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Ole André Vadla Ravnås
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228
drivers/hid/hid-microsoft.c
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228
drivers/hid/hid-microsoft.c
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/*
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* HID driver for some microsoft "special" devices
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*
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* Copyright (c) 1999 Andreas Gal
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* Copyright (c) 2000-2005 Vojtech Pavlik <vojtech@suse.cz>
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* Copyright (c) 2005 Michael Haboustak <mike-@cinci.rr.com> for Concept2, Inc
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* Copyright (c) 2006-2007 Jiri Kosina
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* Copyright (c) 2008 Jiri Slaby
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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/input.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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#define MS_HIDINPUT 0x01
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#define MS_ERGONOMY 0x02
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#define MS_PRESENTER 0x04
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#define MS_RDESC 0x08
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#define MS_NOGET 0x10
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#define MS_DUPLICATE_USAGES 0x20
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#define MS_RDESC_3K 0x40
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static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
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unsigned int *rsize)
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{
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unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
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/*
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* Microsoft Wireless Desktop Receiver (Model 1028) has
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* 'Usage Min/Max' where it ought to have 'Physical Min/Max'
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*/
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if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
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rdesc[559] == 0x29) {
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hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
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rdesc[557] = 0x35;
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rdesc[559] = 0x45;
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}
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/* the same as above (s/usage/physical/) */
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if ((quirks & MS_RDESC_3K) && *rsize == 106 && rdesc[94] == 0x19 &&
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rdesc[95] == 0x00 && rdesc[96] == 0x29 &&
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rdesc[97] == 0xff) {
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rdesc[94] = 0x35;
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rdesc[96] = 0x45;
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}
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return rdesc;
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}
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#define ms_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
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EV_KEY, (c))
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static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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struct input_dev *input = hi->input;
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switch (usage->hid & HID_USAGE) {
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case 0xfd06: ms_map_key_clear(KEY_CHAT); break;
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case 0xfd07: ms_map_key_clear(KEY_PHONE); break;
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case 0xff05:
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set_bit(EV_REP, input->evbit);
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ms_map_key_clear(KEY_F13);
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set_bit(KEY_F14, input->keybit);
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set_bit(KEY_F15, input->keybit);
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set_bit(KEY_F16, input->keybit);
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set_bit(KEY_F17, input->keybit);
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set_bit(KEY_F18, input->keybit);
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default:
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return 0;
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}
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return 1;
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}
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static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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set_bit(EV_REP, hi->input->evbit);
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switch (usage->hid & HID_USAGE) {
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case 0xfd08: ms_map_key_clear(KEY_FORWARD); break;
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case 0xfd09: ms_map_key_clear(KEY_BACK); break;
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case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE); break;
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case 0xfd0e: ms_map_key_clear(KEY_CLOSE); break;
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case 0xfd0f: ms_map_key_clear(KEY_PLAY); break;
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default:
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return 0;
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}
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return 1;
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}
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static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
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struct hid_field *field, struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
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if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
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return 0;
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if (quirks & MS_ERGONOMY) {
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int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
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if (ret)
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return ret;
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}
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if ((quirks & MS_PRESENTER) &&
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ms_presenter_8k_quirk(hi, usage, bit, max))
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return 1;
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return 0;
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}
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static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
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struct hid_field *field, struct hid_usage *usage,
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unsigned long **bit, int *max)
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{
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unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
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if (quirks & MS_DUPLICATE_USAGES)
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clear_bit(usage->code, *bit);
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return 0;
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}
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static int ms_event(struct hid_device *hdev, struct hid_field *field,
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struct hid_usage *usage, __s32 value)
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{
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unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
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if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
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!usage->type)
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return 0;
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/* Handling MS keyboards special buttons */
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if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
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struct input_dev *input = field->hidinput->input;
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static unsigned int last_key = 0;
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unsigned int key = 0;
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switch (value) {
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case 0x01: key = KEY_F14; break;
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case 0x02: key = KEY_F15; break;
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case 0x04: key = KEY_F16; break;
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case 0x08: key = KEY_F17; break;
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case 0x10: key = KEY_F18; break;
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}
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if (key) {
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input_event(input, usage->type, key, 1);
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last_key = key;
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} else
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input_event(input, usage->type, last_key, 0);
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return 1;
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}
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return 0;
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}
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static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
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{
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unsigned long quirks = id->driver_data;
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int ret;
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hid_set_drvdata(hdev, (void *)quirks);
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if (quirks & MS_NOGET)
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hdev->quirks |= HID_QUIRK_NOGET;
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ret = hid_parse(hdev);
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if (ret) {
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hid_err(hdev, "parse failed\n");
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goto err_free;
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}
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ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
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HID_CONNECT_HIDINPUT_FORCE : 0));
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if (ret) {
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hid_err(hdev, "hw start failed\n");
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goto err_free;
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}
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return 0;
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err_free:
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return ret;
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}
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static const struct hid_device_id ms_devices[] = {
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
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.driver_data = MS_HIDINPUT },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
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.driver_data = MS_ERGONOMY },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
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.driver_data = MS_ERGONOMY },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
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.driver_data = MS_ERGONOMY | MS_RDESC },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
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.driver_data = MS_PRESENTER },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
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.driver_data = MS_ERGONOMY | MS_RDESC_3K },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
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.driver_data = MS_NOGET },
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{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
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.driver_data = MS_DUPLICATE_USAGES },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
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.driver_data = MS_PRESENTER },
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{ }
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};
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MODULE_DEVICE_TABLE(hid, ms_devices);
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static struct hid_driver ms_driver = {
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.name = "microsoft",
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.id_table = ms_devices,
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.report_fixup = ms_report_fixup,
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.input_mapping = ms_input_mapping,
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.input_mapped = ms_input_mapped,
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.event = ms_event,
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.probe = ms_probe,
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};
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module_hid_driver(ms_driver);
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MODULE_LICENSE("GPL");
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