Add svn:eol-style property to source files, so that the line endings are correctly...
[pub/USBasp.git] / LUFA / Drivers / USB / Class / Device / HID.h
index 9275124..ac6ee4c 100644 (file)
-/*\r
-             LUFA Library\r
-     Copyright (C) Dean Camera, 2010.\r
-              \r
-  dean [at] fourwalledcubicle [dot] com\r
-      www.fourwalledcubicle.com\r
-*/\r
-\r
-/*\r
-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, distribute, and sell this \r
-  software and its documentation for any purpose is hereby granted\r
-  without fee, provided that the above copyright notice appear in \r
-  all copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting \r
-  documentation, and that the name of the author not be used in \r
-  advertising or publicity pertaining to distribution of the \r
-  software without specific, written prior permission.\r
-\r
-  The author disclaim all warranties with regard to this\r
-  software, including all implied warranties of merchantability\r
-  and fitness.  In no event shall the author be liable for any\r
-  special, indirect or consequential damages or any damages\r
-  whatsoever resulting from loss of use, data or profits, whether\r
-  in an action of contract, negligence or other tortious action,\r
-  arising out of or in connection with the use or performance of\r
-  this software.\r
-*/\r
-\r
-/** \file\r
- *  \brief Device mode driver for the library USB HID Class driver.\r
- *\r
- *  Device mode driver for the library USB HID Class driver.\r
- *\r
- *  \note This file should not be included directly. It is automatically included as needed by the class driver\r
- *        dispatch header located in LUFA/Drivers/USB/Class/HID.h.\r
- */\r
-\r
-/** \ingroup Group_USBClassHID\r
- *  @defgroup Group_USBClassHIDDevice HID Class Device Mode Driver\r
- *\r
- *  \section Sec_Dependencies Module Source Dependencies\r
- *  The following files must be built with any user project that uses this module:\r
- *    - LUFA/Drivers/USB/Class/Device/HID.c\r
- *\r
- *  \section Module Description\r
- *  Device Mode USB Class driver framework interface, for the HID USB Class driver.\r
- *\r
- *  @{\r
- */\r
\r
-#ifndef _HID_CLASS_DEVICE_H_\r
-#define _HID_CLASS_DEVICE_H_\r
-\r
-       /* Includes: */\r
-               #include "../../USB.h"\r
-               #include "../Common/HID.h"\r
-\r
-               #include <string.h>\r
-\r
-       /* Enable C linkage for C++ Compilers: */\r
-               #if defined(__cplusplus)\r
-                       extern "C" {\r
-               #endif\r
-\r
-       /* Preprocessor Checks: */\r
-               #if !defined(__INCLUDE_FROM_HID_DRIVER)\r
-                       #error Do not include this file directly. Include LUFA/Drivers/Class/HID.h instead.\r
-               #endif\r
-\r
-       /* Public Interface - May be used in end-application: */\r
-               /* Type Defines: */\r
-                       /** \brief HID Class Device Mode Configuration and State Structure.\r
-                        *\r
-                        *  Class state structure. An instance of this structure should be made for each HID interface\r
-                        *  within the user application, and passed to each of the HID class driver functions as the\r
-                        *  HIDInterfaceInfo parameter. This stores each HID interface's configuration and state information.\r
-                        *\r
-                        *  \note Due to technical limitations, the HID device class driver does not utilize a separate OUT\r
-                        *        endpoint for host->device communications. Instead, the host->device data (if any) is sent to\r
-                        *        the device via the control endpoint.\r
-                        */\r
-                       typedef struct\r
-                       {\r
-                               const struct\r
-                               {\r
-                                       uint8_t  InterfaceNumber; /**< Interface number of the HID interface within the device */\r
-\r
-                                       uint8_t  ReportINEndpointNumber; /**< Endpoint number of the HID interface's IN report endpoint */\r
-                                       uint16_t ReportINEndpointSize; /**< Size in bytes of the HID interface's IN report endpoint */                                  \r
-                                       bool     ReportINEndpointDoubleBank; /** Indicates if the HID interface's IN report endpoint should use double banking */\r
-                                       \r
-                                       void*    PrevReportINBuffer; /**< Pointer to a buffer where the previously created HID input report can be\r
-                                                                     *  stored by the driver, for comparison purposes to detect report changes that\r
-                                                                     *  must be sent immediately to the host. This should point to a buffer big enough\r
-                                                                     *  to hold the largest HID input report sent from the HID interface. If this is set\r
-                                                                                                 *  to NULL, it is up to the user to force transfers when needed in the \r
-                                                                                                 *  \ref CALLBACK_HID_Device_CreateHIDReport() callback function.\r
-                                                                                                 *\r
-                                                                                                 *  \note Due to the single buffer, the internal driver can only correctly compare\r
-                                                                                                 *        subsequent reports with identical report IDs. In multiple report devices,\r
-                                                                                                 *        this buffer should be set to NULL and the decision to send reports made\r
-                                                                                                 *        by the user application instead.\r
-                                                                     */\r
-                                       uint8_t  PrevReportINBufferSize; /**< Size in bytes of the given input report buffer. This is used to create a\r
-                                                                         *  second buffer of the same size within the driver so that subsequent reports\r
-                                                                         *  can be compared. If the user app is to determine when reports are to be sent\r
-                                                                         *  exclusively (i.e. \ref PrevReportINBuffer is NULL) this value must still be\r
-                                                                                                         *  set to the size of the largest report the device can issue to the host.\r
-                                                                         */\r
-                               } Config; /**< Config data for the USB class interface within the device. All elements in this section\r
-                                          *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.\r
-                                          */                                                                            \r
-                               struct\r
-                               {\r
-                                       bool     UsingReportProtocol; /**< Indicates if the HID interface is set to Boot or Report protocol mode */\r
-                                       uint16_t IdleCount; /**< Report idle period, in milliseconds, set by the host */\r
-                                       uint16_t IdleMSRemaining; /**< Total number of milliseconds remaining before the idle period elapsed - this \r
-                                                                                          *   should be decremented by the user application if non-zero each millisecond */    \r
-                               } State; /**< State data for the USB class interface within the device. All elements in this section\r
-                                         *   are reset to their defaults when the interface is enumerated.\r
-                                         */\r
-                       } USB_ClassInfo_HID_Device_t;\r
-       \r
-               /* Function Prototypes: */\r
-                       /** Configures the endpoints of a given HID interface, ready for use. This should be linked to the library\r
-                        *  \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration\r
-                        *  containing the given HID interface is selected.\r
-                        *\r
-                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state\r
-                        *\r
-                        *  \return Boolean true if the endpoints were successfully configured, false otherwise\r
-                        */\r
-                       bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
-                       \r
-                       /** Processes incoming control requests from the host, that are directed to the given HID class interface. This should be\r
-                        *  linked to the library \ref EVENT_USB_Device_UnhandledControlRequest() event.\r
-                        *\r
-                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state\r
-                        */             \r
-                       void HID_Device_ProcessControlRequest(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
-\r
-                       /** General management task for a given HID class interface, required for the correct operation of the interface. This should\r
-                        *  be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().\r
-                        *\r
-                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state\r
-                        */\r
-                       void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
-                       \r
-                       /** HID class driver callback for the user creation of a HID IN report. This callback may fire in response to either\r
-                        *  HID class control requests from the host, or by the normal HID endpoint polling procedure. Inside this callback the\r
-                        *  user is responsible for the creation of the next HID input report to be sent to the host.\r
-                        *\r
-                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state\r
-                        *  \param[in,out] ReportID  If preset to a non-zero value, this is the report ID being requested by the host. If zero, this should\r
-                        *                 be set to the report ID of the generated HID input report (if any). If multiple reports are not sent via the\r
-                        *                 given HID interface, this parameter should be ignored.\r
-                        *  \param[in] ReportType  Type of HID report to generate, either \ref REPORT_ITEM_TYPE_In or \ref REPORT_ITEM_TYPE_Feature\r
-                        *  \param[out] ReportData  Pointer to a buffer where the generated HID report should be stored\r
-                        *  \param[out] ReportSize  Number of bytes in the generated input report, or zero if no report is to be sent\r
-                        *\r
-                        *  \return Boolean true to force the sending of the report even if it is identical to the previous report and still within\r
-                        *          the idle period (useful for devices which report relative movement), false otherwise\r
-                        */\r
-                       bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,\r
-                                                     const uint8_t ReportType, void* ReportData, uint16_t* ReportSize) ATTR_NON_NULL_PTR_ARG(1)\r
-                                                                ATTR_NON_NULL_PTR_ARG(2) ATTR_NON_NULL_PTR_ARG(4) ATTR_NON_NULL_PTR_ARG(5);\r
-                       \r
-                       /** HID class driver callback for the user processing of a received HID OUT report. This callback may fire in response to\r
-                        *  either HID class control requests from the host, or by the normal HID endpoint polling procedure. Inside this callback\r
-                        *  the user is responsible for the processing of the received HID output report from the host.\r
-                        *\r
-                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state\r
-                        *  \param[in] ReportID  Report ID of the received output report. If multiple reports are not received via the given HID\r
-                        *                   interface, this parameter should be ignored.\r
-                        *  \param[in] ReportData  Pointer to a buffer where the received HID report is stored.\r
-                        *  \param[in] ReportSize  Size in bytes of the received report from the host.\r
-                        */\r
-                       void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, const uint8_t ReportID,\r
-                                                                 const void* ReportData, const uint16_t ReportSize) ATTR_NON_NULL_PTR_ARG(1)\r
-                                                                 ATTR_NON_NULL_PTR_ARG(3);\r
-\r
-               /* Inline Functions: */\r
-                       /** Indicates that a millisecond of idle time has elapsed on the given HID interface, and the interface's idle count should be\r
-                        *  decremented. This should be called once per millisecond so that hardware key-repeats function correctly. It is recommended\r
-                        *  that this be called by the \ref EVENT_USB_Device_StartOfFrame() event, once SOF events have been enabled via\r
-                        *  \ref USB_Device_EnableSOFEvents();.\r
-                        *\r
-                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state\r
-                        */\r
-                       static inline void HID_Device_MillisecondElapsed(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo);\r
-                       static inline void HID_Device_MillisecondElapsed(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo)\r
-                       {\r
-                               if (HIDInterfaceInfo->State.IdleMSRemaining)\r
-                                 HIDInterfaceInfo->State.IdleMSRemaining--;\r
-                       }\r
-                       \r
-       /* Disable C linkage for C++ Compilers: */\r
-               #if defined(__cplusplus)\r
-                       }\r
-               #endif\r
-               \r
-#endif\r
-\r
-/** @} */\r
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2010.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, distribute, and sell this 
+  software and its documentation for any purpose is hereby granted
+  without fee, provided that the above copyright notice appear in 
+  all copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting 
+  documentation, and that the name of the author not be used in 
+  advertising or publicity pertaining to distribution of the 
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *  \brief Device mode driver for the library USB HID Class driver.
+ *
+ *  Device mode driver for the library USB HID Class driver.
+ *
+ *  \note This file should not be included directly. It is automatically included as needed by the class driver
+ *        dispatch header located in LUFA/Drivers/USB/Class/HID.h.
+ */
+
+/** \ingroup Group_USBClassHID
+ *  @defgroup Group_USBClassHIDDevice HID Class Device Mode Driver
+ *
+ *  \section Sec_Dependencies Module Source Dependencies
+ *  The following files must be built with any user project that uses this module:
+ *    - LUFA/Drivers/USB/Class/Device/HID.c
+ *
+ *  \section Module Description
+ *  Device Mode USB Class driver framework interface, for the HID USB Class driver.
+ *
+ *  @{
+ */
+#ifndef _HID_CLASS_DEVICE_H_
+#define _HID_CLASS_DEVICE_H_
+
+       /* Includes: */
+               #include "../../USB.h"
+               #include "../Common/HID.h"
+
+               #include <string.h>
+
+       /* Enable C linkage for C++ Compilers: */
+               #if defined(__cplusplus)
+                       extern "C" {
+               #endif
+
+       /* Preprocessor Checks: */
+               #if !defined(__INCLUDE_FROM_HID_DRIVER)
+                       #error Do not include this file directly. Include LUFA/Drivers/Class/HID.h instead.
+               #endif
+
+       /* Public Interface - May be used in end-application: */
+               /* Type Defines: */
+                       /** \brief HID Class Device Mode Configuration and State Structure.
+                        *
+                        *  Class state structure. An instance of this structure should be made for each HID interface
+                        *  within the user application, and passed to each of the HID class driver functions as the
+                        *  HIDInterfaceInfo parameter. This stores each HID interface's configuration and state information.
+                        *
+                        *  \note Due to technical limitations, the HID device class driver does not utilize a separate OUT
+                        *        endpoint for host->device communications. Instead, the host->device data (if any) is sent to
+                        *        the device via the control endpoint.
+                        */
+                       typedef struct
+                       {
+                               const struct
+                               {
+                                       uint8_t  InterfaceNumber; /**< Interface number of the HID interface within the device */
+
+                                       uint8_t  ReportINEndpointNumber; /**< Endpoint number of the HID interface's IN report endpoint */
+                                       uint16_t ReportINEndpointSize; /**< Size in bytes of the HID interface's IN report endpoint */                                  
+                                       bool     ReportINEndpointDoubleBank; /** Indicates if the HID interface's IN report endpoint should use double banking */
+                                       
+                                       void*    PrevReportINBuffer; /**< Pointer to a buffer where the previously created HID input report can be
+                                                                     *  stored by the driver, for comparison purposes to detect report changes that
+                                                                     *  must be sent immediately to the host. This should point to a buffer big enough
+                                                                     *  to hold the largest HID input report sent from the HID interface. If this is set
+                                                                                                 *  to NULL, it is up to the user to force transfers when needed in the 
+                                                                                                 *  \ref CALLBACK_HID_Device_CreateHIDReport() callback function.
+                                                                                                 *
+                                                                                                 *  \note Due to the single buffer, the internal driver can only correctly compare
+                                                                                                 *        subsequent reports with identical report IDs. In multiple report devices,
+                                                                                                 *        this buffer should be set to NULL and the decision to send reports made
+                                                                                                 *        by the user application instead.
+                                                                     */
+                                       uint8_t  PrevReportINBufferSize; /**< Size in bytes of the given input report buffer. This is used to create a
+                                                                         *  second buffer of the same size within the driver so that subsequent reports
+                                                                         *  can be compared. If the user app is to determine when reports are to be sent
+                                                                         *  exclusively (i.e. \ref PrevReportINBuffer is NULL) this value must still be
+                                                                                                         *  set to the size of the largest report the device can issue to the host.
+                                                                         */
+                               } Config; /**< Config data for the USB class interface within the device. All elements in this section
+                                          *   <b>must</b> be set or the interface will fail to enumerate and operate correctly.
+                                          */                                                                            
+                               struct
+                               {
+                                       bool     UsingReportProtocol; /**< Indicates if the HID interface is set to Boot or Report protocol mode */
+                                       uint16_t IdleCount; /**< Report idle period, in milliseconds, set by the host */
+                                       uint16_t IdleMSRemaining; /**< Total number of milliseconds remaining before the idle period elapsed - this 
+                                                                                          *   should be decremented by the user application if non-zero each millisecond */    
+                               } State; /**< State data for the USB class interface within the device. All elements in this section
+                                         *   are reset to their defaults when the interface is enumerated.
+                                         */
+                       } USB_ClassInfo_HID_Device_t;
+       
+               /* Function Prototypes: */
+                       /** Configures the endpoints of a given HID interface, ready for use. This should be linked to the library
+                        *  \ref EVENT_USB_Device_ConfigurationChanged() event so that the endpoints are configured when the configuration
+                        *  containing the given HID interface is selected.
+                        *
+                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state
+                        *
+                        *  \return Boolean true if the endpoints were successfully configured, false otherwise
+                        */
+                       bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+                       
+                       /** Processes incoming control requests from the host, that are directed to the given HID class interface. This should be
+                        *  linked to the library \ref EVENT_USB_Device_UnhandledControlRequest() event.
+                        *
+                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state
+                        */             
+                       void HID_Device_ProcessControlRequest(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+                       /** General management task for a given HID class interface, required for the correct operation of the interface. This should
+                        *  be called frequently in the main program loop, before the master USB management task \ref USB_USBTask().
+                        *
+                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state
+                        */
+                       void HID_Device_USBTask(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+                       
+                       /** HID class driver callback for the user creation of a HID IN report. This callback may fire in response to either
+                        *  HID class control requests from the host, or by the normal HID endpoint polling procedure. Inside this callback the
+                        *  user is responsible for the creation of the next HID input report to be sent to the host.
+                        *
+                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state
+                        *  \param[in,out] ReportID  If preset to a non-zero value, this is the report ID being requested by the host. If zero, this should
+                        *                 be set to the report ID of the generated HID input report (if any). If multiple reports are not sent via the
+                        *                 given HID interface, this parameter should be ignored.
+                        *  \param[in] ReportType  Type of HID report to generate, either \ref REPORT_ITEM_TYPE_In or \ref REPORT_ITEM_TYPE_Feature
+                        *  \param[out] ReportData  Pointer to a buffer where the generated HID report should be stored
+                        *  \param[out] ReportSize  Number of bytes in the generated input report, or zero if no report is to be sent
+                        *
+                        *  \return Boolean true to force the sending of the report even if it is identical to the previous report and still within
+                        *          the idle period (useful for devices which report relative movement), false otherwise
+                        */
+                       bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, uint8_t* const ReportID,
+                                                     const uint8_t ReportType, void* ReportData, uint16_t* ReportSize) ATTR_NON_NULL_PTR_ARG(1)
+                                                                ATTR_NON_NULL_PTR_ARG(2) ATTR_NON_NULL_PTR_ARG(4) ATTR_NON_NULL_PTR_ARG(5);
+                       
+                       /** HID class driver callback for the user processing of a received HID OUT report. This callback may fire in response to
+                        *  either HID class control requests from the host, or by the normal HID endpoint polling procedure. Inside this callback
+                        *  the user is responsible for the processing of the received HID output report from the host.
+                        *
+                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state
+                        *  \param[in] ReportID  Report ID of the received output report. If multiple reports are not received via the given HID
+                        *                   interface, this parameter should be ignored.
+                        *  \param[in] ReportData  Pointer to a buffer where the received HID report is stored.
+                        *  \param[in] ReportSize  Size in bytes of the received report from the host.
+                        */
+                       void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo, const uint8_t ReportID,
+                                                                 const void* ReportData, const uint16_t ReportSize) ATTR_NON_NULL_PTR_ARG(1)
+                                                                 ATTR_NON_NULL_PTR_ARG(3);
+
+               /* Inline Functions: */
+                       /** Indicates that a millisecond of idle time has elapsed on the given HID interface, and the interface's idle count should be
+                        *  decremented. This should be called once per millisecond so that hardware key-repeats function correctly. It is recommended
+                        *  that this be called by the \ref EVENT_USB_Device_StartOfFrame() event, once SOF events have been enabled via
+                        *  \ref USB_Device_EnableSOFEvents();.
+                        *
+                        *  \param[in,out] HIDInterfaceInfo  Pointer to a structure containing a HID Class configuration and state
+                        */
+                       static inline void HID_Device_MillisecondElapsed(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo);
+                       static inline void HID_Device_MillisecondElapsed(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo)
+                       {
+                               if (HIDInterfaceInfo->State.IdleMSRemaining)
+                                 HIDInterfaceInfo->State.IdleMSRemaining--;
+                       }
+                       
+       /* Disable C linkage for C++ Compilers: */
+               #if defined(__cplusplus)
+                       }
+               #endif
+               
+#endif
+
+/** @} */