mirror of
https://github.com/AsahiLinux/u-boot
synced 2024-11-16 09:48:16 +00:00
38 lines
893 B
C
38 lines
893 B
C
/* 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
|