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73e4008ddd
android_kernel_xiaomi_sm8350/drivers/hid/hid-lg.c
Nikolai Kondrashov 73e4008ddd HID: allow resizing and replacing report descriptors 
Update hid_driver's report_fixup prototype to allow changing report
descriptor size and/or returning completely different report descriptor.
Update existing usage accordingly.

This is to give more freedom in descriptor fixup and to allow having a whole
fixed descriptor in the code for the sake of readability.

Signed-off-by: Nikolai Kondrashov <spbnick@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2010-08-09 19:52:42 +02:00

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/*
* HID driver for some logitech "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) 2007 Paul Walmsley
* 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"
#include "hid-lg.h"
#define LG_RDESC 0x001
#define LG_BAD_RELATIVE_KEYS 0x002
#define LG_DUPLICATE_USAGES 0x004
#define LG_EXPANDED_KEYMAP 0x010
#define LG_IGNORE_DOUBLED_WHEEL 0x020
#define LG_WIRELESS 0x040
#define LG_INVERT_HWHEEL 0x080
#define LG_NOGET 0x100
#define LG_FF 0x200
#define LG_FF2 0x400
#define LG_RDESC_REL_ABS 0x800
#define LG_FF3 0x1000
/*
* Certain Logitech keyboards send in report #3 keys which are far
* above the logical maximum described in descriptor. This extends
* the original value of 0x28c of logical maximum to 0x104d
*/
static __u8 *lg_report_fixup(struct hid_device *hdev, __u8 *rdesc,
unsigned int *rsize)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if ((quirks & LG_RDESC) && *rsize >= 90 && rdesc[83] == 0x26 &&
rdesc[84] == 0x8c && rdesc[85] == 0x02) {
dev_info(&hdev->dev, "fixing up Logitech keyboard report "
"descriptor\n");
rdesc[84] = rdesc[89] = 0x4d;
rdesc[85] = rdesc[90] = 0x10;
}
if ((quirks & LG_RDESC_REL_ABS) && *rsize >= 50 &&
rdesc[32] == 0x81 && rdesc[33] == 0x06 &&
rdesc[49] == 0x81 && rdesc[50] == 0x06) {
dev_info(&hdev->dev, "fixing up rel/abs in Logitech "
"report descriptor\n");
rdesc[33] = rdesc[50] = 0x02;
}
return rdesc;
}
#define lg_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, max, \
EV_KEY, (c))
static int lg_ultrax_remote_mapping(struct hid_input *hi,
struct hid_usage *usage, unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
set_bit(EV_REP, hi->input->evbit);
switch (usage->hid & HID_USAGE) {
/* Reported on Logitech Ultra X Media Remote */
case 0x004: lg_map_key_clear(KEY_AGAIN); break;
case 0x00d: lg_map_key_clear(KEY_HOME); break;
case 0x024: lg_map_key_clear(KEY_SHUFFLE); break;
case 0x025: lg_map_key_clear(KEY_TV); break;
case 0x026: lg_map_key_clear(KEY_MENU); break;
case 0x031: lg_map_key_clear(KEY_AUDIO); break;
case 0x032: lg_map_key_clear(KEY_TEXT); break;
case 0x033: lg_map_key_clear(KEY_LAST); break;
case 0x047: lg_map_key_clear(KEY_MP3); break;
case 0x048: lg_map_key_clear(KEY_DVD); break;
case 0x049: lg_map_key_clear(KEY_MEDIA); break;
case 0x04a: lg_map_key_clear(KEY_VIDEO); break;
case 0x04b: lg_map_key_clear(KEY_ANGLE); break;
case 0x04c: lg_map_key_clear(KEY_LANGUAGE); break;
case 0x04d: lg_map_key_clear(KEY_SUBTITLE); break;
case 0x051: lg_map_key_clear(KEY_RED); break;
case 0x052: lg_map_key_clear(KEY_CLOSE); break;
default:
return 0;
}
return 1;
}
static int lg_dinovo_mapping(struct hid_input *hi, struct hid_usage *usage,
unsigned long **bit, int *max)
{
if ((usage->hid & HID_USAGE_PAGE) != HID_UP_LOGIVENDOR)
return 0;
switch (usage->hid & HID_USAGE) {
case 0x00d: lg_map_key_clear(KEY_MEDIA); break;
default:
return 0;
}
return 1;
}
static int lg_wireless_mapping(struct hid_input *hi, 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 0x1001: lg_map_key_clear(KEY_MESSENGER); break;
case 0x1003: lg_map_key_clear(KEY_SOUND); break;
case 0x1004: lg_map_key_clear(KEY_VIDEO); break;
case 0x1005: lg_map_key_clear(KEY_AUDIO); break;
case 0x100a: lg_map_key_clear(KEY_DOCUMENTS); break;
/* The following two entries are Playlist 1 and 2 on the MX3200 */
case 0x100f: lg_map_key_clear(KEY_FN_1); break;
case 0x1010: lg_map_key_clear(KEY_FN_2); break;
case 0x1011: lg_map_key_clear(KEY_PREVIOUSSONG); break;
case 0x1012: lg_map_key_clear(KEY_NEXTSONG); break;
case 0x1013: lg_map_key_clear(KEY_CAMERA); break;
case 0x1014: lg_map_key_clear(KEY_MESSENGER); break;
case 0x1015: lg_map_key_clear(KEY_RECORD); break;
case 0x1016: lg_map_key_clear(KEY_PLAYER); break;
case 0x1017: lg_map_key_clear(KEY_EJECTCD); break;
case 0x1018: lg_map_key_clear(KEY_MEDIA); break;
case 0x1019: lg_map_key_clear(KEY_PROG1); break;
case 0x101a: lg_map_key_clear(KEY_PROG2); break;
case 0x101b: lg_map_key_clear(KEY_PROG3); break;
case 0x101c: lg_map_key_clear(KEY_CYCLEWINDOWS); break;
case 0x101f: lg_map_key_clear(KEY_ZOOMIN); break;
case 0x1020: lg_map_key_clear(KEY_ZOOMOUT); break;
case 0x1021: lg_map_key_clear(KEY_ZOOMRESET); break;
case 0x1023: lg_map_key_clear(KEY_CLOSE); break;
case 0x1027: lg_map_key_clear(KEY_MENU); break;
/* this one is marked as 'Rotate' */
case 0x1028: lg_map_key_clear(KEY_ANGLE); break;
case 0x1029: lg_map_key_clear(KEY_SHUFFLE); break;
case 0x102a: lg_map_key_clear(KEY_BACK); break;
case 0x102b: lg_map_key_clear(KEY_CYCLEWINDOWS); break;
case 0x102d: lg_map_key_clear(KEY_WWW); break;
/* The following two are 'Start/answer call' and 'End/reject call'
on the MX3200 */
case 0x1031: lg_map_key_clear(KEY_OK); break;
case 0x1032: lg_map_key_clear(KEY_CANCEL); break;
case 0x1041: lg_map_key_clear(KEY_BATTERY); break;
case 0x1042: lg_map_key_clear(KEY_WORDPROCESSOR); break;
case 0x1043: lg_map_key_clear(KEY_SPREADSHEET); break;
case 0x1044: lg_map_key_clear(KEY_PRESENTATION); break;
case 0x1045: lg_map_key_clear(KEY_UNDO); break;
case 0x1046: lg_map_key_clear(KEY_REDO); break;
case 0x1047: lg_map_key_clear(KEY_PRINT); break;
case 0x1048: lg_map_key_clear(KEY_SAVE); break;
case 0x1049: lg_map_key_clear(KEY_PROG1); break;
case 0x104a: lg_map_key_clear(KEY_PROG2); break;
case 0x104b: lg_map_key_clear(KEY_PROG3); break;
case 0x104c: lg_map_key_clear(KEY_PROG4); break;
default:
return 0;
}
return 1;
}
static int lg_input_mapping(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
/* extended mapping for certain Logitech hardware (Logitech cordless
desktop LX500) */
static const u8 e_keymap[] = {
0,216, 0,213,175,156, 0, 0, 0, 0,
144, 0, 0, 0, 0, 0, 0, 0, 0,212,
174,167,152,161,112, 0, 0, 0,154, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0,183,184,185,186,187,
188,189,190,191,192,193,194, 0, 0, 0
};
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
unsigned int hid = usage->hid;
if (hdev->product == USB_DEVICE_ID_LOGITECH_RECEIVER &&
lg_ultrax_remote_mapping(hi, usage, bit, max))
return 1;
if (hdev->product == USB_DEVICE_ID_DINOVO_MINI &&
lg_dinovo_mapping(hi, usage, bit, max))
return 1;
if ((quirks & LG_WIRELESS) && lg_wireless_mapping(hi, usage, bit, max))
return 1;
if ((hid & HID_USAGE_PAGE) != HID_UP_BUTTON)
return 0;
hid &= HID_USAGE;
/* Special handling for Logitech Cordless Desktop */
if (field->application == HID_GD_MOUSE) {
if ((quirks & LG_IGNORE_DOUBLED_WHEEL) &&
(hid == 7 || hid == 8))
return -1;
} else {
if ((quirks & LG_EXPANDED_KEYMAP) &&
hid < ARRAY_SIZE(e_keymap) &&
e_keymap[hid] != 0) {
hid_map_usage(hi, usage, bit, max, EV_KEY,
e_keymap[hid]);
return 1;
}
}
return 0;
}
static int lg_input_mapped(struct hid_device *hdev, struct hid_input *hi,
struct hid_field *field, struct hid_usage *usage,
unsigned long **bit, int *max)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if ((quirks & LG_BAD_RELATIVE_KEYS) && usage->type == EV_KEY &&
(field->flags & HID_MAIN_ITEM_RELATIVE))
field->flags &= ~HID_MAIN_ITEM_RELATIVE;
if ((quirks & LG_DUPLICATE_USAGES) && (usage->type == EV_KEY ||
usage->type == EV_REL || usage->type == EV_ABS))
clear_bit(usage->code, *bit);
return 0;
}
static int lg_event(struct hid_device *hdev, struct hid_field *field,
struct hid_usage *usage, __s32 value)
{
unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
if ((quirks & LG_INVERT_HWHEEL) && usage->code == REL_HWHEEL) {
input_event(field->hidinput->input, usage->type, usage->code,
-value);
return 1;
}
return 0;
}
static int lg_probe(struct hid_device *hdev, const struct hid_device_id *id)
{
unsigned long quirks = id->driver_data;
unsigned int connect_mask = HID_CONNECT_DEFAULT;
int ret;
hid_set_drvdata(hdev, (void *)quirks);
if (quirks & LG_NOGET)
hdev->quirks |= HID_QUIRK_NOGET;
ret = hid_parse(hdev);
if (ret) {
dev_err(&hdev->dev, "parse failed\n");
goto err_free;
}
if (quirks & (LG_FF | LG_FF2 | LG_FF3))
connect_mask &= ~HID_CONNECT_FF;
ret = hid_hw_start(hdev, connect_mask);
if (ret) {
dev_err(&hdev->dev, "hw start failed\n");
goto err_free;
}
if (quirks & LG_FF)
lgff_init(hdev);
if (quirks & LG_FF2)
lg2ff_init(hdev);
if (quirks & LG_FF3)
lg3ff_init(hdev);
return 0;
err_free:
return ret;
}
static const struct hid_device_id lg_devices[] = {
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_MX3000_RECEIVER),
.driver_data = LG_RDESC | LG_WIRELESS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER),
.driver_data = LG_RDESC | LG_WIRELESS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_S510_RECEIVER_2),
.driver_data = LG_RDESC | LG_WIRELESS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RECEIVER),
.driver_data = LG_BAD_RELATIVE_KEYS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_DESKTOP),
.driver_data = LG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_EDGE),
.driver_data = LG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_DINOVO_MINI),
.driver_data = LG_DUPLICATE_USAGES },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_ELITE_KBD),
.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_CORDLESS_DESKTOP_LX500),
.driver_data = LG_IGNORE_DOUBLED_WHEEL | LG_EXPANDED_KEYMAP },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_EXTREME_3D),
.driver_data = LG_NOGET },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WHEEL),
.driver_data = LG_NOGET | LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2_2),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_F3D),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FORCE3D_PRO),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_MOMO_WHEEL2),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_G25_WHEEL),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_WINGMAN_FFG ),
.driver_data = LG_FF },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_RUMBLEPAD2),
.driver_data = LG_FF2 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_LOGITECH_FLIGHT_SYSTEM_G940),
.driver_data = LG_FF3 },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACENAVIGATOR),
.driver_data = LG_RDESC_REL_ABS },
{ HID_USB_DEVICE(USB_VENDOR_ID_LOGITECH, USB_DEVICE_ID_SPACETRAVELLER),
.driver_data = LG_RDESC_REL_ABS },
{ }
};
MODULE_DEVICE_TABLE(hid, lg_devices);
static struct hid_driver lg_driver = {
.name = "logitech",
.id_table = lg_devices,
.report_fixup = lg_report_fixup,
.input_mapping = lg_input_mapping,
.input_mapped = lg_input_mapped,
.event = lg_event,
.probe = lg_probe,
};
static int __init lg_init(void)
{
return hid_register_driver(&lg_driver);
}
static void __exit lg_exit(void)
{
hid_unregister_driver(&lg_driver);
}
module_init(lg_init);
module_exit(lg_exit);
MODULE_LICENSE("GPL");
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