1 // SPDX-License-Identifier: GPL-2.0+
13 #include <linux/input/sparse-keymap.h>
21 /* Returned when NOT in tablet mode on some HP Stream x360 11 models */
23 /* When NOT in tablet mode, VGBS returns with the flag 0x40 */
45 	{ KE_KEY, 0xC4, { KEY_VOLUMEUP } },		/* volume-up key press */
46 	{ KE_IGNORE, 0xC5, { KEY_VOLUMEUP } },		/* volume-up key release */
47 	{ KE_KEY, 0xC6, { KEY_VOLUMEDOWN } },		/* volume-down key press */
48 	{ KE_IGNORE, 0xC7, { KEY_VOLUMEDOWN } },	/* volume-down key release */
49 	{ KE_KEY,    0xC8, { KEY_ROTATE_LOCK_TOGGLE } },	/* rotate-lock key press */
50 	{ KE_KEY,    0xC9, { KEY_ROTATE_LOCK_TOGGLE } },	/* rotate-lock key release */
57 	 * intel-vbtn code, always seem to use this for 2-in-1s / convertibles and set
58 	 * SW_DOCK=1 when in laptop-mode (in tandem with setting SW_TABLET_MODE=0).
59 	 * This causes userspace to think the laptop is docked to a port-replicator
60 	 * and to disable suspend-on-lid-close, which is undesirable.
65 	{ KE_SW,     0xCC, { .sw = { SW_TABLET_MODE, 1 } } },	/* Tablet */
93 	input_report_switch(priv->switches_dev, SW_TABLET_MODE, m);  in detect_tablet_mode()
95 	input_report_switch(priv->switches_dev, SW_DOCK, m);  in detect_tablet_mode()
97 	input_sync(priv->switches_dev);  in detect_tablet_mode()
101  * Note this unconditionally creates the 2 input_dev-s and sets up
102  * the sparse-keymaps. Only the registration is conditional on
105  * on the input_dev-s do determine the event type.
109 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in intel_vbtn_input_setup()
112 	priv->buttons_dev = devm_input_allocate_device(&device->dev);  in intel_vbtn_input_setup()
113 	if (!priv->buttons_dev)  in intel_vbtn_input_setup()
114 		return -ENOMEM;  in intel_vbtn_input_setup()
116 	ret = sparse_keymap_setup(priv->buttons_dev, intel_vbtn_keymap, NULL);  in intel_vbtn_input_setup()
120 	priv->buttons_dev->dev.parent = &device->dev;  in intel_vbtn_input_setup()
121 	priv->buttons_dev->name = "Intel Virtual Buttons";  in intel_vbtn_input_setup()
122 	priv->buttons_dev->id.bustype = BUS_HOST;  in intel_vbtn_input_setup()
124 	if (priv->has_buttons) {  in intel_vbtn_input_setup()
125 		ret = input_register_device(priv->buttons_dev);  in intel_vbtn_input_setup()
130 	priv->switches_dev = devm_input_allocate_device(&device->dev);  in intel_vbtn_input_setup()
131 	if (!priv->switches_dev)  in intel_vbtn_input_setup()
132 		return -ENOMEM;  in intel_vbtn_input_setup()
134 	ret = sparse_keymap_setup(priv->switches_dev, intel_vbtn_switchmap, NULL);  in intel_vbtn_input_setup()
138 	priv->switches_dev->dev.parent = &device->dev;  in intel_vbtn_input_setup()
139 	priv->switches_dev->name = "Intel Virtual Switches";  in intel_vbtn_input_setup()
140 	priv->switches_dev->id.bustype = BUS_HOST;  in intel_vbtn_input_setup()
142 	if (priv->has_switches) {  in intel_vbtn_input_setup()
143 		ret = input_register_device(priv->switches_dev);  in intel_vbtn_input_setup()
154 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in notify_handler()
161 	guard(mutex)(&priv->mutex);  in notify_handler()
163 	if ((ke = sparse_keymap_entry_from_scancode(priv->buttons_dev, event))) {  in notify_handler()
164 		if (!priv->has_buttons) {  in notify_handler()
165 …dev_warn(&device->dev, "Warning: received 0x%02x button event on a device without buttons, please …  in notify_handler()
169 		input_dev = priv->buttons_dev;  in notify_handler()
170 	} else if ((ke = sparse_keymap_entry_from_scancode(priv->switches_dev, event))) {  in notify_handler()
171 		if (!priv->has_switches) {  in notify_handler()
173 			if (priv->dual_accel)  in notify_handler()
176 …dev_info(&device->dev, "Registering Intel Virtual Switches input-dev after receiving a switch even…  in notify_handler()
177 			ret = input_register_device(priv->switches_dev);  in notify_handler()
181 			priv->has_switches = true;  in notify_handler()
183 		input_dev = priv->switches_dev;  in notify_handler()
185 		dev_dbg(&device->dev, "unknown event index 0x%x\n", event);  in notify_handler()
189 	if (priv->wakeup_mode) {  in notify_handler()
190 		pm_wakeup_hard_event(&device->dev);  in notify_handler()
196 		if (ke->type == KE_KEY)  in notify_handler()
205 	autorelease = val && (!ke_rel || ke_rel->type == KE_IGNORE);  in notify_handler()
211  * There are several laptops (non 2-in-1) models out there which support VGBS,
217  * with libinput, leads to a non-usable system. Where as OTOH many people will
219  * list is used here. This list mainly matches on the chassis-type of 2-in-1s.
221  * There are also some 2-in-1s which use the intel-vbtn ACPI interface to report
222  * SW_TABLET_MODE with a chassis-type of 8 ("Portable") or 10 ("Notebook"),
224  * possible broken VGBS ACPI-method also use these chassis-types.
245 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
252 			DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271"),
278 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_vbtn_probe()
289 		dev_warn(&device->dev, "failed to read Intel Virtual Button driver\n");  in intel_vbtn_probe()
290 		return -ENODEV;  in intel_vbtn_probe()
293 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in intel_vbtn_probe()
295 		return -ENOMEM;  in intel_vbtn_probe()
296 	dev_set_drvdata(&device->dev, priv);  in intel_vbtn_probe()
298 	err = devm_mutex_init(&device->dev, &priv->mutex);  in intel_vbtn_probe()
302 	priv->dual_accel = dual_accel;  in intel_vbtn_probe()
303 	priv->has_buttons = has_buttons;  in intel_vbtn_probe()
304 	priv->has_switches = has_switches;  in intel_vbtn_probe()
317 		return -EBUSY;  in intel_vbtn_probe()
322 			dev_err(&device->dev, "Error VBDL failed with ACPI status %d\n", status);  in intel_vbtn_probe()
326 		detect_tablet_mode(&device->dev);  in intel_vbtn_probe()
328 	device_init_wakeup(&device->dev, true);  in intel_vbtn_probe()
340 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_vbtn_remove()
342 	device_init_wakeup(&device->dev, false);  in intel_vbtn_remove()
351 		priv->wakeup_mode = true;  in intel_vbtn_pm_prepare()
360 	priv->wakeup_mode = false;  in intel_vbtn_pm_complete()
369 	if (priv->has_switches)  in intel_vbtn_pm_resume()
385 		.name = "intel-vbtn",
401 			dev_info(&dev->dev,  in check_acpi_dev()
402 				 "intel-vbtn: created platform device\n");  in check_acpi_dev()