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6ee73861 BS |
1 | /* |
2 | * Copyright 2009 Red Hat Inc. | |
3 | * | |
4 | * Permission is hereby granted, free of charge, to any person obtaining a | |
5 | * copy of this software and associated documentation files (the "Software"), | |
6 | * to deal in the Software without restriction, including without limitation | |
7 | * the rights to use, copy, modify, merge, publish, distribute, sublicense, | |
8 | * and/or sell copies of the Software, and to permit persons to whom the | |
9 | * Software is furnished to do so, subject to the following conditions: | |
10 | * | |
11 | * The above copyright notice and this permission notice shall be included in | |
12 | * all copies or substantial portions of the Software. | |
13 | * | |
14 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR | |
15 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, | |
16 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL | |
17 | * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR | |
18 | * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, | |
19 | * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR | |
20 | * OTHER DEALINGS IN THE SOFTWARE. | |
21 | */ | |
22 | ||
23 | #ifndef __NOUVEAU_I2C_H__ | |
24 | #define __NOUVEAU_I2C_H__ | |
25 | ||
26 | #include <linux/i2c.h> | |
6ee73861 | 27 | #include <linux/i2c-algo-bit.h> |
760285e7 | 28 | #include <drm/drm_dp_helper.h> |
6ee73861 | 29 | |
486a45c2 BS |
30 | #define NV_I2C_PORT(n) (0x00 + (n)) |
31 | #define NV_I2C_PORT_NUM 0x10 | |
32 | #define NV_I2C_DEFAULT(n) (0x80 + (n)) | |
6ee73861 BS |
33 | |
34 | struct nouveau_i2c_chan { | |
35 | struct i2c_adapter adapter; | |
36 | struct drm_device *dev; | |
ec9b3a9d | 37 | struct i2c_algo_bit_data bit; |
486a45c2 BS |
38 | struct list_head head; |
39 | u8 index; | |
40 | u8 type; | |
41 | u32 dcb; | |
2bdb06e3 BS |
42 | u32 drive; |
43 | u32 sense; | |
44 | u32 state; | |
6ee73861 BS |
45 | }; |
46 | ||
486a45c2 BS |
47 | int nouveau_i2c_init(struct drm_device *); |
48 | void nouveau_i2c_fini(struct drm_device *); | |
49 | struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, u8 index); | |
6d416d80 FJ |
50 | bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr); |
51 | int nouveau_i2c_identify(struct drm_device *dev, const char *what, | |
66146da0 FJ |
52 | struct i2c_board_info *info, |
53 | bool (*match)(struct nouveau_i2c_chan *, | |
54 | struct i2c_board_info *), | |
55 | int index); | |
6ee73861 | 56 | |
c020c9a8 | 57 | extern const struct i2c_algorithm nouveau_dp_i2c_algo; |
6ee73861 BS |
58 | |
59 | #endif /* __NOUVEAU_I2C_H__ */ |