diff options
| author |   Pali Rohár <pali@kernel.org> | 2020-07-27 15:38:37 +0200 |
|---|---|---|
| committer |   Ulf Hansson <ulf.hansson@linaro.org> | 2020-09-07 09:11:29 +0200 |
| commit | b698f6abb7b3de2fd04ebbb86527ab1ea95405e0 (patch) | |
| tree | 400a4a2fc3e2721a837d5cf4c262bf03971f2faf /drivers/mmc/core/sdio.c | |
| parent | mmc: sdio: Extend sdio_config_attr macro and use it also for modalias (diff) | |
| download | linux-dev-b698f6abb7b3de2fd04ebbb86527ab1ea95405e0.tar.xz linux-dev-b698f6abb7b3de2fd04ebbb86527ab1ea95405e0.zip | |
mmc: sdio: Export SDIO revision and info strings to userspace
For SDIO functions, SDIO cards and SD COMBO cards are exported revision
number and info strings from CISTPL_VERS_1 structure. Revision number
should indicate compliance of standard and info strings should contain
product information in same format as product information for PCMCIA cards.
Product information for PCMCIA cards should contain following strings in
this order: Manufacturer, Product Name, Lot number, Programming Conditions.
Note that not all SDIO cards export all those info strings in that order as
described in PCMCIA Metaformat Specification.
Signed-off-by: Pali Rohár <pali@kernel.org>
Link: https://lore.kernel.org/r/20200727133837.19086-5-pali@kernel.org
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Diffstat (limited to 'drivers/mmc/core/sdio.c')
| -rw-r--r-- | drivers/mmc/core/sdio.c | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c index 7b40553d3934..694a212cbe25 100644 --- a/drivers/mmc/core/sdio.c +++ b/drivers/mmc/core/sdio.c @@ -29,12 +29,36 @@ MMC_DEV_ATTR(vendor, "0x%04x\n", card->cis.vendor); MMC_DEV_ATTR(device, "0x%04x\n", card->cis.device); +MMC_DEV_ATTR(revision, "%u.%u\n", card->major_rev, card->minor_rev); MMC_DEV_ATTR(ocr, "0x%08x\n", card->ocr); MMC_DEV_ATTR(rca, "0x%04x\n", card->rca); +#define sdio_info_attr(num) \ +static ssize_t info##num##_show(struct device *dev, struct device_attribute *attr, char *buf) \ +{ \ + struct mmc_card *card = mmc_dev_to_card(dev); \ + \ + if (num > card->num_info) \ + return -ENODATA; \ + if (!card->info[num-1][0]) \ + return 0; \ + return sprintf(buf, "%s\n", card->info[num-1]); \ +} \ +static DEVICE_ATTR_RO(info##num) + +sdio_info_attr(1); +sdio_info_attr(2); +sdio_info_attr(3); +sdio_info_attr(4); + static struct attribute *sdio_std_attrs[] = { &dev_attr_vendor.attr, &dev_attr_device.attr, + &dev_attr_revision.attr, + &dev_attr_info1.attr, + &dev_attr_info2.attr, + &dev_attr_info3.attr, + &dev_attr_info4.attr, &dev_attr_ocr.attr, &dev_attr_rca.attr, NULL, |