1 // SPDX-License-Identifier: GPL-2.0
13 #include <linux/input/sparse-keymap.h>
26 #define HWMI_METHOD_GUID "ABBC0F5B-8EA1-11D1-A000-C90629100000"
27 #define HWMI_EVENT_GUID "ABBC0F5C-8EA1-11D1-A000-C90629100000"
30 #define WMI0_EXPENSIVE_GUID "39142400-C6A3-40fa-BADB-8A2652834100"
31 #define WMI0_EVENT_GUID "59142400-C6A3-40fa-BADB-8A2652834100"
93 static int battery_reset = -1;
94 static int report_brightness = -1;
98 		"Reset battery charge values to (0-0) before disabling it using (0-100)");
107 	quirks = dmi->driver_data;  in dmi_matched()
126 		.ident = "Huawei MACH-WX9",
129 			DMI_MATCH(DMI_PRODUCT_NAME, "MACH-WX9"),
152 	mutex_lock(&huawei->wmi_lock);  in huawei_wmi_call()
154 	mutex_unlock(&huawei->wmi_lock);  in huawei_wmi_call()
156 		dev_err(huawei->dev, "Failed to evaluate wmi method\n");  in huawei_wmi_call()
157 		return -ENODEV;  in huawei_wmi_call()
168  * the return status is non-zero, we return -ENODEV but still copy the returned
184 	 * HWMI and if we get a non-zero return status we evaluate it again.  in huawei_wmi_cmd()
193 			err = -EIO;  in huawei_wmi_cmd()
197 		switch (obj->type) {  in huawei_wmi_cmd()
202 			if (obj->buffer.length == 0x104) {  in huawei_wmi_cmd()
204 				obj->buffer.pointer += 4;  in huawei_wmi_cmd()
207 				dev_err(huawei->dev, "Bad buffer length, got %d\n", obj->buffer.length);  in huawei_wmi_cmd()
208 				err = -EIO;  in huawei_wmi_cmd()
217 			if (obj->package.count != 2) {  in huawei_wmi_cmd()
218 				dev_err(huawei->dev, "Bad package count, got %d\n", obj->package.count);  in huawei_wmi_cmd()
219 				err = -EIO;  in huawei_wmi_cmd()
223 			obj = &obj->package.elements[1];  in huawei_wmi_cmd()
224 			if (obj->type != ACPI_TYPE_BUFFER) {  in huawei_wmi_cmd()
225 				dev_err(huawei->dev, "Bad package element type, got %d\n", obj->type);  in huawei_wmi_cmd()
226 				err = -EIO;  in huawei_wmi_cmd()
229 			len = obj->buffer.length;  in huawei_wmi_cmd()
234 			dev_err(huawei->dev, "Unexpected obj type, got: %d\n", obj->type);  in huawei_wmi_cmd()
235 			err = -EIO;  in huawei_wmi_cmd()
239 		if (!*obj->buffer.pointer)  in huawei_wmi_cmd()
243 	err = (*obj->buffer.pointer) ? -ENODEV : 0;  in huawei_wmi_cmd()
247 		memcpy(buf, obj->buffer.pointer, len);  in huawei_wmi_cmd()
261 	if (quirks && quirks->ec_micmute) {  in huawei_wmi_micmute_led_set()
273 			return -ENODEV;  in huawei_wmi_micmute_led_set()
287 			return -ENODEV;  in huawei_wmi_micmute_led_set()
292 			return -ENODEV;  in huawei_wmi_micmute_led_set()
309 	huawei->cdev.name = "platform::micmute";  in huawei_wmi_leds_setup()
310 	huawei->cdev.max_brightness = 1;  in huawei_wmi_leds_setup()
311 	huawei->cdev.brightness_set_blocking = &huawei_wmi_micmute_led_set;  in huawei_wmi_leds_setup()
312 	huawei->cdev.default_trigger = "audio-micmute";  in huawei_wmi_leds_setup()
313 	huawei->cdev.dev = dev;  in huawei_wmi_leds_setup()
314 	huawei->cdev.flags = LED_CORE_SUSPENDRESUME;  in huawei_wmi_leds_setup()
316 	devm_led_classdev_register(dev, &huawei->cdev);  in huawei_wmi_leds_setup()
330 	/* Find the last two non-zero values. Return status is ignored. */  in huawei_wmi_battery_get()
331 	i = ARRAY_SIZE(ret) - 1;  in huawei_wmi_battery_get()
334 			*start = ret[i-1];  in huawei_wmi_battery_get()
337 	} while (i > 2 && !ret[i--]);  in huawei_wmi_battery_get()
348 		return -EINVAL;  in huawei_wmi_battery_set()
359 	if (quirks && quirks->battery_reset && start == 0 && end == 100) {  in huawei_wmi_battery_set()
422 		return -EINVAL;  in charge_control_start_threshold_store()
442 		return -EINVAL;  in charge_control_end_threshold_store()
458 		return -EINVAL;  in charge_control_thresholds_store()
475 	err = device_create_file(&battery->dev, &dev_attr_charge_control_start_threshold);  in huawei_wmi_battery_add()
479 	err = device_create_file(&battery->dev, &dev_attr_charge_control_end_threshold);  in huawei_wmi_battery_add()
481 		device_remove_file(&battery->dev, &dev_attr_charge_control_start_threshold);  in huawei_wmi_battery_add()
488 	device_remove_file(&battery->dev, &dev_attr_charge_control_start_threshold);  in huawei_wmi_battery_remove()
489 	device_remove_file(&battery->dev, &dev_attr_charge_control_end_threshold);  in huawei_wmi_battery_remove()
504 	huawei->battery_available = true;  in huawei_wmi_battery_setup()
506 		huawei->battery_available = false;  in huawei_wmi_battery_setup()
518 	if (huawei->battery_available) {  in huawei_wmi_battery_exit()
524 /* Fn lock */
535 	/* Find the first non-zero value. Return status is ignored. */  in huawei_wmi_fn_lock_get()
539 			*on = ret[i] - 1; // -1 undefined, 0 off, 1 on.  in huawei_wmi_fn_lock_get()
576 		return -EINVAL;  in fn_lock_state_store()
591 	huawei->fn_lock_available = true;  in huawei_wmi_fn_lock_setup()
593 		huawei->fn_lock_available = false;  in huawei_wmi_fn_lock_setup()
604 	if (huawei->fn_lock_available)  in huawei_wmi_fn_lock_exit()
613 	struct huawei_wmi *huawei = m->private;  in huawei_wmi_debugfs_call_dump()
616 	switch (obj->type) {  in huawei_wmi_debugfs_call_dump()
618 		seq_printf(m, "0x%llx", obj->integer.value);  in huawei_wmi_debugfs_call_dump()
621 		seq_printf(m, "\"%.*s\"", obj->string.length, obj->string.pointer);  in huawei_wmi_debugfs_call_dump()
625 		for (i = 0; i < obj->buffer.length; i++) {  in huawei_wmi_debugfs_call_dump()
626 			seq_printf(m, "0x%02x", obj->buffer.pointer[i]);  in huawei_wmi_debugfs_call_dump()
627 			if (i < obj->buffer.length - 1)  in huawei_wmi_debugfs_call_dump()
634 		for (i = 0; i < obj->package.count; i++) {  in huawei_wmi_debugfs_call_dump()
635 			huawei_wmi_debugfs_call_dump(m, huawei, &obj->package.elements[i]);  in huawei_wmi_debugfs_call_dump()
636 			if (i < obj->package.count - 1)  in huawei_wmi_debugfs_call_dump()
642 		dev_err(huawei->dev, "Unexpected obj type, got %d\n", obj->type);  in huawei_wmi_debugfs_call_dump()
649 	struct huawei_wmi *huawei = m->private;  in huawei_wmi_debugfs_call_show()
656 	in.pointer = &huawei->debug.arg;  in huawei_wmi_debugfs_call_show()
664 		err = -EIO;  in huawei_wmi_debugfs_call_show()
681 	huawei->debug.root = debugfs_create_dir("huawei-wmi", NULL);  in huawei_wmi_debugfs_setup()
683 	debugfs_create_x64("arg", 0644, huawei->debug.root,  in huawei_wmi_debugfs_setup()
684 		&huawei->debug.arg);  in huawei_wmi_debugfs_setup()
686 		huawei->debug.root, huawei, &huawei_wmi_debugfs_call_fops);  in huawei_wmi_debugfs_setup()
693 	debugfs_remove_recursive(huawei->debug.root);  in huawei_wmi_debugfs_exit()
717 		if (obj && obj->type == ACPI_TYPE_INTEGER)  in huawei_wmi_process_key()
718 			code = obj->integer.value;  in huawei_wmi_process_key()
725 		dev_info(&idev->dev, "Unknown key pressed, code: 0x%04x\n", code);  in huawei_wmi_process_key()
729 	if (quirks && !quirks->report_brightness &&  in huawei_wmi_process_key()
730 			(key->sw.code == KEY_BRIGHTNESSDOWN ||  in huawei_wmi_process_key()
731 			key->sw.code == KEY_BRIGHTNESSUP))  in huawei_wmi_process_key()
741 	if (obj && obj->type == ACPI_TYPE_INTEGER)  in huawei_wmi_input_notify()
742 		huawei_wmi_process_key(idev, obj->integer.value);  in huawei_wmi_input_notify()
744 		dev_err(&idev->dev, "Bad response type\n");  in huawei_wmi_input_notify()
755 		return -ENOMEM;  in huawei_wmi_input_setup()
757 	idev->name = "Huawei WMI hotkeys";  in huawei_wmi_input_setup()
758 	idev->phys = "wmi/input0";  in huawei_wmi_input_setup()
759 	idev->id.bustype = BUS_HOST;  in huawei_wmi_input_setup()
760 	idev->dev.parent = dev;  in huawei_wmi_input_setup()
772 		return -EIO;  in huawei_wmi_input_setup()
796 	huawei_wmi->dev = &pdev->dev;  in huawei_wmi_probe()
798 	while (*guid->guid_string) {  in huawei_wmi_probe()
799 		if (wmi_has_guid(guid->guid_string)) {  in huawei_wmi_probe()
800 			err = huawei_wmi_input_setup(&pdev->dev, guid->guid_string);  in huawei_wmi_probe()
802 				dev_err(&pdev->dev, "Failed to setup input on %s\n", guid->guid_string);  in huawei_wmi_probe()
811 		mutex_init(&huawei_wmi->wmi_lock);  in huawei_wmi_probe()
813 		huawei_wmi_leds_setup(&pdev->dev);  in huawei_wmi_probe()
814 		huawei_wmi_fn_lock_setup(&pdev->dev);  in huawei_wmi_probe()
815 		huawei_wmi_battery_setup(&pdev->dev);  in huawei_wmi_probe()
816 		huawei_wmi_debugfs_setup(&pdev->dev);  in huawei_wmi_probe()
826 	while (*guid->guid_string) {  in huawei_wmi_remove()
827 		if (wmi_has_guid(guid->guid_string))  in huawei_wmi_remove()
828 			huawei_wmi_input_exit(&pdev->dev, guid->guid_string);  in huawei_wmi_remove()
834 		huawei_wmi_debugfs_exit(&pdev->dev);  in huawei_wmi_remove()
835 		huawei_wmi_battery_exit(&pdev->dev);  in huawei_wmi_remove()
836 		huawei_wmi_fn_lock_exit(&pdev->dev);  in huawei_wmi_remove()
842 		.name = "huawei-wmi",
855 		return -ENOMEM;  in huawei_wmi_init()
859 	if (battery_reset != -1)  in huawei_wmi_init()
860 		quirks->battery_reset = battery_reset;  in huawei_wmi_init()
861 	if (report_brightness != -1)  in huawei_wmi_init()
862 		quirks->report_brightness = report_brightness;  in huawei_wmi_init()
868 	pdev = platform_device_register_simple("huawei-wmi", PLATFORM_DEVID_NONE, NULL, 0);  in huawei_wmi_init()
885 	struct platform_device *pdev = to_platform_device(huawei_wmi->dev);  in huawei_wmi_exit()