Re: [PATCH 3/6] media: aspeed: refine to centerize format/compress settings

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Dear Paul,


On 2021/10/14 下午 02:36, Paul Menzel wrote:
Dear Jammy,


Am 14.10.21 um 05:48 schrieb Jammy Huang:

[PATCH 3/6] media: aspeed: refine to centerize format/compress settings
Do you mean to “refactor”? Maybe:

Refactor format/compress settings into dedicated function
Add API, aspeed_video_update_regs(), to centerize format/compress settings
which are controlled by user.
I do not know “centerize”. Maybe somebody else has an idea.
Sorry, I mean 'gather' here.
… to control format/compress settings controlled by the user.
Could you please paste the new log messages?
Sure.

Signed-off-by: Jammy Huang <jammy_huang@xxxxxxxxxxxxxx>
---
   drivers/media/platform/aspeed-video.c | 68 +++++++++++++--------------
   1 file changed, 34 insertions(+), 34 deletions(-)

diff --git a/drivers/media/platform/aspeed-video.c b/drivers/media/platform/aspeed-video.c
index 7b8129b0ca5f..3b5a3935325d 100644
--- a/drivers/media/platform/aspeed-video.c
+++ b/drivers/media/platform/aspeed-video.c
@@ -974,20 +974,41 @@ static void aspeed_video_set_resolution(struct aspeed_video *video)
   		aspeed_video_free_buf(video, &video->srcs[0]);
   }
-static void aspeed_video_init_regs(struct aspeed_video *video)
+static void aspeed_video_update_regs(struct aspeed_video *video)
   {
   	u32 comp_ctrl = VE_COMP_CTRL_RSVD |
   		FIELD_PREP(VE_COMP_CTRL_DCT_LUM, video->jpeg_quality) |
   		FIELD_PREP(VE_COMP_CTRL_DCT_CHR, video->jpeg_quality | 0x10);
-	u32 ctrl = VE_CTRL_AUTO_OR_CURSOR;
+	u32 ctrl = 0;
   	u32 seq_ctrl = VE_SEQ_CTRL_JPEG_MODE;
+ dprintk(LOG_INFO, "framerate(%d)\n", video->frame_rate);
+	dprintk(LOG_INFO, "subsample(%s)\n",
+		video->yuv420 ? "420" : "444");
+	dprintk(LOG_INFO, "compression quality(%d)\n",
+		video->jpeg_quality);
+
   	if (video->frame_rate)
   		ctrl |= FIELD_PREP(VE_CTRL_FRC, video->frame_rate);
if (video->yuv420)
   		seq_ctrl |= VE_SEQ_CTRL_YUV420;
+ if (video->jpeg.virt)
+		aspeed_video_update_jpeg_table(video->jpeg.virt, video->yuv420);
+
+	/* Set control registers */
+	aspeed_video_update(video, VE_SEQ_CTRL,
+			    VE_SEQ_CTRL_JPEG_MODE | VE_SEQ_CTRL_YUV420,
+			    seq_ctrl);
+	aspeed_video_update(video, VE_CTRL, VE_CTRL_FRC, ctrl);
+	aspeed_video_update(video, VE_COMP_CTRL,
+			    VE_COMP_CTRL_DCT_LUM | VE_COMP_CTRL_DCT_CHR,
+			    comp_ctrl);
+}
+
+static void aspeed_video_init_regs(struct aspeed_video *video)
+{
   	/* Unlock VE registers */
   	aspeed_video_write(video, VE_PROTECTION_KEY, VE_PROTECTION_KEY_UNLOCK);
@@ -1002,9 +1023,8 @@ static void aspeed_video_init_regs(struct aspeed_video *video)
   	aspeed_video_write(video, VE_JPEG_ADDR, video->jpeg.dma);
/* Set control registers */
-	aspeed_video_write(video, VE_SEQ_CTRL, seq_ctrl);
-	aspeed_video_write(video, VE_CTRL, ctrl);
-	aspeed_video_write(video, VE_COMP_CTRL, comp_ctrl);
+	aspeed_video_write(video, VE_CTRL, VE_CTRL_AUTO_OR_CURSOR);
+	aspeed_video_write(video, VE_COMP_CTRL, VE_COMP_CTRL_RSVD);
Why is this changed?

Previously, there are 2 places, aspeed_video_init_regs() and aspeed_video_update_jpeg_quality(), to modify reg-value for 'jpeg_quality'. Same condition for 'subsampling'. There will be more parameters related to capture/compress settings in later patch for aspeed-format. So I want to have these reg-value
modification codes happen at once and at one place.

In above code, I separate aspeed_video_update_regs() from aspeed_video_init_regs(). aspeed_video_init_regs() only gives default settings for VE_CTRL & VE_COMP_CTRL now.


/* Don't downscale */
   	aspeed_video_write(video, VE_SCALING_FACTOR, 0x10001000);
@@ -1335,27 +1355,6 @@ static const struct v4l2_ioctl_ops aspeed_video_ioctl_ops = {
   	.vidioc_unsubscribe_event = v4l2_event_unsubscribe,
   };
-static void aspeed_video_update_jpeg_quality(struct aspeed_video *video)
-{
-	u32 comp_ctrl = FIELD_PREP(VE_COMP_CTRL_DCT_LUM, video->jpeg_quality) |
-		FIELD_PREP(VE_COMP_CTRL_DCT_CHR, video->jpeg_quality | 0x10);
-
-	aspeed_video_update(video, VE_COMP_CTRL,
-			    VE_COMP_CTRL_DCT_LUM | VE_COMP_CTRL_DCT_CHR,
-			    comp_ctrl);
-}
-
-static void aspeed_video_update_subsampling(struct aspeed_video *video)
-{
-	if (video->jpeg.virt)
-		aspeed_video_update_jpeg_table(video->jpeg.virt, video->yuv420);
-
-	if (video->yuv420)
-		aspeed_video_update(video, VE_SEQ_CTRL, 0, VE_SEQ_CTRL_YUV420);
-	else
-		aspeed_video_update(video, VE_SEQ_CTRL, VE_SEQ_CTRL_YUV420, 0);
-}
-
   static int aspeed_video_set_ctrl(struct v4l2_ctrl *ctrl)
   {
   	struct aspeed_video *video = container_of(ctrl->handler,
@@ -1365,16 +1364,13 @@ static int aspeed_video_set_ctrl(struct v4l2_ctrl *ctrl)
   	switch (ctrl->id) {
   	case V4L2_CID_JPEG_COMPRESSION_QUALITY:
   		video->jpeg_quality = ctrl->val;
-		aspeed_video_update_jpeg_quality(video);
+		if (test_bit(VIDEO_STREAMING, &video->flags))
+			aspeed_video_update_regs(video);
   		break;
   	case V4L2_CID_JPEG_CHROMA_SUBSAMPLING:
-		if (ctrl->val == V4L2_JPEG_CHROMA_SUBSAMPLING_420) {
-			video->yuv420 = true;
-			aspeed_video_update_subsampling(video);
-		} else {
-			video->yuv420 = false;
-			aspeed_video_update_subsampling(video);
-		}
+		video->yuv420 = (ctrl->val == V4L2_JPEG_CHROMA_SUBSAMPLING_420);
+		if (test_bit(VIDEO_STREAMING, &video->flags))
+			aspeed_video_update_regs(video);
   		break;
   	default:
   		return -EINVAL;
@@ -1404,6 +1400,8 @@ static void aspeed_video_resolution_work(struct work_struct *work)
aspeed_video_init_regs(video); + aspeed_video_update_regs(video);
+
   	aspeed_video_get_resolution(video);
if (video->detected_timings.width != video->active_timings.width ||
@@ -1518,6 +1516,8 @@ static int aspeed_video_start_streaming(struct vb2_queue *q,
   	video->perf.duration_max = 0;
   	video->perf.duration_min = 0xffffffff;
+ aspeed_video_update_regs(video);
+
   	rc = aspeed_video_start_frame(video);
   	if (rc) {
   		aspeed_video_bufs_done(video, VB2_BUF_STATE_QUEUED);

Kind regards,

Paul



[Index of Archives]     [Linux Input]     [Video for Linux]     [Gstreamer Embedded]     [Mplayer Users]     [Linux USB Devel]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [Yosemite Backpacking]

  Powered by Linux