/*
 * Copyright 2012 Haiku, Inc. All rights reserved.
 * Distributed under the terms of the MIT License.
 *
 * Authors:
 *      Alexander von Gluck, kallisti5@unixzen.com
 */
#ifndef _DP_H
#define _DP_H


#include <Accelerant.h>
#include "dp_raw.h"
#include <GraphicsDefs.h>
#include <OS.h>


typedef struct {
        // Required configuration
        bool    valid;                  // Is valid DP information
        uint32  auxPin;                 // Normally GPIO pin on GPU
        uint8   revision;               // DP Revision from DPCD

        int             laneCount;
        uint32  linkRate;               // DP Link Speed 162000, 270000, 540000

        // Internal State information
        uint8   linkStatus[DP_LINK_STATUS_SIZE];

        uint8   trainingAttempts;
        uint8   trainingSet[4];
        int     trainingReadInterval;

} dp_info;

typedef struct {
        uint32  address;
        uint8   request;
        uint8   reply;
        void*   buffer;
        size_t  size;
} dp_aux_msg;

uint32 dp_encode_link_rate(uint32 linkRate);
uint32 dp_decode_link_rate(uint32 rawLinkRate);

uint32 dp_get_pixel_clock_max(int linkRate, int laneCount, int bpp);


#endif /* _DP_H */