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-rw-r--r--include/linux/hid.h768
1 files changed, 525 insertions, 243 deletions
diff --git a/include/linux/hid.h b/include/linux/hid.h
index 0c48991b0402..dce862cafbbd 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -1,22 +1,10 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (c) 1999 Andreas Gal
* Copyright (c) 2000-2001 Vojtech Pavlik
* Copyright (c) 2006-2007 Jiri Kosina
*/
/*
- * 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.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Should you need to contact me, the author, you can do so either by
* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
@@ -26,6 +14,7 @@
#define __HID_H
+#include <linux/bitops.h>
#include <linux/types.h>
#include <linux/slab.h>
#include <linux/list.h>
@@ -34,8 +23,10 @@
#include <linux/workqueue.h>
#include <linux/input.h>
#include <linux/semaphore.h>
+#include <linux/mutex.h>
#include <linux/power_supply.h>
#include <uapi/linux/hid.h>
+#include <linux/hid_bpf.h>
/*
* We parse each description item into this structure. Short items data
@@ -55,7 +46,7 @@ struct hid_item {
__s16 s16;
__u32 u32;
__s32 s32;
- __u8 *longdata;
+ const __u8 *longdata;
} data;
};
@@ -90,6 +81,8 @@ struct hid_item {
#define HID_MAIN_ITEM_TAG_FEATURE 11
#define HID_MAIN_ITEM_TAG_BEGIN_COLLECTION 10
#define HID_MAIN_ITEM_TAG_END_COLLECTION 12
+#define HID_MAIN_ITEM_TAG_RESERVED_MIN 13
+#define HID_MAIN_ITEM_TAG_RESERVED_MAX 15
/*
* HID report descriptor main item contents
@@ -112,6 +105,7 @@ struct hid_item {
#define HID_COLLECTION_PHYSICAL 0
#define HID_COLLECTION_APPLICATION 1
#define HID_COLLECTION_LOGICAL 2
+#define HID_COLLECTION_NAMED_ARRAY 4
/*
* HID report descriptor global item tags
@@ -159,15 +153,24 @@ struct hid_item {
#define HID_UP_LED 0x00080000
#define HID_UP_BUTTON 0x00090000
#define HID_UP_ORDINAL 0x000a0000
+#define HID_UP_TELEPHONY 0x000b0000
#define HID_UP_CONSUMER 0x000c0000
#define HID_UP_DIGITIZER 0x000d0000
+#define HID_UP_HAPTIC 0x000e0000
#define HID_UP_PID 0x000f0000
+#define HID_UP_BATTERY 0x00850000
+#define HID_UP_CAMERA 0x00900000
#define HID_UP_HPVENDOR 0xff7f0000
#define HID_UP_HPVENDOR2 0xff010000
#define HID_UP_MSVENDOR 0xff000000
#define HID_UP_CUSTOM 0x00ff0000
#define HID_UP_LOGIVENDOR 0xffbc0000
+#define HID_UP_LOGIVENDOR2 0xff090000
+#define HID_UP_LOGIVENDOR3 0xff430000
+#define HID_UP_LNVENDOR 0xffa00000
#define HID_UP_SENSOR 0x00200000
+#define HID_UP_ASUSVENDOR 0xff310000
+#define HID_UP_GOOGLEVENDOR 0xffd10000
#define HID_USAGE 0x0000ffff
@@ -178,6 +181,17 @@ struct hid_item {
#define HID_GD_KEYBOARD 0x00010006
#define HID_GD_KEYPAD 0x00010007
#define HID_GD_MULTIAXIS 0x00010008
+/*
+ * Microsoft Win8 Wireless Radio Controls extensions CA, see:
+ * http://www.usb.org/developers/hidpage/HUTRR40RadioHIDUsagesFinal.pdf
+ */
+#define HID_GD_WIRELESS_RADIO_CTLS 0x0001000c
+/*
+ * System Multi-Axis, see:
+ * http://www.usb.org/developers/hidpage/HUTRR62_-_Generic_Desktop_CA_for_System_Multi-Axis_Controllers.txt
+ */
+#define HID_GD_SYSTEM_MULTIAXIS 0x0001000e
+
#define HID_GD_X 0x00010030
#define HID_GD_Y 0x00010031
#define HID_GD_Z 0x00010032
@@ -201,18 +215,29 @@ struct hid_item {
#define HID_GD_VBRZ 0x00010045
#define HID_GD_VNO 0x00010046
#define HID_GD_FEATURE 0x00010047
+#define HID_GD_RESOLUTION_MULTIPLIER 0x00010048
+#define HID_GD_SYSTEM_CONTROL 0x00010080
#define HID_GD_UP 0x00010090
#define HID_GD_DOWN 0x00010091
#define HID_GD_RIGHT 0x00010092
#define HID_GD_LEFT 0x00010093
+#define HID_GD_DO_NOT_DISTURB 0x0001009b
+/* Microsoft Win8 Wireless Radio Controls CA usage codes */
+#define HID_GD_RFKILL_BTN 0x000100c6
+#define HID_GD_RFKILL_LED 0x000100c7
+#define HID_GD_RFKILL_SWITCH 0x000100c8
#define HID_DC_BATTERYSTRENGTH 0x00060020
+#define HID_CP_CONSUMER_CONTROL 0x000c0001
+#define HID_CP_AC_PAN 0x000c0238
+
#define HID_DG_DIGITIZER 0x000d0001
#define HID_DG_PEN 0x000d0002
#define HID_DG_LIGHTPEN 0x000d0003
#define HID_DG_TOUCHSCREEN 0x000d0004
#define HID_DG_TOUCHPAD 0x000d0005
+#define HID_DG_WHITEBOARD 0x000d0006
#define HID_DG_STYLUS 0x000d0020
#define HID_DG_PUCK 0x000d0021
#define HID_DG_FINGER 0x000d0022
@@ -222,19 +247,60 @@ struct hid_item {
#define HID_DG_TOUCH 0x000d0033
#define HID_DG_UNTOUCH 0x000d0034
#define HID_DG_TAP 0x000d0035
+#define HID_DG_TRANSDUCER_INDEX 0x000d0038
#define HID_DG_TABLETFUNCTIONKEY 0x000d0039
#define HID_DG_PROGRAMCHANGEKEY 0x000d003a
+#define HID_DG_BATTERYSTRENGTH 0x000d003b
#define HID_DG_INVERT 0x000d003c
+#define HID_DG_TILT_X 0x000d003d
+#define HID_DG_TILT_Y 0x000d003e
+#define HID_DG_TWIST 0x000d0041
#define HID_DG_TIPSWITCH 0x000d0042
#define HID_DG_TIPSWITCH2 0x000d0043
#define HID_DG_BARRELSWITCH 0x000d0044
#define HID_DG_ERASER 0x000d0045
#define HID_DG_TABLETPICK 0x000d0046
-/*
- * as of May 20, 2009 the usages below are not yet in the official USB spec
- * but are being pushed by Microsft as described in their paper "Digitizer
- * Drivers for Windows Touch and Pen-Based Computers"
- */
+#define HID_DG_PEN_COLOR 0x000d005c
+#define HID_DG_PEN_LINE_WIDTH 0x000d005e
+#define HID_DG_PEN_LINE_STYLE 0x000d0070
+#define HID_DG_PEN_LINE_STYLE_INK 0x000d0072
+#define HID_DG_PEN_LINE_STYLE_PENCIL 0x000d0073
+#define HID_DG_PEN_LINE_STYLE_HIGHLIGHTER 0x000d0074
+#define HID_DG_PEN_LINE_STYLE_CHISEL_MARKER 0x000d0075
+#define HID_DG_PEN_LINE_STYLE_BRUSH 0x000d0076
+#define HID_DG_PEN_LINE_STYLE_NO_PREFERENCE 0x000d0077
+
+#define HID_CP_CONSUMERCONTROL 0x000c0001
+#define HID_CP_NUMERICKEYPAD 0x000c0002
+#define HID_CP_PROGRAMMABLEBUTTONS 0x000c0003
+#define HID_CP_MICROPHONE 0x000c0004
+#define HID_CP_HEADPHONE 0x000c0005
+#define HID_CP_GRAPHICEQUALIZER 0x000c0006
+#define HID_CP_FUNCTIONBUTTONS 0x000c0036
+#define HID_CP_SELECTION 0x000c0080
+#define HID_CP_MEDIASELECTION 0x000c0087
+#define HID_CP_SELECTDISC 0x000c00ba
+#define HID_CP_VOLUMEUP 0x000c00e9
+#define HID_CP_VOLUMEDOWN 0x000c00ea
+#define HID_CP_PLAYBACKSPEED 0x000c00f1
+#define HID_CP_PROXIMITY 0x000c0109
+#define HID_CP_SPEAKERSYSTEM 0x000c0160
+#define HID_CP_CHANNELLEFT 0x000c0161
+#define HID_CP_CHANNELRIGHT 0x000c0162
+#define HID_CP_CHANNELCENTER 0x000c0163
+#define HID_CP_CHANNELFRONT 0x000c0164
+#define HID_CP_CHANNELCENTERFRONT 0x000c0165
+#define HID_CP_CHANNELSIDE 0x000c0166
+#define HID_CP_CHANNELSURROUND 0x000c0167
+#define HID_CP_CHANNELLOWFREQUENCYENHANCEMENT 0x000c0168
+#define HID_CP_CHANNELTOP 0x000c0169
+#define HID_CP_CHANNELUNKNOWN 0x000c016a
+#define HID_CP_APPLICATIONLAUNCHBUTTONS 0x000c0180
+#define HID_CP_GENERICGUIAPPLICATIONCONTROLS 0x000c0200
+
+#define HID_DG_DEVICECONFIG 0x000d000e
+#define HID_DG_DEVICESETTINGS 0x000d0023
+#define HID_DG_AZIMUTH 0x000d003f
#define HID_DG_CONFIDENCE 0x000d0047
#define HID_DG_WIDTH 0x000d0048
#define HID_DG_HEIGHT 0x000d0049
@@ -243,25 +309,52 @@ struct hid_item {
#define HID_DG_DEVICEINDEX 0x000d0053
#define HID_DG_CONTACTCOUNT 0x000d0054
#define HID_DG_CONTACTMAX 0x000d0055
-
-/*
- * HID report types --- Ouch! HID spec says 1 2 3!
- */
-
-#define HID_INPUT_REPORT 0
-#define HID_OUTPUT_REPORT 1
-#define HID_FEATURE_REPORT 2
+#define HID_DG_SCANTIME 0x000d0056
+#define HID_DG_SURFACESWITCH 0x000d0057
+#define HID_DG_BUTTONSWITCH 0x000d0058
+#define HID_DG_BUTTONTYPE 0x000d0059
+#define HID_DG_BARRELSWITCH2 0x000d005a
+#define HID_DG_TOOLSERIALNUMBER 0x000d005b
+#define HID_DG_LATENCYMODE 0x000d0060
+
+#define HID_HP_SIMPLECONTROLLER 0x000e0001
+#define HID_HP_WAVEFORMLIST 0x000e0010
+#define HID_HP_DURATIONLIST 0x000e0011
+#define HID_HP_AUTOTRIGGER 0x000e0020
+#define HID_HP_MANUALTRIGGER 0x000e0021
+#define HID_HP_AUTOTRIGGERASSOCIATEDCONTROL 0x000e0022
+#define HID_HP_INTENSITY 0x000e0023
+#define HID_HP_REPEATCOUNT 0x000e0024
+#define HID_HP_RETRIGGERPERIOD 0x000e0025
+#define HID_HP_WAVEFORMVENDORPAGE 0x000e0026
+#define HID_HP_WAVEFORMVENDORID 0x000e0027
+#define HID_HP_WAVEFORMCUTOFFTIME 0x000e0028
+#define HID_HP_WAVEFORMNONE 0x000e1001
+#define HID_HP_WAVEFORMSTOP 0x000e1002
+#define HID_HP_WAVEFORMCLICK 0x000e1003
+#define HID_HP_WAVEFORMBUZZCONTINUOUS 0x000e1004
+#define HID_HP_WAVEFORMRUMBLECONTINUOUS 0x000e1005
+#define HID_HP_WAVEFORMPRESS 0x000e1006
+#define HID_HP_WAVEFORMRELEASE 0x000e1007
+#define HID_HP_VENDORWAVEFORMMIN 0x000e2001
+#define HID_HP_VENDORWAVEFORMMAX 0x000e2fff
+
+#define HID_BAT_ABSOLUTESTATEOFCHARGE 0x00850065
+#define HID_BAT_CHARGING 0x00850044
+
+#define HID_VD_ASUS_CUSTOM_MEDIA_KEYS 0xff310076
/*
* HID connect requests
*/
-#define HID_CONNECT_HIDINPUT 0x01
-#define HID_CONNECT_HIDINPUT_FORCE 0x02
-#define HID_CONNECT_HIDRAW 0x04
-#define HID_CONNECT_HIDDEV 0x08
-#define HID_CONNECT_HIDDEV_FORCE 0x10
-#define HID_CONNECT_FF 0x20
+#define HID_CONNECT_HIDINPUT BIT(0)
+#define HID_CONNECT_HIDINPUT_FORCE BIT(1)
+#define HID_CONNECT_HIDRAW BIT(2)
+#define HID_CONNECT_HIDDEV BIT(3)
+#define HID_CONNECT_HIDDEV_FORCE BIT(4)
+#define HID_CONNECT_FF BIT(5)
+#define HID_CONNECT_DRIVER BIT(6)
#define HID_CONNECT_DEFAULT (HID_CONNECT_HIDINPUT|HID_CONNECT_HIDRAW| \
HID_CONNECT_HIDDEV|HID_CONNECT_FF)
@@ -269,32 +362,97 @@ struct hid_item {
* HID device quirks.
*/
-/*
+/*
* Increase this if you need to configure more HID quirks at module load time
*/
#define MAX_USBHID_BOOT_QUIRKS 4
-#define HID_QUIRK_INVERT 0x00000001
-#define HID_QUIRK_NOTOUCH 0x00000002
-#define HID_QUIRK_IGNORE 0x00000004
-#define HID_QUIRK_NOGET 0x00000008
-#define HID_QUIRK_HIDDEV_FORCE 0x00000010
-#define HID_QUIRK_BADPAD 0x00000020
-#define HID_QUIRK_MULTI_INPUT 0x00000040
-#define HID_QUIRK_HIDINPUT_FORCE 0x00000080
-#define HID_QUIRK_NO_EMPTY_INPUT 0x00000100
-#define HID_QUIRK_SKIP_OUTPUT_REPORTS 0x00010000
-#define HID_QUIRK_FULLSPEED_INTERVAL 0x10000000
-#define HID_QUIRK_NO_INIT_REPORTS 0x20000000
-#define HID_QUIRK_NO_IGNORE 0x40000000
-#define HID_QUIRK_NO_INPUT_SYNC 0x80000000
+/**
+ * DOC: HID quirks
+ * | @HID_QUIRK_NOTOUCH:
+ * | @HID_QUIRK_IGNORE: ignore this device
+ * | @HID_QUIRK_NOGET:
+ * | @HID_QUIRK_HIDDEV_FORCE:
+ * | @HID_QUIRK_BADPAD:
+ * | @HID_QUIRK_MULTI_INPUT:
+ * | @HID_QUIRK_HIDINPUT_FORCE:
+ * | @HID_QUIRK_ALWAYS_POLL:
+ * | @HID_QUIRK_INPUT_PER_APP:
+ * | @HID_QUIRK_X_INVERT:
+ * | @HID_QUIRK_Y_INVERT:
+ * | @HID_QUIRK_IGNORE_MOUSE:
+ * | @HID_QUIRK_SKIP_OUTPUT_REPORTS:
+ * | @HID_QUIRK_SKIP_OUTPUT_REPORT_ID:
+ * | @HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP:
+ * | @HID_QUIRK_HAVE_SPECIAL_DRIVER:
+ * | @HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE:
+ * | @HID_QUIRK_IGNORE_SPECIAL_DRIVER
+ * | @HID_QUIRK_POWER_ON_AFTER_BACKLIGHT
+ * | @HID_QUIRK_FULLSPEED_INTERVAL:
+ * | @HID_QUIRK_NO_INIT_REPORTS:
+ * | @HID_QUIRK_NO_IGNORE:
+ * | @HID_QUIRK_NO_INPUT_SYNC:
+ */
+/* BIT(0) reserved for backward compatibility, was HID_QUIRK_INVERT */
+#define HID_QUIRK_NOTOUCH BIT(1)
+#define HID_QUIRK_IGNORE BIT(2)
+#define HID_QUIRK_NOGET BIT(3)
+#define HID_QUIRK_HIDDEV_FORCE BIT(4)
+#define HID_QUIRK_BADPAD BIT(5)
+#define HID_QUIRK_MULTI_INPUT BIT(6)
+#define HID_QUIRK_HIDINPUT_FORCE BIT(7)
+/* BIT(8) reserved for backward compatibility, was HID_QUIRK_NO_EMPTY_INPUT */
+/* BIT(9) reserved for backward compatibility, was NO_INIT_INPUT_REPORTS */
+#define HID_QUIRK_ALWAYS_POLL BIT(10)
+#define HID_QUIRK_INPUT_PER_APP BIT(11)
+#define HID_QUIRK_X_INVERT BIT(12)
+#define HID_QUIRK_Y_INVERT BIT(13)
+#define HID_QUIRK_IGNORE_MOUSE BIT(14)
+#define HID_QUIRK_SKIP_OUTPUT_REPORTS BIT(16)
+#define HID_QUIRK_SKIP_OUTPUT_REPORT_ID BIT(17)
+#define HID_QUIRK_NO_OUTPUT_REPORTS_ON_INTR_EP BIT(18)
+#define HID_QUIRK_HAVE_SPECIAL_DRIVER BIT(19)
+#define HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE BIT(20)
+#define HID_QUIRK_NOINVERT BIT(21)
+#define HID_QUIRK_IGNORE_SPECIAL_DRIVER BIT(22)
+#define HID_QUIRK_POWER_ON_AFTER_BACKLIGHT BIT(23)
+#define HID_QUIRK_FULLSPEED_INTERVAL BIT(28)
+#define HID_QUIRK_NO_INIT_REPORTS BIT(29)
+#define HID_QUIRK_NO_IGNORE BIT(30)
+#define HID_QUIRK_NO_INPUT_SYNC BIT(31)
/*
* HID device groups
+ *
+ * Note: HID_GROUP_ANY is declared in linux/mod_devicetable.h
+ * and has a value of 0x0000
*/
#define HID_GROUP_GENERIC 0x0001
#define HID_GROUP_MULTITOUCH 0x0002
#define HID_GROUP_SENSOR_HUB 0x0003
+#define HID_GROUP_MULTITOUCH_WIN_8 0x0004
+
+/*
+ * Vendor specific HID device groups
+ */
+#define HID_GROUP_RMI 0x0100
+#define HID_GROUP_WACOM 0x0101
+#define HID_GROUP_LOGITECH_DJ_DEVICE 0x0102
+#define HID_GROUP_STEAM 0x0103
+#define HID_GROUP_LOGITECH_27MHZ_DEVICE 0x0104
+#define HID_GROUP_VIVALDI 0x0105
+
+/*
+ * HID protocol status
+ */
+#define HID_REPORT_PROTOCOL 1
+#define HID_BOOT_PROTOCOL 0
+
+/*
+ * HID units
+ */
+#define HID_UNIT_GRAM 0x0101
+#define HID_UNIT_NEWTON 0xe111
/*
* This is the global environment of the parser. This information is
@@ -324,6 +482,7 @@ struct hid_global {
struct hid_local {
unsigned usage[HID_MAX_USAGES]; /* usage array */
+ u8 usage_size[HID_MAX_USAGES]; /* usage size array */
unsigned collection_index[HID_MAX_USAGES]; /* collection index array */
unsigned usage_index;
unsigned usage_minimum;
@@ -337,6 +496,7 @@ struct hid_local {
*/
struct hid_collection {
+ int parent_idx; /* device->collection */
unsigned type;
unsigned usage;
unsigned level;
@@ -346,12 +506,16 @@ struct hid_usage {
unsigned hid; /* hid usage code */
unsigned collection_index; /* index into collection array */
unsigned usage_index; /* index into usage array */
+ __s8 resolution_multiplier;/* Effective Resolution Multiplier
+ (HUT v1.12, 4.3.1), default: 1 */
/* hidinput data */
+ __s8 wheel_factor; /* 120/resolution_multiplier */
__u16 code; /* input driver code */
__u8 type; /* input driver type */
- __s8 hat_min; /* hat switch fun */
- __s8 hat_max; /* ditto */
- __s8 hat_dir; /* ditto */
+ __s16 hat_min; /* hat switch fun */
+ __s16 hat_max; /* ditto */
+ __s16 hat_dir; /* ditto */
+ __s16 wheel_accumulated; /* hi-res wheel */
};
struct hid_input;
@@ -368,41 +532,62 @@ struct hid_field {
unsigned report_count; /* number of this field in the report */
unsigned report_type; /* (input,output,feature) */
__s32 *value; /* last known value(s) */
+ __s32 *new_value; /* newly read value(s) */
+ __s32 *usages_priorities; /* priority of each usage when reading the report
+ * bits 8-16 are reserved for hid-input usage
+ */
__s32 logical_minimum;
__s32 logical_maximum;
__s32 physical_minimum;
__s32 physical_maximum;
__s32 unit_exponent;
unsigned unit;
+ bool ignored; /* this field is ignored in this event */
struct hid_report *report; /* associated report */
unsigned index; /* index into report->field[] */
/* hidinput data */
struct hid_input *hidinput; /* associated input structure */
__u16 dpad; /* dpad input code */
+ unsigned int slot_idx; /* slot index in a report */
};
#define HID_MAX_FIELDS 256
+struct hid_field_entry {
+ struct list_head list;
+ struct hid_field *field;
+ unsigned int index;
+ __s32 priority;
+};
+
struct hid_report {
struct list_head list;
- unsigned id; /* id of this report */
- unsigned type; /* report type */
+ struct list_head hidinput_list;
+ struct list_head field_entry_list; /* ordered list of input fields */
+ unsigned int id; /* id of this report */
+ enum hid_report_type type; /* report type */
+ unsigned int application; /* application usage for this report */
struct hid_field *field[HID_MAX_FIELDS]; /* fields of the report */
+ struct hid_field_entry *field_entries; /* allocated memory of input field_entry */
unsigned maxfield; /* maximum valid field index */
unsigned size; /* size of the report (bits) */
struct hid_device *device; /* associated device */
+
+ /* tool related state */
+ bool tool_active; /* whether the current tool is active */
+ unsigned int tool; /* BTN_TOOL_* */
};
+#define HID_MAX_IDS 256
+
struct hid_report_enum {
unsigned numbered;
struct list_head report_list;
- struct hid_report *report_id_hash[256];
+ struct hid_report *report_id_hash[HID_MAX_IDS];
};
-#define HID_REPORT_TYPES 3
-
#define HID_MIN_BUFFER_SIZE 64 /* make sure there is at least a packet size of space */
-#define HID_MAX_BUFFER_SIZE 4096 /* 4kb */
+#define HID_MAX_BUFFER_SIZE 16384 /* 16kb */
#define HID_CONTROL_FIFO_SIZE 256 /* to init devices with >100 reports */
#define HID_OUTPUT_FIFO_SIZE 64
@@ -417,17 +602,24 @@ struct hid_output_fifo {
char *raw_report;
};
-#define HID_CLAIMED_INPUT 1
-#define HID_CLAIMED_HIDDEV 2
-#define HID_CLAIMED_HIDRAW 4
+#define HID_CLAIMED_INPUT BIT(0)
+#define HID_CLAIMED_HIDDEV BIT(1)
+#define HID_CLAIMED_HIDRAW BIT(2)
+#define HID_CLAIMED_DRIVER BIT(3)
-#define HID_STAT_ADDED 1
-#define HID_STAT_PARSED 2
+#define HID_STAT_ADDED BIT(0)
+#define HID_STAT_PARSED BIT(1)
+#define HID_STAT_DUP_DETECTED BIT(2)
+#define HID_STAT_REPROBED BIT(3)
struct hid_input {
struct list_head list;
struct hid_report *report;
struct input_dev *input;
+ const char *name;
+ struct list_head reports; /* the list of reports */
+ unsigned int application; /* application usage for this input */
+ bool registered;
};
enum hid_type {
@@ -436,18 +628,26 @@ enum hid_type {
HID_TYPE_USBNONE
};
+enum hid_battery_status {
+ HID_BATTERY_UNKNOWN = 0,
+ HID_BATTERY_QUERIED, /* Kernel explicitly queried battery strength */
+ HID_BATTERY_REPORTED, /* Device sent unsolicited battery strength report */
+};
+
struct hid_driver;
struct hid_ll_driver;
-struct hid_device { /* device report descriptor */
- __u8 *dev_rdesc;
- unsigned dev_rsize;
- __u8 *rdesc;
- unsigned rsize;
+struct hid_device {
+ const __u8 *dev_rdesc; /* device report descriptor */
+ const __u8 *bpf_rdesc; /* bpf modified report descriptor, if any */
+ const __u8 *rdesc; /* currently used report descriptor */
+ unsigned int dev_rsize;
+ unsigned int bpf_rsize;
+ unsigned int rsize;
+ unsigned int collection_size; /* Number of allocated hid_collections */
struct hid_collection *collection; /* List of HID collections */
- unsigned collection_size; /* Number of allocated hid_collections */
- unsigned maxcollection; /* Number of parsed collections */
- unsigned maxapplication; /* Number of applications */
+ unsigned int maxcollection; /* Number of parsed collections */
+ unsigned int maxapplication; /* Number of applications */
__u16 bus; /* BUS ID */
__u16 group; /* Report group */
__u32 vendor; /* Vendor ID */
@@ -456,37 +656,45 @@ struct hid_device { /* device report descriptor */
enum hid_type type; /* device type (mouse, kbd, ...) */
unsigned country; /* HID country */
struct hid_report_enum report_enum[HID_REPORT_TYPES];
+ struct work_struct led_work; /* delayed LED worker */
- struct semaphore driver_lock; /* protects the current driver, except during input */
struct semaphore driver_input_lock; /* protects the current driver */
struct device dev; /* device */
struct hid_driver *driver;
- struct hid_ll_driver *ll_driver;
+ void *devres_group_id; /* ID of probe devres group */
+
+ const struct hid_ll_driver *ll_driver;
+ struct mutex ll_open_lock;
+ unsigned int ll_open_count;
#ifdef CONFIG_HID_BATTERY_STRENGTH
/*
* Power supply information for HID devices which report
- * battery strength. power_supply is registered iff
- * battery.name is non-NULL.
+ * battery strength. power_supply was successfully registered if
+ * battery is non-NULL.
*/
- struct power_supply battery;
+ struct power_supply *battery;
+ __s32 battery_capacity;
__s32 battery_min;
__s32 battery_max;
__s32 battery_report_type;
__s32 battery_report_id;
+ __s32 battery_charge_status;
+ enum hid_battery_status battery_status;
+ bool battery_avoid_query;
+ ktime_t battery_ratelimit_time;
#endif
- unsigned int status; /* see STAT flags above */
+ unsigned long status; /* see STAT flags above */
unsigned claimed; /* Claimed by hidinput, hiddev? */
unsigned quirks; /* Various quirks the device can pull on us */
- bool io_started; /* Protected by driver_lock. If IO has started */
+ unsigned initial_quirks; /* Initial set of quirks supplied when creating device */
+ bool io_started; /* If IO has started */
struct list_head inputs; /* The list of inputs */
void *hiddev; /* The hiddev structure */
void *hidraw;
- int minor; /* Hiddev minor number */
- int open; /* is the device open by anyone? */
char name[128]; /* Device name */
char phys[64]; /* Device physical location */
char uniq[64]; /* Device unique identifier (serial #) */
@@ -503,12 +711,6 @@ struct hid_device { /* device report descriptor */
struct hid_usage *, __s32);
void (*hiddev_report_event) (struct hid_device *, struct hid_report *);
- /* handler for raw input (Get_Report) data, used by hidraw */
- int (*hid_get_raw_report) (struct hid_device *, unsigned char, __u8 *, size_t, unsigned char);
-
- /* handler for raw output data, used by hidraw */
- int (*hid_output_raw_report) (struct hid_device *, __u8 *, size_t, unsigned char);
-
/* debugging support via debugfs */
unsigned short debug;
struct dentry *debug_dir;
@@ -517,8 +719,20 @@ struct hid_device { /* device report descriptor */
struct list_head debug_list;
spinlock_t debug_list_lock;
wait_queue_head_t debug_wait;
+ struct kref ref;
+
+ unsigned int id; /* system unique id */
+
+#ifdef CONFIG_HID_BPF
+ struct hid_bpf bpf; /* hid-bpf data */
+#endif /* CONFIG_HID_BPF */
};
+void hiddev_free(struct kref *ref);
+
+#define to_hid_device(pdev) \
+ container_of(pdev, struct hid_device, dev)
+
static inline void *hid_get_drvdata(struct hid_device *hdev)
{
return dev_get_drvdata(&hdev->dev);
@@ -532,14 +746,20 @@ static inline void hid_set_drvdata(struct hid_device *hdev, void *data)
#define HID_GLOBAL_STACK_SIZE 4
#define HID_COLLECTION_STACK_SIZE 4
+#define HID_SCAN_FLAG_MT_WIN_8 BIT(0)
+#define HID_SCAN_FLAG_VENDOR_SPECIFIC BIT(1)
+#define HID_SCAN_FLAG_GD_POINTER BIT(2)
+
struct hid_parser {
struct hid_global global;
struct hid_global global_stack[HID_GLOBAL_STACK_SIZE];
- unsigned global_stack_ptr;
+ unsigned int global_stack_ptr;
struct hid_local local;
- unsigned collection_stack[HID_COLLECTION_STACK_SIZE];
- unsigned collection_stack_ptr;
+ unsigned int *collection_stack;
+ unsigned int collection_stack_ptr;
+ unsigned int collection_stack_size;
struct hid_device *device;
+ unsigned int scan_flags;
};
struct hid_class_descriptor {
@@ -553,8 +773,9 @@ struct hid_descriptor {
__le16 bcdHID;
__u8 bCountryCode;
__u8 bNumDescriptors;
+ struct hid_class_descriptor rpt_desc;
- struct hid_class_descriptor desc[1];
+ struct hid_class_descriptor opt_descs[];
} __attribute__ ((packed));
#define HID_DEVICE(b, g, ven, prod) \
@@ -563,6 +784,8 @@ struct hid_descriptor {
.bus = BUS_USB, .vendor = (ven), .product = (prod)
#define HID_BLUETOOTH_DEVICE(ven, prod) \
.bus = BUS_BLUETOOTH, .vendor = (ven), .product = (prod)
+#define HID_I2C_DEVICE(ven, prod) \
+ .bus = BUS_I2C, .vendor = (ven), .product = (prod)
#define HID_REPORT_ID(rep) \
.report_type = (rep)
@@ -587,6 +810,7 @@ struct hid_usage_id {
* to be called)
* @dyn_list: list of dynamically added device ids
* @dyn_lock: lock protecting @dyn_list
+ * @match: check if the given device is handled by this driver
* @probe: new device inserted
* @remove: device removed (NULL if not a hot-plug capable driver)
* @report_table: on which reports to call raw_event (NULL means all)
@@ -602,13 +826,15 @@ struct hid_usage_id {
* @suspend: invoked on suspend (NULL means nop)
* @resume: invoked on resume if device was not reset (NULL means nop)
* @reset_resume: invoked on resume if device was reset (NULL means nop)
+ * @on_hid_hw_open: invoked when hid core opens first instance (NULL means nop)
+ * @on_hid_hw_close: invoked when hid core closes last instance (NULL means nop)
*
* probe should return -errno on error, or 0 on success. During probe,
* input will not be passed to raw_event unless hid_device_io_start is
* called.
*
- * raw_event and event should return 0 on no action performed, 1 when no
- * further processing should be done and negative on error
+ * raw_event and event should return negative on error, any other value will
+ * pass the event on to .event() typically return 0 for success.
*
* input_mapping shall return a negative value to completely ignore this usage
* (e.g. doubled or invalid usage), zero to continue with parsing of this
@@ -621,12 +847,13 @@ struct hid_usage_id {
* zero from them.
*/
struct hid_driver {
- char *name;
+ const char *name;
const struct hid_device_id *id_table;
struct list_head dyn_list;
spinlock_t dyn_lock;
+ bool (*match)(struct hid_device *dev, bool ignore_special_driver);
int (*probe)(struct hid_device *dev, const struct hid_device_id *id);
void (*remove)(struct hid_device *dev);
@@ -638,7 +865,7 @@ struct hid_driver {
struct hid_usage *usage, __s32 value);
void (*report)(struct hid_device *hdev, struct hid_report *report);
- __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
+ const __u8 *(*report_fixup)(struct hid_device *hdev, __u8 *buf,
unsigned int *size);
int (*input_mapping)(struct hid_device *hdev,
@@ -647,32 +874,41 @@ struct hid_driver {
int (*input_mapped)(struct hid_device *hdev,
struct hid_input *hidinput, struct hid_field *field,
struct hid_usage *usage, unsigned long **bit, int *max);
- void (*input_configured)(struct hid_device *hdev,
- struct hid_input *hidinput);
+ int (*input_configured)(struct hid_device *hdev,
+ struct hid_input *hidinput);
void (*feature_mapping)(struct hid_device *hdev,
struct hid_field *field,
struct hid_usage *usage);
-#ifdef CONFIG_PM
+
int (*suspend)(struct hid_device *hdev, pm_message_t message);
int (*resume)(struct hid_device *hdev);
int (*reset_resume)(struct hid_device *hdev);
-#endif
+ void (*on_hid_hw_open)(struct hid_device *hdev);
+ void (*on_hid_hw_close)(struct hid_device *hdev);
+
/* private: */
struct device_driver driver;
};
+#define to_hid_driver(pdrv) \
+ container_of(pdrv, struct hid_driver, driver)
+
/**
- * hid_ll_driver - low level driver callbacks
+ * struct hid_ll_driver - low level driver callbacks
* @start: called on probe to start the device
* @stop: called on remove
* @open: called by input layer on open
* @close: called by input layer on close
- * @hidinput_input_event: event input event (e.g. ff or leds)
+ * @power: request underlying hardware to enter requested power mode
* @parse: this method is called only once to parse the device data,
* shouldn't allocate anything to not leak memory
* @request: send report request to device (e.g. feature report)
* @wait: wait for buffered io to complete (send/recv reports)
+ * @raw_request: send raw report request to device (e.g. feature report)
+ * @output_report: send output report to device
* @idle: send idle request to device
+ * @may_wakeup: return if device may act as a wakeup source during system-suspend
+ * @max_buffer_size: over-ride maximum data buffer size (default: HID_MAX_BUFFER_SIZE)
*/
struct hid_ll_driver {
int (*start)(struct hid_device *hdev);
@@ -683,34 +919,46 @@ struct hid_ll_driver {
int (*power)(struct hid_device *hdev, int level);
- int (*hidinput_input_event) (struct input_dev *idev, unsigned int type,
- unsigned int code, int value);
-
int (*parse)(struct hid_device *hdev);
void (*request)(struct hid_device *hdev,
struct hid_report *report, int reqtype);
int (*wait)(struct hid_device *hdev);
+
+ int (*raw_request) (struct hid_device *hdev, unsigned char reportnum,
+ __u8 *buf, size_t len, unsigned char rtype,
+ int reqtype);
+
+ int (*output_report) (struct hid_device *hdev, __u8 *buf, size_t len);
+
int (*idle)(struct hid_device *hdev, int report, int idle, int reqtype);
+ bool (*may_wakeup)(struct hid_device *hdev);
+ unsigned int max_buffer_size;
};
+extern bool hid_is_usb(const struct hid_device *hdev);
+
#define PM_HINT_FULLON 1<<5
#define PM_HINT_NORMAL 1<<1
/* Applications from HID Usage Tables 4/8/99 Version 1.1 */
/* We ignore a few input applications that are not widely used */
-#define IS_INPUT_APPLICATION(a) (((a >= 0x00010000) && (a <= 0x00010008)) || (a == 0x00010080) || (a == 0x000c0001) || ((a >= 0x000d0002) && (a <= 0x000d0006)))
+#define IS_INPUT_APPLICATION(a) \
+ (((a >= HID_UP_GENDESK) && (a <= HID_GD_MULTIAXIS)) \
+ || ((a >= HID_DG_DIGITIZER) && (a <= HID_DG_WHITEBOARD)) \
+ || (a == HID_GD_SYSTEM_CONTROL) || (a == HID_CP_CONSUMER_CONTROL) \
+ || (a == HID_GD_WIRELESS_RADIO_CTLS))
/* HID core API */
-extern int hid_debug;
-
extern bool hid_ignore(struct hid_device *);
extern int hid_add_device(struct hid_device *);
extern void hid_destroy_device(struct hid_device *);
+extern const struct bus_type hid_bus_type;
+
extern int __must_check __hid_register_driver(struct hid_driver *,
struct module *, const char *mod_name);
@@ -736,29 +984,59 @@ extern void hidinput_hid_event(struct hid_device *, struct hid_field *, struct h
extern void hidinput_report_event(struct hid_device *hid, struct hid_report *report);
extern int hidinput_connect(struct hid_device *hid, unsigned int force);
extern void hidinput_disconnect(struct hid_device *);
+void hidinput_reset_resume(struct hid_device *hid);
+struct hid_field *hid_find_field(struct hid_device *hdev, unsigned int report_type,
+ unsigned int application, unsigned int usage);
int hid_set_field(struct hid_field *, unsigned, __s32);
-int hid_input_report(struct hid_device *, int type, u8 *, int, int);
-int hidinput_find_field(struct hid_device *hid, unsigned int type, unsigned int code, struct hid_field **field);
+int hid_input_report(struct hid_device *hid, enum hid_report_type type, u8 *data, u32 size,
+ int interrupt);
struct hid_field *hidinput_get_led_field(struct hid_device *hid);
unsigned int hidinput_count_leds(struct hid_device *hid);
__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code);
void hid_output_report(struct hid_report *report, __u8 *data);
+int __hid_request(struct hid_device *hid, struct hid_report *rep, enum hid_class_request reqtype);
+u8 *hid_alloc_report_buf(struct hid_report *report, gfp_t flags);
struct hid_device *hid_allocate_device(void);
-struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
-int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
+struct hid_report *hid_register_report(struct hid_device *device,
+ enum hid_report_type type, unsigned int id,
+ unsigned int application);
+int hid_parse_report(struct hid_device *hid, const __u8 *start, unsigned size);
+struct hid_report *hid_validate_values(struct hid_device *hid,
+ enum hid_report_type type, unsigned int id,
+ unsigned int field_index,
+ unsigned int report_counts);
+
+void hid_setup_resolution_multiplier(struct hid_device *hid);
int hid_open_report(struct hid_device *device);
int hid_check_keys_pressed(struct hid_device *hid);
int hid_connect(struct hid_device *hid, unsigned int connect_mask);
void hid_disconnect(struct hid_device *hid);
-const struct hid_device_id *hid_match_id(struct hid_device *hdev,
+bool hid_match_one_id(const struct hid_device *hdev,
+ const struct hid_device_id *id);
+const struct hid_device_id *hid_match_id(const struct hid_device *hdev,
const struct hid_device_id *id);
-s32 hid_snto32(__u32 value, unsigned n);
+const struct hid_device_id *hid_match_device(struct hid_device *hdev,
+ struct hid_driver *hdrv);
+bool hid_compare_device_paths(struct hid_device *hdev_a,
+ struct hid_device *hdev_b, char separator);
+__u32 hid_field_extract(const struct hid_device *hid, __u8 *report,
+ unsigned offset, unsigned n);
+
+#ifdef CONFIG_PM
+int hid_driver_suspend(struct hid_device *hdev, pm_message_t state);
+int hid_driver_reset_resume(struct hid_device *hdev);
+int hid_driver_resume(struct hid_device *hdev);
+#else
+static inline int hid_driver_suspend(struct hid_device *hdev, pm_message_t state) { return 0; }
+static inline int hid_driver_reset_resume(struct hid_device *hdev) { return 0; }
+static inline int hid_driver_resume(struct hid_device *hdev) { return 0; }
+#endif
/**
* hid_device_io_start - enable HID input during probe, remove
*
- * @hid - the device
+ * @hid: the device
*
* This should only be called during probe or remove and only be
* called by the thread calling probe or remove. It will allow
@@ -766,7 +1044,7 @@ s32 hid_snto32(__u32 value, unsigned n);
*/
static inline void hid_device_io_start(struct hid_device *hid) {
if (hid->io_started) {
- dev_warn(&hid->dev, "io already started");
+ dev_warn(&hid->dev, "io already started\n");
return;
}
hid->io_started = true;
@@ -776,7 +1054,7 @@ static inline void hid_device_io_start(struct hid_device *hid) {
/**
* hid_device_io_stop - disable HID input during probe, remove
*
- * @hid - the device
+ * @hid: the device
*
* Should only be called after hid_device_io_start. It will prevent
* incoming packets from going to the driver for the duration of
@@ -786,7 +1064,7 @@ static inline void hid_device_io_start(struct hid_device *hid) {
*/
static inline void hid_device_io_stop(struct hid_device *hid) {
if (!hid->io_started) {
- dev_warn(&hid->dev, "io already stopped");
+ dev_warn(&hid->dev, "io already stopped\n");
return;
}
hid->io_started = false;
@@ -802,39 +1080,65 @@ static inline void hid_device_io_stop(struct hid_device *hid) {
* @max: maximal valid usage->code to consider later (out parameter)
* @type: input event type (EV_KEY, EV_REL, ...)
* @c: code which corresponds to this usage and type
+ *
+ * The value pointed to by @bit will be set to NULL if either @type is
+ * an unhandled event type, or if @c is out of range for @type. This
+ * can be used as an error condition.
*/
static inline void hid_map_usage(struct hid_input *hidinput,
struct hid_usage *usage, unsigned long **bit, int *max,
- __u8 type, __u16 c)
+ __u8 type, unsigned int c)
{
struct input_dev *input = hidinput->input;
-
- usage->type = type;
- usage->code = c;
+ unsigned long *bmap = NULL;
+ unsigned int limit = 0;
switch (type) {
case EV_ABS:
- *bit = input->absbit;
- *max = ABS_MAX;
+ bmap = input->absbit;
+ limit = ABS_MAX;
break;
case EV_REL:
- *bit = input->relbit;
- *max = REL_MAX;
+ bmap = input->relbit;
+ limit = REL_MAX;
break;
case EV_KEY:
- *bit = input->keybit;
- *max = KEY_MAX;
+ bmap = input->keybit;
+ limit = KEY_MAX;
break;
case EV_LED:
- *bit = input->ledbit;
- *max = LED_MAX;
+ bmap = input->ledbit;
+ limit = LED_MAX;
+ break;
+ case EV_MSC:
+ bmap = input->mscbit;
+ limit = MSC_MAX;
break;
}
+
+ if (unlikely(c > limit || !bmap)) {
+ pr_warn_ratelimited("%s: Invalid code %d type %d\n",
+ input->name, c, type);
+ *bit = NULL;
+ return;
+ }
+
+ usage->type = type;
+ usage->code = c;
+ *max = limit;
+ *bit = bmap;
}
/**
* hid_map_usage_clear - map usage input bits and clear the input bit
*
+ * @hidinput: hidinput which we are interested in
+ * @usage: usage to fill in
+ * @bit: pointer to input->{}bit (out parameter)
+ * @max: maximal valid usage->code to consider later (out parameter)
+ * @type: input event type (EV_KEY, EV_REL, ...)
+ * @c: code which corresponds to this usage and type
+ *
* The same as hid_map_usage, except the @c bit is also cleared in supported
* bits (@bit).
*/
@@ -843,7 +1147,8 @@ static inline void hid_map_usage_clear(struct hid_input *hidinput,
__u8 type, __u16 c)
{
hid_map_usage(hidinput, usage, bit, max, type, c);
- clear_bit(c, *bit);
+ if (*bit)
+ clear_bit(usage->code, *bit);
}
/**
@@ -860,69 +1165,25 @@ static inline int __must_check hid_parse(struct hid_device *hdev)
return hid_open_report(hdev);
}
-/**
- * hid_hw_start - start underlaying HW
- *
- * @hdev: hid device
- * @connect_mask: which outputs to connect, see HID_CONNECT_*
- *
- * Call this in probe function *after* hid_parse. This will setup HW buffers
- * and start the device (if not deffered to device open). hid_hw_stop must be
- * called if this was successful.
- */
-static inline int __must_check hid_hw_start(struct hid_device *hdev,
- unsigned int connect_mask)
-{
- int ret = hdev->ll_driver->start(hdev);
- if (ret || !connect_mask)
- return ret;
- ret = hid_connect(hdev, connect_mask);
- if (ret)
- hdev->ll_driver->stop(hdev);
- return ret;
-}
-
-/**
- * hid_hw_stop - stop underlaying HW
- *
- * @hdev: hid device
- *
- * This is usually called from remove function or from probe when something
- * failed and hid_hw_start was called already.
- */
-static inline void hid_hw_stop(struct hid_device *hdev)
-{
- hid_disconnect(hdev);
- hdev->ll_driver->stop(hdev);
-}
-
-/**
- * hid_hw_open - signal underlaying HW to start delivering events
- *
- * @hdev: hid device
- *
- * Tell underlying HW to start delivering events from the device.
- * This function should be called sometime after successful call
- * to hid_hiw_start().
- */
-static inline int __must_check hid_hw_open(struct hid_device *hdev)
-{
- return hdev->ll_driver->open(hdev);
-}
-
-/**
- * hid_hw_close - signal underlaying HW to stop delivering events
- *
- * @hdev: hid device
- *
- * This function indicates that we are not interested in the events
- * from this device anymore. Delivery of events may or may not stop,
- * depending on the number of users still outstanding.
- */
-static inline void hid_hw_close(struct hid_device *hdev)
-{
- hdev->ll_driver->close(hdev);
-}
+int __must_check hid_hw_start(struct hid_device *hdev,
+ unsigned int connect_mask);
+void hid_hw_stop(struct hid_device *hdev);
+int __must_check hid_hw_open(struct hid_device *hdev);
+void hid_hw_close(struct hid_device *hdev);
+void hid_hw_request(struct hid_device *hdev,
+ struct hid_report *report, enum hid_class_request reqtype);
+int __hid_hw_raw_request(struct hid_device *hdev,
+ unsigned char reportnum, __u8 *buf,
+ size_t len, enum hid_report_type rtype,
+ enum hid_class_request reqtype,
+ __u64 source, bool from_bpf);
+int __hid_hw_output_report(struct hid_device *hdev, __u8 *buf, size_t len, __u64 source,
+ bool from_bpf);
+int hid_hw_raw_request(struct hid_device *hdev,
+ unsigned char reportnum, __u8 *buf,
+ size_t len, enum hid_report_type rtype,
+ enum hid_class_request reqtype);
+int hid_hw_output_report(struct hid_device *hdev, __u8 *buf, size_t len);
/**
* hid_hw_power - requests underlying HW to go into given power mode
@@ -941,20 +1202,6 @@ static inline int hid_hw_power(struct hid_device *hdev, int level)
/**
- * hid_hw_request - send report request to device
- *
- * @hdev: hid device
- * @report: report to send
- * @reqtype: hid request type
- */
-static inline void hid_hw_request(struct hid_device *hdev,
- struct hid_report *report, int reqtype)
-{
- if (hdev->ll_driver->request)
- hdev->ll_driver->request(hdev, report, reqtype);
-}
-
-/**
* hid_hw_idle - send idle request to device
*
* @hdev: hid device
@@ -963,7 +1210,7 @@ static inline void hid_hw_request(struct hid_device *hdev,
* @reqtype: hid request type
*/
static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle,
- int reqtype)
+ enum hid_class_request reqtype)
{
if (hdev->ll_driver->idle)
return hdev->ll_driver->idle(hdev, report, idle, reqtype);
@@ -972,6 +1219,22 @@ static inline int hid_hw_idle(struct hid_device *hdev, int report, int idle,
}
/**
+ * hid_hw_may_wakeup - return if the hid device may act as a wakeup source during system-suspend
+ *
+ * @hdev: hid device
+ */
+static inline bool hid_hw_may_wakeup(struct hid_device *hdev)
+{
+ if (hdev->ll_driver->may_wakeup)
+ return hdev->ll_driver->may_wakeup(hdev);
+
+ if (hdev->dev.parent)
+ return device_may_wakeup(hdev->dev.parent);
+
+ return false;
+}
+
+/**
* hid_hw_wait - wait for buffered io to complete
*
* @hdev: hid device
@@ -982,44 +1245,63 @@ static inline void hid_hw_wait(struct hid_device *hdev)
hdev->ll_driver->wait(hdev);
}
-int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
- int interrupt);
-
-/* HID quirks API */
-u32 usbhid_lookup_quirk(const u16 idVendor, const u16 idProduct);
-int usbhid_quirks_init(char **quirks_param);
-void usbhid_quirks_exit(void);
-void usbhid_set_leds(struct hid_device *hid);
+/**
+ * hid_report_len - calculate the report length
+ *
+ * @report: the report whose length we want to know
+ *
+ * The length counts the report ID byte, but only if the ID is nonzero
+ * and therefore is included in the report. Reports whose ID is zero
+ * never include an ID byte.
+ */
+static inline u32 hid_report_len(struct hid_report *report)
+{
+ return DIV_ROUND_UP(report->size, 8) + (report->id > 0);
+}
-#ifdef CONFIG_HID_PID
-int hid_pidff_init(struct hid_device *hid);
-#else
-#define hid_pidff_init NULL
-#endif
+int hid_report_raw_event(struct hid_device *hid, enum hid_report_type type, u8 *data, u32 size,
+ int interrupt);
-#define dbg_hid(format, arg...) \
-do { \
- if (hid_debug) \
- printk(KERN_DEBUG "%s: " format, __FILE__, ##arg); \
-} while (0)
-
-#define hid_printk(level, hid, fmt, arg...) \
- dev_printk(level, &(hid)->dev, fmt, ##arg)
-#define hid_emerg(hid, fmt, arg...) \
- dev_emerg(&(hid)->dev, fmt, ##arg)
-#define hid_crit(hid, fmt, arg...) \
- dev_crit(&(hid)->dev, fmt, ##arg)
-#define hid_alert(hid, fmt, arg...) \
- dev_alert(&(hid)->dev, fmt, ##arg)
-#define hid_err(hid, fmt, arg...) \
- dev_err(&(hid)->dev, fmt, ##arg)
-#define hid_notice(hid, fmt, arg...) \
- dev_notice(&(hid)->dev, fmt, ##arg)
-#define hid_warn(hid, fmt, arg...) \
- dev_warn(&(hid)->dev, fmt, ##arg)
-#define hid_info(hid, fmt, arg...) \
- dev_info(&(hid)->dev, fmt, ##arg)
-#define hid_dbg(hid, fmt, arg...) \
- dev_dbg(&(hid)->dev, fmt, ##arg)
+/* HID quirks API */
+unsigned long hid_lookup_quirk(const struct hid_device *hdev);
+int hid_quirks_init(char **quirks_param, __u16 bus, int count);
+void hid_quirks_exit(__u16 bus);
+
+#define dbg_hid(fmt, ...) pr_debug("%s: " fmt, __FILE__, ##__VA_ARGS__)
+
+#define hid_err(hid, fmt, ...) \
+ dev_err(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_notice(hid, fmt, ...) \
+ dev_notice(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_warn(hid, fmt, ...) \
+ dev_warn(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_warn_ratelimited(hid, fmt, ...) \
+ dev_warn_ratelimited(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_info(hid, fmt, ...) \
+ dev_info(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_dbg(hid, fmt, ...) \
+ dev_dbg(&(hid)->dev, fmt, ##__VA_ARGS__)
+
+#define hid_err_once(hid, fmt, ...) \
+ dev_err_once(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_notice_once(hid, fmt, ...) \
+ dev_notice_once(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_warn_once(hid, fmt, ...) \
+ dev_warn_once(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_info_once(hid, fmt, ...) \
+ dev_info_once(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_dbg_once(hid, fmt, ...) \
+ dev_dbg_once(&(hid)->dev, fmt, ##__VA_ARGS__)
+
+#define hid_err_ratelimited(hid, fmt, ...) \
+ dev_err_ratelimited(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_notice_ratelimited(hid, fmt, ...) \
+ dev_notice_ratelimited(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_warn_ratelimited(hid, fmt, ...) \
+ dev_warn_ratelimited(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_info_ratelimited(hid, fmt, ...) \
+ dev_info_ratelimited(&(hid)->dev, fmt, ##__VA_ARGS__)
+#define hid_dbg_ratelimited(hid, fmt, ...) \
+ dev_dbg_ratelimited(&(hid)->dev, fmt, ##__VA_ARGS__)
#endif