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WIP FPC-III support
[linux/fpc-iii.git] / drivers / video / fbdev / via / viafbdev.c
blob22deb340a0484fe394d96ac0c5c24a9b497de235
1 // SPDX-License-Identifier: GPL-2.0-or-later
2 /*
3 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
4 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
5
6 */
7
8 #include <linux/compiler.h>
9 #include <linux/module.h>
10 #include <linux/seq_file.h>
11 #include <linux/slab.h>
12 #include <linux/stat.h>
13 #include <linux/via-core.h>
14 #include <linux/via_i2c.h>
15
16 #define _MASTER_FILE
17 #include "global.h"
18
19 static char *viafb_name = "Via";
20 static u32 pseudo_pal[17];
21
22 /* video mode */
23 static char *viafb_mode;
24 static char *viafb_mode1;
25 static int viafb_bpp = 32;
26 static int viafb_bpp1 = 32;
27
28 static unsigned int viafb_second_offset;
29 static int viafb_second_size;
30
31 static int viafb_accel = 1;
32
33 /* Added for specifying active devices.*/
34 static char *viafb_active_dev;
35
36 /*Added for specify lcd output port*/
37 static char *viafb_lcd_port = "";
38 static char *viafb_dvi_port = "";
39
40 static void retrieve_device_setting(struct viafb_ioctl_setting
41 *setting_info);
42 static int viafb_pan_display(struct fb_var_screeninfo *var,
43 struct fb_info *info);
44
45 static struct fb_ops viafb_ops;
46
47 /* supported output devices on each IGP
48 * only CX700, VX800, VX855, VX900 were documented
49 * VIA_CRT should be everywhere
50 * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
51 * source selection on CX700 and later
52 * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
53 */
54 static const u32 supported_odev_map[] = {
55 [UNICHROME_CLE266] = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
56 [UNICHROME_K400] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
57 | VIA_LVDS2,
58 [UNICHROME_K800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
59 | VIA_LVDS2,
60 [UNICHROME_PM800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
61 | VIA_LVDS2,
62 [UNICHROME_CN700] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
63 | VIA_LVDS2,
64 [UNICHROME_CX700] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
65 [UNICHROME_CN750] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
66 [UNICHROME_K8M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
67 [UNICHROME_P4M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
68 [UNICHROME_P4M900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
69 [UNICHROME_VX800] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
70 [UNICHROME_VX855] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
71 [UNICHROME_VX900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
72 };
73
74 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
75 {
76 var->grayscale = 0;
77 var->red.msb_right = 0;
78 var->green.msb_right = 0;
79 var->blue.msb_right = 0;
80 var->transp.offset = 0;
81 var->transp.length = 0;
82 var->transp.msb_right = 0;
83 var->nonstd = 0;
84 switch (depth) {
85 case 8:
86 var->bits_per_pixel = 8;
87 var->red.offset = 0;
88 var->green.offset = 0;
89 var->blue.offset = 0;
90 var->red.length = 8;
91 var->green.length = 8;
92 var->blue.length = 8;
93 break;
94 case 15:
95 var->bits_per_pixel = 16;
96 var->red.offset = 10;
97 var->green.offset = 5;
98 var->blue.offset = 0;
99 var->red.length = 5;
100 var->green.length = 5;
101 var->blue.length = 5;
102 break;
103 case 16:
104 var->bits_per_pixel = 16;
105 var->red.offset = 11;
106 var->green.offset = 5;
107 var->blue.offset = 0;
108 var->red.length = 5;
109 var->green.length = 6;
110 var->blue.length = 5;
111 break;
112 case 24:
113 var->bits_per_pixel = 32;
114 var->red.offset = 16;
115 var->green.offset = 8;
116 var->blue.offset = 0;
117 var->red.length = 8;
118 var->green.length = 8;
119 var->blue.length = 8;
120 break;
121 case 30:
122 var->bits_per_pixel = 32;
123 var->red.offset = 20;
124 var->green.offset = 10;
125 var->blue.offset = 0;
126 var->red.length = 10;
127 var->green.length = 10;
128 var->blue.length = 10;
129 break;
130 }
131 }
132
133 static void viafb_update_fix(struct fb_info *info)
134 {
135 u32 bpp = info->var.bits_per_pixel;
136
137 info->fix.visual =
138 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
139 info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
140 VIA_PITCH_SIZE);
141 }
142
143 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
144 struct viafb_par *viaparinfo)
145 {
146 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
147 strcpy(fix->id, viafb_name);
148
149 fix->smem_start = viaparinfo->fbmem;
150 fix->smem_len = viaparinfo->fbmem_free;
151
152 fix->type = FB_TYPE_PACKED_PIXELS;
153 fix->type_aux = 0;
154 fix->visual = FB_VISUAL_TRUECOLOR;
155
156 fix->xpanstep = fix->ywrapstep = 0;
157 fix->ypanstep = 1;
158
159 /* Just tell the accel name */
160 viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
161 }
162 static int viafb_open(struct fb_info *info, int user)
163 {
164 DEBUG_MSG(KERN_INFO "viafb_open!\n");
165 return 0;
166 }
167
168 static int viafb_release(struct fb_info *info, int user)
169 {
170 DEBUG_MSG(KERN_INFO "viafb_release!\n");
171 return 0;
172 }
173
174 static inline int get_var_refresh(struct fb_var_screeninfo *var)
175 {
176 u32 htotal, vtotal;
177
178 htotal = var->left_margin + var->xres + var->right_margin
179 + var->hsync_len;
180 vtotal = var->upper_margin + var->yres + var->lower_margin
181 + var->vsync_len;
182 return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
183 }
184
185 static int viafb_check_var(struct fb_var_screeninfo *var,
186 struct fb_info *info)
187 {
188 int depth, refresh;
189 struct viafb_par *ppar = info->par;
190 u32 line;
191
192 DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
193 /* Sanity check */
194 /* HW neither support interlacte nor double-scaned mode */
195 if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
196 return -EINVAL;
197
198 /* the refresh rate is not important here, as we only want to know
199 * whether the resolution exists
200 */
201 if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
202 DEBUG_MSG(KERN_INFO
203 "viafb: Mode %dx%dx%d not supported!!\n",
204 var->xres, var->yres, var->bits_per_pixel);
205 return -EINVAL;
206 }
207
208 depth = fb_get_color_depth(var, &info->fix);
209 if (!depth)
210 depth = var->bits_per_pixel;
211
212 if (depth < 0 || depth > 32)
213 return -EINVAL;
214 else if (!depth)
215 depth = 24;
216 else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
217 depth = 15;
218 else if (depth == 30)
219 depth = 30;
220 else if (depth <= 8)
221 depth = 8;
222 else if (depth <= 16)
223 depth = 16;
224 else
225 depth = 24;
226
227 viafb_fill_var_color_info(var, depth);
228 if (var->xres_virtual < var->xres)
229 var->xres_virtual = var->xres;
230
231 line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
232 VIA_PITCH_SIZE);
233 if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
234 return -EINVAL;
235
236 /* Based on var passed in to calculate the refresh,
237 * because our driver use some modes special.
238 */
239 refresh = viafb_get_refresh(var->xres, var->yres,
240 get_var_refresh(var));
241
242 /* Adjust var according to our driver's own table */
243 viafb_fill_var_timing_info(var,
244 viafb_get_best_mode(var->xres, var->yres, refresh));
245 if (var->accel_flags & FB_ACCELF_TEXT &&
246 !ppar->shared->vdev->engine_mmio)
247 var->accel_flags = 0;
248
249 return 0;
250 }
251
252 static int viafb_set_par(struct fb_info *info)
253 {
254 struct viafb_par *viapar = info->par;
255 int refresh;
256 DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
257
258 viafb_update_fix(info);
259 viapar->depth = fb_get_color_depth(&info->var, &info->fix);
260 viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
261 viafbinfo->var.bits_per_pixel, 0);
262
263 if (viafb_dual_fb) {
264 viafb_update_device_setting(viafbinfo1->var.xres,
265 viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
266 1);
267 } else if (viafb_SAMM_ON == 1) {
268 DEBUG_MSG(KERN_INFO
269 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
270 viafb_second_xres, viafb_second_yres, viafb_bpp1);
271
272 viafb_update_device_setting(viafb_second_xres,
273 viafb_second_yres, viafb_bpp1, 1);
274 }
275
276 refresh = get_var_refresh(&info->var);
277 if (viafb_dual_fb && viapar->iga_path == IGA2) {
278 viafb_bpp1 = info->var.bits_per_pixel;
279 viafb_refresh1 = refresh;
280 } else {
281 viafb_bpp = info->var.bits_per_pixel;
282 viafb_refresh = refresh;
283 }
284
285 if (info->var.accel_flags & FB_ACCELF_TEXT)
286 info->flags &= ~FBINFO_HWACCEL_DISABLED;
287 else
288 info->flags |= FBINFO_HWACCEL_DISABLED;
289 viafb_setmode();
290 viafb_pan_display(&info->var, info);
291
292 return 0;
293 }
294
295 /* Set one color register */
296 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
297 unsigned blue, unsigned transp, struct fb_info *info)
298 {
299 struct viafb_par *viapar = info->par;
300 u32 r, g, b;
301
302 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
303 if (regno > 255)
304 return -EINVAL;
305
306 if (!viafb_dual_fb || viapar->iga_path == IGA1)
307 viafb_set_primary_color_register(regno, red >> 8,
308 green >> 8, blue >> 8);
309
310 if (!viafb_dual_fb || viapar->iga_path == IGA2)
311 viafb_set_secondary_color_register(regno, red >> 8,
312 green >> 8, blue >> 8);
313 } else {
314 if (regno > 15)
315 return -EINVAL;
316
317 r = (red >> (16 - info->var.red.length))
318 << info->var.red.offset;
319 b = (blue >> (16 - info->var.blue.length))
320 << info->var.blue.offset;
321 g = (green >> (16 - info->var.green.length))
322 << info->var.green.offset;
323 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
324 }
325
326 return 0;
327 }
328
329 static int viafb_pan_display(struct fb_var_screeninfo *var,
330 struct fb_info *info)
331 {
332 struct viafb_par *viapar = info->par;
333 u32 vram_addr = viapar->vram_addr
334 + var->yoffset * info->fix.line_length
335 + var->xoffset * info->var.bits_per_pixel / 8;
336
337 DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
338 if (!viafb_dual_fb) {
339 via_set_primary_address(vram_addr);
340 via_set_secondary_address(vram_addr);
341 } else if (viapar->iga_path == IGA1)
342 via_set_primary_address(vram_addr);
343 else
344 via_set_secondary_address(vram_addr);
345
346 return 0;
347 }
348
349 static int viafb_blank(int blank_mode, struct fb_info *info)
350 {
351 DEBUG_MSG(KERN_INFO "viafb_blank!\n");
352 /* clear DPMS setting */
353
354 switch (blank_mode) {
355 case FB_BLANK_UNBLANK:
356 /* Screen: On, HSync: On, VSync: On */
357 /* control CRT monitor power management */
358 via_set_state(VIA_CRT, VIA_STATE_ON);
359 break;
360 case FB_BLANK_HSYNC_SUSPEND:
361 /* Screen: Off, HSync: Off, VSync: On */
362 /* control CRT monitor power management */
363 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
364 break;
365 case FB_BLANK_VSYNC_SUSPEND:
366 /* Screen: Off, HSync: On, VSync: Off */
367 /* control CRT monitor power management */
368 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
369 break;
370 case FB_BLANK_POWERDOWN:
371 /* Screen: Off, HSync: Off, VSync: Off */
372 /* control CRT monitor power management */
373 via_set_state(VIA_CRT, VIA_STATE_OFF);
374 break;
375 }
376
377 return 0;
378 }
379
380 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
381 {
382 union {
383 struct viafb_ioctl_mode viamode;
384 struct viafb_ioctl_samm viasamm;
385 struct viafb_driver_version driver_version;
386 struct fb_var_screeninfo sec_var;
387 struct _panel_size_pos_info panel_pos_size_para;
388 struct viafb_ioctl_setting viafb_setting;
389 struct device_t active_dev;
390 } u;
391 u32 state_info = 0;
392 u32 *viafb_gamma_table;
393 char driver_name[] = "viafb";
394
395 u32 __user *argp = (u32 __user *) arg;
396 u32 gpu32;
397
398 DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
399 printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
400 memset(&u, 0, sizeof(u));
401
402 switch (cmd) {
403 case VIAFB_GET_CHIP_INFO:
404 if (copy_to_user(argp, viaparinfo->chip_info,
405 sizeof(struct chip_information)))
406 return -EFAULT;
407 break;
408 case VIAFB_GET_INFO_SIZE:
409 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
410 case VIAFB_GET_INFO:
411 return viafb_ioctl_get_viafb_info(arg);
412 case VIAFB_HOTPLUG:
413 return put_user(viafb_ioctl_hotplug(info->var.xres,
414 info->var.yres,
415 info->var.bits_per_pixel), argp);
416 case VIAFB_SET_HOTPLUG_FLAG:
417 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
418 return -EFAULT;
419 viafb_hotplug = (gpu32) ? 1 : 0;
420 break;
421 case VIAFB_GET_RESOLUTION:
422 u.viamode.xres = (u32) viafb_hotplug_Xres;
423 u.viamode.yres = (u32) viafb_hotplug_Yres;
424 u.viamode.refresh = (u32) viafb_hotplug_refresh;
425 u.viamode.bpp = (u32) viafb_hotplug_bpp;
426 if (viafb_SAMM_ON == 1) {
427 u.viamode.xres_sec = viafb_second_xres;
428 u.viamode.yres_sec = viafb_second_yres;
429 u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
430 u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
431 u.viamode.refresh_sec = viafb_refresh1;
432 u.viamode.bpp_sec = viafb_bpp1;
433 } else {
434 u.viamode.xres_sec = 0;
435 u.viamode.yres_sec = 0;
436 u.viamode.virtual_xres_sec = 0;
437 u.viamode.virtual_yres_sec = 0;
438 u.viamode.refresh_sec = 0;
439 u.viamode.bpp_sec = 0;
440 }
441 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
442 return -EFAULT;
443 break;
444 case VIAFB_GET_SAMM_INFO:
445 u.viasamm.samm_status = viafb_SAMM_ON;
446
447 if (viafb_SAMM_ON == 1) {
448 if (viafb_dual_fb) {
449 u.viasamm.size_prim = viaparinfo->fbmem_free;
450 u.viasamm.size_sec = viaparinfo1->fbmem_free;
451 } else {
452 if (viafb_second_size) {
453 u.viasamm.size_prim =
454 viaparinfo->fbmem_free -
455 viafb_second_size * 1024 * 1024;
456 u.viasamm.size_sec =
457 viafb_second_size * 1024 * 1024;
458 } else {
459 u.viasamm.size_prim =
460 viaparinfo->fbmem_free >> 1;
461 u.viasamm.size_sec =
462 (viaparinfo->fbmem_free >> 1);
463 }
464 }
465 u.viasamm.mem_base = viaparinfo->fbmem;
466 u.viasamm.offset_sec = viafb_second_offset;
467 } else {
468 u.viasamm.size_prim =
469 viaparinfo->memsize - viaparinfo->fbmem_used;
470 u.viasamm.size_sec = 0;
471 u.viasamm.mem_base = viaparinfo->fbmem;
472 u.viasamm.offset_sec = 0;
473 }
474
475 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
476 return -EFAULT;
477
478 break;
479 case VIAFB_TURN_ON_OUTPUT_DEVICE:
480 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
481 return -EFAULT;
482 if (gpu32 & CRT_Device)
483 via_set_state(VIA_CRT, VIA_STATE_ON);
484 if (gpu32 & DVI_Device)
485 viafb_dvi_enable();
486 if (gpu32 & LCD_Device)
487 viafb_lcd_enable();
488 break;
489 case VIAFB_TURN_OFF_OUTPUT_DEVICE:
490 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
491 return -EFAULT;
492 if (gpu32 & CRT_Device)
493 via_set_state(VIA_CRT, VIA_STATE_OFF);
494 if (gpu32 & DVI_Device)
495 viafb_dvi_disable();
496 if (gpu32 & LCD_Device)
497 viafb_lcd_disable();
498 break;
499 case VIAFB_GET_DEVICE:
500 u.active_dev.crt = viafb_CRT_ON;
501 u.active_dev.dvi = viafb_DVI_ON;
502 u.active_dev.lcd = viafb_LCD_ON;
503 u.active_dev.samm = viafb_SAMM_ON;
504 u.active_dev.primary_dev = viafb_primary_dev;
505
506 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
507 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
508 u.active_dev.lcd_mode = viafb_lcd_mode;
509
510 u.active_dev.xres = viafb_hotplug_Xres;
511 u.active_dev.yres = viafb_hotplug_Yres;
512
513 u.active_dev.xres1 = viafb_second_xres;
514 u.active_dev.yres1 = viafb_second_yres;
515
516 u.active_dev.bpp = viafb_bpp;
517 u.active_dev.bpp1 = viafb_bpp1;
518 u.active_dev.refresh = viafb_refresh;
519 u.active_dev.refresh1 = viafb_refresh1;
520
521 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
522 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
523 u.active_dev.bus_width = viafb_bus_width;
524
525 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
526 return -EFAULT;
527 break;
528
529 case VIAFB_GET_DRIVER_VERSION:
530 u.driver_version.iMajorNum = VERSION_MAJOR;
531 u.driver_version.iKernelNum = VERSION_KERNEL;
532 u.driver_version.iOSNum = VERSION_OS;
533 u.driver_version.iMinorNum = VERSION_MINOR;
534
535 if (copy_to_user(argp, &u.driver_version,
536 sizeof(u.driver_version)))
537 return -EFAULT;
538
539 break;
540
541 case VIAFB_GET_DEVICE_INFO:
542
543 retrieve_device_setting(&u.viafb_setting);
544
545 if (copy_to_user(argp, &u.viafb_setting,
546 sizeof(u.viafb_setting)))
547 return -EFAULT;
548
549 break;
550
551 case VIAFB_GET_DEVICE_SUPPORT:
552 viafb_get_device_support_state(&state_info);
553 if (put_user(state_info, argp))
554 return -EFAULT;
555 break;
556
557 case VIAFB_GET_DEVICE_CONNECT:
558 viafb_get_device_connect_state(&state_info);
559 if (put_user(state_info, argp))
560 return -EFAULT;
561 break;
562
563 case VIAFB_GET_PANEL_SUPPORT_EXPAND:
564 state_info =
565 viafb_lcd_get_support_expand_state(info->var.xres,
566 info->var.yres);
567 if (put_user(state_info, argp))
568 return -EFAULT;
569 break;
570
571 case VIAFB_GET_DRIVER_NAME:
572 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
573 return -EFAULT;
574 break;
575
576 case VIAFB_SET_GAMMA_LUT:
577 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
578 if (IS_ERR(viafb_gamma_table))
579 return PTR_ERR(viafb_gamma_table);
580 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
581 kfree(viafb_gamma_table);
582 break;
583
584 case VIAFB_GET_GAMMA_LUT:
585 viafb_gamma_table = kmalloc_array(256, sizeof(u32),
586 GFP_KERNEL);
587 if (!viafb_gamma_table)
588 return -ENOMEM;
589 viafb_get_gamma_table(viafb_gamma_table);
590 if (copy_to_user(argp, viafb_gamma_table,
591 256 * sizeof(u32))) {
592 kfree(viafb_gamma_table);
593 return -EFAULT;
594 }
595 kfree(viafb_gamma_table);
596 break;
597
598 case VIAFB_GET_GAMMA_SUPPORT_STATE:
599 viafb_get_gamma_support_state(viafb_bpp, &state_info);
600 if (put_user(state_info, argp))
601 return -EFAULT;
602 break;
603 case VIAFB_SYNC_SURFACE:
604 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
605 break;
606 case VIAFB_GET_DRIVER_CAPS:
607 break;
608
609 case VIAFB_GET_PANEL_MAX_SIZE:
610 if (copy_from_user(&u.panel_pos_size_para, argp,
611 sizeof(u.panel_pos_size_para)))
612 return -EFAULT;
613 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
614 if (copy_to_user(argp, &u.panel_pos_size_para,
615 sizeof(u.panel_pos_size_para)))
616 return -EFAULT;
617 break;
618 case VIAFB_GET_PANEL_MAX_POSITION:
619 if (copy_from_user(&u.panel_pos_size_para, argp,
620 sizeof(u.panel_pos_size_para)))
621 return -EFAULT;
622 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
623 if (copy_to_user(argp, &u.panel_pos_size_para,
624 sizeof(u.panel_pos_size_para)))
625 return -EFAULT;
626 break;
627
628 case VIAFB_GET_PANEL_POSITION:
629 if (copy_from_user(&u.panel_pos_size_para, argp,
630 sizeof(u.panel_pos_size_para)))
631 return -EFAULT;
632 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
633 if (copy_to_user(argp, &u.panel_pos_size_para,
634 sizeof(u.panel_pos_size_para)))
635 return -EFAULT;
636 break;
637 case VIAFB_GET_PANEL_SIZE:
638 if (copy_from_user(&u.panel_pos_size_para, argp,
639 sizeof(u.panel_pos_size_para)))
640 return -EFAULT;
641 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
642 if (copy_to_user(argp, &u.panel_pos_size_para,
643 sizeof(u.panel_pos_size_para)))
644 return -EFAULT;
645 break;
646
647 case VIAFB_SET_PANEL_POSITION:
648 if (copy_from_user(&u.panel_pos_size_para, argp,
649 sizeof(u.panel_pos_size_para)))
650 return -EFAULT;
651 break;
652 case VIAFB_SET_PANEL_SIZE:
653 if (copy_from_user(&u.panel_pos_size_para, argp,
654 sizeof(u.panel_pos_size_para)))
655 return -EFAULT;
656 break;
657
658 default:
659 return -EINVAL;
660 }
661
662 return 0;
663 }
664
665 static void viafb_fillrect(struct fb_info *info,
666 const struct fb_fillrect *rect)
667 {
668 struct viafb_par *viapar = info->par;
669 struct viafb_shared *shared = viapar->shared;
670 u32 fg_color;
671 u8 rop;
672
673 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
674 cfb_fillrect(info, rect);
675 return;
676 }
677
678 if (!rect->width || !rect->height)
679 return;
680
681 if (info->fix.visual == FB_VISUAL_TRUECOLOR)
682 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
683 else
684 fg_color = rect->color;
685
686 if (rect->rop == ROP_XOR)
687 rop = 0x5A;
688 else
689 rop = 0xF0;
690
691 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
692 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
693 rect->width, rect->height, info->var.bits_per_pixel,
694 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
695 NULL, 0, 0, 0, 0, fg_color, 0, rop))
696 cfb_fillrect(info, rect);
697 }
698
699 static void viafb_copyarea(struct fb_info *info,
700 const struct fb_copyarea *area)
701 {
702 struct viafb_par *viapar = info->par;
703 struct viafb_shared *shared = viapar->shared;
704
705 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
706 cfb_copyarea(info, area);
707 return;
708 }
709
710 if (!area->width || !area->height)
711 return;
712
713 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
714 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
715 area->width, area->height, info->var.bits_per_pixel,
716 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
717 NULL, viapar->vram_addr, info->fix.line_length,
718 area->sx, area->sy, 0, 0, 0))
719 cfb_copyarea(info, area);
720 }
721
722 static void viafb_imageblit(struct fb_info *info,
723 const struct fb_image *image)
724 {
725 struct viafb_par *viapar = info->par;
726 struct viafb_shared *shared = viapar->shared;
727 u32 fg_color = 0, bg_color = 0;
728 u8 op;
729
730 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
731 (image->depth != 1 && image->depth != viapar->depth)) {
732 cfb_imageblit(info, image);
733 return;
734 }
735
736 if (image->depth == 1) {
737 op = VIA_BITBLT_MONO;
738 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
739 fg_color =
740 ((u32 *)info->pseudo_palette)[image->fg_color];
741 bg_color =
742 ((u32 *)info->pseudo_palette)[image->bg_color];
743 } else {
744 fg_color = image->fg_color;
745 bg_color = image->bg_color;
746 }
747 } else
748 op = VIA_BITBLT_COLOR;
749
750 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
751 if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
752 image->width, image->height, info->var.bits_per_pixel,
753 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
754 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
755 cfb_imageblit(info, image);
756 }
757
758 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
759 {
760 struct viafb_par *viapar = info->par;
761 void __iomem *engine = viapar->shared->vdev->engine_mmio;
762 u32 temp, xx, yy, bg_color = 0, fg_color = 0,
763 chip_name = viapar->shared->chip_info.gfx_chip_name;
764 int i, j = 0, cur_size = 64;
765
766 if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
767 return -ENODEV;
768
769 /* LCD ouput does not support hw cursors (at least on VN896) */
770 if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
771 viafb_LCD_ON)
772 return -ENODEV;
773
774 viafb_show_hw_cursor(info, HW_Cursor_OFF);
775
776 if (cursor->set & FB_CUR_SETHOT) {
777 temp = (cursor->hot.x << 16) + cursor->hot.y;
778 writel(temp, engine + VIA_REG_CURSOR_ORG);
779 }
780
781 if (cursor->set & FB_CUR_SETPOS) {
782 yy = cursor->image.dy - info->var.yoffset;
783 xx = cursor->image.dx - info->var.xoffset;
784 temp = yy & 0xFFFF;
785 temp |= (xx << 16);
786 writel(temp, engine + VIA_REG_CURSOR_POS);
787 }
788
789 if (cursor->image.width <= 32 && cursor->image.height <= 32)
790 cur_size = 32;
791 else if (cursor->image.width <= 64 && cursor->image.height <= 64)
792 cur_size = 64;
793 else {
794 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
795 "%dx%d", cursor->image.width, cursor->image.height);
796 return -ENXIO;
797 }
798
799 if (cursor->set & FB_CUR_SETSIZE) {
800 temp = readl(engine + VIA_REG_CURSOR_MODE);
801 if (cur_size == 32)
802 temp |= 0x2;
803 else
804 temp &= ~0x2;
805
806 writel(temp, engine + VIA_REG_CURSOR_MODE);
807 }
808
809 if (cursor->set & FB_CUR_SETCMAP) {
810 fg_color = cursor->image.fg_color;
811 bg_color = cursor->image.bg_color;
812 if (chip_name == UNICHROME_CX700 ||
813 chip_name == UNICHROME_VX800 ||
814 chip_name == UNICHROME_VX855 ||
815 chip_name == UNICHROME_VX900) {
816 fg_color =
817 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
818 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
819 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
820 bg_color =
821 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
822 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
823 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
824 } else {
825 fg_color =
826 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
827 (info->cmap.green[fg_color] & 0xFF00) |
828 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
829 bg_color =
830 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
831 (info->cmap.green[bg_color] & 0xFF00) |
832 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
833 }
834
835 writel(bg_color, engine + VIA_REG_CURSOR_BG);
836 writel(fg_color, engine + VIA_REG_CURSOR_FG);
837 }
838
839 if (cursor->set & FB_CUR_SETSHAPE) {
840 struct {
841 u8 data[CURSOR_SIZE];
842 u32 bak[CURSOR_SIZE / 4];
843 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
844 int size = ((cursor->image.width + 7) >> 3) *
845 cursor->image.height;
846
847 if (!cr_data)
848 return -ENOMEM;
849
850 if (cur_size == 32) {
851 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
852 cr_data->bak[i] = 0x0;
853 cr_data->bak[i + 1] = 0xFFFFFFFF;
854 i += 1;
855 }
856 } else {
857 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
858 cr_data->bak[i] = 0x0;
859 cr_data->bak[i + 1] = 0x0;
860 cr_data->bak[i + 2] = 0xFFFFFFFF;
861 cr_data->bak[i + 3] = 0xFFFFFFFF;
862 i += 3;
863 }
864 }
865
866 switch (cursor->rop) {
867 case ROP_XOR:
868 for (i = 0; i < size; i++)
869 cr_data->data[i] = cursor->mask[i];
870 break;
871 case ROP_COPY:
872
873 for (i = 0; i < size; i++)
874 cr_data->data[i] = cursor->mask[i];
875 break;
876 default:
877 break;
878 }
879
880 if (cur_size == 32) {
881 for (i = 0; i < size; i++) {
882 cr_data->bak[j] = (u32) cr_data->data[i];
883 cr_data->bak[j + 1] = ~cr_data->bak[j];
884 j += 2;
885 }
886 } else {
887 for (i = 0; i < size; i++) {
888 cr_data->bak[j] = (u32) cr_data->data[i];
889 cr_data->bak[j + 1] = 0x0;
890 cr_data->bak[j + 2] = ~cr_data->bak[j];
891 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
892 j += 4;
893 }
894 }
895
896 memcpy_toio(viafbinfo->screen_base + viapar->shared->
897 cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
898 kfree(cr_data);
899 }
900
901 if (cursor->enable)
902 viafb_show_hw_cursor(info, HW_Cursor_ON);
903
904 return 0;
905 }
906
907 static int viafb_sync(struct fb_info *info)
908 {
909 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
910 viafb_wait_engine_idle(info);
911 return 0;
912 }
913
914 static int get_primary_device(void)
915 {
916 int primary_device = 0;
917 /* Rule: device on iga1 path are the primary device. */
918 if (viafb_SAMM_ON) {
919 if (viafb_CRT_ON) {
920 if (viaparinfo->shared->iga1_devices & VIA_CRT) {
921 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
922 primary_device = CRT_Device;
923 }
924 }
925 if (viafb_DVI_ON) {
926 if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
927 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
928 viaparinfo->
929 tmds_setting_info->iga_path);
930 primary_device = DVI_Device;
931 }
932 }
933 if (viafb_LCD_ON) {
934 if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
935 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
936 viaparinfo->
937 lvds_setting_info->iga_path);
938 primary_device = LCD_Device;
939 }
940 }
941 if (viafb_LCD2_ON) {
942 if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
943 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
944 viaparinfo->
945 lvds_setting_info2->iga_path);
946 primary_device = LCD2_Device;
947 }
948 }
949 }
950 return primary_device;
951 }
952
953 static void retrieve_device_setting(struct viafb_ioctl_setting
954 *setting_info)
955 {
956
957 /* get device status */
958 if (viafb_CRT_ON == 1)
959 setting_info->device_status = CRT_Device;
960 if (viafb_DVI_ON == 1)
961 setting_info->device_status |= DVI_Device;
962 if (viafb_LCD_ON == 1)
963 setting_info->device_status |= LCD_Device;
964 if (viafb_LCD2_ON == 1)
965 setting_info->device_status |= LCD2_Device;
966
967 setting_info->samm_status = viafb_SAMM_ON;
968 setting_info->primary_device = get_primary_device();
969
970 setting_info->first_dev_bpp = viafb_bpp;
971 setting_info->second_dev_bpp = viafb_bpp1;
972
973 setting_info->first_dev_refresh = viafb_refresh;
974 setting_info->second_dev_refresh = viafb_refresh1;
975
976 setting_info->first_dev_hor_res = viafb_hotplug_Xres;
977 setting_info->first_dev_ver_res = viafb_hotplug_Yres;
978 setting_info->second_dev_hor_res = viafb_second_xres;
979 setting_info->second_dev_ver_res = viafb_second_yres;
980
981 /* Get lcd attributes */
982 setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
983 setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
984 setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
985 }
986
987 static int __init parse_active_dev(void)
988 {
989 viafb_CRT_ON = STATE_OFF;
990 viafb_DVI_ON = STATE_OFF;
991 viafb_LCD_ON = STATE_OFF;
992 viafb_LCD2_ON = STATE_OFF;
993 /* 1. Modify the active status of devices. */
994 /* 2. Keep the order of devices, so we can set corresponding
995 IGA path to devices in SAMM case. */
996 /* Note: The previous of active_dev is primary device,
997 and the following is secondary device. */
998 if (!viafb_active_dev) {
999 if (machine_is_olpc()) { /* LCD only */
1000 viafb_LCD_ON = STATE_ON;
1001 viafb_SAMM_ON = STATE_OFF;
1002 } else {
1003 viafb_CRT_ON = STATE_ON;
1004 viafb_SAMM_ON = STATE_OFF;
1005 }
1006 } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1007 /* CRT+DVI */
1008 viafb_CRT_ON = STATE_ON;
1009 viafb_DVI_ON = STATE_ON;
1010 viafb_primary_dev = CRT_Device;
1011 } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1012 /* DVI+CRT */
1013 viafb_CRT_ON = STATE_ON;
1014 viafb_DVI_ON = STATE_ON;
1015 viafb_primary_dev = DVI_Device;
1016 } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1017 /* CRT+LCD */
1018 viafb_CRT_ON = STATE_ON;
1019 viafb_LCD_ON = STATE_ON;
1020 viafb_primary_dev = CRT_Device;
1021 } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1022 /* LCD+CRT */
1023 viafb_CRT_ON = STATE_ON;
1024 viafb_LCD_ON = STATE_ON;
1025 viafb_primary_dev = LCD_Device;
1026 } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1027 /* DVI+LCD */
1028 viafb_DVI_ON = STATE_ON;
1029 viafb_LCD_ON = STATE_ON;
1030 viafb_primary_dev = DVI_Device;
1031 } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1032 /* LCD+DVI */
1033 viafb_DVI_ON = STATE_ON;
1034 viafb_LCD_ON = STATE_ON;
1035 viafb_primary_dev = LCD_Device;
1036 } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1037 viafb_LCD_ON = STATE_ON;
1038 viafb_LCD2_ON = STATE_ON;
1039 viafb_primary_dev = LCD_Device;
1040 } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1041 viafb_LCD_ON = STATE_ON;
1042 viafb_LCD2_ON = STATE_ON;
1043 viafb_primary_dev = LCD2_Device;
1044 } else if (!strcmp(viafb_active_dev, "CRT")) {
1045 /* CRT only */
1046 viafb_CRT_ON = STATE_ON;
1047 viafb_SAMM_ON = STATE_OFF;
1048 } else if (!strcmp(viafb_active_dev, "DVI")) {
1049 /* DVI only */
1050 viafb_DVI_ON = STATE_ON;
1051 viafb_SAMM_ON = STATE_OFF;
1052 } else if (!strcmp(viafb_active_dev, "LCD")) {
1053 /* LCD only */
1054 viafb_LCD_ON = STATE_ON;
1055 viafb_SAMM_ON = STATE_OFF;
1056 } else
1057 return -EINVAL;
1058
1059 return 0;
1060 }
1061
1062 static int parse_port(char *opt_str, int *output_interface)
1063 {
1064 if (!strncmp(opt_str, "DVP0", 4))
1065 *output_interface = INTERFACE_DVP0;
1066 else if (!strncmp(opt_str, "DVP1", 4))
1067 *output_interface = INTERFACE_DVP1;
1068 else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1069 *output_interface = INTERFACE_DFP;
1070 else if (!strncmp(opt_str, "DFP_HIGH", 8))
1071 *output_interface = INTERFACE_DFP_HIGH;
1072 else if (!strncmp(opt_str, "DFP_LOW", 7))
1073 *output_interface = INTERFACE_DFP_LOW;
1074 else
1075 *output_interface = INTERFACE_NONE;
1076 return 0;
1077 }
1078
1079 static void parse_lcd_port(void)
1080 {
1081 parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1082 output_interface);
1083 /*Initialize to avoid unexpected behavior */
1084 viaparinfo->chip_info->lvds_chip_info2.output_interface =
1085 INTERFACE_NONE;
1086
1087 DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1088 viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1089 output_interface);
1090 }
1091
1092 static void parse_dvi_port(void)
1093 {
1094 parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1095 output_interface);
1096
1097 DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1098 viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1099 output_interface);
1100 }
1101
1102 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1103
1104 /*
1105 * The proc filesystem read/write function, a simple proc implement to
1106 * get/set the value of DPA DVP0, DVP0DataDriving, DVP0ClockDriving, DVP1,
1107 * DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1108 * CR9B, SR65, CR97, CR99
1109 */
1110 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1111 {
1112 u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1113 dvp0_data_dri =
1114 (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1115 (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1116 dvp0_clk_dri =
1117 (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1118 (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1119 dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1120 seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1121 return 0;
1122 }
1123
1124 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1125 {
1126 return single_open(file, viafb_dvp0_proc_show, NULL);
1127 }
1128
1129 static ssize_t viafb_dvp0_proc_write(struct file *file,
1130 const char __user *buffer, size_t count, loff_t *pos)
1131 {
1132 char buf[20], *value, *pbuf;
1133 u8 reg_val = 0;
1134 unsigned long length, i;
1135 if (count < 1)
1136 return -EINVAL;
1137 length = count > 20 ? 20 : count;
1138 if (copy_from_user(&buf[0], buffer, length))
1139 return -EFAULT;
1140 buf[length - 1] = '\0'; /*Ensure end string */
1141 pbuf = &buf[0];
1142 for (i = 0; i < 3; i++) {
1143 value = strsep(&pbuf, " ");
1144 if (value != NULL) {
1145 if (kstrtou8(value, 0, &reg_val) < 0)
1146 return -EINVAL;
1147 DEBUG_MSG(KERN_INFO "DVP0:reg_val[%lu]=:%x\n", i,
1148 reg_val);
1149 switch (i) {
1150 case 0:
1151 viafb_write_reg_mask(CR96, VIACR,
1152 reg_val, 0x0f);
1153 break;
1154 case 1:
1155 viafb_write_reg_mask(SR2A, VIASR,
1156 reg_val << 4, BIT5);
1157 viafb_write_reg_mask(SR1B, VIASR,
1158 reg_val << 1, BIT1);
1159 break;
1160 case 2:
1161 viafb_write_reg_mask(SR2A, VIASR,
1162 reg_val << 3, BIT4);
1163 viafb_write_reg_mask(SR1E, VIASR,
1164 reg_val << 2, BIT2);
1165 break;
1166 default:
1167 break;
1168 }
1169 } else {
1170 break;
1171 }
1172 }
1173 return count;
1174 }
1175
1176 static const struct proc_ops viafb_dvp0_proc_ops = {
1177 .proc_open = viafb_dvp0_proc_open,
1178 .proc_read = seq_read,
1179 .proc_lseek = seq_lseek,
1180 .proc_release = single_release,
1181 .proc_write = viafb_dvp0_proc_write,
1182 };
1183
1184 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1185 {
1186 u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1187 dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1188 dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1189 dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1190 seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1191 return 0;
1192 }
1193
1194 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1195 {
1196 return single_open(file, viafb_dvp1_proc_show, NULL);
1197 }
1198
1199 static ssize_t viafb_dvp1_proc_write(struct file *file,
1200 const char __user *buffer, size_t count, loff_t *pos)
1201 {
1202 char buf[20], *value, *pbuf;
1203 u8 reg_val = 0;
1204 unsigned long length, i;
1205 if (count < 1)
1206 return -EINVAL;
1207 length = count > 20 ? 20 : count;
1208 if (copy_from_user(&buf[0], buffer, length))
1209 return -EFAULT;
1210 buf[length - 1] = '\0'; /*Ensure end string */
1211 pbuf = &buf[0];
1212 for (i = 0; i < 3; i++) {
1213 value = strsep(&pbuf, " ");
1214 if (value != NULL) {
1215 if (kstrtou8(value, 0, &reg_val) < 0)
1216 return -EINVAL;
1217 switch (i) {
1218 case 0:
1219 viafb_write_reg_mask(CR9B, VIACR,
1220 reg_val, 0x0f);
1221 break;
1222 case 1:
1223 viafb_write_reg_mask(SR65, VIASR,
1224 reg_val << 2, 0x0c);
1225 break;
1226 case 2:
1227 viafb_write_reg_mask(SR65, VIASR,
1228 reg_val, 0x03);
1229 break;
1230 default:
1231 break;
1232 }
1233 } else {
1234 break;
1235 }
1236 }
1237 return count;
1238 }
1239
1240 static const struct proc_ops viafb_dvp1_proc_ops = {
1241 .proc_open = viafb_dvp1_proc_open,
1242 .proc_read = seq_read,
1243 .proc_lseek = seq_lseek,
1244 .proc_release = single_release,
1245 .proc_write = viafb_dvp1_proc_write,
1246 };
1247
1248 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1249 {
1250 u8 dfp_high = 0;
1251 dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1252 seq_printf(m, "%x\n", dfp_high);
1253 return 0;
1254 }
1255
1256 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1257 {
1258 return single_open(file, viafb_dfph_proc_show, NULL);
1259 }
1260
1261 static ssize_t viafb_dfph_proc_write(struct file *file,
1262 const char __user *buffer, size_t count, loff_t *pos)
1263 {
1264 int err;
1265 u8 reg_val;
1266 err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1267 if (err)
1268 return err;
1269
1270 viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1271 return count;
1272 }
1273
1274 static const struct proc_ops viafb_dfph_proc_ops = {
1275 .proc_open = viafb_dfph_proc_open,
1276 .proc_read = seq_read,
1277 .proc_lseek = seq_lseek,
1278 .proc_release = single_release,
1279 .proc_write = viafb_dfph_proc_write,
1280 };
1281
1282 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1283 {
1284 u8 dfp_low = 0;
1285 dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1286 seq_printf(m, "%x\n", dfp_low);
1287 return 0;
1288 }
1289
1290 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1291 {
1292 return single_open(file, viafb_dfpl_proc_show, NULL);
1293 }
1294
1295 static ssize_t viafb_dfpl_proc_write(struct file *file,
1296 const char __user *buffer, size_t count, loff_t *pos)
1297 {
1298 int err;
1299 u8 reg_val;
1300 err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1301 if (err)
1302 return err;
1303
1304 viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1305 return count;
1306 }
1307
1308 static const struct proc_ops viafb_dfpl_proc_ops = {
1309 .proc_open = viafb_dfpl_proc_open,
1310 .proc_read = seq_read,
1311 .proc_lseek = seq_lseek,
1312 .proc_release = single_release,
1313 .proc_write = viafb_dfpl_proc_write,
1314 };
1315
1316 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1317 {
1318 u8 vt1636_08 = 0, vt1636_09 = 0;
1319 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1320 case VT1636_LVDS:
1321 vt1636_08 =
1322 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1323 &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1324 vt1636_09 =
1325 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1326 &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1327 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1328 break;
1329 default:
1330 break;
1331 }
1332 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1333 case VT1636_LVDS:
1334 vt1636_08 =
1335 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1336 &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1337 vt1636_09 =
1338 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1339 &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1340 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1341 break;
1342 default:
1343 break;
1344 }
1345 return 0;
1346 }
1347
1348 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1349 {
1350 return single_open(file, viafb_vt1636_proc_show, NULL);
1351 }
1352
1353 static ssize_t viafb_vt1636_proc_write(struct file *file,
1354 const char __user *buffer, size_t count, loff_t *pos)
1355 {
1356 char buf[30], *value, *pbuf;
1357 struct IODATA reg_val;
1358 unsigned long length, i;
1359 if (count < 1)
1360 return -EINVAL;
1361 length = count > 30 ? 30 : count;
1362 if (copy_from_user(&buf[0], buffer, length))
1363 return -EFAULT;
1364 buf[length - 1] = '\0'; /*Ensure end string */
1365 pbuf = &buf[0];
1366 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1367 case VT1636_LVDS:
1368 for (i = 0; i < 2; i++) {
1369 value = strsep(&pbuf, " ");
1370 if (value != NULL) {
1371 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1372 return -EINVAL;
1373 switch (i) {
1374 case 0:
1375 reg_val.Index = 0x08;
1376 reg_val.Mask = 0x0f;
1377 viafb_gpio_i2c_write_mask_lvds
1378 (viaparinfo->lvds_setting_info,
1379 &viaparinfo->
1380 chip_info->lvds_chip_info,
1381 reg_val);
1382 break;
1383 case 1:
1384 reg_val.Index = 0x09;
1385 reg_val.Mask = 0x1f;
1386 viafb_gpio_i2c_write_mask_lvds
1387 (viaparinfo->lvds_setting_info,
1388 &viaparinfo->
1389 chip_info->lvds_chip_info,
1390 reg_val);
1391 break;
1392 default:
1393 break;
1394 }
1395 } else {
1396 break;
1397 }
1398 }
1399 break;
1400 default:
1401 break;
1402 }
1403 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1404 case VT1636_LVDS:
1405 for (i = 0; i < 2; i++) {
1406 value = strsep(&pbuf, " ");
1407 if (value != NULL) {
1408 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1409 return -EINVAL;
1410 switch (i) {
1411 case 0:
1412 reg_val.Index = 0x08;
1413 reg_val.Mask = 0x0f;
1414 viafb_gpio_i2c_write_mask_lvds
1415 (viaparinfo->lvds_setting_info2,
1416 &viaparinfo->
1417 chip_info->lvds_chip_info2,
1418 reg_val);
1419 break;
1420 case 1:
1421 reg_val.Index = 0x09;
1422 reg_val.Mask = 0x1f;
1423 viafb_gpio_i2c_write_mask_lvds
1424 (viaparinfo->lvds_setting_info2,
1425 &viaparinfo->
1426 chip_info->lvds_chip_info2,
1427 reg_val);
1428 break;
1429 default:
1430 break;
1431 }
1432 } else {
1433 break;
1434 }
1435 }
1436 break;
1437 default:
1438 break;
1439 }
1440 return count;
1441 }
1442
1443 static const struct proc_ops viafb_vt1636_proc_ops = {
1444 .proc_open = viafb_vt1636_proc_open,
1445 .proc_read = seq_read,
1446 .proc_lseek = seq_lseek,
1447 .proc_release = single_release,
1448 .proc_write = viafb_vt1636_proc_write,
1449 };
1450
1451 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1452
1453 static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1454 {
1455 via_odev_to_seq(m, supported_odev_map[
1456 viaparinfo->shared->chip_info.gfx_chip_name]);
1457 return 0;
1458 }
1459
1460 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1461 {
1462 char buf[64], *ptr = buf;
1463 u32 devices;
1464 bool add, sub;
1465
1466 if (count < 1 || count > 63)
1467 return -EINVAL;
1468 if (copy_from_user(&buf[0], buffer, count))
1469 return -EFAULT;
1470 buf[count] = '\0';
1471 add = buf[0] == '+';
1472 sub = buf[0] == '-';
1473 if (add || sub)
1474 ptr++;
1475 devices = via_parse_odev(ptr, &ptr);
1476 if (*ptr == '\n')
1477 ptr++;
1478 if (*ptr != 0)
1479 return -EINVAL;
1480 if (add)
1481 *odev |= devices;
1482 else if (sub)
1483 *odev &= ~devices;
1484 else
1485 *odev = devices;
1486 return count;
1487 }
1488
1489 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1490 {
1491 via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1492 return 0;
1493 }
1494
1495 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1496 {
1497 return single_open(file, viafb_iga1_odev_proc_show, NULL);
1498 }
1499
1500 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1501 const char __user *buffer, size_t count, loff_t *pos)
1502 {
1503 u32 dev_on, dev_off, dev_old, dev_new;
1504 ssize_t res;
1505
1506 dev_old = dev_new = viaparinfo->shared->iga1_devices;
1507 res = odev_update(buffer, count, &dev_new);
1508 if (res != count)
1509 return res;
1510 dev_off = dev_old & ~dev_new;
1511 dev_on = dev_new & ~dev_old;
1512 viaparinfo->shared->iga1_devices = dev_new;
1513 viaparinfo->shared->iga2_devices &= ~dev_new;
1514 via_set_state(dev_off, VIA_STATE_OFF);
1515 via_set_source(dev_new, IGA1);
1516 via_set_state(dev_on, VIA_STATE_ON);
1517 return res;
1518 }
1519
1520 static const struct proc_ops viafb_iga1_odev_proc_ops = {
1521 .proc_open = viafb_iga1_odev_proc_open,
1522 .proc_read = seq_read,
1523 .proc_lseek = seq_lseek,
1524 .proc_release = single_release,
1525 .proc_write = viafb_iga1_odev_proc_write,
1526 };
1527
1528 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1529 {
1530 via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1531 return 0;
1532 }
1533
1534 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1535 {
1536 return single_open(file, viafb_iga2_odev_proc_show, NULL);
1537 }
1538
1539 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1540 const char __user *buffer, size_t count, loff_t *pos)
1541 {
1542 u32 dev_on, dev_off, dev_old, dev_new;
1543 ssize_t res;
1544
1545 dev_old = dev_new = viaparinfo->shared->iga2_devices;
1546 res = odev_update(buffer, count, &dev_new);
1547 if (res != count)
1548 return res;
1549 dev_off = dev_old & ~dev_new;
1550 dev_on = dev_new & ~dev_old;
1551 viaparinfo->shared->iga2_devices = dev_new;
1552 viaparinfo->shared->iga1_devices &= ~dev_new;
1553 via_set_state(dev_off, VIA_STATE_OFF);
1554 via_set_source(dev_new, IGA2);
1555 via_set_state(dev_on, VIA_STATE_ON);
1556 return res;
1557 }
1558
1559 static const struct proc_ops viafb_iga2_odev_proc_ops = {
1560 .proc_open = viafb_iga2_odev_proc_open,
1561 .proc_read = seq_read,
1562 .proc_lseek = seq_lseek,
1563 .proc_release = single_release,
1564 .proc_write = viafb_iga2_odev_proc_write,
1565 };
1566
1567 #define IS_VT1636(lvds_chip) ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1568 static void viafb_init_proc(struct viafb_shared *shared)
1569 {
1570 struct proc_dir_entry *iga1_entry, *iga2_entry,
1571 *viafb_entry = proc_mkdir("viafb", NULL);
1572
1573 shared->proc_entry = viafb_entry;
1574 if (viafb_entry) {
1575 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1576 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_ops);
1577 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_ops);
1578 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_ops);
1579 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_ops);
1580 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1581 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1582 proc_create("vt1636", 0, viafb_entry,
1583 &viafb_vt1636_proc_ops);
1584 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1585
1586 proc_create_single("supported_output_devices", 0, viafb_entry,
1587 viafb_sup_odev_proc_show);
1588 iga1_entry = proc_mkdir("iga1", viafb_entry);
1589 shared->iga1_proc_entry = iga1_entry;
1590 proc_create("output_devices", 0, iga1_entry,
1591 &viafb_iga1_odev_proc_ops);
1592 iga2_entry = proc_mkdir("iga2", viafb_entry);
1593 shared->iga2_proc_entry = iga2_entry;
1594 proc_create("output_devices", 0, iga2_entry,
1595 &viafb_iga2_odev_proc_ops);
1596 }
1597 }
1598 static void viafb_remove_proc(struct viafb_shared *shared)
1599 {
1600 struct proc_dir_entry *viafb_entry = shared->proc_entry;
1601
1602 if (!viafb_entry)
1603 return;
1604
1605 remove_proc_entry("output_devices", shared->iga2_proc_entry);
1606 remove_proc_entry("iga2", viafb_entry);
1607 remove_proc_entry("output_devices", shared->iga1_proc_entry);
1608 remove_proc_entry("iga1", viafb_entry);
1609 remove_proc_entry("supported_output_devices", viafb_entry);
1610
1611 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1612 remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1613 remove_proc_entry("dvp1", viafb_entry);
1614 remove_proc_entry("dfph", viafb_entry);
1615 remove_proc_entry("dfpl", viafb_entry);
1616 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1617 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1618 remove_proc_entry("vt1636", viafb_entry);
1619 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1620
1621 remove_proc_entry("viafb", NULL);
1622 }
1623 #undef IS_VT1636
1624
1625 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1626 {
1627 const struct fb_videomode *mode = NULL;
1628 char *ptr;
1629
1630 if (!str) {
1631 if (devices == VIA_CRT)
1632 mode = via_aux_get_preferred_mode(
1633 viaparinfo->shared->i2c_26);
1634 else if (devices == VIA_DVP1)
1635 mode = via_aux_get_preferred_mode(
1636 viaparinfo->shared->i2c_31);
1637
1638 if (mode) {
1639 *xres = mode->xres;
1640 *yres = mode->yres;
1641 } else if (machine_is_olpc()) {
1642 *xres = 1200;
1643 *yres = 900;
1644 } else {
1645 *xres = 640;
1646 *yres = 480;
1647 }
1648 return 0;
1649 }
1650
1651 *xres = simple_strtoul(str, &ptr, 10);
1652 if (ptr[0] != 'x')
1653 return -EINVAL;
1654
1655 *yres = simple_strtoul(&ptr[1], &ptr, 10);
1656 if (ptr[0])
1657 return -EINVAL;
1658
1659 return 0;
1660 }
1661
1662
1663 #ifdef CONFIG_PM
1664 static int viafb_suspend(void *unused)
1665 {
1666 console_lock();
1667 fb_set_suspend(viafbinfo, 1);
1668 viafb_sync(viafbinfo);
1669 console_unlock();
1670
1671 return 0;
1672 }
1673
1674 static int viafb_resume(void *unused)
1675 {
1676 console_lock();
1677 if (viaparinfo->shared->vdev->engine_mmio)
1678 viafb_reset_engine(viaparinfo);
1679 viafb_set_par(viafbinfo);
1680 if (viafb_dual_fb)
1681 viafb_set_par(viafbinfo1);
1682 fb_set_suspend(viafbinfo, 0);
1683
1684 console_unlock();
1685 return 0;
1686 }
1687
1688 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1689 .suspend = viafb_suspend,
1690 .resume = viafb_resume
1691 };
1692
1693 #endif
1694
1695 static void i2c_bus_probe(struct viafb_shared *shared)
1696 {
1697 /* should be always CRT */
1698 printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1699 shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1700
1701 /* seems to be usually DVP1 */
1702 printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1703 shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1704
1705 /* FIXME: what is this? */
1706 if (!machine_is_olpc()) {
1707 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1708 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1709 }
1710
1711 printk(KERN_INFO "viafb: Finished I2C bus probing");
1712 }
1713
1714 static void i2c_bus_free(struct viafb_shared *shared)
1715 {
1716 via_aux_free(shared->i2c_26);
1717 via_aux_free(shared->i2c_31);
1718 via_aux_free(shared->i2c_2C);
1719 }
1720
1721 int via_fb_pci_probe(struct viafb_dev *vdev)
1722 {
1723 u32 default_xres, default_yres;
1724 struct fb_var_screeninfo default_var;
1725 int rc;
1726 u32 viafb_par_length;
1727
1728 DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1729 memset(&default_var, 0, sizeof(default_var));
1730 viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1731
1732 /* Allocate fb_info and ***_par here, also including some other needed
1733 * variables
1734 */
1735 viafbinfo = framebuffer_alloc(viafb_par_length +
1736 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1737 &vdev->pdev->dev);
1738 if (!viafbinfo)
1739 return -ENOMEM;
1740
1741 viaparinfo = (struct viafb_par *)viafbinfo->par;
1742 viaparinfo->shared = viafbinfo->par + viafb_par_length;
1743 viaparinfo->shared->vdev = vdev;
1744 viaparinfo->vram_addr = 0;
1745 viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1746 viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1747 viaparinfo->lvds_setting_info2 =
1748 &viaparinfo->shared->lvds_setting_info2;
1749 viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1750
1751 i2c_bus_probe(viaparinfo->shared);
1752 if (viafb_dual_fb)
1753 viafb_SAMM_ON = 1;
1754 parse_lcd_port();
1755 parse_dvi_port();
1756
1757 viafb_init_chip_info(vdev->chip_type);
1758 /*
1759 * The framebuffer will have been successfully mapped by
1760 * the core (or we'd not be here), but we still need to
1761 * set up our own accounting.
1762 */
1763 viaparinfo->fbmem = vdev->fbmem_start;
1764 viaparinfo->memsize = vdev->fbmem_len;
1765 viaparinfo->fbmem_free = viaparinfo->memsize;
1766 viaparinfo->fbmem_used = 0;
1767 viafbinfo->screen_base = vdev->fbmem;
1768
1769 viafbinfo->fix.mmio_start = vdev->engine_start;
1770 viafbinfo->fix.mmio_len = vdev->engine_len;
1771 viafbinfo->node = 0;
1772 viafbinfo->fbops = &viafb_ops;
1773 viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1774
1775 viafbinfo->pseudo_palette = pseudo_pal;
1776 if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1777 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1778 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT;
1779 default_var.accel_flags = FB_ACCELF_TEXT;
1780 } else {
1781 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1782 default_var.accel_flags = 0;
1783 }
1784
1785 if (viafb_second_size && (viafb_second_size < 8)) {
1786 viafb_second_offset = viaparinfo->fbmem_free -
1787 viafb_second_size * 1024 * 1024;
1788 } else {
1789 viafb_second_size = 8;
1790 viafb_second_offset = viaparinfo->fbmem_free -
1791 viafb_second_size * 1024 * 1024;
1792 }
1793
1794 parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1795 &default_xres, &default_yres);
1796 if (viafb_SAMM_ON == 1)
1797 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1798 &viafb_second_xres, &viafb_second_yres);
1799
1800 default_var.xres = default_xres;
1801 default_var.yres = default_yres;
1802 default_var.xres_virtual = default_xres;
1803 default_var.yres_virtual = default_yres;
1804 default_var.bits_per_pixel = viafb_bpp;
1805 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1806 default_var.xres, default_var.yres, viafb_refresh));
1807 viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1808 viafbinfo->var = default_var;
1809
1810 if (viafb_dual_fb) {
1811 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1812 &vdev->pdev->dev);
1813 if (!viafbinfo1) {
1814 rc = -ENOMEM;
1815 goto out_fb_release;
1816 }
1817 viaparinfo1 = viafbinfo1->par;
1818 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1819 viaparinfo1->vram_addr = viafb_second_offset;
1820 viaparinfo1->memsize = viaparinfo->memsize -
1821 viafb_second_offset;
1822 viaparinfo->memsize = viafb_second_offset;
1823 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1824
1825 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1826 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1827 viaparinfo1->fbmem_used;
1828 viaparinfo->fbmem_free = viaparinfo->memsize;
1829 viaparinfo->fbmem_used = 0;
1830
1831 viaparinfo->iga_path = IGA1;
1832 viaparinfo1->iga_path = IGA2;
1833 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1834 viafbinfo1->par = viaparinfo1;
1835 viafbinfo1->screen_base = viafbinfo->screen_base +
1836 viafb_second_offset;
1837
1838 default_var.xres = viafb_second_xres;
1839 default_var.yres = viafb_second_yres;
1840 default_var.xres_virtual = viafb_second_xres;
1841 default_var.yres_virtual = viafb_second_yres;
1842 default_var.bits_per_pixel = viafb_bpp1;
1843 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1844 default_var.xres, default_var.yres, viafb_refresh1));
1845
1846 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1847 viafb_check_var(&default_var, viafbinfo1);
1848 viafbinfo1->var = default_var;
1849 viafb_update_fix(viafbinfo1);
1850 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1851 &viafbinfo1->fix);
1852 }
1853
1854 viafb_check_var(&viafbinfo->var, viafbinfo);
1855 viafb_update_fix(viafbinfo);
1856 viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1857 &viafbinfo->fix);
1858 default_var.activate = FB_ACTIVATE_NOW;
1859 rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1860 if (rc)
1861 goto out_fb1_release;
1862
1863 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1864 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1865 rc = register_framebuffer(viafbinfo1);
1866 if (rc)
1867 goto out_dealloc_cmap;
1868 }
1869 rc = register_framebuffer(viafbinfo);
1870 if (rc)
1871 goto out_fb1_unreg_lcd_cle266;
1872
1873 if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1874 || (viaparinfo->chip_info->gfx_chip_name !=
1875 UNICHROME_CLE266))) {
1876 rc = register_framebuffer(viafbinfo1);
1877 if (rc)
1878 goto out_fb_unreg;
1879 }
1880 DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1881 viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1882 default_var.yres, default_var.bits_per_pixel);
1883
1884 viafb_init_proc(viaparinfo->shared);
1885 viafb_init_dac(IGA2);
1886
1887 #ifdef CONFIG_PM
1888 viafb_pm_register(&viafb_fb_pm_hooks);
1889 #endif
1890 return 0;
1891
1892 out_fb_unreg:
1893 unregister_framebuffer(viafbinfo);
1894 out_fb1_unreg_lcd_cle266:
1895 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1896 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1897 unregister_framebuffer(viafbinfo1);
1898 out_dealloc_cmap:
1899 fb_dealloc_cmap(&viafbinfo->cmap);
1900 out_fb1_release:
1901 framebuffer_release(viafbinfo1);
1902 out_fb_release:
1903 i2c_bus_free(viaparinfo->shared);
1904 framebuffer_release(viafbinfo);
1905 return rc;
1906 }
1907
1908 void via_fb_pci_remove(struct pci_dev *pdev)
1909 {
1910 DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1911 fb_dealloc_cmap(&viafbinfo->cmap);
1912 unregister_framebuffer(viafbinfo);
1913 if (viafb_dual_fb)
1914 unregister_framebuffer(viafbinfo1);
1915 viafb_remove_proc(viaparinfo->shared);
1916 i2c_bus_free(viaparinfo->shared);
1917 framebuffer_release(viafbinfo);
1918 if (viafb_dual_fb)
1919 framebuffer_release(viafbinfo1);
1920 }
1921
1922 #ifndef MODULE
1923 static int __init viafb_setup(void)
1924 {
1925 char *this_opt;
1926 char *options;
1927
1928 DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1929
1930 if (fb_get_options("viafb", &options))
1931 return -ENODEV;
1932
1933 if (!options || !*options)
1934 return 0;
1935
1936 while ((this_opt = strsep(&options, ",")) != NULL) {
1937 if (!*this_opt)
1938 continue;
1939
1940 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1941 viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1942 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1943 viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1944 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1945 if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1946 return -EINVAL;
1947 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1948 if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1949 return -EINVAL;
1950 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1951 if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1952 return -EINVAL;
1953 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1954 if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1955 return -EINVAL;
1956 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1957 if (kstrtoint(this_opt + 21, 0,
1958 &viafb_lcd_dsp_method) < 0)
1959 return -EINVAL;
1960 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1961 if (kstrtoint(this_opt + 19, 0,
1962 &viafb_lcd_panel_id) < 0)
1963 return -EINVAL;
1964 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1965 if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1966 return -EINVAL;
1967 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1968 if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1969 return -EINVAL;
1970 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1971 viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1972 } else if (!strncmp(this_opt,
1973 "viafb_display_hardware_layout=", 30)) {
1974 if (kstrtoint(this_opt + 30, 0,
1975 &viafb_display_hardware_layout) < 0)
1976 return -EINVAL;
1977 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
1978 if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
1979 return -EINVAL;
1980 } else if (!strncmp(this_opt,
1981 "viafb_platform_epia_dvi=", 24)) {
1982 if (kstrtoint(this_opt + 24, 0,
1983 &viafb_platform_epia_dvi) < 0)
1984 return -EINVAL;
1985 } else if (!strncmp(this_opt,
1986 "viafb_device_lcd_dualedge=", 26)) {
1987 if (kstrtoint(this_opt + 26, 0,
1988 &viafb_device_lcd_dualedge) < 0)
1989 return -EINVAL;
1990 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
1991 if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
1992 return -EINVAL;
1993 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
1994 if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
1995 return -EINVAL;
1996 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
1997 viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
1998 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
1999 viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2000 }
2001 }
2002 return 0;
2003 }
2004 #endif
2005
2006 /*
2007 * These are called out of via-core for now.
2008 */
2009 int __init viafb_init(void)
2010 {
2011 u32 dummy_x, dummy_y;
2012 int r = 0;
2013
2014 if (machine_is_olpc())
2015 /* Apply XO-1.5-specific configuration. */
2016 viafb_lcd_panel_id = 23;
2017
2018 #ifndef MODULE
2019 r = viafb_setup();
2020 if (r < 0)
2021 return r;
2022 #endif
2023 if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2024 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2025 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2026 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2027 || viafb_bpp < 0 || viafb_bpp > 32
2028 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2029 || parse_active_dev())
2030 return -EINVAL;
2031
2032 printk(KERN_INFO
2033 "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2034 VERSION_MAJOR, VERSION_MINOR);
2035 return r;
2036 }
2037
2038 void __exit viafb_exit(void)
2039 {
2040 DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2041 }
2042
2043 static struct fb_ops viafb_ops = {
2044 .owner = THIS_MODULE,
2045 .fb_open = viafb_open,
2046 .fb_release = viafb_release,
2047 .fb_check_var = viafb_check_var,
2048 .fb_set_par = viafb_set_par,
2049 .fb_setcolreg = viafb_setcolreg,
2050 .fb_pan_display = viafb_pan_display,
2051 .fb_blank = viafb_blank,
2052 .fb_fillrect = viafb_fillrect,
2053 .fb_copyarea = viafb_copyarea,
2054 .fb_imageblit = viafb_imageblit,
2055 .fb_cursor = viafb_cursor,
2056 .fb_ioctl = viafb_ioctl,
2057 .fb_sync = viafb_sync,
2058 };
2059
2060
2061 #ifdef MODULE
2062 module_param(viafb_mode, charp, S_IRUSR);
2063 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2064
2065 module_param(viafb_mode1, charp, S_IRUSR);
2066 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2067
2068 module_param(viafb_bpp, int, S_IRUSR);
2069 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2070
2071 module_param(viafb_bpp1, int, S_IRUSR);
2072 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2073
2074 module_param(viafb_refresh, int, S_IRUSR);
2075 MODULE_PARM_DESC(viafb_refresh,
2076 "Set CRT viafb_refresh rate (default = 60)");
2077
2078 module_param(viafb_refresh1, int, S_IRUSR);
2079 MODULE_PARM_DESC(viafb_refresh1,
2080 "Set CRT refresh rate (default = 60)");
2081
2082 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2083 MODULE_PARM_DESC(viafb_lcd_panel_id,
2084 "Set Flat Panel type(Default=1024x768)");
2085
2086 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2087 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2088 "Set Flat Panel display scaling method.(Default=Expansion)");
2089
2090 module_param(viafb_SAMM_ON, int, S_IRUSR);
2091 MODULE_PARM_DESC(viafb_SAMM_ON,
2092 "Turn on/off flag of SAMM(Default=OFF)");
2093
2094 module_param(viafb_accel, int, S_IRUSR);
2095 MODULE_PARM_DESC(viafb_accel,
2096 "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2097
2098 module_param(viafb_active_dev, charp, S_IRUSR);
2099 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2100
2101 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2102 MODULE_PARM_DESC(viafb_display_hardware_layout,
2103 "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2104
2105 module_param(viafb_second_size, int, S_IRUSR);
2106 MODULE_PARM_DESC(viafb_second_size,
2107 "Set secondary device memory size");
2108
2109 module_param(viafb_dual_fb, int, S_IRUSR);
2110 MODULE_PARM_DESC(viafb_dual_fb,
2111 "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2112
2113 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2114 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2115 "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2116
2117 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2118 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2119 "Turn on/off flag of dual edge panel.(Default = OFF)");
2120
2121 module_param(viafb_bus_width, int, S_IRUSR);
2122 MODULE_PARM_DESC(viafb_bus_width,
2123 "Set bus width of panel.(Default = 12)");
2124
2125 module_param(viafb_lcd_mode, int, S_IRUSR);
2126 MODULE_PARM_DESC(viafb_lcd_mode,
2127 "Set Flat Panel mode(Default=OPENLDI)");
2128
2129 module_param(viafb_lcd_port, charp, S_IRUSR);
2130 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2131
2132 module_param(viafb_dvi_port, charp, S_IRUSR);
2133 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2134
2135 MODULE_LICENSE("GPL");
2136 #endif
Linux with added FPC-III support