[PATCH v5 1/2] media: rockchip: rkisp1: Add support for Wide Dynamic Range
Paul Elder
paul.elder at ideasonboard.com
Tue May 13 03:40:13 PDT 2025
Hi Jai,
Thanks for the patch.
Quoting Jai Luthra (2025-04-29 13:41:53)
> RKISP supports a basic Wide Dynamic Range (WDR) module since the first
> iteration (v1.0) of the ISP. Add support for enabling and configuring it
> using extensible parameters.
>
> Also, to ease programming, switch to using macro variables for defining
> the tonemapping curve register addresses.
>
> Signed-off-by: Jai Luthra <jai.luthra at ideasonboard.com>
Looks good to me.
Reviewed-by: Paul Elder <paul.elder at ideasonboard.com>
> ---
> Changes in v5:
> - Ensure WDR_USE_IREF is unset before reading params from user
> - Fix alignment issues in WDR patch
> - Drop reset value information from doxygen comments for WDR tone curve
> ---
> .../media/platform/rockchip/rkisp1/rkisp1-params.c | 93 ++++++++++++++++++++
> .../media/platform/rockchip/rkisp1/rkisp1-regs.h | 99 ++++++----------------
> include/uapi/linux/rkisp1-config.h | 92 ++++++++++++++++++++
> 3 files changed, 210 insertions(+), 74 deletions(-)
>
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> index b28f4140c8a309a3231d44d825c6461e3ecb2a44..dc8e827e9464117877afe679611c528b4126172f 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-params.c
> @@ -5,6 +5,7 @@
> * Copyright (C) 2017 Rockchip Electronics Co., Ltd.
> */
>
> +#include <linux/bitfield.h>
> #include <linux/math.h>
> #include <linux/string.h>
>
> @@ -60,6 +61,7 @@ union rkisp1_ext_params_config {
> struct rkisp1_ext_params_afc_config afc;
> struct rkisp1_ext_params_compand_bls_config compand_bls;
> struct rkisp1_ext_params_compand_curve_config compand_curve;
> + struct rkisp1_ext_params_wdr_config wdr;
> };
>
> enum rkisp1_params_formats {
> @@ -1348,6 +1350,73 @@ rkisp1_compand_compress_config(struct rkisp1_params *params,
> arg->x);
> }
>
> +static void rkisp1_wdr_config(struct rkisp1_params *params,
> + const struct rkisp1_cif_isp_wdr_config *arg)
> +{
> + unsigned int i;
> + u32 value;
> +
> + value = rkisp1_read(params->rkisp1, RKISP1_CIF_ISP_WDR_CTRL)
> + & ~(RKISP1_CIF_ISP_WDR_USE_IREF |
> + RKISP1_CIF_ISP_WDR_COLOR_SPACE_SELECT |
> + RKISP1_CIF_ISP_WDR_CR_MAPPING_DISABLE |
> + RKISP1_CIF_ISP_WDR_USE_Y9_8 |
> + RKISP1_CIF_ISP_WDR_USE_RGB7_8 |
> + RKISP1_CIF_ISP_WDR_DISABLE_TRANSIENT |
> + RKISP1_CIF_ISP_WDR_RGB_FACTOR_MASK);
> +
> + /* Colorspace and chrominance mapping */
> + if (arg->use_rgb_colorspace)
> + value |= RKISP1_CIF_ISP_WDR_COLOR_SPACE_SELECT;
> +
> + if (!arg->use_rgb_colorspace && arg->bypass_chroma_mapping)
> + value |= RKISP1_CIF_ISP_WDR_CR_MAPPING_DISABLE;
> +
> + /* Illumination reference */
> + if (arg->use_iref) {
> + value |= RKISP1_CIF_ISP_WDR_USE_IREF;
> +
> + if (arg->iref_config.use_y9_8)
> + value |= RKISP1_CIF_ISP_WDR_USE_Y9_8;
> +
> + if (arg->iref_config.use_rgb7_8)
> + value |= RKISP1_CIF_ISP_WDR_USE_RGB7_8;
> +
> + if (arg->iref_config.disable_transient)
> + value |= RKISP1_CIF_ISP_WDR_DISABLE_TRANSIENT;
> +
> + value |= FIELD_PREP(RKISP1_CIF_ISP_WDR_RGB_FACTOR_MASK,
> + min(arg->iref_config.rgb_factor,
> + RKISP1_CIF_ISP_WDR_RGB_FACTOR_MAX));
> + }
> +
> + rkisp1_write(params->rkisp1, RKISP1_CIF_ISP_WDR_CTRL, value);
> +
> + /* RGB and Luminance offsets */
> + value = FIELD_PREP(RKISP1_CIF_ISP_WDR_RGB_OFFSET_MASK,
> + arg->rgb_offset)
> + | FIELD_PREP(RKISP1_CIF_ISP_WDR_LUM_OFFSET_MASK,
> + arg->luma_offset);
> + rkisp1_write(params->rkisp1, RKISP1_CIF_ISP_WDR_OFFSET, value);
> +
> + /* DeltaMin */
> + value = FIELD_PREP(RKISP1_CIF_ISP_WDR_DMIN_THRESH_MASK,
> + arg->dmin_thresh)
> + | FIELD_PREP(RKISP1_CIF_ISP_WDR_DMIN_STRENGTH_MASK,
> + min(arg->dmin_strength,
> + RKISP1_CIF_ISP_WDR_DMIN_STRENGTH_MAX));
> + rkisp1_write(params->rkisp1, RKISP1_CIF_ISP_WDR_DELTAMIN, value);
> +
> + /* Tone curve */
> + for (i = 0; i < RKISP1_CIF_ISP_WDR_CURVE_NUM_DY_REGS; i++)
> + rkisp1_write(params->rkisp1, RKISP1_CIF_ISP_WDR_TONECURVE(i),
> + arg->tone_curve.dY[i]);
> + for (i = 0; i < RKISP1_CIF_ISP_WDR_CURVE_NUM_COEFF; i++)
> + rkisp1_write(params->rkisp1, RKISP1_CIF_ISP_WDR_TONECURVE_YM(i),
> + arg->tone_curve.ym[i] &
> + RKISP1_CIF_ISP_WDR_TONE_CURVE_YM_MASK);
> +}
> +
> static void
> rkisp1_isp_isr_other_config(struct rkisp1_params *params,
> const struct rkisp1_params_cfg *new_params)
> @@ -2005,6 +2074,25 @@ static void rkisp1_ext_params_compand_compress(struct rkisp1_params *params,
> RKISP1_CIF_ISP_COMPAND_CTRL_COMPRESS_ENABLE);
> }
>
> +static void rkisp1_ext_params_wdr(struct rkisp1_params *params,
> + const union rkisp1_ext_params_config *block)
> +{
> + const struct rkisp1_ext_params_wdr_config *wdr = &block->wdr;
> +
> + if (wdr->header.flags & RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE) {
> + rkisp1_param_clear_bits(params, RKISP1_CIF_ISP_WDR_CTRL,
> + RKISP1_CIF_ISP_WDR_CTRL_ENABLE);
> + return;
> + }
> +
> + rkisp1_wdr_config(params, &wdr->config);
> +
> + if ((wdr->header.flags & RKISP1_EXT_PARAMS_FL_BLOCK_ENABLE) &&
> + !(params->enabled_blocks & BIT(wdr->header.type)))
> + rkisp1_param_set_bits(params, RKISP1_CIF_ISP_WDR_CTRL,
> + RKISP1_CIF_ISP_WDR_CTRL_ENABLE);
> +}
> +
> typedef void (*rkisp1_block_handler)(struct rkisp1_params *params,
> const union rkisp1_ext_params_config *config);
>
> @@ -2118,6 +2206,11 @@ static const struct rkisp1_ext_params_handler {
> .group = RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
> .features = RKISP1_FEATURE_COMPAND,
> },
> + [RKISP1_EXT_PARAMS_BLOCK_TYPE_WDR] = {
> + .size = sizeof(struct rkisp1_ext_params_wdr_config),
> + .handler = rkisp1_ext_params_wdr,
> + .group = RKISP1_EXT_PARAMS_BLOCK_GROUP_OTHERS,
> + },
> };
>
> static void rkisp1_ext_params_config(struct rkisp1_params *params,
> diff --git a/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h b/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
> index bf0260600a1923eebde6b5fe233daf7d427362dd..5b9de1a2c624f4ecaf451fa806bb4b1c24a2cb55 100644
> --- a/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
> +++ b/drivers/media/platform/rockchip/rkisp1/rkisp1-regs.h
> @@ -710,6 +710,27 @@
> #define RKISP1_CIF_ISP_COMPAND_CTRL_SOFT_RESET_FLAG BIT(2)
> #define RKISP1_CIF_ISP_COMPAND_CTRL_BLS_ENABLE BIT(3)
>
> +/* WDR */
> +/* ISP_WDR_CTRL */
> +#define RKISP1_CIF_ISP_WDR_CTRL_ENABLE BIT(0)
> +#define RKISP1_CIF_ISP_WDR_COLOR_SPACE_SELECT BIT(1)
> +#define RKISP1_CIF_ISP_WDR_CR_MAPPING_DISABLE BIT(2)
> +#define RKISP1_CIF_ISP_WDR_USE_IREF BIT(3)
> +#define RKISP1_CIF_ISP_WDR_USE_Y9_8 BIT(4)
> +#define RKISP1_CIF_ISP_WDR_USE_RGB7_8 BIT(5)
> +#define RKISP1_CIF_ISP_WDR_DISABLE_TRANSIENT BIT(6)
> +#define RKISP1_CIF_ISP_WDR_RGB_FACTOR_MASK GENMASK(11, 8)
> +#define RKISP1_CIF_ISP_WDR_RGB_FACTOR_MAX 8U
> +/* ISP_WDR_TONE_CURVE_YM */
> +#define RKISP1_CIF_ISP_WDR_TONE_CURVE_YM_MASK GENMASK(12, 0)
> +/* ISP_WDR_OFFSET */
> +#define RKISP1_CIF_ISP_WDR_RGB_OFFSET_MASK GENMASK(11, 0)
> +#define RKISP1_CIF_ISP_WDR_LUM_OFFSET_MASK GENMASK(27, 16)
> +/* ISP_WDR_DELTAMIN */
> +#define RKISP1_CIF_ISP_WDR_DMIN_THRESH_MASK GENMASK(11, 0)
> +#define RKISP1_CIF_ISP_WDR_DMIN_STRENGTH_MASK GENMASK(20, 16)
> +#define RKISP1_CIF_ISP_WDR_DMIN_STRENGTH_MAX 16U
> +
> /* =================================================================== */
> /* CIF Registers */
> /* =================================================================== */
> @@ -1302,82 +1323,12 @@
>
> #define RKISP1_CIF_ISP_WDR_BASE 0x00002a00
> #define RKISP1_CIF_ISP_WDR_CTRL (RKISP1_CIF_ISP_WDR_BASE + 0x00000000)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_1 (RKISP1_CIF_ISP_WDR_BASE + 0x00000004)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_2 (RKISP1_CIF_ISP_WDR_BASE + 0x00000008)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_3 (RKISP1_CIF_ISP_WDR_BASE + 0x0000000c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_4 (RKISP1_CIF_ISP_WDR_BASE + 0x00000010)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_0 (RKISP1_CIF_ISP_WDR_BASE + 0x00000014)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_1 (RKISP1_CIF_ISP_WDR_BASE + 0x00000018)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_2 (RKISP1_CIF_ISP_WDR_BASE + 0x0000001c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_3 (RKISP1_CIF_ISP_WDR_BASE + 0x00000020)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_4 (RKISP1_CIF_ISP_WDR_BASE + 0x00000024)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_5 (RKISP1_CIF_ISP_WDR_BASE + 0x00000028)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_6 (RKISP1_CIF_ISP_WDR_BASE + 0x0000002c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_7 (RKISP1_CIF_ISP_WDR_BASE + 0x00000030)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_8 (RKISP1_CIF_ISP_WDR_BASE + 0x00000034)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_9 (RKISP1_CIF_ISP_WDR_BASE + 0x00000038)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_10 (RKISP1_CIF_ISP_WDR_BASE + 0x0000003c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_11 (RKISP1_CIF_ISP_WDR_BASE + 0x00000040)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_12 (RKISP1_CIF_ISP_WDR_BASE + 0x00000044)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_13 (RKISP1_CIF_ISP_WDR_BASE + 0x00000048)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_14 (RKISP1_CIF_ISP_WDR_BASE + 0x0000004c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_15 (RKISP1_CIF_ISP_WDR_BASE + 0x00000050)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_16 (RKISP1_CIF_ISP_WDR_BASE + 0x00000054)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_17 (RKISP1_CIF_ISP_WDR_BASE + 0x00000058)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_18 (RKISP1_CIF_ISP_WDR_BASE + 0x0000005c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_19 (RKISP1_CIF_ISP_WDR_BASE + 0x00000060)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_20 (RKISP1_CIF_ISP_WDR_BASE + 0x00000064)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_21 (RKISP1_CIF_ISP_WDR_BASE + 0x00000068)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_22 (RKISP1_CIF_ISP_WDR_BASE + 0x0000006c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_23 (RKISP1_CIF_ISP_WDR_BASE + 0x00000070)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_24 (RKISP1_CIF_ISP_WDR_BASE + 0x00000074)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_25 (RKISP1_CIF_ISP_WDR_BASE + 0x00000078)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_26 (RKISP1_CIF_ISP_WDR_BASE + 0x0000007c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_27 (RKISP1_CIF_ISP_WDR_BASE + 0x00000080)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_28 (RKISP1_CIF_ISP_WDR_BASE + 0x00000084)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_29 (RKISP1_CIF_ISP_WDR_BASE + 0x00000088)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_30 (RKISP1_CIF_ISP_WDR_BASE + 0x0000008c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_31 (RKISP1_CIF_ISP_WDR_BASE + 0x00000090)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_32 (RKISP1_CIF_ISP_WDR_BASE + 0x00000094)
> +#define RKISP1_CIF_ISP_WDR_TONECURVE(n) (RKISP1_CIF_ISP_WDR_BASE + 0x00000004 + (n) * 4)
> +#define RKISP1_CIF_ISP_WDR_TONECURVE_YM(n) (RKISP1_CIF_ISP_WDR_BASE + 0x00000014 + (n) * 4)
> #define RKISP1_CIF_ISP_WDR_OFFSET (RKISP1_CIF_ISP_WDR_BASE + 0x00000098)
> #define RKISP1_CIF_ISP_WDR_DELTAMIN (RKISP1_CIF_ISP_WDR_BASE + 0x0000009c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_1_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000a0)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_2_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000a4)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_3_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000a8)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_4_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000ac)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_0_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000b0)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_1_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000b4)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_2_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000b8)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_3_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000bc)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_4_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000c0)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_5_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000c4)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_6_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000c8)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_7_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000cc)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_8_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000d0)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_9_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000d4)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_10_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000d8)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_11_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000dc)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_12_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000e0)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_13_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000e4)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_14_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000e8)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_15_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000ec)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_16_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000f0)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_17_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000f4)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_18_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000f8)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_19_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x000000fc)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_20_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000100)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_21_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000104)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_22_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000108)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_23_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x0000010c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_24_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000110)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_25_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000114)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_26_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000118)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_27_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x0000011c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_28_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000120)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_29_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000124)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_30_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000128)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_31_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x0000012c)
> -#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_32_SHD (RKISP1_CIF_ISP_WDR_BASE + 0x00000130)
> +#define RKISP1_CIF_ISP_WDR_TONECURVE_SHD(n) (RKISP1_CIF_ISP_WDR_BASE + 0x000000a0 + (n) * 4)
> +#define RKISP1_CIF_ISP_WDR_TONECURVE_YM_SHD(n) (RKISP1_CIF_ISP_WDR_BASE + 0x000000b0 + (n) * 4)
>
> #define RKISP1_CIF_ISP_HIST_BASE_V12 0x00002c00
> #define RKISP1_CIF_ISP_HIST_CTRL_V12 (RKISP1_CIF_ISP_HIST_BASE_V12 + 0x00000000)
> diff --git a/include/uapi/linux/rkisp1-config.h b/include/uapi/linux/rkisp1-config.h
> index 2d995f3c1ca37820a381f1917a10bf08a304d992..59335097c01372252b296d960b39336dfb5ec197 100644
> --- a/include/uapi/linux/rkisp1-config.h
> +++ b/include/uapi/linux/rkisp1-config.h
> @@ -169,6 +169,13 @@
> */
> #define RKISP1_CIF_ISP_COMPAND_NUM_POINTS 64
>
> +/*
> + * Wide Dynamic Range
> + */
> +#define RKISP1_CIF_ISP_WDR_CURVE_NUM_INTERV 32
> +#define RKISP1_CIF_ISP_WDR_CURVE_NUM_COEFF (RKISP1_CIF_ISP_WDR_CURVE_NUM_INTERV + 1)
> +#define RKISP1_CIF_ISP_WDR_CURVE_NUM_DY_REGS 4
> +
> /*
> * Measurement types
> */
> @@ -889,6 +896,72 @@ struct rkisp1_cif_isp_compand_curve_config {
> __u32 y[RKISP1_CIF_ISP_COMPAND_NUM_POINTS];
> };
>
> +/**
> + * struct rkisp1_cif_isp_wdr_tone_curve - Tone mapping curve definition for WDR.
> + *
> + * @dY: the dYn increments for horizontal (input) axis of the tone curve.
> + * each 3-bit dY value represents an increment of 2**(value+3).
> + * dY[0] bits 0:2 is increment dY1, bit 3 unused
> + * dY[0] bits 4:6 is increment dY2, bit 7 unused
> + * ...
> + * dY[0] bits 28:30 is increment dY8, bit 31 unused
> + * ... and so on till dY[3] bits 28:30 is increment dY32, bit 31 unused.
> + * @ym: the Ym values for the vertical (output) axis of the tone curve.
> + * each value is 13 bit.
> + */
> +struct rkisp1_cif_isp_wdr_tone_curve {
> + __u32 dY[RKISP1_CIF_ISP_WDR_CURVE_NUM_DY_REGS];
> + __u16 ym[RKISP1_CIF_ISP_WDR_CURVE_NUM_COEFF];
> +};
> +
> +/**
> + * struct rkisp1_cif_isp_wdr_iref_config - Illumination reference config for WDR.
> + *
> + * Use illumination reference value as described below, instead of only the
> + * luminance (Y) value for tone mapping and gain calculations:
> + * IRef = (rgb_factor * RGBMax_tr + (8 - rgb_factor) * Y)/8
> + *
> + * @rgb_factor: defines how much influence the RGBmax approach has in
> + * comparison to Y (valid values are 0..8).
> + * @use_y9_8: use Y*9/8 for maximum value calculation along with the
> + * default of R, G, B for noise reduction.
> + * @use_rgb7_8: decrease RGBMax by 7/8 for noise reduction.
> + * @disable_transient: disable transient calculation between Y and RGBY_max.
> + */
> +struct rkisp1_cif_isp_wdr_iref_config {
> + __u8 rgb_factor;
> + __u8 use_y9_8;
> + __u8 use_rgb7_8;
> + __u8 disable_transient;
> +};
> +
> +/**
> + * struct rkisp1_cif_isp_wdr_config - Configuration for wide dynamic range.
> + *
> + * @tone_curve: tone mapping curve.
> + * @iref_config: illumination reference configuration. (when use_iref is true)
> + * @rgb_offset: RGB offset value for RGB operation mode. (12 bits)
> + * @luma_offset: luminance offset value for RGB operation mode. (12 bits)
> + * @dmin_thresh: lower threshold for deltaMin value. (12 bits)
> + * @dmin_strength: strength factor for deltaMin. (valid range is 0x00..0x10)
> + * @use_rgb_colorspace: use RGB instead of luminance/chrominance colorspace.
> + * @bypass_chroma_mapping: disable chrominance mapping (only valid if
> + * use_rgb_colorspace = 0)
> + * @use_iref: use illumination reference instead of Y for tone mapping
> + * and gain calculations.
> + */
> +struct rkisp1_cif_isp_wdr_config {
> + struct rkisp1_cif_isp_wdr_tone_curve tone_curve;
> + struct rkisp1_cif_isp_wdr_iref_config iref_config;
> + __u16 rgb_offset;
> + __u16 luma_offset;
> + __u16 dmin_thresh;
> + __u8 dmin_strength;
> + __u8 use_rgb_colorspace;
> + __u8 bypass_chroma_mapping;
> + __u8 use_iref;
> +};
> +
> /*---------- PART2: Measurement Statistics ------------*/
>
> /**
> @@ -1059,6 +1132,7 @@ struct rkisp1_stat_buffer {
> * @RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_BLS: BLS in the compand block
> * @RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_EXPAND: Companding expand curve
> * @RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_COMPRESS: Companding compress curve
> + * @RKISP1_EXT_PARAMS_BLOCK_TYPE_WDR: Wide dynamic range
> */
> enum rkisp1_ext_params_block_type {
> RKISP1_EXT_PARAMS_BLOCK_TYPE_BLS,
> @@ -1081,6 +1155,7 @@ enum rkisp1_ext_params_block_type {
> RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_BLS,
> RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_EXPAND,
> RKISP1_EXT_PARAMS_BLOCK_TYPE_COMPAND_COMPRESS,
> + RKISP1_EXT_PARAMS_BLOCK_TYPE_WDR,
> };
>
> #define RKISP1_EXT_PARAMS_FL_BLOCK_DISABLE (1U << 0)
> @@ -1460,6 +1535,23 @@ struct rkisp1_ext_params_compand_curve_config {
> struct rkisp1_cif_isp_compand_curve_config config;
> } __attribute__((aligned(8)));
>
> +/**
> + * struct rkisp1_ext_params_wdr_config - RkISP1 extensible params
> + * Wide dynamic range config
> + *
> + * RkISP1 extensible parameters WDR block.
> + * Identified by :c:type:`RKISP1_EXT_PARAMS_BLOCK_TYPE_WDR`
> + *
> + * @header: The RkISP1 extensible parameters header, see
> + * :c:type:`rkisp1_ext_params_block_header`
> + * @config: WDR configuration, see
> + * :c:type:`rkisp1_cif_isp_wdr_config`
> + */
> +struct rkisp1_ext_params_wdr_config {
> + struct rkisp1_ext_params_block_header header;
> + struct rkisp1_cif_isp_wdr_config config;
> +} __attribute__((aligned(8)));
> +
> /*
> * The rkisp1_ext_params_compand_curve_config structure is counted twice as it
> * is used for both the COMPAND_EXPAND and COMPAND_COMPRESS block types.
>
> --
> 2.49.0
>
>
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