diff options
Diffstat (limited to 'drivers/platform/x86/dell')
-rw-r--r-- | drivers/platform/x86/dell/Kconfig | 33 | ||||
-rw-r--r-- | drivers/platform/x86/dell/Makefile | 45 | ||||
-rw-r--r-- | drivers/platform/x86/dell/alienware-wmi-base.c | 491 | ||||
-rw-r--r-- | drivers/platform/x86/dell/alienware-wmi-legacy.c | 95 | ||||
-rw-r--r-- | drivers/platform/x86/dell/alienware-wmi-wmax.c | 1667 | ||||
-rw-r--r-- | drivers/platform/x86/dell/alienware-wmi.c | 1249 | ||||
-rw-r--r-- | drivers/platform/x86/dell/alienware-wmi.h | 117 | ||||
-rw-r--r-- | drivers/platform/x86/dell/dell-pc.c | 67 | ||||
-rw-r--r-- | drivers/platform/x86/dell/dell-uart-backlight.c | 2 | ||||
-rw-r--r-- | drivers/platform/x86/dell/dell-wmi-ddv.c | 310 | ||||
-rw-r--r-- | drivers/platform/x86/dell/dell-wmi-sysman/Makefile | 2 | ||||
-rw-r--r-- | drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c | 2 |
12 files changed, 2712 insertions, 1368 deletions
diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/Kconfig index d09060aedd3f..738c108c2163 100644 --- a/drivers/platform/x86/dell/Kconfig +++ b/drivers/platform/x86/dell/Kconfig @@ -18,15 +18,36 @@ config ALIENWARE_WMI tristate "Alienware Special feature control" default m depends on ACPI + depends on ACPI_WMI + depends on DMI depends on LEDS_CLASS depends on NEW_LEDS - depends on ACPI_WMI + depends on HWMON + help + This is a driver for controlling Alienware WMI driven features. + + On legacy devices, it exposes an interface for controlling the AlienFX + zones on Alienware machines that don't contain a dedicated + AlienFX USB MCU such as the X51 and X51-R2. + + On newer devices, it exposes the AWCC thermal control interface through + known Kernel APIs. + +config ALIENWARE_WMI_LEGACY + bool "Alienware Legacy WMI device driver" + default y + depends on ALIENWARE_WMI + help + Legacy Alienware WMI driver with AlienFX LED control capabilities. + +config ALIENWARE_WMI_WMAX + bool "Alienware WMAX WMI device driver" + default y + depends on ALIENWARE_WMI select ACPI_PLATFORM_PROFILE help - This is a driver for controlling Alienware BIOS driven - features. It exposes an interface for controlling the AlienFX - zones on Alienware machines that don't contain a dedicated AlienFX - USB MCU such as the X51 and X51-R2. + Alienware WMI driver with AlienFX LED, HDMI, amplifier, deep sleep and + AWCC thermal control capabilities. config DCDBAS tristate "Dell Systems Management Base Driver" @@ -151,7 +172,7 @@ config DELL_SMBIOS_SMM config DELL_SMO8800 tristate "Dell Latitude freefall driver (ACPI SMO88XX)" - default m + default m if ACPI depends on I2C depends on ACPI || COMPILE_TEST help diff --git a/drivers/platform/x86/dell/Makefile b/drivers/platform/x86/dell/Makefile index bb3cbd470a46..c7501c25e627 100644 --- a/drivers/platform/x86/dell/Makefile +++ b/drivers/platform/x86/dell/Makefile @@ -4,24 +4,27 @@ # Dell x86 Platform-Specific Drivers # -obj-$(CONFIG_ALIENWARE_WMI) += alienware-wmi.o -obj-$(CONFIG_DCDBAS) += dcdbas.o -obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o -obj-$(CONFIG_DELL_RBTN) += dell-rbtn.o -obj-$(CONFIG_DELL_RBU) += dell_rbu.o -obj-$(CONFIG_DELL_PC) += dell-pc.o -obj-$(CONFIG_DELL_SMBIOS) += dell-smbios.o -dell-smbios-objs := dell-smbios-base.o -dell-smbios-$(CONFIG_DELL_SMBIOS_WMI) += dell-smbios-wmi.o -dell-smbios-$(CONFIG_DELL_SMBIOS_SMM) += dell-smbios-smm.o -obj-$(CONFIG_DELL_SMO8800) += dell-smo8800.o -obj-$(CONFIG_DELL_SMO8800) += dell-lis3lv02d.o -obj-$(CONFIG_DELL_UART_BACKLIGHT) += dell-uart-backlight.o -obj-$(CONFIG_DELL_WMI) += dell-wmi.o -dell-wmi-objs := dell-wmi-base.o -dell-wmi-$(CONFIG_DELL_WMI_PRIVACY) += dell-wmi-privacy.o -obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o -obj-$(CONFIG_DELL_WMI_DESCRIPTOR) += dell-wmi-descriptor.o -obj-$(CONFIG_DELL_WMI_DDV) += dell-wmi-ddv.o -obj-$(CONFIG_DELL_WMI_LED) += dell-wmi-led.o -obj-$(CONFIG_DELL_WMI_SYSMAN) += dell-wmi-sysman/ +obj-$(CONFIG_ALIENWARE_WMI) += alienware-wmi.o +alienware-wmi-y := alienware-wmi-base.o +alienware-wmi-$(CONFIG_ALIENWARE_WMI_LEGACY) += alienware-wmi-legacy.o +alienware-wmi-$(CONFIG_ALIENWARE_WMI_WMAX) += alienware-wmi-wmax.o +obj-$(CONFIG_DCDBAS) += dcdbas.o +obj-$(CONFIG_DELL_LAPTOP) += dell-laptop.o +obj-$(CONFIG_DELL_RBTN) += dell-rbtn.o +obj-$(CONFIG_DELL_RBU) += dell_rbu.o +obj-$(CONFIG_DELL_PC) += dell-pc.o +obj-$(CONFIG_DELL_SMBIOS) += dell-smbios.o +dell-smbios-y := dell-smbios-base.o +dell-smbios-$(CONFIG_DELL_SMBIOS_WMI) += dell-smbios-wmi.o +dell-smbios-$(CONFIG_DELL_SMBIOS_SMM) += dell-smbios-smm.o +obj-$(CONFIG_DELL_SMO8800) += dell-smo8800.o +obj-$(CONFIG_DELL_SMO8800) += dell-lis3lv02d.o +obj-$(CONFIG_DELL_UART_BACKLIGHT) += dell-uart-backlight.o +obj-$(CONFIG_DELL_WMI) += dell-wmi.o +dell-wmi-y := dell-wmi-base.o +dell-wmi-$(CONFIG_DELL_WMI_PRIVACY) += dell-wmi-privacy.o +obj-$(CONFIG_DELL_WMI_AIO) += dell-wmi-aio.o +obj-$(CONFIG_DELL_WMI_DESCRIPTOR) += dell-wmi-descriptor.o +obj-$(CONFIG_DELL_WMI_DDV) += dell-wmi-ddv.o +obj-$(CONFIG_DELL_WMI_LED) += dell-wmi-led.o +obj-$(CONFIG_DELL_WMI_SYSMAN) += dell-wmi-sysman/ diff --git a/drivers/platform/x86/dell/alienware-wmi-base.c b/drivers/platform/x86/dell/alienware-wmi-base.c new file mode 100644 index 000000000000..64562b92314f --- /dev/null +++ b/drivers/platform/x86/dell/alienware-wmi-base.c @@ -0,0 +1,491 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Alienware special feature control + * + * Copyright (C) 2014 Dell Inc <Dell.Client.Kernel@dell.com> + * Copyright (C) 2025 Kurt Borja <kuurtb@gmail.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/acpi.h> +#include <linux/cleanup.h> +#include <linux/module.h> +#include <linux/platform_device.h> +#include <linux/dmi.h> +#include <linux/leds.h> +#include "alienware-wmi.h" + +MODULE_AUTHOR("Mario Limonciello <mario.limonciello@outlook.com>"); +MODULE_AUTHOR("Kurt Borja <kuurtb@gmail.com>"); +MODULE_DESCRIPTION("Alienware special feature control"); +MODULE_LICENSE("GPL"); + +struct alienfx_quirks *alienfx; + +static struct alienfx_quirks quirk_inspiron5675 = { + .num_zones = 2, + .hdmi_mux = false, + .amplifier = false, + .deepslp = false, +}; + +static struct alienfx_quirks quirk_unknown = { + .num_zones = 2, + .hdmi_mux = false, + .amplifier = false, + .deepslp = false, +}; + +static struct alienfx_quirks quirk_x51_r1_r2 = { + .num_zones = 3, + .hdmi_mux = false, + .amplifier = false, + .deepslp = false, +}; + +static struct alienfx_quirks quirk_x51_r3 = { + .num_zones = 4, + .hdmi_mux = false, + .amplifier = true, + .deepslp = false, +}; + +static struct alienfx_quirks quirk_asm100 = { + .num_zones = 2, + .hdmi_mux = true, + .amplifier = false, + .deepslp = false, +}; + +static struct alienfx_quirks quirk_asm200 = { + .num_zones = 2, + .hdmi_mux = true, + .amplifier = false, + .deepslp = true, +}; + +static struct alienfx_quirks quirk_asm201 = { + .num_zones = 2, + .hdmi_mux = true, + .amplifier = true, + .deepslp = true, +}; + +static int __init dmi_matched(const struct dmi_system_id *dmi) +{ + alienfx = dmi->driver_data; + return 1; +} + +static const struct dmi_system_id alienware_quirks[] __initconst = { + { + .callback = dmi_matched, + .ident = "Alienware ASM100", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM100"), + }, + .driver_data = &quirk_asm100, + }, + { + .callback = dmi_matched, + .ident = "Alienware ASM200", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM200"), + }, + .driver_data = &quirk_asm200, + }, + { + .callback = dmi_matched, + .ident = "Alienware ASM201", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "ASM201"), + }, + .driver_data = &quirk_asm201, + }, + { + .callback = dmi_matched, + .ident = "Alienware X51 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), + }, + .driver_data = &quirk_x51_r1_r2, + }, + { + .callback = dmi_matched, + .ident = "Alienware X51 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), + }, + .driver_data = &quirk_x51_r1_r2, + }, + { + .callback = dmi_matched, + .ident = "Alienware X51 R3", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), + }, + .driver_data = &quirk_x51_r3, + }, + { + .callback = dmi_matched, + .ident = "Dell Inc. Inspiron 5675", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"), + }, + .driver_data = &quirk_inspiron5675, + }, + {} +}; + +u8 alienware_interface; + +int alienware_wmi_command(struct wmi_device *wdev, u32 method_id, + void *in_args, size_t in_size, u32 *out_data) +{ + struct acpi_buffer out = {ACPI_ALLOCATE_BUFFER, NULL}; + struct acpi_buffer in = {in_size, in_args}; + acpi_status ret; + + ret = wmidev_evaluate_method(wdev, 0, method_id, &in, out_data ? &out : NULL); + if (ACPI_FAILURE(ret)) + return -EIO; + + union acpi_object *obj __free(kfree) = out.pointer; + + if (out_data) { + if (obj && obj->type == ACPI_TYPE_INTEGER) + *out_data = (u32)obj->integer.value; + else + return -ENOMSG; + } + + return 0; +} + +/* + * Helpers used for zone control + */ +static int parse_rgb(const char *buf, struct color_platform *colors) +{ + long unsigned int rgb; + int ret; + union color_union { + struct color_platform cp; + int package; + } repackager; + + ret = kstrtoul(buf, 16, &rgb); + if (ret) + return ret; + + /* RGB triplet notation is 24-bit hexadecimal */ + if (rgb > 0xFFFFFF) + return -EINVAL; + + repackager.package = rgb & 0x0f0f0f0f; + pr_debug("alienware-wmi: r: %d g:%d b: %d\n", + repackager.cp.red, repackager.cp.green, repackager.cp.blue); + *colors = repackager.cp; + return 0; +} + +/* + * Individual RGB zone control + */ +static ssize_t zone_show(struct device *dev, struct device_attribute *attr, + char *buf, u8 location) +{ + struct alienfx_priv *priv = dev_get_drvdata(dev); + struct color_platform *colors = &priv->colors[location]; + + return sprintf(buf, "red: %d, green: %d, blue: %d\n", + colors->red, colors->green, colors->blue); + +} + +static ssize_t zone_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count, u8 location) +{ + struct alienfx_priv *priv = dev_get_drvdata(dev); + struct color_platform *colors = &priv->colors[location]; + struct alienfx_platdata *pdata = dev_get_platdata(dev); + int ret; + + ret = parse_rgb(buf, colors); + if (ret) + return ret; + + ret = pdata->ops.upd_led(priv, pdata->wdev, location); + + return ret ? ret : count; +} + +static ssize_t zone00_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return zone_show(dev, attr, buf, 0); +} + +static ssize_t zone00_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return zone_store(dev, attr, buf, count, 0); +} + +static DEVICE_ATTR_RW(zone00); + +static ssize_t zone01_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return zone_show(dev, attr, buf, 1); +} + +static ssize_t zone01_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return zone_store(dev, attr, buf, count, 1); +} + +static DEVICE_ATTR_RW(zone01); + +static ssize_t zone02_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return zone_show(dev, attr, buf, 2); +} + +static ssize_t zone02_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return zone_store(dev, attr, buf, count, 2); +} + +static DEVICE_ATTR_RW(zone02); + +static ssize_t zone03_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return zone_show(dev, attr, buf, 3); +} + +static ssize_t zone03_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + return zone_store(dev, attr, buf, count, 3); +} + +static DEVICE_ATTR_RW(zone03); + +/* + * Lighting control state device attribute (Global) + */ +static ssize_t lighting_control_state_show(struct device *dev, + struct device_attribute *attr, + char *buf) +{ + struct alienfx_priv *priv = dev_get_drvdata(dev); + + if (priv->lighting_control_state == LEGACY_BOOTING) + return sysfs_emit(buf, "[booting] running suspend\n"); + else if (priv->lighting_control_state == LEGACY_SUSPEND) + return sysfs_emit(buf, "booting running [suspend]\n"); + + return sysfs_emit(buf, "booting [running] suspend\n"); +} + +static ssize_t lighting_control_state_store(struct device *dev, + struct device_attribute *attr, + const char *buf, size_t count) +{ + struct alienfx_priv *priv = dev_get_drvdata(dev); + u8 val; + + if (strcmp(buf, "booting\n") == 0) + val = LEGACY_BOOTING; + else if (strcmp(buf, "suspend\n") == 0) + val = LEGACY_SUSPEND; + else if (alienware_interface == LEGACY) + val = LEGACY_RUNNING; + else + val = WMAX_RUNNING; + + priv->lighting_control_state = val; + pr_debug("alienware-wmi: updated control state to %d\n", + priv->lighting_control_state); + + return count; +} + +static DEVICE_ATTR_RW(lighting_control_state); + +static umode_t zone_attr_visible(struct kobject *kobj, + struct attribute *attr, int n) +{ + if (n < alienfx->num_zones + 1) + return attr->mode; + + return 0; +} + +static bool zone_group_visible(struct kobject *kobj) +{ + return alienfx->num_zones > 0; +} +DEFINE_SYSFS_GROUP_VISIBLE(zone); + +static struct attribute *zone_attrs[] = { + &dev_attr_lighting_control_state.attr, + &dev_attr_zone00.attr, + &dev_attr_zone01.attr, + &dev_attr_zone02.attr, + &dev_attr_zone03.attr, + NULL +}; + +static struct attribute_group zone_attribute_group = { + .name = "rgb_zones", + .is_visible = SYSFS_GROUP_VISIBLE(zone), + .attrs = zone_attrs, +}; + +/* + * LED Brightness (Global) + */ +static void global_led_set(struct led_classdev *led_cdev, + enum led_brightness brightness) +{ + struct alienfx_priv *priv = container_of(led_cdev, struct alienfx_priv, + global_led); + struct alienfx_platdata *pdata = dev_get_platdata(&priv->pdev->dev); + int ret; + + priv->global_brightness = brightness; + + ret = pdata->ops.upd_brightness(priv, pdata->wdev, brightness); + if (ret) + pr_err("LED brightness update failed\n"); +} + +static enum led_brightness global_led_get(struct led_classdev *led_cdev) +{ + struct alienfx_priv *priv = container_of(led_cdev, struct alienfx_priv, + global_led); + + return priv->global_brightness; +} + +/* + * Platform Driver + */ +static int alienfx_probe(struct platform_device *pdev) +{ + struct alienfx_priv *priv; + + priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + if (alienware_interface == WMAX) + priv->lighting_control_state = WMAX_RUNNING; + else + priv->lighting_control_state = LEGACY_RUNNING; + + priv->pdev = pdev; + priv->global_led.name = "alienware::global_brightness"; + priv->global_led.brightness_set = global_led_set; + priv->global_led.brightness_get = global_led_get; + priv->global_led.max_brightness = 0x0F; + priv->global_brightness = priv->global_led.max_brightness; + platform_set_drvdata(pdev, priv); + + return devm_led_classdev_register(&pdev->dev, &priv->global_led); +} + +static const struct attribute_group *alienfx_groups[] = { + &zone_attribute_group, + WMAX_DEV_GROUPS + NULL +}; + +static struct platform_driver platform_driver = { + .driver = { + .name = "alienware-wmi", + .dev_groups = alienfx_groups, + }, + .probe = alienfx_probe, +}; + +static void alienware_alienfx_remove(void *data) +{ + struct platform_device *pdev = data; + + platform_device_unregister(pdev); +} + +int alienware_alienfx_setup(struct alienfx_platdata *pdata) +{ + struct device *dev = &pdata->wdev->dev; + struct platform_device *pdev; + int ret; + + pdev = platform_device_register_data(NULL, "alienware-wmi", + PLATFORM_DEVID_NONE, pdata, + sizeof(*pdata)); + if (IS_ERR(pdev)) + return PTR_ERR(pdev); + + dev_set_drvdata(dev, pdev); + ret = devm_add_action_or_reset(dev, alienware_alienfx_remove, pdev); + if (ret) + return ret; + + return 0; +} + +static int __init alienware_wmi_init(void) +{ + int ret; + + dmi_check_system(alienware_quirks); + if (!alienfx) + alienfx = &quirk_unknown; + + ret = platform_driver_register(&platform_driver); + if (ret < 0) + return ret; + + if (wmi_has_guid(WMAX_CONTROL_GUID)) { + alienware_interface = WMAX; + ret = alienware_wmax_wmi_init(); + } else { + alienware_interface = LEGACY; + ret = alienware_legacy_wmi_init(); + } + + if (ret < 0) + platform_driver_unregister(&platform_driver); + + return ret; +} + +module_init(alienware_wmi_init); + +static void __exit alienware_wmi_exit(void) +{ + if (alienware_interface == WMAX) + alienware_wmax_wmi_exit(); + else + alienware_legacy_wmi_exit(); + + platform_driver_unregister(&platform_driver); +} + +module_exit(alienware_wmi_exit); diff --git a/drivers/platform/x86/dell/alienware-wmi-legacy.c b/drivers/platform/x86/dell/alienware-wmi-legacy.c new file mode 100644 index 000000000000..4a84a2fe918b --- /dev/null +++ b/drivers/platform/x86/dell/alienware-wmi-legacy.c @@ -0,0 +1,95 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Alienware LEGACY WMI device driver + * + * Copyright (C) 2025 Kurt Borja <kuurtb@gmail.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/wmi.h> +#include "alienware-wmi.h" + +struct legacy_led_args { + struct color_platform colors; + u8 brightness; + u8 state; +} __packed; + + +/* + * Legacy WMI driver + */ +static int legacy_wmi_update_led(struct alienfx_priv *priv, + struct wmi_device *wdev, u8 location) +{ + struct legacy_led_args legacy_args = { + .colors = priv->colors[location], + .brightness = priv->global_brightness, + .state = 0, + }; + struct acpi_buffer input; + acpi_status status; + + if (legacy_args.state != LEGACY_RUNNING) { + legacy_args.state = priv->lighting_control_state; + + input.length = sizeof(legacy_args); + input.pointer = &legacy_args; + + status = wmi_evaluate_method(LEGACY_POWER_CONTROL_GUID, 0, + location + 1, &input, NULL); + if (ACPI_FAILURE(status)) + return -EIO; + + return 0; + } + + return alienware_wmi_command(wdev, location + 1, &legacy_args, + sizeof(legacy_args), NULL); +} + +static int legacy_wmi_update_brightness(struct alienfx_priv *priv, + struct wmi_device *wdev, u8 brightness) +{ + return legacy_wmi_update_led(priv, wdev, 0); +} + +static int legacy_wmi_probe(struct wmi_device *wdev, const void *context) +{ + struct alienfx_platdata pdata = { + .wdev = wdev, + .ops = { + .upd_led = legacy_wmi_update_led, + .upd_brightness = legacy_wmi_update_brightness, + }, + }; + + return alienware_alienfx_setup(&pdata); +} + +static const struct wmi_device_id alienware_legacy_device_id_table[] = { + { LEGACY_CONTROL_GUID, NULL }, + { }, +}; +MODULE_DEVICE_TABLE(wmi, alienware_legacy_device_id_table); + +static struct wmi_driver alienware_legacy_wmi_driver = { + .driver = { + .name = "alienware-wmi-alienfx", + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + }, + .id_table = alienware_legacy_device_id_table, + .probe = legacy_wmi_probe, + .no_singleton = true, +}; + +int __init alienware_legacy_wmi_init(void) +{ + return wmi_driver_register(&alienware_legacy_wmi_driver); +} + +void __exit alienware_legacy_wmi_exit(void) +{ + wmi_driver_unregister(&alienware_legacy_wmi_driver); +} diff --git a/drivers/platform/x86/dell/alienware-wmi-wmax.c b/drivers/platform/x86/dell/alienware-wmi-wmax.c new file mode 100644 index 000000000000..c42f9228b0b2 --- /dev/null +++ b/drivers/platform/x86/dell/alienware-wmi-wmax.c @@ -0,0 +1,1667 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Alienware WMAX WMI device driver + * + * Copyright (C) 2014 Dell Inc <Dell.Client.Kernel@dell.com> + * Copyright (C) 2025 Kurt Borja <kuurtb@gmail.com> + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/array_size.h> +#include <linux/bitfield.h> +#include <linux/bitmap.h> +#include <linux/bits.h> +#include <linux/debugfs.h> +#include <linux/dmi.h> +#include <linux/hwmon.h> +#include <linux/hwmon-sysfs.h> +#include <linux/kstrtox.h> +#include <linux/minmax.h> +#include <linux/moduleparam.h> +#include <linux/platform_profile.h> +#include <linux/pm.h> +#include <linux/seq_file.h> +#include <linux/units.h> +#include <linux/wmi.h> +#include "alienware-wmi.h" + +#define WMAX_METHOD_HDMI_SOURCE 0x1 +#define WMAX_METHOD_HDMI_STATUS 0x2 +#define WMAX_METHOD_HDMI_CABLE 0x5 +#define WMAX_METHOD_AMPLIFIER_CABLE 0x6 +#define WMAX_METHOD_DEEP_SLEEP_CONTROL 0x0B +#define WMAX_METHOD_DEEP_SLEEP_STATUS 0x0C +#define WMAX_METHOD_BRIGHTNESS 0x3 +#define WMAX_METHOD_ZONE_CONTROL 0x4 + +#define AWCC_METHOD_GET_FAN_SENSORS 0x13 +#define AWCC_METHOD_THERMAL_INFORMATION 0x14 +#define AWCC_METHOD_THERMAL_CONTROL 0x15 +#define AWCC_METHOD_FWUP_GPIO_CONTROL 0x20 +#define AWCC_METHOD_READ_TOTAL_GPIOS 0x21 +#define AWCC_METHOD_READ_GPIO_STATUS 0x22 +#define AWCC_METHOD_GAME_SHIFT_STATUS 0x25 + +#define AWCC_FAILURE_CODE 0xFFFFFFFF +#define AWCC_FAILURE_CODE_2 0xFFFFFFFE + +#define AWCC_SENSOR_ID_FLAG BIT(8) +#define AWCC_THERMAL_MODE_MASK GENMASK(3, 0) +#define AWCC_THERMAL_TABLE_MASK GENMASK(7, 4) +#define AWCC_RESOURCE_ID_MASK GENMASK(7, 0) + +/* Arbitrary limit based on supported models */ +#define AWCC_MAX_RES_COUNT 16 +#define AWCC_ID_BITMAP_SIZE (U8_MAX + 1) +#define AWCC_ID_BITMAP_LONGS BITS_TO_LONGS(AWCC_ID_BITMAP_SIZE) + +static bool force_hwmon; +module_param_unsafe(force_hwmon, bool, 0); +MODULE_PARM_DESC(force_hwmon, "Force probing for HWMON support without checking if the WMI backend is available"); + +static bool force_platform_profile; +module_param_unsafe(force_platform_profile, bool, 0); +MODULE_PARM_DESC(force_platform_profile, "Forces auto-detecting thermal profiles without checking if WMI thermal backend is available"); + +static bool force_gmode; +module_param_unsafe(force_gmode, bool, 0); +MODULE_PARM_DESC(force_gmode, "Forces G-Mode when performance profile is selected"); + +struct awcc_quirks { + bool hwmon; + bool pprof; + bool gmode; +}; + +static struct awcc_quirks g_series_quirks = { + .hwmon = true, + .pprof = true, + .gmode = true, +}; + +static struct awcc_quirks generic_quirks = { + .hwmon = true, + .pprof = true, + .gmode = false, +}; + +static struct awcc_quirks empty_quirks; + +static const struct dmi_system_id awcc_dmi_table[] __initconst = { + { + .ident = "Alienware Area-51m R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware Area-51m R2"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware m15 R7", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m15 R7"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware m16 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m16 R1"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Alienware m16 R1 AMD", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m16 R1 AMD"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Alienware m16 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m16 R2"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware m17 R5", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware m18 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m18 R2"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware x15 R1", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x15 R1"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware x15 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x15 R2"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Alienware x17 R2", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x17 R2"), + }, + .driver_data = &generic_quirks, + }, + { + .ident = "Dell Inc. G15 5510", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5510"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G15 5511", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5511"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G15 5515", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G16 7630", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "Dell G16 7630"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G3 3500", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G3 3500"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G3 3590", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G3 3590"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G5 5500", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G5 5500"), + }, + .driver_data = &g_series_quirks, + }, + { + .ident = "Dell Inc. G5 5505", + .matches = { + DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), + DMI_MATCH(DMI_PRODUCT_NAME, "G5 5505"), + }, + .driver_data = &g_series_quirks, + }, +}; + +enum AWCC_GET_FAN_SENSORS_OPERATIONS { + AWCC_OP_GET_TOTAL_FAN_TEMPS = 0x01, + AWCC_OP_GET_FAN_TEMP_ID = 0x02, +}; + +enum AWCC_THERMAL_INFORMATION_OPERATIONS { + AWCC_OP_GET_SYSTEM_DESCRIPTION = 0x02, + AWCC_OP_GET_RESOURCE_ID = 0x03, + AWCC_OP_GET_TEMPERATURE = 0x04, + AWCC_OP_GET_FAN_RPM = 0x05, + AWCC_OP_GET_FAN_MIN_RPM = 0x08, + AWCC_OP_GET_FAN_MAX_RPM = 0x09, + AWCC_OP_GET_CURRENT_PROFILE = 0x0B, + AWCC_OP_GET_FAN_BOOST = 0x0C, +}; + +enum AWCC_THERMAL_CONTROL_OPERATIONS { + AWCC_OP_ACTIVATE_PROFILE = 0x01, + AWCC_OP_SET_FAN_BOOST = 0x02, +}; + +enum AWCC_GAME_SHIFT_STATUS_OPERATIONS { + AWCC_OP_TOGGLE_GAME_SHIFT = 0x01, + AWCC_OP_GET_GAME_SHIFT_STATUS = 0x02, +}; + +enum AWCC_THERMAL_TABLES { + AWCC_THERMAL_TABLE_LEGACY = 0x9, + AWCC_THERMAL_TABLE_USTT = 0xA, +}; + +enum AWCC_SPECIAL_THERMAL_CODES { + AWCC_SPECIAL_PROFILE_CUSTOM = 0x00, + AWCC_SPECIAL_PROFILE_GMODE = 0xAB, +}; + +enum AWCC_TEMP_SENSOR_TYPES { + AWCC_TEMP_SENSOR_CPU = 0x01, + AWCC_TEMP_SENSOR_GPU = 0x06, +}; + +enum awcc_thermal_profile { + AWCC_PROFILE_USTT_BALANCED, + AWCC_PROFILE_USTT_BALANCED_PERFORMANCE, + AWCC_PROFILE_USTT_COOL, + AWCC_PROFILE_USTT_QUIET, + AWCC_PROFILE_USTT_PERFORMANCE, + AWCC_PROFILE_USTT_LOW_POWER, + AWCC_PROFILE_LEGACY_QUIET, + AWCC_PROFILE_LEGACY_BALANCED, + AWCC_PROFILE_LEGACY_BALANCED_PERFORMANCE, + AWCC_PROFILE_LEGACY_PERFORMANCE, + AWCC_PROFILE_LAST, +}; + +struct wmax_led_args { + u32 led_mask; + struct color_platform colors; + u8 state; +} __packed; + +struct wmax_brightness_args { + u32 led_mask; + u32 percentage; +}; + +struct wmax_basic_args { + u8 arg; +}; + +struct wmax_u32_args { + u8 operation; + u8 arg1; + u8 arg2; + u8 arg3; +}; + +struct awcc_fan_data { + unsigned long auto_channels_temp; + const char *label; + u32 min_rpm; + u32 max_rpm; + u8 suspend_cache; + u8 id; +}; + +struct awcc_priv { + struct wmi_device *wdev; + union { + u32 system_description; + struct { + u8 fan_count; + u8 temp_count; + u8 unknown_count; + u8 profile_count; + }; + u8 res_count[4]; + }; + + struct device *ppdev; + u8 supported_profiles[PLATFORM_PROFILE_LAST]; + + struct device *hwdev; + struct awcc_fan_data **fan_data; + unsigned long temp_sensors[AWCC_ID_BITMAP_LONGS]; + + u32 gpio_count; +}; + +static const enum platform_profile_option awcc_mode_to_platform_profile[AWCC_PROFILE_LAST] = { + [AWCC_PROFILE_USTT_BALANCED] = PLATFORM_PROFILE_BALANCED, + [AWCC_PROFILE_USTT_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, + [AWCC_PROFILE_USTT_COOL] = PLATFORM_PROFILE_COOL, + [AWCC_PROFILE_USTT_QUIET] = PLATFORM_PROFILE_QUIET, + [AWCC_PROFILE_USTT_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, + [AWCC_PROFILE_USTT_LOW_POWER] = PLATFORM_PROFILE_LOW_POWER, + [AWCC_PROFILE_LEGACY_QUIET] = PLATFORM_PROFILE_QUIET, + [AWCC_PROFILE_LEGACY_BALANCED] = PLATFORM_PROFILE_BALANCED, + [AWCC_PROFILE_LEGACY_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, + [AWCC_PROFILE_LEGACY_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, +}; + +static struct awcc_quirks *awcc; + +/* + * The HDMI mux sysfs node indicates the status of the HDMI input mux. + * It can toggle between standard system GPU output and HDMI input. + */ +static ssize_t cable_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct alienfx_platdata *pdata = dev_get_platdata(dev); + struct wmax_basic_args in_args = { + .arg = 0, + }; + u32 out_data; + int ret; + + ret = alienware_wmi_command(pdata->wdev, WMAX_METHOD_HDMI_CABLE, + &in_args, sizeof(in_args), &out_data); + if (!ret) { + if (out_data == 0) + return sysfs_emit(buf, "[unconnected] connected unknown\n"); + else if (out_data == 1) + return sysfs_emit(buf, "unconnected [connected] unknown\n"); + } + + pr_err("alienware-wmi: unknown HDMI cable status: %d\n", ret); + return sysfs_emit(buf, "unconnected connected [unknown]\n"); +} + +static ssize_t source_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct alienfx_platdata *pdata = dev_get_platdata(dev); + struct wmax_basic_args in_args = { + .arg = 0, + }; + u32 out_data; + int ret; + + ret = alienware_wmi_command(pdata->wdev, WMAX_METHOD_HDMI_STATUS, + &in_args, sizeof(in_args), &out_data); + if (!ret) { + if (out_data == 1) + return sysfs_emit(buf, "[input] gpu unknown\n"); + else if (out_data == 2) + return sysfs_emit(buf, "input [gpu] unknown\n"); + } + + pr_err("alienware-wmi: unknown HDMI source status: %u\n", ret); + return sysfs_emit(buf, "input gpu [unknown]\n"); +} + +static ssize_t source_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct alienfx_platdata *pdata = dev_get_platdata(dev); + struct wmax_basic_args args; + int ret; + + if (strcmp(buf, "gpu\n") == 0) + args.arg = 1; + else if (strcmp(buf, "input\n") == 0) + args.arg = 2; + else + args.arg = 3; + pr_debug("alienware-wmi: setting hdmi to %d : %s", args.arg, buf); + + ret = alienware_wmi_command(pdata->wdev, WMAX_METHOD_HDMI_SOURCE, &args, + sizeof(args), NULL); + if (ret < 0) + pr_err("alienware-wmi: HDMI toggle failed: results: %u\n", ret); + + return count; +} + +static DEVICE_ATTR_RO(cable); +static DEVICE_ATTR_RW(source); + +static bool hdmi_group_visible(struct kobject *kobj) +{ + return alienware_interface == WMAX && alienfx->hdmi_mux; +} +DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(hdmi); + +static struct attribute *hdmi_attrs[] = { + &dev_attr_cable.attr, + &dev_attr_source.attr, + NULL, +}; + +const struct attribute_group wmax_hdmi_attribute_group = { + .name = "hdmi", + .is_visible = SYSFS_GROUP_VISIBLE(hdmi), + .attrs = hdmi_attrs, +}; + +/* + * Alienware GFX amplifier support + * - Currently supports reading cable status + * - Leaving expansion room to possibly support dock/undock events later + */ +static ssize_t status_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct alienfx_platdata *pdata = dev_get_platdata(dev); + struct wmax_basic_args in_args = { + .arg = 0, + }; + u32 out_data; + int ret; + + ret = alienware_wmi_command(pdata->wdev, WMAX_METHOD_AMPLIFIER_CABLE, + &in_args, sizeof(in_args), &out_data); + if (!ret) { + if (out_data == 0) + return sysfs_emit(buf, "[unconnected] connected unknown\n"); + else if (out_data == 1) + return sysfs_emit(buf, "unconnected [connected] unknown\n"); + } + + pr_err("alienware-wmi: unknown amplifier cable status: %d\n", ret); + return sysfs_emit(buf, "unconnected connected [unknown]\n"); +} + +static DEVICE_ATTR_RO(status); + +static bool amplifier_group_visible(struct kobject *kobj) +{ + return alienware_interface == WMAX && alienfx->amplifier; +} +DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(amplifier); + +static struct attribute *amplifier_attrs[] = { + &dev_attr_status.attr, + NULL, +}; + +const struct attribute_group wmax_amplifier_attribute_group = { + .name = "amplifier", + .is_visible = SYSFS_GROUP_VISIBLE(amplifier), + .attrs = amplifier_attrs, +}; + +/* + * Deep Sleep Control support + * - Modifies BIOS setting for deep sleep control allowing extra wakeup events + */ +static ssize_t deepsleep_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct alienfx_platdata *pdata = dev_get_platdata(dev); + struct wmax_basic_args in_args = { + .arg = 0, + }; + u32 out_data; + int ret; + + ret = alienware_wmi_command(pdata->wdev, WMAX_METHOD_DEEP_SLEEP_STATUS, + &in_args, sizeof(in_args), &out_data); + if (!ret) { + if (out_data == 0) + return sysfs_emit(buf, "[disabled] s5 s5_s4\n"); + else if (out_data == 1) + return sysfs_emit(buf, "disabled [s5] s5_s4\n"); + else if (out_data == 2) + return sysfs_emit(buf, "disabled s5 [s5_s4]\n"); + } + + pr_err("alienware-wmi: unknown deep sleep status: %d\n", ret); + return sysfs_emit(buf, "disabled s5 s5_s4 [unknown]\n"); +} + +static ssize_t deepsleep_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct alienfx_platdata *pdata = dev_get_platdata(dev); + struct wmax_basic_args args; + int ret; + + if (strcmp(buf, "disabled\n") == 0) + args.arg = 0; + else if (strcmp(buf, "s5\n") == 0) + args.arg = 1; + else + args.arg = 2; + pr_debug("alienware-wmi: setting deep sleep to %d : %s", args.arg, buf); + + ret = alienware_wmi_command(pdata->wdev, WMAX_METHOD_DEEP_SLEEP_CONTROL, + &args, sizeof(args), NULL); + if (!ret) + pr_err("alienware-wmi: deep sleep control failed: results: %u\n", ret); + + return count; +} + +static DEVICE_ATTR_RW(deepsleep); + +static bool deepsleep_group_visible(struct kobject *kobj) +{ + return alienware_interface == WMAX && alienfx->deepslp; +} +DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(deepsleep); + +static struct attribute *deepsleep_attrs[] = { + &dev_attr_deepsleep.attr, + NULL, +}; + +const struct attribute_group wmax_deepsleep_attribute_group = { + .name = "deepsleep", + .is_visible = SYSFS_GROUP_VISIBLE(deepsleep), + .attrs = deepsleep_attrs, +}; + +/* + * AWCC Helpers + */ +static bool is_awcc_thermal_profile_id(u8 code) +{ + u8 table = FIELD_GET(AWCC_THERMAL_TABLE_MASK, code); + u8 mode = FIELD_GET(AWCC_THERMAL_MODE_MASK, code); + + if (mode >= AWCC_PROFILE_LAST) + return false; + + if (table == AWCC_THERMAL_TABLE_LEGACY && mode >= AWCC_PROFILE_LEGACY_QUIET) + return true; + + if (table == AWCC_THERMAL_TABLE_USTT && mode <= AWCC_PROFILE_USTT_LOW_POWER) + return true; + + return false; +} + +static int awcc_wmi_command(struct wmi_device *wdev, u32 method_id, + struct wmax_u32_args *args, u32 *out) +{ + int ret; + + ret = alienware_wmi_command(wdev, method_id, args, sizeof(*args), out); + if (ret) + return ret; + + if (*out == AWCC_FAILURE_CODE || *out == AWCC_FAILURE_CODE_2) + return -EBADRQC; + + return 0; +} + +static int awcc_get_fan_sensors(struct wmi_device *wdev, u8 operation, + u8 fan_id, u8 index, u32 *out) +{ + struct wmax_u32_args args = { + .operation = operation, + .arg1 = fan_id, + .arg2 = index, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_GET_FAN_SENSORS, &args, out); +} + +static int awcc_thermal_information(struct wmi_device *wdev, u8 operation, u8 arg, + u32 *out) +{ + struct wmax_u32_args args = { + .operation = operation, + .arg1 = arg, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_INFORMATION, &args, out); +} + +static int awcc_fwup_gpio_control(struct wmi_device *wdev, u8 pin, u8 status) +{ + struct wmax_u32_args args = { + .operation = pin, + .arg1 = status, + .arg2 = 0, + .arg3 = 0, + }; + u32 out; + + return awcc_wmi_command(wdev, AWCC_METHOD_FWUP_GPIO_CONTROL, &args, &out); +} + +static int awcc_read_total_gpios(struct wmi_device *wdev, u32 *count) +{ + struct wmax_u32_args args = {}; + + return awcc_wmi_command(wdev, AWCC_METHOD_READ_TOTAL_GPIOS, &args, count); +} + +static int awcc_read_gpio_status(struct wmi_device *wdev, u8 pin, u32 *status) +{ + struct wmax_u32_args args = { + .operation = pin, + .arg1 = 0, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_READ_GPIO_STATUS, &args, status); +} + +static int awcc_game_shift_status(struct wmi_device *wdev, u8 operation, + u32 *out) +{ + struct wmax_u32_args args = { + .operation = operation, + .arg1 = 0, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_GAME_SHIFT_STATUS, &args, out); +} + +/** + * awcc_op_get_resource_id - Get the resource ID at a given index + * @wdev: AWCC WMI device + * @index: Index + * @out: Value returned by the WMI call + * + * Get the resource ID at a given @index. Resource IDs are listed in the + * following order: + * + * - Fan IDs + * - Sensor IDs + * - Unknown IDs + * - Thermal Profile IDs + * + * The total number of IDs of a given type can be obtained with + * AWCC_OP_GET_SYSTEM_DESCRIPTION. + * + * Return: 0 on success, -errno on failure + */ +static int awcc_op_get_resource_id(struct wmi_device *wdev, u8 index, u8 *out) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_GET_RESOURCE_ID, + .arg1 = index, + .arg2 = 0, + .arg3 = 0, + }; + u32 out_data; + int ret; + + ret = awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_INFORMATION, &args, &out_data); + if (ret) + return ret; + + *out = FIELD_GET(AWCC_RESOURCE_ID_MASK, out_data); + + return 0; +} + +static int awcc_op_get_fan_rpm(struct wmi_device *wdev, u8 fan_id, u32 *out) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_GET_FAN_RPM, + .arg1 = fan_id, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_INFORMATION, &args, out); +} + +static int awcc_op_get_temperature(struct wmi_device *wdev, u8 temp_id, u32 *out) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_GET_TEMPERATURE, + .arg1 = temp_id, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_INFORMATION, &args, out); +} + +static int awcc_op_get_fan_boost(struct wmi_device *wdev, u8 fan_id, u32 *out) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_GET_FAN_BOOST, + .arg1 = fan_id, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_INFORMATION, &args, out); +} + +static int awcc_op_get_current_profile(struct wmi_device *wdev, u32 *out) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_GET_CURRENT_PROFILE, + .arg1 = 0, + .arg2 = 0, + .arg3 = 0, + }; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_INFORMATION, &args, out); +} + +static int awcc_op_activate_profile(struct wmi_device *wdev, u8 profile) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_ACTIVATE_PROFILE, + .arg1 = profile, + .arg2 = 0, + .arg3 = 0, + }; + u32 out; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_CONTROL, &args, &out); +} + +static int awcc_op_set_fan_boost(struct wmi_device *wdev, u8 fan_id, u8 boost) +{ + struct wmax_u32_args args = { + .operation = AWCC_OP_SET_FAN_BOOST, + .arg1 = fan_id, + .arg2 = boost, + .arg3 = 0, + }; + u32 out; + + return awcc_wmi_command(wdev, AWCC_METHOD_THERMAL_CONTROL, &args, &out); +} + +/* + * HWMON + * - Provides temperature and fan speed monitoring as well as manual fan + * control + */ +static umode_t awcc_hwmon_is_visible(const void *drvdata, enum hwmon_sensor_types type, + u32 attr, int channel) +{ + const struct awcc_priv *priv = drvdata; + unsigned int temp_count; + + switch (type) { + case hwmon_temp: + temp_count = bitmap_weight(priv->temp_sensors, AWCC_ID_BITMAP_SIZE); + + return channel < temp_count ? 0444 : 0; + case hwmon_fan: + return channel < priv->fan_count ? 0444 : 0; + case hwmon_pwm: + return channel < priv->fan_count ? 0444 : 0; + default: + return 0; + } +} + +static int awcc_hwmon_read(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, long *val) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + const struct awcc_fan_data *fan; + u32 state; + int ret; + u8 temp; + + switch (type) { + case hwmon_temp: + temp = find_nth_bit(priv->temp_sensors, AWCC_ID_BITMAP_SIZE, channel); + + switch (attr) { + case hwmon_temp_input: + ret = awcc_op_get_temperature(priv->wdev, temp, &state); + if (ret) + return ret; + + *val = state * MILLIDEGREE_PER_DEGREE; + break; + default: + return -EOPNOTSUPP; + } + + break; + case hwmon_fan: + fan = priv->fan_data[channel]; + + switch (attr) { + case hwmon_fan_input: + ret = awcc_op_get_fan_rpm(priv->wdev, fan->id, &state); + if (ret) + return ret; + + *val = state; + break; + case hwmon_fan_min: + *val = fan->min_rpm; + break; + case hwmon_fan_max: + *val = fan->max_rpm; + break; + default: + return -EOPNOTSUPP; + } + + break; + case hwmon_pwm: + fan = priv->fan_data[channel]; + + switch (attr) { + case hwmon_pwm_auto_channels_temp: + *val = fan->auto_channels_temp; + break; + default: + return -EOPNOTSUPP; + } + + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static int awcc_hwmon_read_string(struct device *dev, enum hwmon_sensor_types type, + u32 attr, int channel, const char **str) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + u8 temp; + + switch (type) { + case hwmon_temp: + temp = find_nth_bit(priv->temp_sensors, AWCC_ID_BITMAP_SIZE, channel); + + switch (temp) { + case AWCC_TEMP_SENSOR_CPU: + *str = "CPU"; + break; + case AWCC_TEMP_SENSOR_GPU: + *str = "GPU"; + break; + default: + *str = "Unknown"; + break; + } + + break; + case hwmon_fan: + *str = priv->fan_data[channel]->label; + break; + default: + return -EOPNOTSUPP; + } + + return 0; +} + +static const struct hwmon_ops awcc_hwmon_ops = { + .is_visible = awcc_hwmon_is_visible, + .read = awcc_hwmon_read, + .read_string = awcc_hwmon_read_string, +}; + +static const struct hwmon_channel_info * const awcc_hwmon_info[] = { + HWMON_CHANNEL_INFO(temp, + HWMON_T_LABEL | HWMON_T_INPUT, + HWMON_T_LABEL | HWMON_T_INPUT, + HWMON_T_LABEL | HWMON_T_INPUT, + HWMON_T_LABEL | HWMON_T_INPUT, + HWMON_T_LABEL | HWMON_T_INPUT, + HWMON_T_LABEL | HWMON_T_INPUT + ), + HWMON_CHANNEL_INFO(fan, + HWMON_F_LABEL | HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX, + HWMON_F_LABEL | HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX, + HWMON_F_LABEL | HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX, + HWMON_F_LABEL | HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX, + HWMON_F_LABEL | HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX, + HWMON_F_LABEL | HWMON_F_INPUT | HWMON_F_MIN | HWMON_F_MAX + ), + HWMON_CHANNEL_INFO(pwm, + HWMON_PWM_AUTO_CHANNELS_TEMP, + HWMON_PWM_AUTO_CHANNELS_TEMP, + HWMON_PWM_AUTO_CHANNELS_TEMP, + HWMON_PWM_AUTO_CHANNELS_TEMP, + HWMON_PWM_AUTO_CHANNELS_TEMP, + HWMON_PWM_AUTO_CHANNELS_TEMP + ), + NULL +}; + +static const struct hwmon_chip_info awcc_hwmon_chip_info = { + .ops = &awcc_hwmon_ops, + .info = awcc_hwmon_info, +}; + +static ssize_t fan_boost_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(attr)->index; + struct awcc_fan_data *fan = priv->fan_data[index]; + u32 boost; + int ret; + + ret = awcc_op_get_fan_boost(priv->wdev, fan->id, &boost); + if (ret) + return ret; + + return sysfs_emit(buf, "%u\n", boost); +} + +static ssize_t fan_boost_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + int index = to_sensor_dev_attr(attr)->index; + struct awcc_fan_data *fan = priv->fan_data[index]; + unsigned long val; + int ret; + + ret = kstrtoul(buf, 0, &val); + if (ret) + return ret; + + ret = awcc_op_set_fan_boost(priv->wdev, fan->id, clamp_val(val, 0, 255)); + + return ret ? ret : count; +} + +static SENSOR_DEVICE_ATTR_RW(fan1_boost, fan_boost, 0); +static SENSOR_DEVICE_ATTR_RW(fan2_boost, fan_boost, 1); +static SENSOR_DEVICE_ATTR_RW(fan3_boost, fan_boost, 2); +static SENSOR_DEVICE_ATTR_RW(fan4_boost, fan_boost, 3); +static SENSOR_DEVICE_ATTR_RW(fan5_boost, fan_boost, 4); +static SENSOR_DEVICE_ATTR_RW(fan6_boost, fan_boost, 5); + +static umode_t fan_boost_attr_visible(struct kobject *kobj, struct attribute *attr, int n) +{ + struct awcc_priv *priv = dev_get_drvdata(kobj_to_dev(kobj)); + + return n < priv->fan_count ? attr->mode : 0; +} + +static bool fan_boost_group_visible(struct kobject *kobj) +{ + return true; +} + +DEFINE_SYSFS_GROUP_VISIBLE(fan_boost); + +static struct attribute *fan_boost_attrs[] = { + &sensor_dev_attr_fan1_boost.dev_attr.attr, + &sensor_dev_attr_fan2_boost.dev_attr.attr, + &sensor_dev_attr_fan3_boost.dev_attr.attr, + &sensor_dev_attr_fan4_boost.dev_attr.attr, + &sensor_dev_attr_fan5_boost.dev_attr.attr, + &sensor_dev_attr_fan6_boost.dev_attr.attr, + NULL +}; + +static const struct attribute_group fan_boost_group = { + .attrs = fan_boost_attrs, + .is_visible = SYSFS_GROUP_VISIBLE(fan_boost), +}; + +static const struct attribute_group *awcc_hwmon_groups[] = { + &fan_boost_group, + NULL +}; + +static int awcc_hwmon_temps_init(struct wmi_device *wdev) +{ + struct awcc_priv *priv = dev_get_drvdata(&wdev->dev); + unsigned int i; + int ret; + u8 id; + + for (i = 0; i < priv->temp_count; i++) { + /* + * Temperature sensors IDs are listed after the fan IDs at + * offset `fan_count` + */ + ret = awcc_op_get_resource_id(wdev, i + priv->fan_count, &id); + if (ret) + return ret; + + __set_bit(id, priv->temp_sensors); + } + + return 0; +} + +static char *awcc_get_fan_label(unsigned long *fan_temps) +{ + unsigned int temp_count = bitmap_weight(fan_temps, AWCC_ID_BITMAP_SIZE); + char *label; + u8 temp_id; + + switch (temp_count) { + case 0: + label = "Independent Fan"; + break; + case 1: + temp_id = find_first_bit(fan_temps, AWCC_ID_BITMAP_SIZE); + + switch (temp_id) { + case AWCC_TEMP_SENSOR_CPU: + label = "Processor Fan"; + break; + case AWCC_TEMP_SENSOR_GPU: + label = "Video Fan"; + break; + default: + label = "Unknown Fan"; + break; + } + + break; + default: + label = "Shared Fan"; + break; + } + + return label; +} + +static int awcc_hwmon_fans_init(struct wmi_device *wdev) +{ + struct awcc_priv *priv = dev_get_drvdata(&wdev->dev); + unsigned long fan_temps[AWCC_ID_BITMAP_LONGS]; + unsigned long gather[AWCC_ID_BITMAP_LONGS]; + u32 min_rpm, max_rpm, temp_count, temp_id; + struct awcc_fan_data *fan_data; + unsigned int i, j; + int ret; + u8 id; + + for (i = 0; i < priv->fan_count; i++) { + fan_data = devm_kzalloc(&wdev->dev, sizeof(*fan_data), GFP_KERNEL); + if (!fan_data) + return -ENOMEM; + + /* + * Fan IDs are listed first at offset 0 + */ + ret = awcc_op_get_resource_id(wdev, i, &id); + if (ret) + return ret; + + ret = awcc_thermal_information(wdev, AWCC_OP_GET_FAN_MIN_RPM, id, + &min_rpm); + if (ret) + return ret; + + ret = awcc_thermal_information(wdev, AWCC_OP_GET_FAN_MAX_RPM, id, + &max_rpm); + if (ret) + return ret; + + ret = awcc_get_fan_sensors(wdev, AWCC_OP_GET_TOTAL_FAN_TEMPS, id, + 0, &temp_count); + if (ret) + return ret; + + bitmap_zero(fan_temps, AWCC_ID_BITMAP_SIZE); + + for (j = 0; j < temp_count; j++) { + ret = awcc_get_fan_sensors(wdev, AWCC_OP_GET_FAN_TEMP_ID, + id, j, &temp_id); + if (ret) + break; + + temp_id = FIELD_GET(AWCC_RESOURCE_ID_MASK, temp_id); + __set_bit(temp_id, fan_temps); + } + + fan_data->id = id; + fan_data->min_rpm = min_rpm; + fan_data->max_rpm = max_rpm; + fan_data->label = awcc_get_fan_label(fan_temps); + bitmap_gather(gather, fan_temps, priv->temp_sensors, AWCC_ID_BITMAP_SIZE); + bitmap_copy(&fan_data->auto_channels_temp, gather, BITS_PER_LONG); + priv->fan_data[i] = fan_data; + } + + return 0; +} + +static int awcc_hwmon_init(struct wmi_device *wdev) +{ + struct awcc_priv *priv = dev_get_drvdata(&wdev->dev); + int ret; + + priv->fan_data = devm_kcalloc(&wdev->dev, priv->fan_count, + sizeof(*priv->fan_data), GFP_KERNEL); + if (!priv->fan_data) + return -ENOMEM; + + ret = awcc_hwmon_temps_init(wdev); + if (ret) + return ret; + + ret = awcc_hwmon_fans_init(wdev); + if (ret) + return ret; + + priv->hwdev = devm_hwmon_device_register_with_info(&wdev->dev, "alienware_wmi", + priv, &awcc_hwmon_chip_info, + awcc_hwmon_groups); + + return PTR_ERR_OR_ZERO(priv->hwdev); +} + +static void awcc_hwmon_suspend(struct device *dev) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + struct awcc_fan_data *fan; + unsigned int i; + u32 boost; + int ret; + + for (i = 0; i < priv->fan_count; i++) { + fan = priv->fan_data[i]; + + ret = awcc_thermal_information(priv->wdev, AWCC_OP_GET_FAN_BOOST, + fan->id, &boost); + if (ret) + dev_err(dev, "Failed to store Fan %u boost while suspending\n", i); + + fan->suspend_cache = ret ? 0 : clamp_val(boost, 0, 255); + + awcc_op_set_fan_boost(priv->wdev, fan->id, 0); + if (ret) + dev_err(dev, "Failed to set Fan %u boost to 0 while suspending\n", i); + } +} + +static void awcc_hwmon_resume(struct device *dev) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + struct awcc_fan_data *fan; + unsigned int i; + int ret; + + for (i = 0; i < priv->fan_count; i++) { + fan = priv->fan_data[i]; + + if (!fan->suspend_cache) + continue; + + ret = awcc_op_set_fan_boost(priv->wdev, fan->id, fan->suspend_cache); + if (ret) + dev_err(dev, "Failed to restore Fan %u boost while resuming\n", i); + } +} + +/* + * Thermal Profile control + * - Provides thermal profile control through the Platform Profile API + */ +static int awcc_platform_profile_get(struct device *dev, + enum platform_profile_option *profile) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + u32 out_data; + int ret; + + ret = awcc_op_get_current_profile(priv->wdev, &out_data); + if (ret) + return ret; + + switch (out_data) { + case AWCC_SPECIAL_PROFILE_CUSTOM: + *profile = PLATFORM_PROFILE_CUSTOM; + return 0; + case AWCC_SPECIAL_PROFILE_GMODE: + *profile = PLATFORM_PROFILE_PERFORMANCE; + return 0; + default: + break; + } + + if (!is_awcc_thermal_profile_id(out_data)) + return -ENODATA; + + out_data = FIELD_GET(AWCC_THERMAL_MODE_MASK, out_data); + *profile = awcc_mode_to_platform_profile[out_data]; + + return 0; +} + +static int awcc_platform_profile_set(struct device *dev, + enum platform_profile_option profile) +{ + struct awcc_priv *priv = dev_get_drvdata(dev); + + if (awcc->gmode) { + u32 gmode_status; + int ret; + + ret = awcc_game_shift_status(priv->wdev, + AWCC_OP_GET_GAME_SHIFT_STATUS, + &gmode_status); + + if (ret < 0) + return ret; + + if ((profile == PLATFORM_PROFILE_PERFORMANCE && !gmode_status) || + (profile != PLATFORM_PROFILE_PERFORMANCE && gmode_status)) { + ret = awcc_game_shift_status(priv->wdev, + AWCC_OP_TOGGLE_GAME_SHIFT, + &gmode_status); + + if (ret < 0) + return ret; + } + } + + return awcc_op_activate_profile(priv->wdev, priv->supported_profiles[profile]); +} + +static int awcc_platform_profile_probe(void *drvdata, unsigned long *choices) +{ + enum platform_profile_option profile; + struct awcc_priv *priv = drvdata; + enum awcc_thermal_profile mode; + u8 id, offset = 0; + int ret; + + /* + * Thermal profile IDs are listed last at offset + * fan_count + temp_count + unknown_count + */ + for (unsigned int i = 0; i < ARRAY_SIZE(priv->res_count) - 1; i++) + offset += priv->res_count[i]; + + for (unsigned int i = 0; i < priv->profile_count; i++) { + ret = awcc_op_get_resource_id(priv->wdev, i + offset, &id); + /* + * Some devices report an incorrect number of thermal profiles + * so the resource ID list may end prematurely + */ + if (ret == -EBADRQC) + break; + if (ret) + return ret; + + if (!is_awcc_thermal_profile_id(id)) { + dev_dbg(&priv->wdev->dev, "Unmapped thermal profile ID 0x%02x\n", id); + continue; + } + + mode = FIELD_GET(AWCC_THERMAL_MODE_MASK, id); + profile = awcc_mode_to_platform_profile[mode]; + priv->supported_profiles[profile] = id; + + __set_bit(profile, choices); + } + + if (bitmap_empty(choices, PLATFORM_PROFILE_LAST)) + return -ENODEV; + + if (awcc->gmode) { + priv->supported_profiles[PLATFORM_PROFILE_PERFORMANCE] = + AWCC_SPECIAL_PROFILE_GMODE; + + __set_bit(PLATFORM_PROFILE_PERFORMANCE, choices); + } + + /* Every model supports the "custom" profile */ + priv->supported_profiles[PLATFORM_PROFILE_CUSTOM] = + AWCC_SPECIAL_PROFILE_CUSTOM; + + __set_bit(PLATFORM_PROFILE_CUSTOM, choices); + + return 0; +} + +static const struct platform_profile_ops awcc_platform_profile_ops = { + .probe = awcc_platform_profile_probe, + .profile_get = awcc_platform_profile_get, + .profile_set = awcc_platform_profile_set, +}; + +static int awcc_platform_profile_init(struct wmi_device *wdev) +{ + struct awcc_priv *priv = dev_get_drvdata(&wdev->dev); + + priv->ppdev = devm_platform_profile_register(&wdev->dev, "alienware-wmi", + priv, &awcc_platform_profile_ops); + + return PTR_ERR_OR_ZERO(priv->ppdev); +} + +/* + * DebugFS + */ +static int awcc_debugfs_system_description_read(struct seq_file *seq, void *data) +{ + struct device *dev = seq->private; + struct awcc_priv *priv = dev_get_drvdata(dev); + + seq_printf(seq, "0x%08x\n", priv->system_description); + + return 0; +} + +static int awcc_debugfs_hwmon_data_read(struct seq_file *seq, void *data) +{ + struct device *dev = seq->private; + struct awcc_priv *priv = dev_get_drvdata(dev); + const struct awcc_fan_data *fan; + unsigned int bit; + + seq_printf(seq, "Number of fans: %u\n", priv->fan_count); + seq_printf(seq, "Number of temperature sensors: %u\n\n", priv->temp_count); + + for (u32 i = 0; i < priv->fan_count; i++) { + fan = priv->fan_data[i]; + + seq_printf(seq, "Fan %u:\n", i); + seq_printf(seq, " ID: 0x%02x\n", fan->id); + seq_printf(seq, " Related temperature sensors bitmap: %lu\n", + fan->auto_channels_temp); + } + + seq_puts(seq, "\nTemperature sensor IDs:\n"); + for_each_set_bit(bit, priv->temp_sensors, AWCC_ID_BITMAP_SIZE) + seq_printf(seq, " 0x%02x\n", bit); + + return 0; +} + +static int awcc_debugfs_pprof_data_read(struct seq_file *seq, void *data) +{ + struct device *dev = seq->private; + struct awcc_priv *priv = dev_get_drvdata(dev); + + seq_printf(seq, "Number of thermal profiles: %u\n\n", priv->profile_count); + + for (u32 i = 0; i < PLATFORM_PROFILE_LAST; i++) { + if (!priv->supported_profiles[i]) + continue; + + seq_printf(seq, "Platform profile %u:\n", i); + seq_printf(seq, " ID: 0x%02x\n", priv->supported_profiles[i]); + } + + return 0; +} + +static int awcc_gpio_pin_show(struct seq_file *seq, void *data) +{ + unsigned long pin = debugfs_get_aux_num(seq->file); + struct wmi_device *wdev = seq->private; + u32 status; + int ret; + + ret = awcc_read_gpio_status(wdev, pin, &status); + if (ret) + return ret; + + seq_printf(seq, "%u\n", status); + + return 0; +} + +static ssize_t awcc_gpio_pin_write(struct file *file, const char __user *buf, + size_t count, loff_t *ppos) +{ + unsigned long pin = debugfs_get_aux_num(file); + struct seq_file *seq = file->private_data; + struct wmi_device *wdev = seq->private; + bool status; + int ret; + + if (!ppos || *ppos) + return -EINVAL; + + ret = kstrtobool_from_user(buf, count, &status); + if (ret) + return ret; + + ret = awcc_fwup_gpio_control(wdev, pin, status); + if (ret) + return ret; + + return count; +} + +DEFINE_SHOW_STORE_ATTRIBUTE(awcc_gpio_pin); + +static void awcc_debugfs_remove(void *data) +{ + struct dentry *root = data; + + debugfs_remove(root); +} + +static void awcc_debugfs_init(struct wmi_device *wdev) +{ + struct awcc_priv *priv = dev_get_drvdata(&wdev->dev); + struct dentry *root, *gpio_ctl; + u32 gpio_count; + char name[64]; + int ret; + + scnprintf(name, sizeof(name), "%s-%s", "alienware-wmi", dev_name(&wdev->dev)); + root = debugfs_create_dir(name, NULL); + + debugfs_create_devm_seqfile(&wdev->dev, "system_description", root, + awcc_debugfs_system_description_read); + + if (awcc->hwmon) + debugfs_create_devm_seqfile(&wdev->dev, "hwmon_data", root, + awcc_debugfs_hwmon_data_read); + + if (awcc->pprof) + debugfs_create_devm_seqfile(&wdev->dev, "pprof_data", root, + awcc_debugfs_pprof_data_read); + + ret = awcc_read_total_gpios(wdev, &gpio_count); + if (ret) { + dev_dbg(&wdev->dev, "Failed to get total GPIO Pin count\n"); + goto out_add_action; + } else if (gpio_count > AWCC_MAX_RES_COUNT) { + dev_dbg(&wdev->dev, "Reported GPIO Pin count may be incorrect: %u\n", gpio_count); + goto out_add_action; + } + + gpio_ctl = debugfs_create_dir("gpio_ctl", root); + + priv->gpio_count = gpio_count; + debugfs_create_u32("total_gpios", 0444, gpio_ctl, &priv->gpio_count); + + for (unsigned int i = 0; i < gpio_count; i++) { + scnprintf(name, sizeof(name), "pin%u", i); + debugfs_create_file_aux_num(name, 0644, gpio_ctl, wdev, i, + &awcc_gpio_pin_fops); + } + +out_add_action: + devm_add_action_or_reset(&wdev->dev, awcc_debugfs_remove, root); +} + +static int alienware_awcc_setup(struct wmi_device *wdev) +{ + struct awcc_priv *priv; + int ret; + + priv = devm_kzalloc(&wdev->dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + ret = awcc_thermal_information(wdev, AWCC_OP_GET_SYSTEM_DESCRIPTION, + 0, &priv->system_description); + if (ret < 0) + return ret; + + /* Sanity check */ + for (unsigned int i = 0; i < ARRAY_SIZE(priv->res_count); i++) { + if (priv->res_count[i] > AWCC_MAX_RES_COUNT) { + dev_err(&wdev->dev, "Malformed system description: 0x%08x\n", + priv->system_description); + return -ENXIO; + } + } + + priv->wdev = wdev; + dev_set_drvdata(&wdev->dev, priv); + + if (awcc->hwmon) { + ret = awcc_hwmon_init(wdev); + if (ret) + return ret; + } + + if (awcc->pprof) { + ret = awcc_platform_profile_init(wdev); + if (ret) + return ret; + } + + awcc_debugfs_init(wdev); + + return 0; +} + +/* + * WMAX WMI driver + */ +static int wmax_wmi_update_led(struct alienfx_priv *priv, + struct wmi_device *wdev, u8 location) +{ + struct wmax_led_args in_args = { + .led_mask = 1 << location, + .colors = priv->colors[location], + .state = priv->lighting_control_state, + }; + + return alienware_wmi_command(wdev, WMAX_METHOD_ZONE_CONTROL, &in_args, + sizeof(in_args), NULL); +} + +static int wmax_wmi_update_brightness(struct alienfx_priv *priv, + struct wmi_device *wdev, u8 brightness) +{ + struct wmax_brightness_args in_args = { + .led_mask = 0xFF, + .percentage = brightness, + }; + + return alienware_wmi_command(wdev, WMAX_METHOD_BRIGHTNESS, &in_args, + sizeof(in_args), NULL); +} + +static int wmax_wmi_probe(struct wmi_device *wdev, const void *context) +{ + struct alienfx_platdata pdata = { + .wdev = wdev, + .ops = { + .upd_led = wmax_wmi_update_led, + .upd_brightness = wmax_wmi_update_brightness, + }, + }; + int ret; + + if (awcc) + ret = alienware_awcc_setup(wdev); + else + ret = alienware_alienfx_setup(&pdata); + + return ret; +} + +static int wmax_wmi_suspend(struct device *dev) +{ + if (awcc->hwmon) + awcc_hwmon_suspend(dev); + + return 0; +} + +static int wmax_wmi_resume(struct device *dev) +{ + if (awcc->hwmon) + awcc_hwmon_resume(dev); + + return 0; +} + +static DEFINE_SIMPLE_DEV_PM_OPS(wmax_wmi_pm_ops, wmax_wmi_suspend, wmax_wmi_resume); + +static const struct wmi_device_id alienware_wmax_device_id_table[] = { + { WMAX_CONTROL_GUID, NULL }, + { }, +}; +MODULE_DEVICE_TABLE(wmi, alienware_wmax_device_id_table); + +static struct wmi_driver alienware_wmax_wmi_driver = { + .driver = { + .name = "alienware-wmi-wmax", + .probe_type = PROBE_PREFER_ASYNCHRONOUS, + .pm = pm_sleep_ptr(&wmax_wmi_pm_ops), + }, + .id_table = alienware_wmax_device_id_table, + .probe = wmax_wmi_probe, + .no_singleton = true, +}; + +int __init alienware_wmax_wmi_init(void) +{ + const struct dmi_system_id *id; + + id = dmi_first_match(awcc_dmi_table); + if (id) + awcc = id->driver_data; + + if (force_hwmon) { + if (!awcc) + awcc = &empty_quirks; + + awcc->hwmon = true; + } + + if (force_platform_profile) { + if (!awcc) + awcc = &empty_quirks; + + awcc->pprof = true; + } + + if (force_gmode) { + if (awcc) + awcc->gmode = true; + else + pr_warn("force_gmode requires platform profile support\n"); + } + + return wmi_driver_register(&alienware_wmax_wmi_driver); +} + +void __exit alienware_wmax_wmi_exit(void) +{ + wmi_driver_unregister(&alienware_wmax_wmi_driver); +} diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c deleted file mode 100644 index e252e0cf47ef..000000000000 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ /dev/null @@ -1,1249 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Alienware AlienFX control - * - * Copyright (C) 2014 Dell Inc <Dell.Client.Kernel@dell.com> - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/acpi.h> -#include <linux/bitfield.h> -#include <linux/bits.h> -#include <linux/module.h> -#include <linux/platform_device.h> -#include <linux/platform_profile.h> -#include <linux/dmi.h> -#include <linux/leds.h> - -#define LEGACY_CONTROL_GUID "A90597CE-A997-11DA-B012-B622A1EF5492" -#define LEGACY_POWER_CONTROL_GUID "A80593CE-A997-11DA-B012-B622A1EF5492" -#define WMAX_CONTROL_GUID "A70591CE-A997-11DA-B012-B622A1EF5492" - -#define WMAX_METHOD_HDMI_SOURCE 0x1 -#define WMAX_METHOD_HDMI_STATUS 0x2 -#define WMAX_METHOD_BRIGHTNESS 0x3 -#define WMAX_METHOD_ZONE_CONTROL 0x4 -#define WMAX_METHOD_HDMI_CABLE 0x5 -#define WMAX_METHOD_AMPLIFIER_CABLE 0x6 -#define WMAX_METHOD_DEEP_SLEEP_CONTROL 0x0B -#define WMAX_METHOD_DEEP_SLEEP_STATUS 0x0C -#define WMAX_METHOD_THERMAL_INFORMATION 0x14 -#define WMAX_METHOD_THERMAL_CONTROL 0x15 -#define WMAX_METHOD_GAME_SHIFT_STATUS 0x25 - -#define WMAX_THERMAL_MODE_GMODE 0xAB - -#define WMAX_FAILURE_CODE 0xFFFFFFFF - -MODULE_AUTHOR("Mario Limonciello <mario.limonciello@outlook.com>"); -MODULE_DESCRIPTION("Alienware special feature control"); -MODULE_LICENSE("GPL"); -MODULE_ALIAS("wmi:" LEGACY_CONTROL_GUID); -MODULE_ALIAS("wmi:" WMAX_CONTROL_GUID); - -static bool force_platform_profile; -module_param_unsafe(force_platform_profile, bool, 0); -MODULE_PARM_DESC(force_platform_profile, "Forces auto-detecting thermal profiles without checking if WMI thermal backend is available"); - -static bool force_gmode; -module_param_unsafe(force_gmode, bool, 0); -MODULE_PARM_DESC(force_gmode, "Forces G-Mode when performance profile is selected"); - -enum INTERFACE_FLAGS { - LEGACY, - WMAX, -}; - -enum LEGACY_CONTROL_STATES { - LEGACY_RUNNING = 1, - LEGACY_BOOTING = 0, - LEGACY_SUSPEND = 3, -}; - -enum WMAX_CONTROL_STATES { - WMAX_RUNNING = 0xFF, - WMAX_BOOTING = 0, - WMAX_SUSPEND = 3, -}; - -enum WMAX_THERMAL_INFORMATION_OPERATIONS { - WMAX_OPERATION_SYS_DESCRIPTION = 0x02, - WMAX_OPERATION_LIST_IDS = 0x03, - WMAX_OPERATION_CURRENT_PROFILE = 0x0B, -}; - -enum WMAX_THERMAL_CONTROL_OPERATIONS { - WMAX_OPERATION_ACTIVATE_PROFILE = 0x01, -}; - -enum WMAX_GAME_SHIFT_STATUS_OPERATIONS { - WMAX_OPERATION_TOGGLE_GAME_SHIFT = 0x01, - WMAX_OPERATION_GET_GAME_SHIFT_STATUS = 0x02, -}; - -enum WMAX_THERMAL_TABLES { - WMAX_THERMAL_TABLE_BASIC = 0x90, - WMAX_THERMAL_TABLE_USTT = 0xA0, -}; - -enum wmax_thermal_mode { - THERMAL_MODE_USTT_BALANCED, - THERMAL_MODE_USTT_BALANCED_PERFORMANCE, - THERMAL_MODE_USTT_COOL, - THERMAL_MODE_USTT_QUIET, - THERMAL_MODE_USTT_PERFORMANCE, - THERMAL_MODE_USTT_LOW_POWER, - THERMAL_MODE_BASIC_QUIET, - THERMAL_MODE_BASIC_BALANCED, - THERMAL_MODE_BASIC_BALANCED_PERFORMANCE, - THERMAL_MODE_BASIC_PERFORMANCE, - THERMAL_MODE_LAST, -}; - -static const enum platform_profile_option wmax_mode_to_platform_profile[THERMAL_MODE_LAST] = { - [THERMAL_MODE_USTT_BALANCED] = PLATFORM_PROFILE_BALANCED, - [THERMAL_MODE_USTT_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, - [THERMAL_MODE_USTT_COOL] = PLATFORM_PROFILE_COOL, - [THERMAL_MODE_USTT_QUIET] = PLATFORM_PROFILE_QUIET, - [THERMAL_MODE_USTT_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, - [THERMAL_MODE_USTT_LOW_POWER] = PLATFORM_PROFILE_LOW_POWER, - [THERMAL_MODE_BASIC_QUIET] = PLATFORM_PROFILE_QUIET, - [THERMAL_MODE_BASIC_BALANCED] = PLATFORM_PROFILE_BALANCED, - [THERMAL_MODE_BASIC_BALANCED_PERFORMANCE] = PLATFORM_PROFILE_BALANCED_PERFORMANCE, - [THERMAL_MODE_BASIC_PERFORMANCE] = PLATFORM_PROFILE_PERFORMANCE, -}; - -struct quirk_entry { - u8 num_zones; - u8 hdmi_mux; - u8 amplifier; - u8 deepslp; - bool thermal; - bool gmode; -}; - -static struct quirk_entry *quirks; - - -static struct quirk_entry quirk_inspiron5675 = { - .num_zones = 2, - .hdmi_mux = 0, - .amplifier = 0, - .deepslp = 0, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_unknown = { - .num_zones = 2, - .hdmi_mux = 0, - .amplifier = 0, - .deepslp = 0, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_x51_r1_r2 = { - .num_zones = 3, - .hdmi_mux = 0, - .amplifier = 0, - .deepslp = 0, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_x51_r3 = { - .num_zones = 4, - .hdmi_mux = 0, - .amplifier = 1, - .deepslp = 0, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_asm100 = { - .num_zones = 2, - .hdmi_mux = 1, - .amplifier = 0, - .deepslp = 0, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_asm200 = { - .num_zones = 2, - .hdmi_mux = 1, - .amplifier = 0, - .deepslp = 1, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_asm201 = { - .num_zones = 2, - .hdmi_mux = 1, - .amplifier = 1, - .deepslp = 1, - .thermal = false, - .gmode = false, -}; - -static struct quirk_entry quirk_g_series = { - .num_zones = 0, - .hdmi_mux = 0, - .amplifier = 0, - .deepslp = 0, - .thermal = true, - .gmode = true, -}; - -static struct quirk_entry quirk_x_series = { - .num_zones = 0, - .hdmi_mux = 0, - .amplifier = 0, - .deepslp = 0, - .thermal = true, - .gmode = false, -}; - -static int __init dmi_matched(const struct dmi_system_id *dmi) -{ - quirks = dmi->driver_data; - return 1; -} - -static const struct dmi_system_id alienware_quirks[] __initconst = { - { - .callback = dmi_matched, - .ident = "Alienware ASM100", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "ASM100"), - }, - .driver_data = &quirk_asm100, - }, - { - .callback = dmi_matched, - .ident = "Alienware ASM200", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "ASM200"), - }, - .driver_data = &quirk_asm200, - }, - { - .callback = dmi_matched, - .ident = "Alienware ASM201", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "ASM201"), - }, - .driver_data = &quirk_asm201, - }, - { - .callback = dmi_matched, - .ident = "Alienware m16 R1 AMD", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m16 R1 AMD"), - }, - .driver_data = &quirk_x_series, - }, - { - .callback = dmi_matched, - .ident = "Alienware m17 R5", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"), - }, - .driver_data = &quirk_x_series, - }, - { - .callback = dmi_matched, - .ident = "Alienware m18 R2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m18 R2"), - }, - .driver_data = &quirk_x_series, - }, - { - .callback = dmi_matched, - .ident = "Alienware x15 R1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x15 R1"), - }, - .driver_data = &quirk_x_series, - }, - { - .callback = dmi_matched, - .ident = "Alienware x17 R2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x17 R2"), - }, - .driver_data = &quirk_x_series, - }, - { - .callback = dmi_matched, - .ident = "Alienware X51 R1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51"), - }, - .driver_data = &quirk_x51_r1_r2, - }, - { - .callback = dmi_matched, - .ident = "Alienware X51 R2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R2"), - }, - .driver_data = &quirk_x51_r1_r2, - }, - { - .callback = dmi_matched, - .ident = "Alienware X51 R3", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), - DMI_MATCH(DMI_PRODUCT_NAME, "Alienware X51 R3"), - }, - .driver_data = &quirk_x51_r3, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. G15 5510", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5510"), - }, - .driver_data = &quirk_g_series, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. G15 5511", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5511"), - }, - .driver_data = &quirk_g_series, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. G15 5515", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5515"), - }, - .driver_data = &quirk_g_series, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. G3 3500", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "G3 3500"), - }, - .driver_data = &quirk_g_series, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. G3 3590", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "G3 3590"), - }, - .driver_data = &quirk_g_series, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. G5 5500", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "G5 5500"), - }, - .driver_data = &quirk_g_series, - }, - { - .callback = dmi_matched, - .ident = "Dell Inc. Inspiron 5675", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."), - DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 5675"), - }, - .driver_data = &quirk_inspiron5675, - }, - {} -}; - -struct color_platform { - u8 blue; - u8 green; - u8 red; -} __packed; - -struct wmax_brightness_args { - u32 led_mask; - u32 percentage; -}; - -struct wmax_basic_args { - u8 arg; -}; - -struct legacy_led_args { - struct color_platform colors; - u8 brightness; - u8 state; -} __packed; - -struct wmax_led_args { - u32 led_mask; - struct color_platform colors; - u8 state; -} __packed; - -struct wmax_u32_args { - u8 operation; - u8 arg1; - u8 arg2; - u8 arg3; -}; - -static struct platform_device *platform_device; -static struct color_platform colors[4]; -static enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST]; - -static u8 interface; -static u8 lighting_control_state; -static u8 global_brightness; - -/* - * Helpers used for zone control - */ -static int parse_rgb(const char *buf, struct color_platform *colors) -{ - long unsigned int rgb; - int ret; - union color_union { - struct color_platform cp; - int package; - } repackager; - - ret = kstrtoul(buf, 16, &rgb); - if (ret) - return ret; - - /* RGB triplet notation is 24-bit hexadecimal */ - if (rgb > 0xFFFFFF) - return -EINVAL; - - repackager.package = rgb & 0x0f0f0f0f; - pr_debug("alienware-wmi: r: %d g:%d b: %d\n", - repackager.cp.red, repackager.cp.green, repackager.cp.blue); - *colors = repackager.cp; - return 0; -} - -/* - * Individual RGB zone control - */ -static int alienware_update_led(u8 location) -{ - int method_id; - acpi_status status; - char *guid; - struct acpi_buffer input; - struct legacy_led_args legacy_args; - struct wmax_led_args wmax_basic_args; - if (interface == WMAX) { - wmax_basic_args.led_mask = 1 << location; - wmax_basic_args.colors = colors[location]; - wmax_basic_args.state = lighting_control_state; - guid = WMAX_CONTROL_GUID; - method_id = WMAX_METHOD_ZONE_CONTROL; - - input.length = sizeof(wmax_basic_args); - input.pointer = &wmax_basic_args; - } else { - legacy_args.colors = colors[location]; - legacy_args.brightness = global_brightness; - legacy_args.state = 0; - if (lighting_control_state == LEGACY_BOOTING || - lighting_control_state == LEGACY_SUSPEND) { - guid = LEGACY_POWER_CONTROL_GUID; - legacy_args.state = lighting_control_state; - } else - guid = LEGACY_CONTROL_GUID; - method_id = location + 1; - - input.length = sizeof(legacy_args); - input.pointer = &legacy_args; - } - pr_debug("alienware-wmi: guid %s method %d\n", guid, method_id); - - status = wmi_evaluate_method(guid, 0, method_id, &input, NULL); - if (ACPI_FAILURE(status)) - pr_err("alienware-wmi: zone set failure: %u\n", status); - return ACPI_FAILURE(status); -} - -static ssize_t zone_show(struct device *dev, struct device_attribute *attr, - char *buf, u8 location) -{ - return sprintf(buf, "red: %d, green: %d, blue: %d\n", - colors[location].red, colors[location].green, - colors[location].blue); - -} - -static ssize_t zone_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count, u8 location) -{ - int ret; - - ret = parse_rgb(buf, &colors[location]); - if (ret) - return ret; - - ret = alienware_update_led(location); - - return ret ? ret : count; -} - -static ssize_t zone00_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return zone_show(dev, attr, buf, 0); -} - -static ssize_t zone00_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - return zone_store(dev, attr, buf, count, 0); -} - -static DEVICE_ATTR_RW(zone00); - -static ssize_t zone01_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return zone_show(dev, attr, buf, 1); -} - -static ssize_t zone01_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - return zone_store(dev, attr, buf, count, 1); -} - -static DEVICE_ATTR_RW(zone01); - -static ssize_t zone02_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return zone_show(dev, attr, buf, 2); -} - -static ssize_t zone02_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - return zone_store(dev, attr, buf, count, 2); -} - -static DEVICE_ATTR_RW(zone02); - -static ssize_t zone03_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - return zone_show(dev, attr, buf, 3); -} - -static ssize_t zone03_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - return zone_store(dev, attr, buf, count, 3); -} - -static DEVICE_ATTR_RW(zone03); - -/* - * Lighting control state device attribute (Global) - */ -static ssize_t lighting_control_state_show(struct device *dev, - struct device_attribute *attr, - char *buf) -{ - if (lighting_control_state == LEGACY_BOOTING) - return sysfs_emit(buf, "[booting] running suspend\n"); - else if (lighting_control_state == LEGACY_SUSPEND) - return sysfs_emit(buf, "booting running [suspend]\n"); - - return sysfs_emit(buf, "booting [running] suspend\n"); -} - -static ssize_t lighting_control_state_store(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - u8 val; - - if (strcmp(buf, "booting\n") == 0) - val = LEGACY_BOOTING; - else if (strcmp(buf, "suspend\n") == 0) - val = LEGACY_SUSPEND; - else if (interface == LEGACY) - val = LEGACY_RUNNING; - else - val = WMAX_RUNNING; - - lighting_control_state = val; - pr_debug("alienware-wmi: updated control state to %d\n", - lighting_control_state); - - return count; -} - -static DEVICE_ATTR_RW(lighting_control_state); - -static umode_t zone_attr_visible(struct kobject *kobj, - struct attribute *attr, int n) -{ - if (n < quirks->num_zones + 1) - return attr->mode; - - return 0; -} - -static bool zone_group_visible(struct kobject *kobj) -{ - return quirks->num_zones > 0; -} -DEFINE_SYSFS_GROUP_VISIBLE(zone); - -static struct attribute *zone_attrs[] = { - &dev_attr_lighting_control_state.attr, - &dev_attr_zone00.attr, - &dev_attr_zone01.attr, - &dev_attr_zone02.attr, - &dev_attr_zone03.attr, - NULL -}; - -static struct attribute_group zone_attribute_group = { - .name = "rgb_zones", - .is_visible = SYSFS_GROUP_VISIBLE(zone), - .attrs = zone_attrs, -}; - -/* - * LED Brightness (Global) - */ -static int wmax_brightness(int brightness) -{ - acpi_status status; - struct acpi_buffer input; - struct wmax_brightness_args args = { - .led_mask = 0xFF, - .percentage = brightness, - }; - input.length = sizeof(args); - input.pointer = &args; - status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, - WMAX_METHOD_BRIGHTNESS, &input, NULL); - if (ACPI_FAILURE(status)) - pr_err("alienware-wmi: brightness set failure: %u\n", status); - return ACPI_FAILURE(status); -} - -static void global_led_set(struct led_classdev *led_cdev, - enum led_brightness brightness) -{ - int ret; - global_brightness = brightness; - if (interface == WMAX) - ret = wmax_brightness(brightness); - else - ret = alienware_update_led(0); - if (ret) - pr_err("LED brightness update failed\n"); -} - -static enum led_brightness global_led_get(struct led_classdev *led_cdev) -{ - return global_brightness; -} - -static struct led_classdev global_led = { - .brightness_set = global_led_set, - .brightness_get = global_led_get, - .name = "alienware::global_brightness", -}; - -static int alienware_zone_init(struct platform_device *dev) -{ - if (interface == WMAX) { - lighting_control_state = WMAX_RUNNING; - } else if (interface == LEGACY) { - lighting_control_state = LEGACY_RUNNING; - } - global_led.max_brightness = 0x0F; - global_brightness = global_led.max_brightness; - - return led_classdev_register(&dev->dev, &global_led); -} - -static void alienware_zone_exit(struct platform_device *dev) -{ - if (!quirks->num_zones) - return; - - led_classdev_unregister(&global_led); -} - -static acpi_status alienware_wmax_command(void *in_args, size_t in_size, - u32 command, u32 *out_data) -{ - acpi_status status; - union acpi_object *obj; - struct acpi_buffer input; - struct acpi_buffer output; - - input.length = in_size; - input.pointer = in_args; - if (out_data) { - output.length = ACPI_ALLOCATE_BUFFER; - output.pointer = NULL; - status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, - command, &input, &output); - if (ACPI_SUCCESS(status)) { - obj = (union acpi_object *)output.pointer; - if (obj && obj->type == ACPI_TYPE_INTEGER) - *out_data = (u32)obj->integer.value; - } - kfree(output.pointer); - } else { - status = wmi_evaluate_method(WMAX_CONTROL_GUID, 0, - command, &input, NULL); - } - return status; -} - -/* - * The HDMI mux sysfs node indicates the status of the HDMI input mux. - * It can toggle between standard system GPU output and HDMI input. - */ -static ssize_t cable_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct wmax_basic_args in_args = { - .arg = 0, - }; - acpi_status status; - u32 out_data; - - status = - alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_HDMI_CABLE, &out_data); - if (ACPI_SUCCESS(status)) { - if (out_data == 0) - return sysfs_emit(buf, "[unconnected] connected unknown\n"); - else if (out_data == 1) - return sysfs_emit(buf, "unconnected [connected] unknown\n"); - } - pr_err("alienware-wmi: unknown HDMI cable status: %d\n", status); - return sysfs_emit(buf, "unconnected connected [unknown]\n"); -} - -static ssize_t source_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct wmax_basic_args in_args = { - .arg = 0, - }; - acpi_status status; - u32 out_data; - - status = - alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_HDMI_STATUS, &out_data); - - if (ACPI_SUCCESS(status)) { - if (out_data == 1) - return sysfs_emit(buf, "[input] gpu unknown\n"); - else if (out_data == 2) - return sysfs_emit(buf, "input [gpu] unknown\n"); - } - pr_err("alienware-wmi: unknown HDMI source status: %u\n", status); - return sysfs_emit(buf, "input gpu [unknown]\n"); -} - -static ssize_t source_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct wmax_basic_args args; - acpi_status status; - - if (strcmp(buf, "gpu\n") == 0) - args.arg = 1; - else if (strcmp(buf, "input\n") == 0) - args.arg = 2; - else - args.arg = 3; - pr_debug("alienware-wmi: setting hdmi to %d : %s", args.arg, buf); - - status = alienware_wmax_command(&args, sizeof(args), - WMAX_METHOD_HDMI_SOURCE, NULL); - - if (ACPI_FAILURE(status)) - pr_err("alienware-wmi: HDMI toggle failed: results: %u\n", - status); - return count; -} - -static DEVICE_ATTR_RO(cable); -static DEVICE_ATTR_RW(source); - -static bool hdmi_group_visible(struct kobject *kobj) -{ - return quirks->hdmi_mux; -} -DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(hdmi); - -static struct attribute *hdmi_attrs[] = { - &dev_attr_cable.attr, - &dev_attr_source.attr, - NULL, -}; - -static const struct attribute_group hdmi_attribute_group = { - .name = "hdmi", - .is_visible = SYSFS_GROUP_VISIBLE(hdmi), - .attrs = hdmi_attrs, -}; - -/* - * Alienware GFX amplifier support - * - Currently supports reading cable status - * - Leaving expansion room to possibly support dock/undock events later - */ -static ssize_t status_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct wmax_basic_args in_args = { - .arg = 0, - }; - acpi_status status; - u32 out_data; - - status = - alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_AMPLIFIER_CABLE, &out_data); - if (ACPI_SUCCESS(status)) { - if (out_data == 0) - return sysfs_emit(buf, "[unconnected] connected unknown\n"); - else if (out_data == 1) - return sysfs_emit(buf, "unconnected [connected] unknown\n"); - } - pr_err("alienware-wmi: unknown amplifier cable status: %d\n", status); - return sysfs_emit(buf, "unconnected connected [unknown]\n"); -} - -static DEVICE_ATTR_RO(status); - -static bool amplifier_group_visible(struct kobject *kobj) -{ - return quirks->amplifier; -} -DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(amplifier); - -static struct attribute *amplifier_attrs[] = { - &dev_attr_status.attr, - NULL, -}; - -static const struct attribute_group amplifier_attribute_group = { - .name = "amplifier", - .is_visible = SYSFS_GROUP_VISIBLE(amplifier), - .attrs = amplifier_attrs, -}; - -/* - * Deep Sleep Control support - * - Modifies BIOS setting for deep sleep control allowing extra wakeup events - */ -static ssize_t deepsleep_show(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct wmax_basic_args in_args = { - .arg = 0, - }; - acpi_status status; - u32 out_data; - - status = alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_DEEP_SLEEP_STATUS, &out_data); - if (ACPI_SUCCESS(status)) { - if (out_data == 0) - return sysfs_emit(buf, "[disabled] s5 s5_s4\n"); - else if (out_data == 1) - return sysfs_emit(buf, "disabled [s5] s5_s4\n"); - else if (out_data == 2) - return sysfs_emit(buf, "disabled s5 [s5_s4]\n"); - } - pr_err("alienware-wmi: unknown deep sleep status: %d\n", status); - return sysfs_emit(buf, "disabled s5 s5_s4 [unknown]\n"); -} - -static ssize_t deepsleep_store(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct wmax_basic_args args; - acpi_status status; - - if (strcmp(buf, "disabled\n") == 0) - args.arg = 0; - else if (strcmp(buf, "s5\n") == 0) - args.arg = 1; - else - args.arg = 2; - pr_debug("alienware-wmi: setting deep sleep to %d : %s", args.arg, buf); - - status = alienware_wmax_command(&args, sizeof(args), - WMAX_METHOD_DEEP_SLEEP_CONTROL, NULL); - - if (ACPI_FAILURE(status)) - pr_err("alienware-wmi: deep sleep control failed: results: %u\n", - status); - return count; -} - -static DEVICE_ATTR_RW(deepsleep); - -static bool deepsleep_group_visible(struct kobject *kobj) -{ - return quirks->deepslp; -} -DEFINE_SIMPLE_SYSFS_GROUP_VISIBLE(deepsleep); - -static struct attribute *deepsleep_attrs[] = { - &dev_attr_deepsleep.attr, - NULL, -}; - -static const struct attribute_group deepsleep_attribute_group = { - .name = "deepsleep", - .is_visible = SYSFS_GROUP_VISIBLE(deepsleep), - .attrs = deepsleep_attrs, -}; - -/* - * Thermal Profile control - * - Provides thermal profile control through the Platform Profile API - */ -#define WMAX_THERMAL_TABLE_MASK GENMASK(7, 4) -#define WMAX_THERMAL_MODE_MASK GENMASK(3, 0) -#define WMAX_SENSOR_ID_MASK BIT(8) - -static bool is_wmax_thermal_code(u32 code) -{ - if (code & WMAX_SENSOR_ID_MASK) - return false; - - if ((code & WMAX_THERMAL_MODE_MASK) >= THERMAL_MODE_LAST) - return false; - - if ((code & WMAX_THERMAL_TABLE_MASK) == WMAX_THERMAL_TABLE_BASIC && - (code & WMAX_THERMAL_MODE_MASK) >= THERMAL_MODE_BASIC_QUIET) - return true; - - if ((code & WMAX_THERMAL_TABLE_MASK) == WMAX_THERMAL_TABLE_USTT && - (code & WMAX_THERMAL_MODE_MASK) <= THERMAL_MODE_USTT_LOW_POWER) - return true; - - return false; -} - -static int wmax_thermal_information(u8 operation, u8 arg, u32 *out_data) -{ - struct wmax_u32_args in_args = { - .operation = operation, - .arg1 = arg, - .arg2 = 0, - .arg3 = 0, - }; - acpi_status status; - - status = alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_THERMAL_INFORMATION, - out_data); - - if (ACPI_FAILURE(status)) - return -EIO; - - if (*out_data == WMAX_FAILURE_CODE) - return -EBADRQC; - - return 0; -} - -static int wmax_thermal_control(u8 profile) -{ - struct wmax_u32_args in_args = { - .operation = WMAX_OPERATION_ACTIVATE_PROFILE, - .arg1 = profile, - .arg2 = 0, - .arg3 = 0, - }; - acpi_status status; - u32 out_data; - - status = alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_THERMAL_CONTROL, - &out_data); - - if (ACPI_FAILURE(status)) - return -EIO; - - if (out_data == WMAX_FAILURE_CODE) - return -EBADRQC; - - return 0; -} - -static int wmax_game_shift_status(u8 operation, u32 *out_data) -{ - struct wmax_u32_args in_args = { - .operation = operation, - .arg1 = 0, - .arg2 = 0, - .arg3 = 0, - }; - acpi_status status; - - status = alienware_wmax_command(&in_args, sizeof(in_args), - WMAX_METHOD_GAME_SHIFT_STATUS, - out_data); - - if (ACPI_FAILURE(status)) - return -EIO; - - if (*out_data == WMAX_FAILURE_CODE) - return -EOPNOTSUPP; - - return 0; -} - -static int thermal_profile_get(struct device *dev, - enum platform_profile_option *profile) -{ - u32 out_data; - int ret; - - ret = wmax_thermal_information(WMAX_OPERATION_CURRENT_PROFILE, - 0, &out_data); - - if (ret < 0) - return ret; - - if (out_data == WMAX_THERMAL_MODE_GMODE) { - *profile = PLATFORM_PROFILE_PERFORMANCE; - return 0; - } - - if (!is_wmax_thermal_code(out_data)) - return -ENODATA; - - out_data &= WMAX_THERMAL_MODE_MASK; - *profile = wmax_mode_to_platform_profile[out_data]; - - return 0; -} - -static int thermal_profile_set(struct device *dev, - enum platform_profile_option profile) -{ - if (quirks->gmode) { - u32 gmode_status; - int ret; - - ret = wmax_game_shift_status(WMAX_OPERATION_GET_GAME_SHIFT_STATUS, - &gmode_status); - - if (ret < 0) - return ret; - - if ((profile == PLATFORM_PROFILE_PERFORMANCE && !gmode_status) || - (profile != PLATFORM_PROFILE_PERFORMANCE && gmode_status)) { - ret = wmax_game_shift_status(WMAX_OPERATION_TOGGLE_GAME_SHIFT, - &gmode_status); - - if (ret < 0) - return ret; - } - } - - return wmax_thermal_control(supported_thermal_profiles[profile]); -} - -static int thermal_profile_probe(void *drvdata, unsigned long *choices) -{ - enum platform_profile_option profile; - enum wmax_thermal_mode mode; - u8 sys_desc[4]; - u32 first_mode; - u32 out_data; - int ret; - - ret = wmax_thermal_information(WMAX_OPERATION_SYS_DESCRIPTION, - 0, (u32 *) &sys_desc); - if (ret < 0) - return ret; - - first_mode = sys_desc[0] + sys_desc[1]; - - for (u32 i = 0; i < sys_desc[3]; i++) { - ret = wmax_thermal_information(WMAX_OPERATION_LIST_IDS, - i + first_mode, &out_data); - - if (ret == -EIO) - return ret; - - if (ret == -EBADRQC) - break; - - if (!is_wmax_thermal_code(out_data)) - continue; - - mode = out_data & WMAX_THERMAL_MODE_MASK; - profile = wmax_mode_to_platform_profile[mode]; - supported_thermal_profiles[profile] = out_data; - - set_bit(profile, choices); - } - - if (bitmap_empty(choices, PLATFORM_PROFILE_LAST)) - return -ENODEV; - - if (quirks->gmode) { - supported_thermal_profiles[PLATFORM_PROFILE_PERFORMANCE] = - WMAX_THERMAL_MODE_GMODE; - - set_bit(PLATFORM_PROFILE_PERFORMANCE, choices); - } - - return 0; -} - -static const struct platform_profile_ops awcc_platform_profile_ops = { - .probe = thermal_profile_probe, - .profile_get = thermal_profile_get, - .profile_set = thermal_profile_set, -}; - -static int create_thermal_profile(struct platform_device *platform_device) -{ - struct device *ppdev; - - ppdev = devm_platform_profile_register(&platform_device->dev, "alienware-wmi", - NULL, &awcc_platform_profile_ops); - - return PTR_ERR_OR_ZERO(ppdev); -} - -/* - * Platform Driver - */ -static const struct attribute_group *alienfx_groups[] = { - &zone_attribute_group, - &hdmi_attribute_group, - &lifier_attribute_group, - &deepsleep_attribute_group, - NULL -}; - -static struct platform_driver platform_driver = { - .driver = { - .name = "alienware-wmi", - .dev_groups = alienfx_groups, - }, -}; - -static int __init alienware_wmi_init(void) -{ - int ret; - - if (wmi_has_guid(LEGACY_CONTROL_GUID)) - interface = LEGACY; - else if (wmi_has_guid(WMAX_CONTROL_GUID)) - interface = WMAX; - else { - pr_warn("alienware-wmi: No known WMI GUID found\n"); - return -ENODEV; - } - - dmi_check_system(alienware_quirks); - if (quirks == NULL) - quirks = &quirk_unknown; - - if (force_platform_profile) - quirks->thermal = true; - - if (force_gmode) { - if (quirks->thermal) - quirks->gmode = true; - else - pr_warn("force_gmode requires platform profile support\n"); - } - - ret = platform_driver_register(&platform_driver); - if (ret) - goto fail_platform_driver; - platform_device = platform_device_alloc("alienware-wmi", PLATFORM_DEVID_NONE); - if (!platform_device) { - ret = -ENOMEM; - goto fail_platform_device1; - } - ret = platform_device_add(platform_device); - if (ret) - goto fail_platform_device2; - - if (quirks->thermal) { - ret = create_thermal_profile(platform_device); - if (ret) - goto fail_prep_thermal_profile; - } - - if (quirks->num_zones > 0) { - ret = alienware_zone_init(platform_device); - if (ret) - goto fail_prep_zones; - } - - return 0; - -fail_prep_zones: - alienware_zone_exit(platform_device); -fail_prep_thermal_profile: - platform_device_del(platform_device); -fail_platform_device2: - platform_device_put(platform_device); -fail_platform_device1: - platform_driver_unregister(&platform_driver); -fail_platform_driver: - return ret; -} - -module_init(alienware_wmi_init); - -static void __exit alienware_wmi_exit(void) -{ - alienware_zone_exit(platform_device); - platform_device_unregister(platform_device); - platform_driver_unregister(&platform_driver); -} - -module_exit(alienware_wmi_exit); diff --git a/drivers/platform/x86/dell/alienware-wmi.h b/drivers/platform/x86/dell/alienware-wmi.h new file mode 100644 index 000000000000..68d4242211ae --- /dev/null +++ b/drivers/platform/x86/dell/alienware-wmi.h @@ -0,0 +1,117 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Alienware WMI special features driver + * + * Copyright (C) 2014 Dell Inc <Dell.Client.Kernel@dell.com> + * Copyright (C) 2024 Kurt Borja <kuurtb@gmail.com> + */ + +#ifndef _ALIENWARE_WMI_H_ +#define _ALIENWARE_WMI_H_ + +#include <linux/leds.h> +#include <linux/platform_device.h> +#include <linux/wmi.h> + +#define LEGACY_CONTROL_GUID "A90597CE-A997-11DA-B012-B622A1EF5492" +#define LEGACY_POWER_CONTROL_GUID "A80593CE-A997-11DA-B012-B622A1EF5492" +#define WMAX_CONTROL_GUID "A70591CE-A997-11DA-B012-B622A1EF5492" + +enum INTERFACE_FLAGS { + LEGACY, + WMAX, +}; + +enum LEGACY_CONTROL_STATES { + LEGACY_RUNNING = 1, + LEGACY_BOOTING = 0, + LEGACY_SUSPEND = 3, +}; + +enum WMAX_CONTROL_STATES { + WMAX_RUNNING = 0xFF, + WMAX_BOOTING = 0, + WMAX_SUSPEND = 3, +}; + +struct alienfx_quirks { + u8 num_zones; + bool hdmi_mux; + bool amplifier; + bool deepslp; +}; + +struct color_platform { + u8 blue; + u8 green; + u8 red; +} __packed; + +struct alienfx_priv { + struct platform_device *pdev; + struct led_classdev global_led; + struct color_platform colors[4]; + u8 global_brightness; + u8 lighting_control_state; +}; + +struct alienfx_ops { + int (*upd_led)(struct alienfx_priv *priv, struct wmi_device *wdev, + u8 location); + int (*upd_brightness)(struct alienfx_priv *priv, struct wmi_device *wdev, + u8 brightness); +}; + +struct alienfx_platdata { + struct wmi_device *wdev; + struct alienfx_ops ops; +}; + +extern u8 alienware_interface; +extern struct alienfx_quirks *alienfx; + +int alienware_wmi_command(struct wmi_device *wdev, u32 method_id, + void *in_args, size_t in_size, u32 *out_data); + +int alienware_alienfx_setup(struct alienfx_platdata *pdata); + +#if IS_ENABLED(CONFIG_ALIENWARE_WMI_LEGACY) +int __init alienware_legacy_wmi_init(void); +void __exit alienware_legacy_wmi_exit(void); +#else +static inline int alienware_legacy_wmi_init(void) +{ + return -ENODEV; +} + +static inline void alienware_legacy_wmi_exit(void) +{ +} +#endif + +#if IS_ENABLED(CONFIG_ALIENWARE_WMI_WMAX) +extern const struct attribute_group wmax_hdmi_attribute_group; +extern const struct attribute_group wmax_amplifier_attribute_group; +extern const struct attribute_group wmax_deepsleep_attribute_group; + +#define WMAX_DEV_GROUPS &wmax_hdmi_attribute_group, \ + &wmax_amplifier_attribute_group, \ + &wmax_deepsleep_attribute_group, + +int __init alienware_wmax_wmi_init(void); +void __exit alienware_wmax_wmi_exit(void); +#else +#define WMAX_DEV_GROUPS + +static inline int alienware_wmax_wmi_init(void) +{ + return -ENODEV; +} + + +static inline void alienware_wmax_wmi_exit(void) +{ +} +#endif + +#endif diff --git a/drivers/platform/x86/dell/dell-pc.c b/drivers/platform/x86/dell/dell-pc.c index 483240bb36e7..48cc7511905a 100644 --- a/drivers/platform/x86/dell/dell-pc.c +++ b/drivers/platform/x86/dell/dell-pc.c @@ -11,19 +11,20 @@ #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt #include <linux/bitfield.h> +#include <linux/bitops.h> #include <linux/bits.h> +#include <linux/device/faux.h> #include <linux/dmi.h> #include <linux/err.h> #include <linux/init.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/platform_profile.h> -#include <linux/platform_device.h> #include <linux/slab.h> #include "dell-smbios.h" -static struct platform_device *platform_device; +static struct faux_device *dell_pc_fdev; static int supported_modes; static const struct dmi_system_id dell_device_table[] __initconst = { @@ -146,11 +147,6 @@ static int thermal_get_supported_modes(int *supported_bits) dell_fill_request(&buffer, 0x0, 0, 0, 0); ret = dell_send_request(&buffer, CLASS_INFO, SELECT_THERMAL_MANAGEMENT); - /* Thermal function not supported */ - if (ret == -ENXIO) { - *supported_bits = 0; - return 0; - } if (ret) return ret; *supported_bits = FIELD_GET(DELL_THERMAL_SUPPORTED, buffer.output[1]); @@ -233,13 +229,13 @@ static int thermal_platform_profile_get(struct device *dev, static int thermal_platform_profile_probe(void *drvdata, unsigned long *choices) { if (supported_modes & DELL_QUIET) - set_bit(PLATFORM_PROFILE_QUIET, choices); + __set_bit(PLATFORM_PROFILE_QUIET, choices); if (supported_modes & DELL_COOL_BOTTOM) - set_bit(PLATFORM_PROFILE_COOL, choices); + __set_bit(PLATFORM_PROFILE_COOL, choices); if (supported_modes & DELL_BALANCED) - set_bit(PLATFORM_PROFILE_BALANCED, choices); + __set_bit(PLATFORM_PROFILE_BALANCED, choices); if (supported_modes & DELL_PERFORMANCE) - set_bit(PLATFORM_PROFILE_PERFORMANCE, choices); + __set_bit(PLATFORM_PROFILE_PERFORMANCE, choices); return 0; } @@ -250,68 +246,43 @@ static const struct platform_profile_ops dell_pc_platform_profile_ops = { .profile_set = thermal_platform_profile_set, }; -static int thermal_init(void) +static int dell_pc_faux_probe(struct faux_device *fdev) { struct device *ppdev; int ret; - /* If thermal commands are not supported, exit without error */ if (!dell_smbios_class_is_supported(CLASS_INFO)) - return 0; + return -ENODEV; - /* If thermal modes are not supported, exit without error */ ret = thermal_get_supported_modes(&supported_modes); if (ret < 0) return ret; - if (!supported_modes) - return 0; - - platform_device = platform_device_register_simple("dell-pc", PLATFORM_DEVID_NONE, NULL, 0); - if (IS_ERR(platform_device)) - return PTR_ERR(platform_device); - - ppdev = devm_platform_profile_register(&platform_device->dev, "dell-pc", - NULL, &dell_pc_platform_profile_ops); - if (IS_ERR(ppdev)) { - ret = PTR_ERR(ppdev); - goto cleanup_platform_device; - } - return 0; + ppdev = devm_platform_profile_register(&fdev->dev, "dell-pc", NULL, + &dell_pc_platform_profile_ops); -cleanup_platform_device: - platform_device_unregister(platform_device); - - return ret; + return PTR_ERR_OR_ZERO(ppdev); } -static void thermal_cleanup(void) -{ - platform_device_unregister(platform_device); -} +static const struct faux_device_ops dell_pc_faux_ops = { + .probe = dell_pc_faux_probe, +}; static int __init dell_init(void) { - int ret; - if (!dmi_check_system(dell_device_table)) return -ENODEV; - /* Do not fail module if thermal modes not supported, just skip */ - ret = thermal_init(); - if (ret) - goto fail_thermal; + dell_pc_fdev = faux_device_create("dell-pc", NULL, &dell_pc_faux_ops); + if (!dell_pc_fdev) + return -ENODEV; return 0; - -fail_thermal: - thermal_cleanup(); - return ret; } static void __exit dell_exit(void) { - thermal_cleanup(); + faux_device_destroy(dell_pc_fdev); } module_init(dell_init); diff --git a/drivers/platform/x86/dell/dell-uart-backlight.c b/drivers/platform/x86/dell/dell-uart-backlight.c index 50002ef13d5d..8f868f845350 100644 --- a/drivers/platform/x86/dell/dell-uart-backlight.c +++ b/drivers/platform/x86/dell/dell-uart-backlight.c @@ -325,7 +325,7 @@ static int dell_uart_bl_serdev_probe(struct serdev_device *serdev) return PTR_ERR_OR_ZERO(dell_bl->bl); } -struct serdev_device_driver dell_uart_bl_serdev_driver = { +static struct serdev_device_driver dell_uart_bl_serdev_driver = { .probe = dell_uart_bl_serdev_probe, .driver = { .name = KBUILD_MODNAME, diff --git a/drivers/platform/x86/dell/dell-wmi-ddv.c b/drivers/platform/x86/dell/dell-wmi-ddv.c index e75cd6e1efe6..67f3d7158403 100644 --- a/drivers/platform/x86/dell/dell-wmi-ddv.c +++ b/drivers/platform/x86/dell/dell-wmi-ddv.c @@ -8,6 +8,7 @@ #define pr_format(fmt) KBUILD_MODNAME ": " fmt #include <linux/acpi.h> +#include <linux/bitfield.h> #include <linux/debugfs.h> #include <linux/device.h> #include <linux/device/driver.h> @@ -39,6 +40,33 @@ #define DELL_DDV_SUPPORTED_VERSION_MAX 3 #define DELL_DDV_GUID "8A42EA14-4F2A-FD45-6422-0087F7A7E608" +/* Battery indices 1, 2 and 3 */ +#define DELL_DDV_NUM_BATTERIES 3 + +#define SBS_MANUFACTURE_YEAR_MASK GENMASK(15, 9) +#define SBS_MANUFACTURE_MONTH_MASK GENMASK(8, 5) +#define SBS_MANUFACTURE_DAY_MASK GENMASK(4, 0) + +#define MA_FAILURE_MODE_MASK GENMASK(11, 8) +#define MA_FAILURE_MODE_PERMANENT 0x9 +#define MA_FAILURE_MODE_OVERHEAT 0xA +#define MA_FAILURE_MODE_OVERCURRENT 0xB + +#define MA_PERMANENT_FAILURE_CODE_MASK GENMASK(13, 12) +#define MA_PERMANENT_FAILURE_FUSE_BLOWN 0x0 +#define MA_PERMANENT_FAILURE_CELL_IMBALANCE 0x1 +#define MA_PERMANENT_FAILURE_OVERVOLTAGE 0x2 +#define MA_PERMANENT_FAILURE_FET_FAILURE 0x3 + +#define MA_OVERHEAT_FAILURE_CODE_MASK GENMASK(15, 12) +#define MA_OVERHEAT_FAILURE_START 0x5 +#define MA_OVERHEAT_FAILURE_CHARGING 0x7 +#define MA_OVERHEAT_FAILURE_DISCHARGING 0x8 + +#define MA_OVERCURRENT_FAILURE_CODE_MASK GENMASK(15, 12) +#define MA_OVERCURRENT_FAILURE_CHARGING 0x6 +#define MA_OVERCURRENT_FAILURE_DISCHARGING 0xB + #define DELL_EPPID_LENGTH 20 #define DELL_EPPID_EXT_LENGTH 23 @@ -104,8 +132,9 @@ struct dell_wmi_ddv_sensors { struct dell_wmi_ddv_data { struct acpi_battery_hook hook; - struct device_attribute temp_attr; struct device_attribute eppid_attr; + struct mutex translation_cache_lock; /* Protects the translation cache */ + struct power_supply *translation_cache[DELL_DDV_NUM_BATTERIES]; struct dell_wmi_ddv_sensors fans; struct dell_wmi_ddv_sensors temps; struct wmi_device *wdev; @@ -640,33 +669,78 @@ err_release: return ret; } -static int dell_wmi_ddv_battery_index(struct acpi_device *acpi_dev, u32 *index) +static int dell_wmi_ddv_battery_translate(struct dell_wmi_ddv_data *data, + struct power_supply *battery, u32 *index) { - const char *uid_str; + u32 serial_dec, serial_hex, serial; + union power_supply_propval val; + int ret; - uid_str = acpi_device_uid(acpi_dev); - if (!uid_str) - return -ENODEV; + guard(mutex)(&data->translation_cache_lock); - return kstrtou32(uid_str, 10, index); -} + for (int i = 0; i < ARRAY_SIZE(data->translation_cache); i++) { + if (data->translation_cache[i] == battery) { + dev_dbg(&data->wdev->dev, "Translation cache hit for battery index %u\n", + i + 1); + *index = i + 1; + return 0; + } + } -static ssize_t temp_show(struct device *dev, struct device_attribute *attr, char *buf) -{ - struct dell_wmi_ddv_data *data = container_of(attr, struct dell_wmi_ddv_data, temp_attr); - u32 index, value; - int ret; + dev_dbg(&data->wdev->dev, "Translation cache miss\n"); - ret = dell_wmi_ddv_battery_index(to_acpi_device(dev->parent), &index); + /* Perform a translation between a ACPI battery and a battery index */ + + ret = power_supply_get_property(battery, POWER_SUPPLY_PROP_SERIAL_NUMBER, &val); if (ret < 0) return ret; - ret = dell_wmi_ddv_query_integer(data->wdev, DELL_DDV_BATTERY_TEMPERATURE, index, &value); + /* + * Some devices display the serial number of the ACPI battery (string!) as a decimal + * number while other devices display it as a hexadecimal number. Because of this we + * have to check both cases. + */ + ret = kstrtou32(val.strval, 16, &serial_hex); if (ret < 0) - return ret; + return ret; /* Should never fail */ + + ret = kstrtou32(val.strval, 10, &serial_dec); + if (ret < 0) + serial_dec = 0; /* Can fail, thus we only mark serial_dec as invalid */ + + for (int i = 0; i < ARRAY_SIZE(data->translation_cache); i++) { + ret = dell_wmi_ddv_query_integer(data->wdev, DELL_DDV_BATTERY_SERIAL_NUMBER, i + 1, + &serial); + if (ret < 0) + return ret; + + /* A serial number of 0 signals that this index is not associated with a battery */ + if (!serial) + continue; + + if (serial == serial_dec || serial == serial_hex) { + dev_dbg(&data->wdev->dev, "Translation cache update for battery index %u\n", + i + 1); + data->translation_cache[i] = battery; + *index = i + 1; + return 0; + } + } + + return -ENODEV; +} + +static void dell_wmi_battery_invalidate(struct dell_wmi_ddv_data *data, + struct power_supply *battery) +{ + guard(mutex)(&data->translation_cache_lock); - /* Use 2731 instead of 2731.5 to avoid unnecessary rounding */ - return sysfs_emit(buf, "%d\n", value - 2731); + for (int i = 0; i < ARRAY_SIZE(data->translation_cache); i++) { + if (data->translation_cache[i] == battery) { + data->translation_cache[i] = NULL; + return; + } + } } static ssize_t eppid_show(struct device *dev, struct device_attribute *attr, char *buf) @@ -676,7 +750,7 @@ static ssize_t eppid_show(struct device *dev, struct device_attribute *attr, cha u32 index; int ret; - ret = dell_wmi_ddv_battery_index(to_acpi_device(dev->parent), &index); + ret = dell_wmi_ddv_battery_translate(data, to_power_supply(dev), &index); if (ret < 0) return ret; @@ -695,24 +769,184 @@ static ssize_t eppid_show(struct device *dev, struct device_attribute *attr, cha return ret; } -static int dell_wmi_ddv_add_battery(struct power_supply *battery, struct acpi_battery_hook *hook) +static int dell_wmi_ddv_get_health(struct dell_wmi_ddv_data *data, u32 index, + union power_supply_propval *val) { - struct dell_wmi_ddv_data *data = container_of(hook, struct dell_wmi_ddv_data, hook); - u32 index; + u32 value, code; + int ret; + + ret = dell_wmi_ddv_query_integer(data->wdev, DELL_DDV_BATTERY_MANUFACTURER_ACCESS, index, + &value); + if (ret < 0) + return ret; + + switch (FIELD_GET(MA_FAILURE_MODE_MASK, value)) { + case MA_FAILURE_MODE_PERMANENT: + code = FIELD_GET(MA_PERMANENT_FAILURE_CODE_MASK, value); + switch (code) { + case MA_PERMANENT_FAILURE_FUSE_BLOWN: + val->intval = POWER_SUPPLY_HEALTH_BLOWN_FUSE; + return 0; + case MA_PERMANENT_FAILURE_CELL_IMBALANCE: + val->intval = POWER_SUPPLY_HEALTH_CELL_IMBALANCE; + return 0; + case MA_PERMANENT_FAILURE_OVERVOLTAGE: + val->intval = POWER_SUPPLY_HEALTH_OVERVOLTAGE; + return 0; + case MA_PERMANENT_FAILURE_FET_FAILURE: + val->intval = POWER_SUPPLY_HEALTH_DEAD; + return 0; + default: + dev_notice_once(&data->wdev->dev, "Unknown permanent failure code %u\n", + code); + val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + return 0; + } + case MA_FAILURE_MODE_OVERHEAT: + code = FIELD_GET(MA_OVERHEAT_FAILURE_CODE_MASK, value); + switch (code) { + case MA_OVERHEAT_FAILURE_START: + case MA_OVERHEAT_FAILURE_CHARGING: + case MA_OVERHEAT_FAILURE_DISCHARGING: + val->intval = POWER_SUPPLY_HEALTH_OVERHEAT; + return 0; + default: + dev_notice_once(&data->wdev->dev, "Unknown overheat failure code %u\n", + code); + val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + return 0; + } + case MA_FAILURE_MODE_OVERCURRENT: + code = FIELD_GET(MA_OVERCURRENT_FAILURE_CODE_MASK, value); + switch (code) { + case MA_OVERCURRENT_FAILURE_CHARGING: + case MA_OVERCURRENT_FAILURE_DISCHARGING: + val->intval = POWER_SUPPLY_HEALTH_OVERCURRENT; + return 0; + default: + dev_notice_once(&data->wdev->dev, "Unknown overcurrent failure code %u\n", + code); + val->intval = POWER_SUPPLY_HEALTH_UNSPEC_FAILURE; + return 0; + } + default: + val->intval = POWER_SUPPLY_HEALTH_GOOD; + return 0; + } +} + +static int dell_wmi_ddv_get_manufacture_date(struct dell_wmi_ddv_data *data, u32 index, + enum power_supply_property psp, + union power_supply_propval *val) +{ + u16 year, month, day; + u32 value; int ret; - /* Return 0 instead of error to avoid being unloaded */ - ret = dell_wmi_ddv_battery_index(to_acpi_device(battery->dev.parent), &index); + ret = dell_wmi_ddv_query_integer(data->wdev, DELL_DDV_BATTERY_MANUFACTURE_DATE, + index, &value); if (ret < 0) + return ret; + if (value > U16_MAX) + return -ENXIO; + + /* + * Some devices report a invalid manufacture date value + * like 0.0.1980. Because of this we have to check the + * whole value before exposing parts of it to user space. + */ + year = FIELD_GET(SBS_MANUFACTURE_YEAR_MASK, value) + 1980; + month = FIELD_GET(SBS_MANUFACTURE_MONTH_MASK, value); + if (month < 1 || month > 12) + return -ENODATA; + + day = FIELD_GET(SBS_MANUFACTURE_DAY_MASK, value); + if (day < 1 || day > 31) + return -ENODATA; + + switch (psp) { + case POWER_SUPPLY_PROP_MANUFACTURE_YEAR: + val->intval = year; return 0; + case POWER_SUPPLY_PROP_MANUFACTURE_MONTH: + val->intval = month; + return 0; + case POWER_SUPPLY_PROP_MANUFACTURE_DAY: + val->intval = day; + return 0; + default: + return -EINVAL; + } +} - ret = device_create_file(&battery->dev, &data->temp_attr); +static int dell_wmi_ddv_get_property(struct power_supply *psy, const struct power_supply_ext *ext, + void *drvdata, enum power_supply_property psp, + union power_supply_propval *val) +{ + struct dell_wmi_ddv_data *data = drvdata; + u32 index, value; + int ret; + + ret = dell_wmi_ddv_battery_translate(data, psy, &index); if (ret < 0) return ret; + switch (psp) { + case POWER_SUPPLY_PROP_HEALTH: + return dell_wmi_ddv_get_health(data, index, val); + case POWER_SUPPLY_PROP_TEMP: + ret = dell_wmi_ddv_query_integer(data->wdev, DELL_DDV_BATTERY_TEMPERATURE, index, + &value); + if (ret < 0) + return ret; + + /* Use 2732 instead of 2731.5 to avoid unnecessary rounding and to emulate + * the behaviour of the OEM application which seems to round down the result. + */ + val->intval = value - 2732; + return 0; + case POWER_SUPPLY_PROP_MANUFACTURE_YEAR: + case POWER_SUPPLY_PROP_MANUFACTURE_MONTH: + case POWER_SUPPLY_PROP_MANUFACTURE_DAY: + return dell_wmi_ddv_get_manufacture_date(data, index, psp, val); + default: + return -EINVAL; + } +} + +static const enum power_supply_property dell_wmi_ddv_properties[] = { + POWER_SUPPLY_PROP_HEALTH, + POWER_SUPPLY_PROP_TEMP, + POWER_SUPPLY_PROP_MANUFACTURE_YEAR, + POWER_SUPPLY_PROP_MANUFACTURE_MONTH, + POWER_SUPPLY_PROP_MANUFACTURE_DAY, +}; + +static const struct power_supply_ext dell_wmi_ddv_extension = { + .name = DRIVER_NAME, + .properties = dell_wmi_ddv_properties, + .num_properties = ARRAY_SIZE(dell_wmi_ddv_properties), + .get_property = dell_wmi_ddv_get_property, +}; + +static int dell_wmi_ddv_add_battery(struct power_supply *battery, struct acpi_battery_hook *hook) +{ + struct dell_wmi_ddv_data *data = container_of(hook, struct dell_wmi_ddv_data, hook); + int ret; + + /* + * We cannot do the battery matching here since the battery might be absent, preventing + * us from reading the serial number. + */ + ret = device_create_file(&battery->dev, &data->eppid_attr); + if (ret < 0) + return ret; + + ret = power_supply_register_extension(battery, &dell_wmi_ddv_extension, &data->wdev->dev, + data); if (ret < 0) { - device_remove_file(&battery->dev, &data->temp_attr); + device_remove_file(&battery->dev, &data->eppid_attr); return ret; } @@ -724,38 +958,32 @@ static int dell_wmi_ddv_remove_battery(struct power_supply *battery, struct acpi { struct dell_wmi_ddv_data *data = container_of(hook, struct dell_wmi_ddv_data, hook); - device_remove_file(&battery->dev, &data->temp_attr); device_remove_file(&battery->dev, &data->eppid_attr); + power_supply_unregister_extension(battery, &dell_wmi_ddv_extension); + + dell_wmi_battery_invalidate(data, battery); return 0; } -static void dell_wmi_ddv_battery_remove(void *data) +static int dell_wmi_ddv_battery_add(struct dell_wmi_ddv_data *data) { - struct acpi_battery_hook *hook = data; + int ret; - battery_hook_unregister(hook); -} + ret = devm_mutex_init(&data->wdev->dev, &data->translation_cache_lock); + if (ret < 0) + return ret; -static int dell_wmi_ddv_battery_add(struct dell_wmi_ddv_data *data) -{ data->hook.name = "Dell DDV Battery Extension"; data->hook.add_battery = dell_wmi_ddv_add_battery; data->hook.remove_battery = dell_wmi_ddv_remove_battery; - sysfs_attr_init(&data->temp_attr.attr); - data->temp_attr.attr.name = "temp"; - data->temp_attr.attr.mode = 0444; - data->temp_attr.show = temp_show; - sysfs_attr_init(&data->eppid_attr.attr); data->eppid_attr.attr.name = "eppid"; data->eppid_attr.attr.mode = 0444; data->eppid_attr.show = eppid_show; - battery_hook_register(&data->hook); - - return devm_add_action_or_reset(&data->wdev->dev, dell_wmi_ddv_battery_remove, &data->hook); + return devm_battery_hook_register(&data->wdev->dev, &data->hook); } static int dell_wmi_ddv_buffer_read(struct seq_file *seq, enum dell_ddv_method method) diff --git a/drivers/platform/x86/dell/dell-wmi-sysman/Makefile b/drivers/platform/x86/dell/dell-wmi-sysman/Makefile index 825fb2fbeea8..0a6df449e222 100644 --- a/drivers/platform/x86/dell/dell-wmi-sysman/Makefile +++ b/drivers/platform/x86/dell/dell-wmi-sysman/Makefile @@ -1,5 +1,5 @@ obj-$(CONFIG_DELL_WMI_SYSMAN) += dell-wmi-sysman.o -dell-wmi-sysman-objs := sysman.o \ +dell-wmi-sysman-y := sysman.o \ enum-attributes.o \ int-attributes.o \ string-attributes.o \ diff --git a/drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c b/drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c index 230e6ee96636..d8f1bf5e58a0 100644 --- a/drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c +++ b/drivers/platform/x86/dell/dell-wmi-sysman/passobj-attributes.c @@ -45,7 +45,7 @@ static ssize_t current_password_store(struct kobject *kobj, int length; length = strlen(buf); - if (buf[length-1] == '\n') + if (length && buf[length - 1] == '\n') length--; /* firmware does verifiation of min/max password length, |