@@ -1236,6 +1236,22 @@ config HID_WIIMOTE
To compile this driver as a module, choose M here: the
module will be called hid-wiimote.
+config HID_WINWING
+ tristate "WinWing Orion2 throttle support"
+ depends on USB_HID
+ depends on NEW_LEDS
+ depends on LEDS_CLASS
+ help
+ Support for WinWing Orion2 throttle base with the following grips:
+
+ * TGRIP-16EX
+ * TGRIP-18
+
+ This driver enables all buttons and switches on the throttle base.
+
+ To compile this driver as a module, choose M here: the
+ module will be called hid-winwing.
+
config HID_XINMO
tristate "Xin-Mo non-fully compliant devices"
help
@@ -150,6 +150,7 @@ wacom-objs := wacom_wac.o wacom_sys.o
obj-$(CONFIG_HID_WACOM) += wacom.o
obj-$(CONFIG_HID_WALTOP) += hid-waltop.o
obj-$(CONFIG_HID_WIIMOTE) += hid-wiimote.o
+obj-$(CONFIG_HID_WINWING) += hid-winwing.o
obj-$(CONFIG_HID_SENSOR_HUB) += hid-sensor-hub.o
obj-$(CONFIG_HID_SENSOR_CUSTOM_SENSOR) += hid-sensor-custom.o
new file mode 100644
@@ -0,0 +1,229 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/*
+ * HID driver for WinWing Orion 2 throttle
+ *
+ * Copyright (c) 2023 Ivan Gorinov
+ */
+
+#include <linux/device.h>
+#include <linux/hid.h>
+#include <linux/hidraw.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/mutex.h>
+
+#define MAX_REPORT 16
+
+struct winwing_led {
+ struct led_classdev cdev;
+ struct hid_device *hdev;
+ int number;
+};
+
+struct winwing_led_info {
+ int number;
+ int max_brightness;
+ const char *led_name;
+};
+
+static struct winwing_led_info led_info[3] = {
+ { 0, 255, "backlight" },
+ { 1, 1, "a-a" },
+ { 2, 1, "a-g" },
+};
+
+struct winwing_drv_data {
+ struct hid_device *hdev;
+ __u8 *report_buf;
+ struct mutex lock;
+ unsigned int num_leds;
+ struct winwing_led leds[];
+};
+
+static int winwing_led_write(struct led_classdev *cdev,
+ enum led_brightness br)
+{
+ struct winwing_led *led = (struct winwing_led *) cdev;
+ struct winwing_drv_data *data = hid_get_drvdata(led->hdev);
+ __u8 *buf = data->report_buf;
+ int ret;
+
+ mutex_lock(&data->lock);
+
+ buf[0] = 0x02;
+ buf[1] = 0x60;
+ buf[2] = 0xbe;
+ buf[3] = 0x00;
+ buf[4] = 0x00;
+ buf[5] = 0x03;
+ buf[6] = 0x49;
+ buf[7] = led->number;
+ buf[8] = br;
+ buf[9] = 0x00;
+ buf[10] = 0;
+ buf[11] = 0;
+ buf[12] = 0;
+ buf[13] = 0;
+
+ ret = hid_hw_output_report(led->hdev, buf, 14);
+
+ mutex_unlock(&data->lock);
+
+ return ret;
+}
+
+static int winwing_init_led(struct hid_device *hdev,
+ struct input_dev *input)
+{
+ struct winwing_drv_data *data;
+ struct winwing_led *led;
+ int ret;
+ int i;
+
+ size_t data_size = struct_size(data, leds, 3);
+
+ data = devm_kzalloc(&hdev->dev, data_size, GFP_KERNEL);
+
+ if (!data)
+ return -ENOMEM;
+
+ data->report_buf = devm_kmalloc(&hdev->dev, MAX_REPORT, GFP_KERNEL);
+
+ if (!data->report_buf)
+ return -ENOMEM;
+
+ for (i = 0; i < 3; i += 1) {
+ struct winwing_led_info *info = &led_info[i];
+
+ led = &data->leds[i];
+ led->hdev = hdev;
+ led->number = info->number;
+ led->cdev.max_brightness = info->max_brightness;
+ led->cdev.brightness_set_blocking = winwing_led_write;
+ led->cdev.flags = LED_HW_PLUGGABLE;
+ led->cdev.name = devm_kasprintf(&hdev->dev, GFP_KERNEL,
+ "%s::%s",
+ dev_name(&input->dev),
+ info->led_name);
+
+ ret = devm_led_classdev_register(&hdev->dev, &led->cdev);
+ if (ret)
+ return ret;
+ }
+
+ hid_set_drvdata(hdev, data);
+
+ return ret;
+}
+
+static int winwing_probe(struct hid_device *hdev,
+ const struct hid_device_id *id)
+{
+ unsigned int minor;
+ int ret;
+
+ ret = hid_parse(hdev);
+ if (ret) {
+ hid_err(hdev, "parse failed\n");
+ return ret;
+ }
+
+ ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
+ if (ret) {
+ hid_err(hdev, "hw start failed\n");
+ return ret;
+ }
+
+ minor = ((struct hidraw *) hdev->hidraw)->minor;
+
+ return 0;
+}
+
+static int winwing_input_configured(struct hid_device *hdev,
+ struct hid_input *hidinput)
+{
+ int ret;
+
+ ret = winwing_init_led(hdev, hidinput->input);
+
+ if (ret)
+ hid_err(hdev, "led init failed\n");
+
+ return ret;
+}
+
+static __u8 original_rdesc_buttons[] = {
+ 0x05, 0x09, 0x19, 0x01, 0x29, 0x6F,
+ 0x15, 0x00, 0x25, 0x01, 0x35, 0x00,
+ 0x45, 0x01, 0x75, 0x01, 0x95, 0x6F,
+ 0x81, 0x02, 0x75, 0x01, 0x95, 0x01,
+ 0x81, 0x01
+};
+
+/*
+ * HID report descriptor shows 111 buttons, which exceeds maximum
+ * number of buttons (80) supported by Linux kernel HID subsystem.
+ *
+ * This module skips numbers 32-63, unused on some throttle grips.
+ */
+
+static __u8 *winwing_report_fixup(struct hid_device *hdev, __u8 *rdesc,
+ unsigned int *rsize)
+{
+ int sig_length = sizeof(original_rdesc_buttons);
+ int unused_button_numbers = 32;
+
+ if (*rsize < 34)
+ return rdesc;
+
+ if (memcmp(rdesc + 8, original_rdesc_buttons, sig_length) == 0) {
+
+ /* Usage Maximum */
+ rdesc[13] -= unused_button_numbers;
+
+ /* Report Count for buttons */
+ rdesc[25] -= unused_button_numbers;
+
+ /* Report Count for padding [HID1_11, 6.2.2.9] */
+ rdesc[31] += unused_button_numbers;
+
+ hid_info(hdev, "winwing descriptor fixed\n");
+ }
+
+ return rdesc;
+}
+
+static int winwing_raw_event(struct hid_device *hdev,
+ struct hid_report *report, u8 *raw_data, int size)
+{
+ if (size >= 15) {
+ /* Skip buttons 32 .. 63 */
+ memmove(raw_data + 5, raw_data + 9, 6);
+
+ /* Clear the padding */
+ memset(raw_data + 11, 0, 4);
+ }
+
+ return 0;
+}
+
+static const struct hid_device_id winwing_devices[] = {
+ { HID_USB_DEVICE(0x4098, 0xbe62) }, /* TGRIP-18 */
+ { HID_USB_DEVICE(0x4098, 0xbe68) }, /* TGRIP-16EX */
+ {}
+};
+
+MODULE_DEVICE_TABLE(hid, winwing_devices);
+
+static struct hid_driver winwing_driver = {
+ .name = "winwing",
+ .id_table = winwing_devices,
+ .probe = winwing_probe,
+ .input_configured = winwing_input_configured,
+ .report_fixup = winwing_report_fixup,
+ .raw_event = winwing_raw_event,
+};
+module_hid_driver(winwing_driver);
+
+MODULE_LICENSE("GPL");