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/*
* Copyright 2009 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*/
#ifndef __NOUVEAU_I2C_H__
#define __NOUVEAU_I2C_H__
#include <linux/i2c.h>
#include <linux/i2c-algo-bit.h>
#include <drm/drm_dp_helper.h>
#define NV_I2C_PORT(n) (0x00 + (n))
#define NV_I2C_PORT_NUM 0x10
#define NV_I2C_DEFAULT(n) (0x80 + (n))
struct nouveau_i2c_chan {
struct i2c_adapter adapter;
struct drm_device *dev;
struct i2c_algo_bit_data bit;
struct list_head head;
u8 index;
u8 type;
u32 dcb;
u32 drive;
u32 sense;
u32 state;
};
int nouveau_i2c_init(struct drm_device *);
void nouveau_i2c_fini(struct drm_device *);
struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, u8 index);
bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr);
int nouveau_i2c_identify(struct drm_device *dev, const char *what,
struct i2c_board_info *info,
bool (*match)(struct nouveau_i2c_chan *,
struct i2c_board_info *),
int index);
extern const struct i2c_algorithm nouveau_dp_i2c_algo;
#endif /* __NOUVEAU_I2C_H__ */
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