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OpenCloudOS-Kernel/include/linux/vt_kern.h

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Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#ifndef _VT_KERN_H
#define _VT_KERN_H
/*
* this really is an extension of the vc_cons structure in console.c, but
* with information needed by the vt package
*/
#include <linux/vt.h>
#include <linux/kd.h>
#include <linux/tty.h>
use mutex instead of semaphore in virtual console driver The virtual console driver uses a semaphore as mutex. Use the mutex API instead of the (binary) semaphore. Signed-off-by: Matthias Kaehlcke <matthias.kaehlcke@gmail.com> Cc: "Antonino A. Daplas" <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 15:39:49 +08:00
#include <linux/mutex.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#include <linux/console_struct.h>
#include <linux/mm.h>
Make console charset translation optional By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-03 21:59:40 +08:00
#include <linux/consolemap.h>
vt: move kernel stuff out of vt.h We have vt_kern.h for this Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-20 04:13:25 +08:00
#include <linux/notifier.h>
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/*
* Presently, a lot of graphics programs do not restore the contents of
* the higher font pages. Defining this flag will avoid use of them, but
* will lose support for PIO_FONTRESET. Note that many font operations are
* not likely to work with these programs anyway; they need to be
* fixed. The linux/Documentation directory includes a code snippet
* to save and restore the text font.
*/
#ifdef CONFIG_VGA_CONSOLE
#define BROKEN_GRAPHICS_PROGRAMS 1
#endif
extern void kd_mksound(unsigned int hz, unsigned int ticks);
extern int kbd_rate(struct kbd_repeat *rep);
[PATCH] vt: Remove VT-specific declarations and definitions from tty.h MAX_NR_CONSOLES, fg_console, want_console and last_console are more of a function of the VT layer than the TTY one. Moving these to vt.h and vt_kern.h allows all of the framebuffer and VT console drivers to remove their dependency on tty.h. [akpm@osdl.org: fix alpha build] Signed-off-by: Jon Smirl <jonsmir@gmail.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-10 19:44:12 +08:00
extern int fg_console, last_console, want_console;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* console.c */
int vc_allocate(unsigned int console);
int vc_cons_allocated(unsigned int console);
int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines);
[PATCH] tty locking on resize The current kernel serializes console resizes but does not serialize the resize against the tty structure updates. This means that while two parallel resizes cannot mess up the console you can get incorrect results reported. Secondly while doing this I added vc_lock_resize() to lock and resize the console. This leaves all knowledge of the console_sem in the vt/console driver and kicks it out of the tty layer, which is good Thirdly while doing this I decided I couldn't stand "disallocate" any longer so I switched it to "deallocate". Signed-off-by: Alan Cox <alan@redhat.com> Cc: Paul Fulghum <paulkf@microgate.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-29 17:00:03 +08:00
void vc_deallocate(unsigned int console);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
void reset_palette(struct vc_data *vc);
void do_blank_screen(int entering_gfx);
void do_unblank_screen(int leaving_gfx);
void unblank_screen(void);
void poke_blanked_console(void);
int con_font_op(struct vc_data *vc, struct console_font_op *op);
int con_set_cmap(unsigned char __user *cmap);
int con_get_cmap(unsigned char __user *cmap);
void scrollback(struct vc_data *vc, int lines);
void scrollfront(struct vc_data *vc, int lines);
void update_region(struct vc_data *vc, unsigned long start, int count);
void redraw_screen(struct vc_data *vc, int is_switch);
#define update_screen(x) redraw_screen(x, 0)
#define switch_screen(x) redraw_screen(x, 1)
struct tty_struct;
int tioclinux(struct tty_struct *tty, unsigned long arg);
Make console charset translation optional By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-03 21:59:40 +08:00
#ifdef CONFIG_CONSOLE_TRANSLATIONS
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* consolemap.c */
struct unimapinit;
struct unipair;
int con_set_trans_old(unsigned char __user * table);
int con_get_trans_old(unsigned char __user * table);
int con_set_trans_new(unsigned short __user * table);
int con_get_trans_new(unsigned short __user * table);
int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui);
int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list);
int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct, struct unipair __user *list);
int con_set_default_unimap(struct vc_data *vc);
void con_free_unimap(struct vc_data *vc);
void con_protect_unimap(struct vc_data *vc, int rdonly);
int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc);
Make console charset translation optional By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-03 21:59:40 +08:00
#define vc_translate(vc, c) ((vc)->vc_translate[(c) | \
embedded: fix vc_translate operator precedence This fixes a bug in operator precedence in the newly introduced vc_translate macro. Without this fix, the translation of some characters on the kernel console is garbled. This patch was copied to the e-mail list previously for testing. Now, all reports confirm that it works, so this is an official post for application. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
2008-08-02 05:05:50 +08:00
((vc)->vc_toggle_meta ? 0x80 : 0)])
Make console charset translation optional By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-03 21:59:40 +08:00
#else
vt: Fix warning: statement with no effect due to vt_kern.h Using: gcc (GCC) 4.5.0 20100610 (prerelease) with CONFIG_CONSOLE_TRANSLATIONS=n, the following warnings are seen: drivers/char/vt_ioctl.c: In function ‘vt_ioctl’: drivers/char/vt_ioctl.c:1309:4: warning: statement with no effect drivers/char/vt.c: In function ‘vc_allocate’: drivers/char/vt.c:774:3: warning: statement with no effect drivers/video/console/vgacon.c: In function ‘vgacon_init’: drivers/video/console/vgacon.c:587:3: warning: statement with no effect drivers/video/console/vgacon.c: In function ‘vgacon_deinit’: drivers/video/console/vgacon.c:606:2: warning: statement with no effect drivers/video/console/fbcon.c: In function ‘fbcon_init’: drivers/video/console/fbcon.c:1087:3: warning: statement with no effect drivers/video/console/fbcon.c:1089:3: warning: statement with no effect drivers/video/console/fbcon.c: In function ‘fbcon_set_disp’: drivers/video/console/fbcon.c:1369:3: warning: statement with no effect drivers/video/console/fbcon.c:1371:3: warning: statement with no effect This is because several functions in include/linux/vt_kern.h are defined to (0). Convert them to static inline functions to silence the warnings and gain a bit of type safety. Signed-off-by: Kevin Winchester <kjwinchester@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-07-11 05:57:56 +08:00
static inline int con_set_trans_old(unsigned char __user *table)
{
return 0;
}
static inline int con_get_trans_old(unsigned char __user *table)
{
return -EINVAL;
}
static inline int con_set_trans_new(unsigned short __user *table)
{
return 0;
}
static inline int con_get_trans_new(unsigned short __user *table)
{
return -EINVAL;
}
static inline int con_clear_unimap(struct vc_data *vc, struct unimapinit *ui)
{
return 0;
}
static inline
int con_set_unimap(struct vc_data *vc, ushort ct, struct unipair __user *list)
{
return 0;
}
static inline
int con_get_unimap(struct vc_data *vc, ushort ct, ushort __user *uct,
struct unipair __user *list)
{
return -EINVAL;
}
static inline int con_set_default_unimap(struct vc_data *vc)
{
return 0;
}
static inline void con_free_unimap(struct vc_data *vc)
{
}
static inline void con_protect_unimap(struct vc_data *vc, int rdonly)
{
}
static inline
int con_copy_unimap(struct vc_data *dst_vc, struct vc_data *src_vc)
{
return 0;
}
Make console charset translation optional By turning off the new CONSOLE_TRANSLATIONS option and dropping the associated code and tables from the kernel, we can save about 7KiB. Taken from linux-tiny project by Tim Bird and mangled further by dwmw2. Signed-off-by: Tim Bird <tim.bird@am.sony.com> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2008-06-03 21:59:40 +08:00
#define vc_translate(vc, c) (c)
#endif
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
/* vt.c */
vt: add an event interface This is needed and requested in various forms for ConsoleKit, screenblank handling and the like so do the job with a single interface. Also build the interface so that unlike VT_WAITACTIVE and friends it won't miss events. FIXME: Should this be a waitactive ioctl or a new device file you can poll and read events from. We need the code anyway to fix up the existing broken wait for console switch logic but the ConsoleKit people would prefer the new device to the ioctl we have here Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-20 04:13:24 +08:00
void vt_event_post(unsigned int event, unsigned int old, unsigned int new);
int vt_waitactive(int n);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
void change_console(struct vc_data *new_vc);
void reset_vc(struct vc_data *vc);
fbcon: allow fbcon to use the primary display driver Allow fbcon to select the primary display adapter using the fb_is_primary_device() arch-specific helper. If a a primary adapter is detected, fbcon will unbind the old adapter from the VT layer, then rebind using the new adapter. This requires that bind_/unbind_con_driver() be made public. Because this feature may produce unexpected behavior (from the user's POV), this must be explicitly enabled in Kconfig. [akpm@linux-foundation.org: export unbind_con_driver] Signed-off-by: Antonino Daplas <adaplas@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 19:05:28 +08:00
extern int unbind_con_driver(const struct consw *csw, int first, int last,
int deflt);
tty: Remove more special casing and out of place code Carry on pushing code out of tty_io when it belongs to other drivers. I'm not 100% happy with some of this and it will be worth revisiting some of the exports later when the restructuring work is done. Signed-off-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-10-13 17:41:42 +08:00
int vty_init(const struct file_operations *console_fops);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
vt/console: try harder to print output when panicing Jesse's initial patch commit said: "At panic time (i.e. when oops_in_progress is set) we should try a bit harder to update the screen and make sure output gets to the VT, since some drivers are capable of flipping back to it. So make sure we try to unblank and update the display if called from a panic context." I've enhanced this to add a flag to the vc that console layer can set to indicate they want this behaviour to occur. This also adds support to fbcon for that flag and adds an fb flag for drivers to indicate they want to use the support. It enables this for KMS drivers. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org> Acked-by: James Simmons <jsimmons@infradead.org> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2010-06-24 03:56:12 +08:00
static inline bool vt_force_oops_output(struct vc_data *vc)
{
if (oops_in_progress && vc->vc_panic_force_write)
return true;
return false;
}
[PATCH] swsusp: fix suspend when console is in VT_AUTO+KD_GRAPHICS mode When the console is in VT_AUTO+KD_GRAPHICS mode, switching to the SUSPEND_CONSOLE fails, resulting in vt_waitactive() waiting indefinitely or until the task is interrupted. This patch tests if a console switch can occur in set_console() and returns early if a console switch is not possible. [akpm@linux-foundation.org: cleanup] Signed-off-by: Andrew Johnson <ajohnson@intrinsyc.com> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: "Antonino A. Daplas" <adaplas@pol.net> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-03-17 05:38:24 +08:00
extern char vt_dont_switch;
add CONFIG_VT_UNICODE As of now, the kernel defaults to non-unicode and XLATE for the keyboard. We've been changing this in Fedora, but that requires patching the defaults in the kernel. The attached introduces CONFIG_VT_UNICODE, which sets the console in unicode mode by default on boot, including both the virtual terminal and the keyboard driver. Signed-off-by: Bill Nottingham <notting@redhat.com> Cc: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Dmitry Torokhov <dtor@mail.ru> Cc: Jiri Kosina <jkosina@suse.cz> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 14:29:38 +08:00
extern int default_utf8;
vc: Add support for hiding the cursor when creating VTs Add support for setting a global default for whether or not a visible cursor should be enabled when creating VCs. The default will be to do so, unless overridden by the user at boot time or by a driver. Signed-off-by: Matthew Garrett <mjg@redhat.com> LKML-Reference: <1258143251-5818-1-git-send-email-mjg@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-11-14 04:14:11 +08:00
extern int global_cursor_default;
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
[PATCH] vt: rework the console spawning variables This is such a rare path it took me a while to figure out how to test this after soring out the locking. This patch does several things. - The variables used are moved into a structure and declared in vt_kern.h - A spinlock is added so we don't have SMP races updating the values. - Instead of raw pid_t value a struct_pid is used to guard against pid wrap around issues, if the daemon to spawn a new console dies. Signed-off-by: Eric W. Biederman <ebiederm@xmission.com> Cc: Oleg Nesterov <oleg@tv-sign.ru> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-02 17:17:13 +08:00
struct vt_spawn_console {
spinlock_t lock;
struct pid *pid;
int sig;
};
extern struct vt_spawn_console vt_spawn_con;
vt: remove power stuff from kernel/power In the past someone gratuitiously borrowed chunks of kernel internal vt code and dumped them in kernel/power. They have all sorts of deep relations with the vt code so put them in the vt tree instead Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-20 04:13:25 +08:00
extern int vt_move_to_console(unsigned int vt, int alloc);
vt: move kernel stuff out of vt.h We have vt_kern.h for this Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2009-09-20 04:13:25 +08:00
/* Interfaces for VC notification of character events (for accessibility etc) */
struct vt_notifier_param {
struct vc_data *vc; /* VC on which the update happened */
unsigned int c; /* Printed char */
};
extern int register_vt_notifier(struct notifier_block *nb);
extern int unregister_vt_notifier(struct notifier_block *nb);
vc: Add support for hiding the cursor when creating VTs Add support for setting a global default for whether or not a visible cursor should be enabled when creating VCs. The default will be to do so, unless overridden by the user at boot time or by a driver. Signed-off-by: Matthew Garrett <mjg@redhat.com> LKML-Reference: <1258143251-5818-1-git-send-email-mjg@redhat.com> Signed-off-by: H. Peter Anvin <hpa@zytor.com>
2009-11-14 04:14:11 +08:00
extern void hide_boot_cursor(bool hide);
Linux-2.6.12-rc2 Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
2005-04-17 06:20:36 +08:00
#endif /* _VT_KERN_H */