2 * SiS 300/540/630[S]/730[S],
3 * SiS 315[E|PRO]/550/[M]65x/[M]661[F|M]X/740/[M]741[GX]/330/[M]76x[GX],
5 * frame buffer driver for Linux kernels >=2.4.14 and >=2.6.3
7 * Copyright (C) 2001-2005 Thomas Winischhofer, Vienna, Austria.
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the named License,
12 * or any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA
27 #include <linux/config.h>
28 #include <linux/version.h>
31 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
32 #include <video/sisfb.h>
34 #include <linux/sisfb.h>
44 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
45 #include <linux/spinlock.h>
46 #define SIS_PCI_GET_CLASS(a, b) pci_get_class(a, b)
47 #define SIS_PCI_GET_DEVICE(a,b,c) pci_get_device(a,b,c)
48 #define SIS_PCI_GET_SLOT(a,b) pci_get_slot(a,b)
49 #define SIS_PCI_PUT_DEVICE(a) pci_dev_put(a)
51 #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,10)
52 #include <linux/ioctl32.h>
53 #define SIS_OLD_CONFIG_COMPAT
55 #include <linux/smp_lock.h>
56 #define SIS_NEW_CONFIG_COMPAT
58 #endif /* CONFIG_COMPAT */
60 #define SIS_PCI_GET_CLASS(a, b) pci_find_class(a, b)
61 #define SIS_PCI_GET_DEVICE(a,b,c) pci_find_device(a,b,c)
62 #define SIS_PCI_GET_SLOT(a,b) pci_find_slot(a,b)
63 #define SIS_PCI_PUT_DEVICE(a)
64 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,19)
65 #ifdef __x86_64__ /* Shouldn't we check for CONFIG_IA32_EMULATION here? */
66 #include <asm/ioctl32.h>
67 #define SIS_OLD_CONFIG_COMPAT
71 #if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,8)
72 #define SIS_IOTYPE1 void __iomem
73 #define SIS_IOTYPE2 __iomem
74 #define SISINITSTATIC static
76 #define SIS_IOTYPE1 unsigned char
84 #define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __FUNCTION__ , ## args)
85 #define TWDEBUG(x) printk(KERN_INFO x "\n");
87 #define DPRINTK(fmt, args...)
91 #define SISFAIL(x) do { printk(x "\n"); return -EINVAL; } while(0)
93 /* To be included in pci_ids.h */
94 #ifndef PCI_DEVICE_ID_SI_650_VGA
95 #define PCI_DEVICE_ID_SI_650_VGA 0x6325
97 #ifndef PCI_DEVICE_ID_SI_650
98 #define PCI_DEVICE_ID_SI_650 0x0650
100 #ifndef PCI_DEVICE_ID_SI_651
101 #define PCI_DEVICE_ID_SI_651 0x0651
103 #ifndef PCI_DEVICE_ID_SI_740
104 #define PCI_DEVICE_ID_SI_740 0x0740
106 #ifndef PCI_DEVICE_ID_SI_330
107 #define PCI_DEVICE_ID_SI_330 0x0330
109 #ifndef PCI_DEVICE_ID_SI_660_VGA
110 #define PCI_DEVICE_ID_SI_660_VGA 0x6330
112 #ifndef PCI_DEVICE_ID_SI_661
113 #define PCI_DEVICE_ID_SI_661 0x0661
115 #ifndef PCI_DEVICE_ID_SI_741
116 #define PCI_DEVICE_ID_SI_741 0x0741
118 #ifndef PCI_DEVICE_ID_SI_660
119 #define PCI_DEVICE_ID_SI_660 0x0660
121 #ifndef PCI_DEVICE_ID_SI_760
122 #define PCI_DEVICE_ID_SI_760 0x0760
124 #ifndef PCI_DEVICE_ID_SI_761
125 #define PCI_DEVICE_ID_SI_761 0x0761
128 #ifndef PCI_VENDOR_ID_XGI
129 #define PCI_VENDOR_ID_XGI 0x18ca
132 #ifndef PCI_DEVICE_ID_XGI_20
133 #define PCI_DEVICE_ID_XGI_20 0x0020
136 #ifndef PCI_DEVICE_ID_XGI_40
137 #define PCI_DEVICE_ID_XGI_40 0x0040
140 /* To be included in fb.h */
141 #ifndef FB_ACCEL_SIS_GLAMOUR_2
142 #define FB_ACCEL_SIS_GLAMOUR_2 40 /* SiS 315, 65x, 740, 661, 741 */
144 #ifndef FB_ACCEL_SIS_XABRE
145 #define FB_ACCEL_SIS_XABRE 41 /* SiS 330 ("Xabre"), 76x */
147 #ifndef FB_ACCEL_XGI_VOLARI_V
148 #define FB_ACCEL_XGI_VOLARI_V 47 /* XGI Volari Vx (V3XT, V5, V8) */
150 #ifndef FB_ACCEL_XGI_VOLARI_Z
151 #define FB_ACCEL_XGI_VOLARI_Z 48 /* XGI Volari Z7 */
155 #define HW_CURSOR_CAP 0x80
156 #define TURBO_QUEUE_CAP 0x40
157 #define AGP_CMD_QUEUE_CAP 0x20
158 #define VM_CMD_QUEUE_CAP 0x10
159 #define MMIO_CMD_QUEUE_CAP 0x08
162 #define TURBO_QUEUE_AREA_SIZE (512 * 1024) /* 512K */
163 #define HW_CURSOR_AREA_SIZE_300 4096 /* 4K */
165 /* For 315/Xabre series */
166 #define COMMAND_QUEUE_AREA_SIZE (512 * 1024) /* 512K */
167 #define COMMAND_QUEUE_AREA_SIZE_Z7 (128 * 1024) /* 128k for XGI Z7 */
168 #define HW_CURSOR_AREA_SIZE_315 16384 /* 16K */
169 #define COMMAND_QUEUE_THRESHOLD 0x1F
171 #define SIS_OH_ALLOC_SIZE 4000
172 #define SENTINEL 0x7fffffff
175 #define SEQ_DATA 0x15
177 #define DAC_DATA 0x19
178 #define CRTC_ADR 0x24
179 #define CRTC_DATA 0x25
180 #define DAC2_ADR (0x16-0x30)
181 #define DAC2_DATA (0x17-0x30)
182 #define VB_PART1_ADR (0x04-0x30)
183 #define VB_PART1_DATA (0x05-0x30)
184 #define VB_PART2_ADR (0x10-0x30)
185 #define VB_PART2_DATA (0x11-0x30)
186 #define VB_PART3_ADR (0x12-0x30)
187 #define VB_PART3_DATA (0x13-0x30)
188 #define VB_PART4_ADR (0x14-0x30)
189 #define VB_PART4_DATA (0x15-0x30)
191 #define SISSR ivideo->SiS_Pr.SiS_P3c4
192 #define SISCR ivideo->SiS_Pr.SiS_P3d4
193 #define SISDACA ivideo->SiS_Pr.SiS_P3c8
194 #define SISDACD ivideo->SiS_Pr.SiS_P3c9
195 #define SISPART1 ivideo->SiS_Pr.SiS_Part1Port
196 #define SISPART2 ivideo->SiS_Pr.SiS_Part2Port
197 #define SISPART3 ivideo->SiS_Pr.SiS_Part3Port
198 #define SISPART4 ivideo->SiS_Pr.SiS_Part4Port
199 #define SISPART5 ivideo->SiS_Pr.SiS_Part5Port
200 #define SISDAC2A SISPART5
201 #define SISDAC2D (SISPART5 + 1)
202 #define SISMISCR (ivideo->SiS_Pr.RelIO + 0x1c)
203 #define SISMISCW ivideo->SiS_Pr.SiS_P3c2
204 #define SISINPSTAT (ivideo->SiS_Pr.RelIO + 0x2a)
205 #define SISPEL ivideo->SiS_Pr.SiS_P3c6
206 #define SISVGAENABLE (ivideo->SiS_Pr.RelIO + 0x13)
207 #define SISVID (ivideo->SiS_Pr.RelIO + 0x02 - 0x30)
208 #define SISCAP (ivideo->SiS_Pr.RelIO + 0x00 - 0x30)
210 #define IND_SIS_PASSWORD 0x05 /* SRs */
211 #define IND_SIS_COLOR_MODE 0x06
212 #define IND_SIS_RAMDAC_CONTROL 0x07
213 #define IND_SIS_DRAM_SIZE 0x14
214 #define IND_SIS_MODULE_ENABLE 0x1E
215 #define IND_SIS_PCI_ADDRESS_SET 0x20
216 #define IND_SIS_TURBOQUEUE_ADR 0x26
217 #define IND_SIS_TURBOQUEUE_SET 0x27
218 #define IND_SIS_POWER_ON_TRAP 0x38
219 #define IND_SIS_POWER_ON_TRAP2 0x39
220 #define IND_SIS_CMDQUEUE_SET 0x26
221 #define IND_SIS_CMDQUEUE_THRESHOLD 0x27
223 #define IND_SIS_AGP_IO_PAD 0x48
225 #define SIS_CRT2_WENABLE_300 0x24 /* Part1 */
226 #define SIS_CRT2_WENABLE_315 0x2F
228 #define SIS_PASSWORD 0x86 /* SR05 */
230 #define SIS_INTERLACED_MODE 0x20 /* SR06 */
231 #define SIS_8BPP_COLOR_MODE 0x0
232 #define SIS_15BPP_COLOR_MODE 0x1
233 #define SIS_16BPP_COLOR_MODE 0x2
234 #define SIS_32BPP_COLOR_MODE 0x4
236 #define SIS_ENABLE_2D 0x40 /* SR1E */
238 #define SIS_MEM_MAP_IO_ENABLE 0x01 /* SR20 */
239 #define SIS_PCI_ADDR_ENABLE 0x80
241 #define SIS_AGP_CMDQUEUE_ENABLE 0x80 /* 315/330/340 series SR26 */
242 #define SIS_VRAM_CMDQUEUE_ENABLE 0x40
243 #define SIS_MMIO_CMD_ENABLE 0x20
244 #define SIS_CMD_QUEUE_SIZE_512k 0x00
245 #define SIS_CMD_QUEUE_SIZE_1M 0x04
246 #define SIS_CMD_QUEUE_SIZE_2M 0x08
247 #define SIS_CMD_QUEUE_SIZE_4M 0x0C
248 #define SIS_CMD_QUEUE_RESET 0x01
249 #define SIS_CMD_AUTO_CORR 0x02
251 #define SIS_CMD_QUEUE_SIZE_Z7_64k 0x00 /* XGI Z7 */
252 #define SIS_CMD_QUEUE_SIZE_Z7_128k 0x04
254 #define SIS_SIMULTANEOUS_VIEW_ENABLE 0x01 /* CR30 */
255 #define SIS_MODE_SELECT_CRT2 0x02
256 #define SIS_VB_OUTPUT_COMPOSITE 0x04
257 #define SIS_VB_OUTPUT_SVIDEO 0x08
258 #define SIS_VB_OUTPUT_SCART 0x10
259 #define SIS_VB_OUTPUT_LCD 0x20
260 #define SIS_VB_OUTPUT_CRT2 0x40
261 #define SIS_VB_OUTPUT_HIVISION 0x80
263 #define SIS_VB_OUTPUT_DISABLE 0x20 /* CR31 */
264 #define SIS_DRIVER_MODE 0x40
266 #define SIS_VB_COMPOSITE 0x01 /* CR32 */
267 #define SIS_VB_SVIDEO 0x02
268 #define SIS_VB_SCART 0x04
269 #define SIS_VB_LCD 0x08
270 #define SIS_VB_CRT2 0x10
271 #define SIS_CRT1 0x20
272 #define SIS_VB_HIVISION 0x40
273 #define SIS_VB_YPBPR 0x80
274 #define SIS_VB_TV (SIS_VB_COMPOSITE | SIS_VB_SVIDEO | \
275 SIS_VB_SCART | SIS_VB_HIVISION | SIS_VB_YPBPR)
277 #define SIS_EXTERNAL_CHIP_MASK 0x0E /* CR37 (< SiS 660) */
278 #define SIS_EXTERNAL_CHIP_SIS301 0x01 /* in CR37 << 1 ! */
279 #define SIS_EXTERNAL_CHIP_LVDS 0x02
280 #define SIS_EXTERNAL_CHIP_TRUMPION 0x03
281 #define SIS_EXTERNAL_CHIP_LVDS_CHRONTEL 0x04
282 #define SIS_EXTERNAL_CHIP_CHRONTEL 0x05
283 #define SIS310_EXTERNAL_CHIP_LVDS 0x02
284 #define SIS310_EXTERNAL_CHIP_LVDS_CHRONTEL 0x03
286 #define SIS_AGP_2X 0x20 /* CR48 */
288 /* vbflags, private entries (others in sisfb.h) */
289 #define VB_CONEXANT 0x00000800 /* 661 series only */
290 #define VB_TRUMPION VB_CONEXANT /* 300 series only */
291 #define VB_302ELV 0x00004000
292 #define VB_301 0x00100000 /* Video bridge type */
293 #define VB_301B 0x00200000
294 #define VB_302B 0x00400000
295 #define VB_30xBDH 0x00800000 /* 30xB DH version (w/o LCD support) */
296 #define VB_LVDS 0x01000000
297 #define VB_CHRONTEL 0x02000000
298 #define VB_301LV 0x04000000
299 #define VB_302LV 0x08000000
300 #define VB_301C 0x10000000
302 #define VB_SISBRIDGE (VB_301|VB_301B|VB_301C|VB_302B|VB_301LV|VB_302LV|VB_302ELV)
303 #define VB_VIDEOBRIDGE (VB_SISBRIDGE | VB_LVDS | VB_CHRONTEL | VB_CONEXANT)
305 /* vbflags2 (static stuff only!) */
306 #define VB2_SISUMC 0x00000001
307 #define VB2_301 0x00000002 /* Video bridge type */
308 #define VB2_301B 0x00000004
309 #define VB2_301C 0x00000008
310 #define VB2_307T 0x00000010
311 #define VB2_302B 0x00000800
312 #define VB2_301LV 0x00001000
313 #define VB2_302LV 0x00002000
314 #define VB2_302ELV 0x00004000
315 #define VB2_307LV 0x00008000
316 #define VB2_30xBDH 0x08000000 /* 30xB DH version (w/o LCD support) */
317 #define VB2_CONEXANT 0x10000000
318 #define VB2_TRUMPION 0x20000000
319 #define VB2_LVDS 0x40000000
320 #define VB2_CHRONTEL 0x80000000
322 #define VB2_SISLVDSBRIDGE (VB2_301LV | VB2_302LV | VB2_302ELV | VB2_307LV)
323 #define VB2_SISTMDSBRIDGE (VB2_301 | VB2_301B | VB2_301C | VB2_302B | VB2_307T)
324 #define VB2_SISBRIDGE (VB2_SISLVDSBRIDGE | VB2_SISTMDSBRIDGE)
326 #define VB2_SISTMDSLCDABRIDGE (VB2_301C | VB2_307T)
327 #define VB2_SISLCDABRIDGE (VB2_SISTMDSLCDABRIDGE | VB2_301LV | VB2_302LV | VB2_302ELV | VB2_307LV)
329 #define VB2_SISHIVISIONBRIDGE (VB2_301 | VB2_301B | VB2_302B)
330 #define VB2_SISYPBPRBRIDGE (VB2_301C | VB2_307T | VB2_SISLVDSBRIDGE)
331 #define VB2_SISYPBPRARBRIDGE (VB2_301C | VB2_307T | VB2_307LV)
332 #define VB2_SISTAP4SCALER (VB2_301C | VB2_307T | VB2_302ELV | VB2_307LV)
333 #define VB2_SISTVBRIDGE (VB2_SISHIVISIONBRIDGE | VB2_SISYPBPRBRIDGE)
335 #define VB2_SISVGA2BRIDGE (VB2_301 | VB2_301B | VB2_301C | VB2_302B | VB2_307T)
337 #define VB2_VIDEOBRIDGE (VB2_SISBRIDGE | VB2_LVDS | VB2_CHRONTEL | VB2_CONEXANT)
339 #define VB2_30xB (VB2_301B | VB2_301C | VB2_302B | VB2_307T)
340 #define VB2_30xBLV (VB2_30xB | VB2_SISLVDSBRIDGE)
341 #define VB2_30xC (VB2_301C | VB2_307T)
342 #define VB2_30xCLV (VB2_301C | VB2_307T | VB2_302ELV| VB2_307LV)
343 #define VB2_SISEMIBRIDGE (VB2_302LV | VB2_302ELV | VB2_307LV)
344 #define VB2_LCD162MHZBRIDGE (VB2_301C | VB2_307T)
345 #define VB2_LCDOVER1280BRIDGE (VB2_301C | VB2_307T | VB2_302LV | VB2_302ELV | VB2_307LV)
346 #define VB2_LCDOVER1600BRIDGE (VB2_307T | VB2_307LV)
347 #define VB2_RAMDAC202MHZBRIDGE (VB2_301C | VB2_307T)
349 /* I/O port access macros */
350 #define inSISREG(base) inb(base)
352 #define outSISREG(base,val) outb(val,base)
354 #define orSISREG(base,val) \
356 u8 __Temp = inSISREG(base); \
357 outSISREG(base, __Temp | (val));\
360 #define andSISREG(base,val) \
362 u8 __Temp = inSISREG(base); \
363 outSISREG(base, __Temp & (val));\
366 #define inSISIDXREG(base,idx,var) \
368 outSISREG(base, idx); \
369 var = inSISREG((base)+1); \
372 #define outSISIDXREG(base,idx,val) \
374 outSISREG(base, idx); \
375 outSISREG((base)+1, val); \
378 #define orSISIDXREG(base,idx,val) \
381 outSISREG(base, idx); \
382 __Temp = inSISREG((base)+1) | (val); \
383 outSISREG((base)+1, __Temp); \
386 #define andSISIDXREG(base,idx,and) \
389 outSISREG(base, idx); \
390 __Temp = inSISREG((base)+1) & (and); \
391 outSISREG((base)+1, __Temp); \
394 #define setSISIDXREG(base,idx,and,or) \
397 outSISREG(base, idx); \
398 __Temp = (inSISREG((base)+1) & (and)) | (or); \
399 outSISREG((base)+1, __Temp); \
402 /* MMIO access macros */
403 #define MMIO_IN8(base, offset) readb((base+offset))
404 #define MMIO_IN16(base, offset) readw((base+offset))
405 #define MMIO_IN32(base, offset) readl((base+offset))
407 #define MMIO_OUT8(base, offset, val) writeb(((u8)(val)), (base+offset))
408 #define MMIO_OUT16(base, offset, val) writew(((u16)(val)), (base+offset))
409 #define MMIO_OUT32(base, offset, val) writel(((u32)(val)), (base+offset))
411 /* Queue control MMIO registers */
412 #define Q_BASE_ADDR 0x85C0 /* Base address of software queue */
413 #define Q_WRITE_PTR 0x85C4 /* Current write pointer */
414 #define Q_READ_PTR 0x85C8 /* Current read pointer */
415 #define Q_STATUS 0x85CC /* queue status */
417 #define MMIO_QUEUE_PHYBASE Q_BASE_ADDR
418 #define MMIO_QUEUE_WRITEPORT Q_WRITE_PTR
419 #define MMIO_QUEUE_READPORT Q_READ_PTR
421 #ifndef FB_BLANK_UNBLANK
422 #define FB_BLANK_UNBLANK 0
424 #ifndef FB_BLANK_NORMAL
425 #define FB_BLANK_NORMAL 1
427 #ifndef FB_BLANK_VSYNC_SUSPEND
428 #define FB_BLANK_VSYNC_SUSPEND 2
430 #ifndef FB_BLANK_HSYNC_SUSPEND
431 #define FB_BLANK_HSYNC_SUSPEND 3
433 #ifndef FB_BLANK_POWERDOWN
434 #define FB_BLANK_POWERDOWN 4
447 LCD_320x240, /* FSTN */
453 LCD_320x240_2, /* DSTN */
454 LCD_320x240_3, /* DSTN */
471 struct SIS_OH *poh_next;
472 struct SIS_OH *poh_prev;
478 struct SIS_OHALLOC *poha_next;
479 struct SIS_OH aoh[1];
483 struct SIS_OH oh_free;
484 struct SIS_OH oh_used;
485 struct SIS_OH *poh_freelist;
486 struct SIS_OHALLOC *poha_chain;
488 struct sis_video_info *vinfo;
492 struct sis_video_info {
494 struct fb_info *memyselfandi;
496 struct SiS_Private SiS_Pr;
498 struct sisfb_info sisfbinfo; /* For ioctl SISFB_GET_INFO */
500 struct fb_var_screeninfo default_var;
502 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
503 struct fb_fix_screeninfo sisfb_fix;
504 u32 pseudo_palette[17];
507 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
508 struct display sis_disp;
509 struct display_switch sisfb_sw;
511 u16 red, green, blue, pad;
514 #ifdef FBCON_HAS_CFB16
517 #ifdef FBCON_HAS_CFB32
523 struct sisfb_monitor {
533 unsigned short chip_id; /* PCI ID of chip */
534 unsigned short chip_vendor; /* PCI ID of vendor */
537 struct pci_dev *nbridge;
538 struct pci_dev *lpcdev;
540 int mni; /* Mode number index */
542 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
546 unsigned long video_size;
547 unsigned long video_base;
548 unsigned long mmio_size;
549 unsigned long mmio_base;
550 unsigned long vga_base;
552 unsigned long video_offset;
554 unsigned long UMAsize, LFBsize;
556 SIS_IOTYPE1 *video_vbase;
557 SIS_IOTYPE1 *mmio_vbase;
559 unsigned char *bios_abase;
581 int sisfb_nocrt2rate;
582 #if LINUX_VERSION_CODE < KERNEL_VERSION(2,5,0)
586 u32 heapstart; /* offset */
587 SIS_IOTYPE1 *sisfb_heap_start; /* address */
588 SIS_IOTYPE1 *sisfb_heap_end; /* address */
592 struct SIS_HEAP sisfb_heap; /* This card's vram heap */
598 unsigned int refresh_rate;
602 int sisvga_enabled; /* PCI device was enabled */
604 int video_linelength; /* real pitch */
605 int scrnpitchCRT1; /* pitch regarding interlace */
607 u16 DstColor; /* For 2d acceleration */
608 u32 SiS310_AccelDepth;
610 int cmdqueuelength; /* Current (for accel) */
611 u32 cmdQueueSize; /* Total size in KB */
613 spinlock_t lockaccel; /* Do not use outside of kernel! */
616 unsigned int pcislot;
617 unsigned int pcifunc;
625 u32 vbflags; /* Replacing deprecated stuff from above */
629 int lcdxres, lcdyres;
630 int lcddefmodeidx, tvdefmodeidx, defmodeidx;
631 u32 CRT2LCDType; /* defined in "SIS_LCD_TYPE" */
632 u32 curFSTN, curDSTN;
639 int current_linelength;
640 __u32 current_pixclock;
641 int current_refresh_rate;
643 unsigned int current_base;
648 unsigned char modeprechange;
650 #if LINUX_VERSION_CODE >= KERNEL_VERSION(2,5,0)
651 u8 sisfb_lastrates[128];
658 #ifdef SIS_OLD_CONFIG_COMPAT
659 int ioctl32registered;
664 int CRT2_write_enable;
671 SIS_IOTYPE1 *hwcursor_vbase;
675 u8 p2_1f,p2_20,p2_2b,p2_42,p2_43,p2_01,p2_02;
680 struct sisfb_info sisfb_infoblock;
682 struct sisfb_cmd sisfb_command;
687 u8 sisfb_card_posted;
688 u8 sisfb_was_boot_device;
690 struct sis_video_info *next;