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Diffstat (limited to 'payloads')
-rw-r--r--payloads/libpayload/drivers/i8042/i8042.c11
1 files changed, 9 insertions, 2 deletions
diff --git a/payloads/libpayload/drivers/i8042/i8042.c b/payloads/libpayload/drivers/i8042/i8042.c
index e97fab8429..ee9f5fd405 100644
--- a/payloads/libpayload/drivers/i8042/i8042.c
+++ b/payloads/libpayload/drivers/i8042/i8042.c
@@ -197,23 +197,29 @@ u8 i8042_probe(void)
/* If 0x64 returns 0xff, then we have no keyboard
* controller */
- if (read_status() == 0xFF)
+ if (read_status() == 0xFF) {
+ printf("ERROR: No keyboard controller found!\n");
return 0;
+ }
- if (!i8042_wait_cmd_rdy())
+ if (!i8042_wait_cmd_rdy()) {
+ printf("ERROR: i8042_wait_cmd_rdy failed!\n");
return 0;
+ }
kbc_init = 1;
/* Disable first device */
if (i8042_cmd(I8042_CMD_DIS_KB) != 0) {
kbc_init = 0;
+ printf("ERROR: i8042_cmd I8042_CMD_DIS_KB failed!\n");
return 0;
}
/* Disable second device */
if (i8042_cmd(I8042_CMD_DIS_AUX) != 0) {
kbc_init = 0;
+ printf("ERROR: i8042_cmd I8042_CMD_DIS_AUX failed!\n");
return 0;
}
@@ -225,6 +231,7 @@ u8 i8042_probe(void)
if (i8042_cmd_with_response(I8042_CMD_SELF_TEST)
!= I8042_SELF_TEST_RSP) {
kbc_init = 0;
+ printf("ERROR: i8042_cmd I8042_CMD_SELF_TEST failed!\n");
return 0;
}