diff options
Diffstat (limited to 'drivers/mmc/core/core.h')
| -rw-r--r-- | drivers/mmc/core/core.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/drivers/mmc/core/core.h b/drivers/mmc/core/core.h index 1c1066342fb..fad8edc3809 100644 --- a/drivers/mmc/core/core.h +++ b/drivers/mmc/core/core.h @@ -15,7 +15,44 @@ #define MMC_CMD_RETRIES 3 +struct mmc_bus_ops { + void (*remove)(struct mmc_host *); + void (*detect)(struct mmc_host *); +}; + +void mmc_attach_bus(struct mmc_host *host, const struct mmc_bus_ops *ops); +void mmc_detach_bus(struct mmc_host *host); + +void __mmc_release_bus(struct mmc_host *host); + +static inline void mmc_bus_get(struct mmc_host *host) +{ + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + host->bus_refs++; + spin_unlock_irqrestore(&host->lock, flags); +} + +static inline void mmc_bus_put(struct mmc_host *host) +{ + unsigned long flags; + + spin_lock_irqsave(&host->lock, flags); + host->bus_refs--; + if ((host->bus_refs == 0) && host->bus_ops) + __mmc_release_bus(host); + spin_unlock_irqrestore(&host->lock, flags); +} + void mmc_set_chip_select(struct mmc_host *host, int mode); +void mmc_set_clock(struct mmc_host *host, unsigned int hz); +void mmc_set_bus_mode(struct mmc_host *host, unsigned int mode); +void mmc_set_bus_width(struct mmc_host *host, unsigned int width); +u32 mmc_select_voltage(struct mmc_host *host, u32 ocr); +void mmc_set_timing(struct mmc_host *host, unsigned int timing); + +struct mmc_card *mmc_alloc_card(struct mmc_host *host); static inline void mmc_delay(unsigned int ms) { |