viafb: reorder initialization for dual framebuffer mode
[linux-2.6.git] / drivers / video / via / viafbdev.c
1 /*
2  * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public
7  * License as published by the Free Software Foundation;
8  * either version 2, or (at your option) any later version.
9
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
13  * A PARTICULAR PURPOSE.See the GNU General Public License
14  * for more details.
15
16  * You should have received a copy of the GNU General Public License
17  * along with this program; if not, write to the Free Software
18  * Foundation, Inc.,
19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20  */
21
22 #include <linux/module.h>
23 #include <linux/seq_file.h>
24 #include <linux/stat.h>
25 #define _MASTER_FILE
26
27 #include "global.h"
28
29 static struct fb_var_screeninfo default_var;
30 static char *viafb_name = "Via";
31 static u32 pseudo_pal[17];
32
33 /* video mode */
34 static char *viafb_mode = "640x480";
35 static char *viafb_mode1 = "640x480";
36
37 static int viafb_accel = 1;
38
39 /* Added for specifying active devices.*/
40 char *viafb_active_dev = "";
41
42 /*Added for specify lcd output port*/
43 char *viafb_lcd_port = "";
44 char *viafb_dvi_port = "";
45
46 static void viafb_set_device(struct device_t active_dev);
47 static int apply_device_setting(struct viafb_ioctl_setting setting_info,
48                          struct fb_info *info);
49 static void apply_second_mode_setting(struct fb_var_screeninfo
50         *sec_var);
51 static void retrieve_device_setting(struct viafb_ioctl_setting
52         *setting_info);
53
54 static struct fb_ops viafb_ops;
55
56
57 static void viafb_update_fix(struct fb_info *info)
58 {
59         u32 bpp = info->var.bits_per_pixel;
60
61         info->fix.visual =
62                 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
63         info->fix.line_length =
64                 ((info->var.xres_virtual + 7) & ~7) * bpp / 8;
65 }
66
67 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
68         struct viafb_par *viaparinfo)
69 {
70         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
71         strcpy(fix->id, viafb_name);
72
73         fix->smem_start = viaparinfo->fbmem;
74         fix->smem_len = viaparinfo->fbmem_free;
75
76         fix->type = FB_TYPE_PACKED_PIXELS;
77         fix->type_aux = 0;
78
79         fix->xpanstep = fix->ywrapstep = 0;
80         fix->ypanstep = 1;
81
82         /* Just tell the accel name */
83         viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
84 }
85 static int viafb_open(struct fb_info *info, int user)
86 {
87         DEBUG_MSG(KERN_INFO "viafb_open!\n");
88         return 0;
89 }
90
91 static int viafb_release(struct fb_info *info, int user)
92 {
93         DEBUG_MSG(KERN_INFO "viafb_release!\n");
94         return 0;
95 }
96
97 static int viafb_check_var(struct fb_var_screeninfo *var,
98         struct fb_info *info)
99 {
100         int htotal, vtotal;
101         struct VideoModeTable *vmode_entry;
102         struct viafb_par *ppar = info->par;
103         u32 long_refresh;
104
105         DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
106         /* Sanity check */
107         /* HW neither support interlacte nor double-scaned mode */
108         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
109                 return -EINVAL;
110
111         vmode_entry = viafb_get_mode(var->xres, var->yres);
112         if (!vmode_entry) {
113                 DEBUG_MSG(KERN_INFO
114                           "viafb: Mode %dx%dx%d not supported!!\n",
115                           var->xres, var->yres, var->bits_per_pixel);
116                 return -EINVAL;
117         }
118
119         if (24 == var->bits_per_pixel)
120                 var->bits_per_pixel = 32;
121
122         if (var->bits_per_pixel != 8 && var->bits_per_pixel != 16 &&
123                 var->bits_per_pixel != 32)
124                 return -EINVAL;
125
126         if ((var->xres_virtual * (var->bits_per_pixel >> 3)) & 0x1F)
127                 /*32 pixel alignment */
128                 var->xres_virtual = (var->xres_virtual + 31) & ~31;
129         if (var->xres_virtual * var->yres_virtual * var->bits_per_pixel / 8 >
130                 ppar->memsize)
131                 return -EINVAL;
132
133         /* Based on var passed in to calculate the refresh,
134          * because our driver use some modes special.
135          */
136         htotal = var->xres + var->left_margin +
137         var->right_margin + var->hsync_len;
138         vtotal = var->yres + var->upper_margin +
139                 var->lower_margin + var->vsync_len;
140         long_refresh = 1000000000UL / var->pixclock * 1000;
141         long_refresh /= (htotal * vtotal);
142
143         viafb_refresh = viafb_get_refresh(var->xres, var->yres, long_refresh);
144
145         /* Adjust var according to our driver's own table */
146         viafb_fill_var_timing_info(var, viafb_refresh, vmode_entry);
147         if (info->var.accel_flags & FB_ACCELF_TEXT &&
148                 !ppar->shared->engine_mmio)
149                 info->var.accel_flags = 0;
150
151         return 0;
152 }
153
154 static int viafb_set_par(struct fb_info *info)
155 {
156         struct viafb_par *viapar = info->par;
157         struct VideoModeTable *vmode_entry, *vmode_entry1 = NULL;
158         DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
159
160         viapar->depth = fb_get_color_depth(&info->var, &info->fix);
161         viafb_update_device_setting(info->var.xres, info->var.yres,
162                               info->var.bits_per_pixel, viafb_refresh, 0);
163
164         vmode_entry = viafb_get_mode(info->var.xres, info->var.yres);
165         if (viafb_SAMM_ON == 1) {
166                 DEBUG_MSG(KERN_INFO
167                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
168                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
169                 vmode_entry1 = viafb_get_mode(viafb_second_xres,
170                         viafb_second_yres);
171
172                 viafb_update_device_setting(viafb_second_xres,
173                         viafb_second_yres, viafb_bpp1, viafb_refresh1, 1);
174         }
175
176         if (vmode_entry) {
177                 viafb_update_fix(info);
178                 viafb_bpp = info->var.bits_per_pixel;
179                 if (info->var.accel_flags & FB_ACCELF_TEXT)
180                         info->flags &= ~FBINFO_HWACCEL_DISABLED;
181                 else
182                         info->flags |= FBINFO_HWACCEL_DISABLED;
183                 viafb_setmode(vmode_entry, info->var.bits_per_pixel,
184                         vmode_entry1, viafb_bpp1);
185         }
186
187         return 0;
188 }
189
190 /* Set one color register */
191 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
192 unsigned blue, unsigned transp, struct fb_info *info)
193 {
194         u8 sr1a, sr1b, cr67, cr6a, rev = 0, shift = 10;
195         unsigned cmap_entries = (info->var.bits_per_pixel == 8) ? 256 : 16;
196         DEBUG_MSG(KERN_INFO "viafb_setcolreg!\n");
197         if (regno >= cmap_entries)
198                 return 1;
199         if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name) {
200                 /*
201                  * Read PCI bus 0,dev 0,function 0,index 0xF6 to get chip rev.
202                  */
203                 outl(0x80000000 | (0xf6 & ~3), (unsigned long)0xCF8);
204                 rev = (inl((unsigned long)0xCFC) >> ((0xf6 & 3) * 8)) & 0xff;
205         }
206         switch (info->var.bits_per_pixel) {
207         case 8:
208                 outb(0x1A, 0x3C4);
209                 sr1a = inb(0x3C5);
210                 outb(0x1B, 0x3C4);
211                 sr1b = inb(0x3C5);
212                 outb(0x67, 0x3D4);
213                 cr67 = inb(0x3D5);
214                 outb(0x6A, 0x3D4);
215                 cr6a = inb(0x3D5);
216
217                 /* Map the 3C6/7/8/9 to the IGA2 */
218                 outb(0x1A, 0x3C4);
219                 outb(sr1a | 0x01, 0x3C5);
220                 /* Second Display Engine colck always on */
221                 outb(0x1B, 0x3C4);
222                 outb(sr1b | 0x80, 0x3C5);
223                 /* Second Display Color Depth 8 */
224                 outb(0x67, 0x3D4);
225                 outb(cr67 & 0x3F, 0x3D5);
226                 outb(0x6A, 0x3D4);
227                 /* Second Display Channel Reset CR6A[6]) */
228                 outb(cr6a & 0xBF, 0x3D5);
229                 /* Second Display Channel Enable CR6A[7] */
230                 outb(cr6a | 0x80, 0x3D5);
231                 /* Second Display Channel stop reset) */
232                 outb(cr6a | 0x40, 0x3D5);
233
234                 /* Bit mask of palette */
235                 outb(0xFF, 0x3c6);
236                 /* Write one register of IGA2 */
237                 outb(regno, 0x3C8);
238                 if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name &&
239                         rev >= 15) {
240                         shift = 8;
241                         viafb_write_reg_mask(CR6A, VIACR, BIT5, BIT5);
242                         viafb_write_reg_mask(SR15, VIASR, BIT7, BIT7);
243                 } else {
244                         shift = 10;
245                         viafb_write_reg_mask(CR6A, VIACR, 0, BIT5);
246                         viafb_write_reg_mask(SR15, VIASR, 0, BIT7);
247                 }
248                 outb(red >> shift, 0x3C9);
249                 outb(green >> shift, 0x3C9);
250                 outb(blue >> shift, 0x3C9);
251
252                 /* Map the 3C6/7/8/9 to the IGA1 */
253                 outb(0x1A, 0x3C4);
254                 outb(sr1a & 0xFE, 0x3C5);
255                 /* Bit mask of palette */
256                 outb(0xFF, 0x3c6);
257                 /* Write one register of IGA1 */
258                 outb(regno, 0x3C8);
259                 outb(red >> shift, 0x3C9);
260                 outb(green >> shift, 0x3C9);
261                 outb(blue >> shift, 0x3C9);
262
263                 outb(0x1A, 0x3C4);
264                 outb(sr1a, 0x3C5);
265                 outb(0x1B, 0x3C4);
266                 outb(sr1b, 0x3C5);
267                 outb(0x67, 0x3D4);
268                 outb(cr67, 0x3D5);
269                 outb(0x6A, 0x3D4);
270                 outb(cr6a, 0x3D5);
271                 break;
272         case 16:
273                 ((u32 *) info->pseudo_palette)[regno] = (red & 0xF800) |
274                     ((green & 0xFC00) >> 5) | ((blue & 0xF800) >> 11);
275                 break;
276         case 32:
277                 ((u32 *) info->pseudo_palette)[regno] =
278                     ((transp & 0xFF00) << 16) |
279                     ((red & 0xFF00) << 8) |
280                     ((green & 0xFF00)) | ((blue & 0xFF00) >> 8);
281                 break;
282         }
283
284         return 0;
285
286 }
287
288 /*CALLED BY: fb_set_cmap */
289 /*           fb_set_var, pass 256 colors */
290 /*CALLED BY: fb_set_cmap */
291 /*           fbcon_set_palette, pass 16 colors */
292 static int viafb_setcmap(struct fb_cmap *cmap, struct fb_info *info)
293 {
294         u32 len = cmap->len;
295         u32 i;
296         u16 *pred = cmap->red;
297         u16 *pgreen = cmap->green;
298         u16 *pblue = cmap->blue;
299         u16 *ptransp = cmap->transp;
300         u8 sr1a, sr1b, cr67, cr6a, rev = 0, shift = 10;
301         if (len > 256)
302                 return 1;
303         if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name) {
304                 /*
305                  * Read PCI bus 0, dev 0, function 0, index 0xF6 to get chip
306                  * rev.
307                  */
308                 outl(0x80000000 | (0xf6 & ~3), (unsigned long)0xCF8);
309                 rev = (inl((unsigned long)0xCFC) >> ((0xf6 & 3) * 8)) & 0xff;
310         }
311         switch (info->var.bits_per_pixel) {
312         case 8:
313                 outb(0x1A, 0x3C4);
314                 sr1a = inb(0x3C5);
315                 outb(0x1B, 0x3C4);
316                 sr1b = inb(0x3C5);
317                 outb(0x67, 0x3D4);
318                 cr67 = inb(0x3D5);
319                 outb(0x6A, 0x3D4);
320                 cr6a = inb(0x3D5);
321                 /* Map the 3C6/7/8/9 to the IGA2 */
322                 outb(0x1A, 0x3C4);
323                 outb(sr1a | 0x01, 0x3C5);
324                 outb(0x1B, 0x3C4);
325                 /* Second Display Engine colck always on */
326                 outb(sr1b | 0x80, 0x3C5);
327                 outb(0x67, 0x3D4);
328                 /* Second Display Color Depth 8 */
329                 outb(cr67 & 0x3F, 0x3D5);
330                 outb(0x6A, 0x3D4);
331                 /* Second Display Channel Reset CR6A[6]) */
332                 outb(cr6a & 0xBF, 0x3D5);
333                 /* Second Display Channel Enable CR6A[7] */
334                 outb(cr6a | 0x80, 0x3D5);
335                 /* Second Display Channel stop reset) */
336                 outb(cr6a | 0xC0, 0x3D5);
337
338                 /* Bit mask of palette */
339                 outb(0xFF, 0x3c6);
340                 outb(0x00, 0x3C8);
341                 if (UNICHROME_CLE266 == viaparinfo->chip_info->gfx_chip_name &&
342                         rev >= 15) {
343                         shift = 8;
344                         viafb_write_reg_mask(CR6A, VIACR, BIT5, BIT5);
345                         viafb_write_reg_mask(SR15, VIASR, BIT7, BIT7);
346                 } else {
347                         shift = 10;
348                         viafb_write_reg_mask(CR6A, VIACR, 0, BIT5);
349                         viafb_write_reg_mask(SR15, VIASR, 0, BIT7);
350                 }
351                 for (i = 0; i < len; i++) {
352                         outb((*(pred + i)) >> shift, 0x3C9);
353                         outb((*(pgreen + i)) >> shift, 0x3C9);
354                         outb((*(pblue + i)) >> shift, 0x3C9);
355                 }
356
357                 outb(0x1A, 0x3C4);
358                 /* Map the 3C6/7/8/9 to the IGA1 */
359                 outb(sr1a & 0xFE, 0x3C5);
360                 /* Bit mask of palette */
361                 outb(0xFF, 0x3c6);
362                 outb(0x00, 0x3C8);
363                 for (i = 0; i < len; i++) {
364                         outb((*(pred + i)) >> shift, 0x3C9);
365                         outb((*(pgreen + i)) >> shift, 0x3C9);
366                         outb((*(pblue + i)) >> shift, 0x3C9);
367                 }
368
369                 outb(0x1A, 0x3C4);
370                 outb(sr1a, 0x3C5);
371                 outb(0x1B, 0x3C4);
372                 outb(sr1b, 0x3C5);
373                 outb(0x67, 0x3D4);
374                 outb(cr67, 0x3D5);
375                 outb(0x6A, 0x3D4);
376                 outb(cr6a, 0x3D5);
377                 break;
378         case 16:
379                 if (len > 17)
380                         return 0;       /* Because static u32 pseudo_pal[17]; */
381                 for (i = 0; i < len; i++)
382                         ((u32 *) info->pseudo_palette)[i] =
383                             (*(pred + i) & 0xF800) |
384                             ((*(pgreen + i) & 0xFC00) >> 5) |
385                             ((*(pblue + i) & 0xF800) >> 11);
386                 break;
387         case 32:
388                 if (len > 17)
389                         return 0;
390                 if (ptransp) {
391                         for (i = 0; i < len; i++)
392                                 ((u32 *) info->pseudo_palette)[i] =
393                                     ((*(ptransp + i) & 0xFF00) << 16) |
394                                     ((*(pred + i) & 0xFF00) << 8) |
395                                     ((*(pgreen + i) & 0xFF00)) |
396                                     ((*(pblue + i) & 0xFF00) >> 8);
397                 } else {
398                         for (i = 0; i < len; i++)
399                                 ((u32 *) info->pseudo_palette)[i] =
400                                     0x00000000 |
401                                     ((*(pred + i) & 0xFF00) << 8) |
402                                     ((*(pgreen + i) & 0xFF00)) |
403                                     ((*(pblue + i) & 0xFF00) >> 8);
404                 }
405                 break;
406         }
407         return 0;
408 }
409
410 static int viafb_pan_display(struct fb_var_screeninfo *var,
411         struct fb_info *info)
412 {
413         unsigned int offset;
414
415         DEBUG_MSG(KERN_INFO "viafb_pan_display!\n");
416
417         offset = (var->xoffset + (var->yoffset * var->xres_virtual)) *
418             var->bits_per_pixel / 16;
419
420         DEBUG_MSG(KERN_INFO "\nviafb_pan_display,offset =%d ", offset);
421         viafb_set_primary_address(offset);
422         return 0;
423 }
424
425 static int viafb_blank(int blank_mode, struct fb_info *info)
426 {
427         DEBUG_MSG(KERN_INFO "viafb_blank!\n");
428         /* clear DPMS setting */
429
430         switch (blank_mode) {
431         case FB_BLANK_UNBLANK:
432                 /* Screen: On, HSync: On, VSync: On */
433                 /* control CRT monitor power management */
434                 viafb_write_reg_mask(CR36, VIACR, 0x00, BIT4 + BIT5);
435                 break;
436         case FB_BLANK_HSYNC_SUSPEND:
437                 /* Screen: Off, HSync: Off, VSync: On */
438                 /* control CRT monitor power management */
439                 viafb_write_reg_mask(CR36, VIACR, 0x10, BIT4 + BIT5);
440                 break;
441         case FB_BLANK_VSYNC_SUSPEND:
442                 /* Screen: Off, HSync: On, VSync: Off */
443                 /* control CRT monitor power management */
444                 viafb_write_reg_mask(CR36, VIACR, 0x20, BIT4 + BIT5);
445                 break;
446         case FB_BLANK_POWERDOWN:
447                 /* Screen: Off, HSync: Off, VSync: Off */
448                 /* control CRT monitor power management */
449                 viafb_write_reg_mask(CR36, VIACR, 0x30, BIT4 + BIT5);
450                 break;
451         }
452
453         return 0;
454 }
455
456 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
457 {
458         union {
459                 struct viafb_ioctl_mode viamode;
460                 struct viafb_ioctl_samm viasamm;
461                 struct viafb_driver_version driver_version;
462                 struct fb_var_screeninfo sec_var;
463                 struct _panel_size_pos_info panel_pos_size_para;
464                 struct viafb_ioctl_setting viafb_setting;
465                 struct device_t active_dev;
466         } u;
467         u32 state_info = 0;
468         u32 *viafb_gamma_table;
469         char driver_name[] = "viafb";
470
471         u32 __user *argp = (u32 __user *) arg;
472         u32 gpu32;
473
474         DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
475         printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
476         memset(&u, 0, sizeof(u));
477
478         switch (cmd) {
479         case VIAFB_GET_CHIP_INFO:
480                 if (copy_to_user(argp, viaparinfo->chip_info,
481                                 sizeof(struct chip_information)))
482                         return -EFAULT;
483                 break;
484         case VIAFB_GET_INFO_SIZE:
485                 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
486         case VIAFB_GET_INFO:
487                 return viafb_ioctl_get_viafb_info(arg);
488         case VIAFB_HOTPLUG:
489                 return put_user(viafb_ioctl_hotplug(info->var.xres,
490                                               info->var.yres,
491                                               info->var.bits_per_pixel), argp);
492         case VIAFB_SET_HOTPLUG_FLAG:
493                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
494                         return -EFAULT;
495                 viafb_hotplug = (gpu32) ? 1 : 0;
496                 break;
497         case VIAFB_GET_RESOLUTION:
498                 u.viamode.xres = (u32) viafb_hotplug_Xres;
499                 u.viamode.yres = (u32) viafb_hotplug_Yres;
500                 u.viamode.refresh = (u32) viafb_hotplug_refresh;
501                 u.viamode.bpp = (u32) viafb_hotplug_bpp;
502                 if (viafb_SAMM_ON == 1) {
503                         u.viamode.xres_sec = viafb_second_xres;
504                         u.viamode.yres_sec = viafb_second_yres;
505                         u.viamode.virtual_xres_sec = viafb_second_virtual_xres;
506                         u.viamode.virtual_yres_sec = viafb_second_virtual_yres;
507                         u.viamode.refresh_sec = viafb_refresh1;
508                         u.viamode.bpp_sec = viafb_bpp1;
509                 } else {
510                         u.viamode.xres_sec = 0;
511                         u.viamode.yres_sec = 0;
512                         u.viamode.virtual_xres_sec = 0;
513                         u.viamode.virtual_yres_sec = 0;
514                         u.viamode.refresh_sec = 0;
515                         u.viamode.bpp_sec = 0;
516                 }
517                 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
518                         return -EFAULT;
519                 break;
520         case VIAFB_GET_SAMM_INFO:
521                 u.viasamm.samm_status = viafb_SAMM_ON;
522
523                 if (viafb_SAMM_ON == 1) {
524                         if (viafb_dual_fb) {
525                                 u.viasamm.size_prim = viaparinfo->fbmem_free;
526                                 u.viasamm.size_sec = viaparinfo1->fbmem_free;
527                         } else {
528                                 if (viafb_second_size) {
529                                         u.viasamm.size_prim =
530                                             viaparinfo->fbmem_free -
531                                             viafb_second_size * 1024 * 1024;
532                                         u.viasamm.size_sec =
533                                             viafb_second_size * 1024 * 1024;
534                                 } else {
535                                         u.viasamm.size_prim =
536                                             viaparinfo->fbmem_free >> 1;
537                                         u.viasamm.size_sec =
538                                             (viaparinfo->fbmem_free >> 1);
539                                 }
540                         }
541                         u.viasamm.mem_base = viaparinfo->fbmem;
542                         u.viasamm.offset_sec = viafb_second_offset;
543                 } else {
544                         u.viasamm.size_prim =
545                             viaparinfo->memsize - viaparinfo->fbmem_used;
546                         u.viasamm.size_sec = 0;
547                         u.viasamm.mem_base = viaparinfo->fbmem;
548                         u.viasamm.offset_sec = 0;
549                 }
550
551                 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
552                         return -EFAULT;
553
554                 break;
555         case VIAFB_TURN_ON_OUTPUT_DEVICE:
556                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
557                         return -EFAULT;
558                 if (gpu32 & CRT_Device)
559                         viafb_crt_enable();
560                 if (gpu32 & DVI_Device)
561                         viafb_dvi_enable();
562                 if (gpu32 & LCD_Device)
563                         viafb_lcd_enable();
564                 break;
565         case VIAFB_TURN_OFF_OUTPUT_DEVICE:
566                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
567                         return -EFAULT;
568                 if (gpu32 & CRT_Device)
569                         viafb_crt_disable();
570                 if (gpu32 & DVI_Device)
571                         viafb_dvi_disable();
572                 if (gpu32 & LCD_Device)
573                         viafb_lcd_disable();
574                 break;
575         case VIAFB_SET_DEVICE:
576                 if (copy_from_user(&u.active_dev, (void *)argp,
577                         sizeof(u.active_dev)))
578                         return -EFAULT;
579                 viafb_set_device(u.active_dev);
580                 viafb_set_par(info);
581                 break;
582         case VIAFB_GET_DEVICE:
583                 u.active_dev.crt = viafb_CRT_ON;
584                 u.active_dev.dvi = viafb_DVI_ON;
585                 u.active_dev.lcd = viafb_LCD_ON;
586                 u.active_dev.samm = viafb_SAMM_ON;
587                 u.active_dev.primary_dev = viafb_primary_dev;
588
589                 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
590                 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
591                 u.active_dev.lcd_mode = viafb_lcd_mode;
592
593                 u.active_dev.xres = viafb_hotplug_Xres;
594                 u.active_dev.yres = viafb_hotplug_Yres;
595
596                 u.active_dev.xres1 = viafb_second_xres;
597                 u.active_dev.yres1 = viafb_second_yres;
598
599                 u.active_dev.bpp = viafb_bpp;
600                 u.active_dev.bpp1 = viafb_bpp1;
601                 u.active_dev.refresh = viafb_refresh;
602                 u.active_dev.refresh1 = viafb_refresh1;
603
604                 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
605                 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
606                 u.active_dev.bus_width = viafb_bus_width;
607
608                 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
609                         return -EFAULT;
610                 break;
611
612         case VIAFB_GET_DRIVER_VERSION:
613                 u.driver_version.iMajorNum = VERSION_MAJOR;
614                 u.driver_version.iKernelNum = VERSION_KERNEL;
615                 u.driver_version.iOSNum = VERSION_OS;
616                 u.driver_version.iMinorNum = VERSION_MINOR;
617
618                 if (copy_to_user(argp, &u.driver_version,
619                         sizeof(u.driver_version)))
620                         return -EFAULT;
621
622                 break;
623
624         case VIAFB_SET_DEVICE_INFO:
625                 if (copy_from_user(&u.viafb_setting,
626                         argp, sizeof(u.viafb_setting)))
627                         return -EFAULT;
628                 if (apply_device_setting(u.viafb_setting, info) < 0)
629                         return -EINVAL;
630
631                 break;
632
633         case VIAFB_SET_SECOND_MODE:
634                 if (copy_from_user(&u.sec_var, argp, sizeof(u.sec_var)))
635                         return -EFAULT;
636                 apply_second_mode_setting(&u.sec_var);
637                 break;
638
639         case VIAFB_GET_DEVICE_INFO:
640
641                 retrieve_device_setting(&u.viafb_setting);
642
643                 if (copy_to_user(argp, &u.viafb_setting,
644                                  sizeof(u.viafb_setting)))
645                         return -EFAULT;
646
647                 break;
648
649         case VIAFB_GET_DEVICE_SUPPORT:
650                 viafb_get_device_support_state(&state_info);
651                 if (put_user(state_info, argp))
652                         return -EFAULT;
653                 break;
654
655         case VIAFB_GET_DEVICE_CONNECT:
656                 viafb_get_device_connect_state(&state_info);
657                 if (put_user(state_info, argp))
658                         return -EFAULT;
659                 break;
660
661         case VIAFB_GET_PANEL_SUPPORT_EXPAND:
662                 state_info =
663                     viafb_lcd_get_support_expand_state(info->var.xres,
664                                                  info->var.yres);
665                 if (put_user(state_info, argp))
666                         return -EFAULT;
667                 break;
668
669         case VIAFB_GET_DRIVER_NAME:
670                 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
671                         return -EFAULT;
672                 break;
673
674         case VIAFB_SET_GAMMA_LUT:
675                 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
676                 if (!viafb_gamma_table)
677                         return -ENOMEM;
678                 if (copy_from_user(viafb_gamma_table, argp,
679                                 256 * sizeof(u32))) {
680                         kfree(viafb_gamma_table);
681                         return -EFAULT;
682                 }
683                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
684                 kfree(viafb_gamma_table);
685                 break;
686
687         case VIAFB_GET_GAMMA_LUT:
688                 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
689                 if (!viafb_gamma_table)
690                         return -ENOMEM;
691                 viafb_get_gamma_table(viafb_gamma_table);
692                 if (copy_to_user(argp, viafb_gamma_table,
693                         256 * sizeof(u32))) {
694                         kfree(viafb_gamma_table);
695                         return -EFAULT;
696                 }
697                 kfree(viafb_gamma_table);
698                 break;
699
700         case VIAFB_GET_GAMMA_SUPPORT_STATE:
701                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
702                 if (put_user(state_info, argp))
703                         return -EFAULT;
704                 break;
705         case VIAFB_SYNC_SURFACE:
706                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
707                 break;
708         case VIAFB_GET_DRIVER_CAPS:
709                 break;
710
711         case VIAFB_GET_PANEL_MAX_SIZE:
712                 if (copy_from_user(&u.panel_pos_size_para, argp,
713                                    sizeof(u.panel_pos_size_para)))
714                         return -EFAULT;
715                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
716                 if (copy_to_user(argp, &u.panel_pos_size_para,
717                      sizeof(u.panel_pos_size_para)))
718                         return -EFAULT;
719                 break;
720         case VIAFB_GET_PANEL_MAX_POSITION:
721                 if (copy_from_user(&u.panel_pos_size_para, argp,
722                                    sizeof(u.panel_pos_size_para)))
723                         return -EFAULT;
724                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
725                 if (copy_to_user(argp, &u.panel_pos_size_para,
726                                  sizeof(u.panel_pos_size_para)))
727                         return -EFAULT;
728                 break;
729
730         case VIAFB_GET_PANEL_POSITION:
731                 if (copy_from_user(&u.panel_pos_size_para, argp,
732                                    sizeof(u.panel_pos_size_para)))
733                         return -EFAULT;
734                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
735                 if (copy_to_user(argp, &u.panel_pos_size_para,
736                                  sizeof(u.panel_pos_size_para)))
737                         return -EFAULT;
738                 break;
739         case VIAFB_GET_PANEL_SIZE:
740                 if (copy_from_user(&u.panel_pos_size_para, argp,
741                                    sizeof(u.panel_pos_size_para)))
742                         return -EFAULT;
743                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
744                 if (copy_to_user(argp, &u.panel_pos_size_para,
745                                  sizeof(u.panel_pos_size_para)))
746                         return -EFAULT;
747                 break;
748
749         case VIAFB_SET_PANEL_POSITION:
750                 if (copy_from_user(&u.panel_pos_size_para, argp,
751                                    sizeof(u.panel_pos_size_para)))
752                         return -EFAULT;
753                 break;
754         case VIAFB_SET_PANEL_SIZE:
755                 if (copy_from_user(&u.panel_pos_size_para, argp,
756                                    sizeof(u.panel_pos_size_para)))
757                         return -EFAULT;
758                 break;
759
760         default:
761                 return -EINVAL;
762         }
763
764         return 0;
765 }
766
767 static void viafb_fillrect(struct fb_info *info,
768         const struct fb_fillrect *rect)
769 {
770         struct viafb_par *viapar = info->par;
771         struct viafb_shared *shared = viapar->shared;
772         u32 fg_color;
773         u8 rop;
774
775         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
776                 cfb_fillrect(info, rect);
777                 return;
778         }
779
780         if (!rect->width || !rect->height)
781                 return;
782
783         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
784                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
785         else
786                 fg_color = rect->color;
787
788         if (rect->rop == ROP_XOR)
789                 rop = 0x5A;
790         else
791                 rop = 0xF0;
792
793         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
794         if (shared->hw_bitblt(shared->engine_mmio, VIA_BITBLT_FILL,
795                 rect->width, rect->height, info->var.bits_per_pixel,
796                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
797                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
798                 cfb_fillrect(info, rect);
799 }
800
801 static void viafb_copyarea(struct fb_info *info,
802         const struct fb_copyarea *area)
803 {
804         struct viafb_par *viapar = info->par;
805         struct viafb_shared *shared = viapar->shared;
806
807         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
808                 cfb_copyarea(info, area);
809                 return;
810         }
811
812         if (!area->width || !area->height)
813                 return;
814
815         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
816         if (shared->hw_bitblt(shared->engine_mmio, VIA_BITBLT_COLOR,
817                 area->width, area->height, info->var.bits_per_pixel,
818                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
819                 NULL, viapar->vram_addr, info->fix.line_length,
820                 area->sx, area->sy, 0, 0, 0))
821                 cfb_copyarea(info, area);
822 }
823
824 static void viafb_imageblit(struct fb_info *info,
825         const struct fb_image *image)
826 {
827         struct viafb_par *viapar = info->par;
828         struct viafb_shared *shared = viapar->shared;
829         u32 fg_color = 0, bg_color = 0;
830         u8 op;
831
832         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
833                 (image->depth != 1 && image->depth != viapar->depth)) {
834                 cfb_imageblit(info, image);
835                 return;
836         }
837
838         if (image->depth == 1) {
839                 op = VIA_BITBLT_MONO;
840                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
841                         fg_color =
842                                 ((u32 *)info->pseudo_palette)[image->fg_color];
843                         bg_color =
844                                 ((u32 *)info->pseudo_palette)[image->bg_color];
845                 } else {
846                         fg_color = image->fg_color;
847                         bg_color = image->bg_color;
848                 }
849         } else
850                 op = VIA_BITBLT_COLOR;
851
852         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
853         if (shared->hw_bitblt(shared->engine_mmio, op,
854                 image->width, image->height, info->var.bits_per_pixel,
855                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
856                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
857                 cfb_imageblit(info, image);
858 }
859
860 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
861 {
862         struct viafb_par *viapar = info->par;
863         void __iomem *engine = viapar->shared->engine_mmio;
864         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
865                 chip_name = viapar->shared->chip_info.gfx_chip_name;
866         int i, j = 0, cur_size = 64;
867
868         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
869                 return -ENODEV;
870
871         /* LCD ouput does not support hw cursors (at least on VN896) */
872         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
873                 viafb_LCD_ON)
874                 return -ENODEV;
875
876         viafb_show_hw_cursor(info, HW_Cursor_OFF);
877
878         if (cursor->set & FB_CUR_SETHOT) {
879                 temp = (cursor->hot.x << 16) + cursor->hot.y;
880                 writel(temp, engine + VIA_REG_CURSOR_ORG);
881         }
882
883         if (cursor->set & FB_CUR_SETPOS) {
884                 yy = cursor->image.dy - info->var.yoffset;
885                 xx = cursor->image.dx - info->var.xoffset;
886                 temp = yy & 0xFFFF;
887                 temp |= (xx << 16);
888                 writel(temp, engine + VIA_REG_CURSOR_POS);
889         }
890
891         if (cursor->image.width <= 32 && cursor->image.height <= 32)
892                 cur_size = 32;
893         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
894                 cur_size = 64;
895         else {
896                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
897                         "%dx%d", cursor->image.width, cursor->image.height);
898                 return -ENXIO;
899         }
900
901         if (cursor->set & FB_CUR_SETSIZE) {
902                 temp = readl(engine + VIA_REG_CURSOR_MODE);
903                 if (cur_size == 32)
904                         temp |= 0x2;
905                 else
906                         temp &= ~0x2;
907
908                 writel(temp, engine + VIA_REG_CURSOR_MODE);
909         }
910
911         if (cursor->set & FB_CUR_SETCMAP) {
912                 fg_color = cursor->image.fg_color;
913                 bg_color = cursor->image.bg_color;
914                 if (chip_name == UNICHROME_CX700 ||
915                         chip_name == UNICHROME_VX800 ||
916                         chip_name == UNICHROME_VX855) {
917                         fg_color =
918                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
919                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
920                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
921                         bg_color =
922                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
923                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
924                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
925                 } else {
926                         fg_color =
927                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
928                                 (info->cmap.green[fg_color] & 0xFF00) |
929                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
930                         bg_color =
931                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
932                                 (info->cmap.green[bg_color] & 0xFF00) |
933                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
934                 }
935
936                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
937                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
938         }
939
940         if (cursor->set & FB_CUR_SETSHAPE) {
941                 struct {
942                         u8 data[CURSOR_SIZE];
943                         u32 bak[CURSOR_SIZE / 4];
944                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
945                 int size = ((cursor->image.width + 7) >> 3) *
946                         cursor->image.height;
947
948                 if (!cr_data)
949                         return -ENOMEM;
950
951                 if (cur_size == 32) {
952                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
953                                 cr_data->bak[i] = 0x0;
954                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
955                                 i += 1;
956                         }
957                 } else {
958                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
959                                 cr_data->bak[i] = 0x0;
960                                 cr_data->bak[i + 1] = 0x0;
961                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
962                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
963                                 i += 3;
964                         }
965                 }
966
967                 switch (cursor->rop) {
968                 case ROP_XOR:
969                         for (i = 0; i < size; i++)
970                                 cr_data->data[i] = cursor->mask[i];
971                         break;
972                 case ROP_COPY:
973
974                         for (i = 0; i < size; i++)
975                                 cr_data->data[i] = cursor->mask[i];
976                         break;
977                 default:
978                         break;
979                 }
980
981                 if (cur_size == 32) {
982                         for (i = 0; i < size; i++) {
983                                 cr_data->bak[j] = (u32) cr_data->data[i];
984                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
985                                 j += 2;
986                         }
987                 } else {
988                         for (i = 0; i < size; i++) {
989                                 cr_data->bak[j] = (u32) cr_data->data[i];
990                                 cr_data->bak[j + 1] = 0x0;
991                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
992                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
993                                 j += 4;
994                         }
995                 }
996
997                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
998                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
999                 kfree(cr_data);
1000         }
1001
1002         if (cursor->enable)
1003                 viafb_show_hw_cursor(info, HW_Cursor_ON);
1004
1005         return 0;
1006 }
1007
1008 static int viafb_sync(struct fb_info *info)
1009 {
1010         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1011                 viafb_wait_engine_idle(info);
1012         return 0;
1013 }
1014
1015 static void check_available_device_to_enable(int device_id)
1016 {
1017         int device_num = 0;
1018
1019         /* Initialize: */
1020         viafb_CRT_ON = STATE_OFF;
1021         viafb_DVI_ON = STATE_OFF;
1022         viafb_LCD_ON = STATE_OFF;
1023         viafb_LCD2_ON = STATE_OFF;
1024         viafb_DeviceStatus = None_Device;
1025
1026         if ((device_id & CRT_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
1027                 viafb_CRT_ON = STATE_ON;
1028                 device_num++;
1029                 viafb_DeviceStatus |= CRT_Device;
1030         }
1031
1032         if ((device_id & DVI_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
1033                 viafb_DVI_ON = STATE_ON;
1034                 device_num++;
1035                 viafb_DeviceStatus |= DVI_Device;
1036         }
1037
1038         if ((device_id & LCD_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
1039                 viafb_LCD_ON = STATE_ON;
1040                 device_num++;
1041                 viafb_DeviceStatus |= LCD_Device;
1042         }
1043
1044         if ((device_id & LCD2_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
1045                 viafb_LCD2_ON = STATE_ON;
1046                 device_num++;
1047                 viafb_DeviceStatus |= LCD2_Device;
1048         }
1049
1050         if (viafb_DeviceStatus == None_Device) {
1051                 /* Use CRT as default active device: */
1052                 viafb_CRT_ON = STATE_ON;
1053                 viafb_DeviceStatus = CRT_Device;
1054         }
1055         DEBUG_MSG(KERN_INFO "Device Status:%x", viafb_DeviceStatus);
1056 }
1057
1058 static void viafb_set_device(struct device_t active_dev)
1059 {
1060         /* Check available device to enable: */
1061         int device_id = None_Device;
1062         if (active_dev.crt)
1063                 device_id |= CRT_Device;
1064         if (active_dev.dvi)
1065                 device_id |= DVI_Device;
1066         if (active_dev.lcd)
1067                 device_id |= LCD_Device;
1068
1069         check_available_device_to_enable(device_id);
1070
1071         /* Check property of LCD: */
1072         if (viafb_LCD_ON) {
1073                 if (active_dev.lcd_dsp_cent) {
1074                         viaparinfo->lvds_setting_info->display_method =
1075                                 viafb_lcd_dsp_method = LCD_CENTERING;
1076                 } else {
1077                         viaparinfo->lvds_setting_info->display_method =
1078                                 viafb_lcd_dsp_method = LCD_EXPANDSION;
1079                 }
1080
1081                 if (active_dev.lcd_mode == LCD_SPWG) {
1082                         viaparinfo->lvds_setting_info->lcd_mode =
1083                                 viafb_lcd_mode = LCD_SPWG;
1084                 } else {
1085                         viaparinfo->lvds_setting_info->lcd_mode =
1086                                 viafb_lcd_mode = LCD_OPENLDI;
1087                 }
1088
1089                 if (active_dev.lcd_panel_id <= LCD_PANEL_ID_MAXIMUM) {
1090                         viafb_lcd_panel_id = active_dev.lcd_panel_id;
1091                         viafb_init_lcd_size();
1092                 }
1093         }
1094
1095         /* Check property of mode: */
1096         if (!active_dev.xres1)
1097                 viafb_second_xres = 640;
1098         else
1099                 viafb_second_xres = active_dev.xres1;
1100         if (!active_dev.yres1)
1101                 viafb_second_yres = 480;
1102         else
1103                 viafb_second_yres = active_dev.yres1;
1104         if (active_dev.bpp != 0)
1105                 viafb_bpp = active_dev.bpp;
1106         if (active_dev.bpp1 != 0)
1107                 viafb_bpp1 = active_dev.bpp1;
1108         if (active_dev.refresh != 0)
1109                 viafb_refresh = active_dev.refresh;
1110         if (active_dev.refresh1 != 0)
1111                 viafb_refresh1 = active_dev.refresh1;
1112         if ((active_dev.samm == STATE_OFF) || (active_dev.samm == STATE_ON))
1113                 viafb_SAMM_ON = active_dev.samm;
1114         viafb_primary_dev = active_dev.primary_dev;
1115
1116         viafb_set_primary_address(0);
1117         viafb_set_secondary_address(viafb_SAMM_ON ? viafb_second_offset : 0);
1118         viafb_set_iga_path();
1119 }
1120
1121 static int get_primary_device(void)
1122 {
1123         int primary_device = 0;
1124         /* Rule: device on iga1 path are the primary device. */
1125         if (viafb_SAMM_ON) {
1126                 if (viafb_CRT_ON) {
1127                         if (viaparinfo->crt_setting_info->iga_path == IGA1) {
1128                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n",
1129                                         viaparinfo->
1130                                         crt_setting_info->iga_path);
1131                                 primary_device = CRT_Device;
1132                         }
1133                 }
1134                 if (viafb_DVI_ON) {
1135                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
1136                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
1137                                         viaparinfo->
1138                                         tmds_setting_info->iga_path);
1139                                 primary_device = DVI_Device;
1140                         }
1141                 }
1142                 if (viafb_LCD_ON) {
1143                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
1144                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
1145                                         viaparinfo->
1146                                         lvds_setting_info->iga_path);
1147                                 primary_device = LCD_Device;
1148                         }
1149                 }
1150                 if (viafb_LCD2_ON) {
1151                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
1152                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
1153                                         viaparinfo->
1154                                         lvds_setting_info2->iga_path);
1155                                 primary_device = LCD2_Device;
1156                         }
1157                 }
1158         }
1159         return primary_device;
1160 }
1161
1162 static void apply_second_mode_setting(struct fb_var_screeninfo
1163         *sec_var)
1164 {
1165         u32 htotal, vtotal, long_refresh;
1166
1167         htotal = sec_var->xres + sec_var->left_margin +
1168                 sec_var->right_margin + sec_var->hsync_len;
1169         vtotal = sec_var->yres + sec_var->upper_margin +
1170                 sec_var->lower_margin + sec_var->vsync_len;
1171         if ((sec_var->xres_virtual * (sec_var->bits_per_pixel >> 3)) & 0x1F) {
1172                 /*Is 32 bytes alignment? */
1173                 /*32 pixel alignment */
1174                 sec_var->xres_virtual = (sec_var->xres_virtual + 31) & ~31;
1175         }
1176
1177         htotal = sec_var->xres + sec_var->left_margin +
1178                 sec_var->right_margin + sec_var->hsync_len;
1179         vtotal = sec_var->yres + sec_var->upper_margin +
1180                 sec_var->lower_margin + sec_var->vsync_len;
1181         long_refresh = 1000000000UL / sec_var->pixclock * 1000;
1182         long_refresh /= (htotal * vtotal);
1183
1184         viafb_second_xres = sec_var->xres;
1185         viafb_second_yres = sec_var->yres;
1186         viafb_second_virtual_xres = sec_var->xres_virtual;
1187         viafb_second_virtual_yres = sec_var->yres_virtual;
1188         viafb_bpp1 = sec_var->bits_per_pixel;
1189         viafb_refresh1 = viafb_get_refresh(sec_var->xres, sec_var->yres,
1190                 long_refresh);
1191 }
1192
1193 static int apply_device_setting(struct viafb_ioctl_setting setting_info,
1194         struct fb_info *info)
1195 {
1196         int need_set_mode = 0;
1197         DEBUG_MSG(KERN_INFO "apply_device_setting\n");
1198
1199         if (setting_info.device_flag) {
1200                 need_set_mode = 1;
1201                 check_available_device_to_enable(setting_info.device_status);
1202         }
1203
1204         /* Unlock LCD's operation according to LCD flag
1205            and check if the setting value is valid. */
1206         /* If the value is valid, apply the new setting value to the device. */
1207         if (viafb_LCD_ON) {
1208                 if (setting_info.lcd_operation_flag & OP_LCD_CENTERING) {
1209                         need_set_mode = 1;
1210                         if (setting_info.lcd_attributes.display_center) {
1211                                 /* Centering */
1212                                 viaparinfo->lvds_setting_info->display_method =
1213                                     LCD_CENTERING;
1214                                 viafb_lcd_dsp_method = LCD_CENTERING;
1215                                 viaparinfo->lvds_setting_info2->display_method =
1216                                     viafb_lcd_dsp_method = LCD_CENTERING;
1217                         } else {
1218                                 /* expandsion */
1219                                 viaparinfo->lvds_setting_info->display_method =
1220                                     LCD_EXPANDSION;
1221                                 viafb_lcd_dsp_method = LCD_EXPANDSION;
1222                                 viaparinfo->lvds_setting_info2->display_method =
1223                                     LCD_EXPANDSION;
1224                                 viafb_lcd_dsp_method = LCD_EXPANDSION;
1225                         }
1226                 }
1227
1228                 if (setting_info.lcd_operation_flag & OP_LCD_MODE) {
1229                         need_set_mode = 1;
1230                         if (setting_info.lcd_attributes.lcd_mode ==
1231                                 LCD_SPWG) {
1232                                 viaparinfo->lvds_setting_info->lcd_mode =
1233                                         viafb_lcd_mode = LCD_SPWG;
1234                         } else {
1235                                 viaparinfo->lvds_setting_info->lcd_mode =
1236                                         viafb_lcd_mode = LCD_OPENLDI;
1237                         }
1238                         viaparinfo->lvds_setting_info2->lcd_mode =
1239                             viaparinfo->lvds_setting_info->lcd_mode;
1240                 }
1241
1242                 if (setting_info.lcd_operation_flag & OP_LCD_PANEL_ID) {
1243                         need_set_mode = 1;
1244                         if (setting_info.lcd_attributes.panel_id <=
1245                             LCD_PANEL_ID_MAXIMUM) {
1246                                 viafb_lcd_panel_id =
1247                                     setting_info.lcd_attributes.panel_id;
1248                                 viafb_init_lcd_size();
1249                         }
1250                 }
1251         }
1252
1253         if (0 != (setting_info.samm_status & OP_SAMM)) {
1254                 setting_info.samm_status =
1255                     setting_info.samm_status & (~OP_SAMM);
1256                 if (setting_info.samm_status == 0
1257                     || setting_info.samm_status == 1) {
1258                         viafb_SAMM_ON = setting_info.samm_status;
1259
1260                         if (viafb_SAMM_ON)
1261                                 viafb_primary_dev = setting_info.primary_device;
1262
1263                         viafb_set_primary_address(0);
1264                         viafb_set_secondary_address(viafb_SAMM_ON ? viafb_second_offset : 0);
1265                         viafb_set_iga_path();
1266                 }
1267                 need_set_mode = 1;
1268         }
1269
1270         if (!need_set_mode) {
1271                 ;
1272         } else {
1273                 viafb_set_iga_path();
1274                 viafb_set_par(info);
1275         }
1276         return true;
1277 }
1278
1279 static void retrieve_device_setting(struct viafb_ioctl_setting
1280         *setting_info)
1281 {
1282
1283         /* get device status */
1284         if (viafb_CRT_ON == 1)
1285                 setting_info->device_status = CRT_Device;
1286         if (viafb_DVI_ON == 1)
1287                 setting_info->device_status |= DVI_Device;
1288         if (viafb_LCD_ON == 1)
1289                 setting_info->device_status |= LCD_Device;
1290         if (viafb_LCD2_ON == 1)
1291                 setting_info->device_status |= LCD2_Device;
1292
1293         setting_info->samm_status = viafb_SAMM_ON;
1294         setting_info->primary_device = get_primary_device();
1295
1296         setting_info->first_dev_bpp = viafb_bpp;
1297         setting_info->second_dev_bpp = viafb_bpp1;
1298
1299         setting_info->first_dev_refresh = viafb_refresh;
1300         setting_info->second_dev_refresh = viafb_refresh1;
1301
1302         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
1303         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
1304         setting_info->second_dev_hor_res = viafb_second_xres;
1305         setting_info->second_dev_ver_res = viafb_second_yres;
1306
1307         /* Get lcd attributes */
1308         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
1309         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
1310         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
1311 }
1312
1313 static void parse_active_dev(void)
1314 {
1315         viafb_CRT_ON = STATE_OFF;
1316         viafb_DVI_ON = STATE_OFF;
1317         viafb_LCD_ON = STATE_OFF;
1318         viafb_LCD2_ON = STATE_OFF;
1319         /* 1. Modify the active status of devices. */
1320         /* 2. Keep the order of devices, so we can set corresponding
1321            IGA path to devices in SAMM case. */
1322         /*    Note: The previous of active_dev is primary device,
1323            and the following is secondary device. */
1324         if (!strncmp(viafb_active_dev, "CRT+DVI", 7)) {
1325                 /* CRT+DVI */
1326                 viafb_CRT_ON = STATE_ON;
1327                 viafb_DVI_ON = STATE_ON;
1328                 viafb_primary_dev = CRT_Device;
1329         } else if (!strncmp(viafb_active_dev, "DVI+CRT", 7)) {
1330                 /* DVI+CRT */
1331                 viafb_CRT_ON = STATE_ON;
1332                 viafb_DVI_ON = STATE_ON;
1333                 viafb_primary_dev = DVI_Device;
1334         } else if (!strncmp(viafb_active_dev, "CRT+LCD", 7)) {
1335                 /* CRT+LCD */
1336                 viafb_CRT_ON = STATE_ON;
1337                 viafb_LCD_ON = STATE_ON;
1338                 viafb_primary_dev = CRT_Device;
1339         } else if (!strncmp(viafb_active_dev, "LCD+CRT", 7)) {
1340                 /* LCD+CRT */
1341                 viafb_CRT_ON = STATE_ON;
1342                 viafb_LCD_ON = STATE_ON;
1343                 viafb_primary_dev = LCD_Device;
1344         } else if (!strncmp(viafb_active_dev, "DVI+LCD", 7)) {
1345                 /* DVI+LCD */
1346                 viafb_DVI_ON = STATE_ON;
1347                 viafb_LCD_ON = STATE_ON;
1348                 viafb_primary_dev = DVI_Device;
1349         } else if (!strncmp(viafb_active_dev, "LCD+DVI", 7)) {
1350                 /* LCD+DVI */
1351                 viafb_DVI_ON = STATE_ON;
1352                 viafb_LCD_ON = STATE_ON;
1353                 viafb_primary_dev = LCD_Device;
1354         } else if (!strncmp(viafb_active_dev, "LCD+LCD2", 8)) {
1355                 viafb_LCD_ON = STATE_ON;
1356                 viafb_LCD2_ON = STATE_ON;
1357                 viafb_primary_dev = LCD_Device;
1358         } else if (!strncmp(viafb_active_dev, "LCD2+LCD", 8)) {
1359                 viafb_LCD_ON = STATE_ON;
1360                 viafb_LCD2_ON = STATE_ON;
1361                 viafb_primary_dev = LCD2_Device;
1362         } else if (!strncmp(viafb_active_dev, "CRT", 3)) {
1363                 /* CRT only */
1364                 viafb_CRT_ON = STATE_ON;
1365                 viafb_SAMM_ON = STATE_OFF;
1366         } else if (!strncmp(viafb_active_dev, "DVI", 3)) {
1367                 /* DVI only */
1368                 viafb_DVI_ON = STATE_ON;
1369                 viafb_SAMM_ON = STATE_OFF;
1370         } else if (!strncmp(viafb_active_dev, "LCD", 3)) {
1371                 /* LCD only */
1372                 viafb_LCD_ON = STATE_ON;
1373                 viafb_SAMM_ON = STATE_OFF;
1374         } else {
1375                 viafb_CRT_ON = STATE_ON;
1376                 viafb_SAMM_ON = STATE_OFF;
1377         }
1378 }
1379
1380 static int parse_port(char *opt_str, int *output_interface)
1381 {
1382         if (!strncmp(opt_str, "DVP0", 4))
1383                 *output_interface = INTERFACE_DVP0;
1384         else if (!strncmp(opt_str, "DVP1", 4))
1385                 *output_interface = INTERFACE_DVP1;
1386         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1387                 *output_interface = INTERFACE_DFP;
1388         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1389                 *output_interface = INTERFACE_DFP_HIGH;
1390         else if (!strncmp(opt_str, "DFP_LOW", 7))
1391                 *output_interface = INTERFACE_DFP_LOW;
1392         else
1393                 *output_interface = INTERFACE_NONE;
1394         return 0;
1395 }
1396
1397 static void parse_lcd_port(void)
1398 {
1399         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1400                 output_interface);
1401         /*Initialize to avoid unexpected behavior */
1402         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1403         INTERFACE_NONE;
1404
1405         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1406                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1407                   output_interface);
1408 }
1409
1410 static void parse_dvi_port(void)
1411 {
1412         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1413                 output_interface);
1414
1415         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1416                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1417                   output_interface);
1418 }
1419
1420 /*
1421  * The proc filesystem read/write function, a simple proc implement to
1422  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1423  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1424  * CR9B,    SR65,    CR97,    CR99
1425  */
1426 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1427 {
1428         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1429         dvp0_data_dri =
1430             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1431             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1432         dvp0_clk_dri =
1433             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1434             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1435         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1436         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1437         return 0;
1438 }
1439
1440 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1441 {
1442         return single_open(file, viafb_dvp0_proc_show, NULL);
1443 }
1444
1445 static ssize_t viafb_dvp0_proc_write(struct file *file,
1446         const char __user *buffer, size_t count, loff_t *pos)
1447 {
1448         char buf[20], *value, *pbuf;
1449         u8 reg_val = 0;
1450         unsigned long length, i;
1451         if (count < 1)
1452                 return -EINVAL;
1453         length = count > 20 ? 20 : count;
1454         if (copy_from_user(&buf[0], buffer, length))
1455                 return -EFAULT;
1456         buf[length - 1] = '\0'; /*Ensure end string */
1457         pbuf = &buf[0];
1458         for (i = 0; i < 3; i++) {
1459                 value = strsep(&pbuf, " ");
1460                 if (value != NULL) {
1461                         strict_strtoul(value, 0, (unsigned long *)&reg_val);
1462                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1463                                   reg_val);
1464                         switch (i) {
1465                         case 0:
1466                                 viafb_write_reg_mask(CR96, VIACR,
1467                                         reg_val, 0x0f);
1468                                 break;
1469                         case 1:
1470                                 viafb_write_reg_mask(SR2A, VIASR,
1471                                         reg_val << 4, BIT5);
1472                                 viafb_write_reg_mask(SR1B, VIASR,
1473                                         reg_val << 1, BIT1);
1474                                 break;
1475                         case 2:
1476                                 viafb_write_reg_mask(SR2A, VIASR,
1477                                         reg_val << 3, BIT4);
1478                                 viafb_write_reg_mask(SR1E, VIASR,
1479                                         reg_val << 2, BIT2);
1480                                 break;
1481                         default:
1482                                 break;
1483                         }
1484                 } else {
1485                         break;
1486                 }
1487         }
1488         return count;
1489 }
1490
1491 static const struct file_operations viafb_dvp0_proc_fops = {
1492         .owner          = THIS_MODULE,
1493         .open           = viafb_dvp0_proc_open,
1494         .read           = seq_read,
1495         .llseek         = seq_lseek,
1496         .release        = single_release,
1497         .write          = viafb_dvp0_proc_write,
1498 };
1499
1500 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1501 {
1502         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1503         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1504         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1505         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1506         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1507         return 0;
1508 }
1509
1510 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1511 {
1512         return single_open(file, viafb_dvp1_proc_show, NULL);
1513 }
1514
1515 static ssize_t viafb_dvp1_proc_write(struct file *file,
1516         const char __user *buffer, size_t count, loff_t *pos)
1517 {
1518         char buf[20], *value, *pbuf;
1519         u8 reg_val = 0;
1520         unsigned long length, i;
1521         if (count < 1)
1522                 return -EINVAL;
1523         length = count > 20 ? 20 : count;
1524         if (copy_from_user(&buf[0], buffer, length))
1525                 return -EFAULT;
1526         buf[length - 1] = '\0'; /*Ensure end string */
1527         pbuf = &buf[0];
1528         for (i = 0; i < 3; i++) {
1529                 value = strsep(&pbuf, " ");
1530                 if (value != NULL) {
1531                         strict_strtoul(value, 0, (unsigned long *)&reg_val);
1532                         switch (i) {
1533                         case 0:
1534                                 viafb_write_reg_mask(CR9B, VIACR,
1535                                         reg_val, 0x0f);
1536                                 break;
1537                         case 1:
1538                                 viafb_write_reg_mask(SR65, VIASR,
1539                                         reg_val << 2, 0x0c);
1540                                 break;
1541                         case 2:
1542                                 viafb_write_reg_mask(SR65, VIASR,
1543                                         reg_val, 0x03);
1544                                 break;
1545                         default:
1546                                 break;
1547                         }
1548                 } else {
1549                         break;
1550                 }
1551         }
1552         return count;
1553 }
1554
1555 static const struct file_operations viafb_dvp1_proc_fops = {
1556         .owner          = THIS_MODULE,
1557         .open           = viafb_dvp1_proc_open,
1558         .read           = seq_read,
1559         .llseek         = seq_lseek,
1560         .release        = single_release,
1561         .write          = viafb_dvp1_proc_write,
1562 };
1563
1564 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1565 {
1566         u8 dfp_high = 0;
1567         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1568         seq_printf(m, "%x\n", dfp_high);
1569         return 0;
1570 }
1571
1572 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1573 {
1574         return single_open(file, viafb_dfph_proc_show, NULL);
1575 }
1576
1577 static ssize_t viafb_dfph_proc_write(struct file *file,
1578         const char __user *buffer, size_t count, loff_t *pos)
1579 {
1580         char buf[20];
1581         u8 reg_val = 0;
1582         unsigned long length;
1583         if (count < 1)
1584                 return -EINVAL;
1585         length = count > 20 ? 20 : count;
1586         if (copy_from_user(&buf[0], buffer, length))
1587                 return -EFAULT;
1588         buf[length - 1] = '\0'; /*Ensure end string */
1589         strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1590         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1591         return count;
1592 }
1593
1594 static const struct file_operations viafb_dfph_proc_fops = {
1595         .owner          = THIS_MODULE,
1596         .open           = viafb_dfph_proc_open,
1597         .read           = seq_read,
1598         .llseek         = seq_lseek,
1599         .release        = single_release,
1600         .write          = viafb_dfph_proc_write,
1601 };
1602
1603 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1604 {
1605         u8 dfp_low = 0;
1606         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1607         seq_printf(m, "%x\n", dfp_low);
1608         return 0;
1609 }
1610
1611 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1612 {
1613         return single_open(file, viafb_dfpl_proc_show, NULL);
1614 }
1615
1616 static ssize_t viafb_dfpl_proc_write(struct file *file,
1617         const char __user *buffer, size_t count, loff_t *pos)
1618 {
1619         char buf[20];
1620         u8 reg_val = 0;
1621         unsigned long length;
1622         if (count < 1)
1623                 return -EINVAL;
1624         length = count > 20 ? 20 : count;
1625         if (copy_from_user(&buf[0], buffer, length))
1626                 return -EFAULT;
1627         buf[length - 1] = '\0'; /*Ensure end string */
1628         strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1629         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1630         return count;
1631 }
1632
1633 static const struct file_operations viafb_dfpl_proc_fops = {
1634         .owner          = THIS_MODULE,
1635         .open           = viafb_dfpl_proc_open,
1636         .read           = seq_read,
1637         .llseek         = seq_lseek,
1638         .release        = single_release,
1639         .write          = viafb_dfpl_proc_write,
1640 };
1641
1642 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1643 {
1644         u8 vt1636_08 = 0, vt1636_09 = 0;
1645         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1646         case VT1636_LVDS:
1647                 vt1636_08 =
1648                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1649                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1650                 vt1636_09 =
1651                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1652                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1653                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1654                 break;
1655         default:
1656                 break;
1657         }
1658         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1659         case VT1636_LVDS:
1660                 vt1636_08 =
1661                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1662                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1663                 vt1636_09 =
1664                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1665                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1666                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1667                 break;
1668         default:
1669                 break;
1670         }
1671         return 0;
1672 }
1673
1674 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1675 {
1676         return single_open(file, viafb_vt1636_proc_show, NULL);
1677 }
1678
1679 static ssize_t viafb_vt1636_proc_write(struct file *file,
1680         const char __user *buffer, size_t count, loff_t *pos)
1681 {
1682         char buf[30], *value, *pbuf;
1683         struct IODATA reg_val;
1684         unsigned long length, i;
1685         if (count < 1)
1686                 return -EINVAL;
1687         length = count > 30 ? 30 : count;
1688         if (copy_from_user(&buf[0], buffer, length))
1689                 return -EFAULT;
1690         buf[length - 1] = '\0'; /*Ensure end string */
1691         pbuf = &buf[0];
1692         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1693         case VT1636_LVDS:
1694                 for (i = 0; i < 2; i++) {
1695                         value = strsep(&pbuf, " ");
1696                         if (value != NULL) {
1697                                 strict_strtoul(value, 0,
1698                                         (unsigned long *)&reg_val.Data);
1699                                 switch (i) {
1700                                 case 0:
1701                                         reg_val.Index = 0x08;
1702                                         reg_val.Mask = 0x0f;
1703                                         viafb_gpio_i2c_write_mask_lvds
1704                                             (viaparinfo->lvds_setting_info,
1705                                             &viaparinfo->
1706                                             chip_info->lvds_chip_info,
1707                                              reg_val);
1708                                         break;
1709                                 case 1:
1710                                         reg_val.Index = 0x09;
1711                                         reg_val.Mask = 0x1f;
1712                                         viafb_gpio_i2c_write_mask_lvds
1713                                             (viaparinfo->lvds_setting_info,
1714                                             &viaparinfo->
1715                                             chip_info->lvds_chip_info,
1716                                              reg_val);
1717                                         break;
1718                                 default:
1719                                         break;
1720                                 }
1721                         } else {
1722                                 break;
1723                         }
1724                 }
1725                 break;
1726         default:
1727                 break;
1728         }
1729         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1730         case VT1636_LVDS:
1731                 for (i = 0; i < 2; i++) {
1732                         value = strsep(&pbuf, " ");
1733                         if (value != NULL) {
1734                                 strict_strtoul(value, 0,
1735                                         (unsigned long *)&reg_val.Data);
1736                                 switch (i) {
1737                                 case 0:
1738                                         reg_val.Index = 0x08;
1739                                         reg_val.Mask = 0x0f;
1740                                         viafb_gpio_i2c_write_mask_lvds
1741                                             (viaparinfo->lvds_setting_info2,
1742                                             &viaparinfo->
1743                                             chip_info->lvds_chip_info2,
1744                                              reg_val);
1745                                         break;
1746                                 case 1:
1747                                         reg_val.Index = 0x09;
1748                                         reg_val.Mask = 0x1f;
1749                                         viafb_gpio_i2c_write_mask_lvds
1750                                             (viaparinfo->lvds_setting_info2,
1751                                             &viaparinfo->
1752                                             chip_info->lvds_chip_info2,
1753                                              reg_val);
1754                                         break;
1755                                 default:
1756                                         break;
1757                                 }
1758                         } else {
1759                                 break;
1760                         }
1761                 }
1762                 break;
1763         default:
1764                 break;
1765         }
1766         return count;
1767 }
1768
1769 static const struct file_operations viafb_vt1636_proc_fops = {
1770         .owner          = THIS_MODULE,
1771         .open           = viafb_vt1636_proc_open,
1772         .read           = seq_read,
1773         .llseek         = seq_lseek,
1774         .release        = single_release,
1775         .write          = viafb_vt1636_proc_write,
1776 };
1777
1778 static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
1779 {
1780         *viafb_entry = proc_mkdir("viafb", NULL);
1781         if (*viafb_entry) {
1782                 proc_create("dvp0", 0, *viafb_entry, &viafb_dvp0_proc_fops);
1783                 proc_create("dvp1", 0, *viafb_entry, &viafb_dvp1_proc_fops);
1784                 proc_create("dfph", 0, *viafb_entry, &viafb_dfph_proc_fops);
1785                 proc_create("dfpl", 0, *viafb_entry, &viafb_dfpl_proc_fops);
1786                 if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
1787                         lvds_chip_name || VT1636_LVDS ==
1788                     viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1789                         proc_create("vt1636", 0, *viafb_entry, &viafb_vt1636_proc_fops);
1790                 }
1791
1792         }
1793 }
1794 static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
1795 {
1796         /* no problem if it was not registered */
1797         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1798         remove_proc_entry("dvp1", viafb_entry);
1799         remove_proc_entry("dfph", viafb_entry);
1800         remove_proc_entry("dfpl", viafb_entry);
1801         remove_proc_entry("vt1636", viafb_entry);
1802         remove_proc_entry("vt1625", viafb_entry);
1803         remove_proc_entry("viafb", NULL);
1804 }
1805
1806 static void parse_mode(const char *str, u32 *xres, u32 *yres)
1807 {
1808         char *ptr;
1809
1810         *xres = simple_strtoul(str, &ptr, 10);
1811         if (ptr[0] != 'x')
1812                 goto out_default;
1813
1814         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1815         if (ptr[0])
1816                 goto out_default;
1817
1818         return;
1819
1820 out_default:
1821         printk(KERN_WARNING "viafb received invalid mode string: %s\n", str);
1822         *xres = 640;
1823         *yres = 480;
1824 }
1825
1826 static int __devinit via_pci_probe(struct pci_dev *pdev,
1827                                    const struct pci_device_id *ent)
1828 {
1829         u32 default_xres, default_yres;
1830         struct VideoModeTable *vmode_entry;
1831         u32 viafb_par_length;
1832
1833         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1834
1835         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1836
1837         /* Allocate fb_info and ***_par here, also including some other needed
1838          * variables
1839         */
1840         viafbinfo = framebuffer_alloc(viafb_par_length +
1841                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1842                 &pdev->dev);
1843         if (!viafbinfo) {
1844                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1845                 return -ENODEV;
1846         }
1847
1848         viaparinfo = (struct viafb_par *)viafbinfo->par;
1849         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1850         viaparinfo->vram_addr = 0;
1851         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1852         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1853         viaparinfo->lvds_setting_info2 =
1854                 &viaparinfo->shared->lvds_setting_info2;
1855         viaparinfo->crt_setting_info = &viaparinfo->shared->crt_setting_info;
1856         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1857
1858         if (viafb_dual_fb)
1859                 viafb_SAMM_ON = 1;
1860         parse_active_dev();
1861         parse_lcd_port();
1862         parse_dvi_port();
1863
1864         /* for dual-fb must viafb_SAMM_ON=1 and viafb_dual_fb=1 */
1865         if (!viafb_SAMM_ON)
1866                 viafb_dual_fb = 0;
1867
1868         /* Set up I2C bus stuff */
1869         viafb_create_i2c_bus(viaparinfo);
1870
1871         viafb_init_chip_info(pdev, ent);
1872         viaparinfo->fbmem = pci_resource_start(pdev, 0);
1873         viaparinfo->memsize = viafb_get_fb_size_from_pci();
1874         viaparinfo->fbmem_free = viaparinfo->memsize;
1875         viaparinfo->fbmem_used = 0;
1876         viafbinfo->screen_base = ioremap_nocache(viaparinfo->fbmem,
1877                 viaparinfo->memsize);
1878         if (!viafbinfo->screen_base) {
1879                 printk(KERN_INFO "ioremap failed\n");
1880                 return -ENOMEM;
1881         }
1882
1883         viafbinfo->fix.mmio_start = pci_resource_start(pdev, 1);
1884         viafbinfo->fix.mmio_len = pci_resource_len(pdev, 1);
1885         viafbinfo->node = 0;
1886         viafbinfo->fbops = &viafb_ops;
1887         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1888
1889         viafbinfo->pseudo_palette = pseudo_pal;
1890         if (viafb_accel && !viafb_init_engine(viafbinfo)) {
1891                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1892                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1893                 default_var.accel_flags = FB_ACCELF_TEXT;
1894         } else {
1895                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1896                 default_var.accel_flags = 0;
1897         }
1898
1899         if (viafb_second_size && (viafb_second_size < 8)) {
1900                 viafb_second_offset = viaparinfo->fbmem_free -
1901                         viafb_second_size * 1024 * 1024;
1902         } else {
1903                 viafb_second_size = 8;
1904                 viafb_second_offset = viaparinfo->fbmem_free -
1905                         viafb_second_size * 1024 * 1024;
1906         }
1907
1908         parse_mode(viafb_mode, &default_xres, &default_yres);
1909         vmode_entry = viafb_get_mode(default_xres, default_yres);
1910         if (viafb_SAMM_ON == 1) {
1911                 parse_mode(viafb_mode1, &viafb_second_xres,
1912                         &viafb_second_yres);
1913
1914                 if (0 == viafb_second_virtual_xres) {
1915                         switch (viafb_second_xres) {
1916                         case 1400:
1917                                 viafb_second_virtual_xres = 1408;
1918                                 break;
1919                         default:
1920                                 viafb_second_virtual_xres = viafb_second_xres;
1921                                 break;
1922                         }
1923                 }
1924                 if (0 == viafb_second_virtual_yres)
1925                         viafb_second_virtual_yres = viafb_second_yres;
1926         }
1927
1928         switch (viafb_bpp) {
1929         case 0 ... 8:
1930                 viafb_bpp = 8;
1931                 break;
1932         case 9 ... 16:
1933                 viafb_bpp = 16;
1934                 break;
1935         case 17 ... 32:
1936                 viafb_bpp = 32;
1937                 break;
1938         default:
1939                 viafb_bpp = 8;
1940         }
1941         default_var.xres = default_xres;
1942         default_var.yres = default_yres;
1943         switch (default_xres) {
1944         case 1400:
1945                 default_var.xres_virtual = 1408;
1946                 break;
1947         default:
1948                 default_var.xres_virtual = default_xres;
1949                 break;
1950         }
1951         default_var.yres_virtual = default_yres;
1952         default_var.bits_per_pixel = viafb_bpp;
1953         if (default_var.bits_per_pixel == 15)
1954                 default_var.bits_per_pixel = 16;
1955         default_var.pixclock =
1956             viafb_get_pixclock(default_xres, default_yres, viafb_refresh);
1957         default_var.left_margin = (default_xres >> 3) & 0xf8;
1958         default_var.right_margin = 32;
1959         default_var.upper_margin = 16;
1960         default_var.lower_margin = 4;
1961         default_var.hsync_len = default_var.left_margin;
1962         default_var.vsync_len = 4;
1963         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1964         viafb_check_var(&default_var, viafbinfo);
1965         viafbinfo->var = default_var;
1966
1967         if (viafb_dual_fb) {
1968                 viafbinfo1 = framebuffer_alloc(viafb_par_length, &pdev->dev);
1969                 if (!viafbinfo1) {
1970                         printk(KERN_ERR
1971                         "allocate the second framebuffer struct error\n");
1972                         framebuffer_release(viafbinfo);
1973                         return -ENOMEM;
1974                 }
1975                 viaparinfo1 = viafbinfo1->par;
1976                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1977                 viaparinfo1->vram_addr = viafb_second_offset;
1978                 viaparinfo1->memsize = viaparinfo->memsize -
1979                         viafb_second_offset;
1980                 viaparinfo->memsize = viafb_second_offset;
1981                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1982
1983                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1984                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1985                         viaparinfo1->fbmem_used;
1986                 viaparinfo->fbmem_free = viaparinfo->memsize;
1987                 viaparinfo->fbmem_used = 0;
1988
1989                 viaparinfo->iga_path = IGA1;
1990                 viaparinfo1->iga_path = IGA2;
1991                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1992                 viafbinfo1->par = viaparinfo1;
1993                 viafbinfo1->screen_base = viafbinfo->screen_base +
1994                         viafb_second_offset;
1995
1996                 default_var.xres = viafb_second_xres;
1997                 default_var.yres = viafb_second_yres;
1998                 default_var.xres_virtual = viafb_second_virtual_xres;
1999                 default_var.yres_virtual = viafb_second_virtual_yres;
2000                 if (viafb_bpp1 != viafb_bpp)
2001                         viafb_bpp1 = viafb_bpp;
2002                 default_var.bits_per_pixel = viafb_bpp1;
2003                 default_var.pixclock =
2004                     viafb_get_pixclock(viafb_second_xres, viafb_second_yres,
2005                     viafb_refresh);
2006                 default_var.left_margin = (viafb_second_xres >> 3) & 0xf8;
2007                 default_var.right_margin = 32;
2008                 default_var.upper_margin = 16;
2009                 default_var.lower_margin = 4;
2010                 default_var.hsync_len = default_var.left_margin;
2011                 default_var.vsync_len = 4;
2012
2013                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
2014                 viafb_check_var(&default_var, viafbinfo1);
2015                 viafbinfo1->var = default_var;
2016                 viafb_update_fix(viafbinfo1);
2017                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
2018                         &viafbinfo1->fix);
2019         }
2020
2021         viafb_update_fix(viafbinfo);
2022         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
2023                 &viafbinfo->fix);
2024         default_var.activate = FB_ACTIVATE_NOW;
2025         fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
2026
2027         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
2028             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
2029                 if (register_framebuffer(viafbinfo1) < 0)
2030                         return -EINVAL;
2031         }
2032         if (register_framebuffer(viafbinfo) < 0)
2033                 return -EINVAL;
2034
2035         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
2036                         || (viaparinfo->chip_info->gfx_chip_name !=
2037                         UNICHROME_CLE266))) {
2038                 if (register_framebuffer(viafbinfo1) < 0)
2039                         return -EINVAL;
2040         }
2041         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
2042                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
2043                   default_var.yres, default_var.bits_per_pixel);
2044
2045         viafb_init_proc(&viaparinfo->shared->proc_entry);
2046         viafb_init_dac(IGA2);
2047         return 0;
2048 }
2049
2050 static void __devexit via_pci_remove(struct pci_dev *pdev)
2051 {
2052         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
2053         fb_dealloc_cmap(&viafbinfo->cmap);
2054         unregister_framebuffer(viafbinfo);
2055         if (viafb_dual_fb)
2056                 unregister_framebuffer(viafbinfo1);
2057         iounmap((void *)viafbinfo->screen_base);
2058         iounmap(viaparinfo->shared->engine_mmio);
2059
2060         viafb_delete_i2c_buss(viaparinfo);
2061
2062         framebuffer_release(viafbinfo);
2063         if (viafb_dual_fb)
2064                 framebuffer_release(viafbinfo1);
2065
2066         viafb_remove_proc(viaparinfo->shared->proc_entry);
2067 }
2068
2069 #ifndef MODULE
2070 static int __init viafb_setup(char *options)
2071 {
2072         char *this_opt;
2073         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
2074
2075         if (!options || !*options)
2076                 return 0;
2077
2078         while ((this_opt = strsep(&options, ",")) != NULL) {
2079                 if (!*this_opt)
2080                         continue;
2081
2082                 if (!strncmp(this_opt, "viafb_mode1=", 12))
2083                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
2084                 else if (!strncmp(this_opt, "viafb_mode=", 11))
2085                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
2086                 else if (!strncmp(this_opt, "viafb_bpp1=", 11))
2087                         strict_strtoul(this_opt + 11, 0,
2088                                 (unsigned long *)&viafb_bpp1);
2089                 else if (!strncmp(this_opt, "viafb_bpp=", 10))
2090                         strict_strtoul(this_opt + 10, 0,
2091                                 (unsigned long *)&viafb_bpp);
2092                 else if (!strncmp(this_opt, "viafb_refresh1=", 15))
2093                         strict_strtoul(this_opt + 15, 0,
2094                                 (unsigned long *)&viafb_refresh1);
2095                 else if (!strncmp(this_opt, "viafb_refresh=", 14))
2096                         strict_strtoul(this_opt + 14, 0,
2097                                 (unsigned long *)&viafb_refresh);
2098                 else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21))
2099                         strict_strtoul(this_opt + 21, 0,
2100                                 (unsigned long *)&viafb_lcd_dsp_method);
2101                 else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19))
2102                         strict_strtoul(this_opt + 19, 0,
2103                                 (unsigned long *)&viafb_lcd_panel_id);
2104                 else if (!strncmp(this_opt, "viafb_accel=", 12))
2105                         strict_strtoul(this_opt + 12, 0,
2106                                 (unsigned long *)&viafb_accel);
2107                 else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14))
2108                         strict_strtoul(this_opt + 14, 0,
2109                                 (unsigned long *)&viafb_SAMM_ON);
2110                 else if (!strncmp(this_opt, "viafb_active_dev=", 17))
2111                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2112                 else if (!strncmp(this_opt,
2113                         "viafb_display_hardware_layout=", 30))
2114                         strict_strtoul(this_opt + 30, 0,
2115                         (unsigned long *)&viafb_display_hardware_layout);
2116                 else if (!strncmp(this_opt, "viafb_second_size=", 18))
2117                         strict_strtoul(this_opt + 18, 0,
2118                                 (unsigned long *)&viafb_second_size);
2119                 else if (!strncmp(this_opt,
2120                         "viafb_platform_epia_dvi=", 24))
2121                         strict_strtoul(this_opt + 24, 0,
2122                                 (unsigned long *)&viafb_platform_epia_dvi);
2123                 else if (!strncmp(this_opt,
2124                         "viafb_device_lcd_dualedge=", 26))
2125                         strict_strtoul(this_opt + 26, 0,
2126                                 (unsigned long *)&viafb_device_lcd_dualedge);
2127                 else if (!strncmp(this_opt, "viafb_bus_width=", 16))
2128                         strict_strtoul(this_opt + 16, 0,
2129                                 (unsigned long *)&viafb_bus_width);
2130                 else if (!strncmp(this_opt, "viafb_lcd_mode=", 15))
2131                         strict_strtoul(this_opt + 15, 0,
2132                                 (unsigned long *)&viafb_lcd_mode);
2133                 else if (!strncmp(this_opt, "viafb_lcd_port=", 15))
2134                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2135                 else if (!strncmp(this_opt, "viafb_dvi_port=", 15))
2136                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2137         }
2138         return 0;
2139 }
2140 #endif
2141
2142 static struct pci_device_id viafb_pci_table[] __devinitdata = {
2143         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CLE266_DID),
2144           .driver_data = UNICHROME_CLE266 },
2145         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_PM800_DID),
2146           .driver_data = UNICHROME_PM800 },
2147         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K400_DID),
2148           .driver_data = UNICHROME_K400 },
2149         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K800_DID),
2150           .driver_data = UNICHROME_K800 },
2151         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M890_DID),
2152           .driver_data = UNICHROME_CN700 },
2153         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K8M890_DID),
2154           .driver_data = UNICHROME_K8M890 },
2155         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CX700_DID),
2156           .driver_data = UNICHROME_CX700 },
2157         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M900_DID),
2158           .driver_data = UNICHROME_P4M900 },
2159         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CN750_DID),
2160           .driver_data = UNICHROME_CN750 },
2161         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX800_DID),
2162           .driver_data = UNICHROME_VX800 },
2163         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX855_DID),
2164           .driver_data = UNICHROME_VX855 },
2165         { }
2166 };
2167 MODULE_DEVICE_TABLE(pci, viafb_pci_table);
2168
2169 static struct pci_driver viafb_driver = {
2170         .name           = "viafb",
2171         .id_table       = viafb_pci_table,
2172         .probe          = via_pci_probe,
2173         .remove         = __devexit_p(via_pci_remove),
2174 };
2175
2176 static int __init viafb_init(void)
2177 {
2178 #ifndef MODULE
2179         char *option = NULL;
2180         if (fb_get_options("viafb", &option))
2181                 return -ENODEV;
2182         viafb_setup(option);
2183 #endif
2184         printk(KERN_INFO
2185        "VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
2186                VERSION_MAJOR, VERSION_MINOR);
2187         return pci_register_driver(&viafb_driver);
2188 }
2189
2190 static void __exit viafb_exit(void)
2191 {
2192         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2193         pci_unregister_driver(&viafb_driver);
2194 }
2195
2196 static struct fb_ops viafb_ops = {
2197         .owner = THIS_MODULE,
2198         .fb_open = viafb_open,
2199         .fb_release = viafb_release,
2200         .fb_check_var = viafb_check_var,
2201         .fb_set_par = viafb_set_par,
2202         .fb_setcolreg = viafb_setcolreg,
2203         .fb_pan_display = viafb_pan_display,
2204         .fb_blank = viafb_blank,
2205         .fb_fillrect = viafb_fillrect,
2206         .fb_copyarea = viafb_copyarea,
2207         .fb_imageblit = viafb_imageblit,
2208         .fb_cursor = viafb_cursor,
2209         .fb_ioctl = viafb_ioctl,
2210         .fb_sync = viafb_sync,
2211         .fb_setcmap = viafb_setcmap,
2212 };
2213
2214 module_init(viafb_init);
2215 module_exit(viafb_exit);
2216
2217 #ifdef MODULE
2218 module_param(viafb_mode, charp, S_IRUSR);
2219 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2220
2221 module_param(viafb_mode1, charp, S_IRUSR);
2222 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2223
2224 module_param(viafb_bpp, int, S_IRUSR);
2225 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2226
2227 module_param(viafb_bpp1, int, S_IRUSR);
2228 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2229
2230 module_param(viafb_refresh, int, S_IRUSR);
2231 MODULE_PARM_DESC(viafb_refresh,
2232         "Set CRT viafb_refresh rate (default = 60)");
2233
2234 module_param(viafb_refresh1, int, S_IRUSR);
2235 MODULE_PARM_DESC(viafb_refresh1,
2236         "Set CRT refresh rate (default = 60)");
2237
2238 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2239 MODULE_PARM_DESC(viafb_lcd_panel_id,
2240         "Set Flat Panel type(Default=1024x768)");
2241
2242 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2243 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2244         "Set Flat Panel display scaling method.(Default=Expandsion)");
2245
2246 module_param(viafb_SAMM_ON, int, S_IRUSR);
2247 MODULE_PARM_DESC(viafb_SAMM_ON,
2248         "Turn on/off flag of SAMM(Default=OFF)");
2249
2250 module_param(viafb_accel, int, S_IRUSR);
2251 MODULE_PARM_DESC(viafb_accel,
2252         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2253
2254 module_param(viafb_active_dev, charp, S_IRUSR);
2255 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2256
2257 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2258 MODULE_PARM_DESC(viafb_display_hardware_layout,
2259         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2260
2261 module_param(viafb_second_size, int, S_IRUSR);
2262 MODULE_PARM_DESC(viafb_second_size,
2263         "Set secondary device memory size");
2264
2265 module_param(viafb_dual_fb, int, S_IRUSR);
2266 MODULE_PARM_DESC(viafb_dual_fb,
2267         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2268
2269 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2270 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2271         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2272
2273 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2274 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2275         "Turn on/off flag of dual edge panel.(Default = OFF)");
2276
2277 module_param(viafb_bus_width, int, S_IRUSR);
2278 MODULE_PARM_DESC(viafb_bus_width,
2279         "Set bus width of panel.(Default = 12)");
2280
2281 module_param(viafb_lcd_mode, int, S_IRUSR);
2282 MODULE_PARM_DESC(viafb_lcd_mode,
2283         "Set Flat Panel mode(Default=OPENLDI)");
2284
2285 module_param(viafb_lcd_port, charp, S_IRUSR);
2286 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2287
2288 module_param(viafb_dvi_port, charp, S_IRUSR);
2289 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2290
2291 MODULE_LICENSE("GPL");
2292 #endif