diff options
Diffstat (limited to 'lib/efi_loader/helloworld.c')
| -rw-r--r-- | lib/efi_loader/helloworld.c | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/lib/efi_loader/helloworld.c b/lib/efi_loader/helloworld.c index 586177de0c8..d10a5229f74 100644 --- a/lib/efi_loader/helloworld.c +++ b/lib/efi_loader/helloworld.c @@ -72,6 +72,33 @@ static void uint2dec(u32 value, u16 **buf) } /** + * Print an unsigned 32bit value as hexadecimal number to an u16 string + * + * @value: value to be printed + * @buf: pointer to buffer address + * on return position of terminating zero word + */ +static void uint2hex(u32 value, u16 **buf) +{ + u16 *pos = *buf; + int i; + u16 c; + + for (i = 0; i < 8; ++i) { + /* Write current digit */ + c = value >> 28; + value <<= 4; + if (c < 10) + c += '0'; + else + c += 'a' - 10; + *pos++ = c; + } + *pos = 0; + *buf = pos; +} + +/** * print_uefi_revision() - print UEFI revision number */ static void print_uefi_revision(void) @@ -96,6 +123,16 @@ static void print_uefi_revision(void) con_out->output_string(con_out, u"Running on UEFI "); con_out->output_string(con_out, rev); con_out->output_string(con_out, u"\r\n"); + + con_out->output_string(con_out, u"Firmware vendor: "); + con_out->output_string(con_out, systable->fw_vendor); + con_out->output_string(con_out, u"\r\n"); + + buf = rev; + uint2hex(systable->fw_revision, &buf); + con_out->output_string(con_out, u"Firmware revision: "); + con_out->output_string(con_out, rev); + con_out->output_string(con_out, u"\r\n"); } /** |