| /* |
| * HID driver for some cherry "special" devices |
| * |
| * Copyright (c) 1999 Andreas Gal |
| * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> |
| * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc |
| * Copyright (c) 2006-2007 Jiri Kosina |
| * Copyright (c) 2008 Jiri Slaby |
| */ |
| |
| /* |
| * This program is free software; you can redistribute it and/or modify it |
| * under the terms of the GNU General Public License as published by the Free |
| * Software Foundation; either version 2 of the License, or (at your option) |
| * any later version. |
| */ |
| |
| #include <linux/device.h> |
| #include <linux/hid.h> |
| #include <linux/module.h> |
| |
| #include "hid-ids.h" |
| |
| /* |
| * Cherry Cymotion keyboard have an invalid HID report descriptor, |
| * that needs fixing before we can parse it. |
| */ |
| static __u8 *ch_report_fixup(struct hid_device *hdev, __u8 *rdesc, |
| unsigned int *rsize) |
| { |
| if (*rsize >= 18 && rdesc[11] == 0x3c && rdesc[12] == 0x02) { |
| hid_info(hdev, "fixing up Cherry Cymotion report descriptor\n"); |
| rdesc[11] = rdesc[16] = 0xff; |
| rdesc[12] = rdesc[17] = 0x03; |
| } |
| return rdesc; |
| } |
| |
| #define ch_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \ |
| EV_KEY, (c)) |
| static int ch_input_mapping(struct hid_device *hdev, struct hid_input *hi, |
| struct hid_field *field, struct hid_usage *usage, |
| unsigned long **bit, int *max) |
| { |
| if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) |
| return 0; |
| |
| switch (usage->hid & HID_USAGE) { |
| case 0x301: ch_map_key_clear(KEY_PROG1); break; |
| case 0x302: ch_map_key_clear(KEY_PROG2); break; |
| case 0x303: ch_map_key_clear(KEY_PROG3); break; |
| default: |
| return 0; |
| } |
| |
| return 1; |
| } |
| |
| static const struct hid_device_id ch_devices[] = { |
| { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION) }, |
| { HID_USB_DEVICE(USB_VENDOR_ID_CHERRY, USB_DEVICE_ID_CHERRY_CYMOTION_SOLAR) }, |
| { } |
| }; |
| MODULE_DEVICE_TABLE(hid, ch_devices); |
| |
| static struct hid_driver ch_driver = { |
| .name = "cherry", |
| .id_table = ch_devices, |
| .report_fixup = ch_report_fixup, |
| .input_mapping = ch_input_mapping, |
| }; |
| module_hid_driver(ch_driver); |
| |
| MODULE_LICENSE("GPL"); |