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# This file is dual licensed under the terms of the Apache License, Version
# 2.0, and the BSD License. See the LICENSE file in the root of this repository
# for complete details.

from __future__ import absolute_import, division, print_function

INCLUDES = """
#include <openssl/asn1.h>
"""

TYPES = """
typedef int... time_t;

typedef ... ASN1_INTEGER;

struct asn1_string_st {
    int length;
    int type;
    unsigned char *data;
    long flags;
};

typedef struct asn1_string_st ASN1_OCTET_STRING;
typedef struct asn1_string_st ASN1_IA5STRING;
typedef struct asn1_string_st ASN1_BIT_STRING;
typedef struct asn1_string_st ASN1_TIME;
typedef ... ASN1_OBJECT;
typedef struct asn1_string_st ASN1_STRING;
typedef struct asn1_string_st ASN1_UTF8STRING;
typedef ... ASN1_TYPE;
typedef ... ASN1_GENERALIZEDTIME;
typedef ... ASN1_ENUMERATED;
typedef ... ASN1_NULL;

static const int V_ASN1_GENERALIZEDTIME;

static const int MBSTRING_UTF8;
"""

FUNCTIONS = """
void ASN1_OBJECT_free(ASN1_OBJECT *);

/*  ASN1 STRING */
unsigned char *ASN1_STRING_data(ASN1_STRING *);
int ASN1_STRING_set(ASN1_STRING *, const void *, int);

/*  ASN1 OCTET STRING */
ASN1_OCTET_STRING *ASN1_OCTET_STRING_new(void);
void ASN1_OCTET_STRING_free(ASN1_OCTET_STRING *);
int ASN1_OCTET_STRING_set(ASN1_OCTET_STRING *, const unsigned char *, int);

/* ASN1 IA5STRING */
ASN1_IA5STRING *ASN1_IA5STRING_new(void);

/*  ASN1 INTEGER */
void ASN1_INTEGER_free(ASN1_INTEGER *);
int ASN1_INTEGER_set(ASN1_INTEGER *, long);

/*  ASN1 TIME */
ASN1_TIME *ASN1_TIME_new(void);
void ASN1_TIME_free(ASN1_TIME *);
ASN1_TIME *ASN1_TIME_set(ASN1_TIME *, time_t);
int ASN1_TIME_set_string(ASN1_TIME *, const char *);

/*  ASN1 GENERALIZEDTIME */
ASN1_GENERALIZEDTIME *ASN1_GENERALIZEDTIME_set(ASN1_GENERALIZEDTIME *, time_t);
void ASN1_GENERALIZEDTIME_free(ASN1_GENERALIZEDTIME *);

/*  ASN1 ENUMERATED */
ASN1_ENUMERATED *ASN1_ENUMERATED_new(void);
void ASN1_ENUMERATED_free(ASN1_ENUMERATED *);
int ASN1_ENUMERATED_set(ASN1_ENUMERATED *, long);

int ASN1_BIT_STRING_set_bit(ASN1_BIT_STRING *, int, int);
/* These became const ASN1_* in 1.1.0 */
int ASN1_STRING_type(ASN1_STRING *);
int ASN1_STRING_to_UTF8(unsigned char **, ASN1_STRING *);
long ASN1_ENUMERATED_get(ASN1_ENUMERATED *);
int i2a_ASN1_INTEGER(BIO *, ASN1_INTEGER *);

/* This became const ASN1_TIME in 1.1.0f */
ASN1_GENERALIZEDTIME *ASN1_TIME_to_generalizedtime(ASN1_TIME *,
                                                   ASN1_GENERALIZEDTIME **);

ASN1_UTF8STRING *ASN1_UTF8STRING_new(void);
void ASN1_UTF8STRING_free(ASN1_UTF8STRING *);

ASN1_BIT_STRING *ASN1_BIT_STRING_new(void);
void ASN1_BIT_STRING_free(ASN1_BIT_STRING *);
/* This is not a macro, but is const on some versions of OpenSSL */
int ASN1_BIT_STRING_get_bit(ASN1_BIT_STRING *, int);

int ASN1_STRING_length(ASN1_STRING *);
int ASN1_STRING_set_default_mask_asc(char *);

BIGNUM *ASN1_INTEGER_to_BN(ASN1_INTEGER *, BIGNUM *);
ASN1_INTEGER *BN_to_ASN1_INTEGER(BIGNUM *, ASN1_INTEGER *);

int i2d_ASN1_TYPE(ASN1_TYPE *, unsigned char **);
ASN1_TYPE *d2i_ASN1_TYPE(ASN1_TYPE **, const unsigned char **, long);

ASN1_NULL *ASN1_NULL_new(void);
"""

CUSTOMIZATIONS = """
"""
Literal.String.Other */ .highlight .sr { color: #008800; background-color: #fff0ff } /* Literal.String.Regex */ .highlight .s1 { color: #dd2200; background-color: #fff0f0 } /* Literal.String.Single */ .highlight .ss { color: #aa6600; background-color: #fff0f0 } /* Literal.String.Symbol */ .highlight .bp { color: #003388 } /* Name.Builtin.Pseudo */ .highlight .fm { color: #0066bb; font-weight: bold } /* Name.Function.Magic */ .highlight .vc { color: #336699 } /* Name.Variable.Class */ .highlight .vg { color: #dd7700 } /* Name.Variable.Global */ .highlight .vi { color: #3333bb } /* Name.Variable.Instance */ .highlight .vm { color: #336699 } /* Name.Variable.Magic */ .highlight .il { color: #0000DD; font-weight: bold } /* Literal.Number.Integer.Long */
/*
             LUFA Library
     Copyright (C) Dean Camera, 2017.

  dean [at] fourwalledcubicle [dot] com
           www.lufa-lib.org
*/

/*
  Copyright 2017  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 disclaims 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
 *
 *  Main source file for the VirtualSerialMouse demo. This file contains the main tasks of
 *  the demo and is responsible for the initial application hardware configuration.
 */

#include "VirtualSerialMouse.h"

/** LUFA CDC Class driver interface configuration and state information. This structure is
 *  passed to all CDC Class driver functions, so that multiple instances of the same class
 *  within a device can be differentiated from one another.
 */
USB_ClassInfo_CDC_Device_t VirtualSerial_CDC_Interface =
	{
		.Config =
			{
				.ControlInterfaceNumber         = INTERFACE_ID_CDC_CCI,
				.DataINEndpoint                 =
					{
						.Address                = CDC_TX_EPADDR,
						.Size                   = CDC_TXRX_EPSIZE,
						.Banks                  = 1,
					},
				.DataOUTEndpoint                =
					{
						.Address                = CDC_RX_EPADDR,
						.Size                   = CDC_TXRX_EPSIZE,
						.Banks                  = 1,
					},
				.NotificationEndpoint           =
					{
						.Address                = CDC_NOTIFICATION_EPADDR,
						.Size                   = CDC_NOTIFICATION_EPSIZE,
						.Banks                  = 1,
					},
			},
	};

/** Buffer to hold the previously generated Mouse HID report, for comparison purposes inside the HID class driver. */
static uint8_t PrevMouseHIDReportBuffer[sizeof(USB_MouseReport_Data_t)];

/** LUFA HID Class driver interface configuration and state information. This structure is
 *  passed to all HID Class driver functions, so that multiple instances of the same class
 *  within a device can be differentiated from one another.
 */
USB_ClassInfo_HID_Device_t Mouse_HID_Interface =
	{
		.Config =
			{
				.InterfaceNumber                = INTERFACE_ID_Mouse,
				.ReportINEndpoint               =
					{
						.Address                = MOUSE_EPADDR,
						.Size                   = MOUSE_EPSIZE,
						.Banks                  = 1,
					},
				.PrevReportINBuffer             = PrevMouseHIDReportBuffer,
				.PrevReportINBufferSize         = sizeof(PrevMouseHIDReportBuffer),
			},
	};


/** Main program entry point. This routine contains the overall program flow, including initial
 *  setup of all components and the main program loop.
 */
int main(void)
{
	SetupHardware();

	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
	GlobalInterruptEnable();

	for (;;)
	{
		CheckJoystickMovement();

		/* Must throw away unused bytes from the host, or it will lock up while waiting for the device */
		CDC_Device_ReceiveByte(&VirtualSerial_CDC_Interface);

		CDC_Device_USBTask(&VirtualSerial_CDC_Interface);
		HID_Device_USBTask(&Mouse_HID_Interface);
		USB_USBTask();
	}
}

/** Configures the board hardware and chip peripherals for the demo's functionality. */
void SetupHardware(void)
{
#if (ARCH == ARCH_AVR8)
	/* Disable watchdog if enabled by bootloader/fuses */
	MCUSR &= ~(1 << WDRF);
	wdt_disable();

	/* Disable clock division */
	clock_prescale_set(clock_div_1);
#elif (ARCH == ARCH_XMEGA)
	/* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
	XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
	XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);

	/* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
	XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
	XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);

	PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
#endif

	/* Hardware Initialization */
	Joystick_Init();
	LEDs_Init();
	USB_Init();
}

/** Checks for changes in the position of the board joystick, sending strings to the host upon each change. */
void CheckJoystickMovement(void)
{
	uint8_t     JoyStatus_LCL = Joystick_GetStatus();
	char*       ReportString  = NULL;
	static bool ActionSent    = false;

	if (JoyStatus_LCL & JOY_UP)
	  ReportString = "Joystick Up\r\n";
	else if (JoyStatus_LCL & JOY_DOWN)
	  ReportString = "Joystick Down\r\n";
	else if (JoyStatus_LCL & JOY_LEFT)
	  ReportString = "Joystick Left\r\n";
	else if (JoyStatus_LCL & JOY_RIGHT)
	  ReportString = "Joystick Right\r\n";
	else if (JoyStatus_LCL & JOY_PRESS)
	  ReportString = "Joystick Pressed\r\n";
	else
	  ActionSent = false;

	if ((ReportString != NULL) && (ActionSent == false))
	{
		ActionSent = true;

		CDC_Device_SendString(&VirtualSerial_CDC_Interface, ReportString);
	}
}

/** Event handler for the library USB Connection event. */
void EVENT_USB_Device_Connect(void)
{
	LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
}

/** Event handler for the library USB Disconnection event. */
void EVENT_USB_Device_Disconnect(void)
{
	LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
}

/** Event handler for the library USB Configuration Changed event. */
void EVENT_USB_Device_ConfigurationChanged(void)
{
	bool ConfigSuccess = true;

	ConfigSuccess &= HID_Device_ConfigureEndpoints(&Mouse_HID_Interface);
	ConfigSuccess &= CDC_Device_ConfigureEndpoints(&VirtualSerial_CDC_Interface);

	USB_Device_EnableSOFEvents();

	LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
}

/** Event handler for the library USB Control Request reception event. */
void EVENT_USB_Device_ControlRequest(void)
{
	CDC_Device_ProcessControlRequest(&VirtualSerial_CDC_Interface);
	HID_Device_ProcessControlRequest(&Mouse_HID_Interface);
}

/** Event handler for the USB device Start Of Frame event. */
void EVENT_USB_Device_StartOfFrame(void)
{
	HID_Device_MillisecondElapsed(&Mouse_HID_Interface);
}

/** HID class driver callback function for the creation of HID reports to the host.
 *
 *  \param[in]     HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 *  \param[in,out] ReportID    Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
 *  \param[in]     ReportType  Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
 *  \param[out]    ReportData  Pointer to a buffer where the created report should be stored
 *  \param[out]    ReportSize  Number of bytes written in the report (or zero if no report is to be sent)
 *
 *  \return Boolean \c true to force the sending of the report, \c false to let the library determine if it needs to be sent
 */
bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
                                         uint8_t* const ReportID,
                                         const uint8_t ReportType,
                                         void* ReportData,
                                         uint16_t* const ReportSize)
{
	USB_MouseReport_Data_t* MouseReport = (USB_MouseReport_Data_t*)ReportData;

	uint8_t JoyStatus_LCL    = Joystick_GetStatus();
	uint8_t ButtonStatus_LCL = Buttons_GetStatus();

	if (JoyStatus_LCL & JOY_UP)
	  MouseReport->Y = -1;
	else if (JoyStatus_LCL & JOY_DOWN)
	  MouseReport->Y =  1;

	if (JoyStatus_LCL & JOY_LEFT)
	  MouseReport->X = -1;
	else if (JoyStatus_LCL & JOY_RIGHT)
	  MouseReport->X =  1;

	if (JoyStatus_LCL & JOY_PRESS)
	  MouseReport->Button |= (1 << 0);

	if (ButtonStatus_LCL & BUTTONS_BUTTON1)
	  MouseReport->Button |= (1 << 1);

	*ReportSize = sizeof(USB_MouseReport_Data_t);
	return true;
}

/** HID class driver callback function for the processing of HID reports from the host.
 *
 *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 *  \param[in] ReportID    Report ID of the received report from the host
 *  \param[in] ReportType  The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature
 *  \param[in] ReportData  Pointer to a buffer where the received report has been stored
 *  \param[in] ReportSize  Size in bytes of the received HID report
 */
void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
                                          const uint8_t ReportID,
                                          const uint8_t ReportType,
                                          const void* ReportData,
                                          const uint16_t ReportSize)
{
	// Unused (but mandatory for the HID class driver) in this demo, since there are no Host->Device reports
}

/** CDC class driver callback function the processing of changes to the virtual
 *  control lines sent from the host..
 *
 *  \param[in] CDCInterfaceInfo  Pointer to the CDC class interface configuration structure being referenced
 */
void EVENT_CDC_Device_ControLineStateChanged(USB_ClassInfo_CDC_Device_t *const CDCInterfaceInfo)
{
	/* You can get changes to the virtual CDC lines in this callback; a common
	   use-case is to use the Data Terminal Ready (DTR) flag to enable and
	   disable CDC communications in your application when set to avoid the
	   application blocking while waiting for a host to become ready and read
	   in the pending data from the USB endpoints.
	*/
	bool HostReady = (CDCInterfaceInfo->State.ControlLineStates.HostToDevice & CDC_CONTROL_LINE_OUT_DTR) != 0;
}