The G2D headers define a number of modes through enums
(like e.g. color, select, repeat, etc.).
This introduces g2d_validate_select_mode() and
g2d_validate_blending_op() which validate a
select mode or blending operation respectively.
Signed-off-by: Tobias Jakobi <tjakobi@xxxxxxxxxxxxxxxxxxxxx>
---
exynos/exynos_fimg2d.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/exynos/exynos_fimg2d.c b/exynos/exynos_fimg2d.c
index 2e04f4a..781aff5 100644
--- a/exynos/exynos_fimg2d.c
+++ b/exynos/exynos_fimg2d.c
@@ -119,6 +119,50 @@ static unsigned int g2d_check_space(const struct g2d_context *ctx,
}
/*
+ * g2d_validate_select_mode - validate select mode.
+ *
+ * @mode: the mode to validate
+ */
+static unsigned int g2d_validate_select_mode(
+ enum e_g2d_select_mode mode)
+{
+ switch (mode) {
+ case G2D_SELECT_MODE_NORMAL:
+ case G2D_SELECT_MODE_FGCOLOR:
+ case G2D_SELECT_MODE_BGCOLOR:
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
+ * g2d_validate_blending_op - validate blending operation.
+ *
+ * @operation: the operation to validate
+ */
+static unsigned int g2d_validate_blending_op(
+ enum e_g2d_op operation)
+{
+ switch (operation) {
+ case G2D_OP_CLEAR:
+ case G2D_OP_SRC:
+ case G2D_OP_DST:
+ case G2D_OP_OVER:
+ case G2D_OP_INTERPOLATE:
+ case G2D_OP_DISJOINT_CLEAR:
+ case G2D_OP_DISJOINT_SRC:
+ case G2D_OP_DISJOINT_DST:
+ case G2D_OP_CONJOINT_CLEAR:
+ case G2D_OP_CONJOINT_SRC:
+ case G2D_OP_CONJOINT_DST:
+ return 0;
+ }
+
+ return 1;
+}
+
+/*
* g2d_add_cmd - set given command and value to user side command buffer.
*
* @ctx: a pointer to g2d_context structure.
--
2.0.5
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