Merge branch 'for-john' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211
[pandora-kernel.git] / drivers / video / via / viafbdev.c
1 /*
2  * Copyright 1998-2009 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/slab.h>
25 #include <linux/stat.h>
26 #include <linux/via-core.h>
27 #include <linux/via_i2c.h>
28 #include <asm/olpc.h>
29
30 #define _MASTER_FILE
31 #include "global.h"
32
33 static char *viafb_name = "Via";
34 static u32 pseudo_pal[17];
35
36 /* video mode */
37 static char *viafb_mode;
38 static char *viafb_mode1;
39 static int viafb_bpp = 32;
40 static int viafb_bpp1 = 32;
41
42 static unsigned int viafb_second_offset;
43 static int viafb_second_size;
44
45 static int viafb_accel = 1;
46
47 /* Added for specifying active devices.*/
48 static char *viafb_active_dev;
49
50 /*Added for specify lcd output port*/
51 static char *viafb_lcd_port = "";
52 static char *viafb_dvi_port = "";
53
54 static void retrieve_device_setting(struct viafb_ioctl_setting
55         *setting_info);
56 static int viafb_pan_display(struct fb_var_screeninfo *var,
57         struct fb_info *info);
58
59 static struct fb_ops viafb_ops;
60
61 /* supported output devices on each IGP
62  * only CX700, VX800, VX855, VX900 were documented
63  * VIA_CRT should be everywhere
64  * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
65  * source selection on CX700 and later
66  * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
67  */
68 static const u32 supported_odev_map[] = {
69         [UNICHROME_CLE266]      = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
70         [UNICHROME_K400]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
71                                 | VIA_LVDS2,
72         [UNICHROME_K800]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
73                                 | VIA_LVDS2,
74         [UNICHROME_PM800]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
75                                 | VIA_LVDS2,
76         [UNICHROME_CN700]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
77                                 | VIA_LVDS2,
78         [UNICHROME_CX700]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
79         [UNICHROME_CN750]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
80         [UNICHROME_K8M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
81         [UNICHROME_P4M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
82         [UNICHROME_P4M900]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
83         [UNICHROME_VX800]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
84         [UNICHROME_VX855]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
85         [UNICHROME_VX900]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
86 };
87
88 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
89 {
90         var->grayscale = 0;
91         var->red.msb_right = 0;
92         var->green.msb_right = 0;
93         var->blue.msb_right = 0;
94         var->transp.offset = 0;
95         var->transp.length = 0;
96         var->transp.msb_right = 0;
97         var->nonstd = 0;
98         switch (depth) {
99         case 8:
100                 var->bits_per_pixel = 8;
101                 var->red.offset = 0;
102                 var->green.offset = 0;
103                 var->blue.offset = 0;
104                 var->red.length = 8;
105                 var->green.length = 8;
106                 var->blue.length = 8;
107                 break;
108         case 15:
109                 var->bits_per_pixel = 16;
110                 var->red.offset = 10;
111                 var->green.offset = 5;
112                 var->blue.offset = 0;
113                 var->red.length = 5;
114                 var->green.length = 5;
115                 var->blue.length = 5;
116                 break;
117         case 16:
118                 var->bits_per_pixel = 16;
119                 var->red.offset = 11;
120                 var->green.offset = 5;
121                 var->blue.offset = 0;
122                 var->red.length = 5;
123                 var->green.length = 6;
124                 var->blue.length = 5;
125                 break;
126         case 24:
127                 var->bits_per_pixel = 32;
128                 var->red.offset = 16;
129                 var->green.offset = 8;
130                 var->blue.offset = 0;
131                 var->red.length = 8;
132                 var->green.length = 8;
133                 var->blue.length = 8;
134                 break;
135         case 30:
136                 var->bits_per_pixel = 32;
137                 var->red.offset = 20;
138                 var->green.offset = 10;
139                 var->blue.offset = 0;
140                 var->red.length = 10;
141                 var->green.length = 10;
142                 var->blue.length = 10;
143                 break;
144         }
145 }
146
147 static void viafb_update_fix(struct fb_info *info)
148 {
149         u32 bpp = info->var.bits_per_pixel;
150
151         info->fix.visual =
152                 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
153         info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
154                 VIA_PITCH_SIZE);
155 }
156
157 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
158         struct viafb_par *viaparinfo)
159 {
160         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
161         strcpy(fix->id, viafb_name);
162
163         fix->smem_start = viaparinfo->fbmem;
164         fix->smem_len = viaparinfo->fbmem_free;
165
166         fix->type = FB_TYPE_PACKED_PIXELS;
167         fix->type_aux = 0;
168         fix->visual = FB_VISUAL_TRUECOLOR;
169
170         fix->xpanstep = fix->ywrapstep = 0;
171         fix->ypanstep = 1;
172
173         /* Just tell the accel name */
174         viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
175 }
176 static int viafb_open(struct fb_info *info, int user)
177 {
178         DEBUG_MSG(KERN_INFO "viafb_open!\n");
179         return 0;
180 }
181
182 static int viafb_release(struct fb_info *info, int user)
183 {
184         DEBUG_MSG(KERN_INFO "viafb_release!\n");
185         return 0;
186 }
187
188 static inline int get_var_refresh(struct fb_var_screeninfo *var)
189 {
190         u32 htotal, vtotal;
191
192         htotal = var->left_margin + var->xres + var->right_margin
193                 + var->hsync_len;
194         vtotal = var->upper_margin + var->yres + var->lower_margin
195                 + var->vsync_len;
196         return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
197 }
198
199 static int viafb_check_var(struct fb_var_screeninfo *var,
200         struct fb_info *info)
201 {
202         int depth, refresh;
203         struct viafb_par *ppar = info->par;
204         u32 line;
205
206         DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
207         /* Sanity check */
208         /* HW neither support interlacte nor double-scaned mode */
209         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
210                 return -EINVAL;
211
212         /* the refresh rate is not important here, as we only want to know
213          * whether the resolution exists
214          */
215         if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
216                 DEBUG_MSG(KERN_INFO
217                           "viafb: Mode %dx%dx%d not supported!!\n",
218                           var->xres, var->yres, var->bits_per_pixel);
219                 return -EINVAL;
220         }
221
222         depth = fb_get_color_depth(var, &info->fix);
223         if (!depth)
224                 depth = var->bits_per_pixel;
225
226         if (depth < 0 || depth > 32)
227                 return -EINVAL;
228         else if (!depth)
229                 depth = 24;
230         else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
231                 depth = 15;
232         else if (depth == 30)
233                 depth = 30;
234         else if (depth <= 8)
235                 depth = 8;
236         else if (depth <= 16)
237                 depth = 16;
238         else
239                 depth = 24;
240
241         viafb_fill_var_color_info(var, depth);
242         if (var->xres_virtual < var->xres)
243                 var->xres_virtual = var->xres;
244
245         line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
246                 VIA_PITCH_SIZE);
247         if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
248                 return -EINVAL;
249
250         /* Based on var passed in to calculate the refresh,
251          * because our driver use some modes special.
252          */
253         refresh = viafb_get_refresh(var->xres, var->yres,
254                 get_var_refresh(var));
255
256         /* Adjust var according to our driver's own table */
257         viafb_fill_var_timing_info(var,
258                 viafb_get_best_mode(var->xres, var->yres, refresh));
259         if (var->accel_flags & FB_ACCELF_TEXT &&
260                 !ppar->shared->vdev->engine_mmio)
261                 var->accel_flags = 0;
262
263         return 0;
264 }
265
266 static int viafb_set_par(struct fb_info *info)
267 {
268         struct viafb_par *viapar = info->par;
269         int refresh;
270         DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
271
272         viafb_update_fix(info);
273         viapar->depth = fb_get_color_depth(&info->var, &info->fix);
274         viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
275                 viafbinfo->var.bits_per_pixel, 0);
276
277         if (viafb_dual_fb) {
278                 viafb_update_device_setting(viafbinfo1->var.xres,
279                         viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
280                         1);
281         } else if (viafb_SAMM_ON == 1) {
282                 DEBUG_MSG(KERN_INFO
283                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
284                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
285
286                 viafb_update_device_setting(viafb_second_xres,
287                         viafb_second_yres, viafb_bpp1, 1);
288         }
289
290         refresh = get_var_refresh(&info->var);
291         if (viafb_dual_fb && viapar->iga_path == IGA2) {
292                 viafb_bpp1 = info->var.bits_per_pixel;
293                 viafb_refresh1 = refresh;
294         } else {
295                 viafb_bpp = info->var.bits_per_pixel;
296                 viafb_refresh = refresh;
297         }
298
299         if (info->var.accel_flags & FB_ACCELF_TEXT)
300                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
301         else
302                 info->flags |= FBINFO_HWACCEL_DISABLED;
303         viafb_setmode();
304         viafb_pan_display(&info->var, info);
305
306         return 0;
307 }
308
309 /* Set one color register */
310 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
311 unsigned blue, unsigned transp, struct fb_info *info)
312 {
313         struct viafb_par *viapar = info->par;
314         u32 r, g, b;
315
316         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
317                 if (regno > 255)
318                         return -EINVAL;
319
320                 if (!viafb_dual_fb || viapar->iga_path == IGA1)
321                         viafb_set_primary_color_register(regno, red >> 8,
322                                 green >> 8, blue >> 8);
323
324                 if (!viafb_dual_fb || viapar->iga_path == IGA2)
325                         viafb_set_secondary_color_register(regno, red >> 8,
326                                 green >> 8, blue >> 8);
327         } else {
328                 if (regno > 15)
329                         return -EINVAL;
330
331                 r = (red >> (16 - info->var.red.length))
332                         << info->var.red.offset;
333                 b = (blue >> (16 - info->var.blue.length))
334                         << info->var.blue.offset;
335                 g = (green >> (16 - info->var.green.length))
336                         << info->var.green.offset;
337                 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
338         }
339
340         return 0;
341 }
342
343 static int viafb_pan_display(struct fb_var_screeninfo *var,
344         struct fb_info *info)
345 {
346         struct viafb_par *viapar = info->par;
347         u32 vram_addr = viapar->vram_addr
348                 + var->yoffset * info->fix.line_length
349                 + var->xoffset * info->var.bits_per_pixel / 8;
350
351         DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
352         if (!viafb_dual_fb) {
353                 via_set_primary_address(vram_addr);
354                 via_set_secondary_address(vram_addr);
355         } else if (viapar->iga_path == IGA1)
356                 via_set_primary_address(vram_addr);
357         else
358                 via_set_secondary_address(vram_addr);
359
360         return 0;
361 }
362
363 static int viafb_blank(int blank_mode, struct fb_info *info)
364 {
365         DEBUG_MSG(KERN_INFO "viafb_blank!\n");
366         /* clear DPMS setting */
367
368         switch (blank_mode) {
369         case FB_BLANK_UNBLANK:
370                 /* Screen: On, HSync: On, VSync: On */
371                 /* control CRT monitor power management */
372                 via_set_state(VIA_CRT, VIA_STATE_ON);
373                 break;
374         case FB_BLANK_HSYNC_SUSPEND:
375                 /* Screen: Off, HSync: Off, VSync: On */
376                 /* control CRT monitor power management */
377                 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
378                 break;
379         case FB_BLANK_VSYNC_SUSPEND:
380                 /* Screen: Off, HSync: On, VSync: Off */
381                 /* control CRT monitor power management */
382                 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
383                 break;
384         case FB_BLANK_POWERDOWN:
385                 /* Screen: Off, HSync: Off, VSync: Off */
386                 /* control CRT monitor power management */
387                 via_set_state(VIA_CRT, VIA_STATE_OFF);
388                 break;
389         }
390
391         return 0;
392 }
393
394 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
395 {
396         union {
397                 struct viafb_ioctl_mode viamode;
398                 struct viafb_ioctl_samm viasamm;
399                 struct viafb_driver_version driver_version;
400                 struct fb_var_screeninfo sec_var;
401                 struct _panel_size_pos_info panel_pos_size_para;
402                 struct viafb_ioctl_setting viafb_setting;
403                 struct device_t active_dev;
404         } u;
405         u32 state_info = 0;
406         u32 *viafb_gamma_table;
407         char driver_name[] = "viafb";
408
409         u32 __user *argp = (u32 __user *) arg;
410         u32 gpu32;
411
412         DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
413         printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
414         memset(&u, 0, sizeof(u));
415
416         switch (cmd) {
417         case VIAFB_GET_CHIP_INFO:
418                 if (copy_to_user(argp, viaparinfo->chip_info,
419                                 sizeof(struct chip_information)))
420                         return -EFAULT;
421                 break;
422         case VIAFB_GET_INFO_SIZE:
423                 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
424         case VIAFB_GET_INFO:
425                 return viafb_ioctl_get_viafb_info(arg);
426         case VIAFB_HOTPLUG:
427                 return put_user(viafb_ioctl_hotplug(info->var.xres,
428                                               info->var.yres,
429                                               info->var.bits_per_pixel), argp);
430         case VIAFB_SET_HOTPLUG_FLAG:
431                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
432                         return -EFAULT;
433                 viafb_hotplug = (gpu32) ? 1 : 0;
434                 break;
435         case VIAFB_GET_RESOLUTION:
436                 u.viamode.xres = (u32) viafb_hotplug_Xres;
437                 u.viamode.yres = (u32) viafb_hotplug_Yres;
438                 u.viamode.refresh = (u32) viafb_hotplug_refresh;
439                 u.viamode.bpp = (u32) viafb_hotplug_bpp;
440                 if (viafb_SAMM_ON == 1) {
441                         u.viamode.xres_sec = viafb_second_xres;
442                         u.viamode.yres_sec = viafb_second_yres;
443                         u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
444                         u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
445                         u.viamode.refresh_sec = viafb_refresh1;
446                         u.viamode.bpp_sec = viafb_bpp1;
447                 } else {
448                         u.viamode.xres_sec = 0;
449                         u.viamode.yres_sec = 0;
450                         u.viamode.virtual_xres_sec = 0;
451                         u.viamode.virtual_yres_sec = 0;
452                         u.viamode.refresh_sec = 0;
453                         u.viamode.bpp_sec = 0;
454                 }
455                 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
456                         return -EFAULT;
457                 break;
458         case VIAFB_GET_SAMM_INFO:
459                 u.viasamm.samm_status = viafb_SAMM_ON;
460
461                 if (viafb_SAMM_ON == 1) {
462                         if (viafb_dual_fb) {
463                                 u.viasamm.size_prim = viaparinfo->fbmem_free;
464                                 u.viasamm.size_sec = viaparinfo1->fbmem_free;
465                         } else {
466                                 if (viafb_second_size) {
467                                         u.viasamm.size_prim =
468                                             viaparinfo->fbmem_free -
469                                             viafb_second_size * 1024 * 1024;
470                                         u.viasamm.size_sec =
471                                             viafb_second_size * 1024 * 1024;
472                                 } else {
473                                         u.viasamm.size_prim =
474                                             viaparinfo->fbmem_free >> 1;
475                                         u.viasamm.size_sec =
476                                             (viaparinfo->fbmem_free >> 1);
477                                 }
478                         }
479                         u.viasamm.mem_base = viaparinfo->fbmem;
480                         u.viasamm.offset_sec = viafb_second_offset;
481                 } else {
482                         u.viasamm.size_prim =
483                             viaparinfo->memsize - viaparinfo->fbmem_used;
484                         u.viasamm.size_sec = 0;
485                         u.viasamm.mem_base = viaparinfo->fbmem;
486                         u.viasamm.offset_sec = 0;
487                 }
488
489                 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
490                         return -EFAULT;
491
492                 break;
493         case VIAFB_TURN_ON_OUTPUT_DEVICE:
494                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
495                         return -EFAULT;
496                 if (gpu32 & CRT_Device)
497                         via_set_state(VIA_CRT, VIA_STATE_ON);
498                 if (gpu32 & DVI_Device)
499                         viafb_dvi_enable();
500                 if (gpu32 & LCD_Device)
501                         viafb_lcd_enable();
502                 break;
503         case VIAFB_TURN_OFF_OUTPUT_DEVICE:
504                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
505                         return -EFAULT;
506                 if (gpu32 & CRT_Device)
507                         via_set_state(VIA_CRT, VIA_STATE_OFF);
508                 if (gpu32 & DVI_Device)
509                         viafb_dvi_disable();
510                 if (gpu32 & LCD_Device)
511                         viafb_lcd_disable();
512                 break;
513         case VIAFB_GET_DEVICE:
514                 u.active_dev.crt = viafb_CRT_ON;
515                 u.active_dev.dvi = viafb_DVI_ON;
516                 u.active_dev.lcd = viafb_LCD_ON;
517                 u.active_dev.samm = viafb_SAMM_ON;
518                 u.active_dev.primary_dev = viafb_primary_dev;
519
520                 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
521                 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
522                 u.active_dev.lcd_mode = viafb_lcd_mode;
523
524                 u.active_dev.xres = viafb_hotplug_Xres;
525                 u.active_dev.yres = viafb_hotplug_Yres;
526
527                 u.active_dev.xres1 = viafb_second_xres;
528                 u.active_dev.yres1 = viafb_second_yres;
529
530                 u.active_dev.bpp = viafb_bpp;
531                 u.active_dev.bpp1 = viafb_bpp1;
532                 u.active_dev.refresh = viafb_refresh;
533                 u.active_dev.refresh1 = viafb_refresh1;
534
535                 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
536                 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
537                 u.active_dev.bus_width = viafb_bus_width;
538
539                 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
540                         return -EFAULT;
541                 break;
542
543         case VIAFB_GET_DRIVER_VERSION:
544                 u.driver_version.iMajorNum = VERSION_MAJOR;
545                 u.driver_version.iKernelNum = VERSION_KERNEL;
546                 u.driver_version.iOSNum = VERSION_OS;
547                 u.driver_version.iMinorNum = VERSION_MINOR;
548
549                 if (copy_to_user(argp, &u.driver_version,
550                         sizeof(u.driver_version)))
551                         return -EFAULT;
552
553                 break;
554
555         case VIAFB_GET_DEVICE_INFO:
556
557                 retrieve_device_setting(&u.viafb_setting);
558
559                 if (copy_to_user(argp, &u.viafb_setting,
560                                  sizeof(u.viafb_setting)))
561                         return -EFAULT;
562
563                 break;
564
565         case VIAFB_GET_DEVICE_SUPPORT:
566                 viafb_get_device_support_state(&state_info);
567                 if (put_user(state_info, argp))
568                         return -EFAULT;
569                 break;
570
571         case VIAFB_GET_DEVICE_CONNECT:
572                 viafb_get_device_connect_state(&state_info);
573                 if (put_user(state_info, argp))
574                         return -EFAULT;
575                 break;
576
577         case VIAFB_GET_PANEL_SUPPORT_EXPAND:
578                 state_info =
579                     viafb_lcd_get_support_expand_state(info->var.xres,
580                                                  info->var.yres);
581                 if (put_user(state_info, argp))
582                         return -EFAULT;
583                 break;
584
585         case VIAFB_GET_DRIVER_NAME:
586                 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
587                         return -EFAULT;
588                 break;
589
590         case VIAFB_SET_GAMMA_LUT:
591                 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
592                 if (IS_ERR(viafb_gamma_table))
593                         return PTR_ERR(viafb_gamma_table);
594                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
595                 kfree(viafb_gamma_table);
596                 break;
597
598         case VIAFB_GET_GAMMA_LUT:
599                 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
600                 if (!viafb_gamma_table)
601                         return -ENOMEM;
602                 viafb_get_gamma_table(viafb_gamma_table);
603                 if (copy_to_user(argp, viafb_gamma_table,
604                         256 * sizeof(u32))) {
605                         kfree(viafb_gamma_table);
606                         return -EFAULT;
607                 }
608                 kfree(viafb_gamma_table);
609                 break;
610
611         case VIAFB_GET_GAMMA_SUPPORT_STATE:
612                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
613                 if (put_user(state_info, argp))
614                         return -EFAULT;
615                 break;
616         case VIAFB_SYNC_SURFACE:
617                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
618                 break;
619         case VIAFB_GET_DRIVER_CAPS:
620                 break;
621
622         case VIAFB_GET_PANEL_MAX_SIZE:
623                 if (copy_from_user(&u.panel_pos_size_para, argp,
624                                    sizeof(u.panel_pos_size_para)))
625                         return -EFAULT;
626                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
627                 if (copy_to_user(argp, &u.panel_pos_size_para,
628                      sizeof(u.panel_pos_size_para)))
629                         return -EFAULT;
630                 break;
631         case VIAFB_GET_PANEL_MAX_POSITION:
632                 if (copy_from_user(&u.panel_pos_size_para, argp,
633                                    sizeof(u.panel_pos_size_para)))
634                         return -EFAULT;
635                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
636                 if (copy_to_user(argp, &u.panel_pos_size_para,
637                                  sizeof(u.panel_pos_size_para)))
638                         return -EFAULT;
639                 break;
640
641         case VIAFB_GET_PANEL_POSITION:
642                 if (copy_from_user(&u.panel_pos_size_para, argp,
643                                    sizeof(u.panel_pos_size_para)))
644                         return -EFAULT;
645                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
646                 if (copy_to_user(argp, &u.panel_pos_size_para,
647                                  sizeof(u.panel_pos_size_para)))
648                         return -EFAULT;
649                 break;
650         case VIAFB_GET_PANEL_SIZE:
651                 if (copy_from_user(&u.panel_pos_size_para, argp,
652                                    sizeof(u.panel_pos_size_para)))
653                         return -EFAULT;
654                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
655                 if (copy_to_user(argp, &u.panel_pos_size_para,
656                                  sizeof(u.panel_pos_size_para)))
657                         return -EFAULT;
658                 break;
659
660         case VIAFB_SET_PANEL_POSITION:
661                 if (copy_from_user(&u.panel_pos_size_para, argp,
662                                    sizeof(u.panel_pos_size_para)))
663                         return -EFAULT;
664                 break;
665         case VIAFB_SET_PANEL_SIZE:
666                 if (copy_from_user(&u.panel_pos_size_para, argp,
667                                    sizeof(u.panel_pos_size_para)))
668                         return -EFAULT;
669                 break;
670
671         default:
672                 return -EINVAL;
673         }
674
675         return 0;
676 }
677
678 static void viafb_fillrect(struct fb_info *info,
679         const struct fb_fillrect *rect)
680 {
681         struct viafb_par *viapar = info->par;
682         struct viafb_shared *shared = viapar->shared;
683         u32 fg_color;
684         u8 rop;
685
686         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
687                 cfb_fillrect(info, rect);
688                 return;
689         }
690
691         if (!rect->width || !rect->height)
692                 return;
693
694         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
695                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
696         else
697                 fg_color = rect->color;
698
699         if (rect->rop == ROP_XOR)
700                 rop = 0x5A;
701         else
702                 rop = 0xF0;
703
704         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
705         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
706                 rect->width, rect->height, info->var.bits_per_pixel,
707                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
708                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
709                 cfb_fillrect(info, rect);
710 }
711
712 static void viafb_copyarea(struct fb_info *info,
713         const struct fb_copyarea *area)
714 {
715         struct viafb_par *viapar = info->par;
716         struct viafb_shared *shared = viapar->shared;
717
718         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
719                 cfb_copyarea(info, area);
720                 return;
721         }
722
723         if (!area->width || !area->height)
724                 return;
725
726         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
727         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
728                 area->width, area->height, info->var.bits_per_pixel,
729                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
730                 NULL, viapar->vram_addr, info->fix.line_length,
731                 area->sx, area->sy, 0, 0, 0))
732                 cfb_copyarea(info, area);
733 }
734
735 static void viafb_imageblit(struct fb_info *info,
736         const struct fb_image *image)
737 {
738         struct viafb_par *viapar = info->par;
739         struct viafb_shared *shared = viapar->shared;
740         u32 fg_color = 0, bg_color = 0;
741         u8 op;
742
743         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
744                 (image->depth != 1 && image->depth != viapar->depth)) {
745                 cfb_imageblit(info, image);
746                 return;
747         }
748
749         if (image->depth == 1) {
750                 op = VIA_BITBLT_MONO;
751                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
752                         fg_color =
753                                 ((u32 *)info->pseudo_palette)[image->fg_color];
754                         bg_color =
755                                 ((u32 *)info->pseudo_palette)[image->bg_color];
756                 } else {
757                         fg_color = image->fg_color;
758                         bg_color = image->bg_color;
759                 }
760         } else
761                 op = VIA_BITBLT_COLOR;
762
763         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
764         if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
765                 image->width, image->height, info->var.bits_per_pixel,
766                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
767                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
768                 cfb_imageblit(info, image);
769 }
770
771 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
772 {
773         struct viafb_par *viapar = info->par;
774         void __iomem *engine = viapar->shared->vdev->engine_mmio;
775         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
776                 chip_name = viapar->shared->chip_info.gfx_chip_name;
777         int i, j = 0, cur_size = 64;
778
779         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
780                 return -ENODEV;
781
782         /* LCD ouput does not support hw cursors (at least on VN896) */
783         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
784                 viafb_LCD_ON)
785                 return -ENODEV;
786
787         viafb_show_hw_cursor(info, HW_Cursor_OFF);
788
789         if (cursor->set & FB_CUR_SETHOT) {
790                 temp = (cursor->hot.x << 16) + cursor->hot.y;
791                 writel(temp, engine + VIA_REG_CURSOR_ORG);
792         }
793
794         if (cursor->set & FB_CUR_SETPOS) {
795                 yy = cursor->image.dy - info->var.yoffset;
796                 xx = cursor->image.dx - info->var.xoffset;
797                 temp = yy & 0xFFFF;
798                 temp |= (xx << 16);
799                 writel(temp, engine + VIA_REG_CURSOR_POS);
800         }
801
802         if (cursor->image.width <= 32 && cursor->image.height <= 32)
803                 cur_size = 32;
804         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
805                 cur_size = 64;
806         else {
807                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
808                         "%dx%d", cursor->image.width, cursor->image.height);
809                 return -ENXIO;
810         }
811
812         if (cursor->set & FB_CUR_SETSIZE) {
813                 temp = readl(engine + VIA_REG_CURSOR_MODE);
814                 if (cur_size == 32)
815                         temp |= 0x2;
816                 else
817                         temp &= ~0x2;
818
819                 writel(temp, engine + VIA_REG_CURSOR_MODE);
820         }
821
822         if (cursor->set & FB_CUR_SETCMAP) {
823                 fg_color = cursor->image.fg_color;
824                 bg_color = cursor->image.bg_color;
825                 if (chip_name == UNICHROME_CX700 ||
826                         chip_name == UNICHROME_VX800 ||
827                         chip_name == UNICHROME_VX855 ||
828                         chip_name == UNICHROME_VX900) {
829                         fg_color =
830                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
831                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
832                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
833                         bg_color =
834                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
835                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
836                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
837                 } else {
838                         fg_color =
839                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
840                                 (info->cmap.green[fg_color] & 0xFF00) |
841                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
842                         bg_color =
843                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
844                                 (info->cmap.green[bg_color] & 0xFF00) |
845                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
846                 }
847
848                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
849                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
850         }
851
852         if (cursor->set & FB_CUR_SETSHAPE) {
853                 struct {
854                         u8 data[CURSOR_SIZE];
855                         u32 bak[CURSOR_SIZE / 4];
856                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
857                 int size = ((cursor->image.width + 7) >> 3) *
858                         cursor->image.height;
859
860                 if (!cr_data)
861                         return -ENOMEM;
862
863                 if (cur_size == 32) {
864                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
865                                 cr_data->bak[i] = 0x0;
866                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
867                                 i += 1;
868                         }
869                 } else {
870                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
871                                 cr_data->bak[i] = 0x0;
872                                 cr_data->bak[i + 1] = 0x0;
873                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
874                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
875                                 i += 3;
876                         }
877                 }
878
879                 switch (cursor->rop) {
880                 case ROP_XOR:
881                         for (i = 0; i < size; i++)
882                                 cr_data->data[i] = cursor->mask[i];
883                         break;
884                 case ROP_COPY:
885
886                         for (i = 0; i < size; i++)
887                                 cr_data->data[i] = cursor->mask[i];
888                         break;
889                 default:
890                         break;
891                 }
892
893                 if (cur_size == 32) {
894                         for (i = 0; i < size; i++) {
895                                 cr_data->bak[j] = (u32) cr_data->data[i];
896                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
897                                 j += 2;
898                         }
899                 } else {
900                         for (i = 0; i < size; i++) {
901                                 cr_data->bak[j] = (u32) cr_data->data[i];
902                                 cr_data->bak[j + 1] = 0x0;
903                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
904                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
905                                 j += 4;
906                         }
907                 }
908
909                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
910                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
911                 kfree(cr_data);
912         }
913
914         if (cursor->enable)
915                 viafb_show_hw_cursor(info, HW_Cursor_ON);
916
917         return 0;
918 }
919
920 static int viafb_sync(struct fb_info *info)
921 {
922         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
923                 viafb_wait_engine_idle(info);
924         return 0;
925 }
926
927 static int get_primary_device(void)
928 {
929         int primary_device = 0;
930         /* Rule: device on iga1 path are the primary device. */
931         if (viafb_SAMM_ON) {
932                 if (viafb_CRT_ON) {
933                         if (viaparinfo->shared->iga1_devices & VIA_CRT) {
934                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
935                                 primary_device = CRT_Device;
936                         }
937                 }
938                 if (viafb_DVI_ON) {
939                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
940                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
941                                         viaparinfo->
942                                         tmds_setting_info->iga_path);
943                                 primary_device = DVI_Device;
944                         }
945                 }
946                 if (viafb_LCD_ON) {
947                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
948                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
949                                         viaparinfo->
950                                         lvds_setting_info->iga_path);
951                                 primary_device = LCD_Device;
952                         }
953                 }
954                 if (viafb_LCD2_ON) {
955                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
956                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
957                                         viaparinfo->
958                                         lvds_setting_info2->iga_path);
959                                 primary_device = LCD2_Device;
960                         }
961                 }
962         }
963         return primary_device;
964 }
965
966 static void retrieve_device_setting(struct viafb_ioctl_setting
967         *setting_info)
968 {
969
970         /* get device status */
971         if (viafb_CRT_ON == 1)
972                 setting_info->device_status = CRT_Device;
973         if (viafb_DVI_ON == 1)
974                 setting_info->device_status |= DVI_Device;
975         if (viafb_LCD_ON == 1)
976                 setting_info->device_status |= LCD_Device;
977         if (viafb_LCD2_ON == 1)
978                 setting_info->device_status |= LCD2_Device;
979
980         setting_info->samm_status = viafb_SAMM_ON;
981         setting_info->primary_device = get_primary_device();
982
983         setting_info->first_dev_bpp = viafb_bpp;
984         setting_info->second_dev_bpp = viafb_bpp1;
985
986         setting_info->first_dev_refresh = viafb_refresh;
987         setting_info->second_dev_refresh = viafb_refresh1;
988
989         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
990         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
991         setting_info->second_dev_hor_res = viafb_second_xres;
992         setting_info->second_dev_ver_res = viafb_second_yres;
993
994         /* Get lcd attributes */
995         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
996         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
997         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
998 }
999
1000 static int __init parse_active_dev(void)
1001 {
1002         viafb_CRT_ON = STATE_OFF;
1003         viafb_DVI_ON = STATE_OFF;
1004         viafb_LCD_ON = STATE_OFF;
1005         viafb_LCD2_ON = STATE_OFF;
1006         /* 1. Modify the active status of devices. */
1007         /* 2. Keep the order of devices, so we can set corresponding
1008            IGA path to devices in SAMM case. */
1009         /*    Note: The previous of active_dev is primary device,
1010            and the following is secondary device. */
1011         if (!viafb_active_dev) {
1012                 if (machine_is_olpc()) { /* LCD only */
1013                         viafb_LCD_ON = STATE_ON;
1014                         viafb_SAMM_ON = STATE_OFF;
1015                 } else {
1016                         viafb_CRT_ON = STATE_ON;
1017                         viafb_SAMM_ON = STATE_OFF;
1018                 }
1019         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1020                 /* CRT+DVI */
1021                 viafb_CRT_ON = STATE_ON;
1022                 viafb_DVI_ON = STATE_ON;
1023                 viafb_primary_dev = CRT_Device;
1024         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1025                 /* DVI+CRT */
1026                 viafb_CRT_ON = STATE_ON;
1027                 viafb_DVI_ON = STATE_ON;
1028                 viafb_primary_dev = DVI_Device;
1029         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1030                 /* CRT+LCD */
1031                 viafb_CRT_ON = STATE_ON;
1032                 viafb_LCD_ON = STATE_ON;
1033                 viafb_primary_dev = CRT_Device;
1034         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1035                 /* LCD+CRT */
1036                 viafb_CRT_ON = STATE_ON;
1037                 viafb_LCD_ON = STATE_ON;
1038                 viafb_primary_dev = LCD_Device;
1039         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1040                 /* DVI+LCD */
1041                 viafb_DVI_ON = STATE_ON;
1042                 viafb_LCD_ON = STATE_ON;
1043                 viafb_primary_dev = DVI_Device;
1044         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1045                 /* LCD+DVI */
1046                 viafb_DVI_ON = STATE_ON;
1047                 viafb_LCD_ON = STATE_ON;
1048                 viafb_primary_dev = LCD_Device;
1049         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1050                 viafb_LCD_ON = STATE_ON;
1051                 viafb_LCD2_ON = STATE_ON;
1052                 viafb_primary_dev = LCD_Device;
1053         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1054                 viafb_LCD_ON = STATE_ON;
1055                 viafb_LCD2_ON = STATE_ON;
1056                 viafb_primary_dev = LCD2_Device;
1057         } else if (!strcmp(viafb_active_dev, "CRT")) {
1058                 /* CRT only */
1059                 viafb_CRT_ON = STATE_ON;
1060                 viafb_SAMM_ON = STATE_OFF;
1061         } else if (!strcmp(viafb_active_dev, "DVI")) {
1062                 /* DVI only */
1063                 viafb_DVI_ON = STATE_ON;
1064                 viafb_SAMM_ON = STATE_OFF;
1065         } else if (!strcmp(viafb_active_dev, "LCD")) {
1066                 /* LCD only */
1067                 viafb_LCD_ON = STATE_ON;
1068                 viafb_SAMM_ON = STATE_OFF;
1069         } else
1070                 return -EINVAL;
1071
1072         return 0;
1073 }
1074
1075 static int parse_port(char *opt_str, int *output_interface)
1076 {
1077         if (!strncmp(opt_str, "DVP0", 4))
1078                 *output_interface = INTERFACE_DVP0;
1079         else if (!strncmp(opt_str, "DVP1", 4))
1080                 *output_interface = INTERFACE_DVP1;
1081         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1082                 *output_interface = INTERFACE_DFP;
1083         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1084                 *output_interface = INTERFACE_DFP_HIGH;
1085         else if (!strncmp(opt_str, "DFP_LOW", 7))
1086                 *output_interface = INTERFACE_DFP_LOW;
1087         else
1088                 *output_interface = INTERFACE_NONE;
1089         return 0;
1090 }
1091
1092 static void parse_lcd_port(void)
1093 {
1094         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1095                 output_interface);
1096         /*Initialize to avoid unexpected behavior */
1097         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1098         INTERFACE_NONE;
1099
1100         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1101                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1102                   output_interface);
1103 }
1104
1105 static void parse_dvi_port(void)
1106 {
1107         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1108                 output_interface);
1109
1110         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1111                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1112                   output_interface);
1113 }
1114
1115 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1116
1117 /*
1118  * The proc filesystem read/write function, a simple proc implement to
1119  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1120  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1121  * CR9B,    SR65,    CR97,    CR99
1122  */
1123 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1124 {
1125         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1126         dvp0_data_dri =
1127             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1128             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1129         dvp0_clk_dri =
1130             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1131             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1132         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1133         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1134         return 0;
1135 }
1136
1137 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1138 {
1139         return single_open(file, viafb_dvp0_proc_show, NULL);
1140 }
1141
1142 static ssize_t viafb_dvp0_proc_write(struct file *file,
1143         const char __user *buffer, size_t count, loff_t *pos)
1144 {
1145         char buf[20], *value, *pbuf;
1146         u8 reg_val = 0;
1147         unsigned long length, i;
1148         if (count < 1)
1149                 return -EINVAL;
1150         length = count > 20 ? 20 : count;
1151         if (copy_from_user(&buf[0], buffer, length))
1152                 return -EFAULT;
1153         buf[length - 1] = '\0'; /*Ensure end string */
1154         pbuf = &buf[0];
1155         for (i = 0; i < 3; i++) {
1156                 value = strsep(&pbuf, " ");
1157                 if (value != NULL) {
1158                         if (kstrtou8(value, 0, &reg_val) < 0)
1159                                 return -EINVAL;
1160                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1161                                   reg_val);
1162                         switch (i) {
1163                         case 0:
1164                                 viafb_write_reg_mask(CR96, VIACR,
1165                                         reg_val, 0x0f);
1166                                 break;
1167                         case 1:
1168                                 viafb_write_reg_mask(SR2A, VIASR,
1169                                         reg_val << 4, BIT5);
1170                                 viafb_write_reg_mask(SR1B, VIASR,
1171                                         reg_val << 1, BIT1);
1172                                 break;
1173                         case 2:
1174                                 viafb_write_reg_mask(SR2A, VIASR,
1175                                         reg_val << 3, BIT4);
1176                                 viafb_write_reg_mask(SR1E, VIASR,
1177                                         reg_val << 2, BIT2);
1178                                 break;
1179                         default:
1180                                 break;
1181                         }
1182                 } else {
1183                         break;
1184                 }
1185         }
1186         return count;
1187 }
1188
1189 static const struct file_operations viafb_dvp0_proc_fops = {
1190         .owner          = THIS_MODULE,
1191         .open           = viafb_dvp0_proc_open,
1192         .read           = seq_read,
1193         .llseek         = seq_lseek,
1194         .release        = single_release,
1195         .write          = viafb_dvp0_proc_write,
1196 };
1197
1198 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1199 {
1200         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1201         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1202         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1203         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1204         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1205         return 0;
1206 }
1207
1208 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1209 {
1210         return single_open(file, viafb_dvp1_proc_show, NULL);
1211 }
1212
1213 static ssize_t viafb_dvp1_proc_write(struct file *file,
1214         const char __user *buffer, size_t count, loff_t *pos)
1215 {
1216         char buf[20], *value, *pbuf;
1217         u8 reg_val = 0;
1218         unsigned long length, i;
1219         if (count < 1)
1220                 return -EINVAL;
1221         length = count > 20 ? 20 : count;
1222         if (copy_from_user(&buf[0], buffer, length))
1223                 return -EFAULT;
1224         buf[length - 1] = '\0'; /*Ensure end string */
1225         pbuf = &buf[0];
1226         for (i = 0; i < 3; i++) {
1227                 value = strsep(&pbuf, " ");
1228                 if (value != NULL) {
1229                         if (kstrtou8(value, 0, &reg_val) < 0)
1230                                 return -EINVAL;
1231                         switch (i) {
1232                         case 0:
1233                                 viafb_write_reg_mask(CR9B, VIACR,
1234                                         reg_val, 0x0f);
1235                                 break;
1236                         case 1:
1237                                 viafb_write_reg_mask(SR65, VIASR,
1238                                         reg_val << 2, 0x0c);
1239                                 break;
1240                         case 2:
1241                                 viafb_write_reg_mask(SR65, VIASR,
1242                                         reg_val, 0x03);
1243                                 break;
1244                         default:
1245                                 break;
1246                         }
1247                 } else {
1248                         break;
1249                 }
1250         }
1251         return count;
1252 }
1253
1254 static const struct file_operations viafb_dvp1_proc_fops = {
1255         .owner          = THIS_MODULE,
1256         .open           = viafb_dvp1_proc_open,
1257         .read           = seq_read,
1258         .llseek         = seq_lseek,
1259         .release        = single_release,
1260         .write          = viafb_dvp1_proc_write,
1261 };
1262
1263 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1264 {
1265         u8 dfp_high = 0;
1266         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1267         seq_printf(m, "%x\n", dfp_high);
1268         return 0;
1269 }
1270
1271 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1272 {
1273         return single_open(file, viafb_dfph_proc_show, NULL);
1274 }
1275
1276 static ssize_t viafb_dfph_proc_write(struct file *file,
1277         const char __user *buffer, size_t count, loff_t *pos)
1278 {
1279         int err;
1280         u8 reg_val;
1281         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1282         if (err)
1283                 return err;
1284
1285         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1286         return count;
1287 }
1288
1289 static const struct file_operations viafb_dfph_proc_fops = {
1290         .owner          = THIS_MODULE,
1291         .open           = viafb_dfph_proc_open,
1292         .read           = seq_read,
1293         .llseek         = seq_lseek,
1294         .release        = single_release,
1295         .write          = viafb_dfph_proc_write,
1296 };
1297
1298 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1299 {
1300         u8 dfp_low = 0;
1301         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1302         seq_printf(m, "%x\n", dfp_low);
1303         return 0;
1304 }
1305
1306 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1307 {
1308         return single_open(file, viafb_dfpl_proc_show, NULL);
1309 }
1310
1311 static ssize_t viafb_dfpl_proc_write(struct file *file,
1312         const char __user *buffer, size_t count, loff_t *pos)
1313 {
1314         int err;
1315         u8 reg_val;
1316         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1317         if (err)
1318                 return err;
1319
1320         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1321         return count;
1322 }
1323
1324 static const struct file_operations viafb_dfpl_proc_fops = {
1325         .owner          = THIS_MODULE,
1326         .open           = viafb_dfpl_proc_open,
1327         .read           = seq_read,
1328         .llseek         = seq_lseek,
1329         .release        = single_release,
1330         .write          = viafb_dfpl_proc_write,
1331 };
1332
1333 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1334 {
1335         u8 vt1636_08 = 0, vt1636_09 = 0;
1336         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1337         case VT1636_LVDS:
1338                 vt1636_08 =
1339                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1340                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1341                 vt1636_09 =
1342                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1343                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1344                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1345                 break;
1346         default:
1347                 break;
1348         }
1349         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1350         case VT1636_LVDS:
1351                 vt1636_08 =
1352                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1353                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1354                 vt1636_09 =
1355                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1356                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1357                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1358                 break;
1359         default:
1360                 break;
1361         }
1362         return 0;
1363 }
1364
1365 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1366 {
1367         return single_open(file, viafb_vt1636_proc_show, NULL);
1368 }
1369
1370 static ssize_t viafb_vt1636_proc_write(struct file *file,
1371         const char __user *buffer, size_t count, loff_t *pos)
1372 {
1373         char buf[30], *value, *pbuf;
1374         struct IODATA reg_val;
1375         unsigned long length, i;
1376         if (count < 1)
1377                 return -EINVAL;
1378         length = count > 30 ? 30 : count;
1379         if (copy_from_user(&buf[0], buffer, length))
1380                 return -EFAULT;
1381         buf[length - 1] = '\0'; /*Ensure end string */
1382         pbuf = &buf[0];
1383         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1384         case VT1636_LVDS:
1385                 for (i = 0; i < 2; i++) {
1386                         value = strsep(&pbuf, " ");
1387                         if (value != NULL) {
1388                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1389                                         return -EINVAL;
1390                                 switch (i) {
1391                                 case 0:
1392                                         reg_val.Index = 0x08;
1393                                         reg_val.Mask = 0x0f;
1394                                         viafb_gpio_i2c_write_mask_lvds
1395                                             (viaparinfo->lvds_setting_info,
1396                                             &viaparinfo->
1397                                             chip_info->lvds_chip_info,
1398                                              reg_val);
1399                                         break;
1400                                 case 1:
1401                                         reg_val.Index = 0x09;
1402                                         reg_val.Mask = 0x1f;
1403                                         viafb_gpio_i2c_write_mask_lvds
1404                                             (viaparinfo->lvds_setting_info,
1405                                             &viaparinfo->
1406                                             chip_info->lvds_chip_info,
1407                                              reg_val);
1408                                         break;
1409                                 default:
1410                                         break;
1411                                 }
1412                         } else {
1413                                 break;
1414                         }
1415                 }
1416                 break;
1417         default:
1418                 break;
1419         }
1420         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1421         case VT1636_LVDS:
1422                 for (i = 0; i < 2; i++) {
1423                         value = strsep(&pbuf, " ");
1424                         if (value != NULL) {
1425                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1426                                         return -EINVAL;
1427                                 switch (i) {
1428                                 case 0:
1429                                         reg_val.Index = 0x08;
1430                                         reg_val.Mask = 0x0f;
1431                                         viafb_gpio_i2c_write_mask_lvds
1432                                             (viaparinfo->lvds_setting_info2,
1433                                             &viaparinfo->
1434                                             chip_info->lvds_chip_info2,
1435                                              reg_val);
1436                                         break;
1437                                 case 1:
1438                                         reg_val.Index = 0x09;
1439                                         reg_val.Mask = 0x1f;
1440                                         viafb_gpio_i2c_write_mask_lvds
1441                                             (viaparinfo->lvds_setting_info2,
1442                                             &viaparinfo->
1443                                             chip_info->lvds_chip_info2,
1444                                              reg_val);
1445                                         break;
1446                                 default:
1447                                         break;
1448                                 }
1449                         } else {
1450                                 break;
1451                         }
1452                 }
1453                 break;
1454         default:
1455                 break;
1456         }
1457         return count;
1458 }
1459
1460 static const struct file_operations viafb_vt1636_proc_fops = {
1461         .owner          = THIS_MODULE,
1462         .open           = viafb_vt1636_proc_open,
1463         .read           = seq_read,
1464         .llseek         = seq_lseek,
1465         .release        = single_release,
1466         .write          = viafb_vt1636_proc_write,
1467 };
1468
1469 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1470
1471 static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1472 {
1473         via_odev_to_seq(m, supported_odev_map[
1474                 viaparinfo->shared->chip_info.gfx_chip_name]);
1475         return 0;
1476 }
1477
1478 static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file)
1479 {
1480         return single_open(file, viafb_sup_odev_proc_show, NULL);
1481 }
1482
1483 static const struct file_operations viafb_sup_odev_proc_fops = {
1484         .owner          = THIS_MODULE,
1485         .open           = viafb_sup_odev_proc_open,
1486         .read           = seq_read,
1487         .llseek         = seq_lseek,
1488         .release        = single_release,
1489 };
1490
1491 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1492 {
1493         char buf[64], *ptr = buf;
1494         u32 devices;
1495         bool add, sub;
1496
1497         if (count < 1 || count > 63)
1498                 return -EINVAL;
1499         if (copy_from_user(&buf[0], buffer, count))
1500                 return -EFAULT;
1501         buf[count] = '\0';
1502         add = buf[0] == '+';
1503         sub = buf[0] == '-';
1504         if (add || sub)
1505                 ptr++;
1506         devices = via_parse_odev(ptr, &ptr);
1507         if (*ptr == '\n')
1508                 ptr++;
1509         if (*ptr != 0)
1510                 return -EINVAL;
1511         if (add)
1512                 *odev |= devices;
1513         else if (sub)
1514                 *odev &= ~devices;
1515         else
1516                 *odev = devices;
1517         return count;
1518 }
1519
1520 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1521 {
1522         via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1523         return 0;
1524 }
1525
1526 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1527 {
1528         return single_open(file, viafb_iga1_odev_proc_show, NULL);
1529 }
1530
1531 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1532         const char __user *buffer, size_t count, loff_t *pos)
1533 {
1534         u32 dev_on, dev_off, dev_old, dev_new;
1535         ssize_t res;
1536
1537         dev_old = dev_new = viaparinfo->shared->iga1_devices;
1538         res = odev_update(buffer, count, &dev_new);
1539         if (res != count)
1540                 return res;
1541         dev_off = dev_old & ~dev_new;
1542         dev_on = dev_new & ~dev_old;
1543         viaparinfo->shared->iga1_devices = dev_new;
1544         viaparinfo->shared->iga2_devices &= ~dev_new;
1545         via_set_state(dev_off, VIA_STATE_OFF);
1546         via_set_source(dev_new, IGA1);
1547         via_set_state(dev_on, VIA_STATE_ON);
1548         return res;
1549 }
1550
1551 static const struct file_operations viafb_iga1_odev_proc_fops = {
1552         .owner          = THIS_MODULE,
1553         .open           = viafb_iga1_odev_proc_open,
1554         .read           = seq_read,
1555         .llseek         = seq_lseek,
1556         .release        = single_release,
1557         .write          = viafb_iga1_odev_proc_write,
1558 };
1559
1560 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1561 {
1562         via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1563         return 0;
1564 }
1565
1566 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1567 {
1568         return single_open(file, viafb_iga2_odev_proc_show, NULL);
1569 }
1570
1571 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1572         const char __user *buffer, size_t count, loff_t *pos)
1573 {
1574         u32 dev_on, dev_off, dev_old, dev_new;
1575         ssize_t res;
1576
1577         dev_old = dev_new = viaparinfo->shared->iga2_devices;
1578         res = odev_update(buffer, count, &dev_new);
1579         if (res != count)
1580                 return res;
1581         dev_off = dev_old & ~dev_new;
1582         dev_on = dev_new & ~dev_old;
1583         viaparinfo->shared->iga2_devices = dev_new;
1584         viaparinfo->shared->iga1_devices &= ~dev_new;
1585         via_set_state(dev_off, VIA_STATE_OFF);
1586         via_set_source(dev_new, IGA2);
1587         via_set_state(dev_on, VIA_STATE_ON);
1588         return res;
1589 }
1590
1591 static const struct file_operations viafb_iga2_odev_proc_fops = {
1592         .owner          = THIS_MODULE,
1593         .open           = viafb_iga2_odev_proc_open,
1594         .read           = seq_read,
1595         .llseek         = seq_lseek,
1596         .release        = single_release,
1597         .write          = viafb_iga2_odev_proc_write,
1598 };
1599
1600 #define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1601 static void viafb_init_proc(struct viafb_shared *shared)
1602 {
1603         struct proc_dir_entry *iga1_entry, *iga2_entry,
1604                 *viafb_entry = proc_mkdir("viafb", NULL);
1605
1606         shared->proc_entry = viafb_entry;
1607         if (viafb_entry) {
1608 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1609                 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1610                 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1611                 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1612                 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1613                 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1614                         || IS_VT1636(shared->chip_info.lvds_chip_info2))
1615                         proc_create("vt1636", 0, viafb_entry,
1616                                 &viafb_vt1636_proc_fops);
1617 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1618
1619                 proc_create("supported_output_devices", 0, viafb_entry,
1620                         &viafb_sup_odev_proc_fops);
1621                 iga1_entry = proc_mkdir("iga1", viafb_entry);
1622                 shared->iga1_proc_entry = iga1_entry;
1623                 proc_create("output_devices", 0, iga1_entry,
1624                         &viafb_iga1_odev_proc_fops);
1625                 iga2_entry = proc_mkdir("iga2", viafb_entry);
1626                 shared->iga2_proc_entry = iga2_entry;
1627                 proc_create("output_devices", 0, iga2_entry,
1628                         &viafb_iga2_odev_proc_fops);
1629         }
1630 }
1631 static void viafb_remove_proc(struct viafb_shared *shared)
1632 {
1633         struct proc_dir_entry *viafb_entry = shared->proc_entry,
1634                 *iga1_entry = shared->iga1_proc_entry,
1635                 *iga2_entry = shared->iga2_proc_entry;
1636
1637         if (!viafb_entry)
1638                 return;
1639
1640         remove_proc_entry("output_devices", iga2_entry);
1641         remove_proc_entry("iga2", viafb_entry);
1642         remove_proc_entry("output_devices", iga1_entry);
1643         remove_proc_entry("iga1", viafb_entry);
1644         remove_proc_entry("supported_output_devices", viafb_entry);
1645
1646 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1647         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1648         remove_proc_entry("dvp1", viafb_entry);
1649         remove_proc_entry("dfph", viafb_entry);
1650         remove_proc_entry("dfpl", viafb_entry);
1651         if (IS_VT1636(shared->chip_info.lvds_chip_info)
1652                 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1653                 remove_proc_entry("vt1636", viafb_entry);
1654 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1655
1656         remove_proc_entry("viafb", NULL);
1657 }
1658 #undef IS_VT1636
1659
1660 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1661 {
1662         const struct fb_videomode *mode = NULL;
1663         char *ptr;
1664
1665         if (!str) {
1666                 if (devices == VIA_CRT)
1667                         mode = via_aux_get_preferred_mode(
1668                                 viaparinfo->shared->i2c_26);
1669                 else if (devices == VIA_DVP1)
1670                         mode = via_aux_get_preferred_mode(
1671                                 viaparinfo->shared->i2c_31);
1672
1673                 if (mode) {
1674                         *xres = mode->xres;
1675                         *yres = mode->yres;
1676                 } else if (machine_is_olpc()) {
1677                         *xres = 1200;
1678                         *yres = 900;
1679                 } else {
1680                         *xres = 640;
1681                         *yres = 480;
1682                 }
1683                 return 0;
1684         }
1685
1686         *xres = simple_strtoul(str, &ptr, 10);
1687         if (ptr[0] != 'x')
1688                 return -EINVAL;
1689
1690         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1691         if (ptr[0])
1692                 return -EINVAL;
1693
1694         return 0;
1695 }
1696
1697
1698 #ifdef CONFIG_PM
1699 static int viafb_suspend(void *unused)
1700 {
1701         console_lock();
1702         fb_set_suspend(viafbinfo, 1);
1703         viafb_sync(viafbinfo);
1704         console_unlock();
1705
1706         return 0;
1707 }
1708
1709 static int viafb_resume(void *unused)
1710 {
1711         console_lock();
1712         if (viaparinfo->shared->vdev->engine_mmio)
1713                 viafb_reset_engine(viaparinfo);
1714         viafb_set_par(viafbinfo);
1715         if (viafb_dual_fb)
1716                 viafb_set_par(viafbinfo1);
1717         fb_set_suspend(viafbinfo, 0);
1718
1719         console_unlock();
1720         return 0;
1721 }
1722
1723 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1724         .suspend = viafb_suspend,
1725         .resume = viafb_resume
1726 };
1727
1728 #endif
1729
1730 static void i2c_bus_probe(struct viafb_shared *shared)
1731 {
1732         /* should be always CRT */
1733         printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1734         shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1735
1736         /* seems to be usually DVP1 */
1737         printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1738         shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1739
1740         /* FIXME: what is this? */
1741         if (!machine_is_olpc()) {
1742                 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1743                 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1744         }
1745
1746         printk(KERN_INFO "viafb: Finished I2C bus probing");
1747 }
1748
1749 static void i2c_bus_free(struct viafb_shared *shared)
1750 {
1751         via_aux_free(shared->i2c_26);
1752         via_aux_free(shared->i2c_31);
1753         via_aux_free(shared->i2c_2C);
1754 }
1755
1756 int via_fb_pci_probe(struct viafb_dev *vdev)
1757 {
1758         u32 default_xres, default_yres;
1759         struct fb_var_screeninfo default_var;
1760         int rc;
1761         u32 viafb_par_length;
1762
1763         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1764         memset(&default_var, 0, sizeof(default_var));
1765         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1766
1767         /* Allocate fb_info and ***_par here, also including some other needed
1768          * variables
1769         */
1770         viafbinfo = framebuffer_alloc(viafb_par_length +
1771                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1772                 &vdev->pdev->dev);
1773         if (!viafbinfo) {
1774                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1775                 return -ENOMEM;
1776         }
1777
1778         viaparinfo = (struct viafb_par *)viafbinfo->par;
1779         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1780         viaparinfo->shared->vdev = vdev;
1781         viaparinfo->vram_addr = 0;
1782         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1783         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1784         viaparinfo->lvds_setting_info2 =
1785                 &viaparinfo->shared->lvds_setting_info2;
1786         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1787
1788         i2c_bus_probe(viaparinfo->shared);
1789         if (viafb_dual_fb)
1790                 viafb_SAMM_ON = 1;
1791         parse_lcd_port();
1792         parse_dvi_port();
1793
1794         viafb_init_chip_info(vdev->chip_type);
1795         /*
1796          * The framebuffer will have been successfully mapped by
1797          * the core (or we'd not be here), but we still need to
1798          * set up our own accounting.
1799          */
1800         viaparinfo->fbmem = vdev->fbmem_start;
1801         viaparinfo->memsize = vdev->fbmem_len;
1802         viaparinfo->fbmem_free = viaparinfo->memsize;
1803         viaparinfo->fbmem_used = 0;
1804         viafbinfo->screen_base = vdev->fbmem;
1805
1806         viafbinfo->fix.mmio_start = vdev->engine_start;
1807         viafbinfo->fix.mmio_len = vdev->engine_len;
1808         viafbinfo->node = 0;
1809         viafbinfo->fbops = &viafb_ops;
1810         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1811
1812         viafbinfo->pseudo_palette = pseudo_pal;
1813         if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1814                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1815                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1816                 default_var.accel_flags = FB_ACCELF_TEXT;
1817         } else {
1818                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1819                 default_var.accel_flags = 0;
1820         }
1821
1822         if (viafb_second_size && (viafb_second_size < 8)) {
1823                 viafb_second_offset = viaparinfo->fbmem_free -
1824                         viafb_second_size * 1024 * 1024;
1825         } else {
1826                 viafb_second_size = 8;
1827                 viafb_second_offset = viaparinfo->fbmem_free -
1828                         viafb_second_size * 1024 * 1024;
1829         }
1830
1831         parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1832                 &default_xres, &default_yres);
1833         if (viafb_SAMM_ON == 1)
1834                 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1835                         &viafb_second_xres, &viafb_second_yres);
1836
1837         default_var.xres = default_xres;
1838         default_var.yres = default_yres;
1839         default_var.xres_virtual = default_xres;
1840         default_var.yres_virtual = default_yres;
1841         default_var.bits_per_pixel = viafb_bpp;
1842         viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1843                 default_var.xres, default_var.yres, viafb_refresh));
1844         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1845         viafbinfo->var = default_var;
1846
1847         if (viafb_dual_fb) {
1848                 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1849                                 &vdev->pdev->dev);
1850                 if (!viafbinfo1) {
1851                         printk(KERN_ERR
1852                         "allocate the second framebuffer struct error\n");
1853                         rc = -ENOMEM;
1854                         goto out_fb_release;
1855                 }
1856                 viaparinfo1 = viafbinfo1->par;
1857                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1858                 viaparinfo1->vram_addr = viafb_second_offset;
1859                 viaparinfo1->memsize = viaparinfo->memsize -
1860                         viafb_second_offset;
1861                 viaparinfo->memsize = viafb_second_offset;
1862                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1863
1864                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1865                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1866                         viaparinfo1->fbmem_used;
1867                 viaparinfo->fbmem_free = viaparinfo->memsize;
1868                 viaparinfo->fbmem_used = 0;
1869
1870                 viaparinfo->iga_path = IGA1;
1871                 viaparinfo1->iga_path = IGA2;
1872                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1873                 viafbinfo1->par = viaparinfo1;
1874                 viafbinfo1->screen_base = viafbinfo->screen_base +
1875                         viafb_second_offset;
1876
1877                 default_var.xres = viafb_second_xres;
1878                 default_var.yres = viafb_second_yres;
1879                 default_var.xres_virtual = viafb_second_xres;
1880                 default_var.yres_virtual = viafb_second_yres;
1881                 default_var.bits_per_pixel = viafb_bpp1;
1882                 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1883                         default_var.xres, default_var.yres, viafb_refresh1));
1884
1885                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1886                 viafb_check_var(&default_var, viafbinfo1);
1887                 viafbinfo1->var = default_var;
1888                 viafb_update_fix(viafbinfo1);
1889                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1890                         &viafbinfo1->fix);
1891         }
1892
1893         viafb_check_var(&viafbinfo->var, viafbinfo);
1894         viafb_update_fix(viafbinfo);
1895         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1896                 &viafbinfo->fix);
1897         default_var.activate = FB_ACTIVATE_NOW;
1898         rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1899         if (rc)
1900                 goto out_fb1_release;
1901
1902         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1903             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1904                 rc = register_framebuffer(viafbinfo1);
1905                 if (rc)
1906                         goto out_dealloc_cmap;
1907         }
1908         rc = register_framebuffer(viafbinfo);
1909         if (rc)
1910                 goto out_fb1_unreg_lcd_cle266;
1911
1912         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1913                         || (viaparinfo->chip_info->gfx_chip_name !=
1914                         UNICHROME_CLE266))) {
1915                 rc = register_framebuffer(viafbinfo1);
1916                 if (rc)
1917                         goto out_fb_unreg;
1918         }
1919         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1920                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1921                   default_var.yres, default_var.bits_per_pixel);
1922
1923         viafb_init_proc(viaparinfo->shared);
1924         viafb_init_dac(IGA2);
1925
1926 #ifdef CONFIG_PM
1927         viafb_pm_register(&viafb_fb_pm_hooks);
1928 #endif
1929         return 0;
1930
1931 out_fb_unreg:
1932         unregister_framebuffer(viafbinfo);
1933 out_fb1_unreg_lcd_cle266:
1934         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1935             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1936                 unregister_framebuffer(viafbinfo1);
1937 out_dealloc_cmap:
1938         fb_dealloc_cmap(&viafbinfo->cmap);
1939 out_fb1_release:
1940         if (viafbinfo1)
1941                 framebuffer_release(viafbinfo1);
1942 out_fb_release:
1943         i2c_bus_free(viaparinfo->shared);
1944         framebuffer_release(viafbinfo);
1945         return rc;
1946 }
1947
1948 void via_fb_pci_remove(struct pci_dev *pdev)
1949 {
1950         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1951         fb_dealloc_cmap(&viafbinfo->cmap);
1952         unregister_framebuffer(viafbinfo);
1953         if (viafb_dual_fb)
1954                 unregister_framebuffer(viafbinfo1);
1955         viafb_remove_proc(viaparinfo->shared);
1956         i2c_bus_free(viaparinfo->shared);
1957         framebuffer_release(viafbinfo);
1958         if (viafb_dual_fb)
1959                 framebuffer_release(viafbinfo1);
1960 }
1961
1962 #ifndef MODULE
1963 static int __init viafb_setup(void)
1964 {
1965         char *this_opt;
1966         char *options;
1967
1968         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1969
1970         if (fb_get_options("viafb", &options))
1971                 return -ENODEV;
1972
1973         if (!options || !*options)
1974                 return 0;
1975
1976         while ((this_opt = strsep(&options, ",")) != NULL) {
1977                 if (!*this_opt)
1978                         continue;
1979
1980                 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1981                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1982                 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1983                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1984                 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1985                         if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1986                                 return -EINVAL;
1987                 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1988                         if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1989                                 return -EINVAL;
1990                 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1991                         if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1992                                 return -EINVAL;
1993                 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1994                         if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1995                                 return -EINVAL;
1996                 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1997                         if (kstrtoint(this_opt + 21, 0,
1998                                       &viafb_lcd_dsp_method) < 0)
1999                                 return -EINVAL;
2000                 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
2001                         if (kstrtoint(this_opt + 19, 0,
2002                                       &viafb_lcd_panel_id) < 0)
2003                                 return -EINVAL;
2004                 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
2005                         if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
2006                                 return -EINVAL;
2007                 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
2008                         if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
2009                                 return -EINVAL;
2010                 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
2011                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2012                 } else if (!strncmp(this_opt,
2013                         "viafb_display_hardware_layout=", 30)) {
2014                         if (kstrtoint(this_opt + 30, 0,
2015                                       &viafb_display_hardware_layout) < 0)
2016                                 return -EINVAL;
2017                 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2018                         if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2019                                 return -EINVAL;
2020                 } else if (!strncmp(this_opt,
2021                         "viafb_platform_epia_dvi=", 24)) {
2022                         if (kstrtoint(this_opt + 24, 0,
2023                                       &viafb_platform_epia_dvi) < 0)
2024                                 return -EINVAL;
2025                 } else if (!strncmp(this_opt,
2026                         "viafb_device_lcd_dualedge=", 26)) {
2027                         if (kstrtoint(this_opt + 26, 0,
2028                                       &viafb_device_lcd_dualedge) < 0)
2029                                 return -EINVAL;
2030                 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2031                         if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2032                                 return -EINVAL;
2033                 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2034                         if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2035                                 return -EINVAL;
2036                 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2037                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2038                 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2039                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2040                 }
2041         }
2042         return 0;
2043 }
2044 #endif
2045
2046 /*
2047  * These are called out of via-core for now.
2048  */
2049 int __init viafb_init(void)
2050 {
2051         u32 dummy_x, dummy_y;
2052         int r = 0;
2053
2054         if (machine_is_olpc())
2055                 /* Apply XO-1.5-specific configuration. */
2056                 viafb_lcd_panel_id = 23;
2057
2058 #ifndef MODULE
2059         r = viafb_setup();
2060         if (r < 0)
2061                 return r;
2062 #endif
2063         if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2064                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2065                 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2066                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2067                 || viafb_bpp < 0 || viafb_bpp > 32
2068                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2069                 || parse_active_dev())
2070                 return -EINVAL;
2071
2072         printk(KERN_INFO
2073        "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2074                VERSION_MAJOR, VERSION_MINOR);
2075         return r;
2076 }
2077
2078 void __exit viafb_exit(void)
2079 {
2080         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2081 }
2082
2083 static struct fb_ops viafb_ops = {
2084         .owner = THIS_MODULE,
2085         .fb_open = viafb_open,
2086         .fb_release = viafb_release,
2087         .fb_check_var = viafb_check_var,
2088         .fb_set_par = viafb_set_par,
2089         .fb_setcolreg = viafb_setcolreg,
2090         .fb_pan_display = viafb_pan_display,
2091         .fb_blank = viafb_blank,
2092         .fb_fillrect = viafb_fillrect,
2093         .fb_copyarea = viafb_copyarea,
2094         .fb_imageblit = viafb_imageblit,
2095         .fb_cursor = viafb_cursor,
2096         .fb_ioctl = viafb_ioctl,
2097         .fb_sync = viafb_sync,
2098 };
2099
2100
2101 #ifdef MODULE
2102 module_param(viafb_mode, charp, S_IRUSR);
2103 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2104
2105 module_param(viafb_mode1, charp, S_IRUSR);
2106 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2107
2108 module_param(viafb_bpp, int, S_IRUSR);
2109 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2110
2111 module_param(viafb_bpp1, int, S_IRUSR);
2112 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2113
2114 module_param(viafb_refresh, int, S_IRUSR);
2115 MODULE_PARM_DESC(viafb_refresh,
2116         "Set CRT viafb_refresh rate (default = 60)");
2117
2118 module_param(viafb_refresh1, int, S_IRUSR);
2119 MODULE_PARM_DESC(viafb_refresh1,
2120         "Set CRT refresh rate (default = 60)");
2121
2122 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2123 MODULE_PARM_DESC(viafb_lcd_panel_id,
2124         "Set Flat Panel type(Default=1024x768)");
2125
2126 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2127 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2128         "Set Flat Panel display scaling method.(Default=Expandsion)");
2129
2130 module_param(viafb_SAMM_ON, int, S_IRUSR);
2131 MODULE_PARM_DESC(viafb_SAMM_ON,
2132         "Turn on/off flag of SAMM(Default=OFF)");
2133
2134 module_param(viafb_accel, int, S_IRUSR);
2135 MODULE_PARM_DESC(viafb_accel,
2136         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2137
2138 module_param(viafb_active_dev, charp, S_IRUSR);
2139 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2140
2141 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2142 MODULE_PARM_DESC(viafb_display_hardware_layout,
2143         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2144
2145 module_param(viafb_second_size, int, S_IRUSR);
2146 MODULE_PARM_DESC(viafb_second_size,
2147         "Set secondary device memory size");
2148
2149 module_param(viafb_dual_fb, int, S_IRUSR);
2150 MODULE_PARM_DESC(viafb_dual_fb,
2151         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2152
2153 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2154 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2155         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2156
2157 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2158 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2159         "Turn on/off flag of dual edge panel.(Default = OFF)");
2160
2161 module_param(viafb_bus_width, int, S_IRUSR);
2162 MODULE_PARM_DESC(viafb_bus_width,
2163         "Set bus width of panel.(Default = 12)");
2164
2165 module_param(viafb_lcd_mode, int, S_IRUSR);
2166 MODULE_PARM_DESC(viafb_lcd_mode,
2167         "Set Flat Panel mode(Default=OPENLDI)");
2168
2169 module_param(viafb_lcd_port, charp, S_IRUSR);
2170 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2171
2172 module_param(viafb_dvi_port, charp, S_IRUSR);
2173 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2174
2175 MODULE_LICENSE("GPL");
2176 #endif