From: Philipp Zabel <p.zabel@pengutronix.de>
To: linux-media@vger.kernel.org
Cc: Mauro Carvalho Chehab <mchehab@kernel.org>,
Hans Verkuil <hverkuil@xs4all.nl>,
kernel@pengutronix.de
Subject: [PATCH 11/28] media: coda: make coda_bitstream_queue more versatile
Date: Tue, 18 Jun 2019 18:45:18 +0200 [thread overview]
Message-ID: <20190618164535.20162-12-p.zabel@pengutronix.de> (raw)
In-Reply-To: <20190618164535.20162-1-p.zabel@pengutronix.de>
Pass vaddr and size to coda_bitstream_queue instead of a struct
vb2_v4l2_buffer to make it reusable for queueing data that is
not exactly a whole v4l2 buffer into the bitstream ringbuffer.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
---
drivers/media/platform/coda/coda-bit.c | 23 +++++++++--------------
1 file changed, 9 insertions(+), 14 deletions(-)
diff --git a/drivers/media/platform/coda/coda-bit.c b/drivers/media/platform/coda/coda-bit.c
index 494bc130c7af..4f96f808b4dd 100644
--- a/drivers/media/platform/coda/coda-bit.c
+++ b/drivers/media/platform/coda/coda-bit.c
@@ -199,33 +199,25 @@ static int coda_bitstream_pad(struct coda_ctx *ctx, u32 size)
return (n < size) ? -ENOSPC : 0;
}
-static int coda_bitstream_queue(struct coda_ctx *ctx,
- struct vb2_v4l2_buffer *src_buf)
+static int coda_bitstream_queue(struct coda_ctx *ctx, const u8 *buf, u32 size)
{
- u32 src_size = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
- u32 n;
-
- n = kfifo_in(&ctx->bitstream_fifo,
- vb2_plane_vaddr(&src_buf->vb2_buf, 0), src_size);
- if (n < src_size)
- return -ENOSPC;
+ u32 n = kfifo_in(&ctx->bitstream_fifo, buf, size);
- src_buf->sequence = ctx->qsequence++;
-
- return 0;
+ return (n < size) ? -ENOSPC : 0;
}
static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
struct vb2_v4l2_buffer *src_buf)
{
unsigned long payload = vb2_get_plane_payload(&src_buf->vb2_buf, 0);
+ u8 *vaddr = vb2_plane_vaddr(&src_buf->vb2_buf, 0);
int ret;
if (coda_get_bitstream_payload(ctx) + payload + 512 >=
ctx->bitstream.size)
return false;
- if (vb2_plane_vaddr(&src_buf->vb2_buf, 0) == NULL) {
+ if (!vaddr) {
v4l2_err(&ctx->dev->v4l2_dev, "trying to queue empty buffer\n");
return true;
}
@@ -235,11 +227,14 @@ static bool coda_bitstream_try_queue(struct coda_ctx *ctx,
ctx->codec->src_fourcc == V4L2_PIX_FMT_H264)
coda_bitstream_pad(ctx, 512 - payload);
- ret = coda_bitstream_queue(ctx, src_buf);
+ ret = coda_bitstream_queue(ctx, vaddr, payload);
if (ret < 0) {
v4l2_err(&ctx->dev->v4l2_dev, "bitstream buffer overflow\n");
return false;
}
+
+ src_buf->sequence = ctx->qsequence++;
+
/* Sync read pointer to device */
if (ctx == v4l2_m2m_get_curr_priv(ctx->dev->m2m_dev))
coda_kfifo_sync_to_device_write(ctx);
--
2.20.1
next prev parent reply other threads:[~2019-06-18 16:45 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-18 16:45 [PATCH 00/28] media: coda: fixes and improvements Philipp Zabel
2019-06-18 16:45 ` [PATCH 01/28] media: coda: implement CMD_START to restart decoding Philipp Zabel
2019-06-18 16:45 ` [PATCH 02/28] media: coda: use mem2mem try_en/decoder_cmd helpers Philipp Zabel
2019-06-18 16:45 ` [PATCH 03/28] media: coda: fix mpeg2 sequence number handling Philipp Zabel
2019-06-18 16:45 ` [PATCH 04/28] media: coda: fix last buffer handling in V4L2_ENC_CMD_STOP Philipp Zabel
2019-06-18 16:45 ` [PATCH 05/28] media: coda: add coda_wake_up_capture_queue Philipp Zabel
2019-06-18 16:45 ` [PATCH 06/28] media: coda: fix V4L2_DEC_CMD_STOP when all buffers are already consumed Philipp Zabel
2019-06-18 16:45 ` [PATCH 07/28] media: coda: split decoder sequence initialization out of start decoding Philipp Zabel
2019-06-18 16:45 ` [PATCH 08/28] media: coda: add sequence initialization work Philipp Zabel
2019-06-18 16:45 ` [PATCH 09/28] media: coda: implement decoder source change event Philipp Zabel
2019-06-18 16:45 ` [PATCH 10/28] media: coda: integrate internal frame metadata into a structure Philipp Zabel
2019-06-18 16:45 ` Philipp Zabel [this message]
2019-06-18 16:45 ` [PATCH 12/28] media: coda: pad first buffer with repeated MPEG headers to fix sequence init Philipp Zabel
2019-06-18 16:45 ` [PATCH 13/28] media: coda: do not enforce 512-byte initial bitstream payload on CODA960 Philipp Zabel
2019-06-18 16:45 ` [PATCH 14/28] media: coda: flush bitstream ring buffer on decoder restart Philipp Zabel
2019-06-18 16:45 ` [PATCH 15/28] media: coda: increment sequence offset for the last returned frame Philipp Zabel
2019-06-18 16:45 ` [PATCH 16/28] media: coda: allow flagging last output buffer internally Philipp Zabel
2019-06-18 16:45 ` [PATCH 17/28] media: coda: mark the last output buffer on decoder stop command Philipp Zabel
2019-06-18 16:45 ` [PATCH 18/28] media: coda: only set the stream end flags if there are no more pending output buffers Philipp Zabel
2019-06-18 16:45 ` [PATCH 19/28] media: coda: mark the last output buffer on encoder stop command Philipp Zabel
2019-06-18 16:45 ` [PATCH 20/28] media: coda: retire coda_buf_is_end_of_stream Philipp Zabel
2019-06-18 16:45 ` [PATCH 21/28] media: coda: only wake up capture queue if no pending buffers to encode Philipp Zabel
2019-06-18 16:45 ` [PATCH 22/28] media: coda: flag the last encoded buffer Philipp Zabel
2019-06-18 16:45 ` [PATCH 23/28] media: coda: lock capture queue wakeup against encoder stop command Philipp Zabel
2019-06-18 16:45 ` [PATCH 24/28] media: coda: mark last pending buffer or last meta on decoder " Philipp Zabel
2019-06-18 16:45 ` [PATCH 25/28] media: coda: mark last returned frame Philipp Zabel
2019-06-18 16:45 ` [PATCH 26/28] media: coda: store device pointer in driver structure instead of pdev Philipp Zabel
2019-06-18 16:45 ` [PATCH 27/28] media: coda: add coda_slice_mode() function Philipp Zabel
2019-06-18 16:45 ` [PATCH 28/28] media: coda: encoder parameter change support Philipp Zabel
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