diff --git a/drivers/hid/Kconfig b/drivers/hid/Kconfig index f2c4f9e89cac..23394a4d0262 100644 --- a/drivers/hid/Kconfig +++ b/drivers/hid/Kconfig @@ -465,6 +465,15 @@ config HID_KYE - MousePen i608X tablet - EasyPen M610X tablet +config HID_KYSONA + tristate "Kysona devices" + depends on USB_HID + help + Support for Kysona mice. + + Say Y here if you have a Kysona M600 mouse + and want to be able to read its battery capacity. + config HID_UCLOGIC tristate "UC-Logic" depends on USB_HID diff --git a/drivers/hid/Makefile b/drivers/hid/Makefile index 496dab54c73a..51cf887f54bd 100644 --- a/drivers/hid/Makefile +++ b/drivers/hid/Makefile @@ -70,6 +70,7 @@ obj-$(CONFIG_HID_JABRA) += hid-jabra.o obj-$(CONFIG_HID_KENSINGTON) += hid-kensington.o obj-$(CONFIG_HID_KEYTOUCH) += hid-keytouch.o obj-$(CONFIG_HID_KYE) += hid-kye.o +obj-$(CONFIG_HID_KYSONA) += hid-kysona.o obj-$(CONFIG_HID_LCPOWER) += hid-lcpower.o obj-$(CONFIG_HID_LENOVO) += hid-lenovo.o obj-$(CONFIG_HID_LETSKETCH) += hid-letsketch.o diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h index 0f23be98c56e..1f47fda809b9 100644 --- a/drivers/hid/hid-ids.h +++ b/drivers/hid/hid-ids.h @@ -736,6 +736,10 @@ #define USB_DEVICE_ID_KYE_MOUSEPEN_I608X_V2 0x501A #define USB_DEVICE_ID_KYE_PENSKETCH_T609A 0x501B +#define USB_VENDOR_ID_KYSONA 0x3554 +#define USB_DEVICE_ID_KYSONA_M600_DONGLE 0xF57C +#define USB_DEVICE_ID_KYSONA_M600_WIRED 0xF57D + #define USB_VENDOR_ID_LABTEC 0x1020 #define USB_DEVICE_ID_LABTEC_WIRELESS_KEYBOARD 0x0006 #define USB_DEVICE_ID_LABTEC_ODDOR_HANDBRAKE 0x8888 diff --git a/drivers/hid/hid-kysona.c b/drivers/hid/hid-kysona.c new file mode 100644 index 000000000000..d4c0406b3323 --- /dev/null +++ b/drivers/hid/hid-kysona.c @@ -0,0 +1,248 @@ +// SPDX-License-Identifier: GPL-2.0-or-later +/* + * USB HID driver for Kysona + * Kysona M600 mice. + * + * Copyright (c) 2024 Lode Willems + */ + +#include +#include +#include + +#include "hid-ids.h" + +#define BATTERY_TIMEOUT_MS 5000 + +#define BATTERY_REPORT_ID 4 + +struct kysona_drvdata { + struct hid_device *hdev; + bool online; + + struct power_supply_desc battery_desc; + struct power_supply *battery; + u8 battery_capacity; + bool battery_charging; + u16 battery_voltage; + struct delayed_work battery_work; +}; + +static enum power_supply_property kysona_battery_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, + POWER_SUPPLY_PROP_CAPACITY, + POWER_SUPPLY_PROP_SCOPE, + POWER_SUPPLY_PROP_MODEL_NAME, + POWER_SUPPLY_PROP_VOLTAGE_NOW, + POWER_SUPPLY_PROP_ONLINE +}; + +static int kysona_battery_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct kysona_drvdata *drv_data = power_supply_get_drvdata(psy); + int ret = 0; + + switch (psp) { + case POWER_SUPPLY_PROP_PRESENT: + val->intval = 1; + break; + case POWER_SUPPLY_PROP_ONLINE: + val->intval = drv_data->online; + break; + case POWER_SUPPLY_PROP_STATUS: + if (drv_data->online) + val->intval = drv_data->battery_charging ? + POWER_SUPPLY_STATUS_CHARGING : + POWER_SUPPLY_STATUS_DISCHARGING; + else + val->intval = POWER_SUPPLY_STATUS_UNKNOWN; + break; + case POWER_SUPPLY_PROP_SCOPE: + val->intval = POWER_SUPPLY_SCOPE_DEVICE; + break; + case POWER_SUPPLY_PROP_CAPACITY: + val->intval = drv_data->battery_capacity; + break; + case POWER_SUPPLY_PROP_VOLTAGE_NOW: + /* hardware reports voltage in mV. sysfs expects uV */ + val->intval = drv_data->battery_voltage * 1000; + break; + case POWER_SUPPLY_PROP_MODEL_NAME: + val->strval = drv_data->hdev->name; + break; + default: + ret = -EINVAL; + break; + } + return ret; +} + +static const char kysona_battery_request[] = { + 0x08, BATTERY_REPORT_ID, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x49 +}; + +static int kysona_m600_fetch_battery(struct hid_device *hdev) +{ + u8 *write_buf; + int ret; + + /* Request battery information */ + write_buf = kmemdup(kysona_battery_request, sizeof(kysona_battery_request), GFP_KERNEL); + if (!write_buf) + return -ENOMEM; + + ret = hid_hw_raw_request(hdev, kysona_battery_request[0], + write_buf, sizeof(kysona_battery_request), + HID_OUTPUT_REPORT, HID_REQ_SET_REPORT); + if (ret < (int)sizeof(kysona_battery_request)) { + hid_err(hdev, "hid_hw_raw_request() failed with %d\n", ret); + ret = -ENODATA; + } + kfree(write_buf); + return ret; +} + +static void kysona_fetch_battery(struct hid_device *hdev) +{ + int ret = kysona_m600_fetch_battery(hdev); + + if (ret < 0) + hid_dbg(hdev, + "Battery query failed (err: %d)\n", ret); +} + +static void kysona_battery_timer_tick(struct work_struct *work) +{ + struct kysona_drvdata *drv_data = container_of(work, + struct kysona_drvdata, battery_work.work); + struct hid_device *hdev = drv_data->hdev; + + kysona_fetch_battery(hdev); + schedule_delayed_work(&drv_data->battery_work, + msecs_to_jiffies(BATTERY_TIMEOUT_MS)); +} + +static int kysona_battery_probe(struct hid_device *hdev) +{ + struct kysona_drvdata *drv_data = hid_get_drvdata(hdev); + struct power_supply_config pscfg = { .drv_data = drv_data }; + int ret = 0; + + drv_data->online = false; + drv_data->battery_capacity = 100; + drv_data->battery_voltage = 4200; + + drv_data->battery_desc.properties = kysona_battery_props; + drv_data->battery_desc.num_properties = ARRAY_SIZE(kysona_battery_props); + drv_data->battery_desc.get_property = kysona_battery_get_property; + drv_data->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; + drv_data->battery_desc.use_for_apm = 0; + drv_data->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL, + "kysona-%s-battery", + strlen(hdev->uniq) ? + hdev->uniq : dev_name(&hdev->dev)); + if (!drv_data->battery_desc.name) + return -ENOMEM; + + drv_data->battery = devm_power_supply_register(&hdev->dev, + &drv_data->battery_desc, &pscfg); + if (IS_ERR(drv_data->battery)) { + ret = PTR_ERR(drv_data->battery); + drv_data->battery = NULL; + hid_err(hdev, "Unable to register battery device\n"); + return ret; + } + + power_supply_powers(drv_data->battery, &hdev->dev); + + INIT_DELAYED_WORK(&drv_data->battery_work, kysona_battery_timer_tick); + kysona_fetch_battery(hdev); + schedule_delayed_work(&drv_data->battery_work, + msecs_to_jiffies(BATTERY_TIMEOUT_MS)); + + return ret; +} + +static int kysona_probe(struct hid_device *hdev, const struct hid_device_id *id) +{ + int ret; + struct kysona_drvdata *drv_data; + struct usb_interface *usbif; + + if (!hid_is_usb(hdev)) + return -EINVAL; + + usbif = to_usb_interface(hdev->dev.parent); + + drv_data = devm_kzalloc(&hdev->dev, sizeof(*drv_data), GFP_KERNEL); + if (!drv_data) + return -ENOMEM; + + hid_set_drvdata(hdev, drv_data); + drv_data->hdev = hdev; + + ret = hid_parse(hdev); + if (ret) + return ret; + + ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); + if (ret) + return ret; + + if (usbif->cur_altsetting->desc.bInterfaceNumber == 1) { + if (kysona_battery_probe(hdev) < 0) + hid_err(hdev, "Kysona hid battery_probe failed: %d\n", ret); + } + + return 0; +} + +static int kysona_raw_event(struct hid_device *hdev, + struct hid_report *report, u8 *data, int size) +{ + struct kysona_drvdata *drv_data = hid_get_drvdata(hdev); + + if (drv_data->battery && size == sizeof(kysona_battery_request) && + data[0] == 8 && data[1] == BATTERY_REPORT_ID) { + drv_data->battery_capacity = data[6]; + drv_data->battery_charging = data[7]; + drv_data->battery_voltage = (data[8] << 8) | data[9]; + drv_data->online = true; + } + + return 0; +} + +static void kysona_remove(struct hid_device *hdev) +{ + struct kysona_drvdata *drv_data = hid_get_drvdata(hdev); + + if (drv_data->battery) + cancel_delayed_work_sync(&drv_data->battery_work); + + hid_hw_stop(hdev); +} + +static const struct hid_device_id kysona_devices[] = { + { HID_USB_DEVICE(USB_VENDOR_ID_KYSONA, USB_DEVICE_ID_KYSONA_M600_DONGLE) }, + { HID_USB_DEVICE(USB_VENDOR_ID_KYSONA, USB_DEVICE_ID_KYSONA_M600_WIRED) }, + { } +}; +MODULE_DEVICE_TABLE(hid, kysona_devices); + +static struct hid_driver kysona_driver = { + .name = "kysona", + .id_table = kysona_devices, + .probe = kysona_probe, + .raw_event = kysona_raw_event, + .remove = kysona_remove +}; +module_hid_driver(kysona_driver); + +MODULE_LICENSE("GPL"); +MODULE_DESCRIPTION("HID driver for Kysona devices"); +MODULE_AUTHOR("Lode Willems ");