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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (C) 2025 Altera Corporation <www.altera.com>
*/
#include <linux/i3c/master.h>
/**
* struct dm_i3c_ops - Driver operations for the I3C uclass
*
* This structure defines the set of operations that a driver must implement
* for interacting with an I3C controller in U-Boot.
*
*/
struct dm_i3c_ops {
/**
* @i3c_xfers: Transfer messages in I3C
*
* @dev: I3C controller device instance.
* @xfers: List of I3C private SDR transfer messages.
* @nxfers: The number of messages to transfer.
*
* Return: 0 on success, negative error code on failure.
*/
int (*i3c_xfers)(struct i3c_dev_desc *dev,
struct i3c_priv_xfer *xfers,
u32 nxfers);
/**
* @read: Perform I3C read transaction.
*
* @dev: Chip to read from
* @dev_number: The target device number from the driver model.
* @buf: Place to put data
* @num_bytes: Number of bytes to read.
*
* Return: 0 on success, negative error code on failure.
*/
int (*read)(struct udevice *dev, u32 dev_number,
u8 *buf, u32 num_bytes);
/**
* @write: Perform I3C write transaction.
*
* @dev: Chip to write to
* @dev_number: The target device number from the driver model.
* @buf: Buffer containing data to write
* @num_bytes: Number of bytes to write.
*
* Return: 0 on success, negative error code on failure.
*/
int (*write)(struct udevice *dev, u32 dev_number,
u8 *buf, u32 num_bytes);
};
/**
* i3c_get_ops - Retrieve the I3C operation functions for a device
* @dev: The I3C controller device.
*
* This macro returns the set of operation functions (`dm_i3c_ops`) implemented
* by the driver associated with the specified device. These operations define
* how the driver performs I3C communication tasks such as reading, writing,
* and message transfers.
*
* Return: The I3C operation structure for the device.
*/
#define i3c_get_ops(dev) ((struct dm_i3c_ops *)(dev)->driver->ops)
/**
* dm_i3c_write - Perform I3C write transaction
*
* @dev: Chip to write to
* @dev_number: The target device number from the driver model.
* @buf: Buffer containing data to write
* @num_bytes: Number of bytes to write.
*
* Return: 0 on success, negative error code on failure.
*/
int dm_i3c_write(struct udevice *dev, u32 dev_number,
u8 *buf, u32 num_bytes);
/**
* dm_i3c_read - Perform I3C read transaction
*
* @dev: Chip to read from
* @dev_number: The target device number from the driver model.
* @buf: Place to put data
* @num_bytes: Number of bytes to read.
*
* Return: 0 on success, negative error code on failure.
*/
int dm_i3c_read(struct udevice *dev, u32 dev_number,
u8 *buf, u32 num_bytes);
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