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Ia ipu6 #275

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107 changes: 9 additions & 98 deletions README.md
Original file line number Diff line number Diff line change
Expand Up @@ -3,115 +3,26 @@
This repository supports MIPI cameras through the IPU6 on Intel Tiger Lake, Alder Lake, Raptor Lake and Meteor Lake platforms.
There are 4 repositories that provide the complete setup:

- https://github.com/intel/ipu6-drivers - kernel drivers for the IPU and sensors
- https://github.com/intel/ipu6-camera-bins - IPU firmware and proprietary image processing libraries
- https://github.com/intel/ipu6-camera-hal - HAL for processing of images in userspace
- https://github.com/intel/ipu6-drivers/tree/ia_ipu6 - kernel drivers for the IPU and sensors
- https://github.com/intel/ipu6-camera-bins/tree/ia_ipu6 - IPU firmware and proprietary image processing libraries
- https://github.com/intel/ipu6-camera-hal/tree/ia_ipu6 - HAL for processing of images in userspace
- https://github.com/intel/icamerasrc/tree/icamerasrc_slim_api (branch:icamerasrc_slim_api) - Gstreamer src plugin


## Content of this repository:
- IPU6 kernel driver
- Kernel patches needed
- Drivers for HM11B1, OV01A1S, OV01A10, OV02C10, OV02E10, OV2740, HM2170, HM2172 and HI556 sensors
- Drivers for IMX390 and ISX031 sensors

## Dependencies
- intel-vsc driver and LJCA USB driver (use https://github.com/intel/ivsc-driver.git for kernel version < 6.6)
- intel USB-IO driver (https://github.com/intel/usbio-drivers.git)
- INTEL_SKL_INT3472 should be enabled

## Build instructions:
Three ways are available:
1. build with kernel source tree
2. build out of kernel source tree
3. and build with dkms

### 1. Build with kernel source tree
- Tested with kernel v6.8
### Build with kernel source tree
- Tested with kernel v6.1.95
- Check out kernel
- Apply patches:
```sh
# For Meteor Lake B stepping only
patch/0002-iommu-Add-passthrough-for-MTL-IPU.patch

# For v5.15 <= kernel version < v5.17 and using INT3472
patch/int3472-v5.15/*.patch

# For v5.17 <= kernel version < v6.1.7 and using INT3472
patch/int3472-v5.17/*.patch

# For kernel version >= 6.1.7 and using INT3472
patch/int3472-v6.1.7/*.patch

# For kernel version >= 6.3 and using ov13b10
patch/ov13b10-v6.3/*.patch

# For kernel version v6.8
patch/v6.8/*.patch
```
- For kernel v6.8. patch/v6.8/0002-media-Add-IPU6-and-supported-sensors-config.patch will change the related Kconfig & Makefile.
- For latest linux-firmware repo, apply patch/linux-firmware/0001-Add-symbolic-link-for-Intel-IPU6-firmwares.patch to it to make driver work.
- Copy `drivers` and `include` folders to kernel source **(except Kconfig & Makefile at drivers/media/pci/intel and drivers/media/i2c as they are modified by patches in previous step. You can delete them before you copy folders.)**.

- Enable the following settings in .config
```conf
CONFIG_VIDEO_INTEL_IPU6=m
CONFIG_IPU_ISYS_BRIDGE=y
# For kernel >= v6.8 please use IPU_BRIDGE instead of IPU_ISYS_BRIDGE
CONFIG_IPU_BRIDGE=m
CONFIG_VIDEO_OV01A1S=m
CONFIG_VIDEO_OV01A10=m
CONFIG_VIDEO_HM11B1=m
CONFIG_VIDEO_OV02C10=m
CONFIG_VIDEO_OV02E10=m
CONFIG_VIDEO_HM2170=m
CONFIG_VIDEO_HM2172=m
# Set this only if you use only 1 camera and don't want too many device nodes in media-ctl
# CONFIG_IPU_SINGLE_BE_SOC_DEVICE=y
# If your kernel < 5.15 or not set CONFIG_INTEL_SKL_INT3472, please set this
# CONFIG_POWER_CTRL_LOGIC=m
```
- LJCA and CVF part as below, please check details at https://github.com/intel/ivsc-driver/blob/main/README.md.
```conf
CONFIG_MFD_LJCA=m
CONFIG_I2C_LJCA=m
CONFIG_SPI_LJCA=m
CONFIG_GPIO_LJCA=m
CONFIG_USB_LJCA=m
CONFIG_INTEL_MEI_VSC=m
CONFIG_INTEL_MEI_VSC_HW=m
CONFIG_INTEL_VSC=m
CONFIG_INTEL_VSC_CSI=m
CONFIG_INTEL_VSC_ACE=m
CONFIG_INTEL_VSC_PSE=m
CONFIG_INTEL_VSC_ACE_DEBUG=m
```
### 2. Build outside kernel source tree
- Requires kernel header installed on build machine
- For kernel >= v6.8, still need to patch kernel by patch/v6.8/0004 & 0005 to make upstream iVSC driver work correctly. For kernel <= v6.6, requires iVSC out-of-tree driver be built together.
- To prepare out-of-tree iVSC driver under kernel <= v6.6:
```sh
cd ipu6-drivers
git clone https://github.com/intel/ivsc-driver.git
cp -r ivsc-driver/backport-include ivsc-driver/drivers ivsc-driver/include .
rm -rf ivsc-driver
```

- To build and install:
```sh
make -j`nproc` && sudo make modules_install && sudo depmod -a
```

### 3. Build with dkms
- Prepare out-of-tree iVSC driver under kernel <= v6.6:
```sh
cd ipu6-drivers
git clone https://github.com/intel/ivsc-driver.git
cp -r ivsc-driver/backport-include ivsc-driver/drivers ivsc-driver/include .
rm -rf ivsc-driver
```

- Register, build and auto install:
```sh
sudo dkms add .
sudo dkms autoinstall ipu6-drivers/0.0.0
CONFIG_VIDEO_IMX390=m
CONFIG_VIDEO_ISX031=m
CONFIG_VIDEO_TI960=m
```
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