319 lines
14 KiB
Plaintext
319 lines
14 KiB
Plaintext
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 <avr/io.h> 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
|
|
|
|
- Fixed bug in libs-host/hiddata.c function usbhidGetReport(): length
|
|
was not incremented, pointer to length was incremented instead.
|
|
- Added code to command line tool(s) which claims an interface. This code
|
|
is disabled by default, but may be necessary on newer Linux kernels.
|
|
- Added usbconfig.h option "USB_CFG_CHECK_DATA_TOGGLING".
|
|
- New header "usbportability.h" prepares ports to other development
|
|
environments.
|
|
- Long transfers (above 254 bytes) did not work when usbFunctionRead() was
|
|
used to supply the data. Fixed this bug. [Thanks to Alexander Neumann!]
|
|
- In hiddata.c (example code for sending/receiving data over HID), use
|
|
USB_RECIP_DEVICE instead of USB_RECIP_INTERFACE for control transfers so
|
|
that we need not claim the interface.
|
|
- in usbPoll() loop 20 times polling for RESET state instead of 10 times.
|
|
This accounts for the higher clock rates we now support.
|
|
- Added a module for 12.8 MHz RC oscillator with PLL in receiver loop.
|
|
- Added hook to SOF code so that oscillator can be tuned to USB frame clock.
|
|
- Added timeout to waitForJ loop. Helps preventing unexpected hangs.
|
|
- Added example code for oscillator tuning to libs-device (thanks to
|
|
Henrik Haftmann for the idea to this routine).
|
|
- Implemented option USB_CFG_SUPPRESS_INTR_CODE.
|
|
|
|
* Release 2008-10-22
|
|
|
|
- Fixed libs-device/osctune.h: OSCCAL is memory address on ATMega88 and
|
|
similar, not offset of 0x20 needs to be added.
|
|
- Allow distribution under GPLv3 for those who have to link against other
|
|
code distributed under GPLv3.
|
|
|
|
* Release 2008-11-26
|
|
|
|
- Removed libusb-win32 dependency for hid-data example in Makefile.windows.
|
|
It was never required and confused many people.
|
|
- Added extern uchar usbRxToken to usbdrv.h.
|
|
- Integrated a module with CRC checks at 18 MHz by Lukas Schrittwieser.
|
|
|
|
* Release 2009-03-23
|
|
|
|
- Hid-mouse example used settings from hid-data example, fixed that.
|
|
- Renamed project to V-USB due to a trademark issue with Atmel(r).
|
|
- Changed CommercialLicense.txt and USBID-License.txt to make the
|
|
background of USB ID registration clearer.
|
|
|
|
* Release 2009-04-15
|
|
|
|
- Changed CommercialLicense.txt to reflect the new range of PIDs from
|
|
Jason Kotzin.
|
|
- Removed USBID-License.txt in favor of USB-IDs-for-free.txt and
|
|
USB-ID-FAQ.txt
|
|
- Fixed a bug in the 12.8 MHz module: End Of Packet decection was made in
|
|
the center between bit 0 and 1 of each byte. This is where the data lines
|
|
are expected to change and the sampled data may therefore be nonsense.
|
|
We therefore check EOP ONLY if bits 0 AND 1 have both been read as 0 on D-.
|
|
- Fixed a bitstuffing problem in the 16 MHz module: If bit 6 was stuffed,
|
|
the unstuffing code in the receiver routine was 1 cycle too long. If
|
|
multiple bytes had the unstuffing in bit 6, the error summed up until the
|
|
receiver was out of sync.
|
|
- Included option for faster CRC routine.
|
|
Thanks to Slawomir Fras (BoskiDialer) for this code!
|
|
- Updated bits in Configuration Descriptor's bmAttributes according to
|
|
USB 1.1 (in particular bit 7, it is a must-be-set bit now).
|
|
|
|
* Release 2009-08-22
|
|
|
|
- Moved first DBG1() after odDebugInit() in all examples.
|
|
- Use vector INT0_vect instead of SIG_INTERRUPT0 if defined. This makes
|
|
V-USB compatible with the new "p" suffix devices (e.g. ATMega328p).
|
|
- USB_CFG_CLOCK_KHZ setting is now required in usbconfig.h (no default any
|
|
more).
|
|
- New option USB_CFG_DRIVER_FLASH_PAGE allows boot loaders on devices with
|
|
more than 64 kB flash.
|
|
- Built-in configuration descriptor allows custom definition for second
|
|
endpoint now.
|
|
|
|
* Release 2010-07-15
|
|
|
|
- Fixed bug in usbDriverSetup() which prevented descriptor sizes above 255
|
|
bytes.
|
|
- Avoid a compiler warning for unused parameter in usbHandleResetHook() when
|
|
compiler option -Wextra is enabled.
|
|
- Fixed wrong hex value for some IDs in USB-IDs-for-free.txt.
|
|
- Keep a define for USBATTR_BUSPOWER, although the flag does not exist
|
|
in USB 1.1 any more. Set it to 0. This is for backward compatibility.
|
|
|
|
* Release 2012-01-09
|