Currently it is possible to cancel loadx and loady commands by pressing CTRL+X (CAN character) at least 3 times quickly.
All other U-Boot commands, including loadb and loads can be cancelled by CTRL+C. So allow it also in xyz-modem code used by loadx and loady commands. Implement it by handling CTRL+C (ETX character) in the same way as CTRL+X (CAN character).
Due to how x/y-modem protocol works, it is required to press CTRL+C or CTRL+X at least 3 times quickly.
Signed-off-by: Pali Rohár pali@kernel.org --- common/xyzModem.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/common/xyzModem.c b/common/xyzModem.c index c200c9ff9177..ece25acb183b 100644 --- a/common/xyzModem.c +++ b/common/xyzModem.c @@ -32,6 +32,7 @@ /* Values magic to the protocol */ #define SOH 0x01 #define STX 0x02 +#define ETX 0x03 /* ^C for interrupt */ #define EOT 0x04 #define ACK 0x06 #define BSP 0x08 @@ -283,6 +284,7 @@ xyzModem_get_hdr (void) hdr_found = true; break; case CAN: + case ETX: xyz.total_CAN++; ZM_DEBUG (zm_dump (__LINE__)); if (++can_total == xyzModem_CAN_COUNT)