[libcamera-devel] [PATCH] android: nautilus: Add camera HAL configuration

[Hirokazu Honda]

Hi Umang,

On Wed, May 26, 2021 at 6:21 PM Umang Jain <umang.jain at ideasonboard.com>
wrote:

> Hi Jacopo
>
> On 5/26/21 1:35 PM, Jacopo Mondi wrote:
> > Hi Umang,
> >
> > On Wed, May 26, 2021 at 12:45:42PM +0530, Umang Jain wrote:
> >> nautilus has two internal cameras, one UVC and one for the IPU3.
> >> However, libcamera assumes all UVC cameras as 'external' hence, mark
> >> the location of UVC camera in HAL configuration as 'external' too.
> >>
> >> Note that the presence of UVC camera in camera HAL will complain:
> >>
> >>> ERROR HAL camera_device.cpp:701
> '\_SB_.PCI0.XHCI.RHUB.HS09-9:1.0-04f2:b647':
> >>    Failed to map mandatory Android format IMPLEMENTATION_DEFINED
> (0x00000022): aborting
> >>> ERROR HAL camera_hal_manager.cpp:153 Failed to initialize camera:
> >>    \_SB_.PCI0.XHCI.RHUB.HS09-9:1.0-04f2:b647
> >>
> >> This is related to a known issue of UVC cameras on HAL which do not
> >> provide NV12 by default.
> > Does it work without configuration file support ?
> No, it won't, since it's UVC. And cannot work until there's a
> format-convertor in place that can convert the stream to NV12 provided
> by that camera, I suppose.
>

It is time that we need a JPEG decoder in a post processing pipeline like a
JPEG encoder.
-Hiro

>
> > Thanks
> >     j
> >
> >> Also, if we don't mention the UVC camera in the config:
> >>
> >>> ERROR HALConfig camera_hal_config.cpp:393 Camera
> >>    '\_SB_.PCI0.XHCI.RHUB.HS09-9:1.0-04f2:b647' not described in the HAL
> >>    configuration file
> >>> ERROR HAL camera_device.cpp:701
> '\_SB_.PCI0.XHCI.RHUB.HS09-9:1.0-04f2:b647':
> >>    Failed to map mandatory Android format IMPLEMENTATION_DEFINED
> (0x00000022): aborting
> >>> ERROR HAL camera_hal_manager.cpp:153 Failed to initialize camera:
> >>    \_SB_.PCI0.XHCI.RHUB.HS09-9:1.0-04f2:b647
> >>
> >> Signed-off-by: Umang Jain <umang.jain at ideasonboard.com>
> >> ---
> >>   src/android/data/nautilus/camera_hal.yaml | 8 ++++++++
> >>   1 file changed, 8 insertions(+)
> >>   create mode 100644 src/android/data/nautilus/camera_hal.yaml
> >>
> >> diff --git a/src/android/data/nautilus/camera_hal.yaml
> b/src/android/data/nautilus/camera_hal.yaml
> >> new file mode 100644
> >> index 00000000..f2d31e1c
> >> --- /dev/null
> >> +++ b/src/android/data/nautilus/camera_hal.yaml
> >> @@ -0,0 +1,8 @@
> >> +cameras:
> >> +  "\\_SB_.PCI0.I2C2.CAM0":
> >> +    location: back
> >> +    rotation: 0
> >> +
> >> +  "\\_SB_.PCI0.XHCI.RHUB.HS09-9:1.0-04f2:b647":
> >> +    location: external
> >> +    rotation: 0
> >> --
> >> 2.26.2
> >>
>
>
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