/* SPDX-License-Identifier: GPL-2.0-only */ #include <types.h> #include <console/console.h> #include <acpi/acpi.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(); }