高通camera驱动 camx相关内容 (二)

camx

编译环境中的driver文件的相关位置

• sensor driver XML files : chi-cdk/vendor/sensor/default//
• Module configuration files : chi-cdk/vendor/module/_module.xml.
• Kernel dts files : kernel/msm-4.9/arch/arm64/boot/dts/qcom/-camera-sensor-.dtsi.
• Submodule driver XML files : chi-cdk/vendor/sensor/default//< sub-module _name_sub-module>.xml. For example, chi-cdk/vendor/sensor/default/actuator/_actuator.xml.
• The driver binary in the device vendor makefile to be included in the build is at vendor/qcom/proprietary/common/config/device-vendor.mk. For example, MM_CAMERA +=com.qti.sensormodule..bin.

Sensor information nodes （sensor 信息节点）

slaveInfo: XML文件中的slaveInfo节点保存驱动程序在 probe sensor 时使用的信息，包括I2C地址 I2C频率 sensor寄存器地址 sensor寄存器值 上下电时序等，注意需要完全按照厂商提供的sensor spec填写。

                                                                  Sensor slave information node

节点	描述
slaveInfo	Contains the sensor slave information and power settings.
sensorName	Name of the sensor. Example: imx230
slaveAddress	8 bit or 10 bit slave address Example: 32 For 0x20 slave address, the field value is 32.
regAddrType	Register address/data size in bytes. Example: 1 = Byte address 2 = Word address 3 = 3 byte address 4 = Address type max
regDataType	Register address/data size in bytes. Example: 1 = Byte data 2 = Word data 3 = Double word data 4 = Data type max
sensorIdRegAddr	Register address for sensor ID. Example: 22
sensorId	Sensor ID. Example: 560
sensorIDMask	Mask for sensor ID. Sensor ID may only be a few bits. Example: 4294967295
i2cFrequencyMode	I2C Frequency mode of slave. Example: FAST Supported modes are: STANDARD (100 kHz) FAST (400 kHz) FAST_PLUS (1 MHz) CUSTOM (custom frequency in DTSI)
powerUpSequence	Contains the power-up configuration sequence required to control the power to the device while turning it on. Example: RESET 0 0
powerSetting	Contains power configuration type, value, and delay.
configType	Power configuration type. Example: MCLK Supported types are: MCLK VANA VDIG VIO VAF RESET STANDBY
configValue	Power configuration type. Example: 24000000
delayMs	Delay in milliseconds. Example: 1
powerDownSequence	Contains the power-down configuration sequence that is required to control the power to the device while closing it. Example: RESET 0 0

refAddrInfo ： register information节点包含用于设置gain, frame length lines, and test pattern generation等各种传感器功能的配置寄存器地址。

节点	描述
regAddrInfo	Contains the information about the register addresses for various sensor settings.
xOutput	Controls the program width. Example: 844 If the register address is 0x34C then the value of this field is 844
yOutput	Controls the program height. Example: 846
frameLengthLines	Programs the frame length lines. Example: 832
lineLengthPixelClock	Programs the line length pixel clock. Example: 834
globalGainAddr	Program the gain channel. Example: 516
digitalGainRedAddr	Programs digital gain for the red channel. This address is optional but is required if supported by sensor. Example: 528
digitalGainGreenRedAddr	Programs digital gain for the green-red channel. This address is optional but is required if supported by sensor. Example: 526
digitalGainBlueAddr	Register address to program digital gain for the blue channel. This address is optional but is required if supported by sensor. Example: 530
digitalGainGreenBlueAddr	Programs digital gain for the green-blue channel. The address is optional but is required when supported by sensor. Example: 532
testPatternRAddr	Programs manual test pattern value for the red channel. Example: 1538
testPatternGRAddr	Programs manual test pattern value for the red channel. Example: 1540
testPatternBAddr	Programs manual test pattern value for the red channel. Example: 1542
testPatternGBAddr	Programs manual test pattern value for the red channel. Example: 1544

resolutionInfo： The resolution information node 包含有关分辨率设置和配置的信息。

节点	描述
resolutionInfo	This node holds the configuration and settings for all the resolutions.
resolutionData	Holds the configuration data for one resolution. The number of sensor supported resolutions is equal to the number of resolutionData nodes. NOTE: First node of the resolutionData should always point to the full resolution configuration of the sensor.
colorFilterArrangement	Color filter arrangement of the sensor. Example: BAYER_RGGB Supported filter arrangements are: BAYER_BGGR BAYER_GBRG BAYER_GRBG BAYER_RGGB BAYER_Y YUV_UYVY YUV_YUYV
streamInfo	Information related to the stream configuration. Example: 0 43 0 0 4608 2592 10 IMAGE
streamConfiguration	Information related to the stream data.
vc	Virtual channel of the data Example: 2 Each unique combination of virtual channel (VC) and DT should map to a unique channel identifier (CID) value. Possible CID values for a given VC are: 0 – 0, 1, 2, 3 1 – 4, 5, 6, 7 2 – 8, 9, 10, 11 3 – 12, 13, 14, 15 Valid values for VC are: 0, 1, 2, and 3
dt	DT of the stream. Example: 43 Default value is 0x2B (10 bit RAW)
frameDimension	Frame dimension contains x and y start coordinates, and the total width and height of the image.
xStart	X coordinate of start of image.
yStart	Y coordinate of start of image.
width	Width of the image.
height	Height of the image
bitWidth	Bit width of the data.
type	Stream type Example: IMAGE Supported stream types are: BLOB IMAGE PDAF HDR META
lineLengthPixelClock	Line length pixel clock of frame. Typically, this value is the active width + blanking width.
frameLengthLines	Frame length lines of frame. Typically, this value is the active height + blanking height.
minHorizontalBlanking	Minimum horizontal blanking interval in pixels.
minVerticalBlanking	Minimum horizontal blanking interval in lines
outputPixelClock	Represents how much data comes out of the camera over MIPI lanes to set the VFE clock. op_pixel_clk = (Total data rate from sensor)/(Bits per pixel) For example, if the MIPI DDR clock value (speed of the clock lane of the MIPI camera sensor) is 300 MHz and the sensor transmits on four lanes, each lane has a 600 MHz data rate. Thus, the total data rate is 2400 MHz. For 10 bits per pixel bayer data, the op_pixel_clk value is 2400/10 = 240 MHz. The values are filled in accordance with the sensor specifications. The values are calculated based on the register settings configured for the camera sensor.
horizontalBinning	Horizontal binning value.
verticalBinning	Vertical binning value.
framerate	Maximum frame rate
laneCount	The number of data lanes on which the sensor outputs data for a given mode of operation. The maximum data lane capability (given in the datasheet) of the sensor along with the sensor register settings configured in the driver determines the value
settleTimeNs	Settle time in nanoseconds. The value is configured, based on the output characteristics of the sensor, to ensure that the PHY transmitter of the sensor does not have sync issues with the PHY receiver of MSM chipsets. For 28 nm and smaller MSM parts, use the following formula to calculate the settle count: settle_CNT=(T(HS_SETTLE)_AVG)/T(TIMER_CLK) where, T(HS_SETTLE)_avg = (T(HS_SETTLE)_min + T(HS_SETTLE)_max ) / 2 as indicated by sensor datasheet. TIMER_CLK refers to the operating frequency of PHY interface to which the camera sensor is connected (for example, CAMSS_PHY0_CSI0PHYTIMER_CLK for PHY0). This value is set in the kernel/arch/arm/boot/dts/msm/msmXXXX-camera.dtsi file, where XXXX refers to the MSM chipset is used.   T(TIMER_CLK) is the duration of a clock cycle when the operating frequency is equal to TIMER_CLK, and is represented in nano second units. For example, T(TIMER_CLK) for TIMER_CLK 200 MHz is (1 × (10^9))/(200 × (10^6)) = 5 ns.   If the calculated value does not work as expected, try alternating the lower values between T(HS_SETTLE)_avg/T(TIMER_CLK) and T(HS_SETTLE)_min/T(TIMER_CLK) are tried. See https://mipi.org/specifications/d-phy for more details on T(HS_SETTLE)
is3Phase	Flag to know if the sensor is a three-phase sensor (C-PHY) or one-phase sensor (D-PHY).
resSettings	Sequence of register settings to configure the device with this resolution. NOTE: Do not add stream on settings for the sensor in the initialization settings, as this enables the sensor streaming before real software stream on and may cause PHY to miss LP sequence. Example: 0x114 0x3 2 1 WRITE 0x0
regSetting	This node holds one register configuration and forms a unit of large-resolution register settings sequence.
registerAddr	Register address that is accessed.
registerData	If the operation is WRITE, registerData is the data value to be written into the specified register address. If the operation is READ, registerData is the number of bytes to be read from the specified register address.
regAddrType	Type of register address.
regAddrType	Type of register address.
regDataType	Type of register data.
operation	Type of operation Supported values: WRITE READ POLL
delayUs	Delay in microseconds. If not explicitly specified, the delay is zero.
cropInfo	Crop information of the frame. Example: 0 0 0 0
left	Left crop pixel information.
right	Right crop pixel information.
top	Top crop pixel information.
bottom	Bottom crop pixel information.
capability	List of features/capabilities supported by the sensor. Supported features are: HFR iHDR INSENSOR_HDR PDAF QUADRA_CFA RAW_HDR ZIGZAG_HDR

exposureControlInfo： The exposure control information node 包含曝光细节，如  maximum gain, maximum line count, and conversion formulas for gain manipulation.

节点	描述
exposureControlInfo	This node holds the information about the exposure details such as maximum gain, maximum line count, and conversion formulas for gain manipulation. Example: 8 2 20 65515 512-(512/realGain) 512/(512-regGain)
maxAnalogGain	Maximum analog gain supported by the sensor.
maxDigitalGain	Maximum digital gain supported by the sensor.
verticalOffset	Minimum offset to be maintained between the line count and frame length lines.
maxLineCount	Maximum line count supported by the sensor.
realToRegGain	Real gain to register the gain equation. The equation must contain realGain in the equation.
regToRealGain	Register gain to real gain equation. The equation must contain regGain in the equation.

streamOnSettings： Register settings to start streaming.

节点	描述
streamOffSettings	Sequence of register settings to configure the device to stop streaming. Configure the following settings to match this guideline and take the clock and data lanes to LP11. Example: 0x0100 0x0 2 1 WRITE 0
regSetting	Register setting configuration. Contains: Register address, register data, register address type, register DT, operation, and delay in micro seconds
streamOffSettings	Sequence of register settings to configure the device to stop streaming. Configure the following settings to match this guideline and take the clock and data lanes to LP11. Example: 0x0100 0x0 2 1 WRITE 0
regSetting	Register setting configuration. Contains: Register address, register data, register address type, register DT, operation, and delay in micro seconds

groupHoldOnSettings: Register settings to configure the device in group hold settings.

节点	描述
groupHoldOnSettings	Sequence of register settings to configure the device in group hold settings. Example: 0x0104 0x1 2 1 WRITE 0
regSetting	Register setting configuration. Contains: Register address, register data, register address type, register data type, operation, and delay in micro seconds.
groupHoldOffSettings	Sequence of register settings to configure the device to stop group hold settings. Example: 0x0104 0x0 2 1 WRITE 0
regSetting	Register setting configuration. Contains: Register address, register data, register address type, register data type, operation, and delay in micro seconds.

initSettings: Sequence of register settings to initialize the sensor.

节点	描述
initSettings	Sequence of register settings to initialize the sensor. NOTE: Do not add stream on settings for the sensor in the initialization settings, as this enables the sensor streaming before real software stream on and may cause PHY to miss LP sequence. Example: 0x136 0x18 2 1 WRITE 0
regSetting	Register setting configuration. Contains: Register address, register data, register address type, register data type, operation, and delay in micro seconds.

testPatternInfo: This node contains the information about the test pattern generation register settings.

节点	描述
testPatternInfo	Contains the information about the test pattern generation register settings. Example: OFF 0x136 0x18 2 1 WRITE 0
testPatternData	This node holds the register and mode settings of a particular test pattern.
Mode	Supported modes are:  OFF  SOLID_COLOR  COLOR_BARS  COLOR_BARS_FADE_TO_GRAY  PN9 CUSTOM1
settings	Sequence of register settings to configure the test pattern on the sensor.
regSetting	Register setting configuration. Contains: Register address, register data, register address type, register data type, operation, and delay in micro seconds.

colorLevelInfo: The color level information node provides details about the various channels in complete dark light.

节点	描述
colorLevelInfo	Color level information. The default currents in various channels in complete dark light. Example: 1023 64 64 64 64
whiteLevel	White level value.
rPedestal	Pedestal value for the red channel.
grPedestal	Pedestal value for the green-red channel.
bPedestal	Pedestal value for the blue channel.
gbPedestal	Pedestal value for the green-blue channel.
opticalBlackRegionInfo	Information about black regions. Multiple black regions are provided, if applicable. Example: 0 0 4608 2592
dimension	Frame dimension: Contains xStart, yStart, width, and height
xStart	X start coordinate of the region.
yStart	Y start coordinate of the region.
width	Width of the region.
height	Height of the region.
pixelArrayInfo	Information about the pixel array. Active dimension and dummy pixels width are provided.
activeDimension	Width and height of the frame or subframe. Example: 0 0 4608 2592
xStart	Start of the X output in the frame.
yStart	Start of the Y output in the frame.
width	Total width of the frame in pixels.
height	Total height of the frame in pixels.
dummyInfo	Dummy pixels surrounding the active pixel array. Example: 0 0 0 0
left	Starting coordinate of the left dummy pixel.
right	Starting coordinate of the right dummy pixel.
top	Starting coordinate of the top dummy pixel.
bottom	Starting coordinate of the bottom dummy pixel.
appDelayInfo	Delay information.
linecount	Number of frames required to apply the line count.
gain	Number of frames required to apply the gain.
maxPipeline	Maximum pipeline delay in number of frames.
frameSkip	Number of initial bad frames to skip.
sensorProperty	Sensor property information. Example: 0 0 ONE_CHIP_COLOR_AREA
pixelSize	Pixel size in micro meters.
cropFactor	Crop factor.
sensingMethod	Sensing method of sensor. Supported sensing methods: UNDEFINED ONE_CHIP_COLOR_AREA TWO_CHIP_COLOR_AREA THREE_CHIP_COLOR_AREA COLOR_SEQUENCE_AREA TRILINEAR COLOR_SEQUENCE_LINEAR