diff options
| author | Pierre Ossman <drzeus@drzeus.cx> | 2006-12-31 00:11:32 +0100 |
|---|---|---|
| committer | Pierre Ossman <drzeus@drzeus.cx> | 2007-05-01 13:41:06 +0200 |
| commit | 7ea239d9e6d6993469a6a8ca83ff23834dfc3fce (patch) | |
| tree | 40629c00e317ca8f4ce0a6394dcb4b7535e7b7ab /include/linux/mmc | |
| parent | b2670b1c6ddd54be4a0f72f853122510ea5ef285 (diff) | |
mmc: add bus handler
Delegate protocol handling to "bus handlers". This allows the core to
just handle the task of arbitrating the bus. Initialisation and
pampering of cards is now done by the different bus handlers.
This design also allows MMC and SD (and later SDIO) to be more cleanly
separated, allowing easier maintenance.
Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/host.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 43bf6a5c398d..efae87b5c4e7 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -131,6 +131,8 @@ struct mmc_host { unsigned int max_blk_count; /* maximum number of blocks in one req */ /* private data */ + spinlock_t lock; /* lock for claim and bus ops */ + struct mmc_ios ios; /* current io bus settings */ u32 ocr; /* the current OCR setting */ @@ -141,7 +143,6 @@ struct mmc_host { struct mmc_card *card; /* device attached to this host */ wait_queue_head_t wq; - spinlock_t lock; /* claimed lock */ unsigned int claimed:1; /* host exclusively claimed */ struct delayed_work detect; @@ -149,6 +150,10 @@ struct mmc_host { unsigned int removed:1; /* host is being removed */ #endif + const struct mmc_bus_ops *bus_ops; /* current bus driver */ + unsigned int bus_refs; /* reference counter */ + unsigned int bus_dead:1; /* bus has been released */ + unsigned long private[0] ____cacheline_aligned; }; |