2 * Copyright 2009 Red Hat Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
23 #ifndef __NOUVEAU_I2C_H__
24 #define __NOUVEAU_I2C_H__
26 #include <linux/i2c.h>
27 #include <linux/i2c-id.h>
28 #include <linux/i2c-algo-bit.h>
29 #include "drm_dp_helper.h"
33 struct nouveau_i2c_chan {
34 struct i2c_adapter adapter;
35 struct drm_device *dev;
37 struct i2c_algo_bit_data bit;
38 struct i2c_algo_dp_aux_data dp;
45 int nouveau_i2c_init(struct drm_device *, struct dcb_i2c_entry *, int index);
46 void nouveau_i2c_fini(struct drm_device *, struct dcb_i2c_entry *);
47 struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, int index);
48 bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr);
49 int nouveau_i2c_identify(struct drm_device *dev, const char *what,
50 struct i2c_board_info *info, int index);
52 int nouveau_dp_i2c_aux_ch(struct i2c_adapter *, int mode, uint8_t write_byte,
55 #endif /* __NOUVEAU_I2C_H__ */