| /* |
| * Alienware AlienFX control |
| * |
| * Copyright (C) 2014 Dell Inc <mario_limonciello@dell.com> |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; either version 2 of the License, or |
| * (at your option) any later version. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| */ |
| |
| #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@dell.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_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, |
| }, |
| {} |
| }; |
| |
| 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) |
| { |
| int i; |
| for (i = 0; i < quirks->num_zones; i++) { |
| if ((struct device_attribute *)zone_data[i].attr == attr) { |
| pr_debug("alienware-wmi: matched zone location: %d\n", |
| zone_data[i].location); |
| return &zone_data[i]; |
| } |
| } |
| 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, 1, 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, 1, |
| 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 scnprintf(buf, PAGE_SIZE, "[booting] running suspend\n"); |
| else if (lighting_control_state == LEGACY_SUSPEND) |
| return scnprintf(buf, PAGE_SIZE, "booting running [suspend]\n"); |
| return scnprintf(buf, PAGE_SIZE, "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) |
| { |
| int i; |
| 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 = |
| kzalloc(sizeof(struct device_attribute) * (quirks->num_zones + 1), |
| GFP_KERNEL); |
| if (!zone_dev_attrs) |
| return -ENOMEM; |
| |
| zone_attrs = |
| kzalloc(sizeof(struct attribute *) * (quirks->num_zones + 2), |
| GFP_KERNEL); |
| if (!zone_attrs) |
| return -ENOMEM; |
| |
| zone_data = |
| kzalloc(sizeof(struct platform_zone) * (quirks->num_zones), |
| GFP_KERNEL); |
| if (!zone_data) |
| return -ENOMEM; |
| |
| for (i = 0; i < quirks->num_zones; i++) { |
| sprintf(buffer, "zone%02X", i); |
| name = kstrdup(buffer, GFP_KERNEL); |
| if (name == NULL) |
| return 1; |
| sysfs_attr_init(&zone_dev_attrs[i].attr); |
| zone_dev_attrs[i].attr.name = name; |
| zone_dev_attrs[i].attr.mode = 0644; |
| zone_dev_attrs[i].show = zone_show; |
| zone_dev_attrs[i].store = zone_set; |
| zone_data[i].location = i; |
| zone_attrs[i] = &zone_dev_attrs[i].attr; |
| zone_data[i].attr = &zone_dev_attrs[i]; |
| } |
| 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) |
| { |
| sysfs_remove_group(&dev->dev.kobj, &zone_attribute_group); |
| led_classdev_unregister(&global_led); |
| if (zone_dev_attrs) { |
| int i; |
| for (i = 0; i < quirks->num_zones; i++) |
| kfree(zone_dev_attrs[i].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 != NULL) { |
| output.length = ACPI_ALLOCATE_BUFFER; |
| output.pointer = NULL; |
| status = wmi_evaluate_method(WMAX_CONTROL_GUID, 1, |
| command, &input, &output); |
| } else |
| status = wmi_evaluate_method(WMAX_CONTROL_GUID, 1, |
| command, &input, NULL); |
| |
| if (ACPI_SUCCESS(status) && out_data != NULL) { |
| obj = (union acpi_object *)output.pointer; |
| if (obj && obj->type == ACPI_TYPE_INTEGER) |
| *out_data = (u32) obj->integer.value; |
| } |
| 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 scnprintf(buf, PAGE_SIZE, |
| "[unconnected] connected unknown\n"); |
| else if (out_data == 1) |
| return scnprintf(buf, PAGE_SIZE, |
| "unconnected [connected] unknown\n"); |
| } |
| pr_err("alienware-wmi: unknown HDMI cable status: %d\n", status); |
| return scnprintf(buf, PAGE_SIZE, "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 scnprintf(buf, PAGE_SIZE, |
| "[input] gpu unknown\n"); |
| else if (out_data == 2) |
| return scnprintf(buf, PAGE_SIZE, |
| "input [gpu] unknown\n"); |
| } |
| pr_err("alienware-wmi: unknown HDMI source status: %d\n", out_data); |
| return scnprintf(buf, PAGE_SIZE, "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 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 scnprintf(buf, PAGE_SIZE, |
| "[unconnected] connected unknown\n"); |
| else if (out_data == 1) |
| return scnprintf(buf, PAGE_SIZE, |
| "unconnected [connected] unknown\n"); |
| } |
| pr_err("alienware-wmi: unknown amplifier cable status: %d\n", status); |
| return scnprintf(buf, PAGE_SIZE, "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 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, &lifier_attribute_group); |
| } |
| |
| static int create_amplifier(struct platform_device *dev) |
| { |
| int ret; |
| |
| ret = sysfs_create_group(&dev->dev.kobj, &lifier_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 scnprintf(buf, PAGE_SIZE, |
| "[disabled] s5 s5_s4\n"); |
| else if (out_data == 1) |
| return scnprintf(buf, PAGE_SIZE, |
| "disabled [s5] s5_s4\n"); |
| else if (out_data == 2) |
| return scnprintf(buf, PAGE_SIZE, |
| "disabled s5 [s5_s4]\n"); |
| } |
| pr_err("alienware-wmi: unknown deep sleep status: %d\n", status); |
| return scnprintf(buf, PAGE_SIZE, "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 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", -1); |
| 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); |