diff --git a/Documentation/fb/00-INDEX b/Documentation/fb/00-INDEX index fe85e7c5907a..22309308ba56 100644 --- a/Documentation/fb/00-INDEX +++ b/Documentation/fb/00-INDEX @@ -23,6 +23,8 @@ ep93xx-fb.txt - info on the driver for EP93xx LCD controller. fbcon.txt - intro to and usage guide for the framebuffer console (fbcon). +fbcondecor.txt + - info on the Framebuffer Console Decoration framebuffer.txt - introduction to frame buffer devices. gxfb.txt diff --git a/Documentation/fb/fbcondecor.txt b/Documentation/fb/fbcondecor.txt new file mode 100644 index 000000000000..637209e11ccd --- /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: + http://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: + + +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 , Stefan Reinauer , + Steffen Winterfeldt , Michael Schroeder , + Ken Wimer . + +Fbcondecor, fbcondecor protocol design, current implementation & docs by: + Michal Januszewski + diff --git a/drivers/Makefile b/drivers/Makefile index 1d034b680431..9f41f2ea0c8b 100644 --- a/drivers/Makefile +++ b/drivers/Makefile @@ -23,6 +23,10 @@ obj-y += pci/dwc/ 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/ @@ -53,11 +57,6 @@ 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-$(CONFIG_IOMMU_SUPPORT) += iommu/ diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig index 7f1f1fbcef9e..8439b618dfc0 100644 --- a/drivers/video/console/Kconfig +++ b/drivers/video/console/Kconfig @@ -151,6 +151,19 @@ config FRAMEBUFFER_CONSOLE_ROTATION such that other users of the framebuffer will remain normally oriented. +config FB_CON_DECOR + bool "Support for the Framebuffer Console Decorations" + depends on FRAMEBUFFER_CONSOLE=y && !FB_TILEBLITTING + default n + ---help--- + This option enables support for framebuffer console decorations which + makes it possible to display images in the background of the system + consoles. Note that userspace utilities are necessary in order to take + advantage of these features. Refer to Documentation/fb/fbcondecor.txt + for more information. + + If unsure, say N. + config STI_CONSOLE bool "STI text console" depends on PARISC diff --git a/drivers/video/console/Makefile b/drivers/video/console/Makefile index db07b784bd2c..3e369bd120b8 100644 --- a/drivers/video/console/Makefile +++ b/drivers/video/console/Makefile @@ -9,4 +9,5 @@ obj-$(CONFIG_STI_CONSOLE) += sticon.o sticore.o obj-$(CONFIG_VGA_CONSOLE) += vgacon.o obj-$(CONFIG_MDA_CONSOLE) += mdacon.o +obj-$(CONFIG_FB_CON_DECOR) += fbcondecor.o cfbcondecor.o obj-$(CONFIG_FB_STI) += sticore.o diff --git a/drivers/video/console/cfbcondecor.c b/drivers/video/console/cfbcondecor.c new file mode 100644 index 000000000000..b00960803edc --- /dev/null +++ b/drivers/video/console/cfbcondecor.c @@ -0,0 +1,473 @@ +/* + * linux/drivers/video/cfbcon_decor.c -- Framebuffer decor render functions + * + * Copyright (C) 2004 Michal Januszewski + * + * Code based upon "Bootdecor" (C) 2001-2003 + * Volker Poplawski , + * Stefan Reinauer , + * Steffen Winterfeldt , + * Michael Schroeder , + * Ken Wimer . + * + * 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 +#include +#include +#include +#include +#include +#include + +#include "../fbdev/core/fbcon.h" +#include "fbcondecor.h" + +#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; + } +} + +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; + + 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; + } +} + +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); + + kfree(src); +} + +static void decorset(u8 *dst, int height, int width, int dstbytes, + u32 bgx, int bpp) +{ + 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; + } +} + +void fbcon_decor_copy(u8 *dst, u8 *src, int height, int width, int linebytes, + int srclinebytes, int bpp) +{ + int i; + + while (height-- > 0) { + u32 *p = (u32 *)dst; + u32 *q = (u32 *)src; + + switch (bpp) { + + 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 += linebytes; + src += srclinebytes; + } +} + +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; + + fbcon_decor_copy((u8 *)(info->screen_base + d), (u8 *)(info->bgdecor.data + ds), + height, width, info->fix.line_length, info->var.xres * bytespp, + info->var.bits_per_pixel); +} + +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; + u8 *dst; + int transparent, bg_color = attr_bgcol_ec(bgshift, vc, info); + + 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 { + dst = (u8 *)(info->screen_base + sy * info->fix.line_length + + sx * ((info->var.bits_per_pixel + 7) >> 3)); + decorset(dst, height, width, info->fix.line_length, cc2cx(bg_color), + info->var.bits_per_pixel); + } +} + +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((u8 *)info->screen_base, info->var.yres, info->var.xres, + info->fix.line_length, 0, info->var.bits_per_pixel); + } 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 000000000000..78288a497a60 --- /dev/null +++ b/drivers/video/console/fbcondecor.c @@ -0,0 +1,549 @@ +/* + * linux/drivers/video/console/fbcondecor.c -- Framebuffer console decorations + * + * Copyright (C) 2004-2009 Michal Januszewski + * + * Code based upon "Bootsplash" (C) 2001-2003 + * Volker Poplawski , + * Stefan Reinauer , + * Steffen Winterfeldt , + * Michael Schroeder , + * Ken Wimer . + * + * Compat ioctl support by Thorsten Klein . + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include "../fbdev/core/fbcon.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(VERIFY_READ, 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(VERIFY_READ, 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 +}; + +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 000000000000..c49386c16695 --- /dev/null +++ b/drivers/video/console/fbcondecor.h @@ -0,0 +1,77 @@ +/* + * linux/drivers/video/console/fbcondecor.h -- Framebuffer Console Decoration headers + * + * Copyright (C) 2004 Michal Januszewski + * + */ + +#ifndef __FBCON_DECOR_H +#define __FBCON_DECOR_H + +#ifndef _LINUX_FB_H +#include +#endif + +/* This is needed for vc_cons in fbcmap.c */ +#include + +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_copy(u8 *dst, u8 *src, int height, int width, int linebytes, int srclinesbytes, int bpp); +void fbcon_decor_fix_pseudo_pal(struct fb_info *info, struct vc_data *vc); + +/* vt.c */ +void acquire_console_sem(void); +void release_console_sem(void); +void do_unblank_screen(int entering_gfx); + +/* 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/Kconfig b/drivers/video/fbdev/Kconfig index 5e58f5ec0a28..1daa8c2cb2d8 100644 --- a/drivers/video/fbdev/Kconfig +++ b/drivers/video/fbdev/Kconfig @@ -1226,7 +1226,6 @@ config FB_MATROX select FB_CFB_FILLRECT select FB_CFB_COPYAREA select FB_CFB_IMAGEBLIT - select FB_TILEBLITTING select FB_MACMODES if PPC_PMAC ---help--- Say Y here if you have a Matrox Millennium, Matrox Millennium II, diff --git a/drivers/video/fbdev/core/bitblit.c b/drivers/video/fbdev/core/bitblit.c index 790900d646c0..3f940c93752c 100644 --- a/drivers/video/fbdev/core/bitblit.c +++ b/drivers/video/fbdev/core/bitblit.c @@ -18,6 +18,7 @@ #include #include #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); } @@ -379,11 +387,15 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode, 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/fbcmap.c b/drivers/video/fbdev/core/fbcmap.c index 68a113594808..21f977cb59d2 100644 --- a/drivers/video/fbdev/core/fbcmap.c +++ b/drivers/video/fbdev/core/fbcmap.c @@ -17,6 +17,8 @@ #include #include +#include "../../console/fbcondecor.h" + static u16 red2[] __read_mostly = { 0x0000, 0xaaaa }; @@ -256,9 +258,12 @@ 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 04612f938bab..95c349200078 100644 --- a/drivers/video/fbdev/core/fbcon.c +++ b/drivers/video/fbdev/core/fbcon.c @@ -80,6 +80,7 @@ #include #include "fbcon.h" +#include "../../console/fbcondecor.h" #ifdef FBCONDEBUG # define DPRINTK(fmt, args...) printk(KERN_DEBUG "%s: " fmt, __func__ , ## args) @@ -95,7 +96,7 @@ enum { static struct display fb_display[MAX_NR_CONSOLES]; -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 int logo_lines; @@ -282,7 +283,7 @@ static inline int fbcon_is_inactive(struct vc_data *vc, struct fb_info *info) !vt_force_oops_output(vc); } -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); @@ -551,6 +552,9 @@ 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; @@ -1013,6 +1017,12 @@ 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); DPRINTK("mode: %s\n", info->fix.id); @@ -1042,7 +1052,7 @@ static void fbcon_init(struct vc_data *vc, int init) cap = info->flags; 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)) @@ -1275,6 +1285,11 @@ static void fbcon_clear(struct vc_data *vc, int sy, int sx, int height, fbcon_clear_margins(vc, 0); } + if (fbcon_decor_active(info, vc)) { + fbcon_decor_clear(vc, info, sy, sx, height, width); + return; + } + /* Split blits that cross physical y_wrap boundary */ y_break = p->vrows - p->yscroll; @@ -1294,10 +1309,15 @@ static void fbcon_putcs(struct vc_data *vc, const unsigned short *s, struct 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_putc(struct vc_data *vc, int c, int ypos, int xpos) @@ -1313,8 +1333,12 @@ static void fbcon_clear_margins(struct vc_data *vc, int bottom_only) struct fb_info *info = registered_fb[con2fb_map[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, int mode) @@ -1835,7 +1859,7 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b, count = vc->vc_rows; if (softback_top) fbcon_softback_note(vc, t, count); - if (logo_shown >= 0) + if (logo_shown >= 0 || fbcon_decor_active(info, vc)) goto redraw_up; switch (p->scrollmode) { case SCROLL_MOVE: @@ -1928,6 +1952,8 @@ static bool fbcon_scroll(struct vc_data *vc, unsigned int t, unsigned int b, count = vc->vc_rows; if (logo_shown >= 0) goto redraw_down; + if (fbcon_decor_active(info, vc)) + goto redraw_down; switch (p->scrollmode) { case SCROLL_MOVE: fbcon_redraw_blit(vc, info, p, b - 1, b - t - count, @@ -2076,6 +2102,13 @@ static void fbcon_bmove_rec(struct vc_data *vc, struct display *p, int sy, int s } 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); } @@ -2146,8 +2179,8 @@ 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; DPRINTK("attempting resize %ix%i\n", var.xres, var.yres); @@ -2183,6 +2216,22 @@ static int fbcon_switch(struct vc_data *vc) info = registered_fb[con2fb_map[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 (softback_top) { if (softback_lines) @@ -2201,9 +2250,6 @@ static int fbcon_switch(struct vc_data *vc) logo_shown = FBCON_LOGO_CANSHOW; } - prev_console = ops->currcon; - if (prev_console != -1) - old_info = registered_fb[con2fb_map[prev_console]]; /* * FIXME: If we have multiple fbdev's loaded, we need to * update all info->currcon. Perhaps, we can place this @@ -2247,6 +2293,18 @@ static int fbcon_switch(struct vc_data *vc) fbcon_del_cursor_timer(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_timer(info); @@ -2355,15 +2413,20 @@ static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch) } } - if (!fbcon_is_inactive(vc, info)) { + if (!fbcon_is_inactive(vc, info)) { if (ops->blank_state != blank) { ops->blank_state = blank; fbcon_cursor(vc, blank ? CM_ERASE : CM_DRAW); ops->cursor_flash = (!blank); - if (!(info->flags & FBINFO_MISC_USEREVENT)) - if (fb_blank(info, blank)) - fbcon_generic_blank(vc, info, blank); + if (!(info->flags & FBINFO_MISC_USEREVENT)) { + 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) @@ -2546,13 +2609,22 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h, set_vc_hi_font(vc, true); if (resize) { + /* reset wrap/pan */ int cols, rows; 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; + vc_resize(vc, cols, rows); + if (con_is_visible(vc) && softback_buf) fbcon_update_softback(vc); } else if (con_is_visible(vc) @@ -2681,7 +2753,11 @@ 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)) @@ -2707,7 +2783,47 @@ 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); } static u16 *fbcon_screen_pos(struct vc_data *vc, int offset) @@ -2932,7 +3048,14 @@ 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; @@ -2977,7 +3100,8 @@ 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) @@ -3618,6 +3742,7 @@ static void fbcon_exit(void) } } + fbcon_decor_exit(); fbcon_has_exited = 1; } diff --git a/drivers/video/fbdev/core/fbmem.c b/drivers/video/fbdev/core/fbmem.c index f741ba8df01b..b0141433d249 100644 --- a/drivers/video/fbdev/core/fbmem.c +++ b/drivers/video/fbdev/core/fbmem.c @@ -1253,15 +1253,6 @@ 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/include/linux/console_decor.h b/include/linux/console_decor.h new file mode 100644 index 000000000000..15143556c2aa --- /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 + +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 c0ec478ea5bf..8bfed6b21fc9 100644 --- a/include/linux/console_struct.h +++ b/include/linux/console_struct.h @@ -21,6 +21,7 @@ struct vt_struct; struct uni_pagedir; #define NPAR 16 +#include /* * Example: vc_data of a console that was scrolled 3 lines down. @@ -141,6 +142,8 @@ struct vc_data { struct uni_pagedir *vc_uni_pagedir; struct uni_pagedir **vc_uni_pagedir_loc; /* [!] Location of uni_pagedir variable for this console */ bool vc_panic_force_write; /* when oops/panic this VC can accept forced output/blanking */ + + 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 bc24e48e396d..ad7d182c7545 100644 --- a/include/linux/fb.h +++ b/include/linux/fb.h @@ -239,6 +239,34 @@ 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 * @@ -509,6 +537,9 @@ 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; /* we need the PCI or similar aperture base/size not diff --git a/include/uapi/linux/fb.h b/include/uapi/linux/fb.h index 6cd9b198b7c6..a228440649fa 100644 --- a/include/uapi/linux/fb.h +++ b/include/uapi/linux/fb.h @@ -9,6 +9,23 @@ #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 +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 @@ -36,6 +53,25 @@ #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 */ @@ -278,6 +314,29 @@ 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 d9c31bc2eaea..e33ac56cc32a 100644 --- a/kernel/sysctl.c +++ b/kernel/sysctl.c @@ -150,6 +150,10 @@ static const int cap_last_cap = CAP_LAST_CAP; static unsigned long hung_task_timeout_max = (LONG_MAX/HZ); #endif +#ifdef CONFIG_FB_CON_DECOR +extern char fbcon_decor_path[]; +#endif + #ifdef CONFIG_INOTIFY_USER #include #endif @@ -283,6 +287,15 @@ static struct ctl_table sysctl_base_table[] = { .mode = 0555, .child = dev_table, }, +#ifdef CONFIG_FB_CON_DECOR + { + .procname = "fbcondecor", + .data = &fbcon_decor_path, + .maxlen = KMOD_PATH_LEN, + .mode = 0644, + .proc_handler = &proc_dostring, + }, +#endif { } };