/*
 * SiS 300/630/730/540/315/550/650/651/M650/661FX/M661FX/740/741/330/760
 * frame buffer driver for Linux kernels >=2.4.14 and >=2.6.3
 *
 * Copyright (C) 2001-2004 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 _SIS_H
#define _SIS_H

#include <linux/config.h>
#include <linux/version.h>

#include "osdef.h"
#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
#include <video/sisfb.h>
#else
#include <linux/sisfb.h>
#endif

#include "vgatypes.h"
#include "vstruct.h"

#define VER_MAJOR                 1
#define VER_MINOR                 7
#define VER_LEVEL                 12

#undef SIS_CONFIG_COMPAT

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
#include <linux/spinlock.h>
#ifdef CONFIG_COMPAT
#include <linux/ioctl32.h>
#define SIS_CONFIG_COMPAT
#endif
#elif LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,19)
#ifdef __x86_64__
/* Shouldn't we check for CONFIG_IA32_EMULATION here? */
#include <asm/ioctl32.h>
#define SIS_CONFIG_COMPAT
#endif
#endif

#undef SISFBDEBUG

#ifdef SISFBDEBUG
#define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
#define TWDEBUG(x) printk(KERN_INFO x "\n");
#else
#define DPRINTK(fmt, args...)
#define TWDEBUG(x)
#endif

#define SISFAIL(x) do { printk(x "\n"); return -EINVAL; } while(0)

/* To be included in pci_ids.h */
#ifndef PCI_DEVICE_ID_SI_650_VGA
#define PCI_DEVICE_ID_SI_650_VGA  0x6325
#endif
#ifndef PCI_DEVICE_ID_SI_650
#define PCI_DEVICE_ID_SI_650      0x0650
#endif
#ifndef PCI_DEVICE_ID_SI_651
#define PCI_DEVICE_ID_SI_651      0x0651
#endif
#ifndef PCI_DEVICE_ID_SI_740
#define PCI_DEVICE_ID_SI_740      0x0740
#endif
#ifndef PCI_DEVICE_ID_SI_330
#define PCI_DEVICE_ID_SI_330      0x0330
#endif
#ifndef PCI_DEVICE_ID_SI_660_VGA
#define PCI_DEVICE_ID_SI_660_VGA  0x6330
#endif
#ifndef PCI_DEVICE_ID_SI_661
#define PCI_DEVICE_ID_SI_661      0x0661
#endif
#ifndef PCI_DEVICE_ID_SI_741
#define PCI_DEVICE_ID_SI_741      0x0741
#endif
#ifndef PCI_DEVICE_ID_SI_660
#define PCI_DEVICE_ID_SI_660      0x0660
#endif
#ifndef PCI_DEVICE_ID_SI_760
#define PCI_DEVICE_ID_SI_760      0x0760
#endif

/* To be included in fb.h */
#ifndef FB_ACCEL_SIS_GLAMOUR_2
#define FB_ACCEL_SIS_GLAMOUR_2	  40	/* SiS 315, 65x, 740, 661, 741  */
#endif
#ifndef FB_ACCEL_SIS_XABRE
#define FB_ACCEL_SIS_XABRE        41	/* SiS 330 ("Xabre"), 760 	*/
#endif

#define MAX_ROM_SCAN              0x10000

/* ivideo->caps */
#define HW_CURSOR_CAP             0x80
#define TURBO_QUEUE_CAP           0x40
#define AGP_CMD_QUEUE_CAP         0x20
#define VM_CMD_QUEUE_CAP          0x10
#define MMIO_CMD_QUEUE_CAP        0x08

/* For 300 series */
#define TURBO_QUEUE_AREA_SIZE     0x80000 /* 512K */
#define HW_CURSOR_AREA_SIZE_300   0x1000  /* 4K */

/* For 315/Xabre series */
#define COMMAND_QUEUE_AREA_SIZE   0x80000 /* 512K */
#define COMMAND_QUEUE_THRESHOLD   0x1F
#define HW_CURSOR_AREA_SIZE_315   0x4000  /* 16K */

#define SIS_OH_ALLOC_SIZE         4000
#define SENTINEL                  0x7fffffff

#define SEQ_ADR                   0x14
#define SEQ_DATA                  0x15
#define DAC_ADR                   0x18
#define DAC_DATA                  0x19
#define CRTC_ADR                  0x24
#define CRTC_DATA                 0x25
#define DAC2_ADR                  (0x16-0x30)
#define DAC2_DATA                 (0x17-0x30)
#define VB_PART1_ADR              (0x04-0x30)
#define VB_PART1_DATA             (0x05-0x30)
#define VB_PART2_ADR              (0x10-0x30)
#define VB_PART2_DATA             (0x11-0x30)
#define VB_PART3_ADR              (0x12-0x30)
#define VB_PART3_DATA             (0x13-0x30)
#define VB_PART4_ADR              (0x14-0x30)
#define VB_PART4_DATA             (0x15-0x30)

#define SISSR			  ivideo->SiS_Pr.SiS_P3c4
#define SISCR                     ivideo->SiS_Pr.SiS_P3d4
#define SISDACA                   ivideo->SiS_Pr.SiS_P3c8
#define SISDACD                   ivideo->SiS_Pr.SiS_P3c9
#define SISPART1                  ivideo->SiS_Pr.SiS_Part1Port
#define SISPART2                  ivideo->SiS_Pr.SiS_Part2Port
#define SISPART3                  ivideo->SiS_Pr.SiS_Part3Port
#define SISPART4                  ivideo->SiS_Pr.SiS_Part4Port
#define SISPART5                  ivideo->SiS_Pr.SiS_Part5Port
#define SISDAC2A                  SISPART5
#define SISDAC2D                  (SISPART5 + 1)
#define SISMISCR                  (ivideo->SiS_Pr.RelIO + 0x1c)
#define SISMISCW                  ivideo->SiS_Pr.SiS_P3c2
#define SISINPSTAT		  (ivideo->SiS_Pr.RelIO + 0x2a)
#define SISPEL			  ivideo->SiS_Pr.SiS_P3c6

#define IND_SIS_PASSWORD          0x05  /* SRs */
#define IND_SIS_COLOR_MODE        0x06
#define IND_SIS_RAMDAC_CONTROL    0x07
#define IND_SIS_DRAM_SIZE         0x14
#define IND_SIS_MODULE_ENABLE     0x1E
#define IND_SIS_PCI_ADDRESS_SET   0x20
#define IND_SIS_TURBOQUEUE_ADR    0x26
#define IND_SIS_TURBOQUEUE_SET    0x27
#define IND_SIS_POWER_ON_TRAP     0x38
#define IND_SIS_POWER_ON_TRAP2    0x39
#define IND_SIS_CMDQUEUE_SET      0x26
#define IND_SIS_CMDQUEUE_THRESHOLD  0x27

#define IND_SIS_AGP_IO_PAD        0x48

#define SIS_CRT2_WENABLE_300 	  0x24  /* Part1 */
#define SIS_CRT2_WENABLE_315 	  0x2F

#define SIS_PASSWORD              0x86  /* SR05 */
#define SIS_INTERLACED_MODE       0x20  /* SR06 */
#define SIS_8BPP_COLOR_MODE       0x0
#define SIS_15BPP_COLOR_MODE      0x1
#define SIS_16BPP_COLOR_MODE      0x2
#define SIS_32BPP_COLOR_MODE      0x4

#define SIS_ENABLE_2D             0x40  /* SR1E */

#define SIS_MEM_MAP_IO_ENABLE     0x01  /* SR20 */
#define SIS_PCI_ADDR_ENABLE       0x80

#define SIS_AGP_CMDQUEUE_ENABLE   0x80  /* 315/330 series SR26 */
#define SIS_VRAM_CMDQUEUE_ENABLE  0x40
#define SIS_MMIO_CMD_ENABLE       0x20
#define SIS_CMD_QUEUE_SIZE_512k   0x00
#define SIS_CMD_QUEUE_SIZE_1M     0x04
#define SIS_CMD_QUEUE_SIZE_2M     0x08
#define SIS_CMD_QUEUE_SIZE_4M     0x0C
#define SIS_CMD_QUEUE_RESET       0x01
#define SIS_CMD_AUTO_CORR	  0x02

#define SIS_SIMULTANEOUS_VIEW_ENABLE  0x01  /* CR30 */
#define SIS_MODE_SELECT_CRT2      0x02
#define SIS_VB_OUTPUT_COMPOSITE   0x04
#define SIS_VB_OUTPUT_SVIDEO      0x08
#define SIS_VB_OUTPUT_SCART       0x10
#define SIS_VB_OUTPUT_LCD         0x20
#define SIS_VB_OUTPUT_CRT2        0x40
#define SIS_VB_OUTPUT_HIVISION    0x80

#define SIS_VB_OUTPUT_DISABLE     0x20  /* CR31 */
#define SIS_DRIVER_MODE           0x40

#define SIS_VB_COMPOSITE          0x01  /* CR32 */
#define SIS_VB_SVIDEO             0x02
#define SIS_VB_SCART              0x04
#define SIS_VB_LCD                0x08
#define SIS_VB_CRT2               0x10
#define SIS_CRT1                  0x20
#define SIS_VB_HIVISION           0x40
#define SIS_VB_YPBPR              0x80
#define SIS_VB_TV                 (SIS_VB_COMPOSITE | SIS_VB_SVIDEO | \
                                   SIS_VB_SCART | SIS_VB_HIVISION | SIS_VB_YPBPR)

#define SIS_EXTERNAL_CHIP_MASK    	   0x0E  /* CR37 (< SiS 660) */
#define SIS_EXTERNAL_CHIP_SIS301           0x01  /* in CR37 << 1 ! */
#define SIS_EXTERNAL_CHIP_LVDS             0x02
#define SIS_EXTERNAL_CHIP_TRUMPION         0x03
#define SIS_EXTERNAL_CHIP_LVDS_CHRONTEL    0x04
#define SIS_EXTERNAL_CHIP_CHRONTEL         0x05
#define SIS310_EXTERNAL_CHIP_LVDS          0x02
#define SIS310_EXTERNAL_CHIP_LVDS_CHRONTEL 0x03

#define SIS_AGP_2X                0x20  /* CR48 */

#define HW_DEVICE_EXTENSION	  SIS_HW_INFO
#define PHW_DEVICE_EXTENSION      PSIS_HW_INFO

/* Useful macros */
#define inSISREG(base)          inb(base)
#define outSISREG(base,val)     outb(val,base)
#define orSISREG(base,val)      do { \
                                  u8 __Temp = inb(base); \
                                  outSISREG(base, __Temp | (val)); \
                                } while (0)
#define andSISREG(base,val)     do { \
                                  u8 __Temp = inb(base); \
                                  outSISREG(base, __Temp & (val)); \
                                } while (0)
#define inSISIDXREG(base,idx,var)   do { \
                                      outb(idx,base); var=inb((base)+1); \
                                    } while (0)
#define outSISIDXREG(base,idx,val)  do { \
                                      outb(idx,base); outb((val),(base)+1); \
                                    } while (0)
#define orSISIDXREG(base,idx,val)   do { \
                                      u8 __Temp; \
                                      outb(idx,base);   \
                                      __Temp = inb((base)+1)|(val); \
                                      outSISIDXREG(base,idx,__Temp); \
                                    } while (0)
#define andSISIDXREG(base,idx,and)  do { \
                                      u8 __Temp; \
                                      outb(idx,base);   \
                                      __Temp = inb((base)+1)&(and); \
                                      outSISIDXREG(base,idx,__Temp); \
                                    } while (0)
#define setSISIDXREG(base,idx,and,or)   do { \
                                          u8 __Temp; \
                                          outb(idx,base);   \
                                          __Temp = (inb((base)+1)&(and))|(or); \
                                          outSISIDXREG(base,idx,__Temp); \
                                        } while (0)

/* MMIO access macros */
#define MMIO_IN8(base, offset)  readb((base+offset))
#define MMIO_IN16(base, offset) readw((base+offset))
#define MMIO_IN32(base, offset) readl((base+offset))

#define MMIO_OUT8(base, offset, val)  writeb(((u8)(val)), (base+offset))
#define MMIO_OUT16(base, offset, val) writew(((u16)(val)), (base+offset))
#define MMIO_OUT32(base, offset, val) writel(((u32)(val)), (base+offset))

/* Queue control MMIO registers */
#define Q_BASE_ADDR		0x85C0  /* Base address of software queue */
#define Q_WRITE_PTR		0x85C4  /* Current write pointer */
#define Q_READ_PTR		0x85C8  /* Current read pointer */
#define Q_STATUS		0x85CC  /* queue status */

#define MMIO_QUEUE_PHYBASE      Q_BASE_ADDR
#define MMIO_QUEUE_WRITEPORT    Q_WRITE_PTR
#define MMIO_QUEUE_READPORT     Q_READ_PTR

enum _SIS_CMDTYPE {
	MMIO_CMD = 0,
	AGP_CMD_QUEUE,
	VM_CMD_QUEUE,
};
typedef unsigned int SIS_CMDTYPE;

/* Our "par" */
struct sis_video_info {
	int		cardnumber;
	struct fb_info  *memyselfandi;

	SIS_HW_INFO 	sishw_ext;
	SiS_Private  	SiS_Pr;

	sisfb_info 	sisfbinfo;	/* For ioctl SISFB_GET_INFO */

	struct fb_var_screeninfo default_var;

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
	struct fb_fix_screeninfo sisfb_fix;
	u32 		pseudo_palette[17];
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	struct display 		 sis_disp;
	struct display_switch 	 sisfb_sw;
	struct {
		u16 red, green, blue, pad;
	} 		sis_palette[256];
	union {
#ifdef FBCON_HAS_CFB16
		u16 cfb16[16];
#endif
#ifdef FBCON_HAS_CFB32
		u32 cfb32[16];
#endif
	} 		sis_fbcon_cmap;
#endif

        struct sisfb_monitor {
		u16 hmin;
		u16 hmax;
		u16 vmin;
		u16 vmax;
		u32 dclockmax;
		u8  feature;
		BOOLEAN datavalid;
	} 		sisfb_thismonitor;

	int           	chip_id;
	char		myid[40];

	struct pci_dev  *nbridge;

	int		mni;	/* Mode number index */

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	int  		currcon;
#endif

	unsigned long	video_size;
	unsigned long 	video_base;
	unsigned long	mmio_size;
	unsigned long 	mmio_base;
	unsigned long 	vga_base;

	void __iomem *	video_vbase;
	void __iomem *	mmio_vbase;
	void __iomem * 	bios_vbase;
	void *		bios_abase;

	int 		mtrr;

	u32		sisfb_mem;

	u32 		sisfb_parm_mem;
	int 	   	sisfb_accel;
	int 		sisfb_ypan;
	int 		sisfb_max;
	int 		sisfb_userom;
	int 		sisfb_useoem;
	int		sisfb_mode_idx;
	int		sisfb_parm_rate;
	int		sisfb_crt1off;
	int		sisfb_forcecrt1;
	int		sisfb_crt2type;
	int		sisfb_crt2flags;
	int 		sisfb_dstn;
	int 		sisfb_fstn;
	int		sisfb_tvplug;
	int		sisfb_tvstd;
	int		sisfb_filter;
	int		sisfb_nocrt2rate;
#if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
	int		sisfb_inverse;
#endif

	u32 		heapstart;        /* offset  */
	void __iomem * 	sisfb_heap_start; /* address */
	void __iomem * 	sisfb_heap_end;   /* address */
	u32 	      	sisfb_heap_size;
	int		havenoheap;
#if 0
	SIS_HEAP       	sisfb_heap;
#endif


	int    		video_bpp;
	int    		video_cmap_len;
	int    		video_width;
	int    		video_height;
	unsigned int 	refresh_rate;

	unsigned int 	chip;
	u8   		revision_id;

	int    		video_linelength;	/* real pitch */
	int		scrnpitchCRT1;		/* pitch regarding interlace */

        u16 		DstColor;		/* For 2d acceleration */
	u32  		SiS310_AccelDepth;
	u32  		CommandReg;
	int		cmdqueuelength;

	spinlock_t     	lockaccel;		/* Do not use outside of kernel! */

        unsigned int   	pcibus;
	unsigned int   	pcislot;
	unsigned int   	pcifunc;

	int 	       	accel;

	u16 		subsysvendor;
	u16 		subsysdevice;

	u32  		vbflags;		/* Replacing deprecated stuff from above */
	u32  		currentvbflags;

	int		lcdxres, lcdyres;
	int		lcddefmodeidx, tvdefmodeidx, defmodeidx;

	int    		current_bpp;
	int    		current_width;
	int    		current_height;
	int    		current_htotal;
	int    		current_vtotal;
	int		current_linelength;
	__u32  		current_pixclock;
	int    		current_refresh_rate;

	u8  		mode_no;
	u8  		rate_idx;
	int    		modechanged;
	unsigned char 	modeprechange;

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
	u8 		sisfb_lastrates[128];
#endif

	int  		newrom;
	int  		registered;
#ifdef SIS_CONFIG_COMPAT
	int		ioctl32registered;
	int		ioctl32vblankregistered;
#endif

	int 		sisvga_engine;
	int 		hwcursor_size;
	int 		CRT2_write_enable;
	u8            	caps;

	u8 		detectedpdc;
	u8 		detectedpdca;
	u8 		detectedlcda;

	void __iomem * 	hwcursor_vbase;

	int 		chronteltype;
	int    		tvxpos, tvypos;
	u8              p2_1f,p2_20,p2_2b,p2_42,p2_43,p2_01,p2_02;
	int		tvx, tvy;

	u8 		sisfblocked;

	struct sis_video_info *next;
};

typedef struct _SIS_OH {
	struct _SIS_OH *poh_next;
	struct _SIS_OH *poh_prev;
	u32            offset;
	u32            size;
} SIS_OH;

typedef struct _SIS_OHALLOC {
	struct _SIS_OHALLOC *poha_next;
	SIS_OH aoh[1];
} SIS_OHALLOC;

typedef struct _SIS_HEAP {
	SIS_OH      oh_free;
	SIS_OH      oh_used;
	SIS_OH      *poh_freelist;
	SIS_OHALLOC *poha_chain;
	u32         max_freesize;
	struct sis_video_info *vinfo;
} SIS_HEAP;

#endif