Add submodule dependency filesHEADmaster

Change-Id: Iaf8d18082d3991dec7c0ebbea540f092188eb4ec

1 files changed, 55 insertions, 0 deletions

diff --git a/roms/u-boot/include/w1.h b/roms/u-boot/include/w1.h
new file mode 100644
index 000000000..b18078ba1
--- /dev/null
+++ b/roms/u-boot/include/w1.h
@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier:	GPL-2.0+
+ *
+ * Copyright (c) 2015 Free Electrons
+ * Copyright (c) 2015 NextThing Co
+ *
+ */
+
+#ifndef __W1_H
+#define __W1_H
+
+struct udevice;
+
+#define W1_FAMILY_DS24B33	0x23
+#define W1_FAMILY_DS2431	0x2d
+#define W1_FAMILY_DS2502	0x09
+#define W1_FAMILY_EEP_SANDBOX	0xfe
+
+struct w1_driver_entry {
+	struct driver	*driver;
+	u8		*family;
+};
+
+/* U_BOOT_W1_DEVICE() tells U-Boot to create a one-wire device.
+ *
+ * @__name: Device name (C identifier, not a string. E.g. gpio7_at_ff7e0000)
+ * @__driver: Driver name (C identifier, not a string. E.g. gpio7_at_ff7e0000)
+ * @__family: Family code number of the one-wire
+ */
+#define U_BOOT_W1_DEVICE(__name, __family)				\
+	ll_entry_declare(struct w1_driver_entry, __name, w1_driver_entry) = { \
+		.driver = llsym(struct driver, __name, driver),		\
+		.family = __family,					\
+	}
+
+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