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payloads/libpayload/drivers/i8042: Add macros for i8042 commands

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This change adds macros for commands (written to 0x64) and keyboard
commands (written to 0x60) for 8042 controller.

BUG=b:110024487

Change-Id: I74b2388d048e35b5bdf5bd862d0975e88f1bd6af
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/27289
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
This commit is contained in:
Furquan Shaikh
2018-06-29 09:24:54 -07:00
committed by Patrick Georgi
parent 118fb60b3a
commit 1299dc107d
3 changed files with 87 additions and 14 deletions
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13
payloads/libpayload/drivers/i8042/i8042.c
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@@ -31,6 +31,8 @@
#include <libpayload.h>
#include <stddef.h>
#include "i8042.h"
/* Overflowing FIFO implementation */
struct fifo {
@@ -204,13 +206,13 @@ u8 i8042_probe(void)
kbc_init = 1;
/* Disable first device */
if (i8042_cmd(0xad) != 0) {
if (i8042_cmd(I8042_CMD_DIS_KB) != 0) {
kbc_init = 0;
return 0;
}
/* Disable second device */
if (i8042_cmd(0xa7) != 0) {
if (i8042_cmd(I8042_CMD_DIS_AUX) != 0) {
kbc_init = 0;
return 0;
}
@@ -220,17 +222,18 @@ u8 i8042_probe(void)
read_data();
/* Self test. */
if (i8042_cmd_with_response(0xaa) != 0x55) {
if (i8042_cmd_with_response(I8042_CMD_SELF_TEST)
!= I8042_SELF_TEST_RSP) {
kbc_init = 0;
return 0;
}
/* Test secondary port */
if (i8042_cmd_with_response(0xa9) == 0)
if (i8042_cmd_with_response(I8042_CMD_AUX_TEST) == 0)
aux_fifo = fifo_init(4 * 32);
/* Test first PS/2 port */
if (i8042_cmd_with_response(0xab) == 0)
if (i8042_cmd_with_response(I8042_CMD_KB_TEST) == 0)
ps2_fifo = fifo_init(2 * 16);
kbc_init = 0;