2013-01-31 16:07:07 +01:00
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/*
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* HID driver for Steelseries SRW-S1
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*
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* Copyright (c) 2013 Simon Wood
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*/
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/*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the Free
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* Software Foundation; either version 2 of the License, or (at your option)
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* any later version.
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*/
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#include <linux/device.h>
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#include <linux/hid.h>
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#include <linux/module.h>
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#include "hid-ids.h"
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2013-01-31 16:07:08 +01:00
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/* Fixed report descriptor for Steelseries SRW-S1 wheel controller
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*
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* The original descriptor hides the sensitivity and assists dials
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* a custom vendor usage page. This inserts a patch to make them
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* appear in the 'Generic Desktop' usage.
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*/
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static __u8 steelseries_srws1_rdesc_fixed[] = {
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0x05, 0x01, /* Usage Page (Desktop) */
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0x09, 0x08, /* Usage (MultiAxis), Changed */
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0xA1, 0x01, /* Collection (Application), */
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0xA1, 0x02, /* Collection (Logical), */
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0x95, 0x01, /* Report Count (1), */
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0x05, 0x01, /* Changed Usage Page (Desktop), */
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0x09, 0x30, /* Changed Usage (X), */
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0x16, 0xF8, 0xF8, /* Logical Minimum (-1800), */
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0x26, 0x08, 0x07, /* Logical Maximum (1800), */
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0x65, 0x14, /* Unit (Degrees), */
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0x55, 0x0F, /* Unit Exponent (15), */
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0x75, 0x10, /* Report Size (16), */
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0x81, 0x02, /* Input (Variable), */
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0x09, 0x31, /* Changed Usage (Y), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
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0x75, 0x0C, /* Report Size (12), */
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0x81, 0x02, /* Input (Variable), */
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0x09, 0x32, /* Changed Usage (Z), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x26, 0xFF, 0x03, /* Logical Maximum (1023), */
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0x75, 0x0C, /* Report Size (12), */
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0x81, 0x02, /* Input (Variable), */
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0x05, 0x01, /* Usage Page (Desktop), */
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0x09, 0x39, /* Usage (Hat Switch), */
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0x25, 0x07, /* Logical Maximum (7), */
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0x35, 0x00, /* Physical Minimum (0), */
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0x46, 0x3B, 0x01, /* Physical Maximum (315), */
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0x65, 0x14, /* Unit (Degrees), */
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0x75, 0x04, /* Report Size (4), */
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0x95, 0x01, /* Report Count (1), */
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0x81, 0x02, /* Input (Variable), */
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0x25, 0x01, /* Logical Maximum (1), */
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0x45, 0x01, /* Physical Maximum (1), */
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0x65, 0x00, /* Unit, */
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0x75, 0x01, /* Report Size (1), */
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0x95, 0x03, /* Report Count (3), */
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0x81, 0x01, /* Input (Constant), */
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0x05, 0x09, /* Usage Page (Button), */
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0x19, 0x01, /* Usage Minimum (01h), */
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0x29, 0x11, /* Usage Maximum (11h), */
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0x95, 0x11, /* Report Count (17), */
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0x81, 0x02, /* Input (Variable), */
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/* ---- Dial patch starts here ---- */
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0x05, 0x01, /* Usage Page (Desktop), */
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0x09, 0x33, /* Usage (RX), */
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0x75, 0x04, /* Report Size (4), */
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0x95, 0x02, /* Report Count (2), */
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0x15, 0x00, /* Logical Minimum (0), */
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0x25, 0x0b, /* Logical Maximum (b), */
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0x81, 0x02, /* Input (Variable), */
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0x09, 0x35, /* Usage (RZ), */
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0x75, 0x04, /* Report Size (4), */
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0x95, 0x01, /* Report Count (1), */
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0x25, 0x03, /* Logical Maximum (3), */
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0x81, 0x02, /* Input (Variable), */
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/* ---- Dial patch ends here ---- */
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0x06, 0x00, 0xFF, /* Usage Page (FF00h), */
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0x09, 0x01, /* Usage (01h), */
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0x75, 0x04, /* Changed Report Size (4), */
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0x95, 0x0D, /* Changed Report Count (13), */
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0x81, 0x02, /* Input (Variable), */
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0xC0, /* End Collection, */
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0xA1, 0x02, /* Collection (Logical), */
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0x09, 0x02, /* Usage (02h), */
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0x75, 0x08, /* Report Size (8), */
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0x95, 0x10, /* Report Count (16), */
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0x91, 0x02, /* Output (Variable), */
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0xC0, /* End Collection, */
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0xC0 /* End Collection */
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};
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2013-01-31 16:07:07 +01:00
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static __u8 *steelseries_srws1_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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if (*rsize >= 115 && rdesc[11] == 0x02 && rdesc[13] == 0xc8
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&& rdesc[29] == 0xbb && rdesc[40] == 0xc5) {
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hid_info(hdev, "Fixing up Steelseries SRW-S1 report descriptor\n");
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2013-01-31 16:07:08 +01:00
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rdesc = steelseries_srws1_rdesc_fixed;
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*rsize = sizeof(steelseries_srws1_rdesc_fixed);
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2013-01-31 16:07:07 +01:00
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}
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return rdesc;
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}
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static const struct hid_device_id steelseries_srws1_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_STEELSERIES, USB_DEVICE_ID_STEELSERIES_SRWS1) },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, steelseries_srws1_devices);
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static struct hid_driver steelseries_srws1_driver = {
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.name = "steelseries_srws1",
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.id_table = steelseries_srws1_devices,
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.report_fixup = steelseries_srws1_report_fixup
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};
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static int __init steelseries_srws1_init(void)
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{
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return hid_register_driver(&steelseries_srws1_driver);
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}
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static void __exit steelseries_srws1_exit(void)
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{
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hid_unregister_driver(&steelseries_srws1_driver);
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}
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module_init(steelseries_srws1_init);
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module_exit(steelseries_srws1_exit);
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MODULE_LICENSE("GPL");
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