[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>

1 files changed, 26 insertions, 4 deletions

diff --git a/drivers/video/au1100fb.c b/drivers/video/au1100fb.c
index f25d5d648333..ef5c16f7f5a6 100644
--- a/drivers/video/au1100fb.c
+++ b/drivers/video/au1100fb.c
@@ -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);
-                }
+                        }
                 }
         }