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mmc: Add concept of an 'embedded' SDIO device.

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This is required to support chips which use SDIO for signaling/
communication but do not implement the various card enumeration registers
as required for full SD / SDIO cards.

mmc: sdio: Fix bug where we're freeing the CIS tables we never allocated when using EMBEDDED_SDIO
mmc: Add max_blksize to embedded SDIO data

Signed-off-by: San Mehat <san@google.com>
This commit is contained in:
San Mehat
2008-04-14 15:22:49 -07:00
committed by Colin Cross
parent c80f54655e
commit e01587a794
7 changed files with 129 additions and 16 deletions
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17
include/linux/mmc/host.h
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@@ -319,6 +319,15 @@ struct mmc_host {
unsigned int actual_clock; /* Actual HC clock rate */
#ifdef CONFIG_MMC_EMBEDDED_SDIO
struct {
struct sdio_cis *cis;
struct sdio_cccr *cccr;
struct sdio_embedded_func *funcs;
int num_funcs;
} embedded_sdio_data;
#endif
unsigned long private[0] ____cacheline_aligned;
};
@@ -327,6 +336,14 @@ extern int mmc_add_host(struct mmc_host *);
extern void mmc_remove_host(struct mmc_host *);
extern void mmc_free_host(struct mmc_host *);
#ifdef CONFIG_MMC_EMBEDDED_SDIO
extern void mmc_set_embedded_sdio_data(struct mmc_host *host,
struct sdio_cis *cis,
struct sdio_cccr *cccr,
struct sdio_embedded_func *funcs,
int num_funcs);
#endif
static inline void *mmc_priv(struct mmc_host *host)
{
return (void *)host->private;

8
include/linux/mmc/sdio_func.h
View File

@@ -22,6 +22,14 @@ struct sdio_func;
typedef void (sdio_irq_handler_t)(struct sdio_func *);
/*
* Structure used to hold embedded SDIO device data from platform layer
*/
struct sdio_embedded_func {
uint8_t f_class;
uint32_t f_maxblksize;
};
/*
* SDIO function CIS tuple (unknown to the core)
*/