/*\r
LUFA Library\r
- Copyright (C) Dean Camera, 2009.\r
+ Copyright (C) Dean Camera, 2010.\r
\r
dean [at] fourwalledcubicle [dot] com\r
www.fourwalledcubicle.com\r
*/\r
\r
/*\r
- Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+ Copyright 2010 Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
\r
- Permission to use, copy, modify, and distribute this software\r
- and its documentation for any purpose and without fee is hereby\r
- granted, provided that the above copyright notice appear in all\r
- 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
+ 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
arising out of or in connection with the use or performance of\r
this software.\r
*/\r
-\r
-/** \file\r
+ \r
+/** \ingroup Group_USB\r
+ * @defgroup Group_OTG USB On The Go (OTG) Management\r
*\r
- * Macros for embedded USB hosts with dual role On The Go capabilities, for managing role exchange. OTG\r
- * is a way for two USB dual role devices to talk to one another directly without fixed device/host roles.\r
+ * This module contains macros for embedded USB hosts with dual role On The Go capabilities, for managing role\r
+ * exchange. OTG is a way for two USB dual role devices to talk to one another directly without fixed device/host\r
+ * roles.\r
*\r
- * \note These macros are only for AVRs which support the OTG protocol, and do not exist for device-only AVRs.\r
+ * @{\r
*/\r
\r
#ifndef __USBOTG_H__\r
\r
/* Public Interface - May be used in end-application: */\r
/* Macros: */\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
- #define USB_OTG_DEV_Request_HNP() MACROS{ OTGCON |= (1 << HNPREQ); }MACROE\r
-\r
- /** Cancel a Host Negotiation Protocol request. This stops a pending HNP request to the other\r
- * connected device.\r
- */\r
- #define USB_OTG_DEV_Cancel_HNP_Request() MACROS{ OTGCON &= ~(1 << HNPREQ); }MACROE\r
-\r
- /** Returns boolean false if not currently sending a HNP to the other connected device, or true\r
- * if a HNP is currently being issued.\r
- */\r
- #define USB_OTG_DEV_IsSendingHNP() ((OTGCON & (1 << HNPREQ)) ? true : false)\r
- \r
- /** Accepts a HNP from a connected device, indicating that both devices should exchange\r
- * device/host roles.\r
- */\r
- #define USB_OTG_HOST_Accept_HNP() USB_OTG_DEV_Request_HNP()\r
-\r
- /** Rejects a HNP from a connected device, indicating that both devices should remain in their\r
- * current device/host roles.\r
- */\r
- #define USB_OTG_HOST_Reject_HNP() USB_OTG_DEV_Cancel_HNP_Request()\r
- \r
- /** Returns boolean false if the connected device is not currently sending a HNP request, or true\r
- * if a HNP is currently being issued by the connected device.\r
- */\r
- #define USB_OTG_HOST_IsHNPReceived() ((OTGCON & (1 << HNPREQ)) ? true : false)\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. The SRP mode is given as the\r
- * "type" parameter, and can be either USB_OTG_SRP_VBUS or USB_OTG_STP_DATA.\r
- */\r
- #define USB_OTG_DEV_Initiate_SRP(type) MACROS{ OTGCON = ((OTGCON & ~(1 << SRPSEL)) | (type | (1 << SRPREQ))); }MACROE\r
-\r
/** Mask for the VBUS pulsing method of SRP, supported by some OTG devices.\r
*\r
* \see USB_OTG_DEV_Initiate_SRP()\r
*/ \r
#define USB_OTG_STP_DATA 0\r
\r
+ /* 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[in] 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
#endif\r
+ \r
+/** @} */\r
projects / pub / USBasp.git / blobdiff