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* Make a 1:1 mapping between syscons stats and terminal emulators.Ed Schouten2009-03-101-2/+2
| | | | | | | | | | | | | | | | | | | | | | | After I imported libteken into the source tree, I noticed syscons didn't store the cursor position inside the terminal emulator, but inside the virtual terminal stat. This is not very useful, because when you implement more complex forms of line wrapping, you need to keep track of more state than just the cursor position. Because the kernel messages didn't share the same terminal emulator as ttyv0, this caused a lot of strange things, like kernel messages being misplaced and a missing notification to resize the terminal emulator for kernel messages never to be resized when using vidcontrol. This patch just removes kernel_console_ts and adds a special parameter to te_puts to determine whether messages should be printed using regular colors or the ones for kernel messages. Reported by: ache Tested by: nyan, garga (older version) Notes: svn path=/head/; revision=189617
* Replace syscons terminal renderer by a new renderer that uses libteken.Ed Schouten2009-01-011-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Some time ago I started working on a library called libteken, which is terminal emulator. It does not buffer any screen contents, but only keeps terminal state, such as cursor position, attributes, etc. It should implement all escape sequences that are implemented by the cons25 terminal emulator, but also a fair amount of sequences that are present in VT100 and xterm. A lot of random notes, which could be of interest to users/developers: - Even though I'm leaving the terminal type set to `cons25', users can do experiments with placing `xterm-color' in /etc/ttys. Because we only implement a subset of features of xterm, this may cause artifacts. We should consider extending libteken, because in my opinion xterm is the way to go. Some missing features: - Keypad application mode (DECKPAM) - Character sets (SCS) - libteken is filled with a fair amount of assertions, but unfortunately we cannot go into the debugger anymore if we fail them. I've done development of this library almost entirely in userspace. In sys/dev/syscons/teken there are two applications that can be helpful when debugging the code: - teken_demo: a terminal emulator that can be started from a regular xterm that emulates a terminal using libteken. This application can be very useful to debug any rendering issues. - teken_stress: a stress testing application that emulates random terminal output. libteken has literally survived multiple terabytes of random input. - libteken also includes support for UTF-8, but unfortunately our input layer and font renderer don't support this. If users want to experiment with UTF-8 support, they can enable `TEKEN_UTF8' in teken.h. If you recompile your kernel or the teken_demo application, you can hold some nice experiments. - I've left PC98 the way it is right now. The PC98 platform has a custom syscons renderer, which supports some form of localised input. Maybe we should port PC98 to libteken by the time syscons supports UTF-8? - I've removed the `dumb' terminal emulator. It has been broken for years. It hasn't survived the `struct proc' -> `struct thread' conversion. - To prevent confusion among people that want to hack on libteken: unlike syscons, the state machines that parse the escape sequences are machine generated. This means that if you want to add new escape sequences, you have to add an entry to the `sequences' file. This will cause new entries to be added to `teken_state.h'. - Any rendering artifacts that didn't occur prior to this commit are by accident. They should be reported to me, so I can fix them. Discussed on: current@, hackers@ Discussed with: philip (at 25C3) Notes: svn path=/head/; revision=186681
* Integrate the new MPSAFE TTY layer to the FreeBSD operating system.Ed Schouten2008-08-201-9/+15
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The last half year I've been working on a replacement TTY layer for the FreeBSD kernel. The new TTY layer was designed to improve the following: - Improved driver model: The old TTY layer has a driver model that is not abstract enough to make it friendly to use. A good example is the output path, where the device drivers directly access the output buffers. This means that an in-kernel PPP implementation must always convert network buffers into TTY buffers. If a PPP implementation would be built on top of the new TTY layer (still needs a hooks layer, though), it would allow the PPP implementation to directly hand the data to the TTY driver. - Improved hotplugging: With the old TTY layer, it isn't entirely safe to destroy TTY's from the system. This implementation has a two-step destructing design, where the driver first abandons the TTY. After all threads have left the TTY, the TTY layer calls a routine in the driver, which can be used to free resources (unit numbers, etc). The pts(4) driver also implements this feature, which means posix_openpt() will now return PTY's that are created on the fly. - Improved performance: One of the major improvements is the per-TTY mutex, which is expected to improve scalability when compared to the old Giant locking. Another change is the unbuffered copying to userspace, which is both used on TTY device nodes and PTY masters. Upgrading should be quite straightforward. Unlike previous versions, existing kernel configuration files do not need to be changed, except when they reference device drivers that are listed in UPDATING. Obtained from: //depot/projects/mpsafetty/... Approved by: philip (ex-mentor) Discussed: on the lists, at BSDCan, at the DevSummit Sponsored by: Snow B.V., the Netherlands dcons(4) fixed by: kan Notes: svn path=/head/; revision=181905
* Mark the syscons video spin mutex as recursable since it is currentlyJohn Baldwin2008-02-131-1/+2
| | | | | | | | | recursed in a few places. MFC after: 1 week Notes: svn path=/head/; revision=176259
* Remove explicit calls to keyboard methods with their respective variantsWojciech A. Koszek2007-12-291-20/+0
| | | | | | | | | | | | | | | | | | implemented with macros. This patch improves code readability. Reasoning behind kbdd_* is a "keyboard discipline". List of macros is supposed to be complete--all methods of keyboard_switch should have their respective macros from now on. Functionally, this code should be no-op. My intention is to leave current behaviour of code as is. Glanced at by: rwatson Reviewed by: emax, marcel Approved by: cognet Notes: svn path=/head/; revision=174984
* Serialize output routine of terminal emulator (te_puts()) by a lock.Hidetoshi Shimokawa2007-09-201-0/+1
| | | | | | | | | | | | | | | | | - The output routine of low level console is not protected by any lock by default. - Increment and decrement of sc->write_in_progress are not atomic and this may cause console hang. - We also have many other states used by emulator that should be protected by the lock. - This change does not fix interspersed messages which PRINTF_BUFR_SIZE kernel option should fix. Approved by: re (bmah) MFC after: 1 week Notes: svn path=/head/; revision=172250
* Introduce a spinlock for synchronizing access to the video output hardwareScott Long2006-09-131-1/+17
| | | | | | | | | | | | in syscons. This replaces a simple access semaphore that was assumed to be protected by Giant but often was not. If two threads that were otherwise SMP-safe called printf at the same time, there was a high likelyhood that the semaphore would get corrupted and result in a permanently frozen video console. This is similar to what is already done in the serial console drivers. Notes: svn path=/head/; revision=162285
* Remove various bits of conditional Alpha code and fixup a few comments.John Baldwin2006-05-121-2/+0
| | | | Notes: svn path=/head/; revision=158471
* Add a font width argument to vi_load_font_t, vi_save_font_t and vi_putm_tMarius Strobl2005-09-281-4/+6
| | | | | | | | | | | | | | | | | | | and do some preparations for handling 12x22 fonts (currently lots of code implies and/or hardcodes a font width of 8 pixels). This will be required on sparc64 which uses a default font size of 12x22 in order to add font loading and saving support as well as to use a syscons(4)-supplied mouse pointer image. This API breakage is committed now so it can be MFC'ed in time for 6.0 and later on upcoming framebuffer drivers destined for use on sparc64 and which are expected to rely on using font loading internally and on a syscons(4)-supplied mouse pointer image can be easily MFC'ed to RELENG_6 rather than requiring a backport. Tested on: i386, sparc64, make universe MFC after: 1 week Notes: svn path=/head/; revision=150686
* Prevent division by zero errors in sc_mouse_move()Craig Rodrigues2005-08-301-3/+4
| | | | | | | | | | | | | by explicitly setting sc->font_width, in the same places where sc->font_size is set, instead of relying on the default initialized value of 0 for sc->font_width. PR: kern/84836 Reported by: Andrey V. Elsukov <bu7cher at yandex dot ru> MFC after: 2 days Notes: svn path=/head/; revision=149640
* Add VESA mode support for syscons, which enables the support of 15, 16,Xin LI2005-05-291-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | 24, and 32 bit modes. To use that, syscons(4) must be built with the compile time option 'options SC_PIXEL_MODE', and VESA support (a.k.a. vesa.ko) must be either loaded, or be compiled into the kernel. Do not return EINVAL when the mouse state is changed to what it already is, which seems to cause problems when you have two mice attached, and applications are not likely obtain useful information through the EINVAL caused by showing the mouse pointer twice. Teach vidcontrol(8) about mode names like MODE_<NUMBER>, where <NUMBER> is the video mode number from the vidcontrol -i mode output. Also, revert the video mode if something fails. Obtained from: DragonFlyBSD Discussed at: current@ with patch attached [1] PR: kern/71142 [2] Submitted by: Xuefeng DENG <dsnofe at msn com> [1], Cyrille Lefevre <cyrille dot lefevre at laposte dot net> [2] Notes: svn path=/head/; revision=146736
* On sparc64 use 'syscons' rather than 'sc' for SC_DRIVER_NAME soMarius Strobl2005-05-211-0/+8
| | | | | | | | | | syscons(4) and its pseudo-devices don't get confused (including by other device drivers) with the system controller devices which are also termed 'sc' in the OFW tree (and which we probably want to interface with hwpmc(4) one day). Notes: svn path=/head/; revision=146477
* Change a directory layout for pc98.Yoshihiro Takahashi2005-05-101-1/+1
| | | | | | | | | | | | - Move MD files into <arch>/<arch>. - Move bus dependent files into <arch>/<bus>. Rename some files to more suitable names. Repo-copied by: peter Discussed with: imp Notes: svn path=/head/; revision=146049
* Avoid casts as lvalues.Alexander Kabaev2004-07-281-1/+1
| | | | Notes: svn path=/head/; revision=132772
* Do a pass over all modules in the kernel and make them return EOPNOTSUPPPoul-Henning Kamp2004-07-151-0/+2
| | | | | | | | | | | for unknown events. A number of modules return EINVAL in this instance, and I have left those alone for now and instead taught MOD_QUIESCE to accept this as "didn't do anything". Notes: svn path=/head/; revision=132199
* Do the dreaded s/dev_t/struct cdev */Poul-Henning Kamp2004-06-161-2/+2
| | | | | | | Bump __FreeBSD_version accordingly. Notes: svn path=/head/; revision=130585
* - Add a font width field to struct scr_stat. Use this instead of '8'.Jake Burkholder2003-08-241-0/+1
| | | | | | | | - Use the values in the video info for the font size and width instead of second guessing. Notes: svn path=/head/; revision=119388
* Add sparc64 ifdefs.Jake Burkholder2003-08-241-0/+2
| | | | Notes: svn path=/head/; revision=119379
* Add a VT_LOCKSWITCH ioctl that disallows vty switching. SomethingDima Dorfman2002-07-101-0/+1
| | | | | | | | | | | like this can be emulated by VT_SETMODEing to VT_PROCESS and never releasing the vty, but this has a number of problems, most notably that a process must stay resident for the lock to be in effect. Reviewed by: roam, sheldonh Notes: svn path=/head/; revision=99704
* Turn on TGA support.David E. O'Brien2002-04-131-2/+9
| | | | | | | Submitted by: Andrew M. Miklic <AndrwMklc@cs.com> Notes: svn path=/head/; revision=94617
* KSE Milestone 2Julian Elischer2001-09-121-5/+5
| | | | | | | | | | | | | | | | | Note ALL MODULES MUST BE RECOMPILED make the kernel aware that there are smaller units of scheduling than the process. (but only allow one thread per process at this time). This is functionally equivalent to teh previousl -current except that there is a thread associated with each process. Sorry john! (your next MFC will be a doosie!) Reviewed by: peter@freebsd.org, dillon@freebsd.org X-MFC after: ha ha ha ha Notes: svn path=/head/; revision=83366
* Fix some malformed macro concatenation that gcc-3 has objections about.Peter Wemm2001-09-101-4/+4
| | | | Notes: svn path=/head/; revision=83274
* Refine cursor type/shape control escape sequences andKazutaka YOKOTA2001-08-021-4/+16
| | | | | | | | | | ioctls. We can now add ve, vi and vs capabilities to cons25 in termcap. Discussed with and tested by: ache Notes: svn path=/head/; revision=81030
* Fix dependencies between kernel options:Kazutaka YOKOTA2001-07-101-6/+14
| | | | | | | | | | | | | - When both SC_PIXEL_MODE and SC_NO_FONT_LOADING are defined, quietly drop SC_NO_FONT_LOADING, because the pixel(raster) console requires font. - When SC_NO_FONT_LOADING is defined, force SC_ALT_MOUSE_IMAGE. Without font, the arrow-shaped mouse cursor cannot be drawn. - Fiddle and simplify some internal macros. MFC after: 2 weeks Notes: svn path=/head/; revision=79534
* Remove the resume method. It is not necessary any more, becauseKazutaka YOKOTA2001-06-301-1/+0
| | | | | | | | keyboard drivers have it now... MFC after: 4 weeks Notes: svn path=/head/; revision=79023
* Don't free buffers we didn't allocate.Kazutaka YOKOTA2001-06-291-0/+1
| | | | | | | MFC after: 2 weeks Notes: svn path=/head/; revision=78956
* With this commit, I hereby pronounce gensetdefs past its use-by date.Peter Wemm2001-06-131-11/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Replace the a.out emulation of 'struct linker_set' with something a little more flexible. <sys/linker_set.h> now provides macros for accessing elements and completely hides the implementation. The linker_set.h macros have been on the back burner in various forms since 1998 and has ideas and code from Mike Smith (SET_FOREACH()), John Polstra (ELF clue) and myself (cleaned up API and the conversion of the rest of the kernel to use it). The macros declare a strongly typed set. They return elements with the type that you declare the set with, rather than a generic void *. For ELF, we use the magic ld symbols (__start_<setname> and __stop_<setname>). Thanks to Richard Henderson <rth@redhat.com> for the trick about how to force ld to provide them for kld's. For a.out, we use the old linker_set struct. NOTE: the item lists are no longer null terminated. This is why the code impact is high in certain areas. The runtime linker has a new method to find the linker set boundaries depending on which backend format is in use. linker sets are still module/kld unfriendly and should never be used for anything that may be modular one day. Reviewed by: eivind Notes: svn path=/head/; revision=78161
* Make the beep duration independent of HZ.Poul-Henning Kamp2001-05-281-1/+1
| | | | | | | | | PR: 25201 Submitted by: Akio Morita amorita@meadow.scphys.kyoto-u.ac.jp MFC after: 1 week Notes: svn path=/head/; revision=77364
* Implement keyboard pasteAndrey A. Chernov2001-03-111-0/+2
| | | | | | | | PR: 25499 Submitted by: Gaspar Chilingarov <nm@web.am> Notes: svn path=/head/; revision=74118
* Back out the previous change to the queue(3) interface.Jake Burkholder2000-05-261-2/+2
| | | | | | | | | It was not discussed and should probably not happen. Requested by: msmith and others Notes: svn path=/head/; revision=60938
* Change the way that the queue(3) structures are declared; don't assume thatJake Burkholder2000-05-231-2/+2
| | | | | | | | | | | the type argument to *_HEAD and *_ENTRY is a struct. Suggested by: phk Reviewed by: phk Approved by: mdodd Notes: svn path=/head/; revision=60833
* Unbreak LINT.Kazutaka YOKOTA2000-04-031-0/+4
| | | | Notes: svn path=/head/; revision=58965
* - Fix SC_ALT_MOUSE_IMAGE; don't blink the mouse cursor.Kazutaka YOKOTA2000-03-311-13/+26
| | | | | | | - Fix non-destructive, underline text cursor. Notes: svn path=/head/; revision=58872
* Unconditionally define sc_paste().Kazutaka YOKOTA2000-01-201-2/+0
| | | | Notes: svn path=/head/; revision=56329
* Fix wrong usage of FONT_NONE. It was not meant to be set inKazutaka YOKOTA2000-01-201-1/+0
| | | | | | | | | | scp->font_size in the first place. It is redundant now and is removed. Found by: bde Notes: svn path=/head/; revision=56328
* This is the 3rd stage of syscons code reorganization.Kazutaka YOKOTA2000-01-151-64/+158
| | | | | | | | | | | | | | | | | | - Split terminal emulation code from the main part of the driver so that we can have alternative terminal emulator modules if we like in the future. (We are not quite there yet, though.) - Put sysmouse related code in a separate file, thus, simplifying the main part of the driver. As some files are added to the source tree, you need to run config(8) before you compile a new kernel next time. You shouldn't see any functional change by this commit; this is only internal code reorganization. Notes: svn path=/head/; revision=56043
* Make the mouse cursor char code configurable via the CONS_MOUSECTLKazutaka YOKOTA2000-01-121-0/+6
| | | | | | | | | ioctl. By popular demand. Notes: svn path=/head/; revision=55849
* This patch clears the way for removing a number of tty relatedPoul-Henning Kamp1999-09-251-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | fields in struct cdevsw: d_stop moved to struct tty. d_reset already unused. d_devtotty linkage now provided by dev_t->si_tty. These fields will be removed from struct cdevsw together with d_params and d_maxio Real Soon Now. The changes in this patch consist of: initialize dev->si_tty in *_open() initialize tty->t_stop remove devtotty functions rename ttpoll to ttypoll a few adjustments to these changes in the generic code a bump of __FreeBSD_version add a couple of FreeBSD tags Notes: svn path=/head/; revision=51654
* - Hang the scr_stat struct from dev_t.Kazutaka YOKOTA1999-09-191-3/+3
| | | | | | | | | | | | | | | | - Remove sc_get_scr_stat(). It's not necessary anymore. - Call ttymalloc() to allocate the struct tty for each vty, rather than statically declaring an array of struct tty. We still need a statically allocated struct tty for the first vty which is used for the kernel console I/O, though. - Likewise, call ttymalloc() for /dev/sysmouse and /dev/consolectl. - Delete unnecessary test on the pointer struct tty *tp in some functions. - Delete unused code in scmouse.c. WARNING: this change requires you to recompile screen savers! Notes: svn path=/head/; revision=51404
* - Preserve the content of the back scroll buffer when changing theKazutaka YOKOTA1999-09-191-0/+1
| | | | | | | | | | video mode. Requested by: a lot of people. PR: kern/13764 Notes: svn path=/head/; revision=51394
* $Id$ -> $FreeBSD$Peter Wemm1999-08-281-1/+1
| | | | Notes: svn path=/head/; revision=50477
* Convert DEVFS hooks in (most) drivers to make_dev().Poul-Henning Kamp1999-08-231-6/+1
| | | | | | | | | | | | | | | | | | | Diskslice/label code not yet handled. Vinum, i4b, alpha, pc98 not dealt with (left to respective Maintainers) Add the correct hook for devfs to kern_conf.c The net result of this excercise is that a lot less files depends on DEVFS, and devtoname() gets more sensible output in many cases. A few drivers had minor additional cleanups performed relating to cdevsw registration. A few drivers don't register a cdevsw{} anymore, but only use make_dev(). Notes: svn path=/head/; revision=50254
* First small steps at merging DEVFS and PHK's Dev_t stuff.Julian Elischer1999-08-201-2/+5
| | | | Notes: svn path=/head/; revision=50092
* - Fixed memory leak in sc_alloc_history_buffer().Kazutaka YOKOTA1999-07-071-2/+4
| | | | | | | | | | | - Correctly observe the variable `extra_history_size' when changing the size of history (scroll back) buffer. - Added sc_free_history_buffer(). Pointed out by: des Notes: svn path=/head/; revision=48667
* Fix ESC[P (delete N chars) and ESC[@ (insert N chars). These deletionKazutaka YOKOTA1999-06-241-1/+2
| | | | | | | | | | | | and insertion should affect the line the cursor is on only. This change should have been committed together with syscons.c rev 1.308. (I forgot to do so, when I committed syscons.c :-( Pointed out by: sos Notes: svn path=/head/; revision=48189
* The second phase of syscons reorganization.Kazutaka YOKOTA1999-06-221-69/+342
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Split syscons source code into manageable chunks and reorganize some of complicated functions. - Many static variables are moved to the softc structure. - Added a new key function, PREV. When this key is pressed, the vty immediately before the current vty will become foreground. Analogue to PREV, which is usually assigned to the PrntScrn key. PR: kern/10113 Submitted by: Christian Weisgerber <naddy@mips.rhein-neckar.de> - Modified the kernel console input function sccngetc() so that it handles function keys properly. - Reorganized the screen update routine. - VT switching code is reorganized. It now should be slightly more robust than before. - Added the DEVICE_RESUME function so that syscons no longer hooks the APM resume event directly. - New kernel configuration options: SC_NO_CUTPASTE, SC_NO_FONT_LOADING, SC_NO_HISTORY and SC_NO_SYSMOUSE. Various parts of syscons can be omitted so that the kernel size is reduced. SC_PIXEL_MODE Made the VESA 800x600 mode an option, rather than a standard part of syscons. SC_DISABLE_DDBKEY Disables the `debug' key combination. SC_ALT_MOUSE_IMAGE Inverse the character cell at the mouse cursor position in the text console, rather than drawing an arrow on the screen. Submitted by: Nick Hibma (n_hibma@FreeBSD.ORG) SC_DFLT_FONT makeoptions "SC_DFLT_FONT=_font_name_" Include the named font as the default font of syscons. 16-line, 14-line and 8-line font data will be compiled in. This option replaces the existing STD8X16FONT option, which loads 16-line font data only. - The VGA driver is split into /sys/dev/fb/vga.c and /sys/isa/vga_isa.c. - The video driver provides a set of ioctl commands to manipulate the frame buffer. - New kernel configuration option: VGA_WIDTH90 Enables 90 column modes: 90x25, 90x30, 90x43, 90x50, 90x60. These modes are mot always supported by the video card. PR: i386/7510 Submitted by: kbyanc@freedomnet.com and alexv@sui.gda.itesm.mx. - The header file machine/console.h is reorganized; its contents is now split into sys/fbio.h, sys/kbio.h (a new file) and sys/consio.h (another new file). machine/console.h is still maintained for compatibility reasons. - Kernel console selection/installation routines are fixed and slightly rebumped so that it should now be possible to switch between the interanl kernel console (sc or vt) and a remote kernel console (sio) again, as it was in 2.x, 3.0 and 3.1. - Screen savers and splash screen decoders Because of the header file reorganization described above, screen savers and splash screen decoders are slightly modified. After this update, /sys/modules/syscons/saver.h is no longer necessary and is removed. Notes: svn path=/head/; revision=48104
* Centralize and reorganize a few macros.Dag-Erling Smørgrav1999-04-121-5/+1
| | | | Notes: svn path=/head/; revision=45616
* sysconsKazutaka YOKOTA1999-01-191-1/+6
| | | | | | | | | | | | | | | | | | | | - Bring down the splash screen when a vty is opened for the first time. - Make sure the splash screen/screen saver is stopped before switching vtys. - Read and save initial values in the BIOS data area early. VESA BIOS may change BIOS data values when switching modes. - Fix missing '&' operator. - Move ISA specific part of driver initialization to syscons_isa.c. atkbd - kbdtables.h is now in /sys/dev/kbd. all - Adjust for forthcoming alpha port. Submitted by: dfr Notes: svn path=/head/; revision=42831
* The first stage of console driver reorganization: activate newKazutaka YOKOTA1999-01-111-25/+16
| | | | | | | | | | | | | | | | keyboard and video card drivers. Because of the changes, you are required to update your kernel configuration file now! The files in sys/dev/syscons are still i386-specific (but less so than before), and won't compile for alpha and PC98 yet. syscons still directly accesses the video card registers here and there; this will be rectified in the later stages. Notes: svn path=/head/; revision=42504
* Yet another round of fixes for the VESA support code.Kazutaka YOKOTA1998-10-011-2/+1
| | | | | | | | | | | | | | | | | - Express various sizes in bytes, rather than Kbytes, in the video mode and adapter information structures. - Fill 0 in the linear buffer size field if the linear frame buffer is not available. - Remove SW_VESA_USER ioctl. It is still experimetal and was not meant to be released. - Fix missing cast operator. - Correctly handle pointers returned by the VESA BIOS. The pointers may point to the area either in the BIOS ROM or in the buffer supplied by the caller. - Set the destructive cursor at the right moment. Notes: svn path=/head/; revision=39858
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