/*
LUFA Library
- Copyright (C) Dean Camera, 2011.
+ Copyright (C) Dean Camera, 2012.
dean [at] fourwalledcubicle [dot] com
www.lufa-lib.org
*/
/*
- Copyright 2011 Dean Camera (dean [at] fourwalledcubicle [dot] com)
+ Copyright 2012 Dean Camera (dean [at] fourwalledcubicle [dot] com)
Permission to use, copy, modify, distribute, and sell this
software and its documentation for any purpose is hereby granted
*/
#define USB_HOST_TIMEOUT_MS 1000
#endif
-
+
/* Enums: */
/** Enum for the \ref USB_Host_SendControlRequest() return code, indicating the reason for the error
* if the transfer of the request is unsuccessful.
{
HOST_SENDCONTROL_Successful = 0, /**< No error occurred in the request transfer. */
HOST_SENDCONTROL_DeviceDisconnected = 1, /**< The attached device was disconnected during the
- * request transfer.
+ * request transfer.
*/
HOST_SENDCONTROL_PipeError = 2, /**< An error occurred in the pipe while sending the request. */
HOST_SENDCONTROL_SetupStalled = 3, /**< The attached device stalled the request, usually
- * indicating that the request is unsupported on the device.
- */
+ * indicating that the request is unsupported on the device.
+ */
HOST_SENDCONTROL_SoftwareTimeOut = 4, /**< The request or data transfer timed out. */
};
/* Global Variables: */
/** Indicates the currently set configuration number of the attached device. This indicates the currently
- * selected configuration value if one has been set sucessfully, or 0 if no configuration has been selected.
+ * selected configuration value if one has been set successfully, or 0 if no configuration has been selected.
*
* To set a device configuration, call the \ref USB_Host_SetDeviceConfiguration() function.
*
- * \note This variable should be treated as read-only in the user application, and never manually
- * changed in value.
+ * \attention This variable should be treated as read-only in the user application, and never manually
+ * changed in value.
*
* \ingroup Group_Host
*/
extern uint8_t USB_Host_ConfigurationNumber;
-
+
/* Function Prototypes: */
/** Sends the request stored in the \ref USB_ControlRequest global structure to the attached device,
* and transfers the data stored in the buffer to the device, or from the device to the buffer
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_SetDeviceConfiguration(const uint8_t ConfigNumber);
-
+
/** Sends a GET CONFIGURATION standard request to the attached device, to retrieve the currently selected
* device configuration index.
*
*/
uint8_t USB_Host_GetDeviceConfiguration(uint8_t* const ConfigNumber) ATTR_NON_NULL_PTR_ARG(1);
- /** Sends a GET DESCRIPTOR standard request to the attached device, requesting the device descriptor.
- * This can be used to easily retrieve information about the device such as its VID, PID and power
- * requirements.
+ /** Sends a GET DESCRIPTOR standard request to the attached device, requesting the descriptor of the
+ * specified type and index.
*
* \note After this routine returns, the control pipe will be selected.
*
* \ingroup Group_PipeControlReq
*
- * \param[out] DeviceDescriptorPtr Pointer to the destination device descriptor structure where
- * the read data is to be stored.
+ * \param[in] Type Type of descriptor to retrieve, a value from the \ref USB_DescriptorTypes_t enum.
+ * \param[in] Index Index of the descriptor to retrieve.
+ * \param[out] Buffer Pointer to the destination buffer where the retrieved string descriptor is to be stored.
+ * \param[in] BufferLength Maximum size of the string descriptor which can be stored into the buffer.
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
- uint8_t USB_Host_GetDeviceDescriptor(void* const DeviceDescriptorPtr) ATTR_NON_NULL_PTR_ARG(1);
-
- /** Sends a GET DESCRIPTOR standard request to the attached device, requesting the string descriptor
- * of the specified index. This can be used to easily retrieve string descriptors from the device by
- * index, after the index is obtained from the Device or Configuration descriptors.
- *
- * \note After this routine returns, the control pipe will be selected.
- *
- * \ingroup Group_PipeControlReq
- *
- * \param[in] Index Index of the string index to retrieve.
- * \param[out] Buffer Pointer to the destination buffer where the retrieved string descriptor is
- * to be stored.
- * \param[in] BufferLength Maximum size of the string descriptor which can be stored into the buffer.
- *
- * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
- */
- uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
- void* const Buffer,
- const uint8_t BufferLength) ATTR_NON_NULL_PTR_ARG(2);
+ uint8_t USB_Host_GetDescriptor(const uint8_t Type,
+ const uint8_t Index,
+ void* const Buffer,
+ const uint8_t BufferLength) ATTR_NON_NULL_PTR_ARG(3);
/** Retrieves the current feature status of the attached device, via a GET STATUS standard request. The
* retrieved feature status can then be examined by masking the retrieved value with the various
- * FEATURE_* masks for bus/self power information and remote wakeup support.
+ * \c FEATURE_* masks for bus/self power information and remote wakeup support.
*
* \note After this routine returns, the control pipe will be selected.
*
* \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
*/
uint8_t USB_Host_SetInterfaceAltSetting(const uint8_t InterfaceIndex,
- const uint8_t AltSetting);
+ const uint8_t AltSetting);
/** Retrieves the current alternative setting for the specified interface, via a GET INTERFACE standard request to
*/
uint8_t USB_Host_GetInterfaceAltSetting(const uint8_t InterfaceIndex,
uint8_t* const AltSetting) ATTR_NON_NULL_PTR_ARG(2);
-
+
+ /* Inline Functions: */
+ /** Sends a GET DESCRIPTOR standard request to the attached device, requesting the device descriptor.
+ * This can be used to easily retrieve information about the device such as its VID, PID and power
+ * requirements. This is a convenience wrapper for \ref USB_Host_GetDescriptor().
+ *
+ * \note After this routine returns, the control pipe will be selected.
+ *
+ * \ingroup Group_PipeControlReq
+ *
+ * \param[out] DeviceDescriptorPtr Pointer to the destination device descriptor structure where
+ * the read data is to be stored.
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
+ */
+ static inline uint8_t USB_Host_GetDeviceDescriptor(USB_Descriptor_Device_t* const DeviceDescriptorPtr) ATTR_NON_NULL_PTR_ARG(1);
+ static inline uint8_t USB_Host_GetDeviceDescriptor(USB_Descriptor_Device_t* const DeviceDescriptorPtr)
+ {
+ return USB_Host_GetDescriptor(DTYPE_Device, 0, DeviceDescriptorPtr, sizeof(USB_Descriptor_Device_t));
+ }
+
+ /** Sends a GET DESCRIPTOR standard request to the attached device, requesting the string descriptor
+ * of the specified index. This can be used to easily retrieve string descriptors from the device by
+ * index, after the index is obtained from the Device or Configuration descriptors. This is a convenience
+ * wrapper for \ref USB_Host_GetDescriptor().
+ *
+ * \note After this routine returns, the control pipe will be selected.
+ *
+ * \ingroup Group_PipeControlReq
+ *
+ * \param[in] Index Index of the string descriptor to retrieve.
+ * \param[out] Buffer Pointer to the destination buffer where the retrieved string descriptor is
+ * to be stored.
+ * \param[in] BufferLength Maximum size of the string descriptor which can be stored into the buffer.
+ *
+ * \return A value from the \ref USB_Host_SendControlErrorCodes_t enum to indicate the result.
+ */
+ static inline uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
+ void* const Buffer,
+ const uint8_t BufferLength) ATTR_NON_NULL_PTR_ARG(2);
+ static inline uint8_t USB_Host_GetDeviceStringDescriptor(const uint8_t Index,
+ void* const Buffer,
+ const uint8_t BufferLength)
+ {
+ return USB_Host_GetDescriptor(DTYPE_String, Index, Buffer, BufferLength);
+ }
+
/* Private Interface - For use in library only: */
#if !defined(__DOXYGEN__)
/* Enums: */
/* Function Prototypes: */
#if defined(__INCLUDE_FROM_HOSTSTDREQ_C)
+ static uint8_t USB_Host_SendControlRequest_PRV(void* const BufferPtr);
static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType);
#endif
#endif
projects / pub / USBasp.git / blobdiff