#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;
}
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;
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;
}
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);
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,
};
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;
}
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);
