#ifndef _SISFB_MAIN
#define _SISFB_MAIN

/* ------------------- Constant Definitions ------------------------- */

#undef LINUXBIOS		/* turn on when use LINUXBIOS */
#define AGPOFF			/* default is turn off AGP */

#define VER_MAJOR                 1
#define VER_MINOR                 3
#define VER_LEVEL                 9

#define DEFAULT_MODE              0
#define DEFAULT_LCDMODE           9
#define DEFAULT_TVMODE            9

#define MAX_ROM_SCAN              0x10000

#define TURBO_QUEUE_CAP           0x80
#define HW_CURSOR_CAP             0x40
#define AGP_CMD_QUEUE_CAP         0x80
#define VM_CMD_QUEUE_CAP          0x20

/* For 300 series */
#ifdef CONFIG_FB_SIS_300
#define TURBO_QUEUE_AREA_SIZE     0x80000	/* 512K */
#define HW_CURSOR_AREA_SIZE       0x1000	/* 4K */
#endif

/* For 315 series */
#ifdef CONFIG_FB_SIS_315
#define COMMAND_QUEUE_AREA_SIZE   0x80000	/* 512K */
#define HW_CURSOR_AREA_SIZE       0x4000	/* 16K */
#define COMMAND_QUEUE_THRESHOLD   0x1F
#endif

#define 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 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_SCRATCH_REG_16    0x16
#define IND_SIS_SCRATCH_REG_17    0x17
#define IND_SIS_SCRATCH_REG_1A    0x1A
#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_SCRATCH_REG_CR30  0x30	/* CRs */
#define IND_SIS_SCRATCH_REG_CR31  0x31
#define IND_SIS_SCRATCH_REG_CR32  0x32
#define IND_SIS_SCRATCH_REG_CR33  0x33
#define IND_SIS_LCD_PANEL         0x36
#define IND_SIS_SCRATCH_REG_CR37  0x37
#define IND_SIS_AGP_IO_PAD        0x48

#define IND_BRI_DRAM_STATUS       0x63

#define MMIO_QUEUE_PHYBASE        0x85C0
#define MMIO_QUEUE_WRITEPORT      0x85C4
#define MMIO_QUEUE_READPORT       0x85C8

// Eden Chen
#ifdef CONFIG_FB_SIS_300
#define IND_SIS_CRT2_WRITE_ENABLE 0x24
#endif
#ifdef CONFIG_FB_SIS_315
#define IND_SIS_CRT2_WRITE_ENABLE 0x2F
#endif
// ~Eden Chen

#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_DRAM_SIZE_MASK        0x3F	/* SR14 */
#define SIS_DRAM_SIZE_1MB         0x00
#define SIS_DRAM_SIZE_2MB         0x01
#define SIS_DRAM_SIZE_4MB         0x03
#define SIS_DRAM_SIZE_8MB         0x07
#define SIS_DRAM_SIZE_16MB        0x0F
#define SIS_DRAM_SIZE_32MB        0x1F
#define SIS_DRAM_SIZE_64MB        0x3F
#define SIS_DATA_BUS_MASK         0xC0
#define SIS_DATA_BUS_32           0x00
#define SIS_DATA_BUS_64           0x01
#define SIS_DATA_BUS_128          0x02
#define SIS315_DRAM_SIZE_MASK     0xF0	/* 315 SR14 */
#define SIS315_DRAM_SIZE_2MB      0x01
#define SIS315_DRAM_SIZE_4MB      0x02
#define SIS315_DRAM_SIZE_8MB      0x03
#define SIS315_DRAM_SIZE_16MB     0x04
#define SIS315_DRAM_SIZE_32MB     0x05
#define SIS315_DRAM_SIZE_64MB     0x06
#define SIS315_DRAM_SIZE_128MB    0x07
#define SIS315_DATA_BUS_MASK      0x02
#define SIS315_DATA_BUS_64        0x00
#define SIS315_DATA_BUS_128       0x01
#define SIS315_DUAL_CHANNEL_MASK  0x0C
#define SIS315_SINGLE_CHANNEL_1_RANK  0x0
#define SIS315_SINGLE_CHANNEL_2_RANK  0x1
#define SIS315_DUAL_CHANNEL_1_RANK    0x3
#define SIS550_DRAM_SIZE_MASK     0x3F	/* 550 SR14 */
#define SIS550_DRAM_SIZE_4MB      0x00
#define SIS550_DRAM_SIZE_8MB      0x01
#define SIS550_DRAM_SIZE_16MB     0x03
#define SIS550_DRAM_SIZE_24MB     0x05
#define SIS550_DRAM_SIZE_32MB     0x07
#define SIS550_DRAM_SIZE_64MB     0x0F
#define SIS550_DRAM_SIZE_96MB     0x17
#define SIS550_DRAM_SIZE_128MB    0x1F
#define SIS550_DRAM_SIZE_256MB    0x3F

#define SIS_SCRATCH_REG_1A_MASK   0x10
#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 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_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_DVI                0x80
#define SIS_VB_TV                 (SIS_VB_COMPOSITE | SIS_VB_SVIDEO | SIS_VB_SCART | SIS_VB_HIVISION)
#define SIS_LCD_PANEL_800X600     0x1	/* CR36 */
#define SIS_LCD_PANEL_1024X768    0x2
#define SIS_LCD_PANEL_1280X1024   0x3
#define SIS_LCD_PANEL_1280X960    0x4
#define SIS_LCD_PANEL_640X480     0x5
#define SIS_EXTERNAL_CHIP_MASK    0x0E	/* CR37 */
#define SIS_EXTERNAL_CHIP_SIS301        0x01
#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 SIS_AGP_2X                0x20	/* CR48 */

#define BRI_DRAM_SIZE_MASK        0x70	/* PCI bridge */
#define BRI_DRAM_SIZE_2MB         0x00
#define BRI_DRAM_SIZE_4MB         0x01
#define BRI_DRAM_SIZE_8MB         0x02
#define BRI_DRAM_SIZE_16MB        0x03
#define BRI_DRAM_SIZE_32MB        0x04
#define BRI_DRAM_SIZE_64MB        0x05

// Eden Chen
#define HW_DEVICE_EXTENSION	    SIS_HW_DEVICE_INFO
#define PHW_DEVICE_EXTENSION      PSIS_HW_DEVICE_INFO

#define SR_BUFFER_SIZE            5
#define CR_BUFFER_SIZE            5
// ~Eden Chen

/* ------------------- Global Variables ----------------------------- */

/* Fbcon variables */
static struct fb_info fb_info;
static struct display disp;
static int video_type = FB_TYPE_PACKED_PIXELS;
static int video_linelength;
static int video_cmap_len;
static struct display_switch sisfb_sw;
static struct fb_var_screeninfo default_var = {
	0, 0, 0, 0,
	0, 0,
	0,
	0,
	{0, 8, 0},
	{0, 8, 0},
	{0, 8, 0},
	{0, 0, 0},
	0,
	FB_ACTIVATE_NOW, -1, -1, 0, 0, 0, 0, 0, 0, 0, 0,
	0,
	FB_VMODE_NONINTERLACED,
	{0, 0, 0, 0, 0, 0}
};

static struct {
	u16 blue, green, red, pad;
} palette[256];
static union {
#ifdef FBCON_HAS_CFB16
	u16 cfb16[16];
#endif
#ifdef FBCON_HAS_CFB24
	u32 cfb24[16];
#endif
#ifdef FBCON_HAS_CFB32
	u32 cfb32[16];
#endif
} fbcon_cmap;

/* display status */
static int sisfb_off = 0;
static int sisfb_crt1off = 0;
static int sisfb_inverse = 0;
static int sisvga_enabled = 0;
static int currcon = 0;
/*karl*/
static int sisfb_tvmode = 0;
static int sisfb_mem = 0;

static enum _VGA_ENGINE {
	UNKNOWN_VGA = 0,
	SIS_300_VGA,
	SIS_315_VGA,
} sisvga_engine = UNKNOWN_VGA;

/* mode-related variables */
int sisfb_mode_idx = -1;
u8 sisfb_mode_no = 0;
u8 sisfb_rate_idx = 0;

/* data for sis components*/
struct video_info ivideo;

// Eden Chen
HW_DEVICE_EXTENSION sishw_ext = {
	NULL, NULL, NULL, NULL,
	0, 0, 0, 0, 0, 0, 0, 0, 0,
	NULL, NULL, NULL, NULL,
	{0, 0, 0, 0}
};
// ~Eden Chen

/* card parameters */
static unsigned long sisfb_mmio_size = 0;
static u8 sisfb_caps = 0;

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

/* Supported SiS Chips list */
static struct board {
	u16 vendor, device;
	const char *name;
} sisdev_list[] = {
	{
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_300, "SIS 300"}, {
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_540_VGA, "SIS 540"}, {
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_630_VGA, "SIS 630"}, {
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_315H, "SIS 315H"}, {
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_315, "SIS 315"}, {
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_315PRO, "SIS 315Pro"}, {
	PCI_VENDOR_ID_SI, PCI_DEVICE_ID_SI_550_VGA, "SIS 550"}, {
	0, 0, NULL}
};

/* mode table */
static const struct _sisbios_mode {
	char name[15];
	u8 mode_no;
	u16 xres;
	u16 yres;
	u16 bpp;
	u16 rate_idx;
	u16 cols;
	u16 rows;
} sisbios_mode[] = {
	{
	"640x480x8", 0x2E, 640, 480, 8, 1, 80, 30}, {
	"640x480x16", 0x44, 640, 480, 16, 1, 80, 30}, {
	"640x480x32", 0x62, 640, 480, 32, 1, 80, 30}, {
	"720x480x8", 0x31, 720, 480, 8, 1, 90, 30}, {
	"720x480x16", 0x33, 720, 480, 16, 1, 90, 30}, {
	"720x480x32", 0x35, 720, 480, 32, 1, 90, 30}, {
	"720x576x8", 0x32, 720, 576, 8, 1, 90, 36}, {
	"720x576x16", 0x34, 720, 576, 16, 1, 90, 36}, {
	"720x576x32", 0x36, 720, 576, 32, 1, 90, 36}, {
	"800x600x8", 0x30, 800, 600, 8, 2, 100, 37}, {
	"800x600x16", 0x47, 800, 600, 16, 2, 100, 37}, {
	"800x600x32", 0x63, 800, 600, 32, 2, 100, 37}, {
	"1024x768x8", 0x38, 1024, 768, 8, 2, 128, 48}, {
	"1024x768x16", 0x4A, 1024, 768, 16, 2, 128, 48}, {
	"1024x768x32", 0x64, 1024, 768, 32, 2, 128, 48}, {
	"1280x1024x8", 0x3A, 1280, 1024, 8, 2, 160, 64}, {
	"1280x1024x16", 0x4D, 1280, 1024, 16, 2, 160, 64}, {
	"1280x1024x32", 0x65, 1280, 1024, 32, 2, 160, 64}, {
	"1600x1200x8", 0x3C, 1600, 1200, 8, 1, 200, 75}, {
	"1600x1200x16", 0x3D, 1600, 1200, 16, 1, 200, 75}, {
	"1600x1200x32", 0x66, 1600, 1200, 32, 1, 200, 75}, {
	"1920x1440x8", 0x68, 1920, 1440, 8, 1, 240, 75}, {
	"1920x1440x16", 0x69, 1920, 1440, 16, 1, 240, 75}, {
	"1920x1440x32", 0x6B, 1920, 1440, 32, 1, 240, 75}, {
	"\0", 0x00, 0, 0, 0, 0, 0, 0}
};

static struct _sis_vrate {
	u16 idx;
	u16 xres;
	u16 yres;
	u16 refresh;
} sisfb_vrate[] = {
	{
	1, 640, 480, 60}, {
	2, 640, 480, 72}, {
	3, 640, 480, 75}, {
	4, 640, 480, 85}, {
	5, 640, 480, 100}, {
	6, 640, 480, 120}, {
	7, 640, 480, 160}, {
	8, 640, 480, 200}, {
	1, 720, 480, 60}, {
	1, 720, 576, 50}, {
	1, 800, 600, 56}, {
	2, 800, 600, 60}, {
	3, 800, 600, 72}, {
	4, 800, 600, 75}, {
	5, 800, 600, 85}, {
	6, 800, 600, 100}, {
	7, 800, 600, 120}, {
	8, 800, 600, 160}, {
	1, 1024, 768, 43}, {
	2, 1024, 768, 60}, {
	3, 1024, 768, 70}, {
	4, 1024, 768, 75}, {
	5, 1024, 768, 85}, {
	6, 1024, 768, 100}, {
	7, 1024, 768, 120}, {
	1, 1280, 1024, 43}, {
	2, 1280, 1024, 60}, {
	3, 1280, 1024, 75}, {
	4, 1280, 1024, 85}, {
	1, 1600, 1200, 60}, {
	2, 1600, 1200, 65}, {
	3, 1600, 1200, 70}, {
	4, 1600, 1200, 75}, {
	5, 1600, 1200, 85}, {
	1, 1920, 1440, 60}, {
	0, 0, 0, 0}
};

/* Offscreen layout */
typedef struct _SIS_GLYINFO {
	unsigned char ch;
	int fontwidth;
	int fontheight;
	u8 gmask[72];
	int ngmask;
} SIS_GLYINFO;

typedef struct _SIS_OH {
	struct _SIS_OH *poh_next;
	struct _SIS_OH *poh_prev;
	unsigned long offset;
	unsigned long 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;
	unsigned long max_freesize;
} SIS_HEAP;

static unsigned long sisfb_hwcursor_vbase;

static unsigned long sisfb_heap_start;
static unsigned long sisfb_heap_end;
static unsigned long sisfb_heap_size;
static SIS_HEAP sisfb_heap;

// Eden Chen
static struct _sis_TV_filter {
	u8 filter[9][4];
} sis_TV_filter[] = {
	{ { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_0 */
	{
	0x00, 0xE0, 0x10, 0x60}, {
	0x00, 0xEE, 0x10, 0x44}, {
	0x00, 0xF4, 0x10, 0x38}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0x00, 0x00, 0x10, 0x20}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_1 */
	{
	0x00, 0xE0, 0x10, 0x60}, {
	0x00, 0xEE, 0x10, 0x44}, {
	0x00, 0xF4, 0x10, 0x38}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0x00, 0x00, 0x10, 0x20}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_2 */
	{
	0xF5, 0xEE, 0x1B, 0x44}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xEB, 0x04, 0x25, 0x18}, {
	0xF1, 0x05, 0x1F, 0x16}, {
	0xF6, 0x06, 0x1A, 0x14}, {
	0xFA, 0x06, 0x16, 0x14}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_3 */
	{
	0xF1, 0x04, 0x1F, 0x18}, {
	0xEE, 0x0D, 0x22, 0x06}, {
	0xF7, 0x06, 0x19, 0x14}, {
	0xF4, 0x0B, 0x1C, 0x0A}, {
	0xFA, 0x07, 0x16, 0x12}, {
	0xF9, 0x0A, 0x17, 0x0C}, {
	0x00, 0x07, 0x10, 0x12}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_4 */
	{
	0x00, 0xE0, 0x10, 0x60}, {
	0x00, 0xEE, 0x10, 0x44}, {
	0x00, 0xF4, 0x10, 0x38}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0x00, 0x00, 0x10, 0x20}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_5 */
	{
	0xF5, 0xEE, 0x1B, 0x44}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xEB, 0x04, 0x25, 0x18}, {
	0xF1, 0x05, 0x1F, 0x16}, {
	0xF6, 0x06, 0x1A, 0x14}, {
	0xFA, 0x06, 0x16, 0x14}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_6 */
	{
	0xEB, 0x04, 0x25, 0x18}, {
	0xE7, 0x0E, 0x29, 0x04}, {
	0xEE, 0x0C, 0x22, 0x08}, {
	0xF6, 0x0B, 0x1A, 0x0A}, {
	0xF9, 0x0A, 0x17, 0x0C}, {
	0xFC, 0x0A, 0x14, 0x0C}, {
	0x00, 0x08, 0x10, 0x10}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* NTSCFilter_7 */
	{
	0xEC, 0x02, 0x24, 0x1C}, {
	0xF2, 0x04, 0x1E, 0x18}, {
	0xEB, 0x15, 0x25, 0xF6}, {
	0xF4, 0x10, 0x1C, 0x00}, {
	0xF8, 0x0F, 0x18, 0x02}, {
	0x00, 0x04, 0x10, 0x18}, {
	0x01, 0x06, 0x0F, 0x14}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_0 */
	{
	0x00, 0xE0, 0x10, 0x60}, {
	0x00, 0xEE, 0x10, 0x44}, {
	0x00, 0xF4, 0x10, 0x38}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0x00, 0x00, 0x10, 0x20}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_1 */
	{
	0x00, 0xE0, 0x10, 0x60}, {
	0x00, 0xEE, 0x10, 0x44}, {
	0x00, 0xF4, 0x10, 0x38}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0x00, 0x00, 0x10, 0x20}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_2 */
	{
	0xF5, 0xEE, 0x1B, 0x44}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xF1, 0xF7, 0x01, 0x32}, {
	0xF5, 0xFB, 0x1B, 0x2A}, {
	0xF9, 0xFF, 0x17, 0x22}, {
	0xFB, 0x01, 0x15, 0x1E}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_3 */
	{
	0xF5, 0xFB, 0x1B, 0x2A}, {
	0xEE, 0xFE, 0x22, 0x24}, {
	0xF3, 0x00, 0x1D, 0x20}, {
	0xF9, 0x03, 0x17, 0x1A}, {
	0xFB, 0x02, 0x14, 0x1E}, {
	0xFB, 0x04, 0x15, 0x18}, {
	0x00, 0x06, 0x10, 0x14}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_4 */
	{
	0x00, 0xE0, 0x10, 0x60}, {
	0x00, 0xEE, 0x10, 0x44}, {
	0x00, 0xF4, 0x10, 0x38}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0x00, 0x00, 0x10, 0x20}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_5 */
	{
	0xF5, 0xEE, 0x1B, 0x44}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xF1, 0xF7, 0x1F, 0x32}, {
	0xF5, 0xFB, 0x1B, 0x2A}, {
	0xF9, 0xFF, 0x17, 0x22}, {
	0xFB, 0x01, 0x15, 0x1E}, {
	0x00, 0x04, 0x10, 0x18}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_6 */
	{
	0xF5, 0xEE, 0x1B, 0x2A}, {
	0xEE, 0xFE, 0x22, 0x24}, {
	0xF3, 0x00, 0x1D, 0x20}, {
	0xF9, 0x03, 0x17, 0x1A}, {
	0xFB, 0x02, 0x14, 0x1E}, {
	0xFB, 0x04, 0x15, 0x18}, {
	0x00, 0x06, 0x10, 0x14}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}, { { {
	0x00, 0x00, 0x00, 0x40},	/* PALFilter_7 */
	{
	0xF5, 0xEE, 0x1B, 0x44}, {
	0xF8, 0xF4, 0x18, 0x38}, {
	0xFC, 0xFB, 0x14, 0x2A}, {
	0xEB, 0x05, 0x25, 0x16}, {
	0xF1, 0x05, 0x1F, 0x16}, {
	0xFA, 0x07, 0x16, 0x12}, {
	0x00, 0x07, 0x10, 0x12}, {
	0xFF, 0xFF, 0xFF, 0xFF}}}
};

static int filter = -1;
static unsigned char filter_tb;
//~Eden Chen

/* ---------------------- Routine Prototype ------------------------- */

/* Interface used by the world */
int sisfb_setup (char *options);
static int sisfb_get_fix (struct fb_fix_screeninfo *fix, int con,
			  struct fb_info *info);
static int sisfb_get_var (struct fb_var_screeninfo *var, int con,
			  struct fb_info *info);
static int sisfb_set_var (struct fb_var_screeninfo *var, int con,
			  struct fb_info *info);
static int sisfb_get_cmap (struct fb_cmap *cmap, int kspc, int con,
			   struct fb_info *info);
static int sisfb_set_cmap (struct fb_cmap *cmap, int kspc, int con,
			   struct fb_info *info);
static int sisfb_ioctl (struct inode *inode, struct file *file,
			unsigned int cmd, unsigned long arg, int con,
			struct fb_info *info);

/* Interface to the low level console driver */
int sisfb_init (void);
static int sisfb_update_var (int con, struct fb_info *info);
static int sisfb_switch (int con, struct fb_info *info);
static void sisfb_blank (int blank, struct fb_info *info);

/* hardware access routines */
void sisfb_set_reg1 (u16 port, u16 index, u16 data);
void sisfb_set_reg3 (u16 port, u16 data);
void sisfb_set_reg4 (u16 port, unsigned long data);
u8 sisfb_get_reg1 (u16 port, u16 index);
u8 sisfb_get_reg2 (u16 port);
u32 sisfb_get_reg3 (u16 port);
// Eden Chen
//void sisfb_clear_DAC(u16 port);
//void sisfb_clear_buffer(PHW_DEVICE_EXTENSION psishw_ext);
// ~Eden Chen

/* Internal routines */
static void sisfb_search_mode (const char *name);
static void sisfb_validate_mode (void);
static u8 sisfb_search_refresh_rate (unsigned int rate);
static int sis_getcolreg (unsigned regno, unsigned *red, unsigned *green,
			  unsigned *blue, unsigned *transp,
			  struct fb_info *fb_info);
static int sis_setcolreg (unsigned regno, unsigned red, unsigned green,
			  unsigned blue, unsigned transp,
			  struct fb_info *fb_info);
static int sisfb_do_set_var (struct fb_var_screeninfo *var, int isactive,
			     struct fb_info *info);
static void sisfb_set_disp (int con, struct fb_var_screeninfo *var);
static void sisfb_do_install_cmap (int con, struct fb_info *info);

/* Chip-dependent Routines */
#ifdef CONFIG_FB_SIS_300
static int sisfb_get_dram_size_300 (void);
//extern BOOLEAN SiSInit300(PHW_DEVICE_EXTENSION HwDeviceExtension);
static void sisfb_detect_VB_connect_300 (void);
static void sisfb_get_VB_type_300 (void);
static int sisfb_has_VB_300 (void);
//extern BOOLEAN SiSSetMode(PHW_DEVICE_EXTENSION HwDeviceExtension,USHORT ModeNo);
#endif
#ifdef CONFIG_FB_SIS_315
static int sisfb_get_dram_size_315 (void);
//extern BOOLEAN SiSInit310(PHW_DEVICE_EXTENSION HwDeviceExtension);
static void sisfb_detect_VB_connect_315 (void);
static void sisfb_get_VB_type_315 (void);
//extern BOOLEAN SiSSetMode310(PHW_DEVICE_EXTENSION HwDeviceExtension, USHORT ModeNo);
#endif

/* SetMode routines */

// Eden Chen
extern BOOLEAN SiSSetMode (PSIS_HW_DEVICE_INFO HwDeviceExtension,
			   USHORT ModeNo);
extern BOOLEAN SiSInit (PSIS_HW_DEVICE_INFO HwDeviceExtension);
// ~Eden Chen

static void sisfb_pre_setmode (void);
static void sisfb_post_setmode (void);
static void sisfb_crtc_to_var (struct fb_var_screeninfo *var);

/* Export functions  */
static void sis_get_glyph (SIS_GLYINFO * gly);
void sis_dispinfo (struct ap_data *rec);
void sis_malloc (struct sis_memreq *req);
void sis_free (unsigned long base);

/* heap routines */
static int sisfb_heap_init (void);
static SIS_OH *sisfb_poh_new_node (void);
static SIS_OH *sisfb_poh_allocate (unsigned long size);
static void sisfb_delete_node (SIS_OH * poh);
static void sisfb_insert_node (SIS_OH * pohList, SIS_OH * poh);
static SIS_OH *sisfb_poh_free (unsigned long base);
static void sisfb_free_node (SIS_OH * poh);

/* routines to access PCI configuration space */
BOOLEAN sisfb_query_VGA_config_space (PSIS_HW_DEVICE_INFO psishw_ext,
				      unsigned long offset, unsigned long set,
				      unsigned long *value);
BOOLEAN sisfb_query_north_bridge_space (PSIS_HW_DEVICE_INFO psishw_ext,
					unsigned long offset, unsigned long set,
					unsigned long *value);

#endif