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libcamera: Enabled camera overlays define based

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Added imx219.dtbo file in the overlays, and added dtoverlay in
/boot/config.txt define based.

To enable Sony Raspberry pi camera imx219 sensor, need to set
the variable RASPBERRYPI_CAMERA_V2 as 1.

In future, we can add any camera overlays here to support and
use them with libcamera.

Signed-off-by: Madhavan Krishnan <madhavan.krishnan@linaro.org>
(cherry picked from commit b70c7b9021)
Signed-off-by: Ricardo Salveti <ricardo@foundries.io>
This commit is contained in:
Madhavan Krishnan 2020-10-16 09:31:28 +02:00 committed by Andrei Gherzan
parent 09a3c11696
commit c448bcd074
4 changed files with 23 additions and 1 deletions
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1
conf/machine/include/rpi-base.inc
View File

@ -42,6 +42,7 @@ RPI_KERNEL_DEVICETREE_OVERLAYS ?= " \
overlays/w1-gpio.dtbo \
overlays/gpio-ir.dtbo \
overlays/gpio-ir-tx.dtbo \
overlays/imx219.dtbo \
"
RPI_KERNEL_DEVICETREE ?= " \

14
docs/extra-build-config.md
View File

@ -326,3 +326,17 @@ option:
# Raspberry Pi 7\" display/touch screen \n \
lcd_rotate=2 \n \
'
## Enable Raspberrypi Camera V2
RaspberryPi does not have the unicam device ( RaspberryPi Camera ) enabled by default.
Because this unicam device ( bcm2835-unicam ) as of now is used by libcamera opensource.
So we have to explicitly set in local.conf.
RASPBERRYPI_CAMERA_V2 = "1"
This will add the device tree overlays imx219 ( RaspberryPi Camera sensor V2 driver ) to config.txt.
Also, this will enable adding Contiguous Memory Allocation value in the cmdline.txt.
Ref.:
* <https://github.com/raspberrypi/documentation/blob/master/linux/software/libcamera/README.md>
* <https://www.raspberrypi.org/blog/an-open-source-camera-stack-for-raspberry-pi-using-libcamera/>

6
recipes-bsp/bootfiles/rpi-config_git.bb
View File

@ -178,6 +178,12 @@ do_deploy() {
echo "dtoverlay=${VC4DTBO}" >> ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}/config.txt
fi
# Choose Camera Sensor to be used, default imx219 sensor
if [ "${RASPBERRYPI_CAMERA_V2}" = "1" ]; then
echo "# Enable Sony RaspberryPi Camera" >> ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}/config.txt
echo "dtoverlay=imx219" >> ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}/config.txt
fi
# Waveshare "C" 1024x600 7" Rev2.1 IPS capacitive touch (http://www.waveshare.com/7inch-HDMI-LCD-C.htm)
if [ "${WAVESHARE_1024X600_C_2_1}" = "1" ]; then
echo "# Waveshare \"C\" 1024x600 7\" Rev2.1 IPS capacitive touch screen" >> ${DEPLOYDIR}/${BOOTFILES_DIR_NAME}/config.txt

3
recipes-kernel/linux/linux-raspberrypi.inc
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@ -27,7 +27,8 @@ LINUX_VERSION_EXTENSION ?= ""
# CMDLINE for raspberrypi
SERIAL = "${@oe.utils.conditional("ENABLE_UART", "1", "console=serial0,115200", "", d)}"
CMDLINE ?= "dwc_otg.lpm_enable=0 ${SERIAL} root=/dev/mmcblk0p2 rootfstype=ext4 rootwait"
CMA ?= "${@oe.utils.conditional("RASPBERRYPI_CAMERA_V2", "1", "cma=64M", "", d)}"
CMDLINE ?= "dwc_otg.lpm_enable=0 ${SERIAL} root=/dev/mmcblk0p2 rootfstype=ext4 rootwait ${CMA}"
# Add the kernel debugger over console kernel command line option if enabled
CMDLINE_append = ' ${@oe.utils.conditional("ENABLE_KGDB", "1", "kgdboc=serial0,115200", "", d)}'