1 // SPDX-License-Identifier: GPL-2.0+
12 #include <linux/input/sparse-keymap.h>
38 	{ KE_KEY, 0xC0, { KEY_POWER } },	/* power key press */
39 	{ KE_IGNORE, 0xC1, { KEY_POWER } },	/* power key release */
40 	{ KE_KEY, 0xC2, { KEY_LEFTMETA } },		/* 'Windows' key press */
41 	{ KE_KEY, 0xC3, { KEY_LEFTMETA } },		/* 'Windows' key release */
42 	{ KE_KEY, 0xC4, { KEY_VOLUMEUP } },		/* volume-up key press */
43 	{ KE_IGNORE, 0xC5, { KEY_VOLUMEUP } },		/* volume-up key release */
44 	{ KE_KEY, 0xC6, { KEY_VOLUMEDOWN } },		/* volume-down key press */
45 	{ KE_IGNORE, 0xC7, { KEY_VOLUMEDOWN } },	/* volume-down key release */
46 	{ KE_KEY,    0xC8, { KEY_ROTATE_LOCK_TOGGLE } },	/* rotate-lock key press */
47 	{ KE_KEY,    0xC9, { KEY_ROTATE_LOCK_TOGGLE } },	/* rotate-lock key release */
54 	 * intel-vbtn code, always seem to use this for 2-in-1s / convertibles and set
55 	 * SW_DOCK=1 when in laptop-mode (in tandem with setting SW_TABLET_MODE=0).
56 	 * This causes userspace to think the laptop is docked to a port-replicator
57 	 * and to disable suspend-on-lid-close, which is undesirable.
78 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in detect_tablet_mode()
79 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in detect_tablet_mode()
89 	input_report_switch(priv->switches_dev, SW_TABLET_MODE, m);  in detect_tablet_mode()
91 	input_report_switch(priv->switches_dev, SW_DOCK, m);  in detect_tablet_mode()
95  * Note this unconditionally creates the 2 input_dev-s and sets up
96  * the sparse-keymaps. Only the registration is conditional on
99  * on the input_dev-s do determine the event type.
103 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in intel_vbtn_input_setup()
106 	priv->buttons_dev = devm_input_allocate_device(&device->dev);  in intel_vbtn_input_setup()
107 	if (!priv->buttons_dev)  in intel_vbtn_input_setup()
108 		return -ENOMEM;  in intel_vbtn_input_setup()
110 	ret = sparse_keymap_setup(priv->buttons_dev, intel_vbtn_keymap, NULL);  in intel_vbtn_input_setup()
114 	priv->buttons_dev->dev.parent = &device->dev;  in intel_vbtn_input_setup()
115 	priv->buttons_dev->name = "Intel Virtual Buttons";  in intel_vbtn_input_setup()
116 	priv->buttons_dev->id.bustype = BUS_HOST;  in intel_vbtn_input_setup()
118 	if (priv->has_buttons) {  in intel_vbtn_input_setup()
119 		ret = input_register_device(priv->buttons_dev);  in intel_vbtn_input_setup()
124 	priv->switches_dev = devm_input_allocate_device(&device->dev);  in intel_vbtn_input_setup()
125 	if (!priv->switches_dev)  in intel_vbtn_input_setup()
126 		return -ENOMEM;  in intel_vbtn_input_setup()
128 	ret = sparse_keymap_setup(priv->switches_dev, intel_vbtn_switchmap, NULL);  in intel_vbtn_input_setup()
132 	priv->switches_dev->dev.parent = &device->dev;  in intel_vbtn_input_setup()
133 	priv->switches_dev->name = "Intel Virtual Switches";  in intel_vbtn_input_setup()
134 	priv->switches_dev->id.bustype = BUS_HOST;  in intel_vbtn_input_setup()
136 	if (priv->has_switches) {  in intel_vbtn_input_setup()
139 		ret = input_register_device(priv->switches_dev);  in intel_vbtn_input_setup()
150 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in notify_handler()
151 	unsigned int val = !(event & 1); /* Even=press, Odd=release */  in notify_handler()
157 	if ((ke = sparse_keymap_entry_from_scancode(priv->buttons_dev, event))) {  in notify_handler()
158 		if (!priv->has_buttons) {  in notify_handler()
159 …dev_warn(&device->dev, "Warning: received a button event on a device without buttons, please repor…  in notify_handler()
162 		input_dev = priv->buttons_dev;  in notify_handler()
163 	} else if ((ke = sparse_keymap_entry_from_scancode(priv->switches_dev, event))) {  in notify_handler()
164 		if (!priv->has_switches) {  in notify_handler()
166 			if (priv->dual_accel)  in notify_handler()
169 …dev_info(&device->dev, "Registering Intel Virtual Switches input-dev after receiving a switch even…  in notify_handler()
170 			ret = input_register_device(priv->switches_dev);  in notify_handler()
174 			priv->has_switches = true;  in notify_handler()
176 		input_dev = priv->switches_dev;  in notify_handler()
178 		dev_dbg(&device->dev, "unknown event index 0x%x\n", event);  in notify_handler()
182 	if (priv->wakeup_mode) {  in notify_handler()
183 		pm_wakeup_hard_event(&device->dev);  in notify_handler()
189 		if (ke->type == KE_KEY)  in notify_handler()
195 	 * release event, or if the odd event is KE_IGNORE.  in notify_handler()
198 	autorelease = val && (!ke_rel || ke_rel->type == KE_IGNORE);  in notify_handler()
204  * There are several laptops (non 2-in-1) models out there which support VGBS,
210  * with libinput, leads to a non-usable system. Where as OTOH many people will
212  * list is used here. This list mainly matches on the chassis-type of 2-in-1s.
214  * There are also some 2-in-1s which use the intel-vbtn ACPI interface to report
215  * SW_TABLET_MODE with a chassis-type of 8 ("Portable") or 10 ("Notebook"),
217  * possible broken VGBS ACPI-method also use these chassis-types.
238 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
245 			DMI_MATCH(DMI_PRODUCT_NAME, "Switch SA5-271"),
275 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_vbtn_probe()
286 		dev_warn(&device->dev, "failed to read Intel Virtual Button driver\n");  in intel_vbtn_probe()
287 		return -ENODEV;  in intel_vbtn_probe()
290 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in intel_vbtn_probe()
292 		return -ENOMEM;  in intel_vbtn_probe()
293 	dev_set_drvdata(&device->dev, priv);  in intel_vbtn_probe()
295 	priv->dual_accel = dual_accel;  in intel_vbtn_probe()
296 	priv->has_buttons = has_buttons;  in intel_vbtn_probe()
297 	priv->has_switches = has_switches;  in intel_vbtn_probe()
310 		return -EBUSY;  in intel_vbtn_probe()
315 			dev_err(&device->dev, "Error VBDL failed with ACPI status %d\n", status);  in intel_vbtn_probe()
318 	device_init_wakeup(&device->dev, true);  in intel_vbtn_probe()
330 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_vbtn_remove()
332 	device_init_wakeup(&device->dev, false);  in intel_vbtn_remove()
341 		priv->wakeup_mode = true;  in intel_vbtn_pm_prepare()
350 	priv->wakeup_mode = false;  in intel_vbtn_pm_complete()
369 		.name = "intel-vbtn",
385 			dev_info(&dev->dev,  in check_acpi_dev()
386 				 "intel-vbtn: created platform device\n");  in check_acpi_dev()