2 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation;
8 * either version 2, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
13 * A PARTICULAR PURPOSE.See the GNU General Public License
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include <linux/module.h>
23 #include <linux/seq_file.h>
24 #include <linux/slab.h>
25 #include <linux/stat.h>
26 #include <linux/via-core.h>
27 #include <linux/via_i2c.h>
32 static char *viafb_name = "Via";
33 static u32 pseudo_pal[17];
36 static char *viafb_mode;
37 static char *viafb_mode1;
38 static int viafb_bpp = 32;
39 static int viafb_bpp1 = 32;
41 static unsigned int viafb_second_offset;
42 static int viafb_second_size;
44 static int viafb_accel = 1;
46 /* Added for specifying active devices.*/
47 static char *viafb_active_dev;
49 /*Added for specify lcd output port*/
50 static char *viafb_lcd_port = "";
51 static char *viafb_dvi_port = "";
53 static void retrieve_device_setting(struct viafb_ioctl_setting
55 static int viafb_pan_display(struct fb_var_screeninfo *var,
56 struct fb_info *info);
58 static struct fb_ops viafb_ops;
60 /* supported output devices on each IGP
61 * only CX700, VX800, VX855, VX900 were documented
62 * VIA_CRT should be everywhere
63 * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
64 * source selection on CX700 and later
65 * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
67 static const u32 supported_odev_map[] = {
68 [UNICHROME_CLE266] = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
69 [UNICHROME_K400] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
71 [UNICHROME_K800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
73 [UNICHROME_PM800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
75 [UNICHROME_CN700] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
77 [UNICHROME_CX700] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
78 [UNICHROME_CN750] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
79 [UNICHROME_K8M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
80 [UNICHROME_P4M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
81 [UNICHROME_P4M900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
82 [UNICHROME_VX800] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
83 [UNICHROME_VX855] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
84 [UNICHROME_VX900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
87 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
90 var->red.msb_right = 0;
91 var->green.msb_right = 0;
92 var->blue.msb_right = 0;
93 var->transp.offset = 0;
94 var->transp.length = 0;
95 var->transp.msb_right = 0;
99 var->bits_per_pixel = 8;
101 var->green.offset = 0;
102 var->blue.offset = 0;
104 var->green.length = 8;
105 var->blue.length = 8;
108 var->bits_per_pixel = 16;
109 var->red.offset = 10;
110 var->green.offset = 5;
111 var->blue.offset = 0;
113 var->green.length = 5;
114 var->blue.length = 5;
117 var->bits_per_pixel = 16;
118 var->red.offset = 11;
119 var->green.offset = 5;
120 var->blue.offset = 0;
122 var->green.length = 6;
123 var->blue.length = 5;
126 var->bits_per_pixel = 32;
127 var->red.offset = 16;
128 var->green.offset = 8;
129 var->blue.offset = 0;
131 var->green.length = 8;
132 var->blue.length = 8;
135 var->bits_per_pixel = 32;
136 var->red.offset = 20;
137 var->green.offset = 10;
138 var->blue.offset = 0;
139 var->red.length = 10;
140 var->green.length = 10;
141 var->blue.length = 10;
146 static void viafb_update_fix(struct fb_info *info)
148 u32 bpp = info->var.bits_per_pixel;
151 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
152 info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
156 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
157 struct viafb_par *viaparinfo)
159 memset(fix, 0, sizeof(struct fb_fix_screeninfo));
160 strcpy(fix->id, viafb_name);
162 fix->smem_start = viaparinfo->fbmem;
163 fix->smem_len = viaparinfo->fbmem_free;
165 fix->type = FB_TYPE_PACKED_PIXELS;
167 fix->visual = FB_VISUAL_TRUECOLOR;
169 fix->xpanstep = fix->ywrapstep = 0;
172 /* Just tell the accel name */
173 viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
175 static int viafb_open(struct fb_info *info, int user)
177 DEBUG_MSG(KERN_INFO "viafb_open!\n");
181 static int viafb_release(struct fb_info *info, int user)
183 DEBUG_MSG(KERN_INFO "viafb_release!\n");
187 static inline int get_var_refresh(struct fb_var_screeninfo *var)
191 htotal = var->left_margin + var->xres + var->right_margin
193 vtotal = var->upper_margin + var->yres + var->lower_margin
195 return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
198 static int viafb_check_var(struct fb_var_screeninfo *var,
199 struct fb_info *info)
202 struct viafb_par *ppar = info->par;
205 DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
207 /* HW neither support interlacte nor double-scaned mode */
208 if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
211 /* the refresh rate is not important here, as we only want to know
212 * whether the resolution exists
214 if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
216 "viafb: Mode %dx%dx%d not supported!!\n",
217 var->xres, var->yres, var->bits_per_pixel);
221 depth = fb_get_color_depth(var, &info->fix);
223 depth = var->bits_per_pixel;
225 if (depth < 0 || depth > 32)
229 else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
231 else if (depth == 30)
235 else if (depth <= 16)
240 viafb_fill_var_color_info(var, depth);
241 if (var->xres_virtual < var->xres)
242 var->xres_virtual = var->xres;
244 line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
246 if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
249 /* Based on var passed in to calculate the refresh,
250 * because our driver use some modes special.
252 refresh = viafb_get_refresh(var->xres, var->yres,
253 get_var_refresh(var));
255 /* Adjust var according to our driver's own table */
256 viafb_fill_var_timing_info(var,
257 viafb_get_best_mode(var->xres, var->yres, refresh));
258 if (var->accel_flags & FB_ACCELF_TEXT &&
259 !ppar->shared->vdev->engine_mmio)
260 var->accel_flags = 0;
265 static int viafb_set_par(struct fb_info *info)
267 struct viafb_par *viapar = info->par;
269 DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
271 viafb_update_fix(info);
272 viapar->depth = fb_get_color_depth(&info->var, &info->fix);
273 viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
274 viafbinfo->var.bits_per_pixel, 0);
277 viafb_update_device_setting(viafbinfo1->var.xres,
278 viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
280 } else if (viafb_SAMM_ON == 1) {
282 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
283 viafb_second_xres, viafb_second_yres, viafb_bpp1);
285 viafb_update_device_setting(viafb_second_xres,
286 viafb_second_yres, viafb_bpp1, 1);
289 refresh = get_var_refresh(&info->var);
290 if (viafb_dual_fb && viapar->iga_path == IGA2) {
291 viafb_bpp1 = info->var.bits_per_pixel;
292 viafb_refresh1 = refresh;
294 viafb_bpp = info->var.bits_per_pixel;
295 viafb_refresh = refresh;
298 if (info->var.accel_flags & FB_ACCELF_TEXT)
299 info->flags &= ~FBINFO_HWACCEL_DISABLED;
301 info->flags |= FBINFO_HWACCEL_DISABLED;
303 viafb_pan_display(&info->var, info);
308 /* Set one color register */
309 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
310 unsigned blue, unsigned transp, struct fb_info *info)
312 struct viafb_par *viapar = info->par;
315 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
319 if (!viafb_dual_fb || viapar->iga_path == IGA1)
320 viafb_set_primary_color_register(regno, red >> 8,
321 green >> 8, blue >> 8);
323 if (!viafb_dual_fb || viapar->iga_path == IGA2)
324 viafb_set_secondary_color_register(regno, red >> 8,
325 green >> 8, blue >> 8);
330 r = (red >> (16 - info->var.red.length))
331 << info->var.red.offset;
332 b = (blue >> (16 - info->var.blue.length))
333 << info->var.blue.offset;
334 g = (green >> (16 - info->var.green.length))
335 << info->var.green.offset;
336 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
342 static int viafb_pan_display(struct fb_var_screeninfo *var,
343 struct fb_info *info)
345 struct viafb_par *viapar = info->par;
346 u32 vram_addr = viapar->vram_addr
347 + var->yoffset * info->fix.line_length
348 + var->xoffset * info->var.bits_per_pixel / 8;
350 DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
351 if (!viafb_dual_fb) {
352 via_set_primary_address(vram_addr);
353 via_set_secondary_address(vram_addr);
354 } else if (viapar->iga_path == IGA1)
355 via_set_primary_address(vram_addr);
357 via_set_secondary_address(vram_addr);
362 static int viafb_blank(int blank_mode, struct fb_info *info)
364 DEBUG_MSG(KERN_INFO "viafb_blank!\n");
365 /* clear DPMS setting */
367 switch (blank_mode) {
368 case FB_BLANK_UNBLANK:
369 /* Screen: On, HSync: On, VSync: On */
370 /* control CRT monitor power management */
371 via_set_state(VIA_CRT, VIA_STATE_ON);
373 case FB_BLANK_HSYNC_SUSPEND:
374 /* Screen: Off, HSync: Off, VSync: On */
375 /* control CRT monitor power management */
376 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
378 case FB_BLANK_VSYNC_SUSPEND:
379 /* Screen: Off, HSync: On, VSync: Off */
380 /* control CRT monitor power management */
381 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
383 case FB_BLANK_POWERDOWN:
384 /* Screen: Off, HSync: Off, VSync: Off */
385 /* control CRT monitor power management */
386 via_set_state(VIA_CRT, VIA_STATE_OFF);
393 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
396 struct viafb_ioctl_mode viamode;
397 struct viafb_ioctl_samm viasamm;
398 struct viafb_driver_version driver_version;
399 struct fb_var_screeninfo sec_var;
400 struct _panel_size_pos_info panel_pos_size_para;
401 struct viafb_ioctl_setting viafb_setting;
402 struct device_t active_dev;
405 u32 *viafb_gamma_table;
406 char driver_name[] = "viafb";
408 u32 __user *argp = (u32 __user *) arg;
411 DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
412 printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
413 memset(&u, 0, sizeof(u));
416 case VIAFB_GET_CHIP_INFO:
417 if (copy_to_user(argp, viaparinfo->chip_info,
418 sizeof(struct chip_information)))
421 case VIAFB_GET_INFO_SIZE:
422 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
424 return viafb_ioctl_get_viafb_info(arg);
426 return put_user(viafb_ioctl_hotplug(info->var.xres,
428 info->var.bits_per_pixel), argp);
429 case VIAFB_SET_HOTPLUG_FLAG:
430 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
432 viafb_hotplug = (gpu32) ? 1 : 0;
434 case VIAFB_GET_RESOLUTION:
435 u.viamode.xres = (u32) viafb_hotplug_Xres;
436 u.viamode.yres = (u32) viafb_hotplug_Yres;
437 u.viamode.refresh = (u32) viafb_hotplug_refresh;
438 u.viamode.bpp = (u32) viafb_hotplug_bpp;
439 if (viafb_SAMM_ON == 1) {
440 u.viamode.xres_sec = viafb_second_xres;
441 u.viamode.yres_sec = viafb_second_yres;
442 u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
443 u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
444 u.viamode.refresh_sec = viafb_refresh1;
445 u.viamode.bpp_sec = viafb_bpp1;
447 u.viamode.xres_sec = 0;
448 u.viamode.yres_sec = 0;
449 u.viamode.virtual_xres_sec = 0;
450 u.viamode.virtual_yres_sec = 0;
451 u.viamode.refresh_sec = 0;
452 u.viamode.bpp_sec = 0;
454 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
457 case VIAFB_GET_SAMM_INFO:
458 u.viasamm.samm_status = viafb_SAMM_ON;
460 if (viafb_SAMM_ON == 1) {
462 u.viasamm.size_prim = viaparinfo->fbmem_free;
463 u.viasamm.size_sec = viaparinfo1->fbmem_free;
465 if (viafb_second_size) {
466 u.viasamm.size_prim =
467 viaparinfo->fbmem_free -
468 viafb_second_size * 1024 * 1024;
470 viafb_second_size * 1024 * 1024;
472 u.viasamm.size_prim =
473 viaparinfo->fbmem_free >> 1;
475 (viaparinfo->fbmem_free >> 1);
478 u.viasamm.mem_base = viaparinfo->fbmem;
479 u.viasamm.offset_sec = viafb_second_offset;
481 u.viasamm.size_prim =
482 viaparinfo->memsize - viaparinfo->fbmem_used;
483 u.viasamm.size_sec = 0;
484 u.viasamm.mem_base = viaparinfo->fbmem;
485 u.viasamm.offset_sec = 0;
488 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
492 case VIAFB_TURN_ON_OUTPUT_DEVICE:
493 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
495 if (gpu32 & CRT_Device)
496 via_set_state(VIA_CRT, VIA_STATE_ON);
497 if (gpu32 & DVI_Device)
499 if (gpu32 & LCD_Device)
502 case VIAFB_TURN_OFF_OUTPUT_DEVICE:
503 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
505 if (gpu32 & CRT_Device)
506 via_set_state(VIA_CRT, VIA_STATE_OFF);
507 if (gpu32 & DVI_Device)
509 if (gpu32 & LCD_Device)
512 case VIAFB_GET_DEVICE:
513 u.active_dev.crt = viafb_CRT_ON;
514 u.active_dev.dvi = viafb_DVI_ON;
515 u.active_dev.lcd = viafb_LCD_ON;
516 u.active_dev.samm = viafb_SAMM_ON;
517 u.active_dev.primary_dev = viafb_primary_dev;
519 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
520 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
521 u.active_dev.lcd_mode = viafb_lcd_mode;
523 u.active_dev.xres = viafb_hotplug_Xres;
524 u.active_dev.yres = viafb_hotplug_Yres;
526 u.active_dev.xres1 = viafb_second_xres;
527 u.active_dev.yres1 = viafb_second_yres;
529 u.active_dev.bpp = viafb_bpp;
530 u.active_dev.bpp1 = viafb_bpp1;
531 u.active_dev.refresh = viafb_refresh;
532 u.active_dev.refresh1 = viafb_refresh1;
534 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
535 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
536 u.active_dev.bus_width = viafb_bus_width;
538 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
542 case VIAFB_GET_DRIVER_VERSION:
543 u.driver_version.iMajorNum = VERSION_MAJOR;
544 u.driver_version.iKernelNum = VERSION_KERNEL;
545 u.driver_version.iOSNum = VERSION_OS;
546 u.driver_version.iMinorNum = VERSION_MINOR;
548 if (copy_to_user(argp, &u.driver_version,
549 sizeof(u.driver_version)))
554 case VIAFB_GET_DEVICE_INFO:
556 retrieve_device_setting(&u.viafb_setting);
558 if (copy_to_user(argp, &u.viafb_setting,
559 sizeof(u.viafb_setting)))
564 case VIAFB_GET_DEVICE_SUPPORT:
565 viafb_get_device_support_state(&state_info);
566 if (put_user(state_info, argp))
570 case VIAFB_GET_DEVICE_CONNECT:
571 viafb_get_device_connect_state(&state_info);
572 if (put_user(state_info, argp))
576 case VIAFB_GET_PANEL_SUPPORT_EXPAND:
578 viafb_lcd_get_support_expand_state(info->var.xres,
580 if (put_user(state_info, argp))
584 case VIAFB_GET_DRIVER_NAME:
585 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
589 case VIAFB_SET_GAMMA_LUT:
590 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
591 if (IS_ERR(viafb_gamma_table))
592 return PTR_ERR(viafb_gamma_table);
593 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
594 kfree(viafb_gamma_table);
597 case VIAFB_GET_GAMMA_LUT:
598 viafb_gamma_table = kmalloc_array(256, sizeof(u32),
600 if (!viafb_gamma_table)
602 viafb_get_gamma_table(viafb_gamma_table);
603 if (copy_to_user(argp, viafb_gamma_table,
604 256 * sizeof(u32))) {
605 kfree(viafb_gamma_table);
608 kfree(viafb_gamma_table);
611 case VIAFB_GET_GAMMA_SUPPORT_STATE:
612 viafb_get_gamma_support_state(viafb_bpp, &state_info);
613 if (put_user(state_info, argp))
616 case VIAFB_SYNC_SURFACE:
617 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
619 case VIAFB_GET_DRIVER_CAPS:
622 case VIAFB_GET_PANEL_MAX_SIZE:
623 if (copy_from_user(&u.panel_pos_size_para, argp,
624 sizeof(u.panel_pos_size_para)))
626 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
627 if (copy_to_user(argp, &u.panel_pos_size_para,
628 sizeof(u.panel_pos_size_para)))
631 case VIAFB_GET_PANEL_MAX_POSITION:
632 if (copy_from_user(&u.panel_pos_size_para, argp,
633 sizeof(u.panel_pos_size_para)))
635 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
636 if (copy_to_user(argp, &u.panel_pos_size_para,
637 sizeof(u.panel_pos_size_para)))
641 case VIAFB_GET_PANEL_POSITION:
642 if (copy_from_user(&u.panel_pos_size_para, argp,
643 sizeof(u.panel_pos_size_para)))
645 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
646 if (copy_to_user(argp, &u.panel_pos_size_para,
647 sizeof(u.panel_pos_size_para)))
650 case VIAFB_GET_PANEL_SIZE:
651 if (copy_from_user(&u.panel_pos_size_para, argp,
652 sizeof(u.panel_pos_size_para)))
654 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
655 if (copy_to_user(argp, &u.panel_pos_size_para,
656 sizeof(u.panel_pos_size_para)))
660 case VIAFB_SET_PANEL_POSITION:
661 if (copy_from_user(&u.panel_pos_size_para, argp,
662 sizeof(u.panel_pos_size_para)))
665 case VIAFB_SET_PANEL_SIZE:
666 if (copy_from_user(&u.panel_pos_size_para, argp,
667 sizeof(u.panel_pos_size_para)))
678 static void viafb_fillrect(struct fb_info *info,
679 const struct fb_fillrect *rect)
681 struct viafb_par *viapar = info->par;
682 struct viafb_shared *shared = viapar->shared;
686 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
687 cfb_fillrect(info, rect);
691 if (!rect->width || !rect->height)
694 if (info->fix.visual == FB_VISUAL_TRUECOLOR)
695 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
697 fg_color = rect->color;
699 if (rect->rop == ROP_XOR)
704 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
705 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
706 rect->width, rect->height, info->var.bits_per_pixel,
707 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
708 NULL, 0, 0, 0, 0, fg_color, 0, rop))
709 cfb_fillrect(info, rect);
712 static void viafb_copyarea(struct fb_info *info,
713 const struct fb_copyarea *area)
715 struct viafb_par *viapar = info->par;
716 struct viafb_shared *shared = viapar->shared;
718 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
719 cfb_copyarea(info, area);
723 if (!area->width || !area->height)
726 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
727 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
728 area->width, area->height, info->var.bits_per_pixel,
729 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
730 NULL, viapar->vram_addr, info->fix.line_length,
731 area->sx, area->sy, 0, 0, 0))
732 cfb_copyarea(info, area);
735 static void viafb_imageblit(struct fb_info *info,
736 const struct fb_image *image)
738 struct viafb_par *viapar = info->par;
739 struct viafb_shared *shared = viapar->shared;
740 u32 fg_color = 0, bg_color = 0;
743 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
744 (image->depth != 1 && image->depth != viapar->depth)) {
745 cfb_imageblit(info, image);
749 if (image->depth == 1) {
750 op = VIA_BITBLT_MONO;
751 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
753 ((u32 *)info->pseudo_palette)[image->fg_color];
755 ((u32 *)info->pseudo_palette)[image->bg_color];
757 fg_color = image->fg_color;
758 bg_color = image->bg_color;
761 op = VIA_BITBLT_COLOR;
763 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
764 if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
765 image->width, image->height, info->var.bits_per_pixel,
766 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
767 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
768 cfb_imageblit(info, image);
771 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
773 struct viafb_par *viapar = info->par;
774 void __iomem *engine = viapar->shared->vdev->engine_mmio;
775 u32 temp, xx, yy, bg_color = 0, fg_color = 0,
776 chip_name = viapar->shared->chip_info.gfx_chip_name;
777 int i, j = 0, cur_size = 64;
779 if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
782 /* LCD ouput does not support hw cursors (at least on VN896) */
783 if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
787 viafb_show_hw_cursor(info, HW_Cursor_OFF);
789 if (cursor->set & FB_CUR_SETHOT) {
790 temp = (cursor->hot.x << 16) + cursor->hot.y;
791 writel(temp, engine + VIA_REG_CURSOR_ORG);
794 if (cursor->set & FB_CUR_SETPOS) {
795 yy = cursor->image.dy - info->var.yoffset;
796 xx = cursor->image.dx - info->var.xoffset;
799 writel(temp, engine + VIA_REG_CURSOR_POS);
802 if (cursor->image.width <= 32 && cursor->image.height <= 32)
804 else if (cursor->image.width <= 64 && cursor->image.height <= 64)
807 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
808 "%dx%d", cursor->image.width, cursor->image.height);
812 if (cursor->set & FB_CUR_SETSIZE) {
813 temp = readl(engine + VIA_REG_CURSOR_MODE);
819 writel(temp, engine + VIA_REG_CURSOR_MODE);
822 if (cursor->set & FB_CUR_SETCMAP) {
823 fg_color = cursor->image.fg_color;
824 bg_color = cursor->image.bg_color;
825 if (chip_name == UNICHROME_CX700 ||
826 chip_name == UNICHROME_VX800 ||
827 chip_name == UNICHROME_VX855 ||
828 chip_name == UNICHROME_VX900) {
830 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
831 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
832 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
834 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
835 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
836 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
839 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
840 (info->cmap.green[fg_color] & 0xFF00) |
841 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
843 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
844 (info->cmap.green[bg_color] & 0xFF00) |
845 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
848 writel(bg_color, engine + VIA_REG_CURSOR_BG);
849 writel(fg_color, engine + VIA_REG_CURSOR_FG);
852 if (cursor->set & FB_CUR_SETSHAPE) {
854 u8 data[CURSOR_SIZE];
855 u32 bak[CURSOR_SIZE / 4];
856 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
857 int size = ((cursor->image.width + 7) >> 3) *
858 cursor->image.height;
863 if (cur_size == 32) {
864 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
865 cr_data->bak[i] = 0x0;
866 cr_data->bak[i + 1] = 0xFFFFFFFF;
870 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
871 cr_data->bak[i] = 0x0;
872 cr_data->bak[i + 1] = 0x0;
873 cr_data->bak[i + 2] = 0xFFFFFFFF;
874 cr_data->bak[i + 3] = 0xFFFFFFFF;
879 switch (cursor->rop) {
881 for (i = 0; i < size; i++)
882 cr_data->data[i] = cursor->mask[i];
886 for (i = 0; i < size; i++)
887 cr_data->data[i] = cursor->mask[i];
893 if (cur_size == 32) {
894 for (i = 0; i < size; i++) {
895 cr_data->bak[j] = (u32) cr_data->data[i];
896 cr_data->bak[j + 1] = ~cr_data->bak[j];
900 for (i = 0; i < size; i++) {
901 cr_data->bak[j] = (u32) cr_data->data[i];
902 cr_data->bak[j + 1] = 0x0;
903 cr_data->bak[j + 2] = ~cr_data->bak[j];
904 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
909 memcpy_toio(viafbinfo->screen_base + viapar->shared->
910 cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
915 viafb_show_hw_cursor(info, HW_Cursor_ON);
920 static int viafb_sync(struct fb_info *info)
922 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
923 viafb_wait_engine_idle(info);
927 static int get_primary_device(void)
929 int primary_device = 0;
930 /* Rule: device on iga1 path are the primary device. */
933 if (viaparinfo->shared->iga1_devices & VIA_CRT) {
934 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
935 primary_device = CRT_Device;
939 if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
940 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
942 tmds_setting_info->iga_path);
943 primary_device = DVI_Device;
947 if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
948 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
950 lvds_setting_info->iga_path);
951 primary_device = LCD_Device;
955 if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
956 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
958 lvds_setting_info2->iga_path);
959 primary_device = LCD2_Device;
963 return primary_device;
966 static void retrieve_device_setting(struct viafb_ioctl_setting
970 /* get device status */
971 if (viafb_CRT_ON == 1)
972 setting_info->device_status = CRT_Device;
973 if (viafb_DVI_ON == 1)
974 setting_info->device_status |= DVI_Device;
975 if (viafb_LCD_ON == 1)
976 setting_info->device_status |= LCD_Device;
977 if (viafb_LCD2_ON == 1)
978 setting_info->device_status |= LCD2_Device;
980 setting_info->samm_status = viafb_SAMM_ON;
981 setting_info->primary_device = get_primary_device();
983 setting_info->first_dev_bpp = viafb_bpp;
984 setting_info->second_dev_bpp = viafb_bpp1;
986 setting_info->first_dev_refresh = viafb_refresh;
987 setting_info->second_dev_refresh = viafb_refresh1;
989 setting_info->first_dev_hor_res = viafb_hotplug_Xres;
990 setting_info->first_dev_ver_res = viafb_hotplug_Yres;
991 setting_info->second_dev_hor_res = viafb_second_xres;
992 setting_info->second_dev_ver_res = viafb_second_yres;
994 /* Get lcd attributes */
995 setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
996 setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
997 setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
1000 static int __init parse_active_dev(void)
1002 viafb_CRT_ON = STATE_OFF;
1003 viafb_DVI_ON = STATE_OFF;
1004 viafb_LCD_ON = STATE_OFF;
1005 viafb_LCD2_ON = STATE_OFF;
1006 /* 1. Modify the active status of devices. */
1007 /* 2. Keep the order of devices, so we can set corresponding
1008 IGA path to devices in SAMM case. */
1009 /* Note: The previous of active_dev is primary device,
1010 and the following is secondary device. */
1011 if (!viafb_active_dev) {
1012 if (machine_is_olpc()) { /* LCD only */
1013 viafb_LCD_ON = STATE_ON;
1014 viafb_SAMM_ON = STATE_OFF;
1016 viafb_CRT_ON = STATE_ON;
1017 viafb_SAMM_ON = STATE_OFF;
1019 } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1021 viafb_CRT_ON = STATE_ON;
1022 viafb_DVI_ON = STATE_ON;
1023 viafb_primary_dev = CRT_Device;
1024 } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1026 viafb_CRT_ON = STATE_ON;
1027 viafb_DVI_ON = STATE_ON;
1028 viafb_primary_dev = DVI_Device;
1029 } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1031 viafb_CRT_ON = STATE_ON;
1032 viafb_LCD_ON = STATE_ON;
1033 viafb_primary_dev = CRT_Device;
1034 } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1036 viafb_CRT_ON = STATE_ON;
1037 viafb_LCD_ON = STATE_ON;
1038 viafb_primary_dev = LCD_Device;
1039 } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1041 viafb_DVI_ON = STATE_ON;
1042 viafb_LCD_ON = STATE_ON;
1043 viafb_primary_dev = DVI_Device;
1044 } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1046 viafb_DVI_ON = STATE_ON;
1047 viafb_LCD_ON = STATE_ON;
1048 viafb_primary_dev = LCD_Device;
1049 } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1050 viafb_LCD_ON = STATE_ON;
1051 viafb_LCD2_ON = STATE_ON;
1052 viafb_primary_dev = LCD_Device;
1053 } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1054 viafb_LCD_ON = STATE_ON;
1055 viafb_LCD2_ON = STATE_ON;
1056 viafb_primary_dev = LCD2_Device;
1057 } else if (!strcmp(viafb_active_dev, "CRT")) {
1059 viafb_CRT_ON = STATE_ON;
1060 viafb_SAMM_ON = STATE_OFF;
1061 } else if (!strcmp(viafb_active_dev, "DVI")) {
1063 viafb_DVI_ON = STATE_ON;
1064 viafb_SAMM_ON = STATE_OFF;
1065 } else if (!strcmp(viafb_active_dev, "LCD")) {
1067 viafb_LCD_ON = STATE_ON;
1068 viafb_SAMM_ON = STATE_OFF;
1075 static int parse_port(char *opt_str, int *output_interface)
1077 if (!strncmp(opt_str, "DVP0", 4))
1078 *output_interface = INTERFACE_DVP0;
1079 else if (!strncmp(opt_str, "DVP1", 4))
1080 *output_interface = INTERFACE_DVP1;
1081 else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1082 *output_interface = INTERFACE_DFP;
1083 else if (!strncmp(opt_str, "DFP_HIGH", 8))
1084 *output_interface = INTERFACE_DFP_HIGH;
1085 else if (!strncmp(opt_str, "DFP_LOW", 7))
1086 *output_interface = INTERFACE_DFP_LOW;
1088 *output_interface = INTERFACE_NONE;
1092 static void parse_lcd_port(void)
1094 parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1096 /*Initialize to avoid unexpected behavior */
1097 viaparinfo->chip_info->lvds_chip_info2.output_interface =
1100 DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1101 viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1105 static void parse_dvi_port(void)
1107 parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1110 DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1111 viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1115 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1118 * The proc filesystem read/write function, a simple proc implement to
1119 * get/set the value of DPA DVP0, DVP0DataDriving, DVP0ClockDriving, DVP1,
1120 * DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1121 * CR9B, SR65, CR97, CR99
1123 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1125 u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1127 (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1128 (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1130 (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1131 (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1132 dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1133 seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1137 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1139 return single_open(file, viafb_dvp0_proc_show, NULL);
1142 static ssize_t viafb_dvp0_proc_write(struct file *file,
1143 const char __user *buffer, size_t count, loff_t *pos)
1145 char buf[20], *value, *pbuf;
1147 unsigned long length, i;
1150 length = count > 20 ? 20 : count;
1151 if (copy_from_user(&buf[0], buffer, length))
1153 buf[length - 1] = '\0'; /*Ensure end string */
1155 for (i = 0; i < 3; i++) {
1156 value = strsep(&pbuf, " ");
1157 if (value != NULL) {
1158 if (kstrtou8(value, 0, ®_val) < 0)
1160 DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1164 viafb_write_reg_mask(CR96, VIACR,
1168 viafb_write_reg_mask(SR2A, VIASR,
1169 reg_val << 4, BIT5);
1170 viafb_write_reg_mask(SR1B, VIASR,
1171 reg_val << 1, BIT1);
1174 viafb_write_reg_mask(SR2A, VIASR,
1175 reg_val << 3, BIT4);
1176 viafb_write_reg_mask(SR1E, VIASR,
1177 reg_val << 2, BIT2);
1189 static const struct file_operations viafb_dvp0_proc_fops = {
1190 .owner = THIS_MODULE,
1191 .open = viafb_dvp0_proc_open,
1193 .llseek = seq_lseek,
1194 .release = single_release,
1195 .write = viafb_dvp0_proc_write,
1198 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1200 u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1201 dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1202 dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1203 dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1204 seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1208 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1210 return single_open(file, viafb_dvp1_proc_show, NULL);
1213 static ssize_t viafb_dvp1_proc_write(struct file *file,
1214 const char __user *buffer, size_t count, loff_t *pos)
1216 char buf[20], *value, *pbuf;
1218 unsigned long length, i;
1221 length = count > 20 ? 20 : count;
1222 if (copy_from_user(&buf[0], buffer, length))
1224 buf[length - 1] = '\0'; /*Ensure end string */
1226 for (i = 0; i < 3; i++) {
1227 value = strsep(&pbuf, " ");
1228 if (value != NULL) {
1229 if (kstrtou8(value, 0, ®_val) < 0)
1233 viafb_write_reg_mask(CR9B, VIACR,
1237 viafb_write_reg_mask(SR65, VIASR,
1238 reg_val << 2, 0x0c);
1241 viafb_write_reg_mask(SR65, VIASR,
1254 static const struct file_operations viafb_dvp1_proc_fops = {
1255 .owner = THIS_MODULE,
1256 .open = viafb_dvp1_proc_open,
1258 .llseek = seq_lseek,
1259 .release = single_release,
1260 .write = viafb_dvp1_proc_write,
1263 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1266 dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1267 seq_printf(m, "%x\n", dfp_high);
1271 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1273 return single_open(file, viafb_dfph_proc_show, NULL);
1276 static ssize_t viafb_dfph_proc_write(struct file *file,
1277 const char __user *buffer, size_t count, loff_t *pos)
1281 err = kstrtou8_from_user(buffer, count, 0, ®_val);
1285 viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1289 static const struct file_operations viafb_dfph_proc_fops = {
1290 .owner = THIS_MODULE,
1291 .open = viafb_dfph_proc_open,
1293 .llseek = seq_lseek,
1294 .release = single_release,
1295 .write = viafb_dfph_proc_write,
1298 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1301 dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1302 seq_printf(m, "%x\n", dfp_low);
1306 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1308 return single_open(file, viafb_dfpl_proc_show, NULL);
1311 static ssize_t viafb_dfpl_proc_write(struct file *file,
1312 const char __user *buffer, size_t count, loff_t *pos)
1316 err = kstrtou8_from_user(buffer, count, 0, ®_val);
1320 viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1324 static const struct file_operations viafb_dfpl_proc_fops = {
1325 .owner = THIS_MODULE,
1326 .open = viafb_dfpl_proc_open,
1328 .llseek = seq_lseek,
1329 .release = single_release,
1330 .write = viafb_dfpl_proc_write,
1333 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1335 u8 vt1636_08 = 0, vt1636_09 = 0;
1336 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1339 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1340 &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1342 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1343 &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1344 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1349 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1352 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1353 &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1355 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1356 &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1357 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1365 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1367 return single_open(file, viafb_vt1636_proc_show, NULL);
1370 static ssize_t viafb_vt1636_proc_write(struct file *file,
1371 const char __user *buffer, size_t count, loff_t *pos)
1373 char buf[30], *value, *pbuf;
1374 struct IODATA reg_val;
1375 unsigned long length, i;
1378 length = count > 30 ? 30 : count;
1379 if (copy_from_user(&buf[0], buffer, length))
1381 buf[length - 1] = '\0'; /*Ensure end string */
1383 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1385 for (i = 0; i < 2; i++) {
1386 value = strsep(&pbuf, " ");
1387 if (value != NULL) {
1388 if (kstrtou8(value, 0, ®_val.Data) < 0)
1392 reg_val.Index = 0x08;
1393 reg_val.Mask = 0x0f;
1394 viafb_gpio_i2c_write_mask_lvds
1395 (viaparinfo->lvds_setting_info,
1397 chip_info->lvds_chip_info,
1401 reg_val.Index = 0x09;
1402 reg_val.Mask = 0x1f;
1403 viafb_gpio_i2c_write_mask_lvds
1404 (viaparinfo->lvds_setting_info,
1406 chip_info->lvds_chip_info,
1420 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1422 for (i = 0; i < 2; i++) {
1423 value = strsep(&pbuf, " ");
1424 if (value != NULL) {
1425 if (kstrtou8(value, 0, ®_val.Data) < 0)
1429 reg_val.Index = 0x08;
1430 reg_val.Mask = 0x0f;
1431 viafb_gpio_i2c_write_mask_lvds
1432 (viaparinfo->lvds_setting_info2,
1434 chip_info->lvds_chip_info2,
1438 reg_val.Index = 0x09;
1439 reg_val.Mask = 0x1f;
1440 viafb_gpio_i2c_write_mask_lvds
1441 (viaparinfo->lvds_setting_info2,
1443 chip_info->lvds_chip_info2,
1460 static const struct file_operations viafb_vt1636_proc_fops = {
1461 .owner = THIS_MODULE,
1462 .open = viafb_vt1636_proc_open,
1464 .llseek = seq_lseek,
1465 .release = single_release,
1466 .write = viafb_vt1636_proc_write,
1469 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1471 static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1473 via_odev_to_seq(m, supported_odev_map[
1474 viaparinfo->shared->chip_info.gfx_chip_name]);
1478 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1480 char buf[64], *ptr = buf;
1484 if (count < 1 || count > 63)
1486 if (copy_from_user(&buf[0], buffer, count))
1489 add = buf[0] == '+';
1490 sub = buf[0] == '-';
1493 devices = via_parse_odev(ptr, &ptr);
1507 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1509 via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1513 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1515 return single_open(file, viafb_iga1_odev_proc_show, NULL);
1518 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1519 const char __user *buffer, size_t count, loff_t *pos)
1521 u32 dev_on, dev_off, dev_old, dev_new;
1524 dev_old = dev_new = viaparinfo->shared->iga1_devices;
1525 res = odev_update(buffer, count, &dev_new);
1528 dev_off = dev_old & ~dev_new;
1529 dev_on = dev_new & ~dev_old;
1530 viaparinfo->shared->iga1_devices = dev_new;
1531 viaparinfo->shared->iga2_devices &= ~dev_new;
1532 via_set_state(dev_off, VIA_STATE_OFF);
1533 via_set_source(dev_new, IGA1);
1534 via_set_state(dev_on, VIA_STATE_ON);
1538 static const struct file_operations viafb_iga1_odev_proc_fops = {
1539 .owner = THIS_MODULE,
1540 .open = viafb_iga1_odev_proc_open,
1542 .llseek = seq_lseek,
1543 .release = single_release,
1544 .write = viafb_iga1_odev_proc_write,
1547 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1549 via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1553 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1555 return single_open(file, viafb_iga2_odev_proc_show, NULL);
1558 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1559 const char __user *buffer, size_t count, loff_t *pos)
1561 u32 dev_on, dev_off, dev_old, dev_new;
1564 dev_old = dev_new = viaparinfo->shared->iga2_devices;
1565 res = odev_update(buffer, count, &dev_new);
1568 dev_off = dev_old & ~dev_new;
1569 dev_on = dev_new & ~dev_old;
1570 viaparinfo->shared->iga2_devices = dev_new;
1571 viaparinfo->shared->iga1_devices &= ~dev_new;
1572 via_set_state(dev_off, VIA_STATE_OFF);
1573 via_set_source(dev_new, IGA2);
1574 via_set_state(dev_on, VIA_STATE_ON);
1578 static const struct file_operations viafb_iga2_odev_proc_fops = {
1579 .owner = THIS_MODULE,
1580 .open = viafb_iga2_odev_proc_open,
1582 .llseek = seq_lseek,
1583 .release = single_release,
1584 .write = viafb_iga2_odev_proc_write,
1587 #define IS_VT1636(lvds_chip) ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1588 static void viafb_init_proc(struct viafb_shared *shared)
1590 struct proc_dir_entry *iga1_entry, *iga2_entry,
1591 *viafb_entry = proc_mkdir("viafb", NULL);
1593 shared->proc_entry = viafb_entry;
1595 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1596 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1597 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1598 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1599 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1600 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1601 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1602 proc_create("vt1636", 0, viafb_entry,
1603 &viafb_vt1636_proc_fops);
1604 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1606 proc_create_single("supported_output_devices", 0, viafb_entry,
1607 viafb_sup_odev_proc_show);
1608 iga1_entry = proc_mkdir("iga1", viafb_entry);
1609 shared->iga1_proc_entry = iga1_entry;
1610 proc_create("output_devices", 0, iga1_entry,
1611 &viafb_iga1_odev_proc_fops);
1612 iga2_entry = proc_mkdir("iga2", viafb_entry);
1613 shared->iga2_proc_entry = iga2_entry;
1614 proc_create("output_devices", 0, iga2_entry,
1615 &viafb_iga2_odev_proc_fops);
1618 static void viafb_remove_proc(struct viafb_shared *shared)
1620 struct proc_dir_entry *viafb_entry = shared->proc_entry;
1625 remove_proc_entry("output_devices", shared->iga2_proc_entry);
1626 remove_proc_entry("iga2", viafb_entry);
1627 remove_proc_entry("output_devices", shared->iga1_proc_entry);
1628 remove_proc_entry("iga1", viafb_entry);
1629 remove_proc_entry("supported_output_devices", viafb_entry);
1631 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1632 remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1633 remove_proc_entry("dvp1", viafb_entry);
1634 remove_proc_entry("dfph", viafb_entry);
1635 remove_proc_entry("dfpl", viafb_entry);
1636 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1637 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1638 remove_proc_entry("vt1636", viafb_entry);
1639 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1641 remove_proc_entry("viafb", NULL);
1645 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1647 const struct fb_videomode *mode = NULL;
1651 if (devices == VIA_CRT)
1652 mode = via_aux_get_preferred_mode(
1653 viaparinfo->shared->i2c_26);
1654 else if (devices == VIA_DVP1)
1655 mode = via_aux_get_preferred_mode(
1656 viaparinfo->shared->i2c_31);
1661 } else if (machine_is_olpc()) {
1671 *xres = simple_strtoul(str, &ptr, 10);
1675 *yres = simple_strtoul(&ptr[1], &ptr, 10);
1684 static int viafb_suspend(void *unused)
1687 fb_set_suspend(viafbinfo, 1);
1688 viafb_sync(viafbinfo);
1694 static int viafb_resume(void *unused)
1697 if (viaparinfo->shared->vdev->engine_mmio)
1698 viafb_reset_engine(viaparinfo);
1699 viafb_set_par(viafbinfo);
1701 viafb_set_par(viafbinfo1);
1702 fb_set_suspend(viafbinfo, 0);
1708 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1709 .suspend = viafb_suspend,
1710 .resume = viafb_resume
1715 static void i2c_bus_probe(struct viafb_shared *shared)
1717 /* should be always CRT */
1718 printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1719 shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1721 /* seems to be usually DVP1 */
1722 printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1723 shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1725 /* FIXME: what is this? */
1726 if (!machine_is_olpc()) {
1727 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1728 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1731 printk(KERN_INFO "viafb: Finished I2C bus probing");
1734 static void i2c_bus_free(struct viafb_shared *shared)
1736 via_aux_free(shared->i2c_26);
1737 via_aux_free(shared->i2c_31);
1738 via_aux_free(shared->i2c_2C);
1741 int via_fb_pci_probe(struct viafb_dev *vdev)
1743 u32 default_xres, default_yres;
1744 struct fb_var_screeninfo default_var;
1746 u32 viafb_par_length;
1748 DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1749 memset(&default_var, 0, sizeof(default_var));
1750 viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1752 /* Allocate fb_info and ***_par here, also including some other needed
1755 viafbinfo = framebuffer_alloc(viafb_par_length +
1756 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1759 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1763 viaparinfo = (struct viafb_par *)viafbinfo->par;
1764 viaparinfo->shared = viafbinfo->par + viafb_par_length;
1765 viaparinfo->shared->vdev = vdev;
1766 viaparinfo->vram_addr = 0;
1767 viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1768 viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1769 viaparinfo->lvds_setting_info2 =
1770 &viaparinfo->shared->lvds_setting_info2;
1771 viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1773 i2c_bus_probe(viaparinfo->shared);
1779 viafb_init_chip_info(vdev->chip_type);
1781 * The framebuffer will have been successfully mapped by
1782 * the core (or we'd not be here), but we still need to
1783 * set up our own accounting.
1785 viaparinfo->fbmem = vdev->fbmem_start;
1786 viaparinfo->memsize = vdev->fbmem_len;
1787 viaparinfo->fbmem_free = viaparinfo->memsize;
1788 viaparinfo->fbmem_used = 0;
1789 viafbinfo->screen_base = vdev->fbmem;
1791 viafbinfo->fix.mmio_start = vdev->engine_start;
1792 viafbinfo->fix.mmio_len = vdev->engine_len;
1793 viafbinfo->node = 0;
1794 viafbinfo->fbops = &viafb_ops;
1795 viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1797 viafbinfo->pseudo_palette = pseudo_pal;
1798 if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1799 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1800 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT;
1801 default_var.accel_flags = FB_ACCELF_TEXT;
1803 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1804 default_var.accel_flags = 0;
1807 if (viafb_second_size && (viafb_second_size < 8)) {
1808 viafb_second_offset = viaparinfo->fbmem_free -
1809 viafb_second_size * 1024 * 1024;
1811 viafb_second_size = 8;
1812 viafb_second_offset = viaparinfo->fbmem_free -
1813 viafb_second_size * 1024 * 1024;
1816 parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1817 &default_xres, &default_yres);
1818 if (viafb_SAMM_ON == 1)
1819 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1820 &viafb_second_xres, &viafb_second_yres);
1822 default_var.xres = default_xres;
1823 default_var.yres = default_yres;
1824 default_var.xres_virtual = default_xres;
1825 default_var.yres_virtual = default_yres;
1826 default_var.bits_per_pixel = viafb_bpp;
1827 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1828 default_var.xres, default_var.yres, viafb_refresh));
1829 viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1830 viafbinfo->var = default_var;
1832 if (viafb_dual_fb) {
1833 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1837 "allocate the second framebuffer struct error\n");
1839 goto out_fb_release;
1841 viaparinfo1 = viafbinfo1->par;
1842 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1843 viaparinfo1->vram_addr = viafb_second_offset;
1844 viaparinfo1->memsize = viaparinfo->memsize -
1845 viafb_second_offset;
1846 viaparinfo->memsize = viafb_second_offset;
1847 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1849 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1850 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1851 viaparinfo1->fbmem_used;
1852 viaparinfo->fbmem_free = viaparinfo->memsize;
1853 viaparinfo->fbmem_used = 0;
1855 viaparinfo->iga_path = IGA1;
1856 viaparinfo1->iga_path = IGA2;
1857 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1858 viafbinfo1->par = viaparinfo1;
1859 viafbinfo1->screen_base = viafbinfo->screen_base +
1860 viafb_second_offset;
1862 default_var.xres = viafb_second_xres;
1863 default_var.yres = viafb_second_yres;
1864 default_var.xres_virtual = viafb_second_xres;
1865 default_var.yres_virtual = viafb_second_yres;
1866 default_var.bits_per_pixel = viafb_bpp1;
1867 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1868 default_var.xres, default_var.yres, viafb_refresh1));
1870 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1871 viafb_check_var(&default_var, viafbinfo1);
1872 viafbinfo1->var = default_var;
1873 viafb_update_fix(viafbinfo1);
1874 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1878 viafb_check_var(&viafbinfo->var, viafbinfo);
1879 viafb_update_fix(viafbinfo);
1880 viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1882 default_var.activate = FB_ACTIVATE_NOW;
1883 rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1885 goto out_fb1_release;
1887 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1888 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1889 rc = register_framebuffer(viafbinfo1);
1891 goto out_dealloc_cmap;
1893 rc = register_framebuffer(viafbinfo);
1895 goto out_fb1_unreg_lcd_cle266;
1897 if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1898 || (viaparinfo->chip_info->gfx_chip_name !=
1899 UNICHROME_CLE266))) {
1900 rc = register_framebuffer(viafbinfo1);
1904 DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1905 viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1906 default_var.yres, default_var.bits_per_pixel);
1908 viafb_init_proc(viaparinfo->shared);
1909 viafb_init_dac(IGA2);
1912 viafb_pm_register(&viafb_fb_pm_hooks);
1917 unregister_framebuffer(viafbinfo);
1918 out_fb1_unreg_lcd_cle266:
1919 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1920 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1921 unregister_framebuffer(viafbinfo1);
1923 fb_dealloc_cmap(&viafbinfo->cmap);
1925 framebuffer_release(viafbinfo1);
1927 i2c_bus_free(viaparinfo->shared);
1928 framebuffer_release(viafbinfo);
1932 void via_fb_pci_remove(struct pci_dev *pdev)
1934 DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1935 fb_dealloc_cmap(&viafbinfo->cmap);
1936 unregister_framebuffer(viafbinfo);
1938 unregister_framebuffer(viafbinfo1);
1939 viafb_remove_proc(viaparinfo->shared);
1940 i2c_bus_free(viaparinfo->shared);
1941 framebuffer_release(viafbinfo);
1943 framebuffer_release(viafbinfo1);
1947 static int __init viafb_setup(void)
1952 DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1954 if (fb_get_options("viafb", &options))
1957 if (!options || !*options)
1960 while ((this_opt = strsep(&options, ",")) != NULL) {
1964 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1965 viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1966 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1967 viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1968 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1969 if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1971 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1972 if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1974 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1975 if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1977 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1978 if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1980 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1981 if (kstrtoint(this_opt + 21, 0,
1982 &viafb_lcd_dsp_method) < 0)
1984 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1985 if (kstrtoint(this_opt + 19, 0,
1986 &viafb_lcd_panel_id) < 0)
1988 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1989 if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1991 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1992 if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1994 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1995 viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1996 } else if (!strncmp(this_opt,
1997 "viafb_display_hardware_layout=", 30)) {
1998 if (kstrtoint(this_opt + 30, 0,
1999 &viafb_display_hardware_layout) < 0)
2001 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2002 if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2004 } else if (!strncmp(this_opt,
2005 "viafb_platform_epia_dvi=", 24)) {
2006 if (kstrtoint(this_opt + 24, 0,
2007 &viafb_platform_epia_dvi) < 0)
2009 } else if (!strncmp(this_opt,
2010 "viafb_device_lcd_dualedge=", 26)) {
2011 if (kstrtoint(this_opt + 26, 0,
2012 &viafb_device_lcd_dualedge) < 0)
2014 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2015 if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2017 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2018 if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2020 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2021 viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2022 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2023 viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2031 * These are called out of via-core for now.
2033 int __init viafb_init(void)
2035 u32 dummy_x, dummy_y;
2038 if (machine_is_olpc())
2039 /* Apply XO-1.5-specific configuration. */
2040 viafb_lcd_panel_id = 23;
2047 if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2048 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2049 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2050 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2051 || viafb_bpp < 0 || viafb_bpp > 32
2052 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2053 || parse_active_dev())
2057 "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2058 VERSION_MAJOR, VERSION_MINOR);
2062 void __exit viafb_exit(void)
2064 DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2067 static struct fb_ops viafb_ops = {
2068 .owner = THIS_MODULE,
2069 .fb_open = viafb_open,
2070 .fb_release = viafb_release,
2071 .fb_check_var = viafb_check_var,
2072 .fb_set_par = viafb_set_par,
2073 .fb_setcolreg = viafb_setcolreg,
2074 .fb_pan_display = viafb_pan_display,
2075 .fb_blank = viafb_blank,
2076 .fb_fillrect = viafb_fillrect,
2077 .fb_copyarea = viafb_copyarea,
2078 .fb_imageblit = viafb_imageblit,
2079 .fb_cursor = viafb_cursor,
2080 .fb_ioctl = viafb_ioctl,
2081 .fb_sync = viafb_sync,
2086 module_param(viafb_mode, charp, S_IRUSR);
2087 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2089 module_param(viafb_mode1, charp, S_IRUSR);
2090 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2092 module_param(viafb_bpp, int, S_IRUSR);
2093 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2095 module_param(viafb_bpp1, int, S_IRUSR);
2096 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2098 module_param(viafb_refresh, int, S_IRUSR);
2099 MODULE_PARM_DESC(viafb_refresh,
2100 "Set CRT viafb_refresh rate (default = 60)");
2102 module_param(viafb_refresh1, int, S_IRUSR);
2103 MODULE_PARM_DESC(viafb_refresh1,
2104 "Set CRT refresh rate (default = 60)");
2106 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2107 MODULE_PARM_DESC(viafb_lcd_panel_id,
2108 "Set Flat Panel type(Default=1024x768)");
2110 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2111 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2112 "Set Flat Panel display scaling method.(Default=Expandsion)");
2114 module_param(viafb_SAMM_ON, int, S_IRUSR);
2115 MODULE_PARM_DESC(viafb_SAMM_ON,
2116 "Turn on/off flag of SAMM(Default=OFF)");
2118 module_param(viafb_accel, int, S_IRUSR);
2119 MODULE_PARM_DESC(viafb_accel,
2120 "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2122 module_param(viafb_active_dev, charp, S_IRUSR);
2123 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2125 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2126 MODULE_PARM_DESC(viafb_display_hardware_layout,
2127 "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2129 module_param(viafb_second_size, int, S_IRUSR);
2130 MODULE_PARM_DESC(viafb_second_size,
2131 "Set secondary device memory size");
2133 module_param(viafb_dual_fb, int, S_IRUSR);
2134 MODULE_PARM_DESC(viafb_dual_fb,
2135 "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2137 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2138 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2139 "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2141 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2142 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2143 "Turn on/off flag of dual edge panel.(Default = OFF)");
2145 module_param(viafb_bus_width, int, S_IRUSR);
2146 MODULE_PARM_DESC(viafb_bus_width,
2147 "Set bus width of panel.(Default = 12)");
2149 module_param(viafb_lcd_mode, int, S_IRUSR);
2150 MODULE_PARM_DESC(viafb_lcd_mode,
2151 "Set Flat Panel mode(Default=OPENLDI)");
2153 module_param(viafb_lcd_port, charp, S_IRUSR);
2154 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2156 module_param(viafb_dvi_port, charp, S_IRUSR);
2157 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2159 MODULE_LICENSE("GPL");