WebSVN – Kolibri OS – Diff – /drivers/include/linux/i2c-algo-bit.h


/* ------------------------------------------------------------------------- */
/* i2c-algo-bit.h i2c driver algorithms for bit-shift adapters               */
/* ------------------------------------------------------------------------- */
/*   Copyright (C) 1995-99 Simon G. Vogl
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.
 
    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.
 
    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.                */
/* ------------------------------------------------------------------------- */
 
/* With some changes from Kyösti Mälkki  and even
   Frodo Looijaard  */
 
#ifndef _LINUX_I2C_ALGO_BIT_H
#define _LINUX_I2C_ALGO_BIT_H
 
/* --- Defines for bit-adapters ---------------------------------------	*/
/*
 * This struct contains the hw-dependent functions of bit-style adapters to
 * manipulate the line states, and to init any hw-specific features. This is
 * only used if you have more than one hw-type of adapter running.
 */
struct i2c_algo_bit_data {
	void *data;		/* private data for lowlevel routines */
	void (*setsda) (void *data, int state);
	void (*setscl) (void *data, int state);
	int  (*getsda) (void *data);
	int  (*getscl) (void *data);
	int  (*pre_xfer)  (struct i2c_adapter *);
	void (*post_xfer) (struct i2c_adapter *);
 
	/* local settings */
	int udelay;		/* half clock cycle time in us,
				   minimum 2 us for fast-mode I2C,
				   minimum 5 us for standard-mode I2C and SMBus,
				   maximum 50 us for SMBus */
	int timeout;		/* in jiffies */
};
 
int i2c_bit_add_bus(struct i2c_adapter *);
int i2c_bit_add_numbered_bus(struct i2c_adapter *);
 
#endif /* _LINUX_I2C_ALGO_BIT_H */

Subversion Repositories Kolibri OS

(root)/drivers/include/linux/i2c-algo-bit.h – Rev 1408 → 1964

Rev 1408		Rev 1964
1	/* ------------------------------------------------------------------------- */	1	/* ------------------------------------------------------------------------- */
2	/* i2c-algo-bit.h i2c driver algorithms for bit-shift adapters */	2	/* i2c-algo-bit.h i2c driver algorithms for bit-shift adapters */
3	/* ------------------------------------------------------------------------- */	3	/* ------------------------------------------------------------------------- */
4	/* Copyright (C) 1995-99 Simon G. Vogl	4	/* Copyright (C) 1995-99 Simon G. Vogl
5		5
6	This program is free software; you can redistribute it and/or modify	6	This program is free software; you can redistribute it and/or modify
7	it under the terms of the GNU General Public License as published by	7	it under the terms of the GNU General Public License as published by
8	the Free Software Foundation; either version 2 of the License, or	8	the Free Software Foundation; either version 2 of the License, or
9	(at your option) any later version.	9	(at your option) any later version.
10		10
11	This program is distributed in the hope that it will be useful,	11	This program is distributed in the hope that it will be useful,
12	but WITHOUT ANY WARRANTY; without even the implied warranty of	12	but WITHOUT ANY WARRANTY; without even the implied warranty of
13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the	13	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14	GNU General Public License for more details.	14	GNU General Public License for more details.
15		15
16	You should have received a copy of the GNU General Public License	16	You should have received a copy of the GNU General Public License
17	along with this program; if not, write to the Free Software	17	along with this program; if not, write to the Free Software
18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */	18	Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
19	/* ------------------------------------------------------------------------- */	19	/* ------------------------------------------------------------------------- */
20		20
21	/* With some changes from Kyösti Mälkki and even	21	/* With some changes from Kyösti Mälkki and even
22	Frodo Looijaard */	22	Frodo Looijaard */
23		23
24	#ifndef _LINUX_I2C_ALGO_BIT_H	24	#ifndef _LINUX_I2C_ALGO_BIT_H
25	#define _LINUX_I2C_ALGO_BIT_H	25	#define _LINUX_I2C_ALGO_BIT_H
26		26
27	/* --- Defines for bit-adapters --------------------------------------- */	27	/* --- Defines for bit-adapters --------------------------------------- */
28	/*	28	/*
29	* This struct contains the hw-dependent functions of bit-style adapters to	29	* This struct contains the hw-dependent functions of bit-style adapters to
30	* manipulate the line states, and to init any hw-specific features. This is	30	* manipulate the line states, and to init any hw-specific features. This is
31	* only used if you have more than one hw-type of adapter running.	31	* only used if you have more than one hw-type of adapter running.
32	*/	32	*/
33	struct i2c_algo_bit_data {	33	struct i2c_algo_bit_data {
34	void data; / private data for lowlevel routines */	34	void data; / private data for lowlevel routines */
35	void (setsda) (void data, int state);	35	void (setsda) (void data, int state);
36	void (setscl) (void data, int state);	36	void (setscl) (void data, int state);
37	int (getsda) (void data);	37	int (getsda) (void data);
38	int (getscl) (void data);	38	int (getscl) (void data);
-		39	int (pre_xfer) (struct i2c_adapter );
-		40	void (post_xfer) (struct i2c_adapter );
39		41
40	/* local settings */	42	/* local settings */
41	int udelay; /* half clock cycle time in us,	43	int udelay; /* half clock cycle time in us,
42	minimum 2 us for fast-mode I2C,	44	minimum 2 us for fast-mode I2C,
43	minimum 5 us for standard-mode I2C and SMBus,	45	minimum 5 us for standard-mode I2C and SMBus,
44	maximum 50 us for SMBus */	46	maximum 50 us for SMBus */
45	int timeout; /* in jiffies */	47	int timeout; /* in jiffies */
46	};	48	};
47		49
48	int i2c_bit_add_bus(struct i2c_adapter *);	50	int i2c_bit_add_bus(struct i2c_adapter *);
49	int i2c_bit_add_numbered_bus(struct i2c_adapter *);	51	int i2c_bit_add_numbered_bus(struct i2c_adapter *);
50		52
51	#endif /* _LINUX_I2C_ALGO_BIT_H */	53	#endif /* _LINUX_I2C_ALGO_BIT_H */