mmc: basic SDIO device model

Add the sdio bus type and basic device handling.

Signed-off-by: Pierre Ossman <drzeus@drzeus.cx>

1 files changed, 7 insertions, 0 deletions

diff --git a/include/linux/mmc/card.h b/include/linux/mmc/card.h
index 43480ebebf9a..9f5f74482d98 100644
--- a/include/linux/mmc/card.h
+++ b/include/linux/mmc/card.h
@@ -56,6 +56,9 @@ struct sd_switch_caps {
 };
 
 struct mmc_host;
+struct sdio_func;
+
+#define SDIO_MAX_FUNCS          7
 
 /*
  * MMC device
@@ -73,6 +76,7 @@ struct mmc_card {
 #define MMC_STATE_READONLY      (1<<1)          /* card is read-only */
 #define MMC_STATE_HIGHSPEED     (1<<2)          /* card is in high speed mode */
 #define MMC_STATE_BLOCKADDR     (1<<3)          /* card uses block-addressing */
+
         u32                     raw_cid[4];     /* raw card CID */
         u32                     raw_csd[4];     /* raw card CSD */
         u32                     raw_scr[2];     /* raw card SCR */
@@ -81,6 +85,9 @@ struct mmc_card {
         struct mmc_ext_csd      ext_csd;        /* mmc v4 extended card specific */
         struct sd_scr           scr;            /* extra SD information */
         struct sd_switch_caps   sw_caps;        /* switch (CMD6) caps */
+
+        unsigned int            sdio_funcs;     /* number of SDIO functions */
+        struct sdio_func        *sdio_func[SDIO_MAX_FUNCS]; /* SDIO functions (devices) */
 };
 
 #define mmc_card_mmc(c)         ((c)->type == MMC_TYPE_MMC)