drivers/mmc/core/card.h

   1 /*
   2  * Private header for the mmc subsystem
   3  *
   4  * Copyright (C) 2016 Linaro Ltd
   5  *
   6  * Author: Ulf Hansson <ulf.hansson@linaro.org>
   7  *
   8  * License terms: GNU General Public License (GPL) version 2
   9  */
  10
  11 #ifndef _MMC_CORE_CARD_H
  12 #define _MMC_CORE_CARD_H
  13
  14 #include <linux/mmc/card.h>
  15
  16 #define mmc_card_name(c)        ((c)->cid.prod_name)
  17 #define mmc_card_id(c)          (dev_name(&(c)->dev))
  18 #define mmc_dev_to_card(d)      container_of(d, struct mmc_card, dev)
  19
  20 /* Card states */
  21 #define MMC_STATE_PRESENT       (1<<0)          /* present in sysfs */
  22 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
  23 #define MMC_STATE_BLOCKADDR     (1<<2)          /* card uses block-addressing */
  24 #define MMC_CARD_SDXC           (1<<3)          /* card is SDXC */
  25 #define MMC_CARD_REMOVED        (1<<4)          /* card has been removed */
  26 #define MMC_STATE_DOING_BKOPS   (1<<5)          /* card is doing BKOPS */
  27 #define MMC_STATE_SUSPENDED     (1<<6)          /* card is suspended */
  28
  29 #define mmc_card_present(c)     ((c)->state & MMC_STATE_PRESENT)
  30 #define mmc_card_readonly(c)    ((c)->state & MMC_STATE_READONLY)
  31 #define mmc_card_blockaddr(c)   ((c)->state & MMC_STATE_BLOCKADDR)
  32 #define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
  33 #define mmc_card_removed(c)     ((c) && ((c)->state & MMC_CARD_REMOVED))
  34 #define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
  35 #define mmc_card_suspended(c)   ((c)->state & MMC_STATE_SUSPENDED)
  36
  37 #define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
  38 #define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
  39 #define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
  40 #define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
  41 #define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
  42 #define mmc_card_set_doing_bkops(c)     ((c)->state |= MMC_STATE_DOING_BKOPS)
  43 #define mmc_card_clr_doing_bkops(c)     ((c)->state &= ~MMC_STATE_DOING_BKOPS)
  44 #define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED)
  45 #define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED)
  46
  47 /*
  48  * The world is not perfect and supplies us with broken mmc/sdio devices.
  49  * For at least some of these bugs we need a work-around.
  50  */
  51 struct mmc_fixup {
  52         /* CID-specific fields. */
  53         const char *name;
  54
  55         /* Valid revision range */
  56         u64 rev_start, rev_end;
  57
  58         unsigned int manfid;
  59         unsigned short oemid;
  60
  61         /* SDIO-specific fields. You can use SDIO_ANY_ID here of course */
  62         u16 cis_vendor, cis_device;
  63
  64         /* for MMC cards */
  65         unsigned int ext_csd_rev;
  66
  67         void (*vendor_fixup)(struct mmc_card *card, int data);
  68         int data;
  69 };
  70
  71 #define CID_MANFID_ANY (-1u)
  72 #define CID_OEMID_ANY ((unsigned short) -1)
  73 #define CID_NAME_ANY (NULL)
  74
  75 #define EXT_CSD_REV_ANY (-1u)
  76
  77 #define CID_MANFID_SANDISK      0x2
  78 #define CID_MANFID_TOSHIBA      0x11
  79 #define CID_MANFID_MICRON       0x13
  80 #define CID_MANFID_SAMSUNG      0x15
  81 #define CID_MANFID_KINGSTON     0x70
  82 #define CID_MANFID_HYNIX        0x90
  83
  84 #define END_FIXUP { NULL }
  85
  86 #define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end,        \
  87                    _cis_vendor, _cis_device,                            \
  88                    _fixup, _data, _ext_csd_rev)                         \
  89         {                                               \
  90                 .name = (_name),                        \
  91                 .manfid = (_manfid),                    \
  92                 .oemid = (_oemid),                      \
  93                 .rev_start = (_rev_start),              \
  94                 .rev_end = (_rev_end),                  \
  95                 .cis_vendor = (_cis_vendor),            \
  96                 .cis_device = (_cis_device),            \
  97                 .vendor_fixup = (_fixup),               \
  98                 .data = (_data),                        \
  99                 .ext_csd_rev = (_ext_csd_rev),          \
 100         }
 101
 102 #define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end,     \
 103                       _fixup, _data, _ext_csd_rev)                      \
 104         _FIXUP_EXT(_name, _manfid,                                      \
 105                    _oemid, _rev_start, _rev_end,                        \
 106                    SDIO_ANY_ID, SDIO_ANY_ID,                            \
 107                    _fixup, _data, _ext_csd_rev)                         \
 108
 109 #define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \
 110         MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data,  \
 111                       EXT_CSD_REV_ANY)
 112
 113 #define MMC_FIXUP_EXT_CSD_REV(_name, _manfid, _oemid, _fixup, _data,    \
 114                               _ext_csd_rev)                             \
 115         MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data,  \
 116                       _ext_csd_rev)
 117
 118 #define SDIO_FIXUP(_vendor, _device, _fixup, _data)                     \
 119         _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY,                        \
 120                     CID_OEMID_ANY, 0, -1ull,                            \
 121                    _vendor, _device,                                    \
 122                    _fixup, _data, EXT_CSD_REV_ANY)                      \
 123
 124 #define cid_rev(hwrev, fwrev, year, month)      \
 125         (((u64) hwrev) << 40 |                  \
 126          ((u64) fwrev) << 32 |                  \
 127          ((u64) year) << 16 |                   \
 128          ((u64) month))
 129
 130 #define cid_rev_card(card)                      \
 131         cid_rev(card->cid.hwrev,                \
 132                     card->cid.fwrev,            \
 133                     card->cid.year,             \
 134                     card->cid.month)
 135
 136 /*
 137  * Unconditionally quirk add/remove.
 138  */
 139 static inline void __maybe_unused add_quirk(struct mmc_card *card, int data)
 140 {
 141         card->quirks |= data;
 142 }
 143
 144 static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
 145 {
 146         card->quirks &= ~data;
 147 }
 148
 149 /*
 150  * Quirk add/remove for MMC products.
 151  */
 152 static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data)
 153 {
 154         if (mmc_card_mmc(card))
 155                 card->quirks |= data;
 156 }
 157
 158 static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card,
 159                                                    int data)
 160 {
 161         if (mmc_card_mmc(card))
 162                 card->quirks &= ~data;
 163 }
 164
 165 /*
 166  * Quirk add/remove for SD products.
 167  */
 168 static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data)
 169 {
 170         if (mmc_card_sd(card))
 171                 card->quirks |= data;
 172 }
 173
 174 static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card,
 175                                                    int data)
 176 {
 177         if (mmc_card_sd(card))
 178                 card->quirks &= ~data;
 179 }
 180
 181 static inline int mmc_card_lenient_fn0(const struct mmc_card *c)
 182 {
 183         return c->quirks & MMC_QUIRK_LENIENT_FN0;
 184 }
 185
 186 static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c)
 187 {
 188         return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE;
 189 }
 190
 191 static inline int mmc_card_disable_cd(const struct mmc_card *c)
 192 {
 193         return c->quirks & MMC_QUIRK_DISABLE_CD;
 194 }
 195
 196 static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c)
 197 {
 198         return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF;
 199 }
 200
 201 static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c)
 202 {
 203         return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512;
 204 }
 205
 206 static inline int mmc_card_long_read_time(const struct mmc_card *c)
 207 {
 208         return c->quirks & MMC_QUIRK_LONG_READ_TIME;
 209 }
 210
 211 static inline int mmc_card_broken_irq_polling(const struct mmc_card *c)
 212 {
 213         return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING;
 214 }
 215
 216 static inline int mmc_card_broken_hpi(const struct mmc_card *c)
 217 {
 218         return c->quirks & MMC_QUIRK_BROKEN_HPI;
 219 }
 220
 221 #endif