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linux-pikaos-template/patches/0001-Add-legion-laptop-v0.1.patch
ferrreo 7b88f21dac Linux 6.3 release
2023-04-24 12:43:21 +01:00

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From 5a8cfba07126140f91bd48af08c56757b05baa1a Mon Sep 17 00:00:00 2001
From: John Martens <john.martens4@proton.me>
Date: Sun, 2 Apr 2023 16:39:30 +0000
Subject: [PATCH] Add legion-laptop v0.1
Add extra support for Lenovo Legion laptops.
---
drivers/platform/x86/Kconfig | 10 +
drivers/platform/x86/Makefile | 1 +
drivers/platform/x86/legion-laptop.c | 2783 ++++++++++++++++++++++++++
3 files changed, 2794 insertions(+)
create mode 100644 drivers/platform/x86/legion-laptop.c
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index f5312f51d..74e24e5ab 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -683,6 +683,16 @@ config THINKPAD_LMI
To compile this driver as a module, choose M here: the module will
be called think-lmi.
+config LEGION_LAPTOP
+ tristate "Lenovo Legion Laptop Extras"
+ depends on ACPI
+ depends on ACPI_WMI || ACPI_WMI = n
+ depends on HWMON || HWMON = n
+ select ACPI_PLATFORM_PROFILE
+ help
+ This is a driver for Lenovo Legion laptops and contains drivers for
+ hotkey, fan control, and power mode.
+
source "drivers/platform/x86/intel/Kconfig"
config MSI_LAPTOP
diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
index 5a428caa6..cfd07f9f3 100644
--- a/drivers/platform/x86/Makefile
+++ b/drivers/platform/x86/Makefile
@@ -68,6 +68,7 @@ obj-$(CONFIG_IDEAPAD_LAPTOP) += ideapad-laptop.o
obj-$(CONFIG_SENSORS_HDAPS) += hdaps.o
obj-$(CONFIG_THINKPAD_ACPI) += thinkpad_acpi.o
obj-$(CONFIG_THINKPAD_LMI) += think-lmi.o
+obj-$(CONFIG_LEGION_LAPTOP) += legion-laptop.o
# Intel
obj-y += intel/
diff --git a/drivers/platform/x86/legion-laptop.c b/drivers/platform/x86/legion-laptop.c
new file mode 100644
index 000000000..d1268d239
--- /dev/null
+++ b/drivers/platform/x86/legion-laptop.c
@@ -0,0 +1,2783 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * legion-laptop.c - Extra Lenovo Legion laptop support, in
+ * particular for fan curve control and power mode.
+ *
+ * Copyright (C) 2022 johnfan <johnfan (at) example (dot) com>
+ *
+ *
+ * This driver might work on other Lenovo Legion models. If you
+ * want to try it you can pass force=1 as argument
+ * to the module which will force it to load even when the DMI
+ * data doesn't match the model AND FIRMWARE.
+ *
+ * Support for other hardware of this model is already partially
+ * provided by the module ideapd-laptop.
+ *
+ * The development page for this driver is located at
+ * https://github.com/johnfanv2/LenovoLegionLinux
+ *
+ * This driver exports the files:
+ * - /sys/kernel/debug/legion/fancurve (ro)
+ * The fan curve in the form stored in the firmware in an
+ * human readable table.
+ *
+ * - /sys/module/legion_laptop/drivers/platform\:legion/PNP0C09\:00/powermode (rw)
+ * 0: balanced mode (white)
+ * 1: performance mode (red)
+ * 2: quiet mode (blue)
+ * ?: custom mode (pink)
+ *
+ * NOTE: Writing to this will load the default fan curve from
+ * the firmware for this mode, so the fan curve might
+ * have to be reconfigured if needed.
+ *
+ * It implements the usual hwmon interface to monitor fan speed and temmperature
+ * and allows to set the fan curve inside the firware.
+ *
+ * - /sys/class/hwmon/X/fan1_input or /sys/class/hwmon/X/fan2_input (ro)
+ * Current fan speed of fan1/fan2.
+ * - /sys/class/hwmon/X/temp1_input (ro)
+ * - /sys/class/hwmon/X/temp2_input (ro)
+ * - /sys/class/hwmon/X/temp3_input (ro)
+ * Temperature (Celsius) of CPU, GPU, and IC used for fan control.
+ * - /sys/class/hwmon/X/pwmY_auto_pointZ_pwm (rw)
+ * PWM (0-255) of the fan at the Y-level in the fan curve
+ * - /sys/class/hwmon/X/pwmY_auto_pointZ_temp (rw)
+ * upper temperature of tempZ (CPU, GPU, or IC) at the Y-level in the fan curve
+ * - /sys/class/hwmon/X/pwmY_auto_pointZ_temp_hyst (rw)
+ * hysteris (CPU, GPU, or IC) at the Y-level in the fan curve. The lower
+ * temperatue of the level is the upper temperature minus the hysteris
+ *
+ *
+ * Credits for reverse engineering the firmware to:
+ * - David Woodhouse: heavily inspired by lenovo_laptop.c
+ * - Luke Cama: Windows version "LegionFanControl"
+ * - SmokelessCPU: reverse engineering of custom registers in EC
+ * and commincation method with EC via ports
+ * - 0x1F9F1: additional reverse engineering for complete fan curve
+ */
+
+#include <linux/acpi.h>
+#include <asm/io.h>
+#include <linux/debugfs.h>
+#include <linux/delay.h>
+#include <linux/dmi.h>
+#include <linux/hwmon.h>
+#include <linux/hwmon-sysfs.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/moduleparam.h>
+#include <linux/platform_device.h>
+#include <linux/platform_profile.h>
+#include <linux/types.h>
+#include <linux/wmi.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("johnfan");
+MODULE_DESCRIPTION("Lenovo Legion laptop extras");
+
+static bool force;
+module_param(force, bool, 0440);
+MODULE_PARM_DESC(
+ force,
+ "Force loading this module even if model or BIOS does not match.");
+
+static bool ec_readonly;
+module_param(ec_readonly, bool, 0440);
+MODULE_PARM_DESC(
+ ec_readonly,
+ "Only read from embedded controller but do not write or change settings.");
+
+#define LEGIONFEATURES \
+ "fancurve powermode platformprofile platformprofilenotify minifancurve"
+
+//Size of fancurve stored in embedded controller
+#define MAXFANCURVESIZE 10
+
+#define LEGION_DRVR_SHORTNAME "legion"
+#define LEGION_HWMON_NAME LEGION_DRVR_SHORTNAME "_hwmon"
+
+/* =============================== */
+/* Embedded Controller Description */
+/* =============================== */
+
+/* The configuration and registers to access the embedded controller
+ * depending on different the version of the software on the
+ * embedded controller or and the BIOS/UEFI firmware.
+ *
+ * To control fan curve in the embedded controller (EC) one has to
+ * write to its "RAM". There are different possibilities:
+ * - EC RAM is memory mapped (write to it with ioremap)
+ * - access EC RAM via ported mapped IO (outb/inb)
+ * - access EC RAM via ACPI methods. It is only possible to write
+ * to part of it (first 0xFF bytes?)
+ *
+ * In later models the firmware directly exposes ACPI methods to
+ * set the fan curve direclty, without writing to EC RAM. This
+ * is done inside the ACPI method.
+ */
+
+/**
+ * Offsets for interseting values inside the EC RAM (0 = start of
+ * EC RAM. These might change depending on the software inside of
+ * the EC, which can be updated by a BIOS update from Lenovo.
+ */
+// TODO: same order as in initialization
+struct ec_register_offsets {
+ // Super I/O Configuration Registers
+ // 7.15 General Control (GCTRL)
+ // General Control (GCTRL)
+ // (see EC Interface Registers and 6.2 Plug and Play Configuration (PNPCFG)) in datasheet
+ // note: these are in two places saved
+ // in EC Interface Registers and in super io configuraion registers
+ // Chip ID
+ u16 ECHIPID1;
+ u16 ECHIPID2;
+ // Chip Version
+ u16 ECHIPVER;
+ u16 ECDEBUG;
+
+ // Lenovo Custom OEM extension
+ // Firmware of ITE can be extended by
+ // custom program using its own "variables"
+ // These are the offsets to these "variables"
+ u16 EXT_FAN_CUR_POINT;
+ u16 EXT_FAN_POINTS_SIZE;
+ u16 EXT_FAN1_BASE;
+ u16 EXT_FAN2_BASE;
+ u16 EXT_FAN_ACC_BASE;
+ u16 EXT_FAN_DEC_BASE;
+ u16 EXT_CPU_TEMP;
+ u16 EXT_CPU_TEMP_HYST;
+ u16 EXT_GPU_TEMP;
+ u16 EXT_GPU_TEMP_HYST;
+ u16 EXT_VRM_TEMP;
+ u16 EXT_VRM_TEMP_HYST;
+ u16 EXT_FAN1_RPM_LSB;
+ u16 EXT_FAN1_RPM_MSB;
+ u16 EXT_FAN2_RPM_LSB;
+ u16 EXT_FAN2_RPM_MSB;
+ u16 EXT_FAN1_TARGET_RPM;
+ u16 EXT_FAN2_TARGET_RPM;
+ u16 EXT_POWERMODE;
+ u16 EXT_MINIFANCURVE_ON_COOL;
+ // values
+ // 0x04: enable mini fan curve if very long on cool level
+ // - this might be due to potential temp failure
+ // - or just because really so cool
+ // 0xA0: disable it
+ u16 EXT_LOCKFANCONTROLLER;
+ u16 EXT_MAXIMUMFANSPEED;
+ u16 EXT_WHITE_KEYBOARD_BACKLIGHT;
+ u16 EXT_IC_TEMP_INPUT;
+ u16 EXT_CPU_TEMP_INPUT;
+ u16 EXT_GPU_TEMP_INPUT;
+};
+
+struct model_config {
+ const struct ec_register_offsets *registers;
+ bool check_embedded_controller_id;
+ u16 embedded_controller_id;
+
+ // first addr in EC we access/scan
+ phys_addr_t memoryio_physical_ec_start;
+ size_t memoryio_size;
+
+ // TODO: maybe use bitfield
+ bool has_minifancurve;
+};
+
+/* =================================== */
+/* Coinfiguration for different models */
+/* =================================== */
+
+// Idea by SmokelesssCPU (modified)
+// - all default names and register addresses are supported by datasheet
+// - register addresses for custom firmware by SmokelesssCPU
+static const struct ec_register_offsets ec_register_offsets_v0 = {
+ .ECHIPID1 = 0x2000,
+ .ECHIPID2 = 0x2001,
+ .ECHIPVER = 0x2002,
+ .ECDEBUG = 0x2003,
+ .EXT_FAN_CUR_POINT = 0xC534,
+ .EXT_FAN_POINTS_SIZE = 0xC535,
+ .EXT_FAN1_BASE = 0xC540,
+ .EXT_FAN2_BASE = 0xC550,
+ .EXT_FAN_ACC_BASE = 0xC560,
+ .EXT_FAN_DEC_BASE = 0xC570,
+ .EXT_CPU_TEMP = 0xC580,
+ .EXT_CPU_TEMP_HYST = 0xC590,
+ .EXT_GPU_TEMP = 0xC5A0,
+ .EXT_GPU_TEMP_HYST = 0xC5B0,
+ .EXT_VRM_TEMP = 0xC5C0,
+ .EXT_VRM_TEMP_HYST = 0xC5D0,
+ .EXT_FAN1_RPM_LSB = 0xC5E0,
+ .EXT_FAN1_RPM_MSB = 0xC5E1,
+ .EXT_FAN2_RPM_LSB = 0xC5E2,
+ .EXT_FAN2_RPM_MSB = 0xC5E3,
+ .EXT_MINIFANCURVE_ON_COOL = 0xC536,
+ .EXT_LOCKFANCONTROLLER = 0xc4AB,
+ .EXT_CPU_TEMP_INPUT = 0xc538,
+ .EXT_GPU_TEMP_INPUT = 0xc539,
+ .EXT_IC_TEMP_INPUT = 0xC5E8,
+ .EXT_POWERMODE = 0xc420,
+ .EXT_FAN1_TARGET_RPM = 0xc600,
+ .EXT_FAN2_TARGET_RPM = 0xc601,
+ .EXT_MAXIMUMFANSPEED = 0xBD,
+ .EXT_WHITE_KEYBOARD_BACKLIGHT = (0x3B + 0xC400)
+};
+
+static const struct model_config model_v0 = {
+ .registers = &ec_register_offsets_v0,
+ .check_embedded_controller_id = true,
+ .embedded_controller_id = 0x8227,
+ .memoryio_physical_ec_start = 0xC400,
+ .memoryio_size = 0x300,
+ .has_minifancurve = true
+};
+
+static const struct model_config model_kfcn = {
+ .registers = &ec_register_offsets_v0,
+ .check_embedded_controller_id = true,
+ .embedded_controller_id = 0x8227,
+ .memoryio_physical_ec_start = 0xC400,
+ .memoryio_size = 0x300,
+ .has_minifancurve = false
+};
+
+static const struct model_config model_hacn = {
+ .registers = &ec_register_offsets_v0,
+ .check_embedded_controller_id = false,
+ .embedded_controller_id = 0x8227,
+ .memoryio_physical_ec_start = 0xC400,
+ .memoryio_size = 0x300,
+ .has_minifancurve = false
+};
+
+
+static const struct model_config model_k9cn = {
+ .registers = &ec_register_offsets_v0,
+ .check_embedded_controller_id = false,
+ .embedded_controller_id = 0x8227,
+ .memoryio_physical_ec_start = 0xC400, // or replace 0xC400 by 0x0400 ?
+ .memoryio_size = 0x300,
+ .has_minifancurve = false
+};
+
+
+
+static const struct dmi_system_id denylist[] = { {} };
+
+static const struct dmi_system_id optimistic_allowlist[] = {
+ {
+ // modelyear: 2021
+ // generation: 6
+ // name: Legion 5, Legion 5 pro, Legion 7
+ // Family: Legion 5 15ACH6H, ...
+ .ident = "GKCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "GKCN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2020
+ .ident = "EUCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "EUCN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2020
+ .ident = "EFCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "EFCN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2020
+ .ident = "FSCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "FSCN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2021
+ .ident = "HHCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "HHCN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2022
+ .ident = "H1CN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "H1CN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2022
+ .ident = "J2CN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "J2CN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2022
+ .ident = "JUCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "JUCN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2022
+ .ident = "KFCN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "KFCN"),
+ },
+ .driver_data = (void *)&model_kfcn
+ },
+ {
+ // modelyear: 2021
+ .ident = "HACN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "HACN"),
+ },
+ .driver_data = (void *)&model_hacn
+ },
+ {
+ // modelyear: 2021
+ .ident = "G9CN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "G9CN"),
+ },
+ .driver_data = (void *)&model_v0
+ },
+ {
+ // modelyear: 2022
+ .ident = "K9CN",
+ .matches = {
+ DMI_MATCH(DMI_SYS_VENDOR, "LENOVO"),
+ DMI_MATCH(DMI_BIOS_VERSION, "K9CN"),
+ },
+ .driver_data = (void *)&model_k9cn
+ },
+ {}
+};
+
+/* ================================= */
+/* ACPI access */
+/* ================================= */
+
+// function from ideapad-laptop.c
+static int eval_int(acpi_handle handle, const char *name, unsigned long *res)
+{
+ unsigned long long result;
+ acpi_status status;
+
+ status = acpi_evaluate_integer(handle, (char *)name, NULL, &result);
+ if (ACPI_FAILURE(status))
+ return -EIO;
+
+ *res = result;
+
+ return 0;
+}
+
+// function from ideapad-laptop.c
+static int exec_simple_method(acpi_handle handle, const char *name,
+ unsigned long arg)
+{
+ acpi_status status =
+ acpi_execute_simple_method(handle, (char *)name, arg);
+
+ return ACPI_FAILURE(status) ? -EIO : 0;
+}
+
+// function from ideapad-laptop.c
+static int exec_sbmc(acpi_handle handle, unsigned long arg)
+{
+ // \_SB.PCI0.LPC0.EC0.VPC0.SBMC
+ return exec_simple_method(handle, "SBMC", arg);
+}
+
+static int eval_qcho(acpi_handle handle, unsigned long *res)
+{
+ // \_SB.PCI0.LPC0.EC0.QCHO
+ return eval_int(handle, "QCHO", res);
+}
+
+/* ================================= */
+/* EC RAM Access with port-mapped IO */
+/* ================================= */
+
+/*
+ * See datasheet of e.g. IT8502E/F/G, e.g.
+ * 6.2 Plug and Play Configuration (PNPCFG)
+ *
+ * Depending on configured BARDSEL register
+ * the ports
+ * ECRAM_PORTIO_ADDR_PORT and
+ * ECRAM_PORTIO_DATA_PORT
+ * are configured.
+ *
+ * By performing IO on these ports one can
+ * read/write to registers in the EC.
+ *
+ * "To access a register of PNPCFG, write target index to
+ * address port and access this PNPCFG register via
+ * data port" [datasheet, 6.2 Plug and Play Configuration]
+ */
+
+// IO ports used to write to communicate with embedded controller
+// Start of used ports
+#define ECRAM_PORTIO_START_PORT 0x4E
+// Number of used ports
+#define ECRAM_PORTIO_PORTS_SIZE 2
+// Port used to specify address in EC RAM to read/write
+// 0x4E/0x4F is the usual port for IO super controler
+// 0x2E/0x2F also common (ITE can also be configure to use these)
+#define ECRAM_PORTIO_ADDR_PORT 0x4E
+// Port to send/receive the value to write/read
+#define ECRAM_PORTIO_DATA_PORT 0x4F
+// Name used to request ports
+#define ECRAM_PORTIO_NAME "legion"
+
+struct ecram_portio {
+ /* protects read/write to EC RAM performed
+ * as a certain sequence of outb, inb
+ * commands on the IO ports. There can
+ * be at most one.
+ */
+ struct mutex io_port_mutex;
+};
+
+ssize_t ecram_portio_init(struct ecram_portio *ec_portio)
+{
+ if (!request_region(ECRAM_PORTIO_START_PORT, ECRAM_PORTIO_PORTS_SIZE,
+ ECRAM_PORTIO_NAME)) {
+ pr_info("Cannot init ecram_portio the %x ports starting at %x\n",
+ ECRAM_PORTIO_PORTS_SIZE, ECRAM_PORTIO_START_PORT);
+ return -ENODEV;
+ }
+ //pr_info("Reserved %x ports starting at %x\n", ECRAM_PORTIO_PORTS_SIZE, ECRAM_PORTIO_START_PORT);
+ mutex_init(&ec_portio->io_port_mutex);
+ return 0;
+}
+
+void ecram_portio_exit(struct ecram_portio *ec_portio)
+{
+ release_region(ECRAM_PORTIO_START_PORT, ECRAM_PORTIO_PORTS_SIZE);
+}
+
+/* Read a byte from the EC RAM.
+ *
+ * Return status because of commong signature for alle
+ * methods to access EC RAM.
+ */
+ssize_t ecram_portio_read(struct ecram_portio *ec_portio, u16 offset, u8 *value)
+{
+ mutex_lock(&ec_portio->io_port_mutex);
+
+ outb(0x2E, ECRAM_PORTIO_ADDR_PORT);
+ outb(0x11, ECRAM_PORTIO_DATA_PORT);
+ outb(0x2F, ECRAM_PORTIO_ADDR_PORT);
+ // TODO: no explicit cast between types seems to be sometimes
+ // done and sometimes not
+ outb((u8)((offset >> 8) & 0xFF), ECRAM_PORTIO_DATA_PORT);
+
+ outb(0x2E, ECRAM_PORTIO_ADDR_PORT);
+ outb(0x10, ECRAM_PORTIO_DATA_PORT);
+ outb(0x2F, ECRAM_PORTIO_ADDR_PORT);
+ outb((u8)(offset & 0xFF), ECRAM_PORTIO_DATA_PORT);
+
+ outb(0x2E, ECRAM_PORTIO_ADDR_PORT);
+ outb(0x12, ECRAM_PORTIO_DATA_PORT);
+ outb(0x2F, ECRAM_PORTIO_ADDR_PORT);
+ *value = inb(ECRAM_PORTIO_DATA_PORT);
+
+ mutex_unlock(&ec_portio->io_port_mutex);
+ return 0;
+}
+
+/* Write a byte to the EC RAM.
+ *
+ * Return status because of commong signature for alle
+ * methods to access EC RAM.
+ */
+ssize_t ecram_portio_write(struct ecram_portio *ec_portio, u16 offset, u8 value)
+{
+ mutex_lock(&ec_portio->io_port_mutex);
+
+ outb(0x2E, ECRAM_PORTIO_ADDR_PORT);
+ outb(0x11, ECRAM_PORTIO_DATA_PORT);
+ outb(0x2F, ECRAM_PORTIO_ADDR_PORT);
+ // TODO: no explicit cast between types seems to be sometimes
+ // done and sometimes not
+ outb((u8)((offset >> 8) & 0xFF), ECRAM_PORTIO_DATA_PORT);
+
+ outb(0x2E, ECRAM_PORTIO_ADDR_PORT);
+ outb(0x10, ECRAM_PORTIO_DATA_PORT);
+ outb(0x2F, ECRAM_PORTIO_ADDR_PORT);
+ outb((u8)(offset & 0xFF), ECRAM_PORTIO_DATA_PORT);
+
+ outb(0x2E, ECRAM_PORTIO_ADDR_PORT);
+ outb(0x12, ECRAM_PORTIO_DATA_PORT);
+ outb(0x2F, ECRAM_PORTIO_ADDR_PORT);
+ outb(value, ECRAM_PORTIO_DATA_PORT);
+
+ mutex_unlock(&ec_portio->io_port_mutex);
+ return 0;
+}
+
+/* =================================== */
+/* EC RAM Access */
+/* =================================== */
+
+struct ecram {
+ struct ecram_portio portio;
+};
+
+ssize_t ecram_init(struct ecram *ecram, phys_addr_t memoryio_ec_physical_start,
+ size_t region_size)
+{
+ ssize_t err;
+
+ err = ecram_portio_init(&ecram->portio);
+ if (err) {
+ pr_info("Failed ecram_portio_init\n");
+ goto err_ecram_portio_init;
+ }
+
+ return 0;
+
+err_ecram_portio_init:
+ return err;
+}
+
+void ecram_exit(struct ecram *ecram)
+{
+ pr_info("Unloading legion ecram\n");
+ ecram_portio_exit(&ecram->portio);
+ pr_info("Unloading legion ecram done\n");
+}
+
+/**
+ * ecram_offset address on the EC
+ */
+static u8 ecram_read(struct ecram *ecram, u16 ecram_offset)
+{
+ u8 value;
+ int err;
+
+ err = ecram_portio_read(&ecram->portio, ecram_offset, &value);
+ if (err)
+ pr_info("Error reading EC RAM at 0x%x\n", ecram_offset);
+ return value;
+}
+
+static void ecram_write(struct ecram *ecram, u16 ecram_offset, u8 value)
+{
+ int err;
+
+ if (ec_readonly) {
+ pr_info("Skipping writing EC RAM at 0x%x because readonly.\n",
+ ecram_offset);
+ return;
+ }
+ err = ecram_portio_write(&ecram->portio, ecram_offset, value);
+ if (err)
+ pr_info("Error writing EC RAM at 0x%x\n", ecram_offset);
+}
+
+/* =============================== */
+/* Reads from EC */
+/* =============================== */
+
+u16 read_ec_id(struct ecram *ecram, const struct model_config *model)
+{
+ u8 id1 = ecram_read(ecram, model->registers->ECHIPID1);
+ u8 id2 = ecram_read(ecram, model->registers->ECHIPID2);
+
+ return (id1 << 8) + id2;
+}
+
+u16 read_ec_version(struct ecram *ecram, const struct model_config *model)
+{
+ u8 vers = ecram_read(ecram, model->registers->ECHIPVER);
+ u8 debug = ecram_read(ecram, model->registers->ECDEBUG);
+
+ return (vers << 8) + debug;
+}
+
+/* ============================= */
+/* Data model for sensor values */
+/* ============================ */
+
+struct sensor_values {
+ u16 fan1_rpm; // current speed in rpm of fan 1
+ u16 fan2_rpm; // current speed in rpm of fan2
+ u16 fan1_target_rpm; // target speed in rpm of fan 1
+ u16 fan2_target_rpm; // target speed in rpm of fan 2
+ u8 cpu_temp_celsius; // cpu temperature in celcius
+ u8 gpu_temp_celsius; // gpu temperature in celcius
+ u8 ic_temp_celsius; // ic temperature in celcius
+};
+
+enum SENSOR_ATTR {
+ SENSOR_CPU_TEMP_ID = 1,
+ SENSOR_GPU_TEMP_ID = 2,
+ SENSOR_IC_TEMP_ID = 3,
+ SENSOR_FAN1_RPM_ID = 4,
+ SENSOR_FAN2_RPM_ID = 5,
+ SENSOR_FAN1_TARGET_RPM_ID = 6,
+ SENSOR_FAN2_TARGET_RPM_ID = 7
+};
+
+static int read_sensor_values(struct ecram *ecram,
+ const struct model_config *model,
+ struct sensor_values *values)
+{
+ values->fan1_target_rpm =
+ 100 * ecram_read(ecram, model->registers->EXT_FAN1_TARGET_RPM);
+ values->fan2_target_rpm =
+ 100 * ecram_read(ecram, model->registers->EXT_FAN2_TARGET_RPM);
+
+ values->fan1_rpm =
+ ecram_read(ecram, model->registers->EXT_FAN1_RPM_LSB) +
+ (((int)ecram_read(ecram, model->registers->EXT_FAN1_RPM_MSB))
+ << 8);
+ values->fan2_rpm =
+ ecram_read(ecram, model->registers->EXT_FAN2_RPM_LSB) +
+ (((int)ecram_read(ecram, model->registers->EXT_FAN2_RPM_MSB))
+ << 8);
+
+ values->cpu_temp_celsius =
+ ecram_read(ecram, model->registers->EXT_CPU_TEMP_INPUT);
+ values->gpu_temp_celsius =
+ ecram_read(ecram, model->registers->EXT_GPU_TEMP_INPUT);
+ values->ic_temp_celsius =
+ ecram_read(ecram, model->registers->EXT_IC_TEMP_INPUT);
+
+ values->cpu_temp_celsius = ecram_read(ecram, 0xC5E6);
+ values->gpu_temp_celsius = ecram_read(ecram, 0xC5E7);
+ values->ic_temp_celsius = ecram_read(ecram, 0xC5E8);
+
+ return 0;
+}
+
+/* =============================== */
+/* Behaviour changing functions */
+/* =============================== */
+
+int read_powermode(struct ecram *ecram, const struct model_config *model)
+{
+ return ecram_read(ecram, model->registers->EXT_POWERMODE);
+}
+
+ssize_t write_powermode(struct ecram *ecram, const struct model_config *model,
+ u8 value)
+{
+ if (!(value >= 0 && value <= 2)) {
+ pr_info("Unexpected power mode value ignored: %d\n", value);
+ return -ENOMEM;
+ }
+ ecram_write(ecram, model->registers->EXT_POWERMODE, value);
+ return 0;
+}
+
+/**
+ * Shortly toggle powermode to a different mode
+ * and switch back, e.g. to reset fan curve.
+ */
+void toggle_powermode(struct ecram *ecram, const struct model_config *model)
+{
+ int old_powermode = read_powermode(ecram, model);
+ int next_powermode = old_powermode == 0 ? 1 : 0;
+
+ write_powermode(ecram, model, next_powermode);
+ mdelay(1500);
+ write_powermode(ecram, model, old_powermode);
+}
+
+#define lockfancontroller_ON 8
+#define lockfancontroller_OFF 0
+
+ssize_t write_lockfancontroller(struct ecram *ecram,
+ const struct model_config *model, bool state)
+{
+ u8 val = state ? lockfancontroller_ON : lockfancontroller_OFF;
+
+ ecram_write(ecram, model->registers->EXT_LOCKFANCONTROLLER, val);
+ return 0;
+}
+
+int read_lockfancontroller(struct ecram *ecram,
+ const struct model_config *model, bool *state)
+{
+ int value = ecram_read(ecram, model->registers->EXT_LOCKFANCONTROLLER);
+
+ switch (value) {
+ case lockfancontroller_ON:
+ *state = true;
+ break;
+ case lockfancontroller_OFF:
+ *state = false;
+ break;
+ default:
+ pr_info("Unexpected value in lockfanspeed register:%d\n",
+ value);
+ return -1;
+ }
+ return 0;
+}
+
+#define MAXIMUMFANSPEED_ON 0x40
+#define MAXIMUMFANSPEED_OFF 0x00
+
+int read_maximumfanspeed(struct ecram *ecram, const struct model_config *model,
+ bool *state)
+{
+ int value = ecram_read(ecram, model->registers->EXT_MAXIMUMFANSPEED);
+
+ switch (value) {
+ case MAXIMUMFANSPEED_ON:
+ *state = true;
+ break;
+ case MAXIMUMFANSPEED_OFF:
+ *state = false;
+ break;
+ default:
+ pr_info("Unexpected value in maximumfanspeed register:%d\n",
+ value);
+ return -1;
+ }
+ return 0;
+}
+
+ssize_t write_maximumfanspeed(struct ecram *ecram,
+ const struct model_config *model, bool state)
+{
+ u8 val = state ? MAXIMUMFANSPEED_ON : MAXIMUMFANSPEED_OFF;
+
+ ecram_write(ecram, model->registers->EXT_MAXIMUMFANSPEED, val);
+ return 0;
+}
+
+#define MINIFANCUVE_ON_COOL_ON 0x04
+#define MINIFANCUVE_ON_COOL_OFF 0xA0
+
+int read_minifancurve(struct ecram *ecram, const struct model_config *model,
+ bool *state)
+{
+ int value =
+ ecram_read(ecram, model->registers->EXT_MINIFANCURVE_ON_COOL);
+
+ switch (value) {
+ case MINIFANCUVE_ON_COOL_ON:
+ *state = true;
+ break;
+ case MINIFANCUVE_ON_COOL_OFF:
+ *state = false;
+ break;
+ default:
+ pr_info("Unexpected value in MINIFANCURVE register:%d\n",
+ value);
+ return -1;
+ }
+ return 0;
+}
+
+ssize_t write_minifancurve(struct ecram *ecram,
+ const struct model_config *model, bool state)
+{
+ u8 val = state ? MINIFANCUVE_ON_COOL_ON : MINIFANCUVE_ON_COOL_OFF;
+
+ ecram_write(ecram, model->registers->EXT_MINIFANCURVE_ON_COOL, val);
+ return 0;
+}
+
+#define KEYBOARD_BACKLIGHT_OFF 18
+#define KEYBOARD_BACKLIGHT_ON1 21
+#define KEYBOARD_BACKLIGHT_ON2 23
+
+int read_keyboard_backlight(struct ecram *ecram,
+ const struct model_config *model, int *state)
+{
+ int value = ecram_read(ecram,
+ model->registers->EXT_WHITE_KEYBOARD_BACKLIGHT);
+
+ //switch (value) {
+ //case MINIFANCUVE_ON_COOL_ON:
+ // *state = true;
+ // break;
+ //case MINIFANCUVE_ON_COOL_OFF:
+ // *state = false;
+ // break;
+ //default:
+ // pr_info("Unexpected value in MINIFANCURVE register:%d\n",
+ // value);
+ // return -1;
+ //}
+ *state = value;
+ return 0;
+}
+
+int write_keyboard_backlight(struct ecram *ecram,
+ const struct model_config *model, int state)
+{
+ u8 val = state > 0 ? KEYBOARD_BACKLIGHT_ON1 : KEYBOARD_BACKLIGHT_OFF;
+
+ ecram_write(ecram, model->registers->EXT_WHITE_KEYBOARD_BACKLIGHT, val);
+ return 0;
+}
+
+#define FCT_RAPID_CHARGE_ON 0x07
+#define FCT_RAPID_CHARGE_OFF 0x08
+#define RAPID_CHARGE_ON 0x0
+#define RAPID_CHARGE_OFF 0x1
+
+int read_rapidcharge(acpi_handle acpihandle, int *state)
+{
+ unsigned long result;
+ int err;
+
+ err = eval_qcho(acpihandle, &result);
+ if (err)
+ return err;
+
+ *state = result;
+ return 0;
+}
+
+int write_rapidcharge(acpi_handle acpihandle, bool state)
+{
+ unsigned long fct_nr = state > 0 ? FCT_RAPID_CHARGE_ON :
+ FCT_RAPID_CHARGE_OFF;
+ return exec_sbmc(acpihandle, fct_nr);
+}
+
+/* ============================= */
+/* Data model for fan curve */
+/* ============================ */
+
+struct fancurve_point {
+ // rpm1 devided by 100
+ u8 rpm1_raw;
+ // rpm2 devided by 100
+ u8 rpm2_raw;
+ // >=2 , <=5 (lower is faster); must be increasing by level
+ u8 accel;
+ // >=2 , <=5 (lower is faster); must be increasing by level
+ u8 decel;
+
+ // min must be lower or equal than max
+ // last level max must be 127
+ // <=127 cpu max temp for this level; must be increasing by level
+ u8 cpu_max_temp_celsius;
+ // <=127 cpu min temp for this level; must be increasing by level
+ u8 cpu_min_temp_celsius;
+ // <=127 gpu min temp for this level; must be increasing by level
+ u8 gpu_max_temp_celsius;
+ // <=127 gpu max temp for this level; must be increasing by level
+ u8 gpu_min_temp_celsius;
+ // <=127 ic max temp for this level; must be increasing by level
+ u8 ic_max_temp_celsius;
+ // <=127 ic max temp for this level; must be increasing by level
+ u8 ic_min_temp_celsius;
+};
+
+enum FANCURVE_ATTR {
+ FANCURVE_ATTR_PWM1 = 1,
+ FANCURVE_ATTR_PWM2 = 2,
+ FANCURVE_ATTR_CPU_TEMP = 3,
+ FANCURVE_ATTR_CPU_HYST = 4,
+ FANCURVE_ATTR_GPU_TEMP = 5,
+ FANCURVE_ATTR_GPU_HYST = 6,
+ FANCURVE_ATTR_IC_TEMP = 7,
+ FANCURVE_ATTR_IC_HYST = 8,
+ FANCURVE_ATTR_ACCEL = 9,
+ FANCURVE_ATTR_DECEL = 10,
+ FANCURVE_SIZE = 11,
+ FANCURVE_MINIFANCURVE_ON_COOL = 12
+};
+
+// used for clearing table entries
+static const struct fancurve_point fancurve_point_zero = { 0, 0, 0, 0, 0,
+ 0, 0, 0, 0, 0 };
+
+struct fancurve {
+ struct fancurve_point points[MAXFANCURVESIZE];
+ // number of points used; must be <= MAXFANCURVESIZE
+ size_t size;
+ // the point that at which fans are run currently
+ size_t current_point_i;
+};
+
+// calculate derived values
+
+int fancurve_get_cpu_deltahyst(struct fancurve_point *point)
+{
+ return ((int)point->cpu_max_temp_celsius) -
+ ((int)point->cpu_min_temp_celsius);
+}
+
+int fancurve_get_gpu_deltahyst(struct fancurve_point *point)
+{
+ return ((int)point->gpu_max_temp_celsius) -
+ ((int)point->gpu_min_temp_celsius);
+}
+
+int fancurve_get_ic_deltahyst(struct fancurve_point *point)
+{
+ return ((int)point->ic_max_temp_celsius) -
+ ((int)point->ic_min_temp_celsius);
+}
+
+// validation functions
+
+bool fancurve_is_valid_min_temp(int min_temp)
+{
+ return min_temp >= 0 && min_temp <= 127;
+}
+
+bool fancurve_is_valid_max_temp(int max_temp)
+{
+ return max_temp >= 0 && max_temp <= 127;
+}
+
+// setters with validation
+// - make hwmon implementation easier
+// - keep fancurve valid, otherwise EC will not properly control fan
+
+bool fancurve_set_rpm1(struct fancurve *fancurve, int point_id, int rpm)
+{
+ bool valid = point_id == 0 ? rpm == 0 : (rpm >= 0 && rpm <= 4500);
+
+ if (valid)
+ fancurve->points[point_id].rpm1_raw = rpm / 100;
+ return valid;
+}
+
+bool fancurve_set_rpm2(struct fancurve *fancurve, int point_id, int rpm)
+{
+ bool valid = point_id == 0 ? rpm == 0 : (rpm >= 0 && rpm <= 4500);
+
+ if (valid)
+ fancurve->points[point_id].rpm2_raw = rpm / 100;
+ return valid;
+}
+
+// TODO: remove { ... } from single line if body
+
+bool fancurve_set_accel(struct fancurve *fancurve, int point_id, int accel)
+{
+ bool valid = accel >= 2 && accel <= 5;
+
+ if (valid)
+ fancurve->points[point_id].accel = accel;
+ return valid;
+}
+
+bool fancurve_set_decel(struct fancurve *fancurve, int point_id, int decel)
+{
+ bool valid = decel >= 2 && decel <= 5;
+
+ if (valid)
+ fancurve->points[point_id].decel = decel;
+ return valid;
+}
+
+bool fancurve_set_cpu_temp_max(struct fancurve *fancurve, int point_id,
+ int value)
+{
+ bool valid = fancurve_is_valid_max_temp(value);
+
+ if (valid)
+ fancurve->points[point_id].cpu_max_temp_celsius = value;
+
+ return valid;
+}
+
+bool fancurve_set_gpu_temp_max(struct fancurve *fancurve, int point_id,
+ int value)
+{
+ bool valid = fancurve_is_valid_max_temp(value);
+
+ if (valid)
+ fancurve->points[point_id].gpu_max_temp_celsius = value;
+ return valid;
+}
+
+bool fancurve_set_ic_temp_max(struct fancurve *fancurve, int point_id,
+ int value)
+{
+ bool valid = fancurve_is_valid_max_temp(value);
+
+ if (valid)
+ fancurve->points[point_id].ic_max_temp_celsius = value;
+ return valid;
+}
+
+bool fancurve_set_cpu_temp_min(struct fancurve *fancurve, int point_id,
+ int value)
+{
+ bool valid = fancurve_is_valid_max_temp(value);
+
+ if (valid)
+ fancurve->points[point_id].cpu_min_temp_celsius = value;
+ return valid;
+}
+
+bool fancurve_set_gpu_temp_min(struct fancurve *fancurve, int point_id,
+ int value)
+{
+ bool valid = fancurve_is_valid_max_temp(value);
+
+ if (valid)
+ fancurve->points[point_id].gpu_min_temp_celsius = value;
+ return valid;
+}
+
+bool fancurve_set_ic_temp_min(struct fancurve *fancurve, int point_id,
+ int value)
+{
+ bool valid = fancurve_is_valid_max_temp(value);
+
+ if (valid)
+ fancurve->points[point_id].ic_min_temp_celsius = value;
+ return valid;
+}
+
+bool fancurve_set_size(struct fancurve *fancurve, int size, bool init_values)
+{
+ bool valid = size >= 1 && size <= MAXFANCURVESIZE;
+
+ if (!valid)
+ return false;
+ if (init_values && size < fancurve->size) {
+ // fancurve size is decreased, but last etnry alwasy needs 127 temperatures
+ // Note: size >=1
+ fancurve->points[size - 1].cpu_max_temp_celsius = 127;
+ fancurve->points[size - 1].ic_max_temp_celsius = 127;
+ fancurve->points[size - 1].gpu_max_temp_celsius = 127;
+ }
+ if (init_values && size > fancurve->size) {
+ // fancurve increased, so new entries need valid values
+ int i;
+ int last = fancurve->size > 0 ? fancurve->size - 1 : 0;
+
+ for (i = fancurve->size; i < size; ++i)
+ fancurve->points[i] = fancurve->points[last];
+ }
+ return true;
+}
+
+/* Read the fan curve from the EC.
+ *
+ * In newer models (>=2022) there is an ACPI/WMI to read fan curve as
+ * a whole. So read/write fan table as a whole to use
+ * same interface for both cases.
+ *
+ * It reads all points from EC memory, even if stored fancurve is smaller, so
+ * it can contain 0 entries.
+ */
+static int read_fancurve(struct ecram *ecram, const struct model_config *model,
+ struct fancurve *fancurve)
+{
+ size_t i = 0;
+
+ for (i = 0; i < MAXFANCURVESIZE; ++i) {
+ struct fancurve_point *point = &fancurve->points[i];
+
+ point->rpm1_raw =
+ ecram_read(ecram, model->registers->EXT_FAN1_BASE + i);
+ point->rpm2_raw =
+ ecram_read(ecram, model->registers->EXT_FAN2_BASE + i);
+
+ point->accel = ecram_read(
+ ecram, model->registers->EXT_FAN_ACC_BASE + i);
+ point->decel = ecram_read(
+ ecram, model->registers->EXT_FAN_DEC_BASE + i);
+ point->cpu_max_temp_celsius =
+ ecram_read(ecram, model->registers->EXT_CPU_TEMP + i);
+ point->cpu_min_temp_celsius = ecram_read(
+ ecram, model->registers->EXT_CPU_TEMP_HYST + i);
+ point->gpu_max_temp_celsius =
+ ecram_read(ecram, model->registers->EXT_GPU_TEMP + i);
+ point->gpu_min_temp_celsius = ecram_read(
+ ecram, model->registers->EXT_GPU_TEMP_HYST + i);
+ point->ic_max_temp_celsius =
+ ecram_read(ecram, model->registers->EXT_VRM_TEMP + i);
+ point->ic_min_temp_celsius = ecram_read(
+ ecram, model->registers->EXT_VRM_TEMP_HYST + i);
+ }
+
+ // Do not trust that hardware; It might suddendly report
+ // a larger size, so clamp it.
+ fancurve->size =
+ ecram_read(ecram, model->registers->EXT_FAN_POINTS_SIZE);
+ fancurve->size =
+ min(fancurve->size, (typeof(fancurve->size))(MAXFANCURVESIZE));
+ fancurve->current_point_i =
+ ecram_read(ecram, model->registers->EXT_FAN_CUR_POINT);
+ fancurve->current_point_i =
+ min(fancurve->current_point_i, fancurve->size);
+ return 0;
+}
+
+static int write_fancurve(struct ecram *ecram, const struct model_config *model,
+ const struct fancurve *fancurve, bool write_size)
+{
+ size_t i;
+ // Reset fan update counters (try to avoid any race conditions)
+ ecram_write(ecram, 0xC5FE, 0);
+ ecram_write(ecram, 0xC5FF, 0);
+ for (i = 0; i < MAXFANCURVESIZE; ++i) {
+ // Entries for points larger than fancurve size should be cleared
+ // to 0
+ const struct fancurve_point *point =
+ i < fancurve->size ? &fancurve->points[i] :
+ &fancurve_point_zero;
+
+ ecram_write(ecram, model->registers->EXT_FAN1_BASE + i,
+ point->rpm1_raw);
+ ecram_write(ecram, model->registers->EXT_FAN2_BASE + i,
+ point->rpm2_raw);
+
+ ecram_write(ecram, model->registers->EXT_FAN_ACC_BASE + i,
+ point->accel);
+ ecram_write(ecram, model->registers->EXT_FAN_DEC_BASE + i,
+ point->decel);
+
+ ecram_write(ecram, model->registers->EXT_CPU_TEMP + i,
+ point->cpu_max_temp_celsius);
+ ecram_write(ecram, model->registers->EXT_CPU_TEMP_HYST + i,
+ point->cpu_min_temp_celsius);
+ ecram_write(ecram, model->registers->EXT_GPU_TEMP + i,
+ point->gpu_max_temp_celsius);
+ ecram_write(ecram, model->registers->EXT_GPU_TEMP_HYST + i,
+ point->gpu_min_temp_celsius);
+ ecram_write(ecram, model->registers->EXT_VRM_TEMP + i,
+ point->ic_max_temp_celsius);
+ ecram_write(ecram, model->registers->EXT_VRM_TEMP_HYST + i,
+ point->ic_min_temp_celsius);
+ }
+
+ if (write_size) {
+ ecram_write(ecram, model->registers->EXT_FAN_POINTS_SIZE,
+ fancurve->size);
+ }
+
+ // Reset current fan level to 0, so algorithm in EC
+ // selects fan curve point again and resetting hysterisis
+ // effects
+ ecram_write(ecram, model->registers->EXT_FAN_CUR_POINT, 0);
+
+ // Reset internal fan levels
+ ecram_write(ecram, 0xC634, 0); // CPU
+ ecram_write(ecram, 0xC635, 0); // GPU
+ ecram_write(ecram, 0xC636, 0); // SENSOR
+
+ return 0;
+}
+
+static ssize_t fancurve_print_seqfile(const struct fancurve *fancurve,
+ struct seq_file *s)
+{
+ int i;
+
+ seq_printf(
+ s,
+ "rpm1|rpm2|acceleration|deceleration|cpu_min_temp|cpu_max_temp|gpu_min_temp|gpu_max_temp|ic_min_temp|ic_max_temp\n");
+ for (i = 0; i < fancurve->size; ++i) {
+ const struct fancurve_point *point = &fancurve->points[i];
+
+ seq_printf(
+ s, "%d\t %d\t %d\t %d\t %d\t %d\t %d\t %d\t %d\t %d\n",
+ point->rpm1_raw * 100, point->rpm2_raw * 100,
+ point->accel, point->decel, point->cpu_min_temp_celsius,
+ point->cpu_max_temp_celsius,
+ point->gpu_min_temp_celsius,
+ point->gpu_max_temp_celsius, point->ic_min_temp_celsius,
+ point->ic_max_temp_celsius);
+ }
+ return 0;
+}
+
+/* ============================= */
+/* Global and shared data between */
+/* all calls to this module */
+/* ============================ */
+// Implemented like ideapad-laptop.c but currenlty still
+// wihtout dynamic memory allocation (instaed global _priv)
+
+struct legion_private {
+ struct platform_device *platform_device;
+ // TODO: remove or keep? init?
+ // struct acpi_device *adev;
+
+ // Method to access ECRAM
+ struct ecram ecram;
+ // Configuration with registers an ECRAM access method
+ const struct model_config *conf;
+
+ // TODO: maybe refactor an keep only local to each function
+ // last known fan curve
+ struct fancurve fancurve;
+ // configured fan curve from user space
+ struct fancurve fancurve_configured;
+
+ // update lock, when partial values of fancurve are changed
+ struct mutex fancurve_mutex;
+
+ //interfaces
+ struct dentry *debugfs_dir;
+ struct device *hwmon_dev;
+ struct platform_profile_handler platform_profile_handler;
+
+ // TODO: remove?
+ bool loaded;
+};
+
+// shared between different drivers: WMI, platform and proteced by mutex
+static struct legion_private *legion_shared;
+static struct legion_private _priv;
+static DEFINE_MUTEX(legion_shared_mutex);
+
+static int legion_shared_init(struct legion_private *priv)
+{
+ int ret;
+
+ mutex_lock(&legion_shared_mutex);
+
+ if (!legion_shared) {
+ legion_shared = priv;
+ mutex_init(&legion_shared->fancurve_mutex);
+ ret = 0;
+ } else {
+ pr_warn("Found multiple platform devices\n");
+ ret = -EINVAL;
+ }
+
+ priv->loaded = true;
+ mutex_unlock(&legion_shared_mutex);
+
+ return ret;
+}
+
+static void legion_shared_exit(struct legion_private *priv)
+{
+ pr_info("Unloading legion shared\n");
+ mutex_lock(&legion_shared_mutex);
+
+ if (legion_shared == priv)
+ legion_shared = NULL;
+
+ mutex_unlock(&legion_shared_mutex);
+ pr_info("Unloading legion shared done\n");
+}
+
+/* ============================= */
+/* debugfs interface */
+/* ============================ */
+
+static int debugfs_ecmemory_show(struct seq_file *s, void *unused)
+{
+ struct legion_private *priv = s->private;
+ size_t offset;
+
+ for (offset = 0; offset < priv->conf->memoryio_size; ++offset) {
+ char value = ecram_read(&priv->ecram,
+ priv->conf->memoryio_physical_ec_start +
+ offset);
+
+ seq_write(s, &value, 1);
+ }
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(debugfs_ecmemory);
+
+static int debugfs_fancurve_show(struct seq_file *s, void *unused)
+{
+ struct legion_private *priv = s->private;
+ bool is_minifancurve;
+ bool is_lockfancontroller;
+ bool is_maximumfanspeed;
+ int err;
+
+ seq_printf(s, "EC Chip ID: %x\n", read_ec_id(&priv->ecram, priv->conf));
+ seq_printf(s, "EC Chip Version: %x\n",
+ read_ec_version(&priv->ecram, priv->conf));
+ seq_printf(s, "legion_laptop features: %s\n", LEGIONFEATURES);
+ seq_printf(s, "legion_laptop ec_readonly: %d\n", ec_readonly);
+ read_fancurve(&priv->ecram, priv->conf, &priv->fancurve);
+
+ seq_printf(s, "minifancurve feature enabled: %d\n",
+ priv->conf->has_minifancurve);
+ err = read_minifancurve(&priv->ecram, priv->conf, &is_minifancurve);
+ seq_printf(s, "minifancurve on cool: %s\n",
+ err ? "error" : (is_minifancurve ? "true" : "false"));
+ err = read_lockfancontroller(&priv->ecram, priv->conf,
+ &is_lockfancontroller);
+ seq_printf(s, "lock fan controller: %s\n",
+ err ? "error" : (is_lockfancontroller ? "true" : "false"));
+ err = read_maximumfanspeed(&priv->ecram, priv->conf,
+ &is_maximumfanspeed);
+ seq_printf(s, "enable maximumfanspeed: %s\n",
+ err ? "error" : (is_maximumfanspeed ? "true" : "false"));
+ seq_printf(s, "enable maximumfanspeed status: %d\n", err);
+
+ seq_printf(s, "fan curve current point id: %ld\n",
+ priv->fancurve.current_point_i);
+ seq_printf(s, "fan curve points size: %ld\n", priv->fancurve.size);
+
+ seq_puts(s, "Current fan curve in hardware (embedded controller):\n");
+ fancurve_print_seqfile(&priv->fancurve, s);
+ seq_puts(s, "=====================\n");
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(debugfs_fancurve);
+
+static void legion_debugfs_init(struct legion_private *priv)
+{
+ struct dentry *dir;
+
+ // TODO: remove this note
+ // Note: as other kernel modules, do not catch errors here
+ // because if kernel is build without debugfs this
+ // will return an error but module still has to
+ // work, just without debugfs
+ // TODO: what permissions; some modules do 400
+ // other do 444
+ dir = debugfs_create_dir(LEGION_DRVR_SHORTNAME, NULL);
+ debugfs_create_file("fancurve", 0444, dir, priv,
+ &debugfs_fancurve_fops);
+ debugfs_create_file("ecmemory", 0444, dir, priv,
+ &debugfs_ecmemory_fops);
+
+ priv->debugfs_dir = dir;
+}
+
+static void legion_debugfs_exit(struct legion_private *priv)
+{
+ pr_info("Unloading legion dubugfs\n");
+ // The following is does nothing if pointer is NULL
+ debugfs_remove_recursive(priv->debugfs_dir);
+ priv->debugfs_dir = NULL;
+ pr_info("Unloading legion dubugfs done\n");
+}
+
+/* ============================= */
+/* sysfs interface */
+/* ============================ */
+
+static ssize_t powermode_show(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct legion_private *priv = dev_get_drvdata(dev);
+ int power_mode = read_powermode(&priv->ecram, priv->conf);
+
+ return sysfs_emit(buf, "%d\n", power_mode);
+}
+
+static ssize_t powermode_store(struct device *dev,
+ struct device_attribute *attr, const char *buf,
+ size_t count)
+{
+ struct legion_private *priv = dev_get_drvdata(dev);
+ int powermode;
+ int err;
+
+ err = kstrtouint(buf, 0, &powermode);
+ if (err)
+ return err;
+
+ err = write_powermode(&priv->ecram, priv->conf, powermode);
+ if (err)
+ return -EINVAL;
+
+ // TODO: better?
+ // we have to wait a bit before change is done in hardware and
+ // readback done after notifying returns correct value, otherwise
+ // the notified reader will read old value
+ msleep(500);
+ platform_profile_notify();
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(powermode);
+
+static ssize_t lockfancontroller_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ struct legion_private *priv = dev_get_drvdata(dev);
+ bool is_lockfancontroller;
+ int err;
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = read_lockfancontroller(&priv->ecram, priv->conf,
+ &is_lockfancontroller);
+ mutex_unlock(&priv->fancurve_mutex);
+ if (err)
+ return -EINVAL;
+
+ return sysfs_emit(buf, "%d\n", is_lockfancontroller);
+}
+
+static ssize_t lockfancontroller_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct legion_private *priv = dev_get_drvdata(dev);
+ bool is_lockfancontroller;
+ int err;
+
+ err = kstrtobool(buf, &is_lockfancontroller);
+ if (err)
+ return err;
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = write_lockfancontroller(&priv->ecram, priv->conf,
+ is_lockfancontroller);
+ mutex_unlock(&priv->fancurve_mutex);
+ if (err)
+ return -EINVAL;
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(lockfancontroller);
+
+static ssize_t keyboard_backlight_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int state;
+ struct legion_private *priv = dev_get_drvdata(dev);
+
+ read_keyboard_backlight(&priv->ecram, priv->conf, &state);
+ return sysfs_emit(buf, "%d\n", state);
+}
+
+static ssize_t keyboard_backlight_store(struct device *dev,
+ struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ struct legion_private *priv = dev_get_drvdata(dev);
+ int state;
+ int err;
+
+ err = kstrtouint(buf, 0, &state);
+ if (err)
+ return err;
+
+ err = write_keyboard_backlight(&priv->ecram, priv->conf, state);
+ if (err)
+ return -EINVAL;
+
+ return count;
+}
+
+static DEVICE_ATTR_RW(keyboard_backlight);
+
+static struct attribute *legion_sysfs_attributes[] = {
+ &dev_attr_powermode.attr, &dev_attr_lockfancontroller.attr,
+ &dev_attr_keyboard_backlight.attr, NULL
+};
+
+static const struct attribute_group legion_attribute_group = {
+ .attrs = legion_sysfs_attributes
+};
+
+static int legion_sysfs_init(struct legion_private *priv)
+{
+ return device_add_group(&priv->platform_device->dev,
+ &legion_attribute_group);
+}
+
+static void legion_sysfs_exit(struct legion_private *priv)
+{
+ pr_info("Unloading legion sysfs\n");
+ device_remove_group(&priv->platform_device->dev,
+ &legion_attribute_group);
+ pr_info("Unloading legion sysfs done\n");
+}
+
+/* ============================= */
+/* WMI + ACPI */
+/* ============================ */
+// heavily based on ideapad_laptop.c
+
+// TODO: proper names if meaning of all events is clear
+enum LEGION_WMI_EVENT {
+ LEGION_WMI_EVENT_GAMEZONE = 1,
+ LEGION_EVENT_A,
+ LEGION_EVENT_B,
+ LEGION_EVENT_C,
+ LEGION_EVENT_D,
+ LEGION_EVENT_E,
+ LEGION_EVENT_F,
+ LEGION_EVENT_G
+};
+
+struct legion_wmi_private {
+ enum LEGION_WMI_EVENT event;
+};
+
+//static void legion_wmi_notify2(u32 value, void *context)
+// {
+// pr_info("WMI notify\n" );
+// }
+
+static void legion_wmi_notify(struct wmi_device *wdev, union acpi_object *data)
+{
+ struct legion_wmi_private *wpriv;
+ struct legion_private *priv;
+
+ mutex_lock(&legion_shared_mutex);
+ priv = legion_shared;
+ if ((!priv) && (priv->loaded)) {
+ pr_info("Received WMI event while not initialized!\n");
+ goto unlock;
+ }
+
+ wpriv = dev_get_drvdata(&wdev->dev);
+ switch (wpriv->event) {
+ case LEGION_EVENT_A:
+ pr_info("Fan event: legion type: %d; acpi type: %d (%d=integer)",
+ wpriv->event, data->type, ACPI_TYPE_INTEGER);
+ // TODO: here it is too early (first unlock mutext, then wait a bit)
+ //platform_profile_notify();
+ break;
+ default:
+ pr_info("Event: legion type: %d; acpi type: %d (%d=integer)",
+ wpriv->event, data->type, ACPI_TYPE_INTEGER);
+ break;
+ }
+
+unlock:
+ mutex_unlock(&legion_shared_mutex);
+ // todo; fix that!
+ // problem: we get a event just before the powermode change (from the key?),
+ // so if we notify to early, it will read the old power mode/platform profile
+ msleep(500);
+ platform_profile_notify();
+}
+
+static int legion_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+ struct legion_wmi_private *wpriv;
+
+ wpriv = devm_kzalloc(&wdev->dev, sizeof(*wpriv), GFP_KERNEL);
+ if (!wpriv)
+ return -ENOMEM;
+
+ *wpriv = *(const struct legion_wmi_private *)context;
+
+ dev_set_drvdata(&wdev->dev, wpriv);
+ dev_info(&wdev->dev, "Register after probing for WMI.\n");
+ return 0;
+}
+
+static const struct legion_wmi_private legion_wmi_context_gamezone = {
+ .event = LEGION_WMI_EVENT_GAMEZONE
+};
+static const struct legion_wmi_private legion_wmi_context_a = {
+ .event = LEGION_EVENT_A
+};
+static const struct legion_wmi_private legion_wmi_context_b = {
+ .event = LEGION_EVENT_B
+};
+static const struct legion_wmi_private legion_wmi_context_c = {
+ .event = LEGION_EVENT_C
+};
+static const struct legion_wmi_private legion_wmi_context_d = {
+ .event = LEGION_EVENT_D
+};
+static const struct legion_wmi_private legion_wmi_context_e = {
+ .event = LEGION_EVENT_E
+};
+static const struct legion_wmi_private legion_wmi_context_f = {
+ .event = LEGION_EVENT_F
+};
+
+// check if really a method
+#define LEGION_WMI_GAMEZONE_GUID "887B54E3-DDDC-4B2C-8B88-68A26A8835D0"
+
+#define LEGION_WMI_GUID_FAN_EVENT "D320289E-8FEA-41E0-86F9-611D83151B5F"
+#define LEGION_WMI_GUID_FAN2_EVENT "bc72a435-e8c1-4275-b3e2-d8b8074aba59"
+#define LEGION_WMI_GUID_GAMEZONE_KEY_EVENT \
+ "10afc6d9-ea8b-4590-a2e7-1cd3c84bb4b1"
+#define LEGION_WMI_GUID_GAMEZONE_GPU_EVENT \
+ "bfd42481-aee3-4502-a107-afb68425c5f8"
+#define LEGION_WMI_GUID_GAMEZONE_OC_EVENT "d062906b-12d4-4510-999d-4831ee80e985"
+#define LEGION_WMI_GUID_GAMEZONE_TEMP_EVENT \
+ "bfd42481-aee3-4501-a107-afb68425c5f8"
+//#define LEGION_WMI_GUID_GAMEZONE_DATA_EVENT "887b54e3-dddc-4b2c-8b88-68a26a8835d0"
+
+static const struct wmi_device_id legion_wmi_ids[] = {
+ { LEGION_WMI_GAMEZONE_GUID, &legion_wmi_context_gamezone },
+ { LEGION_WMI_GUID_FAN_EVENT, &legion_wmi_context_a },
+ { LEGION_WMI_GUID_FAN2_EVENT, &legion_wmi_context_b },
+ { LEGION_WMI_GUID_GAMEZONE_KEY_EVENT, &legion_wmi_context_c },
+ { LEGION_WMI_GUID_GAMEZONE_GPU_EVENT, &legion_wmi_context_d },
+ { LEGION_WMI_GUID_GAMEZONE_OC_EVENT, &legion_wmi_context_e },
+ { LEGION_WMI_GUID_GAMEZONE_TEMP_EVENT, &legion_wmi_context_f },
+ { "8FC0DE0C-B4E4-43FD-B0F3-8871711C1294",
+ &legion_wmi_context_gamezone }, /* Legion 5 */
+ {},
+};
+MODULE_DEVICE_TABLE(wmi, legion_wmi_ids);
+
+static struct wmi_driver legion_wmi_driver = {
+ .driver = {
+ .name = "legion_wmi",
+ },
+ .id_table = legion_wmi_ids,
+ .probe = legion_wmi_probe,
+ .notify = legion_wmi_notify,
+};
+
+//acpi_status status = wmi_install_notify_handler(LEGION_WMI_GAMEZONE_GUID,
+// legion_wmi_notify2, NULL);
+//if (ACPI_FAILURE(status)) {
+// return -ENODEV;
+//}
+//return 0;
+
+static int legion_wmi_init(void)
+{
+ return wmi_driver_register(&legion_wmi_driver);
+}
+
+static void legion_wmi_exit(void)
+{
+ // TODO: remove this
+ pr_info("Unloading legion WMI\n");
+
+ //wmi_remove_notify_handler(LEGION_WMI_GAMEZONE_GUID);
+ wmi_driver_unregister(&legion_wmi_driver);
+ pr_info("Unloading legion WMI done\n");
+}
+
+/* ============================= */
+/* Platform profile */
+/* ============================ */
+
+enum LEGION_POWERMODE {
+ LEGION_POWERMODE_BALANCED = 0,
+ LEGION_POWERMODE_PERFORMANCE = 1,
+ LEGION_POWERMODE_QUIET = 2,
+};
+
+static int legion_platform_profile_get(struct platform_profile_handler *pprof,
+ enum platform_profile_option *profile)
+{
+ int powermode;
+ struct legion_private *priv;
+
+ priv = container_of(pprof, struct legion_private,
+ platform_profile_handler);
+ powermode = read_powermode(&priv->ecram, priv->conf);
+
+ switch (powermode) {
+ case LEGION_POWERMODE_BALANCED:
+ *profile = PLATFORM_PROFILE_BALANCED;
+ break;
+ case LEGION_POWERMODE_PERFORMANCE:
+ *profile = PLATFORM_PROFILE_PERFORMANCE;
+ break;
+ case LEGION_POWERMODE_QUIET:
+ *profile = PLATFORM_PROFILE_QUIET;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static int legion_platform_profile_set(struct platform_profile_handler *pprof,
+ enum platform_profile_option profile)
+{
+ int powermode;
+ struct legion_private *priv;
+
+ priv = container_of(pprof, struct legion_private,
+ platform_profile_handler);
+
+ switch (profile) {
+ case PLATFORM_PROFILE_BALANCED:
+ powermode = LEGION_POWERMODE_BALANCED;
+ break;
+ case PLATFORM_PROFILE_PERFORMANCE:
+ powermode = LEGION_POWERMODE_PERFORMANCE;
+ break;
+ case PLATFORM_PROFILE_QUIET:
+ powermode = LEGION_POWERMODE_QUIET;
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return write_powermode(&priv->ecram, priv->conf, powermode);
+}
+
+static int legion_platform_profile_init(struct legion_private *priv)
+{
+ int err;
+
+ priv->platform_profile_handler.profile_get =
+ legion_platform_profile_get;
+ priv->platform_profile_handler.profile_set =
+ legion_platform_profile_set;
+
+ set_bit(PLATFORM_PROFILE_QUIET, priv->platform_profile_handler.choices);
+ set_bit(PLATFORM_PROFILE_BALANCED,
+ priv->platform_profile_handler.choices);
+ set_bit(PLATFORM_PROFILE_PERFORMANCE,
+ priv->platform_profile_handler.choices);
+
+ err = platform_profile_register(&priv->platform_profile_handler);
+ if (err)
+ return err;
+
+ return 0;
+}
+
+static void legion_platform_profile_exit(struct legion_private *priv)
+{
+ pr_info("Unloading legion platform profile\n");
+ platform_profile_remove();
+ pr_info("Unloading legion platform profile done\n");
+}
+
+/* ============================= */
+/* hwom interface */
+/* ============================ */
+
+// hw-mon interface
+
+// todo: register_group or register_info?
+
+// TODO: use one common function (like here) or one function per attribute?
+static ssize_t sensor_label_show(struct device *dev,
+ struct device_attribute *attr, char *buf)
+{
+ int sensor_id = (to_sensor_dev_attr(attr))->index;
+ const char *label;
+
+ switch (sensor_id) {
+ case SENSOR_CPU_TEMP_ID:
+ label = "CPU Temperature\n";
+ break;
+ case SENSOR_GPU_TEMP_ID:
+ label = "GPU Temperature\n";
+ break;
+ case SENSOR_IC_TEMP_ID:
+ label = "IC Temperature\n";
+ break;
+ case SENSOR_FAN1_RPM_ID:
+ label = "Fan 1\n";
+ break;
+ case SENSOR_FAN2_RPM_ID:
+ label = "Fan 2\n";
+ break;
+ case SENSOR_FAN1_TARGET_RPM_ID:
+ label = "Fan 1 Target\n";
+ break;
+ case SENSOR_FAN2_TARGET_RPM_ID:
+ label = "Fan 2 Target\n";
+ break;
+ default:
+ return -EOPNOTSUPP;
+ }
+
+ return sprintf(buf, label);
+}
+
+// TODO: use one common function (like here) or one function per attribute?
+static ssize_t sensor_show(struct device *dev, struct device_attribute *devattr,
+ char *buf)
+{
+ struct legion_private *priv = dev_get_drvdata(dev);
+ int sensor_id = (to_sensor_dev_attr(devattr))->index;
+ struct sensor_values values;
+ int outval;
+
+ read_sensor_values(&priv->ecram, priv->conf, &values);
+
+ switch (sensor_id) {
+ case SENSOR_CPU_TEMP_ID:
+ outval = 1000 * values.cpu_temp_celsius;
+ break;
+ case SENSOR_GPU_TEMP_ID:
+ outval = 1000 * values.gpu_temp_celsius;
+ break;
+ case SENSOR_IC_TEMP_ID:
+ outval = 1000 * values.ic_temp_celsius;
+ break;
+ case SENSOR_FAN1_RPM_ID:
+ outval = values.fan1_rpm;
+ break;
+ case SENSOR_FAN2_RPM_ID:
+ outval = values.fan2_rpm;
+ break;
+ case SENSOR_FAN1_TARGET_RPM_ID:
+ outval = values.fan1_target_rpm;
+ break;
+ case SENSOR_FAN2_TARGET_RPM_ID:
+ outval = values.fan2_target_rpm;
+ break;
+ default:
+ pr_info("Error reading sensor value with id %d\n", sensor_id);
+ return -EOPNOTSUPP;
+ }
+
+ return sprintf(buf, "%d\n", outval);
+}
+
+static SENSOR_DEVICE_ATTR_RO(temp1_input, sensor, SENSOR_CPU_TEMP_ID);
+static SENSOR_DEVICE_ATTR_RO(temp1_label, sensor_label, SENSOR_CPU_TEMP_ID);
+static SENSOR_DEVICE_ATTR_RO(temp2_input, sensor, SENSOR_GPU_TEMP_ID);
+static SENSOR_DEVICE_ATTR_RO(temp2_label, sensor_label, SENSOR_GPU_TEMP_ID);
+static SENSOR_DEVICE_ATTR_RO(temp3_input, sensor, SENSOR_IC_TEMP_ID);
+static SENSOR_DEVICE_ATTR_RO(temp3_label, sensor_label, SENSOR_IC_TEMP_ID);
+static SENSOR_DEVICE_ATTR_RO(fan1_input, sensor, SENSOR_FAN1_RPM_ID);
+static SENSOR_DEVICE_ATTR_RO(fan1_label, sensor_label, SENSOR_FAN1_RPM_ID);
+static SENSOR_DEVICE_ATTR_RO(fan2_input, sensor, SENSOR_FAN2_RPM_ID);
+static SENSOR_DEVICE_ATTR_RO(fan2_label, sensor_label, SENSOR_FAN2_RPM_ID);
+static SENSOR_DEVICE_ATTR_RO(fan1_target, sensor, SENSOR_FAN1_TARGET_RPM_ID);
+static SENSOR_DEVICE_ATTR_RO(fan2_target, sensor, SENSOR_FAN2_TARGET_RPM_ID);
+
+static struct attribute *sensor_hwmon_attributes[] = {
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_label.dev_attr.attr,
+ &sensor_dev_attr_temp2_input.dev_attr.attr,
+ &sensor_dev_attr_temp2_label.dev_attr.attr,
+ &sensor_dev_attr_temp3_input.dev_attr.attr,
+ &sensor_dev_attr_temp3_label.dev_attr.attr,
+ &sensor_dev_attr_fan1_input.dev_attr.attr,
+ &sensor_dev_attr_fan1_label.dev_attr.attr,
+ &sensor_dev_attr_fan2_input.dev_attr.attr,
+ &sensor_dev_attr_fan2_label.dev_attr.attr,
+ &sensor_dev_attr_fan1_target.dev_attr.attr,
+ &sensor_dev_attr_fan2_target.dev_attr.attr,
+ NULL
+};
+
+static ssize_t autopoint_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ struct fancurve fancurve;
+ int err;
+ int value;
+ struct legion_private *priv = dev_get_drvdata(dev);
+ int fancurve_attr_id = to_sensor_dev_attr_2(devattr)->nr;
+ int point_id = to_sensor_dev_attr_2(devattr)->index;
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = read_fancurve(&priv->ecram, priv->conf, &fancurve);
+ mutex_unlock(&priv->fancurve_mutex);
+
+ if (err) {
+ pr_info("Reading fancurve failed\n");
+ return -EOPNOTSUPP;
+ }
+ if (!(point_id >= 0 && point_id < MAXFANCURVESIZE)) {
+ pr_info("Reading fancurve failed due to wrong point id: %d\n",
+ point_id);
+ return -EOPNOTSUPP;
+ }
+
+ switch (fancurve_attr_id) {
+ case FANCURVE_ATTR_PWM1:
+ value = fancurve.points[point_id].rpm1_raw * 100;
+ break;
+ case FANCURVE_ATTR_PWM2:
+ value = fancurve.points[point_id].rpm2_raw * 100;
+ break;
+ case FANCURVE_ATTR_CPU_TEMP:
+ value = fancurve.points[point_id].cpu_max_temp_celsius;
+ break;
+ case FANCURVE_ATTR_CPU_HYST:
+ value = fancurve.points[point_id].cpu_min_temp_celsius;
+ break;
+ case FANCURVE_ATTR_GPU_TEMP:
+ value = fancurve.points[point_id].gpu_max_temp_celsius;
+ break;
+ case FANCURVE_ATTR_GPU_HYST:
+ value = fancurve.points[point_id].gpu_min_temp_celsius;
+ break;
+ case FANCURVE_ATTR_IC_TEMP:
+ value = fancurve.points[point_id].ic_max_temp_celsius;
+ break;
+ case FANCURVE_ATTR_IC_HYST:
+ value = fancurve.points[point_id].ic_min_temp_celsius;
+ break;
+ case FANCURVE_ATTR_ACCEL:
+ value = fancurve.points[point_id].accel;
+ break;
+ case FANCURVE_ATTR_DECEL:
+ value = fancurve.points[point_id].decel;
+ break;
+ case FANCURVE_SIZE:
+ value = fancurve.size;
+ break;
+ default:
+ pr_info("Reading fancurve failed due to wrong attribute id: %d\n",
+ fancurve_attr_id);
+ return -EOPNOTSUPP;
+ }
+
+ return sprintf(buf, "%d\n", value);
+}
+
+static ssize_t autopoint_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ struct fancurve fancurve;
+ int err;
+ int value;
+ bool valid;
+ struct legion_private *priv = dev_get_drvdata(dev);
+ int fancurve_attr_id = to_sensor_dev_attr_2(devattr)->nr;
+ int point_id = to_sensor_dev_attr_2(devattr)->index;
+
+ if (!(point_id >= 0 && point_id < MAXFANCURVESIZE)) {
+ pr_info("Reading fancurve failed due to wrong point id: %d\n",
+ point_id);
+ err = -EOPNOTSUPP;
+ goto error;
+ }
+
+ err = kstrtoint(buf, 0, &value);
+ if (err) {
+ pr_info("Parse for hwmon store is not succesful: error:%d; point_id: %d; fancurve_attr_id: %d\\n",
+ err, point_id, fancurve_attr_id);
+ goto error;
+ }
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = read_fancurve(&priv->ecram, priv->conf, &fancurve);
+
+ if (err) {
+ pr_info("Reading fancurve failed\n");
+ err = -EOPNOTSUPP;
+ goto error_mutex;
+ }
+
+ switch (fancurve_attr_id) {
+ case FANCURVE_ATTR_PWM1:
+ valid = fancurve_set_rpm1(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_PWM2:
+ valid = fancurve_set_rpm2(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_CPU_TEMP:
+ valid = fancurve_set_cpu_temp_max(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_CPU_HYST:
+ valid = fancurve_set_cpu_temp_min(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_GPU_TEMP:
+ valid = fancurve_set_gpu_temp_max(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_GPU_HYST:
+ valid = fancurve_set_gpu_temp_min(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_IC_TEMP:
+ valid = fancurve_set_ic_temp_max(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_IC_HYST:
+ valid = fancurve_set_ic_temp_min(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_ACCEL:
+ valid = fancurve_set_accel(&fancurve, point_id, value);
+ break;
+ case FANCURVE_ATTR_DECEL:
+ valid = fancurve_set_decel(&fancurve, point_id, value);
+ break;
+ case FANCURVE_SIZE:
+ valid = fancurve_set_size(&fancurve, value, true);
+ break;
+ default:
+ pr_info("Writing fancurve failed due to wrong attribute id: %d\n",
+ fancurve_attr_id);
+ err = -EOPNOTSUPP;
+ goto error_mutex;
+ }
+
+ if (!valid) {
+ pr_info("Ignoring invalid fancurve value %d for attribute %d at point %d\n",
+ value, fancurve_attr_id, point_id);
+ err = -EOPNOTSUPP;
+ goto error_mutex;
+ }
+
+ err = write_fancurve(&priv->ecram, priv->conf, &fancurve, false);
+ if (err) {
+ pr_info("Writing fancurve failed for accessing hwmon at point_id: %d\n",
+ point_id);
+ err = -EOPNOTSUPP;
+ goto error_mutex;
+ }
+
+ mutex_unlock(&priv->fancurve_mutex);
+ return count;
+
+error_mutex:
+ mutex_unlock(&priv->fancurve_mutex);
+error:
+ return count;
+}
+
+// rpm1
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point9_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point10_pwm, autopoint,
+ FANCURVE_ATTR_PWM1, 9);
+// rpm2
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point9_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point10_pwm, autopoint,
+ FANCURVE_ATTR_PWM2, 9);
+// CPU temp
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point9_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point10_temp, autopoint,
+ FANCURVE_ATTR_CPU_TEMP, 9);
+// CPU temp hyst
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point9_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point10_temp_hyst, autopoint,
+ FANCURVE_ATTR_CPU_HYST, 9);
+// GPU temp
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point9_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point10_temp, autopoint,
+ FANCURVE_ATTR_GPU_TEMP, 9);
+// GPU temp hyst
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point1_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point2_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point3_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point4_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point5_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point6_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point7_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point8_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point9_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm2_auto_point10_temp_hyst, autopoint,
+ FANCURVE_ATTR_GPU_HYST, 9);
+// IC temp
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point9_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point10_temp, autopoint,
+ FANCURVE_ATTR_IC_TEMP, 9);
+// IC temp hyst
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point1_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point2_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point3_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point4_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point5_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point6_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point7_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point8_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point9_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm3_auto_point10_temp_hyst, autopoint,
+ FANCURVE_ATTR_IC_HYST, 9);
+// accel
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point9_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point10_accel, autopoint,
+ FANCURVE_ATTR_ACCEL, 9);
+// decel
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point1_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 0);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point2_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 1);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point3_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 2);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point4_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 3);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point5_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 4);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point6_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 5);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point7_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 6);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point8_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 7);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point9_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 8);
+static SENSOR_DEVICE_ATTR_2_RW(pwm1_auto_point10_decel, autopoint,
+ FANCURVE_ATTR_DECEL, 9);
+//size
+static SENSOR_DEVICE_ATTR_2_RW(auto_points_size, autopoint, FANCURVE_SIZE, 0);
+
+static ssize_t minifancurve_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ bool value;
+ int err;
+ struct legion_private *priv = dev_get_drvdata(dev);
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = read_minifancurve(&priv->ecram, priv->conf, &value);
+ if (err) {
+ err = -1;
+ pr_info("Reading minifancurve not succesful\n");
+ goto error_unlock;
+ }
+ mutex_unlock(&priv->fancurve_mutex);
+ return sprintf(buf, "%d\n", value);
+
+error_unlock:
+ mutex_unlock(&priv->fancurve_mutex);
+ return -1;
+}
+
+static ssize_t minifancurve_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int value;
+ int err;
+ struct legion_private *priv = dev_get_drvdata(dev);
+
+ err = kstrtoint(buf, 0, &value);
+ if (err) {
+ err = -1;
+ pr_info("Parse for hwmon store is not succesful: error:%d\n",
+ err);
+ goto error;
+ }
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = write_minifancurve(&priv->ecram, priv->conf, value);
+ if (err) {
+ err = -1;
+ pr_info("Writing minifancurve not succesful\n");
+ goto error_unlock;
+ }
+ mutex_unlock(&priv->fancurve_mutex);
+ return count;
+
+error_unlock:
+ mutex_unlock(&priv->fancurve_mutex);
+error:
+ return err;
+}
+
+static SENSOR_DEVICE_ATTR_RW(minifancurve, minifancurve, 0);
+
+static ssize_t pwm1_mode_show(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ bool value;
+ int err;
+ struct legion_private *priv = dev_get_drvdata(dev);
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = read_maximumfanspeed(&priv->ecram, priv->conf, &value);
+ if (err) {
+ err = -1;
+ pr_info("Reading pwm1_mode/maximumfanspeed not succesful\n");
+ goto error_unlock;
+ }
+ mutex_unlock(&priv->fancurve_mutex);
+ return sprintf(buf, "%d\n", value ? 0 : 2);
+
+error_unlock:
+ mutex_unlock(&priv->fancurve_mutex);
+ return -1;
+}
+
+static ssize_t pwm1_mode_store(struct device *dev,
+ struct device_attribute *devattr,
+ const char *buf, size_t count)
+{
+ int value;
+ int is_maximumfanspeed;
+ int err;
+ struct legion_private *priv = dev_get_drvdata(dev);
+
+ err = kstrtoint(buf, 0, &value);
+ if (err) {
+ err = -1;
+ pr_info("Parse for hwmon store is not succesful: error:%d\n",
+ err);
+ goto error;
+ }
+ is_maximumfanspeed = value == 0;
+
+ mutex_lock(&priv->fancurve_mutex);
+ err = write_maximumfanspeed(&priv->ecram, priv->conf,
+ is_maximumfanspeed);
+ if (err) {
+ err = -1;
+ pr_info("Writing pwm1_mode/maximumfanspeed not succesful\n");
+ goto error_unlock;
+ }
+ mutex_unlock(&priv->fancurve_mutex);
+ return count;
+
+error_unlock:
+ mutex_unlock(&priv->fancurve_mutex);
+error:
+ return err;
+}
+
+static SENSOR_DEVICE_ATTR_RW(pwm1_mode, pwm1_mode, 0);
+
+static struct attribute *fancurve_hwmon_attributes[] = {
+ &sensor_dev_attr_pwm1_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point6_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point7_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point8_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point6_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point7_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point8_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point9_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point10_pwm.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point6_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point7_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point8_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point6_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point7_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point8_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point6_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point7_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point8_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point9_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point10_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point2_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point3_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point4_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point5_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point6_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point7_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point8_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point9_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm2_auto_point10_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point1_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point6_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point7_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point8_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point9_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point10_temp.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point1_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point2_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point3_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point4_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point5_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point6_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point7_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point8_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point9_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm3_auto_point10_temp_hyst.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point6_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point7_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point8_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_accel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point1_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point2_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point3_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point4_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point5_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point6_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point7_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point8_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point9_decel.dev_attr.attr,
+ &sensor_dev_attr_pwm1_auto_point10_decel.dev_attr.attr,
+ //
+ &sensor_dev_attr_auto_points_size.dev_attr.attr,
+ &sensor_dev_attr_minifancurve.dev_attr.attr,
+ &sensor_dev_attr_pwm1_mode.dev_attr.attr, NULL
+};
+
+static umode_t legion_is_visible(struct kobject *kobj, struct attribute *attr,
+ int idx)
+{
+ bool supported = true;
+ struct device *dev = kobj_to_dev(kobj);
+ struct legion_private *priv = dev_get_drvdata(dev);
+
+ if (attr == &sensor_dev_attr_minifancurve.dev_attr.attr)
+ supported = priv->conf->has_minifancurve;
+
+ return supported ? attr->mode : 0;
+}
+
+static const struct attribute_group legion_hwmon_sensor_group = {
+ .attrs = sensor_hwmon_attributes,
+ .is_visible = NULL
+};
+
+static const struct attribute_group legion_hwmon_fancurve_group = {
+ .attrs = fancurve_hwmon_attributes,
+ .is_visible = legion_is_visible,
+};
+
+static const struct attribute_group *legion_hwmon_groups[] = {
+ &legion_hwmon_sensor_group, &legion_hwmon_fancurve_group, NULL
+};
+
+ssize_t legion_hwmon_init(struct legion_private *priv)
+{
+ //TODO: use hwmon_device_register_with_groups or
+ // hwmon_device_register_with_info (latter means all hwmon functions have to be
+ // changed)
+ // some laptop driver do it in one way, some in the other
+ // TODO: Use devm_hwmon_device_register_with_groups ?
+ // some laptop drivers use this, some
+ struct device *hwmon_dev = hwmon_device_register_with_groups(
+ &priv->platform_device->dev, "legion_hwmon", priv,
+ legion_hwmon_groups);
+ if (IS_ERR_OR_NULL(hwmon_dev)) {
+ pr_err("hwmon_device_register failed!\n");
+ return PTR_ERR(hwmon_dev);
+ }
+ dev_set_drvdata(hwmon_dev, priv);
+ priv->hwmon_dev = hwmon_dev;
+ return 0;
+}
+
+void legion_hwmon_exit(struct legion_private *priv)
+{
+ pr_info("Unloading legion hwon\n");
+ if (priv->hwmon_dev) {
+ hwmon_device_unregister(priv->hwmon_dev);
+ priv->hwmon_dev = NULL;
+ }
+ pr_info("Unloading legion hwon done\n");
+}
+
+/* ============================= */
+/* Platform driver */
+/* ============================ */
+
+int legion_add(struct platform_device *pdev)
+{
+ struct legion_private *priv;
+ const struct dmi_system_id *dmi_sys;
+ int err;
+ u16 ec_read_id;
+ bool is_denied = true;
+ bool is_allowed = false;
+ bool do_load_by_list = false;
+ bool do_load = false;
+ //struct legion_private *priv = dev_get_drvdata(&pdev->dev);
+ dev_info(&pdev->dev, "legion_laptop platform driver probing\n");
+
+ dev_info(&pdev->dev, "Read identifying information: DMI_SYS_VENDOR: %s; DMI_PRODUCT_NAME: %s; DMI_BIOS_VERSION:%s\n",
+ dmi_get_system_info(DMI_SYS_VENDOR),
+ dmi_get_system_info(DMI_PRODUCT_NAME),
+ dmi_get_system_info(DMI_BIOS_VERSION));
+
+ // TODO: allocate?
+ priv = &_priv;
+ priv->platform_device = pdev;
+ err = legion_shared_init(priv);
+ if (err) {
+ dev_info(&pdev->dev, "legion_laptop is forced to load.\n");
+ goto err_legion_shared_init;
+ }
+ dev_set_drvdata(&pdev->dev, priv);
+
+ // TODO: remove
+ pr_info("Read identifying information: DMI_SYS_VENDOR: %s; DMI_PRODUCT_NAME: %s; DMI_BIOS_VERSION:%s\n",
+ dmi_get_system_info(DMI_SYS_VENDOR),
+ dmi_get_system_info(DMI_PRODUCT_NAME),
+ dmi_get_system_info(DMI_BIOS_VERSION));
+
+ dmi_sys = dmi_first_match(optimistic_allowlist);
+ is_allowed = dmi_sys != NULL;
+ is_denied = dmi_check_system(denylist);
+ do_load_by_list = is_allowed && !is_denied;
+ do_load = do_load_by_list || force;
+
+ dev_info(
+ &pdev->dev,
+ "is_denied: %d; is_allowed: %d; do_load_by_list: %d; do_load: %d\n",
+ is_denied, is_allowed, do_load_by_list, do_load);
+
+ if (!(do_load)) {
+ dev_info(
+ &pdev->dev,
+ "Module not useable for this laptop because it is not in allowlist. Notify maintainer if you want to add your device or force load with param force.\n");
+ err = -ENOMEM;
+ goto err_model_mismtach;
+ }
+
+ if (force)
+ dev_info(&pdev->dev, "legion_laptop is forced to load.\n");
+
+ if (!do_load_by_list && do_load) {
+ dev_info(
+ &pdev->dev,
+ "legion_laptop is forced to load and would otherwise be not loaded\n");
+ }
+
+ // if forced and no module found, use config for first model
+ if (dmi_sys == NULL)
+ dmi_sys = &optimistic_allowlist[0];
+ dev_info(&pdev->dev, "Using configuration for system: %s\n",
+ dmi_sys->ident);
+
+ priv->conf = dmi_sys->driver_data;
+
+ err = ecram_init(&priv->ecram, priv->conf->memoryio_physical_ec_start,
+ priv->conf->memoryio_size);
+ if (err) {
+ dev_info(&pdev->dev,
+ "Could not init access to embedded controller\n");
+ goto err_ecram_init;
+ }
+
+ ec_read_id = read_ec_id(&priv->ecram, priv->conf);
+ dev_info(&pdev->dev, "Read embedded controller ID 0x%x\n", ec_read_id);
+ if (priv->conf->check_embedded_controller_id &&
+ !(ec_read_id == priv->conf->embedded_controller_id)) {
+ err = -ENOMEM;
+ dev_info(&pdev->dev, "Expected EC chip id 0x%x but read 0x%x\n",
+ priv->conf->embedded_controller_id, ec_read_id);
+ goto err_ecram_id;
+ }
+ if (!priv->conf->check_embedded_controller_id) {
+ dev_info(&pdev->dev,
+ "Skipped checking embedded controller id\n");
+ }
+
+ dev_info(&pdev->dev, "Creating debugfs inteface\n");
+ legion_debugfs_init(priv);
+
+ pr_info("Creating sysfs inteface\n");
+ err = legion_sysfs_init(priv);
+ if (err) {
+ dev_info(&pdev->dev, "Creating sysfs interface failed\n");
+ goto err_sysfs_init;
+ }
+
+ pr_info("Creating hwmon interface");
+ err = legion_hwmon_init(priv);
+ if (err)
+ goto err_hwmon_init;
+
+ pr_info("Creating platform profile support\n");
+ err = legion_platform_profile_init(priv);
+ if (err) {
+ dev_info(&pdev->dev, "Creating platform profile failed\n");
+ goto err_platform_profile;
+ }
+
+ pr_info("Init WMI driver support\n");
+ err = legion_wmi_init();
+ if (err) {
+ dev_info(&pdev->dev, "Init WMI driver failed\n");
+ goto err_wmi;
+ }
+
+ dev_info(&pdev->dev, "legion_laptop loaded for this device\n");
+ return 0;
+
+ // TODO: remove eventually
+ legion_wmi_exit();
+err_wmi:
+ legion_platform_profile_exit(priv);
+err_platform_profile:
+ legion_hwmon_exit(priv);
+err_hwmon_init:
+ legion_sysfs_exit(priv);
+err_sysfs_init:
+ legion_debugfs_exit(priv);
+err_ecram_id:
+ ecram_exit(&priv->ecram);
+err_ecram_init:
+ legion_shared_exit(priv);
+err_legion_shared_init:
+err_model_mismtach:
+ dev_info(&pdev->dev, "legion_laptop not loaded for this device\n");
+ return err;
+}
+
+int legion_remove(struct platform_device *pdev)
+{
+ struct legion_private *priv = dev_get_drvdata(&pdev->dev);
+
+ mutex_lock(&legion_shared_mutex);
+ priv->loaded = false;
+ mutex_unlock(&legion_shared_mutex);
+
+ // first unregister wmi, so toggling powermode does not
+ // generate events anymore that even might be delayed
+ legion_wmi_exit();
+ legion_platform_profile_exit(priv);
+
+ // toggle power mode to load default setting from embedded controller
+ // again
+ toggle_powermode(&priv->ecram, priv->conf);
+
+ legion_hwmon_exit(priv);
+ legion_sysfs_exit(priv);
+ legion_debugfs_exit(priv);
+ ecram_exit(&priv->ecram);
+ legion_shared_exit(priv);
+
+ pr_info("Legion platform unloaded\n");
+ return 0;
+}
+
+int legion_resume(struct platform_device *pdev)
+{
+ //struct legion_private *priv = dev_get_drvdata(&pdev->dev);
+ dev_info(&pdev->dev, "Resumed in legion-laptop\n");
+
+ return 0;
+}
+
+#ifdef CONFIG_PM_SLEEP
+static int legion_pm_resume(struct device *dev)
+{
+ //struct legion_private *priv = dev_get_drvdata(dev);
+ dev_info(dev, "Resumed PM in legion-laptop\n");
+
+ return 0;
+}
+#endif
+static SIMPLE_DEV_PM_OPS(legion_pm, NULL, legion_pm_resume);
+
+// same as ideapad
+static const struct acpi_device_id legion_device_ids[] = {
+ { "PNP0C09", 0 }, // todo: change to "VPC2004"
+ { "", 0 },
+};
+MODULE_DEVICE_TABLE(acpi, legion_device_ids);
+
+static struct platform_driver legion_driver = {
+ .probe = legion_add,
+ .remove = legion_remove,
+ .resume = legion_resume,
+ .driver = {
+ .name = "legion",
+ .pm = &legion_pm,
+ .acpi_match_table = ACPI_PTR(legion_device_ids),
+ },
+};
+
+int __init legion_init(void)
+{
+ int err;
+
+ pr_info("legion_laptop starts loading\n");
+ err = platform_driver_register(&legion_driver);
+ if (err) {
+ pr_info("legion_laptop: platform_driver_register failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+module_init(legion_init);
+
+void __exit legion_exit(void)
+{
+ platform_driver_unregister(&legion_driver);
+ pr_info("legion_laptop exit\n");
+}
+
+module_exit(legion_exit);
--
2.40.0
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