diff options
Diffstat (limited to 'payloads/libpayload/drivers')
| -rw-r--r-- | payloads/libpayload/drivers/i8042/i8042.h | 1 | ||||
| -rw-r--r-- | payloads/libpayload/drivers/i8042/keyboard.c | 7 |
2 files changed, 8 insertions, 0 deletions
diff --git a/payloads/libpayload/drivers/i8042/i8042.h b/payloads/libpayload/drivers/i8042/i8042.h index 643167ef40..e864ac9263 100644 --- a/payloads/libpayload/drivers/i8042/i8042.h +++ b/payloads/libpayload/drivers/i8042/i8042.h @@ -63,6 +63,7 @@ #define I8042_KBCMD_EN 0xf4 #define I8042_KBCMD_DEFAULT_DIS 0xf5 #define I8042_KBCMD_SET_DEFAULT 0xf6 +#define I8042_KBCMD_ACK 0xfa #define I8042_KBCMD_RESEND 0xfe #define I8042_KBCMD_RESET 0xff diff --git a/payloads/libpayload/drivers/i8042/keyboard.c b/payloads/libpayload/drivers/i8042/keyboard.c index cded638380..fea9e718dd 100644 --- a/payloads/libpayload/drivers/i8042/keyboard.c +++ b/payloads/libpayload/drivers/i8042/keyboard.c @@ -317,6 +317,13 @@ void keyboard_init(void) /* Enable first PS/2 port */ i8042_cmd(I8042_CMD_EN_KB); + /* Reset keyboard and self test (keyboard side) */ + ret = keyboard_cmd(I8042_KBCMD_RESET); + if (ret != I8042_KBCMD_ACK) { + printf("ERROR: Keyboard reset failed ACK: 0x%x\n", ret); + return; + } + /* Set scancode set 1 */ ret = keyboard_cmd(I8042_KBCMD_SET_SCANCODE); if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) |