1 // SPDX-License-Identifier: GPL-2.0-or-later
3 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
4 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
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>
19 static char *viafb_name = "Via";
20 static u32 pseudo_pal[17];
23 static char *viafb_mode;
24 static char *viafb_mode1;
25 static int viafb_bpp = 32;
26 static int viafb_bpp1 = 32;
28 static unsigned int viafb_second_offset;
29 static int viafb_second_size;
31 static int viafb_accel = 1;
33 /* Added for specifying active devices.*/
34 static char *viafb_active_dev;
36 /*Added for specify lcd output port*/
37 static char *viafb_lcd_port = "";
38 static char *viafb_dvi_port = "";
40 static void retrieve_device_setting(struct viafb_ioctl_setting
42 static int viafb_pan_display(struct fb_var_screeninfo *var,
43 struct fb_info *info);
45 static struct fb_ops viafb_ops;
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
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
58 [UNICHROME_K800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
60 [UNICHROME_PM800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
62 [UNICHROME_CN700] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
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,
74 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
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;
86 var->bits_per_pixel = 8;
88 var->green.offset = 0;
91 var->green.length = 8;
95 var->bits_per_pixel = 16;
97 var->green.offset = 5;
100 var->green.length = 5;
101 var->blue.length = 5;
104 var->bits_per_pixel = 16;
105 var->red.offset = 11;
106 var->green.offset = 5;
107 var->blue.offset = 0;
109 var->green.length = 6;
110 var->blue.length = 5;
113 var->bits_per_pixel = 32;
114 var->red.offset = 16;
115 var->green.offset = 8;
116 var->blue.offset = 0;
118 var->green.length = 8;
119 var->blue.length = 8;
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;
133 static void viafb_update_fix(struct fb_info *info)
135 u32 bpp = info->var.bits_per_pixel;
138 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
139 info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
143 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
144 struct viafb_par *viaparinfo)
146 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
147 strcpy(fix->id, viafb_name);
149 fix->smem_start = viaparinfo->fbmem;
150 fix->smem_len = viaparinfo->fbmem_free;
152 fix->type = FB_TYPE_PACKED_PIXELS;
154 fix->visual = FB_VISUAL_TRUECOLOR;
156 fix->xpanstep = fix->ywrapstep = 0;
159 /* Just tell the accel name */
160 viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
162 static int viafb_open(struct fb_info *info, int user)
164 DEBUG_MSG(KERN_INFO "viafb_open!\n");
168 static int viafb_release(struct fb_info *info, int user)
170 DEBUG_MSG(KERN_INFO "viafb_release!\n");
174 static inline int get_var_refresh(struct fb_var_screeninfo *var)
178 htotal = var->left_margin + var->xres + var->right_margin
180 vtotal = var->upper_margin + var->yres + var->lower_margin
182 return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
185 static int viafb_check_var(struct fb_var_screeninfo *var,
186 struct fb_info *info)
189 struct viafb_par *ppar = info->par;
192 DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
194 /* HW neither support interlacte nor double-scaned mode */
195 if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
198 /* the refresh rate is not important here, as we only want to know
199 * whether the resolution exists
201 if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
203 "viafb: Mode %dx%dx%d not supported!!\n",
204 var->xres, var->yres, var->bits_per_pixel);
208 depth = fb_get_color_depth(var, &info->fix);
210 depth = var->bits_per_pixel;
212 if (depth < 0 || depth > 32)
216 else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
218 else if (depth == 30)
222 else if (depth <= 16)
227 viafb_fill_var_color_info(var, depth);
228 if (var->xres_virtual < var->xres)
229 var->xres_virtual = var->xres;
231 line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
233 if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
236 /* Based on var passed in to calculate the refresh,
237 * because our driver use some modes special.
239 refresh = viafb_get_refresh(var->xres, var->yres,
240 get_var_refresh(var));
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;
252 static int viafb_set_par(struct fb_info *info)
254 struct viafb_par *viapar = info->par;
256 DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
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);
264 viafb_update_device_setting(viafbinfo1->var.xres,
265 viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
267 } else if (viafb_SAMM_ON == 1) {
269 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
270 viafb_second_xres, viafb_second_yres, viafb_bpp1);
272 viafb_update_device_setting(viafb_second_xres,
273 viafb_second_yres, viafb_bpp1, 1);
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;
281 viafb_bpp = info->var.bits_per_pixel;
282 viafb_refresh = refresh;
285 if (info->var.accel_flags & FB_ACCELF_TEXT)
286 info->flags &= ~FBINFO_HWACCEL_DISABLED;
288 info->flags |= FBINFO_HWACCEL_DISABLED;
290 viafb_pan_display(&info->var, info);
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)
299 struct viafb_par *viapar = info->par;
302 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
306 if (!viafb_dual_fb || viapar->iga_path == IGA1)
307 viafb_set_primary_color_register(regno, red >> 8,
308 green >> 8, blue >> 8);
310 if (!viafb_dual_fb || viapar->iga_path == IGA2)
311 viafb_set_secondary_color_register(regno, red >> 8,
312 green >> 8, blue >> 8);
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;
329 static int viafb_pan_display(struct fb_var_screeninfo *var,
330 struct fb_info *info)
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;
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);
344 via_set_secondary_address(vram_addr);
349 static int viafb_blank(int blank_mode, struct fb_info *info)
351 DEBUG_MSG(KERN_INFO "viafb_blank!\n");
352 /* clear DPMS setting */
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);
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);
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);
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);
380 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
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;
392 u32 *viafb_gamma_table;
393 char driver_name[] = "viafb";
395 u32 __user *argp = (u32 __user *) arg;
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));
403 case VIAFB_GET_CHIP_INFO:
404 if (copy_to_user(argp, viaparinfo->chip_info,
405 sizeof(struct chip_information)))
408 case VIAFB_GET_INFO_SIZE:
409 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
411 return viafb_ioctl_get_viafb_info(arg);
413 return put_user(viafb_ioctl_hotplug(info->var.xres,
415 info->var.bits_per_pixel), argp);
416 case VIAFB_SET_HOTPLUG_FLAG:
417 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
419 viafb_hotplug = (gpu32) ? 1 : 0;
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;
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;
441 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
444 case VIAFB_GET_SAMM_INFO:
445 u.viasamm.samm_status = viafb_SAMM_ON;
447 if (viafb_SAMM_ON == 1) {
449 u.viasamm.size_prim = viaparinfo->fbmem_free;
450 u.viasamm.size_sec = viaparinfo1->fbmem_free;
452 if (viafb_second_size) {
453 u.viasamm.size_prim =
454 viaparinfo->fbmem_free -
455 viafb_second_size * 1024 * 1024;
457 viafb_second_size * 1024 * 1024;
459 u.viasamm.size_prim =
460 viaparinfo->fbmem_free >> 1;
462 (viaparinfo->fbmem_free >> 1);
465 u.viasamm.mem_base = viaparinfo->fbmem;
466 u.viasamm.offset_sec = viafb_second_offset;
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;
475 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
479 case VIAFB_TURN_ON_OUTPUT_DEVICE:
480 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
482 if (gpu32 & CRT_Device)
483 via_set_state(VIA_CRT, VIA_STATE_ON);
484 if (gpu32 & DVI_Device)
486 if (gpu32 & LCD_Device)
489 case VIAFB_TURN_OFF_OUTPUT_DEVICE:
490 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
492 if (gpu32 & CRT_Device)
493 via_set_state(VIA_CRT, VIA_STATE_OFF);
494 if (gpu32 & DVI_Device)
496 if (gpu32 & LCD_Device)
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;
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;
510 u.active_dev.xres = viafb_hotplug_Xres;
511 u.active_dev.yres = viafb_hotplug_Yres;
513 u.active_dev.xres1 = viafb_second_xres;
514 u.active_dev.yres1 = viafb_second_yres;
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;
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;
525 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
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;
535 if (copy_to_user(argp, &u.driver_version,
536 sizeof(u.driver_version)))
541 case VIAFB_GET_DEVICE_INFO:
543 retrieve_device_setting(&u.viafb_setting);
545 if (copy_to_user(argp, &u.viafb_setting,
546 sizeof(u.viafb_setting)))
551 case VIAFB_GET_DEVICE_SUPPORT:
552 viafb_get_device_support_state(&state_info);
553 if (put_user(state_info, argp))
557 case VIAFB_GET_DEVICE_CONNECT:
558 viafb_get_device_connect_state(&state_info);
559 if (put_user(state_info, argp))
563 case VIAFB_GET_PANEL_SUPPORT_EXPAND:
565 viafb_lcd_get_support_expand_state(info->var.xres,
567 if (put_user(state_info, argp))
571 case VIAFB_GET_DRIVER_NAME:
572 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
576 case VIAFB_SET_GAMMA_LUT:
577 viafb_gamma_table = memdup_array_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);
584 case VIAFB_GET_GAMMA_LUT:
585 viafb_gamma_table = kmalloc_array(256, sizeof(u32),
587 if (!viafb_gamma_table)
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);
595 kfree(viafb_gamma_table);
598 case VIAFB_GET_GAMMA_SUPPORT_STATE:
599 viafb_get_gamma_support_state(viafb_bpp, &state_info);
600 if (put_user(state_info, argp))
603 case VIAFB_SYNC_SURFACE:
604 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
606 case VIAFB_GET_DRIVER_CAPS:
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)))
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)))
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)))
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)))
628 case VIAFB_GET_PANEL_POSITION:
629 if (copy_from_user(&u.panel_pos_size_para, argp,
630 sizeof(u.panel_pos_size_para)))
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)))
637 case VIAFB_GET_PANEL_SIZE:
638 if (copy_from_user(&u.panel_pos_size_para, argp,
639 sizeof(u.panel_pos_size_para)))
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)))
647 case VIAFB_SET_PANEL_POSITION:
648 if (copy_from_user(&u.panel_pos_size_para, argp,
649 sizeof(u.panel_pos_size_para)))
652 case VIAFB_SET_PANEL_SIZE:
653 if (copy_from_user(&u.panel_pos_size_para, argp,
654 sizeof(u.panel_pos_size_para)))
665 static void viafb_fillrect(struct fb_info *info,
666 const struct fb_fillrect *rect)
668 struct viafb_par *viapar = info->par;
669 struct viafb_shared *shared = viapar->shared;
673 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
674 cfb_fillrect(info, rect);
678 if (!rect->width || !rect->height)
681 if (info->fix.visual == FB_VISUAL_TRUECOLOR)
682 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
684 fg_color = rect->color;
686 if (rect->rop == ROP_XOR)
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);
699 static void viafb_copyarea(struct fb_info *info,
700 const struct fb_copyarea *area)
702 struct viafb_par *viapar = info->par;
703 struct viafb_shared *shared = viapar->shared;
705 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
706 cfb_copyarea(info, area);
710 if (!area->width || !area->height)
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);
722 static void viafb_imageblit(struct fb_info *info,
723 const struct fb_image *image)
725 struct viafb_par *viapar = info->par;
726 struct viafb_shared *shared = viapar->shared;
727 u32 fg_color = 0, bg_color = 0;
730 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
731 (image->depth != 1 && image->depth != viapar->depth)) {
732 cfb_imageblit(info, image);
736 if (image->depth == 1) {
737 op = VIA_BITBLT_MONO;
738 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
740 ((u32 *)info->pseudo_palette)[image->fg_color];
742 ((u32 *)info->pseudo_palette)[image->bg_color];
744 fg_color = image->fg_color;
745 bg_color = image->bg_color;
748 op = VIA_BITBLT_COLOR;
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);
758 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
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;
766 if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
769 /* LCD ouput does not support hw cursors (at least on VN896) */
770 if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
774 viafb_show_hw_cursor(info, HW_Cursor_OFF);
776 if (cursor->set & FB_CUR_SETHOT) {
777 temp = (cursor->hot.x << 16) + cursor->hot.y;
778 writel(temp, engine + VIA_REG_CURSOR_ORG);
781 if (cursor->set & FB_CUR_SETPOS) {
782 yy = cursor->image.dy - info->var.yoffset;
783 xx = cursor->image.dx - info->var.xoffset;
786 writel(temp, engine + VIA_REG_CURSOR_POS);
789 if (cursor->image.width <= 32 && cursor->image.height <= 32)
791 else if (cursor->image.width <= 64 && cursor->image.height <= 64)
794 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
795 "%dx%d", cursor->image.width, cursor->image.height);
799 if (cursor->set & FB_CUR_SETSIZE) {
800 temp = readl(engine + VIA_REG_CURSOR_MODE);
806 writel(temp, engine + VIA_REG_CURSOR_MODE);
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) {
817 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
818 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
819 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
821 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
822 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
823 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
826 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
827 (info->cmap.green[fg_color] & 0xFF00) |
828 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
830 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
831 (info->cmap.green[bg_color] & 0xFF00) |
832 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
835 writel(bg_color, engine + VIA_REG_CURSOR_BG);
836 writel(fg_color, engine + VIA_REG_CURSOR_FG);
839 if (cursor->set & FB_CUR_SETSHAPE) {
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;
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;
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;
866 switch (cursor->rop) {
868 for (i = 0; i < size; i++)
869 cr_data->data[i] = cursor->mask[i];
873 for (i = 0; i < size; i++)
874 cr_data->data[i] = cursor->mask[i];
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];
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];
896 memcpy_toio(viafbinfo->screen_base + viapar->shared->
897 cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
902 viafb_show_hw_cursor(info, HW_Cursor_ON);
907 static int viafb_sync(struct fb_info *info)
909 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
910 viafb_wait_engine_idle(info);
914 static int get_primary_device(void)
916 int primary_device = 0;
917 /* Rule: device on iga1 path are the primary device. */
920 if (viaparinfo->shared->iga1_devices & VIA_CRT) {
921 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
922 primary_device = CRT_Device;
926 if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
927 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
929 tmds_setting_info->iga_path);
930 primary_device = DVI_Device;
934 if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
935 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
937 lvds_setting_info->iga_path);
938 primary_device = LCD_Device;
942 if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
943 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
945 lvds_setting_info2->iga_path);
946 primary_device = LCD2_Device;
950 return primary_device;
953 static void retrieve_device_setting(struct viafb_ioctl_setting
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;
967 setting_info->samm_status = viafb_SAMM_ON;
968 setting_info->primary_device = get_primary_device();
970 setting_info->first_dev_bpp = viafb_bpp;
971 setting_info->second_dev_bpp = viafb_bpp1;
973 setting_info->first_dev_refresh = viafb_refresh;
974 setting_info->second_dev_refresh = viafb_refresh1;
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;
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;
987 static int __init parse_active_dev(void)
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;
1003 viafb_CRT_ON = STATE_ON;
1004 viafb_SAMM_ON = STATE_OFF;
1006 } else if (!strcmp(viafb_active_dev, "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")) {
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")) {
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")) {
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")) {
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")) {
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")) {
1046 viafb_CRT_ON = STATE_ON;
1047 viafb_SAMM_ON = STATE_OFF;
1048 } else if (!strcmp(viafb_active_dev, "DVI")) {
1050 viafb_DVI_ON = STATE_ON;
1051 viafb_SAMM_ON = STATE_OFF;
1052 } else if (!strcmp(viafb_active_dev, "LCD")) {
1054 viafb_LCD_ON = STATE_ON;
1055 viafb_SAMM_ON = STATE_OFF;
1062 static int parse_port(char *opt_str, int *output_interface)
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;
1075 *output_interface = INTERFACE_NONE;
1079 static void parse_lcd_port(void)
1081 parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1083 /*Initialize to avoid unexpected behavior */
1084 viaparinfo->chip_info->lvds_chip_info2.output_interface =
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.
1092 static void parse_dvi_port(void)
1094 parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
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.
1102 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
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
1110 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1112 u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1114 (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1115 (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
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);
1124 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1126 return single_open(file, viafb_dvp0_proc_show, NULL);
1129 static ssize_t viafb_dvp0_proc_write(struct file *file,
1130 const char __user *buffer, size_t count, loff_t *pos)
1132 char buf[20], *value, *pbuf;
1134 unsigned long length, i;
1137 length = count > 20 ? 20 : count;
1138 if (copy_from_user(&buf[0], buffer, length))
1140 buf[length - 1] = '\0'; /*Ensure end string */
1142 for (i = 0; i < 3; i++) {
1143 value = strsep(&pbuf, " ");
1144 if (value != NULL) {
1145 if (kstrtou8(value, 0, ®_val) < 0)
1147 DEBUG_MSG(KERN_INFO "DVP0:reg_val[%lu]=:%x\n", i,
1151 viafb_write_reg_mask(CR96, VIACR,
1155 viafb_write_reg_mask(SR2A, VIASR,
1156 reg_val << 4, BIT5);
1157 viafb_write_reg_mask(SR1B, VIASR,
1158 reg_val << 1, BIT1);
1161 viafb_write_reg_mask(SR2A, VIASR,
1162 reg_val << 3, BIT4);
1163 viafb_write_reg_mask(SR1E, VIASR,
1164 reg_val << 2, BIT2);
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,
1184 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
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);
1194 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1196 return single_open(file, viafb_dvp1_proc_show, NULL);
1199 static ssize_t viafb_dvp1_proc_write(struct file *file,
1200 const char __user *buffer, size_t count, loff_t *pos)
1202 char buf[20], *value, *pbuf;
1204 unsigned long length, i;
1207 length = count > 20 ? 20 : count;
1208 if (copy_from_user(&buf[0], buffer, length))
1210 buf[length - 1] = '\0'; /*Ensure end string */
1212 for (i = 0; i < 3; i++) {
1213 value = strsep(&pbuf, " ");
1214 if (value != NULL) {
1215 if (kstrtou8(value, 0, ®_val) < 0)
1219 viafb_write_reg_mask(CR9B, VIACR,
1223 viafb_write_reg_mask(SR65, VIASR,
1224 reg_val << 2, 0x0c);
1227 viafb_write_reg_mask(SR65, VIASR,
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,
1248 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1251 dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1252 seq_printf(m, "%x\n", dfp_high);
1256 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1258 return single_open(file, viafb_dfph_proc_show, NULL);
1261 static ssize_t viafb_dfph_proc_write(struct file *file,
1262 const char __user *buffer, size_t count, loff_t *pos)
1266 err = kstrtou8_from_user(buffer, count, 0, ®_val);
1270 viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
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,
1282 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1285 dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1286 seq_printf(m, "%x\n", dfp_low);
1290 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1292 return single_open(file, viafb_dfpl_proc_show, NULL);
1295 static ssize_t viafb_dfpl_proc_write(struct file *file,
1296 const char __user *buffer, size_t count, loff_t *pos)
1300 err = kstrtou8_from_user(buffer, count, 0, ®_val);
1304 viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
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,
1316 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1318 u8 vt1636_08 = 0, vt1636_09 = 0;
1319 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1322 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1323 &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
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);
1332 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1335 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1336 &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
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);
1348 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1350 return single_open(file, viafb_vt1636_proc_show, NULL);
1353 static ssize_t viafb_vt1636_proc_write(struct file *file,
1354 const char __user *buffer, size_t count, loff_t *pos)
1356 char buf[30], *value, *pbuf;
1357 struct IODATA reg_val;
1358 unsigned long length, i;
1361 length = count > 30 ? 30 : count;
1362 if (copy_from_user(&buf[0], buffer, length))
1364 buf[length - 1] = '\0'; /*Ensure end string */
1366 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1368 for (i = 0; i < 2; i++) {
1369 value = strsep(&pbuf, " ");
1370 if (value != NULL) {
1371 if (kstrtou8(value, 0, ®_val.Data) < 0)
1375 reg_val.Index = 0x08;
1376 reg_val.Mask = 0x0f;
1377 viafb_gpio_i2c_write_mask_lvds
1378 (viaparinfo->lvds_setting_info,
1380 chip_info->lvds_chip_info,
1384 reg_val.Index = 0x09;
1385 reg_val.Mask = 0x1f;
1386 viafb_gpio_i2c_write_mask_lvds
1387 (viaparinfo->lvds_setting_info,
1389 chip_info->lvds_chip_info,
1403 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1405 for (i = 0; i < 2; i++) {
1406 value = strsep(&pbuf, " ");
1407 if (value != NULL) {
1408 if (kstrtou8(value, 0, ®_val.Data) < 0)
1412 reg_val.Index = 0x08;
1413 reg_val.Mask = 0x0f;
1414 viafb_gpio_i2c_write_mask_lvds
1415 (viaparinfo->lvds_setting_info2,
1417 chip_info->lvds_chip_info2,
1421 reg_val.Index = 0x09;
1422 reg_val.Mask = 0x1f;
1423 viafb_gpio_i2c_write_mask_lvds
1424 (viaparinfo->lvds_setting_info2,
1426 chip_info->lvds_chip_info2,
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,
1451 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1453 static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1455 via_odev_to_seq(m, supported_odev_map[
1456 viaparinfo->shared->chip_info.gfx_chip_name]);
1460 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1462 char buf[64], *ptr = buf;
1466 if (count < 1 || count > 63)
1468 if (copy_from_user(&buf[0], buffer, count))
1471 add = buf[0] == '+';
1472 sub = buf[0] == '-';
1475 devices = via_parse_odev(ptr, &ptr);
1489 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1491 via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1495 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1497 return single_open(file, viafb_iga1_odev_proc_show, NULL);
1500 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1501 const char __user *buffer, size_t count, loff_t *pos)
1503 u32 dev_on, dev_off, dev_old, dev_new;
1506 dev_old = dev_new = viaparinfo->shared->iga1_devices;
1507 res = odev_update(buffer, count, &dev_new);
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);
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,
1528 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1530 via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1534 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1536 return single_open(file, viafb_iga2_odev_proc_show, NULL);
1539 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1540 const char __user *buffer, size_t count, loff_t *pos)
1542 u32 dev_on, dev_off, dev_old, dev_new;
1545 dev_old = dev_new = viaparinfo->shared->iga2_devices;
1546 res = odev_update(buffer, count, &dev_new);
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);
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,
1567 #define IS_VT1636(lvds_chip) ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1568 static void viafb_init_proc(struct viafb_shared *shared)
1570 struct proc_dir_entry *iga1_entry, *iga2_entry,
1571 *viafb_entry = proc_mkdir("viafb", NULL);
1573 shared->proc_entry = 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 */
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);
1598 static void viafb_remove_proc(struct viafb_shared *shared)
1600 struct proc_dir_entry *viafb_entry = shared->proc_entry;
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);
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 */
1621 remove_proc_entry("viafb", NULL);
1625 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1627 const struct fb_videomode *mode = NULL;
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);
1641 } else if (machine_is_olpc()) {
1651 *xres = simple_strtoul(str, &ptr, 10);
1655 *yres = simple_strtoul(&ptr[1], &ptr, 10);
1664 static int viafb_suspend(void *unused)
1667 fb_set_suspend(viafbinfo, 1);
1668 viafb_sync(viafbinfo);
1674 static int viafb_resume(void *unused)
1677 if (viaparinfo->shared->vdev->engine_mmio)
1678 viafb_reset_engine(viaparinfo);
1679 viafb_set_par(viafbinfo);
1681 viafb_set_par(viafbinfo1);
1682 fb_set_suspend(viafbinfo, 0);
1688 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1689 .suspend = viafb_suspend,
1690 .resume = viafb_resume
1695 static void i2c_bus_probe(struct viafb_shared *shared)
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));
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));
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));
1711 printk(KERN_INFO "viafb: Finished I2C bus probing");
1714 static void i2c_bus_free(struct viafb_shared *shared)
1716 via_aux_free(shared->i2c_26);
1717 via_aux_free(shared->i2c_31);
1718 via_aux_free(shared->i2c_2C);
1721 int via_fb_pci_probe(struct viafb_dev *vdev)
1723 u32 default_xres, default_yres;
1724 struct fb_var_screeninfo default_var;
1726 u32 viafb_par_length;
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);
1732 /* Allocate fb_info and ***_par here, also including some other needed
1735 viafbinfo = framebuffer_alloc(viafb_par_length +
1736 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
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;
1751 i2c_bus_probe(viaparinfo->shared);
1757 viafb_init_chip_info(vdev->chip_type);
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.
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;
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_HWACCEL_YPAN;
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;
1781 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1782 default_var.accel_flags = 0;
1785 if (viafb_second_size && (viafb_second_size < 8)) {
1786 viafb_second_offset = viaparinfo->fbmem_free -
1787 viafb_second_size * 1024 * 1024;
1789 viafb_second_size = 8;
1790 viafb_second_offset = viaparinfo->fbmem_free -
1791 viafb_second_size * 1024 * 1024;
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);
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;
1810 if (viafb_dual_fb) {
1811 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1815 goto out_fb_release;
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;
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;
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;
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));
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,
1854 viafb_check_var(&viafbinfo->var, viafbinfo);
1855 viafb_update_fix(viafbinfo);
1856 viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1858 default_var.activate = FB_ACTIVATE_NOW;
1859 rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1861 goto out_fb1_release;
1863 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1864 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1865 rc = register_framebuffer(viafbinfo1);
1867 goto out_dealloc_cmap;
1869 rc = register_framebuffer(viafbinfo);
1871 goto out_fb1_unreg_lcd_cle266;
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);
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);
1884 viafb_init_proc(viaparinfo->shared);
1885 viafb_init_dac(IGA2);
1888 viafb_pm_register(&viafb_fb_pm_hooks);
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);
1899 fb_dealloc_cmap(&viafbinfo->cmap);
1901 framebuffer_release(viafbinfo1);
1903 i2c_bus_free(viaparinfo->shared);
1904 framebuffer_release(viafbinfo);
1908 void via_fb_pci_remove(struct pci_dev *pdev)
1910 DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1911 fb_dealloc_cmap(&viafbinfo->cmap);
1912 unregister_framebuffer(viafbinfo);
1914 unregister_framebuffer(viafbinfo1);
1915 viafb_remove_proc(viaparinfo->shared);
1916 i2c_bus_free(viaparinfo->shared);
1917 framebuffer_release(viafbinfo);
1919 framebuffer_release(viafbinfo1);
1923 static int __init viafb_setup(void)
1928 DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1930 if (fb_get_options("viafb", &options))
1933 if (!options || !*options)
1936 while ((this_opt = strsep(&options, ",")) != NULL) {
1940 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1941 viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1944 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1945 viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1948 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1949 if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1951 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1952 if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1954 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1955 if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1957 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1958 if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1960 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1961 if (kstrtoint(this_opt + 21, 0,
1962 &viafb_lcd_dsp_method) < 0)
1964 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1965 if (kstrtoint(this_opt + 19, 0,
1966 &viafb_lcd_panel_id) < 0)
1968 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1969 if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1971 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1972 if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1974 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1975 viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1976 if (!viafb_active_dev)
1978 } else if (!strncmp(this_opt,
1979 "viafb_display_hardware_layout=", 30)) {
1980 if (kstrtoint(this_opt + 30, 0,
1981 &viafb_display_hardware_layout) < 0)
1983 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
1984 if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
1986 } else if (!strncmp(this_opt,
1987 "viafb_platform_epia_dvi=", 24)) {
1988 if (kstrtoint(this_opt + 24, 0,
1989 &viafb_platform_epia_dvi) < 0)
1991 } else if (!strncmp(this_opt,
1992 "viafb_device_lcd_dualedge=", 26)) {
1993 if (kstrtoint(this_opt + 26, 0,
1994 &viafb_device_lcd_dualedge) < 0)
1996 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
1997 if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
1999 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2000 if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2002 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2003 viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2004 if (!viafb_lcd_port)
2006 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2007 viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2008 if (!viafb_dvi_port)
2017 * These are called out of via-core for now.
2019 int __init viafb_init(void)
2021 u32 dummy_x, dummy_y;
2024 if (machine_is_olpc())
2025 /* Apply XO-1.5-specific configuration. */
2026 viafb_lcd_panel_id = 23;
2033 if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2034 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2035 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2036 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2037 || viafb_bpp < 0 || viafb_bpp > 32
2038 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2039 || parse_active_dev())
2043 "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2044 VERSION_MAJOR, VERSION_MINOR);
2048 void __exit viafb_exit(void)
2050 DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2053 static struct fb_ops viafb_ops = {
2054 .owner = THIS_MODULE,
2055 .fb_open = viafb_open,
2056 .fb_release = viafb_release,
2057 __FB_DEFAULT_IOMEM_OPS_RDWR,
2058 .fb_check_var = viafb_check_var,
2059 .fb_set_par = viafb_set_par,
2060 .fb_setcolreg = viafb_setcolreg,
2061 .fb_pan_display = viafb_pan_display,
2062 .fb_blank = viafb_blank,
2063 .fb_fillrect = viafb_fillrect,
2064 .fb_copyarea = viafb_copyarea,
2065 .fb_imageblit = viafb_imageblit,
2066 .fb_cursor = viafb_cursor,
2067 .fb_ioctl = viafb_ioctl,
2068 .fb_sync = viafb_sync,
2069 __FB_DEFAULT_IOMEM_OPS_MMAP,
2074 module_param(viafb_mode, charp, S_IRUSR);
2075 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2077 module_param(viafb_mode1, charp, S_IRUSR);
2078 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2080 module_param(viafb_bpp, int, S_IRUSR);
2081 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2083 module_param(viafb_bpp1, int, S_IRUSR);
2084 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2086 module_param(viafb_refresh, int, S_IRUSR);
2087 MODULE_PARM_DESC(viafb_refresh,
2088 "Set CRT viafb_refresh rate (default = 60)");
2090 module_param(viafb_refresh1, int, S_IRUSR);
2091 MODULE_PARM_DESC(viafb_refresh1,
2092 "Set CRT refresh rate (default = 60)");
2094 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2095 MODULE_PARM_DESC(viafb_lcd_panel_id,
2096 "Set Flat Panel type(Default=1024x768)");
2098 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2099 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2100 "Set Flat Panel display scaling method.(Default=Expansion)");
2102 module_param(viafb_SAMM_ON, int, S_IRUSR);
2103 MODULE_PARM_DESC(viafb_SAMM_ON,
2104 "Turn on/off flag of SAMM(Default=OFF)");
2106 module_param(viafb_accel, int, S_IRUSR);
2107 MODULE_PARM_DESC(viafb_accel,
2108 "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2110 module_param(viafb_active_dev, charp, S_IRUSR);
2111 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2113 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2114 MODULE_PARM_DESC(viafb_display_hardware_layout,
2115 "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2117 module_param(viafb_second_size, int, S_IRUSR);
2118 MODULE_PARM_DESC(viafb_second_size,
2119 "Set secondary device memory size");
2121 module_param(viafb_dual_fb, int, S_IRUSR);
2122 MODULE_PARM_DESC(viafb_dual_fb,
2123 "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2125 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2126 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2127 "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2129 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2130 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2131 "Turn on/off flag of dual edge panel.(Default = OFF)");
2133 module_param(viafb_bus_width, int, S_IRUSR);
2134 MODULE_PARM_DESC(viafb_bus_width,
2135 "Set bus width of panel.(Default = 12)");
2137 module_param(viafb_lcd_mode, int, S_IRUSR);
2138 MODULE_PARM_DESC(viafb_lcd_mode,
2139 "Set Flat Panel mode(Default=OPENLDI)");
2141 module_param(viafb_lcd_port, charp, S_IRUSR);
2142 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2144 module_param(viafb_dvi_port, charp, S_IRUSR);
2145 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2147 MODULE_DESCRIPTION("VIA UniChrome (Pro) and Chrome9 display driver");
2148 MODULE_LICENSE("GPL");