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bcc31692a1
Before this change there were 16 vid:pid based quirks to ignore the battery
reported by Elan I2C-HID touchscreens on various Asus and HP laptops.
And a report has been received that the 04F3:2A00 I2C touchscreen on
the HP ProBook x360 11 G5 EE/86CF also reports a non present battery.
Since I2C-HID devices are always builtin to laptops they are not battery
owered so it should be safe to just ignore the battery on all Elan I2C-HID
devices, rather then adding a 17th quirk for the 04F3:2A00 touchscreen.
As reported in the changelog of commit a3a5a37efb
("HID: Ignore battery
for ELAN touchscreens 2F2C and 4116"), which added 2 new Elan touchscreen
quirks about a month ago, the HID reported battery seems to be related
to a stylus being used. But even when a stylus is in use it does not
properly report the charge of the stylus battery, instead the reported
battery charge jumps from 0% to 1%. So it is best to just ignore the
HID battery.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2302776
Cc: Louis Dalibard <ontake@ontake.dev>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Jiri Kosina <jkosina@suse.com>
2394 lines
67 KiB
C
2394 lines
67 KiB
C
// SPDX-License-Identifier: GPL-2.0-or-later
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/*
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* Copyright (c) 2000-2001 Vojtech Pavlik
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* Copyright (c) 2006-2010 Jiri Kosina
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*
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* HID to Linux Input mapping
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*/
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/*
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*
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* Should you need to contact me, the author, you can do so either by
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* e-mail - mail your message to <vojtech@ucw.cz>, or by paper mail:
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* Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic
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*/
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#include <linux/module.h>
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#include <linux/slab.h>
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#include <linux/kernel.h>
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#include <linux/hid.h>
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#include <linux/hid-debug.h>
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#include "hid-ids.h"
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#define unk KEY_UNKNOWN
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static const unsigned char hid_keyboard[256] = {
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0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38,
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50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3,
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4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26,
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27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64,
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65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106,
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105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71,
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72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190,
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191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113,
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115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk,
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122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,
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unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
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unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk,
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unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,
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unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk,
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29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113,
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150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk
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};
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static const struct {
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__s32 x;
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__s32 y;
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} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}};
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struct usage_priority {
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__u32 usage; /* the HID usage associated */
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bool global; /* we assume all usages to be slotted,
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* unless global
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*/
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unsigned int slot_overwrite; /* for globals: allows to set the usage
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* before or after the slots
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*/
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};
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/*
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* hid-input will convert this list into priorities:
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* the first element will have the highest priority
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* (the length of the following array) and the last
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* element the lowest (1).
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*
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* hid-input will then shift the priority by 8 bits to leave some space
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* in case drivers want to interleave other fields.
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*
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* To accommodate slotted devices, the slot priority is
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* defined in the next 8 bits (defined by 0xff - slot).
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*
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* If drivers want to add fields before those, hid-input will
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* leave out the first 8 bits of the priority value.
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*
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* This still leaves us 65535 individual priority values.
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*/
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static const struct usage_priority hidinput_usages_priorities[] = {
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{ /* Eraser (eraser touching) must always come before tipswitch */
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.usage = HID_DG_ERASER,
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},
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{ /* Invert must always come before In Range */
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.usage = HID_DG_INVERT,
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},
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{ /* Is the tip of the tool touching? */
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.usage = HID_DG_TIPSWITCH,
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},
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{ /* Tip Pressure might emulate tip switch */
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.usage = HID_DG_TIPPRESSURE,
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},
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{ /* In Range needs to come after the other tool states */
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.usage = HID_DG_INRANGE,
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},
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};
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#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c))
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#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c))
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#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c))
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#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c))
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#define map_msc(c) hid_map_usage(hidinput, usage, &bit, &max, EV_MSC, (c))
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#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
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&max, EV_ABS, (c))
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#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \
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&max, EV_KEY, (c))
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static bool match_scancode(struct hid_usage *usage,
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unsigned int cur_idx, unsigned int scancode)
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{
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return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode;
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}
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static bool match_keycode(struct hid_usage *usage,
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unsigned int cur_idx, unsigned int keycode)
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{
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/*
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* We should exclude unmapped usages when doing lookup by keycode.
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*/
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return (usage->type == EV_KEY && usage->code == keycode);
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}
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static bool match_index(struct hid_usage *usage,
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unsigned int cur_idx, unsigned int idx)
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{
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return cur_idx == idx;
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}
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typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage,
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unsigned int cur_idx, unsigned int val);
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static struct hid_usage *hidinput_find_key(struct hid_device *hid,
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hid_usage_cmp_t match,
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unsigned int value,
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unsigned int *usage_idx)
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{
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unsigned int i, j, k, cur_idx = 0;
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struct hid_report *report;
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struct hid_usage *usage;
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for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
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list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
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for (i = 0; i < report->maxfield; i++) {
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for (j = 0; j < report->field[i]->maxusage; j++) {
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usage = report->field[i]->usage + j;
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if (usage->type == EV_KEY || usage->type == 0) {
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if (match(usage, cur_idx, value)) {
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if (usage_idx)
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*usage_idx = cur_idx;
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return usage;
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}
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cur_idx++;
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}
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}
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}
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}
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}
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return NULL;
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}
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static struct hid_usage *hidinput_locate_usage(struct hid_device *hid,
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const struct input_keymap_entry *ke,
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unsigned int *index)
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{
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struct hid_usage *usage;
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unsigned int scancode;
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if (ke->flags & INPUT_KEYMAP_BY_INDEX)
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usage = hidinput_find_key(hid, match_index, ke->index, index);
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else if (input_scancode_to_scalar(ke, &scancode) == 0)
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usage = hidinput_find_key(hid, match_scancode, scancode, index);
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else
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usage = NULL;
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return usage;
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}
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static int hidinput_getkeycode(struct input_dev *dev,
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struct input_keymap_entry *ke)
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{
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struct hid_device *hid = input_get_drvdata(dev);
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struct hid_usage *usage;
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unsigned int scancode, index;
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usage = hidinput_locate_usage(hid, ke, &index);
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if (usage) {
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ke->keycode = usage->type == EV_KEY ?
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usage->code : KEY_RESERVED;
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ke->index = index;
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scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE);
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ke->len = sizeof(scancode);
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memcpy(ke->scancode, &scancode, sizeof(scancode));
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return 0;
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}
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return -EINVAL;
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}
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static int hidinput_setkeycode(struct input_dev *dev,
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const struct input_keymap_entry *ke,
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unsigned int *old_keycode)
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{
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struct hid_device *hid = input_get_drvdata(dev);
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struct hid_usage *usage;
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usage = hidinput_locate_usage(hid, ke, NULL);
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if (usage) {
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*old_keycode = usage->type == EV_KEY ?
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usage->code : KEY_RESERVED;
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usage->type = EV_KEY;
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usage->code = ke->keycode;
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clear_bit(*old_keycode, dev->keybit);
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set_bit(usage->code, dev->keybit);
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dbg_hid("Assigned keycode %d to HID usage code %x\n",
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usage->code, usage->hid);
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/*
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* Set the keybit for the old keycode if the old keycode is used
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* by another key
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*/
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if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL))
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set_bit(*old_keycode, dev->keybit);
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return 0;
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}
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return -EINVAL;
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}
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/**
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* hidinput_calc_abs_res - calculate an absolute axis resolution
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* @field: the HID report field to calculate resolution for
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* @code: axis code
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*
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* The formula is:
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* (logical_maximum - logical_minimum)
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* resolution = ----------------------------------------------------------
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* (physical_maximum - physical_minimum) * 10 ^ unit_exponent
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*
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* as seen in the HID specification v1.11 6.2.2.7 Global Items.
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*
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* Only exponent 1 length units are processed. Centimeters and inches are
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* converted to millimeters. Degrees are converted to radians.
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*/
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__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code)
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{
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__s32 unit_exponent = field->unit_exponent;
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__s32 logical_extents = field->logical_maximum -
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field->logical_minimum;
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__s32 physical_extents = field->physical_maximum -
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field->physical_minimum;
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__s32 prev;
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/* Check if the extents are sane */
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if (logical_extents <= 0 || physical_extents <= 0)
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return 0;
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/*
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* Verify and convert units.
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* See HID specification v1.11 6.2.2.7 Global Items for unit decoding
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*/
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switch (code) {
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case ABS_X:
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case ABS_Y:
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case ABS_Z:
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case ABS_MT_POSITION_X:
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case ABS_MT_POSITION_Y:
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case ABS_MT_TOOL_X:
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case ABS_MT_TOOL_Y:
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case ABS_MT_TOUCH_MAJOR:
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case ABS_MT_TOUCH_MINOR:
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if (field->unit == 0x11) { /* If centimeters */
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/* Convert to millimeters */
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unit_exponent += 1;
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} else if (field->unit == 0x13) { /* If inches */
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/* Convert to millimeters */
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prev = physical_extents;
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physical_extents *= 254;
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if (physical_extents < prev)
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return 0;
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unit_exponent -= 1;
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} else {
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return 0;
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}
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break;
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case ABS_RX:
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case ABS_RY:
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case ABS_RZ:
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case ABS_WHEEL:
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case ABS_TILT_X:
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case ABS_TILT_Y:
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if (field->unit == 0x14) { /* If degrees */
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/* Convert to radians */
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prev = logical_extents;
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logical_extents *= 573;
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if (logical_extents < prev)
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return 0;
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unit_exponent += 1;
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} else if (field->unit != 0x12) { /* If not radians */
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return 0;
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}
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break;
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default:
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return 0;
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}
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/* Apply negative unit exponent */
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for (; unit_exponent < 0; unit_exponent++) {
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prev = logical_extents;
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logical_extents *= 10;
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if (logical_extents < prev)
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return 0;
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}
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/* Apply positive unit exponent */
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for (; unit_exponent > 0; unit_exponent--) {
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prev = physical_extents;
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physical_extents *= 10;
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if (physical_extents < prev)
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return 0;
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}
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/* Calculate resolution */
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return DIV_ROUND_CLOSEST(logical_extents, physical_extents);
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}
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EXPORT_SYMBOL_GPL(hidinput_calc_abs_res);
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#ifdef CONFIG_HID_BATTERY_STRENGTH
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static enum power_supply_property hidinput_battery_props[] = {
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POWER_SUPPLY_PROP_PRESENT,
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POWER_SUPPLY_PROP_ONLINE,
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POWER_SUPPLY_PROP_CAPACITY,
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POWER_SUPPLY_PROP_MODEL_NAME,
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POWER_SUPPLY_PROP_STATUS,
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POWER_SUPPLY_PROP_SCOPE,
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};
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#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */
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#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */
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#define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */
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#define HID_BATTERY_QUIRK_AVOID_QUERY (1 << 3) /* do not query the battery */
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static const struct hid_device_id hid_battery_quirks[] = {
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
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USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO),
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HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
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USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI),
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HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
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USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI),
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HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
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USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO),
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HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
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USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI),
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HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE,
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USB_DEVICE_ID_APPLE_MAGICTRACKPAD),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM,
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USB_DEVICE_ID_ELECOM_BM084),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL,
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USB_DEVICE_ID_SYMBOL_SCANNER_3),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK,
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USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH,
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USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN),
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HID_BATTERY_QUIRK_IGNORE },
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{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L),
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HID_BATTERY_QUIRK_AVOID_QUERY },
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{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW),
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HID_BATTERY_QUIRK_AVOID_QUERY },
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{ HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW),
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HID_BATTERY_QUIRK_AVOID_QUERY },
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{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_CHROMEBOOK_TROGDOR_POMPOM),
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HID_BATTERY_QUIRK_AVOID_QUERY },
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/*
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* Elan I2C-HID touchscreens seem to all report a non present battery,
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* set HID_BATTERY_QUIRK_IGNORE for all Elan I2C-HID devices.
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*/
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{ HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, HID_ANY_ID), HID_BATTERY_QUIRK_IGNORE },
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{}
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};
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|
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static unsigned find_battery_quirk(struct hid_device *hdev)
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{
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unsigned quirks = 0;
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const struct hid_device_id *match;
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match = hid_match_id(hdev, hid_battery_quirks);
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if (match != NULL)
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quirks = match->driver_data;
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return quirks;
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}
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|
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static int hidinput_scale_battery_capacity(struct hid_device *dev,
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int value)
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|
{
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if (dev->battery_min < dev->battery_max &&
|
|
value >= dev->battery_min && value <= dev->battery_max)
|
|
value = ((value - dev->battery_min) * 100) /
|
|
(dev->battery_max - dev->battery_min);
|
|
|
|
return value;
|
|
}
|
|
|
|
static int hidinput_query_battery_capacity(struct hid_device *dev)
|
|
{
|
|
u8 *buf;
|
|
int ret;
|
|
|
|
buf = kmalloc(4, GFP_KERNEL);
|
|
if (!buf)
|
|
return -ENOMEM;
|
|
|
|
ret = hid_hw_raw_request(dev, dev->battery_report_id, buf, 4,
|
|
dev->battery_report_type, HID_REQ_GET_REPORT);
|
|
if (ret < 2) {
|
|
kfree(buf);
|
|
return -ENODATA;
|
|
}
|
|
|
|
ret = hidinput_scale_battery_capacity(dev, buf[1]);
|
|
kfree(buf);
|
|
return ret;
|
|
}
|
|
|
|
static int hidinput_get_battery_property(struct power_supply *psy,
|
|
enum power_supply_property prop,
|
|
union power_supply_propval *val)
|
|
{
|
|
struct hid_device *dev = power_supply_get_drvdata(psy);
|
|
int value;
|
|
int ret = 0;
|
|
|
|
switch (prop) {
|
|
case POWER_SUPPLY_PROP_PRESENT:
|
|
case POWER_SUPPLY_PROP_ONLINE:
|
|
val->intval = 1;
|
|
break;
|
|
|
|
case POWER_SUPPLY_PROP_CAPACITY:
|
|
if (dev->battery_status != HID_BATTERY_REPORTED &&
|
|
!dev->battery_avoid_query) {
|
|
value = hidinput_query_battery_capacity(dev);
|
|
if (value < 0)
|
|
return value;
|
|
} else {
|
|
value = dev->battery_capacity;
|
|
}
|
|
|
|
val->intval = value;
|
|
break;
|
|
|
|
case POWER_SUPPLY_PROP_MODEL_NAME:
|
|
val->strval = dev->name;
|
|
break;
|
|
|
|
case POWER_SUPPLY_PROP_STATUS:
|
|
if (dev->battery_status != HID_BATTERY_REPORTED &&
|
|
!dev->battery_avoid_query) {
|
|
value = hidinput_query_battery_capacity(dev);
|
|
if (value < 0)
|
|
return value;
|
|
|
|
dev->battery_capacity = value;
|
|
dev->battery_status = HID_BATTERY_QUERIED;
|
|
}
|
|
|
|
if (dev->battery_status == HID_BATTERY_UNKNOWN)
|
|
val->intval = POWER_SUPPLY_STATUS_UNKNOWN;
|
|
else
|
|
val->intval = dev->battery_charge_status;
|
|
break;
|
|
|
|
case POWER_SUPPLY_PROP_SCOPE:
|
|
val->intval = POWER_SUPPLY_SCOPE_DEVICE;
|
|
break;
|
|
|
|
default:
|
|
ret = -EINVAL;
|
|
break;
|
|
}
|
|
|
|
return ret;
|
|
}
|
|
|
|
static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
|
|
struct hid_field *field, bool is_percentage)
|
|
{
|
|
struct power_supply_desc *psy_desc;
|
|
struct power_supply_config psy_cfg = { .drv_data = dev, };
|
|
unsigned quirks;
|
|
s32 min, max;
|
|
int error;
|
|
|
|
if (dev->battery)
|
|
return 0; /* already initialized? */
|
|
|
|
quirks = find_battery_quirk(dev);
|
|
|
|
hid_dbg(dev, "device %x:%x:%x %d quirks %d\n",
|
|
dev->bus, dev->vendor, dev->product, dev->version, quirks);
|
|
|
|
if (quirks & HID_BATTERY_QUIRK_IGNORE)
|
|
return 0;
|
|
|
|
psy_desc = kzalloc(sizeof(*psy_desc), GFP_KERNEL);
|
|
if (!psy_desc)
|
|
return -ENOMEM;
|
|
|
|
psy_desc->name = kasprintf(GFP_KERNEL, "hid-%s-battery",
|
|
strlen(dev->uniq) ?
|
|
dev->uniq : dev_name(&dev->dev));
|
|
if (!psy_desc->name) {
|
|
error = -ENOMEM;
|
|
goto err_free_mem;
|
|
}
|
|
|
|
psy_desc->type = POWER_SUPPLY_TYPE_BATTERY;
|
|
psy_desc->properties = hidinput_battery_props;
|
|
psy_desc->num_properties = ARRAY_SIZE(hidinput_battery_props);
|
|
psy_desc->use_for_apm = 0;
|
|
psy_desc->get_property = hidinput_get_battery_property;
|
|
|
|
min = field->logical_minimum;
|
|
max = field->logical_maximum;
|
|
|
|
if (is_percentage || (quirks & HID_BATTERY_QUIRK_PERCENT)) {
|
|
min = 0;
|
|
max = 100;
|
|
}
|
|
|
|
if (quirks & HID_BATTERY_QUIRK_FEATURE)
|
|
report_type = HID_FEATURE_REPORT;
|
|
|
|
dev->battery_min = min;
|
|
dev->battery_max = max;
|
|
dev->battery_report_type = report_type;
|
|
dev->battery_report_id = field->report->id;
|
|
dev->battery_charge_status = POWER_SUPPLY_STATUS_DISCHARGING;
|
|
|
|
/*
|
|
* Stylus is normally not connected to the device and thus we
|
|
* can't query the device and get meaningful battery strength.
|
|
* We have to wait for the device to report it on its own.
|
|
*/
|
|
dev->battery_avoid_query = report_type == HID_INPUT_REPORT &&
|
|
field->physical == HID_DG_STYLUS;
|
|
|
|
if (quirks & HID_BATTERY_QUIRK_AVOID_QUERY)
|
|
dev->battery_avoid_query = true;
|
|
|
|
dev->battery = power_supply_register(&dev->dev, psy_desc, &psy_cfg);
|
|
if (IS_ERR(dev->battery)) {
|
|
error = PTR_ERR(dev->battery);
|
|
hid_warn(dev, "can't register power supply: %d\n", error);
|
|
goto err_free_name;
|
|
}
|
|
|
|
power_supply_powers(dev->battery, &dev->dev);
|
|
return 0;
|
|
|
|
err_free_name:
|
|
kfree(psy_desc->name);
|
|
err_free_mem:
|
|
kfree(psy_desc);
|
|
dev->battery = NULL;
|
|
return error;
|
|
}
|
|
|
|
static void hidinput_cleanup_battery(struct hid_device *dev)
|
|
{
|
|
const struct power_supply_desc *psy_desc;
|
|
|
|
if (!dev->battery)
|
|
return;
|
|
|
|
psy_desc = dev->battery->desc;
|
|
power_supply_unregister(dev->battery);
|
|
kfree(psy_desc->name);
|
|
kfree(psy_desc);
|
|
dev->battery = NULL;
|
|
}
|
|
|
|
static void hidinput_update_battery(struct hid_device *dev, int value)
|
|
{
|
|
int capacity;
|
|
|
|
if (!dev->battery)
|
|
return;
|
|
|
|
if (value == 0 || value < dev->battery_min || value > dev->battery_max)
|
|
return;
|
|
|
|
capacity = hidinput_scale_battery_capacity(dev, value);
|
|
|
|
if (dev->battery_status != HID_BATTERY_REPORTED ||
|
|
capacity != dev->battery_capacity ||
|
|
ktime_after(ktime_get_coarse(), dev->battery_ratelimit_time)) {
|
|
dev->battery_capacity = capacity;
|
|
dev->battery_status = HID_BATTERY_REPORTED;
|
|
dev->battery_ratelimit_time =
|
|
ktime_add_ms(ktime_get_coarse(), 30 * 1000);
|
|
power_supply_changed(dev->battery);
|
|
}
|
|
}
|
|
|
|
static bool hidinput_set_battery_charge_status(struct hid_device *dev,
|
|
unsigned int usage, int value)
|
|
{
|
|
switch (usage) {
|
|
case HID_BAT_CHARGING:
|
|
dev->battery_charge_status = value ?
|
|
POWER_SUPPLY_STATUS_CHARGING :
|
|
POWER_SUPPLY_STATUS_DISCHARGING;
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
#else /* !CONFIG_HID_BATTERY_STRENGTH */
|
|
static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type,
|
|
struct hid_field *field, bool is_percentage)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
static void hidinput_cleanup_battery(struct hid_device *dev)
|
|
{
|
|
}
|
|
|
|
static void hidinput_update_battery(struct hid_device *dev, int value)
|
|
{
|
|
}
|
|
|
|
static bool hidinput_set_battery_charge_status(struct hid_device *dev,
|
|
unsigned int usage, int value)
|
|
{
|
|
return false;
|
|
}
|
|
#endif /* CONFIG_HID_BATTERY_STRENGTH */
|
|
|
|
static bool hidinput_field_in_collection(struct hid_device *device, struct hid_field *field,
|
|
unsigned int type, unsigned int usage)
|
|
{
|
|
struct hid_collection *collection;
|
|
|
|
collection = &device->collection[field->usage->collection_index];
|
|
|
|
return collection->type == type && collection->usage == usage;
|
|
}
|
|
|
|
static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field,
|
|
struct hid_usage *usage, unsigned int usage_index)
|
|
{
|
|
struct input_dev *input = hidinput->input;
|
|
struct hid_device *device = input_get_drvdata(input);
|
|
const struct usage_priority *usage_priority = NULL;
|
|
int max = 0, code;
|
|
unsigned int i = 0;
|
|
unsigned long *bit = NULL;
|
|
|
|
field->hidinput = hidinput;
|
|
|
|
if (field->flags & HID_MAIN_ITEM_CONSTANT)
|
|
goto ignore;
|
|
|
|
/* Ignore if report count is out of bounds. */
|
|
if (field->report_count < 1)
|
|
goto ignore;
|
|
|
|
/* only LED usages are supported in output fields */
|
|
if (field->report_type == HID_OUTPUT_REPORT &&
|
|
(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
|
|
goto ignore;
|
|
}
|
|
|
|
/* assign a priority based on the static list declared here */
|
|
for (i = 0; i < ARRAY_SIZE(hidinput_usages_priorities); i++) {
|
|
if (usage->hid == hidinput_usages_priorities[i].usage) {
|
|
usage_priority = &hidinput_usages_priorities[i];
|
|
|
|
field->usages_priorities[usage_index] =
|
|
(ARRAY_SIZE(hidinput_usages_priorities) - i) << 8;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* For slotted devices, we need to also add the slot index
|
|
* in the priority.
|
|
*/
|
|
if (usage_priority && usage_priority->global)
|
|
field->usages_priorities[usage_index] |=
|
|
usage_priority->slot_overwrite;
|
|
else
|
|
field->usages_priorities[usage_index] |=
|
|
(0xff - field->slot_idx) << 16;
|
|
|
|
if (device->driver->input_mapping) {
|
|
int ret = device->driver->input_mapping(device, hidinput, field,
|
|
usage, &bit, &max);
|
|
if (ret > 0)
|
|
goto mapped;
|
|
if (ret < 0)
|
|
goto ignore;
|
|
}
|
|
|
|
switch (usage->hid & HID_USAGE_PAGE) {
|
|
case HID_UP_UNDEFINED:
|
|
goto ignore;
|
|
|
|
case HID_UP_KEYBOARD:
|
|
set_bit(EV_REP, input->evbit);
|
|
|
|
if ((usage->hid & HID_USAGE) < 256) {
|
|
if (!hid_keyboard[usage->hid & HID_USAGE]) goto ignore;
|
|
map_key_clear(hid_keyboard[usage->hid & HID_USAGE]);
|
|
} else
|
|
map_key(KEY_UNKNOWN);
|
|
|
|
break;
|
|
|
|
case HID_UP_BUTTON:
|
|
code = ((usage->hid - 1) & HID_USAGE);
|
|
|
|
switch (field->application) {
|
|
case HID_GD_MOUSE:
|
|
case HID_GD_POINTER: code += BTN_MOUSE; break;
|
|
case HID_GD_JOYSTICK:
|
|
if (code <= 0xf)
|
|
code += BTN_JOYSTICK;
|
|
else
|
|
code += BTN_TRIGGER_HAPPY - 0x10;
|
|
break;
|
|
case HID_GD_GAMEPAD:
|
|
if (code <= 0xf)
|
|
code += BTN_GAMEPAD;
|
|
else
|
|
code += BTN_TRIGGER_HAPPY - 0x10;
|
|
break;
|
|
case HID_CP_CONSUMER_CONTROL:
|
|
if (hidinput_field_in_collection(device, field,
|
|
HID_COLLECTION_NAMED_ARRAY,
|
|
HID_CP_PROGRAMMABLEBUTTONS)) {
|
|
if (code <= 0x1d)
|
|
code += KEY_MACRO1;
|
|
else
|
|
code += BTN_TRIGGER_HAPPY - 0x1e;
|
|
break;
|
|
}
|
|
fallthrough;
|
|
default:
|
|
switch (field->physical) {
|
|
case HID_GD_MOUSE:
|
|
case HID_GD_POINTER: code += BTN_MOUSE; break;
|
|
case HID_GD_JOYSTICK: code += BTN_JOYSTICK; break;
|
|
case HID_GD_GAMEPAD: code += BTN_GAMEPAD; break;
|
|
default: code += BTN_MISC;
|
|
}
|
|
}
|
|
|
|
map_key(code);
|
|
break;
|
|
|
|
case HID_UP_SIMULATION:
|
|
switch (usage->hid & 0xffff) {
|
|
case 0xba: map_abs(ABS_RUDDER); break;
|
|
case 0xbb: map_abs(ABS_THROTTLE); break;
|
|
case 0xc4: map_abs(ABS_GAS); break;
|
|
case 0xc5: map_abs(ABS_BRAKE); break;
|
|
case 0xc8: map_abs(ABS_WHEEL); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_GENDESK:
|
|
if ((usage->hid & 0xf0) == 0x80) { /* SystemControl */
|
|
switch (usage->hid & 0xf) {
|
|
case 0x1: map_key_clear(KEY_POWER); break;
|
|
case 0x2: map_key_clear(KEY_SLEEP); break;
|
|
case 0x3: map_key_clear(KEY_WAKEUP); break;
|
|
case 0x4: map_key_clear(KEY_CONTEXT_MENU); break;
|
|
case 0x5: map_key_clear(KEY_MENU); break;
|
|
case 0x6: map_key_clear(KEY_PROG1); break;
|
|
case 0x7: map_key_clear(KEY_HELP); break;
|
|
case 0x8: map_key_clear(KEY_EXIT); break;
|
|
case 0x9: map_key_clear(KEY_SELECT); break;
|
|
case 0xa: map_key_clear(KEY_RIGHT); break;
|
|
case 0xb: map_key_clear(KEY_LEFT); break;
|
|
case 0xc: map_key_clear(KEY_UP); break;
|
|
case 0xd: map_key_clear(KEY_DOWN); break;
|
|
case 0xe: map_key_clear(KEY_POWER2); break;
|
|
case 0xf: map_key_clear(KEY_RESTART); break;
|
|
default: goto unknown;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if ((usage->hid & 0xf0) == 0x90) { /* SystemControl*/
|
|
switch (usage->hid & 0xf) {
|
|
case 0xb: map_key_clear(KEY_DO_NOT_DISTURB); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if ((usage->hid & 0xf0) == 0xa0) { /* SystemControl */
|
|
switch (usage->hid & 0xf) {
|
|
case 0x9: map_key_clear(KEY_MICMUTE); break;
|
|
case 0xa: map_key_clear(KEY_ACCESSIBILITY); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
}
|
|
|
|
if ((usage->hid & 0xf0) == 0xb0) { /* SC - Display */
|
|
switch (usage->hid & 0xf) {
|
|
case 0x05: map_key_clear(KEY_SWITCHVIDEOMODE); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Some lazy vendors declare 255 usages for System Control,
|
|
* leading to the creation of ABS_X|Y axis and too many others.
|
|
* It wouldn't be a problem if joydev doesn't consider the
|
|
* device as a joystick then.
|
|
*/
|
|
if (field->application == HID_GD_SYSTEM_CONTROL)
|
|
goto ignore;
|
|
|
|
if ((usage->hid & 0xf0) == 0x90) { /* D-pad */
|
|
switch (usage->hid) {
|
|
case HID_GD_UP: usage->hat_dir = 1; break;
|
|
case HID_GD_DOWN: usage->hat_dir = 5; break;
|
|
case HID_GD_RIGHT: usage->hat_dir = 3; break;
|
|
case HID_GD_LEFT: usage->hat_dir = 7; break;
|
|
default: goto unknown;
|
|
}
|
|
if (field->dpad) {
|
|
map_abs(field->dpad);
|
|
goto ignore;
|
|
}
|
|
map_abs(ABS_HAT0X);
|
|
break;
|
|
}
|
|
|
|
switch (usage->hid) {
|
|
/* These usage IDs map directly to the usage codes. */
|
|
case HID_GD_X: case HID_GD_Y: case HID_GD_Z:
|
|
case HID_GD_RX: case HID_GD_RY: case HID_GD_RZ:
|
|
if (field->flags & HID_MAIN_ITEM_RELATIVE)
|
|
map_rel(usage->hid & 0xf);
|
|
else
|
|
map_abs_clear(usage->hid & 0xf);
|
|
break;
|
|
|
|
case HID_GD_WHEEL:
|
|
if (field->flags & HID_MAIN_ITEM_RELATIVE) {
|
|
set_bit(REL_WHEEL, input->relbit);
|
|
map_rel(REL_WHEEL_HI_RES);
|
|
} else {
|
|
map_abs(usage->hid & 0xf);
|
|
}
|
|
break;
|
|
case HID_GD_SLIDER: case HID_GD_DIAL:
|
|
if (field->flags & HID_MAIN_ITEM_RELATIVE)
|
|
map_rel(usage->hid & 0xf);
|
|
else
|
|
map_abs(usage->hid & 0xf);
|
|
break;
|
|
|
|
case HID_GD_HATSWITCH:
|
|
usage->hat_min = field->logical_minimum;
|
|
usage->hat_max = field->logical_maximum;
|
|
map_abs(ABS_HAT0X);
|
|
break;
|
|
|
|
case HID_GD_START: map_key_clear(BTN_START); break;
|
|
case HID_GD_SELECT: map_key_clear(BTN_SELECT); break;
|
|
|
|
case HID_GD_RFKILL_BTN:
|
|
/* MS wireless radio ctl extension, also check CA */
|
|
if (field->application == HID_GD_WIRELESS_RADIO_CTLS) {
|
|
map_key_clear(KEY_RFKILL);
|
|
/* We need to simulate the btn release */
|
|
field->flags |= HID_MAIN_ITEM_RELATIVE;
|
|
break;
|
|
}
|
|
goto unknown;
|
|
|
|
default: goto unknown;
|
|
}
|
|
|
|
break;
|
|
|
|
case HID_UP_LED:
|
|
switch (usage->hid & 0xffff) { /* HID-Value: */
|
|
case 0x01: map_led (LED_NUML); break; /* "Num Lock" */
|
|
case 0x02: map_led (LED_CAPSL); break; /* "Caps Lock" */
|
|
case 0x03: map_led (LED_SCROLLL); break; /* "Scroll Lock" */
|
|
case 0x04: map_led (LED_COMPOSE); break; /* "Compose" */
|
|
case 0x05: map_led (LED_KANA); break; /* "Kana" */
|
|
case 0x27: map_led (LED_SLEEP); break; /* "Stand-By" */
|
|
case 0x4c: map_led (LED_SUSPEND); break; /* "System Suspend" */
|
|
case 0x09: map_led (LED_MUTE); break; /* "Mute" */
|
|
case 0x4b: map_led (LED_MISC); break; /* "Generic Indicator" */
|
|
case 0x19: map_led (LED_MAIL); break; /* "Message Waiting" */
|
|
case 0x4d: map_led (LED_CHARGING); break; /* "External Power Connected" */
|
|
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_DIGITIZER:
|
|
if ((field->application & 0xff) == 0x01) /* Digitizer */
|
|
__set_bit(INPUT_PROP_POINTER, input->propbit);
|
|
else if ((field->application & 0xff) == 0x02) /* Pen */
|
|
__set_bit(INPUT_PROP_DIRECT, input->propbit);
|
|
|
|
switch (usage->hid & 0xff) {
|
|
case 0x00: /* Undefined */
|
|
goto ignore;
|
|
|
|
case 0x30: /* TipPressure */
|
|
if (!test_bit(BTN_TOUCH, input->keybit)) {
|
|
device->quirks |= HID_QUIRK_NOTOUCH;
|
|
set_bit(EV_KEY, input->evbit);
|
|
set_bit(BTN_TOUCH, input->keybit);
|
|
}
|
|
map_abs_clear(ABS_PRESSURE);
|
|
break;
|
|
|
|
case 0x32: /* InRange */
|
|
switch (field->physical) {
|
|
case HID_DG_PUCK:
|
|
map_key(BTN_TOOL_MOUSE);
|
|
break;
|
|
case HID_DG_FINGER:
|
|
map_key(BTN_TOOL_FINGER);
|
|
break;
|
|
default:
|
|
/*
|
|
* If the physical is not given,
|
|
* rely on the application.
|
|
*/
|
|
if (!field->physical) {
|
|
switch (field->application) {
|
|
case HID_DG_TOUCHSCREEN:
|
|
case HID_DG_TOUCHPAD:
|
|
map_key_clear(BTN_TOOL_FINGER);
|
|
break;
|
|
default:
|
|
map_key_clear(BTN_TOOL_PEN);
|
|
}
|
|
} else {
|
|
map_key(BTN_TOOL_PEN);
|
|
}
|
|
break;
|
|
}
|
|
break;
|
|
|
|
case 0x3b: /* Battery Strength */
|
|
hidinput_setup_battery(device, HID_INPUT_REPORT, field, false);
|
|
usage->type = EV_PWR;
|
|
return;
|
|
|
|
case 0x3c: /* Invert */
|
|
device->quirks &= ~HID_QUIRK_NOINVERT;
|
|
map_key_clear(BTN_TOOL_RUBBER);
|
|
break;
|
|
|
|
case 0x3d: /* X Tilt */
|
|
map_abs_clear(ABS_TILT_X);
|
|
break;
|
|
|
|
case 0x3e: /* Y Tilt */
|
|
map_abs_clear(ABS_TILT_Y);
|
|
break;
|
|
|
|
case 0x33: /* Touch */
|
|
case 0x42: /* TipSwitch */
|
|
case 0x43: /* TipSwitch2 */
|
|
device->quirks &= ~HID_QUIRK_NOTOUCH;
|
|
map_key_clear(BTN_TOUCH);
|
|
break;
|
|
|
|
case 0x44: /* BarrelSwitch */
|
|
map_key_clear(BTN_STYLUS);
|
|
break;
|
|
|
|
case 0x45: /* ERASER */
|
|
/*
|
|
* This event is reported when eraser tip touches the surface.
|
|
* Actual eraser (BTN_TOOL_RUBBER) is set and released either
|
|
* by Invert if tool reports proximity or by Eraser directly.
|
|
*/
|
|
if (!test_bit(BTN_TOOL_RUBBER, input->keybit)) {
|
|
device->quirks |= HID_QUIRK_NOINVERT;
|
|
set_bit(BTN_TOOL_RUBBER, input->keybit);
|
|
}
|
|
map_key_clear(BTN_TOUCH);
|
|
break;
|
|
|
|
case 0x46: /* TabletPick */
|
|
case 0x5a: /* SecondaryBarrelSwitch */
|
|
map_key_clear(BTN_STYLUS2);
|
|
break;
|
|
|
|
case 0x5b: /* TransducerSerialNumber */
|
|
case 0x6e: /* TransducerSerialNumber2 */
|
|
map_msc(MSC_SERIAL);
|
|
break;
|
|
|
|
default: goto unknown;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_TELEPHONY:
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x2f: map_key_clear(KEY_MICMUTE); break;
|
|
case 0xb0: map_key_clear(KEY_NUMERIC_0); break;
|
|
case 0xb1: map_key_clear(KEY_NUMERIC_1); break;
|
|
case 0xb2: map_key_clear(KEY_NUMERIC_2); break;
|
|
case 0xb3: map_key_clear(KEY_NUMERIC_3); break;
|
|
case 0xb4: map_key_clear(KEY_NUMERIC_4); break;
|
|
case 0xb5: map_key_clear(KEY_NUMERIC_5); break;
|
|
case 0xb6: map_key_clear(KEY_NUMERIC_6); break;
|
|
case 0xb7: map_key_clear(KEY_NUMERIC_7); break;
|
|
case 0xb8: map_key_clear(KEY_NUMERIC_8); break;
|
|
case 0xb9: map_key_clear(KEY_NUMERIC_9); break;
|
|
case 0xba: map_key_clear(KEY_NUMERIC_STAR); break;
|
|
case 0xbb: map_key_clear(KEY_NUMERIC_POUND); break;
|
|
case 0xbc: map_key_clear(KEY_NUMERIC_A); break;
|
|
case 0xbd: map_key_clear(KEY_NUMERIC_B); break;
|
|
case 0xbe: map_key_clear(KEY_NUMERIC_C); break;
|
|
case 0xbf: map_key_clear(KEY_NUMERIC_D); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_CONSUMER: /* USB HUT v1.12, pages 75-84 */
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x000: goto ignore;
|
|
case 0x030: map_key_clear(KEY_POWER); break;
|
|
case 0x031: map_key_clear(KEY_RESTART); break;
|
|
case 0x032: map_key_clear(KEY_SLEEP); break;
|
|
case 0x034: map_key_clear(KEY_SLEEP); break;
|
|
case 0x035: map_key_clear(KEY_KBDILLUMTOGGLE); break;
|
|
case 0x036: map_key_clear(BTN_MISC); break;
|
|
|
|
case 0x040: map_key_clear(KEY_MENU); break; /* Menu */
|
|
case 0x041: map_key_clear(KEY_SELECT); break; /* Menu Pick */
|
|
case 0x042: map_key_clear(KEY_UP); break; /* Menu Up */
|
|
case 0x043: map_key_clear(KEY_DOWN); break; /* Menu Down */
|
|
case 0x044: map_key_clear(KEY_LEFT); break; /* Menu Left */
|
|
case 0x045: map_key_clear(KEY_RIGHT); break; /* Menu Right */
|
|
case 0x046: map_key_clear(KEY_ESC); break; /* Menu Escape */
|
|
case 0x047: map_key_clear(KEY_KPPLUS); break; /* Menu Value Increase */
|
|
case 0x048: map_key_clear(KEY_KPMINUS); break; /* Menu Value Decrease */
|
|
|
|
case 0x060: map_key_clear(KEY_INFO); break; /* Data On Screen */
|
|
case 0x061: map_key_clear(KEY_SUBTITLE); break; /* Closed Caption */
|
|
case 0x063: map_key_clear(KEY_VCR); break; /* VCR/TV */
|
|
case 0x065: map_key_clear(KEY_CAMERA); break; /* Snapshot */
|
|
case 0x069: map_key_clear(KEY_RED); break;
|
|
case 0x06a: map_key_clear(KEY_GREEN); break;
|
|
case 0x06b: map_key_clear(KEY_BLUE); break;
|
|
case 0x06c: map_key_clear(KEY_YELLOW); break;
|
|
case 0x06d: map_key_clear(KEY_ASPECT_RATIO); break;
|
|
|
|
case 0x06f: map_key_clear(KEY_BRIGHTNESSUP); break;
|
|
case 0x070: map_key_clear(KEY_BRIGHTNESSDOWN); break;
|
|
case 0x072: map_key_clear(KEY_BRIGHTNESS_TOGGLE); break;
|
|
case 0x073: map_key_clear(KEY_BRIGHTNESS_MIN); break;
|
|
case 0x074: map_key_clear(KEY_BRIGHTNESS_MAX); break;
|
|
case 0x075: map_key_clear(KEY_BRIGHTNESS_AUTO); break;
|
|
|
|
case 0x076: map_key_clear(KEY_CAMERA_ACCESS_ENABLE); break;
|
|
case 0x077: map_key_clear(KEY_CAMERA_ACCESS_DISABLE); break;
|
|
case 0x078: map_key_clear(KEY_CAMERA_ACCESS_TOGGLE); break;
|
|
|
|
case 0x079: map_key_clear(KEY_KBDILLUMUP); break;
|
|
case 0x07a: map_key_clear(KEY_KBDILLUMDOWN); break;
|
|
case 0x07c: map_key_clear(KEY_KBDILLUMTOGGLE); break;
|
|
|
|
case 0x082: map_key_clear(KEY_VIDEO_NEXT); break;
|
|
case 0x083: map_key_clear(KEY_LAST); break;
|
|
case 0x084: map_key_clear(KEY_ENTER); break;
|
|
case 0x088: map_key_clear(KEY_PC); break;
|
|
case 0x089: map_key_clear(KEY_TV); break;
|
|
case 0x08a: map_key_clear(KEY_WWW); break;
|
|
case 0x08b: map_key_clear(KEY_DVD); break;
|
|
case 0x08c: map_key_clear(KEY_PHONE); break;
|
|
case 0x08d: map_key_clear(KEY_PROGRAM); break;
|
|
case 0x08e: map_key_clear(KEY_VIDEOPHONE); break;
|
|
case 0x08f: map_key_clear(KEY_GAMES); break;
|
|
case 0x090: map_key_clear(KEY_MEMO); break;
|
|
case 0x091: map_key_clear(KEY_CD); break;
|
|
case 0x092: map_key_clear(KEY_VCR); break;
|
|
case 0x093: map_key_clear(KEY_TUNER); break;
|
|
case 0x094: map_key_clear(KEY_EXIT); break;
|
|
case 0x095: map_key_clear(KEY_HELP); break;
|
|
case 0x096: map_key_clear(KEY_TAPE); break;
|
|
case 0x097: map_key_clear(KEY_TV2); break;
|
|
case 0x098: map_key_clear(KEY_SAT); break;
|
|
case 0x09a: map_key_clear(KEY_PVR); break;
|
|
|
|
case 0x09c: map_key_clear(KEY_CHANNELUP); break;
|
|
case 0x09d: map_key_clear(KEY_CHANNELDOWN); break;
|
|
case 0x0a0: map_key_clear(KEY_VCR2); break;
|
|
|
|
case 0x0b0: map_key_clear(KEY_PLAY); break;
|
|
case 0x0b1: map_key_clear(KEY_PAUSE); break;
|
|
case 0x0b2: map_key_clear(KEY_RECORD); break;
|
|
case 0x0b3: map_key_clear(KEY_FASTFORWARD); break;
|
|
case 0x0b4: map_key_clear(KEY_REWIND); break;
|
|
case 0x0b5: map_key_clear(KEY_NEXTSONG); break;
|
|
case 0x0b6: map_key_clear(KEY_PREVIOUSSONG); break;
|
|
case 0x0b7: map_key_clear(KEY_STOPCD); break;
|
|
case 0x0b8: map_key_clear(KEY_EJECTCD); break;
|
|
case 0x0bc: map_key_clear(KEY_MEDIA_REPEAT); break;
|
|
case 0x0b9: map_key_clear(KEY_SHUFFLE); break;
|
|
case 0x0bf: map_key_clear(KEY_SLOW); break;
|
|
|
|
case 0x0cd: map_key_clear(KEY_PLAYPAUSE); break;
|
|
case 0x0cf: map_key_clear(KEY_VOICECOMMAND); break;
|
|
|
|
case 0x0d8: map_key_clear(KEY_DICTATE); break;
|
|
case 0x0d9: map_key_clear(KEY_EMOJI_PICKER); break;
|
|
|
|
case 0x0e0: map_abs_clear(ABS_VOLUME); break;
|
|
case 0x0e2: map_key_clear(KEY_MUTE); break;
|
|
case 0x0e5: map_key_clear(KEY_BASSBOOST); break;
|
|
case 0x0e9: map_key_clear(KEY_VOLUMEUP); break;
|
|
case 0x0ea: map_key_clear(KEY_VOLUMEDOWN); break;
|
|
case 0x0f5: map_key_clear(KEY_SLOW); break;
|
|
|
|
case 0x181: map_key_clear(KEY_BUTTONCONFIG); break;
|
|
case 0x182: map_key_clear(KEY_BOOKMARKS); break;
|
|
case 0x183: map_key_clear(KEY_CONFIG); break;
|
|
case 0x184: map_key_clear(KEY_WORDPROCESSOR); break;
|
|
case 0x185: map_key_clear(KEY_EDITOR); break;
|
|
case 0x186: map_key_clear(KEY_SPREADSHEET); break;
|
|
case 0x187: map_key_clear(KEY_GRAPHICSEDITOR); break;
|
|
case 0x188: map_key_clear(KEY_PRESENTATION); break;
|
|
case 0x189: map_key_clear(KEY_DATABASE); break;
|
|
case 0x18a: map_key_clear(KEY_MAIL); break;
|
|
case 0x18b: map_key_clear(KEY_NEWS); break;
|
|
case 0x18c: map_key_clear(KEY_VOICEMAIL); break;
|
|
case 0x18d: map_key_clear(KEY_ADDRESSBOOK); break;
|
|
case 0x18e: map_key_clear(KEY_CALENDAR); break;
|
|
case 0x18f: map_key_clear(KEY_TASKMANAGER); break;
|
|
case 0x190: map_key_clear(KEY_JOURNAL); break;
|
|
case 0x191: map_key_clear(KEY_FINANCE); break;
|
|
case 0x192: map_key_clear(KEY_CALC); break;
|
|
case 0x193: map_key_clear(KEY_PLAYER); break;
|
|
case 0x194: map_key_clear(KEY_FILE); break;
|
|
case 0x196: map_key_clear(KEY_WWW); break;
|
|
case 0x199: map_key_clear(KEY_CHAT); break;
|
|
case 0x19c: map_key_clear(KEY_LOGOFF); break;
|
|
case 0x19e: map_key_clear(KEY_COFFEE); break;
|
|
case 0x19f: map_key_clear(KEY_CONTROLPANEL); break;
|
|
case 0x1a2: map_key_clear(KEY_APPSELECT); break;
|
|
case 0x1a3: map_key_clear(KEY_NEXT); break;
|
|
case 0x1a4: map_key_clear(KEY_PREVIOUS); break;
|
|
case 0x1a6: map_key_clear(KEY_HELP); break;
|
|
case 0x1a7: map_key_clear(KEY_DOCUMENTS); break;
|
|
case 0x1ab: map_key_clear(KEY_SPELLCHECK); break;
|
|
case 0x1ae: map_key_clear(KEY_KEYBOARD); break;
|
|
case 0x1b1: map_key_clear(KEY_SCREENSAVER); break;
|
|
case 0x1b4: map_key_clear(KEY_FILE); break;
|
|
case 0x1b6: map_key_clear(KEY_IMAGES); break;
|
|
case 0x1b7: map_key_clear(KEY_AUDIO); break;
|
|
case 0x1b8: map_key_clear(KEY_VIDEO); break;
|
|
case 0x1bc: map_key_clear(KEY_MESSENGER); break;
|
|
case 0x1bd: map_key_clear(KEY_INFO); break;
|
|
case 0x1cb: map_key_clear(KEY_ASSISTANT); break;
|
|
case 0x201: map_key_clear(KEY_NEW); break;
|
|
case 0x202: map_key_clear(KEY_OPEN); break;
|
|
case 0x203: map_key_clear(KEY_CLOSE); break;
|
|
case 0x204: map_key_clear(KEY_EXIT); break;
|
|
case 0x207: map_key_clear(KEY_SAVE); break;
|
|
case 0x208: map_key_clear(KEY_PRINT); break;
|
|
case 0x209: map_key_clear(KEY_PROPS); break;
|
|
case 0x21a: map_key_clear(KEY_UNDO); break;
|
|
case 0x21b: map_key_clear(KEY_COPY); break;
|
|
case 0x21c: map_key_clear(KEY_CUT); break;
|
|
case 0x21d: map_key_clear(KEY_PASTE); break;
|
|
case 0x21f: map_key_clear(KEY_FIND); break;
|
|
case 0x221: map_key_clear(KEY_SEARCH); break;
|
|
case 0x222: map_key_clear(KEY_GOTO); break;
|
|
case 0x223: map_key_clear(KEY_HOMEPAGE); break;
|
|
case 0x224: map_key_clear(KEY_BACK); break;
|
|
case 0x225: map_key_clear(KEY_FORWARD); break;
|
|
case 0x226: map_key_clear(KEY_STOP); break;
|
|
case 0x227: map_key_clear(KEY_REFRESH); break;
|
|
case 0x22a: map_key_clear(KEY_BOOKMARKS); break;
|
|
case 0x22d: map_key_clear(KEY_ZOOMIN); break;
|
|
case 0x22e: map_key_clear(KEY_ZOOMOUT); break;
|
|
case 0x22f: map_key_clear(KEY_ZOOMRESET); break;
|
|
case 0x232: map_key_clear(KEY_FULL_SCREEN); break;
|
|
case 0x233: map_key_clear(KEY_SCROLLUP); break;
|
|
case 0x234: map_key_clear(KEY_SCROLLDOWN); break;
|
|
case 0x238: /* AC Pan */
|
|
set_bit(REL_HWHEEL, input->relbit);
|
|
map_rel(REL_HWHEEL_HI_RES);
|
|
break;
|
|
case 0x23d: map_key_clear(KEY_EDIT); break;
|
|
case 0x25f: map_key_clear(KEY_CANCEL); break;
|
|
case 0x269: map_key_clear(KEY_INSERT); break;
|
|
case 0x26a: map_key_clear(KEY_DELETE); break;
|
|
case 0x279: map_key_clear(KEY_REDO); break;
|
|
|
|
case 0x289: map_key_clear(KEY_REPLY); break;
|
|
case 0x28b: map_key_clear(KEY_FORWARDMAIL); break;
|
|
case 0x28c: map_key_clear(KEY_SEND); break;
|
|
|
|
case 0x29d: map_key_clear(KEY_KBD_LAYOUT_NEXT); break;
|
|
|
|
case 0x2a2: map_key_clear(KEY_ALL_APPLICATIONS); break;
|
|
|
|
case 0x2c7: map_key_clear(KEY_KBDINPUTASSIST_PREV); break;
|
|
case 0x2c8: map_key_clear(KEY_KBDINPUTASSIST_NEXT); break;
|
|
case 0x2c9: map_key_clear(KEY_KBDINPUTASSIST_PREVGROUP); break;
|
|
case 0x2ca: map_key_clear(KEY_KBDINPUTASSIST_NEXTGROUP); break;
|
|
case 0x2cb: map_key_clear(KEY_KBDINPUTASSIST_ACCEPT); break;
|
|
case 0x2cc: map_key_clear(KEY_KBDINPUTASSIST_CANCEL); break;
|
|
|
|
case 0x29f: map_key_clear(KEY_SCALE); break;
|
|
|
|
default: map_key_clear(KEY_UNKNOWN);
|
|
}
|
|
break;
|
|
|
|
case HID_UP_GENDEVCTRLS:
|
|
switch (usage->hid) {
|
|
case HID_DC_BATTERYSTRENGTH:
|
|
hidinput_setup_battery(device, HID_INPUT_REPORT, field, false);
|
|
usage->type = EV_PWR;
|
|
return;
|
|
}
|
|
goto unknown;
|
|
|
|
case HID_UP_BATTERY:
|
|
switch (usage->hid) {
|
|
case HID_BAT_ABSOLUTESTATEOFCHARGE:
|
|
hidinput_setup_battery(device, HID_INPUT_REPORT, field, true);
|
|
usage->type = EV_PWR;
|
|
return;
|
|
case HID_BAT_CHARGING:
|
|
usage->type = EV_PWR;
|
|
return;
|
|
}
|
|
goto unknown;
|
|
case HID_UP_CAMERA:
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x020:
|
|
map_key_clear(KEY_CAMERA_FOCUS); break;
|
|
case 0x021:
|
|
map_key_clear(KEY_CAMERA); break;
|
|
default:
|
|
goto ignore;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_HPVENDOR: /* Reported on a Dutch layout HP5308 */
|
|
set_bit(EV_REP, input->evbit);
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x021: map_key_clear(KEY_PRINT); break;
|
|
case 0x070: map_key_clear(KEY_HP); break;
|
|
case 0x071: map_key_clear(KEY_CAMERA); break;
|
|
case 0x072: map_key_clear(KEY_SOUND); break;
|
|
case 0x073: map_key_clear(KEY_QUESTION); break;
|
|
case 0x080: map_key_clear(KEY_EMAIL); break;
|
|
case 0x081: map_key_clear(KEY_CHAT); break;
|
|
case 0x082: map_key_clear(KEY_SEARCH); break;
|
|
case 0x083: map_key_clear(KEY_CONNECT); break;
|
|
case 0x084: map_key_clear(KEY_FINANCE); break;
|
|
case 0x085: map_key_clear(KEY_SPORT); break;
|
|
case 0x086: map_key_clear(KEY_SHOP); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_HPVENDOR2:
|
|
set_bit(EV_REP, input->evbit);
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0x001: map_key_clear(KEY_MICMUTE); break;
|
|
case 0x003: map_key_clear(KEY_BRIGHTNESSDOWN); break;
|
|
case 0x004: map_key_clear(KEY_BRIGHTNESSUP); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
|
|
case HID_UP_MSVENDOR:
|
|
goto ignore;
|
|
|
|
case HID_UP_CUSTOM: /* Reported on Logitech and Apple USB keyboards */
|
|
set_bit(EV_REP, input->evbit);
|
|
goto ignore;
|
|
|
|
case HID_UP_LOGIVENDOR:
|
|
/* intentional fallback */
|
|
case HID_UP_LOGIVENDOR2:
|
|
/* intentional fallback */
|
|
case HID_UP_LOGIVENDOR3:
|
|
goto ignore;
|
|
|
|
case HID_UP_PID:
|
|
switch (usage->hid & HID_USAGE) {
|
|
case 0xa4: map_key_clear(BTN_DEAD); break;
|
|
default: goto ignore;
|
|
}
|
|
break;
|
|
|
|
default:
|
|
unknown:
|
|
if (field->report_size == 1) {
|
|
if (field->report->type == HID_OUTPUT_REPORT) {
|
|
map_led(LED_MISC);
|
|
break;
|
|
}
|
|
map_key(BTN_MISC);
|
|
break;
|
|
}
|
|
if (field->flags & HID_MAIN_ITEM_RELATIVE) {
|
|
map_rel(REL_MISC);
|
|
break;
|
|
}
|
|
map_abs(ABS_MISC);
|
|
break;
|
|
}
|
|
|
|
mapped:
|
|
/* Mapping failed, bail out */
|
|
if (!bit)
|
|
return;
|
|
|
|
if (device->driver->input_mapped &&
|
|
device->driver->input_mapped(device, hidinput, field, usage,
|
|
&bit, &max) < 0) {
|
|
/*
|
|
* The driver indicated that no further generic handling
|
|
* of the usage is desired.
|
|
*/
|
|
return;
|
|
}
|
|
|
|
set_bit(usage->type, input->evbit);
|
|
|
|
/*
|
|
* This part is *really* controversial:
|
|
* - HID aims at being generic so we should do our best to export
|
|
* all incoming events
|
|
* - HID describes what events are, so there is no reason for ABS_X
|
|
* to be mapped to ABS_Y
|
|
* - HID is using *_MISC+N as a default value, but nothing prevents
|
|
* *_MISC+N to overwrite a legitimate even, which confuses userspace
|
|
* (for instance ABS_MISC + 7 is ABS_MT_SLOT, which has a different
|
|
* processing)
|
|
*
|
|
* If devices still want to use this (at their own risk), they will
|
|
* have to use the quirk HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE, but
|
|
* the default should be a reliable mapping.
|
|
*/
|
|
while (usage->code <= max && test_and_set_bit(usage->code, bit)) {
|
|
if (device->quirks & HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE) {
|
|
usage->code = find_next_zero_bit(bit,
|
|
max + 1,
|
|
usage->code);
|
|
} else {
|
|
device->status |= HID_STAT_DUP_DETECTED;
|
|
goto ignore;
|
|
}
|
|
}
|
|
|
|
if (usage->code > max)
|
|
goto ignore;
|
|
|
|
if (usage->type == EV_ABS) {
|
|
|
|
int a = field->logical_minimum;
|
|
int b = field->logical_maximum;
|
|
|
|
if ((device->quirks & HID_QUIRK_BADPAD) && (usage->code == ABS_X || usage->code == ABS_Y)) {
|
|
a = field->logical_minimum = 0;
|
|
b = field->logical_maximum = 255;
|
|
}
|
|
|
|
if (field->application == HID_GD_GAMEPAD || field->application == HID_GD_JOYSTICK)
|
|
input_set_abs_params(input, usage->code, a, b, (b - a) >> 8, (b - a) >> 4);
|
|
else input_set_abs_params(input, usage->code, a, b, 0, 0);
|
|
|
|
input_abs_set_res(input, usage->code,
|
|
hidinput_calc_abs_res(field, usage->code));
|
|
|
|
/* use a larger default input buffer for MT devices */
|
|
if (usage->code == ABS_MT_POSITION_X && input->hint_events_per_packet == 0)
|
|
input_set_events_per_packet(input, 60);
|
|
}
|
|
|
|
if (usage->type == EV_ABS &&
|
|
(usage->hat_min < usage->hat_max || usage->hat_dir)) {
|
|
int i;
|
|
for (i = usage->code; i < usage->code + 2 && i <= max; i++) {
|
|
input_set_abs_params(input, i, -1, 1, 0, 0);
|
|
set_bit(i, input->absbit);
|
|
}
|
|
if (usage->hat_dir && !field->dpad)
|
|
field->dpad = usage->code;
|
|
}
|
|
|
|
/* for those devices which produce Consumer volume usage as relative,
|
|
* we emulate pressing volumeup/volumedown appropriate number of times
|
|
* in hidinput_hid_event()
|
|
*/
|
|
if ((usage->type == EV_ABS) && (field->flags & HID_MAIN_ITEM_RELATIVE) &&
|
|
(usage->code == ABS_VOLUME)) {
|
|
set_bit(KEY_VOLUMEUP, input->keybit);
|
|
set_bit(KEY_VOLUMEDOWN, input->keybit);
|
|
}
|
|
|
|
if (usage->type == EV_KEY) {
|
|
set_bit(EV_MSC, input->evbit);
|
|
set_bit(MSC_SCAN, input->mscbit);
|
|
}
|
|
|
|
return;
|
|
|
|
ignore:
|
|
usage->type = 0;
|
|
usage->code = 0;
|
|
}
|
|
|
|
static void hidinput_handle_scroll(struct hid_usage *usage,
|
|
struct input_dev *input,
|
|
__s32 value)
|
|
{
|
|
int code;
|
|
int hi_res, lo_res;
|
|
|
|
if (value == 0)
|
|
return;
|
|
|
|
if (usage->code == REL_WHEEL_HI_RES)
|
|
code = REL_WHEEL;
|
|
else
|
|
code = REL_HWHEEL;
|
|
|
|
/*
|
|
* Windows reports one wheel click as value 120. Where a high-res
|
|
* scroll wheel is present, a fraction of 120 is reported instead.
|
|
* Our REL_WHEEL_HI_RES axis does the same because all HW must
|
|
* adhere to the 120 expectation.
|
|
*/
|
|
hi_res = value * 120/usage->resolution_multiplier;
|
|
|
|
usage->wheel_accumulated += hi_res;
|
|
lo_res = usage->wheel_accumulated/120;
|
|
if (lo_res)
|
|
usage->wheel_accumulated -= lo_res * 120;
|
|
|
|
input_event(input, EV_REL, code, lo_res);
|
|
input_event(input, EV_REL, usage->code, hi_res);
|
|
}
|
|
|
|
static void hid_report_release_tool(struct hid_report *report, struct input_dev *input,
|
|
unsigned int tool)
|
|
{
|
|
/* if the given tool is not currently reported, ignore */
|
|
if (!test_bit(tool, input->key))
|
|
return;
|
|
|
|
/*
|
|
* if the given tool was previously set, release it,
|
|
* release any TOUCH and send an EV_SYN
|
|
*/
|
|
input_event(input, EV_KEY, BTN_TOUCH, 0);
|
|
input_event(input, EV_KEY, tool, 0);
|
|
input_event(input, EV_SYN, SYN_REPORT, 0);
|
|
|
|
report->tool = 0;
|
|
}
|
|
|
|
static void hid_report_set_tool(struct hid_report *report, struct input_dev *input,
|
|
unsigned int new_tool)
|
|
{
|
|
if (report->tool != new_tool)
|
|
hid_report_release_tool(report, input, report->tool);
|
|
|
|
input_event(input, EV_KEY, new_tool, 1);
|
|
report->tool = new_tool;
|
|
}
|
|
|
|
void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value)
|
|
{
|
|
struct input_dev *input;
|
|
struct hid_report *report = field->report;
|
|
unsigned *quirks = &hid->quirks;
|
|
|
|
if (!usage->type)
|
|
return;
|
|
|
|
if (usage->type == EV_PWR) {
|
|
bool handled = hidinput_set_battery_charge_status(hid, usage->hid, value);
|
|
|
|
if (!handled)
|
|
hidinput_update_battery(hid, value);
|
|
|
|
return;
|
|
}
|
|
|
|
if (!field->hidinput)
|
|
return;
|
|
|
|
input = field->hidinput->input;
|
|
|
|
if (usage->hat_min < usage->hat_max || usage->hat_dir) {
|
|
int hat_dir = usage->hat_dir;
|
|
if (!hat_dir)
|
|
hat_dir = (value - usage->hat_min) * 8 / (usage->hat_max - usage->hat_min + 1) + 1;
|
|
if (hat_dir < 0 || hat_dir > 8) hat_dir = 0;
|
|
input_event(input, usage->type, usage->code , hid_hat_to_axis[hat_dir].x);
|
|
input_event(input, usage->type, usage->code + 1, hid_hat_to_axis[hat_dir].y);
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* Ignore out-of-range values as per HID specification,
|
|
* section 5.10 and 6.2.25, when NULL state bit is present.
|
|
* When it's not, clamp the value to match Microsoft's input
|
|
* driver as mentioned in "Required HID usages for digitizers":
|
|
* https://msdn.microsoft.com/en-us/library/windows/hardware/dn672278(v=vs.85).asp
|
|
*
|
|
* The logical_minimum < logical_maximum check is done so that we
|
|
* don't unintentionally discard values sent by devices which
|
|
* don't specify logical min and max.
|
|
*/
|
|
if ((field->flags & HID_MAIN_ITEM_VARIABLE) &&
|
|
field->logical_minimum < field->logical_maximum) {
|
|
if (field->flags & HID_MAIN_ITEM_NULL_STATE &&
|
|
(value < field->logical_minimum ||
|
|
value > field->logical_maximum)) {
|
|
dbg_hid("Ignoring out-of-range value %x\n", value);
|
|
return;
|
|
}
|
|
value = clamp(value,
|
|
field->logical_minimum,
|
|
field->logical_maximum);
|
|
}
|
|
|
|
switch (usage->hid) {
|
|
case HID_DG_ERASER:
|
|
report->tool_active |= !!value;
|
|
|
|
/*
|
|
* if eraser is set, we must enforce BTN_TOOL_RUBBER
|
|
* to accommodate for devices not following the spec.
|
|
*/
|
|
if (value)
|
|
hid_report_set_tool(report, input, BTN_TOOL_RUBBER);
|
|
else if (report->tool != BTN_TOOL_RUBBER)
|
|
/* value is off, tool is not rubber, ignore */
|
|
return;
|
|
else if (*quirks & HID_QUIRK_NOINVERT &&
|
|
!test_bit(BTN_TOUCH, input->key)) {
|
|
/*
|
|
* There is no invert to release the tool, let hid_input
|
|
* send BTN_TOUCH with scancode and release the tool after.
|
|
*/
|
|
hid_report_release_tool(report, input, BTN_TOOL_RUBBER);
|
|
return;
|
|
}
|
|
|
|
/* let hid-input set BTN_TOUCH */
|
|
break;
|
|
|
|
case HID_DG_INVERT:
|
|
report->tool_active |= !!value;
|
|
|
|
/*
|
|
* If invert is set, we store BTN_TOOL_RUBBER.
|
|
*/
|
|
if (value)
|
|
hid_report_set_tool(report, input, BTN_TOOL_RUBBER);
|
|
else if (!report->tool_active)
|
|
/* tool_active not set means Invert and Eraser are not set */
|
|
hid_report_release_tool(report, input, BTN_TOOL_RUBBER);
|
|
|
|
/* no further processing */
|
|
return;
|
|
|
|
case HID_DG_INRANGE:
|
|
report->tool_active |= !!value;
|
|
|
|
if (report->tool_active) {
|
|
/*
|
|
* if tool is not set but is marked as active,
|
|
* assume ours
|
|
*/
|
|
if (!report->tool)
|
|
report->tool = usage->code;
|
|
|
|
/* drivers may have changed the value behind our back, resend it */
|
|
hid_report_set_tool(report, input, report->tool);
|
|
} else {
|
|
hid_report_release_tool(report, input, usage->code);
|
|
}
|
|
|
|
/* reset tool_active for the next event */
|
|
report->tool_active = false;
|
|
|
|
/* no further processing */
|
|
return;
|
|
|
|
case HID_DG_TIPSWITCH:
|
|
report->tool_active |= !!value;
|
|
|
|
/* if tool is set to RUBBER we should ignore the current value */
|
|
if (report->tool == BTN_TOOL_RUBBER)
|
|
return;
|
|
|
|
break;
|
|
|
|
case HID_DG_TIPPRESSURE:
|
|
if (*quirks & HID_QUIRK_NOTOUCH) {
|
|
int a = field->logical_minimum;
|
|
int b = field->logical_maximum;
|
|
|
|
if (value > a + ((b - a) >> 3)) {
|
|
input_event(input, EV_KEY, BTN_TOUCH, 1);
|
|
report->tool_active = true;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case HID_UP_PID | 0x83UL: /* Simultaneous Effects Max */
|
|
dbg_hid("Maximum Effects - %d\n",value);
|
|
return;
|
|
|
|
case HID_UP_PID | 0x7fUL:
|
|
dbg_hid("PID Pool Report\n");
|
|
return;
|
|
}
|
|
|
|
switch (usage->type) {
|
|
case EV_KEY:
|
|
if (usage->code == 0) /* Key 0 is "unassigned", not KEY_UNKNOWN */
|
|
return;
|
|
break;
|
|
|
|
case EV_REL:
|
|
if (usage->code == REL_WHEEL_HI_RES ||
|
|
usage->code == REL_HWHEEL_HI_RES) {
|
|
hidinput_handle_scroll(usage, input, value);
|
|
return;
|
|
}
|
|
break;
|
|
|
|
case EV_ABS:
|
|
if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
|
|
usage->code == ABS_VOLUME) {
|
|
int count = abs(value);
|
|
int direction = value > 0 ? KEY_VOLUMEUP : KEY_VOLUMEDOWN;
|
|
int i;
|
|
|
|
for (i = 0; i < count; i++) {
|
|
input_event(input, EV_KEY, direction, 1);
|
|
input_sync(input);
|
|
input_event(input, EV_KEY, direction, 0);
|
|
input_sync(input);
|
|
}
|
|
return;
|
|
|
|
} else if (((*quirks & HID_QUIRK_X_INVERT) && usage->code == ABS_X) ||
|
|
((*quirks & HID_QUIRK_Y_INVERT) && usage->code == ABS_Y))
|
|
value = field->logical_maximum - value;
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Ignore reports for absolute data if the data didn't change. This is
|
|
* not only an optimization but also fixes 'dead' key reports. Some
|
|
* RollOver implementations for localized keys (like BACKSLASH/PIPE; HID
|
|
* 0x31 and 0x32) report multiple keys, even though a localized keyboard
|
|
* can only have one of them physically available. The 'dead' keys
|
|
* report constant 0. As all map to the same keycode, they'd confuse
|
|
* the input layer. If we filter the 'dead' keys on the HID level, we
|
|
* skip the keycode translation and only forward real events.
|
|
*/
|
|
if (!(field->flags & (HID_MAIN_ITEM_RELATIVE |
|
|
HID_MAIN_ITEM_BUFFERED_BYTE)) &&
|
|
(field->flags & HID_MAIN_ITEM_VARIABLE) &&
|
|
usage->usage_index < field->maxusage &&
|
|
value == field->value[usage->usage_index])
|
|
return;
|
|
|
|
/* report the usage code as scancode if the key status has changed */
|
|
if (usage->type == EV_KEY &&
|
|
(!test_bit(usage->code, input->key)) == value)
|
|
input_event(input, EV_MSC, MSC_SCAN, usage->hid);
|
|
|
|
input_event(input, usage->type, usage->code, value);
|
|
|
|
if ((field->flags & HID_MAIN_ITEM_RELATIVE) &&
|
|
usage->type == EV_KEY && value) {
|
|
input_sync(input);
|
|
input_event(input, usage->type, usage->code, 0);
|
|
}
|
|
}
|
|
|
|
void hidinput_report_event(struct hid_device *hid, struct hid_report *report)
|
|
{
|
|
struct hid_input *hidinput;
|
|
|
|
if (hid->quirks & HID_QUIRK_NO_INPUT_SYNC)
|
|
return;
|
|
|
|
list_for_each_entry(hidinput, &hid->inputs, list)
|
|
input_sync(hidinput->input);
|
|
}
|
|
EXPORT_SYMBOL_GPL(hidinput_report_event);
|
|
|
|
static int hidinput_find_field(struct hid_device *hid, unsigned int type,
|
|
unsigned int code, struct hid_field **field)
|
|
{
|
|
struct hid_report *report;
|
|
int i, j;
|
|
|
|
list_for_each_entry(report, &hid->report_enum[HID_OUTPUT_REPORT].report_list, list) {
|
|
for (i = 0; i < report->maxfield; i++) {
|
|
*field = report->field[i];
|
|
for (j = 0; j < (*field)->maxusage; j++)
|
|
if ((*field)->usage[j].type == type && (*field)->usage[j].code == code)
|
|
return j;
|
|
}
|
|
}
|
|
return -1;
|
|
}
|
|
|
|
struct hid_field *hidinput_get_led_field(struct hid_device *hid)
|
|
{
|
|
struct hid_report *report;
|
|
struct hid_field *field;
|
|
int i, j;
|
|
|
|
list_for_each_entry(report,
|
|
&hid->report_enum[HID_OUTPUT_REPORT].report_list,
|
|
list) {
|
|
for (i = 0; i < report->maxfield; i++) {
|
|
field = report->field[i];
|
|
for (j = 0; j < field->maxusage; j++)
|
|
if (field->usage[j].type == EV_LED)
|
|
return field;
|
|
}
|
|
}
|
|
return NULL;
|
|
}
|
|
EXPORT_SYMBOL_GPL(hidinput_get_led_field);
|
|
|
|
unsigned int hidinput_count_leds(struct hid_device *hid)
|
|
{
|
|
struct hid_report *report;
|
|
struct hid_field *field;
|
|
int i, j;
|
|
unsigned int count = 0;
|
|
|
|
list_for_each_entry(report,
|
|
&hid->report_enum[HID_OUTPUT_REPORT].report_list,
|
|
list) {
|
|
for (i = 0; i < report->maxfield; i++) {
|
|
field = report->field[i];
|
|
for (j = 0; j < field->maxusage; j++)
|
|
if (field->usage[j].type == EV_LED &&
|
|
field->value[j])
|
|
count += 1;
|
|
}
|
|
}
|
|
return count;
|
|
}
|
|
EXPORT_SYMBOL_GPL(hidinput_count_leds);
|
|
|
|
static void hidinput_led_worker(struct work_struct *work)
|
|
{
|
|
struct hid_device *hid = container_of(work, struct hid_device,
|
|
led_work);
|
|
struct hid_field *field;
|
|
struct hid_report *report;
|
|
int ret;
|
|
u32 len;
|
|
__u8 *buf;
|
|
|
|
field = hidinput_get_led_field(hid);
|
|
if (!field)
|
|
return;
|
|
|
|
/*
|
|
* field->report is accessed unlocked regarding HID core. So there might
|
|
* be another incoming SET-LED request from user-space, which changes
|
|
* the LED state while we assemble our outgoing buffer. However, this
|
|
* doesn't matter as hid_output_report() correctly converts it into a
|
|
* boolean value no matter what information is currently set on the LED
|
|
* field (even garbage). So the remote device will always get a valid
|
|
* request.
|
|
* And in case we send a wrong value, a next led worker is spawned
|
|
* for every SET-LED request so the following worker will send the
|
|
* correct value, guaranteed!
|
|
*/
|
|
|
|
report = field->report;
|
|
|
|
/* use custom SET_REPORT request if possible (asynchronous) */
|
|
if (hid->ll_driver->request)
|
|
return hid->ll_driver->request(hid, report, HID_REQ_SET_REPORT);
|
|
|
|
/* fall back to generic raw-output-report */
|
|
len = hid_report_len(report);
|
|
buf = hid_alloc_report_buf(report, GFP_KERNEL);
|
|
if (!buf)
|
|
return;
|
|
|
|
hid_output_report(report, buf);
|
|
/* synchronous output report */
|
|
ret = hid_hw_output_report(hid, buf, len);
|
|
if (ret == -ENOSYS)
|
|
hid_hw_raw_request(hid, report->id, buf, len, HID_OUTPUT_REPORT,
|
|
HID_REQ_SET_REPORT);
|
|
kfree(buf);
|
|
}
|
|
|
|
static int hidinput_input_event(struct input_dev *dev, unsigned int type,
|
|
unsigned int code, int value)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
struct hid_field *field;
|
|
int offset;
|
|
|
|
if (type == EV_FF)
|
|
return input_ff_event(dev, type, code, value);
|
|
|
|
if (type != EV_LED)
|
|
return -1;
|
|
|
|
if ((offset = hidinput_find_field(hid, type, code, &field)) == -1) {
|
|
hid_warn(dev, "event field not found\n");
|
|
return -1;
|
|
}
|
|
|
|
hid_set_field(field, offset, value);
|
|
|
|
schedule_work(&hid->led_work);
|
|
return 0;
|
|
}
|
|
|
|
static int hidinput_open(struct input_dev *dev)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
|
|
return hid_hw_open(hid);
|
|
}
|
|
|
|
static void hidinput_close(struct input_dev *dev)
|
|
{
|
|
struct hid_device *hid = input_get_drvdata(dev);
|
|
|
|
hid_hw_close(hid);
|
|
}
|
|
|
|
static bool __hidinput_change_resolution_multipliers(struct hid_device *hid,
|
|
struct hid_report *report, bool use_logical_max)
|
|
{
|
|
struct hid_usage *usage;
|
|
bool update_needed = false;
|
|
bool get_report_completed = false;
|
|
int i, j;
|
|
|
|
if (report->maxfield == 0)
|
|
return false;
|
|
|
|
for (i = 0; i < report->maxfield; i++) {
|
|
__s32 value = use_logical_max ?
|
|
report->field[i]->logical_maximum :
|
|
report->field[i]->logical_minimum;
|
|
|
|
/* There is no good reason for a Resolution
|
|
* Multiplier to have a count other than 1.
|
|
* Ignore that case.
|
|
*/
|
|
if (report->field[i]->report_count != 1)
|
|
continue;
|
|
|
|
for (j = 0; j < report->field[i]->maxusage; j++) {
|
|
usage = &report->field[i]->usage[j];
|
|
|
|
if (usage->hid != HID_GD_RESOLUTION_MULTIPLIER)
|
|
continue;
|
|
|
|
/*
|
|
* If we have more than one feature within this
|
|
* report we need to fill in the bits from the
|
|
* others before we can overwrite the ones for the
|
|
* Resolution Multiplier.
|
|
*
|
|
* But if we're not allowed to read from the device,
|
|
* we just bail. Such a device should not exist
|
|
* anyway.
|
|
*/
|
|
if (!get_report_completed && report->maxfield > 1) {
|
|
if (hid->quirks & HID_QUIRK_NO_INIT_REPORTS)
|
|
return update_needed;
|
|
|
|
hid_hw_request(hid, report, HID_REQ_GET_REPORT);
|
|
hid_hw_wait(hid);
|
|
get_report_completed = true;
|
|
}
|
|
|
|
report->field[i]->value[j] = value;
|
|
update_needed = true;
|
|
}
|
|
}
|
|
|
|
return update_needed;
|
|
}
|
|
|
|
static void hidinput_change_resolution_multipliers(struct hid_device *hid)
|
|
{
|
|
struct hid_report_enum *rep_enum;
|
|
struct hid_report *rep;
|
|
int ret;
|
|
|
|
rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
|
|
list_for_each_entry(rep, &rep_enum->report_list, list) {
|
|
bool update_needed = __hidinput_change_resolution_multipliers(hid,
|
|
rep, true);
|
|
|
|
if (update_needed) {
|
|
ret = __hid_request(hid, rep, HID_REQ_SET_REPORT);
|
|
if (ret) {
|
|
__hidinput_change_resolution_multipliers(hid,
|
|
rep, false);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* refresh our structs */
|
|
hid_setup_resolution_multiplier(hid);
|
|
}
|
|
|
|
static void report_features(struct hid_device *hid)
|
|
{
|
|
struct hid_driver *drv = hid->driver;
|
|
struct hid_report_enum *rep_enum;
|
|
struct hid_report *rep;
|
|
struct hid_usage *usage;
|
|
int i, j;
|
|
|
|
rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
|
|
list_for_each_entry(rep, &rep_enum->report_list, list)
|
|
for (i = 0; i < rep->maxfield; i++) {
|
|
/* Ignore if report count is out of bounds. */
|
|
if (rep->field[i]->report_count < 1)
|
|
continue;
|
|
|
|
for (j = 0; j < rep->field[i]->maxusage; j++) {
|
|
usage = &rep->field[i]->usage[j];
|
|
|
|
/* Verify if Battery Strength feature is available */
|
|
if (usage->hid == HID_DC_BATTERYSTRENGTH)
|
|
hidinput_setup_battery(hid, HID_FEATURE_REPORT,
|
|
rep->field[i], false);
|
|
|
|
if (drv->feature_mapping)
|
|
drv->feature_mapping(hid, rep->field[i], usage);
|
|
}
|
|
}
|
|
}
|
|
|
|
static struct hid_input *hidinput_allocate(struct hid_device *hid,
|
|
unsigned int application)
|
|
{
|
|
struct hid_input *hidinput = kzalloc(sizeof(*hidinput), GFP_KERNEL);
|
|
struct input_dev *input_dev = input_allocate_device();
|
|
const char *suffix = NULL;
|
|
size_t suffix_len, name_len;
|
|
|
|
if (!hidinput || !input_dev)
|
|
goto fail;
|
|
|
|
if ((hid->quirks & HID_QUIRK_INPUT_PER_APP) &&
|
|
hid->maxapplication > 1) {
|
|
switch (application) {
|
|
case HID_GD_KEYBOARD:
|
|
suffix = "Keyboard";
|
|
break;
|
|
case HID_GD_KEYPAD:
|
|
suffix = "Keypad";
|
|
break;
|
|
case HID_GD_MOUSE:
|
|
suffix = "Mouse";
|
|
break;
|
|
case HID_DG_PEN:
|
|
/*
|
|
* yes, there is an issue here:
|
|
* DG_PEN -> "Stylus"
|
|
* DG_STYLUS -> "Pen"
|
|
* But changing this now means users with config snippets
|
|
* will have to change it and the test suite will not be happy.
|
|
*/
|
|
suffix = "Stylus";
|
|
break;
|
|
case HID_DG_STYLUS:
|
|
suffix = "Pen";
|
|
break;
|
|
case HID_DG_TOUCHSCREEN:
|
|
suffix = "Touchscreen";
|
|
break;
|
|
case HID_DG_TOUCHPAD:
|
|
suffix = "Touchpad";
|
|
break;
|
|
case HID_GD_SYSTEM_CONTROL:
|
|
suffix = "System Control";
|
|
break;
|
|
case HID_CP_CONSUMER_CONTROL:
|
|
suffix = "Consumer Control";
|
|
break;
|
|
case HID_GD_WIRELESS_RADIO_CTLS:
|
|
suffix = "Wireless Radio Control";
|
|
break;
|
|
case HID_GD_SYSTEM_MULTIAXIS:
|
|
suffix = "System Multi Axis";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (suffix) {
|
|
name_len = strlen(hid->name);
|
|
suffix_len = strlen(suffix);
|
|
if ((name_len < suffix_len) ||
|
|
strcmp(hid->name + name_len - suffix_len, suffix)) {
|
|
hidinput->name = kasprintf(GFP_KERNEL, "%s %s",
|
|
hid->name, suffix);
|
|
if (!hidinput->name)
|
|
goto fail;
|
|
}
|
|
}
|
|
|
|
input_set_drvdata(input_dev, hid);
|
|
input_dev->event = hidinput_input_event;
|
|
input_dev->open = hidinput_open;
|
|
input_dev->close = hidinput_close;
|
|
input_dev->setkeycode = hidinput_setkeycode;
|
|
input_dev->getkeycode = hidinput_getkeycode;
|
|
|
|
input_dev->name = hidinput->name ? hidinput->name : hid->name;
|
|
input_dev->phys = hid->phys;
|
|
input_dev->uniq = hid->uniq;
|
|
input_dev->id.bustype = hid->bus;
|
|
input_dev->id.vendor = hid->vendor;
|
|
input_dev->id.product = hid->product;
|
|
input_dev->id.version = hid->version;
|
|
input_dev->dev.parent = &hid->dev;
|
|
|
|
hidinput->input = input_dev;
|
|
hidinput->application = application;
|
|
list_add_tail(&hidinput->list, &hid->inputs);
|
|
|
|
INIT_LIST_HEAD(&hidinput->reports);
|
|
|
|
return hidinput;
|
|
|
|
fail:
|
|
kfree(hidinput);
|
|
input_free_device(input_dev);
|
|
hid_err(hid, "Out of memory during hid input probe\n");
|
|
return NULL;
|
|
}
|
|
|
|
static bool hidinput_has_been_populated(struct hid_input *hidinput)
|
|
{
|
|
int i;
|
|
unsigned long r = 0;
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(EV_CNT); i++)
|
|
r |= hidinput->input->evbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(KEY_CNT); i++)
|
|
r |= hidinput->input->keybit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(REL_CNT); i++)
|
|
r |= hidinput->input->relbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(ABS_CNT); i++)
|
|
r |= hidinput->input->absbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(MSC_CNT); i++)
|
|
r |= hidinput->input->mscbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(LED_CNT); i++)
|
|
r |= hidinput->input->ledbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(SND_CNT); i++)
|
|
r |= hidinput->input->sndbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(FF_CNT); i++)
|
|
r |= hidinput->input->ffbit[i];
|
|
|
|
for (i = 0; i < BITS_TO_LONGS(SW_CNT); i++)
|
|
r |= hidinput->input->swbit[i];
|
|
|
|
return !!r;
|
|
}
|
|
|
|
static void hidinput_cleanup_hidinput(struct hid_device *hid,
|
|
struct hid_input *hidinput)
|
|
{
|
|
struct hid_report *report;
|
|
int i, k;
|
|
|
|
list_del(&hidinput->list);
|
|
input_free_device(hidinput->input);
|
|
kfree(hidinput->name);
|
|
|
|
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
|
|
if (k == HID_OUTPUT_REPORT &&
|
|
hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
|
|
continue;
|
|
|
|
list_for_each_entry(report, &hid->report_enum[k].report_list,
|
|
list) {
|
|
|
|
for (i = 0; i < report->maxfield; i++)
|
|
if (report->field[i]->hidinput == hidinput)
|
|
report->field[i]->hidinput = NULL;
|
|
}
|
|
}
|
|
|
|
kfree(hidinput);
|
|
}
|
|
|
|
static struct hid_input *hidinput_match(struct hid_report *report)
|
|
{
|
|
struct hid_device *hid = report->device;
|
|
struct hid_input *hidinput;
|
|
|
|
list_for_each_entry(hidinput, &hid->inputs, list) {
|
|
if (hidinput->report &&
|
|
hidinput->report->id == report->id)
|
|
return hidinput;
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static struct hid_input *hidinput_match_application(struct hid_report *report)
|
|
{
|
|
struct hid_device *hid = report->device;
|
|
struct hid_input *hidinput;
|
|
|
|
list_for_each_entry(hidinput, &hid->inputs, list) {
|
|
if (hidinput->application == report->application)
|
|
return hidinput;
|
|
|
|
/*
|
|
* Keep SystemControl and ConsumerControl applications together
|
|
* with the main keyboard, if present.
|
|
*/
|
|
if ((report->application == HID_GD_SYSTEM_CONTROL ||
|
|
report->application == HID_CP_CONSUMER_CONTROL) &&
|
|
hidinput->application == HID_GD_KEYBOARD) {
|
|
return hidinput;
|
|
}
|
|
}
|
|
|
|
return NULL;
|
|
}
|
|
|
|
static inline void hidinput_configure_usages(struct hid_input *hidinput,
|
|
struct hid_report *report)
|
|
{
|
|
int i, j, k;
|
|
int first_field_index = 0;
|
|
int slot_collection_index = -1;
|
|
int prev_collection_index = -1;
|
|
unsigned int slot_idx = 0;
|
|
struct hid_field *field;
|
|
|
|
/*
|
|
* First tag all the fields that are part of a slot,
|
|
* a slot needs to have one Contact ID in the collection
|
|
*/
|
|
for (i = 0; i < report->maxfield; i++) {
|
|
field = report->field[i];
|
|
|
|
/* ignore fields without usage */
|
|
if (field->maxusage < 1)
|
|
continue;
|
|
|
|
/*
|
|
* janitoring when collection_index changes
|
|
*/
|
|
if (prev_collection_index != field->usage->collection_index) {
|
|
prev_collection_index = field->usage->collection_index;
|
|
first_field_index = i;
|
|
}
|
|
|
|
/*
|
|
* if we already found a Contact ID in the collection,
|
|
* tag and continue to the next.
|
|
*/
|
|
if (slot_collection_index == field->usage->collection_index) {
|
|
field->slot_idx = slot_idx;
|
|
continue;
|
|
}
|
|
|
|
/* check if the current field has Contact ID */
|
|
for (j = 0; j < field->maxusage; j++) {
|
|
if (field->usage[j].hid == HID_DG_CONTACTID) {
|
|
slot_collection_index = field->usage->collection_index;
|
|
slot_idx++;
|
|
|
|
/*
|
|
* mark all previous fields and this one in the
|
|
* current collection to be slotted.
|
|
*/
|
|
for (k = first_field_index; k <= i; k++)
|
|
report->field[k]->slot_idx = slot_idx;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
for (i = 0; i < report->maxfield; i++)
|
|
for (j = 0; j < report->field[i]->maxusage; j++)
|
|
hidinput_configure_usage(hidinput, report->field[i],
|
|
report->field[i]->usage + j,
|
|
j);
|
|
}
|
|
|
|
/*
|
|
* Register the input device; print a message.
|
|
* Configure the input layer interface
|
|
* Read all reports and initialize the absolute field values.
|
|
*/
|
|
|
|
int hidinput_connect(struct hid_device *hid, unsigned int force)
|
|
{
|
|
struct hid_driver *drv = hid->driver;
|
|
struct hid_report *report;
|
|
struct hid_input *next, *hidinput = NULL;
|
|
unsigned int application;
|
|
int i, k;
|
|
|
|
INIT_LIST_HEAD(&hid->inputs);
|
|
INIT_WORK(&hid->led_work, hidinput_led_worker);
|
|
|
|
hid->status &= ~HID_STAT_DUP_DETECTED;
|
|
|
|
if (!force) {
|
|
for (i = 0; i < hid->maxcollection; i++) {
|
|
struct hid_collection *col = &hid->collection[i];
|
|
if (col->type == HID_COLLECTION_APPLICATION ||
|
|
col->type == HID_COLLECTION_PHYSICAL)
|
|
if (IS_INPUT_APPLICATION(col->usage))
|
|
break;
|
|
}
|
|
|
|
if (i == hid->maxcollection)
|
|
return -1;
|
|
}
|
|
|
|
report_features(hid);
|
|
|
|
for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) {
|
|
if (k == HID_OUTPUT_REPORT &&
|
|
hid->quirks & HID_QUIRK_SKIP_OUTPUT_REPORTS)
|
|
continue;
|
|
|
|
list_for_each_entry(report, &hid->report_enum[k].report_list, list) {
|
|
|
|
if (!report->maxfield)
|
|
continue;
|
|
|
|
application = report->application;
|
|
|
|
/*
|
|
* Find the previous hidinput report attached
|
|
* to this report id.
|
|
*/
|
|
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
|
|
hidinput = hidinput_match(report);
|
|
else if (hid->maxapplication > 1 &&
|
|
(hid->quirks & HID_QUIRK_INPUT_PER_APP))
|
|
hidinput = hidinput_match_application(report);
|
|
|
|
if (!hidinput) {
|
|
hidinput = hidinput_allocate(hid, application);
|
|
if (!hidinput)
|
|
goto out_unwind;
|
|
}
|
|
|
|
hidinput_configure_usages(hidinput, report);
|
|
|
|
if (hid->quirks & HID_QUIRK_MULTI_INPUT)
|
|
hidinput->report = report;
|
|
|
|
list_add_tail(&report->hidinput_list,
|
|
&hidinput->reports);
|
|
}
|
|
}
|
|
|
|
hidinput_change_resolution_multipliers(hid);
|
|
|
|
list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
|
|
if (drv->input_configured &&
|
|
drv->input_configured(hid, hidinput))
|
|
goto out_unwind;
|
|
|
|
if (!hidinput_has_been_populated(hidinput)) {
|
|
/* no need to register an input device not populated */
|
|
hidinput_cleanup_hidinput(hid, hidinput);
|
|
continue;
|
|
}
|
|
|
|
if (input_register_device(hidinput->input))
|
|
goto out_unwind;
|
|
hidinput->registered = true;
|
|
}
|
|
|
|
if (list_empty(&hid->inputs)) {
|
|
hid_err(hid, "No inputs registered, leaving\n");
|
|
goto out_unwind;
|
|
}
|
|
|
|
if (hid->status & HID_STAT_DUP_DETECTED)
|
|
hid_dbg(hid,
|
|
"Some usages could not be mapped, please use HID_QUIRK_INCREMENT_USAGE_ON_DUPLICATE if this is legitimate.\n");
|
|
|
|
return 0;
|
|
|
|
out_unwind:
|
|
/* unwind the ones we already registered */
|
|
hidinput_disconnect(hid);
|
|
|
|
return -1;
|
|
}
|
|
EXPORT_SYMBOL_GPL(hidinput_connect);
|
|
|
|
void hidinput_disconnect(struct hid_device *hid)
|
|
{
|
|
struct hid_input *hidinput, *next;
|
|
|
|
hidinput_cleanup_battery(hid);
|
|
|
|
list_for_each_entry_safe(hidinput, next, &hid->inputs, list) {
|
|
list_del(&hidinput->list);
|
|
if (hidinput->registered)
|
|
input_unregister_device(hidinput->input);
|
|
else
|
|
input_free_device(hidinput->input);
|
|
kfree(hidinput->name);
|
|
kfree(hidinput);
|
|
}
|
|
|
|
/* led_work is spawned by input_dev callbacks, but doesn't access the
|
|
* parent input_dev at all. Once all input devices are removed, we
|
|
* know that led_work will never get restarted, so we can cancel it
|
|
* synchronously and are safe. */
|
|
cancel_work_sync(&hid->led_work);
|
|
}
|
|
EXPORT_SYMBOL_GPL(hidinput_disconnect);
|
|
|
|
#ifdef CONFIG_HID_KUNIT_TEST
|
|
#include "hid-input-test.c"
|
|
#endif
|