diff options
| author | Eric Lai <ericr_lai@compal.corp-partner.google.com> | 2019-12-13 17:37:45 +0800 |
|---|---|---|
| committer | Patrick Georgi <pgeorgi@google.com> | 2019-12-20 17:43:17 +0000 |
| commit | b2f3698781f8a77e4d08cdde841d8a0785c3592b (patch) | |
| tree | dc091185ecdbf9eabd5982ce7af627bbeed812a8 /payloads/libpayload/drivers | |
| parent | fedaac84da5bcfd035e0e348150db8cf3d800726 (diff) | |
libpayload/drivers/i8042: add error messages to i8042_probe
Print error message before error return for better debugging.
Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: I52039dcab72c6295dfb6b887a7000a6d2bd050ee
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37689
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Mathew King <mathewk@chromium.org>
Diffstat (limited to 'payloads/libpayload/drivers')
| -rw-r--r-- | payloads/libpayload/drivers/i8042/i8042.c | 11 |
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; } |