include/video/cirrus.h
Source file repositories/reference/linux-study-clean/include/video/cirrus.h
File Facts
- System
- Linux kernel
- Corpus path
include/video/cirrus.h- Extension
.h- Size
- 5801 bytes
- Lines
- 123
- Domain
- Repository Root And Misc
- Bucket
- include
- Inferred role
- Repository Root And Misc: implementation source
- Status
- source implementation candidate
Why This File Exists
Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.
- Top-level or miscellaneous repository surface. Use this as map coverage unless a later manual pass promotes the file into a deeper subsystem dossier.
Dependency Surface
- No C-style include directives detected by the generator.
Detected Declarations
- No top-level syscall, struct, function, initcall, or export declaration detected by the generator.
Annotated Snippet
#ifndef __CLGENFB_H__
#define __CLGENFB_H__
/* OLD COMMENT: definitions for Piccolo/SD64 VGA controller chip */
/* OLD COMMENT: these definitions might most of the time also work */
/* OLD COMMENT: for other CL-GD542x/543x based boards.. */
/*** External/General Registers ***/
#define CL_POS102 0x102 /* POS102 register */
#define CL_VSSM 0x46e8 /* Adapter Sleep */
#define CL_VSSM2 0x3c3 /* Motherboard Sleep */
/*** VGA Sequencer Registers ***/
/* the following are from the "extension registers" group */
#define CL_SEQR6 0x6 /* Unlock ALL Extensions */
#define CL_SEQR7 0x7 /* Extended Sequencer Mode */
#define CL_SEQR8 0x8 /* EEPROM Control */
#define CL_SEQR9 0x9 /* Scratch Pad 0 (do not access!) */
#define CL_SEQRA 0xa /* Scratch Pad 1 (do not access!) */
#define CL_SEQRB 0xb /* VCLK0 Numerator */
#define CL_SEQRC 0xc /* VCLK1 Numerator */
#define CL_SEQRD 0xd /* VCLK2 Numerator */
#define CL_SEQRE 0xe /* VCLK3 Numerator */
#define CL_SEQRF 0xf /* DRAM Control */
#define CL_SEQR10 0x10 /* Graphics Cursor X Position */
#define CL_SEQR11 0x11 /* Graphics Cursor Y Position */
#define CL_SEQR12 0x12 /* Graphics Cursor Attributes */
#define CL_SEQR13 0x13 /* Graphics Cursor Pattern Address Offset */
#define CL_SEQR14 0x14 /* Scratch Pad 2 (CL-GD5426/'28 Only) (do not access!) */
#define CL_SEQR15 0x15 /* Scratch Pad 3 (CL-GD5426/'28 Only) (do not access!) */
#define CL_SEQR16 0x16 /* Performance Tuning (CL-GD5424/'26/'28 Only) */
#define CL_SEQR17 0x17 /* Configuration ReadBack and Extended Control (CL-GF5428 Only) */
#define CL_SEQR18 0x18 /* Signature Generator Control (Not CL-GD5420) */
#define CL_SEQR19 0x19 /* Signature Generator Result Low Byte (Not CL-GD5420) */
#define CL_SEQR1A 0x1a /* Signature Generator Result High Byte (Not CL-GD5420) */
#define CL_SEQR1B 0x1b /* VCLK0 Denominator and Post-Scalar Value */
#define CL_SEQR1C 0x1c /* VCLK1 Denominator and Post-Scalar Value */
#define CL_SEQR1D 0x1d /* VCLK2 Denominator and Post-Scalar Value */
#define CL_SEQR1E 0x1e /* VCLK3 Denominator and Post-Scalar Value */
#define CL_SEQR1F 0x1f /* BIOS ROM write enable and MCLK Select */
/*** CRT Controller Registers ***/
#define CL_CRT22 0x22 /* Graphics Data Latches ReadBack */
#define CL_CRT24 0x24 /* Attribute Controller Toggle ReadBack */
#define CL_CRT26 0x26 /* Attribute Controller Index ReadBack */
/* the following are from the "extension registers" group */
#define CL_CRT19 0x19 /* Interlace End */
#define CL_CRT1A 0x1a /* Interlace Control */
#define CL_CRT1B 0x1b /* Extended Display Controls */
#define CL_CRT1C 0x1c /* Sync adjust and genlock register */
#define CL_CRT1D 0x1d /* Overlay Extended Control register */
#define CL_CRT1E 0x1e /* Another overflow register */
#define CL_CRT25 0x25 /* Part Status Register */
#define CL_CRT27 0x27 /* ID Register */
#define CL_CRT51 0x51 /* P4 disable "flicker fixer" */
/*** Graphics Controller Registers ***/
/* the following are from the "extension registers" group */
#define CL_GR9 0x9 /* Offset Register 0 */
#define CL_GRA 0xa /* Offset Register 1 */
#define CL_GRB 0xb /* Graphics Controller Mode Extensions */
#define CL_GRC 0xc /* Color Key (CL-GD5424/'26/'28 Only) */
#define CL_GRD 0xd /* Color Key Mask (CL-GD5424/'26/'28 Only) */
#define CL_GRE 0xe /* Miscellaneous Control (Cl-GD5428 Only) */
#define CL_GRF 0xf /* Display Compression Control register */
#define CL_GR10 0x10 /* 16-bit Pixel BG Color High Byte (Not CL-GD5420) */
#define CL_GR11 0x11 /* 16-bit Pixel FG Color High Byte (Not CL-GD5420) */
#define CL_GR12 0x12 /* Background Color Byte 2 Register */
#define CL_GR13 0x13 /* Foreground Color Byte 2 Register */
#define CL_GR14 0x14 /* Background Color Byte 3 Register */
#define CL_GR15 0x15 /* Foreground Color Byte 3 Register */
/* the following are CL-GD5426/'28 specific blitter registers */
#define CL_GR20 0x20 /* BLT Width Low */
#define CL_GR21 0x21 /* BLT Width High */
#define CL_GR22 0x22 /* BLT Height Low */
#define CL_GR23 0x23 /* BLT Height High */
#define CL_GR24 0x24 /* BLT Destination Pitch Low */
#define CL_GR25 0x25 /* BLT Destination Pitch High */
#define CL_GR26 0x26 /* BLT Source Pitch Low */
#define CL_GR27 0x27 /* BLT Source Pitch High */
#define CL_GR28 0x28 /* BLT Destination Start Low */
#define CL_GR29 0x29 /* BLT Destination Start Mid */
#define CL_GR2A 0x2a /* BLT Destination Start High */
#define CL_GR2C 0x2c /* BLT Source Start Low */
#define CL_GR2D 0x2d /* BLT Source Start Mid */
#define CL_GR2E 0x2e /* BLT Source Start High */
#define CL_GR2F 0x2f /* Picasso IV Blitter compat mode..? */
#define CL_GR30 0x30 /* BLT Mode */
#define CL_GR31 0x31 /* BLT Start/Status */
#define CL_GR32 0x32 /* BLT Raster Operation */
Annotation
- Atlas domain: Repository Root And Misc / include.
- 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.