payloads/libpayload/drivers/i8042: Add macros for i8042 commands
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>
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@ -31,6 +31,8 @@
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#include <libpayload.h>
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#include <libpayload.h>
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#include <stddef.h>
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#include <stddef.h>
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#include "i8042.h"
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/* Overflowing FIFO implementation */
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/* Overflowing FIFO implementation */
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struct fifo {
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struct fifo {
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@ -204,13 +206,13 @@ u8 i8042_probe(void)
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kbc_init = 1;
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kbc_init = 1;
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/* Disable first device */
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/* Disable first device */
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if (i8042_cmd(0xad) != 0) {
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if (i8042_cmd(I8042_CMD_DIS_KB) != 0) {
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kbc_init = 0;
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kbc_init = 0;
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return 0;
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return 0;
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}
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}
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/* Disable second device */
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/* Disable second device */
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if (i8042_cmd(0xa7) != 0) {
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if (i8042_cmd(I8042_CMD_DIS_AUX) != 0) {
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kbc_init = 0;
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kbc_init = 0;
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return 0;
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return 0;
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}
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}
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@ -220,17 +222,18 @@ u8 i8042_probe(void)
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read_data();
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read_data();
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/* Self test. */
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/* Self test. */
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if (i8042_cmd_with_response(0xaa) != 0x55) {
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if (i8042_cmd_with_response(I8042_CMD_SELF_TEST)
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!= I8042_SELF_TEST_RSP) {
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kbc_init = 0;
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kbc_init = 0;
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return 0;
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return 0;
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}
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}
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/* Test secondary port */
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/* Test secondary port */
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if (i8042_cmd_with_response(0xa9) == 0)
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if (i8042_cmd_with_response(I8042_CMD_AUX_TEST) == 0)
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aux_fifo = fifo_init(4 * 32);
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aux_fifo = fifo_init(4 * 32);
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/* Test first PS/2 port */
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/* Test first PS/2 port */
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if (i8042_cmd_with_response(0xab) == 0)
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if (i8042_cmd_with_response(I8042_CMD_KB_TEST) == 0)
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ps2_fifo = fifo_init(2 * 16);
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ps2_fifo = fifo_init(2 * 16);
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kbc_init = 0;
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kbc_init = 0;
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@ -0,0 +1,69 @@
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/*
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* This file is part of the libpayload project.
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*
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* Copyright 2018 Google LLC.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef __DRIVERS_I8042_I8042_H__
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#define __DRIVERS_I8042_I8042_H__
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/* Port 0x64 commands */
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#define I8042_CMD_RD_CMD_BYTE 0x20
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#define I8042_CMD_WR_CMD_BYTE 0x60
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#define I8042_CMD_DIS_AUX 0xa7
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#define I8042_CMD_EN_AUX 0xa8
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#define I8042_CMD_AUX_TEST 0xa9
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#define I8042_CMD_SELF_TEST 0xaa
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#define I8042_SELF_TEST_RSP 0x55
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#define I8042_CMD_KB_TEST 0xab
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#define I8042_CMD_DIAG_DUMP 0xac
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#define I8042_CMD_DIS_KB 0xad
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#define I8042_CMD_EN_KB 0xae
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#define I8042_CMD_RD_INPUT_PORT 0xc0
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#define I8042_CMD_RD_OUTPUT_PORT 0xd0
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#define I8042_CMD_WR_OUTPUT_PORT 0xd1
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#define I8042_CMD_RD_TEST_INPUTS 0xe0
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/* Port 0x60 keyboard commands */
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#define I8042_KBCMD_SET_MODE_IND 0xed
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#define I8042_MODE_CAPS_LOCK_ON (1 << 2)
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#define I8042_MODE_CAPS_LOCK_OFF (0 << 2)
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#define I8042_MODE_NUM_LOCK_ON (1 << 1)
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#define I8042_MODE_NUM_LOCK_OFF (0 << 1)
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#define I8042_MODE_SCROLL_LOCK_ON (1 << 0)
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#define I8042_MODE_SCROLL_LOCK_OFF (0 << 0)
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#define I8042_KBCMD_SET_SCANCODE 0xf0
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#define I8042_SCANCODE_SET_1 (1)
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#define I8042_SCANCODE_SET_2 (2)
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#define I8042_SCANCODE_SET_3 (3)
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#define I8042_KBCMD_SET_TYPEMATIC 0xf3
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#define I8042_KBCMD_EN 0xf4
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#define I8042_KBCMD_DEFAULT_DIS 0xf5
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#define I8042_KBCMD_SET_DEFAULT 0xf6
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#define I8042_KBCMD_RESEND 0xfe
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#define I8042_KBCMD_RESET 0xff
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#endif /* __DRIVERS_I8042_I8042_H__ */
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@ -32,7 +32,8 @@
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#include <libpayload-config.h>
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#include <libpayload-config.h>
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#include <libpayload.h>
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#include <libpayload.h>
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#define I8042_CMD_DIS_KB 0xad
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#include "i8042.h"
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#define POWER_BUTTON 0x90
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#define POWER_BUTTON 0x90
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struct layout_maps {
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struct layout_maps {
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@ -203,12 +204,12 @@ unsigned char keyboard_get_scancode(void)
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case 0x3a:
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case 0x3a:
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if (modifier & KB_MOD_CAPSLOCK) {
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if (modifier & KB_MOD_CAPSLOCK) {
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modifier &= ~KB_MOD_CAPSLOCK;
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modifier &= ~KB_MOD_CAPSLOCK;
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if (keyboard_cmd(0xed))
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if (keyboard_cmd(I8042_KBCMD_SET_MODE_IND))
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keyboard_cmd(0 << 2);
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keyboard_cmd(I8042_MODE_CAPS_LOCK_OFF);
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} else {
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} else {
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modifier |= KB_MOD_CAPSLOCK;
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modifier |= KB_MOD_CAPSLOCK;
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if (keyboard_cmd(0xed))
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if (keyboard_cmd(I8042_KBCMD_SET_MODE_IND))
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keyboard_cmd(1 << 2);
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keyboard_cmd(I8042_MODE_CAPS_LOCK_ON);
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}
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}
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break;
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break;
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}
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}
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@ -304,19 +305,19 @@ void keyboard_init(void)
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keyboard_getchar();
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keyboard_getchar();
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/* Enable first PS/2 port */
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/* Enable first PS/2 port */
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i8042_cmd(0xae);
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i8042_cmd(I8042_CMD_EN_KB);
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/* Set scancode set 1 */
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/* Set scancode set 1 */
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ret = keyboard_cmd(0xf0);
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ret = keyboard_cmd(I8042_KBCMD_SET_SCANCODE);
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if (!ret)
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if (!ret)
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return;
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return;
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ret = keyboard_cmd(0x01);
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ret = keyboard_cmd(I8042_SCANCODE_SET_1);
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if (!ret)
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if (!ret)
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return;
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return;
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/* Enable scanning */
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/* Enable scanning */
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ret = keyboard_cmd(0xf4);
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ret = keyboard_cmd(I8042_KBCMD_EN);
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if (!ret)
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if (!ret)
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return;
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return;
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