linux-kernel - [PATCH v2 14/15] media: vimc: cap: Add support for multiplanar formats

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Message-Id: <20190327151743.18528-15-andrealmeid@collabora.com>
Date:   Wed, 27 Mar 2019 12:17:42 -0300
From:   André Almeida <andrealmeid@...labora.com>
To:     linux-media@...r.kernel.org
Cc:     mchehab@...nel.org, hverkuil@...all.nl, helen.koike@...labora.com,
        lucmaga@...il.com, linux-kernel@...r.kernel.org,
        kernel@...labora.com, lkcamp@...ts.libreplanetbr.org
Subject: [PATCH v2 14/15] media: vimc: cap: Add support for multiplanar formats

Adapt vimc-capture to support multiplanar formats, copying
each plane to the correct buffer.

Signed-off-by: André Almeida <andrealmeid@...labora.com>
---
Change in v2: none

 drivers/media/platform/vimc/vimc-capture.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/media/platform/vimc/vimc-capture.c b/drivers/media/platform/vimc/vimc-capture.c
index fae42b778711..f5bfb36a145c 100644
--- a/drivers/media/platform/vimc/vimc-capture.c
+++ b/drivers/media/platform/vimc/vimc-capture.c
@@ -606,6 +606,8 @@ static struct vimc_frame *vimc_cap_process_frame(struct vimc_ent_device *ved,
 	struct vimc_cap_device *vcap = container_of(ved, struct vimc_cap_device,
 						    ved);
 	struct vimc_cap_buffer *vimc_buf;
+	unsigned long plane_size;
+	unsigned int i;
 	void *vbuf;
 
 	spin_lock(&vcap->qlock);
@@ -628,13 +630,17 @@ static struct vimc_frame *vimc_cap_process_frame(struct vimc_ent_device *ved,
 	vimc_buf->vb2.sequence = vcap->sequence++;
 	vimc_buf->vb2.field = vcap->format.fmt.pix.field;
 
-	vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, 0);
+	/* For each plane, copy the pixels */
+	for (i = 0; i < vimc_buf->vb2.vb2_buf.num_planes; i++) {
+		vbuf = vb2_plane_vaddr(&vimc_buf->vb2.vb2_buf, i);
+		plane_size = frame->sizeimage[i];
+
+		memcpy(vbuf, frame->plane_addr[i], plane_size);
 
-	memcpy(vbuf, frame->plane_addr[0], vcap->format.fmt.pix.sizeimage);
+		/* Set it as ready */
+		vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, i, plane_size);
+	}
 
-	/* Set it as ready */
-	vb2_set_plane_payload(&vimc_buf->vb2.vb2_buf, 0,
-			      vcap->format.fmt.pix.sizeimage);
 	vb2_buffer_done(&vimc_buf->vb2.vb2_buf, VB2_BUF_STATE_DONE);
 	return NULL;
 }
-- 
2.21.0