Pull button into test branch
This commit is contained in:
commit
b361735043
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@ -97,6 +97,7 @@ config ACPI_BATTERY
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config ACPI_BUTTON
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tristate "Button"
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depends on INPUT
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default y
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help
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This driver handles events on the power, sleep and lid buttons.
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@ -29,6 +29,7 @@
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/input.h>
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#include <acpi/acpi_bus.h>
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#include <acpi/acpi_drivers.h>
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@ -62,7 +63,7 @@
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#define _COMPONENT ACPI_BUTTON_COMPONENT
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ACPI_MODULE_NAME("acpi_button")
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MODULE_AUTHOR("Paul Diefenbaugh");
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MODULE_AUTHOR("Paul Diefenbaugh");
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MODULE_DESCRIPTION(ACPI_BUTTON_DRIVER_NAME);
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MODULE_LICENSE("GPL");
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@ -78,12 +79,14 @@ static struct acpi_driver acpi_button_driver = {
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.ops = {
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.add = acpi_button_add,
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.remove = acpi_button_remove,
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},
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},
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};
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struct acpi_button {
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struct acpi_device *device; /* Fixed button kludge */
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u8 type;
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unsigned int type;
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struct input_dev *input;
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char phys[32]; /* for input device */
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unsigned long pushed;
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};
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@ -109,8 +112,7 @@ static struct proc_dir_entry *acpi_button_dir;
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static int acpi_button_info_seq_show(struct seq_file *seq, void *offset)
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{
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struct acpi_button *button = (struct acpi_button *)seq->private;
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struct acpi_button *button = seq->private;
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if (!button || !button->device)
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return 0;
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@ -128,22 +130,17 @@ static int acpi_button_info_open_fs(struct inode *inode, struct file *file)
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static int acpi_button_state_seq_show(struct seq_file *seq, void *offset)
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{
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struct acpi_button *button = (struct acpi_button *)seq->private;
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struct acpi_button *button = seq->private;
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acpi_status status;
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unsigned long state;
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if (!button || !button->device)
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return 0;
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status = acpi_evaluate_integer(button->device->handle, "_LID", NULL, &state);
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if (ACPI_FAILURE(status)) {
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seq_printf(seq, "state: unsupported\n");
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} else {
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seq_printf(seq, "state: %s\n",
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(state ? "open" : "closed"));
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}
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seq_printf(seq, "state: %s\n",
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ACPI_FAILURE(status) ? "unsupported" :
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(state ? "open" : "closed"));
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return 0;
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}
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@ -159,8 +156,7 @@ static struct proc_dir_entry *acpi_lid_dir;
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static int acpi_button_add_fs(struct acpi_device *device)
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{
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struct proc_dir_entry *entry = NULL;
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struct acpi_button *button = NULL;
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struct acpi_button *button;
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if (!device || !acpi_driver_data(device))
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return -EINVAL;
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@ -228,10 +224,8 @@ static int acpi_button_add_fs(struct acpi_device *device)
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static int acpi_button_remove_fs(struct acpi_device *device)
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{
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struct acpi_button *button = NULL;
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struct acpi_button *button = acpi_driver_data(device);
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button = acpi_driver_data(device);
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if (acpi_device_dir(device)) {
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if (button->type == ACPI_BUTTON_TYPE_LID)
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remove_proc_entry(ACPI_BUTTON_FILE_STATE,
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@ -253,14 +247,34 @@ static int acpi_button_remove_fs(struct acpi_device *device)
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static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
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{
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struct acpi_button *button = (struct acpi_button *)data;
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struct acpi_button *button = data;
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struct input_dev *input;
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if (!button || !button->device)
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return;
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switch (event) {
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case ACPI_BUTTON_NOTIFY_STATUS:
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input = button->input;
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if (button->type == ACPI_BUTTON_TYPE_LID) {
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struct acpi_handle *handle = button->device->handle;
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unsigned long state;
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if (!ACPI_FAILURE(acpi_evaluate_integer(handle, "_LID",
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NULL, &state)))
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input_report_switch(input, SW_LID, !state);
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} else {
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int keycode = test_bit(KEY_SLEEP, input->keybit) ?
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KEY_SLEEP : KEY_POWER;
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input_report_key(input, keycode, 1);
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input_sync(input);
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input_report_key(input, keycode, 0);
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}
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input_sync(input);
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acpi_bus_generate_event(button->device, event,
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++button->pushed);
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break;
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@ -275,8 +289,7 @@ static void acpi_button_notify(acpi_handle handle, u32 event, void *data)
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static acpi_status acpi_button_notify_fixed(void *data)
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{
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struct acpi_button *button = (struct acpi_button *)data;
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struct acpi_button *button = data;
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if (!button)
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return AE_BAD_PARAMETER;
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@ -286,24 +299,75 @@ static acpi_status acpi_button_notify_fixed(void *data)
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return AE_OK;
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}
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static int acpi_button_install_notify_handlers(struct acpi_button *button)
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{
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acpi_status status;
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switch (button->type) {
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case ACPI_BUTTON_TYPE_POWERF:
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status =
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acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
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acpi_button_notify_fixed,
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button);
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break;
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case ACPI_BUTTON_TYPE_SLEEPF:
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status =
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acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
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acpi_button_notify_fixed,
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button);
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break;
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default:
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status = acpi_install_notify_handler(button->device->handle,
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ACPI_DEVICE_NOTIFY,
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acpi_button_notify,
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button);
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break;
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}
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return ACPI_FAILURE(status) ? -ENODEV : 0;
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}
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static void acpi_button_remove_notify_handlers(struct acpi_button *button)
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{
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switch (button->type) {
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case ACPI_BUTTON_TYPE_POWERF:
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acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
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acpi_button_notify_fixed);
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break;
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case ACPI_BUTTON_TYPE_SLEEPF:
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acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
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acpi_button_notify_fixed);
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break;
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default:
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acpi_remove_notify_handler(button->device->handle,
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ACPI_DEVICE_NOTIFY,
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acpi_button_notify);
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break;
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}
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}
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static int acpi_button_add(struct acpi_device *device)
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{
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int result = 0;
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acpi_status status = AE_OK;
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struct acpi_button *button = NULL;
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int error;
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struct acpi_button *button;
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struct input_dev *input;
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if (!device)
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return -EINVAL;
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button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL);
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button = kzalloc(sizeof(struct acpi_button), GFP_KERNEL);
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if (!button)
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return -ENOMEM;
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memset(button, 0, sizeof(struct acpi_button));
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button->device = device;
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acpi_driver_data(device) = button;
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button->input = input = input_allocate_device();
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if (!input) {
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error = -ENOMEM;
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goto err_free_button;
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}
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/*
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* Determine the button type (via hid), as fixed-feature buttons
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* need to be handled a bit differently than generic-space.
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@ -338,39 +402,48 @@ static int acpi_button_add(struct acpi_device *device)
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} else {
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printk(KERN_ERR PREFIX "Unsupported hid [%s]\n",
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acpi_device_hid(device));
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result = -ENODEV;
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goto end;
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error = -ENODEV;
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goto err_free_input;
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}
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result = acpi_button_add_fs(device);
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if (result)
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goto end;
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error = acpi_button_add_fs(device);
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if (error)
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goto err_free_input;
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error = acpi_button_install_notify_handlers(button);
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if (error)
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goto err_remove_fs;
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snprintf(button->phys, sizeof(button->phys),
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"%s/button/input0", acpi_device_hid(device));
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input->name = acpi_device_name(device);
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input->phys = button->phys;
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input->id.bustype = BUS_HOST;
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input->id.product = button->type;
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switch (button->type) {
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case ACPI_BUTTON_TYPE_POWER:
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case ACPI_BUTTON_TYPE_POWERF:
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status =
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acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
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acpi_button_notify_fixed,
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button);
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input->evbit[0] = BIT(EV_KEY);
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set_bit(KEY_POWER, input->keybit);
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break;
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case ACPI_BUTTON_TYPE_SLEEP:
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case ACPI_BUTTON_TYPE_SLEEPF:
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status =
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acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
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acpi_button_notify_fixed,
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button);
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input->evbit[0] = BIT(EV_KEY);
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set_bit(KEY_SLEEP, input->keybit);
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break;
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default:
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status = acpi_install_notify_handler(device->handle,
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ACPI_DEVICE_NOTIFY,
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acpi_button_notify,
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button);
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case ACPI_BUTTON_TYPE_LID:
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input->evbit[0] = BIT(EV_SW);
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set_bit(SW_LID, input->swbit);
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break;
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}
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if (ACPI_FAILURE(status)) {
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result = -ENODEV;
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goto end;
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}
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error = input_register_device(input);
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if (error)
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goto err_remove_handlers;
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if (device->wakeup.flags.valid) {
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/* Button's GPE is run-wake GPE */
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@ -385,47 +458,31 @@ static int acpi_button_add(struct acpi_device *device)
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printk(KERN_INFO PREFIX "%s [%s]\n",
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acpi_device_name(device), acpi_device_bid(device));
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end:
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if (result) {
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acpi_button_remove_fs(device);
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kfree(button);
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}
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return 0;
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return result;
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err_remove_handlers:
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acpi_button_remove_notify_handlers(button);
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err_remove_fs:
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acpi_button_remove_fs(device);
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err_free_input:
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input_free_device(input);
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err_free_button:
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kfree(button);
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return error;
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}
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static int acpi_button_remove(struct acpi_device *device, int type)
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{
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acpi_status status = 0;
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struct acpi_button *button = NULL;
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struct acpi_button *button;
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if (!device || !acpi_driver_data(device))
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return -EINVAL;
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button = acpi_driver_data(device);
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/* Unregister for device notifications. */
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switch (button->type) {
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case ACPI_BUTTON_TYPE_POWERF:
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status =
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acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON,
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acpi_button_notify_fixed);
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break;
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case ACPI_BUTTON_TYPE_SLEEPF:
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status =
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acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON,
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acpi_button_notify_fixed);
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break;
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default:
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status = acpi_remove_notify_handler(device->handle,
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ACPI_DEVICE_NOTIFY,
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acpi_button_notify);
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break;
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}
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acpi_button_remove_notify_handlers(button);
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acpi_button_remove_fs(device);
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input_unregister_device(button->input);
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kfree(button);
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return 0;
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@ -433,8 +490,7 @@ static int acpi_button_remove(struct acpi_device *device, int type)
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static int __init acpi_button_init(void)
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{
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int result = 0;
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int result;
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acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir);
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if (!acpi_button_dir)
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@ -451,7 +507,6 @@ static int __init acpi_button_init(void)
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static void __exit acpi_button_exit(void)
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{
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acpi_bus_unregister_driver(&acpi_button_driver);
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if (acpi_power_dir)
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@ -461,8 +516,6 @@ static void __exit acpi_button_exit(void)
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if (acpi_lid_dir)
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remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir);
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remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir);
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return;
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}
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module_init(acpi_button_init);
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