Linux Kernel  3.7.1
 All Data Structures Namespaces Files Functions Variables Typedefs Enumerations Enumerator Macros Groups Pages
viafbdev.c
Go to the documentation of this file.
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 __devinit 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 __devinit 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 __devinit 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 __devinit 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 __devinit 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 __devexit 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
Generated on Thu Jan 10 2013 14:42:26 for Linux Kernel by   doxygen 1.8.2