From 12ad6ebd615f57b7b1032953ab9ea9b29ca1bc87 Mon Sep 17 00:00:00 2001 From: Nicolas James Date: Sun, 13 Apr 2025 20:42:31 +1000 Subject: Add ability to write userspace tests, update cmake build process --- src/hid-input.c | 2477 ------------------------------------------------------- 1 file changed, 2477 deletions(-) delete mode 100644 src/hid-input.c (limited to 'src/hid-input.c') diff --git a/src/hid-input.c b/src/hid-input.c deleted file mode 100644 index 8c8a748..0000000 --- a/src/hid-input.c +++ /dev/null @@ -1,2477 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-or-later -/* - * Copyright (c) 2000-2001 Vojtech Pavlik - * Copyright (c) 2006-2010 Jiri Kosina - * - * HID to Linux Input mapping - */ - -/* - * - * Should you need to contact me, the author, you can do so either by - * e-mail - mail your message to , or by paper mail: - * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic - */ - -#include -#include -#include -#include - -#include -#include - -#include "hid-ids.h" - -#define unk KEY_UNKNOWN - -static const unsigned char hid_keyboard[256] = { - 0, 0, 0, 0, 30, 48, 46, 32, 18, 33, 34, 35, 23, 36, 37, 38, - 50, 49, 24, 25, 16, 19, 31, 20, 22, 47, 17, 45, 21, 44, 2, 3, - 4, 5, 6, 7, 8, 9, 10, 11, 28, 1, 14, 15, 57, 12, 13, 26, - 27, 43, 43, 39, 40, 41, 51, 52, 53, 58, 59, 60, 61, 62, 63, 64, - 65, 66, 67, 68, 87, 88, 99, 70,119,110,102,104,111,107,109,106, - 105,108,103, 69, 98, 55, 74, 78, 96, 79, 80, 81, 75, 76, 77, 71, - 72, 73, 82, 83, 86,127,116,117,183,184,185,186,187,188,189,190, - 191,192,193,194,134,138,130,132,128,129,131,137,133,135,136,113, - 115,114,unk,unk,unk,121,unk, 89, 93,124, 92, 94, 95,unk,unk,unk, - 122,123, 90, 91, 85,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk, - unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, - unk,unk,unk,unk,unk,unk,179,180,unk,unk,unk,unk,unk,unk,unk,unk, - unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk,unk, - unk,unk,unk,unk,unk,unk,unk,unk,111,unk,unk,unk,unk,unk,unk,unk, - 29, 42, 56,125, 97, 54,100,126,164,166,165,163,161,115,114,113, - 150,158,159,128,136,177,178,176,142,152,173,140,unk,unk,unk,unk -}; - -static const struct { - __s32 x; - __s32 y; -} hid_hat_to_axis[] = {{ 0, 0}, { 0,-1}, { 1,-1}, { 1, 0}, { 1, 1}, { 0, 1}, {-1, 1}, {-1, 0}, {-1,-1}}; - -struct usage_priority { - __u32 usage; /* the HID usage associated */ - bool global; /* we assume all usages to be slotted, - * unless global - */ - unsigned int slot_overwrite; /* for globals: allows to set the usage - * before or after the slots - */ -}; - -/* - * hid-input will convert this list into priorities: - * the first element will have the highest priority - * (the length of the following array) and the last - * element the lowest (1). - * - * hid-input will then shift the priority by 8 bits to leave some space - * in case drivers want to interleave other fields. - * - * To accommodate slotted devices, the slot priority is - * defined in the next 8 bits (defined by 0xff - slot). - * - * If drivers want to add fields before those, hid-input will - * leave out the first 8 bits of the priority value. - * - * This still leaves us 65535 individual priority values. - */ -static const struct usage_priority hidinput_usages_priorities[] = { - { /* Eraser (eraser touching) must always come before tipswitch */ - .usage = HID_DG_ERASER, - }, - { /* Invert must always come before In Range */ - .usage = HID_DG_INVERT, - }, - { /* Is the tip of the tool touching? */ - .usage = HID_DG_TIPSWITCH, - }, - { /* Tip Pressure might emulate tip switch */ - .usage = HID_DG_TIPPRESSURE, - }, - { /* In Range needs to come after the other tool states */ - .usage = HID_DG_INRANGE, - }, -}; - -#define map_abs(c) hid_map_usage(hidinput, usage, &bit, &max, EV_ABS, (c)) -#define map_rel(c) hid_map_usage(hidinput, usage, &bit, &max, EV_REL, (c)) -#define map_key(c) hid_map_usage(hidinput, usage, &bit, &max, EV_KEY, (c)) -#define map_led(c) hid_map_usage(hidinput, usage, &bit, &max, EV_LED, (c)) -#define map_msc(c) hid_map_usage(hidinput, usage, &bit, &max, EV_MSC, (c)) - -#define map_abs_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \ - &max, EV_ABS, (c)) -#define map_key_clear(c) hid_map_usage_clear(hidinput, usage, &bit, \ - &max, EV_KEY, (c)) - -static bool match_scancode(struct hid_usage *usage, - unsigned int cur_idx, unsigned int scancode) -{ - return (usage->hid & (HID_USAGE_PAGE | HID_USAGE)) == scancode; -} - -static bool match_keycode(struct hid_usage *usage, - unsigned int cur_idx, unsigned int keycode) -{ - /* - * We should exclude unmapped usages when doing lookup by keycode. - */ - return (usage->type == EV_KEY && usage->code == keycode); -} - -static bool match_index(struct hid_usage *usage, - unsigned int cur_idx, unsigned int idx) -{ - return cur_idx == idx; -} - -typedef bool (*hid_usage_cmp_t)(struct hid_usage *usage, - unsigned int cur_idx, unsigned int val); - -static struct hid_usage *hidinput_find_key(struct hid_device *hid, - hid_usage_cmp_t match, - unsigned int value, - unsigned int *usage_idx) -{ - unsigned int i, j, k, cur_idx = 0; - struct hid_report *report; - struct hid_usage *usage; - - for (k = HID_INPUT_REPORT; k <= HID_OUTPUT_REPORT; k++) { - list_for_each_entry(report, &hid->report_enum[k].report_list, list) { - for (i = 0; i < report->maxfield; i++) { - for (j = 0; j < report->field[i]->maxusage; j++) { - usage = report->field[i]->usage + j; - if (usage->type == EV_KEY || usage->type == 0) { - if (match(usage, cur_idx, value)) { - if (usage_idx) - *usage_idx = cur_idx; - return usage; - } - cur_idx++; - } - } - } - } - } - return NULL; -} - -static struct hid_usage *hidinput_locate_usage(struct hid_device *hid, - const struct input_keymap_entry *ke, - unsigned int *index) -{ - struct hid_usage *usage; - unsigned int scancode; - - if (ke->flags & INPUT_KEYMAP_BY_INDEX) - usage = hidinput_find_key(hid, match_index, ke->index, index); - else if (input_scancode_to_scalar(ke, &scancode) == 0) - usage = hidinput_find_key(hid, match_scancode, scancode, index); - else - usage = NULL; - - return usage; -} - -static int hidinput_getkeycode(struct input_dev *dev, - struct input_keymap_entry *ke) -{ - struct hid_device *hid = input_get_drvdata(dev); - struct hid_usage *usage; - unsigned int scancode, index; - - usage = hidinput_locate_usage(hid, ke, &index); - if (usage) { - ke->keycode = usage->type == EV_KEY ? - usage->code : KEY_RESERVED; - ke->index = index; - scancode = usage->hid & (HID_USAGE_PAGE | HID_USAGE); - ke->len = sizeof(scancode); - memcpy(ke->scancode, &scancode, sizeof(scancode)); - return 0; - } - - return -EINVAL; -} - -static int hidinput_setkeycode(struct input_dev *dev, - const struct input_keymap_entry *ke, - unsigned int *old_keycode) -{ - struct hid_device *hid = input_get_drvdata(dev); - struct hid_usage *usage; - - usage = hidinput_locate_usage(hid, ke, NULL); - if (usage) { - *old_keycode = usage->type == EV_KEY ? - usage->code : KEY_RESERVED; - usage->type = EV_KEY; - usage->code = ke->keycode; - - clear_bit(*old_keycode, dev->keybit); - set_bit(usage->code, dev->keybit); - dbg_hid("Assigned keycode %d to HID usage code %x\n", - usage->code, usage->hid); - - /* - * Set the keybit for the old keycode if the old keycode is used - * by another key - */ - if (hidinput_find_key(hid, match_keycode, *old_keycode, NULL)) - set_bit(*old_keycode, dev->keybit); - - return 0; - } - - return -EINVAL; -} - - -/** - * hidinput_calc_abs_res - calculate an absolute axis resolution - * @field: the HID report field to calculate resolution for - * @code: axis code - * - * The formula is: - * (logical_maximum - logical_minimum) - * resolution = ---------------------------------------------------------- - * (physical_maximum - physical_minimum) * 10 ^ unit_exponent - * - * as seen in the HID specification v1.11 6.2.2.7 Global Items. - * - * Only exponent 1 length units are processed. Centimeters and inches are - * converted to millimeters. Degrees are converted to radians. - */ -__s32 hidinput_calc_abs_res(const struct hid_field *field, __u16 code) -{ - __s32 unit_exponent = field->unit_exponent; - __s32 logical_extents = field->logical_maximum - - field->logical_minimum; - __s32 physical_extents = field->physical_maximum - - field->physical_minimum; - __s32 prev; - - /* Check if the extents are sane */ - if (logical_extents <= 0 || physical_extents <= 0) - return 0; - - /* - * Verify and convert units. - * See HID specification v1.11 6.2.2.7 Global Items for unit decoding - */ - switch (code) { - case ABS_X: - case ABS_Y: - case ABS_Z: - case ABS_MT_POSITION_X: - case ABS_MT_POSITION_Y: - case ABS_MT_TOOL_X: - case ABS_MT_TOOL_Y: - case ABS_MT_TOUCH_MAJOR: - case ABS_MT_TOUCH_MINOR: - if (field->unit == 0x11) { /* If centimeters */ - /* Convert to millimeters */ - unit_exponent += 1; - } else if (field->unit == 0x13) { /* If inches */ - /* Convert to millimeters */ - prev = physical_extents; - physical_extents *= 254; - if (physical_extents < prev) - return 0; - unit_exponent -= 1; - } else { - return 0; - } - break; - - case ABS_RX: - case ABS_RY: - case ABS_RZ: - case ABS_WHEEL: - case ABS_TILT_X: - case ABS_TILT_Y: - if (field->unit == 0x14) { /* If degrees */ - /* Convert to radians */ - prev = logical_extents; - logical_extents *= 573; - if (logical_extents < prev) - return 0; - unit_exponent += 1; - } else if (field->unit != 0x12) { /* If not radians */ - return 0; - } - break; - - default: - return 0; - } - - /* Apply negative unit exponent */ - for (; unit_exponent < 0; unit_exponent++) { - prev = logical_extents; - logical_extents *= 10; - if (logical_extents < prev) - return 0; - } - /* Apply positive unit exponent */ - for (; unit_exponent > 0; unit_exponent--) { - prev = physical_extents; - physical_extents *= 10; - if (physical_extents < prev) - return 0; - } - - /* Calculate resolution */ - return DIV_ROUND_CLOSEST(logical_extents, physical_extents); -} -EXPORT_SYMBOL_GPL(hidinput_calc_abs_res); - -#ifdef CONFIG_HID_BATTERY_STRENGTH -static enum power_supply_property hidinput_battery_props[] = { - POWER_SUPPLY_PROP_PRESENT, - POWER_SUPPLY_PROP_ONLINE, - POWER_SUPPLY_PROP_CAPACITY, - POWER_SUPPLY_PROP_MODEL_NAME, - POWER_SUPPLY_PROP_STATUS, - POWER_SUPPLY_PROP_SCOPE, -}; - -#define HID_BATTERY_QUIRK_PERCENT (1 << 0) /* always reports percent */ -#define HID_BATTERY_QUIRK_FEATURE (1 << 1) /* ask for feature report */ -#define HID_BATTERY_QUIRK_IGNORE (1 << 2) /* completely ignore the battery */ -#define HID_BATTERY_QUIRK_AVOID_QUERY (1 << 3) /* do not query the battery */ - -static const struct hid_device_id hid_battery_quirks[] = { - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, - USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ISO), - HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, - USB_DEVICE_ID_APPLE_ALU_WIRELESS_2009_ANSI), - HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, - USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ANSI), - HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, - USB_DEVICE_ID_APPLE_ALU_WIRELESS_2011_ISO), - HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, - USB_DEVICE_ID_APPLE_ALU_WIRELESS_ANSI), - HID_BATTERY_QUIRK_PERCENT | HID_BATTERY_QUIRK_FEATURE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_APPLE, - USB_DEVICE_ID_APPLE_MAGICTRACKPAD), - HID_BATTERY_QUIRK_IGNORE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, - USB_DEVICE_ID_ELECOM_BM084), - HID_BATTERY_QUIRK_IGNORE }, - { HID_USB_DEVICE(USB_VENDOR_ID_SYMBOL, - USB_DEVICE_ID_SYMBOL_SCANNER_3), - HID_BATTERY_QUIRK_IGNORE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, - USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), - HID_BATTERY_QUIRK_IGNORE }, - { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_LOGITECH, - USB_DEVICE_ID_LOGITECH_DINOVO_EDGE_KBD), - HID_BATTERY_QUIRK_IGNORE }, - { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550_TOUCHSCREEN), - HID_BATTERY_QUIRK_IGNORE }, - { HID_USB_DEVICE(USB_VENDOR_ID_ELAN, USB_DEVICE_ID_ASUS_UX550VE_TOUCHSCREEN), - HID_BATTERY_QUIRK_IGNORE }, - { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_L), - HID_BATTERY_QUIRK_AVOID_QUERY }, - { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_MW), - HID_BATTERY_QUIRK_AVOID_QUERY }, - { HID_USB_DEVICE(USB_VENDOR_ID_UGEE, USB_DEVICE_ID_UGEE_XPPEN_TABLET_DECO_PRO_SW), - HID_BATTERY_QUIRK_AVOID_QUERY }, - { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, I2C_DEVICE_ID_CHROMEBOOK_TROGDOR_POMPOM), - HID_BATTERY_QUIRK_AVOID_QUERY }, - /* - * Elan I2C-HID touchscreens seem to all report a non present battery, - * set HID_BATTERY_QUIRK_IGNORE for all Elan I2C-HID devices. - */ - { HID_I2C_DEVICE(USB_VENDOR_ID_ELAN, HID_ANY_ID), HID_BATTERY_QUIRK_IGNORE }, - {} -}; - -static unsigned find_battery_quirk(struct hid_device *hdev) -{ - unsigned quirks = 0; - const struct hid_device_id *match; - - match = hid_match_id(hdev, hid_battery_quirks); - if (match != NULL) - quirks = match->driver_data; - - return quirks; -} - -static int hidinput_scale_battery_capacity(struct hid_device *dev, - int value) -{ - 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 & 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; - case HID_GD_DO_NOT_DISTURB: - map_key_clear(KEY_DO_NOT_DISTURB); break; - default: goto unknown; - } - - if (usage->hid <= HID_GD_LEFT) { - if (field->dpad) { - map_abs(field->dpad); - goto ignore; - } - map_abs(ABS_HAT0X); - } - 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; - - 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; -} - -struct fastmouse_state { - int division; - long x, y; - int rise, run; -}; -static struct fastmouse_state fastmouse = { - .division = 1, - .x = 0, - .y = 0, - .rise = 0, - .run = INT_MAX, -}; - -static int set_division(const char *val, const struct kernel_param *kp) { - const int ret = kstrtoint(val, 0, &fastmouse.division); - if (ret != 0 || fastmouse.division <= 0) { - return -EINVAL; - } - return ret; -} -static const struct kernel_param_ops division_ops = { - .set = set_division, - .get = param_get_int, -}; -module_param_cb(division, &division_ops, &fastmouse.division, 0664); -MODULE_PARM_DESC(division, "Mouse movement division amount (default: 1)"); - -static int set_rise(const char *val, const struct kernel_param *kp) { - const int ret = kstrtoint(val, 0, &fastmouse.rise); - if (ret != 0) { - return -EINVAL; - } - return ret; -} -static const struct kernel_param_ops rise_ops = { - .set = set_rise, - .get = param_get_int, -}; -module_param_cb(rise, &rise_ops, &fastmouse.rise, 0664); -MODULE_PARM_DESC(rise, "Mouse movement rise amount (default: 0)"); - -static int set_run(const char *val, const struct kernel_param *kp) { - const int ret = kstrtoint(val, 0, &fastmouse.run); - if (ret != 0) { - return -EINVAL; - } - return ret; -} -static const struct kernel_param_ops run_ops = { - .set = set_run, - .get = param_get_int, -}; -module_param_cb(run, &run_ops, &fastmouse.run, 0664); -MODULE_PARM_DESC(run, "Mouse movement run amount (default: INT_MAX)"); - -static void fastmouse_handle_motion(const long in_x, const long in_y) { - const long rise = fastmouse.rise / fastmouse.division; - const long run = fastmouse.run / fastmouse.division; - fastmouse.x += in_x * run - in_y * rise; - fastmouse.y += in_x * rise + in_y * run; -} - -static void input_event_fastmouse(struct input_dev *input, const unsigned int type, const unsigned int code, __s32 value) { - const long in_x = (code == REL_X) * value; - const long in_y = (code == REL_Y) * value; - - fastmouse_handle_motion(in_x, in_y); - - const long emit_x = fastmouse.x / INT_MAX; - if (emit_x != 0) { - input_event(input, type, REL_X, emit_x); - } - const long emit_y = fastmouse.y / INT_MAX; - if (emit_y != 0) { - input_event(input, type, REL_Y, emit_y); - } - - fastmouse.x %= INT_MAX; - fastmouse.y %= INT_MAX; -} - -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); - - if (hid->type == HID_TYPE_USBMOUSE && usage->type == EV_REL) { - input_event_fastmouse(input, usage->type, usage->code, value); - } else { - 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 -- cgit v1.2.3