On 22.08.2023 18:16, Bryan O'Donoghue wrote:
From: Andrey Konovalov andrey.konovalov@linaro.org
In the current driver csid Test Pattern Generator (TPG) doesn't work. This change:
- fixes writing frame width and height values into CSID_TPG_DT_n_CFG_0
- fixes the shift by one between test_pattern control value and the actual pattern.
So that TPG starts working, but with the below limitations:
- only test_pattern=9 works as it should
- test_pattern=8 and test_pattern=7 produce black frame (all zeroes)
- the rest of test_pattern's don't work (yavta doesn't get the data)
- regardless of the CFA pattern set by 'media-ctl -V' the actual pixel order is always the same (RGGB for any RAW8 or RAW10P format in 4608x2592 resolution).
Tested with:
RAW10P format, VC0: media-ctl -V '"msm_csid0":0[fmt:SRGGB10/4608x2592 field:none]' media-ctl -V '"msm_vfe0_rdi0":0[fmt:SRGGB10/4608x2592 field:none]' media-ctl -l '"msm_csid0":1->"msm_vfe0_rdi0":0[1]' v4l2-ctl -d /dev/v4l-subdev6 -c test_pattern=9 yavta -B capture-mplane --capture=3 -n 3 -f SRGGB10P -s 4608x2592 /dev/video0
RAW10P format, VC1: media-ctl -V '"msm_csid0":2[fmt:SRGGB10/4608x2592 field:none]' media-ctl -V '"msm_vfe0_rdi1":0[fmt:SRGGB10/4608x2592 field:none]' media-ctl -l '"msm_csid0":2->"msm_vfe0_rdi1":0[1]' v4l2-ctl -d /dev/v4l-subdev6 -c test_pattern=9 yavta -B capture-mplane --capture=3 -n 3 -f SRGGB10P -s 4608x2592 /dev/video1
RAW8 format, VC0: media-ctl --reset media-ctl -V '"msm_csid0":0[fmt:SRGGB8/4608x2592 field:none]' media-ctl -V '"msm_vfe0_rdi0":0[fmt:SRGGB8/4608x2592 field:none]' media-ctl -l '"msm_csid0":1->"msm_vfe0_rdi0":0[1]' yavta -B capture-mplane --capture=3 -n 3 -f SRGGB8 -s 4608x2592 /dev/video0
Fixes: eebe6d00e9bf ("media: camss: Add support for CSID hardware version Titan 170") Cc: stable@vger.kernel.org Signed-off-by: Andrey Konovalov andrey.konovalov@linaro.org Signed-off-by: Bryan O'Donoghue bryan.odonoghue@linaro.org
That's a whole lot to unroll..
[...]
if (tg->enabled) {
/* Config Test Generator */vc = 0xa;
Which part does this hunk correlate to?
/* configure one DT, infinite frames */ val = vc << TPG_VC_CFG0_VC_NUM; val |= INTELEAVING_MODE_ONE_SHOT << TPG_VC_CFG0_LINE_INTERLEAVING_MODE;@@ -370,14 +367,14 @@ static void __csid_configure_stream(struct csid_device *csid, u8 enable, u8 vc) writel_relaxed(0x12345678, csid->base + CSID_TPG_LFSR_SEED);
val = input_format->height & 0x1fff << TPG_DT_n_CFG_0_FRAME_HEIGHT;val |= input_format->width & 0x1fff << TPG_DT_n_CFG_0_FRAME_WIDTH;
val = (input_format->height & 0x1fff) << TPG_DT_n_CFG_0_FRAME_HEIGHT;val |= (input_format->width & 0x1fff) << TPG_DT_n_CFG_0_FRAME_WIDTH; writel_relaxed(val, csid->base + CSID_TPG_DT_n_CFG_0(0));
This screams necessity for FIELD_PREP/GET! Could you please convert it in another series if you have time for it?
Konrad