drivers/video/fbdev/riva/rivafb.h

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

File Facts

System
Linux kernel
Corpus path
drivers/video/fbdev/riva/rivafb.h
Extension
.h
Size
1923 bytes
Lines
77
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 riva_regs {
	u8 attr[NUM_ATC_REGS];
	u8 crtc[NUM_CRT_REGS];
	u8 gra[NUM_GRC_REGS];
	u8 seq[NUM_SEQ_REGS];
	u8 misc_output;
	RIVA_HW_STATE ext;
};

struct riva_par;

struct riva_i2c_chan {
	struct riva_par *par;
	unsigned long   ddc_base;
	struct i2c_adapter adapter;
	struct i2c_algo_bit_data algo;
};

struct riva_par {
	RIVA_HW_INST riva;	/* interface to riva_hw.c */
	u32 pseudo_palette[16]; /* default palette */
	u32 palette[16];        /* for Riva128 */
	u8 __iomem *ctrl_base;	/* virtual control register base addr */
	unsigned dclk_max;	/* max DCLK */

	struct riva_regs initial_state;	/* initial startup video mode */
	struct riva_regs current_state;
#ifdef CONFIG_X86
	struct vgastate state;
#endif
	struct mutex open_lock;
	unsigned int ref_count;
	unsigned char *EDID;
	unsigned int Chipset;
	int forceCRTC;
	Bool SecondCRTC;
	int FlatPanel;
	struct pci_dev *pdev;
	int cursor_reset;
	int wc_cookie;
	struct riva_i2c_chan chan[3];
};

void riva_common_setup(struct riva_par *);
unsigned long riva_get_memlen(struct riva_par *);
unsigned long riva_get_maxdclk(struct riva_par *);
void riva_delete_i2c_busses(struct riva_par *par);
void riva_create_i2c_busses(struct riva_par *par);
int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);

#endif /* __RIVAFB_H */

Annotation

Implementation Notes