nand-ecc-mxic.h

 1/* SPDX-License-Identifier: GPL-2.0 */
 2/*
 3 * Copyright © 2019 Macronix
 4 * Author: Miquèl Raynal <miquel.raynal@bootlin.com>
 5 *
 6 * Header for the Macronix external ECC engine.
 7 */
 8
 9#ifndef __MTD_NAND_ECC_MXIC_H__
10#define __MTD_NAND_ECC_MXIC_H__
11
12#include <linux/platform_device.h>
13#include <linux/device.h>
14
15struct mxic_ecc_engine;
16
17#if IS_ENABLED(CONFIG_MTD_NAND_ECC_MXIC) && IS_REACHABLE(CONFIG_MTD_NAND_CORE)
18
19const struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void);
20struct nand_ecc_engine *mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev);
21void mxic_ecc_put_pipelined_engine(struct nand_ecc_engine *eng);
22int mxic_ecc_process_data_pipelined(struct nand_ecc_engine *eng,
23				    unsigned int direction, dma_addr_t dirmap);
24
25#else /* !CONFIG_MTD_NAND_ECC_MXIC */
26
27static inline const struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void)
28{
29	return NULL;
30}
31
32static inline struct nand_ecc_engine *
33mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev)
34{
35	return ERR_PTR(-EOPNOTSUPP);
36}
37
38static inline void mxic_ecc_put_pipelined_engine(struct nand_ecc_engine *eng) {}
39
40static inline int mxic_ecc_process_data_pipelined(struct nand_ecc_engine *eng,
41						  unsigned int direction,
42						  dma_addr_t dirmap)
43{
44	return -EOPNOTSUPP;
45}
46
47#endif /* CONFIG_MTD_NAND_ECC_MXIC */
48
49#endif /* __MTD_NAND_ECC_MXIC_H__ */