diff options
Diffstat (limited to 'drivers/block/blk-uclass.c')
-rw-r--r-- | drivers/block/blk-uclass.c | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/drivers/block/blk-uclass.c b/drivers/block/blk-uclass.c index dfc0d46970..83682dcc18 100644 --- a/drivers/block/blk-uclass.c +++ b/drivers/block/blk-uclass.c @@ -540,6 +540,55 @@ int blk_next_free_devnum(enum if_type if_type) return ret + 1; } +static int blk_flags_check(struct udevice *dev, enum blk_flag_t req_flags) +{ + const struct blk_desc *desc = dev_get_uclass_plat(dev); + enum blk_flag_t flags; + + flags = desc->removable ? BLKF_REMOVABLE : BLKF_FIXED; + + return flags & req_flags ? 0 : 1; +} + +int blk_first_device_err(enum blk_flag_t flags, struct udevice **devp) +{ + int ret; + + for (ret = uclass_first_device_err(UCLASS_BLK, devp); + !ret; + ret = uclass_next_device_err(devp)) { + if (!blk_flags_check(*devp, flags)) + return 0; + } + + return -ENODEV; +} + +int blk_next_device_err(enum blk_flag_t flags, struct udevice **devp) +{ + int ret; + + for (ret = uclass_next_device_err(devp); + !ret; + ret = uclass_next_device_err(devp)) { + if (!blk_flags_check(*devp, flags)) + return 0; + } + + return -ENODEV; +} + +int blk_count_devices(enum blk_flag_t flag) +{ + struct udevice *dev; + int count = 0; + + blk_foreach_probe(flag, dev) + count++; + + return count; +} + static int blk_claim_devnum(enum if_type if_type, int devnum) { struct udevice *dev; |