1#ifndef __RIVAFB_H
2#define __RIVAFB_H
3
4#include <linux/fb.h>
5#include <video/vga.h>
6#include <linux/i2c.h>
7#include <linux/i2c-algo-bit.h>
8
9#include "riva_hw.h"
10
11/* GGI compatibility macros */
12#define NUM_SEQ_REGS		0x05
13#define NUM_CRT_REGS		0x41
14#define NUM_GRC_REGS		0x09
15#define NUM_ATC_REGS		0x15
16
17/* I2C */
18#define DDC_SCL_READ_MASK       (1 << 2)
19#define DDC_SCL_WRITE_MASK      (1 << 5)
20#define DDC_SDA_READ_MASK       (1 << 3)
21#define DDC_SDA_WRITE_MASK      (1 << 4)
22
23/* holds the state of the VGA core and extended Riva hw state from riva_hw.c.
24 * From KGI originally. */
25struct riva_regs {
26	u8 attr[NUM_ATC_REGS];
27	u8 crtc[NUM_CRT_REGS];
28	u8 gra[NUM_GRC_REGS];
29	u8 seq[NUM_SEQ_REGS];
30	u8 misc_output;
31	RIVA_HW_STATE ext;
32};
33
34struct riva_par;
35
36struct riva_i2c_chan {
37	struct riva_par *par;
38	unsigned long   ddc_base;
39	struct i2c_adapter adapter;
40	struct i2c_algo_bit_data algo;
41};
42
43struct riva_par {
44	RIVA_HW_INST riva;	/* interface to riva_hw.c */
45	u32 pseudo_palette[16]; /* default palette */
46	u32 palette[16];        /* for Riva128 */
47	u8 __iomem *ctrl_base;	/* virtual control register base addr */
48	unsigned dclk_max;	/* max DCLK */
49
50	struct riva_regs initial_state;	/* initial startup video mode */
51	struct riva_regs current_state;
52#ifdef CONFIG_X86
53	struct vgastate state;
54#endif
55	struct mutex open_lock;
56	unsigned int ref_count;
57	unsigned char *EDID;
58	unsigned int Chipset;
59	int forceCRTC;
60	Bool SecondCRTC;
61	int FlatPanel;
62	struct pci_dev *pdev;
63	int cursor_reset;
64#ifdef CONFIG_MTRR
65	struct { int vram; int vram_valid; } mtrr;
66#endif
67	struct riva_i2c_chan chan[3];
68};
69
70void riva_common_setup(struct riva_par *);
71unsigned long riva_get_memlen(struct riva_par *);
72unsigned long riva_get_maxdclk(struct riva_par *);
73void riva_delete_i2c_busses(struct riva_par *par);
74void riva_create_i2c_busses(struct riva_par *par);
75int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);
76
77#endif /* __RIVAFB_H */
78