1/*
2 * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
3 * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
4
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public
7 * License as published by the Free Software Foundation;
8 * either version 2, or (at your option) any later version.
9
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
12 * the implied warranty of MERCHANTABILITY or FITNESS FOR
13 * A PARTICULAR PURPOSE.See the GNU General Public License
14 * for more details.
15
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc.,
19 * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
20 */
21
22#include <linux/module.h>
23#include <linux/seq_file.h>
24#include <linux/slab.h>
25#include <linux/stat.h>
26#include <linux/via-core.h>
27#include <linux/via_i2c.h>
28#include <asm/olpc.h>
29
30#define _MASTER_FILE
31#include "global.h"
32
33static char *viafb_name = "Via";
34static u32 pseudo_pal[17];
35
36/* video mode */
37static char *viafb_mode;
38static char *viafb_mode1;
39static int viafb_bpp = 32;
40static int viafb_bpp1 = 32;
41
42static unsigned int viafb_second_offset;
43static int viafb_second_size;
44
45static int viafb_accel = 1;
46
47/* Added for specifying active devices.*/
48static char *viafb_active_dev;
49
50/*Added for specify lcd output port*/
51static char *viafb_lcd_port = "";
52static char *viafb_dvi_port = "";
53
54static void retrieve_device_setting(struct viafb_ioctl_setting
55	*setting_info);
56static int viafb_pan_display(struct fb_var_screeninfo *var,
57	struct fb_info *info);
58
59static struct fb_ops viafb_ops;
60
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
67 */
68static 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
71				| VIA_LVDS2,
72	[UNICHROME_K800]	= VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
73				| VIA_LVDS2,
74	[UNICHROME_PM800]	= VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
75				| VIA_LVDS2,
76	[UNICHROME_CN700]	= VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
77				| VIA_LVDS2,
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,
86};
87
88static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
89{
90	var->grayscale = 0;
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;
97	var->nonstd = 0;
98	switch (depth) {
99	case 8:
100		var->bits_per_pixel = 8;
101		var->red.offset = 0;
102		var->green.offset = 0;
103		var->blue.offset = 0;
104		var->red.length = 8;
105		var->green.length = 8;
106		var->blue.length = 8;
107		break;
108	case 15:
109		var->bits_per_pixel = 16;
110		var->red.offset = 10;
111		var->green.offset = 5;
112		var->blue.offset = 0;
113		var->red.length = 5;
114		var->green.length = 5;
115		var->blue.length = 5;
116		break;
117	case 16:
118		var->bits_per_pixel = 16;
119		var->red.offset = 11;
120		var->green.offset = 5;
121		var->blue.offset = 0;
122		var->red.length = 5;
123		var->green.length = 6;
124		var->blue.length = 5;
125		break;
126	case 24:
127		var->bits_per_pixel = 32;
128		var->red.offset = 16;
129		var->green.offset = 8;
130		var->blue.offset = 0;
131		var->red.length = 8;
132		var->green.length = 8;
133		var->blue.length = 8;
134		break;
135	case 30:
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;
143		break;
144	}
145}
146
147static void viafb_update_fix(struct fb_info *info)
148{
149	u32 bpp = info->var.bits_per_pixel;
150
151	info->fix.visual =
152		bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
153	info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
154		VIA_PITCH_SIZE);
155}
156
157static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
158	struct viafb_par *viaparinfo)
159{
160	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
161	strcpy(fix->id, viafb_name);
162
163	fix->smem_start = viaparinfo->fbmem;
164	fix->smem_len = viaparinfo->fbmem_free;
165
166	fix->type = FB_TYPE_PACKED_PIXELS;
167	fix->type_aux = 0;
168	fix->visual = FB_VISUAL_TRUECOLOR;
169
170	fix->xpanstep = fix->ywrapstep = 0;
171	fix->ypanstep = 1;
172
173	/* Just tell the accel name */
174	viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
175}
176static int viafb_open(struct fb_info *info, int user)
177{
178	DEBUG_MSG(KERN_INFO "viafb_open!\n");
179	return 0;
180}
181
182static int viafb_release(struct fb_info *info, int user)
183{
184	DEBUG_MSG(KERN_INFO "viafb_release!\n");
185	return 0;
186}
187
188static inline int get_var_refresh(struct fb_var_screeninfo *var)
189{
190	u32 htotal, vtotal;
191
192	htotal = var->left_margin + var->xres + var->right_margin
193		+ var->hsync_len;
194	vtotal = var->upper_margin + var->yres + var->lower_margin
195		+ var->vsync_len;
196	return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
197}
198
199static int viafb_check_var(struct fb_var_screeninfo *var,
200	struct fb_info *info)
201{
202	int depth, refresh;
203	struct viafb_par *ppar = info->par;
204	u32 line;
205
206	DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
207	/* Sanity check */
208	/* HW neither support interlacte nor double-scaned mode */
209	if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
210		return -EINVAL;
211
212	/* the refresh rate is not important here, as we only want to know
213	 * whether the resolution exists
214	 */
215	if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
216		DEBUG_MSG(KERN_INFO
217			  "viafb: Mode %dx%dx%d not supported!!\n",
218			  var->xres, var->yres, var->bits_per_pixel);
219		return -EINVAL;
220	}
221
222	depth = fb_get_color_depth(var, &info->fix);
223	if (!depth)
224		depth = var->bits_per_pixel;
225
226	if (depth < 0 || depth > 32)
227		return -EINVAL;
228	else if (!depth)
229		depth = 24;
230	else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
231		depth = 15;
232	else if (depth == 30)
233		depth = 30;
234	else if (depth <= 8)
235		depth = 8;
236	else if (depth <= 16)
237		depth = 16;
238	else
239		depth = 24;
240
241	viafb_fill_var_color_info(var, depth);
242	if (var->xres_virtual < var->xres)
243		var->xres_virtual = var->xres;
244
245	line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
246		VIA_PITCH_SIZE);
247	if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
248		return -EINVAL;
249
250	/* Based on var passed in to calculate the refresh,
251	 * because our driver use some modes special.
252	 */
253	refresh = viafb_get_refresh(var->xres, var->yres,
254		get_var_refresh(var));
255
256	/* Adjust var according to our driver's own table */
257	viafb_fill_var_timing_info(var,
258		viafb_get_best_mode(var->xres, var->yres, refresh));
259	if (var->accel_flags & FB_ACCELF_TEXT &&
260		!ppar->shared->vdev->engine_mmio)
261		var->accel_flags = 0;
262
263	return 0;
264}
265
266static int viafb_set_par(struct fb_info *info)
267{
268	struct viafb_par *viapar = info->par;
269	int refresh;
270	DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
271
272	viafb_update_fix(info);
273	viapar->depth = fb_get_color_depth(&info->var, &info->fix);
274	viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
275		viafbinfo->var.bits_per_pixel, 0);
276
277	if (viafb_dual_fb) {
278		viafb_update_device_setting(viafbinfo1->var.xres,
279			viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
280			1);
281	} else if (viafb_SAMM_ON == 1) {
282		DEBUG_MSG(KERN_INFO
283		"viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
284			  viafb_second_xres, viafb_second_yres, viafb_bpp1);
285
286		viafb_update_device_setting(viafb_second_xres,
287			viafb_second_yres, viafb_bpp1, 1);
288	}
289
290	refresh = get_var_refresh(&info->var);
291	if (viafb_dual_fb && viapar->iga_path == IGA2) {
292		viafb_bpp1 = info->var.bits_per_pixel;
293		viafb_refresh1 = refresh;
294	} else {
295		viafb_bpp = info->var.bits_per_pixel;
296		viafb_refresh = refresh;
297	}
298
299	if (info->var.accel_flags & FB_ACCELF_TEXT)
300		info->flags &= ~FBINFO_HWACCEL_DISABLED;
301	else
302		info->flags |= FBINFO_HWACCEL_DISABLED;
303	viafb_setmode();
304	viafb_pan_display(&info->var, info);
305
306	return 0;
307}
308
309/* Set one color register */
310static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
311unsigned blue, unsigned transp, struct fb_info *info)
312{
313	struct viafb_par *viapar = info->par;
314	u32 r, g, b;
315
316	if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
317		if (regno > 255)
318			return -EINVAL;
319
320		if (!viafb_dual_fb || viapar->iga_path == IGA1)
321			viafb_set_primary_color_register(regno, red >> 8,
322				green >> 8, blue >> 8);
323
324		if (!viafb_dual_fb || viapar->iga_path == IGA2)
325			viafb_set_secondary_color_register(regno, red >> 8,
326				green >> 8, blue >> 8);
327	} else {
328		if (regno > 15)
329			return -EINVAL;
330
331		r = (red >> (16 - info->var.red.length))
332			<< info->var.red.offset;
333		b = (blue >> (16 - info->var.blue.length))
334			<< info->var.blue.offset;
335		g = (green >> (16 - info->var.green.length))
336			<< info->var.green.offset;
337		((u32 *) info->pseudo_palette)[regno] = r | g | b;
338	}
339
340	return 0;
341}
342
343static int viafb_pan_display(struct fb_var_screeninfo *var,
344	struct fb_info *info)
345{
346	struct viafb_par *viapar = info->par;
347	u32 vram_addr = viapar->vram_addr
348		+ var->yoffset * info->fix.line_length
349		+ var->xoffset * info->var.bits_per_pixel / 8;
350
351	DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
352	if (!viafb_dual_fb) {
353		via_set_primary_address(vram_addr);
354		via_set_secondary_address(vram_addr);
355	} else if (viapar->iga_path == IGA1)
356		via_set_primary_address(vram_addr);
357	else
358		via_set_secondary_address(vram_addr);
359
360	return 0;
361}
362
363static int viafb_blank(int blank_mode, struct fb_info *info)
364{
365	DEBUG_MSG(KERN_INFO "viafb_blank!\n");
366	/* clear DPMS setting */
367
368	switch (blank_mode) {
369	case FB_BLANK_UNBLANK:
370		/* Screen: On, HSync: On, VSync: On */
371		/* control CRT monitor power management */
372		via_set_state(VIA_CRT, VIA_STATE_ON);
373		break;
374	case FB_BLANK_HSYNC_SUSPEND:
375		/* Screen: Off, HSync: Off, VSync: On */
376		/* control CRT monitor power management */
377		via_set_state(VIA_CRT, VIA_STATE_STANDBY);
378		break;
379	case FB_BLANK_VSYNC_SUSPEND:
380		/* Screen: Off, HSync: On, VSync: Off */
381		/* control CRT monitor power management */
382		via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
383		break;
384	case FB_BLANK_POWERDOWN:
385		/* Screen: Off, HSync: Off, VSync: Off */
386		/* control CRT monitor power management */
387		via_set_state(VIA_CRT, VIA_STATE_OFF);
388		break;
389	}
390
391	return 0;
392}
393
394static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
395{
396	union {
397		struct viafb_ioctl_mode viamode;
398		struct viafb_ioctl_samm viasamm;
399		struct viafb_driver_version driver_version;
400		struct fb_var_screeninfo sec_var;
401		struct _panel_size_pos_info panel_pos_size_para;
402		struct viafb_ioctl_setting viafb_setting;
403		struct device_t active_dev;
404	} u;
405	u32 state_info = 0;
406	u32 *viafb_gamma_table;
407	char driver_name[] = "viafb";
408
409	u32 __user *argp = (u32 __user *) arg;
410	u32 gpu32;
411
412	DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
413	printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
414	memset(&u, 0, sizeof(u));
415
416	switch (cmd) {
417	case VIAFB_GET_CHIP_INFO:
418		if (copy_to_user(argp, viaparinfo->chip_info,
419				sizeof(struct chip_information)))
420			return -EFAULT;
421		break;
422	case VIAFB_GET_INFO_SIZE:
423		return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
424	case VIAFB_GET_INFO:
425		return viafb_ioctl_get_viafb_info(arg);
426	case VIAFB_HOTPLUG:
427		return put_user(viafb_ioctl_hotplug(info->var.xres,
428					      info->var.yres,
429					      info->var.bits_per_pixel), argp);
430	case VIAFB_SET_HOTPLUG_FLAG:
431		if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
432			return -EFAULT;
433		viafb_hotplug = (gpu32) ? 1 : 0;
434		break;
435	case VIAFB_GET_RESOLUTION:
436		u.viamode.xres = (u32) viafb_hotplug_Xres;
437		u.viamode.yres = (u32) viafb_hotplug_Yres;
438		u.viamode.refresh = (u32) viafb_hotplug_refresh;
439		u.viamode.bpp = (u32) viafb_hotplug_bpp;
440		if (viafb_SAMM_ON == 1) {
441			u.viamode.xres_sec = viafb_second_xres;
442			u.viamode.yres_sec = viafb_second_yres;
443			u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
444			u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
445			u.viamode.refresh_sec = viafb_refresh1;
446			u.viamode.bpp_sec = viafb_bpp1;
447		} else {
448			u.viamode.xres_sec = 0;
449			u.viamode.yres_sec = 0;
450			u.viamode.virtual_xres_sec = 0;
451			u.viamode.virtual_yres_sec = 0;
452			u.viamode.refresh_sec = 0;
453			u.viamode.bpp_sec = 0;
454		}
455		if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
456			return -EFAULT;
457		break;
458	case VIAFB_GET_SAMM_INFO:
459		u.viasamm.samm_status = viafb_SAMM_ON;
460
461		if (viafb_SAMM_ON == 1) {
462			if (viafb_dual_fb) {
463				u.viasamm.size_prim = viaparinfo->fbmem_free;
464				u.viasamm.size_sec = viaparinfo1->fbmem_free;
465			} else {
466				if (viafb_second_size) {
467					u.viasamm.size_prim =
468					    viaparinfo->fbmem_free -
469					    viafb_second_size * 1024 * 1024;
470					u.viasamm.size_sec =
471					    viafb_second_size * 1024 * 1024;
472				} else {
473					u.viasamm.size_prim =
474					    viaparinfo->fbmem_free >> 1;
475					u.viasamm.size_sec =
476					    (viaparinfo->fbmem_free >> 1);
477				}
478			}
479			u.viasamm.mem_base = viaparinfo->fbmem;
480			u.viasamm.offset_sec = viafb_second_offset;
481		} else {
482			u.viasamm.size_prim =
483			    viaparinfo->memsize - viaparinfo->fbmem_used;
484			u.viasamm.size_sec = 0;
485			u.viasamm.mem_base = viaparinfo->fbmem;
486			u.viasamm.offset_sec = 0;
487		}
488
489		if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
490			return -EFAULT;
491
492		break;
493	case VIAFB_TURN_ON_OUTPUT_DEVICE:
494		if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
495			return -EFAULT;
496		if (gpu32 & CRT_Device)
497			via_set_state(VIA_CRT, VIA_STATE_ON);
498		if (gpu32 & DVI_Device)
499			viafb_dvi_enable();
500		if (gpu32 & LCD_Device)
501			viafb_lcd_enable();
502		break;
503	case VIAFB_TURN_OFF_OUTPUT_DEVICE:
504		if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
505			return -EFAULT;
506		if (gpu32 & CRT_Device)
507			via_set_state(VIA_CRT, VIA_STATE_OFF);
508		if (gpu32 & DVI_Device)
509			viafb_dvi_disable();
510		if (gpu32 & LCD_Device)
511			viafb_lcd_disable();
512		break;
513	case VIAFB_GET_DEVICE:
514		u.active_dev.crt = viafb_CRT_ON;
515		u.active_dev.dvi = viafb_DVI_ON;
516		u.active_dev.lcd = viafb_LCD_ON;
517		u.active_dev.samm = viafb_SAMM_ON;
518		u.active_dev.primary_dev = viafb_primary_dev;
519
520		u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
521		u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
522		u.active_dev.lcd_mode = viafb_lcd_mode;
523
524		u.active_dev.xres = viafb_hotplug_Xres;
525		u.active_dev.yres = viafb_hotplug_Yres;
526
527		u.active_dev.xres1 = viafb_second_xres;
528		u.active_dev.yres1 = viafb_second_yres;
529
530		u.active_dev.bpp = viafb_bpp;
531		u.active_dev.bpp1 = viafb_bpp1;
532		u.active_dev.refresh = viafb_refresh;
533		u.active_dev.refresh1 = viafb_refresh1;
534
535		u.active_dev.epia_dvi = viafb_platform_epia_dvi;
536		u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
537		u.active_dev.bus_width = viafb_bus_width;
538
539		if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
540			return -EFAULT;
541		break;
542
543	case VIAFB_GET_DRIVER_VERSION:
544		u.driver_version.iMajorNum = VERSION_MAJOR;
545		u.driver_version.iKernelNum = VERSION_KERNEL;
546		u.driver_version.iOSNum = VERSION_OS;
547		u.driver_version.iMinorNum = VERSION_MINOR;
548
549		if (copy_to_user(argp, &u.driver_version,
550			sizeof(u.driver_version)))
551			return -EFAULT;
552
553		break;
554
555	case VIAFB_GET_DEVICE_INFO:
556
557		retrieve_device_setting(&u.viafb_setting);
558
559		if (copy_to_user(argp, &u.viafb_setting,
560				 sizeof(u.viafb_setting)))
561			return -EFAULT;
562
563		break;
564
565	case VIAFB_GET_DEVICE_SUPPORT:
566		viafb_get_device_support_state(&state_info);
567		if (put_user(state_info, argp))
568			return -EFAULT;
569		break;
570
571	case VIAFB_GET_DEVICE_CONNECT:
572		viafb_get_device_connect_state(&state_info);
573		if (put_user(state_info, argp))
574			return -EFAULT;
575		break;
576
577	case VIAFB_GET_PANEL_SUPPORT_EXPAND:
578		state_info =
579		    viafb_lcd_get_support_expand_state(info->var.xres,
580						 info->var.yres);
581		if (put_user(state_info, argp))
582			return -EFAULT;
583		break;
584
585	case VIAFB_GET_DRIVER_NAME:
586		if (copy_to_user(argp, driver_name, sizeof(driver_name)))
587			return -EFAULT;
588		break;
589
590	case VIAFB_SET_GAMMA_LUT:
591		viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
592		if (IS_ERR(viafb_gamma_table))
593			return PTR_ERR(viafb_gamma_table);
594		viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
595		kfree(viafb_gamma_table);
596		break;
597
598	case VIAFB_GET_GAMMA_LUT:
599		viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
600		if (!viafb_gamma_table)
601			return -ENOMEM;
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);
606			return -EFAULT;
607		}
608		kfree(viafb_gamma_table);
609		break;
610
611	case VIAFB_GET_GAMMA_SUPPORT_STATE:
612		viafb_get_gamma_support_state(viafb_bpp, &state_info);
613		if (put_user(state_info, argp))
614			return -EFAULT;
615		break;
616	case VIAFB_SYNC_SURFACE:
617		DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
618		break;
619	case VIAFB_GET_DRIVER_CAPS:
620		break;
621
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)))
625			return -EFAULT;
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)))
629			return -EFAULT;
630		break;
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)))
634			return -EFAULT;
635		u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
636		if (copy_to_user(argp, &u.panel_pos_size_para,
637				 sizeof(u.panel_pos_size_para)))
638			return -EFAULT;
639		break;
640
641	case VIAFB_GET_PANEL_POSITION:
642		if (copy_from_user(&u.panel_pos_size_para, argp,
643				   sizeof(u.panel_pos_size_para)))
644			return -EFAULT;
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)))
648			return -EFAULT;
649		break;
650	case VIAFB_GET_PANEL_SIZE:
651		if (copy_from_user(&u.panel_pos_size_para, argp,
652				   sizeof(u.panel_pos_size_para)))
653			return -EFAULT;
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)))
657			return -EFAULT;
658		break;
659
660	case VIAFB_SET_PANEL_POSITION:
661		if (copy_from_user(&u.panel_pos_size_para, argp,
662				   sizeof(u.panel_pos_size_para)))
663			return -EFAULT;
664		break;
665	case VIAFB_SET_PANEL_SIZE:
666		if (copy_from_user(&u.panel_pos_size_para, argp,
667				   sizeof(u.panel_pos_size_para)))
668			return -EFAULT;
669		break;
670
671	default:
672		return -EINVAL;
673	}
674
675	return 0;
676}
677
678static void viafb_fillrect(struct fb_info *info,
679	const struct fb_fillrect *rect)
680{
681	struct viafb_par *viapar = info->par;
682	struct viafb_shared *shared = viapar->shared;
683	u32 fg_color;
684	u8 rop;
685
686	if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
687		cfb_fillrect(info, rect);
688		return;
689	}
690
691	if (!rect->width || !rect->height)
692		return;
693
694	if (info->fix.visual == FB_VISUAL_TRUECOLOR)
695		fg_color = ((u32 *)info->pseudo_palette)[rect->color];
696	else
697		fg_color = rect->color;
698
699	if (rect->rop == ROP_XOR)
700		rop = 0x5A;
701	else
702		rop = 0xF0;
703
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);
710}
711
712static void viafb_copyarea(struct fb_info *info,
713	const struct fb_copyarea *area)
714{
715	struct viafb_par *viapar = info->par;
716	struct viafb_shared *shared = viapar->shared;
717
718	if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
719		cfb_copyarea(info, area);
720		return;
721	}
722
723	if (!area->width || !area->height)
724		return;
725
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);
733}
734
735static void viafb_imageblit(struct fb_info *info,
736	const struct fb_image *image)
737{
738	struct viafb_par *viapar = info->par;
739	struct viafb_shared *shared = viapar->shared;
740	u32 fg_color = 0, bg_color = 0;
741	u8 op;
742
743	if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
744		(image->depth != 1 && image->depth != viapar->depth)) {
745		cfb_imageblit(info, image);
746		return;
747	}
748
749	if (image->depth == 1) {
750		op = VIA_BITBLT_MONO;
751		if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
752			fg_color =
753				((u32 *)info->pseudo_palette)[image->fg_color];
754			bg_color =
755				((u32 *)info->pseudo_palette)[image->bg_color];
756		} else {
757			fg_color = image->fg_color;
758			bg_color = image->bg_color;
759		}
760	} else
761		op = VIA_BITBLT_COLOR;
762
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);
769}
770
771static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
772{
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;
778
779	if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
780		return -ENODEV;
781
782	/* LCD ouput does not support hw cursors (at least on VN896) */
783	if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
784		viafb_LCD_ON)
785		return -ENODEV;
786
787	viafb_show_hw_cursor(info, HW_Cursor_OFF);
788
789	if (cursor->set & FB_CUR_SETHOT) {
790		temp = (cursor->hot.x << 16) + cursor->hot.y;
791		writel(temp, engine + VIA_REG_CURSOR_ORG);
792	}
793
794	if (cursor->set & FB_CUR_SETPOS) {
795		yy = cursor->image.dy - info->var.yoffset;
796		xx = cursor->image.dx - info->var.xoffset;
797		temp = yy & 0xFFFF;
798		temp |= (xx << 16);
799		writel(temp, engine + VIA_REG_CURSOR_POS);
800	}
801
802	if (cursor->image.width <= 32 && cursor->image.height <= 32)
803		cur_size = 32;
804	else if (cursor->image.width <= 64 && cursor->image.height <= 64)
805		cur_size = 64;
806	else {
807		printk(KERN_WARNING "viafb_cursor: The cursor is too large "
808			"%dx%d", cursor->image.width, cursor->image.height);
809		return -ENXIO;
810	}
811
812	if (cursor->set & FB_CUR_SETSIZE) {
813		temp = readl(engine + VIA_REG_CURSOR_MODE);
814		if (cur_size == 32)
815			temp |= 0x2;
816		else
817			temp &= ~0x2;
818
819		writel(temp, engine + VIA_REG_CURSOR_MODE);
820	}
821
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) {
829			fg_color =
830				((info->cmap.red[fg_color] & 0xFFC0) << 14) |
831				((info->cmap.green[fg_color] & 0xFFC0) << 4) |
832				((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
833			bg_color =
834				((info->cmap.red[bg_color] & 0xFFC0) << 14) |
835				((info->cmap.green[bg_color] & 0xFFC0) << 4) |
836				((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
837		} else {
838			fg_color =
839				((info->cmap.red[fg_color] & 0xFF00) << 8) |
840				(info->cmap.green[fg_color] & 0xFF00) |
841				((info->cmap.blue[fg_color] & 0xFF00) >> 8);
842			bg_color =
843				((info->cmap.red[bg_color] & 0xFF00) << 8) |
844				(info->cmap.green[bg_color] & 0xFF00) |
845				((info->cmap.blue[bg_color] & 0xFF00) >> 8);
846		}
847
848		writel(bg_color, engine + VIA_REG_CURSOR_BG);
849		writel(fg_color, engine + VIA_REG_CURSOR_FG);
850	}
851
852	if (cursor->set & FB_CUR_SETSHAPE) {
853		struct {
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;
859
860		if (!cr_data)
861			return -ENOMEM;
862
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;
867				i += 1;
868			}
869		} else {
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;
875				i += 3;
876			}
877		}
878
879		switch (cursor->rop) {
880		case ROP_XOR:
881			for (i = 0; i < size; i++)
882				cr_data->data[i] = cursor->mask[i];
883			break;
884		case ROP_COPY:
885
886			for (i = 0; i < size; i++)
887				cr_data->data[i] = cursor->mask[i];
888			break;
889		default:
890			break;
891		}
892
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];
897				j += 2;
898			}
899		} else {
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];
905				j += 4;
906			}
907		}
908
909		memcpy_toio(viafbinfo->screen_base + viapar->shared->
910			cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
911		kfree(cr_data);
912	}
913
914	if (cursor->enable)
915		viafb_show_hw_cursor(info, HW_Cursor_ON);
916
917	return 0;
918}
919
920static int viafb_sync(struct fb_info *info)
921{
922	if (!(info->flags & FBINFO_HWACCEL_DISABLED))
923		viafb_wait_engine_idle(info);
924	return 0;
925}
926
927static int get_primary_device(void)
928{
929	int primary_device = 0;
930	/* Rule: device on iga1 path are the primary device. */
931	if (viafb_SAMM_ON) {
932		if (viafb_CRT_ON) {
933			if (viaparinfo->shared->iga1_devices & VIA_CRT) {
934				DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
935				primary_device = CRT_Device;
936			}
937		}
938		if (viafb_DVI_ON) {
939			if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
940				DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
941					viaparinfo->
942					tmds_setting_info->iga_path);
943				primary_device = DVI_Device;
944			}
945		}
946		if (viafb_LCD_ON) {
947			if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
948				DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
949					viaparinfo->
950					lvds_setting_info->iga_path);
951				primary_device = LCD_Device;
952			}
953		}
954		if (viafb_LCD2_ON) {
955			if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
956				DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
957					viaparinfo->
958					lvds_setting_info2->iga_path);
959				primary_device = LCD2_Device;
960			}
961		}
962	}
963	return primary_device;
964}
965
966static void retrieve_device_setting(struct viafb_ioctl_setting
967	*setting_info)
968{
969
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;
979
980	setting_info->samm_status = viafb_SAMM_ON;
981	setting_info->primary_device = get_primary_device();
982
983	setting_info->first_dev_bpp = viafb_bpp;
984	setting_info->second_dev_bpp = viafb_bpp1;
985
986	setting_info->first_dev_refresh = viafb_refresh;
987	setting_info->second_dev_refresh = viafb_refresh1;
988
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;
993
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;
998}
999
1000static int __init parse_active_dev(void)
1001{
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;
1015		} else {
1016			viafb_CRT_ON = STATE_ON;
1017			viafb_SAMM_ON = STATE_OFF;
1018		}
1019	} else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1020		/* 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")) {
1025		/* 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")) {
1030		/* 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")) {
1035		/* 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")) {
1040		/* 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")) {
1045		/* 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")) {
1058		/* CRT only */
1059		viafb_CRT_ON = STATE_ON;
1060		viafb_SAMM_ON = STATE_OFF;
1061	} else if (!strcmp(viafb_active_dev, "DVI")) {
1062		/* DVI only */
1063		viafb_DVI_ON = STATE_ON;
1064		viafb_SAMM_ON = STATE_OFF;
1065	} else if (!strcmp(viafb_active_dev, "LCD")) {
1066		/* LCD only */
1067		viafb_LCD_ON = STATE_ON;
1068		viafb_SAMM_ON = STATE_OFF;
1069	} else
1070		return -EINVAL;
1071
1072	return 0;
1073}
1074
1075static int parse_port(char *opt_str, int *output_interface)
1076{
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;
1087	else
1088		*output_interface = INTERFACE_NONE;
1089	return 0;
1090}
1091
1092static void parse_lcd_port(void)
1093{
1094	parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1095		output_interface);
1096	/*Initialize to avoid unexpected behavior */
1097	viaparinfo->chip_info->lvds_chip_info2.output_interface =
1098	INTERFACE_NONE;
1099
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.
1102		  output_interface);
1103}
1104
1105static void parse_dvi_port(void)
1106{
1107	parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1108		output_interface);
1109
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.
1112		  output_interface);
1113}
1114
1115#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1116
1117/*
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
1122 */
1123static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1124{
1125	u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1126	dvp0_data_dri =
1127	    (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1128	    (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1129	dvp0_clk_dri =
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);
1134	return 0;
1135}
1136
1137static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1138{
1139	return single_open(file, viafb_dvp0_proc_show, NULL);
1140}
1141
1142static ssize_t viafb_dvp0_proc_write(struct file *file,
1143	const char __user *buffer, size_t count, loff_t *pos)
1144{
1145	char buf[20], *value, *pbuf;
1146	u8 reg_val = 0;
1147	unsigned long length, i;
1148	if (count < 1)
1149		return -EINVAL;
1150	length = count > 20 ? 20 : count;
1151	if (copy_from_user(&buf[0], buffer, length))
1152		return -EFAULT;
1153	buf[length - 1] = '\0';	/*Ensure end string */
1154	pbuf = &buf[0];
1155	for (i = 0; i < 3; i++) {
1156		value = strsep(&pbuf, " ");
1157		if (value != NULL) {
1158			if (kstrtou8(value, 0, &reg_val) < 0)
1159				return -EINVAL;
1160			DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1161				  reg_val);
1162			switch (i) {
1163			case 0:
1164				viafb_write_reg_mask(CR96, VIACR,
1165					reg_val, 0x0f);
1166				break;
1167			case 1:
1168				viafb_write_reg_mask(SR2A, VIASR,
1169					reg_val << 4, BIT5);
1170				viafb_write_reg_mask(SR1B, VIASR,
1171					reg_val << 1, BIT1);
1172				break;
1173			case 2:
1174				viafb_write_reg_mask(SR2A, VIASR,
1175					reg_val << 3, BIT4);
1176				viafb_write_reg_mask(SR1E, VIASR,
1177					reg_val << 2, BIT2);
1178				break;
1179			default:
1180				break;
1181			}
1182		} else {
1183			break;
1184		}
1185	}
1186	return count;
1187}
1188
1189static const struct file_operations viafb_dvp0_proc_fops = {
1190	.owner		= THIS_MODULE,
1191	.open		= viafb_dvp0_proc_open,
1192	.read		= seq_read,
1193	.llseek		= seq_lseek,
1194	.release	= single_release,
1195	.write		= viafb_dvp0_proc_write,
1196};
1197
1198static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1199{
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);
1205	return 0;
1206}
1207
1208static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1209{
1210	return single_open(file, viafb_dvp1_proc_show, NULL);
1211}
1212
1213static ssize_t viafb_dvp1_proc_write(struct file *file,
1214	const char __user *buffer, size_t count, loff_t *pos)
1215{
1216	char buf[20], *value, *pbuf;
1217	u8 reg_val = 0;
1218	unsigned long length, i;
1219	if (count < 1)
1220		return -EINVAL;
1221	length = count > 20 ? 20 : count;
1222	if (copy_from_user(&buf[0], buffer, length))
1223		return -EFAULT;
1224	buf[length - 1] = '\0';	/*Ensure end string */
1225	pbuf = &buf[0];
1226	for (i = 0; i < 3; i++) {
1227		value = strsep(&pbuf, " ");
1228		if (value != NULL) {
1229			if (kstrtou8(value, 0, &reg_val) < 0)
1230				return -EINVAL;
1231			switch (i) {
1232			case 0:
1233				viafb_write_reg_mask(CR9B, VIACR,
1234					reg_val, 0x0f);
1235				break;
1236			case 1:
1237				viafb_write_reg_mask(SR65, VIASR,
1238					reg_val << 2, 0x0c);
1239				break;
1240			case 2:
1241				viafb_write_reg_mask(SR65, VIASR,
1242					reg_val, 0x03);
1243				break;
1244			default:
1245				break;
1246			}
1247		} else {
1248			break;
1249		}
1250	}
1251	return count;
1252}
1253
1254static const struct file_operations viafb_dvp1_proc_fops = {
1255	.owner		= THIS_MODULE,
1256	.open		= viafb_dvp1_proc_open,
1257	.read		= seq_read,
1258	.llseek		= seq_lseek,
1259	.release	= single_release,
1260	.write		= viafb_dvp1_proc_write,
1261};
1262
1263static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1264{
1265	u8 dfp_high = 0;
1266	dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1267	seq_printf(m, "%x\n", dfp_high);
1268	return 0;
1269}
1270
1271static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1272{
1273	return single_open(file, viafb_dfph_proc_show, NULL);
1274}
1275
1276static ssize_t viafb_dfph_proc_write(struct file *file,
1277	const char __user *buffer, size_t count, loff_t *pos)
1278{
1279	int err;
1280	u8 reg_val;
1281	err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1282	if (err)
1283		return err;
1284
1285	viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1286	return count;
1287}
1288
1289static const struct file_operations viafb_dfph_proc_fops = {
1290	.owner		= THIS_MODULE,
1291	.open		= viafb_dfph_proc_open,
1292	.read		= seq_read,
1293	.llseek		= seq_lseek,
1294	.release	= single_release,
1295	.write		= viafb_dfph_proc_write,
1296};
1297
1298static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1299{
1300	u8 dfp_low = 0;
1301	dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1302	seq_printf(m, "%x\n", dfp_low);
1303	return 0;
1304}
1305
1306static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1307{
1308	return single_open(file, viafb_dfpl_proc_show, NULL);
1309}
1310
1311static ssize_t viafb_dfpl_proc_write(struct file *file,
1312	const char __user *buffer, size_t count, loff_t *pos)
1313{
1314	int err;
1315	u8 reg_val;
1316	err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1317	if (err)
1318		return err;
1319
1320	viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1321	return count;
1322}
1323
1324static const struct file_operations viafb_dfpl_proc_fops = {
1325	.owner		= THIS_MODULE,
1326	.open		= viafb_dfpl_proc_open,
1327	.read		= seq_read,
1328	.llseek		= seq_lseek,
1329	.release	= single_release,
1330	.write		= viafb_dfpl_proc_write,
1331};
1332
1333static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1334{
1335	u8 vt1636_08 = 0, vt1636_09 = 0;
1336	switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1337	case VT1636_LVDS:
1338		vt1636_08 =
1339		    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1340		    &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1341		vt1636_09 =
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);
1345		break;
1346	default:
1347		break;
1348	}
1349	switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1350	case VT1636_LVDS:
1351		vt1636_08 =
1352		    viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1353			&viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1354		vt1636_09 =
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);
1358		break;
1359	default:
1360		break;
1361	}
1362	return 0;
1363}
1364
1365static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1366{
1367	return single_open(file, viafb_vt1636_proc_show, NULL);
1368}
1369
1370static ssize_t viafb_vt1636_proc_write(struct file *file,
1371	const char __user *buffer, size_t count, loff_t *pos)
1372{
1373	char buf[30], *value, *pbuf;
1374	struct IODATA reg_val;
1375	unsigned long length, i;
1376	if (count < 1)
1377		return -EINVAL;
1378	length = count > 30 ? 30 : count;
1379	if (copy_from_user(&buf[0], buffer, length))
1380		return -EFAULT;
1381	buf[length - 1] = '\0';	/*Ensure end string */
1382	pbuf = &buf[0];
1383	switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1384	case VT1636_LVDS:
1385		for (i = 0; i < 2; i++) {
1386			value = strsep(&pbuf, " ");
1387			if (value != NULL) {
1388				if (kstrtou8(value, 0, &reg_val.Data) < 0)
1389					return -EINVAL;
1390				switch (i) {
1391				case 0:
1392					reg_val.Index = 0x08;
1393					reg_val.Mask = 0x0f;
1394					viafb_gpio_i2c_write_mask_lvds
1395					    (viaparinfo->lvds_setting_info,
1396					    &viaparinfo->
1397					    chip_info->lvds_chip_info,
1398					     reg_val);
1399					break;
1400				case 1:
1401					reg_val.Index = 0x09;
1402					reg_val.Mask = 0x1f;
1403					viafb_gpio_i2c_write_mask_lvds
1404					    (viaparinfo->lvds_setting_info,
1405					    &viaparinfo->
1406					    chip_info->lvds_chip_info,
1407					     reg_val);
1408					break;
1409				default:
1410					break;
1411				}
1412			} else {
1413				break;
1414			}
1415		}
1416		break;
1417	default:
1418		break;
1419	}
1420	switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1421	case VT1636_LVDS:
1422		for (i = 0; i < 2; i++) {
1423			value = strsep(&pbuf, " ");
1424			if (value != NULL) {
1425				if (kstrtou8(value, 0, &reg_val.Data) < 0)
1426					return -EINVAL;
1427				switch (i) {
1428				case 0:
1429					reg_val.Index = 0x08;
1430					reg_val.Mask = 0x0f;
1431					viafb_gpio_i2c_write_mask_lvds
1432					    (viaparinfo->lvds_setting_info2,
1433					    &viaparinfo->
1434					    chip_info->lvds_chip_info2,
1435					     reg_val);
1436					break;
1437				case 1:
1438					reg_val.Index = 0x09;
1439					reg_val.Mask = 0x1f;
1440					viafb_gpio_i2c_write_mask_lvds
1441					    (viaparinfo->lvds_setting_info2,
1442					    &viaparinfo->
1443					    chip_info->lvds_chip_info2,
1444					     reg_val);
1445					break;
1446				default:
1447					break;
1448				}
1449			} else {
1450				break;
1451			}
1452		}
1453		break;
1454	default:
1455		break;
1456	}
1457	return count;
1458}
1459
1460static const struct file_operations viafb_vt1636_proc_fops = {
1461	.owner		= THIS_MODULE,
1462	.open		= viafb_vt1636_proc_open,
1463	.read		= seq_read,
1464	.llseek		= seq_lseek,
1465	.release	= single_release,
1466	.write		= viafb_vt1636_proc_write,
1467};
1468
1469#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1470
1471static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1472{
1473	via_odev_to_seq(m, supported_odev_map[
1474		viaparinfo->shared->chip_info.gfx_chip_name]);
1475	return 0;
1476}
1477
1478static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file)
1479{
1480	return single_open(file, viafb_sup_odev_proc_show, NULL);
1481}
1482
1483static const struct file_operations viafb_sup_odev_proc_fops = {
1484	.owner		= THIS_MODULE,
1485	.open		= viafb_sup_odev_proc_open,
1486	.read		= seq_read,
1487	.llseek		= seq_lseek,
1488	.release	= single_release,
1489};
1490
1491static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1492{
1493	char buf[64], *ptr = buf;
1494	u32 devices;
1495	bool add, sub;
1496
1497	if (count < 1 || count > 63)
1498		return -EINVAL;
1499	if (copy_from_user(&buf[0], buffer, count))
1500		return -EFAULT;
1501	buf[count] = '\0';
1502	add = buf[0] == '+';
1503	sub = buf[0] == '-';
1504	if (add || sub)
1505		ptr++;
1506	devices = via_parse_odev(ptr, &ptr);
1507	if (*ptr == '\n')
1508		ptr++;
1509	if (*ptr != 0)
1510		return -EINVAL;
1511	if (add)
1512		*odev |= devices;
1513	else if (sub)
1514		*odev &= ~devices;
1515	else
1516		*odev = devices;
1517	return count;
1518}
1519
1520static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1521{
1522	via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1523	return 0;
1524}
1525
1526static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1527{
1528	return single_open(file, viafb_iga1_odev_proc_show, NULL);
1529}
1530
1531static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1532	const char __user *buffer, size_t count, loff_t *pos)
1533{
1534	u32 dev_on, dev_off, dev_old, dev_new;
1535	ssize_t res;
1536
1537	dev_old = dev_new = viaparinfo->shared->iga1_devices;
1538	res = odev_update(buffer, count, &dev_new);
1539	if (res != count)
1540		return res;
1541	dev_off = dev_old & ~dev_new;
1542	dev_on = dev_new & ~dev_old;
1543	viaparinfo->shared->iga1_devices = dev_new;
1544	viaparinfo->shared->iga2_devices &= ~dev_new;
1545	via_set_state(dev_off, VIA_STATE_OFF);
1546	via_set_source(dev_new, IGA1);
1547	via_set_state(dev_on, VIA_STATE_ON);
1548	return res;
1549}
1550
1551static const struct file_operations viafb_iga1_odev_proc_fops = {
1552	.owner		= THIS_MODULE,
1553	.open		= viafb_iga1_odev_proc_open,
1554	.read		= seq_read,
1555	.llseek		= seq_lseek,
1556	.release	= single_release,
1557	.write		= viafb_iga1_odev_proc_write,
1558};
1559
1560static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1561{
1562	via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1563	return 0;
1564}
1565
1566static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1567{
1568	return single_open(file, viafb_iga2_odev_proc_show, NULL);
1569}
1570
1571static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1572	const char __user *buffer, size_t count, loff_t *pos)
1573{
1574	u32 dev_on, dev_off, dev_old, dev_new;
1575	ssize_t res;
1576
1577	dev_old = dev_new = viaparinfo->shared->iga2_devices;
1578	res = odev_update(buffer, count, &dev_new);
1579	if (res != count)
1580		return res;
1581	dev_off = dev_old & ~dev_new;
1582	dev_on = dev_new & ~dev_old;
1583	viaparinfo->shared->iga2_devices = dev_new;
1584	viaparinfo->shared->iga1_devices &= ~dev_new;
1585	via_set_state(dev_off, VIA_STATE_OFF);
1586	via_set_source(dev_new, IGA2);
1587	via_set_state(dev_on, VIA_STATE_ON);
1588	return res;
1589}
1590
1591static const struct file_operations viafb_iga2_odev_proc_fops = {
1592	.owner		= THIS_MODULE,
1593	.open		= viafb_iga2_odev_proc_open,
1594	.read		= seq_read,
1595	.llseek		= seq_lseek,
1596	.release	= single_release,
1597	.write		= viafb_iga2_odev_proc_write,
1598};
1599
1600#define IS_VT1636(lvds_chip)	((lvds_chip).lvds_chip_name == VT1636_LVDS)
1601static void viafb_init_proc(struct viafb_shared *shared)
1602{
1603	struct proc_dir_entry *iga1_entry, *iga2_entry,
1604		*viafb_entry = proc_mkdir("viafb", NULL);
1605
1606	shared->proc_entry = viafb_entry;
1607	if (viafb_entry) {
1608#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1609		proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1610		proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1611		proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1612		proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1613		if (IS_VT1636(shared->chip_info.lvds_chip_info)
1614			|| IS_VT1636(shared->chip_info.lvds_chip_info2))
1615			proc_create("vt1636", 0, viafb_entry,
1616				&viafb_vt1636_proc_fops);
1617#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1618
1619		proc_create("supported_output_devices", 0, viafb_entry,
1620			&viafb_sup_odev_proc_fops);
1621		iga1_entry = proc_mkdir("iga1", viafb_entry);
1622		shared->iga1_proc_entry = iga1_entry;
1623		proc_create("output_devices", 0, iga1_entry,
1624			&viafb_iga1_odev_proc_fops);
1625		iga2_entry = proc_mkdir("iga2", viafb_entry);
1626		shared->iga2_proc_entry = iga2_entry;
1627		proc_create("output_devices", 0, iga2_entry,
1628			&viafb_iga2_odev_proc_fops);
1629	}
1630}
1631static void viafb_remove_proc(struct viafb_shared *shared)
1632{
1633	struct proc_dir_entry *viafb_entry = shared->proc_entry,
1634		*iga1_entry = shared->iga1_proc_entry,
1635		*iga2_entry = shared->iga2_proc_entry;
1636
1637	if (!viafb_entry)
1638		return;
1639
1640	remove_proc_entry("output_devices", iga2_entry);
1641	remove_proc_entry("iga2", viafb_entry);
1642	remove_proc_entry("output_devices", iga1_entry);
1643	remove_proc_entry("iga1", viafb_entry);
1644	remove_proc_entry("supported_output_devices", viafb_entry);
1645
1646#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1647	remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1648	remove_proc_entry("dvp1", viafb_entry);
1649	remove_proc_entry("dfph", viafb_entry);
1650	remove_proc_entry("dfpl", viafb_entry);
1651	if (IS_VT1636(shared->chip_info.lvds_chip_info)
1652		|| IS_VT1636(shared->chip_info.lvds_chip_info2))
1653		remove_proc_entry("vt1636", viafb_entry);
1654#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1655
1656	remove_proc_entry("viafb", NULL);
1657}
1658#undef IS_VT1636
1659
1660static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1661{
1662	const struct fb_videomode *mode = NULL;
1663	char *ptr;
1664
1665	if (!str) {
1666		if (devices == VIA_CRT)
1667			mode = via_aux_get_preferred_mode(
1668				viaparinfo->shared->i2c_26);
1669		else if (devices == VIA_DVP1)
1670			mode = via_aux_get_preferred_mode(
1671				viaparinfo->shared->i2c_31);
1672
1673		if (mode) {
1674			*xres = mode->xres;
1675			*yres = mode->yres;
1676		} else if (machine_is_olpc()) {
1677			*xres = 1200;
1678			*yres = 900;
1679		} else {
1680			*xres = 640;
1681			*yres = 480;
1682		}
1683		return 0;
1684	}
1685
1686	*xres = simple_strtoul(str, &ptr, 10);
1687	if (ptr[0] != 'x')
1688		return -EINVAL;
1689
1690	*yres = simple_strtoul(&ptr[1], &ptr, 10);
1691	if (ptr[0])
1692		return -EINVAL;
1693
1694	return 0;
1695}
1696
1697
1698#ifdef CONFIG_PM
1699static int viafb_suspend(void *unused)
1700{
1701	console_lock();
1702	fb_set_suspend(viafbinfo, 1);
1703	viafb_sync(viafbinfo);
1704	console_unlock();
1705
1706	return 0;
1707}
1708
1709static int viafb_resume(void *unused)
1710{
1711	console_lock();
1712	if (viaparinfo->shared->vdev->engine_mmio)
1713		viafb_reset_engine(viaparinfo);
1714	viafb_set_par(viafbinfo);
1715	if (viafb_dual_fb)
1716		viafb_set_par(viafbinfo1);
1717	fb_set_suspend(viafbinfo, 0);
1718
1719	console_unlock();
1720	return 0;
1721}
1722
1723static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1724	.suspend = viafb_suspend,
1725	.resume = viafb_resume
1726};
1727
1728#endif
1729
1730static void i2c_bus_probe(struct viafb_shared *shared)
1731{
1732	/* should be always CRT */
1733	printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1734	shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1735
1736	/* seems to be usually DVP1 */
1737	printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1738	shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1739
1740	/* FIXME: what is this? */
1741	if (!machine_is_olpc()) {
1742		printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1743		shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1744	}
1745
1746	printk(KERN_INFO "viafb: Finished I2C bus probing");
1747}
1748
1749static void i2c_bus_free(struct viafb_shared *shared)
1750{
1751	via_aux_free(shared->i2c_26);
1752	via_aux_free(shared->i2c_31);
1753	via_aux_free(shared->i2c_2C);
1754}
1755
1756int via_fb_pci_probe(struct viafb_dev *vdev)
1757{
1758	u32 default_xres, default_yres;
1759	struct fb_var_screeninfo default_var;
1760	int rc;
1761	u32 viafb_par_length;
1762
1763	DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1764	memset(&default_var, 0, sizeof(default_var));
1765	viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1766
1767	/* Allocate fb_info and ***_par here, also including some other needed
1768	 * variables
1769	*/
1770	viafbinfo = framebuffer_alloc(viafb_par_length +
1771		ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1772		&vdev->pdev->dev);
1773	if (!viafbinfo) {
1774		printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1775		return -ENOMEM;
1776	}
1777
1778	viaparinfo = (struct viafb_par *)viafbinfo->par;
1779	viaparinfo->shared = viafbinfo->par + viafb_par_length;
1780	viaparinfo->shared->vdev = vdev;
1781	viaparinfo->vram_addr = 0;
1782	viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1783	viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1784	viaparinfo->lvds_setting_info2 =
1785		&viaparinfo->shared->lvds_setting_info2;
1786	viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1787
1788	i2c_bus_probe(viaparinfo->shared);
1789	if (viafb_dual_fb)
1790		viafb_SAMM_ON = 1;
1791	parse_lcd_port();
1792	parse_dvi_port();
1793
1794	viafb_init_chip_info(vdev->chip_type);
1795	/*
1796	 * The framebuffer will have been successfully mapped by
1797	 * the core (or we'd not be here), but we still need to
1798	 * set up our own accounting.
1799	 */
1800	viaparinfo->fbmem = vdev->fbmem_start;
1801	viaparinfo->memsize = vdev->fbmem_len;
1802	viaparinfo->fbmem_free = viaparinfo->memsize;
1803	viaparinfo->fbmem_used = 0;
1804	viafbinfo->screen_base = vdev->fbmem;
1805
1806	viafbinfo->fix.mmio_start = vdev->engine_start;
1807	viafbinfo->fix.mmio_len = vdev->engine_len;
1808	viafbinfo->node = 0;
1809	viafbinfo->fbops = &viafb_ops;
1810	viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1811
1812	viafbinfo->pseudo_palette = pseudo_pal;
1813	if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1814		viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1815			FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1816		default_var.accel_flags = FB_ACCELF_TEXT;
1817	} else {
1818		viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1819		default_var.accel_flags = 0;
1820	}
1821
1822	if (viafb_second_size && (viafb_second_size < 8)) {
1823		viafb_second_offset = viaparinfo->fbmem_free -
1824			viafb_second_size * 1024 * 1024;
1825	} else {
1826		viafb_second_size = 8;
1827		viafb_second_offset = viaparinfo->fbmem_free -
1828			viafb_second_size * 1024 * 1024;
1829	}
1830
1831	parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1832		&default_xres, &default_yres);
1833	if (viafb_SAMM_ON == 1)
1834		parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1835			&viafb_second_xres, &viafb_second_yres);
1836
1837	default_var.xres = default_xres;
1838	default_var.yres = default_yres;
1839	default_var.xres_virtual = default_xres;
1840	default_var.yres_virtual = default_yres;
1841	default_var.bits_per_pixel = viafb_bpp;
1842	viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1843		default_var.xres, default_var.yres, viafb_refresh));
1844	viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1845	viafbinfo->var = default_var;
1846
1847	if (viafb_dual_fb) {
1848		viafbinfo1 = framebuffer_alloc(viafb_par_length,
1849				&vdev->pdev->dev);
1850		if (!viafbinfo1) {
1851			printk(KERN_ERR
1852			"allocate the second framebuffer struct error\n");
1853			rc = -ENOMEM;
1854			goto out_fb_release;
1855		}
1856		viaparinfo1 = viafbinfo1->par;
1857		memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1858		viaparinfo1->vram_addr = viafb_second_offset;
1859		viaparinfo1->memsize = viaparinfo->memsize -
1860			viafb_second_offset;
1861		viaparinfo->memsize = viafb_second_offset;
1862		viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1863
1864		viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1865		viaparinfo1->fbmem_free = viaparinfo1->memsize -
1866			viaparinfo1->fbmem_used;
1867		viaparinfo->fbmem_free = viaparinfo->memsize;
1868		viaparinfo->fbmem_used = 0;
1869
1870		viaparinfo->iga_path = IGA1;
1871		viaparinfo1->iga_path = IGA2;
1872		memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1873		viafbinfo1->par = viaparinfo1;
1874		viafbinfo1->screen_base = viafbinfo->screen_base +
1875			viafb_second_offset;
1876
1877		default_var.xres = viafb_second_xres;
1878		default_var.yres = viafb_second_yres;
1879		default_var.xres_virtual = viafb_second_xres;
1880		default_var.yres_virtual = viafb_second_yres;
1881		default_var.bits_per_pixel = viafb_bpp1;
1882		viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1883			default_var.xres, default_var.yres, viafb_refresh1));
1884
1885		viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1886		viafb_check_var(&default_var, viafbinfo1);
1887		viafbinfo1->var = default_var;
1888		viafb_update_fix(viafbinfo1);
1889		viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1890			&viafbinfo1->fix);
1891	}
1892
1893	viafb_check_var(&viafbinfo->var, viafbinfo);
1894	viafb_update_fix(viafbinfo);
1895	viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1896		&viafbinfo->fix);
1897	default_var.activate = FB_ACTIVATE_NOW;
1898	rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1899	if (rc)
1900		goto out_fb1_release;
1901
1902	if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1903	    && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1904		rc = register_framebuffer(viafbinfo1);
1905		if (rc)
1906			goto out_dealloc_cmap;
1907	}
1908	rc = register_framebuffer(viafbinfo);
1909	if (rc)
1910		goto out_fb1_unreg_lcd_cle266;
1911
1912	if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1913			|| (viaparinfo->chip_info->gfx_chip_name !=
1914			UNICHROME_CLE266))) {
1915		rc = register_framebuffer(viafbinfo1);
1916		if (rc)
1917			goto out_fb_unreg;
1918	}
1919	DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1920		  viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1921		  default_var.yres, default_var.bits_per_pixel);
1922
1923	viafb_init_proc(viaparinfo->shared);
1924	viafb_init_dac(IGA2);
1925
1926#ifdef CONFIG_PM
1927	viafb_pm_register(&viafb_fb_pm_hooks);
1928#endif
1929	return 0;
1930
1931out_fb_unreg:
1932	unregister_framebuffer(viafbinfo);
1933out_fb1_unreg_lcd_cle266:
1934	if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1935	    && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1936		unregister_framebuffer(viafbinfo1);
1937out_dealloc_cmap:
1938	fb_dealloc_cmap(&viafbinfo->cmap);
1939out_fb1_release:
1940	framebuffer_release(viafbinfo1);
1941out_fb_release:
1942	i2c_bus_free(viaparinfo->shared);
1943	framebuffer_release(viafbinfo);
1944	return rc;
1945}
1946
1947void via_fb_pci_remove(struct pci_dev *pdev)
1948{
1949	DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1950	fb_dealloc_cmap(&viafbinfo->cmap);
1951	unregister_framebuffer(viafbinfo);
1952	if (viafb_dual_fb)
1953		unregister_framebuffer(viafbinfo1);
1954	viafb_remove_proc(viaparinfo->shared);
1955	i2c_bus_free(viaparinfo->shared);
1956	framebuffer_release(viafbinfo);
1957	if (viafb_dual_fb)
1958		framebuffer_release(viafbinfo1);
1959}
1960
1961#ifndef MODULE
1962static int __init viafb_setup(void)
1963{
1964	char *this_opt;
1965	char *options;
1966
1967	DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1968
1969	if (fb_get_options("viafb", &options))
1970		return -ENODEV;
1971
1972	if (!options || !*options)
1973		return 0;
1974
1975	while ((this_opt = strsep(&options, ",")) != NULL) {
1976		if (!*this_opt)
1977			continue;
1978
1979		if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1980			viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1981		} else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1982			viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1983		} else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1984			if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1985				return -EINVAL;
1986		} else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1987			if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1988				return -EINVAL;
1989		} else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1990			if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1991				return -EINVAL;
1992		} else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1993			if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1994				return -EINVAL;
1995		} else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1996			if (kstrtoint(this_opt + 21, 0,
1997				      &viafb_lcd_dsp_method) < 0)
1998				return -EINVAL;
1999		} else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
2000			if (kstrtoint(this_opt + 19, 0,
2001				      &viafb_lcd_panel_id) < 0)
2002				return -EINVAL;
2003		} else if (!strncmp(this_opt, "viafb_accel=", 12)) {
2004			if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
2005				return -EINVAL;
2006		} else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
2007			if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
2008				return -EINVAL;
2009		} else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
2010			viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2011		} else if (!strncmp(this_opt,
2012			"viafb_display_hardware_layout=", 30)) {
2013			if (kstrtoint(this_opt + 30, 0,
2014				      &viafb_display_hardware_layout) < 0)
2015				return -EINVAL;
2016		} else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2017			if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2018				return -EINVAL;
2019		} else if (!strncmp(this_opt,
2020			"viafb_platform_epia_dvi=", 24)) {
2021			if (kstrtoint(this_opt + 24, 0,
2022				      &viafb_platform_epia_dvi) < 0)
2023				return -EINVAL;
2024		} else if (!strncmp(this_opt,
2025			"viafb_device_lcd_dualedge=", 26)) {
2026			if (kstrtoint(this_opt + 26, 0,
2027				      &viafb_device_lcd_dualedge) < 0)
2028				return -EINVAL;
2029		} else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2030			if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2031				return -EINVAL;
2032		} else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2033			if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2034				return -EINVAL;
2035		} else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2036			viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2037		} else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2038			viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2039		}
2040	}
2041	return 0;
2042}
2043#endif
2044
2045/*
2046 * These are called out of via-core for now.
2047 */
2048int __init viafb_init(void)
2049{
2050	u32 dummy_x, dummy_y;
2051	int r = 0;
2052
2053	if (machine_is_olpc())
2054		/* Apply XO-1.5-specific configuration. */
2055		viafb_lcd_panel_id = 23;
2056
2057#ifndef MODULE
2058	r = viafb_setup();
2059	if (r < 0)
2060		return r;
2061#endif
2062	if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2063		|| !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2064		|| parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2065		|| !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2066		|| viafb_bpp < 0 || viafb_bpp > 32
2067		|| viafb_bpp1 < 0 || viafb_bpp1 > 32
2068		|| parse_active_dev())
2069		return -EINVAL;
2070
2071	printk(KERN_INFO
2072       "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2073	       VERSION_MAJOR, VERSION_MINOR);
2074	return r;
2075}
2076
2077void __exit viafb_exit(void)
2078{
2079	DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2080}
2081
2082static struct fb_ops viafb_ops = {
2083	.owner = THIS_MODULE,
2084	.fb_open = viafb_open,
2085	.fb_release = viafb_release,
2086	.fb_check_var = viafb_check_var,
2087	.fb_set_par = viafb_set_par,
2088	.fb_setcolreg = viafb_setcolreg,
2089	.fb_pan_display = viafb_pan_display,
2090	.fb_blank = viafb_blank,
2091	.fb_fillrect = viafb_fillrect,
2092	.fb_copyarea = viafb_copyarea,
2093	.fb_imageblit = viafb_imageblit,
2094	.fb_cursor = viafb_cursor,
2095	.fb_ioctl = viafb_ioctl,
2096	.fb_sync = viafb_sync,
2097};
2098
2099
2100#ifdef MODULE
2101module_param(viafb_mode, charp, S_IRUSR);
2102MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2103
2104module_param(viafb_mode1, charp, S_IRUSR);
2105MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2106
2107module_param(viafb_bpp, int, S_IRUSR);
2108MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2109
2110module_param(viafb_bpp1, int, S_IRUSR);
2111MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2112
2113module_param(viafb_refresh, int, S_IRUSR);
2114MODULE_PARM_DESC(viafb_refresh,
2115	"Set CRT viafb_refresh rate (default = 60)");
2116
2117module_param(viafb_refresh1, int, S_IRUSR);
2118MODULE_PARM_DESC(viafb_refresh1,
2119	"Set CRT refresh rate (default = 60)");
2120
2121module_param(viafb_lcd_panel_id, int, S_IRUSR);
2122MODULE_PARM_DESC(viafb_lcd_panel_id,
2123	"Set Flat Panel type(Default=1024x768)");
2124
2125module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2126MODULE_PARM_DESC(viafb_lcd_dsp_method,
2127	"Set Flat Panel display scaling method.(Default=Expandsion)");
2128
2129module_param(viafb_SAMM_ON, int, S_IRUSR);
2130MODULE_PARM_DESC(viafb_SAMM_ON,
2131	"Turn on/off flag of SAMM(Default=OFF)");
2132
2133module_param(viafb_accel, int, S_IRUSR);
2134MODULE_PARM_DESC(viafb_accel,
2135	"Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2136
2137module_param(viafb_active_dev, charp, S_IRUSR);
2138MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2139
2140module_param(viafb_display_hardware_layout, int, S_IRUSR);
2141MODULE_PARM_DESC(viafb_display_hardware_layout,
2142	"Display Hardware Layout (LCD Only, DVI Only...,etc)");
2143
2144module_param(viafb_second_size, int, S_IRUSR);
2145MODULE_PARM_DESC(viafb_second_size,
2146	"Set secondary device memory size");
2147
2148module_param(viafb_dual_fb, int, S_IRUSR);
2149MODULE_PARM_DESC(viafb_dual_fb,
2150	"Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2151
2152module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2153MODULE_PARM_DESC(viafb_platform_epia_dvi,
2154	"Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2155
2156module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2157MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2158	"Turn on/off flag of dual edge panel.(Default = OFF)");
2159
2160module_param(viafb_bus_width, int, S_IRUSR);
2161MODULE_PARM_DESC(viafb_bus_width,
2162	"Set bus width of panel.(Default = 12)");
2163
2164module_param(viafb_lcd_mode, int, S_IRUSR);
2165MODULE_PARM_DESC(viafb_lcd_mode,
2166	"Set Flat Panel mode(Default=OPENLDI)");
2167
2168module_param(viafb_lcd_port, charp, S_IRUSR);
2169MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2170
2171module_param(viafb_dvi_port, charp, S_IRUSR);
2172MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2173
2174MODULE_LICENSE("GPL");
2175#endif
2176