bb03aaa7b8
This patch is based on commit f2b3cd63
(lenovo/x60: Support digitizer on X60t and X201t)
Tested on Thinkpad X200 Tablet (7450): all pen functionallity
works (i.e. movements, presure sensitivity and buttons)
Change-Id: I9bd18642a6ea4211dc3be065456a507fc0b72561
Signed-off-by: Alex David <opdecirkel@gmail.com>
Reviewed-on: http://review.coreboot.org/10208
Tested-by: build bot (Jenkins)
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
151 lines
3.6 KiB
C
151 lines
3.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2014 Vladimir Serbinenko
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2, or (at your
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* option) any later version, of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#include <types.h>
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#include <console/console.h>
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#include <arch/acpi.h>
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#include <arch/acpigen.h>
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#include <device/device.h>
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#include <device/pnp.h>
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#include <string.h>
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#include "lenovo.h"
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#include "drivers/i2c/at24rf08c/lenovo.h"
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static const char tablet_numbers[][5] = {
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/* X60t. */
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"6363", "6364", "6365", "6366",
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"6367", "6368", "7762", "7763",
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"7764", "7767", "7768", "7769",
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/* X200t. */
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"7448", "7449", "7450", "7453",
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/* X201t. */
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"0053", "0831", "2985", "3093",
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"3113", "3144", "3239", "4184",
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"2263", "2266",
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};
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int
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drivers_lenovo_is_wacom_present(void)
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{
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const char *pn;
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int i;
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static int result = -1;
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device_t superio;
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u8 sioid;
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if (result != -1)
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return result;
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if (IS_ENABLED(CONFIG_DIGITIZER_PRESENT)) {
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printk (BIOS_INFO, "Digitizer state forced as present\n");
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return (result = 1);
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}
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if (IS_ENABLED(CONFIG_DIGITIZER_ABSENT)) {
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printk (BIOS_INFO, "Digitizer state forced as absent\n");
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return (result = 0);
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}
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superio = dev_find_slot_pnp (0x164e, 3);
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if (!superio) {
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printk (BIOS_INFO, "No Super I/O, skipping wacom\n");
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return (result = 0);
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}
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/* Probe ID. */
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sioid = pnp_read_config(superio, 0x20);
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if (sioid == 0xff) {
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printk (BIOS_INFO, "Super I/O probe failed, skipping wacom\n");
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return (result = 0);
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}
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pn = lenovo_mainboard_partnumber();
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if (!pn)
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return (result = 0);
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printk (BIOS_DEBUG, "Lenovo P/N is %s\n", pn);
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for (i = 0; i < ARRAY_SIZE (tablet_numbers); i++)
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if (memcmp (tablet_numbers[i], pn, 4) == 0) {
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printk (BIOS_DEBUG, "Lenovo P/N %s is a tablet\n", pn);
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return (result = 1);
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}
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printk (BIOS_DEBUG, "Lenovo P/N %s is not a tablet\n", pn);
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return (result = 0);
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}
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void
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drivers_lenovo_serial_ports_ssdt_generate(const char *scope,
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int have_dock_serial)
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{
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acpigen_write_scope(scope);
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if (drivers_lenovo_is_wacom_present()) {
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acpigen_write_device("DTR");
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acpigen_write_name("_HID");
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acpigen_emit_eisaid("WACF004");
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acpigen_write_name("_CRS");
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acpigen_write_resourcetemplate_header();
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acpigen_write_io16(0x200, 0x200, 1, 8, 1);
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acpigen_write_irq((1 << 5));
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acpigen_write_resourcetemplate_footer();
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acpigen_write_method("_STA", 0);
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/* return */
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acpigen_emit_byte(0xa4);
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acpigen_write_byte(0xf);
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acpigen_pop_len();
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acpigen_pop_len();
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}
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if (have_dock_serial) {
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acpigen_write_device("COMA");
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acpigen_write_name("_HID");
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acpigen_emit_eisaid("PNP0501");
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acpigen_write_name("_UID");
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/* Byte */
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acpigen_write_byte(0x2);
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acpigen_write_name("_CRS");
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acpigen_write_resourcetemplate_header();
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acpigen_write_io16(0x3f8, 0x3f8, 1, 8, 1);
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acpigen_write_irq(1 << 4);
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acpigen_write_resourcetemplate_footer();
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/* method op */
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acpigen_write_method("_STA", 0);
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/* return */
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acpigen_emit_byte(0xa4);
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acpigen_write_byte(0xf);
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acpigen_pop_len();
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acpigen_pop_len();
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}
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acpigen_pop_len();
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}
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