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-rw-r--r--include/i2c_eeprom.h46
1 files changed, 46 insertions, 0 deletions
diff --git a/include/i2c_eeprom.h b/include/i2c_eeprom.h
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+++ b/include/i2c_eeprom.h
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+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * Copyright (c) 2014 Google, Inc
+ */
+
+#ifndef __I2C_EEPROM
+#define __I2C_EEPROM
+
+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);
+};
+
+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;
+};
+
+/*
+ * 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);
+
+#endif