X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/2793c88fc601dcc7ec4961326dd9748a20f3ec83..77a9df36a77d2523dd2bc24fa17f9f04c6c175c5:/Demos/Host/Incomplete/BluetoothHost/DeviceDescriptor.c?ds=inline diff --git a/Demos/Host/Incomplete/BluetoothHost/DeviceDescriptor.c b/Demos/Host/Incomplete/BluetoothHost/DeviceDescriptor.c index e9f575c55..3485a05c0 100644 --- a/Demos/Host/Incomplete/BluetoothHost/DeviceDescriptor.c +++ b/Demos/Host/Incomplete/BluetoothHost/DeviceDescriptor.c @@ -1,66 +1,68 @@ -/* - LUFA Library - Copyright (C) Dean Camera, 2009. - - dean [at] fourwalledcubicle [dot] com - www.fourwalledcubicle.com -*/ - -/* - Copyright 2009 Dean Camera (dean [at] fourwalledcubicle [dot] com) - - Permission to use, copy, modify, and distribute this software - and its documentation for any purpose and without fee is hereby - granted, provided that the above copyright notice appear in all - copies and that both that the copyright notice and this - permission notice and warranty disclaimer appear in supporting - documentation, and that the name of the author not be used in - advertising or publicity pertaining to distribution of the - software without specific, written prior permission. - - The author disclaim all warranties with regard to this - software, including all implied warranties of merchantability - and fitness. In no event shall the author be liable for any - special, indirect or consequential damages or any damages - whatsoever resulting from loss of use, data or profits, whether - in an action of contract, negligence or other tortious action, - arising out of or in connection with the use or performance of - this software. -*/ - -#include "DeviceDescriptor.h" - -uint8_t ProcessDeviceDescriptor(void) -{ - USB_Descriptor_Device_t DeviceDescriptor; - - /* Standard request to get the device descriptor */ - USB_ControlRequest = (USB_Request_Header_t) - { - bmRequestType: (REQDIR_DEVICETOHOST | REQTYPE_STANDARD | REQREC_DEVICE), - bRequest: REQ_GetDescriptor, - wValue: (DTYPE_Device << 8), - wIndex: 0, - wLength: sizeof(USB_Descriptor_Device_t), - }; - - /* Select the control pipe for the request transfer */ - Pipe_SelectPipe(PIPE_CONTROLPIPE); - - /* Send the request to retrieve the device descriptor */ - if (USB_Host_SendControlRequest((void*)&DeviceDescriptor) != HOST_SENDCONTROL_Successful) - return ControlErrorDuringDeviceRead; - - /* Validate returned data - ensure the returned data is a device descriptor */ - if (DeviceDescriptor.Header.Type != DTYPE_Device) - return InvalidDeviceDataReturned; - - if ((DeviceDescriptor.Class != BLUETOOTH_DEVICE_CLASS) || - (DeviceDescriptor.SubClass != BLUETOOTH_DEVICE_SUBCLASS) || - (DeviceDescriptor.Protocol != BLUETOOTH_DEVICE_PROTOCOL)) - { - return IncorrectDevice; - } - - return SuccessfulDeviceRead; -} +/* + LUFA Library + Copyright (C) Dean Camera, 2011. + + dean [at] fourwalledcubicle [dot] com + www.lufa-lib.org +*/ + +/* + Copyright 2011 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 + without fee, provided that the above copyright notice appear in + all copies and that both that the copyright notice and this + permission notice and warranty disclaimer appear in supporting + documentation, and that the name of the author not be used in + advertising or publicity pertaining to distribution of the + software without specific, written prior permission. + + The author disclaim all warranties with regard to this + software, including all implied warranties of merchantability + and fitness. In no event shall the author be liable for any + special, indirect or consequential damages or any damages + whatsoever resulting from loss of use, data or profits, whether + in an action of contract, negligence or other tortious action, + arising out of or in connection with the use or performance of + this software. +*/ + +/** \file + * + * USB Device Descriptor processing routines, to determine the overall device parameters. Descriptors are special + * computer-readable structures which the host requests upon device enumeration, to determine information about + * the attached device. + */ + +#include "DeviceDescriptor.h" + +/** Reads and processes an attached device's Device Descriptor, to determine compatibility + * + * This routine checks to ensure that the attached device's class codes match those for Bluetooth devices. + * + * \return An error code from the \ref BluetoothHost_GetDeviceDescriptorDataCodes_t enum. + */ +uint8_t ProcessDeviceDescriptor(void) +{ + USB_Descriptor_Device_t DeviceDescriptor; + + /* Send the request to retrieve the device descriptor */ + if (USB_Host_GetDeviceDescriptor(&DeviceDescriptor) != HOST_SENDCONTROL_Successful) + return DevControlError; + + /* Validate returned data - ensure the returned data is a device descriptor */ + if (DeviceDescriptor.Header.Type != DTYPE_Device) + return InvalidDeviceDataReturned; + + /* Validate returned device Class, SubClass and Protocol values against the Bluetooth spec values */ + if ((DeviceDescriptor.Class != BLUETOOTH_DEVICE_CLASS) || + (DeviceDescriptor.SubClass != BLUETOOTH_DEVICE_SUBCLASS) || + (DeviceDescriptor.Protocol != BLUETOOTH_DEVICE_PROTOCOL)) + { + return IncorrectBTDevice; + } + + return SuccessfulDeviceRead; +} +