/*
 * fusb302 usb phy driver for type-c and PD
 *
 * Copyright (C) 2015, 2016 Fairchild Semiconductor Corporation
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. Seee the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */
#ifndef ALTERNATEMODES_H
#define	ALTERNATEMODES_H

#ifdef	__cplusplus
extern "C" {
#endif
    
#include "TypeC.h"
#include "platform.h"

#ifdef FSC_DEBUG
#include "Log.h"
#endif // FSC_DEBUG

//#define COMPLIANCE_MODES                            // Currently unused
#define tAlternateDRPSwap 40 * 10                   // DRP Swap every 40ms
    
extern DeviceReg_t              Registers;          // Variable holding the current status of the device registers
extern FSC_BOOL                 USBPDActive;        // Variable to indicate whether the USB PD state machine is active or not
extern FSC_BOOL                 USBPDEnabled;       // Variable to indicate whether USB PD is enabled (by the host)
extern FSC_U32                  PRSwapTimer;        // Timer used to bail out of a PR_Swap from the Type-C side if necessary
extern FSC_BOOL                 IsHardReset;        // Variable indicating that a Hard Reset is occurring
extern SourceOrSink             sourceOrSink;       // Are we currently a source or a sink?

extern USBTypeCPort             PortType;           // Variable indicating which type of port we are implementing
extern FSC_BOOL                 blnCCPinIsCC1;      // Flag to indicate if the CC1 pin has been detected as the CC pin
extern FSC_BOOL                 blnCCPinIsCC2;      // Flag to indicate if the CC2 pin has been detected as the CC pin
extern FSC_BOOL                 blnSMEnabled;       // Flag to indicate whether the TypeC state machine is enabled
extern ConnectionState          ConnState;          // Variable indicating the current connection state

#ifdef FSC_DEBUG
extern StateLog                 TypeCStateLog;      // Log for tracking state transitions and times
extern volatile FSC_U16         Timer_S;            // Tracks seconds elapsed for log timestamp
extern volatile FSC_U16         Timer_tms;          // Tracks tenths of milliseconds elapsed for log timestamp
#endif // FSC_DEBUG

#ifdef FSC_HAVE_ACCMODE
extern FSC_BOOL         blnAccSupport;              // Flag to indicate whether the port supports accessories
#endif // FSC_HAVE_ACCMODE

extern FSC_U16          StateTimer;                 // Timer used to validate proceeding to next state
extern FSC_U16          PDDebounce;                 // Timer used for first level debouncing
extern FSC_U16          CCDebounce;                 // Timer used for second level debouncing
extern FSC_U16          ToggleTimer;                // Timer used for CC swapping in the device
extern FSC_U16          DRPToggleTimer;             // Timer used for swapping from UnattachedSrc and UnattachedSnk
extern FSC_U16          OverPDDebounce;             // Timer used to ignore traffic less than tPDDebounce
extern CCTermType       CC1TermPrevious;            // Active CC1 termination value
extern CCTermType       CC2TermPrevious;            // Active CC2 termination value
extern CCTermType       CC1TermCCDebounce;          // Debounced CC1 termination value
extern CCTermType       CC2TermCCDebounce;          // Debounced CC2 termination value
extern CCTermType       CC1TermPDDebounce;
extern CCTermType       CC2TermPDDebounce;
extern CCTermType       CC1TermPDDebouncePrevious;
extern CCTermType       CC2TermPDDebouncePrevious;
extern USBTypeCCurrent  SinkCurrent;        // Variable to indicate the current capability we have receivedSetStateAlnternateUnattachedSetStateAlnternateUnattached(void);

void SetStateAlternateUnattached(void);
void StateMachineAlternateUnattached(void);

#ifdef FSC_HAVE_DRP
void SetStateAlternateDRP(void);
void StateMachineAlternateDRP(void);
void AlternateDRPSwap(void);
void AlternateDRPSourceSinkSwap(void);
#endif // FSC_HAVE_DRP

#ifdef FSC_HAVE_SRC
void SetStateAlternateUnattachedSource(void);
void StateMachineAlternateUnattachedSource(void);
#endif // FSC_HAVE_SRC

#ifdef FSC_HAVE_SNK
void SetStateAlternateUnattachedSink(void);
void StateMachineAlternateUnattachedSink(void);
#endif // FSC_HAVE_SNK

#ifdef FSC_HAVE_ACCMODE
void SetStateAlternateAudioAccessory(void);
#endif // FSC_HAVE_ACCMODE

CCTermType AlternateDecodeCCTerminationSource(void);


#ifdef	__cplusplus
}
#endif

#endif	/* COMPLIANCEMODES_H */