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[Linux-fbdev-devel] [PATCH 4/8] fbcon: Disable fbcon cursor if vt softcursor is enabled
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From: Antonino A. D. <ad...@ho...> - 2004-11-11 02:25:00
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Problem reported by Gerd Knorr:
(1) boot with vesafb (thats what I'm using, maybe it shows on other
framebuffers and/or vgacon as well).
(2) login into one terminal, then type "echo -ne '\033[?17;15;239c'".
You should have a nice, yellow and *not* blinking cursor block.
That is what I have in my .profile because I can't stand the
blinking cursors.
(3) Switch to another terminal. The cursor goes into blinking
underscore mode now (i.e. the default cursor).
(4) Switch back to the first terminal. Now you have a yellow block
with the last two pixel lines (i.e. the underscore) blinking.
This bug is caused by both fbcon_cursor and vt softcursor being active at
the same time.
Fix:
- Disable fbcon_cursor if vt softcursor is active
(vc->vc_cursor_type & 0x10) != 0.
- Recheck/reload fbcon cursor for each vt switch
Signed-off-by: Antonino Daplas <ad...@po...>
---
bitblit.c | 33 +++++++++++++++++++++------------
fbcon.c | 3 +++
fbcon.h | 1 +
tileblit.c | 3 ++-
4 files changed, 27 insertions(+), 13 deletions(-)
diff -Nru a/drivers/video/console/bitblit.c b/drivers/video/console/bitblit.c
--- a/drivers/video/console/bitblit.c 2004-10-23 02:52:37 +08:00
+++ b/drivers/video/console/bitblit.c 2004-11-09 10:36:30 +08:00
@@ -243,7 +243,7 @@
unsigned short charmask = vc->vc_hi_font_mask ? 0x1ff : 0xff;
int w = (vc->vc_font.width + 7) >> 3, c;
int y = real_y(p, vc->vc_y);
- int attribute;
+ int attribute, use_sw = (vc->vc_cursor_type & 0x10);
char *src;
cursor.set = 0;
@@ -252,7 +252,8 @@
attribute = get_attribute(info, c);
src = vc->vc_font.data + ((c & charmask) * (w * vc->vc_font.height));
- if (ops->cursor_state.image.data != src) {
+ if (ops->cursor_state.image.data != src ||
+ ops->cursor_reset) {
ops->cursor_state.image.data = src;
cursor.set |= FB_CUR_SETIMAGE;
}
@@ -271,34 +272,39 @@
}
if (ops->cursor_state.image.fg_color != fg ||
- ops->cursor_state.image.bg_color != bg) {
+ ops->cursor_state.image.bg_color != bg ||
+ ops->cursor_reset) {
ops->cursor_state.image.fg_color = fg;
ops->cursor_state.image.bg_color = bg;
cursor.set |= FB_CUR_SETCMAP;
}
if ((ops->cursor_state.image.dx != (vc->vc_font.width * vc->vc_x)) ||
- (ops->cursor_state.image.dy != (vc->vc_font.height * y))) {
+ (ops->cursor_state.image.dy != (vc->vc_font.height * y)) ||
+ ops->cursor_reset) {
ops->cursor_state.image.dx = vc->vc_font.width * vc->vc_x;
ops->cursor_state.image.dy = vc->vc_font.height * y;
cursor.set |= FB_CUR_SETPOS;
}
if (ops->cursor_state.image.height != vc->vc_font.height ||
- ops->cursor_state.image.width != vc->vc_font.width) {
+ ops->cursor_state.image.width != vc->vc_font.width ||
+ ops->cursor_reset) {
ops->cursor_state.image.height = vc->vc_font.height;
ops->cursor_state.image.width = vc->vc_font.width;
cursor.set |= FB_CUR_SETSIZE;
}
- if (ops->cursor_state.hot.x || ops->cursor_state.hot.y) {
+ if (ops->cursor_state.hot.x || ops->cursor_state.hot.y ||
+ ops->cursor_reset) {
ops->cursor_state.hot.x = cursor.hot.y = 0;
cursor.set |= FB_CUR_SETHOT;
}
- if ((cursor.set & FB_CUR_SETSIZE) ||
- ((vc->vc_cursor_type & 0x0f) != p->cursor_shape)
- || ops->cursor_state.mask == NULL) {
+ if (cursor.set & FB_CUR_SETSIZE ||
+ vc->vc_cursor_type != p->cursor_shape ||
+ ops->cursor_state.mask == NULL ||
+ ops->cursor_reset) {
char *mask = kmalloc(w*vc->vc_font.height, GFP_ATOMIC);
int cur_height, size, i = 0;
u8 msk = 0xff;
@@ -309,10 +315,11 @@
if (ops->cursor_state.mask)
kfree(ops->cursor_state.mask);
ops->cursor_state.mask = mask;
- p->cursor_shape = vc->vc_cursor_type & 0x0f;
+
+ p->cursor_shape = vc->vc_cursor_type;
cursor.set |= FB_CUR_SETSHAPE;
- switch (vc->vc_cursor_type & 0x0f) {
+ switch (p->cursor_shape & CUR_HWMASK) {
case CUR_NONE:
cur_height = 0;
break;
@@ -348,7 +355,7 @@
case CM_DRAW:
case CM_MOVE:
default:
- ops->cursor_state.enable = 1;
+ ops->cursor_state.enable = (use_sw) ? 0 : 1;
break;
}
@@ -367,6 +374,8 @@
cursor.rop = ROP_XOR;
info->fbops->fb_cursor(info, &cursor);
+
+ ops->cursor_reset = 0;
}
void fbcon_set_bitops(struct fbcon_ops *ops)
diff -Nru a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
--- a/drivers/video/console/fbcon.c 2004-11-08 09:32:38 +08:00
+++ b/drivers/video/console/fbcon.c 2004-11-09 10:36:31 +08:00
@@ -1889,6 +1889,7 @@
int i, prev_console, do_set_par = 0;
info = registered_fb[con2fb_map[vc->vc_num]];
+
if (softback_top) {
int l = fbcon_softback_size / vc->vc_size_row;
if (softback_lines)
@@ -1904,6 +1905,7 @@
softback_top = 0;
}
}
+
if (logo_shown >= 0) {
struct vc_data *conp2 = vc_cons[logo_shown].d;
@@ -1953,6 +1955,7 @@
}
set_blitting_type(vc, info, p);
+ ((struct fbcon_ops *)info->fbcon_par)->cursor_reset = 1;
vc->vc_can_do_color = (fb_get_color_depth(info) != 1);
vc->vc_complement_mask = vc->vc_can_do_color ? 0x7700 : 0x0800;
diff -Nru a/drivers/video/console/fbcon.h b/drivers/video/console/fbcon.h
--- a/drivers/video/console/fbcon.h 2004-11-06 06:21:26 +08:00
+++ b/drivers/video/console/fbcon.h 2004-11-09 10:36:31 +08:00
@@ -65,6 +65,7 @@
struct fb_cursor cursor_state;
int currcon; /* Current VC. */
int cursor_flash;
+ int cursor_reset;
char *cursor_data;
};
/*
diff -Nru a/drivers/video/console/tileblit.c b/drivers/video/console/tileblit.c
--- a/drivers/video/console/tileblit.c 2004-10-19 20:23:16 +08:00
+++ b/drivers/video/console/tileblit.c 2004-11-09 16:29:13 +08:00
@@ -84,10 +84,11 @@
struct display *p, int mode, int fg, int bg)
{
struct fb_tilecursor cursor;
+ int use_sw = (vc->vc_cursor_type & 0x01);
cursor.sx = vc->vc_x;
cursor.sy = vc->vc_y;
- cursor.mode = (mode == CM_ERASE) ? 0 : 1;
+ cursor.mode = (mode == CM_ERASE || use_sw) ? 0 : 1;
cursor.fg = fg;
cursor.bg = bg;
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