Magellan Linux

Annotation of /trunk/kernel26-magellan/patches-2.6.35-r3/0150-2.6.35-fbcondecor-0.9.6.patch

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Revision 1136 - (hide annotations) (download)
Sat Sep 18 11:01:49 2010 UTC (13 years, 7 months ago) by niro
File size: 62763 byte(s)
-2.6.35-magellan-r3; added patch to fix CVE-2010-3301
1 niro 1136 diff --git a/Documentation/fb/00-INDEX b/Documentation/fb/00-INDEX
2     index a618fd9..6eb4dc4 100644
3     --- a/Documentation/fb/00-INDEX
4     +++ b/Documentation/fb/00-INDEX
5     @@ -15,6 +15,8 @@ deferred_io.txt
6     - an introduction to deferred IO.
7     fbcon.txt
8     - intro to and usage guide for the framebuffer console (fbcon).
9     +fbcondecor.txt
10     + - info on the Framebuffer Console Decoration
11     framebuffer.txt
12     - introduction to frame buffer devices.
13     imacfb.txt
14     diff --git a/Documentation/fb/fbcondecor.txt b/Documentation/fb/fbcondecor.txt
15     new file mode 100644
16     index 0000000..15889f3
17     --- /dev/null
18     +++ b/Documentation/fb/fbcondecor.txt
19     @@ -0,0 +1,207 @@
20     +What is it?
21     +-----------
22     +
23     +The framebuffer decorations are a kernel feature which allows displaying a
24     +background picture on selected consoles.
25     +
26     +What do I need to get it to work?
27     +---------------------------------
28     +
29     +To get fbcondecor up-and-running you will have to:
30     + 1) get a copy of splashutils [1] or a similar program
31     + 2) get some fbcondecor themes
32     + 3) build the kernel helper program
33     + 4) build your kernel with the FB_CON_DECOR option enabled.
34     +
35     +To get fbcondecor operational right after fbcon initialization is finished, you
36     +will have to include a theme and the kernel helper into your initramfs image.
37     +Please refer to splashutils documentation for instructions on how to do that.
38     +
39     +[1] The splashutils package can be downloaded from:
40     + http://dev.gentoo.org/~spock/projects/splashutils/
41     +
42     +The userspace helper
43     +--------------------
44     +
45     +The userspace fbcondecor helper (by default: /sbin/fbcondecor_helper) is called by the
46     +kernel whenever an important event occurs and the kernel needs some kind of
47     +job to be carried out. Important events include console switches and video
48     +mode switches (the kernel requests background images and configuration
49     +parameters for the current console). The fbcondecor helper must be accessible at
50     +all times. If it's not, fbcondecor will be switched off automatically.
51     +
52     +It's possible to set path to the fbcondecor helper by writing it to
53     +/proc/sys/kernel/fbcondecor.
54     +
55     +*****************************************************************************
56     +
57     +The information below is mostly technical stuff. There's probably no need to
58     +read it unless you plan to develop a userspace helper.
59     +
60     +The fbcondecor protocol
61     +-----------------------
62     +
63     +The fbcondecor protocol defines a communication interface between the kernel and
64     +the userspace fbcondecor helper.
65     +
66     +The kernel side is responsible for:
67     +
68     + * rendering console text, using an image as a background (instead of a
69     + standard solid color fbcon uses),
70     + * accepting commands from the user via ioctls on the fbcondecor device,
71     + * calling the userspace helper to set things up as soon as the fb subsystem
72     + is initialized.
73     +
74     +The userspace helper is responsible for everything else, including parsing
75     +configuration files, decompressing the image files whenever the kernel needs
76     +it, and communicating with the kernel if necessary.
77     +
78     +The fbcondecor protocol specifies how communication is done in both ways:
79     +kernel->userspace and userspace->helper.
80     +
81     +Kernel -> Userspace
82     +-------------------
83     +
84     +The kernel communicates with the userspace helper by calling it and specifying
85     +the task to be done in a series of arguments.
86     +
87     +The arguments follow the pattern:
88     +<fbcondecor protocol version> <command> <parameters>
89     +
90     +All commands defined in fbcondecor protocol v2 have the following parameters:
91     + virtual console
92     + framebuffer number
93     + theme
94     +
95     +Fbcondecor protocol v1 specified an additional 'fbcondecor mode' after the
96     +framebuffer number. Fbcondecor protocol v1 is deprecated and should not be used.
97     +
98     +Fbcondecor protocol v2 specifies the following commands:
99     +
100     +getpic
101     +------
102     + The kernel issues this command to request image data. It's up to the
103     + userspace helper to find a background image appropriate for the specified
104     + theme and the current resolution. The userspace helper should respond by
105     + issuing the FBIOCONDECOR_SETPIC ioctl.
106     +
107     +init
108     +----
109     + The kernel issues this command after the fbcondecor device is created and
110     + the fbcondecor interface is initialized. Upon receiving 'init', the userspace
111     + helper should parse the kernel command line (/proc/cmdline) or otherwise
112     + decide whether fbcondecor is to be activated.
113     +
114     + To activate fbcondecor on the first console the helper should issue the
115     + FBIOCONDECOR_SETCFG, FBIOCONDECOR_SETPIC and FBIOCONDECOR_SETSTATE commands,
116     + in the above-mentioned order.
117     +
118     + When the userspace helper is called in an early phase of the boot process
119     + (right after the initialization of fbcon), no filesystems will be mounted.
120     + The helper program should mount sysfs and then create the appropriate
121     + framebuffer, fbcondecor and tty0 devices (if they don't already exist) to get
122     + current display settings and to be able to communicate with the kernel side.
123     + It should probably also mount the procfs to be able to parse the kernel
124     + command line parameters.
125     +
126     + Note that the console sem is not held when the kernel calls fbcondecor_helper
127     + with the 'init' command. The fbcondecor helper should perform all ioctls with
128     + origin set to FBCON_DECOR_IO_ORIG_USER.
129     +
130     +modechange
131     +----------
132     + The kernel issues this command on a mode change. The helper's response should
133     + be similar to the response to the 'init' command. Note that this time the
134     + console sem is held and all ioctls must be performed with origin set to
135     + FBCON_DECOR_IO_ORIG_KERNEL.
136     +
137     +
138     +Userspace -> Kernel
139     +-------------------
140     +
141     +Userspace programs can communicate with fbcondecor via ioctls on the
142     +fbcondecor device. These ioctls are to be used by both the userspace helper
143     +(called only by the kernel) and userspace configuration tools (run by the users).
144     +
145     +The fbcondecor helper should set the origin field to FBCON_DECOR_IO_ORIG_KERNEL
146     +when doing the appropriate ioctls. All userspace configuration tools should
147     +use FBCON_DECOR_IO_ORIG_USER. Failure to set the appropriate value in the origin
148     +field when performing ioctls from the kernel helper will most likely result
149     +in a console deadlock.
150     +
151     +FBCON_DECOR_IO_ORIG_KERNEL instructs fbcondecor not to try to acquire the console
152     +semaphore. Not surprisingly, FBCON_DECOR_IO_ORIG_USER instructs it to acquire
153     +the console sem.
154     +
155     +The framebuffer console decoration provides the following ioctls (all defined in
156     +linux/fb.h):
157     +
158     +FBIOCONDECOR_SETPIC
159     +description: loads a background picture for a virtual console
160     +argument: struct fbcon_decor_iowrapper*; data: struct fb_image*
161     +notes:
162     +If called for consoles other than the current foreground one, the picture data
163     +will be ignored.
164     +
165     +If the current virtual console is running in a 8-bpp mode, the cmap substruct
166     +of fb_image has to be filled appropriately: start should be set to 16 (first
167     +16 colors are reserved for fbcon), len to a value <= 240 and red, green and
168     +blue should point to valid cmap data. The transp field is ingored. The fields
169     +dx, dy, bg_color, fg_color in fb_image are ignored as well.
170     +
171     +FBIOCONDECOR_SETCFG
172     +description: sets the fbcondecor config for a virtual console
173     +argument: struct fbcon_decor_iowrapper*; data: struct vc_decor*
174     +notes: The structure has to be filled with valid data.
175     +
176     +FBIOCONDECOR_GETCFG
177     +description: gets the fbcondecor config for a virtual console
178     +argument: struct fbcon_decor_iowrapper*; data: struct vc_decor*
179     +
180     +FBIOCONDECOR_SETSTATE
181     +description: sets the fbcondecor state for a virtual console
182     +argument: struct fbcon_decor_iowrapper*; data: unsigned int*
183     + values: 0 = disabled, 1 = enabled.
184     +
185     +FBIOCONDECOR_GETSTATE
186     +description: gets the fbcondecor state for a virtual console
187     +argument: struct fbcon_decor_iowrapper*; data: unsigned int*
188     + values: as in FBIOCONDECOR_SETSTATE
189     +
190     +Info on used structures:
191     +
192     +Definition of struct vc_decor can be found in linux/console_decor.h. It's
193     +heavily commented. Note that the 'theme' field should point to a string
194     +no longer than FBCON_DECOR_THEME_LEN. When FBIOCONDECOR_GETCFG call is
195     +performed, the theme field should point to a char buffer of length
196     +FBCON_DECOR_THEME_LEN.
197     +
198     +Definition of struct fbcon_decor_iowrapper can be found in linux/fb.h.
199     +The fields in this struct have the following meaning:
200     +
201     +vc:
202     +Virtual console number.
203     +
204     +origin:
205     +Specifies if the ioctl is performed as a response to a kernel request. The
206     +fbcondecor helper should set this field to FBCON_DECOR_IO_ORIG_KERNEL, userspace
207     +programs should set it to FBCON_DECOR_IO_ORIG_USER. This field is necessary to
208     +avoid console semaphore deadlocks.
209     +
210     +data:
211     +Pointer to a data structure appropriate for the performed ioctl. Type of
212     +the data struct is specified in the ioctls description.
213     +
214     +*****************************************************************************
215     +
216     +Credit
217     +------
218     +
219     +Original 'bootsplash' project & implementation by:
220     + Volker Poplawski <volker@poplawski.de>, Stefan Reinauer <stepan@suse.de>,
221     + Steffen Winterfeldt <snwint@suse.de>, Michael Schroeder <mls@suse.de>,
222     + Ken Wimer <wimer@suse.de>.
223     +
224     +Fbcondecor, fbcondecor protocol design, current implementation & docs by:
225     + Michal Januszewski <spock@gentoo.org>
226     +
227     diff --git a/drivers/Makefile b/drivers/Makefile
228     index 91874e0..dc7663b 100644
229     --- a/drivers/Makefile
230     +++ b/drivers/Makefile
231     @@ -9,6 +9,9 @@ obj-y += gpio/
232     obj-$(CONFIG_PCI) += pci/
233     obj-$(CONFIG_PARISC) += parisc/
234     obj-$(CONFIG_RAPIDIO) += rapidio/
235     +# char/ comes before serial/ etc so that the VT console is the boot-time
236     +# default.
237     +obj-y += char/
238     obj-y += video/
239     obj-y += idle/
240     obj-$(CONFIG_ACPI) += acpi/
241     @@ -24,10 +27,6 @@ obj-$(CONFIG_XEN) += xen/
242     # regulators early, since some subsystems rely on them to initialize
243     obj-$(CONFIG_REGULATOR) += regulator/
244    
245     -# char/ comes before serial/ etc so that the VT console is the boot-time
246     -# default.
247     -obj-y += char/
248     -
249     # gpu/ comes after char for AGP vs DRM startup
250     obj-y += gpu/
251    
252     diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
253     index 3d94a14..54e113d 100644
254     --- a/drivers/video/Kconfig
255     +++ b/drivers/video/Kconfig
256     @@ -1195,7 +1195,6 @@ config FB_MATROX
257     select FB_CFB_FILLRECT
258     select FB_CFB_COPYAREA
259     select FB_CFB_IMAGEBLIT
260     - select FB_TILEBLITTING
261     select FB_MACMODES if PPC_PMAC
262     ---help---
263     Say Y here if you have a Matrox Millennium, Matrox Millennium II,
264     diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
265     index 8e8f18d..86875c3 100644
266     --- a/drivers/video/console/Kconfig
267     +++ b/drivers/video/console/Kconfig
268     @@ -122,6 +122,19 @@ config FRAMEBUFFER_CONSOLE_ROTATION
269     such that other users of the framebuffer will remain normally
270     oriented.
271    
272     +config FB_CON_DECOR
273     + bool "Support for the Framebuffer Console Decorations"
274     + depends on FRAMEBUFFER_CONSOLE=y && !FB_TILEBLITTING
275     + default n
276     + ---help---
277     + This option enables support for framebuffer console decorations which
278     + makes it possible to display images in the background of the system
279     + consoles. Note that userspace utilities are necessary in order to take
280     + advantage of these features. Refer to Documentation/fb/fbcondecor.txt
281     + for more information.
282     +
283     + If unsure, say N.
284     +
285     config STI_CONSOLE
286     bool "STI text console"
287     depends on PARISC
288     diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile
289     index a862e91..86bfcff 100644
290     --- a/drivers/video/console/Makefile
291     +++ b/drivers/video/console/Makefile
292     @@ -34,6 +34,7 @@ obj-$(CONFIG_FRAMEBUFFER_CONSOLE) += fbcon_rotate.o fbcon_cw.o fbcon_ud.o \
293     fbcon_ccw.o
294     endif
295    
296     +obj-$(CONFIG_FB_CON_DECOR) += fbcondecor.o cfbcondecor.o
297     obj-$(CONFIG_FB_STI) += sticore.o font.o
298    
299     ifeq ($(CONFIG_USB_SISUSBVGA_CON),y)
300     diff --git a/drivers/video/console/bitblit.c b/drivers/video/console/bitblit.c
301     index af88651..4cd893d 100644
302     --- a/drivers/video/console/bitblit.c
303     +++ b/drivers/video/console/bitblit.c
304     @@ -18,6 +18,7 @@
305     #include <linux/console.h>
306     #include <asm/types.h>
307     #include "fbcon.h"
308     +#include "fbcondecor.h"
309    
310     /*
311     * Accelerated handlers.
312     @@ -55,6 +56,13 @@ static void bit_bmove(struct vc_data *vc, struct fb_info *info, int sy,
313     area.height = height * vc->vc_font.height;
314     area.width = width * vc->vc_font.width;
315    
316     + if (fbcon_decor_active(info, vc)) {
317     + area.sx += vc->vc_decor.tx;
318     + area.sy += vc->vc_decor.ty;
319     + area.dx += vc->vc_decor.tx;
320     + area.dy += vc->vc_decor.ty;
321     + }
322     +
323     info->fbops->fb_copyarea(info, &area);
324     }
325    
326     @@ -380,11 +388,15 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
327     cursor.image.depth = 1;
328     cursor.rop = ROP_XOR;
329    
330     - if (info->fbops->fb_cursor)
331     - err = info->fbops->fb_cursor(info, &cursor);
332     + if (fbcon_decor_active(info, vc)) {
333     + fbcon_decor_cursor(info, &cursor);
334     + } else {
335     + if (info->fbops->fb_cursor)
336     + err = info->fbops->fb_cursor(info, &cursor);
337    
338     - if (err)
339     - soft_cursor(info, &cursor);
340     + if (err)
341     + soft_cursor(info, &cursor);
342     + }
343    
344     ops->cursor_reset = 0;
345     }
346     diff --git a/drivers/video/console/cfbcondecor.c b/drivers/video/console/cfbcondecor.c
347     new file mode 100644
348     index 0000000..18a5452
349     --- /dev/null
350     +++ b/drivers/video/console/cfbcondecor.c
351     @@ -0,0 +1,472 @@
352     +/*
353     + * linux/drivers/video/cfbcon_decor.c -- Framebuffer decor render functions
354     + *
355     + * Copyright (C) 2004 Michal Januszewski <spock@gentoo.org>
356     + *
357     + * Code based upon "Bootdecor" (C) 2001-2003
358     + * Volker Poplawski <volker@poplawski.de>,
359     + * Stefan Reinauer <stepan@suse.de>,
360     + * Steffen Winterfeldt <snwint@suse.de>,
361     + * Michael Schroeder <mls@suse.de>,
362     + * Ken Wimer <wimer@suse.de>.
363     + *
364     + * This file is subject to the terms and conditions of the GNU General Public
365     + * License. See the file COPYING in the main directory of this archive for
366     + * more details.
367     + */
368     +#include <linux/module.h>
369     +#include <linux/types.h>
370     +#include <linux/fb.h>
371     +#include <linux/selection.h>
372     +#include <linux/slab.h>
373     +#include <linux/vt_kern.h>
374     +#include <asm/irq.h>
375     +#include <asm/system.h>
376     +
377     +#include "fbcon.h"
378     +#include "fbcondecor.h"
379     +
380     +#define parse_pixel(shift,bpp,type) \
381     + do { \
382     + if (d & (0x80 >> (shift))) \
383     + dd2[(shift)] = fgx; \
384     + else \
385     + dd2[(shift)] = transparent ? *(type *)decor_src : bgx; \
386     + decor_src += (bpp); \
387     + } while (0) \
388     +
389     +extern int get_color(struct vc_data *vc, struct fb_info *info,
390     + u16 c, int is_fg);
391     +
392     +void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc)
393     +{
394     + int i, j, k;
395     + int minlen = min(min(info->var.red.length, info->var.green.length),
396     + info->var.blue.length);
397     + u32 col;
398     +
399     + for (j = i = 0; i < 16; i++) {
400     + k = color_table[i];
401     +
402     + col = ((vc->vc_palette[j++] >> (8-minlen))
403     + << info->var.red.offset);
404     + col |= ((vc->vc_palette[j++] >> (8-minlen))
405     + << info->var.green.offset);
406     + col |= ((vc->vc_palette[j++] >> (8-minlen))
407     + << info->var.blue.offset);
408     + ((u32 *)info->pseudo_palette)[k] = col;
409     + }
410     +}
411     +
412     +void fbcon_decor_renderc(struct fb_info *info, int ypos, int xpos, int height,
413     + int width, u8* src, u32 fgx, u32 bgx, u8 transparent)
414     +{
415     + unsigned int x, y;
416     + u32 dd;
417     + int bytespp = ((info->var.bits_per_pixel + 7) >> 3);
418     + unsigned int d = ypos * info->fix.line_length + xpos * bytespp;
419     + unsigned int ds = (ypos * info->var.xres + xpos) * bytespp;
420     + u16 dd2[4];
421     +
422     + u8* decor_src = (u8 *)(info->bgdecor.data + ds);
423     + u8* dst = (u8 *)(info->screen_base + d);
424     +
425     + if ((ypos + height) > info->var.yres || (xpos + width) > info->var.xres)
426     + return;
427     +
428     + for (y = 0; y < height; y++) {
429     + switch (info->var.bits_per_pixel) {
430     +
431     + case 32:
432     + for (x = 0; x < width; x++) {
433     +
434     + if ((x & 7) == 0)
435     + d = *src++;
436     + if (d & 0x80)
437     + dd = fgx;
438     + else
439     + dd = transparent ?
440     + *(u32 *)decor_src : bgx;
441     +
442     + d <<= 1;
443     + decor_src += 4;
444     + fb_writel(dd, dst);
445     + dst += 4;
446     + }
447     + break;
448     + case 24:
449     + for (x = 0; x < width; x++) {
450     +
451     + if ((x & 7) == 0)
452     + d = *src++;
453     + if (d & 0x80)
454     + dd = fgx;
455     + else
456     + dd = transparent ?
457     + (*(u32 *)decor_src & 0xffffff) : bgx;
458     +
459     + d <<= 1;
460     + decor_src += 3;
461     +#ifdef __LITTLE_ENDIAN
462     + fb_writew(dd & 0xffff, dst);
463     + dst += 2;
464     + fb_writeb((dd >> 16), dst);
465     +#else
466     + fb_writew(dd >> 8, dst);
467     + dst += 2;
468     + fb_writeb(dd & 0xff, dst);
469     +#endif
470     + dst++;
471     + }
472     + break;
473     + case 16:
474     + for (x = 0; x < width; x += 2) {
475     + if ((x & 7) == 0)
476     + d = *src++;
477     +
478     + parse_pixel(0, 2, u16);
479     + parse_pixel(1, 2, u16);
480     +#ifdef __LITTLE_ENDIAN
481     + dd = dd2[0] | (dd2[1] << 16);
482     +#else
483     + dd = dd2[1] | (dd2[0] << 16);
484     +#endif
485     + d <<= 2;
486     + fb_writel(dd, dst);
487     + dst += 4;
488     + }
489     + break;
490     +
491     + case 8:
492     + for (x = 0; x < width; x += 4) {
493     + if ((x & 7) == 0)
494     + d = *src++;
495     +
496     + parse_pixel(0, 1, u8);
497     + parse_pixel(1, 1, u8);
498     + parse_pixel(2, 1, u8);
499     + parse_pixel(3, 1, u8);
500     +
501     +#ifdef __LITTLE_ENDIAN
502     + dd = dd2[0] | (dd2[1] << 8) | (dd2[2] << 16) | (dd2[3] << 24);
503     +#else
504     + dd = dd2[3] | (dd2[2] << 8) | (dd2[1] << 16) | (dd2[0] << 24);
505     +#endif
506     + d <<= 4;
507     + fb_writel(dd, dst);
508     + dst += 4;
509     + }
510     + }
511     +
512     + dst += info->fix.line_length - width * bytespp;
513     + decor_src += (info->var.xres - width) * bytespp;
514     + }
515     +}
516     +
517     +#define cc2cx(a) \
518     + ((info->fix.visual == FB_VISUAL_TRUECOLOR || \
519     + info->fix.visual == FB_VISUAL_DIRECTCOLOR) ? \
520     + ((u32*)info->pseudo_palette)[a] : a)
521     +
522     +void fbcon_decor_putcs(struct vc_data *vc, struct fb_info *info,
523     + const unsigned short *s, int count, int yy, int xx)
524     +{
525     + unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
526     + struct fbcon_ops *ops = info->fbcon_par;
527     + int fg_color, bg_color, transparent;
528     + u8 *src;
529     + u32 bgx, fgx;
530     + u16 c = scr_readw(s);
531     +
532     + fg_color = get_color(vc, info, c, 1);
533     + bg_color = get_color(vc, info, c, 0);
534     +
535     + /* Don't paint the background image if console is blanked */
536     + transparent = ops->blank_state ? 0 :
537     + (vc->vc_decor.bg_color == bg_color);
538     +
539     + xx = xx * vc->vc_font.width + vc->vc_decor.tx;
540     + yy = yy * vc->vc_font.height + vc->vc_decor.ty;
541     +
542     + fgx = cc2cx(fg_color);
543     + bgx = cc2cx(bg_color);
544     +
545     + while (count--) {
546     + c = scr_readw(s++);
547     + src = vc->vc_font.data + (c & charmask) * vc->vc_font.height *
548     + ((vc->vc_font.width + 7) >> 3);
549     +
550     + fbcon_decor_renderc(info, yy, xx, vc->vc_font.height,
551     + vc->vc_font.width, src, fgx, bgx, transparent);
552     + xx += vc->vc_font.width;
553     + }
554     +}
555     +
556     +void fbcon_decor_cursor(struct fb_info *info, struct fb_cursor *cursor)
557     +{
558     + int i;
559     + unsigned int dsize, s_pitch;
560     + struct fbcon_ops *ops = info->fbcon_par;
561     + struct vc_data* vc;
562     + u8 *src;
563     +
564     + /* we really don't need any cursors while the console is blanked */
565     + if (info->state != FBINFO_STATE_RUNNING || ops->blank_state)
566     + return;
567     +
568     + vc = vc_cons[ops->currcon].d;
569     +
570     + src = kmalloc(64 + sizeof(struct fb_image), GFP_ATOMIC);
571     + if (!src)
572     + return;
573     +
574     + s_pitch = (cursor->image.width + 7) >> 3;
575     + dsize = s_pitch * cursor->image.height;
576     + if (cursor->enable) {
577     + switch (cursor->rop) {
578     + case ROP_XOR:
579     + for (i = 0; i < dsize; i++)
580     + src[i] = cursor->image.data[i] ^ cursor->mask[i];
581     + break;
582     + case ROP_COPY:
583     + default:
584     + for (i = 0; i < dsize; i++)
585     + src[i] = cursor->image.data[i] & cursor->mask[i];
586     + break;
587     + }
588     + } else
589     + memcpy(src, cursor->image.data, dsize);
590     +
591     + fbcon_decor_renderc(info,
592     + cursor->image.dy + vc->vc_decor.ty,
593     + cursor->image.dx + vc->vc_decor.tx,
594     + cursor->image.height,
595     + cursor->image.width,
596     + (u8*)src,
597     + cc2cx(cursor->image.fg_color),
598     + cc2cx(cursor->image.bg_color),
599     + cursor->image.bg_color == vc->vc_decor.bg_color);
600     +
601     + kfree(src);
602     +}
603     +
604     +static void decorset(u8 *dst, int height, int width, int dstbytes,
605     + u32 bgx, int bpp)
606     +{
607     + int i;
608     +
609     + if (bpp == 8)
610     + bgx |= bgx << 8;
611     + if (bpp == 16 || bpp == 8)
612     + bgx |= bgx << 16;
613     +
614     + while (height-- > 0) {
615     + u8 *p = dst;
616     +
617     + switch (bpp) {
618     +
619     + case 32:
620     + for (i=0; i < width; i++) {
621     + fb_writel(bgx, p); p += 4;
622     + }
623     + break;
624     + case 24:
625     + for (i=0; i < width; i++) {
626     +#ifdef __LITTLE_ENDIAN
627     + fb_writew((bgx & 0xffff),(u16*)p); p += 2;
628     + fb_writeb((bgx >> 16),p++);
629     +#else
630     + fb_writew((bgx >> 8),(u16*)p); p += 2;
631     + fb_writeb((bgx & 0xff),p++);
632     +#endif
633     + }
634     + case 16:
635     + for (i=0; i < width/4; i++) {
636     + fb_writel(bgx,p); p += 4;
637     + fb_writel(bgx,p); p += 4;
638     + }
639     + if (width & 2) {
640     + fb_writel(bgx,p); p += 4;
641     + }
642     + if (width & 1)
643     + fb_writew(bgx,(u16*)p);
644     + break;
645     + case 8:
646     + for (i=0; i < width/4; i++) {
647     + fb_writel(bgx,p); p += 4;
648     + }
649     +
650     + if (width & 2) {
651     + fb_writew(bgx,p); p += 2;
652     + }
653     + if (width & 1)
654     + fb_writeb(bgx,(u8*)p);
655     + break;
656     +
657     + }
658     + dst += dstbytes;
659     + }
660     +}
661     +
662     +void fbcon_decor_copy(u8 *dst, u8 *src, int height, int width, int linebytes,
663     + int srclinebytes, int bpp)
664     +{
665     + int i;
666     +
667     + while (height-- > 0) {
668     + u32 *p = (u32 *)dst;
669     + u32 *q = (u32 *)src;
670     +
671     + switch (bpp) {
672     +
673     + case 32:
674     + for (i=0; i < width; i++)
675     + fb_writel(*q++, p++);
676     + break;
677     + case 24:
678     + for (i=0; i < (width*3/4); i++)
679     + fb_writel(*q++, p++);
680     + if ((width*3) % 4) {
681     + if (width & 2) {
682     + fb_writeb(*(u8*)q, (u8*)p);
683     + } else if (width & 1) {
684     + fb_writew(*(u16*)q, (u16*)p);
685     + fb_writeb(*(u8*)((u16*)q+1),(u8*)((u16*)p+2));
686     + }
687     + }
688     + break;
689     + case 16:
690     + for (i=0; i < width/4; i++) {
691     + fb_writel(*q++, p++);
692     + fb_writel(*q++, p++);
693     + }
694     + if (width & 2)
695     + fb_writel(*q++, p++);
696     + if (width & 1)
697     + fb_writew(*(u16*)q, (u16*)p);
698     + break;
699     + case 8:
700     + for (i=0; i < width/4; i++)
701     + fb_writel(*q++, p++);
702     +
703     + if (width & 2) {
704     + fb_writew(*(u16*)q, (u16*)p);
705     + q = (u32*) ((u16*)q + 1);
706     + p = (u32*) ((u16*)p + 1);
707     + }
708     + if (width & 1)
709     + fb_writeb(*(u8*)q, (u8*)p);
710     + break;
711     + }
712     +
713     + dst += linebytes;
714     + src += srclinebytes;
715     + }
716     +}
717     +
718     +static void decorfill(struct fb_info *info, int sy, int sx, int height,
719     + int width)
720     +{
721     + int bytespp = ((info->var.bits_per_pixel + 7) >> 3);
722     + int d = sy * info->fix.line_length + sx * bytespp;
723     + int ds = (sy * info->var.xres + sx) * bytespp;
724     +
725     + fbcon_decor_copy((u8 *)(info->screen_base + d), (u8 *)(info->bgdecor.data + ds),
726     + height, width, info->fix.line_length, info->var.xres * bytespp,
727     + info->var.bits_per_pixel);
728     +}
729     +
730     +void fbcon_decor_clear(struct vc_data *vc, struct fb_info *info, int sy, int sx,
731     + int height, int width)
732     +{
733     + int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
734     + struct fbcon_ops *ops = info->fbcon_par;
735     + u8 *dst;
736     + int transparent, bg_color = attr_bgcol_ec(bgshift, vc, info);
737     +
738     + transparent = (vc->vc_decor.bg_color == bg_color);
739     + sy = sy * vc->vc_font.height + vc->vc_decor.ty;
740     + sx = sx * vc->vc_font.width + vc->vc_decor.tx;
741     + height *= vc->vc_font.height;
742     + width *= vc->vc_font.width;
743     +
744     + /* Don't paint the background image if console is blanked */
745     + if (transparent && !ops->blank_state) {
746     + decorfill(info, sy, sx, height, width);
747     + } else {
748     + dst = (u8 *)(info->screen_base + sy * info->fix.line_length +
749     + sx * ((info->var.bits_per_pixel + 7) >> 3));
750     + decorset(dst, height, width, info->fix.line_length, cc2cx(bg_color),
751     + info->var.bits_per_pixel);
752     + }
753     +}
754     +
755     +void fbcon_decor_clear_margins(struct vc_data *vc, struct fb_info *info,
756     + int bottom_only)
757     +{
758     + unsigned int tw = vc->vc_cols*vc->vc_font.width;
759     + unsigned int th = vc->vc_rows*vc->vc_font.height;
760     +
761     + if (!bottom_only) {
762     + /* top margin */
763     + decorfill(info, 0, 0, vc->vc_decor.ty, info->var.xres);
764     + /* left margin */
765     + decorfill(info, vc->vc_decor.ty, 0, th, vc->vc_decor.tx);
766     + /* right margin */
767     + decorfill(info, vc->vc_decor.ty, vc->vc_decor.tx + tw, th,
768     + info->var.xres - vc->vc_decor.tx - tw);
769     + }
770     + decorfill(info, vc->vc_decor.ty + th, 0,
771     + info->var.yres - vc->vc_decor.ty - th, info->var.xres);
772     +}
773     +
774     +void fbcon_decor_bmove_redraw(struct vc_data *vc, struct fb_info *info, int y,
775     + int sx, int dx, int width)
776     +{
777     + u16 *d = (u16 *) (vc->vc_origin + vc->vc_size_row * y + dx * 2);
778     + u16 *s = d + (dx - sx);
779     + u16 *start = d;
780     + u16 *ls = d;
781     + u16 *le = d + width;
782     + u16 c;
783     + int x = dx;
784     + u16 attr = 1;
785     +
786     + do {
787     + c = scr_readw(d);
788     + if (attr != (c & 0xff00)) {
789     + attr = c & 0xff00;
790     + if (d > start) {
791     + fbcon_decor_putcs(vc, info, start, d - start, y, x);
792     + x += d - start;
793     + start = d;
794     + }
795     + }
796     + if (s >= ls && s < le && c == scr_readw(s)) {
797     + if (d > start) {
798     + fbcon_decor_putcs(vc, info, start, d - start, y, x);
799     + x += d - start + 1;
800     + start = d + 1;
801     + } else {
802     + x++;
803     + start++;
804     + }
805     + }
806     + s++;
807     + d++;
808     + } while (d < le);
809     + if (d > start)
810     + fbcon_decor_putcs(vc, info, start, d - start, y, x);
811     +}
812     +
813     +void fbcon_decor_blank(struct vc_data *vc, struct fb_info *info, int blank)
814     +{
815     + if (blank) {
816     + decorset((u8 *)info->screen_base, info->var.yres, info->var.xres,
817     + info->fix.line_length, 0, info->var.bits_per_pixel);
818     + } else {
819     + update_screen(vc);
820     + fbcon_decor_clear_margins(vc, info, 0);
821     + }
822     +}
823     +
824     diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
825     index b0a3fa0..7121e94 100644
826     --- a/drivers/video/console/fbcon.c
827     +++ b/drivers/video/console/fbcon.c
828     @@ -80,6 +80,7 @@
829     #include <asm/system.h>
830    
831     #include "fbcon.h"
832     +#include "fbcondecor.h"
833    
834     #ifdef FBCONDEBUG
835     # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args)
836     @@ -95,7 +96,7 @@ enum {
837    
838     static struct display fb_display[MAX_NR_CONSOLES];
839    
840     -static signed char con2fb_map[MAX_NR_CONSOLES];
841     +signed char con2fb_map[MAX_NR_CONSOLES];
842     static signed char con2fb_map_boot[MAX_NR_CONSOLES];
843    
844     static int logo_lines;
845     @@ -286,7 +287,7 @@ static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info)
846     vc->vc_mode != KD_TEXT || ops->graphics);
847     }
848    
849     -static inline int get_color(struct vc_data *vc, struct fb_info *info,
850     +inline int get_color(struct vc_data *vc, struct fb_info *info,
851     u16 c, int is_fg)
852     {
853     int depth = fb_get_color_depth(&info->var, &info->fix);
854     @@ -391,6 +392,7 @@ static void fb_flashcursor(struct work_struct *work)
855     CM_ERASE : CM_DRAW;
856     ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1),
857     get_color(vc, info, c, 0));
858     +
859     release_console_sem();
860     }
861    
862     @@ -527,6 +529,9 @@ static int search_for_mapped_con(void)
863     static int fbcon_takeover(int show_logo)
864     {
865     int err, i;
866     +#ifdef CONFIG_FB_CON_DECOR
867     + struct fb_info *info;
868     +#endif
869    
870     if (!num_registered_fb)
871     return -ENODEV;
872     @@ -547,6 +552,12 @@ static int fbcon_takeover(int show_logo)
873     info_idx = -1;
874     } else {
875     fbcon_has_console_bind = 1;
876     +#ifdef CONFIG_FB_CON_DECOR
877     + info = registered_fb[info_idx];
878     + unlock_fb_info(info);
879     + fbcon_decor_init();
880     + lock_fb_info(info);
881     +#endif
882     }
883    
884     return err;
885     @@ -1001,6 +1012,12 @@ static const char *fbcon_startup(void)
886     rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
887     cols /= vc->vc_font.width;
888     rows /= vc->vc_font.height;
889     +
890     + if (fbcon_decor_active(info, vc)) {
891     + cols = vc->vc_decor.twidth / vc->vc_font.width;
892     + rows = vc->vc_decor.theight / vc->vc_font.height;
893     + }
894     +
895     vc_resize(vc, cols, rows);
896    
897     DPRINTK("mode: %s\n", info->fix.id);
898     @@ -1030,7 +1047,7 @@ static void fbcon_init(struct vc_data *vc, int init)
899     cap = info->flags;
900    
901     if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW ||
902     - (info->fix.type == FB_TYPE_TEXT))
903     + (info->fix.type == FB_TYPE_TEXT) || fbcon_decor_active(info, vc))
904     logo = 0;
905    
906     if (var_to_display(p, &info->var, info))
907     @@ -1239,6 +1256,11 @@ static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height,
908     if (sy < vc->vc_top && vc->vc_top == logo_lines)
909     vc->vc_top = 0;
910    
911     + if (fbcon_decor_active(info, vc)) {
912     + fbcon_decor_clear(vc, info, sy, sx, height, width);
913     + return;
914     + }
915     +
916     /* Split blits that cross physical y_wrap boundary */
917    
918     y_break = p->vrows - p->yscroll;
919     @@ -1258,10 +1280,15 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s,
920     struct display *p = &fb_display[vc->vc_num];
921     struct fbcon_ops *ops = info->fbcon_par;
922    
923     - if (!fbcon_is_inactive(vc, info))
924     - ops->putcs(vc, info, s, count, real_y(p, ypos), xpos,
925     - get_color(vc, info, scr_readw(s), 1),
926     - get_color(vc, info, scr_readw(s), 0));
927     + if (!fbcon_is_inactive(vc, info)) {
928     +
929     + if (fbcon_decor_active(info, vc))
930     + fbcon_decor_putcs(vc, info, s, count, ypos, xpos);
931     + else
932     + ops->putcs(vc, info, s, count, real_y(p, ypos), xpos,
933     + get_color(vc, info, scr_readw(s), 1),
934     + get_color(vc, info, scr_readw(s), 0));
935     + }
936     }
937    
938     static void fbcon_putc(struct vc_data *vc, int c, int ypos, int xpos)
939     @@ -1277,8 +1304,13 @@ static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
940     struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
941     struct fbcon_ops *ops = info->fbcon_par;
942    
943     - if (!fbcon_is_inactive(vc, info))
944     - ops->clear_margins(vc, info, bottom_only);
945     + if (!fbcon_is_inactive(vc, info)) {
946     + if (fbcon_decor_active(info, vc)) {
947     + fbcon_decor_clear_margins(vc, info, bottom_only);
948     + } else {
949     + ops->clear_margins(vc, info, bottom_only);
950     + }
951     + }
952     }
953    
954     static void fbcon_cursor(struct vc_data *vc, int mode)
955     @@ -1798,7 +1830,7 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
956     count = vc->vc_rows;
957     if (softback_top)
958     fbcon_softback_note(vc, t, count);
959     - if (logo_shown >= 0)
960     + if (logo_shown >= 0 || fbcon_decor_active(info, vc))
961     goto redraw_up;
962     switch (p->scrollmode) {
963     case SCROLL_MOVE:
964     @@ -1891,6 +1923,8 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
965     count = vc->vc_rows;
966     if (logo_shown >= 0)
967     goto redraw_down;
968     + if (fbcon_decor_active(info, vc))
969     + goto redraw_down;
970     switch (p->scrollmode) {
971     case SCROLL_MOVE:
972     fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,
973     @@ -2039,6 +2073,13 @@ static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int s
974     }
975     return;
976     }
977     +
978     + if (fbcon_decor_active(info, vc) && sy == dy && height == 1) {
979     + /* must use slower redraw bmove to keep background pic intact */
980     + fbcon_decor_bmove_redraw(vc, info, sy, sx, dx, width);
981     + return;
982     + }
983     +
984     ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx,
985     height, width);
986     }
987     @@ -2109,8 +2150,8 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width,
988     var.yres = virt_h * virt_fh;
989     x_diff = info->var.xres - var.xres;
990     y_diff = info->var.yres - var.yres;
991     - if (x_diff < 0 || x_diff > virt_fw ||
992     - y_diff < 0 || y_diff > virt_fh) {
993     + if ((x_diff < 0 || x_diff > virt_fw ||
994     + y_diff < 0 || y_diff > virt_fh) && !vc->vc_decor.state) {
995     const struct fb_videomode *mode;
996    
997     DPRINTK("attempting resize %ix%i\n", var.xres, var.yres);
998     @@ -2146,6 +2187,21 @@ static int fbcon_switch(struct vc_data *vc)
999    
1000     info = registered_fb[con2fb_map[vc->vc_num]];
1001     ops = info->fbcon_par;
1002     + prev_console = ops->currcon;
1003     + if (prev_console != -1)
1004     + old_info = registered_fb[con2fb_map[prev_console]];
1005     +
1006     +#ifdef CONFIG_FB_CON_DECOR
1007     + if (!fbcon_decor_active_vc(vc) && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1008     + struct vc_data *vc_curr = vc_cons[prev_console].d;
1009     + if (vc_curr && fbcon_decor_active_vc(vc_curr)) {
1010     + /* Clear the screen to avoid displaying funky colors during
1011     + * palette updates. */
1012     + memset((u8*)info->screen_base + info->fix.line_length * info->var.yoffset,
1013     + 0, info->var.yres * info->fix.line_length);
1014     + }
1015     + }
1016     +#endif
1017    
1018     if (softback_top) {
1019     if (softback_lines)
1020     @@ -2164,9 +2220,6 @@ static int fbcon_switch(struct vc_data *vc)
1021     logo_shown = FBCON_LOGO_CANSHOW;
1022     }
1023    
1024     - prev_console = ops->currcon;
1025     - if (prev_console != -1)
1026     - old_info = registered_fb[con2fb_map[prev_console]];
1027     /*
1028     * FIXME: If we have multiple fbdev's loaded, we need to
1029     * update all info->currcon. Perhaps, we can place this
1030     @@ -2210,6 +2263,18 @@ static int fbcon_switch(struct vc_data *vc)
1031     fbcon_del_cursor_timer(old_info);
1032     }
1033    
1034     + if (fbcon_decor_active_vc(vc)) {
1035     + struct vc_data *vc_curr = vc_cons[prev_console].d;
1036     +
1037     + if (!vc_curr->vc_decor.theme ||
1038     + strcmp(vc->vc_decor.theme, vc_curr->vc_decor.theme) ||
1039     + (fbcon_decor_active_nores(info, vc_curr) &&
1040     + !fbcon_decor_active(info, vc_curr))) {
1041     + if (fbcon_decor_call_helper("modechange", vc->vc_num))
1042     + fbcon_decor_disable(vc, 0);
1043     + }
1044     + }
1045     +
1046     if (fbcon_is_inactive(vc, info) ||
1047     ops->blank_state != FB_BLANK_UNBLANK)
1048     fbcon_del_cursor_timer(info);
1049     @@ -2318,15 +2383,20 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch)
1050     }
1051     }
1052    
1053     - if (!fbcon_is_inactive(vc, info)) {
1054     + if (!fbcon_is_inactive(vc, info)) {
1055     if (ops->blank_state != blank) {
1056     ops->blank_state = blank;
1057     fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW);
1058     ops->cursor_flash = (!blank);
1059    
1060     - if (!(info->flags & FBINFO_MISC_USEREVENT))
1061     - if (fb_blank(info, blank))
1062     - fbcon_generic_blank(vc, info, blank);
1063     + if (!(info->flags & FBINFO_MISC_USEREVENT)) {
1064     + if (fb_blank(info, blank)) {
1065     + if (fbcon_decor_active(info, vc))
1066     + fbcon_decor_blank(vc, info, blank);
1067     + else
1068     + fbcon_generic_blank(vc, info, blank);
1069     + }
1070     + }
1071     }
1072    
1073     if (!blank)
1074     @@ -2477,13 +2547,22 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
1075     }
1076    
1077     if (resize) {
1078     + /* reset wrap/pan */
1079     int cols, rows;
1080    
1081     cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres);
1082     rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
1083     +
1084     + if (fbcon_decor_active(info, vc)) {
1085     + info->var.xoffset = info->var.yoffset = p->yscroll = 0;
1086     + cols = vc->vc_decor.twidth;
1087     + rows = vc->vc_decor.theight;
1088     + }
1089     cols /= w;
1090     rows /= h;
1091     +
1092     vc_resize(vc, cols, rows);
1093     +
1094     if (CON_IS_VISIBLE(vc) && softback_buf)
1095     fbcon_update_softback(vc);
1096     } else if (CON_IS_VISIBLE(vc)
1097     @@ -2612,7 +2691,11 @@ static int fbcon_set_palette(struct vc_data *vc, unsigned char *table)
1098     int i, j, k, depth;
1099     u8 val;
1100    
1101     - if (fbcon_is_inactive(vc, info))
1102     + if (fbcon_is_inactive(vc, info)
1103     +#ifdef CONFIG_FB_CON_DECOR
1104     + || vc->vc_num != fg_console
1105     +#endif
1106     + )
1107     return -EINVAL;
1108    
1109     if (!CON_IS_VISIBLE(vc))
1110     @@ -2638,7 +2721,49 @@ static int fbcon_set_palette(struct vc_data *vc, unsigned char *table)
1111     } else
1112     fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap);
1113    
1114     - return fb_set_cmap(&palette_cmap, info);
1115     + if (fbcon_decor_active(info, vc_cons[fg_console].d) &&
1116     + info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
1117     +
1118     + u16 *red, *green, *blue;
1119     + int minlen = min(min(info->var.red.length, info->var.green.length),
1120     + info->var.blue.length);
1121     + int h;
1122     +
1123     + struct fb_cmap cmap = {
1124     + .start = 0,
1125     + .len = (1 << minlen),
1126     + .red = NULL,
1127     + .green = NULL,
1128     + .blue = NULL,
1129     + .transp = NULL
1130     + };
1131     +
1132     + red = kmalloc(256 * sizeof(u16) * 3, GFP_KERNEL);
1133     +
1134     + if (!red)
1135     + goto out;
1136     +
1137     + green = red + 256;
1138     + blue = green + 256;
1139     + cmap.red = red;
1140     + cmap.green = green;
1141     + cmap.blue = blue;
1142     +
1143     + for (i = 0; i < cmap.len; i++) {
1144     + red[i] = green[i] = blue[i] = (0xffff * i)/(cmap.len-1);
1145     + }
1146     +
1147     + h = fb_set_cmap(&cmap, info);
1148     + fbcon_decor_fix_pseudo_pal(info, vc_cons[fg_console].d);
1149     + kfree(red);
1150     +
1151     + return h;
1152     +
1153     + } else if (fbcon_decor_active(info, vc_cons[fg_console].d) &&
1154     + info->var.bits_per_pixel == 8 && info->bgdecor.cmap.red != NULL)
1155     + fb_set_cmap(&info->bgdecor.cmap, info);
1156     +
1157     +out: return fb_set_cmap(&palette_cmap, info);
1158     }
1159    
1160     static u16 *fbcon_screen_pos(struct vc_data *vc, int offset)
1161     @@ -2846,7 +2971,7 @@ static void fbcon_modechanged(struct fb_info *info)
1162     struct fbcon_ops *ops = info->fbcon_par;
1163     struct vc_data *vc;
1164     struct display *p;
1165     - int rows, cols;
1166     + int rows, cols, res;
1167    
1168     if (!ops || ops->currcon < 0)
1169     return;
1170     @@ -2864,7 +2989,18 @@ static void fbcon_modechanged(struct fb_info *info)
1171     rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
1172     cols /= vc->vc_font.width;
1173     rows /= vc->vc_font.height;
1174     - vc_resize(vc, cols, rows);
1175     +
1176     + if (!fbcon_decor_active_nores(info, vc)) {
1177     + vc_resize(vc, cols, rows);
1178     + } else {
1179     + /* HACK: Do this properly at some point.. */
1180     + unlock_fb_info(info);
1181     + res = fbcon_decor_call_helper("modechange", vc->vc_num);
1182     + lock_fb_info(info);
1183     + if (res)
1184     + fbcon_decor_disable(vc, 0);
1185     + }
1186     +
1187     updatescrollmode(p, info, vc);
1188     scrollback_max = 0;
1189     scrollback_current = 0;
1190     @@ -3516,6 +3652,7 @@ static void fbcon_exit(void)
1191     }
1192     }
1193    
1194     + fbcon_decor_exit();
1195     fbcon_has_exited = 1;
1196     }
1197    
1198     diff --git a/drivers/video/console/fbcondecor.c b/drivers/video/console/fbcondecor.c
1199     new file mode 100644
1200     index 0000000..a0b4ae3
1201     --- /dev/null
1202     +++ b/drivers/video/console/fbcondecor.c
1203     @@ -0,0 +1,561 @@
1204     +/*
1205     + * linux/drivers/video/console/fbcondecor.c -- Framebuffer console decorations
1206     + *
1207     + * Copyright (C) 2004-2009 Michal Januszewski <spock@gentoo.org>
1208     + *
1209     + * Code based upon "Bootsplash" (C) 2001-2003
1210     + * Volker Poplawski <volker@poplawski.de>,
1211     + * Stefan Reinauer <stepan@suse.de>,
1212     + * Steffen Winterfeldt <snwint@suse.de>,
1213     + * Michael Schroeder <mls@suse.de>,
1214     + * Ken Wimer <wimer@suse.de>.
1215     + *
1216     + * Compat ioctl support by Thorsten Klein <TK@Thorsten-Klein.de>.
1217     + *
1218     + * This file is subject to the terms and conditions of the GNU General Public
1219     + * License. See the file COPYING in the main directory of this archive for
1220     + * more details.
1221     + *
1222     + */
1223     +#include <linux/module.h>
1224     +#include <linux/kernel.h>
1225     +#include <linux/string.h>
1226     +#include <linux/types.h>
1227     +#include <linux/fb.h>
1228     +#include <linux/vt_kern.h>
1229     +#include <linux/vmalloc.h>
1230     +#include <linux/unistd.h>
1231     +#include <linux/syscalls.h>
1232     +#include <linux/init.h>
1233     +#include <linux/proc_fs.h>
1234     +#include <linux/workqueue.h>
1235     +#include <linux/kmod.h>
1236     +#include <linux/miscdevice.h>
1237     +#include <linux/device.h>
1238     +#include <linux/fs.h>
1239     +#include <linux/compat.h>
1240     +
1241     +#include <asm/uaccess.h>
1242     +#include <asm/irq.h>
1243     +#include <asm/system.h>
1244     +
1245     +#include "fbcon.h"
1246     +#include "fbcondecor.h"
1247     +
1248     +extern signed char con2fb_map[];
1249     +static int fbcon_decor_enable(struct vc_data *vc);
1250     +char fbcon_decor_path[KMOD_PATH_LEN] = "/sbin/fbcondecor_helper";
1251     +static int initialized = 0;
1252     +
1253     +int fbcon_decor_call_helper(char* cmd, unsigned short vc)
1254     +{
1255     + char *envp[] = {
1256     + "HOME=/",
1257     + "PATH=/sbin:/bin",
1258     + NULL
1259     + };
1260     +
1261     + char tfb[5];
1262     + char tcons[5];
1263     + unsigned char fb = (int) con2fb_map[vc];
1264     +
1265     + char *argv[] = {
1266     + fbcon_decor_path,
1267     + "2",
1268     + cmd,
1269     + tcons,
1270     + tfb,
1271     + vc_cons[vc].d->vc_decor.theme,
1272     + NULL
1273     + };
1274     +
1275     + snprintf(tfb,5,"%d",fb);
1276     + snprintf(tcons,5,"%d",vc);
1277     +
1278     + return call_usermodehelper(fbcon_decor_path, argv, envp, 1);
1279     +}
1280     +
1281     +/* Disables fbcondecor on a virtual console; called with console sem held. */
1282     +int fbcon_decor_disable(struct vc_data *vc, unsigned char redraw)
1283     +{
1284     + struct fb_info* info;
1285     +
1286     + if (!vc->vc_decor.state)
1287     + return -EINVAL;
1288     +
1289     + info = registered_fb[(int) con2fb_map[vc->vc_num]];
1290     +
1291     + if (info == NULL)
1292     + return -EINVAL;
1293     +
1294     + vc->vc_decor.state = 0;
1295     + vc_resize(vc, info->var.xres / vc->vc_font.width,
1296     + info->var.yres / vc->vc_font.height);
1297     +
1298     + if (fg_console == vc->vc_num && redraw) {
1299     + redraw_screen(vc, 0);
1300     + update_region(vc, vc->vc_origin +
1301     + vc->vc_size_row * vc->vc_top,
1302     + vc->vc_size_row * (vc->vc_bottom - vc->vc_top) / 2);
1303     + }
1304     +
1305     + printk(KERN_INFO "fbcondecor: switched decor state to 'off' on console %d\n",
1306     + vc->vc_num);
1307     +
1308     + return 0;
1309     +}
1310     +
1311     +/* Enables fbcondecor on a virtual console; called with console sem held. */
1312     +static int fbcon_decor_enable(struct vc_data *vc)
1313     +{
1314     + struct fb_info* info;
1315     +
1316     + info = registered_fb[(int) con2fb_map[vc->vc_num]];
1317     +
1318     + if (vc->vc_decor.twidth == 0 || vc->vc_decor.theight == 0 ||
1319     + info == NULL || vc->vc_decor.state || (!info->bgdecor.data &&
1320     + vc->vc_num == fg_console))
1321     + return -EINVAL;
1322     +
1323     + vc->vc_decor.state = 1;
1324     + vc_resize(vc, vc->vc_decor.twidth / vc->vc_font.width,
1325     + vc->vc_decor.theight / vc->vc_font.height);
1326     +
1327     + if (fg_console == vc->vc_num) {
1328     + redraw_screen(vc, 0);
1329     + update_region(vc, vc->vc_origin +
1330     + vc->vc_size_row * vc->vc_top,
1331     + vc->vc_size_row * (vc->vc_bottom - vc->vc_top) / 2);
1332     + fbcon_decor_clear_margins(vc, info, 0);
1333     + }
1334     +
1335     + printk(KERN_INFO "fbcondecor: switched decor state to 'on' on console %d\n",
1336     + vc->vc_num);
1337     +
1338     + return 0;
1339     +}
1340     +
1341     +static inline int fbcon_decor_ioctl_dosetstate(struct vc_data *vc, unsigned int state, unsigned char origin)
1342     +{
1343     + int ret;
1344     +
1345     + if (origin == FBCON_DECOR_IO_ORIG_USER)
1346     + acquire_console_sem();
1347     + if (!state)
1348     + ret = fbcon_decor_disable(vc, 1);
1349     + else
1350     + ret = fbcon_decor_enable(vc);
1351     + if (origin == FBCON_DECOR_IO_ORIG_USER)
1352     + release_console_sem();
1353     +
1354     + return ret;
1355     +}
1356     +
1357     +static inline void fbcon_decor_ioctl_dogetstate(struct vc_data *vc, unsigned int *state)
1358     +{
1359     + *state = vc->vc_decor.state;
1360     +}
1361     +
1362     +static int fbcon_decor_ioctl_dosetcfg(struct vc_data *vc, struct vc_decor *cfg, unsigned char origin)
1363     +{
1364     + struct fb_info *info;
1365     + int len;
1366     + char *tmp;
1367     +
1368     + info = registered_fb[(int) con2fb_map[vc->vc_num]];
1369     +
1370     + if (info == NULL || !cfg->twidth || !cfg->theight ||
1371     + cfg->tx + cfg->twidth > info->var.xres ||
1372     + cfg->ty + cfg->theight > info->var.yres)
1373     + return -EINVAL;
1374     +
1375     + len = strlen_user(cfg->theme);
1376     + if (!len || len > FBCON_DECOR_THEME_LEN)
1377     + return -EINVAL;
1378     + tmp = kmalloc(len, GFP_KERNEL);
1379     + if (!tmp)
1380     + return -ENOMEM;
1381     + if (copy_from_user(tmp, (void __user *)cfg->theme, len))
1382     + return -EFAULT;
1383     + cfg->theme = tmp;
1384     + cfg->state = 0;
1385     +
1386     + /* If this ioctl is a response to a request from kernel, the console sem
1387     + * is already held; we also don't need to disable decor because either the
1388     + * new config and background picture will be successfully loaded, and the
1389     + * decor will stay on, or in case of a failure it'll be turned off in fbcon. */
1390     + if (origin == FBCON_DECOR_IO_ORIG_USER) {
1391     + acquire_console_sem();
1392     + if (vc->vc_decor.state)
1393     + fbcon_decor_disable(vc, 1);
1394     + }
1395     +
1396     + if (vc->vc_decor.theme)
1397     + kfree(vc->vc_decor.theme);
1398     +
1399     + vc->vc_decor = *cfg;
1400     +
1401     + if (origin == FBCON_DECOR_IO_ORIG_USER)
1402     + release_console_sem();
1403     +
1404     + printk(KERN_INFO "fbcondecor: console %d using theme '%s'\n",
1405     + vc->vc_num, vc->vc_decor.theme);
1406     + return 0;
1407     +}
1408     +
1409     +static int fbcon_decor_ioctl_dogetcfg(struct vc_data *vc, struct vc_decor *decor)
1410     +{
1411     + char __user *tmp;
1412     +
1413     + tmp = decor->theme;
1414     + *decor = vc->vc_decor;
1415     + decor->theme = tmp;
1416     +
1417     + if (vc->vc_decor.theme) {
1418     + if (copy_to_user(tmp, vc->vc_decor.theme, strlen(vc->vc_decor.theme) + 1))
1419     + return -EFAULT;
1420     + } else
1421     + if (put_user(0, tmp))
1422     + return -EFAULT;
1423     +
1424     + return 0;
1425     +}
1426     +
1427     +static int fbcon_decor_ioctl_dosetpic(struct vc_data *vc, struct fb_image *img, unsigned char origin)
1428     +{
1429     + struct fb_info *info;
1430     + int len;
1431     + u8 *tmp;
1432     +
1433     + if (vc->vc_num != fg_console)
1434     + return -EINVAL;
1435     +
1436     + info = registered_fb[(int) con2fb_map[vc->vc_num]];
1437     +
1438     + if (info == NULL)
1439     + return -EINVAL;
1440     +
1441     + if (img->width != info->var.xres || img->height != info->var.yres) {
1442     + printk(KERN_ERR "fbcondecor: picture dimensions mismatch\n");
1443     + printk(KERN_ERR "%dx%d vs %dx%d\n", img->width, img->height, info->var.xres, info->var.yres);
1444     + return -EINVAL;
1445     + }
1446     +
1447     + if (img->depth != info->var.bits_per_pixel) {
1448     + printk(KERN_ERR "fbcondecor: picture depth mismatch\n");
1449     + return -EINVAL;
1450     + }
1451     +
1452     + if (img->depth == 8) {
1453     + if (!img->cmap.len || !img->cmap.red || !img->cmap.green ||
1454     + !img->cmap.blue)
1455     + return -EINVAL;
1456     +
1457     + tmp = vmalloc(img->cmap.len * 3 * 2);
1458     + if (!tmp)
1459     + return -ENOMEM;
1460     +
1461     + if (copy_from_user(tmp,
1462     + (void __user*)img->cmap.red, (img->cmap.len << 1)) ||
1463     + copy_from_user(tmp + (img->cmap.len << 1),
1464     + (void __user*)img->cmap.green, (img->cmap.len << 1)) ||
1465     + copy_from_user(tmp + (img->cmap.len << 2),
1466     + (void __user*)img->cmap.blue, (img->cmap.len << 1))) {
1467     + vfree(tmp);
1468     + return -EFAULT;
1469     + }
1470     +
1471     + img->cmap.transp = NULL;
1472     + img->cmap.red = (u16*)tmp;
1473     + img->cmap.green = img->cmap.red + img->cmap.len;
1474     + img->cmap.blue = img->cmap.green + img->cmap.len;
1475     + } else {
1476     + img->cmap.red = NULL;
1477     + }
1478     +
1479     + len = ((img->depth + 7) >> 3) * img->width * img->height;
1480     +
1481     + /*
1482     + * Allocate an additional byte so that we never go outside of the
1483     + * buffer boundaries in the rendering functions in a 24 bpp mode.
1484     + */
1485     + tmp = vmalloc(len + 1);
1486     +
1487     + if (!tmp)
1488     + goto out;
1489     +
1490     + if (copy_from_user(tmp, (void __user*)img->data, len))
1491     + goto out;
1492     +
1493     + img->data = tmp;
1494     +
1495     + /* If this ioctl is a response to a request from kernel, the console sem
1496     + * is already held. */
1497     + if (origin == FBCON_DECOR_IO_ORIG_USER)
1498     + acquire_console_sem();
1499     +
1500     + if (info->bgdecor.data)
1501     + vfree((u8*)info->bgdecor.data);
1502     + if (info->bgdecor.cmap.red)
1503     + vfree(info->bgdecor.cmap.red);
1504     +
1505     + info->bgdecor = *img;
1506     +
1507     + if (fbcon_decor_active_vc(vc) && fg_console == vc->vc_num) {
1508     + redraw_screen(vc, 0);
1509     + update_region(vc, vc->vc_origin +
1510     + vc->vc_size_row * vc->vc_top,
1511     + vc->vc_size_row * (vc->vc_bottom - vc->vc_top) / 2);
1512     + fbcon_decor_clear_margins(vc, info, 0);
1513     + }
1514     +
1515     + if (origin == FBCON_DECOR_IO_ORIG_USER)
1516     + release_console_sem();
1517     +
1518     + return 0;
1519     +
1520     +out: if (img->cmap.red)
1521     + vfree(img->cmap.red);
1522     +
1523     + if (tmp)
1524     + vfree(tmp);
1525     + return -ENOMEM;
1526     +}
1527     +
1528     +static int fbcon_decor_ioctl(struct inode * inode, struct file *filp, u_int cmd,
1529     + u_long arg)
1530     +{
1531     + struct fbcon_decor_iowrapper __user *wrapper = (void __user*) arg;
1532     + struct vc_data *vc = NULL;
1533     + unsigned short vc_num = 0;
1534     + unsigned char origin = 0;
1535     + void __user *data = NULL;
1536     +
1537     + if (!access_ok(VERIFY_READ, wrapper,
1538     + sizeof(struct fbcon_decor_iowrapper)))
1539     + return -EFAULT;
1540     +
1541     + __get_user(vc_num, &wrapper->vc);
1542     + __get_user(origin, &wrapper->origin);
1543     + __get_user(data, &wrapper->data);
1544     +
1545     + if (!vc_cons_allocated(vc_num))
1546     + return -EINVAL;
1547     +
1548     + vc = vc_cons[vc_num].d;
1549     +
1550     + switch (cmd) {
1551     + case FBIOCONDECOR_SETPIC:
1552     + {
1553     + struct fb_image img;
1554     + if (copy_from_user(&img, (struct fb_image __user *)data, sizeof(struct fb_image)))
1555     + return -EFAULT;
1556     +
1557     + return fbcon_decor_ioctl_dosetpic(vc, &img, origin);
1558     + }
1559     + case FBIOCONDECOR_SETCFG:
1560     + {
1561     + struct vc_decor cfg;
1562     + if (copy_from_user(&cfg, (struct vc_decor __user *)data, sizeof(struct vc_decor)))
1563     + return -EFAULT;
1564     +
1565     + return fbcon_decor_ioctl_dosetcfg(vc, &cfg, origin);
1566     + }
1567     + case FBIOCONDECOR_GETCFG:
1568     + {
1569     + int rval;
1570     + struct vc_decor cfg;
1571     +
1572     + if (copy_from_user(&cfg, (struct vc_decor __user *)data, sizeof(struct vc_decor)))
1573     + return -EFAULT;
1574     +
1575     + rval = fbcon_decor_ioctl_dogetcfg(vc, &cfg);
1576     +
1577     + if (copy_to_user(data, &cfg, sizeof(struct vc_decor)))
1578     + return -EFAULT;
1579     + return rval;
1580     + }
1581     + case FBIOCONDECOR_SETSTATE:
1582     + {
1583     + unsigned int state = 0;
1584     + if (get_user(state, (unsigned int __user *)data))
1585     + return -EFAULT;
1586     + return fbcon_decor_ioctl_dosetstate(vc, state, origin);
1587     + }
1588     + case FBIOCONDECOR_GETSTATE:
1589     + {
1590     + unsigned int state = 0;
1591     + fbcon_decor_ioctl_dogetstate(vc, &state);
1592     + return put_user(state, (unsigned int __user *)data);
1593     + }
1594     +
1595     + default:
1596     + return -ENOIOCTLCMD;
1597     + }
1598     +}
1599     +
1600     +#ifdef CONFIG_COMPAT
1601     +
1602     +static long fbcon_decor_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) {
1603     +
1604     + struct fbcon_decor_iowrapper32 __user *wrapper = (void __user *)arg;
1605     + struct vc_data *vc = NULL;
1606     + unsigned short vc_num = 0;
1607     + unsigned char origin = 0;
1608     + compat_uptr_t data_compat = 0;
1609     + void __user *data = NULL;
1610     +
1611     + if (!access_ok(VERIFY_READ, wrapper,
1612     + sizeof(struct fbcon_decor_iowrapper32)))
1613     + return -EFAULT;
1614     +
1615     + __get_user(vc_num, &wrapper->vc);
1616     + __get_user(origin, &wrapper->origin);
1617     + __get_user(data_compat, &wrapper->data);
1618     + data = compat_ptr(data_compat);
1619     +
1620     + if (!vc_cons_allocated(vc_num))
1621     + return -EINVAL;
1622     +
1623     + vc = vc_cons[vc_num].d;
1624     +
1625     + switch (cmd) {
1626     + case FBIOCONDECOR_SETPIC32:
1627     + {
1628     + struct fb_image32 img_compat;
1629     + struct fb_image img;
1630     +
1631     + if (copy_from_user(&img_compat, (struct fb_image32 __user *)data, sizeof(struct fb_image32)))
1632     + return -EFAULT;
1633     +
1634     + fb_image_from_compat(img, img_compat);
1635     +
1636     + return fbcon_decor_ioctl_dosetpic(vc, &img, origin);
1637     + }
1638     +
1639     + case FBIOCONDECOR_SETCFG32:
1640     + {
1641     + struct vc_decor32 cfg_compat;
1642     + struct vc_decor cfg;
1643     +
1644     + if (copy_from_user(&cfg_compat, (struct vc_decor32 __user *)data, sizeof(struct vc_decor32)))
1645     + return -EFAULT;
1646     +
1647     + vc_decor_from_compat(cfg, cfg_compat);
1648     +
1649     + return fbcon_decor_ioctl_dosetcfg(vc, &cfg, origin);
1650     + }
1651     +
1652     + case FBIOCONDECOR_GETCFG32:
1653     + {
1654     + int rval;
1655     + struct vc_decor32 cfg_compat;
1656     + struct vc_decor cfg;
1657     +
1658     + if (copy_from_user(&cfg_compat, (struct vc_decor32 __user *)data, sizeof(struct vc_decor32)))
1659     + return -EFAULT;
1660     + cfg.theme = compat_ptr(cfg_compat.theme);
1661     +
1662     + rval = fbcon_decor_ioctl_dogetcfg(vc, &cfg);
1663     +
1664     + vc_decor_to_compat(cfg_compat, cfg);
1665     +
1666     + if (copy_to_user((struct vc_decor32 __user *)data, &cfg_compat, sizeof(struct vc_decor32)))
1667     + return -EFAULT;
1668     + return rval;
1669     + }
1670     +
1671     + case FBIOCONDECOR_SETSTATE32:
1672     + {
1673     + compat_uint_t state_compat = 0;
1674     + unsigned int state = 0;
1675     +
1676     + if (get_user(state_compat, (compat_uint_t __user *)data))
1677     + return -EFAULT;
1678     +
1679     + state = (unsigned int)state_compat;
1680     +
1681     + return fbcon_decor_ioctl_dosetstate(vc, state, origin);
1682     + }
1683     +
1684     + case FBIOCONDECOR_GETSTATE32:
1685     + {
1686     + compat_uint_t state_compat = 0;
1687     + unsigned int state = 0;
1688     +
1689     + fbcon_decor_ioctl_dogetstate(vc, &state);
1690     + state_compat = (compat_uint_t)state;
1691     +
1692     + return put_user(state_compat, (compat_uint_t __user *)data);
1693     + }
1694     +
1695     + default:
1696     + return -ENOIOCTLCMD;
1697     + }
1698     +}
1699     +#else
1700     + #define fbcon_decor_compat_ioctl NULL
1701     +#endif
1702     +
1703     +static struct file_operations fbcon_decor_ops = {
1704     + .owner = THIS_MODULE,
1705     + .ioctl = fbcon_decor_ioctl,
1706     + .compat_ioctl = fbcon_decor_compat_ioctl
1707     +};
1708     +
1709     +static struct miscdevice fbcon_decor_dev = {
1710     + .minor = MISC_DYNAMIC_MINOR,
1711     + .name = "fbcondecor",
1712     + .fops = &fbcon_decor_ops
1713     +};
1714     +
1715     +void fbcon_decor_reset(void)
1716     +{
1717     + struct fb_info *info;
1718     + struct vc_data *vc;
1719     + int i;
1720     +
1721     + vc = vc_cons[0].d;
1722     + info = registered_fb[0];
1723     +
1724     + for (i = 0; i < num_registered_fb; i++) {
1725     + registered_fb[i]->bgdecor.data = NULL;
1726     + registered_fb[i]->bgdecor.cmap.red = NULL;
1727     + }
1728     +
1729     + for (i = 0; i < MAX_NR_CONSOLES && vc_cons[i].d; i++) {
1730     + vc_cons[i].d->vc_decor.state = vc_cons[i].d->vc_decor.twidth =
1731     + vc_cons[i].d->vc_decor.theight = 0;
1732     + vc_cons[i].d->vc_decor.theme = NULL;
1733     + }
1734     +
1735     + return;
1736     +}
1737     +
1738     +int fbcon_decor_init(void)
1739     +{
1740     + int i;
1741     +
1742     + fbcon_decor_reset();
1743     +
1744     + if (initialized)
1745     + return 0;
1746     +
1747     + i = misc_register(&fbcon_decor_dev);
1748     + if (i) {
1749     + printk(KERN_ERR "fbcondecor: failed to register device\n");
1750     + return i;
1751     + }
1752     +
1753     + fbcon_decor_call_helper("init", 0);
1754     + initialized = 1;
1755     + return 0;
1756     +}
1757     +
1758     +int fbcon_decor_exit(void)
1759     +{
1760     + fbcon_decor_reset();
1761     + return 0;
1762     +}
1763     +
1764     +EXPORT_SYMBOL(fbcon_decor_path);
1765     diff --git a/drivers/video/console/fbcondecor.h b/drivers/video/console/fbcondecor.h
1766     new file mode 100644
1767     index 0000000..1d852dd
1768     --- /dev/null
1769     +++ b/drivers/video/console/fbcondecor.h
1770     @@ -0,0 +1,78 @@
1771     +/*
1772     + * linux/drivers/video/console/fbcondecor.h -- Framebuffer Console Decoration headers
1773     + *
1774     + * Copyright (C) 2004 Michal Januszewski <spock@gentoo.org>
1775     + *
1776     + */
1777     +
1778     +#ifndef __FBCON_DECOR_H
1779     +#define __FBCON_DECOR_H
1780     +
1781     +#ifndef _LINUX_FB_H
1782     +#include <linux/fb.h>
1783     +#endif
1784     +
1785     +/* This is needed for vc_cons in fbcmap.c */
1786     +#include <linux/vt_kern.h>
1787     +
1788     +struct fb_cursor;
1789     +struct fb_info;
1790     +struct vc_data;
1791     +
1792     +#ifdef CONFIG_FB_CON_DECOR
1793     +/* fbcondecor.c */
1794     +int fbcon_decor_init(void);
1795     +int fbcon_decor_exit(void);
1796     +int fbcon_decor_call_helper(char* cmd, unsigned short cons);
1797     +int fbcon_decor_disable(struct vc_data *vc, unsigned char redraw);
1798     +
1799     +/* cfbcondecor.c */
1800     +void fbcon_decor_putcs(struct vc_data *vc, struct fb_info *info, const unsigned short *s, int count, int yy, int xx);
1801     +void fbcon_decor_cursor(struct fb_info *info, struct fb_cursor *cursor);
1802     +void fbcon_decor_clear(struct vc_data *vc, struct fb_info *info, int sy, int sx, int height, int width);
1803     +void fbcon_decor_clear_margins(struct vc_data *vc, struct fb_info *info, int bottom_only);
1804     +void fbcon_decor_blank(struct vc_data *vc, struct fb_info *info, int blank);
1805     +void fbcon_decor_bmove_redraw(struct vc_data *vc, struct fb_info *info, int y, int sx, int dx, int width);
1806     +void fbcon_decor_copy(u8 *dst, u8 *src, int height, int width, int linebytes, int srclinesbytes, int bpp);
1807     +void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc);
1808     +
1809     +/* vt.c */
1810     +void acquire_console_sem(void);
1811     +void release_console_sem(void);
1812     +void do_unblank_screen(int entering_gfx);
1813     +
1814     +/* struct vc_data *y */
1815     +#define fbcon_decor_active_vc(y) (y->vc_decor.state && y->vc_decor.theme)
1816     +
1817     +/* struct fb_info *x, struct vc_data *y */
1818     +#define fbcon_decor_active_nores(x,y) (x->bgdecor.data && fbcon_decor_active_vc(y))
1819     +
1820     +/* struct fb_info *x, struct vc_data *y */
1821     +#define fbcon_decor_active(x,y) (fbcon_decor_active_nores(x,y) && \
1822     + x->bgdecor.width == x->var.xres && \
1823     + x->bgdecor.height == x->var.yres && \
1824     + x->bgdecor.depth == x->var.bits_per_pixel)
1825     +
1826     +
1827     +#else /* CONFIG_FB_CON_DECOR */
1828     +
1829     +static inline void fbcon_decor_putcs(struct vc_data *vc, struct fb_info *info, const unsigned short *s, int count, int yy, int xx) {}
1830     +static inline void fbcon_decor_putc(struct vc_data *vc, struct fb_info *info, int c, int ypos, int xpos) {}
1831     +static inline void fbcon_decor_cursor(struct fb_info *info, struct fb_cursor *cursor) {}
1832     +static inline void fbcon_decor_clear(struct vc_data *vc, struct fb_info *info, int sy, int sx, int height, int width) {}
1833     +static inline void fbcon_decor_clear_margins(struct vc_data *vc, struct fb_info *info, int bottom_only) {}
1834     +static inline void fbcon_decor_blank(struct vc_data *vc, struct fb_info *info, int blank) {}
1835     +static inline void fbcon_decor_bmove_redraw(struct vc_data *vc, struct fb_info *info, int y, int sx, int dx, int width) {}
1836     +static inline void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc) {}
1837     +static inline int fbcon_decor_call_helper(char* cmd, unsigned short cons) { return 0; }
1838     +static inline int fbcon_decor_init(void) { return 0; }
1839     +static inline int fbcon_decor_exit(void) { return 0; }
1840     +static inline int fbcon_decor_disable(struct vc_data *vc, unsigned char redraw) { return 0; }
1841     +
1842     +#define fbcon_decor_active_vc(y) (0)
1843     +#define fbcon_decor_active_nores(x,y) (0)
1844     +#define fbcon_decor_active(x,y) (0)
1845     +
1846     +#endif /* CONFIG_FB_CON_DECOR */
1847     +
1848     +#endif /* __FBCON_DECOR_H */
1849     diff --git a/drivers/video/fbcmap.c b/drivers/video/fbcmap.c
1850     index f53b9f1..467f921 100644
1851     --- a/drivers/video/fbcmap.c
1852     +++ b/drivers/video/fbcmap.c
1853     @@ -17,6 +17,8 @@
1854     #include <linux/slab.h>
1855     #include <linux/uaccess.h>
1856    
1857     +#include "console/fbcondecor.h"
1858     +
1859     static u16 red2[] __read_mostly = {
1860     0x0000, 0xaaaa
1861     };
1862     @@ -234,14 +236,17 @@ int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *info)
1863     if (transp)
1864     htransp = *transp++;
1865     if (info->fbops->fb_setcolreg(start++,
1866     - hred, hgreen, hblue,
1867     + hred, hgreen, hblue,
1868     htransp, info))
1869     break;
1870     }
1871     }
1872     - if (rc == 0)
1873     + if (rc == 0) {
1874     fb_copy_cmap(cmap, &info->cmap);
1875     -
1876     + if (fbcon_decor_active(info, vc_cons[fg_console].d) &&
1877     + info->fix.visual == FB_VISUAL_DIRECTCOLOR)
1878     + fbcon_decor_fix_pseudo_pal(info, vc_cons[fg_console].d);
1879     + }
1880     return rc;
1881     }
1882    
1883     diff --git a/drivers/video/fbmem.c b/drivers/video/fbmem.c
1884     index 731fce6..f0ecef4 100644
1885     --- a/drivers/video/fbmem.c
1886     +++ b/drivers/video/fbmem.c
1887     @@ -1184,15 +1184,6 @@ struct fb_fix_screeninfo32 {
1888     u16 reserved[3];
1889     };
1890    
1891     -struct fb_cmap32 {
1892     - u32 start;
1893     - u32 len;
1894     - compat_caddr_t red;
1895     - compat_caddr_t green;
1896     - compat_caddr_t blue;
1897     - compat_caddr_t transp;
1898     -};
1899     -
1900     static int fb_getput_cmap(struct fb_info *info, unsigned int cmd,
1901     unsigned long arg)
1902     {
1903     diff --git a/include/linux/console_decor.h b/include/linux/console_decor.h
1904     new file mode 100644
1905     index 0000000..04b8d80
1906     --- /dev/null
1907     +++ b/include/linux/console_decor.h
1908     @@ -0,0 +1,46 @@
1909     +#ifndef _LINUX_CONSOLE_DECOR_H_
1910     +#define _LINUX_CONSOLE_DECOR_H_ 1
1911     +
1912     +/* A structure used by the framebuffer console decorations (drivers/video/console/fbcondecor.c) */
1913     +struct vc_decor {
1914     + __u8 bg_color; /* The color that is to be treated as transparent */
1915     + __u8 state; /* Current decor state: 0 = off, 1 = on */
1916     + __u16 tx, ty; /* Top left corner coordinates of the text field */
1917     + __u16 twidth, theight; /* Width and height of the text field */
1918     + char* theme;
1919     +};
1920     +
1921     +#ifdef __KERNEL__
1922     +#ifdef CONFIG_COMPAT
1923     +#include <linux/compat.h>
1924     +
1925     +struct vc_decor32 {
1926     + __u8 bg_color; /* The color that is to be treated as transparent */
1927     + __u8 state; /* Current decor state: 0 = off, 1 = on */
1928     + __u16 tx, ty; /* Top left corner coordinates of the text field */
1929     + __u16 twidth, theight; /* Width and height of the text field */
1930     + compat_uptr_t theme;
1931     +};
1932     +
1933     +#define vc_decor_from_compat(to, from) \
1934     + (to).bg_color = (from).bg_color; \
1935     + (to).state = (from).state; \
1936     + (to).tx = (from).tx; \
1937     + (to).ty = (from).ty; \
1938     + (to).twidth = (from).twidth; \
1939     + (to).theight = (from).theight; \
1940     + (to).theme = compat_ptr((from).theme)
1941     +
1942     +#define vc_decor_to_compat(to, from) \
1943     + (to).bg_color = (from).bg_color; \
1944     + (to).state = (from).state; \
1945     + (to).tx = (from).tx; \
1946     + (to).ty = (from).ty; \
1947     + (to).twidth = (from).twidth; \
1948     + (to).theight = (from).theight; \
1949     + (to).theme = ptr_to_compat((from).theme)
1950     +
1951     +#endif /* CONFIG_COMPAT */
1952     +#endif /* __KERNEL__ */
1953     +
1954     +#endif
1955     diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
1956     index 38fe59d..8e4058b 100644
1957     --- a/include/linux/console_struct.h
1958     +++ b/include/linux/console_struct.h
1959     @@ -19,6 +19,7 @@
1960     struct vt_struct;
1961    
1962     #define NPAR 16
1963     +#include <linux/console_decor.h>
1964    
1965     struct vc_data {
1966     unsigned short vc_num; /* Console number */
1967     @@ -105,6 +106,8 @@ struct vc_data {
1968     struct vc_data **vc_display_fg; /* [!] Ptr to var holding fg console for this display */
1969     unsigned long vc_uni_pagedir;
1970     unsigned long *vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */
1971     +
1972     + struct vc_decor vc_decor;
1973     /* additional information is in vt_kern.h */
1974     };
1975    
1976     diff --git a/include/linux/fb.h b/include/linux/fb.h
1977     index 8e5a9df..7883651 100644
1978     --- a/include/linux/fb.h
1979     +++ b/include/linux/fb.h
1980     @@ -8,6 +8,25 @@
1981    
1982     #define FB_MAX 32 /* sufficient for now */
1983    
1984     +struct fbcon_decor_iowrapper
1985     +{
1986     + unsigned short vc; /* Virtual console */
1987     + unsigned char origin; /* Point of origin of the request */
1988     + void *data;
1989     +};
1990     +
1991     +#ifdef __KERNEL__
1992     +#ifdef CONFIG_COMPAT
1993     +#include <linux/compat.h>
1994     +struct fbcon_decor_iowrapper32
1995     +{
1996     + unsigned short vc; /* Virtual console */
1997     + unsigned char origin; /* Point of origin of the request */
1998     + compat_uptr_t data;
1999     +};
2000     +#endif /* CONFIG_COMPAT */
2001     +#endif /* __KERNEL__ */
2002     +
2003     /* ioctls
2004     0x46 is 'F' */
2005     #define FBIOGET_VSCREENINFO 0x4600
2006     @@ -36,6 +55,24 @@
2007     #define FBIOPUT_MODEINFO 0x4617
2008     #define FBIOGET_DISPINFO 0x4618
2009     #define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
2010     +#define FBIOCONDECOR_SETCFG _IOWR('F', 0x19, struct fbcon_decor_iowrapper)
2011     +#define FBIOCONDECOR_GETCFG _IOR('F', 0x1A, struct fbcon_decor_iowrapper)
2012     +#define FBIOCONDECOR_SETSTATE _IOWR('F', 0x1B, struct fbcon_decor_iowrapper)
2013     +#define FBIOCONDECOR_GETSTATE _IOR('F', 0x1C, struct fbcon_decor_iowrapper)
2014     +#define FBIOCONDECOR_SETPIC _IOWR('F', 0x1D, struct fbcon_decor_iowrapper)
2015     +#ifdef __KERNEL__
2016     +#ifdef CONFIG_COMPAT
2017     +#define FBIOCONDECOR_SETCFG32 _IOWR('F', 0x19, struct fbcon_decor_iowrapper32)
2018     +#define FBIOCONDECOR_GETCFG32 _IOR('F', 0x1A, struct fbcon_decor_iowrapper32)
2019     +#define FBIOCONDECOR_SETSTATE32 _IOWR('F', 0x1B, struct fbcon_decor_iowrapper32)
2020     +#define FBIOCONDECOR_GETSTATE32 _IOR('F', 0x1C, struct fbcon_decor_iowrapper32)
2021     +#define FBIOCONDECOR_SETPIC32 _IOWR('F', 0x1D, struct fbcon_decor_iowrapper32)
2022     +#endif /* CONFIG_COMPAT */
2023     +#endif /* __KERNEL__ */
2024     +
2025     +#define FBCON_DECOR_THEME_LEN 128 /* Maximum lenght of a theme name */
2026     +#define FBCON_DECOR_IO_ORIG_KERNEL 0 /* Kernel ioctl origin */
2027     +#define FBCON_DECOR_IO_ORIG_USER 1 /* User ioctl origin */
2028    
2029     #define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
2030     #define FB_TYPE_PLANES 1 /* Non interleaved planes */
2031     @@ -280,6 +317,28 @@ struct fb_cmap {
2032     __u16 *transp; /* transparency, can be NULL */
2033     };
2034    
2035     +#ifdef __KERNEL__
2036     +#ifdef CONFIG_COMPAT
2037     +struct fb_cmap32 {
2038     + __u32 start;
2039     + __u32 len; /* Number of entries */
2040     + compat_uptr_t red; /* Red values */
2041     + compat_uptr_t green;
2042     + compat_uptr_t blue;
2043     + compat_uptr_t transp; /* transparency, can be NULL */
2044     +};
2045     +
2046     +#define fb_cmap_from_compat(to, from) \
2047     + (to).start = (from).start; \
2048     + (to).len = (from).len; \
2049     + (to).red = compat_ptr((from).red); \
2050     + (to).green = compat_ptr((from).green); \
2051     + (to).blue = compat_ptr((from).blue); \
2052     + (to).transp = compat_ptr((from).transp)
2053     +
2054     +#endif /* CONFIG_COMPAT */
2055     +#endif /* __KERNEL__ */
2056     +
2057     struct fb_con2fbmap {
2058     __u32 console;
2059     __u32 framebuffer;
2060     @@ -361,6 +420,34 @@ struct fb_image {
2061     struct fb_cmap cmap; /* color map info */
2062     };
2063    
2064     +#ifdef __KERNEL__
2065     +#ifdef CONFIG_COMPAT
2066     +struct fb_image32 {
2067     + __u32 dx; /* Where to place image */
2068     + __u32 dy;
2069     + __u32 width; /* Size of image */
2070     + __u32 height;
2071     + __u32 fg_color; /* Only used when a mono bitmap */
2072     + __u32 bg_color;
2073     + __u8 depth; /* Depth of the image */
2074     + const compat_uptr_t data; /* Pointer to image data */
2075     + struct fb_cmap32 cmap; /* color map info */
2076     +};
2077     +
2078     +#define fb_image_from_compat(to, from) \
2079     + (to).dx = (from).dx; \
2080     + (to).dy = (from).dy; \
2081     + (to).width = (from).width; \
2082     + (to).height = (from).height; \
2083     + (to).fg_color = (from).fg_color; \
2084     + (to).bg_color = (from).bg_color; \
2085     + (to).depth = (from).depth; \
2086     + (to).data = compat_ptr((from).data); \
2087     + fb_cmap_from_compat((to).cmap, (from).cmap)
2088     +
2089     +#endif /* CONFIG_COMPAT */
2090     +#endif /* __KERNEL__ */
2091     +
2092     /*
2093     * hardware cursor control
2094     */
2095     @@ -856,6 +943,9 @@ struct fb_info {
2096     #define FBINFO_STATE_SUSPENDED 1
2097     u32 state; /* Hardware state i.e suspend */
2098     void *fbcon_par; /* fbcon use-only private area */
2099     +
2100     + struct fb_image bgdecor;
2101     +
2102     /* From here on everything is device dependent */
2103     void *par;
2104     /* we need the PCI or similiar aperture base/size not
2105     diff --git a/kernel/sysctl.c b/kernel/sysctl.c
2106     index d24f761..a47ce49 100644
2107     --- a/kernel/sysctl.c
2108     +++ b/kernel/sysctl.c
2109     @@ -130,6 +130,10 @@ static int min_percpu_pagelist_fract = 8;
2110    
2111     static int ngroups_max = NGROUPS_MAX;
2112    
2113     +#ifdef CONFIG_FB_CON_DECOR
2114     +extern char fbcon_decor_path[];
2115     +#endif
2116     +
2117     #ifdef CONFIG_SPARC
2118     #include <asm/system.h>
2119     #endif
2120     @@ -245,6 +249,16 @@ static struct ctl_table root_table[] = {
2121     .mode = 0555,
2122     .child = dev_table,
2123     },
2124     +#ifdef CONFIG_FB_CON_DECOR
2125     + {
2126     + .procname = "fbcondecor",
2127     + .data = &fbcon_decor_path,
2128     + .maxlen = KMOD_PATH_LEN,
2129     + .mode = 0644,
2130     + .proc_handler = &proc_dostring,
2131     + },
2132     +#endif
2133     +
2134     /*
2135     * NOTE: do not add new entries to this table unless you have read
2136     * Documentation/sysctl/ctl_unnumbered.txt