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libpayload/drivers/i8042: Add AT translated Keyboard support 

Wilco device uses the AT translated keyboard and doesn't need to set
scancode set. Remove the ignore flag and put into translation mode
instead.

BUG=b:145130110
TEST=Draillion keyboard is usable on every boot.

Signed-off-by: Eric Lai <ericr_lai@compal.corp-partner.google.com>
Change-Id: Ie1053e24e44c5bad28b56cc92d091e24f3d9b6fd
Reviewed-on: https://review.coreboot.org/c/coreboot/+/37594
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Mathew King <mathewk@chromium.org>
This commit is contained in:
Eric Lai 2019-12-09 15:05:12 +08:00 committed by Patrick Georgi
parent 6cfda93c6c
commit b643d3df8a
3 changed files with 62 additions and 29 deletions
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4
payloads/libpayload/Kconfig
View File

@ -347,6 +347,10 @@ config PC_KEYBOARD_IGNORE_INIT_FAILURE
bool "Ignore keyboard failures during init and always add input device"
default n
config PC_KEYBOARD_AT_TRANSLATED
bool "AT Translation keyboard device"
default n
config PC_KEYBOARD_LAYOUT_US
bool "English (US) keyboard layout"
depends on PC_KEYBOARD

1
payloads/libpayload/drivers/i8042/i8042.h
View File

@ -33,6 +33,7 @@
/* Port 0x64 commands */
#define I8042_CMD_RD_CMD_BYTE 0x20
#define I8042_CMD_WR_CMD_BYTE 0x60
#define I8042_CMD_BYTE_XLATE (1 << 6)
#define I8042_CMD_DIS_AUX 0xa7
#define I8042_CMD_EN_AUX 0xa8
#define I8042_CMD_AUX_TEST 0xa9

82
payloads/libpayload/drivers/i8042/keyboard.c
View File

@ -312,9 +312,59 @@ static struct console_input_driver cons = {
.input_type = CONSOLE_INPUT_TYPE_EC,
};
void keyboard_init(void)
/* Enable keyboard translated */
static int enable_translated(void)
{
if (!i8042_cmd(I8042_CMD_RD_CMD_BYTE)) {
int cmd = i8042_read_data_ps2();
cmd |= I8042_CMD_BYTE_XLATE;
if (!i8042_cmd(I8042_CMD_WR_CMD_BYTE))
i8042_write_data(cmd);
} else {
printf("ERROR: Keyboard i8042_cmd failed!\n");
return 0;
}
return 1;
}
/* Set scancode set 1 */
static int set_scancode_set(void)
{
unsigned int ret;
ret = keyboard_cmd(I8042_KBCMD_SET_SCANCODE);
if (!ret) {
printf("ERROR: Keyboard set scancode failed!\n");
return ret;
}
ret = keyboard_cmd(I8042_SCANCODE_SET_1);
if (!ret) {
printf("ERROR: Keyboard scancode set#1 failed!\n");
return ret;
}
/*
* Set default parameters.
* Fix for broken QEMU ps/2 make scancodes.
*/
ret = keyboard_cmd(I8042_KBCMD_SET_DEFAULT);
if (!ret) {
printf("ERROR: Keyboard set default params failed!\n");
return ret;
}
/* Enable scanning */
ret = keyboard_cmd(I8042_KBCMD_EN);
if (!ret) {
printf("ERROR: Keyboard enable scanning failed!\n");
return ret;
}
return ret;
}
void keyboard_init(void)
{
map = &keyboard_layouts[0];
/* Initialized keyboard controller. */
@ -328,33 +378,11 @@ void keyboard_init(void)
/* Enable first PS/2 port */
i8042_cmd(I8042_CMD_EN_KB);
/* Set scancode set 1 */
ret = keyboard_cmd(I8042_KBCMD_SET_SCANCODE);
if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) {
printf("ERROR: Keyboard set scancode failed!\n");
if (CONFIG(LP_PC_KEYBOARD_AT_TRANSLATED)) {
if (!enable_translated())
return;
}
ret = keyboard_cmd(I8042_SCANCODE_SET_1);
if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) {
printf("ERROR: Keyboard scancode set#1 failed!\n");
return;
}
/*
* Set default parameters.
* Fix for broken QEMU ps/2 make scancodes.
*/
ret = keyboard_cmd(0xf6);
if (!ret) {
printf("ERROR: Keyboard set default params failed!\n");
return;
}
/* Enable scanning */
ret = keyboard_cmd(I8042_KBCMD_EN);
if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) {
printf("ERROR: Keyboard enable scanning failed!\n");
} else {
if (!set_scancode_set())
return;
}