drivers/video/fbdev/stifb.c

File Facts

System

Linux kernel

Corpus path

drivers/video/fbdev/stifb.c

Extension

.c

Size

39780 bytes

Lines

1532

Domain

Driver Families

Bucket

drivers/video

Inferred role

Driver Families: exported/initcall integration point

Status

integration 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.
• Exports symbols or registers init work; inspect boot/module ordering and who consumes the exported contract.
• Defines or uses C structs; map object ownership, embedded links, reference counts, and lock ownership.

Dependency Surface

• linux/module.h
• linux/kernel.h
• linux/errno.h
• linux/string.h
• linux/mm.h
• linux/slab.h
• linux/delay.h
• linux/fb.h
• linux/init.h
• linux/ioport.h
• linux/io.h
• asm/grfioctl.h
• linux/uaccess.h
• video/sticore.h

Detected Declarations

• struct stifb_info
• function SETUP_HW
• function SETUP_FB
• function START_IMAGE_COLORMAP_ACCESS
• function WRITE_IMAGE_COLOR
• function FINISH_IMAGE_COLORMAP_ACCESS
• function SETUP_RAMDAC
• function CRX24_SETUP_RAMDAC
• function HCRX_SETUP_RAMDAC
• function CRX24_SET_OVLY_MASK
• function ENABLE_DISABLE_DISPLAY
• function CRX24_ENABLE_DISABLE_DISPLAY
• function ARTIST_ENABLE_DISABLE_DISPLAY
• function HYPER_ENABLE_DISABLE_DISPLAY
• function SETUP_ATTR_ACCESS
• function SET_ATTR_SIZE
• function FINISH_ATTR_ACCESS
• function elkSetupPlanes
• function ngleSetupAttrPlanes
• function rattlerSetupPlanes
• function setNgleLutBltCtl
• function setHyperLutBltCtl
• function hyperUndoITE
• function ngleDepth8_ClearImagePlanes
• function problem
• function ngleClearOverlayPlanes
• function hyperResetPlanes
• function ngleGetDeviceRomData
• function SETUP_HCRX
• function stifb_check_var
• function stifb_setcolreg
• function stifb_blank
• function stifb_copyarea
• function stifb_fillrect
• function stifb_init_display
• function stifb_init_fb
• function stifb_init
• function stifb_cleanup
• function stifb_setup
• module init stifb_init

Annotated Snippet

module_init(stifb_init);
module_exit(stifb_cleanup);

MODULE_AUTHOR("Helge Deller <deller@gmx.de>, Thomas Bogendoerfer <tsbogend@alpha.franken.de>");
MODULE_DESCRIPTION("Framebuffer driver for HP's NGLE series graphics cards in HP PARISC machines");
MODULE_LICENSE("GPL v2");

Annotation

• Immediate include surface: `linux/module.h`, `linux/kernel.h`, `linux/errno.h`, `linux/string.h`, `linux/mm.h`, `linux/slab.h`, `linux/delay.h`, `linux/fb.h`.
• Detected declarations: `struct stifb_info`, `function SETUP_HW`, `function SETUP_FB`, `function START_IMAGE_COLORMAP_ACCESS`, `function WRITE_IMAGE_COLOR`, `function FINISH_IMAGE_COLORMAP_ACCESS`, `function SETUP_RAMDAC`, `function CRX24_SETUP_RAMDAC`, `function HCRX_SETUP_RAMDAC`, `function CRX24_SET_OVLY_MASK`.
• Atlas domain: Driver Families / drivers/video.
• Implementation status: integration 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.