drivers/video/fbdev/i810/i810_gtf.c

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/i810/i810_gtf.c

File Facts

System: Linux kernel
Corpus path: drivers/video/fbdev/i810/i810_gtf.c
Extension: .c
Size: 9148 bytes
Lines: 277
Domain: Driver Families
Bucket: drivers/video
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

linux/kernel.h
i810_regs.h
i810.h
i810_main.h

Detected Declarations

struct wm_info
function round_off_xres
function i810fb_fill_var_timings

Annotated Snippet

struct wm_info {
   u32 freq;
   u32  wm;
};

static struct wm_info i810_wm_8_100[] = {
	{ 15, 0x0070c000 },  { 19, 0x0070c000 },  { 25, 0x22003000 },
	{ 28, 0x22003000 },  { 31, 0x22003000 },  { 36, 0x22007000 },
	{ 40, 0x22007000 },  { 45, 0x22007000 },  { 49, 0x22008000 },
	{ 50, 0x22008000 },  { 56, 0x22008000 },  { 65, 0x22008000 },
	{ 75, 0x22008000 },  { 78, 0x22008000 },  { 80, 0x22008000 },
	{ 94, 0x22008000 },  { 96, 0x22107000 },  { 99, 0x22107000 },
	{ 108, 0x22107000 }, { 121, 0x22107000 }, { 128, 0x22107000 },
	{ 132, 0x22109000 }, { 135, 0x22109000 }, { 157, 0x2210b000 },
	{ 162, 0x2210b000 }, { 175, 0x2210b000 }, { 189, 0x2220e000 },
	{ 195, 0x2220e000 }, { 202, 0x2220e000 }, { 204, 0x2220e000 },
	{ 218, 0x2220f000 }, { 229, 0x22210000 }, { 234, 0x22210000 }, 
};

static struct wm_info i810_wm_16_100[] = {
	{ 15, 0x0070c000 },  { 19, 0x0020c000 },  { 25, 0x22006000 },
	{ 28, 0x22006000 },  { 31, 0x22007000 },  { 36, 0x22007000 },
	{ 40, 0x22007000 },  { 45, 0x22007000 },  { 49, 0x22009000 },
	{ 50, 0x22009000 },  { 56, 0x22108000 },  { 65, 0x2210e000 },
	{ 75, 0x2210e000 },  { 78, 0x2210e000 },  { 80, 0x22210000 },
	{ 94, 0x22210000 },  { 96, 0x22210000 },  { 99, 0x22210000 },
	{ 108, 0x22210000 }, { 121, 0x22210000 }, { 128, 0x22210000 },
	{ 132, 0x22314000 }, { 135, 0x22314000 }, { 157, 0x22415000 },
	{ 162, 0x22416000 }, { 175, 0x22416000 }, { 189, 0x22416000 },
	{ 195, 0x22416000 }, { 202, 0x22416000 }, { 204, 0x22416000 },
	{ 218, 0x22416000 }, { 229, 0x22416000 },
};

static struct wm_info i810_wm_24_100[] = {
	{ 15, 0x0020c000 },  { 19, 0x0040c000 },  { 25, 0x22009000 },
	{ 28, 0x22009000 },  { 31, 0x2200a000 },  { 36, 0x2210c000 },
	{ 40, 0x2210c000 },  { 45, 0x2210c000 },  { 49, 0x22111000 },
	{ 50, 0x22111000 },  { 56, 0x22111000 },  { 65, 0x22214000 },
	{ 75, 0x22214000 },  { 78, 0x22215000 },  { 80, 0x22216000 },
	{ 94, 0x22218000 },  { 96, 0x22418000 },  { 99, 0x22418000 },
	{ 108, 0x22418000 }, { 121, 0x22418000 }, { 128, 0x22419000 },
	{ 132, 0x22519000 }, { 135, 0x4441d000 }, { 157, 0x44419000 },
	{ 162, 0x44419000 }, { 175, 0x44419000 }, { 189, 0x44419000 },
	{ 195, 0x44419000 }, { 202, 0x44419000 }, { 204, 0x44419000 },
};

static struct wm_info i810_wm_8_133[] = {
	{ 15, 0x0070c000 },  { 19, 0x0070c000 },  { 25, 0x22003000 },
	{ 28, 0x22003000 },  { 31, 0x22003000 },  { 36, 0x22007000 },
	{ 40, 0x22007000 },  { 45, 0x22007000 },  { 49, 0x22008000 },
	{ 50, 0x22008000 },  { 56, 0x22008000 },  { 65, 0x22008000 },
	{ 75, 0x22008000 },  { 78, 0x22008000 },  { 80, 0x22008000 },
	{ 94, 0x22008000 },  { 96, 0x22107000 },  { 99, 0x22107000 },
	{ 108, 0x22107000 }, { 121, 0x22107000 }, { 128, 0x22107000 },
	{ 132, 0x22109000 }, { 135, 0x22109000 }, { 157, 0x2210b000 },
	{ 162, 0x2210b000 }, { 175, 0x2210b000 }, { 189, 0x2220e000 },
	{ 195, 0x2220e000 }, { 202, 0x2220e000 }, { 204, 0x2220e000 },
	{ 218, 0x2220f000 }, { 229, 0x22210000 }, { 234, 0x22210000 }, 
};

static struct wm_info i810_wm_16_133[] = {
	{ 15, 0x0020c000 },  { 19, 0x0020c000 },  { 25, 0x22006000 },
	{ 28, 0x22006000 },  { 31, 0x22007000 },  { 36, 0x22007000 },
	{ 40, 0x22007000 },  { 45, 0x22007000 },  { 49, 0x22009000 },
	{ 50, 0x22009000 },  { 56, 0x22108000 },  { 65, 0x2210e000 },
	{ 75, 0x2210e000 },  { 78, 0x2210e000 },  { 80, 0x22210000 },
	{ 94, 0x22210000 },  { 96, 0x22210000 },  { 99, 0x22210000 },
	{ 108, 0x22210000 }, { 121, 0x22210000 }, { 128, 0x22210000 },
	{ 132, 0x22314000 }, { 135, 0x22314000 }, { 157, 0x22415000 },
	{ 162, 0x22416000 }, { 175, 0x22416000 }, { 189, 0x22416000 },
	{ 195, 0x22416000 }, { 202, 0x22416000 }, { 204, 0x22416000 },
	{ 218, 0x22416000 }, { 229, 0x22416000 },
};

static struct wm_info i810_wm_24_133[] = {
	{ 15, 0x0020c000 },  { 19, 0x00408000 },  { 25, 0x22009000 },
	{ 28, 0x22009000 },  { 31, 0x2200a000 },  { 36, 0x2210c000 },
	{ 40, 0x2210c000 },  { 45, 0x2210c000 },  { 49, 0x22111000 },
	{ 50, 0x22111000 },  { 56, 0x22111000 },  { 65, 0x22214000 },
	{ 75, 0x22214000 },  { 78, 0x22215000 },  { 80, 0x22216000 },
	{ 94, 0x22218000 },  { 96, 0x22418000 },  { 99, 0x22418000 },
	{ 108, 0x22418000 }, { 121, 0x22418000 }, { 128, 0x22419000 },
	{ 132, 0x22519000 }, { 135, 0x4441d000 }, { 157, 0x44419000 },
	{ 162, 0x44419000 }, { 175, 0x44419000 }, { 189, 0x44419000 },
	{ 195, 0x44419000 }, { 202, 0x44419000 }, { 204, 0x44419000 },
};

void round_off_xres(u32 *xres) { }
void round_off_yres(u32 *xres, u32 *yres) { }

Annotation

Immediate include surface: `linux/kernel.h`, `i810_regs.h`, `i810.h`, `i810_main.h`.
Detected declarations: `struct wm_info`, `function round_off_xres`, `function i810fb_fill_var_timings`.
Atlas domain: Driver Families / drivers/video.
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.