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drivers/video/via: use memdup_user
[deliverable/linux.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
28 #define _MASTER_FILE
29 #include "global.h"
30
31 static char *viafb_name = "Via";
32 static u32 pseudo_pal[17];
33
34 /* video mode */
35 static char *viafb_mode;
36 static char *viafb_mode1;
37 static int viafb_bpp = 32;
38 static int viafb_bpp1 = 32;
39
40 static unsigned int viafb_second_offset;
41 static int viafb_second_size;
42
43 static int viafb_accel = 1;
44
45 /* Added for specifying active devices.*/
46 char *viafb_active_dev;
47
48 /*Added for specify lcd output port*/
49 char *viafb_lcd_port = "";
50 char *viafb_dvi_port = "";
51
52 static void viafb_set_device(struct device_t active_dev);
53 static int apply_device_setting(struct viafb_ioctl_setting setting_info,
54 struct fb_info *info);
55 static void apply_second_mode_setting(struct fb_var_screeninfo
56 *sec_var);
57 static void retrieve_device_setting(struct viafb_ioctl_setting
58 *setting_info);
59 static int viafb_pan_display(struct fb_var_screeninfo *var,
60 struct fb_info *info);
61
62 static struct fb_ops viafb_ops;
63
64
65 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
66 {
67 var->grayscale = 0;
68 var->red.msb_right = 0;
69 var->green.msb_right = 0;
70 var->blue.msb_right = 0;
71 var->transp.offset = 0;
72 var->transp.length = 0;
73 var->transp.msb_right = 0;
74 var->nonstd = 0;
75 switch (depth) {
76 case 8:
77 var->bits_per_pixel = 8;
78 var->red.offset = 0;
79 var->green.offset = 0;
80 var->blue.offset = 0;
81 var->red.length = 8;
82 var->green.length = 8;
83 var->blue.length = 8;
84 break;
85 case 15:
86 var->bits_per_pixel = 16;
87 var->red.offset = 10;
88 var->green.offset = 5;
89 var->blue.offset = 0;
90 var->red.length = 5;
91 var->green.length = 5;
92 var->blue.length = 5;
93 break;
94 case 16:
95 var->bits_per_pixel = 16;
96 var->red.offset = 11;
97 var->green.offset = 5;
98 var->blue.offset = 0;
99 var->red.length = 5;
100 var->green.length = 6;
101 var->blue.length = 5;
102 break;
103 case 24:
104 var->bits_per_pixel = 32;
105 var->red.offset = 16;
106 var->green.offset = 8;
107 var->blue.offset = 0;
108 var->red.length = 8;
109 var->green.length = 8;
110 var->blue.length = 8;
111 break;
112 case 30:
113 var->bits_per_pixel = 32;
114 var->red.offset = 20;
115 var->green.offset = 10;
116 var->blue.offset = 0;
117 var->red.length = 10;
118 var->green.length = 10;
119 var->blue.length = 10;
120 break;
121 }
122 }
123
124 static void viafb_update_fix(struct fb_info *info)
125 {
126 u32 bpp = info->var.bits_per_pixel;
127
128 info->fix.visual =
129 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
130 info->fix.line_length = (info->var.xres_virtual * bpp / 8 + 7) & ~7;
131 }
132
133 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
134 struct viafb_par *viaparinfo)
135 {
136 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
137 strcpy(fix->id, viafb_name);
138
139 fix->smem_start = viaparinfo->fbmem;
140 fix->smem_len = viaparinfo->fbmem_free;
141
142 fix->type = FB_TYPE_PACKED_PIXELS;
143 fix->type_aux = 0;
144 fix->visual = FB_VISUAL_TRUECOLOR;
145
146 fix->xpanstep = fix->ywrapstep = 0;
147 fix->ypanstep = 1;
148
149 /* Just tell the accel name */
150 viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
151 }
152 static int viafb_open(struct fb_info *info, int user)
153 {
154 DEBUG_MSG(KERN_INFO "viafb_open!\n");
155 return 0;
156 }
157
158 static int viafb_release(struct fb_info *info, int user)
159 {
160 DEBUG_MSG(KERN_INFO "viafb_release!\n");
161 return 0;
162 }
163
164 static int viafb_check_var(struct fb_var_screeninfo *var,
165 struct fb_info *info)
166 {
167 int htotal, vtotal, depth;
168 struct VideoModeTable *vmode_entry;
169 struct viafb_par *ppar = info->par;
170 u32 long_refresh, line;
171
172 DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
173 /* Sanity check */
174 /* HW neither support interlacte nor double-scaned mode */
175 if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
176 return -EINVAL;
177
178 vmode_entry = viafb_get_mode(var->xres, var->yres);
179 if (!vmode_entry) {
180 DEBUG_MSG(KERN_INFO
181 "viafb: Mode %dx%dx%d not supported!!\n",
182 var->xres, var->yres, var->bits_per_pixel);
183 return -EINVAL;
184 }
185
186 depth = fb_get_color_depth(var, &info->fix);
187 if (!depth)
188 depth = var->bits_per_pixel;
189
190 if (depth < 0 || depth > 32)
191 return -EINVAL;
192 else if (!depth)
193 depth = 24;
194 else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
195 depth = 15;
196 else if (depth == 30)
197 depth = 30;
198 else if (depth <= 8)
199 depth = 8;
200 else if (depth <= 16)
201 depth = 16;
202 else
203 depth = 24;
204
205 viafb_fill_var_color_info(var, depth);
206 line = (var->xres_virtual * var->bits_per_pixel / 8 + 7) & ~7;
207 if (line * var->yres_virtual > ppar->memsize)
208 return -EINVAL;
209
210 /* Based on var passed in to calculate the refresh,
211 * because our driver use some modes special.
212 */
213 htotal = var->xres + var->left_margin +
214 var->right_margin + var->hsync_len;
215 vtotal = var->yres + var->upper_margin +
216 var->lower_margin + var->vsync_len;
217 long_refresh = 1000000000UL / var->pixclock * 1000;
218 long_refresh /= (htotal * vtotal);
219
220 viafb_refresh = viafb_get_refresh(var->xres, var->yres, long_refresh);
221
222 /* Adjust var according to our driver's own table */
223 viafb_fill_var_timing_info(var, viafb_refresh, vmode_entry);
224 if (info->var.accel_flags & FB_ACCELF_TEXT &&
225 !ppar->shared->vdev->engine_mmio)
226 info->var.accel_flags = 0;
227
228 return 0;
229 }
230
231 static int viafb_set_par(struct fb_info *info)
232 {
233 struct viafb_par *viapar = info->par;
234 struct VideoModeTable *vmode_entry, *vmode_entry1 = NULL;
235 DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
236
237 viapar->depth = fb_get_color_depth(&info->var, &info->fix);
238 viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
239 viafbinfo->var.bits_per_pixel, viafb_refresh, 0);
240
241 vmode_entry = viafb_get_mode(viafbinfo->var.xres, viafbinfo->var.yres);
242 if (viafb_dual_fb) {
243 vmode_entry1 = viafb_get_mode(viafbinfo1->var.xres,
244 viafbinfo1->var.yres);
245 viafb_update_device_setting(viafbinfo1->var.xres,
246 viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
247 viafb_refresh1, 1);
248 } else if (viafb_SAMM_ON == 1) {
249 DEBUG_MSG(KERN_INFO
250 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
251 viafb_second_xres, viafb_second_yres, viafb_bpp1);
252 vmode_entry1 = viafb_get_mode(viafb_second_xres,
253 viafb_second_yres);
254
255 viafb_update_device_setting(viafb_second_xres,
256 viafb_second_yres, viafb_bpp1, viafb_refresh1, 1);
257 }
258
259 if (vmode_entry) {
260 viafb_update_fix(info);
261 if (viafb_dual_fb && viapar->iga_path == IGA2)
262 viafb_bpp1 = info->var.bits_per_pixel;
263 else
264 viafb_bpp = info->var.bits_per_pixel;
265
266 if (info->var.accel_flags & FB_ACCELF_TEXT)
267 info->flags &= ~FBINFO_HWACCEL_DISABLED;
268 else
269 info->flags |= FBINFO_HWACCEL_DISABLED;
270 viafb_setmode(vmode_entry, info->var.bits_per_pixel,
271 vmode_entry1, viafb_bpp1);
272 viafb_pan_display(&info->var, info);
273 }
274
275 return 0;
276 }
277
278 /* Set one color register */
279 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
280 unsigned blue, unsigned transp, struct fb_info *info)
281 {
282 struct viafb_par *viapar = info->par;
283 u32 r, g, b;
284
285 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
286 if (regno > 255)
287 return -EINVAL;
288
289 if (!viafb_dual_fb || viapar->iga_path == IGA1)
290 viafb_set_primary_color_register(regno, red >> 8,
291 green >> 8, blue >> 8);
292
293 if (!viafb_dual_fb || viapar->iga_path == IGA2)
294 viafb_set_secondary_color_register(regno, red >> 8,
295 green >> 8, blue >> 8);
296 } else {
297 if (regno > 15)
298 return -EINVAL;
299
300 r = (red >> (16 - info->var.red.length))
301 << info->var.red.offset;
302 b = (blue >> (16 - info->var.blue.length))
303 << info->var.blue.offset;
304 g = (green >> (16 - info->var.green.length))
305 << info->var.green.offset;
306 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
307 }
308
309 return 0;
310 }
311
312 static int viafb_pan_display(struct fb_var_screeninfo *var,
313 struct fb_info *info)
314 {
315 struct viafb_par *viapar = info->par;
316 u32 vram_addr = (var->yoffset * var->xres_virtual + var->xoffset)
317 * (var->bits_per_pixel / 8) + viapar->vram_addr;
318
319 DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
320 if (!viafb_dual_fb) {
321 via_set_primary_address(vram_addr);
322 via_set_secondary_address(vram_addr);
323 } else if (viapar->iga_path == IGA1)
324 via_set_primary_address(vram_addr);
325 else
326 via_set_secondary_address(vram_addr);
327
328 return 0;
329 }
330
331 static int viafb_blank(int blank_mode, struct fb_info *info)
332 {
333 DEBUG_MSG(KERN_INFO "viafb_blank!\n");
334 /* clear DPMS setting */
335
336 switch (blank_mode) {
337 case FB_BLANK_UNBLANK:
338 /* Screen: On, HSync: On, VSync: On */
339 /* control CRT monitor power management */
340 viafb_write_reg_mask(CR36, VIACR, 0x00, BIT4 + BIT5);
341 break;
342 case FB_BLANK_HSYNC_SUSPEND:
343 /* Screen: Off, HSync: Off, VSync: On */
344 /* control CRT monitor power management */
345 viafb_write_reg_mask(CR36, VIACR, 0x10, BIT4 + BIT5);
346 break;
347 case FB_BLANK_VSYNC_SUSPEND:
348 /* Screen: Off, HSync: On, VSync: Off */
349 /* control CRT monitor power management */
350 viafb_write_reg_mask(CR36, VIACR, 0x20, BIT4 + BIT5);
351 break;
352 case FB_BLANK_POWERDOWN:
353 /* Screen: Off, HSync: Off, VSync: Off */
354 /* control CRT monitor power management */
355 viafb_write_reg_mask(CR36, VIACR, 0x30, BIT4 + BIT5);
356 break;
357 }
358
359 return 0;
360 }
361
362 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
363 {
364 union {
365 struct viafb_ioctl_mode viamode;
366 struct viafb_ioctl_samm viasamm;
367 struct viafb_driver_version driver_version;
368 struct fb_var_screeninfo sec_var;
369 struct _panel_size_pos_info panel_pos_size_para;
370 struct viafb_ioctl_setting viafb_setting;
371 struct device_t active_dev;
372 } u;
373 u32 state_info = 0;
374 u32 *viafb_gamma_table;
375 char driver_name[] = "viafb";
376
377 u32 __user *argp = (u32 __user *) arg;
378 u32 gpu32;
379
380 DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
381 printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
382 memset(&u, 0, sizeof(u));
383
384 switch (cmd) {
385 case VIAFB_GET_CHIP_INFO:
386 if (copy_to_user(argp, viaparinfo->chip_info,
387 sizeof(struct chip_information)))
388 return -EFAULT;
389 break;
390 case VIAFB_GET_INFO_SIZE:
391 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
392 case VIAFB_GET_INFO:
393 return viafb_ioctl_get_viafb_info(arg);
394 case VIAFB_HOTPLUG:
395 return put_user(viafb_ioctl_hotplug(info->var.xres,
396 info->var.yres,
397 info->var.bits_per_pixel), argp);
398 case VIAFB_SET_HOTPLUG_FLAG:
399 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
400 return -EFAULT;
401 viafb_hotplug = (gpu32) ? 1 : 0;
402 break;
403 case VIAFB_GET_RESOLUTION:
404 u.viamode.xres = (u32) viafb_hotplug_Xres;
405 u.viamode.yres = (u32) viafb_hotplug_Yres;
406 u.viamode.refresh = (u32) viafb_hotplug_refresh;
407 u.viamode.bpp = (u32) viafb_hotplug_bpp;
408 if (viafb_SAMM_ON == 1) {
409 u.viamode.xres_sec = viafb_second_xres;
410 u.viamode.yres_sec = viafb_second_yres;
411 u.viamode.virtual_xres_sec = viafb_second_virtual_xres;
412 u.viamode.virtual_yres_sec = viafb_second_virtual_yres;
413 u.viamode.refresh_sec = viafb_refresh1;
414 u.viamode.bpp_sec = viafb_bpp1;
415 } else {
416 u.viamode.xres_sec = 0;
417 u.viamode.yres_sec = 0;
418 u.viamode.virtual_xres_sec = 0;
419 u.viamode.virtual_yres_sec = 0;
420 u.viamode.refresh_sec = 0;
421 u.viamode.bpp_sec = 0;
422 }
423 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
424 return -EFAULT;
425 break;
426 case VIAFB_GET_SAMM_INFO:
427 u.viasamm.samm_status = viafb_SAMM_ON;
428
429 if (viafb_SAMM_ON == 1) {
430 if (viafb_dual_fb) {
431 u.viasamm.size_prim = viaparinfo->fbmem_free;
432 u.viasamm.size_sec = viaparinfo1->fbmem_free;
433 } else {
434 if (viafb_second_size) {
435 u.viasamm.size_prim =
436 viaparinfo->fbmem_free -
437 viafb_second_size * 1024 * 1024;
438 u.viasamm.size_sec =
439 viafb_second_size * 1024 * 1024;
440 } else {
441 u.viasamm.size_prim =
442 viaparinfo->fbmem_free >> 1;
443 u.viasamm.size_sec =
444 (viaparinfo->fbmem_free >> 1);
445 }
446 }
447 u.viasamm.mem_base = viaparinfo->fbmem;
448 u.viasamm.offset_sec = viafb_second_offset;
449 } else {
450 u.viasamm.size_prim =
451 viaparinfo->memsize - viaparinfo->fbmem_used;
452 u.viasamm.size_sec = 0;
453 u.viasamm.mem_base = viaparinfo->fbmem;
454 u.viasamm.offset_sec = 0;
455 }
456
457 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
458 return -EFAULT;
459
460 break;
461 case VIAFB_TURN_ON_OUTPUT_DEVICE:
462 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
463 return -EFAULT;
464 if (gpu32 & CRT_Device)
465 viafb_crt_enable();
466 if (gpu32 & DVI_Device)
467 viafb_dvi_enable();
468 if (gpu32 & LCD_Device)
469 viafb_lcd_enable();
470 break;
471 case VIAFB_TURN_OFF_OUTPUT_DEVICE:
472 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
473 return -EFAULT;
474 if (gpu32 & CRT_Device)
475 viafb_crt_disable();
476 if (gpu32 & DVI_Device)
477 viafb_dvi_disable();
478 if (gpu32 & LCD_Device)
479 viafb_lcd_disable();
480 break;
481 case VIAFB_SET_DEVICE:
482 if (copy_from_user(&u.active_dev, (void *)argp,
483 sizeof(u.active_dev)))
484 return -EFAULT;
485 viafb_set_device(u.active_dev);
486 viafb_set_par(info);
487 break;
488 case VIAFB_GET_DEVICE:
489 u.active_dev.crt = viafb_CRT_ON;
490 u.active_dev.dvi = viafb_DVI_ON;
491 u.active_dev.lcd = viafb_LCD_ON;
492 u.active_dev.samm = viafb_SAMM_ON;
493 u.active_dev.primary_dev = viafb_primary_dev;
494
495 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
496 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
497 u.active_dev.lcd_mode = viafb_lcd_mode;
498
499 u.active_dev.xres = viafb_hotplug_Xres;
500 u.active_dev.yres = viafb_hotplug_Yres;
501
502 u.active_dev.xres1 = viafb_second_xres;
503 u.active_dev.yres1 = viafb_second_yres;
504
505 u.active_dev.bpp = viafb_bpp;
506 u.active_dev.bpp1 = viafb_bpp1;
507 u.active_dev.refresh = viafb_refresh;
508 u.active_dev.refresh1 = viafb_refresh1;
509
510 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
511 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
512 u.active_dev.bus_width = viafb_bus_width;
513
514 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
515 return -EFAULT;
516 break;
517
518 case VIAFB_GET_DRIVER_VERSION:
519 u.driver_version.iMajorNum = VERSION_MAJOR;
520 u.driver_version.iKernelNum = VERSION_KERNEL;
521 u.driver_version.iOSNum = VERSION_OS;
522 u.driver_version.iMinorNum = VERSION_MINOR;
523
524 if (copy_to_user(argp, &u.driver_version,
525 sizeof(u.driver_version)))
526 return -EFAULT;
527
528 break;
529
530 case VIAFB_SET_DEVICE_INFO:
531 if (copy_from_user(&u.viafb_setting,
532 argp, sizeof(u.viafb_setting)))
533 return -EFAULT;
534 if (apply_device_setting(u.viafb_setting, info) < 0)
535 return -EINVAL;
536
537 break;
538
539 case VIAFB_SET_SECOND_MODE:
540 if (copy_from_user(&u.sec_var, argp, sizeof(u.sec_var)))
541 return -EFAULT;
542 apply_second_mode_setting(&u.sec_var);
543 break;
544
545 case VIAFB_GET_DEVICE_INFO:
546
547 retrieve_device_setting(&u.viafb_setting);
548
549 if (copy_to_user(argp, &u.viafb_setting,
550 sizeof(u.viafb_setting)))
551 return -EFAULT;
552
553 break;
554
555 case VIAFB_GET_DEVICE_SUPPORT:
556 viafb_get_device_support_state(&state_info);
557 if (put_user(state_info, argp))
558 return -EFAULT;
559 break;
560
561 case VIAFB_GET_DEVICE_CONNECT:
562 viafb_get_device_connect_state(&state_info);
563 if (put_user(state_info, argp))
564 return -EFAULT;
565 break;
566
567 case VIAFB_GET_PANEL_SUPPORT_EXPAND:
568 state_info =
569 viafb_lcd_get_support_expand_state(info->var.xres,
570 info->var.yres);
571 if (put_user(state_info, argp))
572 return -EFAULT;
573 break;
574
575 case VIAFB_GET_DRIVER_NAME:
576 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
577 return -EFAULT;
578 break;
579
580 case VIAFB_SET_GAMMA_LUT:
581 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
582 if (IS_ERR(viafb_gamma_table))
583 return PTR_ERR(viafb_gamma_table);
584 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
585 kfree(viafb_gamma_table);
586 break;
587
588 case VIAFB_GET_GAMMA_LUT:
589 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
590 if (!viafb_gamma_table)
591 return -ENOMEM;
592 viafb_get_gamma_table(viafb_gamma_table);
593 if (copy_to_user(argp, viafb_gamma_table,
594 256 * sizeof(u32))) {
595 kfree(viafb_gamma_table);
596 return -EFAULT;
597 }
598 kfree(viafb_gamma_table);
599 break;
600
601 case VIAFB_GET_GAMMA_SUPPORT_STATE:
602 viafb_get_gamma_support_state(viafb_bpp, &state_info);
603 if (put_user(state_info, argp))
604 return -EFAULT;
605 break;
606 case VIAFB_SYNC_SURFACE:
607 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
608 break;
609 case VIAFB_GET_DRIVER_CAPS:
610 break;
611
612 case VIAFB_GET_PANEL_MAX_SIZE:
613 if (copy_from_user(&u.panel_pos_size_para, argp,
614 sizeof(u.panel_pos_size_para)))
615 return -EFAULT;
616 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
617 if (copy_to_user(argp, &u.panel_pos_size_para,
618 sizeof(u.panel_pos_size_para)))
619 return -EFAULT;
620 break;
621 case VIAFB_GET_PANEL_MAX_POSITION:
622 if (copy_from_user(&u.panel_pos_size_para, argp,
623 sizeof(u.panel_pos_size_para)))
624 return -EFAULT;
625 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
626 if (copy_to_user(argp, &u.panel_pos_size_para,
627 sizeof(u.panel_pos_size_para)))
628 return -EFAULT;
629 break;
630
631 case VIAFB_GET_PANEL_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 case VIAFB_GET_PANEL_SIZE:
641 if (copy_from_user(&u.panel_pos_size_para, argp,
642 sizeof(u.panel_pos_size_para)))
643 return -EFAULT;
644 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
645 if (copy_to_user(argp, &u.panel_pos_size_para,
646 sizeof(u.panel_pos_size_para)))
647 return -EFAULT;
648 break;
649
650 case VIAFB_SET_PANEL_POSITION:
651 if (copy_from_user(&u.panel_pos_size_para, argp,
652 sizeof(u.panel_pos_size_para)))
653 return -EFAULT;
654 break;
655 case VIAFB_SET_PANEL_SIZE:
656 if (copy_from_user(&u.panel_pos_size_para, argp,
657 sizeof(u.panel_pos_size_para)))
658 return -EFAULT;
659 break;
660
661 default:
662 return -EINVAL;
663 }
664
665 return 0;
666 }
667
668 static void viafb_fillrect(struct fb_info *info,
669 const struct fb_fillrect *rect)
670 {
671 struct viafb_par *viapar = info->par;
672 struct viafb_shared *shared = viapar->shared;
673 u32 fg_color;
674 u8 rop;
675
676 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
677 cfb_fillrect(info, rect);
678 return;
679 }
680
681 if (!rect->width || !rect->height)
682 return;
683
684 if (info->fix.visual == FB_VISUAL_TRUECOLOR)
685 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
686 else
687 fg_color = rect->color;
688
689 if (rect->rop == ROP_XOR)
690 rop = 0x5A;
691 else
692 rop = 0xF0;
693
694 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
695 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
696 rect->width, rect->height, info->var.bits_per_pixel,
697 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
698 NULL, 0, 0, 0, 0, fg_color, 0, rop))
699 cfb_fillrect(info, rect);
700 }
701
702 static void viafb_copyarea(struct fb_info *info,
703 const struct fb_copyarea *area)
704 {
705 struct viafb_par *viapar = info->par;
706 struct viafb_shared *shared = viapar->shared;
707
708 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
709 cfb_copyarea(info, area);
710 return;
711 }
712
713 if (!area->width || !area->height)
714 return;
715
716 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
717 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
718 area->width, area->height, info->var.bits_per_pixel,
719 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
720 NULL, viapar->vram_addr, info->fix.line_length,
721 area->sx, area->sy, 0, 0, 0))
722 cfb_copyarea(info, area);
723 }
724
725 static void viafb_imageblit(struct fb_info *info,
726 const struct fb_image *image)
727 {
728 struct viafb_par *viapar = info->par;
729 struct viafb_shared *shared = viapar->shared;
730 u32 fg_color = 0, bg_color = 0;
731 u8 op;
732
733 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
734 (image->depth != 1 && image->depth != viapar->depth)) {
735 cfb_imageblit(info, image);
736 return;
737 }
738
739 if (image->depth == 1) {
740 op = VIA_BITBLT_MONO;
741 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
742 fg_color =
743 ((u32 *)info->pseudo_palette)[image->fg_color];
744 bg_color =
745 ((u32 *)info->pseudo_palette)[image->bg_color];
746 } else {
747 fg_color = image->fg_color;
748 bg_color = image->bg_color;
749 }
750 } else
751 op = VIA_BITBLT_COLOR;
752
753 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
754 if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
755 image->width, image->height, info->var.bits_per_pixel,
756 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
757 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
758 cfb_imageblit(info, image);
759 }
760
761 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
762 {
763 struct viafb_par *viapar = info->par;
764 void __iomem *engine = viapar->shared->vdev->engine_mmio;
765 u32 temp, xx, yy, bg_color = 0, fg_color = 0,
766 chip_name = viapar->shared->chip_info.gfx_chip_name;
767 int i, j = 0, cur_size = 64;
768
769 if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
770 return -ENODEV;
771
772 /* LCD ouput does not support hw cursors (at least on VN896) */
773 if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
774 viafb_LCD_ON)
775 return -ENODEV;
776
777 viafb_show_hw_cursor(info, HW_Cursor_OFF);
778
779 if (cursor->set & FB_CUR_SETHOT) {
780 temp = (cursor->hot.x << 16) + cursor->hot.y;
781 writel(temp, engine + VIA_REG_CURSOR_ORG);
782 }
783
784 if (cursor->set & FB_CUR_SETPOS) {
785 yy = cursor->image.dy - info->var.yoffset;
786 xx = cursor->image.dx - info->var.xoffset;
787 temp = yy & 0xFFFF;
788 temp |= (xx << 16);
789 writel(temp, engine + VIA_REG_CURSOR_POS);
790 }
791
792 if (cursor->image.width <= 32 && cursor->image.height <= 32)
793 cur_size = 32;
794 else if (cursor->image.width <= 64 && cursor->image.height <= 64)
795 cur_size = 64;
796 else {
797 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
798 "%dx%d", cursor->image.width, cursor->image.height);
799 return -ENXIO;
800 }
801
802 if (cursor->set & FB_CUR_SETSIZE) {
803 temp = readl(engine + VIA_REG_CURSOR_MODE);
804 if (cur_size == 32)
805 temp |= 0x2;
806 else
807 temp &= ~0x2;
808
809 writel(temp, engine + VIA_REG_CURSOR_MODE);
810 }
811
812 if (cursor->set & FB_CUR_SETCMAP) {
813 fg_color = cursor->image.fg_color;
814 bg_color = cursor->image.bg_color;
815 if (chip_name == UNICHROME_CX700 ||
816 chip_name == UNICHROME_VX800 ||
817 chip_name == UNICHROME_VX855) {
818 fg_color =
819 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
820 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
821 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
822 bg_color =
823 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
824 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
825 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
826 } else {
827 fg_color =
828 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
829 (info->cmap.green[fg_color] & 0xFF00) |
830 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
831 bg_color =
832 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
833 (info->cmap.green[bg_color] & 0xFF00) |
834 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
835 }
836
837 writel(bg_color, engine + VIA_REG_CURSOR_BG);
838 writel(fg_color, engine + VIA_REG_CURSOR_FG);
839 }
840
841 if (cursor->set & FB_CUR_SETSHAPE) {
842 struct {
843 u8 data[CURSOR_SIZE];
844 u32 bak[CURSOR_SIZE / 4];
845 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
846 int size = ((cursor->image.width + 7) >> 3) *
847 cursor->image.height;
848
849 if (!cr_data)
850 return -ENOMEM;
851
852 if (cur_size == 32) {
853 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
854 cr_data->bak[i] = 0x0;
855 cr_data->bak[i + 1] = 0xFFFFFFFF;
856 i += 1;
857 }
858 } else {
859 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
860 cr_data->bak[i] = 0x0;
861 cr_data->bak[i + 1] = 0x0;
862 cr_data->bak[i + 2] = 0xFFFFFFFF;
863 cr_data->bak[i + 3] = 0xFFFFFFFF;
864 i += 3;
865 }
866 }
867
868 switch (cursor->rop) {
869 case ROP_XOR:
870 for (i = 0; i < size; i++)
871 cr_data->data[i] = cursor->mask[i];
872 break;
873 case ROP_COPY:
874
875 for (i = 0; i < size; i++)
876 cr_data->data[i] = cursor->mask[i];
877 break;
878 default:
879 break;
880 }
881
882 if (cur_size == 32) {
883 for (i = 0; i < size; i++) {
884 cr_data->bak[j] = (u32) cr_data->data[i];
885 cr_data->bak[j + 1] = ~cr_data->bak[j];
886 j += 2;
887 }
888 } else {
889 for (i = 0; i < size; i++) {
890 cr_data->bak[j] = (u32) cr_data->data[i];
891 cr_data->bak[j + 1] = 0x0;
892 cr_data->bak[j + 2] = ~cr_data->bak[j];
893 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
894 j += 4;
895 }
896 }
897
898 memcpy_toio(viafbinfo->screen_base + viapar->shared->
899 cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
900 kfree(cr_data);
901 }
902
903 if (cursor->enable)
904 viafb_show_hw_cursor(info, HW_Cursor_ON);
905
906 return 0;
907 }
908
909 static int viafb_sync(struct fb_info *info)
910 {
911 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
912 viafb_wait_engine_idle(info);
913 return 0;
914 }
915
916 static void check_available_device_to_enable(int device_id)
917 {
918 int device_num = 0;
919
920 /* Initialize: */
921 viafb_CRT_ON = STATE_OFF;
922 viafb_DVI_ON = STATE_OFF;
923 viafb_LCD_ON = STATE_OFF;
924 viafb_LCD2_ON = STATE_OFF;
925 viafb_DeviceStatus = None_Device;
926
927 if ((device_id & CRT_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
928 viafb_CRT_ON = STATE_ON;
929 device_num++;
930 viafb_DeviceStatus |= CRT_Device;
931 }
932
933 if ((device_id & DVI_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
934 viafb_DVI_ON = STATE_ON;
935 device_num++;
936 viafb_DeviceStatus |= DVI_Device;
937 }
938
939 if ((device_id & LCD_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
940 viafb_LCD_ON = STATE_ON;
941 device_num++;
942 viafb_DeviceStatus |= LCD_Device;
943 }
944
945 if ((device_id & LCD2_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
946 viafb_LCD2_ON = STATE_ON;
947 device_num++;
948 viafb_DeviceStatus |= LCD2_Device;
949 }
950
951 if (viafb_DeviceStatus == None_Device) {
952 /* Use CRT as default active device: */
953 viafb_CRT_ON = STATE_ON;
954 viafb_DeviceStatus = CRT_Device;
955 }
956 DEBUG_MSG(KERN_INFO "Device Status:%x", viafb_DeviceStatus);
957 }
958
959 static void viafb_set_device(struct device_t active_dev)
960 {
961 /* Check available device to enable: */
962 int device_id = None_Device;
963 if (active_dev.crt)
964 device_id |= CRT_Device;
965 if (active_dev.dvi)
966 device_id |= DVI_Device;
967 if (active_dev.lcd)
968 device_id |= LCD_Device;
969
970 check_available_device_to_enable(device_id);
971
972 /* Check property of LCD: */
973 if (viafb_LCD_ON) {
974 if (active_dev.lcd_dsp_cent) {
975 viaparinfo->lvds_setting_info->display_method =
976 viafb_lcd_dsp_method = LCD_CENTERING;
977 } else {
978 viaparinfo->lvds_setting_info->display_method =
979 viafb_lcd_dsp_method = LCD_EXPANDSION;
980 }
981
982 if (active_dev.lcd_mode == LCD_SPWG) {
983 viaparinfo->lvds_setting_info->lcd_mode =
984 viafb_lcd_mode = LCD_SPWG;
985 } else {
986 viaparinfo->lvds_setting_info->lcd_mode =
987 viafb_lcd_mode = LCD_OPENLDI;
988 }
989
990 if (active_dev.lcd_panel_id <= LCD_PANEL_ID_MAXIMUM) {
991 viafb_lcd_panel_id = active_dev.lcd_panel_id;
992 viafb_init_lcd_size();
993 }
994 }
995
996 /* Check property of mode: */
997 if (!active_dev.xres1)
998 viafb_second_xres = 640;
999 else
1000 viafb_second_xres = active_dev.xres1;
1001 if (!active_dev.yres1)
1002 viafb_second_yres = 480;
1003 else
1004 viafb_second_yres = active_dev.yres1;
1005 if (active_dev.bpp != 0)
1006 viafb_bpp = active_dev.bpp;
1007 if (active_dev.bpp1 != 0)
1008 viafb_bpp1 = active_dev.bpp1;
1009 if (active_dev.refresh != 0)
1010 viafb_refresh = active_dev.refresh;
1011 if (active_dev.refresh1 != 0)
1012 viafb_refresh1 = active_dev.refresh1;
1013 if ((active_dev.samm == STATE_OFF) || (active_dev.samm == STATE_ON))
1014 viafb_SAMM_ON = active_dev.samm;
1015 viafb_primary_dev = active_dev.primary_dev;
1016
1017 via_set_primary_address(0);
1018 via_set_secondary_address(viafb_SAMM_ON ? viafb_second_offset : 0);
1019 viafb_set_iga_path();
1020 }
1021
1022 static int get_primary_device(void)
1023 {
1024 int primary_device = 0;
1025 /* Rule: device on iga1 path are the primary device. */
1026 if (viafb_SAMM_ON) {
1027 if (viafb_CRT_ON) {
1028 if (viaparinfo->crt_setting_info->iga_path == IGA1) {
1029 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n",
1030 viaparinfo->
1031 crt_setting_info->iga_path);
1032 primary_device = CRT_Device;
1033 }
1034 }
1035 if (viafb_DVI_ON) {
1036 if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
1037 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
1038 viaparinfo->
1039 tmds_setting_info->iga_path);
1040 primary_device = DVI_Device;
1041 }
1042 }
1043 if (viafb_LCD_ON) {
1044 if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
1045 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
1046 viaparinfo->
1047 lvds_setting_info->iga_path);
1048 primary_device = LCD_Device;
1049 }
1050 }
1051 if (viafb_LCD2_ON) {
1052 if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
1053 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
1054 viaparinfo->
1055 lvds_setting_info2->iga_path);
1056 primary_device = LCD2_Device;
1057 }
1058 }
1059 }
1060 return primary_device;
1061 }
1062
1063 static void apply_second_mode_setting(struct fb_var_screeninfo
1064 *sec_var)
1065 {
1066 u32 htotal, vtotal, long_refresh;
1067
1068 htotal = sec_var->xres + sec_var->left_margin +
1069 sec_var->right_margin + sec_var->hsync_len;
1070 vtotal = sec_var->yres + sec_var->upper_margin +
1071 sec_var->lower_margin + sec_var->vsync_len;
1072 if ((sec_var->xres_virtual * (sec_var->bits_per_pixel >> 3)) & 0x1F) {
1073 /*Is 32 bytes alignment? */
1074 /*32 pixel alignment */
1075 sec_var->xres_virtual = (sec_var->xres_virtual + 31) & ~31;
1076 }
1077
1078 htotal = sec_var->xres + sec_var->left_margin +
1079 sec_var->right_margin + sec_var->hsync_len;
1080 vtotal = sec_var->yres + sec_var->upper_margin +
1081 sec_var->lower_margin + sec_var->vsync_len;
1082 long_refresh = 1000000000UL / sec_var->pixclock * 1000;
1083 long_refresh /= (htotal * vtotal);
1084
1085 viafb_second_xres = sec_var->xres;
1086 viafb_second_yres = sec_var->yres;
1087 viafb_second_virtual_xres = sec_var->xres_virtual;
1088 viafb_second_virtual_yres = sec_var->yres_virtual;
1089 viafb_bpp1 = sec_var->bits_per_pixel;
1090 viafb_refresh1 = viafb_get_refresh(sec_var->xres, sec_var->yres,
1091 long_refresh);
1092 }
1093
1094 static int apply_device_setting(struct viafb_ioctl_setting setting_info,
1095 struct fb_info *info)
1096 {
1097 int need_set_mode = 0;
1098 DEBUG_MSG(KERN_INFO "apply_device_setting\n");
1099
1100 if (setting_info.device_flag) {
1101 need_set_mode = 1;
1102 check_available_device_to_enable(setting_info.device_status);
1103 }
1104
1105 /* Unlock LCD's operation according to LCD flag
1106 and check if the setting value is valid. */
1107 /* If the value is valid, apply the new setting value to the device. */
1108 if (viafb_LCD_ON) {
1109 if (setting_info.lcd_operation_flag & OP_LCD_CENTERING) {
1110 need_set_mode = 1;
1111 if (setting_info.lcd_attributes.display_center) {
1112 /* Centering */
1113 viaparinfo->lvds_setting_info->display_method =
1114 LCD_CENTERING;
1115 viafb_lcd_dsp_method = LCD_CENTERING;
1116 viaparinfo->lvds_setting_info2->display_method =
1117 viafb_lcd_dsp_method = LCD_CENTERING;
1118 } else {
1119 /* expandsion */
1120 viaparinfo->lvds_setting_info->display_method =
1121 LCD_EXPANDSION;
1122 viafb_lcd_dsp_method = LCD_EXPANDSION;
1123 viaparinfo->lvds_setting_info2->display_method =
1124 LCD_EXPANDSION;
1125 viafb_lcd_dsp_method = LCD_EXPANDSION;
1126 }
1127 }
1128
1129 if (setting_info.lcd_operation_flag & OP_LCD_MODE) {
1130 need_set_mode = 1;
1131 if (setting_info.lcd_attributes.lcd_mode ==
1132 LCD_SPWG) {
1133 viaparinfo->lvds_setting_info->lcd_mode =
1134 viafb_lcd_mode = LCD_SPWG;
1135 } else {
1136 viaparinfo->lvds_setting_info->lcd_mode =
1137 viafb_lcd_mode = LCD_OPENLDI;
1138 }
1139 viaparinfo->lvds_setting_info2->lcd_mode =
1140 viaparinfo->lvds_setting_info->lcd_mode;
1141 }
1142
1143 if (setting_info.lcd_operation_flag & OP_LCD_PANEL_ID) {
1144 need_set_mode = 1;
1145 if (setting_info.lcd_attributes.panel_id <=
1146 LCD_PANEL_ID_MAXIMUM) {
1147 viafb_lcd_panel_id =
1148 setting_info.lcd_attributes.panel_id;
1149 viafb_init_lcd_size();
1150 }
1151 }
1152 }
1153
1154 if (0 != (setting_info.samm_status & OP_SAMM)) {
1155 setting_info.samm_status =
1156 setting_info.samm_status & (~OP_SAMM);
1157 if (setting_info.samm_status == 0
1158 || setting_info.samm_status == 1) {
1159 viafb_SAMM_ON = setting_info.samm_status;
1160
1161 if (viafb_SAMM_ON)
1162 viafb_primary_dev = setting_info.primary_device;
1163
1164 via_set_primary_address(0);
1165 via_set_secondary_address(viafb_SAMM_ON ?
1166 viafb_second_offset : 0);
1167 viafb_set_iga_path();
1168 }
1169 need_set_mode = 1;
1170 }
1171
1172 if (!need_set_mode) {
1173 ;
1174 } else {
1175 viafb_set_iga_path();
1176 viafb_set_par(info);
1177 }
1178 return true;
1179 }
1180
1181 static void retrieve_device_setting(struct viafb_ioctl_setting
1182 *setting_info)
1183 {
1184
1185 /* get device status */
1186 if (viafb_CRT_ON == 1)
1187 setting_info->device_status = CRT_Device;
1188 if (viafb_DVI_ON == 1)
1189 setting_info->device_status |= DVI_Device;
1190 if (viafb_LCD_ON == 1)
1191 setting_info->device_status |= LCD_Device;
1192 if (viafb_LCD2_ON == 1)
1193 setting_info->device_status |= LCD2_Device;
1194
1195 setting_info->samm_status = viafb_SAMM_ON;
1196 setting_info->primary_device = get_primary_device();
1197
1198 setting_info->first_dev_bpp = viafb_bpp;
1199 setting_info->second_dev_bpp = viafb_bpp1;
1200
1201 setting_info->first_dev_refresh = viafb_refresh;
1202 setting_info->second_dev_refresh = viafb_refresh1;
1203
1204 setting_info->first_dev_hor_res = viafb_hotplug_Xres;
1205 setting_info->first_dev_ver_res = viafb_hotplug_Yres;
1206 setting_info->second_dev_hor_res = viafb_second_xres;
1207 setting_info->second_dev_ver_res = viafb_second_yres;
1208
1209 /* Get lcd attributes */
1210 setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
1211 setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
1212 setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
1213 }
1214
1215 static int parse_active_dev(void)
1216 {
1217 viafb_CRT_ON = STATE_OFF;
1218 viafb_DVI_ON = STATE_OFF;
1219 viafb_LCD_ON = STATE_OFF;
1220 viafb_LCD2_ON = STATE_OFF;
1221 /* 1. Modify the active status of devices. */
1222 /* 2. Keep the order of devices, so we can set corresponding
1223 IGA path to devices in SAMM case. */
1224 /* Note: The previous of active_dev is primary device,
1225 and the following is secondary device. */
1226 if (!viafb_active_dev) {
1227 viafb_CRT_ON = STATE_ON;
1228 viafb_SAMM_ON = STATE_OFF;
1229 } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1230 /* CRT+DVI */
1231 viafb_CRT_ON = STATE_ON;
1232 viafb_DVI_ON = STATE_ON;
1233 viafb_primary_dev = CRT_Device;
1234 } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1235 /* DVI+CRT */
1236 viafb_CRT_ON = STATE_ON;
1237 viafb_DVI_ON = STATE_ON;
1238 viafb_primary_dev = DVI_Device;
1239 } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1240 /* CRT+LCD */
1241 viafb_CRT_ON = STATE_ON;
1242 viafb_LCD_ON = STATE_ON;
1243 viafb_primary_dev = CRT_Device;
1244 } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1245 /* LCD+CRT */
1246 viafb_CRT_ON = STATE_ON;
1247 viafb_LCD_ON = STATE_ON;
1248 viafb_primary_dev = LCD_Device;
1249 } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1250 /* DVI+LCD */
1251 viafb_DVI_ON = STATE_ON;
1252 viafb_LCD_ON = STATE_ON;
1253 viafb_primary_dev = DVI_Device;
1254 } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1255 /* LCD+DVI */
1256 viafb_DVI_ON = STATE_ON;
1257 viafb_LCD_ON = STATE_ON;
1258 viafb_primary_dev = LCD_Device;
1259 } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1260 viafb_LCD_ON = STATE_ON;
1261 viafb_LCD2_ON = STATE_ON;
1262 viafb_primary_dev = LCD_Device;
1263 } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1264 viafb_LCD_ON = STATE_ON;
1265 viafb_LCD2_ON = STATE_ON;
1266 viafb_primary_dev = LCD2_Device;
1267 } else if (!strcmp(viafb_active_dev, "CRT")) {
1268 /* CRT only */
1269 viafb_CRT_ON = STATE_ON;
1270 viafb_SAMM_ON = STATE_OFF;
1271 } else if (!strcmp(viafb_active_dev, "DVI")) {
1272 /* DVI only */
1273 viafb_DVI_ON = STATE_ON;
1274 viafb_SAMM_ON = STATE_OFF;
1275 } else if (!strcmp(viafb_active_dev, "LCD")) {
1276 /* LCD only */
1277 viafb_LCD_ON = STATE_ON;
1278 viafb_SAMM_ON = STATE_OFF;
1279 } else
1280 return -EINVAL;
1281
1282 return 0;
1283 }
1284
1285 static int parse_port(char *opt_str, int *output_interface)
1286 {
1287 if (!strncmp(opt_str, "DVP0", 4))
1288 *output_interface = INTERFACE_DVP0;
1289 else if (!strncmp(opt_str, "DVP1", 4))
1290 *output_interface = INTERFACE_DVP1;
1291 else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1292 *output_interface = INTERFACE_DFP;
1293 else if (!strncmp(opt_str, "DFP_HIGH", 8))
1294 *output_interface = INTERFACE_DFP_HIGH;
1295 else if (!strncmp(opt_str, "DFP_LOW", 7))
1296 *output_interface = INTERFACE_DFP_LOW;
1297 else
1298 *output_interface = INTERFACE_NONE;
1299 return 0;
1300 }
1301
1302 static void parse_lcd_port(void)
1303 {
1304 parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1305 output_interface);
1306 /*Initialize to avoid unexpected behavior */
1307 viaparinfo->chip_info->lvds_chip_info2.output_interface =
1308 INTERFACE_NONE;
1309
1310 DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1311 viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1312 output_interface);
1313 }
1314
1315 static void parse_dvi_port(void)
1316 {
1317 parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1318 output_interface);
1319
1320 DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1321 viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1322 output_interface);
1323 }
1324
1325 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1326
1327 /*
1328 * The proc filesystem read/write function, a simple proc implement to
1329 * get/set the value of DPA DVP0, DVP0DataDriving, DVP0ClockDriving, DVP1,
1330 * DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1331 * CR9B, SR65, CR97, CR99
1332 */
1333 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1334 {
1335 u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1336 dvp0_data_dri =
1337 (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1338 (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1339 dvp0_clk_dri =
1340 (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1341 (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1342 dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1343 seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1344 return 0;
1345 }
1346
1347 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1348 {
1349 return single_open(file, viafb_dvp0_proc_show, NULL);
1350 }
1351
1352 static ssize_t viafb_dvp0_proc_write(struct file *file,
1353 const char __user *buffer, size_t count, loff_t *pos)
1354 {
1355 char buf[20], *value, *pbuf;
1356 u8 reg_val = 0;
1357 unsigned long length, i;
1358 if (count < 1)
1359 return -EINVAL;
1360 length = count > 20 ? 20 : count;
1361 if (copy_from_user(&buf[0], buffer, length))
1362 return -EFAULT;
1363 buf[length - 1] = '\0'; /*Ensure end string */
1364 pbuf = &buf[0];
1365 for (i = 0; i < 3; i++) {
1366 value = strsep(&pbuf, " ");
1367 if (value != NULL) {
1368 strict_strtoul(value, 0, (unsigned long *)&reg_val);
1369 DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1370 reg_val);
1371 switch (i) {
1372 case 0:
1373 viafb_write_reg_mask(CR96, VIACR,
1374 reg_val, 0x0f);
1375 break;
1376 case 1:
1377 viafb_write_reg_mask(SR2A, VIASR,
1378 reg_val << 4, BIT5);
1379 viafb_write_reg_mask(SR1B, VIASR,
1380 reg_val << 1, BIT1);
1381 break;
1382 case 2:
1383 viafb_write_reg_mask(SR2A, VIASR,
1384 reg_val << 3, BIT4);
1385 viafb_write_reg_mask(SR1E, VIASR,
1386 reg_val << 2, BIT2);
1387 break;
1388 default:
1389 break;
1390 }
1391 } else {
1392 break;
1393 }
1394 }
1395 return count;
1396 }
1397
1398 static const struct file_operations viafb_dvp0_proc_fops = {
1399 .owner = THIS_MODULE,
1400 .open = viafb_dvp0_proc_open,
1401 .read = seq_read,
1402 .llseek = seq_lseek,
1403 .release = single_release,
1404 .write = viafb_dvp0_proc_write,
1405 };
1406
1407 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1408 {
1409 u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1410 dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1411 dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1412 dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1413 seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1414 return 0;
1415 }
1416
1417 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1418 {
1419 return single_open(file, viafb_dvp1_proc_show, NULL);
1420 }
1421
1422 static ssize_t viafb_dvp1_proc_write(struct file *file,
1423 const char __user *buffer, size_t count, loff_t *pos)
1424 {
1425 char buf[20], *value, *pbuf;
1426 u8 reg_val = 0;
1427 unsigned long length, i;
1428 if (count < 1)
1429 return -EINVAL;
1430 length = count > 20 ? 20 : count;
1431 if (copy_from_user(&buf[0], buffer, length))
1432 return -EFAULT;
1433 buf[length - 1] = '\0'; /*Ensure end string */
1434 pbuf = &buf[0];
1435 for (i = 0; i < 3; i++) {
1436 value = strsep(&pbuf, " ");
1437 if (value != NULL) {
1438 strict_strtoul(value, 0, (unsigned long *)&reg_val);
1439 switch (i) {
1440 case 0:
1441 viafb_write_reg_mask(CR9B, VIACR,
1442 reg_val, 0x0f);
1443 break;
1444 case 1:
1445 viafb_write_reg_mask(SR65, VIASR,
1446 reg_val << 2, 0x0c);
1447 break;
1448 case 2:
1449 viafb_write_reg_mask(SR65, VIASR,
1450 reg_val, 0x03);
1451 break;
1452 default:
1453 break;
1454 }
1455 } else {
1456 break;
1457 }
1458 }
1459 return count;
1460 }
1461
1462 static const struct file_operations viafb_dvp1_proc_fops = {
1463 .owner = THIS_MODULE,
1464 .open = viafb_dvp1_proc_open,
1465 .read = seq_read,
1466 .llseek = seq_lseek,
1467 .release = single_release,
1468 .write = viafb_dvp1_proc_write,
1469 };
1470
1471 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1472 {
1473 u8 dfp_high = 0;
1474 dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1475 seq_printf(m, "%x\n", dfp_high);
1476 return 0;
1477 }
1478
1479 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1480 {
1481 return single_open(file, viafb_dfph_proc_show, NULL);
1482 }
1483
1484 static ssize_t viafb_dfph_proc_write(struct file *file,
1485 const char __user *buffer, size_t count, loff_t *pos)
1486 {
1487 char buf[20];
1488 u8 reg_val = 0;
1489 unsigned long length;
1490 if (count < 1)
1491 return -EINVAL;
1492 length = count > 20 ? 20 : count;
1493 if (copy_from_user(&buf[0], buffer, length))
1494 return -EFAULT;
1495 buf[length - 1] = '\0'; /*Ensure end string */
1496 strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1497 viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1498 return count;
1499 }
1500
1501 static const struct file_operations viafb_dfph_proc_fops = {
1502 .owner = THIS_MODULE,
1503 .open = viafb_dfph_proc_open,
1504 .read = seq_read,
1505 .llseek = seq_lseek,
1506 .release = single_release,
1507 .write = viafb_dfph_proc_write,
1508 };
1509
1510 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1511 {
1512 u8 dfp_low = 0;
1513 dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1514 seq_printf(m, "%x\n", dfp_low);
1515 return 0;
1516 }
1517
1518 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1519 {
1520 return single_open(file, viafb_dfpl_proc_show, NULL);
1521 }
1522
1523 static ssize_t viafb_dfpl_proc_write(struct file *file,
1524 const char __user *buffer, size_t count, loff_t *pos)
1525 {
1526 char buf[20];
1527 u8 reg_val = 0;
1528 unsigned long length;
1529 if (count < 1)
1530 return -EINVAL;
1531 length = count > 20 ? 20 : count;
1532 if (copy_from_user(&buf[0], buffer, length))
1533 return -EFAULT;
1534 buf[length - 1] = '\0'; /*Ensure end string */
1535 strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1536 viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1537 return count;
1538 }
1539
1540 static const struct file_operations viafb_dfpl_proc_fops = {
1541 .owner = THIS_MODULE,
1542 .open = viafb_dfpl_proc_open,
1543 .read = seq_read,
1544 .llseek = seq_lseek,
1545 .release = single_release,
1546 .write = viafb_dfpl_proc_write,
1547 };
1548
1549 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1550 {
1551 u8 vt1636_08 = 0, vt1636_09 = 0;
1552 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1553 case VT1636_LVDS:
1554 vt1636_08 =
1555 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1556 &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1557 vt1636_09 =
1558 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1559 &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1560 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1561 break;
1562 default:
1563 break;
1564 }
1565 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1566 case VT1636_LVDS:
1567 vt1636_08 =
1568 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1569 &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1570 vt1636_09 =
1571 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1572 &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1573 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1574 break;
1575 default:
1576 break;
1577 }
1578 return 0;
1579 }
1580
1581 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1582 {
1583 return single_open(file, viafb_vt1636_proc_show, NULL);
1584 }
1585
1586 static ssize_t viafb_vt1636_proc_write(struct file *file,
1587 const char __user *buffer, size_t count, loff_t *pos)
1588 {
1589 char buf[30], *value, *pbuf;
1590 struct IODATA reg_val;
1591 unsigned long length, i;
1592 if (count < 1)
1593 return -EINVAL;
1594 length = count > 30 ? 30 : count;
1595 if (copy_from_user(&buf[0], buffer, length))
1596 return -EFAULT;
1597 buf[length - 1] = '\0'; /*Ensure end string */
1598 pbuf = &buf[0];
1599 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1600 case VT1636_LVDS:
1601 for (i = 0; i < 2; i++) {
1602 value = strsep(&pbuf, " ");
1603 if (value != NULL) {
1604 strict_strtoul(value, 0,
1605 (unsigned long *)&reg_val.Data);
1606 switch (i) {
1607 case 0:
1608 reg_val.Index = 0x08;
1609 reg_val.Mask = 0x0f;
1610 viafb_gpio_i2c_write_mask_lvds
1611 (viaparinfo->lvds_setting_info,
1612 &viaparinfo->
1613 chip_info->lvds_chip_info,
1614 reg_val);
1615 break;
1616 case 1:
1617 reg_val.Index = 0x09;
1618 reg_val.Mask = 0x1f;
1619 viafb_gpio_i2c_write_mask_lvds
1620 (viaparinfo->lvds_setting_info,
1621 &viaparinfo->
1622 chip_info->lvds_chip_info,
1623 reg_val);
1624 break;
1625 default:
1626 break;
1627 }
1628 } else {
1629 break;
1630 }
1631 }
1632 break;
1633 default:
1634 break;
1635 }
1636 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1637 case VT1636_LVDS:
1638 for (i = 0; i < 2; i++) {
1639 value = strsep(&pbuf, " ");
1640 if (value != NULL) {
1641 strict_strtoul(value, 0,
1642 (unsigned long *)&reg_val.Data);
1643 switch (i) {
1644 case 0:
1645 reg_val.Index = 0x08;
1646 reg_val.Mask = 0x0f;
1647 viafb_gpio_i2c_write_mask_lvds
1648 (viaparinfo->lvds_setting_info2,
1649 &viaparinfo->
1650 chip_info->lvds_chip_info2,
1651 reg_val);
1652 break;
1653 case 1:
1654 reg_val.Index = 0x09;
1655 reg_val.Mask = 0x1f;
1656 viafb_gpio_i2c_write_mask_lvds
1657 (viaparinfo->lvds_setting_info2,
1658 &viaparinfo->
1659 chip_info->lvds_chip_info2,
1660 reg_val);
1661 break;
1662 default:
1663 break;
1664 }
1665 } else {
1666 break;
1667 }
1668 }
1669 break;
1670 default:
1671 break;
1672 }
1673 return count;
1674 }
1675
1676 static const struct file_operations viafb_vt1636_proc_fops = {
1677 .owner = THIS_MODULE,
1678 .open = viafb_vt1636_proc_open,
1679 .read = seq_read,
1680 .llseek = seq_lseek,
1681 .release = single_release,
1682 .write = viafb_vt1636_proc_write,
1683 };
1684
1685 static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
1686 {
1687 *viafb_entry = proc_mkdir("viafb", NULL);
1688 if (*viafb_entry) {
1689 proc_create("dvp0", 0, *viafb_entry, &viafb_dvp0_proc_fops);
1690 proc_create("dvp1", 0, *viafb_entry, &viafb_dvp1_proc_fops);
1691 proc_create("dfph", 0, *viafb_entry, &viafb_dfph_proc_fops);
1692 proc_create("dfpl", 0, *viafb_entry, &viafb_dfpl_proc_fops);
1693 if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
1694 lvds_chip_name || VT1636_LVDS ==
1695 viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1696 proc_create("vt1636", 0, *viafb_entry, &viafb_vt1636_proc_fops);
1697 }
1698
1699 }
1700 }
1701 static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
1702 {
1703 struct chip_information *chip_info = &viaparinfo->shared->chip_info;
1704
1705 remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1706 remove_proc_entry("dvp1", viafb_entry);
1707 remove_proc_entry("dfph", viafb_entry);
1708 remove_proc_entry("dfpl", viafb_entry);
1709 if (chip_info->lvds_chip_info.lvds_chip_name == VT1636_LVDS
1710 || chip_info->lvds_chip_info2.lvds_chip_name == VT1636_LVDS)
1711 remove_proc_entry("vt1636", viafb_entry);
1712
1713 remove_proc_entry("viafb", NULL);
1714 }
1715
1716 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1717
1718 static int parse_mode(const char *str, u32 *xres, u32 *yres)
1719 {
1720 char *ptr;
1721
1722 if (!str) {
1723 *xres = 640;
1724 *yres = 480;
1725 return 0;
1726 }
1727
1728 *xres = simple_strtoul(str, &ptr, 10);
1729 if (ptr[0] != 'x')
1730 return -EINVAL;
1731
1732 *yres = simple_strtoul(&ptr[1], &ptr, 10);
1733 if (ptr[0])
1734 return -EINVAL;
1735
1736 return 0;
1737 }
1738
1739
1740 int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
1741 {
1742 u32 default_xres, default_yres;
1743 struct VideoModeTable *vmode_entry;
1744 struct fb_var_screeninfo default_var;
1745 int rc;
1746 u32 viafb_par_length;
1747
1748 DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1749 memset(&default_var, 0, sizeof(default_var));
1750 viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1751
1752 /* Allocate fb_info and ***_par here, also including some other needed
1753 * variables
1754 */
1755 viafbinfo = framebuffer_alloc(viafb_par_length +
1756 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1757 &vdev->pdev->dev);
1758 if (!viafbinfo) {
1759 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1760 return -ENOMEM;
1761 }
1762
1763 viaparinfo = (struct viafb_par *)viafbinfo->par;
1764 viaparinfo->shared = viafbinfo->par + viafb_par_length;
1765 viaparinfo->shared->vdev = vdev;
1766 viaparinfo->vram_addr = 0;
1767 viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1768 viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1769 viaparinfo->lvds_setting_info2 =
1770 &viaparinfo->shared->lvds_setting_info2;
1771 viaparinfo->crt_setting_info = &viaparinfo->shared->crt_setting_info;
1772 viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1773
1774 if (viafb_dual_fb)
1775 viafb_SAMM_ON = 1;
1776 parse_lcd_port();
1777 parse_dvi_port();
1778
1779 /* for dual-fb must viafb_SAMM_ON=1 and viafb_dual_fb=1 */
1780 if (!viafb_SAMM_ON)
1781 viafb_dual_fb = 0;
1782
1783 viafb_init_chip_info(vdev->chip_type);
1784 /*
1785 * The framebuffer will have been successfully mapped by
1786 * the core (or we'd not be here), but we still need to
1787 * set up our own accounting.
1788 */
1789 viaparinfo->fbmem = vdev->fbmem_start;
1790 viaparinfo->memsize = vdev->fbmem_len;
1791 viaparinfo->fbmem_free = viaparinfo->memsize;
1792 viaparinfo->fbmem_used = 0;
1793 viafbinfo->screen_base = vdev->fbmem;
1794
1795 viafbinfo->fix.mmio_start = vdev->engine_start;
1796 viafbinfo->fix.mmio_len = vdev->engine_len;
1797 viafbinfo->node = 0;
1798 viafbinfo->fbops = &viafb_ops;
1799 viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1800
1801 viafbinfo->pseudo_palette = pseudo_pal;
1802 if (viafb_accel && !viafb_init_engine(viafbinfo)) {
1803 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1804 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT;
1805 default_var.accel_flags = FB_ACCELF_TEXT;
1806 } else {
1807 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1808 default_var.accel_flags = 0;
1809 }
1810
1811 if (viafb_second_size && (viafb_second_size < 8)) {
1812 viafb_second_offset = viaparinfo->fbmem_free -
1813 viafb_second_size * 1024 * 1024;
1814 } else {
1815 viafb_second_size = 8;
1816 viafb_second_offset = viaparinfo->fbmem_free -
1817 viafb_second_size * 1024 * 1024;
1818 }
1819
1820 parse_mode(viafb_mode, &default_xres, &default_yres);
1821 vmode_entry = viafb_get_mode(default_xres, default_yres);
1822 if (viafb_SAMM_ON == 1) {
1823 parse_mode(viafb_mode1, &viafb_second_xres,
1824 &viafb_second_yres);
1825
1826 if (0 == viafb_second_virtual_xres) {
1827 switch (viafb_second_xres) {
1828 case 1400:
1829 viafb_second_virtual_xres = 1408;
1830 break;
1831 default:
1832 viafb_second_virtual_xres = viafb_second_xres;
1833 break;
1834 }
1835 }
1836 if (0 == viafb_second_virtual_yres)
1837 viafb_second_virtual_yres = viafb_second_yres;
1838 }
1839
1840 default_var.xres = default_xres;
1841 default_var.yres = default_yres;
1842 switch (default_xres) {
1843 case 1400:
1844 default_var.xres_virtual = 1408;
1845 break;
1846 default:
1847 default_var.xres_virtual = default_xres;
1848 break;
1849 }
1850 default_var.yres_virtual = default_yres;
1851 default_var.bits_per_pixel = viafb_bpp;
1852 default_var.pixclock =
1853 viafb_get_pixclock(default_xres, default_yres, viafb_refresh);
1854 default_var.left_margin = (default_xres >> 3) & 0xf8;
1855 default_var.right_margin = 32;
1856 default_var.upper_margin = 16;
1857 default_var.lower_margin = 4;
1858 default_var.hsync_len = default_var.left_margin;
1859 default_var.vsync_len = 4;
1860 viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1861 viafbinfo->var = default_var;
1862
1863 if (viafb_dual_fb) {
1864 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1865 &vdev->pdev->dev);
1866 if (!viafbinfo1) {
1867 printk(KERN_ERR
1868 "allocate the second framebuffer struct error\n");
1869 rc = -ENOMEM;
1870 goto out_fb_release;
1871 }
1872 viaparinfo1 = viafbinfo1->par;
1873 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1874 viaparinfo1->vram_addr = viafb_second_offset;
1875 viaparinfo1->memsize = viaparinfo->memsize -
1876 viafb_second_offset;
1877 viaparinfo->memsize = viafb_second_offset;
1878 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1879
1880 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1881 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1882 viaparinfo1->fbmem_used;
1883 viaparinfo->fbmem_free = viaparinfo->memsize;
1884 viaparinfo->fbmem_used = 0;
1885
1886 viaparinfo->iga_path = IGA1;
1887 viaparinfo1->iga_path = IGA2;
1888 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1889 viafbinfo1->par = viaparinfo1;
1890 viafbinfo1->screen_base = viafbinfo->screen_base +
1891 viafb_second_offset;
1892
1893 default_var.xres = viafb_second_xres;
1894 default_var.yres = viafb_second_yres;
1895 default_var.xres_virtual = viafb_second_virtual_xres;
1896 default_var.yres_virtual = viafb_second_virtual_yres;
1897 default_var.bits_per_pixel = viafb_bpp1;
1898 default_var.pixclock =
1899 viafb_get_pixclock(viafb_second_xres, viafb_second_yres,
1900 viafb_refresh);
1901 default_var.left_margin = (viafb_second_xres >> 3) & 0xf8;
1902 default_var.right_margin = 32;
1903 default_var.upper_margin = 16;
1904 default_var.lower_margin = 4;
1905 default_var.hsync_len = default_var.left_margin;
1906 default_var.vsync_len = 4;
1907
1908 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1909 viafb_check_var(&default_var, viafbinfo1);
1910 viafbinfo1->var = default_var;
1911 viafb_update_fix(viafbinfo1);
1912 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1913 &viafbinfo1->fix);
1914 }
1915
1916 viafb_check_var(&viafbinfo->var, viafbinfo);
1917 viafb_update_fix(viafbinfo);
1918 viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1919 &viafbinfo->fix);
1920 default_var.activate = FB_ACTIVATE_NOW;
1921 rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1922 if (rc)
1923 goto out_fb1_release;
1924
1925 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1926 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1927 rc = register_framebuffer(viafbinfo1);
1928 if (rc)
1929 goto out_dealloc_cmap;
1930 }
1931 rc = register_framebuffer(viafbinfo);
1932 if (rc)
1933 goto out_fb1_unreg_lcd_cle266;
1934
1935 if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1936 || (viaparinfo->chip_info->gfx_chip_name !=
1937 UNICHROME_CLE266))) {
1938 rc = register_framebuffer(viafbinfo1);
1939 if (rc)
1940 goto out_fb_unreg;
1941 }
1942 DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1943 viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1944 default_var.yres, default_var.bits_per_pixel);
1945
1946 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1947 viafb_init_proc(&viaparinfo->shared->proc_entry);
1948 #endif
1949 viafb_init_dac(IGA2);
1950 return 0;
1951
1952 out_fb_unreg:
1953 unregister_framebuffer(viafbinfo);
1954 out_fb1_unreg_lcd_cle266:
1955 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1956 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1957 unregister_framebuffer(viafbinfo1);
1958 out_dealloc_cmap:
1959 fb_dealloc_cmap(&viafbinfo->cmap);
1960 out_fb1_release:
1961 if (viafbinfo1)
1962 framebuffer_release(viafbinfo1);
1963 out_fb_release:
1964 framebuffer_release(viafbinfo);
1965 return rc;
1966 }
1967
1968 void __devexit via_fb_pci_remove(struct pci_dev *pdev)
1969 {
1970 DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1971 fb_dealloc_cmap(&viafbinfo->cmap);
1972 unregister_framebuffer(viafbinfo);
1973 if (viafb_dual_fb)
1974 unregister_framebuffer(viafbinfo1);
1975 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1976 viafb_remove_proc(viaparinfo->shared->proc_entry);
1977 #endif
1978 framebuffer_release(viafbinfo);
1979 if (viafb_dual_fb)
1980 framebuffer_release(viafbinfo1);
1981 }
1982
1983 #ifndef MODULE
1984 static int __init viafb_setup(char *options)
1985 {
1986 char *this_opt;
1987 DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1988
1989 if (!options || !*options)
1990 return 0;
1991
1992 while ((this_opt = strsep(&options, ",")) != NULL) {
1993 if (!*this_opt)
1994 continue;
1995
1996 if (!strncmp(this_opt, "viafb_mode1=", 12))
1997 viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1998 else if (!strncmp(this_opt, "viafb_mode=", 11))
1999 viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
2000 else if (!strncmp(this_opt, "viafb_bpp1=", 11))
2001 strict_strtoul(this_opt + 11, 0,
2002 (unsigned long *)&viafb_bpp1);
2003 else if (!strncmp(this_opt, "viafb_bpp=", 10))
2004 strict_strtoul(this_opt + 10, 0,
2005 (unsigned long *)&viafb_bpp);
2006 else if (!strncmp(this_opt, "viafb_refresh1=", 15))
2007 strict_strtoul(this_opt + 15, 0,
2008 (unsigned long *)&viafb_refresh1);
2009 else if (!strncmp(this_opt, "viafb_refresh=", 14))
2010 strict_strtoul(this_opt + 14, 0,
2011 (unsigned long *)&viafb_refresh);
2012 else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21))
2013 strict_strtoul(this_opt + 21, 0,
2014 (unsigned long *)&viafb_lcd_dsp_method);
2015 else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19))
2016 strict_strtoul(this_opt + 19, 0,
2017 (unsigned long *)&viafb_lcd_panel_id);
2018 else if (!strncmp(this_opt, "viafb_accel=", 12))
2019 strict_strtoul(this_opt + 12, 0,
2020 (unsigned long *)&viafb_accel);
2021 else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14))
2022 strict_strtoul(this_opt + 14, 0,
2023 (unsigned long *)&viafb_SAMM_ON);
2024 else if (!strncmp(this_opt, "viafb_active_dev=", 17))
2025 viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2026 else if (!strncmp(this_opt,
2027 "viafb_display_hardware_layout=", 30))
2028 strict_strtoul(this_opt + 30, 0,
2029 (unsigned long *)&viafb_display_hardware_layout);
2030 else if (!strncmp(this_opt, "viafb_second_size=", 18))
2031 strict_strtoul(this_opt + 18, 0,
2032 (unsigned long *)&viafb_second_size);
2033 else if (!strncmp(this_opt,
2034 "viafb_platform_epia_dvi=", 24))
2035 strict_strtoul(this_opt + 24, 0,
2036 (unsigned long *)&viafb_platform_epia_dvi);
2037 else if (!strncmp(this_opt,
2038 "viafb_device_lcd_dualedge=", 26))
2039 strict_strtoul(this_opt + 26, 0,
2040 (unsigned long *)&viafb_device_lcd_dualedge);
2041 else if (!strncmp(this_opt, "viafb_bus_width=", 16))
2042 strict_strtoul(this_opt + 16, 0,
2043 (unsigned long *)&viafb_bus_width);
2044 else if (!strncmp(this_opt, "viafb_lcd_mode=", 15))
2045 strict_strtoul(this_opt + 15, 0,
2046 (unsigned long *)&viafb_lcd_mode);
2047 else if (!strncmp(this_opt, "viafb_lcd_port=", 15))
2048 viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2049 else if (!strncmp(this_opt, "viafb_dvi_port=", 15))
2050 viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2051 }
2052 return 0;
2053 }
2054 #endif
2055
2056 /*
2057 * These are called out of via-core for now.
2058 */
2059 int __init viafb_init(void)
2060 {
2061 u32 dummy;
2062 #ifndef MODULE
2063 char *option = NULL;
2064 if (fb_get_options("viafb", &option))
2065 return -ENODEV;
2066 viafb_setup(option);
2067 #endif
2068 if (parse_mode(viafb_mode, &dummy, &dummy)
2069 || parse_mode(viafb_mode1, &dummy, &dummy)
2070 || viafb_bpp < 0 || viafb_bpp > 32
2071 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2072 || parse_active_dev())
2073 return -EINVAL;
2074
2075 printk(KERN_INFO
2076 "VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
2077 VERSION_MAJOR, VERSION_MINOR);
2078 return 0;
2079 }
2080
2081 void __exit viafb_exit(void)
2082 {
2083 DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2084 }
2085
2086 static struct fb_ops viafb_ops = {
2087 .owner = THIS_MODULE,
2088 .fb_open = viafb_open,
2089 .fb_release = viafb_release,
2090 .fb_check_var = viafb_check_var,
2091 .fb_set_par = viafb_set_par,
2092 .fb_setcolreg = viafb_setcolreg,
2093 .fb_pan_display = viafb_pan_display,
2094 .fb_blank = viafb_blank,
2095 .fb_fillrect = viafb_fillrect,
2096 .fb_copyarea = viafb_copyarea,
2097 .fb_imageblit = viafb_imageblit,
2098 .fb_cursor = viafb_cursor,
2099 .fb_ioctl = viafb_ioctl,
2100 .fb_sync = viafb_sync,
2101 };
2102
2103
2104 #ifdef MODULE
2105 module_param(viafb_mode, charp, S_IRUSR);
2106 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2107
2108 module_param(viafb_mode1, charp, S_IRUSR);
2109 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2110
2111 module_param(viafb_bpp, int, S_IRUSR);
2112 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2113
2114 module_param(viafb_bpp1, int, S_IRUSR);
2115 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2116
2117 module_param(viafb_refresh, int, S_IRUSR);
2118 MODULE_PARM_DESC(viafb_refresh,
2119 "Set CRT viafb_refresh rate (default = 60)");
2120
2121 module_param(viafb_refresh1, int, S_IRUSR);
2122 MODULE_PARM_DESC(viafb_refresh1,
2123 "Set CRT refresh rate (default = 60)");
2124
2125 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2126 MODULE_PARM_DESC(viafb_lcd_panel_id,
2127 "Set Flat Panel type(Default=1024x768)");
2128
2129 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2130 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2131 "Set Flat Panel display scaling method.(Default=Expandsion)");
2132
2133 module_param(viafb_SAMM_ON, int, S_IRUSR);
2134 MODULE_PARM_DESC(viafb_SAMM_ON,
2135 "Turn on/off flag of SAMM(Default=OFF)");
2136
2137 module_param(viafb_accel, int, S_IRUSR);
2138 MODULE_PARM_DESC(viafb_accel,
2139 "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2140
2141 module_param(viafb_active_dev, charp, S_IRUSR);
2142 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2143
2144 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2145 MODULE_PARM_DESC(viafb_display_hardware_layout,
2146 "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2147
2148 module_param(viafb_second_size, int, S_IRUSR);
2149 MODULE_PARM_DESC(viafb_second_size,
2150 "Set secondary device memory size");
2151
2152 module_param(viafb_dual_fb, int, S_IRUSR);
2153 MODULE_PARM_DESC(viafb_dual_fb,
2154 "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2155
2156 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2157 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2158 "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2159
2160 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2161 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2162 "Turn on/off flag of dual edge panel.(Default = OFF)");
2163
2164 module_param(viafb_bus_width, int, S_IRUSR);
2165 MODULE_PARM_DESC(viafb_bus_width,
2166 "Set bus width of panel.(Default = 12)");
2167
2168 module_param(viafb_lcd_mode, int, S_IRUSR);
2169 MODULE_PARM_DESC(viafb_lcd_mode,
2170 "Set Flat Panel mode(Default=OPENLDI)");
2171
2172 module_param(viafb_lcd_port, charp, S_IRUSR);
2173 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2174
2175 module_param(viafb_dvi_port, charp, S_IRUSR);
2176 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2177
2178 MODULE_LICENSE("GPL");
2179 #endif
Linux kernel - Deliverables
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