drivers/media/platform/qcom/camss/camss-csiphy.h

Source file repositories/reference/linux-study-clean/drivers/media/platform/qcom/camss/camss-csiphy.h

File Facts

System
Linux kernel
Corpus path
drivers/media/platform/qcom/camss/camss-csiphy.h
Extension
.h
Size
3321 bytes
Lines
138
Domain
Driver Families
Bucket
drivers/media
Inferred role
Driver Families: implementation source
Status
source implementation candidate

Why This File Exists

Repeatable hardware-adapter layer. Deep compatibility for every driver is out of scope; this atlas records patterns, probe lifecycles, bus glue, IRQ/DMA usage, and links back to core abstractions.

Dependency Surface

Detected Declarations

Annotated Snippet

struct csiphy_lane {
	u8 pos;
	u8 pol;
};

/**
 * struct csiphy_lanes_cfg - CSIPHY lanes configuration
 * @num_data: number of data lanes
 * @data:     data lanes configuration
 * @clk:      clock lane configuration (only for D-PHY)
 */
struct csiphy_lanes_cfg {
	int num_data;
	struct csiphy_lane *data;
	struct csiphy_lane clk;
};

struct csiphy_csi2_cfg {
	struct csiphy_lanes_cfg lane_cfg;
};

struct csiphy_config {
	u8 combo_mode;
	u8 csid_id;
	struct csiphy_csi2_cfg *csi2;
};

struct csiphy_format_info {
	u32 code;
	u8 bpp;
};

struct csiphy_formats {
	unsigned int nformats;
	const struct csiphy_format_info *formats;
};

struct csiphy_device;

struct csiphy_hw_ops {
	/*
	 * csiphy_get_lane_mask - Calculate CSI2 lane mask configuration parameter
	 * @lane_cfg - CSI2 lane configuration
	 *
	 * Return lane mask
	 */
	u8 (*get_lane_mask)(struct csiphy_lanes_cfg *lane_cfg);
	void (*hw_version_read)(struct csiphy_device *csiphy,
				struct device *dev);
	void (*reset)(struct csiphy_device *csiphy);
	void (*lanes_enable)(struct csiphy_device *csiphy,
			     struct csiphy_config *cfg,
			     s64 link_freq, u8 lane_mask);
	void (*lanes_disable)(struct csiphy_device *csiphy,
			      struct csiphy_config *cfg);
	irqreturn_t (*isr)(int irq, void *dev);
	int (*init)(struct csiphy_device *csiphy);
};

struct csiphy_subdev_resources {
	u8 id;
	const struct csiphy_hw_ops *hw_ops;
	const struct csiphy_formats *formats;
};

struct csiphy_device_regs {
	const struct csiphy_lane_regs *lane_regs;
	int lane_array_size;
	u32 offset;
	u32 common_status_offset;
};

struct csiphy_device {
	struct camss *camss;
	u8 id;
	struct v4l2_subdev subdev;
	struct media_pad pads[MSM_CSIPHY_PADS_NUM];
	void __iomem *base;
	void __iomem *base_clk_mux;
	u32 irq;
	char irq_name[30];
	struct camss_clock *clock;
	bool *rate_set;
	int nclocks;
	u32 timer_clk_rate;
	struct regulator_bulk_data *supplies;
	int num_supplies;
	struct csiphy_config cfg;
	struct v4l2_mbus_framefmt fmt[MSM_CSIPHY_PADS_NUM];
	const struct csiphy_subdev_resources *res;

Annotation

Implementation Notes