[media] s5p-mfc: Add Horizontal and Vertical MV Search Range

This patch adds Controls to set Horizontal and Vertical search range
for Motion Estimation block for Samsung MFC video Encoders.

Signed-off-by: Swami Nathan <swaminath.p@samsung.com>
Signed-off-by: Amit Grover <amit.grover@samsung.com>
Signed-off-by: Kamil Debski <k.debski@samsung.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/platform/s5p-mfc/regs-mfc-v6.h

@@ -229,6 +229,7 @@
 #define S5P_FIMV_E_PADDING_CTRL_V6		0xf7a4
 #define S5P_FIMV_E_MV_HOR_RANGE_V6		0xf7ac
 #define S5P_FIMV_E_MV_VER_RANGE_V6		0xf7b0
+#define S5P_FIMV_E_MV_RANGE_V6_MASK		0x3fff
 
 #define S5P_FIMV_E_VBV_BUFFER_SIZE_V6		0xf84c
 #define S5P_FIMV_E_VBV_INIT_DELAY_V6		0xf850

drivers/media/platform/s5p-mfc/s5p_mfc_common.h

@@ -426,6 +426,8 @@ struct s5p_mfc_vp8_enc_params {
 struct s5p_mfc_enc_params {
 	u16 width;
 	u16 height;
+	u32 mv_h_range;
+	u32 mv_v_range;
 
 	u16 gop_size;
 	enum v4l2_mpeg_video_multi_slice_mode slice_mode;

drivers/media/platform/s5p-mfc/s5p_mfc_enc.c

@@ -207,6 +207,24 @@ static struct mfc_control controls[] = {
 		.step = 1,
 		.default_value = 0,
 	},
+	{
+		.id = V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "Horizontal MV Search Range",
+		.minimum = 16,
+		.maximum = 128,
+		.step = 16,
+		.default_value = 32,
+	},
+	{
+		.id = V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE,
+		.type = V4L2_CTRL_TYPE_INTEGER,
+		.name = "Vertical MV Search Range",
+		.minimum = 16,
+		.maximum = 128,
+		.step = 16,
+		.default_value = 32,
+	},
 	{
 		.id = V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE,
 		.type = V4L2_CTRL_TYPE_INTEGER,
@@ -1417,6 +1435,12 @@ static int s5p_mfc_enc_s_ctrl(struct v4l2_ctrl *ctrl)
 	case V4L2_CID_MPEG_VIDEO_VBV_SIZE:
 		p->vbv_size = ctrl->val;
 		break;
+	case V4L2_CID_MPEG_VIDEO_MV_H_SEARCH_RANGE:
+		p->mv_h_range = ctrl->val;
+		break;
+	case V4L2_CID_MPEG_VIDEO_MV_V_SEARCH_RANGE:
+		p->mv_v_range = ctrl->val;
+		break;
 	case V4L2_CID_MPEG_VIDEO_H264_CPB_SIZE:
 		p->codec.h264.cpb_size = ctrl->val;
 		break;

drivers/media/platform/s5p-mfc/s5p_mfc_opr_v6.c

@@ -727,14 +727,10 @@ static int s5p_mfc_set_enc_params(struct s5p_mfc_ctx *ctx)
 	WRITEL(reg, S5P_FIMV_E_RC_CONFIG_V6);
 
 	/* setting for MV range [16, 256] */
-	reg = 0;
-	reg &= ~(0x3FFF);
-	reg = 256;
+	reg = (p->mv_h_range & S5P_FIMV_E_MV_RANGE_V6_MASK);
 	WRITEL(reg, S5P_FIMV_E_MV_HOR_RANGE_V6);
 
-	reg = 0;
-	reg &= ~(0x3FFF);
-	reg = 256;
+	reg = (p->mv_v_range & S5P_FIMV_E_MV_RANGE_V6_MASK);
 	WRITEL(reg, S5P_FIMV_E_MV_VER_RANGE_V6);
 
 	WRITEL(0x0, S5P_FIMV_E_FRAME_INSERTION_V6);