diff options
Diffstat (limited to 'include/linux/mmc')
-rw-r--r-- | include/linux/mmc/card.h | 91 |
1 files changed, 90 insertions, 1 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h index 2a7e5497..c651317 100644 --- a/include/linux/mmc/card.h +++ b/include/linux/mmc/card.h @@ -11,6 +11,7 @@ #define LINUX_MMC_CARD_H #include <linux/mmc/core.h> +#include <linux/mod_devicetable.h> struct mmc_cid { unsigned int manfid; @@ -157,7 +158,92 @@ struct mmc_card { struct dentry *debugfs_root; }; -void mmc_fixup_device(struct mmc_card *dev); +/* + * The world is not perfect and supplies us with broken mmc/sdio devices. + * For at least some of these bugs we need a work-around. + */ + +struct mmc_fixup { + /* CID-specific fields. */ + const char *name; + + /* Valid revision range */ + u64 rev_start, rev_end; + + unsigned int manfid; + unsigned short oemid; + + /* SDIO-specfic fields. You can use SDIO_ANY_ID here of course */ + u16 cis_vendor, cis_device; + + void (*vendor_fixup)(struct mmc_card *card, int data); + int data; +}; + +#define CID_MANFID_ANY (-1ul) +#define CID_OEMID_ANY ((unsigned short) -1) +#define CID_NAME_ANY (NULL) + +#define END_FIXUP { 0 } + +#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _cis_vendor, _cis_device, \ + _fixup, _data) \ + { \ + .name = (_name), \ + .manfid = (_manfid), \ + .oemid = (_oemid), \ + .rev_start = (_rev_start), \ + .rev_end = (_rev_end), \ + .cis_vendor = (_cis_vendor), \ + .cis_device = (_cis_device), \ + .vendor_fixup = (_fixup), \ + .data = (_data), \ + } + +#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _fixup, _data) \ + _FIXUP_EXT(_name, _manfid, \ + _oemid, _rev_start, _rev_end, \ + SDIO_ANY_ID, SDIO_ANY_ID, \ + _fixup, _data) \ + +#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \ + MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data) + +#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \ + _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \ + CID_OEMID_ANY, 0, -1ull, \ + _vendor, _device, \ + _fixup, _data) \ + +#define cid_rev(hwrev, fwrev, year, month) \ + (((u64) hwrev) << 40 | \ + ((u64) fwrev) << 32 | \ + ((u64) year) << 16 | \ + ((u64) month)) + +#define cid_rev_card(card) \ + cid_rev(card->cid.hwrev, \ + card->cid.fwrev, \ + card->cid.year, \ + card->cid.month) + +/* + * This hook just adds a quirk unconditionally. + */ +static inline void __maybe_unused add_quirk(struct mmc_card *card, int data) +{ + card->quirks |= data; +} + +/* + * This hook just removes a quirk unconditionally. + */ +static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data) +{ + card->quirks &= ~data; +} #define mmc_card_mmc(c) ((c)->type == MMC_TYPE_MMC) #define mmc_card_sd(c) ((c)->type == MMC_TYPE_SD) @@ -218,4 +304,7 @@ struct mmc_driver { extern int mmc_register_driver(struct mmc_driver *); extern void mmc_unregister_driver(struct mmc_driver *); +extern void mmc_fixup_device(struct mmc_card *card, + const struct mmc_fixup *table); + #endif |