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linux-next/drivers/hid/hid-microsoft.c
Linus Torvalds fc3abb5325 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid 
Pull HID fixes from Jiri Kosina:

 - data sanitization and validtion fixes for report descriptor parser
   from Marc Zyngier

 - memory leak fix for hid-elan driver from Dinghao Liu

 - two device-specific quirks

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: core: Sanitize event code and type when mapping input
  HID: core: Correctly handle ReportSize being zero
  HID: elan: Fix memleak in elan_input_configured
  HID: microsoft: Add rumble support for the 8bitdo SN30 Pro+ controller
  HID: quirks: Set INCREMENT_USAGE_ON_DUPLICATE for all Saitek X52 devices
2020-09-02 12:55:46 -07:00

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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* HID driver for some microsoft "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
*/
/*
*/
#include <linux/device.h>
#include <linux/input.h>
#include <linux/hid.h>
#include <linux/module.h>
#include "hid-ids.h"
#define MS_HIDINPUT BIT(0)
#define MS_ERGONOMY BIT(1)
#define MS_PRESENTER BIT(2)
#define MS_RDESC BIT(3)
#define MS_NOGET BIT(4)
#define MS_DUPLICATE_USAGES BIT(5)
#define MS_SURFACE_DIAL BIT(6)
#define MS_QUIRK_FF BIT(7)
struct ms_data {
unsigned long quirks;
struct hid_device *hdev;
struct work_struct ff_worker;
__u8 strong;
__u8 weak;
void *output_report_dmabuf;
};
#define XB1S_FF_REPORT 3
#define ENABLE_WEAK BIT(0)
#define ENABLE_STRONG BIT(1)
enum {
MAGNITUDE_STRONG = 2,
MAGNITUDE_WEAK,
MAGNITUDE_NUM
};
struct xb1s_ff_report {
__u8 report_id;
__u8 enable;
__u8 magnitude[MAGNITUDE_NUM];
__u8 duration_10ms;
__u8 start_delay_10ms;
__u8 loop_count;
} __packed;
static __u8 *ms_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
/*
* Microsoft Wireless Desktop Receiver (Model 1028) has
* 'Usage Min/Max' where it ought to have 'Physical Min/Max'
*/
if ((quirks & MS_RDESC) && *rsize == 571 && rdesc[557] == 0x19 &&
rdesc[559] == 0x29) {
hid_info(hdev, "fixing up Microsoft Wireless Receiver Model 1028 report descriptor\n");
rdesc[557] = 0x35;
rdesc[559] = 0x45;
}
return rdesc;
}
#define ms_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int ms_ergonomy_kb_quirk(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct input_dev *input = hi->input;
if ((usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) {
switch (usage->hid & HID_USAGE) {
/*
* Microsoft uses these 2 reserved usage ids for 2 keys on
* the MS office kb labelled "Office Home" and "Task Pane".
*/
case 0x29d:
ms_map_key_clear(KEY_PROG1);
return 1;
case 0x29e:
ms_map_key_clear(KEY_PROG2);
return 1;
}
return 0;
}
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0xfd06: ms_map_key_clear(KEY_CHAT); break;
case 0xfd07: ms_map_key_clear(KEY_PHONE); break;
case 0xff00:
/* Special keypad keys */
ms_map_key_clear(KEY_KPEQUAL);
set_bit(KEY_KPLEFTPAREN, input->keybit);
set_bit(KEY_KPRIGHTPAREN, input->keybit);
break;
case 0xff01:
/* Scroll wheel */
hid_map_usage_clear(hi, usage, bit, max, EV_REL, REL_WHEEL);
break;
case 0xff02:
/*
* This byte contains a copy of the modifier keys byte of a
* standard hid keyboard report, as send by interface 0
* (this usage is found on interface 1).
*
* This byte only gets send when another key in the same report
* changes state, and as such is useless, ignore it.
*/
return -1;
case 0xff05:
set_bit(EV_REP, input->evbit);
ms_map_key_clear(KEY_F13);
set_bit(KEY_F14, input->keybit);
set_bit(KEY_F15, input->keybit);
set_bit(KEY_F16, input->keybit);
set_bit(KEY_F17, input->keybit);
set_bit(KEY_F18, input->keybit);
break;
default:
return 0;
}
return 1;
}
static int ms_presenter_8k_quirk(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_MSVENDOR)
return 0;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
case 0xfd08: ms_map_key_clear(KEY_FORWARD); break;
case 0xfd09: ms_map_key_clear(KEY_BACK); break;
case 0xfd0b: ms_map_key_clear(KEY_PLAYPAUSE); break;
case 0xfd0e: ms_map_key_clear(KEY_CLOSE); break;
case 0xfd0f: ms_map_key_clear(KEY_PLAY); break;
default:
return 0;
}
return 1;
}
static int ms_surface_dial_quirk(struct hid_input *hi, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max)
{
switch (usage->hid & HID_USAGE_PAGE) {
case 0xff070000:
case HID_UP_DIGITIZER:
/* ignore those axis */
return -1;
case HID_UP_GENDESK:
switch (usage->hid) {
case HID_GD_X:
case HID_GD_Y:
case HID_GD_RFKILL_BTN:
/* ignore those axis */
return -1;
}
}
return 0;
}
static int ms_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
if (quirks & MS_ERGONOMY) {
int ret = ms_ergonomy_kb_quirk(hi, usage, bit, max);
if (ret)
return ret;
}
if ((quirks & MS_PRESENTER) &&
ms_presenter_8k_quirk(hi, usage, bit, max))
return 1;
if (quirks & MS_SURFACE_DIAL) {
int ret = ms_surface_dial_quirk(hi, field, usage, bit, max);
if (ret)
return ret;
}
return 0;
}
static int ms_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
if (quirks & MS_DUPLICATE_USAGES)
clear_bit(usage->code, *bit);
return 0;
}
static int ms_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
struct ms_data *ms = hid_get_drvdata(hdev);
unsigned long quirks = ms->quirks;
struct input_dev *input;
if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput ||
!usage->type)
return 0;
input = field->hidinput->input;
/* Handling MS keyboards special buttons */
if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff00)) {
/* Special keypad keys */
input_report_key(input, KEY_KPEQUAL, value & 0x01);
input_report_key(input, KEY_KPLEFTPAREN, value & 0x02);
input_report_key(input, KEY_KPRIGHTPAREN, value & 0x04);
return 1;
}
if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff01)) {
/* Scroll wheel */
int step = ((value & 0x60) >> 5) + 1;
switch (value & 0x1f) {
case 0x01:
input_report_rel(input, REL_WHEEL, step);
break;
case 0x1f:
input_report_rel(input, REL_WHEEL, -step);
break;
}
return 1;
}
if (quirks & MS_ERGONOMY && usage->hid == (HID_UP_MSVENDOR | 0xff05)) {
static unsigned int last_key = 0;
unsigned int key = 0;
switch (value) {
case 0x01: key = KEY_F14; break;
case 0x02: key = KEY_F15; break;
case 0x04: key = KEY_F16; break;
case 0x08: key = KEY_F17; break;
case 0x10: key = KEY_F18; break;
}
if (key) {
input_event(input, usage->type, key, 1);
last_key = key;
} else
input_event(input, usage->type, last_key, 0);
return 1;
}
return 0;
}
static void ms_ff_worker(struct work_struct *work)
{
struct ms_data *ms = container_of(work, struct ms_data, ff_worker);
struct hid_device *hdev = ms->hdev;
struct xb1s_ff_report *r = ms->output_report_dmabuf;
int ret;
memset(r, 0, sizeof(*r));
r->report_id = XB1S_FF_REPORT;
r->enable = ENABLE_WEAK | ENABLE_STRONG;
/*
* Specifying maximum duration and maximum loop count should
* cover maximum duration of a single effect, which is 65536
* ms
*/
r->duration_10ms = U8_MAX;
r->loop_count = U8_MAX;
r->magnitude[MAGNITUDE_STRONG] = ms->strong; /* left actuator */
r->magnitude[MAGNITUDE_WEAK] = ms->weak; /* right actuator */
ret = hid_hw_output_report(hdev, (__u8 *)r, sizeof(*r));
if (ret < 0)
hid_warn(hdev, "failed to send FF report\n");
}
static int ms_play_effect(struct input_dev *dev, void *data,
struct ff_effect *effect)
{
struct hid_device *hid = input_get_drvdata(dev);
struct ms_data *ms = hid_get_drvdata(hid);
if (effect->type != FF_RUMBLE)
return 0;
/*
* Magnitude is 0..100 so scale the 16-bit input here
*/
ms->strong = ((u32) effect->u.rumble.strong_magnitude * 100) / U16_MAX;
ms->weak = ((u32) effect->u.rumble.weak_magnitude * 100) / U16_MAX;
schedule_work(&ms->ff_worker);
return 0;
}
static int ms_init_ff(struct hid_device *hdev)
{
struct hid_input *hidinput;
struct input_dev *input_dev;
struct ms_data *ms = hid_get_drvdata(hdev);
if (list_empty(&hdev->inputs)) {
hid_err(hdev, "no inputs found\n");
return -ENODEV;
}
hidinput = list_entry(hdev->inputs.next, struct hid_input, list);
input_dev = hidinput->input;
if (!(ms->quirks & MS_QUIRK_FF))
return 0;
ms->hdev = hdev;
INIT_WORK(&ms->ff_worker, ms_ff_worker);
ms->output_report_dmabuf = devm_kzalloc(&hdev->dev,
sizeof(struct xb1s_ff_report),
GFP_KERNEL);
if (ms->output_report_dmabuf == NULL)
return -ENOMEM;
input_set_capability(input_dev, EV_FF, FF_RUMBLE);
return input_ff_create_memless(input_dev, NULL, ms_play_effect);
}
static void ms_remove_ff(struct hid_device *hdev)
{
struct ms_data *ms = hid_get_drvdata(hdev);
if (!(ms->quirks & MS_QUIRK_FF))
return;
cancel_work_sync(&ms->ff_worker);
}
static int ms_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
struct ms_data *ms;
int ret;
ms = devm_kzalloc(&hdev->dev, sizeof(*ms), GFP_KERNEL);
if (ms == NULL)
return -ENOMEM;
ms->quirks = quirks;
hid_set_drvdata(hdev, ms);
if (quirks & MS_NOGET)
hdev->quirks |= HID_QUIRK_NOGET;
if (quirks & MS_SURFACE_DIAL)
hdev->quirks |= HID_QUIRK_INPUT_PER_APP;
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "parse failed\n");
goto err_free;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT | ((quirks & MS_HIDINPUT) ?
HID_CONNECT_HIDINPUT_FORCE : 0));
if (ret) {
hid_err(hdev, "hw start failed\n");
goto err_free;
}
ret = ms_init_ff(hdev);
if (ret)
hid_err(hdev, "could not initialize ff, continuing anyway");
return 0;
err_free:
return ret;
}
static void ms_remove(struct hid_device *hdev)
{
hid_hw_stop(hdev);
ms_remove_ff(hdev);
}
static const struct hid_device_id ms_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_SIDEWINDER_GV),
.driver_data = MS_HIDINPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_OFFICE_KB),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE4K_JP),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_NE7K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_LK6K),
.driver_data = MS_ERGONOMY | MS_RDESC },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_USB),
.driver_data = MS_PRESENTER },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_7K),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_600),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_DIGITAL_MEDIA_3KV1),
.driver_data = MS_ERGONOMY },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_WIRELESS_OPTICAL_DESKTOP_3_0),
.driver_data = MS_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_MOUSE_4500),
.driver_data = MS_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_POWER_COVER),
.driver_data = MS_HIDINPUT },
{ HID_USB_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_COMFORT_KEYBOARD),
.driver_data = MS_ERGONOMY},
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_PRESENTER_8K_BT),
.driver_data = MS_PRESENTER },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, 0x091B),
.driver_data = MS_SURFACE_DIAL },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_MS_XBOX_ONE_S_CONTROLLER),
.driver_data = MS_QUIRK_FF },
{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_MICROSOFT, USB_DEVICE_ID_8BITDO_SN30_PRO_PLUS),
.driver_data = MS_QUIRK_FF },
{ }
};
MODULE_DEVICE_TABLE(hid, ms_devices);
static struct hid_driver ms_driver = {
.name = "microsoft",
.id_table = ms_devices,
.report_fixup = ms_report_fixup,
.input_mapping = ms_input_mapping,
.input_mapped = ms_input_mapped,
.event = ms_event,
.probe = ms_probe,
.remove = ms_remove,
};
module_hid_driver(ms_driver);
MODULE_LICENSE("GPL");
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