[PATCH v3 12/29] media: iris: implement s_fmt, g_fmt and try_fmt ioctls

[Dikshita Agarwal via B4 Relay <devnull+quic_dikshita.quicinc.com@kernel.org>]

From: Vedang Nagar <quic_vnagar@quicinc.com>

Implement s_fmt, g_fmt and try_fmt IOCTL ops in
the driver with necessary hooks.

Signed-off-by: Vedang Nagar <quic_vnagar@quicinc.com>
Signed-off-by: Dikshita Agarwal <quic_dikshita@quicinc.com>
---
 drivers/media/platform/qcom/iris/iris_vdec.c | 129 +++++++++++++++++++++++++++
 drivers/media/platform/qcom/iris/iris_vdec.h |   2 +
 drivers/media/platform/qcom/iris/iris_vidc.c |  60 +++++++++++++
 3 files changed, 191 insertions(+)

diff --git a/drivers/media/platform/qcom/iris/iris_vdec.c b/drivers/media/platform/qcom/iris/iris_vdec.c
index 7d1ef31c7c44..fd04f56b405d 100644
--- a/drivers/media/platform/qcom/iris/iris_vdec.c
+++ b/drivers/media/platform/qcom/iris/iris_vdec.c
@@ -3,6 +3,8 @@
  * Copyright (c) 2022-2024 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
+#include <media/v4l2-mem2mem.h>
+
 #include "iris_buffer.h"
 #include "iris_instance.h"
 #include "iris_vdec.h"
@@ -10,6 +12,7 @@
 
 #define DEFAULT_WIDTH 320
 #define DEFAULT_HEIGHT 240
+#define DEFAULT_CODEC_ALIGNMENT 16
 
 void iris_vdec_inst_init(struct iris_inst *inst)
 {
@@ -56,3 +59,129 @@ void iris_vdec_inst_deinit(struct iris_inst *inst)
 	kfree(inst->fmt_dst);
 	kfree(inst->fmt_src);
 }
+
+int iris_vdec_try_fmt(struct iris_inst *inst, struct v4l2_format *f)
+{
+	struct v4l2_pix_format_mplane *pixmp = &f->fmt.pix_mp;
+	struct v4l2_m2m_ctx *m2m_ctx = inst->m2m_ctx;
+	struct v4l2_format *f_inst;
+	struct vb2_queue *src_q;
+
+	src_q = v4l2_m2m_get_src_vq(m2m_ctx);
+	memset(pixmp->reserved, 0, sizeof(pixmp->reserved));
+	if (V4L2_TYPE_IS_OUTPUT(f->type)) {
+		if (f->fmt.pix_mp.pixelformat != V4L2_PIX_FMT_H264) {
+			f_inst = inst->fmt_src;
+			f->fmt.pix_mp.width = f_inst->fmt.pix_mp.width;
+			f->fmt.pix_mp.height = f_inst->fmt.pix_mp.height;
+			f->fmt.pix_mp.pixelformat = f_inst->fmt.pix_mp.pixelformat;
+		}
+	} else if (V4L2_TYPE_IS_CAPTURE(f->type)) {
+		if (f->fmt.pix_mp.pixelformat != V4L2_PIX_FMT_NV12) {
+			f_inst = inst->fmt_dst;
+			f->fmt.pix_mp.pixelformat = f_inst->fmt.pix_mp.pixelformat;
+			f->fmt.pix_mp.width = f_inst->fmt.pix_mp.width;
+			f->fmt.pix_mp.height = f_inst->fmt.pix_mp.height;
+		}
+		if (vb2_is_streaming(src_q)) {
+			f_inst = inst->fmt_src;
+			f->fmt.pix_mp.height = f_inst->fmt.pix_mp.height;
+			f->fmt.pix_mp.width = f_inst->fmt.pix_mp.width;
+		}
+	} else {
+		return -EINVAL;
+	}
+
+	if (pixmp->field == V4L2_FIELD_ANY)
+		pixmp->field = V4L2_FIELD_NONE;
+
+	pixmp->num_planes = 1;
+
+	return 0;
+}
+
+int iris_vdec_s_fmt(struct iris_inst *inst, struct v4l2_format *f)
+{
+	struct v4l2_format *fmt, *output_fmt;
+	struct vb2_queue *q;
+	u32 codec_align;
+
+	int ret = 0;
+
+	q = v4l2_m2m_get_vq(inst->m2m_ctx, f->type);
+	if (!q)
+		return -EINVAL;
+
+	iris_vdec_try_fmt(inst, f);
+
+	if (V4L2_TYPE_IS_OUTPUT(f->type)) {
+		if (f->fmt.pix_mp.pixelformat != V4L2_PIX_FMT_H264)
+			return -EINVAL;
+
+		fmt = inst->fmt_src;
+		fmt->type = V4L2_BUF_TYPE_VIDEO_OUTPUT_MPLANE;
+
+		codec_align = DEFAULT_CODEC_ALIGNMENT;
+		fmt->fmt.pix_mp.width = ALIGN(f->fmt.pix_mp.width, codec_align);
+		fmt->fmt.pix_mp.height = ALIGN(f->fmt.pix_mp.height, codec_align);
+		fmt->fmt.pix_mp.num_planes = 1;
+		fmt->fmt.pix_mp.plane_fmt[0].bytesperline = 0;
+		fmt->fmt.pix_mp.plane_fmt[0].sizeimage = iris_get_buffer_size(inst, BUF_INPUT);
+		inst->buffers[BUF_INPUT].min_count = iris_vpu_buf_count(inst, BUF_INPUT);
+		if (inst->buffers[BUF_INPUT].actual_count < inst->buffers[BUF_INPUT].min_count)
+			inst->buffers[BUF_INPUT].actual_count = inst->buffers[BUF_INPUT].min_count;
+
+		inst->buffers[BUF_INPUT].size = fmt->fmt.pix_mp.plane_fmt[0].sizeimage;
+
+		fmt->fmt.pix_mp.colorspace = f->fmt.pix_mp.colorspace;
+		fmt->fmt.pix_mp.xfer_func = f->fmt.pix_mp.xfer_func;
+		fmt->fmt.pix_mp.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+		fmt->fmt.pix_mp.quantization = f->fmt.pix_mp.quantization;
+
+		output_fmt = inst->fmt_dst;
+		output_fmt->fmt.pix_mp.colorspace = f->fmt.pix_mp.colorspace;
+		output_fmt->fmt.pix_mp.xfer_func = f->fmt.pix_mp.xfer_func;
+		output_fmt->fmt.pix_mp.ycbcr_enc = f->fmt.pix_mp.ycbcr_enc;
+		output_fmt->fmt.pix_mp.quantization = f->fmt.pix_mp.quantization;
+
+		inst->crop.left = 0;
+		inst->crop.top = 0;
+		inst->crop.width = f->fmt.pix_mp.width;
+		inst->crop.height = f->fmt.pix_mp.height;
+	} else if (V4L2_TYPE_IS_CAPTURE(f->type)) {
+		fmt = inst->fmt_dst;
+		fmt->type = V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE;
+		if (q->streaming) {
+			f->fmt.pix_mp.height = inst->fmt_src->fmt.pix_mp.height;
+			f->fmt.pix_mp.width = inst->fmt_src->fmt.pix_mp.width;
+		}
+		if (fmt->fmt.pix_mp.pixelformat != V4L2_PIX_FMT_NV12)
+			return -EINVAL;
+		fmt->fmt.pix_mp.pixelformat = f->fmt.pix_mp.pixelformat;
+		fmt->fmt.pix_mp.width = ALIGN(f->fmt.pix_mp.width, 128);
+		fmt->fmt.pix_mp.height = ALIGN(f->fmt.pix_mp.height, 32);
+		fmt->fmt.pix_mp.num_planes = 1;
+		fmt->fmt.pix_mp.plane_fmt[0].bytesperline = ALIGN(f->fmt.pix_mp.width, 128);
+		fmt->fmt.pix_mp.plane_fmt[0].sizeimage = iris_get_buffer_size(inst, BUF_OUTPUT);
+
+		if (!q->streaming)
+			inst->buffers[BUF_OUTPUT].min_count = iris_vpu_buf_count(inst, BUF_INPUT);
+		if (inst->buffers[BUF_OUTPUT].actual_count < inst->buffers[BUF_OUTPUT].min_count)
+			inst->buffers[BUF_OUTPUT].actual_count =
+				inst->buffers[BUF_OUTPUT].min_count;
+
+		inst->buffers[BUF_OUTPUT].size = fmt->fmt.pix_mp.plane_fmt[0].sizeimage;
+
+		if (!q->streaming) {
+			inst->crop.top = 0;
+			inst->crop.left = 0;
+			inst->crop.width = f->fmt.pix_mp.width;
+			inst->crop.height = f->fmt.pix_mp.height;
+		}
+	} else {
+		return -EINVAL;
+	}
+	memcpy(f, fmt, sizeof(*fmt));
+
+	return ret;
+}
diff --git a/drivers/media/platform/qcom/iris/iris_vdec.h b/drivers/media/platform/qcom/iris/iris_vdec.h
index 0324d7f796dd..4f2557d15ca2 100644
--- a/drivers/media/platform/qcom/iris/iris_vdec.h
+++ b/drivers/media/platform/qcom/iris/iris_vdec.h
@@ -10,5 +10,7 @@ struct iris_inst;
 
 void iris_vdec_inst_init(struct iris_inst *inst);
 void iris_vdec_inst_deinit(struct iris_inst *inst);
+int iris_vdec_try_fmt(struct iris_inst *inst, struct v4l2_format *f);
+int iris_vdec_s_fmt(struct iris_inst *inst, struct v4l2_format *f);
 
 #endif
diff --git a/drivers/media/platform/qcom/iris/iris_vidc.c b/drivers/media/platform/qcom/iris/iris_vidc.c
index 70ce2296d1b2..7eafbbfd22e4 100644
--- a/drivers/media/platform/qcom/iris/iris_vidc.c
+++ b/drivers/media/platform/qcom/iris/iris_vidc.c
@@ -255,6 +255,60 @@ int iris_close(struct file *filp)
 	return 0;
 }
 
+static int iris_try_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f)
+{
+	struct iris_inst *inst;
+	int ret;
+
+	inst = iris_get_inst(filp, fh);
+	if (!inst)
+		return -EINVAL;
+
+	mutex_lock(&inst->lock);
+	ret = iris_vdec_try_fmt(inst, f);
+	mutex_unlock(&inst->lock);
+
+	return ret;
+}
+
+static int iris_s_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f)
+{
+	struct iris_inst *inst;
+	int ret;
+
+	inst = iris_get_inst(filp, fh);
+	if (!inst)
+		return -EINVAL;
+
+	mutex_lock(&inst->lock);
+	ret = iris_vdec_s_fmt(inst, f);
+	mutex_unlock(&inst->lock);
+
+	return ret;
+}
+
+static int iris_g_fmt_vid_mplane(struct file *filp, void *fh, struct v4l2_format *f)
+{
+	struct iris_inst *inst;
+	int ret = 0;
+
+	inst = iris_get_inst(filp, fh);
+	if (!inst)
+		return -EINVAL;
+
+	mutex_lock(&inst->lock);
+	if (V4L2_TYPE_IS_OUTPUT(f->type))
+		memcpy(f, inst->fmt_src, sizeof(*f));
+	else if (V4L2_TYPE_IS_CAPTURE(f->type))
+		memcpy(f, inst->fmt_dst, sizeof(*f));
+	else
+		ret = -EINVAL;
+
+	mutex_unlock(&inst->lock);
+
+	return ret;
+}
+
 static struct v4l2_file_operations iris_v4l2_file_ops = {
 	.owner                          = THIS_MODULE,
 	.open                           = iris_open,
@@ -269,6 +323,12 @@ static const struct vb2_ops iris_vb2_ops = {
 };
 
 static const struct v4l2_ioctl_ops iris_v4l2_ioctl_ops = {
+	.vidioc_try_fmt_vid_cap_mplane  = iris_try_fmt_vid_mplane,
+	.vidioc_try_fmt_vid_out_mplane  = iris_try_fmt_vid_mplane,
+	.vidioc_s_fmt_vid_cap_mplane    = iris_s_fmt_vid_mplane,
+	.vidioc_s_fmt_vid_out_mplane    = iris_s_fmt_vid_mplane,
+	.vidioc_g_fmt_vid_cap_mplane    = iris_g_fmt_vid_mplane,
+	.vidioc_g_fmt_vid_out_mplane    = iris_g_fmt_vid_mplane,
 	.vidioc_reqbufs                 = v4l2_m2m_ioctl_reqbufs,
 };
 

-- 
2.34.1