[thirdparty/u-boot.git] / include / w1.h

/* SPDX-License-Identifier:	GPL-2.0+
 *
 * Copyright (c) 2015 Free Electrons
 * Copyright (c) 2015 NextThing Co
 *
 */

#ifndef __W1_H
#define __W1_H

#include <dm.h>

#define W1_FAMILY_DS24B33	0x23
#define W1_FAMILY_DS2431	0x2d
#define W1_FAMILY_DS2502	0x09
#define W1_FAMILY_EEP_SANDBOX	0xfe

struct w1_device {
	u64	id;
};

struct w1_ops {
	u8	(*read_byte)(struct udevice *dev);
	bool	(*reset)(struct udevice *dev);
	u8	(*triplet)(struct udevice *dev, bool bdir);
	void	(*write_byte)(struct udevice *dev, u8 byte);
};

int w1_get_bus(int busnum, struct udevice **busp);
u8 w1_get_device_family(struct udevice *dev);

int w1_read_buf(struct udevice *dev, u8 *buf, unsigned int count);
int w1_read_byte(struct udevice *dev);
int w1_reset_select(struct udevice *dev);
int w1_write_buf(struct udevice *dev, u8 *buf, unsigned int count);
int w1_write_byte(struct udevice *dev, u8 byte);

#endif
Commit	Line	Data
d3e19cf9 MR	1	/* SPDX-License-Identifier: GPL-2.0+
	2	*
	3	* Copyright (c) 2015 Free Electrons
	4	* Copyright (c) 2015 NextThing Co
	5	*
	6	*/
	7
	8	#ifndef __W1_H
	9	#define __W1_H
	10
	11	#include <dm.h>
	12
	13	#define W1_FAMILY_DS24B33 0x23
	14	#define W1_FAMILY_DS2431 0x2d
f9c87adc	15	#define W1_FAMILY_DS2502 0x09
84e55bdd	16	#define W1_FAMILY_EEP_SANDBOX 0xfe
d3e19cf9 MR	17
	18	struct w1_device {
	19	u64 id;
	20	};
	21
	22	struct w1_ops {
	23	u8 (read_byte)(struct udevice dev);
	24	bool (reset)(struct udevice dev);
	25	u8 (triplet)(struct udevice dev, bool bdir);
	26	void (write_byte)(struct udevice dev, u8 byte);
	27	};
	28
	29	int w1_get_bus(int busnum, struct udevice **busp);
	30	u8 w1_get_device_family(struct udevice *dev);
	31
	32	int w1_read_buf(struct udevice dev, u8 buf, unsigned int count);
	33	int w1_read_byte(struct udevice *dev);
	34	int w1_reset_select(struct udevice *dev);
	35	int w1_write_buf(struct udevice dev, u8 buf, unsigned int count);
	36	int w1_write_byte(struct udevice *dev, u8 byte);
	37
	38	#endif