Linux Kernel  3.7.1
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rivafb.h
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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. */
25 struct 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 
34 struct riva_par;
35 
36 struct 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 
43 struct 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 
70 void riva_common_setup(struct riva_par *);
71 unsigned long riva_get_memlen(struct riva_par *);
72 unsigned long riva_get_maxdclk(struct riva_par *);
73 void riva_delete_i2c_busses(struct riva_par *par);
74 void riva_create_i2c_busses(struct riva_par *par);
75 int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid);
76 
77 #endif /* __RIVAFB_H */
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