X-Git-Url: https://git.librecmc.org/?a=blobdiff_plain;f=include%2Fi2c_eeprom.h;h=b96254ae79f5bb7cc071e005efd41934f92e5d56;hb=80e99adbe47d1c8590f9b971ac52257fdc51a5ec;hp=ea6c962a3932f3bc7a28276a93e2bc9c45f2a2cf;hpb=e3bf81b1e841ecabe7c8b3d48621256db8b8623e;p=oweals%2Fu-boot.git

diff --git a/include/i2c_eeprom.h b/include/i2c_eeprom.h
index ea6c962a39..b96254ae79 100644
--- a/include/i2c_eeprom.h
+++ b/include/i2c_eeprom.h
@@ -1,7 +1,6 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
 /*
  * Copyright (c) 2014 Google, Inc
- *
- * SPDX-License-Identifier:	GPL-2.0+
  */
 
 #ifndef __I2C_EEPROM
@@ -11,9 +10,49 @@ struct i2c_eeprom_ops {
 	int (*read)(struct udevice *dev, int offset, uint8_t *buf, int size);
 	int (*write)(struct udevice *dev, int offset, const uint8_t *buf,
 		     int size);
+	int (*size)(struct udevice *dev);
 };
 
 struct i2c_eeprom {
+	/* The EEPROM's page size in byte */
+	unsigned long pagesize;
+	/* The EEPROM's page width in bits (pagesize = 2^pagewidth) */
+	unsigned pagewidth;
+	/* The EEPROM's capacity in bytes */
+	unsigned long size;
 };
 
+/*
+ * i2c_eeprom_read() - read bytes from an I2C EEPROM chip
+ *
+ * @dev:	Chip to read from
+ * @offset:	Offset within chip to start reading
+ * @buf:	Place to put data
+ * @size:	Number of bytes to read
+ *
+ * @return 0 on success, -ve on failure
+ */
+int i2c_eeprom_read(struct udevice *dev, int offset, uint8_t *buf, int size);
+
+/*
+ * i2c_eeprom_write() - write bytes to an I2C EEPROM chip
+ *
+ * @dev:	Chip to write to
+ * @offset:	Offset within chip to start writing
+ * @buf:	Buffer containing data to write
+ * @size:	Number of bytes to write
+ *
+ * @return 0 on success, -ve on failure
+ */
+int i2c_eeprom_write(struct udevice *dev, int offset, uint8_t *buf, int size);
+
+/*
+ * i2c_eeprom_size() - get size of I2C EEPROM chip
+ *
+ * @dev:	Chip to query
+ *
+ * @return +ve size in bytes on success, -ve on failure
+ */
+int i2c_eeprom_size(struct udevice *dev);
+
 #endif