Dwayne Dilbeck / USBDevice

Forked to make modifications to bring the USBHID into USB compliance and add additional features.

Dependents:   HW4_AudioControl

Fork of USBDevice by mbed official

As of Revision 18 everything in the USBHID specification is now implemented, except Multi-reports.

Revision comments for changelist 18

USBHID.cpp

• Added SET_PROTOCOL support
• Added GET_PROTOCOL support
• protocolSate is set to 1 by default to match USB HID specification. This variable should be checked to determine which format theinput report should have. 1 - Use the user specified report format. 0 - Use the BOOT protocol report format.

Revision comments for changelist 16

• HID_REPORT transformed from structure to class. This was done for several reasons.

1. When multiple reports are used the 64 byte size for every report becomes a problem.
2. The length value should always remain the same for a report, Make the constructor set the vale at the same time it allocates memory for the DATA area.

• By default the data will be an array of MAX_HID_REPORT_SIZE like the structure,
• When given a length argument, the hid_report.length will be set, and hid_report.data will be an array of the size given.
• Length zero causes data to be NULL
• Mostly backwards compatible. The definition of a destructor caused a compiler error in USBMouse::update and USBMousekeyboard::update. This error was caused by instatiation of HID_REPORT in the middle of an IF logic statement. These files have been modified. The error complained that the logic skipped object initialization. The HID_REPORT has been moved to the class definition. Since both ABSOLUTE and RELATIVE modes used the HID_REPORT, this seems to make more sense. Previously the hid_report would be instatiated in <class>::mousesend and <class>::update.

Revision comments for changelist 14

USBdevice.cpp

• Modified USB device state to change from Configure when disconnect is called.
• Modified the call back function for when the suspend state changes. This should be used to turn off peripherals to conserve power.

Revision comments for changelist 13

USBdevice.cpp

• ) Changed DEBUG messages to be more descriptive for string descriptor
• ) Bug fix: Control Transfers did not actually transfer the data from Buffer to transfer->ptr

USBHIDTypes.h

• ) Added ALL CLASS request to KEYWORD list
• ) Added KEYWORDS for report type

USBHID.h

• ) Added a new constructor to specify size of feature report
• ) Added HID_REPORT inputReport and featureReport
• ) Added data structures to support IDLE rate
• ) Added data structures to support callback functions

USBHID.cpp

• ) Changed constructor to initialize new feature data structures
• ) Implemented Set_IDLE/GET_IDLE and the periodic resend of non-changed data
• ) Implemented HID specification required control transfer GET_REPORT
• ) Fixed issue where Intreput transfers and control transfers did not access the same data structures.
• ) Implemented Feature reports
• ) Implemented Callback Hooks for get_report/set_report actions.
• ) Added callback hooks for interupt actions in the new functions.
• ) interupt transfer can now write to outputReport
• ) Modified SET_REPORT code to function for multiple types.
• ) Refactored some code in preperation to add multi report support

Default ProtocolState was incorrectly being set to 0:Boot when the HID specification states that the default should be 1:Report