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
15 struct mxic_ecc_engine;
16
17 #if IS_ENABLED(CONFIG_MTD_NAND_ECC_MXIC) && IS_REACHABLE(CONFIG_MTD_NAND_CORE)
18
19 struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void);
20 struct nand_ecc_engine *mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev);
21 void mxic_ecc_put_pipelined_engine(struct nand_ecc_engine *eng);
22 int 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
27 static inline struct nand_ecc_engine_ops *mxic_ecc_get_pipelined_ops(void)
28 {
29 return NULL;
30 }
31
32 static inline struct nand_ecc_engine *
33 mxic_ecc_get_pipelined_engine(struct platform_device *spi_pdev)
34 {
35 return ERR_PTR(-EOPNOTSUPP);
36 }
37
38 static inline void mxic_ecc_put_pipelined_engine(struct nand_ecc_engine *eng) {}
39
40 static 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__ */
50
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