^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-only
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * HID driver for some ITE "special" devices
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Copyright (c) 2017 Hans de Goede <hdegoede@redhat.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) #include <linux/device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) #include <linux/hid.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include "hid-ids.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #define QUIRK_TOUCHPAD_ON_OFF_REPORT BIT(0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) static __u8 *ite_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) if (quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) if (*rsize == 188 && rdesc[162] == 0x81 && rdesc[163] == 0x02) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) hid_info(hdev, "Fixing up ITE keyboard report descriptor\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) rdesc[163] = HID_MAIN_ITEM_RELATIVE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) return rdesc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) static int ite_input_mapping(struct hid_device *hdev,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) struct hid_input *hi, struct hid_field *field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) struct hid_usage *usage, unsigned long **bit,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) int *max)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) unsigned long quirks = (unsigned long)hid_get_drvdata(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) if ((quirks & QUIRK_TOUCHPAD_ON_OFF_REPORT) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) (usage->hid & HID_USAGE_PAGE) == 0x00880000) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (usage->hid == 0x00880078) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) /* Touchpad on, userspace expects F22 for this */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F22);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if (usage->hid == 0x00880079) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) /* Touchpad off, userspace expects F23 for this */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) hid_map_usage_clear(hi, usage, bit, max, EV_KEY, KEY_F23);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) static int ite_event(struct hid_device *hdev, struct hid_field *field,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) struct hid_usage *usage, __s32 value)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) if (!(hdev->claimed & HID_CLAIMED_INPUT) || !field->hidinput)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) input = field->hidinput->input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) * The ITE8595 always reports 0 as value for the rfkill button. Luckily
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) * it is the only button in its report, and it sends a report on
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) * release only, so receiving a report means the button was pressed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) if (usage->hid == HID_GD_RFKILL_BTN) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) input_event(input, EV_KEY, KEY_RFKILL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) input_event(input, EV_KEY, KEY_RFKILL, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) input_sync(input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) return 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static int ite_probe(struct hid_device *hdev, const struct hid_device_id *id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) int ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) hid_set_drvdata(hdev, (void *)id->driver_data);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) ret = hid_open_report(hdev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (ret)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) return hid_hw_start(hdev, HID_CONNECT_DEFAULT);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static const struct hid_device_id ite_devices[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) { HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE8595) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) { HID_USB_DEVICE(USB_VENDOR_ID_258A, USB_DEVICE_ID_258A_6A88) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) /* ITE8595 USB kbd ctlr, with Synaptics touchpad connected to it. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) USB_VENDOR_ID_SYNAPTICS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) USB_DEVICE_ID_SYNAPTICS_ACER_SWITCH5_012),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) .driver_data = QUIRK_TOUCHPAD_ON_OFF_REPORT },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) /* ITE8910 USB kbd ctlr, with Synaptics touchpad connected to it. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) USB_VENDOR_ID_SYNAPTICS,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) USB_DEVICE_ID_SYNAPTICS_ACER_ONE_S1003) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) MODULE_DEVICE_TABLE(hid, ite_devices);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) static struct hid_driver ite_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) .name = "itetech",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) .id_table = ite_devices,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) .probe = ite_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) .report_fixup = ite_report_fixup,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) .input_mapping = ite_input_mapping,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) .event = ite_event,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) module_hid_driver(ite_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) MODULE_LICENSE("GPL");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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