diff options
Diffstat (limited to 'include/w1.h')
| -rw-r--r-- | include/w1.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/w1.h b/include/w1.h new file mode 100644 index 0000000000..399177a12e --- /dev/null +++ b/include/w1.h @@ -0,0 +1,37 @@ +/* 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_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 |