+ /* Pseudo-Function Macros: */\r
+ #if defined(__DOXYGEN__)\r
+ /** Initiate a Host Negotiation Protocol request. This indicates to the other connected device\r
+ * that the device wishes to change device/host roles.\r
+ */\r
+ static inline void USB_OTG_Device_RequestHNP(void);\r
+ \r
+ /** Cancel a Host Negotiation Protocol request. This stops a pending HNP request to the other\r
+ * connected device.\r
+ */\r
+ static inline void USB_OTG_Device_CancelHNPRequest(void);\r
+ \r
+ /** Determines if the device is currently sending a HNP to an attached host.\r
+ *\r
+ * \return Boolean true if currently sending a HNP to the other connected device, false otherwise\r
+ */\r
+ static inline bool USB_OTG_Device_IsSendingHNP(void);\r
+ \r
+ /** Accepts a HNP from a connected device, indicating that both devices should exchange\r
+ * device/host roles.\r
+ */\r
+ static inline void USB_OTG_Host_AcceptHNP(void);\r
+ \r
+ /** Rejects a HNP from a connected device, indicating that both devices should remain in their\r
+ * current device/host roles.\r
+ */\r
+ static inline void USB_OTG_Host_RejectHNP(void);\r
+ \r
+ /** Indicates if the connected device is not currently sending a HNP request.\r
+ *\r
+ * \return Boolean true if a HNP is currently being issued by the connected device, false otherwise.\r
+ */\r
+ static inline bool USB_OTG_Host_IsHNPReceived(void);\r
+ \r
+ /** Initiates a Session Request Protocol request. Most OTG devices turn off VBUS when the USB\r
+ * interface is not in use, to conserve power. Sending a SRP to a USB OTG device running in\r
+ * host mode indicates that VBUS should be applied and a session started.\r
+ *\r
+ * There are two different methods of sending a SRP - either pulses on the VBUS line, or by\r
+ * pulsing the Data + line via the internal pull-up resistor.\r
+ *\r
+ * \param SRPTypeMask Mask indicating the type of SRP to use, either \ref USB_OTG_SRP_VBUS or \ref USB_OTG_STP_DATA.\r
+ */\r
+ static inline void USB_OTG_Dev_InitiateSRP(uint8_t SRPTypeMask);\r
+ #else\r
+ #define USB_OTG_Device_RequestHNP() MACROS{ OTGCON |= (1 << HNPREQ); }MACROE\r
+\r
+ #define USB_OTG_Device_CancelHNPRequest() MACROS{ OTGCON &= ~(1 << HNPREQ); }MACROE\r
+\r
+ #define USB_OTG_Device_IsSendingHNP() ((OTGCON & (1 << HNPREQ)) ? true : false)\r
+ \r
+ #define USB_OTG_Host_AcceptHNP() MACROS{ OTGCON |= (1 << HNPREQ); }MACROE\r
+\r
+ #define USB_OTG_Host_RejectHNP() MACROS{ OTGCON &= ~(1 << HNPREQ); }MACROE\r
+ \r
+ #define USB_OTG_Host_IsHNPReceived() ((OTGCON & (1 << HNPREQ)) ? true : false)\r
+ \r
+ #define USB_OTG_Device_InitiateSRP(type) MACROS{ OTGCON = ((OTGCON & ~(1 << SRPSEL)) | (type | (1 << SRPREQ))); }MACROE\r
+ #endif\r
+ \r