* - Arno Griffioen <arno@usn.nl>
* - David Carter <carter@cs.bris.ac.uk>
*
- * Note that the abstract console driver allows all consoles to be of
- * potentially different sizes, so the following variables depend on the
- * current console (currcons):
- *
- * - video_num_columns
- * - video_num_lines
- * - video_size_row
- * - can_do_color
- *
* The abstract console driver provides a generic interface for a text
* console. It supports VGA text mode, frame buffer based graphical consoles
* and special graphics processors that are only accessible through some
#include <linux/bootmem.h>
#include <linux/pm.h>
#include <linux/font.h>
+#include <linux/bitops.h>
#include <asm/io.h>
#include <asm/system.h>
#include <asm/uaccess.h>
-#include <asm/bitops.h>
#include "console_macros.h"
static int con_open(struct tty_struct *, struct file *);
static void vc_init(unsigned int console, unsigned int rows,
unsigned int cols, int do_clear);
-static void gotoxy(int currcons, int new_x, int new_y);
+static void gotoxy(struct vc_data *vc, int new_x, int new_y);
static void save_cur(int currcons);
static void reset_terminal(int currcons, int do_clear);
static void con_flush_chars(struct tty_struct *tty);
static void set_vesa_blanking(char __user *p);
-static void set_cursor(int currcons);
-static void hide_cursor(int currcons);
+static void set_cursor(struct vc_data *vc);
+static void hide_cursor(struct vc_data *vc);
static void console_callback(void *ignored);
static void blank_screen_t(unsigned long dummy);
* Low-Level Functions
*/
-#define IS_FG (currcons == fg_console)
+#define IS_FG (currcons == fg_console)
+#define IS_FG_VC(vc) (vc == vc_cons[fg_console].d)
+
#define IS_VISIBLE CON_IS_VISIBLE(vc_cons[currcons].d)
#ifdef VT_BUF_VRAM_ONLY
-#define DO_UPDATE 0
+#define DO_UPDATE 0
+#define DO_UPDATE_VC(vc) 0
#else
-#define DO_UPDATE IS_VISIBLE
+#define DO_UPDATE IS_VISIBLE
+#define DO_UPDATE_VC(vc) CON_IS_VISIBLE(vc)
#endif
static int pm_con_request(struct pm_dev *dev, pm_request_t rqst, void *data);
static struct pm_dev *pm_con;
-static inline unsigned short *screenpos(int currcons, int offset, int viewed)
+static inline unsigned short *screenpos(struct vc_data *vc, int offset, int viewed)
{
unsigned short *p;
if (!viewed)
- p = (unsigned short *)(origin + offset);
- else if (!sw->con_screen_pos)
- p = (unsigned short *)(visible_origin + offset);
+ p = (unsigned short *)(vc->vc_origin + offset);
+ else if (!vc->vc_sw->con_screen_pos)
+ p = (unsigned short *)(vc->vc_visible_origin + offset);
else
- p = sw->con_screen_pos(vc_cons[currcons].d, offset);
+ p = vc->vc_sw->con_screen_pos(vc, offset);
return p;
}
if (t+nr >= b)
nr = b - t - 1;
- if (b > video_num_lines || t >= b || nr < 1)
+ if (b > vc_cons[currcons].d->vc_rows || t >= b || nr < 1)
return;
if (IS_VISIBLE && sw->con_scroll(vc_cons[currcons].d, t, b, SM_UP, nr))
return;
- d = (unsigned short *) (origin+video_size_row*t);
- s = (unsigned short *) (origin+video_size_row*(t+nr));
- scr_memmovew(d, s, (b-t-nr) * video_size_row);
- scr_memsetw(d + (b-t-nr) * video_num_columns, video_erase_char, video_size_row*nr);
+ d = (unsigned short *) (origin+vc_cons[currcons].d->vc_size_row*t);
+ s = (unsigned short *) (origin+vc_cons[currcons].d->vc_size_row*(t+nr));
+ scr_memmovew(d, s, (b-t-nr) * vc_cons[currcons].d->vc_size_row);
+ scr_memsetw(d + (b-t-nr) * vc_cons[currcons].d->vc_cols, video_erase_char,
+ vc_cons[currcons].d->vc_size_row * nr);
}
static void
if (t+nr >= b)
nr = b - t - 1;
- if (b > video_num_lines || t >= b || nr < 1)
+ if (b > vc_cons[currcons].d->vc_rows || t >= b || nr < 1)
return;
if (IS_VISIBLE && sw->con_scroll(vc_cons[currcons].d, t, b, SM_DOWN, nr))
return;
- s = (unsigned short *) (origin+video_size_row*t);
- step = video_num_columns * nr;
- scr_memmovew(s + step, s, (b-t-nr)*video_size_row);
+ s = (unsigned short *) (origin+vc_cons[currcons].d->vc_size_row*t);
+ step = vc_cons[currcons].d->vc_cols * nr;
+ scr_memmovew(s + step, s, (b-t-nr)*vc_cons[currcons].d->vc_size_row);
scr_memsetw(s, video_erase_char, 2*step);
}
-static void do_update_region(int currcons, unsigned long start, int count)
+static void do_update_region(struct vc_data *vc, unsigned long start, int count)
{
#ifndef VT_BUF_VRAM_ONLY
unsigned int xx, yy, offset;
u16 *p;
p = (u16 *) start;
- if (!sw->con_getxy) {
- offset = (start - origin) / 2;
- xx = offset % video_num_columns;
- yy = offset / video_num_columns;
+ if (!vc->vc_sw->con_getxy) {
+ offset = (start - vc->vc_origin) / 2;
+ xx = offset % vc->vc_cols;
+ yy = offset / vc->vc_cols;
} else {
int nxx, nyy;
- start = sw->con_getxy(vc_cons[currcons].d, start, &nxx, &nyy);
+ start = vc->vc_sw->con_getxy(vc, start, &nxx, &nyy);
xx = nxx; yy = nyy;
}
for(;;) {
u16 attrib = scr_readw(p) & 0xff00;
int startx = xx;
u16 *q = p;
- while (xx < video_num_columns && count) {
+ while (xx < vc->vc_cols && count) {
if (attrib != (scr_readw(p) & 0xff00)) {
if (p > q)
- sw->con_putcs(vc_cons[currcons].d, q, p-q, yy, startx);
+ vc->vc_sw->con_putcs(vc, q, p-q, yy, startx);
startx = xx;
q = p;
attrib = scr_readw(p) & 0xff00;
count--;
}
if (p > q)
- sw->con_putcs(vc_cons[currcons].d, q, p-q, yy, startx);
+ vc->vc_sw->con_putcs(vc, q, p-q, yy, startx);
if (!count)
break;
xx = 0;
yy++;
- if (sw->con_getxy) {
+ if (vc->vc_sw->con_getxy) {
p = (u16 *)start;
- start = sw->con_getxy(vc_cons[currcons].d, start, NULL, NULL);
+ start = vc->vc_sw->con_getxy(vc, start, NULL, NULL);
}
}
#endif
WARN_CONSOLE_UNLOCKED();
if (DO_UPDATE) {
- hide_cursor(currcons);
- do_update_region(currcons, start, count);
- set_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
+ do_update_region(vc_cons[currcons].d, start, count);
+ set_cursor(vc_cons[currcons].d);
}
}
*/
{
u8 a = color;
- if (!can_do_color)
+ if (!vc_cons[currcons].d->vc_can_do_color)
return _intensity |
(_underline ? 4 : 0) |
(_reverse ? 8 : 0) |
}
/* Note: inverting the screen twice should revert to the original state */
-
-void invert_screen(int currcons, int offset, int count, int viewed)
+void invert_screen(struct vc_data *vc, int offset, int count, int viewed)
{
unsigned short *p;
WARN_CONSOLE_UNLOCKED();
count /= 2;
- p = screenpos(currcons, offset, viewed);
- if (sw->con_invert_region)
- sw->con_invert_region(vc_cons[currcons].d, p, count);
+ p = screenpos(vc, offset, viewed);
+ if (vc->vc_sw->con_invert_region)
+ vc->vc_sw->con_invert_region(vc, p, count);
#ifndef VT_BUF_VRAM_ONLY
else {
u16 *q = p;
int cnt = count;
u16 a;
- if (!can_do_color) {
+ if (!vc->vc_can_do_color) {
while (cnt--) {
a = scr_readw(q);
a ^= 0x0800;
scr_writew(a, q);
q++;
}
- } else if (hi_font_mask == 0x100) {
+ } else if (vc->vc_hi_font_mask == 0x100) {
while (cnt--) {
a = scr_readw(q);
a = ((a) & 0x11ff) | (((a) & 0xe000) >> 4) | (((a) & 0x0e00) << 4);
}
}
#endif
- if (DO_UPDATE)
- do_update_region(currcons, (unsigned long) p, count);
+ if (DO_UPDATE_VC(vc))
+ do_update_region(vc, (unsigned long) p, count);
}
/* used by selection: complement pointer position */
-void complement_pos(int currcons, int offset)
+void complement_pos(struct vc_data *vc, int offset)
{
static unsigned short *p;
static unsigned short old;
if (p) {
scr_writew(old, p);
- if (DO_UPDATE)
- sw->con_putc(vc_cons[currcons].d, old, oldy, oldx);
+ if (DO_UPDATE_VC(vc))
+ vc->vc_sw->con_putc(vc, old, oldy, oldx);
}
if (offset == -1)
p = NULL;
else {
unsigned short new;
- p = screenpos(currcons, offset, 1);
+ p = screenpos(vc, offset, 1);
old = scr_readw(p);
- new = old ^ complement_mask;
+ new = old ^ vc->vc_complement_mask;
scr_writew(new, p);
- if (DO_UPDATE) {
- oldx = (offset >> 1) % video_num_columns;
- oldy = (offset >> 1) / video_num_columns;
- sw->con_putc(vc_cons[currcons].d, new, oldy, oldx);
+ if (DO_UPDATE_VC(vc)) {
+ oldx = (offset >> 1) % vc->vc_cols;
+ oldy = (offset >> 1) / vc->vc_cols;
+ vc->vc_sw->con_putc(vc, new, oldy, oldx);
}
}
}
{
unsigned short *p, *q = (unsigned short *) pos;
- p = q + video_num_columns - nr - x;
+ p = q + vc_cons[currcons].d->vc_cols - nr - x;
while (--p >= q)
scr_writew(scr_readw(p), p + nr);
scr_memsetw(q, video_erase_char, nr*2);
if (DO_UPDATE) {
unsigned short oldattr = attr;
sw->con_bmove(vc_cons[currcons].d,y,x,y,x+nr,1,
- video_num_columns-x-nr);
+ vc_cons[currcons].d->vc_cols-x-nr);
attr = video_erase_char >> 8;
while (nr--)
sw->con_putc(vc_cons[currcons].d,
unsigned int i = x;
unsigned short *p = (unsigned short *) pos;
- while (++i <= video_num_columns - nr) {
+ while (++i <= vc_cons[currcons].d->vc_cols - nr) {
scr_writew(scr_readw(p+nr), p);
p++;
}
if (DO_UPDATE) {
unsigned short oldattr = attr;
sw->con_bmove(vc_cons[currcons].d, y, x+nr, y, x, 1,
- video_num_columns-x-nr);
+ vc_cons[currcons].d->vc_cols-x-nr);
attr = video_erase_char >> 8;
while (nr--)
sw->con_putc(vc_cons[currcons].d,
video_erase_char, y,
- video_num_columns-1-nr);
+ vc_cons[currcons].d->vc_cols-1-nr);
attr = oldattr;
}
}
static int softcursor_original;
-static void add_softcursor(int currcons)
+static void add_softcursor(struct vc_data *vc)
{
- int i = scr_readw((u16 *) pos);
- u32 type = cursor_type;
+ int i = scr_readw((u16 *) vc->vc_pos);
+ u32 type = vc->vc_cursor_type;
if (! (type & 0x10)) return;
if (softcursor_original != -1) return;
i ^= ((type) & 0xff00 );
if ((type & 0x20) && ((softcursor_original & 0x7000) == (i & 0x7000))) i ^= 0x7000;
if ((type & 0x40) && ((i & 0x700) == ((i & 0x7000) >> 4))) i ^= 0x0700;
- scr_writew(i, (u16 *) pos);
- if (DO_UPDATE)
- sw->con_putc(vc_cons[currcons].d, i, y, x);
+ scr_writew(i, (u16 *) vc->vc_pos);
+ if (DO_UPDATE_VC(vc))
+ vc->vc_sw->con_putc(vc, i, vc->vc_y, vc->vc_x);
}
-static void hide_softcursor(int currcons)
+static void hide_softcursor(struct vc_data *vc)
{
if (softcursor_original != -1) {
- scr_writew(softcursor_original,(u16 *) pos);
- if (DO_UPDATE)
- sw->con_putc(vc_cons[currcons].d, softcursor_original, y, x);
+ scr_writew(softcursor_original, (u16 *)vc->vc_pos);
+ if (DO_UPDATE_VC(vc))
+ vc->vc_sw->con_putc(vc, softcursor_original,
+ vc->vc_y, vc->vc_x);
softcursor_original = -1;
}
}
-static void hide_cursor(int currcons)
+static void hide_cursor(struct vc_data *vc)
{
- if (currcons == sel_cons)
+ if (vc == sel_cons)
clear_selection();
- sw->con_cursor(vc_cons[currcons].d,CM_ERASE);
- hide_softcursor(currcons);
+ vc->vc_sw->con_cursor(vc, CM_ERASE);
+ hide_softcursor(vc);
}
-static void set_cursor(int currcons)
+static void set_cursor(struct vc_data *vc)
{
- if (!IS_FG || console_blanked || vcmode == KD_GRAPHICS)
- return;
- if (deccm) {
- if (currcons == sel_cons)
- clear_selection();
- add_softcursor(currcons);
- if ((cursor_type & 0x0f) != 1)
- sw->con_cursor(vc_cons[currcons].d,CM_DRAW);
- } else
- hide_cursor(currcons);
+ if (!IS_FG_VC(vc) || console_blanked ||
+ vc->vc_vt->vc_mode == KD_GRAPHICS)
+ return;
+ if (vc->vc_deccm) {
+ if (vc == sel_cons)
+ clear_selection();
+ add_softcursor(vc);
+ if ((vc->vc_cursor_type & 0x0f) != 1)
+ vc->vc_sw->con_cursor(vc, CM_DRAW);
+ } else
+ hide_cursor(vc);
}
static void set_origin(int currcons)
origin = (unsigned long) screenbuf;
visible_origin = origin;
scr_end = origin + screenbuf_size;
- pos = origin + video_size_row*y + 2*x;
+ pos = origin + vc_cons[currcons].d->vc_size_row*y + 2*x;
}
static inline void save_screen(int currcons)
if (is_switch) {
currcons = fg_console;
- hide_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
if (fg_console != new_console) {
struct vc_data **display = vc_cons[new_console].d->vc_display_fg;
old_console = (*display) ? (*display)->vc_num : fg_console;
}
} else {
currcons = new_console;
- hide_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
}
if (redraw) {
clear_buffer_attributes(currcons);
}
if (update && vcmode != KD_GRAPHICS)
- do_update_region(currcons, origin, screenbuf_size/2);
+ do_update_region(vc_cons[currcons].d, origin, screenbuf_size/2);
}
- set_cursor(currcons);
+ set_cursor(vc_cons[currcons].d);
if (is_switch) {
set_leds();
compute_shiftstate();
vc_cons[currcons].d->vc_uni_pagedir = 0;
hi_font_mask = 0;
complement_mask = 0;
- can_do_color = 0;
+ vc_cons[currcons].d->vc_can_do_color = 0;
sw->con_init(vc_cons[currcons].d, init);
if (!complement_mask)
- complement_mask = can_do_color ? 0x7700 : 0x0800;
+ complement_mask =
+ vc_cons[currcons].d->vc_can_do_color ? 0x7700 : 0x0800;
s_complement_mask = complement_mask;
- video_size_row = video_num_columns<<1;
- screenbuf_size = video_num_lines*video_size_row;
+ vc_cons[currcons].d->vc_size_row = vc_cons[currcons].d->vc_cols<<1;
+ screenbuf_size = vc_cons[currcons].d->vc_rows * vc_cons[currcons].d->vc_size_row;
}
int vc_allocate(unsigned int currcons) /* return 0 on success */
memset((void *)p, 0, structsize);
vc_cons[currcons].d = (struct vc_data *)p;
vt_cons[currcons] = (struct vt_struct *)(p+sizeof(struct vc_data));
+ vc_cons[currcons].d->vc_vt = vt_cons[currcons];
visual_init(currcons, 1);
if (!*vc_cons[currcons].d->vc_uni_pagedir_loc)
con_set_default_unimap(currcons);
}
screenbuf = (unsigned short *) q;
kmalloced = 1;
- vc_init(currcons, video_num_lines, video_num_columns, 1);
+ vc_init(currcons, vc_cons[currcons].d->vc_rows, vc_cons[currcons].d->vc_cols, 1);
if (!pm_con) {
pm_con = pm_register(PM_SYS_DEV,
* [this is to be used together with some user program
* like resize that changes the hardware videomode]
*/
+#define VC_RESIZE_MAXCOL (32767)
+#define VC_RESIZE_MAXROW (32767)
int vc_resize(int currcons, unsigned int cols, unsigned int lines)
{
unsigned long old_origin, new_origin, new_scr_end, rlth, rrem, err = 0;
if (!vc_cons_allocated(currcons))
return -ENXIO;
- new_cols = (cols ? cols : video_num_columns);
- new_rows = (lines ? lines : video_num_lines);
+ if (cols > VC_RESIZE_MAXCOL || lines > VC_RESIZE_MAXROW)
+ return -EINVAL;
+
+ new_cols = (cols ? cols : vc_cons[currcons].d->vc_cols);
+ new_rows = (lines ? lines : vc_cons[currcons].d->vc_rows);
new_row_size = new_cols << 1;
new_screen_size = new_row_size * new_rows;
- if (new_cols == video_num_columns && new_rows == video_num_lines)
+ if (new_cols == vc_cons[currcons].d->vc_cols && new_rows == vc_cons[currcons].d->vc_rows)
return 0;
newscreen = (unsigned short *) kmalloc(new_screen_size, GFP_USER);
if (!newscreen)
return -ENOMEM;
- old_rows = video_num_lines;
- old_cols = video_num_columns;
- old_row_size = video_size_row;
+ old_rows = vc_cons[currcons].d->vc_rows;
+ old_cols = vc_cons[currcons].d->vc_cols;
+ old_row_size = vc_cons[currcons].d->vc_size_row;
old_screen_size = screenbuf_size;
err = resize_screen(currcons, new_cols, new_rows);
return err;
}
- video_num_lines = new_rows;
- video_num_columns = new_cols;
- video_size_row = new_row_size;
+ vc_cons[currcons].d->vc_rows = new_rows;
+ vc_cons[currcons].d->vc_cols = new_cols;
+ vc_cons[currcons].d->vc_size_row = new_row_size;
screenbuf_size = new_screen_size;
rlth = min(old_row_size, new_row_size);
/* do part of a reset_terminal() */
top = 0;
- bottom = video_num_lines;
- gotoxy(currcons, x, y);
+ bottom = vc_cons[currcons].d->vc_rows;
+ gotoxy(vc_cons[currcons].d, x, y);
save_cur(currcons);
if (vc_cons[currcons].d->vc_tty) {
struct winsize ws, *cws = &vc_cons[currcons].d->vc_tty->winsize;
memset(&ws, 0, sizeof(ws));
- ws.ws_row = video_num_lines;
- ws.ws_col = video_num_columns;
+ ws.ws_row = vc_cons[currcons].d->vc_rows;
+ ws.ws_col = vc_cons[currcons].d->vc_cols;
ws.ws_ypixel = video_scan_lines;
if ((ws.ws_row != cws->ws_row || ws.ws_col != cws->ws_col) &&
vc_cons[currcons].d->vc_tty->pgrp > 0)
* might also be negative. If the given position is out of
* bounds, the cursor is placed at the nearest margin.
*/
-static void gotoxy(int currcons, int new_x, int new_y)
+static void gotoxy(struct vc_data *vc, int new_x, int new_y)
{
int min_y, max_y;
if (new_x < 0)
- x = 0;
- else
- if (new_x >= video_num_columns)
- x = video_num_columns - 1;
+ vc->vc_x = 0;
+ else {
+ if (new_x >= vc->vc_cols)
+ vc->vc_x = vc->vc_cols - 1;
else
- x = new_x;
- if (decom) {
- min_y = top;
- max_y = bottom;
+ vc->vc_x = new_x;
+ }
+
+ if (vc->vc_decom) {
+ min_y = vc->vc_top;
+ max_y = vc->vc_bottom;
} else {
min_y = 0;
- max_y = video_num_lines;
+ max_y = vc->vc_rows;
}
if (new_y < min_y)
- y = min_y;
+ vc->vc_y = min_y;
else if (new_y >= max_y)
- y = max_y - 1;
+ vc->vc_y = max_y - 1;
else
- y = new_y;
- pos = origin + y*video_size_row + (x<<1);
- need_wrap = 0;
+ vc->vc_y = new_y;
+ vc->vc_pos = vc->vc_origin + vc->vc_y * vc->vc_size_row + (vc->vc_x<<1);
+ vc->vc_need_wrap = 0;
}
/* for absolute user moves, when decom is set */
static void gotoxay(int currcons, int new_x, int new_y)
{
- gotoxy(currcons, new_x, decom ? (top+new_y) : new_y);
+ gotoxy(vc_cons[currcons].d, new_x, decom ? (top+new_y) : new_y);
}
void scrollback(int lines)
int currcons = fg_console;
if (!lines)
- lines = video_num_lines/2;
+ lines = vc_cons[currcons].d->vc_rows/2;
scrolldelta(-lines);
}
int currcons = fg_console;
if (!lines)
- lines = video_num_lines/2;
+ lines = vc_cons[currcons].d->vc_rows/2;
scrolldelta(lines);
}
*/
if (y+1 == bottom)
scrup(currcons,top,bottom,1);
- else if (y < video_num_lines-1) {
+ else if (y < vc_cons[currcons].d->vc_rows-1) {
y++;
- pos += video_size_row;
+ pos += vc_cons[currcons].d->vc_size_row;
}
need_wrap = 0;
}
scrdown(currcons,top,bottom,1);
else if (y > 0) {
y--;
- pos -= video_size_row;
+ pos -= vc_cons[currcons].d->vc_size_row;
}
need_wrap = 0;
}
if (DO_UPDATE) {
/* do in two stages */
sw->con_clear(vc_cons[currcons].d, y, x, 1,
- video_num_columns-x);
+ vc_cons[currcons].d->vc_cols-x);
sw->con_clear(vc_cons[currcons].d, y+1, 0,
- video_num_lines-y-1,
- video_num_columns);
+ vc_cons[currcons].d->vc_rows-y-1,
+ vc_cons[currcons].d->vc_cols);
}
break;
case 1: /* erase from start to cursor */
if (DO_UPDATE) {
/* do in two stages */
sw->con_clear(vc_cons[currcons].d, 0, 0, y,
- video_num_columns);
+ vc_cons[currcons].d->vc_cols);
sw->con_clear(vc_cons[currcons].d, y, 0, 1,
x + 1);
}
break;
case 2: /* erase whole display */
- count = video_num_columns * video_num_lines;
+ count = vc_cons[currcons].d->vc_cols * vc_cons[currcons].d->vc_rows;
start = (unsigned short *) origin;
if (DO_UPDATE)
sw->con_clear(vc_cons[currcons].d, 0, 0,
- video_num_lines,
- video_num_columns);
+ vc_cons[currcons].d->vc_rows,
+ vc_cons[currcons].d->vc_cols);
break;
default:
return;
switch (vpar) {
case 0: /* erase from cursor to end of line */
- count = video_num_columns-x;
+ count = vc_cons[currcons].d->vc_cols-x;
start = (unsigned short *) pos;
if (DO_UPDATE)
sw->con_clear(vc_cons[currcons].d, y, x, 1,
- video_num_columns-x);
+ vc_cons[currcons].d->vc_cols-x);
break;
case 1: /* erase from start of line to cursor */
start = (unsigned short *) (pos - (x<<1));
break;
case 2: /* erase whole line */
start = (unsigned short *) (pos - (x<<1));
- count = video_num_columns;
+ count = vc_cons[currcons].d->vc_cols;
if (DO_UPDATE)
sw->con_clear(vc_cons[currcons].d, y, 0, 1,
- video_num_columns);
+ vc_cons[currcons].d->vc_cols);
break;
default:
return;
if (!vpar)
vpar++;
- count = (vpar > video_num_columns-x) ? (video_num_columns-x) : vpar;
+ count = (vpar > vc_cons[currcons].d->vc_cols-x) ? (vc_cons[currcons].d->vc_cols-x) : vpar;
scr_memsetw((unsigned short *) pos, video_erase_char, 2 * count);
if (DO_UPDATE)
case 3: /* 80/132 mode switch unimplemented */
deccolm = on_off;
#if 0
- (void) vc_resize(deccolm ? 132 : 80, video_num_lines);
+ (void) vc_resize(deccolm ? 132 : 80, vc_cons[currcons].d->vc_rows);
/* this alone does not suffice; some user mode
utility has to change the hardware regs */
#endif
case 5: /* Inverted screen on/off */
if (decscnm != on_off) {
decscnm = on_off;
- invert_screen(currcons, 0, screenbuf_size, 0);
+ invert_screen(vc_cons[currcons].d, 0, screenbuf_size, 0);
update_attr(currcons);
}
break;
{
switch(par[0]) {
case 1: /* set color for underline mode */
- if (can_do_color && par[1] < 16) {
+ if (vc_cons[currcons].d->vc_can_do_color &&
+ par[1] < 16) {
ulcolor = color_table[par[1]];
if (underline)
update_attr(currcons);
}
break;
case 2: /* set color for half intensity mode */
- if (can_do_color && par[1] < 16) {
+ if (vc_cons[currcons].d->vc_can_do_color &&
+ par[1] < 16) {
halfcolor = color_table[par[1]];
if (intensity == 0)
update_attr(currcons);
/* console_sem is held */
static void csi_at(int currcons, unsigned int nr)
{
- if (nr > video_num_columns - x)
- nr = video_num_columns - x;
+ if (nr > vc_cons[currcons].d->vc_cols - x)
+ nr = vc_cons[currcons].d->vc_cols - x;
else if (!nr)
nr = 1;
insert_char(currcons, nr);
/* console_sem is held */
static void csi_L(int currcons, unsigned int nr)
{
- if (nr > video_num_lines - y)
- nr = video_num_lines - y;
+ if (nr > vc_cons[currcons].d->vc_rows - y)
+ nr = vc_cons[currcons].d->vc_rows - y;
else if (!nr)
nr = 1;
scrdown(currcons,y,bottom,nr);
/* console_sem is held */
static void csi_P(int currcons, unsigned int nr)
{
- if (nr > video_num_columns - x)
- nr = video_num_columns - x;
+ if (nr > vc_cons[currcons].d->vc_cols - x)
+ nr = vc_cons[currcons].d->vc_cols - x;
else if (!nr)
nr = 1;
delete_char(currcons, nr);
/* console_sem is held */
static void csi_M(int currcons, unsigned int nr)
{
- if (nr > video_num_lines - y)
- nr = video_num_lines - y;
+ if (nr > vc_cons[currcons].d->vc_rows - y)
+ nr = vc_cons[currcons].d->vc_rows - y;
else if (!nr)
nr=1;
scrup(currcons,y,bottom,nr);
/* console_sem is held */
static void restore_cur(int currcons)
{
- gotoxy(currcons,saved_x,saved_y);
+ gotoxy(vc_cons[currcons].d,saved_x,saved_y);
intensity = s_intensity;
underline = s_underline;
blink = s_blink;
static void reset_terminal(int currcons, int do_clear)
{
top = 0;
- bottom = video_num_lines;
+ bottom = vc_cons[currcons].d->vc_rows;
vc_state = ESnormal;
ques = 0;
translate = set_translate(LAT1_MAP,currcons);
bell_pitch = DEFAULT_BELL_PITCH;
bell_duration = DEFAULT_BELL_DURATION;
- gotoxy(currcons,0,0);
+ gotoxy(vc_cons[currcons].d, 0, 0);
save_cur(currcons);
if (do_clear)
csi_J(currcons,2);
return;
case 9:
pos -= (x << 1);
- while (x < video_num_columns - 1) {
+ while (x < vc_cons[currcons].d->vc_cols - 1) {
x++;
if (tab_stop[x >> 5] & (1 << (x & 31)))
break;
switch(c) {
case 'G': case '`':
if (par[0]) par[0]--;
- gotoxy(currcons,par[0],y);
+ gotoxy(vc_cons[currcons].d, par[0], y);
return;
case 'A':
if (!par[0]) par[0]++;
- gotoxy(currcons,x,y-par[0]);
+ gotoxy(vc_cons[currcons].d, x, y-par[0]);
return;
case 'B': case 'e':
if (!par[0]) par[0]++;
- gotoxy(currcons,x,y+par[0]);
+ gotoxy(vc_cons[currcons].d, x, y+par[0]);
return;
case 'C': case 'a':
if (!par[0]) par[0]++;
- gotoxy(currcons,x+par[0],y);
+ gotoxy(vc_cons[currcons].d, x+par[0], y);
return;
case 'D':
if (!par[0]) par[0]++;
- gotoxy(currcons,x-par[0],y);
+ gotoxy(vc_cons[currcons].d, x-par[0], y);
return;
case 'E':
if (!par[0]) par[0]++;
- gotoxy(currcons,0,y+par[0]);
+ gotoxy(vc_cons[currcons].d, 0, y+par[0]);
return;
case 'F':
if (!par[0]) par[0]++;
- gotoxy(currcons,0,y-par[0]);
+ gotoxy(vc_cons[currcons].d, 0, y-par[0]);
return;
case 'd':
if (par[0]) par[0]--;
if (!par[0])
par[0]++;
if (!par[1])
- par[1] = video_num_lines;
+ par[1] = vc_cons[currcons].d->vc_rows;
/* Minimum allowed region is 2 lines */
if (par[0] < par[1] &&
- par[1] <= video_num_lines) {
+ par[1] <= vc_cons[currcons].d->vc_rows) {
top=par[0]-1;
bottom=par[1];
gotoxay(currcons,0,0);
csi_J(currcons, 2);
video_erase_char =
(video_erase_char & 0xff00) | ' ';
- do_update_region(currcons, origin, screenbuf_size/2);
+ do_update_region(vc_cons[currcons].d, origin, screenbuf_size/2);
}
return;
case ESsetG0:
DECLARE_MUTEX(con_buf_sem);
/* acquires console_sem */
-static int do_con_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count)
+static int do_con_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
#ifdef VT_BUF_VRAM_ONLY
#define FLUSH do { } while(0);
orig_buf = buf;
orig_count = count;
- if (from_user) {
-
- down(&con_buf_sem);
-
-again:
- if (count > CON_BUF_SIZE)
- count = CON_BUF_SIZE;
- console_conditional_schedule();
- if (copy_from_user(con_buf, buf, count)) {
- n = 0; /* ?? are error codes legal here ?? */
- goto out;
- }
-
- buf = con_buf;
- }
-
/* 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
/* undraw cursor first */
if (IS_FG)
- hide_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
while (!tty->stopped && count) {
int orig = *buf;
draw_x = x;
draw_from = pos;
}
- if (x == video_num_columns - 1) {
+ if (x == vc_cons[currcons].d->vc_cols - 1) {
need_wrap = decawm;
draw_to = pos+2;
} else {
release_console_sem();
out:
- if (from_user) {
- /* If the user requested something larger than
- * the CON_BUF_SIZE, and the tty is not stopped,
- * keep going.
- */
- if ((orig_count > CON_BUF_SIZE) && !tty->stopped) {
- orig_count -= CON_BUF_SIZE;
- orig_buf += CON_BUF_SIZE;
- count = orig_count;
- buf = orig_buf;
- goto again;
- }
-
- up(&con_buf_sem);
- }
-
return n;
#undef FLUSH
}
if (want_console >= 0) {
if (want_console != fg_console &&
vc_cons_allocated(want_console)) {
- hide_cursor(fg_console);
+ hide_cursor(vc_cons[fg_console].d);
change_console(want_console);
/* we only changed when the console had already
been allocated - a new console is not created
if (!printable || test_and_set_bit(0, &printing))
return;
- pm_access(pm_con);
-
if (kmsg_redirect && vc_cons_allocated(kmsg_redirect - 1))
currcons = kmsg_redirect - 1;
/* undraw cursor first */
if (IS_FG)
- hide_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
start = (ushort *)pos;
}
scr_writew((attr << 8) + c, (unsigned short *) pos);
cnt++;
- if (myx == video_num_columns - 1) {
+ if (myx == vc_cons[currcons].d->vc_cols - 1) {
need_wrap = 1;
continue;
}
if (IS_VISIBLE)
sw->con_putcs(vc_cons[currcons].d, start, cnt, y, x);
x += cnt;
- if (x == video_num_columns) {
+ if (x == vc_cons[currcons].d->vc_cols) {
x--;
need_wrap = 1;
}
}
- set_cursor(currcons);
+ set_cursor(vc_cons[currcons].d);
if (!oops_in_progress)
poke_blanked_console();
* /dev/ttyN handling
*/
-static int con_write(struct tty_struct *tty, int from_user,
- const unsigned char *buf, int count)
+static int con_write(struct tty_struct *tty, const unsigned char *buf, int count)
{
int retval;
- pm_access(pm_con);
- retval = do_con_write(tty, from_user, buf, count);
+ retval = do_con_write(tty, buf, count);
con_flush_chars(tty);
return retval;
{
if (in_interrupt())
return; /* n_r3964 calls put_char() from interrupt context */
- pm_access(pm_con);
- do_con_write(tty, 0, &ch, 1);
+ do_con_write(tty, &ch, 1);
}
static int con_write_room(struct tty_struct *tty)
if (in_interrupt()) /* from flush_to_ldisc */
return;
- pm_access(pm_con);
-
/* if we race with con_close(), vt may be null */
acquire_console_sem();
vt = tty->driver_data;
if (vt)
- set_cursor(vt->vc_num);
+ set_cursor(vc_cons[vt->vc_num].d);
release_console_sem();
}
vc_cons[currcons].d->vc_tty = tty;
if (!tty->winsize.ws_row && !tty->winsize.ws_col) {
- tty->winsize.ws_row = video_num_lines;
- tty->winsize.ws_col = video_num_columns;
+ tty->winsize.ws_row = vc_cons[currcons].d->vc_rows;
+ tty->winsize.ws_col = vc_cons[currcons].d->vc_cols;
}
release_console_sem();
vcs_make_devfs(tty);
{
int j, k ;
- video_num_columns = cols;
- video_num_lines = rows;
- video_size_row = cols<<1;
- screenbuf_size = video_num_lines * video_size_row;
+ vc_cons[currcons].d->vc_cols = cols;
+ vc_cons[currcons].d->vc_rows = rows;
+ vc_cons[currcons].d->vc_size_row = cols<<1;
+ screenbuf_size = vc_cons[currcons].d->vc_rows * vc_cons[currcons].d->vc_size_row;
set_origin(currcons);
pos = origin;
alloc_bootmem(sizeof(struct vc_data));
vt_cons[currcons] = (struct vt_struct *)
alloc_bootmem(sizeof(struct vt_struct));
+ vc_cons[currcons].d->vc_vt = vt_cons[currcons];
visual_init(currcons, 1);
screenbuf = (unsigned short *) alloc_bootmem(screenbuf_size);
kmalloced = 0;
- vc_init(currcons, video_num_lines, video_num_columns,
+ vc_init(currcons, vc_cons[currcons].d->vc_rows, vc_cons[currcons].d->vc_cols,
currcons || !sw->con_save_screen);
}
currcons = fg_console = 0;
master_display_fg = vc_cons[currcons].d;
set_origin(currcons);
save_screen(currcons);
- gotoxy(currcons,x,y);
+ gotoxy(vc_cons[currcons].d, x, y);
csi_J(currcons, 0);
update_screen(fg_console);
printk("Console: %s %s %dx%d",
- can_do_color ? "colour" : "mono",
- display_desc, video_num_columns, video_num_lines);
+ vc_cons[currcons].d->vc_can_do_color ? "colour" : "mono",
+ display_desc, vc_cons[currcons].d->vc_cols, vc_cons[currcons].d->vc_rows);
printable = 1;
printk("\n");
origin = (unsigned long) screenbuf;
visible_origin = origin;
scr_end = origin + screenbuf_size;
- pos = origin + video_size_row*y + 2*x;
+ pos = origin + vc_cons[currcons].d->vc_size_row*y + 2*x;
visual_init(i, 0);
update_attr(i);
/* entering graphics mode? */
if (entering_gfx) {
- hide_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
save_screen(currcons);
sw->con_blank(vc_cons[currcons].d, -1, 1);
console_blanked = fg_console + 1;
return;
}
- hide_cursor(currcons);
+ hide_cursor(vc_cons[currcons].d);
del_timer_sync(&console_timer);
blank_timer_expired = 0;
if (vesa_blank_mode)
sw->con_blank(vc_cons[currcons].d, vesa_blank_mode + 1, 0);
}
-
+EXPORT_SYMBOL(do_blank_screen);
/*
* Called by timer as well as from vt_console_driver
if (console_blank_hook)
console_blank_hook(0);
set_palette(currcons);
- set_cursor(fg_console);
+ set_cursor(vc_cons[fg_console].d);
}
+EXPORT_SYMBOL(do_unblank_screen);
/*
* This is called by the outside world to cause a forced unblank, mostly for
if (rc)
goto out;
+ op->height = font.height;
+ op->width = font.width;
+ op->charcount = font.charcount;
+
if (op->data && copy_to_user(op->data, font.data, c))
rc = -EFAULT;
*/
/* used by selection */
-u16 screen_glyph(int currcons, int offset)
+u16 screen_glyph(struct vc_data *vc, int offset)
{
- u16 w = scr_readw(screenpos(currcons, offset, 1));
+ u16 w = scr_readw(screenpos(vc, offset, 1));
u16 c = w & 0xff;
- if (w & hi_font_mask)
+ if (w & vc->vc_hi_font_mask)
c |= 0x100;
return c;
}
/* used by vcs - note the word offset */
-unsigned short *screen_pos(int currcons, int w_offset, int viewed)
+unsigned short *screen_pos(struct vc_data *vc, int w_offset, int viewed)
{
- return screenpos(currcons, 2 * w_offset, viewed);
+ return screenpos(vc, 2 * w_offset, viewed);
}
-void getconsxy(int currcons, unsigned char *p)
+void getconsxy(struct vc_data *vc, unsigned char *p)
{
- p[0] = x;
- p[1] = y;
+ p[0] = vc->vc_x;
+ p[1] = vc->vc_y;
}
-void putconsxy(int currcons, unsigned char *p)
+void putconsxy(struct vc_data *vc, unsigned char *p)
{
- gotoxy(currcons, p[0], p[1]);
- set_cursor(currcons);
+ gotoxy(vc, p[0], p[1]);
+ set_cursor(vc);
}
-u16 vcs_scr_readw(int currcons, const u16 *org)
+u16 vcs_scr_readw(struct vc_data *vc, const u16 *org)
{
- if ((unsigned long)org == pos && softcursor_original != -1)
+ if ((unsigned long)org == vc->vc_pos && softcursor_original != -1)
return softcursor_original;
return scr_readw(org);
}
-void vcs_scr_writew(int currcons, u16 val, u16 *org)
+void vcs_scr_writew(struct vc_data *vc, u16 val, u16 *org)
{
scr_writew(val, org);
- if ((unsigned long)org == pos) {
+ if ((unsigned long)org == vc->vc_pos) {
softcursor_original = -1;
- add_softcursor(currcons);
+ add_softcursor(vc);
}
}
EXPORT_SYMBOL(default_red);
EXPORT_SYMBOL(default_grn);
EXPORT_SYMBOL(default_blu);
-EXPORT_SYMBOL(vc_cons_allocated);
EXPORT_SYMBOL(update_region);
EXPORT_SYMBOL(redraw_screen);
EXPORT_SYMBOL(vc_resize);
git://git.onelab.eu / linux-2.6.git / blobdiff