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Index: include/video/davincifb.h
===================================================================
--- include/video/davincifb.h (revision 765)
+++ include/video/davincifb.h (working copy)
@@ -40,6 +40,21 @@
u_int32_t zoom_v;
} zoom_params_t;
+
+typedef struct fb_set_start {
+ int offset; /* offset from smem_start */
+ unsigned long physical; /* absolute physical address when offset < 0 */
+
+ u_int64_t sync; /* input: target sync counter for change or 0 for no sync at all,
+ output: sync counter of actual change or 0 if still pending */
+} fb_set_start_t;
+
+
+#ifdef _IOC_TYPECHECK
+#undef _IOC_TYPECHECK
+#define _IOC_TYPECHECK(x) (sizeof(x))
+#endif
+
#define RAM_CLUT_SIZE 256*3
#define FBIO_ENABLE_DISABLE_WIN \
_IOW('F', 0x30, unsigned char)
@@ -83,6 +98,8 @@
_IOW('F', 0x49, u_int32_t)
#define FBIO_SET_CURSOR \
_IOW('F', 0x50, struct fb_cursor)
+#define FBIO_SET_START \
+ _IOW('F', 0x66, struct fb_set_start)
/*
* Defines and Constants
Index: drivers/video/davincifb.c
===================================================================
--- drivers/video/davincifb.c (revision 765)
+++ drivers/video/davincifb.c (working copy)
@@ -1095,6 +1095,58 @@
return 0;
}
+static int
+davincifb_set_start( struct fb_set_start *set, struct fb_info *info )
+{
+ struct vpbe_dm_win_info *win = (struct vpbe_dm_win_info *) info->par;
+ unsigned long start = 0;
+
+ /* Physical mode (absolute address)? */
+ if (set->offset < 0) {
+ start = set->physical;
+
+ /* FIXME: address checks */
+ }
+ else {
+ /* Offset mode (from frame buffer device base). */
+ if (set->offset + info->var.yres * info->fix.line_length >= win->fb_size)
+ return -EFAULT;
+
+ start = win->fb_base_phys + set->offset;
+ }
+
+ /* Set on explicit sync count? */
+ if (set->sync > 1) {
+ if (set->sync <= dm->vsync_cnt) {
+ set_sdram_params( info->fix.id, start, info->fix.line_length );
+ win->sdram_address = start;
+
+ set->sync = dm->vsync_cnt;
+ }
+ else {
+ /* FIXME: No queue yet. */
+ win->sdram_address = start;
+
+ set->sync = 0;
+ }
+ }
+ /* Set on next sync? */
+ else if (set->sync) {
+ win->sdram_address = start;
+
+ set->sync = 0;
+ }
+ /* Set now! */
+ else {
+ set_sdram_params( info->fix.id, start, info->fix.line_length );
+ win->sdram_address = start;
+
+ set->sync = dm->vsync_cnt;
+ }
+
+ return 0;
+}
+
/*
* davincifb_ioctl - handler for private ioctls.
*/
@@ -1105,6 +1157,7 @@
struct vpbe_dm_win_info *w = (struct vpbe_dm_win_info *)info->par;
void __user *argp = (void __user *)arg;
struct fb_fillrect rect;
+ struct fb_set_start set_start;
zoom_params_t zoom;
int retval = 0;
long std = 0;
@@ -1414,6 +1467,16 @@
return -EINVAL;
break;
+ case FBIO_SET_START:
+ if (copy_from_user(&set_start, argp, sizeof(set_start)))
+ return -EFAULT;
+ retval = davincifb_set_start( &set_start, &w->info );
+ if (retval)
+ return retval;
+ if (copy_to_user(argp, &set_start, sizeof(set_start)))
+ return -EFAULT;
+ break;
+
default:
retval = -EINVAL;
break;
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