| Simon Wood | 75dbb95 | 2013-01-31 08:07:07 -0700 | [diff] [blame] | 1 | /* |
| 2 | * HID driver for Steelseries SRW-S1 |
| 3 | * |
| 4 | * Copyright (c) 2013 Simon Wood |
| 5 | */ |
| 6 | |
| 7 | /* |
| 8 | * This program is free software; you can redistribute it and/or modify it |
| 9 | * under the terms of the GNU General Public License as published by the Free |
| 10 | * Software Foundation; either version 2 of the License, or (at your option) |
| 11 | * any later version. |
| 12 | */ |
| 13 | |
| 14 | #include <linux/device.h> |
| 15 | #include <linux/hid.h> |
| 16 | #include <linux/module.h> |
| 17 | |
| 18 | #include "hid-ids.h" |
| 19 | |
| Simon Wood | 5492606 | 2013-01-31 08:07:08 -0700 | [diff] [blame^] | 20 | /* Fixed report descriptor for Steelseries SRW-S1 wheel controller |
| 21 | * |
| 22 | * The original descriptor hides the sensitivity and assists dials |
| 23 | * a custom vendor usage page. This inserts a patch to make them |
| 24 | * appear in the 'Generic Desktop' usage. |
| 25 | */ |
| 26 | |
| 27 | static __u8 steelseries_srws1_rdesc_fixed[] = { |
| 28 | 0x05, 0x01, /* Usage Page (Desktop) */ |
| 29 | 0x09, 0x08, /* Usage (MultiAxis), Changed */ |
| 30 | 0xA1, 0x01, /* Collection (Application), */ |
| 31 | 0xA1, 0x02, /* Collection (Logical), */ |
| 32 | 0x95, 0x01, /* Report Count (1), */ |
| 33 | 0x05, 0x01, /* Changed Usage Page (Desktop), */ |
| 34 | 0x09, 0x30, /* Changed Usage (X), */ |
| 35 | 0x16, 0xF8, 0xF8, /* Logical Minimum (-1800), */ |
| 36 | 0x26, 0x08, 0x07, /* Logical Maximum (1800), */ |
| 37 | 0x65, 0x14, /* Unit (Degrees), */ |
| 38 | 0x55, 0x0F, /* Unit Exponent (15), */ |
| 39 | 0x75, 0x10, /* Report Size (16), */ |
| 40 | 0x81, 0x02, /* Input (Variable), */ |
| 41 | 0x09, 0x31, /* Changed Usage (Y), */ |
| 42 | 0x15, 0x00, /* Logical Minimum (0), */ |
| 43 | 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */ |
| 44 | 0x75, 0x0C, /* Report Size (12), */ |
| 45 | 0x81, 0x02, /* Input (Variable), */ |
| 46 | 0x09, 0x32, /* Changed Usage (Z), */ |
| 47 | 0x15, 0x00, /* Logical Minimum (0), */ |
| 48 | 0x26, 0xFF, 0x03, /* Logical Maximum (1023), */ |
| 49 | 0x75, 0x0C, /* Report Size (12), */ |
| 50 | 0x81, 0x02, /* Input (Variable), */ |
| 51 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 52 | 0x09, 0x39, /* Usage (Hat Switch), */ |
| 53 | 0x25, 0x07, /* Logical Maximum (7), */ |
| 54 | 0x35, 0x00, /* Physical Minimum (0), */ |
| 55 | 0x46, 0x3B, 0x01, /* Physical Maximum (315), */ |
| 56 | 0x65, 0x14, /* Unit (Degrees), */ |
| 57 | 0x75, 0x04, /* Report Size (4), */ |
| 58 | 0x95, 0x01, /* Report Count (1), */ |
| 59 | 0x81, 0x02, /* Input (Variable), */ |
| 60 | 0x25, 0x01, /* Logical Maximum (1), */ |
| 61 | 0x45, 0x01, /* Physical Maximum (1), */ |
| 62 | 0x65, 0x00, /* Unit, */ |
| 63 | 0x75, 0x01, /* Report Size (1), */ |
| 64 | 0x95, 0x03, /* Report Count (3), */ |
| 65 | 0x81, 0x01, /* Input (Constant), */ |
| 66 | 0x05, 0x09, /* Usage Page (Button), */ |
| 67 | 0x19, 0x01, /* Usage Minimum (01h), */ |
| 68 | 0x29, 0x11, /* Usage Maximum (11h), */ |
| 69 | 0x95, 0x11, /* Report Count (17), */ |
| 70 | 0x81, 0x02, /* Input (Variable), */ |
| 71 | /* ---- Dial patch starts here ---- */ |
| 72 | 0x05, 0x01, /* Usage Page (Desktop), */ |
| 73 | 0x09, 0x33, /* Usage (RX), */ |
| 74 | 0x75, 0x04, /* Report Size (4), */ |
| 75 | 0x95, 0x02, /* Report Count (2), */ |
| 76 | 0x15, 0x00, /* Logical Minimum (0), */ |
| 77 | 0x25, 0x0b, /* Logical Maximum (b), */ |
| 78 | 0x81, 0x02, /* Input (Variable), */ |
| 79 | 0x09, 0x35, /* Usage (RZ), */ |
| 80 | 0x75, 0x04, /* Report Size (4), */ |
| 81 | 0x95, 0x01, /* Report Count (1), */ |
| 82 | 0x25, 0x03, /* Logical Maximum (3), */ |
| 83 | 0x81, 0x02, /* Input (Variable), */ |
| 84 | /* ---- Dial patch ends here ---- */ |
| 85 | 0x06, 0x00, 0xFF, /* Usage Page (FF00h), */ |
| 86 | 0x09, 0x01, /* Usage (01h), */ |
| 87 | 0x75, 0x04, /* Changed Report Size (4), */ |
| 88 | 0x95, 0x0D, /* Changed Report Count (13), */ |
| 89 | 0x81, 0x02, /* Input (Variable), */ |
| 90 | 0xC0, /* End Collection, */ |
| 91 | 0xA1, 0x02, /* Collection (Logical), */ |
| 92 | 0x09, 0x02, /* Usage (02h), */ |
| 93 | 0x75, 0x08, /* Report Size (8), */ |
| 94 | 0x95, 0x10, /* Report Count (16), */ |
| 95 | 0x91, 0x02, /* Output (Variable), */ |
| 96 | 0xC0, /* End Collection, */ |
| 97 | 0xC0 /* End Collection */ |
| 98 | }; |
| 99 | |
| Simon Wood | 75dbb95 | 2013-01-31 08:07:07 -0700 | [diff] [blame] | 100 | static __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
| 101 | unsigned int *rsize) |
| 102 | { |
| 103 | if (*rsize >= 115 && rdesc[11] == 0x02 && rdesc[13] == 0xc8 |
| 104 | && rdesc[29] == 0xbb && rdesc[40] == 0xc5) { |
| 105 | hid_info(hdev, "Fixing up Steelseries SRW-S1 report descriptor\n"); |
| Simon Wood | 5492606 | 2013-01-31 08:07:08 -0700 | [diff] [blame^] | 106 | rdesc = steelseries_srws1_rdesc_fixed; |
| 107 | *rsize = sizeof(steelseries_srws1_rdesc_fixed); |
| Simon Wood | 75dbb95 | 2013-01-31 08:07:07 -0700 | [diff] [blame] | 108 | } |
| 109 | return rdesc; |
| 110 | } |
| 111 | |
| 112 | static const struct hid_device_id steelseries_srws1_devices[] = { |
| 113 | { HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) }, |
| 114 | { } |
| 115 | }; |
| 116 | MODULE_DEVICE_TABLE(hid, steelseries_srws1_devices); |
| 117 | |
| 118 | static struct hid_driver steelseries_srws1_driver = { |
| 119 | .name = "steelseries_srws1", |
| 120 | .id_table = steelseries_srws1_devices, |
| 121 | .report_fixup = steelseries_srws1_report_fixup |
| 122 | }; |
| 123 | |
| 124 | static int __init steelseries_srws1_init(void) |
| 125 | { |
| 126 | return hid_register_driver(&steelseries_srws1_driver); |
| 127 | } |
| 128 | |
| 129 | static void __exit steelseries_srws1_exit(void) |
| 130 | { |
| 131 | hid_unregister_driver(&steelseries_srws1_driver); |
| 132 | } |
| 133 | |
| 134 | module_init(steelseries_srws1_init); |
| 135 | module_exit(steelseries_srws1_exit); |
| 136 | MODULE_LICENSE("GPL"); |