_t usbTxStatus1; -# if USB_CFG_HAVE_INTRIN_ENDPOINT3 -usbTxStatus_t usbTxStatus3; -# endif -#endif - -/* USB status registers / not shared with asm code */ -uchar *usbMsgPtr; /* data to transmit next -- ROM or RAM address */ -static usbMsgLen_t usbMsgLen = USB_NO_MSG; /* remaining number of bytes */ -static uchar usbMsgFlags; /* flag values see below */ - -#define USB_FLG_MSGPTR_IS_ROM (1<<6) -#define USB_FLG_USE_USER_RW (1<<7) - -/* -optimizing hints: -- do not post/pre inc/dec integer values in operations -- assign value of PRG_RDB() to register variables and don't use side effects in arg -- use narrow scope for variables which should be in X/Y/Z register -- assign char sized expressions to variables to force 8 bit arithmetics -*/ - -/* -------------------------- String Descriptors --------------------------- */ - -#if USB_CFG_DESCR_PROPS_STRINGS == 0 - -#if USB_CFG_DESCR_PROPS_STRING_0 == 0 -#undef USB_CFG_DESCR_PROPS_STRING_0 -#define USB_CFG_DESCR_PROPS_STRING_0 sizeof(usbDescriptorString0) -PROGMEM char usbDescriptorString0[] = { /* language descriptor */ - 4, /* sizeof(usbDescriptorString0): length of descriptor in bytes */ - 3, /* descriptor type */ - 0x09, 0x04, /* language index (0x0409 = US-English) */ -}; -#endif - -#if USB_CFG_DESCR_PROPS_STRING_VENDOR == 0 && USB_CFG_VENDOR_NAME_LEN -#undef USB_CFG_DESCR_PROPS_STRING_VENDOR -#define USB_CFG_DESCR_PROPS_STRING_VENDOR sizeof(usbDescriptorStringVendor) -PROGMEM int usbDescriptorStringVendor[] = { - USB_STRING_DESCRIPTOR_HEADER(USB_CFG_VENDOR_NAME_LEN), - USB_CFG_VENDOR_NAME -}; -#endif - -#if USB_CFG_DESCR_PROPS_STRING_PRODUCT == 0 && USB_CFG_DEVICE_NAME_LEN -#undef USB_CFG_DESCR_PROPS_STRING_PRODUCT -#define USB_CFG_DESCR_PROPS_STRING_PRODUCT sizeof(usbDescriptorStringDevice) -PROGMEM int usbDescriptorStringDevice[] = { - USB_STRING_DESCRIPTOR_HEADER(USB_CFG_DEVICE_NAME_LEN), - USB_CFG_DEVICE_NAME -}; -#endif - -#if USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER == 0 && USB_CFG_SERIAL_NUMBER_LEN -#undef USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER -#define USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER sizeof(usbDescriptorStringSerialNumber) -PROGMEM int usbDescriptorStringSerialNumber[] = { - USB_STRING_DESCRIPTOR_HEADER(USB_CFG_SERIAL_NUMBER_LEN), - USB_CFG_SERIAL_NUMBER -}; -#endif - -#endif /* USB_CFG_DESCR_PROPS_STRINGS == 0 */ - -/* --------------------------- Device Descriptor --------------------------- */ - -#if USB_CFG_DESCR_PROPS_DEVICE == 0 -#undef USB_CFG_DESCR_PROPS_DEVICE -#define USB_CFG_DESCR_PROPS_DEVICE sizeof(usbDescriptorDevice) -PROGMEM char usbDescriptorDevice[] = { /* USB device descriptor */ - 18, /* sizeof(usbDescriptorDevice): length of descriptor in bytes */ - USBDESCR_DEVICE, /* descriptor type */ - 0x10, 0x01, /* USB version supported */ - USB_CFG_DEVICE_CLASS, - USB_CFG_DEVICE_SUBCLASS, - 0, /* protocol */ - 8, /* max packet size */ - /* the following two casts affect the first byte of the constant only, but - * that's sufficient to avoid a warning with the default values. - */ - (char)USB_CFG_VENDOR_ID,/* 2 bytes */ - (char)USB_CFG_DEVICE_ID,/* 2 bytes */ - USB_CFG_DEVICE_VERSION, /* 2 bytes */ - USB_CFG_DESCR_PROPS_STRING_VENDOR != 0 ? 1 : 0, /* manufacturer string index */ - USB_CFG_DESCR_PROPS_STRING_PRODUCT != 0 ? 2 : 0, /* product string index */ - USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER != 0 ? 3 : 0, /* serial number string index */ - 1, /* number of configurations */ -}; -#endif - -/* ----------------------- Configuration Descriptor ------------------------ */ - -#if USB_CFG_DESCR_PROPS_HID_REPORT != 0 && USB_CFG_DESCR_PROPS_HID == 0 -#undef USB_CFG_DESCR_PROPS_HID -#define USB_CFG_DESCR_PROPS_HID 9 /* length of HID descriptor in config descriptor below */ -#endif - -#if USB_CFG_DESCR_PROPS_CONFIGURATION == 0 -#undef USB_CFG_DESCR_PROPS_CONFIGURATION -#define USB_CFG_DESCR_PROPS_CONFIGURATION sizeof(usbDescriptorConfiguration) -PROGMEM char usbDescriptorConfiguration[] = { /* USB configuration descriptor */ - 9, /* sizeof(usbDescriptorConfiguration): length of descriptor in bytes */ - USBDESCR_CONFIG, /* descriptor type */ - 18 + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT + 7 * USB_CFG_HAVE_INTRIN_ENDPOINT3 + - (USB_CFG_DESCR_PROPS_HID & 0xff), 0, - /* total length of data returned (including inlined descriptors) */ - 1, /* number of interfaces in this configuration */ - 1, /* index of this configuration */ - 0, /* configuration name string index */ -#if USB_CFG_IS_SELF_POWERED - USBATTR_SELFPOWER, /* attributes */ -#else - (char)USBATTR_BUSPOWER, /* attributes */ -#endif - USB_CFG_MAX_BUS_POWER/2, /* max USB current in 2mA units */ -/* interface descriptor follows inline: */ - 9, /* sizeof(usbDescrInterface): length of descriptor in bytes */ - USBDESCR_INTERFACE, /* descriptor type */ - 0, /* index of this interface */ - 0, /* alternate setting for this interface */ - USB_CFG_HAVE_INTRIN_ENDPOINT + USB_CFG_HAVE_INTRIN_ENDPOINT3, /* endpoints excl 0: number of endpoint descriptors to follow */ - USB_CFG_INTERFACE_CLASS, - USB_CFG_INTERFACE_SUBCLASS, - USB_CFG_INTERFACE_PROTOCOL, - 0, /* string index for interface */ -#if (USB_CFG_DESCR_PROPS_HID & 0xff) /* HID descriptor */ - 9, /* sizeof(usbDescrHID): length of descriptor in bytes */ - USBDESCR_HID, /* descriptor type: HID */ - 0x01, 0x01, /* BCD representation of HID version */ - 0x00, /* target country code */ - 0x01, /* number of HID Report (or other HID class) Descriptor infos to follow */ - 0x22, /* descriptor type: report */ - USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH, 0, /* total length of report descriptor */ -#endif -#if USB_CFG_HAVE_INTRIN_ENDPOINT /* endpoint descriptor for endpoint 1 */ - 7, /* sizeof(usbDescrEndpoint) */ - USBDESCR_ENDPOINT, /* descriptor type = endpoint */ - (char)0x81, /* IN endpoint number 1 */ - 0x03, /* attrib: Interrupt endpoint */ - 8, 0, /* maximum packet size */ - USB_CFG_INTR_POLL_INTERVAL, /* in ms */ -#endif -#if USB_CFG_HAVE_INTRIN_ENDPOINT3 /* endpoint descriptor for endpoint 3 */ - 7, /* sizeof(usbDescrEndpoint) */ - USBDESCR_ENDPOINT, /* descriptor type = endpoint */ - (char)0x83, /* IN endpoint number 1 */ - 0x03, /* attrib: Interrupt endpoint */ - 8, 0, /* maximum packet size */ - USB_CFG_INTR_POLL_INTERVAL, /* in ms */ -#endif -}; -#endif - -/* ------------------------------------------------------------------------- */ - -/* We don't use prog_int or prog_int16_t for compatibility with various libc - * versions. Here's an other compatibility hack: - */ -#ifndef PRG_RDB -#define PRG_RDB(addr) pgm_read_byte(addr) -#endif - -/* ------------------------------------------------------------------------- */ - -static inline void usbResetDataToggling(void) -{ -#if USB_CFG_HAVE_INTRIN_ENDPOINT - USB_SET_DATATOKEN1(USB_INITIAL_DATATOKEN); /* reset data toggling for interrupt endpoint */ -# if USB_CFG_HAVE_INTRIN_ENDPOINT3 - USB_SET_DATATOKEN3(USB_INITIAL_DATATOKEN); /* reset data toggling for interrupt endpoint */ -# endif -#endif -} - -static inline void usbResetStall(void) -{ -#if USB_CFG_IMPLEMENT_HALT && USB_CFG_HAVE_INTRIN_ENDPOINT - usbTxLen1 = USBPID_NAK; -#if USB_CFG_HAVE_INTRIN_ENDPOINT3 - usbTxLen3 = USBPID_NAK; -#endif -#endif -} - -/* ------------------------------------------------------------------------- */ - -#if USB_CFG_HAVE_INTRIN_ENDPOINT -static void usbGenericSetInterrupt(uchar *data, uchar len, usbTxStatus_t *txStatus) -{ -uchar *p; -char i; - -#if USB_CFG_IMPLEMENT_HALT - if(usbTxLen1 == USBPID_STALL) - return; -#endif - if(txStatus->len & 0x10){ /* packet buffer was empty */ - txStatus->buffer[0] ^= USBPID_DATA0 ^ USBPID_DATA1; /* toggle token */ - }else{ - txStatus->len = USBPID_NAK; /* avoid sending outdated (overwritten) interrupt data */ - } - p = txStatus->buffer + 1; - i = len; - do{ /* if len == 0, we still copy 1 byte, but that's no problem */ - *p++ = *data++; - }while(--i > 0); /* loop control at the end is 2 bytes shorter than at beginning */ - usbCrc16Append(&txStatus->buffer[1], len); - txStatus->len = len + 4; /* len must be given including sync byte */ - DBG2(0x21 + (((int)txStatus >> 3) & 3), txStatus->buffer, len + 3); -} - -USB_PUBLIC void usbSetInterrupt(uchar *data, uchar len) -{ - usbGenericSetInterrupt(data, len, &usbTxStatus1); -} -#endif - -#if USB_CFG_HAVE_INTRIN_ENDPOINT3 -USB_PUBLIC void usbSetInterrupt3(uchar *data, uchar len) -{ - usbGenericSetInterrupt(data, len, &usbTxStatus3); -} -#endif - -/* ------------------ utilities for code following below ------------------- */ - -/* Use defines for the switch statement so that we can choose between an - * if()else if() and a switch/case based implementation. switch() is more - * efficient for a LARGE set of sequential choices, if() is better in all other - * cases. - */ -#if USB_CFG_USE_SWITCH_STATEMENT -# define SWITCH_START(cmd) switch(cmd){{ -# define SWITCH_CASE(value) }break; case (value):{ -# define SWITCH_CASE2(v1,v2) }break; case (v1): case(v2):{ -# define SWITCH_CASE3(v1,v2,v3) }break; case (v1): case(v2): case(v3):{ -# define SWITCH_DEFAULT }break; default:{ -# define SWITCH_END }} -#else -# define SWITCH_START(cmd) {uchar _cmd = cmd; if(0){ -# define SWITCH_CASE(value) }else if(_cmd == (value)){ -# define SWITCH_CASE2(v1,v2) }else if(_cmd == (v1) || _cmd == (v2)){ -# define SWITCH_CASE3(v1,v2,v3) }else if(_cmd == (v1) || _cmd == (v2) || (_cmd == v3)){ -# define SWITCH_DEFAULT }else{ -# define SWITCH_END }} -#endif - -#ifndef USB_RX_USER_HOOK -#define USB_RX_USER_HOOK(data, len) -#endif -#ifndef USB_SET_ADDRESS_HOOK -#define USB_SET_ADDRESS_HOOK() -#endif - -/* ------------------------------------------------------------------------- */ - -/* We use if() instead of #if in the macro below because #if can't be used - * in macros and the compiler optimizes constant conditions anyway. - * This may cause problems with undefined symbols if compiled without - * optimizing! - */ -#define GET_DESCRIPTOR(cfgProp, staticName) \ - if(cfgProp){ \ - if((cfgProp) & USB_PROP_IS_RAM) \ - flags = 0; \ - if((cfgProp) & USB_PROP_IS_DYNAMIC){ \ - len = usbFunctionDescriptor(rq); \ - }else{ \ - len = USB_PROP_LENGTH(cfgProp); \ - usbMsgPtr = (uchar *)(staticName); \ - } \ - } - -/* usbDriverDescriptor() is similar to usbFunctionDescriptor(), but used - * internally for all types of descriptors. - */ -static inline usbMsgLen_t usbDriverDescriptor(usbRequest_t *rq) -{ -usbMsgLen_t len = 0; -uchar flags = USB_FLG_MSGPTR_IS_ROM; - - SWITCH_START(rq->wValue.bytes[1]) - SWITCH_CASE(USBDESCR_DEVICE) /* 1 */ - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_DEVICE, usbDescriptorDevice) - SWITCH_CASE(USBDESCR_CONFIG) /* 2 */ - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_CONFIGURATION, usbDescriptorConfiguration) - SWITCH_CASE(USBDESCR_STRING) /* 3 */ -#if USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_DYNAMIC - if(USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_RAM) - flags = 0; - len = usbFunctionDescriptor(rq); -#else /* USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_DYNAMIC */ - SWITCH_START(rq->wValue.bytes[0]) - SWITCH_CASE(0) - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_0, usbDescriptorString0) - SWITCH_CASE(1) - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_VENDOR, usbDescriptorStringVendor) - SWITCH_CASE(2) - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_PRODUCT, usbDescriptorStringDevice) - SWITCH_CASE(3) - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_STRING_SERIAL_NUMBER, usbDescriptorStringSerialNumber) - SWITCH_DEFAULT - if(USB_CFG_DESCR_PROPS_UNKNOWN & USB_PROP_IS_DYNAMIC){ - len = usbFunctionDescriptor(rq); - } - SWITCH_END -#endif /* USB_CFG_DESCR_PROPS_STRINGS & USB_PROP_IS_DYNAMIC */ -#if USB_CFG_DESCR_PROPS_HID_REPORT /* only support HID descriptors if enabled */ - SWITCH_CASE(USBDESCR_HID) /* 0x21 */ - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_HID, usbDescriptorConfiguration + 18) - SWITCH_CASE(USBDESCR_HID_REPORT)/* 0x22 */ - GET_DESCRIPTOR(USB_CFG_DESCR_PROPS_HID_REPORT, usbDescriptorHidReport) -#endif - SWITCH_DEFAULT - if(USB_CFG_DESCR_PROPS_UNKNOWN & USB_PROP_IS_DYNAMIC){ - len = usbFunctionDescriptor(rq); - } - SWITCH_END - usbMsgFlags = flags; - return len; -} - -/* ------------------------------------------------------------------------- */ - -/* usbDriverSetup() is similar to usbFunctionSetup(), but it's used for - * standard requests instead of class and custom requests. - */ -static inline usbMsgLen_t usbDriverSetup(usbRequest_t *rq) -{ -uchar len = 0, *dataPtr = usbTxBuf + 9; /* there are 2 bytes free space at the end of the buffer */ -uchar value = rq->wValue.bytes[0]; -#if USB_CFG_IMPLEMENT_HALT -uchar index = rq->wIndex.bytes[0]; -#endif - - dataPtr[0] = 0; /* default reply common to USBRQ_GET_STATUS and USBRQ_GET_INTERFACE */ - SWITCH_START(rq->bRequest) - SWITCH_CASE(USBRQ_GET_STATUS) /* 0 */ - uchar recipient = rq->bmRequestType & USBRQ_RCPT_MASK; /* assign arith ops to variables to enforce byte size */ - if(USB_CFG_IS_SELF_POWERED && recipient == USBRQ_RCPT_DEVICE) - dataPtr[0] = USB_CFG_IS_SELF_POWERED; -#if USB_CFG_IMPLEMENT_HALT - if(recipient == USBRQ_RCPT_ENDPOINT && index == 0x81) /* request status for endpoint 1 */ - dataPtr[0] = usbTxLen1 == USBPID_STALL; -#endif - dataPtr[1] = 0; - len = 2; -#if USB_CFG_IMPLEMENT_HALT - SWITCH_CASE2(USBRQ_CLEAR_FEATURE, USBRQ_SET_FEATURE) /* 1, 3 */ - if(value == 0 && index == 0x81){ /* feature 0 == HALT for endpoint == 1 */ - usbTxLen1 = rq->bRequest == USBRQ_CLEAR_FEATURE ? USBPID_NAK : USBPID_STALL; - usbResetDataToggling(); - } -#endif - SWITCH_CASE(USBRQ_SET_ADDRESS) /* 5 */ - usbNewDeviceAddr = value; - USB_SET_ADDRESS_HOOK(); - SWITCH_CASE(USBRQ_GET_DESCRIPTOR) /* 6 */ - len = usbDriverDescriptor(rq); - goto skipMsgPtrAssignment; - SWITCH_CASE(USBRQ_GET_CONFIGURATION) /* 8 */ - dataPtr = &usbConfiguration; /* send current configuration value */ - len = 1; - SWITCH_CASE(USBRQ_SET_CONFIGURATION) /* 9 */ - usbConfiguration = value; - usbResetStall(); - SWITCH_CASE(USBRQ_GET_INTERFACE) /* 10 */ - len = 1; -#if USB_CFG_HAVE_INTRIN_ENDPOINT - SWITCH_CASE(USBRQ_SET_INTERFACE) /* 11 */ - usbResetDataToggling(); - usbResetStall(); -#endif - SWITCH_DEFAULT /* 7=SET_DESCRIPTOR, 12=SYNC_FRAME */ - /* Should we add an optional hook here? */ - SWITCH_END - usbMsgPtr = dataPtr; -skipMsgPtrAssignment: - return len; -} - -/* ------------------------------------------------------------------------- */ - -/* usbProcessRx() is called for every message received by the interrupt - * routine. It distinguishes between SETUP and DATA packets and processes - * them accordingly. - */ -static inline void usbProcessRx(uchar *data, uchar len) -{ -usbRequest_t *rq = (void *)data; - -/* usbRxToken can be: - * 0x2d 00101101 (USBPID_SETUP for setup data) - * 0xe1 11100001 (USBPID_OUT: data phase of setup transfer) - * 0...0x0f for OUT on endpoint X - */ - DBG2(0x10 + (usbRxToken & 0xf), data, len); /* SETUP=1d, SETUP-DATA=11, OUTx=1x */ - USB_RX_USER_HOOK(data, len) -#if USB_CFG_IMPLEMENT_FN_WRITEOUT - if(usbRxToken < 0x10){ /* OUT to endpoint != 0: endpoint number in usbRxToken */ - usbFunctionWriteOut(data, len); - return; - } -#endif - if(usbRxToken == (uchar)USBPID_SETUP){ - if(len != 8) /* Setup size must be always 8 bytes. Ignore otherwise. */ - return; - usbMsgLen_t replyLen; - usbTxBuf[0] = USBPID_DATA0; /* initialize data toggling */ - usbTxLen = USBPID_NAK; /* abort pending transmit */ - usbMsgFlags = 0; - uchar type = rq->bmRequestType & USBRQ_TYPE_MASK; - if(type != USBRQ_TYPE_STANDARD){ /* standard requests are handled by driver */ - replyLen = usbFunctionSetup(data); - }else{ - replyLen = usbDriverSetup(rq); - } -#if USB_CFG_IMPLEMENT_FN_READ || USB_CFG_IMPLEMENT_FN_WRITE - if(replyLen == USB_NO_MSG){ /* use user-supplied read/write function */ - /* do some conditioning on replyLen */ - if((rq->bmRequestType & USBRQ_DIR_MASK) != USBRQ_DIR_HOST_TO_DEVICE){ - replyLen = rq->wLength.bytes[0]; /* IN transfers only */ - } - usbMsgFlags = USB_FLG_USE_USER_RW; - }else /* The 'else' prevents that we limit a replyLen of USB_NO_MSG to the maximum transfer len. */ -#endif - if(sizeof(replyLen) < sizeof(rq->wLength.word)){ /* help compiler with optimizing */ - if(!rq->wLength.bytes[1] && replyLen > rq->wLength.bytes[0]) /* limit length to max */ - replyLen = rq->wLength.bytes[0]; - }else{ - if(replyLen > rq->wLength.word) /* limit length to max */ - replyLen = rq->wLength.word; - } - usbMsgLen = replyLen; - }else{ /* usbRxToken must be USBPID_OUT, which means data phase of setup (control-out) */ -#if USB_CFG_IMPLEMENT_FN_WRITE - if(usbMsgFlags & USB_FLG_USE_USER_RW){ - uchar rval = usbFunctionWrite(data, len); - if(rval == 0xff){ /* an error occurred */ - usbTxLen = USBPID_STALL; - }else if(rval != 0){ /* This was the final package */ - usbMsgLen = 0; /* answer with a zero-sized data packet */ - } - } -#endif - } -} - -/* ------------------------------------------------------------------------- */ - -/* This function is similar to usbFunctionRead(), but it's also called for - * data handled automatically by the driver (e.g. descriptor reads). - */ -static uchar usbDeviceRead(uchar *data, uchar len) -{ - if(len > 0){ /* don't bother app with 0 sized reads */ -#if USB_CFG_IMPLEMENT_FN_READ - if(usbMsgFlags & USB_FLG_USE_USER_RW){ - len = usbFunctionRead(data, len); - }else -#endif - { - uchar i = len, *r = usbMsgPtr; - if(usbMsgFlags & USB_FLG_MSGPTR_IS_ROM){ /* ROM data */ - do{ - uchar c = PRG_RDB(r); /* assign to char size variable to enforce byte ops */ - *data++ = c; - r++; - }while(--i); - }else{ /* RAM data */ - do{ - *data++ = *r++; - }while(--i); - } - usbMsgPtr = r; - } - } - return len; -} - -/* ------------------------------------------------------------------------- */ - -/* usbBuildTxBlock() is called when we have data to transmit and the - * interrupt routine's transmit buffer is empty. - */ -static inline void usbBuildTxBlock(void) -{ -usbMsgLen_t wantLen; -uchar len; - - wantLen = usbMsgLen; - if(wantLen > 8) - wantLen = 8; - usbMsgLen -= wantLen; - usbTxBuf[0] ^= USBPID_DATA0 ^ USBPID_DATA1; /* DATA toggling */ - len = usbDeviceRead(usbTxBuf + 1, wantLen); - if(len <= 8){ /* valid data packet */ - usbCrc16Append(&usbTxBuf[1], len); - len += 4; /* length including sync byte */ - if(len < 12) /* a partial package identifies end of message */ - usbMsgLen = USB_NO_MSG; - }else{ - len = USBPID_STALL; /* stall the endpoint */ - usbMsgLen = USB_NO_MSG; - } - usbTxLen = len; - DBG2(0x20, usbTxBuf, len-1); -} - -/* ------------------------------------------------------------------------- */ - -static inline void usbHandleResetHook(uchar notResetState) -{ -#ifdef USB_RESET_HOOK -static uchar wasReset; -uchar isReset = !notResetState; - - if(wasReset != isReset){ - USB_RESET_HOOK(isReset); - wasReset = isReset; - } -#endif -} - -/* ------------------------------------------------------------------------- */ - -USB_PUBLIC void usbPoll(void) -{ -schar len; -uchar i; - - len = usbRxLen - 3; - if(len >= 0){ -/* We could check CRC16 here -- but ACK has already been sent anyway. If you - * need data integrity checks with this driver, check the CRC in your app - * code and report errors back to the host. Since the ACK was already sent, - * retries must be handled on application level. - * unsigned crc = usbCrc16(buffer + 1, usbRxLen - 3); - */ - usbProcessRx(usbRxBuf + USB_BUFSIZE + 1 - usbInputBufOffset, len); -#if USB_CFG_HAVE_FLOWCONTROL - if(usbRxLen > 0) /* only mark as available if not inactivated */ - usbRxLen = 0; -#else - usbRxLen = 0; /* mark rx buffer as available */ -#endif - } - if(usbTxLen & 0x10){ /* transmit system idle */ - if(usbMsgLen != USB_NO_MSG){ /* transmit data pending? */ - usbBuildTxBlock(); - } - } - for(i = 10; i > 0; i--){ - uchar usbLineStatus = USBIN & USBMASK; - if(usbLineStatus != 0) /* SE0 has ended */ - break; - } - if(i == 0){ /* RESET condition, called multiple times during reset */ - usbNewDeviceAddr = 0; - usbDeviceAddr = 0; - usbResetStall(); - DBG1(0xff, 0, 0); - } - usbHandleResetHook(i); -} - -/* ------------------------------------------------------------------------- */ - -USB_PUBLIC void usbInit(void) -{ -#if USB_INTR_CFG_SET != 0 - USB_INTR_CFG |= USB_INTR_CFG_SET; -#endif -#if USB_INTR_CFG_CLR != 0 - USB_INTR_CFG &= ~(USB_INTR_CFG_CLR); -#endif - USB_INTR_ENABLE |= (1 << USB_INTR_ENABLE_BIT); - usbResetDataToggling(); -#if USB_CFG_HAVE_INTRIN_ENDPOINT - usbTxLen1 = USBPID_NAK; -#if USB_CFG_HAVE_INTRIN_ENDPOINT3 - usbTxLen3 = USBPID_NAK; -#endif -#endif -} - -/* ------------------------------------------------------------------------- */ diff --git a/tools/usbload/usbdrv/usbdrv.h b/tools/usbload/usbdrv/usbdrv.h deleted file mode 100644 index ca7392f..0000000 --- a/tools/usbload/usbdrv/usbdrv.h +++ /dev/null @@ -1,712 +0,0 @@ -/* Name: usbdrv.h - * Project: AVR USB driver - * Author: Christian Starkjohann - * Creation Date: 2004-12-29 - * Tabsize: 4 - * Copyright: (c) 2005 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * This Revision: $Id: usbdrv.h 607 2008-05-13 15:57:28Z cs $ - */ - -#ifndef __usbdrv_h_included__ -#define __usbdrv_h_included__ -#include "usbconfig.h" -#include "iarcompat.h" - -/* -Hardware Prerequisites: -======================= -USB lines D+ and D- MUST be wired to the same I/O port. We recommend that D+ -triggers the interrupt (best achieved by using INT0 for D+), but it is also -possible to trigger the interrupt from D-. If D- is used, interrupts are also -triggered by SOF packets. D- requires a pull-up of 1.5k to +3.5V (and the -device must be powered at 3.5V) to identify as low-speed USB device. A -pull-down or pull-up of 1M SHOULD be connected from D+ to +3.5V to prevent -interference when no USB master is connected. If you use Zener diodes to limit -the voltage on D+ and D-, you MUST use a pull-down resistor, not a pull-up. -We use D+ as interrupt source and not D- because it does not trigger on -keep-alive and RESET states. If you want to count keep-alive events with -USB_COUNT_SOF, you MUST use D- as an interrupt source. - -As a compile time option, the 1.5k pull-up resistor on D- can be made -switchable to allow the device to disconnect at will. See the definition of -usbDeviceConnect() and usbDeviceDisconnect() further down in this file. - -Please adapt the values in usbconfig.h according to your hardware! - -The device MUST be clocked at exactly 12 MHz, 15 MHz or 16 MHz -or at 16.5 MHz +/- 1%. See usbconfig-prototype.h for details. - - -Limitations: -============ -Robustness with respect to communication errors: -The driver assumes error-free communication. It DOES check for errors in -the PID, but does NOT check bit stuffing errors, SE0 in middle of a byte, -token CRC (5 bit) and data CRC (16 bit). CRC checks can not be performed due -to timing constraints: We must start sending a reply within 7 bit times. -Bit stuffing and misplaced SE0 would have to be checked in real-time, but CPU -performance does not permit that. The driver does not check Data0/Data1 -toggling, but application software can implement the check. - -Input characteristics: -Since no differential receiver circuit is used, electrical interference -robustness may suffer. The driver samples only one of the data lines with -an ordinary I/O pin's input characteristics. However, since this is only a -low speed USB implementation and the specification allows for 8 times the -bit rate over the same hardware, we should be on the safe side. Even the spec -requires detection of asymmetric states at high bit rate for SE0 detection. - -Number of endpoints: -The driver supports the following endpoints: - -- Endpoint 0, the default control endpoint. -- Any number of interrupt- or bulk-out endpoints. The data is sent to - usbFunctionWriteOut() and USB_CFG_IMPLEMENT_FN_WRITEOUT must be defined - to 1 to activate this feature. The endpoint number can be found in the - global variable 'usbRxToken'. -- One default interrupt- or bulk-in endpoint. This endpoint is used for - interrupt- or bulk-in transfers which are not handled by any other endpoint. - You must define USB_CFG_HAVE_INTRIN_ENDPOINT in order to activate this - feature and call usbSetInterrupt() to send interrupt/bulk data. -- One additional interrupt- or bulk-in endpoint. This was endpoint 3 in - previous versions of this driver but can now be configured to any endpoint - number. You must define USB_CFG_HAVE_INTRIN_ENDPOINT3 in order to activate - this feature and call usbSetInterrupt3() to send interrupt/bulk data. The - endpoint number can be set with USB_CFG_EP3_NUMBER. - -Please note that the USB standard forbids bulk endpoints for low speed devices! -Most operating systems allow them anyway, but the AVR will spend 90% of the CPU -time in the USB interrupt polling for bulk data. - -Maximum data payload: -Data payload of control in and out transfers may be up to 254 bytes. In order -to accept payload data of out transfers, you need to implement -'usbFunctionWrite()'. - -USB Suspend Mode supply current: -The USB standard limits power consumption to 500uA when the bus is in suspend -mode. This is not a problem for self-powered devices since they don't need -bus power anyway. Bus-powered devices can achieve this only by putting the -CPU in sleep mode. The driver does not implement suspend handling by itself. -However, the application may implement activity monitoring and wakeup from -sleep. The host sends regular SE0 states on the bus to keep it active. These -SE0 states can be detected by using D- as the interrupt source. Define -USB_COUNT_SOF to 1 and use the global variable usbSofCount to check for bus -activity. - -Operation without an USB master: -The driver behaves neutral without connection to an USB master if D- reads -as 1. To avoid spurious interrupts, we recommend a high impedance (e.g. 1M) -pull-down or pull-up resistor on D+ (interrupt). If Zener diodes are used, -use a pull-down. If D- becomes statically 0, the driver may block in the -interrupt routine. - -Interrupt latency: -The application must ensure that the USB interrupt is not disabled for more -than 25 cycles (this is for 12 MHz, faster clocks allow longer latency). -This implies that all interrupt routines must either be declared as "INTERRUPT" -instead of "SIGNAL" (see "avr/signal.h") or that they are written in assembler -with "sei" as the first instruction. - -Maximum interrupt duration / CPU cycle consumption: -The driver handles all USB communication during the interrupt service -routine. The routine will not return before an entire USB message is received -and the reply is sent. This may be up to ca. 1200 cycles @ 12 MHz (= 100us) if -the host conforms to the standard. The driver will consume CPU cycles for all -USB messages, even if they address another (low-speed) device on the same bus. - -*/ - -/* ------------------------------------------------------------------------- */ -/* --------------------------- Module Interface ---------------------------- */ -/* ------------------------------------------------------------------------- */ - -#define USBDRV_VERSION 20080513 -/* This define uniquely identifies a driver version. It is a decimal number - * constructed from the driver's release date in the form YYYYMMDD. If the - * driver's behavior or interface changes, you can use this constant to - * distinguish versions. If it is not defined, the driver's release date is - * older than 2006-01-25. - */ - - -#ifndef USB_PUBLIC -#define USB_PUBLIC -#endif -/* USB_PUBLIC is used as declaration attribute for all functions exported by - * the USB driver. The default is no attribute (see above). You may define it - * to static either in usbconfig.h or from the command line if you include - * usbdrv.c instead of linking against it. Including the C module of the driver - * directly in your code saves a couple of bytes in flash memory. - */ - -#ifndef __ASSEMBLER__ -#ifndef uchar -#define uchar unsigned char -#endif -#ifndef schar -#define schar signed char -#endif -/* shortcuts for well defined 8 bit integer types */ - -#if USB_CFG_LONG_TRANSFERS /* if more than 254 bytes transfer size required */ -# define usbMsgLen_t unsigned -#else -# define usbMsgLen_t uchar -#endif -/* usbMsgLen_t is the data type used for transfer lengths. By default, it is - * defined to uchar, allowing a maximum of 254 bytes (255 is reserved for - * USB_NO_MSG below). If the usbconfig.h defines USB_CFG_LONG_TRANSFERS to 1, - * a 16 bit data type is used, allowing up to 16384 bytes (the rest is used - * for flags in the descriptor configuration). - */ -#define USB_NO_MSG ((usbMsgLen_t)-1) /* constant meaning "no message" */ - -struct usbRequest; /* forward declaration */ - -USB_PUBLIC void usbInit(void); -/* This function must be called before interrupts are enabled and the main - * loop is entered. - */ -USB_PUBLIC void usbPoll(void); -/* This function must be called at regular intervals from the main loop. - * Maximum delay between calls is somewhat less than 50ms (USB timeout for - * accepting a Setup message). Otherwise the device will not be recognized. - * Please note that debug outputs through the UART take ~ 0.5ms per byte - * at 19200 bps. - */ -extern uchar *usbMsgPtr; -/* This variable may be used to pass transmit data to the driver from the - * implementation of usbFunctionWrite(). It is also used internally by the - * driver for standard control requests. - */ -USB_PUBLIC usbMsgLen_t usbFunctionSetup(uchar data[8]); -/* This function is called when the driver receives a SETUP transaction from - * the host which is not answered by the driver itself (in practice: class and - * vendor requests). All control transfers start with a SETUP transaction where - * the host communicates the parameters of the following (optional) data - * transfer. The SETUP data is available in the 'data' parameter which can - * (and should) be casted to 'usbRequest_t *' for a more user-friendly access - * to parameters. - * - * If the SETUP indicates a control-in transfer, you should provide the - * requested data to the driver. There are two ways to transfer this data: - * (1) Set the global pointer 'usbMsgPtr' to the base of the static RAM data - * block and return the length of the data in 'usbFunctionSetup()'. The driver - * will handle the rest. Or (2) return USB_NO_MSG in 'usbFunctionSetup()'. The - * driver will then call 'usbFunctionRead()' when data is needed. See the - * documentation for usbFunctionRead() for details. - * - * If the SETUP indicates a control-out transfer, the only way to receive the - * data from the host is through the 'usbFunctionWrite()' call. If you - * implement this function, you must return USB_NO_MSG in 'usbFunctionSetup()' - * to indicate that 'usbFunctionWrite()' should be used. See the documentation - * of this function for more information. If you just want to ignore the data - * sent by the host, return 0 in 'usbFunctionSetup()'. - * - * Note that calls to the functions usbFunctionRead() and usbFunctionWrite() - * are only done if enabled by the configuration in usbconfig.h. - */ -USB_PUBLIC usbMsgLen_t usbFunctionDescriptor(struct usbRequest *rq); -/* You need to implement this function ONLY if you provide USB descriptors at - * runtime (which is an expert feature). It is very similar to - * usbFunctionSetup() above, but it is called only to request USB descriptor - * data. See the documentation of usbFunctionSetup() above for more info. - */ -#if USB_CFG_HAVE_INTRIN_ENDPOINT -USB_PUBLIC void usbSetInterrupt(uchar *data, uchar len); -/* This function sets the message which will be sent during the next interrupt - * IN transfer. The message is copied to an internal buffer and must not exceed - * a length of 8 bytes. The message may be 0 bytes long just to indicate the - * interrupt status to the host. - * If you need to transfer more bytes, use a control read after the interrupt. - */ -#define usbInterruptIsReady() (usbTxLen1 & 0x10) -/* This macro indicates whether the last interrupt message has already been - * sent. If you set a new interrupt message before the old was sent, the - * message already buffered will be lost. - */ -#if USB_CFG_HAVE_INTRIN_ENDPOINT3 -USB_PUBLIC void usbSetInterrupt3(uchar *data, uchar len); -#define usbInterruptIsReady3() (usbTxLen3 & 0x10) -/* Same as above for endpoint 3 */ -#endif -#endif /* USB_CFG_HAVE_INTRIN_ENDPOINT */ -#if USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH /* simplified interface for backward compatibility */ -#define usbHidReportDescriptor usbDescriptorHidReport -/* should be declared as: PROGMEM char usbHidReportDescriptor[]; */ -/* If you implement an HID device, you need to provide a report descriptor. - * The HID report descriptor syntax is a bit complex. If you understand how - * report descriptors are constructed, we recommend that you use the HID - * Descriptor Tool from usb.org, see http://www.usb.org/developers/hidpage/. - * Otherwise you should probably start with a working example. - */ -#endif /* USB_CFG_HID_REPORT_DESCRIPTOR_LENGTH */ -#if USB_CFG_IMPLEMENT_FN_WRITE -USB_PUBLIC uchar usbFunctionWrite(uchar *data, uchar len); -/* This function is called by the driver to provide a control transfer's - * payload data (control-out). It is called in chunks of up to 8 bytes. The - * total count provided in the current control transfer can be obtained from - * the 'length' property in the setup data. If an error occurred during - * processing, return 0xff (== -1). The driver will answer the entire transfer - * with a STALL token in this case. If you have received the entire payload - * successfully, return 1. If you expect more data, return 0. If you don't - * know whether the host will send more data (you should know, the total is - * provided in the usbFunctionSetup() call!), return 1. - * NOTE: If you return 0xff for STALL, 'usbFunctionWrite()' may still be called - * for the remaining data. You must continue to return 0xff for STALL in these - * calls. - * In order to get usbFunctionWrite() called, define USB_CFG_IMPLEMENT_FN_WRITE - * to 1 in usbconfig.h and return 0xff in usbFunctionSetup().. - */ -#endif /* USB_CFG_IMPLEMENT_FN_WRITE */ -#if USB_CFG_IMPLEMENT_FN_READ -USB_PUBLIC uchar usbFunctionRead(uchar *data, uchar len); -/* This function is called by the driver to ask the application for a control - * transfer's payload data (control-in). It is called in chunks of up to 8 - * bytes each. You should copy the data to the location given by 'data' and - * return the actual number of bytes copied. If you return less than requested, - * the control-in transfer is terminated. If you return 0xff, the driver aborts - * the transfer with a STALL token. - * In order to get usbFunctionRead() called, define USB_CFG_IMPLEMENT_FN_READ - * to 1 in usbconfig.h and return 0xff in usbFunctionSetup().. - */ -#endif /* USB_CFG_IMPLEMENT_FN_READ */ -#if USB_CFG_IMPLEMENT_FN_WRITEOUT -USB_PUBLIC void usbFunctionWriteOut(uchar *data, uchar len); -/* This function is called by the driver when data is received on an interrupt- - * or bulk-out endpoint. The endpoint number can be found in the global - * variable usbRxToken. You must define USB_CFG_IMPLEMENT_FN_WRITEOUT to 1 in - * usbconfig.h to get this function called. - */ -#endif /* USB_CFG_IMPLEMENT_FN_WRITEOUT */ -#ifdef USB_CFG_PULLUP_IOPORTNAME -#define usbDeviceConnect() ((USB_PULLUP_DDR |= (1<device, 1=device->host - * t ..... type: 0=standard, 1=class, 2=vendor, 3=reserved - * r ..... recipient: 0=device, 1=interface, 2=endpoint, 3=other - */ - -/* USB setup recipient values */ -#define USBRQ_RCPT_MASK 0x1f -#define USBRQ_RCPT_DEVICE 0 -#define USBRQ_RCPT_INTERFACE 1 -#define USBRQ_RCPT_ENDPOINT 2 - -/* USB request type values */ -#define USBRQ_TYPE_MASK 0x60 -#define USBRQ_TYPE_STANDARD (0<<5) -#define USBRQ_TYPE_CLASS (1<<5) -#define USBRQ_TYPE_VENDOR (2<<5) - -/* USB direction values: */ -#define USBRQ_DIR_MASK 0x80 -#define USBRQ_DIR_HOST_TO_DEVICE (0<<7) -#define USBRQ_DIR_DEVICE_TO_HOST (1<<7) - -/* USB Standard Requests */ -#define USBRQ_GET_STATUS 0 -#define USBRQ_CLEAR_FEATURE 1 -#define USBRQ_SET_FEATURE 3 -#define USBRQ_SET_ADDRESS 5 -#define USBRQ_GET_DESCRIPTOR 6 -#define USBRQ_SET_DESCRIPTOR 7 -#define USBRQ_GET_CONFIGURATION 8 -#define USBRQ_SET_CONFIGURATION 9 -#define USBRQ_GET_INTERFACE 10 -#define USBRQ_SET_INTERFACE 11 -#define USBRQ_SYNCH_FRAME 12 - -/* USB descriptor constants */ -#define USBDESCR_DEVICE 1 -#define USBDESCR_CONFIG 2 -#define USBDESCR_STRING 3 -#define USBDESCR_INTERFACE 4 -#define USBDESCR_ENDPOINT 5 -#define USBDESCR_HID 0x21 -#define USBDESCR_HID_REPORT 0x22 -#define USBDESCR_HID_PHYS 0x23 - -#define USBATTR_BUSPOWER 0x80 -#define USBATTR_SELFPOWER 0x40 -#define USBATTR_REMOTEWAKE 0x20 - -/* USB HID Requests */ -#define USBRQ_HID_GET_REPORT 0x01 -#define USBRQ_HID_GET_IDLE 0x02 -#define USBRQ_HID_GET_PROTOCOL 0x03 -#define USBRQ_HID_SET_REPORT 0x09 -#define USBRQ_HID_SET_IDLE 0x0a -#define USBRQ_HID_SET_PROTOCOL 0x0b - -/* ------------------------------------------------------------------------- */ - -#endif /* __usbdrv_h_included__ */ diff --git a/tools/usbload/usbdrv/usbdrvasm.S b/tools/usbload/usbdrv/usbdrvasm.S deleted file mode 100644 index 2c06421..0000000 --- a/tools/usbload/usbdrv/usbdrvasm.S +++ /dev/null @@ -1,314 +0,0 @@ -/* Name: usbdrvasm.S - * Project: AVR USB driver - * Author: Christian Starkjohann - * Creation Date: 2007-06-13 - * Tabsize: 4 - * Copyright: (c) 2007 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * Revision: $Id$ - */ - -/* -General Description: -This module is the assembler part of the USB driver. This file contains -general code (preprocessor acrobatics and CRC computation) and then includes -the file appropriate for the given clock rate. -*/ - -#include "iarcompat.h" -#ifndef __IAR_SYSTEMS_ASM__ - /* configs for io.h */ -# define __SFR_OFFSET 0 -# define _VECTOR(N) __vector_ ## N /* io.h does not define this for asm */ -# include /* for CPU I/O register definitions and vectors */ -# define macro .macro /* GNU Assembler macro definition */ -# define endm .endm /* End of GNU Assembler macro definition */ -#endif /* __IAR_SYSTEMS_ASM__ */ -#include "usbdrv.h" /* for common defs */ - -/* register names */ -#define x1 r16 -#define x2 r17 -#define shift r18 -#define cnt r19 -#define x3 r20 -#define x4 r21 -#define bitcnt r22 -#define phase x4 -#define leap x4 - -/* Some assembler dependent definitions and declarations: */ - -#ifdef __IAR_SYSTEMS_ASM__ - -# define nop2 rjmp $+2 /* jump to next instruction */ -# define XL r26 -# define XH r27 -# define YL r28 -# define YH r29 -# define ZL r30 -# define ZH r31 -# define lo8(x) LOW(x) -# define hi8(x) (((x)>>8) & 0xff) /* not HIGH to allow XLINK to make a proper range check */ - - extern usbRxBuf, usbDeviceAddr, usbNewDeviceAddr, usbInputBufOffset - extern usbCurrentTok, usbRxLen, usbRxToken, usbTxLen - extern usbTxBuf, usbTxStatus1, usbTxStatus3 -# if USB_COUNT_SOF - extern usbSofCount -# endif - public usbCrc16 - public usbCrc16Append - - COMMON INTVEC -# ifndef USB_INTR_VECTOR - ORG INT0_vect -# else /* USB_INTR_VECTOR */ - ORG USB_INTR_VECTOR -# undef USB_INTR_VECTOR -# endif /* USB_INTR_VECTOR */ -# define USB_INTR_VECTOR usbInterruptHandler - rjmp USB_INTR_VECTOR - RSEG CODE - -#else /* __IAR_SYSTEMS_ASM__ */ - -# define nop2 rjmp .+0 /* jump to next instruction */ - -# ifndef USB_INTR_VECTOR /* default to hardware interrupt INT0 */ -# define USB_INTR_VECTOR SIG_INTERRUPT0 -# endif - .text - .global USB_INTR_VECTOR - .type USB_INTR_VECTOR, @function - .global usbCrc16 - .global usbCrc16Append -#endif /* __IAR_SYSTEMS_ASM__ */ - - -#if USB_INTR_PENDING < 0x40 /* This is an I/O address, use in and out */ -# define USB_LOAD_PENDING(reg) in reg, USB_INTR_PENDING -# define USB_STORE_PENDING(reg) out USB_INTR_PENDING, reg -#else /* It's a memory address, use lds and sts */ -# define USB_LOAD_PENDING(reg) lds reg, USB_INTR_PENDING -# define USB_STORE_PENDING(reg) sts USB_INTR_PENDING, reg -#endif - -#define usbTxLen1 usbTxStatus1 -#define usbTxBuf1 (usbTxStatus1 + 1) -#define usbTxLen3 usbTxStatus3 -#define usbTxBuf3 (usbTxStatus3 + 1) - - -;---------------------------------------------------------------------------- -; Utility functions -;---------------------------------------------------------------------------- - -#ifdef __IAR_SYSTEMS_ASM__ -/* Register assignments for usbCrc16 on IAR cc */ -/* Calling conventions on IAR: - * First parameter passed in r16/r17, second in r18/r19 and so on. - * Callee must preserve r4-r15, r24-r29 (r28/r29 is frame pointer) - * Result is passed in r16/r17 - * In case of the "tiny" memory model, pointers are only 8 bit with no - * padding. We therefore pass argument 1 as "16 bit unsigned". - */ -RTMODEL "__rt_version", "3" -/* The line above will generate an error if cc calling conventions change. - * The value "3" above is valid for IAR 4.10B/W32 - */ -# define argLen r18 /* argument 2 */ -# define argPtrL r16 /* argument 1 */ -# define argPtrH r17 /* argument 1 */ - -# define resCrcL r16 /* result */ -# define resCrcH r17 /* result */ - -# define ptrL ZL -# define ptrH ZH -# define ptr Z -# define byte r22 -# define bitCnt r19 -# define polyL r20 -# define polyH r21 -# define scratch r23 - -#else /* __IAR_SYSTEMS_ASM__ */ -/* Register assignments for usbCrc16 on gcc */ -/* Calling conventions on gcc: - * First parameter passed in r24/r25, second in r22/23 and so on. - * Callee must preserve r1-r17, r28/r29 - * Result is passed in r24/r25 - */ -# define argLen r22 /* argument 2 */ -# define argPtrL r24 /* argument 1 */ -# define argPtrH r25 /* argument 1 */ - -# define resCrcL r24 /* result */ -# define resCrcH r25 /* result */ - -# define ptrL XL -# define ptrH XH -# define ptr x -# define byte r18 -# define bitCnt r19 -# define polyL r20 -# define polyH r21 -# define scratch r23 - -#endif - -; extern unsigned usbCrc16(unsigned char *data, unsigned char len); -; data: r24/25 -; len: r22 -; temp variables: -; r18: data byte -; r19: bit counter -; r20/21: polynomial -; r23: scratch -; r24/25: crc-sum -; r26/27=X: ptr -usbCrc16: - mov ptrL, argPtrL - mov ptrH, argPtrH - ldi resCrcL, 0 - ldi resCrcH, 0 - ldi polyL, lo8(0xa001) - ldi polyH, hi8(0xa001) - com argLen ; argLen = -argLen - 1 -crcByteLoop: - subi argLen, -1 - brcc crcReady ; modified loop to ensure that carry is set below - ld byte, ptr+ - ldi bitCnt, -8 ; strange loop counter to ensure that carry is set where we need it - eor resCrcL, byte -crcBitLoop: - ror resCrcH ; carry is always set here - ror resCrcL - brcs crcNoXor - eor resCrcL, polyL - eor resCrcH, polyH -crcNoXor: - subi bitCnt, -1 - brcs crcBitLoop - rjmp crcByteLoop -crcReady: - ret -; Thanks to Reimar Doeffinger for optimizing this CRC routine! - -; extern unsigned usbCrc16Append(unsigned char *data, unsigned char len); -usbCrc16Append: - rcall usbCrc16 - st ptr+, resCrcL - st ptr+, resCrcH - ret - -#undef argLen -#undef argPtrL -#undef argPtrH -#undef resCrcL -#undef resCrcH -#undef ptrL -#undef ptrH -#undef ptr -#undef byte -#undef bitCnt -#undef polyL -#undef polyH -#undef scratch - - -#if USB_CFG_HAVE_MEASURE_FRAME_LENGTH -#ifdef __IAR_SYSTEMS_ASM__ -/* Register assignments for usbMeasureFrameLength on IAR cc */ -/* Calling conventions on IAR: - * First parameter passed in r16/r17, second in r18/r19 and so on. - * Callee must preserve r4-r15, r24-r29 (r28/r29 is frame pointer) - * Result is passed in r16/r17 - * In case of the "tiny" memory model, pointers are only 8 bit with no - * padding. We therefore pass argument 1 as "16 bit unsigned". - */ -# define resL r16 -# define resH r17 -# define cnt16L r30 -# define cnt16H r31 -# define cntH r18 - -#else /* __IAR_SYSTEMS_ASM__ */ -/* Register assignments for usbMeasureFrameLength on gcc */ -/* Calling conventions on gcc: - * First parameter passed in r24/r25, second in r22/23 and so on. - * Callee must preserve r1-r17, r28/r29 - * Result is passed in r24/r25 - */ -# define resL r24 -# define resH r25 -# define cnt16L r24 -# define cnt16H r25 -# define cntH r26 -#endif -# define cnt16 cnt16L - -; extern unsigned usbMeasurePacketLength(void); -; returns time between two idle strobes in multiples of 7 CPU clocks -.global usbMeasureFrameLength -usbMeasureFrameLength: - ldi cntH, 6 ; wait ~ 10 ms for D- == 0 - clr cnt16L - clr cnt16H -usbMFTime16: - dec cntH - breq usbMFTimeout -usbMFWaitStrobe: ; first wait for D- == 0 (idle strobe) - sbiw cnt16, 1 ;[0] [6] - breq usbMFTime16 ;[2] - sbic USBIN, USBMINUS ;[3] - rjmp usbMFWaitStrobe ;[4] -usbMFWaitIdle: ; then wait until idle again - sbis USBIN, USBMINUS ;1 wait for D- == 1 - rjmp usbMFWaitIdle ;2 - ldi cnt16L, 1 ;1 represents cycles so far - clr cnt16H ;1 -usbMFWaitLoop: - in cntH, USBIN ;[0] [7] - adiw cnt16, 1 ;[1] - breq usbMFTimeout ;[3] - andi cntH, USBMASK ;[4] - brne usbMFWaitLoop ;[5] -usbMFTimeout: -#if resL != cnt16L - mov resL, cnt16L - mov resH, cnt16H -#endif - ret - -#undef resL -#undef resH -#undef cnt16 -#undef cnt16L -#undef cnt16H -#undef cntH - -#endif /* USB_CFG_HAVE_MEASURE_FRAME_LENGTH */ - -;---------------------------------------------------------------------------- -; Now include the clock rate specific code -;---------------------------------------------------------------------------- - -#ifndef USB_CFG_CLOCK_KHZ -# define USB_CFG_CLOCK_KHZ 12000 -#endif - -#if USB_CFG_CLOCK_KHZ == 12000 -# include "usbdrvasm12.inc" -#elif USB_CFG_CLOCK_KHZ == 15000 -# include "usbdrvasm15.inc" -#elif USB_CFG_CLOCK_KHZ == 16000 -# include "usbdrvasm16.inc" -#elif USB_CFG_CLOCK_KHZ == 16500 -# include "usbdrvasm165.inc" -#elif USB_CFG_CLOCK_KHZ == 20000 -# include "usbdrvasm20.inc" -#else -# error "USB_CFG_CLOCK_KHZ is not one of the supported rates!" -#endif diff --git a/tools/usbload/usbdrv/usbdrvasm.asm b/tools/usbload/usbdrv/usbdrvasm.asm deleted file mode 100644 index 4a5486f..0000000 --- a/tools/usbload/usbdrv/usbdrvasm.asm +++ /dev/null @@ -1,21 +0,0 @@ -/* Name: usbdrvasm.asm - * Project: AVR USB driver - * Author: Christian Starkjohann - * Creation Date: 2006-03-01 - * Tabsize: 4 - * Copyright: (c) 2006 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * This Revision: $Id$ - */ - -/* -General Description: -The IAR compiler/assembler system prefers assembler files with file extension -".asm". We simply provide this file as an alias for usbdrvasm.S. - -Thanks to Oleg Semyonov for his help with the IAR tools port! -*/ - -#include "usbdrvasm.S" - -end diff --git a/tools/usbload/usbdrv/usbdrvasm12.inc b/tools/usbload/usbdrv/usbdrvasm12.inc deleted file mode 100644 index 23b988c..0000000 --- a/tools/usbload/usbdrv/usbdrvasm12.inc +++ /dev/null @@ -1,427 +0,0 @@ -/* Name: usbdrvasm12.inc - * Project: AVR USB driver - * Author: Christian Starkjohann - * Creation Date: 2004-12-29 - * Tabsize: 4 - * Copyright: (c) 2007 by OBJECTIVE DEVELOPMENT Software GmbH - * License: GNU GPL v2 (see License.txt) or proprietary (CommercialLicense.txt) - * This Revision: $Id: usbdrvasm12.inc 483 2008-02-05 15:05:32Z cs $ - */ - -/* Do not link this file! Link usbdrvasm.S instead, which includes the - * appropriate implementation! - */ - -/* -General Description: -This file is the 12 MHz version of the asssembler part of the USB driver. It -requires a 12 MHz crystal (not a ceramic resonator and not a calibrated RC -oscillator). - -See usbdrv.h for a description of the entire driver. - -Since almost all of this code is timing critical, don't change unless you -really know what you are doing! Many parts require not only a maximum number -of CPU cycles, but even an exact number of cycles! - - -Timing constraints according to spec (in bit times): -timing subject min max CPUcycles ---------------------------------------------------------------------------- -EOP of OUT/SETUP to sync pattern of DATA0 (both rx) 2 16 16-128 -EOP of IN to sync pattern of DATA0 (rx, then tx) 2 7.5 16-60 -DATAx (rx) to ACK/NAK/STALL (tx) 2 7.5 16-60 -*/ - -;Software-receiver engine. Strict timing! Don't change unless you can preserve timing! -;interrupt response time: 4 cycles + insn running = 7 max if interrupts always enabled -;max allowable interrupt latency: 34 cycles -> max 25 cycles interrupt disable -;max stack usage: [ret(2), YL, SREG, YH, shift, x1, x2, x3, cnt, x4] = 11 bytes -;Numbers in brackets are maximum cycles since SOF. -USB_INTR_VECTOR: -;order of registers pushed: YL, SREG [sofError], YH, shift, x1, x2, x3, cnt - push YL ;2 [35] push only what is necessary to sync with edge ASAP - in YL, SREG ;1 [37] - push YL ;2 [39] -;---------------------------------------------------------------------------- -; Synchronize with sync pattern: -;---------------------------------------------------------------------------- -;sync byte (D-) pattern LSb to MSb: 01010100 [1 = idle = J, 0 = K] -;sync up with J to K edge during sync pattern -- use fastest possible loops -;first part has no timeout because it waits for IDLE or SE1 (== disconnected) -waitForJ: - sbis USBIN, USBMINUS ;1 [40] wait for D- == 1 - rjmp waitForJ ;2 -waitForK: -;The following code results in a sampling window of 1/4 bit which meets the spec. - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK -#if USB_COUNT_SOF - lds YL, usbSofCount - inc YL - sts usbSofCount, YL -#endif /* USB_COUNT_SOF */ - rjmp sofError -foundK: -;{3, 5} after falling D- edge, average delay: 4 cycles [we want 4 for center sampling] -;we have 1 bit time for setup purposes, then sample again. Numbers in brackets -;are cycles from center of first sync (double K) bit after the instruction - push YH ;2 [2] - lds YL, usbInputBufOffset;2 [4] - clr YH ;1 [5] - subi YL, lo8(-(usbRxBuf));1 [6] - sbci YH, hi8(-(usbRxBuf));1 [7] - - sbis USBIN, USBMINUS ;1 [8] we want two bits K [sample 1 cycle too early] - rjmp haveTwoBitsK ;2 [10] - pop YH ;2 [11] undo the push from before - rjmp waitForK ;2 [13] this was not the end of sync, retry -haveTwoBitsK: -;---------------------------------------------------------------------------- -; push more registers and initialize values while we sample the first bits: -;---------------------------------------------------------------------------- - push shift ;2 [16] - push x1 ;2 [12] - push x2 ;2 [14] - - in x1, USBIN ;1 [17] <-- sample bit 0 - ldi shift, 0xff ;1 [18] - bst x1, USBMINUS ;1 [19] - bld shift, 0 ;1 [20] - push x3 ;2 [22] - push cnt ;2 [24] - - in x2, USBIN ;1 [25] <-- sample bit 1 - ser x3 ;1 [26] [inserted init instruction] - eor x1, x2 ;1 [27] - bst x1, USBMINUS ;1 [28] - bld shift, 1 ;1 [29] - ldi cnt, USB_BUFSIZE;1 [30] [inserted init instruction] - rjmp rxbit2 ;2 [32] - -;---------------------------------------------------------------------------- -; Receiver loop (numbers in brackets are cycles within byte after instr) -;---------------------------------------------------------------------------- - -unstuff0: ;1 (branch taken) - andi x3, ~0x01 ;1 [15] - mov x1, x2 ;1 [16] x2 contains last sampled (stuffed) bit - in x2, USBIN ;1 [17] <-- sample bit 1 again - ori shift, 0x01 ;1 [18] - rjmp didUnstuff0 ;2 [20] - -unstuff1: ;1 (branch taken) - mov x2, x1 ;1 [21] x1 contains last sampled (stuffed) bit - andi x3, ~0x02 ;1 [22] - ori shift, 0x02 ;1 [23] - nop ;1 [24] - in x1, USBIN ;1 [25] <-- sample bit 2 again - rjmp didUnstuff1 ;2 [27] - -unstuff2: ;1 (branch taken) - andi x3, ~0x04 ;1 [29] - ori shift, 0x04 ;1 [30] - mov x1, x2 ;1 [31] x2 contains last sampled (stuffed) bit - nop ;1 [32] - in x2, USBIN ;1 [33] <-- sample bit 3 - rjmp didUnstuff2 ;2 [35] - -unstuff3: ;1 (branch taken) - in x2, USBIN ;1 [34] <-- sample stuffed bit 3 [one cycle too late] - andi x3, ~0x08 ;1 [35] - ori shift, 0x08 ;1 [36] - rjmp didUnstuff3 ;2 [38] - -unstuff4: ;1 (branch taken) - andi x3, ~0x10 ;1 [40] - in x1, USBIN ;1 [41] <-- sample stuffed bit 4 - ori shift, 0x10 ;1 [42] - rjmp didUnstuff4 ;2 [44] - -unstuff5: ;1 (branch taken) - andi x3, ~0x20 ;1 [48] - in x2, USBIN ;1 [49] <-- sample stuffed bit 5 - ori shift, 0x20 ;1 [50] - rjmp didUnstuff5 ;2 [52] - -unstuff6: ;1 (branch taken) - andi x3, ~0x40 ;1 [56] - in x1, USBIN ;1 [57] <-- sample stuffed bit 6 - ori shift, 0x40 ;1 [58] - rjmp didUnstuff6 ;2 [60] - -; extra jobs done during bit interval: -; bit 0: store, clear [SE0 is unreliable here due to bit dribbling in hubs] -; bit 1: se0 check -; bit 2: overflow check -; bit 3: recovery from delay [bit 0 tasks took too long] -; bit 4: none -; bit 5: none -; bit 6: none -; bit 7: jump, eor -rxLoop: - eor x3, shift ;1 [0] reconstruct: x3 is 0 at bit locations we changed, 1 at others - in x1, USBIN ;1 [1] <-- sample bit 0 - st y+, x3 ;2 [3] store data - ser x3 ;1 [4] - nop ;1 [5] - eor x2, x1 ;1 [6] - bst x2, USBMINUS;1 [7] - bld shift, 0 ;1 [8] - in x2, USBIN ;1 [9] <-- sample bit 1 (or possibly bit 0 stuffed) - andi x2, USBMASK ;1 [10] - breq se0 ;1 [11] SE0 check for bit 1 - andi shift, 0xf9 ;1 [12] -didUnstuff0: - breq unstuff0 ;1 [13] - eor x1, x2 ;1 [14] - bst x1, USBMINUS;1 [15] - bld shift, 1 ;1 [16] -rxbit2: - in x1, USBIN ;1 [17] <-- sample bit 2 (or possibly bit 1 stuffed) - andi shift, 0xf3 ;1 [18] - breq unstuff1 ;1 [19] do remaining work for bit 1 -didUnstuff1: - subi cnt, 1 ;1 [20] - brcs overflow ;1 [21] loop control - eor x2, x1 ;1 [22] - bst x2, USBMINUS;1 [23] - bld shift, 2 ;1 [24] - in x2, USBIN ;1 [25] <-- sample bit 3 (or possibly bit 2 stuffed) - andi shift, 0xe7 ;1 [26] - breq unstuff2 ;1 [27] -didUnstuff2: - eor x1, x2 ;1 [28] - bst x1, USBMINUS;1 [29] - bld shift, 3 ;1 [30] -didUnstuff3: - andi shift, 0xcf ;1 [31] - breq unstuff3 ;1 [32] - in x1, USBIN ;1 [33] <-- sample bit 4 - eor x2, x1 ;1 [34] - bst x2, USBMINUS;1 [35] - bld shift, 4 ;1 [36] -didUnstuff4: - andi shift, 0x9f ;1 [37] - breq unstuff4 ;1 [38] - nop2 ;2 [40] - in x2, USBIN ;1 [41] <-- sample bit 5 - eor x1, x2 ;1 [42] - bst x1, USBMINUS;1 [43] - bld shift, 5 ;1 [44] -didUnstuff5: - andi shift, 0x3f ;1 [45] - breq unstuff5 ;1 [46] - nop2 ;2 [48] - in x1, USBIN ;1 [49] <-- sample bit 6 - eor x2, x1 ;1 [50] - bst x2, USBMINUS;1 [51] - bld shift, 6 ;1 [52] -didUnstuff6: - cpi shift, 0x02 ;1 [53] - brlo unstuff6 ;1 [54] - nop2 ;2 [56] - in x2, USBIN ;1 [57] <-- sample bit 7 - eor x1, x2 ;1 [58] - bst x1, USBMINUS;1 [59] - bld shift, 7 ;1 [60] -didUnstuff7: - cpi shift, 0x04 ;1 [61] - brsh rxLoop ;2 [63] loop control -unstuff7: - andi x3, ~0x80 ;1 [63] - ori shift, 0x80 ;1 [64] - in x2, USBIN ;1 [65] <-- sample stuffed bit 7 - nop ;1 [66] - rjmp didUnstuff7 ;2 [68] - -macro POP_STANDARD ; 12 cycles - pop cnt - pop x3 - pop x2 - pop x1 - pop shift - pop YH -endm -macro POP_RETI ; 5 cycles - pop YL - out SREG, YL - pop YL -endm - -#include "asmcommon.inc" - -;---------------------------------------------------------------------------- -; Transmitting data -;---------------------------------------------------------------------------- - -bitstuff0: ;1 (for branch taken) - eor x1, x4 ;1 - ldi x2, 0 ;1 - out USBOUT, x1 ;1 <-- out - rjmp didStuff0 ;2 branch back 2 cycles earlier -bitstuff1: ;1 (for branch taken) - eor x1, x4 ;1 - rjmp didStuff1 ;2 we know that C is clear, jump back to do OUT and ror 0 into x2 -bitstuff2: ;1 (for branch taken) - eor x1, x4 ;1 - rjmp didStuff2 ;2 jump back 4 cycles earlier and do out and ror 0 into x2 -bitstuff3: ;1 (for branch taken) - eor x1, x4 ;1 - rjmp didStuff3 ;2 jump back earlier and ror 0 into x2 -bitstuff4: ;1 (for branch taken) - eor x1, x4 ;1 - ldi x2, 0 ;1 - out USBOUT, x1 ;1 <-- out - rjmp didStuff4 ;2 jump back 2 cycles earlier - -sendNakAndReti: ;0 [-19] 19 cycles until SOP - ldi x3, USBPID_NAK ;1 [-18] - rjmp usbSendX3 ;2 [-16] -sendAckAndReti: ;0 [-19] 19 cycles until SOP - ldi x3, USBPID_ACK ;1 [-18] - rjmp usbSendX3 ;2 [-16] -sendCntAndReti: ;0 [-17] 17 cycles until SOP - mov x3, cnt ;1 [-16] -usbSendX3: ;0 [-16] - ldi YL, 20 ;1 [-15] 'x3' is R20 - ldi YH, 0 ;1 [-14] - ldi cnt, 2 ;1 [-13] -; rjmp usbSendAndReti fallthrough - -; USB spec says: -; idle = J -; J = (D+ = 0), (D- = 1) or USBOUT = 0x01 -; K = (D+ = 1), (D- = 0) or USBOUT = 0x02 -; Spec allows 7.5 bit times from EOP to SOP for replies (= 60 cycles) - -;usbSend: -;pointer to data in 'Y' -;number of bytes in 'cnt' -- including sync byte -;uses: x1...x4, shift, cnt, Y -;Numbers in brackets are time since first bit of sync pattern is sent -usbSendAndReti: ;0 [-13] timing: 13 cycles until SOP - in x2, USBDDR ;1 [-12] - ori x2, USBMASK ;1 [-11] - sbi USBOUT, USBMINUS;2 [-9] prepare idle state; D+ and D- must have been 0 (no pullups) - in x1, USBOUT ;1 [-8] port mirror for tx loop - out USBDDR, x2 ;1 [-7] <- acquire bus -; need not init x2 (bitstuff history) because sync starts with 0 - push x4 ;2 [-5] - ldi x4, USBMASK ;1 [-4] exor mask - ldi shift, 0x80 ;1 [-3] sync byte is first byte sent -txLoop: ; [62] - sbrs shift, 0 ;1 [-2] [62] - eor x1, x4 ;1 [-1] [63] - out USBOUT, x1 ;1 [0] <-- out bit 0 - ror shift ;1 [1] - ror x2 ;1 [2] -didStuff0: - cpi x2, 0xfc ;1 [3] - brsh bitstuff0 ;1 [4] - sbrs shift, 0 ;1 [5] - eor x1, x4 ;1 [6] - ror shift ;1 [7] -didStuff1: - out USBOUT, x1 ;1 [8] <-- out bit 1 - ror x2 ;1 [9] - cpi x2, 0xfc ;1 [10] - brsh bitstuff1 ;1 [11] - sbrs shift, 0 ;1 [12] - eor x1, x4 ;1 [13] - ror shift ;1 [14] -didStuff2: - ror x2 ;1 [15] - out USBOUT, x1 ;1 [16] <-- out bit 2 - cpi x2, 0xfc ;1 [17] - brsh bitstuff2 ;1 [18] - sbrs shift, 0 ;1 [19] - eor x1, x4 ;1 [20] - ror shift ;1 [21] -didStuff3: - ror x2 ;1 [22] - cpi x2, 0xfc ;1 [23] - out USBOUT, x1 ;1 [24] <-- out bit 3 - brsh bitstuff3 ;1 [25] - nop2 ;2 [27] - ld x3, y+ ;2 [29] - sbrs shift, 0 ;1 [30] - eor x1, x4 ;1 [31] - out USBOUT, x1 ;1 [32] <-- out bit 4 - ror shift ;1 [33] - ror x2 ;1 [34] -didStuff4: - cpi x2, 0xfc ;1 [35] - brsh bitstuff4 ;1 [36] - sbrs shift, 0 ;1 [37] - eor x1, x4 ;1 [38] - ror shift ;1 [39] -didStuff5: - out USBOUT, x1 ;1 [40] <-- out bit 5 - ror x2 ;1 [41] - cpi x2, 0xfc ;1 [42] - brsh bitstuff5 ;1 [43] - sbrs shift, 0 ;1 [44] - eor x1, x4 ;1 [45] - ror shift ;1 [46] -didStuff6: - ror x2 ;1 [47] - out USBOUT, x1 ;1 [48] <-- out bit 6 - cpi x2, 0xfc ;1 [49] - brsh bitstuff6 ;1 [50] - sbrs shift, 0 ;1 [51] - eor x1, x4 ;1 [52] - ror shift ;1 [53] -didStuff7: - ror x2 ;1 [54] - cpi x2, 0xfc ;1 [55] - out USBOUT, x1 ;1 [56] <-- out bit 7 - brsh bitstuff7 ;1 [57] - mov shift, x3 ;1 [58] - dec cnt ;1 [59] - brne txLoop ;1/2 [60/61] -;make SE0: - cbr x1, USBMASK ;1 [61] prepare SE0 [spec says EOP may be 15 to 18 cycles] - pop x4 ;2 [63] -;brackets are cycles from start of SE0 now - out USBOUT, x1 ;1 [0] <-- out SE0 -- from now 2 bits = 16 cycles until bus idle -;2006-03-06: moved transfer of new address to usbDeviceAddr from C-Code to asm: -;set address only after data packet was sent, not after handshake - lds x2, usbNewDeviceAddr;2 [2] - lsl x2; ;1 [3] we compare with left shifted address - subi YL, 20 + 2 ;1 [4] Only assign address on data packets, not ACK/NAK in x3 - sbci YH, 0 ;1 [5] - breq skipAddrAssign ;2 [7] - sts usbDeviceAddr, x2; if not skipped: SE0 is one cycle longer -skipAddrAssign: -;end of usbDeviceAddress transfer - ldi x2, 1< 10.0 cycles per bit, 80.0 cycles per byte -; Numbers in brackets are clocks counted from center of last sync bit -; when instruction starts - -;---------------------------------------------------------------------------- -; order of registers pushed: -; YL, SREG [sofError] YH, shift, x1, x2, x3, bitcnt, cnt, x4 -;---------------------------------------------------------------------------- -USB_INTR_VECTOR: - push YL ;2 push only what is necessary to sync with edge ASAP - in YL, SREG ;1 - push YL ;2 -;---------------------------------------------------------------------------- -; Synchronize with sync pattern: -; -; sync byte (D-) pattern LSb to MSb: 01010100 [1 = idle = J, 0 = K] -; sync up with J to K edge during sync pattern -- use fastest possible loops -; first part has no timeout because it waits for IDLE or SE1 (== disconnected) -;------------------------------------------------------------------------------- -waitForJ: ;- - sbis USBIN, USBMINUS ;1 <-- sample: wait for D- == 1 - rjmp waitForJ ;2 -;------------------------------------------------------------------------------- -; The following code results in a sampling window of < 1/4 bit -; which meets the spec. -;------------------------------------------------------------------------------- -waitForK: ;- - sbis USBIN, USBMINUS ;1 [00] <-- sample - rjmp foundK ;2 [01] - sbis USBIN, USBMINUS ; <-- sample - rjmp foundK - sbis USBIN, USBMINUS ; <-- sample - rjmp foundK - sbis USBIN, USBMINUS ; <-- sample - rjmp foundK - sbis USBIN, USBMINUS ; <-- sample - rjmp foundK - sbis USBIN, USBMINUS ; <-- sample - rjmp foundK -#if USB_COUNT_SOF - lds YL, usbSofCount - inc YL - sts usbSofCount, YL -#endif /* USB_COUNT_SOF */ - rjmp sofError -;------------------------------------------------------------------------------ -; {3, 5} after falling D- edge, average delay: 4 cycles [we want 5 for -; center sampling] -; we have 1 bit time for setup purposes, then sample again. -; Numbers in brackets are cycles from center of first sync (double K) -; bit after the instruction -;------------------------------------------------------------------------------ -foundK: ;- [02] - lds YL, usbInputBufOffset;2 [03+04] tx loop - push YH ;2 [05+06] - clr YH ;1 [07] - subi YL, lo8(-(usbRxBuf)) ;1 [08] [rx loop init] - sbci YH, hi8(-(usbRxBuf)) ;1 [09] [rx loop init] - push shift ;2 [10+11] - ser shift ;1 [12] - sbis USBIN, USBMINUS ;1 [-1] [13] <--sample:we want two bits K (sample 1 cycle too early) - rjmp haveTwoBitsK ;2 [00] [14] - pop shift ;2 [15+16] undo the push from before - pop YH ;2 [17+18] undo the push from before - rjmp waitForK ;2 [19+20] this was not the end of sync, retry -; The entire loop from waitForK until rjmp waitForK above must not exceed two -; bit times (= 20 cycles). - -;---------------------------------------------------------------------------- -; push more registers and initialize values while we sample the first bits: -;---------------------------------------------------------------------------- -haveTwoBitsK: ;- [01] - push x1 ;2 [02+03] - push x2 ;2 [04+05] - push x3 ;2 [06+07] - push bitcnt ;2 [08+09] - in x1, USBIN ;1 [00] [10] <-- sample bit 0 - bst x1, USBMINUS ;1 [01] - bld shift, 0 ;1 [02] - push cnt ;2 [03+04] - ldi cnt, USB_BUFSIZE ;1 [05] - push x4 ;2 [06+07] tx loop - rjmp rxLoop ;2 [08] -;---------------------------------------------------------------------------- -; Receiver loop (numbers in brackets are cycles within byte after instr) -;---------------------------------------------------------------------------- -unstuff0: ;- [07] (branch taken) - andi x3, ~0x01 ;1 [08] - mov x1, x2 ;1 [09] x2 contains last sampled (stuffed) bit - in x2, USBIN ;1 [00] [10] <-- sample bit 1 again - andi x2, USBMASK ;1 [01] - breq se0Hop ;1 [02] SE0 check for bit 1 - ori shift, 0x01 ;1 [03] 0b00000001 - nop ;1 [04] - rjmp didUnstuff0 ;2 [05] -;----------------------------------------------------- -unstuff1: ;- [05] (branch taken) - mov x2, x1 ;1 [06] x1 contains last sampled (stuffed) bit - andi x3, ~0x02 ;1 [07] - ori shift, 0x02 ;1 [08] 0b00000010 - nop ;1 [09] - in x1, USBIN ;1 [00] [10] <-- sample bit 2 again - andi x1, USBMASK ;1 [01] - breq se0Hop ;1 [02] SE0 check for bit 2 - rjmp didUnstuff1 ;2 [03] -;----------------------------------------------------- -unstuff2: ;- [05] (branch taken) - andi x3, ~0x04 ;1 [06] - ori shift, 0x04 ;1 [07] 0b00000100 - mov x1, x2 ;1 [08] x2 contains last sampled (stuffed) bit - nop ;1 [09] - in x2, USBIN ;1 [00] [10] <-- sample bit 3 - andi x2, USBMASK ;1 [01] - breq se0Hop ;1 [02] SE0 check for bit 3 - rjmp didUnstuff2 ;2 [03] -;----------------------------------------------------- -unstuff3: ;- [00] [10] (branch taken) - in x2, USBIN ;1 [01] [11] <-- sample stuffed bit 3 one cycle too late - andi x2, USBMASK ;1 [02] - breq se0Hop ;1 [03] SE0 check for stuffed bit 3 - andi x3, ~0x08 ;1 [04] - ori shift, 0x08 ;1 [05] 0b00001000 - rjmp didUnstuff3 ;2 [06] -;---------------------------------------------------------------------------- -; extra jobs done during bit interval: -; -; bit 0: store, clear [SE0 is unreliable here due to bit dribbling in hubs], -; overflow check, jump to the head of rxLoop -; bit 1: SE0 check -; bit 2: SE0 check, recovery from delay [bit 0 tasks took too long] -; bit 3: SE0 check, recovery from delay [bit 0 tasks took too long] -; bit 4: SE0 check, none -; bit 5: SE0 check, none -; bit 6: SE0 check, none -; bit 7: SE0 check, reconstruct: x3 is 0 at bit locations we changed, 1 at others -;---------------------------------------------------------------------------- -rxLoop: ;- [09] - in x2, USBIN ;1 [00] [10] <-- sample bit 1 (or possibly bit 0 stuffed) - andi x2, USBMASK ;1 [01] - brne SkipSe0Hop ;1 [02] -se0Hop: ;- [02] - rjmp se0 ;2 [03] SE0 check for bit 1 -SkipSe0Hop: ;- [03] - ser x3 ;1 [04] - andi shift, 0xf9 ;1 [05] 0b11111001 - breq unstuff0 ;1 [06] -didUnstuff0: ;- [06] - eor x1, x2 ;1 [07] - bst x1, USBMINUS ;1 [08] - bld shift, 1 ;1 [09] - in x1, USBIN ;1 [00] [10] <-- sample bit 2 (or possibly bit 1 stuffed) - andi x1, USBMASK ;1 [01] - breq se0Hop ;1 [02] SE0 check for bit 2 - andi shift, 0xf3 ;1 [03] 0b11110011 - breq unstuff1 ;1 [04] do remaining work for bit 1 -didUnstuff1: ;- [04] - eor x2, x1 ;1 [05] - bst x2, USBMINUS ;1 [06] - bld shift, 2 ;1 [07] - nop2 ;2 [08+09] - in x2, USBIN ;1 [00] [10] <-- sample bit 3 (or possibly bit 2 stuffed) - andi x2, USBMASK ;1 [01] - breq se0Hop ;1 [02] SE0 check for bit 3 - andi shift, 0xe7 ;1 [03] 0b11100111 - breq unstuff2 ;1 [04] -didUnstuff2: ;- [04] - eor x1, x2 ;1 [05] - bst x1, USBMINUS ;1 [06] - bld shift, 3 ;1 [07] -didUnstuff3: ;- [07] - andi shift, 0xcf ;1 [08] 0b11001111 - breq unstuff3 ;1 [09] - in x1, USBIN ;1 [00] [10] <-- sample bit 4 - andi x1, USBMASK ;1 [01] - breq se0Hop ;1 [02] SE0 check for bit 4 - eor x2, x1 ;1 [03] - bst x2, USBMINUS ;1 [04] - bld shift, 4 ;1 [05] -didUnstuff4: ;- [05] - andi shift, 0x9f ;1 [06] 0b10011111 - breq unstuff4 ;1 [07] - nop2 ;2 [08+09] - in x2, USBIN ;1 [00] [10] <-- sample bit 5 - andi x2, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for bit 5 - eor x1, x2 ;1 [03] - bst x1, USBMINUS ;1 [04] - bld shift, 5 ;1 [05] -didUnstuff5: ;- [05] - andi shift, 0x3f ;1 [06] 0b00111111 - breq unstuff5 ;1 [07] - nop2 ;2 [08+09] - in x1, USBIN ;1 [00] [10] <-- sample bit 6 - andi x1, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for bit 6 - eor x2, x1 ;1 [03] - bst x2, USBMINUS ;1 [04] - bld shift, 6 ;1 [05] -didUnstuff6: ;- [05] - cpi shift, 0x02 ;1 [06] 0b00000010 - brlo unstuff6 ;1 [07] - nop2 ;2 [08+09] - in x2, USBIN ;1 [00] [10] <-- sample bit 7 - andi x2, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for bit 7 - eor x1, x2 ;1 [03] - bst x1, USBMINUS ;1 [04] - bld shift, 7 ;1 [05] -didUnstuff7: ;- [05] - cpi shift, 0x04 ;1 [06] 0b00000100 - brlo unstuff7 ;1 [07] - eor x3, shift ;1 [08] reconstruct: x3 is 0 at bit locations we changed, 1 at others - nop ;1 [09] - in x1, USBIN ;1 [00] [10] <-- sample bit 0 - st y+, x3 ;2 [01+02] store data - eor x2, x1 ;1 [03] - bst x2, USBMINUS ;1 [04] - bld shift, 0 ;1 [05] - subi cnt, 1 ;1 [06] - brcs overflow ;1 [07] - rjmp rxLoop ;2 [08] -;----------------------------------------------------- -unstuff4: ;- [08] - andi x3, ~0x10 ;1 [09] - in x1, USBIN ;1 [00] [10] <-- sample stuffed bit 4 - andi x1, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for stuffed bit 4 - ori shift, 0x10 ;1 [03] - rjmp didUnstuff4 ;2 [04] -;----------------------------------------------------- -unstuff5: ;- [08] - ori shift, 0x20 ;1 [09] - in x2, USBIN ;1 [00] [10] <-- sample stuffed bit 5 - andi x2, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for stuffed bit 5 - andi x3, ~0x20 ;1 [03] - rjmp didUnstuff5 ;2 [04] -;----------------------------------------------------- -unstuff6: ;- [08] - andi x3, ~0x40 ;1 [09] - in x1, USBIN ;1 [00] [10] <-- sample stuffed bit 6 - andi x1, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for stuffed bit 6 - ori shift, 0x40 ;1 [03] - rjmp didUnstuff6 ;2 [04] -;----------------------------------------------------- -unstuff7: ;- [08] - andi x3, ~0x80 ;1 [09] - in x2, USBIN ;1 [00] [10] <-- sample stuffed bit 7 - andi x2, USBMASK ;1 [01] - breq se0 ;1 [02] SE0 check for stuffed bit 7 - ori shift, 0x80 ;1 [03] - rjmp didUnstuff7 ;2 [04] - -macro POP_STANDARD ; 16 cycles - pop x4 - pop cnt - pop bitcnt - pop x3 - pop x2 - pop x1 - pop shift - pop YH -endm -macro POP_RETI ; 5 cycles - pop YL - out SREG, YL - pop YL -endm - -#include "asmcommon.inc" - -;--------------------------------------------------------------------------- -; USB spec says: -; idle = J -; J = (D+ = 0), (D- = 1) -; K = (D+ = 1), (D- = 0) -; Spec allows 7.5 bit times from EOP to SOP for replies -;--------------------------------------------------------------------------- -bitstuffN: ;- [04] - eor x1, x4 ;1 [05] - clr x2 ;1 [06] - nop ;1 [07] - rjmp didStuffN ;1 [08] -;--------------------------------------------------------------------------- -bitstuff6: ;- [04] - eor x1, x4 ;1 [05] - clr x2 ;1 [06] - rjmp didStuff6 ;1 [07] -;--------------------------------------------------------------------------- -bitstuff7: ;- [02] - eor x1, x4 ;1 [03] - clr x2 ;1 [06] - nop ;1 [05] - rjmp didStuff7 ;1 [06] -;--------------------------------------------------------------------------- -sendNakAndReti: ;- [-19] - ldi x3, USBPID_NAK ;1 [-18] - rjmp sendX3AndReti ;1 [-17] -;--------------------------------------------------------------------------- -sendAckAndReti: ;- [-17] - ldi cnt, USBPID_ACK ;1 [-16] -sendCntAndReti: ;- [-16] - mov x3, cnt ;1 [-15] -sendX3AndReti: ;- [-15] - ldi YL, 20 ;1 [-14] x3==r20 address is 20 - ldi YH, 0 ;1 [-13] - ldi cnt, 2 ;1 [-12] -; rjmp usbSendAndReti fallthrough -;--------------------------------------------------------------------------- -;usbSend: -;pointer to data in 'Y' -;number of bytes in 'cnt' -- including sync byte [range 2 ... 12] -;uses: x1...x4, btcnt, shift, cnt, Y -;Numbers in brackets are time since first bit of sync pattern is sent -;We need not to match the transfer rate exactly because the spec demands -;only 1.5% precision anyway. -usbSendAndReti: ;- [-13] 13 cycles until SOP - in x2, USBDDR ;1 [-12] - ori x2, USBMASK ;1 [-11] - sbi USBOUT, USBMINUS ;2 [-09-10] prepare idle state; D+ and D- must have been 0 (no pullups) - in x1, USBOUT ;1 [-08] port mirror for tx loop - out USBDDR, x2 ;1 [-07] <- acquire bus - ; need not init x2 (bitstuff history) because sync starts with 0 - ldi x4, USBMASK ;1 [-06] exor mask - ldi shift, 0x80 ;1 [-05] sync byte is first byte sent - ldi bitcnt, 6 ;1 [-04] -txBitLoop: ;- [-04] [06] - sbrs shift, 0 ;1 [-03] [07] - eor x1, x4 ;1 [-02] [08] - ror shift ;1 [-01] [09] -didStuffN: ;- [09] - out USBOUT, x1 ;1 [00] [10] <-- out N - ror x2 ;1 [01] - cpi x2, 0xfc ;1 [02] - brcc bitstuffN ;1 [03] - dec bitcnt ;1 [04] - brne txBitLoop ;1 [05] - sbrs shift, 0 ;1 [06] - eor x1, x4 ;1 [07] - ror shift ;1 [08] -didStuff6: ;- [08] - nop ;1 [09] - out USBOUT, x1 ;1 [00] [10] <-- out 6 - ror x2 ;1 [01] - cpi x2, 0xfc ;1 [02] - brcc bitstuff6 ;1 [03] - sbrs shift, 0 ;1 [04] - eor x1, x4 ;1 [05] - ror shift ;1 [06] - ror x2 ;1 [07] -didStuff7: ;- [07] - ldi bitcnt, 6 ;1 [08] - cpi x2, 0xfc ;1 [09] - out USBOUT, x1 ;1 [00] [10] <-- out 7 - brcc bitstuff7 ;1 [01] - ld shift, y+ ;2 [02+03] - dec cnt ;1 [04] - brne txBitLoop ;1 [05] -makeSE0: - cbr x1, USBMASK ;1 [06] prepare SE0 [spec says EOP may be 19 to 23 cycles] - lds x2, usbNewDeviceAddr;2 [07+08] - lsl x2 ;1 [09] we compare with left shifted address -;2006-03-06: moved transfer of new address to usbDeviceAddr from C-Code to asm: -;set address only after data packet was sent, not after handshake - out USBOUT, x1 ;1 [00] [10] <-- out SE0-- from now 2 bits==20 cycl. until bus idle - subi YL, 20 + 2 ;1 [01] Only assign address on data packets, not ACK/NAK in x3 - sbci YH, 0 ;1 [02] - breq skipAddrAssign ;1 [03] - sts usbDeviceAddr, x2 ;2 [04+05] if not skipped: SE0 is one cycle longer -;---------------------------------------------------------------------------- -;end of usbDeviceAddress transfer -skipAddrAssign: ;- [03/04] - ldi x2, 1< 10.6666666 cycles per bit, 85.333333333 cycles per byte -; Numbers in brackets are clocks counted from center of last sync bit -; when instruction starts - -USB_INTR_VECTOR: -;order of registers pushed: YL, SREG YH, [sofError], bitcnt, shift, x1, x2, x3, x4, cnt - push YL ;[-25] push only what is necessary to sync with edge ASAP - in YL, SREG ;[-23] - push YL ;[-22] - push YH ;[-20] -;---------------------------------------------------------------------------- -; Synchronize with sync pattern: -;---------------------------------------------------------------------------- -;sync byte (D-) pattern LSb to MSb: 01010100 [1 = idle = J, 0 = K] -;sync up with J to K edge during sync pattern -- use fastest possible loops -;first part has no timeout because it waits for IDLE or SE1 (== disconnected) -waitForJ: - sbis USBIN, USBMINUS ;[-18] wait for D- == 1 - rjmp waitForJ -waitForK: -;The following code results in a sampling window of < 1/4 bit which meets the spec. - sbis USBIN, USBMINUS ;[-15] - rjmp foundK ;[-14] - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK -#if USB_COUNT_SOF - lds YL, usbSofCount - inc YL - sts usbSofCount, YL -#endif /* USB_COUNT_SOF */ - rjmp sofError -foundK: ;[-12] -;{3, 5} after falling D- edge, average delay: 4 cycles [we want 5 for center sampling] -;we have 1 bit time for setup purposes, then sample again. Numbers in brackets -;are cycles from center of first sync (double K) bit after the instruction - push bitcnt ;[-12] -; [---] ;[-11] - lds YL, usbInputBufOffset;[-10] -; [---] ;[-9] - clr YH ;[-8] - subi YL, lo8(-(usbRxBuf));[-7] [rx loop init] - sbci YH, hi8(-(usbRxBuf));[-6] [rx loop init] - push shift ;[-5] -; [---] ;[-4] - ldi bitcnt, 0x55 ;[-3] [rx loop init] - sbis USBIN, USBMINUS ;[-2] we want two bits K (sample 2 cycles too early) - rjmp haveTwoBitsK ;[-1] - pop shift ;[0] undo the push from before - pop bitcnt ;[2] undo the push from before - rjmp waitForK ;[4] this was not the end of sync, retry -; The entire loop from waitForK until rjmp waitForK above must not exceed two -; bit times (= 21 cycles). - -;---------------------------------------------------------------------------- -; push more registers and initialize values while we sample the first bits: -;---------------------------------------------------------------------------- -haveTwoBitsK: - push x1 ;[1] - push x2 ;[3] - push x3 ;[5] - ldi shift, 0 ;[7] - ldi x3, 1<<4 ;[8] [rx loop init] first sample is inverse bit, compensate that - push x4 ;[9] == leap - - in x1, USBIN ;[11] <-- sample bit 0 - andi x1, USBMASK ;[12] - bst x1, USBMINUS ;[13] - bld shift, 7 ;[14] - push cnt ;[15] - ldi leap, 0 ;[17] [rx loop init] - ldi cnt, USB_BUFSIZE;[18] [rx loop init] - rjmp rxbit1 ;[19] arrives at [21] - -;---------------------------------------------------------------------------- -; Receiver loop (numbers in brackets are cycles within byte after instr) -;---------------------------------------------------------------------------- - -unstuff6: - andi x2, USBMASK ;[03] - ori x3, 1<<6 ;[04] will not be shifted any more - andi shift, ~0x80;[05] - mov x1, x2 ;[06] sampled bit 7 is actually re-sampled bit 6 - subi leap, 3 ;[07] since this is a short (10 cycle) bit, enforce leap bit - rjmp didUnstuff6 ;[08] - -unstuff7: - ori x3, 1<<7 ;[09] will not be shifted any more - in x2, USBIN ;[00] [10] re-sample bit 7 - andi x2, USBMASK ;[01] - andi shift, ~0x80;[02] - subi leap, 3 ;[03] since this is a short (10 cycle) bit, enforce leap bit - rjmp didUnstuff7 ;[04] - -unstuffEven: - ori x3, 1<<6 ;[09] will be shifted right 6 times for bit 0 - in x1, USBIN ;[00] [10] - andi shift, ~0x80;[01] - andi x1, USBMASK ;[02] - breq se0 ;[03] - subi leap, 3 ;[04] since this is a short (10 cycle) bit, enforce leap bit - nop ;[05] - rjmp didUnstuffE ;[06] - -unstuffOdd: - ori x3, 1<<5 ;[09] will be shifted right 4 times for bit 1 - in x2, USBIN ;[00] [10] - andi shift, ~0x80;[01] - andi x2, USBMASK ;[02] - breq se0 ;[03] - subi leap, 3 ;[04] since this is a short (10 cycle) bit, enforce leap bit - nop ;[05] - rjmp didUnstuffO ;[06] - -rxByteLoop: - andi x1, USBMASK ;[03] - eor x2, x1 ;[04] - subi leap, 1 ;[05] - brpl skipLeap ;[06] - subi leap, -3 ;1 one leap cycle every 3rd byte -> 85 + 1/3 cycles per byte - nop ;1 -skipLeap: - subi x2, 1 ;[08] - ror shift ;[09] -didUnstuff6: - cpi shift, 0xfc ;[10] - in x2, USBIN ;[00] [11] <-- sample bit 7 - brcc unstuff6 ;[01] - andi x2, USBMASK ;[02] - eor x1, x2 ;[03] - subi x1, 1 ;[04] - ror shift ;[05] -didUnstuff7: - cpi shift, 0xfc ;[06] - brcc unstuff7 ;[07] - eor x3, shift ;[08] reconstruct: x3 is 1 at bit locations we changed, 0 at others - st y+, x3 ;[09] store data -rxBitLoop: - in x1, USBIN ;[00] [11] <-- sample bit 0/2/4 - andi x1, USBMASK ;[01] - eor x2, x1 ;[02] - andi x3, 0x3f ;[03] topmost two bits reserved for 6 and 7 - subi x2, 1 ;[04] - ror shift ;[05] - cpi shift, 0xfc ;[06] - brcc unstuffEven ;[07] -didUnstuffE: - lsr x3 ;[08] - lsr x3 ;[09] -rxbit1: - in x2, USBIN ;[00] [10] <-- sample bit 1/3/5 - andi x2, USBMASK ;[01] - breq se0 ;[02] - eor x1, x2 ;[03] - subi x1, 1 ;[04] - ror shift ;[05] - cpi shift, 0xfc ;[06] - brcc unstuffOdd ;[07] -didUnstuffO: - subi bitcnt, 0xab;[08] == addi 0x55, 0x55 = 0x100/3 - brcs rxBitLoop ;[09] - - subi cnt, 1 ;[10] - in x1, USBIN ;[00] [11] <-- sample bit 6 - brcc rxByteLoop ;[01] - rjmp overflow - -macro POP_STANDARD ; 14 cycles - pop cnt - pop x4 - pop x3 - pop x2 - pop x1 - pop shift - pop bitcnt -endm -macro POP_RETI ; 7 cycles - pop YH - pop YL - out SREG, YL - pop YL -endm - -#include "asmcommon.inc" - -; USB spec says: -; idle = J -; J = (D+ = 0), (D- = 1) -; K = (D+ = 1), (D- = 0) -; Spec allows 7.5 bit times from EOP to SOP for replies - -bitstuffN: - eor x1, x4 ;[5] - ldi x2, 0 ;[6] - nop2 ;[7] - nop ;[9] - out USBOUT, x1 ;[10] <-- out - rjmp didStuffN ;[0] - -bitstuff6: - eor x1, x4 ;[5] - ldi x2, 0 ;[6] Carry is zero due to brcc - rol shift ;[7] compensate for ror shift at branch destination - rjmp didStuff6 ;[8] - -bitstuff7: - ldi x2, 0 ;[2] Carry is zero due to brcc - rjmp didStuff7 ;[3] - - -sendNakAndReti: - ldi x3, USBPID_NAK ;[-18] - rjmp sendX3AndReti ;[-17] -sendAckAndReti: - ldi cnt, USBPID_ACK ;[-17] -sendCntAndReti: - mov x3, cnt ;[-16] -sendX3AndReti: - ldi YL, 20 ;[-15] x3==r20 address is 20 - ldi YH, 0 ;[-14] - ldi cnt, 2 ;[-13] -; rjmp usbSendAndReti fallthrough - -;usbSend: -;pointer to data in 'Y' -;number of bytes in 'cnt' -- including sync byte [range 2 ... 12] -;uses: x1...x4, btcnt, shift, cnt, Y -;Numbers in brackets are time since first bit of sync pattern is sent -;We don't match the transfer rate exactly (don't insert leap cycles every third -;byte) because the spec demands only 1.5% precision anyway. -usbSendAndReti: ; 12 cycles until SOP - in x2, USBDDR ;[-12] - ori x2, USBMASK ;[-11] - sbi USBOUT, USBMINUS;[-10] prepare idle state; D+ and D- must have been 0 (no pullups) - in x1, USBOUT ;[-8] port mirror for tx loop - out USBDDR, x2 ;[-7] <- acquire bus -; need not init x2 (bitstuff history) because sync starts with 0 - ldi x4, USBMASK ;[-6] exor mask - ldi shift, 0x80 ;[-5] sync byte is first byte sent -txByteLoop: - ldi bitcnt, 0x35 ;[-4] [6] binary 0011 0101 -txBitLoop: - sbrs shift, 0 ;[-3] [7] - eor x1, x4 ;[-2] [8] - out USBOUT, x1 ;[-1] [9] <-- out N - ror shift ;[0] [10] - ror x2 ;[1] -didStuffN: - cpi x2, 0xfc ;[2] - brcc bitstuffN ;[3] - lsr bitcnt ;[4] - brcc txBitLoop ;[5] - brne txBitLoop ;[6] - - sbrs shift, 0 ;[7] - eor x1, x4 ;[8] -didStuff6: - out USBOUT, x1 ;[-1] [9] <-- out 6 - ror shift ;[0] [10] - ror x2 ;[1] - cpi x2, 0xfc ;[2] - brcc bitstuff6 ;[3] - ror shift ;[4] -didStuff7: - ror x2 ;[5] - sbrs x2, 7 ;[6] - eor x1, x4 ;[7] - nop ;[8] - cpi x2, 0xfc ;[9] - out USBOUT, x1 ;[-1][10] <-- out 7 - brcc bitstuff7 ;[0] [11] - ld shift, y+ ;[1] - dec cnt ;[3] - brne txByteLoop ;[4] -;make SE0: - cbr x1, USBMASK ;[5] prepare SE0 [spec says EOP may be 21 to 25 cycles] - lds x2, usbNewDeviceAddr;[6] - lsl x2 ;[8] we compare with left shifted address - subi YL, 20 + 2 ;[9] Only assign address on data packets, not ACK/NAK in x3 - sbci YH, 0 ;[10] - out USBOUT, x1 ;[11] <-- out SE0 -- from now 2 bits = 22 cycles until bus idle -;2006-03-06: moved transfer of new address to usbDeviceAddr from C-Code to asm: -;set address only after data packet was sent, not after handshake - breq skipAddrAssign ;[0] - sts usbDeviceAddr, x2; if not skipped: SE0 is one cycle longer -skipAddrAssign: -;end of usbDeviceAddress transfer - ldi x2, 1< max 52 cycles interrupt disable -;max stack usage: [ret(2), r0, SREG, YL, YH, shift, x1, x2, x3, x4, cnt] = 12 bytes -;nominal frequency: 16.5 MHz -> 11 cycles per bit -; 16.3125 MHz < F_CPU < 16.6875 MHz (+/- 1.1%) -; Numbers in brackets are clocks counted from center of last sync bit -; when instruction starts - - -USB_INTR_VECTOR: -;order of registers pushed: YL, SREG [sofError], r0, YH, shift, x1, x2, x3, x4, cnt - push YL ;[-23] push only what is necessary to sync with edge ASAP - in YL, SREG ;[-21] - push YL ;[-20] -;---------------------------------------------------------------------------- -; Synchronize with sync pattern: -;---------------------------------------------------------------------------- -;sync byte (D-) pattern LSb to MSb: 01010100 [1 = idle = J, 0 = K] -;sync up with J to K edge during sync pattern -- use fastest possible loops -;first part has no timeout because it waits for IDLE or SE1 (== disconnected) -waitForJ: - sbis USBIN, USBMINUS ;[-18] wait for D- == 1 - rjmp waitForJ -waitForK: -;The following code results in a sampling window of < 1/4 bit which meets the spec. - sbis USBIN, USBMINUS ;[-15] - rjmp foundK ;[-14] - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK -#if USB_COUNT_SOF - lds YL, usbSofCount - inc YL - sts usbSofCount, YL -#endif /* USB_COUNT_SOF */ - rjmp sofError -foundK: ;[-12] -;{3, 5} after falling D- edge, average delay: 4 cycles [we want 5 for center sampling] -;we have 1 bit time for setup purposes, then sample again. Numbers in brackets -;are cycles from center of first sync (double K) bit after the instruction - push r0 ;[-12] -; [---] ;[-11] - push YH ;[-10] -; [---] ;[-9] - lds YL, usbInputBufOffset;[-8] -; [---] ;[-7] - clr YH ;[-6] - subi YL, lo8(-(usbRxBuf));[-5] [rx loop init] - sbci YH, hi8(-(usbRxBuf));[-4] [rx loop init] - mov r0, x2 ;[-3] [rx loop init] - sbis USBIN, USBMINUS ;[-2] we want two bits K (sample 2 cycles too early) - rjmp haveTwoBitsK ;[-1] - pop YH ;[0] undo the pushes from before - pop r0 ;[2] - rjmp waitForK ;[4] this was not the end of sync, retry -; The entire loop from waitForK until rjmp waitForK above must not exceed two -; bit times (= 22 cycles). - -;---------------------------------------------------------------------------- -; push more registers and initialize values while we sample the first bits: -;---------------------------------------------------------------------------- -haveTwoBitsK: ;[1] - push shift ;[1] - push x1 ;[3] - push x2 ;[5] - push x3 ;[7] - ldi shift, 0xff ;[9] [rx loop init] - ori x3, 0xff ;[10] [rx loop init] == ser x3, clear zero flag - - in x1, USBIN ;[11] <-- sample bit 0 - bst x1, USBMINUS ;[12] - bld shift, 0 ;[13] - push x4 ;[14] == phase -; [---] ;[15] - push cnt ;[16] -; [---] ;[17] - ldi phase, 0 ;[18] [rx loop init] - ldi cnt, USB_BUFSIZE;[19] [rx loop init] - rjmp rxbit1 ;[20] -; [---] ;[21] - -;---------------------------------------------------------------------------- -; Receiver loop (numbers in brackets are cycles within byte after instr) -;---------------------------------------------------------------------------- -/* -byte oriented operations done during loop: -bit 0: store data -bit 1: SE0 check -bit 2: overflow check -bit 3: catch up -bit 4: rjmp to achieve conditional jump range -bit 5: PLL -bit 6: catch up -bit 7: jump, fixup bitstuff -; 87 [+ 2] cycles ------------------------------------------------------------------- -*/ -continueWithBit5: - in x2, USBIN ;[055] <-- bit 5 - eor r0, x2 ;[056] - or phase, r0 ;[057] - sbrc phase, USBMINUS ;[058] - lpm ;[059] optional nop3; modifies r0 - in phase, USBIN ;[060] <-- phase - eor x1, x2 ;[061] - bst x1, USBMINUS ;[062] - bld shift, 5 ;[063] - andi shift, 0x3f ;[064] - in x1, USBIN ;[065] <-- bit 6 - breq unstuff5 ;[066] *** unstuff escape - eor phase, x1 ;[067] - eor x2, x1 ;[068] - bst x2, USBMINUS ;[069] - bld shift, 6 ;[070] -didUnstuff6: ;[ ] - in r0, USBIN ;[071] <-- phase - cpi shift, 0x02 ;[072] - brlo unstuff6 ;[073] *** unstuff escape -didUnstuff5: ;[ ] - nop2 ;[074] -; [---] ;[075] - in x2, USBIN ;[076] <-- bit 7 - eor x1, x2 ;[077] - bst x1, USBMINUS ;[078] - bld shift, 7 ;[079] -didUnstuff7: ;[ ] - eor r0, x2 ;[080] - or phase, r0 ;[081] - in r0, USBIN ;[082] <-- phase - cpi shift, 0x04 ;[083] - brsh rxLoop ;[084] -; [---] ;[085] -unstuff7: ;[ ] - andi x3, ~0x80 ;[085] - ori shift, 0x80 ;[086] - in x2, USBIN ;[087] <-- sample stuffed bit 7 - nop ;[088] - rjmp didUnstuff7 ;[089] -; [---] ;[090] - ;[080] - -unstuff5: ;[067] - eor phase, x1 ;[068] - andi x3, ~0x20 ;[069] - ori shift, 0x20 ;[070] - in r0, USBIN ;[071] <-- phase - mov x2, x1 ;[072] - nop ;[073] - nop2 ;[074] -; [---] ;[075] - in x1, USBIN ;[076] <-- bit 6 - eor r0, x1 ;[077] - or phase, r0 ;[078] - eor x2, x1 ;[079] - bst x2, USBMINUS ;[080] - bld shift, 6 ;[081] no need to check bitstuffing, we just had one - in r0, USBIN ;[082] <-- phase - rjmp didUnstuff5 ;[083] -; [---] ;[084] - ;[074] - -unstuff6: ;[074] - andi x3, ~0x40 ;[075] - in x1, USBIN ;[076] <-- bit 6 again - ori shift, 0x40 ;[077] - nop2 ;[078] -; [---] ;[079] - rjmp didUnstuff6 ;[080] -; [---] ;[081] - ;[071] - -unstuff0: ;[013] - eor r0, x2 ;[014] - or phase, r0 ;[015] - andi x2, USBMASK ;[016] check for SE0 - in r0, USBIN ;[017] <-- phase - breq didUnstuff0 ;[018] direct jump to se0 would be too long - andi x3, ~0x01 ;[019] - ori shift, 0x01 ;[020] - mov x1, x2 ;[021] mov existing sample - in x2, USBIN ;[022] <-- bit 1 again - rjmp didUnstuff0 ;[023] -; [---] ;[024] - ;[014] - -unstuff1: ;[024] - eor r0, x1 ;[025] - or phase, r0 ;[026] - andi x3, ~0x02 ;[027] - in r0, USBIN ;[028] <-- phase - ori shift, 0x02 ;[029] - mov x2, x1 ;[030] - rjmp didUnstuff1 ;[031] -; [---] ;[032] - ;[022] - -unstuff2: ;[035] - eor r0, x2 ;[036] - or phase, r0 ;[037] - andi x3, ~0x04 ;[038] - in r0, USBIN ;[039] <-- phase - ori shift, 0x04 ;[040] - mov x1, x2 ;[041] - rjmp didUnstuff2 ;[042] -; [---] ;[043] - ;[033] - -unstuff3: ;[043] - in x2, USBIN ;[044] <-- bit 3 again - eor r0, x2 ;[045] - or phase, r0 ;[046] - andi x3, ~0x08 ;[047] - ori shift, 0x08 ;[048] - nop ;[049] - in r0, USBIN ;[050] <-- phase - rjmp didUnstuff3 ;[051] -; [---] ;[052] - ;[042] - -unstuff4: ;[053] - andi x3, ~0x10 ;[054] - in x1, USBIN ;[055] <-- bit 4 again - ori shift, 0x10 ;[056] - rjmp didUnstuff4 ;[057] -; [---] ;[058] - ;[048] - -rxLoop: ;[085] - eor x3, shift ;[086] reconstruct: x3 is 0 at bit locations we changed, 1 at others - in x1, USBIN ;[000] <-- bit 0 - st y+, x3 ;[001] -; [---] ;[002] - eor r0, x1 ;[003] - or phase, r0 ;[004] - eor x2, x1 ;[005] - in r0, USBIN ;[006] <-- phase - ser x3 ;[007] - bst x2, USBMINUS ;[008] - bld shift, 0 ;[009] - andi shift, 0xf9 ;[010] -rxbit1: ;[ ] - in x2, USBIN ;[011] <-- bit 1 - breq unstuff0 ;[012] *** unstuff escape - andi x2, USBMASK ;[013] SE0 check for bit 1 -didUnstuff0: ;[ ] Z only set if we detected SE0 in bitstuff - breq se0 ;[014] - eor r0, x2 ;[015] - or phase, r0 ;[016] - in r0, USBIN ;[017] <-- phase - eor x1, x2 ;[018] - bst x1, USBMINUS ;[019] - bld shift, 1 ;[020] - andi shift, 0xf3 ;[021] -didUnstuff1: ;[ ] - in x1, USBIN ;[022] <-- bit 2 - breq unstuff1 ;[023] *** unstuff escape - eor r0, x1 ;[024] - or phase, r0 ;[025] - subi cnt, 1 ;[026] overflow check - brcs overflow ;[027] - in r0, USBIN ;[028] <-- phase - eor x2, x1 ;[029] - bst x2, USBMINUS ;[030] - bld shift, 2 ;[031] - andi shift, 0xe7 ;[032] -didUnstuff2: ;[ ] - in x2, USBIN ;[033] <-- bit 3 - breq unstuff2 ;[034] *** unstuff escape - eor r0, x2 ;[035] - or phase, r0 ;[036] - eor x1, x2 ;[037] - bst x1, USBMINUS ;[038] - in r0, USBIN ;[039] <-- phase - bld shift, 3 ;[040] - andi shift, 0xcf ;[041] -didUnstuff3: ;[ ] - breq unstuff3 ;[042] *** unstuff escape - nop ;[043] - in x1, USBIN ;[044] <-- bit 4 - eor x2, x1 ;[045] - bst x2, USBMINUS ;[046] - bld shift, 4 ;[047] -didUnstuff4: ;[ ] - eor r0, x1 ;[048] - or phase, r0 ;[049] - in r0, USBIN ;[050] <-- phase - andi shift, 0x9f ;[051] - breq unstuff4 ;[052] *** unstuff escape - rjmp continueWithBit5;[053] -; [---] ;[054] - -macro POP_STANDARD ; 16 cycles - pop cnt - pop x4 - pop x3 - pop x2 - pop x1 - pop shift - pop YH - pop r0 -endm -macro POP_RETI ; 5 cycles - pop YL - out SREG, YL - pop YL -endm - -#include "asmcommon.inc" - - -; USB spec says: -; idle = J -; J = (D+ = 0), (D- = 1) -; K = (D+ = 1), (D- = 0) -; Spec allows 7.5 bit times from EOP to SOP for replies - -bitstuff7: - eor x1, x4 ;[4] - ldi x2, 0 ;[5] - nop2 ;[6] C is zero (brcc) - rjmp didStuff7 ;[8] - -bitstuffN: - eor x1, x4 ;[5] - ldi x2, 0 ;[6] - lpm ;[7] 3 cycle NOP, modifies r0 - out USBOUT, x1 ;[10] <-- out - rjmp didStuffN ;[0] - -#define bitStatus x3 - -sendNakAndReti: - ldi cnt, USBPID_NAK ;[-19] - rjmp sendCntAndReti ;[-18] -sendAckAndReti: - ldi cnt, USBPID_ACK ;[-17] -sendCntAndReti: - mov r0, cnt ;[-16] - ldi YL, 0 ;[-15] R0 address is 0 - ldi YH, 0 ;[-14] - ldi cnt, 2 ;[-13] -; rjmp usbSendAndReti fallthrough - -;usbSend: -;pointer to data in 'Y' -;number of bytes in 'cnt' -- including sync byte [range 2 ... 12] -;uses: x1...x4, shift, cnt, Y -;Numbers in brackets are time since first bit of sync pattern is sent -usbSendAndReti: ; 12 cycles until SOP - in x2, USBDDR ;[-12] - ori x2, USBMASK ;[-11] - sbi USBOUT, USBMINUS;[-10] prepare idle state; D+ and D- must have been 0 (no pullups) - in x1, USBOUT ;[-8] port mirror for tx loop - out USBDDR, x2 ;[-7] <- acquire bus -; need not init x2 (bitstuff history) because sync starts with 0 - ldi x4, USBMASK ;[-6] exor mask - ldi shift, 0x80 ;[-5] sync byte is first byte sent - ldi bitStatus, 0xff ;[-4] init bit loop counter, works for up to 12 bytes -byteloop: -bitloop: - sbrs shift, 0 ;[8] [-3] - eor x1, x4 ;[9] [-2] - out USBOUT, x1 ;[10] [-1] <-- out - ror shift ;[0] - ror x2 ;[1] -didStuffN: - cpi x2, 0xfc ;[2] - brcc bitstuffN ;[3] - nop ;[4] - subi bitStatus, 37 ;[5] 256 / 7 ~=~ 37 - brcc bitloop ;[6] when we leave the loop, bitStatus has almost the initial value - sbrs shift, 0 ;[7] - eor x1, x4 ;[8] - ror shift ;[9] -didStuff7: - out USBOUT, x1 ;[10] <-- out - ror x2 ;[0] - cpi x2, 0xfc ;[1] - brcc bitstuff7 ;[2] - ld shift, y+ ;[3] - dec cnt ;[5] - brne byteloop ;[6] -;make SE0: - cbr x1, USBMASK ;[7] prepare SE0 [spec says EOP may be 21 to 25 cycles] - lds x2, usbNewDeviceAddr;[8] - lsl x2 ;[10] we compare with left shifted address - out USBOUT, x1 ;[11] <-- out SE0 -- from now 2 bits = 22 cycles until bus idle -;2006-03-06: moved transfer of new address to usbDeviceAddr from C-Code to asm: -;set address only after data packet was sent, not after handshake - subi YL, 2 ;[0] Only assign address on data packets, not ACK/NAK in r0 - sbci YH, 0 ;[1] - breq skipAddrAssign ;[2] - sts usbDeviceAddr, x2; if not skipped: SE0 is one cycle longer -skipAddrAssign: -;end of usbDeviceAddress transfer - ldi x2, 1< 13.333333 cycles per bit, 106.666667 cycles per byte -; Numbers in brackets are clocks counted from center of last sync bit -; when instruction starts -;register use in receive loop: -; shift assembles the byte currently being received -; x1 holds the D+ and D- line state -; x2 holds the previous line state -; x4 (leap) is used to add a leap cycle once every three bytes received -; X3 (leap2) is used to add a leap cycle once every three stuff bits received -; bitcnt is used to determine when a stuff bit is due -; cnt holds the number of bytes left in the receive buffer - -USB_INTR_VECTOR: -;order of registers pushed: YL, SREG YH, [sofError], bitcnt, shift, x1, x2, x3, x4, cnt - push YL ;[-28] push only what is necessary to sync with edge ASAP - in YL, SREG ;[-26] - push YL ;[-25] - push YH ;[-23] -;---------------------------------------------------------------------------- -; Synchronize with sync pattern: -;---------------------------------------------------------------------------- -;sync byte (D-) pattern LSb to MSb: 01010100 [1 = idle = J, 0 = K] -;sync up with J to K edge during sync pattern -- use fastest possible loops -;first part has no timeout because it waits for IDLE or SE1 (== disconnected) -waitForJ: - sbis USBIN, USBMINUS ;[-21] wait for D- == 1 - rjmp waitForJ -waitForK: -;The following code results in a sampling window of < 1/4 bit which meets the spec. - sbis USBIN, USBMINUS ;[-19] - rjmp foundK ;[-18] - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK - sbis USBIN, USBMINUS - rjmp foundK -#if USB_COUNT_SOF - lds YL, usbSofCount - inc YL - sts usbSofCount, YL -#endif /* USB_COUNT_SOF */ - rjmp sofError -foundK: ;[-16] -;{3, 5} after falling D- edge, average delay: 4 cycles -;bit0 should be at 34 for center sampling. Currently at 4 so 30 cylces till bit 0 sample -;use 1 bit time for setup purposes, then sample again. Numbers in brackets -;are cycles from center of first sync (double K) bit after the instruction - push bitcnt ;[-16] -; [---] ;[-15] - lds YL, usbInputBufOffset;[-14] -; [---] ;[-13] - clr YH ;[-12] - subi YL, lo8(-(usbRxBuf));[-11] [rx loop init] - sbci YH, hi8(-(usbRxBuf));[-10] [rx loop init] - push shift ;[-9] -; [---] ;[-8] - ldi shift,0x40 ;[-7] set msb to "1" so processing bit7 can be detected - nop2 ;[-6] -; [---] ;[-5] - ldi bitcnt, 5 ;[-4] [rx loop init] - sbis USBIN, USBMINUS ;[-3] we want two bits K (sample 3 cycles too early) - rjmp haveTwoBitsK ;[-2] - pop shift ;[-1] undo the push from before - pop bitcnt ;[1] - rjmp waitForK ;[3] this was not the end of sync, retry -; The entire loop from waitForK until rjmp waitForK above must not exceed two -; bit times (= 27 cycles). - -;---------------------------------------------------------------------------- -; push more registers and initialize values while we sample the first bits: -;---------------------------------------------------------------------------- -haveTwoBitsK: - push x1 ;[0] - push x2 ;[2] - push x3 ;[4] (leap2) - ldi leap2, 0x55 ;[6] add leap cycle on 2nd,5th,8th,... stuff bit - push x4 ;[7] == leap - ldi leap, 0x55 ;[9] skip leap cycle on 2nd,5th,8th,... byte received - push cnt ;[10] - ldi cnt, USB_BUFSIZE ;[12] [rx loop init] - ldi x2, 1< - * - * inspired by USBasploader by Christian Starkjohann, - * see http://www.obdev.at/products/avrusb/usbasploader.html - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - * - * This program 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 General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - * - * For more information on the GPL, please go to: - * http://www.gnu.org/copyleft/gpl.html - */ - -#include -#include -#include -#include -#include -#include -#include - -#include "config.h" -#include "usbdrv/usbdrv.c" - -/* USBasp requests, taken from the original USBasp sourcecode */ -#define USBASP_FUNC_CONNECT 1 -#define USBASP_FUNC_DISCONNECT 2 -#define USBASP_FUNC_TRANSMIT 3 -#define USBASP_FUNC_READFLASH 4 -#define USBASP_FUNC_ENABLEPROG 5 -#define USBASP_FUNC_WRITEFLASH 6 -#define USBASP_FUNC_READEEPROM 7 -#define USBASP_FUNC_WRITEEEPROM 8 -#define USBASP_FUNC_SETLONGADDRESS 9 - -/* additional functions */ -#define FUNC_ECHO 0x17 - -/* atmel isp commands */ -#define ISP_CHIP_ERASE1 0xAC -#define ISP_CHIP_ERASE2 0x80 -#define ISP_READ_SIGNATURE 0x30 -#define ISP_READ_EEPROM 0xa0 -#define ISP_WRITE_EEPROM 0xc0 - -/* some predefined signatures, taken from the original USBasp sourcecode */ -static const uint8_t signature[4] = { -#ifdef SIGNATURE_BYTES - SIGNATURE_BYTES -#elif defined (__AVR_ATmega8__) || defined (__AVR_ATmega8HVA__) - 0x1e, 0x93, 0x07, 0 -#elif defined (__AVR_ATmega48__) || defined (__AVR_ATmega48P__) - 0x1e, 0x92, 0x05, 0 -#elif defined (__AVR_ATmega88__) || defined (__AVR_ATmega88P__) - 0x1e, 0x93, 0x0a, 0 -#elif defined (__AVR_ATmega168__) || defined (__AVR_ATmega168P__) - 0x1e, 0x94, 0x06, 0 -#elif defined (__AVR_ATmega328P__) - 0x1e, 0x95, 0x0f, 0 -#else -# error "Device signature is not known, please edit config.h!" -#endif -}; - -#ifndef BOOT_SECTION_START -# error "BOOT_SECTION_START undefined!" -#endif - -#ifdef DEBUG_UART -static __attribute__ (( __noinline__ )) void putc(uint8_t data) { - while(!(UCSR0A & _BV(UDRE0))); - UDR0 = data; -} -#else -#define putc(x) -#endif - -/* supply custom usbDeviceConnect() and usbDeviceDisconnect() macros - * which turn the interrupt on and off at the right times, - * and prevent the execution of an interrupt while the pullup resistor - * is switched off */ -#ifdef USB_CFG_PULLUP_IOPORTNAME -#undef usbDeviceConnect -#define usbDeviceConnect() do { \ - USB_PULLUP_DDR |= (1< 0xffff -# error "usbload only supports up to 64kb of flash!" -#endif - -/* we are just checking the lower byte of flash_address, - * so make sure SPM_PAGESIZE is <= 256 - */ -#if SPM_PAGESIZE > 256 -# error "SPM_PAGESIZE is too big (just checking lower byte)" -#endif - -/* start flash (byte address) read/write at this address */ -usbWord_t flash_address; -uint8_t bytes_remaining; -uint8_t request; -uint8_t request_exit; - -uint8_t timeout; - -usbMsgLen_t usbFunctionSetup(uchar data[8]) -{ - usbRequest_t *req = (void *)data; - uint8_t len = 0; - static uint8_t buf[4]; - - /* set global data pointer to local buffer */ - usbMsgPtr = buf; - - /* on enableprog just return one zero, which means success */ - if (req->bRequest == USBASP_FUNC_ENABLEPROG) { - buf[0] = 0; - len = 1; - timeout = 255; - } else if (req->bRequest == USBASP_FUNC_CONNECT) { - /* turn on led */ - PORTD |= _BV(PD3); - } else if (req->bRequest == USBASP_FUNC_DISCONNECT) { - /* turn off led */ - PORTD &= ~_BV(PD3); - request_exit = 1; - /* catch query for the devicecode, chip erase and eeprom byte requests */ - } else if (req->bRequest == USBASP_FUNC_TRANSMIT) { - - /* reset buffer with zeroes */ - memset(buf, '\0', sizeof(buf)); - - /* read the address for eeprom operations */ - usbWord_t address; - address.bytes[0] = data[4]; /* low byte is data[4] */ - address.bytes[1] = data[3]; /* high byte is data[3] */ - - /* if this is a request to read the device signature, answer with the - * appropiate signature byte */ - if (data[2] == ISP_READ_SIGNATURE) { - /* the complete isp data is reported back to avrdude, but we just need byte 4 - * bits 0 and 1 of byte 3 determine the signature byte address */ - buf[3] = signature[data[4] & 0x03]; - -#ifdef ENABLE_CATCH_EEPROM_ISP - /* catch eeprom read */ - } else if (data[2] == ISP_READ_EEPROM) { - - buf[3] = eeprom_read_byte((uint8_t *)address.word); - - /* catch eeprom write */ - } else if (data[2] == ISP_WRITE_EEPROM) { - - /* address is in data[4], data[3], and databyte is in data[5] */ - eeprom_write_byte((uint8_t *)address.word, data[5]); -#endif - - /* catch a chip erase */ - } else if (data[2] == ISP_CHIP_ERASE1 && data[3] == ISP_CHIP_ERASE2) { - for (flash_address.word = 0; - flash_address.word < BOOT_SECTION_START; - flash_address.word += SPM_PAGESIZE) { - - /* wait and erase page */ - boot_spm_busy_wait(); - cli(); - boot_page_erase(flash_address.word); - sei(); - } - } - - /* in case no data has been filled in by the if's above, just return zeroes */ - len = 4; - -#ifdef ENABLE_ECHO_FUNC - /* implement a simple echo function, for testing the usb connectivity */ - } else if (req->bRequest == FUNC_ECHO) { - buf[0] = req->wValue.bytes[0]; - buf[1] = req->wValue.bytes[1]; - len = 2; -#endif - } else if (req->bRequest >= USBASP_FUNC_READFLASH) { - /* && req->bRequest <= USBASP_FUNC_SETLONGADDRESS */ - - putc('R'); - putc(req->bRequest); - - /* extract address and length */ - flash_address.word = req->wValue.word; - bytes_remaining = req->wLength.bytes[0]; - request = req->bRequest; - /* hand control over to usbFunctionRead()/usbFunctionWrite() */ - len = 0xff; - } - - return len; -} - -uchar usbFunctionWrite(uchar *data, uchar len) -{ - if (len > bytes_remaining) - len = bytes_remaining; - bytes_remaining -= len; - - if (request == USBASP_FUNC_WRITEEEPROM) { - for (uint8_t i = 0; i < len; i++) - eeprom_write_byte((uint8_t *)flash_address.word++, *data++); - } else { - /* data is handled wordwise, adjust len */ - len /= 2; - len -= 1; - for (uint8_t i = 0; i <= len; i++) { - uint16_t *w = (uint16_t *)data; - cli(); - boot_page_fill(flash_address.word, *w); - sei(); - - usbWord_t next_address; - next_address.word = flash_address.word; - next_address.word += 2; - data += 2; - - /* write page if page boundary is crossed or this is the last page */ - if ( next_address.bytes[0] % SPM_PAGESIZE == 0 || - (bytes_remaining == 0 && i == len) ) { - cli(); - boot_page_write(flash_address.word); - sei(); - boot_spm_busy_wait(); - cli(); - boot_rww_enable(); - sei(); - } - - flash_address.word = next_address.word; - } - } - - /* flash led on activity */ - PORTC ^= _BV(PC4); - - return (bytes_remaining == 0); -} - -uchar usbFunctionRead(uchar *data, uchar len) -{ - if(len > bytes_remaining) - len = bytes_remaining; - bytes_remaining -= len; - - for (uint8_t i = 0; i < len; i++) { - if(request == USBASP_FUNC_READEEPROM) - *data = eeprom_read_byte((void *)flash_address.word); - else - *data = pgm_read_byte_near((void *)flash_address.word); - data++; - flash_address.word++; - } - - /* flash led on activity */ - PORTC ^= _BV(PC4); - - return len; -} - -void leave_bootloader(void) -{ - - /* move interrupts to application section */ - cli(); - MCUCR = (1 << IVCE); - MCUCR = 0; - - /* disconnect usb */ - usbDeviceDisconnect(); - - /* reset usb interrupt configuration */ - USB_INTR_CFG = 0; - - /* reconfigure pins */ - DDRC = 0; - DDRD = 0; - PORTC = 0; - PORTD = 0; - - /* start main program at address 0 */ - asm volatile ("jmp 0"); -} - -int __attribute__ ((noreturn,OS_main)) main(void) -{ - /* start bootloader */ - -#ifdef DEBUG_UART - /* init uart (115200 baud, at 20mhz) */ - UBRR0L = 10; - UCSR0C = _BV(UCSZ00) | _BV(UCSZ01); - UCSR0B = _BV(TXEN0); - putc('b'); -#endif - - uint8_t reset = MCUSR & ~_BV(PORF); - - /* if we have not been reset externally, start application */ - if (!(reset == _BV(EXTRF)) && pgm_read_byte_near((void *)0) != 0xff) - leave_bootloader(); - - /* clear external reset flags */ - MCUSR = 0; - - /* init exit request state */ - request_exit = 0; - - /* init led pins (led1 and led2) */ - DDRC = _BV(PC4); - PORTC = _BV(PC4); - DDRD = _BV(PD3); - - /* move interrupts to boot section */ - MCUCR = (1 << IVCE); - MCUCR = (1 << IVSEL); - - /* enable interrupts */ - sei(); - - /* initialize usb pins */ - usbInit(); - - /* disconnect for ~500ms, so that the host re-enumerates this device */ - usbDeviceDisconnect(); - for (uint8_t i = 0; i < 38; i++) - _delay_loop_2(0); /* 0 means 0x10000, 38*1/f*0x10000 =~ 498ms */ - usbDeviceConnect(); - - uint16_t delay; - timeout = TIMEOUT; - - while(1) { - usbPoll(); - delay++; - - /* do some led blinking, so that it is visible that the bootloader is still running */ - if (delay == 0) { - PORTC ^= _BV(PC4); - if (timeout < 255) - timeout--; - } - - if (request_exit || timeout == 0) { - _delay_loop_2(0); - leave_bootloader(); - } - } - - leave_bootloader(); -}