drivers/media/pci/saa7164/saa7164-types.h

File Facts

System

Linux kernel

Corpus path

drivers/media/pci/saa7164/saa7164-types.h

Extension

.h

Size

8968 bytes

Lines

429

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.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• No C-style include directives detected by the generator.

Detected Declarations

• struct tmComResHWDescr
• struct tmComResInterfaceDescr
• struct tmComResBusDescr
• struct tmComResBusInfo
• struct tmComResInfo
• struct cmd
• struct tmDescriptor
• struct tmComResDescrHeader
• struct tmComResExtDevDescrHeader
• struct tmComResGPIO
• struct tmComResPathDescrHeader
• struct tmComResAntTermDescrHeader
• struct tmComResTunerDescrHeader
• struct tmBuffer
• struct tmHWStreamParameters
• struct tmStreamParameters
• struct tmComResDMATermDescrHeader
• struct tmComResTSFormatDescrHeader
• struct tmComResSelDescrHeader
• struct tmComResProcDescrHeader
• struct tmComResEncVideoBitRate
• struct tmComResEncVideoInputAspectRatio
• struct tmComResEncVideoGopStructure
• struct tmComResEncoderDescrHeader
• struct tmComResAFeatureDescrHeader
• struct tmComResAudioDefaults
• struct tmComResEncAudioBitRate
• struct tmComResTunerStandard
• struct tmComResTunerStandardAuto
• struct tmComResPSFormatDescrHeader
• struct tmComResVBIFormatDescrHeader
• struct tmComResProbeCommit
• struct tmComResDebugSetLevel
• struct tmComResDebugGetData
• struct tmFwInfoStruct
• enum tmBusType
• enum tmComResCmd
• enum tmComResTermType
• enum tmBufferFlag

Annotated Snippet

struct tmComResHWDescr {
	u8	bLength;
	u8	bDescriptorType;
	u8	bDescriptorSubtype;
	u16	bcdSpecVersion;
	u32	dwClockFrequency;
	u32	dwClockUpdateRes;
	u8	bCapabilities;
	u32	dwDeviceRegistersLocation;
	u32	dwHostMemoryRegion;
	u32	dwHostMemoryRegionSize;
	u32	dwHostHibernatMemRegion;
	u32	dwHostHibernatMemRegionSize;
} __attribute__((packed));

/* This is DWORD aligned on windows but I can't find the right
 * gcc syntax to match the binary data from the device.
 * I've manually padded with Reserved[3] bytes to match the hardware,
 * but this could break if GCC decides to pack in a different way.
 */
struct tmComResInterfaceDescr {
	u8	bLength;
	u8	bDescriptorType;
	u8	bDescriptorSubtype;
	u8	bFlags;
	u8	bInterfaceType;
	u8	bInterfaceId;
	u8	bBaseInterface;
	u8	bInterruptId;
	u8	bDebugInterruptId;
	u8	BARLocation;
	u8	Reserved[3];
};

struct tmComResBusDescr {
	u64	CommandRing;
	u64	ResponseRing;
	u32	CommandWrite;
	u32	CommandRead;
	u32	ResponseWrite;
	u32	ResponseRead;
};

enum tmBusType {
	NONE		= 0,
	TYPE_BUS_PCI	= 1,
	TYPE_BUS_PCIe	= 2,
	TYPE_BUS_USB	= 3,
	TYPE_BUS_I2C	= 4
};

struct tmComResBusInfo {
	enum tmBusType Type;
	u16	m_wMaxReqSize;
	u8 __iomem *m_pdwSetRing;
	u32	m_dwSizeSetRing;
	u8 __iomem *m_pdwGetRing;
	u32	m_dwSizeGetRing;
	u32	m_dwSetWritePos;
	u32	m_dwSetReadPos;
	u32	m_dwGetWritePos;
	u32	m_dwGetReadPos;

	/* All access is protected */
	struct mutex lock;

};

struct tmComResInfo {
	u8	id;
	u8	flags;
	u16	size;
	u32	command;
	u16	controlselector;
	u8	seqno;
} __attribute__((packed));

enum tmComResCmd {
	SET_CUR  = 0x01,
	GET_CUR  = 0x81,
	GET_MIN  = 0x82,
	GET_MAX  = 0x83,
	GET_RES  = 0x84,
	GET_LEN  = 0x85,
	GET_INFO = 0x86,
	GET_DEF  = 0x87
};

struct cmd {
	u8 seqno;

Annotation

• Detected declarations: `struct tmComResHWDescr`, `struct tmComResInterfaceDescr`, `struct tmComResBusDescr`, `struct tmComResBusInfo`, `struct tmComResInfo`, `struct cmd`, `struct tmDescriptor`, `struct tmComResDescrHeader`, `struct tmComResExtDevDescrHeader`, `struct tmComResGPIO`.
• Atlas domain: Driver Families / drivers/media.
• Implementation status: source implementation candidate.

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.