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/* SPDX-License-Identifier: GPL-2.0-only */
#include <types.h>
#include <console/console.h>
#include <acpi/acpigen.h>
#include <device/device.h>
#include <device/pnp.h>
#include <string.h>
#include "lenovo.h"
#include "drivers/i2c/at24rf08c/lenovo.h"
static const char tablet_numbers[][5] = {
/* X60t. */
"6363", "6364", "6365", "6366",
"6367", "6368", "7762", "7763",
"7764", "7767", "7768", "7769",
/* X200t. */
"7448", "7449", "7450", "7453",
/* X201t. */
"0053", "0831", "2985", "3093",
"3113", "3144", "3239", "4184",
"2263", "2266",
};
int
drivers_lenovo_is_wacom_present(void)
{
const char *pn;
int i;
static int result = -1;
struct device *superio;
u8 sioid;
if (result != -1)
return result;
if (CONFIG(DIGITIZER_PRESENT)) {
printk(BIOS_INFO, "Digitizer state forced as present\n");
return (result = 1);
}
if (CONFIG(DIGITIZER_ABSENT)) {
printk(BIOS_INFO, "Digitizer state forced as absent\n");
return (result = 0);
}
superio = dev_find_slot_pnp(0x164e, 3);
if (!superio) {
printk(BIOS_INFO, "No Super I/O, skipping wacom\n");
return (result = 0);
}
/* Probe ID. */
sioid = pnp_read_config(superio, 0x20);
if (sioid == 0xff) {
printk(BIOS_INFO, "Super I/O probe failed, skipping wacom\n");
return (result = 0);
}
pn = lenovo_mainboard_partnumber();
if (!pn)
return (result = 0);
printk(BIOS_DEBUG, "Lenovo P/N is %s\n", pn);
for (i = 0; i < ARRAY_SIZE(tablet_numbers); i++)
if (memcmp(tablet_numbers[i], pn, 4) == 0) {
printk(BIOS_DEBUG, "Lenovo P/N %s is a tablet\n", pn);
return (result = 1);
}
printk(BIOS_DEBUG, "Lenovo P/N %s is not a tablet\n", pn);
return (result = 0);
}
void
drivers_lenovo_serial_ports_ssdt_generate(const char *scope,
int have_dock_serial)
{
acpigen_write_scope(scope);
if (drivers_lenovo_is_wacom_present()) {
acpigen_write_device("DTR");
acpigen_write_name("_HID");
acpigen_emit_eisaid("WACF004");
acpigen_write_name("_CRS");
acpigen_write_resourcetemplate_header();
acpigen_write_io16(0x200, 0x200, 1, 8, 1);
acpigen_write_irq((1 << 5));
acpigen_write_resourcetemplate_footer();
acpigen_write_STA(0xf);
acpigen_pop_len();
}
if (have_dock_serial) {
acpigen_write_device("COMA");
acpigen_write_name("_HID");
acpigen_emit_eisaid("PNP0501");
acpigen_write_name("_UID");
/* Byte */
acpigen_write_byte(0x2);
acpigen_write_name("_CRS");
acpigen_write_resourcetemplate_header();
acpigen_write_io16(0x3f8, 0x3f8, 1, 8, 1);
acpigen_write_irq(1 << 4);
acpigen_write_resourcetemplate_footer();
acpigen_write_STA(0xf);
acpigen_pop_len();
}
acpigen_pop_len();
}
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