From f17d04fbbb201c05700359e94e2747c210f99852 Mon Sep 17 00:00:00 2001 From: Tomi Valkeinen Date: Thu, 17 Nov 2011 14:31:09 +0200 Subject: OMAPDSS: APPLY: add dss_mgr_simple_check() Add dss_mgr_simple_check() which is used to check the validity of certain manager attributes. Only attributes that can be checked independently, without knowing the display being used, is done here (thus "simple"). We can use this function in dss_mgr_set_info(). Signed-off-by: Tomi Valkeinen --- drivers/video/omap2/dss/apply.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/video/omap2/dss/apply.c b/drivers/video/omap2/dss/apply.c index dccddd264436..242cb1c983c0 100644 --- a/drivers/video/omap2/dss/apply.c +++ b/drivers/video/omap2/dss/apply.c @@ -834,11 +834,35 @@ out: mutex_unlock(&apply_lock); } +static int dss_mgr_simple_check(struct omap_overlay_manager *mgr, + const struct omap_overlay_manager_info *info) +{ + if (dss_has_feature(FEAT_ALPHA_FIXED_ZORDER)) { + /* + * OMAP3 supports only graphics source transparency color key + * and alpha blending simultaneously. See TRM 15.4.2.4.2.2 + * Alpha Mode. + */ + if (info->partial_alpha_enabled && info->trans_enabled + && info->trans_key_type != OMAP_DSS_COLOR_KEY_GFX_DST) { + DSSERR("check_manager: illegal transparency key\n"); + return -EINVAL; + } + } + + return 0; +} + int dss_mgr_set_info(struct omap_overlay_manager *mgr, struct omap_overlay_manager_info *info) { struct mgr_priv_data *mp = get_mgr_priv(mgr); unsigned long flags; + int r; + + r = dss_mgr_simple_check(mgr, info); + if (r) + return r; spin_lock_irqsave(&data_lock, flags); -- cgit v1.2.1