// SPDX-License-Identifier: GPL-2.0-or-later
/*
- * HID driver for Steelseries SRW-S1
+ * HID driver for Steelseries devices
*
* Copyright (c) 2013 Simon Wood
+ * Copyright (c) 2023 Bastien Nocera
*/
/*
#include <linux/device.h>
#include <linux/hid.h>
#include <linux/module.h>
+#include <linux/usb.h>
#include <linux/leds.h>
#include "hid-ids.h"
+#define STEELSERIES_SRWS1 BIT(0)
+#define STEELSERIES_ARCTIS_1 BIT(1)
+
+struct steelseries_device {
+ struct hid_device *hdev;
+ unsigned long quirks;
+
+ struct delayed_work battery_work;
+ spinlock_t lock;
+ bool removed;
+
+ struct power_supply_desc battery_desc;
+ struct power_supply *battery;
+ uint8_t battery_capacity;
+ bool headset_connected;
+};
+
#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
(IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
#define SRWS1_NUMBER_LEDS 15
}
#endif
+#define STEELSERIES_HEADSET_BATTERY_TIMEOUT_MS 3000
+
+#define ARCTIS_1_BATTERY_RESPONSE_LEN 8
+const char arctis_1_battery_request[] = { 0x06, 0x12 };
+
+static int steelseries_headset_arctis_1_fetch_battery(struct hid_device *hdev)
+{
+ u8 *write_buf;
+ int ret;
+
+ /* Request battery information */
+ write_buf = kmemdup(arctis_1_battery_request, sizeof(arctis_1_battery_request), GFP_KERNEL);
+ if (!write_buf)
+ return -ENOMEM;
+
+ ret = hid_hw_raw_request(hdev, arctis_1_battery_request[0],
+ write_buf, sizeof(arctis_1_battery_request),
+ HID_OUTPUT_REPORT, HID_REQ_SET_REPORT);
+ if (ret < sizeof(arctis_1_battery_request)) {
+ hid_err(hdev, "hid_hw_raw_request() failed with %d\n", ret);
+ ret = -ENODATA;
+ }
+ kfree(write_buf);
+ return ret;
+}
+
+static void steelseries_headset_fetch_battery(struct hid_device *hdev)
+{
+ struct steelseries_device *sd = hid_get_drvdata(hdev);
+ int ret = 0;
+
+ if (sd->quirks & STEELSERIES_ARCTIS_1)
+ ret = steelseries_headset_arctis_1_fetch_battery(hdev);
+
+ if (ret < 0)
+ hid_dbg(hdev,
+ "Battery query failed (err: %d)\n", ret);
+}
+
+static void steelseries_headset_battery_timer_tick(struct work_struct *work)
+{
+ struct steelseries_device *sd = container_of(work,
+ struct steelseries_device, battery_work.work);
+ struct hid_device *hdev = sd->hdev;
+
+ steelseries_headset_fetch_battery(hdev);
+}
+
+static int steelseries_headset_battery_get_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct steelseries_device *sd = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_PRESENT:
+ val->intval = 1;
+ break;
+ case POWER_SUPPLY_PROP_STATUS:
+ val->intval = sd->headset_connected ?
+ POWER_SUPPLY_STATUS_DISCHARGING :
+ POWER_SUPPLY_STATUS_UNKNOWN;
+ break;
+ case POWER_SUPPLY_PROP_SCOPE:
+ val->intval = POWER_SUPPLY_SCOPE_DEVICE;
+ break;
+ case POWER_SUPPLY_PROP_CAPACITY:
+ val->intval = sd->battery_capacity;
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ return ret;
+}
+
+static void
+steelseries_headset_set_wireless_status(struct hid_device *hdev,
+ bool connected)
+{
+ struct usb_interface *intf;
+
+ if (!hid_is_usb(hdev))
+ return;
+
+ intf = to_usb_interface(hdev->dev.parent);
+ usb_set_wireless_status(intf, connected ?
+ USB_WIRELESS_STATUS_CONNECTED :
+ USB_WIRELESS_STATUS_DISCONNECTED);
+}
+
+static enum power_supply_property steelseries_headset_battery_props[] = {
+ POWER_SUPPLY_PROP_PRESENT,
+ POWER_SUPPLY_PROP_STATUS,
+ POWER_SUPPLY_PROP_SCOPE,
+ POWER_SUPPLY_PROP_CAPACITY,
+};
+
+static int steelseries_headset_battery_register(struct steelseries_device *sd)
+{
+ static atomic_t battery_no = ATOMIC_INIT(0);
+ struct power_supply_config battery_cfg = { .drv_data = sd, };
+ unsigned long n;
+ int ret;
+
+ sd->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY;
+ sd->battery_desc.properties = steelseries_headset_battery_props;
+ sd->battery_desc.num_properties = ARRAY_SIZE(steelseries_headset_battery_props);
+ sd->battery_desc.get_property = steelseries_headset_battery_get_property;
+ sd->battery_desc.use_for_apm = 0;
+ n = atomic_inc_return(&battery_no) - 1;
+ sd->battery_desc.name = devm_kasprintf(&sd->hdev->dev, GFP_KERNEL,
+ "steelseries_headset_battery_%ld", n);
+ if (!sd->battery_desc.name)
+ return -ENOMEM;
+
+ /* avoid the warning of 0% battery while waiting for the first info */
+ steelseries_headset_set_wireless_status(sd->hdev, false);
+ sd->battery_capacity = 100;
+
+ sd->battery = devm_power_supply_register(&sd->hdev->dev,
+ &sd->battery_desc, &battery_cfg);
+ if (IS_ERR(sd->battery)) {
+ ret = PTR_ERR(sd->battery);
+ hid_err(sd->hdev,
+ "%s:power_supply_register failed with error %d\n",
+ __func__, ret);
+ return ret;
+ }
+ power_supply_powers(sd->battery, &sd->hdev->dev);
+
+ INIT_DELAYED_WORK(&sd->battery_work, steelseries_headset_battery_timer_tick);
+ steelseries_headset_fetch_battery(sd->hdev);
+
+ return 0;
+}
+
+static int steelseries_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ struct steelseries_device *sd;
+ int ret;
+
+ sd = devm_kzalloc(&hdev->dev, sizeof(*sd), GFP_KERNEL);
+ if (!sd)
+ return -ENOMEM;
+ hid_set_drvdata(hdev, sd);
+ sd->hdev = hdev;
+ sd->quirks = id->driver_data;
+
+ if (sd->quirks & STEELSERIES_SRWS1) {
+#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
+ (IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
+ return steelseries_srws1_probe(hdev, id);
+#else
+ return -ENODEV;
+#endif
+ }
+
+ ret = hid_parse(hdev);
+ if (ret)
+ return ret;
+
+ spin_lock_init(&sd->lock);
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret)
+ return ret;
+
+ if (steelseries_headset_battery_register(sd) < 0)
+ hid_err(sd->hdev,
+ "Failed to register battery for headset\n");
+
+ return ret;
+}
+
+static void steelseries_remove(struct hid_device *hdev)
+{
+ struct steelseries_device *sd = hid_get_drvdata(hdev);
+ unsigned long flags;
+
+ if (sd->quirks & STEELSERIES_SRWS1) {
+#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
+ (IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
+ steelseries_srws1_remove(hdev);
+#endif
+ return;
+ }
+
+ spin_lock_irqsave(&sd->lock, flags);
+ sd->removed = true;
+ spin_unlock_irqrestore(&sd->lock, flags);
+
+ cancel_delayed_work_sync(&sd->battery_work);
+
+ hid_hw_stop(hdev);
+}
+
static __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
+ if (hdev->vendor != USB_VENDOR_ID_STEELSERIES ||
+ hdev->product != USB_DEVICE_ID_STEELSERIES_SRWS1)
+ return rdesc;
+
if (*rsize >= 115 && rdesc[11] == 0x02 && rdesc[13] == 0xc8
&& rdesc[29] == 0xbb && rdesc[40] == 0xc5) {
hid_info(hdev, "Fixing up Steelseries SRW-S1 report descriptor\n");
return rdesc;
}
-static const struct hid_device_id steelseries_srws1_devices[] = {
- { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
+static int steelseries_headset_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *read_buf,
+ int size)
+{
+ struct steelseries_device *sd = hid_get_drvdata(hdev);
+ int capacity = sd->battery_capacity;
+ bool connected = sd->headset_connected;
+ unsigned long flags;
+
+ /* Not a headset */
+ if (sd->quirks & STEELSERIES_SRWS1)
+ return 0;
+
+ if (sd->quirks & STEELSERIES_ARCTIS_1) {
+ hid_dbg(sd->hdev,
+ "Parsing raw event for Arctis 1 headset (%*ph)\n", size, read_buf);
+ if (size < ARCTIS_1_BATTERY_RESPONSE_LEN ||
+ memcmp (read_buf, arctis_1_battery_request, sizeof(arctis_1_battery_request)))
+ return 0;
+ if (read_buf[2] == 0x01) {
+ connected = false;
+ capacity = 100;
+ } else {
+ connected = true;
+ capacity = read_buf[3];
+ }
+ }
+
+ if (connected != sd->headset_connected) {
+ hid_dbg(sd->hdev,
+ "Connected status changed from %sconnected to %sconnected\n",
+ sd->headset_connected ? "" : "not ",
+ connected ? "" : "not ");
+ sd->headset_connected = connected;
+ steelseries_headset_set_wireless_status(hdev, connected);
+ }
+
+ if (capacity != sd->battery_capacity) {
+ hid_dbg(sd->hdev,
+ "Battery capacity changed from %d%% to %d%%\n",
+ sd->battery_capacity, capacity);
+ sd->battery_capacity = capacity;
+ power_supply_changed(sd->battery);
+ }
+
+ spin_lock_irqsave(&sd->lock, flags);
+ if (!sd->removed)
+ schedule_delayed_work(&sd->battery_work,
+ msecs_to_jiffies(STEELSERIES_HEADSET_BATTERY_TIMEOUT_MS));
+ spin_unlock_irqrestore(&sd->lock, flags);
+
+ return 0;
+}
+
+static const struct hid_device_id steelseries_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1),
+ .driver_data = STEELSERIES_SRWS1 },
+
+ { /* SteelSeries Arctis 1 Wireless for XBox */
+ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, 0x12b6),
+ .driver_data = STEELSERIES_ARCTIS_1 },
+
{ }
};
-MODULE_DEVICE_TABLE(hid, steelseries_srws1_devices);
-
-static struct hid_driver steelseries_srws1_driver = {
- .name = "steelseries_srws1",
- .id_table = steelseries_srws1_devices,
-#if IS_BUILTIN(CONFIG_LEDS_CLASS) || \
- (IS_MODULE(CONFIG_LEDS_CLASS) && IS_MODULE(CONFIG_HID_STEELSERIES))
- .probe = steelseries_srws1_probe,
- .remove = steelseries_srws1_remove,
-#endif
- .report_fixup = steelseries_srws1_report_fixup
+MODULE_DEVICE_TABLE(hid, steelseries_devices);
+
+static struct hid_driver steelseries_driver = {
+ .name = "steelseries",
+ .id_table = steelseries_devices,
+ .probe = steelseries_probe,
+ .remove = steelseries_remove,
+ .report_fixup = steelseries_srws1_report_fixup,
+ .raw_event = steelseries_headset_raw_event,
};
-module_hid_driver(steelseries_srws1_driver);
+module_hid_driver(steelseries_driver);
MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Bastien Nocera <hadess@hadess.net>");
+MODULE_AUTHOR("Simon Wood <simon@mungewell.org>");
projects / platform / kernel / linux-rpi.git / commitdiff