diff options
Diffstat (limited to 'drivers/mmc/core/card.h')
| -rw-r--r-- | drivers/mmc/core/card.h | 221 |
1 files changed, 221 insertions, 0 deletions
diff --git a/drivers/mmc/core/card.h b/drivers/mmc/core/card.h new file mode 100644 index 000000000000..f06cd91964ce --- /dev/null +++ b/drivers/mmc/core/card.h @@ -0,0 +1,221 @@ +/* + * Private header for the mmc subsystem + * + * Copyright (C) 2016 Linaro Ltd + * + * Author: Ulf Hansson <ulf.hansson@linaro.org> + * + * License terms: GNU General Public License (GPL) version 2 + */ + +#ifndef _MMC_CORE_CARD_H +#define _MMC_CORE_CARD_H + +#include <linux/mmc/card.h> + +#define mmc_card_name(c) ((c)->cid.prod_name) +#define mmc_card_id(c) (dev_name(&(c)->dev)) +#define mmc_dev_to_card(d) container_of(d, struct mmc_card, dev) + +/* Card states */ +#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */ +#define MMC_STATE_READONLY (1<<1) /* card is read-only */ +#define MMC_STATE_BLOCKADDR (1<<2) /* card uses block-addressing */ +#define MMC_CARD_SDXC (1<<3) /* card is SDXC */ +#define MMC_CARD_REMOVED (1<<4) /* card has been removed */ +#define MMC_STATE_DOING_BKOPS (1<<5) /* card is doing BKOPS */ +#define MMC_STATE_SUSPENDED (1<<6) /* card is suspended */ + +#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT) +#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY) +#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR) +#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC) +#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED)) +#define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS) +#define mmc_card_suspended(c) ((c)->state & MMC_STATE_SUSPENDED) + +#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT) +#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY) +#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR) +#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC) +#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED) +#define mmc_card_set_doing_bkops(c) ((c)->state |= MMC_STATE_DOING_BKOPS) +#define mmc_card_clr_doing_bkops(c) ((c)->state &= ~MMC_STATE_DOING_BKOPS) +#define mmc_card_set_suspended(c) ((c)->state |= MMC_STATE_SUSPENDED) +#define mmc_card_clr_suspended(c) ((c)->state &= ~MMC_STATE_SUSPENDED) + +/* + * 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-specific fields. You can use SDIO_ANY_ID here of course */ + u16 cis_vendor, cis_device; + + /* for MMC cards */ + unsigned int ext_csd_rev; + + void (*vendor_fixup)(struct mmc_card *card, int data); + int data; +}; + +#define CID_MANFID_ANY (-1u) +#define CID_OEMID_ANY ((unsigned short) -1) +#define CID_NAME_ANY (NULL) + +#define EXT_CSD_REV_ANY (-1u) + +#define CID_MANFID_SANDISK 0x2 +#define CID_MANFID_TOSHIBA 0x11 +#define CID_MANFID_MICRON 0x13 +#define CID_MANFID_SAMSUNG 0x15 +#define CID_MANFID_KINGSTON 0x70 +#define CID_MANFID_HYNIX 0x90 + +#define END_FIXUP { NULL } + +#define _FIXUP_EXT(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _cis_vendor, _cis_device, \ + _fixup, _data, _ext_csd_rev) \ + { \ + .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), \ + .ext_csd_rev = (_ext_csd_rev), \ + } + +#define MMC_FIXUP_REV(_name, _manfid, _oemid, _rev_start, _rev_end, \ + _fixup, _data, _ext_csd_rev) \ + _FIXUP_EXT(_name, _manfid, \ + _oemid, _rev_start, _rev_end, \ + SDIO_ANY_ID, SDIO_ANY_ID, \ + _fixup, _data, _ext_csd_rev) \ + +#define MMC_FIXUP(_name, _manfid, _oemid, _fixup, _data) \ + MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \ + EXT_CSD_REV_ANY) + +#define MMC_FIXUP_EXT_CSD_REV(_name, _manfid, _oemid, _fixup, _data, \ + _ext_csd_rev) \ + MMC_FIXUP_REV(_name, _manfid, _oemid, 0, -1ull, _fixup, _data, \ + _ext_csd_rev) + +#define SDIO_FIXUP(_vendor, _device, _fixup, _data) \ + _FIXUP_EXT(CID_NAME_ANY, CID_MANFID_ANY, \ + CID_OEMID_ANY, 0, -1ull, \ + _vendor, _device, \ + _fixup, _data, EXT_CSD_REV_ANY) \ + +#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) + +/* + * Unconditionally quirk add/remove. + */ +static inline void __maybe_unused add_quirk(struct mmc_card *card, int data) +{ + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data) +{ + card->quirks &= ~data; +} + +/* + * Quirk add/remove for MMC products. + */ +static inline void __maybe_unused add_quirk_mmc(struct mmc_card *card, int data) +{ + if (mmc_card_mmc(card)) + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk_mmc(struct mmc_card *card, + int data) +{ + if (mmc_card_mmc(card)) + card->quirks &= ~data; +} + +/* + * Quirk add/remove for SD products. + */ +static inline void __maybe_unused add_quirk_sd(struct mmc_card *card, int data) +{ + if (mmc_card_sd(card)) + card->quirks |= data; +} + +static inline void __maybe_unused remove_quirk_sd(struct mmc_card *card, + int data) +{ + if (mmc_card_sd(card)) + card->quirks &= ~data; +} + +static inline int mmc_card_lenient_fn0(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_LENIENT_FN0; +} + +static inline int mmc_blksz_for_byte_mode(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BLKSZ_FOR_BYTE_MODE; +} + +static inline int mmc_card_disable_cd(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_DISABLE_CD; +} + +static inline int mmc_card_nonstd_func_interface(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_NONSTD_FUNC_IF; +} + +static inline int mmc_card_broken_byte_mode_512(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BROKEN_BYTE_MODE_512; +} + +static inline int mmc_card_long_read_time(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_LONG_READ_TIME; +} + +static inline int mmc_card_broken_irq_polling(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BROKEN_IRQ_POLLING; +} + +static inline int mmc_card_broken_hpi(const struct mmc_card *c) +{ + return c->quirks & MMC_QUIRK_BROKEN_HPI; +} + +#endif |