drivers/video/fbdev/acornfb.h

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/acornfb.h

File Facts

System
Linux kernel
Corpus path
drivers/video/fbdev/acornfb.h
Extension
.h
Size
3895 bytes
Lines
167
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.

Dependency Surface

Detected Declarations

Annotated Snippet

struct vidc20_palette {
	u_int red:8;
	u_int green:8;
	u_int blue:8;
	u_int ext:4;
	u_int unused:4;
};

struct vidc_palette {
	u_int red:4;
	u_int green:4;
	u_int blue:4;
	u_int trans:1;
	u_int sbz1:13;
	u_int reg:4;
	u_int sbz2:2;
};

union palette {
	struct vidc20_palette	vidc20;
	struct vidc_palette	vidc;
	u_int	p;
};

struct acornfb_par {
	struct device	*dev;
	unsigned long	screen_end;
	unsigned int	dram_size;
	unsigned int	vram_half_sam;
	unsigned int	palette_size;
	  signed int	montype;
	unsigned int	using_vram	: 1;
	unsigned int	dpms		: 1;

	union palette palette[VIDC_PALETTE_SIZE];

	u32		pseudo_palette[16];
};

struct vidc_timing {
	u_int	h_cycle;
	u_int	h_sync_width;
	u_int	h_border_start;
	u_int	h_display_start;
	u_int	h_display_end;
	u_int	h_border_end;
	u_int	h_interlace;

	u_int	v_cycle;
	u_int	v_sync_width;
	u_int	v_border_start;
	u_int	v_display_start;
	u_int	v_display_end;
	u_int	v_border_end;

	u_int	control;

	/* VIDC20 only */
	u_int	pll_ctl;
};

struct modey_params {
	u_int	y_res;
	u_int	u_margin;
	u_int	b_margin;
	u_int	vsync_len;
	u_int	vf;
};

struct modex_params {
	u_int	x_res;
	u_int	l_margin;
	u_int	r_margin;
	u_int	hsync_len;
	u_int	clock;
	u_int	hf;
	const struct modey_params *modey;
};

#ifdef HAS_VIDC20
/*
 * VIDC20 registers
 */
#define VIDC20_CTRL		0xe0000000
#define VIDC20_CTRL_PIX_VCLK	(0 << 0)
#define VIDC20_CTRL_PIX_HCLK	(1 << 0)
#define VIDC20_CTRL_PIX_RCLK	(2 << 0)
#define VIDC20_CTRL_PIX_CK	(0 << 2)
#define VIDC20_CTRL_PIX_CK2	(1 << 2)
#define VIDC20_CTRL_PIX_CK3	(2 << 2)

Annotation

Implementation Notes