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[PATCH] au1100fb: Add option to enable/disable the cursor 

- add cursor enable/disable, very useful if you wish a full screen boot
  logo.

Cursor can be disabled from kernel command line:

   video=au1100fb:nocursor,panel:Toppoly_TD035STED4

or from sysfs interface:

   echo 1 > /sys/module/au1100fb/parameters/nocursor

- fix up some wrong indentation issues.

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Antonino Daplas <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Rodolfo Giometti 2006-10-03 01:14:36 -07:00 committed by Linus Torvalds
parent 53a04c6fb2
commit ca27ac4cc6
1 changed files with 26 additions and 4 deletions
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30
drivers/video/au1100fb.c
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@ -8,6 +8,7 @@
* <c.pellegrin@exadron.com>
*
* PM support added by Rodolfo Giometti <giometti@linux.it>
* Cursor enable/disable by Rodolfo Giometti <giometti@linux.it>
*
* Copyright 2002 MontaVista Software
* Author: MontaVista Software, Inc.
@ -110,6 +111,10 @@ static struct fb_var_screeninfo au1100fb_var __initdata = {
static struct au1100fb_drv_info drv_info;
static int nocursor = 0;
module_param(nocursor, int, 0644);
MODULE_PARM_DESC(nocursor, "cursor enable/disable");
/*
* Set hardware with var settings. This will enable the controller with a specific
* mode, normally validated with the fb_check_var method
@ -422,6 +427,17 @@ int au1100fb_fb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
return 0;
}
/* fb_cursor
* Used to disable cursor drawing...
*/
int au1100fb_fb_cursor(struct fb_info *info, struct fb_cursor *cursor)
{
if (nocursor)
return 0;
else
return -EINVAL; /* just to force soft_cursor() call */
}
static struct fb_ops au1100fb_ops =
{
.owner = THIS_MODULE,
@ -433,6 +449,7 @@ static struct fb_ops au1100fb_ops =
.fb_imageblit = cfb_imageblit,
.fb_rotate = au1100fb_fb_rotate,
.fb_mmap = au1100fb_fb_mmap,
.fb_cursor = au1100fb_fb_cursor,
};
@ -677,7 +694,7 @@ int au1100fb_setup(char *options)
if (options) {
while ((this_opt = strsep(&options,",")) != NULL) {
/* Panel option */
if (!strncmp(this_opt, "panel:", 6)) {
if (!strncmp(this_opt, "panel:", 6)) {
int i;
this_opt += 6;
for (i = 0; i < num_panels; i++) {
@ -685,13 +702,18 @@ int au1100fb_setup(char *options)
known_lcd_panels[i].name,
strlen(this_opt))) {
panel_idx = i;
break;
break;
}
}
}
if (i >= num_panels) {
print_warn("Panel %s not supported!", this_opt);
}
}
if (!strncmp(this_opt, "nocursor", 8)) {
this_opt += 8;
nocursor = 1;
print_info("Cursor disabled");
}
/* Mode option (only option that start with digit) */
else if (isdigit(this_opt[0])) {
mode = kmalloc(strlen(this_opt) + 1, GFP_KERNEL);
@ -700,7 +722,7 @@ int au1100fb_setup(char *options)
/* Unsupported option */
else {
print_warn("Unsupported option \"%s\"", this_opt);
}
}
}
}