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 | 72 |
2 files changed, 51 insertions, 22 deletions
diff --git a/payloads/libpayload/drivers/i8042/i8042.h b/payloads/libpayload/drivers/i8042/i8042.h index 643167ef40..f03956928f 100644 --- a/payloads/libpayload/drivers/i8042/i8042.h +++ b/payloads/libpayload/drivers/i8042/i8042.h @@ -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 diff --git a/payloads/libpayload/drivers/i8042/keyboard.c b/payloads/libpayload/drivers/i8042/keyboard.c index f9932ed4ed..4b4a56987a 100644 --- a/payloads/libpayload/drivers/i8042/keyboard.c +++ b/payloads/libpayload/drivers/i8042/keyboard.c @@ -312,50 +312,78 @@ static struct console_input_driver cons = { .input_type = CONSOLE_INPUT_TYPE_EC, }; -void keyboard_init(void) +/* Enable keyboard translated */ +static int enable_translated(void) { - unsigned int ret; - map = &keyboard_layouts[0]; - - /* Initialized keyboard controller. */ - if (!i8042_probe() || !i8042_has_ps2()) - return; - - /* Empty keyboard buffer */ - while (keyboard_havechar()) - keyboard_getchar(); - - /* Enable first PS/2 port */ - i8042_cmd(I8042_CMD_EN_KB); + 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 */ +/* Set scancode set 1 */ +static int set_scancode_set(void) +{ + unsigned int ret; ret = keyboard_cmd(I8042_KBCMD_SET_SCANCODE); - if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) { + if (!ret) { printf("ERROR: Keyboard set scancode failed!\n"); - return; + return ret; } ret = keyboard_cmd(I8042_SCANCODE_SET_1); - if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) { + if (!ret) { printf("ERROR: Keyboard scancode set#1 failed!\n"); - return; + return ret; } /* * Set default parameters. * Fix for broken QEMU ps/2 make scancodes. */ - ret = keyboard_cmd(0xf6); + ret = keyboard_cmd(I8042_KBCMD_SET_DEFAULT); if (!ret) { printf("ERROR: Keyboard set default params failed!\n"); - return; + return ret; } /* Enable scanning */ ret = keyboard_cmd(I8042_KBCMD_EN); - if (!ret && !CONFIG(LP_PC_KEYBOARD_IGNORE_INIT_FAILURE)) { + if (!ret) { printf("ERROR: Keyboard enable scanning failed!\n"); + return ret; + } + + return ret; +} + +void keyboard_init(void) +{ + map = &keyboard_layouts[0]; + + /* Initialized keyboard controller. */ + if (!i8042_probe() || !i8042_has_ps2()) return; + + /* Empty keyboard buffer */ + while (keyboard_havechar()) + keyboard_getchar(); + + /* Enable first PS/2 port */ + i8042_cmd(I8042_CMD_EN_KB); + + if (CONFIG(LP_PC_KEYBOARD_AT_TRANSLATED)) { + if (!enable_translated()) + return; + } else { + if (!set_scancode_set()) + return; } console_add_input_driver(&cons); |