drivers/gpu/drm/i915/display/intel_tv.c

Source file repositories/reference/linux-study-clean/drivers/gpu/drm/i915/display/intel_tv.c

File Facts

System
Linux kernel
Corpus path
drivers/gpu/drm/i915/display/intel_tv.c
Extension
.c
Size
60228 bytes
Lines
2024
Domain
Driver Families
Bucket
drivers/gpu
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 intel_tv {
	struct intel_encoder base;

	int type;
};

struct video_levels {
	u16 blank, black;
	u8 burst;
};

struct color_conversion {
	u16 ry, gy, by, ay;
	u16 ru, gu, bu, au;
	u16 rv, gv, bv, av;
};

static const u32 filter_table[] = {
	0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
	0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
	0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
	0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
	0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
	0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
	0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
	0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
	0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
	0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
	0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
	0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
	0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
	0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
	0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
	0xB1403000, 0x2E203500, 0x35002E20, 0x3000B140,
	0x35A0B160, 0x2DC02E80, 0xB1403480, 0xB1603000,
	0x2EA03640, 0x34002D80, 0x3000B120, 0x36E0B160,
	0x2D202EF0, 0xB1203380, 0xB1603000, 0x2F303780,
	0x33002CC0, 0x3000B100, 0x3820B160, 0x2C802F50,
	0xB10032A0, 0xB1603000, 0x2F9038C0, 0x32202C20,
	0x3000B0E0, 0x3980B160, 0x2BC02FC0, 0xB0E031C0,
	0xB1603000, 0x2FF03A20, 0x31602B60, 0xB020B0C0,
	0x3AE0B160, 0x2B001810, 0xB0C03120, 0xB140B020,
	0x18283BA0, 0x30C02A80, 0xB020B0A0, 0x3C60B140,
	0x2A201838, 0xB0A03080, 0xB120B020, 0x18383D20,
	0x304029C0, 0xB040B080, 0x3DE0B100, 0x29601848,
	0xB0803000, 0xB100B040, 0x18483EC0, 0xB0402900,
	0xB040B060, 0x3F80B0C0, 0x28801858, 0xB060B080,
	0xB0A0B060, 0x18602820, 0xB0A02820, 0x0000B060,
	0x36403000, 0x2D002CC0, 0x30003640, 0x2D0036C0,
	0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
	0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
	0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
	0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
	0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
	0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
	0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
	0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
	0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
	0x28003100, 0x28002F00, 0x00003100, 0x36403000,
	0x2D002CC0, 0x30003640, 0x2D0036C0,
	0x35C02CC0, 0x37403000, 0x2C802D40, 0x30003540,
	0x2D8037C0, 0x34C02C40, 0x38403000, 0x2BC02E00,
	0x30003440, 0x2E2038C0, 0x34002B80, 0x39803000,
	0x2B402E40, 0x30003380, 0x2E603A00, 0x33402B00,
	0x3A803040, 0x2A802EA0, 0x30403300, 0x2EC03B40,
	0x32802A40, 0x3C003040, 0x2A002EC0, 0x30803240,
	0x2EC03C80, 0x320029C0, 0x3D403080, 0x29402F00,
	0x308031C0, 0x2F203DC0, 0x31802900, 0x3E8030C0,
	0x28802F40, 0x30C03140, 0x2F203F40, 0x31402840,
	0x28003100, 0x28002F00, 0x00003100,
};

/*
 * Color conversion values have 3 separate fixed point formats:
 *
 * 10 bit fields (ay, au)
 *   1.9 fixed point (b.bbbbbbbbb)
 * 11 bit fields (ry, by, ru, gu, gv)
 *   exp.mantissa (ee.mmmmmmmmm)
 *   ee = 00 = 10^-1 (0.mmmmmmmmm)
 *   ee = 01 = 10^-2 (0.0mmmmmmmmm)
 *   ee = 10 = 10^-3 (0.00mmmmmmmmm)
 *   ee = 11 = 10^-4 (0.000mmmmmmmmm)
 * 12 bit fields (gy, rv, bu)
 *   exp.mantissa (eee.mmmmmmmmm)
 *   eee = 000 = 10^-1 (0.mmmmmmmmm)
 *   eee = 001 = 10^-2 (0.0mmmmmmmmm)
 *   eee = 010 = 10^-3 (0.00mmmmmmmmm)
 *   eee = 011 = 10^-4 (0.000mmmmmmmmm)
 *   eee = 100 = reserved

Annotation

Implementation Notes