/*\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
-\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
+ 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
*\r
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.\r
*/\r
- uint8_t USB_Host_SetDeviceConfiguration(uint8_t ConfigNumber);\r
+ uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber);\r
\r
/** Convenience function. This routine sends a GetDescriptor standard request to the attached\r
* device, requesting the device descriptor. This can be used to easily retrieve information\r
*\r
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.\r
*/\r
- uint8_t USB_Host_GetDeviceDescriptor(void* DeviceDescriptorPtr);\r
+ uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr);\r
+ \r
+ /** Convenience function. This routine sends a GetDescriptor standard request to the attached\r
+ * device, requesting the string descriptor of the specified index. This can be used to easily\r
+ * retrieve string descriptors from the device by index, after the index is obtained from the\r
+ * Device or Configuration descriptors.\r
+ *\r
+ * \note After this routine returns, the control pipe will be selected.\r
+ *\r
+ * \param[in] Index Index of the string index to retrieve\r
+ * \param[out] Buffer Pointer to the destination buffer where the retrieved string decriptor is\r
+ * to be stored\r
+ * \param[in] BufferLength Maximum size of the string descriptor which can be stored into the buffer\r
+ *\r
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.\r
+ */\r
+ uint8_t USB_Host_GetDeviceStringDescriptor(uint8_t Index, void* const Buffer, uint8_t BufferLength);\r
\r
/** Clears a stall condition on the given pipe, via a ClearFeature request to the attached device.\r
*\r
*/\r
enum USB_Host_States_t\r
{\r
- HOST_STATE_WaitForDevice = 0, /**< Internally implemented by the library. */\r
- HOST_STATE_Unattached = 1, /**< Internally implemented by the library. */\r
- HOST_STATE_Attached = 2, /**< Internally implemented by the library. */\r
- HOST_STATE_Attached_WaitForDeviceSettle = 3, /**< Internally implemented by the library. */\r
- HOST_STATE_Attached_WaitForConnect = 4, /**< Internally implemented by the library. */\r
- HOST_STATE_Attached_DoReset = 5, /**< Internally implemented by the library. */\r
- HOST_STATE_Powered = 6, /**< Internally implemented by the library. */\r
- HOST_STATE_Default = 7, /**< Internally implemented by the library. */\r
- HOST_STATE_Default_PostReset = 8, /**< Internally implemented by the library. */\r
- HOST_STATE_Default_PostAddressSet = 9, /**< Internally implemented by the library. */\r
- HOST_STATE_Addressed = 10, /**< May be implemented by the user project. */\r
- HOST_STATE_Configured = 11, /**< May be implemented by the user project. */\r
- HOST_STATE_Ready = 12, /**< May be implemented by the user project. */\r
- HOST_STATE_Suspended = 13, /**< May be implemented by the user project. */\r
+ HOST_STATE_WaitForDeviceRemoval = 0, /**< Internally implemented by the library. This state can be\r
+ * used by the library to wait until the attached device is\r
+ * removed by the user - useful for when an error occurs or\r
+ * further communication with the device is not needed. This\r
+ * allows for other code to run while the state machine is\r
+ * effectively disabled.\r
+ */\r
+ HOST_STATE_WaitForDevice = 1, /**< Internally implemented by the library. This state indicates\r
+ * that the stack is waiting for an interval to elapse before\r
+ * continuing with the next step of the device enumeration\r
+ * process.\r
+ *\r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Unattached = 2, /**< Internally implemented by the library. This state indicates\r
+ * that the host state machine is waiting for a device to be\r
+ * attached so that it can start the enumeration process.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Powered = 3, /**< Internally implemented by the library. This state indicates\r
+ * that a device has been attached, and the library's internals\r
+ * are being configured to begin the enumeration process.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Powered_WaitForDeviceSettle = 4, /**< Internally implemented by the library. This state indicates\r
+ * that the stack is waiting for the initial settling period to\r
+ * elapse before beginning the enumeration process.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Powered_WaitForConnect = 5, /**< Internally implemented by the library. This state indicates\r
+ * that the stack is waiting for a connection event from the USB\r
+ * controller to indicate a valid USB device has been attached to\r
+ * the bus and is ready to be enumerated.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Powered_DoReset = 6, /**< Internally implemented by the library. This state indicates\r
+ * that a valid USB device has been attached, and that it is\r
+ * will now be reset to ensure it is ready for enumeration.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Powered_ConfigPipe = 7, /**< Internally implemented by the library. This state indicates\r
+ * that the attached device is currently powered and reset, and\r
+ * that the control pipe is now being configured by the stack.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Default = 8, /**< Internally implemented by the library. This state indicates\r
+ * that the stack is currently retrieving the control endpoint's\r
+ * size from the device, so that the control pipe can be altered\r
+ * to match.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Default_PostReset = 9, /**< Internally implemented by the library. This state indicates that\r
+ * the control pipe is being reconfigured to match the retrieved\r
+ * control endpoint size from the device, and the device's USB bus\r
+ * address is being set.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Default_PostAddressSet = 10, /**< Internally implemented by the library. This state indicates that\r
+ * the device's address has now been set, and the stack is has now\r
+ * completed the device enumeration process. This state causes the\r
+ * stack to change the current USB device address to that set for\r
+ * the connected device, before progressing to the user-implemented\r
+ * HOST_STATE_Addressed state for further communications.\r
+ * \r
+ * \note Do not manually change to this state in the user code.\r
+ */\r
+ HOST_STATE_Addressed = 11, /**< May be implemented by the user project. This state should\r
+ * set the device configuration before progressing to the\r
+ * HOST_STATE_Configured state. Other processing (such as the\r
+ * retrieval and processing of the device descriptor) should also\r
+ * be placed in this state.\r
+ */\r
+ HOST_STATE_Configured = 12, /**< May be implemented by the user project. This state should implement the\r
+ * actual work performed on the attached device and changed to the\r
+ * HOST_STATE_Suspended or HOST_STATE_WaitForDeviceRemoval states as needed.\r
+ */\r
+ HOST_STATE_Suspended = 15, /**< May be implemented by the user project. This state should be maintained\r
+ * while the bus is suspended, and changed to either the HOST_STATE_Configured\r
+ * (after resuming the bus with the USB_Host_ResumeBus() macro) or the\r
+ * HOST_STATE_WaitForDeviceRemoval states as needed.\r
+ */\r
};\r
\r
- /** Enum for the error codes for the \ref EVENT_USB_HostError() event.\r
+ /** Enum for the error codes for the \ref EVENT_USB_Host_HostError() event.\r
*\r
* \see \ref Group_Events for more information on this event.\r
*/\r
*/\r
};\r
\r
- /** Enum for the error codes for the \ref EVENT_USB_DeviceEnumerationFailed() event.\r
+ /** Enum for the error codes for the \ref EVENT_USB_Host_DeviceEnumerationFailed() event.\r
*\r
* \see \ref Group_Events for more information on this event.\r
*/\r
enum USB_Host_EnumerationErrorCodes_t\r
{\r
HOST_ENUMERROR_NoError = 0, /**< No error occurred. Used internally, this is not a valid\r
- * ErrorCode parameter value for the \ref EVENT_USB_DeviceEnumerationFailed()\r
+ * ErrorCode parameter value for the \ref EVENT_USB_Host_DeviceEnumerationFailed()\r
* event.\r
*/\r
HOST_ENUMERROR_WaitStage = 1, /**< One of the delays between enumeration steps failed\r
#define USB_Host_VBUS_Auto_Off() MACROS{ OTGCON |= (1 << VBUSRQC); }MACROE\r
#define USB_Host_VBUS_Manual_Off() MACROS{ PORTE &= ~(1 << 7); }MACROE\r
\r
- #define USB_Host_SetDeviceAddress(addr) MACROS{ UHADDR = (addr & 0x7F); }MACROE\r
+ #define USB_Host_SetDeviceAddress(addr) MACROS{ UHADDR = ((addr) & 0x7F); }MACROE\r
\r
/* Enums: */\r
enum USB_Host_WaitMSErrorCodes_t\r
projects / pub / USBasp.git / blobdiff