Merge tag 'mac80211-for-davem-2016-06-29-v2' of git://git.kernel.org/pub/scm/linux...

[cascardo/linux.git] / include / linux / mtd / nand.h

diff --git a/include/linux/mtd/nand.h b/include/linux/mtd/nand.h
index 56574ba..fbe8e16 100644 (file)
--- a/include/linux/mtd/nand.h
+++ b/include/linux/mtd/nand.h
@@ -116,9 +116,14 @@ typedef enum {
        NAND_ECC_HW,
        NAND_ECC_HW_SYNDROME,
        NAND_ECC_HW_OOB_FIRST,
-       NAND_ECC_SOFT_BCH,
 } nand_ecc_modes_t;
 
+enum nand_ecc_algo {
+       NAND_ECC_UNKNOWN,
+       NAND_ECC_HAMMING,
+       NAND_ECC_BCH,
+};
+
 /*
  * Constants for Hardware ECC
  */
@@ -458,6 +463,7 @@ struct nand_hw_control {
 /**
  * struct nand_ecc_ctrl - Control structure for ECC
  * @mode:      ECC mode
+ * @algo:      ECC algorithm
  * @steps:     number of ECC steps per page
  * @size:      data bytes per ECC step
  * @bytes:     ECC bytes per step
@@ -466,7 +472,6 @@ struct nand_hw_control {
  * @prepad:    padding information for syndrome based ECC generators
  * @postpad:   padding information for syndrome based ECC generators
  * @options:   ECC specific options (see NAND_ECC_XXX flags defined above)
- * @layout:    ECC layout control struct pointer
  * @priv:      pointer to private ECC control data
  * @hwctl:     function to control hardware ECC generator. Must only
  *             be provided if an hardware ECC is available
@@ -508,6 +513,7 @@ struct nand_hw_control {
  */
 struct nand_ecc_ctrl {
        nand_ecc_modes_t mode;
+       enum nand_ecc_algo algo;
        int steps;
        int size;
        int bytes;
@@ -516,7 +522,6 @@ struct nand_ecc_ctrl {
        int prepad;
        int postpad;
        unsigned int options;
-       struct nand_ecclayout   *layout;
        void *priv;
        void (*hwctl)(struct mtd_info *mtd, int mode);
        int (*calculate)(struct mtd_info *mtd, const uint8_t *dat,
@@ -740,6 +745,9 @@ struct nand_chip {
        void *priv;
 };
 
+extern const struct mtd_ooblayout_ops nand_ooblayout_sp_ops;
+extern const struct mtd_ooblayout_ops nand_ooblayout_lp_ops;
+
 static inline void nand_set_flash_node(struct nand_chip *chip,
                                       struct device_node *np)
 {
@@ -1070,4 +1078,18 @@ int nand_check_erased_ecc_chunk(void *data, int datalen,
                                void *ecc, int ecclen,
                                void *extraoob, int extraooblen,
                                int threshold);
+
+/* Default write_oob implementation */
+int nand_write_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page);
+
+/* Default write_oob syndrome implementation */
+int nand_write_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+                           int page);
+
+/* Default read_oob implementation */
+int nand_read_oob_std(struct mtd_info *mtd, struct nand_chip *chip, int page);
+
+/* Default read_oob syndrome implementation */
+int nand_read_oob_syndrome(struct mtd_info *mtd, struct nand_chip *chip,
+                          int page);
 #endif /* __LINUX_MTD_NAND_H */