In the extended text input protocol CTRL-A - CTRL-Z have to be signaled as Unicode characters a-z or A-Z depending on the shift state and not as 0x01 to 0x1a.

This patch is required for using the EFI shell `edit` command.

Signed-off-by: Heinrich Schuchardt xypron.glpk@gmx.de --- lib/efi_loader/efi_console.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+)

diff --git a/lib/efi_loader/efi_console.c b/lib/efi_loader/efi_console.c index 8e0965bfc89..051fc1d339f 100644 --- a/lib/efi_loader/efi_console.c +++ b/lib/efi_loader/efi_console.c @@ -797,9 +797,26 @@ static efi_status_t EFIAPI efi_cin_read_key_stroke_ex( ret = EFI_NOT_READY; goto out; } + /* + * CTRL+A - CTRL+Z have to be signaled as a - z. + * SHIFT+CTRL+A - SHIFT+CTRL+Z have to be signaled as A - Z. + */ + switch (next_key.key.unicode_char) { + case 0x01 ... 0x07: + case 0x0b ... 0x0c: + case 0x0e ... 0x1a: + if (!(next_key.key_state.key_toggle_state & + EFI_CAPS_LOCK_ACTIVE) ^ + !(next_key.key_state.key_shift_state & + (EFI_LEFT_SHIFT_PRESSED | EFI_RIGHT_SHIFT_PRESSED))) + next_key.key.unicode_char += 0x40; + else + next_key.key.unicode_char += 0x60; + } *key_data = next_key; key_available = false; efi_con_in.wait_for_key->is_signaled = false; + out: return EFI_EXIT(ret); } -- 2.20.1