84 lines
2.1 KiB
C
84 lines
2.1 KiB
C
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/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__
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#define __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__
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#include <linux/compiler_types.h>
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#include <linux/err.h>
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#include <linux/mutex.h>
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#include <linux/types.h>
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#include <uapi/asm-generic/errno-base.h>
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struct clk;
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struct device;
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struct ingenic_ecc;
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struct platform_device;
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/**
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* struct ingenic_ecc_params - ECC parameters
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* @size: data bytes per ECC step.
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* @bytes: ECC bytes per step.
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* @strength: number of correctable bits per ECC step.
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*/
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struct ingenic_ecc_params {
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int size;
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int bytes;
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int strength;
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};
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#if IS_ENABLED(CONFIG_MTD_NAND_INGENIC_ECC)
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int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
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struct ingenic_ecc_params *params,
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const u8 *buf, u8 *ecc_code);
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int ingenic_ecc_correct(struct ingenic_ecc *ecc,
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struct ingenic_ecc_params *params, u8 *buf,
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u8 *ecc_code);
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void ingenic_ecc_release(struct ingenic_ecc *ecc);
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struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np);
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#else /* CONFIG_MTD_NAND_INGENIC_ECC */
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static inline int ingenic_ecc_calculate(struct ingenic_ecc *ecc,
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struct ingenic_ecc_params *params,
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const u8 *buf, u8 *ecc_code)
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{
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return -ENODEV;
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}
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static inline int ingenic_ecc_correct(struct ingenic_ecc *ecc,
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struct ingenic_ecc_params *params, u8 *buf,
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u8 *ecc_code)
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{
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return -ENODEV;
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}
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static inline void ingenic_ecc_release(struct ingenic_ecc *ecc)
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{
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}
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static inline struct ingenic_ecc *of_ingenic_ecc_get(struct device_node *np)
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{
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return ERR_PTR(-ENODEV);
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}
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#endif /* CONFIG_MTD_NAND_INGENIC_ECC */
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struct ingenic_ecc_ops {
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void (*disable)(struct ingenic_ecc *ecc);
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int (*calculate)(struct ingenic_ecc *ecc,
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struct ingenic_ecc_params *params,
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const u8 *buf, u8 *ecc_code);
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int (*correct)(struct ingenic_ecc *ecc,
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struct ingenic_ecc_params *params,
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u8 *buf, u8 *ecc_code);
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};
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struct ingenic_ecc {
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struct device *dev;
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const struct ingenic_ecc_ops *ops;
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void __iomem *base;
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struct clk *clk;
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struct mutex lock;
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};
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int ingenic_ecc_probe(struct platform_device *pdev);
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#endif /* __DRIVERS_MTD_NAND_INGENIC_ECC_INTERNAL_H__ */
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