diff options
Diffstat (limited to 'include/linux/mmc/card.h')
| -rw-r--r-- | include/linux/mmc/card.h | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h new file mode 100644 index 0000000..aefedf0 --- /dev/null +++ b/include/linux/mmc/card.h @@ -0,0 +1,92 @@ +/* + * linux/include/linux/mmc/card.h + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * Card driver specific definitions. + */ +#ifndef LINUX_MMC_CARD_H +#define LINUX_MMC_CARD_H + +#include <linux/mmc/mmc.h> + +struct mmc_cid { + unsigned int manfid; + char prod_name[8]; + unsigned int serial; + unsigned short oemid; + unsigned short year; + unsigned char hwrev; + unsigned char fwrev; + unsigned char month; +}; + +struct mmc_csd { + unsigned char mmca_vsn; + unsigned short cmdclass; + unsigned short tacc_clks; + unsigned int tacc_ns; + unsigned int max_dtr; + unsigned int read_blkbits; + unsigned int capacity; +}; + +struct mmc_host; + +/* + * MMC device + */ +struct mmc_card { + struct list_head node; /* node in hosts devices list */ + struct mmc_host *host; /* the host this device belongs to */ + struct device dev; /* the device */ + unsigned int rca; /* relative card address of device */ + unsigned int state; /* (our) card state */ +#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */ +#define MMC_STATE_DEAD (1<<1) /* device no longer in stack */ +#define MMC_STATE_BAD (1<<2) /* unrecognised device */ + u32 raw_cid[4]; /* raw card CID */ + u32 raw_csd[4]; /* raw card CSD */ + struct mmc_cid cid; /* card identification */ + struct mmc_csd csd; /* card specific */ +}; + +#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT) +#define mmc_card_dead(c) ((c)->state & MMC_STATE_DEAD) +#define mmc_card_bad(c) ((c)->state & MMC_STATE_BAD) + +#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT) +#define mmc_card_set_dead(c) ((c)->state |= MMC_STATE_DEAD) +#define mmc_card_set_bad(c) ((c)->state |= MMC_STATE_BAD) + +#define mmc_card_name(c) ((c)->cid.prod_name) +#define mmc_card_id(c) ((c)->dev.bus_id) + +#define mmc_list_to_card(l) container_of(l, struct mmc_card, node) +#define mmc_get_drvdata(c) dev_get_drvdata(&(c)->dev) +#define mmc_set_drvdata(c,d) dev_set_drvdata(&(c)->dev, d) + +/* + * MMC device driver (e.g., Flash card, I/O card...) + */ +struct mmc_driver { + struct device_driver drv; + int (*probe)(struct mmc_card *); + void (*remove)(struct mmc_card *); + int (*suspend)(struct mmc_card *, pm_message_t); + int (*resume)(struct mmc_card *); +}; + +extern int mmc_register_driver(struct mmc_driver *); +extern void mmc_unregister_driver(struct mmc_driver *); + +static inline int mmc_card_claim_host(struct mmc_card *card) +{ + return __mmc_claim_host(card->host, card); +} + +#define mmc_card_release_host(c) mmc_release_host((c)->host) + +#endif |
