1 // SPDX-License-Identifier: GPL-2.0+
12 #include <linux/input/sparse-keymap.h>
30 	/* 1: LSuper (Page 0x07, usage 0xE3) -- unclear what to do */
31 	/* 2: Toggle SW_ROTATE_LOCK -- easy to implement if seen in wild */
40 	/* 13 has two different meanings in the spec -- ignore it. */
48 	/* 27: wake -- needs special handling */
105 #define HID_EVENT_FILTER_UUID	"eeec56b3-4442-408f-a792-4edd4d758054"
164 		acpi_handle_debug(handle, "Exec DSM Fn code: %d[%s] success\n",  in intel_hid_execute_method()
199 		*result = obj->integer.value;  in intel_hid_evaluate_method()
201 				  "Eval DSM Fn code: %d[%s] results: 0x%llx\n",  in intel_hid_evaluate_method()
224 		intel_hid_dsm_fn_mask = *obj->buffer.pointer;  in intel_hid_init_dsm()
236 	/* Enable|disable features - power button is always enabled */  in intel_hid_set_enable()
241 		return -EIO;  in intel_hid_set_enable()
254 	if (!priv->array)  in intel_button_array_enable()
264 	/* Enable|disable features - power button is always enabled */  in intel_button_array_enable()
275 		priv->wakeup_mode = true;  in intel_hid_pm_prepare()
284 	priv->wakeup_mode = false;  in intel_hid_pm_complete()
320 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in intel_hid_input_setup()
323 	priv->input_dev = devm_input_allocate_device(&device->dev);  in intel_hid_input_setup()
324 	if (!priv->input_dev)  in intel_hid_input_setup()
325 		return -ENOMEM;  in intel_hid_input_setup()
327 	ret = sparse_keymap_setup(priv->input_dev, intel_hid_keymap, NULL);  in intel_hid_input_setup()
331 	priv->input_dev->name = "Intel HID events";  in intel_hid_input_setup()
332 	priv->input_dev->id.bustype = BUS_HOST;  in intel_hid_input_setup()
334 	return input_register_device(priv->input_dev);  in intel_hid_input_setup()
339 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in intel_button_array_input_setup()
343 	priv->array = devm_input_allocate_device(&device->dev);  in intel_button_array_input_setup()
344 	if (!priv->array)  in intel_button_array_input_setup()
345 		return -ENOMEM;  in intel_button_array_input_setup()
347 	ret = sparse_keymap_setup(priv->array, intel_array_keymap, NULL);  in intel_button_array_input_setup()
351 	priv->array->name = "Intel HID 5 button array";  in intel_button_array_input_setup()
352 	priv->array->id.bustype = BUS_HOST;  in intel_button_array_input_setup()
354 	return input_register_device(priv->array);  in intel_button_array_input_setup()
360 	struct intel_hid_priv *priv = dev_get_drvdata(&device->dev);  in notify_handler()
363 	if (priv->wakeup_mode) {  in notify_handler()
365 		 * Needed for wakeup from suspend-to-idle to work on some  in notify_handler()
366 		 * platforms that don't expose the 5-button array, but still  in notify_handler()
373 		/* Wake up on 5-button array events only. */  in notify_handler()
374 		if (event == 0xc0 || !priv->array)  in notify_handler()
377 		if (!sparse_keymap_entry_from_scancode(priv->array, event)) {  in notify_handler()
378 			dev_info(&device->dev, "unknown event 0x%x\n", event);  in notify_handler()
383 		pm_wakeup_hard_event(&device->dev);  in notify_handler()
389 	 * the 5-button array, but still send notifies with power button  in notify_handler()
394 	if (!priv->array) {  in notify_handler()
396 			input_report_key(priv->input_dev, KEY_POWER, 1);  in notify_handler()
397 			input_sync(priv->input_dev);  in notify_handler()
402 			input_report_key(priv->input_dev, KEY_POWER, 0);  in notify_handler()
403 			input_sync(priv->input_dev);  in notify_handler()
410 		if (!priv->array ||  in notify_handler()
411 		    !sparse_keymap_report_event(priv->array, event, 1, true))  in notify_handler()
412 			dev_dbg(&device->dev, "unknown event 0x%x\n", event);  in notify_handler()
418 		dev_warn(&device->dev, "failed to get event index\n");  in notify_handler()
422 	if (!sparse_keymap_report_event(priv->input_dev, ev_index, 1, true))  in notify_handler()
423 		dev_dbg(&device->dev, "unknown event index 0x%llx\n",  in notify_handler()
429 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in button_array_present()
453 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_hid_probe()
462 		dev_warn(&device->dev, "failed to read mode\n");  in intel_hid_probe()
463 		return -ENODEV;  in intel_hid_probe()
472 		dev_info(&device->dev, "platform is not in simple mode\n");  in intel_hid_probe()
473 		return -ENODEV;  in intel_hid_probe()
476 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in intel_hid_probe()
478 		return -ENOMEM;  in intel_hid_probe()
479 	dev_set_drvdata(&device->dev, priv);  in intel_hid_probe()
489 		dev_info(&device->dev, "platform supports 5 button array\n");  in intel_hid_probe()
500 		return -EBUSY;  in intel_hid_probe()
502 	err = intel_hid_set_enable(&device->dev, true);  in intel_hid_probe()
506 	if (priv->array) {  in intel_hid_probe()
509 		intel_button_array_enable(&device->dev, true);  in intel_hid_probe()
514 			dev_warn(&device->dev,  in intel_hid_probe()
519 	device_init_wakeup(&device->dev, true);  in intel_hid_probe()
536 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_hid_remove()
538 	device_init_wakeup(&device->dev, false);  in intel_hid_remove()
540 	intel_hid_set_enable(&device->dev, false);  in intel_hid_remove()
541 	intel_button_array_enable(&device->dev, false);  in intel_hid_remove()
552 		.name = "intel-hid",
582 			dev_info(&dev->dev,  in check_acpi_dev()
583 				 "intel-hid: created platform device\n");  in check_acpi_dev()