path: root/drivers/usb/misc/sisusbvga/sisusb_init.c

/*
 * sisusb - usb kernel driver for SiS315(E) based USB2VGA dongles
 *
 * Display mode initializing code
 *
 * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria
 *
 * If distributed as part of the Linux kernel, this code is licensed under the
 * terms of the GPL v2.
 *
 * Otherwise, the following license terms apply:
 *
 * * Redistribution and use in source and binary forms, with or without
 * * modification, are permitted provided that the following conditions
 * * are met:
 * * 1) Redistributions of source code must retain the above copyright
 * *    notice, this list of conditions and the following disclaimer.
 * * 2) Redistributions in binary form must reproduce the above copyright
 * *    notice, this list of conditions and the following disclaimer in the
 * *    documentation and/or other materials provided with the distribution.
 * * 3) The name of the author may not be used to endorse or promote products
 * *    derived from this software without specific prior written permission.
 * *
 * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 * Author: 	Thomas Winischhofer <thomas@winischhofer.net>
 *
 */

#include <linux/config.h>
#include <linux/version.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/poll.h>
#include <linux/init.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/kref.h>

#include "sisusb.h"

#ifdef INCL_SISUSB_CON

#include "sisusb_init.h"

/*********************************************/
/*         POINTER INITIALIZATION            */
/*********************************************/

static void
SiSUSB_InitPtr(struct SiS_Private *SiS_Pr)
{
	SiS_Pr->SiS_ModeResInfo   = SiSUSB_ModeResInfo;
	SiS_Pr->SiS_StandTable    = SiSUSB_StandTable;

	SiS_Pr->SiS_SModeIDTable  = SiSUSB_SModeIDTable;
	SiS_Pr->SiS_EModeIDTable  = SiSUSB_EModeIDTable;
	SiS_Pr->SiS_RefIndex      = SiSUSB_RefIndex;
	SiS_Pr->SiS_CRT1Table     = SiSUSB_CRT1Table;

	SiS_Pr->SiS_VCLKData      = SiSUSB_VCLKData;
}

/*********************************************/
/*            HELPER: Get ModeID             */
/*********************************************/

unsigned short
SiSUSB_GetModeID(int HDisplay, int VDisplay, int Depth)
{
	unsigned short ModeIndex = 0;

	switch (HDisplay)
	{
		case 320:
			if (VDisplay == 200)
				ModeIndex = ModeIndex_320x200[Depth];
			else if (VDisplay == 240)
				ModeIndex = ModeIndex_320x240[Depth];
			break;
		case 400:
			if (VDisplay == 300)
				ModeIndex = ModeIndex_400x300[Depth];
			break;
		case 512:
			if (VDisplay == 384)
				ModeIndex = ModeIndex_512x384[Depth];
			break;
		case 640:
			if (VDisplay == 480)
				ModeIndex = ModeIndex_640x480[Depth];
			else if (VDisplay == 400)
				ModeIndex = ModeIndex_640x400[Depth];
			break;
		case 720:
			if (VDisplay == 480)
				ModeIndex = ModeIndex_720x480[Depth];
			else if (VDisplay == 576)
				ModeIndex = ModeIndex_720x576[Depth];
			break;
		case 768:
			if (VDisplay == 576)
				ModeIndex = ModeIndex_768x576[Depth];
			break;
		case 800:
			if (VDisplay == 600)
				ModeIndex = ModeIndex_800x600[Depth];
			else if (VDisplay == 480)
				ModeIndex = ModeIndex_800x480[Depth];
			break;
		case 848:
			if (VDisplay == 480)
				ModeIndex = ModeIndex_848x480[Depth];
			break;
		case 856:
			if (VDisplay == 480)
				ModeIndex = ModeIndex_856x480[Depth];
			break;
		case 960:
			if (VDisplay == 540)
				ModeIndex = ModeIndex_960x540[Depth];
			else if (VDisplay == 600)
				ModeIndex = ModeIndex_960x600[Depth];
			break;
		case 1024:
			if (VDisplay == 576)
				ModeIndex = ModeIndex_1024x576[Depth];
			else if (VDisplay == 768)
				ModeIndex = ModeIndex_1024x768[Depth];
			break;
		case 1152:
			if (VDisplay == 864)
				ModeIndex = ModeIndex_1152x864[Depth];
			break;
		case 1280:
			switch (VDisplay) {
				case 720:
					ModeIndex = ModeIndex_1280x720[Depth];
					break;
				case 768:
					ModeIndex = ModeIndex_1280x768[Depth];
					break;
				case 1024:
					ModeIndex