[net-next-2.6.git] / drivers / gpu / drm / nouveau / nouveau_i2c.h

/*
 * 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_dp_helper.h"

struct dcb_i2c_entry;

struct nouveau_i2c_chan {
	struct i2c_adapter adapter;
	struct drm_device *dev;
	struct i2c_algo_bit_data bit;
	unsigned rd;
	unsigned wr;
	unsigned data;
};

int nouveau_i2c_init(struct drm_device *, struct dcb_i2c_entry *, int index);
void nouveau_i2c_fini(struct drm_device *, struct dcb_i2c_entry *);
struct nouveau_i2c_chan *nouveau_i2c_find(struct drm_device *, int 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, int index);

extern const struct i2c_algorithm nouveau_dp_i2c_algo;

#endif /* __NOUVEAU_I2C_H__ */
Commit	Line	Data
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 BS	27	#include <linux/i2c-algo-bit.h>
	28	#include "drm_dp_helper.h"
	29
	30	struct dcb_i2c_entry;
	31
	32	struct nouveau_i2c_chan {
	33	struct i2c_adapter adapter;
	34	struct drm_device *dev;
c020c9a8	35	struct i2c_algo_bit_data bit;
6ee73861 BS	36	unsigned rd;
	37	unsigned wr;
	38	unsigned data;
	39	};
	40
	41	int nouveau_i2c_init(struct drm_device , struct dcb_i2c_entry , int index);
	42	void nouveau_i2c_fini(struct drm_device , struct dcb_i2c_entry );
	43	struct nouveau_i2c_chan nouveau_i2c_find(struct drm_device , int index);
6d416d80 FJ	44	bool nouveau_probe_i2c_addr(struct nouveau_i2c_chan *i2c, int addr);
	45	int nouveau_i2c_identify(struct drm_device dev, const char what,
	46	struct i2c_board_info *info, int index);
6ee73861	47
c020c9a8	48	extern const struct i2c_algorithm nouveau_dp_i2c_algo;
6ee73861 BS	49
6ee73861 BS	50	#endif /* __NOUVEAU_I2C_H__ */