diff options
Diffstat (limited to 'LUFA/Drivers/USB/Class/Host/HID.h')
| -rw-r--r-- | LUFA/Drivers/USB/Class/Host/HID.h | 59 |
1 files changed, 56 insertions, 3 deletions
diff --git a/LUFA/Drivers/USB/Class/Host/HID.h b/LUFA/Drivers/USB/Class/Host/HID.h index c1a68f819..c0f67e752 100644 --- a/LUFA/Drivers/USB/Class/Host/HID.h +++ b/LUFA/Drivers/USB/Class/Host/HID.h @@ -34,6 +34,7 @@ * \section Sec_Dependencies Module Source Dependencies
* The following files must be built with any user project that uses this module:
* - LUFA/Drivers/USB/Class/Host/HID.c
+ * - LUFA/Drivers/USB/Class/Host/HIDParser.c
*
* \section Module Description
* Host Mode USB Class driver framework interface, for the HID USB Class driver.
@@ -57,7 +58,7 @@ /* Public Interface - May be used in end-application: */
/* Macros: */
/** Error code for some HID Host functions, indicating a logical (and not hardware) error */
- #define MS_ERROR_UNSUPPORTED 0xC0
+ #define HID_ERROR_LOGICAL 0x80
/* Type Defines: */
/** Class state structure. An instance of this structure should be made within the user application,
@@ -92,7 +93,7 @@ uint16_t DataOUTPipeSize; /**< Size in bytes of the HID interface's OUT data pipe */
bool SupportsBootSubClass; /**< Indicates if the current interface instance supports the HID Boot
- * Protocol when enabled via \ref USB_HID_Host_SetProtocol()
+ * Protocol when enabled via \ref USB_HID_Host_SetBootProtocol()
*/
uint16_t HIDReportSize; /**< Size in bytes of the HID report descriptor in the device */
} State; /**< State data for the USB class interface within the device. All elements in this section
@@ -102,6 +103,7 @@ } USB_ClassInfo_HID_Host_t;
/* Enums: */
+ /** Enum for the possible error codes returned by the \ref HID_Host_ConfigurePipes() function. */
enum HIDHost_EnumerationFailure_ErrorCodes_t
{
HID_ENUMERROR_NoError = 0, /**< Configuration Descriptor was processed successfully */
@@ -112,13 +114,64 @@ };
/* Function Prototypes: */
+ /** General management task for a given Human Interface Class host 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 host configuration and state
+ */
void HID_Host_USBTask(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Host interface configuration routine, to configure a given HID host interface instance using the Configuration
+ * Descriptor read from an attached USB device. This function automatically updates the given HID Host instance's
+ * state values and configures the pipes required to communicate with the interface if it is found within the
+ * device. This should be called once after the stack has enumerated the attached device, while the host state
+ * machine is in the Addressed state.
+ *
+ * \note Once the device pipes are configured, the HID device's reporting protocol <b>must</b> be set via a call
+ * to either the \ref USB_HID_Host_SetBootProtocol() or \ref USB_HID_Host_SetReportProtocol() function.
+ *
+ * \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
+ * \param[in] ConfigDescriptorLength Length of the attached device's Configuration Descriptor
+ * \param[in] DeviceConfigDescriptor Pointer to a buffer containing the attached device's Configuration Descriptor
+ *
+ * \return A value from the \ref HIDHost_EnumerationFailure_ErrorCodes_t enum
+ */
uint8_t HID_Host_ConfigurePipes(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, uint16_t ConfigDescriptorLength,
uint8_t* DeviceConfigDescriptor) ATTR_NON_NULL_PTR_ARG(1, 3);
+ /** Determines if a report has been received on the HID interface's IN report pipe, when the device is initialized
+ * into Report Protocol mode.
+ *
+ * \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
+ *
+ * \return Boolean true if a report has been received, false otherwise
+ */
bool HID_Host_IsReportReceived(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
- uint8_t USB_HID_Host_SetProtocol(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo, bool UseReportProtocol) ATTR_NON_NULL_PTR_ARG(1);
+ /** Switches the attached HID device's reporting protocol over to the Boot Report protocol mode, on supported devices.
+ *
+ * \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
+ *
+ * \return \ref HID_ERROR_LOGICAL if the device does not support Boot Protocol mode, a value from the
+ * \ref USB_Host_SendControlErrorCodes_t enum otherwise
+ */
+ uint8_t USB_HID_Host_SetBootProtocol(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
+
+ /** Switches the attached HID device's reporting protocol over to the standard Report protocol mode. This also retrieves
+ * and parses the device's HID report descriptor, so that the size of each report can be determined in advance.
+ *
+ * \note Whether this function is used or not, the \ref CALLBACK_HIDParser_FilterHIDReportItem() callback from the HID
+ * Report Parser this function references <b>must</b> be implemented in the user code.
+ *
+ * \param[in,out] HIDInterfaceInfo Pointer to a structure containing a HID Class host configuration and state
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum if an error occurs while retrieving the HID
+ * Report descriptor or the setting of the Report protocol, \ref HID_ERROR_LOGICAL if the HID interface does
+ * not have a valid \ref HID_ReportInfo_t structure set in its configuration, a mask of \ref HID_ERROR_LOGICAL
+ * and a value from the \ref HID_Parse_ErrorCodes_t otherwise
+ */
+ uint8_t USB_HID_Host_SetReportProtocol(USB_ClassInfo_HID_Host_t* HIDInterfaceInfo) ATTR_NON_NULL_PTR_ARG(1);
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
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