94e8da087ed624e08a68a166260c24dfee905dde
[pub/USBasp.git] / LUFA / ChangeLog.txt
1 /** \file
2 *
3 * This file contains special DoxyGen information for the generation of the main page and other special
4 * documentation pages. It is not a project source file.
5 */
6
7 ========== TODO: ===========
8 - Fix bootloaders - make compatible with smaller USB AVRS (USB_IsConnected, RAMPZ)
9 - Document new device class drivers
10 - Made new host class drivers
11 - Document new host class drivers
12 - Convert Host mode demos to class drivers
13 - Convert Host mode demos to schedulerless
14 - Add standardized descriptor names to class driver structures, controlled by USE_NONSTANDARD_DESCRIPTOR_NAMES
15 ============================
16
17 /** \page Page_ChangeLog Project Changelog
18 *
19 * \section Sec_ChangeLogXXXXXX Version XXXXXX
20 *
21 * - Removed psuedo-scheduler, dynamic memory block allocator from the library (no longer needed and not used respectively)
22 * - Added new class drivers and matching demos to the library for rapid application development
23 *
24 *
25 * \section Sec_ChangeLog090605 Version 090605
26 *
27 * - Fixed bug in RNDISEthernet and DualCDC demos not using the correct USB_ControlRequest structure for control request data
28 * - Fixed documentation showing incorrect USB mode support on the supported AVRs list
29 * - Fixed RNDISEthernet not working under Linux due to Linux requiring an "optional" RNDIS request which was unhandled
30 * - Fixed Mouse and Keyboard device demos not acting in accordance with the HID specification for idle periods (thanks to Brian Dickman)
31 * - Removed support for endpoint/pipe non-control interrupts; these did not act in the way users expected, and had many subtle issues
32 * - Fixed Device Mode not handling Set Feature and Clear Feature Chapter 9 requests that are addressed to the device (thanks to Brian Dickman)
33 * - Moved control endpoint interrupt handling into the library itself, enable via the new INTERRUPT_CONTROL_ENDPOINT token
34 * - Fixed CDCHost not clearing configured pipes and resetting configured pipes mask when a partially enumerated invalid CDC
35 * interface is skipped
36 * - Clarified the size of library tokens which accept integer values in the Compile Time Tokens page, values now use the smallest datatype
37 * inside the library that is able to hold their defined value to save space
38 * - Removed DESCRIPTOR_ADDRESS() macro as it was largely supurflous and only served to obfuscate code
39 * - Rewritten event system to remove all macros, to make user code clearer
40 * - Fixed incorrect ENDPOINT_EPNUM_MASK mask preventing endpoints above EP3 from being selected (thanks to Jonathan Oakley)
41 * - Removed STREAM_CALLBACK() macro - callbacks now use regular function definitions to clarify user code
42 * - Removed DESCRIPTOR_COMPARATOR() macro - comparators should now use regular function definitions to clarify user code
43 * - USB_IsConnected is now cleared before the USB_Disconnect() event is fired in response to VBUS being removed
44 * - Fixed incorrect PID value being used in the USBtoSerial project (thanks to Phill)
45 * - Deleted StdDescriptors.c, renamed USB_GetDescriptor() to CALLBACK_USB_GetDescriptor, moved ConfigDescriptor.c/.h from the
46 * LUFA/Drivers/USB/Class/ directory to LUFA/Drivers/USB/HighLevel/ in preperation for the new USB class APIs
47 * - Moved out each demos' functionality library files (e.g. Ring Buffer library) to /Lib directories for a better directory structure
48 * - Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt
49 *
50 *
51 * \section Sec_ChangeLog090510 Version 090510
52 *
53 * - Added new GenericHIDHost demo
54 * - Corrections to the KeyboardHost and MouseHost demos' pipe handling to freeze and unfreeze the data pipes at the point of use
55 * - KeyboardHost, MouseHost and GenericHIDHost demos now save and restore the currently selected pipe inside the pipe ISR
56 * - Changed GenericHID device demo to use the LUFA scheduler, added INTERRUPT_DATA_ENDPOINT and INTERRUPT_CONTROL_ENDPOINT compile
57 * time options
58 * - All comments in the library, bootloaders, demos and projects have now been spell-checked and spelling mistakes/typos corrected
59 * - Added new PIMA_DATA_SIZE() define to the Still Image Host demo
60 * - Add call to MassStore_WaitForDataReceived() in MassStore_GetReturnedStatus() to ensure that the CSW has been received in the
61 * extended MSC timeout period before continuing, to prevent long processing delays from causing the MassStore_GetReturnedStatus()
62 * to early-abort (thanks to Dmitry Maksimov)
63 * - Move StdRequestType.h, StreamCallbacks.h, USBMode.h from the LowLevel USB driver directory to the HighLevel USB driver directory,
64 * where they are more suited
65 * - Removed all binary constants and replaced with decimal or hexadecimal constants so that unpatched GCC compilers can still build the
66 * code without having to be itself patched and recompiled first
67 * - Added preprocessor checks and documentation to the bootloaders giving information about missing SIGNATURE_x defines due to
68 * outdated avr-libc versions.
69 * - Added support to the CDCHost demo for devices with multiple CDC interfaces which are not the correct ACM type preceding the desired
70 * ACM CDC interface
71 * - Fixed GenericHID demo not starting USB and HID management tasks when not using interrupt driven modes (thanks to Carl Kjeldsen)
72 * - Fixed RNDISEthenet demo checking the incorrect message field for packet size constraints (thanks to Jonathan Oakley)
73 * - Fixed WriteNextReport code in the GenericHIDHost demo using incorrect parameter types and not selecting the correct endpoint
74 * - Adjusted sample CTC timer calculations in the AudioOutput and AudioInput demos to match the CTC calculations in the AVR datasheet,
75 * and to fix instances where rounding caused the endpoint to underflow (thanks to Robin Theunis)
76 * - The USB_Host_SendControlRequest() function no longer automatically selects the Control pipe (pipe 0), so that other control type
77 * pipes can be used with the function
78 * - The USB Host management task now saves and restores the currently selected pipe before and after the task completes
79 * - Fixed GenericHIDHost demo report write routine incorrect for control type requests (thanks to Andrei Krainev)
80 * - Removed Endpoint_ClearCurrentBank() and Pipe_ClearCurrentBank() in favour of new Endpoint_ClearIN(), Endpoint_ClearOUT(),
81 * Pipe_ClearIN() and Pipe_ClearOUT() macros (done to allow for the detection of packets of zero length)
82 * - Renamed *_ReadWriteAllowed() macros to *_IsReadWriteAllowed() to remain consistent with the rest of the LUFA API
83 * - Endpoint_IsSetupReceived() macro has been renamed to Endpoint_IsSETUPReceived(), Endpoint_ClearSetupReceived() macro has been
84 * renamed to Endpoint_ClearSETUP(), the Pipe_IsSetupSent() macro has been renamed to Pipe_IsSETUPSent() and the
85 * Pipe_ClearSetupSent() macro is no longer applicable and should be removed - changes made to compliment the new endpoint and pipe
86 * bank management API
87 * - Updated all demos, bootloaders and projects to use the new endpoint and pipe management APIs (thanks to Roman Thiel from Curetis AG)
88 * - Updated library doxygen documentation, added groups, changed documentation macro functions to real functions for clarity
89 * - Removed old endpoint and pipe aliased read/write/discard routines which did not have an explicit endian specifier for clarity
90 * - Removed the ButtLoadTag.h header file, as no one used for its intended purpose anyway
91 * - Renamed the main Drivers/AT90USBXXX directory to Drivers/Peripheral, renamed the Serial_Stream driver to SerialStream
92 * - Fixed CDC and USBtoSerial demos freezing where buffers were full while still transmitting or receiving (thanks to Peter Hand)
93 * - Removed "Host_" section of the function names in ConfigDescriptor.h, as most of the routines can now be used in device mode on the
94 * device descriptor
95 * - Renamed functions in the HID parser to have a "USB_" prefix and the acronym "HID" in the name
96 * - Fixed incorrect HID interface class and subclass values in the Mouse and KeyboardMouse demos (thanks to Brian Dickman)
97 * - Capitalised the "Descriptor_Search" and "Descriptor_Search_Comp" prefixes of the values in the DSearch_Return_ErrorCodes_t and
98 * DSearch_Comp_Return_ErrorCodes_t enums
99 * - Removed "ERROR" from the enum names in the endpoint and pipe stream error code enums
100 * - Renamed the USB_PowerOnErrorCodes_t enum to USB_InitErrorCodes_t, renamed the POWERON_ERROR_NoUSBModeSpecified enum value to
101 * USB_INITERROR_NoUSBModeSpecified
102 * - Renamed USB_PowerOnFail event to USB_InitFailure
103 * - Renamed OTG.h header functions to be more consistent with the rest of the library API
104 * - Changed over all deprecated GCC structure tag initializers to the standardized C99 format (thanks to Mike Alexander)
105 * - USB_HostRequest renamed to USB_ControlRequest, entire control request header is now read into USB_ControlRequest in Device mode
106 * rather than having the library pass only partially read header data to the application
107 * - The USB_UnhandledControlPacket event has had its parameters removed, in favour of accessing the new USB_ControlRequest structure
108 * - The Endpoint control stream functions now correctly send a ZLP to the host when less data than requested is sent
109 * - Fixed USB_RemoteWakeupEnabled flag never being set (the REMOTE WAKEUP Set Feature request was not being handled)
110 * - Renamed the FEATURELESS_CONTROL_ONLY_DEVICE compile-time token to CONTROL_ONLY_DEVICE
111 * - Endpoint configuration is now refined to give better output when all configurations have static inputs - removed the now useless
112 * STATIC_ENDPOINT_CONFIGURATION compile time token
113 * - Fixed SPI driver init function not clearing SPI2X bit when not needed
114 * - Fixed PREVENT ALLOW MEDIUM REMOVAL command issuing in the MassStorageHost demo using incorrect parameters (thanks to Mike Alex)
115 * - Fixed MassStorageHost demo broken due to an incorrect if statement test in MassStore_GetReturnedStatus()
116 * - Fixed reversed signature byte ordering in the CDC bootloader (thanks to Johannes Raschke)
117 * - Changed PIPE_CONTROLPIPE_DEFAULT_SIZE from 8 to 64 to try to prevent problems with faulty devices which do not respect the given
118 * wLength value when reading in the device descriptor
119 * - Fixed missing semicolon in the ATAVRUSBRF01 LED board driver code (thanks to Morten Lund)
120 * - Changed LED board driver code to define dummy LED masks for the first four board LEDs, so that user code can be compiled for boards
121 * with less than four LEDs without code modifications (thanks to Morten Lund)
122 * - Changed HWB board driver to Buttons driver, to allow for the support of future boards with more than one mounted GPIO button
123 * - Serial driver now correctly calculates the baud register value when in double speed mode
124 * - Init function of the Serial driver is now static inline to product smaller code for the common-case of static init values
125 *
126 *
127 * \section Sec_ChangeLog090401 Version 090401
128 *
129 * - Fixed MagStripe project configuration descriptor containing an unused (blank) endpoint descriptor
130 * - Incorporated makefile changes by Denver Gingerich to retain compatibility with stock (non-WinAVR) AVR-GCC installations
131 * - Fixed makefile EEPROM programming targets programming FLASH data in addition to EEPROM data
132 * - LUFA devices now enumerate correctly with LUFA hosts
133 * - Fixed Configuration Descriptor search routine freezing when a comparator returned a failure
134 * - Removed HID report item serial dump in the MouseHostWithParser and KeyboardHostWithParser - useful only for debugging, and
135 * slowed down the enumeration of HID devices too much
136 * - Increased the number of bits per track which can be read in the MagStripe project to 8192 when compiled for the AT90USBXXX6/7
137 * - Fixed KeyboardMouse demo discarding the wIndex value in the REQ_GetReport request
138 * - USBtoSerial demo now discards all Rx data when not connected to a USB host, rather than buffering characters for transmission
139 * next time the device is attached to a host.
140 * - Added new F_CLOCK compile time constant to the library and makefiles, to give the raw input clock (used to feed the PLL before any
141 * clock prescaling is performed) frequency, so that the PLL prescale mask can be determined
142 * - Changed stream wait timeout counter to be 16-bit, so that very long timeout periods can be set for correct communications with
143 * badly designed hosts or devices which greatly exceed the USB specification limits
144 * - Mass Storage Host demo now uses a USB_STREAM_TIMEOUT_MS of two seconds to maintain compatibility with poorly designed devices
145 * - Function attribute ATTR_ALWAYSINLINE renamed to ATTR_ALWAYS_INLINE to match other function attribute macro naming conventions
146 * - Added ATTR_ALWAYS_INLINE attribute to several key inlined library components, to ensure they are inlined in all circumstances
147 * - Removed SetSystemClockPrescaler() macro, the clock_prescale_set() avr-libc macro has been corrected in recent avr-libc versions
148 * - Fixed incorrect/missing control status stage transfers on demos, bootloaders and applications (thanks to Nate Lawson)
149 * - The NO_CLEARSET_FEATURE_REQUEST compile time token has been renamed to FEATURELESS_CONTROL_ONLY_DEVICE, and its function expanded
150 * to also remove parts of the Get Status chapter 9 request to further reduce code usage
151 * - Makefile updated to include output giving the currently selected BOARD parameter value
152 * - Board Dataflash driver now allows for dataflash ICs which use different shifts for setting the current page/byte address (thanks
153 * to Kenneth Clubb)
154 * - Added DataflashManager_WriteBlocks_RAM() and DataflashManager_ReadBlocks_RAM() functions to the MassStorage demo, to allow for easy
155 * interfacing with a FAT library for dataflash file level access
156 * - Corrected CDC class bootloader to fix a few bugs, changed address counter to store x2 addresses for convenience
157 * - Fixed typos in the SPI driver SPI_SPEED_FCPU_DIV_64 and SPI_SPEED_FCPU_DIV_128 masks (thanks to Markus Zocholl)
158 * - Keyboard and Mouse device demos (normal, data interrupt and fully interrupt driven) combined into unified keyboard and mouse demos
159 * - Keyboard and Mouse host demos (normal and data interrupt driven) combined into unified keyboard and mouse demos
160 * - Removed AVRISP_Programmer project due to code quality concerns
161 * - Fixed CDC demo not sending an empty packet after each transfer to prevent the host from buffering incoming data
162 * - Fixed documentation typos and preprocessor checks relating to misspellings of the USE_RAM_DESCRIPTORS token (thanks to Ian Gregg)
163 * - Fixed USBTask.h not conditionally including HostChapter9.h only when USB_CAN_BE_HOST is defined (thanks to Ian Gregg)
164 * - Fixed incorrect ADC driver init register manipulation (thanks to Tobias)
165 * - Added new GenericHID device demo application
166 * - Fixed Still Image Host SImage_SendData() function not clearing the pipe bank after sending data
167 *
168 *
169 * \section Sec_ChangeLog090209 Version 090209
170 *
171 * - PWM timer mode in AudioOut demo changed to Fast PWM for speed
172 * - Updated Magstripe project to work with the latest hardware revision
173 * - Fixed library not responding to the BCERRI flag correctly in host mode, leading to device lockups
174 * - Fixed library handling Get Descriptor requests when not addressed as standard requests to the device or interface (thanks to
175 * Nate Lawson)
176 * - Fixed serious data corruption issue in MassStorage demo dataflash write routine
177 * - Added new NO_CLEARSET_FEATURE_REQUEST compile time token
178 * - USB task now restores previous global interrupt state after execution, rather than forcing global interrupts to be enabled
179 * - Fixed USB_DeviceEnumerationComplete event firing after each configuration change, rather than once after the initial configuration
180 * - Added ENDPOINT_DOUBLEBANK_SUPPORTED() macros to Endpoint.h, altered ENDPOINT_MAX_SIZE() to allow user to specify endpoint
181 * - ENDPOINT_MAX_ENDPOINTS changed to ENDPOINT_TOTAL_ENDPOINTS, PIPE_MAX_PIPES changed to PIPE_TOTAL_PIPES
182 * - Endpoint and Pipe non-control stream functions now ensure endpoint or pipe is ready before reading or writing
183 * - Changed Teensy bootloader to use a watchdog reset when exiting rather than a software jump
184 * - Fixed integer promotion error in MassStorage and MassStorageHost demos, corrupting read/write transfers
185 * - SPI_SendByte is now SPI_TransferByte, added new SPI_SendByte and SPI_ReceiveByte functions for fast one-way transfer
186 * - MassStorage demo changed to use new fast one-way SPI transfers to increase throughput
187 * - MassStorage handling of Mass Storage Reset class request improved
188 * - Altered MassStorage demo dataflash block read code for speed
189 * - Added USB_IsSuspended global flag
190 * - Simplified internal Dual Mode (OTG) USB library code to reduce code size
191 * - Extended stream timeout period to 100ms from 50ms
192 * - Mass Storage Host demo commands now all return an error code from the Pipe_Stream_RW_ErrorCodes_t enum
193 * - Added SubErrorCode parameter to the USB_DeviceEnumerationFailed event
194 * - VBUS drop interrupt now disabled during the manual-to-auto VBUS delivery handoff
195 * - Simplified low level backend so that device/host mode initialization uses the same code paths
196 * - Added workaround for faulty Mass Storage devices which do not implement the required GET_MAX_LUN request
197 * - Removed buggy Telnet application from the RNDIS demo
198 * - Moved Mass Storage class requests in the Mass Storage Host demo to wrapper functions in MassStoreCommands.c
199 * - Fixed incorrect SCSI command size value in the Request Sense command in MassStoreCommands.c
200 * - Added SetProtocol request to HID class non-parser Mouse and Keyboard demos to force devices to use the correct Boot Protocol
201 * - Added new "dfu" and "flip" programming targets to project makefiles
202 * - HID_PARSE_Sucessful enum member typo corrected to HID_PARSE_Successful
203 * - Changed COLLECTION item structures in the HID descriptor parser to include the collection's Usage Page value
204 * - Serial driver now sets Tx line as output, enables pullup on Rx line
205 * - Fixed smaller USB AVRs raising multiple connection and disconnection events when NO_LIMITED_CONTROLLER_CONNECT is disabled
206 * - Added HOST_DEVICE_SETTLE_DELAY_MS to give the host delay after a device is connected before it is enumerated
207 * - Fixed KeyboardHostWithParser demo linking against the wrong global variables
208 * - Completed doxygen documentation of remaining library bootloaders, demos and projects
209 * - Fixed incorrect bootloader start address in the TeensyHID bootloader
210 * - Added HWB button whole-disk ASCII dump functionality to MassStoreHost demo
211 * - Replaced printf_P(PSTR("%c"), {Variable}) calls with putchar(<Variable>) for speed and size savings
212 * - Serial driver now accepts baud rates over 16-bits in size, added double speed flag option
213 * - Fixed incorrect callback abort return value in Pipe.c
214 * - Added new flip-ee and dfu-ee makefile targets (courtesy of Opendous Inc.)
215 * - Removed reboot-on-disconnect code from the TeensyHID bootloader, caused problems on some systems
216 * - Fixed AudioOutput and AudioInput demos looping on the endpoint data, rather than processing a sample at a time and returning
217 * each time the task runs to allow for other tasks to execute
218 * - Added support for the Atmel ATAVRUSBRF01 board
219 * - Added AVRISP Programmer Project, courtesy of Opendous Inc.
220 * - Fixed CDC Host demo not searching through both CDC interfaces for endpoints
221 * - Fixed incorrect Product String descriptor length in the DFU class bootloader
222 *
223 *
224 * \section Sec_ChangeLog081224 Version 081224
225 *
226 * - MyUSB name changed to LUFA, the Lightweight USB Framework for AVRs
227 * - Fixed Mass Storage Host demo's MassStore_SendCommand() delay in the incorrect place
228 * - Fixed USBtoSerial demo not calling ReconfigureUSART() after a change in the line encoding
229 * - Fixed infinite loop in host mode Host-to-Device control transfers with data stages
230 * - HID report parser now supports devices with multiple reports in one interface via Report IDs
231 * - Fixed RZUSBSTICK board LED driver header incorrect macro definition order causing compile errors
232 * - Calling USB_Init() when the USB interface is already configured now forces a complete interface reset
233 * and re-enumeration - fixes MyUSB DFU bootloader not switching to app code correctly when soft reset used
234 * - Fixed "No newline at end of file" warning when stream callbacks are enabled
235 * - DFU bootloader now uses fixed signature bytes per device, rather than reading them out dynamically for size
236 * - Added new FIXED_CONTROL_ENDPOINT_SIZE and USE_SINGLE_DEVICE_CONFIGURATION switches to statically define certain values to
237 * reduce compiled binary size
238 * - Added new NO_LIMITED_CONTROLLER_CONNECT switch to prevent the library from trying to determine bus connection
239 * state from the suspension and wake up events on the smaller USB AVRs
240 * - Added summary of all library compile time tokens to the documentation
241 * - Added overview of the LUFA scheduler to the documentation
242 * - Removed MANUAL_PLL_CONTROL compile time token, replaced with a mask for the USB_Init() Options parameter
243 * - CDC bootloader now uses the correct non-far or far versions of the pgm_* functions depending on if RAMPZ is defined
244 * - Doxygen documentation now contains documentation on all the projects, bootloaders and most demos included with the library
245 * - CDC bootloader now runs user application when USB disconnected rather than waiting for a hard reset
246 * - MouseHostWithParser and KeyboardHostWithParser now support multiple-report devices
247 * - RNDIS demo can now close connections correctly using the new TCP_APP_CLOSECONNECTION() macro - used in Webserver
248 * - Fixed the DFU bootloader, no longer freezes up when certain files are programmed into an AVR, made reading/writing faster
249 * - Fixed mouse/joystick up/down movements reversed - HID mouse X/Y coordinates use a left-handed coordinate system, not a normal
250 * right-handed system
251 * - Added stub code to the CDC and USBtoSerial demos showing how to read and set the RS-232 handshake lines - not currently used in
252 * the demos, but the example code and supporting defines are now in place
253 * - Interrupts are now disabled when processing a control request in device mode, to avoid exceeding the strict control request
254 * timing requirements.
255 * - All demos now use a central StatusUpdate() function rather than direct calls to the board LED functions, so that the demos can
256 * easily be altered to show different LED combinations (or do something else entirely) as the demo's status changes
257 * - Removed LED commands from the CDC bootloader, unused by most AVR910 programming software
258 * - Fixed RNDIS demo ICMP ping requests echoing back incorrect data
259 * - Added DHCP server code to RNDIS demo, allowing for hands-free auto configuration on any PC
260 * - Fixed DFU bootloader PID value for the ATMEGA16U4 AVR
261 * - Endpoint and Pipe configuration functions now return an error code indicating success or failure
262 * - USB Reset in device mode now resets and disables all device endpoints
263 * - Added intermediate states to the host mode state machine, reducing the USB task blocking time to no more than 1ms explicitly per
264 * invocation when in host mode
265 * - Added support for the ATMEGA32U6 microcontroller
266 * - Added STATIC_ENDPOINT_CONFIGURATION compile time option, enabled in the bootloaders to minimize space usage
267 * - Removed redundant code from the USB device GetStatus() chapter 9 processing routine
268 * - Added new TeensyHID bootloader, compatible with the Teensy HID protocol (http://www.pjrc.com/teensy/)
269 * - Versions are now numbered by release dates, rather than arbitrary major/minor revision numbers
270 * - USB_RemoteWakeupEnabled is now correctly set and cleared by SetFeature and ClearFeature requests from the host
271 * - Changed prototype of GetDescriptor, so that it now returns the descriptor size (or zero if the descriptor doesn't exist)
272 * rather than passing the size back to the caller through a parameter and returning a boolean
273 *
274 *
275 * \section Sec_ChangeLog153 Version 1.5.3 - Released 2nd October, 2008
276 *
277 * - Fixed CDC bootloader using pgmspace macros for some descriptors inappropriately
278 * - Updated all Mouse and Keyboard device demos to include boot protocol support (now works in BIOS)
279 * - Renamed bootloader directories to remove spaces, which were causing build problems on several OSes
280 * - Removed serial number strings from all but the MassStore demo where it is required - users were not
281 * modifying the code to either omit the descriptor or use a unique serial per device causing problems
282 * when multiple units of the same device were plugged in at the same time
283 * - AudioOutput and AudioInput demos now correctly silence endpoints when not enabled by the host
284 * - Added KeyboardMouse demo (Keyboard and Mouse functionality combined into a single demo)
285 * - Added DriverStubs directory to house board level driver templates, to make MyUSB compatible custom board
286 * driver creation easier
287 * - Extended MassStorage demo to support multiple LUNs, 2 by default
288 * - Fixed incorrect device address mask, preventing the device from enumerating with addresses larger than 63
289 * - Fixed incorrect data direction mask in the GetStatus standard request, preventing it from being handled
290 * - Fixed incorrect GetStatus standard request for endpoints, now returns the endpoint STALL status correctly
291 * - Added in new USB_RemoteWakeupEnabled and USB_CurrentlySelfPowered flags rather than using fixed values
292 * - Added DualCDC demo to demonstrate the use of Interface Association Descriptors
293 * - Added pipe NAK detection and clearing API
294 * - Added pipe status change (NAK, STALL, etc.) interrupt API
295 * - Fixed MassStorageHost demo so that it no longer freezes randomly when issuing several commands in a row
296 * - Host demos configuration descriptor routines now return a unique error code when the returned data does
297 * not have a valid configuration descriptor header
298 * - Added Endpoint_WaitUntilReady() and Pipe_WaitUntilReady() functions
299 * - Stream functions now have software timeouts, timeout period can be set by the USB_STREAM_TIMEOUT_MS token
300 * - All demos now pass the USB.org automated Chapter 9 device compliance tests
301 * - All HID demos now pass the USB.org automated HID compliance tests
302 * - Polling interval of the interrupt endpoint in the CDC based demos changed to 0xFF to fix problems on Linux systems
303 * - Changed stream functions to accept a new callback function, with NO_STREAM_CALLBACKS used to disable all callbacks
304 * - Mass Storage demo dataflash management routines changed to use the endpoint stream functions
305 * - Added AVRStudio project files for each demo in addition to the existing Programmer's Notepad master project file
306 * - Re-added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
307 * are reflected in the hardware (change was previously lost)
308 *
309 *
310 * \section Sec_ChangeLog152 Version 1.5.2 - Released 31st July, 2008
311 *
312 * - Fixed SwapEndian_32() function in Common.h so that it now works correctly (wrong parameter types)
313 * - Updated RNDIS demo - notification endpoint is no longer blocking so that it works with faulty Linux RNDIS
314 * implementations (where the notification endpoint is ignored in favour of polling the control endpoint)
315 * - Fixed incorrect Vendor Description string return size in RNDIS demo for the OID_GEN_VENDOR_DESCRIPTION OID token
316 * - Added very basic TCP/IP stack and HTTP/TELNET servers to RNDIS demo
317 * - Fixed DFU bootloader exit causing programming software to complain about failed writes
318 * - Fixed DFU bootloader EEPROM programming mode wiping first flash page
319 * - Fixed Clear/Set Feature device standard request processing code (fixing MassStorage demo in the process)
320 * - Added support for the ATMEGA16U4 AVR microcontroller
321 * - Library licence changed from LGPLv3 to MIT license
322 *
323 *
324 * \section Sec_ChangeLog151 Version 1.5.1 - Released 31st July, 2008
325 *
326 * - Changed host demos to enable the host function task on the firing of the USB_DeviceEnumerationComplete event
327 * rather than the USB_DeviceAttached event
328 * - HID Usage Stack now forcefully cleared after an IN/OUT/FEATURE item has been completely processed to remove
329 * any referenced but not created usages
330 * - Changed USB_INT_DisableAllInterrupts() and USB_INT_ClearAllInterrupts(), USB_Host_GetNextDescriptorOfType(),
331 * USB_Host_GetNextDescriptorOfTypeBefore(), USB_Host_GetNextDescriptorOfTypeAfter() to normal functions (from inline)
332 * - Fixed USBtoSerial demo not sending data, only receiving
333 * - Fixed main makefile to make all by default, fixed MagStripe directory case to prevent case-sensitive path problems
334 * - ConfigDescriptor functions made normal, instead of static inline
335 * - Pipe/Endpoint *_Ignore_* functions changed to *_Discard_*, old names still present as aliases
336 * - Fixed ENDPOINT_MAX_SIZE define to be correct on limited USB controller AVRs
337 * - Changed endpoint and pipe size translation routines to use previous IF/ELSE IF cascade code, new algorithmic
338 * approach was buggy and caused problems
339 * - Bootloaders now compile with -fno-inline-small-functions option to reduce code size
340 * - Audio demos now use correct endpoint sizes for full and limited controller USB AVRs, double banking in all cases
341 * to be in line with the specification (isochronous endpoints MUST be double banked)
342 * - Added Interface Association descriptor to StdDescriptors.h, based on the relevant USB2.0 ECN
343 * - Fixed MIDI demo, corrected Audio Streaming descriptor to follow the MIDI-specific AS structure
344 * - Fixed HID class demo descriptors so that the HID interface's protocol is 0x00 (required for non-boot protocol HID
345 * devices) to prevent problems on hosts expecting the boot protocol functions to be supported
346 * - Added read/write control stream functions to Endpoint.h
347 * - Fixed AudioOut demo not setting port pins to inputs on USB disconnect properly
348 * - Added RNDISEthernet demo application
349 *
350 *
351 * \section Sec_ChangeLog150 Version 1.5.0 - Released 10 June, 2008
352 *
353 * - Fixed MIDI demo, now correctly waits for the endpoint to be ready between multiple note messages
354 * - Added CDC Host demo application
355 * - Added KeyboardFullInt demo application
356 * - Endpoint and Pipe creation routines now mask endpoint/pipe size with the size mask, to remove transaction
357 * size bits not required for the routines (improves compatibility with devices)
358 * - Fixed AudioInput demo - now correctly sends sampled audio to the host PC
359 * - Fixed AudioOutput demo once more -- apparently Windows requires endpoint packets to be >=192 bytes
360 * - Shrunk round-robbin scheduler code slightly via the use of struct pointers rather than array indexes
361 * - Fixed off-by-one error when determining if the Usage Stack is full inside the HID Report parser
362 * - Renamed Magstripe.h to MagstripeHW.h and moved driver out of the library and into the MagStripe demo folder
363 * - Added preprocessor checks to enable C linkage on the library components when used with a C++ compiler
364 * - Added Still Image Host demo application
365 * - The USB device task now restores the previously selected endpoint, allowing control requests to be transparently
366 * handled via interrupts while other endpoints are serviced through polling
367 * - Fixed device signature being sent in reverse order in the CDC bootloader
368 * - Host demos now have a separate ConfigDescriptor.c/.h file for configuration descriptor processing
369 * - HostWithParser demos now have a separate HIDReport.c/.h file for HID report processing and dumping
370 * - Removed non-mandatory commands from MassStorage demo to save space, fixed SENSE ResponseCode value
371 * - CDC demos now send empty packets after sending a full one to prevent buffering issues on the host
372 * - Updated demo descriptors to use VID/PID values donated by Atmel
373 * - Added DoxyGen documentation to the source files
374 * - Fixed Serial_IsCharRecieved() definition, was previously reversed
375 * - Removed separate USB_Descriptor_Language_t descriptor, USB_Descriptor_String_t is used instead
376 * - Removed unused Device Qualifier descriptor structure
377 * - Renamed the USB_CreateEndpoints event to the more appropriate USB_ConfigurationChanged
378 * - Fixed MassStorageHost demo reading in the block data in reverse
379 * - Removed outdated typedefs in StdRequestType.h, superseded by the macro masks
380 * - Corrected OTG.h is now included when the AVR supports both Host and Device modes, for creating OTG products
381 * - USB_DeviceEnumerationComplete event is now also fired when in device mode and the host has finished its enumeration
382 * - Interrupt driven demos now properly restore previously selected endpoint when ISR is complete
383 * - USB_HOST_TIMEOUT_MS is now overridable in the user project makefile to a custom fixed timeout value
384 * - Renamed USB_Host_SOFGeneration_* macros to more friendly USB_Host_SuspendBus(), USB_Host_ResumeBus()
385 * and USB_Host_IsBusSuspended()
386 * - Renamed *_*_Is* macros to *_Is* to make all flag checking macros consistent, Pipe_SetInterruptFreq() is now
387 * Pipe_SetInterruptPeriod() to use the correct terminology
388 * - UnicodeString member of USB_Descriptor_String_t struct changed to an ordinary int array type, so that the GCC
389 * Unicode strings (prefixed with an L before the opening quotation mark) can be used instead of explicit arrays
390 * of ASCII characters
391 * - Fixed Endpoint/Pipes being configured incorrectly if the maximum endpoint/pipe size for the selected USB AVR
392 * model was given as the bank size
393 * - HID device demos now use a true raw array for the HID report descriptor rather than a struct wrapped array
394 * - Added VERSION_BCD() macro, fixed reported HID and USB version numbers in demo descriptors
395 * - Cleaned up GetDescriptor device chapter 9 handler function
396 * - Added GET_REPORT class specific request to HID demos to make them complaint to the HID class
397 * - Cleaned up setting of USB_IsInitialized and USB_IsConnected values to only when needed
398 * - Removed Atomic.c and ISRMacro.h; the library was already only compatible with recent avr-lib-c for other reasons
399 * - All demos and library functions now use USB standardized names for the USB data (bRequest, wLength, etc.)
400 * - Added USE_NONSTANDARD_DESCRIPTOR_NAMES token to switch back to the non-standard descriptor element names
401 *
402 *
403 * \section Sec_ChangeLog141 Version 1.4.1 - Released 5 May, 2008
404 *
405 * - Enhanced KeyboardWithParser demo, now prints out pressed alphanumeric characters like the standard demo
406 * - Fixed MassStorage demo, read/writes using non mode-10 commands now work correctly
407 * - Corrected version number in Version.h
408 *
409 *
410 * \section Sec_ChangeLog140 Version 1.4.0 - Released 5 May, 2008
411 *
412 * - Added HID Report Parser API to the library
413 * - Added Mouse and Keyboard host demo applications, using the new HID report parser engine
414 * - Added MouseFullInt demo, which demonstrates a fully interrupt (including control requests) mouse device
415 * - Fixed incorrect length value in the audio control descriptor of the AudioOutput and AudioInput demos
416 * - Added MIDI device demo application to the library
417 * - Fixed problem preventing USB devices from being resumed from a suspended state
418 * - Added new CDC class bootloader to the library, based on the AVR109 bootloader protocol
419 * - Added header to each demo application indicating the mode, class, subclass, standards used and supported speed
420 * - Functions expecting endpoint/pipe numbers are no longer automatically masked against ENDPOINT_EPNUM_MASK or
421 * PIPE_PIPENUM_MASK - this should be manually added to code which requires it
422 * - Fixed DFU class bootloader - corrected frequency of flash page writes, greatly reducing programming time
423 * - Renamed AVR_HOST_GetDeviceConfigDescriptor() to USB_Host_GetDeviceConfigDescriptor() and AVR_HOST_GetNextDescriptor()
424 * to USB_Host_GetNextDescriptor()
425 * - Added new USB_Host_GetNextDescriptorOfTypeBefore() and USB_Host_GetNextDescriptorOfTypeAfter() routines
426 * - Moved configuration descriptor routines to MyUSB/Drivers/USB/Class/, new accompanying ConfigDescriptors.c file
427 * - Added new configuration descriptor comparator API for more powerful descriptor parsing, updated host demos to use the
428 * new comparator API
429 * - Fixed MassStorageHost demo capacity printout, and changed data read/write mode from little-endian to the correct
430 * big-endian for SCSI devices
431 * - Fixed macro/function naming consistency; USB_HOST is now USB_Host, USB_DEV is now USB_Device
432 * - Added better error reporting to host demos
433 * - Added 10 microsecond delay after addressing devices in host mode, to prevent control stalls
434 *
435 *
436 * \section Sec_ChangeLog132 Version 1.3.2 - Released April 1st, 2008
437 *
438 * - Added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
439 * are reflected in the hardware
440 * - Fixed CDC and USBtoSerial demos - Stream commands do not work for control endpoints, and the
441 * GetLineCoding request had an incorrect RequestType mask preventing it from being processed
442 * - Improved reliability of the USBtoSerial demo, adding a busy wait while the buffer is full
443 * - Device control endpoint size is now determined from the device's descriptors rather than being fixed
444 * - Separated out SPI code into new SPI driver in AT90USBXXX driver directory
445 * - Bootloader now returns correct PID for the selected USB AVR model, not just the AT90USB128X PID
446 * - Added support for the RZUSBSTICK board
447 * - Bicolour driver removed in favour of generic LEDs driver
448 * - Added support for the ATMEGA32U4 AVR
449 * - Added MANUAL_PLL_CONTROL compile time option to prevent the USB library from manipulating the PLL
450 *
451 *
452 * \section Sec_ChangeLog131 Version 1.3.1 - Released March 19th 2008
453 *
454 * - Fixed USB to Serial demo - class value in the descriptors was incorrect
455 * - Control endpoint size changed from 64 bytes to 8 bytes to save on USB FIFO RAM and to allow low
456 * speed mode devices to enumerate properly
457 * - USB to Serial demo data endpoints changed to dual-banked 16 byte to allow the demo to work
458 * on USB AVRs with limited USB FIFO RAM
459 * - Changed demo endpoint numbers to use endpoints 3 and 4 for double banking, to allow limited
460 * USB device controller AVRs (AT90USB162, AT90USB82) to function correctly
461 * - Updated Audio Out demo to use timer 1 for AVRs lacking a timer 3 for the PWM output
462 * - Fixed incorrect USB_DEV_OPT_HIGHSPEED entry in the Mass Storage device demo makefile
463 * - Optimized Mass Storage demo for a little extra transfer speed
464 * - Added LED indicators to the Keyboard demo for Caps Lock, Num Lock and Scroll Lock
465 * - Added Endpoint_Read_Stream, Endpoint_Write_Stream, Pipe_Read_Stream and Pipe_Write_Stream functions
466 * (including Big and Little Endian variants)
467 * - Made Dataflash functions inline for speed, removed now empty Dataflash.c driver file
468 * - Added new SetSystemClockPrescaler() macro (thanks to Joerg Wunsch)
469 * - Fixed Endpoint_ClearStall() to function correctly on full USB controller AVRs (AT90USBXXX6/7)
470 * - Endpoint_Setup_In_Clear() and Endpoint_Setup_Out_Clear() no longer set FIFOCON, in line with the
471 * directives in the datasheet
472 * - Fixed PLL prescaler defines for all AVR models and frequencies
473 * - Fixed ENDPOINT_INT_IN and ENDPOINT_INT_OUT definitions
474 * - Added interrupt driven keyboard and mouse device demos
475 * - Combined USB_Device_ClearFeature and USB_Device_SetFeature requests into a single routine for code
476 * size savings
477 * - Added missing Pipe_GetCurrentPipe() macro to Pipe.h
478 *
479 *
480 * \section Sec_ChangeLog130 Version 1.3.0 - Released March 7th 2008
481 *
482 * - Unnecessary control endpoint config removed from device mode
483 * - Fixed device standard request interpreter accidentally processing some class-specific requests
484 * - Added USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS compile time options to instruct the library
485 * to use descriptors stored in RAM or EEPROM rather than flash memory
486 * - All demos now disable watchdog on startup, in case it has been enabled by fuses or the bootloader
487 * - USB_DEV_OPT_LOWSPEED option now works correctly
488 * - Added ability to set the USB options statically for a binary size reduction via the USE_STATIC_OPTIONS
489 * compile time define
490 * - USB_Init no longer takes a Mode parameter if compiled for a USB device with no host mode option, or
491 * if forced to a particular mode via the USB_HOST_ONLY or USB_DEVICE_ONLY compile time options
492 * - USB_Init no longer takes an Options parameter if options statically configured by USE_STATIC_OPTIONS
493 * - Endpoint_Ignore_* and Pipe_Ignore_* made smaller by making the dummy variable non-volatile so that the
494 * compiler can throw away the result more efficiently
495 * - Added in an optional GroupID value to each scheduler entry, so that groups of tasks can once again be
496 * controlled by the new Scheduler_SetGroupTaskMode() routine
497 * - Added support for AT90USB162 and AT90USB82 AVR models
498 * - Added support for the STK525 and STK526 boards
499 * - Added support for custom board drivers to be supplied by selecting the board type as BOARD_USER, and
500 * placing board drivers in {Application Directory}/Board/
501 * - PLL is now stopped and USB clock is frozen when detached from host in device mode, to save power
502 * - Joystick defines are now in synch with the schematics - orientation will be rotated for the USBKEY
503 * - Fixed USB_DEV_IsUSBSuspended() - now checks the correct register
504 * - Fixed data transfers to devices when in host mode
505 * - Renamed USB_DEV_OPT_HIGHSPEED to USB_DEV_OPT_FULLSPEED and USB_HOST_IsDeviceHighSpeed() to
506 * USB_HOST_IsDeviceFullSpeed() to be in line with the official USB speed names (to avoid confusion with
507 * the real high speed mode, which is unavailable on the USB AVRs)
508 *
509 *
510 * \section Sec_ChangeLog120 Version 1.2.0 - Released February 4th, 2008
511 *
512 * - Added USB_DeviceEnumerationComplete event for host mode
513 * - Added new Scheduler_Init routine to preprepare the scheduler, so that tasks can be started and
514 * stopped before the scheduler has been started (via Scheduler_Start)
515 * - Connection events in both Device and Host mode are now interrupt-driven, allowing the USB management
516 * task to be stopped when the USB is not connected to a host or device
517 * - All demos updated to stop the USB task when not in use via the appropriate USB events
518 * - Mass Storage Host demo application updated to function correctly with all USB flash disks
519 * - Mass Storage Host demo application now prints out the capacity and number of LUNs in the attached
520 * device, and prints the first block as hexadecimal numbers rather than ASCII characters
521 * - Endpoint and Pipe clearing routines now clear the Endpoint/Pipe interrupt and status flags
522 * - Shifted error handling code in the host enum state machine to a single block, to reduce code complexity
523 * - Added in DESCRIPTOR_TYPE, DESCRIPTOR_SIZE and DESCRIPTOR_CAST macros to make config descriptor processing
524 * clearer in USB hosts and DESCRIPTOR_ADDRESS for convenience in USB devices
525 * - Added in alloca macro to common.h, in case the user is using an old version of avr-lib-c missing the macro
526 *
527 *
528 * \section Sec_ChangeLog130 Version 1.1.0 - Released January 25th 2008
529 *
530 * - Fixed DCONNI interrupt being enabled accidentally after a USB reset
531 * - Fixed DDISCI interrupt not being disabled when a device is not connected
532 * - Added workaround for powerless pullup devices causing false disconnect interrupts
533 * - Added USB_DeviceEnumerationFailed event for Host mode
534 * - AVR_HOST_GetDeviceConfigDescriptor routine no longer modifies ConfigSizePtr if a valid buffer
535 * pointer is passed
536 * - Added ALLOCABLE_BYTES to DynAlloc, and added code to make the size of key storage variables
537 * dependant on size of memory parameters passed in via the user project's makefile
538 * - Fixed incorrect device reset routine being called in USBTask
539 * - Devices which do not connect within the standard 300mS are now supported
540 * - Removed incorrect ATTR_PURE from Scheduler_SetTaskMode(), which was preventing tasks from being
541 * started/stopped, as well as USB_InitTaskPointer(), which was breaking dual device/host USB projects
542 * - Changed scheduler to use the task name rather than IDs for setting the task mode, eliminating the
543 * need to have a task ID list
544 * - ID transistion interrupt now raises the appropriate device/host disconnect event if device attached
545 * - Fixed double VBUS change (and VBUS -) event when detatching in device mode
546 * - Added ability to disable ANSI terminal codes by the defining of DISABLE_TERMINAL_CODES in makefile
547 * - Removed return from ConfigurePipe and ConfigureEndpoint functions - use Pipe_IsConfigured() and
548 * Endpoint_IsConfigured() after calling the config functions to determine success
549 */