1	// SPDX-License-Identifier: GPL-2.0-or-later
2	/*
3	* Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
4	* Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
5
6	*/
7
8	#include <linux/compiler.h>
9	#include <linux/module.h>
10	#include <linux/seq_file.h>
11	#include <linux/slab.h>
12	#include <linux/stat.h>
13	#include <linux/via-core.h>
14	#include <linux/via_i2c.h>
15
16	#define _MASTER_FILE
17	#include "global.h"
18
19	static char *viafb_name = "Via";
20	static u32 pseudo_pal[17];
21
22	/* video mode */
23	static char *viafb_mode;
24	static char *viafb_mode1;
25	static int viafb_bpp = 32;
26	static int viafb_bpp1 = 32;
27
28	static unsigned int viafb_second_offset;
29	static int viafb_second_size;
30
31	static int viafb_accel = 1;
32
33	/* Added for specifying active devices.*/
34	static char *viafb_active_dev;
35
36	/*Added for specify lcd output port*/
37	static char *viafb_lcd_port = "";
38	static char *viafb_dvi_port = "";
39
40	static void retrieve_device_setting(struct viafb_ioctl_setting
41	*setting_info);
42	static int viafb_pan_display(struct fb_var_screeninfo *var,
43	struct fb_info *info);
44
45	static struct fb_ops viafb_ops;
46
47	/* supported output devices on each IGP
48	* only CX700, VX800, VX855, VX900 were documented
49	* VIA_CRT should be everywhere
50	* VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
51	* source selection on CX700 and later
52	* K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
53	*/
54	static const u32 supported_odev_map[] = {
55	[UNICHROME_CLE266] = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
56	[UNICHROME_K400] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
57	| VIA_LVDS2,
58	[UNICHROME_K800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
59	| VIA_LVDS2,
60	[UNICHROME_PM800] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
61	| VIA_LVDS2,
62	[UNICHROME_CN700] = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
63	| VIA_LVDS2,
64	[UNICHROME_CX700] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
65	[UNICHROME_CN750] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
66	[UNICHROME_K8M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
67	[UNICHROME_P4M890] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
68	[UNICHROME_P4M900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
69	[UNICHROME_VX800] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
70	[UNICHROME_VX855] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
71	[UNICHROME_VX900] = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
72	};
73
74	static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
75	{
76	var->grayscale = 0;
77	var->red.msb_right = 0;
78	var->green.msb_right = 0;
79	var->blue.msb_right = 0;
80	var->transp.offset = 0;
81	var->transp.length = 0;
82	var->transp.msb_right = 0;
83	var->nonstd = 0;
84	switch (depth) {
85	case 8:
86	var->bits_per_pixel = 8;
87	var->red.offset = 0;
88	var->green.offset = 0;
89	var->blue.offset = 0;
90	var->red.length = 8;
91	var->green.length = 8;
92	var->blue.length = 8;
93	break;
94	case 15:
95	var->bits_per_pixel = 16;
96	var->red.offset = 10;
97	var->green.offset = 5;
98	var->blue.offset = 0;
99	var->red.length = 5;
100	var->green.length = 5;
101	var->blue.length = 5;
102	break;
103	case 16:
104	var->bits_per_pixel = 16;
105	var->red.offset = 11;
106	var->green.offset = 5;
107	var->blue.offset = 0;
108	var->red.length = 5;
109	var->green.length = 6;
110	var->blue.length = 5;
111	break;
112	case 24:
113	var->bits_per_pixel = 32;
114	var->red.offset = 16;
115	var->green.offset = 8;
116	var->blue.offset = 0;
117	var->red.length = 8;
118	var->green.length = 8;
119	var->blue.length = 8;
120	break;
121	case 30:
122	var->bits_per_pixel = 32;
123	var->red.offset = 20;
124	var->green.offset = 10;
125	var->blue.offset = 0;
126	var->red.length = 10;
127	var->green.length = 10;
128	var->blue.length = 10;
129	break;
130	}
131	}
132
133	static void viafb_update_fix(struct fb_info *info)
134	{
135	u32 bpp = info->var.bits_per_pixel;
136
137	info->fix.visual =
138	bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
139	info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
140	VIA_PITCH_SIZE);
141	}
142
143	static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
144	struct viafb_par *viaparinfo)
145	{
146	memset(fix, 0, sizeof(struct fb_fix_screeninfo));
147	strcpy(p: fix->id, q: viafb_name);
148
149	fix->smem_start = viaparinfo->fbmem;
150	fix->smem_len = viaparinfo->fbmem_free;
151
152	fix->type = FB_TYPE_PACKED_PIXELS;
153	fix->type_aux = 0;
154	fix->visual = FB_VISUAL_TRUECOLOR;
155
156	fix->xpanstep = fix->ywrapstep = 0;
157	fix->ypanstep = 1;
158
159	/* Just tell the accel name */
160	viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
161	}
162	static int viafb_open(struct fb_info *info, int user)
163	{
164	DEBUG_MSG(KERN_INFO "viafb_open!\n");
165	return 0;
166	}
167
168	static int viafb_release(struct fb_info *info, int user)
169	{
170	DEBUG_MSG(KERN_INFO "viafb_release!\n");
171	return 0;
172	}
173
174	static inline int get_var_refresh(struct fb_var_screeninfo *var)
175	{
176	u32 htotal, vtotal;
177
178	htotal = var->left_margin + var->xres + var->right_margin
179	+ var->hsync_len;
180	vtotal = var->upper_margin + var->yres + var->lower_margin
181	+ var->vsync_len;
182	return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
183	}
184
185	static int viafb_check_var(struct fb_var_screeninfo *var,
186	struct fb_info *info)
187	{
188	int depth, refresh;
189	struct viafb_par *ppar = info->par;
190	u32 line;
191
192	DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
193	/* Sanity check */
194	/* HW neither support interlacte nor double-scaned mode */
195	if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
196	return -EINVAL;
197
198	/* the refresh rate is not important here, as we only want to know
199	* whether the resolution exists
200	*/
201	if (!viafb_get_best_mode(hres: var->xres, vres: var->yres, refresh: 60)) {
202	DEBUG_MSG(KERN_INFO
203	"viafb: Mode %dx%dx%d not supported!!\n",
204	var->xres, var->yres, var->bits_per_pixel);
205	return -EINVAL;
206	}
207
208	depth = fb_get_color_depth(var, fix: &info->fix);
209	if (!depth)
210	depth = var->bits_per_pixel;
211
212	if (depth < 0 || depth > 32)
213	return -EINVAL;
214	else if (!depth)
215	depth = 24;
216	else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
217	depth = 15;
218	else if (depth == 30)
219	depth = 30;
220	else if (depth <= 8)
221	depth = 8;
222	else if (depth <= 16)
223	depth = 16;
224	else
225	depth = 24;
226
227	viafb_fill_var_color_info(var, depth);
228	if (var->xres_virtual < var->xres)
229	var->xres_virtual = var->xres;
230
231	line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
232	VIA_PITCH_SIZE);
233	if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
234	return -EINVAL;
235
236	/* Based on var passed in to calculate the refresh,
237	* because our driver use some modes special.
238	*/
239	refresh = viafb_get_refresh(hres: var->xres, vres: var->yres,
240	float_refresh: get_var_refresh(var));
241
242	/* Adjust var according to our driver's own table */
243	viafb_fill_var_timing_info(var,
244	mode: viafb_get_best_mode(hres: var->xres, vres: var->yres, refresh));
245	if (var->accel_flags & FB_ACCELF_TEXT &&
246	!ppar->shared->vdev->engine_mmio)
247	var->accel_flags = 0;
248
249	return 0;
250	}
251
252	static int viafb_set_par(struct fb_info *info)
253	{
254	struct viafb_par *viapar = info->par;
255	int refresh;
256	DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
257
258	viafb_update_fix(info);
259	viapar->depth = fb_get_color_depth(var: &info->var, fix: &info->fix);
260	viafb_update_device_setting(hres: viafbinfo->var.xres, vres: viafbinfo->var.yres,
261	bpp: viafbinfo->var.bits_per_pixel, flag: 0);
262
263	if (viafb_dual_fb) {
264	viafb_update_device_setting(hres: viafbinfo1->var.xres,
265	vres: viafbinfo1->var.yres, bpp: viafbinfo1->var.bits_per_pixel,
266	flag: 1);
267	} else if (viafb_SAMM_ON == 1) {
268	DEBUG_MSG(KERN_INFO
269	"viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
270	viafb_second_xres, viafb_second_yres, viafb_bpp1);
271
272	viafb_update_device_setting(hres: viafb_second_xres,
273	vres: viafb_second_yres, bpp: viafb_bpp1, flag: 1);
274	}
275
276	refresh = get_var_refresh(var: &info->var);
277	if (viafb_dual_fb && viapar->iga_path == IGA2) {
278	viafb_bpp1 = info->var.bits_per_pixel;
279	viafb_refresh1 = refresh;
280	} else {
281	viafb_bpp = info->var.bits_per_pixel;
282	viafb_refresh = refresh;
283	}
284
285	if (info->var.accel_flags & FB_ACCELF_TEXT)
286	info->flags &= ~FBINFO_HWACCEL_DISABLED;
287	else
288	info->flags |= FBINFO_HWACCEL_DISABLED;
289	viafb_setmode();
290	viafb_pan_display(var: &info->var, info);
291
292	return 0;
293	}
294
295	/* Set one color register */
296	static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
297	unsigned blue, unsigned transp, struct fb_info *info)
298	{
299	struct viafb_par *viapar = info->par;
300	u32 r, g, b;
301
302	if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
303	if (regno > 255)
304	return -EINVAL;
305
306	if (!viafb_dual_fb || viapar->iga_path == IGA1)
307	viafb_set_primary_color_register(index: regno, red: red >> 8,
308	green: green >> 8, blue: blue >> 8);
309
310	if (!viafb_dual_fb || viapar->iga_path == IGA2)
311	viafb_set_secondary_color_register(index: regno, red: red >> 8,
312	green: green >> 8, blue: blue >> 8);
313	} else {
314	if (regno > 15)
315	return -EINVAL;
316
317	r = (red >> (16 - info->var.red.length))
318	<< info->var.red.offset;
319	b = (blue >> (16 - info->var.blue.length))
320	<< info->var.blue.offset;
321	g = (green >> (16 - info->var.green.length))
322	<< info->var.green.offset;
323	((u32 *) info->pseudo_palette)[regno] = r | g | b;
324	}
325
326	return 0;
327	}
328
329	static int viafb_pan_display(struct fb_var_screeninfo *var,
330	struct fb_info *info)
331	{
332	struct viafb_par *viapar = info->par;
333	u32 vram_addr = viapar->vram_addr
334	+ var->yoffset * info->fix.line_length
335	+ var->xoffset * info->var.bits_per_pixel / 8;
336
337	DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
338	if (!viafb_dual_fb) {
339	via_set_primary_address(addr: vram_addr);
340	via_set_secondary_address(addr: vram_addr);
341	} else if (viapar->iga_path == IGA1)
342	via_set_primary_address(addr: vram_addr);
343	else
344	via_set_secondary_address(addr: vram_addr);
345
346	return 0;
347	}
348
349	static int viafb_blank(int blank_mode, struct fb_info *info)
350	{
351	DEBUG_MSG(KERN_INFO "viafb_blank!\n");
352	/* clear DPMS setting */
353
354	switch (blank_mode) {
355	case FB_BLANK_UNBLANK:
356	/* Screen: On, HSync: On, VSync: On */
357	/* control CRT monitor power management */
358	via_set_state(VIA_CRT, VIA_STATE_ON);
359	break;
360	case FB_BLANK_HSYNC_SUSPEND:
361	/* Screen: Off, HSync: Off, VSync: On */
362	/* control CRT monitor power management */
363	via_set_state(VIA_CRT, VIA_STATE_STANDBY);
364	break;
365	case FB_BLANK_VSYNC_SUSPEND:
366	/* Screen: Off, HSync: On, VSync: Off */
367	/* control CRT monitor power management */
368	via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
369	break;
370	case FB_BLANK_POWERDOWN:
371	/* Screen: Off, HSync: Off, VSync: Off */
372	/* control CRT monitor power management */
373	via_set_state(VIA_CRT, VIA_STATE_OFF);
374	break;
375	}
376
377	return 0;
378	}
379
380	static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
381	{
382	union {
383	struct viafb_ioctl_mode viamode;
384	struct viafb_ioctl_samm viasamm;
385	struct viafb_driver_version driver_version;
386	struct fb_var_screeninfo sec_var;
387	struct _panel_size_pos_info panel_pos_size_para;
388	struct viafb_ioctl_setting viafb_setting;
389	struct device_t active_dev;
390	} u;
391	u32 state_info = 0;
392	u32 *viafb_gamma_table;
393	char driver_name[] = "viafb";
394
395	u32 __user *argp = (u32 __user *) arg;
396	u32 gpu32;
397
398	DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
399	printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
400	memset(&u, 0, sizeof(u));
401
402	switch (cmd) {
403	case VIAFB_GET_CHIP_INFO:
404	if (copy_to_user(to: argp, from: viaparinfo->chip_info,
405	n: sizeof(struct chip_information)))
406	return -EFAULT;
407	break;
408	case VIAFB_GET_INFO_SIZE:
409	return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
410	case VIAFB_GET_INFO:
411	return viafb_ioctl_get_viafb_info(arg);
412	case VIAFB_HOTPLUG:
413	return put_user(viafb_ioctl_hotplug(info->var.xres,
414	info->var.yres,
415	info->var.bits_per_pixel), argp);
416	case VIAFB_SET_HOTPLUG_FLAG:
417	if (copy_from_user(to: &gpu32, from: argp, n: sizeof(gpu32)))
418	return -EFAULT;
419	viafb_hotplug = (gpu32) ? 1 : 0;
420	break;
421	case VIAFB_GET_RESOLUTION:
422	u.viamode.xres = (u32) viafb_hotplug_Xres;
423	u.viamode.yres = (u32) viafb_hotplug_Yres;
424	u.viamode.refresh = (u32) viafb_hotplug_refresh;
425	u.viamode.bpp = (u32) viafb_hotplug_bpp;
426	if (viafb_SAMM_ON == 1) {
427	u.viamode.xres_sec = viafb_second_xres;
428	u.viamode.yres_sec = viafb_second_yres;
429	u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
430	u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
431	u.viamode.refresh_sec = viafb_refresh1;
432	u.viamode.bpp_sec = viafb_bpp1;
433	} else {
434	u.viamode.xres_sec = 0;
435	u.viamode.yres_sec = 0;
436	u.viamode.virtual_xres_sec = 0;
437	u.viamode.virtual_yres_sec = 0;
438	u.viamode.refresh_sec = 0;
439	u.viamode.bpp_sec = 0;
440	}
441	if (copy_to_user(to: argp, from: &u.viamode, n: sizeof(u.viamode)))
442	return -EFAULT;
443	break;
444	case VIAFB_GET_SAMM_INFO:
445	u.viasamm.samm_status = viafb_SAMM_ON;
446
447	if (viafb_SAMM_ON == 1) {
448	if (viafb_dual_fb) {
449	u.viasamm.size_prim = viaparinfo->fbmem_free;
450	u.viasamm.size_sec = viaparinfo1->fbmem_free;
451	} else {
452	if (viafb_second_size) {
453	u.viasamm.size_prim =
454	viaparinfo->fbmem_free -
455	viafb_second_size * 1024 * 1024;
456	u.viasamm.size_sec =
457	viafb_second_size * 1024 * 1024;
458	} else {
459	u.viasamm.size_prim =
460	viaparinfo->fbmem_free >> 1;
461	u.viasamm.size_sec =
462	(viaparinfo->fbmem_free >> 1);
463	}
464	}
465	u.viasamm.mem_base = viaparinfo->fbmem;
466	u.viasamm.offset_sec = viafb_second_offset;
467	} else {
468	u.viasamm.size_prim =
469	viaparinfo->memsize - viaparinfo->fbmem_used;
470	u.viasamm.size_sec = 0;
471	u.viasamm.mem_base = viaparinfo->fbmem;
472	u.viasamm.offset_sec = 0;
473	}
474
475	if (copy_to_user(to: argp, from: &u.viasamm, n: sizeof(u.viasamm)))
476	return -EFAULT;
477
478	break;
479	case VIAFB_TURN_ON_OUTPUT_DEVICE:
480	if (copy_from_user(to: &gpu32, from: argp, n: sizeof(gpu32)))
481	return -EFAULT;
482	if (gpu32 & CRT_Device)
483	via_set_state(VIA_CRT, VIA_STATE_ON);
484	if (gpu32 & DVI_Device)
485	viafb_dvi_enable();
486	if (gpu32 & LCD_Device)
487	viafb_lcd_enable();
488	break;
489	case VIAFB_TURN_OFF_OUTPUT_DEVICE:
490	if (copy_from_user(to: &gpu32, from: argp, n: sizeof(gpu32)))
491	return -EFAULT;
492	if (gpu32 & CRT_Device)
493	via_set_state(VIA_CRT, VIA_STATE_OFF);
494	if (gpu32 & DVI_Device)
495	viafb_dvi_disable();
496	if (gpu32 & LCD_Device)
497	viafb_lcd_disable();
498	break;
499	case VIAFB_GET_DEVICE:
500	u.active_dev.crt = viafb_CRT_ON;
501	u.active_dev.dvi = viafb_DVI_ON;
502	u.active_dev.lcd = viafb_LCD_ON;
503	u.active_dev.samm = viafb_SAMM_ON;
504	u.active_dev.primary_dev = viafb_primary_dev;
505
506	u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
507	u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
508	u.active_dev.lcd_mode = viafb_lcd_mode;
509
510	u.active_dev.xres = viafb_hotplug_Xres;
511	u.active_dev.yres = viafb_hotplug_Yres;
512
513	u.active_dev.xres1 = viafb_second_xres;
514	u.active_dev.yres1 = viafb_second_yres;
515
516	u.active_dev.bpp = viafb_bpp;
517	u.active_dev.bpp1 = viafb_bpp1;
518	u.active_dev.refresh = viafb_refresh;
519	u.active_dev.refresh1 = viafb_refresh1;
520
521	u.active_dev.epia_dvi = viafb_platform_epia_dvi;
522	u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
523	u.active_dev.bus_width = viafb_bus_width;
524
525	if (copy_to_user(to: argp, from: &u.active_dev, n: sizeof(u.active_dev)))
526	return -EFAULT;
527	break;
528
529	case VIAFB_GET_DRIVER_VERSION:
530	u.driver_version.iMajorNum = VERSION_MAJOR;
531	u.driver_version.iKernelNum = VERSION_KERNEL;
532	u.driver_version.iOSNum = VERSION_OS;
533	u.driver_version.iMinorNum = VERSION_MINOR;
534
535	if (copy_to_user(to: argp, from: &u.driver_version,
536	n: sizeof(u.driver_version)))
537	return -EFAULT;
538
539	break;
540
541	case VIAFB_GET_DEVICE_INFO:
542
543	retrieve_device_setting(setting_info: &u.viafb_setting);
544
545	if (copy_to_user(to: argp, from: &u.viafb_setting,
546	n: sizeof(u.viafb_setting)))
547	return -EFAULT;
548
549	break;
550
551	case VIAFB_GET_DEVICE_SUPPORT:
552	viafb_get_device_support_state(support_state: &state_info);
553	if (put_user(state_info, argp))
554	return -EFAULT;
555	break;
556
557	case VIAFB_GET_DEVICE_CONNECT:
558	viafb_get_device_connect_state(connect_state: &state_info);
559	if (put_user(state_info, argp))
560	return -EFAULT;
561	break;
562
563	case VIAFB_GET_PANEL_SUPPORT_EXPAND:
564	state_info =
565	viafb_lcd_get_support_expand_state(xres: info->var.xres,
566	yres: info->var.yres);
567	if (put_user(state_info, argp))
568	return -EFAULT;
569	break;
570
571	case VIAFB_GET_DRIVER_NAME:
572	if (copy_to_user(to: argp, from: driver_name, n: sizeof(driver_name)))
573	return -EFAULT;
574	break;
575
576	case VIAFB_SET_GAMMA_LUT:
577	viafb_gamma_table = memdup_array_user(src: argp, n: 256, size: sizeof(u32));
578	if (IS_ERR(ptr: viafb_gamma_table))
579	return PTR_ERR(ptr: viafb_gamma_table);
580	viafb_set_gamma_table(bpp: viafb_bpp, gamma_table: viafb_gamma_table);
581	kfree(objp: viafb_gamma_table);
582	break;
583
584	case VIAFB_GET_GAMMA_LUT:
585	viafb_gamma_table = kmalloc_array(n: 256, size: sizeof(u32),
586	GFP_KERNEL);
587	if (!viafb_gamma_table)
588	return -ENOMEM;
589	viafb_get_gamma_table(gamma_table: viafb_gamma_table);
590	if (copy_to_user(to: argp, from: viafb_gamma_table,
591	n: 256 * sizeof(u32))) {
592	kfree(objp: viafb_gamma_table);
593	return -EFAULT;
594	}
595	kfree(objp: viafb_gamma_table);
596	break;
597
598	case VIAFB_GET_GAMMA_SUPPORT_STATE:
599	viafb_get_gamma_support_state(bpp: viafb_bpp, support_state: &state_info);
600	if (put_user(state_info, argp))
601	return -EFAULT;
602	break;
603	case VIAFB_SYNC_SURFACE:
604	DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
605	break;
606	case VIAFB_GET_DRIVER_CAPS:
607	break;
608
609	case VIAFB_GET_PANEL_MAX_SIZE:
610	if (copy_from_user(to: &u.panel_pos_size_para, from: argp,
611	n: sizeof(u.panel_pos_size_para)))
612	return -EFAULT;
613	u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
614	if (copy_to_user(to: argp, from: &u.panel_pos_size_para,
615	n: sizeof(u.panel_pos_size_para)))
616	return -EFAULT;
617	break;
618	case VIAFB_GET_PANEL_MAX_POSITION:
619	if (copy_from_user(to: &u.panel_pos_size_para, from: argp,
620	n: sizeof(u.panel_pos_size_para)))
621	return -EFAULT;
622	u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
623	if (copy_to_user(to: argp, from: &u.panel_pos_size_para,
624	n: sizeof(u.panel_pos_size_para)))
625	return -EFAULT;
626	break;
627
628	case VIAFB_GET_PANEL_POSITION:
629	if (copy_from_user(to: &u.panel_pos_size_para, from: argp,
630	n: sizeof(u.panel_pos_size_para)))
631	return -EFAULT;
632	u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
633	if (copy_to_user(to: argp, from: &u.panel_pos_size_para,
634	n: sizeof(u.panel_pos_size_para)))
635	return -EFAULT;
636	break;
637	case VIAFB_GET_PANEL_SIZE:
638	if (copy_from_user(to: &u.panel_pos_size_para, from: argp,
639	n: sizeof(u.panel_pos_size_para)))
640	return -EFAULT;
641	u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
642	if (copy_to_user(to: argp, from: &u.panel_pos_size_para,
643	n: sizeof(u.panel_pos_size_para)))
644	return -EFAULT;
645	break;
646
647	case VIAFB_SET_PANEL_POSITION:
648	if (copy_from_user(to: &u.panel_pos_size_para, from: argp,
649	n: sizeof(u.panel_pos_size_para)))
650	return -EFAULT;
651	break;
652	case VIAFB_SET_PANEL_SIZE:
653	if (copy_from_user(to: &u.panel_pos_size_para, from: argp,
654	n: sizeof(u.panel_pos_size_para)))
655	return -EFAULT;
656	break;
657
658	default:
659	return -EINVAL;
660	}
661
662	return 0;
663	}
664
665	static void viafb_fillrect(struct fb_info *info,
666	const struct fb_fillrect *rect)
667	{
668	struct viafb_par *viapar = info->par;
669	struct viafb_shared *shared = viapar->shared;
670	u32 fg_color;
671	u8 rop;
672
673	if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
674	cfb_fillrect(info, rect);
675	return;
676	}
677
678	if (!rect->width || !rect->height)
679	return;
680
681	if (info->fix.visual == FB_VISUAL_TRUECOLOR)
682	fg_color = ((u32 *)info->pseudo_palette)[rect->color];
683	else
684	fg_color = rect->color;
685
686	if (rect->rop == ROP_XOR)
687	rop = 0x5A;
688	else
689	rop = 0xF0;
690
691	DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
692	if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
693	rect->width, rect->height, info->var.bits_per_pixel,
694	viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
695	NULL, 0, 0, 0, 0, fg_color, 0, rop))
696	cfb_fillrect(info, rect);
697	}
698
699	static void viafb_copyarea(struct fb_info *info,
700	const struct fb_copyarea *area)
701	{
702	struct viafb_par *viapar = info->par;
703	struct viafb_shared *shared = viapar->shared;
704
705	if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
706	cfb_copyarea(info, area);
707	return;
708	}
709
710	if (!area->width || !area->height)
711	return;
712
713	DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
714	if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
715	area->width, area->height, info->var.bits_per_pixel,
716	viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
717	NULL, viapar->vram_addr, info->fix.line_length,
718	area->sx, area->sy, 0, 0, 0))
719	cfb_copyarea(info, area);
720	}
721
722	static void viafb_imageblit(struct fb_info *info,
723	const struct fb_image *image)
724	{
725	struct viafb_par *viapar = info->par;
726	struct viafb_shared *shared = viapar->shared;
727	u32 fg_color = 0, bg_color = 0;
728	u8 op;
729
730	if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
731	(image->depth != 1 && image->depth != viapar->depth)) {
732	cfb_imageblit(info, image);
733	return;
734	}
735
736	if (image->depth == 1) {
737	op = VIA_BITBLT_MONO;
738	if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
739	fg_color =
740	((u32 *)info->pseudo_palette)[image->fg_color];
741	bg_color =
742	((u32 *)info->pseudo_palette)[image->bg_color];
743	} else {
744	fg_color = image->fg_color;
745	bg_color = image->bg_color;
746	}
747	} else
748	op = VIA_BITBLT_COLOR;
749
750	DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
751	if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
752	image->width, image->height, info->var.bits_per_pixel,
753	viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
754	(u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
755	cfb_imageblit(info, image);
756	}
757
758	static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
759	{
760	struct viafb_par *viapar = info->par;
761	void __iomem *engine = viapar->shared->vdev->engine_mmio;
762	u32 temp, xx, yy, bg_color = 0, fg_color = 0,
763	chip_name = viapar->shared->chip_info.gfx_chip_name;
764	int i, j = 0, cur_size = 64;
765
766	if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
767	return -ENODEV;
768
769	/* LCD ouput does not support hw cursors (at least on VN896) */
770	if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
771	viafb_LCD_ON)
772	return -ENODEV;
773
774	viafb_show_hw_cursor(info, HW_Cursor_OFF);
775
776	if (cursor->set & FB_CUR_SETHOT) {
777	temp = (cursor->hot.x << 16) + cursor->hot.y;
778	writel(val: temp, addr: engine + VIA_REG_CURSOR_ORG);
779	}
780
781	if (cursor->set & FB_CUR_SETPOS) {
782	yy = cursor->image.dy - info->var.yoffset;
783	xx = cursor->image.dx - info->var.xoffset;
784	temp = yy & 0xFFFF;
785	temp |= (xx << 16);
786	writel(val: temp, addr: engine + VIA_REG_CURSOR_POS);
787	}
788
789	if (cursor->image.width <= 32 && cursor->image.height <= 32)
790	cur_size = 32;
791	else if (cursor->image.width <= 64 && cursor->image.height <= 64)
792	cur_size = 64;
793	else {
794	printk(KERN_WARNING "viafb_cursor: The cursor is too large "
795	"%dx%d", cursor->image.width, cursor->image.height);
796	return -ENXIO;
797	}
798
799	if (cursor->set & FB_CUR_SETSIZE) {
800	temp = readl(addr: engine + VIA_REG_CURSOR_MODE);
801	if (cur_size == 32)
802	temp |= 0x2;
803	else
804	temp &= ~0x2;
805
806	writel(val: temp, addr: engine + VIA_REG_CURSOR_MODE);
807	}
808
809	if (cursor->set & FB_CUR_SETCMAP) {
810	fg_color = cursor->image.fg_color;
811	bg_color = cursor->image.bg_color;
812	if (chip_name == UNICHROME_CX700 ||
813	chip_name == UNICHROME_VX800 ||
814	chip_name == UNICHROME_VX855 ||
815	chip_name == UNICHROME_VX900) {
816	fg_color =
817	((info->cmap.red[fg_color] & 0xFFC0) << 14) |
818	((info->cmap.green[fg_color] & 0xFFC0) << 4) |
819	((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
820	bg_color =
821	((info->cmap.red[bg_color] & 0xFFC0) << 14) |
822	((info->cmap.green[bg_color] & 0xFFC0) << 4) |
823	((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
824	} else {
825	fg_color =
826	((info->cmap.red[fg_color] & 0xFF00) << 8) |
827	(info->cmap.green[fg_color] & 0xFF00) |
828	((info->cmap.blue[fg_color] & 0xFF00) >> 8);
829	bg_color =
830	((info->cmap.red[bg_color] & 0xFF00) << 8) |
831	(info->cmap.green[bg_color] & 0xFF00) |
832	((info->cmap.blue[bg_color] & 0xFF00) >> 8);
833	}
834
835	writel(val: bg_color, addr: engine + VIA_REG_CURSOR_BG);
836	writel(val: fg_color, addr: engine + VIA_REG_CURSOR_FG);
837	}
838
839	if (cursor->set & FB_CUR_SETSHAPE) {
840	struct {
841	u8 data[CURSOR_SIZE];
842	u32 bak[CURSOR_SIZE / 4];
843	} *cr_data = kzalloc(size: sizeof(*cr_data), GFP_ATOMIC);
844	int size = ((cursor->image.width + 7) >> 3) *
845	cursor->image.height;
846
847	if (!cr_data)
848	return -ENOMEM;
849
850	if (cur_size == 32) {
851	for (i = 0; i < (CURSOR_SIZE / 4); i++) {
852	cr_data->bak[i] = 0x0;
853	cr_data->bak[i + 1] = 0xFFFFFFFF;
854	i += 1;
855	}
856	} else {
857	for (i = 0; i < (CURSOR_SIZE / 4); i++) {
858	cr_data->bak[i] = 0x0;
859	cr_data->bak[i + 1] = 0x0;
860	cr_data->bak[i + 2] = 0xFFFFFFFF;
861	cr_data->bak[i + 3] = 0xFFFFFFFF;
862	i += 3;
863	}
864	}
865
866	switch (cursor->rop) {
867	case ROP_XOR:
868	for (i = 0; i < size; i++)
869	cr_data->data[i] = cursor->mask[i];
870	break;
871	case ROP_COPY:
872
873	for (i = 0; i < size; i++)
874	cr_data->data[i] = cursor->mask[i];
875	break;
876	default:
877	break;
878	}
879
880	if (cur_size == 32) {
881	for (i = 0; i < size; i++) {
882	cr_data->bak[j] = (u32) cr_data->data[i];
883	cr_data->bak[j + 1] = ~cr_data->bak[j];
884	j += 2;
885	}
886	} else {
887	for (i = 0; i < size; i++) {
888	cr_data->bak[j] = (u32) cr_data->data[i];
889	cr_data->bak[j + 1] = 0x0;
890	cr_data->bak[j + 2] = ~cr_data->bak[j];
891	cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
892	j += 4;
893	}
894	}
895
896	memcpy_toio(viafbinfo->screen_base + viapar->shared->
897	cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
898	kfree(objp: cr_data);
899	}
900
901	if (cursor->enable)
902	viafb_show_hw_cursor(info, HW_Cursor_ON);
903
904	return 0;
905	}
906
907	static int viafb_sync(struct fb_info *info)
908	{
909	if (!(info->flags & FBINFO_HWACCEL_DISABLED))
910	viafb_wait_engine_idle(info);
911	return 0;
912	}
913
914	static int get_primary_device(void)
915	{
916	int primary_device = 0;
917	/* Rule: device on iga1 path are the primary device. */
918	if (viafb_SAMM_ON) {
919	if (viafb_CRT_ON) {
920	if (viaparinfo->shared->iga1_devices & VIA_CRT) {
921	DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
922	primary_device = CRT_Device;
923	}
924	}
925	if (viafb_DVI_ON) {
926	if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
927	DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
928	viaparinfo->
929	tmds_setting_info->iga_path);
930	primary_device = DVI_Device;
931	}
932	}
933	if (viafb_LCD_ON) {
934	if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
935	DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
936	viaparinfo->
937	lvds_setting_info->iga_path);
938	primary_device = LCD_Device;
939	}
940	}
941	if (viafb_LCD2_ON) {
942	if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
943	DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
944	viaparinfo->
945	lvds_setting_info2->iga_path);
946	primary_device = LCD2_Device;
947	}
948	}
949	}
950	return primary_device;
951	}
952
953	static void retrieve_device_setting(struct viafb_ioctl_setting
954	*setting_info)
955	{
956
957	/* get device status */
958	if (viafb_CRT_ON == 1)
959	setting_info->device_status = CRT_Device;
960	if (viafb_DVI_ON == 1)
961	setting_info->device_status |= DVI_Device;
962	if (viafb_LCD_ON == 1)
963	setting_info->device_status |= LCD_Device;
964	if (viafb_LCD2_ON == 1)
965	setting_info->device_status |= LCD2_Device;
966
967	setting_info->samm_status = viafb_SAMM_ON;
968	setting_info->primary_device = get_primary_device();
969
970	setting_info->first_dev_bpp = viafb_bpp;
971	setting_info->second_dev_bpp = viafb_bpp1;
972
973	setting_info->first_dev_refresh = viafb_refresh;
974	setting_info->second_dev_refresh = viafb_refresh1;
975
976	setting_info->first_dev_hor_res = viafb_hotplug_Xres;
977	setting_info->first_dev_ver_res = viafb_hotplug_Yres;
978	setting_info->second_dev_hor_res = viafb_second_xres;
979	setting_info->second_dev_ver_res = viafb_second_yres;
980
981	/* Get lcd attributes */
982	setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
983	setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
984	setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
985	}
986
987	static int __init parse_active_dev(void)
988	{
989	viafb_CRT_ON = STATE_OFF;
990	viafb_DVI_ON = STATE_OFF;
991	viafb_LCD_ON = STATE_OFF;
992	viafb_LCD2_ON = STATE_OFF;
993	/* 1. Modify the active status of devices. */
994	/* 2. Keep the order of devices, so we can set corresponding
995	IGA path to devices in SAMM case. */
996	/* Note: The previous of active_dev is primary device,
997	and the following is secondary device. */
998	if (!viafb_active_dev) {
999	if (machine_is_olpc()) { /* LCD only */
1000	viafb_LCD_ON = STATE_ON;
1001	viafb_SAMM_ON = STATE_OFF;
1002	} else {
1003	viafb_CRT_ON = STATE_ON;
1004	viafb_SAMM_ON = STATE_OFF;
1005	}
1006	} else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1007	/* CRT+DVI */
1008	viafb_CRT_ON = STATE_ON;
1009	viafb_DVI_ON = STATE_ON;
1010	viafb_primary_dev = CRT_Device;
1011	} else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1012	/* DVI+CRT */
1013	viafb_CRT_ON = STATE_ON;
1014	viafb_DVI_ON = STATE_ON;
1015	viafb_primary_dev = DVI_Device;
1016	} else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1017	/* CRT+LCD */
1018	viafb_CRT_ON = STATE_ON;
1019	viafb_LCD_ON = STATE_ON;
1020	viafb_primary_dev = CRT_Device;
1021	} else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1022	/* LCD+CRT */
1023	viafb_CRT_ON = STATE_ON;
1024	viafb_LCD_ON = STATE_ON;
1025	viafb_primary_dev = LCD_Device;
1026	} else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1027	/* DVI+LCD */
1028	viafb_DVI_ON = STATE_ON;
1029	viafb_LCD_ON = STATE_ON;
1030	viafb_primary_dev = DVI_Device;
1031	} else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1032	/* LCD+DVI */
1033	viafb_DVI_ON = STATE_ON;
1034	viafb_LCD_ON = STATE_ON;
1035	viafb_primary_dev = LCD_Device;
1036	} else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1037	viafb_LCD_ON = STATE_ON;
1038	viafb_LCD2_ON = STATE_ON;
1039	viafb_primary_dev = LCD_Device;
1040	} else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1041	viafb_LCD_ON = STATE_ON;
1042	viafb_LCD2_ON = STATE_ON;
1043	viafb_primary_dev = LCD2_Device;
1044	} else if (!strcmp(viafb_active_dev, "CRT")) {
1045	/* CRT only */
1046	viafb_CRT_ON = STATE_ON;
1047	viafb_SAMM_ON = STATE_OFF;
1048	} else if (!strcmp(viafb_active_dev, "DVI")) {
1049	/* DVI only */
1050	viafb_DVI_ON = STATE_ON;
1051	viafb_SAMM_ON = STATE_OFF;
1052	} else if (!strcmp(viafb_active_dev, "LCD")) {
1053	/* LCD only */
1054	viafb_LCD_ON = STATE_ON;
1055	viafb_SAMM_ON = STATE_OFF;
1056	} else
1057	return -EINVAL;
1058
1059	return 0;
1060	}
1061
1062	static int parse_port(char *opt_str, int *output_interface)
1063	{
1064	if (!strncmp(opt_str, "DVP0", 4))
1065	*output_interface = INTERFACE_DVP0;
1066	else if (!strncmp(opt_str, "DVP1", 4))
1067	*output_interface = INTERFACE_DVP1;
1068	else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1069	*output_interface = INTERFACE_DFP;
1070	else if (!strncmp(opt_str, "DFP_HIGH", 8))
1071	*output_interface = INTERFACE_DFP_HIGH;
1072	else if (!strncmp(opt_str, "DFP_LOW", 7))
1073	*output_interface = INTERFACE_DFP_LOW;
1074	else
1075	*output_interface = INTERFACE_NONE;
1076	return 0;
1077	}
1078
1079	static void parse_lcd_port(void)
1080	{
1081	parse_port(opt_str: viafb_lcd_port, output_interface: &viaparinfo->chip_info->lvds_chip_info.
1082	output_interface);
1083	/*Initialize to avoid unexpected behavior */
1084	viaparinfo->chip_info->lvds_chip_info2.output_interface =
1085	INTERFACE_NONE;
1086
1087	DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1088	viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1089	output_interface);
1090	}
1091
1092	static void parse_dvi_port(void)
1093	{
1094	parse_port(opt_str: viafb_dvi_port, output_interface: &viaparinfo->chip_info->tmds_chip_info.
1095	output_interface);
1096
1097	DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1098	viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1099	output_interface);
1100	}
1101
1102	#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1103
1104	/*
1105	* The proc filesystem read/write function, a simple proc implement to
1106	* get/set the value of DPA DVP0, DVP0DataDriving, DVP0ClockDriving, DVP1,
1107	* DVP1Driving, DFPHigh, DFPLow CR96, SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1108	* CR9B, SR65, CR97, CR99
1109	*/
1110	static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1111	{
1112	u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1113	dvp0_data_dri =
1114	(viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1115	(viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1116	dvp0_clk_dri =
1117	(viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1118	(viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1119	dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1120	seq_printf(m, fmt: "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1121	return 0;
1122	}
1123
1124	static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1125	{
1126	return single_open(file, viafb_dvp0_proc_show, NULL);
1127	}
1128
1129	static ssize_t viafb_dvp0_proc_write(struct file *file,
1130	const char __user *buffer, size_t count, loff_t *pos)
1131	{
1132	char buf[20], *value, *pbuf;
1133	u8 reg_val = 0;
1134	unsigned long length, i;
1135	if (count < 1)
1136	return -EINVAL;
1137	length = count > 20 ? 20 : count;
1138	if (copy_from_user(to: &buf[0], from: buffer, n: length))
1139	return -EFAULT;
1140	buf[length - 1] = '\0'; /*Ensure end string */
1141	pbuf = &buf[0];
1142	for (i = 0; i < 3; i++) {
1143	value = strsep(&pbuf, " ");
1144	if (value != NULL) {
1145	if (kstrtou8(s: value, base: 0, res: &reg_val) < 0)
1146	return -EINVAL;
1147	DEBUG_MSG(KERN_INFO "DVP0:reg_val[%lu]=:%x\n", i,
1148	reg_val);
1149	switch (i) {
1150	case 0:
1151	viafb_write_reg_mask(CR96, VIACR,
1152	reg_val, 0x0f);
1153	break;
1154	case 1:
1155	viafb_write_reg_mask(SR2A, VIASR,
1156	reg_val << 4, BIT5);
1157	viafb_write_reg_mask(SR1B, VIASR,
1158	reg_val << 1, BIT1);
1159	break;
1160	case 2:
1161	viafb_write_reg_mask(SR2A, VIASR,
1162	reg_val << 3, BIT4);
1163	viafb_write_reg_mask(SR1E, VIASR,
1164	reg_val << 2, BIT2);
1165	break;
1166	default:
1167	break;
1168	}
1169	} else {
1170	break;
1171	}
1172	}
1173	return count;
1174	}
1175
1176	static const struct proc_ops viafb_dvp0_proc_ops = {
1177	.proc_open = viafb_dvp0_proc_open,
1178	.proc_read = seq_read,
1179	.proc_lseek = seq_lseek,
1180	.proc_release = single_release,
1181	.proc_write = viafb_dvp0_proc_write,
1182	};
1183
1184	static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1185	{
1186	u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1187	dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1188	dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1189	dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1190	seq_printf(m, fmt: "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1191	return 0;
1192	}
1193
1194	static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1195	{
1196	return single_open(file, viafb_dvp1_proc_show, NULL);
1197	}
1198
1199	static ssize_t viafb_dvp1_proc_write(struct file *file,
1200	const char __user *buffer, size_t count, loff_t *pos)
1201	{
1202	char buf[20], *value, *pbuf;
1203	u8 reg_val = 0;
1204	unsigned long length, i;
1205	if (count < 1)
1206	return -EINVAL;
1207	length = count > 20 ? 20 : count;
1208	if (copy_from_user(to: &buf[0], from: buffer, n: length))
1209	return -EFAULT;
1210	buf[length - 1] = '\0'; /*Ensure end string */
1211	pbuf = &buf[0];
1212	for (i = 0; i < 3; i++) {
1213	value = strsep(&pbuf, " ");
1214	if (value != NULL) {
1215	if (kstrtou8(s: value, base: 0, res: &reg_val) < 0)
1216	return -EINVAL;
1217	switch (i) {
1218	case 0:
1219	viafb_write_reg_mask(CR9B, VIACR,
1220	reg_val, 0x0f);
1221	break;
1222	case 1:
1223	viafb_write_reg_mask(SR65, VIASR,
1224	reg_val << 2, 0x0c);
1225	break;
1226	case 2:
1227	viafb_write_reg_mask(SR65, VIASR,
1228	reg_val, 0x03);
1229	break;
1230	default:
1231	break;
1232	}
1233	} else {
1234	break;
1235	}
1236	}
1237	return count;
1238	}
1239
1240	static const struct proc_ops viafb_dvp1_proc_ops = {
1241	.proc_open = viafb_dvp1_proc_open,
1242	.proc_read = seq_read,
1243	.proc_lseek = seq_lseek,
1244	.proc_release = single_release,
1245	.proc_write = viafb_dvp1_proc_write,
1246	};
1247
1248	static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1249	{
1250	u8 dfp_high = 0;
1251	dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1252	seq_printf(m, fmt: "%x\n", dfp_high);
1253	return 0;
1254	}
1255
1256	static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1257	{
1258	return single_open(file, viafb_dfph_proc_show, NULL);
1259	}
1260
1261	static ssize_t viafb_dfph_proc_write(struct file *file,
1262	const char __user *buffer, size_t count, loff_t *pos)
1263	{
1264	int err;
1265	u8 reg_val;
1266	err = kstrtou8_from_user(s: buffer, count, base: 0, res: &reg_val);
1267	if (err)
1268	return err;
1269
1270	viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1271	return count;
1272	}
1273
1274	static const struct proc_ops viafb_dfph_proc_ops = {
1275	.proc_open = viafb_dfph_proc_open,
1276	.proc_read = seq_read,
1277	.proc_lseek = seq_lseek,
1278	.proc_release = single_release,
1279	.proc_write = viafb_dfph_proc_write,
1280	};
1281
1282	static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1283	{
1284	u8 dfp_low = 0;
1285	dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1286	seq_printf(m, fmt: "%x\n", dfp_low);
1287	return 0;
1288	}
1289
1290	static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1291	{
1292	return single_open(file, viafb_dfpl_proc_show, NULL);
1293	}
1294
1295	static ssize_t viafb_dfpl_proc_write(struct file *file,
1296	const char __user *buffer, size_t count, loff_t *pos)
1297	{
1298	int err;
1299	u8 reg_val;
1300	err = kstrtou8_from_user(s: buffer, count, base: 0, res: &reg_val);
1301	if (err)
1302	return err;
1303
1304	viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1305	return count;
1306	}
1307
1308	static const struct proc_ops viafb_dfpl_proc_ops = {
1309	.proc_open = viafb_dfpl_proc_open,
1310	.proc_read = seq_read,
1311	.proc_lseek = seq_lseek,
1312	.proc_release = single_release,
1313	.proc_write = viafb_dfpl_proc_write,
1314	};
1315
1316	static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1317	{
1318	u8 vt1636_08 = 0, vt1636_09 = 0;
1319	switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1320	case VT1636_LVDS:
1321	vt1636_08 =
1322	viafb_gpio_i2c_read_lvds(plvds_setting_info: viaparinfo->lvds_setting_info,
1323	plvds_chip_info: &viaparinfo->chip_info->lvds_chip_info, index: 0x08) & 0x0f;
1324	vt1636_09 =
1325	viafb_gpio_i2c_read_lvds(plvds_setting_info: viaparinfo->lvds_setting_info,
1326	plvds_chip_info: &viaparinfo->chip_info->lvds_chip_info, index: 0x09) & 0x1f;
1327	seq_printf(m, fmt: "%x %x\n", vt1636_08, vt1636_09);
1328	break;
1329	default:
1330	break;
1331	}
1332	switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1333	case VT1636_LVDS:
1334	vt1636_08 =
1335	viafb_gpio_i2c_read_lvds(plvds_setting_info: viaparinfo->lvds_setting_info2,
1336	plvds_chip_info: &viaparinfo->chip_info->lvds_chip_info2, index: 0x08) & 0x0f;
1337	vt1636_09 =
1338	viafb_gpio_i2c_read_lvds(plvds_setting_info: viaparinfo->lvds_setting_info2,
1339	plvds_chip_info: &viaparinfo->chip_info->lvds_chip_info2, index: 0x09) & 0x1f;
1340	seq_printf(m, fmt: " %x %x\n", vt1636_08, vt1636_09);
1341	break;
1342	default:
1343	break;
1344	}
1345	return 0;
1346	}
1347
1348	static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1349	{
1350	return single_open(file, viafb_vt1636_proc_show, NULL);
1351	}
1352
1353	static ssize_t viafb_vt1636_proc_write(struct file *file,
1354	const char __user *buffer, size_t count, loff_t *pos)
1355	{
1356	char buf[30], *value, *pbuf;
1357	struct IODATA reg_val;
1358	unsigned long length, i;
1359	if (count < 1)
1360	return -EINVAL;
1361	length = count > 30 ? 30 : count;
1362	if (copy_from_user(to: &buf[0], from: buffer, n: length))
1363	return -EFAULT;
1364	buf[length - 1] = '\0'; /*Ensure end string */
1365	pbuf = &buf[0];
1366	switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1367	case VT1636_LVDS:
1368	for (i = 0; i < 2; i++) {
1369	value = strsep(&pbuf, " ");
1370	if (value != NULL) {
1371	if (kstrtou8(s: value, base: 0, res: &reg_val.Data) < 0)
1372	return -EINVAL;
1373	switch (i) {
1374	case 0:
1375	reg_val.Index = 0x08;
1376	reg_val.Mask = 0x0f;
1377	viafb_gpio_i2c_write_mask_lvds
1378	(plvds_setting_info: viaparinfo->lvds_setting_info,
1379	plvds_chip_info: &viaparinfo->
1380	chip_info->lvds_chip_info,
1381	io_data: reg_val);
1382	break;
1383	case 1:
1384	reg_val.Index = 0x09;
1385	reg_val.Mask = 0x1f;
1386	viafb_gpio_i2c_write_mask_lvds
1387	(plvds_setting_info: viaparinfo->lvds_setting_info,
1388	plvds_chip_info: &viaparinfo->
1389	chip_info->lvds_chip_info,
1390	io_data: reg_val);
1391	break;
1392	default:
1393	break;
1394	}
1395	} else {
1396	break;
1397	}
1398	}
1399	break;
1400	default:
1401	break;
1402	}
1403	switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1404	case VT1636_LVDS:
1405	for (i = 0; i < 2; i++) {
1406	value = strsep(&pbuf, " ");
1407	if (value != NULL) {
1408	if (kstrtou8(s: value, base: 0, res: &reg_val.Data) < 0)
1409	return -EINVAL;
1410	switch (i) {
1411	case 0:
1412	reg_val.Index = 0x08;
1413	reg_val.Mask = 0x0f;
1414	viafb_gpio_i2c_write_mask_lvds
1415	(plvds_setting_info: viaparinfo->lvds_setting_info2,
1416	plvds_chip_info: &viaparinfo->
1417	chip_info->lvds_chip_info2,
1418	io_data: reg_val);
1419	break;
1420	case 1:
1421	reg_val.Index = 0x09;
1422	reg_val.Mask = 0x1f;
1423	viafb_gpio_i2c_write_mask_lvds
1424	(plvds_setting_info: viaparinfo->lvds_setting_info2,
1425	plvds_chip_info: &viaparinfo->
1426	chip_info->lvds_chip_info2,
1427	io_data: reg_val);
1428	break;
1429	default:
1430	break;
1431	}
1432	} else {
1433	break;
1434	}
1435	}
1436	break;
1437	default:
1438	break;
1439	}
1440	return count;
1441	}
1442
1443	static const struct proc_ops viafb_vt1636_proc_ops = {
1444	.proc_open = viafb_vt1636_proc_open,
1445	.proc_read = seq_read,
1446	.proc_lseek = seq_lseek,
1447	.proc_release = single_release,
1448	.proc_write = viafb_vt1636_proc_write,
1449	};
1450
1451	#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1452
1453	static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1454	{
1455	via_odev_to_seq(m, odev: supported_odev_map[
1456	viaparinfo->shared->chip_info.gfx_chip_name]);
1457	return 0;
1458	}
1459
1460	static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1461	{
1462	char buf[64], *ptr = buf;
1463	u32 devices;
1464	bool add, sub;
1465
1466	if (count < 1 || count > 63)
1467	return -EINVAL;
1468	if (copy_from_user(to: &buf[0], from: buffer, n: count))
1469	return -EFAULT;
1470	buf[count] = '\0';
1471	add = buf[0] == '+';
1472	sub = buf[0] == '-';
1473	if (add || sub)
1474	ptr++;
1475	devices = via_parse_odev(input: ptr, end: &ptr);
1476	if (*ptr == '\n')
1477	ptr++;
1478	if (*ptr != 0)
1479	return -EINVAL;
1480	if (add)
1481	*odev |= devices;
1482	else if (sub)
1483	*odev &= ~devices;
1484	else
1485	*odev = devices;
1486	return count;
1487	}
1488
1489	static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1490	{
1491	via_odev_to_seq(m, odev: viaparinfo->shared->iga1_devices);
1492	return 0;
1493	}
1494
1495	static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1496	{
1497	return single_open(file, viafb_iga1_odev_proc_show, NULL);
1498	}
1499
1500	static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1501	const char __user *buffer, size_t count, loff_t *pos)
1502	{
1503	u32 dev_on, dev_off, dev_old, dev_new;
1504	ssize_t res;
1505
1506	dev_old = dev_new = viaparinfo->shared->iga1_devices;
1507	res = odev_update(buffer, count, odev: &dev_new);
1508	if (res != count)
1509	return res;
1510	dev_off = dev_old & ~dev_new;
1511	dev_on = dev_new & ~dev_old;
1512	viaparinfo->shared->iga1_devices = dev_new;
1513	viaparinfo->shared->iga2_devices &= ~dev_new;
1514	via_set_state(devices: dev_off, VIA_STATE_OFF);
1515	via_set_source(devices: dev_new, IGA1);
1516	via_set_state(devices: dev_on, VIA_STATE_ON);
1517	return res;
1518	}
1519
1520	static const struct proc_ops viafb_iga1_odev_proc_ops = {
1521	.proc_open = viafb_iga1_odev_proc_open,
1522	.proc_read = seq_read,
1523	.proc_lseek = seq_lseek,
1524	.proc_release = single_release,
1525	.proc_write = viafb_iga1_odev_proc_write,
1526	};
1527
1528	static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1529	{
1530	via_odev_to_seq(m, odev: viaparinfo->shared->iga2_devices);
1531	return 0;
1532	}
1533
1534	static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1535	{
1536	return single_open(file, viafb_iga2_odev_proc_show, NULL);
1537	}
1538
1539	static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1540	const char __user *buffer, size_t count, loff_t *pos)
1541	{
1542	u32 dev_on, dev_off, dev_old, dev_new;
1543	ssize_t res;
1544
1545	dev_old = dev_new = viaparinfo->shared->iga2_devices;
1546	res = odev_update(buffer, count, odev: &dev_new);
1547	if (res != count)
1548	return res;
1549	dev_off = dev_old & ~dev_new;
1550	dev_on = dev_new & ~dev_old;
1551	viaparinfo->shared->iga2_devices = dev_new;
1552	viaparinfo->shared->iga1_devices &= ~dev_new;
1553	via_set_state(devices: dev_off, VIA_STATE_OFF);
1554	via_set_source(devices: dev_new, IGA2);
1555	via_set_state(devices: dev_on, VIA_STATE_ON);
1556	return res;
1557	}
1558
1559	static const struct proc_ops viafb_iga2_odev_proc_ops = {
1560	.proc_open = viafb_iga2_odev_proc_open,
1561	.proc_read = seq_read,
1562	.proc_lseek = seq_lseek,
1563	.proc_release = single_release,
1564	.proc_write = viafb_iga2_odev_proc_write,
1565	};
1566
1567	#define IS_VT1636(lvds_chip) ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1568	static void viafb_init_proc(struct viafb_shared *shared)
1569	{
1570	struct proc_dir_entry *iga1_entry, *iga2_entry,
1571	*viafb_entry = proc_mkdir("viafb", NULL);
1572
1573	shared->proc_entry = viafb_entry;
1574	if (viafb_entry) {
1575	#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1576	proc_create(name: "dvp0", mode: 0, parent: viafb_entry, proc_ops: &viafb_dvp0_proc_ops);
1577	proc_create(name: "dvp1", mode: 0, parent: viafb_entry, proc_ops: &viafb_dvp1_proc_ops);
1578	proc_create(name: "dfph", mode: 0, parent: viafb_entry, proc_ops: &viafb_dfph_proc_ops);
1579	proc_create(name: "dfpl", mode: 0, parent: viafb_entry, proc_ops: &viafb_dfpl_proc_ops);
1580	if (IS_VT1636(shared->chip_info.lvds_chip_info)
1581	|| IS_VT1636(shared->chip_info.lvds_chip_info2))
1582	proc_create(name: "vt1636", mode: 0, parent: viafb_entry,
1583	proc_ops: &viafb_vt1636_proc_ops);
1584	#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1585
1586	proc_create_single("supported_output_devices", 0, viafb_entry,
1587	viafb_sup_odev_proc_show);
1588	iga1_entry = proc_mkdir("iga1", viafb_entry);
1589	shared->iga1_proc_entry = iga1_entry;
1590	proc_create(name: "output_devices", mode: 0, parent: iga1_entry,
1591	proc_ops: &viafb_iga1_odev_proc_ops);
1592	iga2_entry = proc_mkdir("iga2", viafb_entry);
1593	shared->iga2_proc_entry = iga2_entry;
1594	proc_create(name: "output_devices", mode: 0, parent: iga2_entry,
1595	proc_ops: &viafb_iga2_odev_proc_ops);
1596	}
1597	}
1598	static void viafb_remove_proc(struct viafb_shared *shared)
1599	{
1600	struct proc_dir_entry *viafb_entry = shared->proc_entry;
1601
1602	if (!viafb_entry)
1603	return;
1604
1605	remove_proc_entry("output_devices", shared->iga2_proc_entry);
1606	remove_proc_entry("iga2", viafb_entry);
1607	remove_proc_entry("output_devices", shared->iga1_proc_entry);
1608	remove_proc_entry("iga1", viafb_entry);
1609	remove_proc_entry("supported_output_devices", viafb_entry);
1610
1611	#ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1612	remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1613	remove_proc_entry("dvp1", viafb_entry);
1614	remove_proc_entry("dfph", viafb_entry);
1615	remove_proc_entry("dfpl", viafb_entry);
1616	if (IS_VT1636(shared->chip_info.lvds_chip_info)
1617	|| IS_VT1636(shared->chip_info.lvds_chip_info2))
1618	remove_proc_entry("vt1636", viafb_entry);
1619	#endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1620
1621	remove_proc_entry("viafb", NULL);
1622	}
1623	#undef IS_VT1636
1624
1625	static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1626	{
1627	const struct fb_videomode *mode = NULL;
1628	char *ptr;
1629
1630	if (!str) {
1631	if (devices == VIA_CRT)
1632	mode = via_aux_get_preferred_mode(
1633	bus: viaparinfo->shared->i2c_26);
1634	else if (devices == VIA_DVP1)
1635	mode = via_aux_get_preferred_mode(
1636	bus: viaparinfo->shared->i2c_31);
1637
1638	if (mode) {
1639	*xres = mode->xres;
1640	*yres = mode->yres;
1641	} else if (machine_is_olpc()) {
1642	*xres = 1200;
1643	*yres = 900;
1644	} else {
1645	*xres = 640;
1646	*yres = 480;
1647	}
1648	return 0;
1649	}
1650
1651	*xres = simple_strtoul(str, &ptr, 10);
1652	if (ptr[0] != 'x')
1653	return -EINVAL;
1654
1655	*yres = simple_strtoul(&ptr[1], &ptr, 10);
1656	if (ptr[0])
1657	return -EINVAL;
1658
1659	return 0;
1660	}
1661
1662
1663	#ifdef CONFIG_PM
1664	static int viafb_suspend(void *unused)
1665	{
1666	console_lock();
1667	fb_set_suspend(info: viafbinfo, state: 1);
1668	viafb_sync(info: viafbinfo);
1669	console_unlock();
1670
1671	return 0;
1672	}
1673
1674	static int viafb_resume(void *unused)
1675	{
1676	console_lock();
1677	if (viaparinfo->shared->vdev->engine_mmio)
1678	viafb_reset_engine(viapar: viaparinfo);
1679	viafb_set_par(info: viafbinfo);
1680	if (viafb_dual_fb)
1681	viafb_set_par(info: viafbinfo1);
1682	fb_set_suspend(info: viafbinfo, state: 0);
1683
1684	console_unlock();
1685	return 0;
1686	}
1687
1688	static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1689	.suspend = viafb_suspend,
1690	.resume = viafb_resume
1691	};
1692
1693	#endif
1694
1695	static void i2c_bus_probe(struct viafb_shared *shared)
1696	{
1697	/* should be always CRT */
1698	printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1699	shared->i2c_26 = via_aux_probe(adap: viafb_find_i2c_adapter(which: VIA_PORT_26));
1700
1701	/* seems to be usually DVP1 */
1702	printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1703	shared->i2c_31 = via_aux_probe(adap: viafb_find_i2c_adapter(which: VIA_PORT_31));
1704
1705	/* FIXME: what is this? */
1706	if (!machine_is_olpc()) {
1707	printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1708	shared->i2c_2C = via_aux_probe(adap: viafb_find_i2c_adapter(which: VIA_PORT_2C));
1709	}
1710
1711	printk(KERN_INFO "viafb: Finished I2C bus probing");
1712	}
1713
1714	static void i2c_bus_free(struct viafb_shared *shared)
1715	{
1716	via_aux_free(bus: shared->i2c_26);
1717	via_aux_free(bus: shared->i2c_31);
1718	via_aux_free(bus: shared->i2c_2C);
1719	}
1720
1721	int via_fb_pci_probe(struct viafb_dev *vdev)
1722	{
1723	u32 default_xres, default_yres;
1724	struct fb_var_screeninfo default_var;
1725	int rc;
1726	u32 viafb_par_length;
1727
1728	DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1729	memset(&default_var, 0, sizeof(default_var));
1730	viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1731
1732	/* Allocate fb_info and ***_par here, also including some other needed
1733	* variables
1734	*/
1735	viafbinfo = framebuffer_alloc(size: viafb_par_length +
1736	ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1737	dev: &vdev->pdev->dev);
1738	if (!viafbinfo)
1739	return -ENOMEM;
1740
1741	viaparinfo = (struct viafb_par *)viafbinfo->par;
1742	viaparinfo->shared = viafbinfo->par + viafb_par_length;
1743	viaparinfo->shared->vdev = vdev;
1744	viaparinfo->vram_addr = 0;
1745	viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1746	viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1747	viaparinfo->lvds_setting_info2 =
1748	&viaparinfo->shared->lvds_setting_info2;
1749	viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1750
1751	i2c_bus_probe(shared: viaparinfo->shared);
1752	if (viafb_dual_fb)
1753	viafb_SAMM_ON = 1;
1754	parse_lcd_port();
1755	parse_dvi_port();
1756
1757	viafb_init_chip_info(chip_type: vdev->chip_type);
1758	/*
1759	* The framebuffer will have been successfully mapped by
1760	* the core (or we'd not be here), but we still need to
1761	* set up our own accounting.
1762	*/
1763	viaparinfo->fbmem = vdev->fbmem_start;
1764	viaparinfo->memsize = vdev->fbmem_len;
1765	viaparinfo->fbmem_free = viaparinfo->memsize;
1766	viaparinfo->fbmem_used = 0;
1767	viafbinfo->screen_base = vdev->fbmem;
1768
1769	viafbinfo->fix.mmio_start = vdev->engine_start;
1770	viafbinfo->fix.mmio_len = vdev->engine_len;
1771	viafbinfo->node = 0;
1772	viafbinfo->fbops = &viafb_ops;
1773	viafbinfo->flags = FBINFO_HWACCEL_YPAN;
1774
1775	viafbinfo->pseudo_palette = pseudo_pal;
1776	if (viafb_accel && !viafb_setup_engine(info: viafbinfo)) {
1777	viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1778	FBINFO_HWACCEL_FILLRECT | FBINFO_HWACCEL_IMAGEBLIT;
1779	default_var.accel_flags = FB_ACCELF_TEXT;
1780	} else {
1781	viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1782	default_var.accel_flags = 0;
1783	}
1784
1785	if (viafb_second_size && (viafb_second_size < 8)) {
1786	viafb_second_offset = viaparinfo->fbmem_free -
1787	viafb_second_size * 1024 * 1024;
1788	} else {
1789	viafb_second_size = 8;
1790	viafb_second_offset = viaparinfo->fbmem_free -
1791	viafb_second_size * 1024 * 1024;
1792	}
1793
1794	parse_mode(str: viafb_mode, devices: viaparinfo->shared->iga1_devices,
1795	xres: &default_xres, yres: &default_yres);
1796	if (viafb_SAMM_ON == 1)
1797	parse_mode(str: viafb_mode1, devices: viaparinfo->shared->iga2_devices,
1798	xres: &viafb_second_xres, yres: &viafb_second_yres);
1799
1800	default_var.xres = default_xres;
1801	default_var.yres = default_yres;
1802	default_var.xres_virtual = default_xres;
1803	default_var.yres_virtual = default_yres;
1804	default_var.bits_per_pixel = viafb_bpp;
1805	viafb_fill_var_timing_info(var: &default_var, mode: viafb_get_best_mode(
1806	hres: default_var.xres, vres: default_var.yres, refresh: viafb_refresh));
1807	viafb_setup_fixinfo(fix: &viafbinfo->fix, viaparinfo);
1808	viafbinfo->var = default_var;
1809
1810	if (viafb_dual_fb) {
1811	viafbinfo1 = framebuffer_alloc(size: viafb_par_length,
1812	dev: &vdev->pdev->dev);
1813	if (!viafbinfo1) {
1814	rc = -ENOMEM;
1815	goto out_fb_release;
1816	}
1817	viaparinfo1 = viafbinfo1->par;
1818	memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1819	viaparinfo1->vram_addr = viafb_second_offset;
1820	viaparinfo1->memsize = viaparinfo->memsize -
1821	viafb_second_offset;
1822	viaparinfo->memsize = viafb_second_offset;
1823	viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1824
1825	viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1826	viaparinfo1->fbmem_free = viaparinfo1->memsize -
1827	viaparinfo1->fbmem_used;
1828	viaparinfo->fbmem_free = viaparinfo->memsize;
1829	viaparinfo->fbmem_used = 0;
1830
1831	viaparinfo->iga_path = IGA1;
1832	viaparinfo1->iga_path = IGA2;
1833	memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1834	viafbinfo1->par = viaparinfo1;
1835	viafbinfo1->screen_base = viafbinfo->screen_base +
1836	viafb_second_offset;
1837
1838	default_var.xres = viafb_second_xres;
1839	default_var.yres = viafb_second_yres;
1840	default_var.xres_virtual = viafb_second_xres;
1841	default_var.yres_virtual = viafb_second_yres;
1842	default_var.bits_per_pixel = viafb_bpp1;
1843	viafb_fill_var_timing_info(var: &default_var, mode: viafb_get_best_mode(
1844	hres: default_var.xres, vres: default_var.yres, refresh: viafb_refresh1));
1845
1846	viafb_setup_fixinfo(fix: &viafbinfo1->fix, viaparinfo: viaparinfo1);
1847	viafb_check_var(var: &default_var, info: viafbinfo1);
1848	viafbinfo1->var = default_var;
1849	viafb_update_fix(info: viafbinfo1);
1850	viaparinfo1->depth = fb_get_color_depth(var: &viafbinfo1->var,
1851	fix: &viafbinfo1->fix);
1852	}
1853
1854	viafb_check_var(var: &viafbinfo->var, info: viafbinfo);
1855	viafb_update_fix(info: viafbinfo);
1856	viaparinfo->depth = fb_get_color_depth(var: &viafbinfo->var,
1857	fix: &viafbinfo->fix);
1858	default_var.activate = FB_ACTIVATE_NOW;
1859	rc = fb_alloc_cmap(cmap: &viafbinfo->cmap, len: 256, transp: 0);
1860	if (rc)
1861	goto out_fb1_release;
1862
1863	if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1864	&& (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1865	rc = register_framebuffer(fb_info: viafbinfo1);
1866	if (rc)
1867	goto out_dealloc_cmap;
1868	}
1869	rc = register_framebuffer(fb_info: viafbinfo);
1870	if (rc)
1871	goto out_fb1_unreg_lcd_cle266;
1872
1873	if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1874	|| (viaparinfo->chip_info->gfx_chip_name !=
1875	UNICHROME_CLE266))) {
1876	rc = register_framebuffer(fb_info: viafbinfo1);
1877	if (rc)
1878	goto out_fb_unreg;
1879	}
1880	DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1881	viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1882	default_var.yres, default_var.bits_per_pixel);
1883
1884	viafb_init_proc(shared: viaparinfo->shared);
1885	viafb_init_dac(IGA2);
1886
1887	#ifdef CONFIG_PM
1888	viafb_pm_register(hooks: &viafb_fb_pm_hooks);
1889	#endif
1890	return 0;
1891
1892	out_fb_unreg:
1893	unregister_framebuffer(fb_info: viafbinfo);
1894	out_fb1_unreg_lcd_cle266:
1895	if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1896	&& (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1897	unregister_framebuffer(fb_info: viafbinfo1);
1898	out_dealloc_cmap:
1899	fb_dealloc_cmap(cmap: &viafbinfo->cmap);
1900	out_fb1_release:
1901	framebuffer_release(info: viafbinfo1);
1902	out_fb_release:
1903	i2c_bus_free(shared: viaparinfo->shared);
1904	framebuffer_release(info: viafbinfo);
1905	return rc;
1906	}
1907
1908	void via_fb_pci_remove(struct pci_dev *pdev)
1909	{
1910	DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1911	fb_dealloc_cmap(cmap: &viafbinfo->cmap);
1912	unregister_framebuffer(fb_info: viafbinfo);
1913	if (viafb_dual_fb)
1914	unregister_framebuffer(fb_info: viafbinfo1);
1915	viafb_remove_proc(shared: viaparinfo->shared);
1916	i2c_bus_free(shared: viaparinfo->shared);
1917	framebuffer_release(info: viafbinfo);
1918	if (viafb_dual_fb)
1919	framebuffer_release(info: viafbinfo1);
1920	}
1921
1922	#ifndef MODULE
1923	static int __init viafb_setup(void)
1924	{
1925	char *this_opt;
1926	char *options;
1927
1928	DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1929
1930	if (fb_get_options(name: "viafb", option: &options))
1931	return -ENODEV;
1932
1933	if (!options || !*options)
1934	return 0;
1935
1936	while ((this_opt = strsep(&options, ",")) != NULL) {
1937	if (!*this_opt)
1938	continue;
1939
1940	if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1941	viafb_mode1 = kstrdup(s: this_opt + 12, GFP_KERNEL);
1942	if (!viafb_mode1)
1943	return -ENOMEM;
1944	} else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1945	viafb_mode = kstrdup(s: this_opt + 11, GFP_KERNEL);
1946	if (!viafb_mode)
1947	return -ENOMEM;
1948	} else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1949	if (kstrtouint(s: this_opt + 11, base: 0, res: &viafb_bpp1) < 0)
1950	return -EINVAL;
1951	} else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1952	if (kstrtouint(s: this_opt + 10, base: 0, res: &viafb_bpp) < 0)
1953	return -EINVAL;
1954	} else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1955	if (kstrtoint(s: this_opt + 15, base: 0, res: &viafb_refresh1) < 0)
1956	return -EINVAL;
1957	} else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1958	if (kstrtoint(s: this_opt + 14, base: 0, res: &viafb_refresh) < 0)
1959	return -EINVAL;
1960	} else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1961	if (kstrtoint(s: this_opt + 21, base: 0,
1962	res: &viafb_lcd_dsp_method) < 0)
1963	return -EINVAL;
1964	} else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1965	if (kstrtoint(s: this_opt + 19, base: 0,
1966	res: &viafb_lcd_panel_id) < 0)
1967	return -EINVAL;
1968	} else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1969	if (kstrtoint(s: this_opt + 12, base: 0, res: &viafb_accel) < 0)
1970	return -EINVAL;
1971	} else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1972	if (kstrtoint(s: this_opt + 14, base: 0, res: &viafb_SAMM_ON) < 0)
1973	return -EINVAL;
1974	} else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1975	viafb_active_dev = kstrdup(s: this_opt + 17, GFP_KERNEL);
1976	if (!viafb_active_dev)
1977	return -ENOMEM;
1978	} else if (!strncmp(this_opt,
1979	"viafb_display_hardware_layout=", 30)) {
1980	if (kstrtoint(s: this_opt + 30, base: 0,
1981	res: &viafb_display_hardware_layout) < 0)
1982	return -EINVAL;
1983	} else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
1984	if (kstrtoint(s: this_opt + 18, base: 0, res: &viafb_second_size) < 0)
1985	return -EINVAL;
1986	} else if (!strncmp(this_opt,
1987	"viafb_platform_epia_dvi=", 24)) {
1988	if (kstrtoint(s: this_opt + 24, base: 0,
1989	res: &viafb_platform_epia_dvi) < 0)
1990	return -EINVAL;
1991	} else if (!strncmp(this_opt,
1992	"viafb_device_lcd_dualedge=", 26)) {
1993	if (kstrtoint(s: this_opt + 26, base: 0,
1994	res: &viafb_device_lcd_dualedge) < 0)
1995	return -EINVAL;
1996	} else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
1997	if (kstrtoint(s: this_opt + 16, base: 0, res: &viafb_bus_width) < 0)
1998	return -EINVAL;
1999	} else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2000	if (kstrtoint(s: this_opt + 15, base: 0, res: &viafb_lcd_mode) < 0)
2001	return -EINVAL;
2002	} else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2003	viafb_lcd_port = kstrdup(s: this_opt + 15, GFP_KERNEL);
2004	if (!viafb_lcd_port)
2005	return -ENOMEM;
2006	} else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2007	viafb_dvi_port = kstrdup(s: this_opt + 15, GFP_KERNEL);
2008	if (!viafb_dvi_port)
2009	return -ENOMEM;
2010	}
2011	}
2012	return 0;
2013	}
2014	#endif
2015
2016	/*
2017	* These are called out of via-core for now.
2018	*/
2019	int __init viafb_init(void)
2020	{
2021	u32 dummy_x, dummy_y;
2022	int r = 0;
2023
2024	if (machine_is_olpc())
2025	/* Apply XO-1.5-specific configuration. */
2026	viafb_lcd_panel_id = 23;
2027
2028	#ifndef MODULE
2029	r = viafb_setup();
2030	if (r < 0)
2031	return r;
2032	#endif
2033	if (parse_mode(str: viafb_mode, devices: 0, xres: &dummy_x, yres: &dummy_y)
2034	|| !viafb_get_best_mode(hres: dummy_x, vres: dummy_y, refresh: viafb_refresh)
2035	|| parse_mode(str: viafb_mode1, devices: 0, xres: &dummy_x, yres: &dummy_y)
2036	|| !viafb_get_best_mode(hres: dummy_x, vres: dummy_y, refresh: viafb_refresh1)
2037	|| viafb_bpp < 0 || viafb_bpp > 32
2038	|| viafb_bpp1 < 0 || viafb_bpp1 > 32
2039	|| parse_active_dev())
2040	return -EINVAL;
2041
2042	printk(KERN_INFO
2043	"VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2044	VERSION_MAJOR, VERSION_MINOR);
2045	return r;
2046	}
2047
2048	void __exit viafb_exit(void)
2049	{
2050	DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2051	}
2052
2053	static struct fb_ops viafb_ops = {
2054	.owner = THIS_MODULE,
2055	.fb_open = viafb_open,
2056	.fb_release = viafb_release,
2057	__FB_DEFAULT_IOMEM_OPS_RDWR,
2058	.fb_check_var = viafb_check_var,
2059	.fb_set_par = viafb_set_par,
2060	.fb_setcolreg = viafb_setcolreg,
2061	.fb_pan_display = viafb_pan_display,
2062	.fb_blank = viafb_blank,
2063	.fb_fillrect = viafb_fillrect,
2064	.fb_copyarea = viafb_copyarea,
2065	.fb_imageblit = viafb_imageblit,
2066	.fb_cursor = viafb_cursor,
2067	.fb_ioctl = viafb_ioctl,
2068	.fb_sync = viafb_sync,
2069	__FB_DEFAULT_IOMEM_OPS_MMAP,
2070	};
2071
2072
2073	#ifdef MODULE
2074	module_param(viafb_mode, charp, S_IRUSR);
2075	MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2076
2077	module_param(viafb_mode1, charp, S_IRUSR);
2078	MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2079
2080	module_param(viafb_bpp, int, S_IRUSR);
2081	MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2082
2083	module_param(viafb_bpp1, int, S_IRUSR);
2084	MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2085
2086	module_param(viafb_refresh, int, S_IRUSR);
2087	MODULE_PARM_DESC(viafb_refresh,
2088	"Set CRT viafb_refresh rate (default = 60)");
2089
2090	module_param(viafb_refresh1, int, S_IRUSR);
2091	MODULE_PARM_DESC(viafb_refresh1,
2092	"Set CRT refresh rate (default = 60)");
2093
2094	module_param(viafb_lcd_panel_id, int, S_IRUSR);
2095	MODULE_PARM_DESC(viafb_lcd_panel_id,
2096	"Set Flat Panel type(Default=1024x768)");
2097
2098	module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2099	MODULE_PARM_DESC(viafb_lcd_dsp_method,
2100	"Set Flat Panel display scaling method.(Default=Expansion)");
2101
2102	module_param(viafb_SAMM_ON, int, S_IRUSR);
2103	MODULE_PARM_DESC(viafb_SAMM_ON,
2104	"Turn on/off flag of SAMM(Default=OFF)");
2105
2106	module_param(viafb_accel, int, S_IRUSR);
2107	MODULE_PARM_DESC(viafb_accel,
2108	"Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2109
2110	module_param(viafb_active_dev, charp, S_IRUSR);
2111	MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2112
2113	module_param(viafb_display_hardware_layout, int, S_IRUSR);
2114	MODULE_PARM_DESC(viafb_display_hardware_layout,
2115	"Display Hardware Layout (LCD Only, DVI Only...,etc)");
2116
2117	module_param(viafb_second_size, int, S_IRUSR);
2118	MODULE_PARM_DESC(viafb_second_size,
2119	"Set secondary device memory size");
2120
2121	module_param(viafb_dual_fb, int, S_IRUSR);
2122	MODULE_PARM_DESC(viafb_dual_fb,
2123	"Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2124
2125	module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2126	MODULE_PARM_DESC(viafb_platform_epia_dvi,
2127	"Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2128
2129	module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2130	MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2131	"Turn on/off flag of dual edge panel.(Default = OFF)");
2132
2133	module_param(viafb_bus_width, int, S_IRUSR);
2134	MODULE_PARM_DESC(viafb_bus_width,
2135	"Set bus width of panel.(Default = 12)");
2136
2137	module_param(viafb_lcd_mode, int, S_IRUSR);
2138	MODULE_PARM_DESC(viafb_lcd_mode,
2139	"Set Flat Panel mode(Default=OPENLDI)");
2140
2141	module_param(viafb_lcd_port, charp, S_IRUSR);
2142	MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2143
2144	module_param(viafb_dvi_port, charp, S_IRUSR);
2145	MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2146
2147	MODULE_LICENSE("GPL");
2148	#endif
2149