Subject: [PATCH] [acpi driver model] Move button driver Signed-off-by: Patrick Mochel --- drivers/acpi/Makefile | 1 drivers/acpi/button.c | 491 ---------------------------------- drivers/acpi/drivers/legacy/Makefile | 1 drivers/acpi/drivers/legacy/button.c | 491 ++++++++++++++++++++++++++++++++++ 4 files changed, 492 insertions(+), 492 deletions(-) delete mode 100644 drivers/acpi/button.c create mode 100644 drivers/acpi/drivers/legacy/button.c applies-to: 0736da0c94f14f57c673b52e4c13ef9430711314 5f2d72cbd35fb8d4ccb86679a46e3ad494fdbf65 diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile index 3ea6253..afd12af 100644 --- a/drivers/acpi/Makefile +++ b/drivers/acpi/Makefile @@ -38,7 +38,6 @@ endif obj-y += sleep/ obj-y += bus.o glue.o obj-y += drivers/ -obj-$(CONFIG_ACPI_BUTTON) += button.o obj-$(CONFIG_ACPI_EC) += ec.o obj-$(CONFIG_ACPI_FAN) += fan.o obj-$(CONFIG_ACPI_VIDEO) += video.o diff --git a/drivers/acpi/button.c b/drivers/acpi/button.c deleted file mode 100644 index 4b6d9f0..0000000 --- a/drivers/acpi/button.c +++ /dev/null @@ -1,491 +0,0 @@ -/* - * acpi_button.c - ACPI Button Driver ($Revision: 30 $) - * - * Copyright (C) 2001, 2002 Andy Grover - * Copyright (C) 2001, 2002 Paul Diefenbaugh - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or (at - * your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. - * - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ - -#include -#include -#include -#include -#include -#include -#include -#include - -#define ACPI_BUTTON_COMPONENT 0x00080000 -#define ACPI_BUTTON_DRIVER_NAME "ACPI Button Driver" -#define ACPI_BUTTON_CLASS "button" -#define ACPI_BUTTON_FILE_INFO "info" -#define ACPI_BUTTON_FILE_STATE "state" -#define ACPI_BUTTON_TYPE_UNKNOWN 0x00 -#define ACPI_BUTTON_NOTIFY_STATUS 0x80 - -#define ACPI_BUTTON_SUBCLASS_POWER "power" -#define ACPI_BUTTON_HID_POWER "PNP0C0C" -#define ACPI_BUTTON_DEVICE_NAME_POWER "Power Button (CM)" -#define ACPI_BUTTON_DEVICE_NAME_POWERF "Power Button (FF)" -#define ACPI_BUTTON_TYPE_POWER 0x01 -#define ACPI_BUTTON_TYPE_POWERF 0x02 - -#define ACPI_BUTTON_SUBCLASS_SLEEP "sleep" -#define ACPI_BUTTON_HID_SLEEP "PNP0C0E" -#define ACPI_BUTTON_DEVICE_NAME_SLEEP "Sleep Button (CM)" -#define ACPI_BUTTON_DEVICE_NAME_SLEEPF "Sleep Button (FF)" -#define ACPI_BUTTON_TYPE_SLEEP 0x03 -#define ACPI_BUTTON_TYPE_SLEEPF 0x04 - -#define ACPI_BUTTON_SUBCLASS_LID "lid" -#define ACPI_BUTTON_HID_LID "PNP0C0D" -#define ACPI_BUTTON_DEVICE_NAME_LID "Lid Switch" -#define ACPI_BUTTON_TYPE_LID 0x05 - -#define _COMPONENT ACPI_BUTTON_COMPONENT -ACPI_MODULE_NAME("acpi_button") - - MODULE_AUTHOR("Paul Diefenbaugh"); -MODULE_DESCRIPTION(ACPI_BUTTON_DRIVER_NAME); -MODULE_LICENSE("GPL"); - -static int acpi_button_add(struct acpi_device *device); -static int acpi_button_remove(struct acpi_device *device, int type); -static int acpi_button_info_open_fs(struct inode *inode, struct file *file); -static int acpi_button_state_open_fs(struct inode *inode, struct file *file); - -static struct acpi_driver acpi_button_driver = { - .name = ACPI_BUTTON_DRIVER_NAME, - .class = ACPI_BUTTON_CLASS, - .ids = "ACPI_FPB,ACPI_FSB,PNP0C0D,PNP0C0C,PNP0C0E", - .ops = { - .add = acpi_button_add, - .remove = acpi_button_remove, - }, -}; - -struct acpi_button { - acpi_handle handle; - struct acpi_device *device; /* Fixed button kludge */ - u8 type; - unsigned long pushed; -}; - -static struct file_operations acpi_button_info_fops = { - .open = acpi_button_info_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -static struct file_operations acpi_button_state_fops = { - .open = acpi_button_state_open_fs, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -/* -------------------------------------------------------------------------- - FS Interface (/proc) - -------------------------------------------------------------------------- */ - -static struct proc_dir_entry *acpi_button_dir; - -static int acpi_button_info_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_button *button = (struct acpi_button *)seq->private; - - ACPI_FUNCTION_TRACE("acpi_button_info_seq_show"); - - if (!button || !button->device) - return_VALUE(0); - - seq_printf(seq, "type: %s\n", - acpi_device_name(button->device)); - - return_VALUE(0); -} - -static int acpi_button_info_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_button_info_seq_show, PDE(inode)->data); -} - -static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) -{ - struct acpi_button *button = (struct acpi_button *)seq->private; - acpi_status status; - unsigned long state; - - ACPI_FUNCTION_TRACE("acpi_button_state_seq_show"); - - if (!button || !button->device) - return_VALUE(0); - - status = acpi_evaluate_integer(button->handle, "_LID", NULL, &state); - if (ACPI_FAILURE(status)) { - seq_printf(seq, "state: unsupported\n"); - } else { - seq_printf(seq, "state: %s\n", - (state ? "open" : "closed")); - } - - return_VALUE(0); -} - -static int acpi_button_state_open_fs(struct inode *inode, struct file *file) -{ - return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); -} - -static struct proc_dir_entry *acpi_power_dir; -static struct proc_dir_entry *acpi_sleep_dir; -static struct proc_dir_entry *acpi_lid_dir; - -static int acpi_button_add_fs(struct acpi_device *device) -{ - struct proc_dir_entry *entry = NULL; - struct acpi_button *button = NULL; - - ACPI_FUNCTION_TRACE("acpi_button_add_fs"); - - if (!device || !acpi_driver_data(device)) - return_VALUE(-EINVAL); - - button = acpi_driver_data(device); - - switch (button->type) { - case ACPI_BUTTON_TYPE_POWER: - case ACPI_BUTTON_TYPE_POWERF: - if (!acpi_power_dir) - acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, - acpi_button_dir); - entry = acpi_power_dir; - break; - case ACPI_BUTTON_TYPE_SLEEP: - case ACPI_BUTTON_TYPE_SLEEPF: - if (!acpi_sleep_dir) - acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, - acpi_button_dir); - entry = acpi_sleep_dir; - break; - case ACPI_BUTTON_TYPE_LID: - if (!acpi_lid_dir) - acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID, - acpi_button_dir); - entry = acpi_lid_dir; - break; - } - - if (!entry) - return_VALUE(-ENODEV); - entry->owner = THIS_MODULE; - - acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry); - if (!acpi_device_dir(device)) - return_VALUE(-ENODEV); - acpi_device_dir(device)->owner = THIS_MODULE; - - /* 'info' [R] */ - entry = create_proc_entry(ACPI_BUTTON_FILE_INFO, - S_IRUGO, acpi_device_dir(device)); - if (!entry) - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BUTTON_FILE_INFO)); - else { - entry->proc_fops = &acpi_button_info_fops; - entry->data = acpi_driver_data(device); - entry->owner = THIS_MODULE; - } - - /* show lid state [R] */ - if (button->type == ACPI_BUTTON_TYPE_LID) { - entry = create_proc_entry(ACPI_BUTTON_FILE_STATE, - S_IRUGO, acpi_device_dir(device)); - if (!entry) - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Unable to create '%s' fs entry\n", - ACPI_BUTTON_FILE_INFO)); - else { - entry->proc_fops = &acpi_button_state_fops; - entry->data = acpi_driver_data(device); - entry->owner = THIS_MODULE; - } - } - - return_VALUE(0); -} - -static int acpi_button_remove_fs(struct acpi_device *device) -{ - struct acpi_button *button = NULL; - - ACPI_FUNCTION_TRACE("acpi_button_remove_fs"); - - button = acpi_driver_data(device); - if (acpi_device_dir(device)) { - if (button->type == ACPI_BUTTON_TYPE_LID) - remove_proc_entry(ACPI_BUTTON_FILE_STATE, - acpi_device_dir(device)); - remove_proc_entry(ACPI_BUTTON_FILE_INFO, - acpi_device_dir(device)); - - remove_proc_entry(acpi_device_bid(device), - acpi_device_dir(device)->parent); - acpi_device_dir(device) = NULL; - } - - return_VALUE(0); -} - -/* -------------------------------------------------------------------------- - Driver Interface - -------------------------------------------------------------------------- */ - -static void acpi_button_notify(acpi_handle handle, u32 event, void *data) -{ - struct acpi_button *button = (struct acpi_button *)data; - - ACPI_FUNCTION_TRACE("acpi_button_notify"); - - if (!button || !button->device) - return_VOID; - - switch (event) { - case ACPI_BUTTON_NOTIFY_STATUS: - acpi_bus_generate_event(button->device, event, - ++button->pushed); - break; - default: - ACPI_DEBUG_PRINT((ACPI_DB_INFO, - "Unsupported event [0x%x]\n", event)); - break; - } - - return_VOID; -} - -static acpi_status acpi_button_notify_fixed(void *data) -{ - struct acpi_button *button = (struct acpi_button *)data; - - ACPI_FUNCTION_TRACE("acpi_button_notify_fixed"); - - if (!button) - return_ACPI_STATUS(AE_BAD_PARAMETER); - - acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button); - - return_ACPI_STATUS(AE_OK); -} - -static int acpi_button_add(struct acpi_device *device) -{ - int result = 0; - acpi_status status = AE_OK; - struct acpi_button *button = NULL; - - ACPI_FUNCTION_TRACE("acpi_button_add"); - - if (!device) - return_VALUE(-EINVAL); - - button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL); - if (!button) - return_VALUE(-ENOMEM); - memset(button, 0, sizeof(struct acpi_button)); - - button->device = device; - button->handle = device->handle; - acpi_driver_data(device) = button; - - /* - * Determine the button type (via hid), as fixed-feature buttons - * need to be handled a bit differently than generic-space. - */ - if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) { - button->type = ACPI_BUTTON_TYPE_POWER; - strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER); - sprintf(acpi_device_class(device), "%s/%s", - ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); - } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) { - button->type = ACPI_BUTTON_TYPE_POWERF; - strcpy(acpi_device_name(device), - ACPI_BUTTON_DEVICE_NAME_POWERF); - sprintf(acpi_device_class(device), "%s/%s", - ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); - } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) { - button->type = ACPI_BUTTON_TYPE_SLEEP; - strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP); - sprintf(acpi_device_class(device), "%s/%s", - ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); - } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) { - button->type = ACPI_BUTTON_TYPE_SLEEPF; - strcpy(acpi_device_name(device), - ACPI_BUTTON_DEVICE_NAME_SLEEPF); - sprintf(acpi_device_class(device), "%s/%s", - ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); - } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) { - button->type = ACPI_BUTTON_TYPE_LID; - strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID); - sprintf(acpi_device_class(device), "%s/%s", - ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID); - } else { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unsupported hid [%s]\n", - acpi_device_hid(device))); - result = -ENODEV; - goto end; - } - - result = acpi_button_add_fs(device); - if (result) - goto end; - - switch (button->type) { - case ACPI_BUTTON_TYPE_POWERF: - status = - acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, - acpi_button_notify_fixed, - button); - break; - case ACPI_BUTTON_TYPE_SLEEPF: - status = - acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, - acpi_button_notify_fixed, - button); - break; - default: - status = acpi_install_notify_handler(button->handle, - ACPI_DEVICE_NOTIFY, - acpi_button_notify, - button); - break; - } - - if (ACPI_FAILURE(status)) { - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Error installing notify handler\n")); - result = -ENODEV; - goto end; - } - - if (device->wakeup.flags.valid) { - /* Button's GPE is run-wake GPE */ - acpi_set_gpe_type(device->wakeup.gpe_device, - device->wakeup.gpe_number, - ACPI_GPE_TYPE_WAKE_RUN); - acpi_enable_gpe(device->wakeup.gpe_device, - device->wakeup.gpe_number, ACPI_NOT_ISR); - device->wakeup.state.enabled = 1; - } - - printk(KERN_INFO PREFIX "%s [%s]\n", - acpi_device_name(device), acpi_device_bid(device)); - - end: - if (result) { - acpi_button_remove_fs(device); - kfree(button); - } - - return_VALUE(result); -} - -static int acpi_button_remove(struct acpi_device *device, int type) -{ - acpi_status status = 0; - struct acpi_button *button = NULL; - - ACPI_FUNCTION_TRACE("acpi_button_remove"); - - if (!device || !acpi_driver_data(device)) - return_VALUE(-EINVAL); - - button = acpi_driver_data(device); - - /* Unregister for device notifications. */ - switch (button->type) { - case ACPI_BUTTON_TYPE_POWERF: - status = - acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, - acpi_button_notify_fixed); - break; - case ACPI_BUTTON_TYPE_SLEEPF: - status = - acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, - acpi_button_notify_fixed); - break; - default: - status = acpi_remove_notify_handler(button->handle, - ACPI_DEVICE_NOTIFY, - acpi_button_notify); - break; - } - - if (ACPI_FAILURE(status)) - ACPI_DEBUG_PRINT((ACPI_DB_ERROR, - "Error removing notify handler\n")); - - acpi_button_remove_fs(device); - - kfree(button); - - return_VALUE(0); -} - -static int __init acpi_button_init(void) -{ - int result = 0; - - ACPI_FUNCTION_TRACE("acpi_button_init"); - - acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir); - if (!acpi_button_dir) - return_VALUE(-ENODEV); - acpi_button_dir->owner = THIS_MODULE; - result = acpi_bus_register_driver(&acpi_button_driver); - if (result < 0) { - remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); - return_VALUE(-ENODEV); - } - - return_VALUE(0); -} - -static void __exit acpi_button_exit(void) -{ - ACPI_FUNCTION_TRACE("acpi_button_exit"); - - acpi_bus_unregister_driver(&acpi_button_driver); - - if (acpi_power_dir) - remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, acpi_button_dir); - if (acpi_sleep_dir) - remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, acpi_button_dir); - if (acpi_lid_dir) - remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); - remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); - - return_VOID; -} - -module_init(acpi_button_init); -module_exit(acpi_button_exit); diff --git a/drivers/acpi/drivers/legacy/Makefile b/drivers/acpi/drivers/legacy/Makefile index 1b85acb..56a433c 100644 --- a/drivers/acpi/drivers/legacy/Makefile +++ b/drivers/acpi/drivers/legacy/Makefile @@ -1,3 +1,4 @@ obj-$(CONFIG_ACPI_AC) += ac.o obj-$(CONFIG_ACPI_BATTERY) += battery.o +obj-$(CONFIG_ACPI_BUTTON) += button.o diff --git a/drivers/acpi/drivers/legacy/button.c b/drivers/acpi/drivers/legacy/button.c new file mode 100644 index 0000000..4b6d9f0 --- /dev/null +++ b/drivers/acpi/drivers/legacy/button.c @@ -0,0 +1,491 @@ +/* + * acpi_button.c - ACPI Button Driver ($Revision: 30 $) + * + * Copyright (C) 2001, 2002 Andy Grover + * Copyright (C) 2001, 2002 Paul Diefenbaugh + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or (at + * your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + * + * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#define ACPI_BUTTON_COMPONENT 0x00080000 +#define ACPI_BUTTON_DRIVER_NAME "ACPI Button Driver" +#define ACPI_BUTTON_CLASS "button" +#define ACPI_BUTTON_FILE_INFO "info" +#define ACPI_BUTTON_FILE_STATE "state" +#define ACPI_BUTTON_TYPE_UNKNOWN 0x00 +#define ACPI_BUTTON_NOTIFY_STATUS 0x80 + +#define ACPI_BUTTON_SUBCLASS_POWER "power" +#define ACPI_BUTTON_HID_POWER "PNP0C0C" +#define ACPI_BUTTON_DEVICE_NAME_POWER "Power Button (CM)" +#define ACPI_BUTTON_DEVICE_NAME_POWERF "Power Button (FF)" +#define ACPI_BUTTON_TYPE_POWER 0x01 +#define ACPI_BUTTON_TYPE_POWERF 0x02 + +#define ACPI_BUTTON_SUBCLASS_SLEEP "sleep" +#define ACPI_BUTTON_HID_SLEEP "PNP0C0E" +#define ACPI_BUTTON_DEVICE_NAME_SLEEP "Sleep Button (CM)" +#define ACPI_BUTTON_DEVICE_NAME_SLEEPF "Sleep Button (FF)" +#define ACPI_BUTTON_TYPE_SLEEP 0x03 +#define ACPI_BUTTON_TYPE_SLEEPF 0x04 + +#define ACPI_BUTTON_SUBCLASS_LID "lid" +#define ACPI_BUTTON_HID_LID "PNP0C0D" +#define ACPI_BUTTON_DEVICE_NAME_LID "Lid Switch" +#define ACPI_BUTTON_TYPE_LID 0x05 + +#define _COMPONENT ACPI_BUTTON_COMPONENT +ACPI_MODULE_NAME("acpi_button") + + MODULE_AUTHOR("Paul Diefenbaugh"); +MODULE_DESCRIPTION(ACPI_BUTTON_DRIVER_NAME); +MODULE_LICENSE("GPL"); + +static int acpi_button_add(struct acpi_device *device); +static int acpi_button_remove(struct acpi_device *device, int type); +static int acpi_button_info_open_fs(struct inode *inode, struct file *file); +static int acpi_button_state_open_fs(struct inode *inode, struct file *file); + +static struct acpi_driver acpi_button_driver = { + .name = ACPI_BUTTON_DRIVER_NAME, + .class = ACPI_BUTTON_CLASS, + .ids = "ACPI_FPB,ACPI_FSB,PNP0C0D,PNP0C0C,PNP0C0E", + .ops = { + .add = acpi_button_add, + .remove = acpi_button_remove, + }, +}; + +struct acpi_button { + acpi_handle handle; + struct acpi_device *device; /* Fixed button kludge */ + u8 type; + unsigned long pushed; +}; + +static struct file_operations acpi_button_info_fops = { + .open = acpi_button_info_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +static struct file_operations acpi_button_state_fops = { + .open = acpi_button_state_open_fs, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +/* -------------------------------------------------------------------------- + FS Interface (/proc) + -------------------------------------------------------------------------- */ + +static struct proc_dir_entry *acpi_button_dir; + +static int acpi_button_info_seq_show(struct seq_file *seq, void *offset) +{ + struct acpi_button *button = (struct acpi_button *)seq->private; + + ACPI_FUNCTION_TRACE("acpi_button_info_seq_show"); + + if (!button || !button->device) + return_VALUE(0); + + seq_printf(seq, "type: %s\n", + acpi_device_name(button->device)); + + return_VALUE(0); +} + +static int acpi_button_info_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_button_info_seq_show, PDE(inode)->data); +} + +static int acpi_button_state_seq_show(struct seq_file *seq, void *offset) +{ + struct acpi_button *button = (struct acpi_button *)seq->private; + acpi_status status; + unsigned long state; + + ACPI_FUNCTION_TRACE("acpi_button_state_seq_show"); + + if (!button || !button->device) + return_VALUE(0); + + status = acpi_evaluate_integer(button->handle, "_LID", NULL, &state); + if (ACPI_FAILURE(status)) { + seq_printf(seq, "state: unsupported\n"); + } else { + seq_printf(seq, "state: %s\n", + (state ? "open" : "closed")); + } + + return_VALUE(0); +} + +static int acpi_button_state_open_fs(struct inode *inode, struct file *file) +{ + return single_open(file, acpi_button_state_seq_show, PDE(inode)->data); +} + +static struct proc_dir_entry *acpi_power_dir; +static struct proc_dir_entry *acpi_sleep_dir; +static struct proc_dir_entry *acpi_lid_dir; + +static int acpi_button_add_fs(struct acpi_device *device) +{ + struct proc_dir_entry *entry = NULL; + struct acpi_button *button = NULL; + + ACPI_FUNCTION_TRACE("acpi_button_add_fs"); + + if (!device || !acpi_driver_data(device)) + return_VALUE(-EINVAL); + + button = acpi_driver_data(device); + + switch (button->type) { + case ACPI_BUTTON_TYPE_POWER: + case ACPI_BUTTON_TYPE_POWERF: + if (!acpi_power_dir) + acpi_power_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_POWER, + acpi_button_dir); + entry = acpi_power_dir; + break; + case ACPI_BUTTON_TYPE_SLEEP: + case ACPI_BUTTON_TYPE_SLEEPF: + if (!acpi_sleep_dir) + acpi_sleep_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_SLEEP, + acpi_button_dir); + entry = acpi_sleep_dir; + break; + case ACPI_BUTTON_TYPE_LID: + if (!acpi_lid_dir) + acpi_lid_dir = proc_mkdir(ACPI_BUTTON_SUBCLASS_LID, + acpi_button_dir); + entry = acpi_lid_dir; + break; + } + + if (!entry) + return_VALUE(-ENODEV); + entry->owner = THIS_MODULE; + + acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device), entry); + if (!acpi_device_dir(device)) + return_VALUE(-ENODEV); + acpi_device_dir(device)->owner = THIS_MODULE; + + /* 'info' [R] */ + entry = create_proc_entry(ACPI_BUTTON_FILE_INFO, + S_IRUGO, acpi_device_dir(device)); + if (!entry) + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Unable to create '%s' fs entry\n", + ACPI_BUTTON_FILE_INFO)); + else { + entry->proc_fops = &acpi_button_info_fops; + entry->data = acpi_driver_data(device); + entry->owner = THIS_MODULE; + } + + /* show lid state [R] */ + if (button->type == ACPI_BUTTON_TYPE_LID) { + entry = create_proc_entry(ACPI_BUTTON_FILE_STATE, + S_IRUGO, acpi_device_dir(device)); + if (!entry) + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Unable to create '%s' fs entry\n", + ACPI_BUTTON_FILE_INFO)); + else { + entry->proc_fops = &acpi_button_state_fops; + entry->data = acpi_driver_data(device); + entry->owner = THIS_MODULE; + } + } + + return_VALUE(0); +} + +static int acpi_button_remove_fs(struct acpi_device *device) +{ + struct acpi_button *button = NULL; + + ACPI_FUNCTION_TRACE("acpi_button_remove_fs"); + + button = acpi_driver_data(device); + if (acpi_device_dir(device)) { + if (button->type == ACPI_BUTTON_TYPE_LID) + remove_proc_entry(ACPI_BUTTON_FILE_STATE, + acpi_device_dir(device)); + remove_proc_entry(ACPI_BUTTON_FILE_INFO, + acpi_device_dir(device)); + + remove_proc_entry(acpi_device_bid(device), + acpi_device_dir(device)->parent); + acpi_device_dir(device) = NULL; + } + + return_VALUE(0); +} + +/* -------------------------------------------------------------------------- + Driver Interface + -------------------------------------------------------------------------- */ + +static void acpi_button_notify(acpi_handle handle, u32 event, void *data) +{ + struct acpi_button *button = (struct acpi_button *)data; + + ACPI_FUNCTION_TRACE("acpi_button_notify"); + + if (!button || !button->device) + return_VOID; + + switch (event) { + case ACPI_BUTTON_NOTIFY_STATUS: + acpi_bus_generate_event(button->device, event, + ++button->pushed); + break; + default: + ACPI_DEBUG_PRINT((ACPI_DB_INFO, + "Unsupported event [0x%x]\n", event)); + break; + } + + return_VOID; +} + +static acpi_status acpi_button_notify_fixed(void *data) +{ + struct acpi_button *button = (struct acpi_button *)data; + + ACPI_FUNCTION_TRACE("acpi_button_notify_fixed"); + + if (!button) + return_ACPI_STATUS(AE_BAD_PARAMETER); + + acpi_button_notify(button->handle, ACPI_BUTTON_NOTIFY_STATUS, button); + + return_ACPI_STATUS(AE_OK); +} + +static int acpi_button_add(struct acpi_device *device) +{ + int result = 0; + acpi_status status = AE_OK; + struct acpi_button *button = NULL; + + ACPI_FUNCTION_TRACE("acpi_button_add"); + + if (!device) + return_VALUE(-EINVAL); + + button = kmalloc(sizeof(struct acpi_button), GFP_KERNEL); + if (!button) + return_VALUE(-ENOMEM); + memset(button, 0, sizeof(struct acpi_button)); + + button->device = device; + button->handle = device->handle; + acpi_driver_data(device) = button; + + /* + * Determine the button type (via hid), as fixed-feature buttons + * need to be handled a bit differently than generic-space. + */ + if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWER)) { + button->type = ACPI_BUTTON_TYPE_POWER; + strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_POWER); + sprintf(acpi_device_class(device), "%s/%s", + ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); + } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_POWERF)) { + button->type = ACPI_BUTTON_TYPE_POWERF; + strcpy(acpi_device_name(device), + ACPI_BUTTON_DEVICE_NAME_POWERF); + sprintf(acpi_device_class(device), "%s/%s", + ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_POWER); + } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEP)) { + button->type = ACPI_BUTTON_TYPE_SLEEP; + strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_SLEEP); + sprintf(acpi_device_class(device), "%s/%s", + ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); + } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_SLEEPF)) { + button->type = ACPI_BUTTON_TYPE_SLEEPF; + strcpy(acpi_device_name(device), + ACPI_BUTTON_DEVICE_NAME_SLEEPF); + sprintf(acpi_device_class(device), "%s/%s", + ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_SLEEP); + } else if (!strcmp(acpi_device_hid(device), ACPI_BUTTON_HID_LID)) { + button->type = ACPI_BUTTON_TYPE_LID; + strcpy(acpi_device_name(device), ACPI_BUTTON_DEVICE_NAME_LID); + sprintf(acpi_device_class(device), "%s/%s", + ACPI_BUTTON_CLASS, ACPI_BUTTON_SUBCLASS_LID); + } else { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, "Unsupported hid [%s]\n", + acpi_device_hid(device))); + result = -ENODEV; + goto end; + } + + result = acpi_button_add_fs(device); + if (result) + goto end; + + switch (button->type) { + case ACPI_BUTTON_TYPE_POWERF: + status = + acpi_install_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_button_notify_fixed, + button); + break; + case ACPI_BUTTON_TYPE_SLEEPF: + status = + acpi_install_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, + acpi_button_notify_fixed, + button); + break; + default: + status = acpi_install_notify_handler(button->handle, + ACPI_DEVICE_NOTIFY, + acpi_button_notify, + button); + break; + } + + if (ACPI_FAILURE(status)) { + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error installing notify handler\n")); + result = -ENODEV; + goto end; + } + + if (device->wakeup.flags.valid) { + /* Button's GPE is run-wake GPE */ + acpi_set_gpe_type(device->wakeup.gpe_device, + device->wakeup.gpe_number, + ACPI_GPE_TYPE_WAKE_RUN); + acpi_enable_gpe(device->wakeup.gpe_device, + device->wakeup.gpe_number, ACPI_NOT_ISR); + device->wakeup.state.enabled = 1; + } + + printk(KERN_INFO PREFIX "%s [%s]\n", + acpi_device_name(device), acpi_device_bid(device)); + + end: + if (result) { + acpi_button_remove_fs(device); + kfree(button); + } + + return_VALUE(result); +} + +static int acpi_button_remove(struct acpi_device *device, int type) +{ + acpi_status status = 0; + struct acpi_button *button = NULL; + + ACPI_FUNCTION_TRACE("acpi_button_remove"); + + if (!device || !acpi_driver_data(device)) + return_VALUE(-EINVAL); + + button = acpi_driver_data(device); + + /* Unregister for device notifications. */ + switch (button->type) { + case ACPI_BUTTON_TYPE_POWERF: + status = + acpi_remove_fixed_event_handler(ACPI_EVENT_POWER_BUTTON, + acpi_button_notify_fixed); + break; + case ACPI_BUTTON_TYPE_SLEEPF: + status = + acpi_remove_fixed_event_handler(ACPI_EVENT_SLEEP_BUTTON, + acpi_button_notify_fixed); + break; + default: + status = acpi_remove_notify_handler(button->handle, + ACPI_DEVICE_NOTIFY, + acpi_button_notify); + break; + } + + if (ACPI_FAILURE(status)) + ACPI_DEBUG_PRINT((ACPI_DB_ERROR, + "Error removing notify handler\n")); + + acpi_button_remove_fs(device); + + kfree(button); + + return_VALUE(0); +} + +static int __init acpi_button_init(void) +{ + int result = 0; + + ACPI_FUNCTION_TRACE("acpi_button_init"); + + acpi_button_dir = proc_mkdir(ACPI_BUTTON_CLASS, acpi_root_dir); + if (!acpi_button_dir) + return_VALUE(-ENODEV); + acpi_button_dir->owner = THIS_MODULE; + result = acpi_bus_register_driver(&acpi_button_driver); + if (result < 0) { + remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); + return_VALUE(-ENODEV); + } + + return_VALUE(0); +} + +static void __exit acpi_button_exit(void) +{ + ACPI_FUNCTION_TRACE("acpi_button_exit"); + + acpi_bus_unregister_driver(&acpi_button_driver); + + if (acpi_power_dir) + remove_proc_entry(ACPI_BUTTON_SUBCLASS_POWER, acpi_button_dir); + if (acpi_sleep_dir) + remove_proc_entry(ACPI_BUTTON_SUBCLASS_SLEEP, acpi_button_dir); + if (acpi_lid_dir) + remove_proc_entry(ACPI_BUTTON_SUBCLASS_LID, acpi_button_dir); + remove_proc_entry(ACPI_BUTTON_CLASS, acpi_root_dir); + + return_VOID; +} + +module_init(acpi_button_init); +module_exit(acpi_button_exit); --- 0.99.9.GIT