/** Task to manage an enumerated USB Bluetooth adapter once connected, to display movement data as it is received. */
void BluetoothAdapter_USBTask(void)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(BluetoothAdapter_IsActive))
	  return;

	Pipe_SelectPipe(BLUETOOTH_DATA_IN_PIPE);
	Pipe_Unfreeze();
	
	if (Pipe_IsINReceived())
	{
		BT_HCIData_Header_t* PacketHeader = (BT_HCIData_Header_t*)BluetoothAdapter_Stack.Config.PacketBuffer;

		/* Read in the HCI Data packet data from the Data IN pipe */
		Pipe_Read_Stream_LE(PacketHeader, sizeof(BT_HCIData_Header_t), NULL);
		Pipe_Read_Stream_LE(PacketHeader->Data, PacketHeader->DataLength, NULL);
		Pipe_ClearIN();
		Pipe_Freeze();

//		RGB_SetColour(RGB_ALIAS_Busy);
		Bluetooth_ProcessPacket(&BluetoothAdapter_Stack, BLUETOOTH_PACKET_HCIData);
//		RGB_SetColour(RGB_ALIAS_Connected);
	}
	
	Pipe_Freeze();
	
	Pipe_SelectPipe(BLUETOOTH_EVENTS_PIPE);
	Pipe_Unfreeze();
	
	if (Pipe_IsINReceived())
	{
		BT_HCIEvent_Header_t* EventHeader = (BT_HCIEvent_Header_t*)BluetoothAdapter_Stack.Config.PacketBuffer;

		/* Read in the HCI Event packet data from the Event IN pipe */
		Pipe_Read_Stream_LE(EventHeader, sizeof(BT_HCIEvent_Header_t), NULL);
		Pipe_Read_Stream_LE(EventHeader->Parameters, EventHeader->ParameterLength, NULL);
		Pipe_ClearIN();
		Pipe_Freeze();

		//RGB_SetColour(RGB_ALIAS_Busy);
		Bluetooth_ProcessPacket(&BluetoothAdapter_Stack, BLUETOOTH_PACKET_HCIEvent);
		//RGB_SetColour(RGB_ALIAS_Connected);
	}
	
	Pipe_Freeze();
	
	/* Keep on running the management routine until all pending packets have been sent */
	while (Bluetooth_ManageConnections(&BluetoothAdapter_Stack)){};	
	//while (Bluetooth_ManageConnections(&BluetoothAdapter_Stack))
	  //RGB_SetColour(RGB_ALIAS_Busy);

}
/** Task to read in data received from the attached CDC device and print it to the serial port.
 */
void CDCHost_Task(void)
{
	if (USB_HostState != HOST_STATE_Configured)
	  return;

	/* Select the data IN pipe */
	Pipe_SelectPipe(CDC_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (Pipe_IsINReceived())
	{
		/* Re-freeze IN pipe after the packet has been received */
		Pipe_Freeze();

		/* Check if data is in the pipe */
		if (Pipe_IsReadWriteAllowed())
		{
			/* Get the length of the pipe data, and create a new buffer to hold it */
			uint16_t BufferLength = Pipe_BytesInPipe();
			uint8_t  Buffer[BufferLength];

			/* Read in the pipe data to the temporary buffer */
			Pipe_Read_Stream_LE(Buffer, BufferLength, NULL);

			/* Print out the buffer contents to the USART */
			for (uint16_t BufferByte = 0; BufferByte < BufferLength; BufferByte++)
			  putchar(Buffer[BufferByte]);
		}

		/* Clear the pipe after it is read, ready for the next packet */
		Pipe_ClearIN();
	}

	/* Re-freeze IN pipe after use */
	Pipe_Freeze();

	/* Select and unfreeze the notification pipe */
	Pipe_SelectPipe(CDC_NOTIFICATION_PIPE);
	Pipe_Unfreeze();

	/* Check if a packet has been received */
	if (Pipe_IsINReceived())
	{
		/* Discard the unused event notification */
		Pipe_ClearIN();
	}

	/* Freeze notification IN pipe after use */
	Pipe_Freeze();
}
/** Task to read and process the HID report descriptor and HID reports from the device and display the
 *  results onto the board LEDs.
 */
void MouseHost_Task(void)
{
	if (USB_HostState != HOST_STATE_Configured)
	  return;

	/* Select and unfreeze mouse data pipe */
	Pipe_SelectPipe(MOUSE_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (Pipe_IsINReceived())
	{
		/* Check if data has been received from the attached mouse */
		if (Pipe_IsReadWriteAllowed())
		{
			/* Create buffer big enough for the report */
			uint8_t MouseReport[Pipe_BytesInPipe()];

			/* Load in the mouse report */
			Pipe_Read_Stream_LE(MouseReport, Pipe_BytesInPipe(), NULL);

			/* Process the read in mouse report from the device */
			ProcessMouseReport(MouseReport);
		}

		/* Clear the IN endpoint, ready for next data packet */
		Pipe_ClearIN();
	}

	/* Freeze mouse data pipe */
	Pipe_Freeze();
}
Exemplo n.º 4
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uint8_t Pipe_WaitUntilReady(void)
{
	#if (USB_STREAM_TIMEOUT_MS < 0xFF)
	uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;	
	#else
	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
	#endif
	
	for (;;)
	{
		if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
		{
			if (Pipe_IsINReceived())
			  return PIPE_READYWAIT_NoError;
		}
		else
		{
			if (Pipe_IsOUTReady())
			  return PIPE_READYWAIT_NoError;		
		}

		if (Pipe_IsStalled())
		  return PIPE_READYWAIT_PipeStalled;
		else if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_READYWAIT_DeviceDisconnected;
			  
		if (USB_INT_HasOccurred(USB_INT_HSOFI))
		{
			USB_INT_Clear(USB_INT_HSOFI);

			if (!(TimeoutMSRem--))
			  return PIPE_READYWAIT_Timeout;
		}
	}
}
Exemplo n.º 5
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bool MIDI_Host_ReceiveEventPacket(USB_ClassInfo_MIDI_Host_t* const MIDIInterfaceInfo,
                                  MIDI_EventPacket_t* const Event)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(MIDIInterfaceInfo->State.IsActive))
	  return HOST_SENDCONTROL_DeviceDisconnected;

	bool DataReady = false;

	Pipe_SelectPipe(MIDIInterfaceInfo->Config.DataINPipe.Address);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived())
	{
		if (Pipe_BytesInPipe())
		{
			Pipe_Read_Stream_LE(Event, sizeof(MIDI_EventPacket_t), NULL);
			DataReady = true;
		}

		if (!(Pipe_BytesInPipe()))
		  Pipe_ClearIN();
	}

	Pipe_Freeze();

	return DataReady;
}
Exemplo n.º 6
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void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
	  return;
	
	Pipe_SelectPipe(CDCInterfaceInfo->Config.NotificationPipeNumber);
	Pipe_SetPipeToken(PIPE_TOKEN_IN);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived())
	{
		USB_Request_Header_t Notification;
		Pipe_Read_Stream_LE(&Notification, sizeof(USB_Request_Header_t), NO_STREAM_CALLBACK);
		
		if ((Notification.bRequest      == NOTIF_SerialState) &&
		    (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)))
		{
			Pipe_Read_Stream_LE(&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
			                    sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
			                    NO_STREAM_CALLBACK);
			
		}

		Pipe_ClearIN();

		EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);
	}
	
	Pipe_Freeze();
}
Exemplo n.º 7
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/** Reads in and processes the next report from the attached device, displaying the report
 *  contents on the board LEDs and via the serial port.
 */
void ReadNextReport(void)
{
	USB_MouseReport_Data_t MouseReport;
	uint8_t                LEDMask = LEDS_NO_LEDS;

	/* Select mouse data pipe */
	Pipe_SelectPipe(MOUSE_DATA_IN_PIPE);

	/* Unfreeze keyboard data pipe */
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (!(Pipe_IsINReceived()))
	{
		/* No packet received (no movement), turn off LEDs */
		LEDs_SetAllLEDs(LEDS_NO_LEDS);

		/* Refreeze HID data IN pipe */
		Pipe_Freeze();

		return;
	}

	/* Ensure pipe contains data before trying to read from it */
	if (Pipe_IsReadWriteAllowed())
	{
		/* Read in mouse report data */
		Pipe_Read_Stream_LE(&MouseReport, sizeof(MouseReport));

		/* Alter status LEDs according to mouse X movement */
		if (MouseReport.X > 0)
		  LEDMask |= LEDS_LED1;
		else if (MouseReport.X < 0)
		  LEDMask |= LEDS_LED2;

		/* Alter status LEDs according to mouse Y movement */
		if (MouseReport.Y > 0)
		  LEDMask |= LEDS_LED3;
		else if (MouseReport.Y < 0)
		  LEDMask |= LEDS_LED4;

		/* Alter status LEDs according to mouse button position */
		if (MouseReport.Button)
		  LEDMask  = LEDS_ALL_LEDS;

		LEDs_SetAllLEDs(LEDMask);

		/* Print mouse report data through the serial port */
		printf_P(PSTR("dX:%2d dY:%2d Button:%d\r\n"), MouseReport.X,
													  MouseReport.Y,
													  MouseReport.Button);
	}

	/* Clear the IN endpoint, ready for next data packet */
	Pipe_ClearIN();

	/* Refreeze mouse data pipe */
	Pipe_Freeze();
}
Exemplo n.º 8
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/** Reads in and processes the next report from the attached device, displaying the report
 *  contents on the board LEDs and via the serial port.
 */
void ReadNextReport(void)
{
	USB_KeyboardReport_Data_t KeyboardReport;
		
	/* Select keyboard data pipe */
	Pipe_SelectPipe(KEYBOARD_DATAPIPE);	

	/* Unfreeze keyboard data pipe */
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (!(Pipe_IsINReceived()))
	{
		/* Refreeze HID data IN pipe */
		Pipe_Freeze();
			
		return;
	}
	
	/* Ensure pipe contains data before trying to read from it */
	if (Pipe_IsReadWriteAllowed())
	{
		/* Read in keyboard report data */
		Pipe_Read_Stream_LE(&KeyboardReport, sizeof(KeyboardReport));

		/* Indicate if the modifier byte is non-zero (special key such as shift is being pressed) */
		LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0);
		
		/* Check if a key has been pressed */
		if (KeyboardReport.KeyCode)
		{
			/* Toggle status LED to indicate keypress */
			LEDs_ToggleLEDs(LEDS_LED2);
				  
			char PressedKey = 0;

			/* Retrieve pressed key character if alphanumeric */
			if ((KeyboardReport.KeyCode[0] >= 0x04) && (KeyboardReport.KeyCode[0] <= 0x1D))
			  PressedKey = (KeyboardReport.KeyCode[0] - 0x04) + 'A';
			else if ((KeyboardReport.KeyCode[0] >= 0x1E) && (KeyboardReport.KeyCode[0] <= 0x27))
			  PressedKey = (KeyboardReport.KeyCode[0] - 0x1E) + '0';
			else if (KeyboardReport.KeyCode[0] == 0x2C)
			  PressedKey = ' ';						
			else if (KeyboardReport.KeyCode[0] == 0x28)
			  PressedKey = '\n';
				 
			/* Print the pressed key character out through the serial port if valid */
			if (PressedKey)
			  putchar(PressedKey);
		}
	}
		
	/* Clear the IN endpoint, ready for next data packet */
	Pipe_ClearIN();

	/* Refreeze keyboard data pipe */
	Pipe_Freeze();
}
Exemplo n.º 9
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/** Waits until the attached device is ready to accept data following a CBW, checking
 *  to ensure that the device has not stalled the transaction.
 *
 *  \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
 */
static uint8_t MassStore_WaitForDataReceived(void)
{
	uint16_t TimeoutMSRem = COMMAND_DATA_TIMEOUT_MS;

	/* Unfreeze the OUT pipe so that it can be checked */
	Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
	Pipe_Unfreeze();

	/* Select the IN data pipe for data reception */
	Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Wait until data received in the IN pipe */
	while (!(Pipe_IsINReceived()))
	{
		/* Check to see if a new frame has been issued (1ms elapsed) */
		if (USB_INT_HasOccurred(USB_INT_HSOFI))
		{
			/* Clear the flag and decrement the timeout period counter */
			USB_INT_Clear(USB_INT_HSOFI);
			TimeoutMSRem--;

			/* Check to see if the timeout period for the command has elapsed */
			if (!(TimeoutMSRem))
			  return PIPE_RWSTREAM_Timeout;
		}
	
		Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);

		/* Check if pipe stalled (command failed by device) */
		if (Pipe_IsStalled())
		{
			/* Clear the stall condition on the OUT pipe */
			MassStore_ClearPipeStall(MASS_STORE_DATA_OUT_PIPE);

			return PIPE_RWSTREAM_PipeStalled;
		}

		Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);

		/* Check if pipe stalled (command failed by device) */
		if (Pipe_IsStalled())
		{
			/* Clear the stall condition on the IN pipe */
			MassStore_ClearPipeStall(MASS_STORE_DATA_IN_PIPE);

			return PIPE_RWSTREAM_PipeStalled;
		}
		  
		/* Check to see if the device was disconnected, if so exit function */
		if (!(USB_IsConnected))
		  return PIPE_RWSTREAM_DeviceDisconnected;
	};

	return PIPE_RWSTREAM_NoError;
}
Exemplo n.º 10
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static uint8_t MS_Host_WaitForDataReceived(USB_ClassInfo_MS_Host_t* const MSInterfaceInfo)
{
	uint16_t TimeoutMSRem        = MS_COMMAND_DATA_TIMEOUT_MS;
	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();

	Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
	Pipe_Unfreeze();

	while (!(Pipe_IsINReceived()))
	{
		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();

		if (CurrentFrameNumber != PreviousFrameNumber)
		{
			PreviousFrameNumber = CurrentFrameNumber;

			if (!(TimeoutMSRem--))
			  return PIPE_RWSTREAM_Timeout;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
		Pipe_Unfreeze();

		if (Pipe_IsStalled())
		{
			USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataOUTPipeNumber);

			return PIPE_RWSTREAM_PipeStalled;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
		Pipe_Unfreeze();

		if (Pipe_IsStalled())
		{
			USB_Host_ClearPipeStall(MSInterfaceInfo->Config.DataINPipeNumber);

			return PIPE_RWSTREAM_PipeStalled;
		}

		if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_RWSTREAM_DeviceDisconnected;
	};

	Pipe_SelectPipe(MSInterfaceInfo->Config.DataINPipeNumber);
	Pipe_Freeze();

	Pipe_SelectPipe(MSInterfaceInfo->Config.DataOUTPipeNumber);
	Pipe_Freeze();

	return PIPE_RWSTREAM_NoError;
}
Exemplo n.º 11
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bool SI_Host_IsEventReceived(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo)
{
	bool IsEventReceived = false;

	if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))
	  return false;

	Pipe_SelectPipe(SIInterfaceInfo->Config.EventsPipe.Address);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived())
	  IsEventReceived = true;

	Pipe_Freeze();

	return IsEventReceived;
}
/** Task to set the configuration of the attached device after it has been enumerated. */
void AndroidHost_Task(void)
{
    if (USB_HostState != HOST_STATE_Configured)
        return;

    /* Select the data IN pipe */
    Pipe_SelectPipe(ANDROID_DATA_IN_PIPE);
    Pipe_Unfreeze();

    /* Check to see if a packet has been received */
    if (Pipe_IsINReceived())
    {
        /* Re-freeze IN pipe after the packet has been received */
        Pipe_Freeze();

        /* Check if data is in the pipe */
        if (Pipe_IsReadWriteAllowed())
        {
            uint8_t NextReceivedByte = Pipe_Read_8();
            uint8_t LEDMask          = LEDS_NO_LEDS;

            if (NextReceivedByte & 0x01)
                LEDMask |= LEDS_LED1;

            if (NextReceivedByte & 0x02)
                LEDMask |= LEDS_LED2;

            if (NextReceivedByte & 0x04)
                LEDMask |= LEDS_LED3;

            if (NextReceivedByte & 0x08)
                LEDMask |= LEDS_LED4;

            LEDs_SetAllLEDs(LEDMask);
        }
        else
        {
            /* Clear the pipe after all data in the packet has been read, ready for the next packet */
            Pipe_ClearIN();
        }
    }

    /* Re-freeze IN pipe after use */
    Pipe_Freeze();
}
Exemplo n.º 13
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/** Reads in and discards the next report from the attached device. */
void DiscardNextReport(void)
{
	/* Select and unfreeze HID data IN pipe */
	Pipe_SelectPipe(HID_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (!(Pipe_IsINReceived()))
	{
		/* Refreeze HID data IN pipe */
		Pipe_Freeze();
			
		return;
	}
		
	/* Clear the IN endpoint, ready for next data packet */
	Pipe_ClearIN();
	
	/* Refreeze HID data IN pipe */
	Pipe_Freeze();
}
Exemplo n.º 14
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void CDC_Host_USBTask(USB_ClassInfo_CDC_Host_t* const CDCInterfaceInfo)
{
	uint8_t portnum = CDCInterfaceInfo->Config.PortNumber;

	if ((USB_HostState[portnum] != HOST_STATE_Configured) || !(CDCInterfaceInfo->State.IsActive))
	  return;

	Pipe_SelectPipe(portnum,CDCInterfaceInfo->Config.NotificationPipeNumber);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived(portnum))
	{
		USB_Request_Header_t Notification;
		Pipe_Read_Stream_LE(portnum,&Notification, sizeof(USB_Request_Header_t), NULL);

		if ((Notification.bRequest      == CDC_NOTIF_SerialState) &&
		    (Notification.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE)))
		{
			Pipe_Read_Stream_LE(portnum,
								&CDCInterfaceInfo->State.ControlLineStates.DeviceToHost,
			                    sizeof(CDCInterfaceInfo->State.ControlLineStates.DeviceToHost),
			                    NULL);

			Pipe_ClearIN(portnum);

			EVENT_CDC_Host_ControLineStateChanged(CDCInterfaceInfo);
		}
		else
		{
			Pipe_ClearIN(portnum);
		}
	}

	Pipe_Freeze();

	#if !defined(NO_CLASS_DRIVER_AUTOFLUSH)
	CDC_Host_Flush(CDCInterfaceInfo);
	#endif
}
Exemplo n.º 15
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uint8_t Pipe_WaitUntilReady(void)
{
	#if (USB_STREAM_TIMEOUT_MS < 0xFF)
	uint8_t  TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
	#else
	uint16_t TimeoutMSRem = USB_STREAM_TIMEOUT_MS;
	#endif

	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();

	for (;;)
	{
		if (Pipe_GetPipeToken() == PIPE_TOKEN_IN)
		{
			if (Pipe_IsINReceived())
			  return PIPE_READYWAIT_NoError;
		}
		else
		{
			if (Pipe_IsOUTReady())
			  return PIPE_READYWAIT_NoError;
		}

		if (Pipe_IsStalled())
		  return PIPE_READYWAIT_PipeStalled;
		else if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_READYWAIT_DeviceDisconnected;

		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();

		if (CurrentFrameNumber != PreviousFrameNumber)
		{
			PreviousFrameNumber = CurrentFrameNumber;

			if (!(TimeoutMSRem--))
			  return PIPE_READYWAIT_Timeout;
		}
	}
}
static uint8_t USB_Host_WaitForIOS(const uint8_t WaitType)
{
	#if (USB_HOST_TIMEOUT_MS < 0xFF)
	uint8_t  TimeoutCounter = USB_HOST_TIMEOUT_MS;
	#else
	uint16_t TimeoutCounter = USB_HOST_TIMEOUT_MS;
	#endif

	while (!(((WaitType == USB_HOST_WAITFOR_SetupSent)  && Pipe_IsSETUPSent())  ||
	         ((WaitType == USB_HOST_WAITFOR_InReceived) && Pipe_IsINReceived()) ||
	         ((WaitType == USB_HOST_WAITFOR_OutReady)   && Pipe_IsOUTReady())))
	{
		uint8_t ErrorCode;

		if ((ErrorCode = USB_Host_WaitMS(1)) != HOST_WAITERROR_Successful)
		  return ErrorCode;

		if (!(TimeoutCounter--))
		  return HOST_SENDCONTROL_SoftwareTimeOut;
	}

	return HOST_SENDCONTROL_Successful;
}
Exemplo n.º 17
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/** Reads in and processes the next report from the attached device, displaying the report
 *  contents on the board LEDs and via the serial port.
 */
void ReadNextReport(void)
{
	/* Select and unfreeze HID data IN pipe */
	Pipe_SelectPipe(HID_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (!(Pipe_IsINReceived()))
	{
		/* Refreeze HID data IN pipe */
		Pipe_Freeze();

		return;
	}

	/* Ensure pipe contains data before trying to read from it */
	if (Pipe_IsReadWriteAllowed())
	{
		uint8_t ReportINData[Pipe_BytesInPipe()];

		/* Read in HID report data */
		Pipe_Read_Stream_LE(&ReportINData, sizeof(ReportINData));

		/* Print report data through the serial port */
		for (uint16_t CurrByte = 0; CurrByte < sizeof(ReportINData); CurrByte++)
		  printf_P(PSTR("0x%02X "), ReportINData[CurrByte]);

		puts_P(PSTR("\r\n"));
	}

	/* Clear the IN endpoint, ready for next data packet */
	Pipe_ClearIN();

	/* Refreeze HID data IN pipe */
	Pipe_Freeze();
}
Exemplo n.º 18
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/** Task to set the configuration of the attached device after it has been enumerated, and to read in
 *  data received from the attached CDC device and print it to the serial port.
 */
void CDC_Host_Task(void)
{
	uint8_t ErrorCode;

	switch (USB_HostState)
	{
		case HOST_STATE_Addressed:
			puts_P(PSTR("Getting Config Data.\r\n"));
		
			/* Get and process the configuration descriptor data */
			if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
			{
				if (ErrorCode == ControlError)
				  puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
				else
				  puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));

				printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);
				
				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}
			
			/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
			if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
			{
				printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
				                         " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			puts_P(PSTR("CDC Device Enumerated.\r\n"));

			USB_HostState = HOST_STATE_Configured;
			break;
		case HOST_STATE_Configured:
			/* Select and the data IN pipe */
			Pipe_SelectPipe(CDC_DATAPIPE_IN);
			Pipe_Unfreeze();

			/* Check to see if a packet has been received */
			if (Pipe_IsINReceived())
			{
				/* Re-freeze IN pipe after the packet has been received */
				Pipe_Freeze();

				/* Check if data is in the pipe */
				if (Pipe_IsReadWriteAllowed())
				{
					/* Get the length of the pipe data, and create a new buffer to hold it */
					uint16_t BufferLength = Pipe_BytesInPipe();
					uint8_t  Buffer[BufferLength];
					
					/* Read in the pipe data to the temporary buffer */
					Pipe_Read_Stream_LE(Buffer, BufferLength);
									
					/* Print out the buffer contents to the USART */
					for (uint16_t BufferByte = 0; BufferByte < BufferLength; BufferByte++)
					  putchar(Buffer[BufferByte]);
				}

				/* Clear the pipe after it is read, ready for the next packet */
				Pipe_ClearIN();
			}

			/* Re-freeze IN pipe after use */
			Pipe_Freeze();

			/* Select and unfreeze the notification pipe */
			Pipe_SelectPipe(CDC_NOTIFICATIONPIPE);
			Pipe_Unfreeze();
			
			/* Check if a packet has been received */
			if (Pipe_IsINReceived())
			{
				/* Discard the unused event notification */
				Pipe_ClearIN();
			}
			
			/* Freeze notification IN pipe after use */
			Pipe_Freeze();
						
			break;
	}
}
Exemplo n.º 19
0
/** Waits until the attached device is ready to accept data following a CBW, checking
 *  to ensure that the device has not stalled the transaction.
 *
 *  \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
 */
static uint8_t MassStore_WaitForDataReceived(void)
{
	uint16_t TimeoutMSRem        = COMMAND_DATA_TIMEOUT_MS;
	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();

	/* Select the IN data pipe for data reception */
	Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Wait until data received in the IN pipe */
	while (!(Pipe_IsINReceived()))
	{
		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();

		/* Check to see if a new frame has been issued (1ms elapsed) */
		if (CurrentFrameNumber != PreviousFrameNumber)
		{
			/* Save the new frame number and decrement the timeout period */
			PreviousFrameNumber = CurrentFrameNumber;
			TimeoutMSRem--;

			/* Check to see if the timeout period for the command has elapsed */
			if (!(TimeoutMSRem))
			  return PIPE_RWSTREAM_Timeout;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
		Pipe_Unfreeze();

		/* Check if pipe stalled (command failed by device) */
		if (Pipe_IsStalled())
		{
			/* Clear the stall condition on the OUT pipe */
			USB_Host_ClearPipeStall(MASS_STORE_DATA_OUT_PIPE);

			return PIPE_RWSTREAM_PipeStalled;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
		Pipe_Unfreeze();

		/* Check if pipe stalled (command failed by device) */
		if (Pipe_IsStalled())
		{
			/* Clear the stall condition on the IN pipe */
			USB_Host_ClearPipeStall(MASS_STORE_DATA_IN_PIPE);

			return PIPE_RWSTREAM_PipeStalled;
		}

		/* Check to see if the device was disconnected, if so exit function */
		if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_RWSTREAM_DeviceDisconnected;
	};

	Pipe_SelectPipe(MASS_STORE_DATA_IN_PIPE);
	Pipe_Freeze();

	Pipe_SelectPipe(MASS_STORE_DATA_OUT_PIPE);
	Pipe_Freeze();

	return PIPE_RWSTREAM_NoError;
}
Exemplo n.º 20
0
/** Function to receive a PIMA response container from the attached still image device.
 *
 *  \return A value from the Pipe_Stream_RW_ErrorCodes_t enum
 */
uint8_t SImage_ReceiveBlockHeader(void)
{
	uint16_t TimeoutMSRem        = COMMAND_DATA_TIMEOUT_MS;
	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();

	/* Unfreeze the data IN pipe */
	Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE);
	Pipe_Unfreeze();

	/* Wait until data received on the IN pipe */
	while (!(Pipe_IsINReceived()))
	{
		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();

		/* Check to see if a new frame has been issued (1ms elapsed) */
		if (CurrentFrameNumber != PreviousFrameNumber)
		{
			/* Save the new frame number and decrement the timeout period */
			PreviousFrameNumber = CurrentFrameNumber;
			TimeoutMSRem--;

			/* Check to see if the timeout period for the command has elapsed */
			if (!(TimeoutMSRem))
			  return PIPE_RWSTREAM_Timeout;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(SIMAGE_DATA_OUT_PIPE);
		Pipe_Unfreeze();

		/* Check if pipe stalled (command failed by device) */
		if (Pipe_IsStalled())
		{
			/* Clear the stall condition on the OUT pipe */
			USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());

			/* Return error code and break out of the loop */
			return PIPE_RWSTREAM_PipeStalled;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(SIMAGE_DATA_IN_PIPE);
		Pipe_Unfreeze();

		/* Check if pipe stalled (command failed by device) */
		if (Pipe_IsStalled())
		{
			/* Clear the stall condition on the IN pipe */
			USB_Host_ClearEndpointStall(Pipe_GetBoundEndpointAddress());

			/* Return error code */
			return PIPE_RWSTREAM_PipeStalled;
		}

		/* Check to see if the device was disconnected, if so exit function */
		if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_RWSTREAM_DeviceDisconnected;
	}

	/* Load in the response from the attached device */
	Pipe_Read_Stream_LE(&PIMA_ReceivedBlock, PIMA_COMMAND_SIZE(0), NULL);

	/* Check if the returned block type is a response block */
	if (PIMA_ReceivedBlock.Type == PIMA_CONTAINER_ResponseBlock)
	{
		/* Determine the size of the parameters in the block via the data length attribute */
		uint8_t ParamBytes = (PIMA_ReceivedBlock.DataLength - PIMA_COMMAND_SIZE(0));

		/* Check if the device has returned any parameters */
		if (ParamBytes)
		{
			/* Read the PIMA parameters from the data IN pipe */
			Pipe_Read_Stream_LE(&PIMA_ReceivedBlock.Params, ParamBytes, NULL);
		}

		/* Clear pipe bank after use */
		Pipe_ClearIN();
	}

	/* Freeze the IN pipe after use */
	Pipe_Freeze();

	return PIPE_RWSTREAM_NoError;
}
uint8_t AOA_Host_StartAccessoryMode(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
	uint8_t ErrorCode;
	
	uint16_t AccessoryProtocol;
	if ((ErrorCode = AOA_Host_GetAccessoryProtocol(&AccessoryProtocol)) != HOST_WAITERROR_Successful)
	  return ErrorCode;

	if (AccessoryProtocol != CPU_TO_LE16(AOA_PROTOCOL_AccessoryV1))
	  return AOA_ERROR_LOGICAL_CMD_FAILED;

	for (uint8_t PropertyIndex = 0; PropertyIndex < AOA_STRING_TOTAL_STRINGS; PropertyIndex++)
	{
		if ((ErrorCode = AOA_Host_SendPropertyString(AOAInterfaceInfo, PropertyIndex)) != HOST_WAITERROR_Successful)
		  return ErrorCode;
	}

	USB_ControlRequest = (USB_Request_Header_t)
	{
		.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
		.bRequest      = AOA_REQ_StartAccessoryMode,
		.wValue        = 0,
		.wIndex        = 0,
		.wLength       = 0,
	};

	Pipe_SelectPipe(PIPE_CONTROLPIPE);
	return USB_Host_SendControlRequest(NULL);	
}

static uint8_t AOA_Host_GetAccessoryProtocol(uint16_t* const Protocol)
{
	USB_ControlRequest = (USB_Request_Header_t)
	{
		.bmRequestType = (REQDIR_DEVICETOHOST | REQTYPE_VENDOR | REQREC_DEVICE),
		.bRequest      = AOA_REQ_GetAccessoryProtocol,
		.wValue        = 0,
		.wIndex        = 0,
		.wLength       = sizeof(uint16_t),
	};

	Pipe_SelectPipe(PIPE_CONTROLPIPE);
	return USB_Host_SendControlRequest(Protocol);
}

static uint8_t AOA_Host_SendPropertyString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
                                           const uint8_t StringIndex)
{	
	const char* String = ((char**)&AOAInterfaceInfo->Config.PropertyStrings)[StringIndex];
	
	if (String == NULL)
	  String = "";

	USB_ControlRequest = (USB_Request_Header_t)
	{
		.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
		.bRequest      = AOA_REQ_SendString,
		.wValue        = 0,
		.wIndex        = StringIndex,
		.wLength       = (strlen(String) + 1),
	};

	Pipe_SelectPipe(PIPE_CONTROLPIPE);
	return USB_Host_SendControlRequest((char*)String);
}

uint8_t AOA_Host_SendData(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
                          const uint8_t* const Buffer,
                          const uint16_t Length)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
	  return PIPE_READYWAIT_DeviceDisconnected;

	uint8_t ErrorCode;

	Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);

	Pipe_Unfreeze();
	ErrorCode = Pipe_Write_Stream_LE(Buffer, Length, NULL);
	Pipe_Freeze();

	return ErrorCode;
}

uint8_t AOA_Host_SendString(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
                            const char* const String)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
	  return PIPE_READYWAIT_DeviceDisconnected;

	uint8_t ErrorCode;

	Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);

	Pipe_Unfreeze();
	ErrorCode = Pipe_Write_Stream_LE(String, strlen(String), NULL);
	Pipe_Freeze();

	return ErrorCode;
}

uint8_t AOA_Host_SendByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
                          const uint8_t Data)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
	  return PIPE_READYWAIT_DeviceDisconnected;

	uint8_t ErrorCode;

	Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);
	Pipe_Unfreeze();

	if (!(Pipe_IsReadWriteAllowed()))
	{
		Pipe_ClearOUT();

		if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
		  return ErrorCode;
	}

	Pipe_Write_8(Data);
	Pipe_Freeze();

	return PIPE_READYWAIT_NoError;
}

uint16_t AOA_Host_BytesReceived(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
	  return 0;

	Pipe_SelectPipe(AOAInterfaceInfo->Config.DataINPipeNumber);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived())
	{
		if (!(Pipe_BytesInPipe()))
		{
			Pipe_ClearIN();
			Pipe_Freeze();
			return 0;
		}
		else
		{
			Pipe_Freeze();
			return Pipe_BytesInPipe();
		}
	}
	else
	{
		Pipe_Freeze();

		return 0;
	}
}

int16_t AOA_Host_ReceiveByte(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
	  return -1;

	int16_t ReceivedByte = -1;

	Pipe_SelectPipe(AOAInterfaceInfo->Config.DataINPipeNumber);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived())
	{
		if (Pipe_BytesInPipe())
		  ReceivedByte = Pipe_Read_8();

		if (!(Pipe_BytesInPipe()))
		  Pipe_ClearIN();
	}

	Pipe_Freeze();

	return ReceivedByte;
}

uint8_t AOA_Host_Flush(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo)
{
	if ((USB_HostState != HOST_STATE_Configured) || !(AOAInterfaceInfo->State.IsActive))
	  return PIPE_READYWAIT_DeviceDisconnected;

	uint8_t ErrorCode;

	Pipe_SelectPipe(AOAInterfaceInfo->Config.DataOUTPipeNumber);
	Pipe_Unfreeze();

	if (!(Pipe_BytesInPipe()))
	  return PIPE_READYWAIT_NoError;

	bool BankFull = !(Pipe_IsReadWriteAllowed());

	Pipe_ClearOUT();

	if (BankFull)
	{
		if ((ErrorCode = Pipe_WaitUntilReady()) != PIPE_READYWAIT_NoError)
		  return ErrorCode;

		Pipe_ClearOUT();
	}

	Pipe_Freeze();

	return PIPE_READYWAIT_NoError;
}

#if defined(FDEV_SETUP_STREAM)
void AOA_Host_CreateStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
                           FILE* const Stream)
{
	*Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar, _FDEV_SETUP_RW);
	fdev_set_udata(Stream, AOAInterfaceInfo);
}

void AOA_Host_CreateBlockingStream(USB_ClassInfo_AOA_Host_t* const AOAInterfaceInfo,
                                   FILE* const Stream)
{
	*Stream = (FILE)FDEV_SETUP_STREAM(AOA_Host_putchar, AOA_Host_getchar_Blocking, _FDEV_SETUP_RW);
	fdev_set_udata(Stream, AOAInterfaceInfo);
}
Exemplo n.º 22
0
/** Task to read in and processes the next report from the attached device, displaying the report
 *  contents on the board LEDs and via the serial port.
 */
void KeyboardHost_Task(void)
{
	if (USB_HostState != HOST_STATE_Configured)
	  return;

	/* Select keyboard data pipe */
	Pipe_SelectPipe(KEYBOARD_DATA_IN_PIPE);

	/* Unfreeze keyboard data pipe */
	Pipe_Unfreeze();

	/* Check to see if a packet has been received */
	if (!(Pipe_IsINReceived()))
	{
		/* Refreeze HID data IN pipe */
		Pipe_Freeze();

		return;
	}

	/* Ensure pipe contains data before trying to read from it */
	if (Pipe_IsReadWriteAllowed())
	{
		USB_KeyboardReport_Data_t KeyboardReport;

		/* Read in keyboard report data */
		Pipe_Read_Stream_LE(&KeyboardReport, sizeof(KeyboardReport), NULL);

		/* Indicate if the modifier byte is non-zero (special key such as shift is being pressed) */
		LEDs_ChangeLEDs(LEDS_LED1, (KeyboardReport.Modifier) ? LEDS_LED1 : 0);

		uint8_t KeyCode = KeyboardReport.KeyCode[0];

		/* Check if a key has been pressed */
		if (KeyCode)
		{
			/* Toggle status LED to indicate keypress */
			LEDs_ToggleLEDs(LEDS_LED2);

			char PressedKey = 0;

			/* Retrieve pressed key character if alphanumeric */
			if ((KeyCode >= HID_KEYBOARD_SC_A) && (KeyCode <= HID_KEYBOARD_SC_Z))
			{
				PressedKey = (KeyCode - HID_KEYBOARD_SC_A) + 'A';
			}
			else if ((KeyCode >= HID_KEYBOARD_SC_1_AND_EXCLAMATION) &
					 (KeyCode  < HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS))
			{
				PressedKey = (KeyCode - HID_KEYBOARD_SC_1_AND_EXCLAMATION) + '1';
			}
			else if (KeyCode == HID_KEYBOARD_SC_0_AND_CLOSING_PARENTHESIS)
			{
				PressedKey = '0';
			}
			else if (KeyCode == HID_KEYBOARD_SC_SPACE)
			{
				PressedKey = ' ';
			}
			else if (KeyCode == HID_KEYBOARD_SC_ENTER)
			{
				PressedKey = '\n';
			}

			/* Print the pressed key character out through the serial port if valid */
			if (PressedKey)
			  putchar(PressedKey);
		}
	}

	/* Clear the IN endpoint, ready for next data packet */
	Pipe_ClearIN();

	/* Refreeze keyboard data pipe */
	Pipe_Freeze();
}
Exemplo n.º 23
0
/** Task to set the configuration of the attached device after it has been enumerated, and to read and process
 *  the HID report descriptor and HID reports from the device and display the results onto the board LEDs.
 */
void Joystick_HID_Task(void)
{
	uint8_t ErrorCode;

	/* Switch to determine what user-application handled host state the host state machine is in */
	switch (USB_HostState)
	{
		case HOST_STATE_Addressed:
			puts_P(PSTR("Getting Config Data.\r\n"));

			/* Get and process the configuration descriptor data */
			if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
			{
				if (ErrorCode == ControlError)
				  puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
				else
				  puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));

				printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
			if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
			{
				printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
				                         " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			printf_P(PSTR("Processing HID Report (Size %d Bytes).\r\n"), HIDReportSize);

			/* Get and process the device's first HID report descriptor */
			if ((ErrorCode = GetHIDReportData()) != ParseSuccessful)
			{
				puts_P(PSTR(ESC_FG_RED "Report Parse Error.\r\n"));

				if (!(HIDReportInfo.TotalReportItems))
					puts_P(PSTR("Not a valid Joystick." ESC_FG_WHITE));
				else
					printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDMASK_USB_ERROR);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			puts_P(PSTR("Joystick Enumerated.\r\n"));

			USB_HostState = HOST_STATE_Configured;
			break;
		case HOST_STATE_Configured:
			/* Select and unfreeze joystick data pipe */
			Pipe_SelectPipe(JOYSTICK_DATA_IN_PIPE);
			Pipe_Unfreeze();

			/* Check to see if a packet has been received */
			if (Pipe_IsINReceived())
			{
				/* Check if data has been received from the attached joystick */
				if (Pipe_IsReadWriteAllowed())
				{
					/* Create buffer big enough for the report */
					uint8_t JoystickReport[Pipe_BytesInPipe()];

					/* Load in the joystick report */
					Pipe_Read_Stream_LE(JoystickReport, Pipe_BytesInPipe(), NULL);

					/* Process the read in joystick report from the device */
					ProcessJoystickReport(JoystickReport);
				}

				/* Clear the IN endpoint, ready for next data packet */
				Pipe_ClearIN();
			}

			/* Freeze joystick data pipe */
			Pipe_Freeze();
			break;
	}
}
Exemplo n.º 24
0
/** Task to set the configuration of the attached device after it has been enumerated. */
void Android_Host_Task(void)
{
	uint8_t ErrorCode;

	switch (USB_HostState)
	{
		case HOST_STATE_Addressed:
			puts_P(PSTR("Getting Device Data.\r\n"));

			/* Get and process the configuration descriptor data */
			ErrorCode = ProcessDeviceDescriptor();

			/* Save whether the Android device needs to be mode-switched later on */
			bool RequiresModeSwitch = (ErrorCode == NonAccessoryModeAndroidDevice);

			/* Error out if the device is not an Android device or an error occurred */
			if ((ErrorCode != AccessoryModeAndroidDevice) && !(RequiresModeSwitch))
			{
				if (ErrorCode == DevControlError)
				  puts_P(PSTR(ESC_FG_RED "Control Error (Get Device).\r\n"));
				else
				  puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));

				printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDS_LED1);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			printf_P(PSTR("Android Device Detected - %sAccessory mode.\r\n"), (RequiresModeSwitch ? "Non-" : ""));

			/* Set the device configuration to the first configuration (rarely do devices use multiple configurations) */
			if ((ErrorCode = USB_Host_SetDeviceConfiguration(1)) != HOST_SENDCONTROL_Successful)
			{
				printf_P(PSTR(ESC_FG_RED "Control Error (Set Configuration).\r\n"
				                         " -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDS_LED1);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			/* Check if a valid Android device was attached, but it is not current in Accessory mode */
			if (RequiresModeSwitch)
			{
				USB_ControlRequest = (USB_Request_Header_t)
				{
					.bmRequestType = (REQDIR_HOSTTODEVICE | REQTYPE_VENDOR | REQREC_DEVICE),
					.bRequest      = ANDROID_Req_StartAccessoryMode,
					.wValue        = 0,
					.wIndex        = 0,
					.wLength       = 0,
				};

				/* Send the control request for the Android device to switch to accessory mode */
				Pipe_SelectPipe(PIPE_CONTROLPIPE);
				USB_Host_SendControlRequest(NULL);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			puts_P(PSTR("Getting Config Data.\r\n"));

			/* Get and process the configuration descriptor data */
			if ((ErrorCode = ProcessConfigurationDescriptor()) != SuccessfulConfigRead)
			{
				if (ErrorCode == ControlError)
				  puts_P(PSTR(ESC_FG_RED "Control Error (Get Configuration).\r\n"));
				else
				  puts_P(PSTR(ESC_FG_RED "Invalid Device.\r\n"));

				printf_P(PSTR(" -- Error Code: %d\r\n" ESC_FG_WHITE), ErrorCode);

				/* Indicate error via status LEDs */
				LEDs_SetAllLEDs(LEDS_LED1);

				/* Wait until USB device disconnected */
				USB_HostState = HOST_STATE_WaitForDeviceRemoval;
				break;
			}

			puts_P(PSTR("Accessory Mode Android Enumerated.\r\n"));

			USB_HostState = HOST_STATE_Configured;
			break;
		case HOST_STATE_Configured:
			/* Select the data IN pipe */
			Pipe_SelectPipe(ANDROID_DATA_IN_PIPE);
			Pipe_Unfreeze();

			/* Check to see if a packet has been received */
			if (Pipe_IsINReceived())
			{
				/* Re-freeze IN pipe after the packet has been received */
				Pipe_Freeze();

				/* Check if data is in the pipe */
				if (Pipe_IsReadWriteAllowed())
				{
					uint8_t NextReceivedByte = Pipe_BytesInPipe();
					uint8_t LEDMask          = LEDS_NO_LEDS;

					if (NextReceivedByte & 0x01)
						LEDMask |= LEDS_LED1;

					if (NextReceivedByte & 0x02)
						LEDMask |= LEDS_LED2;

					if (NextReceivedByte & 0x04)
						LEDMask |= LEDS_LED3;

					if (NextReceivedByte & 0x08)
						LEDMask |= LEDS_LED4;

					LEDs_SetAllLEDs(LEDMask);
				}
				else
				{
					/* Clear the pipe after all data in the packet has been read, ready for the next packet */
					Pipe_ClearIN();
				}
			}

			/* Re-freeze IN pipe after use */
			Pipe_Freeze();
			break;
	}
}
Exemplo n.º 25
0
uint8_t SI_Host_ReceiveBlockHeader(USB_ClassInfo_SI_Host_t* const SIInterfaceInfo,
                                   PIMA_Container_t* const PIMAHeader)
{
	uint16_t TimeoutMSRem        = SI_COMMAND_DATA_TIMEOUT_MS;
	uint16_t PreviousFrameNumber = USB_Host_GetFrameNumber();

	if ((USB_HostState != HOST_STATE_Configured) || !(SIInterfaceInfo->State.IsActive))
	  return PIPE_RWSTREAM_DeviceDisconnected;

	Pipe_SelectPipe(SIInterfaceInfo->Config.DataINPipeNumber);
	Pipe_Unfreeze();

	while (!(Pipe_IsINReceived()))
	{
		uint16_t CurrentFrameNumber = USB_Host_GetFrameNumber();

		if (CurrentFrameNumber != PreviousFrameNumber)
		{
			PreviousFrameNumber = CurrentFrameNumber;

			if (!(TimeoutMSRem--))
			  return PIPE_RWSTREAM_Timeout;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(SIInterfaceInfo->Config.DataOUTPipeNumber);
		Pipe_Unfreeze();

		if (Pipe_IsStalled())
		{
			USB_Host_ClearPipeStall(SIInterfaceInfo->Config.DataOUTPipeNumber);
			return PIPE_RWSTREAM_PipeStalled;
		}

		Pipe_Freeze();
		Pipe_SelectPipe(SIInterfaceInfo->Config.DataINPipeNumber);
		Pipe_Unfreeze();

		if (Pipe_IsStalled())
		{
			USB_Host_ClearPipeStall(SIInterfaceInfo->Config.DataINPipeNumber);
			return PIPE_RWSTREAM_PipeStalled;
		}

		if (USB_HostState == HOST_STATE_Unattached)
		  return PIPE_RWSTREAM_DeviceDisconnected;
	}

	Pipe_Read_Stream_LE(PIMAHeader, PIMA_COMMAND_SIZE(0), NO_STREAM_CALLBACK);

	if (PIMAHeader->Type == PIMA_CONTAINER_ResponseBlock)
	{
		uint8_t ParamBytes = (PIMAHeader->DataLength - PIMA_COMMAND_SIZE(0));

		if (ParamBytes)
		  Pipe_Read_Stream_LE(&PIMAHeader->Params, ParamBytes, NO_STREAM_CALLBACK);

		Pipe_ClearIN();
	}

	Pipe_Freeze();

	return PIPE_RWSTREAM_NoError;
}
Exemplo n.º 26
0
/** Task to read in note on/off messages from the attached MIDI device and print it to the serial port.
 *  When the board joystick or buttons are pressed, note on/off messages are sent to the attached device.
 */
void MIDIHost_Task(void)
{
	if (USB_HostState != HOST_STATE_Configured)
	  return;

	Pipe_SelectPipe(MIDI_DATA_IN_PIPE);
	Pipe_Unfreeze();

	if (Pipe_IsINReceived())
	{
		MIDI_EventPacket_t MIDIEvent;

		Pipe_Read_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);

		if (!(Pipe_BytesInPipe()))
		  Pipe_ClearIN();

		bool NoteOnEvent  = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_ON));
		bool NoteOffEvent = (MIDIEvent.Event == MIDI_EVENT(0, MIDI_COMMAND_NOTE_OFF));

		if (NoteOnEvent || NoteOffEvent)
		{
			printf_P(PSTR("MIDI Note %s - Channel %d, Pitch %d, Velocity %d\r\n"), NoteOnEvent ? "On" : "Off",
																				   ((MIDIEvent.Data1 & 0x0F) + 1),
																				   MIDIEvent.Data2, MIDIEvent.Data3);
		}
	}
	
	Pipe_Freeze();

	Pipe_SelectPipe(MIDI_DATA_OUT_PIPE);
	Pipe_Unfreeze();

	if (Pipe_IsOUTReady())
	{
		uint8_t MIDICommand = 0;
		uint8_t MIDIPitch;

		static uint8_t PrevJoystickStatus;
		uint8_t JoystickStatus  = Joystick_GetStatus();
		uint8_t JoystickChanges = (JoystickStatus ^ PrevJoystickStatus);

		/* Get board button status - if pressed use channel 10 (percussion), otherwise use channel 1 */
		uint8_t Channel = ((Buttons_GetStatus() & BUTTONS_BUTTON1) ? MIDI_CHANNEL(10) : MIDI_CHANNEL(1));

		if (JoystickChanges & JOY_LEFT)
		{
			MIDICommand = ((JoystickStatus & JOY_LEFT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
			MIDIPitch   = 0x3C;
		}

		if (JoystickChanges & JOY_UP)
		{
			MIDICommand = ((JoystickStatus & JOY_UP)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
			MIDIPitch   = 0x3D;
		}

		if (JoystickChanges & JOY_RIGHT)
		{
			MIDICommand = ((JoystickStatus & JOY_RIGHT)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
			MIDIPitch   = 0x3E;
		}

		if (JoystickChanges & JOY_DOWN)
		{
			MIDICommand = ((JoystickStatus & JOY_DOWN)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
			MIDIPitch   = 0x3F;
		}

		if (JoystickChanges & JOY_PRESS)
		{
			MIDICommand = ((JoystickStatus & JOY_PRESS)? MIDI_COMMAND_NOTE_ON : MIDI_COMMAND_NOTE_OFF);
			MIDIPitch   = 0x3B;
		}

		/* Check if a MIDI command is to be sent */
		if (MIDICommand)
		{
			MIDI_EventPacket_t MIDIEvent = (MIDI_EventPacket_t)
				{
					.Event       = MIDI_EVENT(0, MIDICommand),

					.Data1       = MIDICommand | Channel,
					.Data2       = MIDIPitch,
					.Data3       = MIDI_STANDARD_VELOCITY,
				};

			/* Write the MIDI event packet to the pipe */
			Pipe_Write_Stream_LE(&MIDIEvent, sizeof(MIDIEvent), NULL);

			/* Send the data in the pipe to the device */
			Pipe_ClearOUT();
		}

		Pipe_Freeze();

		/* Save previous joystick value for next joystick change detection */
		PrevJoystickStatus = JoystickStatus;
	}
}