diff options
Diffstat (limited to 'drivers/hid/hid-betopff.c')
| -rw-r--r-- | drivers/hid/hid-betopff.c | 165 |
1 files changed, 165 insertions, 0 deletions
diff --git a/drivers/hid/hid-betopff.c b/drivers/hid/hid-betopff.c new file mode 100644 index 0000000000..25ed7b9a91 --- /dev/null +++ b/drivers/hid/hid-betopff.c @@ -0,0 +1,165 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * Force feedback support for Betop based devices + * + * The devices are distributed under various names and the same USB device ID + * can be used in both adapters and actual game controllers. + * + * 0x11c2:0x2208 "BTP2185 BFM mode Joystick" + * - tested with BTP2185 BFM Mode. + * + * 0x11C0:0x5506 "BTP2185 PC mode Joystick" + * - tested with BTP2185 PC Mode. + * + * 0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad" + * - tested with BTP2185 PC Mode with another version. + * + * 0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick" + * - tested with BTP2171s. + * Copyright (c) 2014 Huang Bo <huangbobupt@163.com> + */ + +/* + */ + + +#include <linux/input.h> +#include <linux/slab.h> +#include <linux/module.h> +#include <linux/hid.h> + +#include "hid-ids.h" + +struct betopff_device { + struct hid_report *report; +}; + +static int hid_betopff_play(struct input_dev *dev, void *data, + struct ff_effect *effect) +{ + struct hid_device *hid = input_get_drvdata(dev); + struct betopff_device *betopff = data; + __u16 left, right; + + left = effect->u.rumble.strong_magnitude; + right = effect->u.rumble.weak_magnitude; + + betopff->report->field[2]->value[0] = left / 256; + betopff->report->field[3]->value[0] = right / 256; + + hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT); + + return 0; +} + +static int betopff_init(struct hid_device *hid) +{ + struct betopff_device *betopff; + 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; + int error; + int i, j; + + 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); + /* + * Actually there are 4 fields for 4 Bytes as below: + * ----------------------------------------- + * Byte0 Byte1 Byte2 Byte3 + * 0x00 0x00 left_motor right_motor + * ----------------------------------------- + * Do init them with default value. + */ + if (report->maxfield < 4) { + hid_err(hid, "not enough fields in the report: %d\n", + report->maxfield); + return -ENODEV; + } + for (i = 0; i < report->maxfield; i++) { + if (report->field[i]->report_count < 1) { + hid_err(hid, "no values in the field\n"); + return -ENODEV; + } + for (j = 0; j < report->field[i]->report_count; j++) { + report->field[i]->value[j] = 0x00; + } + } + + betopff = kzalloc(sizeof(*betopff), GFP_KERNEL); + if (!betopff) + return -ENOMEM; + + set_bit(FF_RUMBLE, dev->ffbit); + + error = input_ff_create_memless(dev, betopff, hid_betopff_play); + if (error) { + kfree(betopff); + return error; + } + + betopff->report = report; + hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT); + + hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n"); + + return 0; +} + +static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + + if (id->driver_data) + hdev->quirks |= HID_QUIRK_MULTI_INPUT; + + ret = hid_parse(hdev); + if (ret) { + hid_err(hdev, "parse failed\n"); + goto err; + } + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); + if (ret) { + hid_err(hdev, "hw start failed\n"); + goto err; + } + + betopff_init(hdev); + + return 0; +err: + return ret; +} + +static const struct hid_device_id betop_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) }, + { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) }, + { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) }, + { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) }, + { } +}; +MODULE_DEVICE_TABLE(hid, betop_devices); + +static struct hid_driver betop_driver = { + .name = "betop", + .id_table = betop_devices, + .probe = betop_probe, +}; +module_hid_driver(betop_driver); + +MODULE_LICENSE("GPL"); |