root/drivers/mtd/nand/raw/internals.h

INCLUDED FROM

DEFINITIONS

1. nand_has_exec_op
2. nand_exec_op
3. nand_has_setup_data_iface

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (c) 2018 - Bootlin
   4  *
   5  * Author: Boris Brezillon <boris.brezillon@bootlin.com>
   6  *
   7  * Header containing internal definitions to be used only by core files.
   8  * NAND controller drivers should not include this file.
   9  */
  10 
  11 #ifndef __LINUX_RAWNAND_INTERNALS
  12 #define __LINUX_RAWNAND_INTERNALS
  13 
  14 #include <linux/mtd/rawnand.h>
  15 
  16 /*
  17  * NAND Flash Manufacturer ID Codes
  18  */
  19 #define NAND_MFR_AMD            0x01
  20 #define NAND_MFR_ATO            0x9b
  21 #define NAND_MFR_EON            0x92
  22 #define NAND_MFR_ESMT           0xc8
  23 #define NAND_MFR_FUJITSU        0x04
  24 #define NAND_MFR_HYNIX          0xad
  25 #define NAND_MFR_INTEL          0x89
  26 #define NAND_MFR_MACRONIX       0xc2
  27 #define NAND_MFR_MICRON         0x2c
  28 #define NAND_MFR_NATIONAL       0x8f
  29 #define NAND_MFR_RENESAS        0x07
  30 #define NAND_MFR_SAMSUNG        0xec
  31 #define NAND_MFR_SANDISK        0x45
  32 #define NAND_MFR_STMICRO        0x20
  33 #define NAND_MFR_TOSHIBA        0x98
  34 #define NAND_MFR_WINBOND        0xef
  35 
  36 /**
  37  * struct nand_manufacturer_ops - NAND Manufacturer operations
  38  * @detect: detect the NAND memory organization and capabilities
  39  * @init: initialize all vendor specific fields (like the ->read_retry()
  40  *        implementation) if any.
  41  * @cleanup: the ->init() function may have allocated resources, ->cleanup()
  42  *           is here to let vendor specific code release those resources.
  43  * @fixup_onfi_param_page: apply vendor specific fixups to the ONFI parameter
  44  *                         page. This is called after the checksum is verified.
  45  */
  46 struct nand_manufacturer_ops {
  47         void (*detect)(struct nand_chip *chip);
  48         int (*init)(struct nand_chip *chip);
  49         void (*cleanup)(struct nand_chip *chip);
  50         void (*fixup_onfi_param_page)(struct nand_chip *chip,
  51                                       struct nand_onfi_params *p);
  52 };
  53 
  54 /**
  55  * struct nand_manufacturer - NAND Flash Manufacturer structure
  56  * @name: Manufacturer name
  57  * @id: manufacturer ID code of device.
  58  * @ops: manufacturer operations
  59  */
  60 struct nand_manufacturer {
  61         int id;
  62         char *name;
  63         const struct nand_manufacturer_ops *ops;
  64 };
  65 
  66 
  67 extern struct nand_flash_dev nand_flash_ids[];
  68 
  69 extern const struct nand_manufacturer_ops amd_nand_manuf_ops;
  70 extern const struct nand_manufacturer_ops esmt_nand_manuf_ops;
  71 extern const struct nand_manufacturer_ops hynix_nand_manuf_ops;
  72 extern const struct nand_manufacturer_ops macronix_nand_manuf_ops;
  73 extern const struct nand_manufacturer_ops micron_nand_manuf_ops;
  74 extern const struct nand_manufacturer_ops samsung_nand_manuf_ops;
  75 extern const struct nand_manufacturer_ops toshiba_nand_manuf_ops;
  76 
  77 /* Core functions */
  78 const struct nand_manufacturer *nand_get_manufacturer(u8 id);
  79 int nand_bbm_get_next_page(struct nand_chip *chip, int page);
  80 int nand_markbad_bbm(struct nand_chip *chip, loff_t ofs);
  81 int nand_erase_nand(struct nand_chip *chip, struct erase_info *instr,
  82                     int allowbbt);
  83 int onfi_fill_data_interface(struct nand_chip *chip,
  84                              enum nand_data_interface_type type,
  85                              int timing_mode);
  86 int nand_get_features(struct nand_chip *chip, int addr, u8 *subfeature_param);
  87 int nand_set_features(struct nand_chip *chip, int addr, u8 *subfeature_param);
  88 int nand_read_page_raw_notsupp(struct nand_chip *chip, u8 *buf,
  89                                int oob_required, int page);
  90 int nand_write_page_raw_notsupp(struct nand_chip *chip, const u8 *buf,
  91                                 int oob_required, int page);
  92 int nand_exit_status_op(struct nand_chip *chip);
  93 int nand_read_param_page_op(struct nand_chip *chip, u8 page, void *buf,
  94                             unsigned int len);
  95 void nand_decode_ext_id(struct nand_chip *chip);
  96 void panic_nand_wait(struct nand_chip *chip, unsigned long timeo);
  97 void sanitize_string(uint8_t *s, size_t len);
  98 
  99 static inline bool nand_has_exec_op(struct nand_chip *chip)
 100 {
 101         if (!chip->controller || !chip->controller->ops ||
 102             !chip->controller->ops->exec_op)
 103                 return false;
 104 
 105         return true;
 106 }
 107 
 108 static inline int nand_exec_op(struct nand_chip *chip,
 109                                const struct nand_operation *op)
 110 {
 111         if (!nand_has_exec_op(chip))
 112                 return -ENOTSUPP;
 113 
 114         if (WARN_ON(op->cs >= nanddev_ntargets(&chip->base)))
 115                 return -EINVAL;
 116 
 117         return chip->controller->ops->exec_op(chip, op, false);
 118 }
 119 
 120 static inline bool nand_has_setup_data_iface(struct nand_chip *chip)
 121 {
 122         if (!chip->controller || !chip->controller->ops ||
 123             !chip->controller->ops->setup_data_interface)
 124                 return false;
 125 
 126         if (chip->options & NAND_KEEP_TIMINGS)
 127                 return false;
 128 
 129         return true;
 130 }
 131 
 132 /* BBT functions */
 133 int nand_markbad_bbt(struct nand_chip *chip, loff_t offs);
 134 int nand_isreserved_bbt(struct nand_chip *chip, loff_t offs);
 135 int nand_isbad_bbt(struct nand_chip *chip, loff_t offs, int allowbbt);
 136 
 137 /* Legacy */
 138 void nand_legacy_set_defaults(struct nand_chip *chip);
 139 void nand_legacy_adjust_cmdfunc(struct nand_chip *chip);
 140 int nand_legacy_check_hooks(struct nand_chip *chip);
 141 
 142 /* ONFI functions */
 143 u16 onfi_crc16(u16 crc, u8 const *p, size_t len);
 144 int nand_onfi_detect(struct nand_chip *chip);
 145 
 146 /* JEDEC functions */
 147 int nand_jedec_detect(struct nand_chip *chip);
 148 
 149 #endif /* __LINUX_RAWNAND_INTERNALS */