include/linux/mtd/nand-ecc-mxic.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright © 2019 Macronix
   4  * Author: Miquèl Raynal <[email protected]>
   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 const 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 const 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__ */