projects / mirror_ubuntu-artful-kernel.git / blame
| Commit | Line | Data |
|---|---|---|
| 1f243e30 JS |
1 | /* |
| 2 | * HID driver for some ezkey "special" devices | |
| 3 | * | |
| 4 | * Copyright (c) 1999 Andreas Gal | |
| 5 | * Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz> | |
| 6 | * Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc | |
| 7 | * Copyright (c) 2006-2007 Jiri Kosina | |
| 1f243e30 JS |
8 | * Copyright (c) 2008 Jiri Slaby |
| 9 | */ | |
| 10 | ||
| 11 | /* | |
| 12 | * This program is free software; you can redistribute it and/or modify it | |
| 13 | * under the terms of the GNU General Public License as published by the Free | |
| 14 | * Software Foundation; either version 2 of the License, or (at your option) | |
| 15 | * any later version. | |
| 16 | */ | |
| 17 | ||
| 18 | #include <linux/device.h> | |
| 19 | #include <linux/input.h> | |
| 20 | #include <linux/hid.h> | |
| 21 | #include <linux/module.h> | |
| 22 | ||
| 23 | #include "hid-ids.h" | |
| 24 | ||
| 25 | #define ez_map_rel(c) hid_map_usage(hi, usage, bit, max, EV_REL, (c)) | |
| 26 | #define ez_map_key(c) hid_map_usage(hi, usage, bit, max, EV_KEY, (c)) | |
| 27 | ||
| 28 | static int ez_input_mapping(struct hid_device *hdev, struct hid_input *hi, | |
| 29 | struct hid_field *field, struct hid_usage *usage, | |
| 30 | unsigned long **bit, int *max) | |
| 31 | { | |
| 32 | if ((usage->hid & HID_USAGE_PAGE) != HID_UP_CONSUMER) | |
| 33 | return 0; | |
| 34 | ||
| 35 | switch (usage->hid & HID_USAGE) { | |
| 36 | case 0x230: ez_map_key(BTN_MOUSE); break; | |
| 37 | case 0x231: ez_map_rel(REL_WHEEL); break; | |
| 38 | /* | |
| 39 | * this keyboard has a scrollwheel implemented in | |
| 40 | * totally broken way. We map this usage temporarily | |
| 41 | * to HWHEEL and handle it in the event quirk handler | |
| 42 | */ | |
| 43 | case 0x232: ez_map_rel(REL_HWHEEL); break; | |
| 44 | default: | |
| 45 | return 0; | |
| 46 | } | |
| 47 | return 1; | |
| 48 | } | |
| 49 | ||
| 50 | static int ez_event(struct hid_device *hdev, struct hid_field *field, | |
| 51 | struct hid_usage *usage, __s32 value) | |
| 52 | { | |
| 53 | if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput || | |
| 54 | !usage->type) | |
| 55 | return 0; | |
| 56 | ||
| 57 | /* handle the temporary quirky mapping to HWHEEL */ | |
| 58 | if (usage->type == EV_REL && usage->code == REL_HWHEEL) { | |
| 59 | struct input_dev *input = field->hidinput->input; | |
| 60 | input_event(input, usage->type, REL_WHEEL, -value); | |
| 61 | return 1; | |
| 62 | } | |
| 63 | ||
| 64 | return 0; | |
| 65 | } | |
| 66 | ||
| 67 | static const struct hid_device_id ez_devices[] = { | |
| 68 | { HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) }, | |
| 69 | { } | |
| 70 | }; | |
| 71 | MODULE_DEVICE_TABLE(hid, ez_devices); | |
| 72 | ||
| 73 | static struct hid_driver ez_driver = { | |
| 74 | .name = "ezkey", | |
| 75 | .id_table = ez_devices, | |
| 76 | .input_mapping = ez_input_mapping, | |
| 77 | .event = ez_event, | |
| 78 | }; | |
| f425458e | 79 | module_hid_driver(ez_driver); |
| 1f243e30 | 80 | |
| 1f243e30 | 81 | MODULE_LICENSE("GPL"); |