| // 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 <vojtech@ucw.cz>, or by paper mail: |
| * Vojtech Pavlik, Simunkova 1594, Prague 8, 182 00 Czech Republic |
| */ |
| |
| #include <linux/module.h> |
| #include <linux/slab.h> |
| #include <linux/kernel.h> |
| |
| #include <linux/hid.h> |
| #include <linux/hid-debug.h> |
| |
| #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}}; |
| |
| #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_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->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 */ |
| |
| 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_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 }, |
| {} |
| }; |
| |
| 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 if (dev->battery_capacity == 100) |
| val->intval = POWER_SUPPLY_STATUS_FULL; |
| else |
| val->intval = POWER_SUPPLY_STATUS_DISCHARGING; |
| 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) |
| { |
| 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 (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; |
| |
| /* |
| * 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; |
| |
| 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); |
| } |
| } |
| #else /* !CONFIG_HID_BATTERY_STRENGTH */ |
| static int hidinput_setup_battery(struct hid_device *dev, unsigned report_type, |
| struct hid_field *field) |
| { |
| return 0; |
| } |
| |
| static void hidinput_cleanup_battery(struct hid_device *dev) |
| { |
| } |
| |
| static void hidinput_update_battery(struct hid_device *dev, int value) |
| { |
| } |
| #endif /* CONFIG_HID_BATTERY_STRENGTH */ |
| |
| static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_field *field, |
| struct hid_usage *usage) |
| { |
| struct input_dev *input = hidinput->input; |
| struct hid_device *device = input_get_drvdata(input); |
| int max = 0, code; |
| 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; |
| } |
| |
| 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; |
| 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) == 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 & 0xff) { |
| case 0x21: map_key(BTN_TOOL_MOUSE); break; |
| case 0x22: map_key(BTN_TOOL_FINGER); break; |
| default: map_key(BTN_TOOL_PEN); break; |
| } |
| break; |
| |
| case 0x3b: /* Battery Strength */ |
| hidinput_setup_battery(device, HID_INPUT_REPORT, field); |
| usage->type = EV_PWR; |
| return; |
| |
| case 0x3c: /* Invert */ |
| 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 by Invert usage when |
| * tool gets in proximity. |
| */ |
| map_key_clear(BTN_TOUCH); |
| break; |
| |
| case 0x46: /* TabletPick */ |
| case 0x5a: /* SecondaryBarrelSwitch */ |
| map_key_clear(BTN_STYLUS2); |
| break; |
| |
| case 0x5b: /* TransducerSerialNumber */ |
| usage->type = EV_MSC; |
| usage->code = MSC_SERIAL; |
| bit = input->mscbit; |
| max = MSC_MAX; |
| 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 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 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 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); |
| usage->type = EV_PWR; |
| return; |
| } |
| goto unknown; |
| |
| 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); |
| } |
| |
| void hidinput_hid_event(struct hid_device *hid, struct hid_field *field, struct hid_usage *usage, __s32 value) |
| { |
| struct input_dev *input; |
| unsigned *quirks = &hid->quirks; |
| |
| if (!usage->type) |
| return; |
| |
| if (usage->type == EV_PWR) { |
| 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; |
| } |
| |
| if (usage->hid == (HID_UP_DIGITIZER | 0x003c)) { /* Invert */ |
| *quirks = value ? (*quirks | HID_QUIRK_INVERT) : (*quirks & ~HID_QUIRK_INVERT); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_DIGITIZER | 0x0032)) { /* InRange */ |
| if (value) { |
| input_event(input, usage->type, (*quirks & HID_QUIRK_INVERT) ? BTN_TOOL_RUBBER : usage->code, 1); |
| return; |
| } |
| input_event(input, usage->type, usage->code, 0); |
| input_event(input, usage->type, BTN_TOOL_RUBBER, 0); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_DIGITIZER | 0x0030) && (*quirks & HID_QUIRK_NOTOUCH)) { /* Pressure */ |
| int a = field->logical_minimum; |
| int b = field->logical_maximum; |
| input_event(input, EV_KEY, BTN_TOUCH, value > a + ((b - a) >> 3)); |
| } |
| |
| if (usage->hid == (HID_UP_PID | 0x83UL)) { /* Simultaneous Effects Max */ |
| dbg_hid("Maximum Effects - %d\n",value); |
| return; |
| } |
| |
| if (usage->hid == (HID_UP_PID | 0x7fUL)) { |
| dbg_hid("PID Pool Report\n"); |
| return; |
| } |
| |
| if ((usage->type == EV_KEY) && (usage->code == 0)) /* Key 0 is "unassigned", not KEY_UNKNOWN */ |
| return; |
| |
| if ((usage->type == EV_REL) && (usage->code == REL_WHEEL_HI_RES || |
| usage->code == REL_HWHEEL_HI_RES)) { |
| hidinput_handle_scroll(usage, input, value); |
| return; |
| } |
| |
| if ((usage->type == EV_ABS) && (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; |
| } |
| |
| /* |
| * 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); |
| } |
| |
| /* |
| * 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); |
| |
| 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; |
| } |
| EXPORT_SYMBOL_GPL(hidinput_find_field); |
| |
| 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]); |
| |
| 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_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; |
| } |
| |
| return NULL; |
| } |
| |
| static inline void hidinput_configure_usages(struct hid_input *hidinput, |
| struct hid_report *report) |
| { |
| int i, j; |
| |
| 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); |
| } |
| |
| /* |
| * 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); |