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83 lines
2.0 KiB
83 lines
2.0 KiB
/* 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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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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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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void ingenic_ecc_release(struct ingenic_ecc *ecc) |
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{ |
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} |
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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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