diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/drivers/pc80/keyboard.c | 27 | ||||
| -rw-r--r-- | src/include/types.h | 4 |
2 files changed, 22 insertions, 9 deletions
diff --git a/src/drivers/pc80/keyboard.c b/src/drivers/pc80/keyboard.c index dd6321e139..5b686170c6 100644 --- a/src/drivers/pc80/keyboard.c +++ b/src/drivers/pc80/keyboard.c @@ -24,6 +24,7 @@ #include <device/device.h> #include <arch/io.h> #include <delay.h> +#include <types.h> #if CONFIG_HAVE_ACPI_RESUME #include <arch/acpi.h> #endif @@ -111,7 +112,7 @@ static int kbc_cleanup_buffers(void) return !!timeout; } -static int kbc_self_test(void) +static enum cb_err kbc_self_test(void) { u8 self_test; @@ -119,7 +120,7 @@ static int kbc_self_test(void) * Both input and output buffers must be empty. */ if (!kbc_cleanup_buffers()) - return 0; + return CB_KBD_CONTROLLER_FAILURE; /* reset/self test 8042 - send cmd 0xAA */ outb(KBC_CMD_SELF_TEST, KBD_COMMAND); @@ -127,7 +128,7 @@ static int kbc_self_test(void) if (!kbc_output_buffer_full()) { /* There probably is no keyboard controller. */ printk(BIOS_ERR, "Could not reset keyboard controller.\n"); - return 0; + return CB_KBD_CONTROLLER_FAILURE; } /* read self-test result, 0x55 is returned in the output buffer */ @@ -136,7 +137,7 @@ static int kbc_self_test(void) if (self_test != 0x55) { printk(BIOS_ERR, "Keyboard Controller self-test failed: 0x%x\n", self_test); - return 0; + return CB_KBD_CONTROLLER_FAILURE; } /* ensure the buffers are empty */ @@ -147,7 +148,7 @@ static int kbc_self_test(void) if (!kbc_output_buffer_full()) { printk(BIOS_ERR, "Keyboard Interface test timed out.\n"); - return 0; + return CB_KBD_CONTROLLER_FAILURE; } /* read test result, 0x00 should be returned in case of no failures */ @@ -156,10 +157,10 @@ static int kbc_self_test(void) if (self_test != 0x00) { printk(BIOS_ERR, "Keyboard Interface test failed: 0x%x\n", self_test); - return 0; + return CB_KBD_INTERFACE_FAILURE; } - return 1; + return CB_SUCCESS; } static u8 send_keyboard(u8 command) @@ -196,6 +197,8 @@ void pc_keyboard_init(struct pc_keyboard *keyboard) { u8 retries; u8 regval; + enum cb_err err; + if (!CONFIG_DRIVERS_PS2_KEYBOARD) return; @@ -207,7 +210,9 @@ void pc_keyboard_init(struct pc_keyboard *keyboard) printk(BIOS_DEBUG, "Keyboard init...\n"); /* Run a keyboard controller self-test */ - if (!kbc_self_test()) + err = kbc_self_test(); + /* Ignore iterface failure as it's non-fatal. */ + if (err != CB_SUCCESS && err != CB_KBD_INTERFACE_FAILURE) return; /* Enable keyboard interface - No IRQ */ @@ -308,8 +313,12 @@ void pc_keyboard_init(struct pc_keyboard *keyboard) */ void set_kbc_ps2_mode(void) { + enum cb_err err; + /* Run a keyboard controller self-test */ - if (!kbc_self_test()) + err = kbc_self_test(); + /* Ignore iterface failure as it's non-fatal. */ + if (err != CB_SUCCESS && err != CB_KBD_INTERFACE_FAILURE) return; /* Support PS/2 mode */ diff --git a/src/include/types.h b/src/include/types.h index d1f991eb5d..ef5edc1781 100644 --- a/src/include/types.h +++ b/src/include/types.h @@ -41,6 +41,10 @@ enum cb_err { CB_CMOS_OPTION_NOT_FOUND = -102, /**< Option string not found */ CB_CMOS_ACCESS_ERROR = -103, /**< CMOS access error */ CB_CMOS_CHECKSUM_INVALID = -104, /**< CMOS checksum is invalid */ + + /* Keyboard test failures */ + CB_KBD_CONTROLLER_FAILURE = -200, + CB_KBD_INTERFACE_FAILURE = -201 }; #endif /* __TYPES_H */ |