drivers/video/fbdev/sa1100fb.h

Source file repositories/reference/linux-study-clean/drivers/video/fbdev/sa1100fb.h

File Facts

System
Linux kernel
Corpus path
drivers/video/fbdev/sa1100fb.h
Extension
.h
Size
2565 bytes
Lines
102
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 sa1100fb_lcd_reg {
	unsigned long lccr0;
	unsigned long lccr1;
	unsigned long lccr2;
	unsigned long lccr3;
};

struct sa1100fb_info {
	struct fb_info		fb;
	struct device		*dev;
	const struct sa1100fb_rgb *rgb[NR_RGB];
	void __iomem		*base;
	struct gpio_desc	*shannon_lcden;

	/*
	 * These are the addresses we mapped
	 * the framebuffer memory region to.
	 */
	dma_addr_t		map_dma;
	u_char *		map_cpu;
	u_int			map_size;

	u_char *		screen_cpu;
	dma_addr_t		screen_dma;
	u16 *			palette_cpu;
	dma_addr_t		palette_dma;
	u_int			palette_size;

	dma_addr_t		dbar1;
	dma_addr_t		dbar2;

	u_int			reg_lccr0;
	u_int			reg_lccr1;
	u_int			reg_lccr2;
	u_int			reg_lccr3;

	volatile u_char		state;
	volatile u_char		task_state;
	struct mutex		ctrlr_lock;
	wait_queue_head_t	ctrlr_wait;
	struct work_struct	task;

#ifdef CONFIG_CPU_FREQ
	struct notifier_block	freq_transition;
#endif

	const struct sa1100fb_mach_info *inf;
	struct clk *clk;

	u32 pseudo_palette[16];
};

#define TO_INF(ptr,member)	container_of(ptr,struct sa1100fb_info,member)

#define SA1100_PALETTE_MODE_VAL(bpp)    (((bpp) & 0x018) << 9)

/*
 * These are the actions for set_ctrlr_state
 */
#define C_DISABLE		(0)
#define C_ENABLE		(1)
#define C_DISABLE_CLKCHANGE	(2)
#define C_ENABLE_CLKCHANGE	(3)
#define C_REENABLE		(4)
#define C_DISABLE_PM		(5)
#define C_ENABLE_PM		(6)
#define C_STARTUP		(7)

#define SA1100_NAME	"SA1100"

/*
 * Minimum X and Y resolutions
 */
#define MIN_XRES	64
#define MIN_YRES	64

Annotation

Implementation Notes