This device has a quirky initialization process.
Depending on how it was initialized, behaves completely differently.
In default mode, it behaves as expected, but in fallback it disables
force-feedback, analog stick configurations and L3/R3.
Signed-off-by: Huseyin BIYIK <huseyinbiyik@xxxxxxxxxxx>
Signed-off-by: Mubashshir <ahmubashshir@xxxxxxxxx>
---
drivers/hid/Kconfig | 19 +++
drivers/hid/Makefile | 1 +
drivers/hid/hid-ids.h | 3 +
drivers/hid/hid-shanwan.c | 256 ++++++++++++++++++++++++++++++++++++++
4 files changed, 279 insertions(+)
create mode 100644 drivers/hid/hid-shanwan.c
diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig
index 82f64fb31fda..a17db9c9694c 100644
--- a/drivers/hid/Kconfig
+++ b/drivers/hid/Kconfig
@@ -990,6 +990,25 @@ config HID_SEMITEK
- Woo-dy
- X-Bows Nature/Knight
+config HID_SHANWAN
+ tristate "ShanWan USB WirelessGamepad"
+ depends on USB_HID
+ help
+ Support for Shanwan USB WirelessGamepad (and clones).
+
+ This device has a quirky initialization process.
+ Depending on how it was initialized, it behaves completely differently.
+ In default mode, it behaves as expected, but in fallback it disables
+ force-feedback, analog stick configurations and L3/R3.
+
+config SHANWAN_FF
+ bool "ShanWan USB WirelessGamepad force feedback support"
+ depends on HID_SHANWAN
+ select INPUT_FF_MEMLESS
+ help
+ Say Y here if you have a ShanWan USB WirelessGamepad and want to enable
+ force feedback support for it.
+
config HID_SIGMAMICRO
tristate "SiGma Micro-based keyboards"
depends on USB_HID
diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile
index 5d37cacbde33..52878455fc10 100644
--- a/drivers/hid/Makefile
+++ b/drivers/hid/Makefile
@@ -116,6 +116,7 @@ obj-$(CONFIG_HID_RMI) += hid-rmi.o
obj-$(CONFIG_HID_SAITEK) += hid-saitek.o
obj-$(CONFIG_HID_SAMSUNG) += hid-samsung.o
obj-$(CONFIG_HID_SEMITEK) += hid-semitek.o
+obj-$(CONFIG_HID_SHANWAN) += hid-shanwan.o
obj-$(CONFIG_HID_SIGMAMICRO) += hid-sigmamicro.o
obj-$(CONFIG_HID_SMARTJOYPLUS) += hid-sjoy.o
obj-$(CONFIG_HID_SONY) += hid-sony.o
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index 63545cd307e5..278914e37eb7 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -623,6 +623,9 @@
#define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_0641 0x0641
#define USB_PRODUCT_ID_HP_PIXART_OEM_USB_OPTICAL_MOUSE_1f4a 0x1f4a
+#define USB_VENDOR_ID_SHANWAN 0x2563
+#define USB_PRODUCT_ID_SHANWAN_USB_WIRELESSGAMEPAD 0x0575
+
#define USB_VENDOR_ID_HUION 0x256c
#define USB_DEVICE_ID_HUION_TABLET 0x006e
#define USB_DEVICE_ID_HUION_TABLET2 0x006d
diff --git a/drivers/hid/hid-shanwan.c b/drivers/hid/hid-shanwan.c
new file mode 100644
index 000000000000..6c91a4d79036
--- /dev/null
+++ b/drivers/hid/hid-shanwan.c
@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Force feedback support for Shanwan USB WirelessGamepad
+ *
+ * Copyright (c) 2022-2023 Huseyin BIYIK <huseyinbiyik@xxxxxxxxxxx>
+ * Copyright (c) 2023 Ahmad Hasan Mubashshir <ahmubashshir@xxxxxxxxx>
+ *
+ * mapping according to Gamepad Protocol
+ *
+ * Button 01: BTN_SOUTH (CROSS)
+ * Button 02: BTN_EAST(CIRCLE)
+ * Button 03: BTN_NORTH (TRIANGLE)
+ * Button 04: BTN_WEST (SQUARE)
+ * Button 05: BTL_TL (L1)
+ * Button 06: BTM_TR (R1)
+ * Button 07: BTN_TL2 (L2)
+ * Button 08: BTN_TR2 (R2)
+ * Button 09: BTN_SELECT
+ * Button 10: BTN_START
+ * Button 11: BTN_MODE
+ * Button 12: BTN_THUMBL (LS1)
+ * Button 13: BTN_THUMBR (LS1)
+ * LS1: X/Y AXIS
+ * LS2: Rx/Ry AXIS
+ * R2/L2 Touch Sensors: R/Rz
+ */
+
+#include <linux/input.h>
+#include <linux/slab.h>
+#include <linux/hid.h>
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/moduleparam.h>
+
+#include "hid-ids.h"
+
+#define PID0575_RDESC_ORIG_SIZE 137
+
+static bool swap_motors;
+module_param_named(swap, swap_motors, bool, 0);
+MODULE_PARM_DESC(swap, "Swap Weak/Strong Feedback motors");
+
+static __u8 pid0575_rdesc_fixed[] = {
+ 0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
+ 0x09, 0x05, // Usage (Game Pad)
+ 0xA1, 0x01, // Collection (Application)
+ 0x15, 0x00, // Logical Minimum (0)
+ 0x25, 0x01, // Logical Maximum (1)
+ 0x35, 0x00, // Physical Minimum (0)
+ 0x45, 0x01, // Physical Maximum (1)
+ 0x75, 0x01, // Report Size (1)
+ 0x95, 0x0D, // Report Count (13)
+ 0x05, 0x09, // Usage Page (Button)
+ 0x09, 0x03, // Usage (BTN_NORTH)
+ 0x09, 0x02, // Usage (BTN_EAST)
+ 0x09, 0x01, // Usage (BTN_SOUTH)
+ 0x09, 0x04, // Usage (BTN_WEST)
+ 0x09, 0x05, // Usage (BTN_TL)
+ 0x09, 0x06, // Usage (BTN_TR)
+ 0x09, 0x07, // Usage (BTN_TL2)
+ 0x09, 0x08, // Usage (BTN_TR2)
+ 0x09, 0x09, // Usage (BTN_SELECT)
+ 0x09, 0x10, // Usage (BTN_START)
+ 0x09, 0x12, // Usage (BTN_THUMBL)
+ 0x09, 0x13, // Usage (BTN_THUMBR)
+ 0x09, 0x11, // Usage (BTN_MODE)
+ 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,PreferredState,NoNullPosition)
+ 0x75, 0x01, // Report Size (1)
+ 0x95, 0x03, // Report Count (3)
+ 0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,PreferredState,NoNullPosition)
+ 0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
+ 0x25, 0x07, // Logical Maximum (7)
+ 0x46, 0x3B, 0x01, // Physical Maximum (315)
+ 0x75, 0x04, // Report Size (4)
+ 0x95, 0x01, // Report Count (1)
+ 0x65, 0x14, // Unit (System: English Rotation, Length: Centimeter)
+ 0x09, 0x39, // Usage (Hat switch)
+ 0x81, 0x42, // Input (Data,Var,Abs,No Wrap,Linear,PreferredState,NullState)
+ 0x65, 0x00, // Unit (None)
+ 0x95, 0x01, // Report Count (1)
+ 0x81, 0x01, // Input(Const,Array,Abs,NoWrap,Linear,PreferredState,NoNullPosition)
+ 0x26, 0xFF, 0x00, // Logical Maximum (255)
+ 0x46, 0xFF, 0x00, // Physical Maximum (255)
+ 0x09, 0x30, // Usage (X)
+ 0x09, 0x31, // Usage (Y)
+ 0x09, 0x33, // Usage (Rx)
+ 0x09, 0x34, // Usage (Ry)
+ 0x75, 0x08, // Report Size (8)
+ 0x95, 0x04, // Report Count (4)
+ 0x81, 0x02, // Input (Data,Var,Abs,No Wrap,Linear,PreferredState,NoNullPosition)
+ 0x95, 0x0A, // Report Count (10)
+ 0x81, 0x01, // Input (Const,Array,Abs,No Wrap,Linear,PreferredState,NoNullPosition)
+ 0x05, 0x01, // Usage Page (Generic Desktop Ctrls)
+ 0x26, 0xFF, 0x00, // Logical Maximum (255)
+ 0x46, 0xFF, 0x00, // Physical Maximum (255)
+ 0x09, 0x32, // Usage (Z)
+ 0x09, 0x35, // Usage (Rz)
+ 0x95, 0x02, // Report Count (2)
+ 0x81, 0x02, // Input(Data,Var,Abs,No Wrap,Linear,Preferred State,No Null Position)
+ 0x95, 0x08, // Report Count (8)
+ 0x81, 0x01, // Input(Const,Array,Abs,NoWrap,Linear,PreferredState,NoNullPosition)
+ 0x06, 0x00, 0xFF, // Usage Page (Vendor Defined 0xFF00)
+ 0xB1, 0x02, // Feature(Data,Var,Abs,No Wrap,Linear,PreferredState,NoNullPosition,!volatile)
+ 0x0A, 0x21, 0x26, // Usage (0x2621)
+ 0x95, 0x08, // Report Count (8)
+ 0x91, 0x02, // Output(Data,Var,Abs,No Wrap,Linear,PreferredState,NoNullPosition,!volatile)
+ 0x0A, 0x21, 0x26, // Usage (0x2621)
+ 0x95, 0x08, // Report Count (8)
+ 0x81, 0x02, // Input(Data,Var,Abs,No Wrap,Linear,Preferred State,NoNullPosition)
+ 0xC0, // End Collection
+};
+
+struct shanwan_device {
+ struct hid_report *report;
+};
+
+#ifdef CONFIG_SHANWAN_FF
+static int shanwan_play_effect(struct input_dev *dev, void *data, struct ff_effect *effect)
+{
+ struct hid_device *hid = input_get_drvdata(dev);
+ struct shanwan_device *shanwan = data;
+ struct hid_report *report = shanwan->report;
+
+ if (effect->type != FF_RUMBLE)
+ return 0;
+
+ report->field[0]->value[0] = 0x02; /* 2 = rumble effect message */
+ report->field[0]->value[1] = 0x08; /* reserved value, always 8 */
+ if (swap_motors) {
+ /* weak rumble / strong rumble */
+ report->field[0]->value[2] = effect->u.rumble.strong_magnitude / 256;
+ report->field[0]->value[3] = effect->u.rumble.weak_magnitude / 256;
+ } else {
+ /* strong rumble / weak rumble */
+ report->field[0]->value[2] = effect->u.rumble.weak_magnitude / 256;
+ report->field[0]->value[3] = effect->u.rumble.strong_magnitude / 256;
+ }
+ report->field[0]->value[4] = 0xff; /* duration 0-254 (255 = nonstop) */
+ report->field[0]->value[5] = 0x00; /* padding */
+ report->field[0]->value[6] = 0x00; /* padding */
+ report->field[0]->value[7] = 0x00; /* padding */
+ hid_hw_request(hid, report, HID_REQ_SET_REPORT);
+
+ return 0;
+}
+
+static int shanwan_init_ff(struct hid_device *hid)
+{
+ struct shanwan_device *shanwan;
+ struct hid_report *report;
+ struct hid_input *hidinput;
+ struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
+ struct input_dev *dev;
+
+ if (list_empty(&hid->inputs)) {
+ hid_err(hid, "no inputs found\n");
+ return -ENODEV;
+ }
+ hidinput = list_first_entry(&hid->inputs, struct hid_input, list);
+ dev = hidinput->input;
+
+ if (list_empty(report_list)) {
+ hid_err(hid, "no output reports found\n");
+ return -ENODEV;
+ }
+
+ report = list_first_entry(report_list, struct hid_report, list);
+
+ shanwan = kzalloc(sizeof(*shanwan), GFP_KERNEL);
+ if (!shanwan)
+ return -ENOMEM;
+
+ set_bit(FF_RUMBLE, dev->ffbit);
+
+ if (input_ff_create_memless(dev, shanwan, shanwan_play_effect)) {
+ kfree(shanwan);
+ return -ENODEV;
+ }
+
+ shanwan->report = report;
+
+ return 0;
+}
+#else
+static int shanwan_init_ff(struct hid_device *hid)
+{
+ return 0
+}
+#endif
+
+static int shanwan_probe(struct hid_device *hdev, const struct hid_device_id *id)
+{
+ int error;
+
+ error = hid_parse(hdev);
+ if (error) {
+ hid_err(hdev, "parse failed\n");
+ return error;
+ }
+
+ error = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF);
+ if (error) {
+ hid_err(hdev, "hw start failed\n");
+ return error;
+ }
+
+ error = shanwan_init_ff(hdev);
+ if (error)
+ hid_warn(hdev, "Failed to enable force feedback support, error: %d\n", error);
+
+ error = hid_hw_open(hdev);
+ if (error) {
+ dev_err(&hdev->dev, "hw open failed\n");
+ hid_hw_stop(hdev);
+ return error;
+ }
+
+ return 0;
+}
+
+static void shanwan_remove(struct hid_device *hdev)
+{
+ hid_hw_close(hdev);
+ hid_hw_stop(hdev);
+}
+
+static __u8 *shanwan_report_fixup(struct hid_device *hid, __u8 *rdesc, unsigned int *rsize)
+{
+ if (*rsize == PID0575_RDESC_ORIG_SIZE) {
+ rdesc = pid0575_rdesc_fixed;
+ *rsize = sizeof(pid0575_rdesc_fixed);
+ } else {
+ hid_warn(hid, "unexpected rdesc, please submit for review\n");
+ }
+ return rdesc;
+}
+
+static const struct hid_device_id shanwan_devices[] = {
+ { HID_USB_DEVICE(USB_VENDOR_ID_SHANWAN, USB_PRODUCT_ID_SHANWAN_USB_WIRELESSGAMEPAD) },
+ { }
+};
+MODULE_DEVICE_TABLE(hid, shanwan_devices);
+
+static struct hid_driver shanwan_driver = {
+ .name = "shanwan",
+ .id_table = shanwan_devices,
+ .probe = shanwan_probe,
+ .report_fixup = shanwan_report_fixup,
+ .remove = shanwan_remove,
+};
+module_hid_driver(shanwan_driver);
+
+MODULE_AUTHOR("Huseyin BIYIK <huseyinbiyik@xxxxxxxxxxx>");
+MODULE_AUTHOR("Ahmad Hasan Mubashshir <ahmubashshir@xxxxxxxxx>")
+MODULE_DESCRIPTION("Force feedback support for Shanwan USB WirelessGamepad");
+MODULE_LICENSE("GPL");
--
2.40.0
