// SPDX-License-Identifier: GPL-2.0-or-later /* * HID driver for Asus notebook built-in keyboard. * Fixes small logical maximum to match usage maximum. * * Currently supported devices are: * EeeBook X205TA * VivoBook E200HA * * Copyright (c) 2016 Yusuke Fujimaki * * This module based on hid-ortek by * Copyright (c) 2010 Johnathon Harris * Copyright (c) 2011 Jiri Kosina * * This module has been updated to add support for Asus i2c touchpad. * * Copyright (c) 2016 Brendan McGrath * Copyright (c) 2016 Victor Vlasenko * Copyright (c) 2016 Frederik Wenigwieser */ /* */ #include #include #include #include #include #include /* For to_usb_interface for T100 touchpad intf check */ #include #include "hid-ids.h" MODULE_AUTHOR("Yusuke Fujimaki "); MODULE_AUTHOR("Brendan McGrath "); MODULE_AUTHOR("Victor Vlasenko "); MODULE_AUTHOR("Frederik Wenigwieser "); MODULE_DESCRIPTION("Asus HID Keyboard and TouchPad"); #define T100_TPAD_INTF 2 #define MEDION_E1239T_TPAD_INTF 1 #define E1239T_TP_TOGGLE_REPORT_ID 0x05 #define T100CHI_MOUSE_REPORT_ID 0x06 #define FEATURE_REPORT_ID 0x0d #define INPUT_REPORT_ID 0x5d #define FEATURE_KBD_REPORT_ID 0x5a #define FEATURE_KBD_REPORT_SIZE 16 #define FEATURE_KBD_LED_REPORT_ID1 0x5d #define FEATURE_KBD_LED_REPORT_ID2 0x5e #define SUPPORT_KBD_BACKLIGHT BIT(0) #define MAX_TOUCH_MAJOR 8 #define MAX_PRESSURE 128 #define BTN_LEFT_MASK 0x01 #define CONTACT_TOOL_TYPE_MASK 0x80 #define CONTACT_X_MSB_MASK 0xf0 #define CONTACT_Y_MSB_MASK 0x0f #define CONTACT_TOUCH_MAJOR_MASK 0x07 #define CONTACT_PRESSURE_MASK 0x7f #define BATTERY_REPORT_ID (0x03) #define BATTERY_REPORT_SIZE (1 + 8) #define BATTERY_LEVEL_MAX ((u8)255) #define BATTERY_STAT_DISCONNECT (0) #define BATTERY_STAT_CHARGING (1) #define BATTERY_STAT_FULL (2) #define QUIRK_FIX_NOTEBOOK_REPORT BIT(0) #define QUIRK_NO_INIT_REPORTS BIT(1) #define QUIRK_SKIP_INPUT_MAPPING BIT(2) #define QUIRK_IS_MULTITOUCH BIT(3) #define QUIRK_NO_CONSUMER_USAGES BIT(4) #define QUIRK_USE_KBD_BACKLIGHT BIT(5) #define QUIRK_T100_KEYBOARD BIT(6) #define QUIRK_T100CHI BIT(7) #define QUIRK_G752_KEYBOARD BIT(8) #define QUIRK_T90CHI BIT(9) #define QUIRK_MEDION_E1239T BIT(10) #define QUIRK_ROG_NKEY_KEYBOARD BIT(11) #define I2C_KEYBOARD_QUIRKS (QUIRK_FIX_NOTEBOOK_REPORT | \ QUIRK_NO_INIT_REPORTS | \ QUIRK_NO_CONSUMER_USAGES) #define I2C_TOUCHPAD_QUIRKS (QUIRK_NO_INIT_REPORTS | \ QUIRK_SKIP_INPUT_MAPPING | \ QUIRK_IS_MULTITOUCH) #define TRKID_SGN ((TRKID_MAX + 1) >> 1) struct asus_kbd_leds { struct led_classdev cdev; struct hid_device *hdev; struct work_struct work; unsigned int brightness; bool removed; }; struct asus_touchpad_info { int max_x; int max_y; int res_x; int res_y; int contact_size; int max_contacts; int report_size; }; struct asus_drvdata { unsigned long quirks; struct hid_device *hdev; struct input_dev *input; struct input_dev *tp_kbd_input; struct asus_kbd_leds *kbd_backlight; const struct asus_touchpad_info *tp; bool enable_backlight; struct power_supply *battery; struct power_supply_desc battery_desc; int battery_capacity; int battery_stat; bool battery_in_query; unsigned long battery_next_query; }; static int asus_report_battery(struct asus_drvdata *, u8 *, int); static const struct asus_touchpad_info asus_i2c_tp = { .max_x = 2794, .max_y = 1758, .contact_size = 5, .max_contacts = 5, .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, }; static const struct asus_touchpad_info asus_t100ta_tp = { .max_x = 2240, .max_y = 1120, .res_x = 30, /* units/mm */ .res_y = 27, /* units/mm */ .contact_size = 5, .max_contacts = 5, .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, }; static const struct asus_touchpad_info asus_t100ha_tp = { .max_x = 2640, .max_y = 1320, .res_x = 30, /* units/mm */ .res_y = 29, /* units/mm */ .contact_size = 5, .max_contacts = 5, .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, }; static const struct asus_touchpad_info asus_t200ta_tp = { .max_x = 3120, .max_y = 1716, .res_x = 30, /* units/mm */ .res_y = 28, /* units/mm */ .contact_size = 5, .max_contacts = 5, .report_size = 28 /* 2 byte header + 5 * 5 + 1 byte footer */, }; static const struct asus_touchpad_info asus_t100chi_tp = { .max_x = 2640, .max_y = 1320, .res_x = 31, /* units/mm */ .res_y = 29, /* units/mm */ .contact_size = 3, .max_contacts = 4, .report_size = 15 /* 2 byte header + 3 * 4 + 1 byte footer */, }; static const struct asus_touchpad_info medion_e1239t_tp = { .max_x = 2640, .max_y = 1380, .res_x = 29, /* units/mm */ .res_y = 28, /* units/mm */ .contact_size = 5, .max_contacts = 5, .report_size = 32 /* 2 byte header + 5 * 5 + 5 byte footer */, }; static void asus_report_contact_down(struct asus_drvdata *drvdat, int toolType, u8 *data) { struct input_dev *input = drvdat->input; int touch_major, pressure, x, y; x = (data[0] & CONTACT_X_MSB_MASK) << 4 | data[1]; y = drvdat->tp->max_y - ((data[0] & CONTACT_Y_MSB_MASK) << 8 | data[2]); input_report_abs(input, ABS_MT_POSITION_X, x); input_report_abs(input, ABS_MT_POSITION_Y, y); if (drvdat->tp->contact_size < 5) return; if (toolType == MT_TOOL_PALM) { touch_major = MAX_TOUCH_MAJOR; pressure = MAX_PRESSURE; } else { touch_major = (data[3] >> 4) & CONTACT_TOUCH_MAJOR_MASK; pressure = data[4] & CONTACT_PRESSURE_MASK; } input_report_abs(input, ABS_MT_TOUCH_MAJOR, touch_major); input_report_abs(input, ABS_MT_PRESSURE, pressure); } /* Required for Synaptics Palm Detection */ static void asus_report_tool_width(struct asus_drvdata *drvdat) { struct input_mt *mt = drvdat->input->mt; struct input_mt_slot *oldest; int oldid, count, i; if (drvdat->tp->contact_size < 5) return; oldest = NULL; oldid = mt->trkid; count = 0; for (i = 0; i < mt->num_slots; ++i) { struct input_mt_slot *ps = &mt->slots[i]; int id = input_mt_get_value(ps, ABS_MT_TRACKING_ID); if (id < 0) continue; if ((id - oldid) & TRKID_SGN) { oldest = ps; oldid = id; } count++; } if (oldest) { input_report_abs(drvdat->input, ABS_TOOL_WIDTH, input_mt_get_value(oldest, ABS_MT_TOUCH_MAJOR)); } } static int asus_report_input(struct asus_drvdata *drvdat, u8 *data, int size) { int i, toolType = MT_TOOL_FINGER; u8 *contactData = data + 2; if (size != drvdat->tp->report_size) return 0; for (i = 0; i < drvdat->tp->max_contacts; i++) { bool down = !!(data[1] & BIT(i+3)); if (drvdat->tp->contact_size >= 5) toolType = contactData[3] & CONTACT_TOOL_TYPE_MASK ? MT_TOOL_PALM : MT_TOOL_FINGER; input_mt_slot(drvdat->input, i); input_mt_report_slot_state(drvdat->input, toolType, down); if (down) { asus_report_contact_down(drvdat, toolType, contactData); contactData += drvdat->tp->contact_size; } } input_report_key(drvdat->input, BTN_LEFT, data[1] & BTN_LEFT_MASK); asus_report_tool_width(drvdat); input_mt_sync_frame(drvdat->input); input_sync(drvdat->input); return 1; } static int asus_e1239t_event(struct asus_drvdata *drvdat, u8 *data, int size) { if (size != 3) return 0; /* Handle broken mute key which only sends press events */ if (!drvdat->tp && data[0] == 0x02 && data[1] == 0xe2 && data[2] == 0x00) { input_report_key(drvdat->input, KEY_MUTE, 1); input_sync(drvdat->input); input_report_key(drvdat->input, KEY_MUTE, 0); input_sync(drvdat->input); return 1; } /* Handle custom touchpad toggle key which only sends press events */ if (drvdat->tp_kbd_input && data[0] == 0x05 && data[1] == 0x02 && data[2] == 0x28) { input_report_key(drvdat->tp_kbd_input, KEY_F21, 1); input_sync(drvdat->tp_kbd_input); input_report_key(drvdat->tp_kbd_input, KEY_F21, 0); input_sync(drvdat->tp_kbd_input); return 1; } return 0; } static int asus_event(struct hid_device *hdev, struct hid_field *field, struct hid_usage *usage, __s32 value) { if ((usage->hid & HID_USAGE_PAGE) == 0xff310000 && (usage->hid & HID_USAGE) != 0x00 && (usage->hid & HID_USAGE) != 0xff && !usage->type) { hid_warn(hdev, "Unmapped Asus vendor usagepage code 0x%02x\n", usage->hid & HID_USAGE); } return 0; } static int asus_raw_event(struct hid_device *hdev, struct hid_report *report, u8 *data, int size) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); if (drvdata->battery && data[0] == BATTERY_REPORT_ID) return asus_report_battery(drvdata, data, size); if (drvdata->tp && data[0] == INPUT_REPORT_ID) return asus_report_input(drvdata, data, size); if (drvdata->quirks & QUIRK_MEDION_E1239T) return asus_e1239t_event(drvdata, data, size); if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT) { /* * Skip these report ID, the device emits a continuous stream associated * with the AURA mode it is in which looks like an 'echo'. */ if (report->id == FEATURE_KBD_LED_REPORT_ID1 || report->id == FEATURE_KBD_LED_REPORT_ID2) { return -1; /* Additional report filtering */ } else if (report->id == FEATURE_KBD_REPORT_ID) { /* * G14 and G15 send these codes on some keypresses with no * discernable reason for doing so. We'll filter them out to avoid * unmapped warning messages later. */ if (data[1] == 0xea || data[1] == 0xec || data[1] == 0x02 || data[1] == 0x8a || data[1] == 0x9e) { return -1; } } if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) { /* * G713 and G733 send these codes on some keypresses, depending on * the key pressed it can trigger a shutdown event if not caught. */ if(data[0] == 0x02 && data[1] == 0x30) { return -1; } } } return 0; } static int asus_kbd_set_report(struct hid_device *hdev, u8 *buf, size_t buf_size) { unsigned char *dmabuf; int ret; dmabuf = kmemdup(buf, buf_size, GFP_KERNEL); if (!dmabuf) return -ENOMEM; /* * The report ID should be set from the incoming buffer due to LED and key * interfaces having different pages */ ret = hid_hw_raw_request(hdev, buf[0], dmabuf, buf_size, HID_FEATURE_REPORT, HID_REQ_SET_REPORT); kfree(dmabuf); return ret; } static int asus_kbd_init(struct hid_device *hdev) { u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54, 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 }; int ret; ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); if (ret < 0) hid_err(hdev, "Asus failed to send init command: %d\n", ret); return ret; } static int asus_kbd_get_functions(struct hid_device *hdev, unsigned char *kbd_func) { u8 buf[] = { FEATURE_KBD_REPORT_ID, 0x05, 0x20, 0x31, 0x00, 0x08 }; u8 *readbuf; int ret; ret = asus_kbd_set_report(hdev, buf, sizeof(buf)); if (ret < 0) { hid_err(hdev, "Asus failed to send configuration command: %d\n", ret); return ret; } readbuf = kzalloc(FEATURE_KBD_REPORT_SIZE, GFP_KERNEL); if (!readbuf) return -ENOMEM; ret = hid_hw_raw_request(hdev, FEATURE_KBD_REPORT_ID, readbuf, FEATURE_KBD_REPORT_SIZE, HID_FEATURE_REPORT, HID_REQ_GET_REPORT); if (ret < 0) { hid_err(hdev, "Asus failed to request functions: %d\n", ret); kfree(readbuf); return ret; } *kbd_func = readbuf[6]; kfree(readbuf); return ret; } static int rog_nkey_led_init(struct hid_device *hdev) { u8 buf_init_start[] = { FEATURE_KBD_LED_REPORT_ID1, 0xB9 }; u8 buf_init2[] = { FEATURE_KBD_LED_REPORT_ID1, 0x41, 0x53, 0x55, 0x53, 0x20, 0x54, 0x65, 0x63, 0x68, 0x2e, 0x49, 0x6e, 0x63, 0x2e, 0x00 }; u8 buf_init3[] = { FEATURE_KBD_LED_REPORT_ID1, 0x05, 0x20, 0x31, 0x00, 0x08 }; int ret; hid_info(hdev, "Asus initialise N-KEY Device"); /* The first message is an init start */ ret = asus_kbd_set_report(hdev, buf_init_start, sizeof(buf_init_start)); if (ret < 0) { hid_warn(hdev, "Asus failed to send init start command: %d\n", ret); return ret; } /* Followed by a string */ ret = asus_kbd_set_report(hdev, buf_init2, sizeof(buf_init2)); if (ret < 0) { hid_warn(hdev, "Asus failed to send init command 1.0: %d\n", ret); return ret; } /* Followed by a string */ ret = asus_kbd_set_report(hdev, buf_init3, sizeof(buf_init3)); if (ret < 0) { hid_warn(hdev, "Asus failed to send init command 1.1: %d\n", ret); return ret; } /* begin second report ID with same data */ buf_init2[0] = FEATURE_KBD_LED_REPORT_ID2; buf_init3[0] = FEATURE_KBD_LED_REPORT_ID2; ret = asus_kbd_set_report(hdev, buf_init2, sizeof(buf_init2)); if (ret < 0) { hid_warn(hdev, "Asus failed to send init command 2.0: %d\n", ret); return ret; } ret = asus_kbd_set_report(hdev, buf_init3, sizeof(buf_init3)); if (ret < 0) hid_warn(hdev, "Asus failed to send init command 2.1: %d\n", ret); return ret; } static void asus_kbd_backlight_set(struct led_classdev *led_cdev, enum led_brightness brightness) { struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, cdev); led->brightness = brightness; schedule_work(&led->work); } static enum led_brightness asus_kbd_backlight_get(struct led_classdev *led_cdev) { struct asus_kbd_leds *led = container_of(led_cdev, struct asus_kbd_leds, cdev); return led->brightness; } static void asus_kbd_backlight_work(struct work_struct *work) { struct asus_kbd_leds *led = container_of(work, struct asus_kbd_leds, work); u8 buf[] = { FEATURE_KBD_REPORT_ID, 0xba, 0xc5, 0xc4, 0x00 }; int ret; if (led->removed) return; buf[4] = led->brightness; ret = asus_kbd_set_report(led->hdev, buf, sizeof(buf)); if (ret < 0) hid_err(led->hdev, "Asus failed to set keyboard backlight: %d\n", ret); } /* WMI-based keyboard backlight LED control (via asus-wmi driver) takes * precedence. We only activate HID-based backlight control when the * WMI control is not available. */ static bool asus_kbd_wmi_led_control_present(struct hid_device *hdev) { u32 value; int ret; if (!IS_ENABLED(CONFIG_ASUS_WMI)) return false; ret = asus_wmi_evaluate_method(ASUS_WMI_METHODID_DSTS, ASUS_WMI_DEVID_KBD_BACKLIGHT, 0, &value); hid_dbg(hdev, "WMI backlight check: rc %d value %x", ret, value); if (ret) return false; return !!(value & ASUS_WMI_DSTS_PRESENCE_BIT); } static int asus_kbd_register_leds(struct hid_device *hdev) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); unsigned char kbd_func; int ret; if (drvdata->quirks & QUIRK_ROG_NKEY_KEYBOARD) { ret = rog_nkey_led_init(hdev); if (ret < 0) return ret; } else { /* Initialize keyboard */ ret = asus_kbd_init(hdev); if (ret < 0) return ret; /* Get keyboard functions */ ret = asus_kbd_get_functions(hdev, &kbd_func); if (ret < 0) return ret; /* Check for backlight support */ if (!(kbd_func & SUPPORT_KBD_BACKLIGHT)) return -ENODEV; } drvdata->kbd_backlight = devm_kzalloc(&hdev->dev, sizeof(struct asus_kbd_leds), GFP_KERNEL); if (!drvdata->kbd_backlight) return -ENOMEM; drvdata->kbd_backlight->removed = false; drvdata->kbd_backlight->brightness = 0; drvdata->kbd_backlight->hdev = hdev; drvdata->kbd_backlight->cdev.name = "asus::kbd_backlight"; drvdata->kbd_backlight->cdev.max_brightness = 3; drvdata->kbd_backlight->cdev.brightness_set = asus_kbd_backlight_set; drvdata->kbd_backlight->cdev.brightness_get = asus_kbd_backlight_get; INIT_WORK(&drvdata->kbd_backlight->work, asus_kbd_backlight_work); ret = devm_led_classdev_register(&hdev->dev, &drvdata->kbd_backlight->cdev); if (ret < 0) { /* No need to have this still around */ devm_kfree(&hdev->dev, drvdata->kbd_backlight); } return ret; } /* * [0] REPORT_ID (same value defined in report descriptor) * [1] rest battery level. range [0..255] * [2]..[7] Bluetooth hardware address (MAC address) * [8] charging status * = 0 : AC offline / discharging * = 1 : AC online / charging * = 2 : AC online / fully charged */ static int asus_parse_battery(struct asus_drvdata *drvdata, u8 *data, int size) { u8 sts; u8 lvl; int val; lvl = data[1]; sts = data[8]; drvdata->battery_capacity = ((int)lvl * 100) / (int)BATTERY_LEVEL_MAX; switch (sts) { case BATTERY_STAT_CHARGING: val = POWER_SUPPLY_STATUS_CHARGING; break; case BATTERY_STAT_FULL: val = POWER_SUPPLY_STATUS_FULL; break; case BATTERY_STAT_DISCONNECT: default: val = POWER_SUPPLY_STATUS_DISCHARGING; break; } drvdata->battery_stat = val; return 0; } static int asus_report_battery(struct asus_drvdata *drvdata, u8 *data, int size) { /* notify only the autonomous event by device */ if ((drvdata->battery_in_query == false) && (size == BATTERY_REPORT_SIZE)) power_supply_changed(drvdata->battery); return 0; } static int asus_battery_query(struct asus_drvdata *drvdata) { u8 *buf; int ret = 0; buf = kmalloc(BATTERY_REPORT_SIZE, GFP_KERNEL); if (!buf) return -ENOMEM; drvdata->battery_in_query = true; ret = hid_hw_raw_request(drvdata->hdev, BATTERY_REPORT_ID, buf, BATTERY_REPORT_SIZE, HID_INPUT_REPORT, HID_REQ_GET_REPORT); drvdata->battery_in_query = false; if (ret == BATTERY_REPORT_SIZE) ret = asus_parse_battery(drvdata, buf, BATTERY_REPORT_SIZE); else ret = -ENODATA; kfree(buf); return ret; } static enum power_supply_property asus_battery_props[] = { POWER_SUPPLY_PROP_STATUS, POWER_SUPPLY_PROP_PRESENT, POWER_SUPPLY_PROP_CAPACITY, POWER_SUPPLY_PROP_SCOPE, POWER_SUPPLY_PROP_MODEL_NAME, }; #define QUERY_MIN_INTERVAL (60 * HZ) /* 60[sec] */ static int asus_battery_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) { struct asus_drvdata *drvdata = power_supply_get_drvdata(psy); int ret = 0; switch (psp) { case POWER_SUPPLY_PROP_STATUS: case POWER_SUPPLY_PROP_CAPACITY: if (time_before(drvdata->battery_next_query, jiffies)) { drvdata->battery_next_query = jiffies + QUERY_MIN_INTERVAL; ret = asus_battery_query(drvdata); if (ret) return ret; } if (psp == POWER_SUPPLY_PROP_STATUS) val->intval = drvdata->battery_stat; else val->intval = drvdata->battery_capacity; break; case POWER_SUPPLY_PROP_PRESENT: val->intval = 1; break; case POWER_SUPPLY_PROP_SCOPE: val->intval = POWER_SUPPLY_SCOPE_DEVICE; break; case POWER_SUPPLY_PROP_MODEL_NAME: val->strval = drvdata->hdev->name; break; default: ret = -EINVAL; break; } return ret; } static int asus_battery_probe(struct hid_device *hdev) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); struct power_supply_config pscfg = { .drv_data = drvdata }; int ret = 0; drvdata->battery_capacity = 0; drvdata->battery_stat = POWER_SUPPLY_STATUS_UNKNOWN; drvdata->battery_in_query = false; drvdata->battery_desc.properties = asus_battery_props; drvdata->battery_desc.num_properties = ARRAY_SIZE(asus_battery_props); drvdata->battery_desc.get_property = asus_battery_get_property; drvdata->battery_desc.type = POWER_SUPPLY_TYPE_BATTERY; drvdata->battery_desc.use_for_apm = 0; drvdata->battery_desc.name = devm_kasprintf(&hdev->dev, GFP_KERNEL, "asus-keyboard-%s-battery", strlen(hdev->uniq) ? hdev->uniq : dev_name(&hdev->dev)); if (!drvdata->battery_desc.name) return -ENOMEM; drvdata->battery_next_query = jiffies; drvdata->battery = devm_power_supply_register(&hdev->dev, &(drvdata->battery_desc), &pscfg); if (IS_ERR(drvdata->battery)) { ret = PTR_ERR(drvdata->battery); drvdata->battery = NULL; hid_err(hdev, "Unable to register battery device\n"); return ret; } power_supply_powers(drvdata->battery, &hdev->dev); return ret; } static int asus_input_configured(struct hid_device *hdev, struct hid_input *hi) { struct input_dev *input = hi->input; struct asus_drvdata *drvdata = hid_get_drvdata(hdev); /* T100CHI uses MULTI_INPUT, bind the touchpad to the mouse hid_input */ if (drvdata->quirks & QUIRK_T100CHI && hi->report->id != T100CHI_MOUSE_REPORT_ID) return 0; /* Handle MULTI_INPUT on E1239T mouse/touchpad USB interface */ if (drvdata->tp && (drvdata->quirks & QUIRK_MEDION_E1239T)) { switch (hi->report->id) { case E1239T_TP_TOGGLE_REPORT_ID: input_set_capability(input, EV_KEY, KEY_F21); input->name = "Asus Touchpad Keys"; drvdata->tp_kbd_input = input; return 0; case INPUT_REPORT_ID: break; /* Touchpad report, handled below */ default: return 0; /* Ignore other reports */ } } if (drvdata->tp) { int ret; input_set_abs_params(input, ABS_MT_POSITION_X, 0, drvdata->tp->max_x, 0, 0); input_set_abs_params(input, ABS_MT_POSITION_Y, 0, drvdata->tp->max_y, 0, 0); input_abs_set_res(input, ABS_MT_POSITION_X, drvdata->tp->res_x); input_abs_set_res(input, ABS_MT_POSITION_Y, drvdata->tp->res_y); if (drvdata->tp->contact_size >= 5) { input_set_abs_params(input, ABS_TOOL_WIDTH, 0, MAX_TOUCH_MAJOR, 0, 0); input_set_abs_params(input, ABS_MT_TOUCH_MAJOR, 0, MAX_TOUCH_MAJOR, 0, 0); input_set_abs_params(input, ABS_MT_PRESSURE, 0, MAX_PRESSURE, 0, 0); } __set_bit(BTN_LEFT, input->keybit); __set_bit(INPUT_PROP_BUTTONPAD, input->propbit); ret = input_mt_init_slots(input, drvdata->tp->max_contacts, INPUT_MT_POINTER); if (ret) { hid_err(hdev, "Asus input mt init slots failed: %d\n", ret); return ret; } } drvdata->input = input; if (drvdata->enable_backlight && !asus_kbd_wmi_led_control_present(hdev) && asus_kbd_register_leds(hdev)) hid_warn(hdev, "Failed to initialize backlight.\n"); return 0; } #define asus_map_key_clear(c) hid_map_usage_clear(hi, usage, bit, \ max, EV_KEY, (c)) static int asus_input_mapping(struct hid_device *hdev, struct hid_input *hi, struct hid_field *field, struct hid_usage *usage, unsigned long **bit, int *max) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); if (drvdata->quirks & QUIRK_SKIP_INPUT_MAPPING) { /* Don't map anything from the HID report. * We do it all manually in asus_input_configured */ return -1; } /* * Ignore a bunch of bogus collections in the T100CHI descriptor. * This avoids a bunch of non-functional hid_input devices getting * created because of the T100CHI using HID_QUIRK_MULTI_INPUT. */ if ((drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) && (field->application == (HID_UP_GENDESK | 0x0080) || field->application == HID_GD_MOUSE || usage->hid == (HID_UP_GENDEVCTRLS | 0x0024) || usage->hid == (HID_UP_GENDEVCTRLS | 0x0025) || usage->hid == (HID_UP_GENDEVCTRLS | 0x0026))) return -1; /* ASUS-specific keyboard hotkeys and led backlight */ if ((usage->hid & HID_USAGE_PAGE) == HID_UP_ASUSVENDOR) { switch (usage->hid & HID_USAGE) { case 0x10: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; case 0x20: asus_map_key_clear(KEY_BRIGHTNESSUP); break; case 0x35: asus_map_key_clear(KEY_DISPLAY_OFF); break; case 0x6c: asus_map_key_clear(KEY_SLEEP); break; case 0x7c: asus_map_key_clear(KEY_MICMUTE); break; case 0x82: asus_map_key_clear(KEY_CAMERA); break; case 0x88: asus_map_key_clear(KEY_RFKILL); break; case 0xb5: asus_map_key_clear(KEY_CALC); break; case 0xc4: asus_map_key_clear(KEY_KBDILLUMUP); break; case 0xc5: asus_map_key_clear(KEY_KBDILLUMDOWN); break; /* ASUS touchpad toggle */ case 0x6b: asus_map_key_clear(KEY_F21); break; /* ROG key */ case 0x38: asus_map_key_clear(KEY_PROG1); break; /* Fn+C ASUS Splendid */ case 0xba: asus_map_key_clear(KEY_PROG2); break; /* Fn+Space Power4Gear Hybrid */ case 0x5c: asus_map_key_clear(KEY_PROG3); break; /* Fn+F5 "fan" symbol on FX503VD */ case 0x99: asus_map_key_clear(KEY_PROG4); break; /* Fn+F5 "fan" symbol on N-Key keyboard */ case 0xae: asus_map_key_clear(KEY_PROG4); break; /* Fn+Ret "Calc" symbol on N-Key keyboard */ case 0x92: asus_map_key_clear(KEY_CALC); break; /* Fn+Left Aura mode previous on N-Key keyboard */ case 0xb2: asus_map_key_clear(KEY_PROG2); break; /* Fn+Right Aura mode next on N-Key keyboard */ case 0xb3: asus_map_key_clear(KEY_PROG3); break; default: /* ASUS lazily declares 256 usages, ignore the rest, * as some make the keyboard appear as a pointer device. */ return -1; } /* * Check and enable backlight only on devices with UsagePage == * 0xff31 to avoid initializing the keyboard firmware multiple * times on devices with multiple HID descriptors but same * PID/VID. */ if (drvdata->quirks & QUIRK_USE_KBD_BACKLIGHT) drvdata->enable_backlight = true; set_bit(EV_REP, hi->input->evbit); return 1; } if ((usage->hid & HID_USAGE_PAGE) == HID_UP_MSVENDOR) { switch (usage->hid & HID_USAGE) { case 0xff01: asus_map_key_clear(BTN_1); break; case 0xff02: asus_map_key_clear(BTN_2); break; case 0xff03: asus_map_key_clear(BTN_3); break; case 0xff04: asus_map_key_clear(BTN_4); break; case 0xff05: asus_map_key_clear(BTN_5); break; case 0xff06: asus_map_key_clear(BTN_6); break; case 0xff07: asus_map_key_clear(BTN_7); break; case 0xff08: asus_map_key_clear(BTN_8); break; case 0xff09: asus_map_key_clear(BTN_9); break; case 0xff0a: asus_map_key_clear(BTN_A); break; case 0xff0b: asus_map_key_clear(BTN_B); break; case 0x00f1: asus_map_key_clear(KEY_WLAN); break; case 0x00f2: asus_map_key_clear(KEY_BRIGHTNESSDOWN); break; case 0x00f3: asus_map_key_clear(KEY_BRIGHTNESSUP); break; case 0x00f4: asus_map_key_clear(KEY_DISPLAY_OFF); break; case 0x00f7: asus_map_key_clear(KEY_CAMERA); break; case 0x00f8: asus_map_key_clear(KEY_PROG1); break; default: return 0; } set_bit(EV_REP, hi->input->evbit); return 1; } if (drvdata->quirks & QUIRK_NO_CONSUMER_USAGES && (usage->hid & HID_USAGE_PAGE) == HID_UP_CONSUMER) { switch (usage->hid & HID_USAGE) { case 0xe2: /* Mute */ case 0xe9: /* Volume up */ case 0xea: /* Volume down */ return 0; default: /* Ignore dummy Consumer usages which make the * keyboard incorrectly appear as a pointer device. */ return -1; } } /* * The mute button is broken and only sends press events, we * deal with this in our raw_event handler, so do not map it. */ if ((drvdata->quirks & QUIRK_MEDION_E1239T) && usage->hid == (HID_UP_CONSUMER | 0xe2)) { input_set_capability(hi->input, EV_KEY, KEY_MUTE); return -1; } return 0; } static int asus_start_multitouch(struct hid_device *hdev) { int ret; static const unsigned char buf[] = { FEATURE_REPORT_ID, 0x00, 0x03, 0x01, 0x00 }; unsigned char *dmabuf = kmemdup(buf, sizeof(buf), GFP_KERNEL); if (!dmabuf) { ret = -ENOMEM; hid_err(hdev, "Asus failed to alloc dma buf: %d\n", ret); return ret; } ret = hid_hw_raw_request(hdev, dmabuf[0], dmabuf, sizeof(buf), HID_FEATURE_REPORT, HID_REQ_SET_REPORT); kfree(dmabuf); if (ret != sizeof(buf)) { hid_err(hdev, "Asus failed to start multitouch: %d\n", ret); return ret; } return 0; } static int __maybe_unused asus_reset_resume(struct hid_device *hdev) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); if (drvdata->tp) return asus_start_multitouch(hdev); return 0; } static int asus_probe(struct hid_device *hdev, const struct hid_device_id *id) { int ret; struct asus_drvdata *drvdata; drvdata = devm_kzalloc(&hdev->dev, sizeof(*drvdata), GFP_KERNEL); if (drvdata == NULL) { hid_err(hdev, "Can't alloc Asus descriptor\n"); return -ENOMEM; } hid_set_drvdata(hdev, drvdata); drvdata->quirks = id->driver_data; /* * T90CHI's keyboard dock returns same ID values as T100CHI's dock. * Thus, identify T90CHI dock with product name string. */ if (strstr(hdev->name, "T90CHI")) { drvdata->quirks &= ~QUIRK_T100CHI; drvdata->quirks |= QUIRK_T90CHI; } if (drvdata->quirks & QUIRK_IS_MULTITOUCH) drvdata->tp = &asus_i2c_tp; if ((drvdata->quirks & QUIRK_T100_KEYBOARD) && hid_is_using_ll_driver(hdev, &usb_hid_driver)) { struct usb_interface *intf = to_usb_interface(hdev->dev.parent); if (intf->altsetting->desc.bInterfaceNumber == T100_TPAD_INTF) { drvdata->quirks = QUIRK_SKIP_INPUT_MAPPING; /* * The T100HA uses the same USB-ids as the T100TAF and * the T200TA uses the same USB-ids as the T100TA, while * both have different max x/y values as the T100TA[F]. */ if (dmi_match(DMI_PRODUCT_NAME, "T100HAN")) drvdata->tp = &asus_t100ha_tp; else if (dmi_match(DMI_PRODUCT_NAME, "T200TA")) drvdata->tp = &asus_t200ta_tp; else drvdata->tp = &asus_t100ta_tp; } } if (drvdata->quirks & QUIRK_T100CHI) { /* * All functionality is on a single HID interface and for * userspace the touchpad must be a separate input_dev. */ hdev->quirks |= HID_QUIRK_MULTI_INPUT; drvdata->tp = &asus_t100chi_tp; } if ((drvdata->quirks & QUIRK_MEDION_E1239T) && hid_is_using_ll_driver(hdev, &usb_hid_driver)) { struct usb_host_interface *alt = to_usb_interface(hdev->dev.parent)->altsetting; if (alt->desc.bInterfaceNumber == MEDION_E1239T_TPAD_INTF) { /* For separate input-devs for tp and tp toggle key */ hdev->quirks |= HID_QUIRK_MULTI_INPUT; drvdata->quirks |= QUIRK_SKIP_INPUT_MAPPING; drvdata->tp = &medion_e1239t_tp; } } if (drvdata->quirks & QUIRK_NO_INIT_REPORTS) hdev->quirks |= HID_QUIRK_NO_INIT_REPORTS; drvdata->hdev = hdev; if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) { ret = asus_battery_probe(hdev); if (ret) { hid_err(hdev, "Asus hid battery_probe failed: %d\n", ret); return ret; } } ret = hid_parse(hdev); if (ret) { hid_err(hdev, "Asus hid parse failed: %d\n", ret); return ret; } ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT); if (ret) { hid_err(hdev, "Asus hw start failed: %d\n", ret); return ret; } if (!drvdata->input) { hid_err(hdev, "Asus input not registered\n"); ret = -ENOMEM; goto err_stop_hw; } if (drvdata->tp) { drvdata->input->name = "Asus TouchPad"; } else { drvdata->input->name = "Asus Keyboard"; } if (drvdata->tp) { ret = asus_start_multitouch(hdev); if (ret) goto err_stop_hw; } return 0; err_stop_hw: hid_hw_stop(hdev); return ret; } static void asus_remove(struct hid_device *hdev) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); if (drvdata->kbd_backlight) { drvdata->kbd_backlight->removed = true; cancel_work_sync(&drvdata->kbd_backlight->work); } hid_hw_stop(hdev); } static const __u8 asus_g752_fixed_rdesc[] = { 0x19, 0x00, /* Usage Minimum (0x00) */ 0x2A, 0xFF, 0x00, /* Usage Maximum (0xFF) */ }; static __u8 *asus_report_fixup(struct hid_device *hdev, __u8 *rdesc, unsigned int *rsize) { struct asus_drvdata *drvdata = hid_get_drvdata(hdev); if (drvdata->quirks & QUIRK_FIX_NOTEBOOK_REPORT && *rsize >= 56 && rdesc[54] == 0x25 && rdesc[55] == 0x65) { hid_info(hdev, "Fixing up Asus notebook report descriptor\n"); rdesc[55] = 0xdd; } /* For the T100TA/T200TA keyboard dock */ if (drvdata->quirks & QUIRK_T100_KEYBOARD && (*rsize == 76 || *rsize == 101) && rdesc[73] == 0x81 && rdesc[74] == 0x01) { hid_info(hdev, "Fixing up Asus T100 keyb report descriptor\n"); rdesc[74] &= ~HID_MAIN_ITEM_CONSTANT; } /* For the T100CHI/T90CHI keyboard dock */ if (drvdata->quirks & (QUIRK_T100CHI | QUIRK_T90CHI)) { int rsize_orig; int offs; if (drvdata->quirks & QUIRK_T100CHI) { rsize_orig = 403; offs = 388; } else { rsize_orig = 306; offs = 291; } /* * Change Usage (76h) to Usage Minimum (00h), Usage Maximum * (FFh) and clear the flags in the Input() byte. * Note the descriptor has a bogus 0 byte at the end so we * only need 1 extra byte. */ if (*rsize == rsize_orig && rdesc[offs] == 0x09 && rdesc[offs + 1] == 0x76) { *rsize = rsize_orig + 1; rdesc = kmemdup(rdesc, *rsize, GFP_KERNEL); if (!rdesc) return NULL; hid_info(hdev, "Fixing up %s keyb report descriptor\n", drvdata->quirks & QUIRK_T100CHI ? "T100CHI" : "T90CHI"); memmove(rdesc + offs + 4, rdesc + offs + 2, 12); rdesc[offs] = 0x19; rdesc[offs + 1] = 0x00; rdesc[offs + 2] = 0x29; rdesc[offs + 3] = 0xff; rdesc[offs + 14] = 0x00; } } if (drvdata->quirks & QUIRK_G752_KEYBOARD && *rsize == 75 && rdesc[61] == 0x15 && rdesc[62] == 0x00) { /* report is missing usage mninum and maximum */ __u8 *new_rdesc; size_t new_size = *rsize + sizeof(asus_g752_fixed_rdesc); new_rdesc = devm_kzalloc(&hdev->dev, new_size, GFP_KERNEL); if (new_rdesc == NULL) return rdesc; hid_info(hdev, "Fixing up Asus G752 keyb report descriptor\n"); /* copy the valid part */ memcpy(new_rdesc, rdesc, 61); /* insert missing part */ memcpy(new_rdesc + 61, asus_g752_fixed_rdesc, sizeof(asus_g752_fixed_rdesc)); /* copy remaining data */ memcpy(new_rdesc + 61 + sizeof(asus_g752_fixed_rdesc), rdesc + 61, *rsize - 61); *rsize = new_size; rdesc = new_rdesc; } return rdesc; } static const struct hid_device_id asus_devices[] = { { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_KEYBOARD), I2C_KEYBOARD_QUIRKS}, { HID_I2C_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_I2C_TOUCHPAD), I2C_TOUCHPAD_QUIRKS }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD1), QUIRK_USE_KBD_BACKLIGHT }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_KEYBOARD3), QUIRK_G752_KEYBOARD }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_FX503VD_KEYBOARD), QUIRK_USE_KBD_BACKLIGHT }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD), QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_ROG_NKEY_KEYBOARD2), QUIRK_USE_KBD_BACKLIGHT | QUIRK_ROG_NKEY_KEYBOARD }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100TA_KEYBOARD), QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, { HID_USB_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100TAF_KEYBOARD), QUIRK_T100_KEYBOARD | QUIRK_NO_CONSUMER_USAGES }, { HID_USB_DEVICE(USB_VENDOR_ID_CHICONY, USB_DEVICE_ID_ASUS_AK1D) }, { HID_USB_DEVICE(USB_VENDOR_ID_TURBOX, USB_DEVICE_ID_ASUS_MD_5110) }, { HID_USB_DEVICE(USB_VENDOR_ID_JESS, USB_DEVICE_ID_ASUS_MD_5112) }, { HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T100CHI_KEYBOARD), QUIRK_T100CHI }, { HID_USB_DEVICE(USB_VENDOR_ID_ITE, USB_DEVICE_ID_ITE_MEDION_E1239T), QUIRK_MEDION_E1239T }, /* * Note bind to the HID_GROUP_GENERIC group, so that we only bind to the keyboard * part, while letting hid-multitouch.c handle the touchpad. */ { HID_DEVICE(BUS_USB, HID_GROUP_GENERIC, USB_VENDOR_ID_ASUSTEK, USB_DEVICE_ID_ASUSTEK_T101HA_KEYBOARD) }, { } }; MODULE_DEVICE_TABLE(hid, asus_devices); static struct hid_driver asus_driver = { .name = "asus", .id_table = asus_devices, .report_fixup = asus_report_fixup, .probe = asus_probe, .remove = asus_remove, .input_mapping = asus_input_mapping, .input_configured = asus_input_configured, #ifdef CONFIG_PM .reset_resume = asus_reset_resume, #endif .event = asus_event, .raw_event = asus_raw_event }; module_hid_driver(asus_driver); MODULE_LICENSE("GPL");