1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | #ifndef __RIVAFB_H |
3 | #define __RIVAFB_H |
4 | |
5 | #include <linux/fb.h> |
6 | #include <video/vga.h> |
7 | #include <linux/i2c.h> |
8 | #include <linux/i2c-algo-bit.h> |
9 | |
10 | #include "riva_hw.h" |
11 | |
12 | /* GGI compatibility macros */ |
13 | #define NUM_SEQ_REGS 0x05 |
14 | #define NUM_CRT_REGS 0x41 |
15 | #define NUM_GRC_REGS 0x09 |
16 | #define NUM_ATC_REGS 0x15 |
17 | |
18 | /* I2C */ |
19 | #define DDC_SCL_READ_MASK (1 << 2) |
20 | #define DDC_SCL_WRITE_MASK (1 << 5) |
21 | #define DDC_SDA_READ_MASK (1 << 3) |
22 | #define DDC_SDA_WRITE_MASK (1 << 4) |
23 | |
24 | /* holds the state of the VGA core and extended Riva hw state from riva_hw.c. |
25 | * From KGI originally. */ |
26 | struct riva_regs { |
27 | u8 attr[NUM_ATC_REGS]; |
28 | u8 crtc[NUM_CRT_REGS]; |
29 | u8 gra[NUM_GRC_REGS]; |
30 | u8 seq[NUM_SEQ_REGS]; |
31 | u8 misc_output; |
32 | RIVA_HW_STATE ext; |
33 | }; |
34 | |
35 | struct riva_par; |
36 | |
37 | struct riva_i2c_chan { |
38 | struct riva_par *par; |
39 | unsigned long ddc_base; |
40 | struct i2c_adapter adapter; |
41 | struct i2c_algo_bit_data algo; |
42 | }; |
43 | |
44 | struct riva_par { |
45 | RIVA_HW_INST riva; /* interface to riva_hw.c */ |
46 | u32 pseudo_palette[16]; /* default palette */ |
47 | u32 palette[16]; /* for Riva128 */ |
48 | u8 __iomem *ctrl_base; /* virtual control register base addr */ |
49 | unsigned dclk_max; /* max DCLK */ |
50 | |
51 | struct riva_regs initial_state; /* initial startup video mode */ |
52 | struct riva_regs current_state; |
53 | #ifdef CONFIG_X86 |
54 | struct vgastate state; |
55 | #endif |
56 | struct mutex open_lock; |
57 | unsigned int ref_count; |
58 | unsigned char *EDID; |
59 | unsigned int Chipset; |
60 | int forceCRTC; |
61 | Bool SecondCRTC; |
62 | int FlatPanel; |
63 | struct pci_dev *pdev; |
64 | int cursor_reset; |
65 | int wc_cookie; |
66 | struct riva_i2c_chan chan[3]; |
67 | }; |
68 | |
69 | void riva_common_setup(struct riva_par *); |
70 | unsigned long riva_get_memlen(struct riva_par *); |
71 | unsigned long riva_get_maxdclk(struct riva_par *); |
72 | void riva_delete_i2c_busses(struct riva_par *par); |
73 | void riva_create_i2c_busses(struct riva_par *par); |
74 | int riva_probe_i2c_connector(struct riva_par *par, int conn, u8 **out_edid); |
75 | |
76 | #endif /* __RIVAFB_H */ |
77 | |