Add WMI drivers for LEGACY and WMAX devices. On hosts that support the
AlienFX interface, the corresponding platform device will be registered
as a bundle on the WMI driver's probe and will "pass" a WMI device
pointer to the platform device as platform specific data.
Signed-off-by: Kurt Borja <kuurtb@xxxxxxxxx>
---
drivers/platform/x86/dell/alienware-wmi.c | 115 +++++++++++++++++++++-
1 file changed, 113 insertions(+), 2 deletions(-)
diff --git a/drivers/platform/x86/dell/alienware-wmi.c b/drivers/platform/x86/dell/alienware-wmi.c
index e5e4a7b4e9ca..38e9cb80ae69 100644
--- a/drivers/platform/x86/dell/alienware-wmi.c
+++ b/drivers/platform/x86/dell/alienware-wmi.c
@@ -15,6 +15,7 @@
#include <linux/platform_profile.h>
#include <linux/dmi.h>
#include <linux/leds.h>
+#include <linux/wmi.h>
#define LEGACY_CONTROL_GUID "A90597CE-A997-11DA-B012-B622A1EF5492"
#define LEGACY_POWER_CONTROL_GUID "A80593CE-A997-11DA-B012-B622A1EF5492"
@@ -39,8 +40,6 @@
MODULE_AUTHOR("Mario Limonciello <mario.limonciello@xxxxxxxxxxx>");
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);
@@ -412,6 +411,10 @@ struct alienfx_priv {
u8 lighting_control_state;
};
+struct alienfx_platdata {
+ struct wmi_device *wdev;
+};
+
static struct platform_device *platform_device;
static struct platform_profile_handler pp_handler;
static enum wmax_thermal_mode supported_thermal_profiles[PLATFORM_PROFILE_LAST];
@@ -1150,6 +1153,114 @@ static struct platform_driver platform_driver = {
.probe = alienfx_probe,
};
+static int alienfx_wmi_init(struct alienfx_platdata *pdata)
+{
+ struct platform_device *pdev;
+
+ pdev = platform_create_bundle(&platform_driver, alienfx_probe, NULL, 0,
+ pdata, sizeof(*pdata));
+
+ dev_set_drvdata(&pdata->wdev->dev, pdev);
+
+ return PTR_ERR_OR_ZERO(pdev);
+}
+
+static void alienfx_wmi_exit(struct wmi_device *wdev)
+{
+ struct platform_device *pdev;
+
+ pdev = dev_get_drvdata(&wdev->dev);
+
+ platform_device_unregister(pdev);
+ platform_driver_unregister(&platform_driver);
+}
+
+/*
+ * Legacy WMI device
+ */
+static int legacy_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+ int ret = 0;
+ struct alienfx_platdata pdata = {
+ .wdev = wdev,
+ };
+
+ if (quirks->num_zones > 0)
+ ret = alienfx_wmi_init(&pdata);
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void legacy_wmi_remove(struct wmi_device *wdev)
+{
+ if (quirks->num_zones > 0)
+ alienfx_wmi_exit(wdev);
+}
+
+static 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,
+ .remove = legacy_wmi_remove,
+};
+
+/*
+ * WMAX WMI device
+ */
+static int wmax_wmi_probe(struct wmi_device *wdev, const void *context)
+{
+ int ret = 0;
+ struct alienfx_platdata pdata = {
+ .wdev = wdev,
+ };
+
+ if (quirks->thermal)
+ ret = create_thermal_profile();
+ else if (quirks->num_zones > 0)
+ ret = alienfx_wmi_init(&pdata);
+
+ if (ret < 0)
+ return ret;
+
+ return 0;
+}
+
+static void wmax_wmi_remove(struct wmi_device *wdev)
+{
+ if (quirks->thermal)
+ remove_thermal_profile();
+ else if (quirks->num_zones > 0)
+ alienfx_wmi_exit(wdev);
+}
+
+static 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,
+ },
+ .id_table = alienware_wmax_device_id_table,
+ .probe = wmax_wmi_probe,
+ .remove = wmax_wmi_remove,
+};
+
static int __init alienware_wmi_init(void)
{
int ret;
--
2.47.1
