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author | Dean Camera <dean@fourwalledcubicle.com> | 2011-11-18 06:26:51 +0000 |
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committer | Dean Camera <dean@fourwalledcubicle.com> | 2011-11-18 06:26:51 +0000 |
commit | eb2e883fd35b5332a7425488105a7adb500ce3fe (patch) | |
tree | fb56521b575c979681147b3ae80a8c63a881544b /LUFA/Drivers/USB/Class/Device/AudioClassDevice.c | |
parent | 3e044872790072838c2d1d0370b98b6ebf4fea93 (diff) | |
download | lufa-eb2e883fd35b5332a7425488105a7adb500ce3fe.tar.gz lufa-eb2e883fd35b5332a7425488105a7adb500ce3fe.tar.bz2 lufa-eb2e883fd35b5332a7425488105a7adb500ce3fe.zip |
Added Class, ClassDevice, ClassHost and ClassCommon to the internal class driver source filenames to prevent ambiguities.
Diffstat (limited to 'LUFA/Drivers/USB/Class/Device/AudioClassDevice.c')
-rw-r--r-- | LUFA/Drivers/USB/Class/Device/AudioClassDevice.c | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/LUFA/Drivers/USB/Class/Device/AudioClassDevice.c b/LUFA/Drivers/USB/Class/Device/AudioClassDevice.c new file mode 100644 index 000000000..d8c5d29eb --- /dev/null +++ b/LUFA/Drivers/USB/Class/Device/AudioClassDevice.c @@ -0,0 +1,182 @@ +/* + 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. +*/ + +#define __INCLUDE_FROM_USB_DRIVER +#include "../../Core/USBMode.h" + +#if defined(USB_CAN_BE_DEVICE) + +#define __INCLUDE_FROM_AUDIO_DRIVER +#define __INCLUDE_FROM_AUDIO_DEVICE_C +#include "AudioClassDevice.h" + +void Audio_Device_ProcessControlRequest(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) +{ + if (!(Endpoint_IsSETUPReceived())) + return; + + if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_INTERFACE) + { + if (USB_ControlRequest.wIndex != AudioInterfaceInfo->Config.StreamingInterfaceNumber) + return; + } + else if ((USB_ControlRequest.bmRequestType & CONTROL_REQTYPE_RECIPIENT) == REQREC_ENDPOINT) + { + bool EndpointFilterMatch = false; + + EndpointFilterMatch |= (AudioInterfaceInfo->Config.DataINEndpointNumber && + ((uint8_t)USB_ControlRequest.wIndex == (ENDPOINT_DIR_IN | AudioInterfaceInfo->Config.DataINEndpointNumber))); + + EndpointFilterMatch |= (AudioInterfaceInfo->Config.DataOUTEndpointNumber && + ((uint8_t)USB_ControlRequest.wIndex == (ENDPOINT_DIR_OUT | AudioInterfaceInfo->Config.DataOUTEndpointNumber))); + + if (!(EndpointFilterMatch)) + return; + } + + switch (USB_ControlRequest.bRequest) + { + case REQ_SetInterface: + if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_STANDARD | REQREC_INTERFACE)) + { + Endpoint_ClearSETUP(); + Endpoint_ClearStatusStage(); + + AudioInterfaceInfo->State.InterfaceEnabled = ((USB_ControlRequest.wValue & 0xFF) != 0); + EVENT_Audio_Device_StreamStartStop(AudioInterfaceInfo); + } + + break; + case AUDIO_REQ_GetStatus: + if ((USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE)) || + (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT))) + { + Endpoint_ClearSETUP(); + Endpoint_ClearStatusStage(); + } + + break; + case AUDIO_REQ_SetCurrent: + case AUDIO_REQ_SetMinimum: + case AUDIO_REQ_SetMaximum: + case AUDIO_REQ_SetResolution: + if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_ENDPOINT)) + { + uint8_t EndpointProperty = USB_ControlRequest.bRequest; + uint8_t EndpointAddress = (uint8_t)USB_ControlRequest.wIndex; + uint8_t EndpointControl = (USB_ControlRequest.wValue >> 8); + + if (CALLBACK_Audio_Device_GetSetEndpointProperty(AudioInterfaceInfo, EndpointProperty, EndpointAddress, + EndpointControl, NULL, NULL)) + { + uint16_t ValueLength = USB_ControlRequest.wLength; + uint8_t Value[ValueLength]; + + Endpoint_ClearSETUP(); + Endpoint_Read_Control_Stream_LE(Value, ValueLength); + Endpoint_ClearIN(); + + CALLBACK_Audio_Device_GetSetEndpointProperty(AudioInterfaceInfo, EndpointProperty, EndpointAddress, + EndpointControl, &ValueLength, Value); + } + } + + break; + case AUDIO_REQ_GetCurrent: + case AUDIO_REQ_GetMinimum: + case AUDIO_REQ_GetMaximum: + case AUDIO_REQ_GetResolution: + if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_ENDPOINT)) + { + uint8_t EndpointProperty = USB_ControlRequest.bRequest; + uint8_t EndpointAddress = (uint8_t)USB_ControlRequest.wIndex; + uint8_t EndpointControl = (USB_ControlRequest.wValue >> 8); + uint16_t ValueLength = USB_ControlRequest.wLength; + uint8_t Value[ValueLength]; + + if (CALLBACK_Audio_Device_GetSetEndpointProperty(AudioInterfaceInfo, EndpointProperty, EndpointAddress, + EndpointControl, &ValueLength, Value)) + { + Endpoint_ClearSETUP(); + Endpoint_Write_Control_Stream_LE(Value, ValueLength); + Endpoint_ClearOUT(); + } + } + + break; + } +} + +bool Audio_Device_ConfigureEndpoints(USB_ClassInfo_Audio_Device_t* const AudioInterfaceInfo) +{ + memset(&AudioInterfaceInfo->State, 0x00, sizeof(AudioInterfaceInfo->State)); + + for (uint8_t EndpointNum = 1; EndpointNum < ENDPOINT_TOTAL_ENDPOINTS; EndpointNum++) + { + uint16_t Size; + uint8_t Type; + uint8_t Direction; + bool DoubleBanked; + + if (EndpointNum == AudioInterfaceInfo->Config.DataINEndpointNumber) + { + Size = AudioInterfaceInfo->Config.DataINEndpointSize; + Direction = ENDPOINT_DIR_IN; + Type = EP_TYPE_ISOCHRONOUS; + DoubleBanked = true; + } + else if (EndpointNum == AudioInterfaceInfo->Config.DataOUTEndpointNumber) + { + Size = AudioInterfaceInfo->Config.DataOUTEndpointSize; + Direction = ENDPOINT_DIR_OUT; + Type = EP_TYPE_ISOCHRONOUS; + DoubleBanked = true; + } + else + { + continue; + } + + if (!(Endpoint_ConfigureEndpoint(EndpointNum, Type, Direction, Size, + DoubleBanked ? ENDPOINT_BANK_DOUBLE : ENDPOINT_BANK_SINGLE))) + { + return false; + } + } + + return true; +} + +void Audio_Device_Event_Stub(void) +{ + +} + +#endif |