1.21. V4L2 fwnode kAPI¶

struct v4l2_fwnode_bus_mipi_csi2¶: MIPI CSI-2 bus data structure

Definition

struct v4l2_fwnode_bus_mipi_csi2 {
  unsigned int flags;
  unsigned char data_lanes;
  unsigned char clock_lane;
  unsigned short num_data_lanes;
  bool lane_polarities;
};

Members

flags: media bus (V4L2_MBUS_*) flags
data_lanes: an array of physical data lane indexes
clock_lane: physical lane index of the clock lane
num_data_lanes: number of data lanes
lane_polarities: polarity of the lanes. The order is the same of the physical lanes.

struct v4l2_fwnode_bus_parallel¶: parallel data bus data structure

Definition

struct v4l2_fwnode_bus_parallel {
  unsigned int flags;
  unsigned char bus_width;
  unsigned char data_shift;
};

Members

flags: media bus (V4L2_MBUS_*) flags
bus_width: bus width in bits
data_shift: data shift in bits

struct v4l2_fwnode_bus_mipi_csi1¶: CSI-1/CCP2 data bus structure

Definition

struct v4l2_fwnode_bus_mipi_csi1 {
  bool clock_inv;
  bool strobe;
  bool lane_polarity;
  unsigned char data_lane;
  unsigned char clock_lane;
};

Members

clock_inv: polarity of clock/strobe signal false - not inverted, true - inverted
strobe: false - data/clock, true - data/strobe
lane_polarity: the polarities of the clock (index 0) and data lanes index (1)
data_lane: the number of the data lane
clock_lane: the number of the clock lane

struct v4l2_fwnode_endpoint¶: the endpoint data structure

Definition

struct v4l2_fwnode_endpoint {
  struct fwnode_endpoint base;
  enum v4l2_mbus_type bus_type;
  union bus;
  u64 * link_frequencies;
  unsigned int nr_of_link_frequencies;
};

Members

base: fwnode endpoint of the v4l2_fwnode
bus_type: bus type
bus: bus configuration data structure
link_frequencies: array of supported link frequencies
nr_of_link_frequencies: number of elements in link_frequenccies array

struct v4l2_fwnode_link¶: a link between two endpoints

Definition

struct v4l2_fwnode_link {
  struct fwnode_handle * local_node;
  unsigned int local_port;
  struct fwnode_handle * remote_node;
  unsigned int remote_port;
};

Members

local_node: pointer to device_node of this endpoint
local_port: identifier of the port this endpoint belongs to
remote_node: pointer to device_node of the remote endpoint
remote_port: identifier of the port the remote endpoint belongs to