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/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */
/*
 * sisfb.h - definitions for the SiS framebuffer driver
 *
 * Copyright (C) 2001-2005 by Thomas Winischhofer, Vienna, Austria.
 *
 * 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 2 of the named 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. See 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, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
 */

#ifndef _LINUX_SISFB_H_
#define _LINUX_SISFB_H_

#include <linux/types.h>
#include <asm/ioctl.h>

/**********************************************/
/*                   PUBLIC                   */
/**********************************************/

/* vbflags, public (others in sis.h) */
#define CRT2_DEFAULT		0x00000001
#define CRT2_LCD		0x00000002
#define CRT2_TV			0x00000004
#define CRT2_VGA		0x00000008
#define TV_NTSC			0x00000010
#define TV_PAL			0x00000020
#define TV_HIVISION		0x00000040
#define TV_YPBPR		0x00000080
#define TV_AVIDEO		0x00000100
#define TV_SVIDEO		0x00000200
#define TV_SCART		0x00000400
#define TV_PALM			0x00001000
#define TV_PALN			0x00002000
#define TV_NTSCJ		0x00001000
#define TV_CHSCART		0x00008000
#define TV_CHYPBPR525I		0x00010000
#define CRT1_VGA		0x00000000
#define CRT1_LCDA		0x00020000
#define VGA2_CONNECTED          0x00040000
#define VB_DISPTYPE_CRT1	0x00080000	/* CRT1 connected and used */
#define VB_SINGLE_MODE		0x20000000	/* CRT1 or CRT2; determined by DISPTYPE_CRTx */
#define VB_MIRROR_MODE		0x40000000	/* CRT1 + CRT2 identical (mirror mode) */
#define VB_DUALVIEW_MODE	0x80000000	/* CRT1 + CRT2 independent (dual head mode) */

/* Aliases: */
#define CRT2_ENABLE		(CRT2_LCD | CRT2_TV | CRT2_VGA)
#define TV_STANDARD		(TV_NTSC | TV_PAL | TV_PALM | TV_PALN | TV_NTSCJ)
#define TV_INTERFACE		(TV_AVIDEO|TV_SVIDEO|TV_SCART|TV_HIVISION|TV_YPBPR|TV_CHSCART|TV_CHYPBPR525I)

/* Only if TV_YPBPR is set: */
#define TV_YPBPR525I		TV_NTSC
#define TV_YPBPR525P		TV_PAL
#define TV_YPBPR750P		TV_PALM
#define TV_YPBPR1080I		TV_PALN
#define TV_YPBPRALL 		(TV_YPBPR525I | TV_YPBPR525P | TV_YPBPR750P | TV_YPBPR1080I)

#define VB_DISPTYPE_DISP2	CRT2_ENABLE
#define VB_DISPTYPE_CRT2	CRT2_ENABLE
#define VB_DISPTYPE_DISP1	VB_DISPTYPE_CRT1
#define VB_DISPMODE_SINGLE	VB_SINGLE_MODE
#define VB_DISPMODE_MIRROR	VB_MIRROR_MODE
#define VB_DISPMODE_DUAL	VB_DUALVIEW_MODE
#define VB_DISPLAY_MODE		(SINGLE_MODE | MIRROR_MODE | DUALVIEW_MODE)

/* Structure argument for SISFB_GET_INFO ioctl  */
struct sisfb_info {
	__u32	sisfb_id;		/* for identifying sisfb */
#ifndef SISFB_ID
#define SISFB_ID	  0x53495346    /* Identify myself with 'SISF' */
#endif
	__u32   chip_id;		/* PCI-ID of detected chip */
	__u32   memory;			/* total video memory in KB */
	__u32   heapstart;		/* heap start offset in KB */
	__u8    fbvidmode;		/* current sisfb mode */

__u8	sisfb_version;
	__u8	sisfb_revision;
	__u8	sisfb_patchlevel;

__u8	sisfb_caps;		/* sisfb capabilities */

__u32	sisfb_tqlen;		/* turbo queue length (in KB) */

__u32	sisfb_pcibus;		/* The card's PCI ID */
	__u32	sisfb_pcislot;
	__u32	sisfb_pcifunc;

__u8	sisfb_lcdpdc;		/* PanelDelayCompensation */

__u8	sisfb_lcda;		/* Detected status of LCDA for low res/text modes */

__u32	sisfb_vbflags;
	__u32	sisfb_currentvbflags;

__u32	sisfb_scalelcd;
	__u32	sisfb_specialtiming;

__u8	sisfb_haveemi;
	__u8	sisfb_emi30,sisfb_emi31,sisfb_emi32,sisfb_emi33;
	__u8	sisfb_haveemilcd;

__u8	sisfb_lcdpdca;		/* PanelDelayCompensation for LCD-via-CRT1 */

__u16	sisfb_tvxpos, sisfb_tvypos;	/* Warning: Values + 32 ! */

__u32	sisfb_heapsize;		/* heap size (in KB) */
	__u32	sisfb_videooffset;	/* Offset of viewport in video memory (in bytes) */

__u32	sisfb_curfstn;		/* currently running FSTN/DSTN mode */
	__u32	sisfb_curdstn;

__u16	sisfb_pci_vendor;	/* PCI vendor (SiS or XGI) */

__u32	sisfb_vbflags2;		/* ivideo->vbflags2 */

__u8	sisfb_can_post;		/* sisfb can POST this card */
	__u8	sisfb_card_posted;	/* card is POSTED */
	__u8	sisfb_was_boot_device;	/* This card was the boot video device (ie is primary) */

__u8	reserved[183];		/* for future use */
};

#define SISFB_CMD_GETVBFLAGS	0x55AA0001	/* no arg; result[1] = vbflags */
#define SISFB_CMD_SWITCHCRT1	0x55AA0010	/* arg[0]: 99 = query, 0 = off, 1 = on */
/* more to come */

#define SISFB_CMD_ERR_OK	0x80000000	/* command succeeded */
#define SISFB_CMD_ERR_LOCKED	0x80000001	/* sisfb is locked */
#define SISFB_CMD_ERR_EARLY	0x80000002	/* request before sisfb took over gfx system */
#define SISFB_CMD_ERR_NOVB	0x80000003	/* No video bridge */
#define SISFB_CMD_ERR_NOCRT2	0x80000004	/* can't change CRT1 status, CRT2 disabled */
/* more to come */
#define SISFB_CMD_ERR_UNKNOWN   0x8000ffff	/* Unknown command */
#define SISFB_CMD_ERR_OTHER	0x80010000	/* Other error */

/* Argument for SISFB_CMD ioctl */
struct sisfb_cmd {
	__u32  sisfb_cmd;
	__u32  sisfb_arg[16];
	__u32  sisfb_result[4];
};

/* Additional IOCTLs for communication sisfb <> X driver                */
/* If changing this, vgatypes.h must also be changed (for X driver)    */

/* ioctl for identifying and giving some info (esp. memory heap start) */
#define SISFB_GET_INFO_SIZE	_IOR(0xF3,0x00,__u32)
#define SISFB_GET_INFO		_IOR(0xF3,0x01,struct sisfb_info)

/* ioctrl to get current vertical retrace status */
#define SISFB_GET_VBRSTATUS	_IOR(0xF3,0x02,__u32)

/* ioctl to enable/disable panning auto-maximize (like nomax parameter) */
#define SISFB_GET_AUTOMAXIMIZE	_IOR(0xF3,0x03,__u32)
#define SISFB_SET_AUTOMAXIMIZE	_IOW(0xF3,0x03,__u32)

/* ioctls to relocate TV output (x=D[31:16], y=D[15:0], + 32)*/
#define SISFB_GET_TVPOSOFFSET	_IOR(0xF3,0x04,__u32)
#define SISFB_SET_TVPOSOFFSET	_IOW(0xF3,0x04,__u32)

/* ioctl for internal sisfb commands (sisfbctrl) */
#define SISFB_COMMAND		_IOWR(0xF3,0x05,struct sisfb_cmd)

/* ioctl for locking sisfb (no register access during lock) */
/* As of now, only used to avoid register access during
 * the ioctls listed above.
 */
#define SISFB_SET_LOCK		_IOW(0xF3,0x06,__u32)

/* ioctls 0xF3 up to 0x3F reserved for sisfb */

/****************************************************************/
/* The following are deprecated and should not be used anymore: */
/****************************************************************/
/* ioctl for identifying and giving some info (esp. memory heap start) */
#define SISFB_GET_INFO_OLD	   _IOR('n',0xF8,__u32)
/* ioctrl to get current vertical retrace status */
#define SISFB_GET_VBRSTATUS_OLD	   _IOR('n',0xF9,__u32)
/* ioctl to enable/disable panning auto-maximize (like nomax parameter) */
#define SISFB_GET_AUTOMAXIMIZE_OLD _IOR('n',0xFA,__u32)
#define SISFB_SET_AUTOMAXIMIZE_OLD _IOW('n',0xFA,__u32)
/****************************************************************/
/*               End of deprecated ioctl numbers                */
/****************************************************************/

/* For fb memory manager (FBIO_ALLOC, FBIO_FREE) */
struct sis_memreq {
	__u32	offset;
	__u32	size;
};

/**********************************************/
/*                  PRIVATE                   */
/*         (for IN-KERNEL usage only)         */
/**********************************************/

#endif /* _LINUX_SISFB_H_ */

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