diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/dm/uclass-id.h | 1 | ||||
| -rw-r--r-- | include/w1.h | 36 |
2 files changed, 37 insertions, 0 deletions
diff --git a/include/dm/uclass-id.h b/include/dm/uclass-id.h index 10d29901e0..fcfc120351 100644 --- a/include/dm/uclass-id.h +++ b/include/dm/uclass-id.h @@ -93,6 +93,7 @@ enum uclass_id { UCLASS_VIDEO, /* Video or LCD device */ UCLASS_VIDEO_BRIDGE, /* Video bridge, e.g. DisplayPort to LVDS */ UCLASS_VIDEO_CONSOLE, /* Text console driver for video device */ + UCLASS_W1, /* Dallas 1-Wire bus */ UCLASS_WDT, /* Watchdot Timer driver */ UCLASS_COUNT, diff --git a/include/w1.h b/include/w1.h new file mode 100644 index 0000000000..b36e0f8d5d --- /dev/null +++ b/include/w1.h @@ -0,0 +1,36 @@ +/* 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 + +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 |