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>
31 static char *viafb_name = "Via";
32 static u32 pseudo_pal[17];
35 static char *viafb_mode;
36 static char *viafb_mode1;
37 static int viafb_bpp = 32;
38 static int viafb_bpp1 = 32;
40 static unsigned int viafb_second_xres = 640;
41 static unsigned int viafb_second_yres = 480;
42 static unsigned int viafb_second_offset;
43 static int viafb_second_size;
45 static int viafb_accel = 1;
47 /* Added for specifying active devices.*/
48 static char *viafb_active_dev;
50 /*Added for specify lcd output port*/
51 static char *viafb_lcd_port = "";
52 static char *viafb_dvi_port = "";
54 static void retrieve_device_setting(struct viafb_ioctl_setting
56 static int viafb_pan_display(struct fb_var_screeninfo *var,
57 struct fb_info *info);
59 static struct fb_ops viafb_ops;
61 /* supported output devices on each IGP
62 * only CX700, VX800, VX855, VX900 were documented
63 * VIA_CRT should be everywhere
64 * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
65 * source selection on CX700 and later
66 * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
68 static const u32 supported_odev_map[] = {
69 [UNICHROME_CLE266] = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
70 [UNICHROME_K400] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
72 [UNICHROME_K800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
74 [UNICHROME_PM800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
76 [UNICHROME_CN700] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
78 [UNICHROME_CX700] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
79 [UNICHROME_CN750] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
80 [UNICHROME_K8M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
81 [UNICHROME_P4M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
82 [UNICHROME_P4M900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
83 [UNICHROME_VX800] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
84 [UNICHROME_VX855] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
85 [UNICHROME_VX900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
88 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
91 var->red.msb_right = 0;
92 var->green.msb_right = 0;
93 var->blue.msb_right = 0;
94 var->transp.offset = 0;
95 var->transp.length = 0;
96 var->transp.msb_right = 0;
100 var->bits_per_pixel = 8;
102 var->green.offset = 0;
103 var->blue.offset = 0;
105 var->green.length = 8;
106 var->blue.length = 8;
109 var->bits_per_pixel = 16;
110 var->red.offset = 10;
111 var->green.offset = 5;
112 var->blue.offset = 0;
114 var->green.length = 5;
115 var->blue.length = 5;
118 var->bits_per_pixel = 16;
119 var->red.offset = 11;
120 var->green.offset = 5;
121 var->blue.offset = 0;
123 var->green.length = 6;
124 var->blue.length = 5;
127 var->bits_per_pixel = 32;
128 var->red.offset = 16;
129 var->green.offset = 8;
130 var->blue.offset = 0;
132 var->green.length = 8;
133 var->blue.length = 8;
136 var->bits_per_pixel = 32;
137 var->red.offset = 20;
138 var->green.offset = 10;
139 var->blue.offset = 0;
140 var->red.length = 10;
141 var->green.length = 10;
142 var->blue.length = 10;
147 static void viafb_update_fix(struct fb_info *info)
149 u32 bpp = info->var.bits_per_pixel;
152 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
153 info->fix.line_length = (info->var.xres_virtual * bpp / 8 + 7) & ~7;
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 VideoModeTable *vmode_entry;
203 struct viafb_par *ppar = info->par;
206 DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
208 /* HW neither support interlacte nor double-scaned mode */
209 if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
212 vmode_entry = viafb_get_mode(var->xres, var->yres);
215 "viafb: Mode %dx%dx%d not supported!!\n",
216 var->xres, var->yres, var->bits_per_pixel);
220 depth = fb_get_color_depth(var, &info->fix);
222 depth = var->bits_per_pixel;
224 if (depth < 0 || depth > 32)
228 else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
230 else if (depth == 30)
234 else if (depth <= 16)
239 viafb_fill_var_color_info(var, depth);
240 line = (var->xres_virtual * var->bits_per_pixel / 8 + 7) & ~7;
241 if (line * var->yres_virtual > ppar->memsize)
244 /* Based on var passed in to calculate the refresh,
245 * because our driver use some modes special.
247 refresh = viafb_get_refresh(var->xres, var->yres,
248 get_var_refresh(var));
250 /* Adjust var according to our driver's own table */
251 viafb_fill_var_timing_info(var, refresh, vmode_entry);
252 if (var->accel_flags & FB_ACCELF_TEXT &&
253 !ppar->shared->vdev->engine_mmio)
254 var->accel_flags = 0;
259 static int viafb_set_par(struct fb_info *info)
261 struct viafb_par *viapar = info->par;
262 struct VideoModeTable *vmode_entry, *vmode_entry1 = NULL;
264 DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
266 viafb_update_fix(info);
267 viapar->depth = fb_get_color_depth(&info->var, &info->fix);
268 viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
269 viafbinfo->var.bits_per_pixel, 0);
271 vmode_entry = viafb_get_mode(viafbinfo->var.xres, viafbinfo->var.yres);
273 vmode_entry1 = viafb_get_mode(viafbinfo1->var.xres,
274 viafbinfo1->var.yres);
275 viafb_update_device_setting(viafbinfo1->var.xres,
276 viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
278 } else if (viafb_SAMM_ON == 1) {
280 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
281 viafb_second_xres, viafb_second_yres, viafb_bpp1);
282 vmode_entry1 = viafb_get_mode(viafb_second_xres,
285 viafb_update_device_setting(viafb_second_xres,
286 viafb_second_yres, viafb_bpp1, 1);
289 refresh = viafb_get_refresh(info->var.xres, info->var.yres,
290 get_var_refresh(&info->var));
292 if (viafb_dual_fb && viapar->iga_path == IGA2) {
293 viafb_bpp1 = info->var.bits_per_pixel;
294 viafb_refresh1 = refresh;
296 viafb_bpp = info->var.bits_per_pixel;
297 viafb_refresh = refresh;
300 if (info->var.accel_flags & FB_ACCELF_TEXT)
301 info->flags &= ~FBINFO_HWACCEL_DISABLED;
303 info->flags |= FBINFO_HWACCEL_DISABLED;
304 viafb_setmode(vmode_entry, info->var.bits_per_pixel,
305 vmode_entry1, viafb_bpp1);
306 viafb_pan_display(&info->var, info);
312 /* Set one color register */
313 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
314 unsigned blue, unsigned transp, struct fb_info *info)
316 struct viafb_par *viapar = info->par;
319 if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
323 if (!viafb_dual_fb || viapar->iga_path == IGA1)
324 viafb_set_primary_color_register(regno, red >> 8,
325 green >> 8, blue >> 8);
327 if (!viafb_dual_fb || viapar->iga_path == IGA2)
328 viafb_set_secondary_color_register(regno, red >> 8,
329 green >> 8, blue >> 8);
334 r = (red >> (16 - info->var.red.length))
335 << info->var.red.offset;
336 b = (blue >> (16 - info->var.blue.length))
337 << info->var.blue.offset;
338 g = (green >> (16 - info->var.green.length))
339 << info->var.green.offset;
340 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
346 static int viafb_pan_display(struct fb_var_screeninfo *var,
347 struct fb_info *info)
349 struct viafb_par *viapar = info->par;
350 u32 vram_addr = (var->yoffset * var->xres_virtual + var->xoffset)
351 * (var->bits_per_pixel / 8) + viapar->vram_addr;
353 DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
354 if (!viafb_dual_fb) {
355 via_set_primary_address(vram_addr);
356 via_set_secondary_address(vram_addr);
357 } else if (viapar->iga_path == IGA1)
358 via_set_primary_address(vram_addr);
360 via_set_secondary_address(vram_addr);
365 static int viafb_blank(int blank_mode, struct fb_info *info)
367 DEBUG_MSG(KERN_INFO "viafb_blank!\n");
368 /* clear DPMS setting */
370 switch (blank_mode) {
371 case FB_BLANK_UNBLANK:
372 /* Screen: On, HSync: On, VSync: On */
373 /* control CRT monitor power management */
374 via_set_state(VIA_CRT, VIA_STATE_ON);
376 case FB_BLANK_HSYNC_SUSPEND:
377 /* Screen: Off, HSync: Off, VSync: On */
378 /* control CRT monitor power management */
379 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
381 case FB_BLANK_VSYNC_SUSPEND:
382 /* Screen: Off, HSync: On, VSync: Off */
383 /* control CRT monitor power management */
384 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
386 case FB_BLANK_POWERDOWN:
387 /* Screen: Off, HSync: Off, VSync: Off */
388 /* control CRT monitor power management */
389 via_set_state(VIA_CRT, VIA_STATE_OFF);
396 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
399 struct viafb_ioctl_mode viamode;
400 struct viafb_ioctl_samm viasamm;
401 struct viafb_driver_version driver_version;
402 struct fb_var_screeninfo sec_var;
403 struct _panel_size_pos_info panel_pos_size_para;
404 struct viafb_ioctl_setting viafb_setting;
405 struct device_t active_dev;
408 u32 *viafb_gamma_table;
409 char driver_name[] = "viafb";
411 u32 __user *argp = (u32 __user *) arg;
414 DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
415 printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
416 memset(&u, 0, sizeof(u));
419 case VIAFB_GET_CHIP_INFO:
420 if (copy_to_user(argp, viaparinfo->chip_info,
421 sizeof(struct chip_information)))
424 case VIAFB_GET_INFO_SIZE:
425 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
427 return viafb_ioctl_get_viafb_info(arg);
429 return put_user(viafb_ioctl_hotplug(info->var.xres,
431 info->var.bits_per_pixel), argp);
432 case VIAFB_SET_HOTPLUG_FLAG:
433 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
435 viafb_hotplug = (gpu32) ? 1 : 0;
437 case VIAFB_GET_RESOLUTION:
438 u.viamode.xres = (u32) viafb_hotplug_Xres;
439 u.viamode.yres = (u32) viafb_hotplug_Yres;
440 u.viamode.refresh = (u32) viafb_hotplug_refresh;
441 u.viamode.bpp = (u32) viafb_hotplug_bpp;
442 if (viafb_SAMM_ON == 1) {
443 u.viamode.xres_sec = viafb_second_xres;
444 u.viamode.yres_sec = viafb_second_yres;
445 u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
446 u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
447 u.viamode.refresh_sec = viafb_refresh1;
448 u.viamode.bpp_sec = viafb_bpp1;
450 u.viamode.xres_sec = 0;
451 u.viamode.yres_sec = 0;
452 u.viamode.virtual_xres_sec = 0;
453 u.viamode.virtual_yres_sec = 0;
454 u.viamode.refresh_sec = 0;
455 u.viamode.bpp_sec = 0;
457 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
460 case VIAFB_GET_SAMM_INFO:
461 u.viasamm.samm_status = viafb_SAMM_ON;
463 if (viafb_SAMM_ON == 1) {
465 u.viasamm.size_prim = viaparinfo->fbmem_free;
466 u.viasamm.size_sec = viaparinfo1->fbmem_free;
468 if (viafb_second_size) {
469 u.viasamm.size_prim =
470 viaparinfo->fbmem_free -
471 viafb_second_size * 1024 * 1024;
473 viafb_second_size * 1024 * 1024;
475 u.viasamm.size_prim =
476 viaparinfo->fbmem_free >> 1;
478 (viaparinfo->fbmem_free >> 1);
481 u.viasamm.mem_base = viaparinfo->fbmem;
482 u.viasamm.offset_sec = viafb_second_offset;
484 u.viasamm.size_prim =
485 viaparinfo->memsize - viaparinfo->fbmem_used;
486 u.viasamm.size_sec = 0;
487 u.viasamm.mem_base = viaparinfo->fbmem;
488 u.viasamm.offset_sec = 0;
491 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
495 case VIAFB_TURN_ON_OUTPUT_DEVICE:
496 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
498 if (gpu32 & CRT_Device)
499 via_set_state(VIA_CRT, VIA_STATE_ON);
500 if (gpu32 & DVI_Device)
502 if (gpu32 & LCD_Device)
505 case VIAFB_TURN_OFF_OUTPUT_DEVICE:
506 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
508 if (gpu32 & CRT_Device)
509 via_set_state(VIA_CRT, VIA_STATE_OFF);
510 if (gpu32 & DVI_Device)
512 if (gpu32 & LCD_Device)
515 case VIAFB_GET_DEVICE:
516 u.active_dev.crt = viafb_CRT_ON;
517 u.active_dev.dvi = viafb_DVI_ON;
518 u.active_dev.lcd = viafb_LCD_ON;
519 u.active_dev.samm = viafb_SAMM_ON;
520 u.active_dev.primary_dev = viafb_primary_dev;
522 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
523 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
524 u.active_dev.lcd_mode = viafb_lcd_mode;
526 u.active_dev.xres = viafb_hotplug_Xres;
527 u.active_dev.yres = viafb_hotplug_Yres;
529 u.active_dev.xres1 = viafb_second_xres;
530 u.active_dev.yres1 = viafb_second_yres;
532 u.active_dev.bpp = viafb_bpp;
533 u.active_dev.bpp1 = viafb_bpp1;
534 u.active_dev.refresh = viafb_refresh;
535 u.active_dev.refresh1 = viafb_refresh1;
537 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
538 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
539 u.active_dev.bus_width = viafb_bus_width;
541 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
545 case VIAFB_GET_DRIVER_VERSION:
546 u.driver_version.iMajorNum = VERSION_MAJOR;
547 u.driver_version.iKernelNum = VERSION_KERNEL;
548 u.driver_version.iOSNum = VERSION_OS;
549 u.driver_version.iMinorNum = VERSION_MINOR;
551 if (copy_to_user(argp, &u.driver_version,
552 sizeof(u.driver_version)))
557 case VIAFB_GET_DEVICE_INFO:
559 retrieve_device_setting(&u.viafb_setting);
561 if (copy_to_user(argp, &u.viafb_setting,
562 sizeof(u.viafb_setting)))
567 case VIAFB_GET_DEVICE_SUPPORT:
568 viafb_get_device_support_state(&state_info);
569 if (put_user(state_info, argp))
573 case VIAFB_GET_DEVICE_CONNECT:
574 viafb_get_device_connect_state(&state_info);
575 if (put_user(state_info, argp))
579 case VIAFB_GET_PANEL_SUPPORT_EXPAND:
581 viafb_lcd_get_support_expand_state(info->var.xres,
583 if (put_user(state_info, argp))
587 case VIAFB_GET_DRIVER_NAME:
588 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
592 case VIAFB_SET_GAMMA_LUT:
593 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
594 if (IS_ERR(viafb_gamma_table))
595 return PTR_ERR(viafb_gamma_table);
596 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
597 kfree(viafb_gamma_table);
600 case VIAFB_GET_GAMMA_LUT:
601 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
602 if (!viafb_gamma_table)
604 viafb_get_gamma_table(viafb_gamma_table);
605 if (copy_to_user(argp, viafb_gamma_table,
606 256 * sizeof(u32))) {
607 kfree(viafb_gamma_table);
610 kfree(viafb_gamma_table);
613 case VIAFB_GET_GAMMA_SUPPORT_STATE:
614 viafb_get_gamma_support_state(viafb_bpp, &state_info);
615 if (put_user(state_info, argp))
618 case VIAFB_SYNC_SURFACE:
619 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
621 case VIAFB_GET_DRIVER_CAPS:
624 case VIAFB_GET_PANEL_MAX_SIZE:
625 if (copy_from_user(&u.panel_pos_size_para, argp,
626 sizeof(u.panel_pos_size_para)))
628 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
629 if (copy_to_user(argp, &u.panel_pos_size_para,
630 sizeof(u.panel_pos_size_para)))
633 case VIAFB_GET_PANEL_MAX_POSITION:
634 if (copy_from_user(&u.panel_pos_size_para, argp,
635 sizeof(u.panel_pos_size_para)))
637 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
638 if (copy_to_user(argp, &u.panel_pos_size_para,
639 sizeof(u.panel_pos_size_para)))
643 case VIAFB_GET_PANEL_POSITION:
644 if (copy_from_user(&u.panel_pos_size_para, argp,
645 sizeof(u.panel_pos_size_para)))
647 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
648 if (copy_to_user(argp, &u.panel_pos_size_para,
649 sizeof(u.panel_pos_size_para)))
652 case VIAFB_GET_PANEL_SIZE:
653 if (copy_from_user(&u.panel_pos_size_para, argp,
654 sizeof(u.panel_pos_size_para)))
656 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
657 if (copy_to_user(argp, &u.panel_pos_size_para,
658 sizeof(u.panel_pos_size_para)))
662 case VIAFB_SET_PANEL_POSITION:
663 if (copy_from_user(&u.panel_pos_size_para, argp,
664 sizeof(u.panel_pos_size_para)))
667 case VIAFB_SET_PANEL_SIZE:
668 if (copy_from_user(&u.panel_pos_size_para, argp,
669 sizeof(u.panel_pos_size_para)))
680 static void viafb_fillrect(struct fb_info *info,
681 const struct fb_fillrect *rect)
683 struct viafb_par *viapar = info->par;
684 struct viafb_shared *shared = viapar->shared;
688 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
689 cfb_fillrect(info, rect);
693 if (!rect->width || !rect->height)
696 if (info->fix.visual == FB_VISUAL_TRUECOLOR)
697 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
699 fg_color = rect->color;
701 if (rect->rop == ROP_XOR)
706 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
707 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
708 rect->width, rect->height, info->var.bits_per_pixel,
709 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
710 NULL, 0, 0, 0, 0, fg_color, 0, rop))
711 cfb_fillrect(info, rect);
714 static void viafb_copyarea(struct fb_info *info,
715 const struct fb_copyarea *area)
717 struct viafb_par *viapar = info->par;
718 struct viafb_shared *shared = viapar->shared;
720 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
721 cfb_copyarea(info, area);
725 if (!area->width || !area->height)
728 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
729 if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
730 area->width, area->height, info->var.bits_per_pixel,
731 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
732 NULL, viapar->vram_addr, info->fix.line_length,
733 area->sx, area->sy, 0, 0, 0))
734 cfb_copyarea(info, area);
737 static void viafb_imageblit(struct fb_info *info,
738 const struct fb_image *image)
740 struct viafb_par *viapar = info->par;
741 struct viafb_shared *shared = viapar->shared;
742 u32 fg_color = 0, bg_color = 0;
745 if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
746 (image->depth != 1 && image->depth != viapar->depth)) {
747 cfb_imageblit(info, image);
751 if (image->depth == 1) {
752 op = VIA_BITBLT_MONO;
753 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
755 ((u32 *)info->pseudo_palette)[image->fg_color];
757 ((u32 *)info->pseudo_palette)[image->bg_color];
759 fg_color = image->fg_color;
760 bg_color = image->bg_color;
763 op = VIA_BITBLT_COLOR;
765 DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
766 if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
767 image->width, image->height, info->var.bits_per_pixel,
768 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
769 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
770 cfb_imageblit(info, image);
773 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
775 struct viafb_par *viapar = info->par;
776 void __iomem *engine = viapar->shared->vdev->engine_mmio;
777 u32 temp, xx, yy, bg_color = 0, fg_color = 0,
778 chip_name = viapar->shared->chip_info.gfx_chip_name;
779 int i, j = 0, cur_size = 64;
781 if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
784 /* LCD ouput does not support hw cursors (at least on VN896) */
785 if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
789 viafb_show_hw_cursor(info, HW_Cursor_OFF);
791 if (cursor->set & FB_CUR_SETHOT) {
792 temp = (cursor->hot.x << 16) + cursor->hot.y;
793 writel(temp, engine + VIA_REG_CURSOR_ORG);
796 if (cursor->set & FB_CUR_SETPOS) {
797 yy = cursor->image.dy - info->var.yoffset;
798 xx = cursor->image.dx - info->var.xoffset;
801 writel(temp, engine + VIA_REG_CURSOR_POS);
804 if (cursor->image.width <= 32 && cursor->image.height <= 32)
806 else if (cursor->image.width <= 64 && cursor->image.height <= 64)
809 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
810 "%dx%d", cursor->image.width, cursor->image.height);
814 if (cursor->set & FB_CUR_SETSIZE) {
815 temp = readl(engine + VIA_REG_CURSOR_MODE);
821 writel(temp, engine + VIA_REG_CURSOR_MODE);
824 if (cursor->set & FB_CUR_SETCMAP) {
825 fg_color = cursor->image.fg_color;
826 bg_color = cursor->image.bg_color;
827 if (chip_name == UNICHROME_CX700 ||
828 chip_name == UNICHROME_VX800 ||
829 chip_name == UNICHROME_VX855 ||
830 chip_name == UNICHROME_VX900) {
832 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
833 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
834 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
836 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
837 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
838 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
841 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
842 (info->cmap.green[fg_color] & 0xFF00) |
843 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
845 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
846 (info->cmap.green[bg_color] & 0xFF00) |
847 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
850 writel(bg_color, engine + VIA_REG_CURSOR_BG);
851 writel(fg_color, engine + VIA_REG_CURSOR_FG);
854 if (cursor->set & FB_CUR_SETSHAPE) {
856 u8 data[CURSOR_SIZE];
857 u32 bak[CURSOR_SIZE / 4];
858 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
859 int size = ((cursor->image.width + 7) >> 3) *
860 cursor->image.height;
865 if (cur_size == 32) {
866 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
867 cr_data->bak[i] = 0x0;
868 cr_data->bak[i + 1] = 0xFFFFFFFF;
872 for (i = 0; i < (CURSOR_SIZE / 4); i++) {
873 cr_data->bak[i] = 0x0;
874 cr_data->bak[i + 1] = 0x0;
875 cr_data->bak[i + 2] = 0xFFFFFFFF;
876 cr_data->bak[i + 3] = 0xFFFFFFFF;
881 switch (cursor->rop) {
883 for (i = 0; i < size; i++)
884 cr_data->data[i] = cursor->mask[i];
888 for (i = 0; i < size; i++)
889 cr_data->data[i] = cursor->mask[i];
895 if (cur_size == 32) {
896 for (i = 0; i < size; i++) {
897 cr_data->bak[j] = (u32) cr_data->data[i];
898 cr_data->bak[j + 1] = ~cr_data->bak[j];
902 for (i = 0; i < size; i++) {
903 cr_data->bak[j] = (u32) cr_data->data[i];
904 cr_data->bak[j + 1] = 0x0;
905 cr_data->bak[j + 2] = ~cr_data->bak[j];
906 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
911 memcpy_toio(viafbinfo->screen_base + viapar->shared->
912 cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
917 viafb_show_hw_cursor(info, HW_Cursor_ON);
922 static int viafb_sync(struct fb_info *info)
924 if (!(info->flags & FBINFO_HWACCEL_DISABLED))
925 viafb_wait_engine_idle(info);
929 static int get_primary_device(void)
931 int primary_device = 0;
932 /* Rule: device on iga1 path are the primary device. */
935 if (viaparinfo->shared->iga1_devices & VIA_CRT) {
936 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
937 primary_device = CRT_Device;
941 if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
942 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
944 tmds_setting_info->iga_path);
945 primary_device = DVI_Device;
949 if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
950 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
952 lvds_setting_info->iga_path);
953 primary_device = LCD_Device;
957 if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
958 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
960 lvds_setting_info2->iga_path);
961 primary_device = LCD2_Device;
965 return primary_device;
968 static void retrieve_device_setting(struct viafb_ioctl_setting
972 /* get device status */
973 if (viafb_CRT_ON == 1)
974 setting_info->device_status = CRT_Device;
975 if (viafb_DVI_ON == 1)
976 setting_info->device_status |= DVI_Device;
977 if (viafb_LCD_ON == 1)
978 setting_info->device_status |= LCD_Device;
979 if (viafb_LCD2_ON == 1)
980 setting_info->device_status |= LCD2_Device;
982 setting_info->samm_status = viafb_SAMM_ON;
983 setting_info->primary_device = get_primary_device();
985 setting_info->first_dev_bpp = viafb_bpp;
986 setting_info->second_dev_bpp = viafb_bpp1;
988 setting_info->first_dev_refresh = viafb_refresh;
989 setting_info->second_dev_refresh = viafb_refresh1;
991 setting_info->first_dev_hor_res = viafb_hotplug_Xres;
992 setting_info->first_dev_ver_res = viafb_hotplug_Yres;
993 setting_info->second_dev_hor_res = viafb_second_xres;
994 setting_info->second_dev_ver_res = viafb_second_yres;
996 /* Get lcd attributes */
997 setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
998 setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
999 setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
1002 static int __init parse_active_dev(void)
1004 viafb_CRT_ON = STATE_OFF;
1005 viafb_DVI_ON = STATE_OFF;
1006 viafb_LCD_ON = STATE_OFF;
1007 viafb_LCD2_ON = STATE_OFF;
1008 /* 1. Modify the active status of devices. */
1009 /* 2. Keep the order of devices, so we can set corresponding
1010 IGA path to devices in SAMM case. */
1011 /* Note: The previous of active_dev is primary device,
1012 and the following is secondary device. */
1013 if (!viafb_active_dev) {
1014 viafb_CRT_ON = STATE_ON;
1015 viafb_SAMM_ON = STATE_OFF;
1016 } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1018 viafb_CRT_ON = STATE_ON;
1019 viafb_DVI_ON = STATE_ON;
1020 viafb_primary_dev = CRT_Device;
1021 } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1023 viafb_CRT_ON = STATE_ON;
1024 viafb_DVI_ON = STATE_ON;
1025 viafb_primary_dev = DVI_Device;
1026 } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1028 viafb_CRT_ON = STATE_ON;
1029 viafb_LCD_ON = STATE_ON;
1030 viafb_primary_dev = CRT_Device;
1031 } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1033 viafb_CRT_ON = STATE_ON;
1034 viafb_LCD_ON = STATE_ON;
1035 viafb_primary_dev = LCD_Device;
1036 } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1038 viafb_DVI_ON = STATE_ON;
1039 viafb_LCD_ON = STATE_ON;
1040 viafb_primary_dev = DVI_Device;
1041 } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1043 viafb_DVI_ON = STATE_ON;
1044 viafb_LCD_ON = STATE_ON;
1045 viafb_primary_dev = LCD_Device;
1046 } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1047 viafb_LCD_ON = STATE_ON;
1048 viafb_LCD2_ON = STATE_ON;
1049 viafb_primary_dev = LCD_Device;
1050 } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1051 viafb_LCD_ON = STATE_ON;
1052 viafb_LCD2_ON = STATE_ON;
1053 viafb_primary_dev = LCD2_Device;
1054 } else if (!strcmp(viafb_active_dev, "CRT")) {
1056 viafb_CRT_ON = STATE_ON;
1057 viafb_SAMM_ON = STATE_OFF;
1058 } else if (!strcmp(viafb_active_dev, "DVI")) {
1060 viafb_DVI_ON = STATE_ON;
1061 viafb_SAMM_ON = STATE_OFF;
1062 } else if (!strcmp(viafb_active_dev, "LCD")) {
1064 viafb_LCD_ON = STATE_ON;
1065 viafb_SAMM_ON = STATE_OFF;
1072 static int __devinit parse_port(char *opt_str, int *output_interface)
1074 if (!strncmp(opt_str, "DVP0", 4))
1075 *output_interface = INTERFACE_DVP0;
1076 else if (!strncmp(opt_str, "DVP1", 4))
1077 *output_interface = INTERFACE_DVP1;
1078 else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1079 *output_interface = INTERFACE_DFP;
1080 else if (!strncmp(opt_str, "DFP_HIGH", 8))
1081 *output_interface = INTERFACE_DFP_HIGH;
1082 else if (!strncmp(opt_str, "DFP_LOW", 7))
1083 *output_interface = INTERFACE_DFP_LOW;
1085 *output_interface = INTERFACE_NONE;
1089 static void __devinit parse_lcd_port(void)
1091 parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1093 /*Initialize to avoid unexpected behavior */
1094 viaparinfo->chip_info->lvds_chip_info2.output_interface =
1097 DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1098 viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1102 static void __devinit parse_dvi_port(void)
1104 parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1107 DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1108 viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1112 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1115 * The proc filesystem read/write function, a simple proc implement to
1116 * get/set the value of DPA DVP0, DVP0DataDriving, DVP0ClockDriving, DVP1,
1117 * DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1118 * CR9B, SR65, CR97, CR99
1120 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1122 u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1124 (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1125 (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1127 (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1128 (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1129 dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1130 seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1134 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1136 return single_open(file, viafb_dvp0_proc_show, NULL);
1139 static ssize_t viafb_dvp0_proc_write(struct file *file,
1140 const char __user *buffer, size_t count, loff_t *pos)
1142 char buf[20], *value, *pbuf;
1144 unsigned long length, i;
1147 length = count > 20 ? 20 : count;
1148 if (copy_from_user(&buf[0], buffer, length))
1150 buf[length - 1] = '\0'; /*Ensure end string */
1152 for (i = 0; i < 3; i++) {
1153 value = strsep(&pbuf, " ");
1154 if (value != NULL) {
1155 strict_strtoul(value, 0, (unsigned long *)®_val);
1156 DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1160 viafb_write_reg_mask(CR96, VIACR,
1164 viafb_write_reg_mask(SR2A, VIASR,
1165 reg_val << 4, BIT5);
1166 viafb_write_reg_mask(SR1B, VIASR,
1167 reg_val << 1, BIT1);
1170 viafb_write_reg_mask(SR2A, VIASR,
1171 reg_val << 3, BIT4);
1172 viafb_write_reg_mask(SR1E, VIASR,
1173 reg_val << 2, BIT2);
1185 static const struct file_operations viafb_dvp0_proc_fops = {
1186 .owner = THIS_MODULE,
1187 .open = viafb_dvp0_proc_open,
1189 .llseek = seq_lseek,
1190 .release = single_release,
1191 .write = viafb_dvp0_proc_write,
1194 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1196 u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1197 dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1198 dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1199 dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1200 seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1204 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1206 return single_open(file, viafb_dvp1_proc_show, NULL);
1209 static ssize_t viafb_dvp1_proc_write(struct file *file,
1210 const char __user *buffer, size_t count, loff_t *pos)
1212 char buf[20], *value, *pbuf;
1214 unsigned long length, i;
1217 length = count > 20 ? 20 : count;
1218 if (copy_from_user(&buf[0], buffer, length))
1220 buf[length - 1] = '\0'; /*Ensure end string */
1222 for (i = 0; i < 3; i++) {
1223 value = strsep(&pbuf, " ");
1224 if (value != NULL) {
1225 strict_strtoul(value, 0, (unsigned long *)®_val);
1228 viafb_write_reg_mask(CR9B, VIACR,
1232 viafb_write_reg_mask(SR65, VIASR,
1233 reg_val << 2, 0x0c);
1236 viafb_write_reg_mask(SR65, VIASR,
1249 static const struct file_operations viafb_dvp1_proc_fops = {
1250 .owner = THIS_MODULE,
1251 .open = viafb_dvp1_proc_open,
1253 .llseek = seq_lseek,
1254 .release = single_release,
1255 .write = viafb_dvp1_proc_write,
1258 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1261 dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1262 seq_printf(m, "%x\n", dfp_high);
1266 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1268 return single_open(file, viafb_dfph_proc_show, NULL);
1271 static ssize_t viafb_dfph_proc_write(struct file *file,
1272 const char __user *buffer, size_t count, loff_t *pos)
1276 unsigned long length;
1279 length = count > 20 ? 20 : count;
1280 if (copy_from_user(&buf[0], buffer, length))
1282 buf[length - 1] = '\0'; /*Ensure end string */
1283 strict_strtoul(&buf[0], 0, (unsigned long *)®_val);
1284 viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1288 static const struct file_operations viafb_dfph_proc_fops = {
1289 .owner = THIS_MODULE,
1290 .open = viafb_dfph_proc_open,
1292 .llseek = seq_lseek,
1293 .release = single_release,
1294 .write = viafb_dfph_proc_write,
1297 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1300 dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1301 seq_printf(m, "%x\n", dfp_low);
1305 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1307 return single_open(file, viafb_dfpl_proc_show, NULL);
1310 static ssize_t viafb_dfpl_proc_write(struct file *file,
1311 const char __user *buffer, size_t count, loff_t *pos)
1315 unsigned long length;
1318 length = count > 20 ? 20 : count;
1319 if (copy_from_user(&buf[0], buffer, length))
1321 buf[length - 1] = '\0'; /*Ensure end string */
1322 strict_strtoul(&buf[0], 0, (unsigned long *)®_val);
1323 viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1327 static const struct file_operations viafb_dfpl_proc_fops = {
1328 .owner = THIS_MODULE,
1329 .open = viafb_dfpl_proc_open,
1331 .llseek = seq_lseek,
1332 .release = single_release,
1333 .write = viafb_dfpl_proc_write,
1336 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1338 u8 vt1636_08 = 0, vt1636_09 = 0;
1339 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1342 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1343 &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1345 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1346 &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1347 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1352 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1355 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1356 &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1358 viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1359 &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1360 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1368 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1370 return single_open(file, viafb_vt1636_proc_show, NULL);
1373 static ssize_t viafb_vt1636_proc_write(struct file *file,
1374 const char __user *buffer, size_t count, loff_t *pos)
1376 char buf[30], *value, *pbuf;
1377 struct IODATA reg_val;
1378 unsigned long length, i;
1381 length = count > 30 ? 30 : count;
1382 if (copy_from_user(&buf[0], buffer, length))
1384 buf[length - 1] = '\0'; /*Ensure end string */
1386 switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1388 for (i = 0; i < 2; i++) {
1389 value = strsep(&pbuf, " ");
1390 if (value != NULL) {
1391 strict_strtoul(value, 0,
1392 (unsigned long *)®_val.Data);
1395 reg_val.Index = 0x08;
1396 reg_val.Mask = 0x0f;
1397 viafb_gpio_i2c_write_mask_lvds
1398 (viaparinfo->lvds_setting_info,
1400 chip_info->lvds_chip_info,
1404 reg_val.Index = 0x09;
1405 reg_val.Mask = 0x1f;
1406 viafb_gpio_i2c_write_mask_lvds
1407 (viaparinfo->lvds_setting_info,
1409 chip_info->lvds_chip_info,
1423 switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1425 for (i = 0; i < 2; i++) {
1426 value = strsep(&pbuf, " ");
1427 if (value != NULL) {
1428 strict_strtoul(value, 0,
1429 (unsigned long *)®_val.Data);
1432 reg_val.Index = 0x08;
1433 reg_val.Mask = 0x0f;
1434 viafb_gpio_i2c_write_mask_lvds
1435 (viaparinfo->lvds_setting_info2,
1437 chip_info->lvds_chip_info2,
1441 reg_val.Index = 0x09;
1442 reg_val.Mask = 0x1f;
1443 viafb_gpio_i2c_write_mask_lvds
1444 (viaparinfo->lvds_setting_info2,
1446 chip_info->lvds_chip_info2,
1463 static const struct file_operations viafb_vt1636_proc_fops = {
1464 .owner = THIS_MODULE,
1465 .open = viafb_vt1636_proc_open,
1467 .llseek = seq_lseek,
1468 .release = single_release,
1469 .write = viafb_vt1636_proc_write,
1472 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1474 static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1476 via_odev_to_seq(m, supported_odev_map[
1477 viaparinfo->shared->chip_info.gfx_chip_name]);
1481 static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file)
1483 return single_open(file, viafb_sup_odev_proc_show, NULL);
1486 static const struct file_operations viafb_sup_odev_proc_fops = {
1487 .owner = THIS_MODULE,
1488 .open = viafb_sup_odev_proc_open,
1490 .llseek = seq_lseek,
1491 .release = single_release,
1494 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1496 char buf[64], *ptr = buf;
1500 if (count < 1 || count > 63)
1502 if (copy_from_user(&buf[0], buffer, count))
1505 add = buf[0] == '+';
1506 sub = buf[0] == '-';
1509 devices = via_parse_odev(ptr, &ptr);
1523 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1525 via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1529 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1531 return single_open(file, viafb_iga1_odev_proc_show, NULL);
1534 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1535 const char __user *buffer, size_t count, loff_t *pos)
1537 u32 dev_on, dev_off, dev_old, dev_new;
1540 dev_old = dev_new = viaparinfo->shared->iga1_devices;
1541 res = odev_update(buffer, count, &dev_new);
1544 dev_off = dev_old & ~dev_new;
1545 dev_on = dev_new & ~dev_old;
1546 viaparinfo->shared->iga1_devices = dev_new;
1547 viaparinfo->shared->iga2_devices &= ~dev_new;
1548 via_set_state(dev_off, VIA_STATE_OFF);
1549 via_set_source(dev_new, IGA1);
1550 via_set_state(dev_on, VIA_STATE_ON);
1554 static const struct file_operations viafb_iga1_odev_proc_fops = {
1555 .owner = THIS_MODULE,
1556 .open = viafb_iga1_odev_proc_open,
1558 .llseek = seq_lseek,
1559 .release = single_release,
1560 .write = viafb_iga1_odev_proc_write,
1563 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1565 via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1569 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1571 return single_open(file, viafb_iga2_odev_proc_show, NULL);
1574 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1575 const char __user *buffer, size_t count, loff_t *pos)
1577 u32 dev_on, dev_off, dev_old, dev_new;
1580 dev_old = dev_new = viaparinfo->shared->iga2_devices;
1581 res = odev_update(buffer, count, &dev_new);
1584 dev_off = dev_old & ~dev_new;
1585 dev_on = dev_new & ~dev_old;
1586 viaparinfo->shared->iga2_devices = dev_new;
1587 viaparinfo->shared->iga1_devices &= ~dev_new;
1588 via_set_state(dev_off, VIA_STATE_OFF);
1589 via_set_source(dev_new, IGA2);
1590 via_set_state(dev_on, VIA_STATE_ON);
1594 static const struct file_operations viafb_iga2_odev_proc_fops = {
1595 .owner = THIS_MODULE,
1596 .open = viafb_iga2_odev_proc_open,
1598 .llseek = seq_lseek,
1599 .release = single_release,
1600 .write = viafb_iga2_odev_proc_write,
1603 #define IS_VT1636(lvds_chip) ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1604 static void viafb_init_proc(struct viafb_shared *shared)
1606 struct proc_dir_entry *iga1_entry, *iga2_entry,
1607 *viafb_entry = proc_mkdir("viafb", NULL);
1609 shared->proc_entry = viafb_entry;
1611 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1612 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1613 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1614 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1615 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1616 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1617 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1618 proc_create("vt1636", 0, viafb_entry,
1619 &viafb_vt1636_proc_fops);
1620 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1622 proc_create("supported_output_devices", 0, viafb_entry,
1623 &viafb_sup_odev_proc_fops);
1624 iga1_entry = proc_mkdir("iga1", viafb_entry);
1625 shared->iga1_proc_entry = iga1_entry;
1626 proc_create("output_devices", 0, iga1_entry,
1627 &viafb_iga1_odev_proc_fops);
1628 iga2_entry = proc_mkdir("iga2", viafb_entry);
1629 shared->iga2_proc_entry = iga2_entry;
1630 proc_create("output_devices", 0, iga2_entry,
1631 &viafb_iga2_odev_proc_fops);
1634 static void viafb_remove_proc(struct viafb_shared *shared)
1636 struct proc_dir_entry *viafb_entry = shared->proc_entry,
1637 *iga1_entry = shared->iga1_proc_entry,
1638 *iga2_entry = shared->iga2_proc_entry;
1643 remove_proc_entry("output_devices", iga2_entry);
1644 remove_proc_entry("iga2", viafb_entry);
1645 remove_proc_entry("output_devices", iga1_entry);
1646 remove_proc_entry("iga1", viafb_entry);
1647 remove_proc_entry("supported_output_devices", viafb_entry);
1649 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1650 remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1651 remove_proc_entry("dvp1", viafb_entry);
1652 remove_proc_entry("dfph", viafb_entry);
1653 remove_proc_entry("dfpl", viafb_entry);
1654 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1655 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1656 remove_proc_entry("vt1636", viafb_entry);
1657 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1659 remove_proc_entry("viafb", NULL);
1663 static int parse_mode(const char *str, u32 *xres, u32 *yres)
1673 *xres = simple_strtoul(str, &ptr, 10);
1677 *yres = simple_strtoul(&ptr[1], &ptr, 10);
1686 static int viafb_suspend(void *unused)
1689 fb_set_suspend(viafbinfo, 1);
1690 viafb_sync(viafbinfo);
1696 static int viafb_resume(void *unused)
1699 if (viaparinfo->shared->vdev->engine_mmio)
1700 viafb_reset_engine(viaparinfo);
1701 viafb_set_par(viafbinfo);
1703 viafb_set_par(viafbinfo1);
1704 fb_set_suspend(viafbinfo, 0);
1710 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1711 .suspend = viafb_suspend,
1712 .resume = viafb_resume
1718 int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
1720 u32 default_xres, default_yres;
1721 struct VideoModeTable *vmode_entry;
1722 struct fb_var_screeninfo default_var;
1724 u32 viafb_par_length;
1726 DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1727 memset(&default_var, 0, sizeof(default_var));
1728 viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1730 /* Allocate fb_info and ***_par here, also including some other needed
1733 viafbinfo = framebuffer_alloc(viafb_par_length +
1734 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1737 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
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;
1756 viafb_init_chip_info(vdev->chip_type);
1758 * The framebuffer will have been successfully mapped by
1759 * the core (or we'd not be here), but we still need to
1760 * set up our own accounting.
1762 viaparinfo->fbmem = vdev->fbmem_start;
1763 viaparinfo->memsize = vdev->fbmem_len;
1764 viaparinfo->fbmem_free = viaparinfo->memsize;
1765 viaparinfo->fbmem_used = 0;
1766 viafbinfo->screen_base = vdev->fbmem;
1768 viafbinfo->fix.mmio_start = vdev->engine_start;
1769 viafbinfo->fix.mmio_len = vdev->engine_len;
1770 viafbinfo->node = 0;
1771 viafbinfo->fbops = &viafb_ops;
1772 viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1774 viafbinfo->pseudo_palette = pseudo_pal;
1775 if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1776 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1777 FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT;
1778 default_var.accel_flags = FB_ACCELF_TEXT;
1780 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1781 default_var.accel_flags = 0;
1784 if (viafb_second_size && (viafb_second_size < 8)) {
1785 viafb_second_offset = viaparinfo->fbmem_free -
1786 viafb_second_size * 1024 * 1024;
1788 viafb_second_size = 8;
1789 viafb_second_offset = viaparinfo->fbmem_free -
1790 viafb_second_size * 1024 * 1024;
1793 parse_mode(viafb_mode, &default_xres, &default_yres);
1794 vmode_entry = viafb_get_mode(default_xres, default_yres);
1795 if (viafb_SAMM_ON == 1)
1796 parse_mode(viafb_mode1, &viafb_second_xres,
1797 &viafb_second_yres);
1799 default_var.xres = default_xres;
1800 default_var.yres = default_yres;
1801 default_var.xres_virtual = default_xres;
1802 default_var.yres_virtual = default_yres;
1803 default_var.bits_per_pixel = viafb_bpp;
1804 viafb_fill_var_timing_info(&default_var, viafb_get_refresh(
1805 default_var.xres, default_var.yres, viafb_refresh),
1806 viafb_get_mode(default_var.xres, default_var.yres));
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 "allocate the second framebuffer struct error\n");
1817 goto out_fb_release;
1819 viaparinfo1 = viafbinfo1->par;
1820 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1821 viaparinfo1->vram_addr = viafb_second_offset;
1822 viaparinfo1->memsize = viaparinfo->memsize -
1823 viafb_second_offset;
1824 viaparinfo->memsize = viafb_second_offset;
1825 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1827 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1828 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1829 viaparinfo1->fbmem_used;
1830 viaparinfo->fbmem_free = viaparinfo->memsize;
1831 viaparinfo->fbmem_used = 0;
1833 viaparinfo->iga_path = IGA1;
1834 viaparinfo1->iga_path = IGA2;
1835 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1836 viafbinfo1->par = viaparinfo1;
1837 viafbinfo1->screen_base = viafbinfo->screen_base +
1838 viafb_second_offset;
1840 default_var.xres = viafb_second_xres;
1841 default_var.yres = viafb_second_yres;
1842 default_var.xres_virtual = viafb_second_xres;
1843 default_var.yres_virtual = viafb_second_yres;
1844 default_var.bits_per_pixel = viafb_bpp1;
1845 viafb_fill_var_timing_info(&default_var, viafb_get_refresh(
1846 default_var.xres, default_var.yres, viafb_refresh1),
1847 viafb_get_mode(default_var.xres, default_var.yres));
1849 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1850 viafb_check_var(&default_var, viafbinfo1);
1851 viafbinfo1->var = default_var;
1852 viafb_update_fix(viafbinfo1);
1853 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1857 viafb_check_var(&viafbinfo->var, viafbinfo);
1858 viafb_update_fix(viafbinfo);
1859 viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1861 default_var.activate = FB_ACTIVATE_NOW;
1862 rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1864 goto out_fb1_release;
1866 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1867 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1868 rc = register_framebuffer(viafbinfo1);
1870 goto out_dealloc_cmap;
1872 rc = register_framebuffer(viafbinfo);
1874 goto out_fb1_unreg_lcd_cle266;
1876 if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1877 || (viaparinfo->chip_info->gfx_chip_name !=
1878 UNICHROME_CLE266))) {
1879 rc = register_framebuffer(viafbinfo1);
1883 DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1884 viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1885 default_var.yres, default_var.bits_per_pixel);
1887 viafb_init_proc(viaparinfo->shared);
1888 viafb_init_dac(IGA2);
1891 viafb_pm_register(&viafb_fb_pm_hooks);
1896 unregister_framebuffer(viafbinfo);
1897 out_fb1_unreg_lcd_cle266:
1898 if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1899 && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1900 unregister_framebuffer(viafbinfo1);
1902 fb_dealloc_cmap(&viafbinfo->cmap);
1905 framebuffer_release(viafbinfo1);
1907 framebuffer_release(viafbinfo);
1911 void __devexit via_fb_pci_remove(struct pci_dev *pdev)
1913 DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1914 fb_dealloc_cmap(&viafbinfo->cmap);
1915 unregister_framebuffer(viafbinfo);
1917 unregister_framebuffer(viafbinfo1);
1918 viafb_remove_proc(viaparinfo->shared);
1919 framebuffer_release(viafbinfo);
1921 framebuffer_release(viafbinfo1);
1925 static int __init viafb_setup(char *options)
1928 DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1930 if (!options || !*options)
1933 while ((this_opt = strsep(&options, ",")) != NULL) {
1937 if (!strncmp(this_opt, "viafb_mode1=", 12))
1938 viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1939 else if (!strncmp(this_opt, "viafb_mode=", 11))
1940 viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1941 else if (!strncmp(this_opt, "viafb_bpp1=", 11))
1942 strict_strtoul(this_opt + 11, 0,
1943 (unsigned long *)&viafb_bpp1);
1944 else if (!strncmp(this_opt, "viafb_bpp=", 10))
1945 strict_strtoul(this_opt + 10, 0,
1946 (unsigned long *)&viafb_bpp);
1947 else if (!strncmp(this_opt, "viafb_refresh1=", 15))
1948 strict_strtoul(this_opt + 15, 0,
1949 (unsigned long *)&viafb_refresh1);
1950 else if (!strncmp(this_opt, "viafb_refresh=", 14))
1951 strict_strtoul(this_opt + 14, 0,
1952 (unsigned long *)&viafb_refresh);
1953 else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21))
1954 strict_strtoul(this_opt + 21, 0,
1955 (unsigned long *)&viafb_lcd_dsp_method);
1956 else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19))
1957 strict_strtoul(this_opt + 19, 0,
1958 (unsigned long *)&viafb_lcd_panel_id);
1959 else if (!strncmp(this_opt, "viafb_accel=", 12))
1960 strict_strtoul(this_opt + 12, 0,
1961 (unsigned long *)&viafb_accel);
1962 else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14))
1963 strict_strtoul(this_opt + 14, 0,
1964 (unsigned long *)&viafb_SAMM_ON);
1965 else if (!strncmp(this_opt, "viafb_active_dev=", 17))
1966 viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1967 else if (!strncmp(this_opt,
1968 "viafb_display_hardware_layout=", 30))
1969 strict_strtoul(this_opt + 30, 0,
1970 (unsigned long *)&viafb_display_hardware_layout);
1971 else if (!strncmp(this_opt, "viafb_second_size=", 18))
1972 strict_strtoul(this_opt + 18, 0,
1973 (unsigned long *)&viafb_second_size);
1974 else if (!strncmp(this_opt,
1975 "viafb_platform_epia_dvi=", 24))
1976 strict_strtoul(this_opt + 24, 0,
1977 (unsigned long *)&viafb_platform_epia_dvi);
1978 else if (!strncmp(this_opt,
1979 "viafb_device_lcd_dualedge=", 26))
1980 strict_strtoul(this_opt + 26, 0,
1981 (unsigned long *)&viafb_device_lcd_dualedge);
1982 else if (!strncmp(this_opt, "viafb_bus_width=", 16))
1983 strict_strtoul(this_opt + 16, 0,
1984 (unsigned long *)&viafb_bus_width);
1985 else if (!strncmp(this_opt, "viafb_lcd_mode=", 15))
1986 strict_strtoul(this_opt + 15, 0,
1987 (unsigned long *)&viafb_lcd_mode);
1988 else if (!strncmp(this_opt, "viafb_lcd_port=", 15))
1989 viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
1990 else if (!strncmp(this_opt, "viafb_dvi_port=", 15))
1991 viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
1998 * These are called out of via-core for now.
2000 int __init viafb_init(void)
2002 u32 dummy_x, dummy_y;
2004 char *option = NULL;
2005 if (fb_get_options("viafb", &option))
2007 viafb_setup(option);
2009 if (parse_mode(viafb_mode, &dummy_x, &dummy_y)
2010 || !viafb_get_mode(dummy_x, dummy_y)
2011 || parse_mode(viafb_mode1, &dummy_x, &dummy_y)
2012 || !viafb_get_mode(dummy_x, dummy_y)
2013 || viafb_bpp < 0 || viafb_bpp > 32
2014 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2015 || parse_active_dev())
2019 "VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
2020 VERSION_MAJOR, VERSION_MINOR);
2024 void __exit viafb_exit(void)
2026 DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2029 static struct fb_ops viafb_ops = {
2030 .owner = THIS_MODULE,
2031 .fb_open = viafb_open,
2032 .fb_release = viafb_release,
2033 .fb_check_var = viafb_check_var,
2034 .fb_set_par = viafb_set_par,
2035 .fb_setcolreg = viafb_setcolreg,
2036 .fb_pan_display = viafb_pan_display,
2037 .fb_blank = viafb_blank,
2038 .fb_fillrect = viafb_fillrect,
2039 .fb_copyarea = viafb_copyarea,
2040 .fb_imageblit = viafb_imageblit,
2041 .fb_cursor = viafb_cursor,
2042 .fb_ioctl = viafb_ioctl,
2043 .fb_sync = viafb_sync,
2048 module_param(viafb_mode, charp, S_IRUSR);
2049 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2051 module_param(viafb_mode1, charp, S_IRUSR);
2052 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2054 module_param(viafb_bpp, int, S_IRUSR);
2055 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2057 module_param(viafb_bpp1, int, S_IRUSR);
2058 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2060 module_param(viafb_refresh, int, S_IRUSR);
2061 MODULE_PARM_DESC(viafb_refresh,
2062 "Set CRT viafb_refresh rate (default = 60)");
2064 module_param(viafb_refresh1, int, S_IRUSR);
2065 MODULE_PARM_DESC(viafb_refresh1,
2066 "Set CRT refresh rate (default = 60)");
2068 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2069 MODULE_PARM_DESC(viafb_lcd_panel_id,
2070 "Set Flat Panel type(Default=1024x768)");
2072 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2073 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2074 "Set Flat Panel display scaling method.(Default=Expandsion)");
2076 module_param(viafb_SAMM_ON, int, S_IRUSR);
2077 MODULE_PARM_DESC(viafb_SAMM_ON,
2078 "Turn on/off flag of SAMM(Default=OFF)");
2080 module_param(viafb_accel, int, S_IRUSR);
2081 MODULE_PARM_DESC(viafb_accel,
2082 "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2084 module_param(viafb_active_dev, charp, S_IRUSR);
2085 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2087 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2088 MODULE_PARM_DESC(viafb_display_hardware_layout,
2089 "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2091 module_param(viafb_second_size, int, S_IRUSR);
2092 MODULE_PARM_DESC(viafb_second_size,
2093 "Set secondary device memory size");
2095 module_param(viafb_dual_fb, int, S_IRUSR);
2096 MODULE_PARM_DESC(viafb_dual_fb,
2097 "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2099 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2100 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2101 "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2103 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2104 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2105 "Turn on/off flag of dual edge panel.(Default = OFF)");
2107 module_param(viafb_bus_width, int, S_IRUSR);
2108 MODULE_PARM_DESC(viafb_bus_width,
2109 "Set bus width of panel.(Default = 12)");
2111 module_param(viafb_lcd_mode, int, S_IRUSR);
2112 MODULE_PARM_DESC(viafb_lcd_mode,
2113 "Set Flat Panel mode(Default=OPENLDI)");
2115 module_param(viafb_lcd_port, charp, S_IRUSR);
2116 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2118 module_param(viafb_dvi_port, charp, S_IRUSR);
2119 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2121 MODULE_LICENSE("GPL");