Gitweb:     
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=acba9cd01974353294ecd0c750581a6707d1ebe1
Commit:     acba9cd01974353294ecd0c750581a6707d1ebe1
Parent:     01b15bd4bfae794246c047b961a282e19014e240
Author:     Antonino A. Daplas <[EMAIL PROTECTED]>
AuthorDate: Tue Jul 17 04:05:26 2007 -0700
Committer:  Linus Torvalds <[EMAIL PROTECTED]>
CommitDate: Tue Jul 17 10:23:11 2007 -0700

    fbcon: cursor blink control
    
    Add sysfs attribute to enable or disable cursor blinking.  This will also
    disable cursor blinking if the VT layer's softcursor is active.  These 
changes
    are required to enable some machines to enter low-power states properly.
    
    Signed-off-by: Antonino Daplas <[EMAIL PROTECTED]>
    Signed-off-by: Andrew Morton <[EMAIL PROTECTED]>
    Signed-off-by: Linus Torvalds <[EMAIL PROTECTED]>
---
 drivers/video/console/fbcon.c |   74 ++++++++++++++++++++++++++++++++++++++++-
 1 files changed, 73 insertions(+), 1 deletions(-)

diff --git a/drivers/video/console/fbcon.c b/drivers/video/console/fbcon.c
index 7888e31..b7e143e 100644
--- a/drivers/video/console/fbcon.c
+++ b/drivers/video/console/fbcon.c
@@ -152,6 +152,7 @@ static int fbcon_set_origin(struct vc_data *);
 #define DEFAULT_CURSOR_BLINK_RATE      (20)
 
 static int vbl_cursor_cnt;
+static int fbcon_cursor_noblink;
 
 #define divides(a, b)  ((!(a) || (b)%(a)) ? 0 : 1)
 
@@ -441,7 +442,8 @@ static void fbcon_add_cursor_timer(struct fb_info *info)
        struct fbcon_ops *ops = info->fbcon_par;
 
        if ((!info->queue.func || info->queue.func == fb_flashcursor) &&
-           !(ops->flags & FBCON_FLAGS_CURSOR_TIMER)) {
+           !(ops->flags & FBCON_FLAGS_CURSOR_TIMER) &&
+           !fbcon_cursor_noblink) {
                if (!info->queue.func)
                        INIT_WORK(&info->queue, fb_flashcursor);
 
@@ -1349,6 +1351,11 @@ static void fbcon_cursor(struct vc_data *vc, int mode)
        if (fbcon_is_inactive(vc, info) || vc->vc_deccm != 1)
                return;
 
+       if (vc->vc_cursor_type & 0x10)
+               fbcon_del_cursor_timer(info);
+       else
+               fbcon_add_cursor_timer(info);
+
        ops->cursor_flash = (mode == CM_ERASE) ? 0 : 1;
        if (mode & CM_SOFTBACK) {
                mode &= ~CM_SOFTBACK;
@@ -3308,9 +3315,74 @@ err:
        return snprintf(buf, PAGE_SIZE, "%d\n", rotate);
 }
 
+static ssize_t show_cursor_blink(struct class_device *class_device, char *buf)
+{
+       struct fb_info *info;
+       struct fbcon_ops *ops;
+       int idx, blink = -1;
+
+       if (fbcon_has_exited)
+               return 0;
+
+       acquire_console_sem();
+       idx = con2fb_map[fg_console];
+
+       if (idx == -1 || registered_fb[idx] == NULL)
+               goto err;
+
+       info = registered_fb[idx];
+       ops = info->fbcon_par;
+
+       if (!ops)
+               goto err;
+
+       blink = (ops->flags & FBCON_FLAGS_CURSOR_TIMER) ? 1 : 0;
+err:
+       release_console_sem();
+       return snprintf(buf, PAGE_SIZE, "%d\n", blink);
+}
+
+static ssize_t store_cursor_blink(struct class_device *clas_device,
+                                 const char *buf, size_t count)
+{
+       struct fb_info *info;
+       int blink, idx;
+       char **last = NULL;
+
+       if (fbcon_has_exited)
+               return count;
+
+       acquire_console_sem();
+       idx = con2fb_map[fg_console];
+
+       if (idx == -1 || registered_fb[idx] == NULL)
+               goto err;
+
+       info = registered_fb[idx];
+
+       if (!info->fbcon_par)
+               goto err;
+
+       blink = simple_strtoul(buf, last, 0);
+
+       if (blink) {
+               fbcon_cursor_noblink = 0;
+               fbcon_add_cursor_timer(info);
+       } else {
+               fbcon_cursor_noblink = 1;
+               fbcon_del_cursor_timer(info);
+       }
+
+err:
+       release_console_sem();
+       return count;
+}
+
 static struct class_device_attribute class_device_attrs[] = {
        __ATTR(rotate, S_IRUGO|S_IWUSR, show_rotate, store_rotate),
        __ATTR(rotate_all, S_IWUSR, NULL, store_rotate_all),
+       __ATTR(cursor_blink, S_IRUGO|S_IWUSR, show_cursor_blink,
+              store_cursor_blink),
 };
 
 static int fbcon_init_class_device(void)
-
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