198 lines
6.7 KiB
C
198 lines
6.7 KiB
C
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/*
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LUFA Library
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Copyright (C) Dean Camera, 2017.
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dean [at] fourwalledcubicle [dot] com
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www.lufa-lib.org
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*/
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/*
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Copyright 2017 Dean Camera (dean [at] fourwalledcubicle [dot] com)
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Permission to use, copy, modify, distribute, and sell this
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software and its documentation for any purpose is hereby granted
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without fee, provided that the above copyright notice appear in
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all copies and that both that the copyright notice and this
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permission notice and warranty disclaimer appear in supporting
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documentation, and that the name of the author not be used in
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advertising or publicity pertaining to distribution of the
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software without specific, written prior permission.
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The author disclaims all warranties with regard to this
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software, including all implied warranties of merchantability
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and fitness. In no event shall the author be liable for any
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special, indirect or consequential damages or any damages
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whatsoever resulting from loss of use, data or profits, whether
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in an action of contract, negligence or other tortious action,
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arising out of or in connection with the use or performance of
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this software.
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*/
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#define __INCLUDE_FROM_USB_DRIVER
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#include "../../Core/USBMode.h"
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#if defined(USB_CAN_BE_DEVICE)
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#define __INCLUDE_FROM_AUDIO_DRIVER
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#define __INCLUDE_FROM_AUDIO_DEVICE_C
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#include "AudioClassDevice.h"
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void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
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{
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if (!(Endpoint_IsSETUPReceived()))
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return;
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if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_INTERFACE)
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{
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uint8_t InterfaceIndex = (USB_ControlRequest.wIndex & 0xFF);
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if ((InterfaceIndex != AudioInterfaceInfo->Config.ControlInterfaceNumber) &&
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(InterfaceIndex != AudioInterfaceInfo->Config.StreamingInterfaceNumber))
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{
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return;
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}
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}
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else if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_ENDPOINT)
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{
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uint8_t EndpointAddress = (USB_ControlRequest.wIndex & 0xFF);
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if ((EndpointAddress != AudioInterfaceInfo->Config.DataINEndpoint.Address) &&
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(EndpointAddress != AudioInterfaceInfo->Config.DataOUTEndpoint.Address))
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{
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return;
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}
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}
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switch (USB_ControlRequest.bRequest)
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{
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case REQ_SetInterface:
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if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE))
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{
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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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AudioInterfaceInfo->State.InterfaceEnabled = ((USB_ControlRequest.wValue & 0xFF) != 0);
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EVENT_Audio_Device_StreamStartStop(AudioInterfaceInfo);
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}
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break;
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case AUDIO_REQ_GetStatus:
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if ((USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) ||
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(USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT)))
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{
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Endpoint_ClearSETUP();
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Endpoint_ClearStatusStage();
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}
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break;
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case AUDIO_REQ_SetCurrent:
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case AUDIO_REQ_SetMinimum:
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case AUDIO_REQ_SetMaximum:
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case AUDIO_REQ_SetResolution:
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if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_ENDPOINT)
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{
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uint8_t EndpointProperty = USB_ControlRequest.bRequest;
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uint8_t EndpointAddress = (uint8_t)USB_ControlRequest.wIndex;
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uint8_t EndpointControl = (USB_ControlRequest.wValue >> 8);
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if (CALLBACK_Audio_Device_GetSetEndpointProperty(AudioInterfaceInfo, EndpointProperty, EndpointAddress,
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EndpointControl, NULL, NULL))
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{
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uint16_t ValueLength = USB_ControlRequest.wLength;
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uint8_t Value[ValueLength];
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Endpoint_ClearSETUP();
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Endpoint_Read_Control_Stream_LE(Value, ValueLength);
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Endpoint_ClearIN();
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CALLBACK_Audio_Device_GetSetEndpointProperty(AudioInterfaceInfo, EndpointProperty, EndpointAddress,
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EndpointControl, &ValueLength, Value);
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}
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}
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else if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_INTERFACE)
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{
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uint8_t Property = USB_ControlRequest.bRequest;
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uint8_t Entity = (USB_ControlRequest.wIndex >> 8);
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uint16_t Parameter = USB_ControlRequest.wValue;
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if (CALLBACK_Audio_Device_GetSetInterfaceProperty(AudioInterfaceInfo, Property, Entity,
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Parameter, NULL, NULL))
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{
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uint16_t ValueLength = USB_ControlRequest.wLength;
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uint8_t Value[ValueLength];
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Endpoint_ClearSETUP();
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Endpoint_Read_Control_Stream_LE(Value, ValueLength);
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Endpoint_ClearIN();
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CALLBACK_Audio_Device_GetSetInterfaceProperty(AudioInterfaceInfo, Property, Entity,
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Parameter, &ValueLength, Value);
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}
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}
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break;
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case AUDIO_REQ_GetCurrent:
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case AUDIO_REQ_GetMinimum:
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case AUDIO_REQ_GetMaximum:
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case AUDIO_REQ_GetResolution:
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if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_ENDPOINT)
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{
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uint8_t EndpointProperty = USB_ControlRequest.bRequest;
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uint8_t EndpointAddress = (uint8_t)USB_ControlRequest.wIndex;
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uint8_t EndpointControl = (USB_ControlRequest.wValue >> 8);
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uint16_t ValueLength = USB_ControlRequest.wLength;
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uint8_t Value[ValueLength];
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if (CALLBACK_Audio_Device_GetSetEndpointProperty(AudioInterfaceInfo, EndpointProperty, EndpointAddress,
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EndpointControl, &ValueLength, Value))
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{
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Endpoint_ClearSETUP();
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Endpoint_Write_Control_Stream_LE(Value, ValueLength);
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Endpoint_ClearOUT();
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}
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}
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else if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_INTERFACE)
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{
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uint8_t Property = USB_ControlRequest.bRequest;
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uint8_t Entity = (USB_ControlRequest.wIndex >> 8);
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uint16_t Parameter = USB_ControlRequest.wValue;
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uint16_t ValueLength = USB_ControlRequest.wLength;
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uint8_t Value[ValueLength];
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if (CALLBACK_Audio_Device_GetSetInterfaceProperty(AudioInterfaceInfo, Property, Entity,
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Parameter, &ValueLength, Value))
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{
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Endpoint_ClearSETUP();
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Endpoint_Write_Control_Stream_LE(Value, ValueLength);
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Endpoint_ClearOUT();
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}
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}
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break;
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}
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}
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bool Audio_Device_ConfigureEndpoints(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo)
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{
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memset(&AudioInterfaceInfo->State, 0x00, sizeof(AudioInterfaceInfo->State));
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AudioInterfaceInfo->Config.DataINEndpoint.Type = EP_TYPE_ISOCHRONOUS;
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AudioInterfaceInfo->Config.DataOUTEndpoint.Type = EP_TYPE_ISOCHRONOUS;
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if (!(Endpoint_ConfigureEndpointTable(&AudioInterfaceInfo->Config.DataINEndpoint, 1)))
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return false;
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if (!(Endpoint_ConfigureEndpointTable(&AudioInterfaceInfo->Config.DataOUTEndpoint, 1)))
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return false;
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return true;
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}
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void Audio_Device_Event_Stub(void)
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{
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}
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#endif
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