From: "Heiko Stübner" <heiko@sntech.de>
To: helen.koike@collabora.com, linux-media@vger.kernel.org,
mchehab@kernel.org, Laurent.pinchart@ideasonboard.com,
hverkuil@xs4all.nl,
Dafna Hirschfeld <dafna.hirschfeld@collabora.com>
Cc: linux-rockchip@lists.infradead.org, ezequiel@collabora.com,
christoph.muellner@theobroma-systems.com, tfiga@chromium.org
Subject: Re: [PATCH v4 3/3] media: rockchip: rkisp1: extend uapi array sizes
Date: Sat, 16 Jan 2021 00:52:17 +0100 [thread overview]
Message-ID: <1739328.QCnGb9OGeP@diego> (raw)
In-Reply-To: <6a1a7cb2-7c37-6cbc-43e7-45e5b0b80e21@collabora.com>
Hi Dafna,
Am Freitag, 15. Januar 2021, 18:41:06 CET schrieb Dafna Hirschfeld:
>
> Am 15.01.21 um 17:38 schrieb Heiko Stuebner:
> > From: Heiko Stuebner <heiko.stuebner@theobroma-systems.com>
> >
> > Later variants of the rkisp1 block use more entries in some arrays:
> >
> > RKISP1_CIF_ISP_AE_MEAN_MAX 25 -> 81
> > RKISP1_CIF_ISP_HIST_BIN_N_MAX 16 -> 32
> > RKISP1_CIF_ISP_GAMMA_OUT_MAX_SAMPLES 17 -> 34
> > RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE 28 -> 81
>
> I see you didn't change the value for that define.
In the below patch I find
@@ -103,7 +111,9 @@
* Histogram calculation
*/
/* Last 3 values unused. */
-#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE 28
+#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10 28
+#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12 81
+#define RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V12
so I'm not sure I understand what you mean except this.
> The usage of it is a bit more complicated.
> It is used in function rkisp1_hst_config.
Yeah, though the for-loop iterates over 4*7 entry values, so stays
below the RKISP1_CIF_ISP_HISTOGRAM_WEIGHT_GRIDS_SIZE_V10 in all cases.
> Actually the real number of weight values are 25 (5x5) for rk3399,
> the last 3 are not used. I think that in order to support both
> 5x5 and 9x9 the code in rkisp1-params.c should change. I'll
> send a patch fixing it.
If you look at my V12-patch [0] the weight handling is done different there
and from the registers, it looks like they exchanges that part of the isp.
[0] https://lore.kernel.org/linux-media/20210108193311.3423236-11-heiko@sntech.de/
void rkisp1_hst_config_v12() as a search term
[...]
> > @@ -862,8 +898,16 @@ struct rkisp1_cif_isp_af_stat {
> > *
> > * @hist_bins: measured bin counters
> > *
> > - * Measurement window divided into 16 sub-windows, set
> > - * with ISP_HIST_XXX
> > + * Measurement window divided into 16 sub-windows for V10/V10
> > + * and 32 sub-windows for V12/V13, set with ISP_HIST_XXX
>
> It is actually not windows but histogram bins. Could you change it to:
> "The histogram values divided into 16 bins for V10/V11 and 32 bins
> for V12/V13. It is configured within the struct rkisp1_cif_isp_hst_config.
I've changed this like your suggestions and will give a bit of time for
the stuff above. But I guess I can send a v5 some time tomorrow?
Thanks for your input
Heiko
next prev parent reply other threads:[~2021-01-15 23:53 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-15 16:38 [PATCH v4 0/3] Fix the rkisp1 userspace API for later IP versions Heiko Stuebner
2021-01-15 16:38 ` [PATCH v4 1/3] media: rockchip: rkisp1: fix comment about number of histogram sub-windows Heiko Stuebner
2021-01-15 16:38 ` [PATCH v4 2/3] media: rockchip: rkisp1: carry ip version information Heiko Stuebner
2021-01-15 19:42 ` Laurent Pinchart
2021-01-15 20:29 ` Heiko Stübner
2021-01-18 9:19 ` Dafna Hirschfeld
2021-01-18 9:21 ` Heiko Stübner
2021-01-18 9:27 ` Laurent Pinchart
2021-01-15 16:38 ` [PATCH v4 3/3] media: rockchip: rkisp1: extend uapi array sizes Heiko Stuebner
2021-01-15 17:41 ` Dafna Hirschfeld
2021-01-15 23:52 ` Heiko Stübner [this message]
2021-01-16 9:05 ` Dafna Hirschfeld
2021-01-16 11:57 ` Heiko Stübner
2021-01-16 13:34 ` Dafna Hirschfeld
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