In some cases it is useful to be able to supply a binary value to a command. Use the '0y' prefix for this (binarY).
Signed-off-by: Simon Glass sjg@chromium.org ---
doc/usage/cmdline.rst | 6 ++++++ lib/strto.c | 3 +++ test/str_ut.c | 8 ++++++++ 3 files changed, 17 insertions(+)
diff --git a/doc/usage/cmdline.rst b/doc/usage/cmdline.rst index 7f2cfad2a0f..05ce65958c4 100644 --- a/doc/usage/cmdline.rst +++ b/doc/usage/cmdline.rst @@ -96,3 +96,9 @@ convenient::
=> i2c speed 0x30000 Setting bus speed to 196608 Hz + +U-Boot also supports a `0y` for binary base 2 ("binarY"):: + + => mw 100 0y11010011 + => md 100 1 + 00000100: 000000d3 .... diff --git a/lib/strto.c b/lib/strto.c index 120214d83f8..a7531e877f5 100644 --- a/lib/strto.c +++ b/lib/strto.c @@ -26,6 +26,9 @@ static const char *_parse_integer_fixup_radix(const char *s, uint *basep) } else if (ch == 'm') { *basep = 10; s += 2; + } else if (ch == 'y') { + *basep = 2; + s += 2; } else if (!*basep) { /* Only select octal if we don't have a base */ *basep = 8; diff --git a/test/str_ut.c b/test/str_ut.c index 716f7c45c38..731ef0c49ae 100644 --- a/test/str_ut.c +++ b/test/str_ut.c @@ -117,6 +117,10 @@ static int str_simple_strtoul(struct unit_test_state *uts) ut_assertok(run_strtoul(uts, "0x123fg", 0, 0x123f, 6, false)); ut_assertok(run_strtoul(uts, "0m123a", 16, 123, 5, false));
+ /* check binary */ + ut_assertok(run_strtoul(uts, "1011b", 2, 0xb, 4, false)); + ut_assertok(run_strtoul(uts, "0y111more", 0, 7, 5, false)); + return 0; } STR_TEST(str_simple_strtoul, 0); @@ -186,6 +190,10 @@ static int str_simple_strtoull(struct unit_test_state *uts) ut_assertok(run_strtoull(uts, "0x123fg", 0, 0x123f, 6, false)); ut_assertok(run_strtoull(uts, "0m123a", 16, 123, 5, false));
+ /* check binary */ + ut_assertok(run_strtoull(uts, "1011b", 2, 0xb, 4, false)); + ut_assertok(run_strtoull(uts, "0y111more", 0, 7, 5, false)); + return 0; } STR_TEST(str_simple_strtoull, 0);