projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 52cd7785 JK |
1 | /* |
| 2 | * Force feedback support for Betop based devices | |
| 3 | * | |
| 4 | * The devices are distributed under various names and the same USB device ID | |
| 5 | * can be used in both adapters and actual game controllers. | |
| 6 | * | |
| 7 | * 0x11c2:0x2208 "BTP2185 BFM mode Joystick" | |
| 8 | * - tested with BTP2185 BFM Mode. | |
| 9 | * | |
| 10 | * 0x11C0:0x5506 "BTP2185 PC mode Joystick" | |
| 11 | * - tested with BTP2185 PC Mode. | |
| 12 | * | |
| 13 | * 0x8380:0x1850 "BTP2185 V2 PC mode USB Gamepad" | |
| 14 | * - tested with BTP2185 PC Mode with another version. | |
| 15 | * | |
| 16 | * 0x20bc:0x5500 "BTP2185 V2 BFM mode Joystick" | |
| 17 | * - tested with BTP2171s. | |
| 18 | * Copyright (c) 2014 Huang Bo <huangbobupt@163.com> | |
| 19 | */ | |
| 20 | ||
| 21 | /* | |
| 22 | * This program is free software; you can redistribute it and/or modify it | |
| 23 | * under the terms of the GNU General Public License as published by the Free | |
| 24 | * Software Foundation; either version 2 of the License, or (at your option) | |
| 25 | * any later version. | |
| 26 | */ | |
| 27 | ||
| 28 | ||
| 29 | #include <linux/input.h> | |
| 30 | #include <linux/slab.h> | |
| 31 | #include <linux/module.h> | |
| 32 | #include <linux/hid.h> | |
| 33 | ||
| 34 | #include "hid-ids.h" | |
| 35 | ||
| 36 | struct betopff_device { | |
| 37 | struct hid_report *report; | |
| 38 | }; | |
| 39 | ||
| 40 | static int hid_betopff_play(struct input_dev *dev, void *data, | |
| 41 | struct ff_effect *effect) | |
| 42 | { | |
| 43 | struct hid_device *hid = input_get_drvdata(dev); | |
| 44 | struct betopff_device *betopff = data; | |
| 45 | __u16 left, right; | |
| 46 | ||
| 47 | left = effect->u.rumble.strong_magnitude; | |
| 48 | right = effect->u.rumble.weak_magnitude; | |
| 49 | ||
| 50 | betopff->report->field[2]->value[0] = left / 256; | |
| 51 | betopff->report->field[3]->value[0] = right / 256; | |
| 52 | ||
| 53 | hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT); | |
| 54 | ||
| 55 | return 0; | |
| 56 | } | |
| 57 | ||
| 58 | static int betopff_init(struct hid_device *hid) | |
| 59 | { | |
| 60 | struct betopff_device *betopff; | |
| 61 | struct hid_report *report; | |
| 62 | struct hid_input *hidinput = | |
| 63 | list_first_entry(&hid->inputs, struct hid_input, list); | |
| 64 | struct list_head *report_list = | |
| 65 | &hid->report_enum[HID_OUTPUT_REPORT].report_list; | |
| 66 | struct input_dev *dev = hidinput->input; | |
| 67 | int field_count = 0; | |
| 68 | int error; | |
| 69 | int i, j; | |
| 70 | ||
| 71 | if (list_empty(report_list)) { | |
| 72 | hid_err(hid, "no output reports found\n"); | |
| 73 | return -ENODEV; | |
| 74 | } | |
| 75 | ||
| 76 | report = list_first_entry(report_list, struct hid_report, list); | |
| 77 | /* | |
| 78 | * Actually there are 4 fields for 4 Bytes as below: | |
| 79 | * ----------------------------------------- | |
| 80 | * Byte0 Byte1 Byte2 Byte3 | |
| 81 | * 0x00 0x00 left_motor right_motor | |
| 82 | * ----------------------------------------- | |
| 83 | * Do init them with default value. | |
| 84 | */ | |
| 85 | for (i = 0; i < report->maxfield; i++) { | |
| 86 | for (j = 0; j < report->field[i]->report_count; j++) { | |
| 87 | report->field[i]->value[j] = 0x00; | |
| 88 | field_count++; | |
| 89 | } | |
| 90 | } | |
| 91 | ||
| 92 | if (field_count < 4) { | |
| 93 | hid_err(hid, "not enough fields in the report: %d\n", | |
| 94 | field_count); | |
| 95 | return -ENODEV; | |
| 96 | } | |
| 97 | ||
| 98 | betopff = kzalloc(sizeof(*betopff), GFP_KERNEL); | |
| 99 | if (!betopff) | |
| 100 | return -ENOMEM; | |
| 101 | ||
| 102 | set_bit(FF_RUMBLE, dev->ffbit); | |
| 103 | ||
| 104 | error = input_ff_create_memless(dev, betopff, hid_betopff_play); | |
| 105 | if (error) { | |
| 106 | kfree(betopff); | |
| 107 | return error; | |
| 108 | } | |
| 109 | ||
| 110 | betopff->report = report; | |
| 111 | hid_hw_request(hid, betopff->report, HID_REQ_SET_REPORT); | |
| 112 | ||
| 113 | hid_info(hid, "Force feedback for betop devices by huangbo <huangbobupt@163.com>\n"); | |
| 114 | ||
| 115 | return 0; | |
| 116 | } | |
| 117 | ||
| 118 | static int betop_probe(struct hid_device *hdev, const struct hid_device_id *id) | |
| 119 | { | |
| 120 | int ret; | |
| 121 | ||
| 122 | if (id->driver_data) | |
| 123 | hdev->quirks |= HID_QUIRK_MULTI_INPUT; | |
| 124 | ||
| 125 | ret = hid_parse(hdev); | |
| 126 | if (ret) { | |
| 127 | hid_err(hdev, "parse failed\n"); | |
| 128 | goto err; | |
| 129 | } | |
| 130 | ||
| 131 | ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT & ~HID_CONNECT_FF); | |
| 132 | if (ret) { | |
| 133 | hid_err(hdev, "hw start failed\n"); | |
| 134 | goto err; | |
| 135 | } | |
| 136 | ||
| 137 | betopff_init(hdev); | |
| 138 | ||
| 139 | return 0; | |
| 140 | err: | |
| 141 | return ret; | |
| 142 | } | |
| 143 | ||
| 144 | static const struct hid_device_id betop_devices[] = { | |
| 145 | { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185BFM, 0x2208) }, | |
| 146 | { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185PC, 0x5506) }, | |
| 147 | { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2PC, 0x1850) }, | |
| 148 | { HID_USB_DEVICE(USB_VENDOR_ID_BETOP_2185V2BFM, 0x5500) }, | |
| 149 | { } | |
| 150 | }; | |
| 151 | MODULE_DEVICE_TABLE(hid, betop_devices); | |
| 152 | ||
| 153 | static struct hid_driver betop_driver = { | |
| 154 | .name = "betop", | |
| 155 | .id_table = betop_devices, | |
| 156 | .probe = betop_probe, | |
| 157 | }; | |
| 158 | module_hid_driver(betop_driver); | |
| 159 | ||
| 160 | MODULE_LICENSE("GPL"); |