/* SPDX-License-Identifier: GPL-2.0-only */ #include <device/device.h> #include <console/console.h> #include <drivers/intel/gma/int15.h> #include <ec/acpi/ec.h> #include <southbridge/intel/common/gpio.h> #include <string.h> #include <smbios.h> #include "ec.h" #include <acpi/acpi.h> static u8 mainboard_fill_ec_version(char *buf, u8 buf_len) { u8 i, c; char str[16 + 1]; /* 16 ASCII chars + \0 */ /* Build ID */ for (i = 0; i < 8; i++) { c = ec_mm_read(0xf0 + i); if (c < 0x20 || c > 0x7f) { i = snprintf(str, sizeof(str), "*INVALID"); break; } str[i] = c; } i = MIN(buf_len, i); memcpy(buf, str, i); return i; } static void mainboard_smbios_strings( struct device *dev, struct smbios_type11 *t) { char tpec[] = "IBM ThinkPad Embedded Controller -[ ]-"; u16 fwvh, fwvl; mainboard_fill_ec_version(tpec + 35, 17); t->count = smbios_add_string(t->eos, tpec); /* Apparently byteswapped compared to H8 */ fwvh = ec_mm_read(0xe8); fwvl = ec_mm_read(0xe9); printk(BIOS_INFO, "EC Firmware ID %.54s, Version %d.%d%d%c\n", tpec, fwvh >> 4, fwvh & 0x0f, fwvl >> 4, 0x41 + (fwvl & 0xf)); } static void mainboard_enable(struct device *dev) { dev->ops->get_smbios_strings = mainboard_smbios_strings; install_intel_vga_int15_handler( GMA_INT15_ACTIVE_LFP_INT_LVDS, GMA_INT15_PANEL_FIT_DEFAULT, GMA_INT15_BOOT_DISPLAY_DEFAULT, 0); if (!acpi_is_wakeup_s3()) lenovo_s230u_ec_init(); } struct chip_operations mainboard_ops = { .enable_dev = mainboard_enable, };