drivers/media/dvb-frontends/stv0900_init.h

Source file repositories/reference/linux-study-clean/drivers/media/dvb-frontends/stv0900_init.h

File Facts

System: Linux kernel
Corpus path: drivers/media/dvb-frontends/stv0900_init.h
Extension: .h
Size: 19289 bytes
Lines: 571
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

stv0900_priv.h

Detected Declarations

struct stv0900_car_loop_optim
struct stv0900_short_frames_car_loop_optim
struct stv0900_short_frames_car_loop_optim_vs_mod

Annotated Snippet

struct stv0900_car_loop_optim {
	enum fe_stv0900_modcode modcode;
	u8 car_loop_pilots_on_2;
	u8 car_loop_pilots_off_2;
	u8 car_loop_pilots_on_5;
	u8 car_loop_pilots_off_5;
	u8 car_loop_pilots_on_10;
	u8 car_loop_pilots_off_10;
	u8 car_loop_pilots_on_20;
	u8 car_loop_pilots_off_20;
	u8 car_loop_pilots_on_30;
	u8 car_loop_pilots_off_30;

};

struct stv0900_short_frames_car_loop_optim {
	enum fe_stv0900_modulation modulation;
	u8 car_loop_cut12_2;    /* Cut 1.2,   SR<=3msps     */
	u8 car_loop_cut20_2;    /* Cut 2.0,   SR<3msps      */
	u8 car_loop_cut12_5;    /* Cut 1.2,   3<SR<=7msps   */
	u8 car_loop_cut20_5;    /* Cut 2.0,   3<SR<=7msps   */
	u8 car_loop_cut12_10;   /* Cut 1.2,   7<SR<=15msps  */
	u8 car_loop_cut20_10;   /* Cut 2.0,   7<SR<=15msps  */
	u8 car_loop_cut12_20;   /* Cut 1.2,   10<SR<=25msps */
	u8 car_loop_cut20_20;   /* Cut 2.0,   10<SR<=25msps */
	u8 car_loop_cut12_30;   /* Cut 1.2,   25<SR<=45msps */
	u8 car_loop_cut20_30;   /* Cut 2.0,   10<SR<=45msps */

};

struct stv0900_short_frames_car_loop_optim_vs_mod {
	enum fe_stv0900_modulation modulation;
	u8 car_loop_2;	  /* SR<3msps      */
	u8 car_loop_5;	  /* 3<SR<=7msps   */
	u8 car_loop_10;   /* 7<SR<=15msps  */
	u8 car_loop_20;   /* 10<SR<=25msps */
	u8 car_loop_30;   /* 10<SR<=45msps */
};

/* Cut 1.x Tracking carrier loop carrier QPSK 1/2 to 8PSK 9/10 long Frame */
static const struct stv0900_car_loop_optim FE_STV0900_S2CarLoop[14] = {
	/*Modcod		2MPon	2MPoff	5MPon	5MPoff	10MPon
				10MPoff	20MPon	20MPoff	30MPon	30MPoff */
	{ STV0900_QPSK_12,	0x1C,	0x0D,	0x1B,	0x2C,	0x3A,
				0x1C,	0x2A,	0x3B,	0x2A,	0x1B },
	{ STV0900_QPSK_35,	0x2C,	0x0D,	0x2B,	0x2C,	0x3A,
				0x0C,	0x3A,	0x2B,	0x2A,	0x0B },
	{ STV0900_QPSK_23,	0x2C,	0x0D,	0x2B,	0x2C,	0x0B,
				0x0C,	0x3A,	0x1B,	0x2A,	0x3A },
	{ STV0900_QPSK_34,	0x3C,	0x0D,	0x3B,	0x1C,	0x0B,
				0x3B,	0x3A,	0x0B,	0x2A,	0x3A },
	{ STV0900_QPSK_45,	0x3C,	0x0D,	0x3B,	0x1C,	0x0B,
				0x3B,	0x3A,	0x0B,	0x2A,	0x3A },
	{ STV0900_QPSK_56,	0x0D,	0x0D,	0x3B,	0x1C,	0x0B,
				0x3B,	0x3A,	0x0B,	0x2A,	0x3A },
	{ STV0900_QPSK_89,	0x0D,	0x0D,	0x3B,	0x1C,	0x1B,
				0x3B,	0x3A,	0x0B,	0x2A,	0x3A },
	{ STV0900_QPSK_910,	0x1D,	0x0D,	0x3B,	0x1C,	0x1B,
				0x3B,	0x3A,	0x0B,	0x2A,	0x3A },
	{ STV0900_8PSK_35,	0x29,	0x3B,	0x09,	0x2B,	0x38,
				0x0B,	0x18,	0x1A,	0x08,	0x0A },
	{ STV0900_8PSK_23,	0x0A,	0x3B,	0x29,	0x2B,	0x19,
				0x0B,	0x38,	0x1A,	0x18,	0x0A },
	{ STV0900_8PSK_34,	0x3A,	0x3B,	0x2A,	0x2B,	0x39,
				0x0B,	0x19,	0x1A,	0x38,	0x0A },
	{ STV0900_8PSK_56,	0x1B,	0x3B,	0x0B,	0x2B,	0x1A,
				0x0B,	0x39,	0x1A,	0x19,	0x0A },
	{ STV0900_8PSK_89,	0x3B,	0x3B,	0x0B,	0x2B,	0x2A,
				0x0B,	0x39,	0x1A,	0x29,	0x39 },
	{ STV0900_8PSK_910,	0x3B,	0x3B,	0x0B,	0x2B,	0x2A,
				0x0B,	0x39,	0x1A,	0x29,	0x39 }
};


/* Cut 2.0 Tracking carrier loop carrier QPSK 1/2 to 8PSK 9/10 long Frame */
static const struct stv0900_car_loop_optim FE_STV0900_S2CarLoopCut20[14] = {
	/* Modcod		2MPon	2MPoff	5MPon	5MPoff	10MPon
				10MPoff	20MPon	20MPoff	30MPon	30MPoff */
	{ STV0900_QPSK_12,	0x1F,	0x3F,	0x1E,	0x3F,	0x3D,
				0x1F,	0x3D,	0x3E,	0x3D,	0x1E },
	{ STV0900_QPSK_35,	0x2F,	0x3F,	0x2E,	0x2F,	0x3D,
				0x0F,	0x0E,	0x2E,	0x3D,	0x0E },
	{ STV0900_QPSK_23,	0x2F,	0x3F,	0x2E,	0x2F,	0x0E,
				0x0F,	0x0E,	0x1E,	0x3D,	0x3D },
	{ STV0900_QPSK_34,	0x3F,	0x3F,	0x3E,	0x1F,	0x0E,
				0x3E,	0x0E,	0x1E,	0x3D,	0x3D },
	{ STV0900_QPSK_45,	0x3F,	0x3F,	0x3E,	0x1F,	0x0E,
				0x3E,	0x0E,	0x1E,	0x3D,	0x3D },
	{ STV0900_QPSK_56,	0x3F,	0x3F,	0x3E,	0x1F,	0x0E,
				0x3E,	0x0E,	0x1E,	0x3D,	0x3D },

Annotation

Immediate include surface: `stv0900_priv.h`.
Detected declarations: `struct stv0900_car_loop_optim`, `struct stv0900_short_frames_car_loop_optim`, `struct stv0900_short_frames_car_loop_optim_vs_mod`.
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.