Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted

Pull networking updates from Jakub Kicinski:
 "Core:

   - Add dedicated kmem_cache for typical/small skb->head, avoid having
     to access struct page at kfree time, and improve memory use.

   - Introduce sysctl to set default RPS configuration for new netdevs.

   - Define Netlink protocol specification format which can be used to
     describe messages used by each family and auto-generate parsers.
     Add tools for generating kernel data structures and uAPI headers.

   - Expose all net/core sysctls inside netns.

   - Remove 4s sleep in netpoll if carrier is instantly detected on
     boot.

   - Add configurable limit of MDB entries per port, and port-vlan.

   - Continue populating drop reasons throughout the stack.

   - Retire a handful of legacy Qdiscs and classifiers.

  Protocols:

   - Support IPv4 big TCP (TSO frames larger than 64kB).

   - Add IP_LOCAL_PORT_RANGE socket option, to control local port range
     on socket by socket basis.

   - Track and report in procfs number of MPTCP sockets used.

   - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path
     manager.

   - IPv6: don't check net.ipv6.route.max_size and rely on garbage
     collection to free memory (similarly to IPv4).

   - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986).

   - ICMP: add per-rate limit counters.

   - Add support for user scanning requests in ieee802154.

   - Remove static WEP support.

   - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate
     reporting.

   - WiFi 7 EHT channel puncturing support (client & AP).

  BPF:

   - Add a rbtree data structure following the "next-gen data structure"
     precedent set by recently added linked list, that is, by using
     kfunc + kptr instead of adding a new BPF map type.

   - Expose XDP hints via kfuncs with initial support for RX hash and
     timestamp metadata.

   - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to
     better support decap on GRE tunnel devices not operating in collect
     metadata.

   - Improve x86 JIT's codegen for PROBE_MEM runtime error checks.

   - Remove the need for trace_printk_lock for bpf_trace_printk and
     bpf_trace_vprintk helpers.

   - Extend libbpf's bpf_tracing.h support for tracing arguments of
     kprobes/uprobes and syscall as a special case.

   - Significantly reduce the search time for module symbols by
     livepatch and BPF.

   - Enable cpumasks to be used as kptrs, which is useful for tracing
     programs tracking which tasks end up running on which CPUs in
     different time intervals.

   - Add support for BPF trampoline on s390x and riscv64.

   - Add capability to export the XDP features supported by the NIC.

   - Add __bpf_kfunc tag for marking kernel functions as kfuncs.

   - Add cgroup.memory=nobpf kernel parameter option to disable BPF
     memory accounting for container environments.

  Netfilter:

   - Remove the CLUSTERIP target. It has been marked as obsolete for
     years, and we still have WARN splats wrt races of the out-of-band
     /proc interface installed by this target.

   - Add 'destroy' commands to nf_tables. They are identical to the
     existing 'delete' commands, but do not return an error if the
     referenced object (set, chain, rule...) did not exist.

  Driver API:

   - Improve cpumask_local_spread() locality to help NICs set the right
     IRQ affinity on AMD platforms.

   - Separate C22 and C45 MDIO bus transactions more clearly.

   - Introduce new DCB table to control DSCP rewrite on egress.

   - Support configuration of Physical Layer Collision Avoidance (PLCA)
     Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of
     shared medium Ethernet.

   - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing
     preemption of low priority frames by high priority frames.

   - Add support for controlling MACSec offload using netlink SET.

   - Rework devlink instance refcounts to allow registration and
     de-registration under the instance lock. Split the code into
     multiple files, drop some of the unnecessarily granular locks and
     factor out common parts of netlink operation handling.

   - Add TX frame aggregation parameters (for USB drivers).

   - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning
     messages with notifications for debug.

   - Allow offloading of UDP NEW connections via act_ct.

   - Add support for per action HW stats in TC.

   - Support hardware miss to TC action (continue processing in SW from
     a specific point in the action chain).

   - Warn if old Wireless Extension user space interface is used with
     modern cfg80211/mac80211 drivers. Do not support Wireless
     Extensions for Wi-Fi 7 devices at all. Everyone should switch to
     using nl80211 interface instead.

   - Improve the CAN bit timing configuration. Use extack to return
     error messages directly to user space, update the SJW handling,
     including the definition of a new default value that will benefit
     CAN-FD controllers, by increasing their oscillator tolerance.

  New hardware / drivers:

   - Ethernet:
      - nVidia BlueField-3 support (control traffic driver)
      - Ethernet support for imx93 SoCs
      - Motorcomm yt8531 gigabit Ethernet PHY
      - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA)
      - Microchip LAN8841 PHY (incl. cable diagnostics and PTP)
      - Amlogic gxl MDIO mux

   - WiFi:
      - RealTek RTL8188EU (rtl8xxxu)
      - Qualcomm Wi-Fi 7 devices (ath12k)

   - CAN:
      - Renesas R-Car V4H

  Drivers:

   - Bluetooth:
      - Set Per Platform Antenna Gain (PPAG) for Intel controllers.

   - Ethernet NICs:
      - Intel (1G, igc):
         - support TSN / Qbv / packet scheduling features of i226 model
      - Intel (100G, ice):
         - use GNSS subsystem instead of TTY
         - multi-buffer XDP support
         - extend support for GPIO pins to E823 devices
      - nVidia/Mellanox:
         - update the shared buffer configuration on PFC commands
         - implement PTP adjphase function for HW offset control
         - TC support for Geneve and GRE with VF tunnel offload
         - more efficient crypto key management method
         - multi-port eswitch support
      - Netronome/Corigine:
         - add DCB IEEE support
         - support IPsec offloading for NFP3800
      - Freescale/NXP (enetc):
         - support XDP_REDIRECT for XDP non-linear buffers
         - improve reconfig, avoid link flap and waiting for idle
         - support MAC Merge layer
      - Other NICs:
         - sfc/ef100: add basic devlink support for ef100
         - ionic: rx_push mode operation (writing descriptors via MMIO)
         - bnxt: use the auxiliary bus abstraction for RDMA
         - r8169: disable ASPM and reset bus in case of tx timeout
         - cpsw: support QSGMII mode for J721e CPSW9G
         - cpts: support pulse-per-second output
         - ngbe: add an mdio bus driver
         - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing
         - r8152: handle devices with FW with NCM support
         - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation
         - virtio-net: support multi buffer XDP
         - virtio/vsock: replace virtio_vsock_pkt with sk_buff
         - tsnep: XDP support

   - Ethernet high-speed switches:
      - nVidia/Mellanox (mlxsw):
         - add support for latency TLV (in FW control messages)
      - Microchip (sparx5):
         - separate explicit and implicit traffic forwarding rules, make
           the implicit rules always active
         - add support for egress DSCP rewrite
         - IS0 VCAP support (Ingress Classification)
         - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS
           etc.)
         - ES2 VCAP support (Egress Access Control)
         - support for Per-Stream Filtering and Policing (802.1Q,
           8.6.5.1)

   - Ethernet embedded switches:
      - Marvell (mv88e6xxx):
         - add MAB (port auth) offload support
         - enable PTP receive for mv88e6390
      - NXP (ocelot):
         - support MAC Merge layer
         - support for the the vsc7512 internal copper phys
      - Microchip:
         - lan9303: convert to PHYLINK
         - lan966x: support TC flower filter statistics
         - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x
         - lan937x: support Credit Based Shaper configuration
         - ksz9477: support Energy Efficient Ethernet
      - other:
         - qca8k: convert to regmap read/write API, use bulk operations
         - rswitch: Improve TX timestamp accuracy

   - Intel WiFi (iwlwifi):
      - EHT (Wi-Fi 7) rate reporting
      - STEP equalizer support: transfer some STEP (connection to radio
        on platforms with integrated wifi) related parameters from the
        BIOS to the firmware.

   - Qualcomm 802.11ax WiFi (ath11k):
      - IPQ5018 support
      - Fine Timing Measurement (FTM) responder role support
      - channel 177 support

   - MediaTek WiFi (mt76):
      - per-PHY LED support
      - mt7996: EHT (Wi-Fi 7) support
      - Wireless Ethernet Dispatch (WED) reset support
      - switch to using page pool allocator

   - RealTek WiFi (rtw89):
      - support new version of Bluetooth co-existance

   - Mobile:
      - rmnet: support TX aggregation"

* tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits)
  page_pool: add a comment explaining the fragment counter usage
  net: ethtool: fix __ethtool_dev_mm_supported() implementation
  ethtool: pse-pd: Fix double word in comments
  xsk: add linux/vmalloc.h to xsk.c
  sefltests: netdevsim: wait for devlink instance after netns removal
  selftest: fib_tests: Always cleanup before exit
  net/mlx5e: Align IPsec ASO result memory to be as required by hardware
  net/mlx5e: TC, Set CT miss to the specific ct action instance
  net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG
  net/mlx5: Refactor tc miss handling to a single function
  net/mlx5: Kconfig: Make tc offload depend on tc skb extension
  net/sched: flower: Support hardware miss to tc action
  net/sched: flower: Move filter handle initialization earlier
  net/sched: cls_api: Support hardware miss to tc action
  net/sched: Rename user cookie and act cookie
  sfc: fix builds without CONFIG_RTC_LIB
  sfc: clean up some inconsistent indentings
  net/mlx4_en: Introduce flexible array to silence overflow warning
  net: lan966x: Fix possible deadlock inside PTP
  net/ulp: Remove redundant ->clone() test in inet_clone_ulp().
  ...

1 files changed, 844 insertions, 0 deletions

diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
new file mode 100644
index 000000000..a9477e543
--- /dev/null
+++ b/drivers/platform/x86/dell/alienware-wmi.c
@@ -0,0 +1,844 @@
+// 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/module.h>
+#include <linux/platform_device.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
+
+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);
+
+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 quirk_entry {
+	u8 num_zones;
+	u8 hdmi_mux;
+	u8 amplifier;
+	u8 deepslp;
+};
+
+static struct quirk_entry *quirks;
+
+
+static struct quirk_entry quirk_inspiron5675 = {
+	.num_zones = 2,
+	.hdmi_mux = 0,
+	.amplifier = 0,
+	.deepslp = 0,
+};
+
+static struct quirk_entry quirk_unknown = {
+	.num_zones = 2,
+	.hdmi_mux = 0,
+	.amplifier = 0,
+	.deepslp = 0,
+};
+
+static struct quirk_entry quirk_x51_r1_r2 = {
+	.num_zones = 3,
+	.hdmi_mux = 0,
+	.amplifier = 0,
+	.deepslp = 0,
+};
+
+static struct quirk_entry quirk_x51_r3 = {
+	.num_zones = 4,
+	.hdmi_mux = 0,
+	.amplifier = 1,
+	.deepslp = 0,
+};
+
+static struct quirk_entry quirk_asm100 = {
+	.num_zones = 2,
+	.hdmi_mux = 1,
+	.amplifier = 0,
+	.deepslp = 0,
+};
+
+static struct quirk_entry quirk_asm200 = {
+	.num_zones = 2,
+	.hdmi_mux = 1,
+	.amplifier = 0,
+	.deepslp = 1,
+};
+
+static struct quirk_entry quirk_asm201 = {
+	.num_zones = 2,
+	.hdmi_mux = 1,
+	.amplifier = 1,
+	.deepslp = 1,
+};
+
+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 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 = "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 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 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 = "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 platform_zone {
+	u8 location;
+	struct device_attribute *attr;
+	struct color_platform colors;
+};
+
+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;
+
+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_driver platform_driver = {
+	.driver = {
+		   .name = "alienware-wmi",
+		   }
+};
+
+static struct attribute_group zone_attribute_group = {
+	.name = "rgb_zones",
+};
+
+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 platform_zone *zone)
+{
+	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);
+	zone->colors = repackager.cp;
+	return 0;
+}
+
+static struct platform_zone *match_zone(struct device_attribute *attr)
+{
+	u8 zone;
+
+	for (zone = 0; zone < quirks->num_zones; zone++) {
+		if ((struct device_attribute *)zone_data[zone].attr == attr) {
+			pr_debug("alienware-wmi: matched zone location: %d\n",
+				 zone_data[zone].location);
+			return &zone_data[zone];
+		}
+	}
+	return NULL;
+}
+
+/*
+ * Individual RGB zone control
+ */
+static int alienware_update_led(struct platform_zone *zone)
+{
+	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 << zone->location;
+		wmax_basic_args.colors = zone->colors;
+		wmax_basic_args.state = lighting_control_state;
+		guid = WMAX_CONTROL_GUID;
+		method_id = WMAX_METHOD_ZONE_CONTROL;
+
+		input.length = (acpi_size) sizeof(wmax_basic_args);
+		input.pointer = &wmax_basic_args;
+	} else {
+		legacy_args.colors = zone->colors;
+		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 = zone->location + 1;
+
+		input.length = (acpi_size) 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)
+{
+	struct platform_zone *target_zone;
+	target_zone = match_zone(attr);
+	if (target_zone == NULL)
+		return sprintf(buf, "red: -1, green: -1, blue: -1\n");
+	return sprintf(buf, "red: %d, green: %d, blue: %d\n",
+		       target_zone->colors.red,
+		       target_zone->colors.green, target_zone->colors.blue);
+
+}
+
+static ssize_t zone_set(struct device *dev, struct device_attribute *attr,
+			const char *buf, size_t count)
+{
+	struct platform_zone *target_zone;
+	int ret;
+	target_zone = match_zone(attr);
+	if (target_zone == NULL) {
+		pr_err("alienware-wmi: invalid target zone\n");
+		return 1;
+	}
+	ret = parse_rgb(buf, target_zone);
+	if (ret)
+		return ret;
+	ret = alienware_update_led(target_zone);
+	return ret ? ret : count;
+}
+
+/*
+ * 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 = (acpi_size) 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(&zone_data[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",
+};
+
+/*
+ * Lighting control state device attribute (Global)
+ */
+static ssize_t show_control_state(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 store_control_state(struct device *dev,
+				   struct device_attribute *attr,
+				   const char *buf, size_t count)
+{
+	long unsigned int 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(lighting_control_state, 0644, show_control_state,
+		   store_control_state);
+
+static int alienware_zone_init(struct platform_device *dev)
+{
+	u8 zone;
+	char buffer[10];
+	char *name;
+
+	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;
+
+	/*
+	 *      - zone_dev_attrs num_zones + 1 is for individual zones and then
+	 *        null terminated
+	 *      - zone_attrs num_zones + 2 is for all attrs in zone_dev_attrs +
+	 *        the lighting control + null terminated
+	 *      - zone_data num_zones is for the distinct zones
+	 */
+	zone_dev_attrs =
+	    kcalloc(quirks->num_zones + 1, sizeof(struct device_attribute),
+		    GFP_KERNEL);
+	if (!zone_dev_attrs)
+		return -ENOMEM;
+
+	zone_attrs =
+	    kcalloc(quirks->num_zones + 2, sizeof(struct attribute *),
+		    GFP_KERNEL);
+	if (!zone_attrs)
+		return -ENOMEM;
+
+	zone_data =
+	    kcalloc(quirks->num_zones, sizeof(struct platform_zone),
+		    GFP_KERNEL);
+	if (!zone_data)
+		return -ENOMEM;
+
+	for (zone = 0; zone < quirks->num_zones; zone++) {
+		sprintf(buffer, "zone%02hhX", zone);
+		name = kstrdup(buffer, GFP_KERNEL);
+		if (name == NULL)
+			return 1;
+		sysfs_attr_init(&zone_dev_attrs[zone].attr);
+		zone_dev_attrs[zone].attr.name = name;
+		zone_dev_attrs[zone].attr.mode = 0644;
+		zone_dev_attrs[zone].show = zone_show;
+		zone_dev_attrs[zone].store = zone_set;
+		zone_data[zone].location = zone;
+		zone_attrs[zone] = &zone_dev_attrs[zone].attr;
+		zone_data[zone].attr = &zone_dev_attrs[zone];
+	}
+	zone_attrs[quirks->num_zones] = &dev_attr_lighting_control_state.attr;
+	zone_attribute_group.attrs = zone_attrs;
+
+	led_classdev_register(&dev->dev, &global_led);
+
+	return sysfs_create_group(&dev->dev.kobj, &zone_attribute_group);
+}
+
+static void alienware_zone_exit(struct platform_device *dev)
+{
+	u8 zone;
+
+	sysfs_remove_group(&dev->dev.kobj, &zone_attribute_group);
+	led_classdev_unregister(&global_led);
+	if (zone_dev_attrs) {
+		for (zone = 0; zone < quirks->num_zones; zone++)
+			kfree(zone_dev_attrs[zone].attr.name);
+	}
+	kfree(zone_dev_attrs);
+	kfree(zone_data);
+	kfree(zone_attrs);
+}
+
+static acpi_status alienware_wmax_command(struct wmax_basic_args *in_args,
+					  u32 command, int *out_data)
+{
+	acpi_status status;
+	union acpi_object *obj;
+	struct acpi_buffer input;
+	struct acpi_buffer output;
+
+	input.length = (acpi_size) sizeof(*in_args);
+	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 show_hdmi_cable(struct device *dev,
+			       struct device_attribute *attr, char *buf)
+{
+	acpi_status status;
+	u32 out_data;
+	struct wmax_basic_args in_args = {
+		.arg = 0,
+	};
+	status =
+	    alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_CABLE,
+				   (u32 *) &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 show_hdmi_source(struct device *dev,
+				struct device_attribute *attr, char *buf)
+{
+	acpi_status status;
+	u32 out_data;
+	struct wmax_basic_args in_args = {
+		.arg = 0,
+	};
+	status =
+	    alienware_wmax_command(&in_args, WMAX_METHOD_HDMI_STATUS,
+				   (u32 *) &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 toggle_hdmi_source(struct device *dev,
+				  struct device_attribute *attr,
+				  const char *buf, size_t count)
+{
+	acpi_status status;
+	struct wmax_basic_args args;
+	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, 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(cable, S_IRUGO, show_hdmi_cable, NULL);
+static DEVICE_ATTR(source, S_IRUGO | S_IWUSR, show_hdmi_source,
+		   toggle_hdmi_source);
+
+static struct attribute *hdmi_attrs[] = {
+	&dev_attr_cable.attr,
+	&dev_attr_source.attr,
+	NULL,
+};
+
+static const struct attribute_group hdmi_attribute_group = {
+	.name = "hdmi",
+	.attrs = hdmi_attrs,
+};
+
+static void remove_hdmi(struct platform_device *dev)
+{
+	if (quirks->hdmi_mux > 0)
+		sysfs_remove_group(&dev->dev.kobj, &hdmi_attribute_group);
+}
+
+static int create_hdmi(struct platform_device *dev)
+{
+	int ret;
+
+	ret = sysfs_create_group(&dev->dev.kobj, &hdmi_attribute_group);
+	if (ret)
+		remove_hdmi(dev);
+	return ret;
+}
+
+/*
+ * Alienware GFX amplifier support
+ * - Currently supports reading cable status
+ * - Leaving expansion room to possibly support dock/undock events later
+ */
+static ssize_t show_amplifier_status(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	acpi_status status;
+	u32 out_data;
+	struct wmax_basic_args in_args = {
+		.arg = 0,
+	};
+	status =
+	    alienware_wmax_command(&in_args, WMAX_METHOD_AMPLIFIER_CABLE,
+				   (u32 *) &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(status, S_IRUGO, show_amplifier_status, NULL);
+
+static struct attribute *amplifier_attrs[] = {
+	&dev_attr_status.attr,
+	NULL,
+};
+
+static const struct attribute_group amplifier_attribute_group = {
+	.name = "amplifier",
+	.attrs = amplifier_attrs,
+};
+
+static void remove_amplifier(struct platform_device *dev)
+{
+	if (quirks->amplifier > 0)
+		sysfs_remove_group(&dev->dev.kobj, &amplifier_attribute_group);
+}
+
+static int create_amplifier(struct platform_device *dev)
+{
+	int ret;
+
+	ret = sysfs_create_group(&dev->dev.kobj, &amplifier_attribute_group);
+	if (ret)
+		remove_amplifier(dev);
+	return ret;
+}
+
+/*
+ * Deep Sleep Control support
+ * - Modifies BIOS setting for deep sleep control allowing extra wakeup events
+ */
+static ssize_t show_deepsleep_status(struct device *dev,
+				     struct device_attribute *attr, char *buf)
+{
+	acpi_status status;
+	u32 out_data;
+	struct wmax_basic_args in_args = {
+		.arg = 0,
+	};
+	status = alienware_wmax_command(&in_args, WMAX_METHOD_DEEP_SLEEP_STATUS,
+					(u32 *) &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 toggle_deepsleep(struct device *dev,
+				struct device_attribute *attr,
+				const char *buf, size_t count)
+{
+	acpi_status status;
+	struct wmax_basic_args args;
+
+	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, 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(deepsleep, S_IRUGO | S_IWUSR, show_deepsleep_status, toggle_deepsleep);
+
+static struct attribute *deepsleep_attrs[] = {
+	&dev_attr_deepsleep.attr,
+	NULL,
+};
+
+static const struct attribute_group deepsleep_attribute_group = {
+	.name = "deepsleep",
+	.attrs = deepsleep_attrs,
+};
+
+static void remove_deepsleep(struct platform_device *dev)
+{
+	if (quirks->deepslp > 0)
+		sysfs_remove_group(&dev->dev.kobj, &deepsleep_attribute_group);
+}
+
+static int create_deepsleep(struct platform_device *dev)
+{
+	int ret;
+
+	ret = sysfs_create_group(&dev->dev.kobj, &deepsleep_attribute_group);
+	if (ret)
+		remove_deepsleep(dev);
+	return ret;
+}
+
+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;
+
+	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->hdmi_mux > 0) {
+		ret = create_hdmi(platform_device);
+		if (ret)
+			goto fail_prep_hdmi;
+	}
+
+	if (quirks->amplifier > 0) {
+		ret = create_amplifier(platform_device);
+		if (ret)
+			goto fail_prep_amplifier;
+	}
+
+	if (quirks->deepslp > 0) {
+		ret = create_deepsleep(platform_device);
+		if (ret)
+			goto fail_prep_deepsleep;
+	}
+
+	ret = alienware_zone_init(platform_device);
+	if (ret)
+		goto fail_prep_zones;
+
+	return 0;
+
+fail_prep_zones:
+	alienware_zone_exit(platform_device);
+fail_prep_deepsleep:
+fail_prep_amplifier:
+fail_prep_hdmi:
+	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)
+{
+	if (platform_device) {
+		alienware_zone_exit(platform_device);
+		remove_hdmi(platform_device);
+		platform_device_unregister(platform_device);
+		platform_driver_unregister(&platform_driver);
+	}
+}
+
+module_exit(alienware_wmi_exit);