diff options
Diffstat (limited to 'include/linux/mmc')
| -rw-r--r-- | include/linux/mmc/core.h | 1 | ||||
| -rw-r--r-- | include/linux/mmc/host.h | 32 | ||||
| -rw-r--r-- | include/linux/mmc/mmc.h | 1 | ||||
| -rw-r--r-- | include/linux/mmc/sdio_func.h | 21 |
4 files changed, 39 insertions, 16 deletions
diff --git a/include/linux/mmc/core.h b/include/linux/mmc/core.h index d0c3abe..143cebf 100644 --- a/include/linux/mmc/core.h +++ b/include/linux/mmc/core.h @@ -135,6 +135,7 @@ extern int mmc_wait_for_app_cmd(struct mmc_host *, struct mmc_card *, struct mmc_command *, int); extern void mmc_set_data_timeout(struct mmc_data *, const struct mmc_card *); +extern unsigned int mmc_align_data_size(struct mmc_card *, unsigned int); extern int __mmc_claim_host(struct mmc_host *host, atomic_t *abort); extern void mmc_release_host(struct mmc_host *host); diff --git a/include/linux/mmc/host.h b/include/linux/mmc/host.h index 7ab962f..10a2080 100644 --- a/include/linux/mmc/host.h +++ b/include/linux/mmc/host.h @@ -51,8 +51,30 @@ struct mmc_ios { struct mmc_host_ops { void (*request)(struct mmc_host *host, struct mmc_request *req); + /* + * Avoid calling these three functions too often or in a "fast path", + * since underlaying controller might implement them in an expensive + * and/or slow way. + * + * Also note that these functions might sleep, so don't call them + * in the atomic contexts! + * + * Return values for the get_ro callback should be: + * 0 for a read/write card + * 1 for a read-only card + * -ENOSYS when not supported (equal to NULL callback) + * or a negative errno value when something bad happened + * + * Return values for the get_ro callback should be: + * 0 for a absent card + * 1 for a present card + * -ENOSYS when not supported (equal to NULL callback) + * or a negative errno value when something bad happened + */ void (*set_ios)(struct mmc_host *host, struct mmc_ios *ios); int (*get_ro)(struct mmc_host *host); + int (*get_cd)(struct mmc_host *host); + void (*enable_sdio_irq)(struct mmc_host *host, int enable); }; @@ -89,11 +111,11 @@ struct mmc_host { unsigned long caps; /* Host capabilities */ #define MMC_CAP_4_BIT_DATA (1 << 0) /* Can the host do 4 bit transfers */ -#define MMC_CAP_MULTIWRITE (1 << 1) /* Can accurately report bytes sent to card on error */ -#define MMC_CAP_MMC_HIGHSPEED (1 << 2) /* Can do MMC high-speed timing */ -#define MMC_CAP_SD_HIGHSPEED (1 << 3) /* Can do SD high-speed timing */ -#define MMC_CAP_SDIO_IRQ (1 << 4) /* Can signal pending SDIO IRQs */ -#define MMC_CAP_SPI (1 << 5) /* Talks only SPI protocols */ +#define MMC_CAP_MMC_HIGHSPEED (1 << 1) /* Can do MMC high-speed timing */ +#define MMC_CAP_SD_HIGHSPEED (1 << 2) /* Can do SD high-speed timing */ +#define MMC_CAP_SDIO_IRQ (1 << 3) /* Can signal pending SDIO IRQs */ +#define MMC_CAP_SPI (1 << 4) /* Talks only SPI protocols */ +#define MMC_CAP_NEEDS_POLL (1 << 5) /* Needs polling for card-detection */ /* host specific block data */ unsigned int max_seg_size; /* see blk_queue_max_segment_size */ diff --git a/include/linux/mmc/mmc.h b/include/linux/mmc/mmc.h index 4236fbf..14b81f3 100644 --- a/include/linux/mmc/mmc.h +++ b/include/linux/mmc/mmc.h @@ -16,7 +16,6 @@ * Based strongly on code by: * * Author: Yong-iL Joh <tolkien@mizi.com> - * Date : $Date: 2002/06/18 12:37:30 $ * * Author: Andrew Christian * 15 May 2002 diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index b050f4d..07bee4a 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -1,7 +1,7 @@ /* * include/linux/mmc/sdio_func.h * - * Copyright 2007 Pierre Ossman + * Copyright 2007-2008 Pierre Ossman * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -46,6 +46,8 @@ struct sdio_func { unsigned max_blksize; /* maximum block size */ unsigned cur_blksize; /* current block size */ + unsigned enable_timeout; /* max enable timeout in msec */ + unsigned int state; /* function state */ #define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */ @@ -120,23 +122,22 @@ extern int sdio_set_block_size(struct sdio_func *func, unsigned blksz); extern int sdio_claim_irq(struct sdio_func *func, sdio_irq_handler_t *handler); extern int sdio_release_irq(struct sdio_func *func); -extern unsigned char sdio_readb(struct sdio_func *func, - unsigned int addr, int *err_ret); -extern unsigned short sdio_readw(struct sdio_func *func, - unsigned int addr, int *err_ret); -extern unsigned long sdio_readl(struct sdio_func *func, - unsigned int addr, int *err_ret); +extern unsigned int sdio_align_size(struct sdio_func *func, unsigned int sz); + +extern u8 sdio_readb(struct sdio_func *func, unsigned int addr, int *err_ret); +extern u16 sdio_readw(struct sdio_func *func, unsigned int addr, int *err_ret); +extern u32 sdio_readl(struct sdio_func *func, unsigned int addr, int *err_ret); extern int sdio_memcpy_fromio(struct sdio_func *func, void *dst, unsigned int addr, int count); extern int sdio_readsb(struct sdio_func *func, void *dst, unsigned int addr, int count); -extern void sdio_writeb(struct sdio_func *func, unsigned char b, +extern void sdio_writeb(struct sdio_func *func, u8 b, unsigned int addr, int *err_ret); -extern void sdio_writew(struct sdio_func *func, unsigned short b, +extern void sdio_writew(struct sdio_func *func, u16 b, unsigned int addr, int *err_ret); -extern void sdio_writel(struct sdio_func *func, unsigned long b, +extern void sdio_writel(struct sdio_func *func, u32 b, unsigned int addr, int *err_ret); extern int sdio_memcpy_toio(struct sdio_func *func, unsigned int addr, |
