diff options
Diffstat (limited to 'drivers/video/omap2')
| -rw-r--r-- | drivers/video/omap2/dss/apply.c | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c index 4cc7c37acbb4..dccddd264436 100644 --- a/drivers/video/omap2/dss/apply.c +++ b/drivers/video/omap2/dss/apply.c @@ -928,12 +928,52 @@ err: } +static int dss_ovl_simple_check(struct omap_overlay *ovl, + const struct omap_overlay_info *info) +{ + if (info->paddr == 0) { + DSSERR("check_overlay: paddr cannot be 0\n"); + return -EINVAL; + } + + if ((ovl->caps & OMAP_DSS_OVL_CAP_SCALE) == 0) { + if (info->out_width != 0 && info->width != info->out_width) { + DSSERR("check_overlay: overlay %d doesn't support " + "scaling\n", ovl->id); + return -EINVAL; + } + + if (info->out_height != 0 && info->height != info->out_height) { + DSSERR("check_overlay: overlay %d doesn't support " + "scaling\n", ovl->id); + return -EINVAL; + } + } + + if ((ovl->supported_modes & info->color_mode) == 0) { + DSSERR("check_overlay: overlay %d doesn't support mode %d\n", + ovl->id, info->color_mode); + return -EINVAL; + } + + if (info->zorder >= omap_dss_get_num_overlays()) { + DSSERR("check_overlay: zorder %d too high\n", info->zorder); + return -EINVAL; + } + + return 0; +} int dss_ovl_set_info(struct omap_overlay *ovl, struct omap_overlay_info *info) { struct ovl_priv_data *op = get_ovl_priv(ovl); unsigned long flags; + int r; + + r = dss_ovl_simple_check(ovl, info); + if (r) + return r; spin_lock_irqsave(&data_lock, flags); |