[libcamera-devel,3/3] libcamera: ipa: raspberrypi: Add support for ov9281 sensor
diff mbox series

Message ID 20210615105139.16171-4-david.plowman@raspberrypi.com
State Superseded
Headers show
Series
  • Support monochrome raw sensors
Related show

Commit Message

David Plowman June 15, 2021, 10:51 a.m. UTC 
The necessary tuning file and CamHelper is added for the ov9281 sensor
(which the driver names as the "mov9281").

The ov9281 is a 1280x800 monochrome global shutter sensor. To enable
it, please add

dtoverlay=ov9281

to the /boot/config.txt file and reboot the Pi.

Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
---
 src/ipa/raspberrypi/cam_helper_mov9281.cpp | 108 +++++++++++++++++++++
 src/ipa/raspberrypi/data/meson.build       |   1 +
 src/ipa/raspberrypi/data/mov9281.json      |  92 ++++++++++++++++++
 src/ipa/raspberrypi/meson.build            |   1 +
 4 files changed, 202 insertions(+)
 create mode 100644 src/ipa/raspberrypi/cam_helper_mov9281.cpp
 create mode 100644 src/ipa/raspberrypi/data/mov9281.json

Comments

Naushir Patuck June 15, 2021, 1:38 p.m. UTC | #1 
Hi David,

New sensors, very nice!

On Tue, 15 Jun 2021 at 11:51, David Plowman <david.plowman@raspberrypi.com>
wrote:

> The necessary tuning file and CamHelper is added for the ov9281 sensor
> (which the driver names as the "mov9281").
>
> The ov9281 is a 1280x800 monochrome global shutter sensor. To enable
> it, please add
>
> dtoverlay=ov9281
>
> to the /boot/config.txt file and reboot the Pi.
>
> Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
> ---
>  src/ipa/raspberrypi/cam_helper_mov9281.cpp | 108 +++++++++++++++++++++
>  src/ipa/raspberrypi/data/meson.build       |   1 +
>  src/ipa/raspberrypi/data/mov9281.json      |  92 ++++++++++++++++++
>  src/ipa/raspberrypi/meson.build            |   1 +
>  4 files changed, 202 insertions(+)
>  create mode 100644 src/ipa/raspberrypi/cam_helper_mov9281.cpp
>  create mode 100644 src/ipa/raspberrypi/data/mov9281.json
>
> diff --git a/src/ipa/raspberrypi/cam_helper_mov9281.cpp
> b/src/ipa/raspberrypi/cam_helper_mov9281.cpp
> new file mode 100644
> index 00000000..5645c73a
> --- /dev/null
> +++ b/src/ipa/raspberrypi/cam_helper_mov9281.cpp
> @@ -0,0 +1,108 @@
> +/* SPDX-License-Identifier: BSD-2-Clause */
> +/*
> + * Copyright (C) 2019, Raspberry Pi (Trading) Limited
> + *
> + * cam_helper_mov9281.cpp - camera information for ov9281 sensor
> + */
> +
> +#include <assert.h>
> +
> +#include "cam_helper.hpp"
> +
> +using namespace RPiController;
> +
> +class CamHelperOv9281 : public CamHelper
> +{
> +public:
> +       CamHelperOv9281();
> +       uint32_t GainCode(double gain) const override;
> +       double Gain(uint32_t gain_code) const override;
> +       void GetDelays(int &exposure_delay, int &gain_delay,
> +                      int &vblank_delay) const override;
> +       unsigned int HideFramesStartup() const override;
> +       unsigned int HideFramesModeSwitch() const override;
> +       unsigned int MistrustFramesStartup() const override;
> +       unsigned int MistrustFramesModeSwitch() const override;
> +
> +private:
> +       /*
> +        * Smallest difference between the frame length and integration
> time,
> +        * in units of lines.
> +        */
> +       static constexpr int frameIntegrationDiff = 4;
> +};
> +
> +/*
> + * OV9281 doesn't output metadata, so we have to use the "unicam parser"
> which
> + * works by counting frames.
> + */
> +
> +CamHelperOv9281::CamHelperOv9281()
> +       : CamHelper(nullptr, frameIntegrationDiff)
> +{
> +}
> +
> +uint32_t CamHelperOv9281::GainCode(double gain) const
> +{
> +       return static_cast<uint32_t>(gain * 16.0);
> +}
> +
> +double CamHelperOv9281::Gain(uint32_t gain_code) const
> +{
> +       return static_cast<double>(gain_code) / 16.0;
> +}
> +
> +void CamHelperOv9281::GetDelays(int &exposure_delay, int &gain_delay,
> +                               int &vblank_delay) const
> +{
> +       /*
> +        * We run this sensor in a mode where the gain delay is bumped up
> to
> +        * 2. It seems to be the only way to make the delays "predictable".
> +        */
> +       exposure_delay = 2;
> +       gain_delay = 2;
> +       vblank_delay = 2;
> +}
> +
> +unsigned int CamHelperOv9281::HideFramesStartup() const
> +{
> +       /*
> +        * On startup, we get a couple of under-exposed frames which
> +        * we don't want shown.
> +        */
> +       return 2;
> +}
> +
> +unsigned int CamHelperOv9281::HideFramesModeSwitch() const
> +{
> +       /*
> +        * After a mode switch, we get a couple of under-exposed frames
> which
> +        * we don't want shown.
> +        */
> +       return 2;
> +}
> +
> +unsigned int CamHelperOv9281::MistrustFramesStartup() const
> +{
> +       /*
> +        * First couple of frames are under-exposed and are no good for
> control
> +        * algos.
> +        */
> +       return 2;
> +}
> +
> +unsigned int CamHelperOv9281::MistrustFramesModeSwitch() const
> +{
> +       /*
> +        * First couple of frames are under-exposed even after a simple
> +        * mode switch, and are no good for control algos.
> +        */
> +       return 2;
> +}
>

Perhaps we need to see if these numbers can be reduced or (ideally) set to
0?
Other than that, looks good!

Reviewed-by: Naushir Patuck <naush@raspberrpyi.com>


> +
> +static CamHelper *Create()
> +{
> +       return new CamHelperOv9281();
> +}
> +
> +static RegisterCamHelper reg("mov9281", &Create);
> diff --git a/src/ipa/raspberrypi/data/meson.build
> b/src/ipa/raspberrypi/data/meson.build
> index 92ad3272..f8baab6d 100644
> --- a/src/ipa/raspberrypi/data/meson.build
> +++ b/src/ipa/raspberrypi/data/meson.build
> @@ -4,6 +4,7 @@ conf_files = files([
>      'imx219.json',
>      'imx290.json',
>      'imx477.json',
> +    'mov9281.json',
>      'ov5647.json',
>      'se327m12.json',
>      'uncalibrated.json',
> diff --git a/src/ipa/raspberrypi/data/mov9281.json
> b/src/ipa/raspberrypi/data/mov9281.json
> new file mode 100644
> index 00000000..ecd262be
> --- /dev/null
> +++ b/src/ipa/raspberrypi/data/mov9281.json
> @@ -0,0 +1,92 @@
> +{
> +    "rpi.black_level":
> +    {
> +        "black_level": 4096
> +    },
> +    "rpi.lux":
> +    {
> +        "reference_shutter_speed": 2000,
> +        "reference_gain": 1.0,
> +        "reference_aperture": 1.0,
> +        "reference_lux": 800,
> +        "reference_Y": 20000
> +    },
> +    "rpi.noise":
> +    {
> +        "reference_constant": 0,
> +        "reference_slope": 2.5
> +    },
> +    "rpi.sdn":
> +    {
> +    },
> +    "rpi.agc":
> +    {
> +        "metering_modes":
> +        {
> +            "centre-weighted": {
> +                "weights": [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0]
> +            }
> +        },
> +        "exposure_modes":
> +        {
> +            "normal":
> +            {
> +                "shutter": [ 100, 15000, 30000, 60000, 120000 ],
> +                "gain":    [ 1.0, 2.0,   3.0,   4.0,   6.0    ]
> +            }
> +        },
> +        "constraint_modes":
> +        {
> +            "normal":
> +            [
> +                { "bound": "LOWER", "q_lo": 0.98, "q_hi": 1.0,
> "y_target": [ 0, 0.4, 1000, 0.4 ] }
> +            ]
> +        },
> +        "y_target": [ 0, 0.16, 1000, 0.165, 10000, 0.17 ]
> +    },
> +    "rpi.alsc":
> +    {
> +        "n_iter": 0,
> +        "luminance_strength": 1.0,
> +        "corner_strength": 1.5
> +    },
> +    "rpi.contrast":
> +    {
> +        "ce_enable": 0,
> +        "gamma_curve": [
> +            0,     0,
> +            1024,  5040,
> +            2048,  9338,
> +            3072,  12356,
> +            4096,  15312,
> +            5120,  18051,
> +            6144,  20790,
> +            7168,  23193,
> +            8192,  25744,
> +            9216,  27942,
> +            10240, 30035,
> +            11264, 32005,
> +            12288, 33975,
> +            13312, 35815,
> +            14336, 37600,
> +            15360, 39168,
> +            16384, 40642,
> +            18432, 43379,
> +            20480, 45749,
> +            22528, 47753,
> +            24576, 49621,
> +            26624, 51253,
> +            28672, 52698,
> +            30720, 53796,
> +            32768, 54876,
> +            36864, 57012,
> +            40960, 58656,
> +            45056, 59954,
> +            49152, 61183,
> +            53248, 62355,
> +            57344, 63419,
> +            61440, 64476,
> +            65535, 65535
> +        ]
> +    }
> +}
> diff --git a/src/ipa/raspberrypi/meson.build
> b/src/ipa/raspberrypi/meson.build
> index d1397a32..e384c7ce 100644
> --- a/src/ipa/raspberrypi/meson.build
> +++ b/src/ipa/raspberrypi/meson.build
> @@ -22,6 +22,7 @@ rpi_ipa_sources = files([
>      'cam_helper_imx219.cpp',
>      'cam_helper_imx290.cpp',
>      'cam_helper_imx477.cpp',
> +    'cam_helper_mov9281.cpp',
>      'controller/controller.cpp',
>      'controller/histogram.cpp',
>      'controller/algorithm.cpp',
> --
> 2.20.1
>
>
David Plowman June 15, 2021, 2:26 p.m. UTC | #2 
Hi Naush

Thanks for prompting me to look more closely at this.

On Tue, 15 Jun 2021 at 14:38, Naushir Patuck <naush@raspberrypi.com> wrote:
>
> Hi David,
>
> New sensors, very nice!
>
> On Tue, 15 Jun 2021 at 11:51, David Plowman <david.plowman@raspberrypi.com> wrote:
>>
>> The necessary tuning file and CamHelper is added for the ov9281 sensor
>> (which the driver names as the "mov9281").
>>
>> The ov9281 is a 1280x800 monochrome global shutter sensor. To enable
>> it, please add
>>
>> dtoverlay=ov9281
>>
>> to the /boot/config.txt file and reboot the Pi.
>>
>> Signed-off-by: David Plowman <david.plowman@raspberrypi.com>
>> ---
>>  src/ipa/raspberrypi/cam_helper_mov9281.cpp | 108 +++++++++++++++++++++
>>  src/ipa/raspberrypi/data/meson.build       |   1 +
>>  src/ipa/raspberrypi/data/mov9281.json      |  92 ++++++++++++++++++
>>  src/ipa/raspberrypi/meson.build            |   1 +
>>  4 files changed, 202 insertions(+)
>>  create mode 100644 src/ipa/raspberrypi/cam_helper_mov9281.cpp
>>  create mode 100644 src/ipa/raspberrypi/data/mov9281.json
>>
>> diff --git a/src/ipa/raspberrypi/cam_helper_mov9281.cpp b/src/ipa/raspberrypi/cam_helper_mov9281.cpp
>> new file mode 100644
>> index 00000000..5645c73a
>> --- /dev/null
>> +++ b/src/ipa/raspberrypi/cam_helper_mov9281.cpp
>> @@ -0,0 +1,108 @@
>> +/* SPDX-License-Identifier: BSD-2-Clause */
>> +/*
>> + * Copyright (C) 2019, Raspberry Pi (Trading) Limited
>> + *
>> + * cam_helper_mov9281.cpp - camera information for ov9281 sensor
>> + */
>> +
>> +#include <assert.h>
>> +
>> +#include "cam_helper.hpp"
>> +
>> +using namespace RPiController;
>> +
>> +class CamHelperOv9281 : public CamHelper
>> +{
>> +public:
>> +       CamHelperOv9281();
>> +       uint32_t GainCode(double gain) const override;
>> +       double Gain(uint32_t gain_code) const override;
>> +       void GetDelays(int &exposure_delay, int &gain_delay,
>> +                      int &vblank_delay) const override;
>> +       unsigned int HideFramesStartup() const override;
>> +       unsigned int HideFramesModeSwitch() const override;
>> +       unsigned int MistrustFramesStartup() const override;
>> +       unsigned int MistrustFramesModeSwitch() const override;
>> +
>> +private:
>> +       /*
>> +        * Smallest difference between the frame length and integration time,
>> +        * in units of lines.
>> +        */
>> +       static constexpr int frameIntegrationDiff = 4;
>> +};
>> +
>> +/*
>> + * OV9281 doesn't output metadata, so we have to use the "unicam parser" which
>> + * works by counting frames.
>> + */
>> +
>> +CamHelperOv9281::CamHelperOv9281()
>> +       : CamHelper(nullptr, frameIntegrationDiff)
>> +{
>> +}
>> +
>> +uint32_t CamHelperOv9281::GainCode(double gain) const
>> +{
>> +       return static_cast<uint32_t>(gain * 16.0);
>> +}
>> +
>> +double CamHelperOv9281::Gain(uint32_t gain_code) const
>> +{
>> +       return static_cast<double>(gain_code) / 16.0;
>> +}
>> +
>> +void CamHelperOv9281::GetDelays(int &exposure_delay, int &gain_delay,
>> +                               int &vblank_delay) const
>> +{
>> +       /*
>> +        * We run this sensor in a mode where the gain delay is bumped up to
>> +        * 2. It seems to be the only way to make the delays "predictable".
>> +        */
>> +       exposure_delay = 2;
>> +       gain_delay = 2;
>> +       vblank_delay = 2;
>> +}
>> +
>> +unsigned int CamHelperOv9281::HideFramesStartup() const
>> +{
>> +       /*
>> +        * On startup, we get a couple of under-exposed frames which
>> +        * we don't want shown.
>> +        */
>> +       return 2;
>> +}
>> +
>> +unsigned int CamHelperOv9281::HideFramesModeSwitch() const
>> +{
>> +       /*
>> +        * After a mode switch, we get a couple of under-exposed frames which
>> +        * we don't want shown.
>> +        */
>> +       return 2;
>> +}
>> +
>> +unsigned int CamHelperOv9281::MistrustFramesStartup() const
>> +{
>> +       /*
>> +        * First couple of frames are under-exposed and are no good for control
>> +        * algos.
>> +        */
>> +       return 2;
>> +}
>> +
>> +unsigned int CamHelperOv9281::MistrustFramesModeSwitch() const
>> +{
>> +       /*
>> +        * First couple of frames are under-exposed even after a simple
>> +        * mode switch, and are no good for control algos.
>> +        */
>> +       return 2;
>> +}
>
>
> Perhaps we need to see if these numbers can be reduced or (ideally) set to 0?
> Other than that, looks good!

Yes, it seems that our default implementation values are actually OK,
so I'll roll that into a v2 of this set once we get that far.

Thanks
David

>
> Reviewed-by: Naushir Patuck <naush@raspberrpyi.com>
>
>>
>> +
>> +static CamHelper *Create()
>> +{
>> +       return new CamHelperOv9281();
>> +}
>> +
>> +static RegisterCamHelper reg("mov9281", &Create);
>> diff --git a/src/ipa/raspberrypi/data/meson.build b/src/ipa/raspberrypi/data/meson.build
>> index 92ad3272..f8baab6d 100644
>> --- a/src/ipa/raspberrypi/data/meson.build
>> +++ b/src/ipa/raspberrypi/data/meson.build
>> @@ -4,6 +4,7 @@ conf_files = files([
>>      'imx219.json',
>>      'imx290.json',
>>      'imx477.json',
>> +    'mov9281.json',
>>      'ov5647.json',
>>      'se327m12.json',
>>      'uncalibrated.json',
>> diff --git a/src/ipa/raspberrypi/data/mov9281.json b/src/ipa/raspberrypi/data/mov9281.json
>> new file mode 100644
>> index 00000000..ecd262be
>> --- /dev/null
>> +++ b/src/ipa/raspberrypi/data/mov9281.json
>> @@ -0,0 +1,92 @@
>> +{
>> +    "rpi.black_level":
>> +    {
>> +        "black_level": 4096
>> +    },
>> +    "rpi.lux":
>> +    {
>> +        "reference_shutter_speed": 2000,
>> +        "reference_gain": 1.0,
>> +        "reference_aperture": 1.0,
>> +        "reference_lux": 800,
>> +        "reference_Y": 20000
>> +    },
>> +    "rpi.noise":
>> +    {
>> +        "reference_constant": 0,
>> +        "reference_slope": 2.5
>> +    },
>> +    "rpi.sdn":
>> +    {
>> +    },
>> +    "rpi.agc":
>> +    {
>> +        "metering_modes":
>> +        {
>> +            "centre-weighted": {
>> +                "weights": [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0]
>> +            }
>> +        },
>> +        "exposure_modes":
>> +        {
>> +            "normal":
>> +            {
>> +                "shutter": [ 100, 15000, 30000, 60000, 120000 ],
>> +                "gain":    [ 1.0, 2.0,   3.0,   4.0,   6.0    ]
>> +            }
>> +        },
>> +        "constraint_modes":
>> +        {
>> +            "normal":
>> +            [
>> +                { "bound": "LOWER", "q_lo": 0.98, "q_hi": 1.0, "y_target": [ 0, 0.4, 1000, 0.4 ] }
>> +            ]
>> +        },
>> +        "y_target": [ 0, 0.16, 1000, 0.165, 10000, 0.17 ]
>> +    },
>> +    "rpi.alsc":
>> +    {
>> +        "n_iter": 0,
>> +        "luminance_strength": 1.0,
>> +        "corner_strength": 1.5
>> +    },
>> +    "rpi.contrast":
>> +    {
>> +        "ce_enable": 0,
>> +        "gamma_curve": [
>> +            0,     0,
>> +            1024,  5040,
>> +            2048,  9338,
>> +            3072,  12356,
>> +            4096,  15312,
>> +            5120,  18051,
>> +            6144,  20790,
>> +            7168,  23193,
>> +            8192,  25744,
>> +            9216,  27942,
>> +            10240, 30035,
>> +            11264, 32005,
>> +            12288, 33975,
>> +            13312, 35815,
>> +            14336, 37600,
>> +            15360, 39168,
>> +            16384, 40642,
>> +            18432, 43379,
>> +            20480, 45749,
>> +            22528, 47753,
>> +            24576, 49621,
>> +            26624, 51253,
>> +            28672, 52698,
>> +            30720, 53796,
>> +            32768, 54876,
>> +            36864, 57012,
>> +            40960, 58656,
>> +            45056, 59954,
>> +            49152, 61183,
>> +            53248, 62355,
>> +            57344, 63419,
>> +            61440, 64476,
>> +            65535, 65535
>> +        ]
>> +    }
>> +}
>> diff --git a/src/ipa/raspberrypi/meson.build b/src/ipa/raspberrypi/meson.build
>> index d1397a32..e384c7ce 100644
>> --- a/src/ipa/raspberrypi/meson.build
>> +++ b/src/ipa/raspberrypi/meson.build
>> @@ -22,6 +22,7 @@ rpi_ipa_sources = files([
>>      'cam_helper_imx219.cpp',
>>      'cam_helper_imx290.cpp',
>>      'cam_helper_imx477.cpp',
>> +    'cam_helper_mov9281.cpp',
>>      'controller/controller.cpp',
>>      'controller/histogram.cpp',
>>      'controller/algorithm.cpp',
>> --
>> 2.20.1
>>

Patch
diff mbox series 

diff --git a/src/ipa/raspberrypi/cam_helper_mov9281.cpp b/src/ipa/raspberrypi/cam_helper_mov9281.cpp
new file mode 100644
index 00000000..5645c73a
--- /dev/null
+++ b/src/ipa/raspberrypi/cam_helper_mov9281.cpp
@@ -0,0 +1,108 @@ 
+/* SPDX-License-Identifier: BSD-2-Clause */
+/*
+ * Copyright (C) 2019, Raspberry Pi (Trading) Limited
+ *
+ * cam_helper_mov9281.cpp - camera information for ov9281 sensor
+ */
+
+#include <assert.h>
+
+#include "cam_helper.hpp"
+
+using namespace RPiController;
+
+class CamHelperOv9281 : public CamHelper
+{
+public:
+	CamHelperOv9281();
+	uint32_t GainCode(double gain) const override;
+	double Gain(uint32_t gain_code) const override;
+	void GetDelays(int &exposure_delay, int &gain_delay,
+		       int &vblank_delay) const override;
+	unsigned int HideFramesStartup() const override;
+	unsigned int HideFramesModeSwitch() const override;
+	unsigned int MistrustFramesStartup() const override;
+	unsigned int MistrustFramesModeSwitch() const override;
+
+private:
+	/*
+	 * Smallest difference between the frame length and integration time,
+	 * in units of lines.
+	 */
+	static constexpr int frameIntegrationDiff = 4;
+};
+
+/*
+ * OV9281 doesn't output metadata, so we have to use the "unicam parser" which
+ * works by counting frames.
+ */
+
+CamHelperOv9281::CamHelperOv9281()
+	: CamHelper(nullptr, frameIntegrationDiff)
+{
+}
+
+uint32_t CamHelperOv9281::GainCode(double gain) const
+{
+	return static_cast<uint32_t>(gain * 16.0);
+}
+
+double CamHelperOv9281::Gain(uint32_t gain_code) const
+{
+	return static_cast<double>(gain_code) / 16.0;
+}
+
+void CamHelperOv9281::GetDelays(int &exposure_delay, int &gain_delay,
+				int &vblank_delay) const
+{
+	/*
+	 * We run this sensor in a mode where the gain delay is bumped up to
+	 * 2. It seems to be the only way to make the delays "predictable".
+	 */
+	exposure_delay = 2;
+	gain_delay = 2;
+	vblank_delay = 2;
+}
+
+unsigned int CamHelperOv9281::HideFramesStartup() const
+{
+	/*
+	 * On startup, we get a couple of under-exposed frames which
+	 * we don't want shown.
+	 */
+	return 2;
+}
+
+unsigned int CamHelperOv9281::HideFramesModeSwitch() const
+{
+	/*
+	 * After a mode switch, we get a couple of under-exposed frames which
+	 * we don't want shown.
+	 */
+	return 2;
+}
+
+unsigned int CamHelperOv9281::MistrustFramesStartup() const
+{
+	/*
+	 * First couple of frames are under-exposed and are no good for control
+	 * algos.
+	 */
+	return 2;
+}
+
+unsigned int CamHelperOv9281::MistrustFramesModeSwitch() const
+{
+	/*
+	 * First couple of frames are under-exposed even after a simple
+	 * mode switch, and are no good for control algos.
+	 */
+	return 2;
+}
+
+static CamHelper *Create()
+{
+	return new CamHelperOv9281();
+}
+
+static RegisterCamHelper reg("mov9281", &Create);
diff --git a/src/ipa/raspberrypi/data/meson.build b/src/ipa/raspberrypi/data/meson.build
index 92ad3272..f8baab6d 100644
--- a/src/ipa/raspberrypi/data/meson.build
+++ b/src/ipa/raspberrypi/data/meson.build
@@ -4,6 +4,7 @@  conf_files = files([
     'imx219.json',
     'imx290.json',
     'imx477.json',
+    'mov9281.json',
     'ov5647.json',
     'se327m12.json',
     'uncalibrated.json',
diff --git a/src/ipa/raspberrypi/data/mov9281.json b/src/ipa/raspberrypi/data/mov9281.json
new file mode 100644
index 00000000..ecd262be
--- /dev/null
+++ b/src/ipa/raspberrypi/data/mov9281.json
@@ -0,0 +1,92 @@ 
+{
+    "rpi.black_level":
+    {
+        "black_level": 4096
+    },
+    "rpi.lux":
+    {
+        "reference_shutter_speed": 2000,
+        "reference_gain": 1.0,
+        "reference_aperture": 1.0,
+        "reference_lux": 800,
+        "reference_Y": 20000
+    },
+    "rpi.noise":
+    {
+        "reference_constant": 0,
+        "reference_slope": 2.5
+    },
+    "rpi.sdn":
+    {
+    },
+    "rpi.agc":
+    {
+        "metering_modes":
+        {
+            "centre-weighted": {
+                "weights": [4, 4, 4, 2, 2, 2, 2, 1, 1, 1, 1, 0, 0, 0, 0]
+            }
+        },
+        "exposure_modes":
+        {
+            "normal":
+            {
+                "shutter": [ 100, 15000, 30000, 60000, 120000 ],
+                "gain":    [ 1.0, 2.0,   3.0,   4.0,   6.0    ]
+            }
+        },
+        "constraint_modes":
+        {
+            "normal":
+            [
+                { "bound": "LOWER", "q_lo": 0.98, "q_hi": 1.0, "y_target": [ 0, 0.4, 1000, 0.4 ] }
+            ]
+        },
+        "y_target": [ 0, 0.16, 1000, 0.165, 10000, 0.17 ]
+    },
+    "rpi.alsc":
+    {
+        "n_iter": 0,
+        "luminance_strength": 1.0,
+        "corner_strength": 1.5
+    },
+    "rpi.contrast":
+    {
+        "ce_enable": 0,
+        "gamma_curve": [
+            0,     0,
+            1024,  5040,
+            2048,  9338,
+            3072,  12356,
+            4096,  15312,
+            5120,  18051,
+            6144,  20790,
+            7168,  23193,
+            8192,  25744,
+            9216,  27942,
+            10240, 30035,
+            11264, 32005,
+            12288, 33975,
+            13312, 35815,
+            14336, 37600,
+            15360, 39168,
+            16384, 40642,
+            18432, 43379,
+            20480, 45749,
+            22528, 47753,
+            24576, 49621,
+            26624, 51253,
+            28672, 52698,
+            30720, 53796,
+            32768, 54876,
+            36864, 57012,
+            40960, 58656,
+            45056, 59954,
+            49152, 61183,
+            53248, 62355,
+            57344, 63419,
+            61440, 64476,
+            65535, 65535
+        ]
+    }
+}
diff --git a/src/ipa/raspberrypi/meson.build b/src/ipa/raspberrypi/meson.build
index d1397a32..e384c7ce 100644
--- a/src/ipa/raspberrypi/meson.build
+++ b/src/ipa/raspberrypi/meson.build
@@ -22,6 +22,7 @@  rpi_ipa_sources = files([
     'cam_helper_imx219.cpp',
     'cam_helper_imx290.cpp',
     'cam_helper_imx477.cpp',
+    'cam_helper_mov9281.cpp',
     'controller/controller.cpp',
     'controller/histogram.cpp',
     'controller/algorithm.cpp',