* by Martin Mares <mj@atrey.karlin.mff.cuni.cz>, July 1998
*
* Removed old-style timers, introduced console_timer, made timer
- * deletion SMP-safe. 17Jun00, Andrew Morton <andrewm@uow.edu.au>
+ * deletion SMP-safe. 17Jun00, Andrew Morton
*
* Removed console_lock, enabled interrupts across all console operations
* 13 March 2001, Andrew Morton
#include <linux/mm.h>
#include <linux/console.h>
#include <linux/init.h>
+#include <linux/mutex.h>
#include <linux/vt_kern.h>
#include <linux/selection.h>
+#include <linux/smp_lock.h>
#include <linux/tiocl.h>
#include <linux/kbd_kern.h>
#include <linux/consolemap.h>
#include <linux/timer.h>
#include <linux/interrupt.h>
#include <linux/workqueue.h>
-#include <linux/bootmem.h>
#include <linux/pm.h>
#include <linux/font.h>
#include <linux/bitops.h>
-
-#include <asm/io.h>
+#include <linux/notifier.h>
+#include <linux/device.h>
+#include <linux/io.h>
#include <asm/system.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
#define MAX_NR_CON_DRIVER 16
static void set_palette(struct vc_data *vc);
static int printable; /* Is console ready for printing? */
+int default_utf8 = true;
+module_param(default_utf8, int, S_IRUGO | S_IWUSR);
/*
* ignore_poke: don't unblank the screen when things are typed. This is
int console_blanked;
static int vesa_blank_mode; /* 0:none 1:suspendV 2:suspendH 3:powerdown */
-static int blankinterval = 10*60*HZ;
static int vesa_off_interval;
+static int blankinterval = 10*60;
+core_param(consoleblank, blankinterval, int, 0444);
static DECLARE_WORK(console_work, console_callback);
};
/*
+ * Notifier list for console events.
+ */
+static ATOMIC_NOTIFIER_HEAD(vt_notifier_list);
+
+int register_vt_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_register(&vt_notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(register_vt_notifier);
+
+int unregister_vt_notifier(struct notifier_block *nb)
+{
+ return atomic_notifier_chain_unregister(&vt_notifier_list, nb);
+}
+EXPORT_SYMBOL_GPL(unregister_vt_notifier);
+
+static void notify_write(struct vc_data *vc, unsigned int unicode)
+{
+ struct vt_notifier_param param = { .vc = vc, unicode = unicode };
+ atomic_notifier_call_chain(&vt_notifier_list, VT_WRITE, ¶m);
+}
+
+static void notify_update(struct vc_data *vc)
+{
+ struct vt_notifier_param param = { .vc = vc };
+ atomic_notifier_call_chain(&vt_notifier_list, VT_UPDATE, ¶m);
+}
+/*
* Low-Level Functions
*/
#ifdef VT_BUF_VRAM_ONLY
#define DO_UPDATE(vc) 0
#else
-#define DO_UPDATE(vc) CON_IS_VISIBLE(vc)
+#define DO_UPDATE(vc) (CON_IS_VISIBLE(vc) && !console_blanked)
#endif
static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed)
* Bit 7 : blink
*/
{
- u8 a = vc->vc_color;
+ u8 a = _color;
if (!vc->vc_can_do_color)
return _intensity |
(_italic ? 2 : 0) |
if (is_switch) {
set_leds();
compute_shiftstate();
+ notify_update(vc);
}
}
return -ENXIO;
if (!vc_cons[currcons].d) {
struct vc_data *vc;
+ struct vt_notifier_param param;
/* prevent users from taking too much memory */
if (currcons >= MAX_NR_USER_CONSOLES && !capable(CAP_SYS_RESOURCE))
/* although the numbers above are not valid since long ago, the
point is still up-to-date and the comment still has its value
even if only as a historical artifact. --mj, July 1998 */
- vc = kmalloc(sizeof(struct vc_data), GFP_KERNEL);
+ param.vc = vc = kzalloc(sizeof(struct vc_data), GFP_KERNEL);
if (!vc)
return -ENOMEM;
- memset(vc, 0, sizeof(*vc));
vc_cons[currcons].d = vc;
INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
visual_init(vc, currcons, 1);
if (!*vc->vc_uni_pagedir_loc)
con_set_default_unimap(vc);
- if (!vc->vc_kmalloced)
- vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
+ vc->vc_screenbuf = kmalloc(vc->vc_screenbuf_size, GFP_KERNEL);
if (!vc->vc_screenbuf) {
kfree(vc);
vc_cons[currcons].d = NULL;
return -ENOMEM;
}
- vc->vc_kmalloced = 1;
vc_init(vc, vc->vc_rows, vc->vc_cols, 1);
+ vcs_make_sysfs(currcons);
+ atomic_notifier_call_chain(&vt_notifier_list, VT_ALLOCATE, ¶m);
}
return 0;
}
-static inline int resize_screen(struct vc_data *vc, int width, int height)
+static inline int resize_screen(struct vc_data *vc, int width, int height,
+ int user)
{
/* Resizes the resolution of the display adapater */
int err = 0;
if (vc->vc_mode != KD_GRAPHICS && vc->vc_sw->con_resize)
- err = vc->vc_sw->con_resize(vc, width, height);
+ err = vc->vc_sw->con_resize(vc, width, height, user);
+
return err;
}
*/
#define VC_RESIZE_MAXCOL (32767)
#define VC_RESIZE_MAXROW (32767)
-int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines)
+
+/**
+ * vc_do_resize - resizing method for the tty
+ * @tty: tty being resized
+ * @real_tty: real tty (different to tty if a pty/tty pair)
+ * @vc: virtual console private data
+ * @cols: columns
+ * @lines: lines
+ *
+ * Resize a virtual console, clipping according to the actual constraints.
+ * If the caller passes a tty structure then update the termios winsize
+ * information and perform any neccessary signal handling.
+ *
+ * Caller must hold the console semaphore. Takes the termios mutex and
+ * ctrl_lock of the tty IFF a tty is passed.
+ */
+
+static int vc_do_resize(struct tty_struct *tty, struct vc_data *vc,
+ unsigned int cols, unsigned int lines)
{
unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0;
unsigned int old_cols, old_rows, old_row_size, old_screen_size;
unsigned int new_cols, new_rows, new_row_size, new_screen_size;
- unsigned int end;
+ unsigned int end, user;
unsigned short *newscreen;
WARN_CONSOLE_UNLOCKED();
if (!vc)
return -ENXIO;
+ user = vc->vc_resize_user;
+ vc->vc_resize_user = 0;
+
if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW)
return -EINVAL;
old_row_size = vc->vc_size_row;
old_screen_size = vc->vc_screenbuf_size;
- err = resize_screen(vc, new_cols, new_rows);
+ err = resize_screen(vc, new_cols, new_rows, user);
if (err) {
kfree(newscreen);
return err;
if (new_scr_end > new_origin)
scr_memsetw((void *)new_origin, vc->vc_video_erase_char,
new_scr_end - new_origin);
- if (vc->vc_kmalloced)
- kfree(vc->vc_screenbuf);
+ kfree(vc->vc_screenbuf);
vc->vc_screenbuf = newscreen;
- vc->vc_kmalloced = 1;
vc->vc_screenbuf_size = new_screen_size;
set_origin(vc);
gotoxy(vc, vc->vc_x, vc->vc_y);
save_cur(vc);
- if (vc->vc_tty) {
- struct winsize ws, *cws = &vc->vc_tty->winsize;
-
+ if (tty) {
+ /* Rewrite the requested winsize data with the actual
+ resulting sizes */
+ struct winsize ws;
memset(&ws, 0, sizeof(ws));
ws.ws_row = vc->vc_rows;
ws.ws_col = vc->vc_cols;
ws.ws_ypixel = vc->vc_scan_lines;
- if ((ws.ws_row != cws->ws_row || ws.ws_col != cws->ws_col) &&
- vc->vc_tty->pgrp)
- kill_pgrp(vc->vc_tty->pgrp, SIGWINCH, 1);
- *cws = ws;
+ tty_do_resize(tty, &ws);
}
if (CON_IS_VISIBLE(vc))
update_screen(vc);
+ vt_event_post(VT_EVENT_RESIZE, vc->vc_num, vc->vc_num);
return err;
}
-int vc_lock_resize(struct vc_data *vc, unsigned int cols, unsigned int lines)
+/**
+ * vc_resize - resize a VT
+ * @vc: virtual console
+ * @cols: columns
+ * @rows: rows
+ *
+ * Resize a virtual console as seen from the console end of things. We
+ * use the common vc_do_resize methods to update the structures. The
+ * caller must hold the console sem to protect console internals and
+ * vc->vc_tty
+ */
+
+int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int rows)
+{
+ return vc_do_resize(vc->vc_tty, vc, cols, rows);
+}
+
+/**
+ * vt_resize - resize a VT
+ * @tty: tty to resize
+ * @ws: winsize attributes
+ *
+ * Resize a virtual terminal. This is called by the tty layer as we
+ * register our own handler for resizing. The mutual helper does all
+ * the actual work.
+ *
+ * Takes the console sem and the called methods then take the tty
+ * termios_mutex and the tty ctrl_lock in that order.
+ */
+static int vt_resize(struct tty_struct *tty, struct winsize *ws)
{
- int rc;
+ struct vc_data *vc = tty->driver_data;
+ int ret;
acquire_console_sem();
- rc = vc_resize(vc, cols, lines);
+ ret = vc_do_resize(tty, vc, ws->ws_col, ws->ws_row);
release_console_sem();
- return rc;
+ return ret;
}
void vc_deallocate(unsigned int currcons)
if (vc_cons_allocated(currcons)) {
struct vc_data *vc = vc_cons[currcons].d;
+ struct vt_notifier_param param = { .vc = vc };
+
+ atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, ¶m);
+ vcs_remove_sysfs(currcons);
vc->vc_sw->con_deinit(vc);
put_pid(vc->vt_pid);
module_put(vc->vc_sw->owner);
- if (vc->vc_kmalloced)
- kfree(vc->vc_screenbuf);
+ kfree(vc->vc_screenbuf);
if (currcons >= MIN_NR_CONSOLES)
kfree(vc);
vc_cons[currcons].d = NULL;
vc->vc_pos += vc->vc_size_row;
}
vc->vc_need_wrap = 0;
+ notify_write(vc, '\n');
}
static void ri(struct vc_data *vc)
{
vc->vc_pos -= vc->vc_x << 1;
vc->vc_need_wrap = vc->vc_x = 0;
+ notify_write(vc, '\r');
}
static inline void bs(struct vc_data *vc)
vc->vc_pos -= 2;
vc->vc_x--;
vc->vc_need_wrap = 0;
+ notify_write(vc, '\b');
}
}
update_attr(vc);
break;
case 9: /* set blanking interval */
- blankinterval = ((vc->vc_par[1] < 60) ? vc->vc_par[1] : 60) * 60 * HZ;
+ blankinterval = ((vc->vc_par[1] < 60) ? vc->vc_par[1] : 60) * 60;
poke_blanked_console();
break;
case 10: /* set bell frequency in Hz */
vc->vc_charset = 0;
vc->vc_need_wrap = 0;
vc->vc_report_mouse = 0;
- vc->vc_utf = 0;
+ vc->vc_utf = default_utf8;
vc->vc_utf_count = 0;
vc->vc_disp_ctrl = 0;
vc->vc_tab_stop[1] =
vc->vc_tab_stop[2] =
vc->vc_tab_stop[3] =
- vc->vc_tab_stop[4] = 0x01010101;
+ vc->vc_tab_stop[4] =
+ vc->vc_tab_stop[5] =
+ vc->vc_tab_stop[6] =
+ vc->vc_tab_stop[7] = 0x01010101;
vc->vc_bell_pitch = DEFAULT_BELL_PITCH;
vc->vc_bell_duration = DEFAULT_BELL_DURATION;
break;
}
vc->vc_pos += (vc->vc_x << 1);
+ notify_write(vc, '\t');
return;
case 10: case 11: case 12:
lf(vc);
vc->vc_tab_stop[1] =
vc->vc_tab_stop[2] =
vc->vc_tab_stop[3] =
- vc->vc_tab_stop[4] = 0;
+ vc->vc_tab_stop[4] =
+ vc->vc_tab_stop[5] =
+ vc->vc_tab_stop[6] =
+ vc->vc_tab_stop[7] = 0;
}
return;
case 'm':
* kernel memory allocation is available.
*/
char con_buf[CON_BUF_SIZE];
-DECLARE_MUTEX(con_buf_sem);
+DEFINE_MUTEX(con_buf_mtx);
/* is_double_width() is based on the wcwidth() implementation by
- * Markus Kuhn -- 2003-05-20 (Unicode 4.0)
+ * Markus Kuhn -- 2007-05-26 (Unicode 5.0)
* Latest version: http://www.cl.cam.ac.uk/~mgk25/ucs/wcwidth.c
*/
struct interval {
static const struct interval double_width[] = {
{ 0x1100, 0x115F }, { 0x2329, 0x232A }, { 0x2E80, 0x303E },
{ 0x3040, 0xA4CF }, { 0xAC00, 0xD7A3 }, { 0xF900, 0xFAFF },
- { 0xFE30, 0xFE6F }, { 0xFF00, 0xFF60 }, { 0xFFE0, 0xFFE6 },
- { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD }
+ { 0xFE10, 0xFE19 }, { 0xFE30, 0xFE6F }, { 0xFF00, 0xFF60 },
+ { 0xFFE0, 0xFFE6 }, { 0x20000, 0x2FFFD }, { 0x30000, 0x3FFFD }
};
- return bisearch(ucs, double_width,
- sizeof(double_width) / sizeof(*double_width) - 1);
+ return bisearch(ucs, double_width, ARRAY_SIZE(double_width) - 1);
}
/* acquires console_sem */
unsigned long draw_from = 0, draw_to = 0;
struct vc_data *vc;
unsigned char vc_attr;
+ struct vt_notifier_param param;
uint8_t rescan;
uint8_t inverse;
uint8_t width;
currcons = vc->vc_num;
if (!vc_cons_allocated(currcons)) {
/* could this happen? */
- static int error = 0;
- if (!error) {
- error = 1;
- printk("con_write: tty %d not allocated\n", currcons+1);
- }
+ printk_once("con_write: tty %d not allocated\n", currcons+1);
release_console_sem();
return 0;
}
- release_console_sem();
-
orig_buf = buf;
orig_count = count;
- /* At this point 'buf' is guaranteed to be a kernel buffer
- * and therefore no access to userspace (and therefore sleeping)
- * will be needed. The con_buf_sem serializes all tty based
- * console rendering and vcs write/read operations. We hold
- * the console spinlock during the entire write.
- */
-
- acquire_console_sem();
-
- vc = tty->driver_data;
- if (vc == NULL) {
- printk(KERN_ERR "vt: argh, driver_data _became_ NULL !\n");
- release_console_sem();
- goto out;
- }
-
himask = vc->vc_hi_font_mask;
charmask = himask ? 0x1ff : 0xff;
if (IS_FG(vc))
hide_cursor(vc);
+ param.vc = vc;
+
while (!tty->stopped && count) {
int orig = *buf;
c = orig;
c = 0xfffd;
tc = c;
} else { /* no utf or alternate charset mode */
- tc = vc->vc_translate[vc->vc_toggle_meta ? (c | 0x80) : c];
+ tc = vc_translate(vc, c);
}
+ param.c = tc;
+ if (atomic_notifier_call_chain(&vt_notifier_list, VT_PREWRITE,
+ ¶m) == NOTIFY_STOP)
+ continue;
+
/* If the original code was a control character we
* only allow a glyph to be displayed if the code is
* not normally used (such as for cursor movement) or
continue; /* nothing to display */
}
/* Glyph not found */
- if (!(vc->vc_utf && !vc->vc_disp_ctrl) && !(c & ~charmask)) {
+ if ((!(vc->vc_utf && !vc->vc_disp_ctrl) || c < 128) && !(c & ~charmask)) {
/* In legacy mode use the glyph we get by a 1:1 mapping.
- This would make absolutely no sense with Unicode in mind. */
+ This would make absolutely no sense with Unicode in mind,
+ but do this for ASCII characters since a font may lack
+ Unicode mapping info and we don't want to end up with
+ having question marks only. */
tc = c;
} else {
/* Display U+FFFD. If it's not found, display an inverse question mark. */
} else {
vc_attr = ((vc->vc_attr) & 0x88) | (((vc->vc_attr) & 0x70) >> 4) | (((vc->vc_attr) & 0x07) << 4);
}
+ FLUSH
}
while (1) {
tc = conv_uni_to_pc(vc, ' '); /* A space is printed in the second column */
if (tc < 0) tc = ' ';
}
+ notify_write(vc, c);
+
+ if (inverse) {
+ FLUSH
+ }
if (rescan) {
rescan = 0;
FLUSH
console_conditional_schedule();
release_console_sem();
-
-out:
+ notify_update(vc);
return n;
#undef FLUSH
}
do_blank_screen(0);
blank_timer_expired = 0;
}
+ notify_update(vc_cons[fg_console].d);
release_console_sem();
}
{
struct vc_data *vc = vc_cons[fg_console].d;
unsigned char c;
- static unsigned long printing;
+ static DEFINE_SPINLOCK(printing_lock);
const ushort *start;
ushort cnt = 0;
ushort myx;
/* console busy or not yet initialized */
- if (!printable || test_and_set_bit(0, &printing))
+ if (!printable)
+ return;
+ if (!spin_trylock(&printing_lock))
return;
if (kmsg_redirect && vc_cons_allocated(kmsg_redirect - 1))
continue;
}
scr_writew((vc->vc_attr << 8) + c, (unsigned short *)vc->vc_pos);
+ notify_write(vc, c);
cnt++;
if (myx == vc->vc_cols - 1) {
vc->vc_need_wrap = 1;
}
}
set_cursor(vc);
+ notify_update(vc);
quit:
- clear_bit(0, &printing);
+ spin_unlock(&printing_lock);
}
static struct tty_driver *vt_console_device(struct console *c, int *index)
int lines;
int ret;
- if (tty->driver->type != TTY_DRIVER_TYPE_CONSOLE)
- return -EINVAL;
if (current->signal->tty != tty && !capable(CAP_SYS_ADMIN))
return -EPERM;
if (get_user(type, p))
return -EFAULT;
ret = 0;
+
+ lock_kernel();
+
switch (type)
{
case TIOCL_SETSEL:
ret = sel_loadlut(p);
break;
case TIOCL_GETSHIFTSTATE:
-
+
/*
* Make it possible to react to Shift+Mousebutton.
* Note that 'shift_state' is an undocumented
ret = -EINVAL;
break;
}
+ unlock_kernel();
return ret;
}
return retval;
}
-static void con_put_char(struct tty_struct *tty, unsigned char ch)
+static int con_put_char(struct tty_struct *tty, unsigned char ch)
{
if (in_interrupt())
- return; /* n_r3964 calls put_char() from interrupt context */
- do_con_write(tty, &ch, 1);
+ return 0; /* n_r3964 calls put_char() from interrupt context */
+ return do_con_write(tty, &ch, 1);
}
static int con_write_room(struct tty_struct *tty)
{
if (tty->stopped)
return 0;
- return 4096; /* No limit, really; we're not buffering */
+ return 32768; /* No limit, really; we're not buffering */
}
static int con_chars_in_buffer(struct tty_struct *tty)
ret = vc_allocate(currcons);
if (ret == 0) {
struct vc_data *vc = vc_cons[currcons].d;
+
+ /* Still being freed */
+ if (vc->vc_tty) {
+ release_console_sem();
+ return -ERESTARTSYS;
+ }
tty->driver_data = vc;
vc->vc_tty = tty;
tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
}
+ if (vc->vc_utf)
+ tty->termios->c_iflag |= IUTF8;
+ else
+ tty->termios->c_iflag &= ~IUTF8;
release_console_sem();
- vcs_make_sysfs(tty);
return ret;
}
}
return ret;
}
-/*
- * We take tty_mutex in here to prevent another thread from coming in via init_dev
- * and taking a ref against the tty while we're in the process of forgetting
- * about it and cleaning things up.
- *
- * This is because vcs_remove_sysfs() can sleep and will drop the BKL.
- */
static void con_close(struct tty_struct *tty, struct file *filp)
{
- mutex_lock(&tty_mutex);
- acquire_console_sem();
- if (tty && tty->count == 1) {
- struct vc_data *vc = tty->driver_data;
+ /* Nothing to do - we defer to shutdown */
+}
- if (vc)
- vc->vc_tty = NULL;
- tty->driver_data = NULL;
- release_console_sem();
- vcs_remove_sysfs(tty);
- mutex_unlock(&tty_mutex);
- /*
- * tty_mutex is released, but we still hold BKL, so there is
- * still exclusion against init_dev()
- */
- return;
- }
+static void con_shutdown(struct tty_struct *tty)
+{
+ struct vc_data *vc = tty->driver_data;
+ BUG_ON(vc == NULL);
+ acquire_console_sem();
+ vc->vc_tty = NULL;
release_console_sem();
- mutex_unlock(&tty_mutex);
+ tty_shutdown(tty);
}
static int default_italic_color = 2; // green (ASCII)
if (blankinterval) {
blank_state = blank_normal_wait;
- mod_timer(&console_timer, jiffies + blankinterval);
+ mod_timer(&console_timer, jiffies + (blankinterval * HZ));
}
- /*
- * kmalloc is not running yet - we use the bootmem allocator.
- */
for (currcons = 0; currcons < MIN_NR_CONSOLES; currcons++) {
- vc_cons[currcons].d = vc = alloc_bootmem(sizeof(struct vc_data));
+ vc_cons[currcons].d = vc = kzalloc(sizeof(struct vc_data), GFP_NOWAIT);
INIT_WORK(&vc_cons[currcons].SAK_work, vc_SAK);
visual_init(vc, currcons, 1);
- vc->vc_screenbuf = (unsigned short *)alloc_bootmem(vc->vc_screenbuf_size);
- vc->vc_kmalloced = 0;
+ vc->vc_screenbuf = kzalloc(vc->vc_screenbuf_size, GFP_NOWAIT);
vc_init(vc, vc->vc_rows, vc->vc_cols,
currcons || !vc->vc_sw->con_save_screen);
}
.flush_chars = con_flush_chars,
.chars_in_buffer = con_chars_in_buffer,
.ioctl = vt_ioctl,
+#ifdef CONFIG_COMPAT
+ .compat_ioctl = vt_compat_ioctl,
+#endif
.stop = con_stop,
.start = con_start,
.throttle = con_throttle,
.unthrottle = con_unthrottle,
+ .resize = vt_resize,
+ .shutdown = con_shutdown
};
-int __init vty_init(void)
+static struct cdev vc0_cdev;
+
+int __init vty_init(const struct file_operations *console_fops)
{
+ cdev_init(&vc0_cdev, console_fops);
+ if (cdev_add(&vc0_cdev, MKDEV(TTY_MAJOR, 0), 1) ||
+ register_chrdev_region(MKDEV(TTY_MAJOR, 0), 1, "/dev/vc/0") < 0)
+ panic("Couldn't register /dev/tty0 driver\n");
+ device_create(tty_class, NULL, MKDEV(TTY_MAJOR, 0), NULL, "tty0");
+
vcs_init();
console_driver = alloc_tty_driver(MAX_NR_CONSOLES);
console_driver->minor_start = 1;
console_driver->type = TTY_DRIVER_TYPE_CONSOLE;
console_driver->init_termios = tty_std_termios;
+ if (default_utf8)
+ console_driver->init_termios.c_iflag |= IUTF8;
console_driver->flags = TTY_DRIVER_REAL_RAW | TTY_DRIVER_RESET_TERMIOS;
tty_set_operations(console_driver, &con_ops);
if (tty_register_driver(console_driver))
panic("Couldn't register console driver\n");
-
kbd_init();
console_map_init();
-#ifdef CONFIG_PROM_CONSOLE
- prom_con_init();
-#endif
#ifdef CONFIG_MDA_CONSOLE
mda_console_init();
#endif
}
#ifndef VT_SINGLE_DRIVER
-#include <linux/device.h>
static struct class *vtconsole_class;
return retval;
}
-static int unbind_con_driver(const struct consw *csw, int first, int last,
- int deflt)
+/**
+ * unbind_con_driver - unbind a console driver
+ * @csw: pointer to console driver to unregister
+ * @first: first in range of consoles that @csw should be unbound from
+ * @last: last in range of consoles that @csw should be unbound from
+ * @deflt: should next bound console driver be default after @csw is unbound?
+ *
+ * To unbind a driver from all possible consoles, pass 0 as @first and
+ * %MAX_NR_CONSOLES as @last.
+ *
+ * @deflt controls whether the console that ends up replacing @csw should be
+ * the default console.
+ *
+ * RETURNS:
+ * -ENODEV if @csw isn't a registered console driver or can't be unregistered
+ * or 0 on success.
+ */
+int unbind_con_driver(const struct consw *csw, int first, int last, int deflt)
{
struct module *owner = csw->owner;
const struct consw *defcsw = NULL;
return retval;
}
+EXPORT_SYMBOL(unbind_con_driver);
static int vt_bind(struct con_driver *con)
{
goto err;
con_driver->dev = device_create(vtconsole_class, NULL,
- MKDEV(0, con_driver->node),
- "vtcon%i", con_driver->node);
+ MKDEV(0, con_driver->node),
+ NULL, "vtcon%i",
+ con_driver->node);
if (IS_ERR(con_driver->dev)) {
printk(KERN_WARNING "Unable to create device for %s; "
if (con->con && !con->dev) {
con->dev = device_create(vtconsole_class, NULL,
- MKDEV(0, con->node),
- "vtcon%i", con->node);
+ MKDEV(0, con->node),
+ NULL, "vtcon%i",
+ con->node);
if (IS_ERR(con->dev)) {
printk(KERN_WARNING "Unable to create "
}
return;
}
- if (blank_state != blank_normal_wait)
- return;
- blank_state = blank_off;
/* entering graphics mode? */
if (entering_gfx) {
save_screen(vc);
vc->vc_sw->con_blank(vc, -1, 1);
console_blanked = fg_console + 1;
+ blank_state = blank_off;
set_origin(vc);
return;
}
+ if (blank_state != blank_normal_wait)
+ return;
+ blank_state = blank_off;
+
/* don't blank graphics */
if (vc->vc_mode != KD_TEXT) {
console_blanked = fg_console + 1;
blank_state = blank_vesa_wait;
mod_timer(&console_timer, jiffies + vesa_off_interval);
}
+ vt_event_post(VT_EVENT_BLANK, vc->vc_num, vc->vc_num);
}
EXPORT_SYMBOL(do_blank_screen);
return; /* but leave console_blanked != 0 */
if (blankinterval) {
- mod_timer(&console_timer, jiffies + blankinterval);
+ mod_timer(&console_timer, jiffies + (blankinterval * HZ));
blank_state = blank_normal_wait;
}
console_blank_hook(0);
set_palette(vc);
set_cursor(vc);
+ vt_event_post(VT_EVENT_UNBLANK, vc->vc_num, vc->vc_num);
}
EXPORT_SYMBOL(do_unblank_screen);
static void blank_screen_t(unsigned long dummy)
{
if (unlikely(!keventd_up())) {
- mod_timer(&console_timer, jiffies + blankinterval);
+ mod_timer(&console_timer, jiffies + (blankinterval * HZ));
return;
}
blank_timer_expired = 1;
if (console_blanked)
unblank_screen();
else if (blankinterval) {
- mod_timer(&console_timer, jiffies + blankinterval);
+ mod_timer(&console_timer, jiffies + (blankinterval * HZ));
blank_state = blank_normal_wait;
}
}
goto out;
c = (font.width+7)/8 * 32 * font.charcount;
-
+
if (op->data && font.charcount > op->charcount)
rc = -ENOSPC;
if (!(op->flags & KD_FONT_FLAG_OLD)) {
c |= 0x100;
return c;
}
+EXPORT_SYMBOL_GPL(screen_glyph);
/* used by vcs - note the word offset */
unsigned short *screen_pos(struct vc_data *vc, int w_offset, int viewed)
EXPORT_SYMBOL(update_region);
EXPORT_SYMBOL(redraw_screen);
EXPORT_SYMBOL(vc_resize);
-EXPORT_SYMBOL(vc_lock_resize);
EXPORT_SYMBOL(fg_console);
EXPORT_SYMBOL(console_blank_hook);
EXPORT_SYMBOL(console_blanked);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff