diff options
author | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2009-01-14 16:29:08 +1100 |
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committer | Lachlan McIlroy <lachlan@redback.melbourne.sgi.com> | 2009-01-14 16:29:08 +1100 |
commit | c088f4e9da74b901f7ed1749ad697d77622ed0f9 (patch) | |
tree | 84cddf20369f82f10c1c3712e6cce20dd1b9d863 /drivers/misc/hp-wmi.c | |
parent | ce79735c12d62c3cda38eb31762cf98e87c7b087 (diff) | |
parent | a6525042bfdfcab128bd91fad264de10fd24a55e (diff) |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6
Diffstat (limited to 'drivers/misc/hp-wmi.c')
-rw-r--r-- | drivers/misc/hp-wmi.c | 512 |
1 files changed, 0 insertions, 512 deletions
diff --git a/drivers/misc/hp-wmi.c b/drivers/misc/hp-wmi.c deleted file mode 100644 index 4b7c24c519c..00000000000 --- a/drivers/misc/hp-wmi.c +++ /dev/null @@ -1,512 +0,0 @@ -/* - * HP WMI hotkeys - * - * Copyright (C) 2008 Red Hat <mjg@redhat.com> - * - * Portions based on wistron_btns.c: - * Copyright (C) 2005 Miloslav Trmac <mitr@volny.cz> - * Copyright (C) 2005 Bernhard Rosenkraenzer <bero@arklinux.org> - * Copyright (C) 2005 Dmitry Torokhov <dtor@mail.ru> - * - * 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 <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/types.h> -#include <linux/input.h> -#include <acpi/acpi_drivers.h> -#include <linux/platform_device.h> -#include <linux/acpi.h> -#include <linux/rfkill.h> -#include <linux/string.h> - -MODULE_AUTHOR("Matthew Garrett <mjg59@srcf.ucam.org>"); -MODULE_DESCRIPTION("HP laptop WMI hotkeys driver"); -MODULE_LICENSE("GPL"); - -MODULE_ALIAS("wmi:95F24279-4D7B-4334-9387-ACCDC67EF61C"); -MODULE_ALIAS("wmi:5FB7F034-2C63-45e9-BE91-3D44E2C707E4"); - -#define HPWMI_EVENT_GUID "95F24279-4D7B-4334-9387-ACCDC67EF61C" -#define HPWMI_BIOS_GUID "5FB7F034-2C63-45e9-BE91-3D44E2C707E4" - -#define HPWMI_DISPLAY_QUERY 0x1 -#define HPWMI_HDDTEMP_QUERY 0x2 -#define HPWMI_ALS_QUERY 0x3 -#define HPWMI_DOCK_QUERY 0x4 -#define HPWMI_WIRELESS_QUERY 0x5 -#define HPWMI_HOTKEY_QUERY 0xc - -static int __init hp_wmi_bios_setup(struct platform_device *device); -static int __exit hp_wmi_bios_remove(struct platform_device *device); - -struct bios_args { - u32 signature; - u32 command; - u32 commandtype; - u32 datasize; - u32 data; -}; - -struct bios_return { - u32 sigpass; - u32 return_code; - u32 value; -}; - -struct key_entry { - char type; /* See KE_* below */ - u16 code; - u16 keycode; -}; - -enum { KE_KEY, KE_SW, KE_END }; - -static struct key_entry hp_wmi_keymap[] = { - {KE_SW, 0x01, SW_DOCK}, - {KE_KEY, 0x02, KEY_BRIGHTNESSUP}, - {KE_KEY, 0x03, KEY_BRIGHTNESSDOWN}, - {KE_KEY, 0x20e6, KEY_PROG1}, - {KE_KEY, 0x2142, KEY_MEDIA}, - {KE_KEY, 0x213b, KEY_INFO}, - {KE_KEY, 0x231b, KEY_HELP}, - {KE_END, 0} -}; - -static struct input_dev *hp_wmi_input_dev; -static struct platform_device *hp_wmi_platform_dev; - -static struct rfkill *wifi_rfkill; -static struct rfkill *bluetooth_rfkill; -static struct rfkill *wwan_rfkill; - -static struct platform_driver hp_wmi_driver = { - .driver = { - .name = "hp-wmi", - .owner = THIS_MODULE, - }, - .probe = hp_wmi_bios_setup, - .remove = hp_wmi_bios_remove, -}; - -static int hp_wmi_perform_query(int query, int write, int value) -{ - struct bios_return bios_return; - acpi_status status; - union acpi_object *obj; - struct bios_args args = { - .signature = 0x55434553, - .command = write ? 0x2 : 0x1, - .commandtype = query, - .datasize = write ? 0x4 : 0, - .data = value, - }; - struct acpi_buffer input = { sizeof(struct bios_args), &args }; - struct acpi_buffer output = { ACPI_ALLOCATE_BUFFER, NULL }; - - status = wmi_evaluate_method(HPWMI_BIOS_GUID, 0, 0x3, &input, &output); - - obj = output.pointer; - - if (!obj || obj->type != ACPI_TYPE_BUFFER) - return -EINVAL; - - bios_return = *((struct bios_return *)obj->buffer.pointer); - if (bios_return.return_code > 0) - return bios_return.return_code * -1; - else - return bios_return.value; -} - -static int hp_wmi_display_state(void) -{ - return hp_wmi_perform_query(HPWMI_DISPLAY_QUERY, 0, 0); -} - -static int hp_wmi_hddtemp_state(void) -{ - return hp_wmi_perform_query(HPWMI_HDDTEMP_QUERY, 0, 0); -} - -static int hp_wmi_als_state(void) -{ - return hp_wmi_perform_query(HPWMI_ALS_QUERY, 0, 0); -} - -static int hp_wmi_dock_state(void) -{ - return hp_wmi_perform_query(HPWMI_DOCK_QUERY, 0, 0); -} - -static int hp_wmi_wifi_set(void *data, enum rfkill_state state) -{ - if (state) - return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x101); - else - return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x100); -} - -static int hp_wmi_bluetooth_set(void *data, enum rfkill_state state) -{ - if (state) - return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x202); - else - return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x200); -} - -static int hp_wmi_wwan_set(void *data, enum rfkill_state state) -{ - if (state) - return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x404); - else - return hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 1, 0x400); -} - -static int hp_wmi_wifi_state(void) -{ - int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); - - if (wireless & 0x100) - return RFKILL_STATE_UNBLOCKED; - else - return RFKILL_STATE_SOFT_BLOCKED; -} - -static int hp_wmi_bluetooth_state(void) -{ - int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); - - if (wireless & 0x10000) - return RFKILL_STATE_UNBLOCKED; - else - return RFKILL_STATE_SOFT_BLOCKED; -} - -static int hp_wmi_wwan_state(void) -{ - int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); - - if (wireless & 0x1000000) - return RFKILL_STATE_UNBLOCKED; - else - return RFKILL_STATE_SOFT_BLOCKED; -} - -static ssize_t show_display(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_display_state(); - if (value < 0) - return -EINVAL; - return sprintf(buf, "%d\n", value); -} - -static ssize_t show_hddtemp(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_hddtemp_state(); - if (value < 0) - return -EINVAL; - return sprintf(buf, "%d\n", value); -} - -static ssize_t show_als(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_als_state(); - if (value < 0) - return -EINVAL; - return sprintf(buf, "%d\n", value); -} - -static ssize_t show_dock(struct device *dev, struct device_attribute *attr, - char *buf) -{ - int value = hp_wmi_dock_state(); - if (value < 0) - return -EINVAL; - return sprintf(buf, "%d\n", value); -} - -static ssize_t set_als(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - u32 tmp = simple_strtoul(buf, NULL, 10); - hp_wmi_perform_query(HPWMI_ALS_QUERY, 1, tmp); - return count; -} - -static DEVICE_ATTR(display, S_IRUGO, show_display, NULL); -static DEVICE_ATTR(hddtemp, S_IRUGO, show_hddtemp, NULL); -static DEVICE_ATTR(als, S_IRUGO | S_IWUSR, show_als, set_als); -static DEVICE_ATTR(dock, S_IRUGO, show_dock, NULL); - -static struct key_entry *hp_wmi_get_entry_by_scancode(int code) -{ - struct key_entry *key; - - for (key = hp_wmi_keymap; key->type != KE_END; key++) - if (code == key->code) - return key; - - return NULL; -} - -static struct key_entry *hp_wmi_get_entry_by_keycode(int keycode) -{ - struct key_entry *key; - - for (key = hp_wmi_keymap; key->type != KE_END; key++) - if (key->type == KE_KEY && keycode == key->keycode) - return key; - - return NULL; -} - -static int hp_wmi_getkeycode(struct input_dev *dev, int scancode, int *keycode) -{ - struct key_entry *key = hp_wmi_get_entry_by_scancode(scancode); - - if (key && key->type == KE_KEY) { - *keycode = key->keycode; - return 0; - } - - return -EINVAL; -} - -static int hp_wmi_setkeycode(struct input_dev *dev, int scancode, int keycode) -{ - struct key_entry *key; - int old_keycode; - - if (keycode < 0 || keycode > KEY_MAX) - return -EINVAL; - - key = hp_wmi_get_entry_by_scancode(scancode); - if (key && key->type == KE_KEY) { - old_keycode = key->keycode; - key->keycode = keycode; - set_bit(keycode, dev->keybit); - if (!hp_wmi_get_entry_by_keycode(old_keycode)) - clear_bit(old_keycode, dev->keybit); - return 0; - } - - return -EINVAL; -} - -static void hp_wmi_notify(u32 value, void *context) -{ - struct acpi_buffer response = { ACPI_ALLOCATE_BUFFER, NULL }; - static struct key_entry *key; - union acpi_object *obj; - - wmi_get_event_data(value, &response); - - obj = (union acpi_object *)response.pointer; - - if (obj && obj->type == ACPI_TYPE_BUFFER && obj->buffer.length == 8) { - int eventcode = *((u8 *) obj->buffer.pointer); - if (eventcode == 0x4) - eventcode = hp_wmi_perform_query(HPWMI_HOTKEY_QUERY, 0, - 0); - key = hp_wmi_get_entry_by_scancode(eventcode); - if (key) { - switch (key->type) { - case KE_KEY: - input_report_key(hp_wmi_input_dev, - key->keycode, 1); - input_sync(hp_wmi_input_dev); - input_report_key(hp_wmi_input_dev, - key->keycode, 0); - input_sync(hp_wmi_input_dev); - break; - case KE_SW: - input_report_switch(hp_wmi_input_dev, - key->keycode, - hp_wmi_dock_state()); - input_sync(hp_wmi_input_dev); - break; - } - } else if (eventcode == 0x5) { - if (wifi_rfkill) - rfkill_force_state(wifi_rfkill, - hp_wmi_wifi_state()); - if (bluetooth_rfkill) - rfkill_force_state(bluetooth_rfkill, - hp_wmi_bluetooth_state()); - if (wwan_rfkill) - rfkill_force_state(wwan_rfkill, - hp_wmi_wwan_state()); - } else - printk(KERN_INFO "HP WMI: Unknown key pressed - %x\n", - eventcode); - } else - printk(KERN_INFO "HP WMI: Unknown response received\n"); -} - -static int __init hp_wmi_input_setup(void) -{ - struct key_entry *key; - int err; - - hp_wmi_input_dev = input_allocate_device(); - - hp_wmi_input_dev->name = "HP WMI hotkeys"; - hp_wmi_input_dev->phys = "wmi/input0"; - hp_wmi_input_dev->id.bustype = BUS_HOST; - hp_wmi_input_dev->getkeycode = hp_wmi_getkeycode; - hp_wmi_input_dev->setkeycode = hp_wmi_setkeycode; - - for (key = hp_wmi_keymap; key->type != KE_END; key++) { - switch (key->type) { - case KE_KEY: - set_bit(EV_KEY, hp_wmi_input_dev->evbit); - set_bit(key->keycode, hp_wmi_input_dev->keybit); - break; - case KE_SW: - set_bit(EV_SW, hp_wmi_input_dev->evbit); - set_bit(key->keycode, hp_wmi_input_dev->swbit); - break; - } - } - - err = input_register_device(hp_wmi_input_dev); - - if (err) { - input_free_device(hp_wmi_input_dev); - return err; - } - - return 0; -} - -static void cleanup_sysfs(struct platform_device *device) -{ - device_remove_file(&device->dev, &dev_attr_display); - device_remove_file(&device->dev, &dev_attr_hddtemp); - device_remove_file(&device->dev, &dev_attr_als); - device_remove_file(&device->dev, &dev_attr_dock); -} - -static int __init hp_wmi_bios_setup(struct platform_device *device) -{ - int err; - int wireless = hp_wmi_perform_query(HPWMI_WIRELESS_QUERY, 0, 0); - - err = device_create_file(&device->dev, &dev_attr_display); - if (err) - goto add_sysfs_error; - err = device_create_file(&device->dev, &dev_attr_hddtemp); - if (err) - goto add_sysfs_error; - err = device_create_file(&device->dev, &dev_attr_als); - if (err) - goto add_sysfs_error; - err = device_create_file(&device->dev, &dev_attr_dock); - if (err) - goto add_sysfs_error; - - if (wireless & 0x1) { - wifi_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WLAN); - wifi_rfkill->name = "hp-wifi"; - wifi_rfkill->state = hp_wmi_wifi_state(); - wifi_rfkill->toggle_radio = hp_wmi_wifi_set; - wifi_rfkill->user_claim_unsupported = 1; - rfkill_register(wifi_rfkill); - } - - if (wireless & 0x2) { - bluetooth_rfkill = rfkill_allocate(&device->dev, - RFKILL_TYPE_BLUETOOTH); - bluetooth_rfkill->name = "hp-bluetooth"; - bluetooth_rfkill->state = hp_wmi_bluetooth_state(); - bluetooth_rfkill->toggle_radio = hp_wmi_bluetooth_set; - bluetooth_rfkill->user_claim_unsupported = 1; - rfkill_register(bluetooth_rfkill); - } - - if (wireless & 0x4) { - wwan_rfkill = rfkill_allocate(&device->dev, RFKILL_TYPE_WWAN); - wwan_rfkill->name = "hp-wwan"; - wwan_rfkill->state = hp_wmi_wwan_state(); - wwan_rfkill->toggle_radio = hp_wmi_wwan_set; - wwan_rfkill->user_claim_unsupported = 1; - rfkill_register(wwan_rfkill); - } - - return 0; -add_sysfs_error: - cleanup_sysfs(device); - return err; -} - -static int __exit hp_wmi_bios_remove(struct platform_device *device) -{ - cleanup_sysfs(device); - - if (wifi_rfkill) - rfkill_unregister(wifi_rfkill); - if (bluetooth_rfkill) - rfkill_unregister(bluetooth_rfkill); - if (wwan_rfkill) - rfkill_unregister(wwan_rfkill); - - return 0; -} - -static int __init hp_wmi_init(void) -{ - int err; - - if (wmi_has_guid(HPWMI_EVENT_GUID)) { - err = wmi_install_notify_handler(HPWMI_EVENT_GUID, - hp_wmi_notify, NULL); - if (!err) - hp_wmi_input_setup(); - } - - if (wmi_has_guid(HPWMI_BIOS_GUID)) { - err = platform_driver_register(&hp_wmi_driver); - if (err) - return 0; - hp_wmi_platform_dev = platform_device_alloc("hp-wmi", -1); - if (!hp_wmi_platform_dev) { - platform_driver_unregister(&hp_wmi_driver); - return 0; - } - platform_device_add(hp_wmi_platform_dev); - } - - return 0; -} - -static void __exit hp_wmi_exit(void) -{ - if (wmi_has_guid(HPWMI_EVENT_GUID)) { - wmi_remove_notify_handler(HPWMI_EVENT_GUID); - input_unregister_device(hp_wmi_input_dev); - } - if (hp_wmi_platform_dev) { - platform_device_del(hp_wmi_platform_dev); - platform_driver_unregister(&hp_wmi_driver); - } -} - -module_init(hp_wmi_init); -module_exit(hp_wmi_exit); |