diff options
| author | Simon Glass | 2021-07-05 16:32:59 -0600 |
|---|---|---|
| committer | Simon Glass | 2021-07-21 10:27:35 -0600 |
| commit | 96f37b092fdbb604e43c313265995d72ff1a82fe (patch) | |
| tree | 45bb72df5da51250ee48c59efe11c9369bb418e2 /test | |
| parent | 6b165ab2b7b1dc89357afbe86c1977addf5aed3b (diff) | |
blk: Support iteration
It is useful to be able to iterate over block devices. Typically there
are fixed and removable devices. For security reasons it is sometimes
useful to ignore removable devices since they are under user control.
Add iterators which support selecting the block-device type.
Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'test')
| -rw-r--r-- | test/dm/blk.c | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/test/dm/blk.c b/test/dm/blk.c index b7f4304e9e9..deccf05289b 100644 --- a/test/dm/blk.c +++ b/test/dm/blk.c @@ -162,3 +162,58 @@ static int dm_test_blk_get_from_parent(struct unit_test_state *uts) return 0; } DM_TEST(dm_test_blk_get_from_parent, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); + +/* Test iteration through block devices */ +static int dm_test_blk_iter(struct unit_test_state *uts) +{ + struct udevice *dev; + int i; + + /* + * See sandbox test.dts - it has: + * + * mmc0 - removable + * mmc1 - removable + * mmc2 - fixed + */ + ut_assertok(blk_first_device_err(BLKF_FIXED, &dev)); + ut_asserteq_str("mmc2.blk", dev->name); + ut_asserteq(-ENODEV, blk_next_device_err(BLKF_FIXED, &dev)); + + ut_assertok(blk_first_device_err(BLKF_REMOVABLE, &dev)); + ut_asserteq_str("mmc1.blk", dev->name); + ut_assertok(blk_next_device_err(BLKF_REMOVABLE, &dev)); + ut_asserteq_str("mmc0.blk", dev->name); + ut_asserteq(-ENODEV, blk_next_device_err(BLKF_REMOVABLE, &dev)); + + ut_assertok(blk_first_device_err(BLKF_BOTH, &dev)); + ut_asserteq_str("mmc2.blk", dev->name); + ut_assertok(blk_next_device_err(BLKF_BOTH, &dev)); + ut_asserteq_str("mmc1.blk", dev->name); + ut_assertok(blk_next_device_err(BLKF_BOTH, &dev)); + ut_asserteq_str("mmc0.blk", dev->name); + ut_asserteq(-ENODEV, blk_next_device_err(BLKF_FIXED, &dev)); + + ut_asserteq(1, blk_count_devices(BLKF_FIXED)); + ut_asserteq(2, blk_count_devices(BLKF_REMOVABLE)); + ut_asserteq(3, blk_count_devices(BLKF_BOTH)); + + i = 0; + blk_foreach_probe(BLKF_FIXED, dev) + ut_asserteq_str((i++, "mmc2.blk"), dev->name); + ut_asserteq(1, i); + + i = 0; + blk_foreach_probe(BLKF_REMOVABLE, dev) + ut_asserteq_str(i++ ? "mmc0.blk" : "mmc1.blk", dev->name); + ut_asserteq(2, i); + + i = 0; + blk_foreach_probe(BLKF_BOTH, dev) + ut_asserteq_str((++i == 1 ? "mmc2.blk" : i == 2 ? + "mmc1.blk" : "mmc0.blk"), dev->name); + ut_asserteq(3, i); + + return 0; +} +DM_TEST(dm_test_blk_iter, UT_TESTF_SCAN_PDATA | UT_TESTF_SCAN_FDT); |