[PATCH v4 19/26] media: iris: Add support for G/S_SELECTION for encoder video device

[Dikshita Agarwal <quic_dikshita@quicinc.com>]

Add support for G/S_SELECTION V4L2 ioctls for the encoder video
device with necessary hooks. This allows userspace to query and
configure rectangular selection areas such as crop.

Tested-by: Vikash Garodia <quic_vgarodia@quicinc.com> # X1E80100
Reviewed-by: Vikash Garodia <quic_vgarodia@quicinc.com>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8550-HDK
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-HDK
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
---
 drivers/media/platform/qcom/iris/iris_venc.c | 26 +++++++++++
 drivers/media/platform/qcom/iris/iris_venc.h |  1 +
 drivers/media/platform/qcom/iris/iris_vidc.c | 65 ++++++++++++++++++++++------
 3 files changed, 78 insertions(+), 14 deletions(-)

diff --git a/drivers/media/platform/qcom/iris/iris_venc.c b/drivers/media/platform/qcom/iris/iris_venc.c
index 384b30555546f2a0677e49400f177b96611f866b..71960a0e903d114be7a9e797089c3dee2fab2545 100644
--- a/drivers/media/platform/qcom/iris/iris_venc.c
+++ b/drivers/media/platform/qcom/iris/iris_venc.c
@@ -300,3 +300,29 @@ int iris_venc_subscribe_event(struct iris_inst *inst,
 		return -EINVAL;
 	}
 }
+
+int iris_venc_s_selection(struct iris_inst *inst, struct v4l2_selection *s)
+{
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT)
+		return -EINVAL;
+
+	switch (s->target) {
+	case V4L2_SEL_TGT_CROP:
+		s->r.left = 0;
+		s->r.top = 0;
+
+		if (s->r.width > inst->fmt_src->fmt.pix_mp.width ||
+		    s->r.height > inst->fmt_src->fmt.pix_mp.height)
+			return -EINVAL;
+
+		inst->crop.left = s->r.left;
+		inst->crop.top = s->r.top;
+		inst->crop.width = s->r.width;
+		inst->crop.height = s->r.height;
+		inst->fmt_dst->fmt.pix_mp.width = inst->crop.width;
+		inst->fmt_dst->fmt.pix_mp.height = inst->crop.height;
+		return iris_venc_s_fmt_output(inst, inst->fmt_dst);
+	default:
+		return -EINVAL;
+	}
+}
diff --git a/drivers/media/platform/qcom/iris/iris_venc.h b/drivers/media/platform/qcom/iris/iris_venc.h
index 2d9614ae18e8a2318df6673fbeae5ee33c99b596..72c6e25d87113baa6d2219ae478b7d7df1aed7bf 100644
--- a/drivers/media/platform/qcom/iris/iris_venc.h
+++ b/drivers/media/platform/qcom/iris/iris_venc.h
@@ -15,5 +15,6 @@ int iris_venc_try_fmt(struct iris_inst *inst, struct v4l2_format *f);
 int iris_venc_s_fmt(struct iris_inst *inst, struct v4l2_format *f);
 int iris_venc_validate_format(struct iris_inst *inst, u32 pixelformat);
 int iris_venc_subscribe_event(struct iris_inst *inst, const struct v4l2_event_subscription *sub);
+int iris_venc_s_selection(struct iris_inst *inst, struct v4l2_selection *s);
 
 #endif
diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c
index 5d9b36858e9317b1eddac12004432229e18967a7..b134ae710d9e1d02bc52db2e9356fdc4f668a387 100644
--- a/drivers/media/platform/qcom/iris/iris_vidc.c
+++ b/drivers/media/platform/qcom/iris/iris_vidc.c
@@ -460,29 +460,64 @@ static int iris_g_selection(struct file *filp, void *fh, struct v4l2_selection *
 {
 	struct iris_inst *inst = iris_get_inst(filp);
 
-	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE)
+	if (s->type != V4L2_BUF_TYPE_VIDEO_CAPTURE &&
+	    inst->domain == DECODER)
 		return -EINVAL;
 
-	switch (s->target) {
-	case V4L2_SEL_TGT_CROP_BOUNDS:
-	case V4L2_SEL_TGT_CROP_DEFAULT:
-	case V4L2_SEL_TGT_CROP:
-	case V4L2_SEL_TGT_COMPOSE_BOUNDS:
-	case V4L2_SEL_TGT_COMPOSE_PADDED:
-	case V4L2_SEL_TGT_COMPOSE_DEFAULT:
-	case V4L2_SEL_TGT_COMPOSE:
+	if (s->type != V4L2_BUF_TYPE_VIDEO_OUTPUT &&
+	    inst->domain == ENCODER)
+		return -EINVAL;
+
+	if (inst->domain == DECODER) {
+		switch (s->target) {
+		case V4L2_SEL_TGT_CROP_BOUNDS:
+		case V4L2_SEL_TGT_CROP_DEFAULT:
+		case V4L2_SEL_TGT_CROP:
+		case V4L2_SEL_TGT_COMPOSE_BOUNDS:
+		case V4L2_SEL_TGT_COMPOSE_PADDED:
+		case V4L2_SEL_TGT_COMPOSE_DEFAULT:
+		case V4L2_SEL_TGT_COMPOSE:
+			s->r.left = inst->crop.left;
+			s->r.top = inst->crop.top;
+			s->r.width = inst->crop.width;
+			s->r.height = inst->crop.height;
+			break;
+		default:
+			return -EINVAL;
+		}
+	} else if (inst->domain == ENCODER) {
+		switch (s->target) {
+		case V4L2_SEL_TGT_CROP_BOUNDS:
+		case V4L2_SEL_TGT_CROP_DEFAULT:
+			s->r.width = inst->fmt_src->fmt.pix_mp.width;
+			s->r.height = inst->fmt_src->fmt.pix_mp.height;
+			break;
+		case V4L2_SEL_TGT_CROP:
+			s->r.width = inst->crop.width;
+			s->r.height = inst->crop.height;
+			break;
+		default:
+			return -EINVAL;
+		}
 		s->r.left = inst->crop.left;
 		s->r.top = inst->crop.top;
-		s->r.width = inst->crop.width;
-		s->r.height = inst->crop.height;
-		break;
-	default:
-		return -EINVAL;
 	}
 
 	return 0;
 }
 
+static int iris_s_selection(struct file *filp, void *fh, struct v4l2_selection *s)
+{
+	struct iris_inst *inst = iris_get_inst(filp);
+
+	if (inst->domain == DECODER)
+		return -EINVAL;
+	else if (inst->domain == ENCODER)
+		return iris_venc_s_selection(inst, s);
+
+	return -EINVAL;
+}
+
 static int iris_subscribe_event(struct v4l2_fh *fh, const struct v4l2_event_subscription *sub)
 {
 	struct iris_inst *inst = container_of(fh, struct iris_inst, fh);
@@ -589,6 +624,8 @@ static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops_enc = {
 	.vidioc_querycap                = iris_querycap,
 	.vidioc_subscribe_event         = iris_subscribe_event,
 	.vidioc_unsubscribe_event       = v4l2_event_unsubscribe,
+	.vidioc_g_selection             = iris_g_selection,
+	.vidioc_s_selection             = iris_s_selection,
 };
 
 void iris_init_ops(struct iris_core *core)

-- 
2.34.1