1 // SPDX-License-Identifier: GPL-2.0+
12 #include <linux/input/sparse-keymap.h>
36 	/* 1: LSuper (Page 0x07, usage 0xE3) -- unclear what to do */
37 	/* 2: Toggle SW_ROTATE_LOCK -- easy to implement if seen in wild */
46 	/* 13 has two different meanings in the spec -- ignore it. */
54 	/* 27: wake -- needs special handling */
106  * Some convertible use the intel-hid ACPI interface to report SW_TABLET_MODE,
115 			DMI_MATCH(DMI_PRODUCT_NAME, "HP Spectre x360 Convertible 15-df0xxx"),
147 #define HID_EVENT_FILTER_UUID	"eeec56b3-4442-408f-a792-4edd4d758054"
206 		acpi_handle_debug(handle, "Exec DSM Fn code: %d[%s] success\n",  in intel_hid_execute_method()
241 		*result = obj->integer.value;  in intel_hid_evaluate_method()
243 				  "Eval DSM Fn code: %d[%s] results: 0x%llx\n",  in intel_hid_evaluate_method()
266 		switch (obj->buffer.length) {  in intel_hid_init_dsm()
269 			intel_hid_dsm_fn_mask = *(u16 *)obj->buffer.pointer;  in intel_hid_init_dsm()
272 			intel_hid_dsm_fn_mask = *obj->buffer.pointer;  in intel_hid_init_dsm()
290 	/* Enable|disable features - power button is always enabled */  in intel_hid_set_enable()
295 		return -EIO;  in intel_hid_set_enable()
308 	if (!priv->array)  in intel_button_array_enable()
318 	/* Enable|disable features - power button is always enabled */  in intel_button_array_enable()
329 		priv->wakeup_mode = true;  in intel_hid_pm_prepare()
338 	priv->wakeup_mode = false;  in intel_hid_pm_complete()
374 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in intel_hid_input_setup()
377 	priv->input_dev = devm_input_allocate_device(&device->dev);  in intel_hid_input_setup()
378 	if (!priv->input_dev)  in intel_hid_input_setup()
379 		return -ENOMEM;  in intel_hid_input_setup()
381 	ret = sparse_keymap_setup(priv->input_dev, intel_hid_keymap, NULL);  in intel_hid_input_setup()
385 	priv->input_dev->name = "Intel HID events";  in intel_hid_input_setup()
386 	priv->input_dev->id.bustype = BUS_HOST;  in intel_hid_input_setup()
388 	return input_register_device(priv->input_dev);  in intel_hid_input_setup()
393 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in intel_button_array_input_setup()
397 	priv->array = devm_input_allocate_device(&device->dev);  in intel_button_array_input_setup()
398 	if (!priv->array)  in intel_button_array_input_setup()
399 		return -ENOMEM;  in intel_button_array_input_setup()
401 	ret = sparse_keymap_setup(priv->array, intel_array_keymap, NULL);  in intel_button_array_input_setup()
405 	priv->array->name = "Intel HID 5 button array";  in intel_button_array_input_setup()
406 	priv->array->id.bustype = BUS_HOST;  in intel_button_array_input_setup()
408 	return input_register_device(priv->array);  in intel_button_array_input_setup()
413 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in intel_hid_switches_setup()
416 	priv->switches = devm_input_allocate_device(&device->dev);  in intel_hid_switches_setup()
417 	if (!priv->switches)  in intel_hid_switches_setup()
418 		return -ENOMEM;  in intel_hid_switches_setup()
420 	__set_bit(EV_SW, priv->switches->evbit);  in intel_hid_switches_setup()
421 	__set_bit(SW_TABLET_MODE, priv->switches->swbit);  in intel_hid_switches_setup()
423 	priv->switches->name = "Intel HID switches";  in intel_hid_switches_setup()
424 	priv->switches->id.bustype = BUS_HOST;  in intel_hid_switches_setup()
425 	return input_register_device(priv->switches);  in intel_hid_switches_setup()
430 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in report_tablet_mode_state()
431 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in report_tablet_mode_state()
439 	input_report_switch(priv->switches, SW_TABLET_MODE, m);  in report_tablet_mode_state()
440 	input_sync(priv->switches);  in report_tablet_mode_state()
465 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in notify_handler()
474 	if (!priv->switches && priv->auto_add_switch && (event == 0xcc || event == 0xcd)) {  in notify_handler()
475 		dev_info(&device->dev, "switch event received, enable switches supports\n");  in notify_handler()
481 	if (priv->wakeup_mode) {  in notify_handler()
483 		 * Needed for wakeup from suspend-to-idle to work on some  in notify_handler()
484 		 * platforms that don't expose the 5-button array, but still  in notify_handler()
492 		 * Some devices send (duplicate) tablet-mode events when moved  in notify_handler()
499 			report_tablet_mode_event(priv->switches, event);  in notify_handler()
503 		/* Wake up on 5-button array events only. */  in notify_handler()
504 		if (event == 0xc0 || !priv->array)  in notify_handler()
507 		if (!sparse_keymap_entry_from_scancode(priv->array, event)) {  in notify_handler()
508 			dev_info(&device->dev, "unknown event 0x%x\n", event);  in notify_handler()
513 		pm_wakeup_hard_event(&device->dev);  in notify_handler()
520 	 * the 5-button array, but still send notifies with power button  in notify_handler()
525 	if (!priv->array) {  in notify_handler()
527 			input_report_key(priv->input_dev, KEY_POWER, 1);  in notify_handler()
528 			input_sync(priv->input_dev);  in notify_handler()
533 			input_report_key(priv->input_dev, KEY_POWER, 0);  in notify_handler()
534 			input_sync(priv->input_dev);  in notify_handler()
539 	if (report_tablet_mode_event(priv->switches, event))  in notify_handler()
544 		if (!priv->array ||  in notify_handler()
545 		    !sparse_keymap_report_event(priv->array, event, 1, true))  in notify_handler()
546 			dev_dbg(&device->dev, "unknown event 0x%x\n", event);  in notify_handler()
552 		dev_warn(&device->dev, "failed to get event index\n");  in notify_handler()
556 	if (!sparse_keymap_report_event(priv->input_dev, ev_index, 1, true))  in notify_handler()
557 		dev_dbg(&device->dev, "unknown event index 0x%llx\n",  in notify_handler()
563 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in button_array_present()
587 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_hid_probe()
596 		dev_warn(&device->dev, "failed to read mode\n");  in intel_hid_probe()
597 		return -ENODEV;  in intel_hid_probe()
606 		dev_info(&device->dev, "platform is not in simple mode\n");  in intel_hid_probe()
607 		return -ENODEV;  in intel_hid_probe()
610 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in intel_hid_probe()
612 		return -ENOMEM;  in intel_hid_probe()
613 	dev_set_drvdata(&device->dev, priv);  in intel_hid_probe()
616 	priv->auto_add_switch = dmi_check_system(dmi_auto_add_switch) && !dual_accel_detect();  in intel_hid_probe()
626 		dev_info(&device->dev, "platform supports 5 button array\n");  in intel_hid_probe()
634 		dev_info(&device->dev, "platform supports switches\n");  in intel_hid_probe()
647 		return -EBUSY;  in intel_hid_probe()
649 	err = intel_hid_set_enable(&device->dev, true);  in intel_hid_probe()
653 	if (priv->array) {  in intel_hid_probe()
656 		intel_button_array_enable(&device->dev, true);  in intel_hid_probe()
661 			dev_warn(&device->dev,  in intel_hid_probe()
666 	device_init_wakeup(&device->dev, true);  in intel_hid_probe()
683 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_hid_remove()
685 	device_init_wakeup(&device->dev, false);  in intel_hid_remove()
687 	intel_hid_set_enable(&device->dev, false);  in intel_hid_remove()
688 	intel_button_array_enable(&device->dev, false);  in intel_hid_remove()
699 		.name = "intel-hid",
729 			dev_info(&dev->dev,  in check_acpi_dev()
730 				 "intel-hid: created platform device\n");  in check_acpi_dev()