this software.\r
*/\r
\r
-/** \ingroup Group_USBDeviceClassDrivers\r
- * @defgroup Group_USBClassHIDDevice HID Device Class Driver - LUFA/Drivers/Class/Device/HID.h\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
- * Functions, macros, variables, enums and types related to the management of USB HID Class interfaces\r
- * within a USB device.\r
+ * Device Mode USB Class driver framework interface, for the HID USB Class driver.\r
*\r
* @{\r
*/\r
\r
-#ifndef _HID_CLASS_H_\r
-#define _HID_CLASS_H_\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
extern "C" {\r
#endif\r
\r
- /* Macros: */\r
- /** HID Class Specific Request to get the current HID report from the device. */\r
- #define REQ_GetReport 0x01\r
-\r
- /** HID Class Specific Request to get the current device idle count. */\r
- #define REQ_GetIdle 0x02\r
-\r
- /** HID Class Specific Request to set the current HID report to the device. */\r
- #define REQ_SetReport 0x09\r
-\r
- /** HID Class Specific Request to set the device's idle count. */\r
- #define REQ_SetIdle 0x0A\r
-\r
- /** HID Class Specific Request to get the current HID report protocol mode. */\r
- #define REQ_GetProtocol 0x03\r
-\r
- /** HID Class Specific Request to set the current HID report protocol mode. */\r
- #define REQ_SetProtocol 0x0B\r
-\r
- /** Descriptor header type value, to indicate a HID class HID descriptor. */\r
- #define DTYPE_HID 0x21\r
- \r
- /** Descriptor header type value, to indicate a HID class HID report descriptor. */\r
- #define DTYPE_Report 0x22\r
-\r
- /* Type Defines: */\r
- /** Type define for the HID class specific HID descriptor, to describe the HID device's specifications. Refer to the HID\r
- * specification for details on the structure elements.\r
- */\r
- typedef struct\r
- {\r
- USB_Descriptor_Header_t Header;\r
- \r
- uint16_t HIDSpec;\r
- uint8_t CountryCode;\r
- \r
- uint8_t TotalReportDescriptors;\r
-\r
- uint8_t HIDReportType;\r
- uint16_t HIDReportLength;\r
- } USB_Descriptor_HID_t;\r
-\r
- /** Type define for the data type used to store HID report descriptor elements. */\r
- typedef uint8_t USB_Descriptor_HIDReport_Datatype_t;\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. The contents of this structure should be set to their correct\r
- * values when used, or ommitted to force the library to use default values.\r
- *\r
- * Note that for the HID class driver, host-to-device reports are received via HID class requests\r
- * rather than a dedicated endpoint to simplify the driver and its interface.\r
- */\r
- typedef 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
+ /* Public Interface - May be used in end-application: */\r
+ /* Type Defines: */\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 seperate 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
+ \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.\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.\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 mS, set by the host */\r
+ uint16_t IdleMSRemaining; /**< Total number of mS remaining before the idle period elapsed - this should be\r
+ * 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 sucessfully configured, false otherwise\r
+ */\r
+ bool HID_Device_ConfigureEndpoints(USB_ClassInfo_HID_Device_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);\r
\r
- uint8_t ReportINBufferSize;\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 ms, set by the host */\r
- uint16_t IdleMSRemaining; /**< Total number of ms remaining before the idle period elapses */\r
- } USB_ClassInfo_HID_t;\r
-\r
- /* Function Prototypes: */\r
- bool USB_HID_ConfigureEndpoints(USB_ClassInfo_HID_t* HIDInterfaceInfo);\r
- void USB_HID_ProcessControlPacket(USB_ClassInfo_HID_t* HIDInterfaceInfo);\r
- void USB_HID_USBTask(USB_ClassInfo_HID_t* HIDInterfaceInfo);\r
- \r
- /** HID class driver callback for the user creation of a HID input 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 HIDInterfaceInfo Pointer to a structure containing a HID Class configuration and state.\r
- * \param 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 multiple reports are not sent via the\r
- * given HID interface, this parameter should be ignored.\r
- * \param ReportData Pointer to a buffer where the generated HID report should be stored.\r
- *\r
- * \return Number of bytes in the generated input report, or zero if no report is to be sent\r
- */\r
- uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, uint8_t* ReportID, void* ReportData);\r
-\r
- /** HID class driver callback for the user processing of a received HID input 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 HIDInterfaceInfo Pointer to a structure containing a HID Class configuration and state.\r
- * \param 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 ReportData Pointer to a buffer where the received HID report is stored.\r
- */\r
- void CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, uint8_t ReportID, void* ReportData, uint16_t ReportSize);\r
+ /** Processes incomming 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
+ /** 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
+ void HID_Device_MillisecondElapsed(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[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
+ void* ReportData, uint16_t* ReportSize) ATTR_NON_NULL_PTR_ARG(1, 2, 3, 4);\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, 3);\r
\r
/* Disable C linkage for C++ Compilers: */\r
#if defined(__cplusplus)\r
projects / pub / USBasp.git / blobdiff