diff options
| author | Tobias Jakobi <tjakobi@math.uni-bielefeld.de> | 2015-11-30 12:12:18 +0900 |
|---|---|---|
| committer | Emil Velikov <emil.l.velikov@gmail.com> | 2015-12-18 17:42:54 +0000 |
| commit | 51fd93bc38a33df33f7bf6cbf1ae3fbf74a47dba (patch) | |
| tree | a89863df9ec751ed09695a77ff164b2da1043c42 /exynos | |
| parent | 1b32e5da44f4c1e24a60c6bad1fa8766cf36be39 (diff) | |
exynos: fimg2d: add g2d_set_direction
This allows setting the two direction registers, which specify how
the engine blits pixels. This can be used for overlapping blits,
which happen e.g. when 'moving' a rectangular region inside a
fixed buffer.
Reviewed-by: Hyungwon Hwang <human.hwang@samsung.com>
Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Hyungwon Hwang <human.hwang@samsung.com>
Diffstat (limited to 'exynos')
| -rw-r--r-- | exynos/exynos_fimg2d.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/exynos/exynos_fimg2d.c b/exynos/exynos_fimg2d.c index b10620b2..3bef93b0 100644 --- a/exynos/exynos_fimg2d.c +++ b/exynos/exynos_fimg2d.c @@ -65,6 +65,44 @@ enum g2d_base_addr_reg { g2d_src }; +enum e_g2d_dir_mode { + G2D_DIR_MODE_POSITIVE = 0, + G2D_DIR_MODE_NEGATIVE = 1 +}; + +union g2d_direction_val { + unsigned int val[2]; + struct { + /* SRC_MSK_DIRECT_REG [0:1] (source) */ + enum e_g2d_dir_mode src_x_direction:1; + enum e_g2d_dir_mode src_y_direction:1; + + /* SRC_MSK_DIRECT_REG [2:3] */ + unsigned int reversed1:2; + + /* SRC_MSK_DIRECT_REG [4:5] (mask) */ + enum e_g2d_dir_mode mask_x_direction:1; + enum e_g2d_dir_mode mask_y_direction:1; + + /* SRC_MSK_DIRECT_REG [6:31] */ + unsigned int padding1:26; + + /* DST_PAT_DIRECT_REG [0:1] (destination) */ + enum e_g2d_dir_mode dst_x_direction:1; + enum e_g2d_dir_mode dst_y_direction:1; + + /* DST_PAT_DIRECT_REG [2:3] */ + unsigned int reversed2:2; + + /* DST_PAT_DIRECT_REG [4:5] (pattern) */ + enum e_g2d_dir_mode pat_x_direction:1; + enum e_g2d_dir_mode pat_y_direction:1; + + /* DST_PAT_DIRECT_REG [6:31] */ + unsigned int padding2:26; + } data; +}; + static unsigned int g2d_get_scaling(unsigned int src, unsigned int dst) { /* @@ -242,6 +280,19 @@ static void g2d_add_base_addr(struct g2d_context *ctx, struct g2d_image *img, } /* + * g2d_set_direction - setup direction register (useful for overlapping blits). + * + * @ctx: a pointer to g2d_context structure. + * @dir: a pointer to the g2d_direction_val structure. + */ +static void g2d_set_direction(struct g2d_context *ctx, + const union g2d_direction_val *dir) +{ + g2d_add_cmd(ctx, SRC_MASK_DIRECT_REG, dir->val[0]); + g2d_add_cmd(ctx, DST_PAT_DIRECT_REG, dir->val[1]); +} + +/* * g2d_reset - reset fimg2d hardware. * * @ctx: a pointer to g2d_context structure. |