drivers/acpi/button.c

3  *  button.c - ACPI Button Driver
9 #define pr_fmt(fmt) "ACPI: button: " fmt
22 #include <acpi/button.h>
24 #define ACPI_BUTTON_CLASS		"button"
149 	.name = "button",
195 	struct acpi_button *button = acpi_driver_data(device);
207 	    button->last_state != !!state)
212 	next_report = ktime_add(button->last_time,
214 	if (button->last_state == !!state &&
256 				input_report_switch(button->input,
258 				input_sync(button->input);
266 		input_report_switch(button->input, SW_LID, !state);
267 		input_sync(button->input);
268 		button->last_state = !!state;
269 		button->last_time = ktime_get();
289 	struct acpi_button *button = acpi_driver_data(device);
294 	if (button->type != ACPI_BUTTON_TYPE_LID)
302 	/* create /proc/acpi/button */
307 	/* create /proc/acpi/button/lid */
314 	/* create /proc/acpi/button/lid/LID/ */
321 	/* create /proc/acpi/button/lid/LID/state */
348 	struct acpi_button *button = acpi_driver_data(device);
350 	if (button->type != ACPI_BUTTON_TYPE_LID)
393 	struct acpi_button *button = acpi_driver_data(device);
407 	button->lid_state_initialized = true;
413 	struct acpi_button *button;
421 	button = acpi_driver_data(device);
422 	if (!button->lid_state_initialized)
431 	struct acpi_button *button;
443 	button = acpi_driver_data(device);
444 	if (button->suspended)
447 	input = button->input;
457 					event, ++button->pushed);
475 	struct acpi_button *button = acpi_driver_data(device);
477 	button->suspended = true;
485 	struct acpi_button *button = acpi_driver_data(device);
487 	button->suspended = false;
488 	if (button->type == ACPI_BUTTON_TYPE_LID) {
489 		button->last_state = !!acpi_lid_evaluate_state(device);
490 		button->last_time = ktime_get();
494 	if (button->type == ACPI_BUTTON_TYPE_POWER) {
495 		input = button->input;
508 	struct acpi_button *button = acpi_driver_data(device);
510 	button->last_state = !!acpi_lid_evaluate_state(device);
511 	button->last_time = ktime_get();
520 	struct acpi_button *button;
531 	button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL);
532 	if (!button)
535 	device->driver_data = button;
537 	button->input = input = input_allocate_device();
548 		button->type = ACPI_BUTTON_TYPE_POWER;
555 		button->type = ACPI_BUTTON_TYPE_SLEEP;
561 		button->type = ACPI_BUTTON_TYPE_LID;
580 	snprintf(button->phys, sizeof(button->phys), "%s/button/input0", hid);
583 	input->phys = button->phys;
585 	input->id.product = button->type;
588 	switch (button->type) {
630 	if (button->type == ACPI_BUTTON_TYPE_LID) {
647 	kfree(button);
653 	struct acpi_button *button = acpi_driver_data(device);
666 					   button->type == ACPI_BUTTON_TYPE_LID ?
674 	input_unregister_device(button->input);
675 	kfree(button);