drivers/media/i2c/ov13b10.c

File Facts

System

Linux kernel

Corpus path

drivers/media/i2c/ov13b10.c

Extension

.c

Size

38864 bytes

Lines

1724

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.

• 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.
• Uses kernel synchronization; read lock ordering, sleepability, and interrupt context assumptions before translating.
• Allocates kernel memory; connect allocation flags and lifetime to context constraints.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/acpi.h
• linux/clk.h
• linux/delay.h
• linux/gpio/consumer.h
• linux/i2c.h
• linux/module.h
• linux/pm_runtime.h
• linux/regulator/consumer.h
• media/v4l2-ctrls.h
• media/v4l2-device.h
• media/v4l2-fwnode.h

Detected Declarations

• struct ov13b10_reg
• struct ov13b10_reg_list
• struct ov13b10_link_freq_config
• struct ov13b10_mode
• struct ov13b10
• function link_freq_to_pixel_rate
• function ov13b10_read_reg
• function ov13b10_write_reg
• function ov13b10_write_regs
• function ov13b10_write_reg_list
• function ov13b10_open
• function ov13b10_update_digital_gain
• function ov13b10_enable_test_pattern
• function ov13b10_set_ctrl_hflip
• function ov13b10_set_ctrl_vflip
• function ov13b10_set_ctrl
• function ov13b10_enum_mbus_code
• function ov13b10_enum_frame_size
• function ov13b10_update_pad_format
• function ov13b10_do_get_pad_format
• function ov13b10_get_pad_format
• function ov13b10_set_pad_format
• function ov13b10_identify_module
• function ov13b10_power_off
• function ov13b10_power_on
• function ov13b10_start_streaming
• function ov13b10_stop_streaming
• function ov13b10_set_stream
• function ov13b10_suspend
• function ov13b10_resume
• function ov13b10_init_controls
• function ov13b10_free_controls
• function ov13b10_get_pm_resources
• function ov13b10_check_hwcfg
• function ov13b10_probe
• function ov13b10_remove

Annotated Snippet

struct ov13b10_reg {
	u16 address;
	u8 val;
};

struct ov13b10_reg_list {
	u32 num_of_regs;
	const struct ov13b10_reg *regs;
};

/* Link frequency config */
struct ov13b10_link_freq_config {
	u64 link_freq;

	/* registers for this link frequency */
	struct ov13b10_reg_list reg_list;
};

/* Mode : resolution and related config&values */
struct ov13b10_mode {
	/* Frame width */
	u32 width;
	/* Frame height */
	u32 height;

	/* V-timing */
	u32 vts_def;
	u32 vts_min;

	/* Index of Link frequency config to be used */
	u32 link_freq_index;

	/* Pixels per line in current mode */
	u32 ppl;

	/* Default register values */
	struct ov13b10_reg_list reg_list;
};

/* 4208x3120 needs 1120Mbps/lane, 4 lanes */
static const struct ov13b10_reg mipi_data_rate_1120mbps[] = {
	{0x0103, 0x01},
	{0x0303, 0x04},
	{0x0305, 0xaf},
	{0x0321, 0x00},
	{0x0323, 0x04},
	{0x0324, 0x01},
	{0x0325, 0xa4},
	{0x0326, 0x81},
	{0x0327, 0x04},
	{0x3012, 0x07},
	{0x3013, 0x32},
	{0x3107, 0x23},
	{0x3501, 0x0c},
	{0x3502, 0x10},
	{0x3504, 0x08},
	{0x3508, 0x07},
	{0x3509, 0xc0},
	{0x3600, 0x16},
	{0x3601, 0x54},
	{0x3612, 0x4e},
	{0x3620, 0x00},
	{0x3621, 0x68},
	{0x3622, 0x66},
	{0x3623, 0x03},
	{0x3662, 0x92},
	{0x3666, 0xbb},
	{0x3667, 0x44},
	{0x366e, 0xff},
	{0x366f, 0xf3},
	{0x3675, 0x44},
	{0x3676, 0x00},
	{0x367f, 0xe9},
	{0x3681, 0x32},
	{0x3682, 0x1f},
	{0x3683, 0x0b},
	{0x3684, 0x0b},
	{0x3704, 0x0f},
	{0x3706, 0x40},
	{0x3708, 0x3b},
	{0x3709, 0x72},
	{0x370b, 0xa2},
	{0x3714, 0x24},
	{0x371a, 0x3e},
	{0x3725, 0x42},
	{0x3739, 0x12},
	{0x3767, 0x00},
	{0x377a, 0x0d},
	{0x3789, 0x18},
	{0x3790, 0x40},

Annotation

• Immediate include surface: `linux/acpi.h`, `linux/clk.h`, `linux/delay.h`, `linux/gpio/consumer.h`, `linux/i2c.h`, `linux/module.h`, `linux/pm_runtime.h`, `linux/regulator/consumer.h`.
• Detected declarations: `struct ov13b10_reg`, `struct ov13b10_reg_list`, `struct ov13b10_link_freq_config`, `struct ov13b10_mode`, `struct ov13b10`, `function link_freq_to_pixel_rate`, `function ov13b10_read_reg`, `function ov13b10_write_reg`, `function ov13b10_write_regs`, `function ov13b10_write_reg_list`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: source implementation candidate.
• Synchronization appears in or near this file; preserve lock ordering, sleepability, and interrupt-context constraints.

Implementation Notes

• This generated page is the file-by-file coverage layer; curated subsystem chapters should link here when they synthesize a multi-file control flow.
• Core OS pages should be promoted from atlas-only to deep-reviewed when they explain data structures, invariants, locking, lifecycle, and C implementation snippets.
• Driver-family pages are intentionally pattern-oriented unless they are part of the selected PCIe/NVMe representative device path.