1 // SPDX-License-Identifier: GPL-2.0+
12 #include <linux/input/sparse-keymap.h>
18 /* Returned when NOT in tablet mode on some HP Stream x360 11 models */
20 /* When NOT in tablet mode, VGBS returns with the flag 0x40 */
40 	{ KE_KEY, 0xC4, { KEY_VOLUMEUP } },		/* volume-up key press */
41 	{ KE_IGNORE, 0xC5, { KEY_VOLUMEUP } },		/* volume-up key release */
42 	{ KE_KEY, 0xC6, { KEY_VOLUMEDOWN } },		/* volume-down key press */
43 	{ KE_IGNORE, 0xC7, { KEY_VOLUMEDOWN } },	/* volume-down key release */
44 	{ KE_KEY,    0xC8, { KEY_ROTATE_LOCK_TOGGLE } },	/* rotate-lock key press */
45 	{ KE_KEY,    0xC9, { KEY_ROTATE_LOCK_TOGGLE } },	/* rotate-lock key release */
51 	{ KE_SW,     0xCC, { .sw = { SW_TABLET_MODE, 1 } } },	/* Tablet */
67 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in intel_vbtn_input_setup()
71 		memcpy(&priv->keymap[keymap_len], intel_vbtn_keymap,  in intel_vbtn_input_setup()
77 	if (priv->has_switches) {  in intel_vbtn_input_setup()
78 		memcpy(&priv->keymap[keymap_len], intel_vbtn_switchmap,  in intel_vbtn_input_setup()
84 	priv->keymap[keymap_len].type = KE_END;  in intel_vbtn_input_setup()
86 	priv->input_dev = devm_input_allocate_device(&device->dev);  in intel_vbtn_input_setup()
87 	if (!priv->input_dev)  in intel_vbtn_input_setup()
88 		return -ENOMEM;  in intel_vbtn_input_setup()
90 	ret = sparse_keymap_setup(priv->input_dev, priv->keymap, NULL);  in intel_vbtn_input_setup()
94 	priv->input_dev->dev.parent = &device->dev;  in intel_vbtn_input_setup()
95 	priv->input_dev->name = "Intel Virtual Button driver";  in intel_vbtn_input_setup()
96 	priv->input_dev->id.bustype = BUS_HOST;  in intel_vbtn_input_setup()
98 	return input_register_device(priv->input_dev);  in intel_vbtn_input_setup()
104 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in notify_handler()
109 	if (priv->wakeup_mode) {  in notify_handler()
110 		ke = sparse_keymap_entry_from_scancode(priv->input_dev, event);  in notify_handler()
112 			pm_wakeup_hard_event(&device->dev);  in notify_handler()
115 			 * Switch events like tablet mode will wake the device  in notify_handler()
119 			if (ke->type == KE_SW)  in notify_handler()
120 				sparse_keymap_report_event(priv->input_dev,  in notify_handler()
133 	ke_rel = sparse_keymap_entry_from_scancode(priv->input_dev, event | 1);  in notify_handler()
134 	autorelease = val && (!ke_rel || ke_rel->type == KE_IGNORE);  in notify_handler()
136 	if (sparse_keymap_report_event(priv->input_dev, event, val, autorelease))  in notify_handler()
140 	dev_dbg(&device->dev, "unknown event index 0x%x\n", event);  in notify_handler()
145 	struct intel_vbtn_priv *priv = dev_get_drvdata(&device->dev);  in detect_tablet_mode()
146 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in detect_tablet_mode()
156 	input_report_switch(priv->input_dev, SW_TABLET_MODE, m);  in detect_tablet_mode()
158 	input_report_switch(priv->input_dev, SW_DOCK, m);  in detect_tablet_mode()
162  * There are several laptops (non 2-in-1) models out there which support VGBS,
168  * with libinput, leads to a non-usable system. Where as OTOH many people will
170  * list is used here. This list mainly matches on the chassis-type of 2-in-1s.
172  * There are also some 2-in-1s which use the intel-vbtn ACPI interface to report
173  * SW_TABLET_MODE with a chassis-type of 8 ("Portable") or 10 ("Notebook"),
175  * possible broken VGBS ACPI-method also use these chassis-types.
196 			DMI_MATCH(DMI_SYS_VENDOR, "Hewlett-Packard"),
217 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_vbtn_probe()
224 		dev_warn(&device->dev, "failed to read Intel Virtual Button driver\n");  in intel_vbtn_probe()
225 		return -ENODEV;  in intel_vbtn_probe()
228 	priv = devm_kzalloc(&device->dev, sizeof(*priv), GFP_KERNEL);  in intel_vbtn_probe()
230 		return -ENOMEM;  in intel_vbtn_probe()
231 	dev_set_drvdata(&device->dev, priv);  in intel_vbtn_probe()
233 	priv->has_switches = intel_vbtn_has_switches(handle);  in intel_vbtn_probe()
241 	if (priv->has_switches)  in intel_vbtn_probe()
249 		return -EBUSY;  in intel_vbtn_probe()
251 	device_init_wakeup(&device->dev, true);  in intel_vbtn_probe()
257 	acpi_handle handle = ACPI_HANDLE(&device->dev);  in intel_vbtn_remove()
259 	device_init_wakeup(&device->dev, false);  in intel_vbtn_remove()
273 	priv->wakeup_mode = true;  in intel_vbtn_pm_prepare()
281 	priv->wakeup_mode = false;  in intel_vbtn_pm_resume()
294 		.name = "intel-vbtn",
314 			dev_info(&dev->dev,  in check_acpi_dev()
315 				 "intel-vbtn: created platform device\n");  in check_acpi_dev()