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fbcondecor-6.x.patch
From 013b0a05fb674a0de1986f10af15ee27789e367b Mon Sep 17 00:00:00 2001
From: Doridian <git@doridian.net>
Date: Sat, 2 Aug 2025 11:21:22 -0700
Subject: [PATCH] Port fbcondecor patchset to 6.16
---
Documentation/fb/fbcondecor.txt | 207 ++++++++++
drivers/Makefile | 9 +-
drivers/video/console/Kconfig | 13 +
drivers/video/console/Makefile | 2 +
drivers/video/console/cfbcondecor.c | 488 ++++++++++++++++++++++++
drivers/video/console/fbcondecor.c | 551 +++++++++++++++++++++++++++
drivers/video/console/fbcondecor.h | 71 ++++
drivers/video/fbdev/core/bitblit.c | 20 +-
drivers/video/fbdev/core/fb_chrdev.c | 9 -
drivers/video/fbdev/core/fbcmap.c | 9 +-
drivers/video/fbdev/core/fbcon.c | 163 +++++++-
include/linux/console_decor.h | 46 +++
include/linux/console_struct.h | 2 +
include/linux/fb.h | 31 ++
include/uapi/linux/fb.h | 59 +++
kernel/sysctl.c | 14 +
16 files changed, 1654 insertions(+), 40 deletions(-)
create mode 100644 Documentation/fb/fbcondecor.txt
create mode 100644 drivers/video/console/cfbcondecor.c
create mode 100644 drivers/video/console/fbcondecor.c
create mode 100644 drivers/video/console/fbcondecor.h
create mode 100644 include/linux/console_decor.h
diff --git a/Documentation/fb/fbcondecor.txt b/Documentation/fb/fbcondecor.txt
new file mode 100644
index 00000000000000..637209e11ccd90
--- /dev/null
+++ b/Documentation/fb/fbcondecor.txt
@@ -0,0 +1,207 @@
+What is it?
+-----------
+
+The framebuffer decorations are a kernel feature which allows displaying a
+background picture on selected consoles.
+
+What do I need to get it to work?
+---------------------------------
+
+To get fbcondecor up-and-running you will have to:
+ 1) get a copy of splashutils [1] or a similar program
+ 2) get some fbcondecor themes
+ 3) build the kernel helper program
+ 4) build your kernel with the FB_CON_DECOR option enabled.
+
+To get fbcondecor operational right after fbcon initialization is finished, you
+will have to include a theme and the kernel helper into your initramfs image.
+Please refer to splashutils documentation for instructions on how to do that.
+
+[1] The splashutils package can be downloaded from:
+ https://github.com/alanhaggai/fbsplash
+
+The userspace helper
+--------------------
+
+The userspace fbcondecor helper (by default: /sbin/fbcondecor_helper) is called by the
+kernel whenever an important event occurs and the kernel needs some kind of
+job to be carried out. Important events include console switches and video
+mode switches (the kernel requests background images and configuration
+parameters for the current console). The fbcondecor helper must be accessible at
+all times. If it's not, fbcondecor will be switched off automatically.
+
+It's possible to set path to the fbcondecor helper by writing it to
+/proc/sys/kernel/fbcondecor.
+
+*****************************************************************************
+
+The information below is mostly technical stuff. There's probably no need to
+read it unless you plan to develop a userspace helper.
+
+The fbcondecor protocol
+-----------------------
+
+The fbcondecor protocol defines a communication interface between the kernel and
+the userspace fbcondecor helper.
+
+The kernel side is responsible for:
+
+ * rendering console text, using an image as a background (instead of a
+ standard solid color fbcon uses),
+ * accepting commands from the user via ioctls on the fbcondecor device,
+ * calling the userspace helper to set things up as soon as the fb subsystem
+ is initialized.
+
+The userspace helper is responsible for everything else, including parsing
+configuration files, decompressing the image files whenever the kernel needs
+it, and communicating with the kernel if necessary.
+
+The fbcondecor protocol specifies how communication is done in both ways:
+kernel->userspace and userspace->helper.
+
+Kernel -> Userspace
+-------------------
+
+The kernel communicates with the userspace helper by calling it and specifying
+the task to be done in a series of arguments.
+
+The arguments follow the pattern:
+<fbcondecor protocol version> <command> <parameters>
+
+All commands defined in fbcondecor protocol v2 have the following parameters:
+ virtual console
+ framebuffer number
+ theme
+
+Fbcondecor protocol v1 specified an additional 'fbcondecor mode' after the
+framebuffer number. Fbcondecor protocol v1 is deprecated and should not be used.
+
+Fbcondecor protocol v2 specifies the following commands:
+
+getpic
+------
+ The kernel issues this command to request image data. It's up to the
+ userspace helper to find a background image appropriate for the specified
+ theme and the current resolution. The userspace helper should respond by
+ issuing the FBIOCONDECOR_SETPIC ioctl.
+
+init
+----
+ The kernel issues this command after the fbcondecor device is created and
+ the fbcondecor interface is initialized. Upon receiving 'init', the userspace
+ helper should parse the kernel command line (/proc/cmdline) or otherwise
+ decide whether fbcondecor is to be activated.
+
+ To activate fbcondecor on the first console the helper should issue the
+ FBIOCONDECOR_SETCFG, FBIOCONDECOR_SETPIC and FBIOCONDECOR_SETSTATE commands,
+ in the above-mentioned order.
+
+ When the userspace helper is called in an early phase of the boot process
+ (right after the initialization of fbcon), no filesystems will be mounted.
+ The helper program should mount sysfs and then create the appropriate
+ framebuffer, fbcondecor and tty0 devices (if they don't already exist) to get
+ current display settings and to be able to communicate with the kernel side.
+ It should probably also mount the procfs to be able to parse the kernel
+ command line parameters.
+
+ Note that the console sem is not held when the kernel calls fbcondecor_helper
+ with the 'init' command. The fbcondecor helper should perform all ioctls with
+ origin set to FBCON_DECOR_IO_ORIG_USER.
+
+modechange
+----------
+ The kernel issues this command on a mode change. The helper's response should
+ be similar to the response to the 'init' command. Note that this time the
+ console sem is held and all ioctls must be performed with origin set to
+ FBCON_DECOR_IO_ORIG_KERNEL.
+
+
+Userspace -> Kernel
+-------------------
+
+Userspace programs can communicate with fbcondecor via ioctls on the
+fbcondecor device. These ioctls are to be used by both the userspace helper
+(called only by the kernel) and userspace configuration tools (run by the users).
+
+The fbcondecor helper should set the origin field to FBCON_DECOR_IO_ORIG_KERNEL
+when doing the appropriate ioctls. All userspace configuration tools should
+use FBCON_DECOR_IO_ORIG_USER. Failure to set the appropriate value in the origin
+field when performing ioctls from the kernel helper will most likely result
+in a console deadlock.
+
+FBCON_DECOR_IO_ORIG_KERNEL instructs fbcondecor not to try to acquire the console
+semaphore. Not surprisingly, FBCON_DECOR_IO_ORIG_USER instructs it to acquire
+the console sem.
+
+The framebuffer console decoration provides the following ioctls (all defined in
+linux/fb.h):
+
+FBIOCONDECOR_SETPIC
+description: loads a background picture for a virtual console
+argument: struct fbcon_decor_iowrapper*; data: struct fb_image*
+notes:
+If called for consoles other than the current foreground one, the picture data
+will be ignored.
+
+If the current virtual console is running in a 8-bpp mode, the cmap substruct
+of fb_image has to be filled appropriately: start should be set to 16 (first
+16 colors are reserved for fbcon), len to a value <= 240 and red, green and
+blue should point to valid cmap data. The transp field is ingored. The fields
+dx, dy, bg_color, fg_color in fb_image are ignored as well.
+
+FBIOCONDECOR_SETCFG
+description: sets the fbcondecor config for a virtual console
+argument: struct fbcon_decor_iowrapper*; data: struct vc_decor*
+notes: The structure has to be filled with valid data.
+
+FBIOCONDECOR_GETCFG
+description: gets the fbcondecor config for a virtual console
+argument: struct fbcon_decor_iowrapper*; data: struct vc_decor*
+
+FBIOCONDECOR_SETSTATE
+description: sets the fbcondecor state for a virtual console
+argument: struct fbcon_decor_iowrapper*; data: unsigned int*
+ values: 0 = disabled, 1 = enabled.
+
+FBIOCONDECOR_GETSTATE
+description: gets the fbcondecor state for a virtual console
+argument: struct fbcon_decor_iowrapper*; data: unsigned int*
+ values: as in FBIOCONDECOR_SETSTATE
+
+Info on used structures:
+
+Definition of struct vc_decor can be found in linux/console_decor.h. It's
+heavily commented. Note that the 'theme' field should point to a string
+no longer than FBCON_DECOR_THEME_LEN. When FBIOCONDECOR_GETCFG call is
+performed, the theme field should point to a char buffer of length
+FBCON_DECOR_THEME_LEN.
+
+Definition of struct fbcon_decor_iowrapper can be found in linux/fb.h.
+The fields in this struct have the following meaning:
+
+vc:
+Virtual console number.
+
+origin:
+Specifies if the ioctl is performed as a response to a kernel request. The
+fbcondecor helper should set this field to FBCON_DECOR_IO_ORIG_KERNEL, userspace
+programs should set it to FBCON_DECOR_IO_ORIG_USER. This field is necessary to
+avoid console semaphore deadlocks.
+
+data:
+Pointer to a data structure appropriate for the performed ioctl. Type of
+the data struct is specified in the ioctls description.
+
+*****************************************************************************
+
+Credit
+------
+
+Original 'bootsplash' project & implementation by:
+ Volker Poplawski <volker@poplawski.de>, Stefan Reinauer <stepan@suse.de>,
+ Steffen Winterfeldt <snwint@suse.de>, Michael Schroeder <mls@suse.de>,
+ Ken Wimer <wimer@suse.de>.
+
+Fbcondecor, fbcondecor protocol design, current implementation & docs by:
+ Michal Januszewski <michalj+fbcondecor@gmail.com>
+
diff --git a/drivers/Makefile b/drivers/Makefile
index b5749cf67044ce..d57aaf6f66452a 100644
--- a/drivers/Makefile
+++ b/drivers/Makefile
@@ -24,6 +24,10 @@ obj-y += pci/
obj-$(CONFIG_PARISC) += parisc/
obj-$(CONFIG_RAPIDIO) += rapidio/
+# tty/ comes before char/ so that the VT console is the boot-time
+# default.
+obj-y += tty/
+obj-y += char/
obj-y += video/
obj-y += idle/
@@ -56,11 +60,6 @@ obj-$(CONFIG_REGULATOR) += regulator/
# reset controllers early, since gpu drivers might rely on them to initialize
obj-$(CONFIG_RESET_CONTROLLER) += reset/
-# tty/ comes before char/ so that the VT console is the boot-time
-# default.
-obj-y += tty/
-obj-y += char/
-
# iommu/ comes before gpu as gpu are using iommu controllers
obj-y += iommu/
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 12f54480f57f89..4b8b8034beb4ee 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -137,6 +137,19 @@ config FRAMEBUFFER_CONSOLE_DEFERRED_TAKEOVER
by the firmware in place, rather then replacing the contents with a
black screen as soon as fbcon loads.
+config FB_CON_DECOR
+ bool "Support for the Framebuffer Console Decorations"
+ depends on FRAMEBUFFER_CONSOLE=y && !FB_TILEBLITTING
+ default n
+ help
+ This option enables support for framebuffer console decorations which
+ makes it possible to display images in the background of the system
+ consoles. Note that userspace utilities are necessary in order to take
+ advantage of these features. Refer to Documentation/fb/fbcondecor.txt
+ for more information.
+
+ If unsure, say N.
+
config STI_CONSOLE
bool "STI text console"
depends on PARISC && HAS_IOMEM
diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile
index fd79016a0d95b4..35ba21c61ad4c1 100644
--- a/drivers/video/console/Makefile
+++ b/drivers/video/console/Makefile
@@ -8,3 +8,5 @@ obj-$(CONFIG_SGI_NEWPORT_CONSOLE) += newport_con.o
obj-$(CONFIG_STI_CONSOLE) += sticon.o
obj-$(CONFIG_VGA_CONSOLE) += vgacon.o
obj-$(CONFIG_MDA_CONSOLE) += mdacon.o
+
+obj-$(CONFIG_FB_CON_DECOR) += fbcondecor.o cfbcondecor.o
diff --git a/drivers/video/console/cfbcondecor.c b/drivers/video/console/cfbcondecor.c
new file mode 100644
index 00000000000000..ea1c76cd800a78
--- /dev/null
+++ b/drivers/video/console/cfbcondecor.c
@@ -0,0 +1,488 @@
+/*
+ * linux/drivers/video/cfbcon_decor.c -- Framebuffer decor render functions
+ *
+ * Copyright (C) 2004 Michal Januszewski <michalj+fbcondecor@gmail.com>
+ *
+ * Code based upon "Bootdecor" (C) 2001-2003
+ * Volker Poplawski <volker@poplawski.de>,
+ * Stefan Reinauer <stepan@suse.de>,
+ * Steffen Winterfeldt <snwint@suse.de>,
+ * Michael Schroeder <mls@suse.de>,
+ * Ken Wimer <wimer@suse.de>.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ */
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/fb.h>
+#include <linux/selection.h>
+#include <linux/slab.h>
+#include <linux/vt_kern.h>
+#include <asm/irq.h>
+
+#include "../fbdev/core/fbcon.h"
+#include "../drm/drm_fb_helper.h"
+#include "fbcondecor.h"
+
+#ifndef CONFIG_DRM_FBDEV_EMULATION
+static inline void drm_fb_helper_damage_area(struct fb_info *info, u32 x, u32 y, u32 width, u32 height) { }
+#endif
+
+#define parse_pixel(shift, bpp, type) \
+ do { \
+ if (d & (0x80 >> (shift))) \
+ dd2[(shift)] = fgx; \
+ else \
+ dd2[(shift)] = transparent ? *(type *)decor_src : bgx; \
+ decor_src += (bpp); \
+ } while (0) \
+
+extern int get_color(struct vc_data *vc, struct fb_info *info,
+ u16 c, int is_fg);
+
+void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc)
+{
+ int i, j, k;
+ int minlen = min(min(info->var.red.length, info->var.green.length),
+ info->var.blue.length);
+ u32 col;
+
+ for (j = i = 0; i < 16; i++) {
+ k = color_table[i];
+
+ col = ((vc->vc_palette[j++] >> (8-minlen))
+ << info->var.red.offset);
+ col |= ((vc->vc_palette[j++] >> (8-minlen))
+ << info->var.green.offset);
+ col |= ((vc->vc_palette[j++] >> (8-minlen))
+ << info->var.blue.offset);
+ ((u32 *)info->pseudo_palette)[k] = col;
+ }
+}
+
+static void fbcon_decor_renderc(struct fb_info *info, int ypos, int xpos, int height,
+ int width, u8 *src, u32 fgx, u32 bgx, u8 transparent)
+{
+ unsigned int x, y;
+ u32 dd;
+ int bytespp = ((info->var.bits_per_pixel + 7) >> 3);
+ unsigned int d = ypos * info->fix.line_length + xpos * bytespp;
+ unsigned int ds = (ypos * info->var.xres + xpos) * bytespp;
+ u16 dd2[4];
+
+ u8 *decor_src = (u8 *)(info->bgdecor.data + ds);
+ u8 *dst = (u8 *)(info->screen_base + d);
+
+ if ((ypos + height) > info->var.yres || (xpos + width) > info->var.xres)
+ return;
+
+ for (y = 0; y < height; y++) {
+ switch (info->var.bits_per_pixel) {
+
+ case 32:
+ for (x = 0; x < width; x++) {
+
+ if ((x & 7) == 0)
+ d = *src++;
+ if (d & 0x80)
+ dd = fgx;
+ else
+ dd = transparent ?
+ *(u32 *)decor_src : bgx;
+
+ d <<= 1;
+ decor_src += 4;
+ fb_writel(dd, dst);
+ dst += 4;
+ }
+ break;
+ case 24:
+ for (x = 0; x < width; x++) {
+
+ if ((x & 7) == 0)
+ d = *src++;
+ if (d & 0x80)
+ dd = fgx;
+ else
+ dd = transparent ?
+ (*(u32 *)decor_src & 0xffffff) : bgx;
+
+ d <<= 1;
+ decor_src += 3;
+#ifdef __LITTLE_ENDIAN
+ fb_writew(dd & 0xffff, dst);
+ dst += 2;
+ fb_writeb((dd >> 16), dst);
+#else
+ fb_writew(dd >> 8, dst);
+ dst += 2;
+ fb_writeb(dd & 0xff, dst);
+#endif
+ dst++;
+ }
+ break;
+ case 16:
+ for (x = 0; x < width; x += 2) {
+ if ((x & 7) == 0)
+ d = *src++;
+
+ parse_pixel(0, 2, u16);
+ parse_pixel(1, 2, u16);
+#ifdef __LITTLE_ENDIAN
+ dd = dd2[0] | (dd2[1] << 16);
+#else
+ dd = dd2[1] | (dd2[0] << 16);
+#endif
+ d <<= 2;
+ fb_writel(dd, dst);
+ dst += 4;
+ }
+ break;
+
+ case 8:
+ for (x = 0; x < width; x += 4) {
+ if ((x & 7) == 0)
+ d = *src++;
+
+ parse_pixel(0, 1, u8);
+ parse_pixel(1, 1, u8);
+ parse_pixel(2, 1, u8);
+ parse_pixel(3, 1, u8);
+
+#ifdef __LITTLE_ENDIAN
+ dd = dd2[0] | (dd2[1] << 8) | (dd2[2] << 16) | (dd2[3] << 24);
+#else
+ dd = dd2[3] | (dd2[2] << 8) | (dd2[1] << 16) | (dd2[0] << 24);
+#endif
+ d <<= 4;
+ fb_writel(dd, dst);
+ dst += 4;
+ }
+ }
+
+ dst += info->fix.line_length - width * bytespp;
+ decor_src += (info->var.xres - width) * bytespp;
+ }
+}
+
+#define cc2cx(a) \
+ ((info->fix.visual == FB_VISUAL_TRUECOLOR || \
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR) ? \
+ ((u32 *)info->pseudo_palette)[a] : a)
+
+void fbcon_decor_putcs(struct vc_data *vc, struct fb_info *info,
+ const unsigned short *s, int count, int yy, int xx)
+{
+ unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
+ struct fbcon_ops *ops = info->fbcon_par;
+ int fg_color, bg_color, transparent;
+ u8 *src;
+ u32 bgx, fgx;
+ u16 c = scr_readw(s);
+
+ fg_color = get_color(vc, info, c, 1);
+ bg_color = get_color(vc, info, c, 0);
+
+ /* Don't paint the background image if console is blanked */
+ transparent = ops->blank_state ? 0 :
+ (vc->vc_decor.bg_color == bg_color);
+
+ xx = xx * vc->vc_font.width + vc->vc_decor.tx;
+ yy = yy * vc->vc_font.height + vc->vc_decor.ty;
+
+ int sx = xx;
+ int sy = yy;
+
+ fgx = cc2cx(fg_color);
+ bgx = cc2cx(bg_color);
+
+ while (count--) {
+ c = scr_readw(s++);
+ src = vc->vc_font.data + (c & charmask) * vc->vc_font.height *
+ ((vc->vc_font.width + 7) >> 3);
+
+ fbcon_decor_renderc(info, yy, xx, vc->vc_font.height,
+ vc->vc_font.width, src, fgx, bgx, transparent);
+ xx += vc->vc_font.width;
+ }
+
+ drm_fb_helper_damage_area(info, sx, sy, xx - sx, vc->vc_font.height);
+}
+
+void fbcon_decor_cursor(struct fb_info *info, struct fb_cursor *cursor)
+{
+ int i;
+ unsigned int dsize, s_pitch;
+ struct fbcon_ops *ops = info->fbcon_par;
+ struct vc_data *vc;
+ u8 *src;
+
+ /* we really don't need any cursors while the console is blanked */
+ if (info->state != FBINFO_STATE_RUNNING || ops->blank_state)
+ return;
+
+ vc = vc_cons[ops->currcon].d;
+
+ src = kmalloc(64 + sizeof(struct fb_image), GFP_ATOMIC);
+ if (!src)
+ return;
+
+ s_pitch = (cursor->image.width + 7) >> 3;
+ dsize = s_pitch * cursor->image.height;
+ if (cursor->enable) {
+ switch (cursor->rop) {
+ case ROP_XOR:
+ for (i = 0; i < dsize; i++)
+ src[i] = cursor->image.data[i] ^ cursor->mask[i];
+ break;
+ case ROP_COPY:
+ default:
+ for (i = 0; i < dsize; i++)
+ src[i] = cursor->image.data[i] & cursor->mask[i];
+ break;
+ }
+ } else
+ memcpy(src, cursor->image.data, dsize);
+
+ fbcon_decor_renderc(info,
+ cursor->image.dy + vc->vc_decor.ty,
+ cursor->image.dx + vc->vc_decor.tx,
+ cursor->image.height,
+ cursor->image.width,
+ (u8 *)src,
+ cc2cx(cursor->image.fg_color),
+ cc2cx(cursor->image.bg_color),
+ cursor->image.bg_color == vc->vc_decor.bg_color);
+
+ drm_fb_helper_damage_area(
+ info,
+ cursor->image.dx + vc->vc_decor.tx,
+ cursor->image.dy + vc->vc_decor.ty,
+ cursor->image.width,
+ cursor->image.height);
+
+ kfree(src);
+}
+
+static void decorset(struct fb_info *info, int sy, int sx, int height, int width, u32 bgx)
+{
+ int bpp = info->var.bits_per_pixel;
+ int dstbytes = info->fix.line_length;
+ u8 *dst = (u8 *)(info->screen_base + sy * info->fix.line_length +
+ sx * ((info->var.bits_per_pixel + 7) >> 3));
+
+ int i;
+
+ if (bpp == 8)
+ bgx |= bgx << 8;
+ if (bpp == 16 || bpp == 8)
+ bgx |= bgx << 16;
+
+ while (height-- > 0) {
+ u8 *p = dst;
+
+ switch (bpp) {
+
+ case 32:
+ for (i = 0; i < width; i++) {
+ fb_writel(bgx, p); p += 4;
+ }
+ break;
+ case 24:
+ for (i = 0; i < width; i++) {
+#ifdef __LITTLE_ENDIAN
+ fb_writew((bgx & 0xffff), (u16 *)p); p += 2;
+ fb_writeb((bgx >> 16), p++);
+#else
+ fb_writew((bgx >> 8), (u16 *)p); p += 2;
+ fb_writeb((bgx & 0xff), p++);
+#endif
+ }
+ break;
+ case 16:
+ for (i = 0; i < width/4; i++) {
+ fb_writel(bgx, p); p += 4;
+ fb_writel(bgx, p); p += 4;
+ }
+ if (width & 2) {
+ fb_writel(bgx, p); p += 4;
+ }
+ if (width & 1)
+ fb_writew(bgx, (u16 *)p);
+ break;
+ case 8:
+ for (i = 0; i < width/4; i++) {
+ fb_writel(bgx, p); p += 4;
+ }
+
+ if (width & 2) {
+ fb_writew(bgx, p); p += 2;
+ }
+ if (width & 1)
+ fb_writeb(bgx, (u8 *)p);
+ break;
+
+ }
+ dst += dstbytes;
+ }
+
+ drm_fb_helper_damage_area(info, sx, sy, width, height);
+}
+
+static void decorfill(struct fb_info *info, int sy, int sx, int height,
+ int width)
+{
+ int bytespp = ((info->var.bits_per_pixel + 7) >> 3);
+ int d = sy * info->fix.line_length + sx * bytespp;
+ int ds = (sy * info->var.xres + sx) * bytespp;
+
+ u8 *dst = (u8 *)(info->screen_base + d);
+ u8 *src = (u8 *)(info->bgdecor.data + ds);
+
+ int i;
+
+ while (height-- > 0) {
+ u32 *p = (u32 *)dst;
+ u32 *q = (u32 *)src;
+
+ switch (info->var.bits_per_pixel) {
+
+ case 32:
+ for (i = 0; i < width; i++)
+ fb_writel(*q++, p++);
+ break;
+ case 24:
+ for (i = 0; i < (width * 3 / 4); i++)
+ fb_writel(*q++, p++);
+ if ((width * 3) % 4) {
+ if (width & 2) {
+ fb_writeb(*(u8 *)q, (u8 *)p);
+ } else if (width & 1) {
+ fb_writew(*(u16 *)q, (u16 *)p);
+ fb_writeb(*(u8 *)((u16 *)q + 1),
+ (u8 *)((u16 *)p + 2));
+ }
+ }
+ break;
+ case 16:
+ for (i = 0; i < width/4; i++) {
+ fb_writel(*q++, p++);
+ fb_writel(*q++, p++);
+ }
+ if (width & 2)
+ fb_writel(*q++, p++);
+ if (width & 1)
+ fb_writew(*(u16 *)q, (u16 *)p);
+ break;
+ case 8:
+ for (i = 0; i < width/4; i++)
+ fb_writel(*q++, p++);
+
+ if (width & 2) {
+ fb_writew(*(u16 *)q, (u16 *)p);
+ q = (u32 *) ((u16 *)q + 1);
+ p = (u32 *) ((u16 *)p + 1);
+ }
+ if (width & 1)
+ fb_writeb(*(u8 *)q, (u8 *)p);
+ break;
+ }
+
+ dst += info->fix.line_length;
+ src += info->var.xres * bytespp;
+ }
+
+ drm_fb_helper_damage_area(info, sx, sy, width, height);
+}
+
+void fbcon_decor_clear(struct vc_data *vc, struct fb_info *info, int sy, int sx,
+ int height, int width)
+{
+ int bgshift = (vc->vc_hi_font_mask) ? 13 : 12;
+ struct fbcon_ops *ops = info->fbcon_par;
+ int transparent, bg_color = attr_bgcol(bgshift, vc->vc_video_erase_char);
+
+ transparent = (vc->vc_decor.bg_color == bg_color);
+ sy = sy * vc->vc_font.height + vc->vc_decor.ty;
+ sx = sx * vc->vc_font.width + vc->vc_decor.tx;
+ height *= vc->vc_font.height;
+ width *= vc->vc_font.width;
+
+ /* Don't paint the background image if console is blanked */
+ if (transparent && !ops->blank_state) {
+ decorfill(info, sy, sx, height, width);
+ } else {
+ decorset(info, sy, sx, height, width, cc2cx(bg_color));
+ }
+}
+
+void fbcon_decor_clear_margins(struct vc_data *vc, struct fb_info *info,
+ int bottom_only)
+{
+ unsigned int tw = vc->vc_cols*vc->vc_font.width;
+ unsigned int th = vc->vc_rows*vc->vc_font.height;
+
+ if (!bottom_only) {
+ /* top margin */
+ decorfill(info, 0, 0, vc->vc_decor.ty, info->var.xres);
+ /* left margin */
+ decorfill(info, vc->vc_decor.ty, 0, th, vc->vc_decor.tx);
+ /* right margin */
+ decorfill(info, vc->vc_decor.ty, vc->vc_decor.tx + tw, th,
+ info->var.xres - vc->vc_decor.tx - tw);
+ }
+ decorfill(info, vc->vc_decor.ty + th, 0,
+ info->var.yres - vc->vc_decor.ty - th, info->var.xres);
+}
+
+void fbcon_decor_bmove_redraw(struct vc_data *vc, struct fb_info *info, int y,
+ int sx, int dx, int width)
+{
+ u16 *d = (u16 *) (vc->vc_origin + vc->vc_size_row * y + dx * 2);
+ u16 *s = d + (dx - sx);
+ u16 *start = d;
+ u16 *ls = d;
+ u16 *le = d + width;
+ u16 c;
+ int x = dx;
+ u16 attr = 1;
+
+ do {
+ c = scr_readw(d);
+ if (attr != (c & 0xff00)) {
+ attr = c & 0xff00;
+ if (d > start) {
+ fbcon_decor_putcs(vc, info, start, d - start, y, x);
+ x += d - start;
+ start = d;
+ }
+ }
+ if (s >= ls && s < le && c == scr_readw(s)) {
+ if (d > start) {
+ fbcon_decor_putcs(vc, info, start, d - start, y, x);
+ x += d - start + 1;
+ start = d + 1;
+ } else {
+ x++;
+ start++;
+ }
+ }
+ s++;
+ d++;
+ } while (d < le);
+ if (d > start)
+ fbcon_decor_putcs(vc, info, start, d - start, y, x);
+}
+
+void fbcon_decor_blank(struct vc_data *vc, struct fb_info *info, int blank)
+{
+ if (blank) {
+ decorset(info, 0, 0, info->var.yres, info->var.xres, 0);
+ } else {
+ update_screen(vc);
+ fbcon_decor_clear_margins(vc, info, 0);
+ }
+}
+
diff --git a/drivers/video/console/fbcondecor.c b/drivers/video/console/fbcondecor.c
new file mode 100644
index 00000000000000..d70e064e226158
--- /dev/null
+++ b/drivers/video/console/fbcondecor.c
@@ -0,0 +1,551 @@
+/*
+ * linux/drivers/video/console/fbcondecor.c -- Framebuffer console decorations
+ *
+ * Copyright (C) 2004-2009 Michal Januszewski <michalj+fbcondecor@gmail.com>
+ *
+ * Code based upon "Bootsplash" (C) 2001-2003
+ * Volker Poplawski <volker@poplawski.de>,
+ * Stefan Reinauer <stepan@suse.de>,
+ * Steffen Winterfeldt <snwint@suse.de>,
+ * Michael Schroeder <mls@suse.de>,
+ * Ken Wimer <wimer@suse.de>.
+ *
+ * Compat ioctl support by Thorsten Klein <TK@Thorsten-Klein.de>.
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file COPYING in the main directory of this archive for
+ * more details.
+ *
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/types.h>
+#include <linux/fb.h>
+#include <linux/vt_kern.h>
+#include <linux/vmalloc.h>
+#include <linux/unistd.h>
+#include <linux/syscalls.h>
+#include <linux/init.h>
+#include <linux/proc_fs.h>
+#include <linux/workqueue.h>
+#include <linux/kmod.h>
+#include <linux/miscdevice.h>
+#include <linux/device.h>
+#include <linux/fs.h>
+#include <linux/compat.h>
+#include <linux/console.h>
+#include <linux/binfmts.h>
+#include <linux/uaccess.h>
+#include <asm/irq.h>
+
+#include "../fbdev/core/fbcon.h"
+#include "../fbdev/core/fb_internal.h"
+
+#include "fbcondecor.h"
+
+extern signed char con2fb_map[];
+static int fbcon_decor_enable(struct vc_data *vc);
+
+static int initialized;
+
+char fbcon_decor_path[KMOD_PATH_LEN] = "/sbin/fbcondecor_helper";
+EXPORT_SYMBOL(fbcon_decor_path);
+
+int fbcon_decor_call_helper(char *cmd, unsigned short vc)
+{
+ char *envp[] = {
+ "HOME=/",
+ "PATH=/sbin:/bin",
+ NULL
+ };
+
+ char tfb[5];
+ char tcons[5];
+ unsigned char fb = (int) con2fb_map[vc];
+
+ char *argv[] = {
+ fbcon_decor_path,
+ "2",
+ cmd,
+ tcons,
+ tfb,
+ vc_cons[vc].d->vc_decor.theme,
+ NULL
+ };
+
+ snprintf(tfb, 5, "%d", fb);
+ snprintf(tcons, 5, "%d", vc);
+
+ return call_usermodehelper(fbcon_decor_path, argv, envp, UMH_WAIT_EXEC);
+}
+
+/* Disables fbcondecor on a virtual console; called with console sem held. */
+int fbcon_decor_disable(struct vc_data *vc, unsigned char redraw)
+{
+ struct fb_info *info;
+
+ if (!vc->vc_decor.state)
+ return -EINVAL;
+
+ info = registered_fb[(int) con2fb_map[vc->vc_num]];
+
+ if (info == NULL)
+ return -EINVAL;
+
+ vc->vc_decor.state = 0;
+ vc_resize(vc, info->var.xres / vc->vc_font.width,
+ info->var.yres / vc->vc_font.height);
+
+ if (fg_console == vc->vc_num && redraw) {
+ redraw_screen(vc, 0);
+ update_region(vc, vc->vc_origin +
+ vc->vc_size_row * vc->vc_top,
+ vc->vc_size_row * (vc->vc_bottom - vc->vc_top) / 2);
+ }
+
+ printk(KERN_INFO "fbcondecor: switched decor state to 'off' on console %d\n",
+ vc->vc_num);
+
+ return 0;
+}
+
+/* Enables fbcondecor on a virtual console; called with console sem held. */
+static int fbcon_decor_enable(struct vc_data *vc)
+{
+ struct fb_info *info;
+
+ info = registered_fb[(int) con2fb_map[vc->vc_num]];
+
+ if (vc->vc_decor.twidth == 0 || vc->vc_decor.theight == 0 ||
+ info == NULL || vc->vc_decor.state || (!info->bgdecor.data &&
+ vc->vc_num == fg_console))
+ return -EINVAL;
+
+ vc->vc_decor.state = 1;
+ vc_resize(vc, vc->vc_decor.twidth / vc->vc_font.width,
+ vc->vc_decor.theight / vc->vc_font.height);
+
+ if (fg_console == vc->vc_num) {
+ redraw_screen(vc, 0);
+ update_region(vc, vc->vc_origin +
+ vc->vc_size_row * vc->vc_top,
+ vc->vc_size_row * (vc->vc_bottom - vc->vc_top) / 2);
+ fbcon_decor_clear_margins(vc, info, 0);
+ }
+
+ printk(KERN_INFO "fbcondecor: switched decor state to 'on' on console %d\n",
+ vc->vc_num);
+
+ return 0;
+}
+
+static inline int fbcon_decor_ioctl_dosetstate(struct vc_data *vc, unsigned int state, unsigned char origin)
+{
+ int ret;
+
+ console_lock();
+ if (!state)
+ ret = fbcon_decor_disable(vc, 1);
+ else
+ ret = fbcon_decor_enable(vc);
+ console_unlock();
+
+ return ret;
+}
+
+static inline void fbcon_decor_ioctl_dogetstate(struct vc_data *vc, unsigned int *state)
+{
+ *state = vc->vc_decor.state;
+}
+
+static int fbcon_decor_ioctl_dosetcfg(struct vc_data *vc, struct vc_decor *cfg, unsigned char origin)
+{
+ struct fb_info *info;
+ int len;
+ char *tmp;
+
+ info = registered_fb[(int) con2fb_map[vc->vc_num]];
+
+ if (info == NULL || !cfg->twidth || !cfg->theight ||
+ cfg->tx + cfg->twidth > info->var.xres ||
+ cfg->ty + cfg->theight > info->var.yres)
+ return -EINVAL;
+
+ len = strnlen_user(cfg->theme, MAX_ARG_STRLEN);
+ if (!len || len > FBCON_DECOR_THEME_LEN)
+ return -EINVAL;
+ tmp = kmalloc(len, GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
+ if (copy_from_user(tmp, (void __user *)cfg->theme, len))
+ return -EFAULT;
+ cfg->theme = tmp;
+ cfg->state = 0;
+
+ console_lock();
+ if (vc->vc_decor.state)
+ fbcon_decor_disable(vc, 1);
+ kfree(vc->vc_decor.theme);
+ vc->vc_decor = *cfg;
+ console_unlock();
+
+ printk(KERN_INFO "fbcondecor: console %d using theme '%s'\n",
+ vc->vc_num, vc->vc_decor.theme);
+ return 0;
+}
+
+static int fbcon_decor_ioctl_dogetcfg(struct vc_data *vc,
+ struct vc_decor *decor)
+{
+ char __user *tmp;
+
+ tmp = decor->theme;
+ *decor = vc->vc_decor;
+ decor->theme = tmp;
+
+ if (vc->vc_decor.theme) {
+ if (copy_to_user(tmp, vc->vc_decor.theme,
+ strlen(vc->vc_decor.theme) + 1))
+ return -EFAULT;
+ } else
+ if (put_user(0, tmp))
+ return -EFAULT;
+
+ return 0;
+}
+
+static int fbcon_decor_ioctl_dosetpic(struct vc_data *vc, struct fb_image *img,
+ unsigned char origin)
+{
+ struct fb_info *info;
+ int len;
+ u8 *tmp;
+
+ if (vc->vc_num != fg_console)
+ return -EINVAL;
+
+ info = registered_fb[(int) con2fb_map[vc->vc_num]];
+
+ if (info == NULL)
+ return -EINVAL;
+
+ if (img->width != info->var.xres || img->height != info->var.yres) {
+ printk(KERN_ERR "fbcondecor: picture dimensions mismatch\n");
+ printk(KERN_ERR "%dx%d vs %dx%d\n", img->width, img->height,
+ info->var.xres, info->var.yres);
+ return -EINVAL;
+ }
+
+ if (img->depth != info->var.bits_per_pixel) {
+ printk(KERN_ERR "fbcondecor: picture depth mismatch\n");
+ return -EINVAL;
+ }
+
+ if (img->depth == 8) {
+ if (!img->cmap.len || !img->cmap.red || !img->cmap.green ||
+ !img->cmap.blue)
+ return -EINVAL;
+
+ tmp = vmalloc(img->cmap.len * 3 * 2);
+ if (!tmp)
+ return -ENOMEM;
+
+ if (copy_from_user(tmp,
+ (void __user *)img->cmap.red,
+ (img->cmap.len << 1)) ||
+ copy_from_user(tmp + (img->cmap.len << 1),
+ (void __user *)img->cmap.green,
+ (img->cmap.len << 1)) ||
+ copy_from_user(tmp + (img->cmap.len << 2),
+ (void __user *)img->cmap.blue,
+ (img->cmap.len << 1))) {
+ vfree(tmp);
+ return -EFAULT;
+ }
+
+ img->cmap.transp = NULL;
+ img->cmap.red = (u16 *)tmp;
+ img->cmap.green = img->cmap.red + img->cmap.len;
+ img->cmap.blue = img->cmap.green + img->cmap.len;
+ } else {
+ img->cmap.red = NULL;
+ }
+
+ len = ((img->depth + 7) >> 3) * img->width * img->height;
+
+ /*
+ * Allocate an additional byte so that we never go outside of the
+ * buffer boundaries in the rendering functions in a 24 bpp mode.
+ */
+ tmp = vmalloc(len + 1);
+
+ if (!tmp)
+ goto out;
+
+ if (copy_from_user(tmp, (void __user *)img->data, len))
+ goto out;
+
+ img->data = tmp;
+
+ console_lock();
+
+ if (info->bgdecor.data)
+ vfree((u8 *)info->bgdecor.data);
+ if (info->bgdecor.cmap.red)
+ vfree(info->bgdecor.cmap.red);
+
+ info->bgdecor = *img;
+
+ if (fbcon_decor_active_vc(vc) && fg_console == vc->vc_num) {
+ redraw_screen(vc, 0);
+ update_region(vc, vc->vc_origin +
+ vc->vc_size_row * vc->vc_top,
+ vc->vc_size_row * (vc->vc_bottom - vc->vc_top) / 2);
+ fbcon_decor_clear_margins(vc, info, 0);
+ }
+
+ console_unlock();
+
+ return 0;
+
+out:
+ if (img->cmap.red)
+ vfree(img->cmap.red);
+
+ if (tmp)
+ vfree(tmp);
+ return -ENOMEM;
+}
+
+static long fbcon_decor_ioctl(struct file *filp, u_int cmd, u_long arg)
+{
+ struct fbcon_decor_iowrapper __user *wrapper = (void __user *) arg;
+ struct vc_data *vc = NULL;
+ unsigned short vc_num = 0;
+ unsigned char origin = 0;
+ void __user *data = NULL;
+
+ if (!access_ok(wrapper,
+ sizeof(struct fbcon_decor_iowrapper)))
+ return -EFAULT;
+
+ __get_user(vc_num, &wrapper->vc);
+ __get_user(origin, &wrapper->origin);
+ __get_user(data, &wrapper->data);
+
+ if (!vc_cons_allocated(vc_num))
+ return -EINVAL;
+
+ vc = vc_cons[vc_num].d;
+
+ switch (cmd) {
+ case FBIOCONDECOR_SETPIC:
+ {
+ struct fb_image img;
+
+ if (copy_from_user(&img, (struct fb_image __user *)data, sizeof(struct fb_image)))
+ return -EFAULT;
+
+ return fbcon_decor_ioctl_dosetpic(vc, &img, origin);
+ }
+ case FBIOCONDECOR_SETCFG:
+ {
+ struct vc_decor cfg;
+
+ if (copy_from_user(&cfg, (struct vc_decor __user *)data, sizeof(struct vc_decor)))
+ return -EFAULT;
+
+ return fbcon_decor_ioctl_dosetcfg(vc, &cfg, origin);
+ }
+ case FBIOCONDECOR_GETCFG:
+ {
+ int rval;
+ struct vc_decor cfg;
+
+ if (copy_from_user(&cfg, (struct vc_decor __user *)data, sizeof(struct vc_decor)))
+ return -EFAULT;
+
+ rval = fbcon_decor_ioctl_dogetcfg(vc, &cfg);
+
+ if (copy_to_user(data, &cfg, sizeof(struct vc_decor)))
+ return -EFAULT;
+ return rval;
+ }
+ case FBIOCONDECOR_SETSTATE:
+ {
+ unsigned int state = 0;
+
+ if (get_user(state, (unsigned int __user *)data))
+ return -EFAULT;
+ return fbcon_decor_ioctl_dosetstate(vc, state, origin);
+ }
+ case FBIOCONDECOR_GETSTATE:
+ {
+ unsigned int state = 0;
+
+ fbcon_decor_ioctl_dogetstate(vc, &state);
+ return put_user(state, (unsigned int __user *)data);
+ }
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+
+#ifdef CONFIG_COMPAT
+
+static long fbcon_decor_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
+{
+ struct fbcon_decor_iowrapper32 __user *wrapper = (void __user *)arg;
+ struct vc_data *vc = NULL;
+ unsigned short vc_num = 0;
+ unsigned char origin = 0;
+ compat_uptr_t data_compat = 0;
+ void __user *data = NULL;
+
+ if (!access_ok(wrapper,
+ sizeof(struct fbcon_decor_iowrapper32)))
+ return -EFAULT;
+
+ __get_user(vc_num, &wrapper->vc);
+ __get_user(origin, &wrapper->origin);
+ __get_user(data_compat, &wrapper->data);
+ data = compat_ptr(data_compat);
+
+ if (!vc_cons_allocated(vc_num))
+ return -EINVAL;
+
+ vc = vc_cons[vc_num].d;
+
+ switch (cmd) {
+ case FBIOCONDECOR_SETPIC32:
+ {
+ struct fb_image32 img_compat;
+ struct fb_image img;
+
+ if (copy_from_user(&img_compat, (struct fb_image32 __user *)data, sizeof(struct fb_image32)))
+ return -EFAULT;
+
+ fb_image_from_compat(img, img_compat);
+
+ return fbcon_decor_ioctl_dosetpic(vc, &img, origin);
+ }
+
+ case FBIOCONDECOR_SETCFG32:
+ {
+ struct vc_decor32 cfg_compat;
+ struct vc_decor cfg;
+
+ if (copy_from_user(&cfg_compat, (struct vc_decor32 __user *)data, sizeof(struct vc_decor32)))
+ return -EFAULT;
+
+ vc_decor_from_compat(cfg, cfg_compat);
+
+ return fbcon_decor_ioctl_dosetcfg(vc, &cfg, origin);
+ }
+
+ case FBIOCONDECOR_GETCFG32:
+ {
+ int rval;
+ struct vc_decor32 cfg_compat;
+ struct vc_decor cfg;
+
+ if (copy_from_user(&cfg_compat, (struct vc_decor32 __user *)data, sizeof(struct vc_decor32)))
+ return -EFAULT;
+ cfg.theme = compat_ptr(cfg_compat.theme);
+
+ rval = fbcon_decor_ioctl_dogetcfg(vc, &cfg);
+
+ vc_decor_to_compat(cfg_compat, cfg);
+
+ if (copy_to_user((struct vc_decor32 __user *)data, &cfg_compat, sizeof(struct vc_decor32)))
+ return -EFAULT;
+ return rval;
+ }
+
+ case FBIOCONDECOR_SETSTATE32:
+ {
+ compat_uint_t state_compat = 0;
+ unsigned int state = 0;
+
+ if (get_user(state_compat, (compat_uint_t __user *)data))
+ return -EFAULT;
+
+ state = (unsigned int)state_compat;
+
+ return fbcon_decor_ioctl_dosetstate(vc, state, origin);
+ }
+
+ case FBIOCONDECOR_GETSTATE32:
+ {
+ compat_uint_t state_compat = 0;
+ unsigned int state = 0;
+
+ fbcon_decor_ioctl_dogetstate(vc, &state);
+ state_compat = (compat_uint_t)state;
+
+ return put_user(state_compat, (compat_uint_t __user *)data);
+ }
+
+ default:
+ return -ENOIOCTLCMD;
+ }
+}
+#else
+ #define fbcon_decor_compat_ioctl NULL
+#endif
+
+static struct file_operations fbcon_decor_ops = {
+ .owner = THIS_MODULE,
+ .unlocked_ioctl = fbcon_decor_ioctl,
+ .compat_ioctl = fbcon_decor_compat_ioctl
+};
+
+static struct miscdevice fbcon_decor_dev = {
+ .minor = MISC_DYNAMIC_MINOR,
+ .name = "fbcondecor",
+ .fops = &fbcon_decor_ops
+};
+
+static void fbcon_decor_reset(void)
+{
+ int i;
+
+ for (i = 0; i < num_registered_fb; i++) {
+ registered_fb[i]->bgdecor.data = NULL;
+ registered_fb[i]->bgdecor.cmap.red = NULL;
+ }
+
+ for (i = 0; i < MAX_NR_CONSOLES && vc_cons[i].d; i++) {
+ vc_cons[i].d->vc_decor.state = vc_cons[i].d->vc_decor.twidth =
+ vc_cons[i].d->vc_decor.theight = 0;
+ vc_cons[i].d->vc_decor.theme = NULL;
+ }
+}
+
+int fbcon_decor_init(void)
+{
+ int i;
+
+ fbcon_decor_reset();
+
+ if (initialized)
+ return 0;
+
+ i = misc_register(&fbcon_decor_dev);
+ if (i) {
+ printk(KERN_ERR "fbcondecor: failed to register device\n");
+ return i;
+ }
+
+ fbcon_decor_call_helper("init", 0);
+ initialized = 1;
+ return 0;
+}
+
+int fbcon_decor_exit(void)
+{
+ fbcon_decor_reset();
+ return 0;
+}
diff --git a/drivers/video/console/fbcondecor.h b/drivers/video/console/fbcondecor.h
new file mode 100644
index 00000000000000..881861a75c35f4
--- /dev/null
+++ b/drivers/video/console/fbcondecor.h
@@ -0,0 +1,71 @@
+/*
+ * linux/drivers/video/console/fbcondecor.h -- Framebuffer Console Decoration headers
+ *
+ * Copyright (C) 2004 Michal Januszewski <michalj+fbcondecor@gmail.com>
+ *
+ */
+
+#ifndef __FBCON_DECOR_H
+#define __FBCON_DECOR_H
+
+#ifndef _LINUX_FB_H
+#include <linux/fb.h>
+#endif
+
+/* This is needed for vc_cons in fbcmap.c */
+#include <linux/vt_kern.h>
+
+struct fb_cursor;
+struct fb_info;
+struct vc_data;
+
+#ifdef CONFIG_FB_CON_DECOR
+/* fbcondecor.c */
+int fbcon_decor_init(void);
+int fbcon_decor_exit(void);
+int fbcon_decor_call_helper(char *cmd, unsigned short cons);
+int fbcon_decor_disable(struct vc_data *vc, unsigned char redraw);
+
+/* cfbcondecor.c */
+void fbcon_decor_putcs(struct vc_data *vc, struct fb_info *info, const unsigned short *s, int count, int yy, int xx);
+void fbcon_decor_cursor(struct fb_info *info, struct fb_cursor *cursor);
+void fbcon_decor_clear(struct vc_data *vc, struct fb_info *info, int sy, int sx, int height, int width);
+void fbcon_decor_clear_margins(struct vc_data *vc, struct fb_info *info, int bottom_only);
+void fbcon_decor_blank(struct vc_data *vc, struct fb_info *info, int blank);
+void fbcon_decor_bmove_redraw(struct vc_data *vc, struct fb_info *info, int y, int sx, int dx, int width);
+void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc);
+
+/* struct vc_data *y */
+#define fbcon_decor_active_vc(y) (y->vc_decor.state && y->vc_decor.theme)
+
+/* struct fb_info *x, struct vc_data *y */
+#define fbcon_decor_active_nores(x, y) (x->bgdecor.data && fbcon_decor_active_vc(y))
+
+/* struct fb_info *x, struct vc_data *y */
+#define fbcon_decor_active(x, y) (fbcon_decor_active_nores(x, y) && \
+ x->bgdecor.width == x->var.xres && \
+ x->bgdecor.height == x->var.yres && \
+ x->bgdecor.depth == x->var.bits_per_pixel)
+
+#else /* CONFIG_FB_CON_DECOR */
+
+static inline void fbcon_decor_putcs(struct vc_data *vc, struct fb_info *info, const unsigned short *s, int count, int yy, int xx) {}
+static inline void fbcon_decor_putc(struct vc_data *vc, struct fb_info *info, int c, int ypos, int xpos) {}
+static inline void fbcon_decor_cursor(struct fb_info *info, struct fb_cursor *cursor) {}
+static inline void fbcon_decor_clear(struct vc_data *vc, struct fb_info *info, int sy, int sx, int height, int width) {}
+static inline void fbcon_decor_clear_margins(struct vc_data *vc, struct fb_info *info, int bottom_only) {}
+static inline void fbcon_decor_blank(struct vc_data *vc, struct fb_info *info, int blank) {}
+static inline void fbcon_decor_bmove_redraw(struct vc_data *vc, struct fb_info *info, int y, int sx, int dx, int width) {}
+static inline void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc) {}
+static inline int fbcon_decor_call_helper(char *cmd, unsigned short cons) { return 0; }
+static inline int fbcon_decor_init(void) { return 0; }
+static inline int fbcon_decor_exit(void) { return 0; }
+static inline int fbcon_decor_disable(struct vc_data *vc, unsigned char redraw) { return 0; }
+
+#define fbcon_decor_active_vc(y) (0)
+#define fbcon_decor_active_nores(x, y) (0)
+#define fbcon_decor_active(x, y) (0)
+
+#endif /* CONFIG_FB_CON_DECOR */
+
+#endif /* __FBCON_DECOR_H */
diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c
index f9475c14f7339b..6bed5e46eacba2 100644
--- a/drivers/video/fbdev/core/bitblit.c
+++ b/drivers/video/fbdev/core/bitblit.c
@@ -18,6 +18,7 @@
#include <linux/console.h>
#include <asm/types.h>
#include "fbcon.h"
+#include "../../console/fbcondecor.h"
/*
* Accelerated handlers.
@@ -55,6 +56,13 @@ static void bit_bmove(struct vc_data *vc, struct fb_info *info, int sy,
area.height = height * vc->vc_font.height;
area.width = width * vc->vc_font.width;
+ if (fbcon_decor_active(info, vc)) {
+ area.sx += vc->vc_decor.tx;
+ area.sy += vc->vc_decor.ty;
+ area.dx += vc->vc_decor.tx;
+ area.dy += vc->vc_decor.ty;
+ }
+
info->fbops->fb_copyarea(info, &area);
}
@@ -363,11 +371,15 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, bool enable,
cursor.image.depth = 1;
cursor.rop = ROP_XOR;
- if (info->fbops->fb_cursor)
- err = info->fbops->fb_cursor(info, &cursor);
+ if (fbcon_decor_active(info, vc)) {
+ fbcon_decor_cursor(info, &cursor);
+ } else {
+ if (info->fbops->fb_cursor)
+ err = info->fbops->fb_cursor(info, &cursor);
- if (err)
- soft_cursor(info, &cursor);
+ if (err)
+ soft_cursor(info, &cursor);
+ }
ops->cursor_reset = 0;
}
diff --git a/drivers/video/fbdev/core/fb_chrdev.c b/drivers/video/fbdev/core/fb_chrdev.c
index 4ebd16b7e3b8d6..a8ad512209572b 100644
--- a/drivers/video/fbdev/core/fb_chrdev.c
+++ b/drivers/video/fbdev/core/fb_chrdev.c
@@ -187,15 +187,6 @@ struct fb_fix_screeninfo32 {
u16 reserved[3];
};
-struct fb_cmap32 {
- u32 start;
- u32 len;
- compat_caddr_t red;
- compat_caddr_t green;
- compat_caddr_t blue;
- compat_caddr_t transp;
-};
-
static int fb_getput_cmap(struct fb_info *info, unsigned int cmd,
unsigned long arg)
{
diff --git a/drivers/video/fbdev/core/fbcmap.c b/drivers/video/fbdev/core/fbcmap.c
index ff09e57f3c3801..0bc40d793e1502 100644
--- a/drivers/video/fbdev/core/fbcmap.c
+++ b/drivers/video/fbdev/core/fbcmap.c
@@ -17,6 +17,8 @@
#include <linux/slab.h>
#include <linux/uaccess.h>
+#include "../../console/fbcondecor.h"
+
static u16 red2[] __read_mostly = {
0x0000, 0xaaaa
};
@@ -258,9 +260,12 @@ int fb_set_cmap(struct fb_cmap *cmap, struct fb_info *info)
break;
}
}
- if (rc == 0)
+ if (rc == 0) {
fb_copy_cmap(cmap, &info->cmap);
-
+ if (fbcon_decor_active(info, vc_cons[fg_console].d) &&
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR)
+ fbcon_decor_fix_pseudo_pal(info, vc_cons[fg_console].d);
+ }
return rc;
}
diff --git a/drivers/video/fbdev/core/fbcon.c b/drivers/video/fbdev/core/fbcon.c
index 2df48037688d1d..9b06dc67854f55 100644
--- a/drivers/video/fbdev/core/fbcon.c
+++ b/drivers/video/fbdev/core/fbcon.c
@@ -82,6 +82,8 @@
#include "fbcon.h"
#include "fb_internal.h"
+#include "../../console/fbcondecor.h"
+
/*
* FIXME: Locking
*
@@ -112,7 +114,7 @@ static int fbcon_num_registered_fb;
for (i = 0; WARN_CONSOLE_UNLOCKED(), i < FB_MAX; i++) \
if (!fbcon_registered_fb[i]) {} else
-static signed char con2fb_map[MAX_NR_CONSOLES];
+signed char con2fb_map[MAX_NR_CONSOLES];
static signed char con2fb_map_boot[MAX_NR_CONSOLES];
static struct fb_info *fbcon_info_from_console(int console)
@@ -296,7 +298,7 @@ static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info)
vc->vc_mode != KD_TEXT || ops->graphics || fbcon_skip_panic(info));
}
-static int get_color(struct vc_data *vc, struct fb_info *info,
+int get_color(struct vc_data *vc, struct fb_info *info,
u16 c, int is_fg)
{
int depth = fb_get_color_depth(&info->var, &info->fix);
@@ -559,6 +561,9 @@ static int do_fbcon_takeover(int show_logo)
info_idx = -1;
} else {
fbcon_has_console_bind = 1;
+#ifdef CONFIG_FB_CON_DECOR
+ fbcon_decor_init();
+#endif
}
return err;
@@ -998,6 +1003,12 @@ static const char *fbcon_startup(void)
rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
cols /= vc->vc_font.width;
rows /= vc->vc_font.height;
+
+ if (fbcon_decor_active(info, vc)) {
+ cols = vc->vc_decor.twidth / vc->vc_font.width;
+ rows = vc->vc_decor.theight / vc->vc_font.height;
+ }
+
vc_resize(vc, cols, rows);
pr_debug("mode: %s\n", info->fix.id);
@@ -1032,7 +1043,7 @@ static void fbcon_init(struct vc_data *vc, bool init)
logo_shown = FBCON_LOGO_DONTSHOW;
if (vc != svc || logo_shown == FBCON_LOGO_DONTSHOW ||
- (info->fix.type == FB_TYPE_TEXT))
+ (info->fix.type == FB_TYPE_TEXT) || fbcon_decor_active(info, vc))
logo = 0;
if (var_to_display(p, &info->var, info))
@@ -1283,6 +1294,11 @@ static void __fbcon_clear(struct vc_data *vc, unsigned int sy, unsigned int sx,
fbcon_clear_margins(vc, 0);
}
+ if (fbcon_decor_active(info, vc)) {
+ fbcon_decor_clear(vc, info, sy, sx, height, width);
+ return;
+ }
+
fg = get_color(vc, info, vc->vc_video_erase_char, 1);
bg = get_color(vc, info, vc->vc_video_erase_char, 0);
/* Split blits that cross physical y_wrap boundary */
@@ -1310,10 +1326,14 @@ static void fbcon_putcs(struct vc_data *vc, const u16 *s, unsigned int count,
struct fbcon_display *p = &fb_display[vc->vc_num];
struct fbcon_ops *ops = info->fbcon_par;
- if (!fbcon_is_inactive(vc, info))
- ops->putcs(vc, info, s, count, real_y(p, ypos), xpos,
- get_color(vc, info, scr_readw(s), 1),
- get_color(vc, info, scr_readw(s), 0));
+ if (!fbcon_is_inactive(vc, info)) {
+ if (fbcon_decor_active(info, vc))
+ fbcon_decor_putcs(vc, info, s, count, ypos, xpos);
+ else
+ ops->putcs(vc, info, s, count, real_y(p, ypos), xpos,
+ get_color(vc, info, scr_readw(s), 1),
+ get_color(vc, info, scr_readw(s), 0));
+ }
}
static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
@@ -1321,8 +1341,12 @@ static void fbcon_clear_margins(struct vc_data *vc, int bottom_only)
struct fb_info *info = fbcon_info_from_console(vc->vc_num);
struct fbcon_ops *ops = info->fbcon_par;
- if (!fbcon_is_inactive(vc, info))
- ops->clear_margins(vc, info, margin_color, bottom_only);
+ if (!fbcon_is_inactive(vc, info)) {
+ if (fbcon_decor_active(info, vc))
+ fbcon_decor_clear_margins(vc, info, bottom_only);
+ else
+ ops->clear_margins(vc, info, margin_color, bottom_only);
+ }
}
static void fbcon_cursor(struct vc_data *vc, bool enable)
@@ -1729,6 +1753,13 @@ static void fbcon_bmove_rec(struct vc_data *vc, struct fbcon_display *p, int sy,
}
return;
}
+
+ if (fbcon_decor_active(info, vc) && sy == dy && height == 1) {
+ /* must use slower redraw bmove to keep background pic intact */
+ fbcon_decor_bmove_redraw(vc, info, sy, sx, dx, width);
+ return;
+ }
+
ops->bmove(vc, info, real_y(p, sy), sx, real_y(p, dy), dx,
height, width);
}
@@ -1778,6 +1809,8 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
case SM_UP:
if (count > vc->vc_rows) /* Maximum realistic size */
count = vc->vc_rows;
+ if (fbcon_decor_active(info, vc))
+ goto redraw_up;
switch (fb_scrollmode(p)) {
case SCROLL_MOVE:
fbcon_redraw_blit(vc, info, p, t, b - t - count,
@@ -1866,6 +1899,8 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b,
case SM_DOWN:
if (count > vc->vc_rows) /* Maximum realistic size */
count = vc->vc_rows;
+ if (fbcon_decor_active(info, vc))
+ goto redraw_down;
switch (fb_scrollmode(p)) {
case SCROLL_MOVE:
fbcon_redraw_blit(vc, info, p, b - 1, b - t - count,
@@ -2054,8 +2089,8 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width,
var.yres = virt_h * virt_fh;
x_diff = info->var.xres - var.xres;
y_diff = info->var.yres - var.yres;
- if (x_diff < 0 || x_diff > virt_fw ||
- y_diff < 0 || y_diff > virt_fh) {
+ if ((x_diff < 0 || x_diff > virt_fw ||
+ y_diff < 0 || y_diff > virt_fh) && !vc->vc_decor.state) {
const struct fb_videomode *mode;
pr_debug("attempting resize %ix%i\n", var.xres, var.yres);
@@ -2091,6 +2126,22 @@ static bool fbcon_switch(struct vc_data *vc)
info = fbcon_info_from_console(vc->vc_num);
ops = info->fbcon_par;
+ prev_console = ops->currcon;
+ if (prev_console != -1)
+ old_info = registered_fb[con2fb_map[prev_console]];
+
+#ifdef CONFIG_FB_CON_DECOR
+ if (!fbcon_decor_active_vc(vc) && info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+ struct vc_data *vc_curr = vc_cons[prev_console].d;
+
+ if (vc_curr && fbcon_decor_active_vc(vc_curr)) {
+ // Clear the screen to avoid displaying funky colors
+ // during palette updates.
+ memset((u8 *)info->screen_base + info->fix.line_length * info->var.yoffset,
+ 0, info->var.yres * info->fix.line_length);
+ }
+ }
+#endif
if (logo_shown >= 0) {
struct vc_data *conp2 = vc_cons[logo_shown].d;
@@ -2101,9 +2152,6 @@ static bool fbcon_switch(struct vc_data *vc)
logo_shown = FBCON_LOGO_CANSHOW;
}
- prev_console = ops->currcon;
- if (prev_console != -1)
- old_info = fbcon_info_from_console(prev_console);
/*
* FIXME: If we have multiple fbdev's loaded, we need to
* update all info->currcon. Perhaps, we can place this
@@ -2147,6 +2195,18 @@ static bool fbcon_switch(struct vc_data *vc)
fbcon_del_cursor_work(old_info);
}
+ if (fbcon_decor_active_vc(vc)) {
+ struct vc_data *vc_curr = vc_cons[prev_console].d;
+
+ if (!vc_curr->vc_decor.theme ||
+ strcmp(vc->vc_decor.theme, vc_curr->vc_decor.theme) ||
+ (fbcon_decor_active_nores(info, vc_curr) &&
+ !fbcon_decor_active(info, vc_curr))) {
+ fbcon_decor_disable(vc, 0);
+ fbcon_decor_call_helper("modechange", vc->vc_num);
+ }
+ }
+
if (fbcon_is_inactive(vc, info) ||
ops->blank_state != FB_BLANK_UNBLANK)
fbcon_del_cursor_work(info);
@@ -2249,8 +2309,12 @@ static bool fbcon_blank(struct vc_data *vc, enum vesa_blank_mode blank,
fbcon_cursor(vc, !blank);
ops->cursor_flash = (!blank);
- if (fb_blank(info, blank))
- fbcon_generic_blank(vc, info, blank);
+ if (fb_blank(info, blank)) {
+ if (fbcon_decor_active(info, vc))
+ fbcon_decor_blank(vc, info, blank);
+ else
+ fbcon_generic_blank(vc, info, blank);
+ }
}
if (!blank)
@@ -2446,6 +2510,12 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, int charcount,
cols = FBCON_SWAP(ops->rotate, info->var.xres, info->var.yres);
rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
+
+ if (fbcon_decor_active(info, vc)) {
+ info->var.xoffset = info->var.yoffset = p->yscroll = 0;
+ cols = vc->vc_decor.twidth;
+ rows = vc->vc_decor.theight;
+ }
cols /= w;
rows /= h;
ret = vc_resize(vc, cols, rows);
@@ -2587,7 +2657,11 @@ static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
int i, j, k, depth;
u8 val;
- if (fbcon_is_inactive(vc, info))
+ if (fbcon_is_inactive(vc, info)
+#ifdef CONFIG_FB_CON_DECOR
+ || vc->vc_num != fg_console
+#endif
+ )
return;
if (!con_is_visible(vc))
@@ -2613,7 +2687,47 @@ static void fbcon_set_palette(struct vc_data *vc, const unsigned char *table)
} else
fb_copy_cmap(fb_default_cmap(1 << depth), &palette_cmap);
- fb_set_cmap(&palette_cmap, info);
+ if (fbcon_decor_active(info, vc_cons[fg_console].d) &&
+ info->fix.visual == FB_VISUAL_DIRECTCOLOR) {
+
+ u16 *red, *green, *blue;
+ int minlen = min(min(info->var.red.length, info->var.green.length),
+ info->var.blue.length);
+
+ struct fb_cmap cmap = {
+ .start = 0,
+ .len = (1 << minlen),
+ .red = NULL,
+ .green = NULL,
+ .blue = NULL,
+ .transp = NULL
+ };
+
+ red = kmalloc(256 * sizeof(u16) * 3, GFP_KERNEL);
+
+ if (!red)
+ goto out;
+
+ green = red + 256;
+ blue = green + 256;
+ cmap.red = red;
+ cmap.green = green;
+ cmap.blue = blue;
+
+ for (i = 0; i < cmap.len; i++)
+ red[i] = green[i] = blue[i] = (0xffff * i)/(cmap.len-1);
+
+ fb_set_cmap(&cmap, info);
+ fbcon_decor_fix_pseudo_pal(info, vc_cons[fg_console].d);
+ kfree(red);
+
+ return;
+
+ } else if (fbcon_decor_active(info, vc_cons[fg_console].d) &&
+ info->var.bits_per_pixel == 8 && info->bgdecor.cmap.red != NULL)
+ fb_set_cmap(&info->bgdecor.cmap, info);
+
+out: fb_set_cmap(&palette_cmap, info);
}
/* As we might be inside of softback, we may work with non-contiguous buffer,
@@ -2682,7 +2796,14 @@ static void fbcon_modechanged(struct fb_info *info)
rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
cols /= vc->vc_font.width;
rows /= vc->vc_font.height;
- vc_resize(vc, cols, rows);
+
+ if (!fbcon_decor_active_nores(info, vc)) {
+ vc_resize(vc, cols, rows);
+ } else {
+ fbcon_decor_disable(vc, 0);
+ fbcon_decor_call_helper("modechange", vc->vc_num);
+ }
+
updatescrollmode(p, info, vc);
scrollback_max = 0;
scrollback_current = 0;
@@ -2725,7 +2846,8 @@ static void fbcon_set_all_vcs(struct fb_info *info)
rows = FBCON_SWAP(ops->rotate, info->var.yres, info->var.xres);
cols /= vc->vc_font.width;
rows /= vc->vc_font.height;
- vc_resize(vc, cols, rows);
+ if (!fbcon_decor_active_nores(info, vc))
+ vc_resize(vc, cols, rows);
}
if (fg != -1)
@@ -3095,6 +3217,7 @@ void fbcon_get_requirement(struct fb_info *info,
caps->len = vc->vc_font.charcount;
}
}
+ fbcon_decor_exit();
}
int fbcon_set_con2fb_map_ioctl(void __user *argp)
diff --git a/include/linux/console_decor.h b/include/linux/console_decor.h
new file mode 100644
index 00000000000000..15143556c2aa8a
--- /dev/null
+++ b/include/linux/console_decor.h
@@ -0,0 +1,46 @@
+#ifndef _LINUX_CONSOLE_DECOR_H_
+#define _LINUX_CONSOLE_DECOR_H_ 1
+
+/* A structure used by the framebuffer console decorations (drivers/video/console/fbcondecor.c) */
+struct vc_decor {
+ __u8 bg_color; /* The color that is to be treated as transparent */
+ __u8 state; /* Current decor state: 0 = off, 1 = on */
+ __u16 tx, ty; /* Top left corner coordinates of the text field */
+ __u16 twidth, theight; /* Width and height of the text field */
+ char *theme;
+};
+
+#ifdef __KERNEL__
+#ifdef CONFIG_COMPAT
+#include <linux/compat.h>
+
+struct vc_decor32 {
+ __u8 bg_color; /* The color that is to be treated as transparent */
+ __u8 state; /* Current decor state: 0 = off, 1 = on */
+ __u16 tx, ty; /* Top left corner coordinates of the text field */
+ __u16 twidth, theight; /* Width and height of the text field */
+ compat_uptr_t theme;
+};
+
+#define vc_decor_from_compat(to, from) \
+ (to).bg_color = (from).bg_color; \
+ (to).state = (from).state; \
+ (to).tx = (from).tx; \
+ (to).ty = (from).ty; \
+ (to).twidth = (from).twidth; \
+ (to).theight = (from).theight; \
+ (to).theme = compat_ptr((from).theme)
+
+#define vc_decor_to_compat(to, from) \
+ (to).bg_color = (from).bg_color; \
+ (to).state = (from).state; \
+ (to).tx = (from).tx; \
+ (to).ty = (from).ty; \
+ (to).twidth = (from).twidth; \
+ (to).theight = (from).theight; \
+ (to).theme = ptr_to_compat((from).theme)
+
+#endif /* CONFIG_COMPAT */
+#endif /* __KERNEL__ */
+
+#endif
diff --git a/include/linux/console_struct.h b/include/linux/console_struct.h
index 59b4fec5f2548c..a9191531c7521a 100644
--- a/include/linux/console_struct.h
+++ b/include/linux/console_struct.h
@@ -21,6 +21,7 @@ struct uni_pagedict;
#define NPAR 16
#define VC_TABSTOPS_COUNT 256U
+#include <linux/console_decor.h>
enum vc_intensity {
VCI_HALF_BRIGHT,
@@ -159,6 +160,7 @@ struct vc_data {
struct uni_pagedict *uni_pagedict;
struct uni_pagedict **uni_pagedict_loc; /* [!] Location of uni_pagedict variable for this console */
u32 **vc_uni_lines; /* unicode screen content */
+ struct vc_decor vc_decor;
/* additional information is in vt_kern.h */
};
diff --git a/include/linux/fb.h b/include/linux/fb.h
index 05cc251035da98..f60422772ca136 100644
--- a/include/linux/fb.h
+++ b/include/linux/fb.h
@@ -226,6 +226,34 @@ struct fb_deferred_io {
};
#endif
+#ifdef __KERNEL__
+#ifdef CONFIG_COMPAT
+struct fb_image32 {
+ __u32 dx; /* Where to place image */
+ __u32 dy;
+ __u32 width; /* Size of image */
+ __u32 height;
+ __u32 fg_color; /* Only used when a mono bitmap */
+ __u32 bg_color;
+ __u8 depth; /* Depth of the image */
+ const compat_uptr_t data; /* Pointer to image data */
+ struct fb_cmap32 cmap; /* color map info */
+};
+
+#define fb_image_from_compat(to, from) \
+ (to).dx = (from).dx; \
+ (to).dy = (from).dy; \
+ (to).width = (from).width; \
+ (to).height = (from).height; \
+ (to).fg_color = (from).fg_color; \
+ (to).bg_color = (from).bg_color; \
+ (to).depth = (from).depth; \
+ (to).data = compat_ptr((from).data); \
+ fb_cmap_from_compat((to).cmap, (from).cmap)
+
+#endif /* CONFIG_COMPAT */
+#endif /* __KERNEL__ */
+
/*
* Frame buffer operations
*
@@ -511,6 +539,9 @@ struct fb_info {
#define FBINFO_STATE_SUSPENDED 1
u32 state; /* Hardware state i.e suspend */
void *fbcon_par; /* fbcon use-only private area */
+
+ struct fb_image bgdecor;
+
/* From here on everything is device dependent */
void *par;
diff --git a/include/uapi/linux/fb.h b/include/uapi/linux/fb.h
index cde8f173f566b8..58027efb9ee2e9 100644
--- a/include/uapi/linux/fb.h
+++ b/include/uapi/linux/fb.h
@@ -10,6 +10,23 @@
#define FB_MAX 32 /* sufficient for now */
+struct fbcon_decor_iowrapper {
+ unsigned short vc; /* Virtual console */
+ unsigned char origin; /* Point of origin of the request */
+ void *data;
+};
+
+#ifdef __KERNEL__
+#ifdef CONFIG_COMPAT
+#include <linux/compat.h>
+struct fbcon_decor_iowrapper32 {
+ unsigned short vc; /* Virtual console */
+ unsigned char origin; /* Point of origin of the request */
+ compat_uptr_t data;
+};
+#endif /* CONFIG_COMPAT */
+#endif /* __KERNEL__ */
+
/* ioctls
0x46 is 'F' */
#define FBIOGET_VSCREENINFO 0x4600
@@ -37,6 +54,25 @@
#define FBIOGET_DISPINFO 0x4618
#define FBIO_WAITFORVSYNC _IOW('F', 0x20, __u32)
+#define FBIOCONDECOR_SETCFG _IOWR('F', 0x19, struct fbcon_decor_iowrapper)
+#define FBIOCONDECOR_GETCFG _IOR('F', 0x1A, struct fbcon_decor_iowrapper)
+#define FBIOCONDECOR_SETSTATE _IOWR('F', 0x1B, struct fbcon_decor_iowrapper)
+#define FBIOCONDECOR_GETSTATE _IOR('F', 0x1C, struct fbcon_decor_iowrapper)
+#define FBIOCONDECOR_SETPIC _IOWR('F', 0x1D, struct fbcon_decor_iowrapper)
+#ifdef __KERNEL__
+#ifdef CONFIG_COMPAT
+#define FBIOCONDECOR_SETCFG32 _IOWR('F', 0x19, struct fbcon_decor_iowrapper32)
+#define FBIOCONDECOR_GETCFG32 _IOR('F', 0x1A, struct fbcon_decor_iowrapper32)
+#define FBIOCONDECOR_SETSTATE32 _IOWR('F', 0x1B, struct fbcon_decor_iowrapper32)
+#define FBIOCONDECOR_GETSTATE32 _IOR('F', 0x1C, struct fbcon_decor_iowrapper32)
+#define FBIOCONDECOR_SETPIC32 _IOWR('F', 0x1D, struct fbcon_decor_iowrapper32)
+#endif /* CONFIG_COMPAT */
+#endif /* __KERNEL__ */
+
+#define FBCON_DECOR_THEME_LEN 128 /* Maximum length of a theme name */
+#define FBCON_DECOR_IO_ORIG_KERNEL 0 /* Kernel ioctl origin */
+#define FBCON_DECOR_IO_ORIG_USER 1 /* User ioctl origin */
+
#define FB_TYPE_PACKED_PIXELS 0 /* Packed Pixels */
#define FB_TYPE_PLANES 1 /* Non interleaved planes */
#define FB_TYPE_INTERLEAVED_PLANES 2 /* Interleaved planes */
@@ -280,6 +316,29 @@ struct fb_var_screeninfo {
__u32 reserved[4]; /* Reserved for future compatibility */
};
+#ifdef __KERNEL__
+#ifdef CONFIG_COMPAT
+struct fb_cmap32 {
+ __u32 start;
+ __u32 len; /* Number of entries */
+ compat_uptr_t red; /* Red values */
+ compat_uptr_t green;
+ compat_uptr_t blue;
+ compat_uptr_t transp; /* transparency, can be NULL */
+};
+
+#define fb_cmap_from_compat(to, from) \
+ (to).start = (from).start; \
+ (to).len = (from).len; \
+ (to).red = compat_ptr((from).red); \
+ (to).green = compat_ptr((from).green); \
+ (to).blue = compat_ptr((from).blue); \
+ (to).transp = compat_ptr((from).transp)
+
+#endif /* CONFIG_COMPAT */
+#endif /* __KERNEL__ */
+
+
struct fb_cmap {
__u32 start; /* First entry */
__u32 len; /* Number of entries */
diff --git a/kernel/sysctl.c b/kernel/sysctl.c
index 9b4f0cff76eadd..89fc87da63856e 100644
--- a/kernel/sysctl.c
+++ b/kernel/sysctl.c
@@ -1580,6 +1580,10 @@ int proc_do_static_key(const struct ctl_table *table, int write,
return ret;
}
+#ifdef CONFIG_FB_CON_DECOR
+extern char fbcon_decor_path[];
+#endif
+
static const struct ctl_table kern_table[] = {
#ifdef CONFIG_PROC_SYSCTL
{
@@ -1758,6 +1762,15 @@ static const struct ctl_table kern_table[] = {
.extra2 = SYSCTL_INT_MAX,
},
#endif
+#ifdef CONFIG_FB_CON_DECOR
+ {
+ .procname = "fbcondecor",
+ .data = &fbcon_decor_path,
+ .maxlen = KMOD_PATH_LEN,
+ .mode = 0644,
+ .proc_handler = &proc_dostring,
+ },
+#endif
};
int __init sysctl_init_bases(void)
@@ -1766,6 +1779,7 @@ int __init sysctl_init_bases(void)
return 0;
}
+
#endif /* CONFIG_SYSCTL */
/*
* No sense putting this after each symbol definition, twice,
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