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[181.12.202.95]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-2e20b12e245sm8057665a91.52.2024.10.08.12.54.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 08 Oct 2024 12:54:30 -0700 (PDT) From: Kurt Borja To: kuurtb@gmail.com Cc: hdegoede@redhat.com, ilpo.jarvinen@linux.intel.com, linux-kernel@vger.kernel.org, platform-driver-x86@vger.kernel.org, Dell.Client.Kernel@dell.com Subject: [PATCH] alienware-wmi: Dell AWCC platform_profile support Date: Tue, 8 Oct 2024 16:37:48 -0300 Message-ID: <20241008193746.35318-3-kuurtb@gmail.com> X-Mailer: git-send-email 2.46.2 In-Reply-To: <20241007093324.49631-3-kuurtb@gmail.com> References: <20241007093324.49631-3-kuurtb@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" This patch adds platform_profile support for Dell devices which implement User Selectable Thermal Tables (USTT) that are meant to be controlled by Alienware Command Center (AWCC). These devices may include newer Alienware M-Series, Alienware X-Series and Dell's G-Series. This patch, was tested by me on an Alienware x15 R1. It is suspected that Alienware Command Center manages thermal profiles through the WMI interface, specifically through a device with identifier \_SB_.AMW1.WMAX. This device was reverse engineered and the relevant functionality is documented here [1]. This driver interacts with this WMI device and thus is able to mimic AWCC's thermal profiles functionality through the platform_profile API. In consequence the user would be able to set and retrieve thermal profiles, which are just fan speed profiles. This driver was heavily inspired on inspur_platform_profile, special thanks. Notes: - Performance (FullSpeed) profile is a special profile which has it's own entry in the Firmware Settings of the Alienware x15 R1. It also changes the color of the F1 key. I suspect this behavior would be replicated in other X-Series or M-Series laptops. - G-Mode is a profile documented on [1] which mimics the behavior of FullSpeed mode but it does not have an entry on the Firmware Settings of the Alienware x15 R1, this may correspond to the G-Mode functionality on G-Series laptops (activated by a special button) but I cannot test it. I did not include this code in the driver as G-Mode causes unexpected behavior on X-Series laptops. Signed-off-by: Kurt Borja --- v3: - Removed extra empty line - 0x0B named WMAX_ARG_GET_CURRENT_PROF - Removed casts to the same type on functions added in this patch - Thermal profile to WMAX argument is now an static function and makes use of in-built kernel macros - Platform profile is now removed only if it was created first - create_platform_profile is now create_thermal_profile to avoid confusion - profile_get and profile_set functions renamed too to match the above v2: - Moved functionality to alienware-wmi driver - Added thermal and gmode quirks to add support based on dmi match - Performance profile is now GMODE for devices that support it - alienware_wmax_command now is insize agnostic to support new thermal methods --- drivers/platform/x86/dell/Kconfig | 1 + drivers/platform/x86/dell/alienware-wmi.c | 238 ++++++++++++++++++++-- 2 files changed, 226 insertions(+), 13 deletions(-) diff --git a/drivers/platform/x86/dell/Kconfig b/drivers/platform/x86/dell/= Kconfig index 68a49788a..b06d634cd 100644 --- a/drivers/platform/x86/dell/Kconfig +++ b/drivers/platform/x86/dell/Kconfig @@ -21,6 +21,7 @@ config ALIENWARE_WMI depends on LEDS_CLASS depends on NEW_LEDS depends on ACPI_WMI + select ACPI_PLATFORM_PROFILE help This is a driver for controlling Alienware BIOS driven features. It exposes an interface for controlling the AlienFX diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x= 86/dell/alienware-wmi.c index f5ee62ce1..e3ef4b10b 100644 --- a/drivers/platform/x86/dell/alienware-wmi.c +++ b/drivers/platform/x86/dell/alienware-wmi.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include =20 @@ -25,6 +26,10 @@ #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_ARG_GET_CURRENT_PROF 0x0B =20 MODULE_AUTHOR("Mario Limonciello "); MODULE_DESCRIPTION("Alienware special feature control"); @@ -49,11 +54,22 @@ enum WMAX_CONTROL_STATES { WMAX_SUSPEND =3D 3, }; =20 +enum WMAX_THERMAL_PROFILE { + WMAX_THERMAL_QUIET =3D 0xA3, + WMAX_THERMAL_BALANCED =3D 0xA0, + WMAX_THERMAL_BALANCED_PERFORMANCE =3D 0xA1, + WMAX_THERMAL_PERFORMANCE =3D 0xA4, + WMAX_THERMAL_GMODE =3D 0xAB, + WMAX_THERMAL_LOW_POWER =3D 0xA5, +}; + struct quirk_entry { u8 num_zones; u8 hdmi_mux; u8 amplifier; u8 deepslp; + u8 thermal; + u8 gmode; }; =20 static struct quirk_entry *quirks; @@ -64,6 +80,8 @@ static struct quirk_entry quirk_inspiron5675 =3D { .hdmi_mux =3D 0, .amplifier =3D 0, .deepslp =3D 0, + .thermal =3D 0, + .gmode =3D 0, }; =20 static struct quirk_entry quirk_unknown =3D { @@ -71,6 +89,8 @@ static struct quirk_entry quirk_unknown =3D { .hdmi_mux =3D 0, .amplifier =3D 0, .deepslp =3D 0, + .thermal =3D 0, + .gmode =3D 0, }; =20 static struct quirk_entry quirk_x51_r1_r2 =3D { @@ -78,6 +98,8 @@ static struct quirk_entry quirk_x51_r1_r2 =3D { .hdmi_mux =3D 0, .amplifier =3D 0, .deepslp =3D 0, + .thermal =3D 0, + .gmode =3D 0, }; =20 static struct quirk_entry quirk_x51_r3 =3D { @@ -85,6 +107,8 @@ static struct quirk_entry quirk_x51_r3 =3D { .hdmi_mux =3D 0, .amplifier =3D 1, .deepslp =3D 0, + .thermal =3D 0, + .gmode =3D 0, }; =20 static struct quirk_entry quirk_asm100 =3D { @@ -92,6 +116,8 @@ static struct quirk_entry quirk_asm100 =3D { .hdmi_mux =3D 1, .amplifier =3D 0, .deepslp =3D 0, + .thermal =3D 0, + .gmode =3D 0, }; =20 static struct quirk_entry quirk_asm200 =3D { @@ -99,6 +125,8 @@ static struct quirk_entry quirk_asm200 =3D { .hdmi_mux =3D 1, .amplifier =3D 0, .deepslp =3D 1, + .thermal =3D 0, + .gmode =3D 0, }; =20 static struct quirk_entry quirk_asm201 =3D { @@ -106,6 +134,17 @@ static struct quirk_entry quirk_asm201 =3D { .hdmi_mux =3D 1, .amplifier =3D 1, .deepslp =3D 1, + .thermal =3D 0, + .gmode =3D 0, +}; + +static struct quirk_entry quirk_x15_r1 =3D { + .num_zones =3D 2, + .hdmi_mux =3D 0, + .amplifier =3D 0, + .deepslp =3D 0, + .thermal =3D 1, + .gmode =3D 0, }; =20 static int __init dmi_matched(const struct dmi_system_id *dmi) @@ -169,6 +208,15 @@ static const struct dmi_system_id alienware_quirks[] _= _initconst =3D { }, .driver_data =3D &quirk_asm201, }, + { + .callback =3D dmi_matched, + .ident =3D "Alienware x15 R1", + .matches =3D { + DMI_MATCH(DMI_SYS_VENDOR, "Alienware"), + DMI_MATCH(DMI_PRODUCT_NAME, "Alienware x15 R1") + }, + .driver_data =3D &quirk_x15_r1, + }, { .callback =3D dmi_matched, .ident =3D "Dell Inc. Inspiron 5675", @@ -218,6 +266,7 @@ static struct platform_device *platform_device; static struct device_attribute *zone_dev_attrs; static struct attribute **zone_attrs; static struct platform_zone *zone_data; +static struct platform_profile_handler pp_handler; =20 static struct platform_driver platform_driver =3D { .driver =3D { @@ -500,7 +549,7 @@ static void alienware_zone_exit(struct platform_device = *dev) kfree(zone_attrs); } =20 -static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args, +static acpi_status alienware_wmax_command(void *in_args, size_t insize, u32 command, int *out_data) { acpi_status status; @@ -508,7 +557,7 @@ static acpi_status alienware_wmax_command(struct wmax_b= asic_args *in_args, struct acpi_buffer input; struct acpi_buffer output; =20 - input.length =3D (acpi_size) sizeof(*in_args); + input.length =3D (acpi_size) insize; input.pointer =3D in_args; if (out_data) { output.length =3D ACPI_ALLOCATE_BUFFER; @@ -541,8 +590,8 @@ static ssize_t show_hdmi_cable(struct device *dev, .arg =3D 0, }; status =3D - alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_CABLE, - (u32 *) &out_data); + alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_HDMI_CABLE, (u32 *) &out_data); if (ACPI_SUCCESS(status)) { if (out_data =3D=3D 0) return sysfs_emit(buf, "[unconnected] connected unknown\n"); @@ -562,8 +611,8 @@ static ssize_t show_hdmi_source(struct device *dev, .arg =3D 0, }; status =3D - alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_STATUS, - (u32 *) &out_data); + alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_HDMI_STATUS, (u32 *) &out_data); =20 if (ACPI_SUCCESS(status)) { if (out_data =3D=3D 1) @@ -589,7 +638,8 @@ static ssize_t toggle_hdmi_source(struct device *dev, args.arg =3D 3; pr_debug("alienware-wmi: setting hdmi to %d : %s", args.arg, buf); =20 - status =3D alienware_wmax_command(&args, WMAX_METHOD_HDMI_SOURCE, NULL); + status =3D alienware_wmax_command(&args, sizeof(args), + WMAX_METHOD_HDMI_SOURCE, NULL); =20 if (ACPI_FAILURE(status)) pr_err("alienware-wmi: HDMI toggle failed: results: %u\n", @@ -642,8 +692,8 @@ static ssize_t show_amplifier_status(struct device *dev, .arg =3D 0, }; status =3D - alienware_wmax_command(&in_args, WMAX_METHOD_AMPLIFIER_CABLE, - (u32 *) &out_data); + alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_AMPLIFIER_CABLE, (u32 *) &out_data); if (ACPI_SUCCESS(status)) { if (out_data =3D=3D 0) return sysfs_emit(buf, "[unconnected] connected unknown\n"); @@ -694,8 +744,8 @@ static ssize_t show_deepsleep_status(struct device *dev, struct wmax_basic_args in_args =3D { .arg =3D 0, }; - status =3D alienware_wmax_command(&in_args, WMAX_METHOD_DEEP_SLEEP_STATUS, - (u32 *) &out_data); + status =3D alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_DEEP_SLEEP_STATUS, (u32 *) &out_data); if (ACPI_SUCCESS(status)) { if (out_data =3D=3D 0) return sysfs_emit(buf, "[disabled] s5 s5_s4\n"); @@ -723,8 +773,8 @@ static ssize_t toggle_deepsleep(struct device *dev, args.arg =3D 2; pr_debug("alienware-wmi: setting deep sleep to %d : %s", args.arg, buf); =20 - status =3D alienware_wmax_command(&args, WMAX_METHOD_DEEP_SLEEP_CONTROL, - NULL); + status =3D alienware_wmax_command(&args, sizeof(args), + WMAX_METHOD_DEEP_SLEEP_CONTROL, NULL); =20 if (ACPI_FAILURE(status)) pr_err("alienware-wmi: deep sleep control failed: results: %u\n", @@ -760,6 +810,160 @@ static int create_deepsleep(struct platform_device *d= ev) return ret; } =20 +/* + * Thermal Profile control + * - Provides thermal profile control through the Platform Profile API + */ +#define PROFILE_MASK GENMASK(15,8) +#define PROFILE_ACTIVATE BIT(0) + +static u32 profile_to_wmax_arg(enum WMAX_THERMAL_PROFILE prof) +{ + return FIELD_PREP(PROFILE_MASK, prof) | PROFILE_ACTIVATE; +} + +static int thermal_profile_get(struct platform_profile_handler *pprof, + enum platform_profile_option *profile) +{ + acpi_status status; + u32 in_args =3D WMAX_ARG_GET_CURRENT_PROF; + u32 out_data; + + status =3D alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_INFORMATION, &out_data); + + if (ACPI_FAILURE(status)) + return -EOPNOTSUPP; + + if (out_data =3D=3D 0xFFFFFFFF) + return -EBADRQC; + + switch (out_data) { + case WMAX_THERMAL_LOW_POWER: + *profile =3D PLATFORM_PROFILE_LOW_POWER; + break; + case WMAX_THERMAL_QUIET: + *profile =3D PLATFORM_PROFILE_QUIET; + break; + case WMAX_THERMAL_BALANCED: + *profile =3D PLATFORM_PROFILE_BALANCED; + break; + case WMAX_THERMAL_BALANCED_PERFORMANCE: + *profile =3D PLATFORM_PROFILE_BALANCED_PERFORMANCE; + break; + case WMAX_THERMAL_PERFORMANCE: + case WMAX_THERMAL_GMODE: + *profile =3D PLATFORM_PROFILE_PERFORMANCE; + break; + default: + return -ENODATA; + } + + return 0; +} + +static int thermal_profile_set(struct platform_profile_handler *pprof, + enum platform_profile_option profile) +{ + acpi_status status; + u32 in_args; + u32 out_data; + + switch (profile) { + case PLATFORM_PROFILE_LOW_POWER: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_LOW_POWER); + break; + case PLATFORM_PROFILE_QUIET: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_QUIET); + break; + case PLATFORM_PROFILE_BALANCED: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_BALANCED); + break; + case PLATFORM_PROFILE_BALANCED_PERFORMANCE: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_BALANCED_PERFORMANCE); + break; + case PLATFORM_PROFILE_PERFORMANCE: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_PERFORMANCE); + break; + default: + return -EOPNOTSUPP; + } + + status =3D alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_CONTROL, &out_data); + + if (ACPI_FAILURE(status)) + return -EOPNOTSUPP; + + if (out_data =3D=3D 0xFFFFFFFF) + return -EBADRQC; + + return 0; +} + +static int gmode_thermal_profile_set(struct platform_profile_handler *ppro= f, + enum platform_profile_option profile) +{ + acpi_status status; + u32 in_args; + u32 out_data; + + switch (profile) { + case PLATFORM_PROFILE_LOW_POWER: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_LOW_POWER); + break; + case PLATFORM_PROFILE_QUIET: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_QUIET); + break; + case PLATFORM_PROFILE_BALANCED: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_BALANCED); + break; + case PLATFORM_PROFILE_BALANCED_PERFORMANCE: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_BALANCED_PERFORMANCE); + break; + case PLATFORM_PROFILE_PERFORMANCE: + in_args =3D profile_to_wmax_arg(WMAX_THERMAL_GMODE); + break; + default: + return -EOPNOTSUPP; + } + + status =3D alienware_wmax_command(&in_args, sizeof(in_args), + WMAX_METHOD_THERMAL_CONTROL, &out_data); + + if (ACPI_FAILURE(status)) + return -EOPNOTSUPP; + + if (out_data =3D=3D 0xFFFFFFFF) + return -EBADRQC; + + return 0; +} + +static int create_thermal_profile(void) +{ + pp_handler.profile_get =3D thermal_profile_get; + + if (quirks->gmode > 0) + pp_handler.profile_set =3D gmode_thermal_profile_set; + else + pp_handler.profile_set =3D thermal_profile_set; + + set_bit(PLATFORM_PROFILE_LOW_POWER, pp_handler.choices); + set_bit(PLATFORM_PROFILE_QUIET, pp_handler.choices); + set_bit(PLATFORM_PROFILE_BALANCED, pp_handler.choices); + set_bit(PLATFORM_PROFILE_BALANCED_PERFORMANCE, pp_handler.choices); + set_bit(PLATFORM_PROFILE_PERFORMANCE, pp_handler.choices); + + return platform_profile_register(&pp_handler); +} + +static void remove_thermal_profile(void) +{ + if (quirks->thermal > 0) + platform_profile_remove(); +} + static int __init alienware_wmi_init(void) { int ret; @@ -807,6 +1011,12 @@ static int __init alienware_wmi_init(void) goto fail_prep_deepsleep; } =20 + if (quirks->thermal > 0) { + ret =3D create_thermal_profile(); + if (ret) + goto fail_prep_thermal_profile; + } + ret =3D alienware_zone_init(platform_device); if (ret) goto fail_prep_zones; @@ -817,6 +1027,7 @@ static int __init alienware_wmi_init(void) alienware_zone_exit(platform_device); fail_prep_deepsleep: fail_prep_amplifier: +fail_prep_thermal_profile: fail_prep_hdmi: platform_device_del(platform_device); fail_platform_device2: @@ -834,6 +1045,7 @@ static void __exit alienware_wmi_exit(void) if (platform_device) { alienware_zone_exit(platform_device); remove_hdmi(platform_device); + remove_thermal_profile(); platform_device_unregister(platform_device); platform_driver_unregister(&platform_driver); } --=20 2.46.2