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-rw-r--r--drivers/video/console/Kconfig25
-rw-r--r--drivers/video/console/bitblit.c15
-rw-r--r--drivers/video/console/dummycon.c83
-rw-r--r--drivers/video/console/fbcon.c375
-rw-r--r--drivers/video/console/fbcon.h9
-rw-r--r--drivers/video/console/fbcon_ccw.c15
-rw-r--r--drivers/video/console/fbcon_cw.c15
-rw-r--r--drivers/video/console/fbcon_rotate.c1
-rw-r--r--drivers/video/console/fbcon_ud.c15
-rw-r--r--drivers/video/console/newport_con.c19
-rw-r--r--drivers/video/console/sticon.c12
-rw-r--r--drivers/video/console/tileblit.c3
-rw-r--r--drivers/video/console/vgacon.c225
13 files changed, 184 insertions, 628 deletions
diff --git a/drivers/video/console/Kconfig b/drivers/video/console/Kconfig
index 38da6e299149..c31715019cb4 100644
--- a/drivers/video/console/Kconfig
+++ b/drivers/video/console/Kconfig
@@ -22,31 +22,6 @@ config VGA_CONSOLE
Say Y.
-config VGACON_SOFT_SCROLLBACK
- bool "Enable Scrollback Buffer in System RAM"
- depends on VGA_CONSOLE
- default n
- help
- The scrollback buffer of the standard VGA console is located in
- the VGA RAM. The size of this RAM is fixed and is quite small.
- If you require a larger scrollback buffer, this can be placed in
- System RAM which is dynamically allocated during initialization.
- Placing the scrollback buffer in System RAM will slightly slow
- down the console.
-
- If you want this feature, say 'Y' here and enter the amount of
- RAM to allocate for this buffer. If unsure, say 'N'.
-
-config VGACON_SOFT_SCROLLBACK_SIZE
- int "Scrollback Buffer Size (in KB)"
- depends on VGACON_SOFT_SCROLLBACK
- range 1 1024
- default "64"
- help
- Enter the amount of System RAM to allocate for the scrollback
- buffer. Each 64KB will give you approximately 16 80x25
- screenfuls of scrollback buffer
-
config MDA_CONSOLE
depends on !M68K && !PARISC && ISA
tristate "MDA text console (dual-headed)"
diff --git a/drivers/video/console/bitblit.c b/drivers/video/console/bitblit.c
index dbfe4eecf12e..a7ab8323304d 100644
--- a/drivers/video/console/bitblit.c
+++ b/drivers/video/console/bitblit.c
@@ -216,7 +216,7 @@ static void bit_clear_margins(struct vc_data *vc, struct fb_info *info,
region.color = 0;
region.rop = ROP_COPY;
- if (rw && !bottom_only) {
+ if ((int) rw > 0 && !bottom_only) {
region.dx = info->var.xoffset + rs;
region.dy = 0;
region.width = rw;
@@ -224,7 +224,7 @@ static void bit_clear_margins(struct vc_data *vc, struct fb_info *info,
info->fbops->fb_fillrect(info, &region);
}
- if (bh) {
+ if ((int) bh > 0) {
region.dx = info->var.xoffset;
region.dy = info->var.yoffset + bs;
region.width = rs;
@@ -234,7 +234,7 @@ static void bit_clear_margins(struct vc_data *vc, struct fb_info *info,
}
static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
- int softback_lines, int fg, int bg)
+ int fg, int bg)
{
struct fb_cursor cursor;
struct fbcon_ops *ops = info->fbcon_par;
@@ -247,15 +247,6 @@ static void bit_cursor(struct vc_data *vc, struct fb_info *info, int mode,
cursor.set = 0;
- if (softback_lines) {
- if (y + softback_lines >= vc->vc_rows) {
- mode = CM_ERASE;
- ops->cursor_flash = 0;
- return;
- } else
- y += softback_lines;
- }
-
c = scr_readw((u16 *) vc->vc_pos);
attribute = get_attribute(info, c);
src = vc->vc_font.data + ((c & charmask) * (w * vc->vc_font.height));
diff --git a/drivers/video/console/dummycon.c b/drivers/video/console/dummycon.c
index b30e7d87804b..04e75d5efb19 100644
--- a/drivers/video/console/dummycon.c
+++ b/drivers/video/console/dummycon.c
@@ -41,12 +41,69 @@ static void dummycon_init(struct vc_data *vc, int init)
vc_resize(vc, DUMMY_COLUMNS, DUMMY_ROWS);
}
-static int dummycon_dummy(void)
+static void dummycon_deinit(struct vc_data *vc)
+{
+}
+
+static void dummycon_clear(struct vc_data *vc, int a, int b, int c, int d)
+{
+}
+
+static void dummycon_putc(struct vc_data *vc, int a, int b, int c)
+{
+}
+
+static void dummycon_putcs(struct vc_data *vc, const unsigned short *s, int a, int b, int c)
+{
+}
+
+static void dummycon_cursor(struct vc_data *vc, int a)
+{
+}
+
+static int dummycon_scroll(struct vc_data *vc, int a, int b, int c, int d)
{
return 0;
}
-#define DUMMY (void *)dummycon_dummy
+static int dummycon_switch(struct vc_data *vc)
+{
+ return 0;
+}
+
+static int dummycon_blank(struct vc_data *vc, int a, int b)
+{
+ return 0;
+}
+
+static int dummycon_font_set(struct vc_data *vc, struct console_font *f, unsigned u)
+{
+ return 0;
+}
+
+static int dummycon_font_default(struct vc_data *vc, struct console_font *f, char *c)
+{
+ return 0;
+}
+
+static int dummycon_font_copy(struct vc_data *vc, int a)
+{
+ return 0;
+}
+
+static void con_bmove(struct vc_data *vc, int a, int b, int c, int d, int e, intf)
+{
+}
+
+static int con_set_palette(struct vc_data *vc, unsigned char *p)
+{
+ return 0;
+}
+
+static int con_scrolldelta(struct vc_data *vc, int x)
+{
+ return 0;
+}
/*
* The console `switch' structure for the dummy console
@@ -58,19 +115,19 @@ const struct consw dummy_con = {
.owner = THIS_MODULE,
.con_startup = dummycon_startup,
.con_init = dummycon_init,
- .con_deinit = DUMMY,
- .con_clear = DUMMY,
- .con_putc = DUMMY,
- .con_putcs = DUMMY,
- .con_cursor = DUMMY,
- .con_scroll = DUMMY,
.con_bmove = DUMMY,
- .con_switch = DUMMY,
- .con_blank = DUMMY,
- .con_font_set = DUMMY,
- .con_font_default = DUMMY,
- .con_font_copy = DUMMY,
.con_set_palette = DUMMY,
.con_scrolldelta = DUMMY,
+ .con_deinit = dummycon_deinit,
+ .con_clear = dummycon_clear,
+ .con_putc = dummycon_putc,
+ .con_putcs = dummycon_putcs,
+ .con_cursor = dummycon_cursor,
+ .con_scroll = dummycon_scroll,
+ .con_switch = dummycon_switch,
+ .con_blank = dummycon_blank,
+ .con_font_set = dummycon_font_set,
+ .con_font_default = dummycon_font_default,
+ .con_font_copy = dummycon_font_copy,
};
EXPORT_SYMBOL_GPL(dummy_con);
diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index c03c5b9602bb..ceae076dc96b 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -101,12 +101,6 @@ static int logo_lines;
/* logo_shown is an index to vc_cons when >= 0; otherwise follows FBCON_LOGO
enums. */
static int logo_shown = FBCON_LOGO_CANSHOW;
-/* Software scrollback */
-static int fbcon_softback_size = 32768;
-static unsigned long softback_buf, softback_curr;
-static unsigned long softback_in;
-static unsigned long softback_top, softback_end;
-static int softback_lines;
/* console mappings */
static int first_fb_vc;
static int last_fb_vc = MAX_NR_CONSOLES - 1;
@@ -140,8 +134,6 @@ static int fbcon_has_sysfs;
static const struct consw fb_con;
-#define CM_SOFTBACK (8)
-
#define advance_row(p, delta) (unsigned short *)((unsigned long)(p) + (delta) * vc->vc_size_row)
static int fbcon_set_origin(struct vc_data *);
@@ -171,7 +163,6 @@ static void fbcon_bmove(struct vc_data *vc, int sy, int sx, int dy, int dx,
static int fbcon_switch(struct vc_data *vc);
static int fbcon_blank(struct vc_data *vc, int blank, int mode_switch);
static int fbcon_set_palette(struct vc_data *vc, unsigned char *table);
-static int fbcon_scrolldelta(struct vc_data *vc, int lines);
/*
* Internal routines
@@ -350,18 +341,6 @@ static int get_color(struct vc_data *vc, struct fb_info *info,
return color;
}
-static void fbcon_update_softback(struct vc_data *vc)
-{
- int l = fbcon_softback_size / vc->vc_size_row;
-
- if (l > 5)
- softback_end = softback_buf + l * vc->vc_size_row;
- else
- /* Smaller scrollback makes no sense, and 0 would screw
- the operation totally */
- softback_top = 0;
-}
-
static void fb_flashcursor(struct work_struct *work)
{
struct fb_info *info = container_of(work, struct fb_info, queue);
@@ -391,7 +370,7 @@ static void fb_flashcursor(struct work_struct *work)
c = scr_readw((u16 *) vc->vc_pos);
mode = (!ops->cursor_flash || ops->cursor_state.enable) ?
CM_ERASE : CM_DRAW;
- ops->cursor(vc, info, mode, softback_lines, get_color(vc, info, c, 1),
+ ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
get_color(vc, info, c, 0));
console_unlock();
}
@@ -451,13 +430,7 @@ static int __init fb_console_setup(char *this_opt)
}
if (!strncmp(options, "scrollback:", 11)) {
- options += 11;
- if (*options) {
- fbcon_softback_size = simple_strtoul(options, &options, 0);
- if (*options == 'k' || *options == 'K') {
- fbcon_softback_size *= 1024;
- }
- }
+ pr_warn("Ignoring scrollback size option\n");
continue;
}
@@ -962,31 +935,6 @@ static const char *fbcon_startup(void)
p->con_rotate = initial_rotation;
set_blitting_type(vc, info);
- if (info->fix.type != FB_TYPE_TEXT) {
- if (fbcon_softback_size) {
- if (!softback_buf) {
- softback_buf =
- (unsigned long)
- kmalloc(fbcon_softback_size,
- GFP_KERNEL);
- if (!softback_buf) {
- fbcon_softback_size = 0;
- softback_top = 0;
- }
- }
- } else {
- if (softback_buf) {
- kfree((void *) softback_buf);
- softback_buf = 0;
- softback_top = 0;
- }
- }
- if (softback_buf)
- softback_in = softback_top = softback_curr =
- softback_buf;
- softback_lines = 0;
- }
-
/* Setup default font */
if (!p->fontdata && !vc->vc_font.data) {
if (!fontname[0] || !(font = find_font(fontname)))
@@ -1149,9 +1097,6 @@ static void fbcon_init(struct vc_data *vc, int init)
if (logo)
fbcon_prepare_logo(vc, info, cols, rows, new_cols, new_rows);
- if (vc == svc && softback_buf)
- fbcon_update_softback(vc);
-
if (ops->rotate_font && ops->rotate_font(info, vc)) {
ops->rotate = FB_ROTATE_UR;
set_blitting_type(vc, info);
@@ -1311,7 +1256,6 @@ static void fbcon_cursor(struct vc_data *vc, int mode)
{
struct fb_info *info = registered_fb[con2fb_map[vc->vc_num]];
struct fbcon_ops *ops = info->fbcon_par;
- int y;
int c = scr_readw((u16 *) vc->vc_pos);
ops->cur_blink_jiffies = msecs_to_jiffies(vc->vc_cur_blink_ms);
@@ -1325,16 +1269,8 @@ static void fbcon_cursor(struct vc_data *vc, int mode)
fbcon_add_cursor_timer(info);
ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1;
- if (mode & CM_SOFTBACK) {
- mode &= ~CM_SOFTBACK;
- y = softback_lines;
- } else {
- if (softback_lines)
- fbcon_set_origin(vc);
- y = 0;
- }
- ops->cursor(vc, info, mode, y, get_color(vc, info, c, 1),
+ ops->cursor(vc, info, mode, get_color(vc, info, c, 1),
get_color(vc, info, c, 0));
}
@@ -1405,8 +1341,6 @@ static void fbcon_set_disp(struct fb_info *info, struct fb_var_screeninfo *var,
if (CON_IS_VISIBLE(vc)) {
update_screen(vc);
- if (softback_buf)
- fbcon_update_softback(vc);
}
}
@@ -1544,99 +1478,6 @@ static __inline__ void ypan_down_redraw(struct vc_data *vc, int t, int count)
scrollback_current = 0;
}
-static void fbcon_redraw_softback(struct vc_data *vc, struct display *p,
- long delta)
-{
- int count = vc->vc_rows;
- unsigned short *d, *s;
- unsigned long n;
- int line = 0;
-
- d = (u16 *) softback_curr;
- if (d == (u16 *) softback_in)
- d = (u16 *) vc->vc_origin;
- n = softback_curr + delta * vc->vc_size_row;
- softback_lines -= delta;
- if (delta < 0) {
- if (softback_curr < softback_top && n < softback_buf) {
- n += softback_end - softback_buf;
- if (n < softback_top) {
- softback_lines -=
- (softback_top - n) / vc->vc_size_row;
- n = softback_top;
- }
- } else if (softback_curr >= softback_top
- && n < softback_top) {
- softback_lines -=
- (softback_top - n) / vc->vc_size_row;
- n = softback_top;
- }
- } else {
- if (softback_curr > softback_in && n >= softback_end) {
- n += softback_buf - softback_end;
- if (n > softback_in) {
- n = softback_in;
- softback_lines = 0;
- }
- } else if (softback_curr <= softback_in && n > softback_in) {
- n = softback_in;
- softback_lines = 0;
- }
- }
- if (n == softback_curr)
- return;
- softback_curr = n;
- s = (u16 *) softback_curr;
- if (s == (u16 *) softback_in)
- s = (u16 *) vc->vc_origin;
- while (count--) {
- unsigned short *start;
- unsigned short *le;
- unsigned short c;
- int x = 0;
- unsigned short attr = 1;
-
- start = s;
- le = advance_row(s, 1);
- do {
- c = scr_readw(s);
- if (attr != (c & 0xff00)) {
- attr = c & 0xff00;
- if (s > start) {
- fbcon_putcs(vc, start, s - start,
- line, x);
- x += s - start;
- start = s;
- }
- }
- if (c == scr_readw(d)) {
- if (s > start) {
- fbcon_putcs(vc, start, s - start,
- line, x);
- x += s - start + 1;
- start = s + 1;
- } else {
- x++;
- start++;
- }
- }
- s++;
- d++;
- } while (s < le);
- if (s > start)
- fbcon_putcs(vc, start, s - start, line, x);
- line++;
- if (d == (u16 *) softback_end)
- d = (u16 *) softback_buf;
- if (d == (u16 *) softback_in)
- d = (u16 *) vc->vc_origin;
- if (s == (u16 *) softback_end)
- s = (u16 *) softback_buf;
- if (s == (u16 *) softback_in)
- s = (u16 *) vc->vc_origin;
- }
-}
-
static void fbcon_redraw_move(struct vc_data *vc, struct display *p,
int line, int count, int dy)
{
@@ -1776,31 +1617,6 @@ static void fbcon_redraw(struct vc_data *vc, struct display *p,
}
}
-static inline void fbcon_softback_note(struct vc_data *vc, int t,
- int count)
-{
- unsigned short *p;
-
- if (vc->vc_num != fg_console)
- return;
- p = (unsigned short *) (vc->vc_origin + t * vc->vc_size_row);
-
- while (count) {
- scr_memcpyw((u16 *) softback_in, p, vc->vc_size_row);
- count--;
- p = advance_row(p, 1);
- softback_in += vc->vc_size_row;
- if (softback_in == softback_end)
- softback_in = softback_buf;
- if (softback_in == softback_top) {
- softback_top += vc->vc_size_row;
- if (softback_top == softback_end)
- softback_top = softback_buf;
- }
- }
- softback_curr = softback_in;
-}
-
static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
int count)
{
@@ -1823,8 +1639,6 @@ static int fbcon_scroll(struct vc_data *vc, int t, int b, int dir,
case SM_UP:
if (count > vc->vc_rows) /* Maximum realistic size */
count = vc->vc_rows;
- if (softback_top)
- fbcon_softback_note(vc, t, count);
if (logo_shown >= 0)
goto redraw_up;
switch (p->scrollmode) {
@@ -2117,6 +1931,9 @@ static void updatescrollmode(struct display *p,
}
}
+#define PITCH(w) (((w) + 7) >> 3)
+#define CALC_FONTSZ(h, p, c) ((h) * (p) * (c)) /* size = height * pitch * charcount */
+
static int fbcon_resize(struct vc_data *vc, unsigned int width,
unsigned int height, unsigned int user)
{
@@ -2126,6 +1943,24 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width,
struct fb_var_screeninfo var = info->var;
int x_diff, y_diff, virt_w, virt_h, virt_fw, virt_fh;
+ if (p->userfont && FNTSIZE(vc->vc_font.data)) {
+ int size;
+ int pitch = PITCH(vc->vc_font.width);
+
+ /*
+ * If user font, ensure that a possible change to user font
+ * height or width will not allow a font data out-of-bounds access.
+ * NOTE: must use original charcount in calculation as font
+ * charcount can change and cannot be used to determine the
+ * font data allocated size.
+ */
+ if (pitch <= 0)
+ return -EINVAL;
+ size = CALC_FONTSZ(vc->vc_font.height, pitch, FNTCHARCNT(vc->vc_font.data));
+ if (size > FNTSIZE(vc->vc_font.data))
+ return -EINVAL;
+ }
+
virt_w = FBCON_SWAP(ops->rotate, width, height);
virt_h = FBCON_SWAP(ops->rotate, height, width);
virt_fw = FBCON_SWAP(ops->rotate, vc->vc_font.width,
@@ -2151,7 +1986,7 @@ static int fbcon_resize(struct vc_data *vc, unsigned int width,
return -EINVAL;
DPRINTK("resize now %ix%i\n", var.xres, var.yres);
- if (CON_IS_VISIBLE(vc)) {
+ if (CON_IS_VISIBLE(vc) && vc->vc_mode == KD_TEXT) {
var.activate = FB_ACTIVATE_NOW |
FB_ACTIVATE_FORCE;
fb_set_var(info, &var);
@@ -2174,14 +2009,6 @@ static int fbcon_switch(struct vc_data *vc)
info = registered_fb[con2fb_map[vc->vc_num]];
ops = info->fbcon_par;
- if (softback_top) {
- if (softback_lines)
- fbcon_set_origin(vc);
- softback_top = softback_curr = softback_in = softback_buf;
- softback_lines = 0;
- fbcon_update_softback(vc);
- }
-
if (logo_shown >= 0) {
struct vc_data *conp2 = vc_cons[logo_shown].d;
@@ -2407,6 +2234,9 @@ static int fbcon_get_font(struct vc_data *vc, struct console_font *font)
if (font->width <= 8) {
j = vc->vc_font.height;
+ if (font->charcount * j > FNTSIZE(fontdata))
+ return -EINVAL;
+
for (i = 0; i < font->charcount; i++) {
memcpy(data, fontdata, j);
memset(data + j, 0, 32 - j);
@@ -2415,6 +2245,9 @@ static int fbcon_get_font(struct vc_data *vc, struct console_font *font)
}
} else if (font->width <= 16) {
j = vc->vc_font.height * 2;
+ if (font->charcount * j > FNTSIZE(fontdata))
+ return -EINVAL;
+
for (i = 0; i < font->charcount; i++) {
memcpy(data, fontdata, j);
memset(data + j, 0, 64 - j);
@@ -2422,6 +2255,9 @@ static int fbcon_get_font(struct vc_data *vc, struct console_font *font)
fontdata += j;
}
} else if (font->width <= 24) {
+ if (font->charcount * (vc->vc_font.height * sizeof(u32)) > FNTSIZE(fontdata))
+ return -EINVAL;
+
for (i = 0; i < font->charcount; i++) {
for (j = 0; j < vc->vc_font.height; j++) {
*data++ = fontdata[0];
@@ -2434,6 +2270,9 @@ static int fbcon_get_font(struct vc_data *vc, struct console_font *font)
}
} else {
j = vc->vc_font.height * 4;
+ if (font->charcount * j > FNTSIZE(fontdata))
+ return -EINVAL;
+
for (i = 0; i < font->charcount; i++) {
memcpy(data, fontdata, j);
memset(data + j, 0, 128 - j);
@@ -2515,9 +2354,6 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
int cnt;
char *old_data = NULL;
- if (CON_IS_VISIBLE(vc) && softback_lines)
- fbcon_set_origin(vc);
-
resize = (w != vc->vc_font.width) || (h != vc->vc_font.height);
if (p->userfont)
old_data = vc->vc_font.data;
@@ -2543,8 +2379,6 @@ static int fbcon_do_set_font(struct vc_data *vc, int w, int h,
cols /= w;
rows /= h;
vc_resize(vc, cols, rows);
- if (CON_IS_VISIBLE(vc) && softback_buf)
- fbcon_update_softback(vc);
} else if (CON_IS_VISIBLE(vc)
&& vc->vc_mode == KD_TEXT) {
fbcon_clear_margins(vc, 0);
@@ -2587,7 +2421,7 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigne
int size;
int i, csum;
u8 *new_data, *data = font->data;
- int pitch = (font->width+7) >> 3;
+ int pitch = PITCH(font->width);
/* Is there a reason why fbconsole couldn't handle any charcount >256?
* If not this check should be changed to charcount < 256 */
@@ -2603,7 +2437,7 @@ static int fbcon_set_font(struct vc_data *vc, struct console_font *font, unsigne
if (fbcon_invalid_charcount(info, charcount))
return -EINVAL;
- size = h * pitch * charcount;
+ size = CALC_FONTSZ(h, pitch, charcount);
new_data = kmalloc(FONT_EXTRA_WORDS * sizeof(int) + size, GFP_USER);
@@ -2702,19 +2536,7 @@ static int fbcon_set_palette(struct vc_data *vc, unsigned char *table)
static u16 *fbcon_screen_pos(struct vc_data *vc, int offset)
{
- unsigned long p;
- int line;
-
- if (vc->vc_num != fg_console || !softback_lines)
- return (u16 *) (vc->vc_origin + offset);
- line = offset / vc->vc_size_row;
- if (line >= softback_lines)
- return (u16 *) (vc->vc_origin + offset -
- softback_lines * vc->vc_size_row);
- p = softback_curr + offset;
- if (p >= softback_end)
- p += softback_buf - softback_end;
- return (u16 *) p;
+ return (u16 *) (vc->vc_origin + offset);
}
static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos,
@@ -2728,22 +2550,7 @@ static unsigned long fbcon_getxy(struct vc_data *vc, unsigned long pos,
x = offset % vc->vc_cols;
y = offset / vc->vc_cols;
- if (vc->vc_num == fg_console)
- y += softback_lines;
- ret = pos + (vc->vc_cols - x) * 2;
- } else if (vc->vc_num == fg_console && softback_lines) {
- unsigned long offset = pos - softback_curr;
-
- if (pos < softback_curr)
- offset += softback_end - softback_buf;
- offset /= 2;
- x = offset % vc->vc_cols;
- y = offset / vc->vc_cols;
ret = pos + (vc->vc_cols - x) * 2;
- if (ret == softback_end)
- ret = softback_buf;
- if (ret == softback_in)
- ret = vc->vc_origin;
} else {
/* Should not happen */
x = y = 0;
@@ -2771,107 +2578,11 @@ static void fbcon_invert_region(struct vc_data *vc, u16 * p, int cnt)
a = ((a) & 0x88ff) | (((a) & 0x7000) >> 4) |
(((a) & 0x0700) << 4);
scr_writew(a, p++);
- if (p == (u16 *) softback_end)
- p = (u16 *) softback_buf;
- if (p == (u16 *) softback_in)
- p = (u16 *) vc->vc_origin;
}
}
-static int fbcon_scrolldelta(struct vc_data *vc, int lines)
-{
- struct fb_info *info = registered_fb[con2fb_map[fg_console]];
- struct fbcon_ops *ops = info->fbcon_par;
- struct display *disp = &fb_display[fg_console];
- int offset, limit, scrollback_old;
-
- if (softback_top) {
- if (vc->vc_num != fg_console)
- return 0;
- if (vc->vc_mode != KD_TEXT || !lines)
- return 0;
- if (logo_shown >= 0) {
- struct vc_data *conp2 = vc_cons[logo_shown].d;
-
- if (conp2->vc_top == logo_lines
- && conp2->vc_bottom == conp2->vc_rows)
- conp2->vc_top = 0;
- if (logo_shown == vc->vc_num) {
- unsigned long p, q;
- int i;
-
- p = softback_in;
- q = vc->vc_origin +
- logo_lines * vc->vc_size_row;
- for (i = 0; i < logo_lines; i++) {
- if (p == softback_top)
- break;
- if (p == softback_buf)
- p = softback_end;
- p -= vc->vc_size_row;
- q -= vc->vc_size_row;
- scr_memcpyw((u16 *) q, (u16 *) p,
- vc->vc_size_row);
- }
- softback_in = softback_curr = p;
- update_region(vc, vc->vc_origin,
- logo_lines * vc->vc_cols);
- }
- logo_shown = FBCON_LOGO_CANSHOW;
- }
- fbcon_cursor(vc, CM_ERASE | CM_SOFTBACK);
- fbcon_redraw_softback(vc, disp, lines);
- fbcon_cursor(vc, CM_DRAW | CM_SOFTBACK);
- return 0;
- }
-
- if (!scrollback_phys_max)
- return -ENOSYS;
-
- scrollback_old = scrollback_current;
- scrollback_current -= lines;
- if (scrollback_current < 0)
- scrollback_current = 0;
- else if (scrollback_current > scrollback_max)
- scrollback_current = scrollback_max;
- if (scrollback_current == scrollback_old)
- return 0;
-
- if (fbcon_is_inactive(vc, info))
- return 0;
-
- fbcon_cursor(vc, CM_ERASE);
-
- offset = disp->yscroll - scrollback_current;
- limit = disp->vrows;
- switch (disp->scrollmode) {
- case SCROLL_WRAP_MOVE:
- info->var.vmode |= FB_VMODE_YWRAP;
- break;
- case SCROLL_PAN_MOVE:
- case SCROLL_PAN_REDRAW:
- limit -= vc->vc_rows;
- info->var.vmode &= ~FB_VMODE_YWRAP;
- break;
- }
- if (offset < 0)
- offset += limit;
- else if (offset >= limit)
- offset -= limit;
-
- ops->var.xoffset = 0;
- ops->var.yoffset = offset * vc->vc_font.height;
- ops->update_start(info);
-
- if (!scrollback_current)
- fbcon_cursor(vc, CM_DRAW);
- return 0;
-}
-
static int fbcon_set_origin(struct vc_data *vc)
{
- if (softback_lines)
- fbcon_scrolldelta(vc, softback_lines);
return 0;
}
@@ -2935,8 +2646,6 @@ static void fbcon_modechanged(struct fb_info *info)
fbcon_set_palette(vc, color_table);
update_screen(vc);
- if (softback_buf)
- fbcon_update_softback(vc);
}
}
@@ -3357,7 +3066,6 @@ static const struct consw fb_con = {
.con_font_default = fbcon_set_def_font,
.con_font_copy = fbcon_copy_font,
.con_set_palette = fbcon_set_palette,
- .con_scrolldelta = fbcon_scrolldelta,
.con_set_origin = fbcon_set_origin,
.con_invert_region = fbcon_invert_region,
.con_screen_pos = fbcon_screen_pos,
@@ -3566,9 +3274,6 @@ static void fbcon_exit(void)
if (fbcon_has_exited)
return;
- kfree((void *)softback_buf);
- softback_buf = 0UL;
-
for (i = 0; i < FB_MAX; i++) {
int pending = 0;
diff --git a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
index 7aaa4eabbba0..701eecab3317 100644
--- a/drivers/video/console/fbcon.h
+++ b/drivers/video/console/fbcon.h
@@ -62,7 +62,7 @@ struct fbcon_ops {
void (*clear_margins)(struct vc_data *vc, struct fb_info *info,
int bottom_only);
void (*cursor)(struct vc_data *vc, struct fb_info *info, int mode,
- int softback_lines, int fg, int bg);
+ int fg, int bg);
int (*update_start)(struct fb_info *info);
int (*rotate_font)(struct fb_info *info, struct vc_data *vc);
struct fb_var_screeninfo var; /* copy of the current fb_var_screeninfo */
@@ -151,13 +151,6 @@ static inline int attr_col_ec(int shift, struct vc_data *vc,
#define attr_bgcol_ec(bgshift, vc, info) attr_col_ec(bgshift, vc, info, 0)
#define attr_fgcol_ec(fgshift, vc, info) attr_col_ec(fgshift, vc, info, 1)
-/* Font */
-#define REFCOUNT(fd) (((int *)(fd))[-1])
-#define FNTSIZE(fd) (((int *)(fd))[-2])
-#define FNTCHARCNT(fd) (((int *)(fd))[-3])
-#define FNTSUM(fd) (((int *)(fd))[-4])
-#define FONT_EXTRA_WORDS 4
-
/*
* Scroll Method
*/
diff --git a/drivers/video/console/fbcon_ccw.c b/drivers/video/console/fbcon_ccw.c
index 5a3cbf6dff4d..586702752005 100644
--- a/drivers/video/console/fbcon_ccw.c
+++ b/drivers/video/console/fbcon_ccw.c
@@ -201,7 +201,7 @@ static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info,
region.color = 0;
region.rop = ROP_COPY;
- if (rw && !bottom_only) {
+ if ((int) rw > 0 && !bottom_only) {
region.dx = 0;
region.dy = info->var.yoffset;
region.height = rw;
@@ -209,7 +209,7 @@ static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info,
info->fbops->fb_fillrect(info, &region);
}
- if (bh) {
+ if ((int) bh > 0) {
region.dx = info->var.xoffset + bs;
region.dy = 0;
region.height = info->var.yres_virtual;
@@ -219,7 +219,7 @@ static void ccw_clear_margins(struct vc_data *vc, struct fb_info *info,
}
static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
- int softback_lines, int fg, int bg)
+ int fg, int bg)
{
struct fb_cursor cursor;
struct fbcon_ops *ops = info->fbcon_par;
@@ -236,15 +236,6 @@ static void ccw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
cursor.set = 0;
- if (softback_lines) {
- if (y + softback_lines >= vc->vc_rows) {
- mode = CM_ERASE;
- ops->cursor_flash = 0;
- return;
- } else
- y += softback_lines;
- }
-
c = scr_readw((u16 *) vc->vc_pos);
attribute = get_attribute(info, c);
src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width));
diff --git a/drivers/video/console/fbcon_cw.c b/drivers/video/console/fbcon_cw.c
index e7ee44db4e98..f5a1134049f8 100644
--- a/drivers/video/console/fbcon_cw.c
+++ b/drivers/video/console/fbcon_cw.c
@@ -184,7 +184,7 @@ static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
region.color = 0;
region.rop = ROP_COPY;
- if (rw && !bottom_only) {
+ if ((int) rw > 0 && !bottom_only) {
region.dx = 0;
region.dy = info->var.yoffset + rs;
region.height = rw;
@@ -192,7 +192,7 @@ static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
info->fbops->fb_fillrect(info, &region);
}
- if (bh) {
+ if ((int) bh > 0) {
region.dx = info->var.xoffset;
region.dy = info->var.yoffset;
region.height = info->var.yres;
@@ -202,7 +202,7 @@ static void cw_clear_margins(struct vc_data *vc, struct fb_info *info,
}
static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
- int softback_lines, int fg, int bg)
+ int fg, int bg)
{
struct fb_cursor cursor;
struct fbcon_ops *ops = info->fbcon_par;
@@ -219,15 +219,6 @@ static void cw_cursor(struct vc_data *vc, struct fb_info *info, int mode,
cursor.set = 0;
- if (softback_lines) {
- if (y + softback_lines >= vc->vc_rows) {
- mode = CM_ERASE;
- ops->cursor_flash = 0;
- return;
- } else
- y += softback_lines;
- }
-
c = scr_readw((u16 *) vc->vc_pos);
attribute = get_attribute(info, c);
src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.width));
diff --git a/drivers/video/console/fbcon_rotate.c b/drivers/video/console/fbcon_rotate.c
index db6528f2d3f2..0e3321081945 100644
--- a/drivers/video/console/fbcon_rotate.c
+++ b/drivers/video/console/fbcon_rotate.c
@@ -14,6 +14,7 @@
#include <linux/fb.h>
#include <linux/vt_kern.h>
#include <linux/console.h>
+#include <linux/font.h>
#include <asm/types.h>
#include "fbcon.h"
#include "fbcon_rotate.h"
diff --git a/drivers/video/console/fbcon_ud.c b/drivers/video/console/fbcon_ud.c
index 19e3714abfe8..cf8dac9ca2bb 100644
--- a/drivers/video/console/fbcon_ud.c
+++ b/drivers/video/console/fbcon_ud.c
@@ -231,7 +231,7 @@ static void ud_clear_margins(struct vc_data *vc, struct fb_info *info,
region.color = 0;
region.rop = ROP_COPY;
- if (rw && !bottom_only) {
+ if ((int) rw > 0 && !bottom_only) {
region.dy = 0;
region.dx = info->var.xoffset;
region.width = rw;
@@ -239,7 +239,7 @@ static void ud_clear_margins(struct vc_data *vc, struct fb_info *info,
info->fbops->fb_fillrect(info, &region);
}
- if (bh) {
+ if ((int) bh > 0) {
region.dy = info->var.yoffset;
region.dx = info->var.xoffset;
region.height = bh;
@@ -249,7 +249,7 @@ static void ud_clear_margins(struct vc_data *vc, struct fb_info *info,
}
static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
- int softback_lines, int fg, int bg)
+ int fg, int bg)
{
struct fb_cursor cursor;
struct fbcon_ops *ops = info->fbcon_par;
@@ -267,15 +267,6 @@ static void ud_cursor(struct vc_data *vc, struct fb_info *info, int mode,
cursor.set = 0;
- if (softback_lines) {
- if (y + softback_lines >= vc->vc_rows) {
- mode = CM_ERASE;
- ops->cursor_flash = 0;
- return;
- } else
- y += softback_lines;
- }
-
c = scr_readw((u16 *) vc->vc_pos);
attribute = get_attribute(info, c);
src = ops->fontbuffer + ((c & charmask) * (w * vc->vc_font.height));
diff --git a/drivers/video/console/newport_con.c b/drivers/video/console/newport_con.c
index bb4e96255974..740284a4554c 100644
--- a/drivers/video/console/newport_con.c
+++ b/drivers/video/console/newport_con.c
@@ -31,17 +31,14 @@
#include <linux/linux_logo.h>
#include <linux/font.h>
-#define FONT_DATA ((unsigned char *)font_vga_8x16.data)
+#define NEWPORT_LEN 0x10000
-/* borrowed from fbcon.c */
-#define REFCOUNT(fd) (((int *)(fd))[-1])
-#define FNTSIZE(fd) (((int *)(fd))[-2])
-#define FNTCHARCNT(fd) (((int *)(fd))[-3])
-#define FONT_EXTRA_WORDS 3
+#define FONT_DATA ((unsigned char *)font_vga_8x16.data)
static unsigned char *font_data[MAX_NR_CONSOLES];
static struct newport_regs *npregs;
+static unsigned long newport_addr;
static int logo_active;
static int topscan;
@@ -519,6 +516,7 @@ static int newport_set_font(int unit, struct console_font *op)
FNTSIZE(new_data) = size;
FNTCHARCNT(new_data) = op->charcount;
REFCOUNT(new_data) = 0; /* usage counter */
+ FNTSUM(new_data) = 0;
p = new_data;
for (i = 0; i < op->charcount; i++) {
@@ -743,7 +741,6 @@ const struct consw newport_con = {
static int newport_probe(struct gio_device *dev,
const struct gio_device_id *id)
{
- unsigned long newport_addr;
int err;
if (!dev->resource.start)
@@ -753,7 +750,7 @@ static int newport_probe(struct gio_device *dev,
return -EBUSY; /* we only support one Newport as console */
newport_addr = dev->resource.start + 0xF0000;
- if (!request_mem_region(newport_addr, 0x10000, "Newport"))
+ if (!request_mem_region(newport_addr, NEWPORT_LEN, "Newport"))
return -ENODEV;
npregs = (struct newport_regs *)/* ioremap cannot fail */
@@ -761,6 +758,11 @@ static int newport_probe(struct gio_device *dev,
console_lock();
err = do_take_over_console(&newport_con, 0, MAX_NR_CONSOLES - 1, 1);
console_unlock();
+
+ if (err) {
+ iounmap((void *)npregs);
+ release_mem_region(newport_addr, NEWPORT_LEN);
+ }
return err;
}
@@ -768,6 +770,7 @@ static void newport_remove(struct gio_device *dev)
{
give_up_console(&newport_con);
iounmap((void *)npregs);
+ release_mem_region(newport_addr, NEWPORT_LEN);
}
static struct gio_device_id newport_ids[] = {
diff --git a/drivers/video/console/sticon.c b/drivers/video/console/sticon.c
index 026fd1215933..9f856b417462 100644
--- a/drivers/video/console/sticon.c
+++ b/drivers/video/console/sticon.c
@@ -316,13 +316,13 @@ static unsigned long sticon_getxy(struct vc_data *conp, unsigned long pos,
static u8 sticon_build_attr(struct vc_data *conp, u8 color, u8 intens,
u8 blink, u8 underline, u8 reverse, u8 italic)
{
- u8 attr = ((color & 0x70) >> 1) | ((color & 7));
+ u8 fg = color & 7;
+ u8 bg = (color & 0x70) >> 4;
- if (reverse) {
- color = ((color >> 3) & 0x7) | ((color & 0x7) << 3);
- }
-
- return attr;
+ if (reverse)
+ return (fg << 3) | bg;
+ else
+ return (bg << 3) | fg;
}
static void sticon_invert_region(struct vc_data *conp, u16 *p, int count)
diff --git a/drivers/video/console/tileblit.c b/drivers/video/console/tileblit.c
index 15e8e1a89c45..691717276c3e 100644
--- a/drivers/video/console/tileblit.c
+++ b/drivers/video/console/tileblit.c
@@ -13,6 +13,7 @@
#include <linux/fb.h>
#include <linux/vt_kern.h>
#include <linux/console.h>
+#include <linux/font.h>
#include <asm/types.h>
#include "fbcon.h"
@@ -80,7 +81,7 @@ static void tile_clear_margins(struct vc_data *vc, struct fb_info *info,
}
static void tile_cursor(struct vc_data *vc, struct fb_info *info, int mode,
- int softback_lines, int fg, int bg)
+ int fg, int bg)
{
struct fb_tilecursor cursor;
int use_sw = (vc->vc_cursor_type & 0x10);
diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c
index e5231dd55e6e..da9ae99fc196 100644
--- a/drivers/video/console/vgacon.c
+++ b/drivers/video/console/vgacon.c
@@ -180,155 +180,6 @@ static inline void vga_set_mem_top(struct vc_data *c)
write_vga(12, (c->vc_visible_origin - vga_vram_base) / 2);
}
-#ifdef CONFIG_VGACON_SOFT_SCROLLBACK
-/* software scrollback */
-static void *vgacon_scrollback;
-static int vgacon_scrollback_tail;
-static int vgacon_scrollback_size;
-static int vgacon_scrollback_rows;
-static int vgacon_scrollback_cnt;
-static int vgacon_scrollback_cur;
-static int vgacon_scrollback_save;
-static int vgacon_scrollback_restore;
-
-static void vgacon_scrollback_init(int pitch)
-{
- int rows = CONFIG_VGACON_SOFT_SCROLLBACK_SIZE * 1024/pitch;
-
- if (vgacon_scrollback) {
- vgacon_scrollback_cnt = 0;
- vgacon_scrollback_tail = 0;
- vgacon_scrollback_cur = 0;
- vgacon_scrollback_rows = rows - 1;
- vgacon_scrollback_size = rows * pitch;
- }
-}
-
-static void vgacon_scrollback_startup(void)
-{
- vgacon_scrollback = kcalloc(CONFIG_VGACON_SOFT_SCROLLBACK_SIZE, 1024, GFP_NOWAIT);
- vgacon_scrollback_init(vga_video_num_columns * 2);
-}
-
-static void vgacon_scrollback_update(struct vc_data *c, int t, int count)
-{
- void *p;
-
- if (!vgacon_scrollback_size || c->vc_num != fg_console)
- return;
-
- p = (void *) (c->vc_origin + t * c->vc_size_row);
-
- while (count--) {
- scr_memcpyw(vgacon_scrollback + vgacon_scrollback_tail,
- p, c->vc_size_row);
- vgacon_scrollback_cnt++;
- p += c->vc_size_row;
- vgacon_scrollback_tail += c->vc_size_row;
-
- if (vgacon_scrollback_tail >= vgacon_scrollback_size)
- vgacon_scrollback_tail = 0;
-
- if (vgacon_scrollback_cnt > vgacon_scrollback_rows)
- vgacon_scrollback_cnt = vgacon_scrollback_rows;
-
- vgacon_scrollback_cur = vgacon_scrollback_cnt;
- }
-}
-
-static void vgacon_restore_screen(struct vc_data *c)
-{
- vgacon_scrollback_save = 0;
-
- if (!vga_is_gfx && !vgacon_scrollback_restore) {
- scr_memcpyw((u16 *) c->vc_origin, (u16 *) c->vc_screenbuf,
- c->vc_screenbuf_size > vga_vram_size ?
- vga_vram_size : c->vc_screenbuf_size);
- vgacon_scrollback_restore = 1;
- vgacon_scrollback_cur = vgacon_scrollback_cnt;
- }
-}
-
-static int vgacon_scrolldelta(struct vc_data *c, int lines)
-{
- int start, end, count, soff;
-
- if (!lines) {
- c->vc_visible_origin = c->vc_origin;
- vga_set_mem_top(c);
- return 1;
- }
-
- if (!vgacon_scrollback)
- return 1;
-
- if (!vgacon_scrollback_save) {
- vgacon_cursor(c, CM_ERASE);
- vgacon_save_screen(c);
- vgacon_scrollback_save = 1;
- }
-
- vgacon_scrollback_restore = 0;
- start = vgacon_scrollback_cur + lines;
- end = start + abs(lines);
-
- if (start < 0)
- start = 0;
-
- if (start > vgacon_scrollback_cnt)
- start = vgacon_scrollback_cnt;
-
- if (end < 0)
- end = 0;
-
- if (end > vgacon_scrollback_cnt)
- end = vgacon_scrollback_cnt;
-
- vgacon_scrollback_cur = start;
- count = end - start;
- soff = vgacon_scrollback_tail - ((vgacon_scrollback_cnt - end) *
- c->vc_size_row);
- soff -= count * c->vc_size_row;
-
- if (soff < 0)
- soff += vgacon_scrollback_size;
-
- count = vgacon_scrollback_cnt - start;
-
- if (count > c->vc_rows)
- count = c->vc_rows;
-
- if (count) {
- int copysize;
-
- int diff = c->vc_rows - count;
- void *d = (void *) c->vc_origin;
- void *s = (void *) c->vc_screenbuf;
-
- count *= c->vc_size_row;
- /* how much memory to end of buffer left? */
- copysize = min(count, vgacon_scrollback_size - soff);
- scr_memcpyw(d, vgacon_scrollback + soff, copysize);
- d += copysize;
- count -= copysize;
-
- if (count) {
- scr_memcpyw(d, vgacon_scrollback, count);
- d += count;
- }
-
- if (diff)
- scr_memcpyw(d, s, diff * c->vc_size_row);
- } else
- vgacon_cursor(c, CM_MOVE);
-
- return 1;
-}
-#else
-#define vgacon_scrollback_startup(...) do { } while (0)
-#define vgacon_scrollback_init(...) do { } while (0)
-#define vgacon_scrollback_update(...) do { } while (0)
-
static void vgacon_restore_screen(struct vc_data *c)
{
if (c->vc_origin != c->vc_visible_origin)
@@ -365,7 +216,6 @@ static int vgacon_scrolldelta(struct vc_data *c, int lines)
vga_set_mem_top(c);
return 1;
}
-#endif /* CONFIG_VGACON_SOFT_SCROLLBACK */
static const char *vgacon_startup(void)
{
@@ -562,10 +412,7 @@ static const char *vgacon_startup(void)
vgacon_xres = screen_info.orig_video_cols * VGA_FONTWIDTH;
vgacon_yres = vga_scan_lines;
- if (!vga_init_done) {
- vgacon_scrollback_startup();
- vga_init_done = 1;
- }
+ vga_init_done = 1;
return display_desc;
}
@@ -575,11 +422,17 @@ static void vgacon_init(struct vc_data *c, int init)
struct uni_pagedir *p;
/*
- * We cannot be loaded as a module, therefore init is always 1,
- * but vgacon_init can be called more than once, and init will
- * not be 1.
+ * We cannot be loaded as a module, therefore init will be 1
+ * if we are the default console, however if we are a fallback
+ * console, for example if fbcon has failed registration, then
+ * init will be 0, so we need to make sure our boot parameters
+ * have been copied to the console structure for vgacon_resize
+ * ultimately called by vc_resize. Any subsequent calls to
+ * vgacon_init init will have init set to 0 too.
*/
c->vc_can_do_color = vga_can_do_color;
+ c->vc_scan_lines = vga_scan_lines;
+ c->vc_font.height = c->vc_cell_height = vga_video_font_height;
/* set dimensions manually if init != 0 since vc_resize() will fail */
if (init) {
@@ -588,8 +441,6 @@ static void vgacon_init(struct vc_data *c, int init)
} else
vc_resize(c, vga_video_num_columns, vga_video_num_lines);
- c->vc_scan_lines = vga_scan_lines;
- c->vc_font.height = vga_video_font_height;
c->vc_complement_mask = 0x7700;
if (vga_512_chars)
c->vc_hi_font_mask = 0x0800;
@@ -727,32 +578,32 @@ static void vgacon_cursor(struct vc_data *c, int mode)
switch (c->vc_cursor_type & 0x0f) {
case CUR_UNDERLINE:
vgacon_set_cursor_size(c->vc_x,
- c->vc_font.height -
- (c->vc_font.height <
+ c->vc_cell_height -
+ (c->vc_cell_height <
10 ? 2 : 3),
- c->vc_font.height -
- (c->vc_font.height <
+ c->vc_cell_height -
+ (c->vc_cell_height <
10 ? 1 : 2));
break;
case CUR_TWO_THIRDS:
vgacon_set_cursor_size(c->vc_x,
- c->vc_font.height / 3,
- c->vc_font.height -
- (c->vc_font.height <
+ c->vc_cell_height / 3,
+ c->vc_cell_height -
+ (c->vc_cell_height <
10 ? 1 : 2));
break;
case CUR_LOWER_THIRD:
vgacon_set_cursor_size(c->vc_x,
- (c->vc_font.height * 2) / 3,
- c->vc_font.height -
- (c->vc_font.height <
+ (c->vc_cell_height * 2) / 3,
+ c->vc_cell_height -
+ (c->vc_cell_height <
10 ? 1 : 2));
break;
case CUR_LOWER_HALF:
vgacon_set_cursor_size(c->vc_x,
- c->vc_font.height / 2,
- c->vc_font.height -
- (c->vc_font.height <
+ c->vc_cell_height / 2,
+ c->vc_cell_height -
+ (c->vc_cell_height <
10 ? 1 : 2));
break;
case CUR_NONE:
@@ -763,7 +614,7 @@ static void vgacon_cursor(struct vc_data *c, int mode)
break;
default:
vgacon_set_cursor_size(c->vc_x, 1,
- c->vc_font.height);
+ c->vc_cell_height);
break;
}
break;
@@ -774,13 +625,13 @@ static int vgacon_doresize(struct vc_data *c,
unsigned int width, unsigned int height)
{
unsigned long flags;
- unsigned int scanlines = height * c->vc_font.height;
+ unsigned int scanlines = height * c->vc_cell_height;
u8 scanlines_lo = 0, r7 = 0, vsync_end = 0, mode, max_scan;
raw_spin_lock_irqsave(&vga_lock, flags);
vgacon_xres = width * VGA_FONTWIDTH;
- vgacon_yres = height * c->vc_font.height;
+ vgacon_yres = height * c->vc_cell_height;
if (vga_video_type >= VIDEO_TYPE_VGAC) {
outb_p(VGA_CRTC_MAX_SCAN, vga_video_port_reg);
max_scan = inb_p(vga_video_port_val);
@@ -835,9 +686,9 @@ static int vgacon_doresize(struct vc_data *c,
static int vgacon_switch(struct vc_data *c)
{
int x = c->vc_cols * VGA_FONTWIDTH;
- int y = c->vc_rows * c->vc_font.height;
+ int y = c->vc_rows * c->vc_cell_height;
int rows = screen_info.orig_video_lines * vga_default_font_height/
- c->vc_font.height;
+ c->vc_cell_height;
/*
* We need to save screen size here as it's the only way
* we can spot the screen has been resized and we need to
@@ -861,7 +712,6 @@ static int vgacon_switch(struct vc_data *c)
vgacon_doresize(c, c->vc_cols, c->vc_rows);
}
- vgacon_scrollback_init(c->vc_size_row);
return 0; /* Redrawing not needed */
}
@@ -1279,7 +1129,7 @@ static int vgacon_adjust_height(struct vc_data *vc, unsigned fontheight)
cursor_size_lastto = 0;
c->vc_sw->con_cursor(c, CM_DRAW);
}
- c->vc_font.height = fontheight;
+ c->vc_font.height = c->vc_cell_height = fontheight;
vc_resize(c, 0, rows); /* Adjust console size */
}
}
@@ -1333,12 +1183,20 @@ static int vgacon_resize(struct vc_data *c, unsigned int width,
if ((width << 1) * height > vga_vram_size)
return -EINVAL;
+ if (user) {
+ /*
+ * Ho ho! Someone (svgatextmode, eh?) may have reprogrammed
+ * the video mode! Set the new defaults then and go away.
+ */
+ screen_info.orig_video_cols = width;
+ screen_info.orig_video_lines = height;
+ vga_default_font_height = c->vc_cell_height;
+ return 0;
+ }
if (width % 2 || width > screen_info.orig_video_cols ||
height > (screen_info.orig_video_lines * vga_default_font_height)/
- c->vc_font.height)
- /* let svgatextmode tinker with video timings and
- return success */
- return (user) ? 0 : -EINVAL;
+ c->vc_cell_height)
+ return -EINVAL;
if (CON_IS_VISIBLE(c) && !vga_is_gfx) /* who knows */
vgacon_doresize(c, width, height);
@@ -1394,7 +1252,6 @@ static int vgacon_scroll(struct vc_data *c, int t, int b, int dir,
oldo = c->vc_origin;
delta = lines * c->vc_size_row;
if (dir == SM_UP) {
- vgacon_scrollback_update(c, t, lines);
if (c->vc_scr_end + delta >= vga_vram_end) {
scr_memcpyw((u16 *) vga_vram_base,
(u16 *) (oldo + delta),
generated by cgit v1.2.3 (git 2.25.1) at 2025-10-22 17:08:36 +0000