diff options
| -rw-r--r-- | drivers/mmc/core/sdio.c | 38 | ||||
| -rw-r--r-- | include/linux/mmc/sdio_func.h | 5 |
2 files changed, 43 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 7ce3e3104d2..be623856f28 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -23,8 +23,34 @@ #include "sd_ops.h" #include "sdio_ops.h" +static int sdio_read_fbr(struct sdio_func *func) +{ + int ret; + unsigned char data; + + ret = mmc_io_rw_direct(func->card, 0, 0, + func->num * 0x100 + SDIO_FBR_STD_IF, 0, &data); + if (ret) + goto out; + + data &= 0x0f; + + if (data == 0x0f) { + ret = mmc_io_rw_direct(func->card, 0, 0, + func->num * 0x100 + SDIO_FBR_STD_IF_EXT, 0, &data); + if (ret) + goto out; + } + + func->class = data; + +out: + return ret; +} + static int sdio_init_func(struct mmc_card *card, unsigned int fn) { + int ret; struct sdio_func *func; BUG_ON(fn > SDIO_MAX_FUNCS); @@ -35,9 +61,21 @@ static int sdio_init_func(struct mmc_card *card, unsigned int fn) func->num = fn; + ret = sdio_read_fbr(func); + if (ret) + goto fail; + card->sdio_func[fn - 1] = func; return 0; + +fail: + /* + * It is okay to remove the function here even though we hold + * the host lock as we haven't registered the device yet. + */ + sdio_remove_func(func); + return ret; } static int sdio_read_cccr(struct mmc_card *card) diff --git a/include/linux/mmc/sdio_func.h b/include/linux/mmc/sdio_func.h index 3365fef5f71..4164809a8e6 100644 --- a/include/linux/mmc/sdio_func.h +++ b/include/linux/mmc/sdio_func.h @@ -21,6 +21,11 @@ struct sdio_func { struct mmc_card *card; /* the card this device belongs to */ struct device dev; /* the device */ unsigned int num; /* function number */ + + unsigned char class; /* standard interface class */ + unsigned short vendor; /* vendor id */ + unsigned short device; /* device id */ + unsigned int state; /* function state */ #define SDIO_STATE_PRESENT (1<<0) /* present in sysfs */ }; |