1 files changed, 137 insertions, 0 deletions
diff --git a/include/linux/i2c-dev.h b/include/linux/i2c-dev.h
new file mode 100644
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+++ b/include/linux/i2c-dev.h
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+/**
+ * @file
+ *
+ * @brief RTEMS Port of Linux I2C Device API
+ *
+ * @ingroup I2CLinux
+ */
+
+/*
+ * Copyright (c) 2014 embedded brains GmbH.  All rights reserved.
+ *
+ *  embedded brains GmbH
+ *  Dornierstr. 4
+ *  82178 Puchheim
+ *  Germany
+ *  <rtems@embedded-brains.de>
+ *
+ * The license and distribution terms for this file may be
+ * found in the file LICENSE in this distribution or at
+ * http://www.rtems.org/license/LICENSE.
+ */
+
+#ifndef _UAPI_LINUX_I2C_DEV_H
+#define _UAPI_LINUX_I2C_DEV_H
+
+#include <stdint.h>
+
+/**
+ * @addtogroup I2CLinux
+ *
+ * @{
+ */
+
+/**
+ * @name I2C IO Control Commands
+ *
+ * @{
+ */
+
+/**
+ * @brief Sets the count of transfer retries in case a slave
+ * device does not acknowledge a transaction.
+ *
+ * The argument type is unsigned long.
+ */
+#define I2C_RETRIES 0x701
+
+/**
+ * @brief Sets the transfer timeout in 10ms units.
+ *
+ * The argument type is unsigned long.
+ */
+#define I2C_TIMEOUT 0x702
+
+/**
+ * @brief Sets the slave address.
+ *
+ * It is an error to set a slave address already used by another slave device.
+ *
+ * The argument type is unsigned long.
+ */
+#define I2C_SLAVE 0x703
+
+/**
+ * @brief Forces setting the slave address.
+ *
+ * The argument type is unsigned long.
+ */
+#define I2C_SLAVE_FORCE 0x706
+
+/**
+ * @brief Enables 10-bit addresses if argument is non-zero, otherwise
+ * disables 10-bit addresses.
+ *
+ * The argument type is unsigned long.
+ */
+#define I2C_TENBIT 0x704
+
+/**
+ * @brief Gets the I2C controller functionality information.
+ *
+ * The argument type is a pointer to an unsigned long.
+ */
+#define I2C_FUNCS 0x705
+
+/**
+ * @brief Performs a combined read/write transfer.
+ *
+ * Only one stop condition is signalled.
+ *
+ * The argument type is a pointer to struct i2c_rdwr_ioctl_data.
+ */
+#define I2C_RDWR 0x707
+
+/**
+ * @brief Enables System Management Bus (SMBus) Packet Error Checking (PEC)
+ * if argument is non-zero, otherwise disables PEC.
+ *
+ * The argument type is unsigned long.
+ */
+#define I2C_PEC 0x708
+
+/**
+ * @brief Performs an SMBus transfer.
+ *
+ * The argument type is a pointer to struct i2c_smbus_ioctl_data.
+ */
+#define I2C_SMBUS 0x720
+
+/** @} */
+
+/**
+ * @brief Argument type for I2C_SMBUS IO control call.
+ */
+struct i2c_smbus_ioctl_data {
+  uint8_t read_write;
+  uint8_t command;
+  uint32_t size;
+  union i2c_smbus_data *data;
+};
+
+/**
+ * @brief Argument type for I2C_RDWR IO control call.
+ */
+struct i2c_rdwr_ioctl_data {
+  struct i2c_msg *msgs;
+  uint32_t nmsgs;
+};
+
+/**
+ * @brief Maximum count of messages for one IO control call.
+ */
+#define I2C_RDRW_IOCTL_MAX_MSGS 42
+
+/** @} */
+
+#endif /* _UAPI_LINUX_I2C_DEV_H */